CN104692427A - Brown aluminum oxide smelting process - Google Patents
Brown aluminum oxide smelting process Download PDFInfo
- Publication number
- CN104692427A CN104692427A CN201510069454.9A CN201510069454A CN104692427A CN 104692427 A CN104692427 A CN 104692427A CN 201510069454 A CN201510069454 A CN 201510069454A CN 104692427 A CN104692427 A CN 104692427A
- Authority
- CN
- China
- Prior art keywords
- aluminum oxide
- smelting
- brown alundum
- granule materials
- brown
- Prior art date
- Legal status (The legal status is an assumption and is not a legal conclusion. Google has not performed a legal analysis and makes no representation as to the accuracy of the status listed.)
- Granted
Links
Classifications
-
- 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
- Y02—TECHNOLOGIES OR APPLICATIONS FOR MITIGATION OR ADAPTATION AGAINST CLIMATE CHANGE
- Y02P—CLIMATE CHANGE MITIGATION TECHNOLOGIES IN THE PRODUCTION OR PROCESSING OF GOODS
- Y02P20/00—Technologies relating to chemical industry
- Y02P20/10—Process efficiency
- Y02P20/129—Energy recovery, e.g. by cogeneration, H2recovery or pressure recovery turbines
Landscapes
- Manufacture And Refinement Of Metals (AREA)
Abstract
The invention relates to a brown aluminum oxide smelting process. The process comprises the following steps: firstly adding brown aluminum oxide smelting dust removing powder into hot water; adding 0.05-0.3 part of concentrated sulfuric acid to perform water-washing acid-removal treatment; adding aluminum oxide powder; uniformly stirring to obtain a particle material; conveying the dehydrated particle material to a mixing bin; uniformly mixing the particle material with coke and scrap iron in the mixing bin; finally gradually adding the material layer by layer, reacting, smelting and refining in an electric arc smelting furnace; inspecting, cooling, classifying, crushing and sieving to obtain a brown aluminum oxide finished product. According to the process, the brown aluminum oxide smelting dust removing powder is taken as a raw material for producing smelted brown aluminum oxide, so that the production cost of the enterprise is effectively lowered, and the environmental protection problem of the brown aluminum oxide is correspondingly solved as well.
Description
[technical field]
The present invention relates to Brown Alundum field of smelting, especially relate to a kind of with Brown Alundum smelt dust-removing powder for raw material is to smelt the Brown Alundum smelting technology of Brown Alundum.
[background technology]
Known, Brown Alundum is for main raw material with bauxitic clay, iron filings and coke, and the brown diamantine made through high melt in electric arc furnace, due to its there is good toughness, the feature such as fusing point is high, corrosion-resistant, linear expansivity is low and grinding performance is good, therefore often select Brown Alundum crushing and screening and material processed, then make and be suitable for processing the higher metal of grinding anti-tensile, as the grinding tool of various general steel, malleable iron, carbon steel and hard bronze etc., Brown Alundum can also for the manufacture of high-grade refractory materials simultaneously; On the other hand, Brown Alundum smelts dust-removing powder, namely the dust collection powder be commonly called as refers to the ultrafine dust material collected in Brown Alundum smelting process, this material is formed primarily of the mixing of bauxite powder, carbon dust, iron filings and clay powder, smelt finished product due to this material and Brown Alundum and differ comparatively large, therefore often by Brown Alundum processing enterprise as waste dump; But, the bauxite raw material of smelting due to Brown Alundum belongs to Nonrenewable resources, 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 the corresponding production cost improving enterprise, therefore, how can be large by fine size, impurity, major ingredient is aluminium sesquioxide, silicon-dioxide, ferric oxide, titanium dioxide, calcium oxide and coke powder smelting dust-removing powder be applied to manufacture Brown Alundum just become Brown Alundum smelt in one of important subject.
[summary of the invention]
In order to overcome the deficiency in background technology, the invention discloses a kind of Brown Alundum smelting technology, described technique can utilize Brown Alundum to smelt dust-removing powder for raw material is to produce smelting Brown Alundum, and this not only effectively reduces the production cost of enterprise, but also solves corundum environmental issue accordingly.
For achieving the above object, the present invention adopts following technical scheme:
A kind of Brown Alundum smelting technology, described processing step is as follows:
A, by weight, smelts dust-removing powder by 1 part of Brown Alundum and joins in the hot water of 3-10 part 75-100 degree, then add the vitriol oil of 0.05-0.3 part, under rotating speed 200-400rpm speed, stir 60-180 minute, then leave standstill 8-12 hour;
B, discharged by the water of standing generation, then the water adding 20-40 part carries out the process of washing disacidify, makes the pH value of slip be 5.5-7, then adds the alundum of 0.1-20 part and stir, then makes the granule materials that diameter is 1-50mm through filter-press dehydration is shaping;
C, first utilize smelting furnace secondary waste heat to dry the granule materials made, recycling smelting furnace one-level waste heat carries out roasting to the granule materials after drying, and then delivers in blending bunker by the granule materials after thorough dehydration;
D, in blending bunker, add 0.01-0.05 part reductive agent coke grain and 0.02-0.08 part precipitation agent iron filings particle, after Homogeneous phase mixing, material is proceeded to feed bin;
Material is sent into electric smelting furnace by E, use feeding machine, carries out successively charging reaction and smelts and refining, and obtain Brown Alundum finished product by electric smelting furnace after inspection, cooling, classification, fragmentation and screening.
Owing to adopting technical scheme as above, the present invention has following beneficial effect:
Not only application cost is lower for Brown Alundum smelting technology of the present invention, is convenient to implementation and operation, and can ensure that smelting the working of a furnace stablizes, and quality product meets national sector standard; First dust-removing powder is smelted to Brown Alundum due to described technique and fall silicon deliming, and then low temperature smelting makes Brown Alundum, namely effectively make use of Brown Alundum and smelt dust-removing powder to produce smelting Brown Alundum, therefore, described technique not only efficiently solves the problem of dust-removing powder waste material waste and the environmental protection occurred in Brown Alundum crushing processing process, but also reach the production cost reducing manufacturing enterprise, for manufacturing enterprise adds the object of economic benefit by saving bauxitic clay resource.
[embodiment]
Can explain the present invention in more detail by the following examples, disclose object of the present invention and be intended to protect all changes and improvements in the scope of the invention, the present invention is not limited to the following examples:
Described Brown Alundum smelting technology step is as follows:
A, by weight, smelts dust-removing powder by 1 part of Brown Alundum and joins in the hot water of 3-10 part 75-100 degree, then add the vitriol oil of 0.05-0.3 part, under rotating speed 200-400rpm speed, stir 60-180 minute, then leave standstill 8-12 hour;
B, discharged by the water of standing generation, then the water adding 20-40 part carries out the process of washing disacidify, makes the pH value of slip be 5.5-7, then adds the alundum of 0.1-20 part and stir, then makes the granule materials that diameter is 1-50mm through filter-press dehydration is shaping;
C, first utilize smelting furnace secondary waste heat to dry the granule materials made, recycling smelting furnace one-level waste heat carries out roasting to the granule materials after drying, and then delivers in blending bunker by the granule materials after thorough dehydration;
D, in blending bunker, add 0.01-0.05 part reductive agent coke grain and 0.02-0.08 part precipitation agent iron filings particle, and after Homogeneous phase mixing, material is proceeded to feed bin, wherein, the particle diameter of coke and iron filings is set to 1-10mm;
Material is sent into electric smelting furnace by E, use feeding machine, control that successively charging reaction is carried out to material smelt and refining by adjusting the smelting electric current and voltage of electric smelting furnace and electrode etc., and through inspection, cooling, classification, fragmentation with obtain Brown Alundum finished product after sieving.
During Brown Alundum smelting technology described in concrete enforcement:
Example 1:
A, by weight, smelts dust-removing powder by 1 part of Brown Alundum and joins in the container of the hot water depositing 3 parts 100 degree, then add the vitriol oil of 0.15 part, is uniform stirring 70 minutes under the speed of 400rpm at rotating speed, then standing 10 hours;
B, the water of standing generation to be discharged, the water adding 30 parts again carries out the process of washing disacidify, namely sulfuric acid residual in slip is removed, the pH value of slip is made to be 6.5, and then in container, add 0.1 part of alundum, and stir, then use pressure filter by shaping for the slurry dewatering granule materials made diameter and be 20mm;
C, first utilize the secondary waste heat of smelting furnace to dry the granule materials made, recycling smelting furnace one-level waste heat carries out roasting to the granule materials after drying, and then delivers in blending bunker by the granule materials after thorough dehydration;
D, in blending bunker, add precipitation agent 0.02 part of iron filings and reductive agent 0.01 part of coke, and fully mix;
Mixed material is sent in electric smelting furnace by E, use feeding machine, carries out successively charging reaction and smelts and refining, finally after inspection, cooling, classification, fragmentation and screening, namely obtain Brown Alundum finished product again by electric smelting furnace.
Example 2:
A, by weight, smelts dust-removing powder by 1 part of Brown Alundum and joins in the container of the hot water depositing 6 parts 90 degree, then add the vitriol oil of 0.2 part, is uniform stirring 80 minutes under the speed of 350rpm at rotating speed, then standing 10 hours;
B, the water of standing generation to be discharged, the water adding 35 parts again carries out the process of washing disacidify, namely sulfuric acid residual in slip is removed, the pH value of slip is made to be 6.2, and then in container, add 0.2 part of alundum, and stir, then use pressure filter to make shaping for slurry dewatering the granule materials that diameter is 2 0mm;
C, first utilize the secondary waste heat of smelting furnace to dry the granule materials made, recycling smelting furnace one-level waste heat carries out roasting to the granule materials after drying, and then delivers in blending bunker by the granule materials after thorough dehydration;
D, in blending bunker, add precipitation agent 0.025 part of iron filings and reductive agent 0.012 part of coke, and fully mix;
Mixed material is sent in electric smelting furnace by E, use feeding machine, carries out successively charging reaction and smelts and refining, finally after inspection, cooling, classification, fragmentation and screening, namely obtain Brown Alundum finished product again by electric smelting furnace.
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 Brown Alundum smelting technology, is characterized in that: described processing step is as follows:
A, by weight, smelts dust-removing powder by 1 part of Brown Alundum and joins in the hot water of 3-10 part 75-100 degree, then add the vitriol oil of 0.05-0.3 part, under rotating speed 200-400rpm speed, stir 60-180 minute, then leave standstill 8-12 hour;
B, discharged by the water of standing generation, then the water adding 20-40 part carries out the process of washing disacidify, makes the pH value of slip be 5.5-7, then adds the alundum of 0.1-20 part and stir, then makes the granule materials that diameter is 1-50mm through filter-press dehydration is shaping;
C, first utilize smelting furnace secondary waste heat to dry the granule materials made, recycling smelting furnace one-level waste heat carries out roasting to the granule materials after drying, and then delivers in blending bunker by the granule materials after thorough dehydration;
D, in blending bunker, add 0.01-0.05 part reductive agent coke grain and 0.02-0.08 part precipitation agent iron filings particle, after Homogeneous phase mixing, material is proceeded to feed bin;
Material is sent into electric smelting furnace by E, use feeding machine, carries out successively charging reaction and smelts and refining, and obtain Brown Alundum finished product by electric smelting furnace after inspection, cooling, classification, fragmentation and screening.
2. Brown Alundum smelting technology according to claim 1, is characterized in that: the granule materials diameter made in described step B is 20mm.
3. Brown Alundum smelting technology according to claim 1, is characterized in that: in described step D, the Zhi Jing Zhuo of coke grain and iron filings particle is set to 1-10mm.
Priority Applications (1)
Application Number | Priority Date | Filing Date | Title |
---|---|---|---|
CN201510069454.9A CN104692427B (en) | 2015-02-11 | 2015-02-11 | A kind of Brown Alundum smelting process |
Applications Claiming Priority (1)
Application Number | Priority Date | Filing Date | Title |
---|---|---|---|
CN201510069454.9A CN104692427B (en) | 2015-02-11 | 2015-02-11 | A kind of Brown Alundum smelting process |
Publications (2)
Publication Number | Publication Date |
---|---|
CN104692427A true CN104692427A (en) | 2015-06-10 |
CN104692427B CN104692427B (en) | 2017-03-01 |
Family
ID=53340046
Family Applications (1)
Application Number | Title | Priority Date | Filing Date |
---|---|---|---|
CN201510069454.9A Expired - Fee Related CN104692427B (en) | 2015-02-11 | 2015-02-11 | A kind of Brown Alundum smelting process |
Country Status (1)
Country | Link |
---|---|
CN (1) | CN104692427B (en) |
Cited By (3)
Publication number | Priority date | Publication date | Assignee | Title |
---|---|---|---|---|
CN108996997A (en) * | 2018-10-08 | 2018-12-14 | 贵州银星新材料科技有限公司 | A kind of bauxite smelting process |
CN109502616A (en) * | 2019-01-08 | 2019-03-22 | 贵州遵义金山磨料有限公司 | A kind of Brown Alundum smelting bauxite preparation method |
CN116907204A (en) * | 2023-09-08 | 2023-10-20 | 山西吕梁山矿产品有限公司 | Device and method for smelting brown fused alumina |
Citations (10)
Publication number | Priority date | Publication date | Assignee | Title |
---|---|---|---|---|
CN1673171A (en) * | 2005-03-10 | 2005-09-28 | 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 |
CN102500184A (en) * | 2011-11-15 | 2012-06-20 | 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 |
CN103265273A (en) * | 2013-05-29 | 2013-08-28 | 洛阳金石再生资源开发有限公司 | Treatment process of aluminum ash for producing brown fused alumina |
CN103274436A (en) * | 2013-05-29 | 2013-09-04 | 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 |
-
2015
- 2015-02-11 CN CN201510069454.9A patent/CN104692427B/en not_active Expired - Fee Related
Patent Citations (10)
Publication number | Priority date | Publication date | Assignee | Title |
---|---|---|---|---|
CN1673171A (en) * | 2005-03-10 | 2005-09-28 | 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 |
CN102500184A (en) * | 2011-11-15 | 2012-06-20 | 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 |
CN103265273A (en) * | 2013-05-29 | 2013-08-28 | 洛阳金石再生资源开发有限公司 | Treatment process of aluminum ash for producing brown fused alumina |
CN103274436A (en) * | 2013-05-29 | 2013-09-04 | 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 |
Non-Patent Citations (1)
Title |
---|
刘瑞琼等: ""利用铝灰低温冶炼制备棕刚玉"", 《耐火材料》 * |
Cited By (4)
Publication number | Priority date | Publication date | Assignee | Title |
---|---|---|---|---|
CN108996997A (en) * | 2018-10-08 | 2018-12-14 | 贵州银星新材料科技有限公司 | A kind of bauxite smelting process |
CN109502616A (en) * | 2019-01-08 | 2019-03-22 | 贵州遵义金山磨料有限公司 | A kind of Brown Alundum smelting bauxite preparation method |
CN116907204A (en) * | 2023-09-08 | 2023-10-20 | 山西吕梁山矿产品有限公司 | Device and method for smelting brown fused alumina |
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 |
Also Published As
Publication number | Publication date |
---|---|
CN104692427B (en) | 2017-03-01 |
Similar Documents
Publication | Publication Date | Title |
---|---|---|
Balomnenos et al. | The ENEXAL bauxite residue treatment process: industrial scale pilot plant results | |
CN102242259B (en) | Preparation process of low-grade laterite nickel ore oxidized pellet | |
CN101913634A (en) | Processing method for recycling aluminum dross | |
CN103708462A (en) | Method for preparing calcium carbide | |
CN1516744A (en) | Method for producing granular metal | |
CN102373329A (en) | Method for gathering nickel and iron from laterite-nickel ores | |
CN106115714A (en) | A kind of preparation method of metallic silicon | |
CN103276202B (en) | Metal grained iron and aluminium oxide production method by utilization of high-ferro bauxite | |
CN104692427A (en) | Brown aluminum oxide smelting process | |
CN104550992A (en) | Processing and production method for secondarily reduced powder | |
CN106673682A (en) | Method for producing iron alloy and refractory material by utilizing solid wastes | |
CN104671752B (en) | A kind of method that utilization dust-removing powder smelts Brown Alundum | |
CN101435020B (en) | Method for producing titanium-rich material from titanium ore concentrate | |
CN104787741B (en) | The method of the carbon containing powder resource utilization of industry | |
CN110721977A (en) | Method for directly preparing active iron powder by utilizing slag generated by smelting reduction furnace | |
CN106011493A (en) | Roasting method of low-grade vanadium slags | |
US20090270243A1 (en) | Titanium-containing additive | |
CN1019570B (en) | Making method of electric smelting magnesia | |
CN111099899B (en) | Treatment process of waste magnesia carbon brick regenerated particles | |
CN107721396A (en) | A kind of manufacture craft of Brown Alundum | |
CN108996997B (en) | Bauxite smelting method | |
JP2015183289A (en) | Method for manufacturing sintered ore | |
TW201400624A (en) | Method for producing austenitic stainless steel with nickel and chromium ore | |
CN105039766A (en) | Cemented carbide for cutting blade and preparation method for cemented carbide | |
CN104962685A (en) | Vanadium extraction cooling agent and preparation method thereof |
Legal Events
Date | Code | Title | Description |
---|---|---|---|
C06 | Publication | ||
PB01 | Publication | ||
C10 | Entry into substantive examination | ||
SE01 | Entry into force of request for substantive examination | ||
GR01 | Patent grant | ||
GR01 | Patent grant | ||
TR01 | Transfer of patent right | ||
TR01 | Transfer of patent right |
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. |
|
CF01 | Termination of patent right due to non-payment of annual fee | ||
CF01 | Termination of patent right due to non-payment of annual fee |
Granted publication date: 20170301 Termination date: 20200211 |