CN1724377A - Tech. for filtering and transporting of red mud - Google Patents
Tech. for filtering and transporting of red mud Download PDFInfo
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- CN1724377A CN1724377A CN 200510200380 CN200510200380A CN1724377A CN 1724377 A CN1724377 A CN 1724377A CN 200510200380 CN200510200380 CN 200510200380 CN 200510200380 A CN200510200380 A CN 200510200380A CN 1724377 A CN1724377 A CN 1724377A
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- red mud
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Abstract
A technology for filtering and transporting red mud includes such steps as delivering red mud from de-posting pool to slurry pool, press filtering by plate-frame filter press to obtain filtrate and cake, depositing the filtrate, and using truck to transport the cake to stacking yard. Its advantage is low cost.
Description
Technical field:
The present invention relates to filtering red mud and delivery technology in a kind of aluminum oxide production process, particularly a kind of filtering red mud and delivery technology that is used for the small scale aluminum oxide factory production process belongs to the technical field of process for making alumina.
Background technology: supply falls short of demand for a long time owing to China's aluminum oxide output at present, and the enthusiasm of each ground small scale aluminum oxide factory is very high.Small scale aluminum oxide factory is compared with Da Chang, because it is mainly by private enterprise investment, and private enterprise's financial strain often requires construction investment to economize as much as possible.It is one of main production process of alumina producer that filtering red mud is carried, and the filtering red mud of present large-scale alumina producer adopts the 100m of German Dorr company usually
2Drum vacuumfilter, red mud is carried the surge pump (minority adopts the impeller pump of homemade plural serial stage) of the Dutch GEHO of main employing company, the red mud line of pipes is usually at 5～15km (containing red mud dump periphery pipeline installation), the red mud pipeline takes up an area of more, and import equipment is many, it is big to take up an area of, and used investment is also very big, build as small scale aluminum oxide factory, above technical scheme often can't be born economically because investment is too big, therefore is badly in need of a kind of technical scheme of less investment.
Summary of the invention:
The objective of the invention is to: at China's small scale aluminum oxide factory less investment, characteristics that mass flow is little, provide a kind of suitable small scale aluminum oxide factory characteristics, technology is reliable and the filtering red mud and the delivery technology of reduced investment, to overcome above-mentioned the deficiencies in the prior art.
The present invention is achieved in that it will be transported in the red mud slurry vessel (2) by the red mud underflow that last subsider (1) comes, and then the red mud slip is sent in the plate-and-frame filter press (3) carries out press filtration, the red mud filtrate that leaches is sent to last washing settling groove (6) and is carried out the sedimentation processing, and filtering filter cake is discharged in the red mud surge bunker (4), with automobile red mud being sent to red mud dump (5) again stores up, in order as far as possible red mud filter cake to be extracted, after a press filtration finishes, can in plate-and-frame filter press (3), feed pressurized air, further push the moisture content in the red mud filter cake.
Compared with prior art, filtering red mud of the present invention and delivery technology adopt the home-made plate-and-frame filter press to replace the import drumfilter that big factory selects for use to carry out filtering red mud, and its price is very cheap; The import surge pump that the big factory of employing automobile transportation replacement selects for use or the impeller pump of plural serial stage carry out red mud and carry, freight department can entrust outward, do not need investment, and owing to used the automobile transportation, do not need to lay pipeline and the red mud dump periphery pipeline of red mud for alumina plant to the stockyard, save investment, be particularly suitable for small scale aluminum oxide factory; Simultaneously, compared with prior art, the present invention also has the following advantages:
(1), technology is reliable.Filtering red mud and carry red mud with automobile with pressure filter, is sophisticated technically.
(2), the filtering red mud filter cake water content of pressure filter is low, be generally about 30%, if control the time and the airflow pressure of blowback wind well, then filter cake moisture content can≤30%, available automobile is carried, and water clock can not occur in the course of conveying.And drum vacuumfilter filter cake water content 〉=35%.
Description of drawings:
Accompanying drawing 1 is a process flow diagram of the present invention.
Embodiment:
Embodiments of the invention: as shown in Figure 1, to be transported to by the red mud underflow of last subsider 1 in the red mud slurry vessel 2, and then with the feed pump red mud slip is sent to and carries out press filtration in the plate-and-frame filter press 3, in order as far as possible the moisture content in the red mud filter cake to be extracted, finishing back feeding pressurized air in plate-and-frame filter press 3 a press filtration pushes red mud filter cake, what wherein plate-and-frame filter press 3 adopted is the mode of intermitten service, in plate-and-frame filter press 3, feed pressurized air so that finish the back a press filtration, then the red mud filtrate that leaches is sent to last washing settling groove 6 and carried out the sedimentation processing, filtering filter cake is discharged in the red mud surge bunker 4, with automobile red mud is sent to red mud dump 5 again and stores up and get final product.
Claims (2)
1. filtering red mud and delivery technology, it is characterized in that: it will be transported in the red mud slurry vessel (2) by the red mud underflow that last subsider (1) comes, and then the red mud slip is sent in the plate-and-frame filter press (3) carries out press filtration, the red mud filtrate that leaches is sent to last washing settling groove (6) and is carried out the sedimentation processing, and filtering filter cake is discharged in the red mud surge bunker (4), with automobile red mud is sent to red mud dump (5) again and stores up.
2. according to described filtering red mud of claim 1 and delivery technology, it is characterized in that: after a press filtration finishes, can in plate-and-frame filter press (3), feed pressurized air, further push the moisture in the red mud filter cake.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CNB2005102003804A CN100343172C (en) | 2005-07-07 | 2005-07-07 | Tech. for filtering and transporting of red mud |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CNB2005102003804A CN100343172C (en) | 2005-07-07 | 2005-07-07 | Tech. for filtering and transporting of red mud |
Publications (2)
| Publication Number | Publication Date |
|---|---|
| CN1724377A true CN1724377A (en) | 2006-01-25 |
| CN100343172C CN100343172C (en) | 2007-10-17 |
Family
ID=35924031
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CNB2005102003804A Expired - Fee Related CN100343172C (en) | 2005-07-07 | 2005-07-07 | Tech. for filtering and transporting of red mud |
Country Status (1)
| Country | Link |
|---|---|
| CN (1) | CN100343172C (en) |
Cited By (5)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| WO2007009374A1 (en) * | 2005-07-18 | 2007-01-25 | China Aluminum International Engineering Corporation Limited | Technique for conveying and filtering red mud |
| CN101879788A (en) * | 2010-03-26 | 2010-11-10 | 何学文 | Mud-water separator |
| CN1843875B (en) * | 2006-04-03 | 2011-01-19 | 贵阳铝镁设计研究院 | Material distribution method for dry-method red mud storage yard and apparatus thereof |
| CN101602526B (en) * | 2008-06-11 | 2012-08-08 | 贵阳铝镁设计研究院有限公司 | Equipment and method for processing red mud in alumina factory |
| CN105481218A (en) * | 2014-09-16 | 2016-04-13 | 沈阳铝镁设计研究院有限公司 | Red mud dry stockpiling method |
Family Cites Families (1)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN1308241C (en) * | 2004-11-25 | 2007-04-04 | 中国铝业股份有限公司 | Method for separating red mud from alumina stripping slurry |
-
2005
- 2005-07-07 CN CNB2005102003804A patent/CN100343172C/en not_active Expired - Fee Related
Cited By (5)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| WO2007009374A1 (en) * | 2005-07-18 | 2007-01-25 | China Aluminum International Engineering Corporation Limited | Technique for conveying and filtering red mud |
| CN1843875B (en) * | 2006-04-03 | 2011-01-19 | 贵阳铝镁设计研究院 | Material distribution method for dry-method red mud storage yard and apparatus thereof |
| CN101602526B (en) * | 2008-06-11 | 2012-08-08 | 贵阳铝镁设计研究院有限公司 | Equipment and method for processing red mud in alumina factory |
| CN101879788A (en) * | 2010-03-26 | 2010-11-10 | 何学文 | Mud-water separator |
| CN105481218A (en) * | 2014-09-16 | 2016-04-13 | 沈阳铝镁设计研究院有限公司 | Red mud dry stockpiling method |
Also Published As
| Publication number | Publication date |
|---|---|
| CN100343172C (en) | 2007-10-17 |
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Owner name: GUIYANG ALUMINIUM AND MAGNESIUM DESIGN INSTITUTE C Free format text: FORMER OWNER: GUIYANG ALUMINIUM AND MAGNESIUM DESIGN INST. Effective date: 20110523 |
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Free format text: CORRECT: ADDRESS; FROM: 550004 NO. 208, BEIJING ROAD, GUIYANG CITY, GUIZHOU PROVINCE TO: 550081 NO.2, JINZHU ROAD, JINYANG NEW DISTRICT, GUIYANG CITY, GUIZHOU PROVINCE |
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Effective date of registration: 20110523 Address after: 550081 Guiyang Province, Jinyang New District, Zhu Zhu Road, No. 2 Patentee after: Guiyang Aluminum & Magnesium Design Institute Co., Ltd. Address before: 550004 No. 208, Beijing Road, Guiyang, Guizhou Patentee before: Guiyang Aluminium and Magnesium Design Inst. |
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