Sludge distribution filter pressing device

Abstract

The invention discloses a sludge distributing and filter pressing device which comprises a sludge distribution machine and a filter press which are matched to work, wherein the sludge distribution machine comprises a sludge distribution main pipe, a plurality of sludge distribution branch pipes and a movable supporting mechanism; the filter press is arranged beside a distribution outlet of the sludge distribution machine and comprises a filter pressing assembly, a lifting mechanism and a press machine. The effects of high solid-liquid separation sludge discharge speed, high dehydration rate, low requirement on filter cloth and small occupied area of the filter pressing sludge distribution device are achieved.

Description

technical field [0001] The invention belongs to the technical field of solid-liquid separation, and in particular relates to a mud distribution press filter device. Background technique [0002] The process of separating solids from liquids is solid-liquid separation. There are many methods, such as sedimentation, filtration, membrane filtration, pressure filtration, vacuum, centrifuge and so on. Common solid-liquid separation equipment in the prior art includes screw stackers, cloth belt filter presses, spiral solid-liquid separators, and plate-and-frame filter presses. [0003] Disadvantages of snail stacking sludge dewatering machine: 1. The maximum processing capacity of the designed model is about 400-800kg / h of absolute dry sludge, and enterprises with a scale of 300,000 tons or more in large sewage treatment plants may need more; 2. Stacking snails The machine cannot handle sludge containing hard particles such as sand and stones, otherwise the dynamic and static rin...

AI Technical Summary

Problems solved by technology

[0003] Disadvantages of screw stacking sludge dewatering machine: 1. The maximum processing capacity of the designed model is about 400-800kg / h of sludge dry capacity, and enterprises with a scale of 300,000 tons or more in large sewage treatment plants may need more; 2. Screw stacking The machine cannot handle sludge containing hard particles such as sand and stones, otherwise the dynamic and static rings and screw shafts will be worn; 3. The treated sludge must be added with flocculants, and must be able to form good flocs before it can be processed, otherwise It is prone to the phenomenon of mud running in the dynamic and static ring; 4. The equipment realizes continuous operation, and the moisture content of the sludge is generally about 80%.

Disadvantages: high moisture content of sludge, high energy consumption, difficult maintenance

The disadvantage is that the processing capacity is small, and it is troublesome to replace the filter cloth

[0007] Due to different structural forms, the process principles of each filter press equipment are not the same, but from the perspective of dehydration effect and degree of automation, there is no equipment that can operate fully automatically and ensure that the dehydration rate is below 38%.

At the same time, the automation degree of the existing filter press system is relatively low, the labor cost is high, the floor area is large, the mud cake output speed is low, and the requirements for filter cloth are high.

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