Stacked spiral sludge dewatering machine and dewatering method thereof

Abstract

The invention provides a stacked spiral sludge dewatering machine. The stacked spiral type sludge dewatering machine comprises a supporting frame, a flocculation box body, an electric control cabinet, a buffer connecting box, a stacked spiral body assembly, a dosing buffer box assembly, an anti-blocking sludge discharging hopper assembly, a communicating conveying pipe, a treatment box body, a supporting base, a liquid discharging connecting pipe, a speed reducer, a main shaft motor, a spraying pipe and a stirring motor. According to the stacked spiral sludge dewatering machine, the screw extrusion principle is applied, and the effect of extruding and dewatering sludge is achieved through a supporting screw, strong extrusion force generated by screw pitch change and a tiny gap between a fixed ring and a floating ring; by means of an electric telescopic rod, a transverse sliding rod, a walking wheel needle, a connecting sleeve and a ball bearing, the walking wheel needle is used for crushing large mud blocks, and the blocking phenomenon is avoided; and the arrangement of a buffer box body, a sealing cover, a dosing pipe, a medicine adding pipe and a throttling valve is beneficial to buffering treatment medicine liquid, the effect of manual adjustment at any time or temporary improvement of the medicine liquid is achieved, and the flocculation treatment effect is improved.

Description

technical field [0001] The invention belongs to the technical field of sludge dewatering equipment, and in particular relates to a screw stacking sludge dewatering machine and a dewatering method thereof. Background technique [0002] A sludge treatment method that removes water from fluidized primary, concentrated or digested sludge and converts it into semi-solid or solid sludge. After dehydration, the moisture content of the sludge can be reduced to 55% to 80%, depending on the nature of the sludge and sediment and the efficiency of the dewatering equipment. The further dehydration of sludge is called sludge drying, and the moisture content of dried sludge is less than 10%. Dehydration methods mainly include natural drying method, mechanical dehydration method and granulation method. Natural drying method and mechanical dehydration method are suitable for sewage sludge. The granulation method is suitable for coagulation and sedimentation of sludge. [0003] The sludge...

AI Technical Summary

Problems solved by technology

[0006] In order to solve the above technical problems, the present invention provides a screw-stacking sludge dewatering machine and its dehydration method to solve the problem that the existing screw-stacking sludge dewatering equipment is easy to block the mud hopper and lacks the dredging function when the sludge is discharged. Solve the problems of inconvenient addition of liquid medicine and complex dehydration process

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