CN112454749A - Plastic particle crushing device - Google Patents
Plastic particle crushing device Download PDFInfo
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- CN112454749A CN112454749A CN202011229566.3A CN202011229566A CN112454749A CN 112454749 A CN112454749 A CN 112454749A CN 202011229566 A CN202011229566 A CN 202011229566A CN 112454749 A CN112454749 A CN 112454749A
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- 229920003023 plastic Polymers 0.000 title claims abstract description 68
- 239000004033 plastic Substances 0.000 title claims abstract description 68
- 239000002245 particle Substances 0.000 title claims abstract description 44
- 239000000463 material Substances 0.000 claims abstract description 63
- 238000005520 cutting process Methods 0.000 claims abstract description 44
- 238000001125 extrusion Methods 0.000 claims abstract description 10
- 238000010008 shearing Methods 0.000 claims abstract description 7
- 238000003825 pressing Methods 0.000 claims description 17
- 229920000426 Microplastic Polymers 0.000 claims description 6
- 239000000956 alloy Substances 0.000 claims description 5
- 239000000919 ceramic Substances 0.000 claims description 4
- 239000013072 incoming material Substances 0.000 claims description 4
- 229910000851 Alloy steel Inorganic materials 0.000 claims description 3
- 229910045601 alloy Inorganic materials 0.000 claims description 3
- 238000005452 bending Methods 0.000 claims description 3
- 238000007873 sieving Methods 0.000 claims description 3
- 230000000694 effects Effects 0.000 abstract description 9
- 230000008901 benefit Effects 0.000 abstract description 4
- 238000000034 method Methods 0.000 description 6
- 239000002699 waste material Substances 0.000 description 6
- 230000008569 process Effects 0.000 description 4
- 230000009471 action Effects 0.000 description 2
- 238000005516 engineering process Methods 0.000 description 2
- 238000004064 recycling Methods 0.000 description 2
- 230000008929 regeneration Effects 0.000 description 2
- 238000011069 regeneration method Methods 0.000 description 2
- 230000004075 alteration Effects 0.000 description 1
- 238000010924 continuous production Methods 0.000 description 1
- 230000008602 contraction Effects 0.000 description 1
- 238000010586 diagram Methods 0.000 description 1
- 238000007599 discharging Methods 0.000 description 1
- 238000003912 environmental pollution Methods 0.000 description 1
- 239000012634 fragment Substances 0.000 description 1
- 239000008187 granular material Substances 0.000 description 1
- 238000005469 granulation Methods 0.000 description 1
- 230000003179 granulation Effects 0.000 description 1
- 238000001746 injection moulding Methods 0.000 description 1
- 238000012986 modification Methods 0.000 description 1
- 230000004048 modification Effects 0.000 description 1
- 238000005192 partition Methods 0.000 description 1
- 230000002035 prolonged effect Effects 0.000 description 1
- 230000001681 protective effect Effects 0.000 description 1
- 238000012216 screening Methods 0.000 description 1
- 238000000926 separation method Methods 0.000 description 1
- 239000000243 solution Substances 0.000 description 1
Images
Classifications
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- B—PERFORMING OPERATIONS; TRANSPORTING
- B29—WORKING OF PLASTICS; WORKING OF SUBSTANCES IN A PLASTIC STATE IN GENERAL
- B29B—PREPARATION OR PRETREATMENT OF THE MATERIAL TO BE SHAPED; MAKING GRANULES OR PREFORMS; RECOVERY OF PLASTICS OR OTHER CONSTITUENTS OF WASTE MATERIAL CONTAINING PLASTICS
- B29B17/00—Recovery of plastics or other constituents of waste material containing plastics
- B29B17/04—Disintegrating plastics, e.g. by milling
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- B—PERFORMING OPERATIONS; TRANSPORTING
- B29—WORKING OF PLASTICS; WORKING OF SUBSTANCES IN A PLASTIC STATE IN GENERAL
- B29B—PREPARATION OR PRETREATMENT OF THE MATERIAL TO BE SHAPED; MAKING GRANULES OR PREFORMS; RECOVERY OF PLASTICS OR OTHER CONSTITUENTS OF WASTE MATERIAL CONTAINING PLASTICS
- B29B17/00—Recovery of plastics or other constituents of waste material containing plastics
- B29B17/04—Disintegrating plastics, e.g. by milling
- B29B2017/0424—Specific disintegrating techniques; devices therefor
- B29B2017/0476—Cutting or tearing members, e.g. spiked or toothed cylinders or intermeshing rollers
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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
- Y02W30/52—Mechanical processing of waste for the recovery of materials, e.g. crushing, shredding, separation or disassembly
-
- 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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- Engineering & Computer Science (AREA)
- Environmental & Geological Engineering (AREA)
- Mechanical Engineering (AREA)
- Crushing And Pulverization Processes (AREA)
Abstract
The invention discloses a crushing device for plastic particles, which comprises a primary crushing cavity and a secondary crushing cavity, wherein the primary crushing cavity is a semi-closed cavity and is provided with an oblique feeding hole, a primary crushing cavity is internally provided with a coarse crushing device and a crushing jaw, the upper part of the coarse crushing device is provided with a pressure plate, and the coarse crushing device is an extrusion type crushing roller set or a shearing type coarse crushing roller set; and the discharge hole of the primary crushing cavity is connected with the secondary crushing cavity through a feeding sleeve with an auger and a sieve plate, a material passing channel is arranged in the secondary crushing cavity, and secondary crushing processing is carried out in the material passing channel by taking a plurality of snakelike cutting roller units on the material passing channel as a fine crushing device. The plastic particle crusher has the advantage of good crushing effect, and can be used for solving the problem of poor crushing effect of the existing crusher and reducing the qualified rate of plastic particles.
Description
Technical Field
The invention relates to relevant equipment in the plastic recycling technology, in particular to a plastic particle crushing device for continuous production.
Background
Plastic materials play an increasingly important role in human society and in productive life. The excessive use of plastics not only brings about increasingly serious environmental pollution problem, but also causes a great deal of resource waste. However, the performance of the plastic material of most plastic products, particularly a large number of disposable plastic products, is not greatly changed after the plastic products are used, so that the technology for recycling and utilizing the waste plastic which is re-processed into the plastic products by a proper method and is reused has great social and ecological significance and great economic benefit.
At present, waste plastics are recycled mainly by crushing the waste plastics and then are reused, and the existing crushing mode mainly comprises the steps of crushing the crushed waste plastics and plant plastic scraps by using plastic crushing equipment, and performing regeneration processing on the plastics after the crushed waste plastics and the plant plastic scraps are crushed into particles with proper sizes. The plastic crushing equipment is mainly used for crushing various plastic plastics and rubber, such as plastic profiles, pipes, rods, silk threads, plastic toys or other plastic products, granules obtained after crushing by the crusher can be directly used by an extruder or injection molding, and can also be regenerated and reused by basic granulation, and various plastic crushing devices in the prior art generally have the problems of low crushing efficiency, insufficient crushing degree and large fragment volume, are poor in crushing uniformity, easily meet the requirements on the crushing degree of partial regions, and are insufficient in the crushing degree of partial regions, so that partial energy efficiency of the crushing equipment is idle and idle; the situation that large plastic blocks are mixed in the broken plastic particles is easy to occur, the broken plastic particles need to be manually screened, the plastic particles with unqualified sizes are screened out and then broken again, the operation is very troublesome, and the requirement on the labor intensity of workers is high.
Therefore, a new technical solution is needed to solve these problems.
Disclosure of Invention
The present invention provides a plastic particle crushing device to solve the above-mentioned drawbacks in the prior art.
The technical problem solved by the invention is realized by adopting the following technical scheme:
the crushing device for the plastic particles comprises a primary crushing cavity and a secondary crushing cavity;
the primary crushing cavity is a semi-closed cavity, the top surface of the primary crushing cavity is closed, an inclined feeding hole is formed in one side or two sides of the top surface, a coarse crushing device and a crushing jaw are arranged in the primary crushing cavity, and the coarse crushing device is an extrusion type crushing roller set or a shearing type coarse crushing roller set; a material pressing plate is arranged at the upper part of the coarse crushing device, a material pressing shaft is connected to the upper part of the material pressing plate, the upper part of the material pressing shaft extends out of the crushing cavity, and is externally connected with a hydraulic element or a motor to drive the material pressing shaft to lift;
an inner neck is arranged at the lower part of the coarse crushing device, the lower part of the inner neck is opposite to a crushing area of the crushing jaw, the crushing jaw comprises two arc-shaped jaw plates which are arranged oppositely, the arc-shaped jaw plates are connected with a swing arm and are externally connected with a driving motor through the swing arm to drive the arc-shaped jaw plates to perform arc reciprocating driving, and crushing teeth are formed on crushing surfaces of the arc-shaped jaw plates;
the primary crushing cavity is provided with a discharge port at the lower part of the crushing jaw, the discharge port is connected with a feeding sleeve, an auger is arranged in the feeding sleeve to serve as a crushing material pushing structure, a sieve plate for sieving plastic particles with qualified particle sizes and plastic particles with unqualified particle sizes is arranged on the bottom surface of the feeding sleeve, and a collecting hopper arranged along the length direction of the sieve plate is arranged below the sieve plate;
the feeding device comprises a feeding sleeve, a secondary crushing cavity, a material passing channel, a fine crushing device, a plurality of cutting roller units and a driving motor, wherein the feeding sleeve is arranged in the secondary crushing cavity; the roller sleeve is uniformly provided with a sharp-pointed crushing blade; the cutting roller units are arranged on the material passing channel in an S shape, and the sharp-pointed crushing edges between adjacent cutting roller units are meshed in a staggered mode.
As a further limitation, the length of the inclined feed port is 120-160 cm, and the inner diameter is 40-60 cm. And the inclined feed inlet is provided with an elevation angle with an inclination angle larger than 40 degrees.
As a further limitation, a material pushing wheel is arranged at the connecting position of the inclined feeding hole and the primary crushing cavity, a wheel shaft of the material pushing wheel extends out of the inclined feeding hole at the outer side and is connected with a manual rocking handle or a driving motor to serve as a driving device, and the material clamped in the inclined feeding hole can continuously enter the primary crushing cavity by driving the material pushing wheel through the driving device.
As a further limitation, the extrusion type crushing roller group comprises two crushing roller units which are oppositely arranged, the crushing roller units are consistent in size and comprise roller shafts and roller surfaces, the outer sides of the roller shafts extend out of a primary crushing cavity, and a driving motor is externally connected outside the primary crushing cavity and serves as a driving device; and the hard alloy roll surface of the roll surface is fixed on the roll shaft, and the roll surface is provided with an uneven surface so as to extrude and crush incoming materials entering the primary crushing cavity.
As a further limitation, the shearing type rough crushing roller group comprises two crushing roller units which are oppositely arranged, wherein each crushing roller unit has a large size and a small size and comprises a roller shaft and a roller surface, the outer side of the roller shaft extends out of a primary crushing cavity, and a driving motor is externally connected outside the primary crushing cavity and serves as a driving device; and evenly be provided with the cutting edge on the roll surface, the length of the cutting edge of big crushing roller unit and the length of the cutting edge of little crushing roller unit are than with the diameter's of big crushing roller unit and little crushing roller unit ratio unanimous, and the cutting edge of big crushing roller unit and the cutting edge dislocation set of little crushing roller unit are in order to carry out the cutting breakage to the supplied materials that gets into in broken chamber once.
As a further limitation, the spacing between oppositely disposed cambered jaws in the crushing jaws is adjustable.
As a further limitation, the length of the feeding sleeve is 3-5 m, and a downward inclination angle of 8-10 degrees is kept between the feeding sleeve and the horizontal plane.
As a further limitation, the blade surface of the tip crushing blade is formed by hard alloy steel with the hardness of HRA 89-92 and the bending strength of more than 2000 MPa.
As a further limitation, the roller sleeve of the cutting roller unit is uniformly provided with a tool apron, and the tip crushing blade is detachably assembled on the tool apron so as to be detached and replaced when the tip crushing blade fails in crushing, so that the crushing effect of the fine crushing device is ensured.
By way of further limitation, the wall of each of the primary crushing cavity and the secondary crushing cavity is lined with a wear-resistant ceramic lining to protect the wall of the primary crushing cavity and the wall of the secondary crushing cavity against wear.
Has the advantages that: the plastic particle crushing device disclosed by the invention is compact in structure, higher in continuity and stability of crushing plastic particles and good in crushing effect, especially has an effective crushing rate (namely the proportion of the recycled plastic particles to the plastic particles meeting the secondary processing requirement) of the plastic particles made of hard plastic materials such as ABS, POM and PC with higher Rockwell hardness of more than 99.5%, and has an effective crushing rate of other plastic particles made of medium-hardness plastic materials or soft plastic materials of more than 95%, and the plastic particles can be directly used in the subsequent plastic regeneration processing process flow, so that the screening workload of operation workers can be effectively reduced, the working efficiency is effectively improved, and the working time limit is greatly shortened. Meanwhile, the continuity is good and the stability is high in the crushing process, and in the whole crushing process, plastic particles are not easy to accumulate in the cavity due to pressure, so that the related manual intervention is reduced.
Drawings
Fig. 1 is a schematic structural diagram of a preferred embodiment of the present invention.
Wherein: 1. an oblique feeding hole; 2. a material pushing wheel; 3. a material pressing plate; 4. a material pressing shaft; 5. a primary crushing chamber; 6. a roll shaft; 7. a small crushing roller unit; 8. a large crushing roller unit; 9. an intracavity divider liner; 10. a first crushing chamber housing; 11. adduction of the neck; 12. a cutting edge; 13. a right cambered surface jaw plate; 14. a left cambered surface jaw plate; 15. a jaw plate body; 16. crushing teeth; 17. a first discharge port; 18. a feeding sleeve; 19. a screw conveyor; 20. a first collection hopper; 21. a sieve plate; 22. a second crushing chamber housing; 23. a secondary crushing cavity; 24. a cutting roller unit; 25. a cutting roll shaft; 26. a tip crushing blade; 27. a second discharge port; 28. a second collection hopper.
Detailed Description
In order to make the technical means, the creation characteristics, the achievement purposes and the effects of the invention easy to understand, the invention is further explained below by combining the specific drawings.
In the present examples, it should be understood that the following detailed description is illustrative of the invention only and is not intended to limit the scope of the invention. It should be noted that the terms "front," "back," "left," "right," "upper" and "lower" used in the following description refer to directions in the drawings, and the terms "inner" and "outer" refer to directions toward and away from, respectively, the geometric center of a particular component.
In this embodiment, a part of the equipment requiring external power is not shown in the figure, and the external power source is not represented to be absent from the power equipment, but in the case that the equipment normally operates, a person skilled in the art knows which power source the equipment should be matched with to achieve the state of normal operation, and the configuration of the power source has no innovative meaning and effect, and thus is not particularly shown in the figure.
In this embodiment, the staggered arrangement means that the cutting edges 12 provided on the roll surface corresponding to the large crushing roll unit 8 or the small crushing roll unit 7 are arranged in groups on the roll surface ring surface, and the cutting edges 12 arranged in groups are arranged at intervals in the axial direction of the roll surface, for example, the cutting edge groups correspondingly arranged in the axial direction of the large crushing roll unit 8 are arranged on the first and third … … N (N is the number greater than three) mounting positions in the axial direction, and the cutting edge groups correspondingly arranged in the axial direction of the crushing roll unit 7 are arranged on the second and fourth … … N +1(N is the number greater than three) mounting positions in the axial direction, so that when the large crushing roll unit 8 or the small crushing roll unit 7 relatively rotates, the cutting edges 12 on the large crushing roll unit 8 and the small crushing roll unit 7 do not mutually affect each other. The same applies to the adjacently disposed cutting roller units 24 and the tip crushing edges 26 on the cutting roller units 24.
Referring to fig. 1, a preferred embodiment of a plastic particle crushing device includes a first crushing chamber shell 10 and a second crushing chamber shell 22, the first crushing chamber shell 10 is connected with a feed inlet of the second crushing chamber shell 22 at a discharge port position through a feed sleeve 18, a primary crushing chamber 5 is correspondingly arranged in the first crushing chamber shell 10, a secondary crushing chamber 23 is correspondingly arranged in the second crushing chamber shell 22, and wear-resistant ceramic linings are lined on chamber walls of the primary crushing chamber 5 and the secondary crushing chamber 23 to protect the chamber walls against wear.
In this embodiment, the first crushing chamber shell 10 is a semi-closed shell, one side of the upper part of the first crushing chamber shell is provided with an inclined feed port 1, the inclined feed port 1 is arranged in an inclined manner, a 45-degree included angle is kept between the inclined feed port 1 and a plane of the feed port corresponding to the first crushing chamber shell 10, the inner diameter of the inclined feed port 1 is 50cm to facilitate material dumping, and the length of the inclined feed port 1 is 130cm to prevent the material from being ejected from the inclined feed port 1 to cause damage when the coarse crushing device performs crushing; and a material pushing wheel 2 is arranged at the bottom of the oblique material inlet 1 corresponding to the connecting position with the first crushing cavity shell 10, a wheel shaft of the material pushing wheel 2 extends out of the oblique material inlet at the outer side and is connected with a driving motor to serve as a driving device, a shifting arm is uniformly arranged on the wheel surface of the material pushing wheel 2, the shifting arm is driven by the rotation of the material pushing wheel 2, the material entering the oblique material inlet 1 is shifted, and the material is prevented from being detained in the oblique material inlet 1.
A primary crushing cavity 1 is arranged in a first crushing cavity shell 10, the primary crushing cavity 1 is separated into an upper cavity and a lower cavity through an inner cavity separation lining 9 arranged in the first crushing cavity shell 10, a pressure plate 3 and a coarse crushing device are arranged in the upper cavity, a crushing jaw is arranged in the lower cavity, and the upper cavity and the lower cavity are connected through an inner contraction neck 11.
The pressing plate 3 is a flat plate body, the cross section of the pressing plate is matched with that of the upper cavity, a layer of wear-resistant ceramic lining plate is formed on the surface of the plate body, the pressing shaft 4 extending out of the first crushing cavity shell 10 is externally connected with a driving motor on the pressing plate 3, the pressing shaft 4 is controlled to lift and fall through the operation of the driving motor, the material in the primary crushing cavity 5 is pressed, and the material is forcedly crushed for the first time through a coarse crushing device. And rough breaker can be extrusion type crushing roller set or shearing type rough breaking roller set, and wherein, the major mode of shearing type rough breaking roller set when broken handle is the shearing, therefore has the treatment effect of preferred when it handles the plastic granules of low rigidity, and the major mode of extrusion type crushing roller set when broken handle is the extrusion breakage, therefore has the treatment effect of preferred when extrusion type crushing roller set is to the plastic granules of well high rigidity. In this embodiment, the rough crushing apparatus is a shear type rough crushing roller group, which includes a small crushing roller unit 7 and a large crushing roller unit 8 that are oppositely disposed, the small crushing roller unit 7 and the large crushing roller unit 8 are similar in structure, the difference is that the ratio of the two sizes is 10:7, the small crushing roller unit 7 and the large crushing roller unit 8 both comprise a roller shaft 6 and a roller surface, the outer side of the roll shaft 6 extends out of a first crushing cavity shell 10, a driving motor is externally connected to the outer side of the first crushing cavity shell 10 to be used as a driving device, and cutting edges 12 are provided on the roll surfaces corresponding to the small crushing roll unit 7 and the large crushing roll unit 8, the cutting edge of the large crushing roll unit 8 is arranged in a staggered manner with the cutting edge of the small crushing roll unit 7, and when the relative rotation is carried out through the driving of a corresponding driving motor, the incoming materials entering the primary crushing cavity 5 are cut and crushed.
In another embodiment, when the rough crushing device adopts an extrusion type crushing roller group, the extrusion type crushing roller group comprises two crushing roller units which are oppositely arranged, the sizes of the two crushing roller units are consistent, the two crushing roller units comprise a roller shaft 6 and a roller surface, the roller shaft 6 of the roller shaft also extends out of the first crushing cavity shell 10 at the outer side, and a driving motor is externally connected to the outer side of the first crushing cavity shell 10 to serve as a driving device; and the hard alloy roll surface of the roll surface is fixed on the roll shaft and is provided with an uneven surface so as to extrude and crush incoming materials entering the primary crushing cavity.
The crushing jaw arranged in the lower cavity comprises a right arc jaw 13 and a left arc jaw 14 which are oppositely arranged and have adjustable intervals, the right arc jaw 13 and the left arc jaw 14 both comprise fan-shaped jaw bodies 15, crushing teeth formed by hard alloy materials are formed on the surfaces of the jaw bodies 15, the jaw bodies 15 of the right arc jaw 13 and the left arc jaw 14 are respectively and independently connected with a rotating shaft, the rotating shaft extends out of the first crushing cavity shell 10 and is connected with a driving motor through a swing arm outside the first crushing cavity shell 10, the right arc jaw 13 and the left arc jaw 14 swing back and forth through respective driving motors and swing arms, and the swing directions of the right arc jaw 13 and the left arc jaw 14 are always the same so as to ensure that the right arc jaw 13 and the left arc jaw 14 keep axial symmetry at the position corresponding to the jaw; the bottom of the lower cavity is provided with a first discharge hole 17, the lower portion of the first discharge hole 17 is connected with a feeding sleeve 18, the length of the feeding sleeve 18 is 3-5 m, a depression angle which is inclined downwards by 8 degrees is kept between the feeding sleeve 18 and the horizontal plane, the upper surface of the feeding sleeve 18 is closed, a sieve plate 21 used for sieving plastic particles with qualified particle sizes and plastic particles with unqualified particle sizes is arranged on the lower surface of the feeding sleeve 18, an auger 19 which is arranged in the feeding sleeve 18 serves as a crushing material pushing structure to send the plastic particles with the unqualified particle sizes which are not sieved by the sieve plate 21 in the feeding sleeve 18 into a corresponding secondary crushing cavity 23 in a second crushing cavity shell 22, and the sieved plastic particles with the unqualified particle sizes fall from the sieve plate 21 and fall into a first collecting hopper 20.
In this embodiment, a secondary crushing cavity 23 is partitioned in the second crushing cavity shell 22 by a cavity partition lining 9 arranged in the second crushing cavity shell 22, the secondary crushing cavity 23 is of a vertical cavity structure and is a material passing channel of the cavity structure, four cutting roller units 24 are arranged in the secondary crushing cavity 23 in an S shape, the four cutting roller units 24 of the secondary crushing cavity 23 are used as fine crushing devices, the four cutting roller units 24 are consistent in structure and respectively comprise a cutting roller shaft 25 and a roller sleeve, the cutting roller shaft 25 extends out of the second crushing cavity shell 22 at the outer side and is externally connected with a driving motor, tool holders are uniformly arranged on the roller sleeves of the cutting roller units 24, tip crushing blades 26 formed by hard alloy materials are detachably assembled on the tool holders, the tip crushing blades between adjacent cutting roller units 24 are meshed in a staggered manner, and in order to ensure the processing effect of the tip crushing blades 26, the blade face of the tip crushing blade 26 is formed by hard alloy steel with the hardness of HRA92 and the bending strength of more than 2000 MPa.
When the plastic material crusher is used, firstly, plastic materials to be crushed are added from the inclined feeding hole 1, the plastic materials enter the primary crushing cavity 5 through the inclined feeding hole 1, primary coarse crushing is carried out by attaching the plastic materials to the coarse crushing device under the action of the pressure plate 3, the crushed materials after the coarse crushing are gathered through the inner neck 11 and fall to the position of the crushing jaw, secondary crushing is carried out through the relative movement of the right cambered jaw 13 and the left cambered jaw 14 in the crushing jaw, the crushing effective rate (the ratio of plastic particles which are crushed to meet the secondary processing requirement and are recycled) of the materials after the primary coarse crushing and the secondary crushing can basically reach more than 85 percent, at the moment, the crushed materials enter the feeding sleeve pipe 18 through the first discharging hole 17, wherein most of the crushed materials are sieved on the sieve plate 21 through the action of pressure in the advancing process of the feeding sleeve pipe 18, the crushed materials are pushed into a secondary crushing cavity 23 through an auger 19 and are finely crushed through a cutting roller unit 24 in the secondary crushing cavity 23, the crushing mode can effectively improve the crushing rate, meanwhile, the amount of the residual uncrushed materials after the materials subjected to primary coarse crushing and secondary crushing are sieved through a feeding sleeve 18 is small, the working pressure of the cutting roller unit 24 can be greatly reduced, the service life of a sharp-end crushing blade 26 with high cost is prolonged, the materials processed through the cutting roller unit 24 enter a second collecting hopper 28 through a second discharge hole 27 formed in the bottom of a second crushing cavity shell 22, and the materials in the second collecting hopper 28 and the first collecting hopper 20 are combined and then enter the next processing procedure.
The foregoing shows and describes the general principles, essential features, and advantages of the invention. It will be understood by those skilled in the art that these examples are for illustrative purposes only and are not intended to limit the scope of the present invention. Further, it should also be understood that various alterations, modifications and/or variations can be made to the present invention by those skilled in the art after reading the technical content of the present invention, and all such equivalents fall within the protective scope defined by the claims of the present application.
Claims (10)
1. The plastic particle crushing device is characterized by comprising a primary crushing cavity and a secondary crushing cavity;
the primary crushing cavity is a semi-closed cavity, the top surface of the primary crushing cavity is closed, an inclined feeding hole is formed in one side or two sides of the top surface, a coarse crushing device and a crushing jaw are arranged in the primary crushing cavity, and the coarse crushing device is an extrusion type crushing roller set or a shearing type coarse crushing roller set; a material pressing plate is arranged at the upper part of the coarse crushing device, a material pressing shaft is connected to the upper part of the material pressing plate, the upper part of the material pressing shaft extends out of the crushing cavity, and is externally connected with a hydraulic element or a motor to drive the material pressing shaft to lift;
an inner neck is arranged at the lower part of the coarse crushing device, the lower part of the inner neck is opposite to a crushing area of the crushing jaw, the crushing jaw comprises two arc-shaped jaw plates which are arranged oppositely, the arc-shaped jaw plates are connected with a swing arm and are externally connected with a driving motor through the swing arm to drive the arc-shaped jaw plates to perform arc reciprocating driving, and crushing teeth are formed on crushing surfaces of the arc-shaped jaw plates;
the primary crushing cavity is provided with a discharge port at the lower part of the crushing jaw, the discharge port is connected with a feeding sleeve, an auger is arranged in the feeding sleeve to serve as a crushing material pushing structure, a sieve plate for sieving plastic particles with qualified particle sizes and plastic particles with unqualified particle sizes is arranged on the bottom surface of the feeding sleeve, and a collecting hopper arranged along the length direction of the sieve plate is arranged below the sieve plate;
the feeding device comprises a feeding sleeve, a secondary crushing cavity, a material passing channel, a fine crushing device, a plurality of cutting roller units and a driving motor, wherein the feeding sleeve is arranged in the secondary crushing cavity; the roller sleeve is uniformly provided with a sharp-pointed crushing blade; the cutting roller units are arranged on the material passing channel in an S shape, and the sharp-pointed crushing edges between adjacent cutting roller units are meshed in a staggered mode.
2. The plastic particle crushing device as claimed in claim 1, wherein the length of the inclined feed port is 120-160 cm, and the inner diameter is 40-60 cm; and the inclined feed inlet is provided with an elevation angle with an inclination angle larger than 40 degrees.
3. The plastic particle crushing device as claimed in claim 1, wherein a pushing wheel is arranged at a connecting position of the inclined feeding hole and the primary crushing cavity, a wheel shaft of the pushing wheel extends out of the inclined feeding hole at the outer side, and is connected with a manual rocking handle or a driving motor as a driving device, and the material clamped in the inclined feeding hole can continuously enter the primary crushing cavity by driving the pushing wheel through the driving device.
4. The plastic particle crushing device as claimed in claim 1, wherein the crushing roller group comprises two crushing roller units which are oppositely arranged, the crushing roller units are consistent in size and comprise roller shafts and roller surfaces, the outer sides of the roller shafts extend out of the primary crushing cavity, and a driving motor is externally connected outside the primary crushing cavity as a driving device; and the hard alloy roll surface of the roll surface is fixed on the roll shaft, and the roll surface is provided with an uneven surface so as to extrude and crush incoming materials entering the primary crushing cavity.
5. The plastic pellet breaker apparatus of claim 1 wherein said shear type rough breaker roller set comprises two breaker roller units disposed oppositely, said breaker roller units being large and small, and each comprising a roller shaft and a roller surface, said roller shaft extending outwardly of said primary breaker chamber and being externally connected to a drive motor as a drive means; and evenly be provided with the cutting edge on the roll surface, the length of the cutting edge of big crushing roller unit and the length of the cutting edge of little crushing roller unit are than with the diameter's of big crushing roller unit and little crushing roller unit ratio unanimous, and the cutting edge of big crushing roller unit and the cutting edge dislocation set of little crushing roller unit are in order to carry out the cutting breakage to the supplied materials that gets into in broken chamber once.
6. A crushing plant for plastic granules according to claim 1, characterised in that the distance between the oppositely arranged jaws in the crushing jaws is adjustable.
7. A crushing device for plastic particles according to claim 1, wherein the length of the feeding sleeve is 3-5 m, and a downward angle of 8-10 degrees is kept with the horizontal plane.
8. The plastic particle crushing device as claimed in claim 1, wherein the blade face of the pointed crushing edge is formed by hard alloy steel with hardness HRA 89-92 and bending strength > 2000 MPa.
9. A crushing apparatus for plastic granules according to claim 1, wherein a tool holder is uniformly provided on a sleeve of the cutting roll unit, and the pointed crushing blade is detachably fitted on the tool holder.
10. The plastic pellet breaker apparatus of claim 1 wherein the walls of said primary breaking chamber and said secondary breaking chamber are lined with wear resistant ceramic liners to protect the walls against wear.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN202011229566.3A CN112454749A (en) | 2020-11-06 | 2020-11-06 | Plastic particle crushing device |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN202011229566.3A CN112454749A (en) | 2020-11-06 | 2020-11-06 | Plastic particle crushing device |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| CN112454749A true CN112454749A (en) | 2021-03-09 |
Family
ID=74826746
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN202011229566.3A Pending CN112454749A (en) | 2020-11-06 | 2020-11-06 | Plastic particle crushing device |
Country Status (1)
| Country | Link |
|---|---|
| CN (1) | CN112454749A (en) |
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Application publication date: 20210309 |