CN101565319B - Recrystallized carborundum link plate used for preheater inner barrel of cement kiln and preparation method thereof - Google Patents
Recrystallized carborundum link plate used for preheater inner barrel of cement kiln and preparation method thereof Download PDFInfo
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- CN101565319B CN101565319B CN2009100651586A CN200910065158A CN101565319B CN 101565319 B CN101565319 B CN 101565319B CN 2009100651586 A CN2009100651586 A CN 2009100651586A CN 200910065158 A CN200910065158 A CN 200910065158A CN 101565319 B CN101565319 B CN 101565319B
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- China
- Prior art keywords
- carborundum
- link plate
- carborundum powder
- recrystallized
- thinner
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- 229910010271 silicon carbide Inorganic materials 0.000 title claims abstract description 47
- 239000004568 cement Substances 0.000 title claims abstract description 19
- 238000002360 preparation method Methods 0.000 title claims description 5
- 239000000843 powder Substances 0.000 claims abstract description 30
- 239000003795 chemical substances by application Substances 0.000 claims abstract description 17
- XLYOFNOQVPJJNP-UHFFFAOYSA-N water Substances O XLYOFNOQVPJJNP-UHFFFAOYSA-N 0.000 claims abstract description 17
- 238000000034 method Methods 0.000 claims abstract description 9
- 239000002994 raw material Substances 0.000 claims abstract description 6
- 239000000463 material Substances 0.000 claims abstract description 3
- 238000005245 sintering Methods 0.000 claims description 18
- HEMHJVSKTPXQMS-UHFFFAOYSA-M Sodium hydroxide Chemical group [OH-].[Na+] HEMHJVSKTPXQMS-UHFFFAOYSA-M 0.000 claims description 15
- 239000013543 active substance Substances 0.000 claims description 15
- 239000006185 dispersion Substances 0.000 claims description 15
- 238000001035 drying Methods 0.000 claims description 15
- XKRFYHLGVUSROY-UHFFFAOYSA-N Argon Chemical compound [Ar] XKRFYHLGVUSROY-UHFFFAOYSA-N 0.000 claims description 12
- 235000015895 biscuits Nutrition 0.000 claims description 12
- CDBYLPFSWZWCQE-UHFFFAOYSA-L Sodium Carbonate Chemical compound [Na+].[Na+].[O-]C([O-])=O CDBYLPFSWZWCQE-UHFFFAOYSA-L 0.000 claims description 8
- 235000019832 sodium triphosphate Nutrition 0.000 claims description 8
- 229910052786 argon Inorganic materials 0.000 claims description 6
- 230000015271 coagulation Effects 0.000 claims description 6
- 238000005345 coagulation Methods 0.000 claims description 6
- 239000007789 gas Substances 0.000 claims description 6
- 230000006698 induction Effects 0.000 claims description 6
- 239000011505 plaster Substances 0.000 claims description 6
- 238000001238 wet grinding Methods 0.000 claims description 6
- 101710194948 Protein phosphatase PhpP Proteins 0.000 claims description 4
- 239000000203 mixture Substances 0.000 claims description 4
- HWGNBUXHKFFFIH-UHFFFAOYSA-I pentasodium;[oxido(phosphonatooxy)phosphoryl] phosphate Chemical compound [Na+].[Na+].[Na+].[Na+].[Na+].[O-]P([O-])(=O)OP([O-])(=O)OP([O-])([O-])=O HWGNBUXHKFFFIH-UHFFFAOYSA-I 0.000 claims description 4
- 229910052708 sodium Inorganic materials 0.000 claims description 4
- 239000011734 sodium Substances 0.000 claims description 4
- 229910000029 sodium carbonate Inorganic materials 0.000 claims description 4
- 235000017550 sodium carbonate Nutrition 0.000 claims description 4
- 235000019982 sodium hexametaphosphate Nutrition 0.000 claims description 4
- GCLGEJMYGQKIIW-UHFFFAOYSA-H sodium hexametaphosphate Chemical compound [Na]OP1(=O)OP(=O)(O[Na])OP(=O)(O[Na])OP(=O)(O[Na])OP(=O)(O[Na])OP(=O)(O[Na])O1 GCLGEJMYGQKIIW-UHFFFAOYSA-H 0.000 claims description 4
- 229920005552 sodium lignosulfonate Polymers 0.000 claims description 4
- 239000001577 tetrasodium phosphonato phosphate Substances 0.000 claims description 4
- UNXRWKVEANCORM-UHFFFAOYSA-I triphosphate(5-) Chemical compound [O-]P([O-])(=O)OP([O-])(=O)OP([O-])([O-])=O UNXRWKVEANCORM-UHFFFAOYSA-I 0.000 claims description 4
- 238000002156 mixing Methods 0.000 claims description 3
- 238000004519 manufacturing process Methods 0.000 abstract description 11
- 239000002270 dispersing agent Substances 0.000 abstract 2
- 239000004094 surface-active agent Substances 0.000 abstract 2
- -1 diluter Substances 0.000 abstract 1
- 239000003595 mist Substances 0.000 description 4
- 238000009826 distribution Methods 0.000 description 3
- 238000005516 engineering process Methods 0.000 description 3
- 238000010438 heat treatment Methods 0.000 description 3
- 230000007812 deficiency Effects 0.000 description 2
- 230000003628 erosive effect Effects 0.000 description 2
- 230000003245 working effect Effects 0.000 description 2
- 229910000851 Alloy steel Inorganic materials 0.000 description 1
- 229910000831 Steel Inorganic materials 0.000 description 1
- 230000009286 beneficial effect Effects 0.000 description 1
- 239000000919 ceramic Substances 0.000 description 1
- 238000005260 corrosion Methods 0.000 description 1
- 239000010959 steel Substances 0.000 description 1
Landscapes
- Curing Cements, Concrete, And Artificial Stone (AREA)
Abstract
The invention discloses a recrystallized carborundum link plate used for a preheater inner barrel of a cement kiln. Materials for preparing the link plate consist of carborundum powder and additional water, diluter, surfactant and dispersant agent, wherein the carborundum powder has different grain size grades within a range of 1.6mm to 0.5mum, with a purity of higher than 99 percent; the ratios of dosage of the water, the diluter, the surfactant and the dispersant agent to the total weight of the carborundum powder respectively are 10-30 percent, 1-2 percent, 1-6 percent and 0.1-2 percent. The invention has the advantages of simple manufacturing technique, easiness for production and manufacturing, simple production raw materials and low cost. The recrystallized carborundum link plate manufactured has high strength, good high-temperature resistance, wear-resistance and corrosion-resistance and long service life.
Description
Technical field
The present invention relates to a kind of link plate of used for preheater inner barrel of cement kiln, a kind of specifically recrystallized carborundum link plate used for preheater inner barrel of cement kiln and preparation method.
Background technology
At present; Link plate in the cement kiln preheaters is the special alloy steel plate of heat-resistant antifriction mostly, in the hot environment that contains macro-corrosion property powder, uses; Its work-ing life is very short; And because this steel plate price is very high, increased the production cost of enterprise greatly, be unfavorable for the long-run development of enterprise.Though the ceramic hanging board that some cement kiln preheaters are used has also appearred, prolongation to a certain degree the work-ing life of link plate, reduced production cost.But its raw materials for production are comparatively complicated, the bad control of component proportions, and its wear-resisting erosion resistance is still not ideal enough, and product strength is not enough, and is fragile.
Summary of the invention
The objective of the invention is deficiency, provide a kind of heat-resisting, wear-resisting, anticorrosive, the recrystallized carborundum link plate used for preheater inner barrel of cement kiln of long service life and preparation method for solving the problems of the technologies described above.
The present invention is the deficiency that solves the problems of the technologies described above; The technical scheme that is adopted is: recrystallized carborundum link plate used for preheater inner barrel of cement kiln; Material therefor is made up of carborundum powder and the water that adds, thinner, tensio-active agent and dispersion agent; Wherein, carborundum powder has different grain size categories and purity greater than 99% in the 1.6mm-0.5 mu m range; The ratio that the add-on of water, thinner, tensio-active agent and dispersion agent accounts for the carborundum powder gross weight respectively is: water 10-30%, bases thinner 1-2%, tensio-active agent 1-6%, dispersion agent 0.1-2%.
Described bases thinner is sodium hydroxide or yellow soda ash.
Described tensio-active agent is one or both the mixing in Xylo-Mucine or the ZX-I.
Described dispersion agent is sodium lignosulfonate, Sodium hexametaphosphate 99 or tripoly phosphate sodium STPP.
The present invention, the method for manufacture of recrystallized carborundum link plate used for preheater inner barrel of cement kiln is:
Step 1, get purity greater than 99% and the carborundum powder that in the 1.6mm-0.5 mu m range, has a different grain size grade put into ball mill; Add the water of carborundum powder gross weight 10～30% and the thinner of 1-2% then; Mix, adjustment pH value >=6.5 add the tensio-active agent of carborundum powder gross weight 1-6% and the dispersion agent of 0.1-2% again; Started the ball mill wet-milling 2-10 hour, raw material is processed mud;
Step 2, the mud of processing is put into hold-up vessel, carry out the ultrasonic vacuum-treat that involves, remove bubble;
Step 3, the mud that above-mentioned steps two is handled well inject in the cut-and-dried plaster mould demoulding behind the coagulation forming;
Step 4, the biscuit after the demoulding is sent into dry kiln drying, the temperature of dry kiln is greater than 100 degree, and drying time was greater than 20 hours;
Step 5, the biscuit that drying is good are put into vacuum induction furnace, and closed furnace door vacuumizes; Inject argon gas, sintering, sintering temperature is 1800～2400 ℃; Time is 4-5 hour; Pressure remains on 0.1～0.25MPa, comes out of the stove behind the sintering, processes recrystallized carborundum link plate used for preheater inner barrel of cement kiln.
The invention has the beneficial effects as follows:
1, ME is simple, is easy to manufacture.
2, raw materials for production are simple, and cost is low.
3, the recrystallized carborundum link plate intensity processed is high, and is high temperature resistant, wear-resisting, erosion resistance is good, long service life.
Embodiment
Recrystallized carborundum link plate used for preheater inner barrel of cement kiln; Greater than 99% and in the 1.6mm-0.5 mu m range, have the carborundum powder of multiple different grain size grade and the water that adds, thinner, tensio-active agent and dispersion agent are formed, the ratio that the add-on of water, thinner, tensio-active agent and dispersion agent accounts for the carborundum powder gross weight respectively is: water 10-30%, bases thinner 1-2%, tensio-active agent 1-6%, dispersion agent 0.1-2% by purity.
Described bases thinner is sodium hydroxide or yellow soda ash.
Described tensio-active agent is one or both the mixing in Xylo-Mucine or the ZX-I, and add-on is the 1-3% of carborundum powder gross weight when selecting Xylo-Mucine for use; When selecting ZX-I for use, add-on is more than 4% of carborundum powder gross weight; When selecting the mixture of Xylo-Mucine and ZX-I for use, add-on is more than 2% of carborundum powder gross weight.
Described dispersion agent is sodium lignosulfonate, Sodium hexametaphosphate 99 or tripoly phosphate sodium STPP.
The present invention, the method for manufacture of recrystallized carborundum link plate used for preheater inner barrel of cement kiln is:
Step 1, get purity greater than 99% and the carborundum powder that in the 1.6mm-0.5 mu m range, has a different grain size grade put into ball mill; Add the water of carborundum powder gross weight 10～30%, the thinner of 1-2% then; Mix, adjustment pH value >=6.5 add the tensio-active agent of carborundum powder gross weight 1-6% and the dispersion agent of 0.1-2% again; Started the ball mill wet-milling 2-10 hour, raw material is processed mud;
Step 2, the mud of processing is put into hold-up vessel, carry out the ultrasonic vacuum-treat that involves, remove bubble;
Step 3, the mud that above-mentioned steps two is handled well inject in the cut-and-dried plaster mould demoulding behind the coagulation forming;
Step 4, the biscuit after the demoulding is sent into dry kiln drying, the temperature of dry kiln is greater than 100 degree, and drying time was greater than 20 hours;
Step 5, the biscuit that drying is good are put into vacuum induction furnace, and closed furnace door vacuumizes; Inject argon gas, sintering, sintering temperature is 1800～2400 ℃; Time is 4-5 hour; Pressure remains on 0.1～0.25MPa, comes out of the stove behind the sintering, processes recrystallized carborundum link plate used for preheater inner barrel of cement kiln.
Embodiment 1
Get purity and put into ball mill greater than 99% carborundum powder, its size-grade distribution is 1.6mm-0.6mm micro mist 40%, 0.6mm-0.1mm micro mist 25%, 100 μ m-5 μ m micro mists 10%, 5 μ m-1 μ m micro mists 25%; Add the water of carborundum powder gross weight 10% and 1% sodium hydroxide then, adjustment pH value >=6.5 add 1% Xylo-Mucine and 0.2% sodium lignosulfonate then; Start the ball mill wet-milling 2-10 hour, and processed mud, the mud of processing is put into hold-up vessel carry out the ultrasonic vacuum-treat that involves, remove bubble; The mud of handling well is injected in the plaster mould demoulding behind the coagulation forming; Biscuit after the demoulding is sent into dry kiln drying, and the temperature of dry kiln is greater than 100 degree, and drying time was greater than 20 hours; Dry good biscuit is put into vacuum induction furnace, and closed furnace door vacuumizes, and injects argon gas; Sintering, sintering temperature are 1800～2400 ℃, and the time is 4-5 hour; Pressure remains on 0.1～0.25MPa, comes out of the stove behind the sintering, processes cement kiln whirlwind cylinder pre-heating and uses recrystallized carborundum link plate.
Embodiment 2
Get purity and put into ball mill greater than 99% carborundum powder, its size-grade distribution is 60 μ m-40 μ m micro mists 15%, 40 μ m-20 μ m micro mists 25%, 20 μ m-10 μ m micro mists 20%, 10-5 μ m micro mist 15%, 5 μ m-1 μ m micro mists 25%; Add the water of carborundum powder gross weight 15% and 2% yellow soda ash then, adjustment pH value >=6.5 add 4% ZX-I and 0.1% Sodium hexametaphosphate 99 then; Started the ball mill wet-milling 2-10 hour, and processed mud, again mud is carried out ultrasonicly involving vacuum-treat and removing bubble; The mud of handling well is injected in the plaster mould demoulding behind the coagulation forming; Biscuit after the demoulding is sent into dry kiln drying, and the temperature of dry kiln is greater than 100 degree, and drying time was greater than 20 hours; Dry good biscuit is put into vacuum induction furnace, and closed furnace door vacuumizes, and injects argon gas; Sintering, sintering temperature are 1800～2400 ℃, and the time is 4-5 hour; Pressure remains on 0.1～0.25MPa, comes out of the stove behind the sintering, processes cement kiln whirlwind cylinder pre-heating and uses recrystallized carborundum link plate.
Embodiment 3
Get purity and put into ball mill greater than 99% carborundum powder, its size-grade distribution is 10 μ m-5 μ m micro mists 10%, 5 μ m-1 μ m micro mists 30%, 1 μ m-0.5 μ m micro mist 60%; Add the water of carborundum powder gross weight 20% and 1% sodium hydroxide then, adjustment pH value >=6.5 add 2% Xylo-Mucine and 0.1% tripoly phosphate sodium STPP then; Started the ball mill wet-milling 2-10 hour, and processed mud, again mud is carried out ultrasonicly involving vacuum-treat and removing bubble; The mud of handling well is injected in the plaster mould demoulding behind the coagulation forming; Biscuit after the demoulding is sent into dry kiln drying, and the temperature of dry kiln is greater than 100 degree, and drying time was greater than 20 hours; Dry good biscuit is put into vacuum induction furnace, and closed furnace door vacuumizes, and injects argon gas; Sintering, sintering temperature are 1800～2400 ℃, and the time is 4-5 hour; Pressure remains on 0.1～0.25MPa, comes out of the stove behind the sintering, processes cement kiln whirlwind cylinder pre-heating and uses recrystallized carborundum link plate.
Claims (1)
1. recrystallized carborundum link plate used for preheater inner barrel of cement kiln; It is characterized in that: material therefor is made up of carborundum powder and the water that adds, bases thinner, tensio-active agent and dispersion agent, and said carborundum powder is that grain size category and the purity of 1.6mm-0.5 μ m is greater than 99%; The ratio that the add-on of water, bases thinner, tensio-active agent and dispersion agent accounts for the carborundum powder gross weight respectively is: water 10-30%, bases thinner 1-2%, tensio-active agent 1-6%, dispersion agent 0.1-2%;
Described bases thinner is sodium hydroxide or yellow soda ash;
Described tensio-active agent is one or both the mixing in Xylo-Mucine or the ZX-I;
Described dispersion agent is sodium lignosulfonate, Sodium hexametaphosphate 99 or tripoly phosphate sodium STPP;
The preparation method is:
Step 1, get purity greater than 99% and the carborundum powder that in the 1.6mm-0.5 mu m range, has a different grain size grade put into ball mill; Add the water of carborundum powder gross weight 10～30% and the thinner of 1-2% then; Mix, adjustment pH value >=6.5 add the tensio-active agent of carborundum powder gross weight 1-6% and the dispersion agent of 0.1-2% again; Started the ball mill wet-milling 2-10 hour, raw material is processed mud;
Step 2, the mud of processing is put into hold-up vessel, mud is carried out ultrasonic involving vacuumize processing, remove bubble;
Step 3, the mud that above-mentioned steps two is handled well inject in the cut-and-dried plaster mould demoulding behind the coagulation forming;
Step 4, the biscuit after the demoulding is sent into dry kiln drying, the temperature of dry kiln is greater than 100 degree, and drying time was greater than 20 hours;
Step 5, the biscuit that drying is good are put into vacuum induction furnace, and closed furnace door vacuumizes; Inject argon gas, sintering, sintering temperature is 1800～2400 ℃; Time is 4-5 hour; Pressure remains on 0.1～0.25MPa, comes out of the stove behind the sintering, processes recrystallized carborundum link plate used for preheater inner barrel of cement kiln.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN2009100651586A CN101565319B (en) | 2009-06-10 | 2009-06-10 | Recrystallized carborundum link plate used for preheater inner barrel of cement kiln and preparation method thereof |
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| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN2009100651586A CN101565319B (en) | 2009-06-10 | 2009-06-10 | Recrystallized carborundum link plate used for preheater inner barrel of cement kiln and preparation method thereof |
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| Publication Number | Publication Date |
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| CN101565319A CN101565319A (en) | 2009-10-28 |
| CN101565319B true CN101565319B (en) | 2012-08-08 |
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| Application Number | Title | Priority Date | Filing Date |
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| CN2009100651586A Active CN101565319B (en) | 2009-06-10 | 2009-06-10 | Recrystallized carborundum link plate used for preheater inner barrel of cement kiln and preparation method thereof |
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Families Citing this family (2)
| Publication number | Priority date | Publication date | Assignee | Title |
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| CN102079636B (en) * | 2010-09-21 | 2013-08-07 | 长兴兴鹰新型耐火建材有限公司 | Preparation method of high-temperature wear-resistant valve plate special for tertiary air duct of rotary cement kiln |
| CN103553620A (en) * | 2013-10-16 | 2014-02-05 | 沈阳星光技术陶瓷有限公司 | Manufacture method of recrystallized silicon carbide connecting fastener |
Citations (3)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN1104193A (en) * | 1993-12-22 | 1995-06-28 | 原森 | Self-flow cement-less silicon carbide composite casting material |
| US5459112A (en) * | 1994-09-14 | 1995-10-17 | The Carborundum Company | Reaction-bonded silicon carbide refractory product |
| CN101100394A (en) * | 2006-07-07 | 2008-01-09 | 宜兴市泰科耐火材料有限公司 | Silicon carbide crusting resistant pouring material and preparation method thereof |
-
2009
- 2009-06-10 CN CN2009100651586A patent/CN101565319B/en active Active
Patent Citations (3)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN1104193A (en) * | 1993-12-22 | 1995-06-28 | 原森 | Self-flow cement-less silicon carbide composite casting material |
| US5459112A (en) * | 1994-09-14 | 1995-10-17 | The Carborundum Company | Reaction-bonded silicon carbide refractory product |
| CN101100394A (en) * | 2006-07-07 | 2008-01-09 | 宜兴市泰科耐火材料有限公司 | Silicon carbide crusting resistant pouring material and preparation method thereof |
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| CN101565319A (en) | 2009-10-28 |
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Owner name: LUOYANG PENGFEI WEAR-RESISTANT MATERIALS CO., LTD. Free format text: FORMER OWNER: JIA JIANGUANG Effective date: 20131011 |
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Effective date of registration: 20131011 Address after: 471200 Luoyang Industrial Zone, Ruyang Province, East Ring Road, No. 3, No. Patentee after: LUOYANG PENGFEI WEAR-RESISTANT MATERIALS LIMITED BY SHARE LTD. Address before: 471013 Henan city in Luoyang Province town of Luolong District of Luoyang temple white hat Guo Village North Pengfei refractory wear-resistant materials Co. Patentee before: Jia Jianguang |