Filtering board

Abstract

The invention discloses a filtering plate which has simple structure, small space usage, light deadweight, short construction period, low cost and low energy consumption, and is uneasy to leak sand, can filtrate in double directions-positive and negative directions and can evenly distribute water and gas. The invention contains a plurality of funnels (1). The superior walls between the funnels (1) are extended outward and through which the funnels are connected together. The funnel (1) contains a bucket part (2), which is arranged on the upper part of the funnel, and a guide tube part (3), which is arranged on the lower part of the funnel. A plurality of water and gas distributing holes (4) are arranged on the tube wall of the guide tube part (3). The bottom of the guide tube part (3) is sealed. The invention can be widely applied in water treatment filtration process.

Description

technical field [0001] The invention relates to a filter plate, in particular to a filter plate used for water distribution and air distribution in the water supply filtration process. Background technique [0002] At present, perforated pipes, filter bricks, filter heads and other water distribution and gas distribution systems are used in the water supply and filtration process. The perforated pipe water distribution and gas distribution system has been used for a long time, but due to uneven water and gas distribution, high energy consumption and easy leakage Sand and other problems are rarely used now; ceramic filter bricks and other systems are rarely used because they cannot adapt to the commonly used air flushing technology; The problem is that it has obvious advantages and has been widely used since the end of the last century. However, the system also has disadvantages, such as high cost and complex structure, especially the supporting filter plates, concrete beams ...

AI Technical Summary

Problems solved by technology

[0002] At present, perforated pipes, filter bricks, filter heads and other water distribution and gas distribution systems are used in the water supply and filtration process. The perforated pipe water distribution and gas distribution system has been used for a long time, but due to uneven water and gas distribution, high energy consumption and easy leakage Sand and other problems are rarely used now; ceramic filter bricks and other systems are rarely used because they cannot adapt to the commonly used air flushing technology; The problem is that it has obvious advantages and has been widely used since the end of the last century. However, the system also has disadvantages, such as high cost and complex structure, especially the supporting filter plates, concrete beams and columns, etc. need to occupy a large space in the filter tank, and the construction period is long. Reverse filtration; the all-plastic composite filter bricks that have appeared in recent years have a compact structure and a small footprint, but the cost is high, and the uniformity of water and gas distribution is not good enough

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