Resin powder and metal particle separation method and apparatus for achieving resin powder and metal particle separation method

Abstract

The present invention discloses a resin powder and metal particle separation method and an apparatus for achieving the method. According to the resin powder and metal particle separation method, an upwardly flowing water flow is generated on the bottom portion of a water container to make the resin powder and metal particle mixture downwardly be added to the upwardly flowing water flow; and the specific gravity of the resin powder is smaller than the specific gravity of the metal particles, such that the resin powder can be washed out of the water container under the impact effect of the water flow while the metal particles can sink into the bottom portion of the water container under the gravity effect so as to achieve the separation of the resin powder and the metal particles. According to the present invention, with the specific gravity difference between the resin powder and the metal, the separation difficult problem of the resin powder and the metal is solved, the advantages of convenient operation, easy scalization achievement, low cost, environmental protection and the like are provided, the important contribution is provided for solving of the environmental protection problem of the waste circuit boards, and the source recovery of the resin powder and the metal is achieved.

Description

technical field [0001] The invention relates to a recycling technology of resin powder, in particular to a separation method of resin powder and metal particles and a device for realizing the separation method. Background technique [0002] Now with the continuous improvement of people's living standards, the amount of waste household appliances is also increasing, and a large number of waste circuit boards will be produced in the dismantling of waste household appliances. Now adopt the method of physical pulverization to pulverize the waste circuit board first, and then separate the resin powder and other metals in it by winnowing. However, during air selection, some metal particles will be entrained in the resin powder, and the general metal content is 3 to 10%. These metals contain solder, which contains lead. Due to the presence of lead, resin powder is characterized as a hazardous waste product. In order to make full use of these resin powders, the Chinese Patent Off...

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Problems solved by technology

In order to make full use of these resin powders, the Chinese Patent Office published a utility model patent titled "Production Equipment for Non-metallic Modified Powder of Waste Circuit Boards" on December 25, 2013, with the patent number CN201320390695, which discloses a waste circuit board The production equipment of non-metallic modified powder materials, although this device provides a way to realize the resource utilization of waste materials, but because this technology does not separate the metals in the resin powder, it not only does not comply with the production of national environmental protection regulations Regulations, but also a waste of precious non-ferrous metal resources

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