Mud removing device for fully-submerged rotary disk filter

Abstract

The invention relates to a mud removing device for a fully-submerged rotary disk filter. The mud removing device comprises an aeration device arranged in a central rotating drum of the rotary disk filter and a mud pump arranged outside a rotary disk. A main pipe of the aeration device is fixed on a central axis of the central rotating drum; the input end of the main pipe is connected with an external air pump; the main pipe is provided with a plurality of uniformly distributed branch pipes; and air holes are densely distributed on the branch pipes. During work, the air pump is started to pump normal pressure air into the aeration device, the air passes through the main pipe and enters the branch pipes, and aeration is realized through the micropores uniformly distributed on the branch pipes; in the multi-stage air channel system, air is effectively depressurized and forms uniform small bubble curtains, and the bubble curtains float and raise to pass through rotary disk filter cloth from interior to exterior, so that the sludge deposited on the outer surface of the rotary disk filer cloth is effectively washed away from the filer cloth; and at the moment, the mud pump is started for suction, the sludge and impurities separated from the surface of the filter cloth can be effectively sucked away, so that the sludge is efficiently removed and the filter function of the rotary disk is restored.

Description

technical field [0001] The invention relates to the field of environmental protection equipment, in particular to a desilting device for a fully submerged rotary disc filter. Background technique [0002] Rotary disc filter is a new type of sewage treatment equipment, which is generally used for deep filtration of sewage. It has the advantages of small footprint, good treatment effect, and high effluent quality. Such as figure 1 As shown, the fully submerged rotary disc filter is composed of several filter discs 3 arranged on the central drum 2, and each filter disc 3 is covered with high-strength filter cloth, and the sewage enters from the water inlet hole of the water inlet weir 1 during operation. , the filter is completely immersed in the water body, and the turntable continues to rotate slowly; the external sewage to be treated penetrates from the outside to the inside of the turntable through the filter cloth on the surface of the turntable 3, and is transported to t...

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Problems solved by technology

[0004] Aiming at the disadvantages of simple structure and poor mud suction efficiency of the mud suction device of the above-mentioned existing rotary disc filter, the applicant provides a fully submerged mud remo

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