Novel high-efficiency dedusting and desulphurization integrated system process for coke-tamping, coaling and coke-discharging ground station

Abstract

The invention relates to a novel high-efficiency dedusting and desulphurization integrated system process for a coke-tamping, coaling and coke-discharging ground station, comprising the following steps: smoke gas enters a heat accumulating type cooler to be cooled to below 120 DEG C during coal feeding or coke discharging; the cooled smoke gas enters a multifunctional separator and separated tar and a part of large-particle sparkle dust enter a tar settling tank; the smoke gas processed by the multifunctional separator enters a fire resistance bag type dust remover to be filtered; and clean gas is discharged into the atmosphere after filtration. The novel high-efficiency dedusting and desulphurization integrated system process for the coke-tamping, coaling and coke-discharging ground station thoroughly solves the core problems of flammability, explosion proof, hard elimination of toxic gas and high-sulphur coal desulfurization of hard fire cloth bags, tar paste cloth bags and bag-typedust removers, which plague coking enterprises and dust removal enterprises for many years. Proved by practical tests, the dust removal efficiency is more than 99.7 percent, the discharged dust concentration is less than 40mg / m<3>, dust recycled by the ground station is 1400t / a, and smoke and dust are not generated in the production process of a coke oven, thereby completely meeting environmentalrequirements.

Description

technical field [0001] The invention relates to the technical field of environmental protection and dust removal for smoke and dust control in the coking process of a coking plant, in particular to a novel high-efficiency dust removal and desulfurization integrated system process for a ground station for stamping coke, coal charging, and coke discharge. Background technique [0002] At the beginning of the 21st century, our country built a number of tamping coke ovens with a height of 4.3 meters or more. Restricted by various factors at that time, most of the coke ovens used mobile smoke and dust removal vehicles. When only using high-pressure ammonia water to remove dust, the disorderly discharge during coke discharge has made great progress. Due to the increasing number of large coke ovens, government departments have raised the threshold for coking production, stepped up environmental law enforcement, and formulated strict emission standards. Bag dust removal, but due to...

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Problems solved by technology

[0005] The dust removal process of the old-style coal charging and coking ground station is as follows: figure 2 As shown, from the perspective of the process flow chart: the old ground station cannot effectively solve the problems of high temperature, tar-filled cloth bags, etc., and from the perspective of dust and smoke removal effects, first of all, it cannot meet the environmental protection emission requirements. Seriously, the operating life of the bag is too short

[0006] The old smoke and dust removal ground station of tamping coking furnace has the following problems: First, according to the working conditions in the coke oven production process, the analysis is as follows: ①. Both coke discharge and coal addition have high temperature operation problems, and the flue gas temperature at the furnace mouth reaches 800 -1100 degrees, or even higher, how to reduce the temperature of the flue gas, and what equipment to use to cool down must be considered

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