CN107064227B - device and method for monitoring paste filling pipeline - Google Patents
device and method for monitoring paste filling pipeline Download PDFInfo
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- CN107064227B CN107064227B CN201710175467.3A CN201710175467A CN107064227B CN 107064227 B CN107064227 B CN 107064227B CN 201710175467 A CN201710175467 A CN 201710175467A CN 107064227 B CN107064227 B CN 107064227B
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- G—PHYSICS
- G01—MEASURING; TESTING
- G01N—INVESTIGATING OR ANALYSING MATERIALS BY DETERMINING THEIR CHEMICAL OR PHYSICAL PROPERTIES
- G01N27/00—Investigating or analysing materials by the use of electric, electrochemical, or magnetic means
- G01N27/02—Investigating or analysing materials by the use of electric, electrochemical, or magnetic means by investigating impedance
- G01N27/04—Investigating or analysing materials by the use of electric, electrochemical, or magnetic means by investigating impedance by investigating resistance
- G01N27/041—Investigating or analysing materials by the use of electric, electrochemical, or magnetic means by investigating impedance by investigating resistance of a solid body
Abstract
The invention discloses a device for monitoring paste filling pipelines, which comprises a circular opening snap ring with an adjustable opening and a polarizability measuring device, wherein the polarizability measuring device comprises a power supply electrode, a measuring electrode, a power supply, a signal amplifier, a single chip microcomputer and a PC (personal computer), the power supply electrode and the measuring electrode are arranged in pairs in the circular opening snap ring, the power supply electrode is connected with a power supply, the measuring electrode on the upper part of the snap ring is connected with the single chip microcomputer, the measuring electrode on the lower part of the snap ring is connected with the signal amplifier, the signal amplifier is connected with the single chip microcomputer, the single chip microcomputer is connected with the PC computer, the signal amplifier, the single chip microcomputer and the PC computer are all connected with a second power supply, and the elements are all connected through leads.
Description
Technical Field
The invention relates to a device and a method for monitoring a paste filling pipeline, belonging to the technical field of paste filling material pipeline conveying.
Background
The paste filling refers to a process of optimally combining or more filling materials with water to prepare a toothpaste-like cementing body with good stability, fluidity and plasticity, and conveying the toothpaste-like cementing body to a goaf in a plunger flow mode under the action of gravity or an external force (pumping pressure) to finish filling operation.
The paste filling mining has the advantages of solving the collapse type mining of coal mines in China, preventing goafs from collapsing, protecting the environment, being beneficial to improving the mining safety, reducing the damage to water resources, land, buildings and the like in the filling mining compared with the traditional collapse type goaf processing method, effectively freeing residual coal pillars of three places, improving the utilization rate of resources, prolonging the service life of mines, effectively utilizing waste gangue and the like to recycle wastes, but has the defect that pipeline blockage is easily caused due to the fact that the flowing speed of a bend is slowed down and the like in the conveying process, the normal operation of filling operation is influenced by pipe blockage, huge economic loss is caused to the whole filling system, pipe blockage accidents are technical problems needing deep research and solution, and which is an important means for predicting whether pipe blockage occurs is to detect slurry in the pipeline and is judged by observing the change of indexes in the pipeline.
The most existing methods are to detect the pressure of the pipe wall to judge whether the pipe is blocked, if the pressure of the sections of the pipe in the front is increased when a certain section of the pipe is blocked, the pressure of the sections of the pipe in the front is increased, the traditional pressure sensor used at present is required to have higher wear resistance because slurry flowing at high speed is in the pipe when the pressure of the pipe wall is measured, and in addition, large aggregates in a paste filling material are easy to damage the pressure sensor, so that the detection effect cannot be achieved.
Disclosure of Invention
The invention aims to provide devices and methods for monitoring paste filling pipelines, which have the advantages of simple principle, lower cost and convenient operation.
The invention provides devices for monitoring paste filling pipelines, which comprise a circular opening clamping ring and a polarizability measuring device;
the circular opening clamping ring is a hollow ring with an adjustable opening, positions for fixing electrodes are uniformly arranged in the ring, a connecting piece is arranged at the opening of the circular opening clamping ring, and the clamping ring is fixed on the outer side of a paste filling pipeline to be detected through the connecting piece;
the polarizability measuring device comprises a power supply electrode, a measuring electrode, a power supply, a signal amplifier, a single chip microcomputer and a PC computer, wherein the power supply electrode and the measuring electrode are arranged in a circular opening snap ring, pairs of power supply electrodes and pairs of measuring electrodes are respectively arranged in the snap ring, power supply electrodes and measuring electrodes are respectively arranged in the upper half circular ring, power supply electrodes and measuring electrodes are arranged in the lower half circular ring in a crossed mode, the adjacent power supply electrodes and the measuring electrodes are connected through a lead, the power supply electrodes are connected with a power supply, the measuring electrodes on the upper portion of the snap ring are connected with the single chip microcomputer, the measuring electrodes on the lower portion of the snap ring are connected with the signal amplifier, the signal amplifier is connected with the single chip microcomputer, the single chip microcomputer is connected with the PC computer, the signal amplifier, the single chip.
In the device, four electrodes are arranged in the circular opening clamping ring, and the total length of the four electrodes accounts for 1/2 of the circumference of the circular ring.
In the device, the positions of the four fixed electrodes are uniformly arranged in the circular opening snap ring and are fan-shaped fixed modules, and the central angle corresponding to each fan-shaped fixed module is 45 degrees.
In the device, the connecting piece is an adjusting screw, the edge of the clamping ring is provided with an aluminum alloy sheet with a screw hole, and the adjusting screw is connected with the clamping ring.
In the device, the single chip microcomputer is an 8031 single chip microcomputer in MSC-51 series, the signal amplifier is ISOEM A-P-O series, and the signal converter is an analog-to-digital converter.
The invention provides methods for monitoring a paste filling pipeline, which comprises the following steps:
(1) connecting a polarizability measuring device, namely connecting adjacent power supply electrodes and measuring electrodes through leads, wherein the power supply electrodes are connected with an th power supply, the measuring electrodes on the upper part of the snap ring are connected with a single chip microcomputer, the measuring electrodes on the lower part of the snap ring are connected with a signal amplifier, the signal amplifier is connected with the single chip microcomputer, the single chip microcomputer is connected with a PC computer, and the signal amplifier, the single chip microcomputer and the PC computer are all connected with a second power supply;
(3) the method comprises the steps of installing installed circular opening clamping rings on the outer sides of paste filling pipelines to be tested, fastening the circular opening clamping rings through adjusting screws, arranging a plurality of clamping ring monitoring points on filling pipelines according to requirements, and arranging a plurality of circular opening clamping rings;
a plurality of monitoring points are arranged to monitor the polarizability at different positions, so that abnormality can be found in time;
(4) when filling begins, the th power supply is closed to charge the power supply electrode, the th power supply is disconnected after periods of time, at the moment, the power supply electrode begins to supply power to the measuring electrode, the second power supply is closed, each electrical appliance element is started, the measuring electrode can measure the polarizability of slurry in the pipeline, signals are transmitted to the single chip microcomputer after being amplified by the signal amplifier, the signals are transmitted to the PC computer after being processed by the single chip microcomputer, the signal size of different places on the pipeline is obtained on the PC computer, whether pipe blockage occurs between two points is judged according to signal abnormality between two measuring points, when pipe blockage occurs in a certain section of pipeline, the polarizability at the position is increased, and therefore the position of the pipe blockage can be accurately positioned.
The invention has the beneficial effects that:
the pipe blockage monitoring device provided by the invention is simple in structure, low in cost and convenient to disassemble and assemble, the monitoring device is arranged outside a pipeline, compared with devices arranged in the pipeline, the monitoring device is free from abrasion and damage of slurry to the device in the aspect of , long in service life and cost-saving, and in addition, in the aspect of , the split snap ring is simple in structure and beneficial to disassembly, installation and manufacture.
Drawings
FIG. 1 is a schematic structural diagram of a device for monitoring a paste filling pipeline according to the present invention;
FIG. 2 is a cross-sectional view of the circular snap ring of FIG. 1;
in the figure, 1 is th power supply, 2 is a power supply electrode, 3 is a measuring electrode, 4 is a circular open snap ring, 5 is a single chip microcomputer, 6 is a signal amplifier, 7 is a PC computer, 8 is a second power supply, 9 is an adjusting screw rod, and 10 is a lead.
Detailed Description
The invention is further illustrated by, but is not limited to, the following examples .
Example 1:
as shown in FIGS. 1-2, devices for monitoring paste filling pipelines comprise a circular opening clamp ring 4 and a polarizability measuring device;
circular opening snap ring 4 is the hollow ring with adjustable opening, has arranged four fixed electrode's position in the ring, evenly arranged four fixed electrode's position in the circular opening snap ring, for fan-shaped fixed module, the central angle that every fan-shaped fixed module corresponds is 45 degrees. A connecting piece is arranged at the opening of the round opening clamping ring, and the clamping ring is fixed on the outer side of the paste filling pipeline to be detected through the connecting piece; the connecting piece is an adjusting screw 9, the edge of the clamping ring is provided with an aluminum alloy sheet with a screw hole, and the adjusting screw is connected with the clamping ring.
The polarizability measuring device comprises a power supply electrode 2, a measuring electrode 3, a power supply, a signal amplifier 6, a single chip microcomputer 5 and a PC computer 7, wherein the power supply electrode 2 and the measuring electrode 3 are arranged in a circular opening clamping ring 4, pairs of power supply electrodes 2 and pairs of measuring electrodes 3 are respectively arranged in the clamping ring, pairs of power supply electrodes 2 and pairs of measuring electrodes 3 are respectively arranged in the upper half ring, pairs of power supply electrodes 2 and pairs of measuring electrodes 3 are arranged in the lower half ring in a crossed mode, the adjacent power supply electrodes 2 and the measuring electrodes 3 are connected through a lead 10, the power supply electrodes 2 are connected with a power supply 1, the measuring electrodes 3 on the upper portion of the clamping ring are connected with the single chip microcomputer 5, the measuring electrodes 3 on the lower portion of the clamping ring are connected with the signal amplifier 6, the signal amplifier 6 is connected with the single chip microcomputer 5, the single chip microcomputer 5 is connected with the PC computer 7, the signal amplifier 6.
In the device, the circular split snap ring 4 is internally provided with four electrodes, and the total length of the four electrodes accounts for 1/2 of the circumference of the circular ring.
The single chip microcomputer 5 is an 8031 single chip microcomputer in MSC-51 series, the signal amplifier is ISO EM A-P-O series, and the signal converter is an analog-to-digital converter.
The specific monitoring method of the monitoring device comprises the following steps:
(1) respectively fixing the power supply electrode 2 and the measuring electrode 3 at specified symmetrical positions in the circular open clamping ring 4, sleeving the circular open clamping ring 4 on a pipeline to be measured, and fastening the circular open clamping ring 4 through an adjusting screw rod;
(2) a power supply electrode 2 is connected with an th power supply 1, an upper electrode of a measuring electrode 3 is connected with a singlechip 5, a lower electrode of the measuring electrode is connected with an inlet end of a signal amplifier 6, an outlet end of the signal amplifier 6 is connected with an inlet end of the singlechip 5, an outlet end of the singlechip 5 is connected with a PC (personal computer) 7, and the signal amplifier 6, the singlechip 5 and the PC 7 are all connected with a power supply 8;
(3) according to the actual experiment requirements, arranging a plurality of monitoring points on the pipeline to be detected, fixing clamp rings at each monitoring point, and arranging electrodes in the clamp rings;
(4) when filling begins, power supply 1 is closed to charge the power supply electrode, periods of time later power supply 1 is disconnected, at the moment, the power supply electrode 2 begins to supply power to the measuring electrode 3, the second power supply 8 is closed to start each electrical appliance, the measuring electrode 3 can measure the polarizability of slurry in the pipeline, the signal is amplified by the signal amplifier 6 and transmitted to the singlechip 5, the signal is transmitted to the PC computer 7 after being processed by the singlechip 5, the signal size of different measuring points on the pipeline can be seen on the PC computer 7, and whether pipe blockage occurs between the two points is judged according to the signal abnormity between the two measuring points.
Claims (3)
1, device for monitoring paste filling pipeline, which is characterized in that the device comprises a circular opening snap ring and a polarizability measuring device;
the circular opening clamping ring is a hollow ring with an adjustable opening, positions for fixing electrodes are uniformly arranged in the ring, a connecting piece is arranged at the opening of the circular opening clamping ring, and the clamping ring is fixed on the outer side of a paste filling pipeline to be detected through the connecting piece; the circular opening snap ring is internally provided with four electrodes, and the total length of the four electrodes accounts for 1/2 of the circumference of the circular ring; the positions of four fixed electrodes are uniformly distributed in the circular opening snap ring and are fan-shaped fixed modules, and the central angle corresponding to each fan-shaped fixed module is 45 degrees;
the polarizability measuring device comprises power supply electrodes, measuring electrodes, a power supply, a signal amplifier, a single chip microcomputer and a PC computer, wherein the power supply electrodes and the measuring electrodes are arranged in a circular opening snap ring, pairs of power supply electrodes and pairs of measuring electrodes are respectively arranged in the snap ring, power supply electrodes and measuring electrodes are respectively arranged in the upper half circular ring, power supply electrodes and measuring electrodes are arranged in the lower half circular ring in a crossed mode, the adjacent power supply electrodes and the measuring electrodes are connected through leads, the power supply electrodes are connected with a power supply, the measuring electrodes on the upper portion of the snap ring are connected with the single chip microcomputer, the measuring electrodes on the lower portion of the snap ring are connected with the signal amplifier, the signal amplifier is connected with the single chip microcomputer, the single chip microcomputer is connected with the PC computer, the signal amplifier, the single chip microcomputer and the;
the method for monitoring the paste filling pipeline by adopting the device comprises the following steps:
(1) connecting a polarizability measuring device, namely connecting adjacent power supply electrodes and measuring electrodes through leads, wherein the power supply electrodes are connected with an th power supply, the measuring electrodes on the upper part of the snap ring are connected with a single chip microcomputer, the measuring electrodes on the lower part of the snap ring are connected with a signal amplifier, the signal amplifier is connected with the single chip microcomputer, the single chip microcomputer is connected with a PC computer, and the signal amplifier, the single chip microcomputer and the PC computer are all connected with a second power supply;
(3) the method comprises the steps of installing a circular opening clamp ring on the outer side of a paste filling pipeline to be detected, and fastening the circular opening clamp ring through an adjusting screw rod, arranging a plurality of clamp ring monitoring points on filling pipelines according to requirements, and arranging a plurality of monitoring points to monitor the polarizability at different positions so as to find abnormality in time;
(4) when filling begins, the th power supply is closed to charge the power supply electrode, the th power supply is disconnected after periods of time, at the moment, the power supply electrode begins to supply power to the measuring electrode, the second power supply is closed, all elements are started, the measuring electrode can measure the polarizability of slurry in the pipeline, signals are transmitted to the single chip microcomputer after being amplified by the signal amplifier, the signals are transmitted to the PC computer after being processed by the single chip microcomputer, the signal size of different places on the pipeline is obtained on the PC computer, whether pipe blockage occurs between two points is judged according to signal abnormality between two measuring points, when pipe blockage occurs in a certain section of pipeline, the polarizability at the position is increased, and therefore the position of the pipe blockage can be accurately positioned.
2. The device for monitoring a paste filling line according to claim 1, wherein: the connecting piece is an adjusting screw, the edge of the clamping ring is provided with an aluminum alloy sheet with a screw hole, and the adjusting screw is connected with the clamping ring.
3. The device for monitoring a paste filling line according to claim 1, wherein: the single chip microcomputer is an 8031 single chip microcomputer in MSC-51 series, the signal amplifier is ISO EM A-P-O series, and the signal converter is an analog-to-digital converter.
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| CN201710175467.3A CN107064227B (en) | 2017-03-22 | 2017-03-22 | device and method for monitoring paste filling pipeline |
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| CN201710175467.3A CN107064227B (en) | 2017-03-22 | 2017-03-22 | device and method for monitoring paste filling pipeline |
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| CN109298025B (en) * | 2018-08-28 | 2021-03-05 | 太原理工大学 | Test device and method for monitoring segregation of paste filling slurry in pipeline |
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