A mine solid waste gravity energy storage and bulk material rail transportation control system

Abstract

The present invention discloses a mine solid waste gravity energy storage and bulk material rail transportation control system. Upper / lower solid waste energy storage bins are added to the loading and transportation line. The upper / lower material receiving rails are connected to the loading and transportation line. The upper / lower solid waste dumping rails complete the energy storage and unloading. The rails are connected through intelligent switches to form a loading and transportation line, a gravity energy storage and transportation line, a power generation and transportation line, and a transportation-power generation compatible line. The main control center sets four transportation modes for loading trains, namely: loading and transportation mode, gravity energy storage and transportation mode, power generation and transportation mode, and transportation-power generation compatible mode. The loading train enters the corresponding mode line under the mode selection control of the main control center. The present invention maximizes the use of existing loading and transportation lines and their height difference advantages to form gravity energy storage and power generation lines, reducing the construction cost of gravity energy storage power stations. At the same time, it integrates transportation and power generation, effectively alleviating the pressure of electricity consumption during peak periods.

Description

Technical Field

[0001] The present invention relates to the technical field of mine transportation, and in particular to a mine solid waste gravity energy storage and bulk material rail transportation control system. Background Art

[0002] With the rapid development of my country's national economy, the types and number of electrical equipment have increased dramatically, causing the peak-valley difference of the power grid to continue to increase, which not only aggravates the difficulty of peak regulation of the power grid, but also brings huge challenges to the stability of the power grid. The energy storage system can store energy when the power grid has excess energy and release energy when the power grid needs it. The millisecond-level power dynamic compensation capability of the advanced energy storage system can greatly improve the instability problems caused by the randomness, volatility and intermittency of renewable energy power generation to the power grid. In the power market environment, peak-valley electricity prices are implemented. The energy storage system can store the excess electricity generated after the power source participates in the grid dispatch at a low electricity price, and merge it into the grid when there is a dispatch demand or high electricity price, participate in peak regulation, and maximize the benefits of distributed power generation.

[0003] Gravity energy storage, a new long-term, high-capacity energy storage method, combines the advantages of high safety, high efficiency, long life, and a short construction period. The basic energy storage process is to use excess electricity to drive a motor to lift a heavy object, converting it into high-level potential energy storage; the heavy object is then released to generate electricity. Due to its large energy storage capacity, long output time, and low unit energy cost, it can accurately track grid dispatch instructions.

[0004] At present, in the transportation of bulk materials in mines, bulk materials need to be transported from the mining area to the ground. There is a large height difference between the underground and the ground. How to utilize the existing structure of the mine to realize the construction of a large-scale gravity energy storage system in the mining area is the core problem that needs to be solved by this invention. Summary of the Invention

[0005] To solve the above problems, the present invention proposes a mine solid waste gravity energy storage and bulk material rail transportation control system, which includes a loading train, an underground loading station, a ground unloading station, a track and a general control center. Several drive stations are installed on the track. The loading train runs on the track driven by the drive station. The track is connected to the uphill track, the ground track, the unloading dumping track at one end of the underground track, and then to the downhill track through a section of the ground track, and then to the other end of the underground track to form a loading and transportation line.

[0006] An upper solid waste energy storage bin is provided in the area between the ground rails, an upper material receiving rail is provided below the upper solid waste energy storage bin, and an upper solid waste dumping rail is provided above the upper solid waste energy storage bin. Both ends of the upper material receiving rail and the upper solid waste dumping rail are connected to the ground rails, and the outlet end of the unloading dumping rail and the inlet end of the upper material receiving rail are connected to the transport-power generation conversion rail;

[0007] A downhill power generation area is provided on the downhill rail, and the downhill power generation area is connected to the accumulator;

[0008] A lower solid waste energy storage bin is provided in the underground goaf of the mine, a lower material receiving rail is provided below the lower solid waste energy storage bin, and a lower solid waste dumping rail is provided above the lower solid waste energy storage bin, and both ends of the lower material receiving rail and the lower solid waste dumping rail are connected to the underground track;

[0009] The outlet end of the upper receiving rail is connected in sequence to the ground rail, the downhill power generation area of ​​the downhill rail, the underground rail, and then enters the lower solid waste dumping rail and connects to the underground rail, and then passes through the uphill rail to the inlet end of the upper receiving rail to form a power generation and transportation line;

[0010] The outlet end of the lower receiving rail is connected to the underground track, the uphill track, and the ground track in sequence to enter the upper solid waste dumping track and then connect to the ground track, and then connect to the inlet end of the lower receiving rail through the downhill track and the underground track to form a gravity energy storage transportation line;

[0011] The loading train loads materials from the underground loading station, unloads materials through the ground track, uphill track, and unloading dumping track, enters the upper receiving track through the ground track and the transportation-power generation conversion track, receives materials in the power generation mode, and then exits the upper receiving track and passes through the downhill power generation area of ​​the downhill track to convert the gravitational potential energy into mechanical energy for power generation and energy storage in the accumulator. After power generation, the device train enters the lower solid waste dumping track through the underground track to dump the solid waste bulk materials into the lower solid waste energy storage bin in the goaf, and then enters the underground track back to the loading station, forming a transportation-power generation compatible line.

[0012] The general control center sets four transportation modes for loading trains, namely: loading transportation mode, gravity energy storage transportation mode, power generation transportation mode, and transportation-power generation compatible mode. The loading train enters the corresponding mode line transportation under the mode selection control of the general control center.

[0013] Furthermore, intelligent switches are provided at the intersections of the tracks, and the intelligent switches include switch controllers and switchers. The switch controllers control the switchers to perform track conversion connections. When the general control center controls the loading train to enter the corresponding transport mode, the intelligent switches on the transport lines corresponding to the transport mode connect the transport lines.

[0014] Furthermore, when the loading train enters the loading and transport mode or the gravity energy storage transport mode, the downhill power generation area is in a normally closed state. When the loading train enters the power generation and transport mode or the transport-power generation compatible mode, the main control center controls the downhill power generation area to start working.

[0015] Furthermore, the downhill power generation area includes several power generation units arranged on the downhill rail, and the power generation unit includes a box body, which is embedded in the track and does not interfere with the loading train. At least one group of power generation components is arranged in the box body, and a support base plate is provided under the power generation component. The support base plate is slidably connected to the bottom surface of the box body through a slide rail, and the end face of the support base plate is connected to the output end of the hydraulic cylinder, and the cylinder body of the hydraulic cylinder is connected to the bottom surface of the box body. The power generation component includes a generator, a speed increaser, and a generator wheel. The generator wheel drives the speed increaser to rotate through a rotating shaft, and the output end of the speed increaser is connected to the generator, and the generator is connected to the battery. When the power generation unit is in working state, the hydraulic cylinder drives the support base plate to slide, thereby driving the power generation wheel of the power generation component to be pressed toward the drive plate of the loading train.

[0016] Furthermore, the loading train includes a car body, a train IMU, a train coding wheel, a front RFID, a rear RFID, a train controller and a train wireless module. The train IMU, the train coding wheel and the front RFID are all arranged at the front of the car body, and the rear RFID is arranged at the rear of the car body. The train IMU, the train coding wheel, the front RFID, the rear RFID and the train wireless module are all wirelessly connected to the train controller. The train controller communicates with the main control center via the train wireless module. The train IMU is used to obtain acceleration and then calculate the speed of the loading train. The train coding wheel is used to calculate the position of the train. The rear RFID is used to mark the passed drive station. The loading train has completed its journey and the corresponding drive station has stopped operating.

[0017] Furthermore, the loaded train travels at a uniform speed on the track, and there are N upper material receiving rails and N lower material receiving rails. The entrance ends of the upper material receiving rails / lower material receiving rails are connected to a multi-track intelligent turnout, and the multi-track intelligent turnout includes a multi-track turnout controller, a multi-track switch, and two RFID sensors. The multi-track turnout controller is wirelessly connected to the main control center, and the multi-track switch, the second RFID sensor and the multi-track turnout controller are electrically connected.

[0018] Furthermore, the upper connecting rail / lower connecting rail of each road is numbered from 1 to N according to the position, and the track number and corresponding position information of the upper connecting rail / lower connecting rail are stored in the multi-track switch controller.

[0019] The multi-track intelligent turnout includes a single-track material transport mode and a multi-track material transport mode.

[0020] When only one upper material receiving rail / lower material receiving rail is in the waiting state, the main control center controls the multi-track intelligent switch to enter the single-way material receiving and transportation mode;

[0021] When multiple upper material receiving rails / lower material receiving rails are in the waiting state, the main controller center controls the multi-track intelligent switch to enter the multi-way material receiving and transportation mode.

[0022] Furthermore, in the single-track material connection and transportation mode, the track number of the upper material connection rail / lower material connection rail in the working state is obtained, and the track number information is manually input into the main control center. When the main control center controls the loading train to enter the power generation transportation mode or the transportation-power generation compatible mode, the main control center feeds back the obtained track number information to the multi-track switch controller on the upper material connection rail, and the multi-track switch controller on the upper material connection rail controls the multi-track switch to connect the upper material connection rail with its track number with the track line; when the main control center controls the loading train to enter the gravity energy storage transportation mode, the main control center feeds back the obtained track number information to the multi-track switch controller on the lower material connection rail, and the multi-track switch controller on the lower material connection rail controls the corresponding multi-track switch to connect the lower material connection rail with its track number with the track line.

[0023] Furthermore, in the multi-way material connection and transportation mode, the track number of the upper material connection rail / lower material connection rail in the working state is obtained, and the track number information is manually input to the main control center. The upper material connection rail / lower material connection rail of any track number among the above track numbers is selected as the initial track. When the main control center controls the loading train to enter the power generation transportation mode or the transportation-power generation compatible mode, the main control center feeds back the initial track number to the multi-track switch controller, and the multi-track switch controller controls the corresponding multi-track switch to connect the initial track of the upper material connection rail. When the loading train enters the upper material connection rail of the initial track, the RFID Sensor 2 scans the RFID at the rear of the train, and RFID sensor 2 sends the information that the loading train has passed through the parking space to the multi-track switch controller. After receiving RFID sensor 2, the multi-track switch controller controls the multi-track switch to close the initial track and connect the multi-track switch to the next upper receiving rail, and connects them in a cycle until the work is completed; when the main control center controls the loading train to enter the gravity energy storage transportation mode, the main control center feeds back the initial track number to the multi-track switch controller on the lower receiving rail, and the working control method of the multi-track switch controller on the lower receiving rail is the same as that of the multi-track switch controller on the upper receiving rail.

[0024] Furthermore, when the loading train enters any of the gravity energy storage transport mode, power generation transport mode, and transport-power generation compatible mode, in order to ensure that the first car has just finished receiving the material and is ready to leave, the N+1 car enters the same upper receiving rail / lower receiving rail of the first car to load the material without collision, the main control center controls the initial departure distance of the loading train to X based on the number of upper receiving rails / lower receiving rails, which is N.

[0025] When the loading train enters the upper receiving rail / lower receiving rail, it moves at a constant speed under the control of the driving station, that is, the speed on the transport track is V 运, the material receiving speed of the loading train on the material receiving track is: V 接 , the length of the loading train is: L, then when the front of the first car enters the upper receiving rail / lower receiving rail, the distance between it and the N+1 car is S, S=N*X+(N-1)*L,

[0026] The time for the loading train to enter the upper receiving rail / lower receiving rail to receive materials is t0. When the first loading train enters the upper receiving rail / lower receiving rail to receive materials until the receiving is completed, the receiving speed is V 接 , that is, the distance traveled by the first vehicle on the upper receiving rail / lower receiving rail within time t0 is: V 接 *t0,

[0027] The N+1th vehicle travels on the track at a speed of V 运 , the track travel distance in time t0 is V 运 *t0;

[0028] After the first loading train enters the upper receiving rail / lower receiving rail and finishes receiving materials, the distance between the first loading train and the N+1 train when it is ready to enter the receiving rail is reduced by S', S'=V 运 *t0-V 接 *t0, in order to reduce the waiting time between the first car and the N+1 car, S≥S', so,

[0029] N*X+(N-1)*L≥V 运 *t0-V 接 *t0

[0030] Finally, when the number of upper and lower connecting rails is N, the master controller controls the initial departure distance of the loading train to be:

[0031] X≥(V 运 -V 接 )*t0 / N-(1-1 / N)*L.

[0032] Compared with the prior art, the present invention has the following beneficial effects:

[0033] The present invention utilizes the height difference of the existing mine loading and transportation line to add an upper solid waste energy storage bin and a lower solid waste energy storage bin, and is provided with an upper material receiving rail / a lower material receiving rail connected to the loading and transportation line. Upper / lower solid waste dumping rails are correspondingly provided above the upper / lower solid waste energy storage bins, thereby realizing gravity energy storage and unloading of solid waste mineral materials. Intelligent switches are provided at the intersection of the tracks. The track connection methods of the intelligent switches are different to form loading and transportation lines, gravity energy storage transportation lines, power generation transportation lines, and transportation-power generation compatible lines. The main control center sets four transportation modes for loading trains, namely: loading and transportation mode, gravity energy storage transportation mode, power generation transportation mode, and transportation-power generation compatible mode. The loading train enters the corresponding mode line transportation under the mode selection control of the main control center. The present invention maximizes the advantage of the height difference of the existing loading and transportation lines, and utilizes the solid waste ore in the mine goaf on the basis of the existing tracks to form gravity energy storage and gravity power generation lines, and relies on the existing loading trains for gravity energy storage transportation and power generation. Whether it is the tracks, gravity blocks, or energy storage stations, they all utilize the existing conditions and facilities of the mine, greatly reducing the construction cost of the gravity energy storage power station. At the same time, on the existing transshipment and transportation lines, transportation and power generation are integrated. Gravity energy storage transportation is carried out during non-working or low electricity consumption periods. During working and peak electricity consumption periods, the transportation-power generation compatible mode or power generation and transportation mode can be entered, effectively alleviating the peak electricity consumption pressure. BRIEF DESCRIPTION OF THE DRAWINGS

[0034] Figure 1 Schematic diagram of the overall structure of this embodiment;

[0035] Figure 2 Schematic diagram of the structure of the power generation unit in this embodiment;

[0036] Figure 3 This is a schematic diagram of the two-track intelligent turnout structure in this embodiment;

[0037] Figure 4 This is a schematic diagram of the three-track intelligent turnout structure in this embodiment;

[0038] Figure 5 This is a schematic diagram of the solid waste unloading structure of the high-level energy storage bin in this embodiment;

[0039] Figure 6 Schematic diagram of calculation of the distance S between the first car and the (N+1) car when the front end of the first car enters the high / low material receiving rail in this embodiment. DETAILED DESCRIPTION

[0040] In the description of the present invention, it should be noted that the terms "center," "upper," "lower," "left," "right," "vertical," "horizontal," "inner," and "outer," etc., indicating orientations or positional relationships, are based on the orientations or positional relationships shown in the accompanying drawings and are intended solely to facilitate and simplify the description of the present invention. They are not intended to indicate or imply that the devices or components referred to must have a specific orientation, be constructed, or operate in a specific orientation. Therefore, they should not be construed as limitations on the present invention. Furthermore, the terms "first," "second," and "third" are used for descriptive purposes only and should not be construed as indicating or implying relative importance.

[0041] In the description of the present invention, it should be noted that, unless otherwise expressly specified or limited, the terms "mounted," "connected," and "connected" should be understood in a broad sense. For example, they may refer to fixed, detachable, or integral connections; mechanical or electrical connections; direct or indirect connections through an intermediate medium; and internal communication between two components. Those skilled in the art will understand the specific meanings of the above terms in the present invention based on the specific circumstances.

[0042] The following is attached with the instruction manual Figure 1-5 The present invention will be further described:

[0043] like Figure 1 As shown, in this embodiment, a mine solid waste gravity energy storage and bulk material rail transportation control system includes a loading train 1, an underground loading station 2, a ground unloading station 3, a track and a general control center. Several drive stations 4 are installed on the track. The loading train 1 travels at a constant speed on the track driven by the drive station 4. The track is connected from one end of the underground track 5-1 to the uphill track 5-2, the ground track 5-3, the unloading dumping rail 6 in sequence, and then through a section of the ground track 5-3 to the downhill track 5-4, and then connected to the other end of the underground track 5-1 to form a loading and transportation line.

[0044] An upper solid waste energy storage bin 7-1 is provided in the area between the ground rails 5-3, an upper material receiving rail 7-2 is provided below the upper solid waste energy storage bin 7-1, and an upper solid waste dumping rail 7-3 is provided above the upper solid waste energy storage bin 7-1. Both ends of the upper material receiving rail 7-2 and the upper solid waste dumping rail 7-3 are connected to the ground rail 5-3, and the outlet end of the unloading and dumping rail 6 and the inlet end of the upper material receiving rail 7-2 are connected to the transport-power generation conversion rail 8;

[0045] A lower solid waste storage bin 9-1 is provided in the underground goaf of the mine. A lower material receiving rail 9-2 is provided below the lower solid waste storage bin 9-1, and a lower solid waste dumping rail 9-3 is provided above the lower solid waste storage bin 9-1. Both ends of the lower material receiving rail 9-2 and the lower solid waste dumping rail 9-3 are connected to the underground track 5-1.

[0046] In this embodiment, a downhill power generation area 10 is provided on the downhill track 5-4, and the downhill power generation area 10 is connected to the battery. The downhill power generation area 10 includes a plurality of power generation units arranged on the downhill track 5-4, as shown in the attached diagram. Figure 2 As shown, the power generation unit includes a box body 11, which is embedded in the track and does not interfere with the loading train 1. At least one group of power generation components is set in the box body 11, and a support base plate 12 is set below the power generation component. The support base plate 12 is slidably connected to the bottom surface of the box body 11 through a slide rail. The end surface of the support base plate 12 is connected to the output end of the hydraulic cylinder 13, and the cylinder body of the hydraulic cylinder 13 is connected to the bottom surface of the box body 11. The power generation component includes a generator 14, a speed increaser 15, and a generator wheel 16. The generator wheel 16 drives the speed increaser 15 to rotate through the rotating shaft. The speed increaser 1 The output end of the power generator 14 is connected to the generator 14, which is connected to the battery. When the power generation unit is in operation, the hydraulic cylinder 13 drives the support base plate 12 to slide, thereby driving the generator wheel 16 of the power generation element to press against the drive plate of the loading train 1. When the loading train 1 loaded with solid waste ore slides from the ground track 5-3 to the downhill track 5-4, the drive plate of the loading train 1 drives the generator wheel 16 to rotate. The generator wheel 16 drives the generator 14 through the speed increase box 15, thereby converting the gravitational potential energy into mechanical energy, and then converting the mechanical energy into electrical energy for energy storage.

[0047] In this embodiment, an intelligent turnout 17 is provided at the intersection of the tracks. The track connection modes of the switch 18 of the intelligent turnout 17 are different. The tracks are formed into a loading and transport line, a gravity energy storage transport line, a power generation transport line, and a transport-power generation compatible line. Each transport line corresponds to a different loading train operation mode, namely: loading and transport mode, gravity energy storage transport mode, power generation transport mode, and transport-power generation compatible mode, which are as follows:

[0048] Loading and transportation line: When the main control center controls the track to enter the loading and transportation mode, the intelligent switch 17 connects the loading and transportation line. Specifically: the underground loading station 2 is connected to the underground track 5-1, and one end of the underground track 5-1 is connected to the uphill track 5-2, the ground track 5-3, the unloading and dumping track 6 in sequence, and then through a section of the ground track 5-3 to the downhill track 5-4, and then connected to the other end of the underground track 5-1 to the entrance of the underground loading station 2 to form a loading and transportation line.

[0049] When the transportation system is working, the loading train 1 loads materials from the underground loading station 2 and transports them to the ground through the underground track 5-1 and the uphill track 5-2, and then tilts the materials along the ground track 5-3 through the unloading dumping track 6 to the ground unloading station 3 to complete unloading. In the loading and transportation mode, no discharge and energy storage work is performed. After the train completes unloading, it enters the entrance end of the underground loading station 2 along the ground track 5-3, the downhill track 5-4, and the underground track 5-1, ready to enter the next cycle. In this mode, the downhill power generation area of ​​the downhill track 5-4 does not work.

[0050] Gravity energy storage transport line: The exit of the lower receiving track 9-2 is connected to the underground track 5-1, the uphill track 5-2, and the ground track 5-3 in sequence, then enters the upper solid waste dumping track 7-3 and connects to the ground track 5-3, and then connects to the downhill track 5-4 and the underground track 5-1 to the entrance of the lower receiving track 9-2 to form a gravity energy storage transport line;

[0051] Gravity energy storage transport mode. During the low electricity consumption period, when the loading and transport line is not operating, the main control center controls the track and the loading train 1 to enter the gravity energy storage transport mode. The loading train 1 is ready to enter the gravity energy storage transport line in turn. The loading train 1 enters the lower material receiving track 9-2. The automatic discharge port 19 of the lower solid waste energy storage bin 9-1 puts the mineral material in the bin into the loading train 1 carriage. After the loading train 1 completes the loading, it enters the underground track 5-1 in sequence, and enters the upper solid waste dumping station through the underground track, the 5-1 uphill track 5-2 and the ground track 5-3. Track 7-3, pour the solid waste into the upper energy storage solid waste bin 7-1 (solid waste minerals are transported from the lower energy storage solid waste bin 9-1 to the upper energy storage solid waste bin 7-1. During the low electricity consumption period, when the electricity price is low, the gravitational potential energy is stored so that the stored gravitational potential energy can be converted into electrical energy for power generation during the subsequent peak electricity consumption period). Then, the vehicle passes through the ground track 5-3 empty to enter the downhill track 5-4 and the underground track 5-1, and enters the lower material receiving track 9-2 to enter the next cycle. In this transportation mode, the downhill power generation area 10 of the downhill track does not work.

[0052] Power generation and transportation line: The outlet end of the upper material receiving track 7-2 is connected in sequence to the ground track 5-3, the downhill track 5-4 downhill power generation area 10, the underground track 5-1, and then enters the lower solid waste dumping track 9-3 and connects to the underground track 5-1, and passes through the uphill track 5-2 to the inlet end of the upper material receiving track 7-2 to form a power generation and transportation line.

[0053] In power generation and transportation mode, the main control center controls the track to enter the power generation and transportation mode. Under the control of the main control center, the intelligent turnout 17 connects the power generation and transportation line. The loading train 1 sequentially enters the upper receiving track 7-2. The upper solid waste energy storage bin 7-1 unloads the solid waste mineral material into the train compartment, and then drives out and sequentially enters the downhill track 5-4 to enter the downhill power generation area 10. When the main control center controls the track to enter the power generation and transportation mode, the downhill power generation area 10 starts working. Due to its own weight, the train slides from top to bottom on the downhill track 5-4. The downhill power generation area 10 is controlled by the main control center. The hydraulic cylinder 13 drives the supporting bottom plate 12 to slide, so that the generating wheel 16 of the generating unit is aligned with the loading train. The driving plate of vehicle 1 is tightened, and the driving plate of the loaded train 1 drives the generator wheel 16 to rotate. The generator wheel 16 drives the generator 14 to rotate through the speed increase box 15 to generate electricity. The generator 14 is connected to the storage device, thereby converting mechanical energy into electrical energy for storage. A speed control station is also provided in the downhill power generation area 10. The speed control station can control the speed to remain within a certain range. After power generation is completed, the train enters the underground track 5-1, and then enters the lower solid waste dumping track 9-3 to dump the solid waste mineral material into the lower solid waste energy storage bin 9-1. After that, the empty train passes through the underground track 5-1, the uphill track 5-2 and the ground track 5-3 to enter the upper receiving track 7-2 and enter the next cycle.

[0054] Transport-power generation compatible line: Loading train 1 loads materials from underground loading station 2, unloads materials via ground track 5-3, uphill track 5-2, and unloading dumping track 6, then enters upper receiving track 7-2 via ground track 5-3 and transport-power generation conversion track 8, receives materials in power generation mode, exits upper receiving track 7-2, passes downhill power generation area 10 of downhill track 5-4, converts gravitational potential energy into mechanical energy, generates electricity and stores energy in the accumulator, and after power generation, loads train 1 via underground track 5-1 and enters lower solid waste dumping track 9-3, dumps solid waste bulk materials into lower solid waste energy storage bin 9-1 in the goaf, then enters underground track 5-1 and returns to underground loading station 2, forming a transport-power generation compatible line.

[0055] Transport-power generation compatible mode, the track enters the transport-power generation compatible mode, the main control center controls the intelligent switch to connect the transport-power generation compatible line, the train loads materials from the underground loading station 2 and transports them to the ground through the uphill track 5-2, and then transports them along the ground track 5-3 to the unloading and dumping track 6 to complete unloading, and enters the upper receiving track 7-2 through the transport-power generation conversion track. After completing the loading of the upper solid waste energy storage bin 7-1, it enters the downhill power generation area 10 of the downhill track 5-4 to realize the conversion of gravitational potential energy into mechanical energy, and then the generator 14 converts the mechanical energy into electrical energy for energy storage. After completing power generation, it enters the underground track 5-1, and then dumps the solid waste minerals into the lower solid waste energy storage bin 9-1 through the lower solid waste dumping track 9-3. After unloading, it enters the underground track 5-1 empty-handed to the feeding port of the underground loading station 2 to enter the next cycle.

[0056] The main control center sets four transportation modes for loading trains, namely: loading transportation mode, gravity energy storage transportation mode, power generation transportation mode, and transportation-power generation compatible mode. The loading train enters the corresponding mode line transportation under the mode selection control of the main control center.

[0057] In this embodiment, the lower solid waste energy storage bin 9-1 is transformed from the goaf, and the upper solid waste energy storage bin 7-1 and the lower solid waste energy storage bin 9-1 are provided with multiple automatic discharge ports 19 at the loading station. The automatic discharge ports 19 are provided with valves. When the loading train 1 enters the loading station, a contact sensor is provided at the loading station. After the contact sensor senses that the train is in place, it feeds back to the main control center. The main control center controls the valve to automatically open and discharge the material. When the train compartment is full, the valve automatically closes.

[0058] In this embodiment, the loading train 1 includes a car body, a train IMU, a train coding wheel, a front RFID, a rear RFID, a train controller and a train wireless module. The train IMU, the train coding wheel and the front RFID are all set at the front of the car body, and the rear RFID is set at the rear of the car body. The train IMU, the train coding wheel, the front RFID, the rear RFID and the train wireless module are all wirelessly connected to the train controller. The train controller communicates with the main control center via the train wireless module. The train IMU is used to obtain acceleration and then calculate the speed of the loading train. The train coding wheel is used to calculate the train position. The rear RFID is used to mark the passed drive station 4. The loading train 1 has completed its journey and the corresponding drive station 4 has stopped operating.

[0059] The train IMU and train encoder wheel can provide real-time feedback on the speed and position of the loading train. The starting point of the loading train 1 entering a certain position can be accurately obtained through the front RFID. For example, when entering the upper / lower material connection rail 7-2 / 9-2, the train entering the upper / lower material connection rail 7-2 / 9-2 information can be obtained. The rear RFID can obtain the end point of the loading train 1 passing through a certain position. For example, when the loading train 1 passes through the drive station 4, the rear RFID is scanned by the drive station 4. The drive station 4 can stop the operation of the drive station 4 according to its rear RFID information and wait for the next train to enter.

[0060] In this embodiment, the drive station 4 includes a drive mechanical structure, an RFID sensor 1, a drive station controller and a drive station wireless module. The RFID sensor 1 is electrically connected to the drive station controller, and the drive station controller is wirelessly connected to the main control center through the drive station wireless module. The drive station controller controls the rotation of the drive mechanical structure. The RFID sensor 1 is wirelessly connected to the front RFID and the rear RFID respectively. When the front RFID of the loaded train is scanned by the RFID sensor 1 of the drive station, the RFID sensor 1 of the drive station feeds back the signal to the main control center through the drive station controller. After the main control center obtains the signal of the RFID sensor 1 of the drive station and obtains the train speed and position information, it controls the speed of the drive station through the drive station 4 controller. The intelligent control method of the drive station 4 in this embodiment is consistent with the applicant's Chinese patent method with application number 202310032662.6, and will not be repeated here.

[0061] In this embodiment, when the loading train 1 enters the loading and transportation mode and the gravity energy storage transportation mode, the downhill power generation area is in a normally closed state. When the loading train 1 enters the power generation and transportation mode and the transportation-power generation compatible mode, the main control center controls the downhill power generation area 10 to start working.

[0062] In actual application, the loading train 1 travels at a constant speed on the track. N upper connecting rails 7-2 and N lower connecting rails 9-2 are provided. The entrance end of the upper connecting rail / lower connecting rail 7-2 / 9-2 is connected to a multi-track intelligent turnout. The intelligent turnout 17 adopts the most conventional design, which includes a turnout controller 20 and a switch 18. The switch 18 includes a point rail 18-1 and a translation drive 18-2. The turnout controller 20 controls the translation drive 18-2 to translate the point rail 18-1, thereby switching the track path. When the switch 18 includes a set of point rails 18-1 and a set of translation drive 18-2, it is suitable for switching between two tracks. Figure 3 This is a schematic diagram of the daily two-track intelligent turnout structure.

[0063] Multi-track intelligent turnout, i.e. more than two tracks, including a multi-track turnout controller, a multi-track switch, and an RFID sensor. The multi-track turnout controller is wirelessly connected to the main control center, and the multi-track switch, the RFID sensor and the multi-track turnout controller are electrically connected, as shown in the attached Figure 4 This is a schematic diagram of the structure of a three-track intelligent turnout, which includes two sets of point rails 18-1 and two sets of translational drive members 18-2. One set of point rails 18-1 translates to achieve switching between the two tracks. The two sets of point rails 18-1 are arranged front and back. One set of point rails 18-1 achieves switching and connection between the lower track and the middle track, and one set of point rails 18-1 achieves switching and connection between the upper track and the middle track. This multi-track intelligent turnout is a conventional design scheme in railway transportation.

[0064] The above is the specific structural design in this embodiment.

[0065] In this embodiment, the multi-track intelligent turnout includes a single-track material transport mode and a multi-track material transport mode, and the specific control is as follows:

[0066] The upper connecting rail / lower connecting rail of each road are numbered from 1 to N according to their positions, and the track numbers and corresponding position information of the upper connecting rail / lower connecting rail are stored in the multi-track switch controller;

[0067] When an upper material receiving rail / lower material receiving rail is in the waiting state, the main control center controls the multi-track intelligent switch to enter the single-way material receiving and transportation mode;

[0068] When multiple upper material receiving rails / lower material receiving rails are in the waiting state, the main controller center controls the multi-track intelligent switch to enter the multi-way material receiving and transportation mode.

[0069] In the single-track material connection and transportation mode, that is, when one upper material connection rail / lower material connection rail is in a waiting state, the track number of the upper material connection rail / lower material connection rail is obtained, and the track number information is manually input to the main control center. When the main control center controls the loading train to enter the power generation transportation mode or the transportation-power generation compatible mode, the main control center feeds back the obtained track number information to the multi-track switch controller on the upper material connection rail, and the multi-track switch controller on the upper material connection rail controls the corresponding multi-track switch to connect the upper material connection rail with its track number to the track line; when the main control center controls the loading train to enter the gravity energy storage transportation mode, the main control center feeds back the obtained track number information to the multi-track switch controller on the lower material connection rail, and the multi-track switch controller on the lower material connection rail controls the corresponding multi-track switch to connect the lower material connection rail with its track number to the track line;

[0070] In the multi-track material connection and transportation mode, when N upper connecting rails / lower connecting rails are in a waiting state, the track number information is manually input to the main control center, and the upper connecting rail / lower connecting rail with any track number is selected as the initial track. When the main control center controls the loading train to enter the power generation transportation mode or the transportation-power generation compatible mode, the main control center feeds back the initial track number to the multi-track switch controller, and the multi-track switch controller controls the corresponding multi-track switch to connect the initial track of the upper connecting rail. When the loading train enters the upper connecting rail of the initial track, the RFID sensor scans the rear of the train. RFID, RFID sensor 2 sends the information that the loading train has passed through the parking space to the multi-track switch controller. After receiving the RFID sensor 2, the multi-track switch controller controls the multi-track switch to close the initial track and connect the multi-track switch to the next upper receiving rail, and circulates the connections in sequence until the work is completed; when the main control center controls the loading train to enter the gravity energy storage transportation mode, the main control center feeds back the initial track number to the multi-track switch controller on the lower receiving rail. The working control method of the multi-track switch controller on the lower receiving rail is the same as that of the multi-track switch controller on the upper receiving rail.

[0071] When the loading train enters any of the gravity energy storage transport mode, power generation transport mode, and transport-power generation compatible mode, in order to ensure that the first car has just finished receiving the material and is ready to leave, the N+1 car enters the same upper receiving rail / lower receiving rail of the first car to load the material without collision. The main control center controls the initial departure distance of the loading train to X based on the number of upper receiving rails / lower receiving rails, which is N.

[0072] When the loading train enters the upper receiving rail / lower receiving rail, it moves at a constant speed under the control of the driving station, that is, the speed on the transport track is V 运 , the material receiving speed of the loading train on the material receiving track is: V 接 , the length of the loading train is: L, then when the front of the first car enters the upper receiving rail / lower receiving rail, the distance between it and the N+1 car is S, such as Figure 6 As shown, S = N*X+(N-1)*L,

[0073] The time for the loading train to enter the upper receiving rail / lower receiving rail to receive materials is t0. When the first loading train enters the upper receiving rail / lower receiving rail to receive materials until the receiving is completed, the receiving speed is V 接 , that is, the distance traveled by the first vehicle on the upper receiving rail / lower receiving rail within time t0 is: V 接 *t0,

[0074] The N+1th vehicle travels on the track at a speed of V 运 , the track travel distance in time t0 is V 运 *t0;

[0075] After the first loading train enters the upper receiving rail / lower receiving rail and finishes receiving materials, the distance between the first loading train and the N+1 train when it is ready to enter the receiving rail is reduced by S', S'=V 运 *t0-V 接 *t0, in order to reduce the waiting time between the first car and the N+1 car, S≥S', so,

[0076] N*X+(N-1)*L≥V 运 *t0-V 接 *t0

[0077] Finally, when the number of upper and lower connecting rails is N, the master controller controls the initial departure distance of the loading train to be:

[0078] X≥(V 运 -V 接 )*t0 / N-(1-1 / N)*L.

[0079] The present invention maximizes the advantage of the height difference of the existing loading and transportation lines, and utilizes the solid waste ore in the mine goaf on the basis of the existing tracks to form gravity energy storage and gravity power generation lines, and relies on the existing loading trains for gravity energy storage transportation and power generation. Whether it is the tracks, gravity blocks, or energy storage stations, they all utilize the existing conditions and facilities of the mine, greatly reducing the construction cost of the gravity energy storage power station. At the same time, on the existing transshipment and transportation lines, transportation and power generation are integrated. Gravity energy storage transportation is carried out during non-working or low electricity consumption periods. During working and peak electricity consumption periods, the transportation-power generation compatible mode or power generation and transportation mode can be entered, effectively alleviating the peak electricity consumption pressure.

[0080] The basic principles, main features, and advantages of the present invention are shown and described above. Those skilled in the art should understand that the present invention is not limited to the above embodiments. The above embodiments and descriptions are merely illustrative of the principles of the present invention. Various changes and modifications may be made to the present invention without departing from the spirit and scope of the present invention, and such changes and modifications fall within the scope of the invention as claimed.

Claims

1. A mine solid waste gravity energy storage and bulk material rail transportation control system, comprising a loading train, an underground loading station, a ground unloading station, a track, and a central control center. Several drive stations are installed on the track. The loading train travels on the track driven by the drive stations. The track is connected to an uphill track, a ground track, a unloading dumping track at one end of the underground track, and then to a downhill track through a section of the ground track before connecting to the other end of the underground track to form a loading and transportation line. The characteristics of the track are as follows: An upper solid waste energy storage bin is provided in the area between the ground rails, an upper material receiving rail is provided below the upper solid waste energy storage bin, and an upper solid waste dumping rail is provided above the upper solid waste energy storage bin. Both ends of the upper material receiving rail and the upper solid waste dumping rail are connected to the ground rails, and the outlet end of the unloading dumping rail and the inlet end of the upper material receiving rail are connected to the transport-power generation conversion rail; A downhill power generation area is provided on the downhill rail, and the downhill power generation area is connected to the accumulator; A lower solid waste energy storage bin is provided in the underground goaf of the mine, a lower material receiving rail is provided below the lower solid waste energy storage bin, and a lower solid waste dumping rail is provided above the lower solid waste energy storage bin, and both ends of the lower material receiving rail and the lower solid waste dumping rail are connected to the underground track; The outlet end of the upper receiving rail is connected in sequence to the ground rail, the downhill power generation area of ​​the downhill rail, the underground rail, and then enters the lower solid waste dumping rail and connects to the underground rail, and then passes through the uphill rail to the inlet end of the upper receiving rail to form a power generation and transportation line; The outlet end of the lower receiving rail is connected to the underground track, the uphill track, and the ground track in sequence to enter the upper solid waste dumping track and then connect to the ground track, and then connect to the inlet end of the lower receiving rail through the downhill track and the underground track to form a gravity energy storage transportation line; The loading train loads materials from the underground loading station, unloads materials through the ground track, uphill track, and unloading dumping track, enters the upper receiving track through the ground track and the transportation-power generation conversion track, receives materials in the power generation mode, and then exits the upper receiving track and passes through the downhill power generation area of ​​the downhill track to convert the gravitational potential energy into mechanical energy for power generation and energy storage in the accumulator. After power generation, the device train enters the lower solid waste dumping track through the underground track to dump the solid waste bulk materials into the lower solid waste energy storage bin in the goaf, and then enters the underground track back to the loading station, forming a transportation-power generation compatible line. The general control center sets four transportation modes for loading trains, namely: loading transportation mode, gravity energy storage transportation mode, power generation transportation mode, and transportation-power generation compatible mode. The loading train enters the corresponding mode line transportation under the mode selection control of the general control center.

2. A mine solid waste gravity energy storage and bulk material rail transportation control system according to claim 1, characterized in that: Intelligent switches are provided at the intersections of the tracks. The intelligent switches include a switch controller and a switch. The switch controller controls the switch to perform track conversion and connection. When the main control center controls the loading train to enter the corresponding transportation mode, the intelligent switches on the transportation line corresponding to the transportation mode connect the transportation lines.

3. The mine solid waste gravity energy storage and bulk material rail transportation control system according to claim 1, characterized in that: When the loading train enters the loading and transport mode or the gravity energy storage transport mode, the downhill power generation area is in a normally closed state. When the loading train enters the power generation and transport mode or the transport-power generation compatible mode, the main control center controls the downhill power generation area to start working.

4. The mine solid waste gravity energy storage and bulk material rail transportation control system according to claim 1, characterized in that: The downhill power generation area includes several power generation units arranged on the downhill rail, and the power generation unit includes a box body, which is embedded in the track and does not interfere with the loading train. At least one group of power generation components is arranged in the box body, and a support base plate is arranged under the power generation component. The support base plate is slidably connected to the bottom surface of the box body through a slide rail, and the end surface of the support base plate is connected to the output end of the hydraulic cylinder. The hydraulic cylinder body is connected to the bottom surface of the box body. The power generation component includes a generator, a speed increaser, and a generator wheel. The generator wheel drives the speed increaser to rotate through a rotating shaft. The output end of the speed increaser is connected to the generator, and the generator is connected to the battery. When the power generation unit is in working state, the hydraulic cylinder drives the support base plate to slide, thereby driving the power generation wheel of the power generation component to be pressed toward the drive plate of the loading train.

5. The mine solid waste gravity energy storage and bulk material rail transportation control system according to claim 1, characterized in that: The loading train includes a car body, a train IMU, a train coding wheel, a front RFID, a rear RFID, a train controller and a train wireless module. The train IMU, the train coding wheel and the front RFID are all set at the front of the car body, and the rear RFID is set at the rear of the car body. The train IMU, the train coding wheel, the front RFID, the rear RFID and the train wireless module are all wirelessly connected to the train controller. The train controller communicates with the main control center via the train wireless module. The train IMU is used to obtain acceleration and then calculate the speed of the loading train. The train coding wheel is used to calculate the train position. The rear RFID is used to mark the passed drive station. The loading train has completed its journey and the corresponding drive station has stopped operating.

6. A mine solid waste gravity energy storage and bulk material rail transportation control system as claimed in claim 5, characterized in that: The loaded train travels at a constant speed on the track. There are N upper material receiving rails and N lower material receiving rails. The entrance ends of the upper material receiving rails / lower material receiving rails are connected to a multi-track intelligent turnout. The multi-track intelligent turnout includes a multi-track turnout controller, a multi-track switch, and two RFID sensors. The multi-track turnout controller is wirelessly connected to the main control center, and the multi-track switch, the second RFID sensor and the multi-track turnout controller are electrically connected.

7. A mine solid waste gravity energy storage and bulk material rail transportation control system according to claim 6, characterized in that: The upper connecting rail / lower connecting rail of each road are numbered from 1 to N according to their positions, and the track numbers and corresponding position information of the upper connecting rail / lower connecting rail are stored in the multi-track switch controller; The multi-track intelligent turnout includes a single-track material transport mode and a multi-track material transport mode. When only one upper material receiving rail / lower material receiving rail is in the waiting state, the main control center controls the multi-track intelligent switch to enter the single-way material receiving and transportation mode; When multiple upper material receiving rails / lower material receiving rails are in the waiting state, the main controller center controls the multi-track intelligent switch to enter the multi-way material receiving and transportation mode.

8. A mine solid waste gravity energy storage and bulk material rail transportation control system as claimed in claim 7, characterized in that: When the single-track material receiving and transport mode is used, the track number of the upper material receiving rail / lower material receiving rail in the working state is obtained, and the track number information is manually input into the main control center. When the main control center controls the loading train to enter the power generation transport mode or the transport-power generation compatible mode, the main control center feeds back the obtained track number information to the multi-track switch controller on the upper material receiving rail, and the multi-track switch controller on the upper material receiving rail controls the multi-track switch to connect the upper material receiving rail with its track number with the track line; when the main control center controls the loading train to enter the gravity energy storage transport mode, the main control center feeds back the obtained track number information to the multi-track switch controller on the lower material receiving rail, and the multi-track switch controller on the lower material receiving rail controls the corresponding multi-track switch to connect the lower material receiving rail with its track number with the track line.

9. A mine solid waste gravity energy storage and bulk material rail transportation control system according to claim 8, characterized in that: When the multi-way material connection and transportation mode is used, the track number of the upper material connection rail / lower material connection rail in the working state is obtained, and the track number information is manually input to the main control center. The upper material connection rail / lower material connection rail of any track number among the above track numbers is selected as the initial track. When the main control center controls the loading train to enter the power generation transportation mode or the transportation-power generation compatible mode, the main control center feeds back the initial track number to the multi-track switch controller, and the multi-track switch controller controls the corresponding multi-track switch to connect the initial track of the upper material connection rail. When the loading train enters the upper material connection rail of the initial track, the RFID sensor The second RFID sensor scans the RFID at the rear of the train, and the second RFID sensor sends the information that the loading train has passed through the parking space to the multi-track switch controller. After receiving the second RFID sensor, the multi-track switch controller controls the multi-track switch to close the initial track, and connects the multi-track switch to the next upper receiving rail, and circulates the connections in sequence until the work is completed; when the main control center controls the loading train to enter the gravity energy storage transportation mode, the main control center feeds back the initial track number to the multi-track switch controller on the lower receiving rail, and the working control method of the multi-track switch controller on the lower receiving rail is consistent with the control method of the multi-track switch controller on the upper receiving rail.

10. A mine solid waste gravity energy storage and bulk material rail transportation control system according to claim 9, characterized in that: When the loading train enters any of the gravity energy storage transport mode, power generation transport mode, and transport-power generation compatible mode, in order to ensure that the first car has just finished receiving the material and is ready to leave, the N+1 car enters the same upper receiving rail / lower receiving rail of the first car to load the material without collision. The main control center controls the initial departure distance of the loading train to X based on the number of upper receiving rails / lower receiving rails, which is N. When the loading train enters the upper receiving rail / lower receiving rail, it moves at a constant speed under the control of the driving station, that is, the speed on the transport track is V 运 , the material receiving speed of the loading train on the material receiving track is: V 接 , the length of the loading train is: L, then when the front of the first car enters the upper receiving rail / lower receiving rail, the distance between it and the N+1 car is S, S=N*X+(N-1)*L, The time for the loading train to enter the upper receiving rail / lower receiving rail to receive materials is t0. When the first loading train enters the upper receiving rail / lower receiving rail to receive materials until the receiving is completed, the receiving speed is V 接 , that is, the distance traveled by the first vehicle on the upper receiving rail / lower receiving rail within time t0 is: V 接 *t0, The N+1th vehicle travels on the track at a speed of V 运 , the track travel distance in time t0 is V 运 *t0; After the first loading train enters the upper receiving rail / lower receiving rail and finishes receiving materials, the distance between the first loading train and the N+1 train when it is ready to enter the receiving rail is reduced by S', S'=V 运 *t0-V 接 *t0, in order to reduce the waiting time between the first car and the N+1 car, S≥S', so, N*X+(N-1)*L≥V 运 *t0-V 接 *t0 Finally, when the number of upper and lower connecting rails is N, the master controller controls the initial departure distance of the loading train to be: X≥(V 运 -V 接 )*t0 / N-(1-1 / N)*L。

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