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Treatment method of waste plastics for reuse

A technology of waste plastics and treatment methods, which is applied in the field of recycling waste plastics, can solve the problems of high transportation costs of waste, secondary pollution of the environment, air pollution, etc., and achieves the effects of convenient operation, solving pollution problems, and reducing waste

Active Publication Date: 2018-12-25
赵世红
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  • Summary
  • Abstract
  • Description
  • Claims
  • Application Information

AI Technical Summary

Problems solved by technology

[0002] With the continuous development of the economy and society, the application of plastic products is becoming more and more extensive, and more and more waste plastic products are discarded, including plastic bags of various materials and some hard plastic packaging. It is not feasible to mix them together as compost; burying them deeply will cause secondary pollution to the environment when earthquakes and floods occur; and burning them will produce toxic and harmful gases. method, but there is still a certain amount of air pollution, and this method requires a large investment and high cost of centralized transportation of garbage; therefore, the clean recycling and resource utilization of waste plastics has become a hot issue in recent years

Method used

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  • Treatment method of waste plastics for reuse

Examples

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Effect test

Embodiment 1

[0015] Example 1, use a shredder to process waste plastics into plastic fragments with a size of 3-5cm in length and 3-5cm in width; stir and dry at low temperature, the drying temperature is 50°C, the stirring rate is 80 rpm, and the drying The time is 10 minutes. Use a pulverizer to crush the dried plastic fragments into plastic fragments with a size of 2-3mm and 2-3mm in width; mix the plastic fragments with fine sand and high-strength cement, add appropriate amount of water and stir with a mixer, The stirring rate is 25 rev / min, the stirring time is 20min, the mass percentage of plastic powder is 5%, the mass percentage of fine sand is 25%, and the mass percentage of high-strength cement is 70%; Stir the resulting mixture and extrude to 1 cm 3 Spherical body of about size; the extruded product is used as concrete aggregate after solidification, and its compressive strength is 35-40MPa.

Embodiment 2

[0016] Example 2, the discarded plastics are concentrated and treated with a shredder to grow 3-5cm long and 3-5cm wide plastic fragments; low-temperature stirring and drying, the drying temperature is 40°C, the stirring rate is 50 rpm, and the drying The time is 10 minutes. Use a pulverizer to crush the dried plastic fragments into plastic fragments with a size of 2-3mm and 2-3mm in width; mix the plastic fragments with fine sand and high-strength cement, add appropriate amount of water and stir with a mixer, The stirring rate is 35 rev / min, the stirring time is 20min, the mass percentage of plastic powder is 8%, the mass percentage of fine sand is 22%, and the mass percentage of high-strength cement is 70%; Stir the resulting mixture and extrude to 1 cm 3 Spheroids of about size; extruded products are used as coagulation aggregates after solidification, and their compressive strength is 30-35MPa.

Embodiment 3

[0017] Example 3, use a shredder to process the discarded plastics together into plastic fragments with a size of 3-5cm and a width of 3-5cm; stir and dry at low temperature, the drying temperature is 45°C, and the stirring rate is 65 rpm. The machine crushes the dried plastic fragments into plastic fragments with a size of 2-3mm and a width of 2-3mm; the shredder shreds the dried plastic fragments again to a size of 1-2cm in length and 1-2cm in width Plastic fragments are added to the air-entrained concrete slurry at a mass ratio of 10%, and the air-entrained concrete block is made after being stirred evenly, and the stirring rate is 25 rpm.

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Abstract

The invention discloses a treatment method of waste plastics for reuse. The treatment method is characterized by including: subjecting the waste plastics to shredding, cleaning, low-temperature stirring and drying and smashing to obtain plastics scraps, taking the plastics scraps and high-strength cement as raw materials, adding appropriate amount of water into the raw materials, performing even blending with a blender, extruding the raw materials into a sphere about 1cm<3> in size with an extruder, and allowing a molded product to serve as a cement additive after solidification; adding the waste plastics into aerated concrete slurry after shredded for twice to prepare an aerated concrete block. The treatment method has the advantages that the waste plastics is treated by a physical method, and the waste plastics cannot produce peculiar smell after cleaning and low-temperature drying and cannot cause pollution to the environment; the method is less in investment and convenient in operation, rubbish is reduced, the problem about pollution of the waste plastics to the environment is solved, the waste is reused, and development of circular economy is favorably promoted.

Description

technical field [0001] The invention relates to the technical field of waste comprehensive utilization, in particular to a method for reusing waste plastics. Background technique [0002] With the continuous development of the economy and society, the application of plastic products is becoming more and more extensive, and more and more waste plastic products are discarded, including plastic bags of various materials and some hard plastic packaging. It is not feasible to mix them together as compost; burying them deeply will cause secondary pollution to the environment when earthquakes and floods occur; and burning them will produce toxic and harmful gases. method, but there is still a certain amount of pollution to the air, and this method has a large investment and a high cost of centralized transportation of garbage; therefore, the clean recovery and resource utilization of waste plastics has become a hot issue in recent years. Contents of the invention [0003] Aiming...

Claims

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Application Information

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IPC IPC(8): C04B28/00C04B18/20
CPCC04B18/20C04B28/00C04B2111/00017C04B2201/20C04B2201/32C04B2201/50C04B14/06Y02W30/91
Inventor 赵世红
Owner 赵世红
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