METHOD AND DEVICE FOR SEPARATING PRINTING INK AND FIBER BY DRY-PROCESS MAGNETIC FORCE DIFFERENCE COUPLED VIBRATION

Abstract

A method and device for separating a printing ink and a fiber by dry-process magnetic force difference coupled vibration. The device comprises a fiber crushing machine unit (1), a magnetic force difference coupled vibrator (2), an acceleration fan (3), a ballistic rebounding and resorbing device (4), a material settling and conveying pipe (5), and a cylindrical separator (6) which are sequentially connected by means of pipes. According to the method and the device, separation of printing inks and fibers in waste paper can be implemented by means of dry-process magnetic force difference coupled vibration, and recycling of waste paper products is implemented.

Claims

1: A device for separating printing inks and fibers by dry-process magnetic force difference coupled vibration, comprising a fiber crusher (1), a magnetic force difference coupled vibrator (2), an accelerating fan (3), a ballistic rebound sucker (4), a material settling and conveying pipe (5), and a cylindrical separator (6) which are sequentially connected through pipelines, wherein a magnetic conductive iron sheet (21), a homopolar near-frequency magnetic conductive iron sheet (24), and a magnetic shielding structure (25) which are sequentially connected through continuous iron bars and coils (23) are arranged in a center of a shell of the magnetic force difference coupled vibrator (2) from a fiber inlet (22) to a fiber outlet (29) of the shell of the magnetic force difference coupled vibrator (2); a vibration domain (26) is formed in an empty cavity in the shell of the magnetic force difference coupled vibrator (2); temperature controllers (27) and thermostats (28) are arranged on an outer side of the shell of the magnetic force difference coupled vibrator (2); a middle part of the ballistic rebound sucker (4) is connected to the accelerating fan (3) through an accelerating tube (41); printing ink rebound ballistic path baffles (42) and ballistic rebound plates (43) are arranged in sequence from a middle part of a shell of the ballistic rebound sucker (4) towards an upper part of the shell of the ballistic rebound sucker (4); a heavy ink recycling apparatus (45) communicates with an interior of the shell of the ballistic rebound sucker (4) through a sucker fan (44) disposed on the upper part of the shell of the ballistic rebound sucker (4); a fiber resistance plate (46) is downwardly arranged from the middle part of the shell of the ballistic rebound sucker (4); the cylindrical separator (6) communicates with the interior of the shell of the ballistic rebound sucker (4) through the material settling and conveying pipe (5); a disc fan collector (61) is arranged on an upper part of a shell of the cylindrical separator (6); a fiber discharge port (62) is formed on a lower part of the shell of the cylindrical separator (6), and the fiber discharge port (62) communicates with a collector (63).

2: The device of claim 1, wherein the fiber crusher (1) is a disc mill crusher having a fixed knife (11) and a movable knife rotor (12) inside the disc mill crusher.

3: The device of claim 1, wherein more than two of said printing ink rebound ballistic path baffles (42) are arranged in the ballistic rebound sucker (4).

4: The device of claim 1, wherein more than two of said ballistic rebound plates (43) are arranged on the upper part of the shell of the ballistic rebound sucker (4).

5: A method for separating printing inks from fibers by dry-process magnetic force difference coupled vibration, comprising the following steps: step 1, putting waste paper products into a fiber crusher (1) to crush the waste paper products; step 2, feeding the waste paper products crushed being a mixture of fibers and ink material particles into a magnetic force difference coupled vibrator (2) through a conveying pipe (13) and an accelerating fan (3), wherein the magnetic force difference coupled vibrator (2) is provided with a fiber inlet (22) which is connected to the fiber crusher (1) through the conveying pipe (13); step 3, subjecting the ink material particles in the mixture to magnetic forces created by a magnetic conductive iron sheet (21) and a homopolar near-frequency magnetic conductive iron sheet (24) disposed inside the magnetic force difference coupled vibrator (2) and thus generate normal mode vibration when the mixture passes through the magnetic conductive iron sheet (21) and a homopolar near-frequency magnetic conductive iron sheet (24), wherein: the magnetic conductive iron sheet (21) and a homopolar near-frequency magnetic conductive iron sheet (24) give out magnetic fields of K quantity respectively; the magnetic conductive iron sheet (21) and the continuous iron bars and coils (23) at a front part of the magnetic force difference coupled vibrator (2) between the magnetic conductive iron sheet (21) and the homopolar near-frequency magnetic conductive iron sheet (24) are subject to a homopolar magnetic field L1; the homopolar near-frequency magnetic conductive iron sheet 24 and the continuous iron bars and coils (23) at a rear part of the magnetic force difference coupled vibrator (2) between the homopolar near-frequency magnetic conductive iron sheet (24) and the magnetic shielding structure (25) are subject to another homopolar magnetic field L2; L1 and L2 are homopolar near-frequency magnetic fields; when the ink material particles pass through the magnetic fields (L1 and L2) with near frequencies, the ink material particles are subject to coupled vibration in a vibration domain (26) inside the magnetic force difference coupled vibrator (2); arranging temperature controllers (27) and thermostats (28) on an outer side of a shell of the magnetic force difference coupled vibrator (2) to maintain a temperature of the magnetic force difference coupled vibrator (2); the ink material particles are subject to coupled vibration due to normal mode vibration generated by the magnetic fields in the vibration domain (26), while the fibers continue to enter a magnetic shielding structure (25) according to a flowing path of air flow. step 4, magnetically shielding, by the magnetic shielding structure (25), the magnetic conductive iron sheet (21) and the homopolar near-frequency magnetic conductive iron sheet (24), such that the ink material particles are no longer subject to perturbation by different normal mode vibration in the magnetic fields, but the coupled vibration of the ink material particles are partially maintained due to inertia; also arranging an acceleration tube (41) in a middle part of a ballistic rebound sucker (4), and the ink material particles still partially subject to coupled vibration due to inertia and the fibers enter the ballistic rebound sucker (4) through the accelerating tube (41); in the ballistic rebound sucker (4), due to a sucker fan (44) and printing ink rebound ballistic path baffles (42) arranged on an upper part of the ballistic rebound sucker (4), the air flow is blocked from advancing linearly and from moving parabolically by using the printing ink rebound ballistic path baffles (42), when a flowing direction of the air flow carrying the ink material particles and the fibers turns rapidly upon impact with the printing ink rebound ballistic path baffles (42), fibers insufficiently driven to turn with the air flow will mostly descend in a spiral gravity under inertial force, while ink material particles lighter than the fibers and accelerated forwards with inertia coupled vibration will ascend together with a slight amount of fibers due to the ballistic rebound plates (43) and suction force of the sucker fan (44) arranged on the upper part of the ballistic rebound sucker (4), while ink material particles which are lighter compared with ascended ink material particles and remaining fibers are subjected to downward spiral sedimentation movement along a fiber resistance plate (46) provided inside the ballistic rebound sucker (4); further, flow directions of the ink material particles with inertia coupled vibration and the slight amount of fibers ascending to the upper part of the ballistic rebound sucker (4) are rapidly changed due to resistance of conical covers (431) of the ballistic rebound plates (43), and simultaneously, due to an increase in cross section of a flow of the ascended ink material particles with inertia coupled vibration mixed with the slight amount of fibers, a cross sectional flow rate of the flow of the ascended ink material particles with inertia coupled vibration mixed with the slight amount of fibers is reduced sharply, and so the slight amount of fibers are then separated from the ascended ink material particles with inertia coupled vibration under gravity and drop onto the ballistic rebound plates (43) or the fiber resistance plate (46), thus allowing the ascended ink material particles with inertia coupled vibration to continue to ascend; wherein use of the ballistic rebound plates (43) separates the fibers from the ink material particles in the ballistic rebound sucker (4); and step 5, collecting the ascended ink material particles with inertia coupled vibration in a heavy ink recycling apparatus (45), while descending fibers enters a cylindrical separator (6) through a material settling and conveying pipe (5); adjusting an air pressure in the cylindrical separator (6) through a disc fan collector (61) arranged on an upper part of the cylindrical separator (6); by centrifugal force in the cylindrical separator (6), discharging impurities or materials in the descending fibers which are lighter than the descending fibers through the disc fan collector (61) arranged on the upper part of the cylindrical separator (6); and settling the descending fibers which are heavier than said impurities or materials in the descending fibers into a lower fiber discharge port (62), wherein a whole process from said step 1 to step 5 is carried out in a dry environment, and thus resulting in fibers being obtained after step 5 with a higher purity.

Description

BRIEF DESCRIPTION OF THE DRAWINGS

[0032] FIG. 1 is a structural diagram of the whole device for separating ink molecules and coloring material molecules from fibers by means of magnetic force difference coupled vibration according to the present invention,

[0033] FIG. 2 is a structural diagram of the magnetic force difference coupled vibrator according to the present invention;

[0034] FIG. 3 is a test results of the qualities of the resulting fibers obtained according to the embodiments of the present invention;

[0035] FIG. 4 is a schematic diagram of several different magnetic separation apparatus for separating ink materials from fibers according to conventional methods illustrated in an embodiment of the present invention; and

[0036] FIG. 5 shows the test results of recycled paper products made of fibers obtained according to different separating methods to separate ink materials and fibers.

[0037] In the figures: 1. fiber crusher; 2. magnetic force difference coupled vibrator; 3. accelerating fan; 4. ballistic rebound sucker; 5. material settling and conveying pipe; 6. cylindrical separator; 11. fixed knife; 12. movable knife rotor; 13. conveying pipe; 21. magnetic conductive iron sheet; 22. fiber inlet; 23. continuous iron bars and coils; 24. homopolar near-frequency magnetic conductive iron sheet; 25. magnetic shielding structure; 26. vibration domain; 27. temperature controller; 28. thermostat; 29. fiber outlet; 41. accelerating tube; 42. printing ink rebound ballistic path baffle; 43. ballistic rebound plate; 44. sucker fan; 45. heavy ink recycling apparatus; 46. fiber resistance plate; 47. outer shell; 61. disc fan collector; 62. fiber discharge port; 63. collector.

DETAILED DESCRIPTION OF THE INVENTION

[0038] The present invention will be described in detail with reference to the following embodiments and FIGS. 1-5, wherein the described embodiments are intended to illustrate only some, but not all, embodiments of the present invention. These embodiments are intended to illustrate the present invention, but not to limit the scope of the present invention.

[0039] In the test results, the fibers are made into sheets using a sheet former, the measurement is carried out using a whiteness tester and a chromatograph analyzer, and the deinking effect is determined using the ratio of the printing ink amount before and after magnetic separation. The test results are shown in FIGS. 3, 4 and 5.

Embodiment 1

[0040] Referring to FIGS. 1 and 2, provided is a device for separating printing inks and fibers by dry-process magnetic force difference coupled vibration, comprising a fiber crusher 1, a magnetic force difference coupled vibrator 2, an accelerating fan 3, a ballistic rebound sucker 4, a material settling and conveying pipe 5, and a cylindrical separator 6 which are sequentially connected through pipelines, wherein a magnetic conductive iron sheet 21, a homopolar near-frequency magnetic conductive iron sheet 24, and a magnetic shielding structure 25 which are sequentially connected through continuous iron bars and coils 23 are arranged in a center of a shell of the magnetic force difference coupled vibrator 2 from a fiber inlet 22 to a fiber outlet 29 of the shell, a vibration domain 26 is formed in an empty cavity in the shell of the magnetic force difference coupled vibrator 2, temperature controllers 27 and thermostats 28 are arranged on an outer side of the shell, a middle part of the ballistic rebound sucker 4 is connected to the accelerating fan 3 through an accelerating tube 41, printing ink rebound ballistic path baffles 42 and ballistic rebound plates 43 are arranged in sequence from a middle part of a shell of the ballistic rebound sucker 4 towards an upper part of the shell of the ballistic rebound sucker 4, a heavy ink recycling apparatus 45 communicates with an interior of the shell of the ballistic rebound sucker 4 through a sucker fan 44 disposed on the upper part of the shell of the ballistic rebound sucker 4, a fiber resistance plate 46 is downwardly arranged from the middle part of the shell of the ballistic rebound sucker 4, the cylindrical separator 6 communicates with the interior of the shell of the ballistic rebound sucker 4 through the material settling and conveying pipe 5, a disc fan collector 61 is arranged on an upper part of a shell of the cylindrical separator 6, a fiber discharge port 62 is formed on a lower part of the shell of the cylindrical separator 6, and the fiber discharge port 62 communicates with a collector 63.

[0041] In the embodiment, the fiber crusher 1 is a disc mill crusher having a fixed knife and a movable knife rotor inside, and uniform dry fibers and extremely fine ink material particles of the paper are obtained by beating effect through mutual rotation between the fixed knife 11 and the movable knife rotor 12 in the disc mill crusher.

[0042] In the embodiment, three printing ink rebound ballistic path baffles 42 are arranged in the ballistic rebound sucker 4, one or more of the printing ink rebound ballistic path baffles 42 block an air flow from advancing linearly and from moving parabolically, and as a flowing direction of the air flow carrying the ink material particles and fibers turns rapidly upon impact with one or more of the printing ink rebound ballistic path baffles 42, the ink material particles are allowed to be diverted to the ballistic rebound plates 43 along ballistic trajectories thereof.

[0043] In the embodiment, an upper part of the ballistic rebound sucker 4 is provided with three ballistic rebound plates 43, and the ballistic rebound plates 43 are designed according to a calculable motion trajectories of the ink material particles, such that flow directions of the ink material particles are rapidly changed due to resistance imposed by conical covers of the ballistic rebound plates 43, and the ink material particles are sucked into the heavy ink recycling apparatus 45 through the sucker fan 44 after rebounding along their rebound ballistic paths.

[0044] According to practical implementation of the embodiment, 200 g of laser-printed A4 paper is put into the fiber crusher 1, paper fibers of the paper are beaten through mutual rotation of the fixed knife 11 and the movable knife rotor 12 to obtain uniform dry fibers and extremely fine ink material particles, and frictional forces are imposed on the paper fibers during the process. Due to said frictional forces, the fibers and the ink material particles will generate a certain temperature W (read by a temperature sensor), wherein the temperature is below an ignition point of the fibers, but sufficient to allow preliminary break-down and loosening of the ink material particles. The accelerating fan 3 is used for feeding a mixture with a certain temperature W1 containing the dry fibers and the extremely fine ink material particles into the magnetic force difference coupled vibrator 2 through a conveying pipe 13. The magnetic conductive iron sheet 21 of the magnetic force difference coupled vibrator 2 generate a magnetic induction density with K quantity (magnetic density is controlled to be 100 mT-200 mT), and the magnetic fields are maintained by the continuous iron bars and coils 23. When weak magnetic mixture is treated with a magnetic force, a temperature of a treated object is increased, so that a viscosity of the treated object can be reduced, meanwhile, a temperature of the magnetic force difference coupled vibrator 2 is maintained by the temperature controllers 27 and the thermostats 28. The ink material particles in the mixture passing through the vibration domain 26-1 is affected by magnetic induction to generate normal mode vibration Z1, the magnetic conductive iron sheet 21 and the continuous iron bars and coils 23 at a front part of the magnetic force difference coupled vibrator 2 between the magnetic conductive iron sheet 21 and the homopolar near-frequency magnetic conductive iron sheet 24 are subject to a homopolar magnetic field L1, the homopolar near-frequency magnetic conductive iron sheet 24 and the continuous iron bars and coils 23 at a rear part of the magnetic force difference coupled vibrator 2 between the homopolar near-frequency magnetic conductive iron sheet 24 and the magnetic shielding structure 25 are subject to another homopolar magnetic field L2, L1 and L2 are homopolar near-frequency magnetic fields, when the ink material particles pass through the two magnetic fields with near frequencies, the ink material particles will receive perturbation due to the different normal mode vibration generated in the two magnetic fields, and thus subject to coupled vibration. At this moment, in the mixture of fibers and the ink material particles which have already been broken down and loosened, the spectral band of the ink material particles will be divided into two parts, or the spectral band of the ink material particles is divided into two parts due to their slitting with the fibers. The ink material particles are subject to coupled vibration due to normal mode vibration in the vibration domain, while the fibers continue to enter a next area according to the flowing path of the air flow. The magnetic shielding structure 25 magnetically shields the previous magnetic conductive iron sheet 21 and the homopolar near-frequency magnetic conductive iron sheet 24, such that the ink material particles are no longer subject to perturbation by different normal mode vibration in the two magnetic fields; the acceleration tube 41 is arranged in the middle part of the ballistic rebound sucker 4, and the ink material particles still vibrating in weak coupled vibration due to inertia and the fibers enter the ballistic rebound sucker 4 through the accelerating tube 41; the ink material particles accelerate forwards with inertia coupled vibration, while the fibers only accelerate to move parabolically under the action of gravity and the accelerated air flow created by the accelerating tube 41, and since the ink material particles are lighter than the fibers, the ink material particles and the fibers will be divided following perturbation and mutual impact and move in different paths, and by means of the sucker fan 44 and the printing ink rebound ballistic path baffles 42, the ink material particles accelerate forwards in a microwave form, with a frequency similar to the vibration frequency of the magnetic field L1. Three printing ink rebound ballistic path baffles 42 are used for blocking the air flow from advancing linearly and from moving parabolically, wherein when a flowing direction of the air flow carrying the ink material particles and fibers turns rapidly upon impact with the printing ink rebound ballistic path baffles 42, fibers insufficiently driven to turn with the air flow will mostly descend in a spiral gravity under inertial force, while ink material particles lighter than the fibers and accelerated forwards with inertia coupled vibration will ascend together with a slight amount of fibers due to the ballistic rebound plates 43 and the suction force by the sucker fan 44 arranged on the upper part of the ballistic rebound sucker 4, while ink material particles which are lighter and not ascended as the ink particles described above and also remaining fibers are subjected to downward spiral sedimentation movement along the fiber resistance plate 46; further, flow directions of the ink material particles with inertia coupled vibration and the slight amount of fibers ascending to the upper part of the ballistic rebound sucker 4 are rapidly changed due to resistance of the conical covers of the ballistic rebound plates 43, and simultaneously, due to an increase in cross section of a flow of the ascending ink material particles with inertia coupled vibration mixed with the slight amount of fibers, a cross sectional flow rate of the flow of the ascending ink material particles with inertia coupled vibration mixed with the slight amount of fibers is reduced sharply, and so the slight amount of fibers are separated from the ink material particles with inertia coupled vibration under the action of gravity and drop onto the ballistic rebound plates 43 or the fiber resistance plate 46, allowing the ink material particles with inertia coupled vibration to continue to ascend; by means of the three ballistic rebound plates 43, the fibers and the ink material particles with inertia coupled vibration are preliminarily separated in the ballistic rebound sucker 4, and the ink material particles with inertia coupled vibration also enter the heavy ink recycling apparatus 45, and the fiber resistance plate 46 is arranged on a lower part of the ballistic rebound sucker 4, and the fiber resistance plate 46 enables the fibers to move parabolically and then to descend and spirally move to enter the material settling and conveying pipe 5; the descending fibers enter the cylindrical separator 6 through the material settling and conveying pipe 5, an air pressure in the cylindrical separator 6 is adjusted through the disc fan collector 61 arranged on the upper part of the cylindrical separator 6; by means of a centrifugal force, even lighter impurities or remaining ink material particles in the descending fibers are discharged and collected through the disc fan collector 61 arranged on the upper part of the cylindrical separator 6, while the descending fibers which are heavier than said impurities and the remaining ink material particles are settle and enter into the fiber discharge port 62 formed on the lower part of the cylindrical separator 6 and then being collected by the collector 63, and thus the fibers A-E with a higher purity are obtained.

Embodiment 2

[0045] Referring to FIGS. 1 and 2, provided is a device for separating printing inks and fibers by dry-process magnetic force difference coupled vibration, comprising a fiber crusher 1, a magnetic force difference coupled vibrator 2, an accelerating fan 3, a ballistic rebound sucker 4, a material settling and conveying pipe 5, and a cylindrical separator 6 which are sequentially connected through pipelines, wherein a magnetic conductive iron sheet 21, a homopolar near-frequency magnetic conductive iron sheet 24, and a magnetic shielding structure 25 which are sequentially connected through continuous iron bars and coils 23 are arranged in a center of a shell of the magnetic force difference coupled vibrator 2 from a fiber inlet 22 to a fiber outlet 29 of the shell, a vibration domain 26 is formed in an empty cavity in the shell of the magnetic force difference coupled vibrator 2, temperature controllers 27 and thermostats 28 are arranged on an outer side of the shell, a middle part of the ballistic rebound sucker 4 is connected to the accelerating fan 3 through an accelerating tube 41, printing ink rebound ballistic path baffles 42 and ballistic rebound plates 43 are arranged in sequence from a middle part of a shell of the ballistic rebound sucker 4 towards an upper part of the shell of the ballistic rebound sucker 4, a heavy ink recycling apparatus 45 communicates with an interior of the shell of the ballistic rebound sucker 4 through a sucker fan 44 disposed on the upper part of the shell of the ballistic rebound sucker 4, a fiber resistance plate 46 is downwardly arranged from the middle part of the shell of the ballistic rebound sucker 4, the cylindrical separator 6 communicates with the interior of the shell of the ballistic rebound sucker 4 through the material settling and conveying pipe 5, a disc fan collector 61 is arranged on an upper part of a shell of the cylindrical separator 6, a fiber discharge port 62 is formed on a lower part of the shell of the cylindrical separator 6, and the fiber discharge port 62 communicates with a collector 63.

[0046] In the embodiment, the fiber crusher 1 is a disc mill crusher having a fixed knife and a movable knife rotor inside, and uniform dry fibers and extremely fine ink material particles of the paper are obtained by beating effect through mutual rotation between the fixed knife 11 and the movable knife rotor 12 in the disc mill crusher.

[0047] In the embodiment, three printing ink rebound ballistic path baffles 42 are arranged in the ballistic rebound sucker 4, one or more of the printing ink rebound ballistic path baffles 42 block an air flow from advancing linearly and from moving parabolically, and as a flowing direction of the air flow carrying the ink material particles and fibers turns rapidly upon impact with one or more of the printing ink rebound ballistic path baffles 42, the ink material particles are allowed to be diverted to the ballistic rebound plates 43 along ballistic trajectories thereof.

[0048] In the embodiment, an upper part of the ballistic rebound sucker 4 is provided with three ballistic rebound plates 43, and the ballistic rebound plates 43 are designed according to a calculable motion trajectories of the ink material particles, such that flow directions of the ink material particles are rapidly changed due to resistance imposed by conical covers of the ballistic rebound plates 43, and the ink material particles are sucked into the heavy ink recycling apparatus 45 through the sucker fan 44 after rebounding along their rebound ballistic paths.

[0049] According to practical implementation of the embodiment, 200 g of waste A4 paper drawn and written with ball pens and sign pens is put into the fiber crusher 1, paper fibers of the paper are beaten through mutual rotation of the fixed knife 11 and the movable knife rotor 12 to obtain uniform dry fibers and extremely fine ink material particles, and frictional forces are imposed on the paper fibers during the process. Due to said frictional forces, the fibers and the ink material particles will generate a certain temperature W (read by a temperature sensor), wherein the temperature is below an ignition point of the fibers, but sufficient to allow preliminary break-down and loosening of the ink material particles. The accelerating fan 3 is used for feeding a mixture with a certain temperature W1 containing the dry fibers and the extremely fine ink material particles into the magnetic force difference coupled vibrator 2 through a conveying pipe 13. The magnetic conductive iron sheet 21 of the magnetic force difference coupled vibrator 2 generate a magnetic induction density with K quantity (magnetic density is controlled to be 100 mT-200 mT), and the magnetic fields are maintained by the continuous iron bars and coils 23. When weak magnetic mixture is treated with a magnetic force, a temperature of a treated object is increased, so that a viscosity of the treated object can be reduced, meanwhile, a temperature of the magnetic force difference coupled vibrator 2 is maintained by the temperature controllers 27 and the thermostats 28. The ink material particles in the mixture passing through the vibration domain 26-1 is affected by magnetic induction to generate normal mode vibration Z2, the magnetic conductive iron sheet 21 and the continuous iron bars and coils 23 at a front part of the magnetic force difference coupled vibrator 2 between the magnetic conductive iron sheet 21 and the homopolar near-frequency magnetic conductive iron sheet 24 are subject to a homopolar magnetic field L1, the homopolar near-frequency magnetic conductive iron sheet 24 and the continuous iron bars and coils 23 at a rear part of the magnetic force difference coupled vibrator 2 between the homopolar near-frequency magnetic conductive iron sheet 24 and the magnetic shielding structure 25 are subject to another homopolar magnetic field L2, L1 and L2 are homopolar near-frequency magnetic fields, when the ink material particles pass through the two magnetic fields with near frequencies, the ink material particles will receive perturbation due to the different normal mode vibration generated in the two magnetic fields, and thus subject to coupled vibration. At this moment, in the mixture of fibers and the ink material particles which have already been broken down and loosened, the spectral band of the ink material particles will be divided into two parts, or the spectral band of the ink material particles is divided into two parts due to their slitting with the fibers. The ink material particles are subject to coupled vibration due to normal mode vibration in the vibration domain, while the fibers continue to enter a next area according to the flowing path of the air flow. The magnetic shielding structure 25 magnetically shields the previous magnetic conductive iron sheet 21 and the homopolar near-frequency magnetic conductive iron sheet 24, such that the ink material particles are no longer subject to perturbation by different normal mode vibration in the two magnetic fields; the acceleration tube 41 is arranged in the middle part of the ballistic rebound sucker 4, and the ink material particles still vibrating in weak coupled vibration due to inertia and the fibers enter the ballistic rebound sucker 4 through the accelerating tube 41; the ink material particles accelerate forwards with inertia coupled vibration, while the fibers only accelerate to move parabolically under the action of gravity and the accelerated air flow created by the accelerating tube 41, and since the ink material particles are lighter than the fibers, the ink material particles and the fibers will be divided following perturbation and mutual impact and move in different paths, and by means of the sucker fan 44 and the printing ink rebound ballistic path baffles 42, the ink material particles accelerate forwards in a microwave form, with a frequency similar to the vibration frequency of the magnetic field L1. Three printing ink rebound ballistic path baffles 42 are used for blocking the air flow from advancing linearly and from moving parabolically, wherein when a flowing direction of the air flow carrying the ink material particles and fibers turns rapidly upon impact with the printing ink rebound ballistic path baffles 42, fibers insufficiently driven to turn with the air flow will mostly descend in a spiral gravity under inertial force, while ink material particles lighter than the fibers and accelerated forwards with inertia coupled vibration will ascend together with a slight amount of fibers due to the ballistic rebound plates 43 and the suction force by the sucker fan 44 arranged on the upper part of the ballistic rebound sucker 4, while ink particles which are lighter and not ascended as the ink particles described above and also remaining fibers are subjected to downward spiral sedimentation movement along the fiber resistance plate 46; further, flow directions of the ink material particles with inertia coupled vibration and the slight amount of fibers ascending to the upper part of the ballistic rebound sucker 4 are rapidly changed due to resistance of the conical covers of the ballistic rebound plates 43, and simultaneously, due to an increase in cross section of a flow of the ascending ink material particles with inertia coupled vibration mixed with the slight amount of fibers, a cross sectional flow rate of the flow of the ascending ink material particles with inertia coupled vibration mixed with the slight amount of fibers is reduced sharply, and so the slight amount of fibers are separated from the ink material particles with inertia coupled vibration under the action of gravity and drop onto the ballistic rebound plates 43 or the fiber resistance plate 46, allowing the ink material particles with inertia coupled vibration to continue to ascend; by means of the three ballistic rebound plates 43, the fibers and the ink material particles with inertia coupled vibration are preliminarily separated in the ballistic rebound sucker 4, and the ink material particles with inertia coupled vibration also enter the heavy ink recycling apparatus 45, and the fiber resistance plate 46 is arranged on a lower part of the ballistic rebound sucker 4, and the fiber resistance plate 46 enables the fibers to move parabolically and then to descend and spirally move to enter the material settling and conveying pipe 5; the descending fibers enter the cylindrical separator 6 through the material settling and conveying pipe 5, an air pressure in the cylindrical separator 6 is adjusted through the disc fan collector 61 arranged on the upper part of the cylindrical separator 6; by means of a centrifugal force, even lighter impurities or remaining ink material particles in the descending fibers are discharged and collected through the disc fan collector 61 arranged on the upper part of the cylindrical separator 6, while the descending fibers which are heavier than said impurities and the remaining ink material particles are settle and enter into the fiber discharge port 62 formed on the lower part of the cylindrical separator 6 and then being collected by the collector 63, and thus the fibers A-E with a higher purity are obtained.

Embodiment 3

[0050] Referring to FIGS. 1 and 2, provided is a device for separating printing inks and fibers by dry-process magnetic force difference coupled vibration, comprising a fiber crusher 1, a magnetic force difference coupled vibrator 2, an accelerating fan 3, a ballistic rebound sucker 4, a material settling and conveying pipe 5, and a cylindrical separator 6 which are sequentially connected through pipelines, wherein a magnetic conductive iron sheet 21, a homopolar near-frequency magnetic conductive iron sheet 24, and a magnetic shielding structure 25 which are sequentially connected through continuous iron bars and coils 23 are arranged in a center of a shell of the magnetic force difference coupled vibrator 2 from a fiber inlet 22 to a fiber outlet 29 of the shell, a vibration domain 26 is formed in an empty cavity in the shell of the magnetic force difference coupled vibrator 2, temperature controllers 27 and thermostats 28 are arranged on an outer side of the shell, a middle part of the ballistic rebound sucker 4 is connected to the accelerating fan 3 through an accelerating tube 41, printing ink rebound ballistic path baffles 42 and ballistic rebound plates 43 are arranged in sequence from a middle part of a shell of the ballistic rebound sucker 4 towards an upper part of the shell of the ballistic rebound sucker 4, a heavy ink recycling apparatus 45 communicates with an interior of the shell of the ballistic rebound sucker 4 through a sucker fan 44 disposed on the upper part of the shell of the ballistic rebound sucker 4, a fiber resistance plate 46 is downwardly arranged from the middle part of the shell of the ballistic rebound sucker 4, the cylindrical separator 6 communicates with the interior of the shell of the ballistic rebound sucker 4 through the material settling and conveying pipe 5, a disc fan collector 61 is arranged on an upper part of a shell of the cylindrical separator 6, a fiber discharge port 62 is formed on a lower part of the shell of the cylindrical separator 6, and the fiber discharge port 62 communicates with a collector 63.

[0051] In the embodiment, the fiber crusher 1 is a disc mill crusher having a fixed knife and a movable knife rotor inside, and uniform dry fibers and extremely fine ink material particles of the paper are obtained by beating effect through mutual rotation between the fixed knife 11 and the movable knife rotor 12 in the disc mill crusher.

[0052] In the embodiment, three printing ink rebound ballistic path baffles 42 are arranged in the ballistic rebound sucker 4, one or more of the printing ink rebound ballistic path baffles 42 block an air flow from advancing linearly and from moving parabolically, and as a flowing direction of the air flow carrying the ink material particles and fibers turns rapidly upon impact with one or more of the printing ink rebound ballistic path baffles 42, the ink material particles are allowed to be diverted to the ballistic rebound plates 43 along ballistic trajectories thereof.

[0053] In the embodiment, an upper part of the ballistic rebound sucker 4 is provided with three ballistic rebound plates 43, and the ballistic rebound plates 43 are designed according to a calculable motion trajectories of the ink material particles, such that flow directions of the ink material particles are rapidly changed due to resistance imposed by conical covers of the ballistic rebound plates 43, and the ink material particles are sucked into the heavy ink recycling apparatus 45 through the sucker fan 44 after rebounding along their rebound ballistic paths.

[0054] According to practical implementation of the embodiment, 200 g of ink printed white cardboard and 200 g of waste A4 paper drawn and written with ball pens and sign pens are put into the fiber crusher 1, paper fibers of the paper are beaten through mutual rotation of the fixed knife 11 and the movable knife rotor 12 to obtain uniform dry fibers and extremely fine ink material particles, and frictional forces are imposed on the paper fibers during the process. Due to said frictional forces, the fibers and the ink material particles will generate a certain temperature W (read by a temperature sensor), wherein the temperature is below an ignition point of the fibers, but sufficient to allow preliminary break-down and loosening of the ink material particles. The accelerating fan 3 is used for feeding a mixture with a certain temperature W1 containing the dry fibers and the extremely fine ink material particles into the magnetic force difference coupled vibrator 2 through a conveying pipe 13. The magnetic conductive iron sheet 21 of the magnetic force difference coupled vibrator 2 generates a magnetic induction density with K quantity (magnetic density is controlled to be 100 mT-200 mT), and the magnetic fields are maintained by the continuous iron bars and coils 23. When weak magnetic mixture is treated with a magnetic force, a temperature of a treated object is increased, so that a viscosity of the treated object can be reduced, meanwhile, a temperature of the magnetic force difference coupled vibrator 2 is maintained by the temperature controllers 27 and the thermostats 28. The ink material particles in the mixture passing through the vibration domain 26-1 is affected by magnetic induction to generate normal mode vibration Z3, the magnetic conductive iron sheet 21 and the continuous iron bars and coils 23 at a front part of the magnetic force difference coupled vibrator 2 between the magnetic conductive iron sheet 21 and the homopolar near-frequency magnetic conductive iron sheet 24 are subject to a homopolar magnetic field L1, the homopolar near-frequency magnetic conductive iron sheet 24 and the continuous iron bars and coils 23 at a rear part of the magnetic force difference coupled vibrator 2 between the homopolar near-frequency magnetic conductive iron sheet 24 and the magnetic shielding structure 25 are subject to another homopolar magnetic field L2, L1 and L2 are homopolar near-frequency magnetic fields, when the ink material particles pass through the two magnetic fields with near frequencies, the ink material particles will receive perturbation due to the different normal mode vibration generated in the two magnetic fields, and thus subject to coupled vibration. At this moment, in the mixture of fibers and the ink material particles which have already been broken down and loosened, the spectral band of the ink material particles will be divided into two parts, or the spectral band of the ink material particles is divided into two parts due to their slitting with the fibers. The ink material particles are subject to coupled vibration due to normal mode vibration in the vibration domain, while the fibers continue to enter a next area according to the flowing path of the air flow. The magnetic shielding structure 25 magnetically shields the previous magnetic conductive iron sheet 21 and the homopolar near-frequency magnetic conductive iron sheet 24, such that the ink material particles are no longer subject to perturbation by different normal mode vibration in the two magnetic fields; the acceleration tube 41 is arranged in the middle part of the ballistic rebound sucker 4, and the ink material particles still vibrating in weak coupled vibration due to inertia and the fibers enter the ballistic rebound sucker 4 through the accelerating tube 41; the ink material particles accelerate forwards with inertia coupled vibration, while the fibers only accelerate to move parabolically under the action of gravity and the accelerated air flow created by the accelerating tube 41, and since the ink material particles are lighter than the fibers, the ink material particles and the fibers will be divided following perturbation and mutual impact and move in different paths, and by means of the sucker fan 44 and the printing ink rebound ballistic path baffles 42, the ink material particles accelerate forwards in a microwave form, with a frequency similar to the vibration frequency of the magnetic field L1. One or more printing ink rebound ballistic path baffles 42 are used for blocking the air flow from advancing linearly and from moving parabolically, wherein when a flowing direction of the air flow carrying the ink material particles and fibers turns rapidly upon impact with the printing ink rebound ballistic path baffles 42, fibers insufficiently driven to turn with the air flow will mostly descend in a spiral gravity under inertial force, while ink material particles lighter than the fibers and accelerated forwards with inertia coupled vibration will ascend together with a slight amount of fibers due to the ballistic rebound plates 43 and the suction force by the sucker fan 44 arranged on the upper part of the ballistic rebound sucker 4, while ink particles which are lighter and not ascended as the ink particles described above and also remaining fibers are subjected to downward spiral sedimentation movement along the fiber resistance plate 46; further, flow directions of the ink material particles with inertia coupled vibration and the slight amount of fibers ascending to the upper part of the ballistic rebound sucker 4 are rapidly changed due to resistance of the conical covers of the ballistic rebound plates 43, and simultaneously, due to an increase in cross section of a flow of the ascending ink material particles with inertia coupled vibration mixed with the slight amount of fibers, a cross sectional flow rate of the flow of the ascending ink material particles with inertia coupled vibration mixed with the slight amount of fibers is reduced sharply, and so the slight amount of fibers are separated from the ink material particles with inertia coupled vibration under the action of gravity and drop onto the ballistic rebound plates 43 or the fiber resistance plate 46, allowing the ink material particles with inertia coupled vibration to continue to ascend; by means of the one or more ballistic rebound plates 43, the fibers and the ink material particles with inertia coupled vibration are preliminarily separated in the ballistic rebound sucker 4, and the ink material particles with inertia coupled vibration also enter the heavy ink recycling apparatus 45, and the fiber resistance plate 46 is arranged on a lower part of the ballistic rebound sucker 4, and the fiber resistance plate 46 enables the fibers to move parabolically and then to descend and spirally move to enter the material settling and conveying pipe 5; the descending fibers enter the cylindrical separator 6 through the material settling and conveying pipe 5, an air pressure in the cylindrical separator 6 is adjusted through the disc fan collector 61 arranged on the upper part of the cylindrical separator 6; by means of a centrifugal force, even lighter impurities or remaining ink material particles in the descending fibers are discharged and collected through the disc fan collector 61 arranged on the upper part of the cylindrical separator 6, while the descending fibers which are heavier than said impurities and the remaining ink material particles are settle and enter into the fiber discharge port 62 formed on the lower part of the cylindrical separator 6 and then being collected by the collector 63, and thus the fibers A-E with a higher purity are obtained.

[0055] The resulting fibers obtained in the embodiments are made into sheets, and then tested by a whiteness tester and a chromatograph analyzer, and the test results are shown in FIG. 3.

Embodiment 4

[0056] Ink materials and fibers in paper pulp are separated by using conventional magnetic ink adsorption methods. In a first conventional method, the paper pulp containing the ink materials passes through a conveyor belt where a magnetic apparatus is provided transversely with respect to the conveyor belt or provided inside the conveyor belt, and so the ink materials are adsorbed onto the conveyor belt when the paper pulp passes through the conveyor belt, and a scraper or a demagnetizer is arranged at the downstream of the flow of the paper pulp, so that the ink materials are separated from the paper pulp; in a second conventional method, the paper pulp containing the ink materials flows in the T-shaped pipeline, magnetic stirring rods are arranged at the T-shaped portion of the T-shaped pipeline, and the ink materials are adsorbed onto the stirring rods when the paper pulp containing the ink materials passes through the magnetic stirring rods, so that the ink materials are separated from the paper pulp; in a third conventional method, the paper pulp containing the ink materials flows in a water tank, a magnetic roller is arranged on the water tank and the paper pulp containing the ink materials flows below the magnetic roller, and a scraper or a demagnetizer is arranged at one point of the magnetic roller corresponding to a point where the paper pulp containing the ink materials flows away from the magnetic roller to remove the ink materials adsorbed on the magnetic roller above the flowing paper pulp, so that the ink materials are separated from the paper pulp; in a fourth conventional method, the paper pulp containing the ink materials passes through a conical barrel in which centrifugal force is applied, and a magnetic force generating apparatus is arranged on the outer wall of the conical barrel to adsorb the ink materials in the conical barrel onto the wall of the conical barrel; in a fifth conventional method, magnetite particles (or silicon iron, artificial ferrite particles or magnetic fluid), sodium hydroxide and sodium silicate are added into the paper pulp containing the ink materials, and the mixture is stirred, and after flotation, the ink materials are separated from the fibers. The above five conventional methods are briefly illustrated in FIG. 4. The resulting fibers obtained according to Embodiments 1-4 are made into paper and subjected to a comparative test by using a whiteness tester and a chromatograph analyzer, and the comparative results are shown in FIG. 5.

[0057] As can be seen from FIG. 5, compared with the conventional waste paper recycling devices, the paper obtained by the present invention has higher whiteness, lower concentration of residual ink, higher yield rate, higher production efficiency and shorter paper production time. The present invention occupies less space and has lower manufacturing cost, and paper can be produced directly using the fibers obtained according to a method and device for separating ink molecules and coloring material molecules from fibers by magnetic force difference coupled vibration.

[0058] Although the present invention has been described in detail above with reference to the detailed description part, it will be apparent to those skilled in the art that modifications or improvements can be made based on the present invention. Accordingly, all such modifications or improvements made without departing from the spirit of the present invention shall fall within the protection scope of the present invention.