Spodumene large-scale ceramic heat accumulator and preparation process thereof

A preparation process and a technology for a heat storage body, applied in the field of industrial energy saving and emission reduction equipment, can solve the problems of honeycomb ceramics such as wear resistance, low corrosion resistance, low mechanical strength, easy to block flue, etc. The effect of exchange efficiency, good corrosion resistance and less fouling

Inactive Publication Date: 2016-11-09
北京神雾电力科技有限公司 +1
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  • Summary
  • Abstract
  • Description
  • Claims
  • Application Information

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Problems solved by technology

[0005] The invention provides a spodumene-based large-scale ceramic regenerator and its preparation process, which are used to solve the problem of poor wear resistance and corrosion resistance, irregular shape, small size, short length and large aperture of the existing honeycomb ceramics. , wall thickness, easy to block the flue during use, large waste of heat energy, low heat exchange efficiency, low mechanical strength, short life and other technical problems

Method used

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  • Spodumene large-scale ceramic heat accumulator and preparation process thereof
  • Spodumene large-scale ceramic heat accumulator and preparation process thereof
  • Spodumene large-scale ceramic heat accumulator and preparation process thereof

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Embodiment 1

[0034]The large-scale ceramic regenerator produced has a square cross-section; its preparation process is: (1) dry mixing, firstly add the inorganic powder into the ball mill, dry mix for 4 hours, pass through a 100-mesh sieve, and the inorganic powder is made of the following weight Proportioned components: 15 parts of spodumene, 20 parts of kaolin, 8 parts of talc, 11 parts of potassium feldspar, 10 parts of alpha alumina, 3 parts of silicon nitride, 3 parts of silicon carbide, and 0.4 parts of beryllium oxide; ( 2) Add additives, the additive components are 2 parts by weight of methyl cellulose, 1 part by weight of hydroxyethyl cellulose, 1 part by weight of polyvinyl alcohol, 1 part by weight of polyethylene oxide, and 2 parts by weight of (polyethylene glycol 400); (3) Kneading. Add water and lubricating oil while stirring in the kneader. When kneading, after adding 400kg of material, add water in 5 times while stirring. After adding water, continue stirring for 5 minutes ...

Embodiment 2

[0037] The large-scale ceramic regenerator produced has a square cross-section; its preparation process is: (1) dry mixing, firstly add the inorganic powder into the ball mill, dry mix for 6 hours, pass through the 80-mesh sieve, and the inorganic powder is made of the following weight Proportioned components: 18 parts of spodumene, 19 parts of kaolin, 10 parts of talc, 13 parts of potassium feldspar, 8 parts of α-alumina, 3 parts of silicon nitride, 4 parts of silicon carbide, and 0.6 parts of beryllium oxide; ( 2) Adding additives, the additive components are 1 weight part of methyl cellulose, 2 weight parts of cyanoethyl cellulose, 1 weight part of polyvinyl alcohol, 1 weight part of polyethylene oxide, and 1 weight part of propylene glycol; (3) kneading, in Add water and lubricating oil while stirring in the kneader. When kneading, after adding 400kg of material, add water in 3 times while stirring. After adding the water, continue stirring for 2 minutes and add tung oil tw...

Embodiment 3

[0040] The large-scale ceramic regenerator produced has a rectangular cross-section; its preparation process is: (1) dry mixing, first add inorganic powder into the ball mill, add the required powder into the ball mill, dry mix for 3 hours, and pass through 80 mesh Screen, inorganic powder is composed of the following components by weight: 20 parts of spodumene, 22 parts of kaolin, 8 parts of talc, 12 parts of potassium feldspar, 10 parts of α-alumina, 3 parts of silicon nitride, silicon carbide 4 parts, 0.5 parts of beryllium oxide; (2) Add additives, the additive components are 3 parts by weight of cyanoethyl cellulose, 1 part by weight of polyvinyl alcohol, 1 part by weight of polyethylene oxide, and 2 parts by weight of (polyethylene glycol 400) (3) Kneading, add water and lubricating oil while stirring in the kneader. When kneading, after adding 400kg of material, stir for 15 minutes, then add half of the water first, continue stirring for 5 minutes, then add half of the r...

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Abstract

The invention provides a spodumene large-scale ceramic heat accumulator. The heat accumulator is characterized by being of a cylinder structure, wherein a plurality of ducts are arranged inside the heat accumulator and penetrate through the cylinder; the heat accumulator is formed by sintering inorganic powder and additives; and the inorganic powder is prepared from the following components in parts by weight: 10-22 parts of spodumene, 15-25 parts of kaolin, 5-11 parts of talc, 10-15 parts of potassium feldspar, 5-12 parts of alpha alumina, 2-4 parts of silicon nitride, 3-5 parts of silicon carbide and 0.1-0.3 part of beryllium oxide. The spodumene large-scale ceramic heat accumulator has excellent molding performance and shape-preserving performance. By adopting the formula and the production method, the heat accumulator ducts are dense, have thin wall thickness which is only 1mm, large section size which is more than 100cm<2>, high length-diameter ratio and a length of 1000mm, and have the characteristics of small resistance, little dust accumulation, block prevention, excellent dust removing performance and the like.

Description

technical field [0001] The invention belongs to the field of industrial energy-saving and emission-reduction equipment, and in particular relates to a spodumene large-scale ceramic regenerator and a preparation process thereof. Background technique [0002] Regenerative combustion technology has been widely used in industrial furnaces, and one of its technical cores is high-temperature heat storage honeycomb body. Regenerative honeycomb ceramics have replaced traditional regenerative balls and checker bricks due to their good heat storage and release performance, high temperature performance and thermal shock resistance. When in use, the high-temperature flue gas and low-temperature gas (such as air gas) pass through the regenerator alternately in opposite directions by reversing the direction, so that the regenerator continuously absorbs heat and releases heat, and acts as a heat exchange medium to achieve flue gas and air gas. purpose of heat exchange. The specific proce...

Claims

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Application Information

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Patent Type & Authority Applications(China)
IPC IPC(8): C04B38/00C04B35/19C04B33/13C04B35/622F28D20/00
CPCC04B33/13C04B35/10C04B35/14C04B35/185C04B35/19C04B35/443C04B35/478C04B35/48C04B35/5611C04B35/565C04B35/622C04B35/64C04B35/65C04B35/66C04B35/803C04B38/00C04B38/0009C04B38/0058C04B2235/32C04B2235/3201C04B2235/3205C04B2235/3208C04B2235/3215C04B2235/3217C04B2235/3224C04B2235/3229C04B2235/3244C04B2235/3251C04B2235/3284C04B2235/3418C04B2235/3427C04B2235/3463C04B2235/3472C04B2235/3481C04B2235/349C04B2235/36C04B2235/3826C04B2235/3843C04B2235/3847C04B2235/386C04B2235/3873C04B2235/404C04B2235/405C04B2235/425C04B2235/428C04B2235/448C04B2235/5204C04B2235/5216C04B2235/5236C04B2235/5248C04B2235/5276C04B2235/5454C04B2235/606C04B2235/656C04B2235/6562C04B2235/6567C04B2235/658C04B2235/95C04B2235/96C04B2235/9607C04B2235/9669C04B2235/9692F23D14/66F28D20/00F28D20/0056F28D2020/0017Y02E20/34Y02E60/14
Inventor 吴道君周守洪李军营姜朝兴杨晓波
Owner 北京神雾电力科技有限公司
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