CN114798452A - Material sorting system and sorting method - Google Patents
Material sorting system and sorting method Download PDFInfo
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- CN114798452A CN114798452A CN202210413443.8A CN202210413443A CN114798452A CN 114798452 A CN114798452 A CN 114798452A CN 202210413443 A CN202210413443 A CN 202210413443A CN 114798452 A CN114798452 A CN 114798452A
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- B—PERFORMING OPERATIONS; TRANSPORTING
- B07—SEPARATING SOLIDS FROM SOLIDS; SORTING
- B07C—POSTAL SORTING; SORTING INDIVIDUAL ARTICLES, OR BULK MATERIAL FIT TO BE SORTED PIECE-MEAL, e.g. BY PICKING
- B07C5/00—Sorting according to a characteristic or feature of the articles or material being sorted, e.g. by control effected by devices which detect or measure such characteristic or feature; Sorting by manually actuated devices, e.g. switches
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- B—PERFORMING OPERATIONS; TRANSPORTING
- B07—SEPARATING SOLIDS FROM SOLIDS; SORTING
- B07C—POSTAL SORTING; SORTING INDIVIDUAL ARTICLES, OR BULK MATERIAL FIT TO BE SORTED PIECE-MEAL, e.g. BY PICKING
- B07C5/00—Sorting according to a characteristic or feature of the articles or material being sorted, e.g. by control effected by devices which detect or measure such characteristic or feature; Sorting by manually actuated devices, e.g. switches
- B07C5/02—Measures preceding sorting, e.g. arranging articles in a stream orientating
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- B—PERFORMING OPERATIONS; TRANSPORTING
- B07—SEPARATING SOLIDS FROM SOLIDS; SORTING
- B07C—POSTAL SORTING; SORTING INDIVIDUAL ARTICLES, OR BULK MATERIAL FIT TO BE SORTED PIECE-MEAL, e.g. BY PICKING
- B07C5/00—Sorting according to a characteristic or feature of the articles or material being sorted, e.g. by control effected by devices which detect or measure such characteristic or feature; Sorting by manually actuated devices, e.g. switches
- B07C5/36—Sorting apparatus characterised by the means used for distribution
- B07C5/363—Sorting apparatus characterised by the means used for distribution by means of air
- B07C5/367—Sorting apparatus characterised by the means used for distribution by means of air using a plurality of separation means
- B07C5/368—Sorting apparatus characterised by the means used for distribution by means of air using a plurality of separation means actuated independently
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Abstract
The application provides a material sorting system and a sorting method, which comprise the following steps: the material distribution device is used for conveying materials; the identification device is used for identifying the material information of the material on the material distribution device; the sorting device is used for sorting the materials according to the material information and comprises at least one injection valve which is positioned on the lower side of the mineral motion track and used for injecting the materials; the receiving device comprises at least one chute and a receiving device, wherein the chute is used for accommodating the sorted materials of at least two types; and the auxiliary sorting device is arranged above the at least two chutes and is used for conveying the materials falling on the auxiliary sorting device to the chutes on one side, far away from the distributing device, of the at least two chutes.
Description
Technical Field
The application relates to the technical field of material sorting, in particular to a material sorting system and a sorting method.
Background
Along with the increasing emphasis on dry coal separation, the intelligent dry separation technology is developed, and is an intelligent automatic separation technology for coal gangue based on ray, spectral analysis or image recognition. The intelligent dry separation technology has the advantages of no water, simple process, less investment and low production cost.
When carrying out three product and select separately, for example when high-quality mineral, medium-quality mineral and low-quality mineral, the air nozzle through different jetting dynamics jets the mineral of different article types and selects separately, in order to improve the precision, need set up the difference between the jetting dynamics obviously, jetting pressure is big more, and the ore movement distance is far away more, and corresponding second product, third product chute need be very wide, have caused the sorting chamber structure huge, and complete machine length increases, and area is big.
In the prior art, for example, chinese patent application 201710082748.4 discloses an intelligent dry separator for three products, which uses different blowing energies to blow materials, so that different types of materials enter different chutes, and three products are separated. The different of the blowing energy is realized by one or more modes of selecting high-frequency electromagnetic valves and air nozzles with large specifications, increasing or decreasing the number of the high-frequency electromagnetic valves and the air nozzles, increasing or decreasing the time for opening the high-frequency electromagnetic valves and the air nozzles and increasing or decreasing the blowing pressure.
However, when sorting materials of the same category, if the blowing force is controlled completely to sort materials with different shapes or different qualities, the probability of wrong sorting is very high. In addition, when sorting, the blowing force also needs to be accurately and inerrably controlled, and when the performance of the blowing mechanism is reduced or the air supply pressure fluctuates, the blown materials easily enter other sorting areas or product chutes, so that the materials are mistakenly sorted.
Disclosure of Invention
In view of the above-mentioned drawbacks and deficiencies of the prior art, it is desirable to provide a material sorting system and method that can improve sorting accuracy and reduce floor space.
In a first aspect, the present application provides a material sorting system comprising:
the material distribution device is used for conveying materials;
the identification device is used for identifying the material information of the material on the material distribution device;
the sorting device is used for sorting the materials according to the material information and comprises at least one injection valve which is positioned on the lower side of the mineral motion track and used for injecting the materials;
the receiving device comprises at least two chutes for accommodating the sorted materials of at least two categories;
and the auxiliary sorting device is arranged above the at least two chutes and is used for conveying the materials falling on the auxiliary sorting device to the chutes on one side, far away from the distributing device, of the at least two chutes.
Optionally, the spray valve includes a first spray valve and a second spray valve for sorting the material into three categories, and the first spray valve is disposed on a side of the second spray valve close to the distributing device.
Optionally, the first spray valve includes a plurality of first nozzles arranged in a width direction array of the material distribution device, and the second spray valve includes a plurality of second nozzles arranged in a width direction array of the material distribution device.
Optionally, the blowing pressure of the first nozzle is 0.5 to 0.75 MPa; the blowing pressure of the second nozzle is 0.5MPa to 0.75 MPa.
Optionally, the receiving device comprises a first chute close to one side of the distributing device, a second chute at the middle position and a third chute far away from one side of the distributing device.
Optionally, receiving device is including being used for the interval to form No. one the chute with No. two the first baffle of chute, be used for the interval to form No. two the chute with No. three the second baffle of chute and being located No. three the third baffle of chute one side, the height of first baffle, second baffle, third baffle increases in proper order.
Optionally, the auxiliary sorting device is arranged on the second partition board, the auxiliary sorting device is used for conveying the materials falling on the auxiliary sorting device into the chute III, and the orthographic projection of the auxiliary sorting device on the horizontal plane is partially overlapped with the orthographic projection of the chute II on the horizontal plane.
Optionally, the auxiliary sorting device is one or more of a horizontally arranged conveying belt, an obliquely arranged conveying belt and an angled sliding plate.
Optionally, the auxiliary sorting device is arranged obliquely, and the auxiliary sorting device is inclined downwards in a direction away from the distributing device.
In a second aspect, the present application provides a method of sorting material, using a system as described in any one of the above, the method comprising:
identifying the material information of the material on the material distribution device through the identification device in the material conveying process;
when the materials fall to the blowing position corresponding to the at least one blowing valve from the material distribution device, the sorting device sorts the materials into at least two types by controlling the at least one blowing valve to blow according to the material types corresponding to the material information.
The technical scheme provided by the embodiment of the application can have the following beneficial effects:
according to the mineral separation system provided by the embodiment of the application, the auxiliary separation device is additionally arranged between the chute and the chute, so that the occupied area of each chute is reasonable, and the separation chamber is reasonable in structure; the mineral is sprayed through the spraying valve arranged on the lower side of the mineral movement track, so that the flying track of the mineral enters the chute in a mode of ascending first and then descending, and the sorting precision is improved.
Drawings
Other features, objects and advantages of the present application will become more apparent upon reading of the following detailed description of non-limiting embodiments thereof, made with reference to the accompanying drawings in which:
fig. 1 is a schematic structural diagram of a material sorting system according to an embodiment of the present application;
FIG. 2 is a top view of a material sorting system according to an embodiment of the present application;
FIG. 3 is a schematic diagram illustrating forces exerted on a material when the material is blown by a first injection valve and a second injection valve according to an embodiment of the present application;
fig. 4 is a schematic structural diagram of a spray valve provided in an embodiment of the present application;
FIG. 5 is a schematic diagram of another material sorting system provided by an embodiment of the present application;
fig. 6 is a flowchart of a material sorting method according to an embodiment of the present application.
Detailed Description
The present application will be described in further detail with reference to the following drawings and examples. It is to be understood that the specific embodiments described herein are merely illustrative of the relevant invention and not restrictive of the invention. It should be noted that, for convenience of description, only the portions related to the present invention are shown in the drawings.
It should be noted that the embodiments and features of the embodiments in the present application may be combined with each other without conflict. The present application will be described in detail below with reference to the embodiments with reference to the attached drawings.
Referring to fig. 1-2, a material sorting system includes:
a distributing device 100 for conveying materials;
the identification device 200 is used for identifying the material information of the material on the material distribution device;
a sorting device 300 for sorting the material according to the material information, the sorting device comprising at least one injection valve located at the lower side of the mineral movement trajectory for injecting the material;
the receiving device 400 includes at least two chutes for receiving the sorted materials of at least two categories.
And the auxiliary sorting device 500 is arranged above the at least two chutes and is used for conveying the materials falling on the auxiliary sorting device to the chute, which is far away from one side of the distributing device, of the at least two chutes.
In the embodiment of the application, the material sorting system can be used for mineral sorting, food sorting, garbage sorting and the like, material information of materials to be sorted is identified through the identification device, the materials are divided into multiple categories based on the material information, and different categories in the materials are sorted through the sorting device; the sorting device in the application comprises at least one spray valve, and sorting of at least two types of materials can be realized through the at least one spray valve. In this application, the elevation angle of the injection valve refers to the angle between the injection angle of the injection valve and the horizontal direction.
It should be noted that, in the embodiment of the present application, the material may be classified into multiple categories based on the material information, and during specific classification, there may be different classification manners according to different sorting requirements. The material category can be classified according to shape and size, density, material content and the like, and the application does not limit the material category.
For example, for minerals, it can be divided into metallic minerals and non-metallic minerals, the metallic minerals including ferrous metals and non-ferrous metals; such as iron, manganese, chromium, and the like; non-ferrous metal ores such as copper, lead, zinc, aluminum, tin, molybdenum, nickel, antimony, tungsten, and the like. The nonmetallic minerals include most of oxygen-containing salt minerals and partial oxide and halide minerals, such as diamond, crystal, ice stone, boron, tourmaline, mica, topaz, corundum, graphite, gypsum, asbestos, fuel minerals, etc.
When classifying the material types, the material types include different types of metals, different grades, different chemical components, and the like. In the examples below of the present application, mineral sorting is exemplified. The mineral categories are classified into three categories according to the difference of specific metal content, including high-grade mineral (with the highest specific metal content), medium-grade mineral (with the middle specific metal content) and low-grade mineral (with the lowest specific metal content). Further, in the following embodiments of the present application, a case where the material sorting system includes two injection valves (the first injection valve 10 and the second injection valve 20) to classify mineral products into three categories (for example, high grade minerals, medium grade minerals, and low grade minerals) is exemplified.
In addition, the identification devices may be different based on the type of the sorted material and the type of the material to be sorted. In addition, different identification means may also be used in combination.
For example, when the material types are divided based on different shapes and sizes, the material types can be divided by identifying the shape information of the material by adopting an image identification system; for example, based on the difference of metal types, an X-ray system can be adopted to classify the material types by identifying the metal components in the material; of course, an X-ray system may also be used to identify the shape of the material, etc. In the identification method for the material information, various methods known in the prior art can be adopted, and the detailed description is not provided herein.
In application, the distribution device 100 may be one or a combination of horizontally arranged conveyor belts, obliquely arranged conveyor belts, and angled slide plates. Different types of material with different particle sizes are distributed on the distributing device 100 in the length direction and the width direction, and since the conveyor belt has a certain running speed, different materials are scattered on the conveyor belt and are thrown out of the conveyor belt to perform a flat throwing motion when being conveyed to the end position through the conveyor belt.
It should be noted that, in the present embodiment, the horizontally arranged conveying belt is used for exemplary illustration, and of course, in other embodiments, different forms of material distribution devices may be selected according to different application scenarios.
The recognition apparatus 200 may include: an image recognition system and/or an X-ray system. Wherein the X-ray system may be composed of an X-ray source and an X-ray detector. The image recognition system may be comprised of a camera and a light source. The X-ray system can be used for acquiring the type of the material, and the image recognition system can be used for acquiring the size and shape of the material. Of course, in other embodiments, the size fraction of the material may be obtained by using an X-ray system, or the shape feature of the material may be obtained by using other identification devices 200, which is not limited in this application.
In the present embodiment, an example in which the recognition device 200 is an X-ray system will be described. The X-ray system is used for identifying metal components in minerals, and the minerals are divided into high-grade minerals, medium-grade minerals and low-grade minerals according to different contents of the metal components. For example, the iron ore comprises siderite, hematite and magnetite according to the iron content of the three materials, and the density of the siderite is 3.8-3.9 g/cm 3 The density of the hematite is 3.4-4.4 g/cm 3 The density of the magnetite is 4.9-5.2 g/cm 3 And then identify one or both of the three according to the identification device 200 (e.g. the gray-scale value of the X-ray image).
The shape of the mineral can also be identified by the X-ray system so that the sorting apparatus 300 can control the number of open nozzles on the spray valve according to the shape, projected area, etc. of the mineral. The materials of the same class of different shapes or different areas can be better sorted, so that the sorting precision is improved.
The sorting device 300 in the embodiment of the present application is located at the lower side of the motion trajectory of the material, and the motion trajectory of the material in the present application refers to the motion trajectory of the material after being thrown out from the distributing device, and the motion trajectory is approximately in the shape of a flat throwing line. In this embodiment, through setting up sorting unit in the downside of movement track, can exert the jetting power that tends to the direction of motion to the material, improve the influence of different jetting positions to sorting precision when reducing the energy consumption, improve sorting precision.
The sorting apparatus 300 includes at least a first nozzle 10 and a second nozzle 20 for sorting at least three products, for example, five nozzles may be used for sorting six kinds of materials. When the sorting is performed, the blowing pressure received by the material when the sorting is performed is different according to the shape of the material.
Correspondingly, the receiving device 400 comprises three chutes for accommodating three kinds of materials. For example, the receiving device 400 includes a first chute 1 near one side of the distributing device 100, a second chute 2 at the middle position, and a third chute 3 far from one side of the distributing device 100; wherein, chute 1, chute 2 and chute 3 are No. one and are divided the target of holding respectively. For example, the first chute 1 is used for containing siderite (first material), the second chute 2 is used for containing hematite (second material), and the third chute 3 is used for containing magnetite (third material).
In the present embodiment, the first spray valve 10 is disposed above the second spray valve 20, i.e., on the side close to the material distribution device 100. The first blowing position P1 of the first blowing valve 10 corresponding to the mineral motion track is higher than the second blowing position P2 of the second blowing valve 20 corresponding to the mineral motion track; the first spray valve 10 is used for the first sorting of minerals and the second spray valve 20 is used for the second sorting of minerals.
When the separation is carried out, the materials comprise a first material (siderite), a second material (hematite) and a third material (magnetite); the first injection valve 10 is used for injecting a third material to enable the third material to enter the third chute 3; the second injection valve 20 is used for injecting a second material, so that the second material enters the second chute 2; the first material not being blown by the second injection valve 20 enters chute 1.
Specifically, when the material moves, after passing through the first blowing position P1, if the material is identified as a third material by the identification device 200, the material is blown by the first blowing valve 10 and enters the third chute 3, and the third material is sorted; if the remaining two types of minerals are not subjected to the blowing sorting by the first blowing valve 10 and continue to fall to the second blowing position P2, if the second type of material is recognized and confirmed by the recognition device 200, the minerals are subjected to the blowing sorting through the second blowing valve 20 into the second chute 2. If the first material is the first material, the first material cannot be blown by the second spraying valve 20 and falls into the first chute 1.
The second spraying valve 20 is arranged at the lower side of the mineral movement track and sprays minerals from bottom to top, and after the second material is sprayed by the second spraying valve 20 and thrown from bottom to top, the second material continuously rises from a spraying point to the highest point and falls; when falling, the second type of material can hit the back of the auxiliary sorting device 500 and can also directly fall into the chute 2.
It should be noted that, in this application, the auxiliary sorting device 500 may be used to assist the sorting of the second-class material, and may realize the control of the sorting precision of the second-class material, for example, when the blowing force received by the second-class material is great, the flying of the second-class material may be intercepted by adjusting the back of the auxiliary sorting device, so as to improve the sorting precision of the second-class material.
For example, the blowing pressure of the first nozzle 11 is 0.5MPa to 0.75 MPa; the blowing pressure of the second nozzle 21 is 0.5MPa to 0.75 MPa. The first chute 1 is 1.2-2 m long and 0.8-1.5 m wide; the second chute 2 has a length of 1.2-2 m and a width of 0.8-1.5 m; the third chute 3 has a length of 1.2-2 m and a width of 0.8-1.5 m.
It should be noted that, in the embodiment of the present application, the first injection valve 10 is disposed on one side of the second injection valve 20 close to the distribution device 100, the injection position of the first injection valve 10 is higher than that of the second injection valve 20, the first injection valve 10 is used for injecting the third material into the No. three chute 3, and the second injection valve 20 is used for injecting the second material into the No. two chute 2; through the arrangement mode, when the mineral distribution density is high, the situation that the flying paths of the second material and the third material are crossed due to the fact that the blowing time of the first injection valve 10 is close to that of the second injection valve 20 is prevented, and therefore the probability of misselection is reduced.
As shown in fig. 3, it is assumed that the second and third types of materials have the same performance characteristics, e.g., the same weight and the same volume, except for the types. When the first blowing pressure F1 and the second blowing pressure F2 are the same, the second material is subjected to an upward component F1sin alpha 1, and the third material is subjected to an upward component F2sin alpha 2. Here, α 1 is an elevation angle of the second spray valve 20, α 2 is an elevation angle of the first spray valve 10, and α 1 > α 2. Because sin alpha 1 is more than sin alpha 2, the upward component force of the second material is greater than that of the third material, and the upward moving height of the second material is greater than that of the third material; the component force F1cos alpha 1 of the transverse movement borne by the second material, the component force F2cos alpha 2 of the transverse movement borne by the third material, the component force of the forward movement borne by the third material is larger than the component force of the forward movement borne by the second material, and the third material is thrown away.
In the embodiment of the present application, the elevation angle of the second spray valve 20 is set to be larger than the elevation angle of the first spray valve 10, on one hand, the elevation angle of the first spray valve 10 can be made smaller, so that the horizontal movement distance of the third material is farther, on the other hand, the elevation angle of the second spray valve 20 is increased, so that the vertical height of the second material is blown high, so that the included angle between the movement track of the second material and the partition plate (or the back of the auxiliary sorting device 500 on the partition plate) on the side of the second chute 2 far away from the distributing device is reduced, the included angle with the opening of the second chute 2 is substantially vertical incidence, the distance in the horizontal direction of the second chute 2 can be effectively reduced, that is, the size of the second chute 2 is effectively reduced, and meanwhile, the sorting accuracy of the second material is increased.
In the embodiment of the present application, the difference between the elevation angle of the second spray valve 20 and the elevation angle of the first spray valve 10 is in the range of 5 ° to 30 °. Preferably, the elevation angle of the second spray valve 20 is 40 ° to 60 °; the elevation angle of the first spray valve 10 is 20-40 deg. More preferably, the elevation angle of the second spray valve 20 is 45 ° and the elevation angle of the first spray valve 10 is 37 °. In the embodiment of the present invention, the separation of the third type and the second type of the material is improved by making the elevation angles of the first injection valve 10 and the second injection valve 20 different, so that the first injection valve 10 and the second injection valve 20 can use the air nozzles with the same specification and model and match the high-frequency electromagnetic valves with the same specification and model, and the blowing force of the first injection valve 10 and the second injection valve 20 does not need to be controlled, thereby significantly reducing the device cost and the control cost.
In the embodiment of the application, the elevation angles of the first injection valve 10 and the second injection valve 20 are controlled, so that materials injected through different injection valves enter different chutes. Compare in control jetting dynamics, make the area occupied of each chute rationalize through the mode of control angle of elevation, the sorting chamber is rational in infrastructure, and the jetting precision is higher, and the sorting precision improves. The blowing pressure is rationalized, the impact force between the material and the chute is avoided, and the loss is avoided.
It is known in the art that the greater the blowing pressure of an injection valve, the further away material is blown, but that the further away the material is blown during blowing, the more uncontrollable factors in the movement of the material, such as wind resistance, impact forces with the chute, etc. In the embodiment of the application, on the basis of not increasing the jetting pressure of unit area, the structural design of the jetting valve is improved, so that the sorting effect of different materials is improved under the jetting at different angles of the jetting valve.
Alternatively, as shown in fig. 4, the first spray valve 10 includes a plurality of first nozzles 11 arranged in an array in the width direction of the distribution device 100, and the second spray valve 20 includes a plurality of second nozzles 21 arranged in an array in the width direction of the distribution device 100.
The sorting device 300 may be provided with a solenoid valve corresponding to each spray valve, which communicates with a gas supply device (not shown), and the solenoid valve may be of a high frequency solenoid valve type. Each spray valve is communicated with a gas supply device through an electromagnetic valve, and compressed gas is filled in the gas supply device and is used for providing a gas source for the spray nozzles to spray materials of different types.
In the embodiment of the present application, by using a plurality of first nozzles 11 and a plurality of second nozzles 21, when materials with different shapes (such as size or size fraction) are corresponded, the control of the blowing pressure can be realized by adjusting the number of the first nozzles 11 and the second nozzles 21. For example, when the area of the material is large, the surface of the material can be blown by a large number of nozzles, when the area of the material is small, the surface of the material can be blown by a small number of nozzles, and the blowing distances (horizontal movement distances) of materials with different volumes and weights are maintained within a certain range.
In this application embodiment, first nozzle and second nozzle are all independent each other, and the orientation of the gaseous mutual noninterference of nozzle can both receive the jetting of corresponding nozzle and can not receive the jetting of other nozzles like this between the material that can make different, and influence its motion trajectory and then influence final sorting result. When the material is blown, the number of nozzles may be different for each material depending on the shape of the material.
In addition, when setting, as shown in fig. 5, the receiving device 400 includes a first partition plate 31 for forming the first chute 1 and the second chute 2 at an interval, a second partition plate 32 for forming the second chute 2 and the third chute 3 at an interval, and a third partition plate 33 located on one side of the third chute 3, and the heights of the first partition plate 31, the second partition plate 32, and the third partition plate 33 are sequentially increased.
The higher the chute size is, the higher the interception degree of the materials is, but in combination with the first injection valve 10 with the smaller elevation angle in the application, the materials are sorted into the farthest chute 3, the movement track of the materials is higher than that of the second injection valve 20 for injecting the materials, and therefore, the heights of the partition plates between every two chutes are sequentially increased along the movement track direction of the materials.
Through the baffle height of adjustment chute, can realize the control to sorting precision, for example, to second class material and No. two chutes 2 that correspond with second class material, when second class size fraction becomes less, can intercept the flight of second class material through the baffle height of adjustment chute, improve the sorting precision of second class material. In the embodiment of the application, the material size fraction which can be suitable is 30 mm-350 mm. In different embodiments, the separation of materials with different size fractions can be realized by adjusting the height of the partition plate.
In the embodiment of the present application, the auxiliary sorting apparatus 500 is one or more of a horizontally arranged conveyor belt, an obliquely arranged conveyor belt, and an angled slide plate. Different types of the auxiliary sorting apparatus 500 may be adopted according to different sorting effects, and the sorting effect of the obliquely arranged auxiliary sorting apparatus 500 is better than that of the horizontally arranged auxiliary sorting apparatus 500 when arranged.
For example, the auxiliary sorting apparatus 500 is arranged obliquely. When the auxiliary sorting apparatus 500 is disposed on the partition between the chute and the chute, the auxiliary sorting apparatus 500 is inclined downward in a direction away from the distribution apparatus 100. For the auxiliary sorting device 500 arranged between the second chute 2 and the third chute 3, the auxiliary sorting device 500 is used for conveying the third material falling on the auxiliary sorting device 500 to the third chute 3 at the lower end of the auxiliary sorting device 500, and the upper end of the auxiliary sorting device 500 is used for blocking the second material from entering the third chute 3. In the present embodiment, there is a partial overlap between the orthographic projection of the auxiliary sorting device 500 on the horizontal plane and the orthographic projection of the chute 2 No. two on the horizontal plane, and there is a partial overlap between the orthographic projection of the chute 3 No. three on the horizontal plane.
Through the mode that so slope set up, to the chute that is close to distributing device 100, be equivalent to the height that increases the baffle between chute and the chute, the back of projection overlap can block the material, to the chute of keeping away from distributing device 100, be equivalent to the size of increase chute, effectively reduce the area of chute, reduce jetting dynamics simultaneously, increase the sorting precision.
In the embodiment of the application, the auxiliary sorting device 500 is preferably arranged between the second chute 2 and the third chute 3, so that the effective area of the third chute 3 can be increased under the condition that the sizes of the second chute 2 and the third chute 3 are not changed, and in addition, the probability of wrong sorting caused by a sorting mode through different jetting pressures in the prior art can be reduced by arranging the auxiliary sorting device 500. Due to the irregular shapes of the minerals, when two minerals with the same mass and the same components are sprayed by the same high-pressure gas, the spraying force is different due to different irregular shapes, so different flight paths can be generated during spraying, and the probability of misselecting the minerals is improved.
When the auxiliary sorting device 500 is arranged obliquely, the direction of inclination is from the second chute 2 to the third chute 3, and the third material falling onto the auxiliary sorting device 500 can roll down into the third chute 3 under the action of the inclined surface, as shown in fig. 5. In addition, the auxiliary sorting device 500 above the second chute 2 can prevent the second material to be fed into the second chute 2 from being wrongly sorted into the third chute 3 through the inclined back surface.
In addition, in the present embodiment, there is no limitation on the size of the auxiliary sorting device 500, and in some embodiments, the overlapping area of the orthographic projection of the auxiliary sorting device 500 on the horizontal plane and the orthographic projection of the second chute 2 on the horizontal plane is larger than the overlapping area of the orthographic projection of the auxiliary sorting device 500 on the horizontal plane and the orthographic projection of the third chute 3 on the horizontal plane, wherein the part of the auxiliary sorting device 500 above the second chute 2 is used for blocking the second material class from entering the third chute 3; the front surfaces of the auxiliary sorting devices 500 are used for assisting a third class material to enter a third chute 3; at the time of installation, the length, the inclination angle, the size of the overlapping area, and the like of the auxiliary sorting device 500 are adjusted according to the sorting fraction, the blowing pressure, and the like.
In the embodiment of the application, the auxiliary sorting device 500 is arranged above the partition boards corresponding to the chute II 2 and the chute III 3, so that the first spray valve 10 is arranged at the lower side of the movement track of minerals to spray the minerals from bottom to top, and the third material is sprayed by the first spray valve 10 and drops after continuously rising from a spraying point to the highest point after being thrown from bottom to top; when falling, the third class material can fall onto the auxiliary sorting device 500 and also can directly fall into the third chute 3. Likewise, in other embodiments, an auxiliary sorting apparatus 500 may be further provided above the partition between the first chute 1 and the second chute 2.
After passing through the position of the first spray valve 10, the third material is sorted, and the rest two minerals are not sorted, and when falling to the position of the second spray valve 20, are sorted through the second spray valve 20. The second spraying valve 20 is arranged at the lower side of the mineral movement track to realize the spraying of minerals from bottom to top, and after being sprayed by the second spraying valve 20 and thrown from bottom to top, the second material continuously rises from a spraying point to a highest point and then falls; when falling, the second kind of material can hit the side of the auxiliary sorting device 500 and can also directly fall into the second chute 2.
It should be noted that, in the embodiment of the present application, in combination with the arrangement manner of the first spray valve 10 and the second spray valve 20 in the present application, the spraying position of the first spray valve 10 is higher than the spraying position of the second spray valve 20, and the first spray valve 10 is used for sorting the third chute 3 away from the distribution device 100, the movement trajectory of the third material after being sprayed by the first spray valve 10 is firstly thrown and then falls, and the movement trajectory of the second material after being sprayed by the second spray valve 20 is also firstly thrown and then falls. Through this setting, the collision contained angle between third class material and the supplementary sorting unit 500 reduces, and the condition that third class material secondary was catapulted on supplementary sorting unit 500 reduces, reduces the probability of miss-picking from this.
In addition, the elevation angle of the second spray valve 20 is larger than that of the first spray valve 10, so that the second spray valve 20 can blow the second material to a higher vertical height, and for the flight trajectory of the second material, as the auxiliary sorting device 500 can be used for shielding a part of the second chute 2, the effective area of the second chute 2 can be further reduced on the basis of realizing the preset sorting precision. In the embodiment of the application, the flying track of the second-class material is set to rise first and then fall, the incidence angle (included angle with the horizontal direction) between the moving track and the second chute 2 is increased, and the injected second-class material can enter the second chute 2 more intensively by increasing the incidence angle, so that the probability of mis-selection is reduced.
As shown in fig. 6, the present application further provides a material sorting method, using a system as any of the above, the method comprising:
s02, identifying the material information on the distributing device 100 through the identification device 200 in the material conveying process; for example, during the material conveying process, the material types on the material distributing device 100 are identified by the identifying device 200, and the materials include a first material type, a second material type and a third material type.
S04, when the material falls from the distributing device 100 to the blowing position corresponding to at least one blowing valve, the sorting device 300 sorts the material into at least two types by controlling at least one blowing valve to blow according to the material types corresponding to the material information.
It should be noted that, for example, image information of the material detected by the recognition device 200 is transmitted to a control device (not shown), and the control device calculates shape information of the corresponding material and a motion trajectory of the mineral after being thrown from the conveyor belt by using the image information. The control device can adopt an image recognition algorithm in the prior art (the algorithm for recognizing the shape, position and type information can be different algorithms and then loaded on corresponding hardware), can quickly recognize the shape, position and type information of each material in the image, and the recognition time is from milliseconds to seconds and is less than the time for the material to reach the sorting device 300 from the recognition device 200.
In S04, the sorting of three kinds of materials is exemplified, wherein the sorting device 300 comprises the first injection valve 10 and the second injection valve 20, and the sorting can be performed by using the following injection methods:
when the third material falls from the distributing device 100 to the first blowing position P1 corresponding to the first blowing valve 10, the third material is blown by the first blowing valve 10, so that the third material enters the third chute 3.
When the second material is dropped from the distributing device 100 to the second blowing position P2 corresponding to the second blowing valve 20, the second material is blown by the second blowing valve 20, so that the second material enters the second chute 2.
The first material falls from the distribution device 100 into the first chute 1 without being blown by the first and second injection valves 10 and 20.
It should be noted that, in the embodiment of the present application, the control device is further configured to calculate the coordinate position of the material and the time of reaching the first injection valve 10 and the second injection valve 20, and send the time of starting the injection to the first injection valve 10 and the second injection valve 20. The control device is also used for controlling the opening number of the nozzles on the spray valve according to the calculated size fraction or the calculated external dimension of the material.
During calculation, the control device obtains the position of the material on the conveyor belt, including the transverse position and the longitudinal position of the conveyor belt, according to the material image information obtained by the identification device 200. The transverse position obtained by calculation can be used for controlling the nozzles at the corresponding positions to be opened and controlling the number of the nozzles; the time of reaching the blowing position can be obtained according to the longitudinal position so as to control the nozzle corresponding to the material to blow the material.
As shown in fig. 2, a circle represents a first material, a triangle represents a second material, and a rectangle represents a third material, wherein the first material, the second material, and the third material are scattered on the conveyor belt and fly out horizontally at the same initial speed as the conveyor belt when reaching the edge of the conveyor belt.
When the material reaches the blowing position of the first spray valve 10, if a third material exists in the material, the control device controls to start the first spray valve 10, and the third material reaches the third chute 3 along a flight path from top to bottom when receiving the blowing force of the first spray valve 10; or onto the auxiliary sorting device 500 to reach chute No. three 3 through the action of the auxiliary sorting device 500. And after passing through the first spray valve 10, sorting the third class of materials is finished.
When the material falls to the blowing position of the second spraying valve 20, if a second material class exists in the material, the control device controls to start the second spraying valve 20, and the second material class reaches the second chute 2 along a flight path from top to bottom when receiving the blowing force of the second spraying valve 20; or to the rear of the auxiliary sorting device 500 reaching the No. two chute 2, into the No. two chute 2 through the blockage of the rear of the auxiliary sorting device 500. After passing through the second injection valve 20, the sorting of the second-class materials is completed, and the first-class materials which are not injected reach the first chute 1.
When two materials (such as a second material and a third material) are located in the same width direction of the conveyor belt, and when the second material and the third material reach the blowing position at the same time, because the first injection valve 10 and the second injection valve 20 are also arranged along the width direction of the conveyor belt, when the blowing position is reached, the second nozzle 21 and the first nozzle 11 corresponding to the second material and the third material are started.
It will be understood that the terms "length," "width," "upper," "lower," "front," "rear," "left," "right," "vertical," "horizontal," "top," "bottom," "inner," "outer," and the like, as used herein, refer to an orientation or positional relationship indicated in the drawings that is solely for the purpose of facilitating the description and simplifying the description, and do not indicate or imply that the device or element being referred to must have a particular orientation, be constructed and operated in a particular orientation, and is therefore not to be construed as limiting the invention.
Furthermore, the terms "first", "second" and "first" 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. Thus, a feature defined as "first" or "second" may explicitly or implicitly include one or more of that feature. In the description of the present invention, "a plurality" means two or more unless specifically defined otherwise.
Unless defined otherwise, technical and scientific terms used herein have the same meaning as commonly understood by one of ordinary skill in the art to which this invention belongs. The terminology used herein is for the purpose of describing particular embodiments only and is not intended to be limiting of the invention. Terms such as "disposed" and the like, as used herein, may refer to one element being directly attached to another element or one element being attached to another element through intervening elements. Features described herein in one embodiment may be applied to another embodiment, either alone or in combination with other features, unless the feature is otherwise inapplicable or otherwise stated in the other embodiment.
The present invention has been described in terms of the above embodiments, but it should be understood that the above embodiments are for purposes of illustration and description only and are not intended to limit the invention to the described embodiments. It will be appreciated by those skilled in the art that many variations and modifications are possible in light of the above teaching and are within the scope of the invention as claimed.
Claims (10)
1. A material sorting system, comprising:
the material distribution device is used for conveying materials;
the identification device is used for identifying the material information of the material on the material distribution device;
the sorting device is used for sorting the materials according to the material information and comprises at least one injection valve which is positioned on the lower side of the mineral motion track and used for injecting the materials;
the receiving device comprises at least two chutes for accommodating the sorted materials of at least two categories;
and the auxiliary sorting device is arranged above the at least two chutes and is used for conveying the materials falling on the auxiliary sorting device to the chutes on one side, far away from the distributing device, of the at least two chutes.
2. The system of claim 1, wherein the spray valves include a first spray valve and a second spray valve for sorting the material into three categories, the first spray valve being disposed on a side of the second spray valve adjacent to the distribution device.
3. The system of claim 2, wherein the first spray valve comprises a plurality of first spray nozzles arranged in a widthwise array of the distribution device, and the second spray valve comprises a plurality of second spray nozzles arranged in a widthwise array of the distribution device.
4. The system of claim 3, wherein the first nozzle has a blowing pressure of 0.5 to 0.75 MPa; the blowing pressure of the second nozzle is 0.5MPa to 0.75 MPa.
5. The system according to claim 2, wherein the receiving device comprises a first chute on one side close to the distributing device, a second chute in the middle, and a third chute on one side far from the distributing device.
6. The system according to claim 5, characterized in that the receiving device comprises a first partition plate for forming the first chute and the second chute at intervals, a second partition plate for forming the second chute and the third chute at intervals, and a third partition plate positioned on one side of the third chute, wherein the heights of the first partition plate, the second partition plate and the third partition plate are sequentially increased.
7. The system according to claim 6, wherein the secondary sorting device is disposed on the second partition for conveying material falling on the secondary sorting device into the chute number three, and an orthographic projection of the secondary sorting device in a horizontal plane partially overlaps an orthographic projection of the chute number two in a horizontal plane.
8. The system of claim 1, wherein the auxiliary sorting device is one or more of a horizontally arranged conveyor belt, an obliquely arranged conveyor belt, and an angled slide plate.
9. The system according to claim 1, characterized in that the auxiliary sorting device is arranged obliquely, the auxiliary sorting device being inclined downwards in a direction away from the distribution device.
10. A method of sorting materials, using a system as claimed in any one of claims 1 to 9, the method comprising:
identifying the material information of the material on the material distribution device through the identification device in the material conveying process;
when the materials fall to the blowing position corresponding to the at least one blowing valve from the material distribution device, the sorting device sorts the materials into at least two types by controlling the at least one blowing valve to blow according to the material types corresponding to the material information.
Priority Applications (2)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN202210413443.8A CN114798452A (en) | 2022-04-19 | 2022-04-19 | Material sorting system and sorting method |
| PCT/CN2023/080754 WO2023202258A1 (en) | 2022-04-19 | 2023-03-10 | Material sorting system and method |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN202210413443.8A CN114798452A (en) | 2022-04-19 | 2022-04-19 | Material sorting system and sorting method |
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| CN114798452A true CN114798452A (en) | 2022-07-29 |
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| Application Number | Title | Priority Date | Filing Date |
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| CN202210413443.8A Pending CN114798452A (en) | 2022-04-19 | 2022-04-19 | Material sorting system and sorting method |
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| Country | Link |
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| CN (1) | CN114798452A (en) |
| WO (1) | WO2023202258A1 (en) |
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| CN116371763A (en) * | 2023-05-22 | 2023-07-04 | 天津美腾科技股份有限公司 | Multi-target sorting control method and device |
| WO2023202258A1 (en) * | 2022-04-19 | 2023-10-26 | 同方威视技术股份有限公司 | Material sorting system and method |
| WO2023202260A1 (en) * | 2022-04-19 | 2023-10-26 | 同方威视技术股份有限公司 | Material sorting system and sorting method |
| CN117443748A (en) * | 2023-12-20 | 2024-01-26 | 北京霍里思特科技有限公司 | Control method of object block sorting system and object block sorting system |
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Also Published As
| Publication number | Publication date |
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| WO2023202258A1 (en) | 2023-10-26 |
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