Pipe belt machine energy recycling device and control method

Abstract

According to the pipe belt conveyor energy recycling device and the control method, the energy of the downlink working condition is recycled, stored and utilized, the energy consumption of the pipe belt conveyor can be reduced, and the greenness is improved. The tubular belt conveyor energy recycling device comprises a supporting frame, a tubular conveying belt, a flywheel energy storage assembly and a control module. The tubular conveying belt is supported on the supporting frame. The flywheel energy storage assembly comprises a flywheel body, a clutch and a gear box, the flywheel energy storage assembly is located on one side of the supporting frame, one end of the clutch is connected with the flywheel body, the other end of the clutch is connected with one end of the gear box, and the other end of the gear box is connected with the flywheel body. The other end of the gear box is connected with a transmission drum shaft for transmitting the tubular conveying belt; the control module is electrically connected with the flywheel energy storage assembly.

Description

Technical Field

[0001] This application relates to the field of conveyor belt technology, specifically to an energy recovery and utilization device and control method for a conveyor belt. Background Technology

[0002] Tubular belt conveyors are conveyors that transport bulk materials enclosed in tubular conveyor belts and are used in various logistics and transportation scenarios. When the drive roller shaft transports the tubular conveyor belt, a significant amount of energy is wasted during the downward movement of the tubular conveyor belt. Related technical solutions do not address the recovery, storage, and utilization of energy during this downward movement, resulting in the drawbacks of high energy consumption and insufficient environmental friendliness in tubular belt conveyors.

[0003] Therefore, how to provide a control method that can realize the energy recovery and utilization of conveyor belts to overcome or alleviate the above-mentioned defects remains a technical problem that needs to be solved by those skilled in the art. Summary of the Invention

[0004] The purpose of this application is to provide a device and control method for energy recovery and utilization of a conveyor belt, which can recover, store and utilize energy during downlink operation, thereby reducing the energy consumption of the conveyor belt and improving its environmental friendliness.

[0005] To achieve the above objectives, this application provides an energy recovery and utilization device for a tubular conveyor, including a support frame, a tubular conveyor belt, a flywheel energy storage component, and a control module, wherein the tubular conveyor belt is supported on the support frame; The flywheel energy storage assembly includes a flywheel body, a clutch, and a gearbox. The flywheel energy storage assembly is located on one side of the support frame. One end of the clutch is connected to the flywheel body, and the other end of the clutch is connected to one end of the gearbox. The other end of the gearbox is connected to the drive roller shaft that drives the tubular conveyor belt. The control module is electrically connected to the flywheel energy storage assembly.

[0006] With the above structure, the gearbox of the flywheel energy storage component is fixedly connected to the drive roller shaft of the tubular conveyor belt. When the tubular conveyor belt is in a downward working condition, the material on the tubular conveyor belt has gravitational potential energy, which drives the drive roller shaft to rotate. The drive roller shaft transmits power to the gearbox, which increases the speed and then transmits it to the clutch. The control module controls the clutch to engage, and the power is further transmitted to the central shaft of the flywheel body, driving the flywheel body to rotate at high speed, converting the gravitational potential energy into the rotational kinetic energy of the flywheel body and storing it. When the tubular conveyor belt needs additional power, the control module controls the clutch to engage again, and the flywheel body releases the rotational kinetic energy, which is transmitted to the clutch through the central shaft, and then transmitted to the drive roller shaft through the gearbox to adjust the speed, providing auxiliary power for the operation of the tubular conveyor belt and realizing energy recovery and reuse.

[0007] Optionally, the energy recovery and utilization device for the tubular conveyor further includes a DC converter and a capacitor buffer module. The DC converter is electrically connected to the control module and the main motor that drives the tubular conveyor belt, respectively; the capacitor buffer module is electrically connected to the DC converter.

[0008] Optionally, the belt conveyor energy recovery and utilization device further includes a photovoltaic module and a controller. The photovoltaic module includes a photovoltaic panel located on top of the support frame. The controller is electrically connected to the photovoltaic panel and the main motor, and is also electrically connected to the capacitor buffer module.

[0009] Optionally, the photovoltaic panel rotates relative to the top of the support frame; the belt conveyor energy recovery and utilization device further includes a detection module, the detection module includes a photosensitive sensor, the photosensitive sensor is fixed to one side of the photovoltaic panel, and the photosensitive sensor is electrically connected to the control module.

[0010] Optionally, the photovoltaic module includes a first rotating component and a second rotating component disposed opposite to each other. The first rotating component includes a first threaded rod, a first threaded block, and a first support rod. The first threaded rod is inserted into the first threaded block, one end of the first support rod is fixed to the photovoltaic panel, and the other end of the first support rod is rotatably mounted on the first threaded block. The second rotating component includes a second threaded rod, a second threaded block, and a second support rod. The second threaded rod is inserted into the second threaded block, one end of the second support rod is fixed to the photovoltaic panel, and the other end of the second support rod is rotatably mounted on the second threaded block. The photovoltaic module also includes a transmission unit, which includes sprockets and a chain. The two sprockets are respectively mounted on the first threaded rod and the second threaded rod, and the two sprockets are connected by the chain drive.

[0011] This application also provides a control method for energy recovery and utilization of a tubular conveyor, based on any of the tubular conveyor energy recovery and utilization devices described in this application, wherein the control module monitors the tubular conveyor belt in a downward working condition and controls the flywheel energy storage component to start.

[0012] Optionally, when the load of the belt conveyor energy recovery and utilization device suddenly increases during the downward operation, the control module controls the flywheel body to release kinetic energy.

[0013] Optionally, when the belt conveyor energy recovery and utilization device is in the start-up or upward working condition with a sudden increase in load, the control module controls the clutch to close, and the flywheel body releases kinetic energy.

[0014] This application also provides a control method for energy recovery and utilization of a tubular conveyor, based on the energy recovery and utilization device of the tubular conveyor described in any one of the third to sixth claims, wherein the control module monitors the tubular conveyor belt in braking condition and controls the capacitor buffer module to store energy.

[0015] Optionally, the control module adjusts the tilt angle of the photovoltaic panel, and the controller controls the photovoltaic panel to transmit electrical energy to the main motor; If there is remaining power after the power is transmitted to the main motor, and the power of the capacitor buffer module is less than a preset value, the remaining power is transmitted to the capacitor buffer module; if there is remaining power after the power is transmitted to the main motor, and the power of the capacitor buffer module is not less than the preset value, the remaining power is transmitted to the backup battery pack. Attached Figure Description

[0016] Figure 1 This is a schematic diagram of the structure of a conveyor belt energy recovery and utilization device according to an embodiment of this application; Figure 2 for Figure 1 A magnified view of a section at point A in the middle; Figure 3 for Figure 1 Schematic diagram of the central electrical control box; Figure 4 for Figure 1 A schematic diagram of the structure of the central support component; Figure 5 This is a circuit diagram of a conveyor energy recovery and utilization device according to an embodiment of this application; Figure 6 This is a flowchart of a control method for energy recovery and utilization of a conveyor belt in an embodiment of this application.

[0017] The attached figures are labeled as follows: 1-Energy recovery and utilization device for conveyor belt conveyors; 11-Support assembly; 111-Support frame; 111a-Through hole; 111b-Slotted opening; 112-Idler roller; 113-Connecting plate; 12-Tube Conveyor Belt; 13-Flywheel energy storage assembly; 131-Flywheel body; 132-Clutch; 133-Gearbox; 14-Electrical control box; 141-Control module; 142-DC converter; 143-Capacitor buffer module; 144-Controller; 145-Backup power supply interface; 15-Photovoltaic module; 151-Photovoltaic panel; 152-Fixing base; 153-First rotating shaft; 154-First motor; 155-First rotating assembly; 1551-First threaded rod; 1552-First threaded block; 1553-First support rod; 156-Second rotating assembly; 157-Transmission unit; 1571-Sprocket; 1572-Chain; 161 - Photosensitive sensor; 162 - Torque sensor; 163 - Speed ​​sensor; 17-Monitoring Module; 18 - Backup battery pack. Detailed Implementation

[0018] To enable those skilled in the art to better understand the technical solutions of this application, the application will be further described in detail below with reference to the accompanying drawings and specific embodiments.

[0019] In the description of the embodiments of this application, it should be noted that the orientation or positional relationship indicated by "up", "down", "left", "right", "front", "back", etc. is based on the accompanying drawings and is only for the convenience of description, and is not intended to indicate or imply that the device referred to must have a specific orientation, or be constructed and operated in a specific orientation, and therefore should not be construed as a limitation of this application.

[0020] like Figure 1 As shown, Figure 1 This is a schematic diagram of the structure of a conveyor energy recovery and utilization device according to an embodiment of this application.

[0021] This application provides an energy recovery and utilization device 1 for a tubular conveyor belt system, including a support frame 111 and a tubular conveyor belt 12, with the tubular conveyor belt 12 supported on the support frame 111. This embodiment does not limit the shape of the support frame 111 or the number of tubular conveyor belts 12. For example, in this embodiment, the support frame 111 is a rectangular plate and contains two tubular conveyor belts 12, which can be configured according to the actual application scenario. The support frame 111 has two through holes 111a along the vertical direction, and the two tubular conveyor belts 12 are respectively located in the two through holes 111a. To facilitate support of the tubular conveyor belt 12, multiple slots 111b are evenly distributed along the circumference on the inner wall of the through hole 111a. Multiple idlers 112 are installed in the multiple slots 111b. The idlers 112 are tangent to the surface of the tubular conveyor belt 12 and support the operation of the tubular conveyor belt 12 through rolling friction, reducing the friction of the tubular conveyor belt 12 during transportation. At the same time, the tubular conveyor belt 12 is supported, allowing the tubular conveyor belt 12 to wrap the bulk material in a stable tubular shape.

[0022] It is worth noting that, in this embodiment, the energy recovery and utilization device 1 of the conveyor belt also includes a flywheel energy storage component 13. The flywheel energy storage component 13 includes a flywheel body 131, a clutch 132, and a gearbox 133. The flywheel energy storage component 13 is located on one side of the support frame 111. One end of the clutch 132 is connected to the flywheel body 131, and the other end of the clutch 132 is connected to one end of the gearbox 133. The other end of the gearbox 133 is connected to the drive roller shaft of the transmission tubular conveyor belt 12. This embodiment does not limit the connection method between the gearbox 133 and the drive roller shaft. A vertical drive shaft can be connected between the drive roller shaft and the gearbox 133 to ensure power transmission between the drive roller shaft and the gearbox 133.

[0023] A first direction is defined as the axial extension direction of the tubular conveyor belt 12, which can also be understood as the transport direction of the tubular conveyor belt 12. Specifically, a clutch 132 is provided on one side of the support frame 111 along the first direction and above the tubular conveyor belt 12. The input end of the gearbox 133 is connected to the vertical drive shaft via a coupling, and then the vertical drive shaft is connected to the drive drum shaft via a coupling. The output end of the gearbox 133 is connected to one end of the clutch 132, and the other side of the clutch 132 is fixedly connected to the central shaft of the flywheel body 131. The flywheel energy storage component 13 converts the gravitational potential energy generated by the tubular conveyor belt 12 during the transport process into rotational kinetic energy for storage. When the tubular conveyor belt 12 starts or the load suddenly increases and additional power is needed, the kinetic energy can be released as auxiliary power to achieve energy recovery and utilization.

[0024] like Figure 3 As shown, Figure 3 for Figure 1 A schematic diagram of the structure of the central electrical control box.

[0025] The belt conveyor energy recovery and utilization device 1 also includes a control module 141, which is electrically connected to the flywheel energy storage component 13. In this embodiment, an electrical control box 14 is also provided on one side of the support frame 111. The control module 141 is located inside the electrical control box 14 and is electrically connected to the flywheel energy storage component 13.

[0026] The gearbox 133 of the flywheel energy storage component 13 is fixedly connected to the drive roller shaft of the downward section. When the tubular conveyor belt 12 moves downward, the material on the tubular conveyor belt 12 has gravitational potential energy, which drives the drive roller shaft to rotate. The drive roller shaft transmits power to the gearbox 133, which increases the speed and then transmits it to the clutch 132. The control module 141 controls the clutch 132 to engage, and the power is further transmitted to the central shaft of the flywheel body 131, driving the flywheel body 131 to rotate at high speed, converting the gravitational potential energy into the rotational kinetic energy of the flywheel body 131 and storing it. When the tubular conveyor belt 12 needs additional power, the control module 141 controls the clutch 132 to engage again, and the flywheel body 131 releases the rotational kinetic energy, which is transmitted to the clutch 132 through the central shaft, and then transmitted to the drive roller shaft through the gearbox 133 to adjust the speed, providing auxiliary power for the operation of the tubular conveyor belt 12 and realizing energy recovery and reuse.

[0027] In some embodiments, the energy recovery and utilization device 1 for the tubular conveyor also includes a DC-DC converter 142 and a capacitor buffer module 143. The DC-DC converter 142 is electrically connected to the control module 141 and the main motor driving the tubular conveyor belt 12, respectively. The capacitor buffer module 143 is electrically connected to the DC-DC converter 142. A copper busbar can be used to electrically connect the capacitor buffer module 143 and the DC-DC converter 142; this embodiment is not limited to this. In this embodiment, the DC-DC converter 142 is a bidirectional DC-DC converter used to convert mechanical energy into electrical energy. The capacitor buffer module 143 is used to store and stabilize excess electrical energy. Utilizing extremely fast energy response, it smooths out fluctuations in photovoltaic power generation and instantaneous impacts from kinetic energy recovery, ensuring a stable energy supply. The DC-DC converter 142 and the capacitor buffer module 143 are also located inside the electrical control box 14, and integrated control is achieved through signal connections between the control module 141 and various components.

[0028] When the belt conveyor energy recovery and utilization device 1 is in braking condition, the DC converter 142 converts the mechanical energy generated by the main motor into electrical energy, which is then sent to the capacitor buffer module 143 and stored, thereby realizing the recovery of braking energy and mechanical potential energy and reducing the energy loss of mechanical braking during this process.

[0029] like Figure 2 As shown, Figure 2 for Figure 1 A magnified view of a portion of point A in the middle.

[0030] In some embodiments, the belt conveyor energy recovery and utilization device 1 further includes a photovoltaic module 15 and a controller 144. The photovoltaic module 15 includes a photovoltaic panel 151, which is located on top of the support frame 111. In this embodiment, the photovoltaic panel 151 is a plate-shaped material with a cadmium telluride thin film on its surface. The cadmium telluride material can be directly deposited on the photovoltaic panel 151 with an extremely thin coating, making a lightweight, flexible, and even semi-transparent photovoltaic module 15. This not only reduces the burden and cost of the installation structure but also has good low-light response capability, and can still generate electricity effectively in the early morning, evening, or cloudy weather, thereby improving the power generation efficiency and stability of the photovoltaic panel 151.

[0031] The controller 144 is electrically connected to the photovoltaic panel 151 and the main motor, and is also electrically connected to the capacitor buffer module 143. In this embodiment, the controller 144 is an MPPT (Maximum Power Point Tracking Controller) and is also located inside the electrical control box 14. The controller 144 is electrically connected to the photovoltaic panel 151 and the main motor, and is also electrically connected to the capacitor buffer module 143. It is used to process photovoltaic power, using the controller 144 to track the maximum power output point of the photovoltaic panel 151 in real time, and stably transmit the power to the capacitor buffer module 143 or directly to the main motor, avoiding power waste.

[0032] like Figure 5 As shown, Figure 5 This is a circuit diagram of a conveyor energy recovery and utilization device according to an embodiment of this application.

[0033] This embodiment integrates key control components into the electrical control box 14, enabling centralized management of functions such as power processing, signal control, and energy storage buffering. This improves the integration level of the conveyor belt energy recovery and utilization device 1 in this embodiment, while ensuring the stability and controllability of energy supply. Furthermore, the control module 141, as the control core, can dynamically adjust the energy supply ratio of photovoltaic power generation and kinetic energy recovery in the conveyor belt energy recovery and utilization device 1 in this embodiment by analyzing historical data and real-time operating conditions through load forecasting and MPC (Model Predictive Control) algorithm modules.

[0034] In this embodiment, the belt conveyor energy recovery and utilization device 1 includes a support assembly 11, which includes support frames 111 and connecting plates 113. Multiple support frames 111 are arranged along a first direction, and the connecting plates 113 are located between adjacent support frames 111. This embodiment does not limit the number of support frames 111. For example, this embodiment includes four support frames 111, which are evenly distributed along the first direction. A connecting plate 113 is provided between the tops of adjacent support frames 111 to connect adjacent support frames 111 and improve the stability of the support frames 111. Alternatively, a support column can be provided between the tops of two support frames 111 to support the connecting plate 113 and increase the stability of the connecting plate 113.

[0035] like Figure 4 As shown, Figure 4 for Figure 1 A schematic diagram of the supporting components.

[0036] In some embodiments, the photovoltaic panel 151 rotates relative to the top of the support frame 111. The photovoltaic module 15 also includes a fixing seat 152 and a first rotating shaft 153. The two fixing seats 152 are respectively disposed on the top of the two connecting plates 113 along a first direction, and the first rotating shaft 153 is located between the two fixing seats 152. One end of the photovoltaic panel 151 is fixed to the first rotating shaft 153. The fixing seat 152 is provided on the top of the connecting plate 113, and the first rotating shaft 153 is provided between the two fixing seats 152. The length of the first rotating shaft 153 extends along the first direction, and one end of the photovoltaic panel 151 is fixed to the first rotating shaft 153, so that the photovoltaic panel 151 can rotate relative to the first rotating shaft 153.

[0037] The belt conveyor energy recovery and utilization device 1 also includes a detection module, which includes a photosensor 161. The photosensor 161 is fixed to one side of the photovoltaic panel 151 and is electrically connected to the control module 141. The photosensor 161, located on one side of the photovoltaic panel 151, reads the light intensity and light angle data and transmits them to the control module 141. The control module 141 then controls and adjusts the angle of the photovoltaic panel 151 based on the light intensity data.

[0038] In some embodiments, the photovoltaic module 15 includes a first rotating component 155 and a second rotating component 156 disposed opposite to each other. Both the first rotating component 155 and the second rotating component 156 are located on top of the support frame 111 and are disposed opposite to each other along a first direction. The first rotating component 155 includes a first threaded rod 1551, a first threaded block 1552, and a first support rod 1553. The first threaded rod 1551 is inserted into the first threaded block 1552. One end of the first support rod 1553 is fixed to the photovoltaic panel 151, and the other end of the first support rod 1553 is rotatably mounted on the first threaded block 1552. The second rotating component 156 includes a second threaded rod, a second threaded block, and a second support rod. The second threaded rod is inserted into the second threaded block. One end of the second support rod is fixed to the photovoltaic panel 151, and the other end of the second support rod is rotatably mounted on the second threaded block. The photovoltaic module 15 also includes a first motor 154, which is electrically connected to the control module 141. The axis of the output shaft of the first motor 154 coincides with the axis of the first threaded rod 1551, and the output shaft is fixedly connected to the first threaded rod 1551.

[0039] The photovoltaic module 15 also includes a transmission unit 157, which includes a sprocket 1571 and a chain 1572. The two sprockets 1571 are respectively mounted on the first threaded rod 1551 and the second threaded rod, and the two sprockets 1571 are connected by the chain 1572. A sprocket 1571 is provided between the first motor 154 and the first threaded rod 1551, and a sprocket 1571 is also provided at the corresponding position on the second threaded rod. The chain 1572 is sleeved on the two sprockets 1571 along a first direction. The control process can be understood as follows: the control module 141 controls the first motor 154 to rotate, which drives the first threaded rod 1551 and the second threaded rod to rotate simultaneously through the sprocket 1571. This causes the first threaded block 1552 and the second threaded block to move relative to the first threaded rod 1551 and the second threaded rod, respectively. This allows the first support rod 1553 and the second support rod to push the photovoltaic panel 151 to rotate at a certain angle to adapt to different light angles, thereby improving the light energy utilization efficiency of the photovoltaic panel 151.

[0040] The detection module also includes a torque sensor 162 and a speed sensor 163. The torque sensor 162 and the speed sensor 163 are connected to the drive roller shaft of the drive tubular conveyor belt 12. The torque sensor 162 and the speed sensor 163 are electrically connected to the control module 141. The torque sensor 162 and the speed sensor 163 are used to read the initial speed and load status of the drive roller and transmit the data to the control module 141. The control module 141 determines the transportation status of the tubular conveyor belt 12 based on the speed and load status, providing data support for the kinetic energy recovery and power distribution in the tubular conveyor energy recovery and utilization device 1 of this application embodiment.

[0041] In this embodiment, the conveyor belt energy recovery and utilization device 1 further includes a monitoring module 17, which is fixed inside the electrical control box 14 and electrically connected to the control module 141. The monitoring module 17 also includes a data acquisition unit integrated into the control module 141. The data acquisition unit is connected to a photosensitive sensor 161, a torque sensor 162, and a speed sensor 163 via lines, and communicates with an external server via 5G or Ethernet. The detection module uploads the detection data to the external server, constructing a virtual image on the cloud server to achieve real-time visual monitoring of energy flow and equipment status. A visual terminal connected to the monitoring module 17 enables real-time monitoring, improving the intelligent management level of the conveyor belt energy recovery and utilization device 1 in this embodiment.

[0042] Furthermore, the electrical control box 14 is also equipped with a backup power supply interface 145 and a backup battery pack 18. The backup power supply interface 145 is located on one side of the electrical control box 14, and the backup battery pack 18 is fixed inside the electrical control box 14. The backup power supply interface 145 is electrically connected to the control module 141 and can be connected to the main power supply line via an automatic switching switch. When the photovoltaic and kinetic energy recovery energy is insufficient, the control module 141 switches to the backup power supply interface 145 to provide an emergency power supply channel for the belt conveyor energy recovery and utilization device 1 in this embodiment, ensuring the emergency power supply function and ensuring the continuous operation of the belt conveyor energy recovery and utilization device 1 in this embodiment. The backup battery pack 18 is electrically connected to the control module 141 and can be used to store excess power and reduce power loss.

[0043] like Figure 6 As shown, Figure 6 This is a flowchart of a control method for energy recovery and utilization of a conveyor belt in an embodiment of this application.

[0044] This invention also provides a control method for a tubular conveyor energy recovery and utilization device, wherein the control module 141 monitors the tubular conveyor belt 12 in a downward working condition and controls the flywheel energy storage component 13 to start.

[0045] The downhill condition refers to a situation where the tubular conveyor belt 12 experiences a significant and continuous downhill slope in the conveying line. This causes the material on the tubular conveyor belt 12 and the conveyor belt itself to generate a downward driving force under gravity. Under this condition, the drive system of the tubular conveyor belt 12 is in either a "generating" or "braking" state, used to apply braking torque to control the speed of the tubular conveyor belt 12. In this embodiment, when the tubular conveyor belt 12 is in the downhill condition, the flywheel energy storage component 13 is activated to store the excess energy from the material on the tubular conveyor belt 12 and the gravitational potential energy of the conveyor belt 12 that drives the drive roller shaft to rotate, thus achieving energy recovery and utilization.

[0046] This can be understood as follows: when the tubular conveyor belt 12 is under heavy downward load, the control flywheel energy storage component 13 is activated to store the excess energy from the material on the tubular conveyor belt 12 and the gravitational potential energy of the tubular conveyor belt 12 that drives the drive roller shaft to rotate. Specifically, the material on the tubular conveyor belt 12 and the gravitational potential energy of the tubular conveyor belt 12 drive the drive roller shaft to rotate. The drive roller shaft transmits power to the gearbox 133. The gearbox 133 increases the rotational speed and then transmits it to the clutch 132. At this time, the clutch 132 is in the engaged state, and the power is further transmitted to the central shaft of the flywheel body 131, driving the flywheel body 131 to rotate at high speed, converting the gravitational potential energy into the rotational kinetic energy of the flywheel body 131 and storing it.

[0047] In some implementations, when the energy recovery and utilization device 1 of the tubular conveyor experiences a sudden increase in load during the downward operation, the control module 141 predicts the power gap based on the MPC algorithm and controls the flywheel body 131 to release kinetic energy to supplement the power gap. When the tubular conveyor belt 12 experiences a sudden increase in load, that is, when the characteristics of the material carried by the tubular conveyor belt 12 change or the total amount of material increases rapidly, the load on the tubular conveyor belt 12 increases, causing the speed of the tubular conveyor belt 12 to decrease. Additional energy is then needed to maintain the speed to balance the increased load. During a sudden increase in load during the downward operation, the clutch 132 does not need to be engaged again. The control module 141 can directly control the flywheel body 131 to release kinetic energy to provide auxiliary power and supplement the power gap during a sudden increase in load during the upward operation.

[0048] In some implementations, when the energy recovery and utilization device 1 of the tubular conveyor is in the start-up or upward operation condition with a sudden increase in load, the control module 141 predicts the power gap based on the MPC algorithm and controls the clutch 132 to close, and the flywheel body 131 releases kinetic energy to supplement the power gap. The start-up condition is the process of the tubular conveyor belt 12 accelerating from a completely stationary state to its rated operating speed. At this time, the tubular conveyor belt 12 needs to overcome the huge static friction and inertia between the entire transmission system and the conveyed material. When encountering a sudden increase in load during start-up or upward operation, the control module 141 predicts the power gap based on the MPC algorithm and controls the clutch 132 of the flywheel energy storage component 13 to engage. The flywheel body 131 releases rotational kinetic energy, which is transmitted to the clutch 132 via the central shaft, and then transmitted to the drive drum shaft after the speed is adjusted by the gearbox 133, providing auxiliary power for the operation of the tubular conveyor belt 12 and supplementing the power gap during the start-up or upward operation condition with a sudden increase in load. Furthermore, when photovoltaic power supply is insufficient and supplementary power is needed, kinetic energy can also be released as auxiliary power to achieve energy recovery and utilization.

[0049] This invention also provides a control method for a tubular conveyor energy recovery and utilization device, wherein the control module 141 monitors the tubular conveyor belt 12 in braking condition and controls the capacitor buffer module 143 to store energy.

[0050] This can be understood as follows: when the tubular conveyor belt 12 in this embodiment is in braking condition, the braking condition can be determined by detecting a decrease in the rotational speed of the drive roller shaft > 0.5 m / s² and a negative torque. At this time, the DC-DC converter 142 converts the mechanical energy generated by the main motor into electrical energy, which is then sent to the capacitor buffer module 143 and stored, thereby realizing energy recovery during braking and reducing energy loss caused by mechanical braking.

[0051] In some implementations, the control module 141 adjusts the tilt angle of the photovoltaic panel 151, and the controller 144 controls the photovoltaic panel 151 to transmit electrical energy to the main motor; If there is remaining power after the power is transmitted to the main motor, and the power of the capacitor buffer module 143 is less than the preset value, the remaining power will be transmitted to the capacitor buffer module 143; if there is remaining power after the power is transmitted to the main motor, and the power of the capacitor buffer module 143 is not less than the preset value, the remaining power will be transmitted to the backup battery pack 18.

[0052] This can be understood as follows: the control module 141 receives the light intensity data returned by the photosensitive sensor 161. When the light intensity is greater than or equal to the preset light intensity value, the tilt adjustment program of the photovoltaic panel 151 is initiated. In this embodiment, the preset light intensity value is not limited and can be 30W / m². The main control module calculates the solar altitude angle of the day based on the pre-stored geographical information and, combined with the feedback of the measured power generation, determines the tilt angle data. Then, the control module 141 controls the first motor 154 to start, and the first motor 154 drives the photovoltaic panel 151 to rotate to the required tilt angle. When the controller 144 detects that the output power has reached its peak and stabilized, it locks the angle of the photovoltaic panel 151. After that, the controller 144 controls the photovoltaic panel 151 to transmit electrical energy to the main motor. If there is residual electrical energy after transmitting to the main motor, and the charge of the capacitor buffer module 143 is less than the preset value, the residual electrical energy is transmitted to the capacitor buffer module 143. If there is residual electrical energy after transmitting to the main motor, and the charge of the capacitor buffer module 143 is not less than the preset value, the residual electrical energy is transmitted to the backup battery pack 18. This embodiment does not limit the preset value; it can be 90%, and can be set according to actual usage requirements. If the backup battery pack 18 is fully charged and there are other stable voltages, the control module 141 can adjust to power-limited operation or provide feedback through grid connection via the inverter.

[0053] In the control method of this embodiment, after the control module 141 is powered on the belt conveyor energy recovery and utilization device 1, it can first check the feedback data of the photosensitive sensor 161, the speed sensor 163 and the torque sensor 162, as well as the charge state of the capacitor buffer module 143. If there is an abnormality, the belt conveyor energy recovery and utilization device 1 is controlled to standby.

[0054] The control process of the control method can be understood as follows: the equipment starts, the tubular conveyor belt 12 runs along the first direction under the support of the idler roller 112, and generates electricity using the photovoltaic panel 151. The photosensitive sensor 161 transmits the data to the control module 141, and the control module 141 controls the first motor 154 to start. The first motor 154 drives the first rotating shaft 153 to rotate, and through the sprocket 1571 and chain 1572, the first threaded rod 1551 and the second threaded rod rotate synchronously. The first threaded block 1552 and the second threaded block respectively drive the first support rod 1553 and the second support rod to adjust the tilt angle of the photovoltaic panel 151. Among them, the photovoltaic power is transmitted to the controller 144 through the cable, and then transmitted to the capacitor buffer module 143 for storage or for use by the main motor through the copper busbar. When the energy recovery device 1 of the tubular conveyor brakes, the DC converter 142 converts mechanical energy into electrical energy and stores it in the capacitor buffer module 143. When needed, the capacitor buffer module 143 outputs the electrical energy. In the downward working condition of the tubular conveyor belt 12, a flywheel energy storage component 13 is provided. The flywheel energy storage component 13 drives the flywheel body 131 through the gearbox 133 and the clutch 132 to convert the mechanical energy of the downward section into kinetic energy for storage. When the tubular conveyor belt 12 needs power assistance, it is released.

[0055] Meanwhile, the control module 141 utilizes the load prediction and MPC algorithm module to optimize the power supply ratio of each component in the belt conveyor energy recovery device 1 based on the data collected by the speed sensor 163 and torque sensor 162. For example, the electricity generated by the photovoltaic panel 151 is prioritized for use by the main motor, and excess electricity is allocated according to priority. Furthermore, during the use of the belt conveyor energy recovery device 1 in this embodiment, the monitoring module 17 transmits the collected data to the cloud server, displaying the operating status on a visualization terminal for real-time monitoring. If an energy shortage occurs, the control module 141 controls the automatic switching switch of the backup power supply interface 145 to switch the backup power supply interface 145 to the main power supply line.

[0056] The fast response speed of the flywheel energy storage component 13 can adapt to the scenario of sudden load increase of the tubular conveyor belt 12 during transportation; adding a cadmium telluride thin film to the surface of the photovoltaic panel 151 can improve the low-light power generation efficiency of the photovoltaic panel 151; the design of the capacitor buffer module 143 can smooth out energy fluctuations. The embodiment of this application integrates flywheel storage, photovoltaic power supply and capacitor buffer design, increases the energy recovery of the tubular conveyor belt 12 during transportation, reduces the energy consumption of the conveyor belt machine, and improves its environmental friendliness.

[0057] This document uses specific examples to illustrate the principles and implementation methods of this application. The descriptions of the embodiments above are only for the purpose of helping to understand the method and core ideas of this application. It should be noted that those skilled in the art can make several improvements and modifications to this application without departing from the principles of this application, and these improvements and modifications also fall within the protection scope of the claims of this application.

Claims

1. A belt conveyor energy recovery and utilization device, characterized in that, It includes a support frame (111), a tubular conveyor belt (12), a flywheel energy storage component (13), and a control module (141), wherein the tubular conveyor belt (12) is supported on the support frame (111). The flywheel energy storage assembly (13) includes a flywheel body (131), a clutch (132), and a gearbox (133). The flywheel energy storage assembly (13) is located on one side of the support frame (111). One end of the clutch (132) is connected to the flywheel body (131), and the other end of the clutch (132) is connected to one end of the gearbox (133). The other end of the gearbox (133) is connected to the drive roller shaft that drives the tubular conveyor belt (12). The control module (141) is electrically connected to the flywheel energy storage assembly (13).

2. The energy recovery and utilization device for the conveyor belt machine according to claim 1, characterized in that, The energy recovery and utilization device (1) of the tubular conveyor also includes a DC converter (142) and a capacitor buffer module (143). The DC converter (142) is electrically connected to the control module (141) and the main motor that drives the tubular conveyor belt (12), respectively. The capacitor buffer module (143) is electrically connected to the DC converter (142).

3. The energy recovery and utilization device for the conveyor belt machine according to claim 2, characterized in that, The belt conveyor energy recovery and utilization device (1) further includes a photovoltaic module (15) and a controller (144). The photovoltaic module (15) includes a photovoltaic panel (151) located on top of the support frame (111). The controller (144) is electrically connected to the photovoltaic panel (151) and the main motor respectively, and the controller (144) is electrically connected to the capacitor buffer module (143).

4. The energy recovery and utilization device for the conveyor belt machine according to claim 3, characterized in that, The photovoltaic panel (151) rotates relative to the top of the support frame (111); the belt conveyor energy recovery and utilization device (1) further includes a detection module, the detection module includes a photosensitive sensor (161), the photosensitive sensor (161) is fixed to one side of the photovoltaic panel (151), and the photosensitive sensor (161) is electrically connected to the control module (141).

5. The energy recovery and utilization device for the conveyor belt machine according to claim 4, characterized in that, The photovoltaic module (15) includes a first rotating component (155) and a second rotating component (156) arranged opposite to each other. The first rotating component (155) includes a first threaded rod (1551), a first threaded block (1552), and a first support rod (1553). The first threaded rod (1551) is inserted into the first threaded block (1552). One end of the first support rod (1553) is fixed to the photovoltaic panel (151), and the other end of the first support rod (1553) is rotatably installed on the first threaded block (1552). The second rotating component (156) includes a second threaded rod, a second threaded block, and a second support rod. The second threaded rod is inserted into the second threaded block. One end of the second support rod is fixed to the photovoltaic panel (151), and the other end of the second support rod is rotatably installed on the second threaded block. The photovoltaic module (15) also includes a transmission part (157), which includes a sprocket (1571) and a chain (1572). The two sprockets (1571) are respectively installed on the first threaded rod (1551) and the second threaded rod, and the two sprockets (1571) are connected by the chain (1572).

6. A control method for a conveyor belt energy recovery and utilization device, based on the conveyor belt energy recovery and utilization device according to any one of claims 1-5, characterized in that, The control module (141) monitors the tubular conveyor belt (12) in a downward working condition and controls the flywheel energy storage component (13) to start.

7. The control method according to claim 6, characterized in that, When the load of the belt conveyor energy recovery and utilization device (1) suddenly increases during the downward working condition, the control module (141) controls the flywheel body (131) to release kinetic energy.

8. The control method according to claim 6, characterized in that, When the energy recovery and utilization device (1) of the conveyor belt is in the start-up or upward working condition and the load suddenly increases, the control module (141) controls the clutch (132) to close, and the flywheel body (131) releases kinetic energy.

9. A control method for a conveyor belt energy recovery and utilization device, based on the conveyor belt energy recovery and utilization device according to any one of claims 3-5, characterized in that, The control module (141) monitors the tubular conveyor belt (12) in braking condition and controls the capacitor buffer module (143) to store energy.

10. The control method according to claim 9, characterized in that, The control module (141) adjusts the tilt angle of the photovoltaic panel (151), and the controller (144) controls the photovoltaic panel (151) to transmit electrical energy to the main motor; If there is remaining power after the power is transmitted to the main motor, and the power of the capacitor buffer module (143) is less than a preset value, the remaining power is transmitted to the capacitor buffer module (143); if there is remaining power after the power is transmitted to the main motor, and the power of the capacitor buffer module (143) is not less than the preset value, the remaining power is transmitted to the backup battery pack (18).

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