Mining storage device

Abstract

The invention relates to the technical field of material storage, in particular to a mining storage device which comprises a coal storage bin, an upper cover at the upper end of the coal storage bin is detachably connected, one side of the coal storage bin is sequentially provided with a feeding port and a ventilation hole from top to bottom, a square groove is formed in the inner wall of the coal storage bin, and the ventilation hole is formed in the inner wall of the coal storage bin. The gas dilution hole is formed in the bottom of the square groove in a penetrating mode and communicates with the gas conveying pipe, the elastic connecting rope is connected between the rotating plate and the valve plate, and the valve plate is arranged in the square groove in a sliding mode. When coal is stored in the coal storage bin, the rotating plate which intermittently swings drives the combustible gas protection assembly to move, carbon dioxide gas is intermittently supplemented, and combustible gas is extruded out through the carbon dioxide gas, so that the safety of the coal when the coal is stored on the inner side of the coal storage bin is remarkably improved; and threats caused by combustible gas and pulverized coal are eliminated.

Description

Technical Field

[0001] The invention relates to the technical field of material storage, and in particular to a mining storage device. Background Art

[0002] Coal is an important resource in mines. It is a solid combustible mineral that is gradually formed by ancient plants buried underground and undergoing complex biochemical and physical and chemical changes. It is mainly composed of carbon, hydrogen, oxygen, nitrogen, sulfur and phosphorus, among which the sum of carbon, hydrogen and oxygen accounts for more than 95% of organic matter. According to the degree of coalification, coal can be divided into four categories: peat, lignite, bituminous coal and anthracite.

[0003] There is a publication number CN203959032U, named a coal output device for a coal storage box, which involves the field of chemical material production equipment. The main body is a storage box, which is supported by a group of supporting legs. A discharge port is arranged at the bottom of the storage box, and an inclined plate is connected to the discharge port. Baffles are arranged on both sides of the inclined plate. A spring is arranged on the baffle, and the spring is connected to a hook fixed on the storage box. A vibration pump is also arranged on the discharge port. The structural design is novel and simple. Through the vibration of the discharge port, it is convenient and fast, simple to control, good in practicality, and high in market value.

[0004] Although the above technology is easy to operate, combustible gas will be formed when coal is injected into the storage device. Secondly, a large amount of coal dust will explode when encountering sparks or high temperatures. The above technical solution does not propose any ideas to solve the above problems. Summary of the invention

[0005] The purpose of the present invention is to solve the shortcomings of the prior art and to propose a mining storage device.

[0006] In order to achieve the above object, the present invention adopts the following technical solutions: A mining storage device is designed, including a coal storage bin, the upper cover of which is detachably connected: A feed port and a ventilation hole are sequentially provided on one side of the coal storage bin from top to bottom, a rotating plate is hingedly connected to the lower eaves of the feed port, and a combustible gas protection component is provided between one side of the rotating plate and the inner wall of the coal storage bin; The flammable gas protection assembly includes an elastic connecting rope, a valve plate, a gas dilution hole, a square groove and a gas transmission pipe; The square groove is opened on the inner wall of the coal storage bin, the gas dilution hole is opened through the bottom of the square groove, and the gas dilution hole and the gas pipe are interconnected, the elastic connecting rope is connected between the rotating plate and the valve plate, and the valve plate is slidably arranged in the square groove.

[0007] Preferably, a regulating component is provided between the rotating plate and the coal storage bin; The regulating component includes a support plate, a hydraulic telescopic rod and a ventilation hole. The support plate is installed outside the coal storage bin, the hydraulic telescopic rod is installed between the support plate and the rotating plate, and the hydraulic telescopic rod passes through the ventilation hole and extends to the inside of the coal storage bin.

[0008] Preferably, a feed plate is obliquely installed on the coal storage bin at the feed port, a water tank is installed on the upper end of the feed plate through a water tank rack, a nozzle is installed at the bottom of the water tank rack, a box body is installed at the lower end of the feed plate, and a plurality of through leakage holes are distributed in a linear array on the upper part of the feed plate.

[0009] Preferably, a plurality of slots are evenly distributed near the lower end of the feed plate, a reflux assembly is rotatably arranged inside the slot, and a driving assembly is arranged between the outer sides of multiple groups of the reflux assemblies.

[0010] Preferably, the reflux component includes absorbent cotton, a leakage hole and an inner tube; The inner tube is rotatably arranged inside the slot hole, the absorbent cotton is wrapped around the outside of the inner tube, and the leakage hole is through-opened on the inner tube and the absorbent cotton.

[0011] Preferably, the driving assembly comprises a stepping motor, a chain and a gear; The gear is fixedly mounted at the end of the inner tube via a connecting shaft, the chain is sleeved on the outside of a plurality of the gears, the stepper motor is mounted on one side of the box via a motor frame, and the end of the output shaft of the stepper motor is connected to one of the gears.

[0012] Preferably, a plurality of receiving hoppers are installed at the bottom of the box body, and the positions of the receiving hoppers match the positions of the upper slots, and a scraping assembly is arranged in the receiving hopper; The scraping assembly includes a friction plate, a flap, a rotating shaft and a through hole. The rotating shaft is fixedly mounted on one side of the box body. The flaps are distributed in a circular array on the outside of the rotating shaft. The other end of the flap is connected to the friction plate. The friction plate and the absorbent cotton at the upper end are in squeeze contact with each other. The through hole is opened on the flap.

[0013] Preferably, scrapers are symmetrically installed on both sides of the receiving hopper, brushes are arranged on the opposite side of the scrapers, and a spacing is arranged between each group of brushes.

[0014] Preferably, the other end of the gas pipeline is connected to a gas supply device, and the gas supplied is carbon dioxide gas.

[0015] Preferably, a discharge pipe is installed at the bottom of the receiving hopper, and the discharge pipe is controlled by a valve.

[0016] A mining storage device proposed by the present invention has the beneficial effect that when coal is stored inside a coal storage bin, the mining storage device drives the combustible gas protection component to move through an intermittently swinging rotating plate, intermittently replenishes carbon dioxide gas, and squeezes out the combustible gas through the carbon dioxide gas, thereby significantly improving the safety of coal when stored inside the coal storage bin and eliminating the threats posed by combustible gas and coal powder. BRIEF DESCRIPTION OF THE DRAWINGS

[0017] Figure 1 This is a schematic structural diagram of a mining storage device proposed by the present invention.

[0018] Figure 2 This is a schematic structural diagram of a mining storage device proposed by the present invention from another perspective.

[0019] Figure 3 This is a schematic structural diagram of a feed plate of a mining storage device proposed by the present invention.

[0020] Figure 4 This is a schematic diagram of the position structure of a reflux component and a scraping component of a mining storage device proposed by the present invention.

[0021] Figure 5 This is an enlarged structural diagram of a scraping assembly of a mining storage device proposed by the present invention.

[0022] Figure 6 This is an enlarged structural diagram of a reflux component of a mining storage device proposed by the present invention.

[0023] Figure 7 for Figure 1 An enlarged structural diagram of part A of a proposed mining storage device.

[0024] In the figure: water tank 1, water tank frame 2, feed plate 3, leakage hole 4, slot hole 5, reflux component 6, absorbent cotton 61, leakage hole 62, inner tube 63, box body 7, hopper 8, scraper component 9, friction plate 91, flap 92, rotating shaft 93, through hole 94, scraper 10, feed port 11, rotating plate 12, nozzle 13, elastic connecting rope 14, valve plate 15, gas dilution hole 16, square slot 17, support plate 18, hydraulic telescopic rod 19, ventilation hole 20, coal storage bin 21, gas pipeline 22, stepper motor 23, chain 24, gear 25, brush 26. DETAILED DESCRIPTION

[0025] The technical solutions in the embodiments of the present invention will be described clearly and completely below in conjunction with the drawings in the embodiments of the present invention. Obviously, the described embodiments are only part of the embodiments of the present invention, rather than all the embodiments.

[0026] Example 1, reference Figure 1-2 A mining storage device includes a coal storage bin 21, the upper cover of which is detachably connected, a feed port 11 and ventilation holes 20 are sequentially opened on one side of the coal storage bin 21 from top to bottom, a rotating plate 12 is hinged at the lower eaves of the feed port 11, and a combustible gas protection component is arranged between one side of the rotating plate 12 and the inner wall of the coal storage bin 21.

[0027] Reference Figure 7 The combustible gas protection component includes an elastic connecting rope 14, a valve plate 15, a gas dilution hole 16, a square groove 17 and a gas pipe 22. The square groove 17 is provided on the inner wall of the coal storage bin 21. The gas dilution hole 16 is provided through the bottom of the square groove 17, and the gas dilution hole 16 and the gas pipe 22 are connected to each other. The elastic connecting rope 14 is connected between the rotating plate 12 and the valve plate 15, and the valve plate 15 is slidably arranged in the square groove 17. The other end of the gas pipe 22 is connected to a gas supply device, and the gas supplied is carbon dioxide gas.

[0028] The upper cover of the coal storage bin 21 is detachable. When the coal in the coal storage bin 21 needs to be extracted using a lifting device, the upper cover can be opened and the coal can enter from the feed port 11 .

[0029] Because the flammable gases and coal dust contained in coal are too concentrated, it is very dangerous to encounter open flames, and may even cause explosions.

[0030] To this end, when the rotating plate 12 reciprocates, the valve plate 15 on one side of the coal storage bin 21 is driven to move up and down inside the square groove 17. During the displacement of the valve plate 15, the ventilation hole 20 is opened and closed. In this way, the carbon dioxide gas filled into the gas pipe 22 is an inert gas. After the carbon dioxide gas enters the coal storage bin 21, it will squeeze out the combustible gas, thereby achieving a dilution effect. At the same time, intermittent introduction of gas can promote the mixing of gas molecules, so that the diluent gas and the diluted gas can be mixed more evenly. This mixing method can reduce the situation of local concentration being too high or too low, thereby improving the uniformity of mixing. Secondly, intermittent introduction of gas can avoid excessive dilution. If the dilution gas is continuously introduced, the concentration of the diluted gas may be too low, affecting its normal physical or chemical properties. Intermittent introduction can ensure the dilution effect while avoiding the problem of excessive dilution. Finally, intermittent introduction of gas can save the use of dilution gas. Compared with continuous introduction of dilution gas, intermittent introduction can reduce the consumption of dilution gas while achieving the same dilution effect, thereby reducing costs.

[0031] Example 2, reference Figure 1-2The difference between this embodiment and embodiment 1 is that a regulating component is arranged between the rotating plate 12 and the coal storage bin 21, and the regulating component includes a support plate 18, a hydraulic telescopic rod 19 and a ventilation hole 20. The support plate 18 is installed on the outside of the coal storage bin 21, and the hydraulic telescopic rod 19 is installed between the support plate 18 and the rotating plate 12, and the hydraulic telescopic rod 19 passes through the ventilation hole 20 and extends to the inside of the coal storage bin 21.

[0032] The coal enters from the feed port 11 and then slides to the upper end of the rotating plate 12. At this time, the hydraulic telescopic rod 19 starts to work. Since the hydraulic telescopic rod 19 is hingedly connected between the rotating plate 12 and the support plate 18, the angle of the rotating plate 12 inside the coal storage bin 21 is adjusted. In this way, the parabola of the coal falling from the rotating plate 12 is changed, so that the fallen coal can be evenly laid on the inner side of the coal storage bin 21, which can avoid the problem of unevenness and insufficient utilization of the internal space when the coal is stored inside the coal storage bin 21.

[0033] Example 3, reference Figure 3-6 The difference between this embodiment and Embodiment 1 and Embodiment 2 is that a feed plate 3 is obliquely installed on the coal storage bin 21 at the feed port 11, a water tank 1 is installed at the upper end of the feed plate 3 through a water tank rack 2, and a nozzle 13 is installed at the bottom of the water tank rack 2.

[0034] A box body 7 is installed at the lower end of the feed plate 3, and a plurality of through-type leakage holes 4 are distributed in a linear array on the upper part of the feed plate 3. A plurality of slot holes 5 are evenly distributed near the lower end of the feed plate 3, and a reflux component 6 is rotatably arranged on the inner side of the slot hole 5, and a driving component is arranged between the outer sides of the plurality of groups of reflux components 6.

[0035] The reflux component 6 includes absorbent cotton 61, a leakage hole 62 and an inner tube 63. The inner tube 63 is rotatably arranged on the inner side of the slot 5. The absorbent cotton 61 is wrapped on the outer side of the inner tube 63. The leakage hole 62 is through-opened on the inner tube 63 and the absorbent cotton 61. The driving component includes a stepper motor 23, a chain 24 and a gear 25. The gear 25 is fixedly installed at the end position of the inner tube 63 through a connecting shaft. The chain 24 is sleeved on the outside of multiple gears 25. The stepper motor 23 is installed on one side of the box body 7 through a motor frame. The end of the output shaft of the stepper motor 23 is connected to one of the gears 25.

[0036] Since coal dust will appear when entering the coal storage bin 21, and there is a risk of explosion when the coal dust comes into contact with open flames, it is necessary to use water spraying to reduce dust. However, once all the water used for dust reduction flows into the coal storage bin 21, the coal will stick together and form coal cakes during the extrusion process. Secondly, the high water content of the coal will reduce the calorific value of the coal, affecting the subsequent use of the coal.

[0037] To this end, an inclined feed plate 3 is installed on one side of the feed port 11. When the coal passes through the lower end of the water tank 1, the water sprayed from the nozzle 13 will wet the sliding coal. The wetted coal will not have the problem of coal dust being raised during the extrusion process. However, the amount of water used for wetting cannot be controlled. Therefore, a plurality of leakage holes 4 are provided on the feed plate 3. When the coal passes through the leakage holes 4, excess water will enter the box body 7 provided at the lower end from the leakage holes 4 for storage. At the same time, a pipe body is connected to one end of the box body 7 for timely discharge of water.

[0038] The coal ash particles attached to the surface of the coal blocks absorb a large amount of moisture. When these coal blocks come into contact with the absorbent cotton 61 on the inner side of the slot hole 5, the moisture is absorbed by the absorbent cotton 61. At the same time, fine coal slag passes through the leakage hole 62 and enters the inner tube 63. During this process, the stepper motor 23 transfers kinetic energy to the chain 24 through one of the gears 25, and the chain 24 drives the remaining gears 25 to rotate, thereby realizing the synchronous rotation of multiple inner tubes 63. During the rotation, the position of the leakage hole 62 on the inner tube 63 changes from the original upward direction to the downward direction. The coal slag originally collected in the inner tube 63 falls to the inner side of the box body 7 for centralized collection. The water absorbed by the absorbent cotton 61 is squeezed between the lower edge of the slot hole 5 during the rotation process, and the moisture in the absorbent cotton 61 is squeezed into the box body 7 by the external force generated during the squeezing.

[0039] Example 4, reference Figure 3-5 The difference between this embodiment and Embodiment 1, Embodiment 2 and Embodiment 3 is that a plurality of receiving hoppers 8 are installed at the bottom of the box body 7, and the positions of the receiving hoppers 8 match the positions of the upper end slots 5. A scraping assembly 9 is arranged in the receiving hopper 8. The scraping assembly 9 includes a friction plate 91, a flap 92, a rotating shaft 93 and a through hole 94. The rotating shaft 93 is fixedly installed on one side of the box body 7. The flaps 92 are distributed in a ring array on the outside of the rotating shaft 93. The other end of the flap 92 is connected to the friction plate 91. The friction plate 91 and the absorbent cotton 61 at the upper end are squeezed and contacted with each other. The through hole 94 is opened on the flap 92.

[0040] Scrapers 10 are symmetrically installed on both sides of the receiving hopper 8, brushes 26 are arranged on the opposite side of the scraper 10, and there is a spacing between each group of brushes 26. A discharge pipe is installed at the bottom of the receiving hopper 8, and the discharge pipe is controlled by a valve.

[0041] During the process of the absorbent cotton 61 absorbing water, a large amount of coal dust will adhere to its surface, which not only reduces the water absorption capacity of the absorbent cotton 61 but also causes damage to the absorbent cotton 61.

[0042] To this end, a receiving hopper 8 is provided at the bottom of the box body 7, and a scraping assembly 9 is provided on the inner side of the receiving hopper 8. The scraping assembly 9 consists of a friction plate 91, a flap 92, a rotating shaft 93 and a through hole 94. Since the friction plate 91 is installed on the top of the flap 92, and the friction plate 91 will contact with the rotating absorbent cotton 61, friction will be generated during the contact between the friction plate 91 and the absorbent cotton 61. With the help of the friction, the coal dust on the surface of the absorbent cotton 61 is peeled off, and the coal dust will pass through the through hole 94 on the flap 92 and fall into the inner side of the receiving hopper 8 for centralized collection. During the continuous rotation of the friction plate 91, it will contact with the brushes 26 on both sides. In this way, the brushes 26 will brush off the coal dust on the surface of the friction plate 91, and there is a gap between the brushes 26, which is conducive to the larger coal dust particles to pass through the gap and fall into the receiving hopper 8 smoothly.

[0043] The working principle of the device is: The upper cover of the coal storage bin 21 is removable. When it is necessary to use a lifting device to extract the coal inside the coal storage bin 21, the upper cover can be opened, and the coal enters from the feed port 11. The coal then slides to the upper end of the turntable 12. At this time, the hydraulic telescopic rod 19 starts to work. Since the hydraulic telescopic rod 19 is hingedly connected between the turntable 12 and the support plate 18, the angle of the turntable 12 inside the coal storage bin 21 is adjusted. In this way, the parabola of the coal falling from the turntable 12 is changed, so that the fallen coal can be evenly laid on the inner side of the coal storage bin 21, which can avoid the problem of unevenness and insufficient utilization of the internal space when the coal is stored inside the coal storage bin 21.

[0044] Because the flammable gases and coal dust contained in coal are too concentrated, it is very dangerous to encounter open flames, and may even cause explosions.

[0045] To this end, when the rotating plate 12 reciprocates, the valve plate 15 on one side of the coal storage bin 21 is driven to move up and down inside the square groove 17. During the displacement of the valve plate 15, the ventilation hole 20 is opened and closed. In this way, the carbon dioxide gas filled into the gas pipe 22 is an inert gas. After the carbon dioxide gas enters the coal storage bin 21, it will squeeze out the combustible gas, thereby achieving a dilution effect. At the same time, intermittent introduction of gas can promote the mixing of gas molecules, so that the diluent gas and the diluted gas can be mixed more evenly. This mixing method can reduce the situation of local concentration being too high or too low, thereby improving the uniformity of mixing. Secondly, intermittent introduction of gas can avoid excessive dilution. If the dilution gas is continuously introduced, the concentration of the diluted gas may be too low, affecting its normal physical or chemical properties. Intermittent introduction can ensure the dilution effect while avoiding the problem of excessive dilution. Finally, intermittent introduction of gas can save the use of dilution gas. Compared with continuous introduction of dilution gas, intermittent introduction can reduce the consumption of dilution gas while achieving the same dilution effect, thereby reducing costs.

[0046] Since coal dust will appear when entering the coal storage bin 21, and there is a risk of explosion when the coal dust comes into contact with open flames, it is necessary to use water spraying to reduce dust. However, once all the water used for dust reduction flows into the coal storage bin 21, the coal will stick together and form coal cakes during the extrusion process. Secondly, the high water content of the coal will reduce the calorific value of the coal, affecting the subsequent use of the coal.

[0047] To this end, an inclined feed plate 3 is installed on one side of the feed port 11. When the coal passes through the lower end of the water tank 1, the water sprayed from the nozzle 13 will wet the sliding coal. The wetted coal will not have the problem of coal dust being raised during the extrusion process. However, the amount of water used for wetting cannot be controlled. Therefore, a plurality of leakage holes 4 are provided on the feed plate 3. When the coal passes through the leakage holes 4, excess water will enter the box body 7 provided at the lower end from the leakage holes 4 for storage. At the same time, a pipe body is connected to one end of the box body 7 for timely discharge of water.

[0048] The coal ash particles attached to the surface of the coal blocks absorb a large amount of moisture. When these coal blocks come into contact with the absorbent cotton 61 on the inner side of the slot hole 5, the moisture is absorbed by the absorbent cotton 61. At the same time, fine coal slag passes through the leakage hole 62 and enters the inner tube 63. During this process, the stepper motor 23 transfers kinetic energy to the chain 24 through one of the gears 25, and the chain 24 drives the remaining gears 25 to rotate, thereby realizing the synchronous rotation of multiple inner tubes 63. During the rotation, the position of the leakage hole 62 on the inner tube 63 changes from the original upward direction to the downward direction. The coal slag originally collected in the inner tube 63 falls to the inner side of the box body 7 for centralized collection. The water absorbed by the absorbent cotton 61 is squeezed between the lower edge of the slot hole 5 during the rotation process, and the moisture in the absorbent cotton 61 is squeezed into the box body 7 by the external force generated during the squeezing.

[0049] During the process of the absorbent cotton 61 absorbing water, a large amount of coal dust will adhere to its surface, which not only reduces the water absorption capacity of the absorbent cotton 61 but also causes damage to the absorbent cotton 61.

[0050] To this end, a receiving hopper 8 is provided at the bottom of the box body 7, and a scraping assembly 9 is provided on the inner side of the receiving hopper 8. The scraping assembly 9 consists of a friction plate 91, a flap 92, a rotating shaft 93 and a through hole 94. Since the friction plate 91 is installed on the top of the flap 92, and the friction plate 91 will contact with the rotating absorbent cotton 61, friction will be generated during the contact between the friction plate 91 and the absorbent cotton 61. With the help of the friction, the coal dust on the surface of the absorbent cotton 61 is peeled off, and the coal dust will pass through the through hole 94 on the flap 92 and fall into the inner side of the receiving hopper 8 for centralized collection. During the continuous rotation of the friction plate 91, it will contact with the brushes 26 on both sides. In this way, the brushes 26 will brush off the coal dust on the surface of the friction plate 91, and there is a gap between the brushes 26, which is conducive to the larger coal dust particles to pass through the gap and fall into the receiving hopper 8 smoothly.

[0051] The above description is only a preferred specific implementation manner of the present invention, but the protection scope of the present invention is not limited thereto. Any technician familiar with the technical field can make equivalent replacements or changes according to the technical scheme and inventive concept of the present invention within the technical scope disclosed by the present invention, which should be covered by the protection scope of the present invention.

Claims

1. A mining storage device, comprising a coal storage bin (21), the upper cover of which is detachably connected, characterized in that: A feed port (11) and a ventilation hole (20) are sequentially provided on one side of the coal storage bin (21) from top to bottom, a rotating plate (12) is hingedly connected to the lower eaves of the feed port (11), and a flammable gas protection component is provided between one side of the rotating plate (12) and the inner wall of the coal storage bin (21); The flammable gas protection assembly comprises an elastic connecting rope (14), a valve plate (15), a gas dilution hole (16), a square groove (17) and a gas transmission pipe (22); The square groove (17) is formed on the inner wall of the coal storage bin (21); the gas dilution hole (16) is formed through the bottom of the square groove (17); the gas dilution hole (16) and the gas transmission pipe (22) are connected to each other; the elastic connecting rope (14) is connected between the rotating plate (12) and the valve plate (15); and the valve plate (15) is slidably disposed in the square groove (17).

2. The mining storage device according to claim 1 is characterized in that , a regulating component is provided between the rotating plate (12) and the coal storage bin (21); The regulating assembly comprises a support plate (18), a hydraulic telescopic rod (19) and a ventilation hole (20); the support plate (18) is mounted outside the coal storage bin (21); the hydraulic telescopic rod (19) is mounted between the support plate (18) and the rotating plate (12); and the hydraulic telescopic rod (19) passes through the ventilation hole (20) and extends to the interior of the coal storage bin (21).

3. The mining storage device according to claim 2 is characterized in that A feed plate (3) is obliquely mounted on the coal storage bin (21) at the feed port (11); a water tank (1) is mounted on the upper end of the feed plate (3) via a water tank frame (2); a nozzle (13) is mounted on the bottom of the water tank frame (2); a box body (7) is mounted on the lower end of the feed plate (3); and a plurality of through-type leakage holes (4) are distributed in a linear array on the upper portion of the feed plate (3).

4. The mining storage device according to claim 3 is characterized in that A plurality of slots (5) are evenly distributed near the lower end of the feed plate (3), a reflux assembly (6) is rotatably arranged inside the slot (5), and a driving assembly is arranged between the outer sides of multiple groups of the reflux assemblies (6).

5. The mining storage device according to claim 4 is characterized in that , the reflux component (6) comprises a water-absorbing cotton (61), a leakage hole (62) and an inner tube (63); The inner tube (63) is rotatably arranged inside the slot hole (5), the absorbent cotton (61) is wrapped around the outside of the inner tube (63), and the leakage hole (62) is opened in a through-type manner on the inner tube (63) and the absorbent cotton (61).

6. The mining storage device according to claim 5 is characterized in that , the driving assembly comprises a stepping motor (23), a chain (24) and a gear (25); The gear (25) is fixedly mounted at the end of the inner tube (63) via a connecting shaft, the chain (24) is sleeved on the outside of a plurality of the gears (25), the stepper motor (23) is mounted on one side of the box (7) via a motor frame, and the end of the output shaft of the stepper motor (23) is connected to one of the gears (25).

7. The mining storage device according to claim 6 is characterized in that , a plurality of receiving hoppers (8) are installed at the bottom of the box body (7), and the positions of the receiving hoppers (8) match the positions of the upper slot holes (5), and a scraping assembly (9) is arranged in the receiving hopper (8); The scraping assembly (9) comprises a friction plate (91), a flap (92), a rotating shaft (93) and a through hole (94); the rotating shaft (93) is fixedly mounted on one side of the housing (7); the flaps (92) are distributed in a ring array on the outside of the rotating shaft (93); the other end of the flap (92) is connected to the friction plate (91); the friction plate (91) and the absorbent cotton (61) at the upper end are in compression contact with each other; and the through hole (94) is provided on the flap (92).

8. The mining storage device according to claim 7 is characterized in that Scrapers (10) are symmetrically installed on both sides of the receiving hopper (8), brushes (26) are arranged on the opposite side of the scraper (10), and a spacing is arranged between each group of brushes (26).

9. The mining storage device according to claim 1, characterized in that The other end of the gas delivery pipe (22) is connected to a gas supply device, and the gas supplied is carbon dioxide gas.

10. The mining storage device according to claim 7, characterized in that , a discharge pipe is installed at the bottom of the receiving hopper (8), and the discharge pipe is controlled by a valve.

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