Coal pyrolysis furnace

Abstract

The invention relates to a coal pyrolysis furnace which comprises a coal inlet device (1) of the coal pyrolysis furnace, a coal preheating device (2) of the coal pyrolysis furnace, a preheated coal feeding device (3) of the coal pyrolysis furnace, a coal heating device (4) of the coal pyrolysis furnace, a coke modification device (5) of the coal pyrolysis furnace, a coke dry quenching device (6) of the coal pyrolysis furnace and a coke push and discharge device (7) of the coal pyrolysis furnace. A thermal circulation continuous coking process can utilize waste heat to dry and preheat coal fed into the furnace, thereby lowering energy consumption and reducing the generation of smoke dust; the oil gas yield is increased, no circulating water is used, no fresh water is consumed, no waste water or waste residue is generated, and the up-to-standard discharge of tail gas can be achieved through a bag-type dust remover; and the coal is conditioned, thereby widening coal types and coal sources, improving the coke quality and increasing the oil gas field. By utilizing a thermal circulation continuous coke furnace, the raw coal cost is lowered by 200 Yuan; the benefit of chemical products, methane gas, hydrogen gas and combustion gas can be increased by 700 Yuan; the profit for the production of one ton of coke can be up to 900 Yuan; and the profit and tax of a coking scale with an annual production of million tons can be up to 90 million Yuan.

Description

technical field [0001] The invention belongs to a coking oven, in particular to a coal pyrolysis furnace. Background technique [0002] At present, there are many problems in the coke industry, such as severe overcapacity, low industrial concentration, unreasonable industrial layout, low level of comprehensive utilization of resources, and environmental pollution. Now coking coal resources are in short supply, coal prices are rising, and coking enterprises are suffering large losses; the traditional coking process has low resource utilization and intermittent coal charging, which cannot eliminate serious environmental pollution. The task of energy saving and emission reduction is arduous; the traditional product recycling process requires a lot of investment and little income, and it is difficult to adapt to the current situation of fierce market changes; the pressure of the international market is increasing; high volatile coal is directly burned for power generation, which...

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Problems solved by technology

[0002] At present, there are many problems in the coke industry, such as severe overcapacity, low industrial concentration, unreasonable industrial layout, low level of comprehensive utilization of resources, and environmental pollution.

Now coking coal resources are in short supply, coal prices are rising, and coking enterprises are suffering large losses; traditional coking processes have low resource utilization and intermittent coal loading, which cannot eliminate serious environmental pollution. The task of energy saving and emission reduction is arduous; the traditional product recycling process requires a lot of investment and little income, making it difficult to adapt to the current situation of fierce market changes; the pressure on the international market is increasing; high-volatile coal is directly burned for power generation, which is a pity that many precious coals are lost. Resources; traditional coking consumes a lot of energy and has a lot of smoke; CDQ towers occupy a large area, water pollution and waste of coke caused by water quenching and energy loss are large, and exhaust emissions are not up to standard

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