CONTINUOUS FEEDING PROCESS AND DEVICE FOR WASTE FLEXIBLE POLYMER MATERIAL

Abstract

A continuous feeding process and device for waste flexible polymer material; wherein the process continuously feeds waste flexible polymer material into a subsequent pyrolysis apparatus following compression, cutting and dispersion; the waste flexible polymer material is pre-treated during compression, cutting and dispersion to achieve continuous sealing feeding, while pyrolysis oil gas preheats and self-lubricates the device; the device used includes a feeding apparatus, a material dispersion apparatus and a screw feeder; the material is compressed, cut and dispersed in the feeding apparatus and the material dispersion apparatus, and then falls into the screw feeder, being preheated and thermally sealed by the pyrolysis oil-gas in the screw feeder; by using such a process, waste flexible polymer material from various sources may be continuously fed for pyrolysis, fully using the temperature of an oil-gas generated in a pyrolysis machine for preheating and device lubrication.

Claims

1. A continuous feeding process for waste flexible polymer material, wherein: the waste flexible polymer material is continuously fed into a subsequent pyrolysis apparatus following compression, cutting and dispersion; the waste flexible polymer material is pre-treated during compression, cutting and dispersion to achieve continuous sealing feeding while a pyrolysis oil-gas is used for preheating and self-lubricating a device, and the specific steps are: continuously compress the waste flexible polymer material, and cut and disperse it after compression, during the dispersing process, the material is preheated by the oil-gas generated during pyrolysis, meanwhile the oil-gas is condensed, and a condensed oil fluid is utilized to carry out self-lubrication for a subsequent feeding device.

2. The continuous feeding process according to claim 1, wherein the said compression is divided into two compressions, the said cutting and dispersion is completed by a spiral cutting device or other cutting devices, and the subsequent feeding device is a screw feeder.

3. The continuous feeding process according to claim 1, wherein the said waste flexible polymer material is selected from waste plastics or waste tires.

4. The continuous feeding process according to claim 3, wherein the said waste flexible polymer material is selected from waste plastics.

5. The continuous feeding process according to claim 1, wherein the said two compressions are oblique compression and horizontal compression.

6. A continuous feeding device for waste flexible polymer material, comprising a feeding apparatus and a material dispersion apparatus, the feeding apparatus is composed of a feeding silo, an inclined silo and a cavity, the inclined silo and the cavity are both provided with feeding pistons, a discharge end of the cavity is connected with the material dispersion apparatus, the material dispersion apparatus includes a housing and a dispersion apparatus arranged in the housing, and the said dispersion apparatus is a spiral cutting device; the bottom of the said dispersion apparatus is connected with a screw feeder, and a discharge end of the said screw feeder is connected to a pyrolysis machine.

7. The continuous feeding device according to claim 6, wherein the said feeding apparatus is composed of the feeding silo, the inclined silo and the cavity, wherein the feeding silo is arranged on the inclined silo the said cavity is arranged at the bottom of the inclined silo the top of the inclined silo is provided with an inclined feeding piston, a horizontal feeding piston is arranged on the side of the cavity away from the discharge end, the section of the said cavity is circular, and the bottom of the inclined feeding piston is an arc-shaped depression matching with the section of the cavity.

8. The continuous feeding device according to claim 6, wherein the material dispersion apparatus comprises a housing, a side of the said housing is provided with a feed inlet matching with the discharge end of the cavity, and the top of the housing is provided with a sealing plate, an electric motor is arranged on the upper part of the sealing plate, a screw rod penetrating the sealing plate is arranged on the lower part of the electric motor, a spiral is arranged on the screw rod, the top of the spiral is edged, the screw rod and the spiral form a spiral cutting device, and the spiral cutting device corresponds to the position of the feed inlet.

9. The continuous feeding device according to claim 6, wherein a feed inlet end of the said screw feeder is connected to the lower part of the housing of the dispersion apparatus, and the discharge end is connected to the pyrolysis machine, the screw feeder is provided with continuous feeding spirals, and a drive motor is arranged outside the screw feeder.

Description

DESCRIPTION OF FIGURE

[0021] FIG. 1 is the outline diagram of the continuous feeding device for waste flexible polymer material of this invention;

[0022] FIG. 2 is the internal structure diagram of the continuous feeding device for waste flexible polymer material with the inclined silo removed of this invention;

[0023] FIG. 3 is the vertical view of the feeding device of this invention;

[0024] FIG. 4 is the side view of the feeding device of this invention;

[0025] Wherein, 1. the housing, 2. the sealing plate, 3. the electric motor, 4. the discharge end of the cavity, 5. the horizontal feeding piston, 6. the cavity, 7. the inclined silo, 8. the feeding silo, 9. horizontal feeding piston rod, 10. the screw rod, 11. the spiral, 12. the compressed flexible polymer material, 13. the waste flexible polymer material, 14. the inclined feeding piston rod, 15. the inclined feeding piston, 16. the oil-gas outlet, 17. the screw feeder, 18. the feeding spirals, and 19. the drive motor.

SPECIFIC EMBODIMENTS

Process Embodiment 1

[0026] A continuous feeding process for waste flexible polymer material. This process comprises that, the waste flexible polymer material is continuously fed into a subsequent pyrolysis apparatus following compression, cutting and dispersion. The waste flexible polymer material is pre-treated during compression, cutting and dispersion to achieve continuous sealing feeding while a pyrolysis oil-gas is used for preheating and self-lubricating the device, and the specific steps are:

[0027] Continuously compress the waste flexible polymer material, and cut and disperse it after compression. During the dispersing process, the material is preheated by the oil-gas generated during pyrolysis, meanwhile the oil-gas is condensed, and the condensed oil fluid is utilized to carry out self-lubrication for the subsequent feeding device;

[0028] The said compression is divided into two compressions, the said cutting and dispersion is completed by a spiral cutting device, and the subsequent feeding device is a screw feeder;

[0029] The said waste flexible polymer material is selected from waste plastics;

Process Embodiment 2

[0030] A continuous feeding process for waste flexible polymer material. This process comprises that, the waste flexible polymer material is continuously fed into a subsequent pyrolysis apparatus following compression, cutting and dispersion. The waste flexible polymer material is pre-treated during compression, cutting and dispersion to achieve continuous sealing feeding while a pyrolysis oil-gas is used for preheating and self-lubricating the device, and the specific steps are:

[0031] Continuously compress the waste flexible polymer material, and cut and disperse it after compression. During the dispersing process, the material is preheated by the oil-gas generated during pyrolysis, meanwhile the oil-gas is condensed, and the condensed oil fluid is utilized to carry out self-lubrication for the subsequent feeding device;

[0032] The said compression is divided into two compressions, the said cutting and dispersion is completed by a spiral cutting device or rotatable tool rest, and the subsequent feeding device is a screw feeder;

[0033] The said waste flexible polymer material is selected from waste tires;

Device Embodiment

[0034] A continuous feeding device for waste flexible polymer material. The device includes a feeding apparatus, a material dispersion apparatus and a screw feeder. The feeding apparatus is composed of a feeding silo 8, an inclined silo 7 and a cavity 6. The inclined silo 7 and the cavity 6 are both provided with feeding pistons. The discharge end 4 of the cavity 6 is connected with the material dispersion apparatus. The material dispersion apparatus includes a housing and a dispersion apparatus arranged in the housing, and the said dispersion apparatus is a spiral cutting device; The bottom of the said dispersion apparatus is connected with the screw feeder 17, and the discharge end of the said screw feeder 17 is connected to the pyrolysis machine;

[0035] The said feeding apparatus is composed of a feeding silo 8, an inclined silo 7 and a cavity 6, wherein the feeding silo 8 is arranged on the inclined silo 7, the said cavity 6 is arranged at the bottom of the inclined silo 7, the top of the inclined silo 7 is provided with an inclined feeding piston 15, a horizontal feeding piston 5 is arranged on the side of the cavity 6 away from the discharge end, the section of the said cavity 6 is circular, and the bottom of the inclined feeding piston 15 is an arc-shaped depression matching with the section of the cavity;

[0036] The discharge end 4 of the said cavity is connected with the material dispersion apparatus. The material dispersion apparatus comprises a housing 1, the side of the said housing 1 is provided with a feed inlet matching with the discharge end 4 of the cavity, and the top of the housing 1 is provided with a sealing plate 2, an electric motor 3 is arranged on the upper part of the sealing plate 2, a screw rod 10 penetrating the sealing plate 2 is arranged on the lower part of the electric motor 3, a spiral 11 is arranged on the screw rod 10, the top of the spiral 11 is edged, the screw rod 10 and the spiral 11 form a spiral cutting device, and the spiral cutting device corresponds to the position of the feed inlet, and an oil-gas outlet 16 is also arranged on the housing 1;

[0037] The feed inlet end of the said screw feeder 17 is connected to the lower part of the housing 1 of the dispersion apparatus, and the discharge end is connected to the pyrolysis machine. The screw feeder 17 is provided with continuous feeding spirals 18, and a drive motor 19 is arranged outside the screw feeder 17;

[0038] When it is used, the compressed waste flexible polymer material 12 shall be filled in the discharge end 4 of the cavity before starting up, so that the discharge end can be sealed, and meanwhile it is convenient for subsequent waste flexible polymer material 13 added to be compressed; if it is shut down after continuous operation, the compressed material may not be replenished any more, and the sealing is realized by accumulation of the compressed material at the discharge end of the cavity.