Reciprocating type exhaust gas pyrolysis furnace

Abstract

The invention discloses a reciprocating type exhaust gas pyrolysis furnace. The furnace comprises a furnace wall housing forming a hearth combustion chamber, the bottom of the hearth combustion chamber is inclinedly provided with a reciprocating type fire grate and a fire grate power mechanism for driving the reciprocating type fire grate, an inner side front end and an inner side rear end of the furnace wall housing are respectively provided with a front furnace arch and a rear furnace arch, the front furnace arch and the rear furnace arch are located above the reciprocating type fire grate, multiple C-shaped exhaust gas injection pipes are arranged between the front furnace arch and the rear furnace arch, the top of the furnace wall housing is provided with a high-temperature flue gas outlet, the bottom of the furnace wall housing is provided with a slag outlet, the rear furnace arch is prepared from arch bricks by bricklaying, and a fireproof concrete layer is casted on the surface of the rear furnace arch. The reciprocating type exhaust gas pyrolysis furnace has a low operation cost and can fully burn or decompose combustible gas such as fire coal and CO and poisonous and harmful substances in the hearth combustion chamber.

Description

technical field [0001] The invention relates to a waste gas pyrolysis furnace, in particular to a reciprocating waste gas pyrolysis furnace. Background technique [0002] At present, all incinerators on the market that incinerate municipal waste and industrial waste with calorific value use secondary combustion chambers for the treatment of toxic and harmful substances such as dioxins, all of which rely entirely on oil and gas burners to provide heat, and the operating costs are extremely high; in addition, The furnace combustion chamber of the existing secondary combustion chamber does not have a furnace arch layout structure, the residence time of the coal burning inside the furnace combustion chamber is short, and the high-temperature flue gas vortex intensity and flue gas flow rate inside the furnace combustion chamber are low. All of these will lead to combustible gases such as coal and CO and toxic and harmful substances not being fully burned or decomposed inside th...

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Problems solved by technology

[0002] At present, all incinerators on the market that incinerate municipal waste and industrial waste with calorific value use secondary combustion chambers for the treatment of toxic and harmful substances such as dioxins, all of which rely entirely on oil and gas burners to provide heat, and the operating costs are extremely high; in addition, The furnace combustion chamber of the existing secondary combustion chamber does not have a furnace arch layout structure, the residence time of the coal burning inside the furnace combustion chamber is short, and the high-temperature flue gas vortex intensity and flue gas flow rate inside the furnace combustion chamber are low. All of these will lead to insufficient combustion or decomposition of combustible gases such as coal and CO and toxic and harmful substances in the furnace combustion chamber, which will increase the consumption of coal and is not conducive to cost reduction.

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