Double-dispersing bulk cargo conveying system and gravity flow energy storage system and energy storage method thereof

Abstract

The invention discloses a double-drive bulk cargo conveying system and a gravity flow energy storage system and method thereof, and relates to the technical field of conveying equipment. The double-drive bulk material conveying system comprises a bearing structure, a traction structure, a conveying structure, a driving device, a first steering structure, a second steering structure and a stacking and transporting field. The bearing structure comprises a bearing annular body for bearing the carrier loader; the first steering structure and the second steering structure comprise winding drums and steering wheels; the driving device drives the traction rope of the traction structure and the conveying belt of the conveying structure to synchronously rotate in the first direction, and then the carrier loader of the conveying structure is driven to synchronously move along the bearing structure and the conveying belt. The double-dispersing bulk cargo conveying gravity flow energy storage system comprises a double-dispersing bulk cargo conveying system. The energy storage method is suitable for the double-drive bulk cargo conveying gravity flow energy storage system. The invention provides a double-drive bulk cargo conveying system and a gravity flow energy storage system and method thereof. The technical problems that in the prior art, in the bulk cargo conveying process, the running resistance is too large, and the carrying efficiency is low are solved.

Description

Technical Field

[0001] The present invention relates to the technical field of conveying equipment, and in particular, to a double-dispersion material conveying system, its gravity flow energy storage system, and an energy storage method. Background Art

[0002] In recent years, significant achievements have been made in the development of new energy; however, problems such as large fluctuations in new energy grid connection and poor grid stability have become increasingly prominent. As a means of regulating power supply and demand, new energy storage can effectively solve the above problems of new energy. Among new energy storage, gravity energy storage is more suitable for large-scale power grid energy storage and medium- and long-term energy storage scenarios due to its advantages of long energy storage duration, no attenuation, long lifespan, high safety, and low maintenance cost. Especially in areas rich in wind and light energy resources but with unstable power output, it can effectively regulate power load, achieve energy balance and transfer, and improve the consumption capacity of renewable energy. Gravity energy storage systems mostly have intermittent charging / discharging problems because they rely on the lifting and lowering of a large number of heavy objects to achieve potential energy conversion.

[0003] Therefore, applying the mechanism of bulk material transportation to the field of gravity energy storage, a bulk material conveying gravity energy storage system that realizes continuous charging / discharging has emerged as the times require. However, existing bulk material conveying gravity energy storage systems use belts to tow and convey bulk materials, resulting in excessive depression resistance between the belt and the idler rollers and extrusion resistance when the materials on the belt pass through the idler rollers, causing problems such as excessive running resistance and low carrying efficiency. At the same time, the belt bears a large tensile stress in the traveling direction, is prone to longitudinal tearing, belt breakage and other faults, and is difficult to be engineered under the energy storage efficiency requirements of gravity energy storage. Summary of the Invention

[0004] The purpose of the present invention is to provide a double-dispersion material conveying system, its gravity flow energy storage system, and an energy storage method to solve, to a certain extent, the technical problems of excessive running resistance and low carrying efficiency in the process of conveying bulk materials existing in the prior art.

[0005] To achieve the above purpose, the present invention provides the following technical solutions: A double-dispersion material conveying system includes a bearing structure, a traction structure, a conveying structure, a driving device, a first steering structure, a second steering structure, and a stacking yard for storing bulk materials; The conveying structure includes an annular conveyor belt and a plurality of carrier vehicles; along the extension direction of the conveyor belt, the plurality of carrier vehicles are fixedly connected to the conveyor belt in sequence; The bearing structure includes a bearing annular body that bears all the carrier vehicles; the bearing annular body has an annular structure; The traction structure includes a traction cable that tractions all the carrier vehicles; the traction cable is annular; Both the first steering structure and the second steering structure are steering structures, and each steering structure includes a reel and a steering wheel; the conveyor belt circulates between the reels of the first steering structure and the second steering structure, and the towing cable circulates between the steering wheels of the first steering structure and the second steering structure; The driving device is connected to the first steering structure and / or the second steering structure to be able to drive the towing cable and the conveyor belt to rotate synchronously in a first direction, thereby driving the carrier vehicle to move synchronously with the conveyor belt along the load-carrying ring.

[0006] Optionally, the load-carrying ring includes two load-carrying tracks and two load-carrying cables. The two load-carrying cables are arranged in parallel, and the two load-carrying tracks are respectively connected to the two ends of the two load-carrying cables to form an annular structure with the two load-carrying cables; alternatively, the load-carrying ring includes a load-carrying track in an annular structure; The load-carrying rings are arranged in pairs, and the conveyor belt is located between the load-carrying rings arranged in pairs; The towing cables are arranged in pairs, and the conveyor belt is located between the towing cables arranged in pairs; The carrier vehicle includes a load-carrying beam, traveling wheels and a rope connecting device; the load-carrying beam is fixedly connected to the conveyor belt; At least one pair of the traveling wheels is pivotally connected to both sides of the load-carrying beam, and the traveling wheels are configured to be able to travel on the load-carrying ring; optionally, the number of the traveling wheels is the same as the number of the load-carrying rings; At least one pair of the rope connecting devices is rotatably connected to both sides of the load-carrying beam; the rope connecting device is fixedly connected to the towing cable, and there is an included angle between the rotation axis of the rope connecting device and the extending direction of the towing cable.

[0007] Optionally, the rope connecting device includes a rope connecting body and a gripper; the gripper is fixedly connected to the end of the rope connecting body, and the jaws of the gripper face the center line of the towing cable; the gripper is fixedly connected to the towing cable; a carrier bearing is connected between the rope connecting body and the load-carrying beam. Optionally, the traveling wheels are roller bearings.

[0008] Optionally, when the load-carrying ring includes a load-carrying cable, the traveling wheels have traveling wheel grooves that cooperate with the load-carrying cable; The load-carrying track has a wheel groove that cooperates with the traveling wheel; along the radial direction of the traveling wheel, the load-carrying track has a corresponding groove bottom and groove top, and the groove bottom and the groove top form the wheel groove, and the wheel groove extends along the extending direction of the load-carrying track, and the traveling wheel abuts against the groove bottom and / or the groove top.

[0009] Optionally, the load-bearing rail is a C-shaped steel, a U-shaped steel or an I-shaped steel.

[0010] Optionally, the conveyor belt comprises a belt body and sidewalls arranged on both sides of the belt body; along the extending direction of the conveyor belt, the sidewalls are in a corrugated or folded line shape; The load-bearing beam is fixedly connected inside the belt body, or the load-bearing beam is fixedly connected to a side of the belt body away from the steering structure; The conveyor belt further comprises a plurality of partition parts; along the extending direction of the conveyor belt, the plurality of partition parts are sequentially arranged at intervals between the two sidewall parts; The belt body, the sidewall portion, the partition portion and the carrier are an integrated structure.

[0011] Optionally, the number of the bearing annular bodies is two, and each of the bearing rails is supported and connected by a plurality of rail support frames for fixing on the ground; When the load-bearing annular body includes a load-bearing cable, the load-bearing structure includes a load-bearing cable fixing device and a load-bearing cable supporting device, and the end of each load-bearing cable passes through the load-bearing cable supporting device and is fixedly connected to the load-bearing cable fixing device; the load-bearing cable fixing device is configured to be fixed on the ground by an anchoring method; When the load-bearing ring body includes a load-bearing cable, the load-bearing structure further includes a load-bearing cable guiding device, and the load-bearing cable guiding device is configured to support and guide the load-bearing cable; the matching part between the load-bearing cable and the load-bearing track is located between the connection part between the load-bearing cable and the load-bearing cable guiding device and the connection part between the load-bearing cable and the load-bearing cable fixing device; The number of the traction ropes is two, and accordingly, the first steering structure and the second steering structure each include two steering wheels; the two steering wheels are symmetrically arranged on both sides of the drum; The conveyor belt is located between the two traction ropes, and the two traction ropes are located between the two load-bearing annular bodies; A pair of the traveling wheels and a pair of the rope connection devices are respectively connected to the two sides of the load-bearing beam; the rope connection device includes a claw fixedly connected to the traction rope; the claw is located between the traveling wheel and the cable-beam connection, wherein the cable-beam connection is the connection between the rope connection device and the load-bearing beam.

[0012] Optionally, the traction rope comprises an upward traction rope portion and a downward traction rope portion connected end to end; The upward traction rope portion comprises a lower steering wheel traction section, a lower horizontal traction section, an upper inclined traction section and an upper horizontal traction section which are connected in sequence; The downward traction rope portion comprises an upper steering wheel traction section, an upper redirection traction section, a lower inclined traction section and a lower redirection traction section which are connected in sequence; One end of the lower steering wheel traction section facing away from the lower horizontal traction section is connected to one end of the lower redirection traction section facing away from the lower inclined traction section; The lower steering wheel traction section is wound around the steering wheel of the first steering structure, and the upper steering wheel traction section is wound around the steering wheel of the second steering structure; The lower horizontal traction section is parallel to the upper horizontal traction section, the upper inclined traction section is parallel to the lower inclined traction section, and there is an angle between the lower horizontal traction section and the upper inclined traction section; The upper redirecting traction section is bent toward the direction of the second steering structure, and the lower redirecting traction section is bent toward the direction of the first steering structure; The traction structure also includes a traction guide device for fixing on the ground; the traction guide device is provided at the connection between the lower horizontal traction section and the upper inclined traction section, and at the connection between the upper inclined traction section and the upper horizontal traction section; the traction guide device is provided at the upper redirection traction section and the lower redirection traction section.

[0013] Optionally, the load-bearing annular body comprises an upward load-bearing portion and a downward load-bearing portion connected end to end; The shape of the upward bearing portion corresponds to the shape of the upward traction rope portion, and the upward bearing portion includes a lower steering wheel bearing section, a lower horizontal bearing section, an upper inclined bearing section and an upper horizontal bearing section connected in sequence; The shape of the downward bearing portion corresponds to the shape of the downward traction rope portion, and the downward bearing portion includes an upper steering wheel bearing section, an upper redirection bearing section, a lower inclined bearing section and a lower redirection bearing section connected in sequence; One end of the lower steering wheel bearing section facing away from the lower horizontal bearing section is connected to one end of the lower redirecting bearing section facing away from the lower inclined bearing section; The position of the lower steering wheel bearing section corresponds to the lower steering wheel traction section, the position of the lower horizontal bearing section corresponds to the lower horizontal traction section, the position of the upper inclined bearing section corresponds to the upper inclined traction section, the position of the upper horizontal bearing section corresponds to the upper horizontal traction section, and the position of the upper steering wheel bearing section corresponds to the upper steering wheel bearing section; the position of the upper redirection bearing section corresponds to the upper redirection traction section, the position of the lower inclined bearing section corresponds to the lower inclined traction section, and the position of the lower redirection bearing section corresponds to the lower redirection traction section; When the load-bearing annular body includes two load-bearing tracks and two load-bearing cables, the load-bearing tracks include the lower turning wheel load-bearing section, at least part of the lower horizontal load-bearing section, at least part of the upper horizontal load-bearing section, the upper turning wheel load-bearing section, the upper redirecting load-bearing section, and the lower redirecting load-bearing section; the load-bearing cables include the upper inclined load-bearing section and the lower inclined load-bearing section; When the load-bearing annular body includes a load-bearing track in a ring structure, the load-bearing track includes a lower turning wheel load-bearing section, a lower horizontal load-bearing section, an upper inclined load-bearing section, an upper horizontal load-bearing section, an upper turning wheel load-bearing section, an upper redirecting load-bearing section, a lower inclined load-bearing section, and a lower redirecting load-bearing section. The load-bearing structure further includes a plurality of track support frames for fixing to the ground, and at least part of the track support frames simultaneously support and connect the upper inclined load-bearing section and the lower inclined load-bearing section.

[0014] Optionally, the driving device is connected to the drum and the steering wheel of the same steering structure; The steering structure further includes a coupling; in the same steering structure, the drum and the steering wheel are coaxially arranged and are both connected to the coupling; The towing cable is connected with a tensioning device; the tensioning device includes one or more of a weight type structure, a hydraulic type structure, and a lead screw type structure; The double-dispersion material conveying system further includes a transfer device; the first steering structure is located at a low altitude position, and the second steering structure is located at a high altitude position opposite to the low altitude position; the transfer device and the stacking yard are both arranged at the low altitude position and the high altitude position; the transfer device is configured to reciprocally transport the bulk material between the conveyor belt and the stacking yard.

[0015] A double-dispersion material conveying gravity flow energy storage system includes the above-mentioned double-dispersion material conveying system and further includes a power generation device; The first steering structure is located at a low altitude position, and the second steering structure is located at a high altitude position opposite to the low altitude position; When the conveyor belt rotates in the first direction, it can drive the loaded bulk material to be successively conveyed to the high altitude position, thereby converting electrical energy into gravitational potential energy for storage; The power generation device is connected to the first steering structure and / or the second steering structure; under the action of gravity, the conveyor belt loaded with bulk material drives the conveyor belt and the carrier vehicle to move in the second direction and successively convey the bulk material to the low altitude position to form a continuous gravity flow, and at the same time drives the first steering structure and the second steering structure to rotate in the second direction to drive the power generation device to generate electricity, so as to convert the continuous gravity flow into a continuous energy flow, thereby realizing continuous power discharge; wherein, the first direction is opposite to the second direction.

[0016] Optionally, the steering structure further includes a coupling; in the same steering structure, the drum and the steering wheel are coaxially arranged and both are connected to the coupling; The driving device is connected to the coupling; The power generation device is connected to the coupling; The driving device and the power generation device are an electric generator, or the driving device and the power generation device are independent of each other.

[0017] An energy storage method is applicable to the double-dispersion material conveying gravity flow energy storage system described above; this method includes: During energy storage charging, the bulk material is at a low altitude. The driving device is driven by electric energy to drive the first steering structure and the second steering structure to rotate in the first direction, so as to drive the traction cable and the conveyor belt to run in the first direction, and then drive all the carrier vehicles to walk along the load-bearing ring body, and at the same time drive the conveyor belt to walk synchronously; let the bulk material be successively loaded on the conveyor belt and successively conveyed to a high altitude along the load-bearing ring body and unloaded, so as to convert electric energy into gravitational potential energy for storage; During discharging, the bulk material is at a high altitude. The bulk material is successively loaded on the conveyor belt and under the action of gravity, drives the conveyor belt and the carrier vehicle to move in the second direction and successively convey the bulk material to the low altitude to form a continuous gravity flow, and at the same time drives the first steering structure and the second steering structure to rotate in the second direction, so as to drive the power generation device to generate electricity continuously, so as to convert the continuous gravity flow into a continuous energy flow, thereby converting gravitational potential energy into continuous electric energy.

[0018] Optionally, the traveling speed and the transportation volume of the bulk material are adjusted in real time according to requirements to change the magnitude of the gravity flow, so as to adjust the energy flow as needed, and further realize the functions of "slow charging and fast discharging" or "charging and discharging as needed"; The number of the double-dispersion material conveying gravity flow energy storage systems is multiple; multiple double-dispersion material conveying gravity flow energy storage systems are installed side by side in the horizontal direction according to the terrain, and / or multiple double-dispersion material conveying gravity flow energy storage systems are stacked in the up-down direction according to the terrain.

[0019] The beneficial effects of the present invention mainly lie in: The dual-drive bulk material conveying system, its gravity flow energy storage system and energy storage method provided by the present invention adopt a drum to drive a conveyor belt and a steering wheel to drive a traction cable, and jointly transport the bulk materials loaded on the conveyor belt in a dual-drive manner, which can reduce the running resistance to a certain extent, effectively improve the carrying capacity of the conveyor belt, and also reduce the requirements for the performance of the conveyor belt to a certain extent, and can effectively reduce the occurrence probability of faults such as longitudinal tearing and belt breakage of the conveyor belt. By using a load-bearing structure to bear all the carrier vehicles, and then using the carrier vehicles to bear the bulk materials loaded on the conveyor belt, the additional tension generated by the conveyor belt due to overcoming factors such as the weight of the bulk materials is effectively reduced or avoided, and the stability and carrying capacity of the dual-drive bulk material conveying system are greatly improved.

[0020] To make the above objects, features and advantages of the present application more obvious and understandable, the following specifically enumerates preferred embodiments and, in conjunction with the accompanying drawings, makes a detailed description as follows. BRIEF DESCRIPTION OF THE DRAWINGS

[0021] To more clearly illustrate the technical solutions of the embodiments of the present invention, the following will briefly introduce the drawings required to be used in the embodiments. It should be understood that the following drawings only show some embodiments of the present invention, and therefore should not be regarded as limiting the scope. For those of ordinary skill in the art, other related drawings can also be obtained based on these drawings without creative efforts.

[0022] Figure 1 The first structural schematic diagram of the dual-drive bulk material conveying system provided by the embodiment of the present invention; Figure 2 and Figure 3 is Figure 1 The partial enlarged view of the dual-drive bulk material conveying system shown; Figure 4 is Figure 1 The enlarged view of area A of the dual-drive bulk material conveying system shown; Figure 5 is Figure 1 The enlarged view of area B of the dual-drive bulk material conveying system shown; Figure 6 is Figure 1 The structural schematic diagram of the drum, steering wheel, drive device and power generation device shown; Figure 7 is Figure 1 The structural schematic diagram of the carrier vehicle shown; Figure 8 is Figure 7 The partial enlarged view of the carrier vehicle shown; Figure 9 The structural schematic diagram of the rope connection device provided by the embodiment of the present invention; Figure 10 The second structural schematic diagram of the dual-drive bulk material conveying system provided by the embodiment of the present invention; Figure 11 and Figure 12 is Figure 10 a partially enlarged view of the double-dispelling material conveying system shown; Figure 13 is Figure 10 an enlarged view of area C of the double-dispelling material conveying system shown.

[0023] Icon: 100 - bearing structure; 110 - bearing track; 111 - lower turning wheel bearing section; 112 - lower horizontal bearing section; 113 - upper inclined bearing section; 114 - upper horizontal bearing section; 115 - upper turning wheel bearing section; 116 - upper redirecting bearing section; 117 - lower inclined bearing section; 118 - lower redirecting bearing section; 120 - bearing cable; 130 - track support frame; 140 - bearing cable fixing device; 150 - bearing cable support device; 200 - traction structure; 210 - traction cable; 211 - lower turning wheel traction section; 212 - lower horizontal traction section; 213 - upper inclined traction section; 214 - upper horizontal traction section; 215 - upper turning wheel traction section; 216 - upper redirecting traction section; 217 - lower inclined traction section; 218 - lower redirecting traction section; 220 - traction guiding device; 300 - conveying structure; 310 - conveyor belt; 311 - belt body; 312 - side rib part; 313 - partition part; 320 - carrier vehicle; 321 - bearing beam; 322 - running wheel; 323 - rope connecting device; 3231 - rope connecting body; 3232 - clamping claw; 3233 - jaw; 3234 - carrier bearing; 400 - driving device; 500 - power generation device; 600 - first steering structure; 610 - reel; 620 - steering wheel; 700 - second steering structure. Specific embodiments

[0024] To make the objectives, technical solutions, and advantages of the embodiments of the present invention clearer, the technical solutions in the embodiments of the present invention will be clearly and completely described below with reference to the accompanying drawings in the embodiments of the present invention. Obviously, the described embodiments are some, but not all, of the embodiments of the present invention. Usually, the components of the embodiments of the present invention described and illustrated herein can be arranged and designed in various different configurations.

[0025] Therefore, the following detailed description of the embodiments of the present invention provided in the drawings is not intended to limit the scope of the claimed present invention, but merely represents selected embodiments of the present invention. All other embodiments obtained by those of ordinary skill in the art based on the embodiments of the present invention without creative efforts fall within the scope of protection of the present invention.

[0026] It should be noted that like reference numerals and letters denote like items in the following figures, and thus, once an item is defined in one figure, it need not be further defined and explained in subsequent figures.

[0027] In the description of the present invention, it should be noted that the orientation or positional relationship indicated by the terms "center", "upper", "lower", "left", "right", "vertical", "horizontal", "inner", "outer", etc. is based on the orientation or positional relationship shown in the drawings, or the orientation or positional relationship in which the product of the invention is habitually placed during use. It is only for the convenience of describing the present invention and simplifying the description, rather than indicating or implying that the device or element referred to must have a specific orientation, be constructed and operated in a specific orientation, and thus should not be construed as a limitation of the present invention. In addition, the terms "first", "second", "third", etc. are only used for descriptive distinction and should not be construed as indicating or implying relative importance.

[0028] In addition, the terms "horizontal", "vertical", "overhanging", etc. do not mean that the components are required to be absolutely horizontal or overhanging, but may be slightly inclined. For example, "horizontal" only means that its direction is more horizontal relative to "vertical", and does not mean that the structure must be completely horizontal, but may be slightly inclined.

[0029] In the description of the present invention, it should also be noted that unless otherwise clearly specified and defined, the terms "arranged", "installed", "connected", "coupled" should be understood in a broad sense. For example, it may be a fixed connection, a detachable connection, or an integral connection; it may be a mechanical connection or an electrical connection; it may be directly connected or indirectly connected through an intermediate medium, and it may be the communication inside two elements. For those of ordinary skill in the art, the specific meanings of the above terms in the present invention can be understood according to specific circumstances.

[0030] The following will describe in detail some embodiments of the present invention with reference to the drawings. Without conflict, the following embodiments and the features in the embodiments can be combined with each other.

[0031] Embodiment This embodiment provides a double-dispersion material conveying system, its gravity flow energy storage system and energy storage method, which can be used to store electric energy, especially the electric energy generated by power generation technologies such as wind power and photovoltaic power, and can also be used to generate continuous discharge.

[0032] See Figures 1 - 13 As shown, the double-dispersion material conveying system includes a bearing structure 100, a traction structure 200, a conveying structure 300, a driving device 400, a first steering structure 600 and a second steering structure 700.

[0033] The conveying structure 300 includes an annular conveyor belt 310 and a plurality of carrier vehicles 320; along the extending direction of the conveyor belt 310, the plurality of carrier vehicles 320 are fixedly connected to the conveyor belt 310 in sequence; optionally, along the extending direction of the conveyor belt 310, the plurality of carrier vehicles 320 are evenly connected to the conveyor belt 310.

[0034] The bearing structure 100 includes a bearing annular body for bearing all the carrier vehicles 320; the bearing annular body has an annular structure; the bearing annular body is configured to bear all the carrier vehicles 320, and all the carrier vehicles 320 can move cyclically along the bearing annular body. As Figures 1 - 5 shown, optionally, the bearing annular body includes two bearing tracks 110 and two bearing cables 120; the two bearing cables 120 are arranged in parallel, and the two bearing tracks 110 are respectively connected to both ends of the two bearing cables 120, so that the two bearing tracks 110 and the two bearing cables 120 form an annular structure; that is, the bearing annular body is an annular structure formed by connecting the bearing track 110, the bearing cable 120, the bearing track 110 and the bearing cable 120 end to end. As Figures 10 - 13 shown, optionally, the bearing annular body includes a bearing track 110 having an annular structure.

[0035] The traction structure 200 includes a traction cable 210 for traction all the carrier vehicles 320; the traction cable 210 is annular. Among them, the shape of the bearing annular body corresponds to the shape of the traction cable 210.

[0036] Both the first steering structure 600 and the second steering structure 700 are steering structures, and the steering structure includes a drum 610 and a steering wheel 620; the conveyor belt 310 circulates between the drums 610 of the first steering structure 600 and the second steering structure 700, and the traction cable 210 circulates between the steering wheels 620 of the first steering structure 600 and the second steering structure 700. The double-dispersion material conveying system can be used on slopes or on flat surfaces; for example, the first steering structure 600 is located at a low altitude, and the second steering structure 700 is located at a high altitude opposite to the low altitude.

[0037] The driving device 400 is connected to the first steering structure 600 and / or the second steering structure 700 to be able to drive the traction cable 210 and the conveyor belt 310 to rotate synchronously in the first direction, that is, to be able to drive the first steering structure 600 and the second steering structure 700 to rotate around the first direction, thereby driving the carrier vehicles 320 to move along the bearing annular body, and at the same time the carrier vehicles 320 move synchronously with the conveyor belt 310. Among them, the driving device 400 is connected to the first steering structure 600 and / or the second steering structure 700, specifically, the driving device 400 is connected to the first steering structure 600, or the driving device 400 is connected to the second steering structure 700, or the driving device 400 is connected to the first steering structure 600 and the second steering structure 700.

[0038] In an alternative solution of this embodiment, the double-dispelling and conveying system further includes a transfer device and a stacking yard for storing bulk materials; transfer devices and stacking yards are provided at both the low altitude position and the high altitude position; the transfer device is configured to reciprocally transport bulk materials between the conveyor belt 310 and the stacking yard to achieve charging energy storage and discharging.

[0039] Optionally, both the first steering structure 600 and the second steering structure 700 are connected to the bracket.

[0040] See Figures 1 - 3 、 Figures 10 - 12 As shown, in an alternative solution of this embodiment, the axes of both the first steering structure 600 and the second steering structure 700 are parallel to the horizontal direction; it is equivalent to placing the first steering structure 600 and the second steering structure 700 vertically. Compared with horizontal placement, it requires less ground space, has simpler terrain requirements, and is convenient for installation in more slope sections. At the same time, the smaller installation space is convenient for installing multiple systems simultaneously, which can improve the system's transportation capacity and increase the high-power storage / discharge of electric energy.

[0041] Optionally, the steering wheels 620 of both the first steering structure 600 and the second steering structure 700 are provided with traction wheel grooves that cooperate with the traction cable 210. Through the traction wheel grooves, the friction between the traction cable 210 and the first steering structure 600 and the second steering structure 700 can be increased, and the traction cable 210 can also be prevented from detaching from the steering wheels 620 of the first steering structure 600 and the second steering structure 700.

[0042] In the double-dispelling and conveying system described in this embodiment, the drum 610 is used to drive the conveyor belt 310 and the steering wheel 620 is used to drive the traction cable 210 to jointly transport the bulk materials loaded on the conveyor belt 310 in a double-drive manner. This can reduce the running resistance to a certain extent, effectively improve the carrying capacity of the conveyor belt 310, and also reduce the requirements for the performance of the conveyor belt 310 to a certain extent, and can effectively reduce the occurrence probability of faults such as longitudinal tearing and belt breakage of the conveyor belt 310. All the carrier vehicles 320 are carried by the bearing structure 100, and then the bulk materials loaded on the conveyor belt 310 are carried by the carrier vehicles 320, effectively reducing or avoiding the additional tension generated by the conveyor belt 310 due to factors such as overcoming the weight of the bulk materials, and greatly improving the stability and carrying capacity of the double-dispelling and conveying system.

[0043] In the double-dispelling and conveying system described in this embodiment, since the traction cable 210 undertakes part of the traction force, the conveyor belt 310 only bears part of the tensile stress along the running direction. This can reduce the requirements for the conveyor belt 310 to bear the traction force to a certain extent, and a more economical conveyor belt 310 can be used, and the service life of the conveyor belt 310 can also be greatly improved.

[0044] See Figures 1 - 3 、 Figures 10 - 12 As shown, in an alternative solution of this embodiment, the load-bearing annular bodies are arranged in pairs, and the conveyor belt 310 is located between the load-bearing annular bodies arranged in pairs; that is, the annular structures formed by the two load-bearing tracks 110 and the two load-bearing cables 120 are arranged in pairs. By arranging the load-bearing annular bodies in pairs, the carrier vehicle 320 can be better supported, so as to improve the stability of the carrier vehicle 320 during operation to a certain extent, and further improve the stability of the conveying structure 300 during operation.

[0045] Optionally, the towing cables 210 are arranged in pairs, and the conveyor belt 310 is located between the towing cables 210 arranged in pairs; by arranging the towing cables 210 in pairs, the carrier vehicle 320 can be better towed, so as to improve the stability of the carrier vehicle 320 during operation and the traction force on the carrier vehicle 320 to a certain extent, and further improve the stability of the conveying structure 300 during operation and the traction force on the carrier vehicle 320.

[0046] See Figures 7 - 9 As shown, in an alternative solution of this embodiment, the carrier vehicle 320 includes a load-bearing beam 321, traveling wheels 322 and a rope connecting device 323; the load-bearing beam 321 is fixedly connected to the conveyor belt 310; optionally, the load-bearing beam 321 is fixedly connected inside the conveyor belt 310, or the load-bearing beam 321 is fixedly connected to the side of the conveyor belt 310 away from the steering structure, for example, the load-bearing beam 321 is fixedly connected above the conveyor belt 310.

[0047] Optionally, at least one pair of traveling wheels 322 are pivotally connected to both sides of the load-bearing beam 321, and the traveling wheels 322 are configured to be able to travel on the load-bearing annular bodies; optionally, the number of the traveling wheels 322 is the same as the number of the load-bearing annular bodies. By arranging the traveling wheels 322 and the load-bearing annular bodies in pairs, the carrier vehicle 320 can be better supported, so as to improve the stability of the carrier vehicle 320 during operation to a certain extent, and further improve the stability of the conveying structure 300 during operation. Among them, the traveling wheels 322 travel on the load-bearing annular bodies, that is, the traveling wheels 322 travel on the load-bearing tracks 110 and the load-bearing cables 120.

[0048] Optionally, at least a pair of rope connecting devices 323 are rotatably connected to both sides of the carrying beam 321; the rope connecting devices 323 are fixedly connected to the towing cable 210, and there is an included angle between the rotation axis of the rope connecting device 323 and the extending direction of the towing cable 210. Optionally, the rotation axis of the rope connecting device 323 is perpendicular to the extending direction of the towing cable 210. By rotatably connecting the rope connecting device 323 to the carrying beam 321, it is convenient for the carrier vehicle 320 to travel along the annular towing cable 210. By using the paired rope connecting devices 323 to connect the carrying beam 321, the stability of the carrier vehicle 320 during travel is improved. In this embodiment, the number of pairs of the rope connecting devices 323 can be selected according to factors such as the material and connection strength of the rope connecting devices 323.

[0049] In this embodiment, the rope connecting device 323 can be in various forms, such as a claw type, a buckle, etc. Refer to Figure 9 As shown, in an alternative solution of this embodiment, the rope connecting device 323 includes a rope connecting body 3231 and a claw 3232; the claw 3232 is fixedly connected to the end of the rope connecting body 3231, and the jaws 3233 of the claw 3232 face the center line of the towing cable 210, which is convenient for the claw 3232 to move along with the towing cable 210. When the carrier vehicle 320 rotates to the first steering structure 600 or the second steering structure 700, the rotation interference of the rope connecting device 323 at the steering wheel 620 of the first steering structure 600 or the steering wheel 620 of the second steering structure 700 is reduced, so that the rope connecting device 323 can smoothly pass through the steering wheel 620 of the first steering structure 600 or the steering wheel 620 of the second steering structure 700.

[0050] The claw 3232 is fixedly connected to the towing cable 210. A carrier bearing 3234 is connected between the rope connecting body 3231 and the carrying beam 321. Through the carrier bearing 3234, the friction between the rope connecting body 3231 and the carrying beam 321 is reduced, which helps the carrier vehicle 320 to rotate at the first steering structure 600 or the second steering structure 700.

[0051] Optionally, the carrier bearing 3234 is a sliding bearing. The sliding bearing has a high load-bearing capacity, which provides a guarantee for continuously conveying bulk materials in the double-dispersion material conveying system.

[0052] Optionally, the running wheel 322 is a roller bearing; the roller bearing can withstand a large radial load, which is beneficial to carrying the carrier vehicle 320 and further beneficial to carrying the bulk materials on the conveyor belt 310.

[0053] Optionally, when the load-bearing ring body includes a load-bearing cable 120, the running wheel 322 has a running wheel groove that cooperates with the load-bearing cable 120; through the running wheel groove, it helps the running wheel 322 to travel on the load-bearing cable 120.

[0054] Optionally, the bearing rail 110 has a wheel groove that matches the running wheel 322; along the radial direction of the running wheel 322, the bearing rail 110 has a corresponding groove bottom and groove top, the groove bottom and groove top form a wheel groove, the wheel groove extends along the extension direction of the bearing rail 110, and the running wheel 322 abuts against the groove bottom and / or groove top; when the running wheel 322 rolls, the running wheel 322 abuts against the groove bottom and / or groove top. The running wheel 322 rolls in the wheel groove of the bearing rail 110, so that the running wheel 322 can move along the bearing rail 110, that is, the carrier 320 can move along the bearing rail 110.

[0055] Optionally, the bearing rail 110 is a C-shaped steel, a U-shaped steel or an I-shaped steel, or other profiles with a wheel groove structure.

[0056] See also Figures 1 - 13 As shown, in the optional scheme of this embodiment, the conveyor belt 310 includes a belt body 311 and a rib portion 312 arranged on both sides of the belt body 311; along the extension direction of the conveyor belt 310, the rib portion 312 is corrugated or folded; through the rib portion 312, the conveyor belt 310 can be improved in terms of its carrying capacity and can effectively prevent the bulk material from slipping. The rib portion 312 is corrugated or folded, so that the conveyor belt 310 can be turned on the steering structure, for example, the conveyor belt 310 can be turned on the reel 610 of the first steering structure 600 and the reel 610 of the second steering structure 700.

[0057] Optionally, the load-bearing beam 321 is fixedly connected inside the belt body 311 , or the load-bearing beam 321 is fixedly connected to a side of the belt body 311 away from the steering structure, for example, the load-bearing beam 321 is fixedly connected above the belt body 311 .

[0058] Optionally, the conveyor belt 310 further includes a plurality of baffles 313; along the extending direction of the conveyor belt 310, the plurality of baffles 313 are sequentially arranged between the two sidewalls 312; the sidewalls 312 and the baffles 313 are used to improve the conveying capacity of the conveyor belt 310 and effectively prevent the bulk material from slipping. The height of the sidewalls 312, the spacing between the baffles 313, and the width of the belt body 311 can be customized as needed, and the bulk material drives the carrier 320 and the conveyor belt 310 on the carrier 320 to rise or fall through the traction rope 210.

[0059] Optionally, the belt body 311, the edge portion 312, the partition portion 313, and the carrier vehicle 320 are of an integral structure; for example, the belt body 311, the edge portion 312, the partition portion 313, and the carrier beam 321 are of an integral structure. For example, on the basis of a general standard corrugated edge belt (i.e., the conveyor belt 310), the carrier beam 321 of the carrier vehicle 320 is embedded in its base belt (i.e., the belt body 311) so that the belt body 311 and the carrier vehicle 320 are of an integral structure. Optionally, one side of the belt body 311 is a smooth surface, and the edge portion 312 and the partition portion 313 are connected to the other side; the carrier beam 321 may also be connected to the other side of the belt body 311, or the carrier beam 321 is located inside the belt body 311. By having one side of the belt body 311 as a smooth surface, it is ensured that the conveyor belt 310 passes through the drum 610 without obstacles.

[0060] See Figures 1 - 3 , Figures 10 - 12 As shown, in the alternative solution of this embodiment, the number of load-bearing annular bodies is two, and each load-bearing track 110 is supported and connected by a plurality of track support frames 130; the track support frames 130 are used to be fixed on the ground.

[0061] Optionally, as Figures 1 - 5 shown, when the load-bearing annular body includes the load-bearing cable 120, the load-bearing structure 100 includes a load-bearing cable fixing device 140 and a load-bearing cable support device 150; the end of each load-bearing cable 120 passes through the load-bearing cable support device 150 and is fixedly connected to the load-bearing cable fixing device 140; the load-bearing cable 120 is supported and connected by the load-bearing cable support device 150 so that the load-bearing cable 120 is at an appropriate height, and the end of the load-bearing cable 120 is fixed by the load-bearing cable fixing device 140, for example, fixed on the ground. Optionally, the load-bearing cable support device 150 is used to be fixed on the ground. Optionally, the load-bearing cable fixing device 140 is configured to be fixed on the ground by an anchoring method.

[0062] Optionally, as Figures 1 - 5 shown, when the load-bearing annular body includes the load-bearing cable 120, the load-bearing structure 100 further includes a load-bearing cable guiding device, and the load-bearing cable guiding device is configured to support and guide the load-bearing cable 120; the mating portion of the load-bearing cable 120 and the load-bearing track 110 is located between the connection portion of the load-bearing cable 120 and the load-bearing cable guiding device and the connection portion of the load-bearing cable 120 and the load-bearing cable fixing device 140; that is, the load-bearing cable guiding device, the end of the load-bearing track 110, the load-bearing cable support device 150, and the load-bearing cable fixing device 140 are arranged in sequence along the extension direction of the load-bearing cable 120. By means of the load-bearing cable guiding device, the direction of the load-bearing cable 120 can be changed, which is beneficial to the connection between the load-bearing cable 120 and the load-bearing track 110.

[0063] Optionally, the number of the towing cables 210 is two. Correspondingly, both the first steering structure 600 and the second steering structure 700 include two steering wheels 620; the two steering wheels 620 are symmetrically arranged on both sides of the reel 610.

[0064] The conveyor belt 310 is located between the two towing cables 210, and the two towing cables 210 are located between the two load-bearing annular bodies.

[0065] Optionally, a pair of walking wheels 322 and a pair of rope connecting devices 323 are respectively connected to both sides of the load-bearing beam 321; the rope connecting device 323 includes a clamping jaw 3232 fixedly connected to the towing cable 210; the clamping jaw 3232 is located between the walking wheel 322 and the connection point of the rope beam, where the connection point of the rope beam is the connection point between the rope connecting device 323 and the load-bearing beam 321. With the above design, the stability of the towing cable 210 in towing the carrier vehicle 320 can be effectively improved.

[0066] See Figures 1 - 3 、 Figures 10 - 12 As shown in

[0067] In the optional solution of this embodiment, the towing cable 210 includes an upward towing cable portion and a downward towing cable portion that are connected end to end; the upward towing cable portion and the downward towing cable portion are connected end to end to form an annular structure.

[0068] Optionally, the lower steering wheel towing section 211 is wound around the steering wheel 620 of the first steering structure 600, and the upper steering wheel towing section 215 is wound around the steering wheel 620 of the second steering structure 700.

[0069] Optionally, the lower horizontal towing section 212 is parallel to the upper horizontal towing section 214. The lower horizontal towing section 212 and the upper horizontal towing section 214 contribute to the transfer of the conveyor belt 310 and the bulk materials loaded thereon, which is beneficial to a smooth transition.

[0070] Optionally, the upper inclined traction section 213 is parallel to the lower inclined traction section 217, and there is an included angle between the lower horizontal traction section 212 and the upper inclined traction section 213; through the upper inclined traction section 213 and the lower inclined traction section 217, it helps with the energy storage and discharge of the bulk materials loaded on the conveyor belt 310.

[0071] Optionally, the upper redirecting traction section 216 bends towards the direction of the second steering structure 700, and the lower redirecting traction section 218 bends towards the direction of the first steering structure 600; through the upper redirecting traction section 216 and the lower redirecting traction section 218, it is beneficial to reduce the height of the track support frame 130, increase the overall stability and reduce the investment.

[0072] Optionally, the traction structure 200 further includes a traction guiding device 220 for fixing on the ground; traction guiding devices 220 are provided at the connection between the lower horizontal traction section 212 and the upper inclined traction section 213, and at the connection between the upper inclined traction section 213 and the upper horizontal traction section 214; by providing the traction guiding device 220 at the connection between the lower horizontal traction section 212 and the upper inclined traction section 213, the traction structure 200 is steered; by providing the traction guiding device 220 at the connection between the upper inclined traction section 213 and the upper horizontal traction section 214, the traction structure 200 is steered.

[0073] Optionally, traction guiding devices 220 are provided on both the upper redirecting traction section 216 and the lower redirecting traction section 218. By providing traction guiding devices 220 on both the upper redirecting traction section 216 and the lower redirecting traction section 218, the contact angle and contact area between the traction cable 210 and the traction guiding device 220 are increased, which is beneficial for the upper redirecting traction section 216 and the lower redirecting traction section 218 to turn, and further beneficial to reducing the height of the track support frame 130, increasing the overall stability and reducing the investment.

[0074] See Figures 1 - 3 、 Figures 10 - 12 As shown, in the optional solution of this embodiment, the load-bearing ring body includes an upward load-bearing part and a downward load-bearing part that are connected end to end; the upward load-bearing part and the downward load-bearing part are connected end to end to form a ring structure.

[0075] The shape of the upward load-bearing part corresponds to the shape of the upward traction cable part, that is, the upward load-bearing part includes a lower steering wheel load-bearing section 111, a lower horizontal load-bearing section 112, an upper inclined load-bearing section 113, and an upper horizontal load-bearing section 114 that are connected in sequence; the shape of the downward load-bearing part corresponds to the shape of the downward traction cable part, that is, the downward load-bearing part includes an upper steering wheel load-bearing section 115, an upper redirecting load-bearing section 116, a lower inclined load-bearing section 117, and a lower redirecting load-bearing section 118 that are connected in sequence.

[0076] Specifically, one end of the lower turning wheel bearing section 111 facing away from the lower horizontal bearing section 112 is connected to one end of the lower redirecting bearing section 118 facing away from the lower inclined bearing section 117; the position of the lower turning wheel bearing section 111 corresponds to the lower turning wheel traction section 211, the position of the lower horizontal bearing section 112 corresponds to the lower horizontal traction section 212, the position of the upper inclined bearing section 113 corresponds to the upper inclined traction section 213, the position of the upper horizontal bearing section 114 corresponds to the upper horizontal traction section 214, and the position of the upper turning wheel bearing section 115 corresponds to the upper turning wheel bearing section 115; the position of the upper redirecting bearing section 116 corresponds to the upper redirecting traction section 216, the position of the lower inclined bearing section 117 corresponds to the lower inclined traction section 217, and the position of the lower redirecting bearing section 118 corresponds to the lower redirecting traction section 218; that is, the lower horizontal bearing section 112 is parallel to the upper horizontal bearing section 114, the upper inclined bearing section 113 is parallel to the lower inclined bearing section 117, and there is an included angle between the lower horizontal bearing section 112 and the upper inclined bearing section 113; the upper redirecting bearing section 116 is bent towards the second steering structure 700, and the lower redirecting bearing section 118 is bent towards the first steering structure 600.

[0077] As Figures 1 - 5 shown, optionally, when the load-bearing annular body includes two load-bearing tracks 110 and two load-bearing cables 120, the load-bearing track 110 includes a lower turning wheel bearing section 111, at least part of the lower horizontal bearing section 112, at least part of the upper horizontal bearing section 114, an upper turning wheel bearing section 115, an upper redirecting bearing section 116, and a lower redirecting bearing section 118. Optionally, the load-bearing cable 120 includes an upper inclined bearing section 113 and a lower inclined bearing section 117.

[0078] As shown in FIG. 01- Figure 13 shown, optionally, when the load-bearing annular body includes a load-bearing track 110 in an annular structure, the load-bearing track 110 includes a lower turning wheel bearing section 111, a lower horizontal bearing section 112, an upper inclined bearing section 113, an upper horizontal bearing section 114, an upper turning wheel bearing section 115, an upper redirecting bearing section 116, a lower inclined bearing section 117, and a lower redirecting bearing section 118, and the load-bearing structure 100 further includes a plurality of track support frames 130 for fixing to the ground. Optionally, at least part of the track support frames 130 simultaneously support and connect the upper inclined bearing section 113 and the lower inclined bearing section 117. By at least part of the track support frames 130 simultaneously supporting and connecting the upper inclined bearing section 113 and the lower inclined bearing section 117, the overall stability is increased and the investment is reduced.

[0079] See Figure 5 shown, in an alternative embodiment of the present embodiment, the driving device 400 is connected to the drum 610 and the steering wheel 620 of the same steering structure; so as to facilitate the driving device 400 to drive the drum 610 and the steering wheel 620 of the same steering structure to rotate.

[0080] Optionally, the steering structure further includes a coupling; in the same steering structure, the reel 610 and the steering wheel 620 are coaxially arranged and are both connected to the coupling.

[0081] Optionally, the towing cable 210 is connected with a tensioning device; through the tensioning device, the pre-tightening force of the towing cable 210 is increased, which helps the normal operation of the towing cable 210. Optionally, the load-bearing cable 120 is connected with a tensioning device; through the tensioning device, the pre-tightening force of the load-bearing cable 120 is increased, which helps the normal operation of the load-bearing cable 120. In this embodiment, the tensioning device includes one or more of a weight type structure, a hydraulic type structure, and a lead screw type structure, and the tensioning device can also adopt other forms of structures.

[0082] This embodiment further provides a double-dispersion material conveying gravity flow energy storage system, which includes the double-dispersion material conveying system described in any one of the above embodiments, and further includes a power generation device 500.

[0083] The first steering structure 600 is located at a low altitude, and the second steering structure 700 is located at a high altitude opposite to the low altitude.

[0084] When the conveyor belt 310 rotates in the first direction, that is, when the driving device 400 simultaneously drives the towing cable 210 and the conveyor belt 310 to rotate synchronously in the first direction, the conveyor belt 310 can drive the loaded bulk materials to be continuously conveyed to the high altitude, so as to convert electrical energy into gravitational potential energy for storage.

[0085] The power generation device 500 is connected to the first steering structure 600 and / or the second steering structure 700; under the action of gravity, the conveyor belt 310 loaded with bulk materials drives the conveyor belt 310 and the carrier vehicle 320 to move in the second direction and continuously convey the bulk materials to the low altitude to form a continuous gravity flow, and at the same time drives the first steering structure 600 and the second steering structure 700 to operate in the second direction to drive the power generation device 500 to generate electricity, so as to convert the continuous gravity flow into a continuous energy flow, thereby realizing continuous power discharge; wherein, the first direction is opposite to the second direction. For example, if the first direction is the clockwise direction, then the second direction is the counterclockwise direction, and vice versa. When the carrier vehicle 320 moves in the second direction, for example, the carrier vehicle 320 moves along the load-bearing ring body and in the second direction.

[0086] In the double-drive and material-dispensing gravity-flow energy storage system described in this embodiment, a reel 610 is used to drive a conveyor belt 310 and a steering wheel 620 is used to drive a towing cable 210 to jointly transport the bulk materials loaded on the conveyor belt 310 in a double-drive manner, which can reduce the running resistance to a certain extent, effectively improve the carrying capacity of the conveyor belt 310, and also reduce the requirements for the performance of the conveyor belt 310 to a certain extent, and can effectively reduce the occurrence probability of faults such as longitudinal tearing and belt breakage of the conveyor belt 310. By using a bearing structure 100 to bear all the carrier vehicles 320, the additional tension generated by the conveyor belt 310 due to overcoming factors such as the weight of the bulk materials can be effectively reduced or avoided, greatly improving the stability and carrying capacity of the system. Through a power generation device 500, the continuous gravity flow can be converted into a continuous energy flow, thereby realizing continuous power discharge.

[0087] The double-drive and material-dispensing gravity-flow energy storage system provided in this embodiment includes the above-mentioned double-drive and material-dispensing conveying system, and the technical features of the publicly disclosed double-drive and material-dispensing conveying system are also applicable to this double-drive and material-dispensing gravity-flow energy storage system, and the technical features of the publicly disclosed double-drive and material-dispensing conveying system will not be described repeatedly. The double-drive and material-dispensing gravity-flow energy storage system described in this embodiment has the advantages of the above-mentioned double-drive and material-dispensing conveying system, and the advantages of the publicly disclosed double-drive and material-dispensing conveying system will not be described repeatedly here.

[0088] Optionally, the steering structure further includes a coupling; in the same steering structure, the reel 610 and the steering wheel 620 are coaxially arranged and are both connected to the coupling. That is, the reel 610 and the steering wheel 620 of the first steering structure 600 are coaxially arranged, and the reel 610 and the steering wheel 620 of the second steering structure 700 are coaxially arranged.

[0089] Optionally, the driving device 400 is connected to the coupling; in this embodiment, the driving device 400 can be arranged at a low altitude or a high altitude, or driving devices 400 are arranged at both the low altitude and the high altitude to drive and connect the coupling. Being located at a high altitude can reduce the load during the energy storage process, and being located at a low altitude is convenient for the installation of the driving device 400.

[0090] Optionally, the power generation device 500 is connected to the coupling; in this embodiment, the power generation device 500 can be arranged at a low altitude or a high altitude, or power generation devices 500 are arranged at both the low altitude and the high altitude to connect to the coupling. Being located at a high altitude can reduce the load during the energy storage process, and being located at a low altitude is convenient for the installation of the power generation device 500.

[0091] In this embodiment, the driving device 400 and the power generation device 500 can be integrated or separated. Optionally, the driving device 400 and the power generation device 500 are motor-generators, or the driving device 400 and the power generation device 500 are independent of each other. Among them, a motor-generator (English name: Motor-Generator) refers to a device that can not only act as a motor to convert electrical energy into gravitational potential energy, but also act as a generator to convert gravitational potential energy into electrical energy and operate, and it has a two-way energy conversion function.

[0092] This embodiment also provides an energy storage method, which is applicable to the double-dispersion material conveying gravity flow energy storage system described in any of the above embodiments; this method includes: During energy storage charging, the bulk material is at a low altitude. The driving device 400 is driven by electrical energy, driving the first steering structure 600 and the second steering structure 700 to rotate in the first direction, so as to drive the traction cable 210 and the conveyor belt 310 to run in the first direction, and then drive all the carrier vehicles 320 to walk along the load-bearing ring body, while driving the conveyor belt 310 to walk synchronously; let the bulk material be successively loaded on the conveyor belt 310, and be successively conveyed to a high altitude along the load-bearing ring body and unloaded, so as to convert electrical energy into gravitational potential energy for storage.

[0093] During discharging, the bulk material is at a high altitude. The bulk material is successively loaded on the conveyor belt 310 and under the action of gravity, driving the conveyor belt 310 and the carrier vehicle 320 to move in the second direction and successively conveying the bulk material to a low altitude to form a continuous gravity flow. At the same time, driving the first steering structure 600 and the second steering structure 700 to rotate in the second direction, so as to drive the power generation device 500 to generate electricity continuously, so as to convert the continuous gravity flow into a continuous energy flow, so as to convert gravitational potential energy into continuous electrical energy, thereby realizing continuous discharging.

[0094] The energy storage method provided in this embodiment is applicable to the double-dispersion material conveying gravity flow energy storage system described above. The technical features of the double-dispersion material conveying gravity flow energy storage system disclosed above are also applicable to this energy storage method. The technical features of the double-dispersion material conveying gravity flow energy storage system disclosed above will not be repeated here. In this embodiment, the double-dispersion material conveying gravity flow energy storage system adopts the above energy storage method, and the energy storage method disclosed above is also applicable to this double-dispersion material conveying gravity flow energy storage system.

[0095] Optionally, the traveling speed and the transportation volume of the bulk material can be adjusted in real time according to requirements to change the magnitude of the gravity flow, so as to adjust the energy flow as needed, and then realize the functions of "slow charging and fast discharging" or "charging and discharging as needed"; adjusting the traveling speed of the bulk material can be achieved, for example, by adjusting the speeds of the driving device 400 and the power generation device 500. By adjusting the traveling speed and the transportation volume of the bulk material in real time according to requirements to change the magnitude of the gravity flow, the adaptability of the double-dispersion material conveying gravity flow energy storage system can be made wider.

[0096] Optionally, the number of the double-dispatching material conveying gravity flow energy storage systems is multiple; multiple double-dispatching material conveying gravity flow energy storage systems are installed side by side in the horizontal direction according to the terrain, and / or multiple double-dispatching material conveying gravity flow energy storage systems are stacked in the up-and-down direction according to the terrain. By installing multiple double-dispatching material conveying gravity flow energy storage systems side by side in the horizontal direction according to the terrain, and stacking multiple double-dispatching material conveying gravity flow energy storage systems in the up-and-down direction according to the hillside terrain, a larger-scale energy storage can be achieved.

[0097] Currently, due to relying on the lifting of heavy objects to achieve potential energy conversion, most gravity energy storage systems have intermittent charging / discharging problems. The double-dispatching material conveying system, its gravity flow energy storage system and energy storage method described in this embodiment are a new type of mechanical gravity energy storage technology, aiming to use bulk energy storage bodies to provide continuous gravity flow so as to achieve continuous energy flow, and solve the problems of intermittency, difficult site selection, large investment, etc. of existing gravity energy storage.

[0098] The double-dispatching material conveying system, its gravity flow energy storage system and energy storage method described in this embodiment have the following advantages: 1. Apply the conveying principle in the field of bulk material transportation to the field of gravity energy storage to achieve continuous gravity flow energy storage.

[0099] 2. The traditional belt conveyor is driven by a belt. In this solution, the drum 610 is used to drive the conveyor belt 310 and the steering wheel 620 is used to drive the towing cable 210 to jointly transport the bulk materials loaded on the conveyor belt 310 in a double-drive manner, effectively improving the carrying capacity of the conveyor belt 310; the towing cable 210 and the conveyor belt 310 jointly drive the bulk materials loaded on the towing conveyor belt 310, the bearing structure 100 bears all the carrier vehicles 320, and then the carrier vehicles 320 bear the bulk materials loaded on the conveyor belt 310, effectively reducing or avoiding the bearing capacity of the conveyor belt 310 and the towing cable 210, and greatly improving the stability and carrying capacity of the double-dispatching material conveying system. Through the bearing structure 100 and the towing cable 210, the conveyor belt 310 only bears partial tensile stress along the running direction, thus reducing the requirements for the performance of the conveyor belt 310, and a more economical conveyor belt 310 can be used, which can greatly improve the service life. At the same time, the conveyor belt 310 that bears part of the traction force can also reduce the occurrence probability of faults such as longitudinal tearing and belt breakage.

[0100] 3. The traditional belt conveyor is supported by idlers for the upper and lower branch belts. When the traction belt runs, it drives the idlers to rotate. In this embodiment, the carrier vehicle 320 is used to support the conveyor belt 310, and the towing cable + conveyor belt 310 drive the carrier vehicle 320 and the conveyor belt 310 to run together through the towing cable, avoiding the indentation resistance between the conveyor belt 310 and the idlers and the extrusion resistance when the materials pass through the idlers, and can greatly reduce the running resistance and improve the carrying efficiency.

[0101] 4. Replace the idler with the carrier vehicle 320. The carrier vehicle 320 is integrally connected to the conveyor belt 310. When the carrier vehicle 320 runs along the load-bearing structure 100, the rolling resistance between the wheels of the carrier vehicle 320 and the load-bearing structure 100 is much smaller than that of the idler.

[0102] 5. Incorrect installation of the idler has a twisting effect on the conveyor belt 310, and the phenomenon of the conveyor belt 310 running off track is likely to occur. In this embodiment, the carrier vehicle 320 is fixed to the conveyor belt 310, and there is no problem of the conveyor belt running off track.

[0103] 6. The idlers are arranged throughout the conveying line, and a large amount of manpower, material resources and time are required for inspection and maintenance. In this embodiment, the carrier vehicle 320 can be repaired at fixed points at specific positions.

[0104] 7. In order to cooperate with the traction cable, an integrated steering wheel 620 + drum 610 is innovatively designed. The steering wheel 620 and the drum 610 are installed on the same shaft. The diameter of the steering wheel 620 and the diameter of the drum 610 match the corresponding wire rope diameter and the thickness of the conveyor belt 310; In addition, the bearing beam 321 of the innovatively designed carrier vehicle 320 is directly embedded in the conveyor belt 310 during the production process of the conveyor belt 310, ensuring the stability of the bearing beam 321.

[0105] 8. In order to apply the system more widely and reduce the space occupied by the system, a traction guiding device 220 is designed. On the one hand, it raises the lower redirecting traction section 218 to avoid contacting the ground, and on the other hand, it also shortens the distance between the upper inclined traction section 213 and the lower inclined traction section 217 through the upper redirecting traction section 216. At the same time, the traction guiding device 220 also increases the contact angle / contact area between the traction cable and the steering wheel 620, improves the friction force, and can improve the transportation capacity and charging / discharging power of the system.

[0106] 9. The load-bearing cable 120 replaces the track installed on the ground, can cross the gully terrain, greatly reduces the investment in civil engineering and steel structures, and at the same time avoids large-scale ground occupation and protects the vegetation.

[0107] The above are only the preferred embodiments of the present invention and are not used to limit the present invention. For those skilled in the art, the present invention can have various changes and modifications. Any modification, equivalent replacement, improvement, etc. made within the spirit and principle of the present invention shall be included within the protection scope of the present invention.

Claims

1. A double-dispelling and conveying system, characterized in that, It includes a load-bearing structure (100), a traction structure (200), a conveying structure (300), a driving device (400), a first steering structure (600), a second steering structure (700), and a stacking yard for storing bulk materials; The conveying structure (300) includes an annular conveyor belt (310) and a plurality of carrier vehicles (320); along the extending direction of the conveyor belt (310), the plurality of carrier vehicles (320) are sequentially and fixedly connected to the conveyor belt (310); The load-bearing structure (100) includes a load-bearing annular body that bears all the carrier vehicles (320); the load-bearing annular body has an annular structure; The traction structure (200) includes a traction cable (210) that traction all the carrier vehicles (320); the traction cable (210) is annular; Both the first steering structure (600) and the second steering structure (700) are steering structures, and the steering structure includes a reel (610) and a steering wheel (620); the conveyor belt (310) circulates between the reel (610) of the first steering structure (600) and the reel (610) of the second steering structure (700), and the traction cable (210) circulates between the steering wheel (620) of the first steering structure (600) and the steering wheel (620) of the second steering structure (700); The driving device (400) is connected to the first steering structure (600) and / or the second steering structure (700) to be able to drive the traction cable (210) and the conveyor belt (310) to rotate synchronously in a first direction, thereby driving the carrier vehicle (320) to move synchronously along the load-bearing annular body and the conveyor belt (310).

2. The dual-dispensing and conveying system according to claim 1, wherein The load-bearing annular body includes two load-bearing tracks (110) and two load-bearing cables (120), the two load-bearing cables (120) are arranged in parallel, and the two load-bearing tracks (110) are respectively connected to both ends of the two load-bearing cables (120) so that the two load-bearing tracks (110) and the two load-bearing cables (120) form an annular structure; or, the load-bearing annular body includes a load-bearing track (110) having an annular structure; The load-bearing annular bodies are arranged in pairs, and the conveyor belt (310) is located between the load-bearing annular bodies arranged in pairs; The traction cables (210) are arranged in pairs, and the conveyor belt (310) is located between the traction cables (210) arranged in pairs; The carrier vehicle (320) includes a load-bearing beam (321), traveling wheels (322), and a rope connecting device (323); the load-bearing beam (321) is fixedly connected to the conveyor belt (310); At least one pair of the traveling wheels (322) is pivotally connected to both sides of the load-bearing beam (321), and the traveling wheels (322) are configured to be able to travel on the load-bearing annular body; At least one pair of the rope connecting devices (323) is rotatably connected to both sides of the carrying beam (321); the rope connecting device (323) is fixedly connected to the towing cable (210), and there is an included angle between the rotation axis of the rope connecting device (323) and the extending direction of the towing cable (210).

3. The double-dispatching and conveying system according to claim 2, wherein, The rope connecting device (323) includes a rope connecting body (3231) and a clamping jaw (3232); the clamping jaw (3232) is fixedly connected to the end of the rope connecting body (3231), and the jaws (3233) of the clamping jaw (3232) face the center line of the towing cable (210); the clamping jaw (3232) is fixedly connected to the towing cable (210); a carrying bearing (3234) is connected between the rope connecting body (3231) and the carrying beam (321); When the carrying annular body includes the carrying cable (120), the traveling wheels (322) have traveling wheel grooves that cooperate with the carrying cable (120); The carrying track (110) has a wheel groove that cooperates with the traveling wheel (322); along the radial direction of the traveling wheel (322), the carrying track (110) has corresponding bottom and top of the groove, and the bottom and the top of the groove form the wheel groove, and the wheel groove extends along the extending direction of the carrying track (110), and the traveling wheel (322) abuts against the bottom and / or the top of the groove.

4. The dual-dispensing material conveying system according to claim 2, wherein The conveyor belt (310) includes a belt body (311) and edge guard portions (312) provided on both sides of the belt body (311); along the extending direction of the conveyor belt (310), the edge guard portions (312) are corrugated or zigzag; The carrying beam (321) is fixedly connected inside the belt body (311), or the carrying beam (321) is fixedly connected to the side of the belt body (311) facing away from the steering structure; The conveyor belt (310) further includes a plurality of partition portions (313); along the extending direction of the conveyor belt (310), the plurality of partition portions (313) are sequentially arranged at intervals between the two edge guard portions (312); The belt body (311), the edge guard portions (312), the partition portions (313) and the carrier vehicle (320) are of an integral structure.

5. The double-dispatching and conveying system according to claim 2, wherein, The number of the carrying annular bodies is two, and each carrying track (110) is supported and connected by a plurality of track support frames (130) for fixing to the ground; When the carrying annular body includes the carrying cable (120), the carrying structure (100) includes a carrying cable fixing device (140) and a carrying cable supporting device (150), and the end of each carrying cable (120) passes through the carrying cable supporting device (150) and is fixedly connected to the carrying cable fixing device (140); the carrying cable fixing device (140) is configured to be fixed to the ground by an anchoring method; When the load-bearing annular body includes a load-bearing cable (120), the load-bearing structure (100) further includes a load-bearing cable guiding device, the load-bearing cable guiding device being configured to support and guide the load-bearing cable (120); the matching portion between the load-bearing cable (120) and the load-bearing track (110) is located between the connection portion between the load-bearing cable (120) and the load-bearing cable guiding device and the connection portion between the load-bearing cable (120) and the load-bearing cable fixing device (140); The number of the traction ropes (210) is two, and accordingly, the first steering structure (600) and the second steering structure (700) each include two steering wheels (620); the two steering wheels (620) are symmetrically arranged on both sides of the drum (610); The conveyor belt (310) is located between the two traction cables (210), and the two traction cables (210) are located between the two load-bearing annular bodies; A pair of the running wheels (322) and a pair of the rope connection devices (323) are respectively connected to two sides of the load-bearing beam (321); the rope connection device (323) comprises a claw (3232) fixedly connected to the traction rope (210); the claw (3232) is located between the running wheels (322) and a cable-beam connection, wherein the cable-beam connection is a connection between the rope connection device (323) and the load-bearing beam (321).

6. The double-dispelling and feeding conveying system according to claim 1, wherein, The traction rope (210) comprises an upward traction rope portion and a downward traction rope portion connected end to end; The upward traction rope portion comprises a lower steering wheel traction section (211), a lower horizontal traction section (212), an upper inclined traction section (213) and an upper horizontal traction section (214) which are connected in sequence; The downward traction rope portion comprises an upper steering wheel traction section (215), an upper redirection traction section (216), a lower inclined traction section (217) and a lower redirection traction section (218) which are connected in sequence; One end of the lower steering wheel traction section (211) facing away from the lower horizontal traction section (212) is connected to one end of the lower redirection traction section (218) facing away from the lower inclined traction section (217); The lower steering wheel traction section (211) is wound around the steering wheel (620) of the first steering structure (600), and the upper steering wheel traction section (215) is wound around the steering wheel (620) of the second steering structure (700); The lower horizontal traction section (212) is parallel to the upper horizontal traction section (214), the upper inclined traction section (213) is parallel to the lower inclined traction section (217), and an angle is formed between the lower horizontal traction section (212) and the upper inclined traction section (213); The upper redirecting traction section (216) bends in the direction of the second steering structure (700), and the lower redirecting traction section (218) bends in the direction of the first steering structure (600); The traction structure (200) further includes a traction guiding device (220) for fixing on the ground; the traction guiding device (220) is provided at the junction of the lower horizontal traction section (212) and the upper inclined traction section (213), and at the junction of the upper inclined traction section (213) and the upper horizontal traction section (214); the traction guiding device (220) is provided on both the upper redirecting traction section (216) and the lower redirecting traction section (218).

7. The double-dispensing and conveying system according to claim 6, wherein The load-bearing annular body includes an upward load-bearing part and a downward load-bearing part connected end to end; The shape of the upward load-bearing part corresponds to the shape of the upward traction cable part. The upward load-bearing part includes a lower turning wheel load-bearing section (111), a lower horizontal load-bearing section (112), an upper inclined load-bearing section (113), and an upper horizontal load-bearing section (114) connected in sequence; The shape of the downward load-bearing part corresponds to the shape of the downward traction cable part. The downward load-bearing part includes an upper turning wheel load-bearing section (115), an upper redirecting load-bearing section (116), a lower inclined load-bearing section (117), and a lower redirecting load-bearing section (118) connected in sequence; One end of the lower turning wheel load-bearing section (111) away from the lower horizontal load-bearing section (112) is connected to one end of the lower redirecting load-bearing section (118) away from the lower inclined load-bearing section (117); The position of the lower turning wheel load-bearing section (111) corresponds to that of the lower turning wheel traction section (211), the position of the lower horizontal load-bearing section (112) corresponds to that of the lower horizontal traction section (212), the position of the upper inclined load-bearing section (113) corresponds to that of the upper inclined traction section (213), the position of the upper horizontal load-bearing section (114) corresponds to that of the upper horizontal traction section (214), and the position of the upper turning wheel load-bearing section (115) corresponds to that of the upper turning wheel load-bearing section (115); the position of the upper redirecting load-bearing section (116) corresponds to that of the upper redirecting traction section (216), the position of the lower inclined load-bearing section (117) corresponds to that of the lower inclined traction section (217), and the position of the lower redirecting load-bearing section (118) corresponds to that of the lower redirecting traction section (218); When the load-bearing annular body includes two load-bearing tracks (110) and two load-bearing cables (120), the load-bearing track (110) includes the lower turning wheel load-bearing section (111), at least part of the lower horizontal load-bearing section (112), at least part of the upper horizontal load-bearing section (114), the upper turning wheel load-bearing section (115), the upper redirecting load-bearing section (116), and the lower redirecting load-bearing section (118); the load-bearing cable (120) includes the upper inclined load-bearing section (113) and the lower inclined load-bearing section (117); When the load-bearing annular body includes a load-bearing track (110) in an annular structure, the load-bearing track (110) includes a lower steering wheel load-bearing section (111), a lower horizontal load-bearing section (112), an upper inclined load-bearing section (113), an upper horizontal load-bearing section (114), an upper steering wheel load-bearing section (115), an upper redirecting load-bearing section (116), a lower inclined load-bearing section (117), and a lower redirecting load-bearing section (118). The load-bearing structure (100) further includes a plurality of track support frames (130) for fixing to the ground, and at least some of the track support frames (130) simultaneously support and connect the upper inclined load-bearing section (113) and the lower inclined load-bearing section (117).

8. The dual-dispensing and conveying system according to claim 1, wherein, The driving device (400) is connected to the drum (610) and the steering wheel (620) of the same steering structure; The steering structure further includes a coupling; in the same steering structure, the drum (610) and the steering wheel (620) are coaxially arranged and are both connected to the coupling; The towing cable (210) is connected with a tensioning device; the tensioning device includes one or more of a weight type structure, a hydraulic type structure, and a lead screw type structure; The double-dispersion material conveying system further includes a transfer device; the first steering structure (600) is located at a low altitude, and the second steering structure (700) is located at a high altitude opposite to the low altitude; both the low altitude and the high altitude are provided with the transfer device and the stacking yard; the transfer device is configured to reciprocally transport the bulk material between the conveyor belt (310) and the stacking yard.

9. A double-dispelling and material-conveying gravity flow energy storage system, characterized in that, Including the double-dispersion material conveying system according to any one of claims 1-8, further including a power generation device (500); The first steering structure (600) is located at a low altitude, and the second steering structure (700) is located at a high altitude opposite to the low altitude; When the conveyor belt (310) rotates in the first direction, it can drive the loaded bulk material to be continuously conveyed to the high altitude, thereby converting electrical energy into gravitational potential energy for storage; The power generation device (500) is connected to the first steering structure (600) and / or the second steering structure (700); under the action of gravity, the conveyor belt (310) loaded with bulk material drives the conveyor belt (310) and the carrier vehicle (320) to move in the second direction and continuously convey the bulk material to the low altitude to form a continuous gravity flow, and at the same time drives the first steering structure (600) and the second steering structure (700) to rotate in the second direction to drive the power generation device (500) to generate electricity, so as to convert the continuous gravity flow into a continuous energy flow, thereby realizing continuous power discharge; wherein, the first direction is opposite to the second direction.

10. The double-dispelling and feeding gravity flow energy storage system according to claim 9, wherein The steering structure further includes a coupling; in the same steering structure, the drum (610) and the steering wheel (620) are coaxially arranged and are both connected to the coupling; The driving device (400) is connected to the coupling; The power generation device (500) is connected to the coupling; The driving device (400) and the power generation device (500) are motor generators, or the driving device (400) and the power generation device (500) are independent of each other.

11. A method for energy storage, characterized in that, Applicable to the double-dispersion material conveying gravity flow energy storage system according to any one of claims 9 and 10; the method includes: During energy storage charging, the bulk material is at a low altitude. The driving device (400) is driven by electric energy to drive the first steering structure (600) and the second steering structure (700) to rotate in a first direction, so as to drive the traction cable (210) and the conveyor belt (310) to operate in the first direction, and further drive all the carrier vehicles (320) to travel along the load-bearing ring body, and at the same time drive the conveyor belt (310) to travel synchronously; make the bulk material be successively loaded on the conveyor belt (310), and be successively conveyed along the load-bearing ring body to a high altitude and unloaded, so as to convert electric energy into gravitational potential energy for storage; During discharging, the bulk material is at a high altitude. The bulk material is successively loaded on the conveyor belt (310) and under the action of gravity, drives the conveyor belt (310) and the carrier vehicle (320) to move in a second direction and successively convey the bulk material to the low altitude to form a continuous gravity flow. At the same time, drive the first steering structure (600) and the second steering structure (700) to rotate in the second direction to drive the power generation device (500) to generate electricity continuously, so as to convert the continuous gravity flow into a continuous energy flow, thereby converting gravitational potential energy into continuous electric energy.

12. The energy storage method according to claim 11, wherein Adjust the traveling speed and transportation volume of the bulk material in real time according to requirements to change the magnitude of the gravity flow, so as to adjust the energy flow as needed, and further realize the functions of "slow charging and fast discharging" or "charging and discharging as needed"; The number of the double-dispersion material conveying gravity flow energy storage systems is multiple; a plurality of the double-dispersion material conveying gravity flow energy storage systems are installed side by side in the horizontal direction according to the terrain, and / or a plurality of the double-dispersion material conveying gravity flow energy storage systems are stacked in the up-down direction according to the terrain.

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