Power supply device for vertical shaft lifting cage

Abstract

The invention relates to a vertical shaft lifting cage power supply device, the power supply device comprises a PLC control cabinet, a well mouth signal station, an indoor monitoring computer, a wireless charging device, a battery box, an in-cage operation display box, a signal transmitting box and a signal receiving box, the PLC control cabinet is placed at a left corner position in a control room, the well mouth signal station is placed at a right observation window position, and the wireless charging device is arranged in the control room. The indoor monitoring computer and the operation room voice interphone are arranged on the right side of the wellhead signal station, so that the operation personnel can visually see the dynamic state of the personnel in the tank and can be in voice contact with tank passengers in the tank through the operation room voice interphone and the in-tank voice interphone; according to the technical scheme, the operation system method is easy to operate, and parking transfer at all levels can be rapidly achieved through buttons of the operation box displayer.

Description

Technical Field

[0001] The invention relates to a shaft hoisting cage power supply device, belongs to the technical field of safety monitoring of underground mine shaft hoisting systems, and aims to improve the safety and efficiency of mine shaft hoisting systems through wireless communication technology. Background Art

[0002] In mining enterprises such as Meishan Mining Branch, the vertical shaft hoisting cage is an indispensable part of daily production, used to lift personnel, materials, ores, etc. In the existing technology, the vertical shaft hoisting system establishes an industrial control network of underground, wellhead, shaft and machine room through wired and wireless communication transmission technology, and improves the hoisting system monitoring network, realizes the information exchange between underground, wellhead, cage and machine room, and provides a hardware foundation for the construction of the whole mine industrial network and the realization of comprehensive mine automation, and develops in the direction of smart mines. However, these technologies all require power supply. However, there are many safety technical problems in laying mobile cables in the cage, so there is an urgent need for a vertical shaft hoisting cage power supply device. Summary of the invention

[0003] The present invention aims at the technical problems existing in the prior art and provides a shaft hoisting cage power supply device. The technical solution is cleverly designed and compact in structure. The operating system method of the technical solution is simple to operate, and the docking and transfer of each level can be quickly achieved through the buttons on the operating box display.

[0004] In order to achieve the above-mentioned purpose, the technical scheme of the present invention is as follows: a power supply device for a vertical shaft lifting cage, the power supply device comprising a PLC control cabinet, a wellhead signal station, an indoor monitoring computer, a wireless charging device, a battery box, an in-tank operation display box, a signal transmitting box and a signal receiving box. The PLC control cabinet is placed at the left corner of the wellhead control room of the cage-420 horizontal wellhead, and the wellhead signal station is placed at the right observation window position, so that the operator can observe the position of the wellhead personnel, and the indoor monitoring computer and the operation room voice intercom are placed on the right side of the wellhead signal station. The operator can intuitively see the dynamics of the personnel in the tank, and can communicate with the tank passengers in the tank through the voice intercom in the operation room.

[0005] The signal receiving box is fixed to the reserved installation fixing hole on the top of the cage by bolts through the fixing hole inside the box, and the signal transmitting box is fixed to the outside of the wall of the -420 horizontal wellhead operation room by expansion bolts through the fixing hole.

[0006] The battery box is fixed to the reserved installation and fixing holes on the top of the cage by four bolts through the fixing holes in the box. The wireless charging device is installed on the left maintenance platform column at the -420 level through the fixing holes in the box. When the cage is lifted and docked at the -420 level, the battery box and the wireless charging device can achieve effective charging distance at a close horizontal position. When the battery box is low on power, it can be quickly charged by docking at this level. The in-tank operation display box is fixed to the reserved hole in the middle of the tank body on the left side of the cage by bolts through the fixing holes in the box. The battery box adopts a high-strength flameproof box and is installed on the top of the cage. The battery box has a built-in lithium iron phosphate battery. The battery capacity meets the basic use needs of electrical equipment in the cage for not less than 6 hours. The in-tank voice intercom is installed on the left side of the in-tank operation display box with rivets. The travel switch is fixed at the landing point of the tank curtain door in the cage with rivets. After the tank curtain door is closed in place, the signal button operation of the in-tank operation display box in the tank returns to normal. After the tank curtain door is closed in place, the tank passengers can send instructions to the tank operation display box and the tank voice intercom to feedback the situation in the tank. The start-up signal can be sent through the wellhead (-420 horizontal), and the operator can confirm the operation according to the received signal instruction. A hole is drilled in the upper left corner of the top of the tank and LED lighting is fixed with bolts. When lifting personnel, the lighting is always on, so that the tank passengers can clearly see the situation in the tank and stand in a reasonable position. The power supply device includes a travel switch, and the travel switch is fixed with rivets at the landing point of the tank curtain door in the cage. After the tank curtain door is closed in place, the signal button operation of the tank operation display box in the tank returns to normal. After the tank curtain door is closed in place, the tank passengers can send instructions to the tank operation display box and the tank voice intercom to feedback the situation in the tank. The start-up signal can be sent through the wellhead (-420 horizontal), and the operator can confirm the operation according to the received signal instruction. A bolt camera is drilled in the upper right corner of the tank to realize visual monitoring of the inside of the cage, and the operator can observe the real-time dynamics of the personnel in the tank through the indoor monitoring computer. A charging device is added to the top (or side) of the cage. When the battery pack is low on power, it can be docked at the wellhead (-420 level) to realize the automatic charging function of the battery. The wireless signal device installed at the relevant position of the cage consists of a battery box, an operation display box in the tank, a charging device, etc., integrating a set of wireless communication equipment; the operation display box in the tank integrates S7-1200PLC and HMI human-machine display. PLC detects the battery voltage, charging current, battery temperature, etc. of the battery box, as well as button instructions such as direction, lifting, lowering, slow up, slow down, door opening, door closing, etc. When the tank crew operates the tank curtain door, the travel switch works with the PLC control cabinet to ensure that the buttons on the operation display box can only be operated after the door is closed to prevent erroneous instructions. The PLC control cabinet transmits the camera signal to the monitoring computer to realize visual monitoring. The signal transmitting box and the signal receiving box are responsible for transmitting operation signals and information to realize wireless communication between the well and the wellhead.

[0007] The present invention provides a power supply device for a shaft hoisting cage, which has the following characteristics: compact structure, ingenious design, simple operating system method, and rapid docking and transfer at each level. Safety interlocking is achieved through travel switches and PLC control cabinets to ensure the safety of tank passengers. Voice intercoms enable communication between tank passengers and operating room personnel. Wireless charging technology solves the difficulties of wired installation and ensures the normal operation of wireless communication. Wireless charging enables effective charging of the battery box, ensures the feasibility of normal operation of wireless communication, and solves the problem of difficult and inconvenient wired installation. The law of electromagnetic induction is used to achieve wireless charging of the battery box, thereby improving the convenience and safety of charging. Safety interlocking mechanism: The cooperation of the travel switch and the PLC control cabinet enhances the safety of operation. Integrated design: The operation display box in the tank integrates PLC and HMI to simplify the operation interface and improve the user experience BRIEF DESCRIPTION OF THE DRAWINGS

[0008] Figure 1 : Schematic diagram of the power supply device for the shaft hoisting cage.

[0009] Figure 2 : The schematic diagram of wireless charging shows the process of the power converter converting 220V voltage into 48V and transmitting energy through the law of electromagnetic induction.

[0010] In the figure: 1. PLC control cabinet, 2. Wellhead signal station, 3. Indoor monitoring computer, 4. Voice intercom in the operation room, 5. Travel switch, 6. Camera, 7. Wireless charging device, 8. Battery box, 9. Operation display box in the tank, 10. Signal transmitting box, 11. Signal receiving box, 12. LED lighting, 13. Voice intercom in the tank. DETAILED DESCRIPTION

[0011] In order to deepen the understanding of the present invention, the present embodiment is described in detail below with reference to the accompanying drawings.

[0012] Example 1: See Figure 1 , Figure 2A power supply device for a vertical shaft hoisting cage, the power supply device comprising a PLC control cabinet 1, a wellhead signal station 2, an indoor monitoring computer 3, a wireless charging device 7, a battery box 8, an in-tank operation display box 9, a signal transmitting box 10 and a signal receiving box 11, wherein the PLC control cabinet 1 is placed at the left corner of the wellhead control room of the cage-420 level, the wellhead signal station 2 is placed at the right observation window position, so that the operator can observe the position of the wellhead personnel, the indoor monitoring computer 3 and the operation room voice intercom 4 are placed on the right side of the wellhead signal station 2, the operator can intuitively see the dynamics of the personnel in the tank, and can communicate with the tank passengers in the tank through the operation room voice intercom 4 through the tank voice intercom 13. The signal receiving box 11 is fixed to the reserved installation and fixing hole on the top of the cage by bolts through the fixing hole inside the box. The signal transmitting box 10 is fixed to the outside of the wall of the -420 horizontal wellhead operation room by expansion bolts through the fixing hole inside the box. The battery box 8 is fixed to the reserved installation and fixing hole on the top of the cage by four bolts through the fixing hole inside the box. The wireless charging device 7 is installed on the left side maintenance platform column of -420 horizontal through its fixing hole inside the box. When the cage is lifted and docked at the -420 level, the battery box 8 and the wireless charging device 7 can achieve an effective charging distance at a close horizontal position. When the battery box 8 is low on power, it can be quickly charged by docking at this level. The in-tank operation display box 9 is fixed to the reserved hole in the middle of the tank body on the left side of the cage by bolts through the fixing hole inside the box. The battery box adopts a high-strength flameproof box and is installed on the top of the tank cage. The battery box has built-in lithium iron phosphate batteries. The battery capacity meets the basic use needs of electrical equipment in the tank cage for not less than 6 hours; the left side of the tank operation display box 9 is installed with rivets for the tank voice intercom 13, and the travel switch 5 is fixed with rivets at the landing point of the tank curtain door in the tank cage. After the tank curtain door is closed in place, the signal button operation of the tank operation display box 9 in the tank returns to normal. After the tank curtain door is closed in place, the tank crew sends instructions to the tank voice intercom 13 through the tank operation display box 9 to feedback the situation in the tank. The start-up signal can be sent through the wellhead (-420 level), and the operator can press the received signal The command confirms the operation, a hole is drilled in the upper left corner of the top of the tank and the LED lighting 12 is fixed with bolts. When lifting personnel, the lighting is always on, so that the tank passengers can clearly see the situation in the tank and stand in a reasonable position. The power supply device includes a travel switch 5. The travel switch 5 is fixed with rivets at the landing point of the tank curtain door in the cage. After the tank curtain door is closed in place, the signal button operation of the tank operation display box 9 in the tank returns to normal. After the tank curtain door is closed in place, the tank passengers send commands to the tank operation display box 9 and the tank voice intercom 13 to feedback the situation in the tank. The start-up signal can be sent through the wellhead (-420 level), and the operator confirms the operation according to the received signal command.

[0013] Among them, the bolt camera 6 is used to drill a hole in the upper right corner of the tank to realize visual monitoring of the inside of the tank cage. The operator can observe the real-time dynamics of the personnel in the tank through the indoor monitoring computer 3. A charging device is added to the top (or side) of the tank cage. When the battery pack is insufficient, it can be docked at the wellhead (-420 level) to realize the automatic charging function of the battery. The wireless signal device installed at the relevant position of the tank cage consists of a battery box, an operation display box in the tank, a charging device, etc., integrating a set of wireless communication equipment; the operation display box in the tank integrates S7-1200PLC and HMI human-machine display. PLC detects the battery voltage, charging current, battery temperature, etc. of the battery box, as well as button instructions such as direction, lifting, lowering, slow up, slow down, open door, and close door.

[0014] In this solution, the PLC control cabinet is responsible for the overall control logic. The wellhead signal station is used for observation and control by wellhead operators. The indoor monitoring computer monitors the internal situation of the cage. The wireless charging device provides charging function for the battery box. The battery box has a built-in lithium iron phosphate battery to meet the use of electrical equipment in the cage for at least 6 hours. The operation display box in the tank integrates S7-1200PLC and HMI human-machine display to control various operation instructions. The signal transmission box and signal receiving box realize the transmission of wireless signals. LED lighting and camera provide lighting and real-time monitoring.

[0015] See also Figure 2 The principle of wireless charging is to convert the 220V voltage provided on the left side into 48V through a power converter, and transfer energy through the law of electromagnetic induction to realize 48V battery charging. Through contactless charging, the battery box 8 can be charged in a fragmented manner.

[0016] Working principle description:

[0017] The present invention is a safety monitoring and communication method for the shaft hoisting system of an underground mine, which provides safety protection for the hoisting of personnel in the shaft cage. When the personnel in the cage operate the curtain door, the travel switch and the PLC control cabinet work together to ensure that the buttons on the operation display box can only be operated after the door is closed to prevent erroneous instructions. The PLC control cabinet transmits the camera signal to the monitoring computer to realize visual monitoring. The signal transmitting box and the signal receiving box are responsible for transmitting the operation signal and information to realize wireless communication between the underground and the wellhead.

[0018] When the tank crew lifts the cage curtain door, the travel switch 5 does not work, and the information is fed back to the tank operation display box 9 through the PLC control cabinet 1. The buttons on the tank operation display box 9 cannot be used to prevent the control room from receiving wrong instructions and causing the cage to move. When the tank crew puts down the cage curtain door, the travel switch 5 works, and the information is fed back to the tank operation display box 9 through the PLC control cabinet 1. The buttons on the tank operation display box 9 can be used normally, and the tank crew can press the buttons on the tank operation display box 9 to reach the specified level. The PLC control cabinet 1 is used as a medium to dynamically transmit the visual image information of the camera 6 to the monitoring computer 3 for the tank crew, and the tank crew and the operating room personnel realize voice communication with the operating room voice intercom 4 through the tank voice intercom 13. The signal transmitting box 10 and the signal receiving box 11 transmit and process the tank operation signal, sound, and light to realize information transmission. The wellhead signal station 2 selects the "in-tank" signal and displays "authorization request". The cage box or the wellhead signal station selects authorization at the same time, which is the cage signal. In the parking state, if no authorization is selected at any place at the wellhead or in the tank, the authorization is revoked; when the tank signal is used, the communication between the tank signal box and the signal system is disconnected, and the authorization is revoked after parking, and it is necessary to select the authorization again.

[0019] It should be noted that the above embodiments are not intended to limit the protection scope of the present invention, and equivalent changes or substitutions made on the basis of the above technical solutions all fall within the protection scope of the claims of the present invention.

Claims

1. A power supply device for a vertical shaft hoisting cage, characterized in that: The power supply device comprises a PLC control cabinet (1), a wellhead signal station (2), an indoor monitoring computer (3), a wireless charging device (7), a battery box (8), an in-tank operation display box (9), a signal transmitting box (10) and a signal receiving box (11). The PLC control cabinet (1) is placed at the left corner of the control room, the wellhead signal station (2) is placed at the right observation window position, so that the operator can observe the position of the wellhead personnel. The indoor monitoring computer (3) is placed at the right position of the wellhead signal station (2). The signal receiving box (11) is fixed to the reserved installation fixing hole on the top of the tank cage by bolts through the fixing hole in the box, the signal transmitting box (10) is fixed to the outside of the wall of the operating room by expansion bolts through the fixing hole, the battery box (8) is fixed to the reserved installation fixing hole on the top of the tank cage by four bolts through the fixing hole in the box, the wireless charging device (7) is installed on the left maintenance platform column through the fixing hole in the box, and the in-tank operation display box (9) is fixed to the reserved hole in the middle position of the tank body on the left side of the tank cage by bolts through the fixing hole in the box.

2. The shaft hoist cage power supply device according to claim 1, characterized in that: The power supply device comprises an operation room voice intercom (4), and the operation room voice intercom (4) is placed on the right side of the wellhead signal station (2).

3. The shaft hoist cage power supply device according to claim 2, characterized in that: The battery box adopts a high-strength explosion-proof box, which is installed on the top of the tank cage. The battery box contains built-in lithium iron phosphate batteries.

4. The shaft hoist cage power supply device according to claim 3, characterized in that: The left side of the in-tank operation display box (9) is equipped with an in-tank voice intercom (13) by using rivets.

5. The shaft hoist cage power supply device according to claim 4, characterized in that: The position of the tank curtain door in the tank cage is fixed with a travel switch (5) by rivets. After the tank curtain door is fully closed, the signal button operation of the tank operation display box (9) in the tank is restored to normal. After the tank curtain door is fully closed, the tank passengers send instructions to the tank operation display box (9) and the tank voice intercom (13) to feedback the situation in the tank, and the operator confirms the operation according to the received signal instruction.

6. The shaft hoist cage power supply device according to claim 5, characterized in that: Drill a hole in the upper left corner of the tank and use bolts to fix the LED lighting (12).

7. The shaft hoist cage power supply device according to claim 6, characterized in that: The power supply device comprises a travel switch (5), and the travel switch (5) is fixed by rivets at the landing point of the tank curtain door in the tank cage. After the tank curtain door is fully closed, the signal button operation of the tank operation display box (9) in the tank is restored to normal. After the tank curtain door is fully closed, the tank passengers send instructions to the tank voice intercom (13) through the tank operation display box (9) and the tank voice intercom (13) to feedback the situation in the tank.

8. The shaft hoist cage power supply device according to claim 7, characterized in that: A bolt camera (6) is used to drill a hole in the upper right corner of the tank to realize visual monitoring of the interior of the tank cage. The operator can observe the real-time status of the personnel in the tank through the indoor monitoring computer (3).

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