CN101792321B - Energy-saving type high-temperature high-thermal shock resistance kiln furnace structural material prepared by using waste fireproof kiln furniture and method for preparing same - Google Patents
Energy-saving type high-temperature high-thermal shock resistance kiln furnace structural material prepared by using waste fireproof kiln furniture and method for preparing same Download PDFInfo
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Abstract
The invention relates an energy-saving type high-temperature high-thermal shock resistance kiln furnace structural material prepared by using waste fireproof kiln furniture and a method for preparing the same. The kiln furnace structural material comprises the following raw materials in percentage by weight: 30 to 80 percent of aggregate and 20 to 70 percent of compound substrate material; and based on the 100 parts of the total weight of the aggregate and the compound substrate material, 0.5 to 3.5 percent of additive, 0.4 to 2.1 percent of auxiliary agent, 0.5 to 5.0 percent of bonding agent, 0.1 to 1.5 percent of dispersing agent and 10 to 20 percent of water are added, wherein the aggregate may be selected from kiln furniture waste materials-clinkers of oxide bonded silicon carbide, silicon nitride bonded silicon carbide and clay bonded silicon carbide, the compound substrate material may be selected from kaolin, Al2O3 powder, silicon oxide fine powder, cyanite minerals and mullite waste fireproof kiln furniture fine powder, the additive may be potash feldspar or potassium carbonate, and the auxiliary agent is formed by MgCO3 and AlF3. Because the kiln furniture waste materials are used as main components of the aggregates and the compound substrate materials, the kiln furnace structural material has a great significance for the comprehensive utilization of waste resources and improvement of ecological environment.
Description
Technical field:
The present invention relates to a kind of method of utilizing the fire-resistant kiln furnitures that give up to prepare energy-saving type high-temperature high-thermal shock resistance furnace construction material.
Background technology:
Kiln body, kiln car structural system comprise that shuttle kiln, tunnel, roller kiln kiln ceiling structure system, kiln wall system, hollow encloses brickkiln truck system etc.The used refractory materials of said system conventional mainly is a refractory brick, and refractory brick comprises heavy brick and light cinder brick.
Kiln except will supplying with the required heat energy of green part, also will be supplied with kiln body, the required heat energy of kiln car structural system in burning the stove operation process.Because refractory brick is solid construction, and than great, absorb a large amount of heat energy, energy loss is big.
In addition, kiln need be used to place or/and isolate the fire-resistant kiln furnitures of green part in burning the stove operation in a large number.Because kiln furnitures are consumable accessorys, with producing a large amount of kiln furnitures waste materials.Existing kiln furnitures waste material does not have utility value, a underbed of filling out as hollow ground.
Summary of the invention:
The objective of the invention is to characteristics and kiln furnitures waste material, a kind of energy-saving type high-temperature high-thermal shock resistance furnace construction material and working method thereof of utilizing useless fire-resistant kiln furnitures preparation is provided to existing refractory brick.
The energy-saving type high-temperature high-thermal shock resistance furnace construction material of the useless fire-resistant kiln furnitures preparation of utilization of the present invention comprises the material of following weight ratio: aggregate 30-80%, composite interstitial substance material 20-70%; Total component 100 weight parts in aggregate and composite interstitial substance material add: additive 0.5-3.5%, auxiliary 0.4-2.1%; Sticker 0.5-5.0%; Dispersion agent 0.1-1.5%, water 10-20%, wherein:
(1) aggregate; Be selected from oxide combined silicon carbide, silicon nitride combined silicon carbide, clay-carborundum kiln furnitures waste material grog; Said kiln furnitures waste material through sorting, removal of impurities, pulverize, sieve, deironing and making, granularity≤1.0mm, spent clay based on silicon carbide grog account for the 30-50% of weight ratio; Oxide combined silicon carbide or silicon nitride combined silicon carbide grog account for the 50-70% of weight ratio;
(2) composite interstitial substance material comprises the material of following weight ratio: kaolin (comprising hard or soft kaolin, coal drystone, flint clay raw material) 15-45%, Al
2O
3Powder 0.5-10%, silicon oxide fine powder 1.0-10%, kyanite family mineral (comprising: the mineral of sillimanite, andaluzite, three kinds of homogeneity out-phase of kyanite) 8-30%, the useless fire-resistant kiln furnitures fine powder 15-50% of mullite, granularity is≤325 orders;
(3) additive is potassium felspar sand or salt of wormwood, granularity≤325 orders;
(4) auxiliary is by MgCO
3And AlF
3Constitute, proportioning is respectively 0.1-0.6% and 0.3-1.5%;
(5) sticker is that dextrin, tung oil, methylcellulose gum (MC), CMC 99.5 (CMC), Vltra tears are or/and lignosulfite;
(6) dispersion agent is that ZX-I, naphthalenesulfonate, tripoly phosphate sodium STPP, Sodium hexametaphosphate 99 are or/and tartrate.
The useless fire-resistant kiln furnitures of utilization of the present invention prepare the method for energy-saving type high-temperature high-thermal shock resistance furnace construction material, and its technology comprises:
(1) batching: the material that comprises the following weight ratio: aggregate 30-80%, composite interstitial substance material 20-70% is in total component 100 weight parts of aggregate and composite interstitial substance material; Add: additive 0.5-3.5%; Auxiliary 0.4-2.1%, sticker 0.5-5.0%, dispersion agent 0.1-1.5%; Water 10-20%, wherein:
(A) aggregate; Be selected from oxide combined silicon carbide, silicon nitride combined silicon carbide, clay-carborundum kiln furnitures waste material grog; Said kiln furnitures waste material through sorting, removal of impurities, pulverize, sieve, deironing and making, granularity≤1.0mm, spent clay based on silicon carbide grog account for the 30-50% of weight ratio; Oxide combined silicon carbide or silicon nitride combined silicon carbide grog account for the 50-70% of weight ratio;
(B) composite interstitial substance material comprises the material of following weight ratio: kaolin (comprising hard or soft kaolin, coal drystone, flint clay raw material) 15-45%, Al
2O
3Powder 0.5-10%, silicon oxide fine powder 1.0-10%, kyanite family mineral (comprising: the mineral of sillimanite, andaluzite, three kinds of homogeneity out-phase of kyanite) 8-30%, the useless fire-resistant kiln furnitures fine powder 15-50% of mullite, granularity is≤325 orders;
(C) additive is potassium felspar sand or salt of wormwood, granularity≤325 orders;
(D) auxiliary is by MgCO
3And AlF
3Constitute, proportioning is respectively 0.1-0.6% and 0.3-1.5%;
(E) sticker is that dextrin, tung oil, methylcellulose gum (MC), CMC 99.5 (CMC), Vltra tears are or/and lignosulfite;
(F) dispersion agent is that ZX-I, naphthalenesulfonate, tripoly phosphate sodium STPP, Sodium hexametaphosphate 99 are or/and tartrate.
(2) mix is with water and all material mixing and stirring of formula ratio;
(3) vacuum pugging stirs vacuum tightness≤0.095Mpa with the said material of technology (2) in the vacuum pugging stirrer;
(4) extrusion moulding utilizes mould and moulding forcing machine, extrusion moulding;
(5) drying, dry back water cut≤1%;
(6) burn till, product through after the drying in High Temperature Furnaces Heating Apparatus crystallization burn till, temperature is 1450 ℃-1520 ℃, is incubated 8-12 hour.
The present invention has following positively effect:
1, be the staple of aggregate and composite interstitial substance material with kiln furnitures waste material (the useless fire-resistant kiln furnitures of oxide combined silicon carbide, silicon nitride combined silicon carbide, clay-carborundum, mullite), to the comprehensive utilization of resources of giving up, improve the ecological environment significant;
2, be additive with potassium felspar sand or salt of wormwood, purpose is to eliminate cristobalite, forms unformed glassy phase, makes mullite crystal form reticulated structure.
3, with MgCO
3And AlF
3Be auxiliary, add MgCO
3Purpose be to reduce sintering temperature, promote the mullite growth; Add AlF
3Purpose be to promote mullite growth densification.
4, the kyanite family mineral in the composite interstitial substance material (comprising: the mineral of sillimanite, andaluzite, three kinds of homogeneity out-phase of kyanite) as the nucleus agent; Its purpose is to promote to form when mullitization begins more nucleus; Make mullite crystal be the chain pilotaxitic texture of long column shape, improve its resistance to compression, folding strength and thermostability.
5, this structured material adopts mould and moulding extruder for shaping, and production efficiency is high, and cost is low;
6, the present invention is applicable to that the kiln ceiling structure system that produces, kiln wall system, hollow encloses the structured material of brickkiln truck system, hollow leg system etc., has advantages such as lightweight heat-proof, compact construction, safe and reliable, easy construction.
7, this furnace construction material replaces traditional refractory materials, and the product less energy-consumption is 30% of traditional heavy refractory brick, is proportion 1.0g/cm
3Light cinder brick 70%, when being used for furnace construction material and refractory fibre and doing kiln body, kiln car car lining, ceiling structure system, kiln wall system, the product hear rate is 26.2%～28.2% of traditional heavy refractory brick, is proportion 1.0g/cm
3Light cinder brick do 61.1～66% of car when lining.
8, use temperature: hollow leg≤1450 ℃ are used in kiln furred ceiling and kiln body≤1350 ℃, kiln car structure and kiln
Embodiment:
Embodiment 1, the energy-saving type high-temperature high-thermal shock resistance furnace construction material that utilizes useless fire-resistant kiln furnitures to prepare.
Material by the following weight ratio constitutes: aggregate 60kg, and composite interstitial substance material 40kg, total component 100 weight parts in aggregate and composite interstitial substance material add: salt of wormwood 2.5kg, granularity≤325 orders; MgCO
30.5kg; AlF
31kg; Dextrin 2kg; Methylcellulose gum (MC) 1.5kg; ZX-I 1kg; Water 15kg, wherein:
(1) aggregate; Be selected from oxide combined silicon carbide, silicon nitride combined silicon carbide, clay-carborundum kiln furnitures waste material grog; Said kiln furnitures waste material through sorting, removal of impurities, pulverize, sieve, deironing and make granularity≤1.0mm, spent clay based on silicon carbide grog 24kg; Oxide combined silicon carbide or silicon nitride combined silicon carbide grog 36kg;
(2) composite interstitial substance material comprises following material: kaolin 12kg, Al
2O
3Powder 2.8kg, silicon oxide fine powder 3.2kg, the mineral 6kg of kyanite family, the useless fire-resistant kiln furnitures fine powder 16kg of mullite, granularity is≤325 orders.
Embodiment 2, the useless fire-resistant kiln furnitures of utilization prepare the method for energy-saving type high-temperature high-thermal shock resistance furnace construction material, and its technology comprises:
(1) batching: the method by embodiment 1 is got the raw materials ready, is prepared burden;
(2) mix is with water and all material mixing and stirring of formula ratio;
(3) vacuum pugging stirs vacuum tightness≤0.095Mpa with the said material of technology (2) in the vacuum pugging stirrer;
(4) extrusion moulding utilizes mould and moulding forcing machine, extrusion moulding;
(5) drying, dry back water cut≤1%;
(6) burn till, product through after the drying in High Temperature Furnaces Heating Apparatus crystallization burn till, temperature is 1440 ℃-1520 ℃, is incubated 8-12 hour.
Claims (2)
1. energy-saving type high-temperature high-thermal shock resistance furnace construction material that utilizes useless fire-resistant kiln furnitures preparation comprises the material of following weight ratio: aggregate 30-80%, composite interstitial substance material 20-70%; Total component 100 weight parts in aggregate and composite interstitial substance material add: additive 0.5-3.5%, auxiliary 0.4-2.1%; Sticker 0.5-5.0%; Dispersion agent 0.1-1.5%, water 10-20%, wherein:
(1) aggregate; Be selected from oxide combined silicon carbide, silicon nitride combined silicon carbide, clay-carborundum kiln furnitures waste material grog; Said kiln furnitures waste material through sorting, removal of impurities, pulverize, sieve, deironing and making, granularity≤1.0mm, spent clay based on silicon carbide grog account for the 30-50% of weight ratio; Oxide combined silicon carbide or silicon nitride combined silicon carbide grog account for the 50-70% of weight ratio;
(2) composite interstitial substance material comprises the material of following weight ratio: kaolin 15-45%, Al
2O
3Powder 0.5-10%, silicon oxide fine powder 1.0-10%, the mineral 8-30% of kyanite family, the useless fire-resistant kiln furnitures fine powder 15-50% of mullite, granularity is≤325 orders;
(3) additive is potassium felspar sand or salt of wormwood, granularity≤325 orders;
(4) auxiliary is by MgCO
3And AlF
3Constitute, proportioning is respectively 0.1-0.6% and 0.3-1.5%;
(5) sticker is that dextrin, tung oil, methylcellulose gum (MC), CMC 99.5 (CMC), Vltra tears are or/and lignosulfite;
(6) dispersion agent is that ZX-I, naphthalenesulfonate, tripoly phosphate sodium STPP, Sodium hexametaphosphate 99 are or/and tartrate.
2. one kind is utilized useless fire-resistant kiln furnitures to prepare the method for energy-saving type high-temperature high-thermal shock resistance furnace construction material, and its technology comprises:
(1) batching: the material that comprises the following weight ratio: aggregate 30-80%, composite interstitial substance material 20-70% is in total component 100 weight parts of aggregate and composite interstitial substance material; Add: additive 0.5-3.5%; Auxiliary 0.4-2.1%, sticker 0.5-5.0%, dispersion agent 0.1-1.5%; Water 10-20%, wherein:
(A) aggregate; Be selected from oxide combined silicon carbide, silicon nitride combined silicon carbide, clay-carborundum kiln furnitures waste material grog; Said kiln furnitures waste material through sorting, removal of impurities, pulverize, sieve, deironing and making, granularity≤1.0mm, spent clay based on silicon carbide grog account for the 30-50% of weight ratio; Oxide combined silicon carbide or silicon nitride combined silicon carbide grog account for the 50-70% of weight ratio;
(B) composite interstitial substance material comprises the material of following weight ratio: kaolin 15-45%, Al
2O
3Powder 0.5-10%, silicon oxide fine powder 1.0-10%, the mineral 8-30% of kyanite family, the useless fire-resistant kiln furnitures fine powder 15-50% of mullite, granularity is≤325 orders;
(C) additive is potassium felspar sand or salt of wormwood, granularity≤325 orders;
(D) auxiliary is by MgCO
3And AlF
3Constitute, proportioning is respectively 0.1-0.6% and 0.3-1.5%;
(E) sticker is that dextrin, tung oil, methylcellulose gum (MC), CMC 99.5 (CMC), Vltra tears are or/and lignosulfite;
(F) dispersion agent is that ZX-I, naphthalenesulfonate, tripoly phosphate sodium STPP, Sodium hexametaphosphate 99 are or/and tartrate;
(2) mix is with water and all material mixing and stirring of formula ratio;
(3) vacuum pugging stirs vacuum tightness≤0.095MPa with the said material of technology (2) in the vacuum pugging stirrer;
(4) extrusion moulding utilizes mould and moulding forcing machine, extrusion moulding;
(5) drying, dry back water cut≤1%;
(6) burn till, product through after the drying in High Temperature Furnaces Heating Apparatus crystallization burn till, temperature is 1450 ℃-1520 ℃, is incubated 8-12 hour.
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| CN2010101095829A CN101792321B (en) | 2010-02-06 | 2010-02-06 | Energy-saving type high-temperature high-thermal shock resistance kiln furnace structural material prepared by using waste fireproof kiln furniture and method for preparing same |
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| CN102863227B (en) * | 2012-09-27 | 2014-08-27 | 云南楚雄诚鑫高温新材料有限公司 | Adhesive for high-strength silicon carbide products and preparation method of adhesive |
| CN103253981B (en) * | 2013-04-25 | 2015-04-15 | 南昌大学 | Preparation method of mullite/silicon carbide complex-phase foamed ceramic |
| CN105036762A (en) * | 2015-06-21 | 2015-11-11 | 石家庄巨力科技有限公司 | Refractory and heat-insulation material for blast furnace air supply system and preparation method of refractory and heat-insulation material |
| CN105272188B (en) * | 2015-10-09 | 2017-10-27 | 广东热金宝新材料科技有限公司 | A kind of preparation method of the low aluminum-containing mullite of high crystal needle-like pilotaxitic texture |
| CN108017401A (en) * | 2017-12-25 | 2018-05-11 | 谢涛 | A kind of energy-saving and environment-friendly fire-retardant antidetonation coating material |
| CN112279658B (en) * | 2020-10-24 | 2023-03-14 | 郑州金泰科技特种耐火材料有限公司 | Environment-friendly refractory castable and production process thereof |
| CN114014666B (en) * | 2021-11-05 | 2022-10-25 | 洛阳理工学院 | Refractory castable for smoke chamber part of co-processing solid waste cement kiln |
| CN115073191A (en) * | 2022-07-13 | 2022-09-20 | 中钢集团洛阳耐火材料研究院有限公司 | Preparation method of high-temperature-resistant redox atmosphere alternate refractory material |
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| CN1785909A (en) * | 2005-12-09 | 2006-06-14 | 陈文杨 | Ltigh crystalline structure iolite mullite kiln, kiln refractory product and calcining technology |
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Effective date of registration: 20101207 Address after: 515500, Guangdong County, Jieyang City, Jiedong Province Qu River Network Applicant after: Jiedong ReJinBao New Materials Science and Technology Co., Ltd. Co-applicant after: Guangdong ReJinBao Special Refractory Industrial Co., Ltd. Co-applicant after: Chen Huangzhong Address before: Campbell 515500 Guangdong province Jiedong County West Industrial Zone Guangdong hot Special Refractory Material Industrial Co. Ltd. Applicant before: Chen Huangzhong |
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