CN104483234A - Automatic iron ore grade detection system and method - Google Patents
Automatic iron ore grade detection system and method Download PDFInfo
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- CN104483234A CN104483234A CN201410796512.3A CN201410796512A CN104483234A CN 104483234 A CN104483234 A CN 104483234A CN 201410796512 A CN201410796512 A CN 201410796512A CN 104483234 A CN104483234 A CN 104483234A
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Abstract
The invention discloses an automatic iron ore grade detection system and an automatic iron ore grade detection method. The automatic iron ore grade detection method comprises the following steps: integrating multiple types of measuring and intelligent control equipment, automatically measuring the specific gravity of ores, establishing a relationship between the specific gravity and the grade of iron ore through experiments, inversely solving the grade of the iron ore according to the specific gravity, finally saving measured data into a databank, and automatically printing acceptance verification receipts. By adopting the automatic iron ore grade detection system and the automatic iron ore grade detection method, the volume and the weight of ores in a whole carriage can be easily and rapidly measured, the grade of the whole ores can be really and rapidly obtained, the problem that the grade of ores is artificially depleted is solved, the labor cost of sampling and testing is greatly reduced, the conclusion can be easily obtained, and the device is convenient to use.
Description
Technical field
The present invention relates to the automatic detection field of iron ore grade, in dressing Production Process, real-time automatic measuring goes out the weight of iron ore, volume and grade.
Background technology
Ore is containing valuable mineral and has the rock of extraction value, and the mineral nature aggregate in every earth's crust, under modern technologies economic level condition, can therefrom extract the necessary metal of national economy or other mineral products person with industrial scale, be called ore.
The grade of ore refers to the content of useful constituent or valuable mineral in unit volume or unit weight ore, generally represents with percentage by weight, and mineral products grade weighs the leading indicator of mineral deposit economic worth.The percentage composition of contained useful component (element or compound) in ore or product.
The ore of the exploitation of iron ore enterprise and purchase, the height of its grade and authenticity directly affect benefit and the beneficiation cost of enterprise.Traditional ore is checked and accepted and is normally weighed before ore dressing, then obtains the grade of ore by hand sampling chemical examination, in this, as clearing foundation.Due to randomness and the human factor impact of hand sampling, the grade of got sample is made to be difficult to reflect truly the grade of whole joint compartment ore, the workload of hand sampling is simultaneously large, and the grade of ore need sample presentation chemically examine after just can obtain, indirectly extend the exploitation working time, bring inconvenience, although there is small-sized product level detecting apparatus, but it is little that it detects ore amount, cannot estimate large stretch of ore, add the grade of ore testing time of field personnel, and cannot store in time detection data, be not easy to analysis and summary, use inconvenience.
Summary of the invention
In order to solve problem above, the object of the present invention is to provide a kind of iron ore grade automatic checkout system and method, the integrated multiple measurement of the present invention and intelligent control device, automatically the proportion of ore is measured, set up the relation between iron ore proportion and iron ore grade by experiment, then according to proportion reverse iron ore grade, finally by measurement data stored in database and automatic printing checks and accepts visa document.
The object of the present invention is achieved like this:
A kind of iron ore automatic gauge Acceptance Test System, is characterized in that: comprise the RFID card reader being arranged on measured zone porch, red green pilot lamp, inlet photoelectric switch and entrance reflecting plate; In measured zone, dynamic railway truck scale is installed, above measured zone, measured zone outlet boundary is provided with and direction of scanning and the vertical direction two dimensional laser scanning instrument of race orthogonal and the parallel direction two dimensional laser scanning instrument of direction of scanning and parallel track, is arranged on the IP Camera of measured zone, exports optoelectronic switch and export reflecting plate; Described inlet photoelectric switch and entrance reflecting plate are respectively in the both sides of track, and the electric signal of RFID card reader, red green pilot lamp, inlet photoelectric switch, vertical direction two dimensional laser scanning instrument, parallel direction two dimensional laser scanning instrument, IP Camera and outlet optoelectronic switch inputs or outputs end and is connected with the signal port of computing machine after signal processor processes or directly.。
Described the electronic tag that can be read information by RFID card reader is installed in side, motor car, described electronic tag be written with before sending out ore deposit ore deposit ore locations, ore kind, send out ore deposit unit information.
A kind of iron ore grade automatic testing method, above-mentioned a kind of iron ore grade automatic checkout system, is characterized in that, measures operation steps as follows:
A) carry out mine locomotive and enter measured zone, trigger the entrance photoelectric sensor switch of measured zone porch, rfid interrogator starts the electronic tag read in locomotive, and after successfully reading information, red green pilot lamp becomes green from redness, permission locomotive passes through, otherwise waits for that electronic tag completes reading;
B) carry out mine locomotive to weigh when the dynamic railway truck scale by measured zone, and the weight in each joint compartment is sent to terminal, be fixed on directly over track and be parallel to orbital direction with the two dimensional laser scanning instrument of two perpendicular to orbital direction with identical frequency sweeping compartment, obtain a pair scanning section of many group synchronizations respectively, be be parallel to the section in motor sport direction and the section perpendicular to direction of motion respectively, and data are sent to terminal;
C) at the exit track export installation outlet photoelectric sensor switch of measured zone, by judging whether compartment completes measurement to laser circumstance of occlusion, complete measurement and then export optoelectronic switch connection, state is for opening, otherwise laser is blocked by compartment, state is for closing, and when completing measurement, terminal control IP Camera is taken pictures;
D) proportion-grade relation curve is set up by experiment for different ore locations, carry out mine car by measuring the weight and volume of ore after measured zone, thus calculate the proportion of ore, the relation curve corresponding according to the ore locations information inquiry carrying out mine car, the proportion substituting into ore calculates the grade of ore;
E) data adopting data management system reception and each hardware device of process iron ore grade automatic checkout system to gather, combine composite traces stored in database the continuous data coming ore deposit information and ore, and print examination visa list.
The laser emission frequency of described two dimensional laser scanning instrument is 36kHz, and scanning a section only needs 20ms, can think that locomotive is when by measured zone, can obtain a cross-sectional line and a vertical section line every 20ms simultaneously.Along the distance of the distance of direction of traffic translation namely between these two adjacent moment transversal section between two adjacent moment vertical section lines.
Described data processing is the ore deposit heap two-dimensional scan section line of the both direction that described two kinds of two dimensional laser scanning instrument obtain, and is calculated the volume of ore deposit heap in locomotive 13 by the Integral Processing of computing machine to two-dimensional scan section line.
The method for building up of described proportion-grade relation curve is:
The compartment choosing ore fragmentation, humidity representative carries out ore volume, weight measurement, calculates the mean specific gravity of whole joint compartment ore; Carry out fragmentation to whole joint compartment ore, sampling shovel carries out uninterrupted grab sample; Dichotomy is adopted to carry out division to the weight of defined to sample after completing broken sampling; Chemical examination is carried out to the sample after division and obtains Fe grade, form an experimental data with the mean specific gravity in this joint compartment; Collection 40 experimental datas are had altogether in different proportion distribution ranges with reference to aforementioned process.Experimental data being opened up with proportion is X-axis, and Fe grade is in the coordinate system of Y-axis, can obtain proportion-Fe grade scatter diagram; Adopt least-squares linear regression to carry out piecewise linear regression to the loose point of these proportion-Fe grade, the piecewise linear function of Fe grade about proportion can be obtained.
The laser emission frequency of described two dimensional laser scanning instrument is 36kHz, and scanning a section only needs 20ms, can think that locomotive is when by measured zone, can obtain a cross-sectional line and a vertical section line every 20ms simultaneously.Along the distance of the distance of direction of traffic translation namely between these two adjacent moment transversal section between two adjacent moment vertical section lines.Therefore do not need locomotive to carry out uniform motion, its movement velocity only needs the requirement meeting dynamic railway truck scale, greatly reduces the inconvenience of operation like this, without the need to transport mine locomotive carry out uniform motion also can by computing machine integral operation ore removal heap volume.
Described locomotive is used to deliver the dolly of ore, can be comprise wheel, dolly that compartment, drive unit can move under the control of the controller, also can be the railway carriage of band wheel, be driven by headstock.Controller on locomotive also can use wireless telecommunications by cable data cable.
Described computing machine can Long-distance Control and process data, also can pass through wireless communication mode by wire cable with the connection of each equipment.The RFID card reader that can control computing machine reads electronic information on locomotive, control the opening and closing of inlet photoelectric switch and outlet optoelectronic switch thus control the startup of vertical direction two dimensional laser scanning instrument and parallel direction two dimensional laser scanning instrument and closedown, the shooting of net control camera or dynamic railway truck scale of taking pictures, obtain measurement data and printer can be controlled print.Operating personnel also can be manipulated system by man-machine interface and can obtain real time data, to arrange next step production work.
The present invention compared with prior art, there is following apparent outstanding substantive distinguishing features and remarkable technical progress: the invention provides a kind of iron ore grade automatic checkout system and method, the integrated multiple measurement of the present invention and intelligent control device, automatically the proportion of ore is measured, set up the relation between iron ore proportion and iron ore grade by experiment, then according to proportion reverse iron ore grade, finally by measurement data stored in database and automatic printing checks and accepts visa document.The volume and weight of ore in acquisition compartment that can be simple and quick, and the grade that can obtain car load ore truly, fast, cost of labor is saved greatly, can shorten recovery time, is convenient to sum up, easy to use.
Accompanying drawing explanation
A kind of iron ore grade automatic checkout system of Fig. 1 the present invention and method equipment scheme of installation;
In a kind of iron ore grade automatic checkout system of Fig. 2 the present invention and method, direction of scanning is perpendicular to the vertical direction two dimensional laser scanning instrument scanning situation schematic diagram of orbital direction;
In a kind of iron ore grade automatic checkout system of Fig. 3 the present invention and method, direction of scanning is parallel to the parallel direction two dimensional laser scanning instrument scanning situation schematic diagram of orbital direction
At t in a kind of iron ore grade automatic checkout system of Fig. 4 the present invention and method
imoment and t
i+1the cross-sectional line in moment;
A kind of iron ore grade automatic checkout system of Fig. 5 the present invention and method are at t
imoment and t
i+1the vertical section line in moment;
A kind of iron ore grade automatic checkout system of Fig. 6 the present invention and method are at certain moment mineral surface cross-sectional line;
A kind of iron ore grade automatic checkout system of Fig. 7 the present invention and method are at certain moment compartment cross-sectional line;
A kind of iron ore grade automatic checkout system of Fig. 8 the present invention and method are in the transversal section of certain moment ore;
A kind of iron ore grade automatic checkout system of Fig. 9 the present invention and method moment integration xsect;
A kind of iron ore grade automatic checkout system of Figure 10 the present invention and method moment integration xsect infinitesimal;
The cross section body of two adjacent moment section constitutions described in a kind of iron ore grade automatic checkout system of Figure 11 the present invention and method;
Proportion-grade scatter diagram described in a kind of iron ore grade automatic checkout system of Figure 12 the present invention and method.
In figure: the red green pilot lamp of 1-RFID card reader, 2-, 3-inlet photoelectric switch, 4-export optoelectronic switch, 5-entrance reflecting plate, 6-exports reflecting plate, 7-IP Camera, 8-dynamic railway truck scale, 9-parallel direction two dimensional laser scanning instrument, 10-vertical direction two dimensional laser scanning instrument, 11-computing machine, 12-track, 13-locomotive
Embodiment
Below in conjunction with embodiment, the present invention is further detailed.
A kind of iron ore grade automatic checkout system, is characterized in that: comprise the RFID card reader 1 being arranged on measured zone porch, red green pilot lamp 2, inlet photoelectric switch 3 and entrance reflecting plate 5; In measured zone, dynamic railway truck scale 8 is installed, above measured zone, measured zone outlet boundary is provided with the vertical direction two dimensional laser scanning instrument 10 of direction of scanning and race orthogonal and the parallel direction two dimensional laser scanning instrument 9 of direction of scanning and parallel track, is arranged on the IP Camera 7 of measured zone, outlet optoelectronic switch 4 and outlet reflecting plate 6; Described inlet photoelectric switch 3 and entrance reflecting plate 5 are respectively in the both sides of track 12, and the electric signal of RFID card reader 1, red green pilot lamp 2, inlet photoelectric switch 3, vertical direction two dimensional laser scanning instrument 10, parallel direction two dimensional laser scanning instrument 9, IP Camera 7 and outlet optoelectronic switch 4 inputs or outputs end and is connected with the signal port of computing machine 11 after signal processor processes or directly.。
Described the electronic tag that can be read information by RFID card reader 1 is installed in side, locomotive 13 compartment, described electronic tag be written with before sending out ore deposit ore deposit ore locations, ore kind, send out ore deposit unit information.
A kind of iron ore grade automatic testing method, adopts above-mentioned a kind of iron ore grade automatic checkout system, it is characterized in that, measures operation steps as follows:
A) carry out mine locomotive and enter measured zone, trigger the entrance photoelectric sensor switch 3 of measured zone porch, rfid interrogator 1 starts to read the electronic tag in locomotive 13, after success reading information, red green pilot lamp 2 becomes green from redness, allow locomotive 13 to pass through, otherwise wait for that electronic tag completes reading;
B) carry out mine locomotive 13 to weigh when the dynamic railway truck scale 8 by measured zone, and the weight in each joint compartment is sent to computing machine 11 terminal, be fixed on directly over track 12 and be parallel to orbital direction with the two dimensional laser scanning instrument of two perpendicular to orbital direction with identical frequency sweeping compartment, obtain a pair scanning section of many group synchronizations respectively, be be parallel to the section of locomotive 13 direction of motion and the section perpendicular to direction of motion respectively, and data be sent to computing machine 11 terminal;
C) at the exit track export installation outlet photoelectric sensor switch 4 of measured zone, by judging whether compartment completes measurement to laser circumstance of occlusion, complete measurement then to export optoelectronic switch 4 and connect, state is for opening, otherwise laser is blocked by compartment, state is for closing, and when completing measurement, terminal control IP Camera 7 is taken pictures;
D) proportion-grade relation curve is set up by experiment for different ore locations, carry out mine car by measuring the weight and volume of ore after measured zone, thus calculate the proportion of ore, the relation curve corresponding according to the ore locations information inquiry carrying out mine car, the proportion substituting into ore calculates the grade of ore;
E) data adopting data management system reception and each hardware device of process iron ore grade automatic checkout system to gather, combine composite traces stored in database the continuous data coming ore deposit information and ore, and print examination visa list.
The laser emission frequency of described two dimensional laser scanning instrument is 36kHz, and scanning a section only needs 20ms, can think that locomotive is when by measured zone, can obtain a cross-sectional line and a vertical section line every 20ms simultaneously.Along the distance of the distance of direction of traffic translation namely between these two adjacent moment transversal section between two adjacent moment vertical section lines.
Described data processing is the ore deposit heap two-dimensional scan section line of the both direction that described two kinds of two dimensional laser scanning instrument obtain, and is calculated the volume of ore deposit heap in locomotive 13 by the Integral Processing of computing machine to two-dimensional scan section line.
The method for building up of described proportion-grade relation curve is:
The compartment choosing ore fragmentation, humidity representative carries out ore volume, weight measurement, calculates the mean specific gravity of whole joint compartment ore; Carry out fragmentation to whole joint compartment ore, sampling shovel carries out uninterrupted grab sample; Dichotomy is adopted to carry out division to the weight of defined to sample after completing broken sampling; Chemical examination is carried out to the sample after division and obtains Fe grade, form an experimental data with the mean specific gravity in this joint compartment; Collection 40 experimental datas are had altogether in different proportion distribution ranges with reference to aforementioned process.Experimental data being opened up with proportion is X-axis, and Fe grade is in the coordinate system of Y-axis, can obtain proportion-Fe grade scatter diagram; Adopt least-squares linear regression to carry out piecewise linear regression to the loose point of these proportion-Fe grade, the piecewise linear function of Fe grade about proportion can be obtained.
Concrete, carry out mine locomotive 13 and arrive measured zone porch, vehicle body blocks the laser that inlet photoelectric switch 3 is launched, the state of inlet photoelectric switch 3 becomes 1 from 0, signal is sent to computing machine 11 after being converted to digital signal by the network relay be attached thereto, computing machine 11 start RFID card reader 1 search and read store in release carry out ore deposit information, comprise ore locations, ore kind, Fa Kuang unit etc., successfully read after control terminal control pilot lamp 2 become green.Database initialize record of acceptance, in the record of ore deposit information write in the future.
Locomotive 13 is when by dynamic railway truck scale 8, dynamic railway truck scale 8 measures the heavy signal of axle of vehicle, utilize metering circuit, sensor transmissions is come signal amplify, and through A/D converting unit will amplify electric signal sampling, the digital signal after sampling converts the wheel load of vehicle to through signal processing system, all wheel loads in each joint compartment are added the weight that can obtain current compartment, specification due to mine car is consistent, and the curb weight of mine car is known, and the weight of ore is:
M
ore=M
loaded vehicle-M
empty wagons
In formula: M
orebe the weight of ore in a joint compartment, M
loaded vehiclebe the weight after a joint compartment loads ore, M
empty wagonsbe the weight of a joint compartment empty wagons.
Mine car is when entering measured zone, the two dimensional laser scanning instrument that two excitation-emission frequencies are consistent starts respectively along being parallel to track and perpendicular to the scanning of track both direction, as shown in Figure 2,3 perpendicular to orbital direction two dimensional laser scanning instrument and be parallel to the two dimensional laser scanning instrument scanning result of orbital direction.
The laser emission frequency of two dimensional laser scanning instrument is 36kHz, and scanning a section only needs 20ms, can think that mine car is when by measured zone, can obtain a cross-sectional line ST every 20ms simultaneously
tiwith a vertical section line SV
ti.Along the distance of the distance of direction of traffic translation namely between these two adjacent moment transversal section between two adjacent moment vertical section lines.A1, b1 are respectively t as shown in Figure 4,5
ithe transversal section in moment and vertical section; A2, b2 are respectively t
i+1the transversal section in moment and vertical section.Because sweep frequency is very high, the shape of the vertical section line of two adjacent moment is consistent substantially, SV
tirelative to SV
ti+1just there is a displacement D at direction of traffic
ti, can by most Proximal point iterative algorithm (ICP) by SV
ti+1with SV
timate, thus obtain D
ti.
Most Proximal point iterative algorithm step:
1) by SV
ti+1as target point set P{P
i, i=1,2 ..}, SV
tias reference point set Q{Q
i, i=1,2 ..};
2) point set is got in target point set
3) calculating is tried to achieve with reference to corresponding point set in point set Q
make
4) rotation matrix R is calculated
kwith translation vector T
k, make
5) calculate
6) calculate
7) if d
k+1be not less than given τ and then turn back to 3), until d
k+1till < τ or iterations are greater than default maximum iterations.
SV can be obtained according to the translation vector sum that each iteration is tried to achieve
ti+1to SV
titranslation vector T
ti, so D
tibe translation vector T
tiat the component of direction of traffic.
Because mine car specification is consistent, be illustrated in figure 6 mineral surface cross-sectional line, Figure 7 shows that compartment cross-sectional line, Figure 8 shows that the transversal section of ore, the cross-sectional line in empty wagons railway carriage or compartment is known, so can obtain the transversal section of ore in mine car.
Cross sectional area S can be tried to achieve by formula below:
Wherein △ S as shown in Figure 9
ibe i-th point on section line, the unit dimension that the i-th+1 point and bottom surface, compartment are formed, Figure 10 is unit dimension.
△ S
ican be tried to achieve by formula below:
△S
i＝(y
i+1-y
i)((x
i-h)+(x
i+1-h))/2
Wherein x
i, y
ip on cross-sectional line
ithe coordinate of point, x
i+1, y
i+1p on cross-sectional line
i+1the coordinate of point, h is the height on known distance ground, bottom surface, compartment.
Adjacent moment t
i~ t
i+1two transversal section can form a cross-section body, its volume △ V
tican be tried to achieve by the method for section:
△V
ti＝D
ti(S
ti+S
ti+1)/2
Wherein S
ti, S
ti+1be respectively t
i, t
i+1moment cross sectional area, D
tifor the distance between these two transversal section, as shown in figure 11 the cross section body of two adjacent moment section constitutions.
The cumulative volume of this joint compartment ore is
Mine car is in the exit procedure passing through measured zone, the laser that the photoswitc being arranged on exit is launched becomes connection from blocking, optoelectronic switch state becomes 0 from 1, signal is sent to control terminal after being converted to digital signal by the network relay be attached thereto, and control terminal controls camera and takes pictures.
First set up proportion-grade relation curve by previous experiments, specific practice is as follows:
1) compartment choosing ore fragmentation, humidity representative carries out ore volume, weight measurement, calculates the mean specific gravity of whole joint compartment ore;
2) carry out fragmentation to whole joint compartment ore, sampling shovel carries out uninterrupted grab sample;
3) dichotomy is adopted to carry out division to the weight (being no less than 200g) of defined to sample after completing broken sampling;
4) chemical examination is carried out to the sample after division and obtain Fe grade, form an experimental data with the mean specific gravity in this joint compartment;
5) with reference to 1)-4) process have collection 40 experimental datas altogether in different proportion distribution ranges.
6) opening up experimental data with proportion is X-axis, and Fe grade is in the coordinate system of Y-axis, can obtain proportion-Fe grade scatter diagram;
7) adopt least-squares linear regression to carry out piecewise linear regression to the loose point of these proportion-Fe grade, the piecewise linear function of Fe grade about proportion can be obtained; .
The basic thought of least square piecewise linear regression utilizes least square method to carry out sectional straight line fitting to one group of ordered pair, makes its error sum of squares minimum.Suppose that the function of function f (1, s, e) is to one group of ordered pair (x
s, y
s), (x
s+1, y
s+1), Λ, (x
c, y
c) carry out the least square fitting of straight line, obtain a fitting a straight line y=a
11* x+b
11, function e (1, s, e) is corresponding error sum of squares; F (k, s, e) is similarly the least square fitting of this ordered pair being carried out to k bar straight line, obtains k bar fitting a straight line y=a
k1* x+b
k1, y=a
k2* x+b
k2... y=a
kk* x+b
kk, e (k, s, e) is the error sum of squares of corresponding k bar straight line.Its computation process can be tried to achieve by recurrence, and step is as follows:
1) by ordered pair (x
s, y
s), (x
s+1, y
s+1), Λ, (x
c, y
c) be divided into two groups
(x
s, y
s), (x
s+1, y
s+1), Λ, (x
i, y
i) and (x
i+1, y
i+1), (x
i+2, y
i+2), Λ, (x
c, y
c);
Wherein i=s+1, s+2, Λ, e-2;
2) obtain e (1, s, i) and e (k, i+1, e) respectively, calculate
t(i)＝e(1,s,e)+e(k-1,i+1,e)；
3) the minimum value t (min) of t (i) is obtained, so e (k, s, e)=t (min);
4) detailed process calculating f (k, s, e) is:
A) call function f (1, s, min) obtains Article 1 best-fitting straight line
y＝a
k1*x+b
k1；
B) call function f (k-1, min+1, e) obtains k-1 bar best-fitting straight line
Y=a
kj* x+b
kj, wherein j=2,3, Λ, k.
The experimental data of certain ore deposit point ore proportion-grade is as follows:
If Figure 12 is proportion-grade scatter diagram.
Piecewise function after piecewise linear regression is:
As proportion x < 2.1, grade y=10.36*x-6.686
As proportion 2.1≤x < 2.4, grade y=40.52*x-67.029
As proportion x > 2.4, grade y=17.89*x-9.778
Mine car can measure the weight M of ore by measured zone
orewith volume V
ore.The proportion ω of ore can be calculated by following formula:
ω=M
ore/ V
ore
The grade that iron ore proportion-grade relation function can calculate ore is obtained according to experiment above.
When permutation mine car is all by measured zone, measurement data is organized the current record of acceptance of write, and then stored in database, control terminal sends print command to printer and prints current receipt simultaneously.
The present invention compared with prior art, there is following apparent outstanding substantive distinguishing features and remarkable technical progress: the invention provides a kind of iron ore grade automatic checkout system and method, the integrated multiple measurement of the present invention and intelligent control device, automatically the proportion of ore is measured, set up the relation between iron ore proportion and iron ore grade by experiment, then according to proportion reverse iron ore grade, finally by measurement data stored in database and automatic printing checks and accepts visa document.The volume and weight of ore in acquisition compartment that can be simple and quick, and the grade that can obtain car load ore truly, fast, solve the artificial depletion issues of the grade of ore, greatly saved the cost of labor of sampling chemical examination, is convenient to sum up, easy to use.
The foregoing is only the detailed description of specific embodiment of the invention scheme, do not limit the present invention with this, all do in mentality of designing of the present invention any amendment, equivalent to replace and improvement etc., all should be included within protection scope of the present invention.
Claims (6)
1. an iron ore grade automatic checkout system, is characterized in that: comprise the RFID card reader (1), red green pilot lamp (2), inlet photoelectric switch (3) and the entrance reflecting plate (5) that are arranged on measured zone porch; In measured zone, dynamic railway truck scale (8) is installed, above measured zone measured zone outlet boundary be provided with direction of scanning and race orthogonal vertical direction two dimensional laser scanning instrument (10 and the parallel direction two dimensional laser scanning instrument (9) of direction of scanning and parallel track, be arranged on the IP Camera (7) of measured zone, export optoelectronic switch (4) and export reflecting plate (6); Described inlet photoelectric switch (3) and entrance reflecting plate (5) respectively in the both sides of track (12), RFID card reader (1), red green pilot lamp (2), inlet photoelectric switch (3), vertical direction two dimensional laser scanning instrument (10), parallel direction two dimensional laser scanning instrument (9), IP Camera (7) and outlet optoelectronic switch (4) electric signal input or output end be connected with the signal port of computing machine (11) after signal processor processes or directly.
2. a kind of iron ore grade automatic checkout system according to claim 1, it is characterized in that: be provided with the electronic tag that can be read information by RFID card reader (1) in locomotive (13) side, compartment, described electronic tag is written with ore locations, ore kind, an ore deposit unit information in ore deposit before sending out ore deposit.
3. an iron ore grade automatic testing method, adopts a kind of iron ore grade automatic checkout system according to claim 1, it is characterized in that, measures operation steps as follows:
A) carry out mine locomotive and enter measured zone, trigger the entrance photoelectric sensor switch (3) of measured zone porch, rfid interrogator (1) starts to read the electronic tag in locomotive (13), after success reading information, red green pilot lamp (2) becomes green from redness, allow locomotive (13) to pass through, otherwise wait for that electronic tag completes reading;
B) carry out mine locomotive (13) to weigh when dynamic railway truck scale (8) by measured zone, and the weight in each joint compartment is sent to computing machine (11) terminal, be fixed on directly over track (12) and be parallel to orbital direction with the two dimensional laser scanning instrument of two perpendicular to orbital direction with identical frequency sweeping compartment, obtain a pair scanning section of many group synchronizations respectively, be be parallel to the section of locomotive (13) direction of motion and the section perpendicular to direction of motion respectively, and data be sent to computing machine (11) terminal;
C) in exit track export installation outlet photoelectric sensor switch (4) of measured zone, by judging whether compartment completes measurement to laser circumstance of occlusion, complete measurement and then export optoelectronic switch (4) connection, state is for opening, otherwise laser is blocked by compartment, state is for closing, and when completing measurement, terminal control IP Camera (7) is taken pictures;
D) proportion-grade relation curve is set up by experiment for different ore locations, carry out mine car by measuring the weight and volume of ore after measured zone, thus calculate the proportion of ore, the relation curve corresponding according to the ore locations information inquiry carrying out mine car, the proportion substituting into ore calculates the grade of ore;
E) data adopting data management system reception and each hardware device of process iron ore grade automatic checkout system to gather, combine composite traces stored in database the continuous data coming ore deposit information and ore, and print examination visa list.
4. a kind of iron ore grade automatic testing method according to claim 3, it is characterized in that: the laser emission frequency of described two dimensional laser scanning instrument is 36kHz, scan a section and only need 20ms, can think that locomotive is when by measured zone, a cross-sectional line and a vertical section line can be obtained every 20ms simultaneously.Along the distance of the distance of direction of traffic translation namely between these two adjacent moment transversal section between two adjacent moment vertical section lines.
5. a kind of iron ore grade automatic testing method according to claim 3, it is characterized in that: described data processing is the ore deposit heap two-dimensional scan section line of the both direction that described two kinds of two dimensional laser scanning instrument obtain, and is calculated the volume of locomotive (13) interior ore deposit heap by the Integral Processing of computing machine to two-dimensional scan section line.
6. a kind of iron ore grade automatic testing method according to claim 3, is characterized in that: the method for building up of described proportion-grade relation curve is:
The compartment choosing ore fragmentation, humidity representative carries out ore volume, weight measurement, calculates the mean specific gravity of whole joint compartment ore; Carry out fragmentation to whole joint compartment ore, sampling shovel carries out uninterrupted grab sample; Dichotomy is adopted to carry out division to the weight of defined to sample after completing broken sampling; Chemical examination is carried out to the sample after division and obtains Fe grade, form an experimental data with the mean specific gravity in this joint compartment; Collection 40 experimental datas are had altogether in different proportion distribution ranges with reference to aforementioned process.Experimental data being opened up with proportion is X-axis, and Fe grade is in the coordinate system of Y-axis, can obtain proportion-Fe grade scatter diagram; Adopt least-squares linear regression to carry out piecewise linear regression to the loose point of these proportion-Fe grade, the piecewise linear function of Fe grade about proportion can be obtained.
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Cited By (11)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
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| CN105717132A (en) * | 2016-03-14 | 2016-06-29 | 上海大学 | Embedded part detection system and method for PC member production line |
| CN106351683A (en) * | 2016-08-09 | 2017-01-25 | 鞍钢集团矿业有限公司 | Automatic draw-shaft dust reducing device based on underground extracted ore grade and control method thereof |
| CN106645296A (en) * | 2016-12-27 | 2017-05-10 | 华北理工大学 | Iron ore grade measurement method and system |
| CN107631955A (en) * | 2017-09-07 | 2018-01-26 | 北京矿冶研究总院 | Method for estimating iron grade in strip-shaped magnet quartzite iron ore by using true density |
| CN107999273A (en) * | 2017-11-28 | 2018-05-08 | 甘肃酒钢集团宏兴钢铁股份有限公司 | A kind of hardly possible that aoxidizes selects the pre-selection of iron iron ore rationally to throw the method that waste product position determines |
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| CN108931458A (en) * | 2018-03-12 | 2018-12-04 | 四川广安发电有限责任公司 | It is a kind of come coal quality amount detection systems and method |
| CN113340770A (en) * | 2021-04-26 | 2021-09-03 | 安徽金日晟矿业有限责任公司 | Device and method for detecting grade of magnetite and specularite mixed iron concentrate |
| CN113723841A (en) * | 2021-09-03 | 2021-11-30 | 安徽大学绿色产业创新研究院 | Online detection method for tool missing in assembly type prefabricated part |
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| CN105547914A (en) * | 2015-12-31 | 2016-05-04 | 天津市瑞英泰科技发展有限公司 | Train coal density measurement system |
| CN105717132A (en) * | 2016-03-14 | 2016-06-29 | 上海大学 | Embedded part detection system and method for PC member production line |
| CN106351683B (en) * | 2016-08-09 | 2019-03-29 | 鞍钢集团矿业有限公司 | Drop shaft automatic dustfall device and its control method based on underground extracted ore grade |
| CN106351683A (en) * | 2016-08-09 | 2017-01-25 | 鞍钢集团矿业有限公司 | Automatic draw-shaft dust reducing device based on underground extracted ore grade and control method thereof |
| CN106645296A (en) * | 2016-12-27 | 2017-05-10 | 华北理工大学 | Iron ore grade measurement method and system |
| CN107631955A (en) * | 2017-09-07 | 2018-01-26 | 北京矿冶研究总院 | Method for estimating iron grade in strip-shaped magnet quartzite iron ore by using true density |
| CN107999273A (en) * | 2017-11-28 | 2018-05-08 | 甘肃酒钢集团宏兴钢铁股份有限公司 | A kind of hardly possible that aoxidizes selects the pre-selection of iron iron ore rationally to throw the method that waste product position determines |
| CN108196013A (en) * | 2017-12-25 | 2018-06-22 | 安徽省东乾食品有限公司 | A kind of dehydrated vegetables moisture detecting method |
| CN108180947A (en) * | 2018-02-01 | 2018-06-19 | 内蒙古达智能源科技有限公司 | A kind of integrated evaluating method of irregular scattered stack movement materials quality |
| CN108180947B (en) * | 2018-02-01 | 2020-04-10 | 陈晓东 | Comprehensive evaluation method for quality of irregular bulk motion material |
| CN108931458A (en) * | 2018-03-12 | 2018-12-04 | 四川广安发电有限责任公司 | It is a kind of come coal quality amount detection systems and method |
| CN113340770A (en) * | 2021-04-26 | 2021-09-03 | 安徽金日晟矿业有限责任公司 | Device and method for detecting grade of magnetite and specularite mixed iron concentrate |
| CN113723841A (en) * | 2021-09-03 | 2021-11-30 | 安徽大学绿色产业创新研究院 | Online detection method for tool missing in assembly type prefabricated part |
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