Small domestic garbage pyrolysis gasifying furnace and purifying system

Abstract

The invention discloses a small domestic garbage pyrolysis gasifying furnace and a purifying system. The gasifying furnace comprises a furnace body, the top of the furnace body is provided with a smoke outlet, the upper portion of the furnace body is provided with a feed inlet, a first fire grate set is arranged inside the furnace body and located below the feed inlet, the first fire grate set divides the interior of the furnace body into a pyrolysis chamber on the upper side and a combustion chamber on the lower side, the bottom of the combustion chamber is provided with a second fire grate set, an annular air flue is arranged in the furnace body and located in the middle of the combustion chamber, the annular air flue is provided with multiple nozzles facing the combustion chamber, an air inlet of the annular air flue is connected with one end of a three-way pipe installed on the smoke outlet through an induced draft fan, and the purifying system comprises the gasifying furnace, an adsorption module, a deodorization module, a sludge pool, a flocculation sedimentation basin, a clean water basin and a deacidification module. The content of dust, tar, dioxin and other hazardous gas in flue gas is effectively reduced, and the requirements for the tail gas purifying technology are effectively lowered.

Description

technical field [0001] The invention relates to a small domestic waste pyrolysis gasification furnace and a purification system, in particular to a small domestic waste pyrolysis gasification furnace and its tail gas treatment method. technical background [0002] The traditional small and medium-sized garbage incinerators are "smoldering" combustion by manually putting garbage into the furnace. The composition of the flue gas from direct incineration is very complex, and the tar content of the flue gas produced after combustion is high, and the back-end tail gas treatment brings a very heavy burden. In addition, traditional waste incineration methods can easily lead to insufficient waste combustion, which will lead to the production of a large amount of toxic and harmful gases, especially dioxins, which will seriously affect the quality of the surrounding environment. [0003] The pyrolysis gasification device is characterized by pyrolysis and gasification of organic matte...

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Problems solved by technology

[0006] The present invention solves the deficiencies of the existing technical problems and provides a small domestic waste pyrolysis gasification furnace and purification system, aiming at the frequent maintenance of the moving parts of the small waste pyrolysis gasification device due to high temperature working conditions and solving the temperature control method of the pyrolysis chamber To solve the problem, through the garbage self-sealing, without any moving mechanism, the characteristics and self-weight of the garbage are used to separate the three stages of garbage pyrolysis, carbonization, and incineration in the furnace to ensure the stability of the pyrolysis temperature of the organic matter in the pyrolysis chamber, and Make full use of pyrolysis combustible gas to provide garbage combustion section to ensure full combustion of garbage

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