Internal-suction type multifunctional car capable of guiding smoke, recovering coal gas and eliminating smoke and dust via combustion

Abstract

The invention particularly relates to an internal-suction type multifunctional car capable of guiding smoke, recovering coal gas and eliminating smoke and dust via combustion, which belongs to the technical field of coking with a coke oven. The multifunctional car inherits the advantages of smoke guiding via combustion and smoke guiding via high-pressure ammonia water ejection N-1 and N+2 pipes, and has the advantages of capacity of deep-processing and recycling of energy, energy conservation, low manufacturing cost and operation cost and good economic benefits and environmental protection effects. According to a technical scheme in the invention, a running gear is arranged at the bottom of a frame body; a movable adsorption conduit and a fixed adsorption conduit are both arranged on the frame body; the movable adsorption conduit is inserted and mounted in the fixed adsorption conduit; a jet pump is communicated with the fixed adsorption conduit and a gas-collecting and water-storing tank; the coal gas outlet of the gas-collecting and water-storing tank is communicated with the smoke inlet of a carbonization chamber through a fixed smoke guide pipe; and the coal gas inlet of a combustion smoke-and-dust elimination system is communicated with a second smoke outlet located at the top of the coal loading carbonization chamber. The multifunctional car provided by invention can be widely used in the field of coke.

Description

technical field [0001] The invention belongs to the technical field of coking oven coking, and in particular relates to a multi-functional dual-purpose vehicle for internal suction gas guide smoke recovery, combustion smoke elimination and dust removal. Background technique [0002] In the coke oven production operation, especially in the side-loaded coke oven production, the coke oven emits the most smoke and dust, which is the most harmful to humans and pollutes the environment. During the coal charging process, when the coal cake contacts the hot carbonization chamber wall, the coal A large amount of yellow smoke (raw gas) and coal dust will be produced on the surface of the cake. According to relevant data reports, the amount of smoke and harmful substances emitted during the coal charging process accounts for 70% of the total pollution of coke ovens, of which benzene solubles are 0.499kg / t coal, and benzopyrene is 0.908×10 -3 kg / t coal. [0003] The most harmful carci...

AI Technical Summary

Problems solved by technology

[0032] ①When coal is loaded to guide smoke and remove dust, the coal cake has not started to advance, and the operator on the top of the furnace has opened the three-way high-pressure ammonia water valve in advance, so that a large amount of air is introduced into the gas collection pipe, resulting in high oxygen content in the gas system, exceeding the safety Standards are stipulated, which leads to the inability to produce subsequent deep processing of chemical products. For example, when coking plants have subsequent deep processing of chemical products: coal gas to methanol, coal gas to LNG, liquefied natural gas and other products, the requirements for the oxygen content in the gas are very strict. Once the oxygen content exceeds the standard, it is absolutely not allowed use

[0037] Although the above method can control the oxygen content in the gas system to exceed the standard, due to factors such as insufficient smoke guide suction, a large amount of flue gas (raw coal gas) generated by coal charging will overflow along the door of the coal charging furnace (commonly known as burner smoke), causing serious pollution , so that the three-way valve high-pressure ammonia water guide smoke and dust removal method is still in the embarrassment of the two contradictions between the dust removal effect and the gas recovery in the application of coking enterprises. The biggest is the two disadvantages of using the three-way valve-type high-pressure ammonia water to guide the smoke and dust removal method

[0038] ② When using the three-way valve high-pressure ammonia water guide smoke and dust removal method, in terms of furnace smoke adsorption and dust removal purification treatment, the current purification and dust removal facilities and processes cannot meet the national harmless and environmentally friendly emission standards

Therefore, in the past, the method of simply collecting the overflowing raw gas (stove smoke) and discharging it through bag filtration no longer meets the standards of the times.

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