CN111948117B - Simulation test device for visually monitoring migration of bulk mineral rock - Google Patents
Simulation test device for visually monitoring migration of bulk mineral rock Download PDFInfo
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- CN111948117B CN111948117B CN202010686348.6A CN202010686348A CN111948117B CN 111948117 B CN111948117 B CN 111948117B CN 202010686348 A CN202010686348 A CN 202010686348A CN 111948117 B CN111948117 B CN 111948117B
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- 238000012360 testing method Methods 0.000 title claims abstract description 32
- 238000004088 simulation Methods 0.000 title claims abstract description 24
- 230000005012 migration Effects 0.000 title claims abstract description 21
- 238000013508 migration Methods 0.000 title claims abstract description 21
- 238000012544 monitoring process Methods 0.000 title claims abstract description 17
- 229910052500 inorganic mineral Inorganic materials 0.000 title claims description 16
- 239000011707 mineral Substances 0.000 title claims description 16
- 239000002245 particle Substances 0.000 claims abstract description 62
- 238000005192 partition Methods 0.000 claims abstract description 35
- 238000000034 method Methods 0.000 claims abstract description 24
- 230000008569 process Effects 0.000 claims abstract description 19
- 238000006073 displacement reaction Methods 0.000 claims abstract description 9
- 239000012780 transparent material Substances 0.000 claims abstract description 4
- 230000000007 visual effect Effects 0.000 claims description 8
- 239000000463 material Substances 0.000 claims description 7
- 229920000915 polyvinyl chloride Polymers 0.000 claims description 4
- 239000004800 polyvinyl chloride Substances 0.000 claims description 4
- 239000005341 toughened glass Substances 0.000 claims description 3
- 239000000126 substance Substances 0.000 claims description 2
- 230000008859 change Effects 0.000 abstract description 5
- 230000007547 defect Effects 0.000 abstract description 4
- 238000011160 research Methods 0.000 description 7
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- 238000010790 dilution Methods 0.000 description 3
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- 230000008901 benefit Effects 0.000 description 2
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- 238000005065 mining Methods 0.000 description 1
- 239000007921 spray Substances 0.000 description 1
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- G01N—INVESTIGATING OR ANALYSING MATERIALS BY DETERMINING THEIR CHEMICAL OR PHYSICAL PROPERTIES
- G01N15/00—Investigating characteristics of particles; Investigating permeability, pore-volume, or surface-area of porous materials
- G01N15/10—Investigating individual particles
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- G—PHYSICS
- G01—MEASURING; TESTING
- G01N—INVESTIGATING OR ANALYSING MATERIALS BY DETERMINING THEIR CHEMICAL OR PHYSICAL PROPERTIES
- G01N15/00—Investigating characteristics of particles; Investigating permeability, pore-volume, or surface-area of porous materials
- G01N15/10—Investigating individual particles
- G01N15/14—Electro-optical investigation, e.g. flow cytometers
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- G01N2015/1022—
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- G—PHYSICS
- G01—MEASURING; TESTING
- G01N—INVESTIGATING OR ANALYSING MATERIALS BY DETERMINING THEIR CHEMICAL OR PHYSICAL PROPERTIES
- G01N15/00—Investigating characteristics of particles; Investigating permeability, pore-volume, or surface-area of porous materials
- G01N15/10—Investigating individual particles
- G01N15/14—Electro-optical investigation, e.g. flow cytometers
- G01N2015/1493—Particle size
- G01N2015/1495—Deformation of particles
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Abstract
The invention discloses a simulation test device for visually monitoring the migration of bulk ore rocks, which comprises a model box, a balancing weight and image recognition equipment, wherein the model box is provided with a plurality of groups of independent supporting frames; the model box comprises a base and a box body with an opening at the top, the box body comprises a first side plate, a second side plate, a third side plate and a fourth side plate, the first side plate is made of transparent materials, and the bottom of the first side plate is provided with an ore outlet; a partition board is detachably arranged in the box body, and a preset interval is kept between the partition board and the first side plate; the counterweight block is arranged at the opening at the top of the box body so as to apply pressure with preset magnitude to the ore rock particles filled in the box body and simulate ore drawing tests under different pressures; the image recognition device is arranged in front of the first side plate and used for monitoring migration and change of ore particles in the ore drawing process. The invention can observe the displacement, speed, stress, deformation and rupture conditions of the discrete ore particles in the ore drawing process in real time, thereby overcoming the defect that the traditional ore drawing test device can not observe visually and continuously in real time.
Description
Technical Field
The invention relates to the technical field of analysis of migration evolution mechanism of bulk ore in mineral engineering, in particular to a simulation test device for visually monitoring the migration of the bulk ore.
Background
The research on the migration and evolution mechanism of the caving rock is the basis for improving the recovery rate of ore and reducing the loss and dilution of the ore. The naturally or forcibly caving ore rock dispersions are different in size and shape, and the movement form of particles and the extrusion collision behavior among the particles in the process of transporting the ore rock dispersions have great influence on the ore drawing result. Therefore, the exploration of the particle displacement, speed, stress, deformation and cracking conditions in the transportation process of the caving rock has an important effect on improving the recovery rate of the ore and reducing loss and dilution.
At present, in order to research the migration evolution mechanism of the caving rock, a simulation test device is generally adopted to carry out simulation test research on the caving rock so as to analyze the change rule of a discharging body and a loose body, clarify the influence of different factors on ore loss and dilution, provide theoretical basis and reference suggestion for the stope structure design and ore drawing management of an actual mine, and have important significance on safe, efficient and green mining of the mine.
However, in the traditional simulation test, a marker particle method is mostly adopted to explore the change rule of the ore discharging body and the loose body, the change of the ore drawing result is too much concerned, and the research on the motion mode between ore rocks and the interaction between the ore rocks is less; in addition, most of the existing ore drawing model test systems adopt a result presumption process mode, the ore drawing process is invisible, and the motion state and the stress condition of particles cannot be observed in real time.
Disclosure of Invention
The invention provides a simulation test device for visually monitoring the migration of discrete ore rocks, which aims to solve the problems that the existing simulation test device is invisible and cannot observe the motion state and stress condition of particles in real time.
In order to solve the technical problems, the invention provides the following technical scheme:
a simulation test device for visually monitoring the migration of bulk ore rocks comprises a model box, a balancing weight and image recognition equipment; wherein the content of the first and second substances,
the model box comprises a base and a box body with an opening at the top, and the bottom of the box body is fixed on the base; the box body is of a cubic structure consisting of a first side plate, a second side plate, a third side plate and a fourth side plate, wherein the first side plate and the second side plate are arranged oppositely, the first side plate is made of transparent materials, and an ore outlet with a preset size is formed in one side of the first side plate, which is in contact with the base;
a partition board is arranged in the box body and positioned between the first side board and the second side board, and the partition board, the first side board and the second side board are distributed in parallel in the vertical direction;
the interval between the partition plate and the second side plate is used for filling first preset type of mineral rock particles, and the interval between the partition plate and the first side plate is used for filling second preset type of mineral rock particles;
the counterweight block is arranged at the opening at the top of the box body so as to apply pressure with a preset size to the ore rock particles filled in the box body; the image recognition device is arranged in front of the first side panel.
The first side plate is detachably connected with the third side plate and the fourth side plate.
The partition plate is detachably connected with the third side plate and the fourth side plate.
The second side plate is detachably connected with the third side plate and the fourth side plate.
The second side plate comprises multiple sections of panels which are sequentially arranged in the vertical direction.
The image recognition equipment is used for observing the displacement, speed, stress, deformation and fracture conditions of ore rock particles in the box body in the ore drawing process in real time.
The image recognition equipment is double-camera equipment.
The second side plate, the third side plate, the fourth side plate and the partition plate are all made of polyvinyl chloride.
Wherein, the material of first curb plate is toughened glass.
And the inner wall of the box body is polished to increase the friction force in the ore drawing process.
The technical scheme provided by the invention has the beneficial effects that at least:
according to the simulation test device for the visual monitoring of the bulk ore migration, the displacement, the speed, the stress, the deformation and the fracture condition of ore particles at the front end of the end ore drawing are observed in real time through the image recognition equipment at the front of the model box, so that the defect that the traditional ore drawing test device cannot observe in real time, visually and continuously is overcome; the distance between the partition plate and the transparent first side plate in the simulation device is adjustable, and the first side plate is replaceable, so that the ore drawing process of the discrete ore rocks with different lumpiness is conveniently simulated; meanwhile, the second side plate of the simulation device adopts a detachable sectional design, so that the ore loading work and the sign particle laying work are convenient to carry out; ore drawing tests under different pressure conditions can be carried out by adjusting the weight of the balancing weight; the method is simple to operate, high in applicability, visual, capable of simply and efficiently researching and observing the motion state of the particles in the ore drawing process, widely applicable to the research of ore drawing simulation tests, and has guiding and reference significance for actual engineering.
Drawings
In order to more clearly illustrate the technical solutions in the embodiments of the present invention, the drawings needed to be used in the description of the embodiments will be briefly introduced below, and it is obvious that the drawings in the following description are only some embodiments of the present invention, and it is obvious for those skilled in the art to obtain other drawings based on these drawings without creative efforts.
Fig. 1 is a schematic structural diagram of a simulation test device for visually monitoring the migration of a discrete ore rock according to an embodiment of the present invention;
FIG. 2 is a front view of a mold box provided by an embodiment of the present invention;
FIG. 3 is a rear view of a mold box provided by an embodiment of the present invention;
FIG. 4 is a cross-sectional view of the mold box of FIG. 1 taken along line A-A according to an embodiment of the present invention.
Description of reference numerals:
1. a box body; 2. a first predetermined type of mineral rock particles; 3. a second predetermined type of mineral rock particles;
4. a base; 5. an ore outlet; 6. an image recognition device; 7. a first side plate; 8. a second side plate;
9. a balancing weight; 10. a separator.
Detailed Description
In order to make the objects, technical solutions and advantages of the present invention more apparent, embodiments of the present invention will be described in detail with reference to the accompanying drawings.
Referring to fig. 1 to 4, the present embodiment provides a simulation test apparatus for visually monitoring the migration of discrete rock, as shown in fig. 1, which includes: a model box, a counterweight 9 and an image recognition device 6; wherein, the first and the second end of the pipe are connected with each other,
the model box comprises a base 4 and a box body 1 with an opening at the top, and the bottom of the box body 1 is fixed on the base 4; the box body 1 is of a cubic structure consisting of a first side plate 7, a second side plate 8, a third side plate and a fourth side plate, wherein the first side plate 7 and the second side plate 8 are oppositely arranged, the third side plate and the fourth side plate are oppositely arranged, the first side plate 7 is made of transparent materials, and one side of the first side plate 7, which is in contact with the base 4, is provided with an ore outlet 5 with a preset size;
as shown in fig. 4, a partition plate 10 is arranged in the box body 1, the partition plate 10 is located between the first side plate 7 and the second side plate 8, the partition plate 10 is distributed in parallel with the first side plate 7 and the second side plate 8 in the vertical direction, and a preset distance is kept between the partition plate 10 and the first side plate 7; wherein, can dismantle between baffle 10 and third side board and the fourth side board and be connected to be convenient for demolish baffle 10, realize simultaneously that the interval between baffle 10 and the first curb plate 7 is adjustable, thereby can realize not unidimensional bulk mineral drawing experiment.
The interval between the partition board 10 and the second side board 8 is used for laying the first preset type ore particles 2, and the interval between the partition board 10 and the first side board 7 is used for laying the second preset type ore particles 3; the partition plate 10 can prevent the second preset type ore rock particles 3 from being mixed with the first preset type ore rock particles 2 in advance, prevent the second preset type ore rock particles 3 from toppling over in the laying process, and draw out the partition plate 10 after the laying is finished; specifically, in the present embodiment, the first preset type of ore particles 2 are ordinary bulk ore particles, which may be made of ore, rock and similar materials; the second predetermined type of mineral rock particles 3 are spray coated speckle mineral rock particles, which can be made of ore, rock and similar materials.
Further, as shown in fig. 2 and 3, the first side plate 7 is detachably connected with the third side plate and the fourth side plate, so that the first side plate 7 can be replaced conveniently, and replacement of the ore outlets 5 with different sizes can be realized. Meanwhile, the second side plate 8 is detachably connected with the third side plate and the fourth side plate. And the second side plate 8 comprises a plurality of sections of panels which are arranged in sequence in the vertical direction. Of course, the partition 10 may also be provided in a segmented configuration, wherein the individual panel height of the second side panel 8 corresponds to the individual panel height of the partition 10. As the height of the first predetermined type of rock particles 2 is laid increases, panels are continually added to increase the height of the second side panel 8.
The counterweight 9 is arranged at the opening at the top of the box body 1 to apply pressure with a preset size to ore rock particles filled in the box body 1; specifically, in this embodiment, the counterweight 9 is a cuboid block, which can be increased or decreased according to the research needs, so as to change the pressure of the first preset type ore rock particles 2 and the second preset type ore rock particles 3 in the box body 1; thereby simulating ore drawing tests at different pressures.
The image recognition device 6 is arranged in front of the first side plate 7 and used for observing the displacement, speed, stress, deformation, cracking condition and the like of ore rock particles in the box body 1 in the ore drawing process in real time. The distance between the image recognition device 6 and the first side plate 7 of the model box can be adjusted according to the image definition, so that accurate recognition of the image can be realized. Specifically, in the present embodiment, the image recognition device 6 is a dual-camera device, but it should be understood that the present embodiment is not limited to a specific type of the image recognition device 6.
The second side plate 8, the third side plate, the fourth side plate and the partition plate 10 are all made of PVC (Polyvinyl chloride). The first side plate 7 is made of toughened glass. And the inner wall of the box body 1 is polished to increase the friction force in the ore drawing process. It should be understood that the specific materials of the first side plate 7, the second side plate 8, the third side plate, the fourth side plate and the partition plate 10 are not limited in this embodiment.
The process of visually monitoring the migration of the ore rock by the simulation test device of the embodiment is as follows:
1) before the test, the first side plate 7 which meets the size of the ore outlet of ore-drawing discrete particles is embedded into the box body 1, and the distance between the proper partition plate 10 and the first side plate 7 is selected according to the particle size of the discrete particles;
2) paving prepared common discrete ore rock particles between a second side plate 8 and a partition plate 10, paving prepared spraying speckle ore rock particles between the partition plate 10 and a first side plate 7, paving mark particles after a certain height is paved, additionally installing a panel after the height of a single panel in the second side plate 8 is reached, drawing out the partition plate 10, and paving a new round of discrete ore rock particles;
3) after the scattered rock particles are laid, adding a balancing weight 9 at the top of the box body 1, and adjusting the image recognition equipment 6 to enable the view of the sprayed scattered rock particles behind the first side plate 7 in the image recognition equipment 6 to be maximum and the image to be clearest;
4) starting the image recognition equipment 6, continuously carrying out end ore removal through the ore outlet 5, and researching the displacement, speed, stress, deformation and fracture conditions of ore rock particles;
5) and repeating 2), 3), 4), operating, changing different particle diameters, different particle shapes, different discrete materials and different weights, testing, and visually monitoring the particle migration under the influence of different factors.
In conclusion, the simulation test device for visually monitoring the transportation of the discrete ore rocks in the embodiment carries out real-time observation on the displacement, speed, stress, deformation and fracture conditions of the ore particles at the front end of the end ore drawing through the image recognition equipment at the front of the model box, thereby overcoming the defect that the traditional ore drawing test device cannot carry out real-time, visual and continuous observation; the distance between the partition plate and the transparent first side plate in the simulation device is adjustable, and the first side plate is replaceable, so that the spraying speckle mineral rock particles and the common mineral rock particles can be conveniently and respectively filled, and the spraying speckle mineral rock particles can be prevented from toppling over, so that the mineral rock migration can be simply and efficiently visually monitored through image recognition equipment, and the defect that a traditional ore drawing test model is not visible is overcome; the device is simple to operate, high in applicability, visual, capable of simply and efficiently researching and observing the motion state of particles in the ore drawing process, widely applicable to the research of ore drawing simulation tests, and significant in guidance and reference to actual engineering.
Moreover, it is noted that, in this document, relational terms such as first and second, and the like are used solely to distinguish one entity or action from another entity or action without necessarily requiring or implying any actual such relationship or order between such entities or actions. The terms "comprises," "comprising," or any other variation thereof, are intended to cover a non-exclusive inclusion, such that a process, method, article, or terminal that comprises a list of elements does not include only those elements but may include other elements not expressly listed or inherent to such process, method, article, or terminal. Without further limitation, an element defined by the phrase "comprising an … …" does not exclude the presence of other like elements in a process, method, article, or terminal that comprises the element.
It should also be noted that the above describes only preferred embodiments of the invention and that, although preferred embodiments of the invention have been described, it will be apparent to those skilled in the art that, once having the benefit of the present disclosure, numerous modifications and adaptations can be made without departing from the principles of the invention described herein and are intended to be within the scope of the invention. Therefore, it is intended that the appended claims be interpreted as including preferred embodiments and all such alterations and modifications as fall within the scope of the embodiments of the invention.
Claims (4)
1. A simulation test device for visual monitoring of bulk ore rock migration is characterized by comprising a model box, a balancing weight and image recognition equipment; wherein the content of the first and second substances,
the model box comprises a base and a box body with an opening at the top, the inner wall of the box body is polished, and the bottom of the box body is fixed on the base; the box body is of a cubic structure consisting of a first side plate, a second side plate, a third side plate and a fourth side plate, wherein the first side plate and the second side plate are arranged oppositely, the first side plate is made of transparent materials, and an ore outlet with a preset size is formed in one side of the first side plate, which is in contact with the base;
a partition board is arranged in the box body and positioned between the first side board and the second side board, and the partition board, the first side board and the second side board are distributed in parallel in the vertical direction;
the interval between the partition plate and the second side plate is used for filling first preset type of mineral rock particles, and the interval between the partition plate and the first side plate is used for filling second preset type of mineral rock particles; the first preset type of ore rock particles are common bulk ore rock particles made of ores, rocks and similar materials, the second preset type of ore rock particles are sprayed speckle ore rock particles, tests of changing different particle sizes, different particle shapes, different bulk materials and different clump weights are carried out, the particle migration under the influence of different factors is visually monitored, and the displacement, speed, stress, deformation and fracture conditions of the ore rock particles are observed in real time;
the counterweight block is arranged at an opening at the top of the box body so as to apply pressure with a preset size to ore rock particles filled in the box body; the image recognition device is arranged in front of the first side plate;
the partition board is detachably connected with the third side board and the fourth side board so as to be convenient to detach, and meanwhile, the interval between the partition board and the first side board is adjustable;
the second side plate is detachably connected with the third side plate and the fourth side plate;
the second side plate comprises a plurality of sections of panels which are sequentially arranged in the vertical direction; the partition plate is arranged into a segmented structure, wherein the height of a single panel of the second side plate is consistent with that of a single panel of the partition plate;
the image recognition equipment is used for observing the displacement, speed, stress, deformation and fracture conditions of ore rock particles in the box body in the ore drawing process in real time;
the image recognition device is a double-camera shooting device.
2. The simulation test device for visual monitoring of discrete ore rock migration according to claim 1, wherein the first side plate is detachably connected with the third side plate and the fourth side plate.
3. The simulation test device for visual monitoring of discrete ore rock migration according to claim 1, wherein the second side plate, the third side plate, the fourth side plate and the partition plate are all made of polyvinyl chloride.
4. The simulation test device for the visual monitoring of the discrete ore rock migration according to claim 1, wherein the first side plate is made of tempered glass.
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| CN112730026B (en) * | 2020-12-21 | 2021-10-15 | 北京科技大学 | System and method for analyzing spatial and temporal evolution law of ore rock dispersion fracture |
| CN112730163B (en) * | 2020-12-24 | 2022-09-27 | 昆明理工大学 | Method for observing movement locus of particles in bulk |
| CN112924302A (en) * | 2021-01-27 | 2021-06-08 | 北京科技大学 | Image recognition-based discrete shear characteristic evolution rule research method |
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| CN103048241B (en) * | 2012-12-20 | 2014-10-22 | 同济大学 | Sand flowing model testing system for drop tower platform |
| CN204556449U (en) * | 2015-04-10 | 2015-08-12 | 北京科技大学 | A kind of two-way particle flow photoelastic experiment device |
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