CN1056072A - Coal and stone sorting machine - Google Patents
Coal and stone sorting machine Download PDFInfo
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- CN1056072A CN1056072A CN 90105455 CN90105455A CN1056072A CN 1056072 A CN1056072 A CN 1056072A CN 90105455 CN90105455 CN 90105455 CN 90105455 A CN90105455 A CN 90105455A CN 1056072 A CN1056072 A CN 1056072A
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- coal
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- ray
- stone
- conveyer belt
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Abstract
A kind of ray transmission method coal and stone sorting machine of using in the colliery of being suitable for.It carries by between radiographic source and the probe coal charge by the coal charge connecting gear, probe converts the signal that receives to the signal of telecommunication, being input to the classifying instrument of material identificating device amplifies, postpone and the power amplifier electronic switching circuit, the air valve that goes again to control sorting executing agency opens and closes, get rid of spoil in good time, optimize ature of coal.The unit day output be 2 tons to more than the kiloton, discharge refuse stone rate height, can sorting the spoil of lumpiness at different levels, it is few, interference-free to have a power consumption, stable performance, characteristics such as the life-span is long, and cost is low can be used in automatic coal separation on the Coal Production line effectively.
Description
The present invention is a kind of ray transmission method coal and stone sorting machine that the automatic coal separation in colliery is used that is suitable for.
As far back as early sixties, the Si Laite of the state-run agriculture project of Britain Scotland institute and Palmer two people, according to the electromagnetic radiation attenuation theory, the x-ray that adopts the X-ray pipe to send is developed a kind of X ray sorting unit of getting rid of stone and soil block from potato.Afterwards, Britain D, E, Charles Jenkins had been delivered " X ray coal picker ".Also be to utilize the difference of X ray attenuation degree in coal and stone drystone that the X-ray pipe sends to come minute coal separation and spoil, but all under the industrialness working condition, do not use, simultaneously because these devices adopt the radiographic source of doing of X-ray pipe, it is huge to exist the photoelectric instrument part-structure, power consumption is big, poor anti jamming capability, the high and X-ray pipe of cost such as are not grown service life at problem, finally are not put to commercial Application.For many years domestic, once the someone manufactured experimently this class X ray coal separation device, also was to give up midway, did not see successfully.
The objective of the invention is: at the existing problem of the radiogenic material sorting device of aforementioned X-ray pipe, according to the nuclear radiation attenuation theory, ray is transmission difference principle in different material, propose to adopt radio isotope to make radiographic source, system has been ground a kind of radioactive transmission-ing material identificating fraction selector, and uses this instrument to design successfully a kind of ray transmission method coal and stone sorting machine, these facility have volume little, power consumption is few, and is interference-free, the characteristics that sorting index is high.
Ray transmission method coal and stone sorting machine of the present invention is by the radio isotope radiographic source, radioactive transmission-ing material identificating fraction selector, the coal charge connecting gear, sorting executing agency four parts constitute, the coal charge connecting gear is a conveying coal charge mechanism that is driven cylinder (14) and conveyer belt (5) by motor (7), radio isotope radiographic source (1) is placed in below the conveyer belt (5), nuclear radiation probe (2) is placed in above the conveyer belt (5), aim at the position of radiographic source (1), its received signal is through the fast identifying circuit of classifying instrument of material identificating (8), delay circuit, power discharging electronic control switch is exported a signal of telecommunication.Sorting executing agency has a source of the gas (9) and connects air valve (11) by tracheae (10), controls the switching of air valve (11) by the output signal of telecommunication of identification sorter, thereby gangue sorting is rejected.
Its half-life of radio isotope radiographic source (1) is more than 2 years or 2 years, so that more than hundreds of years, has 10KeV above particular energy and the above gamma ray source strength of 5 millicuries, and ray type is the r ray, X ray and β ray.Also can further adopt varying strength, the mixing source of energy proportioning just can obtain corresponding to granularities at different levels or the required best identified separating effect of lumpiness material, to develop various material separators.
After beam sees through coal or spoil decay, receive by probe (2), and convert the signal of telecommunication to, through output one material identification signal behind the fast identifying circuit of forming by linear amplifier (15) and reference voltage comparator with adjustable (16), the delayed circuit of this signal (17), the adjustable delay scope of this circuit is 0.05 second to 2 seconds, postpone certain hour, deliver to power discharging electronic control switch to connect the air valve (11) of sorting executing agency, power amplifier Electronic Control operating frequency is 2 times/second to 50 times/second.But this sorter single channel formula, but also multi-channel type.
Channel separating device (13) is housed on the conveyer belt of coal charge connecting gear (5), and separating device lattice number equates that with port number the linear velocity of conveyer belt is 0.5～5 meter per second, and the width of conveyer belt is determined by port number.Available pulley decelerates between motor and the cylinder, also available reductor slows down.
Sorting executing agency is by source of the gas (9), tracheae (10), air valve (11) is formed, the signal of telecommunication control air valve of identification sorter output, when spoil by the time air valve open, compressed air blows out and spoil is rejected through air valve.The power of air valve be 10 watts～more than 200 watts, frequency is 2 times/second to 50 times/second.
This coal and stone sorting machine can be designed to single channel or multi-channel type, its port number can be determined according to the day output in colliery, unit day sorting amount can be fit to the needs of each big small-size coal mine, can be by 2 tons to more than the kiloton, this machine sorting capability is strong, the coal and the spoil of energy sorting lumpiness at different levels more than 10～100 millimeters, rate of discharging refuse can reach more than 70%.
Below in conjunction with accompanying drawing the present invention is described in further detail:
Fig. 1 is the grading principle method schematic diagram of coal and stone sorting machine
Fig. 2 is the relation curve of material attenuation coefficient ratio μ (spoil)/μ (coal) and ray energy
Fig. 3 is the attenuation curves of various energy-rays when seeing through different-thickness coal and spoil
Fig. 4 is coal and spoil retaining bundle signal waveform intention
Fig. 5 is the configuration diagram of coal and stone sorting machine
Fig. 6 is the functional-block diagram of classifying instrument of material identificating
(1) radio isotope radiographic source (10) tracheae among the figure
(2) nuclear radiation probe (11) air valve
(3) coal charge (12) receiver
(4) grading oscillating screen (13) separation frame
(5) conveyer belt (14) cylinder
(6) reductor or belt (15) linear amplifier
(7) motor (16) comparator
(8) classifying instrument of material identificating (17) delay circuit
(9) source of the gas (18) power discharging electronic control switch
With reference to Fig. 1, its principle method is as follows: sent and incided on the material to be identified through the beam of collimation by radio isotope radiographic source (1), received the ray beam intensity of transmission by nuclear radiation probe (2).According to nuclear radiation attenuation theory in material, when the transmitted intensity of incident is that then transmitted intensity will decay to I when institute's glove material thickness is T in the I beam
TAnd transmit, its relational expression is as follows
I
T＝I
oe
-μT（1）
(1) μ is the attenuation coefficient of material in the formula, and its value depends on the chemical composition of ray energy and material.Obviously, if under same energy-ray irradiation, two kinds of material thicknesses are identical, the big person of μ, intensity in transmission I
TLittle; And the little person of μ, intensity in transmission I
TGreatly.
Make the attenuation coefficient of coal and spoil be respectively μ
1And μ
2, thickness is respectively T
1And T
2, the transmitted intensity of incident is T
0, the transmitted intensity of transmission is respectively I
1And I
2, then:
Work as I
1=I
2The time, μ
1T
1=μ
2T
2
Then: (T
1)/(T
2)=(μ
2)/(μ
1) (4)
Know by (4) formula, if the ray energy of selecting for use makes μ
1/ μ
2Value more greater than 1 or more less than 1, make I
1=I
2Pairing T
1/ T
2Value also more greater than 1 or more less than 1, also good more to the identification separating effect of material.But then, for guaranteeing to discern the reliability of sorting, also must make I
1Or I
2Enough intensity is arranged, enough signal to noise ratios are just arranged and reduce the statistical error of radioactivity due to opening.Attenuation curve when this compromise consideration can see through different-thickness coal and spoil with the various energy-rays that are shown in Fig. 3 according to the relation curve of the attenuation coefficient ratio μ (spoil) that is shown in Fig. 2/μ (coal) and ray energy is so that select the ray and the source strength of appropriate energy.
Fig. 4 is coal and spoil retaining bundle signal waveform schematic diagram, when no coal and spoil, output is in high level, during coal cinder retaining bundle, the ability that penetrates coal owing to ray is strong, is output as negative pulse by a small margin, during spoil retaining bundle, be output as significantly negative pulse, selecting amplitude by the trigger of adjustable discrimination or comparator is the spoil identification signal greater than the negative pulse of certain value, with the sorting spoil.
With reference to Fig. 5, coal and the classified vibratory sieve of spoil compound (4) are filtered into certain lumpiness, input is input to coal charge on the conveyer belt (5) of connecting gear, 1～1.5 meter of conveyer belt (5) width, the channel separating device made from metal material or engineering plastics is housed on it, divide 16 passages, motor (7) drive cylinder (14) after reductor (6) slows down rotates and makes its belt speed is 1～2 meter per second, radiation isotope radiographic source (1) places below the conveyer belt (5), aim at the radiographic source position above it 16 probes (2) are installed, it links to each other with sorter (8), 16 received signals are input to identification sorter (8), each signal in fast identifying circuit linear amplifier (15) and reference voltage comparator with adjustable (16) after output one material identification signal, the delayed circuit delay of this signal is after 0.05～2 second, deliver to power discharging electronic control switch (18) again, the air valve of this gauge tap control sorting executing agency, when spoil occurring on a certain passage, the air valve (11) that is installed on this passage is opened, blowing out pressurised air is rejected spoil, reach the purpose of sorting, coal and spoil fall into respectively in the receiver (12).All settle air valve on each passage.To realize the purpose of automatic coal separation
This coal and stone sorting machine is owing to adopt radio isotope to make radiographic source, life-span is long, need not power supply in the use, cancel bulky X-ray machine, whole sorter volume is greatly reduced, be not subjected to electromagnetic interference, equipment anti-interference ability is strong, stable performance, power consumption is few, and its power consumption only is X-ray pipe radiogenic 1/50～1/100.This separator production efficiency height, simple in structure, easy to maintenance, unit day sorting amount be 2 tons to more than the kiloton, can be fit to the needs of each big small-size coal mine, discharge refuse stone rate is up to more than 70%, spoil that can sorting lumpiness at different levels more than 10～100 millimeters.Can be used in coal separation automatically on the Coal Production line effectively, to upgrade.This separator is also applicable to the sorting of unclassified stores.
Claims (10)
1, a kind ofly is suitable for the ray transmission method coal and stone sorting machine that the automatic coal separation in colliery is used, it is characterized in that it is by radio isotope radiographic source (1), radioactive transmission-ing material identificating fraction selector (8) coal charge connecting gear, sorting executing agency four parts constitute, and the coal charge connecting gear is a conveying coal charge mechanism that is driven cylinder (14) and conveyer belt (5) by motor (7); Radio isotope radiographic source (1) is placed in below the conveyer belt (5), settle nuclear radiation probe (2) over against radiographic source (1) on conveyer belt (5), its received signal is through the fast identifying circuit of classifying instrument of material identificating (8), delay circuit, power discharging electronic control switch is exported a signal of telecommunication; Sorting executing agency has a source of the gas (9) and connects air valve (11) by tracheae (10), controls the switching of air valve (11) by the output signal of telecommunication of identification sorter, thereby gangue sorting is rejected.
2, coal and stone sorting machine according to claim 1, the half-life that it is characterized in that radio isotope radiation source (1) is more than 2 years or 2 years, so that more than hundreds of years, have 10KeV above particular energy and the above source strength of 5 millicuries, ray type is the r ray, x ray and β ray or employing varying strength, the mixing source of energy proportioning.
3, coal and stone sorting machine according to claim 1, the material fast identifying circuit that it is characterized in that classifying instrument of material identificating is made up of linear amplifier (15) and reference voltage comparator with adjustable (16), and its delay circuit adjustable delay scope is 0.05 second to 2 seconds.
4, coal and stone sorting machine according to claim 1, the operating frequency that it is characterized in that the power discharging electronic control switch of classifying instrument of material identificating are 2 times/second to 50 times/second.
5, coal and stone sorting machine according to claim 1 is characterized in that channel separating device (13) is housed on the conveyer belt (5), and tool lattice number equates with port number.Available metal material or engineering plastics are made.
6, separator according to claim 1, the linear velocity that it is characterized in that conveyer belt (5) is 0.5～5 meter per second.
7, separator according to claim 1, the power that it is characterized in that air valve (11) be 10 watts～more than 200 watts, frequency is 2 times/second～50 times/second.
8, separator according to claim 1, it is characterized in that unit day sorting amount be 2 tons to more than the kiloton.
9, separator according to claim 1 is characterized in that the coal and the spoil of this function sorting lumpiness at different levels more than 10～100 millimeters.
10, separator according to claim 1, but it is characterized in that this machine single channel formula or multi-channel type.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN 90105455 CN1056072A (en) | 1990-04-30 | 1990-04-30 | Coal and stone sorting machine |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN 90105455 CN1056072A (en) | 1990-04-30 | 1990-04-30 | Coal and stone sorting machine |
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| Publication Number | Publication Date |
|---|---|
| CN1056072A true CN1056072A (en) | 1991-11-13 |
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ID=4879272
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN 90105455 Pending CN1056072A (en) | 1990-04-30 | 1990-04-30 | Coal and stone sorting machine |
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|---|---|
| CN (1) | CN1056072A (en) |
Cited By (17)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN101452280B (en) * | 2009-01-12 | 2011-06-08 | 唐山陆凯科技有限公司 | Material bed density on-line observing and controlling apparatus and method in dry cleaning system |
| CN102744219A (en) * | 2012-03-23 | 2012-10-24 | 内蒙古科技大学 | Method for enriching niobium by using characteristic X ray |
| CN102781595A (en) * | 2009-11-24 | 2012-11-14 | 戈达·文卡塔·拉玛那 | Device for sorting contaminants from minerals, and method thereof |
| CN102958621A (en) * | 2010-11-19 | 2013-03-06 | 布雷维斯特尼克研究与生产公司 | Method for separating minerals according to the luminescent properties thereof |
| CN102971089A (en) * | 2010-11-19 | 2013-03-13 | 布雷维斯特尼克研究与生产公司 | Method for separating minerals with the aid of X-ray luminescence |
| WO2013060095A1 (en) * | 2011-10-27 | 2013-05-02 | 山东博润工业技术股份有限公司 | Process and system for dry coal preparation by coal gangue removal |
| CN103399024A (en) * | 2013-07-23 | 2013-11-20 | 中国矿业大学 | Experiment table for automatically identifying coal-gangue mixing degree |
| CN103769370A (en) * | 2014-01-27 | 2014-05-07 | 罗旭 | Water-free anti-explosion raw coal sorting machine |
| CN103962317A (en) * | 2010-02-25 | 2014-08-06 | 矿物分离技术股份有限公司 | Methods for sorting materials |
| CN104772292A (en) * | 2015-04-27 | 2015-07-15 | 湖州剑力金属制品有限公司 | Automatic sieving and blanking device |
| CN105478373A (en) * | 2016-01-28 | 2016-04-13 | 北矿机电科技有限责任公司 | Ore intelligent sorting control system based on ray transmission recognition |
| CN105499154A (en) * | 2016-01-05 | 2016-04-20 | 天津美腾科技有限公司 | Telligent dry separator (TDS) |
| CN105537145A (en) * | 2016-01-05 | 2016-05-04 | 天津美腾科技有限公司 | Intelligent lump coal dry method inverted separation system |
| CN105935664A (en) * | 2016-06-22 | 2016-09-14 | 天津美腾科技有限公司 | Dual-channel TDS (Telligent Dry Separator) |
| CN106423902A (en) * | 2015-08-05 | 2017-02-22 | 江苏爱福特科技开发有限公司 | Coal separator for refining coal |
| CN109909182A (en) * | 2019-03-16 | 2019-06-21 | 安徽理工大学 | One kind is Internet-based to select mining photoelectric to sort integrated device |
| CN111495788A (en) * | 2020-04-27 | 2020-08-07 | 紫金矿业集团股份有限公司 | Method for intelligently and preferentially selecting copper-blue-containing copper sulfide ore by X-ray |
-
1990
- 1990-04-30 CN CN 90105455 patent/CN1056072A/en active Pending
Cited By (22)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN101452280B (en) * | 2009-01-12 | 2011-06-08 | 唐山陆凯科技有限公司 | Material bed density on-line observing and controlling apparatus and method in dry cleaning system |
| CN102781595A (en) * | 2009-11-24 | 2012-11-14 | 戈达·文卡塔·拉玛那 | Device for sorting contaminants from minerals, and method thereof |
| CN103962317B (en) * | 2010-02-25 | 2016-05-25 | 矿物分离技术股份有限公司 | Material sorting method |
| CN103962317A (en) * | 2010-02-25 | 2014-08-06 | 矿物分离技术股份有限公司 | Methods for sorting materials |
| CN102971089B (en) * | 2010-11-19 | 2014-03-26 | 布雷维斯特尼克研究与生产公司 | Method for separating minerals with the aid of X-ray luminescence |
| CN102958621A (en) * | 2010-11-19 | 2013-03-06 | 布雷维斯特尼克研究与生产公司 | Method for separating minerals according to the luminescent properties thereof |
| CN102971089A (en) * | 2010-11-19 | 2013-03-13 | 布雷维斯特尼克研究与生产公司 | Method for separating minerals with the aid of X-ray luminescence |
| WO2013060095A1 (en) * | 2011-10-27 | 2013-05-02 | 山东博润工业技术股份有限公司 | Process and system for dry coal preparation by coal gangue removal |
| CN102744219A (en) * | 2012-03-23 | 2012-10-24 | 内蒙古科技大学 | Method for enriching niobium by using characteristic X ray |
| CN103399024A (en) * | 2013-07-23 | 2013-11-20 | 中国矿业大学 | Experiment table for automatically identifying coal-gangue mixing degree |
| CN103399024B (en) * | 2013-07-23 | 2015-04-08 | 中国矿业大学 | Experiment table for automatically identifying coal-gangue mixing degree |
| CN103769370A (en) * | 2014-01-27 | 2014-05-07 | 罗旭 | Water-free anti-explosion raw coal sorting machine |
| CN104772292A (en) * | 2015-04-27 | 2015-07-15 | 湖州剑力金属制品有限公司 | Automatic sieving and blanking device |
| CN104772292B (en) * | 2015-04-27 | 2018-01-23 | 湖州剑力金属制品有限公司 | Automatic screening blanking device |
| CN106423902A (en) * | 2015-08-05 | 2017-02-22 | 江苏爱福特科技开发有限公司 | Coal separator for refining coal |
| CN105537145A (en) * | 2016-01-05 | 2016-05-04 | 天津美腾科技有限公司 | Intelligent lump coal dry method inverted separation system |
| CN105499154A (en) * | 2016-01-05 | 2016-04-20 | 天津美腾科技有限公司 | Telligent dry separator (TDS) |
| CN105478373A (en) * | 2016-01-28 | 2016-04-13 | 北矿机电科技有限责任公司 | Ore intelligent sorting control system based on ray transmission recognition |
| CN105935664A (en) * | 2016-06-22 | 2016-09-14 | 天津美腾科技有限公司 | Dual-channel TDS (Telligent Dry Separator) |
| CN109909182A (en) * | 2019-03-16 | 2019-06-21 | 安徽理工大学 | One kind is Internet-based to select mining photoelectric to sort integrated device |
| CN109909182B (en) * | 2019-03-16 | 2020-10-27 | 安徽理工大学 | Integrative device is selected separately with photoelectricity to ore dressing based on internet |
| CN111495788A (en) * | 2020-04-27 | 2020-08-07 | 紫金矿业集团股份有限公司 | Method for intelligently and preferentially selecting copper-blue-containing copper sulfide ore by X-ray |
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