CN101704675A - Method for preparing internal barrel of ceramic pre-heater - Google Patents
Method for preparing internal barrel of ceramic pre-heater Download PDFInfo
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- CN101704675A CN101704675A CN200910015019A CN200910015019A CN101704675A CN 101704675 A CN101704675 A CN 101704675A CN 200910015019 A CN200910015019 A CN 200910015019A CN 200910015019 A CN200910015019 A CN 200910015019A CN 101704675 A CN101704675 A CN 101704675A
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- preparation
- internal barrel
- moulding
- ceramic pre
- heater
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Abstract
The invention relates to a method for preparing internal barrel of ceramic pre-heater, comprising the steps of preparing materials, molding and sintering; and the method is characterized in that the raw materials comprises the following components by weight percent: 50-90% of SiC, 0-15% of metal silicon, 0-15% of other constituent, and 0-15% of SCT composite additive, wherein the other constituent is one or two or combinations of the following elements at an optional ratio: methylcellulose, carboxymethyl cellulose, polyvinyl alcohol, dextrin, sulfurous acid waste pulp, aluminum sulfate, poly-per-aluminum chloride, sodium polyphosphate, sodium pyrophosphate, sodium silicate, aluminum solution, aluminum phosphate, zirconium oxychloride and sodium tripolyphosphate. The molding is realized by means of slip casting, vibration pouring, isostatic pressing, extruding and pressing. The method can produce large abrasion and erosion resistant ceramic hanging plate with high density, large intensity and good thermal vibration.
Description
Technical field
The present invention relates to a kind of preparation method of internal barrel of ceramic pre-heater, be heatproof inorganic product technical field.
Background technology:
In the preheater before the cement rotary kiln inner core is housed, assemble by the high temperature steel link plate, because operating environment is abominable: contain the multiple objectionable constituent of overflowing behind scorching hot raw material and the coal dust firing in the high-temperature gas, the burn into inner core that wearing and tearing ceaselessly, raw material and elevated temperature heat gas mixed effect are reduced, the time of heat exchange shortens, the pre-heat effect variation, thermo-efficiency reduces, final influence the thermal parameter of kiln and reduce the output of grog, even use wear resistance better heat-resisting steel to do, working life is still shorter.
Summary of the invention
The object of the present invention is to provide a kind of preparation method of internal barrel of ceramic pre-heater, can production large size wear-and corrosion-resistant ceramic hanging board, the density height, intensity is big, and thermal shock resistance is good.
Internal barrel of ceramic pre-heater is made up of parts such as drop in beam, link plate, joint bolts, and structure had been declared china national practical new-type patent, and preparation method of the present invention mainly refers to the preparation method of drop in beam and link plate.
The preparation method of internal barrel of ceramic pre-heater of the present invention comprises batching, moulding and burns till that its ingredients by weight percentage composition is: SiC 50-90%, Pure Silicon Metal 0-15%, other 0-15% and SCT composite additive 0-15%.
Can be SiC 0-80%, Si
3N
40-30%, Al
2O
30-20%, SiO
20-20%, MgO 0-10%, other 0-15% and SCT composite additive 0-15%.
Can be Si
3N
420-90%, other 10-80% and SCT composite additive 0-15%.
Can also be Al
2O
335-78%, SiO
220-60%, MgO 0-10%, other 0-15% and SCT composite additive 0-15%.
Wherein, other is a kind of, two kinds or several combinations with arbitrary proportion arbitrarily in methylcellulose gum, carboxymethyl cellulose, polyvinyl alcohol, dextrin, lignosulfite, Tai-Ace S 150, poly-perchlorizing aluminium, sodium polyphosphate, trisodium phosphate, water glass, aluminum solutions, aluminum phosphate, zirconium oxychloride and the tripoly phosphate sodium STPP.
Raw materials used all have a commercially available prod, all can directly buy according to demand.
Methods such as filling forming method, vibration casting forming method, isostatic pressing method, extruding forming method and briquetting process are adopted in moulding.
Firing temperature is 1800-2100 ℃, and soaking time is 2.5-5 hour.
The preparation method of internal barrel of ceramic pre-heater of the present invention can production large size wear-and corrosion-resistant ceramic hanging board, the density height, and intensity is big, and thermal shock resistance is good.
Description of drawings
Fig. 1, process flow diagram of the present invention.
Embodiment
The invention will be further described below in conjunction with embodiment.
Embodiment 1
The preparation method of internal barrel of ceramic pre-heater of the present invention comprises batching, moulding and burns till that its ingredients by weight consists of: 82 parts in silicon carbide (SiC), 12 parts of Pure Silicon Metals, 2 parts of aluminum phosphates, 4 parts of SCT composite additives are combined together the raw material of choosing, make slurry, inject the drop in beam mould, moulding will be burnt till in the 2000 ℃ of high temperature kilns of packing into after the drop in beam demoulding drying after the moulding, firing time generally after kiln temperature rise to 2000 ℃, keeps the kiln temperature can burn till in 3 hours.
Embodiment 2
The preparation method of internal barrel of ceramic pre-heater of the present invention comprises batching, moulding and burns till that its ingredients by weight percentage composition is: SiC 25%, Si
3N
420%, Al
2O
310%, SiO
220%, MgO 10%, methylcellulose gum 15%, the raw material of choosing is combined together, make slurry, isostatic pressing after the spraying drying, to burn till in the 2100 ℃ of high temperature kilns of packing into after the drop in beam demoulding drying after the moulding, firing time generally after kiln temperature rise to 2100 ℃, keeps the kiln temperature can burn till in 2.5 hours.
Embodiment 3
The preparation method of internal barrel of ceramic pre-heater of the present invention comprises batching, moulding and burns till that its ingredients by weight percentage composition is: Si
3N
440%, carboxymethyl cellulose 50% and SCT composite additive 10%, the raw material of choosing is combined together, make slurry, the vibration casting moulding, to burn till in the 1900 ℃ of high temperature kilns of packing into after the link plate demoulding drying after the moulding, firing time generally after kiln temperature rise to 1900 ℃, keeps the kiln temperature can burn till in 3 hours.
Embodiment 4
The preparation method of internal barrel of ceramic pre-heater of the present invention comprises batching, moulding and burns till that its ingredients by weight percentage composition is: Al
2O
350%, SiO
240%, MgO 6% and Tai-Ace S 150 4% are combined together the raw material of choosing, and make slurry, inject the drop in beam mould, moulding will be burnt till in the 2000 ℃ of high temperature kilns of packing into after the drop in beam demoulding drying after the moulding, firing time generally after kiln temperature rise to 2000 ℃, keeps the kiln temperature can burn till in 4 hours.
Embodiment 5
The preparation method of internal barrel of ceramic pre-heater of the present invention, comprise batching, moulding and burn till, its ingredients by weight percentage composition is: SiC 62%, Pure Silicon Metal 8%, trisodium phosphate 15% and SCT composite additive 15%, the raw material of choosing is combined together, make slurry, spraying oven dry back isostatic pressing will burn till in the high temperature kiln of packing into after the link plate demoulding drying after the moulding, firing time generally after kiln temperature rise to 1850 ℃, keeps the kiln temperature can burn till in 3 hours.
Embodiment 6
The preparation method of internal barrel of ceramic pre-heater of the present invention comprises batching, moulding and burns till that its ingredients by weight percentage composition is: SiC 30%, Si
3N
425%, Al
2O
315%, SiO
28%, MgO 7%, polyvinyl alcohol 5% and SCT composite additive 10%.The raw material of choosing is combined together, makes slurry, spraying oven dry back isostatic pressing will burn till in the 2000 ℃ of high temperature kilns of packing into after the link plate demoulding drying after the moulding, and the firing time generally after kiln temperature rise to 2000 ℃, keeps the kiln temperature can burn till in 3 hours.
Embodiment 7
The preparation method of internal barrel of ceramic pre-heater of the present invention comprises batching, moulding and burns till that its ingredients by weight percentage composition is: Si
3N
445%, polyvinyl alcohol 45% and SCT composite additive 10%, the raw material of choosing is combined together, make slurry, spraying oven dry back compression moulding, to burn till in the high temperature kiln of packing into after the drop in beam demoulding drying after the moulding, firing time generally after kiln temperature rise to 1950 ℃, keeps the kiln temperature can burn till in 3.5 hours.
Embodiment 8
The preparation method of internal barrel of ceramic pre-heater of the present invention comprises batching, moulding and burns till that its ingredients by weight percentage composition is: Al
2O
365%, SiO
225%, MgO 4% and SCT composite additive 6%, the raw material of choosing is combined together, and extrusion moulding behind the system mud will be burnt till in the high temperature kiln of packing into after the drop in beam demoulding drying after the moulding, firing time generally after kiln temperature rise to 1900 ℃, keeps the kiln temperature can burn till in 4.5 hours.
Claims (10)
1. the preparation method of an internal barrel of ceramic pre-heater comprises batching, moulding and burns till, and it is characterized in that its ingredients by weight percentage composition is: SiC 50-90%, Pure Silicon Metal 0-15%, other 0-15% and SCT composite additive 0-15%.
2. the preparation method of an internal barrel of ceramic pre-heater comprises batching, moulding and burns till, and it is characterized in that its ingredients by weight percentage composition is: SiC 0-80%, Si
3N
40-30%, Al
2O
30-20%, SiO
20-20%, MgO 0-10%, other 0-15% and SCT composite additive 0-15%.
3. the preparation method of an internal barrel of ceramic pre-heater comprises batching, moulding and burns till, and it is characterized in that its ingredients by weight percentage composition is: Si
3N
420-90%, other 10-80% and SCT composite additive 0-15%.
4. the preparation method of an internal barrel of ceramic pre-heater comprises batching, moulding and burns till, and it is characterized in that its ingredients by weight percentage composition is: Al
2O
335-78%, SiO
220-60%, MgO 0-10%, other 0-15% and SCT composite additive 0-15%.
5. according to the preparation method of claim 1,2,3 or 4 described internal barrel of ceramic pre-heater, it is characterized in that other is a kind of, two kinds or several combinations with arbitrary proportion arbitrarily in methylcellulose gum, carboxymethyl cellulose, polyvinyl alcohol, dextrin, lignosulfite, Tai-Ace S 150, poly-perchlorizing aluminium, sodium polyphosphate, trisodium phosphate, water glass, aluminum solutions, aluminum phosphate, zirconium oxychloride and the tripoly phosphate sodium STPP.
6. the preparation method of internal barrel of ceramic pre-heater according to claim 5 is characterized in that moulding employing filling forming method.
7. the preparation method of internal barrel of ceramic pre-heater according to claim 5 is characterized in that moulding employing vibration casting forming method.
8. the preparation method of internal barrel of ceramic pre-heater according to claim 5 is characterized in that moulding employing isostatic pressing method.
9. the preparation method of internal barrel of ceramic pre-heater according to claim 5 is characterized in that moulding employing extruding forming method.
10. the preparation method of internal barrel of ceramic pre-heater according to claim 5 is characterized in that moulding employing briquetting process.
Priority Applications (5)
Application Number | Priority Date | Filing Date | Title |
---|---|---|---|
CN200910015019A CN101704675A (en) | 2009-04-30 | 2009-04-30 | Method for preparing internal barrel of ceramic pre-heater |
CN 201010158703 CN101805189B (en) | 2009-04-30 | 2010-04-29 | Ceramic inner barrel of preheater for cement kiln |
CN 201010159714 CN101838152B (en) | 2009-04-30 | 2010-04-29 | Ceramic internal cylinder for dry method cement rotary cement kiln |
CN2010101587058A CN101798236B (en) | 2009-04-30 | 2010-04-29 | Ceramic inner cylinder for preheater of dry method cement rotary kiln |
CN2010101597134A CN101838151B (en) | 2009-04-30 | 2010-04-29 | Ceramic inner barrel of preheater for cement kiln |
Applications Claiming Priority (1)
Application Number | Priority Date | Filing Date | Title |
---|---|---|---|
CN200910015019A CN101704675A (en) | 2009-04-30 | 2009-04-30 | Method for preparing internal barrel of ceramic pre-heater |
Publications (1)
Publication Number | Publication Date |
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CN101704675A true CN101704675A (en) | 2010-05-12 |
Family
ID=42374940
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CN200910015019A Pending CN101704675A (en) | 2009-04-30 | 2009-04-30 | Method for preparing internal barrel of ceramic pre-heater |
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CN (1) | CN101704675A (en) |
Cited By (1)
Publication number | Priority date | Publication date | Assignee | Title |
---|---|---|---|---|
CN109320219B (en) * | 2018-11-13 | 2021-12-28 | 辽宁中镁高温材料有限公司 | High-performance aluminum-chromium refractory material and manufacturing method and application thereof |
-
2009
- 2009-04-30 CN CN200910015019A patent/CN101704675A/en active Pending
Cited By (1)
Publication number | Priority date | Publication date | Assignee | Title |
---|---|---|---|---|
CN109320219B (en) * | 2018-11-13 | 2021-12-28 | 辽宁中镁高温材料有限公司 | High-performance aluminum-chromium refractory material and manufacturing method and application thereof |
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Open date: 20100512 |