CN102391002A - Magnesia-alumina spinel skinning-resistant non-amorphous refractory material for cement kiln as well as preparation method and application thereof - Google Patents

Magnesia-alumina spinel skinning-resistant non-amorphous refractory material for cement kiln as well as preparation method and application thereof Download PDF

Info

Publication number
CN102391002A
CN102391002A CN2011102128078A CN201110212807A CN102391002A CN 102391002 A CN102391002 A CN 102391002A CN 2011102128078 A CN2011102128078 A CN 2011102128078A CN 201110212807 A CN201110212807 A CN 201110212807A CN 102391002 A CN102391002 A CN 102391002A
Authority
CN
China
Prior art keywords
magnesium
parts
aluminium spinel
aluminium
spinel
Prior art date
Legal status (The legal status is an assumption and is not a legal conclusion. Google has not performed a legal analysis and makes no representation as to the accuracy of the status listed.)
Granted
Application number
CN2011102128078A
Other languages
Chinese (zh)
Other versions
CN102391002B (en
Inventor
汪澜
王杰曾
袁林
杨圣玮
于龙泉
王俊涛
陈雪峰
Current Assignee (The listed assignees may be inaccurate. Google has not performed a legal analysis and makes no representation or warranty as to the accuracy of the list.)
RUITAI TECHNOLOGY Co Ltd
China Building Materials Academy CBMA
Original Assignee
RUITAI TECHNOLOGY Co Ltd
China Building Materials Academy CBMA
Priority date (The priority date is an assumption and is not a legal conclusion. Google has not performed a legal analysis and makes no representation as to the accuracy of the date listed.)
Filing date
Publication date
Application filed by RUITAI TECHNOLOGY Co Ltd, China Building Materials Academy CBMA filed Critical RUITAI TECHNOLOGY Co Ltd
Priority to CN201110212807.8A priority Critical patent/CN102391002B/en
Publication of CN102391002A publication Critical patent/CN102391002A/en
Application granted granted Critical
Publication of CN102391002B publication Critical patent/CN102391002B/en
Active legal-status Critical Current
Anticipated expiration legal-status Critical

Links

Abstract

The invention discloses a magnesia-alumina spinel skinning-resistant non-amorphous refractory material for a cement kiln as well as a preparation method and application thereof. The refractory material comprises the following raw materials: 74-88 parts by weight of magnesia-alumina spinel which has the grain size below 5mm and is in rough-grade fit, 9-17 parts by weight of cordierite which has the grain size below 3mm and is in fine fit, 1-2 parts by weight of siliceous dust, 1-2 parts by weight of silica sol, 0-6 parts by weight of silicon nitride powder, 2-6 parts by weight of organic binder, and 0.05-0.15 parts by weight of high-efficiency water reducing agent. The refractory material is a duplex structure with the magnesia-alumina spinel as a main crystalline phase and the cordierite as a paracrystalline phase, so that the refractory material has a certain high-temperature resistance and excellent skinning-resistant and thermal-shock resistances, can be matched with a magnesia-alumina spinel skinning-resistant amorphous refractory material to serve as skinning-resistant non-amorphous refractory materials for a novel cement dry-process rotary kiln and a cement pre-sintering production process, and has a wide application prospect.

Description

A kind of cement kiln is with magnesium-aluminium spinel resistive connection skin amorphous refractory and preparation method thereof and application
Technical field
The invention belongs to the cement kiln refractory in the building material field; Particularly relate to a kind of have certain high temperature resistant and excellent resistive connection skin, thermal shock resistance, can be used as magnesium-aluminium spinel resistive connection skin amorphous refractory and preparation method thereof and application that the short flow process pre-burning of cement dry method rotary kiln and energy-saving cement becomes kiln.
Background technology
Along with the progress of cement industry, the new type nonaqueous cement rotary kiln at home and abroad is used widely.Each manufacture of cement producer is according to the national policy of legislations of environmental protection and energy-saving and emission-reduction, and solid waste such as increasing use building waste, domestic refuse, sewage sludge, industrial residue are as raw material and the fuel of producing cement clinker.Thereby various impurity in the cement rotary kiln; Content like heavy metal ion, sulphur, chlorine, alkali rolls up; Through the circulation enrichment of preheater, decomposing furnace, clinkering zone in cement rotary kiln, very easily form skinning and stop up at kiln tail system, influence the normal operation of cement rotary kiln.
In order to improve cement output, reduce the net effect that burns till hear rate and grinding pow consumption, improves clinker quality, China Building Material Scientific Research General Institute has been invented a kind of cement presintering production method and system's (publication number: CN101139175) thereof in August, 2007.It is particularly important to promoting this Technology to solve the skinning problem, because when kiln tail system temperature during up to 900-1200 ℃, the skinning of cement slurry, blockage problem become more serious.A kind of solution is to purge through air bubble, and a kind of in addition solution is to use resistive connection skin refractory materials, makes it not react with sulphur chlor-alkali and cement slurry component.Therefore, the composite refractory material with this complete sets of Techniques will have certain resistance to elevated temperatures and excellent resistive connection skin, thermal shock resistance.
At present, the temperature of new type nonaqueous cement rotary kiln tail system is 800-1000 ℃, and the resistive connection skin refractory materials of use has refractory materialss such as high alumina matter, carbonization is siliceous.Because material is an alkaline environment in the rotary system, select the refractory materials of basic refractory or neutral meta-alkalescence.The silicon carbide refractory material belongs to amphoteric refractory, and thermal shock resistance is fine, but in the cement presintering production technique, when rising to 1200 ℃ when kiln end temperature, its resistance of oxidation descends greatly, the SiO of material surface 2Film begins liquid phase and binding material to occur with CaO reaction, and anti-scaling property lost efficacy.Therefore, raise with kiln end temperature, high alumina matter, silicon carbide refractory material will be substituted by other non-chromium alkaline refractory materials.
Magnesia-alumina spinel refractory has excellent resistive connection skin, resistance to elevated temperatures, and hangs down the erosion of basicity kiln material in can resisting well, and its shortcoming is that thermal shock resistance is relatively poor.Ruitai Technology Co., Ltd and China Building Material Scientific Research General Institute have been invented antiskinning castable for magnesium aluminate spinel for cement kiln (publication number: CN101412630) in October, 2008; Cement kiln has been invented with crusting resistant pouring material (publication number: CN 101987793A), effectively supported the development of cement presintering production technique in October, 2010 by Anhui Ruitai New Material Technology Co., Ltd.But 1200 ℃ of high temperature anti-scaling properties of these two kinds of crusting resistant pouring materials are bad, and reason is that these two kinds of crusting resistant pouring materials all need use silicon ash and pure calcium aluminate cement as wedding agent.The SiO that the CaO that cement is brought into, silicon ash are brought into 2More than 1200 ℃ with the kiln material in the alkali of circulation enrichment react and form eutectic mixture and produce liquid phase, binding material has had a strong impact on the anti-scaling property of material.
Summary of the invention
The purpose of this invention is to provide a kind of cement kiln with magnesium-aluminium spinel resistive connection skin amorphous refractory.
For solving the problems of the technologies described above, the present invention takes following technical scheme:
A kind of cement kiln is with magnesium-aluminium spinel resistive connection skin amorphous refractory; Its raw material comprises the magnesium-aluminium spinel 74-88 weight part that particle diameter cooperates in the following level Four of 5mm, the trichroite 9-17 weight part that particle diameter cooperates in the following two-stage of 3mm, silicon ash 1-2 weight part; Silicon sol 1-2 weight part; Silicon nitride powder 0-6 weight part, organic bond 2-6 weight part, high efficiency water reducing agent 0.05-0.15 weight part.
This cement kiln is with magnesium-aluminium spinel resistive connection skin amorphous refractory, and its composition of raw materials comprises following components by weight portion:
Its composition of raw materials comprises following components by weight portion: 1-5mm magnesium-aluminium spinel 46-56 part, and 0.088-1mm magnesium-aluminium spinel 10-14 part, 0.02-0.088mm magnesium-aluminium spinel 6-15 part is less than 0.02mm magnesium-aluminium spinel ultrafine powder 9-12 part; 0.088-3mm (referring to more than or equal to 0.088mm less than 3mm) trichroite 0-14 part is less than 0.088mm trichroite 0-9 part; Silicon ash 1-2 part, silicon sol 1-2 part, silicon nitride powder 0-6 part, organic bond 2-6 part, high efficiency water reducing agent 0.05-0.15 part.
In above-mentioned prescription, said magnesium-aluminium spinel is commercially available fireproof magnesia alumina spinel materials; Said magnesium-aluminium spinel ultrafine powder is that commercially available magnesium aluminate spinel refractory raw material sieves 95% magnesium-aluminium spinel ultrafine powder down through the 0.02mm that obtains after processing.Said trichroite is commercially available cordierite refractory material; Said silicon ash is commercially available silicon ash products; Said silicon sol is commercially available silicon sol product; Said silicon nitride powder is commercially available silicon nitride powder; Said organic bond can be selected from the combination of any one or two kinds of commercial polyethylene alcoholic solution, ROHM product emulsion; Said high efficiency water reducing agent can be selected from any one or a few the combination in sulphonate series concrete high-efficiency water reducing agent, polycarboxylic acid series high efficiency water reducing agent, tripoly phosphate sodium STPP high efficiency water reducing agent, Sodium hexametaphosphate 99 high efficiency water reducing agent and the ZX-I high efficiency water reducing agent of sulphonate series concrete high-efficiency water reducing agent, condensation trimeric cyanamide of commercially available condensation naphthaldehyde.
Cement kiln provided by the present invention can may further comprise the steps with the preparation method of magnesium-aluminium spinel resistive connection skin amorphous refractory:
1) takes by weighing raw material by above-mentioned prescription;
2) with raw materials mix, make base substrate through batching, mixing, ageing mixture, shaping, again after 500-1200 ℃ of thermal treatment, obtain cement kiln after the drying with magnesium-aluminium spinel resistive connection skin amorphous refractory.
Innovative point of the present invention is:
1) this refractory materials employing magnesium-aluminium spinel is a paracrystalline phase as principal crystalline phase, trichroite; Under the normal temperature with silicon sol as wedding agent; Produce intensity through coalescence between silicon sol and the fire resisting material particle; Add organic bond under the situation of insufficient strength and come bonded particulate to produce intensity, avoid the use of pure calcium aluminate cement and bring eutectic material CaO into;
2) magnesium-aluminium spinel ultrafine powder (MgOAl under the temperature (700-1000 ℃) in 2O 3) SiO in beginning and silicon ash, the silicon sol 2Reaction generates trichroite (2MgO2Al 2O 35SiO 2) produce the pottery combination, medium temperature intensity is provided;
3) MgOAl under the high temperature (1000-1300 ℃) 2O 3With SiO 2Reaction rate accelerates, generate more trichroite (2MgO2Al 2O 35SiO 2), forming with the magnesium-aluminium spinel is that principal crystalline phase, trichroite are the heterogeneous structure of paracrystalline phase.Wherein, the chemicalstability of magnesium-aluminium spinel is fine, with cement kiln material and sulphur chlor-alkali chemical reaction does not take place, makes the material of being developed have excellent resistive connection skin property; Trichroite has very low thermal expansivity, makes the material of being developed have excellent heat-shock resistance;
4) through further adding little trichroite and the good silicon nitride of thermal conductivity of thermal expansivity, reduce thermal stresses better, improve the heat-shock resistance of material.
Below in conjunction with specific embodiment the present invention is explained further details.
Embodiment
For overcoming the shortcoming of existing cement kiln refractory; Solve in the market cement kiln refractory non-refractory (1000-1300 ℃), skinning, the relatively poor difficult problem of thermal shock resistance easily, the invention provides a kind of cement kiln with magnesium-aluminium spinel resistive connection skin amorphous refractory with certain high thermal resistance, excellent resistive connection skin property, heat-shock resistance.
Cement kiln provided by the present invention is with magnesium-aluminium spinel resistive connection skin amorphous refractory; The regular position that is used for the cement kiln tail system; Become the setting product by each raw material through batching, mixing, ageing mixture, after being shaped, firing, product specification is according to the size design of kiln.Its raw material comprises the magnesium-aluminium spinel 74-88 weight part that particle diameter cooperates in the following level Four of 5mm; The trichroite 9-17 weight part that particle diameter cooperates in the following two-stage of 3mm; Silicon ash 1-2 weight part, silicon sol 1-2 part, silicon nitride powder 0-6 weight part; Organic bond 2-6 weight part, high efficiency water reducing agent 0.05-0.15 weight part.
Concrete, its composition of raw materials comprises following components by weight portion:
1-5mm (finger more than or equal to 1mm) magnesium-aluminium spinel 46-56 part less than 5mm; (0.088-1mm finger more than or equal to 0.088mm) magnesium-aluminium spinel 10-14 part less than 1mm; 0.02-0.088mm (referring to more than or equal to 0.01mm less than 0.088mm) magnesium-aluminium spinel 6-15 part is less than 0.02mm magnesium-aluminium spinel ultrafine powder 9-12 part; 0.088-3mm (referring to more than or equal to 0.088mm less than 3mm) trichroite 0-14 part is less than 0.088mm trichroite 0-9 part; Silicon ash 1-2 part, silicon sol 1-2 part, silicon nitride powder 0-6 part, organic bond 2-6 part, high efficiency water reducing agent 0.05-0.15 part.Wherein, trichroite and silicon nitride are not 0 simultaneously.
In the statement of size scope of the present invention, lower value contains, and higher limit does not contain.The similar statement implication of rest part is identical in the literary composition.
Perhaps, its composition of raw materials comprises following components by weight portion:
1-5mm magnesium-aluminium spinel 49-56 part, 0.088-1mm magnesium-aluminium spinel 12-14 part, 0.02-0.088mm magnesium-aluminium spinel 9-15 part; Less than 0.02mm magnesium-aluminium spinel ultrafine powder 9-12 part, 0.088-3mm trichroite 0-9 part is less than 0.088mm trichroite 0-9 part; Silicon ash 1-2 part; Silicon sol 1-2 part, organic bond 4-6 part, 0.15 part of high efficiency water reducing agent.Wherein, the trichroite of two grades is not 0 simultaneously.
In the present invention, said magnesium-aluminium spinel is commercially available fireproof magnesia alumina spinel materials.Adopt the magnesium-aluminium spinel of different-grain diameter to be used, make and make closestpacking between the material granule, improve the alkali resistant aggressiveness of material.
Said magnesium-aluminium spinel ultrafine powder is that commercially available magnesium aluminate spinel refractory raw material sieves 95% magnesium-aluminium spinel ultrafine powder down through the 0.02mm that obtains after processing.Adopt the magnesium-aluminium spinel ultrafine powder under middle temperature with silicon ash, silicon sol in SiO 2Reaction generates trichroite (zeopan 2MgO2Al 2O 35SiO 2), produce pottery and combine, improve the medium temperature intensity of material.
Said trichroite is commercially available cordierite refractory material (natural or artificial).Adopt the trichroite of different-grain diameter, adopt the trichroite of different-grain diameter, better reduce thermal stresses, improve the heat-shock resistance of material.
Said silicon ash is commercially available silicon ash products.At high temperature generate trichroite, produce pottery and combine, the hot strength of material is provided with the magnesium-aluminium spinel reaction.
Said silicon sol is commercially available silicon sol product.Silicon sol is a kind of air-setting wedding agent, and coalescence at normal temperatures and between the fire resisting material particle and produce intensity finally becomes gel; SiO under middle temperature in the silicon sol 2Generate trichroite with the reaction of magnesium-aluminium spinel ultrafine powder, produce pottery and combine, the hot strength of material is provided.
Said silicon nitride powder is commercially available silicon nitride powder.Because the thermal conductivity of silicon nitride is good, can improve the heat-shock resistance of material, at high temperature be oxidized to silicon-dioxide in addition, generate trichroite with the magnesium-aluminium spinel reaction and produce ceramic the combination, the hot strength of material is provided.
Said organic bond can be selected from the combination of any one or two kinds of commercial polyethylene alcoholic solution, ROHM product emulsion.Its effect is under the situation of silicon sol combination particulate insufficient strength, to add, and improves the normal temperature strength of material.
Said high efficiency water reducing agent can be selected from any one or a few the combination in sulphonate series concrete high-efficiency water reducing agent (WRA-1), polycarboxylic acid series high efficiency water reducing agent (WRA-2), tripoly phosphate sodium STPP high efficiency water reducing agent, Sodium hexametaphosphate 99 high efficiency water reducing agent and the ZX-I high efficiency water reducing agent (WRA-3) of sulphonate series concrete high-efficiency water reducing agent, condensation trimeric cyanamide of commercially available condensation naphthaldehyde.Its effect is better dispersing ultrafine powder, micro mist, improves the normal temperature strength of material, reduces the apparent porosity of material.
Embodiment provided detailed embodiment and concrete operating process, but protection scope of the present invention is not limited to following embodiment being to implement under the prerequisite with technical scheme of the present invention.
Method therefor is ordinary method if no special instructions among the following embodiment.
Embodiment 1-3, cement kiln are with the preparation and the detection of magnesium-aluminium spinel resistive connection skin amorphous refractory
One, cement kiln is with the preparation of magnesium-aluminium spinel resistive connection skin amorphous refractory
Embodiment of the invention 1-3 cement kiln is as shown in table 1 with the prescription of magnesium-aluminium spinel resistive connection skin amorphous refractory:
Table 1 embodiment 1-3 cement kiln is with the prescription (unit: kilogram) of magnesium-aluminium spinel resistive connection skin amorphous refractory
The cement kiln of embodiment 1-3 may further comprise the steps with the preparation method of magnesium-aluminium spinel resistive connection skin amorphous refractory:
1) takes by weighing raw material by prescription shown in the table 1;
2) feed proportioning, mixing, ageing mixture, shaping are made base substrate, again after 500-1200 ℃ of thermal treatment, obtain cement kiln after the drying with magnesium-aluminium spinel resistive connection skin amorphous refractory.
Two, cement kiln is with the Performance Detection of magnesium-aluminium spinel resistive connection skin amorphous refractory
Detect the cement kiln of embodiment 1-3 preparation with the folding strength (according to refractory materials strength at normal temperature TP (GB/T3001-2007)) of magnesium-aluminium spinel resistive connection skin amorphous refractory, compressive strength (according to refractory materials cold crushing strength TP (GB/T5072-2008)), with alkaliferous cement slurry resistive connection skin property at high temperature (according to the splitting tension test of proposition in " measuring the cement Study on Tensile Strength " with split the law; Between test block of the same race and the skinning material resistive connection skin property represent with tensile splitting strength; The low explanation of intensity level resistive connection skin property is good; Vice versa), burn till line and change (heat permanent line according to refractory materials and change TP (GB/T5988-2007)) and the remaining folding strength conservation rate (the thermal shock fatigue test that proposes in according to " research that the fatigue behaviour of refractory materials anti-thermal shock is estimated ") after thermal shock fatigue test 10 times is air-cooled, the test specimen that the while processes with the equal specification of amorphous refractory with unshape refractory with commercially available cement kiln compares (the high-strength alkaline-resisting mould material of 13NL, 50S crusting resistant pouring material).
Detected result is as shown in table 2, detected result show product of the present invention contrast has good manufacturing property (raw material through batching, mixing, the ageing mixture postforming is functional, is convenient to the demoulding, truncation arrisdefect not.110 ℃ of folding strengths reach 8MPa behind the maintenance 24h, and 110 ℃ of compressive strengths arrive 40MPa, are convenient to transport and fire.) and excellent high temperature resistant, anti-scaling property (1100 ℃ of compressive strengths are burnt till line and are changed less than 0.3% more than 100MPa, explain that high-temperature physical property is good; But the tensile splitting strength of 1200 ℃ of skinning test blocks of 13NL and 50S is higher, is more than 4 times of this product average, and the anti-scaling property of the anti-scaling property of contrast not as this product is described.); Through adding mineral such as trichroite, silicon nitride; Improved greatly the magnesia-aluminum spinel composite fire-resistant material goods thermal shock resistance (in 1100 ℃ of thermal shock fatigue tests, 10 air-cooled remaining folding strength conservation rate averages of this material reach 85%, surpass 13NL nearly 30%, a little less than 50S).Take all factors into consideration each item performance index, explain that product of the present invention is superior to contrast.
Table 2 embodiment 1-3 cement kiln is with the performance test results of magnesium-aluminium spinel resistive connection skin unshape refractory
Comprehensive; Refractory materials of the present invention is to be that principal crystalline phase, trichroite are paracrystalline phase with the magnesium-aluminium spinel; With the combination of silicon sol and polyvinyl alcohol solution, ROHM emulsion any one or two kinds as wedding agent; Produce intensity through coalescence between silicon sol and the fire resisting material particle at normal temperatures, add organic bond under the situation of insufficient strength and come bonded particulate to produce intensity; Middle temperature (700-1000 ℃) is magnesium-aluminium spinel ultrafine powder (MgOAl down 2O 3) SiO in beginning and silicon ash, the silicon sol 2Reaction generates trichroite (2MgO2Al 2O 35SiO 2) produce ceramic the combination; High temperature (1000-1300 ℃) is MgOAl down 2O 3With SiO 2Reaction rate accelerates, generate more trichroite (2MgO2Al 2O 35SiO 2), forming with the magnesium-aluminium spinel is that principal crystalline phase, trichroite are the heterogeneous structure of paracrystalline phase.Thereby make this kind refractory materials have certain high temperature resistant and excellent resistive connection skin, thermal shock resistance, can with the resistive connection skin amorphous refractory of the supporting use of magnesium-aluminium spinel resistive connection skin unshape refractory as novel concrete dry-process rotory kiln and cement presintering production technique.

Claims (10)

1. a cement kiln is with magnesium-aluminium spinel resistive connection skin amorphous refractory; Its raw material comprises the magnesium-aluminium spinel 74-88 weight part that particle diameter cooperates in the following level Four of 5mm, the trichroite 9-17 weight part that particle diameter cooperates in the following two-stage of 3mm, silicon ash 1-2 weight part; Silicon sol 1-2 weight part; Silicon nitride powder 0-6 weight part, organic bond 2-6 weight part, high efficiency water reducing agent 0.05-0.15 weight part.
2. cement kiln according to claim 1 is with magnesium-aluminium spinel resistive connection skin amorphous refractory, and it is characterized in that: its composition of raw materials comprises following components by weight portion:
1-5mm magnesium-aluminium spinel 46-56 part,
0.088-1mm magnesium-aluminium spinel 10-14 part,
0.02-0.088mm magnesium-aluminium spinel 6-15 part,
Less than 0.02mm magnesium-aluminium spinel ultrafine powder 9-12 part,
0.088-3mm trichroite 0-14 part,
Less than 0.088mm trichroite 0-9 part,
Silicon ash 1-2 part,
Silicon sol 1-2 part,
Silicon nitride powder 0-6 part,
Organic bond 2-6 part,
High efficiency water reducing agent 0.05-0.15 part;
Wherein, trichroite and silicon nitride are not 0 simultaneously.
3. cement kiln according to claim 1 is with magnesium-aluminium spinel resistive connection skin amorphous refractory, and it is characterized in that: its composition of raw materials comprises following components by weight portion:
1-5mm magnesium-aluminium spinel 49-56 part,
0.088-1mm magnesium-aluminium spinel 12-14 part,
0.02-0.088mm magnesium-aluminium spinel 9-15 part,
Less than 0.02mm magnesium-aluminium spinel ultrafine powder 9-12 part,
0.088-3mm trichroite 0-9 part,
Less than 0.088mm trichroite 0-9 part,
Silicon ash 1-2 part,
Silicon sol 1-2 part,
Organic bond 4-6 part,
0.15 part of high efficiency water reducing agent;
Wherein, the trichroite of two grades is not 0 simultaneously.
4. cement kiln according to claim 1 is with magnesium-aluminium spinel resistive connection skin amorphous refractory, and it is characterized in that: its composition of raw materials comprises following components by weight portion:
56 parts of 1-5mm magnesium-aluminium spinels,
0.088-1mm 14 parts of magnesium-aluminium spinels,
0.02-0.088mm 9 parts of magnesium-aluminium spinels,
Less than 9 parts of 0.02mm magnesium-aluminium spinel ultrafine powders,
Less than 9 parts of 0.088mm trichroites,
2 parts of silicon ashes,
1 part of silicon sol,
6 parts of organic bonds,
0.15 part of high efficiency water reducing agent.
5. cement kiln according to claim 1 is with magnesium-aluminium spinel resistive connection skin amorphous refractory, and it is characterized in that: its composition of raw materials comprises following components by weight portion:
46 parts of 1-5mm magnesium-aluminium spinels,
0.088-1mm 10 parts of magnesium-aluminium spinels,
0.02-0.088mm 6 parts of magnesium-aluminium spinels,
Less than 12 parts of 0.02mm magnesium-aluminium spinel ultrafine powders,
0.088-3mm 14 parts of trichroites,
Less than 3 parts of 0.088mm trichroites,
1 part of silicon ash,
2 parts of silicon sol,
6 parts of silicon nitride powders,
2 parts of organic bonds,
0.05 part of high efficiency water reducing agent.
6. cement kiln according to claim 1 is with magnesium-aluminium spinel resistive connection skin amorphous refractory, and it is characterized in that: its composition of raw materials comprises following components by weight portion:
49 parts of 1-5mm magnesium-aluminium spinels,
0.088-1mm 12 parts of magnesium-aluminium spinels,
0.02-0.088mm 15 parts of magnesium-aluminium spinels,
Less than 12 parts of 0.02mm magnesium-aluminium spinel ultrafine powders,
0.088-3mm 9 parts of trichroites,
1 part of silicon ash,
2 parts of silicon sol,
4 parts of organic bonds,
0.15 part of high efficiency water reducing agent.
According to the arbitrary described cement kiln of claim 1 to 6 with magnesium-aluminium spinel resistive connection skin amorphous refractory, it is characterized in that: said magnesium-aluminium spinel is commercially available fireproof magnesia alumina spinel materials;
Said magnesium-aluminium spinel ultrafine powder is that commercially available magnesium aluminate spinel refractory raw material sieves 95% magnesium-aluminium spinel ultrafine powder down through the 0.02mm that obtains after processing.
Said trichroite is commercially available cordierite refractory material;
Said silicon ash is commercially available silicon ash products;
Said silicon sol is commercially available silicon sol product;
Said silicon nitride powder is commercially available silicon nitride powder;
Said organic bond can be selected from the combination of any one or two kinds of commercial polyethylene alcoholic solution, ROHM product emulsion;
Said high efficiency water reducing agent can be selected from any one or a few the combination in sulphonate series concrete high-efficiency water reducing agent, polycarboxylic acid series high efficiency water reducing agent, tripoly phosphate sodium STPP high efficiency water reducing agent, Sodium hexametaphosphate 99 high efficiency water reducing agent and the ZX-I high efficiency water reducing agent of sulphonate series concrete high-efficiency water reducing agent, condensation trimeric cyanamide of commercially available condensation naphthaldehyde.
8. cement kiln according to claim 1 and 2 is with magnesium-aluminium spinel resistive connection skin amorphous refractory; It is characterized in that: said cement kiln uses magnesium-aluminium spinel resistive connection skin amorphous refractory to be the setting product, and its specification is according to the size design at each position of kiln tail system in cement presintering production technique and the cement dry method rotary kiln.
9. method for preparing the arbitrary said cement kiln of claim 1 to 8 with magnesium-aluminium spinel resistive connection skin amorphous refractory may further comprise the steps:
1) takes by weighing raw material by prescription;
2) feed proportioning, mixing, ageing mixture, shaping are made base substrate, again after 500-1200 ℃ of thermal treatment, obtain cement kiln after the drying with magnesium-aluminium spinel resistive connection skin amorphous refractory.
The arbitrary described cement kiln of claim 1 to 8 with magnesium-aluminium spinel resistive connection skin amorphous refractory can with the resistive connection skin amorphous refractory of the supporting use of magnesium-aluminium spinel resistive connection skin unshape refractory as novel concrete dry-process rotory kiln and cement presintering production technique.
CN201110212807.8A 2011-07-27 2011-07-27 Magnesia-alumina spinel skinning-resistant non-amorphous refractory material for cement kiln as well as preparation method and application thereof Active CN102391002B (en)

Priority Applications (1)

Application Number Priority Date Filing Date Title
CN201110212807.8A CN102391002B (en) 2011-07-27 2011-07-27 Magnesia-alumina spinel skinning-resistant non-amorphous refractory material for cement kiln as well as preparation method and application thereof

Applications Claiming Priority (1)

Application Number Priority Date Filing Date Title
CN201110212807.8A CN102391002B (en) 2011-07-27 2011-07-27 Magnesia-alumina spinel skinning-resistant non-amorphous refractory material for cement kiln as well as preparation method and application thereof

Publications (2)

Publication Number Publication Date
CN102391002A true CN102391002A (en) 2012-03-28
CN102391002B CN102391002B (en) 2014-05-28

Family

ID=45858410

Family Applications (1)

Application Number Title Priority Date Filing Date
CN201110212807.8A Active CN102391002B (en) 2011-07-27 2011-07-27 Magnesia-alumina spinel skinning-resistant non-amorphous refractory material for cement kiln as well as preparation method and application thereof

Country Status (1)

Country Link
CN (1) CN102391002B (en)

Cited By (2)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
CN104671805A (en) * 2015-01-23 2015-06-03 湖州丰盛新材料有限公司 Anti-skinning castable and preparation method thereof
CN109912312A (en) * 2019-04-25 2019-06-21 郑州金世耐火材料有限公司 A kind of anti-erosion castable refractory

Families Citing this family (1)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
CN105130467B (en) * 2015-08-26 2017-10-10 北京利尔高温材料股份有限公司 A kind of industrial kiln lightweight projection refractory material and preparation method and application

Citations (1)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
CN101412630A (en) * 2008-08-29 2009-04-22 瑞泰科技股份有限公司 Antiskinning castable for magnesium aluminate spinel for cement kiln

Patent Citations (1)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
CN101412630A (en) * 2008-08-29 2009-04-22 瑞泰科技股份有限公司 Antiskinning castable for magnesium aluminate spinel for cement kiln

Non-Patent Citations (3)

* Cited by examiner, † Cited by third party
Title
张巍 等: "堇青石对莫来石-铝矾土浇注料性能的影响", 《硅酸盐通报》 *
涂军波 等: "氮化硅加入量对镁质浇注料力学性能的影响", 《硅酸盐学报》 *
蔡艳芝 等: "硅溶胶对莫来石结合刚玉质耐火材料力学性能的影响", 《硅酸盐学报》 *

Cited By (4)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
CN104671805A (en) * 2015-01-23 2015-06-03 湖州丰盛新材料有限公司 Anti-skinning castable and preparation method thereof
CN104671805B (en) * 2015-01-23 2016-08-24 湖州丰盛新材料有限公司 A kind of crusting resistant pouring material and preparation method thereof
CN109912312A (en) * 2019-04-25 2019-06-21 郑州金世耐火材料有限公司 A kind of anti-erosion castable refractory
CN109912312B (en) * 2019-04-25 2022-05-24 郑州金世耐火材料有限公司 Anti-erosion refractory castable

Also Published As

Publication number Publication date
CN102391002B (en) 2014-05-28

Similar Documents

Publication Publication Date Title
CN102491770B (en) Wear-resisting castable refractory
CN102329143B (en) Anti-skinning unshaped refractory material made of magnesium aluminate spinel used for cement kiln and preparation method and application of anti-skinning unshaped refractory material
CN101987793B (en) Anti-skinning pouring material for cement kiln
CN103204692B (en) Novel lightweight mullite brick and fabrication method thereof
CN103553689B (en) High-strength, alkali-proof and fireproof pouring material
CN104725058B (en) Periclase-magnesium ferrum hercynite/forsterite composite brick
CN104086198B (en) A kind of glass furnace Apyre flame-proof material and goods thereof
CN103739299A (en) Fire-resistant self-flow castable
CN103601507B (en) A kind of complex sintered refractory material of low porosity magnesium aluminate spinel-zirconia corundum zirconia and production technology thereof
CN105481394A (en) Low-cost wear-resisting and fire-resisting pouring material
CN103819212B (en) Refractory lining pouring material for incineration rotary kiln
CN101525245A (en) High strength non-cement corundum castable material used in heating furnace
CN105801064A (en) Production technology of light-weight and heat-insulation brick
CN103864320A (en) Low heat Portland slag cement and production method thereof
CN105801133A (en) Light-weight and heat-insulation brick
CN107573098A (en) A kind of lightweight castable for sintering ignition furnace
CN104876605A (en) Refractory brick for boiler
CN106588059A (en) Prefabricated member for lime rotary kiln and preparation method of prefabricated member
CN104671805B (en) A kind of crusting resistant pouring material and preparation method thereof
CN102391002B (en) Magnesia-alumina spinel skinning-resistant non-amorphous refractory material for cement kiln as well as preparation method and application thereof
CN105837168B (en) A kind of preparation method of high-strength building block
CN106336227B (en) A kind of mineral products waste refractory material and its preparation process
CN104140233A (en) A 1200 DEG C grade low-iron thermally-insulating castable used for industrial furnaces and a preparing method thereof
CN101434492B (en) Large-sized special-shaped composite magnesium aluminate spinel product and technique for producing the same
CN104311048A (en) High-strength alkali-resisting refractory castable

Legal Events

Date Code Title Description
C06 Publication
PB01 Publication
C10 Entry into substantive examination
SE01 Entry into force of request for substantive examination
C14 Grant of patent or utility model
GR01 Patent grant