CN100542993C - A kind of refractory repairing mass with the carbonized high-titanium blast furnace slag preparation - Google Patents
A kind of refractory repairing mass with the carbonized high-titanium blast furnace slag preparation Download PDFInfo
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- CN100542993C CN100542993C CNB2007102024674A CN200710202467A CN100542993C CN 100542993 C CN100542993 C CN 100542993C CN B2007102024674 A CNB2007102024674 A CN B2007102024674A CN 200710202467 A CN200710202467 A CN 200710202467A CN 100542993 C CN100542993 C CN 100542993C
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Abstract
The present invention relates to a kind of refractory repairing mass that is used for metallurgical industrial furnace, particularly a kind of refractory repairing mass with the carbonized high-titanium blast furnace slag preparation, it is characterized in that: its prescription is by weight: 40～60 parts of magnesia aggregates, 10～40 parts of magnesia powders, 10～30 parts of carbonized high-titanium blast furnace slags, 3～5 parts of soft claies, 4～6 parts of silicon powders, 3～5 parts of wedding agents, 0.1～0.3 part of water reducer.The every performance index of refractory repairing mass of the present invention are suitable with magnesia mending material, have characteristics such as adhesive rate height, intensity height, long service life, can satisfy the metallurgical industrial furnace service requirements, solved the problem that high-titanium blast furnace slag is piled up, and, be a kind of green environmental protection technique for the recycling of high-titanium blast furnace slag provides a new thinking.
Description
Technical field
The invention belongs to technical field of refractory materials, a kind of refractory repairing mass that is used for metallurgical industrial furnace particularly is provided.
Background technology
Along with the fast development of the fast development of China's industrial economy, particularly metallurgical industry, the consumption of refractory materials is increasing, and China has become first big country of refractory materials production and consumption in the world, produces refractory materials per year more than 2,000 ten thousand tons.
At present, the fire-resistant characteristics of resources of China is: stock number is many, and reserves, basic reserves are few; Economic utilizability difference or the undetermined resource reserve of economic implications are many, and economic available resource reserve is few; Control and the resource reserve of inferring are many, and the resource reserve of verifying is few.Therefore, utilize fire-resistant resource, when making great efforts to delay the fire-resistant resource service time limit, also should make full use of the secondary resource that some other can be used as refractory materials, so just can make the refractory industry Sustainable development rationally.
Blast furnace slag is to smelt the industrial residue that emits in the pig iron process, according to TiO in the blast furnace slag
2The difference of content can be divided into ordinary blast slag (TiO
2＜10%) and high titanium stove slag (TiO
2〉=10%).Contain TiO in the steel climbing high slag
222%～24%, belong to high-titanium blast furnace slag.
Climb the steel high-titanium blast furnace slag and be subjected to the restriction of own characteristic, do not obtain in the past utilizing in 2000, accumulation has been stacked more than 5,000 ten thousand tons, take up an area of 40 surplus ten thousand m
2, and annual new increment is between 250～3,000,000 tons, it is very big to stack pressure, for solving this outstanding problem, at present it is used as in a large number material of construction, belongs to low value-added utilization.Meanwhile, the research work of high-titanium blast furnace slag high value added utilization is being carried out always, and separating titanium is one of approach of high value added utilization from high-titanium blast furnace slag.
The technical scheme of separating titanium is a lot of from high-titanium blast furnace slag, and comparatively one of ideal scheme is a high temperature cabonization---the low temperature chlorination partition method.Its technology is summarized as: under higher temperature to the TiO in the slag
2Carry out carbonization, make it to change into titanium carbide, utilize the characteristic of titanium carbide that it is carried out the low temperature selective chlorination again, make titanium carbide be converted into TiCl
4, thick TiCl
4Obtain refining TiCl through removing vanadium
4, TiCl
4Be the raw material of producing chloride process titanium dioxide, and chloride residue can directly or be used for making material of construction after the modification, reach the purpose of comprehensive reutilization blast furnace slag.We are referred to as carbonized high-titanium blast furnace slag high-titanium blast furnace slag behind the high temperature cabonization, be the intermediates of above-mentioned technology, because chloridization process has requirement to the granularity of carbonized high-titanium blast furnace slag, the undesirable slag of part granularity just can not be utilized effectively, result of study shows, carbonized high-titanium blast furnace slag has 1700 ℃ of higher refractoriness (〉) and plasticity preferably, be fit to do refractory raw material.
Summary of the invention
The objective of the invention is at above-mentioned situation, add carbonized high-titanium blast furnace slag as much as possible in the magnesia mending material that on present metallurgical industrial furnace, generally uses, it is suitable with magnesia mending material to produce every performance index, can satisfy the mending material of metallurgical industrial furnace service requirements, this mending material has characteristics such as adhesive rate height, intensity height, long service life.
The needed starting material of mending material of the present invention comprise: 1. magnesia (comprising aggregate, fine powder); 2. carbonized high-titanium blast furnace slag; 3. soft clay; 4. silicon powder; 5. wedding agent; 6. water reducer.By weight, its prescription is as follows:
40～60 parts of magnesia aggregates, 10～40 parts of magnesia powders, 10～30 parts of carbonized high-titanium blast furnace slags, 3～5 parts of soft claies, 4～6 parts of silicon powders, 3～5 parts of wedding agents, 0.1～0.3 part of water reducer.
Wherein said wedding agent can be a Sodium hexametaphosphate 99, also can be refractory materialss such as trisodium phosphate, tripoly phosphate sodium STPP, super sodium polyphosphate wedding agents commonly used, described water reducer can be a tripoly phosphate sodium STPP, also can be refractory materialss such as wooden calcium sulfonate, NF, NNO water reducers commonly used.
For the fire performance that guarantees mending material good, as follows to the granularity requirements of raw material:
Magnesia aggregate≤5mm, magnesia powder≤0.088mm, carbonized high-titanium blast furnace slag≤0.088mm, soft clay≤0.074mm, silicon powder reach 2 grades of index requests; Specific surface area reaches 18m
2G
-1The pH value is about 7.5.If granularity is excessive, can influence the intensity of mending material.
Performance requriements to raw material is as follows:
Magnesia: volume density 〉=3.2g/cm
3If the too little meeting of volume density influence the work-ing life of mending material.
Soft clay: plasticity index 〉=3.5 ,≤16 igloss %, refractoriness, 〉=1670 ℃, if do not reach intensity, adhesive rate and the work-ing life that requirement can influence mending material.
The production stage of mending material of the present invention is: 1. be ready to various starting material by above-mentioned requirements; 2. determine the once gross weight of production according to the throughput of whipping device, then by the good various raw-material consumptions of above-mentioned prescription weighing; 3. earlier tripoly phosphate sodium STPP or other water reducer are mixed with soft clay, then all the other raw materials are all added in the whipping device, be stirred well to evenly, check, pack and get final product.
Refractory repairing mass using method of the present invention: semi dry gunning, quantity is fixed according to practical situation, and maximum ga(u)ge is no more than 50mm.
The all raw material of refractory products of the present invention can directly have been bought from market, does not need to do special processing, but must satisfy the every performance index in table 1, the table 2, the requirement of size indicator.By the finished product that above-mentioned requirements prepares, its physical performance index can reach the regulation in the table 1 fully.
Table 1 mending material end properties index
Below by embodiment the present invention is done into～goes on foot detailed description, be limitation of the present invention but should not be construed as.
Embodiment
The various raw-material performance index of following examples are as follows:
The various raw-material performance index of table 2
The size indicator of each raw material is as follows:
The various raw-material size indicators of table 3
Annotate: *---45 μ m tail over and are not more than 3%; Specific surface area reaches 18m
2G
-1The pH value is about 7.5.
Embodiment 1～embodiment 3
Be ready to various starting material by the requirement in table 1, the table 2; Determine the once gross weight of production according to the throughput of whipping device, prescription according to table 3 takes by weighing raw material, earlier tripoly phosphate sodium STPP and soft clay are mixed, then all the other raw materials are all added in the whipping device, fully stir (3～5 minutes) to evenly promptly getting refractory repairing mass of the present invention.
General description of construction: the mending material of present embodiment preparation is applicable to semi dry gunning, and quantity is fixed according to practical situation, and maximum ga(u)ge is no more than 50mm.The mending material performance sees Table 4.
Table 4
The above results shows add 10～30% carbonized high-titanium height in the magnesia mending material that generally uses on present metallurgical industrial furnace Slag, it is suitable with magnesia mending material to produce property indices, and this mending material has adhesive rate height, intensity height, service life The characteristics such as length can satisfy the metallurgical industrial furnace instructions for use. Both having solved the problem that high-titanium blast furnace slag is piled up, is again high titanium blast furnace The recycling of slag provides a new thinking, has improved its added value.
Claims (5)
1, the purposes of carbonized high-titanium blast furnace slag in the preparation refractory repairing mass is characterized in that preparing refractory repairing mass by following materials of weight proportions:
40～60 parts of magnesia aggregates, 10～40 parts of magnesia powders, 10～30 parts of carbonized high-titanium blast furnace slags, 3～5 parts of soft claies, 4～6 parts of silicon powders, 3～5 parts of wedding agents, 0.1～0.3 part of water reducer.
2, a kind of refractory repairing mass with the carbonized high-titanium blast furnace slag preparation, it is characterized in that: its weight proportion is as follows:
40～60 parts of magnesia aggregates, 10～40 parts of magnesia powders, 10～30 parts of carbonized high-titanium blast furnace slags, 3～5 parts of soft claies, 4～6 parts of silicon powders, 3～5 parts of wedding agents, 0.1～0.3 part of water reducer.
3, the refractory repairing mass with the carbonized high-titanium blast furnace slag preparation according to claim 2, it is characterized in that: described wedding agent is Sodium hexametaphosphate 99, trisodium phosphate, tripoly phosphate sodium STPP or super sodium polyphosphate; Described water reducer is tripoly phosphate sodium STPP, wooden calcium sulfonate, NF or NNO.
4, the refractory repairing mass with the carbonized high-titanium blast furnace slag preparation according to claim 3 is characterized in that:
Magnesia aggregate granularity≤5mm, magnesia powder granularity≤0.088mm, carbonized high-titanium blast furnace slag granularity≤0.088mm, soft clay≤0.074mm, silicon powder reach 2 grades of index requests.
5, the preparation method of the described refractory repairing mass with carbonized high-titanium blast furnace slag preparation of claim 2, may further comprise the steps: by the good various starting material of prescription weighing, earlier water reducer and soft clay are mixed, all add all the other raw materials in the whipping device then, be stirred well to evenly, check, packing get final product.
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| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CNB2007102024674A CN100542993C (en) | 2007-11-12 | 2007-11-12 | A kind of refractory repairing mass with the carbonized high-titanium blast furnace slag preparation |
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|---|---|---|---|
| CNB2007102024674A CN100542993C (en) | 2007-11-12 | 2007-11-12 | A kind of refractory repairing mass with the carbonized high-titanium blast furnace slag preparation |
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| CN101182227A CN101182227A (en) | 2008-05-21 |
| CN100542993C true CN100542993C (en) | 2009-09-23 |
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| CN103159485A (en) * | 2011-12-14 | 2013-06-19 | 济源市恒达耐材有限公司 | Refractory fettling material |
Citations (2)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN1355151A (en) * | 2000-11-28 | 2002-06-26 | 吴峰 | Air-permeable material for repairing furnace |
| CN1371884A (en) * | 2001-02-22 | 2002-10-02 | 吴峰 | Material for repairing air brick of steel ladle |
-
2007
- 2007-11-12 CN CNB2007102024674A patent/CN100542993C/en not_active Expired - Fee Related
Patent Citations (2)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN1355151A (en) * | 2000-11-28 | 2002-06-26 | 吴峰 | Air-permeable material for repairing furnace |
| CN1371884A (en) * | 2001-02-22 | 2002-10-02 | 吴峰 | Material for repairing air brick of steel ladle |
Non-Patent Citations (4)
| Title |
|---|
| 转炉镁碳补炉料的研制与应用. 潘玲.鞍钢技术，第1998年第11期. 1998 |
| 转炉镁碳补炉料的研制与应用. 潘玲.鞍钢技术，第1998年第11期. 1998 * |
| 采用攀钢高炉渣制取碳化钛的试验研究. 冯成建.矿产综合利用，第1997年第6期. 1997 |
| 采用攀钢高炉渣制取碳化钛的试验研究. 冯成建.矿产综合利用，第1997年第6期. 1997 * |
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