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Multi-stage cleaning device and method suitable for various waste plastics

A cleaning device and waste plastic technology, which is applied in the field of waste plastic recycling, can solve problems such as low efficiency, large water consumption, and incomplete separation, and achieve the effects of saving electricity, saving land, and reducing material transportation links

Active Publication Date: 2016-12-07
冯愚斌
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  • Summary
  • Abstract
  • Description
  • Claims
  • Application Information

AI Technical Summary

Problems solved by technology

But this method is inefficient, the separation is not complete, and it consumes a lot of water

Method used

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  • Multi-stage cleaning device and method suitable for various waste plastics
  • Multi-stage cleaning device and method suitable for various waste plastics
  • Multi-stage cleaning device and method suitable for various waste plastics

Examples

Experimental program
Comparison scheme
Effect test

Embodiment 1

[0042] This embodiment is a multi-stage cleaning device suitable for various waste plastics, mainly used for cleaning rigid waste plastic fragments. Such as figure 1 As shown, the multi-stage cleaning device includes a belt conveyor 1, a crusher 2, a washing cage 3, a rinsing tank 4, and a terminal dehydrator 5 connected in sequence. A first-stage circulating water treatment pool is provided under the washing cage, and the first-stage circulation The water treatment pool is respectively connected to the feed end of the crusher and the washing cage through the first-stage return pipe, and the second-stage circulating water treatment pool is installed under the terminal dehydrator, and the second-stage circulating water treatment pool is connected to the The rinsing tank is connected; the first-stage circulating water treatment pool and the second-stage circulating water treatment pool are set independently of each other.

[0043] Among them, according to the needs of the actua...

Embodiment 2

[0057] This embodiment is a multi-stage cleaning device suitable for various waste plastics, mainly used for cleaning flexible waste plastic fragments, such as image 3 Shown, compared with embodiment 1, its difference has the following two points:

[0058] 1. In the washing cage, the push rod adopts a spiral push rod, and the top of the outer cylinder is set as an open structure. There is a nozzle above the opening. During the transportation of waste plastic fragments, the waste plastic fragments pass through the cleaning water from the feed end. To clean, spray cleaning water into the outer cylinder through the nozzle. At this time, the waste plastic fragments can be cleaned more fully. After cleaning, all the cleaning water is discharged from the hole at the bottom of the outer cylinder to the circulating water treatment pool.

[0059] 2. The rinsing tank includes the tank body and the air distribution pipe, such as Figure 4 As shown, the air distribution pipe 4-2 is arra...

Embodiment 3

[0072] This embodiment is a multi-stage cleaning device suitable for various waste plastics, and is mainly used for cleaning flexible waste plastic fragments. Compared with Example 2, its difference is that, as Figure 5 As shown, there is also a first-stage dehydrator 12 between the washing cage and the rinsing tank, and the first-stage dehydrator is also located above the first-stage circulating water treatment pool, and the water outlet of the first-stage dehydrator is connected to the first-stage circulation The water treatment pool is connected. The addition of a first-stage dehydrator can completely separate the cleaning water contained in the waste plastic fragments before they enter the rinsing tank, minimize the amount of cleaning water entering the rinsing tank, and maintain the independence between the two stages of cleaning to prevent cleaning Water contaminates the fluid medium in the rinse tank.

[0073] The present embodiment realizes a kind of cleaning method...

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Abstract

The invention discloses a multilevel cleaning device and a multilevel cleaning method for various waste plastics. The multilevel cleaning device comprises a belt conveyer, a crusher, a washing cage, a rinsing tank and a terminal dehydrator, which are connected sequentially, wherein a primary circulating water treating pond is arranged under the washing cage and is connected with the crusher and the feeding end of the washing cage by a primary water return pipe respectively, and a secondary circulating water treating pond is arranged under the terminal dehydrator and is connected with the rinsing tank by a secondary water return pipe; the multilevel cleaning method comprises the steps of crushing waste plastics, primarily cleaning the crushed waste plastics in the washing cage and separating from cleaning water, then feeding the cleaned waste plastics into the rinsing tank for further cleaning with fluid mediums, and finally, feeding the cleaned waste plastics into the terminal dehydrator for dehydration, wherein the primary circulating water treating pond recycles the cleaning water, and the secondary circulating water treating pond recycles the fluid mediums. The device and the method can separately manage the cleaning water or the fluid mediums in different treating levels, so that the fluid mediums and the cleaning water can be circulated conveniently.

Description

technical field [0001] The invention relates to the technical field of recycling waste plastics, in particular to a multi-stage cleaning device and method suitable for various waste plastics. Background technique [0002] Waste plastic crushing, sorting and cleaning equipment is commonly used in the field of waste plastic recycling. Due to the low gross profit margin of this industry, it is difficult to apply high-priced production and process control equipment. In the existing waste plastic crushing, sorting and cleaning equipment, most of them use static fluid medium, and the purpose of cleaning and sorting is achieved by mechanically pulling plastic fragments floating on the surface of the fluid medium. But this method is inefficient, the separation is not complete, and it consumes a lot of water. Contents of the invention [0003] The purpose of the present invention is to overcome the deficiencies of the prior art and provide a multi-stage cleaning device suitable fo...

Claims

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Application Information

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Patent Type & Authority Patents(China)
IPC IPC(8): B29B17/00B29B17/04B08B3/06
CPCY02W30/52Y02W30/62
Inventor 冯愚斌冯治平
Owner 冯愚斌
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