Process for curing and dehydrating scum bottom sludge
A bottom sludge and scum technology, applied in the direction of dehydration/drying/thickened sludge treatment, etc., can solve the problems of inability to achieve rapid dehydration of scum and bottom sludge, small processing capacity, large investment, etc., and achieve easy stacking, treatment, and dehydration The effect of high speed and low investment
Inactive Publication Date: 2012-03-28
BC P INC CHINA NAT PETROLEUM CORP +1
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Abstract
The invention relates to the technical field of treatment of oil sludge in oil fields, in particular to a process for curing and dehydrating scum bottom sludge. The process comprises the following steps of: metering the scum bottom sludge by a metering pump and pumping the scum bottom sludge to an initial mixing stirrer, wherein a curing agent is adjusted and boosted into the initial mixing stirrer by a spiral metering booster according to a proportion, and stirring at a speed of 50 r/m for 5 to 30 minutes; discharging the mixture into a secondary mixing stirrer and stirring at a speed of 150r/m for 10 to 15 minutes; converting the modified and cured scum bottom sludge from a colloid structure into a crystalline structure, and conveying to an air-drying place by a slurry pump, and conserving for 1 to 3 days until the water moisture content of the modified scum bottom sludge is reduced to be less than 40 percent and the heat value is more than 3,000 Kcal/kg; and finishing the process.By the process, quick dehydration for the scum bottom sludge and quantity reduction are realized; and the oily components of the cured scum bottom sludge are distributed uniformly, so recycling of the scum bottom sludge can be realized.
Application Domain
Sludge treatment by de-watering/drying/thickening
Technology Topic
Slurry pumpAir drying +7
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