CN106968709A - A kind of paste filling pipe plugging monitoring device and monitoring method - Google Patents
A kind of paste filling pipe plugging monitoring device and monitoring method Download PDFInfo
- Publication number
- CN106968709A CN106968709A CN201710174967.5A CN201710174967A CN106968709A CN 106968709 A CN106968709 A CN 106968709A CN 201710174967 A CN201710174967 A CN 201710174967A CN 106968709 A CN106968709 A CN 106968709A
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- China
- Prior art keywords
- monitoring
- pipeline
- plugging
- filling pipe
- magnetic materials
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Classifications
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- E—FIXED CONSTRUCTIONS
- E21—EARTH DRILLING; MINING
- E21F—SAFETY DEVICES, TRANSPORT, FILLING-UP, RESCUE, VENTILATION, OR DRAINING IN OR OF MINES OR TUNNELS
- E21F15/00—Methods or devices for placing filling-up materials in underground workings
-
- E—FIXED CONSTRUCTIONS
- E21—EARTH DRILLING; MINING
- E21F—SAFETY DEVICES, TRANSPORT, FILLING-UP, RESCUE, VENTILATION, OR DRAINING IN OR OF MINES OR TUNNELS
- E21F17/00—Methods or devices for use in mines or tunnels, not covered elsewhere
- E21F17/18—Special adaptations of signalling or alarm devices
Abstract
The invention discloses a kind of paste filling pipe plugging monitoring device and monitoring method.The device includes monitoring pipeline and Magnetic Materials concentration determination device；Monitoring pipeline is arranged in the filling piping of lotion, Magnetic Materials concentration determination device connection monitoring pipeline.The magnetic sand necessarily matched is added into fill paste, on feed-line, the concentration of magnetic sand in lotion at pipeline diverse location is measured, when occurring plugging in pipeline, the concentration difference of magnetic sand is obvious at monitoring pipeline before and after plugging position, so as to be accurately positioned plugging position.The present invention realizes the automatic monitoring of paste filling pipe plugging, timely and accurately predicts the position that plugging may occur；Monitoring device is simple in construction, easy to operate；Multiple monitoring points can be set on a lotion transfer pipeline, and all monitoring points are finally connected on a Magnetic Materials concentration determination device, have saved cost.
Description
Technical field
The present invention relates to a kind of paste filling pipe plugging monitoring device and monitoring method, and in particular to a kind of filling in mine
The long range paste filling pipe plugging monitoring device and method of exploitation, belong to Paste Backfilling With Piping conveying technology field.
Background technology
Paste body filling exploitation can efficiently control surface subsidence as one kind, and ground gangue, fine coal dust heap can be solved again
Contamination contaminates problem, realizes the new technology of Coal Green exploitation, is widely applied in " under three " exploit.
Paste body filling exploitation refers to be fabricated to material on ground the paste slurry of " no critical flow velocity, be not required to dehydration ", leads to
Piping is delivered to underground, the coal-mining method of in good time bashing.In course of conveying, debris, which enters pipeline, slurry, to be occurred
Isolate the reasons such as precipitation, pumping pressure are not enough, corner flowing velocity slows down and easily cause line clogging.Plugging not only influences
Being normally carried out for packing job, causes huge economic losses, and can pollute subsurface environment to whole filling system.Pipeline jam accident
Being one has technical barrier to be solved, and the flow regime of monitoring slurry in the duct is that anticipation plugging occurs and determines to block position
The important means put, therefore, the exploitation of plugging monitoring technology are one of heavy difficult points that paste body filling technology is implemented.
The method of detection pipe wall pressure power is mainly taken to carry out plugging detection at present, when there is plugging in certain section of pipeline, its
The situation of pressure rise occurs in pipeline above.Currently inner-walls of duct pressure is examined with common pressure sensor
Survey, the fast wearability to pressure sensor of flow velocity of the one side slurry in pipeline requires higher, on the other hand containing big particle diameter
The paste filling material of aggregate easily causes pressure sensor failure, can't detect pressure.Chinese patent CN103454099 A
A kind of paste filling pipe plugging monitoring device is disclosed, the monitoring device is installed between transfer pipeline, when loine pressure increases
When greatly to the resistance more than spring, spring promotes connecting rod contact hair detection means simultaneously to send plugging alarm signal, is reached with this
Plugging is monitored.The device uses mechanical driving device, complicated, higher to the sensitivity requirement of device.When the conveying of pipeline
, it is necessary to arrange a large amount of such detection means when distance is longer, cost is higher.
The content of the invention
The present invention is intended to provide a kind of paste filling pipe plugging monitoring device and monitoring method, its simple in construction, cost
It is relatively low, realize being accurately positioned for plugging position.
The invention provides a kind of paste filling pipe plugging monitoring device, including monitoring pipeline and Magnetic Materials concentration determination
Device：
The internal diameter of the monitoring pipeline is consistent with the internal diameter of the pipeline on paste filling pipe, and filling is connected to by flange and nut
Between pipeline；
Provided with the lotion for being mixed with Magnetic Materials in monitoring pipeline, monitoring pipeline external connection Magnetic Materials concentration determination device；
The Magnetic Materials concentration determination device includes current converter, signal amplifier, single-chip microcomputer, PC computers, constant-current source, electricity
Source；The arrival end of current converter is connected with magentic test coil, and port of export connection signal amplifier, the port of export of signal amplifier connects
Single-chip microcomputer is connect, single-chip microcomputer is connected with PC computers；The induced electromotive force that magentic test coil is produced is converted to direct current by current converter
Electric current, signal amplifier is amplified and LPF to current signal, and the Static Electro of different amplification is provided for single-chip microcomputer
Flat, the analog signal that signal amplifier is provided is converted to data signal and carries out data processing by the ADC in single-chip microcomputer, single
Piece machine draws the Magnetic Materials concentration at monitoring pipeline according to data signal, and PC computers are by the Magnetic Materials of diverse location along pipeline
Concentration is depicted as figure；Magnet exciting coil is connected with constant-current source；Constant-current source, current converter, signal amplifier, single-chip microcomputer, PC meters
Calculation machine is connected with power supply；
The monitoring pipeline is constituted by inside and outside two layers, a magnet exciting coil and magentic test coil is wound on internal layer, outer layer covers exist
On coil, i.e., coil is between the inner and outer wall of monitoring pipeline；Magnet exciting coil and magentic test coil are two kinds, magnet exciting coil winding
In monitoring pipeline left end, magentic test coil is wrapped in monitoring pipeline right-hand member.
In said apparatus, the monitoring pipeline is made of non-permeable material, and monitoring outer diameter tube is more than paste body filling
The external diameter of pipeline.
In said apparatus, constant-current source, current converter, signal amplifier inside the Magnetic Materials concentration determination device,
Single-chip microcomputer, PC computers, power supply are connected and are integrated into an equipment box.
In said apparatus, the single-chip microcomputer model C8051F060, signal amplifier is GA204, PGA205 two-stage journey
Instrument is controlled, is cascaded with amplifier, the programmable-gain of the programmable amplifying circuit after cascade is combined as 1,2,4,8,10,20,40,80,
100,200,400,800,1000,2000,4000,8000, it disclosure satisfy that the requirement of data acquisition.
, need to be to conveying cream using above-mentioned monitoring device the invention provides a kind of paste filling pipe plugging monitoring method
Magnetic sand is added in body, the wherein addition of magnetic sand is 10kg/m3。
In the magnetic sand, more than 1.7mm（Particle diameter be less than or equal to 2mm for sand grains）The content of grade should be above
85%。
The invention provides a kind of paste filling pipe plugging monitoring method, using above-mentioned monitoring device, including following step
Suddenly：
（1）Monitoring pipeline is connected on filling pipeline by screwed flange and nut, it is ensured that its sealing；In same filling
Multiple monitoring points are set on circuit, and the number of monitoring point is determined according to actual needs；It is provided with monitoring pipeline and is mixed with magnetic iron ore
The lotion of sand；
（2）Connect Magnetic Materials concentration determination device and monitoring pipeline：By the monitoring magentic test coil of pipeline and entering for current converter
Mouth end connection, magnet exciting coil is connected with constant-current source；
（3）When filling pipeline starts conveying lotion, turn on the power switch, start between PC computers, observation different monitoring points
The change in concentration situation of magnetic sand, when the magnetic sand concentration of two neighboring monitoring point has significant difference, illustrates the two
Pipeline is likely to occur plugging between monitoring point, and plugging pipeline is handled in time, so as to ensure the safety of whole filling piping.
The principle of the present invention：By the way that said apparatus is installed in the middle of filling piping, it can measure on filling pipeline everywhere
The concentration of magnetic sand in lotion, when occurring plugging in pipeline, the magnetic sand before and after its plugging position at monitoring pipeline is dense
Difference is spent substantially, it is achieved thereby that plugging position is accurately positioned.
Beneficial effects of the present invention：The invention provides a kind of paste filling pipe plugging monitoring device, lotion is realized
The automatic monitoring of filling piping plugging, timely and accurately predicts the position that plugging may occur；This monitoring device is simple in construction,
It is easy to operate；Multiple monitoring pipelines can be set on a lotion transfer pipeline, a Magnetic Materials concentration determination is finally connected to
On device, cost has been saved.
Brief description of the drawings
Fig. 1 is the structural representation of paste filling pipe plugging monitoring device of the present invention；
Fig. 2 is the profile in Fig. 1 along line A-A；
Fig. 3 is monitoring pipeline and the connection diagram of filling piping；
In figure：1 is monitoring pipeline, and 2 be flange, and 3 be filling pipeline, and 4 be magnet exciting coil, and 5 be magentic test coil, and 6 be nut, and 7 are
Current converter, 8 be signal amplifier, and 9 be single-chip microcomputer, and 10 be PC computers, and 11 be constant-current source, and 12 be power supply, and 13 be magnetic
Thing concentration determination device.
Embodiment
The present invention is further illustrated below by embodiment, but is not limited to following examples.
Embodiment：
As shown in figure 1, a kind of paste filling pipe plugging monitoring device, including monitoring pipeline 1, Magnetic Materials concentration determination device
13；Monitor one magnet exciting coil of winding and magentic test coil on the internal layer of pipeline 1；The Magnetic Materials concentration determination device turns including electric current
Parallel operation 7, signal amplifier 8, single-chip microcomputer 9, PC computers 10, the arrival end of constant-current source 11 and power supply 12, wherein current converter 7
Magentic test coil 4 is connected, the arrival end of signal amplifier 8 connects the port of export of current converter 7, the port of export of signal amplifier 8
Connect the arrival end of single-chip microcomputer 9, the port of export connection PC computers 10 of single-chip microcomputer 9.Current converter 7 produces magentic test coil 5
Induced electromotive force be converted to DC current, the current signal that signal amplifier 8 is exported to current converter 7 is amplified and low
Pass filter, is that the ADC in the dead level that single-chip microcomputer 9 provides different amplification, single-chip microcomputer 9 carries signal amplifier 8
The analog signal of confession is converted to data signal and carries out data processing, and single-chip microcomputer 9 is drawn at monitoring pipeline according to data signal
The magnetic sand concentration of diverse location along pipeline is depicted as figure by Magnetic Materials concentration, PC computers 10.Magnet exciting coil 4 is connected
Constant-current source 11, current converter 7, signal amplifier 8, single-chip microcomputer 9, PC computers 10, the connection power supply 12 of constant-current source 11.
In said apparatus, current converter, signal amplifier, single-chip microcomputer inside the Magnetic Materials concentration determination device,
PC computers, constant-current source, power supply are connected and are integrated into an equipment box.
In said apparatus, the single-chip microcomputer model C8051F060 of selection, signal amplifier is GA204, PGA205 two-stage
Program control instrument is cascaded with amplifier, and the programmable-gain of the programmable amplifying circuit after cascade is combined as 1,2,4,8,10,20,40,
80,100,200,400,800,1000,2000,4000,8000, it disclosure satisfy that the requirement of data acquisition.
The monitoring pipe is constituted by inside and outside two layers, and a magnet exciting coil and magentic test coil, outer layer covers are wound on internal layer
On coil, as shown in Figure 2.
Fig. 3 is monitoring pipeline 1 and the connection diagram of filling pipeline 3, and monitoring pipeline 1 is connected to two by flange 2 and nut 6
Between the adjacent filling pipeline of root.The monitoring pipeline 1 is made of non-permeable material, and the external diameter of monitoring pipeline 1 is more than cream
The external diameter of body filling piping.
The course of work of monitoring device of the present invention is：
（1）Monitoring pipeline 1 is connected on filling pipeline by screwed flange 2 and nut 6, it is ensured that its sealing；In same
Multiple monitoring points are set on filling circuit, the number of monitoring point is determined according to actual needs；It is thin provided with being mixed with monitoring pipeline
The lotion of the magnetic sand of mill, adding proportion is 10kg/m3Lotion；In the magnetic sand, more than the content of 1.7mm grades
It should be above 85%.
（2）Connect Magnetic Materials concentration determination device 13 and monitoring pipeline 1：The magentic test coil 5 for monitoring pipeline 1 is turned with electric current
The arrival end connection of parallel operation 7, magnet exciting coil 4 is connected with constant-current source 11;
（3）When filling pipeline starts conveying lotion, turn on the power switch, start between PC computers, observation different monitoring points
The change in concentration situation of magnetic sand, when the magnetic sand concentration of two neighboring monitoring point has significant difference, illustrates the two
Pipeline is likely to occur plugging between monitoring point, and plugging pipeline is handled in time, so as to ensure the safety of whole filling piping.
Claims (7)
1. a kind of paste filling pipe plugging monitoring device, it is characterised in that：Including monitoring pipeline and Magnetic Materials concentration determination dress
Put：
The internal diameter of the monitoring pipeline is consistent with the internal diameter of the pipeline on paste filling pipe, and filling is connected to by flange and nut
Between pipeline；
Provided with the lotion for being mixed with Magnetic Materials in monitoring pipeline, monitoring pipeline external connection Magnetic Materials concentration determination device；
The Magnetic Materials concentration determination device includes current converter, signal amplifier, single-chip microcomputer, PC computers, constant-current source, electricity
Source；The arrival end of current converter is connected with magentic test coil, and port of export connection signal amplifier, the port of export of signal amplifier connects
Single-chip microcomputer is connect, single-chip microcomputer is connected with PC computers；The induced electromotive force that magentic test coil is produced is converted to direct current by current converter
Electric current, signal amplifier is amplified and LPF to current signal, and the Static Electro of different amplification is provided for single-chip microcomputer
Flat, the analog signal that signal amplifier is provided is converted to data signal and carries out data processing by the ADC in single-chip microcomputer, single
Piece machine draws the Magnetic Materials concentration at monitoring pipeline according to data signal, and PC computers are by the Magnetic Materials of diverse location along pipeline
Concentration is depicted as figure；Magnet exciting coil is connected with constant-current source；Constant-current source, current converter, signal amplifier, single-chip microcomputer, PC meters
Calculation machine is connected with power supply；
The monitoring pipeline is constituted by inside and outside two layers, a magnet exciting coil and magentic test coil is wound on internal layer, outer layer covers exist
On coil；Magnet exciting coil is wrapped in monitoring pipeline left end, and magentic test coil is wrapped in monitoring pipeline right-hand member.
2. paste filling pipe plugging monitoring device according to claim 1, it is characterised in that：The monitoring pipeline is used
Non-permeable material is made, and monitoring outer diameter tube is more than the external diameter of paste filling pipe.
3. paste filling pipe plugging monitoring device according to claim 1, it is characterised in that：The Magnetic Materials concentration is surveyed
Constant-current source, current converter, signal amplifier, single-chip microcomputer, PC computers, the power supply that inside is put in trial assembly connect and are integrated into one
In individual equipment box.
4. paste filling pipe plugging monitoring device according to claim 1, it is characterised in that：The single-chip microcomputer model
C8051F060, signal amplifier is GA204, PGA205 two-stage program control instrument, is cascaded with amplifier, the programming amplifying after cascade
The programmable-gain of circuit is combined as 1,2,4,8,10,20,40,80,100,200,400,800,1000,2000,4000,
8000, it disclosure satisfy that the requirement of data acquisition.
5. a kind of paste filling pipe plugging monitoring method, is blocked up using the paste filling pipe described in any one of claim 1 ~ 4
Pipe monitoring device, it is characterised in that：Comprise the following steps：
（1）Monitoring pipeline is connected on Paste Backfilling With Piping by screwed flange and nut, it is ensured that its sealing；In same
Multiple monitoring points are set on filling pipeline, and the number of monitoring point is determined according to actual needs；It is provided with monitoring pipeline and is mixed with magnetic
The lotion of property thing；
（2）Connect Magnetic Materials concentration determination device and monitoring pipeline：By the monitoring magentic test coil of pipeline and entering for current converter
Mouth end connection, magnet exciting coil is connected with constant-current source；
（3）When filling pipeline starts conveying lotion, turn on the power switch, start between PC computers, observation different monitoring points
The change in concentration situation of Magnetic Materials, when the magnetic sand concentration of two neighboring monitoring point has significant difference, illustrates that the two are supervised
Pipeline is likely to occur plugging between measuring point, and plugging pipeline is handled in time, so as to ensure the safety of whole filling piping.
6. paste filling pipe plugging monitoring method according to claim 5, it is characterised in that：The Magnetic Materials are magnet
The addition of ore in sand form, wherein magnetic sand is 10kg/m3。
7. paste filling pipe plugging monitoring method according to claim 6, it is characterised in that：In the magnetic sand,
Mass content more than 1.7mm grades should be above 85%.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201710174967.5A CN106968709B (en) | 2017-03-22 | 2017-03-22 | Pipe blockage monitoring device and monitoring method for paste filling pipeline |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201710174967.5A CN106968709B (en) | 2017-03-22 | 2017-03-22 | Pipe blockage monitoring device and monitoring method for paste filling pipeline |
Publications (2)
| Publication Number | Publication Date |
|---|---|
| CN106968709A true CN106968709A (en) | 2017-07-21 |
| CN106968709B CN106968709B (en) | 2019-12-13 |
Family
ID=59328883
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN201710174967.5A Active CN106968709B (en) | 2017-03-22 | 2017-03-22 | Pipe blockage monitoring device and monitoring method for paste filling pipeline |
Country Status (1)
| Country | Link |
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| CN (1) | CN106968709B (en) |
Cited By (2)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN109578071A (en) * | 2019-01-18 | 2019-04-05 | 北京科技大学 | A kind of movable-type intelligent Paste-filling System |
| CN114923131A (en) * | 2022-05-18 | 2022-08-19 | 昆明理工大学 | Method and device for detecting pipeline siltation |
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| CN106093131A (en) * | 2016-06-16 | 2016-11-09 | 太原理工大学 | A kind of paste filling pipe plugging monitoring device and method |
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| CN1103164A (en) * | 1993-11-17 | 1995-05-31 | 哈尔滨蓝波高技术开发有限公司 | Vibration shell density sensor |
| CN201141845Y (en) * | 2007-12-25 | 2008-10-29 | 南化集团研究院 | Electromagnetic concentration analyzer outside pipes |
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Cited By (3)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN109578071A (en) * | 2019-01-18 | 2019-04-05 | 北京科技大学 | A kind of movable-type intelligent Paste-filling System |
| CN114923131A (en) * | 2022-05-18 | 2022-08-19 | 昆明理工大学 | Method and device for detecting pipeline siltation |
| CN114923131B (en) * | 2022-05-18 | 2024-01-26 | 昆明理工大学 | Method and device for detecting pipeline siltation |
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| Publication number | Publication date |
|---|---|
| CN106968709B (en) | 2019-12-13 |
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