CN202542892U - Settling tank for solid-liquid separation - Google Patents
Settling tank for solid-liquid separation Download PDFInfo
- Publication number
- CN202542892U CN202542892U CN201220116708XU CN201220116708U CN202542892U CN 202542892 U CN202542892 U CN 202542892U CN 201220116708X U CN201220116708X U CN 201220116708XU CN 201220116708 U CN201220116708 U CN 201220116708U CN 202542892 U CN202542892 U CN 202542892U
- Authority
- CN
- China
- Prior art keywords
- settling tank
- feed
- pipe
- subsider
- centerwell
- 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.)
- Expired - Lifetime
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Classifications
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- Y—GENERAL TAGGING OF NEW TECHNOLOGICAL DEVELOPMENTS; GENERAL TAGGING OF CROSS-SECTIONAL TECHNOLOGIES SPANNING OVER SEVERAL SECTIONS OF THE IPC; TECHNICAL SUBJECTS COVERED BY FORMER USPC CROSS-REFERENCE ART COLLECTIONS [XRACs] AND DIGESTS
- Y02—TECHNOLOGIES OR APPLICATIONS FOR MITIGATION OR ADAPTATION AGAINST CLIMATE CHANGE
- Y02P—CLIMATE CHANGE MITIGATION TECHNOLOGIES IN THE PRODUCTION OR PROCESSING OF GOODS
- Y02P20/00—Technologies relating to chemical industry
- Y02P20/10—Process efficiency
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- Separation Of Suspended Particles By Flocculating Agents (AREA)
Abstract
The utility model relates to a settling tank. The settling tank comprises a settling tank body, wherein a central well is arranged at the upper part of the settling tank body; the central well and the settling tank body are arranged concentrically; a feed pipe is arranged at the upper part of the settling tank body; and the rear section of the feed pipe is inserted into the central well. The settling tank is characterized in that the feed pipe is divided into two sections; and the front section of feed pipe extends into a bell mouth of the front part of the rear section of feed pipe to form a Venturi tube. By adoption of the technical scheme, the yield of the settling tank can be increased; the through capacity of the settling tank is improved from 1,500 m<3>/h to 1,800 m<3>/h; the energy consumption of a settling system can be reduced; the part separated from the settling system is changed from forced dilution into self dilution; partial pumps are stopped, so that electric energy is saved; and the consumption of separating a flocculating agent from the settling tank can be further reduced.
Description
Technical field
The utility model belongs to red-mud settlement tripping device in the alumina producing, is specifically related to a kind of solid-liquid separation subsider.
Background technology
In aluminum oxide production process, after the stripping of bauxite process high pressure, form the mixed serum of red mud and sodium aluminate; Slurries get into settling separation system through the dilution back; Red mud is separated with sodium aluminate pulp, and red mud is again through repeatedly washing, to reduce the loss of aluminum oxide and sodium oxide.The size of this operation productive efficiency and normal operation have fundamental influence to quality product, output, production cost and economic benefit.
Along with of the lasting decline of alumina producing raw material bauxite aluminium-silicon than (A/S); Being reduced to more than 6.5 at the beginning of go into operation is present below 5.0; The red mud amount that the unit product aluminum oxide produces has increased more than 20%, has caused very big pressure for red-mud settlement separating, washing system.At present, red-mud settlement separating, washing system is the maximum bottleneck of alumina producing link.
The utility model content
The purpose of the utility model is to solve the above-mentioned technical problem that exists in the prior art, is specifically related to a kind of subsider.
For realizing above-mentioned purpose, the technical scheme that the utility model adopts is following:
The subsider of the utility model comprises the subsider body, is provided with centerwell on subsider body top; Centerwell is provided with the subsider body is concentric; Be provided with feed-pipe on subsider body top, the feed-pipe back segment inserts in the centerwell, and described feed-pipe is two sections; The leading portion feed-pipe stretches in the back segment feed-pipe forward hydraucone, forms venturi tube.
The ratio of the leading portion feed-pipe caliber of said feed-pipe and back segment feed-pipe caliber is 1:1.0-2.0, and leading portion feed-pipe length and back segment feed-pipe length ratio are 1:1.0-2.0.
The 0.10-0.20 that described centerwell diameter is the subsider diameter times, the centerwell degree of depth is 0.25-0.30 a times of the subsider degree of depth.
Adopt technique scheme, can improve the production capacity of subsider, the subsider handling capacity is from 1500m
3/ h brings up to 1800m
3/ h; Can reduce the sedimenting system energy consumption, force dilution to become the separate and subside components of system as directed, stop the part pump, saves energy from dilution; Can further reduce the consumption of separation tank flocculation agent.
Description of drawings
Fig. 1 is the structural representation of the utility model.
Embodiment
The subsider of the utility model comprises subsider body 4, is provided with centerwell 3 on subsider body top; Centerwell 3 and the 4 concentric settings of subsider body; Be provided with feed-pipe on subsider body 4 tops, feed-pipe back segment 2 inserts in the centerwell, and described feed-pipe is two sections; Leading portion feed-pipe 1 stretches in the back segment feed-pipe 2 forward hydraucones, forms venturi tube.
Leading portion feed-pipe 1 caliber of said feed-pipe and the ratio of back segment feed-pipe 2 calibers are 1:1.0-2.0, and leading portion feed-pipe length and back segment feed-pipe length ratio are 1:1.0-2.0.
The 0.10-0.20 that described centerwell diameter is the subsider diameter times, the centerwell degree of depth is 0.25-0.30 a times of the subsider degree of depth.
Claims (3)
1. a subsider comprises the subsider body, is provided with centerwell on subsider body top; Centerwell is provided with the subsider body is concentric; Be provided with feed-pipe on subsider body top, the feed-pipe back segment inserts in the centerwell, and it is characterized in that: described feed-pipe is two sections; The leading portion feed-pipe stretches in the back segment feed-pipe forward hydraucone, forms venturi tube.
2. subsider according to claim 1 is characterized in that: the ratio of said feed-pipe leading portion feed-pipe caliber and back segment feed-pipe caliber is 1:1.0-2.0, and leading portion feed-pipe length and back segment feed-pipe length ratio are 1:1.0-2.0.
3. subsider according to claim 1 and 2 is characterized in that: the 0.10-0.20 that described centerwell diameter is the subsider diameter times, the centerwell degree of depth is 0.25-0.30 a times of the subsider degree of depth.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201220116708XU CN202542892U (en) | 2012-03-26 | 2012-03-26 | Settling tank for solid-liquid separation |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201220116708XU CN202542892U (en) | 2012-03-26 | 2012-03-26 | Settling tank for solid-liquid separation |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| CN202542892U true CN202542892U (en) | 2012-11-21 |
Family
ID=47163558
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN201220116708XU Expired - Lifetime CN202542892U (en) | 2012-03-26 | 2012-03-26 | Settling tank for solid-liquid separation |
Country Status (1)
| Country | Link |
|---|---|
| CN (1) | CN202542892U (en) |
Cited By (2)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN103230684A (en) * | 2013-05-09 | 2013-08-07 | 中南大学 | Double-feed-pipe flat-bottom settling tank |
| CN110090473A (en) * | 2018-01-31 | 2019-08-06 | 沈阳铝镁设计研究院有限公司 | A kind of separation of solid and liquid feeding device |
-
2012
- 2012-03-26 CN CN201220116708XU patent/CN202542892U/en not_active Expired - Lifetime
Cited By (2)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN103230684A (en) * | 2013-05-09 | 2013-08-07 | 中南大学 | Double-feed-pipe flat-bottom settling tank |
| CN110090473A (en) * | 2018-01-31 | 2019-08-06 | 沈阳铝镁设计研究院有限公司 | A kind of separation of solid and liquid feeding device |
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Legal Events
| Date | Code | Title | Description |
|---|---|---|---|
| C14 | Grant of patent or utility model | ||
| GR01 | Patent grant | ||
| CX01 | Expiry of patent term | ||
| CX01 | Expiry of patent term |
Granted publication date: 20121121 |