Solid heat carrier furnace with controllable solid circulation amount in anaerobic pyrolysis environment

Abstract

A solid heat carrier furnace with the controllable solid circulation amount in the anaerobic pyrolysis environment comprises a furnace body, and a slag discharge pipe and an air distribution device are arranged at the bottom of the furnace body; and heat carrier feeding equipment is arranged on the rear wall of the furnace body, a feeding control valve and a feeding inclined pipe are arranged on the lower portion of the heat carrier feeding equipment, and the feeding inclined pipe is connected with the furnace body. The top front wall of the furnace body is connected with the cyclone separator; and the lower part of the cyclone separator is sequentially connected with a surge bin, a blanking controller, a solid flowmeter, a reactor, a middle bin, material returning equipment and a material returning pipe, and the material returning pipe is connected with the furnace body to form a circulating channel of a solid heat carrier path.

Description

technical field [0001] The invention relates to the field of heat carrier furnaces, in particular to a solid heat carrier furnace with controllable solid circulation in an aerobic pyrolysis environment. Background technique [0002] The pyrolysis treatment technology of domestic waste in an oxygen-free environment can reduce the waste discharge of domestic waste, and almost no dioxin is produced during the treatment process. The combustible oil after pyrolysis treatment is a clean and environmentally friendly liquid fuel. The final pyrolysis gas is mainly CO, CH4, H2, etc., which can be used not only as an alternative fuel for natural gas, but also as a raw material for various chemical products. The direct contact pyrolysis of solid heat carrier and domestic waste has the advantages of high heat capacity per unit volume of solid heat carrier, high thermal efficiency, recyclability, and aerobic pyrolysis. Therefore, using high-temperature solid medium as a heat carrier to p...

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Problems solved by technology

The recycled material may form a lumpy slag, which will block the feeding equipment and cause system failure, and the accuracy of the returned material volume controlled by the air volume is low, and it is almost impossible to achieve precise control of the circulating volume

[0007] At present, there is no solid heat carrier furnace that can achieve a continuous and stable anaerobic environment, and at the same time realize the precise control of the solid heat carrier circulation, which hinders the development of solid heat carrier pyrolysis of domestic waste technology.

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