Fibre sand filtering material

Abstract

The invention belongs to filter equipment in the field of water treatment, and in particular relates to a fiber sand filter material. The fiber sand filter material is characterized in that a plurality of threads of fiber filter materials are intersected at a point in space all around; the diameter of each thread of the fiber filter material ranges from phi 1 to phi 6 millimeters; the threads of fiber filter materials are firmly inosculated together at the intersections by an inosculating substance to form a sand core; the diameter of the sand core ranges from phi0.3 to phi5 millimeters; each thread of the fiber filter material is 0.1 to 10 millimeters higher than the external surface of the sand core; and the specific gravity of the sand core can be adjusted according to requirements through adopting different inosculating substances. Compared with the sand filter material, the fiber sand filter material has the characteristics of high filter speed, high water filtering precision, little water head loss, large dirt content, easy cleaning, and the like. Compared with a fiber bundle and a fiber ball filter material, the fiber sand filter material possesses the strong points of the prior sand filter, is easy to clean, has good liquidity, can realize synchronous operations of running and backwashing, is convenient to operate, and is not limited in the filling direction. The fiber sand filter material does not drop off and is firmly consolidated during running and backwashing.

Description

technical field [0001] The invention belongs to filter equipment in the field of water treatment, and in particular relates to a fiber sand filter material. Background technique [0002] Fiber has been used in the field of water treatment as a filter material for filtration equipment for a long time. Compared with traditional granular filter materials, it has a series of advantages such as high filtration speed, small footprint, high filtration precision, and large sewage interception capacity. advantage. [0003] At present, there are two types of fiber filter materials in the market: fiber bundle and fiber ball filter material. The former belongs to fiber bundle with fixed ends. It has obvious disadvantages. The bound ends have fibers about 200mm long and cannot be cleaned. As a result, the output rapidly attenuates, and the filter material needs to be stopped soon to be replaced; in the latter, because the backwash air water at the binding place cannot pass through this ...

AI Technical Summary

Problems solved by technology

[0003] At present, there are two types of fiber filter materials on the market: fiber bundle and fiber ball filter material. The former belongs to fiber bundle, with both ends fixed, and has obvious disadvantages. The bound two ends have fibers about 200mm long and cannot be cleaned.

As a result, the output rapidly decays, and the filter material needs to be stopped soon to be replaced; in the latter, because the backwash air water at the binding place cannot pass through this space, it is easy to form mud core bacteria and cause ball formation, and finally the filter material has to be replaced in a short period of time, and once If the central binding part is loose, it will shed hair until it is completely scattered, and the fibers will enter the client end with water, which will seriously affect the use of customers

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