Low-cost high-strength dolomite earthen-ware green body and preparation method thereof

A white cloud ceramic green body and high-strength technology, applied in the field of ceramic products, can solve the problems of energy saving and emission reduction of white cloud pottery, reduce the degradation function of white cloud pottery, and reduce the strength of white cloud pottery, so as to promote sustainable development and expand firing The temperature range can be improved to improve the firing pass rate

Active Publication Date: 2016-09-21
FUJIAN DEHUA FIVE CONTINENTS CERAMIC MFG CO LTD
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  • Summary
  • Abstract
  • Description
  • Claims
  • Application Information

AI Technical Summary

Problems solved by technology

[0003] However, many manufacturers develop and strengthen Baiyun clay. In order to improve the mechanical strength of Baiyun pottery, increase the firing temperature (1080°C-1130°C) to achieve semi-ceramic, which reduces the degradation function of Baiyun pottery, and does not meet the energy-saving and emission reduction requirements of Baiyun pottery. Purpose
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Method used

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  • Low-cost high-strength dolomite earthen-ware green body and preparation method thereof

Examples

Experimental program
Comparison scheme
Effect test

Example Embodiment

[0020] Example one:

[0021] In this embodiment, the base material includes the following raw materials by weight percentage: 28wt% of elutriation mud, 12wt% of black clay, 1wt% of bentonite, 5wt% of pyrophyllite, 12wt% of low temperature sand, 4wt% of lithium porcelain stone, 10wt% of dolomite %, black talc 6wt%, limestone 8wt%, diopside 9wt%, Yongchun coarse soil 2wt%, waste porcelain powder 3wt%; the weight percentage of the additive relative to the base material is 1%. The additive is an organic silicon nano-liquid, and its weight percentage relative to the base material is 1%.

[0022] The preparation method of the low-cost high-strength dolomite ceramic body of this embodiment includes the following specific steps:

[0023] (1) The inferior raw materials are milled, washed, sieved, and iron removed to prepare the washing slurry;

[0024] (2) The elutriation slurry prepared in step (1) and the other raw materials in the base material are respectively ball-milled into a mill unti...

Example Embodiment

[0027] Embodiment two:

[0028] In this embodiment, the base material includes the following raw materials by weight percentage: 30wt% of elutriation mud, 15wt% of black clay, 6wt% of pyrophyllite, 13wt% of low temperature sand, 5wt% of lithium porcelain stone, 7wt% of dolomite, black talc 6wt%, limestone 7wt%, diopside 10wt%, Yongchun coarse soil 1wt%. The additive is organic silicon nano-liquid, and its weight percentage relative to the base material is 2%.

[0029] The preparation method of the low-cost high-strength dolomite ceramic body of this embodiment includes the following specific steps:

[0030] (1) The inferior raw materials are milled, washed, sieved, and iron removed to prepare the washing slurry;

[0031] (2) The elutriation slurry prepared in step (1) and the other raw materials in the base material are respectively ball-milled into a mill until the mixture particles pass a 200-250 mesh sieve, and then the slurry is discharged for use;

[0032] (3) Mix the mud prepare...

Example Embodiment

[0034] Embodiment three:

[0035] In this embodiment, the base material includes the following raw materials by weight percentage: elutriation mud 32wt%, black clay 15wt%, bentonite 1wt%, pyrophyllite 5wt%, low temperature sand 13wt%, lithium porcelain stone 5wt%, dolomite 10wt% %, black talc 7wt%, limestone 7wt%, diopside 8wt%; the weight percentage of the additive relative to the base material is 1%. The additive is an organic silicon nano-liquid, and its weight percentage relative to the base material is 1%.

[0036] The preparation method of the low-cost high-strength dolomite ceramic body of this embodiment includes the following specific steps:

[0037] (1) The inferior raw materials are milled, washed, sieved, and iron removed to prepare the washing slurry;

[0038] (2) The elutriation slurry prepared in step (1) and the other raw materials in the base material are respectively ball-milled into a mill until the mixture particles pass a 200-250 mesh sieve, and then the slurry i...

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Abstract

The invention discloses a low-cost high-strength dolomite earthen-ware green body, which is obtained by sintering a base material and an additive in a polybasic compound flux system, wherein the base material comprises 25-35wt% of elutriation slurry, 10-15wt% of black clay, 0-1wt% of bentonite, 5-6wt% of pyrophyllite, 12-25wt% of low-temperature sand, 3-8wt% of lithium porcelain stone, 5-12wt% of dolomite, 6-12wt% of black talc, 6-10wt% of limestone, 8-15wt% of diopside, 0-5wt% of Yongchun coarse-grained soil, and 0-5wt% of waste porcelain powder; and the additive is a nano organic silicon solution, and the weight percentage of the additive relative to the base material is 1-3%. According to the low-cost high-strength dolomite earthen-ware green body disclosed by the invention, the addition of a polybasic compound flux especially the addition of lithium and the nano organic silicon solution greatly reduces the firing temperature; moreover, as the nano organic silicon solution forms mullite crystals at low temperature and the lithium can easily form a high-strength glass phase during low-temperature firing, the strength of the green body is improved, and the green body can be easily degraded.

Description

technical field [0001] The invention relates to the technical field of ceramic products, in particular to a low-cost, high-strength dolomite body and a preparation method thereof. Background technique [0002] Baiyun pottery, also known as lightweight ceramics, is an environmentally friendly ceramic product recognized in the international market. Lightweight white cloud pottery can be painted with colored glazes, and can be made into various types of utensils, such as tea tableware, handicrafts, etc. It has a beautiful appearance and is favored by consumers. In particular, due to the high water absorption rate of Baiyun pottery, after the broken tiles are buried in the ground, they are easily degraded by moisture, and finally decompose into soil, while other hard porcelains do not have this function. Therefore, Baiyun pottery is taken from the underground soil. It becomes soil again, which belongs to environmental protection ceramic products. [0003] However, many manufac...

Claims

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Application Information

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IPC IPC(8): C04B33/132C04B33/13
CPCC04B33/13C04B33/1305C04B33/1321C04B33/1324C04B33/34C04B2235/96C04B2235/9661C04B2235/6583C04B2235/6567C04B2235/3208C04B2235/321C04B2235/3418C04B2235/3472C04B2235/3445C04B2235/3427C04B2235/3436Y02P40/60
Inventor 郭建洲陈欣方
Owner FUJIAN DEHUA FIVE CONTINENTS CERAMIC MFG CO LTD
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