CN114917630B - Red mud sedimentation flocculant adding device - Google Patents
Red mud sedimentation flocculant adding device Download PDFInfo
- Publication number
- CN114917630B CN114917630B CN202210610574.5A CN202210610574A CN114917630B CN 114917630 B CN114917630 B CN 114917630B CN 202210610574 A CN202210610574 A CN 202210610574A CN 114917630 B CN114917630 B CN 114917630B
- Authority
- CN
- China
- Prior art keywords
- flocculant
- straight pipe
- pipe section
- pipe
- orifice
- 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.)
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Links
- 238000004062 sedimentation Methods 0.000 title claims abstract description 34
- 239000007788 liquid Substances 0.000 claims abstract description 7
- 239000006228 supernatant Substances 0.000 claims abstract description 6
- 238000005406 washing Methods 0.000 claims description 15
- 238000012423 maintenance Methods 0.000 abstract description 8
- PNEYBMLMFCGWSK-UHFFFAOYSA-N aluminium oxide Inorganic materials [O-2].[O-2].[O-2].[Al+3].[Al+3] PNEYBMLMFCGWSK-UHFFFAOYSA-N 0.000 abstract description 3
- 238000009434 installation Methods 0.000 abstract description 2
- 238000010586 diagram Methods 0.000 description 2
- 238000010790 dilution Methods 0.000 description 2
- 239000012895 dilution Substances 0.000 description 2
- 238000000034 method Methods 0.000 description 2
- 230000004075 alteration Effects 0.000 description 1
- 230000000694 effects Effects 0.000 description 1
- 238000004519 manufacturing process Methods 0.000 description 1
- 238000012986 modification Methods 0.000 description 1
- 230000004048 modification Effects 0.000 description 1
- 238000000926 separation method Methods 0.000 description 1
- 239000007787 solid Substances 0.000 description 1
- 238000006467 substitution reaction Methods 0.000 description 1
- XLYOFNOQVPJJNP-UHFFFAOYSA-N water Substances O XLYOFNOQVPJJNP-UHFFFAOYSA-N 0.000 description 1
Classifications
-
- B—PERFORMING OPERATIONS; TRANSPORTING
- B01—PHYSICAL OR CHEMICAL PROCESSES OR APPARATUS IN GENERAL
- B01D—SEPARATION
- B01D21/00—Separation of suspended solid particles from liquids by sedimentation
- B01D21/24—Feed or discharge mechanisms for settling tanks
- B01D21/2405—Feed mechanisms for settling tanks
-
- B—PERFORMING OPERATIONS; TRANSPORTING
- B01—PHYSICAL OR CHEMICAL PROCESSES OR APPARATUS IN GENERAL
- B01D—SEPARATION
- B01D21/00—Separation of suspended solid particles from liquids by sedimentation
- B01D21/01—Separation of suspended solid particles from liquids by sedimentation using flocculating agents
Landscapes
- Chemical & Material Sciences (AREA)
- Chemical Kinetics & Catalysis (AREA)
- Separation Of Suspended Particles By Flocculating Agents (AREA)
Abstract
The invention belongs to the technical field of alumina, and mainly relates to a novel red mud sedimentation flocculant adding device, wherein a flanged pipe orifice is welded at an opening of a top cover of a sedimentation tank, a first straight pipe section with the same caliber as the pipe orifice is welded at the lower end of the pipe orifice, and the first straight pipe section is directly inserted below the liquid level of a supernatant layer and/or is welded with a feed pipe of the sedimentation tank; the inside of the pipe orifice is inserted with a flocculant straight pipe section, the bottom of the flocculant straight pipe section extends to the bottom of the first straight pipe section or slightly extends to the bottom of the first straight pipe section, and the flocculant straight pipe section is connected with a flocculant main pipe through a connecting pipe. The invention has the advantages that: 1. the flocculant straight pipe section inside the settling tank is not welded with the settling tank, so that the installation is convenient, and the disassembly is simple. 2. The flocculant adding pipeline is replaced without emptying the sedimentation tank, after the pipeline is alkaline washed, the connecting pipe is removed, the flocculant straight pipe section inserted into the sedimentation tank is extracted, and the flocculant adding pipeline is directly replaced, so that the maintenance time is greatly saved, the labor intensity of maintenance personnel is reduced, and the influence on the operation index of the sedimentation system is reduced.
Description
Technical Field
The invention belongs to the technical field of alumina, and mainly relates to a red mud sedimentation flocculant adding device.
Background
Flocculant is added into the settling tanks of the red mud settling separation washing workshop in alumina production, so that the settling speed of the red mud is increased, the solid content of the underflow is increased, a clear liquid layer with qualified clarity is obtained, and the treatment capacity of the settling tanks is improved.
The current conventional flocculant adding method is to weld a flanged pipe orifice at the top cover opening of the settling tank, and the pipe orifice is directly connected to a flocculant pipeline which is conveyed to the settling tank from the outside of the settling tank. The lower end of the pipe orifice is welded with a straight pipe section with the same specification, and the straight pipe section is directly inserted below the liquid level of the supernatant layer or welded with the feed pipe of the settling tank. The above-mentioned adding mode has the following technical problems: because flocculant needs to be added in multiple points, the addition amount of single-point flocculant is relatively small, and the diameter of a pipeline for adding flocculant is usually small. Meanwhile, because the characteristics of the flocculant are sticky even after dilution, sometimes because the diluted water quality is not pure enough, sometimes because the short-time flocculant is poor in dilution effect and the like, pipelines for adding the flocculant are often blocked, and the maintenance is required to be frequently detached, so that the sedimentation tank is required to be emptied first and then the pipelines are required to be maintained and added during maintenance in the addition mode, the maintenance time is long, and the operation of a sedimentation system is seriously influenced.
Disclosure of Invention
The invention provides a red mud sedimentation flocculant adding method for solving the technical problems that a flocculant pipeline is often blocked, the maintenance time is long, and the operation of a sedimentation system is seriously affected.
In order to achieve the purpose, the invention provides the red mud sedimentation flocculant adding device, a flanged pipe orifice is welded at an opening of a top cover of a sedimentation tank, a first straight pipe section with the same caliber as the pipe orifice is welded at the lower end of the pipe orifice, and the first straight pipe section is directly inserted below the liquid level of a supernatant layer and/or is welded with a feed pipe of the sedimentation tank; the inside of the pipe orifice is inserted with a flocculant straight pipe section, the bottom of the flocculant straight pipe section extends to the bottom of the first straight pipe section or slightly extends to the bottom of the first straight pipe section, and the flocculant straight pipe section is connected with a flocculant main pipe through a connecting pipe.
The diameter of the pipe orifice is slightly larger than that of the flocculant straight pipe section.
The flocculant straight pipe section is inserted into the first straight pipe section from the pipe orifice with the flange.
The non-standard flange is arranged above the flanged pipe orifice, the non-standard flange is fixedly connected with the flanged pipe orifice through bolts, the non-standard flange is provided with a flocculant straight pipe orifice and an alkaline washing pipe orifice, the flocculant straight pipe orifice penetrates through the flocculant straight pipe orifice, and the alkaline washing pipe orifice is connected with an alkaline washing pipeline of a sedimentation workshop.
The connecting pipe is a short joint or a hose.
And two ends of the connecting pipe are respectively connected with the flocculant straight pipe section and the flocculant main pipe through pipe joints or flanges.
The number of the flanged pipe orifices is at least three.
The invention has the advantages that:
1. the flocculant straight pipe section inside the settling tank is not welded with the settling tank, so that the installation is convenient, and the disassembly is simple.
2. The flocculant adding pipeline is replaced without emptying the sedimentation tank, after the pipeline is alkaline washed, the connecting pipe is removed, the flocculant straight pipe section inserted into the sedimentation tank is extracted, and the flocculant adding pipeline is directly replaced, so that the maintenance time is greatly saved, the labor intensity of maintenance personnel is reduced, and the influence on the operation index of the sedimentation system is reduced.
3. The connection pipe is a hose, so that the depth of the flocculant adding point can be conveniently adjusted.
Drawings
Fig. 1 is a schematic structural diagram of embodiment 1 of the present invention.
Fig. 2 is a schematic structural diagram of embodiment 2 of the present invention.
In the figure: 1. a pipe orifice; 2. a first straight pipe section; 3. a flocculant straight pipe section; 4. a connecting pipe; 5. a nonstandard flange; 6. alkaline washing the pipe orifice; 7. a settling tank; 8. alkaline washing the pipeline; 9. a flocculant header pipe; 10. sedimentation tank inlet pipe.
Detailed Description
The invention will be better explained by the following detailed description of the embodiments with reference to the drawings.
Example 1
As shown in figure 1, the invention provides a red mud sedimentation flocculant adding device, wherein a flanged pipe orifice 1 is welded at the opening of the top cover of a sedimentation tank 7, three flanged pipe orifices are welded at the lower end of the pipe orifice 1, a first straight pipe section 2 with the same specification as the pipe orifice caliber is welded at the lower end of the pipe orifice 1, one first straight pipe section 2 is directly welded with a sedimentation tank feed pipe 10, and the other two first straight pipe sections 2 are inserted below the liquid level of a supernatant layer; the inside of the pipe orifice 1 is inserted with a flocculant straight pipe section 3, the bottom of the flocculant straight pipe section 3 slightly extends out of the bottom of the first straight pipe section 2, the flocculant straight pipe section 3 is connected with a flocculant main pipe 9 through a connecting pipe 4, and the connecting pipe 4 is a hose. The two ends of the hose are respectively connected with the flocculant straight pipe section 3 and the flocculant main pipe 9 through pipe joints.
The non-standard flange 5 is arranged above the first straight pipe section 2 which is directly welded with the sedimentation tank feed pipe 10, the non-standard flange 5 is fixedly connected with the pipe orifice 1 with the flange through bolts, the flocculant straight pipe section pipe orifice and the alkaline washing pipe orifice 6 are arranged on the non-standard flange 5, the flocculant straight pipe section 3 penetrates through the flocculant straight pipe section pipe orifice, and the alkaline washing pipe orifice 6 is connected with the alkaline washing pipe 8 of the sedimentation workshop.
The diameter of the pipe orifice 1 is slightly larger than that of the flocculant straight pipe section 3.
The flocculant straight pipe section 3 is inserted into the first straight pipe section 2 from the flanged pipe orifice 1.
Example 2
As shown in fig. 2, the invention provides a red mud sedimentation flocculant adding device, wherein a flanged pipe orifice 1 is welded at the opening of the top cover of a sedimentation tank 7, three flanged pipe orifices are welded at the lower end of the pipe orifice 1, a first straight pipe section 2 with the same caliber as the pipe orifice is welded at the lower end of the pipe orifice, one first straight pipe section 2 is directly welded with a sedimentation tank feed pipe 10, and the other two first straight pipe sections 2 are inserted below the liquid level of a supernatant layer; the inside of the pipe orifice 1 is inserted with a flocculant straight pipe section 3, the bottom of the flocculant straight pipe section 3 extends to the bottom of the first straight pipe section 2, the flocculant straight pipe section 3 is connected with a flocculant main pipe 9 through a connecting pipe 4, and the connecting pipe 4 is a short joint. And two ends of the short section are respectively connected with the flocculant straight pipe section 3 and the flocculant main pipe 9 through flanges.
The diameter of the pipe orifice 1 is slightly larger than that of the flocculant straight pipe section 3.
The flocculant straight pipe section 3 is inserted into the first straight pipe section 2 from the flanged pipe orifice 1.
The non-standard flanges 5 are arranged above all flanged pipe orifices 1, the non-standard flanges 5 are fixedly connected with the flanged pipe orifices 1 through bolts, flocculant straight pipe orifice and alkaline washing pipe orifice 6 are arranged on the non-standard flanges 5, the flocculant straight pipe orifice 3 penetrates through the flocculant straight pipe orifice, and the alkaline washing pipe orifice 6 is connected with an alkaline washing pipeline 8 of a sedimentation workshop.
While embodiments of the present invention have been shown and described above, it will be understood that the above embodiments are illustrative and not to be construed as limiting the invention, and that alterations, modifications, substitutions and variations may be made in the above embodiments by those skilled in the art within the scope of the invention.
Claims (3)
1. A red mud sedimentation flocculant adding device is characterized in that a pipe orifice with a flange is welded at an opening of a top cover of a sedimentation tank, a first straight pipe section with the same caliber as the pipe orifice is welded at the lower end of the pipe orifice, and the first straight pipe section is directly inserted below the liquid level of a supernatant layer and/or is welded with a feed pipe of the sedimentation tank; a flocculant straight pipe section is inserted into the pipe orifice, the bottom of the flocculant straight pipe section extends to the bottom of the first straight pipe section or slightly extends to the bottom of the first straight pipe section, and the flocculant straight pipe section is connected with a flocculant main pipe through a connecting pipe; the connecting pipe is a hose; two ends of the hose are respectively connected with the flocculant straight pipe section and the flocculant main pipe through pipe joints; the flocculant straight pipe section passes through the pipe orifice with the flange and is inserted into the first straight pipe section; the non-standard flange is arranged above the flanged pipe orifice, the non-standard flange is fixedly connected with the flanged pipe orifice through bolts, the non-standard flange is provided with a flocculant straight pipe orifice and an alkaline washing pipe orifice, the flocculant straight pipe orifice penetrates through the flocculant straight pipe orifice, and the alkaline washing pipe orifice is connected with an alkaline washing pipeline of a sedimentation workshop.
2. The red mud settling flocculant adding device of claim 1, wherein the diameter of the pipe orifice is slightly larger than the diameter of the flocculant straight pipe section.
3. The red mud settling flocculant adding device of claim 1, wherein the number of flanged nozzles is at least three.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN202210610574.5A CN114917630B (en) | 2022-06-01 | 2022-06-01 | Red mud sedimentation flocculant adding device |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN202210610574.5A CN114917630B (en) | 2022-06-01 | 2022-06-01 | Red mud sedimentation flocculant adding device |
Publications (2)
| Publication Number | Publication Date |
|---|---|
| CN114917630A CN114917630A (en) | 2022-08-19 |
| CN114917630B true CN114917630B (en) | 2024-01-26 |
Family
ID=82813444
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN202210610574.5A Active CN114917630B (en) | 2022-06-01 | 2022-06-01 | Red mud sedimentation flocculant adding device |
Country Status (1)
| Country | Link |
|---|---|
| CN (1) | CN114917630B (en) |
Citations (7)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| US4059531A (en) * | 1974-08-08 | 1977-11-22 | Societe Degremont | Automatic sludge extraction and washing device for use in a water treatment settling apparatus |
| CN2865824Y (en) * | 2006-01-20 | 2007-02-07 | 沈阳铝镁设计研究院 | Loading system with Deep Cone setting Tank |
| CN101172630A (en) * | 2007-10-08 | 2008-05-07 | 中国铝业股份有限公司 | Flocculating agent formulation and adding method |
| CN102188841A (en) * | 2010-03-09 | 2011-09-21 | 沈阳铝镁设计研究院有限公司 | Sedimentation tank with diluting and mixing functions |
| CN202643342U (en) * | 2012-05-18 | 2013-01-02 | 义马煤业集团股份有限公司 | Hydraulic mixing tank system |
| CN202860190U (en) * | 2012-08-28 | 2013-04-10 | 山东南山铝业股份有限公司 | Settling tank with scab cleaning function |
| CN109678185A (en) * | 2018-12-18 | 2019-04-26 | 杭州科创有色金属研究有限公司 | A kind of devices and methods therefor for crude liquid refining in alumina producing |
-
2022
- 2022-06-01 CN CN202210610574.5A patent/CN114917630B/en active Active
Patent Citations (7)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| US4059531A (en) * | 1974-08-08 | 1977-11-22 | Societe Degremont | Automatic sludge extraction and washing device for use in a water treatment settling apparatus |
| CN2865824Y (en) * | 2006-01-20 | 2007-02-07 | 沈阳铝镁设计研究院 | Loading system with Deep Cone setting Tank |
| CN101172630A (en) * | 2007-10-08 | 2008-05-07 | 中国铝业股份有限公司 | Flocculating agent formulation and adding method |
| CN102188841A (en) * | 2010-03-09 | 2011-09-21 | 沈阳铝镁设计研究院有限公司 | Sedimentation tank with diluting and mixing functions |
| CN202643342U (en) * | 2012-05-18 | 2013-01-02 | 义马煤业集团股份有限公司 | Hydraulic mixing tank system |
| CN202860190U (en) * | 2012-08-28 | 2013-04-10 | 山东南山铝业股份有限公司 | Settling tank with scab cleaning function |
| CN109678185A (en) * | 2018-12-18 | 2019-04-26 | 杭州科创有色金属研究有限公司 | A kind of devices and methods therefor for crude liquid refining in alumina producing |
Also Published As
| Publication number | Publication date |
|---|---|
| CN114917630A (en) | 2022-08-19 |
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