Cost analysis:

When using a centrifuge, the power consumption is three to four kilowatts higher than that of a belt conveyor, and if you work eight hours a day, it will cost 30 yuan more every day. Centrifuges do not need to be washed in the whole dehydration process. Rinse the inner cavity with a small amount of water when stopping the machine. Belt filter press is different. One meter belt filter press needs 60 to 70 cubic meters of water every day to backwash the filter belt. The backwashing water should be re-treated in the sedimentation tank, and the cost will increase at least 150 yuan per cubic meter of water 2.5 yuan. If the cost of backwashing with tap water is high, the daily cost can be saved 120 yuan, at least 40,000 yuan per year. After the sludge is treated by the plate-and-frame filter press, it is necessary to clean the filter cloth, otherwise it will affect the treatment effect and increase the treatment time, which is time-consuming and laborious.

Horizontal spiral centrifuges have low labor intensity, high degree of automation and simple operation, and one person can manage 2 ~ 3 centrifuges at the same time; The operation of belt filter press is complicated, and the technical requirements for operators are high. General 1 ~ 2 personnel management 1 ~ 2 units. Plate-and-frame filter press is simple to operate, but it has high labor intensity and poor working environment. Generally, two people manage 1 ~ 2 sets, which requires high treatment for operators. If calculated by 80 yuan/person/day, the horizontal screw centrifuge 80 yuan/Tiantai, belt filter press 160 yuan/Tiantai, frame filter press 100 ~ 160 yuan/Tiantai.