CN103435286A - Method for producing accelerating agent by using red mud - Google Patents
Method for producing accelerating agent by using red mud Download PDFInfo
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- CN103435286A CN103435286A CN2013103794145A CN201310379414A CN103435286A CN 103435286 A CN103435286 A CN 103435286A CN 2013103794145 A CN2013103794145 A CN 2013103794145A CN 201310379414 A CN201310379414 A CN 201310379414A CN 103435286 A CN103435286 A CN 103435286A
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- red mud
- accelerating chemicals
- aluminum oxide
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- oxide clinker
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Abstract
The invention relates to a method for producing an accelerating agent by using red mud. The method takes the red mud as a main material and comprises the following steps of blending the following raw materials in percentage by weight: 50% of red mud, 9%-12% of high-aluminum ores, 10%-13% of bunker coal, 10%-12% of sodium carbonate and 15%-20% of limestone; carrying out mixing, ball milling and high-temperature calcination on the raw materials to generate alumina clinker; then mixing with an admixture, and crushing to prepare the accelerating agent. The method disclosed by the invention solves the problem of comprehensive utilization of the red mud and has very high environmental benefit and economic benefit.
Description
Technical field
The invention belongs to the comprehensive utilization of red mud, is to take red mud as main raw production accelerating chemicals specifically.
Technical background
The contaminative waste residue of discharging when red mud is Aluminium industry extraction aluminum oxide.Accelerating chemicals is to mix the admixture that can make the rapid setting and harden of concrete in concrete, and its main component is that aluminum oxide clinker (being the grog that bauxitic clay, soda ash, Wingdale are fired in proportion) is made through levigate.
Chinese patent CN1194926C " shotcrete accelerator " disclosed accelerating chemicals manufacture method, by weight the bauxitic clay by 35%, 24% soda ash, 30% Wingdale, 11% coal is mixed with raw material, and pulverize enters 1250 ℃ of high temperature furnace sections and burns till aluminum oxide clinker, aluminum oxide clinker is by weight rear pulverize that the boiling furnace slag of the aluminum oxide clinker powder of 40-60% and 40-60% is stirred, and fineness is less than 15% and gets final product.
The disclosed accelerating chemicals manufacture method of Chinese patent CN101935178A " accelerating chemicals ", by weight the bauxitic clay by 35%, 24% soda ash, 30% Wingdale, 11% coal is mixed with raw material, pulverize, enter 1250 ℃ of high temperature furnace sections and burn till aluminum oxide clinker, the aluminum oxide clinker pulverize, fineness is less than 15%, after the flyash of the aluminum oxide clinker powder of 40-60% and 40-60% is stirred, gets final product.
The disclosed accelerating chemicals manufacture method of Chinese patent CN102584067A " a kind of sprayed concrete of manufacturing with red mud powder accelerating chemicals and manufacture method thereof ", use by mass percentage that the common batching of soda ash 20-23%, bauxitic clay 27-30%, Wingdale 40-43%, bunker coal 9-11% is levigate burns till and make aluminum oxide clinker through 1100 ℃ again, aluminum oxide clinker through grinding machine grinding to 0.080mm square hole sieve tail over<15% after, more by mass percentage 30-50% and the abundant mixing of red mud 70-45% batching can obtain the powder accelerating chemicals.The red mud water ratio is lower than 1.5%.
The accelerating chemicals production method that they adopt, be all first to be fired into aluminum oxide clinker, then gets aluminum oxide clinker and mix the stirring of (boiling furnace slag, flyash, red mud) batching outward to form, and mixes outward and do not participate in high-temperature calcination.
Summary of the invention
The purpose of this invention is to provide the method for producing accelerating chemicals with red mud.
Technical scheme of the present invention is as follows:
Produce the method for accelerating chemicals with red mud, the steps include:
(1) raw material weight batching: red mud 50%, high aluminium ore 9～12%, bunker coal 10～13%, sodium carbonate 10～12%, Wingdale 15～20%;
(2) to wear into 80 μ m standard sieve screen over-sizes through ball mill be the fine powder below 10% to raw material, the pellet that is 10-15mm left and right through formed by balling machine;
(3) under 1100-1200 ℃ of conditions, high-temperature calcination becomes aluminum oxide clinker;
(4) to wear into 80 μ m standard sieve screen over-sizes through grinding machine again be that fine powder below 15% obtains the accelerating chemicals masterbatch to aluminum oxide clinker;
(5) the accelerating chemicals masterbatch can obtain accelerating chemicals with mixing after fully mixing in proportion outward.
Produce the method for accelerating chemicals with red mud, the steps include:
(1) the raw material material by weight: red mud 50%, high aluminium ore 9～12%, bunker coal 10～13%, sodium carbonate 10～12%, Wingdale 15～20%;
(2) to wear into 80 μ m standard sieve screen over-sizes through ball mill be the fine powder below 10% to raw material, the pellet that is 10-15mm left and right through formed by balling machine;
(3) under 1100-1200 ℃ of conditions, high-temperature calcination becomes aluminum oxide clinker;
(4) aluminum oxide clinker in proportion fully mixes that through grinding machine wore into 80 μ m standard sieve screen over-sizes be fine powder 15% below obtain accelerating chemicals with mixing outward again.
Mix outward can at normal temperatures not with any material that meets building operation of aluminum oxide clinker generation chemical reaction, as flyash, stone flour, slag ash etc.
Described red mud water ratio is lower than 6%.
Described accelerating chemicals masterbatch or aluminum oxide clinker and to mix mass ratio outward be 1:0.5-3.
Described accelerating chemicals masterbatch or aluminum oxide clinker and to mix mass ratio outward be 1:1.
Beneficial effect of the present invention:
The accelerating chemicals that l, the present invention produce be take red mud as main raw, solves the comprehensive utilization of red mud, has very high environmental benefit.
2, the present invention and aluminum oxide clinker add the outer mode of production of mixing and compare, raw material per ton are saved high aluminium ore 230-260kg, soda ash 120-140kg, Wingdale 150-200kg, high-temperature calcination is 35% calculating by loss on ignition, aluminum oxide clinker per ton is saved high aluminium ore 350-400kg, soda ash 180-210kg, Wingdale 230-300kg, consume red mud 769kg, save Mineral resources, there is good economic benefit and social benefit.
3, the accelerating chemicals that the accelerating chemicals that the present invention produces is mixed red mud production than aluminum oxide clinker is compared, red mud participates in high-temperature calcination and generates aluminum oxide clinker, the accelerating chemicals generated is short time of coagulation, staging life, is long, from red mud, as mixing outward, with aluminum oxide clinker, to be mixed into the accelerating chemicals process obviously different, are the methods of two kinds of different concepts.The present invention mainly utilizes the elementary composition of red mud, takes full advantage of Na in red mud
2o, Al
2o
3,caO, SiO
2deng composition.
4, the accelerating chemicals that the present invention produces is functional, initial set 1 minute and 50 seconds, and final set 5 minutes and 30 seconds, spray the concrete early strength high, and its, ultimate compression strength storage rate reached 82% in 28 day length of time.
Embodiment
In order to make content of the present invention more be convenient to understand, below in conjunction with embodiment, technical solutions according to the invention are described further.
Embodiment mono-
(1) raw material weight batching: water ratio is lower than 6% red mud 50%, high aluminium ore 10%, bunker coal 12%, sodium carbonate 11%, Wingdale 15%;
(2) to wear into 80 μ m standard sieve screen over-sizes through ball mill be the fine powder below 10% to raw material, the pellet that is 10-15mm left and right through formed by balling machine;
(3) under 1100-1200 ℃ of conditions, high-temperature calcination becomes aluminum oxide clinker in 30 minutes;
(4) to wear into 80 μ m standard sieve screen over-sizes through grinding machine again be that fine powder below 15% obtains the accelerating chemicals masterbatch to aluminum oxide clinker;
(5) accelerating chemicals masterbatch and flyash in mass ratio 1:2 can obtain accelerating chemicals after fully mixing.
Embodiment bis-
(1) raw material weight batching: water ratio is lower than 6% red mud 50%, high aluminium ore 10%, bunker coal 12%, sodium carbonate 11%, Wingdale 15%;
(2) to wear into 80 μ m standard sieve screen over-sizes through ball mill be the fine powder below 10% to raw material, the pellet that is 10-15mm left and right through formed by balling machine;
(3) under 1100-1200 ℃ of conditions, high-temperature calcination becomes aluminum oxide clinker in 30 minutes;
(4) aluminum oxide clinker and slag ash in mass ratio 1:1 fully mix again that to wear into 80 μ m standard sieve screen over-sizes through grinding machine be that fine powder below 15% obtains accelerating chemicals.
The accelerating chemicals that the present invention produces is functional, initial set 1 minute and 50 seconds, and final set 5 minutes and 30 seconds, spray the concrete early strength high, and its, ultimate compression strength storage rate reached 82% in 28 day length of time.
Claims (8)
1. produce the method for accelerating chemicals with red mud, the steps include:
(1) the raw material material by weight: red mud 50%, high aluminium ore 9～12%, bunker coal 10～13%, sodium carbonate 10～12%, Wingdale 15～20%;
(2) to wear into 80 μ m standard sieve screen over-sizes through ball mill be the fine powder below 10% to raw material, the pellet that is 10-15mm left and right through formed by balling machine;
(3) under 1100-1200 ℃ of conditions, high-temperature calcination becomes aluminum oxide clinker;
(4) to wear into 80 μ m standard sieve screen over-sizes through grinding machine again be that fine powder below 15% obtains the accelerating chemicals masterbatch to aluminum oxide clinker;
(5) the accelerating chemicals masterbatch can obtain accelerating chemicals with mixing after fully mixing in proportion outward.
2. produce the method for accelerating chemicals with red mud, the steps include:
(1) the raw material material by weight: red mud 50%, high aluminium ore 9～12%, bunker coal 10～13%, sodium carbonate 10～12%, Wingdale 15～20%;
(2) to wear into 80 μ m standard sieve screen over-sizes through ball mill be the fine powder below 10% to raw material, the pellet that is 10-15mm left and right through formed by balling machine;
(3) under 1100-1200 ℃ of conditions, high-temperature calcination becomes aluminum oxide clinker;
(4) aluminum oxide clinker in proportion fully mixes that through grinding machine wore into 80 μ m standard sieve screen over-sizes be fine powder 15% below obtain accelerating chemicals with mixing outward again.
3. according to the described method of producing accelerating chemicals with red mud of claim 1 or 2, it is characterized in that: described red mud water ratio is lower than 6%.
4. according to the described method of producing accelerating chemicals with red mud of claim 1 or 2, it is characterized in that: described outer mixing for flyash, stone flour or slag ash.
5. produce according to claim 1 the method for accelerating chemicals with red mud, it is characterized in that: described accelerating chemicals masterbatch is 1:0.5-3 with mixing mass ratio outward.
6. produce according to claim 2 the method for accelerating chemicals with red mud, it is characterized in that: described aluminum oxide clinker is 1:0.5-3 with mixing mass ratio outward.
7. according to the described method of producing accelerating chemicals with red mud of claim 1 or 5, it is characterized in that: described accelerating chemicals masterbatch is 1:1 with mixing mass ratio outward.
8. according to the described method of producing accelerating chemicals with red mud of claim 2 or 6, it is characterized in that: described aluminum oxide clinker is 1:1 with mixing mass ratio outward.
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| Application Number | Priority Date | Filing Date | Title |
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| CN201310379414.5A CN103435286B (en) | 2013-08-28 | 2013-08-28 | Method for producing accelerating agent by using red mud |
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| CN201310379414.5A CN103435286B (en) | 2013-08-28 | 2013-08-28 | Method for producing accelerating agent by using red mud |
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| CN103435286A true CN103435286A (en) | 2013-12-11 |
| CN103435286B CN103435286B (en) | 2015-02-04 |
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Cited By (2)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN103739221A (en) * | 2013-12-17 | 2014-04-23 | 南充春飞纳米晶硅技术有限公司 | High efficiency accelerator and its production method |
| CN103880321A (en) * | 2014-02-09 | 2014-06-25 | 黄小仙 | Method for preparing cementing material mix of taking alumina clinker as primary raw material |
Citations (3)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN102584067A (en) * | 2012-01-12 | 2012-07-18 | 焦作市新筑王材料科技有限公司 | Powder accelerator for sprayed concrete manufactured by red mud and manufacturing method for powder accelerator |
| CN102718425A (en) * | 2012-07-04 | 2012-10-10 | 欧阳湘新 | Accelerator produced by red mud as main material |
| CN102992684A (en) * | 2011-09-09 | 2013-03-27 | 北京亿维德曼科技发展有限公司 | Bayer red mud cement accelerator and production method |
-
2013
- 2013-08-28 CN CN201310379414.5A patent/CN103435286B/en not_active Expired - Fee Related
Patent Citations (3)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN102992684A (en) * | 2011-09-09 | 2013-03-27 | 北京亿维德曼科技发展有限公司 | Bayer red mud cement accelerator and production method |
| CN102584067A (en) * | 2012-01-12 | 2012-07-18 | 焦作市新筑王材料科技有限公司 | Powder accelerator for sprayed concrete manufactured by red mud and manufacturing method for powder accelerator |
| CN102718425A (en) * | 2012-07-04 | 2012-10-10 | 欧阳湘新 | Accelerator produced by red mud as main material |
Cited By (3)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN103739221A (en) * | 2013-12-17 | 2014-04-23 | 南充春飞纳米晶硅技术有限公司 | High efficiency accelerator and its production method |
| CN103880321A (en) * | 2014-02-09 | 2014-06-25 | 黄小仙 | Method for preparing cementing material mix of taking alumina clinker as primary raw material |
| CN103880321B (en) * | 2014-02-09 | 2016-01-20 | 河南中州路桥建设有限公司 | A kind of take aluminum oxide clinker as the preparation method of the gelling material mixed material of main raw material |
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| CN103435286B (en) | 2015-02-04 |
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