CN103992663A - Furnace cleaning coating for aluminum - Google Patents
Furnace cleaning coating for aluminum Download PDFInfo
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- CN103992663A CN103992663A CN201410165553.2A CN201410165553A CN103992663A CN 103992663 A CN103992663 A CN 103992663A CN 201410165553 A CN201410165553 A CN 201410165553A CN 103992663 A CN103992663 A CN 103992663A
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Abstract
A furnace cleaning coating for aluminum is formed by mixing main materials with auxiliary materials, and the main materials comprise 70-90% of an aluminum-containing material, and the balance carbon-containing material; and the auxiliary materials comprise a high temperature bonding agent having a weight accounting for 1-8% of the weight of the main materials, cellulose having a weight accounting for 1-6% of the weight of the main materials, and an antifoaming agent having a weight accounting for 0.1-1% of the weight of the main materials. In the invention, the main materials are hardened in high temperature environment with the aid of the auxiliary materials comprising the high temperature bonding agent and cellulose in order to form a protection layer separating molten aluminum from the inner wall of the furnace, and a filter cakes on the protection layer in order to effectively prevent the erosion of the molten aluminum to the body of the furnace and the damages of molten aluminum caking on the inner wall of the furnace body to the wall of the furnace; and the oxidation of the carbon-containing material at a high temperature makes the protection layer formed by the cleanser unstably bonded with the inner wall of the furnace body, so the protection layer and aluminum slag adhered to the protection layer can be easily removed.
Description
Technical field
The present invention relates to the aluminium liquid splendid attire stove that aluminum casting, aluminium remelting and casting field are used, specifically stove prepurging coating for a kind of aluminium.
Background technology
Need to be by reprocessing after aluminium fusing or the field producing in aluminum casting, aluminium remelting and casting, aluminium deep processing etc., in these fields, after aluminium is melted, stove inwall can continuous slagging scorification, causing aluminium to be mixed into furnace volume constantly diminishes, the stove of 40 tons can only hold 10 tons of aluminium or still less, can cause every stove to enter aluminium amount few, has a strong impact on every furnace output.Must carry out brute force cleaning with multiple personnel or cleaning equipment just can clean out, sometimes equipment stove inner wall cleaning has been got well, inwall has also been hindered, affect work-ing life (1 year life-span of 2 years can not be used), need again build stove, nearly 500,000 yuan of expenses of every block are difficult problems urgently to be resolved hurrily in aluminum casting industry.
Summary of the invention
The series of problems causing with the furnace wall slagging scorification of stove for solving aluminium, the invention provides a kind of aluminium stove prepurging coating, before producing each time, brush clean material of the present invention at aluminium with painting on stove inwall, the slagging scorification of aluminium liquid can be attached on the clean bed of material, thereby remove from furnace wall easily.
The present invention solves the problems of the technologies described above the technical scheme of employing to be: stove prepurging preservative for a kind of aluminium, mixed by major ingredient and auxiliary material, and wherein, major ingredient is made up of alumina-bearing material and carbonaceous material, and the weight of alumina-bearing material accounts for the 70-90% of major ingredient gross weight; Described auxiliary material comprises high temperature adhesive, the Mierocrystalline cellulose of major ingredient weight 1-6% and the defoamer of major ingredient weight 0.1-1% of major ingredient weight 1-8%.
In described auxiliary material, also contain the sanitas of major ingredient weight 0.1-1%.
In described auxiliary material, also contain the cryolite powder of major ingredient weight 1-3%.
Described alumina-bearing material is one or both mixing in kaolin and coal gangue.
Described carbonaceous material is Graphite Powder 99.
The preparation method of above-mentioned prepurging preservative is: first weigh as requested the each composition in each composition and auxiliary material in major ingredient and then mix; be ground to again fineness and be no more than 100 orders; in use; add wherein a certain amount of water and stir after be painted on aluminium with on stove inwall; after brushing 2-3 time, dry in the cool; and then repeat above-mentioned brushing, dry operation and can complete for one to twice, then this aluminium can be for the production of with stove.
In the present invention; aluminum oxide in alumina-bearing material and the silicon oxide itself containing form the structure of similar sial spinel under hot conditions; and auxiliary material is its bonding rear formation protective layer, Mierocrystalline cellulose at high temperature dewaters after coking and is filled in wherein to prevent that corrosive gas from contacting effects such as causing corrosion or erosion with inboard wall of furnace body.
In the present invention, by adding cryolite powder and carbonaceous material, thereby make the aluminium liquid can be crosslinked with the protective layer that clean material forms, make the slagging scorification of aluminium slag energy on protective layer and do not contact with inwall; Meanwhile, due to carbonaceous material oxidation at high temperature, thereby it is not firm bonding that protective layer and contacting of inwall are become, convenient by the slagging scorification removing on furnace wall.
Beneficial effect: in the present invention, major ingredient is under the auxiliary material such as high temperature adhesive and Mierocrystalline cellulose auxiliary, can in hot environment, harden, thereby forming protective layer separates aluminium liquid and inboard wall of furnace body, and make filtrate slagging scorification on protective layer, effectively prevent the damage to furnace wall after the erosion of aluminium liquid to body of heater and aluminium liquid slagging scorification are on inboard wall of furnace body; Meanwhile, carbonaceous material oxidation at high temperature, becomes protective layer that clean material forms and inboard wall of furnace body illusive bonding, thus be easy to by its with and on the aluminium slag that adheres to dispose easily.
Embodiment
Below in conjunction with specific embodiment, the present invention is further elaborated, and in following embodiment, each raw material used is commercially available prod.
Embodiment 1
Stove prepurging coating for a kind of aluminium, is mixed by major ingredient and auxiliary material, and wherein, major ingredient is made up of alumina-bearing material and carbonaceous material, and the weight of alumina-bearing material accounts for 70% of major ingredient gross weight; Described auxiliary material comprises high temperature adhesive, the Mierocrystalline cellulose of major ingredient weight 1% and the defoamer of major ingredient weight 0.1% of major ingredient weight 1%.
Be more than the basic embodiment of the present embodiment, can on above basis, be improved further or limit:
As, in described auxiliary material, also contain the sanitas of major ingredient weight 0.1%;
As, in described auxiliary material, also contain the cryolite powder of major ingredient weight 1%;
As, described alumina-bearing material is one or both mixing in kaolin and coal gangue;
As, described carbonaceous material is Graphite Powder 99.
Embodiment 2
Stove prepurging coating for a kind of aluminium, is mixed by major ingredient and auxiliary material, and wherein, major ingredient is made up of alumina-bearing material and carbonaceous material, and the weight of alumina-bearing material accounts for 90% of major ingredient gross weight; Described auxiliary material comprises high temperature adhesive, the Mierocrystalline cellulose of major ingredient weight 6% and the defoamer of major ingredient weight 1% of major ingredient weight 8%.
Be more than the basic embodiment of the present embodiment, can on above basis, be improved further or limit:
As, in described auxiliary material, also contain the sanitas of major ingredient weight 1%;
As, in described auxiliary material, also contain the cryolite powder of major ingredient weight 3%;
As, described alumina-bearing material is one or both mixing in kaolin and coal gangue;
As, described carbonaceous material is Graphite Powder 99.
Embodiment 3
Stove prepurging coating for a kind of aluminium, is mixed by major ingredient and auxiliary material, and wherein, major ingredient is made up of alumina-bearing material and carbonaceous material, and the weight of alumina-bearing material accounts for 80% of major ingredient gross weight; Described auxiliary material comprises high temperature adhesive, the Mierocrystalline cellulose of major ingredient weight 3.5% and the defoamer of major ingredient weight 0.5% of major ingredient weight 4.5%.
Be more than the basic embodiment of the present embodiment, can on above basis, be improved further or limit:
As, in described auxiliary material, also contain the sanitas of major ingredient weight 0.6%;
As, in described auxiliary material, also contain the cryolite powder of major ingredient weight 2%;
As, described alumina-bearing material is one or both mixing in kaolin and coal gangue;
As, described carbonaceous material is Graphite Powder 99.
Claims (5)
1. a stove prepurging coating for aluminium, is characterized in that: mixed by major ingredient and auxiliary material, wherein, major ingredient is made up of alumina-bearing material and carbonaceous material, and the weight of alumina-bearing material accounts for the 70-90% of major ingredient gross weight; Described auxiliary material comprises high temperature adhesive, the Mierocrystalline cellulose of major ingredient weight 1-6% and the defoamer of major ingredient weight 0.1-1% of major ingredient weight 1-8%.
2. stove prepurging coating for a kind of aluminium according to claim 1, is characterized in that: the sanitas that also contains major ingredient weight 0.1-1% in described auxiliary material.
3. stove prepurging coating for a kind of aluminium according to claim 1 and 2, is characterized in that: the cryolite powder that also contains major ingredient weight 1-3% in described auxiliary material.
4. stove prepurging coating for a kind of aluminium according to claim 1, is characterized in that: described alumina-bearing material is one or both mixing in kaolin and coal gangue.
5. stove prepurging coating for a kind of aluminium according to claim 1, is characterized in that: described carbonaceous material is Graphite Powder 99.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201410165553.2A CN103992663B (en) | 2014-04-24 | 2014-04-24 | A kind of aluminum stove prepurging coating |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201410165553.2A CN103992663B (en) | 2014-04-24 | 2014-04-24 | A kind of aluminum stove prepurging coating |
Publications (2)
| Publication Number | Publication Date |
|---|---|
| CN103992663A true CN103992663A (en) | 2014-08-20 |
| CN103992663B CN103992663B (en) | 2016-08-24 |
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| Application Number | Title | Priority Date | Filing Date |
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| CN201410165553.2A Expired - Fee Related CN103992663B (en) | 2014-04-24 | 2014-04-24 | A kind of aluminum stove prepurging coating |
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Citations (6)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN1817973A (en) * | 2006-03-23 | 2006-08-16 | 武汉钢铁(集团)公司 | Coating against binding slags |
| CN101143794A (en) * | 2007-09-05 | 2008-03-19 | 攀枝花市银江金勇工贸有限责任公司 | Anti-sticking slag amorphous refractory material |
| CN102965474A (en) * | 2012-11-22 | 2013-03-13 | 河南省西保冶材集团有限公司 | Anti-slag agent for high temperature VD (Vaccum Distillation) furnace |
| CN103302279A (en) * | 2013-06-28 | 2013-09-18 | 攀钢集团攀枝花钢钒有限公司 | Anti-adhesive slag agent for tank mouth of semi-steel tank |
| CN103319187A (en) * | 2013-05-24 | 2013-09-25 | 霍山县新裕炉窑模具有限公司 | Crack-resistant fused-aluminum refractory castable and preparation method therefor |
| CN103667575A (en) * | 2013-10-18 | 2014-03-26 | 北京神雾环境能源科技集团股份有限公司 | Rotary hearth furnace bottom and rotary hearth furnace with same |
-
2014
- 2014-04-24 CN CN201410165553.2A patent/CN103992663B/en not_active Expired - Fee Related
Patent Citations (6)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN1817973A (en) * | 2006-03-23 | 2006-08-16 | 武汉钢铁(集团)公司 | Coating against binding slags |
| CN101143794A (en) * | 2007-09-05 | 2008-03-19 | 攀枝花市银江金勇工贸有限责任公司 | Anti-sticking slag amorphous refractory material |
| CN102965474A (en) * | 2012-11-22 | 2013-03-13 | 河南省西保冶材集团有限公司 | Anti-slag agent for high temperature VD (Vaccum Distillation) furnace |
| CN103319187A (en) * | 2013-05-24 | 2013-09-25 | 霍山县新裕炉窑模具有限公司 | Crack-resistant fused-aluminum refractory castable and preparation method therefor |
| CN103302279A (en) * | 2013-06-28 | 2013-09-18 | 攀钢集团攀枝花钢钒有限公司 | Anti-adhesive slag agent for tank mouth of semi-steel tank |
| CN103667575A (en) * | 2013-10-18 | 2014-03-26 | 北京神雾环境能源科技集团股份有限公司 | Rotary hearth furnace bottom and rotary hearth furnace with same |
Non-Patent Citations (3)
| Title |
|---|
| 刘培英等: "《再生铝生产与应用 第二版》", 30 June 2013, article "盐类精炼", pages: 124-125 * |
| 陈光等: "《新材料概论》", 30 April 2013, article "硅酸铝及刚玉质耐火材料", pages: 60-61 * |
| 高子忠: "《轻金属冶金学》", 31 October 1993, article "原炉混合炉", pages: 194-195 * |
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| CN103992663B (en) | 2016-08-24 |
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Inventor after: Chen Yuxing Inventor before: Wang Huizhi Inventor before: Yang Guowei |
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Effective date of registration: 20171031 Address after: 225000 Jiangsu city of Yangzhou province Gaoyou City Liuzhou Qiu Industrial Zone (Chen Zongbing village 1-3) Patentee after: YANGZHOU XINGFUGUO ELECTROMECHANICAL TECHNOLOGY CO.,LTD. Address before: 471000 Henan city of Luoyang province Yichuan County Chengguan Town winery Road No. 55 Patentee before: Wang Huizhi |
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