CN101574592A - Device and method for avoiding consolidation of separating underflow - Google Patents
Device and method for avoiding consolidation of separating underflow Download PDFInfo
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- CN101574592A CN101574592A CNA2008100113108A CN200810011310A CN101574592A CN 101574592 A CN101574592 A CN 101574592A CN A2008100113108 A CNA2008100113108 A CN A2008100113108A CN 200810011310 A CN200810011310 A CN 200810011310A CN 101574592 A CN101574592 A CN 101574592A
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- underflow
- consolidation
- separating
- discharging area
- pump
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Abstract
The invention discloses a settling separation device in the production field of metallurgy, in particular relates to a device for avoiding the consolidation of a separating underflow in the settling separation and cleaning process of red mud in the production process of alumina. The device for avoiding the consolidation of the separating underflow comprises a settling bath, an underflow pump and an underflow circulating pump which is arranged in a feeding region at the bottom of the settling bath. The invention has the advantages that technologies combining underflow drain and underflow circulation are adopted to replace an original traditional underflow drain technology so that the feeding region of the settling bath forms a durable circulating disturbed state, the consolidation of the separating underflow is prevented, and liquid solid separation equipment can stably operate for a long time.
Description
Technical field
The present invention relates to a kind of settling separation device of production field of metallurgy, relate in particular to a kind of device that prevents consolidation of separating underflow of the red-mud settlement separating, washing process in aluminum oxide production process.
Background technology
Present stage is in the sedimentation separation process of production field of metallurgy, because the appearance of high rate settling, the underflow of sedimentation separation process contain admittedly since the requirement of production technology all than higher, the mode that conventional process flow adopts the rake machine to combine with the underflow slag stock pump is got rid of height and is contained underflow admittedly.
The technical problem that such production method exists is: as shown in Figure 1, because underflow blanking zone is bigger, and the discharge of underflow can only be carried out at an end in blanking zone, fixed with regard to the underflow of the other end that makes the blanking zone like this owing to can not flow for a long time, simultaneously owing to the long-time running of producing makes consolidation zone increasing, thereby discharging area is stopped up, the normal operation that influence is produced, the difficulty that causes subsider to clear up.
Summary of the invention
The present invention provides a kind of device and method that prevents consolidation of separating underflow in order to solve the problems of the technologies described above, its objective is in order to prevent separating underflow fixedly at discharging area, makes the liquid-solid separation equipment can smooth long term running, thereby is that factory saves cost.
For reaching above-mentioned purpose, the present invention is achieved in that a kind of device that prevents consolidation of separating underflow, comprises subsider, underflow pump, and discharging area is provided with the underflow circulating pump in the bottom of subsider.
The discharge end of described bottom discharging area is connected with the underflow circulating pump by pipeline, and the underflow circulating pump is connected by the consolidation zone of pipeline with the bottom discharging area.
A kind of method that prevents consolidation of separating underflow is made of following step: will be discharged by the underflow pump at the underflow of subsider bottom discharging area; The underflow of while bottom discharging area is recycled to consolidation zone disturbance underflow by the underflow circulating pump flows it.
Advantage of the present invention and effect are as follows:
The present invention has adopted row's underflow and underflow circulation process combined to replace original tradition row underflow technology, make the discharging area of subsider form long-term circulation state of disturbance, prevent that separating underflow is fixed at discharging area, make the liquid-solid separation equipment can smooth long term running.
Description of drawings
Fig. 1 is the structural representation of tradition row underflow.
Fig. 2 is the structural representation that prevents the consolidation of separating underflow device of the present invention.
Among the figure: 1, subsider; 2, underflow pump; 3, consolidation zone; 4, underflow circulating pump.
The specific embodiment
Below embodiments of the invention are described in detail in conjunction with the accompanying drawings, but protection scope of the present invention is not limit by embodiment.
As shown in Figure 2, a kind of device that prevents consolidation of separating underflow of the present invention, comprise subsider 1, underflow pump 2, discharging area is provided with underflow circulating pump 4 in the bottom of subsider 1, the discharge end of bottom discharging area is connected with underflow circulating pump 4 by pipeline, and underflow circulating pump 4 is connected with the consolidation zone 3 of bottom discharging area by pipeline.Underflow is that sedimentation separation process bottom contains higher solidliquid mixture admittedly; Consolidation zone contains the long-term underflow knot territory, hard area of not flowing and forming of underflow admittedly for height; The bottom discharging area is the funnel area that subsider bottom and underflow pump link.
A kind of method that prevents consolidation of separating underflow is made of following step: will be discharged by the underflow pump at the underflow of subsider bottom discharging area; The underflow of while bottom discharging area is recycled to consolidation zone disturbance underflow by the underflow circulating pump flows it.Make the liquid-solid separation equipment can smooth long term running, thereby make the underflow in the discharging area of bottom can not be fixed, ensure subsider operation steady in a long-term.
Claims (3)
1, a kind of device that prevents consolidation of separating underflow comprises subsider, underflow pump, it is characterized in that being provided with the underflow circulating pump at the bottom of subsider discharging area.
2, the device that prevents consolidation of separating underflow according to claim 1 is characterized in that the discharge end of described bottom discharging area is connected with the underflow circulating pump by pipeline, and the underflow circulating pump is connected by the consolidation zone of pipeline with the bottom discharging area.
3, a kind of method that prevents consolidation of separating underflow is characterized in that being made of following step: will be discharged by the underflow pump at the underflow of subsider bottom discharging area; The underflow of while bottom discharging area is recycled to consolidation zone disturbance underflow by the underflow circulating pump flows it.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CNA2008100113108A CN101574592A (en) | 2008-05-08 | 2008-05-08 | Device and method for avoiding consolidation of separating underflow |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CNA2008100113108A CN101574592A (en) | 2008-05-08 | 2008-05-08 | Device and method for avoiding consolidation of separating underflow |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| CN101574592A true CN101574592A (en) | 2009-11-11 |
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Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CNA2008100113108A Pending CN101574592A (en) | 2008-05-08 | 2008-05-08 | Device and method for avoiding consolidation of separating underflow |
Country Status (1)
| Country | Link |
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| CN (1) | CN101574592A (en) |
Cited By (1)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN104941262A (en) * | 2014-12-24 | 2015-09-30 | 飞翼股份有限公司 | Thickener and bottom flow circulating system thereof |
-
2008
- 2008-05-08 CN CNA2008100113108A patent/CN101574592A/en active Pending
Cited By (2)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN104941262A (en) * | 2014-12-24 | 2015-09-30 | 飞翼股份有限公司 | Thickener and bottom flow circulating system thereof |
| CN104941262B (en) * | 2014-12-24 | 2017-04-12 | 飞翼股份有限公司 | Thickener and bottom flow circulating system thereof |
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| PB01 | Publication | ||
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| C12 | Rejection of a patent application after its publication | ||
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Application publication date: 20091111 |