Continuous deep dewatering equipment

Abstract

The invention relates to continuous deep dewatering equipment. The equipment is mainly applied to situations, needing solid-liquid separation, such as sewage treatment plants, paper mills, chemical plants and pharmaceutical factories and particularly applied to continuous deep dewatering for sludge. The equipment is mainly composed of a distribution area, a pre-pressing area, a squeezing area anda discharging area, the distribution area comprises a distributor and an evening roller, and the pre-pressing area is composed of an upper filter screen, a lower filter screen and a dewatering roller;the squeezing area is composed of an upper filter screen, a lower filter screen, an upper liner band, a lower liner band and a pressurization assembly which are operated circularly, the upper and lower filter screens and the upper and lower liner bands overlap in the squeezing area to form a squeezing face similar to a plane, and the pressurization assembly vertically acts on the liner bands andprovides squeezing pressure of 10-60 kilograms; the discharging area is composed of discharging rollers and scrapers, and a mud cake is continuously and automatically discharged under the function ofthe filter screens and the scrapers. After squeezing, the water content of the mud cake is lower than 50%, and the equipment is automatically and continuously operated.

Description

technical field [0001] The invention relates to a solid-liquid separation device, which is mainly used in sewage treatment plants, paper mills, chemical plants, pharmaceutical factories and other occasions that require separation of solid and liquid phases, and in particular relates to a continuous deep dehydration device for sludge. [0002] technical background [0003] A large amount of sludge will be generated during the operation of the sewage treatment plant. Traditional sludge dewatering equipment, such as ordinary belt machines, centrifuges and screw stackers used in large quantities, can only dehydrate the sludge to about 80%. High, bulky, and good fluidity, which brings difficulties to transportation and back-end disposal. The box-type diaphragm filter press can reduce the moisture content of sludge to less than 60%, but there are intermittent operations of equipment, complex auxiliary equipment, and equipment infrastructure requirements. High, labor-intensive and o...

AI Technical Summary

Problems solved by technology

[0003] A large amount of sludge will be generated during the operation of the sewage treatment plant. Traditional sludge dewatering equipment, such as ordinary belt machines, centrifuges and screw stackers used in large quantities, can only dehydrate the sludge to about 80%. High, bulky, and good fluidity, which brings difficulties to transportation and back-end disposal. The box-type diaphragm filter press can reduce the moisture content of sludge to less than 60%, but there are intermittent operations of equipment, complex auxiliary equipment, and equipment infrastructure requirements. High, high labor intensity and other issues

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