CN103742397A - Non-interfering switching system of feed pumps and non-interfering switching method - Google Patents

Non-interfering switching system of feed pumps and non-interfering switching method Download PDF

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CN103742397A
CN103742397A CN201410015566.1A CN201410015566A CN103742397A CN 103742397 A CN103742397 A CN 103742397A CN 201410015566 A CN201410015566 A CN 201410015566A CN 103742397 A CN103742397 A CN 103742397A
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valve
feeding pump
pipeline
pump
water
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CN201410015566.1A
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CN103742397B (en
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瞿承中
黄朝兵
杨建�
张黎敏
姬永丽
李龙恒
闵昱辉
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云南大红山管道有限公司
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Abstract

The invention relates to a non-interfering switching system of feed pumps and a non-interfering switching method. The non-interfering switching system comprises a feed pump body A (4), a feed pump body B (10), a stirring tank (1), a clean water pump (12) and a non-interfering pipeline switching device. The feed pump body A (4) is in parallel connection with the feed pump body B (10), namely one used, one spared; a valve B (3) and a valve C (5) are respectively arranged on an input-end pipeline and an output-end pipeline of the feed pump body A (4), a valve F (9) and a valve G (11) are respectively arranged on an input-end pipeline and an out-put end pipeline of the feed pump body B (10); a common input-end pipeline of the feed pump body A (4) and the feed pump body B (10) is connected with the stirring tank (1), a valve A (2) is arranged on the common input-end pipeline, a valve E (8) is arranged on an input-end pipeline of the clean water pump (12), and the input-end pipeline of the clean water pump (12) is connected with an input-end pipeline of the valve A (2); the common output-end pipeline of the feed pump body A (4) and the feed pump body B (10) are connected with a main pressurized pump (7), and a valve D (6) is arranged on the common output-end pipeline.

Description

A kind of noiseless switched system and switching method thereof of feeding pump
Technical field
The present invention relates to a kind of noiseless switched system and switching method thereof of feeding pump, especially relate to the noiseless switched system of feeding pump and the switching method thereof in a kind of long distance high-voltage Slurry Pipeline Transportation field.
Background technique
Feeding pump is the key equipment in long distance high-voltage Slurry Pipeline Transportation field, and it belongs to centrifugal pump type.Feeding pump system is for long distance high-voltage Slurry Pipeline Transportation technology field, and existing technological design adopts the using and the reserved control principle, and a set of equipment normally moves, and another set of device standby is standby.When the equipment of normal operation breaks down, stand-by equipment can come into operation immediately, ensures that upstream device normally moves and avoids next procedure to produce and pauses.Moreover the existence of stand-by equipment can be faulty equipment and wins the valuable repair time.
If Fig. 1 is existing feeding pump system delivery technology switching figure, its working method is as follows:
1,, during feeding pump A slurry body, its supporting valve state is: the valve in open mode has: valve A2, valve B3, valve C5 and valve D6; Valve in closed condition has: valve E8, valve F9 and valve G11.In feeding pump A slurry body process, break down and need switch to stand-by feeding pump B operation time, existing switched system operating procedure has:
(1) cut water: open valve E8, clean waterpump 12 is inputted clear water; Throttle down A2, stop supplies slurry.
(2) cut pump: clean waterpump 12 is opened valve F9 after inputting clear water and rinsing well to feeding pump A for approximately 10 minutes, start feeding pump B to normal, open valve G11; Then throttle down C5, stops feeding pump A, throttle down B3.
(3) cut slurry: open valve A2, throttle down E8, recovers slurry body.
The switching of valve, the start and stop of equipment, completing of existing whole feeding pump switched system operating procedure needs 15~20 minutes consuming time.
In like manner, feeding pump B slurry body breaks down and need switch to stand-by feeding pump A operation time, its handover operation step is all: cut water, cut pump, cut slurry.
When 2, feeding pump A carries water, its supporting valve state is: the valve in open mode has: valve E8, valve B3, valve C5 and valve D6; Valve in closed condition has: valve A2, valve F9 and valve G11.Feeding pump A carries and in the process of water, breaks down and need switch to stand-by feeding pump B operation time, existing switched system operating procedure is only cut pump: open valve F9, start feeding pump B to normal, open valve G11; Then throttle down C5, stops feeding pump A, throttle down B3.
Feeding pump system is carried to switch in the process of water and is not related to step and cut water and cut slurry, and the slurry in pipeline, feeding pump equipment of tracing it to its cause when carrying water is rinsed well.While carrying water, handoff procedure only needs to cut pump, therefore handoff procedure only needs 5~8 minutes consuming time.
In like manner, feeding pump B carries water to break down and need switch to stand-by feeding pump A operation time, its handover operation step is only cut pump.
Existing feeding pump system carries that to switch technique of crucial importance, is bringing into play the effect that is difficult to substitute, but along with the enforcement of production process, and while facts have proved feeding pump system slurry body, it switches technique and has following defect:
1, handoff procedure relates to and cuts water, cuts pump, cuts slurry, complex steps; The switching of valve, the start and stop of equipment, complicated operation.
2, cut online water and rinse feeding pump system, sparge water is directly inputted to pressurization main pump, main pipeline, reduces the operating rate of pressurization main pump slurry body, disturbs the concentration of main pipeline slurry body.
3, cut water step and need expend tens cubes of sparge waters at every turn, this sparge water of tens cubes is input to pressurization main pump and is transported to next stage pumping plant and needs sky high cost, and cuts water step remote-effects pressurization main pump and carry less the slurry of tens cubes, extremely uneconomical.
Summary of the invention
The present invention has designed a kind of noiseless switched system and switching method thereof of feeding pump, and it switches the following technical problem that technique exists while solving feeding pump system slurry body: (1) handoff procedure relates to be cut water, cut pump, cuts slurry, complex steps; The switching of valve, the start and stop of equipment, complicated operation.(2) cut online water and rinse feeding pump system, sparge water is directly inputted to pressurization main pump, main pipeline, reduces the operating rate of pressurization main pump slurry body, disturbs the concentration of main pipeline slurry body.(3) cut water step and need expend tens cubes of sparge waters at every turn, this sparge water of tens cubes is input to pressurization main pump and is transported to next stage pumping plant and needs sky high cost, and cuts water step remote-effects pressurization main pump and carry less the slurry of tens cubes, extremely uneconomical.
In order to solve the technical problem of above-mentioned existence, the present invention has adopted following scheme:
A kind of noiseless switched system of feeding pump, comprise feeding pump A(4), feeding pump B(10), stirring chest (1) and clean waterpump (12), feeding pump A(4) and feeding pump B(10) be connected in parallel and realize the using and the reserved, feeding pump A(4) input end pipeline and pipeline at output on valve B(3 is set respectively) and valve C(5), feeding pump B(10) input end pipeline and pipeline at output on valve F(9 is set respectively) and valve G(11); Feeding pump A(4) with feeding pump B(10) common input end pipeline is connected with stirring chest (1), and valve A(2 is set on common input end pipeline), on clean waterpump (12) pipeline at output, valve E(8 is set) and with valve A(2) pipeline at output is connected; Feeding pump A(4) with feeding pump B(10) common output end pipeline with pressurization main pump (7) be connected, and on common output end pipeline, valve D(6 is set), it is characterized in that: also comprise noiseless switching tube equipment.
Further, noiseless switching tube equipment comprises flushing pipe A(13), flushing pipe B(19), accident pool (18) and flushing pipe C(20); Described flushing pipe A(13) on valve H(14 is set) and valve I(15), described flushing pipe A(13) one end is connected to valve B(3) and feeding pump A(4) between pipeline on, the other end is connected to valve F(9) and feeding pump B(10) between pipeline on; Flushing pipe B(19) on valve J(16 is set) and valve K(17), flushing pipe B(19) one end is connected to valve C(5) and feeding pump A(4) between pipeline on, the other end is connected to valve G(11) and feeding pump B(10) between pipeline on; Clean waterpump (12) is connected to valve H(14 by pipeline) and valve I(15) between described flushing pipe A(13) upper, accident pool (18) is by flushing pipe C(20) be connected to valve J(16) and valve K(17) between described flushing pipe B(19) on.
A kind of switching method of the noiseless switched system for feeding pump, comprise the following steps: feeding pump A(4) during slurry body, its supporting valve state is: the valve in open mode has: valve A(2), valve B(3), valve C(5) and valve D(6); Valve in closed condition has: valve H(14), valve I(15), valve J(16), valve K(17), valve E(8), valve F(9) and valve G(11), feeding pump A(4) break down in slurry body process and need switch to stand-by feeding pump B(10) during operation, noiseless switched system operating procedure has: step 1, cut pump online: open valve F(9), start feeding pump B(10) to normal, open valve G(11); Then throttle down C(5), stop feeding pump A(4), throttle down B(3); Step 2, off-line are cut water: open valve H(14) and valve J(16), start clean waterpump (12) input clear water and rinse feeding pump A(4), sparge water is by flushing pipe C(20) directly enter accident pool (18).
A kind of switching method of the noiseless switched system for feeding pump, comprise the following steps: feeding pump B(10) during slurry body, its supporting valve state is: the valve in open mode has: valve A(2), valve F(9), valve G(11) and valve D(6); Valve in closed condition has: valve H(14), valve I(15), valve J(16), valve K(17), valve E(8), valve B(3) and valve C(5), feeding pump B(10) break down in slurry body process and need switch to stand-by feeding pump A(4) during operation, noiseless switched system operating procedure has: step 1, cut pump online: open valve B(3), start feeding pump A(4) to normal, open valve C(5); Then throttle down G(11), stop feeding pump B(10), throttle down F(9); Step 2, off-line are cut water: open valve I(15) and valve K(17), start clean waterpump (12) input clear water and rinse feeding pump B(10), sparge water is by flushing pipe C(20) directly enter accident pool (18).
A kind of switching method of the noiseless switched system for feeding pump, comprise the following steps: feeding pump A(4) carry during water, its supporting valve state is: the valve in open mode has: valve A(2), valve B(3), valve C(5) and valve D(6); Valve in closed condition has: valve H(14), valve I(15), valve J(16), valve K(17), valve E(8), valve F(9) and valve G(11), feeding pump A(4) carry and in the process of water, break down and need switch to stand-by feeding pump B operation time, noiseless switched system operation does not relate to off-line and cuts water flushing, only relate to step and cut online pump: open valve F(9), start feeding pump B(10) to normal, open valve G(11); Then throttle down C(5), stop feeding pump A(4), throttle down B(3).
A kind of switching method of the noiseless switched system for feeding pump, comprise the following steps: feeding pump B(10) carry during water, its supporting valve state is: the valve in open mode has: valve A(2), valve F(9), valve G(11) and valve D(6); Valve in closed condition has: valve H(14), valve I(15), valve J(16), valve K(17), valve E(8), valve B(3) and valve C(5), feeding pump B(10) carry and in the process of water, break down and need switch to stand-by feeding pump A(4) during operation, noiseless switched system operation does not relate to off-line and cuts water flushing, only relate to step and cut online pump: open valve B(3), start feeding pump A(4) to normal, open valve C(5); Then throttle down G(11), stop feeding pump B(10), throttle down F(9).
The noiseless switched system of this feeding pump and switching method thereof, compared with existing feeding pump system transporting system and switching method thereof, have following beneficial effect:
(1) the noiseless switched system of feeding pump of the present invention can be realized and cut pump online and off-line is cut water, when a feeding pump breaks down, no longer need to close after the pending fault feeding pumps such as whole ore slurry pipeline transport system clean up, could use an other standby feeding pump.
(2) the noiseless handover operation of the present invention only relate to cut pump online, off-line is cut water, step simplify, switching saves time; Cut online pump and only need 5 minutes, thereby reduce the disturbance of on-line operation process to equipment, pipeline slurry.
(3) off-line of the present invention is cut water flushing, and sparge water no longer enters pressurization main pump and is delivered to next stage pumping plant, and sparge water directly enters accident pool in pumping plant, recycles, cost-saving.
(4) off-line of the present invention is cut water and is rinsed the operation that does not affect online equipment, can freely control washing time with cleaning down feeding pump system, stops thoroughly not cause because not rinsing or rinsing the parking risk that in next handoff procedure, slurry blocking pipe causes.
Accompanying drawing explanation
Fig. 1: existing feeding pump system delivery technology switches figure;
Fig. 2: the present invention is for the process flow diagram of the noiseless switched system of feeding pump.
Description of reference numerals:
1-stirring chest; 2-valve A; 3-valve B; 4-feeding pump A; 5-valve C; 6-valve D; 7-pressurization main pump; 8-valve E; 9-valve F; 10-feeding pump B; 11-valve G; 12-clean waterpump; 13-flushing pipe A; 14-valve H; 15-valve I; 16-valve J; 17-valve K; 18-accident pool; 19-flushing pipe B; 20-flushing pipe C.
Embodiment
Below in conjunction with Fig. 2, the present invention will be further described:
As shown in Figure 2, a kind of noiseless switched system for feeding pump, comprises feeding pump A4, feeding pump B10, stirring chest 1 and clean waterpump 12, and feeding pump A4 and feeding pump B10 are connected in parallel and realize the using and the reserved; Stirring chest 1 provides slurry to feeding pump system, and clean waterpump 12 is to feeding pump system input clear water; Also comprise accident pool 18, described accident pool 18 rinses the slurry that gets off and water and is beneficial to pumping plant and recycles for storing feeding pump system off-line.
Inventive point of the present invention is: also comprise flushing pipe A13, flushing pipe B19 and flushing pipe C20, described clean waterpump 12, flushing pipe A13, flushing pipe B19, flushing pipe C20 and accident pool 18 form one independently off-line cut water and rinse feeding pump system, replace the existing water rinse-system of cutting online.
Specifically, valve H14 and valve I15 are set on flushing pipe A13, clean waterpump 12 pipeline at outputs respectively with valve A2 pipeline at output, valve H14 and valve I15 between pipeline be connected, on clean waterpump 12 pipeline at outputs and valve A2 pipeline at output access path, valve E8 is set, between clean waterpump 12 pipeline at outputs and valve H14 and valve I15, on pipeline access path, valve is not set.Described flushing pipe A13 one end is connected on the pipeline between valve B3 and feeding pump A4, and the other end is connected on the pipeline between valve F9 and feeding pump B10.Flushing pipe B19 one end is connected on the pipeline between valve C5 and feeding pump A4, and the other end is connected on the pipeline between valve G11 and feeding pump B10; Valve J16 and valve K17 are set on flushing pipe B19; Between flushing pipe C20 and valve J16 and valve K17, pipeline is connected, and directly feeding pump system off-line is rinsed to the slurry and the water that get off enter accident pool 18 by flushing pipe C20.
Working principle of the present invention is as follows:
1,, during feeding pump A slurry body, its supporting valve state is: the valve in open mode has: valve A2, valve B3, valve C5 and valve D6; Valve in closed condition has: valve H14, valve I15, valve J16, valve K17, valve E8, valve F9 and valve G11.In feeding pump A slurry body process, break down and need switch to stand-by feeding pump B operation time, noiseless switched system operating procedure has:
(1) cut online pump: open valve F9, start feeding pump B to normal, open valve G11; Then throttle down C5, stops feeding pump A, throttle down B3.
(2) off-line is cut water: open valve H14 and valve J16, start clean waterpump 12 and input clear water flushing feeding pump A, sparge water directly enters accident pool 18 by flushing pipe C20.
2,, during feeding pump B slurry body, its supporting valve state is: the valve in open mode has: valve A2, valve F9, valve G11 and valve D6; Valve in closed condition has: valve H14, valve I15, valve J16, valve K17, valve E8, valve B3 and valve C5.In feeding pump B slurry body process, break down and need switch to stand-by feeding pump A operation time, noiseless switched system operating procedure has:
(1) cut online pump: open valve B3, start feeding pump A to normal, open valve C5; Then throttle down G11, stops feeding pump B, throttle down F9.
(2) off-line is cut water: open valve I15 and valve K17, start clean waterpump 12 and input clear water flushing feeding pump B, sparge water directly enters accident pool 18 by flushing pipe C20.
When 3, feeding pump A carries water, its supporting valve state is: the valve in open mode has: valve A2, valve B3, valve C5 and valve D6; Valve in closed condition has: valve H14, valve I15, valve J16, valve K17, valve E8, valve F9 and valve G11.Feeding pump A carries and in the process of water, breaks down and need switch to stand-by feeding pump B operation time, noiseless switched system operation does not relate to off-line and cuts water flushing, only relate to step and cut online pump: open valve F9, start feeding pump B to normal, open valve G11; Then throttle down C5, stops feeding pump A, throttle down B3.
When 4, feeding pump B carries water, its supporting valve state is: the valve in open mode has: valve A2, valve F9, valve G11 and valve D6; Valve in closed condition has: valve H14, valve I15, valve J16, valve K17, valve E8, valve B3 and valve C5.Feeding pump B carries and in the process of water, breaks down and need switch to stand-by feeding pump A operation time, and noiseless switched system operation does not relate to off-line cuts water and rinse, and only relates to step and cuts online pump: open valve B3, start feeding pump A to normal, open valve C5; Then throttle down G11, stops feeding pump B, throttle down F9.
The noiseless switched system of this feeding pump and switching method thereof, compared with existing feeding pump system transporting system and switching method thereof, have following beneficial effect:
(1) the noiseless switched system of feeding pump of the present invention can be realized and cut pump online and off-line is cut water, when a feeding pump breaks down, no longer need to close after the pending fault feeding pumps such as whole ore slurry pipeline transport system clean up, could use an other standby feeding pump.
(2) the noiseless handover operation of the present invention only relate to cut pump online, off-line is cut water, step simplify, switching saves time; Cut online pump and only need 5 minutes, thereby reduce the disturbance of on-line operation process to equipment, pipeline slurry.
(3) off-line of the present invention is cut water flushing, and sparge water no longer enters pressurization main pump and is delivered to next stage pumping plant, and sparge water directly enters accident pool in pumping plant, recycles, cost-saving.
(4) off-line of the present invention is cut water and is rinsed the operation that does not affect online equipment, can freely control washing time with cleaning down feeding pump system, stops thoroughly not cause because not rinsing or rinsing the parking risk that in next handoff procedure, slurry blocking pipe causes.
By reference to the accompanying drawings the present invention has been carried out to exemplary description above; obvious realization of the present invention is not subject to the restrictions described above; as long as the various improvement that adopted method design of the present invention and technological scheme to carry out; or without improving, design of the present invention and technological scheme are directly applied to other occasion, all in protection scope of the present invention.

Claims (6)

1. the noiseless switched system of a feeding pump, comprise feeding pump A(4), feeding pump B(10), stirring chest (1) and clean waterpump (12), feeding pump A(4) and feeding pump B(10) be connected in parallel and realize the using and the reserved, feeding pump A(4) input end pipeline and pipeline at output on valve B(3 is set respectively) and valve C(5), feeding pump B(10) input end pipeline and pipeline at output on valve F(9 is set respectively) and valve G(11); Feeding pump A(4) with feeding pump B(10) common input end pipeline is connected with stirring chest (1), and valve A(2 is set on common input end pipeline), on clean waterpump (12) pipeline at output, valve E(8 is set) and with valve A(2) pipeline at output is connected; Feeding pump A(4) with feeding pump B(10) common output end pipeline with pressurization main pump (7) be connected, and on common output end pipeline, valve D(6 is set), it is characterized in that: also comprise noiseless switching tube equipment.
2. the noiseless switched system of feeding pump according to claim 1, is characterized in that: noiseless switching tube equipment comprises flushing pipe A(13), flushing pipe B(19), accident pool (18) and flushing pipe C(20); Described flushing pipe A(13) on valve H(14 is set) and valve I(15), described flushing pipe A(13) one end is connected to valve B(3) and feeding pump A(4) between pipeline on, the other end is connected to valve F(9) and feeding pump B(10) between pipeline on; Flushing pipe B(19) on valve J(16 is set) and valve K(17), flushing pipe B(19) one end is connected to valve C(5) and feeding pump A(4) between pipeline on, the other end is connected to valve G(11) and feeding pump B(10) between pipeline on; Clean waterpump (12) is connected to valve H(14 by pipeline) and valve I(15) between described flushing pipe A(13) upper, accident pool (18) is by flushing pipe C(20) be connected to valve J(16) and valve K(17) between described flushing pipe B(19) on.
3. the switching method for the noiseless switched system of feeding pump, comprise the following steps: feeding pump A(4) during slurry body, its supporting valve state is: the valve in open mode has: valve A(2), valve B(3), valve C(5) and valve D(6); Valve in closed condition has: valve H(14), valve I(15), valve J(16), valve K(17), valve E(8), valve F(9) and valve G(11), feeding pump A(4) break down in slurry body process and need switch to stand-by feeding pump B(10) during operation, noiseless switched system operating procedure has: step 1, cut pump online: open valve F(9), start feeding pump B(10) to normal, open valve G(11); Then throttle down C(5), stop feeding pump A(4), throttle down B(3); Step 2, off-line are cut water: open valve H(14) and valve J(16), start clean waterpump (12) input clear water and rinse feeding pump A(4), sparge water is by flushing pipe C(20) directly enter accident pool (18).
4. the switching method for the noiseless switched system of feeding pump, comprise the following steps: feeding pump B(10) during slurry body, its supporting valve state is: the valve in open mode has: valve A(2), valve F(9), valve G(11) and valve D(6); Valve in closed condition has: valve H(14), valve I(15), valve J(16), valve K(17), valve E(8), valve B(3) and valve C(5), feeding pump B(10) break down in slurry body process and need switch to stand-by feeding pump A(4) during operation, noiseless switched system operating procedure has: step 1, cut pump online: open valve B(3), start feeding pump A(4) to normal, open valve C(5); Then throttle down G(11), stop feeding pump B(10), throttle down F(9); Step 2, off-line are cut water: open valve I(15) and valve K(17), start clean waterpump (12) input clear water and rinse feeding pump B(10), sparge water is by flushing pipe C(20) directly enter accident pool (18).
5. the switching method for the noiseless switched system of feeding pump, comprise the following steps: feeding pump A(4) carry during water, its supporting valve state is: the valve in open mode has: valve A(2), valve B(3), valve C(5) and valve D(6); Valve in closed condition has: valve H(14), valve I(15), valve J(16), valve K(17), valve E(8), valve F(9) and valve G(11), feeding pump A(4) carry and in the process of water, break down and need switch to stand-by feeding pump B operation time, noiseless switched system operation does not relate to off-line and cuts water flushing, only relate to step and cut online pump: open valve F(9), start feeding pump B(10) to normal, open valve G(11); Then throttle down C(5), stop feeding pump A(4), throttle down B(3).
6. the switching method for the noiseless switched system of feeding pump, comprise the following steps: feeding pump B(10) carry during water, its supporting valve state is: the valve in open mode has: valve A(2), valve F(9), valve G(11) and valve D(6); Valve in closed condition has: valve H(14), valve I(15), valve J(16), valve K(17), valve E(8), valve B(3) and valve C(5), feeding pump B(10) carry and in the process of water, break down and need switch to stand-by feeding pump A(4) during operation, noiseless switched system operation does not relate to off-line and cuts water flushing, only relate to step and cut online pump: open valve B(3), start feeding pump A(4) to normal, open valve C(5); Then throttle down G(11), stop feeding pump B(10), throttle down F(9).
CN201410015566.1A 2014-01-14 2014-01-14 A kind of noiseless switched system of feeding pump and switching method thereof Active CN103742397B (en)

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CN104197197A (en) * 2014-09-09 2014-12-10 云南大红山管道有限公司 On-line switching method for slurry and water in long-distance slurry pipeline transportation system
CN104295906A (en) * 2014-10-13 2015-01-21 云南大红山管道有限公司 Multi-pipeline and multi-station pulp pipe conveying system and pulp conveying control method
CN107504370A (en) * 2017-08-04 2017-12-22 中核兰州铀浓缩有限公司 A kind of Process Control System for centrifuging pipeline between tandem in uranium enrichment system
CN109253393A (en) * 2018-11-07 2019-01-22 常州信息职业技术学院 A kind of machinery automatic control formula pipeline reversing arrangement
CN110594585A (en) * 2019-08-28 2019-12-20 云南大红山管道有限公司 Material conveying and switching system with double conveying pipelines

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CN201386910Y (en) * 2009-05-04 2010-01-20 冯和平 Slurry conveying and cleaning system
CN201810989U (en) * 2010-09-19 2011-04-27 云南大红山管道有限公司 Ore pulp delivery duct
CN202402949U (en) * 2012-01-04 2012-08-29 中煤科工集团武汉设计研究院 High-concentration coal water slurry long-distance pipeline conveying device
CN103470954A (en) * 2013-09-25 2013-12-25 云南大红山管道有限公司 Seal water supplying system and water supplying method thereof
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CN103939745A (en) * 2014-04-24 2014-07-23 云南大红山管道有限公司 Slurry conveying pipeline system capable of effectively restraining vibration
CN104019365A (en) * 2014-06-12 2014-09-03 云南大红山管道有限公司 Multi-pipeline conveying system and method of multi-level pump station ore pulp pipeline
CN104019365B (en) * 2014-06-12 2016-06-15 云南大红山管道有限公司 A kind of multi stage pumping station slurry pipeline multi-line induction system and method
CN104197197A (en) * 2014-09-09 2014-12-10 云南大红山管道有限公司 On-line switching method for slurry and water in long-distance slurry pipeline transportation system
CN104197197B (en) * 2014-09-09 2017-05-31 云南大红山管道有限公司 A kind of pulp-water online changing method in long-distance slurry pipe-line transportation system
CN104295906A (en) * 2014-10-13 2015-01-21 云南大红山管道有限公司 Multi-pipeline and multi-station pulp pipe conveying system and pulp conveying control method
CN107504370A (en) * 2017-08-04 2017-12-22 中核兰州铀浓缩有限公司 A kind of Process Control System for centrifuging pipeline between tandem in uranium enrichment system
CN107504370B (en) * 2017-08-04 2020-02-18 中核兰州铀浓缩有限公司 Process control system of pipeline between cascade stages in centrifugal uranium enrichment system
CN109253393A (en) * 2018-11-07 2019-01-22 常州信息职业技术学院 A kind of machinery automatic control formula pipeline reversing arrangement
CN109253393B (en) * 2018-11-07 2020-03-17 常州信息职业技术学院 Mechanical self-control type pipeline reversing device
CN110594585A (en) * 2019-08-28 2019-12-20 云南大红山管道有限公司 Material conveying and switching system with double conveying pipelines

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