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Porous ceramic

A technology for porous ceramics and waste ceramics, applied in the field of porous ceramics, can solve the problems of raw material and product shape limitation, high cost, waste of resources, etc., and achieve the effects of simple and easy production process, low price, and pollution reduction.

Active Publication Date: 2014-10-01
JIANGSU SOUTH PORCELAIN INSULATOR CO LTD
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  • Summary
  • Abstract
  • Description
  • Claims
  • Application Information

AI Technical Summary

Problems solved by technology

[0002] At present, porous ceramics are generally made of high-quality raw materials such as corundum sand, silicon carbide, and cordierite as the main material, together with components such as binder and pore-forming agent, which are fired at high temperature. The production process is complicated and the process conditions are not easy to control. , low efficiency, high cost, limited shape of raw materials and products, high energy consumption in the process, heavy pollution, etc.
In addition, during the production and use of ceramic products, a large number of discarded ceramics or substandard products will be produced, which will cause serious environmental pollution and waste of resources.

Method used

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Examples

Experimental program
Comparison scheme
Effect test

Embodiment 1

[0011] Mix 80 parts by weight of magnesite powder, 45 parts of magnesium chloride solution, 2 parts of phosphoric acid, and 1 part of wood calcium. The Baume degree of magnesium chloride solution is 26 degrees at 20 ° C. Stir evenly to make a binder; The waste products are crushed into granules, the particle size is 5mm, the mud content of the ceramic particles is controlled to be ≤0.5%, and the particle crushing value is ≤10%; the binder and the waste ceramic particles are mixed at a weight ratio of 1:6, and stirred evenly , poured into the mold, vibrated to remove air bubbles, and after 6 hours of solidification, it was taken out from the mold to obtain the desired porous ceramic.

Embodiment 2

[0013] Basically the same as Example 1, the difference is that 85 parts of magnesite powder, 50 parts of magnesium chloride solution, 2.5 parts of phosphoric acid, 1.5 parts of wood calcium, the Baume degree of magnesium chloride solution is 27 degrees at 20 DEG C, and the particle size of waste ceramic particles is 8mm.

Embodiment 3

[0015] Substantially the same as Example 1, the difference is that 90 parts of magnesite powder, 55 parts of magnesium chloride solution, 3 parts of phosphoric acid, and 2 parts of wood calcium, the Baume degree of magnesium chloride solution is 28 degrees at 20 DEG C, and the particle size of waste ceramic particles is 10mm.

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PUM

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Abstract

The invention discloses porous ceramic using waste ceramic as a raw material. The porous ceramic comprises a binder and waste ceramic, wherein the binder is magnesium oxychloride cement, and comprises the following components: magnesium oxychloride, magnesium chloride and a modifier; the weight ratio of the binder to the waste ceramic is 1:6. The waste ceramic is utilized as a filler; the magnesium oxychloride cement is taken as a cementing material; the porous ceramic with certain strength and stability can be formed without high-temperature firing; the porous ceramic not only has the advantages of low raw material price, simple and feasible production process, and low energy consumption, but also well utilizes local resources to change the waste ceramic into treasures; not only can the target of saving energy and reducing emission of buildings be solved, but also the environment pollution caused by the waste ceramic is reduced; the principle of sustainable development is accorded.

Description

technical field [0001] The invention relates to a building material, in particular to a porous ceramic. Background technique [0002] At present, porous ceramics are generally made of high-quality raw materials such as corundum sand, silicon carbide, and cordierite, and are fired at high temperature with binders and pore-forming agents. The production process is complicated and the process conditions are not easy to control. , low efficiency, high cost, limited shape of raw materials and products, high process energy consumption, heavy pollution and other problems. In addition, during the production and use of ceramic products, a large number of discarded ceramics or substandard products will be produced, which will cause serious environmental pollution and waste of resources. [0003] If the waste ceramics can be recycled to make porous ceramics, it can not only simplify the process, reduce the cost, but also achieve the purpose of energy saving, emission reduction and env...

Claims

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Application Information

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Patent Type & Authority Applications(China)
IPC IPC(8): C04B28/32C04B14/02
Inventor 杨志峰王士维刘少华王根水周志勇周国红张营
Owner JIANGSU SOUTH PORCELAIN INSULATOR CO LTD
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