Technology for preparing blank for constructive ceramic with semi-drying method

A semi-dry technology for architectural ceramics, applied in clay preparation equipment, clay processing equipment, chemical instruments and methods, etc., can solve problems such as susceptibility to iron pollution, poor material uniformity, tail gas pollution, etc., to reduce drying heat low energy consumption, easy purification and treatment, and little air pollution

Active Publication Date: 2008-02-13
浙江中地大科技有限公司
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AI Technical Summary

Problems solved by technology

[0005] Aiming at the disadvantages of high energy consumption and serious tail gas pollution in the current wet milling process, and poor material uniformity and susceptibility to iron pollution in the dry milling process, the purpose of the present invention is to provide a low energy consumption, light pollution, Semi-dry method for preparing blanks for architectural ceramics with uniform material properties and no iron pollution

Method used

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  • Technology for preparing blank for constructive ceramic with semi-drying method

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Comparison scheme
Effect test

Embodiment 1

[0041] As shown in Figure 1, a kind of semi-dry method prepares the technique of building ceramics blank, it comprises the following steps:

[0042] (1) Batching: According to the proportioning of conventional building ceramics production raw materials, weighing (mass percentage): 39.0% feldspar, 13.0% quartz sand, 45.0% clay, 3.0% talc, put into the ball mill;

[0043] (2) Wet ball milling: the raw material is finely ground into a slurry in a ball mill by using a conventional wet ball milling process, the water content of the slurry is 35% (mass), and the particle size is less than 2% (mass) after the sieve residue on a 10,000-hole sieve;

[0044] (3) Iron removal and sieving: the slurry is passed through a magnetic separator to remove iron impurities in the slurry, and then passed through a 140 mesh sieve to screen out coarse particles, flow into the slurry pool, and store as the slurry for subsequent use;

[0045] (4) Preparation of dry powder: dehydrating and drying a part...

Embodiment 2

[0052] A semi-dry method for preparing blanks for architectural ceramics, comprising the following steps:

[0053] (1) Batching: According to the proportioning of conventional building ceramics production raw materials, weighing (mass percentage): 39.0% feldspar, 13.0% quartz sand, 45.0% clay, 3.0% talc, put into the ball mill;

[0054] (2) Wet ball milling: the raw material is finely ground into a slurry in a ball mill by using a conventional wet ball milling process, the moisture content of the slurry is 33% (mass), and the particle size is less than 2% (mass) after the sieve residue on the 10,000-hole sieve;

[0055] (3) Iron removal and sieving: the slurry is passed through a magnetic separator to remove iron impurities in the slurry, and then passed through a 140 mesh sieve to screen out coarse particles, flow into the slurry pool, and store as the slurry for subsequent use;

[0056] (4) Preparation of dry powder: dehydrating and drying a part of the slurry obtained in st...

Embodiment 3

[0063] A semi-dry method for preparing blanks for architectural ceramics, comprising the following steps:

[0064] (1) Batching: According to the proportioning of conventional building ceramics production raw materials, weighing (mass percentage): 39.0% feldspar, 13.0% quartz sand, 45.0% clay, 3.0% talc, put into the ball mill;

[0065] (2) Wet ball milling: the raw materials are finely ground into a slurry in a ball mill by conventional wet ball milling process, the moisture content of the slurry is 38% (mass), and the particle size is less than 2% (mass) after the sieve residue on a million-hole sieve;

[0066] (3) Iron removal and sieving: the slurry is passed through a magnetic separator to remove iron impurities in the slurry, and then passed through a 140 mesh sieve to screen out coarse particles, flow into the slurry pool, and store as the slurry for subsequent use;

[0067] (4) Preparation of dry powder: dehydrating and drying a part of the slurry obtained in step (3) ...

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Abstract

The present invention relates to a technology for manufacturing the blank of architectural ceramics. The technology is a semi-dry one for manufacturing the blank of architectural ceramics; the technology is characterized in that the technology comprises the following steps: materials batching that materials are quantified according to regular production materials proportion of architectural ceramics and the materials is put into a ball grinder; wet ball grinding; the iron material is sifted out; the dry powder is manufactured: a part of the pulp manufactured through the process (3) is made into dry powder; spraying powder dry grain manufacturing: one share of the pulp made through the process (3) is sprayed into a spraying powder drier to form pulp fogdrop, i.e. wet core; 4 to 7.5 shares of dry powder are sprayed into the spraying powder drier made through the process (4) to form a dispersed distribution state; the wet core contacts and fully absorbs the dispersed dry powder to from grains of dry powder-pulp drop inclusion which is wet inside and dry outside; rolling and solidifying of the grains to form ball blank; vibrating and sifting out; water content is modulated and fossilized to form the blank used for architectural ceramics. The present invention boasts of low energy consumption, light pollution, material evenness and no iron pollution.

Description

technical field [0001] The invention relates to a process for preparing blanks for building ceramics. Background technique [0002] The basic technological process of building ceramics production is: raw material preparation blank → pressing molding → green body drying → firing → ceramic products. (Note, the "blank" prepared by mixing raw materials is also often called "powder", which is essentially a powder particle with a particle size of 0.2-0.8mm composed of fine powder combined with a small amount of water). In the press molding process, the blank needs to be filled in the mold cavity of the brick press, and then pressure is applied, and the blank is pressed into a ceramic green body under the action of pressure. When pressing and forming, the air in the gap of the blank must be discharged smoothly, otherwise, after the pressure is released, the residual compressed air will cause the ceramic body to delaminate and become a waste blank. In order to effectively overcome...

Claims

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Application Information

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Patent Type & Authority Applications(China)
IPC IPC(8): B28C1/10B28C1/18B28C1/16
Inventor 周俊王焰新舒杼
Owner 浙江中地大科技有限公司
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