CN105481387A - Novel casting material with abrasion resistance and corrosion resistance and preparation method of novel casting material - Google Patents
Novel casting material with abrasion resistance and corrosion resistance and preparation method of novel casting material Download PDFInfo
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- CN105481387A CN105481387A CN201410478127.4A CN201410478127A CN105481387A CN 105481387 A CN105481387 A CN 105481387A CN 201410478127 A CN201410478127 A CN 201410478127A CN 105481387 A CN105481387 A CN 105481387A
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Abstract
The invention discloses a novel fireproof casting material with excellent abrasion resistance, excellent alkali corrosion resistance and excellent washing resistance, namely a novel casting material with abrasion resistance and corrosion resistance, and a preparation method of the novel casting material. After the novel casting material with abrasion resistance and corrosion, prepared by the method disclosed by the invention, is burnt at 1300 DEG C for 3 hours, the abrasion resistance of the novel casting material is lower than 3.5/cm3, and the alkali resistance of the novel casting material reaches a first class to a second class. The novel casting material is used for sites of tertiary air duct elbows, air valves, throat parts of grate coolers, low walls and the like in a large-scale cement kiln. Compared with fireproof materials used at present, the novel casting material has good abrasion resistance, and besides, has excellent alkali corrosion; the running rate of the cement kiln can be greatly increased.
Description
Technical field
The present invention relates to technical field of refractory castable, specifically, relate to a kind of wear-resisting erosion resistant Novel pouring material and preparation method thereof.
Background technology
From the nineties later stage in last century till now, the new type nonaqueous cement of China obtains huge development, particularly large-scale new dry process rotary kiln, the new dry cement production technology equipment producing 10000 tons as produced 5000 ton, mouthfuls daily is reached advanced world standards substantially.China has become World Water mud manufacturing center, and current domestic existing daily output has exceeded more than 400 more than 2500 ton large-scale dry-process cement rotary kiln production lines.
Large-scale new dry process rotary kiln bend for triple air hose, air-valve position are subject to washing away of the high-speed and high-temperature air-flow carrying a large amount of cement clinker dust, grate-cooler throat, parapet are subject to the long-term grinding of a large amount of grog, the refractory castable usually serious wear at these positions, its life-span is often very low.Meanwhile, the use of hard coal, low grade coal and the burning of solid waste, cause the compositions such as alkali, chlorine, sulphur obviously to increase, their circulation collection, also obviously aggravates the erosion of the refractory materials at each position of kiln system.After bend for triple air hose, air-valve position, grate-cooler throat, these positions of parapet are corroded by compositions such as alkali, chlorine, sulphur, form alkali cracking, its wear resisting property is extremely acute to decline, fallen by sweep of gases soon, its life cycle, need often to repair or change, affect the normal production of cement kiln, the short normal operation affecting kiln.Want the work-ing life extending these positions, the correlated performance of this position refractory castable must be improved, to adapt to cement production process requirement.Traditional Alkali resistant castable refractory, high alumina castable and corundum castable can not meet service requirements, so should improve wear resisting property and the alkaline resistance properties of refractory castable.
Summary of the invention
The object of this invention is to provide a kind of Novel fire-resistant mould material with wear resistance, alkali attack, abrasion resistance excellence, i.e. a kind of wear-resisting erosion resistant Novel pouring material and preparation method thereof.
The preparation method realizing wear-resisting resistant to corrosion Novel pouring material of the present invention is made up of proportioning raw materials and manufacture craft.
A kind of wear-resisting erosion resistant Novel pouring material is made up of proportioning raw materials and manufacture craft, and its proportioning raw materials is pressed row % by weight and prepared:
Superfine aluminite granularity 5-3mm15-25%;
Superfine aluminite granularity 3-1mm25-35%;
Superfine aluminite granularity 1-0mm10-20%;
Superfine aluminite granularity <0.088mm5-15%;
Carborundum granularity <0.044mm5-15%;
High-purity microlite sand 1-2mm1-10%;
Ultrafine silica powder l-10%;
Alumina powder 5 μm of 1-10%;
Agalmatolite micro mist 5 μm of 1-10%;
High-alumina cement 1-5%;
Tripoly phosphate sodium STPP 0.1-0.5%.
Described preparation method is: first by tripoly phosphate sodium STPP and high-alumina cement, premix is made in pre-mixing in mixer, in mixer, superfine for each granularity aluminite, silicon carbide, fused quartz, ultrafine silica powder, alumina powder, Calcined polishing aluminum oxide micro mist, agalmatolite micro mist and premix are mixed, by the mould material bag distribution packaging mixed again.
In job location, to add water stirring with forced stirrer, expect into mould or position to be cast by what be stirred, maintenance, after 48 hours, can carry out baking processing.
Its 1300 DEG C, wear-resisting resistant to corrosion Novel pouring material of the present invention to burn after latter 3 hours wear resistance lower than 3.5/cm
3, alkali resistance reaches one to secondary, has wear resistance, alkali attack, abrasion resistance.At positions such as large-size cement kiln bend for triple air hose, air-valve, grate-cooler throat, parapets, compared with the refractory materials used at present, its wear resistance is good, has excellent alkali attack simultaneously, can greatly improve cement kiln operation factor.
Embodiment
The specific embodiment of the present invention is made up of proportioning raw materials and manufacture craft:
Wear-resisting resistant to corrosion Novel pouring material proportioning raw materials is pressed row % by weight and is prepared:
Superfine aluminite granularity 5-3mm17%;
Superfine aluminite granularity 3-1mm32%;
Superfine aluminite granularity 1-0mm11%;
Superfine aluminite granularity <0.088mm6%;
Carborundum granularity <0.044mm9%;
High-purity microlite sand 1-2mm4%;
Ultrafine silica powder 3%;
Alumina powder 5 μm 5%;
Agalmatolite micro mist 5 μm 8%;
High-alumina cement 4.7%;
Tripoly phosphate sodium STPP 0.3%.
Wear-resisting resistant to corrosion Novel pouring material manufacture craft of the present invention is:
First by tripoly phosphate sodium STPP and high-alumina cement, premix is made in pre-mixing in mixer, in mixer, superfine for each granularity aluminite, silicon carbide, fused quartz, ultrafine silica powder, alumina powder, Calcined polishing aluminum oxide micro mist, agalmatolite micro mist and premix are mixed, by the mould material bag distribution packaging mixed again.The wear-resisting resistant to corrosion Novel pouring material property adopting the embodiment of the present invention to prepare can be: 11O DEG C of volume density 2.75g/cm
3, wear resistance 3.0cm
3, alkali resistance one-level, 110 DEG C × 24h compressive strength 125MPa, 1100 DEG C × 3h compressive strength 135MPa, 110 DEG C × 24h folding strength 13MPa, 1100 DEG C × 3h folding strength 15MPa.
Claims (2)
1. wear-resisting erosion resistant Novel pouring material and preparation method thereof, is characterized in that: be made up of proportioning raw materials and manufacture craft, and its proportioning raw materials is pressed row % by weight and prepared:
Superfine aluminite granularity 5-3mm15-25%;
Superfine aluminite granularity 3-1mm25-35%;
Superfine aluminite granularity 1-0mm10-20%;
Superfine aluminite granularity <0.088mm5-15%;
Carborundum granularity <0.044mm5-15%;
High-purity microlite sand 1-2mm1-10%;
Ultrafine silica powder l-10%;
Alumina powder 5 μm of 1-10%;
Agalmatolite micro mist 5 μm of 1-10%;
High-alumina cement 1-5%;
Tripoly phosphate sodium STPP 0.1-0.5%.
2. wear-resisting erosion resistant Novel pouring material of one according to claim 1 and preparation method thereof, it is characterized in that: described preparation method is: first by tripoly phosphate sodium STPP and high-alumina cement, premix is made in pre-mixing in mixer, in mixer, superfine for each granularity aluminite, silicon carbide, fused quartz, ultrafine silica powder, alumina powder, Calcined polishing aluminum oxide micro mist, agalmatolite micro mist and premix are mixed, by the mould material bag distribution packaging mixed again.
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Cited By (5)
Publication number | Priority date | Publication date | Assignee | Title |
---|---|---|---|---|
CN108424129A (en) * | 2018-04-27 | 2018-08-21 | 武汉科技大学 | A kind of heat insulation and wear resistance castable refractory and preparation method thereof |
CN109111209A (en) * | 2018-07-27 | 2019-01-01 | 赞皇金隅水泥有限公司 | A kind of cement kiln micro crystal material |
CN110526722A (en) * | 2019-09-02 | 2019-12-03 | 马鞍山利尔开元新材料有限公司 | A kind of moulding by casting high life corundum mullite rock collector nozzle of ladle brick and preparation method thereof |
CN110563471A (en) * | 2019-09-18 | 2019-12-13 | 江苏嘉耐高温材料有限公司 | Corrosion-resistant aluminum silicon carbide castable and preparation method thereof |
CN115403360A (en) * | 2022-08-29 | 2022-11-29 | 郑州瑞泰耐火科技有限公司 | Preparation method of energy-saving composite long-life brick for throat part of cement kiln grate cooler |
-
2014
- 2014-09-19 CN CN201410478127.4A patent/CN105481387A/en active Pending
Cited By (7)
Publication number | Priority date | Publication date | Assignee | Title |
---|---|---|---|---|
CN108424129A (en) * | 2018-04-27 | 2018-08-21 | 武汉科技大学 | A kind of heat insulation and wear resistance castable refractory and preparation method thereof |
CN108424129B (en) * | 2018-04-27 | 2020-12-18 | 武汉科技大学 | Heat-insulating wear-resistant refractory castable and preparation method thereof |
CN109111209A (en) * | 2018-07-27 | 2019-01-01 | 赞皇金隅水泥有限公司 | A kind of cement kiln micro crystal material |
CN109111209B (en) * | 2018-07-27 | 2021-04-13 | 赞皇金隅水泥有限公司 | Microcrystal material for cement kiln |
CN110526722A (en) * | 2019-09-02 | 2019-12-03 | 马鞍山利尔开元新材料有限公司 | A kind of moulding by casting high life corundum mullite rock collector nozzle of ladle brick and preparation method thereof |
CN110563471A (en) * | 2019-09-18 | 2019-12-13 | 江苏嘉耐高温材料有限公司 | Corrosion-resistant aluminum silicon carbide castable and preparation method thereof |
CN115403360A (en) * | 2022-08-29 | 2022-11-29 | 郑州瑞泰耐火科技有限公司 | Preparation method of energy-saving composite long-life brick for throat part of cement kiln grate cooler |
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Application publication date: 20160413 |