CN101806300A - Underflow pump blowoff valve device and switching method thereof - Google Patents
Underflow pump blowoff valve device and switching method thereof Download PDFInfo
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- CN101806300A CN101806300A CN 201010154791 CN201010154791A CN101806300A CN 101806300 A CN101806300 A CN 101806300A CN 201010154791 CN201010154791 CN 201010154791 CN 201010154791 A CN201010154791 A CN 201010154791A CN 101806300 A CN101806300 A CN 101806300A
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- underflow pump
- valves
- underflow
- recoil water
- blowoff valve
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Abstract
The invention discloses an underflow pump blowoff valve device and a switching method thereof. The device comprises two blowoff valves, each controlling an underflow pump, and two backflush pipes at the rear of the two blowoff valves. The backflush pipes are controlled by two backflush valves. The backflush pipes are set to wash the blowoff valves. When switching the working status from the No.1 underflow pump to the No.2 underflow pump, the No.2 backflush valve and the No.2 blowoff valve are opened in sequence. By utilizing the water pressure, the backflush water washes away the accumulated ore which blocks the No.2 blowoff valve. The invention can bring the underflow pump into production in the shortest period of time, reduce man-made misoperations, and ensure the sound operation of the device.
Description
Technical field
The invention belongs to the long-distance pipe transportation art, particularly relate to a kind of blowoff valve device and switching method thereof of underflow pump.
Background technique
In the long-distance pipe transporting system, dehydrating plant mainly is responsible for carrying the ore pulps such as iron ore concentrate of coming to carry out pulp-water far-end and is separated---i.e. and " dehydration ".Capital equipment when the underflow pump is dehydration has two usually, only need open wherein one when work, does standby for other one.When two underflow pumps need exchange, need open blowdown valve and check whether have ore pulp or recoil water to flow out in the pipeline.But because blowdown valve is not worked for a long time, the part ore pulp is piled up stopped up around the blowdown valve, at this moment just must manually remove, the influence that so both wasted time is produced, certain danger is arranged again, and it is logical also to exist blowdown valve oneself to dash simultaneously, and ore pulp enters the hidden danger that the underflow pump is flooded.
Summary of the invention
In order to address the above problem, the invention provides a kind of underflow pump blowoff valve device, comprise two blowdown valves, control two underflow pumps respectively, also comprise two recoil water pipes, be separately positioned on two blowdown valve rear ends, control respectively by two recoil water valves, blowdown valve is washed.
Wherein two recoil water pipes are separately positioned on 4-8CM place, two blowdown valve rear ends.Two recoil water pipes are connected to the clear water pipe.
The invention also discloses a kind of underflow pump blowoff valve device switching method, when switching to No. two underflow pump works by a underflow pump work, at first open the second recoil water valve, and then No. two blowdown valves are opened, the recoil water conservancy is blocked in No. two blowdown valve long-pending ore deposits on every side with self hydraulic pressure with accumulation and washes open.
Equipment provided by the invention makes the underflow pump to put into production in the shortest time, reduces artificial misoperation, guarantees the good operation of equipment.
Description of drawings
Fig. 1 is a structural representation of the present invention.
Description of reference numerals:
1-clear water pipe; The 2-first recoil water valve;
The 3-second recoil water valve; Underflow pump discharge pipe of 4-;
No. two underflow pump discharge pipes of 5-; No. two underflow pumps of 6-;
Underflow pump of 7-; Blowdown valve of 8-;
No. two blowdown valves of 9-; A recoil of 10-water pipe;
No. two recoils of 11-water pipe.
Embodiment
Below in conjunction with accompanying drawing the present invention is specifically described.
As shown in Figure 1, two underflow pumps 7,6 are respectively by 8,9 controls of two blowdown valves, at 4-8CM place, two blowdown valve rear ends, be connected to a recoil water pipe 10,11 respectively, these two recoil water pipes are connected to clear water pipe 1, by the first recoil water valve 2 and 3 controls of the second recoil water valve, blowdown valve 8,9 is washed respectively.
When 7 work of underflow pump, No. two underflow pumps 8 are standby, around No. two blowdown valves, can pile up some ore pulps, when needs switch to No. two underflow pump 6 work, at first open second flashing valve 3, and then No. two blowdown valves 9 are opened, at this moment the water that recoils can utilize self hydraulic pressure that accumulation is blocked in No. two long-pending ore deposits around the blowdown valve 9 and wash open, in the short time blowdown valve is dashed logical.
When switching to underflow pump 7 job by No. two underflow pumps 6, class of operation seemingly.
Claims (5)
1. underflow pump blowoff valve device, comprise two blowdown valves (8,9), control two underflow pumps (7,6) respectively, it is characterized in that: also comprise two recoil water pipes, be separately positioned on two blowdown valves (8,9) rear end, control respectively by two recoil water valves (2,3), blowdown valve (8,9) is washed.
2. underflow pump blowoff valve device according to claim 1 is characterized in that: two recoil water pipes are separately positioned on two blowdown valves (8,9) rear end 4-8CM place.
3. underflow pump blowoff valve device according to claim 1 and 2 is characterized in that: two recoil water pipes are connected to clear water pipe (1).
4. according to each described underflow pump blowoff valve device of claim 1-3, it is characterized in that: when switching to No. two underflow pumps (6) work by a underflow pump (7) work, at first open the second recoil water valve (3), and then No. two blowdown valves (9) are opened, the recoil water conservancy is blocked in No. two blowdown valves (9) long-pending ore deposit on every side with self hydraulic pressure with accumulation and washes open.
5. underflow pump blowoff valve device switching method, described underflow pump blowoff valve device comprises two blowdown valves (8,9), control two underflow pumps (7 respectively, 6), also comprise two recoil water pipes, be separately positioned on two blowdown valves (8,9) rear end, by two recoil water valves (2,3) control respectively, it is characterized in that: when switching to No. two underflow pumps (6) work by a underflow pump (7) work, at first open the second recoil water valve (3), and then No. two blowdown valves (9) are opened, the recoil water conservancy is blocked in No. two blowdown valves (9) long-pending ore deposit on every side with self hydraulic pressure with accumulation and washes open.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN 201010154791 CN101806300B (en) | 2010-04-26 | 2010-04-26 | Underflow pump blowoff valve device and switching method thereof |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN 201010154791 CN101806300B (en) | 2010-04-26 | 2010-04-26 | Underflow pump blowoff valve device and switching method thereof |
Publications (2)
| Publication Number | Publication Date |
|---|---|
| CN101806300A true CN101806300A (en) | 2010-08-18 |
| CN101806300B CN101806300B (en) | 2013-04-17 |
Family
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Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN 201010154791 Active CN101806300B (en) | 2010-04-26 | 2010-04-26 | Underflow pump blowoff valve device and switching method thereof |
Country Status (1)
| Country | Link |
|---|---|
| CN (1) | CN101806300B (en) |
Cited By (3)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN102192196A (en) * | 2011-05-25 | 2011-09-21 | 云南大红山管道有限公司 | Underflow pump capable of discharging pollution and cleaning automatically and control method thereof |
| CN106439491A (en) * | 2016-09-20 | 2017-02-22 | 中国海洋石油总公司 | Liquid level adjusting valve group for online removing of blockage |
| CN108014524A (en) * | 2018-01-19 | 2018-05-11 | 中冶北方（大连）工程技术有限公司 | A kind of thickener underflow conveying and examination and repair system |
Citations (6)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| JP2003028088A (en) * | 2001-07-18 | 2003-01-29 | Matsushita Seiko Co Ltd | Drainage method |
| CN1704342A (en) * | 2004-06-03 | 2005-12-07 | 北京城市排水集团有限责任公司 | Preliminary sedimentation tank bucket back-flushing method |
| CN201313823Y (en) * | 2008-12-03 | 2009-09-23 | 沈阳铝镁设计研究院 | Device for preventing consolidation |
| CN201334366Y (en) * | 2008-12-17 | 2009-10-28 | 贵阳铝镁设计研究院 | Device for preventing discharge drum of high-efficiency settling tank from being blocked |
| CN101608613A (en) * | 2009-04-09 | 2009-12-23 | 云南大红山管道有限公司 | A kind of zero-disturbance switching method of pipeline transportation standby pump |
| CN201704380U (en) * | 2010-04-26 | 2011-01-12 | 云南大红山管道有限公司 | Pollution discharge valve device of undeflow pumps |
-
2010
- 2010-04-26 CN CN 201010154791 patent/CN101806300B/en active Active
Patent Citations (6)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| JP2003028088A (en) * | 2001-07-18 | 2003-01-29 | Matsushita Seiko Co Ltd | Drainage method |
| CN1704342A (en) * | 2004-06-03 | 2005-12-07 | 北京城市排水集团有限责任公司 | Preliminary sedimentation tank bucket back-flushing method |
| CN201313823Y (en) * | 2008-12-03 | 2009-09-23 | 沈阳铝镁设计研究院 | Device for preventing consolidation |
| CN201334366Y (en) * | 2008-12-17 | 2009-10-28 | 贵阳铝镁设计研究院 | Device for preventing discharge drum of high-efficiency settling tank from being blocked |
| CN101608613A (en) * | 2009-04-09 | 2009-12-23 | 云南大红山管道有限公司 | A kind of zero-disturbance switching method of pipeline transportation standby pump |
| CN201704380U (en) * | 2010-04-26 | 2011-01-12 | 云南大红山管道有限公司 | Pollution discharge valve device of undeflow pumps |
Cited By (3)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN102192196A (en) * | 2011-05-25 | 2011-09-21 | 云南大红山管道有限公司 | Underflow pump capable of discharging pollution and cleaning automatically and control method thereof |
| CN106439491A (en) * | 2016-09-20 | 2017-02-22 | 中国海洋石油总公司 | Liquid level adjusting valve group for online removing of blockage |
| CN108014524A (en) * | 2018-01-19 | 2018-05-11 | 中冶北方（大连）工程技术有限公司 | A kind of thickener underflow conveying and examination and repair system |
Also Published As
| Publication number | Publication date |
|---|---|
| CN101806300B (en) | 2013-04-17 |
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