CN102226707B - Material level measuring device of material bin - Google Patents
Material level measuring device of material bin Download PDFInfo
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- CN102226707B CN102226707B CN 201110078709 CN201110078709A CN102226707B CN 102226707 B CN102226707 B CN 102226707B CN 201110078709 CN201110078709 CN 201110078709 CN 201110078709 A CN201110078709 A CN 201110078709A CN 102226707 B CN102226707 B CN 102226707B
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Abstract
The invention relates to a material level measuring device of a material bin, which belongs to the technical field of detection equipment. The material level measuring device provided by the invention is used for synchronously monitoring the material level of the material bin and has the technical scheme that the device comprises a material level measuring part, a material level measurement moving part and a measurement signal transmission and control part, wherein the material level measuring part comprises measuring cylinders, a nuclear radiation source and a ray receiver; the number of the measuring cylinders is two, and the measuring cylinders are ranked in parallel; the nuclear radiation source and the ray receiver are respectively installed in the two measuring cylinders; the measuring cylinders are placed in the material bin; the position of the nuclear radiation source corresponds to the position of the ray receiver; the nuclear radiation source and the ray receiver are respectively connected with the measurement signal transmission and control part outside the material bin through a cable; the measuring cylinders are connected with the material level measurement moving part which is installed at the upper part of the material bin; and the material level measurement moving part is connected with the measurement signal transmission and control part. The material level measuring device provided by the invention is suitable for the complicated and changeable environments in industrial production scenes, has the advantages of convenience in maintenance, low cost, high accuracy and high efficiency and is convenient to use.
Description
Technical field
The present invention relates to a kind of device that material level in the feed bin is measured, belong to the checkout equipment technical field.
Background technology
Feed bin is industrial important component part, and bin-level directly provides operating basis for commercial production.The instrument of the detection bin-level that uses at present comprises that radar levelmeter, ultrasonic material level detection unit, throw-in type weight dropper charge level indicator, capacitance material level meter etc. are multiple.But in actual production, find, owing to abominable production environment and probing medium be easy to the reason such as damage so that these conventional instruments often can't work, cause bin-level normally not monitor, thereby affected the normal operation of producing.As in actual production, Pulverized Coal Bin is the raw material storage of bf coal injection system, and the Pulverized Coal Bin material level is the important parameter that directly restricts the coal powder injection operation, and it is measured order of accuarcy and is determining that can pulverized coal preparation system normally move or according to plan maintenance.3200 meter 3 high 25m in blast-furnace coal powder storehouse of the iron-smelter of certain iron and steel enterprise, diameter 8m, coal dust is inputted on Pulverized Coal Bin top at any time, the bottom is exported coal dust at any time, sometimes to be filled with from the bottom also that nitrogen carries out back powder in case the coal dust caking, storehouse inner suspension coal dust is a lot, interface is unintelligible, since going into operation, several level-sensing devices---weight dropper charge level indicator, capacitance material level meter, ultrasonic material level detection unit, radar level gauge have successively been adopted, but these several level-sensing devices all fail to satisfy the requirement of measurement and coal powder injection operation, have affected production.Therefore design that a kind of to be suitable for industrial new apparatus for measuring charge level be very necessary.
Summary of the invention
Technical matters to be solved by this invention provides a kind ofly can adapt to complicated industrial production environment, overcome rugged surroundings impact, the brand-new material level measuring device of material bin that Reliable guarantee is provided smoothly for producing.
The technical scheme that solves the problems of the technologies described above is:
A kind of material level measuring device of material bin, it is by the level gauging part, the level gauging movable part, measuring-signal transmission and control section form, level gauging partly comprises measuring cylinder, nuclear radiation source, ray receiver, measuring cylinder is two, be arranged in parallel, nuclear radiation source and ray receiver are installed in respectively in two measuring cylinders, measuring cylinder is placed in the feed bin, the ray occurrence positions of nuclear radiation source is corresponding with the ray receiving position of ray receiver, nuclear radiation source is connected with control section with the measuring-signal transmission of feed bin outside by cable respectively with ray receiver, measuring cylinder is connected with the level gauging movable part that is installed in the feed bin top, and the level gauging movable part is connected with control section with the measuring-signal transmission.
Above-mentioned material level measuring device of material bin, described level gauging movable part is comprised of glass pulley, reducing motor, limit switch, postive stop baffle, potentiometer, the cable of nuclear radiation source and ray receiver is connected on the glass pulley, reducing motor is connected by chain with the winding wheel shaft of glass pulley, on the winding wheel shaft of glass pulley postive stop baffle is installed, postive stop baffle is between two limit switches, potentiometer is fixedly connected with the reducing motor axle, and the signal end of potentiometer is connected with control section with the measuring-signal transmission.
The number of teeth of the chain pitch wheel on the above-mentioned material level measuring device of material bin, the chain pitch wheel on the described reducing motor axle and winding displacement wheel shaft is identical, and modulus is also identical, potentiometer and reducing motor axle concentric, same revolution.
Above-mentioned material level measuring device of material bin, described measuring-signal transmission and control section are comprised of electronic converter unit, PLC controller, reversing unit, material level converting unit, display unit, the signal output part of the ray receiver of level gauging part is connected to electronic converter unit, electronic converter unit is connected with the PLC controller, the signal end of the limit switch that level gauging moves connects reversing unit, reversing unit is connected with the PLC controller, the material level converting unit is connected with display unit with potentiometer respectively, and display unit is connected with the PLC controller.
The conduction of the present invention by the reducing motor gear, control glass pulley up or move down guaranteed that nuclear radiation source surveys synchronism and the accuracy of material level; Simultaneously because potentiometer and the concentric of reducing motor, same revolution, potentiometer links to each other with the material level converting unit, and the rising of material level or decline obtain synchronous reaction, have guaranteed synchronism and the accuracy of material-height exploring.Because singularity and the measurement of species of nuclear radiation source are contactless, have avoided the impact of the abominable working environment such as high temperature, dust.This device combines automatic technology and nuclear radiation instrument first imperfectly, can be accurately and stably finish the level gauging of complicated feed bin.To enclosure-type or non-tight formula batch can, feed bin, all extensively applicable to rugged environment conditions such as high temperature, high pressure, corrosivity, toxics, the place that is particularly useful for major diameter, large heavy wall feed bin and requires to reduce environmental radiation.That the present invention has is easy to use, be easy to maintenance, high precision, high efficiency advantage, has obtained good economic benefit, is a kind of material level measuring device of material bin of special use of function admirable, has good social prospect and economic outlook.
Description of drawings
Fig. 1 is structural representation of the present invention.
Mark is as follows among the figure: measuring cylinder 1, nuclear radiation source 2, ray receiver 3, balancing weight 4, glass pulley 5, reducing motor 6, limit switch 7, postive stop baffle 8, potentiometer 9, material level converting unit 10, PLC controller 11, electronic converter unit 12, display unit 13, reversing unit 14.
Embodiment
Show among the figure that the present invention is comprised of level gauging part, level gauging movable part, measuring-signal transmission and control section.
Level gauging partly comprises measuring cylinder 1, nuclear radiation source 2, ray receiver 3.The level gauging movable part comprises glass pulley 5, reducing motor 6, limit switch 7, postive stop baffle 8, potentiometer 9.Measuring-signal transmission and control section comprise electronic converter unit 12, PLC controller 11, reversing unit 14, material level converting unit 10, display unit 13.
Show among the figure that the measuring cylinder 1 of level gauging part is two, is arranged in parallel, and vertically inserts in feed bin, if feed bin temperature height then can be put in measuring cylinder 1 feed bin outer wall place.Nuclear radiation source 2 and ray receiver 3 are placed on respectively in two measuring cylinders 1, nuclear radiation source 2 is connected by the glass pulley 5 of cable with the level gauging movable part of measuring cylinder 1 top respectively with ray receiver 3, the level gauging movable part drives nuclear radiation source 2 and ray receiver 3 moves up and down synchronously, and the material level of feed bin is measured.
Show among the figure that the level gauging movable part is comprised of glass pulley 5, reducing motor 6, limit switch 7, postive stop baffle 8, potentiometer 9.Glass pulley 5 has two, and they lay respectively at the top of two measuring cylinders 1, nuclear radiation source 2 and ray receiver 3 respectively by cable on glass pulley 5, cable one side that connects at ray receiver 3 also is connected with balancing weight 4.Reducing motor 6 is connected by chain with the winding wheel shaft of glass pulley 5, and the number of teeth of the chain pitch wheel on the chain pitch wheel on the reducing motor axle and the winding displacement wheel shaft is identical, and modulus is also identical.Postive stop baffle 8 is installed on the winding wheel shaft of glass pulley 5, and postive stop baffle 8 is between two limit switches 7, and move left and right contacts with limit switch 7 with the rotation of winding wheel shaft for postive stop baffle 8, thus the control bound.Potentiometer 9 is fixedly connected with the reducing motor axle, potentiometer 9 and reducing motor axle concentric, same revolution.
Show among the figure that measuring-signal transmission of the present invention and control section comprise electronic converter unit 12, PLC controller 11, reversing unit 14, material level converting unit 10, display unit 13.
The signal output part of ray receiver 3 is connected to electronic converter unit 12, and electronic converter unit 12 is connected with PLC controller 11, sends the signal of ray receiver 3 to PLC controller 11.The signal output part of the limit switch 7 of level gauging movable part is connected with PLC controller 11, and reversing unit 14 is connected with PLC controller 11, and the output terminal of reversing unit 14 is connected with the control end of reducing motor 6.During work, reversing unit 14 sends the instruction of PLC controller 11 to reducing motor 6, the rotating speed of control reducing motor 6.When limit switch 7 did not play position-limiting action, PLC controller 11 can be controlled reversing unit 14 moved up and down motor, can only be descending such as upper limit action motor, and can only be up such as lower limit action motor.Material level converting unit 10 is connected with PLC controller 11 with the potentiometer 9 of level gauging movable part respectively, and potentiometer 9 links to each other with material level converting unit 10, and the rising of material level or decline obtain synchronous reaction, has guaranteed synchronism and the accuracy of material-height exploring.Display unit 13 is connected with PLC controller 11, and the material level state is shown.
Claims (1)
1. material level measuring device of material bin, it is characterized in that: it is by the level gauging part, the level gauging movable part, measuring-signal transmission and control section form, level gauging partly comprises measuring cylinder (1), nuclear radiation source (2), ray receiver (3), measuring cylinder (1) is two, be arranged in parallel, nuclear radiation source (2) and ray receiver (3) are installed in respectively in two measuring cylinders (1), measuring cylinder (1) is placed in the feed bin, the ray occurrence positions of nuclear radiation source (2) is corresponding with the ray receiving position of ray receiver (3), nuclear radiation source (2) is connected with control section with the measuring-signal transmission of feed bin outside by cable respectively with ray receiver (3), measuring cylinder (1) is connected with the level gauging movable part that is installed in the feed bin top, and the level gauging movable part is connected with control section with the measuring-signal transmission; Described level gauging movable part is by glass pulley (5), reducing motor (6), limit switch (7), postive stop baffle (8), potentiometer (9) forms, the cable of nuclear radiation source (2) and ray receiver (3) is connected on the glass pulley (5), reducing motor (6) is connected by chain with the winding wheel shaft of glass pulley (5), postive stop baffle (8) is installed on the winding wheel shaft of glass pulley (5), postive stop baffle (8) is positioned between two limit switches (7), potentiometer (9) is fixedly connected with the reducing motor axle, and the signal end of potentiometer (9) is connected with control section with the measuring-signal transmission; The number of teeth of the chain pitch wheel on the chain pitch wheel on the described reducing motor axle and the winding displacement wheel shaft is identical, and modulus is also identical, and potentiometer (9) is concentric with the reducing motor axle; Described measuring-signal transmission and control section are by electronic converter unit (12), PLC controller (11), reversing unit (14), material level converting unit (10), display unit (13) forms, the signal output part of the ray receiver (3) of level gauging part is connected to electronic converter unit (12), electronic converter unit (12) is connected with PLC controller (11), the signal end of the limit switch of level gauging movable part (7) connects reversing unit (14), reversing unit (14) is connected with PLC controller (11), material level converting unit (10) is connected with display unit (13) with potentiometer (9) respectively, and display unit (13) is connected with PLC controller (11).
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN 201110078709 CN102226707B (en) | 2011-03-30 | 2011-03-30 | Material level measuring device of material bin |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN 201110078709 CN102226707B (en) | 2011-03-30 | 2011-03-30 | Material level measuring device of material bin |
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| CN102226707A CN102226707A (en) | 2011-10-26 |
| CN102226707B true CN102226707B (en) | 2013-03-27 |
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| CN 201110078709 Active CN102226707B (en) | 2011-03-30 | 2011-03-30 | Material level measuring device of material bin |
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Families Citing this family (4)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN102706416A (en) * | 2012-06-19 | 2012-10-03 | 郭云昌 | Method referring to determine switching point of switch type passive nucleon material level gage |
| CN102798440A (en) * | 2012-08-14 | 2012-11-28 | 黑龙江省中贝技术有限公司 | Continuous kernel level monitoring method and device for realizing same |
| CN106115522B (en) * | 2016-08-31 | 2018-11-23 | 中钢集团西安重机有限公司 | A kind of furnace roof stock rod hydraulic control device and method |
| CN106315438B (en) * | 2016-10-31 | 2019-01-15 | 中钢集团西安重机有限公司 | A kind of furnace roof stock rod hydraulic control device and method |
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| SU609970A1 (en) * | 1975-10-09 | 1978-06-05 | Днепропетровский Ордена Трудового Красного Знамени Горный Институт Им.Артема | Radiometric follow-up level gauge |
| US5105661A (en) * | 1989-12-28 | 1992-04-21 | Kureha Chemical Industry Company, Limited | Method of detecting a level of liquid in a moving cylindrical body |
| CN1252520A (en) * | 1998-10-23 | 2000-05-10 | 杨毅 | Tracking material level meter |
| JP2004069482A (en) * | 2002-08-06 | 2004-03-04 | Matsushita Electric Ind Co Ltd | Liquid level detection device |
| JP2005140745A (en) * | 2003-11-10 | 2005-06-02 | Ai Denshi Kogyo:Kk | Optical level sensor and liquid level detector using the same sensor |
| CN202033074U (en) * | 2011-03-30 | 2011-11-09 | 唐山钢铁集团微尔自动化有限公司 | Silo level measuring device |
-
2011
- 2011-03-30 CN CN 201110078709 patent/CN102226707B/en active Active
Patent Citations (6)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| SU609970A1 (en) * | 1975-10-09 | 1978-06-05 | Днепропетровский Ордена Трудового Красного Знамени Горный Институт Им.Артема | Radiometric follow-up level gauge |
| US5105661A (en) * | 1989-12-28 | 1992-04-21 | Kureha Chemical Industry Company, Limited | Method of detecting a level of liquid in a moving cylindrical body |
| CN1252520A (en) * | 1998-10-23 | 2000-05-10 | 杨毅 | Tracking material level meter |
| JP2004069482A (en) * | 2002-08-06 | 2004-03-04 | Matsushita Electric Ind Co Ltd | Liquid level detection device |
| JP2005140745A (en) * | 2003-11-10 | 2005-06-02 | Ai Denshi Kogyo:Kk | Optical level sensor and liquid level detector using the same sensor |
| CN202033074U (en) * | 2011-03-30 | 2011-11-09 | 唐山钢铁集团微尔自动化有限公司 | Silo level measuring device |
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