CN109502616A - A kind of Brown Alundum smelting bauxite preparation method - Google Patents
A kind of Brown Alundum smelting bauxite preparation method Download PDFInfo
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- CN109502616A CN109502616A CN201910013888.5A CN201910013888A CN109502616A CN 109502616 A CN109502616 A CN 109502616A CN 201910013888 A CN201910013888 A CN 201910013888A CN 109502616 A CN109502616 A CN 109502616A
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- brown alundum
- bauxite
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- C—CHEMISTRY; METALLURGY
- C01—INORGANIC CHEMISTRY
- C01F—COMPOUNDS OF THE METALS BERYLLIUM, MAGNESIUM, ALUMINIUM, CALCIUM, STRONTIUM, BARIUM, RADIUM, THORIUM, OR OF THE RARE-EARTH METALS
- C01F7/00—Compounds of aluminium
- C01F7/02—Aluminium oxide; Aluminium hydroxide; Aluminates
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Abstract
The present invention provides a kind of Brown Alundum smelting bauxite preparation method, and this method is through following steps: raw material configuration raw material grinding, slurry preparation, is granulated, Brown Alundum smelting bauxite raw material finished product is made after roasting.The present invention smelts dust-removing powder using a large amount of bauxite fine ores, face mine, middle-low grade ore and Brown Alundum, Brown Alundum tailing prepares Brown Alundum smelting bauxite as its raw materials for production, it is not only cheap, and bauxite fine ore, face mine, middle-low grade ore and Brown Alundum are smelted into dust-removing powder, Brown Alundum tailing micro mist using clay and effectively bonded in uniform particle, effectively prevent the segregation phenomenon of mixture in roasting process, so that when roasting, material composition fluctuation is small, and the smelting of the Brown Alundum because prepared by with bauxite ingredient, stablize by uniform, quality；And the wasting of resources is avoided, so that environmental benefit increases substantially, and the production cost of enterprise is reduced accordingly.
Description
Technical field
The present invention relates to Brown Alundum production technical fields, and in particular to a kind of Brown Alundum smelting bauxite preparation method.
Background technique
Bauxite is mainly used for the production of commercial alumina, also has extensively in fields such as refractory material, high alumina cement and abrasive materials
General application.Recently as China's rapid development of economy, aluminum i ndustry, refractories industry, high alumina cement, grinding materials and grinding tool with
The demand of bauxite is increased in the fields such as grinding increasingly, and the consumption of bauxite resource is increasing, and these industries are more
With high-grade bauxite, leading to high grade ore, supply falls short of demand, and a large amount of fine ores, face mine and middle-low grade ore are idle.
Along with the extensive release of domestic aluminium oxide production capacity, China's bauxite resource relative scarcity, ends 2008, China's aluminium in addition
Vanadine reserves are 8.7 hundred million tons, only account for the 2.3% of global basis reserves, product accounts for global 10%, according to existing reserves and exploitation
Level, domestic bauxite are only capable of maintaining 10 years, and bauxite resource faces a crisis.
The deficient of high-quality bauxite resource causes very big influence to the Brown Alundum industry for relying on the existence of bauxite resource,
Main production raw material supply deficiency rises steadily with price, for the continuous decline of mine grade, leads to the production for plunderring corundum product
Cost improves, and every technical-economic index is deteriorated, and market competitiveness decline, this seriously constrains the health of China's Brown Alundum industry
Sustainable development.
Dust-precipitator can collect a large amount of dust-removing powders in Brown Alundum smelting process, which mainly contains the subtle degree of Brown Alundum
Dust in material and air, Al2O3 content is between 80-85 % in the dust-removing powder；In addition, can be remained in Brown Alundum granulation processing
It is remaining containing more impurity and fineness is the Brown Alundum tailing micro mist of 325 mesh, not except before iron, the Brown Alundum tailing micro mist
Al2O3 content is between 72-80 %；These dust-removing powders and micro mist bulk deposition not only will affect environmental protection, also will cause serious
The wasting of resources, and be correspondingly improved the production cost of enterprise.
In face of the status of domestic Brown Alundum industry, cheap a large amount of bauxite fine ores, face mine, middle and low grade bauxite are utilized
Stone and Brown Alundum smelt dust-removing powder, Brown Alundum tailing as its Brown Alundum that raw materials for production prepared composition is uniform, quality is stable
It smelts and uses bauxite, be the application problem to be solved.
Summary of the invention
The problem of for background technique, it is uniform that the present invention provides a kind of ingredient, and quality is stable and can effectively reduce
The Brown Alundum of production cost, which is smelted, uses bauxite preparation method.
In order to solve the above technical problems, the technical scheme adopted by the invention is as follows:
A kind of Brown Alundum smelting bauxite preparation method, comprising the following steps:
(1) raw material configures: taking the bauxite ore that the bauxite powder mine that Al2O3 content is 70-72%, Al2O3 content are 58-62%
Stone, Al2O3 content be 80-85% Brown Alundum smelt dust-removing powder, Al2O3 content 72-80 % Brown Alundum tailing micro mist,
The clay that Al2O3 content is 39-42% is raw material and individually enters raw material cabin；
(2) raw material grinding: accurate blanking is carried out to each raw material cabin using belted electronic balance by composition of raw materials, raw material passes through electronics skin
Belt scale is sent on haul belt feeder, enters mixing after the mixing powder of 0.15-0.25mm at fineness by belt feeder feeding vertical mill grinding
Storehouse；
(3) prepared by slurry: fine powder in blending bunker being put into stirring pool, 0.3-0.7 times of mixing silty is then added in stirring pool
Slurry is made after being mixed in the low concentration sour water of amount；It is stirred continuously slurry, makes slurry PH control in 6.2-6.8；
(4) be granulated: by slurry after filter-press dehydration, enter be granulated be made partial size be 5-12mm homogeneous particle (due in ingredient
Containing clay, therefore particle obtained is not susceptible to fragmentation, uniformly can uniformly be combined together each raw material component, prevent
There is segregation phenomenon, when the uniform particle of this sample ingredient is calcined, fluctuation is small, and junior fellow apprentice's calcining is easier to control, also can be fine
Control Brown Alundum smelt use bauxite raw material finished product quality, to burn high-quality Brown Alundum smelting bauxite former material
Expect finished product)；
(5) it roasts: above-mentioned homogeneous particle being sent at 800-1000 DEG C of tunnel oven and is roasted to after 1.5-2.5 hours, after cooling,
Up to Brown Alundum smelting bauxite raw material finished product.
Further, the composition of raw materials of the step (2) are as follows: bauxite powder mine 23-35%, bauxite ore 39-50%,
Brown Alundum smelts dust-removing powder 8-16%, Brown Alundum tailing micro mist 11-19%, clay 3-7%, and the sum of above-mentioned raw materials percentage is 100%.
Further, the composition of raw materials of the step (2) are as follows: bauxite powder mine 30%, bauxite ore 42%, Brown Alundum
Smelt dust-removing powder 10%, Brown Alundum tailing micro mist 13%, clay 5%.
Further, the composition of raw materials of the step (2) are as follows: bauxite powder mine 24%, bauxite ore 46%, Brown Alundum
Smelt dust-removing powder 13%, Brown Alundum tailing micro mist 12%, clay 5%.
Further, low concentration sour water is dilute hydrochloric acid that concentration is 8-12% in the step (3).
Compared with prior art, the present invention utilizes a large amount of bauxite fine ores, face mine, middle-low grade ore and Brown Alundum smelting
Refining dust-removing powder, Brown Alundum tailing prepare Brown Alundum smelting bauxite, not only cheap, Er Qieli as its raw materials for production
It is with clay that bauxite fine ore, face mine, middle-low grade ore and Brown Alundum smelting dust-removing powder, Brown Alundum tailing micro mist is effective
Bonding is in uniform particle, effectively prevents the segregation phenomenon of mixture in roasting process, so that when roasting, material composition wave
Move small, the Brown Alundum because prepared by is smelted with bauxite ingredient is uniform, quality is stablized；It is prepared using low concentration sour water to slurry is carried out
Not only facilitate granulation, but also can also effectively clean, promotes Al2O3 content in Brown Alundum smelting bauxite raw material finished product, with
Meet Brown Alundum and smelts needs；In addition, dust-removing powder, Brown Alundum tailing are smelted as its raw materials for production since Brown Alundum is utilized,
The wasting of resources is avoided, so that environmental benefit increases substantially, and reduces the production cost of enterprise accordingly.
Specific embodiment
Principles and features of the present invention are described in further detail below with reference to embodiment, example is served only for explaining
Invention, is not intended to limit the scope of the present invention.
Embodiment one:
A kind of Brown Alundum smelting bauxite preparation method, comprising the following steps:
(1) raw material configures: taking the bauxite ore that the bauxite powder mine that Al2O3 content is 70-72%, Al2O3 content are 58-62%
Stone, Al2O3 content be 80-85% Brown Alundum smelt dust-removing powder, Al2O3 content 72-80 % Brown Alundum tailing micro mist,
The clay that Al2O3 content is 39-42% is raw material and individually enters raw material cabin；
(2) raw material grinding: press composition of raw materials: bauxite powder mine 30%, bauxite ore 42%, Brown Alundum smelt dust-removing powder 10%,
Brown Alundum tailing micro mist 13%, clay 5% carry out accurate blanking to each raw material cabin using belted electronic balance, and raw material passes through electronics skin
Belt scale is sent on haul belt feeder, enters mixing after the mixing powder of 0.15-0.25mm at fineness by belt feeder feeding vertical mill grinding
Storehouse；
(3) slurry prepare: fine powder in blending bunker is put into stirring pool, then in stirring pool be added 0.5 times of mixing silty amount and
Slurry is made after being mixed in the dilute hydrochloric acid that concentration is 12%；It is stirred continuously slurry, makes slurry PH control 6.5；
(4) it is granulated: by slurry after filter-press dehydration, entering the homogeneous particle for being granulated and being made that partial size is 5-12mm；
(5) it roasts: above-mentioned homogeneous particle being sent at 800-1000 DEG C of tunnel oven and is roasted to after 2 hours, after cooling to get palm fibre
Corundum smelting bauxite raw material finished product.
Embodiment two:
A kind of Brown Alundum smelting bauxite preparation method, comprising the following steps:
(1) raw material configures: taking the bauxite ore that the bauxite powder mine that Al2O3 content is 70-72%, Al2O3 content are 58-62%
Stone, Al2O3 content be 80-85% Brown Alundum smelt dust-removing powder, Al2O3 content 72-80 % Brown Alundum tailing micro mist,
The clay that Al2O3 content is 39-42% is raw material and individually enters raw material cabin；
(2) raw material grinding: press composition of raw materials: bauxite powder mine 24%, bauxite ore 46%, Brown Alundum smelt dust-removing powder 13%,
Brown Alundum tailing micro mist 12%, clay 5% carry out accurate blanking to each raw material cabin using belted electronic balance, and raw material passes through electronics skin
Belt scale is sent on haul belt feeder, enters mixing after the mixing powder of 0.15-0.25mm at fineness by belt feeder feeding vertical mill grinding
Storehouse；
(3) slurry prepare: fine powder in blending bunker is put into stirring pool, then in stirring pool be added 0.7 times of mixing silty amount and
Slurry is made after being mixed in the dilute hydrochloric acid that concentration is 12%；It is stirred continuously slurry, makes slurry PH control 6.7；
(4) it is granulated: by slurry after filter-press dehydration, entering the homogeneous particle for being granulated and being made that partial size is 5-12mm；
(5) it roasts: above-mentioned homogeneous particle being sent at 800-1000 DEG C of tunnel oven and is roasted to after 2 hours, after cooling to get palm fibre
Corundum smelting bauxite raw material finished product.
The above description is only a preferred embodiment of the present invention, is not intended to restrict the invention, for those skilled in the art
For member, the invention may be variously modified and varied.All within the spirits and principles of the present invention, it is made it is any modification,
Equivalent replacement, improvement etc. should all include within protection scope of the present invention.
Claims (5)
1. a kind of Brown Alundum, which is smelted, uses bauxite preparation method, which comprises the following steps:
(1) raw material configures: taking the bauxite ore that the bauxite powder mine that Al2O3 content is 70-72%, Al2O3 content are 58-62%
Stone, Al2O3 content be 80-85% Brown Alundum smelt dust-removing powder, Al2O3 content 72-80 % Brown Alundum tailing micro mist,
The clay that Al2O3 content is 39-42% is raw material and individually enters raw material cabin；
(2) raw material grinding: accurate blanking is carried out to each raw material cabin using belted electronic balance by composition of raw materials, raw material passes through electronics skin
Belt scale is sent on haul belt feeder, enters mixing after the mixing powder of 0.15-0.25mm at fineness by belt feeder feeding vertical mill grinding
Storehouse；
(3) prepared by slurry: fine powder in blending bunker being put into stirring pool, 0.3-0.7 times of mixing silty is then added in stirring pool
Slurry is made after being mixed in the low concentration sour water of amount；It is stirred continuously slurry, makes slurry PH control in 6.2-6.8；
(4) it is granulated: by slurry after filter-press dehydration, entering the homogeneous particle for being granulated and being made that partial size is 5-12mm；
(5) it roasts: above-mentioned homogeneous particle being sent at 800-1000 DEG C of tunnel oven and is roasted to after 1.5-2.5 hours, after cooling,
Up to Brown Alundum smelting bauxite raw material finished product.
2. Brown Alundum, which is smelted, according to claim 1 uses bauxite preparation method, which is characterized in that the original of the step (2)
Material formula are as follows: bauxite powder mine 23-35%, bauxite ore 39-50%, Brown Alundum smelt dust-removing powder 8-16%, Brown Alundum tailing
Micro mist 11-19%, clay 3-7%, the sum of above-mentioned raw materials percentage are 100%.
3. Brown Alundum, which is smelted, according to claim 2 uses bauxite preparation method, which is characterized in that the original of the step (2)
Material formula are as follows: bauxite powder mine 30%, bauxite ore 42%, Brown Alundum smelt dust-removing powder 10%, Brown Alundum tailing micro mist 13%,
Clay 5%.
4. Brown Alundum, which is smelted, according to claim 2 uses bauxite preparation method, which is characterized in that the original of the step (2)
Material formula are as follows: bauxite powder mine 24%, bauxite ore 46%, Brown Alundum smelt dust-removing powder 13%, Brown Alundum tailing micro mist 12%,
Clay 5%.
5. Brown Alundum, which is smelted, according to claim 1 uses bauxite preparation method, it is characterised in that: low in the step (3)
Concentration sour water is the dilute hydrochloric acid that concentration is 8-12%.
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| CN201910013888.5A CN109502616B (en) | 2019-01-08 | 2019-01-08 | Preparation method of bauxite for smelting brown corundum |
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| CN201910013888.5A CN109502616B (en) | 2019-01-08 | 2019-01-08 | Preparation method of bauxite for smelting brown corundum |
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| CN109502616A true CN109502616A (en) | 2019-03-22 |
| CN109502616B CN109502616B (en) | 2021-05-25 |
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Cited By (3)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN110372338A (en) * | 2019-08-30 | 2019-10-25 | 贵州大学 | A method of Brown Alundum is prepared using Powder bauxite and lime-ash |
| CN110591643A (en) * | 2019-05-23 | 2019-12-20 | 禹州市金宇抛光材料有限公司 | Novel grinding material regenerated from brown corundum grinding material production tailings |
| CN113649523A (en) * | 2021-08-18 | 2021-11-16 | 贵州黄平富城实业有限公司 | Raw material ore pretreatment process for bauxite processing |
Citations (2)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN104692427A (en) * | 2015-02-11 | 2015-06-10 | 河南东风新研材科技有限公司 | Brown aluminum oxide smelting process |
| CN108439443A (en) * | 2018-03-29 | 2018-08-24 | 贵州遵义金山磨料有限公司 | A kind of method that Brown Alundum production is homogenized with bauxite ore |
-
2019
- 2019-01-08 CN CN201910013888.5A patent/CN109502616B/en active Active
Patent Citations (2)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN104692427A (en) * | 2015-02-11 | 2015-06-10 | 河南东风新研材科技有限公司 | Brown aluminum oxide smelting process |
| CN108439443A (en) * | 2018-03-29 | 2018-08-24 | 贵州遵义金山磨料有限公司 | A kind of method that Brown Alundum production is homogenized with bauxite ore |
Cited By (3)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN110591643A (en) * | 2019-05-23 | 2019-12-20 | 禹州市金宇抛光材料有限公司 | Novel grinding material regenerated from brown corundum grinding material production tailings |
| CN110372338A (en) * | 2019-08-30 | 2019-10-25 | 贵州大学 | A method of Brown Alundum is prepared using Powder bauxite and lime-ash |
| CN113649523A (en) * | 2021-08-18 | 2021-11-16 | 贵州黄平富城实业有限公司 | Raw material ore pretreatment process for bauxite processing |
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Denomination of invention: A preparation method of bauxite for smelting brown corundum Effective date of registration: 20220718 Granted publication date: 20210525 Pledgee: Zunyi Honghuagang sub branch of Bank of Guiyang Co.,Ltd. Pledgor: GUIZHOU ZUNYI JINSHAN ABRASIVE Co.,Ltd. Registration number: Y2022980010682 |