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Liquid density sorting machine and application method thereof as well as waste plastic crushing, cleaning and sorting equipment and application method thereof

A liquid density and sorting machine technology, applied in the field of cleaning, separation process equipment, and high-efficiency crushing, can solve the problems of not mentioning the removal of impurities such as soil, limited cleaning function, etc., to achieve convenient operation, simple structure, and reduce debris. Effect

Pending Publication Date: 2022-05-06
CHINA PETROLEUM & CHEM CORP +1
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  • Summary
  • Abstract
  • Description
  • Claims
  • Application Information

AI Technical Summary

Problems solved by technology

[0005] CN102574304A describes a sorting and separating method and sorting and separating equipment for waste plastics. Waste plastics are used as waste, especially in urban landfills, which contain a large amount of impurities such as soil. Cleaning is essential in the pretreatment of waste plastics This technology only describes the crushing and sorting technology in detail, but does not mention how to efficiently remove impurities such as soil in plastics, so there are certain limitations in application
[0007] CN107597794A describes an integrated device for garbage sorting, recovery and treatment. This technology has a limited cleaning function for treating impurities such as soil and sand in urban landfill waste plastics.

Method used

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  • Liquid density sorting machine and application method thereof as well as waste plastic crushing, cleaning and sorting equipment and application method thereof
  • Liquid density sorting machine and application method thereof as well as waste plastic crushing, cleaning and sorting equipment and application method thereof
  • Liquid density sorting machine and application method thereof as well as waste plastic crushing, cleaning and sorting equipment and application method thereof

Examples

Experimental program
Comparison scheme
Effect test

Embodiment 1

[0078] Example 1 illustrates the structure and effect of the liquid density separator and waste plastic cleaning and sorting equipment provided by the invention.

[0079] Adopt attached Figure 3 The waste plastic cleaning and sorting equipment shown in the figure carries out the crushing, cleaning and separation tests of waste plastics. The size of the first double shaft shredder is 400 × 400mm, 300mm high, 200mm diameter of tearing wheel; The structure of the second biaxial shredder is the same as that of the first biaxial shredder, and the rotating shaft of the second biaxial shredder and the rotating shaft of the first biaxial shredder are staggered by 90 ° from the top.

[0080] The rotary knife chopper has a diameter of 250mm and a length of 250mm, and the three rotary knives are evenly distributed.

[0081] The structure of the spiral hair roller cleaning machine is shown in the attachment Figure 5 As shown, the total length is 1500mm, the length of rotating shaft is 1200mm,...

Embodiment 2

[0096] Example 2 illustrates the structure and effect of the liquid density separator and waste plastic cleaning and sorting equipment provided by the invention.

[0097] The liquid density sorter and waste plastic cleaning and sorting equipment in example 1 are used for the experiment. In example 1, during the working process, the rotating speed of the first biaxial shredder and the second biaxial shredder is 250r / min. The rotating speed of the rotary knife chopper is 480r / min, and the rotating speed of the spiral hair stick cleaning machine is 60R / min.

[0098] The difference is that the waste plastic raw materials used are the separation of PVC pipe, PET bottle, PPR pipe and PS fast food box, in which the mass composition of PVC pipe and PET bottle accounts for 32.7wt%, PPR pipe and PP fast food box 39.4wt%, and the content of impurities such as soil is about 27.9wt%.

[0099] The treatment capacity of waste plastics (including impurities, filtered out with 30 mesh filter...

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Abstract

The invention discloses a liquid density sorting machine and an application method thereof, and waste plastic crushing, cleaning and sorting equipment and an application method thereof. The liquid density sorting machine is composed of a conical hopper, a light plastic particle outlet in the upper portion of the conical hopper, a circulating scraping component arranged at the light plastic particle outlet, a rotary separating valve located at the bottom of the conical hopper and an overflow pipe arranged on the upper portion of the conical hopper, and the bottom of the circulating scraping component and an inlet of the overflow pipe are located on the same plane. Wherein a heavy plastic particle outlet is formed in the bottom of the rotary separating valve, and a liquid discharging hole is formed in the side face of the rotary separating valve. The liquid density sorting machine provided by the invention is used for separating waste plastic particles and liquid with different densities, and the plastic crushing, cleaning and sorting equipment provided by the invention can realize continuous crushing, cleaning and sorting processes of waste plastic.

Description

technical field [0001] The technology relates to an equipment and method for recycling and reusing waste plastics, in particular to the equipment and method for efficient crushing, cleaning and separation of waste plastics before recycling. Background technology [0002] Plastic has become the main material in many fields such as health, building decoration and electronic products because of its stable performance, wide use, light weight and low price. Due to their short service life cycle, many plastics become waste after a certain period of use. However, due to their stable performance and long degradation time, humans have to live together with these wastes for a long time. They seriously affect human health. From 1950 to 2015, the global total production of polymers and fibers reached 7.8 billion tons, about 80% of which became landfills. [0003] On the other hand, waste plastics can also be recycled as a resource. For example, polyethylene (PE) can release 43mj / kg heat af...

Claims

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Application Information

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IPC IPC(8): B29B17/02B29B17/04
CPCB29B17/02B29B17/0412B29B2017/0244B29B2017/0203B29B2017/044Y02W30/62Y02W30/52
Inventor 田志鸿朱振兴韩颖何金龙刘亚林李学锋张翊
Owner CHINA PETROLEUM & CHEM CORP
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