Coking plant ground station dust collector

The dust collector of the ground station of the coking plant adopts the domestic non-combustion method of coal loading,and the collected coal loading dust enters the coal loading dust removal technology of the dry dust removal ground station on the coke side.It realizes the capture of coal loading dust,the transfer of flue gas between the furnace top and the ground station,the regulation and control of flue gas temperature,and the integration of flue gas purification.It uses the coke powder collected on the surface of the filter bag during the coke pushing process to prevent the dust containing tar and water vapor from adhering to the filter bag during the coal loading process,and ensures the long-term stable operation of the equipment.

The dust collector of the ground station of the coking plant consists of two major parts.The furnace top part is a dust-collecting coal-loading car with a dust collection device.The smoke suction system consists of a movable smoke hood,a smoke guide pipe,a smoke regulating valve,an air regulating valve,a telescopic connector,etc.The interface flap valve on the dust collecting main pipe is opened through the telescopic connector.The smoke emitted during coal loading is mixed with a certain amount of air and sent to the dust collecting ground station integrated with the coke side dust removal through the dust collecting main pipe for purification.The other part is a dust purification ground station that combines coke pushing and coal loading.The ground station is equipped with fans,offline pulse bag dust collectors,smoke exhaust units with hydraulic couplings,dust collectors to recover coke powder and ash conveying devices,as well as corresponding electrical and instrumentation equipment,as well as compressed air and cooling water systems.

The dust collector at the ground station of the coking plant adopts a low-pressure dust cleaning method.The filter bag blowing program and control time are controlled by the electrical PLC system.The recovered dust can be sold or pulled to the material yard for processing.The dust removal system is designed to handle an air volume of 60,000 m3/h.Under the conditions of dust removal effect and stable operation of the dust removal system,the optimal air volume is adjusted and determined according to the resistance of the dust removal system and the operation of the coke oven.

Advantages of ground station dust collector in coking plant:

1.Coal loading dust removal adopts non-combustion method to add a large amount of air,so that the content of combustible components in the smoke is far below the lower explosion limit,and the smoke entering the dust removal system is stable;

2.The coke side dust removal system collects dry coke powder and gas energy to absorb the components,tar and moisture in the coal loading smoke,and does not need to consider the insulation,heating,anti-condensation and other measures of the dust removal equipment;

3.The use of low-pressure pipe spray pulse dust collector improves the dust removal ability of the dust collector,prevents dust from sticking to the filter material,and increases the system resistance;

4.The design of this system gives full play to the purification and processing capacity of the ground dust removal equipment.Through the design and control of the fan and pipeline system,the coal loading dust removal and the coke side dust removal are combined into one system,which can save the transformation investment.