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After using the mud tank for a long time, there will be precipitation of solids and silts, even though we have a lot of solutions to less the precipitation, e.g. each tank should design several cleaning gate which is closed to the bottom, after several months, you can clean the tank bottom through the cleaning gate. Also we can design the tank bottom to round type, not level, it is easy to clean the tank. Most of the tank is designed with water line, which can be used to clean the tank top and tank bottom.
Even though there are a lot of ways to less the solids, you still need special equipments for the mud tank cleaning
. Firstly used a submersible slurry pump or centrifugal pump to transfer the slurry to the cleaning system, which is composed of shale shaker, desander, desilter, sometimes also with decanter centrifuge. The waste water can be re-used to clean the tank, the waste solids can be disposal or to the dewatering system for future process.