CN108414411A - The carefully big pipeline concentration gradient monitoring device of tailing-filled slurry and method - Google Patents
The carefully big pipeline concentration gradient monitoring device of tailing-filled slurry and method Download PDFInfo
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- CN108414411A CN108414411A CN201810168909.6A CN201810168909A CN108414411A CN 108414411 A CN108414411 A CN 108414411A CN 201810168909 A CN201810168909 A CN 201810168909A CN 108414411 A CN108414411 A CN 108414411A
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- 239000002002 slurry Substances 0.000 title claims abstract description 80
- 238000012806 monitoring device Methods 0.000 title claims abstract description 25
- 238000000034 method Methods 0.000 title claims abstract description 18
- 238000012544 monitoring process Methods 0.000 claims abstract description 74
- 238000006073 displacement reaction Methods 0.000 claims abstract description 44
- 210000005239 tubule Anatomy 0.000 claims abstract description 31
- 238000009826 distribution Methods 0.000 claims abstract description 16
- 238000004458 analytical method Methods 0.000 claims abstract description 9
- 239000007787 solid Substances 0.000 claims description 73
- 239000002245 particle Substances 0.000 claims description 21
- 238000012360 testing method Methods 0.000 claims description 11
- 239000004033 plastic Substances 0.000 claims description 5
- 238000000605 extraction Methods 0.000 claims description 4
- 239000012530 fluid Substances 0.000 claims description 4
- 230000009471 action Effects 0.000 claims description 2
- XLYOFNOQVPJJNP-UHFFFAOYSA-N water Substances O XLYOFNOQVPJJNP-UHFFFAOYSA-N 0.000 claims description 2
- 241000145637 Lepturus Species 0.000 claims 1
- 239000000284 extract Substances 0.000 claims 1
- 239000004744 fabric Substances 0.000 claims 1
- 238000007664 blowing Methods 0.000 abstract description 3
- 238000011160 research Methods 0.000 abstract description 3
- 239000000463 material Substances 0.000 description 6
- 230000008859 change Effects 0.000 description 5
- 229910052500 inorganic mineral Inorganic materials 0.000 description 4
- 239000011707 mineral Substances 0.000 description 4
- 239000012141 concentrate Substances 0.000 description 3
- 239000002184 metal Substances 0.000 description 3
- 238000005457 optimization Methods 0.000 description 3
- 230000008569 process Effects 0.000 description 3
- 238000005516 engineering process Methods 0.000 description 2
- 238000005065 mining Methods 0.000 description 2
- 238000012986 modification Methods 0.000 description 2
- 230000004048 modification Effects 0.000 description 2
- 239000011343 solid material Substances 0.000 description 2
- 230000001360 synchronised effect Effects 0.000 description 2
- 230000005514 two-phase flow Effects 0.000 description 2
- 241000208340 Araliaceae Species 0.000 description 1
- 239000004606 Fillers/Extenders Substances 0.000 description 1
- 235000005035 Panax pseudoginseng ssp. pseudoginseng Nutrition 0.000 description 1
- 235000003140 Panax quinquefolius Nutrition 0.000 description 1
- 244000273618 Sphenoclea zeylanica Species 0.000 description 1
- 229920002472 Starch Polymers 0.000 description 1
- 229910000831 Steel Inorganic materials 0.000 description 1
- 238000005299 abrasion Methods 0.000 description 1
- 230000004888 barrier function Effects 0.000 description 1
- 239000004568 cement Substances 0.000 description 1
- 239000003795 chemical substances by application Substances 0.000 description 1
- 239000003250 coal slurry Substances 0.000 description 1
- 238000001514 detection method Methods 0.000 description 1
- 238000010586 diagram Methods 0.000 description 1
- 238000002474 experimental method Methods 0.000 description 1
- 239000010419 fine particle Substances 0.000 description 1
- 235000008434 ginseng Nutrition 0.000 description 1
- 238000000227 grinding Methods 0.000 description 1
- 238000006703 hydration reaction Methods 0.000 description 1
- 238000009776 industrial production Methods 0.000 description 1
- 239000007788 liquid Substances 0.000 description 1
- 239000000203 mixture Substances 0.000 description 1
- 238000005070 sampling Methods 0.000 description 1
- 238000007789 sealing Methods 0.000 description 1
- 235000019698 starch Nutrition 0.000 description 1
- 239000008107 starch Substances 0.000 description 1
- 239000010959 steel Substances 0.000 description 1
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- G—PHYSICS
- G01—MEASURING; TESTING
- G01N—INVESTIGATING OR ANALYSING MATERIALS BY DETERMINING THEIR CHEMICAL OR PHYSICAL PROPERTIES
- G01N15/00—Investigating characteristics of particles; Investigating permeability, pore-volume or surface-area of porous materials
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Abstract
A kind of big pipeline concentration gradient monitoring device of thin tailing-filled slurry and method, monitoring device are mounted on the horizontal pipe section of pipe-line system, monitoring the pipeline outer wall symmetrically orientation of affixed screw propulsion rod and displacement controller holder, orientation and displacement controller；Screw propulsion rod is screwed in and is engaged with displacement controller with traveling piston by orienting, and fixed rigid tubule, the tube wall of rigid tubule crack vertically for monitoring pipeline inside diameter position, and pipe seam forms slurry internal vent with two-piston end spacing.The key point concentration monitor on pipe diameter direction, concentration distribution continuously monitors on pipe diameter direction, and slurry concentration gradient monitors on conduit section.The device rigidity tubule negative pressure inhales the concentration distribution on the method monitoring conduit section of blowing slurry, research and analyse fine aggregate filling slurry large-diameter pipeline transportation concentration Gradient Features, it avoids large-diameter pipeline conveying plugging and is seriously worn, improve the stability and reliability of large-diameter pipeline conveying fine aggregate settleability slurry.
Description
Technical field
The present invention relates to solid-liquid two-phase flow large-diameter pipeline transportation art, specially a kind of thin tailing-filled big pipeline of slurry
Transportation concentration gradient monitoring device and method are suitable for industrial and mining enterprises and the experiment of fine particle stage material large-diameter pipeline Hydraulic transportation
Room, the metal mine especially suitable for the conveying of fine fraction tailing filling slurry large-diameter pipeline and laboratory.
Background technology
Pipeline is a kind of novel material transportation mode, have transportation cost is low, haul distance is long, take up an area less, it is pollution-free,
The advantages that weatherproof, is applied to the conveying of the solid materials such as mineral products, timber, chemical products, especially more and more widely
Be in mineral engineering field, it is more universal using coal slurry conveyed in pipeline, ore pulp, tailings and filling slurry.Solid material and haulage
Medium is mixed to form settleability two phase flow in the duct, and there are concentration gradients during pipeline, often occur plugging,
The phenomenon that even rupturing is seriously worn in pipeline, and conveying is caused to be interrupted, and causes business economic loss and the wasting of resources.
Since the needs and production-scale continuous expansion, the comminution granularity of concentrate product of bargh's fining ore dressing are got over
It is next smaller, and pipe diameter is increasing, and valuable mineral is caused to occur with the flow pattern that tailing large-diameter pipeline conveys
Variation, reduces the stability of pipeline.Especially China's metal mine field, metallic mineral resources natural endowment is low, and process is several
Quick exploitation in 10 years, raw ore extraction grade continuously decrease, and grinding particle size, which constantly reduces, can just select qualified concentrate containing, lead to concentrate
Granularity and tailing fine size, increase difficulty of transportation；Output crude tailings are configured to filling slurry in large diameter pipe with cementing agent, water
When being conveyed in road, due to the influence of the factors such as grade composition, hydration reaction, flow velocity, tailing filling slurry is on conduit section
Concentration distribution it is sufficiently complex and be not easy to monitor, cause the failure that pipeline plugging is stopped to happen occasionally.
The flow pattern of filling slurry in the duct be generate line clogging, abrasion basic reason, understand and control it is heavy
The concentration gradient of drop property Slurry Pipeline Transportation is the key that optimization pipe flow pattern state, improves conveying stability.Fine aggregate settleability material
Slurry large-diameter pipeline conveying is the technical barrier that industrial and mining enterprises of China face in recent years, the especially full tail of metal mine particulate
The technology problem of sandfilling slurry large-diameter pipeline conveying, due to lacking concentration distribution monitoring means in effective pipeline,
Pipeline failure accident risk is high, and accident treatment is very difficult, seriously affects industrial production.
Invention content
There are two the purpose of the present invention, and one is to provide a kind of thin tailing-filled big pipeline concentration gradient monitoring dress of slurry
It sets, two are to provide a kind of big pipeline concentration ladder of the thin tailing-filled big pipeline concentration gradient monitoring device monitoring of slurry
The method of degree, the device are inhaled by draining rigid tubule negative pressure built in conveyance conduit on the method monitoring conduit section that blowing is starched
Concentration distribution researchs and analyses fine aggregate filling slurry large-diameter pipeline transportation concentration Gradient Features, to instruct to change conveying ginseng
Number, optimization flow pattern avoid large-diameter pipeline conveying plugging and are seriously worn, it is thin tailing-filled to improve large-diameter pipeline conveying
The stability and reliability of slurry.
Realize that above-mentioned purpose uses following technical scheme：
A kind of thin tailing-filled big pipeline concentration gradient monitoring device of slurry, monitoring device are mounted on the level of pipe-line system
Pipeline section, the concentration distribution for slurry flow pattern monitor, and the monitoring device includes monitoring pipeline, further include that rigidity is small
Pipe, screw propulsion rod, orientation and displacement controller, holder, traveling piston, pull-out type air pump；The monitoring pipeline outer wall pair
Claim the orientation and displacement controller holder, orientation and displacement controller of affixed screw propulsion rod；The screw propulsion rod screws in
And engaged with displacement controller with traveling piston by orienting, it is being monitored by rotating screw propulsion rod handle change traveling piston
Position inside pipeline, fixed rigid tubule, traveling piston move in rigid tubule vertically for monitoring pipeline inside diameter position,
The tube wall of rigid tubule cracks, and pipe seam forms slurry internal vent, rigid tubule and orientation and displacement with two-piston end spacing
Controller axis overlaps, and rigid tubule is sealed with monitoring tube contacts position with gasket；After traveling piston reaches monitoring position,
Pull-out type air pump below opening conduits, the slurry for monitoring position are brought out monitoring pipe by internal discharge port under the action of negative pressure
Outside road, test analysis draws the concentration of filling slurry.
Preferably, the small pipe outside diameter of the rigidity is monitor internal diameter of the pipeline 0.04 times, and rigid tube inner diameter is more than etc.
In 3-4 times of particles of aggregates diameter, rigid the opened gap width of tubule is more than or equal to 2.5-3.5 times of particles of aggregates diameter.
Preferably, the screw propulsion rod is divided into solid screw propulsion rod and cored screw pushing ram, screw propulsion
There is bar external screw thread, cored screw pushing ram to screw in and by orientation and displacement controller, be engaged with hollow traveling piston screw；
The hollow part of cored screw pushing ram is slurry flow pass, and cored screw pushing ram is put plastic tube with slurry suction and connect, moulds
Property pipe is connected with pull-out type air pump.
Preferably, the orientation and displacement controller holder and hollow spiral shell of the monitoring affixed solid screw propulsion rod of pipeline outer wall
The orientation and displacement controller holder for revolving pushing ram orient to be sequentially fixed at displacement controller and determine positioned at monitoring pipeline both sides
To on displacement controller holder.
Preferably, the orientation with displacement controller there is internal thread, orientation to be supervised with mouth distance under displacement controller
The distance of test tube pipeline outer wall is 1.1 times of monitoring outer diameter tubes, and orientation is monitor internal diameter of the pipeline 0.04 with displacement controller internal diameter
Times.
Preferably, the traveling piston is divided into solid traveling piston, hollow traveling piston, solid traveling piston and sky
The distance of heart traveling pistons end is more than or equal to 3-4 times of aggregate the largest particles diameter.
Preferably, solid traveling piston external diameter is monitor internal diameter of the pipeline 0.04 times, solid traveling piston length is prison
Survey outer diameter tube 1.1 times, end convolution interface internal thread diameter are monitor internal diameter of the pipeline 0.04 times.
Preferably, solid mark graduation mark with hollow thread pushing ram outside, it is 1.05 that solid screw thread, which promotes pole length,
Monitoring outer diameter tube again, 0.04 times of a diameter of monitoring internal diameter of the pipeline, solid screw thread pushing ram is screwed in promote and be oriented and displacement control
It is engaged with solid traveling piston screw after device processed, the bonding length of solid screw thread pushing ram and solid traveling piston is more than or equal to
8mm；It is 1.05 times of monitoring outer diameter tubes, a diameter of monitor internal diameter of the pipeline 0.04 times, hollow spiral shell that hollow thread, which promotes pole length,
Line pushing ram screw in promote orientation is engaged with hollow traveling piston screw with after displacement controller, hollow thread pushing ram with it is hollow
The bonding length of traveling piston is more than or equal to 8mm.
A kind of thin tailing-filled big thin tailing-filled big pipe of slurry of pipeline concentration gradient monitoring device monitoring of slurry
The method of road transportation concentration gradient, the method and step specifically monitored are as follows：
（1）The thin tailing-filled slurry aggregate of selection and monitoring pipeline：Thin tailing-filled slurry aggregate is that diameter is less than or equal to 2mm
Tailings, monitoring pipe diameter are advisable with being more than or equal to 200mm；
（2）Key point concentration monitor on pipe diameter direction：Solid traveling piston and hollow traveling piston do not have radially
Reach monitoring site the former two end to fit closely, lowers hollow traveling piston after reaching monitoring site, solid traveling is kept to live
Plug and hollow traveling pistons end spacing are more than or equal to 3-4 times of aggregate the largest particles diameter, open pull-out type air pump, negative pressure extraction
Key point slurry waits the slurry for draining steady timed collection extraction, tests key point pulp density；
（3）Concentration distribution continuously monitors on pipe diameter direction：Solid traveling piston and hollow traveling pistons end spacing are more than
Equal to 3-4 times aggregate the largest particles diameter, opens pull-out type air pump, solid traveling piston and hollow traveling piston it is synchronized it is synchronous to
Lower movement, is sucked out different point slurries, and it is bent to obtain radial concentration distribution for sampling and testing difference point pulp density after drainage is stablized
Line, and then analyze slurry concentration gradient feature in large-diameter pipeline；
（4）Slurry concentration gradient monitors on conduit section：Circumferentially rotate monitoring pipeline with 30 ° of angle, obtain 0 °, 30 °, 60 °,
It is big to establish thin tailing-filled slurry according to the symmetrical feature of fluids within pipes form for 90 ° of direction radial direction concentration profiles
Diameter pipes transportation concentration gradient threedimensional model.
Preferably, the spacing of the solid traveling piston and hollow traveling pistons end is more than or equal to 3-4 times of aggregate
The largest particles diameter.
Using above-mentioned technical proposal, the present apparatus is fixed rigid small containing seam in monitoring pipeline inside diameter position vertical direction
Pipe, monitoring pipeline outer wall is symmetrically welded screw propulsion rod orientation and displacement controller, screw propulsion rod screw in and pass through controller
It is engaged with traveling piston, realizes key point concentration monitor on pipe diameter direction, realize concentration on pipe diameter direction
The continuous monitoring of distribution realizes multi-angle concentration gradient on conduit section and monitors.Change row by rotating screw propulsion rod handle
Into position of the piston inside monitoring pipeline, radial concentration profile is obtained, establishes thin tailing-filled slurry large-diameter pipeline
Transportation concentration gradient former.The device monitors pipeline by draining the method that rigid tubule negative pressure inhales blowing slurry built in conveyance conduit
Concentration distribution on section researchs and analyses fine aggregate filling slurry large-diameter pipeline transportation concentration Gradient Features, to which guidance changes
Become transportation parameters, optimization flow pattern, avoid large-diameter pipeline conveying plugging and be seriously worn, it is thin to improve large-diameter pipeline conveying
The stability and reliability of aggregate settleability slurry.
Description of the drawings
Fig. 1 is the main structure diagram of monitoring device of the present invention.
Fig. 2 is the side view of Fig. 1.
Fig. 3 is II-II sectional view of Fig. 1.
Fig. 4 is III-III sectional view of Fig. 1.
Fig. 5 is IV-IV sectional views of Fig. 1.
Fig. 6 is V-V sectional views of Fig. 1.
Fig. 7 is VI-VI sectional views of Fig. 1.
Fig. 8 is VII-V VII sectional views of Fig. 1.
Fig. 9 is VIII-VIII sectional views of Fig. 1.
Figure 10 is Ⅸ-Ⅸ sectional views of Fig. 1.
Figure 11 is Ⅹ-Ⅹ sectional views of Fig. 1.
It is marked in figure：Solid screw propulsion rod handle 1, solid screw propulsion rod 2, solid pushing ram orientation and Bit andits control
Device 3, orientation and displacement controller fixing bracket 4, solid traveling piston and pushing ram spiral interface 5, solid traveling piston 6, row
It lives into piston seal plastic cement skin 7, rubber gasket 8, monitoring pipeline 9, internal slurry outlet 10, rigid tubule 11, hollow traveling
Plug 12, hollow traveling piston and pushing ram spiral interface 13, cored screw pushing ram 14, orientation and displacement controller holder 15,
Hollow pushing ram orientation and displacement controller 16, cored screw pushing ram handle 17, pull-out type air pump 18.
Specific implementation mode
The invention will be further described with reference to the accompanying drawings and embodiments.
It should be noted that：Protection scope of the present invention is not limited to the range of specific implementation mode discussed below,
For those of ordinary skill in the art, without departing from the inventive concept of the premise, can also make it is several deformation and
It improves, these are all within the scope of protection of the present invention.
A kind of thin tailing-filled big pipeline concentration gradient monitoring device of slurry is shown in Fig. 1, Fig. 2, including monitoring pipeline,
Thin tailings is formed by rigid tubule, screw propulsion rod, orientation and displacement controller, holder, traveling piston, pull-out type air pump etc. to fill
The big pipeline concentration gradient monitoring device of extender paste, which is mounted on the horizontal pipe section in pipe-line system, for expecting
Starch the concentration distribution monitoring of flow pattern.
The screw propulsion rod of the present invention is divided into solid screw propulsion rod 2 and cored screw pushing ram 14, sees Fig. 1, Fig. 2 and figure
3, solid screw thread pushing ram 2 is external screw thread solid hopkinson bar, and outside mark promotes size scale；See Fig. 1, Fig. 2 and Figure 10, hollow thread
Pushing ram 14 is external screw thread hollow stem, and outside mark promotes size scale.
See Fig. 1, Fig. 2 and figure, 9, piston is divided into solid traveling piston 6, hollow traveling piston 12, and traveling piston is by toughness material
Material makes, and length is monitor outer diameter tube 1.1 times.
Solid screw thread pushing ram 2 is more than or equal to 8mm, hollow thread pushing ram and sky with solid 6 bonding length of traveling piston
Heart traveling piston bonding length is more than or equal to 8mm, and hollow thread pushing ram 14 is equal with hollow 12 internal diameter of traveling piston.
See Fig. 1, Fig. 2, Fig. 4, Fig. 6 and Fig. 8, Fig. 9, Figure 11, it is fixed rigid containing seam vertically in 9 inside diameter position of monitoring pipeline
Property tubule 11, with rubber gasket 8 seal rigid tubule 11 with monitor pipe wall junction.It is symmetrical to monitor pipeline outer wall
Affixed orientation and displacement controller holder 4 and 15, the orientation in 9 both sides of monitoring pipeline are symmetrically fixed on displacement controller holder
Orientation and displacement controller 3 and 16, orientation are fixed inner thread steel pipe with displacement controller.Solid screw propulsion rod 2 screws in
And engaged with displacement controller 3 with solid traveling piston by orienting, solid traveling piston 6 passes through internal thread and solid pushing ram
2 ends engage at spiral interface 5, rotating solid pushing ram handle 1, promote solid traveling piston 6 to enter built-in containing and stitch just
Property tubule 11.Cored screw pushing ram 16 screws in and by orientation and displacement controller 3, and hollow traveling piston 12 passes through internal thread
It is engaged at spiral interface 13 with hollow pushing ram 16, rotates hollow propulsion handle 17, promoted in the hollow entrance of traveling piston 12
The tubule of rigidity containing seam 11 set.Solid traveling piston 6 and hollow traveling piston 12 make of the preferable material of toughness, piston with
Containing the rigid preferable plastic sealed rubber 7 of 11 contact site smoothness of tubule of seam, convenient for piston in rigid tubule on move down
Dynamic and sealing.
The diameter that the present invention monitors pipeline 9 is advisable with being more than or equal to 200mm, and the maximum particle size of slurry aggregate is less than or equal to
2mm, built-in rigid 11 outer diameter of tubule containing seam is monitor internal diameter of the pipeline 0.04 times, and the internal diameter of rigid tubule 11 is more than or equal to aggregate
3-4 times of the largest particles diameter, the gap width of rigid tubule 11 are more than or equal to 2.5-3.5 times of aggregate the largest particles diameter.
Solid screw propulsion rod 2, cored screw pushing ram 14, orientation and the outer diameter of displacement controller 3 and 16 are monitoring internal diameter of the pipeline
0.04 times, solid pole length is promoted with cored screw is monitor 9 outer diameter of pipeline 1.05 times, cored screw pushing ram 14
3-4 times of slurry the largest particles diameter of internal diameter.The diameter of solid traveling piston 6 and hollow traveling piston 12 is in monitoring pipeline
0.04 times of diameter, length are monitor 9 outer diameter of pipeline 1.1 times, and end convolution interface internal thread diameter is monitoring internal diameter of the pipeline
0.04 times, end convolution interface outer diameter is 1.2 times of internal thread diameter.Solid screw thread pushing ram 2 and solid traveling piston 6
Bonding length is more than or equal to 8mm, and hollow thread pushing ram 14 and the bonding length of hollow traveling piston 12 are more than or equal to 8mm.
The detection method of the present invention：
The slurry aggregate of the present invention is the fine aggregate that diameter is more than or equal to 2mm, and monitoring pipe diameter is to be more than or equal to 200mm
Preferably.
After solid traveling piston 6 and hollow traveling piston 12 reach monitoring position, monitoring pipeline integrally accesses conveyance conduit
System, cored screw pushing ram handle connect pull-out type air pump 18, in pipe-line system to be conveyed after pulp flow dynamic stability, open and take out
Go out formula air pump, the slurry for monitoring position passes through slurry outlet 10, hollow traveling piston 11, hollow pushing ram 16 and pull-out type air pump
18, which are drained to monitoring pipeline external, collects, and the pulp density of position is monitored by the method test analysis of physical analysis.
The solid pushing ram handle 1 of backspin and hollow pushing ram handle 17, keep solid traveling piston and hollow traveling piston
Spacing be more than or equal to 3-4 times of aggregate the largest particles diameter.Change pipeline internal monitoring position to key position, realizes pipeline diameter
The concentration monitor of upward key position, to realize key position concentration analysis；It is continuous to change pipeline internal monitoring position, realize pipe
The continuous monitoring of road diametrically concentration gradient, to realize that the curve of pipeline radial direction concentration distribution models；The radial concentration of monitoring one
After plane distribution curve, repeatedly rotated in a circumferential direction pipeline with 30 ° of angle equal difference, the continuous monitoring of concentration gradient in repeat radial,
4 radial concentration profiles are obtained, according to the symmetrical feature of fluids within pipes form, to realize large-diameter pipeline section
The foundation and analysis of upper filling slurry three dimensional concentration gradient former.
Concrete operation method is as follows：
Rotating solid screw propulsion rod handle advances downwardly solid traveling piston, while solid traveling piston being made to enter in pipeline
The fixed radial rigidity tubule containing seam, rotates cored screw pushing ram handle, and hollow traveling piston of boosting makes hollow traveling
Piston enters the fixed radial rigidity tubule containing seam in monitoring pipeline, and solid traveling piston is at a distance from hollow traveling pistons end
More than or equal to 3-4 times particles of aggregates diameter.
Solid screw thread pushing ram handle 1 and hollow thread pushing ram handle 17 operate simultaneously, solid traveling in monitoring process
Piston 6 and hollow traveling piston 12 are moved up or are moved down simultaneously, end be remained above the drainage equal to aggregate the largest particles diameter away from
From.Pull-out type air pump is closed in piston traveling process, and pull-out type air pump is opened when piston stops advancing, and waits for that drainage is steady
The pulp density that the slurry that timed collection is drawn is monitored position is measured and is analyzed.
Solid screw thread pushing ram handle 1 and hollow thread pushing ram handle 17 operate simultaneously, solid traveling in monitoring process
Piston 6 and hollow traveling piston 12 are moved up or are moved down simultaneously, and end is remained above the drainage of equal to 4 times aggregate the largest particles diameters
Distance.Pull-out type air pump is closed in piston traveling process, and pull-out type air pump is opened when piston stops advancing, waits draining
The pulp density that the slurry that steady timed collection is drawn is monitored position is measured and is analyzed.
The solid screw thread pushing ram of the present invention has foot with solid traveling piston and hollow thread pushing ram with hollow traveling piston
Enough bonding lengths, hollow thread pushing ram is equal with hollow traveling piston inner diameter, realizes key point on pipe diameter direction
Site concentration monitors.Solid traveling piston and hollow traveling piston do not reach monitoring site the former two end and closely paste radially
It closes, hollow traveling piston is lowered after reaching monitoring site, so that the distance of the two end is more than or equal to 3-4 times of aggregate the largest particles straight
Diameter opens pull-out type air pump, and key point slurry is sucked out in negative pressure, tests key point pulp density.Realize pipe diameter side
Upward concentration distribution continuously monitors, and solid traveling piston and hollow traveling pistons end are remained above equal to 3-4 times aggregate maximum
The spacing of particle diameter opens pull-out type air pump, and solid traveling piston and hollow traveling piston move downward simultaneously at the same speed, is sucked out
Different point slurries drain steady fixed time test difference point pulp density, obtain radial concentration profile, and then analyze slurry
The concentration gradient feature in large-diameter pipeline.Monitoring pipeline is circumferentially rotated with 30 ° of angle, obtains 0 °, 30 °, 60 °, 90 ° of directions
Radial concentration profile establishes thin tailing-filled slurry large diameter pipe according to the symmetrical feature of fluids within pipes form
Road transportation concentration gradient threedimensional model.
Although above the present invention is described in detail with a general description of the specific embodiments,
On the basis of the present invention, it can be made some modifications or improvements, this will be apparent to those skilled in the art.Cause
This, these modifications or improvements, belong to the scope of protection of present invention without departing from theon the basis of the spirit of the present invention.
Claims (10)
1. a kind of thin tailing-filled big pipeline concentration gradient monitoring device of slurry, monitoring device are mounted on the water of pipe-line system
Flat tube section, the concentration distribution for slurry flow pattern monitor, and the monitoring device includes monitoring pipeline, which is characterized in that
Further include rigid tubule, screw propulsion rod, orientation and displacement controller, holder, traveling piston, pull-out type air pump；The prison
Test tube the pipeline outer wall symmetrically orientation of affixed screw propulsion rod and displacement controller holder, orientation and displacement controller；The spiral shell
Rotation pushing ram is screwed in and is engaged with displacement controller with traveling piston by orienting, and changes row by rotating screw propulsion rod handle
Into position of the piston inside monitoring pipeline, monitoring pipeline inside diameter position is vertically fixed rigid tubule, rigid tubule
Tube wall cracks, and traveling piston moves in rigid tubule, and pipe seam forms internal discharge port, rigid tubule with two-piston end spacing
It is overlapped with orientation with displacement controller axis, rigid tubule is sealed with monitoring tube contacts position with gasket；Traveling piston arrives
Up to after monitoring position, the pull-out type air pump below opening conduits, the slurry for monitoring position is discharged by inside under the action of negative pressure
Mouth is brought out monitoring pipeline external, and test analysis draws the concentration of filling slurry.
2. the thin tailing-filled big pipeline concentration gradient monitoring device of slurry according to claim 1, which is characterized in that
The small pipe outside diameter of the rigidity is monitor internal diameter of the pipeline 0.04 times, and rigid tube inner diameter is more than or equal to maximum of 3-4 times of aggregate
Grain diameter, rigid the opened gap width of tubule are more than or equal to 2.5-3.5 times of particles of aggregates diameter.
3. the thin tailing-filled big pipeline concentration gradient monitoring device of slurry according to claim 1, which is characterized in that
The screw propulsion rod has external screw thread, is divided into solid screw propulsion rod and cored screw pushing ram, the rotation of cored screw pushing ram
Enter and by orientation and displacement controller, is engaged with hollow traveling piston；The hollow part of cored screw pushing ram is pulp flow
Go out channel, cored screw pushing ram is put plastic tube with slurry suction and connect, and plastic tube is connected with pull-out type air pump.
4. the thin tailing-filled big pipeline concentration gradient monitoring device of slurry according to claim 1, which is characterized in that
The orientation of the symmetrical affixed solid screw propulsion rod of monitoring pipeline outer wall and displacement controller holder and cored screw pushing ram are determined
It is sequentially fixed at orientation and Bit andits control positioned at monitoring pipeline both sides to displacement controller holder, orientation and displacement controller
On device holder.
5. the thin tailing-filled big pipeline concentration gradient monitoring device of slurry according to claim 1 or 4, feature exist
There is internal thread in, the orientation and displacement controller, orientation under displacement controller mouth distance monitoring pipeline outer wall away from
Outer diameter tubes are monitored from for 1.1 times, orientation is monitor internal diameter of the pipeline 0.04 times with displacement controller internal diameter.
6. according to the thin tailing-filled big pipeline concentration gradient monitoring device of slurry described in claim 1, which is characterized in that institute
The traveling piston stated is divided into solid traveling piston, hollow traveling piston, solid traveling piston and hollow traveling pistons end away from
From more than or equal to 3-4 times aggregate the largest particles diameter.
7. the thin tailing-filled big pipeline concentration gradient monitoring device of slurry according to claim 1, which is characterized in that
Solid traveling piston external diameter is monitor internal diameter of the pipeline 0.04 times, and solid traveling piston length is more than or equal to monitoring outer diameter tube
1.1 times, end convolution interface internal thread diameter is monitor internal diameter of the pipeline 0.04 times.
8. the thin tailing-filled big pipeline concentration gradient monitoring device of slurry according to claim 1, which is characterized in that
Graduation mark is marked on the outside of solid screw propulsion rod, it is 1.05 times of monitoring outer diameter tubes, a diameter of prison that solid screw thread, which promotes pole length,
Survey 0.04 times of internal diameter of the pipeline, solid screw thread pushing ram screw in promote orientation with after displacement controller with solid traveling piston screw
The bonding length of engagement, solid screw thread pushing ram and solid traveling piston is more than or equal to 8mm；Mark on the outside of cored screw pushing ram
Graduation mark, it is 1.05 times of monitoring outer diameter tubes that hollow thread, which promotes pole length, 0.04 times of a diameter of monitoring internal diameter of the pipeline, hollow
Screw thread pushing ram, which screws in, promotes orientation to be engaged with hollow traveling piston screw with after displacement controller, hollow thread pushing ram and sky
The bonding length of heart traveling piston is more than or equal to 8mm.
9. a kind of monitoring thin tailings described in claim 1 with the thin tailing-filled big pipeline concentration gradient monitoring device of slurry
The method of the big pipeline concentration gradient of filling slurry, the method and step specifically monitored are as follows：
（1）The thin tailing-filled slurry aggregate of selection and monitoring pipeline：Thin tailing-filled slurry aggregate is that diameter is less than or equal to 2mm
Tailings, monitoring pipe diameter are advisable more than or equal to 200mm；
（2）Key point concentration monitor on pipe diameter direction：Solid traveling piston and hollow traveling piston do not have radially
Reach monitoring site the former two end to fit closely, lowers hollow traveling piston after reaching monitoring site, solid traveling is kept to live
Plug and hollow traveling piston space are away from opening pull-out type air pump, negative pressure extracts key point slurry out, waits draining steady timed collection extraction
Slurry, test key point pulp density；
（3）Concentration distribution continuously monitors on pipe diameter direction：Solid traveling piston and hollow traveling pistons end keep spacing,
Spacing is more than or equal to 3-4 times of the largest particles aggregate diameter；Pull-out type air pump is opened, solid traveling piston and hollow traveling piston are same
Speed moves downward simultaneously, and different point slurries are sucked out, and drains steady fixed time test difference point pulp density, obtains radial concentration point
Cloth curve, and then analyze slurry concentration gradient feature in large-diameter pipeline；
（4）Slurry concentration gradient monitors on conduit section：Circumferentially rotate monitoring pipeline with 30 ° of angle, obtain 0 °, 30 °, 60 °,
It is big to establish thin tailing-filled slurry according to the symmetrical feature of fluids within pipes form for 90 ° of direction radial direction concentration profiles
Diameter pipes transportation concentration gradient threedimensional model.
10. according to claim 9 monitor thin tail with the thin tailing-filled big pipeline concentration gradient monitoring device of slurry
The method of the big pipeline concentration gradient of sandfilling slurry, which is characterized in that the solid traveling piston is lived with hollow traveling
The spacing for filling in end is more than or equal to 3-4 times of aggregate the largest particles diameter.
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