Method for preparing honeycomb ceramic heat accumulator by industrial ceramic waste
A technology of honeycomb ceramics and ceramic waste, which is applied in heat storage equipment, indirect heat exchangers, heat exchanger types, etc., can solve the problem of high price, achieve excellent refractoriness, meet strict requirements, and excellent load softening index.
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Embodiment 1
[0038]Use discarded alumina sticks as raw materials, after grinding and homogenizing to a fineness of less than 300 mesh, its chemical composition is: Al 2 o 3 Content 92.35%, SiO 2 Content 6.39%, Fe 2 o 3 Content 0.49%, TiO 2 The content is 1.36%, and the weight percentage content of each component of the raw material is calculated as:
[0039] Alumina stick waste 45%, sintered mullite 32%, Shuozhou soil 23%.
[0040] (1) Weigh each component according to the above weight ratio relationship;
[0041] (2) Grinding and homogenizing the above-mentioned aluminum oxide stick waste until the fineness is less than 300 mesh;
[0042] (3) Fully mix the obtained alumina stick waste powder, sintered mullite powder and Shuozhou soil powder;
[0043] (4) Add 3% hydroxymethyl cellulose with a weight of 3% of the total weight of the mixed powder as a molding aid, 3% soybean oil as a lubricant and 25% water to the above mixed powder, and then mix, knead, knead Mud and stale process t...
Embodiment 2
[0049] Use discarded alumina kiln furniture as raw material, after grinding and homogenizing to a fineness of less than 300 mesh, its chemical composition is: Al 2 o 3 Content 90.01%, SiO 2 Content 8.25%, Fe 2 o 3 Content 0.65%, TiO 2 The content is 1.52%, and the weight percentage content of each component of the raw material is calculated as:
[0050] Alumina kiln furniture waste 48%, sintered mullite 30%, Shuozhou soil 22%.
[0051] (1) Weigh each component according to the above weight ratio relationship;
[0052] (2) Grinding and homogenizing the above alumina kiln furniture waste until the fineness is less than 300 mesh;
[0053] (3) Fully mix the obtained alumina kiln furniture waste powder, sintered mullite powder and Shuozhou soil powder;
[0054] (4) Add 3% hydroxymethyl cellulose with a weight of 3% of the total weight of the mixed powder as a molding aid, 3% soybean oil as a lubricant and 25% water to the above mixed powder, and then mix, knead, knead Mud a...
Embodiment 3
[0060] The mixture of recovered various alumina industrial ceramic wastes is selected as raw material, after grinding and homogenization to a fineness of less than 300 mesh, its chemical composition is: Al 2 o 3 Content 88.01%, SiO 2 Content 10.23%, Fe 2 o 3 Content 0.92%, TiO 2 The content is 2.47%, and the weight percentage content of each component of the raw material is calculated as:
[0061] Alumina porcelain mixed waste 50%, sintered mullite 30%, Shuozhou soil 20%.
[0062] (1) Weigh each component according to the above weight ratio relationship;
[0063] (2) Grinding and homogenizing the above-mentioned alumina porcelain mixed waste until the fineness is less than 300 mesh;
[0064] (3) Fully mix the obtained alumina porcelain mixed waste powder, sintered mullite powder and Shuozhou soil powder;
[0065] (4) Add 3% hydroxymethyl cellulose with a weight of 3% of the total weight of the mixed powder as a molding aid, 3% soybean oil as a lubricant and 25% water to...
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