CN102313585A - Tracking type coal bunker material level measurement device - Google Patents
Tracking type coal bunker material level measurement device Download PDFInfo
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- CN102313585A CN102313585A CN201110217718A CN201110217718A CN102313585A CN 102313585 A CN102313585 A CN 102313585A CN 201110217718 A CN201110217718 A CN 201110217718A CN 201110217718 A CN201110217718 A CN 201110217718A CN 102313585 A CN102313585 A CN 102313585A
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Abstract
The invention relates to a tracking type coal bunker material level measurement device and belongs to the technical field of automatic detection and measurement. The tracking type coal bunker material level measurement device is characterized in that the continuous coal bunker material level automatic measurement device consists of a probe 1, a transmission system and a measurement system; the probe 1 is a metal cone hollow body; the whole metal cone hollow body is filled with epoxy resin; an upper limit sensor 2 and a lower limit sensor 3 are mounted inside the metal cone hollow body; the upper limit sensor 2 and the lower limit sensor 3 are reflection infrared photoelectric proximity switches integrating transmitters with receivers; when a material level in a coal bunker is changed, switching value signals output by the upper limit sensor 2 and the lower limit sensor 3 are transmitted to a material level intelligent meter 11 through an electric cable 4; the transmission system consists of a steel wire rope 5, a pulley 6, a motor 7, a speed reducer 8 and a steel wire rope roller 9; and the measurement system consists of a coding sensor 10 and the material level intelligent meter 11. The tracking type coal bunker material level measurement device has the advantages of high measurement precision, long service life and continuous dynamic tracking measurement and is mainly used for measuring the material level of the coal bunker of a coal mine, a coal washery and a power station.
Description
Technical field
A kind of tracking mode coal bunker of the present invention apparatus for measuring charge level; Belong to robotization and detect field of measuring techniques; It is a kind of continuously uninterrupted coal bunker material level automatic measurement mechanism, has overcome in the existing measurement means solid material angle of repose to bigger this drawback of influence of level gauging precision.Be mainly used in colliery, coal washery and generating plant and be used for measuring the material level of coal bunker.
Background technology
Coal bunker is the key facility of the temporary raw coal in large-scale colliery, generating plant and coal washery; In most cases being the upright cylinder that forms with concrete casting, is one group with two, four or eight generally, tens meters of diameters; Four or five ten meters of height are about the volume 5000 cubic meter sides of each coal bunker.The material level of coal bunker is important technical parameter that needs are in time controlled in the production run.
The charging aperture of coal bunker is generally in the upper end; And discharging opening is in the lower end; If only not discharging of charging can form a cone in the upper end of material, if only not charging of discharging; Can form a conical funnel body in the upper end of material, this phenomenon is called the material angle of repose in powder technology scientific principle opinion.The size of angle of repose and the particle shape of material, fineness, size-grade distribution and cohesiveness have direct relation.The angle of repose that the coal of different coals forms in coal bunker naturally is substantially between 27 °～45 °.
The existence of angle of repose is to cause the existing not high main cause of coal bunker level gauging commercial measurement precision, and the method for measuring the coal bunker material level at present in the prior art has contactless and two big types of sensors of contact.Contactless level sensor commonly used has radar type and ultrasonic type; Be installed in the top of coal bunker; Level sensor is to material table surface launching electromagnetic wave or ultrasound wave, and electromagnetic wave or ultrasound wave that acceptance simultaneously reflects calculate electromagnetism and involve the time that ultrasound wave is propagated in air; Convert distance to, thereby calculate the height of material level.Because the existence of angle of repose, the material surface is not the plane, and electromagnetic wave that reflects or ultrasound wave are disorderly and unsystematic not to have rule to follow, and causes this type sensor measurement precision generally not high.The contact level sensor is commonly used has Weight type and two kinds of forms of adherent installing type; Adherent installing type sensor is installed on the bulkhead of coal bunker; Because the installation form restriction can not reflect the actual conditions of angle of repose, causes this type sensor maximum error can reach 20% at all.
Weight type is installed in the top of coal bunker, is made up of weight, wire rope, reductor, motor, LOAD CELLS, position transducer and intelligence table.The control motor descends weight during measurement, and after weight contacted material, LOAD CELLS sent signal; The stall of control motor, this moment, the position transducer counting showed material level, measuring process finishes the top that the back weight must rise to coal bunker at once; Wait for next time and measuring that solid material buries otherwise weight might be come in, so Weight type is a kind of discontinuous measurement method; Do not reflect the situation of change of material level in twice measurement at interval, can not meet the demands when technological requirement is high, want to improve measuring accuracy; Must increase and measure number of times, the problem of bringing is that failure rate increases, and reduce serviceable life significantly.
Comprehensively said; Angle of repose is an obstacle maximum in the solid material level gauging, is to cause the conventional instrument can't be to its main cause of accurately measuring, and angle of repose is less to the Weight type influence comparatively speaking; As long as the reasonable measuring accuracy of mounting means can satisfy the needs on the engineering fully; How to make it become continuous kinetic measurement instrument, be the problem that the field of measurement scientific and technical personnel pay close attention to, but problem does not obtain adequate solution all the time always.
Summary of the invention
A kind of tracking mode coal bunker of the present invention apparatus for measuring charge level; Its purpose has been to overcome in the existing measurement means solid material angle of repose to bigger this drawback of influence of level gauging precision; Solve the problem that Weight type charge level measurement mechanism interval time of measurement is long, weight is buried easily, thereby disclose a kind of continuous dynamic measurement device of automatic tracking type that is mainly used in colliery, coal washery and generating plant coal bunker level gauging.
A kind of tracking mode coal bunker of the present invention apparatus for measuring charge level is characterized in that it being a kind of continuous dynamic measurement device of automatic tracking type that is mainly used in colliery, coal washery and generating plant coal bunker level gauging.Neither contact between this measurement mechanism probe and the material also not away from; Remain certain distance; Along with the changeable device of solid material material level can be followed the tracks of by automatic control probe, monitor the situation of change of material level in real time, package unit is formed (seeing accompanying drawing 2) by probe 1, kinematic train (seeing accompanying drawing 1) and measuring system three parts; Its said probe 1 is a metal circular cone hollow body; Whole metal circular cone hollow body is irritated with the epoxy resin envelope, and upper limit sensor 2 and lower limited sensor 3 are equipped with in its inside, and said upper limit sensor 2 is a kind of the reflection type infrared near optoelectronic switch of transmitter and receiver that integrate with lower limited sensor 3.When the coal bunker material level changed, upper limit sensor 2 was transferred to bin level intelligent table 11 with lower limited sensor 3 output switching value signals through cable 4.Said intelligence control system mainly is made up of code sensor 10 and bin level intelligent table 11, and bin level intelligent table 11 is according to two the switching value signal controlling kinematic trains of upper limit sensor 2 with lower limited sensor 3 outputs; Said cable 4 is the leads that connect upper limit sensor 2 and lower limited sensor 3, and its outer image spring equally is coiled to form, can freely stretch, and have high resiliency, high abrasion and high anti-tearing strength, and be that a kind of spiral concertina type shields umbilical cable; Said kinematic train is made up of wire rope 5, pulley 6, motor 7, reductor 8 and wire rope drum 9, and said wire rope 5 links into an integrated entity with probe 1, and motor 7 rotatings move up and down through reductor 8, wire rope drum 9 and wire rope 5 traction probes 1; Measuring system is made up of code sensor 10 and bin level intelligent table 11; Said code sensor 10 is a kind of rotary encoders, and the axle head that code sensor 10 is installed in wire rope drum 9 rotates with wire rope drum 9, and wire rope drum 9 rotates a circle; Code sensor 10 also rotates a circle; Send the digit pulse W of some simultaneously, deliver to bin level intelligent table 11 and carry out computing and demonstration, according to formula F=H
0/ W
0Calculate pulse equivalency, F pulse equivalency in the formula, H
0For code sensor 10 rotates the distance that a circle makes that probe 1 rises or descends, W
0By code sensor 10 rotate a circle the number of generation pulse; Deposit pulse equivalency F in bin level intelligent table 11; Bin level intelligent table 11 calculates H=FW through single-chip microcomputer, represents the material level data, and promptly bin level intelligent table 11 need obtain the pulse number that code sensor 10 sends; Just can calculate the material level data, bin level intelligent table 11 selects for use the universal intelligent table that has communication interface to communicate by letter with host computer.This coal bunker apparatus for measuring charge level range:＞75m; Measuring accuracy: ± 50mm; Signal and host computer communication distance: >=1000m.
Above-mentioned a kind of tracking mode coal bunker apparatus for measuring charge level; It is characterized in that being designed with in the described probe 1 upper limit sensor 2 and lower limited sensor 3; Upper limit sensor 2 is all set fixing reflective distance with lower limited sensor 3, and the reflective distance of upper limit sensor 2 is less than the reflective distance of lower limited sensor 3.During all less than the reflective distance set separately, probe 1 rises material apart from the distance of upper limit sensor 2 and lower limited sensor 3; During all greater than the reflective distance set separately, probe 1 descends material apart from the distance of upper limit sensor 2 and lower limited sensor 3; Material is apart from the reflective distance of upper limit sensor 2 distance greater than its setting, and during less than the reflective distance of its setting, probe 1 stops material apart from the distance of lower limited sensor 3; Material is apart from the reflective distance of upper limit sensor 2 distance less than its setting, and during greater than the reflective distance of its setting, probe 1 stops material, realizes the material level automatic tracing and measuring apart from the distance of lower limited sensor 3.
The present invention's a kind of tracking mode coal bunker apparatus for measuring charge level and its advantage of prior art comparison are:
1, realized continuous kinetic measurement.Compare with Weight type coal bunker material level monitoring system, this invention uses the probe of being made up of upper limit sensor and lower limited sensor 1 to replace weight, has realized the real-time continuous kinetic measurement of material level.
2, mechanical part duration of runs is short, failure rate is low, long service life.System compares with Weight type coal bunker level gauging, and probe does not need to move to the coal bunker surface from the coal bunker top during level gauging, has reduced the machine operation time, has reduced mechanical wear, has prolonged serviceable life.
3, can not pop one's head in and 1 buried phenomenon by solid material.Weight type coal bunker level gauging system is when each the measurement, and weight need go downwards to the coal charge surface to be stopped from the coal bunker top, and can cause coal bunker weight by coal to be buried if there is coal charge to irritate into coal bunker this moment, causes mechanical fault easily.
4, realized automatic tracing and measuring to material level.Neither away from also not contacting the coal charge surface, probe 1 growth and decline with the coal bunker material level moves up and down probe 1, has realized the automatic tracing and measuring of coal bunker material level in this contrive equipment.
Description of drawings
Fig. 1 measurement mechanism structural representation
1. 2. upper limit sensors, 3. upper limit sensors, 4. cables, 5. wire rope, 6. pulleys, 7. motors, 8. reductors, 9. wire rope drums, 10. code sensors of popping one's head in
Fig. 2 measurement mechanism measuring principle figure
11. bin level intelligent table
Specific embodiments
Embodiment 1:
1. apparatus for measuring charge level
Apparatus for measuring charge level of the present invention is formed (seeing accompanying drawing 2) by probe 1, kinematic train (seeing accompanying drawing 1) and measuring system three parts.Probe 1 is a metal circular cone hollow body, and upper limit sensor 2 and lower limited sensor 3 are equipped with in its inside, and cable 4 is the leads that connect upper limit sensor 2 and lower limited sensor 3, and the whole metal circular cone hollow body of probe 1 is irritated with the epoxy resin envelope; Upper limit sensor 2 is a kind of reflection type infrared near optoelectronic switch with lower limited sensor 3.When object to be detected during near the upper and lower limit sensor; The infrared ray of the infrared ray sensor transmitter emission of upper and lower limit sensor is returned infrared remote receiver by reflection object, and upper limit sensor 2 is transferred to bin level intelligent table 11 with lower limited sensor 3 output switching signals through cable 4; Kinematic train is made up of wire rope 5, pulley 6, motor 7, reductor 8 and wire rope drum 9, and cable 4 is coiled to form as spring, can freely stretch, and have high resiliency, high abrasion and high anti-tearing strength, is a kind of spiral concertina type shielding umbilical cable; Wire rope 5 links into an integrated entity with probe 1, and motor 7 rotatings move up and down through reductor 8, wire rope drum 9 and wire rope 5 traction probes 1; Measuring system is made up of code sensor 10 and bin level intelligent table 11; Code sensor 10 is selected rotary encoder for use; The axle head that code sensor 10 is installed in wire rope drum 9 rotates with wire rope drum 9, and wire rope drum 9 rotates a circle, and code sensor 10 also rotates a circle; Send the digit pulse W of some simultaneously, deliver to bin level intelligent table 11 and carry out computing and demonstration.
2. the installation of measurement mechanism
A whole set of new measurement is installed in the top (seeing accompanying drawing 1) of coal bunker; The particular location of probe 1 is at coal bunker diameter 1/3 place in the outer part; Be installed in this position and be in order to eliminate the influence of angle of repose to measuring accuracy, the volume that its theoretical foundation is a cone is 1/3 of a cylindrical volume, as long as measure the height here; Just can think the true altitude of level of filler material fully, measuring accuracy all not had influence no matter angle of repose is cone or conical funnel body.
3. the verification of measurement mechanism
Getting wire rope drum 9 diameters is 318mm; Wire rope drum 9 revolves and turns around, and probe 1 moves up and down the distance of 1m, chooses limit sensor 2 and detects the optoelectronic switch apart from 400mm for JCG-1335 series; Select lower limited sensor 3 to detect apart from the 500mm optoelectronic switch; a collection of selected materials sign indicating number sensor 10 is a PKT-100 series optical rotary encoder, and pulse equivalency F=H is calculated in resolution 200 pulse/commentaries on classics for JCG-1335 series
0/ W
0=1000mm/200=5mm/ pulse deposits pulse equivalency in the bin level intelligent table 11 in, as the foundation of calculating material level.After the installation, manually boot motor 7, motor 7 is just changeing the bottom that probe 1 drops to coal bunker, with the zero clearing of bin level intelligent table 11; As 0 material level start bit, manually boot motor 7, motor 7 counter-rotating probes 1 rise to the top of coal bunker; The numeral of bin level intelligent table 11 is increasing in this process, and the actual range at inspection coal bunker top and the video data of bin level intelligent table 11 have error free, remodify pulse equivalency F if any error; Repeat said process, till error free, checking procedure finishes.
4. measuring process:
With shown in the accompanying drawing 2, upper limit sensor 2 reflective distances are 400mm like accompanying drawing 1, and lower limited sensor 3 reflective distances are 500mm.During measurement, manually boot motor 7, motor 7 is just changeing the bottom that probe 1 drops to coal bunker; Make upper limit sensor 2 apart from material level greater than 400mm; Lower limited sensor 3 less than 500mm, promptly pops one's head in 1 apart between the coal bunker material level 400mm-500mm apart from the material level distance, and probe 1 does not move; With the zero clearing of bin level intelligent table 11, as 0 material level start bit.When material level rises; When making upper limit sensor 2 and the distance between lower limited sensor 3 and the solid material in the probe 1 all less than its reflective distance; Upper limit sensor 2 and lower limited sensor 3 equal output contact closure signal, 7 counter-rotatings of measurement mechanism control motor, traction probe 1 moves up.Code sensor 10 reverses together simultaneously, and the material level displayed value of bin level intelligent table 11 is increasing, and bin level intelligent table 11 is whenever received a pulse of sending from code sensor 10, and the displayed value of bin level intelligent table 11 just increases 5mm.When probe 1 rising certain distance, make the inner upper limit sensor 2 of probe 1 and lower limited sensor 3 have one during greater than its reflective distance apart from the distance of material, respective sensor is the output contact cut-off signal just, and electrode 7 stops operating.Measuring process finishes, and what the displayed value of bin level intelligent table 11 showed is exactly current material level.When material level descended, when the distance between probe 1 and the solid material exceeded the reflective distance (500mm) of lower limited sensor 3, measurement mechanism control motor 7 was just changeing, and probe 1 moves down, measuring process and above-mentioned opposite, thus realize material level is carried out tracking measurement.
Claims (2)
1. a tracking mode coal bunker apparatus for measuring charge level is characterized in that it being a kind of continuous dynamic measurement device of automatic tracking type that is mainly used in colliery, coal washery and generating plant coal bunker level gauging.Neither contact between this measurement mechanism probe and the material also not away from, remain certain distance, along with the changeable device of solid material material level automatically control pop one's head in and follow the tracks of, monitor the situation of change of material level in real time.Package unit is formed (seeing accompanying drawing 2) by probe (1), kinematic train (seeing accompanying drawing 1) and measuring system three parts; Its said probe (1) is a metal circular cone hollow body; Whole metal circular cone hollow body is irritated with the epoxy resin envelope; Upper limit sensor (2) and lower limited sensor (3) are equipped with in its inside, and said upper limit sensor (2) and lower limited sensor (3) are a kind of the reflection type infrared near optoelectronic switch of transmitter and receiver that integrate.When the coal bunker material level changed, the distance between upper limit sensor (2) and lower limited sensor (3) and the material changed, and upper limit sensor (2) and lower limited sensor (3) output switching value signal are transferred to bin level intelligent table (11) through cable (4).Bin level intelligent table (11) is according to two switching value signal controlling kinematic trains of upper limit sensor (2) and lower limited sensor (3) output; Said cable (4) is the lead that connects upper limit sensor (2) and lower limited sensor (3), and its outer image spring equally is coiled to form, can freely stretch, and have high resiliency, high abrasion and high anti-tearing strength, and be that a kind of spiral concertina type shields umbilical cable; Said kinematic train is made up of wire rope (5), pulley (6), motor (7), reductor (8) and wire rope drum (9).Said wire rope (5) links into an integrated entity with probe (1), and motor (7) rotating moves up and down through reductor (8), wire rope drum (9) and wire rope (5) traction probe (1); Said measuring system is made up of code sensor (10) and bin level intelligent table (11); Said code sensor (10) is a kind of rotary encoder, and the axle head that code sensor (10) is installed in wire rope drum (9) rotates with wire rope drum (9), and wire rope drum (9) rotates a circle; Code sensor (10) also rotates a circle; Send the digit pulse W of some simultaneously, deliver to bin level intelligent table (11) and carry out computing and demonstration, according to formula F=H
0/ W
0Calculate pulse equivalency, F is a pulse equivalency in the formula, H
0For code sensor (10) rotates the distance that a feasible probe of circle (1) rises or descends, W
0By code sensor (10) rotate a circle the number of generation pulse; Deposit pulse equivalency F in bin level intelligent table (11); Bin level intelligent table (11) calculates H=FW through single-chip microcomputer, represents the material level data, and promptly bin level intelligent table (11) only need obtain the pulse number that code sensor (10) sends; Just can calculate the material level data, bin level intelligent table (11) selects for use the universal intelligent table that has communication interface to communicate by letter with host computer.This coal bunker apparatus for measuring charge level range:＞75m; Measuring accuracy: ± 50mm; Signal and host computer communication distance: >=1000m.
2. according to the said a kind of tracking mode coal bunker apparatus for measuring charge level of claim 1; It is characterized in that being designed with in the described probe (1) upper limit sensor (2) and lower limited sensor (3); Upper limit sensor (2) and lower limited sensor (3) are all set fixing reflective distance, and the reflective distance of upper limit sensor (2) is less than the reflective distance of lower limited sensor (3).During all less than the reflective distance set separately, probe (1) rises material apart from the distance of upper limit sensor (2) and lower limited sensor (3); During all greater than separately reflective distance, probe (1) descends material apart from the distance of upper limit sensor (2) and lower limited sensor (3); Material is apart from upper limit sensor (2) the distance reflective distance greater than its setting, and during less than the reflective distance of its setting, probe (1) stops material apart from the distance of lower limited sensor (3); Material is apart from upper limit sensor (2) the distance reflective distance less than its setting, and during greater than the reflective distance of its setting, probe (1) stops material, realizes the material level automatic tracing and measuring apart from the distance of lower limited sensor (3).
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Citations (5)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| US5533392A (en) * | 1994-05-17 | 1996-07-09 | Tecnetics Industries, Inc. | System and method for sensing material level within a container |
| RU2105269C1 (en) * | 1996-01-23 | 1998-02-20 | Юрий Иванович Губарь | Device for measuring of loose material level |
| CN2293054Y (en) * | 1996-02-08 | 1998-09-30 | 中国煤炭经济学院 | Weight type intelligent charge level probe unit |
| CN2497288Y (en) * | 2001-08-06 | 2002-06-26 | 常欣 | Wall-hanging-weight type powder-position automatic checking apparatus |
| CN2648415Y (en) * | 2003-06-19 | 2004-10-13 | 梁志祥 | Inducing material level indicator |
-
2011
- 2011-07-27 CN CN 201110217718 patent/CN102313585B/en active Active
Patent Citations (5)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| US5533392A (en) * | 1994-05-17 | 1996-07-09 | Tecnetics Industries, Inc. | System and method for sensing material level within a container |
| RU2105269C1 (en) * | 1996-01-23 | 1998-02-20 | Юрий Иванович Губарь | Device for measuring of loose material level |
| CN2293054Y (en) * | 1996-02-08 | 1998-09-30 | 中国煤炭经济学院 | Weight type intelligent charge level probe unit |
| CN2497288Y (en) * | 2001-08-06 | 2002-06-26 | 常欣 | Wall-hanging-weight type powder-position automatic checking apparatus |
| CN2648415Y (en) * | 2003-06-19 | 2004-10-13 | 梁志祥 | Inducing material level indicator |
Cited By (20)
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| CN102620795A (en) * | 2012-05-22 | 2012-08-01 | 太原理工大学 | Water level and water flow velocity integral measuring device |
| CN102692260A (en) * | 2012-06-14 | 2012-09-26 | 徐州中矿奥特麦科技有限公司 | Radar type tilt switch |
| CN102692260B (en) * | 2012-06-14 | 2014-04-23 | 徐州中矿奥特麦科技有限公司 | Radar type tilt switch |
| CN102914343A (en) * | 2012-09-28 | 2013-02-06 | 中国科学院合肥物质科学研究院 | Non-contact type single-point liquid metal liquid level measurement device |
| CN102914343B (en) * | 2012-09-28 | 2014-08-27 | 中国科学院合肥物质科学研究院 | Non-contact type single-point liquid metal liquid level measurement device |
| CN103776509A (en) * | 2012-10-25 | 2014-05-07 | 昆达电脑科技(昆山)有限公司 | Liquid-level display device in automobile engine cabin |
| CN103017859B (en) * | 2012-12-06 | 2015-07-08 | 广西大学 | Contact type high-temperature metal meltwater liquid level height measuring device |
| CN103017859A (en) * | 2012-12-06 | 2013-04-03 | 广西大学 | Contact type high-temperature metal meltwater liquid level height measuring device |
| CN103644952B (en) * | 2013-12-30 | 2017-04-05 | 广东机电职业技术学院 | A kind of water level measurer for vertical-shaft inter-crystalline brine |
| CN103644952A (en) * | 2013-12-30 | 2014-03-19 | 广东机电职业技术学院 | Water level measurer for vertical-shaft inter-crystalline brine |
| CN104089677A (en) * | 2014-03-25 | 2014-10-08 | 佛山市凯沃森环保科技有限公司 | Material level meter for gasification furnace |
| CN104555339A (en) * | 2015-01-16 | 2015-04-29 | 青海省能源发展（集团）有限公司 | Automatic lifting control system of large sized coal belt conveyor |
| CN105651359A (en) * | 2016-02-02 | 2016-06-08 | 山东星志智能交通科技有限公司 | Full road condition ponding water level monitoring alarm and drainage device |
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| CN112649064A (en) * | 2020-10-13 | 2021-04-13 | 中国神华能源股份有限公司哈尔乌素露天煤矿 | Bin level detection device and system |
| CN112917783A (en) * | 2021-02-04 | 2021-06-08 | 重庆工程职业技术学院 | Production die for carbon fiber pantograph slide plate |
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