CN102674877A - Method for producing high-strength light-weight ceramsite by using salty mud - Google Patents
Method for producing high-strength light-weight ceramsite by using salty mud Download PDFInfo
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- CN102674877A CN102674877A CN2012101209087A CN201210120908A CN102674877A CN 102674877 A CN102674877 A CN 102674877A CN 2012101209087 A CN2012101209087 A CN 2012101209087A CN 201210120908 A CN201210120908 A CN 201210120908A CN 102674877 A CN102674877 A CN 102674877A
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- salt slurry
- raw material
- sintering
- strength light
- salty mud
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Abstract
The invention relates to a method for producing high-strength light-weight ceramsite by using salty mud. The technical scheme is as follows: salty mud which is subjected to drying and levigation processing is sent into a weighing hopper; after the salty mud is metered, the salty mud is added into a stirrer; then, coal ash, clay, waste coke powder and water which are metered are added in sequence; after the mixture is evenly stirred, a small quantity of mixture is evenly sent into a pelletizer by a belt conveyor; and a purpose of producing ceramsites of different grain diameters can be produced by controlling the dip angle, the revolving speed, the material adding amount, the water adding amount and the like of the rotating table of the pelletizer. After the pelletized material is discharged from the pelletizer, the pelletized material is sent to a vertical sintering kiln to be sintered by a raw pellet belt conveyor; after the vertical sintering kiln is full of the pelletized material, a kiln bottom is exhausted, a kiln top is ignited, and the material is burnt from top to bottom so as to finish the working procedures of drying, sintering and cooling; the sintered salty mud ceramsite is screened by a finished product belt conveyor; and the sintered salty mud ceramsite is put into storage after being dedusted. The method has the advantages of less equipment, simple and reasonable technology and easiness for realization, and can be used for processing the salty mud produced in the production of the chlor-alkali industry.
Description
Technical field:
The present invention relates to a kind of method of utilizing salt slurry to produce high strength light haydite, particularly be applicable to and handle the salt slurry that produces in the chlor-alkali industry production of caustic soda.
Background technology:
The annual waste salt slurry that produces of China's chlor-alkali industry reaches 50～1,000,000 tons, and the salt slurry staple is Mg (OH)
2, CaCO
3, NaCl and silt particle, salt slurry is a topmost industrial residue after the relay rock ballast, the comprehensive utilization of salt slurry is the problem that domestic and international chlor-alkali production producer pays close attention to for a long time always.The salt slurry that present domestic chlor-alkali enterprise produces adopts mostly topples over the processing mode of burying; Some producers have changed and have toppled over the way of burying in recent years; Through adopting the filter press technique recovered brine; The salt slurry filter cake is used to banket or does other and handle, and have in addition to utilize the salt slurry cement baking and suppress inorganic fiberboard and salt slurry is carried out chemical treatment reclaim the wherein research of effective constituent production chemical product, but these methods can only be extracted part material in the salt slurry; Still have a large amount of wastes effectively to handle, and the recovery is low, cost is high, of poor benefits.
I adopt the primary brine embrane method to remove nitre and ion-exchange membrane electrolysis salt solution production technology at 320,000 tons of/year caustic soda projects of company, the about 0.9 ten thousand tons of salt slurries of the annual generation of this project, and each component and massfraction are in the salt slurry: SiO
2About 50.43%, H
2About 36%, the CaCO of O
3About 8.14%, Mg (OH)
2About 1.09%, the Fe of about 4.34%, NaCl
2O
3About 0.50%; Each component of flyash and massfraction that power plant for self-supply of company produces are: SiO
2About 45.32%, Al
2O
3About 9.82%, the Fe of about 18.93%, CaO
2O
3About 3.50%, the K of about 9.08%, MgO
2About 1.54%, the Na of O
2O is about 0.64%, and the flyash loss on ignition is about 8.76%, through the chemical ingredients of salt slurry and flyash is analyzed, can realize the comprehensive utilization target of salt slurry with the two as the main material production ceramic product.
Summary of the invention:
The invention solves in the prior art and can't realize effective recycling and ecotope is brought dysgenic problem because of salt slurry; And then a kind of method of utilizing salt slurry to produce high strength light haydite is provided; This method is a main raw material with salt slurry and flyash; With clay, useless coke powder and water is auxiliary material, adopts sintering process, produces the high strength light haydite product that meets GB17431.1-2010.
The technical scheme that the present invention adopts is: a kind of method of utilizing salt slurry to produce high strength light haydite of the present invention; Comprise the raw material processing system, raw material metering system, raw material agitator, nodulizer, vertical sintering oven, raw material ball rotary conveyor, finished belt transfer roller, the sack cleaner that link to each other successively; To pass through the salt slurry of the levigate processing of oven dry and send into weighing bucket; Join stirrer after metering; Add flyash, clay, useless coke powder, water more successively through metering; Evenly send into nodulizer on a small quantity through rotary conveyor after stirring, reach the purpose of producing the different-grain diameter haydite through control nodulizer rotating disk inclination angle, rotating speed and feeding quantity, amount of water etc.Material after the balling-up comes out to carry out sintering after the raw material ball rotary conveyor is delivered to vertical sintering oven from nodulizer; After particulate materials fills up; By exhausting at the bottom of the kiln, kiln summit fire is accomplished oven dry, sintering, cooling process thereby material burns from top to bottom; The salt slurry haydite that sintering finishes screens through the finished belt transfer roller, packing warehouse-in after the dedusting.
Described a kind of method of utilizing salt slurry to produce high strength light haydite, the quality percentage composition of main raw material salt slurry and flyash is respectively 30%-40% and 40%-60%.
Described a kind of method of utilizing salt slurry to produce high strength light haydite, the quality percentage composition of auxiliary material clay, useless coke powder and water is respectively 10%-20%, 5%-10% and 0%-5%.
Described a kind of method of utilizing salt slurry to produce high strength light haydite, ceramisite sintered temperature is 1000 ℃-1500 ℃.
Described a kind of method of utilizing salt slurry to produce high strength light haydite, ceramisite sintered temperature can be regulated through the fusing assistant ratio in the design proportioning raw materials.
Described a kind of method of utilizing salt slurry to produce high strength light haydite, the required fusing assistant of sintering ceramsite is K
2O and Na
2O.
Described a kind of method of utilizing salt slurry to produce high strength light haydite, ceramisite sintered institute heat requirement is provided by the carbon burning in useless coke powder and the flyash.
The present invention is through carrying out processing treatment to the salt slurry that produces in the chlor-alkali industry production of caustic soda; Can produce broad-spectrum ceramic product, solve salt slurry and can't realize the effectively difficult problem of comprehensive utilization, realize the target that turns waste into wealth; Practice thrift resource, protected environment.Present device is few, the technology advantages of simple, be prone to implement, and can be widely used in handling the salt slurry that chlor-alkali industry produces in producing.
Description of drawings:
Fig. 1 is the embodiments of the invention process flow sheet;
Among Fig. 1: 1 is that raw material processing system, 2 is that raw material metering system, 3 is that raw material agitator, 4 is that nodulizer, 5 is that vertical sintering oven, 6 is that raw material ball rotary conveyor, 7 is that finished belt transfer roller, 8 is a sack cleaner;
Specific embodiments:
With reference to accompanying drawing 1, present embodiment comprises raw material processing system 1, raw material metering system 2, raw material agitator 3, nodulizer 4, vertical sintering oven 5, raw material ball rotary conveyor 6, finished belt transfer roller 7, the sack cleaner 8 that links to each other successively; To pass through the salt slurry of the levigate processing of oven dry and send into weighing bucket; Join stirrer after metering; Add flyash, clay, useless coke powder, water more successively through metering; Evenly send into nodulizer on a small quantity through rotary conveyor after stirring, reach the purpose of producing the different-grain diameter haydite through control nodulizer rotating disk inclination angle, rotating speed and feeding quantity, amount of water etc.Material after the balling-up comes out to carry out sintering after the raw material ball rotary conveyor is delivered to vertical sintering oven from nodulizer; After particulate materials fills up; By exhausting at the bottom of the kiln, kiln summit fire is accomplished oven dry, sintering, cooling process thereby material burns from top to bottom; The salt slurry haydite that sintering finishes screens through the finished belt transfer roller, packing warehouse-in after the dedusting.
Claims (4)
1. a method of utilizing salt slurry to produce high strength light haydite is characterized in that: comprise the raw material processing system, raw material metering system, raw material agitator, nodulizer, vertical sintering oven, raw material ball rotary conveyor, finished belt transfer roller, sack cleaner, the air that link to each other successively; To pass through the salt slurry of the levigate processing of oven dry and send into weighing bucket; Join stirrer after metering; Add flyash, clay, useless coke powder, water more successively through metering; Evenly send into nodulizer on a small quantity through rotary conveyor after stirring, reach the purpose of producing the different-grain diameter haydite through control nodulizer rotating disk inclination angle, rotating speed and feeding quantity, amount of water etc.Material after the balling-up comes out to carry out sintering after the raw material ball rotary conveyor is delivered to vertical sintering oven from nodulizer; After particulate materials fills up; By exhausting at the bottom of the kiln, kiln summit fire is accomplished oven dry, sintering, cooling process thereby material burns from top to bottom; The salt slurry haydite that sintering finishes screens through the finished belt transfer roller, packing warehouse-in after the dedusting.
2. according to claims 1 described method of utilizing salt slurry to produce high strength light haydite, it is characterized in that: each constituent mass percentage composition is salt slurry 30%-40%, flyash 40%-60%, clay 10%-20%, useless coke powder 5%-10% and water 0%-5% in the raw material.
3. according to claims 1 or the 2 described methods of utilizing salt slurry to produce high strength light haydite, it is characterized in that: ceramisite sintered temperature is 1000 ℃-1500 ℃.
4. according to claims 3 described methods of utilizing salt slurry to produce high strength light haydite, it is characterized in that: the required fusing assistant of sintering ceramsite is K
2O and Na
2O.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN2012101209087A CN102674877A (en) | 2012-04-24 | 2012-04-24 | Method for producing high-strength light-weight ceramsite by using salty mud |
Applications Claiming Priority (1)
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|---|---|---|---|
| CN2012101209087A CN102674877A (en) | 2012-04-24 | 2012-04-24 | Method for producing high-strength light-weight ceramsite by using salty mud |
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| CN102674877A true CN102674877A (en) | 2012-09-19 |
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ID=46807505
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|---|---|---|---|
| CN2012101209087A Pending CN102674877A (en) | 2012-04-24 | 2012-04-24 | Method for producing high-strength light-weight ceramsite by using salty mud |
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Cited By (3)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| RU2572437C1 (en) * | 2014-06-17 | 2016-01-10 | Общество с ограниченной ответственностью "Баскей Керамик" (ООО "Баскей Керамик") | Complex technological line for production of granulated porous material from siliceous raw material |
| CN107044082A (en) * | 2017-05-24 | 2017-08-15 | 云南省交通规划设计研究院 | A kind of environment-friendly type haydite concrete melting ice and snow road surface and preparation method |
| CN107161544A (en) * | 2017-06-05 | 2017-09-15 | 宝钢集团新疆八钢铁有限公司 | Sintered material is with addition of carbide slag device |
Citations (2)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN101445388A (en) * | 2008-12-11 | 2009-06-03 | 中国科学院嘉兴材料与化工技术工程中心 | Porous ceramic grain for disposing wastewater and method for preparing same |
| CN102093004A (en) * | 2010-12-13 | 2011-06-15 | 郭东京 | Composite tailing non-fired and non-steamed building block brick and preparation method thereof |
-
2012
- 2012-04-24 CN CN2012101209087A patent/CN102674877A/en active Pending
Patent Citations (2)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN101445388A (en) * | 2008-12-11 | 2009-06-03 | 中国科学院嘉兴材料与化工技术工程中心 | Porous ceramic grain for disposing wastewater and method for preparing same |
| CN102093004A (en) * | 2010-12-13 | 2011-06-15 | 郭东京 | Composite tailing non-fired and non-steamed building block brick and preparation method thereof |
Cited By (4)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| RU2572437C1 (en) * | 2014-06-17 | 2016-01-10 | Общество с ограниченной ответственностью "Баскей Керамик" (ООО "Баскей Керамик") | Complex technological line for production of granulated porous material from siliceous raw material |
| CN107044082A (en) * | 2017-05-24 | 2017-08-15 | 云南省交通规划设计研究院 | A kind of environment-friendly type haydite concrete melting ice and snow road surface and preparation method |
| CN107044082B (en) * | 2017-05-24 | 2023-04-28 | 云南省交通规划设计研究院 | Environment-friendly ceramsite concrete ice-melting and snow-melting pavement and preparation method thereof |
| CN107161544A (en) * | 2017-06-05 | 2017-09-15 | 宝钢集团新疆八钢铁有限公司 | Sintered material is with addition of carbide slag device |
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Application publication date: 20120919 |