CN113290729A - Energy-saving and environment-friendly production method of square plastic particles - Google Patents
Energy-saving and environment-friendly production method of square plastic particles Download PDFInfo
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- CN113290729A CN113290729A CN202110635921.5A CN202110635921A CN113290729A CN 113290729 A CN113290729 A CN 113290729A CN 202110635921 A CN202110635921 A CN 202110635921A CN 113290729 A CN113290729 A CN 113290729A
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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
- B29B9/00—Making granules
- B29B9/02—Making granules by dividing preformed material
- B29B9/04—Making granules by dividing preformed material in the form of plates or sheets
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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
- B29B7/00—Mixing; Kneading
- B29B7/002—Methods
- B29B7/005—Methods for mixing in batches
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- B—PERFORMING OPERATIONS; TRANSPORTING
- B29—WORKING OF PLASTICS; WORKING OF SUBSTANCES IN A PLASTIC STATE IN GENERAL
- B29C—SHAPING OR JOINING OF PLASTICS; SHAPING OF MATERIAL IN A PLASTIC STATE, NOT OTHERWISE PROVIDED FOR; AFTER-TREATMENT OF THE SHAPED PRODUCTS, e.g. REPAIRING
- B29C48/00—Extrusion moulding, i.e. expressing the moulding material through a die or nozzle which imparts the desired form; Apparatus therefor
- B29C48/03—Extrusion moulding, i.e. expressing the moulding material through a die or nozzle which imparts the desired form; Apparatus therefor characterised by the shape of the extruded material at extrusion
- B29C48/07—Flat, e.g. panels
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- B—PERFORMING OPERATIONS; TRANSPORTING
- B29—WORKING OF PLASTICS; WORKING OF SUBSTANCES IN A PLASTIC STATE IN GENERAL
- B29C—SHAPING OR JOINING OF PLASTICS; SHAPING OF MATERIAL IN A PLASTIC STATE, NOT OTHERWISE PROVIDED FOR; AFTER-TREATMENT OF THE SHAPED PRODUCTS, e.g. REPAIRING
- B29C48/00—Extrusion moulding, i.e. expressing the moulding material through a die or nozzle which imparts the desired form; Apparatus therefor
- B29C48/25—Component parts, details or accessories; Auxiliary operations
- B29C48/252—Drive or actuation means; Transmission means; Screw supporting means
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- Engineering & Computer Science (AREA)
- Mechanical Engineering (AREA)
- Separation, Recovery Or Treatment Of Waste Materials Containing Plastics (AREA)
- Processing And Handling Of Plastics And Other Materials For Molding In General (AREA)
Abstract
The invention discloses an energy-saving and environment-friendly production method of square plastic particles, which relates to the field of plastic particle production and aims to solve the problems of large pollution and high overall energy consumption in the synthesis of plastic particles in the prior art; in the kneading process, the cylinder body is sealed, so that the environmental pollution is reduced, and the raw material loss is reduced; the material is extruded into a plate through the discharge port, and the plate is granulated in a manner of uniformly cutting according to a proportion, the material density is improved by extruding the plate, the discharge quantity is greatly improved by the plate-shaped cuboid discharge port, and the yield at the same ratio is improved; the extrusion device adopts a permanent magnet motor to replace a traditional motor, saves energy and reduces consumption by more than 30% under the same power, and the arrangement of a high-torque speed reducer enhances the power of the machine and reduces the consumption; the concentrated air cooling link also enables heat in production to be discharged and processed in a concentrated mode, operation is convenient, and the workshop production link is improved.
Description
Technical Field
The invention relates to the field of plastic particle production, in particular to an energy-saving and environment-friendly square plastic particle production method.
Background
Plastics are high molecular compounds (macromolecules) which are polymerized by addition polymerization or polycondensation reaction and are intermediate in deformation resistance between fibers and rubber, and are composed of synthetic resin, fillers, plasticizers, stabilizers, lubricants, pigments and other additives.
The main component of the plastic is resin, the resin refers to a high molecular compound which is not mixed with various additives, the resin is originally named by lipid secreted by animals and plants, such as rosin, shellac and the like, the resin accounts for about 40-100% of the total weight of the plastic, the basic performance of the plastic is mainly determined by the nature of the resin, but the additives play an important role, and some plastics basically consist of synthetic resin and contain no or few additives, such as organic glass, polystyrene and the like.
The plastic particles refer to granular plastics which are generally divided into more than 200 types and are subdivided into thousands of types, and common plastic particles comprise general plastics, engineering plastics and special plastics; general purpose plastics: polypropylene, polyethylene, polyvinyl chloride, polystyrene, polyester, polyurethane, and the like; engineering plastics: nylon, polytetrafluoroethylene, polyoxymethylene, polycarbon silicone, and the like; special plastics: thermosetting plastics, functional polymer plastics, such as artificial kidney.
An internal mixer is required in the process of producing plastic particles, and the internal mixer is a full-name internal rubber mixing mill and is mainly used for plasticating and mixing rubber. The internal mixer is a machine which is equipped with a pair of rotors with specific shapes and can be relatively rotated, and can be used for plasticating and mixing polymer material in a clearance mode under the closed state of adjustable temperature and pressure, and is mainly formed from internal mixing chamber, rotor sealing device, feeding and pressing device, discharging device, driving device and machine base.
In the long-term operation process of the internal mixer, because of the influences of vibration, abrasion, pressure, temperature, repeated disassembly and assembly and the like, the static sealing part of each joint surface is easy to leak, which not only causes a great deal of waste of oil products, but also influences the field management of enterprises. The traditional method for treating the leakage of the internal mixer needs to dismantle and open the internal mixer, then replace the sealing gasket or paint the sealing glue, but wastes time and labor, is difficult to ensure the sealing effect, and can cause the leakage again in the running process.
The kneader is an ideal device for kneading, mixing, vulcanizing and polymerizing high-viscosity and elastoplastic materials. The kneader can be used for producing silicon rubber, sealant, hot melt adhesive, food gum base, pharmaceutical preparation and the like. The kneader is a special mixing stirring equipment, and the most common use adopts two sigma-shaped paddle blades, adopts the tangent differential type range side by side, and one stirring paddle is fast, and the speed of one stirring paddle is slow to produce the shearing force, and different paddle speeds make the material of mixing can be sheared rapidly, thereby make the material misce bene.
Disclosure of Invention
In view of the problems in the prior art, the invention discloses an energy-saving and environment-friendly production method of square plastic particles, which adopts the technical scheme that the production method comprises the following steps:
step 1, putting raw materials into a kneading machine for kneading, sealing a cylinder body of the kneading machine in the kneading process, mixing by adopting a single screw, improving the mixing efficiency and the production speed, and kneading the raw materials for 15-35 min at 100-200 ℃ to obtain a product A;
step 2, extruding the product A obtained in the step 1 into a plate through an extruding device, wherein the plate is an intermediate product, the material density is improved through extruding the plate, meanwhile, the discharging quantity is greatly increased through a plate-shaped cuboid discharging port, the same-proportion yield is increased, the obtained intermediate product is conveyed through a conveying belt, the discharging is guided through the conveying belt, the discharging speed and the discharging yield are increased, meanwhile, the energy consumption can be further reduced overall, the extruding device is driven by a permanent magnet motor, and the permanent magnet motor replaces a traditional motor under the same power, so that the energy is saved and the consumption is reduced by more than 30%; the high-torque speed reducer enhances the power of the machine and reduces the consumption;
step 3, conveying, cooling and shaping the intermediate product obtained in the step 2 to obtain a lath-shaped product B; and cutting, granulating and screening the product B to obtain a final product, wherein the cutting speed is high in the cutting and granulating process, and the size is convenient to control.
Step 4, carrying out centralized cooling on the final product obtained in the step 3; the concentrated cooling facilitates the concentrated discharge treatment of heat.
As a preferable technical scheme of the invention, in the step 1, the raw materials are kneaded at 120-140 ℃ for 20-26 min to obtain the product A.
As a preferred technical scheme of the present invention, in the step 2, the extrusion opening of the extrusion device is a square opening, the plastic is extruded in a square strip, the conveyor belt is provided with a former, the former is a square plate die, and the plastic can be rapidly and continuously extruded and cut by rolling in a roller manner.
As a preferred technical solution of the present invention, in the step 3, the product B is cut into plastic particles by the cutting board, and the plastic particles are cut by the cutting board, so that the sizes of the plastic particles are consistent, the rejection rate is reduced, the sizes of the plastic particles can be adjusted by adjusting the cutting board according to production requirements, the production line can be adjusted more quickly, and the cutting board cuts the square plastic particles in the forming device, thereby reducing the generation of waste materials.
As a preferred technical scheme of the invention, the surface of the product B is firstly smoothed before cutting, so that the product B is prevented from being scrapped due to uneven upper surface when a former is filled, and resource waste is caused; when in use, the kneading machine can be filled with collected waste materials on two sides, so that resource waste is reduced.
As a preferred technical scheme of the invention, the cooling in the step 4 adopts an air cooling machine for air cooling, so that new impurities cannot be introduced into the plastic particles by air cooling, the component proportion of the plastic particles is accurate, and the yield is improved.
In a preferred embodiment of the present invention, the air-cooling unit is installed in an air-cooling chamber, and cooling air is blown downward from above the conveyor.
As a preferred technical scheme of the invention, the downwind position of the air cooling chamber is subjected to dust removal and filtration treatment, the dust brought into the air cooling chamber by the conveyor belt and the plastic particles can be collected in the cold air blowing process, the dust is prevented from flying, and harmful gas emitted by the plastic in the cooling process is filtered to prevent the environment from being polluted.
The invention has the beneficial effects that: according to the invention, the kneading machine is adopted to replace the traditional internal mixer, so that the raw material mixing effect is better, the density proportion of the plastic is more uniform, and the product quality is improved; in the kneading process, the cylinder body is sealed, so that dust and environmental pollution are reduced, and the loss of raw materials is reduced; the material is extruded into a plate through the discharge port, and the plate is granulated in a manner of uniformly cutting according to a proportion, so that the material density is improved through the extrusion into the plate, and meanwhile, the discharge quantity is greatly improved through the plate-shaped cuboid discharge port, and the yield at the same ratio is improved; the extrusion mechanism adopts a permanent magnet motor to replace a traditional motor, saves energy and reduces consumption by more than 30% under the same power, and the arrangement of a high-torque speed reducer enhances the power of the machine and reduces the consumption; the concentrated air cooling link also enables heat in production to be discharged and processed in a concentrated mode, operation is convenient, and the workshop production link is improved.
Detailed Description
Example 1
The invention discloses a first implementation mode of an energy-saving and environment-friendly square plastic particle production method, which adopts the technical scheme that the method comprises the following steps:
step 1, putting raw materials into a kneader for kneading, sealing a cylinder body of the kneader in the kneading process, kneading the raw materials at 120 ℃ for 26min to obtain a product A, wherein the cylinder body is sealed so as to effectively prevent dust and harmful gas in the raw materials from overflowing;
step 2, extruding the product A obtained in the step 1 into a plate through an extruding device, wherein the material density is improved and the product quality is optimized in the plate extruding process, the obtained intermediate product is an intermediate product, and is conveyed through a conveying belt, so that the generated intermediate product can be quickly transferred, the discharging speed and the yield are improved, and the extruding device adopts a permanent magnet motor;
step 3, conveying, cooling and shaping the intermediate product obtained in the step 2 to obtain a lath-shaped product B; cutting, granulating and screening the product B to obtain a final product, wherein the cutting speed is high in the cutting and granulating process, and the size is convenient to control;
and 4, carrying out concentrated cooling on the product B obtained in the step 3, wherein the concentrated cooling not only can make heat treatment simpler, but also is convenient for carrying out comprehensive recycling on heat, and the comprehensive recycling comprises preheating the raw material before the raw material enters a kneader, so that the energy-saving effect is further realized.
As a preferred technical scheme of the invention, the extrusion port of the extrusion device is a square port, and the forming device is arranged on the conveyor belt, so that continuous and rapid rolling and cutting can be realized.
As a preferred technical scheme of the present invention, in step 3, the product B is cut into plastic particles by the cutting plate, and in the cutting process, not only are the distances between the cutting plates consistent and the sizes of the plastic particles are more easily consistent, but also the sizes of the plastic particle products can be directly adjusted by replacing the cutting plate, and the adjustment of the production line is faster and simpler.
As a preferable technical scheme of the invention, the surface of the product B is firstly smoothed before cutting, so that the product quality is improved, waste materials generated during smoothing can be collected at two sides of a conveyor belt and then backfilled into a kneader, and resources are saved.
As a preferable technical scheme of the invention, the cooling in the step 4 adopts an air cooling machine for air cooling, the air cooling structure is simple, and other components cannot be introduced before the plastic particles are cooled.
As a preferable technical scheme of the invention, the air cooling machine is arranged in the air cooling chamber, and cooling air is blown from the upper part of the conveyor belt to the lower part to rapidly cool the plastic particles.
As a preferred technical scheme of the invention, the dust removal and filtration treatment at the downwind direction of the air cooling chamber can be carried out in a mode of serially connecting cloth bag type dust removal and activated carbon filtration, the cloth bag type dust removal can prevent dust from overflowing to pollute the environment, and the activated carbon can remove harmful components volatilized in the cooling process of plastic particles and protect the environment.
Example 2
The invention discloses a second implementation mode of an energy-saving and environment-friendly square plastic particle production method, which adopts the technical scheme that the method comprises the following steps:
step 1, putting raw materials into a kneader for kneading, sealing a cylinder body of the kneader in the kneading process, kneading the raw materials at 140 ℃ for 20min to obtain a product A, wherein the cylinder body is sealed so as to effectively prevent dust and harmful gas in the raw materials from overflowing;
step 2, extruding the product A obtained in the step 1 into a plate through an extruding device, wherein the material density is improved and the product quality is optimized in the plate extruding process, the obtained intermediate product is an intermediate product, and is conveyed through a conveying belt, so that the generated intermediate product can be quickly transferred, the discharging speed and the yield are improved, and the extruding device adopts a permanent magnet motor;
step 3, conveying, cooling and shaping the intermediate product obtained in the step 2 to obtain a lath-shaped product B; cutting, granulating and screening the product B to obtain a final product, wherein the cutting speed is high in the cutting and granulating process, and the size is convenient to control;
and 4, carrying out concentrated cooling on the product B obtained in the step 3, wherein the concentrated cooling not only can make heat treatment simpler, but also is convenient for carrying out comprehensive recycling on heat, and the comprehensive recycling comprises preheating the raw material before the raw material enters a kneader, so that the energy-saving effect is further realized.
As a preferred technical scheme of the invention, the extrusion port of the extrusion device is a square port, and the forming device is arranged on the conveyor belt, so that continuous and rapid rolling and cutting can be realized.
As a preferred technical scheme of the present invention, in step 3, the product B is cut into plastic particles by the cutting plate, and in the cutting process, not only are the distances between the cutting plates consistent and the sizes of the plastic particles are more easily consistent, but also the sizes of the plastic particle products can be directly adjusted by replacing the cutting plate, and the adjustment of the production line is faster and simpler.
As a preferable technical scheme of the invention, the surface of the product B is firstly smoothed before cutting, so that the product quality is improved, waste materials generated during smoothing can be collected at two sides of a conveyor belt and then backfilled into a kneader, and resources are saved.
As a preferable technical scheme of the invention, the cooling in the step 4 adopts an air cooling machine for air cooling, the air cooling structure is simple, and other components cannot be introduced before the plastic particles are cooled.
As a preferable technical scheme of the invention, the air cooling machine is arranged in the air cooling chamber, and cooling air is blown from the upper part of the conveyor belt to the lower part to rapidly cool the plastic particles.
As a preferred technical scheme of the invention, the dust removal and filtration treatment at the downwind direction of the air cooling chamber can be carried out in a mode of serially connecting cloth bag type dust removal and activated carbon filtration, the cloth bag type dust removal can prevent dust from overflowing to pollute the environment, and the activated carbon can remove harmful components volatilized in the cooling process of plastic particles and protect the environment.
Example 3
The invention discloses a first implementation mode of an energy-saving and environment-friendly square plastic particle production method, which adopts the technical scheme that the method comprises the following steps:
step 1, putting raw materials into a kneader for kneading, sealing a cylinder body of the kneader in the kneading process, kneading the raw materials at 130 ℃ for 23min to obtain a product A, wherein the cylinder body is sealed to effectively prevent dust and harmful gases in the raw materials from overflowing;
step 2, extruding the product A obtained in the step 1 into a plate through an extruding device, wherein the material density is improved and the product quality is optimized in the plate extruding process, the obtained intermediate product is an intermediate product, and is conveyed through a conveying belt, so that the generated intermediate product can be quickly transferred, the discharging speed and the yield are improved, and the extruding device adopts a permanent magnet motor;
step 3, conveying, cooling and shaping the intermediate product obtained in the step 2 to obtain a lath-shaped product B; cutting, granulating and screening the product B to obtain a final product, wherein the cutting speed is high in the cutting and granulating process, and the size is convenient to control;
and 4, carrying out concentrated cooling on the product B obtained in the step 3, wherein the concentrated cooling not only can make heat treatment simpler, but also is convenient for carrying out comprehensive recycling on heat, and the comprehensive recycling comprises preheating the raw material before the raw material enters a kneader, so that the energy-saving effect is further realized.
As a preferred technical scheme of the invention, the extrusion port of the extrusion device is a square port, and the forming device is arranged on the conveyor belt, so that continuous and rapid rolling and cutting can be realized.
As a preferred technical scheme of the present invention, in step 3, the product B is cut into plastic particles by the cutting plate, and in the cutting process, not only are the distances between the cutting plates consistent and the sizes of the plastic particles are more easily consistent, but also the sizes of the plastic particle products can be directly adjusted by replacing the cutting plate, and the adjustment of the production line is faster and simpler.
As a preferable technical scheme of the invention, the surface of the product B is firstly smoothed before cutting, so that the product quality is improved, waste materials generated during smoothing can be collected at two sides of a conveyor belt and then backfilled into a kneader, and resources are saved.
As a preferable technical scheme of the invention, the cooling in the step 4 adopts an air cooling machine for air cooling, the air cooling structure is simple, and other components cannot be introduced before the plastic particles are cooled.
As a preferable technical scheme of the invention, the air cooling machine is arranged in the air cooling chamber, and cooling air is blown from the upper part of the conveyor belt to the lower part to rapidly cool the plastic particles.
As a preferred technical scheme of the invention, the downwind position of the air cooling chamber is subjected to dust removal treatment, the dust removal can be carried out in a mode of serially connecting cloth bag type dust removal and active carbon filtration, the cloth bag type dust removal can prevent dust from overflowing to pollute the environment, and the active carbon can remove harmful ingredients volatilized in the cooling process of plastic particles and protect the environment.
Although the present invention has been described in detail with reference to the specific embodiments, the present invention is not limited to the above embodiments, and various changes and modifications without inventive changes may be made within the knowledge of those skilled in the art without departing from the spirit of the present invention.
Claims (8)
1. The energy-saving and environment-friendly production method of the square plastic particles is characterized by comprising the following steps of:
step 1, putting raw materials into a kneading machine for kneading, sealing a cylinder body of the kneading machine in the kneading process, and kneading the raw materials at 100-200 ℃ for 15-35 min to obtain a product A;
step 2, extruding the product A obtained in the step 1 into a plate through an extruding device, wherein the plate is an intermediate product, conveying the intermediate product through a conveying belt, and the extruding device is driven by a permanent magnet motor;
step 3, conveying, cooling and shaping the intermediate product obtained in the step 2 to obtain a lath-shaped product B; cutting, granulating and screening the product B to obtain a final product;
and 4, carrying out centralized cooling on the final product obtained in the step 3.
2. The energy-saving and environment-friendly square plastic particle production method as claimed in claim 1, wherein the method comprises the following steps: in the step 1, the raw materials are kneaded at 120-140 ℃ for 20-26 min to obtain a product A.
3. The energy-saving and environment-friendly square plastic particle production method as claimed in claim 1, wherein the method comprises the following steps: in the step 2, the extrusion port of the extrusion device is a square port, a former is arranged on the conveyor belt, and rolling is carried out in a roller mode.
4. The energy-saving and environment-friendly square plastic particle production method as claimed in claim 1, wherein the method comprises the following steps: and in the step 3, cutting the product B into plastic particles through a cutting plate.
5. The energy-saving and environment-friendly square plastic particle production method as claimed in claim 4, wherein the method comprises the following steps: the surface of the product B is smoothed before cutting.
6. The energy-saving and environment-friendly square plastic particle production method as claimed in claim 1, wherein the method comprises the following steps: and cooling in the step 4 by adopting an air cooling machine.
7. The energy-saving and environment-friendly square plastic particle production method as claimed in claim 6, wherein the method comprises the following steps: the air cooling machine is arranged in the air cooling chamber, and cooling air is blown downwards from the upper part of the conveyor belt.
8. The energy-saving and environment-friendly square plastic particle production method as claimed in claim 7, wherein the method comprises the following steps: and the downwind part of the air cooling chamber is subjected to dust removal and filtration treatment.
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| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN202110635921.5A CN113290729A (en) | 2021-06-08 | 2021-06-08 | Energy-saving and environment-friendly production method of square plastic particles |
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| Application Number | Priority Date | Filing Date | Title |
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| CN202110635921.5A CN113290729A (en) | 2021-06-08 | 2021-06-08 | Energy-saving and environment-friendly production method of square plastic particles |
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| CN113290729A true CN113290729A (en) | 2021-08-24 |
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| CN202110635921.5A Pending CN113290729A (en) | 2021-06-08 | 2021-06-08 | Energy-saving and environment-friendly production method of square plastic particles |
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Citations (4)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN104044222A (en) * | 2013-03-11 | 2014-09-17 | 昆山宝腾橡塑胶材料科技有限公司 | Processing technology for plastic granules |
| CN109624131A (en) * | 2018-12-28 | 2019-04-16 | 赵成云 | A kind of environmental protection particle production line |
| CN111497067A (en) * | 2020-04-27 | 2020-08-07 | 界首市云锋再生资源有限公司 | Extrusion granulation equipment for plastic recycling and processing and operation method thereof |
| CN112895199A (en) * | 2021-01-14 | 2021-06-04 | 宁波拓烯新材料科技有限公司 | Production device and process for mixing silicon rubber or silicon rubber compound slices |
-
2021
- 2021-06-08 CN CN202110635921.5A patent/CN113290729A/en active Pending
Patent Citations (4)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN104044222A (en) * | 2013-03-11 | 2014-09-17 | 昆山宝腾橡塑胶材料科技有限公司 | Processing technology for plastic granules |
| CN109624131A (en) * | 2018-12-28 | 2019-04-16 | 赵成云 | A kind of environmental protection particle production line |
| CN111497067A (en) * | 2020-04-27 | 2020-08-07 | 界首市云锋再生资源有限公司 | Extrusion granulation equipment for plastic recycling and processing and operation method thereof |
| CN112895199A (en) * | 2021-01-14 | 2021-06-04 | 宁波拓烯新材料科技有限公司 | Production device and process for mixing silicon rubber or silicon rubber compound slices |
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Application publication date: 20210824 |
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