Feather oil absorbent boom structure

Abstract

A feather oil absorbent boom structure comprising an inner core and an outer ring winding outside the inner core; the inner core is a cloth bag, and the cloth bag is filled with feather oil absorbent material; the cloth bag is made of spunbonded-melt blown-spunbonded polyporpylene non-woven cloth; the outer ring is a plate-shaped oil absorbent felt formed through thermal fusion of feathers and bicomponent fibers of polypropylene/polyethylene having a low melting point; the weight ratio of the feathers to the bicomponent fibers is 70-85:15-30. The feather oil absorbent boom is capable of providing reliable buoyancy, and slowing down the reduction of the strength of the inner core. Further disclosed is a preparation method for the feather oil absorbent boom structure.

Claims

1. A feather oil absorbent boom structure; wherein the feather oil absorbent boom comprises: an inner core; and an outer ring surrounding an outside of the inner core; wherein the inner core is a cloth bag; an oil absorbent material is filled into the cloth bag; wherein the cloth bag is made of a nonwoven cloth which includes a layer of meltblown polypropylene nonwoven fabric located between two layers of spunbonded polypropylene nonwoven fabric; the nonwoven cloth has a surface density of 24 g/m.sup.2-50 g/m.sup.2 and hydrostatic pressure tolerance of 300 mmH.sub.2O; the outer ring is a plate-shaped oil absorbent felt formed through thermal fusion of feathers and bicomponent fibers of polypropylene and polyethylene having a low melting point; wherein a weight ratio of the feathers to the bicomponent fibers of polypropylene and polyethylene having a low melting point is 70-85: 15-30; wherein the oil absorbent felt has an average surface density of 150 g/m.sup.2-400 g/m.sup.2.

2. The feather oil absorbent boom structure as in claim 1, wherein the oil absorbent material is plate-shaped oil absorbent felt formed through thermal fusion of feathers and bicomponent fibers of polypropylene and polyethylene having a low melting point.

3. The feather oil absorbent boom structure as in claim 1, wherein the oil absorbent material is feather strands.

4. The feather oil absorbent boom structure as in claim 1, wherein a relationship between a radius of the cloth bag and sunk volume of the feather oil absorbent boom structure is expressed according to the following formula: $R_x=\sqrt{\frac{2^{}r+w-a\%2^{}r}{r}}$ wherein: R.sub.x refers to the radius of the cloth bag; w refers to weight (g) of a unit length (1 m) of the feather oil absorbent boom; refers to circumference ratio; R refers to a radius (m) of the oil absorbent boom; r refers to water density (g/m.sup.3); and a % refers to a required percentage of a volume of the feather oil absorbent boom structure sunk into water with respect to a total volume of the feather oil absorbent boom structure, when the oil absorbent felt of the outer ring is absorbed with water and is saturated.

5. The feather oil absorbent boom structure as in claim 4, wherein a density of the inner core is 10 kg/m.sup.3-40 kg/m.sup.3.

Description

BRIEF DESCRIPTION OF THE DRAWINGS

(1) FIG. 1 is a sectional view showing a structure of the oil absorbent boom of the present invention.

DETAILED DESCRIPTION OF THE INVENTION

(2) The present invention will be further described below with reference to some embodiments. An oil absorbent boom of the present invention comprises two parts, namely an inner core 2 and an outer ring 3 winding outside the inner core 2. The inner core 2 is a cloth bag, and the cloth bag is filled with feather oil absorbent material. The cloth bag is a spunbonded-meltblown-spunbonded polyprophlene (PP) nonwoven cloth. The nonwoven cloth has a surface density of 24 g/m.sup.2-50 g/m.sup.2 and hydrostatic pressure tolerance of 300 mmH.sub.2O. The outer ring 3 is a plate-shaped oil absorbent felt formed through thermal fusion of feathers and bicomponent fibers of polypropylene/polyethylene having a low melting point. The weight ratio of the feathers to the polypropylene/polyethylene fibers is 70-85:15-30. The plate-shaped oil absorbent felt has an average surface density of 150 g/m.sup.2-400 g/m.sup.2.

(3) Preferably, the feather oil absorbent material inside the cloth bag is plate-shaped or tube-shaped or block-shaped oil absorbent felt formed through thermal fusion of feathers and bicomponent fibers of polypropylene/polyethylene having a low melting point. Alternatively, the feather oil absorbent material can be regenerated fibers, cellulosic fibers or feather strands.

(4) Embodiment 1

(5) Production requirements: The feather oil absorbent boom has a diameter of 0.4 m. Weight (w) of the feather oil absorbent boom per meter is set as 1600 g. It is required that when feather oil absorbent material of the outer ring is absorbed with water and is saturated, the oil absorbent boom has 50% of its total volume sunk into the water, in other words, 50% of the oil absorbent boom is still floating above the water.

(6) Firstly, calculate according to the following formula:

(7) $R_x=\sqrt{\frac{2^{}r+w-a\%2^{}r}{r}}$

(8) wherein w=1600, R=0.2, a %=50% and r=10.sup.6

(9) Result of calculation: spunbonded-meltblown-spunbonded PP nonwoven cloth bag has a radius R.sub.x of 0.143 m. When the cloth bag is sewn and adhered by using ultrasonic in accordance with this radius, the nonwoven cloth bag has a surface density of 50 g/m.sup.2.

(10) Total volume (v) of a unit length (1 m) of the oil absorbent boom is (0.2).sup.21=0.1257(m.sup.3); volume(v.sub.1) of the inner core is (0.143).sup.21=0.0642(m.sup.3); volume (v.sub.2) of the outer ring is vv.sub.1=0.0615(m.sup.3); weight (w.sub.1) of oil absorbent material filled into the inner core is 16006421257=817(g/m), and based on this weight, the plate-shaped or tube-shaped or block-shaped oil absorbent felt formed through thermal fusion of feathers and bicomponent fibers of polypropylene/polyethylene having a low melting point or regenerated fibers or ceiba fibers or mixture of the above materials rolled in a tubular shape is filled into the spunbonded-meltblown-spunbonded PP nonwoven cloth bag, and then the bag opening is tied.

(11) Weight (w.sup.2) of oil absorbent material of the outer ring is ww.sub.1=783(g/m); cut and obtain the plate-shaped oil absorbent felt formed through thermal fusion of feathers and bicomponent fibers of polypropylene/polyethylene having a low melting point according to the weight (w.sub.2), whereas the surface density of the oil absorbent felt is 250 g/m.sup.2 and the oil absorbent felt is around 20 mm thick, and then wind and fix the oil absorbent felt outside the inner core. In the oil absorbent felt, weight ratio of feathers to polypropylene/polyethylene fibers is 85:15.

(12) Checking: weight of the oil absorbent material of the outer ring when absorbed with water and saturated is v.sub.2r.sub.H.sub.2.sub.O=61400(g/m), wherein r.sub.H.sub.2.sub.O is water density (110.sup.6 g/m.sup.3); the oil absorbent boom has its own weight being 1600(g/m); therefore the total weight is 63000(g/m). When the oil absorbent boom is fully sunk into water, the amount of water being displaced is vr.sub.H.sub.2.sub.O=125700(g/m). Therefore, the actual ratio of the oil absorbent material of the outer ring when absorbed with water and saturated to the oil absorbent boom being sunk into water is 63000125700%=50.1%. This actual ratio is basically the same as the initially desired ratio.

(13) Density of the inner core is 8170.0642=12725(g/m.sup.3). Density of the outer ring is 7830.0615=12731 (g/m.sup.3).

(14) Embodiment 2

(15) Production requirements: The feather oil absorbent boom has a diameter of 0.2 m. Weight (w) of the feather oil absorbent boom per meter is set as 1000 g. It is required that when feathers of the outer ring is absorbed with water and is saturated, the oil absorbent boom has 50% of its total volume sunk into the water.

(16) Firstly, calculate according to the following formula:

(17) $R_x=\sqrt{\frac{2^{}r+w-a\%2^{}r}{r}}$

(18) wherein w=1000, R=0.1, a % =50% and r=10.sup.6

(19) Result of calculation according to the above formula: spunbonded-meltblown-spunbonded PP nonwoven cloth bag has a radius R.sub.x of 0.073 m. When the cloth bag is sewn and adhered by using ultrasonic in accordance with this radius, the nonwoven cloth bag has a surface density of 25 g/m.sup.2.

(20) Total volume (v) of a unit length (1 m) of the oil absorbent boom is (0.1).sup.21=0.0314(m.sup.3); volume(v.sub.1) of the inner core is (0.073).sup.21=0.0167(m.sup.3); volume (v.sub.2) of the outer ring is v=v.sub.1=0.0147(m.sup.3); weight (w.sub.1) of oil absorbent material filled into the inner core is 1000167314=532(g/m), and based on this weight, the plate-shaped or tube-shaped or block-shaped oil absorbent felt formed through thermal fusion of feathers and bicomponent fibers of polypropylene/polyethylene having a low melting point or regenerated fibers or ceiba fibers or mixture of the above materials rolled in a tubular shape is filled into the spunbonded-meltblown-spunbonded PP nonwoven cloth bag, and then the bag opening is tied.

(21) Weight (w.sub.2) of oil absorbent material of the outer ring is ww.sub.1=468(g/m); cut and obtain the plate-shaped oil absorbent felt formed through thermal fusion of feathers and bicomponent fibers of polypropylene/polyethylene having a low melting point according to the weight (w.sub.2), whereas the surface density of the oil absorbent felt is 400 g/m.sup.2 and the oil absorbent felt is around 15 mm thick, and then wind and fix the oil absorbent felt outside the inner core. In the oil absorbent felt, weight ratio of feathers to polypropylene/polyethylene fibers is 70:30.

(22) Checking: weight of the oil absorbent material of the outer ring when absorbed with water and saturated is v.sub.2r.sub.H.sub.2.sub.O=16700(g/m); the oil absorbent boom has its own weight being 1000(g/m); therefore the total weight is 17700(g/m). When the oil absorbent boom is fully sunk into water, the amount of water being displaced is vr.sub.H.sub.2.sub.O=31400(g/m). Therefore, the actual ratio of the oil absorbent material of the outer ring when absorbed with water and saturated to the oil absorbent boom being sunk into water is 1670031400=53.2%. This actual ratio is basically the same as the initially desired ratio.

(23) Density of the inner core is 5320.0167=31856(g/m.sup.3). Density of the outer ring is 4680.0147=31836(g/m.sup.3).

(24) Embodiment 3

(25) Production requirements: The feather oil absorbent boom has a diameter of 0.4 m. Weight (w) of the feather oil absorbent boom per meter is set as 1800 g. It is required that when feathers of the outer ring is absorbed with water and is saturated, the oil absorbent boom has 40% of its total volume sunk into the water.

(26) Firstly, calculate according to the following formula:

(27) $R_x=\sqrt{\frac{2^{}r+w-a\%2^{}r}{r}}$

(28) wherein w=1800, R=0.2, a %=40% and r=10.sup.6

(29) Result of calculation according to the above formula: spunbonded-meltblown-spunbonded PP nonwoven cloth bag has a radius R.sub.x of 0.157 m. When the cloth bag is sewn and adhered by using ultrasonic in accordance with this radius, the nonwoven cloth bag has a surface density of 50 g/m.sup.2.

(30) Total volume (v) of a unit length (1 m) of the oil absorbent boom is (0.2).sup.21=0.1257(m.sup.3); volume(v.sub.1) of the inner core is (0.157).sup.21=0.0774(m.sup.3); volume (v.sub.2) of the outer ring is vv.sub.1=0.0483(m.sup.3); weight (w.sub.1) of oil absorbent material filled into the inner core is 18007741257=1108(g/m), and based on this weight, the plate-shaped or tube-shaped or block-shaped oil absorbent felt formed through thermal fusion of feathers and bicomponent fibers of polypropylene/polyethylene having a low melting point or regenerated fibers or ceiba fibers or mixture of the above materials rolled in a tubular shape is filled into the spunbonded-meltblown-spunbonded PP nonwoven cloth bag, and then the bag opening is tied.

(31) Weight (w.sub.2) of oil absorbent material of the outer ring is ww.sub.1=692(g/m); cut and obtain the plate-shaped oil absorbent felt formed through thermal fusion of feathers and bicomponent fibers of polypropylene/polyethylene having a low melting point according to the weight (w.sub.2), whereas the surface density of the oil absorbent felt is 200 g/m.sup.2 and the oil absorbent felt is around 15 mm thick, and then wind and fix the oil absorbent felt outside the inner core. In the oil absorbent felt, weight ratio of feathers to polypropylene/polyethylene fibers is 70:30.

(32) Checking: the actual ratio of the oil absorbent material of the outer ring when absorbed with water and saturated to the oil absorbent boom being sunk into water is 50100125700% =39.9%. This actual ratio is basically the same as the initially desired ratio.

(33) Density of the inner core is 14315(g/m.sup.3). Density of the outer ring is 14327(g/m.sup.3).

(34) Embodiment 4

(35) Production requirements: The feather oil absorbent boom has a diameter of 0.5 m. Weight (w) of the feather oil absorbent boom per meter is set as 2500 g. It is required that when feathers of the outer ring is absorbed with water and is saturated, the oil absorbent boom has 60% of its total volume sunk into the water.

(36) Firstly, calculate according to the following formula:

(37) $R_x=\sqrt{\frac{2^{}r+w-a\%2^{}r}{r}}$

(38) wherein w=1000, R=0.25, a %=60% and r=10.sup.6

(39) Result of calculation according to the above formula: spunbonded-meltblown-spunbonded PP nonwoven cloth bag has a radius R.sub.x of 0.161 m. When the cloth bag is sewn and adhered by using ultrasonic in accordance with this radius, the nonwoven cloth bag has a surface density of 50 g/m.sup.2.

(40) Total volume (v) of a unit length (1 m) of the oil absorbent boom is (0.25).sup.21=0.19625(m.sup.3); volume(v.sub.1) of the inner core is (0.161).sup.21=0.0814(m.sup.3); volume (v.sub.2) of the outer ring is vv.sub.1=0.11485(m.sup.3); weight (w.sub.1) of oil absorbent material filled into the inner core is 2500814019625=1037(g/m), and based on this weight, the plate-shaped or tube-shaped or block-shaped oil absorbent felt formed through thermal fusion of feathers and bicomponent fibers of polypropylene/polyethylene having a low melting point or regenerated fibers or ceiba fibers or mixture of the above materials rolled in a tubular shape is filled into the spunbonded-meltblown-spunbonded PP nonwoven cloth bag, and then the bag opening is tied.

(41) Weight (w.sub.2) of oil absorbent material of the outer ring is ww.sub.1=1463(g/m); cut and obtain the plate-shaped oil absorbent felt formed through thermal fusion of feathers and bicomponent fibers of polypropylene/polyethylene having a low melting point according to the weight (w.sub.2), whereas the surface density of the oil absorbent felt is 250 g/m.sup.2 and the oil absorbent felt is around 20 mm thick, and then wind and fix the oil absorbent felt outside the inner core. In the oil absorbent felt, weight ratio of feathers to polypropylene/polyethylene fibers is 70:30.

(42) Checking: The actual ratio of the oil absorbent material of the outer ring when absorbed with water and saturated to the oil absorbent boom being sunk into water is 117350196250% =59.8%. This actual ratio is basically the same as the initially desired ratio.

(43) Density of the inner core is 12739(g/m.sup.3) . Density of the outer ring is 12738(g/m.sup.3).

(44) Embodiment 5

(45) Production requirements: The feather oil absorbent boom has a diameter of 0.2 m. Weight (w) of the feather oil absorbent boom per meter is set as 1200 g. It is required that when feathers of the outer ring is absorbed with water and is saturated, the oil absorbent boom has 30% of its total volume sunk into the water.

(46) Firstly, calculate according to the following formula:

(47) $R_x=\sqrt{\frac{2^{}r+w-a\%2^{}r}{r}}$

(48) wherein w=1200, R=0.1, a % =30% and r=10.sup.6

(49) Result of calculation according to the above formula: spunbonded-meltblown-spunbonded PP nonwoven cloth bag has a radius R.sub.x of 0.086 m. When the cloth bag is sewn and adhered by using ultrasonic in accordance with this radius, the nonwoven cloth bag has a surface density of 25 g/m.sup.2.

(50) Total volume (v) of a unit length (1 m) of the oil absorbent boom is (0.1).sup.21=0.0314(m.sup.3); volume(v.sub.1) of the inner core is (0.086).sup.21=0.0232(m.sup.3); volume (v.sub.2) of the outer ring is vv.sub.1=0.0082(m.sup.3); weight (w.sub.1) of oil absorbent material filled into the inner core is 1200232314=886(g/m), and based on this weight, the plate-shaped or tube-shaped or block-shaped oil absorbent felt formed through thermal fusion of feathers and bicomponent fibers of polypropylene/polyethylene having a low melting point or regenerated fibers or ceiba fibers or mixture of the above materials rolled in a tubular shape is filled into the spunbonded-meltblown-spunbonded PP nonwoven cloth bag, and then the bag opening is tied.

(51) Weight (w.sub.2) of oil absorbent material of the outer ring is ww.sub.1=314(g/m); cut and obtain the plate-shaped oil absorbent felt formed through thermal fusion of feathers and bicomponent fibers of polypropylene/polyethylene having a low melting point according to the weight (w.sub.2), whereas the surface density of the oil absorbent felt is 160 g/m.sup.2 and the oil absorbent felt is around 8 mm thick, and then wind and fix the oil absorbent felt outside the inner core. In the oil absorbent felt, weight ratio of feathers to polypropylene/polyethylene fibers is 70:30.

(52) Checking: The actual ratio of the oil absorbent material of the outer ring when absorbed with water and saturated to the oil absorbent boom being sunk into water is 940031400%=29.9%. This actual ratio is basically the same as the initially desired ratio.

(53) Density of the inner core is 8860.0232=38189(g/m.sup.3). Density of the outer ring is 3140.0082=38292(g/m.sup.3).

(54) A person skilled in this field of art should understand that the embodiments described above are examples only. The embodiments are described so that the present invention can be better understood. The embodiments are not intended to limit the scope of protection of the present invention. Any changes and modification made in accordance with the spirit of the present invention should also fall within the scope of protection of the present invention.