CN103435286B - 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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- CN103435286B CN103435286B CN201310379414.5A CN201310379414A CN103435286B CN 103435286 B CN103435286 B CN 103435286B CN 201310379414 A CN201310379414 A CN 201310379414A CN 103435286 B CN103435286 B CN 103435286B
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- red mud
- accelerating chemicals
- aluminum oxide
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- oxide clinker
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- Curing Cements, Concrete, And Artificial Stone (AREA)
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 be that accelerating chemicals produced by main raw with red mud specifically.
Technical background
The contaminative waste residue of discharging when red mud is Aluminium industry extraction aluminum oxide.Accelerating chemicals mixes the admixture that can make the rapid setting and harden of concrete in concrete, and its main component is that aluminum oxide clinker (i.e. bauxitic clay, soda ash, Wingdale are fired in proportion grog) is made through levigate.
Chinese patent CN1194926C " shotcrete accelerator " disclosed accelerating chemicals manufacture method, by weight by the bauxitic clay of 35%, the soda ash of 24%, the Wingdale of 30%, the coal of 11% is mixed with raw material, pulverize, enters 1250 DEG C of high temperature furnace sections and burns till aluminum oxide clinker, pulverize after the aluminum oxide clinker powder of 40-60% and the boiling furnace slag of 40-60% stir by aluminum oxide clinker by weight, fineness is less than 15%.
The disclosed accelerating chemicals manufacture method of Chinese patent CN101935178A " accelerating chemicals ", by weight by the bauxitic clay of 35%, the soda ash of 24%, the Wingdale of 30%, the coal of 11% is mixed with raw material, pulverize, enter 1250 DEG C of high temperature furnace sections and burn till aluminum oxide clinker, aluminum oxide clinker pulverize, fineness is less than 15%, after the aluminum oxide clinker powder of 40-60% and the flyash of 40-60% being stirred.
Chinese patent CN102584067A " the sprayed concrete powder accelerating chemicals that a kind of red mud manufactures and manufacture method thereof " disclosed accelerating chemicals manufacture method, use soda ash 20-23%, bauxitic clay 27-30%, Wingdale 40-43%, bunker coal 9-11% by mass percentage jointly batching is levigate and burn till obtained aluminum oxide clinker through 1100 DEG C again, aluminum oxide clinker after grinding machine grinding to 0.080mm square hole sieve tails over <15%, more by mass percentage 30-50% and red mud 70-45% fully mixing of preparing burden can obtain powder accelerating chemicals.Red mud water ratio is lower than 1.5%.
The accelerating chemicals production method that they adopt is all first be fired into aluminum oxide clinker, then gets aluminum oxide clinker and mix (boiling furnace slag, flyash, red mud) stirring of preparing burden outward to form, and mixes outward and does not participate in high-temperature calcination.
Summary of the invention
The object 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) raw material wore into 80 μm of standard sieve screen over-sizes through ball mill is the fine powder of less than 10%, is the pellet of about 10-15mm through formed by balling machine;
(3) under 1100-1200 DEG C of conditions, high-temperature calcination becomes aluminum oxide clinker;
(4) aluminum oxide clinker again through grinding machine wore into 80 μm of standard sieve screen over-sizes be less than 15% fine powder namely obtain accelerating chemicals masterbatch;
(5) accelerating chemicals masterbatch with mix outward fully mix in proportion after can obtain accelerating chemicals.
Produce the method for accelerating chemicals with red mud, the steps include:
(1) 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) raw material wore into 80 μm of standard sieve screen over-sizes through ball mill is the fine powder of less than 10%, is the pellet of about 10-15mm through formed by balling machine;
(3) under 1100-1200 DEG C of conditions, high-temperature calcination becomes aluminum oxide clinker;
(4) aluminum oxide clinker with mix outward fully mix in proportion again through grinding machine wore into 80 μm of standard sieve screen over-sizes be less than 15% fine powder namely obtain accelerating chemicals.
Mix outward can at normal temperatures not with any material meeting 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 be outward 1:0.5-3.
Described accelerating chemicals masterbatch or aluminum oxide clinker and to mix mass ratio be outward 1:1.
Beneficial effect of the present invention:
The accelerating chemicals that l, the present invention produce 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 compared with the outer mode of production of mixing, raw material per ton save 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 saves 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 mixes 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 for time of coagulation, staging life, is long, as mixing outward, to be mixed into accelerating chemicals process with aluminum oxide clinker obviously different from red mud, 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 produced of the present invention is functional, initial set 1 point 50 seconds, final set 5 points 30 seconds, and jetting cement early strength is high, and its, ultimate compression strength storage rate reached 82% in 28 day length of time.
Embodiment
More being convenient to make content of the present invention understand, below in conjunction with embodiment, technical solutions according to the invention being described further.
Embodiment one
(1) raw material weight batching: water ratio lower than 6% red mud 50%, high aluminium ore 10%, bunker coal 12%, sodium carbonate 11%, Wingdale 15%;
(2) raw material wore into 80 μm of standard sieve screen over-sizes through ball mill is the fine powder of less than 10%, is the pellet of about 10-15mm through formed by balling machine;
(3) under 1100-1200 DEG C of conditions, high-temperature calcination becomes aluminum oxide clinker in 30 minutes;
(4) aluminum oxide clinker again through grinding machine wore into 80 μm of standard sieve screen over-sizes be less than 15% fine powder namely obtain accelerating chemicals masterbatch;
(5) accelerating chemicals masterbatch and flyash in mass ratio 1:2 can obtain accelerating chemicals after fully mixing.
Embodiment two
(1) raw material weight batching: water ratio lower than 6% red mud 50%, high aluminium ore 10%, bunker coal 12%, sodium carbonate 11%, Wingdale 15%;
(2) raw material wore into 80 μm of standard sieve screen over-sizes through ball mill is the fine powder of less than 10%, is the pellet of about 10-15mm through formed by balling machine;
(3) under 1100-1200 DEG C 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 through grinding machine wore into 80 μm of standard sieve screen over-sizes be less than 15% fine powder namely obtain accelerating chemicals.
The accelerating chemicals that the present invention produces is functional, initial set 1 point 50 seconds, final set 5 points 30 seconds, and jetting cement early strength is 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) raw material by weight: red mud 50%, high aluminium ore 9 ~ 12%, bunker coal 10 ~ 13%, sodium carbonate 10 ~ 12%, Wingdale 15 ~ 20%;
(2) raw material wore into 80 μm of standard sieve screen over-sizes through ball mill is the fine powder of less than 10%, is the pellet of 10-15mm through formed by balling machine;
(3) under 1100-1200 DEG C of conditions, high-temperature calcination becomes aluminum oxide clinker;
(4) aluminum oxide clinker again through grinding machine wore into 80 μm of standard sieve screen over-sizes be less than 15% fine powder namely obtain accelerating chemicals masterbatch;
(5) accelerating chemicals masterbatch with mix outward fully mix in proportion after can obtain accelerating chemicals.
2. produce the method for accelerating chemicals with red mud, the steps include:
(1) raw material by weight: red mud 50%, high aluminium ore 9 ~ 12%, bunker coal 10 ~ 13%, sodium carbonate 10 ~ 12%, Wingdale 15 ~ 20%;
(2) raw material wore into 80 μm of standard sieve screen over-sizes through ball mill is the fine powder of less than 10%, is the pellet of 10-15mm through formed by balling machine;
(3) under 1100-1200 DEG C of conditions, high-temperature calcination becomes aluminum oxide clinker;
(4) aluminum oxide clinker with mix outward fully mix in proportion again through grinding machine wore into 80 μm of standard sieve screen over-sizes be less than 15% fine powder namely obtain accelerating chemicals.
3. according to claim 1 or 2, produce the method for accelerating chemicals with red mud, it is characterized in that: described red mud water ratio is lower than 6%.
4. according to claim 1 or 2, produce the method for accelerating chemicals with red mud, it is characterized in that: mix for flyash, stone flour or slag ash outside described.
5. produce the method for accelerating chemicals according to claim 1 with red mud, it is characterized in that: described accelerating chemicals masterbatch is 1:0.5-3 with mixing mass ratio outward.
6. produce the method for accelerating chemicals according to claim 2 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 claim 1 or 5, produce the method for accelerating chemicals with red mud, it is characterized in that: described accelerating chemicals masterbatch is 1:1 with mixing mass ratio outward.
8. according to claim 2 or 6, produce the method for accelerating chemicals with red mud, it is characterized in that: described aluminum oxide clinker is 1:1 with mixing mass ratio outward.
Priority Applications (1)
| 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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| 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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| CN103435286A CN103435286A (en) | 2013-12-11 |
| CN103435286B true CN103435286B (en) | 2015-02-04 |
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Families Citing this family (3)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN103739221B (en) * | 2013-12-17 | 2015-09-30 | 南充春飞纳米晶硅技术有限公司 | A kind of efficient accelerating chemicals and production method thereof |
| 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 |
| CN116462438A (en) * | 2023-05-22 | 2023-07-21 | 焦作市豫达新材料科技有限公司 | Process for producing cement accelerator by using carbide sludge |
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 |
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2013
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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 |
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