Belt feed for ore bin bottom bin

Abstract

The application discloses a kind of ore bin well bottom powder ore bin pressure reducing feeding device, ore bin well bottom powder ore bin pressure reducing feeding device includes box, stirring assembly and drive assembly, box has first chamber, first opening and second opening, first opening and second opening are communicated with first chamber, first opening is used for feeding, second opening is used for discharging, stirring assembly is arranged in first chamber, stirring assembly includes pressure-bearing shaft and feeding piece, feeding piece is arranged on pressure-bearing shaft, pressure-bearing shaft extends along first direction and can rotate around first direction to drive feeding piece to rotate around first direction, so that the material in first chamber is stirred to make the material in first chamber easily discharged from second opening, drive assembly is connected with pressure-bearing shaft, and drive assembly is used to drive pressure-bearing shaft to rotate along first direction.The ore bin well bottom powder ore bin pressure reducing feeding device of the embodiment of the application can effectively solve the problem of powder ore bin discharge port blockage and the problem of excessive powder pressure on the transport equipment.

Description

TECHNICAL FIELD

[0001] The present application relates to the technical field of ore hoisting and transportation in metal and non-metal underground mines, in particular to a reduced-pressure ore feeding device for a powder ore bin at the bottom of a skip shaft. BACKGROUND

[0002] When a skip shaft hoists ore in an underground mine, the powder ore scattered by the skip falls into the powder ore bin at the bottom of the shaft, and after the powder ore bin is filled with scattered powder ore, a transportation device is used to transport the powder ore to the skip ore loading belt and recover the powder ore.

[0003] In related technologies, the discharge opening at the bottom end of the powder ore bin is directly connected to the feeding opening of the transportation device, and the transportation device not only has to withstand a large amount of powder ore pressure, but if the powder ore has high viscosity and forms clumps, the powder ore bin discharge opening will have unstable ore feeding, with more or less ore, and even cause the powder ore bin discharge opening to be blocked. SUMMARY

[0004] The present application aims to at least partially solve one of the technical problems in related technologies. To this end, an embodiment of the present application proposes a reduced-pressure ore feeding device for a powder ore bin at the bottom of a skip shaft, which can effectively solve the problem of powder ore bin discharge opening blockage and the problem of excessive powder ore pressure on the transportation device.

[0005] The reduced-pressure ore feeding device for a powder ore bin at the bottom of a skip shaft according to an embodiment of the present application includes a box body and a powder ore bin, the powder ore bin has material inside, the box body has a first chamber and is in communication with the powder ore bin, so that the material in the powder ore bin can enter the first chamber; an agitating assembly is arranged in the first chamber, the agitating assembly includes a pressure-bearing shaft and a feeding member, the feeding member is arranged on the pressure-bearing shaft, the pressure-bearing shaft extends along a first direction and can rotate around the first direction to drive the feeding member to rotate around the first direction, thereby agitating the material in the first chamber to facilitate the material in the first chamber to be discharged from the second opening; a driving assembly is connected to the pressure-bearing shaft, and the driving assembly is used to drive the pressure-bearing shaft to rotate along the first direction.

[0006] The reduced-pressure ore feeding device for a powder ore bin at the bottom of a skip shaft according to an embodiment of the present application, the driving assembly drives the pressure-bearing shaft to rotate around the first direction to drive the feeding member to rotate around the first direction, to agitate the material in the first chamber and disturb the material in the powder ore bin, so that the material in the first chamber can be smoothly and continuously discharged and the material in the powder ore bin can be smoothly and continuously entered into the first chamber, effectively solving the problem of material accumulation and blockage in the powder ore bin, improving the efficiency of the material in the powder ore bin entering the first chamber, and avoiding the problem of the transportation device receiving the material in the first chamber and the material in the powder ore bin having excessive material pressure.

[0007] In some embodiments, the pressure-bearing shaft comprises a first channel extending from an outer circumferential surface of the pressure-bearing shaft towards a center of the pressure-bearing shaft, and the feeding member is disposed in the first channel and is movable in the first channel to extend an end of the feeding member out of the first channel.

[0008] In some embodiments, the pressure-bearing shaft comprises a first hole at one end of the pressure-bearing shaft, and the first hole is in communication with the first channel, and the first hole is configured to pass hydraulic oil into the first channel, and when the hydraulic oil flows into the first channel, the end of the feeding member extends out of the first channel, and when the hydraulic oil flows out of the first channel, the end of the feeding member is retracted into the first channel.

[0009] In some embodiments, the pressure-bearing shaft comprises a second channel extending along the extension direction of the first channel, a third channel extending along the extension direction of the first channel, and the third channel is in communication with the first channel and the second channel, and the pressure-bearing shaft comprises a second hole at the other end of the pressure-bearing shaft, and the second hole is in communication with the second channel, and the second hole is configured to pass hydraulic oil into the second channel.

[0010] The feeding member comprises a column, a connecting body, and a plug body, the connecting body connects the column and the plug body, the column is located in the first channel, and an end of the column extends out of the first channel away from an end of the third channel, the plug body is located in the second channel and is movable in the second channel, and the connecting body is located in the third channel and is movable in the third channel, the first channel has hydraulic oil therein, when the second channel has no hydraulic oil therein, the end of the column extends out of the first channel away from the end of the third channel, and the hydraulic oil flows out of the first channel, and when the second channel has hydraulic oil therein, the end of the feeding member is retracted into the first channel.

[0011] In some embodiments, the cross-sectional area of the third channel is smaller than the flow area of the first channel and the flow area of the second channel.

[0012] In some embodiments, the pressure-bearing shaft further comprises a third hole extending along the extension direction of the pressure-bearing shaft and in communication with the first hole and the first channel, and a fourth hole extending along the extension direction of the pressure-bearing shaft and in communication with the second hole and the second channel.

[0013] In some embodiments, the ore bin bottom powder bin pressure relief feeding device further comprises a hydraulic assembly, the hydraulic assembly having a third chamber, a first port and a second port, the first port and the second port being in communication with the third chamber, the third chamber having hydraulic oil therein; a first communication pipe and a second communication pipe, the first communication pipe being in communication with the third chamber and the first port, the second communication pipe being in communication with the third chamber and the second port.

[0014] In some embodiments, the feeding member is a plurality, the plurality of feeding members being arranged at intervals along the extension direction of the pressure bearing shaft, the first channel being a plurality and corresponding to the plurality of feeding members one by one, the plurality of first channels being in communication with the third port, the second channel being a plurality and corresponding to the plurality of feeding members one by one, the plurality of second channels being in communication with the fourth port.

[0015] In some embodiments, the ore bin bottom powder bin pressure relief feeding device further comprises a support frame, the support frame being used for supporting the box body and the driving assembly.

[0016] In some embodiments, the ore bin bottom powder bin pressure relief feeding device further comprises a mounting seat, the mounting seat being at least two, at least two mounting seats being oppositely arranged, one end of the pressure bearing shaft being mounted on one mounting seat, the other end of the pressure bearing shaft being mounted on the mounting seat oppositely arranged with one mounting seat, the shaft end driven by the pressure bearing shaft being connected with the driving assembly. BRIEF DESCRIPTION OF DRAWINGS

[0017] Figure 1 is a main cross-sectional view of the ore bin bottom powder bin pressure relief feeding device according to an embodiment of the present application.

[0018] Figure 2 is a top view of the ore bin bottom powder bin pressure relief feeding device according to an embodiment of the present application.

[0019] Figure 3 is a right cross-sectional view of the ore bin bottom powder bin pressure relief feeding device according to an embodiment of the present application.

[0020] Figure 4 is a work position view of the feeding member in the ore bin bottom powder bin pressure relief feeding device according to an embodiment of the present application.

[0021] Figure 5 is a work position view of the feeding member in the ore bin bottom powder bin pressure relief feeding device according to an embodiment of the present application.

[0022] Figure 6 is a work position view of the feeding member in the ore bin bottom powder bin pressure relief feeding device according to an embodiment of the present application.

[0023] Figure 7is a work station view of a feeding member in a skip shaft bottom fine ore bin pressure relief feeding device according to an embodiment of the present application.

[0024] Fig. 1 is a schematic view of a skip shaft bottom fine ore bin pressure relief feeding device according to an embodiment of the present application. Fig. 1 is a schematic view of a skip shaft bottom fine ore bin pressure relief feeding device according to an embodiment of the present application. Fig. 1 is a schematic view of a skip shaft bottom fine ore bin pressure relief feeding device according to an embodiment of the present application.

[0025] Fig. 1 is a schematic view of a skip shaft bottom fine ore bin pressure relief feeding device according to an embodiment of the present application. Fig. 1 is a schematic view of a skip shaft bottom fine ore bin pressure relief feeding device according to an embodiment of the present application.

[0026] Fig. 1 is a schematic view of a skip shaft bottom fine ore bin pressure relief feeding device according to an embodiment of the present application. Figures 1-3 Fig. 1 is a schematic view of a skip shaft bottom fine ore bin pressure relief feeding device according to an embodiment of the present application. Fig. 1 is a schematic view of a skip shaft bottom fine ore bin pressure relief feeding device according to an embodiment of the present application.

[0027] Fig. 1 is a schematic view of a skip shaft bottom fine ore bin pressure relief feeding device according to an embodiment of the present application. Figure 1 Fig. 1 is a schematic view of a skip shaft bottom fine ore bin pressure relief feeding device according to an embodiment of the present application. Figure 2 Fig. 1 is a schematic view of a skip shaft bottom fine ore bin pressure relief feeding device according to an embodiment of the present application. Figure 1 Fig. 1 is a schematic view of a skip shaft bottom fine ore bin pressure relief feeding device according to an embodiment of the present application. Fig. 1 is a schematic view of a skip shaft bottom fine ore bin pressure relief feeding device according to an embodiment of the present application.

[0028] Fig. 1 is a schematic view of a skip shaft bottom fine ore bin pressure relief feeding device according to an embodiment of the present application. Figure 1 Fig. 1 is a schematic view of a skip shaft bottom fine ore bin pressure relief feeding device according to an embodiment of the present application. Figure 3 Fig. 1 is a schematic view of a skip shaft bottom fine ore bin pressure relief feeding device according to an embodiment of the present application.As shown, the fine ore bin 4 is located above the box 1, and the transportation device 5 is arranged below the box 1. The fine ore bin 4 has a second chamber 41 and a third opening 42, the third opening 42 is in communication with the second chamber 41 and the first opening 12, the second chamber 41 is suitable for storing materials, the materials in the second chamber 41 fall into the first chamber 11 through the third opening 42, the agitation assembly 2 agitates the materials in the first chamber 11 and disturbs the materials at the third opening 42 in the second chamber 41 to avoid the materials from blocking at the third opening 42, so that the materials can stably and continuously fall on the transportation device 5 through the third opening 42, the first opening 12, and the second opening 13.

[0029] The pressure relief feeding device of the skip shaft bottom fine ore bin in the embodiment of the present application, the driving assembly 3 drives the pressure bearing shaft 21 to rotate in the first direction to drive the feeding member 22 to rotate in the first direction, so as to agitate the materials in the first chamber 11 and disturb the materials in the fine ore bin 4, so that the materials in the first chamber 11 can be smoothly and continuously discharged, and the materials in the fine ore bin 4 can be smoothly and continuously fed into the first chamber 11, effectively solving the problems of material accumulation and blocking in the fine ore bin 4, improving the efficiency of the materials in the fine ore bin 4 into the first chamber 11, and avoiding the problem of excessive material pressure on the transportation device 5.

[0030] In some embodiments, as shown in FIG. 1, Figures 4-7 As shown, the pressure bearing shaft 21 includes a first channel 211 extending from the outer circumferential surface of the pressure bearing shaft 21 towards the center of the pressure bearing shaft 21, and the feeding member 22 is arranged in the first channel 211 and can move in the first channel 211 to extend one end of the feeding member 22 out of the first channel 211.

[0031] Specifically, the feeding member 22 is arranged in the first channel 211, and the outer circumferential surface of the feeding member 22 is in contact with the inner circumferential surface of the first channel 211. The feeding member 22 can move in the first channel 211 along the extension direction of the first channel 211, and the feeding member 22 performs reciprocating motion of extension and retraction in the first channel 211, which not only agitates the materials in the first chamber 11 and disturbs the materials at the third opening 42 in the second chamber 41 to prevent the materials from blocking in the first chamber 11, the second chamber 41 and the third opening 42, but also reduces the wear of the feeding member 22, improves the service life of the feeding member 22, and reduces the energy consumption of the driving assembly 3.

[0032] In some embodiments, the pressure bearing shaft 21 is two, and the two pressure bearing shafts 21 are arranged in the first chamber 11, and the two pressure bearing shafts 21 are arranged in the second direction (such as the direction of the arrow A in FIG. 1) and the third direction (such as the direction of the arrow C in FIG. 1) of the first chamber 11. Figure 2The two pressure-bearing shafts 21 are oppositely and spacedly arranged on the upper part of the box body 1, the feeding members 22 on the two pressure-bearing shafts 21 are staggered, and the rotation directions of the two pressure-bearing shafts 21 are opposite, so as to sufficiently agitate the material in the first chamber 11 and sufficiently disturb the material in the second chamber 41 at the third opening 42, and improve the agitation and disturbance efficiency.

[0033] The pressure-bearing shaft 21 has sufficient strength and rigidity, and bears the downward pressure generated by the material in the first chamber 11. The bulk arch ore pressure calculation formula is P = πh(h 2 + 3r 2 )γ / 6, P is the ore pressure borne by the support surface, h is the spherical height, r is the support surface radius, and γ is the ore weight. In the formula, h = a + br (a and b are constants), that is, h is linearly related to r, and P is exponentially related to r. The downward pressure borne by the transport device 5 on the powder ore is the bulk arch ore pressure, and the pressure borne is related to the cross-sectional size of the second opening 13, that is, the cross-sectional size of the first chamber 11.

[0034] After the two pressure-bearing shafts 21 are arranged, the pressure borne by the transport device 5 changes from one large bulk arch ore pressure to three small bulk arch ore pressures (the chord length of the small arch is about 1 / 4 of the chord length of the large arch), and the pressure of the large arch is much larger than that of the small arch (the pressure is exponentially related to the chord length). The pressure-bearing shaft 21 and the box body 1 have sufficient strength and rigidity, and the pressure-bearing shaft 21 shares the difference between one large bulk arch ore pressure and three small bulk arch ore pressures, and transmits it to the concrete foundation. The pressure-bearing shaft 21 shares most of the pressure of the powder ore, and the transport device 5 bears a small part of the pressure of the powder ore, thereby reducing the driving power of the transport device 5, and being high in efficiency, low in energy consumption, energy-saving, environmentally friendly and low-carbon.

[0035] In some embodiments, as shown in Figure 1 and Figure 2 , the driving assembly 3 includes two driving members 31, and the two driving members 31 are arranged one by one with the two pressure-bearing shafts 21. The driving member 31 drives the pressure-bearing shaft 21 to rotate in the first direction to drive the feeding member 22 to rotate in the first direction.

[0036] In some embodiments, as shown in Figure 3 , one end of the feeding member 22 extends in a direction away from the pressure-bearing shaft 21, and the other end of the feeding member 22 is matched with the outer circumferential surface of the pressure-bearing shaft 21.

[0037] In some embodiments, as shown in Figure 2 , the pressure-bearing shaft 21 includes a first hole 212, and the first hole 212 is located at one end of the pressure-bearing shaft 21 (as shown in Figure 1The first hole 212 is located at one end of the pressure bearing shaft 21 (as shown in the left end of the pressure bearing shaft 21), and the first hole 212 is in communication with the first channel 211. The first hole 212 is used for introducing hydraulic oil, and the hydraulic oil can flow into the first channel 211. When the hydraulic oil flows into the first channel 211, one end of the feeding member 22 can extend out of the first channel 211. When the hydraulic oil flows out of the first channel 211, one end of the feeding member 22 can be retracted into the first channel 211.

[0038] Specifically, the first hole 212 extends along the extension direction of the pressure bearing shaft 21, and the first hole 212 is in communication with the first channel 211. When the hydraulic oil flows into the first channel 211 through the first hole 212 and fills the space between the bottom of the first channel 211 and the feeding member 22, one end of the feeding member 22 away from the bottom of the first channel 211 extends out of the first channel 211 along the extension direction of the first channel 211 to agitate the material in the first chamber 11. At this time, the hydraulic oil is high-pressure hydraulic oil. When the hydraulic oil in the first channel 211 flows out through the first hole 212, one end of the feeding member 22 away from the bottom of the first channel 211 moves toward the bottom of the first channel 211 along the extension direction of the first channel 211 to retract the feeding member 22 into the first channel 211, thereby reducing the contact between the feeding member 22 and the material and reducing the wear of the feeding member 22.

[0039] In some embodiments, as shown, Figures 2-7 The pressure bearing shaft 21 includes a second channel 213, a second hole 214, and a third channel 215. The second channel 213 extends along the extension direction of the first channel 211. The third channel 215 extends along the extension direction of the first channel 211 and is in communication with the first channel 211 and the second channel 213. The second hole 214 is located at the other end of the pressure bearing shaft 21 (as shown in the right end of the pressure bearing shaft 21), and the second hole 214 is in communication with the second channel 213. The second hole 214 is used for introducing hydraulic oil. Figure 1

[0040] The feeding member 22 includes a column body 221, a connecting body 222, and a plug body 223. The connecting body 222 connects the column body 221 and the plug body 223. The column body 221 is located in the first channel 211, and one end of the column body 221 can extend out of the first channel 211 away from one end of the third channel 215. The plug body 223 is located in the second channel 213 and can move in the second channel 213. The connecting body 222 is located in the third channel 215 and can move in the third channel 215. When the first channel 211 has hydraulic oil and the second channel 213 has no hydraulic oil, one end of the column body 221 extends out of the first channel 211 away from one end of the third channel 215. When the hydraulic oil flows out of the first channel 211 and the second channel 213 has hydraulic oil, one end of the feeding member 22 is retracted into the first channel 211.​

[0041] Specifically, the column 221 is connected to one end of the connecting body 222 near the bottom of the first channel 211, the other end of the connecting body 222 is connected to the plug body 223, the cross-sectional area of the column 221 is larger than that of the connecting body 222, and the cross-sectional area of the plug body 223 is also larger than that of the connecting body 222. The outer circumferential surface of the column 221 is in contact with the inner circumferential surface of the first channel 211, and the column 221 can move in the first channel 211 along the extension direction of the first channel 211. The outer circumferential surface of the plug body 223 is in contact with the inner circumferential surface of the second channel 213, and the plug body 223 can move in the second channel 213 along the extension direction of the second channel 213.

[0042] The extension length of the connecting body 222 is larger than that of the third channel 215, the outer circumferential surface of the connecting body 222 is in contact with the inner circumferential surface of the third channel 215 so that the first channel 211 and the second channel 213 are not communicated, and the connecting body 222 can move in the third channel 215 along the extension direction of the third channel 215, thereby driving the column 221 to move in the first channel 211 along the extension direction of the first channel 211, and the plug body 223 to move in the second channel 213 along the extension direction of the second channel 213.

[0043] The first hole 212 is communicated with the bottom of the first channel 211, and the hydraulic oil is injected into the first channel 211 through the first hole 212. When there is no hydraulic oil in the second channel 213, the hydraulic oil in the first channel 211 generates a force on the end of the column 221 adjacent to the connecting body 222, so that the column 221 moves away from the bottom of the first channel 211, and the connecting body 222 and the plug body 223 move together with the column 221 until the plug body 223 reaches the limited position at the top of the second channel 213, at this time, the end of the column 221 away from the connecting body 222 extends out of the first channel 211 to agitate the material.

[0044] The second hole 214 is communicated with the top of the second channel 213, and the hydraulic oil (high pressure) is injected into the second channel 213 through the second hole 214. When the hydraulic oil (low pressure) flows out of the first channel 211, the hydraulic oil in the second channel 213 generates a force on the end of the plug body 223 adjacent to the connecting body 222, so that the plug body 223 moves towards the bottom of the second channel 213, and the connecting body 222 and the column 221 move together with the plug body 223 until the end of the column 221 adjacent to the connecting body 222 reaches the limited position at the bottom of the first channel 211, at this time, the end of the column 221 away from the connecting body 222 is withdrawn into the first channel 211. Among them, the hydraulic oil injected into the second channel 213 through the second hole 214 is high-pressure hydraulic oil, and the hydraulic oil flowing out of the first channel 211 is low-pressure hydraulic oil.

[0045] In some embodiments, the cross-sectional area of the third channel 215 is smaller than the flow area of the first channel 211 and the flow area of the second channel 213.

[0046] Specifically, the cross-sectional area of the column body 221 and the plug body 223 is larger than the cross-sectional area of the connecting body 222, so that the column body 221 is not easy to be separated from the first channel 211 when moving in the first channel 211, and the plug body 223 is not easy to be separated from the second channel 213 when moving in the second channel 213. The cross-sectional area of the third channel 215 is smaller than the flow area of the first channel 211, so that when the hydraulic oil (high pressure) is injected into the first channel 211 through the first hole 212, a greater force can be generated on the end of the column body 221 adjacent to the connecting body 222, and increasing the amount of injected hydraulic oil can quickly fill the space between the first channel 211 and the column body 221, at which time the hydraulic oil injected into the first channel 211 through the first hole 212 is high-pressure hydraulic oil.

[0047] The cross-sectional area of the third channel 215 is smaller than the flow area of the second channel 213, so that when high-pressure hydraulic oil is injected into the second channel 213 through the second hole 214, a greater force can be generated on the end of the plug body 223 adjacent to the connecting body 222, and increasing the amount of injected hydraulic oil can quickly fill the space between the second channel 213 and the plug body 223. In this way, the column body 221 can be quickly extended and retracted in the first channel 211, improving the stirring efficiency of the stirring assembly 2 on the material and reducing the wear of the column body 221 by the material.

[0048] In some embodiments, the pressure-bearing shaft 21 further comprises a third hole 216 and a fourth hole 217, the third hole 216 extends along the extension direction of the pressure-bearing shaft 21 and is in communication with the first hole 212 and the first channel 211, and the fourth hole 217 extends along the extension direction of the pressure-bearing shaft 21 and is in communication with the second hole 214 and the second channel 213.

[0049] Specifically, the third hole 216 is located between the first hole 212 and the first channel 211, and the third hole 216 can conveniently communicate each first channel 211.

[0050] The fourth hole 217 is located between the second hole 214 and the second channel 213, and the fourth hole 217 can conveniently communicate each second channel 213.

[0051] In some embodiments, as shown in FIG. 2, the pressure-bearing shaft 21 comprises a plurality of first channels 211 and a plurality of second channels 213, and the first channels 211 and the second channels 213 are arranged in parallel. Figure 2As shown, the ore bin bottom powder bin pressure relief feeding device further comprises a hydraulic assembly 6, a first communicating pipe 7 and a second communicating pipe 8. The hydraulic assembly 6 has a third chamber 61, a first port 62 and a second port 63, the first port 62 and the second port 63 are in communication with the third chamber 61, and the third chamber 61 has hydraulic oil therein. The first communicating pipe 7 communicates the third chamber 61 and the first hole 212, and the second communicating pipe 8 communicates the third chamber 61 and the second hole 214.

[0052] Specifically, the ore bin bottom powder bin pressure relief feeding device further comprises a third communicating pipe 91 and a fourth communicating pipe 92, and the hydraulic assembly 6 further comprises a third port 64 and a fourth port 65. The first communicating pipe 7 communicates the third chamber 61 and the first hole 212 on one of the pressure bearing shafts 21, the third communicating pipe 91 communicates the third chamber 61 and the first hole 212 on the other pressure bearing shaft 21, and when the high-pressure hydraulic oil in the third chamber 61 flows into the first channel 211 through the first communicating pipe 7 and the third communicating pipe 91, the column 221 extends out of the first channel 211.

[0053] The second communicating pipe 8 communicates the third chamber 61 and the second hole 214 on one of the pressure bearing shafts 21, and the fourth communicating pipe 92 communicates the third chamber 61 and the second hole 214 on the other pressure bearing shaft 21, and when the high-pressure hydraulic oil in the third chamber 61 flows into the second channel 213 through the second communicating pipe 8 and the fourth communicating pipe 92, the column 221 is retracted into the first channel 211.

[0054] In some embodiments, as shown, Figure 2 As shown, the ore bin bottom powder bin pressure relief feeding device further comprises four communicating vessels 95, and the four communicating vessels 95 are divided into two groups, each group comprises two communicating vessels 95, the two groups of communicating vessels 95 are arranged along the second direction, and the two groups of communicating vessels 95 are arranged one-to-one corresponding to the two pressure bearing shafts 21. One of the communicating vessels 95 in one group of communicating vessels 95 is connected to the first communicating pipe 7 and the first hole 212 of one of the pressure bearing shafts 21, and the other communicating vessel 95 in one group of communicating vessels 95 is connected to the second communicating pipe 8 and the second hole 214 of one of the pressure bearing shafts 21.

[0055] One of the communicating vessels 95 in the other group of communicating vessels 95 is connected to the third communicating pipe 91 and the first hole 212 of the other pressure bearing shaft 21, and the other communicating vessel 95 in the other group of communicating vessels 95 is connected to the fourth communicating pipe 92 and the second hole 214 of the other pressure bearing shaft 21. The communicating vessel 95 has a first part (not shown) and a second part (not shown), the first part and the second part are in communication, the second part can rotate relative to the first part around the first direction, and the first part and the second part adopt a piston groove sealing. The first part is connected to the communicating pipe, the second part is connected to the end of the pressure bearing shaft 21, and the second part can rotate with the pressure bearing shaft 21.

[0056] In some embodiments, the hydraulic oil in the third chamber 61 includes high-pressure oil and low-pressure oil (unpressurized oil). When the column 221 is directly above the pressure-bearing shaft 21, the high-pressure oil in the third chamber 61 fills the first channel 211, and the end of the column 221 away from the connector 222 extends out of the first channel 211 to its limit position, while the low-pressure oil in the second channel 213 flows back into the third chamber 61. The drive assembly 3 drives the pressure-bearing shaft 21 and the column 221 to rotate clockwise, and the column 221 pushes the material to feed the conveying device 5.

[0057] like Figures 4-7 As shown, when the column 221 rotates to the right horizontal position, the control valve (not shown) in the third chamber 61 begins to switch, the high-pressure oil in the third chamber 61 gradually flows into the second channel 213, the low-pressure oil in the first channel 211 gradually flows back into the third chamber 61, and the column 221 gradually retracts into the first channel 211.

[0058] When the column 221 rotates to the position directly below, the column 221 has returned to the limit position in the first channel 211, the high-pressure oil in the third chamber 61 has filled the second channel 213, and the low-pressure oil in the first channel 211 has flowed back to the third chamber 61.

[0059] When column 221 rotates to the left horizontal position, the control valve in the third chamber 61 begins to switch directions. The high-pressure oil in the third chamber 61 gradually flows into the first channel 211, and the low-pressure oil in the second channel 213 gradually flows back into the third chamber 61. The end of column 221 away from connector 222 gradually extends out of the first channel 211. When column 221 rotates to the top, it has extended out of the first channel 211 to its limit position, completing one cycle of material agitation.

[0060] Therefore, under the action of the hydraulic component 6, the column 221 reciprocates within the first channel 211, retracting and extending. When the end of the column 221 furthest from the connecting body 222 is above the bearing shaft 21, the column 221 extends out of the first channel 211, at which point it moves the material and feeds the conveying equipment 5. When the column 221 is below the bearing shaft 21, it retracts into the first channel 211, no longer contacting the material, thus reducing wear. This not only ensures stable feeding of the conveying equipment 5, prevents material blockage, reduces accidents, and improves system safety, but also significantly reduces wear on the column 221, extends its service life, improves system reliability, reduces the energy consumption of the drive component 3, and is low-carbon and environmentally friendly.

[0061] In some embodiments, the feeding member 22 is multiple, the multiple feeding members 22 are arranged at intervals along the extension direction of the pressure-bearing shaft 21, the first channel 211 is multiple and corresponds to the multiple feeding members 22 one by one, the multiple first channels 211 are communicated with the third hole 216, the second channel 213 is multiple and corresponds to the multiple feeding members 22 one by one, and the multiple second channels 213 are communicated with the fourth hole 217.

[0062] In some embodiments, as shown in Figure 1 and Figure 2 , the ore bin bottom powder ore bin pressure relief feeding device further comprises a support frame 93 for supporting the box body 1 and the driving assembly 3. Specifically, the box body 1 is arranged on the support frame 93, the driving assembly 3 is also arranged on the support frame 93, the support frame 93 supports the box body 1 and the driving assembly 3 at the top, and the support frame 93 is supported on the concrete foundation at the foot.

[0063] In some embodiments, as shown in Figure 1 and Figure 2 , the ore bin bottom powder ore bin pressure relief feeding device further comprises a mounting seat 94, the mounting seat 94 is at least two, the at least two mounting seats 94 are oppositely arranged, one end of the pressure-bearing shaft 21 is mounted on one mounting seat 94, the other end of the pressure-bearing shaft 21 is mounted on the mounting seat 94 oppositely arranged with one mounting seat 94, and the shaft end driven by the pressure-bearing shaft 21 is connected with the driving assembly 3.

[0064] Specifically, as shown in Figure 2 , the mounting seat 94 is four, the four mounting seats 94 are divided into two groups, each group includes two mounting seats 94, and the two mounting seats 94 in each group are oppositely arranged. The two groups of mounting seats 94 are arranged at intervals in the second direction, and the two pressure-bearing shafts 21 are arranged one by one with the two groups of mounting seats 94, one of the pressure-bearing shafts 21 is mounted on one of the groups of mounting seats 94, and one end of one of the pressure-bearing shafts 21 is assembled with one of the groups of mounting seats 94. The other end of one of the pressure-bearing shafts 21 is assembled with the other one of the groups of mounting seats 94. The other pressure-bearing shaft 21 is mounted on the other group of mounting seats 94, and one end of the other pressure-bearing shaft 21 is assembled with one of the other group of mounting seats 94. The other end of the other pressure-bearing shaft 21 is assembled with the other one of the other group of mounting seats 94.

[0065] In the description of the present application, it is to be understood that the orientations or positional relationships indicated by the terms "center", "longitudinal", "lateral", "length", "width", "thickness", "upper", "lower", "front", "back", "left", "right", "vertical", "horizontal", "top", "bottom", "inner", "outer", "clockwise", "counterclockwise", "axial", "radial", "circumferential" and the like are based on the orientations or positional relationships shown in the drawings, and are only for the purpose of facilitating the description of the present application and simplifying the description, and do not indicate or imply that the devices or elements indicated thereby must have a particular orientation, be constructed and operated in a particular orientation, and therefore cannot be understood as limiting the present application.

[0066] In addition, the terms "first", "second", "third", etc. are only used for descriptive purposes and cannot be understood as indicating or implying relative importance or implicitly indicating the number of technical features indicated thereby. Therefore, the features defined with "first", "second", etc. can explicitly or implicitly include at least one of the features. In the description of the present application, the meaning of "a plurality of" is at least two, such as two, three, etc., unless otherwise explicitly specified and limited.

[0067] In the present application, unless otherwise explicitly specified and limited, the terms "mounting", "connecting", "connecting", "fixing" and the like should be understood broadly, for example, it can be fixedly connected, or it can be detachably connected, or it can be integrated; it can be mechanically connected, or it can be electrically connected or in communication with each other; it can be directly connected, or it can be indirectly connected through an intermediate medium; it can be the internal communication or interaction relationship of two elements, unless otherwise explicitly limited. For those skilled in the art, the specific meaning of the above terms in the present application can be understood according to the specific circumstances.

[0068] In the present application, unless otherwise explicitly specified and limited, the first feature "on" or "under" the second feature can be that the first and second features are in direct contact, or the first and second features are in indirect contact through an intermediate medium. Moreover, the first feature "above", "over" and "on" the second feature can be that the first feature is directly above or obliquely above the second feature, or it can only mean that the horizontal height of the first feature is higher than that of the second feature. The first feature "below", "under" and "under" the second feature can be that the first feature is directly below or obliquely below the second feature, or it can only mean that the horizontal height of the first feature is less than that of the second feature.

[0069] In this disclosure, the terms "one embodiment", "some embodiments", "an example", "a specific example", or "some examples" mean that a particular feature, structure, material, or characteristic is included in at least one embodiment or example of the present disclosure. The illustrative appearances of the above-mentioned terms in various places in the specification are not necessarily referred to the same embodiment or example. Moreover, the particular features, structures, materials, or characteristics can be combined in any suitable manner in one or more embodiments or examples. Furthermore, the terminology "comprising" is used in the disclosure as comprising, but not limited to, any indicated features, integers, steps or components. It is also to be understood that the terminology "comprising" can be replaced by the terminology "consisting of" or "consisting essentially of" in some embodiments or examples.

[0070] Although the above-mentioned embodiments have been shown and described, it is to be understood that the above-mentioned embodiments are exemplary, and should not be understood as limiting the present disclosure, and the changes, modifications, replacements and variations of the above-mentioned embodiments made by those skilled in the art are within the protection scope of the present disclosure.

Claims

1. A pressure-relieved ore feeding device for a bottom ore bin of a skip shaft, characterized by It comprises: a box (1) and a fine ore bin (4) with material in the bin (4), the box (1) has a first chamber (11) and communicates with the fine ore bin (4) so that the material in the fine ore bin (4) can enter the first chamber (11); an agitation assembly (2) arranged in the first chamber (11), the agitation assembly (2) comprises pressure-bearing shafts (21) and feeding members (22), the feeding members (22) are arranged on the pressure-bearing shafts (21), the pressure-bearing shafts (21) extend along a first direction and can rotate around the first direction to drive the feeding members (22) to rotate around the first direction, thereby agitating the material in the first chamber (11) to facilitate the discharge of the material in the first chamber (11); a driving assembly (3) connected with the pressure-bearing shafts (21), the driving assembly (3) is used to drive the pressure-bearing shafts (21) to rotate around the first direction; the pressure-bearing shafts (21) are two, both of the pressure-bearing shafts (21) are arranged in the first chamber (11), and both of the pressure-bearing shafts (21) are oppositely and spacedly arranged in a second direction, the feeding members (22) on both of the pressure-bearing shafts (21) are staggered, and the rotation directions of both of the pressure-bearing shafts (21) are opposite; the pressure-bearing shaft (21) comprises a first channel (211) extending from the outer circumferential surface of the pressure-bearing shaft (21) towards the center of the pressure-bearing shaft (21), the feeding member (22) is arranged in the first channel (211), and the feeding member (22) can move in the first channel (211) so that one end of the feeding member (22) can extend out of the first channel (211); the pressure-bearing shaft (21) comprises a first hole (212) at one end of the pressure-bearing shaft (21), the first hole (212) communicates with the first channel (211), the first hole (212) is used to pass hydraulic oil, the hydraulic oil can flow into the first channel (211), when the hydraulic oil flows into the first channel (211), one end of the feeding member (22) can extend out of the first channel (211), and when the hydraulic oil flows out of the first channel (211), one end of the feeding member (22) can be withdrawn into the first channel (211).

2. The fine ore bin pressure reduction and feeding device according to claim 1, characterized in that The pressure-bearing shaft (21) comprises a second channel (213), a second hole (214) and a third channel (215), the second channel (213) extends along the extension direction of the first channel (211), the third channel (215) extends along the extension direction of the first channel (211), the third channel (215) communicates the first channel (211) and the second channel (213), the second hole (214) is located at the other end of the pressure-bearing shaft (21), and the second hole (214) and the second channel (213) communicate, and the second hole (214) is used for passing hydraulic oil; The feeding member (22) comprises a column body (221), a connecting body (222) and a plug body (223), the connecting body (222) connects the column body (221) and the plug body (223), the column body (221) is located in the first channel (211), and one end of the column body (221) can extend out of the first channel (211) away from one end of the third channel (215), the plug body (223) is located in the second channel (213), the plug body (223) can move in the second channel (213), the connecting body (222) is located in the third channel (215), and the connecting body (222) can move in the third channel (215), the first channel (211) has hydraulic oil, when the second channel (213) has no hydraulic oil, one end of the column body (221) extends out of the first channel (211) away from one end of the third channel (215), and the hydraulic oil flows out of the first channel (211), and when the second channel (213) has hydraulic oil, one end of the feeding member (22) is withdrawn into the first channel (211).

3. The reduced pressure ore pass arrangement according to claim 2, characterized in that The cross-sectional area of the third channel (215) is smaller than the flow area of the first channel (211) and the flow area of the second channel (213).

4. The reduced pressure ore pass arrangement according to claim 2, characterized in that The pressure-bearing shaft (21) further comprises a third hole (216) and a fourth hole (217), the third hole (216) extends along the extension direction of the pressure-bearing shaft (21) and communicates the first hole (212) and the first channel (211), and the fourth hole (217) extends along the extension direction of the pressure-bearing shaft (21) and communicates the second hole (214) and the second channel (213).

5. The reduced pressure ore pass arrangement according to claim 2, wherein, Further comprising: A hydraulic assembly (6) having a third chamber (61), a first port (62) and a second port (63), the first port (62) and the second port (63) communicate with the third chamber (61), and the third chamber (61) has hydraulic oil; A first communication pipe (7) and a second communication pipe (8), the first communication pipe (7) communicates the third chamber (61) and the first hole (212), and the second communication pipe (8) communicates the third chamber (61) and the second hole (214).

6. The reduced pressure ore pass arrangement according to claim 4, characterized in that The feeding pieces (22) are multiple, multiple feeding pieces (22) are arranged along the extension direction of the pressure bearing shaft (21), the first channel (211) is multiple and corresponds to multiple feeding pieces (22), multiple first channels (211) are communicated with the third hole (216), the second channel (213) is multiple and corresponds to multiple feeding pieces (22), multiple second channels (213) are communicated with the fourth hole (217).

7. The reduced pressure ore pass arrangement according to claim 1, characterized in that, Further comprising a support frame (93) for supporting the box (1) and the driving assembly (3).

8. The chuted shaft bottom fines bin pressure relief feeder of any one of claims 1-7, wherein, Further comprising a mounting seat (94), the mounting seat (94) is at least two, at least two mounting seats (94) are oppositely arranged, one end of the pressure bearing shaft (21) is mounted on one mounting seat (94), the other end of the pressure bearing shaft (21) is mounted on the mounting seat (94) oppositely arranged with one mounting seat (94), the shaft end driven by the pressure bearing shaft (21) is connected with the driving assembly (3).

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