Multi-roll continuous press dehydrator

Abstract

The invention discloses a multi-roll continuous press dehydrator which comprises a stander, a power device and a transmission device, wherein the transmission device is provided with an input shaft and more than two rows of output shafts which are arranged up and down; the input shaft is connected with the power device; the stander is provided with more than two rows of pressing rolls (11) corresponding to the output shafts; the pressing rolls (11) are connected with the output shafts; and the upper and the lower rows of pressing rolls which are adjacent to each other are in rolling in a roll-to-roll rotating relay way. The multi-roll continuous press dehydrator can be used for reasonably rolling for a plurality of times by a limited number of pressing rolls. As the contact area between the two rolls is small, the multi-roll continuous press dehydrator has the advantages of high pressing force and short pressing time, leads the discharge moisture content to be lower, improves the mud cake content and the solid content, lowers the tension requirement for filter cloth, prolongs the service life of the filter cloth, reduces the volume of a machine, and ensures the structure to be more compact.

Description

technical field [0001] The invention relates to a solid-liquid separation press dewatering device, in particular to a multi-roller continuous counter-press dewatering machine for sludge dewatering. 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. At present, belt filter presses are widely used for sludge dewatering. These filter presses basically rely on the tension of the filter cloth to exert pressure on the materials for dehydration. High moisture content, low pressure, long pressing time, low productivity, and unsatisfactory pressing effect. In addition, this dehydration method utilizes the tension of the filter cloth to carry out pressure...

AI Technical Summary

Problems solved by technology

At present, belt filter presses are widely used for sludge dewatering. These filter presses basically rely on the tension of the filter cloth to exert pressure on the materials for dehydration. The problem of high moisture content, and the defects of low pressure, long pressing time, low productivity, and unsatisfactory pressing effect

In addition, this dehydration method uses the tension of the filter cloth to perform press filtration, so the tension requirement for the filter cloth is very high, and the service life of the filter cloth is short

Chinese patent CN201406369Y discloses a continuous double-roller counter-pressure dehydrator. It is equipped with upper and lower rows of rollers to dehydrate the material. In order to improve the dehydration effect, the number of roller pairs must be increased. The length of the dehydrator must be extended, which is bulky and difficult to transport

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