CN104692427B - A kind of Brown Alundum smelting process - Google Patents
A kind of Brown Alundum smelting process Download PDFInfo
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- CN104692427B CN104692427B CN201510069454.9A CN201510069454A CN104692427B CN 104692427 B CN104692427 B CN 104692427B CN 201510069454 A CN201510069454 A CN 201510069454A CN 104692427 B CN104692427 B CN 104692427B
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- brown alundum
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- Y—GENERAL TAGGING OF NEW TECHNOLOGICAL DEVELOPMENTS; GENERAL TAGGING OF CROSS-SECTIONAL TECHNOLOGIES SPANNING OVER SEVERAL SECTIONS OF THE IPC; TECHNICAL SUBJECTS COVERED BY FORMER USPC CROSS-REFERENCE ART COLLECTIONS [XRACs] AND DIGESTS
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Abstract
A kind of Brown Alundum smelting process being related to Brown Alundum field of smelting, described technique using first by Brown Alundum smelting dust-removing powder be added in hot water, add 0.05 0.3 parts of concentrated sulphuric acid and carry out washing and go acid treatment, then add after alumdum stirs and make granule materials, again the granule materials after dehydration are delivered in blending bunker and uniformly mix with coke and iron filings, carry out successively charging reaction smelting and refine finally by electric smelting furnace, and prepared Brown Alundum finished product after checking, cool down, be classified, crush and sieving；Described technique can be smelted dust-removing powder using Brown Alundum and be produced smelting Brown Alundum for raw material, and this not only effectively reduces the production cost of enterprise, but also solves corundum environmental issue accordingly.
Description
【Technical field】
The present invention relates to Brown Alundum field of smelting, especially relate to one kind and smelt dust-removing powder to smelt for raw material with Brown Alundum
The Brown Alundum smelting process of Brown Alundum.
【Background technology】
Known, Brown Alundum is with bauxite, iron filings and coke as primary raw material, and through high melt in electric arc furnace
The sepia Alundum made, because it has, good toughness, fusing point be high, corrosion-resistant, linear expansion coefficient is low and grinding performance
Good the features such as, therefore often select Brown Alundum crushing and screening and material processed, then make and be suitable to process the higher metal of grinding anti-tensile,
As the grinding tool of various general steel, malleable cast iron, carbon steel and hard bronze etc., Brown Alundum can also be used to manufacture high-grade fire resisting simultaneously
Material；On the other hand, Brown Alundum smelt dust-removing powder, that is, the dust collection powder being commonly called as refer in Brown Alundum smelting process collect ultra-fine
Dust material, this material is mainly made up of the mixing of bauxite powder, carbon dust, iron filings and clay powder, due to this material and Brown Alundum smelting
Be smelt condition difference larger, therefore often by Brown Alundum processing enterprise as waste dump；However, the raw material aluminum smelted due to Brown Alundum
Alumina belongs to non-renewable resources, and its purchase cost is very high, and the dust-removing powder of bulk deposition not only can affect environmental protection, also can cause
The serious wasting of resources, and be correspondingly improved the production cost of enterprise, therefore, how will be big to fine size, impurity, main become
Part for aluminium sesquioxide, silicon dioxide, iron sesquioxide, titanium dioxide, calcium oxide and coke powder the application of smelting dust-removing powder
Just become one of important subject during Brown Alundum is smelted in manufacturing Brown Alundum.
【Content of the invention】
In order to overcome the shortcomings of in background technology, the invention discloses a kind of Brown Alundum smelting process, described technique energy
Enough smelt dust-removing powder using Brown Alundum and produce smelting Brown Alundum for raw material, the production that this not only effectively reduces enterprise becomes
This, but also solve corundum environmental issue accordingly.
For achieving the above object, the present invention adopts the following technical scheme that：
A kind of Brown Alundum smelting process, described processing step is as follows：
A, by weight, 1 part of Brown Alundum is smelted dust-removing powder and is added in the hot water of 3-10 part 75-100 degree, add
The concentrated sulphuric acid of 0.05-0.3 part, stirs 60-180 minute under rotating speed 200-400rpm speed, then stands 8-12 hour；
B, the water that produces of standing is discharged, the water adding 20-40 part carries out washing and goes acid treatment, the pH value making slip is
5.5-7, is subsequently adding the alumdum of 0.1-20 part and stirs, then through filter-press dehydration molding make a diameter of 1-50mm
Grain material；
C, first with two grades of waste heats of smelting furnace, the granule materials made are dried, recycle smelting furnace one-level waste heat pair
Granule materials after drying carry out roasting, then deliver to the granule materials after thorough dehydration in blending bunker again；
D, in blending bunker, add 0.01-0.05 part reducing agent coke grain and 0.02-0.08 part precipitant iron filings granule,
After uniform mixing, material is proceeded to feed bin；
E, using batcher, material is sent into electric smelting furnace, by electric smelting furnace carry out successively charging reaction smelt and
Refine, and prepared Brown Alundum finished product after checking, cool down, be classified, crush and sieving.
Because using technical scheme as above, the present invention has the advantages that：
Not only application cost is relatively low for Brown Alundum smelting process of the present invention, operation convenient to carry out, and can ensure
Smelt the working of a furnace stable, product quality meets national sector standard；First smelt dust-removing powder to Brown Alundum due to described technique to carry out
Fall silicon deliming, then low temperature smelting makes Brown Alundum again, effectively make use of Brown Alundum to smelt dust-removing powder and smelts palm fibre to produce
Corundum, therefore, described technique not only efficiently solve in Brown Alundum crushing processing process occur dust-removing powder waste material waste and
The problem of environmental protection, but also reached, by saving bauxite resource, the production cost reducing manufacturing enterprise, it is that manufacturing enterprise increases
Add the purpose of economic benefit.
【Specific embodiment】
The present invention can be explained in more detail by the following examples, the open purpose of the present invention is intended to protect the present invention
In the range of all changes and improvements, the invention is not limited in the following examples：
Described Brown Alundum smelting process step is as follows：
A, by weight, 1 part of Brown Alundum is smelted dust-removing powder and is added in the hot water of 3-10 part 75-100 degree, add
The concentrated sulphuric acid of 0.05-0.3 part, stirs 60-180 minute under rotating speed 200-400rpm speed, then stands 8-12 hour；
B, the water that produces of standing is discharged, the water adding 20-40 part carries out washing and goes acid treatment, the pH value making slip is
5.5-7, is subsequently adding the alumdum of 0.1-20 part and stirs, then through filter-press dehydration molding make a diameter of 1-50mm
Grain material；
C, first with two grades of waste heats of smelting furnace, the granule materials made are dried, recycle smelting furnace one-level waste heat pair
Granule materials after drying carry out roasting, then deliver to the granule materials after thorough dehydration in blending bunker again；
D, in blending bunker, add 0.01-0.05 part reducing agent coke grain and 0.02-0.08 part precipitant iron filings granule,
And after uniform mixing, material is proceeded to feed bin, wherein, the particle diameter of coke and iron filings is set to 1-10mm；
E, using batcher, material is sent into electric smelting furnace, by adjusting smelting voltage x current and the electricity of electric smelting furnace
The control such as pole carries out successively charging reaction smelting and refine to material, and prepared after checking, cool down, be classified, crush and sieving
Brown Alundum finished product.
When being embodied as described Brown Alundum smelting process：
Example 1：
A, by weight, 1 part of Brown Alundum is smelted dust-removing powder and is added in the container of the hot water depositing 3 parts 100 degree, then
Add 0.15 part of concentrated sulphuric acid, uniform stirring 70 minutes under the speed for 400rpm for the rotating speed, then stand 10 hours；
B, the water that produces of standing is discharged, add 30 parts of water and carry out washing and go acid treatment, that is, remove residual in slip
Sulphuric acid, the pH value making slip is 6.5, then adds 0.1 part of alumdum in container again, and stirs, then makes
With pressure filter, slurry dewatering molding is made the granule materials of a diameter of 20mm；
C, two grades of waste heats first with smelting furnace are dried to the granule materials made, and recycle smelting furnace one-level waste heat
Roasting is carried out to the granule materials after drying, then delivers to the granule materials after thorough dehydration in blending bunker again；
D, in blending bunker, add 0.02 part of iron filings of precipitant and 0.01 part of coke of reducing agent, and be sufficiently mixed uniformly；
E, using batcher by mixed material send into electric smelting furnace in, successively fed by electric smelting furnace
Reaction is smelted and refine, finally Brown Alundum finished product is obtained after inspection, cooling, classification, broken and screening again.
Example 2：
A, by weight, 1 part of Brown Alundum is smelted dust-removing powder and is added in the container of the hot water depositing 6 parts 90 degree, then
Add 0.2 part of concentrated sulphuric acid, uniform stirring 80 minutes under the speed for 350rpm for the rotating speed, then stand 10 hours；
B, the water that produces of standing is discharged, add 35 parts of water and carry out washing and go acid treatment, that is, remove residual in slip
Sulphuric acid, the pH value making slip is 6.2, then adds 0.2 part of alumdum in container again, and stirs, then makes
With pressure filter, slurry dewatering molding is made the granule materials of a diameter of 2 0mm；
C, two grades of waste heats first with smelting furnace are dried to the granule materials made, and recycle smelting furnace one-level waste heat
Roasting is carried out to the granule materials after drying, then delivers to the granule materials after thorough dehydration in blending bunker again；
D, in blending bunker, add 0.025 part of iron filings of precipitant and 0.012 part of coke of reducing agent, and be sufficiently mixed uniformly；
E, using batcher by mixed material send into electric smelting furnace in, successively fed by electric smelting furnace
Reaction is smelted and refine, finally Brown Alundum finished product is obtained after inspection, cooling, classification, broken and screening again.
Part not in the detailed description of the invention is prior art, therefore the present invention is not described in detail.
Claims (3)
1. a kind of Brown Alundum smelting process, is characterized in that：Described processing step is as follows：
A, by weight, 1 part of Brown Alundum is smelted dust-removing powder and is added in the hot water of 3-10 part 75-100 degree, add 0.05-
0.3 part of concentrated sulphuric acid, stirs 60-180 minute under rotating speed 200-400rpm speed, then stands 8-12 hour；
B, the water that produces of standing is discharged, the water adding 20-40 part carries out washing and goes acid treatment, and the pH value making slip is 5.5-
7, it is subsequently adding the alumdum of 0.1-20 part and stirs, then make the particulate matter of a diameter of 1-50mm through filter-press dehydration molding
Material；
C, first with two grades of waste heats of smelting furnace, the granule materials made are dried, recycle smelting furnace one-level waste heat to drying
Granule materials afterwards carry out roasting, then deliver to the granule materials after thorough dehydration in blending bunker again；
D, add 0.01-0.05 part reducing agent coke grain and 0.02-0.08 part precipitant iron filings granule in blending bunker, equal
After even mixing, material is proceeded to feed bin；
E, using batcher, material is sent into electric smelting furnace, successively charging reaction is carried out by electric smelting furnace and smelts and essence
Refine, and prepared Brown Alundum finished product after checking, cool down, be classified, crush and sieving.
2. Brown Alundum smelting process according to claim 1, is characterized in that：The granule materials made in described step B
A diameter of 20mm.
3. Brown Alundum smelting process according to claim 1, is characterized in that：Coke grain and iron filings in described step D
The diameter of granule is set to 1-10mm.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
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| CN201510069454.9A CN104692427B (en) | 2015-02-11 | 2015-02-11 | A kind of Brown Alundum smelting process |
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| Application Number | Priority Date | Filing Date | Title |
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| CN201510069454.9A CN104692427B (en) | 2015-02-11 | 2015-02-11 | A kind of Brown Alundum smelting process |
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| CN104692427A CN104692427A (en) | 2015-06-10 |
| CN104692427B true CN104692427B (en) | 2017-03-01 |
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Families Citing this family (3)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN108996997B (en) * | 2018-10-08 | 2021-03-26 | 贵州银星新材料科技有限公司 | Bauxite smelting method |
| CN109502616B (en) * | 2019-01-08 | 2021-05-25 | 贵州遵义金山磨料有限公司 | Preparation method of bauxite for smelting brown corundum |
| CN116907204B (en) * | 2023-09-08 | 2023-11-28 | 山西吕梁山矿产品有限公司 | Device and method for smelting brown fused alumina |
Family Cites Families (10)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN100360411C (en) * | 2005-03-10 | 2008-01-09 | 沈兰英 | Method of smelting bauxite corundum |
| CN100999329A (en) * | 2006-12-28 | 2007-07-18 | 上海交通大学 | Method of producing brown corundum using aluminium ash |
| CN101214985A (en) * | 2008-01-11 | 2008-07-09 | 陈宏亲 | Technique for preparing brown corundum |
| CN102050474A (en) * | 2009-11-07 | 2011-05-11 | 唐笃信 | Synchronous and quick corundum smelting technical scheme |
| CN102500184B (en) * | 2011-11-15 | 2013-10-23 | 中南大学 | Closed-circuit recycling process of waste gas and waste residue generated during production of brown fused alumina and calcium carbide |
| CN102815731A (en) * | 2012-09-12 | 2012-12-12 | 王洪仁 | Smelting technique of brown corundum |
| CN103011214A (en) * | 2012-11-21 | 2013-04-03 | 贵州金义磨料有限公司 | Novel production technology of high-purity brown aluminum oxide |
| CN103265273B (en) * | 2013-05-29 | 2014-11-05 | 洛阳金石再生资源开发有限公司 | Treatment process of aluminum ash for producing brown fused alumina |
| CN103274436B (en) * | 2013-05-29 | 2015-01-07 | 洛阳金石再生资源开发有限公司 | Method for producing brown fused alumina by use of aluminum ash low-temperature smelting |
| CN104229842A (en) * | 2013-06-07 | 2014-12-24 | 杜小红 | Technology for smelting brown fused alumina with high-iron bauxite |
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Effective date of registration: 20171012 Address after: 471300 village, Baisha Township, Yichuan County, Luoyang, Henan Patentee after: Igawa Ryuizumi Dongfeng Abrasives Co., Ltd. Address before: 471332 Yichuan City, Henan province equal Township Industrial Zone (City Village) Patentee before: Henan east wind Xin Yan material Science and Technology Ltd. |
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