Multifunctional external-adsorption gas smoke guide and recovery and combustion smoke elimination and dust removal vehicle

Abstract

The invention belongs to the technical field of coking of coking furnaces, relates to a multifunctional external-adsorption gas smoke guide and recovery and combustion smoke elimination and dust removal vehicle and aims to provide the multifunctional external-adsorption gas smoke guide and recovery and combustion smoke elimination and dust removal vehicle which inherits the functions of combustion smoke guide and high-pressure ammonia water injected N<-1> and N<+2> smoke guide and is capable of meeting the requirements for deep processing and recycling of energy and energy saving, low in cost and operation cost as well as good in economic and environment-friendly effects. The adopted technical scheme is as follows: a traveling device is arranged at the bottom of a frame body; both a movable adsorption guide pipe and a fixed adsorption guide pipe are arranged on the frame body; the movable adsorption guide pipe is inserted to the fixed adsorption guide pipe; the fixed adsorption guide pipe is communicated with a smoke inlet of a carbonization chamber; a gas inlet of a combustion smoke elimination and dust removal system is communicated with a second smoke outlet formed in the top of a coal storage and carbonization chamber; and a smoke outlet of the combustion smoke elimination and dust removal system is communicated with a dust removing and collecting pipeline arranged at the top of the furnace. The multifunctional external-adsorption gas smoke guide and recovery and combustion smoke elimination and dust removal vehicle can be widely applied to the field of cokes.

Description

technical field [0001] The invention belongs to the technical field of coking oven coking, and in particular relates to an external suction type multi-functional dual-purpose vehicle for recovery of coal gas guide and smoke, 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...

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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

[0036] 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 coal charging furnace door (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 between 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

[0037] ② When adopting the three-way valve high-pressure ammonia water guide smoke and dust removal method, the current purification and dust removal facilities and processes cannot meet the national harmless and environmentally friendly emission standards in terms of furnace smoke adsorption and dust removal purification treatment

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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