CN106990125A - A kind of multi-functional X-ray detecting system and detection method - Google Patents

A kind of multi-functional X-ray detecting system and detection method Download PDF

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Publication number
CN106990125A
CN106990125A CN201710390452.9A CN201710390452A CN106990125A CN 106990125 A CN106990125 A CN 106990125A CN 201710390452 A CN201710390452 A CN 201710390452A CN 106990125 A CN106990125 A CN 106990125A
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China
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ray
belt
linear array
functional
array detector
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CN201710390452.9A
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Chinese (zh)
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李太友
李云峰
杨州旭
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Tianjin Meiteng Technology Co Ltd
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Tianjin Meiteng Technology Co Ltd
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Priority to CN201710390452.9A priority Critical patent/CN106990125A/en
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    • GPHYSICS
    • G01MEASURING; TESTING
    • G01NINVESTIGATING OR ANALYSING MATERIALS BY DETERMINING THEIR CHEMICAL OR PHYSICAL PROPERTIES
    • G01N23/00Investigating or analysing materials by the use of wave or particle radiation, e.g. X-rays or neutrons, not covered by groups G01N3/00 – G01N17/00, G01N21/00 or G01N22/00
    • G01N23/02Investigating or analysing materials by the use of wave or particle radiation, e.g. X-rays or neutrons, not covered by groups G01N3/00 – G01N17/00, G01N21/00 or G01N22/00 by transmitting the radiation through the material
    • G01N23/06Investigating or analysing materials by the use of wave or particle radiation, e.g. X-rays or neutrons, not covered by groups G01N3/00 – G01N17/00, G01N21/00 or G01N22/00 by transmitting the radiation through the material and measuring the absorption
    • G01N23/18Investigating the presence of flaws defects or foreign matter

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  • Physics & Mathematics (AREA)
  • Health & Medical Sciences (AREA)
  • Life Sciences & Earth Sciences (AREA)
  • Chemical & Material Sciences (AREA)
  • Analytical Chemistry (AREA)
  • Biochemistry (AREA)
  • General Health & Medical Sciences (AREA)
  • General Physics & Mathematics (AREA)
  • Immunology (AREA)
  • Pathology (AREA)
  • Analysing Materials By The Use Of Radiation (AREA)

Abstract

The invention discloses a kind of multi-functional X-ray detecting system, including belt conveyer, x-ray detection device, control device and communicator, belt conveyer includes belt, belt and fixes carrying roller and homogenizing device, and homogenizing device is arranged on belt above zone face;X-ray detection device includes the x-ray source of transmitting dual-energy x-ray and receives the X-ray linear array detector of X-ray, x-ray source and X-ray linear array detector are vertically opposite, zone face is located between x-ray source and X-ray linear array detector on belt, and x-ray source staggers with homogenizing device horizontal direction;Control device includes controller, and controller receives the signal from X-ray linear array detector and external system by communicator, communicator is outputed signal to after processing.The invention also discloses a kind of multi-functional X-ray detection method, the present invention can realize the knockdown ash content of coal preparation plant, carrying out flaw detection and system control, and system architecture is compact simple, and cost is low, is easily installed and safeguards.

Description

A kind of multi-functional X-ray detecting system and detection method
Technical field
The present invention relates to a kind of x-ray detection system and detection method, more particularly to a kind of multi-functional X-ray detecting system And detection method.
Background technology
Coal is important energy source, is also the important source materials such as metallurgy, chemical industry, is described as " industrial grain ", coal typically by carbon, The noncombustible matter such as the combustibles such as hydrogen, sulphur and calcium, aluminium, silicon, iron constitute, coal at a certain temperature fully, completely burning after not The residue proportion of combustible is pit ash.The principle of coal separation is that ash content as requested adjusts various coal preparation techniques And the parameter of equipment, washing goes out the product of correspondence ash content index.Traditional coal separation ash content control method is usually artificial sample Ash content is tested, then adjusts coal separation parameter, time-consuming for this artificial detection method, it is difficult to is adjusted in real time according to coal varitation and product demand Save parameter.With the progress of scientific and technological level, online ash content detection technique gradually causes attention, since the nineties in last century, There are the research and development of the online ash content tester of gamma-rays successively, the ash content applied to Raw Coal or coal preparation product is measured, but γ is penetrated There is potential safety hazard in line, once leakage, can cause greatly harm, operation and maintenance is very inconvenient.
In addition, for belt conveyer, got stuck if there is bulk or foreign matter or belt itself operates improper be easy to and Cause belt tearing;For Steel cord belt, if wire rope core damage is not handled, it is more likely that cause belt fracture, above feelings Condition all will cause extreme influence to production safety and efficiency, it is therefore desirable to set belt carrying out flaw detection belt working order.It is existing Belt carrying out flaw detection device be to be detected by photoelectric sensor or pressure sensor mostly, it is impossible to ensure reliability, and function is more It is single.
The content of the invention
The present invention is technical problem present in solution known technology and providing one kind can detect that material component can be examined Survey the multi-functional X-ray detecting system and detection method of the degree of impairment of travelling belt.
The present invention is adopted the technical scheme that to solve technical problem present in known technology:A kind of multi-functional X Ray detection system, including belt conveyer, x-ray detection device, control device and communicator, the belt conveyer bag Include belt, belt and fix carrying roller and homogenizing device, the homogenizing device is arranged on the belt above zone face;The X-ray Detection means include transmitting dual-energy x-ray x-ray source and receive X-ray X-ray linear array detector, the x-ray source and The X-ray linear array detector is vertically opposite, and zone face is located at the x-ray source on the belt and the X-ray linear array is detected Between device, the x-ray source staggers with the homogenizing device horizontal direction;The control device includes controller, the control Device, the signal from the X-ray linear array detector and external system, output signal after processing are received by the communicator To the communicator.
Further, the homogenizing device is provided with height adjuster.
Further, the belt is Steel cord belt or nylon belt.
Further, the communicator includes wired transport module and/or wireless transport module.
The present invention also provides a kind of multi-functional X-ray detection method, penetrates the x-ray source and reception X of transmitting dual-energy x-ray The X-ray linear array detector of line is vertically opposite, zone face on the belt of belt conveyer is located at x-ray source and the spy of X-ray linear array Survey between device, x-ray source is launched height dual-energy x-ray, dual-energy x-ray is through ray attenuation after the material on belt and belt And received by X-ray linear array detector, while the ash content and belt damage to material are detected.
Further, the top of zone face sets homogenizing device on belt, makes homogenizing device high and low position adjustable, in coal stream Material on belt is shakeout in the case of floor height, drawn material in the case where coal fluid layer is low, homogenizing device is also provided vertically The pressure of zone face, material compaction is consistent or similar when making different freight volumes.
Further, set up mathematical analysis model using the relation of langbobier law ray attenuation and ash content and calculate ash Point:
K=ln (I01/N01)/ln(I02/N02)
Wherein I01The transmitted intensity of material, I are not passed through for sigmatron02The ray of material is not passed through for low energy X ray Intensity, N01The transmitted intensity after material, N are passed through for sigmatron02The transmitted intensity after material is passed through for low energy X ray;It is logical Cross setting ash content coefficient and set up the mathematical relationship of K values and material ash content, so as to calculate the ash content of material on belt.
Further, by detecting that belt breakage X-ray attenuation degree is less than other normal portions, the tear to belt Situation is detected.
The present invention has the advantages and positive effects of:Using X-ray detection technology, relative to gamma-rays working environment peace It is complete reliable, and greatly reduce the management cost of enterprise;Integrate the detection of material ash content and belt flaw detection function, realize The knockdown ash content of coal preparation plant, carrying out flaw detection and system are controlled, and the system process is simply easily realized, the compact letter of apparatus structure Easily, cost is low, is easily installed and safeguards;The present invention can also be connected with upstream and downstream apparatus control system, automation regulation sorting ginseng Number, automatic detection belt are damaged and alarmed, and are realized the safe efficient production of coal preparation plant, are that enterprise brings environmental benefit.The present invention is A kind of safe and reliable detection means, can detect material ash content and belt damage, the detection of collection material ash content and belt flaw detection work( Multifunctional assembled detection can be realized in one, can effectively reduce equipment cost, reduced number of devices, thus reduce enterprise Management cost, be that enterprise brings economic benefit.
Brief description of the drawings
Fig. 1 is the structural representation of the present invention.
In Fig. 1:1st, belt conveyer;2nd, belt fixes carrying roller;3rd, zone face on belt;4th, belt lower belt surface;5th, homocline is filled Put;6th, x-ray source;7th, X-ray linear array detector;8th, radioprotector;9th, controller;10th, control system;11st, belt is transported Defeated machine switch.
In order to further understand the content, features and effects of the present invention, hereby enumerating following examples, and coordinate accompanying drawing Describe in detail as follows:
Refer to Fig. 1, a kind of multi-functional X-ray detecting system, including belt conveyer 1, x-ray detection device, control Device and communicator, the belt conveyer 1 include belt, belt and fix carrying roller 2 and homogenizing device 5, the homogenizing device 5 The top of zone face 3 on the belt;The x-ray detection device includes the x-ray source 6 of transmitting dual-energy x-ray and receives X The X-ray linear array detector 7 of ray, the x-ray source 6 and the X-ray linear array detector 7 are vertically opposite, on the belt Zone face 3 is located between the x-ray source 6 and the X-ray linear array detector 7, the x-ray source 6 and the water of homogenizing device 5 Square to staggering;The control device includes controller 9, and the controller 9 is received by the communicator and comes from the X The communicator is outputed signal to after the signal of ray linear array detector 7 and external system, processing.
X-ray source 6 is arranged on belt above zone face or between upper lower belt surface, and the dual intensity X of transmitting two kinds of energy of height is penetrated Line;X-ray linear array detector 7 is arranged on belt between lower belt surface or on belt above zone face, relative with x-ray source 6, is received Through the X-ray after belt and material;Radioprotector 8 closes x-ray source 6 and X-ray linear array detector 7, it is ensured that inspection Survey the safety of environment;X-ray detection signal from X-ray linear array detector 7 is transferred to controller 9 by communicator, control Command signal is transmitted supreme upstream device control system by device 9 by communicator;Controller 9 uses high-speed computation unit, will The x-ray detection signal received is converted, computing, detects ash content, belt tearing damage and the Steel cord skin of material Band wire rope core degree of impairment.
Further, the homogenizing device 5 can be provided with height adjuster.Homogenizing device is arranged on belt upper surface Side, homogenizing device sets height adjuster, and regulating height position is adjustable, in the case where coal fluid layer is high by material on belt Shakeout, draw material in the case where coal fluid layer is low, homogenizing device can also provide the pressure of vertical zone face, when making different freight volumes Material compaction is consistent or similar, improves accuracy of detection;Homogenizing device 5 can use the homogenizing device of existing belt-conveying, A main support can be set in homogenizing device 5, and main support may include a square plate face and respectively positioned at four tops of the square plate face At angle, four supporting legs of the support square plate face.
Further, the belt can be Steel cord belt or nylon belt.
Further, the communicator may include wire transmission module and/or wireless transport module.Wire transmission module Optional 485 data transmission module and various fieldbus data transport modules, the optional GPRS communication modules of wireless transport module, The wireless data transfer modules such as WIFI data transmission modules.
The present invention also provides a kind of embodiment of multi-functional X-ray detection method, and specific method is to make transmitting dual-energy x-ray X-ray source 6 and receive X-ray X-ray linear array detector 7 it is vertically opposite, make zone face 3 on the belt of belt conveyer 1 Between x-ray source 6 and X-ray linear array detector 7, x-ray source 6 is set to launch height dual-energy x-ray, dual-energy x-ray passes through skin Ray attenuation and received after material on band and belt by X-ray linear array detector 7, while ash content and belt damage to material Detected.
Further, homogenizing device 5 can be set for the top of zone face 3 on belt, makes the high and low position of homogenizing device 5 adjustable, Material on belt is shakeout in the case where coal fluid layer is high, drawn material in the case where coal fluid layer is low, homogenizing device 5 is also carried For the pressure of vertical zone face, material compaction is consistent or similar when making different freight volumes.
Further, set up mathematical analysis model using the relation of langbobier law ray attenuation and ash content and calculate ash Point:
K=ln (I01/N01)/ln(I02/N02)
Wherein I01The transmitted intensity of material, I0 are not passed through for sigmatron2The ray of material is not passed through for low energy X ray Intensity, N01The transmitted intensity after material, N0 are passed through for sigmatron2The transmitted intensity after material is passed through for low energy X ray;It is logical Cross setting ash content coefficient and set up the mathematical relationship of K values and material ash content, so as to calculate the ash content of material on belt.
Further, belt can be torn by detecting that belt breakage X-ray attenuation degree is less than other normal portions The situation of splitting is detected.
The technological process of the present invention is as follows:
S1, belt conveyer are transported through to the product material after raw coal or sorting, discharging, entrucking etc.;
S2, x-ray detection device detect ash value according to the thickness and property of the material on belt conveyer;According to skin Situation of change with inventory on transporter, detects belt tearing situation;For Steel cord belt, according to X during belt zero load Ray signal situation, detects damage of Steel cord etc.;
S3, controller 9 receive output signal after the signal from x-ray detection device, processing, such as judge belt tearing or Steel cord autostop and sends alarm signal after damaging, and notifies staff to handle, moreover it is possible to output signal to according to demand External system, so as to adjust upstream equipment parameter, realizes that material ash content is adjusted on belt conveyer, regulation process is as follows:
1. x-ray detection device detects the ash content of material on adhesive tape;
2. controller 9 receives the data from x-ray detection device, by calculating analysis actual measurement ash content and target ash content Difference, result of calculation signal is fed back to the upstream equipment control system of external system;
3. upstream equipment control system automatic adjustment equipment parameter makes actual ash content meet target ash content.
The operation principle of the present invention:
Product material is transported by belt conveyer 1;Suitable position is chosen on belt conveyer 1 belt is installed Fixed carrying roller 2, belt fixes zone face 3 and belt lower belt surface 4 on the support belt of carrying roller 2, and zone face on belt 3 is fixed as into flat board Shape;When material is thicker on the homogenizing device 5 of the adjustable upper-lower position of the top of zone face 3 installation, belt on belt, material is spread out It is flat, when material is relatively thin on belt, material is drawn in, in addition, pressure vertically downward is also provided, material when making different freight volumes Compaction it is consistent or approximate;X-ray source 6 positioned at the wherein side of both sides about 3 of zone face on belt launches X-ray, thoroughly Cross energy attenuation after material, by belt zone face about 3 the X-ray linear array detector 7 of the opposite side of both sides absorb, pass through Communicator is by signal output to intelligent processor -- controller 9;Controller 9 uses high-speed computation unit, and the X received is penetrated Line signal is converted, computing, detects ash content, belt tearing damage and the Steel cord belt wire rope core degree of impairment of material, And signal instruction is sent to outside control system 10 and belt conveyer switch 11 by communicator;If detecting belt to deposit In damage, it is necessary to overhaul, Belt transport and switch 11 then close belt conveyer 1, and send alarm, notify staff;Control The real-time adjust automatically upstream equipment parameter of ash content that system 10 processed is fed back according to Ash analyser, realizes material ash content on belt conveyer Regulation.
The present invention can at least perform following detection by the reception and computing of signal after X dual intensity Radiolucent materials:
1. the transmitting of x-ray source 6 height dual-energy x-ray, through ray attenuation after material, declines according to langbobier law ray The relation subtracted with ash content sets up mathematical analysis model and calculates ash content, and K values and material ash can be set up by demarcating ash content coefficient etc. The mathematical relationship divided, so as to calculate the ash content of material on belt.
2. when belt is scratched by foreign matter or itself operates the tear such as improper, material is leaked by tearing port, on belt The concave surface that material formation is collapsed, can detect that tear place X-ray attenuation degree is less than other normal portions by x-ray detection device Position, control system realizes the tear detection of belt so as to send halt instruction and alarm.
3. for Steel cord belt, when Steel cord joint or wire rope core fracture, X-ray transparent belt absorbed energy ratio There is the reduction of wire rope core absorbed energy before fracture, thus X-ray attenuation degree is less than normal portions, therefore when belt is unloaded, The damage check to Steel cord can be realized.
Embodiment described above is merely to illustrate the technological thought and feature of the present invention, in the art its object is to make Technical staff it will be appreciated that present disclosure and implementing according to this, it is impossible to the patent model of the present invention is only limited with the present embodiment Enclose, i.e., equal change or modification that all disclosed spirit is made, still fall in the scope of the claims of the present invention.

Claims (8)

1. a kind of multi-functional X-ray detecting system, it is characterised in that including belt conveyer, x-ray detection device, control dress Put and communicator, the belt conveyer includes belt, belt and fixes carrying roller and homogenizing device, and the homogenizing device is arranged on On the belt above zone face;The x-ray detection device includes the x-ray source of transmitting dual-energy x-ray and receives the X of X-ray Ray linear array detector, the x-ray source and the X-ray linear array detector are vertically opposite, and zone face is located at institute on the belt State between x-ray source and the X-ray linear array detector, the x-ray source staggers with the homogenizing device horizontal direction;It is described Control device includes controller, and the controller is received by the communicator and comes from the X-ray linear array detector and outer The communicator is outputed signal to after the signal of portion's system, processing.
2. multi-functional X-ray detecting system according to claim 1, it is characterised in that the homogenizing device is provided with height Adjusting apparatus.
3. multi-functional X-ray detecting system according to claim 1, it is characterised in that the belt is Steel cord skin Band or nylon belt.
4. multi-functional X-ray detecting system according to claim 1, it is characterised in that the communicator includes wired Transport module and/or wireless transport module.
5. a kind of multi-functional X-ray detection method, it is characterised in that make the x-ray source of transmitting dual-energy x-ray and receive X-ray X-ray linear array detector it is vertically opposite, make on the belt of belt conveyer that zone face is located at x-ray source and X-ray linear array is detected Between device, x-ray source is launched height dual-energy x-ray, dual-energy x-ray through ray attenuation after the material on belt and belt simultaneously Received by X-ray linear array detector, while the ash content and belt damage to material are detected.
6. multi-functional X-ray detection method according to claim 5, it is characterised in that set on belt above zone face Homogenizing device is put, makes homogenizing device high and low position adjustable, is shakeout material on belt in the case where coal fluid layer is high, in coal fluid layer Material is drawn in the case of low, homogenizing device also provides the pressure of vertical zone face, material compaction one when making different freight volumes Cause or similar.
7. multi-functional X-ray detection method according to claim 5, it is characterised in that utilize langbobier law ray The relation of decay and ash content sets up mathematical analysis model and calculates ash content:
K=ln (I01/N01)/ln(I02/N02)
Wherein I01The transmitted intensity of material, I are not passed through for sigmatron02Do not pass through the transmitted intensity of material for low energy X ray, N01The transmitted intensity after material, N are passed through for sigmatron02The transmitted intensity after material is passed through for low energy X ray;Pass through setting Ash content coefficient sets up the mathematical relationship of K values and material ash content, so as to calculate the ash content of material on belt.
8. multi-functional X-ray detection method according to claim 5, it is characterised in that by detecting that belt breakage X is penetrated Line attenuation degree is less than other normal portions, and the Splitting of belt is detected.
CN201710390452.9A 2017-05-27 2017-05-27 A kind of multi-functional X-ray detecting system and detection method Pending CN106990125A (en)

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Cited By (2)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
CN109607100A (en) * 2018-12-03 2019-04-12 平顶山天安煤业股份有限公司 A kind of aramid fiber conveying belt multi-angled shooting method
CN109781750A (en) * 2019-02-11 2019-05-21 天津美腾科技有限公司 Ash content of coal detection device and detection method based on X-ray

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US20100303201A1 (en) * 2005-04-30 2010-12-02 Elisabeth Katz Method and Device for the Online Determination of the Ash Content of a Substance Conveyed on a Conveying Means, and Device for Carrying Out Such an Online Determination
CN203143599U (en) * 2013-01-05 2013-08-21 合肥海明科技开发有限责任公司 Flaw detection device for conveyor belts with steel rope cores
CN104849292A (en) * 2015-06-10 2015-08-19 长沙敏衡测控科技有限公司 Rapid coal quality analysis device
CN106040617A (en) * 2016-05-29 2016-10-26 内蒙古科技大学 Radioactive ore sorting machine
CN205673224U (en) * 2016-05-29 2016-11-09 内蒙古科技大学 Double energy X-ray transmission ore separators
CN106353828A (en) * 2015-07-22 2017-01-25 清华大学 Method and device for estimating weight of inspected object in security inspection system
CN206920361U (en) * 2017-05-27 2018-01-23 天津美腾科技有限公司 A kind of multi-functional X-ray detecting system

Patent Citations (7)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
US20100303201A1 (en) * 2005-04-30 2010-12-02 Elisabeth Katz Method and Device for the Online Determination of the Ash Content of a Substance Conveyed on a Conveying Means, and Device for Carrying Out Such an Online Determination
CN203143599U (en) * 2013-01-05 2013-08-21 合肥海明科技开发有限责任公司 Flaw detection device for conveyor belts with steel rope cores
CN104849292A (en) * 2015-06-10 2015-08-19 长沙敏衡测控科技有限公司 Rapid coal quality analysis device
CN106353828A (en) * 2015-07-22 2017-01-25 清华大学 Method and device for estimating weight of inspected object in security inspection system
CN106040617A (en) * 2016-05-29 2016-10-26 内蒙古科技大学 Radioactive ore sorting machine
CN205673224U (en) * 2016-05-29 2016-11-09 内蒙古科技大学 Double energy X-ray transmission ore separators
CN206920361U (en) * 2017-05-27 2018-01-23 天津美腾科技有限公司 A kind of multi-functional X-ray detecting system

Cited By (2)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
CN109607100A (en) * 2018-12-03 2019-04-12 平顶山天安煤业股份有限公司 A kind of aramid fiber conveying belt multi-angled shooting method
CN109781750A (en) * 2019-02-11 2019-05-21 天津美腾科技有限公司 Ash content of coal detection device and detection method based on X-ray

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Application publication date: 20170728