Quartz sand filter

Abstract

The invention relates to a quartz sand filter. The quartz sand filter comprises a cylinder body, an upper seal head, a lower seal head, support legs, a support plate, water caps, a first filtering layer, a second filtering layer and a support layer, wherein the upper seal head is arranged above the cylinder body; the lower seal head is arranged under the cylinder body; the support legs are arranged at the bottom part of the cylinder body; the support plate is arranged under the interior of the cylinder body; the water caps are arranged above the support plate; the first filtering layer, the second filtering layer and the support layer are sequentially arranged above the water caps from top to bottom; a manhole and a viewing mirror are arranged in / at the upper half part of the cylinder body, and a discharging port is arranged in the lower part of the cylinder body; a raw water inlet is arranged in the center of the upper seal head, and is connected with an upper water distribution device, and a water production outlet is arranged in the center of the lower seal head; a support pipe is arranged under the support plate, is positioned between the support plate and the lower seal head, and is used for bearing the pressure produced by filtering material on the support plate, and reinforcing the load of the support plate; the water caps are uniformly distributed on the support plate; screw nuts are pre-welded at circular holes under the support plate, so as to facilitate the quick installation of the water caps. The quartz sand filter has the advantages that the structure is simple, the operation is convenient, the water distribution is uniform, the channeling is avoided, the service cycle is long, and the water purifying effect is good.

Description

technical field [0001] The invention relates to a filtering device, in particular to a quartz sand filter, which belongs to the technical field of water treatment. Background technique [0002] Quartz sand filter is a pressure filter device with refined quartz sand as the filter medium. The simple working process of the quartz sand filter is as follows: the raw water enters the filter through the water inlet, and under a certain pressure, when the water flows through the quartz sand filter layer with a certain thickness from top to bottom, the filter medium absorbs and intercepts various substances in the water. All kinds of suspended matter, microorganisms, colloids, and other fine particles are finally achieved to reduce the turbidity of the water and purify the water quality. The filtered water flows out through the outlet. [0003] Quartz sand filter has the advantages of fast filtration speed, high filtration precision, large sewage interception capacity, strong acid a...

AI Technical Summary

Problems solved by technology

[0004] The existing quartz sand filter has poor water distribution effect, and it is easy to form a dead angle of water distribution. Moreover, when the influent flow is large, the surface of the filter material is washed unevenly, and channeling is prone to occur, and the filter material is easy to be lost, which greatly reduces the The filtration effect of the filter affects the water quality of the effluent

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