OPERATION CONTROLLING METHD FOR SLUDGE DEHYDRATOR

摘要

PURPOSE:To efficiently control the number of running dehydrators while keeping the water content of sludge to a minimum, by previously estimating the quantity of the sludge to be treated with the dehydrators, and by controlling the number of running dehydrators and the dehydrating time. CONSTITUTION:Present invertion is a controlling method for a running of sludge treating equipment provided with plural sludge dehydrators to obtain dehydrated sludge from water-contained sludge by the filtration method. A quantity of the sludge to be treated is previously obtained by an estimation-computing in a block 10 in order to compute a necessary treating sludge-quantity per one dehydrator based on said computed value in a block 12. In a block 13, a treating time necessary for treating said quantity of sludge to be treated is computed. Hereby, the dehydrating time and the lowest value of the filtrating time is compared, and when a compared result exceed the lowest value, the maximum range of the dehydrating time is checked in a block 15. And then; if said result is in the range of said checked range, a command of dehydrating time to control the number of revolutions of a dehydrator rotating-drum is outputted from a block 16; and if the dehydrating is below the lowest value, a combination of the controlling of the number of running dehydrators is decided and commanded to a exchange device.