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Preparation method of ball clay for ceramic body

A technology of ceramic blanks and ball clay, which is applied in the field of preparation of ball clay for ceramic blanks, can solve the problems of natural resource consumption, reduce glaze surface pinholes and air bubbles, rationalize particle distribution, and improve the combination of luster and green body Effect

Inactive Publication Date: 2021-02-26
XIAMEN XINYISHENG NONMETAL MATERIAL SCI & TECH
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  • Summary
  • Abstract
  • Description
  • Claims
  • Application Information

AI Technical Summary

Problems solved by technology

[0002] At present, ceramic raw materials mainly come from various natural minerals such as clay and feldspar. The raw materials are all non-renewable resources. The production of ceramics will inevitably lead to the consumption of natural resources.

Method used

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  • Preparation method of ball clay for ceramic body
  • Preparation method of ball clay for ceramic body
  • Preparation method of ball clay for ceramic body

Examples

Experimental program
Comparison scheme
Effect test

Embodiment 1

[0029] The invention provides a method for preparing ball clay for ceramic billets. figure 1 The preparation process for ceramic universal composite ball clay specifically includes the following steps:

[0030] Step 1, preparation of coarse-grained kaolin

[0031] Step 1.1, grading: Put kaolin into the slurry tank for mashing and add dispersant water glass to obtain a slurry with a concentration of 15%. The slurry is classified by a Φ75 type cyclone, and the bottom flow is taken for later use;

[0032] Step 1.2, peeling: the graded kaolin underflow is subjected to high-speed shearing and peeling through a peeling machine;

[0033] Step 1.3, Magnetic Separation: Purify the peeled slurry through an electromagnetic high-gradient magnetic separator, and enrich to obtain coarse-grained kaolin.

[0034] Step 2, preparation of porcelain white sand

[0035] The secondary tailings of kaolin are firstly pre-selected by a permanent magnet plate magnetic separator, then selected by an ...

Embodiment 2

[0042] Except that the mass ratio of coarse-grained kaolin and porcelain white sand in step 3.1 in Example 1 was changed to 85:15, other steps were consistent with Example 1, and the mud cake obtained at last was numbered mud cake 2.

[0043] Among them, the whiteness and composition of coarse-grained kaolin before and after magnetic separation are shown in Table 1, and the whiteness value of coarse-grained kaolin after magnetic separation after calcination has increased to 91.3%; the whiteness value and composition of porcelain white sand before and after magnetic separation are shown in Table 1 2. The whiteness value of the porcelain white sand after magnetic separation after calcination has increased to 83.4%.

[0044] Whiteness and chemical composition (%) of table 1 coarse-grained grade kaolin

[0045]

[0046] Whiteness and chemical composition (%) of table 2 porcelain white sand

[0047]

[0048] The obtained mud cake 1 and mud cake 2 were calcined at 1280°C resp...

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Abstract

The invention discloses a preparation method of ball clay for a ceramic body, which comprises the steps of preparing kaolin into slurry with the concentration of 15%, adding a dispersing agent sodiumsilicate, grading by a phi75-type cyclone to obtain underflow, and carrying out stripping and magnetic separation on the underflow to obtain coarse-grained kaolin; and carrying out magnetic separationon the kaolin secondary tailings to obtain the ceramic white sand. Coarse-grained kaolin and ceramic white sand are compounded to replace a raw ore soil raw material, the coarse-grained kaolin subjected to magnetic separation and the ceramic white sand subjected to magnetic separation are uniformly mixed according to the ratio of 3: 1-17: 3, the ball clay for the ceramic body is obtained throughthe steps of stripping, reselection, filter pressing and the like, and the single-sample whiteness value is not lower than 75% after calcination at the temperature of 1280 DEG C. According to the preparation method, the comprehensive cost of manpower, material resources, chemical material expenses and the like is reduced, the self-made general composite ball clay is adopted to replace natural rawore soil raw materials under the condition that the whiteness and the quality of daily porcelain are not affected, dynamic balance between raw material supply and consumption is achieved, and coordinated development of the ceramic industry and the non-metal industry is promoted.

Description

technical field [0001] The invention relates to the field of ceramic raw materials, in particular to a method for preparing ball clay for ceramic blanks. Background technique [0002] At present, ceramic raw materials mainly come from various natural minerals such as clay and feldspar. The raw materials are all non-renewable resources, and the production of ceramics will inevitably lead to the consumption of natural resources. With the continuous innovation of technology, the performance of products continues to develop in depth, and the scope of application of products is also continuously expanded. The preparation of ceramic standard general raw materials is conducive to optimizing the rational use of natural resources. Construction waste soil contains a lot of kaolin, if the construction waste soil can be utilized to prepare ball clay as a general-purpose raw material for ceramics, waste utilization can be realized and energy can be saved. The preparation of general-purp...

Claims

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Application Information

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IPC IPC(8): C04B33/04C04B33/13C04B33/16
CPCC04B33/04C04B33/16C04B33/131
Inventor 胡启明邵钢条庄海鹏张武艺张秋平雷付国夏秀平邵合图徐燕
Owner XIAMEN XINYISHENG NONMETAL MATERIAL SCI & TECH
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