Circulating gasifying and pyrolyzing incinerator system and incinerating method

Abstract

The invention discloses a circulating gasifying and pyrolyzing incinerator system and an incinerating method. The circulating gasifying and pyrolyzing incinerator system comprises an incinerator A, an incinerator B and an incinerator C. The incinerating method comprises the following steps: loading the waste material to be incinerated in the shell of the incinerator A; igniting an igniting combustion-supporting device which is arranged at the bottom of the grate of the incinerator A to combust the waste material in a secondary combusting chamber; exchanging the heat with an heat exchanger, and providing the heat for the incinerator B through a heat exchanging pipe; gasifying the waster material to be incinerated in the incinerator B; after the water material in the incinerator A being fully combusted and decomposed, igniting an igniting combustion-supporting device for the incinerator B to combust and decompose the waste material pyrolyzed and gasified in the incinerator B; and pyrolyzing and gasifying the water material in the incinerator C by part of the heat through the heat exchanging pipe. Because the waste materials are pyrolyzed and decomposed due to the circulating combustion by the incinerator A, the incinerator B and the incinerator C, the time and the energy are saved, and the utilization rate of the fuel is improved due to the continuous running of the incinerator A, the incinerator B and the incinerator C in a sealed way. The incinerating method has great popularization value in the field of the circulating gasifying and pyrolyzing incinerator system.

Description

Technical field: [0001] The invention relates to an incinerator, in particular to a circulating gasification dry distillation incinerator and an incineration method for fine-grained, muddy, high-viscosity waste. Background technique: [0002] The types and shapes of solid waste are quite different, such as lumpy and granular waste, muddy sludge, waste with a lot of combustible content, and waste that cannot spontaneously combust and needs to be fueled to support combustion, etc. The form and combustion characteristics of general waste are the main basis for determining the incineration process and its incinerator type. If the waste has a certain shape and can be placed on the grate, and the combustion form is carried out in the form of surface combustion and decomposition combustion, the grate incinerator can be used; but if the waste particles are fine or muddy, If it cannot be placed on the grate, it is necessary to use a hearth type incinerator. However, a large amount ...

AI Technical Summary

Problems solved by technology

[0004] (1) The above patent wastes are all placed on the reciprocating grate or on the moving grate when burning, because most of the waste to be burned is muddy (such as asphalt), etc., and has a high viscosity during combustion, so it is better to place it on the reciprocating grate or on the moving grate. Impossible to move at all, often resulting in incomplete combustion of the waste;

[0005] (2) Since the solid combustion zone and the oxygen-free carbonization zone adopt an integrated structure, the waste cannot be completely gasified due to the short time during the carbonization gasification, resulting in the insufficient pyrolysis of the cooling tar and oil contained in the carbonization layer gas;

[0006](3) Due to the integrated structure of the solid combustion zone, anaerobic carbonization zone and gas combustion zone, the solid combustion zone mostly contains cooling tar and oil components after combustion. If there is no secondary combustion and the waste in the retort area is fused together, the retort degasification time will be delayed, resulting in incomplete combustion of the retort

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