CN109668053A - A kind of Slurry Pipeline Transportation system and slurry pipeline steel control method - Google Patents

A kind of Slurry Pipeline Transportation system and slurry pipeline steel control method Download PDF

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Publication number
CN109668053A
CN109668053A CN201910114081.0A CN201910114081A CN109668053A CN 109668053 A CN109668053 A CN 109668053A CN 201910114081 A CN201910114081 A CN 201910114081A CN 109668053 A CN109668053 A CN 109668053A
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CN
China
Prior art keywords
slurry
conveyance conduit
concentration
pipeline
main pump
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Pending
Application number
CN201910114081.0A
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Chinese (zh)
Inventor
马军
吴建德
王晓东
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Kunming University of Science and Technology
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Kunming University of Science and Technology
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Priority to CN201910114081.0A priority Critical patent/CN109668053A/en
Publication of CN109668053A publication Critical patent/CN109668053A/en
Pending legal-status Critical Current

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    • FMECHANICAL ENGINEERING; LIGHTING; HEATING; WEAPONS; BLASTING
    • F17STORING OR DISTRIBUTING GASES OR LIQUIDS
    • F17DPIPE-LINE SYSTEMS; PIPE-LINES
    • F17D1/00Pipe-line systems
    • F17D1/08Pipe-line systems for liquids or viscous products
    • F17D1/14Conveying liquids or viscous products by pumping
    • FMECHANICAL ENGINEERING; LIGHTING; HEATING; WEAPONS; BLASTING
    • F17STORING OR DISTRIBUTING GASES OR LIQUIDS
    • F17DPIPE-LINE SYSTEMS; PIPE-LINES
    • F17D3/00Arrangements for supervising or controlling working operations
    • F17D3/01Arrangements for supervising or controlling working operations for controlling, signalling, or supervising the conveyance of a product

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  • Engineering & Computer Science (AREA)
  • Mechanical Engineering (AREA)
  • General Engineering & Computer Science (AREA)
  • Health & Medical Sciences (AREA)
  • Public Health (AREA)
  • Water Supply & Treatment (AREA)
  • Air Transport Of Granular Materials (AREA)

Abstract

The invention discloses a kind of Slurry Pipeline Transportation system and slurry pipeline steel control method, which includes the first conveyance conduit (1), the second conveyance conduit (2), energy-dissipation orifice plate (3), densimeter (4), main pump (5) and controller;One end of first conveyance conduit (1) and one end of second conveyance conduit (2) are connected to concentration basin (6), are equipped with the valve (7) that switching is controlled by the controller in the pipeline of first conveyance conduit (1) and in the pipeline of second conveyance conduit (2);The other end of second conveyance conduit (1) is connected to first conveyance conduit (2), and the other end of first conveyance conduit (1) is connected to the main pump (5).The present invention realizes slurry concentration adjusting, is required with guaranteeing that slurry concentration meets conveying, solves because slurry body concentration is unsatisfactory for leading to pipe wear, slurry precipitating due to conveying requires.

Description

A kind of Slurry Pipeline Transportation system and slurry pipeline steel control method
Technical field
The present invention relates to Slurry Pipeline Transportation field more particularly to a kind of Slurry Pipeline Transportation systems and slurry pipeline steel to control Method.
Background technique
Pipeline transportation has become the 5th kind of technological revolution after ongoing logistlcs technology revolution.With container type The development of pipeline logistics, it will be seen that, pipeline can not only convey gas, particle, slurry, liquid, in fact, pipeline can be with Transport the article of arbitrary shape.In particular, it can overcome existing several means of transportation (steamer, train, automobile, aircraft) Various limitations.Pipeline transportation saves the energy, and free from environmental pollution, safety, convenience are higher.Its medium or low resistance high density pulp transport One of developing direction as slurry pipeline.It was found that the reasonable high concentration coal slurry of granularmetric composition, pipeline concentration can be with Reach 62%~64%, there is better dewatering than present middle concentration coal slurry (concentration is 46%~50%), it is higher Water-saving benefit and pipeline operation efficiency.High concentration ground paste pipeline, which has, to be not easy to isolate, is not easy to precipitate, and is stopped in the duct The characteristic that easily re-flows again after short time, not only energy-saving and water-saving, economical and practical but also safe and reliable, just made high density slurry pipeline defeated It send and is more and more widely used.Therefore according to the actual situation, it is badly in need of a kind of device of novel Slurry Pipeline Transportation system And control method reaches the requirement of low-resistance high density pulp transport.
The influence factor of road slurry body resistance is broadly divided into 4 major class, it may be assumed that material characteristic, slurry characteristic, pipeline are special Property, flow behavior.Wherein influence of the concentration in slurry characteristic to pipeline transportation is great.When slurry concentration is excessively high, slurry is more The reticular structure for easily forming coagulation, increased dramatically slurry viscosity and initial shearing stress, thus pipeline frictional resistance Loss also increases accordingly.
Summary of the invention
For the problems of in the prior art, present invention one kind in this that is designed to provide can adjust slurry biography Concentration during defeated, so that solving slurry concentration is more than slurry pipe the problems such as requiring the abrasion caused by pipeline, slurry precipitating Pipeline conveying system.
To achieve the purpose of the present invention, Slurry Pipeline Transportation system includes provided herein,
First conveyance conduit is used for slurry body;
Second conveyance conduit is used for slurry body;
Energy-dissipation orifice plate, for changing the flow velocity of transmission process slurry;
Densimeter, for detecting the concentration of slurry in transmission process;
Main pump, and
Controller, for receiving the output signal of the densimeter, and export control signal control the energy-dissipation orifice plate and The main pump work;
One end of first conveyance conduit and one end of second conveyance conduit are connected to concentration basin, and described first is defeated It send in the pipeline of pipeline and the valve for being controlled switching by the controller is installed in the pipeline of second conveyance conduit;Institute The other end for stating the second conveyance conduit is connected to first conveyance conduit, the other end of first conveyance conduit and the master Pump connection.
Specifically, the slurry in the concentration basin is passed through first conveyance conduit and second conveying by thickener In pipeline.
Specifically, the thickener is installed on the lower section of the concentration basin.
Specifically, the length of first conveyance conduit is greater than the length of second conveyance conduit.
Second in this of the present invention is designed to provide a kind of slurry pipeline steel control method, and this method is according to slurry to be conveyed The concentration of body decides whether slurry body, if slurry concentration to be conveyed meets conveying and requires, controls on first conveyance conduit Valve and the main pump open, by the first conveyance conduit by the slurry pipeline steel to be conveyed being contained in the concentration basin to institute Main pump is stated to transfer out;It is on the contrary then do not convey;Slurry during transportation, when slurry concentration is more than that conveying requires, pacify by control Loaded in first conveyance conduit valve and the main pump close, open the valve that is installed in second conveyance conduit With the energy-dissipation orifice plate, the slurry in the concentration basin is contained in after second conveyance conduit and first conveyance conduit It is transmitted back to the concentration basin, when slurry concentration meets conveying and requires, controls the valve being installed in second conveyance conduit It is closed with the energy-dissipation orifice plate, controls the valve being installed in first conveyance conduit and the main pump is opened, pass through first Conveyance conduit transfers out the slurry pipeline steel to be conveyed being contained in the concentration basin to the main pump, circuits sequentially.
The beneficial effects of the present invention are: the present invention obtains the concentration of slurry in transmission process using densimeter, controller is connect Densimeter output signal is received, according to slurry body concentration, output control signal control energy-dissipation orifice plate is opened/closed, to change The flow velocity of slurry, since flow velocity and the concentration of slurry are inversely proportional, i.e., flow velocity is faster, and concentration is lower;Flow velocity is slower, and concentration is higher; Therefore the flow velocity for changing slurry is the slurry concentration changed in transmission process;Simultaneously controller according to slurry concentration control valve and Main pump work is avoided and is conveyed in the slurry input main pipeline of high concentration, and solving slurry concentration is more than to require to pipeline Caused by abrasion, slurry precipitating the problems such as.
Detailed description of the invention
Fig. 1 is the structural schematic diagram of pipe-line transportation system provided by the present invention;
Fig. 2 is the work flow diagram of pipe-line transportation system provided by the present invention;
In figure: the first conveyance conduit of 1-, the second conveyance conduit of 2-, 3- energy-dissipation orifice plate, 4- densimeter 4,5- main pump, 6- concentration Pond, 7- valve, 8- thickener, 9- main delivery pipe, 10- inlet.
Specific embodiment
Claimed technical solution of the invention is described in further detail in conjunction with attached drawing and specific example herein.
Slurry concentration can not be adjusted in time in order to solve existing Slurry Pipeline Transportation, lead to pipe wear, slurry precipitating The problems such as, thus the problem of causing economic loss, the present invention is that one kind can be adjusted in transmission process in time and be starched provided herein The Slurry Pipeline Transportation system of bulk concentration.
Fig. 1 illustrates the structure of Slurry Pipeline Transportation system provided by the invention comprising is used for slurry body first Conveyance conduit 1 and the second conveyance conduit 2 conveyed for changing the energy-dissipation orifice plate 3 of the flow velocity of transmission process slurry for detecting The densimeter 4 of the concentration of slurry, main pump 5, and the output signal for receiving densimeter 4 in journey, and export control signal control The controller of energy-dissipation orifice plate 3 and main pump 5 work processed;Wherein, one end of one end of the first conveyance conduit 1 and the second conveyance conduit 2 It is connected to concentration basin 6, is equipped in the pipeline of the first conveyance conduit 1 and in the pipeline of the second conveyance conduit 2 and is controlled by the controller The valve 7 of switching;The other end of second conveyance conduit 2 is connected to the first conveyance conduit 1, the other end of the first conveyance conduit 1 with Main pump 5 is connected to, and the delivery outlet of main pump 5 is connected to main delivery pipe 9, by slurry pipeline steel to be conveyed to appointed place.
As shown in Fig. 2, transportation system working principle provided by the invention is: raw material slurry is defeated by first by inlet 10 It send pipeline to enter concentration basin and carries out slurry concentration, after raw material slurry is precipitated via concentration basin 6, by densimeter 4 to slurry Concentration is acquired, and result that acquisition obtains is exported to controller, is prestored slurry concentration threshold value in controller, is worked as concentration 4 output concentration results of meter are more than slurry concentration threshold value, then export control signal and control the valve being installed in the first conveyance conduit 1 7 and main pump 5 close, without conveying, while the valve 7 that is installed in the second conveyance conduit 2 of control and energy-dissipation orifice plate 3 are opened, It is delivered to the slurry in concentration basin 6 in first conveyance conduit 1 through the second conveyance conduit 2, inputs and be concentrated through the first conveyance conduit 1 Pond 6, interior, slurry reduces concentration under the action of energy-dissipation orifice plate 3 at this time, until slurry concentration meets transportation concentration, at this point, The valve 7 and main pump 5 that controller control is installed in the first conveyance conduit 1 are opened, and closing is installed in the second conveyance conduit 2 Valve 7 makes the slurry in concentration basin be delivered to main pump 5 through the first conveyance conduit 1, and inputs main delivery pipe 9 through main pump 5, by Main delivery pipe 9 is delivered to appointed place.Due to being inversely proportional between the flow velocity and slurry concentration of slurry, i.e. slurry flow velocity is faster, Transmission process concentration is lower;Slurry flow velocity is slower, and transmission process concentration is higher, therefore densimeter 4 is defeated to first during transportation It send the concentration in pipeline 1 to be acquired, and result that acquisition obtains is exported to controller, prestore slurry concentration in controller Threshold value is more than slurry concentration threshold value when densimeter 4 exports concentration results, then exports control signal control and be installed on the first delivery pipe Valve 7 and main pump 5 in road are closed, and are opened the valve being installed in the second conveyance conduit 2 and energy-dissipation orifice plate 3, are made concentration basin 6 In slurry be delivered to concentration basin 6 through the second conveyance conduit 2 and the first conveyance conduit 1, and changed by the effect of energy-dissipation orifice plate 3 Slurry concentration is opened the valve 7 and main pump 5 being installed in the first conveyance conduit 1, is closed when slurry concentration satisfaction conveying requires The valve 7 being installed in the second conveyance conduit 2 is closed, so that slurry is delivered to main pump 5 by the first conveyance conduit 1, and defeated by main pump 5 Enter main delivery pipe 9, appointed place is delivered to by main delivery pipe 9, is circuited sequentially.It is defeated using 4 real-time detection first of densimeter The slurry concentration in pipeline 1 is sent, and by the ON/OFF of controller control energy-dissipation orifice plate 3, main pump 5, valve 7, realizes slurry concentration It adjusts, is required with guaranteeing that slurry concentration meets conveying, solved because slurry body concentration is unsatisfactory for leading to pipeline due to conveying requires The problems such as abrasion, slurry precipitating.
In order to enable the slurry in concentration basin 6 to efficiently enter the first conveyance conduit 1, in the second conveyance conduit 2, this hair It is bright using thickener 8 by the slurry pipeline steel in concentration basin 6 into the first conveyance conduit 1, the second conveyance conduit 2.The thickener 8 can be with Positioned at any position, it is installed on the lower section of concentration basin 6 herein.
Documented controller can be constituted using existing any single-chip minimum system herein.
The length of documented first conveyance conduit 1 and the length of the second conveyance conduit 2 can be equal herein by the present invention, It can not wait, in some embodiments, the length of the first conveyance conduit 1 is greater than the length of the second conveyance conduit 2.
The above examples are only used to illustrate the technical scheme of the present invention and are not limiting, those of ordinary skill in the art are to this hair The modification or equivalent replacement that bright technical solution is made are contained without departing from the spirit and scope of technical solution of the present invention It covers in scope of the presently claimed invention.

Claims (5)

1. a kind of Slurry Pipeline Transportation system, it is characterised in that: the system includes,
First conveyance conduit (1) is used for slurry body;
Second conveyance conduit (2) is used for slurry body;
Energy-dissipation orifice plate (3), for changing the flow velocity of transmission process slurry;
Densimeter (4), for detecting the concentration of slurry in transmission process;
Main pump (5), and
Controller for receiving the output signal of the densimeter (4), and exports control signal and controls the energy-dissipation orifice plate (3) It works with the main pump (5);
One end of first conveyance conduit (1) and one end of second conveyance conduit (2) are connected to concentration basin (6), described Be equipped in the pipeline of first conveyance conduit (1) and in the pipeline of second conveyance conduit (2) control by the controller lead to, Disconnected valve (7);The other end of second conveyance conduit (1) is connected to first conveyance conduit (2), first conveying The other end of pipeline (1) is connected to the main pump (5).
2. Slurry Pipeline Transportation system according to claim 1, it is characterised in that: the slurry in the concentration basin (6) is logical Thickener (8) is crossed to be passed through in first conveyance conduit (1) and second conveyance conduit (2).
3. Slurry Pipeline Transportation system according to claim 2, it is characterised in that: the thickener (8) is installed on described The lower section of concentration basin (6).
4. Slurry Pipeline Transportation system according to claim 1 or 2 or 3, it is characterised in that: first conveyance conduit (1) length is greater than the length of second conveyance conduit (2).
5. the slurry pipeline steel control method carried out using Slurry Pipeline Transportation system described in claim 1-4 any one, Be characterized in that: this method decides whether slurry body according to the concentration of slurry to be conveyed, if slurry concentration to be conveyed meets conveying It is required that the valve (7) and the main pump (5) on control first conveyance conduit (1) are opened, pass through the first conveyance conduit (1) The slurry pipeline steel to be conveyed being contained in the concentration basin (6) to the main pump (5) is transferred out;It is on the contrary then do not convey;Slurry Body during transportation, when slurry concentration is more than that conveying requires, controls the valve being installed in first conveyance conduit (1) (7) it is closed with the main pump (7), opens the valve (7) and the energy-dissipation orifice plate being installed in second conveyance conduit (2) (3), it is defeated after second conveyance conduit (2) and first conveyance conduit (1) to be contained in the slurry in the concentration basin (6) Send the concentration basin (6) back to, when slurry concentration meets conveying and requires, control is installed in second conveyance conduit (2) Valve (7) and the energy-dissipation orifice plate (3) are closed, and valve (7) and the master being installed in first conveyance conduit (1) are controlled It pumps (7) to open, the slurry pipeline steel to be conveyed in the concentration basin (6) will be contained in the master by the first conveyance conduit (1) Pump (5) transfers out, and circuits sequentially.
CN201910114081.0A 2019-02-14 2019-02-14 A kind of Slurry Pipeline Transportation system and slurry pipeline steel control method Pending CN109668053A (en)

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Application Number Priority Date Filing Date Title
CN201910114081.0A CN109668053A (en) 2019-02-14 2019-02-14 A kind of Slurry Pipeline Transportation system and slurry pipeline steel control method

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Cited By (2)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
CN112628606A (en) * 2020-12-15 2021-04-09 铜陵有色金属集团股份有限公司 Pipeline pressure adjusting device and pipeline pressure adjusting method
CN112856236A (en) * 2021-01-06 2021-05-28 代县久力新型球团厂(普通合伙) Automatic conveying device and method for long-distance ore pulp pipeline

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CN201415072Y (en) * 2009-02-17 2010-03-03 云南大红山管道有限公司 Pulp thickening system capable of increasing pulp density
CN101691906A (en) * 2009-03-26 2010-04-07 云南大红山管道有限公司 Method and system for eliminating accelerated flow in transportation process of long-distance slurry pipeline
CN101881374A (en) * 2010-06-01 2010-11-10 云南大红山管道有限公司 Circulating system in ore pulp delivery pipe and ore pulp delivery method
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WO2013165617A1 (en) * 2012-05-01 2013-11-07 Exxonmobil Upstream Research Company Systems for decreasing abrasive wear in a pipeline configured to transfer a slurry
CN203803155U (en) * 2014-01-21 2014-09-03 云南大红山管道有限公司 Slurry concentration processing system
CN104165270A (en) * 2014-08-19 2014-11-26 云南大红山管道有限公司 Dilution control system and method of iron ore concentrate pulp conveyed through pipes
CN204005256U (en) * 2014-08-08 2014-12-10 云南大红山管道有限公司 A kind of Slurry Pipeline Transportation system with acceleration stream muting function
CN204254274U (en) * 2014-11-28 2015-04-08 内蒙古包钢钢联股份有限公司 A kind of short circle pipe-line system regulating pulp concentration

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CN201415072Y (en) * 2009-02-17 2010-03-03 云南大红山管道有限公司 Pulp thickening system capable of increasing pulp density
CN101691906A (en) * 2009-03-26 2010-04-07 云南大红山管道有限公司 Method and system for eliminating accelerated flow in transportation process of long-distance slurry pipeline
CN101881374A (en) * 2010-06-01 2010-11-10 云南大红山管道有限公司 Circulating system in ore pulp delivery pipe and ore pulp delivery method
CN202149361U (en) * 2011-06-29 2012-02-22 云南大红山管道有限公司 Concentration and self-circulation system for slurry delivered by pipelines
WO2013165617A1 (en) * 2012-05-01 2013-11-07 Exxonmobil Upstream Research Company Systems for decreasing abrasive wear in a pipeline configured to transfer a slurry
CN203803155U (en) * 2014-01-21 2014-09-03 云南大红山管道有限公司 Slurry concentration processing system
CN204005256U (en) * 2014-08-08 2014-12-10 云南大红山管道有限公司 A kind of Slurry Pipeline Transportation system with acceleration stream muting function
CN104165270A (en) * 2014-08-19 2014-11-26 云南大红山管道有限公司 Dilution control system and method of iron ore concentrate pulp conveyed through pipes
CN204254274U (en) * 2014-11-28 2015-04-08 内蒙古包钢钢联股份有限公司 A kind of short circle pipe-line system regulating pulp concentration

Cited By (3)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
CN112628606A (en) * 2020-12-15 2021-04-09 铜陵有色金属集团股份有限公司 Pipeline pressure adjusting device and pipeline pressure adjusting method
CN112628606B (en) * 2020-12-15 2023-03-14 铜陵有色金属集团股份有限公司 Pipeline pressure adjusting device and pipeline pressure adjusting method
CN112856236A (en) * 2021-01-06 2021-05-28 代县久力新型球团厂(普通合伙) Automatic conveying device and method for long-distance ore pulp pipeline

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