| 摘要 |
PURPOSE:To reduce the cost of equipment by detecting the moisture and flow rate of high moisture-content mud by a moisture meter and a flow element, controlling the loading of a solidifying agent by an automatic control means and automatically solidifying and treating mud. CONSTITUTION:The moisture W and flow rate M of high moisture-content mud 10 before an intake 31 fed to a screw mixer 3 are detected by a moisture meter 6 and a flow element 5, and a flow-rate signal (m) is input to a flow computing element C1 and a reference loading signal h' is output from a ratio relay C2. A solidifying-agent loading correction output h'' is output from a converter 61 and a flow rate compensator C3, and both signals h', h'' are input to a flow controller C4 and a solidifying-agent loading signal (h) is arithmetically operated and determined. The output signal (h) is converted into the operation source output of an operating section 210 by a converter C5 and a converter 24, and automatically controlled by a solidifying-agent feeder 21 including the operating section 210, and the mixer intake 31 is supplied with the loading H of a solidifying agent 20. Mud is kneaded and solidified in the mixer 3 by driving the mixer 3, and discharged from a mixer 32, and solidified mud 11 is transferred by a discharge conveyor 7. |
