CN101062829A - Method for preparing mineral fiber by using slag water quenching - Google Patents
Method for preparing mineral fiber by using slag water quenching Download PDFInfo
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- CN101062829A CN101062829A CN 200710022947 CN200710022947A CN101062829A CN 101062829 A CN101062829 A CN 101062829A CN 200710022947 CN200710022947 CN 200710022947 CN 200710022947 A CN200710022947 A CN 200710022947A CN 101062829 A CN101062829 A CN 101062829A
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- granulated slag
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Abstract
The invention discloses a preparing method of mineral fiber with water-hardened slag, which comprises the following steps: 1, allocating raw material with mass ratio as 65-85% water-hardened slag, 5-25% regulator and 3-10% adhensive; stirring the raw material evenly; forming pressed material; 2, pressing the pressed material to stereo wafer with block press; getting stereo wafer; comprising prism wafer, cylindrical wafer and sphere wafer; 3, putting the wafer into cupola; melting; blowing to mineral fiber through fiber machine; controlling the melting temperature at 1450-1550 deg. c; controlling the fiber temperature at 1250-1450 deg. c. This invention possesses good mixing uniformity, which is fit for improving technological condition of fiber.
Description
Technical field
The present invention relates to the mineral fibre preparation method, relate in particular to a kind of method of utilizing water-granulated slag to produce mineral fibre.
Background technology
The slag overwhelming majority that present iron-smelting blast furnace is discharged is the water-granulated slag after shrend.Because: one, slag is widely used, wherein most of as make cement and or one of concrete raw material, slag after the shrend is the pulverulent material form, be well suited for the necessary requirement in small, broken bits of cement or concrete material, saved the technological process that original bulk slag must be in small, broken bits like this, user-friendly, improved scoriaceous economic worth; They are two years old, the ironmaking steel blast furnace production efficiency of existing Steel Plant is all higher, bed drain purge is big, can not be as in the past, allow and occupy the big bulk slagheap in space and be placed on a place and make its slowly naturally cooling, adopt shrend can make its quick cooling on the one hand, one side powdered water-granulated slag takes up space little, is more conducive to timely discharge.So the slag that present most Steel Plant sold all is a water-granulated slag.
Be used as the mineral of making mineral fibre and mainly contain rock and slag, rock mainly is basalt and brightness ball rock etc.When system was fine, it was made fine cost and will be higher than slag to make raw material with rock, so slag is one of main raw material of making mineral fibre.Consider from manufacturing cost, China mainly uses smelting furnace to come the fusion mineral when making mineral fibre at present, the mineral of putting into smelting furnace must be with bulk, mineral in small, broken bits, for example water-granulated slag be can not be in smelting furnace fused, so the slag after the shrend no longer is used as the raw material of operating mine fibres.And present last bulk slag very little (not having substantially), this makes the making of mineral fibre lose important material source, thereby influences the more massive production of mineral fibre, is difficult to satisfy the demand to mineral fibre that market increases day by day.
Summary of the invention
The objective of the invention is to overcome above-mentioned the deficiencies in the prior art, provide a kind of and can be adapted at a kind of method of utilizing water-granulated slag to produce mineral fibre of fused in the smelting furnace.It is realized by following technical scheme:
Its key step is as follows:
1) raw material configuration, raw material consists predominantly of three constituents: water-granulated slag, conditioning agent and, binding agent.Described conditioning agent comprises clay, silica, flyash, rock powder and magnesite soil.Described binding agent comprises cement and unslaked lime.Concrete any conditioning agent or binding agent, their weight percent of occupying in raw material used is different different because of mineral material acidity quotient.The per-cent that above-mentioned generally speaking material accounts for the raw material gross weight is as follows:
Water-granulated slag 65～85%
Conditioning agent 5～25%
Binding agent 3～10%
With each the material uniform mixing that configures, form the compacting material.
2) briquetting is pressed into three-dimensional briquetting with briquetting press with above-mentioned compacting material.Described three-dimensional briquetting comprises prism briquetting, right cylinder briquetting and spheroid briquetting.
3) fusing system is fine, above-mentioned briquetting is put into smelting furnace melt, and fusing is blow molded into mineral fibre after make fine machine, and temperature of fusion is controlled at 1450～1550 ℃, makes fine temperature and is controlled at 1250～1450 ℃.
The invention has the beneficial effects as follows: 1) opened up the new raw material sources of operating mine fibres, sought a new approach that utilizes for water-granulated slag simultaneously; 2) utilize the little characteristics of water-granulated slag granularity, the mixing uniformity of the admixtion that makes it and add is good, in smelting furnace during fusion, the chemical ingredients of melt and the homogeneity of mineral composition helped improving into fine processing condition when the chemical ingredients of melt and the homogeneity of mineral composition were better than big block slag and admixtion fusion.
Embodiment
Below in conjunction with specific embodiment the present invention and advantage thereof are described further.
Embodiment 1
1 ton of configuration raw material, test its acidity quotient M, side gets M=1.02, disposes the per-cent of the shared raw material gross weight of each material according to this acidity quotient: water-granulated slag 72%, the 0.72T water-granulated slag of promptly weighing, conditioning agent is selected clay for use in the admixtion, and binding agent is selected cement for use, and they press 12% and 3% configuration of raw material gross weight respectively, each 0.12T of clay and cement and 0.03T promptly weigh respectively, above-mentioned each material is sent into stirrer mix, make its thorough mixing, become the compacting material that is evenly distributed.To suppress material with block-making machine and all be pressed into the spheroid briquetting that diameter is 40～150mm, the size of briquetting is decided according to the diameter of smelting furnace.Again this briquetting is sent into fusion in the smelting furnace with travelling belt, temperature of fusion is controlled at 1550 ℃, and solution is blow molded into mineral fibre by the fine machine of system, makes fine temperature and is controlled at 1420 ℃.
Embodiment 2
1 ton of configuration raw material, test its acidity quotient M, side gets M=1.06, dispose the per-cent of the shared raw material gross weight of each material according to this acidity quotient: water-granulated slag 75%, the 0.75T water-granulated slag of promptly weighing, conditioning agent is selected flyash for use in the admixtion, binding agent is selected unslaked lime and cement for use, they press 20%, 4% and 1% configuration of raw material gross weight respectively, flyash 0.2T, unslaked lime 0.04T, cement 0.01T promptly weigh respectively, above-mentioned each material is sent into stirrer mix, make its thorough mixing, become the compacting material that is evenly distributed.Becoming the compacting material all to be pressed into diameter this with block-making machine is that 40～150mm, height are the right cylinder briquetting of 40～100mm.With travelling belt this briquetting is sent into fusion in the smelting furnace again, temperature of fusion is controlled at 1400 ℃, and solution is blow molded into mineral fibre by the fine machine of system, and the system fibre is controlled at 1420 ℃.
Embodiment 3
2 tons of configuration raw materials, test its acidity quotient M, side gets M=0.88, dispose the per-cent of the shared raw material gross weight of each material according to this acidity quotient: water-granulated slag 65%, the 1.3T water-granulated slag of promptly weighing, conditioning agent is selected silica for use in the admixtion, binding agent is selected unslaked lime and magnesite soil for use, they press 17% and 8%, 10% configuration of raw material gross weight respectively, silica 0.34T, unslaked lime 0.20T, magnesite soil 0.16T promptly weigh respectively, above-mentioned each material is sent into stirrer mix, make its thorough mixing, become the compacting material that is evenly distributed.Become the compacting material all to be pressed into the cube edge cylinder briquetting that rib length is 40～200mm this with block-making machine.With travelling belt this briquetting is sent into fusion in the smelting furnace again, temperature of fusion is controlled at 1400 ℃, and solution is blow molded into mineral fibre by the fine machine of system, and the system fibre is controlled at 1250 ℃.
Embodiment 4
2 tons of configuration raw materials, test its acidity quotient M, side gets M=1.12, dispose the per-cent of the shared raw material gross weight of each material according to this acidity quotient: water-granulated slag 85%, the 1.7T ton water-granulated slag of promptly weighing, conditioning agent is selected the rock powder for use in the admixtion, binding agent is selected unslaked lime for use, they press 5% and 10% configuration of raw material gross weight respectively, rock powder 0.10T, unslaked lime 0.20T promptly weigh respectively, above-mentioned each material is sent into stirrer to mix? hour, make its thorough mixing, become the compacting material that is evenly distributed.Become the compacting material all to be pressed into the spheroid briquetting that diameter is 40～150mm this with block-making machine.With travelling belt this briquetting is sent into fusion in the smelting furnace again, temperature of fusion is controlled at 1450 ℃, and solution is blow molded into mineral fibre by the fine machine of system, and the system fibre is controlled at 1300 ℃.
The mean diameter of employed its granularity of water-granulated slag is about φ 0.5～2.0mm in the foregoing description, they and admixtion pass through the abundant stirring of certain hour, admixtion can be evenly distributed in the water-granulated slag, the bulk slag can not reach so uniform distribution in this way, so its quality height of mineral fibre that the mineral fibre that adopts the inventive method to make is produced than existing employing bulk slag.
Claims (4)
1. a method of utilizing water-granulated slag to produce mineral fibre comprises the following steps:
1) raw material configuration, press following each material of per-cent configuration of raw material gross weight:
Water-granulated slag 65～85%
Conditioning agent 5～25%
Binding agent 3～10%
With each the material uniform mixing that configures, form the compacting material;
2) briquetting is pressed into three-dimensional briquetting with briquetting press with above-mentioned compacting material;
3) fusing system is fine, above-mentioned briquetting is put into smelting furnace melt, and fusing is blow molded into mineral fibre after make fine machine, and temperature of fusion is controlled at 1400～1550 ℃, makes fine temperature and is controlled at 1250～1420 ℃.
2. a kind of method of utilizing water-granulated slag to produce mineral fibre according to claim 1 is characterized in that described conditioning agent comprises clay, silica, flyash, rock powder and magnesite soil.
3. a kind of method of utilizing water-granulated slag to produce mineral fibre according to claim 1 is characterized in that described binding agent comprises cement, unslaked lime and magnesite soil.
4. a kind of method of utilizing water-granulated slag to produce mineral fibre according to claim 1 is characterized in that described three-dimensional briquetting comprises prism briquetting, right cylinder briquetting and spheroid briquetting.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN 200710022947 CN101062829A (en) | 2007-05-25 | 2007-05-25 | Method for preparing mineral fiber by using slag water quenching |
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| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN 200710022947 CN101062829A (en) | 2007-05-25 | 2007-05-25 | Method for preparing mineral fiber by using slag water quenching |
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| CN101062829A true CN101062829A (en) | 2007-10-31 |
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Cited By (5)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN102583996A (en) * | 2012-02-24 | 2012-07-18 | 陈浩 | Method for manufacturing rock wool by iron ore tailings |
| CN104402211A (en) * | 2014-10-30 | 2015-03-11 | 湖州吴兴道场城乡建设发展有限公司 | Hydrophobic mineral wool |
| CN105777002A (en) * | 2016-03-08 | 2016-07-20 | 杜浩 | High-performance synthetic slag block material and preparation method thereof |
| CN104402211B (en) * | 2014-10-30 | 2017-01-04 | 湖州吴兴道场城乡建设发展有限公司 | A kind of hydrophobic ore deposit rock wool |
| CN108275884A (en) * | 2018-01-12 | 2018-07-13 | 江苏巨盈节能环保科技有限公司 | A kind of method that blast furnace returns slag production automobile decorative panel |
-
2007
- 2007-05-25 CN CN 200710022947 patent/CN101062829A/en active Pending
Cited By (5)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN102583996A (en) * | 2012-02-24 | 2012-07-18 | 陈浩 | Method for manufacturing rock wool by iron ore tailings |
| CN104402211A (en) * | 2014-10-30 | 2015-03-11 | 湖州吴兴道场城乡建设发展有限公司 | Hydrophobic mineral wool |
| CN104402211B (en) * | 2014-10-30 | 2017-01-04 | 湖州吴兴道场城乡建设发展有限公司 | A kind of hydrophobic ore deposit rock wool |
| CN105777002A (en) * | 2016-03-08 | 2016-07-20 | 杜浩 | High-performance synthetic slag block material and preparation method thereof |
| CN108275884A (en) * | 2018-01-12 | 2018-07-13 | 江苏巨盈节能环保科技有限公司 | A kind of method that blast furnace returns slag production automobile decorative panel |
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Open date: 20071031 |