Pressing dehydrator

Abstract

The invention discloses a spiral pressing dehydrator. The spiral pressing dehydrator comprises a rack, a feeding port, a discharging port, a driving device, a spiral shaft, a housing and spiral blades, wherein the driving device is fixed to the rack and connected with the housing; the spiral shaft is mounted in the housing and driven by the driving device to rotate; the spiral blades are arranged around the spiral shaft; the discharging port is formed in the lower part of the end, connected with the driving device, of the housing, and the feeding port is formed in the upper part of the other end of the housing; the housing is gradually constricted from the end with the feeding port to the end with the discharging port, and the end, with the feeding port, of the housing is higher than the end, with the discharging port, of the housing; the spiral distance between the spiral blades is gradually reduced from the end with the feeding port to the end with the discharging port. The spiral pressing dehydrator has the advantages that the housing structure and mounting are changed to achieve the effect of continuous dehydrating; the discharging port of the housing is lower than the feeding port of the housing, thus an object can move from the feeding port to the discharging port by virtue of the self gravity, and complex operation control in the whole moving process can be omitted. The spiral pressing dehydrator runs at a low speed, so that small power is needed for operating, and costs can be correspondingly reduced, and as a result, the characteristics of zero sludge residue, low emission and recycling can be achieved.

Description

technical field [0001] The invention relates to a pressing and dehydrating device, in particular to a screw pressing and dehydrating machine. Background technique [0002] The screw press dehydrator is a kind of solid-liquid separation equipment, which is composed of a filter cartridge jacket and a helical column. When the helical column rotates, it completes the filtration and dehydration of the flocculated sludge. It has the characteristics of low speed and low power consumption. The screw driving device is a single driving machine. When dehydrating, the screw shaft is rotated forward. When cleaning, the filter cartridge and the screw shaft are reversed. The combination of screw rotation and screw blades is used to achieve solid-liquid separation, and the sludge is sent to the dehydration process. The concentrated part of the machine is concentrated by the feed pressure in the concentrated part, and then transported to the filtering and pressing part by the spiral blade. ...

AI Technical Summary

Problems solved by technology

At present, most of the existing screw press dehydrators need manual intermediate operation, which cannot achieve the purpose of convenient operation, and the actual dehydration of the screw blades may also lead to incomplete dehydration.

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