CN217129589U - Combined ore-extracting system of buoyancy and elevator of ultra-deep shaft - Google Patents

Abstract

The utility model provides an ultra-deep shaft buoyancy and lifting machine jointly carry ore deposit system, includes blind shaft, main shaft, auxiliary shaft, shaft bottom transportation gallery, ore transportation gallery and ore transportation driving area, and blind shaft is as buoyancy transportation passageway, and main shaft is as mechanical transportation passageway, is equipped with the pressure balance room between blind shaft and the shaft bottom transportation gallery, and ore transportation gallery passes through the drop shaft intercommunication with ore transportation driving area, and the ore transportation gallery communicates with auxiliary shaft, and the ore transportation driving area communicates with main shaft and auxiliary shaft. The ore extraction method comprises the following steps: the ore bin and the buoyancy bin are moved into a pressure balance chamber, the pressure balance chamber is pressurized to the bottom pressure of a blind shaft after being sealed and filled with water, the ore bin and the buoyancy bin are moved into the blind shaft, the ore bin is driven by buoyancy to float up to the wellhead of the blind shaft, ore is dropped through a chute, the empty ore bin and the buoyancy bin are returned to a bottom transportation gallery through an auxiliary shaft for standby, the chute is dropped to a mine car, the mine car is transferred to the ground through a main shaft for unloading, and the empty mine car is returned to an ore transportation yard through the auxiliary shaft for standby.

Description

Combined ore-extracting system of buoyancy and elevator of ultra-deep shaft

Technical Field

The utility model belongs to the technical field of underground mining, especially, relate to an ultra-deep shaft buoyancy and lifting machine jointly carry ore deposit system.

Background

With the exhaustion of shallow resources, the future exploitation of deep wells on the order of thousands of meters is almost the only way to obtain mineral resources. In the process of mining and producing the underground deep well, the mined ores need to be transported to the ground from the underground deep well, at present, a steel wire rope friction wheel ore extraction system is mainly adopted, and the steel wire rope is used as an important part of the ore extraction system, so that the safety and the economical efficiency of the operation of the ore extraction system are concerned.

However, in the deep well of over kilometer, the wire rope of the traditional ore lifting system can also lead to the dead weight to be bigger and bigger because of the increase of the well depth, because of the huge dead weight of the wire rope, the output power of the traditional ore lifting system is greatly consumed on the lifting of the wire rope, and the effective power capable of being distributed to the ore lifting is greatly reduced, so that the single ore carrying capacity is lower, thereby reducing the whole carrying efficiency of the ore and leading to the fact that the ore lifting cost is high.

In addition, when the steel wire rope of the traditional ore lifting system is adapted to the depth of a well with the depth of more than kilometers, the problems of unbalanced stress, friction and creep, local fatigue and the like of the steel wire rope are more and more obvious due to the characteristics of large length and high self weight of the steel wire rope, and the service life of the steel wire rope is further shortened.

SUMMERY OF THE UTILITY MODEL

The problem to prior art exists, the utility model provides an extra-deep shaft buoyancy jointly carries ore deposit system with lifting machine forms buoyancy transport passageway through the combination of extra-deep shaft and underground mining operation water, and the promotion process of ore relies on buoyancy to realize completely, need not the energy consumption, and single ore carrying capacity is big moreover, only at promoting terminal configuration lifting machine to transport the ore to ground by the lifting machine, increased substantially the whole carrying efficiency of ore, further reduced and carried the ore cost.

In order to achieve the above purpose, the utility model adopts the following technical scheme: a buoyancy and elevator combined ore-lifting system for an ultra-deep shaft comprises an ore bin, a buoyancy bin, a blind shaft, a grab bucket type crane, a chute, a vibrating ore-drawing machine, a mine car, a main shaft, an auxiliary shaft, a main shaft elevator, an auxiliary shaft elevator, a main shaft cage, an auxiliary shaft cage, a shaft bottom transportation roadway, an ore transportation roadway and an ore transportation yard; the ore bin and the buoyancy bin are stored in a shaft bottom transportation roadway; the bottom end of the blind vertical shaft and the bottom transportation gallery are located at the same elevation position, and the mouth end of the blind vertical shaft and the ore transportation gallery are located at the same elevation position; the blind shaft is used as a buoyancy transportation channel, and water for underground mining operation is filled in the blind shaft; the grab bucket type crane is arranged in the ore transfer roadway and is positioned above the wellhead of the blind vertical shaft; the upper wellhead of the chute is communicated with the ore transfer gallery, and the lower wellhead of the chute is communicated with the ore transfer yard; the vibrating ore drawing machine is arranged in the ore transfer yard and is positioned below the lower wellhead of the chute; the mine car is stored in an ore transfer yard; the ore transfer gallery is communicated with the auxiliary vertical shaft; the ore transfer yard is communicated with the main vertical shaft and the auxiliary vertical shaft; the main shaft elevator is arranged on the ground and positioned above an upper shaft opening of the main shaft, and a lower shaft opening of the main shaft is communicated with a shaft bottom transportation roadway; the main shaft cage is positioned in the main shaft and is connected to a steel wire rope of a main shaft hoist in a hoisting manner; the auxiliary shaft elevator is arranged on the ground and positioned above an upper shaft opening of the auxiliary shaft, and a lower shaft opening of the auxiliary shaft is communicated with a shaft bottom transportation roadway; and the auxiliary shaft cage is positioned in the auxiliary shaft and is connected to a steel wire rope of the auxiliary shaft hoist in a hoisting manner.

And an inner liner layer with high pressure resistance and water seepage resistance is constructed on the inner wall of the shaft of the blind shaft.

A pressure balance chamber is arranged in the shaft bottom transportation gallery, a first gate is arranged between the pressure balance chamber and the shaft bottom transportation gallery, and a second gate is arranged between the pressure balance chamber and the blind shaft; the pressure balance chamber is used as a rock bin and a buoyancy bin to enter a transfer chamber of the blind vertical shaft.

A pressurizing equipment chamber is arranged in the shaft bottom transportation roadway, and a water pump, a water storage bin, a water pumping pipe, a water discharging pipe, a water returning pipe, an air compressor and an air pipe are arranged in the pressurizing equipment chamber; the water inlet of the water pump is communicated with the water storage bin through a water pumping pipe, the water outlet of the water pump is communicated with the pressure balance chamber through a water drainage pipe, and the pressure balance chamber is communicated with the water storage bin through a water return pipe; the air compressor is communicated with the pressure balance chamber through an air pipe.

A water supply valve, a check valve and an antifouling isolating valve are sequentially arranged on the water discharge pipe between the water outlet of the water pump and the pressure balancing chamber; a buffer tank, a filter and an air valve are sequentially arranged on an air pipe between the air compressor and the pressure balance chamber; a water return valve is arranged on a water return pipe between the pressure balance chamber and the water storage bin.

A first pressure sensor is arranged in the blind shaft; a second pressure sensor is arranged in the pressure balance chamber; a pressure balance pipe is arranged between the pressure balance chamber and the blind vertical shaft, a pressure reducing valve is arranged on the pressure balance pipe, a water inlet of the pressure reducing valve is communicated with the blind vertical shaft, and a water outlet of the pressure reducing valve is communicated with the pressure balance chamber.

An emergency pressure relief water storage chamber is further arranged in the shaft bottom transportation roadway, and a third gate is arranged between the emergency pressure relief water storage chamber and the blind shaft.

The bottom of the ore bin is provided with a rail wheel, and the top of the ore bin is provided with a hanging ring; the bottom of the buoyancy bin is provided with a hook, the buoyancy bin is in hanging connection with a hanging ring at the top of the ore bin through the bottom hook, a guide wheel is arranged at the top of the buoyancy bin, a guide rail is arranged at the top of the pressure balance chamber, and the buoyancy bin is in moving connection with the guide rail at the top of the pressure balance chamber through the guide wheel.

The number of the buoyancy bins hung with the ore bins is at least one; when the quantity in buoyancy storehouse was a plurality of, a plurality of buoyancy storehouse adopted the series connection to articulate the mode, articulates the ore carrying capacity in quantity and ore storehouse and carries out the adaptation through the series connection in adjustment buoyancy storehouse.

The buoyancy and elevator combined ore-extracting method for the ultra-deep vertical shaft adopts the buoyancy and elevator combined ore-extracting system for the ultra-deep vertical shaft, and comprises the following steps:

the method comprises the following steps: opening a first gate, firstly moving the ore bin loaded with the ore into a pressure balance chamber through a rail wheel, then moving the buoyancy bin into the pressure balance chamber through a guide wheel to enable the buoyancy bin to be positioned right above the ore bin, and then hanging the buoyancy bin and the ore bin together;

step two: closing the first gate, sealing the pressure balance chamber, then opening the water supply valve and the air valve, then starting the water pump and the air compressor, pumping air in the pressure balance chamber outwards by the air compressor, simultaneously pumping water in the water storage bin into the pressure balance chamber by the water pump until the pressure balance chamber is full of water, closing the water supply valve and the air valve at the moment, and simultaneously closing the water pump and the air compressor;

step three: opening a pressure reducing valve to enable the pressure balance chamber to be communicated with the blind vertical shaft, gradually increasing the water pressure of the pressure balance chamber, indicating that the pressure balance between the pressure balance chamber and the blind vertical shaft is achieved when the bottom hole pressure of the blind vertical shaft monitored by the first pressure sensor is equal to the pressure in the pressure balance chamber monitored by the second pressure sensor, and closing the pressure reducing valve;

step four: opening a second gate, then moving the suspended buoyancy bin and the ore bin out of the pressure balance chamber together and entering the blind vertical shaft, and then driving the ore bin to realize lifting by the buoyancy output by the buoyancy bin until the ore bin is lifted to the well head end of the blind vertical shaft;

step five: when the buoyancy bin and the ore bin which are hung together move out of the pressure balance chamber together, the second gate is closed, the pressure balance chamber is re-closed, then the water return valve and the air valve are opened, the air compressor is started simultaneously, external air is pumped into the pressure balance chamber by the air compressor, water in the pressure balance chamber returns to the water storage bin through the water return pipe until all water in the pressure balance chamber is completely discharged, the water return valve and the air valve are closed at the moment, the air compressor is closed simultaneously, and finally the first gate is opened to prepare for the next ore bin to enter the pressure balance chamber;

step six: when the ore bin is lifted to the well mouth end of the blind shaft, the grab bucket crane is started, the buoyancy bin and the ore bin are transferred into the ore transfer gallery through the grab bucket crane, when the buoyancy bin and the ore bin move to the upper well mouth of the drop shaft, the ore bin is left on the upper well mouth of the drop shaft for ore falling, the buoyancy bin is firstly released from being connected with the ore bin, then the buoyancy bin and the ore bin are moved into an auxiliary shaft cage, and finally the auxiliary shaft cage is driven by the auxiliary shaft elevator to return to the shaft bottom transport gallery for standby along the auxiliary shaft;

step seven: when ore falling of the ore bin into the chute is completed, the empty ore bin also needs to be moved into an auxiliary shaft cage, and then the auxiliary shaft cage is driven by an auxiliary shaft hoist to return to a shaft bottom transportation roadway for later use along the auxiliary shaft;

step eight: the ore that falls into the swift current well can first get into vibrating ore drawing machine, in the even ore drawing of ore drawing machine to the mine car in the ore transfer car yard again by vibrating ore drawing machine, later with the mine car that loads the ore remove to the main shaft cage in, then move to ground along main shaft cage by main shaft hoist drive main shaft cage to unload the ore of mine car on ground, later with empty mine car remove to in the auxiliary shaft cage, return the ore transfer car yard by auxiliary shaft hoist drive auxiliary shaft cage along auxiliary shaft at last and reserve.

The utility model has the advantages that:

the utility model discloses an ore deposit system is jointly carried to super dark shaft buoyancy and lifting machine forms buoyancy transport channel through the combination of super dark shaft with the mining operation water in the pit, and the promotion process of ore relies on buoyancy to realize completely, need not the energy consumption, and single ore carrying capacity is big moreover, only at promoting terminal configuration lifting machine to transport the ore to ground by the lifting machine, increased substantially the whole carrying efficiency of ore, further reduced and carried the ore deposit cost.

Drawings

Fig. 1 is a schematic structural diagram of a combined buoyancy and elevator ore-extracting system for an ultra-deep shaft of the present invention;

in the figure, 1-ore bin, 2-buoyancy bin, 3-blind shaft, 4-grab bucket crane, 5-draw shaft, 6-vibration ore drawing machine, 7-mine car, 8-main shaft, 9-auxiliary shaft, 10-main shaft elevator, 11-auxiliary shaft elevator, 12-main shaft cage, 13-auxiliary shaft cage, 14-shaft bottom transportation gallery, 15-ore transfer gallery, 16-ore transfer yard, 17-pressure balance chamber, 18-first gate, 19-second gate, 20-water pump, 21-water storage bin, 22-water pumping pipe, 23-water discharging pipe, 24-water returning pipe, 25-air compressor, 26-air pipe, 27-water feeding valve, 28-check valve, 29-isolating antifouling valve, 30-buffer tank, 31-filter, 32-air valve, 33-water returning valve, 34-first pressure sensor, 35-second pressure sensor, 36-pressure balance pipe, 37-pressure reducing valve, 38-emergency pressure relief water storage chamber, 39-third gate.

Detailed Description

The present invention will be described in further detail with reference to the accompanying drawings and specific embodiments.

As shown in fig. 1, the ultra-deep shaft buoyancy and elevator combined ore-lifting system comprises an ore bin 1, a buoyancy bin 2, a blind shaft 3, a grab bucket crane 4, a chute 5, a vibrating ore-drawing machine 6, a mine car 7, a main shaft 8, an auxiliary shaft 9, a main shaft elevator 10, an auxiliary shaft elevator 11, a main shaft cage 12, an auxiliary shaft cage 13, a shaft bottom transport roadway 14, an ore transfer roadway 15 and an ore transfer yard 16; the ore bin 1 and the buoyancy bin 2 are stored in a shaft bottom transportation roadway 14; the bottom end of the blind vertical shaft 3 and the bottom transportation drift 14 are located at the same elevation position, and the wellhead end of the blind vertical shaft 3 and the ore transfer drift 15 are located at the same elevation position; the blind vertical shaft 3 is used as a buoyancy transportation channel, and the blind vertical shaft 3 is filled with water for underground mining operation; the grab bucket type crane 4 is arranged in the ore transfer drift 15 and is positioned above a well mouth of the blind vertical shaft 3; the upper wellhead of the ore pass 5 is communicated with an ore transfer gallery 15, and the lower wellhead of the ore pass 5 is communicated with an ore transfer yard 16; the vibrating ore drawing machine 6 is arranged in the ore transfer yard 16 and is positioned below the lower wellhead of the ore pass 5; the mine car 7 is stored in an ore transfer yard 16; the ore transfer gallery 15 is communicated with the auxiliary vertical shaft 9; the ore transfer yard 16 is communicated with the main shaft 8 and the auxiliary shaft 9; the main shaft hoist 10 is arranged on the ground and positioned above an upper wellhead of the main shaft 8, and a lower wellhead of the main shaft 8 is communicated with a shaft bottom transportation drift 14; the main shaft cage 12 is positioned in the main shaft 8, and the main shaft cage 12 is connected to a steel wire rope of the main shaft elevator 10 in a hoisting manner; the auxiliary shaft hoist 11 is arranged on the ground and positioned above the upper wellhead of the auxiliary shaft 9, and the lower wellhead of the auxiliary shaft 9 is communicated with a shaft bottom transportation drift 14; and the auxiliary shaft cage 13 is positioned in the auxiliary shaft 9, and the auxiliary shaft cage 13 is connected to a steel wire rope of the auxiliary shaft hoisting machine 11 in a hoisting manner.

And an inner lining layer with high pressure resistance and water seepage resistance is constructed on the inner wall of the shaft of the blind shaft 3.

A pressure balance chamber 17 is arranged in the shaft bottom transportation gallery 14, a first gate 18 is arranged between the pressure balance chamber 17 and the shaft bottom transportation gallery 14, and a second gate 19 is arranged between the pressure balance chamber 17 and the blind shaft 3; the pressure balance chamber 17 is used as a transfer chamber for the ore bin 1 and the buoyancy bin 2 to enter the blind shaft 3.

A pressurizing equipment chamber is arranged in the shaft bottom transportation roadway 14, and a water pump 20, a water storage bin 21, a water pumping pipe 22, a water discharging pipe 23, a water returning pipe 24, an air compressor 25 and an air pipe 26 are arranged in the pressurizing equipment chamber; a water inlet of the water pump 20 is communicated with the water storage bin 21 through a water pumping pipe 22, a water outlet of the water pump 20 is communicated with the pressure balance chamber 17 through a water discharging pipe 23, and the pressure balance chamber 17 is communicated with the water storage bin 21 through a water returning pipe 24; the air compressor 25 communicates with the pressure equalization chamber 17 via an air line 26.

A water supply valve 27, a check valve 28 and an antifouling block valve 29 are sequentially arranged on the water discharge pipe 23 between the water outlet of the water pump 20 and the pressure balance chamber 17; a buffer tank 30, a filter 31 and an air valve 32 are sequentially arranged on the air pipe 26 between the air compressor 25 and the pressure balance chamber 17; a water return valve 33 is provided on the water return pipe 24 between the pressure balance chamber 17 and the water storage tank 21.

A first pressure sensor 34 is arranged in the blind shaft 3; a second pressure sensor 35 is provided in the pressure balance chamber 17; a pressure balance pipe 36 is arranged between the pressure balance chamber 17 and the blind vertical shaft 3, a pressure reducing valve 37 is arranged on the pressure balance pipe 36, a water inlet of the pressure reducing valve 37 is communicated with the blind vertical shaft 3, and a water outlet of the pressure reducing valve 37 is communicated with the pressure balance chamber 17.

An emergency pressure relief water storage chamber 38 is further arranged in the shaft bottom transportation roadway 14, and a third gate 39 is arranged between the emergency pressure relief water storage chamber 38 and the blind shaft 3. When a water penetration accident occurs or equipment fails in the blind shaft 3, the third gate 39 can be opened to discharge water in the blind shaft 3 into the emergency pressure relief water storage chamber 38.

The bottom of the ore bin 1 is provided with a rail wheel, and the top of the ore bin 1 is provided with a hanging ring; 2 bottoms in buoyancy storehouse are provided with the couple, and buoyancy storehouse 2 articulates the cooperation through bottom couple and 1 top rings in ore deposit storehouse, is provided with the guide wheel at 2 tops in buoyancy storehouse, is provided with the guide rail at pressure balance room 17 tops, and buoyancy storehouse 2 removes the cooperation through guide wheel and pressure balance room 17 top guide rail.

The number of the buoyancy bins 2 articulated with the ore bins 1 is at least one; when the quantity of buoyancy storehouse 2 is a plurality of, a plurality of buoyancy storehouse 2 adopt to establish ties to articulate the mode, articulate the quantity and carry out the adaptation with the ore carrying capacity in ore storehouse 1 through the series connection of adjustment buoyancy storehouse 2.

The buoyancy and elevator combined ore-extracting method for the ultra-deep vertical shaft adopts the buoyancy and elevator combined ore-extracting system for the ultra-deep vertical shaft, and comprises the following steps:

the method comprises the following steps: opening a first gate 18, firstly moving the ore bin 1 loaded with ores into a pressure balance chamber 17 through a rail wheel, then moving the buoyancy bin 2 into the pressure balance chamber 17 through a guide wheel, enabling the buoyancy bin 2 to be positioned right above the ore bin 1, and then hanging the buoyancy bin 2 and the ore bin 1 together;

step two: closing the first gate 18, sealing the pressure balance chamber 17, then opening the water supply valve 27 and the air valve 32, then starting the water pump 20 and the air compressor 25, pumping the air in the pressure balance chamber 17 outwards by the air compressor 25, simultaneously pumping the water in the water storage bin 21 into the pressure balance chamber 17 by the water pump 20 until the pressure balance chamber 17 is full of water, closing the water supply valve 27 and the air valve 32 at the same time, and closing the water pump 20 and the air compressor 25;

step three: opening a pressure reducing valve 37 to enable the pressure balance chamber 17 to be communicated with the blind vertical shaft 3, gradually increasing the water pressure of the pressure balance chamber 17, indicating that the pressure balance between the pressure balance chamber 17 and the blind vertical shaft 3 is achieved when the bottom hole pressure of the blind vertical shaft 3 monitored by the first pressure sensor 34 is equal to the pressure in the pressure balance chamber 17 monitored by the second pressure sensor 35, and closing the pressure reducing valve 37;

step four: the second gate 19 is opened, then the suspended buoyancy bin 2 and the ore bin 1 are moved out of the pressure balance chamber 17 together and enter the blind vertical shaft 3, and then the ore bin 1 is driven by the buoyancy output by the buoyancy bin 2 to realize lifting until the ore bin 1 is lifted to the wellhead end of the blind vertical shaft 3;

step five: when the buoyancy bin 2 and the ore bin 1 which are hung together move out of the pressure balance chamber 17 together, the second gate 19 is closed, the pressure balance chamber 17 is closed again, then the water return valve 33 and the air valve 32 are opened, the air compressor 25 is started simultaneously, external air is pumped into the pressure balance chamber 17 by the air compressor 25, water in the pressure balance chamber 17 returns to the water storage bin 21 through the water return pipe 24 until all water in the pressure balance chamber 17 is drained, the water return valve 33 and the air valve 32 are closed at the moment, the air compressor 25 is closed simultaneously, and finally the first gate 18 is opened to prepare for the next ore bin 1 to enter the pressure balance chamber 17;

step six: after the ore bin 1 is lifted to the wellhead end of the blind shaft 3, the grab bucket crane 4 is started, the buoyancy bin 2 and the ore bin 1 are transferred into the ore transfer gallery 15 through the grab bucket crane 4, when the buoyancy bin 2 and the ore bin 1 move to the upper wellhead of the drop shaft 5, the ore bin 1 is left on the wellhead of the drop shaft 5 for ore falling, the buoyancy bin 2 is firstly released from hooking with the ore bin 1 and then is moved into the auxiliary shaft cage 13, and finally the auxiliary shaft cage 13 is driven by the auxiliary shaft elevator 11 to return to the shaft bottom transport gallery 14 along the auxiliary shaft 9 for standby;

step seven: after ore bins 1 finish ore falling into the chute 5, the empty ore bins 1 also need to be moved into an auxiliary shaft cage 13, and then the auxiliary shaft cage 13 is driven by an auxiliary shaft elevator 11 to return to a shaft bottom transportation drift 14 for standby along an auxiliary shaft 9;

step eight: ore falling into the chute 5 will first enter the vibrating ore-drawing machine 6, be uniformly drawn by the vibrating ore-drawing machine 6 into the mine car 7 in the ore transfer yard 16, be moved into the main shaft cage 12, be driven by the main shaft hoist 10 to move along the main shaft 8 to the ground, and unload the ore of the mine car 7 on the ground, be moved into the auxiliary shaft cage 13 by the empty mine car 7, and be driven by the auxiliary shaft hoist 11 to return the auxiliary shaft cage 13 to the ore transfer yard 16 along the auxiliary shaft 9 for standby.

The embodiments are not intended to limit the scope of the present invention, and all equivalent implementations or modifications that do not depart from the scope of the present invention are intended to be included within the scope of the present invention.

Claims (9)

1. The utility model provides an ore deposit system is jointly carried to super deep shaft buoyancy and lifting machine which characterized in that: the device comprises a ore bin, a buoyancy bin, a blind shaft, a grab bucket crane, a drop shaft, a vibrating ore drawing machine, a mine car, a main shaft, an auxiliary shaft, a main shaft hoist, an auxiliary shaft hoist, a main shaft cage, an auxiliary shaft cage, a shaft bottom transportation gallery, an ore transportation gallery and an ore transportation yard; the ore bin and the buoyancy bin are stored in a shaft bottom transportation roadway; the bottom end of the blind vertical shaft and the bottom transportation gallery are located at the same elevation position, and the mouth end of the blind vertical shaft and the ore transportation gallery are located at the same elevation position; the blind shaft is used as a buoyancy transportation channel, and water for underground mining operation is filled in the blind shaft; the grab bucket type crane is arranged in the ore transfer roadway and is positioned above the wellhead of the blind vertical shaft; the upper wellhead of the chute is communicated with the ore transfer gallery, and the lower wellhead of the chute is communicated with the ore transfer yard; the vibrating ore drawing machine is arranged in the ore transfer yard and is positioned below the lower wellhead of the chute; the mine car is stored in an ore transfer yard; the ore transferring gallery is communicated with the auxiliary vertical shaft; the ore transfer yard is communicated with the main vertical shaft and the auxiliary vertical shaft; the main shaft elevator is arranged on the ground and positioned above an upper shaft opening of the main shaft, and a lower shaft opening of the main shaft is communicated with a shaft bottom transportation roadway; the main shaft cage is positioned in the main shaft and is hoisted and connected to a steel wire rope of a main shaft hoisting machine; the auxiliary shaft elevator is arranged on the ground and positioned above an upper shaft opening of the auxiliary shaft, and a lower shaft opening of the auxiliary shaft is communicated with a shaft bottom transportation roadway; and the auxiliary shaft cage is positioned in the auxiliary shaft and is connected to a steel wire rope of the auxiliary shaft hoist in a hoisting manner.

2. The ultra-deep shaft buoyancy and elevator combined ore extraction system according to claim 1, wherein: and an inner lining layer for resisting high pressure and water seepage is constructed on the inner wall of the shaft of the blind vertical shaft.

3. The ultra-deep shaft buoyancy and elevator combined ore extraction system according to claim 1, wherein: a pressure balance chamber is arranged in the shaft bottom transportation gallery, a first gate is arranged between the pressure balance chamber and the shaft bottom transportation gallery, and a second gate is arranged between the pressure balance chamber and the blind shaft; the pressure balance chamber is used as a rock bin and a buoyancy bin to enter a transfer chamber of the blind vertical shaft.

4. The ultra-deep shaft buoyancy and elevator combined ore extraction system of claim 3, wherein: a pressurizing equipment chamber is arranged in the shaft bottom transportation roadway, and a water pump, a water storage bin, a water pumping pipe, a water discharging pipe, a water returning pipe, an air compressor and an air pipe are arranged in the pressurizing equipment chamber; the water inlet of the water pump is communicated with the water storage bin through a water pumping pipe, the water outlet of the water pump is communicated with the pressure balance chamber through a water drainage pipe, and the pressure balance chamber is communicated with the water storage bin through a water return pipe; the air compressor is communicated with the pressure balance chamber through an air pipe.

5. The ultra-deep shaft buoyancy and elevator combined ore extraction system according to claim 4, wherein: a water supply valve, a check valve and an antifouling isolating valve are sequentially arranged on the water discharge pipe between the water outlet of the water pump and the pressure balancing chamber; a buffer tank, a filter and an air valve are sequentially arranged on an air pipe between the air compressor and the pressure balance chamber; a water return valve is arranged on a water return pipe between the pressure balance chamber and the water storage bin.

6. The ultra-deep shaft buoyancy and elevator combined ore extraction system of claim 3, wherein: a first pressure sensor is arranged in the blind shaft; a second pressure sensor is arranged in the pressure balance chamber; a pressure balance pipe is arranged between the pressure balance chamber and the blind vertical shaft, a pressure reducing valve is arranged on the pressure balance pipe, a water inlet of the pressure reducing valve is communicated with the blind vertical shaft, and a water outlet of the pressure reducing valve is communicated with the pressure balance chamber.

7. The ultra-deep shaft buoyancy and elevator combined ore extraction system according to claim 1, wherein: an emergency pressure relief water storage chamber is further arranged in the shaft bottom transportation roadway, and a third gate is arranged between the emergency pressure relief water storage chamber and the blind shaft.

8. The ultra-deep shaft buoyancy and elevator combined ore extraction system of claim 3, wherein: the bottom of the ore bin is provided with a rail wheel, and the top of the ore bin is provided with a hanging ring; the bottom of the buoyancy bin is provided with a hook, the buoyancy bin is in hanging connection with a hanging ring at the top of the ore bin through the bottom hook, a guide wheel is arranged at the top of the buoyancy bin, a guide rail is arranged at the top of the pressure balance chamber, and the buoyancy bin is in moving connection with the guide rail at the top of the pressure balance chamber through the guide wheel.

9. The ultra-deep shaft buoyancy and elevator combined ore extraction system according to claim 1, wherein: the number of the buoyancy bins articulated with the ore bins is at least one; when the quantity in buoyancy storehouse was a plurality of, a plurality of buoyancy storehouse adopted the series connection to articulate the mode, articulates the ore carrying capacity in quantity and ore storehouse and carries out the adaptation through the series connection in adjustment buoyancy storehouse.

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