Vehicular type fibre vertical board filter for sewage water deepness filtering process

Abstract

The invention belongs to the sewage treatment device, in particular to a traveling fiber vertical plate filter for deep filtering treatment of the sewage. The filter includes a sewage pool, a clean water pool, a hollow water outlet pipe, a fiber vertical filter plate, a traveling walking mechanism, a filter cloth anti-suction device and a mud pumping pipe, a water inlet which is communicated withthe fiber vertical filter plate thereon is arranged on the hollow water outlet pipe, the middle part of the fiber vertical filter plate is provided with two filter cloth pressing plates which are taken as walking tracks of a sucker in the filter cloth anti-suction device, the filter cloth anti-suction device is fixed below a beam of the traveling walking mechanism, the sucker thereof is fixed on the side surface of each fiber vertical filter plate, a suction port is arranged on the sucker, the suction port is connected with an anti-suction water pump by a communicating pipeline, the bottom end of the mud pumping pipe is near to the bottom part of the sewage pool, and the outlet end of the anti-suction water pump is connected into a sewage drainage groove out of the pool body by the connection of the communicating pipeline and the anti-suction water pump. The filter has great filtration treatment capacity of single filter, long service life of the filter cloth, small area coverage, lowcost and low treatment cost of ton level water.

Description

Technical field: [0001] The invention relates to a traveling-type fiber vertical plate filter used for deep filtration treatment of sewage, which is suitable for the upgrading and transformation of effluent water after biochemical treatment in urban sewage treatment plants and the filtration of suspended solids after adding chemicals and dephosphorization in a reclaimed water treatment process. It belongs to the field of sewage treatment technology. Background technique: [0002] At present, most of the filter materials of various filter equipment used in the prior art are arranged horizontally. The disadvantage is that the suspended matter in the water will soon be deposited on the surface of the filter material and block the water flow channel, so it is suspended in the incoming water. The impact resistance of the material load is small; the backwash energy consumption is large; the service life of the filter material is short. Especially the effluent of the sewage treatment p...

AI Technical Summary

Problems solved by technology

[0002] At present, most of the filter materials used in the prior art are arranged horizontally. The disadvantage is that the suspended matter in the water will soon deposit on the surface of the filter material and block the water flow channel. The impact resistance of the material load is small; the energy consumption of backwashing is large; the service life of the filter material is short

[0004] 1. Although it is a vertical filter disc, due to the limited diameter of the central water outlet shaft, when the number of filter discs is large and the processing capacity increases, the water outlet flow rate in the center water outlet shaft is too high, and the water outlet resistance becomes larger, which affects the water outlet. The central water outlet shaft will also be bent and deformed, so only 16 filter discs can be installed at most, which is not suitable for large-scale water plants

[0005] 2. The suction cups in the anti-suction device are in direct contact with the filter cloth. When performing back-suction, the filter discs alternately perform back-suction work in groups, and other filter discs without back-suction are also rotating at the same time. The relative movement of the filter cloth has the effect of smearing the suspended matter on the filter disc, which affects the filtering effect of the filter cloth and the subsequent back-suction effect, and artificially increases the number of contact friction between the suction cup and the filter cloth, reducing the Service life of fiber filter cloth

[0006] 3. The linear speed difference between the inner ring and the outer ring of the suction port is too large during back suction, and the backwashing effect of the inner and outer rings of the filter plate is difficult to be consistent

[0007] 4. The floor area of ​​the pool is relatively large

[0008] 5. The filter disc is hexagonal, the motion track of the suction cup is circular, and the filter disc is divided into six frames too much; therefore, the effective filtering area of ​​the filter disc is small

[0009] 6. The overall structure is relatively complicated, especially the connecting hexagon between the filter disc and the central water outlet shaft is not easy to make and difficult to weld and install

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