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Wet crushing and separation technique for waste electric wire cable

A wire and cable, wet crushing technology, applied in the direction of circuit, electrical components, electronic waste recycling, etc., can solve the problems of adverse health effects of workers, expensive equipment, etc., to avoid splashing and improve the working environment

Active Publication Date: 2016-12-07
JIANGXI GREEN ECO MFG RESOURCE CYCLE
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  • Abstract
  • Description
  • Claims
  • Application Information

AI Technical Summary

Problems solved by technology

As early as in the above two schemes, dry separation of copper rice and plastic granules was adopted, and the equipment used was expensive, and because high-pressure fans were often used in the process, it was easy to dry dust and static electricity in the working environment, which was harmful to workers. adverse health effects

Method used

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  • Wet crushing and separation technique for waste electric wire cable

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Embodiment 1

[0021] The main materials of waste wires and cables are copper wires, plastic skins covering the outer layers of copper wires, and other metals mixed into the wires. This embodiment illustrates this process from the perspective of copper recovery.

[0022] The process of recovering copper is as follows:

[0023] First, the waste wires and cables are crushed, using a wet copper rice machine to crush them into copper rice size. At this time, under the crushing action of the copper rice machine, the waste wires and cables are separated from the inner core and insulation skin, forming a mixture of copper rice, plastic and other impurities. The mixed material is sent to the water separation station.

[0024] Then carry out water selection. In the flotation tank, copper rice, plastics and other impurities are rolled in the flotation tank due to running water or agitation. Floating plastics, a small amount of wire fluff and a small amount of fiber float on the water surface of the fl...

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Abstract

The invention discloses a wet crushing and separation technique for a waste electric wire cable. The technique comprises the steps of crushing, and concentrating by using water. According to the method, separation of copper grains and plastic can be implemented in a water environment, generation of swirling dust and splashing materials can be avoided, and the working environment of workers can be improved. Furthermore, two times of separation, water concentration and gravity separation, are adopted, so that the copper grains and the plastic can be separated, the light floating plastic and the heavy sinking plastic can also be separated, and thus recycle quality of copper and plastic is improved.

Description

technical field [0001] The invention relates to the field of recycling waste articles, is suitable for crushing and separating unit wires of communication cables, and in particular relates to a wet crushing and sorting process for waste electric wires and cables. Background technique [0002] At present, there are two main types of crushing and sorting processes for waste cables in China: wet method and dry method. [0003] Chinese patent document CN 102360644A discloses "a process for separating and recycling waste wires and cables". The method adopted is to use high-speed rotation to classify and agglomerate metals and plastics, then discharge them with high-pressure air, and then use a rotary screen to remove the fiber materials. Sorting is then used to separate the copper from the plastic. Chinese patent document CN101367084A discloses a kind of "processing method of recycling waste wire and cable to produce copper rice grains", the method it adopts is the pure copper r...

Claims

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Application Information

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Patent Type & Authority Applications(China)
IPC IPC(8): H01B15/00
CPCH01B15/00Y02W30/82
Inventor 许开华鲁习金
Owner JIANGXI GREEN ECO MFG RESOURCE CYCLE
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