High-strength ceramic granule filter material for treating water and its preparation method

Abstract

The present invention relates to a high-intensity earthen granular filter material for water treatment and its production method. It includes base body and additive, in which said base body can adoptany one of kaoline, wheat-ball stone, bentonite, shale rock and flyash or mixture of more than two materials of them, and the described additive can adopt any one of iron ore, saw dust, coal powder, heavy oil, furfural dregs or polyvinyl glycol or mixture of more than two materials of them. Its production method includes the processes of granulation and sintering.

Description

Technical field: [0001] The invention relates to a ceramic material used for water treatment, in particular to a high-strength ceramic particle filter material used for water treatment and a manufacturing method thereof. Background technique: [0002] In the prior art, ceramic filter materials are generally sintered in a downdraft kiln using a single raw material, usually clay or shale materials, which have high particle density, low strength, high energy consumption for firing, short service life and The cost is high, and it is no longer applicable to the requirements of environmental protection water treatment; at the same time, in the existing technology, a large amount of industrial waste slag discharged not only occupies valuable cultivated land, but also pollutes the environment, and due to the pelletizing process of the high-strength ceramic particle filter material in the traditional technology In the process, the three stages of cue ball formation, cue ball growth, ...

AI Technical Summary

Problems solved by technology

[0003] The technical problem to be solved by the present invention is: in the prior art, the ceramic filter material is generally sintered in a downdraft kiln with a single raw material, its particle density is high, its strength is low, its firing energy consumption is high, its service life is short and its cost is low. High, it is no longer suitable for the requirements of environmental protection water treatment; at the same time, in the existing technology, a large amount of industrial waste slag discharged not only occupies valuable cultivated land, but also pollutes the environment, and because of the pelletizing process of the high-strength ceramic particle filter material in the traditional technology , the three stages of cue ball formation, cue ball growth, and cue ball compact growth are completed in the disk at one time. In this way, during the manufacturing process, the formation of raw balls is very slow, and the structure is fragile, and it is difficult to form small balls with uniform particles.