Design scheme of ultra-low emission wet electrostatic precipitator for coke oven flue gas treatment

焦炉除尘器：

60000

焦化厂除尘器：

80000

布袋除尘器：

100000

Analysis of the working principle of the coke oven dust collector. What is a coke oven dust collector? The coke oven dust collector is a dust collector that absorbs paroxysmal black smoke, yellow smoke and other pollutants generated during the coal loading process in multiple discharge chambers. First, it enters the coke oven top combustion smoke guide car. The flue gas is fully burned in the combustion chamber. The combustion temperature reaches ℃ ~ ℃, and more than % of benzopyrene, benzene soluble matter, hydrogen sulfide, hydrogen cyanide, and carbon monoxide in the flue gas are removed. Wait for the harmful substances to be burned. After combustion, the flue gas, carbon deposits, smoke dust, etc. are cooled to below ℃ after being mixed with an appropriate amount of air, and then enter the coal-loading flue gas adsorption and purification device through the fixed flap valve dust collection trunk pipe installed on the top of the coke side furnace. After preliminary purification by the adsorption purification device, the flue gas is extinguished and cooled by a fire-extinguishing cooler to remove large particles or ignited coal powder. The temperature drops below ℃, and then enters the fire-retardant low-pressure pulse bag dust collector. After dust removal, the flue gas emission concentration &/. Since the flue gas contains water vapor and tar, the dust removal efficiency of the filter bag will be reduced. Therefore, before each time the bag dust collector filters the coal flue gas, the filter bag should be pre-sprayed. The spraying medium is the coke powder collected by the coke dust removal. . The gas purified by the dust collector is discharged into the atmosphere through the dust removal fan, muffler, and chimney. The dust collected by the bag dust collector and cooler is transported to the dust bin through the dust unloading valve and the scraper dust conveyor. The dust in the dust bin is regularly humidified by the humidifier and then unloaded into the vehicle for transportation. The dust and coke side dust removal are combined into one system, which can greatly save renovation investment. During the process of loading coal and pushing coke, the coke oven will emit a large amount of smoke, mainly smoke or coke dust, and contain nitrogen oxides, sulfides and other smoke. In order to prevent environmental pollution during the coke oven loading and coking process, the smoke and dust need to be treated by the dust removal ground station before being discharged into the atmosphere.
The length, width, and height of the coke oven carbonization chamber are &(average)&, the coal loading capacity of a single furnace, and the coke output of a single furnace are about Build a set of ground dust removal station for the coke oven. In view of the fact that the number of holes in the coke oven carbonization chamber of this project is only one, and it is not considered to build a second coke oven, and the coke extraction operation will take a long time during production, so this plan is designed as a coal loading, coke extraction & two-in-one & dust removal system. . The boundary of the ground dust removal station starts from the coal loading dust removal main pipe and the coke discharge dust collection main pipe to the ground dust removal station.