January 24, Anqing Petrochemical Thermoelectric Department of 3,6 furnace flue gas desulphurization device waste spin feed pump outlet pipe small technical transformation, the complete eradication of wastewater swirling sub-frequent blockers have been troubled by the steady operation of the desulfurization plant ' Old illnesses.
In the past year, No.3 and No.6 furnace flue gas desulfurization devices due to the smaller diameter of wastewater swirler, and gypsum slurry there is a certain degree of particulate impurities, resulting in frequent swirling wastewater particles blocked, and sometimes have to contact the maintenance staff several times a week Which not only increases the running cost of the device but also can not discharge effluent because of the clogging of the wastewater swirling liquid, and the high absorption liquid level can only be achieved by opening the absorption pit to the old pump communication valve, The pit slurry is discharged to the former pool of the old pump house and then to the dewatering bin through the slurry pump.As the gypsum slurry contains a large amount of fine particles of limestone, it can easily cause the dewatering bin (the previous operation is some boiler slag with larger particles) The water component of the center is blocked, the water can not be finished on time, the slag can not be discharged in time, which directly threatens the safe operation of the boiler.
To this end, the Department decontamination area engineering and technical personnel to actively find the cause of the problem, start their brains to solve the problem they participate in the waste water swirler to clear the clearance maintenance work and found that the cause of wastewater swirler plugging is due to gypsum slurry contains larger So they immediately implemented the technical transformation into the relevant pipeline entering the waste water system and installed a filter on the outlet pipe of the waste spin feed pump to the waste water system so that larger particle impurities could not enter the waste water system, Filter for cleaning.
At present, the waste water system put into operation after the transformation is in good condition, and no clogging occurs again.
