CN116119378A - Bridge crane type ore transportation system and ore transportation method - Google Patents

Abstract

The application discloses bridge crane formula ore transportation system and transportation method, bridge crane formula ore transportation system has included the bridge body, horizontal carrier assembly, hoisting accessory and skip, the bridge body is arranged in the top in ore mining area, if the bridge body can be arranged in the top of the open pit of surface mine, then load the ore in the skip, can hoist and mount skip and ore through hoisting accessory, carry out vertical transport to ore and skip, then can drive the ore in skip or the skip through horizontal carrier assembly and remove, realize the horizontal transport of ore, can transport the week side in ore mining area with ore and skip based on this, accomplish the transportation of ore. The bridge crane type ore transportation system provided by the embodiment of the application can reduce comprehensive energy consumption of ore transportation, improve the energy utilization rate, reduce carbon emission, be favorable to reducing the slope angle of a transportation upper and reduce the rock stripping amount, and has huge economic benefit especially for deep open pit mines.

Description

Bridge crane type ore transportation system and ore transportation method

Technical Field

The embodiment of the application relates to the technical field of mining, in particular to a bridge crane type ore transportation system and an ore transportation method.

Background

The existing open pit mining transportation system comprises transportation modes such as mining trucks, rubber belt transportation, a footrill drop shaft and the like. The truck transportation and the rubber belt conveyor are the main transportation modes of the existing strip mine. The truck transportation system has flexible operation, can simplify the exploitation process and reduce the project amount of the capital construction, but has the problems of high transportation cost, complex transportation and scheduling, poor production continuity, short economic and reasonable transportation distance, high maintenance difficulty, serious environmental pollution, high energy consumption, high carbon emission, high cost, intensive labor and the like. The belt conveyor transportation system is a continuous transportation mode, can ensure continuous operation of mining equipment, has strong transportation capability and climbing capability, is easy to realize automatic control, requires a small number of workers, but is generally limited by the problems of small transportation elevation angle, inapplicability to deep open-pit mines, high initial investment cost, low flexibility and the like. In addition, the open-up transportation mode of the footrill drop shaft is only generally applicable to hillside strip mines with large ground height differences. Thus, innovative designs for surface mining transportation are significant for controlling transportation costs and protecting the ecological environment.

Disclosure of Invention

The present invention aims to solve at least one of the technical problems existing in the prior art or related art.

To this end, a first aspect of the invention provides a bridged suspension ore transport system.

A second aspect of the invention provides a method of ore transport.

In view of this, there is provided in accordance with a first aspect of an embodiment of the present application a bridged suspension ore transport system, comprising:

a bridge disposed above or within the ore mining area;

a horizontal carrier assembly disposed on the bridge;

the lifting device is connected to the horizontal carrying assembly;

and the hoisting device is connected with the skip.

In one possible embodiment, the horizontal carrier member comprises:

the rail is arranged along the length direction of the bridge body, and the lifting device is connected to the rail in a sliding manner;

and the traction device is connected with the lifting device and is used for driving the lifting device to move on the track.

In one possible embodiment, the horizontal carrier member comprises:

the temporary ore bin is arranged on the bridge body;

The rubber belt conveyor is arranged on the bridge body and is communicated to the temporary ore bin.

In one possible embodiment, the bridged suspension ore transport system further comprises:

the bridge pile foundation is arranged on the periphery of the ore mining area, and the bridge body is connected with the bridge pile foundation;

a support steel girder foundation disposed within the ore mining area;

the support steel beam is connected with the support steel beam foundation and the bridge body;

wherein the supporting steel beam is obliquely supported on the strip mine slope; or (b)

The supporting steel beam is obliquely and vertically supported on the horizontal steps of the strip mine; or (b)

The support steel beam is of a truss structure; or (b)

The support steel girder is fixedly connected to the bridge body and is a telescopic support steel girder; or (b)

The support steel beam is detachably connected to the bridge body through an auxiliary fixing piece.

In one possible embodiment, the bridged suspension ore transport system further comprises:

a power assembly, the power assembly comprising: the cable and the power supply system are connected with one end of the cable, and the power supply system is connected with the lifting device and the horizontal carrying assembly;

The spraying assembly is arranged on the bridge body;

the hoisting device comprises:

the steel cable is connected to the winch and the skip.

In one possible embodiment, the bridged suspension ore transport system further comprises:

and the command control assembly is connected with the power supply system, the horizontal carrying assembly and the lifting device and is used for controlling the ore drawing and loading, the lifting transportation and the ore unloading and returning of the lifting skip.

In one possible embodiment, the bridged suspension ore transport system further comprises: a mineral bin assembly disposed on a peripheral side of the mineral extraction area;

the ore bin assembly includes: the device comprises a mining bucket, a mining gate and an external ore transfer tool of the strip mine, wherein the mining bucket is arranged on the external ore transfer tool of the strip mine, and the mining gate is arranged on the mining bucket; or (b)

The ore bin assembly comprises an ore yard arranged on the periphery of the ore mining area and an external ore transfer tool of the strip mine;

the strip mine external ore transfer tool includes at least one of a rail electric locomotive and a mine car, an adhesive tape, truck transportation, and a cableway.

According to a second aspect of embodiments of the present application, there is provided an ore transportation method for a bridge-hung ore transportation system according to any one of the above-mentioned aspects, the ore transportation method comprising:

determining the bridge set-up locations and quantities based on design parameters of the ore mining area and the geological survey data;

providing a bridge over the ore mining area and providing a horizontal carrier assembly and a lifting device over the bridge;

and filling the ore to be transported into the skip, and controlling the horizontal carrying assembly and the lifting device to transport the skip through the command control assembly.

In a possible embodiment, the step of providing a bridge over the ore mining area and providing a horizontal carrier assembly and lifting device over the bridge further comprises:

under different working conditions, transferring the skip through the horizontal carrying assembly and the lifting device to acquire transportation stability information;

under the condition that the transportation stability information does not meet the design requirement, increasing the number of the horizontal carrying components and/or the number of steel ropes of the lifting device and/or increasing support steel beams connected to the bridge body and/or reducing the skip weight;

Wherein, different operating modes include: the weight of the skip, the deflection of the skip, the swing amplitude of the skip, the transportation path of the skip, the blasting vibration working condition and the pneumatic working condition;

design parameters for the ore mining area include: the open pit design boundary size, at least one of open pit annual production traffic volume, slope angle, and mine geology.

In one possible embodiment, the ore transfer method further comprises:

adding a support steel beam connected to the bridge body; and/or

In the event that ore in the ore mining area is fully mined, the bridge and the horizontal carrier assembly are disassembled for recycling.

Compared with the prior art, the invention at least comprises the following beneficial effects:

the bridge crane type ore transportation system that this embodiment provided has included the bridge body, the horizontal carrier assembly, hoisting accessory and skip, the bridge body is arranged in the top or the ore mining area in ore mining area, if the bridge body can be arranged in the top of the open pit of surface mine, then load the ore in the skip, can hoist skip and ore through hoisting accessory, carry out vertical transport to ore and skip, then can drive the ore in skip or the skip through the horizontal carrier assembly and remove, realize the horizontal transport of ore, can transport the week side in ore mining area with ore and skip based on this, accomplish the transportation of ore. Through the bridge crane formula ore transportation system that this application embodiment provided, through setting up the bridge body and orbital mode realization ore promote perpendicularly and horizontal transport work. Compared with the traditional mining truck transportation mode, the transportation mode has the advantages that: electricity can be used as energy, carbon emission is reduced, and the energy utilization rate of ore transportation is improved; road dust pollution generated in the truck transportation process is avoided, and the energy is saved and the environment is protected; the dynamic load of the mining truck on the slope road is reduced, and the slope stability is facilitated; the arrangement width of the transportation road is reduced, the slope angle of the transportation side is reduced, the rock stripping amount is reduced, and the economic benefit is very great especially for deep open-pit mines; the number of transportation personnel in the pit can be greatly reduced, the intelligent construction of the mine is facilitated, the production efficiency is improved, and the personnel accident probability is essentially reduced. Compared with a belt type conveying system, the rock stripping amount is reduced, the cost is reduced, and the flexibility in the conveying process is improved. In the aspect of track and bridge construction, open pit is not formed in the initial stage of open pit construction, and bridge construction is equivalent to construction on flat ground or at a place which is slightly higher than flat ground, so that the difficulty is greatly reduced and the cost is greatly reduced compared with bridge construction in a deep mountain canyon.

Drawings

Various other advantages and benefits will become apparent to those of ordinary skill in the art upon reading the following detailed description of the preferred embodiments. The drawings are only for purposes of illustrating the preferred embodiments and are not to be construed as limiting the application. Also, like reference numerals are used to designate like parts throughout the figures. In the drawings:

FIG. 1 is a schematic block diagram of a bridged-type ore transport system of one embodiment provided herein;

FIG. 2 is an enlarged schematic view of a portion of FIG. 1 at A;

FIG. 3 is a schematic block diagram of a lifting device of a bridging type ore transport system according to one embodiment of the present application;

FIG. 4 is a schematic block diagram of a bridge-hung ore transport system of another embodiment provided herein;

FIG. 5 is an enlarged partial schematic view at B in FIG. 4;

FIG. 6 is a schematic block diagram of a bridge-hung ore transport system according to yet another embodiment provided herein;

FIG. 7 is an enlarged partial schematic view of FIG. 6 at C;

FIG. 8 is a partially enlarged schematic illustration of FIG. 6 at D;

fig. 9 is a schematic step flow diagram of an ore transportation method of an embodiment provided herein.

The correspondence between the reference numerals and the component names in fig. 1 to 8 is:

110 bridge body, 120 track, 130 lifting device, 140 skip, 150 traction device, 160 bridge pile foundation, 170 supporting steel beam foundation, 180 supporting steel beam, 190 cable, 200 power supply system, 210 ore bin assembly, 220 command control assembly, 230 temporary ore bin, 240 adhesive tape conveyor;

131 windlass, 132 steel rope, 211 ore bucket, 212 ore drawing gate, 213 external ore transfer tool of strip mine.

Detailed Description

In order to better understand the technical solutions described above, the technical solutions of the embodiments of the present application are described in detail below through the accompanying drawings and the specific embodiments, and it should be understood that the embodiments of the present application and the specific features in the embodiments are detailed descriptions of the technical solutions of the embodiments of the present application, and not limit the technical solutions of the present application, and the embodiments of the present application and the technical features in the embodiments of the present application may be combined with each other without conflict.

The method considers that ore transportation is an important loop in the whole mining production process, the truck has good flexibility, and the method is widely applied to strip mines, but has the problems of high energy consumption, low efficiency, large pollution and the like. Along with the continuous increase of the mining depth of the strip mine, the transportation distance of the trucks for returning and transporting the ore out of the pit at the highwall is obviously increased, and the problems of truck transportation efficiency, environmental protection and the like are more remarkable, so that the method becomes one of important factors for restricting the high-quality development of the strip mine. The continuous and semi-continuous strip mine transportation process system using the belt conveyor as the core transportation equipment has the advantages of high efficiency, low energy consumption, small pollution and the like, but has the defect of poor flexibility, is influenced by the slope angle of a mining site and the like, and is difficult to be widely applied to the field of strip mine transportation. In addition, the open-up transportation mode of the footrill drop shaft is only generally applicable to hillside strip mines with large ground height differences. Embodiments based on this application provide a bridge crane type ore transport system and an ore transfer method.

As shown in fig. 1 to 8, according to a first aspect of an embodiment of the present application, there is provided a bridged suspension ore transport system, comprising: a bridge body 110, the bridge body 110 being arranged above or within the ore mining area; a horizontal carrier assembly disposed on the bridge body 110; a lifting device 130, wherein the lifting device 130 is connected to the horizontal carrying assembly; a skip 140, and a lifting device 130 attached to the skip 140.

The bridge crane type ore transportation system that this embodiment provided has included the bridge body 110, the horizontal carrier assembly, hoisting accessory 130 and skip 140, the bridge body 110 is arranged in the top of ore mining area, if the bridge body 110 can be arranged in the top ore mining area of open pit of opencast mine, then load the ore in skip 140, can hoist skip 140 and ore through hoisting accessory 130, carry out vertical transport to ore and skip 140, then can drive the ore in skip 140 or the skip 140 through the horizontal carrier assembly and remove, realize the horizontal transport of ore, can transport the week side in ore mining area with ore and skip 140 based on this, accomplish the transportation of ore. Through the bridging formula ore transportation system that this application embodiment provided, through the mode of setting up the bridge body 110 and track 120 realize the vertical lift and the horizontal transportation work of ore. Compared with the traditional mining truck transportation mode, the transportation mode has the advantages that: electricity can be used as energy, carbon emission is reduced, and the energy utilization rate of ore transportation is improved; road dust pollution generated in the truck transportation process is avoided, and the energy is saved and the environment is protected; the dynamic load of the mining truck on the slope road is reduced, and the slope stability is facilitated; the arrangement width of the transportation road is reduced, the slope angle of the transportation side is reduced, the rock stripping amount is reduced, and the economic benefit is very great especially for deep open-pit mines; the number of transportation personnel in the pit can be greatly reduced, the intelligent construction of the mine is facilitated, the production efficiency is improved, and the personnel accident probability is essentially reduced. Compared with a belt type conveying system, the rock stripping amount is reduced, the cost is reduced, and the flexibility in the conveying process is improved. In the aspect of the construction of the track 120 and the bridge body 110, the open pit is not formed at the initial stage of the mine construction of the strip mine, the construction of the bridge body 110 is equivalent to being carried out on a flat ground or a high place which is slightly higher than the flat ground, and compared with the construction of a bridge in a deep mountain canyon, the difficulty is greatly reduced, and the cost is also greatly reduced.

According to the embodiment of the application, the long-term use experience of the prior art is considered, and a complete technical scheme is provided on the transportation system, but along with the promotion of green mine construction, the energy conservation and emission reduction requirements of mine enterprises on exploitation and transportation links are higher and higher. As mine main carrying equipment with high energy consumption and high emission, the mine car is necessary to be researched and explored by energy saving technology. The high cost, low flexibility of the belt conveyor system also requires technical innovation. Aiming at the problems of high energy consumption, high pollution, high cost, poor flexibility of a belt type conveying system and the like of the truck, the embodiment of the application provides a bridge crane type ore conveying system. At the initial stage of mining, a bridge body 110 which is transversely arranged on the upper disc and the lower disc is constructed above the open pit, ores are horizontally transported to a lifting skip 140 below the bridge body 110 from a production step at the bottom of the open pit, and a lifting device 130 runs on a track 120 and lifts the lower ore skip 140, so that the horizontal lifting and transportation of the ores from the pit bottom to the open pit mouth are realized. On the one hand, as the mining depth is increased, the supporting steel beam 180 fixed on the final side wall is gradually increased below the track 120 to realize the reinforcement of the side slope, and the principle is that the normal force of the structural surface of the side slope is increased, the anti-skid force of the side slope is also increased, and the external force reinforcement of the side slope is realized by the supporting force of the bridge body 110; on the other hand, the transportation mode replaces a truck transportation system widely adopted in the future, thereby essentially realizing the aims of energy conservation, consumption reduction, low carbon, emission reduction, dust suppression, environmental protection and power-assisted environment protection, and promoting the intelligent construction of open pit mining.

In one possible embodiment, the horizontal carrier member comprises: a rail 120, the rail 120 being disposed along a length direction of the bridge body 110, the lifting device 130 being slidably connected to the rail 120; and the traction device 150 is connected to the lifting device 130 and is used for driving the lifting device 130 to move on the track 120.

It will be appreciated that the bridge-hung ore transportation system provided in the embodiments of the present application is used for transporting ores, and ores may include, but are not limited to, useful ores with a useful mineral grade exceeding a recovery standard and waste rocks with a low recovery efficiency or waste rocks without a recovery value, and the specific transportation object of the combined-hung ore transportation system is not limited in this application.

It will be appreciated that the bridge-hung ore transportation system provided in this embodiment of the present application may transport materials and equipment through the skip 140, in addition to the ore through the skip 140, for example, materials for construction in a mining area may be transported through the skip 140, and may also transport downhole equipment such as a drill bit.

The bridge crane type ore transportation system that this embodiment provided has included the bridge body 110, track 120, hoisting accessory 130, skip 140 and draw gear 150, the bridge body 110 is arranged in the top of ore mining area, if the bridge body 110 can be arranged in the top of the open pit of surface mine, then fill the ore in skip 140, can hoist skip 140 and ore through hoisting accessory 130, carry out vertical transport to ore and skip 140, then can drive hoisting accessory 130 together with skip 140 and remove along the direction of track 120 through draw gear, can carry out horizontal transport to ore and skip 140 based on this, can transport ore and skip 140 to the week side of ore mining area, accomplish the transportation of ore. Through the bridging formula ore transportation system that this application embodiment provided, through the mode of setting up the bridge body 110 and track 120 realize the vertical lift and the horizontal transportation work of ore. Compared with the traditional mining truck transportation mode, the transportation mode has the advantages that: electricity can be used as energy, carbon emission is reduced, and the energy utilization rate of ore transportation is improved; road dust pollution generated in the truck transportation process is avoided, and the energy is saved and the environment is protected; the dynamic load of the mining truck on the slope road is reduced, and the slope stability is facilitated; the arrangement width of the transportation road is reduced, the slope angle of the transportation side is reduced, the rock stripping amount is reduced, and the economic benefit is very great especially for deep open-pit mines; the number of transportation personnel in the pit can be greatly reduced, the intelligent construction of the mine is facilitated, the production efficiency is improved, and the personnel accident probability is essentially reduced. Compared with a belt type conveying system, the rock stripping amount is reduced, the cost is reduced, and the flexibility in the conveying process is improved. In the aspect of the construction of the track 120 and the bridge body 110, the open pit is not formed at the initial stage of the mine construction of the strip mine, the construction of the bridge body 110 is equivalent to being carried out on a flat ground or a high place which is slightly higher than the flat ground, and compared with the construction of a bridge in a deep mountain canyon, the difficulty is greatly reduced, and the cost is also greatly reduced.

As shown in fig. 6-8, in one possible embodiment, the horizontal carrier assembly comprises: a temporary ore bin 230, the temporary ore bin 230 being disposed on the bridge body 110; and a belt conveyor 240, the belt conveyor 240 being disposed on the bridge body 110, the belt conveyor 240 being connected to the temporary storage 230.

In this embodiment, another version of a horizontal carrier assembly is provided, which may include a temporary ore bin 230 and a belt conveyor 240, in which case the lifting device 130 lifts the skip 140 vertically only and does not move horizontally. After the skip 140 is lifted by the lifting device 130 to exceed the bridge body 110 by a certain height, the skip 140 is unloaded to the temporary ore bin 230 on the bridge body 110, the temporary ore bin 230 evenly drops the ore to the belt conveyor 240, namely, the horizontal transportation of the ore is completed by the temporary ore bin 230 and the belt conveyor 240 on the bridge body 110, and the ore is transported to the pit-mouth ore bin of the strip mine.

As shown in fig. 4, in one possible embodiment, the bridged suspension ore transport system further comprises: bridge pile foundation 160, bridge pile foundation 160 is arranged at the periphery of the ore mining area, and bridge body 110 is connected to bridge pile foundation 160; a support steel girder base 170, the support steel girder base 170 being disposed in the ore mining area; the support steel beams 180, the support steel beams 180 being connected to the support steel beam foundation 170 and the bridge body 110.

In this technical solution, the bridge crane type ore transportation system may further include a bridge pile foundation 160, and the stability of the fixing of the bridge body 110 may be improved by the arrangement of the bridge pile foundation 160.

In the technical scheme, in the aspect of slope reinforcement, along with the increase of the mining depth, the supporting steel beam 180 fixed on the final slope is gradually increased below the bridge body 110, so that the normal force of the slope structural surface is increased, the anti-slip force of the slope structural surface is also increased, the external force reinforcement of the slope is realized by supporting the bridge body 110 and the pile foundation engineering of the bridge in the slope, and the novel pre-reinforcement mode of the slope rock mass is realized in fact without increasing much cost.

In one possible embodiment, the support steel beams 180 are supported obliquely to the strip mine slope; and/or the supporting steel girder 180 is vertically supported in an inclined manner on the horizontal steps of the strip mine; and/or the support steel beams 180 are truss structures; and/or the support steel beams 180 are fixedly connected to the bridge body 110, and the support steel beams 180 are telescopic support steel beams 180; or the support steel beams 180 are detachably connected to the bridge body 110 by auxiliary fixtures.

In this technical scheme, further provided the setting mode and the connected mode of supporting girder steel 180, so set up the installation and the fixed of the girder steel 180 of being convenient for, the girder steel 180 of being convenient for stabilizes the support bridge body 110.

As shown in fig. 3, in one possible embodiment, the bridged suspension ore transport system further comprises: a power assembly, the power assembly comprising: a cable 190 and a power supply system 200, one end of the cable 190 being connected to the power supply system 200, the power supply system 200 being connected to the lifting device 130 and the horizontal carrier assembly.

In this technical scheme, the bridge crane type ore transportation system can also include power component, and power component can include cable 190 and electrical power generating system 200, and the other end of cable 190 can be connected with the power, and then cable 190 can carry the electric energy to electrical power generating system 200, can be for hoist device 130 and horizontal carrier assembly through electrical power generating system 200, and then can reduce carbon emission, improve ore transportation energy utilization with electric energy drive hoist device 130 and horizontal carrier assembly.

In one possible embodiment, the bridged suspension ore transport system further comprises: and the spraying assembly is arranged on the bridge body.

In the technical scheme, the bridge crane type ore transportation system can further comprise a spraying component arranged above the bridge body, liquid can be sprayed into the open pit through the arrangement of the spraying component, such as liquid water can be sprayed, on the one hand, the spraying component is arranged above the bridge body, the aperture of the top of the strip mine is utilized, dust in the open pit can be restrained through the spraying component, such as dust generated by blasting, road dust and the like can be restrained; on the other hand, under the condition that local fire condition appears in the mining area, can also spray the liquid water through spraying the subassembly, can play the effect of putting out a fire.

In some examples, the spray assembly may include a sliding rail disposed along the length of the bridge 110; the control piece is connected to the sliding rail in a sliding way; the shower nozzle, the shower nozzle sets up on the control, and the control is used for adjusting the spray angle of shower nozzle.

In one possible embodiment, the bridged suspension ore transport system further comprises: and the command control assembly 220, wherein the command control assembly 220 is connected with the power supply system, the horizontal carrying assembly and the lifting device, and the command control assembly 220 is used for controlling the ore drawing and loading, the lifting and transporting and the ore unloading and returning of the lifting skip. The arrangement is convenient for carrying out unified control on the transportation of ores, and improves the stability and safety of ore transportation.

As shown in fig. 2 and 5, in one possible embodiment, the lifting device 130 includes: a hoist 131 and a rope 132, the rope 132 being connected to the hoist 131 and the skip 140.

In this embodiment, the lifting device 130 may further include a hoist 131 and a wire rope 132, and the hoist 131 tightens and loosens the wire rope 132 to lift and lower the skip 140. The transportation modes of the mining trucks, electric locomotives, skips 140 and other strip mines in the traditional technology have been implemented in engineering practice for many years, and the transportation modes of the mining trucks, electric locomotives, skips 140 and other transportation modes have the problems of high energy consumption, high carbon emission, high cost, intensive labor, complex transportation scheduling, poor production continuity and the like, while the adhesive tape transportation mode is limited by the problems of small transportation elevation angle, inapplicability to deep open mines and the like, and the technological process is urgently innovated. However, the bridge crane type ore transportation system provided by the embodiment of the application can effectively and reasonably solve the problems, the bridge crane type ore transportation system adopts electric energy to transport, so that the problem of high energy consumption of diesel oil and oil-electricity hybrid power systems is greatly reduced, the useful work of the transportation system on ores or rocks is fundamentally improved, a large amount of energy is not dissipated in the transportation process, and the idea and method for more energy conservation and environmental protection are provided for open pit mining. The multi-strand steel rope 132 and the winch 131 lifting system of the lifting device 130 are utilized, so that the skip 140 can directly lift ores from the mining level to the pit level of the strip mine, and then the ores in the skip 140 are transported to the pit bin of the strip mine by dragging the skip through the dragging device 150 and running on the track 120, and finally, concentrated transportation of the ores is realized.

In some examples, the traction device 150 may be a winch.

As shown in fig. 4, in one possible embodiment, the bridged suspension ore transport system further comprises: the ore bin assembly 210, the ore bin assembly 210 being disposed on a peripheral side of the ore mining area.

In this aspect, the bridge-hung ore transportation system may further include an ore bin assembly 210, and the ore transported may be stored and transported conveniently by the arrangement of the ore bin assembly 210.

In one possible embodiment, the cartridge assembly 210 includes: the ore bucket 211, the ore drawing gate 212 and the strip mine external ore transfer tool 213, the ore bucket 211 is arranged on the strip mine external ore transfer tool 213, and the ore drawing gate 212 is arranged on the ore bucket.

In this embodiment, the ore bin assembly 210 may include a hopper 211, a draw gate 212, and an external ore transfer tool 213 for the strip mine, such that ore transported via the skip 140 may be received by the hopper and further transferred by the external ore transfer tool 213 for the strip mine.

In one possible embodiment, the ore bin assembly 210 includes an ore yard disposed on a peripheral side of the ore mining area and an external ore transfer tool for the strip mine.

In this aspect, the ore bin assembly 210 may also include an ore yard on the perimeter of the ore mining area and external ore transfer tools for strip mines, which may be in the form of rail electric locomotives and mine cars, adhesive tape, truck traffic, and cableways.

As shown in fig. 9, a second aspect according to an embodiment of the present application proposes an ore transportation method for a bridge-hung ore transportation system according to any one of the above-mentioned aspects, the ore transportation method comprising:

step 101: determining bridge set-up locations and quantities based on design parameters of the ore mining area and the geological survey data;

step 102: setting a bridge body on an ore mining area, and setting a horizontal carrying assembly and a lifting device on the bridge body;

step 103: the ore to be transported is filled in the skip, and the horizontal carrying assembly and the lifting device are controlled by the command control assembly to transport the skip.

The ore transportation method provided by the embodiment of the application is applied to the bridge-hung ore transportation system according to any one of the above technical schemes, so that the ore transportation method has all the beneficial effects of the bridge-hung ore transportation system according to the above technical scheme.

Through the ore transportation method provided by the embodiment of the application, the setting position of the bridge body is determined based on the design parameters and geological survey data of the ore mining area, so that the setting of the bridge body setting position and the ore mining area are in association, and the setting of the bridge crane type ore transportation system is firmer.

Through the ore transportation method that this application embodiment provided, the bridge is arranged in the top of ore mining area, like the bridge can be arranged in the top of the open pit of surface mine, then load the ore in the skip, can hoist skip and ore through hoisting accessory, transport ore and skip perpendicularly, then can drive the ore in skip or the skip through horizontal carrier assembly and remove, realize the horizontal transport of ore, can transport the week side in ore mining area with ore and skip based on this, accomplish the transportation of ore. Through the bridge crane formula ore transportation system that this application embodiment provided, through setting up the bridge body and orbital mode realization ore promote perpendicularly and horizontal transport work. Compared with the traditional mining truck transportation mode, the transportation mode has the advantages that: electricity can be used as energy, carbon emission is reduced, and the energy utilization rate of ore transportation is improved; road dust pollution generated in the truck transportation process is avoided, and the energy is saved and the environment is protected; the dynamic load of the mining truck on the slope road is reduced, and the slope stability is facilitated; the arrangement width of the transportation road is reduced, the slope angle of the transportation side is reduced, the rock stripping amount is reduced, and the economic benefit is very great especially for deep open-pit mines; the number of transportation personnel in the pit can be greatly reduced, the intelligent construction of the mine is facilitated, the production efficiency is improved, and the personnel accident probability is essentially reduced. Compared with a belt type conveying system, the rock stripping amount is reduced, the cost is reduced, and the flexibility in the conveying process is improved. In the aspect of track and bridge construction, open pit is not formed in the initial stage of open pit construction, and bridge construction is equivalent to construction on flat ground or at a place which is slightly higher than flat ground, so that the difficulty is greatly reduced and the cost is greatly reduced compared with bridge construction in a deep mountain canyon.

In one possible embodiment, the step of providing a bridge over the ore mining area and providing a horizontal carrier assembly and lifting device over the bridge further comprises: under different working conditions, transferring the skip through the horizontal carrying assembly and the lifting device to acquire transportation stability information; under the condition that the transportation stability information does not meet the design requirement, increasing the number of the horizontal carrying components and/or the number of steel ropes of the lifting device and/or increasing support steel beams connected to the bridge body and/or reducing the skip load; wherein, different operating modes include: the weight of the skip, the deflection of the skip, the swing amplitude of the skip, the transportation path of the skip, the blasting vibration working condition and the pneumatic working condition.

In this technical scheme, after accomplishing the arrangement of the bridge, track, hoisting accessory and draw gear, still can carry out stability and reliability inspection, transport the skip through under different operating modes to measure and record transportation stability information, if transportation stability information satisfies the design requirement, it is reasonable to indicate that current bridge-hung ore transportation system arranges, if stability information does not satisfy the design requirement, can improve the stability that the skip carried through increasing the setting quantity of track and/or hoisting accessory's cable wire quantity and/or increase the support girder steel of connecting in the bridge and/or reduce the skip load.

In some examples, the design requirements may include a set swing amplitude during transport of the skips, if the skip swing amplitude in the transport stability information is greater than the set swing amplitude, then the transport stability information may be deemed to not meet the design requirements.

In some examples, the design requirements may include a set swing amplitude of the crane during skip shipment, if the crane swing amplitude in the transport stability information is greater than the set swing amplitude, then the transport stability information may be deemed to not meet the design requirements.

In this technical scheme, different operating modes include: the weight of the skip, the deflection of the skip, the swing amplitude of the skip, the transportation path of the skip, the blasting vibration working condition and the pneumatic working condition, namely, the weight of different skips, the deflection of different skips, the swing amplitude of different skips, the transportation path of different skips, the blasting vibration working condition of different blasting and the pneumatic working condition of different carrying skips can be identified from the carrying state of the skip in multiple dimensions based on the detection, and the reliability of stability and reliability inspection can be improved.

In one possible embodiment, the design parameters of the ore mining area include: at least one of a size of a design boundary of the open pit, a annual open pit production traffic volume, a slope angle, and a mine geology.

In the technical scheme, a pattern of design parameters of the ore mining area is further provided, the design parameters of the ore mining area include at least one of a pit design boundary size, a pit year production traffic volume, a slope angle and mine geology, based on which the arrangement of the bridge-hung ore transportation system is related to the pit design boundary size, the pit year production traffic volume, the slope angle and the mine geology, and the stability of the pit design boundary size, the pit year production traffic volume, the slope angle and the mine geology can be improved.

In one possible embodiment, the ore transfer method further comprises: support steel beams connected to the bridge body are added.

In the technical scheme, along with the exploitation of ores, in the aspect of slope reinforcement, along with the increase of the depth of exploitation, the support steel beam fixed on the final side slope is gradually increased below the bridge body, so that the normal force of the side slope structural surface is increased, the anti-slip force of the side slope structural surface is also increased, the external force reinforcement of the side slope is realized by supporting the bridge body and pile foundation engineering of the bridge in the side slope, and the side slope rock mass is in fact a novel pre-reinforcement mode without increasing much cost.

In one possible embodiment, the bridge and track are disassembled for recycling in the event that ore in the ore mining area is completed.

In this technical scheme, after the mining of ore is accomplished in the mining area, can disassemble the bridge body and the track, the bridge body and the track after the disassembling can retrieve and multiplexing, so the setting can further reduce the cost of ore transportation.

Example 1

In consideration of the problems that in the existing open pit mining transportation system, transportation modes such as mining trucks, electric locomotives and skips have high energy consumption, high carbon emission, high cost, intensive labor, complex transportation scheduling, poor production continuity and the like, and the belt transportation mode is limited by the problems of small transportation elevation angle, inapplicability to deep open pit mines and the like. Therefore, in order to solve the above problems, the present invention provides an ore transporting method which reduces the cost of ore transportation, reduces energy consumption, reduces carbon emissions and dust emissions during transportation, and can efficiently accomplish the ore transportation work.

The ore transportation method provided by the embodiment of the application can comprise the following steps:

firstly, determining the position of a bridge body above an excavated strip mine, ensuring proper position and good stability of the bridge according to the final boundary of the strip mine design and geological survey data, and then selecting a proper bridge body for constructing the bridge body. When the bridge type is selected, an arch bridge type, a suspension bridge type and the like can be selected according to geological conditions. And the construction is strictly carried out according to the standard setting in the construction process, so that the construction safety and the standard construction process are ensured. After the bridge is built, a traction device and a track are paved on the bridge, so that a skip below the lifting device can transversely move under the bridge body under the control of an electric signal. The traction device is provided with a lifting device, and the lifting device can be used for lowering the ore skip to a designated ore loading point along with system control. Or after the bridge body is built, the temporary ore bin and the rubber belt conveyor are arranged at fixed positions on the bridge, the lifting device is arranged on the traction device, so that the lifting device can lift the ore skip below the bridge body to lift, then the traction device lifts the skip to the temporary ore bin for unloading, and the ore is horizontally transported to the pit mouth ore bin of the strip mine through the rubber belt conveyor. In this solution, the hoisting device lifts the skip vertically only and does not move horizontally. After the skip is lifted by the lifting device to exceed the bridge body by a certain height, unloading the skip to a temporary ore bin on the bridge body, and uniformly discharging the ore to a rubber belt conveyor by the temporary ore bin on the bridge body, namely, horizontally conveying the ore by the temporary ore bin and the rubber belt conveyor on the bridge body, so that the ore is transported to a pit mouth ore bin of the strip mine.

And then, after the bridge crane type ore transportation system is installed, the starting system performs reliability verification. After the traction device is completely installed, the traction device moves to any position of the track bridge, and whether the bridge body and the traction device normally operate or not in a full-load state or not is checked, and whether ore loading at a designated ore loading point and ore unloading at a designated ore unloading point or not can be achieved. In the transportation process, the running stability of the traction device and the lifting device, the deformation and stress conditions of the track and the bridge body are monitored, and the extreme conditions such as blasting vibration, pneumatic influence and the like are subjected to various reliability inspection and evaluation, so that the normal transportation work can be put into after the reliability is verified.

Then, the transportation work. In the ore transportation process, the dispatching system is used for unified command. According to the dispatching system instruction, the traction device can be operated to any position below the strip mine track bridge for loading, then the steel cable lifts the skip, and the skip is transported to the strip mine pithead bin. As the production level is continuously reduced, the hoisting device only needs to increase the length of the hoisting steel rope, and the system transformation is not needed on a large scale. In addition, along with the increase of the mining depth, the support of the bridge body can be installed on the final slope or the horizontal step of the strip mine, so that the local reinforcement of the strip slope can be realized, the bearing capacity of the track bridge can be improved, the ore lifting quantity of the skip can be improved to a certain extent, and the expansion of the ore lifting quantity can be realized along with the increase of the mining depth.

Finally, when the open pit mining is finished and the pit is closed, the bridge body and the bridge body can be removed and recovered.

In the present invention, the terms "first," "second," "third," and the like are used for descriptive purposes only and are not to be construed as indicating or implying relative importance; the term "plurality" means two or more, unless expressly defined otherwise. The terms "mounted," "connected," "secured," and the like are to be construed broadly, and may be, for example, fixedly connected, detachably connected, or integrally connected; "coupled" may be directly coupled or indirectly coupled through intermediaries. The specific meaning of the above terms in the present invention can be understood by those of ordinary skill in the art according to the specific circumstances.

In the description of the present invention, it should be understood that the directions or positional relationships indicated by the terms "upper", "lower", "left", "right", "front", "rear", etc. are based on the directions or positional relationships shown in the drawings, are merely for convenience of describing the present invention and simplifying the description, and do not indicate or imply that the devices or units referred to must have a specific direction, be constructed and operated in a specific direction, and thus should not be construed as limiting the present invention.

In the description of the present specification, the terms "one embodiment," "some embodiments," "particular embodiments," and the like, mean that a particular feature, structure, material, or characteristic described in connection with the embodiment or example is included in at least one embodiment or example of the present invention. In this specification, schematic representations of the above terms do not necessarily refer to the same embodiment or example. Furthermore, the particular features, structures, materials, or characteristics described may be combined in any suitable manner in any one or more embodiments or examples.

The above is only a preferred embodiment of the present invention, and is not intended to limit the present invention, but various modifications and variations can be made to the present invention by those skilled in the art. Any modification, equivalent replacement, improvement, etc. made within the spirit and principle of the present invention should be included in the protection scope of the present invention.

Claims (10)

1. A bridge-hung ore transport system, comprising:

a bridge disposed above or within the ore mining area;

a horizontal carrier assembly disposed on the bridge;

The lifting device is connected to the horizontal carrying assembly;

and the hoisting device is connected with the skip.

2. The overhead mineral ore transport system of claim 1, wherein the horizontal carrier assembly comprises:

the rail is arranged along the length direction of the bridge body, and the lifting device is connected to the rail in a sliding manner;

and the traction device is connected with the lifting device and is used for driving the lifting device to move on the track.

3. The overhead mineral ore transport system of claim 1, wherein the horizontal carrier assembly comprises:

the temporary ore bin is arranged on the bridge body;

the rubber belt conveyor is arranged on the bridge body and is communicated to the temporary ore bin.

4. The bridged suspension ore transport system of claim 1, further comprising:

the bridge pile foundation is arranged on the periphery of the ore mining area, and the bridge body is connected with the bridge pile foundation;

a support steel girder foundation disposed within the ore mining area;

The support steel beam is connected with the support steel beam foundation and the bridge body;

wherein the supporting steel beam is obliquely supported on the strip mine slope; or (b)

The supporting steel beam is obliquely and vertically supported on the horizontal steps of the strip mine; or (b)

The support steel beam is of a truss structure; or (b)

The support steel girder is fixedly connected to the bridge body and is a telescopic support steel girder; or (b)

The support steel beam is detachably connected to the bridge body through an auxiliary fixing piece.

5. The bridged suspension ore transport system of claim 1, further comprising:

a power assembly, the power assembly comprising: the cable and the power supply system are connected with one end of the cable, and the power supply system is connected with the lifting device and the horizontal carrying assembly;

the hoisting device comprises:

a hoist and a wire rope connected to the hoist and the skip;

and the spraying assembly is arranged on the bridge body.

6. The bridged-type ore transport system of claim 5, further comprising:

and the command control assembly is connected with the power supply system, the horizontal carrying assembly and the lifting device and is used for controlling the ore drawing and loading, lifting and transporting and ore unloading and returning of the skip.

7. The bridged ore transport system of any one of claims 1 to 6, further comprising: a mineral bin assembly disposed on a peripheral side of the mineral extraction area;

the ore bin assembly includes: the device comprises a mining bucket, a mining gate and an external ore transfer tool of the strip mine, wherein the mining bucket is arranged on the external ore transfer tool of the strip mine, and the mining gate is arranged on the mining bucket; or (b)

The ore bin assembly comprises an ore yard arranged on the periphery of the ore mining area and an external ore transfer tool of the strip mine;

the strip mine external ore transfer tool includes at least one of a rail electric locomotive and a mine car, an adhesive tape, truck transportation, and a cableway.

8. A method of ore transportation for use in a bridging ore transportation system as claimed in any one of claims 1 to 7, the method comprising:

determining the bridge set-up locations and quantities based on design parameters of the ore mining area and the geological survey data;

providing a bridge over the ore mining area and providing a horizontal carrier assembly and a lifting device over the bridge;

and filling the ore to be transported into the skip, and controlling the horizontal carrying assembly and the lifting device to transport the skip through the command control assembly.

9. The ore transportation method of claim 8, wherein the steps of providing a bridge over the ore mining area and providing a horizontal carrier assembly and lifting device over the bridge further comprise:

under different working conditions, transferring the skip through the horizontal carrying assembly and the lifting device to acquire transportation stability information;

under the condition that the transportation stability information does not meet the design requirement, increasing the number of the horizontal carrying components and/or the number of steel ropes of the lifting device and/or increasing support steel beams connected to the bridge body and/or reducing the skip weight;

wherein, different operating modes include: the weight of the skip, the deflection of the skip, the swing amplitude of the skip, the transportation path of the skip, the blasting vibration working condition and the pneumatic working condition;

design parameters for the ore mining area include: the open pit design boundary size, at least one of open pit annual production traffic volume, slope angle, and mine geology.

10. The ore transportation method of claim 8, further comprising:

adding a support steel beam connected to the bridge body; and/or

In the event that ore in the ore mining area is fully mined, the bridge and the horizontal carrier assembly are disassembled for recycling.

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