CN102206087B - Sliding plate working face fireproofing material composition using waste sliding plate material - Google Patents
Sliding plate working face fireproofing material composition using waste sliding plate material Download PDFInfo
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- CN102206087B CN102206087B CN 201110089061 CN201110089061A CN102206087B CN 102206087 B CN102206087 B CN 102206087B CN 201110089061 CN201110089061 CN 201110089061 CN 201110089061 A CN201110089061 A CN 201110089061A CN 102206087 B CN102206087 B CN 102206087B
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- waste sliding
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Abstract
The invention relates to a slide gate nozzle sliding plate fireproofing material for waste steelmaking and in particular relates to a sliding plate working face fireproofing material composition using a waste sliding plate material. The sliding plate working face fireproofing material composition using the waste sliding plate material comprises the following components by weight percent: 30%-40% of waste sliding plate powder, 36%-60% of corundum, 2.4%-3.6% of alumina micro powder, 1.6%-2.4% of phosphorous graphite and 1.7%-2.6% of additive, wherein the chemical components of the waste sliding plate powder comprise 80%-93.4% of Al2O3, 9.51%-14% of SiO2 and less than 1% of Fe2O3. According to the invention, the waste sliding plate powder is used as a main raw material for circulation and reuse, thus the loss on mineral resources are reduced as compared with the fact that tabular corundum and super alumina ore are directly used in large quantities in the same industry.
Description
Technical field
The present invention relates to a kind of discarded steel-making sliding gate slide board refractory materials, relate in particular to a kind of slide plate working face refractory assemblies that adopts the waste sliding material.
Background technology
China's output of steel has reached annual about 500,000,000 tons at present, wherein uses in a large number slide plates in the production process on ladle and the continuous casting tundish.After slide plate repeatedly uses, because borehole enlargement and slipping plane damage go out of use, process as solid refuse.This processing mode has not only been wasted resource, and clears up and serious environment pollution owing to aluminium carbonaceous slide plate is difficult to nature.Therefore, carrying out the research of slide plate cycling and reutilization technology, not only can reduce cost, and profound significance is also being arranged aspect the resource comprehensive of industrial solid castoff, is the hot subject of studying at present.
Summary of the invention
In order to overcome the deficiencies in the prior art, an object of the present invention is to provide a kind of slide plate working face refractory assemblies that adopts the waste sliding material, said composition has reduced cost in the situation of ensuring the quality of products.
In order to realize above-mentioned purpose, the present invention has adopted following technical scheme:
A kind of slide plate working face refractory assemblies that adopts the waste sliding material, said composition is made of following component by weight percentage: waste sliding powder 30% ~ 40%, corundum 36%～60%, alumina powder 2.4%-3.6%, phosphorus matter graphite 1.6%～2.4%, additive 1.7%～2.6%; The chemical ingredients Al of described waste sliding powder
2O
3Be 80%～93.4%, SiO
2Content is 9.51%～14%, Fe
2O
3Content is below 1%.
As preferably, above-mentioned waste sliding powder is prepared by following steps: 1. useless slide plate powder is processed except ferromanganese, 2. the silicic acid bacillus carries out desiliconization to the waste sliding powder, and 3. aspergillus tubigensis is carried out deferrization to the waste sliding powder, 4. is washed to neutral oven dry.
1. adopt permanent magnetic roll type strong magnetic ore separation machine and pulsating high gradient magnetic separator coupling as preferred again, above-mentioned step, (main component is Fe to reclaim ferromanganese
2O
3And MnO).
As preferred again, above-mentioned step 2. the silicic acid bacillus select colloid bacillus (
Bacillus mucitaginosus)
As preferred again, above-mentioned step 3. aspergillus tubigensis select the AN bacterium (
Aspergillus niger).
As preferably, above-mentioned additive is metallic aluminium powder.
Production method of the present invention is to take by weighing each raw material by proportioning, mixes, and through the mixing pug that obtains, then extrusion forming is at 200 ± 10 ℃ of lower dry 40 h.This product apparent porosity 4～10%, cold crushing strength 100-140MPa, high temperature break resistant intensity 14-16 MPa, the performance index such as its oxidation-resistance, scour resistance and heat-shock resistance all reach excellent or good.The present invention adopts the waste sliding powder as the main raw material of cycling and reutilization, compares with the high grade bauxite ore deposit with directly using in a large number plate diamond spars in the same industry, has reduced the loss to Mineral resources.
Embodiment
The present invention is described further below in conjunction with specific embodiment.
Embodiment 1
The waste sliding powder stock is carried out ball mill pulverizing, adopt permanent magnetic roll type strong magnetic ore separation machine and pulsating high gradient magnetic separator coupling, reclaim ferromanganese.In the biological filter with whipping appts, add 1 t by force useless slide plate powder and 10 m of magnetic treatment
3Silicic acid bacillus solution.22 ℃ without having carried out 5 under the conditions for sterilization round the clock, its solid-to-liquid ratio is 1: 5, extraction time is 5 round the clock, adds corresponding bio-culture solution.Final waste sliding powder chemistry composition Al
2O
3Bring up to 93.4%, SiO
2Content to 9.51%, alumina silica ratio reaches 8.0.Then in the biological filter with whipping appts, add useless slide plate powder and 800 dm that desiliconization was processed
3Dense aspergillus tubigensis solution.22 ℃ without under the conditions for sterilization, add water 10 m
3, cold soaking 10 round the clock, and is rear extremely neutral with tap water flushing sample ore, oven dry.Soak molten front and back chemical analysis results and show Fe
2O
3Reduced rate is up to 30.7%, and minimum is 14.5%.
The prescription of slide plate is that the working face waste sliding is 40%, and corundum is 56%, alumina powder 2.4%, and phosphorus matter graphite is 1.6%, additive is 1.7%; The non-working surface waste sliding is 60%, and high grade bauxite is 55%, and corundum is 9%, and graphite is 1.2%, and wedding agent is 3.5%, and additive is 1.5%.Take by weighing each raw material by proportioning during production method, mix, through the mixing pug that obtains, then extrusion forming is at 200 ± 10 ℃ of lower dry 40 h.This product apparent porosity 10 %, cold crushing strength 120MPa, high temperature break resistant intensity 14 MPa, the performance index such as its oxidation-resistance, scour resistance and heat-shock resistance all reach excellent or good.
Embodiment 2
The waste sliding powder stock is carried out ball mill pulverizing, adopt permanent magnetic roll type strong magnetic ore separation machine and pulsating high gradient magnetic separator coupling, reclaim ferromanganese.In the biological filter with whipping appts, add 1 t by force useless slide plate powder and 10 m of magnetic treatment
3Silicic acid bacillus solution.22 ℃ without having carried out 5 under the conditions for sterilization round the clock, its solid-to-liquid ratio is 1: 5, extraction time is 5 round the clock.Embodiment 2 difference from Example 1 are not add bio-culture solution.Final waste sliding powder chemistry composition Al
2O
3Bring up to 80.0%, SiO
2Content to 14%, alumina silica ratio reaches 7.09.
Aspergillus tubigensis is carried out prescription and the production of deferrization and cycling and reutilization to the waste sliding powder, identical with embodiment 1, the finished product apparent porosity 10%, cold crushing strength 120MPa, high temperature break resistant intensity 15MPa, the performance index such as its oxidation-resistance, scour resistance and heat-shock resistance all reach excellent or good.
Embodiment 3
The strong magnetic coupling of the strong magnetic of permanent magnetic roll type and pulsating high gradient is processed useless slide plate powder deironing, and the silicic acid bacillus carries out prescription and the production of desiliconization and cycling and reutilization to the waste sliding powder, and is identical with embodiment 1.When difference from Example 1 is that aspergillus tubigensis is carried out deferrization to the waste sliding powder, add water 20 m
3, cold soaking 13 round the clock, and is rear extremely neutral with tap water flushing sample ore, oven dry.Soak molten front and back chemical analysis results and show Fe
2O
3Reduced rate is up to 44.8%, and minimum is 16. 0%.
This product apparent porosity 10%, cold crushing strength 130MPa, high temperature break resistant intensity 15 MPa, the performance index such as its oxidation-resistance, scour resistance and heat-shock resistance all reach excellent or good.
Embodiment 4
In first three step, identical with embodiment 1, difference is that prescription is that the working face waste sliding is 35%, and corundum is 59%, alumina powder 3.6%, and phosphorus matter graphite is 2.4%, additive is 2.6%; The non-working surface waste sliding is 35%, and high grade bauxite is 54%, and corundum is 9%, and graphite is 1.2%, and wedding agent is 4%, and additive is 1.5%.Take by weighing each raw material by proportioning during production method, mix, through the mixing pug that obtains, then extrusion forming is at 200 ± 10 ℃ of lower dry 40 h.This product apparent porosity 10%, cold crushing strength 140MPa, high temperature break resistant intensity 16 MPa, the performance index such as its oxidation-resistance, scour resistance and heat-shock resistance all reach excellent or good.
Claims (6)
1. slide plate working face refractory assemblies that adopts the waste sliding material, it is characterized in that said composition is made of following component by weight percentage: waste sliding powder 30% ~ 40%, corundum 36%～60%, alumina powder 2.4%-3.6%, phosphorus matter graphite 1.6%～2.4%, additive 1.7%～2.6%, the summation of each above-mentioned component are 100%; The chemical ingredients Al of described waste sliding powder
2O
3Be 80%～93.4%, SiO
2Content is 9.51%～14%, Fe
2O
3Content is below 1%, and each composition total amount of above-mentioned waste sliding powder is 100%.
2. a kind of slide plate working face refractory assemblies that adopts the waste sliding material according to claim 1, it is characterized in that described waste sliding powder is prepared by following steps: 1. useless slide plate powder is processed except ferromanganese, 2. the silicic acid bacillus carries out desiliconization to the waste sliding powder, 3. aspergillus tubigensis is carried out deferrization to the waste sliding powder, 4. is washed to neutral oven dry.
3. a kind of slide plate working face refractory assemblies that adopts the waste sliding material according to claim 2, it is characterized in that: 1. step adopts permanent magnetic roll type strong magnetic ore separation machine and pulsating high gradient magnetic separator coupling, reclaims ferromanganese.
4. a kind of slide plate working face refractory assemblies that adopts the waste sliding material according to claim 2 is characterized in that: step 2. the silicic acid bacillus select colloid bacillus (
Bacillus mucilaginosus)
5. a kind of slide plate working face refractory assemblies that adopts the waste sliding material according to claim 2 is characterized in that: step 3. aspergillus tubigensis select the AN bacterium (
Aspergillus niger).
6. a kind of slide plate working face refractory assemblies that adopts the waste sliding material according to claim 1, it is characterized in that: additive is metallic aluminium powder.
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| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN 201110089061 CN102206087B (en) | 2011-04-11 | 2011-04-11 | Sliding plate working face fireproofing material composition using waste sliding plate material |
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|---|---|---|---|
| CN 201110089061 CN102206087B (en) | 2011-04-11 | 2011-04-11 | Sliding plate working face fireproofing material composition using waste sliding plate material |
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| CN102206087A CN102206087A (en) | 2011-10-05 |
| CN102206087B true CN102206087B (en) | 2013-01-02 |
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| Publication number | Priority date | Publication date | Assignee | Title |
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| CN103253948B (en) * | 2013-05-13 | 2015-02-04 | 德清县力拓炉料有限公司 | Method for preparing dry-ramming material for metallurgical intermediate frequency furnace |
| CN103253950B (en) * | 2013-05-13 | 2014-11-26 | 德清县力拓炉料有限公司 | Dry-ramming material for metallurgical intermediate frequency furnace |
| CN103253947B (en) * | 2013-05-13 | 2014-08-20 | 德清县力拓炉料有限公司 | Method for preparing furnace lining of metallurgical intermediate frequency furnace |
| CN106007748B (en) * | 2016-05-18 | 2018-12-18 | 湖南湘钢瑞泰科技有限公司 | A kind of unburned preparation process for exempting to soak slide plate |
| CN107586121A (en) * | 2017-08-31 | 2018-01-16 | 云南濮耐昆钢高温材料有限公司 | A kind of compound collector nozzle of ladle and preparation method thereof |
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| CN1197827C (en) * | 2001-08-28 | 2005-04-20 | 宝山钢铁股份有限公司 | Burnt aluminum-carbon brick for torpedo hot metal mixer car and mfg. method thereof |
| CN101538637B (en) * | 2008-03-21 | 2010-12-01 | 宝山钢铁股份有限公司 | Molten iron demanganizing agent for silicon steel and manufacturing method thereof |
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