Underground intelligent separation system for tungsten ore

Abstract

The invention relates to the technical field of intelligent tungsten ore separation, and provides an underground intelligent tungsten ore separation system which comprises a raw ore bin, a crushing chamber, a screening chamber, a fine silt roughing chamber, a waste throwing chamber, a coarse sand concentrate bin, a waste throwing concentrate bin, a barren rock bin, a precipitation device and a transportation device. The crushing chamber is connected with the screening chamber through the conveying device, the waste throwing chamber is connected with the screening chamber through the conveying device, the device can adapt to continuous production and separation, the ore treatment speed and yield are remarkably increased, waste rocks are thrown away through pretreatment, and the production efficiency is improved. The energy consumption and the material consumption of subsequent grinding and other procedures are reduced, so that the overall production cost is reduced, useful ores are effectively identified and separated through arrangement of the waste throwing chamber and screening, the recovery rate and the utilization rate of resources are improved, and the transportation cost and the grinding and subsequent separation cost are reduced.

Description

Technical Field

[0001] The present invention relates to the technical field of intelligent sorting of tungsten ore, and in particular to an underground intelligent sorting system of tungsten ore. Background Art

[0002] After long-term mining, the high-grade, easy-to-mine and easy-to-select black wolframite resources in China are becoming exhausted. The current stock of tungsten resources is mainly scheelite, which faces problems such as low ore grade and difficulty in selection. It is similar to the mainstream skarn scheelite mined abroad, and the natural advantages of resource endowment are weakening year by year.

[0003] At present, the underground intelligent sorting system of tungsten mines is mainly based on traditional manual sorting methods, as well as traditional mineral processing technologies such as gravity separation pre-selection and magnetic separation pre-selection. These traditional methods have the disadvantages of low efficiency and low precision, and are highly subjective, unable to form an objective and unified standard, and easily lead to waste of resources. At present, traditional mines at home and abroad arrange mineral processing facilities, tailings facilities, filling facilities, and other auxiliary facilities on the surface. Since mining, mineral processing, tailings, and filling are separated in space, they are connected by automobile transportation, belts, or pipelines, resulting in a large area, high transportation costs, and environmental pollution and safety hazards. In view of this, this application is specially proposed. Summary of the invention

[0004] This application proposes an underground intelligent sorting system for tungsten ore to solve the technical problem that the underground intelligent sorting system for tungsten ore in the prior art is mainly based on the traditional manual sorting method, which has the disadvantages of low efficiency and low precision, strong human subjectivity, and cannot form an objective and unified standard, which easily causes waste of resources. The above technical purpose of the present invention is achieved through the following technical solutions: To achieve the above-mentioned purpose, the technical solution adopted by the present invention is: an underground intelligent sorting system for tungsten ore, including an ore bin, a crushing chamber, a screening chamber, a fine mud roughing chamber, a waste chamber, a coarse sand concentrate bin, a waste concentrate bin, a waste rock bin, a sedimentation device and a transportation device, the ore bin is connected to the crushing chamber, the crushing chamber is connected to the screening chamber through the transportation device, the waste chamber is connected to the screening chamber through the transportation device, the waste rock bin is connected to the waste chamber through the transportation device, the waste chamber is connected to the waste concentrate bin through the transportation device, the screening chamber is connected to the fine mud roughing chamber, and the fine mud roughing chamber is connected to the coarse sand concentrate bin and the sedimentation device.

[0005] Preferably, the transportation device includes a first belt conveyor channel, a second belt conveyor channel, a belt transfer station, a third belt conveyor channel, a fourth belt conveyor channel, a fifth belt conveyor channel and a sixth belt conveyor channel, the first belt conveyor channel and the third belt conveyor channel are both connected to the crushing chamber, the first belt conveyor channel is connected to the screening chamber, the second belt conveyor channel is connected to the screening chamber, the belt transfer station is arranged between the second belt conveyor channel and the third belt conveyor channel, the fourth belt conveyor channel is arranged between the screening chamber and the waste chamber, the fifth belt conveyor channel is arranged between the waste chamber and the waste rock bin, and the sixth belt conveyor channel is arranged between the waste chamber and the waste concentrate bin.

[0006] Preferably, the sedimentation device includes a coarse and fine mud transport channel, a fine mud concentrate sedimentation chamber, a tailings mud sedimentation chamber and a water tank, the coarse and fine mud transport channel is arranged between the fine mud roughing chamber and the fine mud concentrate sedimentation chamber, the coarse and fine mud transport channel and the fine mud concentrate sedimentation chamber are connected in parallel, and the water tank is arranged between the outlets of the fine mud roughing chamber and the fine mud concentrate sedimentation chamber connected in parallel.

[0007] Preferably, a grizzly feeder, a jaw crusher and a cone crusher are provided in the crushing chamber.

[0008] Preferably, the screening chamber is provided with a circular vibrating screen, a spiral classifier and two spiral chutes.

[0009] Preferably, an intelligent sorting machine is provided in the waste disposal chamber.

[0010] Preferably, the number of the fine mud roughing chamber and the number of the fine mud concentrate sedimentation chamber are both two.

[0011] Preferably, a transport lane and a water pump room are provided between the outlets of the fine mud roughing chamber and the fine mud concentrate sedimentation chamber connected in parallel, the water pump room is connected to the transport lane, and the water tank is connected to the water pump room.

[0012] Preferably, the raw ore bin, the crushing chamber, the screening chamber, the waste chamber and the waste rock bin are arranged in sequence and in the same straight line.

[0013] Preferably, the crushing chamber, the screening chamber and the belt transfer station are arranged in a triangle shape.

[0014] One or more of the above technical solutions in the embodiments of the present invention have at least the following technical effects or advantages: The present application can be adapted to continuous production and sorting, significantly improving the processing speed and output of ore. By pre-treating and discarding waste rock, the energy consumption and material consumption of subsequent grinding and other processes are reduced, thereby reducing the overall production cost. By setting up a waste chamber, screening and effectively identifying and separating useful ores, the recovery rate and utilization rate of resources are improved, and the transportation cost and the grinding and subsequent sorting cost are reduced. This application builds the ore preliminary sorting and waste treatment facilities underground, effectively avoiding the occupation of valuable ground space. Waste materials such as waste rock are directly processed underground, reducing the amount of tailings in the ground concentrator, and can effectively reduce the pollution of the ground environment by waste materials; The underground transportation system can realize the rapid and accurate transportation of waste materials, improve processing efficiency, avoid long-distance round-trip transportation, and improve transportation efficiency. BRIEF DESCRIPTION OF THE DRAWINGS

[0015] In order to more clearly illustrate the technical solutions in the embodiments of the present invention, the drawings required for use in the embodiments or the description of the prior art will be briefly introduced below. Obviously, the drawings described below are only some embodiments of the present invention. For ordinary technicians in this field, other drawings can be obtained based on these drawings without paying creative work.

[0016] Figure 1 A schematic plan view of an embodiment of the present invention; Figure 2 A schematic plan view of a sedimentation chamber provided in an embodiment of the present invention; Figure 3 A schematic plan view of an elevation is provided for an embodiment of the present invention; Figure 4 A schematic plan view of a screening chamber provided in an embodiment of the present invention; Figure 5 A schematic plan view of a discard chamber provided in an embodiment of the present invention; In the figure: 1. Ore bin; 2. Crushing chamber; 3. First belt transport channel; 4. Screening chamber; 5. Second belt transport channel; 6. Belt transfer station; 7. Third belt transport channel; 8. Fourth belt transport channel; 9. Waste chamber; 10. Fifth belt transport channel; 11. Waste rock bin; 12. Sixth belt transport channel; 13. Waste concentrate bin; 14. Fine mud roughing chamber; 15. Coarse sand concentrate bin; 16. Coarse and fine mud transport channel; 17. Fine mud concentrate sedimentation chamber; 18. Tailing mud sedimentation chamber; 19. Water tank. DETAILED DESCRIPTION

[0017] Embodiments of the present invention are described in detail below, examples of which are shown in the accompanying drawings, wherein the same or similar reference numerals throughout represent the same or similar elements or elements having the same or similar functions. The embodiments described below with reference to the accompanying drawings are exemplary and are intended to be used to explain the present invention, and should not be construed as limiting the present invention.

[0018] In the description of the present invention, it should be understood that the terms "length", "width", "up", "down", "front", "back", "left", "right", "vertical", "horizontal", "top", "bottom", "inside", "outside", etc., indicating the orientation or position relationship are based on the orientation or position relationship shown in the drawings, and are only for the convenience of describing the present invention and simplifying the description, rather than indicating or implying that the device or element referred to must have a specific orientation, be constructed and operated in a specific orientation, and therefore cannot be understood as a limitation on the present invention.

[0019] In addition, the terms "first" and "second" are used for descriptive purposes only and should not be understood as indicating or implying relative importance or implicitly indicating the number of the indicated technical features. Therefore, the features defined as "first" and "second" may explicitly or implicitly include one or more of the features. In the description of the present invention, the meaning of "plurality" is two or more, unless otherwise clearly and specifically defined.

[0020] In the present invention, unless otherwise clearly specified and limited, the terms "installed", "connected", "connected", "fixed" and the like should be understood in a broad sense, for example, it can be a fixed connection, a detachable connection, or an integral connection; it can be a mechanical connection or an electrical connection; it can be a direct connection or an indirect connection through an intermediate medium, it can be the internal connection of two elements or the interaction relationship between two elements. For ordinary technicians in this field, the specific meanings of the above terms in the present invention can be understood according to specific circumstances.

[0021] Please see attached Figure 1-5 An underground intelligent sorting system for tungsten ore comprises an ore bin 1, a crushing chamber 2, a screening chamber 4, a fine mud roughing chamber 14, a discarding chamber 9, a coarse sand concentrate bin 15, a discarding concentrate bin 13, a waste rock bin 11, a sedimentation device and a transportation device. The ore bin 1 is connected to the crushing chamber 2, and the crushing chamber 2 is connected to the screening chamber 4 through the transportation device. The screening chamber 4 is provided with a circular vibrating screen, a spiral classifier and two spiral chutes. The crushing chamber 2 is equipped with a rod feeder, a jaw crusher and a cone crusher. The waste chamber 9 is connected to the screening chamber 4 through a transportation device. The waste chamber 9 is equipped with an intelligent sorting machine. The waste rock bin 11 is connected to the waste chamber 9 through a transportation device. The waste chamber 9 is connected to the waste concentrate bin 13 through the transportation device. The screening chamber 4 is connected to the fine mud roughing chamber 14, and the fine mud roughing chamber 14 is connected to the coarse sand concentrate bin 15 and the sedimentation device.

[0022] With the above technical solution, the raw ore bin 1 is used as a storage area to receive the raw ore mined underground. The grizzly feeder is installed at the bottom of the raw ore bin 1 and is responsible for evenly conveying the raw ore to the crushing chamber 2, ensuring that the crusher will not be overloaded due to uneven feeding of the ore. The jaw crusher in the crushing chamber 2 performs preliminary crushing on the raw ore, crushing it from larger block materials into smaller particles. Subsequently, the material is conveyed to the cone crusher through a belt conveyor for further fine crushing to meet the particle size requirements of the subsequent process flow. The finely crushed product and the coarsely crushed product are discharged into the belt conveyor together and sent to the screening chamber 4 for inspection and screening. The 10-60 mm particle size material is conveyed by the belt conveyor to the discarding chamber 9 for intelligent sorting. The waste chamber 9 uses advanced identification technology to separate the concentrate and waste rock in the materials of 10-60 mm. The concentrate is sent to the waste concentrate bin 13, and the waste rock is sent to the waste rock bin 11. The sedimentation device separates the fine mud concentrate and tailings by natural sedimentation. The precipitated concentrate is collected and transported to the surface, and the tailings are used for underground filling to achieve waste recycling. In the whole process, the transportation of materials mainly depends on the transportation device, which delivers the crushed materials to the screening chamber 4, and the belt transfer station 6 is used to optimize the flow of materials and reduce the energy consumption and time during transportation.

[0023] In some embodiments, the transportation device includes a first belt transport channel 3, a second belt transport channel 5, a belt transfer station 6, a third belt transport channel 7, a fourth belt transport channel 8, a fifth belt transport channel 10 and a sixth belt transport channel 12. The first belt transport channel 3 and the third belt transport channel 7 are both connected to the crushing chamber 2, the first belt transport channel 3 is connected to the screening chamber 4, the second belt transport channel 5 is connected to the screening chamber 4, the belt transfer station 6 is arranged between the second belt transport channel 5 and the third belt transport channel 7, the fourth belt transport channel 8 is arranged between the screening chamber 4 and the waste chamber 9, the fifth belt transport channel 10 is arranged between the waste chamber 9 and the waste rock bin 11, and the sixth belt transport channel 12 is arranged between the waste chamber 9 and the waste concentrate bin 13.

[0024] By adopting the above technical scheme, the crushing chamber 2 transports the crushed product to the screening chamber 4 through the first belt conveyor channel 3. After screening, the +60mm particle size material is transferred through the second belt conveyor channel 5, the belt transfer station 6, and the third belt conveyor channel 7, and then returned to the pre-fine crushing buffer bin of the crushing chamber 2, and then fed into the cone crusher for fine crushing through the vibrating feeder under the ore bin. The finely crushed product is discharged into the belt conveyor together with the coarsely crushed product and sent to the screening chamber 4 for inspection and screening. The 10~60mm particle size material is sent to the waste chamber 9 by the fourth belt conveyor channel 8, and the concentrate and waste rock after intelligent sorting are transported to the waste concentrate bin 13 and the waste rock bin 11 by the fifth belt conveyor channel 10 and the sixth belt conveyor channel 12 respectively.

[0025] In some embodiments, the sedimentation device includes a coarse and fine mud transport channel 16, a fine mud concentrate sedimentation chamber 17, a tailings mud sedimentation chamber 18 and a water tank 19. The coarse and fine mud transport channel 16 is arranged between the fine mud roughing chamber 14 and the fine mud concentrate sedimentation chamber 17. The coarse and fine mud transport channel 16 and the fine mud concentrate sedimentation chamber 17 are connected in parallel. The number of the fine mud roughing chamber 14 and the fine mud concentrate sedimentation chamber 17 is two. The water tank 19 is arranged between the outlets of the fine mud roughing chamber 14 and the fine mud concentrate sedimentation chamber 17 connected in parallel. A transport lane and a water pump room are provided between the outlets of the fine mud roughing chamber 14 and the fine mud concentrate sedimentation chamber 17 connected in parallel. The water pump room is connected to the transport lane, and the water tank 19 is connected to the water pump room.

[0026] With the above technical solution, after natural sedimentation, the tailings are transported to the underground filling system by a mine car; the overflow water flows to the water tank 19 by gravity, and is pumped back to the production process. The waste concentrate, coarse sand concentrate and fine mud concentrate are transported to the surface beneficiation plant production system by a mine car. The sedimentation chamber is arranged in the next middle section of each of the above chambers, and consists of four lanes for sedimentation of fine mud concentrate and tailings. After natural sedimentation, the fine mud concentrate is shoveled into the mine car by a shovel loader and transported to the surface beneficiation plant. After sedimentation, the tailings are transported to the underground filling system by a mine car. The sedimentation chamber is equipped with two water tanks 19 for storing overflow water.

[0027] In some embodiments, the ore bin 1, the crushing chamber 2, the screening chamber 4, the waste chamber 9 and the waste rock bin 11 are arranged in sequence and in the same straight line. Such a distribution can reduce infrastructure costs.

[0028] In some embodiments, the crushing chamber 2, the screening chamber 4 and the belt transfer station 6 are arranged in a triangular shape. Considering the safety during tunnel excavation, the two transport tunnels going back and forth between the crushing chamber 2 and the screening chamber 4 are changed from a parallel arrangement to a triangular arrangement with an additional belt transfer station.

[0029] Process flow: The raw ore mined underground is first crushed in two stages and one closed circuit, and then unloaded into the raw ore bin 1 after being lifted through the mixing well. After the raw ore is mined underground, it is transported to the raw ore bin 1 for storage. The bar feeder at the bottom of the raw ore bin 1 evenly transports the raw ore to the crushing chamber 2. The jaw crusher and cone crusher perform coarse and fine crushing on the raw ore. The coarse crushed product is transported by the transportation device to the screening chamber 4 for screening. The circular vibrating screen, spiral classifier and spiral chute are used to screen and grade the materials according to the particle size. Due to the needs of closed-circuit crushing and ore washing operations, the screening chamber 4 is divided into three layers; the top layer is the head of the incoming belt conveyor, the middle layer is equipped with a circular vibrating screen, and the bottom layer is a belt conveyor, a spiral classifier and a spiral chute. The circular vibrating screen uses three layers of screens with sieve holes of 5mm, 10mm and 60mm respectively, and the ore is screened and washed by spraying water; After being transferred through the second belt conveyor channel 5, the belt transfer station 6, and the third belt conveyor channel 7, the materials are returned to the pre-fine crushing buffer bin of the crushing chamber 2, and then fed into the cone crusher for fine crushing through the vibrating feeder under the ore bin. The fine crushed products and coarse crushed products are discharged into the belt conveyor together and sent to the screening chamber 4 for inspection and screening; the 10-60mm particle size materials are transported by the belt conveyor to the waste chamber 9 for intelligent sorting; the concentrate and waste rock after intelligent sorting are transported to the waste concentrate bin 13 and the waste rock bin 11 by the fifth belt conveyor channel 10 and the sixth belt conveyor channel 12 respectively, and the 0-5mm particle size materials are screened out and firstly a spiral The classifier performs classification. The coarse sand after spiral classification is dehydrated by the dewatering screen and then formed into coarse sand concentrate together with the 5-10 mm particle size material under the vibrating screen. It is transported to the coarse sand concentrate bin 15 by the belt conveyor. The material under the dewatering screen is returned to the spiral classification. The overflow of the spiral classifier is roughly selected by a spiral chute. The fine mud concentrate and tailings after rough selection flow through the pipeline to the sedimentation chamber of the next middle section. After natural sedimentation, the tailings are transported to the underground filling system by a mine car. The overflow water flows by gravity to the water tank 19 and is returned to the production process by pumping. The waste concentrate, coarse sand concentrate and fine mud concentrate are transported to the surface mineral processing plant production system by mine cars.

[0030] It should be understood that the above specific embodiments of the present invention are only used to illustrate or explain the principles of the present invention, and do not constitute a limitation of the present invention. Therefore, any modifications, equivalent substitutions, improvements, etc. made without departing from the spirit and scope of the present invention should be included in the protection scope of the present invention. In addition, the appended claims of the present invention are intended to cover all changes and modifications that fall within the scope and boundaries of the appended claims, or the equivalent forms of such scope and boundaries.

Claims

1. An underground intelligent sorting system for tungsten ore, characterized in that: The invention comprises an ore bin (1), a crushing chamber (2), a screening chamber (4), a fine mud roughing chamber (14), a waste chamber (9), a coarse sand concentrate bin (15), a waste concentrate bin (13), a waste rock bin (11), a sedimentation device and a transport device, wherein the ore bin (1) is connected to the crushing chamber (2), the crushing chamber (2) is connected to the screening chamber (4) via the transport device, and the waste chamber (9) is connected to the coarse sand concentrate bin (15), the waste concentrate bin (13), the waste rock bin (11), a sedimentation device and a transport device, wherein the ore bin (1) is connected to the crushing chamber (2), the crushing chamber (2) is connected to the screening chamber (4) via the transport device, and the waste chamber (9) is connected to the coarse sand concentrate bin (15), the waste concentrate bin (13), the waste rock bin (11), a sedimentation device and a transport device, The waste rock bin (11) is connected to the waste chamber (9) through the transport device, the waste chamber (9) is connected to the waste concentrate bin (13) through the transport device, the screening chamber (4) is connected to the fine mud roughing chamber (14), and the fine mud roughing chamber (14) is connected to the coarse sand concentrate bin (15) and the sedimentation device.

2. The underground intelligent sorting system of tungsten ore according to claim 1 is characterized in that: The transport device comprises a first belt transport channel (3), a second belt transport channel (5), a belt transfer station (6), a third belt transport channel (7), a fourth belt transport channel (8), a fifth belt transport channel (10) and a sixth belt transport channel (12); the first belt transport channel (3) and the third belt transport channel (7) are both connected to the crushing chamber (2); the first belt transport channel (3) and the screening chamber (4); the second belt transport channel (5) and the screening chamber (4); the belt transfer station (6) is arranged between the second belt transport channel (5) and the third belt transport channel (7); the fourth belt transport channel (8) is arranged between the screening chamber (4) and the waste chamber (9); the fifth belt transport channel (10) is arranged between the waste chamber (9) and the waste rock bin (11); and the sixth belt transport channel (12) is arranged between the waste chamber (9) and the waste concentrate bin (13).

3. The underground intelligent sorting system of tungsten ore according to claim 1 is characterized in that: The sedimentation device comprises a coarse and fine mud transport channel (16), a fine mud concentrate sedimentation chamber (17), a tailing mud sedimentation chamber (18) and a water tank (19); the coarse and fine mud transport channel (16) is arranged between the fine mud roughing chamber (14) and the fine mud concentrate sedimentation chamber (17); the coarse and fine mud transport channel (16) and the fine mud concentrate sedimentation chamber (17) are connected in parallel; and the water tank (19) is arranged between the outlets of the fine mud roughing chamber (14) and the fine mud concentrate sedimentation chamber (17) which are connected in parallel.

4. The underground intelligent sorting system of tungsten ore according to claim 2 is characterized in that: The crushing chamber (2) is provided with a grizzly feeder, a jaw crusher and a cone crusher.

5. The underground intelligent sorting system of tungsten ore according to claim 3 is characterized in that: The screening chamber (4) is provided with a circular vibrating screen, a spiral classifier and two spiral chutes.

6. The underground intelligent sorting system of tungsten ore according to claim 3 is characterized in that: An intelligent sorting machine is provided in the waste disposal chamber (9).

7. The underground intelligent sorting system of tungsten ore according to claim 3 is characterized in that: The number of the fine mud roughing chamber (14) and the number of the fine mud concentrate sedimentation chamber (17) are both two.

8. The underground intelligent sorting system of tungsten ore according to claim 3 is characterized in that: A transport tunnel and a water pump room are provided between the outlets of the fine mud roughing chamber (14) and the fine mud concentrate sedimentation chamber (17) which are connected in parallel. The water pump room is in communication with the transport tunnel, and the water tank (19) is in communication with the water pump room.

9. The underground intelligent sorting system of tungsten ore according to claim 1, characterized in that: The raw ore bin (1), the crushing chamber (2), the screening chamber (4), the waste chamber (9) and the waste rock bin (11) are arranged in sequence and in the same straight line.

10. The underground intelligent sorting system of tungsten ore according to claim 2, characterized in that: The crushing chamber (2), the screening chamber (4) and the belt transfer station (6) are arranged in a triangle shape.

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