Fibre sand filtering material

A fiber and sand filter technology, which is applied in the field of fiber sand filter materials, can solve the problems that the fibers cannot be cleaned, affect the use of customers, and output attenuation, etc., so that the fibers can not fall off, the consolidation is firm, easy to clean, and the water head loss is small. Effect

Inactive Publication Date: 2009-04-15
上海峰渡水净化工程有限公司
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  • Abstract
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  • Claims
  • Application Information

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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

Method used

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  • Fibre sand filtering material

Examples

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Example Embodiment

[0012] Example 1: Fiber sand filter material. Several strands of fiber filament filter material 1 intersect at one point in multiple directions in space. Each strand of fiber filament filter material 1 has a diameter of φ2mm. The synthetic resin is melted by electric heating at the crossing point. The strands of fiber filament filter material 1 are firmly fused together to form a sand-like core 2, the diameter of the sand-like core 2 is φ0.4mm, and the outer surface of each strand of fiber filament filter material 1 is 2 mm higher than the outer surface of the sand-like core 2.

Example Embodiment

[0013] Example 2: Fiber sand filter material, consisting of several strands of fiber filament filter material 1 intersecting at one point in multiple directions in space, each strand of fiber filament filter material 1 has a diameter of φ5mm, and the synthetic resin is melted by electric heating at the crossing point. The strands of fiber filament filter material 1 are firmly fused together to form a sand-like core 2, the diameter of the sand-like core 2 is φ4mm, and the outer surface of each strand of fiber filament filter material 1 is 6mm higher than the outer surface of the sand-like core 2.

[0014] Two specifications of fiber yarn filter materials have been tried. Under the condition of filter speed of 40m / h and filter cycle of 20h, the average suspended solids removal rate is 99%, the backwash water consumption rate is 1.2%, and the remaining mud rate is 1%, reaching the leading domestic level. .

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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 ...

Claims

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Application Information

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IPC IPC(8): B01D39/02
Inventor 杨明张宏义
Owner 上海峰渡水净化工程有限公司
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