Gravity type air scrubbing filter pool

Abstract

The invention discloses a gravity type air scrubbing filter pool which comprises a pool body (1), a clean water storehouse (2) and a filter bin (3), wherein an overflow opening (4) is formed in the clean water storehouse (2); the filter bin (3) is connected with an external raw water pool through a water feeding pipe (5); a filter layer (6) is arranged at the lower part of the filter bin (3) and is arranged on a multihole filter plate (7); an aeration coil pipe (8) is arranged on the lower side of the multihole filter plate (7) and is connected with an external air source through a compressed air interface (9) in the pool body (1); a communicating pipe (10) for communicating the clean water storehouse (2) and the filter bin (3) is arranged on the pool body (1); and a lower interface of the communicating pipe (10) is positioned on the pool body (1) on the lower side of the multihole filter plate (7). By combining air-water bottom-to-top backwashing and water top-to-bottom well washing, the gravity type air scrubbing filter pool is good in cleaning effect and low in production cost, improves the production efficiency and is suitable for popularization and use.

Description

technical field [0001] The invention relates to the technical field of water treatment, in particular to a novel filter device which combines the air scrubbing function of a valveless filter tank and a mechanical filter, specifically a filter device with the functions of air-water backwash and water forward wash Gravity air scrubbed filter. Background technique [0002] In the field of water treatment technology, after the filter has been used for a period of time, due to the continuous interception of suspended solids in the filter layer, the resistance of the filter layer increases and the turbidity of the effluent increases. Therefore, the filter layer needs to be cleaned. The air washing mechanism in the existing backwashing equipment is generally set on the upper side of the filter layer to perform air washing, water washing or air-water mixed scrubbing on the filter layer. This backwashing method can only backwash a large amount of suspended matter Part, a small part...

AI Technical Summary

Problems solved by technology

The air washing mechanism in the existing backwashing equipment is generally set on the upper side of the filter layer to perform air washing, water washing or air-water mixed scrubbing on the filter layer. This backwashing method can only backwash a large amount of suspended matter. Part, a small part of suspended solids go deep into the inside of the filter layer and are difficult to wash out, resulting in a continuous decline in water treatment efficiency, which requires replacement of filter materials, and at the same time, it is easy to cause blockage of the air washing mechanism, increasing production costs and reducing production efficiency

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