An automatic processing equipment for coal-contained wastewater in a power plant

摘要

An automatic processing apparatus for wastewater containing coal in a power plant, comprises a charging cavity 11 loaded with flocculant. A valve mechanism 100 is arranged on a lower side of the charging cavity. The valve mechanism is arranged in an intermediate cavity 37 which is driven to open at regular intervals so that flocculant in the charging cavity can enter a dispensing mechanism 200. The dispensing mechanism comprises a left dispensing cavity 18 and a right dispensing cavity 33, both of which communicate with the intermediate cavity. A sampling mechanism 300 is arranged at a lower side of the right dispensing cavity, wherein the sampling mechanism comprises a mixing box 31, a water quality detection device (56, Fig. 6) arranged in a wall of the mixing box, and a stirring impeller (55, Fig. 6). The mixing cavity communicates with a waste reservoir 22 through a water pipe 29. A wastewater sample from the waste reservoir is mixed with flocculant in the mixing box, and after precipitation a measurement is performed using the water quality detection device. The addition of flocculant to the waste reservoir from a storage cavity 21 is dependent on the result of the measurement.