Novel crushing and separating technique for metal and non-metal in composite material

Abstract

The invention relates to a novel technics for separating metal materials from non-metallic materials by crushing the composite materials. The composite materials containing metal and non-metallic materials is first transmitted through manual force or a belt transmission device into a crusher and is broken into coarse materials which are transmitted into a breaking and separating host through a cyclone separator, a coarse material storage hopper and a spiral feeder; the bottom of the breaking and separating host recycles the metal powder, while the top of the breaking and separating host is used for transmitting powder with the metal powder as the main constituent; the powder is then underwent a series processions such as transmission, multi-stage separation, grading, dust removal, recycling and waste gas purification through a grader, a crushing system cyclone separator, a pulse cartridge dust collector, a high-pressure fan, a waste gas treatment washing tower and a negative-pressure pipeline. The novel technics provided by the invention has optimized procession, energy conservation and consumption reduction, large capacity, high metal recovery, environmental protection and significant economic benefits.

Description

Technical field: [0001] The invention relates to a material processing technology, in particular to a new crushing and separation technology of metal and non-metal substances in composite materials. Background technique: [0002] With the acceleration of the replacement of electronic products, the eliminated and scrapped circuit boards and the leftovers during production have formed a huge electronic circuit board waste. However, the treatment of waste electronic circuit boards in the world is still a big problem. If landfill, water washing, incineration and other methods are used for disposal, the metals and high-molecular organic matter in it are difficult to degrade under natural conditions, and harmful components enter the environment through water, air, and soil, causing potential and long-term damage to human health and the ecological environment. , irreversible damage. [0003] Before the invention and implementation of this new process, there was no new process for...

AI Technical Summary

Problems solved by technology

If landfill, water washing, incineration and other methods are used for disposal, the metals and high-molecular organic matter in it are difficult to degrade under natural conditions, and harmful components enter the environment through water, air, and soil, causing potential and long-term damage to human health and the ecological environment. , irreversible hazard

[0003] Before the invention and implementation of this new process, there was no new process for recovering and processing metal and non-metal substances in electronic waste composite materials by one-step pulverization and separation at home and abroad.

Images