Technique and device for removing dust of coke oven by boiler system

Abstract

The invention relates to a technology and equipment which utilize a boiler system to eliminate fume and dust from a coking oven. A movable dust-collecting vehicle is arranged on the top of the coking oven to collect the fume and dust escaping during the process of coke collecting and coal feeding, and the fume and the dust undergo primary burning in a combustion chamber, the coke foam is separated and then led inside the boiler for sufficient combustion, which not only utilizes the heat energy but also achieves profound dust-elimination and desulfurization for the fume through the configuration facilities of the boiler so as to accomplish the aim of clean discharge. The technology provided by the invention is characterized in simple operation, investment reducing, no occupation of area, and good effect in smoke-removing and dust-elimination, which conforms to national 2nd standard of discharging. The invention can replace the ground dust extract station. In order to implement the fume collection described in the technology, the specific dust-collecting vehicle is designed. The invention is suitable for the factory with an established complete boiler system to carry out the operation of smoke-removing and dust-elimination.

Description

technical field [0001] The invention relates to a process and a device for eliminating smoke and dust in a coke oven by using a boiler system. technical background [0002] During the coal charging and coke discharge period of the coke oven, the smoke and dust pollution is relatively large. The main features are dispersion, large amount of smoke and dust, coexistence of continuity and paroxysm, high temperature, open flame, and difficult treatment. At present, the main environmental protection measures include furnace top smoke elimination and dust removal vehicles and ground dust removal stations: [0003] 1. Furnace top smoke elimination and dust removal vehicle: [0004] Furnace top smoke elimination and dust removal vehicle is characterized in that it combines flue gas combustion, washing, water removal, dust removal and induced draft fan, and the top-loading coke oven is combined with the coal charging machine into one car; The furnace is independently combined into ...

AI Technical Summary

Problems solved by technology

Long-term operation on the top of the furnace may easily cause deformation of the furnace body

Seriously affect the service life of the coke oven body

[0007] 2) The processing capacity is limited, and it is not possible to capture and dispose of all the waste gas and smoke, so that when coal is loaded or coke is pushed, the air is often accompanied by smoke particles, polluting the environment

[0008] 3) It can only be used for dust removal treatment, but cannot control the sulfur content

[0012] 1) Large area, about 800-1000m2

[0013] 2) Due to the loss of air volume, the ground station has a large load

The installed capacity is large and the operating cost is high. The operating cost per ton of coke is 2.5-4 yuan, which increases the production cost

[0014] 3) The above reasons lead to high project cost. Taking a coke oven with an annual output of 600,000 tons as an example, it needs to invest 13-18 million yuan

And the construction period is long, generally 6-8 months

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