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A kind of ceramic brick and preparation method thereof

A ceramic quality and quality technology, applied in the field of ceramics, can solve the problems of complex composition and difficult product quality control, and achieve the effect of high whiteness, stable properties and lower firing temperature.

Active Publication Date: 2020-02-07
INST OF PROCESS ENG CHINESE ACAD OF SCI
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  • Summary
  • Abstract
  • Description
  • Claims
  • Application Information

AI Technical Summary

Problems solved by technology

However, the current use of industrial waste to prepare ceramics has the problems of complex composition and difficult product quality control, which limits its application.

Method used

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  • A kind of ceramic brick and preparation method thereof
  • A kind of ceramic brick and preparation method thereof
  • A kind of ceramic brick and preparation method thereof

Examples

Experimental program
Comparison scheme
Effect test

Embodiment 1

[0065] In this embodiment, the raw materials for preparing ceramic bricks include:

[0066]

[0067] In this example, the ceramic brick of the present invention was prepared by the following method.

[0068] (1) Mixing: Mix calcium silicate hydrate, pyrophyllite, black mud, potassium feldspar, quartz, kaolin, talc, diopside and china clay in the formula amount, and use water and / or water reducer as the medium, in a ball mill Medium-wet grinding, the wet-milled slurry is passed through a 250-mesh sieve, then dried to a moisture content of 10%, and stale for 24 hours to prepare powder;

[0069] Wherein, the mass of water is 50wt% of the total mass of the slurry, and the mass of the water reducing agent is 0.5wt% of the total mass of the slurry.

[0070] (2) Green body molding: the powder prepared in step (1) was pressed into a green body at 50 MPa, and dried at 170° C. for 4 hours to prepare a green body;

[0071] (3) Firing: the green body prepared in step (2) was fired at...

Embodiment 2

[0074] In this embodiment, the raw materials for preparing ceramic bricks include:

[0075]

[0076] The preparation method is consistent with that of Example 1.

Embodiment 3

[0078] In this embodiment, the raw materials for preparing ceramic bricks include:

[0079]

[0080]

[0081] The preparation method is consistent with that of Example 1.

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Abstract

The invention provides a ceramic tile and a preparation method thereof. Raw materials for preparing the ceramic tile contain calcium silicate hydrate, wherein the weight of calcium silicate hydrate accounts for 10-80wt% of the total weight of the raw materials for preparing the ceramic tile. The used calcium silicate hydrate has the advantages of high purity, high whiteness, small particle size, small loss on ignition, stable property and the like; the calcium silicate hydrate is added into the ceramic tile, so that the calcium silicate hydrate plays a role of a fusing agent, the sintering temperature of green bodies is reduced, the sintering time is shortened, production chains with high energy consumption such as smashing, ball milling and the like in a production process of the ceramic tile can also be reduced, and the overall energy consumption and pollution of the ceramic tile can be reduced. Meanwhile, the preparation method of the ceramic tile has the advantages that the cost is low, processes are simple, the energy consumption is low, and large-scale production can be realized.

Description

technical field [0001] The invention belongs to the field of ceramics, in particular to a ceramic brick and a preparation method thereof. Background technique [0002] In the process of industrial utilization of resources such as fly ash and coal gangue, a certain amount of pre-desilication solution is often produced, and its main component is sodium silicate solution. Adding calcium source can prepare a variety of hydrated silicic acid with good market prospects Calcium material, and realize the recycling of alkali. For example, the patent CN 101913613 A discloses a method for synthesizing acicular wollastonite powder from desilication lye, and the wollastonite product prepared by this method can be used in industries such as ceramics, plastics, coatings, rubber, etc., but this method requires Calcium silicate hydrate is calcined into anhydrous wollastonite, which increases the cost. Patent CN 103539139 A discloses a method for preparing xonotlite by using desilication ly...

Claims

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Application Information

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Patent Type & Authority Patents(China)
IPC IPC(8): C04B35/22
Inventor 马淑花李洋洋王建宇王晓辉郑诗礼
Owner INST OF PROCESS ENG CHINESE ACAD OF SCI