Small heat accumulating type household garbage pyrolysis gasification furnace

Abstract

The invention discloses a small heat accumulating type household garbage pyrolysis gasification furnace which comprises a cylindrical shell and is characterized in that a pyrolysis gasification chamber and a catalytic modification chamber are arranged in the cylindrical shell in a bilateral symmetry mode, and a first filler layer and a second filler layer are arranged in the middle of the pyrolysis gasification chamber and the middle of the catalytic modification chamber respectively; catalyst particles placed on the first packing layer and the second packing layer are supported by a stainless steel pore plate; the upper parts of the pyrolysis gasification chamber and the catalytic modification chamber are communicated through a horizontal flue; a slag falling pipe, an air inlet and a plurality of air caps are arranged at the bottom of the pyrolysis gasification chamber, and the slag falling pipe is connected with a slag discharging valve for quantitative slag discharging; a cracked gas outlet is formed below the second filler layer; a conical ash hopper is arranged at the bottom of the catalytic modification chamber; the pretreated household garbage is fed into the pyrolysis gasification chamber through the spiral feeder and enters the upper portion of the first filler layer under the action of gravity; the method can be widely applied to the fields of environmental protection, garbage treatment and the like.

Description

technical field [0001] The invention relates to a pyrolysis gasification furnace, in particular to a small heat storage type domestic garbage pyrolysis gasification furnace. Background technique [0002] At present, the management of domestic waste in rural areas of our country is facing severe challenges. It is difficult to dispose of waste, and the treatment methods are lagging behind. There is also a lack of technology and equipment that can effectively dispose of waste with relatively low investment and operating costs. [0003] At present, the small domestic waste pyrolysis gasifier is mainly composed of a rotary grate type pyrolysis gasifier (first combustion chamber) and a pyrolysis gas combustion chamber (second combustion chamber). According to the position of the gas outlet of the first combustion chamber, it can be divided into updraft type and downdraft type. The tar content in the gas of the updraft type is relatively high, while the gas of the downdraft type pa...

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Problems solved by technology

However, this system requires a combustion furnace to match the pyrolysis furnace, and also requires the circulation of the heat carrier and product separation. The system is more complicated, the cost is high, and the operating cost is high.

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