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Production method of concave convex stick ceramic grain filter

A technology of ceramsite filter material and production method, which is applied in separation methods, chemical instruments and methods, filtration separation, etc., can solve the problems of destroying the crystal structure of attapulgite, poor film formation and adsorption performance, and affecting the overall performance of the product. Achieve the effects of low price, simple production method, good social and ecological benefits

Inactive Publication Date: 2008-10-08
许盛英
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  • Summary
  • Abstract
  • Description
  • Claims
  • Application Information

AI Technical Summary

Problems solved by technology

[0004] The weak point of above-mentioned invention is, 1, raw material " pulverization degree is 0.15-2.25mm ", and its granularity is too big, " after adding water to agglomerate ", can not form a kind of close combination between the particle, causes particle strength to be lower
[0005] 2. After the attapulgite is "sintered at a temperature of 900-1200°C", the special crystal structure of the attapulgite will be destroyed. The surface of the ceramsite is easy to be glazed under high temperature sintering, and the film-hanging and adsorption properties are relatively poor, which affects its products. overall performance of

Method used

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Embodiment 1

[0023] Embodiment 1: The production method of the attapulgite ceramsite filter material for processing domestic water is that the attapulgite ceramsite filter material batching comprises the following components by weight percentage: attapulgite clay 40%, coal gangue 35% and pozzolan 25% %; Mix the above ingredients and transport them to the mill for grinding. The fineness of the particles should be ≤0.074 mm; use the mixed material after grinding and input it into the granulator for granulation, and the particle size should be controlled at 2-10 mm; The granulated granules are sent to a roasting furnace for roasting, and the roasting temperature is controlled at 450°C; the roasted granules should be sieved, and the particle size is controlled at 2-10 mm, and they are packaged as finished products.

Embodiment 2

[0024] Embodiment 2: the production method of the attapulgite ceramsite filter material for processing industrial sewage is that the attapulgite ceramsite filter material batching comprises the following components by weight percentage: attapulgite clay 50%, coal gangue 35% and pozzolan 15% %. The above ingredients are mixed and transported to the mill for grinding. The particle fineness should be ≤0.074 mm; use the ground mixture and input it into the granulator for granulation, and the particle size is controlled at 4-15 mm; after granulation The finished granules are sent to a roasting furnace for roasting, and the roasting temperature is controlled at 500°C; the roasted granules should be sieved, and the particle size is controlled at 4-15 mm, and they are packaged as finished products.

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Abstract

The invention discloses a produce method for concavo-convex bar ceramsite filtering material. Wherein, the said filter material comprises concavo-convex bar clay, coal gangue and volcanic ash, and is produced by burdening, milling, granulating, baking, screening and packaging. The filter material has rough surface, well bonding film property, small flow resistance, and well stability and adsorption properties. This invention needs low cost and baking temperature, can save much energy, has no secondary pollution and fit to water purification treatment.

Description

Technical field: [0001] The invention relates to a filter material, in particular to a production method of an attapulgite ceramsite filter material. Background technique: [0002] In the water purification process, a large amount of ceramsite filter material is often used. The traditionally used ceramsite filter material is made of clay, clay and other raw materials, which are sintered after granulation, which wastes a lot of land resources. In recent years, the ceramsite produced with fly ash and coal gangue as the main raw materials has been successfully developed and put into production and use. However, the ceramsite produced with fly ash and coal gangue as the main raw materials requires a higher sintering temperature. The sintering temperature is mostly between 1100 and 1200°C, which consumes a lot of energy, and the ceramsite produced with fly ash and coal gangue as the main raw materials is brittle and fragile, and the surface of ceramsite is easy to be glazed under...

Claims

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Application Information

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Patent Type & Authority Patents(China)
IPC IPC(8): B01D39/06C04B33/13
Inventor 许庆华
Owner 许盛英
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