CN101705025A - Method for producing building materials by red mud and lime mud - Google Patents
Method for producing building materials by red mud and lime mud Download PDFInfo
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- CN101705025A CN101705025A CN200910180902A CN200910180902A CN101705025A CN 101705025 A CN101705025 A CN 101705025A CN 200910180902 A CN200910180902 A CN 200910180902A CN 200910180902 A CN200910180902 A CN 200910180902A CN 101705025 A CN101705025 A CN 101705025A
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Abstract
The invention provides a method for producing building materials by red mud and lime mud, and relates to the field of inorganic chemical industry. The method comprises the steps of: A, mixing 100 portions of lime mud and 300 to 1,000 portions of water (containing 5 percent sulfuric acid) in the weight ratio; B, stirring the mixture evenly, and pumping the mixture into a press filter by a mud pump; and C, detecting filter cakes which are obtained by filter-pressing the mixture (the chlorine content is less than 1 percent). The method has the advantages of reasonably utilizing industrial wastes such as the red mud, the lime mud and the like, eliminating the biggest hidden trouble restricting the development of relevant enterprises, reducing environmental pollution, saving a large amount of occupied land and raw materials for buildings, and making the enterprises of producing soda and aluminum oxide walk on a road of sustainable development.
Description
Technical field:
The present invention relates to a kind of field of inorganic chemical engineering, is the method that industrial refuse is handled, regenerates, utilized, and especially relates to the method for utilizing red mud, white clay to produce wall putty.
Background technology:
Red mud is meant the industrial refuse that discharges in Bayer process and the sintering process production alumina process, and Bayer process is rust, and sintering process is khaki color, is block after the dehydration.The major ingredient of red mud is silicon-dioxide, ferric oxide, aluminium sesquioxide, calcium oxide, secondly is magnesium oxide, sodium oxide, potassium oxide.
White clay is meant the industrial refuse that discharges in the solvay soda process production soda ash process, and the paste that is white in color, major ingredient are lime carbonate, secondly are calcium chloride, magnesium, sodium etc.
At present, fast development along with national economy, the continuous increase of soda ash and aluminum oxide output, the quantity discharged of red mud and white clay is increasing, 4,000 ten thousand times/year of red mud quantity dischargeds, and the white clay quantity discharged is at 1,600 ten thousand tons/year, the big industrial refuse discharging of this promise has not only taken a large amount of soils has also been wasted ample resources, handle with the present method of burying, build a dam, storing up, As time goes on, ground available situation will certainly occur not having.
Summary of the invention:
The purpose of this invention is to provide a kind of method of utilizing red mud, white clay to produce material of construction, it can solve the problem that red mud in the industrial refuse that exists in the prior art, white clay etc. can't regenerations, can utilize above-mentioned industrial refuse in a large number, save a large amount of natural resourcess, can reduce pollution on the environment again, simultaneously, make relevant enterprise go on the road of Sustainable development.
In order to solve the existing problem of background technology, the present invention is by the following technical solutions: A, by weight 1000 parts of water of 100 parts of white claies and 300 parts----(containing 5% sulfuric acid) are mixed; B, with the said mixture stirring and evenly mixing, squeeze into pressure filter with slush pump; C, through filter cake after pressure filtration chlorine detection content less than 1%.
Further, the material of described C step adds 20 parts in calcium sulfate, and 2 parts of binding agents of adding also stir.
Further, above-mentioned material enters the Flash Type moisture eliminator and mixes, smashes, dries.
Further, after 20 parts of calcium oxide of 100 parts of addings of described above-mentioned material, 2 parts of binding agents of adding mixed, by the eddy current type difference machine, fineness reached 300 orders-----1000 orders, and the packing back is as inner wall putty.
Further, with above-mentioned reach 100 parts of Bayer process of 300 orders-----1000 order materials or 20 parts of dry mixed of 200 parts of high-alumina cements of red mud from sintering process piece after, carefully to 300 orders-----1000 orders, packing back is as exterior wall putty through the eddy current pulverizing mill.
The material of construction inner wall putty that utilizes the present invention to produce: the calcium sulphate content that white clay transforms is 50%-----70%, add calcium sulfate 20%----30%, chloride content adds the 2%-----4% binding agent less than 1%, and the every technical indicator of inner wall putty can be up to state standards.
The material of construction exterior wall putty that utilizes the present invention to produce: the calcium sulphate content that white clay transforms: 10%----50%, red mud content: 50%--90%, high-alumina cement content: 10%-----30%, binder content: 1%----5%, the every technical indicator of exterior wall putty can be up to state standards
The present invention has following beneficial effect: rationally utilize industrial refuses such as red mud and white clay, removed the maximum hidden danger of restriction relevant enterprise development, reduced environmental pollution and saved a large amount of land occupations and raw material for building, can make soda ash and aluminum oxide enterprise go on the road of Sustainable development.
Description of drawings:
Fig. 1 is the synoptic diagram of the technical indicator of the material of construction inner wall putty produced of the present invention;
Fig. 2 is the synoptic diagram of the technical indicator of the material of construction exterior wall putty produced of the present invention.
Embodiment:
Embodiment one: this embodiment by the following technical solutions: A, by weight 1000 parts of water of 100 parts of white claies and 300 parts----(containing 5% sulfuric acid) are mixed; B, with the said mixture stirring and evenly mixing, squeeze into pressure filter with slush pump; C, through filter cake after pressure filtration chlorine detection content less than 1%.
Further, the material of described C step adds 20 parts in calcium sulfate, and 2 parts of binding agents of adding also stir.
Further, above-mentioned material enters the Flash Type moisture eliminator and mixes, smashes, dries.
Further, after 20 parts of calcium oxide of 100 parts of addings of described above-mentioned material, 2 parts of binding agents of adding mixed, by the eddy current type difference machine, fineness reached 300 orders-----1000 orders, and the packing back is as inner wall putty.
Further, with above-mentioned reach 100 parts of Bayer process of 300 orders-----1000 order materials or 20 parts of dry mixed of 200 parts of high-alumina cements of red mud from sintering process piece after, carefully to 300 orders-----1000 orders, packing back is as exterior wall putty through the eddy current pulverizing mill.
The material of construction inner wall putty that utilizes the present invention to produce, the calcium sulphate content that white clay transforms is 50%-----70%, adds calcium sulfate 20%----30%, and chloride content is less than 1%, add the 2%-----4% binding agent, the every technical indicator of inner wall putty can be up to state standards.
The material of construction exterior wall putty that utilizes the present invention to produce, the calcium sulphate content that white clay transforms: 10%----50%, red mud content: 50%--90%, high-alumina cement content: 10%-----30%, binder content: 1%----5%, the every technical indicator of exterior wall putty can be up to state standards.
This embodiment is rationally utilized industrial refuses such as red mud and white clay, removed the maximum hidden danger of restriction relevant enterprise development, reduced environmental pollution and saved a large amount of land occupations and raw material for building, can make soda ash and aluminum oxide enterprise go on the road of Sustainable development.The material of construction of making of present method is used to make inner, external wall putty.
Embodiment two: this example utilizes red mud.White clay is produced the method for material of construction: add 100 parts of white claies in the pond, add and contain 200 parts in 5% sulfuric acid water------1000 parts started stirring, evenly after, squeeze into pressure filter; Above-mentioned material by press filtration is emitted, 100 parts of filter cakes, 20 parts in calcium sulfate, 2 parts of binding agents---4 parts, be added in and enter flash distillation dryer after being mixed together, after stirring, mix, drying, can pack becomes inner wall putty up to standard; With 100 parts of materials after the flasher oven dry, add 100 parts-----300 parts of red mud siccatives, add 10 parts-----30 parts of high-alumina cements again, add 1-4 part binding agent again, mix to stir entering the eddy current pulverizing mill, levigate reaching becomes exterior wall putty up to standard after 300 orders----, 1000 orders are packed.
Claims (3)
1. a method of utilizing red mud, white clay to produce material of construction is characterized in that A, by weight 1000 parts of water of 100 parts of white claies and 300 parts----(containing 5% sulfuric acid) is mixed; B, with the said mixture stirring and evenly mixing, squeeze into pressure filter with slush pump; C, through filter cake after pressure filtration chlorine detection content less than 1%; Further, the material of described C step adds 20 parts in calcium sulfate, and 2 parts of binding agents of adding also stir; Further, above-mentioned material enters the Flash Type moisture eliminator and mixes, smashes, dries; Further, after 20 parts of calcium oxide of 100 parts of addings of described above-mentioned material, 2 parts of binding agents of adding mixed, by the eddy current type difference machine, fineness reached 300 orders-----1000 orders, and the packing back is as inner wall putty; Further, with above-mentioned reach 100 parts of Bayer process of 300 orders-----1000 order materials or 20 parts of dry mixed of 200 parts of high-alumina cements of red mud from sintering process piece after, carefully to 300 orders-----1000 orders, packing back is as exterior wall putty through the eddy current pulverizing mill.
2. a kind of method of utilizing red mud, white clay to produce material of construction according to claim 1, it is characterized in that the material of construction inner wall putty that utilizes the present invention to produce: the calcium sulphate content that white clay transforms is 50%-----70%, add calcium sulfate 20%----30%, chloride content adds the 2%-----4% binding agent less than 1%.
3. a kind of method of utilizing red mud, white clay to produce material of construction according to claim 1, it is characterized in that the material of construction exterior wall putty that utilizes the present invention to produce: the calcium sulphate content that white clay transforms: 10%---50%, red mud content: 50%--90%, high-alumina cement content: 10%-----30%, binder content: 1%----5%.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN200910180902A CN101705025A (en) | 2009-10-21 | 2009-10-21 | Method for producing building materials by red mud and lime mud |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN200910180902A CN101705025A (en) | 2009-10-21 | 2009-10-21 | Method for producing building materials by red mud and lime mud |
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| CN101705025A true CN101705025A (en) | 2010-05-12 |
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| Application Number | Title | Priority Date | Filing Date |
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| CN200910180902A Pending CN101705025A (en) | 2009-10-21 | 2009-10-21 | Method for producing building materials by red mud and lime mud |
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Cited By (1)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN102070287A (en) * | 2010-12-03 | 2011-05-25 | 广州市天益三和能源环保有限公司 | Process for reducing chloride ions in white mud from ammonia soda plants |
-
2009
- 2009-10-21 CN CN200910180902A patent/CN101705025A/en active Pending
Cited By (2)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN102070287A (en) * | 2010-12-03 | 2011-05-25 | 广州市天益三和能源环保有限公司 | Process for reducing chloride ions in white mud from ammonia soda plants |
| CN102070287B (en) * | 2010-12-03 | 2013-07-03 | 广州市天益三和能源环保有限公司 | Process for reducing chloride ions in white mud from ammonia soda plants |
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Application publication date: 20100512 |