CN110340037B

CN110340037B - Color sorting device for single mineral sorting

Info

Publication number: CN110340037B
Application number: CN201910750806.5A
Authority: CN
Inventors: 张丹萍
Original assignee: Institute of Geology and Geophysics of CAS
Current assignee: Institute of Geology and Geophysics of CAS
Priority date: 2019-08-14
Filing date: 2019-08-14
Publication date: 2020-04-21
Anticipated expiration: 2039-08-14
Also published as: CN110340037A

Abstract

The invention relates to a color sorting device for sorting single minerals, which comprises at least one perforated plate, a material distribution device, a mineral collection device, a moving slide rail, a pressure device, a first camera device and a control device, wherein the material distribution device comprises a hopper and a vibration device, and the hopper is arranged above the vibration device; during material distribution, the porous plate is fixed at the top of the vibrating device, the effect of placing one ore particle in one hole in the porous plate is realized through the vibrating device, during sorting, the porous plate is fixed on the workbench, and the first camera device is arranged above the porous plate; mineral collection device fixed connection is on the motion slide rail to with the help of the motion slide rail motion in space three-dimensional direction, the motion slide rail is established on the workstation, and pressure device passes through the top of gas circuit connection mineral collection device, and provides the negative pressure to mineral collection device, makes the inside of ore grain entering mineral collection device from mineral collection device's bottom on the perforated plate.

Description

Color sorting device for single mineral sorting

Technical Field

The invention relates to the technical field of mineral separation, in particular to a color separation device for single mineral separation.

Background

The single mineral separation is a scientific technology for realizing mutual separation on a purification instrument by utilizing the difference of optional properties among various minerals, has the characteristics of less amount of mineral to be separated and high purity to be separated, and is widely applied to geological age determination, stable isotope analysis, inclusion component analysis, inclusion bursting method temperature measurement, high-temperature and high-pressure mineral formation experiments, diffraction analysis, Mossbauer spectrum analysis, various chemical analyses and the like.

At present, the method for separating single mineral mainly comprises gravity separation, magnetic separation, flotation, electric separation, chemical separation, color separation and the like. The color sorting is a physical method for sorting by utilizing the difference of colors or transparencies among minerals, and has the advantages of simple principle and convenient realization. There are ore color sorters available on the market for large processing capacity in ore dressing plants, for example, CN108273766A discloses a large and small material feeding selection device for an ore color sorter, which employs a large and small material feeding selection device, specifically, three layers of screens are used to distinguish the sizes of materials. CN107520145A discloses wet material look selection of ore machine, including pay-off portion, select separately portion and supporting part, arrange through multistage separation structure, realize sorting of refining to the material.

The ore color sorter disclosed in the prior art is generally used for processing large-particle material particles (above millimeter level), and is difficult to clean, easy to cross-contaminate, incapable of completely collecting materials and the like, and thus cannot be applied to single ore sorting. The single mineral separation generally needs to separate target minerals into concentrates with the purity of more than 99%, while minerals with sufficient purity are difficult to obtain through the existing separation methods in a laboratory, such as gravity separation, magnetic separation, flotation and the like, and generally need to be manually refined and purified under binoculars, and particularly for mineral particles with small particle sizes of 40-80 meshes, if manual operation is used, the workload and difficulty of single mineral separation are greatly increased. At present, no small-particle single mineral sorting equipment which is convenient to operate, high in precision and capable of being automated exists in the market. Therefore, it is very important to develop a device capable of automatically identifying and sorting, especially for small-particle minerals of 40-80 meshes, the device for sorting by using the color or transparency of the minerals can not only replace manual lens to pick up impurities, but also can directly obtain the required single minerals.

Disclosure of Invention

The invention aims to solve the problem that the sorting of small-particle single minerals is difficult to meet the actual requirements of scientific research and production in the prior art, and provides a color sorting device for sorting single minerals.

In order to solve the problems, the invention provides a color sorting device for sorting single minerals, which comprises at least one perforated plate, a material distribution device, a mineral collection device, a moving slide rail, a pressure device, a first camera device and a control device, wherein the material distribution device comprises at least one hopper and a vibration device, and the hopper is arranged above the vibration device; when distributing materials, the porous plate is fixed at the top of the vibrating device, and the vibrating device drives the porous plate to vibrate in a three-dimensional direction, so that the effect of placing one ore particle in one hole in the porous plate is realized; during sorting, the porous plate is fixed on the workbench, and the first camera device is arranged above the porous plate; the mineral collecting device is fixedly connected to the moving slide rail and moves in the three-dimensional direction of the space by means of the moving slide rail, the moving slide rail is arranged on the workbench, the pressure device is connected with the top of the mineral collecting device through a gas path and provides negative pressure for the mineral collecting device, so that mineral particles on the porous plate are sucked into the mineral collecting device from the bottom end of the mineral collecting device; the control device comprises a photoelectric recognition and signal processing transmission system and is connected with and controls the material distribution device, the mineral collection device, the moving slide rail, the pressure device and the first camera device through lines.

The distributing device comprises at least one hopper, a vibrating device and a collecting hopper, wherein the hopper is arranged above the vibrating device, a porous plate is arranged between the vibrating device and the hopper, the vibrating device and the porous plate are detachably and fixedly connected, and the collecting hopper is arranged below the vibrating device and used for collecting mineral aggregates falling from the porous plate. The volume of the hopper is determined according to the amount of the mineral aggregate actually screened.

Preferably, at least one layer of sieve plate is arranged in the hopper and used for screening mineral aggregate falling from the hopper, and the placing direction of the sieve plate and the central axis of the hopper form an angle of 40-90 degrees; the placing direction of the sieve plate and the central axis of the hopper form an angle of 70-90 degrees preferably; more preferably, the screen deck is perpendicular to the central axis of the hopper.

Preferably, the number of the sieve plates is 2-10, preferably 2-5, different sieve plates have different mesh numbers, such as 35 meshes, 40 meshes, 42 meshes, 45 meshes, 48 meshes, 50 meshes, 60 meshes, 65 meshes, 70 meshes and 80 meshes, and the sieve plates are arranged in the hopper from top to bottom in sequence according to the order of the mesh numbers from small to large. According to the particle diameter scope of the mineral aggregate that actual need was selected separately, the mesh number of reasonable selection sieve, more preferred, the inside screens of 10 placing the sieve of presetting of hopper, according to actual need, during the use at every turn, the sieve that the corresponding mesh number of selective installation.

Each screen plate is provided with a controller which is connected with the control device through a line and can control the opening and closing of the corresponding screen plate so that mineral materials on the screen plate fall from the hopper, and the screen plate can be opened in a mode that the screen plate is withdrawn from the hopper or in a mode that the screen plate is divided into two or more pieces.

Preferably, a photoelectric sensor is arranged on the inner wall of the hopper and arranged on the inner wall of the hopper below the sieve plate on the lowest layer for sensing whether mineral aggregate falls down from the sieve plate above, and the photoelectric sensor is connected with the control device through a line. Since the mineral aggregates entering the hopper inevitably contain very fine powdery mineral aggregates which, if they fall into the holes of the perforated plate, affect the color sorting effect, they are excluded from the color sorting process in advance by the sensing of the photoelectric sensor.

When the sieve plate is used, sieve plates with proper meshes are selected to be placed in a hopper according to the particle size range of the single mineral to be sorted in the mineral aggregate, the pretreated mineral aggregate is placed in the hopper, the mineral aggregate is further screened and classified among all levels of sieve plates under the action of self gravity and hopper shaking, the mineral aggregate with large particle size is intercepted by the sieve plates, the mineral aggregate with small particle size falls on the next sieve plate to be continuously screened until the mineral aggregate is screened into a plurality of narrow levels with particle size difference below 10 meshes, and the mineral aggregates are convenient to be distributed on the porous plates with corresponding particle size specifications. The superfine powdered mineral aggregate that contains in the mineral aggregate drops into the collecting hopper from the sieve of lower floor, works as photoelectric sensor no longer senses when having mineral aggregate to drop from the sieve of lower floor, proves that superfine powdered mineral aggregate has got rid of and has accomplished, places vibrating device and perforated plate in the hopper below, and lower floor's sieve is opened under the control of its controller that corresponds for the sample on the sieve of lower floor falls into the perforated plate that corresponds and selects separately.

The perforated plate and the vibrating device are arranged below the hopper, and the perforated plate is detachably fixed on the upper surface of the vibrating device and used for receiving mineral aggregates falling from the hopper. The upper surface of perforated plate has sunken hole, and the diameter of all holes of same perforated plate is the same, the degree of depth is the same, and is preferred, the hole is array arrangement on the perforated plate.

Preferably, the number of the porous plates is the same as that of the sieve plates, the size of each hole of the porous plates corresponds to a certain range of mesh number, for example, the holes of the first porous plate are correspondingly provided with ore particles with 35-40 meshes, the diameter of each hole is 0.42-0.50mm, the depth of each hole is 0.30-0.35mm, the holes of the second porous plate are correspondingly provided with ore particles with 40-42 meshes, the diameter of each hole is 0.38-0.42mm, the depth of each hole is 0.25-0.30mm, the holes of the third porous plate are correspondingly provided with ore particles with 42-45 meshes, the diameter of each hole is 0.35-0.38mm, the depth of each hole is 0.23-0.28mm, the holes of the fourth porous plate are correspondingly provided with ore particles with 45-48 meshes, the diameter of each hole is 0.32-0.35mm, the depth of each hole of the fifth porous plate is correspondingly provided with ore particles with 48-50 meshes, the diameter of 0.30-0.32mm, the depth is 0.18-0.23mm, 50-60 mesh ore particles are correspondingly placed in holes of the six-number porous plate, the diameter of each hole is 0.27-0.30mm, the depth is 0.16-0.21mm, 60-65 mesh ore particles are correspondingly placed in holes of the seven-number porous plate, the diameter of each hole is 0.25-0.27mm, the depth of each hole is 0.14-0.19mm, 65-70 mesh ore particles are correspondingly placed in holes of the eight-number porous plate, the diameter of each hole is 0.23-0.25mm, the depth of each hole is 0.12-0.17mm, 70-80 mesh ore particles are correspondingly placed in holes of the nine-number porous plate, the diameter of each hole is 0.21-0.23mm, and the depth of each hole is 0.10-0.15 mm.

When in use, according to the particle size range of the mineral monomer to be sorted in the mineral aggregate, a proper porous plate and a sieve plate with a proper mesh number are selected and placed in the hopper. After the superfine powdery mineral aggregate is removed, the vibrating device and the porous plates are placed below the hopper, and the lowest layer of sieve plate is opened under the control of the corresponding controller, so that the samples on the lowest layer of sieve plate are uniformly spread to the corresponding porous plates for sorting; and then selecting a porous plate corresponding to the penultimate sieve plate to be installed on the vibrating device, opening the penultimate sieve plate under the control of the corresponding controller, uniformly spreading the samples on the penultimate sieve plate to the corresponding porous plate, then sorting, and so on until the mineral aggregate of all the sieve plates in the hopper is uniformly spread to the corresponding porous plate.

The vibrating device can drive the porous plate to vibrate in the vertical, left-right and front-back directions, and the amplitude of the vibrating device can be manually adjusted or adjusted by the control device. After the mineral aggregate falls onto the perforated plate from the hopper, the mineral aggregate which does not enter the hole is moved into the empty hole through the multi-directional vibration of the vibration device, meanwhile, redundant mineral aggregate which is extruded into the hole of the existing mineral aggregate is moved out of the hole, and the redundant mineral aggregate falls into the collecting hopper below through the vibration effect, so that the uniform distribution of the mineral aggregate in all the holes of the perforated plate is promoted.

Preferably, the upper surface of the vibrating device is inclined, so that the porous plate fixed on the vibrating device is inclined, when the vibrating device vibrates, redundant mineral aggregates slide into the aggregate bin, and more preferably, the angle formed by the porous plate and the horizontal plane can be adjusted according to the particle size of the mineral aggregates. Preferably, the angle formed by the porous plate and the horizontal plane is 10-80 degrees.

Preferably, the top of perforated plate is equipped with the scraper blade, the scraper blade can be along the upper surface motion of perforated plate, for example, the edge of vibrating device upper surface is equipped with the scraper blade slide rail, the both ends detachably of scraper blade is fixed on the scraper blade slide rail for the scraper blade can move on perforated plate outside and perforated plate, will exceed the mineral aggregate of perforated plate upper surface take off at a take the altitude, fall into in the collecting hopper, the mineral aggregate that exceeds the perforated plate upper surface take the altitude includes the mineral aggregate that does not get into the hole and because of crowding the mineral aggregate that exceeds the perforated plate upper surface in same hole for place a mineral aggregate in a hole. The movement of the squeegee can be controlled manually or automatically by the control device.

During the use, the scraper blade is followed at the perforated plate upper surface the scraper blade slide rail motion will the mineral aggregate that exceeds the perforated plate upper surface take the altitude scrapes off, falls into in the aggregate bin, then stops in the outside at the perforated plate edge, waits for next time to move.

For the convenience the mineral collection device absorbs the mineral grain from the hole of porous plate, prevents simultaneously that a mineral grain card is difficult to the suction in a hole, the degree of depth in hole is less than the diameter for even the mineral grain falls into in the hole, also has a fraction to be higher than the upper surface of porous plate, in the face of this kind of condition, the scraper blade can take two kinds of designs to avoid scraping out only one mineral grain in the hole: (1) the lower surface of the scraper is smooth, and keeps a distance from the upper surface of the porous plate, wherein the distance is the difference between the diameter and the depth of the hole; (2) the lower surface contact of scraper blade perforated plate's upper surface, and the scraper blade lower surface is equipped with the pore of upwards caving in the position that corresponds the hole, the degree of depth that the pore upwards caved in is the difference of hole diameter and hole degree of depth.

Preferably, the bottom of the aggregate bin is connected with the top inlet of the bin through a negative pressure gas circuit, and mineral aggregates falling into the aggregate bin are recovered to the bin for re-spreading. Preferably, when the distributing device includes a plurality of hoppers, the bottom of collecting hopper is connected with the top entry of another hopper that does not place the sieve through the negative pressure gas circuit, and the mineral aggregate that will fall into the collecting hopper is retrieved another hopper and is scattered again on the perforated plate, improves the utilization ratio of perforated plate.

The invention creatively uses the porous plates with holes of different sizes to disperse mineral aggregates with different particle sizes, realizes that one mineral particle is placed in one hole, is convenient for the mineral collecting device to carry out sorting and metering on the porous plate, and the vibrating device can promote the distribution of the mineral aggregates on the porous plate and the removal of redundant mineral aggregates on the porous plate. The preferred scheme of hopper can realize multistage screening, according to the difference of mineral aggregate particle diameter with the meticulous screening of a batch of mineral aggregate, then with the porous plate cooperation of corresponding hole size, be favorable to realizing the target that a hole corresponds a mineral grain in the porous plate to the screening is accomplished with distinguishing process automation, need not artifical the sorting.

Preferably, in the process of spreading the mineral aggregate from the hopper to the perforated plate, the relative position between the hopper and the perforated plate is movable to promote uniform spreading of the mineral aggregate, and the perforated plate may be fixed, the hopper may be movable, the hopper may be fixed, the perforated plate may be movable, or both the perforated plate and the hopper may be movable, and may have a relative displacement.

Preferably, the lower part of hopper is equipped with second camera device after distributing device accomplishes once to spill, vibrate, the scraper blade strikes off the operation, and second camera device shoots the perforated plate of below, and image data reaches controlling means handles the discernment to calculate the vacancy rate in perforated plate hole, if vacancy rate is greater than the setting value, then show that there is not mineral aggregate in more hole, the perforated plate utilization ratio is not high, will the mineral aggregate in the collecting hopper is transported back hopper or another hopper, carries out the second and spills, vibrates, the scraper blade strikes off the operation, reduces the vacancy rate.

The motion slide rail is connected on the workbench, and the motion slide rail comprises a first slide rail, a second slide rail, a third slide rail and a fourth slide rail, wherein the first slide rail and the second slide rail are parallel to each other and are respectively arranged at two sides of the workbench, the third slide rail is arranged above the first slide rail and the second slide rail and is perpendicular to the first slide rail and the second slide rail, the fourth slide rail is connected on the third slide rail and is perpendicular to the first slide rail and the third slide rail, namely, the first slide rail, the third slide rail and the fourth slide rail are respectively arranged in the three-dimensional directions of the spaces perpendicular to each other. And the third slide rail and the fourth slide rail are positioned above the workbench.

The first slide rail is connected with a first slide block, the second slide rail is connected with a second slide block, the first slide block is connected with a third slide rail through a first fixed connecting rod, the second slide block is connected with a third slide rail through a second fixed connecting rod, and the first fixed connecting rod and the second fixed connecting rod are the same in length, so that the third slide rail is parallel to the horizontal plane. When the sliding rail is used, the first sliding block and the second sliding block move synchronously, and the third sliding rail is guaranteed to be perpendicular to the first sliding rail all the time.

The third slide rail is fixedly connected with a fourth slide rail through a third slide block, and the third slide block is connected with the third slide rail and can move on the third slide rail. And the fourth sliding rail is fixed on the third sliding block and can move along the third sliding rail along with the third sliding block.

And the fourth sliding block is connected to the fourth sliding rail and can move along the fourth sliding rail. The mineral collecting device is fixed on the fourth sliding block and can move along the fourth sliding rail along with the fourth sliding block. Therefore, the mineral collection device can move to any position in a three-dimensional space through the first sliding rail, the second sliding rail, the third sliding rail and the fourth sliding rail and can move to any position of the lower porous plate to absorb mineral particles.

Preferably, the first sliding block, the second sliding block, the third sliding block and the fourth sliding block are connected with the control device through a transmission chain.

The mineral collecting device comprises an inner pipe and a sleeve, wherein the outer diameter of the inner pipe is smaller than the inner diameter of the sleeve, the middle upper part of the inner pipe extends into the middle lower part of the sleeve, the inner pipe is fixedly connected with the sleeve, and the air tightness of the joint is good. The top end and the tail end of the inner pipe are respectively provided with an upper opening and a lower opening, and the ore particles on the porous plate enter the inner pipe from the lower opening, then leave the inner pipe from the upper opening and fall into the sleeve. The bottom of the sleeve is closed, and the top opening of the sleeve is connected with the pressure device. And when more ore particles are accumulated at the bottom of the casing, detaching the casing from the pressure device, and removing the ore particles in the casing.

Preferably, a screen is arranged at the opening at the top of the casing pipe to prevent ore particles sucked into the casing pipe from entering the pressure device.

Preferably, the inner diameter of the inner pipe is 1-2mm, the outer diameter is 2-4mm, and the length is 50-70 mm.

Preferably, the inner diameter of the sleeve is 10-15mm, the outer diameter is 12-17mm, and the length is 100-120 mm.

Preferably, the length of the inner pipe extending into the sleeve is 25-35 mm.

Preferably, the inner tube is transparent glass with sheathed tube material, is convenient for observe the mineral grain and inhales the motion condition behind the mineral collection device prevents that the inner tube from blockking up to in time clear up the interior accumulation of sleeve ore grain.

Preferably, the mineral gathering device is inclined at an angle, preferably 30-50 degrees, to the horizontal, and is secured to the fourth slide by a rotatable detent. More preferably, the inclination angle of the mineral collection device is adjustable manually or automatically by the control device. The ore granule is followed behind the upper shed entering sleeve pipe of inner tube, vertically falls under the effect of gravity, and when inner tube and sleeve pipe slope, the ore granule is vertical to be fallen on sheathed tube pipe wall, and the landing is to the sleeve pipe bottom again, and can not fall into the inner tube, prevents that inspiratory ore granule from falling out from the inner tube again.

The mineral collecting device provided by the invention adopts the design that the inner pipe is sleeved with the sleeve, the defects that the traditional mineral collecting device is insufficient in suction force and small in accommodating space for sucking mineral particles are overcome, and the design and the inclination design of the pipe diameters of the inner pipe and the sleeve are matched, so that the phenomenon that the mineral particles fall back or block the inner pipe is effectively avoided, the cleaning and replacing frequency of the mineral collecting device is reduced, and the sorting efficiency is improved.

The top opening of the sleeve of the mineral collecting device is connected with a pressure device through a gas path. The pressure device comprises vacuum equipment, an air pressure regulating valve and an air path, and is used for providing negative pressure for the mineral collecting device and sucking mineral particles on the porous plate. Preferably, the vacuum equipment and the air pressure regulating valve are connected with the control device through lines, when the mineral collecting device moves to the position of the mineral grains needing to be sorted and sucked, the control device controls the pressure device to provide negative pressure to suck the mineral grains, and after the suction is finished, the supply of the negative pressure is stopped, and the mineral collecting device is waited to move and needs to suck the mineral grains again.

The first camera device is arranged above the porous plate and is connected with the control device through a line. Preferably, the first imaging device is mounted on the third slider. Before mineral collection device absorbs the ore grain, first camera device shoots all holes and ore grains of perforated plate, controlling means's photoelectric recognition and signal processing transmission system are to image information transmission, analysis and processing, select the procedure through the start-up look, to the point-by-point analysis of image, count to the ore grain that has the colour difference, realize the ration function, and the concrete position of the ore grain that has the colour difference of simultaneous identification record realizes the locate function, gives electric control unit with signal transmission again, electric control unit control the motion slide rail drives the hole that mineral collection device moved the ore grain that has the colour difference, absorbs one by one, leaves required mineral aggregate on the perforated plate, finally realizes the sorting of single mineral.

The distributing device can be arranged on the workbench or can be independent of the workbench, and when the distributing device is arranged independently of the workbench, the movement of the porous plate between the distributing device and the workbench is completed through manual movement or mechanical movement.

The control device comprises a photoelectric recognition and signal processing transmission system, an electric control device, and a built-in color selection program and a control program. The photoelectric recognition and signal processing transmission system is connected with and controls the first camera device to recognize and process image information, and preferably, the photoelectric recognition and signal processing transmission system is connected with and controls the second camera device to recognize and process image information; preferably, the photoelectric recognition and signal processing transmission system is connected with and controls the photoelectric sensor and the controller, recognizes and processes photoelectric signals, performs recognition analysis on the multi-stage sieve plates, and judges that the sieve plates for discharging should be opened.

The color sorting program and the control program are main control software of the control device, and the color sorting program analyzes the images acquired by the first camera device point by point, quantifies the purity of the mineral aggregate and positions mineral grains with different colors; the control program controls the air pressure regulating valve to further determine the time for sucking the ore particles, and the control program also controls the electric control device and sends a motion instruction to the electric control device according to the program for sorting the ore particles.

The electric control device controls the moving parts of the color selection device, and controls the movement of the first sliding block, the second sliding block, the third sliding block and the fourth sliding block, and controls the vibration device and the sieve plate. For example, the electric control device controls the first slide block, the second slide block, the third slide block and the fourth slide block to move, so that the mineral collecting device accurately positions mineral materials to be sorted; the electric control device can also control the amplitude and the inclination angle of the vibrating device, control the movement of the scraping plate, control the displacement of the hopper, control the opening and closing of the sieve plate and control the inclination angle of the mineral collecting device.

The mounting position of the control device is selected from the third slide block, the workbench or beside the workbench.

The color selection device of the invention uses an external power supply or a built-in power supply, such as a storage battery, a battery and the like.

Drawings

Fig. 1 is a view showing a structure of a distribution device.

Fig. 2 shows a side view of the distribution device.

Fig. 3 shows a scraper blade.

Fig. 4 is a block diagram showing a sorting section of the color sorting apparatus.

Figure 5 shows a block diagram of a mineral collection apparatus.

In the attached drawings, 1-a workbench, 2-a porous plate, 201-a hole, 3-a first slide rail, 301-a first slide block, 302-a first fixed connecting rod, 4-a second slide rail, 401-a second slide block, 402-a second fixed connecting rod, 5-a third slide rail, 501-a third slide block, 6-a fourth slide rail, 601-a fourth slide block, 7-a transmission chain, 8-a mineral collecting device, 801-an inner pipe, 802-a sleeve pipe, 803-a screen, 9-an air pipe, 10-an air pressure regulating valve, 11-a vacuum device, 12-a first camera device, 13-a first hopper, 1301-a screen plate, 1302-a photoelectric sensor, 1303-a controller, 1304-a second camera device, 14-a scraper blade, 15-a scraper blade slide rail, 16-vibration device, 17-collecting hopper, 18-control device, 19-second hopper.

Detailed Description

The color sorting device for single mineral sorting provided by the invention is further explained by the following detailed description and the attached drawings, wherein the purity of single mineral sorting is verified by manual sorting under binoculars.

In the description of the present invention, it should be noted that the terms "above", "below", "inside", "outside", and the like indicate orientations or positional relationships based on the orientations or positional relationships shown in the drawings, and are only for convenience in describing the present invention and simplifying the description, but do not indicate or imply that the referred device or element must have a specific orientation, be constructed and operated in a specific range, and thus, should not be construed as limiting the scope of the present invention.

In the description of the present invention, unless explicitly stated otherwise, the terms "mounted", "connected" and "fixed" are to be understood broadly, for example, as a fixed connection or a detachable or integrated connection; can be a mechanical connection, and also can be an electrical or magnetic connection; may be directly connected or indirectly connected through an intermediate. The specific meanings of the above terms in the present invention can be understood in specific cases to those skilled in the art.

In the description of the present invention, it is to be understood that the terms "comprises" and "comprising," and any variations thereof, as used herein, are intended to cover a non-exclusive inclusion, such that a process, method, system, article, or apparatus that comprises a list of steps or elements is not necessarily limited to those steps or elements expressly listed, but may include other steps or elements not expressly listed or inherent to such process, method, article, or apparatus. Furthermore, the terms "first", "second", etc. are used for descriptive purposes only and are not to be construed as indicating or implying relative importance or implicitly indicating the number of technical features indicated.

Example 1

The structure of the distributing device of the present embodiment is shown in fig. 1 and 2, and the distributing device includes a first hopper 13, a vibrating device 16, and a collecting hopper 17. First hopper 13 is established in vibrating device 16's top, sets up perforated plate 2 between vibrating device 16 and the first hopper 13, and vibrating device 16 can dismantle fixed connection with perforated plate 2, and aggregate bin 17 is established in vibrating device 16's below for collect the mineral aggregate that drops from perforated plate 2.

Three layers of sieve plates 1301 are placed in the first hopper 13, the sieve plates 1301 are used for sieving mineral aggregates falling from the first hopper 13, and the three sieve plates 1301 are perpendicular to the central axis of the first hopper 13. Different sieve plates 1301 have different meshes, and the meshes from top to bottom of the sieve plates 1301 are 40 meshes, 42 meshes and 45 meshes respectively. Each screen plate 1301 is provided with a controller 1303, and the controller 1303 is connected to the control device 18 through a line and can control the opening and closing of the corresponding screen plate 1301, so that the mineral aggregate on the screen plate 1301 falls from the first hopper 13, and the screen plate 1301 is opened in a manner that the screen plate 1301 withdraws from the first hopper 13 or the screen plate 1301 is opened in two pieces.

A photoelectric sensor 1302 is arranged on the inner wall of the first hopper 13, the photoelectric sensor 1302 is arranged below the 45-mesh sieve plate 1301 and is used for sensing whether mineral aggregate falls from the sieve plate 1301 above, and the photoelectric sensor 1302 is connected with the control device 18 through a circuit.

When the multi-stage sieving machine is used, mineral aggregates are placed into the first hopper 13 and are sieved among the sieve plates 1301 at all stages, the mineral aggregates with large particle sizes are intercepted by the sieve plates 1301, the mineral aggregates with small particle sizes fall onto the next sieve plate 1301 to be continuously sieved until the mineral aggregates are sieved into a plurality of narrow grades with particle sizes different below 10 meshes, and the mineral aggregates are conveniently distributed on the porous plates 2 with corresponding particle sizes. The ultrafine powder mineral aggregate contained in the mineral aggregate falls into the collecting hopper 17 from the sieve plate 1301 on the lowest layer, when the photoelectric sensor 1302 does not sense that the mineral aggregate falls from the sieve plate 1301 on the lowest layer any more, the ultrafine powder mineral aggregate is proved to be completely removed, the vibrating device 16 and the porous plate 2 are placed below the first hopper 13, and the sieve plate 1301 on the lowest layer is opened under the control of the corresponding controller 1303, so that the sample on the sieve plate 1301 on the lowest layer falls into the corresponding porous plate 2 for sorting.

The upper surface of the perforated plate 2 has recessed holes 201, all the holes 201 of the same perforated plate 2 have the same diameter and the same depth, and the holes 202 are arranged in a 20 × 20 array on the perforated plate 2.

The color sorting device of the embodiment is provided with two porous plates 2, in order to facilitate the mineral collecting device 8 to absorb mineral particles from the holes 201 of the porous plates 2 and prevent one mineral particle from being blocked in one hole 201 and difficult to suck out, the depth of the hole 201 is smaller than the diameter, so that even if the mineral particles fall into the hole 201, a small part of the mineral particles is higher than the upper surface of the porous plate 2, the holes of the second porous plate are correspondingly provided with 40-42-mesh mineral particles, the diameter of each hole is 0.42mm, the depth of each hole is 0.30mm, the holes of the third porous plate are correspondingly provided with 42-45-mesh mineral particles, the diameter of each hole is 0.35mm, the depth of each hole is 0.28mm,

when the sieve plate 2 is used, according to the particle size range of the single mineral to be sorted in the mineral aggregate, a proper porous plate 2 is selected, and a sieve plate 1301 with a proper mesh number is selected and placed in the first hopper 13. The perforated plate 2 is detachably fixed to the upper surface of the vibrating device 16 for receiving the mineral material falling from the first hopper 13.

The vibrating device 16 can drive the porous plate 2 to vibrate in the up-down, left-right and front-back directions, and the upper surface of the vibrating device 16 is inclined, so that the porous plate 2 is also inclined, and the redundant mineral aggregate is convenient to slide into the aggregate bin 17. The amplitude and the inclination angle of the vibration means 16 can be adjusted by the control means 18.

After the mineral aggregate falls onto the porous plate 2 from the first hopper 13, the mineral aggregate which does not fall into the holes 201 is moved into the vacant holes 201 through multi-directional vibration of the vibration device 16, meanwhile, redundant mineral aggregates extruded into the holes 201 of the existing mineral aggregate are moved out of the holes 201, and the redundant mineral aggregate falls into the collecting hopper 17 below through vibration, so that the mineral aggregate is uniformly distributed in all the holes 201 of the porous plate 2.

A scraper 14 is arranged above the porous plate 2, the lower surface of the scraper 14 contacts the upper surface of the porous plate 2, and a hole channel which is recessed upwards is arranged on the lower surface of the scraper 14 at a position corresponding to the hole 201, and the depth of the hole channel which is recessed upwards is the difference between the diameter of the hole 201 and the depth of the hole 201, as shown in fig. 3.

The edge of 16 upper surfaces of vibrating device is equipped with scraper

blade slide rail

15, 15 on the scraper blade slide rail are fixed to scraper blade 14's both ends detachably, make scraper blade 14 can move on 2 outsides of perforated plate and perforated plate 2, will exceed the mineral aggregate of 2 upper surfaces of perforated plate and strike off, fall into collecting hopper 17, the mineral aggregate that exceeds 2 upper surfaces of perforated plate and 2 upper surfaces includes the mineral aggregate that does not get into hole 201 and the mineral aggregate that exceeds 2 upper surfaces of perforated plate because of crowded in same hole 201, make and place a mineral aggregate in a hole 201. The movement of the squeegee 14 is controlled by a control device 18. During the use, scraper blade 14 moves along scraper blade slide rail 15 at perforated plate 2 upper surface, will surpass the mineral aggregate of perforated plate 2 upper surface take the altitude to scrape off, falls into collecting hopper 17, then stops in the outside at perforated plate 2 edge, waits for next time to move.

The bottom of the aggregate bin 17 is connected with the top inlet of the first bin 13 through a negative pressure air path, and the mineral aggregate falling into the aggregate bin 17 is recovered to the first bin 13 and is re-spread.

In the process of spreading mineral aggregate from the first hopper 13 to the porous plate 2, the position of the first hopper 13 is moved along the arrangement matrix of the holes of the porous plate 2, and the relative position of the first hopper 13 and the porous plate 2 is changed, so that the uniform spreading of the mineral aggregate is promoted.

The lower part of the first hopper 13 is provided with a second camera device 1304, after the distributing device finishes one-time scattering, vibration and scraper scraping operation, the second camera device 1304 shoots the lower porous plate 2, image data are transmitted to the control device 18 for processing and recognition, the vacancy rate of the holes 201 of the porous plate is calculated, if the vacancy rate is larger than a set value, the fact that more holes 201 are not filled with mineral materials is indicated, the utilization rate of the porous plate 2 is not high, the mineral materials in the collecting hopper 17 are conveyed back to the first hopper 13, the second-time scattering, vibration and scraper scraping operation is carried out, and the vacancy rate is reduced.

The distributing device of the embodiment is independent from the working table 1, and the movement of the porous plate 2 between the distributing device and the working table 1 is completed by manual movement.

The structure diagram of the sorting part device of the color sorting device of this embodiment is shown in fig. 4, the moving slide rail is disposed on the workbench 1, the moving slide rail includes a first slide rail 3, a second slide rail 4, a third slide rail 5 and a fourth slide rail 6, the first slide rail 3 and the second slide rail 4 are parallel to each other and are respectively disposed at two sides of the workbench 1, the third slide rail 5 is disposed above the first slide rail 3 and the second slide rail 4 and is perpendicular to the first slide rail 3 and the second slide rail 4, the fourth slide rail 6 is connected to the third slide rail 5 and is perpendicular to both the first slide rail 3 and the third slide rail 5, that is, the first slide rail 3, the third slide rail 5 and the fourth slide rail 6 are respectively in the three-dimensional directions of the spaces perpendicular to each other.

The first slide rail 3 is connected with a first slide block 301, the second slide rail 4 is connected with a second slide block 401, the first slide block 301 is connected with a third slide rail 5 through a first fixed connecting rod 302, the second slide block 401 is connected with the third slide rail 5 through a second fixed connecting rod 402, and the first fixed connecting rod 302 and the second fixed connecting rod 402 are identical in length, so that the third slide rail 5 is parallel to the horizontal plane. When the sliding device is used, the first sliding block 301 and the second sliding block 401 move synchronously, and the third sliding rail 5 is ensured to be perpendicular to the first sliding rail 3 all the time.

The third slide rail 5 is fixedly connected with the fourth slide rail 6 through a third slide block 501, and the third slide block 501 is connected with the third slide rail 5 and can move on the third slide rail 5. The fourth slide rail 6 is fixed on the third slide block 501 and can move along the third slide rail 5 with the third slide block 501.

The fourth slider 601 is connected to the fourth slide rail 6 and can move along the fourth slide rail 6. The first slide block 301, the second slide block 401, the third slide block 501 and the fourth slide block 601 are connected with the control device 18 through the transmission chain 7.

The mineral collecting device 8 is fixed on the fourth slide 601 and can move along the fourth slide 6 with the fourth slide 601. In this way, the mineral collection device 8 can move to any position in the three-dimensional space through the first slide rail 3, the second slide rail 4, the third slide rail 5 and the fourth slide rail 6, and can move to any position of the lower porous plate 2 to suck mineral particles.

The structure of the mineral collection apparatus 8 is shown in fig. 5, the mineral collection apparatus 8 comprises an inner pipe 801 and a sleeve 802, the inner pipe 801 has an inner diameter of 1mm, an outer diameter of 2mm and a length of 50mm, the sleeve 802 has an inner diameter of 10mm, an outer diameter of 12mm and a length of 100mm, and the upper portion of the inner pipe 801 extends into the lower portion of the sleeve 802 to a length of 25 mm. The inner pipe 801 is fixedly connected with the sleeve 802, and the air tightness of the connection part is good. The top end and the tail end of the inner pipe 801 are respectively provided with an upper opening and a lower opening, and ore particles on the porous plate 2 enter the inner pipe 801 from the lower opening and then leave the inner pipe 801 from the upper opening and fall into the sleeve 802. The bottom of the casing 802 is closed, and the opening at the top is provided with a screen 803 and connected to a pressure device to prevent the ore particles sucked into the casing 802 from entering the pressure device. When the bottom of the casing 802 has more mineral particles accumulated, the casing 802 and the pressure device are disassembled, and the mineral particles in the casing 802 are removed.

The material of inner tube 801 and sleeve pipe 802 is transparent glass, is convenient for observe the motion condition after the mineral grain inhales mineral collection device 8, prevents that inner tube 801 from blockking up to in time clear up the interior mineral grain of accumulating of sleeve pipe 802.

The mineral collection device 8 and the included angle with the horizontal plane are 45 degrees, and the mineral collection device 8 is fixed on the fourth sliding block 601 through a rotatable clamping position, so that the inclination angle of the mineral collection device 8 can be manually adjusted. After entering the casing 802 from the upper opening of the inner tube 801, mineral particles fall vertically under the action of gravity, and when the inner tube 801 and the casing 802 are inclined, the mineral particles fall vertically on the wall of the casing 802 and then slide to the bottom of the casing 802 without falling into the inner tube 801, so that the sucked mineral particles are prevented from falling out of the inner tube 801 again.

The top opening of the sleeve 802 of the mineral collection device 8 is connected with a vacuum device 11 through a gas path 9, the gas path 9 is provided with a gas pressure regulating valve 10, and the vacuum device 11 provides negative pressure for the mineral collection device 8 to absorb ore particles on the porous plate 2. The vacuum device 11 and the air pressure regulating valve 10 are connected with the control device 18 through a line, when the mineral collecting device 8 moves to the position of the ore particles needing to be separated and sucked, the control device 18 controls the pressure device to provide negative pressure to suck the ore particles, and after the suction is completed, the supply of the negative pressure is stopped, and the mineral collecting device 8 is waited to move and needs to suck the ore particles again.

The first camera device 12 is mounted on the third slide 501, is located above the perforated plate 2, and is connected to the control device 18 through a line. Before mineral collection device 8 absorbs the ore grain, first camera device 12 is shot to all holes 201 and the ore grain of perforated plate 2, controlling means 18's photoelectric recognition and signal processing transmission system are to image information transmission, analysis and processing, select the procedure through the start-up look, to the point-by-point analysis of image, count to the ore grain that has the colour difference, realize the ration function, the concrete position of the ore grain that has the colour difference of while discernment record, realize the locate function, give electric control unit with signal transmission again, electric control unit control motion slide rail drives mineral collection device 8 and moves to the hole 201 of the ore grain that has the colour difference, absorb one by one, leave required mineral aggregate on perforated plate 2, finally realize the sorting of single mineral.

The control device 18 is installed on the third slider 501, and includes a photoelectric recognition and signal processing and transmitting system, an electric control device, and a built-in color selection program and a control program. The photoelectric recognition and signal processing transmission system is connected with and controls the first camera device 12 and the second camera device 1304 to recognize and process image information; the photoelectric recognition and signal processing transmission system is connected with and controls the photoelectric sensor 1302 and the controller 1303, recognizes and processes photoelectric signals, performs recognition analysis on the multistage sieve plates 1301, and judges that the sieve plates 1301 for discharging should be opened.

The color sorting program and the control program are main control software of the control device, and the color sorting program analyzes the images obtained by the first camera device 12 and the second camera device 1304 point by point, quantifies the purity of the mineral aggregate and positions mineral grains with different colors; the control program controls the air pressure regulating valve 10 to further determine the time for sucking the ore particles, and the control program also controls the electric control device and sends a motion instruction to the electric control device according to the program for sorting the ore particles.

The electric control device controls the moving parts of the color sorting device, and the electric control device enables the mineral collecting device 8 to accurately position mineral materials to be sorted by controlling the movement of the first slide block 301, the second slide block 401, the third slide block 501 and the fourth slide block 601; the electronic control means may also control the amplitude and inclination of the vibrating means 16, control the movement of the scrapers 14, control the displacement of the first hopper 13, control the opening and closing of the screen 1301.

The color selection device of the embodiment uses an external power supply.

Example 2

The vibrating device of the color sorting device for single mineral sorting of the embodiment is not provided with the scraper 14 and the scraper slide rail 15, and the redundant mineral particles fall into the collecting hopper 17 through the vibration of the inclined porous plate 2. The sieve plate 1301, the photoelectric sensor 1302 and the controller 1303 are not arranged in the first hopper 13, and after the original ore particles are finely sieved through manual operation, the original ore particles are spread on the porous plate 2 through the first hopper 13.

Other structures of the color selection device of the present embodiment are the same as those of the color selection device of embodiment 1.

Example 3

The distributing device for single mineral sorting's look selection device of this embodiment includes first hopper 13 and second hopper 19, do not establish the sieve in the second hopper 19, second hopper 19 sets up the next door at first hopper 13, negative pressure gas circuit and the top entry connection of second hopper 19 are passed through to the bottom of collecting hopper 17, when the vacancy rate of perforated plate 2 is greater than the default, the mineral aggregate that will fall into collecting hopper 17 is retrieved second hopper 19 and is broadcast again on perforated plate 2, during the use, with vibrating device and perforated plate 2 manual movement to second hopper 19 below, wait for the secondary and broadcast.

Example 4

Five sieve plates 1301 are arranged in a first hopper 13 of the color sorting device used in the embodiment, the sieve plates are 42 meshes, 45 meshes, 48 meshes, 50 meshes and 60 meshes from top to bottom respectively, holes of a second porous plate are selected to correspondingly place 40-42 meshes of ore particles, the diameter of each hole is 0.42mm, the depth of each hole is 0.3mm, holes of a third porous plate are selected to correspondingly place 42-45 meshes of ore particles, the diameter of each hole is 0.35mm, the depth of each hole is 0.28mm, holes of a fourth porous plate are correspondingly placed 45-48 meshes of ore particles, the diameter of each hole is 0.32mm, the depth of each hole is 0.25mm, holes of a fifth porous plate are correspondingly placed 48-50 meshes of ore particles, the diameter of each hole is 0.30mm, the depth of each hole is 0.22mm, holes of a sixth porous plate are correspondingly placed 50-60 meshes of ore particles, the diameter of each hole is 0.27mm, and the depth of each hole, the other structure is the same as the color sorting apparatus of example 1, and the number of holes of the multi-well plate 2 is 1000.

The method comprises the following steps of sorting the duroniums by using a color sorting device, wherein main minerals of the duroniums comprise red garnet, green hectorite and a small amount of quartz, amphibole, spinel, olivine and other minerals.

Aiming at the color characteristics that red garnet in a sample is different from other minerals, a color sorting device is adopted for sorting, and the method comprises the following steps:

(1) coarsely crushing a sample to 1-2cm by using a jaw crusher, then crushing for 2 seconds by using a disc grinder, respectively sieving the crushed sample by using 40-mesh, 60-mesh and 80-mesh sieves, observing each particle size sample under binoculars, and observing that monomer dissociation of the garnet in the 40-60-mesh particle size is realized, so that the coarsely crushed sample is crushed to 40-60-mesh, and washing the 40-60-mesh sample with water and drying for later use;

(2) performing primary enrichment on the sample treated in the step (1) by using a magnetic separator, wherein the transverse inclination angle of the magnetic separator is 20 degrees, the current is 0.4A, at the moment, garnet is enriched at a magnetic mineral end, and a non-magnetic mineral end is mainly impurities such as quartz and the like;

(3) switching on a power supply, putting the garnet sample processed in the step (2) into the first hopper 13, and enabling the sample to pass through the multistage sieve plate 1301 in the first hopper 13 in the falling process;

(4) judging whether ore materials smaller than 60 meshes are removed or not through the photoelectric sensor 1302, and fixing the No. six porous plate 2 on the vibrating device 16;

(5) the 60-mesh sieve plate 1301 is opened under the control of the controller 1303, the samples on the 60-mesh sieve plate are spread on the six perforated plates 2 below, and simultaneously, one sample is placed in one hole 201 of each perforated plate 2 through the vibration of the vibration device 16;

(6) the scraper 14 moves from one end to the other end of the porous plate 2 along the scraper slide rail 15, scrapes off the sample which does not enter the hole 201 and the sample which is higher than the upper surface of the porous plate 2 because of being squeezed in the same hole, and falls into the collection hopper 17;

(7) the second camera device 1304 shoots the perforated plate 2, the vacancy rate of the holes of the perforated plate 2 is analyzed and calculated through the photoelectric recognition and signal processing transmission system, if the vacancy rate is more than 20%, the sample in the collecting hopper 17 is transported back to the first hopper 13, and the operations of the steps (3) to (6) are carried out again;

(8) when the vacancy rate of the holes of the porous plate 2 is less than 20%, the porous plate 2 is placed on the workbench 1, the upper surface of the porous plate 2 is photographed by the first camera device 12, and the sample purity and the ore particles to be sorted are analyzed and calculated through a photoelectric recognition and signal processing transmission system and a color sorting program;

(9) the first camera device 12 takes pictures of all holes 201 and ore particles of the porous plate 2, the photoelectric recognition and signal processing transmission system of the control device 18 transmits, analyzes and processes image information, counts ore particles with color differences, recognizes specific positions of the ore particles with the color differences, and transmits signals to the electric control device;

(10) the mineral collecting device 8 moves to the position of mineral particles to be sorted through the first slide rail 3, the second slide rail 4, the third slide rail 5 and the fourth slide rail 6, and meanwhile, the inclination angle of the mineral collecting device 8 is adjusted to be 45 degrees;

(11) the pressure device provides negative pressure for the mineral collecting device 8, absorbs mineral particles to be sorted, then stops providing negative pressure and waits for next absorption;

repeating the steps (10) and (11) until all ore particles needing to be sorted on the porous plate 2 are sucked by the ore collecting device 8;

(12) the sample left on the perforated plate 2 is collected, namely the 50-60-mesh single-mineral garnet, and the purity reaches 99.6%.

(13) Fixing a No. five porous plate 2 on a vibration device 16, opening a 50-mesh sieve plate 1301 and a sieve plate 1301 below the 50-mesh sieve plate under the control of a respective controller 1303, spreading a sample on the porous plate 2 below, and simultaneously placing a sample in one hole 201 of the porous plate 2 through the vibration of the vibration device 16;

repeating the steps (6) - (11), and collecting the sample left on the five-hole plate 2, namely the 48-50-mesh single-mineral garnet with the purity reaching 99.7%;

(14) fixing a fourth porous plate 2 on a vibrating device 16, opening a 48-mesh sieve plate 1301 and a lower sieve plate 1301 under the control of a respective controller 1303, spreading a sample on the lower fourth porous plate 2, and placing a sample in one hole 201 of the fourth porous plate 2 by the vibration of the vibrating device 16;

repeating the steps (6) - (11), and collecting the sample left on the four-hole plate 2, namely the 45-48-mesh single-mineral garnet, wherein the purity reaches 99.7%;

(15) fixing a third porous plate 2 on a vibrating device 16, opening a 45-mesh sieve plate 1301 and a sieve plate 1301 below the 45-mesh sieve plate under the control of respective controllers 1303, spreading a sample on the lower third porous plate 2, and simultaneously placing a sample in one hole 201 of the third porous plate 2 through the vibration of the vibrating device 16;

repeating the steps (6) - (11), and collecting the sample left on the third porous plate 2, namely 42-45-mesh single-mineral garnet, wherein the purity reaches 99.6%;

(16) fixing a second porous plate 2 on a vibrating device 16, opening a 42-mesh sieve plate 1301 and a lower sieve plate 1301 under the control of a respective controller 1303, spreading a sample on the lower second porous plate 2, and placing a sample in one hole 201 of the second porous plate 2 by the vibration of the vibrating device 16;

and (5) repeating the steps (6) to (11), and collecting the sample remained on the second porous plate 2, namely the single-mineral garnet with the size of 40-42 meshes, wherein the purity reaches 99.8%.

Example 5

Two sieve plates 1301 are arranged in a first hopper 13 of the color sorting device used in the embodiment, the sieve plates are respectively 50 meshes and 60 meshes from top to bottom, 50-60 meshes of ore particles are correspondingly placed in holes of a six-number porous plate, the diameter of each hole is 0.27mm, the depth of each hole is 0.20mm, other structures of the holes are the same as those of the color sorting device used in the embodiment 1, and the number of the holes of the porous plate 2 is 1000. The granite is sorted by using a color sorting device, and the main minerals of the granite comprise colorless transparent quartz, light meat red potash feldspar and white grey plagioclase feldspar, and a small amount of biotite, amphibole and other minerals.

Aiming at the color characteristics that light flesh red potassium feldspar in a sample is different from other minerals, a color sorting device is adopted for sorting, and the method comprises the following steps:

(1) coarsely crushing a sample to 1-2cm by using a jaw crusher, then crushing for 2 seconds by using a disc grinder, respectively sieving the crushed sample by using 40-mesh, 50-mesh, 60-mesh and 80-mesh sieves, observing each size fraction sample under binoculars, and observing that the potassium feldspar realizes monomer dissociation in the 50-60-mesh size fraction, so that the coarsely crushed sample is crushed to 50-60-mesh, washing the 50-60-mesh sample with water, and drying for later use;

(2) performing primary enrichment on the sample treated in the step (1) by using a magnetic separator, wherein the transverse inclination angle of the magnetic separator is 20 degrees, the current is 0.8A, dark minerals such as biotite, amphibole and the like are collected at a magnetic mineral end, and a non-magnetic mineral end is mainly potash feldspar;

(3) switching on a power supply, putting the potassium feldspar sample treated in the step (2) into a first hopper 13, and enabling the sample to pass through a multi-stage sieve plate in the first hopper 13 in the falling process;

(5) the sieve plate 1301 of 60 meshes is opened under the control of the controller 1303, the sample is spread on the lower multi-well plate 2, and a sample is placed in one hole 201 of the six-mesh multi-well plate 2 through the vibration of the vibration device 16;

(10) the mineral collecting device 8 moves to the position of mineral particles to be sorted through the first slide rail 3, the second slide rail 4, the third slide rail 5 and the fourth slide rail 6, and meanwhile, the inclination angle of the mineral collecting device 8 is adjusted to be 50 degrees;

(11) the pressure device provides negative pressure for the mineral collecting device 8, absorbs mineral particles to be sorted, then stops the negative pressure and waits for the next absorption;

(12) the sample left on the porous plate 2 is collected, namely the monomineral potassium feldspar with 50-60 meshes, and the purity reaches 99.6%.

Example 6

The inside three sieve plates 1301 that set up of look selection device's that this embodiment used first hopper 13, from the top down is 65 meshes, 70 meshes and 80 meshes respectively, selects the hole of No. seven perforated plate to correspond and places 60-65 mesh ore particles, and the hole diameter is 0.27mm, and the depth is 0.19mm, and the hole of No. eight perforated plate corresponds and places 65-70 mesh ore particles, and the hole diameter is 0.23mm, and the depth is 0.16mm, and the hole of No. nine perforated plate corresponds and places 70-80 mesh ore particles, and the hole diameter is 0.21mm, and the depth is 0.13mm, and other structures are the same with the look selection device of embodiment 1, and the hole quantity of perforated plate 2 is 1000. And (3) sorting the pyrite type quartz sandstone by using a color sorting device, wherein the main minerals of the pyrite type quartz sandstone comprise quartz and feldspar and contain a small amount of pyrite.

Aiming at the color characteristics that light brass pyrite in a sample is different from other minerals, a color sorting device is adopted for sorting, and the method comprises the following steps:

(1) coarsely crushing the sample to 1-2cm by using a jaw crusher, then crushing for 2 seconds by using a disc grinder, respectively sieving the crushed sample by using sieves of 40 meshes, 50 meshes, 60 meshes, 80 meshes and 90 meshes, observing each size fraction sample under binoculars, and observing the sample under the binoculars, wherein the monomer dissociation of the pyrite at the size fraction of 60-80 meshes is realized, so that the coarsely crushed sample is crushed to 60-80 meshes;

(2) performing primary enrichment on the sample treated in the step (1) by adopting a shaking table, wherein pyrite is enriched at a heavy mineral end, a light mineral end is quartz and feldspar, and drying the sample after the pyrite is enriched for later use;

(3) switching on a power supply, putting the sample processed in the step (2) into a first hopper 13, and enabling the sample to pass through a multi-stage sieve plate in the first hopper 13 in the falling process;

(4) judging whether ore materials smaller than 80 meshes are removed or not through the photoelectric sensor 1302, and fixing a No. nine porous plate 2 on the vibrating device 16;

(5) the 80-mesh sieve plate 1301 is opened under the control of the controller 1303, the sample is spread on the nine-mesh porous plate 2 below, and simultaneously, a sample is placed in one hole 201 of the nine-mesh porous plate 2 through the vibration of the vibration device 16;

(8) when the vacancy rate of the holes of the porous plate 2 is less than 20%, the eighth porous plate 2 is placed on the workbench 1, the first camera device 12 shoots the upper surface of the porous plate 2, and the sample purity and the ore particles to be sorted are analyzed and calculated through a photoelectric recognition and signal processing transmission system and a color sorting program;

(12) the sample left on the perforated plate 2 is collected, namely the single mineral pyrite with 70-80 meshes, and the purity reaches 99.7%.

According to the method, the eight porous plate 2 and the seven porous plate 2 are respectively used for sorting to obtain 65-70-mesh and 60-65-mesh single-mineral pyrite, and the purities respectively reach 99.8% and 99.7%.

Finally, it should be noted that: the above embodiments are only used to illustrate the technical solution of the present invention, and not to limit the same; while the invention has been described in detail and with reference to the foregoing embodiments, it will be understood by those skilled in the art that: the technical solutions described in the foregoing embodiments may still be modified, or some or all of the technical features may be equivalently replaced; and the modifications or the substitutions do not make the essence of the corresponding technical solutions depart from the scope of the technical solutions of the embodiments of the present invention.

Claims

1. A color sorting device for sorting single minerals is characterized by comprising at least one perforated plate, a material distribution device, a mineral collection device, a moving slide rail, a pressure device, a first camera device and a control device, wherein the material distribution device comprises at least one hopper and a vibration device, and the hopper is arranged above the vibration device; when distributing materials, the porous plate is fixed at the top of the vibrating device, and the vibrating device drives the porous plate to vibrate in a three-dimensional direction, so that the effect of placing one ore particle in one hole in the porous plate is realized; during sorting, the porous plate is fixed on the workbench, and the first camera device is arranged above the porous plate; the mineral collecting device is fixedly connected to the moving slide rail and moves in the three-dimensional direction of the space by means of the moving slide rail, the moving slide rail is arranged on the workbench, the pressure device is connected with the top of the mineral collecting device through a gas path and provides negative pressure for the mineral collecting device, so that mineral particles on the porous plate are sucked into the mineral collecting device from the bottom end of the mineral collecting device; the control device comprises a photoelectric recognition and signal processing transmission system and is connected with and controls the material distribution device, the mineral collection device, the moving slide rail, the pressure device and the first camera device through lines;

the mineral collecting device comprises an inner pipe and a sleeve, the outer diameter of the inner pipe is smaller than the inner diameter of the sleeve, the middle upper part of the inner pipe extends into the middle lower part of the sleeve, and the inner pipe is fixedly connected with the sleeve; the top end and the tail end of the inner pipe are respectively provided with an upper opening and a lower opening, and the ore particles on the porous plate enter the inner pipe from the lower opening, then leave the inner pipe from the upper opening and fall into the sleeve; the bottom of the sleeve is closed, and the top opening of the sleeve is connected with the pressure device.

2. The color sorting device according to claim 1, wherein the distributing device comprises a collecting hopper, the collecting hopper is arranged below the vibrating device and used for collecting mineral materials falling from the porous plate, and the vibrating device is detachably and fixedly connected with the porous plate.

3. The color selection device according to claim 1, wherein at least one layer of screen plate is arranged in the hopper, and the screen plate is arranged in an angle of 40-90 degrees with the central axis of the hopper.

4. The color selection device according to claim 3, wherein the number of the screen plates is 2-10, different screen plates have different mesh numbers, and the screen plates are sequentially arranged in the hopper from top to bottom according to the order of the mesh numbers from small to large;

each sieve plate is provided with a controller, and the controller is connected with the control device through a line and can control the corresponding sieve plate to be opened and closed.

5. The color sorting device according to claim 4, wherein a photoelectric sensor is arranged on the inner wall of the hopper, the photoelectric sensor is arranged on the inner wall of the hopper below the screen plate on the lowest layer and used for sensing whether mineral materials fall from the screen plate above, and the photoelectric sensor is connected with the control device through a line.

6. The color selection device of claim 1, wherein the upper surface of the porous plate has recessed holes, and all holes of the same porous plate have the same diameter and depth.

7. The color selection device according to claim 5, wherein the moving slide rail comprises a first slide rail, a second slide rail, a third slide rail and a fourth slide rail, the first slide rail and the second slide rail are parallel to each other and are respectively arranged at two sides of the workbench, the third slide rail is arranged above the first slide rail and the second slide rail and is perpendicular to the first slide rail and the second slide rail, the fourth slide rail is connected to the third slide rail and is perpendicular to both the first slide rail and the third slide rail, and the third slide rail and the fourth slide rail are arranged above the workbench;

the first slide rail is connected with a first slide block, the second slide rail is connected with a second slide block, the first slide block is connected with a third slide rail through a first fixed connecting rod, the second slide block is connected with a third slide rail through a second fixed connecting rod, and the first fixed connecting rod and the second fixed connecting rod are the same in length, so that the third slide rail is parallel to the horizontal plane;

the third slide rail is fixedly connected with a fourth slide rail through a third slide block, and the third slide block is connected with the third slide rail and can move on the third slide rail; the fourth sliding rail is fixed on the third sliding block and can move along the third sliding rail along with the third sliding block;

the fourth sliding block is connected to the fourth sliding rail and can move along the fourth sliding rail; and the mineral collecting device is fixed on the fourth sliding block and can move along the fourth sliding rail along with the fourth sliding block.

8. The color selection apparatus according to claim 1, wherein the mineral collection apparatus is inclined and has an angle of 30-50 degrees with a horizontal plane;

and a screen is arranged at the opening at the top of the sleeve to prevent ore particles sucked into the sleeve from entering the pressure device.

9. The color selection device according to claim 7, wherein the control device comprises a photoelectric recognition and signal processing transmission system, an electric control device, and a built-in color selection program and control program, the photoelectric recognition and signal processing transmission system is connected with and controls the first camera device to recognize and process image information, the photoelectric recognition and signal processing transmission system is connected with and controls the photoelectric sensor and the controller to recognize and process photoelectric signals, and performs recognition analysis on the multi-stage screen plate to determine that the screen plate for discharging should be opened;

the color sorting program analyzes the images acquired by the first camera device point by point, quantifies the purity of the mineral aggregate and positions mineral grains with different colors;

the electric control device controls the movement of the first sliding block, the second sliding block, the third sliding block and the fourth sliding block, and controls the vibrating device and the sieve plate.