CN115008638A - Environment-friendly plastic particle magnetic separation and recovery treatment equipment and separation method - Google Patents
Environment-friendly plastic particle magnetic separation and recovery treatment equipment and separation method Download PDFInfo
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- CN115008638A CN115008638A CN202210396544.9A CN202210396544A CN115008638A CN 115008638 A CN115008638 A CN 115008638A CN 202210396544 A CN202210396544 A CN 202210396544A CN 115008638 A CN115008638 A CN 115008638A
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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
- B29B17/02—Separating plastics from other materials
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- B—PERFORMING OPERATIONS; TRANSPORTING
- B03—SEPARATION OF SOLID MATERIALS USING LIQUIDS OR USING PNEUMATIC TABLES OR JIGS; MAGNETIC OR ELECTROSTATIC SEPARATION OF SOLID MATERIALS FROM SOLID MATERIALS OR FLUIDS; SEPARATION BY HIGH-VOLTAGE ELECTRIC FIELDS
- B03C—MAGNETIC OR ELECTROSTATIC SEPARATION OF SOLID MATERIALS FROM SOLID MATERIALS OR FLUIDS; SEPARATION BY HIGH-VOLTAGE ELECTRIC FIELDS
- B03C1/00—Magnetic separation
- B03C1/005—Pretreatment specially adapted for magnetic separation
- B03C1/01—Pretreatment specially adapted for magnetic separation by addition of magnetic adjuvants
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- B—PERFORMING OPERATIONS; TRANSPORTING
- B03—SEPARATION OF SOLID MATERIALS USING LIQUIDS OR USING PNEUMATIC TABLES OR JIGS; MAGNETIC OR ELECTROSTATIC SEPARATION OF SOLID MATERIALS FROM SOLID MATERIALS OR FLUIDS; SEPARATION BY HIGH-VOLTAGE ELECTRIC FIELDS
- B03C—MAGNETIC OR ELECTROSTATIC SEPARATION OF SOLID MATERIALS FROM SOLID MATERIALS OR FLUIDS; SEPARATION BY HIGH-VOLTAGE ELECTRIC FIELDS
- B03C1/00—Magnetic separation
- B03C1/02—Magnetic separation acting directly on the substance being separated
- B03C1/16—Magnetic separation acting directly on the substance being separated with material carriers in the form of belts
- B03C1/22—Magnetic separation acting directly on the substance being separated with material carriers in the form of belts with non-movable magnets
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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
- B29B17/02—Separating plastics from other materials
- B29B2017/0213—Specific separating techniques
- B29B2017/0217—Mechanical separating techniques; devices therefor
- B29B2017/0234—Mechanical separating techniques; devices therefor using gravity, e.g. separating by weight differences in a wind sifter
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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
- B29B17/02—Separating plastics from other materials
- B29B2017/0213—Specific separating techniques
- B29B2017/0255—Specific separating techniques using different melting or softening temperatures of the materials to be separated
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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
- B29B17/02—Separating plastics from other materials
- B29B2017/0213—Specific separating techniques
- B29B2017/0268—Separation of metals
- B29B2017/0272—Magnetic separation
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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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- Engineering & Computer Science (AREA)
- Environmental & Geological Engineering (AREA)
- Mechanical Engineering (AREA)
- Processing And Handling Of Plastics And Other Materials For Molding In General (AREA)
Abstract
The invention discloses environment-friendly plastic particle magnetic separation and recovery processing equipment, which comprises a mixing device, a hot melting device and a magnetic separation device, wherein the mixing device is arranged on the mixing device; the mixing device is used for mixing sand grains containing plastic particles with a large amount of ferromagnetic particles to form mixed gravel and conveying the mixed gravel to the hot melting device; the hot melting device is used for melting the surface of the plastic particles in the mixed gravel to form sand-plastic-ferromagnetic particle aggregates, and conveying the mixed gravel containing the sand-plastic-ferromagnetic particle aggregates to the magnetic separation device; the magnetic separation device is used for sequentially separating sand-plastic-ferromagnetic particle aggregates, ferromagnetic particles and sand from the mixed gravel containing the sand-plastic-ferromagnetic particle aggregates; the invention realizes the recovery of plastic particles, does not need water resources, effectively avoids secondary pollution and can realize the separation and recovery of the plastic particles with density higher than that of water.
Description
Technical Field
The invention relates to an environment-friendly plastic particle magnetic separation and recovery treatment device.
Background
The beach playing place is often discarded by the visitor with a large amount of plastic products, and these plastic products can be broken up under the natural decomposition effect and have a large amount of tiny plastic particles, and tiny plastic particles and sand grain mix together, have caused serious pollution to the beach likewise.
In order to separate plastic particles mixed in sand particles, a flotation method is adopted to separate micro plastic particles from the sand particles at present, but a large amount of water is needed, so that secondary pollution is caused, and the micro plastic particles with the density larger than that of water cannot be separated by the flotation method, so that the separation effect is poor.
Disclosure of Invention
The invention aims to overcome the defects and provide environment-friendly plastic particle magnetic separation and recovery treatment equipment.
In order to achieve the purpose, the invention adopts the following specific scheme:
an environment-friendly plastic particle magnetic separation and recovery processing device comprises a mixing device, a hot melting device and a magnetic separation device;
the mixing device is used for mixing sand grains containing plastic particles with a large amount of ferromagnetic particles to form mixed gravel and conveying the mixed gravel to the hot melting device;
the hot melting device is arranged above the mixing device and is used for melting the surface of the plastic particles in the mixed gravel to form sand-plastic-ferromagnetic particle aggregates and conveying the mixed gravel containing the sand-plastic-ferromagnetic particle aggregates to the magnetic separation device;
the magnetic separation device is arranged below the hot melting device and used for sequentially separating sand grains, plastic and ferromagnetic grain aggregates, ferromagnetic grains and sand grains from mixed gravel containing the sand grains, plastic and ferromagnetic grain aggregates.
The magnetic separation device further comprises a separation groove, a first conveyor belt, a first electromagnet, a second electromagnet, a first discharge groove, a second discharge groove and a first motor;
first vibration feeding blocks are uniformly distributed on the outer bottom of the separation tank along the direction from the feeding end to the discharging end; the first conveyor belt is arranged in the separation groove, and a first gap is formed between the bottom surface of the first conveyor belt and the inner bottom of the separation groove; the first electromagnet and the second electromagnet are fixed in the separation tank side by side and positioned in the first conveyor belt, the first electromagnet is close to the feed end of the separation tank, and the magnetic field intensity generated by the first electromagnet is greater than that generated by the second electromagnet; the first discharge chute and the second discharge chute are arranged on the separation tank in a penetrating mode side by side and located between the bottom surface of the first conveyor belt and the inner bottom of the separation tank, a second gap is formed between the first discharge chute and the inner bottom of the separation tank, and the second discharge chute is close to the discharge end of the separation tank; the bottom surfaces of the first discharging groove and the second discharging groove are both fixed with second vibration feeding blocks; the first motor is arranged on the outer side of the separation groove and used for driving the first conveyor belt to work.
The hot melting device further comprises a bottom plate, a second conveyor belt, a first hopper, a heat preservation cover, a third discharge chute and a second motor;
the bottom plate is fixed on the magnetic separation device, the second conveyer belt is installed on the bottom plate, the top at the second conveyer belt is fixed to the heat preservation cover, first feed inlet has been seted up to the one end at heat preservation cover top, the interior top of heat preservation cover is fixed with a plurality of infrared heating boards along its length direction interval, first hopper correspondence is installed on first feed inlet, the one end of keeping away from first hopper at the second conveyer belt is fixed to the third blown down tank, the second motor is installed on the second conveyer belt and is used for driving the second conveyer belt work.
The hot melting device further comprises a flux adjusting valve for adjusting the flux of the first feeding hole, the flux adjusting valve is installed on the first feeding hole, and the first hopper is correspondingly fixed on the flux adjusting valve.
The flux regulating valve further comprises a regulating seat body, a material distributing rotor and a stepping motor, wherein the regulating seat body is fixed at the top of the heat-insulating cover, a material distributing cavity communicated with the first feed port is formed in the regulating seat body, the material distributing rotor is rotatably arranged in the material distributing cavity and is divided into a plurality of material distributing unit cavities, the stepping motor is arranged on the regulating seat body, the output end of the stepping motor is connected with one end of the material distributing rotor, and the first hopper is arranged on the regulating seat body and is communicated with the material distributing cavity.
The invention further provides a mixing device which comprises a mixing seat body, a first feeding screw rod, a second feeding screw rod, a mixing driving mechanism, a second hopper and a third hopper;
the mixing base body is fixedly arranged on the hot melting device through two support frames, and a first mixing cavity and a second mixing cavity which are mutually communicated are arranged in the mixing base body side by side; the first feeding screw is rotatably arranged in the first mixing cavity, and the second feeding screw is rotatably arranged in the second mixing cavity; the mixing driving mechanism is used for synchronously driving the first feeding screw rod and the second feeding screw rod to rotate; a second feeding hole and a third feeding hole are formed in one end of the top of the mixing base body and correspond to the first mixing cavity and the second mixing cavity respectively, the second hopper is correspondingly installed on the second feeding hole, and the third hopper is correspondingly installed on the third feeding hole; the one end that the second hopper or third hopper was kept away from to compounding pedestal bottom has seted up the compounding export, the compounding export all communicates with first material mixing chamber and second material mixing chamber.
Further, the feeding spiral surfaces of the first feeding screw rod and the second feeding screw rod are both provided with material mixing pieces along the axial direction.
The mixing driving mechanism further comprises a motor bracket, a third motor, a first gear and two second gears; the motor support is fixedly installed on the material mixing base body, the third motor is installed on the motor support, the first gear is connected to the output end of the third motor, the two second gears are connected to one end of the first feeding screw rod and one end of the second feeding screw rod in a one-to-one correspondence mode, and the two second gears are meshed with the first gears.
The invention has the beneficial effects that: according to the invention, ferromagnetic particles are mixed in sand containing plastic particles, and the surface of the plastic particles is melted to form sand-plastic-ferromagnetic particle aggregates, so that the sand, ferromagnetic particles and sand-plastic-ferromagnetic particle aggregates are separated by using the cooperation of the first conveyor belt, the electromagnet and the second electromagnet, thereby recycling the plastic particles, avoiding secondary pollution effectively without using water resources, and simultaneously separating and recycling the plastic particles with the density higher than that of water.
Drawings
FIG. 1 is a perspective view of the present invention;
FIG. 2 is a perspective view from another perspective of the present invention;
FIG. 3 is a perspective view of the magnetic separation device of the present invention;
FIG. 4 is a schematic cross-sectional view of a magnetic separation apparatus of the present invention;
FIG. 5 is a perspective view of the heat stake device of the present invention;
FIG. 6 is a schematic cross-sectional view of a heat stake device of the present invention;
FIG. 7 is a schematic cross-sectional view of a flux regulating valve of the present invention;
FIG. 8 is a perspective view of a compounding device of the present invention;
FIG. 9 is a schematic cross-sectional view of a mixing apparatus of the present invention;
FIG. 10 is a perspective view of the first or second feed screw of the present invention;
figure 11 is a perspective view of the compounding drive mechanism of the present invention;
description of reference numerals: 1. a mixing device; 11. a mixing base body; 12. a first feed screw; 13. a second feed screw; 14. a mixing drive mechanism; 141. a motor bracket; 142. a third motor; 143. a first gear; 144. a second gear; 15. a second hopper; 16. a third hopper; 17. mixing the material sheets; 18. a support frame; 2. a hot melting device; 21. a base plate; 22. a second conveyor belt; 23. a first hopper; 24. a heat-preserving cover; 25. a third discharge chute; 26. a second motor; 27. an infrared heating plate; 28. a flux regulating valve; 281. adjusting the seat body; 282. a material distributing rotor; 283. a stepping motor; 3. a magnetic separation device; 31. a separation tank; 32. a first conveyor belt; 33. a first electromagnet; 34. a second electromagnet; 35. a first discharge chute; 36. a second discharge chute; 37. a first motor; 38. a first vibratory feed block; 39. and the second vibration feeding block.
Detailed Description
The invention will be described in further detail with reference to the following figures and specific examples, without limiting the scope of the invention.
As shown in fig. 1 to fig. 11, the environment-friendly magnetic separation and recovery processing equipment for plastic particles in the embodiment includes a mixing device 1, a hot melting device 2, and a magnetic separation device 3;
the mixing device 1 is used for mixing sand grains containing plastic particles with a large amount of ferromagnetic particles to form mixed gravel and conveying the mixed gravel to the hot melting device 2; the hot melting device 2 is arranged above the mixing device 1, and the hot melting device 2 is used for melting the surface of the plastic particles in the mixed gravel to form sand-plastic-ferromagnetic particle aggregates and conveying the mixed gravel containing the sand-plastic-ferromagnetic particle aggregates to the magnetic separation device 3; the magnetic separation device 3 is arranged below the hot melting device 2, and the magnetic separation device 3 is used for sequentially separating sand grain-plastic-ferromagnetic grain aggregate, ferromagnetic grain and sand grain from the mixed gravel containing the sand grain-plastic-ferromagnetic grain aggregate.
Specifically, in this embodiment, the magnetic separation device 3 includes a separation tank 31, a first conveyor belt 32, a first electromagnet 33, a second electromagnet 34, a first discharge tank 35, a second discharge tank 36, and a first motor 37; first vibration feeding blocks 38 are uniformly distributed on the outer bottom of the separation groove 31 along the direction from the feeding end to the discharging end; the first conveyor belt 32 is installed in the separation groove 31, and a first gap is formed between the bottom surface of the first conveyor belt 32 and the inner bottom of the separation groove 31; the first electromagnet 33 and the second electromagnet 34 are fixed in the separation tank 31 side by side and positioned in the first conveyor belt 32, the first electromagnet 33 is close to the feeding end of the separation tank 31, and the magnetic field intensity generated by the first electromagnet 33 is greater than that generated by the second electromagnet 34; the first discharge chute 35 and the second discharge chute 36 penetrate through the separation tank 31 side by side and are located between the bottom surface of the first conveyor belt 32 and the inner bottom of the separation tank 31, a second gap is formed between the first discharge chute 35 and the inner bottom of the separation tank 31 and between the second discharge chute 36 and the inner bottom of the separation tank 31, and the second discharge chute 36 is close to the discharge end of the separation tank 31; the bottom surfaces of the first discharging groove 35 and the second discharging groove 36 are fixed with a second vibration feeding block 39; the first motor 37 is installed outside the separation tank 31 and serves to drive the first conveyor belt 32 to operate.
The working mode of the embodiment is as follows: in operation, the mixing device 1 mixes sand grains containing plastic particles with a large amount of ferromagnetic particles to form mixed gravel, and then conveys the mixed gravel obtained by mixing to the hot melting device 2, the hot melting device 2 heats the mixed gravel conveyed by the mixing device 1 to make the surface of the plastic particles in the mixed gravel in a molten state, surrounding sand grains and ferromagnetic particles are embedded and bonded on the surface of the plastic particles, so that sand grains-plastic-ferromagnetic particles aggregates are formed in the mixed gravel, and then conveys the mixed gravel containing the sand grains-plastic-ferromagnetic particles aggregates to the feed end of the separation tank 31, and then each first vibration feeding block 38 at the bottom of the separation tank 31 generates vibration to make the mixed gravel in the separation tank 31 spread and move toward the discharge end of the separation tank 31, when the mixed gravel moves into the magnetic field region of the first electromagnet 33, because the ferromagnetic particles and the sand-plastic-ferromagnetic particle aggregates in the mixed gravel have ferromagnetism, the ferromagnetic particles and the sand-plastic-ferromagnetic particle aggregates are adsorbed to the lower surface of the first conveyor belt 32 under the action of the magnetic field force of the first electromagnet 33, so that the ferromagnetic particles and the sand-plastic-ferromagnetic particle aggregates are separated from the sand without ferromagnetism; the first motor 37 drives the first conveyor belt to drive the ferromagnetic particles and the sand-plastic-ferromagnetic particle aggregates adsorbed on the lower surface of the first conveyor belt 32 to enter a magnetic field region separated from the first electromagnet 33 and enter a magnetic field region generated by the second electromagnet 34, because the weight of the ferromagnetic particles is obviously smaller than the gravity of the sand-plastic-ferromagnetic particle aggregates and the magnetic field strength generated by the second electromagnet 34 is smaller than the magnetic field strength generated by the first electromagnet 33, the sand-plastic-ferromagnetic particle aggregates fall off from the first conveyor belt 32 under the action of gravity and then fall into the first discharge chute 35, while the ferromagnetic particles continue to be adsorbed on the lower surface of the first conveyor belt 32, and along with the continuous driving of the first conveyor belt 32, after the ferromagnetic particles adsorbed on the first conveyor belt 32 are separated from the magnetic field region of the second electromagnet 34, because the magnetic adsorption force disappears, ferromagnetic particles break away from the lower surface of the first conveyor belt 32 under the action of gravity and fall into the second discharge chute 36, sand-plastic-ferromagnetic particle aggregates falling into the first discharge chute 35 and ferromagnetic particles falling into the second discharge chute 36 are discharged under the vibration action of the second vibration feeding block 39 respectively, and sand without plastic particles and ferromagnetic particles on the bottom in the separation tank 31 is discharged from the discharge end of the separation tank 31 under the vibration action of each first vibration feeding block 38, so that the plastic particles are completely separated from the sand.
In the embodiment, ferromagnetic particles are mixed in sand containing plastic particles, and aggregate of sand-plastic-ferromagnetic particles is formed after the surface of the plastic particles is melted, so that the sand, ferromagnetic particles and aggregate of sand-plastic-ferromagnetic particles are separated by using the cooperation of the first conveyor belt 32, the electromagnet and the second electromagnet 34, and the plastic particles are recovered without using water resources, thereby effectively avoiding secondary pollution and simultaneously separating and recovering the plastic particles with the density higher than that of water.
Based on the above embodiment, further, the hot melting device 2 includes a bottom plate 21, a second conveyor belt 22, a first hopper 23, a heat preservation cover 24, a third discharge chute 25 and a second motor 26; the bottom plate 21 is fixed on the magnetic separation device 3, specifically, the bottom plate 21 is fixed on the top of the separation groove 31, the second conveyor belt 22 is installed on the bottom plate 21, the heat preservation cover 24 is fixed above the second conveyor belt 22, a first feeding hole is formed in one end of the top of the heat preservation cover 24, a plurality of infrared heating plates 27 are fixed on the inner top of the heat preservation cover 24 along the length direction of the heat preservation cover at intervals, the first hopper 23 is correspondingly installed on the first feeding hole, the third discharging groove 25 is fixed at one end, far away from the first hopper 23, of the second conveyor belt 22, and the second motor 26 is installed on the second conveyor belt 22 and used for driving the second conveyor belt 22 to work.
During practical use, the mixing device 1 conveys the mixed gravel to the first hopper 23, the mixed gravel in the first hopper 23 drops to the second conveyor belt 22 through the first feeding hole, meanwhile, the second motor 26 drives the second conveyor belt 22 to work, so that the second conveyor belt 22 drives the mixed gravel to be conveyed towards the third discharge chute 25, meanwhile, each infrared heating plate 27 works to form an irradiation region in the heat insulation cover 24, the mixed gravel on the second conveyor belt 22 is subjected to irradiation temperature rise in the process of passing through the irradiation region, the surface of the plastic particles in the mixed gravel is in a molten state due to high temperature, surrounding sand particles and ferromagnetic particles are embedded and bonded on the surface of the plastic particles, after passing through the irradiation region, the mixed gravel is reduced, so that the surface of the plastic particles is cooled and recovered, and thus, sand particles, ferromagnetic particles and plastic particles are bonded and fixed to form a whole sand particle-plastic-ferromagnetic aggregate, so as to prepare for the subsequent sorting of sand grains, ferromagnetic grains and plastic grains.
As shown in fig. 1, fig. 2, fig. 5 to fig. 7, based on the above embodiment, further, the heat fusion device 2 further includes a flux regulating valve 28 for regulating the flux of the first inlet, the flux regulating valve 28 is installed on the first inlet, and the first hopper 23 is correspondingly fixed on the flux regulating valve 28.
In this embodiment, the flux adjusting valve 28 includes an adjusting seat 281, a material distributing rotor 282 and a stepping motor 283, the adjusting seat 281 is fixed on the top of the heat-insulating cover 24, a material distributing cavity communicated with the first feeding port is provided on the adjusting seat 281, the material distributing rotor 282 is rotatably disposed in the material distributing cavity and divided into a plurality of material distributing unit cavities, the stepping motor 283 is installed on the adjusting seat 281, the output end of the stepping motor 283 is connected with one end of the material distributing rotor 282, and the first hopper 23 is installed on the adjusting seat 281 and communicated with the material distributing cavity.
During actual use, the mixed gravel enters the material distributing unit cavities of the material distributing cavity of the adjusting seat body 281 from the first hopper 23, meanwhile, the stepping motor 283 drives the material distributing rotor 282 to rotate, so that the material distributing unit cavities are sequentially filled with the mixed gravel, and after the material distributing unit cavities filled with the mixed gravel rotate to be communicated with the first feed inlet, the mixed gravel in the material distributing unit cavities all fall onto the second conveyor belt 22 through the first feed inlet, so that the mixed gravel falls onto the surface of the second conveyor belt 22 and is in independent linear distribution; the spacing between the linearly arranged grits can be adjusted by adjusting the rotational speed of the material separating rotor 282.
As shown in fig. 1, fig. 2, and fig. 8 to fig. 11, based on the above embodiments, the mixing device 1 further includes a mixing base 11, a first feeding screw 12, a second feeding screw 13, a mixing driving mechanism 14, a second hopper 15, and a third hopper 16;
the material mixing base body 11 is fixedly arranged on the hot melting device 2 through two support frames 18, specifically, the support frames 18 are fixed at the top of the heat insulation cover 24, and a first material mixing cavity and a second material mixing cavity which are mutually communicated are arranged in the material mixing base body 11 side by side; the first feeding screw 12 is rotatably arranged in the first mixing cavity, and the second feeding screw 13 is rotatably arranged in the second mixing cavity; the mixing driving mechanism 14 is used for synchronously driving the first feeding screw 12 and the second feeding screw 13 to rotate; a second feeding hole and a third feeding hole are formed in one end of the top of the material mixing base body 11 and correspond to the first material mixing cavity and the second material mixing cavity respectively, the second hopper 15 is correspondingly installed on the second feeding hole, and the third hopper 16 is correspondingly installed on the third feeding hole; the mixing outlet has been seted up to the one end of the compounding pedestal 11 bottom of keeping away from second hopper 15 or third hopper 16, and the compounding outlet all communicates with first material mixing chamber and second material mixing chamber.
During the in-service use, pour into the sand grain that contains plastic granules to second hopper 15 in, the sand grain that contains plastic granules gets into first compounding intracavity, pour ferromagnetic granule into third hopper 16 in, ferromagnetic granule gets into second compounding intracavity, compounding actuating mechanism 14 drives first feeding screw 12 and second feeding screw 13 in step simultaneously and rotates, make sand grain, plastic granules, ferromagnetic granule mix at first compounding intracavity and second compounding intracavity and form mixed gravel, first feeding screw 12 and second feeding screw 13 carry mixed gravel towards compounding export direction simultaneously, until mixed gravel drops to first hopper 23 from the compounding export, thereby realize the mixture of sand grain and ferromagnetic granule and carry mixed gravel to hot melt device 2.
Based on the above embodiment, further, the feeding spiral surfaces of the first feeding screw 12 and the second feeding screw 13 are both provided with a material mixing sheet 17 along the axial direction; this embodiment is through setting up material mixing piece 17, utilizes material mixing piece 17's stirring effect for abundant homogeneous mixing between sand grain, plastic granules, the ferromagnetism granule, it is better to mix the effect.
Based on the above embodiment, further, the mixing driving mechanism 14 includes a motor bracket 141, a third motor 142, a first gear 143, and two second gears 144; the motor bracket 141 is fixedly installed on the mixing seat body 11, the third motor 142 is installed on the motor bracket 141, the first gear 143 is connected to the output end of the third motor 142, the two second gears 144 are correspondingly connected to one end of the first feeding screw 12 and one end of the second feeding screw 13, and the two second gears 144 are both meshed with the first gear 143.
During actual use, the third motor 142 drives the first gear 143 to rotate, and the first gear 143 drives the two second gears 144 to rotate, so that the first feeding screw 12 and the second feeding screw 13 are driven to rotate synchronously, and sand particles, plastic particles and ferromagnetic particles are mixed and conveyed.
The above description is only a preferred embodiment of the present invention, and therefore, all equivalent changes or modifications of the structure, characteristics and principles described in the present patent application are included in the protection scope of the present patent application.
Claims (9)
1. An environment-friendly plastic particle magnetic separation recovery processing device is characterized by comprising a mixing device (1), a hot melting device (2) and a magnetic separation device (3);
the mixing device (1) is used for mixing sand grains containing plastic particles with a large amount of ferromagnetic particles to form mixed gravel and conveying the mixed gravel to the hot melting device (2);
the hot melting device (2) is arranged above the mixing device (1), and the hot melting device (2) is used for melting the surface of the plastic particles in the mixed gravel to form sand-plastic-ferromagnetic particle aggregates and conveying the mixed gravel containing the sand-plastic-ferromagnetic particle aggregates to the magnetic separation device (3);
magnetic separation device (3) are located the below of hot melt device (2), magnetic separation device (3) are used for separating sand grain-plastics-ferromagnetic particle aggregate, ferromagnetic particle, sand grain in proper order with the mixed gravel that contains sand grain-plastics-ferromagnetic particle aggregate.
2. The environment-friendly magnetic separation and recovery processing device for plastic particles as claimed in claim 1, wherein the magnetic separation device (3) comprises a separation tank (31), a first conveyor belt (32), a first electromagnet (33), a second electromagnet (34), a first discharge tank (35), a second discharge tank (36) and a first motor (37);
first vibration feeding blocks (38) are uniformly distributed on the outer bottom of the separation groove (31) along the direction from the feeding end to the discharging end; the first conveyor belt (32) is installed in the separation groove (31), and a first gap is formed between the bottom surface of the first conveyor belt (32) and the inner bottom of the separation groove (31); the first electromagnet (33) and the second electromagnet (34) are fixed in the separating tank (31) side by side and positioned in the first conveyor belt (32), the first electromagnet (33) is close to the feeding end of the separating tank (31), and the magnetic field intensity generated by the first electromagnet (33) is greater than that generated by the second electromagnet (34); the first discharging groove (35) and the second discharging groove (36) are arranged on the separating groove (31) in a penetrating mode side by side and located between the bottom face of the first conveyor belt (32) and the inner bottom of the separating groove (31), a second gap is formed between the first discharging groove (35) and the inner bottom of the separating groove (31) and between the second discharging groove (36) and the inner bottom of the separating groove (31), and the second discharging groove (36) is close to the discharging end of the separating groove (31); the bottom surfaces of the first discharging groove (35) and the second discharging groove (36) are fixed with second vibration feeding blocks (39); the first motor (37) is arranged outside the separation groove (31) and is used for driving the first conveyor belt (32) to work.
3. The environment-friendly magnetic separation and recovery processing equipment for the plastic particles as claimed in claim 1, wherein the hot melting device (2) comprises a bottom plate (21), a second conveyor belt (22), a first hopper (23), a heat preservation cover (24), a third discharging groove (25) and a second motor (26);
bottom plate (21) are fixed on magnetic separation device (3), install on bottom plate (21) second conveyer belt (22), the top at second conveyer belt (22) is fixed in heat preservation cover (24), first feed inlet has been seted up to the one end at heat preservation cover (24) top, the interior top of heat preservation cover (24) is fixed with a plurality of infrared heating board (27) along its length direction interval, first hopper (23) are corresponding to be installed on first feed inlet, the one end of keeping away from first hopper (23) in second conveyer belt (22) is fixed in third blown down tank (25), second motor (26) are installed on second conveyer belt (22) and are used for driving second conveyer belt (22) work.
4. The environment-friendly magnetic separation and recovery processing equipment for the plastic particles as claimed in claim 1, wherein the hot melting device (2) further comprises a flux regulating valve (28) for regulating the flux of the first feeding hole, the flux regulating valve (28) is installed on the first feeding hole, and the first hopper (23) is correspondingly fixed on the flux regulating valve (28).
5. The environment-friendly magnetic separation and recovery processing device for plastic particles as claimed in claim 1, wherein the flux regulating valve (28) comprises a regulating seat body (281), a material distribution rotor (282) and a stepping motor (283), the regulating seat body (281) is fixed on the top of the heat-insulating cover (24), a material distribution cavity communicated with the first feed port is arranged on the regulating seat body (281), the material distribution rotor (282) is rotatably arranged in the material distribution cavity and is divided into a plurality of material distribution unit cavities, the stepping motor (283) is installed on the regulating seat body (281), the output end of the stepping motor (283) is connected with one end of the material distribution rotor (282), and the first hopper (23) is installed on the regulating seat body (281) and is communicated with the material distribution cavity.
6. The environment-friendly magnetic separation and recovery processing equipment for the plastic particles as claimed in claim 1, wherein the mixing device (1) comprises a mixing base (11), a first feeding screw (12), a second feeding screw (13), a mixing driving mechanism (14), a second hopper (15) and a third hopper (16);
the mixing base body (11) is fixedly arranged on the hot melting device (2) through two supporting frames (18), and a first mixing cavity and a second mixing cavity which are communicated with each other are arranged in the mixing base body (11) side by side; the first feeding screw (12) is rotatably arranged in the first mixing cavity, and the second feeding screw (13) is rotatably arranged in the second mixing cavity; the mixing driving mechanism (14) is used for synchronously driving the first feeding screw (12) and the second feeding screw (13) to rotate; a second feeding hole and a third feeding hole are formed in one end of the top of the material mixing base body (11) and correspond to the first material mixing cavity and the second material mixing cavity respectively, the second hopper (15) is correspondingly installed on the second feeding hole, and the third hopper (16) is correspondingly installed on the third feeding hole; the one end that the compounding pedestal (11) bottom was kept away from second hopper (15) or third hopper (16) has seted up the compounding export, the compounding export all communicates with first material mixing chamber and second material mixing chamber.
7. The environment-friendly magnetic separation and recovery processing equipment for the plastic particles as claimed in claim 1, wherein the feeding screw surfaces of the first feeding screw (12) and the second feeding screw (13) are provided with mixing pieces (17) along the axial direction.
8. The environment-friendly magnetic separation and recovery processing device for plastic particles as claimed in claim 1, wherein the mixing material driving mechanism (14) comprises a motor bracket (141), a third motor (142), a first gear (143) and two second gears (144); the motor support (141) is fixedly installed on the mixing base body (11), the third motor (142) is installed on the motor support (141), the first gear (143) is connected to the output end of the third motor (142), the two second gears (144) are connected to one end of the first feeding screw rod (12) and one end of the second feeding screw rod (13) in a one-to-one correspondence mode, and the two second gears (144) are meshed with the first gear (143).
9. The separation method of the magnetic separation and recovery treatment equipment for the plastic particles is characterized by comprising the following steps of:
s100: the mixing device (1) mixes sand grains containing plastic particles with a large amount of ferromagnetic particles to form mixed gravel, and conveys the mixed gravel obtained by mixing to the hot melting device (2);
s200: the hot melting device (2) heats the mixed gravel conveyed by the mixing device (1) to enable the surface of the plastic particles in the mixed gravel to be in a molten state, and surrounding sand grains and ferromagnetic particles are embedded and bonded on the surface of the plastic particles, so that sand grain-plastic-ferromagnetic particle aggregates are formed in the mixed gravel, and then the mixed gravel containing the sand grain-plastic-ferromagnetic particle aggregates is conveyed to the feeding end of the separation tank (31);
s300: each first vibration feeding block (38) at the bottom of the separating tank (31) of the magnetic separating device (3) vibrates to enable mixed gravel in the separating tank (31) to be spread out and move towards the discharge end of the separating tank (31), and when the mixed gravel moves to a magnetic field area of the first electromagnet (33), ferromagnetic particles and aggregate of the ferromagnetic particles, namely the sand particles and the aggregate of the sand particles and the plastic particles, are adsorbed to the lower surface of the first conveyor belt (32) under the action of the magnetic field force of the first electromagnet (33) so as to be separated from the sand particles without ferromagnetism;
the first motor (37) drives the first transmission belt to drive ferromagnetic particles and sand-plastic-ferromagnetic particle aggregates adsorbed on the lower surface of the first transmission belt (32) to enter a magnetic field area separated from the first electromagnet (33) and enter a magnetic field area generated by the second electromagnet (34), the sand-plastic-ferromagnetic particle aggregates fall off from the first transmission belt (32) under the action of gravity and then fall into the first discharge chute (35), the sand-plastic-ferromagnetic particle aggregates falling into the first discharge chute (35) are discharged under the vibration action of the second vibration feeding block (39), and the ferromagnetic particles are continuously adsorbed on the lower surface of the first transmission belt (32) and are driven with the first transmission belt (32);
s400: after ferromagnetic particles adsorbed on the first conveyor belt (32) are separated from a magnetic field area of the second electromagnet (34), the ferromagnetic particles are separated from the lower surface of the first conveyor belt (32) under the action of gravity and fall into the second discharge chute (36), and the ferromagnetic particles falling into the second discharge chute (36) are discharged under the vibration action of the second vibration feeding block (39);
s500: the sand grains which are not provided with plastic grains and ferromagnetic grains on the inner bottom of the separation groove (31) are discharged from the discharge end of the separation groove (31) under the vibration action of each first vibration feeding block (38), so that the plastic grains are completely separated from the sand grains.
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| Application Number | Priority Date | Filing Date | Title |
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| CN202210396544.9A CN115008638A (en) | 2022-04-15 | 2022-04-15 | Environment-friendly plastic particle magnetic separation and recovery treatment equipment and separation method |
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| CN202210396544.9A CN115008638A (en) | 2022-04-15 | 2022-04-15 | Environment-friendly plastic particle magnetic separation and recovery treatment equipment and separation method |
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Cited By (1)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN115780076A (en) * | 2022-11-04 | 2023-03-14 | 徐州盛安化工科技有限公司 | Production method and equipment of low-furfuryl alcohol low-formaldehyde furan resin |
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| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN112339161A (en) * | 2020-10-16 | 2021-02-09 | 界首市宏达塑业有限公司 | Waste PC plastic recovery and granulation process |
| CN215703213U (en) * | 2021-08-20 | 2022-02-01 | 高台县新宇塑业有限公司 | Recovery and separation device for waste plastic impurity treatment |
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Patent Citations (2)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN112339161A (en) * | 2020-10-16 | 2021-02-09 | 界首市宏达塑业有限公司 | Waste PC plastic recovery and granulation process |
| CN215703213U (en) * | 2021-08-20 | 2022-02-01 | 高台县新宇塑业有限公司 | Recovery and separation device for waste plastic impurity treatment |
Cited By (2)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN115780076A (en) * | 2022-11-04 | 2023-03-14 | 徐州盛安化工科技有限公司 | Production method and equipment of low-furfuryl alcohol low-formaldehyde furan resin |
| CN115780076B (en) * | 2022-11-04 | 2023-09-08 | 徐州盛安化工科技有限公司 | Production method and equipment of furan resin with low furfuryl alcohol and low formaldehyde |
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