Feeding and discharging system and method for electronic waste pyrolysis

Abstract

The invention provides a novel feeding and discharging system and method for electronic waste pyrolysis in order to overcome the defects in the prior art. The system comprises a feeding device, a material bin, a middle storage tank, a reactor, a cooling chamber and a gas and water separator, wherein the feeding device is located above the material bin and is connected with a feeding port of the material bin; an inlet of the middle storage tank is connected with a discharging port in the lower portion of the material bin; a lower portion outlet of the middle storage tank is connected with a feeding port in the upper portion of the reactor; a slag material outlet in the lower portion of the reactor is sequentially connected with the cooling chamber and the gas and water separator; and a gas outlet of the gas and water separator is connected with a feeding port of the reactor. Thus, the system can achieve feeding and discharging under the condition that atmosphere fluctuation in the reactor is not caused and has the beneficial effects of being high in pyrolysis efficiency, capable of achieving continuous feeding and discharging, high in automation degree, easy and convenient to operate, stable in heat resource, pressure and atmosphere in the whole system, remarkable in energy saving effect and the like.

Description

technical field [0001] The invention relates to a material feeding and discharging system and method, in particular to a material feeding and discharging system and method of an electronic waste pyrolysis reaction system that does not affect the anaerobic or oxygen-poor atmosphere in a pyrolysis furnace. Background technique [0002] The development of economy and the advancement of science and technology make the electronic industry develop rapidly, so electronic waste has become one of the fastest growing wastes in the world. Electronic waste, commonly known as electronic waste, is mainly composed of discarded household appliances, communication tools, battery products, etc., covering waste electronic and electrical equipment in various fields of life and electronic and electrical waste or scrap products produced in industrial manufacturing fields. The composition is complex and there are many types. . It contains a large amount of available resources such as polyester, p...

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Problems solved by technology

However, there are still the following disadvantages: (1) A large amount of externally loaded gas enters the reactor along with the solid powder, resulting in too much impurity gas content in the gas product produced by the reaction or a certain non-effective gas component, which affects the gas quality and causes the later gas product The process is complicated, and the construction cost and operation cost are expensive; (2) It is only suitable for feeding solid powder with small particle size, and cannot meet the continuous feeding requirements of solid particles with large particle size

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