CN102718238A - Washing, settling and separation method for Bayer red mud - Google Patents
Washing, settling and separation method for Bayer red mud Download PDFInfo
- Publication number
- CN102718238A CN102718238A CN2012102060741A CN201210206074A CN102718238A CN 102718238 A CN102718238 A CN 102718238A CN 2012102060741 A CN2012102060741 A CN 2012102060741A CN 201210206074 A CN201210206074 A CN 201210206074A CN 102718238 A CN102718238 A CN 102718238A
- Authority
- CN
- China
- Prior art keywords
- swirler
- washing
- red mud
- subsider
- dashpot
- Prior art date
- Legal status (The legal status is an assumption and is not a legal conclusion. Google has not performed a legal analysis and makes no representation as to the accuracy of the status listed.)
- Pending
Links
Images
Abstract
The invention relates to a washing, settling and separation method for Bayer red mud. The method is used for the alumina production industry and is an improvement of washing and separation methods for the Bayer red mud. The method is characterized in that the washing, settling and separation refers to that a settling tank device is additionally provided with a group or multiple groups of swirlers connected with the settling tank to reversely wash the red mud synchronously. On the basis of existing processes of settling and separation, a group or multiple groups of the swirlers connected with the settling tank are additionally arranged to reversely wash the red mud synchronously, so that the washing, settling and separation method for the Bayer red mud is simple, economical, practical and good in using effect, and can effectively reduce equipment investment and is a process capable of improving capacity of a red mud separation and washing system.
Description
Technical field
A kind of washing and depositing separation method of Bayer process red mud relates to a kind of improvement that is used for alumina producing industry Bayer process red mud washing separating method.
Background technology
Bayer process red mud separating, washing operation is alumina producing industry a kind of process method commonly used.Ore pulp after the high pressure stripping is sent into separation tank after dilution; Thick liquid filtering system is sent in its overflow; Major ingredient is that the underflow of red mud then is sent to washing settling groove and carries out secondary or backflush repeatedly; According to the difference of processing mode, wash the back red mud and can reclaim wherein alkali and aluminium, or directly efflux stacking with sintering process.The existing technology of using all adopts subsider (flat or deep-cone settling groove), and along with the continuous decline of bauxite grade, the problem of intrinsic red mud treatment facility scarce capacity makes the reduction of production production capacity, benefit variation.If there is the problem that initial cost is big, floor space big, the transformation cycle is long in the production capacity by traditional method expansion red mud treatment process, especially this problem problem of aluminum oxide enterprise to some moulding is difficult to solve.
Summary of the invention
The objective of the invention is provides a kind of simple to operate to the deficiency of above-mentioned prior art in the red mud treating processes, and result of use is good, and facility investment is few, the washing and depositing separation method of the Bayer process red mud that floor space is little.
The objective of the invention is to realize through following technical scheme.
A kind of washing and depositing separation method of Bayer process red mud is characterized in that it is to set up the swirler-that one or more groups connects with subsider on the subsider device that washing and depositing separates, and carries out the backflush operation to red mud synchronously.
The washing and depositing separation method of a kind of Bayer process red mud of the present invention, its washing and depositing separate and adopt device to comprise that separation tank, washes subsider and two and wash subsider; It is characterized in that the device that adopts also comprises: swirler-and secondary swirler-; Wherein, No. one time the swirler-opening for feed connects with dilution pumps, and swirler-riser and separation tank opening for feed link; The underflow outlet of separation tank is washed subsider with the dashpot and of a swirler-respectively and is linked; The riser of secondary swirler-and one is washed subsider and is linked; One washes subsider underflow outlet washes the subsider opening for feed with secondary swirler-dashpot and two respectively and links.
The washing and depositing separation method of a kind of Bayer process red mud of the present invention; It is characterized in that the device that adopts also comprises swirler-No. three times; No. three times the swirler-opening for feed connects with the dashpot of secondary swirler-through the buffering pump, and the upflow tube of No. three swirler-s returns with the dashpot of a swirler-and connects.
The washing and depositing separation method of a kind of Bayer process red mud of the present invention; It is characterized in that the device that adopts also comprises swirler-No. four times; No. four times the swirler-opening for feed connects with the dashpot of No. three swirler-s through the buffering pump, and the upflow tube of No. four swirler-s returns with the dashpot of secondary swirler-and connects.
The washing and depositing separation method of a kind of Bayer process red mud of the present invention; It is characterized in that the device that adopts also comprises swirler-No. five times; No. five times the swirler-opening for feed connects with the dashpot of No. four swirler-s through the buffering pump, and the upflow tube of No. five swirler-s returns with the dashpot of No. three swirler-s and connects.
The washing and depositing separation method of a kind of Bayer process red mud of the present invention is characterized in that on the dashpot of No. four swirler-s, being provided with the feeding hot-water line.
The washing and depositing separation method of a kind of Bayer process red mud of the present invention is characterized in that washing subsider underflow pipe merging in the dashpot drainage conduit and two of level swirler-not.
The washing and depositing separation method of a kind of Bayer process red mud of the present invention is on existing settlement separate technology basis, through setting up the swirler-that one or more groups connects with subsider; Synchronously red mud is carried out the backflush operation; Method is simple, and is economical and practical, and result of use is good; Can effectively reduce facility investment, improve the technology of red mud separating, washing system production capacity.
Description of drawings
Fig. 1 is the process flow sheet of method of the present invention.
Embodiment
A kind of washing and depositing separation method of Bayer process red mud, it is to set up the swirler-that one or more groups connects with subsider on the subsider device that its washing and depositing separates, and synchronously red mud is carried out the backflush operation.
The washing and depositing separation method of a kind of Bayer process red mud of the present invention, its washing and depositing separate and adopt device to comprise that separation tank, washes subsider and two and wash subsider; The device that adopts also comprises: swirler-and secondary swirler-; Wherein, No. one time the swirler-opening for feed connects with dilution pumps, and swirler-riser and separation tank opening for feed link; The underflow outlet of separation tank is washed subsider with the dashpot and of a swirler-respectively and is linked; The riser of secondary swirler-and one is washed subsider and is linked; One washes subsider underflow outlet washes the subsider opening for feed with secondary swirler-dashpot and two respectively and links.
The washing and depositing separation method of a kind of Bayer process red mud of the present invention; The device that adopts also comprises swirler-No. three times; No. three times the swirler-opening for feed connects with the dashpot of secondary swirler-through the buffering pump, and the upflow tube of No. three swirler-s returns with the dashpot of a swirler-and connects.
The washing and depositing separation method of a kind of Bayer process red mud of the present invention; The device that adopts also comprises swirler-No. four times; No. four times the swirler-opening for feed connects with the dashpot of No. three swirler-s through the buffering pump, and the upflow tube of No. four swirler-s returns with the dashpot of secondary swirler-and connects.
The washing and depositing separation method of a kind of Bayer process red mud of the present invention; The device that adopts also comprises swirler-No. five times; No. five times the swirler-opening for feed connects with the dashpot of No. four swirler-s through the buffering pump, and the upflow tube of No. five swirler-s returns with the dashpot of No. three swirler-s and connects.
The washing and depositing separation method of a kind of Bayer process red mud of the present invention is provided with the feeding hot-water line on the dashpot of No. four swirler-s.
The washing and depositing separation method of a kind of Bayer process red mud of the present invention is washed subsider underflow pipe merging in the dashpot drainage conduit and two of level swirler-not.
Embodiment
Set up five groups of swirler-s that connect with subsider on separation, washing settling groove next door, synchronously Bayer process red mud is carried out the backflush operation, swirler-is adjusted intake pressure according to mass flow.The dilution trap supplied materials advances cyclone classification one time through dilution pumps, and a swirler-overflow is advanced separation tank and separated.Thick liquid filtering system is sent in the separation tank overflow; Part separating underflow is sent to one and washes subsider and two and wash subsider overflow and the overflow of secondary swirler-entering one and wash subsider and carry out once washing, and another part separating underflow is according to dashpot of separation tank mud layer situation improvement.One washes the subsider overflow gets into dilution trap, and a part one is washed sedimentation underflow entering two and washed subsider, and another part underflow is washed subsider mud layer situation according to one and improved the secondary buffer groove.Hot water adding two is washed subsider and is carried out secondary washing, and two wash the subsider underflow removes red mud filter.
Swirler-underflow, part separation tank underflow and No. three swirler-overflows mix, and get into the secondary swirler-through the buffering pump.The overflow of secondary swirler-goes one to wash subsider, and secondary swirler-underflow, part one wash the subsider underflow and No. four swirler-overflows mix, and gets into No. three swirler-s through the buffering pump.No. three swirler-underflows and No. five swirler-overflows mix, and get into No. four swirler-s through the buffering pump.No. four swirler-underflows and hot water mix, and get into No. five swirler-s through the buffering pump.No. five times the swirler-underflow removes red mud filter.
Improve 20% than original red mud processing power behind this scheme implementation.
Claims (7)
1. the washing and depositing separation method of a Bayer process red mud is characterized in that it is to set up the swirler-that one or more groups connects with subsider on the subsider device that washing and depositing separates, and carries out the backflush operation to red mud synchronously.
2. the washing and depositing separation method of a kind of Bayer process red mud according to claim 1, its washing and depositing separate and adopt device to comprise that separation tank, washes subsider and two and wash subsider; It is characterized in that the device that adopts also comprises: swirler-and secondary swirler-; Wherein, No. one time the swirler-opening for feed connects with dilution pumps, and swirler-riser and separation tank opening for feed link; The underflow outlet of separation tank is washed subsider with the dashpot and of a swirler-respectively and is linked; The riser of secondary swirler-and one is washed subsider and is linked; One washes subsider underflow outlet washes the subsider opening for feed with secondary swirler-dashpot and two respectively and links.
3. the washing and depositing separation method of a kind of Bayer process red mud according to claim 1; It is characterized in that the device that adopts also comprises swirler-No. three times; No. three times the swirler-opening for feed connects with the dashpot of secondary swirler-through the buffering pump, and the upflow tube of No. three swirler-s returns with the dashpot of a swirler-and connects.
4. the washing and depositing separation method of a kind of Bayer process red mud according to claim 1; It is characterized in that the device that adopts also comprises swirler-No. four times; No. four times the swirler-opening for feed connects with the dashpot of No. three swirler-s through the buffering pump, and the upflow tube of No. four swirler-s returns with the dashpot of secondary swirler-and connects.
5. the washing and depositing separation method of a kind of Bayer process red mud according to claim 1; It is characterized in that the device that adopts also comprises swirler-No. five times; No. five times the swirler-opening for feed connects with the dashpot of No. four swirler-s through the buffering pump, and the upflow tube of No. five swirler-s returns with the dashpot of No. three swirler-s and connects.
6. the washing and depositing separation method of a kind of Bayer process red mud according to claim 1 is characterized in that on the dashpot of No. four swirler-s, being provided with the feeding hot-water line.
7. the washing and depositing separation method of a kind of Bayer process red mud according to claim 1 is characterized in that washing the merging of subsider underflow pipe in the dashpot drainage conduit and two of level swirler-not.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN2012102060741A CN102718238A (en) | 2012-06-21 | 2012-06-21 | Washing, settling and separation method for Bayer red mud |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN2012102060741A CN102718238A (en) | 2012-06-21 | 2012-06-21 | Washing, settling and separation method for Bayer red mud |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| CN102718238A true CN102718238A (en) | 2012-10-10 |
Family
ID=46944148
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN2012102060741A Pending CN102718238A (en) | 2012-06-21 | 2012-06-21 | Washing, settling and separation method for Bayer red mud |
Country Status (1)
| Country | Link |
|---|---|
| CN (1) | CN102718238A (en) |
Cited By (3)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN103848449A (en) * | 2012-11-28 | 2014-06-11 | 沈阳铝镁设计研究院有限公司 | Red mud separation and washing tank inverting method and its apparatus |
| CN104528785A (en) * | 2014-12-11 | 2015-04-22 | 广西华银铝业有限公司 | Method for improving settling separation performance of bauxite slurry |
| CN105217903A (en) * | 2014-06-26 | 2016-01-06 | 沈阳铝镁设计研究院有限公司 | A kind of equipment configuration method of red-mud settlement and separation washing procedure |
Citations (4)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| US5008089A (en) * | 1988-10-14 | 1991-04-16 | Allied Colloids Limited | Recovery of alumina from bauxite |
| CN101234772A (en) * | 2007-02-02 | 2008-08-06 | 中国铝业股份有限公司 | Separating method for producing sintering process high concentration chamotte exsolution red mud from aluminum oxide |
| CN201136795Y (en) * | 2007-12-07 | 2008-10-22 | 中国铝业股份有限公司 | Settlement separate system for separating aluminum oxide and red mud by bayer process |
| CN101570340A (en) * | 2009-06-05 | 2009-11-04 | 中国铝业股份有限公司 | Separating and washing method of red mud by Bayer process |
-
2012
- 2012-06-21 CN CN2012102060741A patent/CN102718238A/en active Pending
Patent Citations (4)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| US5008089A (en) * | 1988-10-14 | 1991-04-16 | Allied Colloids Limited | Recovery of alumina from bauxite |
| CN101234772A (en) * | 2007-02-02 | 2008-08-06 | 中国铝业股份有限公司 | Separating method for producing sintering process high concentration chamotte exsolution red mud from aluminum oxide |
| CN201136795Y (en) * | 2007-12-07 | 2008-10-22 | 中国铝业股份有限公司 | Settlement separate system for separating aluminum oxide and red mud by bayer process |
| CN101570340A (en) * | 2009-06-05 | 2009-11-04 | 中国铝业股份有限公司 | Separating and washing method of red mud by Bayer process |
Cited By (5)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN103848449A (en) * | 2012-11-28 | 2014-06-11 | 沈阳铝镁设计研究院有限公司 | Red mud separation and washing tank inverting method and its apparatus |
| CN103848449B (en) * | 2012-11-28 | 2015-04-29 | 沈阳铝镁设计研究院有限公司 | Red mud separation and washing tank inverting method and its apparatus |
| CN105217903A (en) * | 2014-06-26 | 2016-01-06 | 沈阳铝镁设计研究院有限公司 | A kind of equipment configuration method of red-mud settlement and separation washing procedure |
| CN105217903B (en) * | 2014-06-26 | 2017-11-10 | 沈阳铝镁设计研究院有限公司 | A kind of equipment configuration method of red- mud settlement and separation washing procedure |
| CN104528785A (en) * | 2014-12-11 | 2015-04-22 | 广西华银铝业有限公司 | Method for improving settling separation performance of bauxite slurry |
Similar Documents
| Publication | Publication Date | Title |
|---|---|---|
| CN105174373B (en) | A method of it reducing condensate polishing treatment regenerative system and mixes fat | |
| CN102718238A (en) | Washing, settling and separation method for Bayer red mud | |
| CN104477956A (en) | Technique for rapid separation and red-mud washing of sodium aluminate solution | |
| CN102120595B (en) | Red mud separating and washing method | |
| CN100998964A (en) | Series red mud clinker dissolving out and red mud separation technology | |
| CN102153213B (en) | Two-stage centrifugal desliming technology | |
| CN103030237A (en) | Treatment device and treatment method for recycling coal slurry sewage | |
| CN203593636U (en) | Multistage red mud reversed washing device | |
| CN101574700B (en) | Method for processing alumina red-mud settlement scrap by Bayer process | |
| CN203620394U (en) | Separating device for rear-earth particles in waste liquor | |
| CN102642854B (en) | Treatment method of red mud in Bayer process production flow of aluminum oxide | |
| CN201997138U (en) | High-efficiency settling tank | |
| CN201324566Y (en) | Leaf filtering system | |
| CN201324569Y (en) | Steel tailing mud treating system | |
| CN103819021A (en) | Method for processing heavy metal waste pipe | |
| CN203754528U (en) | Device for treating waste water during production of glass | |
| CN102390899A (en) | System and method for recycling nickel sulfamic acid electroplating waste water | |
| CN202542892U (en) | Settling tank for solid-liquid separation | |
| CN201658867U (en) | Separation and washing device of settlement tank for acid-soluble slag of fly ash | |
| CN203763997U (en) | Dissolved liquid settling separation washing equipment | |
| CN203021411U (en) | Device for separating and washing white mud slurry | |
| CN100439251C (en) | Composite red mud depositing separating washing method and tank | |
| CN211972000U (en) | Oil field measure waste liquid treatment system-oxidation and filter equipment | |
| CN201592989U (en) | Crude brine clarifying plant | |
| CN1868932A (en) | Red mud settling sand removing method in aluminium oxide production |
Legal Events
| Date | Code | Title | Description |
|---|---|---|---|
| C06 | Publication | ||
| PB01 | Publication | ||
| C10 | Entry into substantive examination | ||
| SE01 | Entry into force of request for substantive examination | ||
| C02 | Deemed withdrawal of patent application after publication (patent law 2001) | ||
| WD01 | Invention patent application deemed withdrawn after publication |
Application publication date: 20121010 |