KR20030050373A - Treating method and apparatus for recycling a waste bumper - Google Patents

Abstract

PURPOSE: Provided is a recycling method for waste bumpers which lets coating separated from a crushed material within a water bath so that it bars harmful solvents from being released outside, with improving working conditions. CONSTITUTION: The recycling method for the waste bumpers comprises the steps of: (i) letting the crushed bumper material supplied to a hopper(20) and pushed out by constant quantity; (ii) having the crushed material rotated by a drive tool including a coating treater to separate coating firstly; (iii) passing the crushed material through solvent and the water bath(10) to separate coating from the crushed material secondly; (iv) allowing the crushed material floated within the water bath to be induced in one direction; and (v) letting the crushed material washed at a washing space(80) at the end of the water bath.

Description

Processing method and apparatus for recycling a waste bumper

The present invention relates to a method of recycling a waste bumper, and a device thereof, and more particularly, to a pulverized bumper (plastic waste resin) and a painted skin (eg Coating films) to be separated and collected continuously so that they can be recycled.

The bumper of the car is made of resin (composite PP, XENOY) with excellent physical properties, and this resin is a highly recyclable resin, which is treated by recycling only the pure resin remaining after removing the coating film portion on the surface. Embodiments of devices and methods thereof are increasing.

With respect to the above, the Korean Patent No. 264830 (name: Recycling method of waste bumper for automobiles) was collected and pulverized to a diameter of about 20 mm, and the pulverized pulverized product was treated with a treatment agent at an appropriate ratio. After entering into the rotating cylinder, the rotating cylinder was rotated to peel off the coated film on the surface of the bumper, to wash the pulverized product with the peeled off coating film, and to put the washed pulverized product into the extruder and recycle the chips. .

In the above-mentioned method of recycling the bumper, the process of peeling the coated film with the stirring blade together with the treating agent (methylene chloride) in the rotating cylindrical body in the rotating cylindrical body is carried out by removing a predetermined amount of the grinding material in the rotating cylinder. In this case, the rotational operation was carried out in a state in which the rotating operation was carried out through the required time of about 60 minutes, and then the washing process was performed. However, the time for peeling the coating film was very long, which shortened the time for regeneration. There is no problem in that the peeling of the coating film is not completed completely, and because the treatment process of the peeled coating film is performed only by the washing operation, there is a problem that the overall effective regeneration time and the amount of the regeneration fall.

In order to solve the above problems, the present invention has been conducted to efficiently obtain a resin for efficient peeling and regeneration of the coating film from the pulverized bumper. As a result, efficient waste film separation of the bumper, separation of resin, and cleaning operations are continuously performed. It has been developed a method and apparatus that can be performed by, the present invention was completed based on this.

Accordingly, an object of the present invention is to provide a method for recycling a bumper, which is capable of easily separating and collecting a coating film and a pulverized product which is a pure resin through a continuous separation process in a state of crushing a waste bumper of an automobile. have.

Another object of the present invention is to provide an apparatus for recycling a bumper to which the method can be applied.

The bumper recycling processing method of the present invention for achieving the above object comprises the steps of supplying a waste bumper pulverized powder pulverized to a predetermined size to the hopper and discharged by a predetermined amount; Firstly separating the coating film while rotatingly conveying the pulverized product through a driving means provided with a predetermined amount of a solvent that is a coating film treatment agent with respect to the pulverized material discharged by a predetermined amount; Separating the coating film on the pulverized product by continuously receiving the pulverized product from which the coated film is separated and passing through the water bath containing the solvent and water; Guiding the pulverized material suspended in the water layer in the water tank by one induction member installed in the water tank in one direction; Collecting and transferring the coating film separated from the pulverized product by the discharge path provided at the bottom of the water tank in one direction; It consists of a step of washing by receiving the crushed product is suspended in the water layer in the washing furnace installed in the end direction of the water tank is guided in one direction.

A bumper recycling apparatus for achieving another object of the present invention includes a water tank having a predetermined volume and having a water outlet at an upper side thereof, and a solvent outlet at a lower side thereof; A hopper installed at an upper side of the water tank and having a conveying path for receiving a pulverized product of the bumper pulverized and pulverized and transferring the predetermined amount by a predetermined amount; The main body is connected to the transfer path of the hopper and the solvent inlet is provided at a predetermined position, the stirring blade is installed inside the main body to negotiate transfer of the pulverized product with the solvent, and is connected to the rotating shaft of the stirring blade by a pulley and a belt. A coating film separation chamber made of a driving motor for rotating driving; Connected from the coating film separation chamber, the main body for conveying the pulverized product in one direction, the first conveying screw is installed in the main body for rotationally conveying the pulverized product, and connected to the chain provided through the first sprocket and the first A supply path including a drive motor to rotationally drive the transfer screw; It is connected to one end in the longitudinal direction of the supply passage is installed to pass the pulverized, a plurality of separation through holes for separating and discharging the coating film on the outer periphery, the outer ring is provided with a guide ring on both sides, the second sprocket on one side The cylindrical main body is installed, the second feed screw is installed on the coaxial with the first feed screw of the supply passage is installed to transfer the pulverized product fed from the supply passage, and the coaxial with the second feed screw is installed. A separation furnace including a stirring rod attached to the stirring rod for causing interference between the pulverized products and a driving motor connected to the chain provided through the second sprocket and rotating the main body; A support member having a partition wall formed with a through hole for penetrating both ends of the main body of the separation furnace, and a roller supporting the outer circumference of the guide ring on the partition wall in a circumferential direction; The main body is installed on the bottom surface of the water tank for collecting the coating film discharged from the separation furnace, the third feed screw for transferring the coating film installed in the main body in one direction, and the spring is connected to the third feed screw shaft A discharge passage including a joint and a drive motor for rotationally driving the third transfer screw provided through the spring joint; A fourth body installed obliquely on the water tank and configured to convey a pulverized product installed in the main body in one direction and a main body having an open upper portion in the longitudinal direction to naturally collect the pulverized product discharged from the separation furnace from the water layer of the water tank; The third screw is provided at one end of the feed screw and the upper direction in which the fourth feed screw is installed, and is connected to the chain provided through the third sprocket to drive the fourth feed screw to rotate, and the fourth feed. A washing furnace including water spraying means for washing and spraying the pulverized product which is installed on the screw and transported; It is characterized in that it comprises an induction member consisting of an aberration for guiding the pulverized matter suspended in the water layer to the washing furnace side is installed at equal intervals between the separation furnace and the washing furnace of the water tank, the drive motor for driving the aberration.

1 is a front view showing a waste bumper recycling apparatus of the present invention,

2 is a plan view of FIG.

FIG. 3 is an enlarged view of a portion “a” of FIG. 1;

4 is an enlarged view of portion "I" of Article 1;

5 is a cross-sectional view taken along the line A-A of FIG.

◎ Explanation of symbols for main part of drawing

10: water tank 12: water outlet

13: solvent outlet 20: hopper

30: coating membrane separation chamber 32: stirring blade

40: supply path 42: first feed screw

50: separation furnace 51a: through hole

52: second feed screw 53: stirring rod

60: support member 61: through hole

62: partition wall 63: roller

70: discharge path 72: third feed screw

80: washing furnace 82: fourth feed screw

84: water injection means M0, M1, M2, M3, M4, M5, M6: drive motor

90: guide member 91: aberration

a: water layer b: solvent layer

Hereinafter, with reference to the accompanying Figures 1 to 5 will be described in detail with respect to the present invention.

1 is a front view showing the bumper recycling apparatus of the present invention, FIG. 2 is a plan view of FIG. 1, FIG. 3 is an enlarged view of part "A" of FIG. 1, and FIG. 5 is an enlarged view, and FIG. 5 is a cross-sectional view taken along the line AA of FIG. 2.

First, the present invention comprises the steps of supplying a waste bumper pulverized material pulverized to a predetermined size to the hopper to discharge by a predetermined amount; Firstly separating the coating film while rotatingly conveying the pulverized product through a driving means provided with a predetermined amount of a solvent that is a coating film treatment agent with respect to the pulverized material discharged by a predetermined amount; Separating the coating film on the pulverized product by continuously receiving the pulverized product from which the coated film is separated and passing through the water bath containing the solvent and water; Guiding the pulverized material suspended in the water layer in the water tank in one direction by the guide member installed in the water tank; Collecting and transferring the coating film separated from the pulverized product by the discharge path provided at the bottom of the water tank in one direction; In the washing furnace installed in the end direction of the water tank is suspended in the water layer is supplied to the pulverized product is supplied in one direction, and the washing step, the treatment apparatus according to this process to separate the coating film from the pulverized product of the waste bumper In general, it consists of a film separation chamber, a water tank and a supply furnace, a separation furnace, an exhaust furnace and a washing furnace.

The water tank 10 may be filled with water and a solvent therein up to the horizontal line on which the water discharge port 12 is installed on the upper side, the lower side has a discharge port 13 for discharging the coating film from the solvent and the pulverized product It is installed.

Suitable solvents for separating the coating film in the present invention are one or more selected from the group consisting of methylene chloride, ethylene chloride, ethylene glycol and perchloro ethylene.

For reference, in the drawing, a represents a water layer and b represents a solvent layer.

And, one side on the water tank 10 is provided with a hopper 20 for receiving the pulverized product of the pulverized and processed bumper, the lower side of the hopper 20 to transfer the pulverized powder from the hopper by a predetermined amount The conveying path 21 is installed. In the conveying path 21, a conveying screw 22 which is rotated by the rotational power transfer of the driving motor M0 is installed.

The film separation chamber 30 is connected to the transfer path 21 of the hopper 20, and the film separation chamber 30 is provided with a main body 31 provided with a solvent inlet 31a at a predetermined position. ) Inside the stirring blade 32 for negotiating and conveying the pulverized product with the solvent, the rotating shaft of the stirring blade 32 is connected to the pulley 33 and the belt 34 from the drive motor (M1) It is composed of a structure for driving the rotation.

A supply path 40 for supplying and transporting the bumper pulverized product mixed with the solvent by a predetermined amount is provided in the lower portion of the coating membrane separation chamber 30.

The supply path 40 is a cylindrical body 41 is installed in the tank 10 so as to be in communication, in the body 41 to transfer the waste bumper pulverized product supplied from the hopper 20 in one direction The first feeding screw 42 is installed, one end of the shaft on which the first feeding screw 42 is installed is provided with a first sprocket 43, connected by a chain provided through the first sprocket 43, the first The drive motor (M2) for rotating the transfer screw 42 is installed on the upper tank (10).

One side of the supply passage 40, that is, one end of the main body 41 at the point where the pulverized material is discharged in one direction by the first transfer screw 42, the separation furnace 50 for separating and transferring the coating film peeled from the pulverized product. Connected with is installed.

The separation furnace 50 has a cylindrical body 51 in which a plurality of separation holes 51a are formed to separate the bottom surface of the water tank 10 by passing the coating film debris through the outer circumference thereof, and both sides of the body 51. The guide ring 51b wider than the diameter of the main body is integrally formed, and a second sprocket 51c is formed at one side to rotate the main body 51. Here, the second sprocket 51c is connected to the driving motor M3 on the water tank 10 for rotating the main body by being installed in a chain provided therein.

In addition, the second conveying screw for conveying the pulverized product supplied from the supply passage 40 on the coaxial with the first conveying screw 42 of the supply passage 40 is installed in the main body 51 ( 52 is rotatably installed at the inner center, and a stirring rod 53 is installed between the blades of the second transfer screw 52 to interfere with the crushed material.

In rotating the main body 51 of the separation furnace 50, the support member 60 is installed in the water tank 10, where the support member 60 is the main body 51 of the separation furnace 50. A roller for partitioning the guide ring portion 51b of the main body 51 in the circumferential direction of the edge of the through hole 61 as a partition wall 62 having a through hole 61 for guiding one end thereof during rotation driving ( 63) is installed.

Meanwhile, sensors S1 and S2 for detecting the height of the water layer a and the solvent layer b filled in the water tank 10 are installed at predetermined positions of the partition wall 62. Wherein the sensor (S1) to detect the filled amount from the bulkhead body 62 is installed inside the tank, the sensor (S2) to detect the height of the solvent.

At the bottom side of the water tank 10 is provided with a discharge path 70 for removing the specific gravity coating film discharged from the separation furnace 50, where the discharge path 70 is the main body 71 is open at the top A third transfer screw 762 is installed in one end, and one end of the third transfer screw 72 is connected to a spring joint 73 which is a power transmission medium, and the spring joint 73 is a driving motor provided on a water tank. It is a structure capable of rotationally driving the third transfer screw 72 to M4).

The bottom surface of the water tank in which the discharge path 70 is installed has a structure in which sludge with specific gravity can be guided to the center of the discharge path 70 by having an inclined surface toward the center side.

On the other hand, the washing furnace 80 is installed on one side of the upper portion of the separation passage 50 of the water tank 10, where the washing furnace 80 is submerged in the longitudinal portion of the water tank 10, but is installed inclinedly, The main body 81 is opened in the upper longitudinal direction to collect the pulverized product discharged from the separation furnace 50 from the water tank, and the pulverized product (pure resin state) installed in the main body 81 and suspended in the water layer (a) The fourth conveying screw 82 and the fourth conveying screw 82 for conveying are provided in a chain provided with a third sprocket 83 provided at one end in the upward direction to install the fourth conveying screw 82. The drive motor M5 for rotating is provided.

And, on the fourth transfer screw 82 is provided with water injection means 84 for washing the pulverized matter is separated from the oil transported and discharged.

A plurality of inductions are installed at equal intervals on the water tank 10 of the separation furnace 50 and the washing furnace 80 to induce supply of the pulverized product separated from the coating film in the water tank 10 to the washing furnace 80. It can be supplied to the member (90). The induction member 90 is provided with a structure in which the rotary aberration 91 partially submerged to the depth of the water layer a on the water tank 10 can be driven to rotate by the driving motor M6.

Referring to the operation and processing method of the bumper recycling apparatus of the present invention configured as described above are as follows.

First, in the water tank 10 of the processing apparatus of the present invention, water is filled up to the level line on which the sensor S1 provided on the partition 62 of the constant water level support member 60 is filled, and the solvent S2 is filled up to the shipboard. Allows all processes to be processed in a state.

First, the waste bumper pulverized product pulverized in the crusher is subjected to a step of feeding the hopper 20 on the water tank 10 while the coating film remains intact, and the supplied pulverized product is transferred to the lower portion of the hopper 20. The pulverized product is fed and conveyed by a predetermined amount.

At this time, the conveying screw 22 installed on the inner side of the conveying path 21 conveys the pulverized product in one direction while rotating by the power of the driving motor M0 connected to one side, and the conveyed pulverized product is coated with the next coating film. It is supplied in the main body 31 of the separation chamber 30.

The pulverized product supplied to the coating film separation chamber 30 rotates the stirring blades 32 in the main body 31 as power transfer of the belt 34 and the pulley 33 due to the driving motor M1. The pulverized product supplied to the coating membrane separation chamber 30 is injected with a predetermined amount of solvent through the solvent inlet 31a provided in the main body 31 to be mixed with the pulverized product and stirred.

At this time, the pulverized product serves to separate the coating film coated on the surface of the pulverized product due to the chemical characteristics of the solvent, and the separating role is primarily performed in the coating separation chamber 30 to block odor emitted from the solvent. It can prevent the air pollution of the surrounding environment.

The pulverized material which is negotiated according to the rotation of the stirring blade 32 to be separated from the primary coating film is successively transferred to the supply passage 40 installed with the coating membrane separation chamber 30 in a predetermined amount, and the main body of the supply passage 40 ( The pulverized material is continuously fed to the separation furnace 50 by a predetermined amount by the driving of the first transfer screw 42 installed in 41).

Here, the drive of the first conveying screw 42 is connected to the first sprocket 43 provided on one side by a chain and can be rotated by power transmission due to the drive motor (M2) installed on the tank (10). The pulverized material can be conveyed in one direction by the shape of the first conveying screw 42.

As described above, the pulverized product supplied by the first transfer screw 42 of the supply path 40 is supplied to the separation furnace 50 having the through hole 51a formed in the main body 51, and at the same time, 2 Feed the pulverized product by rotating the rotation of the screw 52 is supplied to the separation furnace 50, wherein the pulverized material introduced into the main body of the separation furnace 50 to maintain a constant water level in the water tank (10) Through the solvent layer (b) to act to separate the coating film is not separated in the coating film separation chamber 30, the coating film separated by the solvent in the already separated coating film and separation furnace 50 to its specific gravity It is lowered to the bottom surface in the water tank 10 through the plurality of through holes 51a in the main body 51.

At this time, in accordance with the rotation of the second feed screw 52 in the separation furnace 50, the stirring rod 53 attached between the wings are further interfering with the crushed material transported between the wings through the through hole (51a) Separating the coating film from the pulverized product together with all the solvents, and rotating the main body 51 with a chain connected through a second sprocket 52 formed in the main body 51 by a drive motor M3 on the water tank (10). It is possible to smoothly discharge the coating film exiting the through hole 51a. Here, in the rotation of the main body 51, the roller 63 provided on the partition body 62, which is the support member 60, guides the guide rolling portions 51b of both sides of the main body 51 to guide rolling.

In the rotation operation of the separation furnace 50 as described above, the coating film exiting the through hole 51a is precipitated in the lower water layer, trapped in the separation furnace, and then transported by the transfer screw 52 to the main body 51 of the separation furnace. The pulverized product (pure resin state) exiting the surface floats to the surface of the water layer (a) of the surface by its buoyancy.

On the other hand, the coating film that passes through the through hole (41a) of the separation furnace 50 or exit the main body 51 is precipitated to the bottom surface of the tank, the bottom center of the tank naturally due to the inclined surface biased toward the center of the lower center It is collected in the discharge path 70 is installed in.

The coating film deposited and collected on the main body 71 of the discharge path 70 is transferred in one direction by the rotation of the third transfer screw 72 which is powered by the driving motor M4 to the spring joint 73. The sludge is to be treated separately through the solvent outlet 13 provided in the bottom end position of the water tank (10).

On the other hand, the pulverized matter floated on the water surface through the separation furnace 50 is pulverized in one direction by the drive motor (M6) for driving the aberration 91 and the aberration of the guide member 90 installed on the water tank (10). Will lead to water. Here, the guided and floated crushed matter is naturally attracted to the main body 81 of the washing furnace 80 installed to be partially obliquely submerged at the end of the water tank (10).

As described above, the pulverized product discharged through the washing furnace 80 is transferred upward by the rotational driving of the fourth feeding screw 82 installed in the main body 81 of the washing furnace 80, which is the fourth feeding screw ( 82 is rotated by a drive motor M5 installed in a chain from the third sprocket 83 installed at one end of the shaft, and the pulverized material can be conveyed and discharged upward.

The pulverized product transported along the main body 81 of the washing furnace 80 may be neatly processed through the washing process by the water spraying means 84 installed on the upper side of the washing furnace 80 to process the solvent components remaining in the pulverized product. This can lead directly to the drying process, which is the next process of the milled product.

In the process performed by the washing means 84 in the washing furnace 80 as described above, the water supplied into the water tank 10 is overflowed through the water outlet 12 provided in the water tank through a separate purification process Then, the solvent and the coating film discharged through the solvent outlet 13 of the tank is filtered so that the solvent can be supplied into the tank again.

In order to separate and discharge the coating film and the solvent, including the pulverized product from the pulverized product through the water tank, the separation of the coating film and the solvent is made in the water in the water tank, the operator does not have to touch the solvent directly, the water layer This allows the solvent layer to facilitate the separation operation without smelling bad effects in the settled state, and can prevent the diffusion of the solvent to prevent the harmful to the human body due to the use of the solvent. .

In addition, in the present invention, the treatment apparatus discharges the pulverized product from the supply path through the film separation chamber internally through the hopper in order through the separation furnace, thereby improving the coating separation efficiency and finally washing the completely separated pulverized product. The multi-stage process can be carried out continuously, so that a high quality crushed product can be obtained for use as recycled water.

As described above, in the present invention, the coating film coated on the surface is separated from the waste bumper so that only pure resin can be obtained and recycled, and a film separation chamber for separating the coating film is provided between the supply hopper and the supply passage. It has a coating film separation step with phosphorus solvent, and enables to complete the separation of the coating film in the separation furnace installed in the water tank secondly. By discharging, the separation can be facilitated by a series of processes, as well as the separation of the coating from the pulverized product in a water-filled bath to prevent occupational diseases that can occur due to exposure to harmful solvents and There is an effect to improve.

Claims (3)

Supplying the waste bumper pulverized product pulverized to a predetermined size to a hopper and discharging them by a predetermined amount; Firstly separating the coating film while rotatingly conveying the pulverized product through a driving means provided with a predetermined amount of a solvent that is a coating film treatment agent with respect to the pulverized material discharged by a predetermined amount; Separating the coating film on the pulverized product by continuously receiving the pulverized product from which the coated film is separated and passing through the water bath containing the solvent and water; Guiding the pulverized material suspended in the water layer in the water tank by one induction member installed in the water tank in one direction; Collecting and transferring the coating film separated from the pulverized product by the discharge path provided at the bottom of the water tank in one direction; Waste bumper recycling processing method comprising the step of receiving the crushed matter is suspended in the water layer in the washing furnace installed in the running direction end of the water tank guided in one direction. A water tank 10 having a predetermined volume and having a water outlet 12 at an upper side thereof, and a solvent outlet 13 provided at a lower side thereof; A hopper 20 installed at an upper side of the water tank 10 and provided with a conveying path 21 for receiving a pulverized product of the bumper pulverized and pulverized, and transferring the predetermined amount by a predetermined amount; The main body 31 is connected to the transfer path 21 of the hopper 20 and the solvent inlet 31a is provided at a predetermined position, and the stirring blade is installed inside the main body 31 to negotiate and transport the pulverized product with the solvent. (32) and the coating film separation chamber (30) made of a drive motor (M1) connected to the rotating shaft of the stirring blade (32) by a pulley (33) and a belt (34) to rotate and drive it; Connected from the coating film separation chamber 30, the main body 41 for conveying the pulverized product in one direction, the first transfer screw 42 is installed in the main body 41 for rotationally conveying the pulverized product, and the first A supply path 40 connected to the chain provided through the sprocket 43 and including a drive motor M2 for rotationally driving the first transfer screw 42; It is connected to one end in the longitudinal direction of the supply path 40 is installed so that the pulverized product passes, a plurality of separation through-hole 51a for separating and discharging the coating film on the outer periphery, the guide ring portion 51b on both sides of the outer periphery Is provided, is provided on the coaxial shaft is provided with a cylindrical main body 51, the second sprocket 51c is provided on one side, the first transfer screw 42 of the supply path 40 is supplied from the supply path A stirring rod 53 for causing interference between the second conveying screw 52 for conveying the pulverized product, the pulverized matter attached to and transported on the coaxial to which the second conveying screw 52 is installed, and the second sprocket A separation furnace 50 connected to the chain provided through the 51c and including a driving motor M3 for rotationally driving the main body 51; A partition wall 62 having a through hole 61 for penetrating both ends of the main body 51 of the separation path 50, and an outer circumference of the guide ring portion 61b on the partition wall 62 to be cloudably supported. A support member 60 having rollers 63 arranged in a circumference thereof; The main body 71 is installed on the bottom surface of the water tank for collecting the coating film discharged from the separation furnace 50, and the third feed crews 72 for transferring the coating film installed and settled in the body 71 in one direction. And a spring joint 73 connected to the shaft of the third transfer screw 72 and a drive motor M4 for rotationally driving the third transfer screw 72 provided through the spring joint 73. Furnace 70; It is installed on the water tank 10 inclined, and the main body 81 is opened in the upper body in the longitudinal direction to collect the pulverized product discharged from the separation furnace 40 from the water layer of the water tank, and is installed in the body 81 A third sprocket 83 is provided at one end in the upper direction in which the fourth conveying screw 82 and the fourth conveying screw 82 are installed to convey the pulverized product supplied in one direction, and the third sprocket 83 is disposed. Water injection for washing and spraying the driving motor M5 installed in a chain provided through the driving motor M5 for rotationally driving the fourth feed screw 82 and the pulverized product which is installed and transported close to the fourth feed screw 82. A washing furnace 80 incorporating means 84; The aberration 91 and the aberration 91 are installed at equal intervals between the separation furnace 50 and the washing furnace 80 of the water tank 10 to guide the pulverized matter suspended in the water layer to the washing furnace 80 side, and the aberration 91 Waste bumper recycling processing apparatus comprising a guide member 90 made of a driving motor (M6) for driving. According to claim 2, Sensor (S1) for detecting the water level of the water layer in the predetermined position of the partition wall 62 of the support member 60 installed in the water tank 10, Sensor (S2) for detecting the water level of the solvent layer Waste bumper recycling processing apparatus characterized in that the installed.