CN110834873A - Large-scale multipoint-driving continuous lifting method and device for deep shaft and application - Google Patents

Large-scale multipoint-driving continuous lifting method and device for deep shaft and application Download PDF

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Publication number
CN110834873A
CN110834873A CN201911131543.6A CN201911131543A CN110834873A CN 110834873 A CN110834873 A CN 110834873A CN 201911131543 A CN201911131543 A CN 201911131543A CN 110834873 A CN110834873 A CN 110834873A
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CN
China
Prior art keywords
lifting
automatic unloading
lifting device
shaft
unloading device
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Pending
Application number
CN201911131543.6A
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Chinese (zh)
Inventor
周爱民
翟守忠
李富伟
李广
曹凤金
余洪伟
程言丽
郭鑫
左英杰
王西涛
陈淼
曹胜
周建
杨锦涛
付鹏飞
谭斯格
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Changsha Institute of Mining Research Co Ltd
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Changsha Institute of Mining Research Co Ltd
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Priority to CN201911131543.6A priority Critical patent/CN110834873A/en
Publication of CN110834873A publication Critical patent/CN110834873A/en
Pending legal-status Critical Current

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    • B—PERFORMING OPERATIONS; TRANSPORTING
    • B65—CONVEYING; PACKING; STORING; HANDLING THIN OR FILAMENTARY MATERIAL
    • B65G—TRANSPORT OR STORAGE DEVICES, e.g. CONVEYORS FOR LOADING OR TIPPING, SHOP CONVEYOR SYSTEMS OR PNEUMATIC TUBE CONVEYORS
    • B65G17/00—Conveyors having an endless traction element, e.g. a chain, transmitting movement to a continuous or substantially-continuous load-carrying surface or to a series of individual load-carriers; Endless-chain conveyors in which the chains form the load-carrying surface
    • B65G17/12—Conveyors having an endless traction element, e.g. a chain, transmitting movement to a continuous or substantially-continuous load-carrying surface or to a series of individual load-carriers; Endless-chain conveyors in which the chains form the load-carrying surface comprising a series of individual load-carriers fixed, or normally fixed, relative to traction element
    • B65G17/126—Bucket elevators
    • B—PERFORMING OPERATIONS; TRANSPORTING
    • B65—CONVEYING; PACKING; STORING; HANDLING THIN OR FILAMENTARY MATERIAL
    • B65G—TRANSPORT OR STORAGE DEVICES, e.g. CONVEYORS FOR LOADING OR TIPPING, SHOP CONVEYOR SYSTEMS OR PNEUMATIC TUBE CONVEYORS
    • B65G17/00—Conveyors having an endless traction element, e.g. a chain, transmitting movement to a continuous or substantially-continuous load-carrying surface or to a series of individual load-carriers; Endless-chain conveyors in which the chains form the load-carrying surface
    • B65G17/30—Details; Auxiliary devices
    • B—PERFORMING OPERATIONS; TRANSPORTING
    • B65—CONVEYING; PACKING; STORING; HANDLING THIN OR FILAMENTARY MATERIAL
    • B65G—TRANSPORT OR STORAGE DEVICES, e.g. CONVEYORS FOR LOADING OR TIPPING, SHOP CONVEYOR SYSTEMS OR PNEUMATIC TUBE CONVEYORS
    • B65G23/00—Driving gear for endless conveyors; Belt- or chain-tensioning arrangements
    • B65G23/02—Belt- or chain-engaging elements
    • B65G23/04—Drums, rollers, or wheels
    • B—PERFORMING OPERATIONS; TRANSPORTING
    • B65—CONVEYING; PACKING; STORING; HANDLING THIN OR FILAMENTARY MATERIAL
    • B65G—TRANSPORT OR STORAGE DEVICES, e.g. CONVEYORS FOR LOADING OR TIPPING, SHOP CONVEYOR SYSTEMS OR PNEUMATIC TUBE CONVEYORS
    • B65G23/00—Driving gear for endless conveyors; Belt- or chain-tensioning arrangements
    • B65G23/22—Arrangements or mountings of driving motors
    • B—PERFORMING OPERATIONS; TRANSPORTING
    • B65—CONVEYING; PACKING; STORING; HANDLING THIN OR FILAMENTARY MATERIAL
    • B65G—TRANSPORT OR STORAGE DEVICES, e.g. CONVEYORS FOR LOADING OR TIPPING, SHOP CONVEYOR SYSTEMS OR PNEUMATIC TUBE CONVEYORS
    • B65G23/00—Driving gear for endless conveyors; Belt- or chain-tensioning arrangements
    • B65G23/24—Gearing between driving motor and belt- or chain-engaging elements
    • B65G23/26—Applications of clutches or brakes
    • B—PERFORMING OPERATIONS; TRANSPORTING
    • B65—CONVEYING; PACKING; STORING; HANDLING THIN OR FILAMENTARY MATERIAL
    • B65G—TRANSPORT OR STORAGE DEVICES, e.g. CONVEYORS FOR LOADING OR TIPPING, SHOP CONVEYOR SYSTEMS OR PNEUMATIC TUBE CONVEYORS
    • B65G23/00—Driving gear for endless conveyors; Belt- or chain-tensioning arrangements
    • B65G23/44—Belt or chain tensioning arrangements
    • B—PERFORMING OPERATIONS; TRANSPORTING
    • B65—CONVEYING; PACKING; STORING; HANDLING THIN OR FILAMENTARY MATERIAL
    • B65G—TRANSPORT OR STORAGE DEVICES, e.g. CONVEYORS FOR LOADING OR TIPPING, SHOP CONVEYOR SYSTEMS OR PNEUMATIC TUBE CONVEYORS
    • B65G47/00—Article or material-handling devices associated with conveyors; Methods employing such devices
    • B65G47/52—Devices for transferring articles or materials between conveyors i.e. discharging or feeding devices
    • B—PERFORMING OPERATIONS; TRANSPORTING
    • B65—CONVEYING; PACKING; STORING; HANDLING THIN OR FILAMENTARY MATERIAL
    • B65G—TRANSPORT OR STORAGE DEVICES, e.g. CONVEYORS FOR LOADING OR TIPPING, SHOP CONVEYOR SYSTEMS OR PNEUMATIC TUBE CONVEYORS
    • B65G2201/00—Indexing codes relating to handling devices, e.g. conveyors, characterised by the type of product or load being conveyed or handled
    • B65G2201/04—Bulk
    • B65G2201/045—Sand, soil and mineral ore

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  • Engineering & Computer Science (AREA)
  • Mechanical Engineering (AREA)
  • Excavating Of Shafts Or Tunnels (AREA)

Abstract

The invention discloses a large-scale multipoint-driven continuous lifting method for a deep shaft, which is characterized in that shaft bottom materials are unloaded onto a first-stage material lifting device through a shaft bottom automatic unloading device arranged on a shaft bottom material transfer platform, then lifted onto a first-stage automatic unloading device through the first-stage material lifting device and unloaded onto a second-stage material lifting device, then lifted onto a second-stage automatic unloading device through the second-stage material lifting device and unloaded onto a third-stage material lifting device, and the like, so that the materials are finally lifted onto a shaft top discharging platform. The invention also discloses a large-scale multi-point driving continuous lifting device for the deep shaft. The invention can be used for ore transportation in a deep shaft with the annual output of 780 ten thousand tons per year in a deep shaft with the depth of 2000 meters.

Description

Large-scale multipoint-driving continuous lifting method and device for deep shaft and application
Technical Field
The invention relates to the technical field of material lifting, in particular to a large-scale multipoint-driven continuous lifting method and device for a deep vertical shaft and application.
Background
In recent years, as shallow mineral resources are depleted, metal mines are gradually advancing toward deep-well mining of mineral resources. The deepest vertical shaft of south Africa in developed world mining industry reaches 4350m, more and more ultra-large metal underground mines are built in China, the annual output of the aged platform ditch iron ore, the output of the ore in the mountain area is more than 1000 million t/a, the mining depth is more than 1500m, and the fact that the underground metal mines in China are developing from the current depth within 1000m to the depth of 1500 m-2000 m and the scale is more than 780 million t/a is shown.
The lifting system is a throat which is connected with the ground and the underground of a mine, is a necessary important key device for deep mining of the mine, and is also an important guarantee for safe production of the mine. Deep mass mining necessarily requires a higher lifting capacity of the hoisting system.
At present, three modes of single-rope winding, multi-rope winding and multi-rope friction are mainly adopted for shaft hoisting. The single-rope winding type lifting is only suitable for shallow well lifting working conditions, and the lifting height is not more than 350m generally. The multi-rope winding lifting scheme adopted by deep shafts in developed countries of the mining industry in the world such as south Africa has the lifting depth exceeding 2000m, but the single lifting capacity is only about 20t, and the requirement of large-scale mining in China cannot be met. And according to the traditional 6-rope friction type lifting, the deepest lifting height is only about 1400m according to the terminal load 100t (the effective load 50 t). Even if an immature 8-rope friction hoisting scheme is considered, due to the limitation of the load change rate of the steel wire rope (the load change rate of the steel wire rope should be less than or equal to 11.5), the steel wire rope is difficult to select, and the driving power of the hoisting machine is too large (the driving power is more than or equal to 13 MW). This traditional lifting means has met insurmountable technical bottleneck under the big freight volume of deep shaft promotes the operating mode, and the urgent need is researched novel lifting technology, breaks through current lifting means and promotes the restriction in the aspect of the tonnage and promote the height.
Domestic research on lifting technology focuses on the traditional intermittent discontinuous lifting direction, and the key points are multi-rope winding type lifting and multi-rope friction type lifting machines. In the aspect of continuous lifting technology, Hebei Tianze heavy industry machinery Co., Ltd is preliminarily practiced, an XLT160 bucket elevator is produced to carry out industrial tests in the New three-mine northern area of the Peak coal industry group, but a single-point driving mode is adopted, the lifting amount is 60 ten thousand t/a, the lifting height is 210m, and the system has limitation. Overseas, the united states compattake provides a belt type vertical continuous hoisting system for WCC mines of camey (Carmi) illinois, but due to carrier structural limitations, it can only be used for soft rock hoisting.
Disclosure of Invention
One of the technical problems to be solved by the present invention is to provide a large-scale multi-point driving continuous hoisting method for a deep shaft aiming at the above technical problems of the conventional intermittent discontinuous hoisting method, so as to solve the problem that the current hoisting technology is difficult to meet the large-scale hoisting requirement of the deep shaft.
The second technical problem to be solved by the present invention is to provide a device for implementing the above-mentioned deep shaft large-scale multi-point driving continuous hoisting method.
The invention aims to solve the technical problem of providing the application of the deep shaft large-scale multi-point driving continuous lifting method in the deep well.
The deep shaft large-scale multipoint-drive continuous lifting method is characterized in that shaft bottom materials are unloaded onto a first-stage material lifting device through a shaft bottom automatic unloading device arranged on a shaft bottom material transfer platform, then lifted onto a first-stage automatic unloading device through the first-stage material lifting device and unloaded onto a second-stage material lifting device, then lifted onto a second-stage automatic unloading device through the second-stage material lifting device and unloaded onto a third-stage material lifting device, and so on, and finally the materials are lifted onto a shaft top discharging platform.
In a preferred embodiment of the invention, each stage of material lifting device is driven by independent power.
The deep shaft large-scale multipoint-driving continuous lifting device serving as the second aspect of the invention comprises a shaft bottom material transfer platform, a shaft bottom automatic unloading device, a multi-stage material lifting device, a multi-stage automatic unloading device, a shaft top automatic unloading device and a shaft top discharging platform, wherein the shaft bottom automatic unloading device automatically unloads materials on the shaft bottom material transfer platform into a lifting hopper in the lowest stage material lifting device; each stage of automatic unloading device is arranged between the upper material lifting device and the lower material lifting device, and unloads the materials lifted by the lower material lifting device into a lifting hopper of the upper material lifting device; the materials lifted by the uppermost material lifting device are unloaded onto a wellhead discharging platform by the wellhead automatic unloading device.
In a preferred embodiment of the invention, the structures of the well bottom automatic unloading device, the multi-stage automatic unloading device and the well head automatic unloading device are the same, and the functions of transferring among the single-stage hoists are achieved; the unloading part and the loading part are communicated with each other, wherein an inlet of the unloading part in the automatic unloading device at the bottom of the well is in butt joint with an outlet of the material transfer platform at the bottom of the well, and an outlet of the loading part in the automatic unloading device at the bottom of the well is in butt joint with a lifting hopper in the material lifting device at the lowest stage; an inlet of an unloading part in the automatic unloading device is in butt joint with a lifting hopper in a next-stage material lifting device, and an outlet of a loading part in the automatic unloading device is in butt joint with a lifting hopper in a previous-stage material lifting device; the inlet of the unloading part in the wellhead automatic unloading device is in butt joint with the lifting hopper in the uppermost-stage material lifting device, and the outlet of the loading part in the wellhead automatic unloading device is in butt joint with the wellhead discharging platform.
In a preferred embodiment of the invention, the automatic unloading device at the well bottom, the automatic unloading device at the multi-stage and the automatic unloading device at the well head are loaded in an inflow type loading mode, and materials directly flow into the lifting hopper from the inlet of the unloading part through the outlet of the loading part to be loaded
In a preferred embodiment of the present invention, the loading part of the automatic unloading device at the well bottom, the automatic unloading device at the multi-stage and the automatic unloading device at the well head adopts one of a centrifugal loading mode, a centrifugal-gravity loading mode and a gravity loading mode. For the block ore with larger particles, a gravity loading mode is preferably adopted.
In a preferred embodiment of the invention, the unloading part and the loading part in the automatic unloading device at the well bottom, the automatic unloading device at multiple stages and the automatic unloading device at the well head all adopt a closed structure.
In a preferred embodiment of the present invention, each stage of the material lifting device at least comprises a tail pulley, a tension pulley, a driving device, a direction-changing wheel, a lifting chain, a plurality of sets of supporting wheel sets and a plurality of lifting hoppers, wherein the lifting chain is wound on the tail pulley and the tension pulley, and the driving device and the direction-changing wheel are arranged at the reversing position of the lifting chain; the lifting chain is turned from a vertical state to a horizontal state through a driving wheel in the driving device, and the lifting chain is turned from the horizontal state to the vertical state through the direction-changing wheel; the lifting chains on the two sides of the tail pulley are in a parallel vertical state, and the lifting chains on the two sides of the tensioning pulley are in a parallel horizontal state; a plurality of groups of supporting wheel sets are arranged at intervals on the vertical section of the lifting chain; two supporting wheels in each group of supporting wheel set commonly clamp the lifting chain passing through the group of supporting wheel sets; and a plurality of lifting hoppers are hung on the lifting chains at intervals.
In a preferred embodiment of the invention, the driving device comprises a motor, a compound brake and a driving wheel, wherein the motor drives the driving wheel to rotate, and the compound brake brakes the motor.
In a preferred embodiment of the invention, the composite brake is a controllable bidirectional composite non-return brake device, which comprises a non-return device, a working brake and a safety brake; the compound brake is distributed at the rear stage of the motor and performs bidirectional non-return braking or two-stage braking. The reverse check function is to prevent the lifting system from reverse rotation, the forward check is used as a working brake for stopping and braking after normal work is finished, and the safety brake is used for emergency braking when safety risks occur.
In a preferred embodiment of the present invention, the motor is a variable frequency variable speed motor.
In a preferred embodiment of the invention, the lifting chain is a high-strength circular ring chain, which can meet the requirement of long-distance and heavy-load conveying.
In a preferred embodiment of the invention, the lifting hopper is of a deep hopper construction.
In a preferred embodiment of the present invention, the two supporting wheels in each supporting wheel set are a large diameter supporting wheel and a small diameter supporting wheel, which mainly function to limit and support the lifting chain system, so as to prevent the lifting chain from swinging greatly, which causes a safety risk to the lifting system.
In a preferred embodiment of the invention, the motors in the material lifting devices at all levels are controlled by adopting a centralized and cooperative operation strategy.
In a preferred embodiment of the invention, the motors in each stage of the material lifting device have equal distance and same power, and the purpose is to share the load equally by a plurality of motors, reduce the load of the lifting bearing part, greatly reduce the strength and the self weight of the lifting bearing part and improve the operation efficiency.
The large lump ore will add resistance to the lifting system and impact and collide with the lifting vessel and shaft, so in a preferred embodiment of the invention, a flow breaking system is included in front of the bottom hole material transfer platform to change the large lump ore into more uniform small lump ore which enters the lifting hopper to eliminate impact and collision.
In a preferred embodiment of the present invention, the tensioning wheel is tensioned by an adjustable mechanical tensioning manner to provide an initial tensioning force for the lifting chain, thereby ensuring continuous operation of the lifting circulation system.
As an application of the third aspect of the invention, the deep shaft large scale multi-point drive continuous lifting device is used for deep shaft ore transportation of 2000 meters deep shaft with annual output of 780 ten thousand tons/year.
Due to the adoption of the technical scheme, the ore is loaded to the lifting hopper in the lowest-level material lifting device through the shaft bottom material transfer platform well to reach the upper-level material transfer platform, then is unloaded to the upper-level automatic unloading device and is unloaded into the lifting hopper of the upper-level material lifting device through the upper-level automatic unloading device, the ore is continuously lifted, finally the well mouth is reached, and the ore is unloaded through the well mouth automatic unloading device, so that the aim of continuously lifting the ore is fulfilled.
Drawings
Fig. 1 is a schematic diagram of a large-scale multi-point driving continuous lifting device for a deep shaft of the invention.
Fig. 2 is a schematic view of a material lifting device in the deep shaft large scale multi-point drive continuous lifting device of the present invention.
Fig. 3 is a schematic diagram of the automatic unloading device in the deep shaft large-scale multi-point driving continuous lifting device of the invention.
Fig. 4 is a front view showing the structure of a driving wheel in the deep shaft large-scale multi-point driving continuous lifting device of the present invention.
Fig. 5 is a side view of the driving wheel structure in the deep shaft large scale multi-point driving continuous lifting device of the present invention.
Fig. 6 is a perspective view of the driving wheel in the deep shaft large scale multi-point driving continuous lifting device of the present invention.
Detailed Description
The invention will be further described by taking the deep shaft large-scale multi-point driving continuous lifting device of the invention applied to the deep shaft ore transportation of 2000m deep shaft with annual output of 780 ten thousand tons/year as an example in combination with the attached drawings and the detailed description.
Referring to fig. 1, the deep shaft large-scale multipoint driving continuous lifting device shown in the figure comprises a shaft bottom material transfer platform 1, shaft bottom automatic unloading devices 2, 5-level material lifting devices 3a, 3b, 3c, 3d, 3e, 4-level automatic unloading devices 4a, 4b, 4c, 4d, a shaft top automatic unloading device 5 and a shaft top discharging platform 6.
The automatic unloading device 2 at the bottom of the well is arranged between the discharge end of the material transfer platform 1 at the bottom of the well and the feed end of the material lifting device 3 a; the automatic unloading device 4a is arranged between the discharge end of the material lifting device 3a and the feed end of the material lifting device 3 b; the automatic unloading device 4b is arranged between the discharge end of the material lifting device 3b and the feed end of the material lifting device 3 c; the automatic unloading device 4c is arranged between the discharge end of the material lifting device 3c and the feed end of the material lifting device 3 d; the automatic unloading device 4d is arranged between the discharge end of the material lifting device 3d and the feed end of the material lifting device 3 e; the wellhead automatic unloading device 5 is arranged between the discharge end of the material lifting device 3e and the wellhead discharge platform 6. The automatic unloading device 2 at the bottom of the well, the automatic unloading devices 4a, 4b, 4c and 4d at the level of the 4 and the automatic unloading devices 5 at the top of the well have the transferring function among the material lifting devices 3a, 3b, 3c, 3d and 3e at the level of the 5.
The automatic unloading device 2 at the bottom of the well automatically unloads the ores on the material transfer platform 1 at the bottom of the well into a lifting hopper at the feeding end of a material lifting device 3a, then the material lifting device 3a lifts the ores to the position of an automatic unloading device 4a, then the ores are automatically unloaded into the automatic unloading device 4a, and the ores are automatically loaded into the lifting hopper at the feeding end of a material lifting device 3b through the automatic unloading device 4 a; then the ore is lifted to the position of an automatic unloading device 4b by a material lifting device 3b, then is automatically unloaded into the automatic unloading device 4b, and is automatically loaded into a lifting hopper at the feeding end of a material lifting device 3c by the automatic unloading device 4 b; then the ore is lifted to the position of the automatic unloading device 4c by the material lifting device 3c, then is automatically unloaded into the automatic unloading device 4c, and is automatically loaded into a lifting hopper in the feeding end of the material lifting device 3d through the automatic unloading device 4 c; then the ore is lifted to the position of the automatic unloading device 4d by the material lifting device 3d, then is automatically unloaded into the automatic unloading device 4d, and is automatically loaded into a lifting hopper at the feeding end of the material lifting device 3e through the automatic unloading device 4 d; and then the material lifting device 3e lifts the ore to a wellhead to wellhead automatic unloading device 5, and the ore is automatically loaded to a wellhead discharging platform 6 through the wellhead automatic unloading device 5.
Of course, the material lifting device of the present invention is not limited to 5 stages, and the automatic unloading device is not limited to 4 stages, and may be set according to the depth of the shaft.
As the large lump ore can increase resistance to the material lifting devices 3a, 3b, 3c, 3d and 3e and impact and collide to the lifting hoppers and the shaft, the invention arranges a flow breaking system (not shown in the figure) in front of the shaft bottom material transfer platform 1, which changes the large lump ore into more uniform small lump ore which enters the lifting hoppers to eliminate the impact and collision.
Referring to fig. 2, the material lifting devices 3a, 3b, 3c, 3d, 3e of the present invention have the same structure, and each comprises at least a tail pulley 10, a tensioning pulley 20, a driving device 30, a direction-changing wheel 40, a lifting chain 50, a plurality of sets of supporting wheel sets 60, and a plurality of lifting hoppers 70.
The lifting chain 50 is a high-strength ring chain, and can meet the requirement of long-distance and heavy-load conveying. The lift chain 50 is looped around the tail pulley 10 and the tension pulley 20. The tensioning wheel 20 is tensioned in an adjustable mechanical tensioning mode to provide an initial tensioning force for the lifting chain and ensure continuous operation of the lifting circulation system.
The driving device 30 and the direction-changing wheel 40 are arranged at the reversing position 51 of the lifting chain 50, the lifting chain 50 is turned from the vertical state to the horizontal state through the driving wheel 31 in the driving device 30, and the lifting chain 50 is turned from the horizontal state to the vertical state through the direction-changing wheel 40; the lift chains 50 on both sides of the tail pulley 10 are parallel and vertical, and the lift chains 50 on both sides of the tension pulley 20 are parallel and horizontal.
The driving device 30 includes a motor, a compound brake, and a driving wheel 31. Referring to fig. 4 to 6, the driving wheel 31 has a double chain structure.
The motor drives the driving wheel 31 to rotate, and the compound brake brakes the motor. The composite brake is a controllable bidirectional composite non-return brake device, which comprises a non-return device, a working brake and a safety brake; the composite brake is distributed at the rear stage of the motor and performs bidirectional non-return braking or two-stage braking. The reverse check function is to prevent the lifting system from reverse rotation, the forward check is used as a working brake for stopping and braking after normal work is finished, and the safety brake is used for emergency braking when safety risks occur.
The motor is high-power three-phase synchronous motor, and the motor distance among 5 grades of material hoisting device 3a, 3b, 3c, 3d, 3e is equal, and the power is the same, and the purpose is through many motors average sharing load, reduces the load that promotes bearing part, reduces the intensity and the dead weight that promote bearing part greatly, improves the operating efficiency.
The motors in the 5-level material lifting devices 3a, 3b, 3c, 3d and 3e are controlled by adopting a centralized and cooperative operation strategy.
A plurality of sets of support wheel assemblies 60 are spaced apart on the vertical section of the lift chain 50; the two support wheels 61, 62 of each set of support wheels 60 together grip the lifting chain 50 passing through the set of support wheels 60. Two supporting wheels 61, 62 in each supporting wheel set 60 are a major diameter supporting wheel and a minor diameter supporting wheel, and the main function is to limit and support the lifting chain 50 system, so as to prevent the lifting chain 50 from swinging greatly, which causes the safety risk of the lifting system.
A plurality of lifting hoppers 70 are suspended at intervals on the lifting chain 50. Each lifting hopper 70 is of a deep hopper construction suitable for conveying small lumps of ore.
Referring to fig. 3, the automatic unloading device 2 at the bottom of the well, the automatic unloading devices 4a, 4b, 4c, 4d at the level of 4, and the automatic unloading device 5 at the top of the well are loaded in an inflow type loading manner, and each of the automatic unloading devices comprises an unloading part 80 and a loading part 90 which are communicated with each other, the unloading part 80 and the loading part 90 are both in a closed structure, ore directly flows into the lifting hopper 70 from an inlet of the unloading part 80 through an outlet of the loading part 90 for loading, and the loading parts 90 adopt one of a centrifugal type loading manner, a centrifugal-gravity type loading manner, and a gravity type loading manner. For the block ore with larger particles, a gravity loading mode is preferably adopted.

Claims (10)

1. The deep shaft large-scale multipoint-driving continuous lifting method is characterized in that shaft bottom materials are unloaded onto a first-level material lifting device through a shaft bottom automatic unloading device arranged on a shaft bottom material transfer platform, then lifted onto a first-level automatic unloading device through the first-level material lifting device and unloaded onto a second-level material lifting device, then lifted onto a second-level automatic unloading device through the second-level material lifting device and unloaded onto a third-level material lifting device, and the like in sequence, and finally lifted onto a shaft top discharging platform.
2. The large-scale multipoint-driven continuous lifting device for the deep shaft is characterized by comprising a shaft bottom material transfer platform, a shaft bottom automatic unloading device, a multi-stage material lifting device, a multi-stage automatic unloading device, a shaft top automatic unloading device and a shaft top discharging platform, wherein the shaft bottom automatic unloading device automatically unloads materials on the shaft bottom material transfer platform into a lifting hopper in the lowest stage material lifting device; each stage of automatic unloading device is arranged between the upper material lifting device and the lower material lifting device, and unloads the materials lifted by the lower material lifting device into a lifting hopper of the upper material lifting device; the materials lifted by the uppermost material lifting device are unloaded onto a wellhead discharging platform by the wellhead automatic unloading device.
3. The large-scale multipoint driving continuous lifting device for the deep shaft according to claim 2, wherein the structures of the well bottom automatic unloading device, the multistage automatic unloading device and the well head automatic unloading device are the same, and the functions of transferring among single-stage elevators are achieved; the unloading part and the loading part are communicated with each other, wherein an inlet of the unloading part in the automatic unloading device at the bottom of the well is in butt joint with an outlet of the material transfer platform at the bottom of the well, and an outlet of the loading part in the automatic unloading device at the bottom of the well is in butt joint with a lifting hopper in the material lifting device at the lowest stage; an inlet of an unloading part in the automatic unloading device is in butt joint with a lifting hopper in a next-stage material lifting device, and an outlet of a loading part in the automatic unloading device is in butt joint with a lifting hopper in a previous-stage material lifting device; the inlet of the unloading part in the wellhead automatic unloading device is in butt joint with the lifting hopper in the uppermost-stage material lifting device, and the outlet of the loading part in the wellhead automatic unloading device is in butt joint with the wellhead discharging platform.
4. The deep shaft large-scale multipoint driving continuous lifting device according to claim 3, wherein the bottom-hole automatic unloading device, the multi-stage automatic unloading device and the wellhead automatic unloading device are loaded in an inflow type loading mode, and materials directly flow into the lifting hopper from an inlet of the unloading part through an outlet of the loading part to be loaded
5. The deep shaft large-scale multipoint driving continuous lifting device according to claim 3 or 4, wherein each stage of material lifting device at least comprises a tail wheel, a tension wheel, a driving device, a direction-changing wheel, a lifting chain, a plurality of sets of supporting wheel sets and a plurality of lifting hoppers, the lifting chain is wound on the tail wheel and the tension wheel, and the driving device and the direction-changing wheel are arranged at the reversing position of the lifting chain; the lifting chain is turned from a vertical state to a horizontal state through a driving wheel in the driving device, and the lifting chain is turned from the horizontal state to the vertical state through the direction-changing wheel; the lifting chains on the two sides of the tail pulley are in a parallel vertical state, and the lifting chains on the two sides of the tensioning pulley are in a parallel horizontal state; a plurality of groups of supporting wheel sets are arranged at intervals on the vertical section of the lifting chain; two supporting wheels in each group of supporting wheel set commonly clamp the lifting chain passing through the group of supporting wheel sets; and a plurality of lifting hoppers are hung on the lifting chains at intervals.
6. The deep shaft large-scale multipoint drive continuous lifting device according to claim 5, wherein the driving device comprises a motor, a compound brake and a driving wheel, the motor drives the driving wheel to rotate, and the compound brake brakes the motor.
7. The deep shaft multi-point large scale driving continuous lifting device according to claim 5, wherein the two supporting wheels of each supporting wheel set are a large diameter supporting wheel and a small diameter supporting wheel.
8. The deep shaft large-scale multipoint drive continuous lifting device according to claim 5, wherein motors in each stage of material lifting device are controlled by adopting a centralized and cooperative operation strategy.
9. The deep shaft large-scale multipoint driving continuous lifting device as claimed in claim 5, wherein motors in each level of material lifting device are equal in distance and same in power, so that the load is equally distributed by multiple motors, the load of the lifting bearing part is reduced, the strength and the self weight of the lifting bearing part are greatly reduced, and the operation efficiency is improved.
10. The deep shaft large scale multi-point drive continuous hoisting device according to any one of claims 2 to 9 is used for deep shaft ore transportation in 2000 meters deep wells with annual output of 780 ten thousand tons/year.
CN201911131543.6A 2019-11-19 2019-11-19 Large-scale multipoint-driving continuous lifting method and device for deep shaft and application Pending CN110834873A (en)

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Application publication date: 20200225