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Improved sintering process for Jianshui purple pottery

A technology of Jianshui purple pottery and craftsmanship, applied in clay products, other household utensils, household utensils, etc., can solve problems such as difficulty in meeting people's diverse needs, high energy consumption, single color, etc., and achieve excellent product quality and fuel saving. , natural color effect

Active Publication Date: 2016-05-25
云南浪鬼建水陶文化有限公司
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  • Application Information

AI Technical Summary

Problems solved by technology

The colors presented by the traditional two firing methods are too single, and it is difficult to meet the diverse needs of people
In addition, traditional dragon kiln firing takes 30 to 72 hours. During the long firing process, it not only consumes a lot of energy, but also has an impact on the environment.

Method used

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Embodiment Construction

[0007] An improved firing process of Jianshui purple pottery, the firing process is as follows: put the Jianshui purple pottery to be fired in a firewood kiln, close the kiln door, and fire three pieces at a low fire stage of 0°C to 300°C hours, 300°C-700°C for 4 hours at medium fire stage, 700°C-1140°C for 7 hours at high-fire stage; The flue gate of the kiln is adjusted to fully open to ensure that the atmosphere in the kiln is not restored in advance. When the temperature in the kiln reaches 1140°C, 30kg of wood chips are continuously and evenly thrown into the kiln within 1 hour. In the process of adding sawdust, the minerals in the sawdust react with the minerals in the clay at high temperature to form unique colors and changes. During the burning of sawdust, the green body will also undergo partial reduction or oxidation reactions, or Oxidation and reduction occur simultaneously, thereby creating new changes. Stop the fire immediately after throwing sawdust, close all v...

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Abstract

Provided is an improved sintering process for Jianshui purple pottery. The process comprises the following sintering process that the Jianshui purple pottery to be sintered is placed in a wood-fired kiln, a kiln door is closed, sintering is carried out for 3 hours in a low flame stage at the temperature of 0 to 30 DEG C, sintering is carried out for 4 hours in a medium flame stage at the temperature of 300 DEG C to 700 DEG C, and sintering is carried out for 7 hours in a big fire stage at the temperature of 700 DEG C to 1,140 DEG C; in the whole process from the low flame stage to the big flame stage through the medium flame stage, a flue gate plate of the wood-fired kiln is adjusted to be fully opened to guarantee that an atmosphere in the kiln is not reduced in advance; when the temperature in the kiln reaches 1,140 DEG C, 30 kg of wood bits is continuously and evenly put into the kiln within one hour, the fire is immediately stopped after all the wood bits are put in, all vent ports and flues are closed, and the temperature is reduced till the Jianshui purple pottery can be taken out. According to the process, purple pottery products with rich color changes can be obtained through sintering, sintering time can be shortened, and energy saving and emission reducing are achieved.

Description

technical field [0001] The invention relates to the technical field of purple pottery firing technology. Background technique [0002] The firing of purple pottery is one of the most critical processes in the production of Jianshui purple pottery. The traditional firing method is to use dragon kiln firing, and firewood is the main fuel. According to the different firing atmospheres, the firing methods are mainly divided into two types, one is reduction firing and the other is oxidation firing. Because the clay of Jianshui purple pottery is rich in iron ions, for red clay, the overall color of the pottery is black after reduction firing, and the overall color of pottery is red after oxidation firing. The colors presented by the traditional two firing methods are too single to meet the diverse needs of people. In addition, traditional dragon kiln firing takes 30 to 72 hours. During the long firing process, not only consumes a lot of energy, but also has an impact on the envi...

Claims

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Application Information

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Patent Type & Authority Applications(China)
IPC IPC(8): C04B33/32
CPCC04B33/32C04B2235/6567C04B2235/661
Inventor 肖春魁
Owner 云南浪鬼建水陶文化有限公司
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