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Method for preparing shell porcelain by using shells and shell porcelain

A technology of shells and shell powder, which is applied in applications, household utensils, clay products, etc., can solve the problems of narrow firing range, complicated preparation process, and large firing deformation, so as to save calcination energy consumption, simplify the process flow, and improve The effect of viscosity

Active Publication Date: 2019-10-11
CHAOZHOU QINGFA CERAMICS
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  • Summary
  • Abstract
  • Description
  • Claims
  • Application Information

AI Technical Summary

Problems solved by technology

[0004] Aiming at the problems of complex preparation process, large firing deformation, narrow firing range, heavy metals such as lead, many pores, high water absorption rate and low yield of finished products in shell porcelain, the present invention provides a method for preparing shell porcelain from shells. Method and shell porcelain obtained therefrom

Method used

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  • Method for preparing shell porcelain by using shells and shell porcelain
  • Method for preparing shell porcelain by using shells and shell porcelain
  • Method for preparing shell porcelain by using shells and shell porcelain

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Embodiment 1

[0055] A method for preparing shell porcelain from shells, wherein the raw material components of the shell porcelain include 25% shell powder, 20% albite, 15% alumina-silicate spinel, 5% silica powder, Yunnan mud 30%, Chaozhou black mud 5%, shell powder particle size less than 5mm, silica powder particle size less than 2μm, and the SiO 2 The content is about 99.5%.

[0056] The method for preparing shell porcelain from shells comprises the following steps:

[0057] S11. Clean the sand and sludge remaining on the surface of the shell to make the surface of the shell clean, and take samples to scan the surface of the shell with SEM. The specific scanning results are as follows figure 1 As shown; then the shells were soaked in acetic acid solution with a mass concentration of 0.4%, and the soaking time was 2.0min. After soaking, the shells were taken out, and the soaked samples were taken for SEM scanning. The results were as follows: figure 2 As shown, the subsequently soake...

Embodiment 2

[0067] A method for preparing shell porcelain from shells, wherein the raw material components of the shell porcelain include 25% shell powder, 25% albite, 14% aluminum silicon spinel, 6% silica powder, Yunnan mud 28%, Chaozhou black mud 2%, shell powder particle size less than 5mm, silica powder particle size less than 2μm, its SiO 2 The content is about 99.5%.

[0068] The method for preparing shell porcelain from shells comprises the following steps:

[0069] S21. Clean the residual sand and sludge on the surface of the shell to make the surface of the shell clean, then soak the shell in an acetic acid solution with a mass concentration of 0.5%, and the airtight soaking time is 1 min. After soaking, take out the shell and pulverize the shell to obtain The particle size of shell powder is not greater than 5mm;

[0070] S22. Weigh 25kg shell powder (from shell consumption, particle size not greater than 5mm), 25kg feldspar, 14kg aluminum silicon spinel, 6kg silicon micropow...

Embodiment 3

[0079]A method for preparing shell porcelain from shells, wherein the raw material components of the shell porcelain include 20% shell powder, 25% feldspar, 10% aluminum silicon spinel, 10% silicon micropowder, Yunnan mud 30%, Chaozhou black mud 5%, shell powder particle size less than 5mm, silica powder particle size less than 2μm, its SiO 2 The content is about 99.5%.

[0080] The method for preparing shell porcelain from shells comprises the following steps:

[0081] S31. Clean the residual sand and sludge on the surface of the shell to make the surface of the shell clean, then soak the shell in an acetic acid solution with a mass concentration of 0.3%, for 1.5 min, take out the shell after soaking, and pulverize the shell to obtain The particle size of shell powder is not greater than 5mm;

[0082] S32. Weigh 20kg shell powder (particle size not greater than 5mm), 25kg feldspar, 10kg aluminum silicon spinel, 10kg silicon micropowder (particle size not greater than 2μm, S...

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Abstract

The invention provides a method for preparing shell porcelain by using shells and the shell porcelain. The method comprises the following steps that the shells are placed in an acetic acid solution tobe soaked for 1-2 minutes, then taken out and pulverized into shell powder; feldspar, aluminum-silicate spinel, silicon micropowder, clay, water and the shell powder are ball-milled according to a raw material mass ratio, impurity removal and sieving are conducted after the mixture is taken out of a mill, pressing filtration is conducted to remove excess water, a pug material with the water content of 24-25% is prepared and made into a blank, and the blank is finished, dried, glazed and fired at 1,240-1,280 DEG C to obtain the shell porcelain. According to the method, the shells soaked with acetic acid are directly used as an ingredient, the situation that excess calcium enters a melt is avoided, low-temperature sintering of the blank is promoted by introducing the silicon micropowder, the viscosity of the melt in the blank at high temperature is improved, the firing temperature range of the product is enlarged, and the problem of deformation of porcelain products produced by using shells is solved. Thus, the obtained shell porcelain product has a high finished product rate, a small shrinkage rate, a low water absorption rate and a small number of pores.

Description

technical field [0001] The invention belongs to the technical field of porcelain, and in particular relates to a method for preparing shell porcelain from shells and the shell porcelain. Background technique [0002] Shells are the by-products produced after the edible meat parts of shellfish are taken out. In common shellfish seafood, shells account for more than 60% of the mass of shellfish. The main processing method of shells is to make shell ash by calcination, but because of the large amount of smoke generated during the calcination process, which causes serious pollution to the environment, it has been banned by the environmental protection department. In addition, shells can also be used as medicine, handicrafts, and feed additives, but the rate of consumption of shells in these ways is very slow compared to the number of shells produced by farming techniques. A large number of shells become garbage and spread all over coastal beaches and rural fields. On the one ha...

Claims

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Application Information

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IPC IPC(8): C04B33/24C04B33/132C04B33/34C04B41/86C03C8/00
CPCC03C8/00C04B33/132C04B33/24C04B33/34C04B41/86C04B2235/3222C04B2235/3418C04B2235/3463Y02P40/60
Inventor 邱伟志刘绍忠
Owner CHAOZHOU QINGFA CERAMICS
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