CN202033074U - Silo level measuring device - Google Patents

Silo level measuring device Download PDF

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Publication number
CN202033074U
CN202033074U CN2011200893361U CN201120089336U CN202033074U CN 202033074 U CN202033074 U CN 202033074U CN 2011200893361 U CN2011200893361 U CN 2011200893361U CN 201120089336 U CN201120089336 U CN 201120089336U CN 202033074 U CN202033074 U CN 202033074U
Authority
CN
China
Prior art keywords
level
measuring
radiation source
ray receiver
nuclear radiation
Prior art date
Legal status (The legal status is an assumption and is not a legal conclusion. Google has not performed a legal analysis and makes no representation as to the accuracy of the status listed.)
Expired - Lifetime
Application number
CN2011200893361U
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Chinese (zh)
Inventor
万海龙
顿长勇
张静娟
周姗姗
孙明军
秦久莲
Current Assignee (The listed assignees may be inaccurate. Google has not performed a legal analysis and makes no representation or warranty as to the accuracy of the list.)
Wei'er Automation Co Ltd Of Tangshan Iron And Steel Group
Original Assignee
Wei'er Automation Co Ltd Of Tangshan Iron And Steel Group
Priority date (The priority date is an assumption and is not a legal conclusion. Google has not performed a legal analysis and makes no representation as to the accuracy of the date listed.)
Filing date
Publication date
Application filed by Wei'er Automation Co Ltd Of Tangshan Iron And Steel Group filed Critical Wei'er Automation Co Ltd Of Tangshan Iron And Steel Group
Priority to CN2011200893361U priority Critical patent/CN202033074U/en
Application granted granted Critical
Publication of CN202033074U publication Critical patent/CN202033074U/en
Anticipated expiration legal-status Critical
Expired - Lifetime legal-status Critical Current

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Abstract

The utility model relates to a silo level measuring device, which belongs to the technical field of a detection device and is used for synchronously monitoring a level of a silo. In the technical scheme, the silo level measuring device comprises a level measuring part, a level measuring and moving part and a measurement signal transmission and control part, the level measuring part comprises two measuring tubes, a nuclear radiation source and a ray receiver, the two measuring tubes are arranged in parallel, the nuclear radiation source and the ray receiver are respectively arranged in the two measuring tubes, the measuring tubes are arranged in the silo, the position of the nuclear radiation source corresponds to the position of the ray receiver, the nuclear radiation source and the ray receiver are connected with the measurement signal transmission and control part outside the silo respectively through a cable, the measuring tubes are connected with the level measuring and moving part arranged on the upper part of the silo, and the level measuring and moving part is connected with the measurement signal transmission and control part. The device is suitable for complex environments on the industrial production site. The utility model has the advantages that the device is convenient to use and maintain and has a low cost, high accuracy and high efficiency.

Description

A kind of bin-level measurement mechanism
Technical field
The utility model relates to a kind of device that material level in the feed bin is measured, and belongs 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 comprises that radar levelmeter, ultrasonic material level detection unit, throw-in type weight dropper charge level indicator, capacitance material level meter etc. are multiple at present.But in actual production, find, owing to abominable production environment and probing medium be easy to reason such as damage, make that these conventional instruments often can't operate as normal, cause bin-level normally not monitor, thereby influenced 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 can it measure order of accuarcy and determining pulverized coal preparation system normally move or maintenance according to plan.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 imported on Pulverized Coal Bin top at any time, the bottom is exported coal dust at any time, sometimes to charge into also that nitrogen carries out back powder from the bottom 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 influenced production.Therefore design that a kind of to be suitable for industrial new apparatus for measuring charge level be very necessary.
The utility model content
Technical problem to be solved in the utility model provides a kind ofly can adapt to complicated industrial production environment, overcome rugged surroundings influence, the brand-new bin-level measurement mechanism that reliable assurance is provided smoothly for producing.
The technical scheme that solves the problems of the technologies described above is:
A kind of bin-level measurement mechanism, it is by the level gauging part, the level gauging movable part, measuring-signal transmission and control section are formed, level gauging partly comprises measures tube, nuclear radiation source, ray receiver, measuring tube is two, be arranged in parallel, nuclear radiation source and ray receiver are installed in two respectively and measure in the tube, measuring tube 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, measure tube and be connected with the level gauging movable part that is installed in the feed bin top, the level gauging movable part is connected with control section with the measuring-signal transmission.
Above-mentioned bin-level measurement mechanism, described level gauging movable part is made up 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 fixedlyed 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 bin-level measurement mechanism, 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 bin-level measurement mechanism, described measuring-signal transmission and control section are made up 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 utility model by the reducing motor gear, control glass pulley up or move down guaranteed that nuclear radiation source surveys the synchronism and the accuracy of material level; Simultaneously because the 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 the synchronism and the accuracy of material-height exploring.Because the singularity and the measurement of species of nuclear radiation source are contactless, have avoided the influence of bad working environment such as high temperature, dust.This device combines automatic technology and nuclear radiation instrument first completely, can be accurately and stably finish the level gauging of complicated feed bin.To enclosure-type or non-tight formula batch can, feed bin, harsh environmental conditions such as high temperature, high pressure, corrosivity, toxic all extensively are suitable for the place that is particularly useful for major diameter, big heavy wall feed bin and requires to reduce environmental radiation.The utlity model has easy to use, be easy to maintenance, high precision, high efficiency advantage, obtained good economic benefit, be a kind of bin-level measurement mechanism of special use of function admirable, have good social prospect and economic outlook.
Description of drawings
Fig. 1 is a structural representation of the present utility model.
Mark is as follows among the figure: measure tube 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 utility model is made up of level gauging part, level gauging movable part, measuring-signal transmission and control section.
Level gauging partly comprises measures tube 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.
Feed bin temperature height shows among the figure that the measurement tube 1 of level gauging part is two, is arranged in parallel, vertically inserts in feed bin, if then can be put in feed bin outer wall place with measuring tube 1.Nuclear radiation source 2 and ray receiver 3 are placed on two respectively and measure in the tube 1, nuclear radiation source 2 is connected by the glass pulley 5 of cable with the level gauging movable part of measuring tube 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 made up 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 two tops of measuring tube 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 fixedlyed 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 utility model 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 may command reversing units 14 moved motor up and down, can only be descending as upper limit action motor, and can only be up 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 the 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 (4)

1. bin-level measurement mechanism, it is characterized in that: it is by the level gauging part, the level gauging movable part, measuring-signal transmission and control section are formed, level gauging partly comprises measures tube [1], nuclear radiation source [2], ray receiver [3], measuring tube [1] is two, be arranged in parallel, nuclear radiation source [2] and ray receiver [3] are installed in two respectively and measure in the tube [1], measuring tube [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], measure tube [1] and be connected with the level gauging movable part that is installed in the feed bin top, the level gauging movable part is connected with control section with the measuring-signal transmission.
2. bin-level measurement mechanism according to claim 1, it is characterized in that: described level gauging movable part is by glass pulley [5], reducing motor [6], limit switch [7], postive stop baffle [8], potentiometer [9] is formed, 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 fixedlyed connected with the reducing motor axle, and the signal end of potentiometer [9] is connected with control section with the measuring-signal transmission.
3. bin-level measurement mechanism according to claim 2 is characterized in that: 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.
4. bin-level measurement mechanism according to claim 3, it is characterized in that: 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] is formed, 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].
CN2011200893361U 2011-03-30 2011-03-30 Silo level measuring device Expired - Lifetime CN202033074U (en)

Priority Applications (1)

Application Number Priority Date Filing Date Title
CN2011200893361U CN202033074U (en) 2011-03-30 2011-03-30 Silo level measuring device

Applications Claiming Priority (1)

Application Number Priority Date Filing Date Title
CN2011200893361U CN202033074U (en) 2011-03-30 2011-03-30 Silo level measuring device

Publications (1)

Publication Number Publication Date
CN202033074U true CN202033074U (en) 2011-11-09

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Family Applications (1)

Application Number Title Priority Date Filing Date
CN2011200893361U Expired - Lifetime CN202033074U (en) 2011-03-30 2011-03-30 Silo level measuring device

Country Status (1)

Country Link
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Cited By (2)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
CN102226707A (en) * 2011-03-30 2011-10-26 唐山钢铁集团微尔自动化有限公司 Material level measuring device of material bin
WO2013189125A1 (en) * 2012-06-19 2013-12-27 Guo Yunchang Method related to determining switching point of a switch-type passive nucleonic level gauge

Cited By (3)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
CN102226707A (en) * 2011-03-30 2011-10-26 唐山钢铁集团微尔自动化有限公司 Material level measuring device of material bin
CN102226707B (en) * 2011-03-30 2013-03-27 唐山钢铁集团微尔自动化有限公司 Material level measuring device of material bin
WO2013189125A1 (en) * 2012-06-19 2013-12-27 Guo Yunchang Method related to determining switching point of a switch-type passive nucleonic level gauge

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C14 Grant of patent or utility model
GR01 Patent grant
AV01 Patent right actively abandoned

Granted publication date: 20111109

Effective date of abandoning: 20130327

RGAV Abandon patent right to avoid regrant