CN112521656B - Recovery device and recovery method for accelerating degradation of polyester resin waste - Google Patents
Recovery device and recovery method for accelerating degradation of polyester resin waste Download PDFInfo
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- CN112521656B CN112521656B CN202011242614.2A CN202011242614A CN112521656B CN 112521656 B CN112521656 B CN 112521656B CN 202011242614 A CN202011242614 A CN 202011242614A CN 112521656 B CN112521656 B CN 112521656B
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- C—CHEMISTRY; METALLURGY
- C08—ORGANIC MACROMOLECULAR COMPOUNDS; THEIR PREPARATION OR CHEMICAL WORKING-UP; COMPOSITIONS BASED THEREON
- C08J—WORKING-UP; GENERAL PROCESSES OF COMPOUNDING; AFTER-TREATMENT NOT COVERED BY SUBCLASSES C08B, C08C, C08F, C08G or C08H
- C08J11/00—Recovery or working-up of waste materials
- C08J11/04—Recovery or working-up of waste materials of polymers
- C08J11/10—Recovery or working-up of waste materials of polymers by chemically breaking down the molecular chains of polymers or breaking of crosslinks, e.g. devulcanisation
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- C—CHEMISTRY; METALLURGY
- C08—ORGANIC MACROMOLECULAR COMPOUNDS; THEIR PREPARATION OR CHEMICAL WORKING-UP; COMPOSITIONS BASED THEREON
- C08J—WORKING-UP; GENERAL PROCESSES OF COMPOUNDING; AFTER-TREATMENT NOT COVERED BY SUBCLASSES C08B, C08C, C08F, C08G or C08H
- C08J2367/00—Characterised by the use of polyesters obtained by reactions forming a carboxylic ester link in the main chain; Derivatives of such polymers
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- Y—GENERAL TAGGING OF NEW TECHNOLOGICAL DEVELOPMENTS; GENERAL TAGGING OF CROSS-SECTIONAL TECHNOLOGIES SPANNING OVER SEVERAL SECTIONS OF THE IPC; TECHNICAL SUBJECTS COVERED BY FORMER USPC CROSS-REFERENCE ART COLLECTIONS [XRACs] AND DIGESTS
- Y02—TECHNOLOGIES OR APPLICATIONS FOR MITIGATION OR ADAPTATION AGAINST CLIMATE CHANGE
- Y02W—CLIMATE CHANGE MITIGATION TECHNOLOGIES RELATED TO WASTEWATER TREATMENT OR WASTE MANAGEMENT
- Y02W30/00—Technologies for solid waste management
- Y02W30/50—Reuse, recycling or recovery technologies
- Y02W30/62—Plastics recycling; Rubber recycling
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- Separation, Recovery Or Treatment Of Waste Materials Containing Plastics (AREA)
Abstract
The invention discloses a recovery device and a recovery method for accelerating degradation of polyester resin waste, and the recovery device comprises an outer shell, wherein the front surface of the outer shell is fixedly connected with a PLC (programmable logic controller), the upper part of the inner side wall of the outer shell is integrally formed with a first flow channel, the upper part of the inner side wall of the outer shell is welded with a first motor support, the inner side wall of the first motor support is fixedly connected with a first motor, the output shaft of the first motor is fixedly connected with a cutting tool, the inner side wall of the outer shell is integrally formed with a second flow channel, and the outer surface of the second flow channel is matched with the cutting tool; the waste is cut into waste particles with the same volume by a cutting tool, so that the dihydric alcohol degradation liquid can be conveniently and fully absorbed, the dihydric alcohol degradation liquid is fully stirred by a stirrer, and the waste is fully degraded by matching with a pyrolysis process of an annular electric heating plate; and in the subsequent step, the dihydric alcohol degradation liquid can be recycled by depending on the containing barrel and the filtering plate body, so that the waste of resources is avoided.
Description
Technical Field
The invention relates to the technical field of chemical waste treatment devices, in particular to a recovery device and a recovery method for accelerating degradation of polyester resin waste.
Background
The polyester resin is an unsaturated polyester adhesive for short, mainly comprises unsaturated polyester resin, an initiator, an accelerator, a filler, a thixotropic agent and the like, is polymerized into an insoluble and infusible product at normal temperature under the action of the initiator and the accelerator, and is mainly used for producing coil coating; the polyester adhesive has small viscosity, easy wetting, good manufacturability, large hardness of a cured adhesive layer, good transparency, high brightness, capability of being pressurized and quickly cured at room temperature, good heat resistance and excellent electrical property; the adhesive has the defects of large shrinkage, low adhesive toughness, poor chemical medium resistance and water resistance, and is used for non-structural adhesives, mainly used for adhering glass fiber reinforced plastics, hard plastics, concrete, electric can seals and the like.
And according to its chemical property, used polyester resin waste material is not handled, it is simply bury or burn and produce a large amount of toxic chemical gas easily, can cause the influence to the ecological environment, and present processing method is mostly artifical with waste material cutting to a certain size, the degradation processing is carried out in the dihydric alcohol degradation liquid to the bubble afterwards, this kind of method not only wastes time and energy the efficiency is not high, and because it deposits in ware body bottom, be difficult to fully degrade by the dihydric alcohol degradation liquid, waste material after the processing still has certain threat nature to the environment.
In order to solve the problems, a recovery device and a recovery method for accelerating degradation of polyester resin waste are provided.
Disclosure of Invention
The invention aims to provide a recovery device and a recovery method for accelerating degradation of polyester resin waste, so as to solve the problems in the background technology.
In order to achieve the purpose, the invention provides the following technical scheme: a recovery device for accelerating degradation of polyester resin waste comprises an outer shell, wherein a PLC (programmable logic controller) is fixedly connected to the front surface of the outer shell, a first flow passage is integrally formed in the upper portion of the inner side wall of the outer shell, a first motor support is welded to the upper portion of the inner side wall of the outer shell, a first motor is fixedly connected to the inner side wall of the first motor support, a cutting tool is fixedly connected to an output shaft of the first motor, a second flow passage is integrally formed in the inner side wall of the outer shell, the outer surface of the second flow passage is matched with the cutting tool, two first through holes are symmetrically formed in two sides of the inner side wall of the outer shell, a first baffle disc is fixedly connected to the lower surface of each first through hole, a barrel body is fixedly connected to the inner side wall of the outer shell, an annular electric heating plate is fixedly connected to the inner side wall of the barrel body, and two second through holes are symmetrically formed in two sides of the lower surface of the barrel body, the lower fixed surface of second through-hole is connected with the second and keeps off the dish, surface one side fixedly connected with of shell body holds the casing, the inside wall lower part fixedly connected with of shell body holds the bucket, the inside wall fixedly connected with who holds the bucket filters the plate body, the inside wall middle part integrated into one piece that holds the bucket has the second motor support, the inside wall fixedly connected with second motor of second motor support, the surface opposite side fixedly connected with stationary housing of shell body, stationary housing's inside wall upper portion fixedly connected with evaporimeter, stationary housing's inside wall integrated into one piece has the third runner, stationary housing's inside wall opposite side integrated into one piece has the delivery port, the rear surface integrated into one piece of staving has the blind hole.
As further preferable in the present technical solution: the electrical output end of the PLC controller is electrically connected with the electrical input ends of the first motor, the first electric push rod, the annular electric heating plate, the second motor, the second electric push rod, the water suction pump, the first air supply fan, the evaporator and the second air supply fan.
As further preferable in the present technical solution: the outer surface of the first baffle disc is welded on a piston rod of the first electric push rod.
As further preferable in the present technical solution: the outer surface of the second baffle disc is welded on a piston rod of the second electric push rod.
As further preferable in the present technical solution: the inside wall fixedly connected with suction pump that holds the casing, the play water port of suction pump with the inside wall fixed connection of staving, the upper surface integrated into one piece that holds the casing has first body.
As further preferable in the present technical solution: four filter screens of inside wall symmetry fixedly connected with of filtering the plate body, the surface opposite side upper portion integrated into one piece of filtering the plate body has the second body, the surface opposite side lower part integrated into one piece of filtering the plate body has the third body.
As further preferable in the present technical solution: and an output shaft of the second motor is fixedly connected with a stirrer.
As further preferable in the present technical solution: the fixed casing's inside wall opposite side fixedly connected with first air supply fan, the surface of first air supply fan with staving looks adaptation, the lower fixed surface of evaporimeter is connected with the second air supply fan.
As further preferable in the present technical solution: the upper surface integrated into one piece of fixed casing has the fourth body, the surface of fourth body with the blind hole looks adaptation.
In addition, the invention also provides a recovery method of the recovery device for accelerating degradation of the polyester resin waste, which comprises the following steps:
s1, firstly, pouring the polyester resin waste into a first flow channel, and starting a PLC (programmable logic controller);
s2, according to the control of the program of the PLC, the first motor is started firstly to drive the cutting tool to carry out cutting operation, and the waste materials are cut into particles; then starting a first electric push rod to control the first baffle disc to open the first through hole, so that the waste particles fall down;
s3, the falling waste particles are received by the barrel body, at the moment, the program of the PLC controls the water suction pump to guide the dihydric alcohol degradation liquid in the accommodating shell into the barrel body, then the second motor is started to drive the stirrer to rotate, so that the waste particles soaked in the dihydric alcohol degradation liquid are fully absorbed, and meanwhile, the annular electric heating plate is started to meet the heat requirement of the pyrolysis process;
s4, under the cooperation of the stirrer and the annular electric heating plate, stirring and heating the waste particles for a period of time, fully degrading the polyester resin of the waste particles, and precipitating the polyester resin into glass fibers and oxidized dihydric alcohol; at the moment, the program of the PLC controls a second electric push rod to move a second baffle disc to open a second through hole, and the oxidized dihydric alcohol liquid mixed with the glass fiber is dropped into the containing barrel under the action of gravity;
s5, in the process that the oxidized dihydric alcohol liquid mixed with the glass fibers falls into the containing barrel, the glass fibers are blocked to the middle part of the containing barrel by the upper filtering plate body and the upper filtering screen, the oxidized dihydric alcohol liquid continuously falls to the bottom of the containing barrel, and the oxidized dihydric alcohol liquid are transported to the outside by the second pipe body and the third pipe body for recycling;
s6, under the pyrolysis process of the annular electric heating plate, polyester resin waste in the dihydric alcohol degradation liquid volatilizes impurities to form pyrolysis gas, at the moment, the pyrolysis gas is conveyed to the fixed shell under the action of a first gas supply fan controlled by a program of a PLC (programmable logic controller), at the moment, the evaporator and a second gas supply fan start to work, and the pyrolysis gas is absorbed into the evaporator to carry out a fraction process; under the action of the fraction, the pyrolysis gas can be decomposed into thermal non-condensable gas and water containing impurities in the polyester resin waste, wherein the water can flow to a water outlet through a third flow channel under the action of gravity and is received by the outside; and the thermal-state noncondensable gas can be connected into the barrel body through the fourth pipe body, so that partial heat is provided for the pyrolysis process in the barrel body, and the waste utilization is realized.
As further preferable in the present technical solution: in S3, the glycol degradation solution in the housing is stored by external infusion through the first tube.
Compared with the prior art, the invention has the beneficial effects that:
firstly, all electrical elements are connected through a PLC controller, and the matching linkage of all the elements is met by program control, so that time and labor are saved, complicated wiring is avoided, and the method can be easily realized by only adjusting the program of the PLC controller under the condition of different requirements;
cutting the waste into waste particles with the same volume by using a cutting tool, so that the dihydric alcohol degradation liquid can be conveniently and fully absorbed, fully stirring the dihydric alcohol degradation liquid by using a stirrer, and fully degrading the waste by matching with a pyrolysis process of an annular electric heating plate; in the subsequent steps, the oxidized dihydric alcohol degradation liquid can be recycled by means of the containing barrel and the filtering plate body, so that the waste of resources is avoided;
thirdly, polyester resin waste in the dihydric alcohol degradation liquid volatilizes impurities to form pyrolysis gas, the pyrolysis gas is decomposed into thermal noncondensable gas and water containing the impurities in the polyester resin waste under the action of fractions of the evaporator, and the water flows to a water outlet through a third flow passage under the action of gravity and is received by the outside; and the thermal-state noncondensable gas can be connected into the barrel body through the fourth pipe body, so that partial heat is provided for the pyrolysis process in the barrel body, and the waste utilization is realized.
Drawings
FIG. 1 is a schematic perspective view of the present invention;
FIG. 2 is a schematic cross-sectional perspective view of the outer housing of the present invention;
FIG. 3 is a schematic view of another perspective cross-sectional three-dimensional structure of the outer housing of the present invention;
FIG. 4 is a schematic perspective view of the outer casing of the present invention;
FIG. 5 is a schematic view of the bottom view perspective structure of the present invention;
FIG. 6 is a schematic cross-sectional perspective view of the outer housing of the present invention;
FIG. 7 is a PLC controller logic circuit programming diagram of the present invention;
fig. 8 is an external wiring diagram of the PLC controller of the present invention.
In the figure: 1. an outer housing; 101. a first flow passage; 102. a first motor bracket; 103. a second flow passage; 104. a first through hole; 2. a PLC controller; 3. a first motor; 4. a cutting tool; 5. a first electric push rod; 501. a first catch tray; 6. a barrel body; 7. An annular electrical heating plate; 8. a containment drum; 801. a second motor support; 802. a filter plate body; 803. filtering with a screen; 804. a second tube body; 805. a third tube; 9. a second motor; 10. a stirrer; 11. a second electric push rod; 1101. a second catch tray; 12. a water pump; 13. a housing case; 1301. a first pipe body; 14. a stationary housing; 1401. a third flow path; 1402. a water outlet; 1403. a fourth tube body; 15. a first air supply fan; 16. an evaporator; 1601. a second air supply fan.
Detailed Description
The technical solutions in the embodiments of the present invention will be clearly and completely described below with reference to the drawings in the embodiments of the present invention, and it is obvious that the described embodiments are only a part of the embodiments of the present invention, and not all of the embodiments. All other embodiments, which can be derived by a person skilled in the art from the embodiments given herein without making any creative effort, shall fall within the protection scope of the present invention.
Examples
Referring to fig. 1-8, the present invention provides a technical solution: a recovery device for accelerating degradation of polyester resin waste comprises an outer shell 1, a PLC (programmable logic controller) 2 is fixedly connected to the front surface of the outer shell 1, a first flow channel 101 is integrally formed on the upper portion of the inner side wall of the outer shell 1, a first motor support 102 is welded on the upper portion of the inner side wall of the outer shell 1, a first motor 3 is fixedly connected to the inner side wall of the first motor support 102, a cutting tool 4 is fixedly connected to an output shaft of the first motor 3, a second flow channel 103 is integrally formed on the inner side wall of the outer shell 1, the outer surface of the second flow channel 103 is matched with the cutting tool 4, two first through holes 104 are symmetrically formed on two sides of the inner side wall of the outer shell 1, a first baffle disc 501 is fixedly connected to the lower surface of the first through hole 104, a barrel body 6 is fixedly connected to the inner side wall of the outer shell 1, an annular electric heating plate 7 is fixedly connected to the inner side wall of the barrel body 6, two second through holes are symmetrically formed on two sides of the lower surface of the barrel body 6, lower fixed surface of second through-hole is connected with second catch 1101, outer surface one side fixedly connected with of shell body 1 holds casing 13, the inside wall lower part fixedly connected with of shell body 1 holds bucket 8, the inside wall fixedly connected with that holds bucket 8 filters plate body 802, the inside wall middle part integrated into one piece that holds bucket 8 has second motor support 801, the inside wall fixedly connected with second motor 9 of second motor support 801, the fixed casing 14 of outer surface opposite side fixedly connected with of shell body 1, the inside wall upper portion fixedly connected with evaporimeter 16 of fixed casing 14, the inside wall integrated into one piece of fixed casing 14 has third flow channel 1401, the inside wall opposite side integrated into one piece of fixed casing 14 has delivery port 1402, the rear surface integrated into one piece of staving 6 has the blind hole.
In this embodiment, specifically: the electrical output end of the PLC controller 2 is electrically connected to the electrical input ends of the first motor 3, the first electric push rod 5, the annular electric heating plate 7, the second motor 9, the second electric push rod 11, the water suction pump 12, the first air supply fan 15, the evaporator 16 and the second air supply fan 1601.
In this embodiment, specifically: the outer surface of the first baffle disc 501 is welded on the piston rod of the first electric push rod 5; the first electric push rod 5 can control the first blocking disc 501 to open the first through hole 104, so that the waste particles fall down.
In this embodiment, specifically: the outer surface of the second catch 1101 is welded to the piston rod of the second electric push rod 11; the second electric push rod 11 can move the second shutter 1101 to open the second through hole, and the oxydol liquid mixed with the glass fiber is dropped into the containing barrel 8 under the action of gravity.
In this embodiment, specifically: a water suction pump 12 is fixedly connected to the inner side wall of the accommodating shell 13, a water outlet port of the water suction pump 12 is fixedly connected with the inner side wall of the barrel body 6, and a first pipe body 1301 is integrally formed on the upper surface of the accommodating shell 13; the suction pump 12 may introduce the glycol degradation liquid in the receiving case 13 into the tub 6.
In this embodiment, specifically: four filter screens 803 are symmetrically and fixedly connected to the inner side wall of the filter plate body 802, a second pipe body 804 is integrally formed on the upper portion of the other side of the outer surface of the filter plate body 802, and a third pipe body 805 is integrally formed on the lower portion of the other side of the outer surface of the filter plate body 802; when the oxidized diol liquid mixed with the glass fibers falls into the containing barrel 8, the glass fibers are blocked by the upper filtering plate body 802 and the filtering screen 803 to the middle of the containing barrel 8, and the oxidized diol liquid continues to fall to the bottom of the containing barrel 8, and the oxidized diol liquid are transported to the outside by virtue of the second pipe body 804 and the third pipe body 805 to be recycled;
in this embodiment, specifically: an output shaft of the second motor 9 is fixedly connected with a stirrer 10; the stirrer 10 can sufficiently stir the glycol degradation liquid and sufficiently degrade the waste material in cooperation with the pyrolysis process of the ring-shaped electric heating plate 7.
In this embodiment, specifically: a first air supply fan 15 is fixedly connected to the other side of the inner side wall of the fixed shell 14, the outer surface of the first air supply fan 15 is matched with the barrel body 6, and a second air supply fan 1601 is fixedly connected to the lower surface of the evaporator 16; under the pyrolysis process of the annular electric heating plate 7, polyester resin waste in the glycol degradation liquid volatilizes impurities to form pyrolysis gas, the pyrolysis gas is conveyed to the fixed shell 14 under the action of the first air supply fan 15, the evaporator 16 and the second air supply fan 1601 start to work at the moment, and the pyrolysis gas is absorbed into the evaporator 16 to carry out a fraction process; under the action of the distillate, the pyrolysis gas is decomposed into a thermal non-condensable gas and water containing impurities in the polyester resin waste, wherein the water flows to the water outlet 1402 through the third flow passage 1401 under the action of gravity and is received by the outside.
In this embodiment, specifically: a fourth tube 1403 is integrally formed on the upper surface of the fixed shell 14, and the outer surface of the fourth tube 1403 is matched with the blind hole; the thermal non-condensable gas is introduced into the barrel 6 through the fourth pipe 1403, so that part of heat is provided for the pyrolysis process in the barrel, and waste utilization is achieved.
In addition, the invention also provides a recovery method of the recovery device for accelerating degradation of the polyester resin waste, which comprises the following steps:
s1, firstly, pouring the polyester resin waste into the first flow channel 101, and starting the PLC 2 and a programming program thereof;
s2, according to the control of the program of the PLC 2, the first motor 3 is started firstly to drive the cutting tool 4 to carry out cutting operation, and the waste materials are cut into particles; then, the first electric push rod 5 is started to control the first baffle disc 501 to open the first through hole 104, so that the waste particles fall down;
s3, the falling waste particles are received by the barrel body 6, at the moment, the program of the PLC 2 controls the water suction pump 12 to guide the dihydric alcohol degradation liquid in the accommodating shell 13 into the barrel body 6, then the second motor 9 is started to drive the stirrer 10 to rotate, so that the waste particles soaked in the dihydric alcohol degradation liquid are fully absorbed, and meanwhile, the annular electric heating plate 7 is started to meet the heat requirement of the pyrolysis process;
s4, under the cooperation of the stirrer 10 and the annular electric heating plate 7, stirring and heating the waste particles for a period of time, fully degrading the polyester resin of the waste particles, and precipitating into glass fibers and oxidized dihydric alcohol; at this time, the program of the PLC controller 2 controls the second electric push rod 11 to move the second shutter 1101 to open the second through hole, so that the oxydol liquid mixed with the glass fiber is dropped into the containing barrel 8 by the action of gravity;
s5, in the process of dropping the oxidized dihydric alcohol liquid mixed with the glass fiber into the containing barrel 8, the glass fiber is blocked by the upper filtering plate 802 and the filtering net 803 to the middle of the containing barrel 8, and the oxidized dihydric alcohol liquid continues to drop to the bottom of the containing barrel 8, and the oxidized dihydric alcohol liquid and the glass fiber are transported to the outside by the second pipe 804 and the third pipe 805 for recycling;
s6, under the pyrolysis process of the annular electric heating plate 7, polyester resin waste in the glycol degradation liquid volatilizes impurities to form pyrolysis gas, at the moment, the pyrolysis gas is conveyed to the fixed shell 14 under the action of the first air supply fan 15 controlled by the program of the PLC 2, at the moment, the evaporator 16 and the second air supply fan 1601 start to work, and the pyrolysis gas is absorbed into the evaporator 16 to carry out the fraction process; under the action of the distillate, the pyrolysis gas is decomposed into thermal non-condensable gas and water containing impurities in the polyester resin waste, wherein the water flows to a water outlet 1402 through a third flow channel 1401 under the action of gravity and is received by the outside; the thermal non-condensable gas is introduced into the barrel 6 through the fourth pipe 1403, so as to provide partial heat for the pyrolysis process therein, thereby achieving waste utilization.
In this embodiment, specifically: in S3, the glycol degradation liquid in the accommodation case 13 is stored by external infusion through the first tube 1301.
In this embodiment, referring to fig. 7, a logic circuit programming diagram of the PLC controller 2 of the present invention: in the figure, Y0 is the first motor 3, Y1 is the first electric putter 5, Y2 is the water pump 12, Y3 is the second motor 9, Y4 is the first air supply fan 15, Y5 is the second air supply fan 1601, Y6 is the evaporator 16, Y7 is the second electric putter 11; x0 is a start button of the PLC controller 2, and X1 is an emergency stop button;
after X0 is pressed down, Y0 is started and self-locked, a timer T0 is started to start sixty-second timing, after timing is finished, T0 is normally closed and normally open, the normally open is normally closed, Y1 is started while Y0 is disconnected, T1 is started to perform ten-second timing, after timing is finished, T1 is normally closed and normally open, the normally open is normally closed, Y2 is started and self-locked while Y1 is disconnected, meanwhile, a timer T2 is started to start ten-second timing, after timing is finished, T2 is normally closed and normally open, the normally open is normally closed, Y3 is started and self-locked while Y2 is disconnected, a timer T42 is started to start one hundred twenty-second timing, the normally open of T2 is normally closed, the normally open is normally closed, Y4, Y5 and Y6 are started and self-locked, the normally closed is normally open and normally open after T3 timing is finished, Y4, Y5 and Y6 are normally closed, Y7 is started and self-locked, and a timer T4 is started; after the timing is finished, the T4 is normally closed and normally open, the normally open is normally closed, Y7 is disconnected, Y0 of the first program is started, and then the steps are repeated; when X1 is pressed, all programs are abruptly stopped and disconnected, and circuit protection is achieved.
Working principle or structural principle, when using: by the program of the PLC 2, a starting button X1 is pressed, the first motor 3 is started to drive the cutting tool 4 to carry out cutting operation for sixty seconds, and the waste materials are cut into particles; after sixty seconds, the first electric push rod 5 is controlled by the program of the PLC 2 to control the first baffle disc 501 to open the first through hole 104, so that the waste particles fall down;
the falling waste particles can be received by the barrel body 6, at the moment, the program of the PLC 2 controls the water suction pump 12 to be started for ten seconds, the dihydric alcohol degradation liquid in the accommodating shell 13 is led into the barrel body 6, then the PLC 2 starts the second motor 9 to drive the stirrer 10 to rotate for one hundred twenty seconds, so that the waste particles soaked in the dihydric alcohol degradation liquid are fully absorbed, and meanwhile, the annular electric heating plate 7 is started to meet the heat requirement of the pyrolysis process; meanwhile, under the pyrolysis process of the annular electric heating plate 7, the polyester resin waste in the glycol degradation liquid volatilizes impurities to form pyrolysis gas, at the moment, the pyrolysis gas is conveyed to the fixed shell 14 under the action of the first air supply fan 15 controlled by the program of the PLC 2, at the moment, the evaporator 16 and the second air supply fan 1601 start to work, and the pyrolysis gas is absorbed into the evaporator 16 to carry out the fraction process; under the action of the distillate, the pyrolysis gas is decomposed into thermal non-condensable gas and water containing impurities in the polyester resin waste, wherein the water flows to a water outlet 1402 through a third flow channel 1401 under the action of gravity and is received by the outside; the thermal non-condensable gas is introduced into the barrel body 6 through the fourth pipe 1403, so that partial heat is provided for the pyrolysis process in the barrel body, and waste utilization is achieved;
and second motor 9 finishes the operation after then start second electric putter 11 under PLC controller 2's effect, and the oxidation dihydric alcohol liquid that has mixed glass fiber can descend and hold in the bucket 8, and wherein glass fiber can be blockked to the middle part that holds bucket 8 by the filter plate body 802 and the filter screen 803 on upper portion, and oxidation dihydric alcohol liquid can continue to descend and hold the bucket 8 bottom, and the two relies on second body 804 and third body 805 to transport to the external world, carries out recycle.
Although embodiments of the present invention have been shown and described, it will be appreciated by those skilled in the art that changes, modifications, substitutions and alterations can be made in these embodiments without departing from the principles and spirit of the invention, the scope of which is defined in the appended claims and their equivalents.
Claims (3)
1. A recovery unit for polyester resin waste accelerates degradation, includes shell body (1), its characterized in that: the front surface of the outer shell (1) is fixedly connected with a PLC (programmable logic controller) (2), a first flow channel (101) is formed on the upper portion of the inner side wall of the outer shell (1) in an integrated mode, a first motor support (102) is welded on the upper portion of the inner side wall of the outer shell (1), a first motor (3) is fixedly connected with the inner side wall of the first motor support (102), a cutting tool (4) is fixedly connected with an output shaft of the first motor (3), a second flow channel (103) is formed on the inner side wall of the outer shell (1) in an integrated mode, the outer surface of the second flow channel (103) is matched with the cutting tool (4), two first through holes (104) are symmetrically formed in two sides of the inner side wall of the outer shell (1), a first baffle disc (501) is fixedly connected to the lower surface of the first through holes (104), and a barrel body (6) is fixedly connected to the inner side wall of the outer shell (1), the inner side wall of the barrel body (6) is fixedly connected with an annular electric heating plate (7), two second through holes are symmetrically formed in two sides of the lower surface of the barrel body (6), a second baffle disc (1101) is fixedly connected to the lower surface of the second through holes, a containing shell (13) is fixedly connected to one side of the outer surface of the outer shell (1), a containing barrel (8) is fixedly connected to the lower portion of the inner side wall of the outer shell (1), a filtering plate body (802) is fixedly connected to the inner side wall of the containing barrel (8), a second motor support (801) is integrally formed in the middle of the inner side wall of the containing barrel (8), a second motor (9) is fixedly connected to the inner side wall of the second motor support (801), a fixed shell (14) is fixedly connected to the other side of the outer surface of the outer shell (1), and an evaporator (16) is fixedly connected to the upper portion of the inner side wall of the fixed shell (14), a third flow channel (1401) is integrally formed on the inner side wall of the fixed shell (14), a water outlet (1402) is integrally formed on the other side of the inner side wall of the fixed shell (14), and a blind hole is integrally formed on the rear surface of the barrel body (6);
the outer surface of the first baffle disc (501) is welded on a piston rod of the first electric push rod (5);
the outer surface of the second baffle disc (1101) is welded on a piston rod of a second electric push rod (11);
a water suction pump (12) is fixedly connected to the inner side wall of the accommodating shell (13), a water outlet port of the water suction pump (12) is fixedly connected with the inner side wall of the barrel body (6), and a first pipe body (1301) is integrally formed on the upper surface of the accommodating shell (13);
the inner side wall of the filtering plate body (802) is symmetrically and fixedly connected with four filter screens (803), a second pipe body (804) is integrally formed on the upper portion of the other side of the outer surface of the filtering plate body (802), and a third pipe body (805) is integrally formed on the lower portion of the other side of the outer surface of the filtering plate body (802);
an output shaft of the second motor (9) is fixedly connected with a stirrer (10);
a first air supply fan (15) is fixedly connected to the other side of the inner side wall of the fixed shell (14), the outer surface of the first air supply fan (15) is matched with the barrel body (6), and a second air supply fan (1601) is fixedly connected to the lower surface of the evaporator (16);
a fourth pipe body (1403) is integrally formed on the upper surface of the fixed shell (14), and the outer surface of the fourth pipe body (1403) is matched with the blind hole.
2. A recycling method of a recycling apparatus for polyester resin waste accelerated degradation as set forth in claim 1, comprising the steps of:
s1, firstly, pouring the polyester resin waste into the first flow channel (101), and starting the PLC (2);
s2, according to the control of the program of the PLC (2), the first motor (3) is started firstly to drive the cutting tool (4) to carry out cutting operation, and the waste materials are cut into particles; then, starting a first electric push rod (5) to control a first baffle disc (501) to open a first through hole (104) so as to enable waste particles to fall down;
s3, the falling waste particles are received by the barrel body (6), at the moment, the program of the PLC (2) controls the water suction pump (12) to guide the dihydric alcohol degradation liquid in the accommodating shell (13) into the barrel body (6), then the second motor (9) is started to drive the stirrer (10) to rotate, so that the waste particles soaked in the dihydric alcohol degradation liquid are fully absorbed, and meanwhile, the annular electric heating plate (7) is started to meet the heat requirement of the pyrolysis process;
s4, under the cooperation of the stirrer (10) and the annular electric heating plate (7), stirring and heating the waste particles for a period of time, fully degrading the polyester resin of the waste particles, and precipitating the polyester resin into glass fibers and oxidized dihydric alcohol; at the moment, the program of the PLC (2) controls a second electric push rod (11) to move a second baffle disc (1101) to open a second through hole, and the oxidized diol liquid mixed with the glass fiber is dropped into the containing barrel (8) under the action of gravity;
s5, in the process that the oxidized dihydric alcohol liquid mixed with the glass fibers descends to the containing barrel (8), the glass fibers are blocked to the middle of the containing barrel (8) by the filtering plate body (802) and the filtering screen (803) on the upper part, the oxidized dihydric alcohol liquid continuously descends to the bottom of the containing barrel (8), and the oxidized dihydric alcohol liquid are transported to the outside by the second pipe body (804) and the third pipe body (805) for recycling;
s6, under the pyrolysis process of the annular electric heating plate (7), polyester resin waste in the glycol degradation liquid volatilizes impurities to form pyrolysis gas, at the moment, the pyrolysis gas is conveyed to the fixed shell (14) under the action of a first gas conveying fan (15) controlled by a program of the PLC (2), at the moment, the evaporator (16) and a second gas conveying fan (1601) start to work, and the pyrolysis gas is absorbed into the evaporator (16) to carry out a fraction process; under the action of the distillate, the pyrolysis gas is decomposed into thermal non-condensable gas and water containing impurities in the polyester resin waste, wherein the water flows to a water outlet (1402) through a third flow channel (1401) under the action of gravity and is received by the outside; and the hot non-condensable gas is connected into the interior of the barrel body (6) through the fourth pipe body (1403) to provide partial heat for the pyrolysis process in the barrel body.
3. The recycling method of the recycling apparatus for polyester resin waste accelerated degradation according to claim 2, wherein: in S3, the glycol degradation liquid in the receiving case (13) is stored by external infusion through the first tube (1301).
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| DE2442387C3 (en) * | 1974-09-04 | 1981-09-10 | Bayer Ag, 5090 Leverkusen | Process for the continuous hydrolytic breakdown of hydrolyzable plastic waste |
| JP2701012B2 (en) * | 1994-06-21 | 1998-01-21 | 和歌山県 | Recycling method and recycling equipment for unsaturated polyester resin waste |
| DE19811280C2 (en) * | 1998-03-12 | 2002-06-27 | Inventa Fischer Gmbh | Method and device for the recovery of linear polyester |
| CN109134833B (en) * | 2018-07-09 | 2020-12-01 | 黄山市华圣新材料有限公司 | Improved polyester resin and preparation method and preparation device thereof |
| CN109575358B (en) * | 2018-12-18 | 2022-02-18 | 中国石油天然气集团有限公司 | Waste polyester film recovery device and method |
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