Continuous twin-roll counter-pressure dewaterer

Abstract

The invention discloses a continuous twin-roll counter-pressure dewaterer which mainly comprises a frame (1), a power device (2), a transmission device (3), an upper roll component (4) and a lower roll component (5), wherein, the transmission device (3) is provided with an input shaft (12) and a plurality of output shafts (13); the input shaft (12) is connected with the power device (2) via a shaft joint I (14); an upper-row output shaft (13) is connected with the upper roll component (4) via a universal joint (15); a lower-row output shaft (13) is connected with the lower roll component (5) via a shaft joint II (16); and the upper roll component (4) and the lower roll component (5) are in roll-to-roll rotary relay type rolling fit. By dewatering under the action of pressure between rolls with small contact area, the invention has the advantages of large squeezing force and short squeezing time, ensures the solid content rate of mud cakes and solves the technical problems of twin-roll counter-pressure dewatering and draining.

Description

technical field [0001] The invention relates to a sludge dewatering device in the waste water and sewage treatment process, and a press dewatering device for solid-liquid separation, in particular to a continuous double-roller counter-pressure dewatering machine. Background technique [0002] The sludge produced by the water treatment system has a high moisture content and a large volume, which is inconvenient for transportation, treatment or disposal. Sludge concentration can reduce the volume of the sludge. After concentration, the sludge has a moisture content of 94%. Above, it is fluid and bulky, so sludge dehydration is also required. Belt filter press is a dehydration equipment that operates continuously. At present, belt filter presses are mostly S-type or W-type. The S-type and W-type pressing methods use the tension of the filter cloth to exert pressure on the sludge. The type rollers are not pressed against each other, so the extrusion force is extremely small, so...

AI Technical Summary

Problems solved by technology

[0003] The present invention provides a continuous double-roller counter-pressure dehydrator, which adopts a roller-to-roller rotary relay type rolling, which has a large pressing force and a short pressing time. At the same time, it reduces the tension requirement of the filter cloth, ensures the life of the filter cloth and the solid content of the mud cake, and successfully solves the technical problem that the double-roller dewatering cannot be drained

Images