CN110744744A - Plastic particle production process - Google Patents
Plastic particle production process Download PDFInfo
- Publication number
- CN110744744A CN110744744A CN201911028297.1A CN201911028297A CN110744744A CN 110744744 A CN110744744 A CN 110744744A CN 201911028297 A CN201911028297 A CN 201911028297A CN 110744744 A CN110744744 A CN 110744744A
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- Prior art keywords
- master batch
- production process
- crushing
- plastic
- cleaning
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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
- B29B9/06—Making granules by dividing preformed material in the form of filamentary material, e.g. combined with extrusion
-
- 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
-
- 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
-
- 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
- B29B2017/001—Pretreating the materials before recovery
- B29B2017/0015—Washing, rinsing
-
- 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)
- Mechanical Engineering (AREA)
- Environmental & Geological Engineering (AREA)
- Separation, Recovery Or Treatment Of Waste Materials Containing Plastics (AREA)
Abstract
The invention relates to the technical field of plastic particles, in particular to a plastic particle production process, which comprises the following steps: cleaning the master batch: preparing and classifying the recycled master batch for cleaning; and (3) drying the master batch: the master batch is dehydrated and then dried, so that the drying efficiency can be improved; crushing the master batch: then putting the master batch into a crushing device, and crushing the master batch; auxiliary material treatment: sieving the high polymer resin before use, and grinding the powdered additive with coarse grains or easy agglomeration into slurry with plasticizer; the plastic particles produced by the invention adopt the recycled waste plastic products as the master batch, thereby being beneficial to environmental protection and reducing the production cost of the plastic particles, further reducing the use cost of the plastic particles, and solving the problems of high manufacturing cost, environmental protection and high use cost caused by the fact that most of the existing plastic particles are made of new high-pressure polyethylene.
Description
Technical Field
The invention relates to the technical field of plastic particles, in particular to a plastic particle production process.
Background
With the development of science and technology and the progress of society, plastic particles are used more and more, for example, in various fields of living appliances, clothes, vehicles and medical treatment, and at present, the plastic particles mostly use new high-pressure polyethylene, so that the manufacturing cost is high, the environmental protection is not facilitated, and the use cost is increased.
Disclosure of Invention
The invention aims to provide a plastic particle production process to solve the problems in the background technology.
In order to achieve the purpose, the invention provides the following technical scheme: a plastic particle production process comprises the following steps:
s1, cleaning master batch: preparing and classifying the recycled master batch for cleaning;
s2, drying the master batch: the master batch is dehydrated and then dried, so that the drying efficiency can be improved;
s3, crushing the master batch: then putting the master batch into a crushing device, and crushing the master batch;
s4, auxiliary material treatment: sieving the high polymer resin before use, and grinding the powdered additive with coarse grains or easy agglomeration into slurry with plasticizer;
s5, weighing the formula: the raw materials are firstly estimated according to the volume of the equipment and the feeding coefficient, the materials are accurately weighed according to the feeding amount, the weighing must be accurate, otherwise, the quality of the product is unstable;
s6, adding the proportioned raw materials into a high-speed kneader for mixing and kneading;
and S7, processing the plastic particles by adopting a double-screw extruder.
Preferably, the general master batch in the step S1 can be cleaned by clean water, the master batch with oil stain can be cleaned by a cleaning agent, and the master batch with severe dyeing needs to be cleaned and decolored by caustic soda (NaOH).
Preferably, in step S4, the powdered polyvinyl chloride is screened by a 40-mesh screen, and the granular polyethylene or polypropylene is screened by a fine-mesh screen with a slightly larger particle size than the resin.
Preferably, the refining apparatus in step S4 is a three-roll mill, and the ratio of general additives to plasticizer in the refining formula is 1: 1, the fineness index of the slurry is 60-80 μm, the formula proportion of the slurry is the ratio of parts by weight, and the plasticizer is DOP with small viscosity generally.
Preferably, the discharge temperature of the raw materials in the step S6 is below 50 ℃ within 5-10min of kneading time.
Preferably, the diameter of the twin-screw extruder in the step S7 is 51-150mm, the temperature of the twin-screw extruder is 130-.
Compared with the prior art, the invention has the beneficial effects that: the plastic particles produced by the invention adopt the recycled waste plastic products as the master batch, thereby being beneficial to environmental protection and reducing the production cost of the plastic particles, further reducing the use cost of the plastic particles, and solving the problems of high manufacturing cost, environmental protection and high use cost caused by the fact that most of the existing plastic particles are made of new high-pressure polyethylene.
Drawings
FIG. 1 is a process flow diagram of the present invention.
Detailed Description
The technical solutions in the embodiments of the present invention will be clearly and completely described below with reference to the drawings in the embodiments of the present invention, and it is obvious that the described embodiments are only a part of the embodiments of the present invention, and not all of the embodiments. All other embodiments, which can be derived by a person skilled in the art from the embodiments given herein without making any creative effort, shall fall within the protection scope of the present invention.
Referring to fig. 1, the present invention provides a technical solution: a plastic particle production process comprises the following steps:
s1, cleaning master batch: preparing and classifying the recycled master batch for cleaning;
s2, drying the master batch: the master batch is dehydrated and then dried, so that the drying efficiency can be improved;
s3, crushing the master batch: then putting the master batch into a crushing device, and crushing the master batch;
s4, auxiliary material treatment: sieving the high polymer resin before use, and grinding the powdered additive with coarse grains or easy agglomeration into slurry with plasticizer;
s5, weighing the formula: the raw materials are firstly estimated according to the volume of the equipment and the feeding coefficient, the materials are accurately weighed according to the feeding amount, the weighing must be accurate, otherwise, the quality of the product is unstable;
s6, processing and kneading: adding the proportioned raw materials into a high-speed kneader for mixing and kneading;
s7, extrusion molding: and processing the plastic particles by adopting a double-screw extruder.
The first embodiment is as follows:
cleaning the master batch: preparing and classifying the recycled master batch for cleaning; and (3) drying the master batch: the master batch is dehydrated and then dried, so that the drying efficiency can be improved; crushing the master batch: then putting the master batch into a crushing device, and crushing the master batch; auxiliary material treatment: sieving the high polymer resin before use, and grinding the powdered additive with coarse grains or easy agglomeration into slurry with plasticizer; weighing the formula: the raw materials are firstly estimated according to the volume of the equipment and the feeding coefficient, the materials are accurately weighed according to the feeding amount, the weighing must be accurate, otherwise, the quality of the product is unstable; processing and kneading: adding the proportioned raw materials into a high-speed kneader for mixing and kneading; extrusion molding: and processing the plastic particles by adopting a double-screw extruder.
Example two:
cleaning the master batch: preparing and cleaning the recycled master batch in a classified manner, wherein the master batch can be cleaned by clean water generally, the master batch with oil stain can be cleaned by a cleaning agent, and the master batch with serious dyeing needs to be cleaned and decolored by caustic soda (NaOH); and (3) drying the master batch: the master batch is dehydrated and then dried, so that the drying efficiency can be improved; crushing the master batch: then putting the master batch into a crushing device, and crushing the master batch; auxiliary material treatment: sieving the high polymer resin before use, and grinding the powdered additive with coarse grains or easy agglomeration into slurry with plasticizer; weighing the formula: the raw materials are firstly estimated according to the volume of the equipment and the feeding coefficient, the materials are accurately weighed according to the feeding amount, the weighing must be accurate, otherwise, the quality of the product is unstable; processing and kneading: adding the proportioned raw materials into a high-speed kneader for mixing and kneading; extrusion molding: and processing the plastic particles by adopting a double-screw extruder.
Example three:
cleaning the master batch: preparing and cleaning the recycled master batch in a classified manner, wherein the master batch can be cleaned by clean water generally, the master batch with oil stain can be cleaned by a cleaning agent, and the master batch with serious dyeing needs to be cleaned and decolored by caustic soda (NaOH); and (3) drying the master batch: the master batch is dehydrated and then dried, so that the drying efficiency can be improved; crushing the master batch: then putting the master batch into a crushing device, and crushing the master batch; auxiliary material treatment: the high polymer resin must be sieved before use, the powder polyvinyl chloride generally adopts a 40-mesh screen, the granular polyethylene or polypropylene is sieved, a fine screen with the particle size slightly larger than that of the resin can be used for sieving, and the powder additive with coarser particles or easy agglomeration is firstly ground into pulp by using a plasticizer; weighing the formula: the raw materials are firstly estimated according to the volume of the equipment and the feeding coefficient, the materials are accurately weighed according to the feeding amount, the weighing must be accurate, otherwise, the quality of the product is unstable; processing and kneading: adding the proportioned raw materials into a high-speed kneader for mixing and kneading; extrusion molding: and processing the plastic particles by adopting a double-screw extruder.
Example four:
cleaning the master batch: preparing and cleaning the recycled master batch in a classified manner, wherein the master batch can be cleaned by clean water generally, the master batch with oil stain can be cleaned by a cleaning agent, and the master batch with serious dyeing needs to be cleaned and decolored by caustic soda (NaOH); and (3) drying the master batch: the master batch is dehydrated and then dried, so that the drying efficiency can be improved; crushing the master batch: then putting the master batch into a crushing device, and crushing the master batch; auxiliary material treatment: the high polymer resin must be sieved before use, the powder polyvinyl chloride generally adopts a 40-mesh screen, the granular polyethylene or polypropylene is sieved, a fine screen with the grain diameter being slightly larger than that of the resin can be sieved, the powder additive with coarser grains or easy agglomeration is firstly ground by a plasticizer, the grinding equipment is a three-roll grinder, the ratio of the grinding formula to the plasticizer is generally 1: 1, the fineness index of the slurry is 60-80 μm, the formula proportion of the slurry is the ratio of parts by weight, and the plasticizer is DOP with small viscosity generally; weighing the formula: the raw materials are firstly estimated according to the volume of the equipment and the feeding coefficient, the materials are accurately weighed according to the feeding amount, the weighing must be accurate, otherwise, the quality of the product is unstable; processing and kneading: adding the proportioned raw materials into a high-speed kneader for mixing and kneading; extrusion molding: and processing the plastic particles by adopting a double-screw extruder.
Example five:
cleaning the master batch: preparing and cleaning the recycled master batch in a classified manner, wherein the master batch can be cleaned by clean water generally, the master batch with oil stain can be cleaned by a cleaning agent, and the master batch with serious dyeing needs to be cleaned and decolored by caustic soda (NaOH); and (3) drying the master batch: the master batch is dehydrated and then dried, so that the drying efficiency can be improved; crushing the master batch: then putting the master batch into a crushing device, and crushing the master batch; auxiliary material treatment: the high polymer resin must be sieved before use, the powder polyvinyl chloride generally adopts a 40-mesh screen, the granular polyethylene or polypropylene is sieved, a fine screen with the grain diameter being slightly larger than that of the resin can be sieved, the powder additive with coarser grains or easy agglomeration is firstly ground by a plasticizer, the grinding equipment is a three-roll grinder, the ratio of the grinding formula to the plasticizer is generally 1: 1, the fineness index of the slurry is 60-80 μm, the formula proportion of the slurry is the ratio of parts by weight, and the plasticizer is DOP with small viscosity generally; weighing the formula: the raw materials are firstly estimated according to the volume of the equipment and the feeding coefficient, the materials are accurately weighed according to the feeding amount, the weighing must be accurate, otherwise, the quality of the product is unstable; processing and kneading: adding the proportioned raw materials into a high-speed kneader for mixing and kneading, wherein the discharge temperature is below 50 ℃ after the raw materials are kneaded for 5-10 min; extrusion molding: and processing the plastic particles by adopting a double-screw extruder.
Example six:
cleaning the master batch: preparing and cleaning the recycled master batch in a classified manner, wherein the master batch can be cleaned by clean water generally, the master batch with oil stain can be cleaned by a cleaning agent, and the master batch with serious dyeing needs to be cleaned and decolored by caustic soda (NaOH); and (3) drying the master batch: the master batch is dehydrated and then dried, so that the drying efficiency can be improved; crushing the master batch: then putting the master batch into a crushing device, and crushing the master batch; auxiliary material treatment: the high polymer resin must be sieved before use, the powder polyvinyl chloride generally adopts a 40-mesh screen, the granular polyethylene or polypropylene is sieved, a fine screen with the grain diameter being slightly larger than that of the resin can be sieved, the powder additive with coarser grains or easy agglomeration is firstly ground by a plasticizer, the grinding equipment is a three-roll grinder, the ratio of the grinding formula to the plasticizer is generally 1: 1, the fineness index of the slurry is 60-80 μm, the formula proportion of the slurry is the ratio of parts by weight, and the plasticizer is DOP with small viscosity generally; weighing the formula: the raw materials are firstly estimated according to the volume of the equipment and the feeding coefficient, the materials are accurately weighed according to the feeding amount, the weighing must be accurate, otherwise, the quality of the product is unstable; processing and kneading: adding the proportioned raw materials into a high-speed kneader for mixing and kneading, wherein the discharge temperature is below 50 ℃ after the raw materials are kneaded for 5-10 min; extrusion molding: the plastic particles are processed by adopting a double-screw extruder, the diameter of the double-screw extruder is 51-150mm, the temperature of the double-screw extruder is sequentially 130-.
The above description is only for the preferred embodiment of the present invention, but the scope of the present invention is not limited thereto, and any person skilled in the art should be considered to be within the technical scope of the present invention, and the technical solutions and the inventive concepts thereof according to the present invention should be equivalent or changed within the scope of the present invention.
Claims (6)
1. A plastic particle production process is characterized in that: the method comprises the following steps:
s1, cleaning master batch: preparing and classifying the recycled master batch for cleaning;
s2, drying the master batch: the master batch is dehydrated and then dried, so that the drying efficiency can be improved;
s3, crushing the master batch: then putting the master batch into a crushing device, and crushing the master batch;
s4, auxiliary material treatment: sieving the high polymer resin before use, and grinding the powdered additive with coarse grains or easy agglomeration into slurry with plasticizer;
s5, weighing the formula: the raw materials are firstly estimated according to the volume of the equipment and the feeding coefficient, the materials are accurately weighed according to the feeding amount, the weighing must be accurate, otherwise, the quality of the product is unstable;
s6, processing and kneading: adding the proportioned raw materials into a high-speed kneader for mixing and kneading;
s7, extrusion molding: and processing the plastic particles by adopting a double-screw extruder.
2. A plastic pellet production process as claimed in claim 1 wherein: in the step S1, the general master batch can be cleaned by clean water, the master batch with oil stain can be cleaned by a cleaning agent, and the master batch with serious dyeing needs to be cleaned and decolored by caustic soda (NaOH).
3. A plastic pellet production process as claimed in claim 1 wherein: in the step S4, the powdered polyvinyl chloride is generally screened by a 40-mesh screen, and the granular polyethylene or polypropylene is screened by a fine-mesh screen with a slightly larger particle size than the resin.
4. A plastic pellet production process as claimed in claim 1 wherein: the refining equipment in the step S4 is a three-roll grinder, and the proportion of general additives and plasticizers in the refining formula is 1: 1, the fineness index of the slurry is 60-80 μm, the formula proportion of the slurry is the ratio of parts by weight, and the plasticizer is DOP with small viscosity generally.
5. A plastic pellet production process as claimed in claim 1 wherein: in the step S6, the raw material kneading time is 5-10min, and the discharging temperature is below 50 ℃.
6. A plastic pellet production process as claimed in claim 1 wherein: the diameter of the twin-screw extruder in the step S7 is 51-150mm, the temperature of the twin-screw extruder is 130-.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201911028297.1A CN110744744A (en) | 2019-10-28 | 2019-10-28 | Plastic particle production process |
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| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201911028297.1A CN110744744A (en) | 2019-10-28 | 2019-10-28 | Plastic particle production process |
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| CN110744744A true CN110744744A (en) | 2020-02-04 |
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| CN201911028297.1A Pending CN110744744A (en) | 2019-10-28 | 2019-10-28 | Plastic particle production process |
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Cited By (4)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN112060395A (en) * | 2020-09-16 | 2020-12-11 | 合肥市丽红塑胶材料有限公司 | Plastic particle production process |
| CN112519031A (en) * | 2020-12-01 | 2021-03-19 | 曲静 | Plastic master batch production process and intermediate material thereof |
| CN113831626A (en) * | 2021-10-11 | 2021-12-24 | 蕊诺新材料泗阳有限公司 | Preparation method of polyethylene reinforced modified plastic particles |
| CN114193666A (en) * | 2021-12-20 | 2022-03-18 | 界首市双特新材料科技有限公司 | Method for recycling, modifying and regenerating waste ABS (acrylonitrile butadiene styrene) composite plastic |
Citations (2)
| 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 |
| CN104290214A (en) * | 2014-08-21 | 2015-01-21 | 天津鑫泰诺高分子科技有限公司 | Regenerative plastic particle formula and manufacturing method thereof |
-
2019
- 2019-10-28 CN CN201911028297.1A patent/CN110744744A/en active Pending
Patent Citations (2)
| 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 |
| CN104290214A (en) * | 2014-08-21 | 2015-01-21 | 天津鑫泰诺高分子科技有限公司 | Regenerative plastic particle formula and manufacturing method thereof |
Cited By (4)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN112060395A (en) * | 2020-09-16 | 2020-12-11 | 合肥市丽红塑胶材料有限公司 | Plastic particle production process |
| CN112519031A (en) * | 2020-12-01 | 2021-03-19 | 曲静 | Plastic master batch production process and intermediate material thereof |
| CN113831626A (en) * | 2021-10-11 | 2021-12-24 | 蕊诺新材料泗阳有限公司 | Preparation method of polyethylene reinforced modified plastic particles |
| CN114193666A (en) * | 2021-12-20 | 2022-03-18 | 界首市双特新材料科技有限公司 | Method for recycling, modifying and regenerating waste ABS (acrylonitrile butadiene styrene) composite plastic |
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Application publication date: 20200204 |