Lightweight ceramicite and preparation method thereof

A lightweight ceramsite and granulation technology, which is applied to ceramic products, clay products, and other household appliances, can solve the problem of less industrial waste and achieve strong biological adhesion, strong sewage interception ability, chemical and physical stability Good results

Inactive Publication Date: 2008-07-23
JIANGXI UNIV OF SCI & TECH
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  • Summary
  • Abstract
  • Description
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AI Technical Summary

Problems solved by technology

Bio-filter lightweight ceramsite is an important method of economical and convenient water treatment. Bio-filter ceramsite is mainly used as a carrier of microorg

Method used

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Examples

Experimental program
Comparison scheme
Effect test

Embodiment 1

[0014] The tailings of a tungsten mine in Jiangxi were modified with 15-25% HCl to make it have a large number of holes; the modified tailings of a tungsten mine in Jiangxi were 55.5%, slag ash 16.5%, fly ash 16.5%, Clay 10%, pore-forming agent wood pulp 1%, binder modified starch 0.5% to prepare ceramsite; put the ceramsite in an oven at room temperature, bake at 120°C for 1h, put it in a muffle furnace for 1h The temperature range is gradually raised to 500°C; after 10 minutes of constant temperature, it is pre-fired; then it is put into a 1100°C furnace and burned for 30 minutes, and it is naturally cooled to room temperature when it is taken out of the furnace.

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Abstract

The invention relates to a light ceramisite and a preparation method, comprising processes such as modification treatment of the raw material, the biological preparation, granulation, drying, baking and roasting etc. The invention is characterized in that the component and volume percent of the raw materials comprise: 30-70 percent of tailing of tungsten mine; 15-22.5 percent of cinder; 15-22.5 percent of fly ash; 10-14.5 percent of clay; 0.1-3 percent of pore-forming material; 0.2-1 percent of modified adhesive of biological material; the preparation technology is that after subject to modification treatment using 15-25 percent of HC1, the tailing of tungsten mine is prepared to be the ceramisite together with materials with different melting temperatures such as the cinder, the fly ash, the clay etc., as well as the pore forming agent and adhesive; then the tailing of tungsten mine is put into an oven below normal temperature for baking below 120 DEG C for 1 hour, and placed into a muffle furnace for gradually heating up to 500 DEG C within 1 hour; presintered after kept constant temperature for 10 min; then entered into a furnace up to 800 - 1120 DEG C for burning for 30 minutes, finally discharged to be naturally cooled down to normal temperature.

Description

technical field [0001] The invention relates to a biological filter ceramsite material used for water treatment, in particular to a lightweight ceramsite and a preparation method thereof. Background technique [0002] As we all know, there are many methods of wastewater treatment, mainly physical and biochemical, ion exchange, adsorption, chemical oxidation, electrodialysis and coagulation. Bio-filter lightweight ceramsite is an important method of economical and convenient water treatment. Bio-filter ceramsite is mainly used as a carrier of microorganisms and is widely used in biofilm treatment of wastewater. However, the current bio-filter Lightweight ceramsite production materials use less industrial waste. Contents of the invention [0003] The purpose of the present invention is to provide a kind of lightweight ceramsite that utilizes industrial waste as the main material; [0004] Another object of the present invention is to provide a lightweight ceramsite with re...

Claims

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Application Information

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IPC IPC(8): C04B33/04C04B33/138C04B33/32C04B38/00
CPCY02P40/60
Inventor 冯秀娟朱易春
Owner JIANGXI UNIV OF SCI & TECH
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