CN214031358U

CN214031358U - Unattended automatic remote monitoring device for mine hoist

Info

Publication number: CN214031358U
Application number: CN202023256003.1U
Authority: CN
Inventors: 杨志猛; 段晓晖; 黄昭林; 陆新华
Original assignee: Hunan Baoshan Nonferrous Metals & Minerals Co ltd
Current assignee: Hunan Baoshan Nonferrous Metals & Minerals Co ltd
Priority date: 2020-12-29
Filing date: 2020-12-29
Publication date: 2021-08-24
Anticipated expiration: 2030-12-29

Abstract

The utility model discloses an automatic remote monitoring device of unmanned on duty's mine winder belongs to the automatic control field, including lifting machine PLC switch board, loading station PLC switch board, unloading station PLC switch board and remote monitoring station, the remote monitoring station all is connected with lifting machine PLC switch board, loading station PLC switch board and unloading station PLC switch board, lifting machine PLC switch board is installed in the promotion computer lab, loading station PLC switch board is installed in the shaft bottom loading station chamber, unloading station PLC switch board is installed in the shaft head unloading station control chamber, remote monitoring station installs in the central control room, sets up MPI communication cable between lifting machine PLC switch board, loading station PLC switch board and the unloading station PLC switch board three and connects. The labor cost can be reduced, the safety protection is complete, the important function is played on the safety of the automatic lifting of the main well, the failure rate is reduced, the production efficiency is improved, and a good effect is achieved.

Description

Unattended automatic remote monitoring device for mine hoist

Technical Field

The utility model relates to an automatic control field especially relates to an automatic remote monitoring device of unmanned on duty's mine winder.

Background

The mine hoist is a throat device for mine production of coal mine, iron mine, copper mine, gold mine and the like, and the main well hoist is responsible for production and transportation tasks of whole mine. The safety and high-efficiency operation of the hoister are critical, the monitoring is accurate, the early warning is timely, the dispatching is reasonable, and the emergency measures are timely and in place when the fault occurs. The control equipment of the elevator is generally operated and controlled by a driver, but with the development of the automatic control and monitoring system technology, particularly the development of the network information technology, the unattended operation of the vertical skip elevator under the normal condition is realized, and the remote monitoring technology is realized.

The problems of the existing elevator control system are as follows: 1. the automation degree is not high, and the manual control is more, so that the safety, the stability and the economy of the hoister are influenced to a certain extent; 2. the monitoring system falls behind, only the operator station has a control right and a monitoring right, and the enterprise dispatching center does not have the control right and the monitoring right, so that the condition of the equipment cannot be known in time for reasonable dispatching and decision-making; 3. when a fault emergency means is backward, an operator needs to inform an enterprise dispatching center of a fault condition by telephone when a fault occurs, and the dispatching center is difficult to accurately know the fault condition in time, so that the decision is delayed or is not reasonable enough, and the enterprise can be caused with great loss; 4. the adjustment of the process parameters of the equipment can only be carried out by an on-site operator station, and an experienced engineer is required to operate the equipment, and due to the characteristics of mine distribution, when a plurality of pieces of equipment need to adjust the process parameters, the engineer cannot arrive at the site in time, so that the potential safety hazard of the equipment exists; 5. the mine hoist systems are relatively independent, monitoring data are dispersed, effective fault analysis basis cannot be provided for enterprises, early warning cannot be made, and potential safety hazards are reduced; 6. the detection means of the main parts of the mechanical equipment are not enough, a plurality of detection blind spots are left, and the mechanical equipment cannot be effectively protected; 7. part of safety detection is mechanical or analog quantity detection, detection precision is low, a serial port communication mode is adopted, anti-interference capability is poor, and communication is unreliable. In order to solve the above problems, related manufacturers have made an effort to solve the above problems, but since no suitable design has been developed and completed for a long time, how to develop an unattended automatic remote monitoring device for a mine hoist belongs to one of the currently important research and development issues, and is also an object of great improvement in the industry at present.

In view of the above-mentioned drawbacks of the existing electric control system for mine hoist, it is necessary to design an unattended automatic remote monitoring device for mine hoist.

SUMMERY OF THE UTILITY MODEL

The utility model discloses a main aim at overcomes the defect that current mine winder electrical control equipment exists, and provides an automatic remote monitoring device of unmanned on duty's mine winder. The utility model discloses based on the practical experience and the professional knowledge that are engaged in this type of product design and manufacture richly for many years, actively add research innovation to the automatic remote monitoring device of unmanned on duty mine winder is established to the stage, makes it more have the practicality. Through continuous research and design, and after repeated trial and improvement, the utility model with practical value is finally created.

The utility model provides an automatic remote monitoring device of unmanned on duty's mine winder, includes lifting machine PLC switch board, loading station PLC switch board, unloading station PLC switch board and remote monitoring station, the remote monitoring station all is connected with lifting machine PLC switch board, loading station PLC switch board and unloading station PLC switch board, lifting machine PLC switch board is installed in the elevator computer lab, loading station PLC switch board is installed in the shaft bottom loading station chamber, unloading station PLC switch board is installed in the shaft head unloading station control chamber, the remote monitoring station is installed in the control room in the mine, sets up MPI communication cable between lifting machine PLC switch board, loading station PLC switch board and the unloading station PLC switch board three and connects.

Further, lifting machine PLC module, lifting machine communication module, ethernet switch and lifting machine stopper are installed to lifting machine PLC switch board, and lifting machine communication module and ethernet switch all are connected with lifting machine PLC module, and the lifting machine stopper is connected with lifting machine PLC module, lifting machine PLC module includes lifting machine power module, lifting machine CPU module, lifting machine DI module, lifting machine DO module, lifting machine AI module and lifting machine AO module all are connected with lifting machine CPU module, and lifting machine power module all is connected the power supply with lifting machine CPU module, lifting machine DI module, lifting machine DO module, lifting machine AI module and lifting machine AO module.

Further, a linear displacement type brake shoe abrasion sensor and an infrared type brake disc temperature sensor are installed on a lifter brake of the lifter PLC control cabinet, and the linear displacement type brake shoe abrasion sensor and the infrared type brake disc temperature sensor are connected with the lifter PLC module through wires.

Further, install skip PLC module and skip communication module in the loading station PLC switch board, skip communication module is connected with skip PLC module, skip PLC module includes skip power module, skip CPU module, skip DI module, skip DO module, skip AI module and skip AO module all are connected with skip CPU module, and skip power module is connected the power supply with skip CPU module, skip DI module, skip DO module, skip AI module and skip AO module respectively.

Furthermore, the unloading PLC control cabinet of the unloading station is provided with an unloading PLC module and an unloading communication module, the unloading PLC module is connected with the unloading communication module, the unloading PLC module comprises an unloading power module, an unloading CPU module, an unloading DI module, an unloading DO module, an unloading AI module and an unloading AO module, the unloading DI module, the unloading DO module, the unloading AI module and the unloading AO module are all connected with the unloading CPU module, and the unloading power module is respectively connected with the unloading CPU module, the unloading DI module, the unloading DO module, the unloading AI module and the unloading AO module for power supply.

Further, the remote monitoring station is provided with an industrial personal computer, a display, a monitoring communication module and a photoelectric conversion module, an optical fiber cable is arranged to be connected with the PLC control cabinet of the elevator, the PLC control cabinet of the loading station and the PLC control cabinet of the unloading station and complete data exchange, the display is connected with the industrial personal computer, the industrial personal computer is connected with the monitoring communication module, and the monitoring communication module is connected with the photoelectric conversion module through a network cable.

Furthermore, the unloading communication module, the skip communication module and the hoisting machine communication module are all CP343-1 Ethernet communication modules, are connected to an industrial Ethernet switch through network cables, and then are connected with a remote monitoring station through an optical fiber network.

The utility model adopts the above technical scheme, the utility model discloses following technological effect has:

the utility model discloses realize that unmanned on duty's main shaft lifting machine remote monitoring device is more direct, more effective, more practical as novel remote monitoring means, and the main shaft lifting machine need not dispose the winch driver, can reduce the recruitment cost; the safety protection is complete, the safety of automatic lifting of the main well plays a crucial role, the failure rate is reduced, the production efficiency is improved, and a good effect is achieved.

Drawings

Fig. 1 is a schematic block diagram of the present invention.

Fig. 2 is the utility model discloses lifting machine PLC switch board schematic block diagram.

Fig. 3 is the utility model discloses load station PLC switch board schematic block diagram.

Fig. 4 is the utility model discloses unloading station PLC switch board schematic block diagram.

Detailed Description

In order to make the objects, technical solutions and advantages of the present invention more clear, preferred embodiments are described in detail. It should be understood, however, that the numerous specific details set forth in the specification are merely set forth to provide a thorough understanding of one or more aspects of the present invention, which may be practiced without these specific details.

An unattended automatic remote monitoring device for a mine hoist is shown in figure 1 and comprises a hoist PLC control cabinet, a loading station PLC control cabinet, an unloading station PLC control cabinet and a remote monitoring station. The elevator PLC control cabinet is installed in an elevator machine room, process control, safety protection and running state monitoring of an elevator running mode are completed, and a PLC module, a communication module and an Ethernet switch are installed on the elevator PLC control cabinet. The loading station PLC control cabinet: the loading station PLC control cabinet is arranged in a shaft bottom loading station chamber to complete skip loading process control, safety protection and running state monitoring, and the loading station PLC control cabinet is provided with a PLC module and a communication module. The unloading station PLC control cabinet is arranged in a control room of a wellhead unloading station to complete skip unloading process control, safety protection and running state monitoring, and the unloading station PLC control cabinet is provided with a PLC module and a communication module. The remote monitoring station is arranged in a mine central control room to complete process control, safety protection and running state monitoring of the hoister, the loading station and the unloading station, and the remote monitoring station is provided with an industrial personal computer, a display, a communication module, a photoelectric conversion module and an Ethernet switch.

The DI module is an existing digital signal input module, the DO module is an existing digital signal output module, the AI module is an existing analog signal input module, the AO module is an existing analog signal output module, and the CPU module is an FX3U series PLC controller.

The elevator PLC control cabinet, the loading station PLC control cabinet and the unloading station PLC control cabinet are connected through MPI communication cables and data exchange is completed in an MPI communication mode, an industrial personal computer of a remote monitoring station is connected with a photoelectric converter in the station through a network cable, the photoelectric converter is connected with an Ethernet switch in the elevator PLC control cabinet through optical fibers, the configuration mode meets the automatic operation requirement of a mine hoisting system, and unattended operation is achieved.

Taking fig. 1 as an example for explanation, fig. 1 shows a main shaft hoist remote monitoring device structure applied to unattended main shaft hoists.

The unattended automatic remote monitoring device for the mine hoist is shown in fig. 2, wherein the PLC control cabinet of the hoist is installed in a hoist machine room to complete process control, safety protection and running state monitoring of the running mode of the hoist, and the PLC control cabinet of the hoist is provided with a PLC module, a communication module and an Ethernet switch. The PLC module comprises a power supply module, a CPU module, a DI module, a DO module, an AI module, an AO module and a communication module, and completes control and protection of an oil pressure braking system of the elevator, speed control and protection of a motor transmission system, position control and protection of an elevating container and double-wire system protection of a safety loop. The PLC module receives signals of a linear displacement type brake shoe wear sensor (16 paths in total) and an infrared type brake disc temperature sensor (2 paths in total) installed on a hoister brake, detects brake shoe clearance and brake disc temperature in real time, displays a brake shoe clearance value and a brake disc temperature value on a remote monitoring station in real time, can set brake shoe clearance overrun pre-alarm and brake shoe wear failure alarm, and can also set spring fatigue pre-alarm, spring failure alarm and brake disc temperature alarm. After the linear displacement type brake shoe abrasion sensor is installed, firstly, a 'brake shoe gap zero clearing' button is clicked on a display of a remote monitoring station by a mouse, at the moment, the 'brake shoe gap zero clearing' flickers, and after 3 seconds, a PLC automatically sets the initial position of a brake shoe and records and stores the initial position as the basis of brake shoe gap overrun, brake shoe abrasion, spring fatigue pre-alarming and fault alarming; detecting the abrasion loss of a brake shoe when the hoister brakes, and expressing the abrasion loss by a value of < - >; brake shoe clearance overrun and spring fatigue failure are detected when the hoist is open, and are indicated by "+" values. The brake disc temperature is detected in real time in the running process of the elevator, the pre-alarm is carried out when the brake disc temperature exceeds 65 ℃, and the fault alarm is carried out when the brake disc temperature exceeds 75 ℃, so that the brake shoe abrasion and the brake disc temperature detection precision and reliability are improved, and the reliable running of a braking system is guaranteed.

The unattended automatic remote monitoring device for the mine hoist is shown in fig. 3, wherein the loading station PLC control cabinet is installed in a shaft bottom loading station chamber, the loading station PLC control cabinet is provided with a PLC module and a communication module, the PLC module comprises a power module, a CPU module, a DI module, a DO module, an AI module, an AO module and a communication module, the skip loading process control, the safety protection and the operation state monitoring are completed, and the communication function with the PLC in the hoist PLC control cabinet is completed. The loading process control comprises vibration ore feeders, belt conveyors, weighing hoppers, sector doors and movable sliding nozzle control, and the quantitative weighing and loading of the weighing hoppers can be realized through a weighing sensor and a PLC. And when the quantitative hopper is a skip bucket and is loaded, the chute mouth of the quantitative hopper is withdrawn, the sector door of the quantitative hopper is closed, and a loading completion signal is sent to the elevator. After the skip leaves the loading position, starting the belt conveyor and the vibration feeder, conveying ores for the weighing hopper, detecting the ore weight in the weighing hopper in real time by the PLC through the weighing sensor, stopping the vibration feeder and the belt conveyor when the ore weight in the weighing hopper reaches the specified weight, and preparing for next skip loading. In order to prevent the hoister from running in an overload mode, the safety protection adopts metering and capacity metering to form a double protection loop, except that a material level detection switch is installed at the position of the maximum capacity line of the metering hopper, when ore exceeds the capacity line, the detection switch gives out a switch signal to trigger the ore bin constant-volume protection action, and a loading system automatically stops ore loading and gives an alarm. Safety protection still includes large granule ore ultrasonic detection and ore drawing machine card fill and detects the protection, installs ultrasonic detection sensor in ore drawing machine export conveyor belt department, installs in the belt feeder top for detect cubic ore height, thereby judge the material size, in case detect out there is big particulate matter, just report to the police immediately and stop ore drawing machine and belt feeder operation, the prevention feed opening blocks up. Meanwhile, aiming at the problem of blockage of the ore drawing port caused by large ore, the change rate of the weight of the ore in the measuring hopper in unit time is detected to judge whether the problem of blockage of the tongue port of the ore drawing machine hopper exists or not and give an alarm. The PLC control cabinet of the loading station has the automatic yield counting function, and the PLC automatically counts the yield of the lifted ores and the ore types of the corresponding ore bins according to the loading weight of the quantitative hopper and the lifting hook number every time and generates a report.

The communication and control modes used in the whole device are the existing communication protocol and the existing control logic, and the related display software and the like are the existing software and can be displayed on the display screen by direct downloading and installation.

Fig. 4 shows that the unloading station PLC control cabinet is installed in a control room of a wellhead unloading station to complete skip unloading process control, safety protection and running state monitoring, and the unloading station PLC control cabinet is installed with a PLC module and a communication module. The PLC module and the communication module comprise a power supply module, a CPU module, a DI module, a DO module, an AI module, an AO module and a communication module and complete the communication function with the PLC in the PLC control cabinet of the elevator. The safety protection comprises skip door closing protection, a skip door closing detection sensor is installed at the unloading bend position and used for detecting the opening and closing state of the skip door, the situation that the skip door is not completely closed when the skip slides out from the bend is prevented, and therefore potential safety hazards caused by shaft bottom leakage when secondary excessive loading and loading are carried out, wherein the skip is not emptied.

The automatic remote monitoring device of the unattended mine hoist is characterized in that the remote monitoring station is installed in a mine central control room, the remote monitoring station is provided with an industrial personal computer, a display, a communication module and a photoelectric conversion module, and is connected with a hoist PLC control cabinet, a loading station PLC control cabinet and an unloading station PLC control cabinet in a communication mode to complete data exchange. The monitoring pictures of the operation of the hoister, the loading station and the unloading station are compiled, and the process control, the safety protection and the operation state monitoring of the hoister, the loading station and the unloading station can be remotely realized in a central control room through the monitoring pictures on the displayer.

Three sets of PLC control systems in the elevator PLC control cabinet, the loading station PLC control cabinet and the unloading station PLC control cabinet are provided with CP343-1 Ethernet communication modules, are connected to an industrial Ethernet switch through network cables and then are transmitted to a remote monitoring station through an optical fiber network.

The unattended remote monitoring device for the main shaft elevator has two working modes of automation and semi-automation. The full-automatic operation and unattended operation can be realized in normal production time.

Under the full-automatic operation mode, at a remote monitoring station, an operator selects an elevator working mode selection switch to be automatic on upper monitoring software, clicks a start button, and then the elevator system enters an automatic operation mode.

The bottom hole loading system is under the 'automatic' mode, carries on the automatic loading to the weighing hopper first. The system automatically detects the weight of the ore in the weighing hopper, determines that the weighing hopper is free of the ore, automatically starts the belt conveyor and the vibration ore drawing machine to load the ore into the skip, and automatically stops the loading of the weighing hopper when the weighing sensor detects that the weight of the ore in the weighing hopper reaches the weight set by the system, and waits for the skip to automatically run to a shaft bottom loading stopping position. After the metering and loading system receives a stopping signal that the skip is put in place, the hydraulic station is started automatically, the sliding nozzle and the fan-shaped door are opened sequentially, ores are discharged into the skip, the weighing sensor detects that the metering skip is emptied, the fan-shaped door falls automatically, the sliding nozzle is packed up, after the two are put in place completely, a driving permission instruction is given, the signal system sends a lifting signal, the skip starts to be lifted automatically, the metering and loading system starts to repeat automatic loading of the metering skip again, and the next working cycle is entered.

The elevator is under "automatic" mode, starts peripheral equipment earlier by oneself, detects the skip and is not in well head uninstallation position, and signal system sends out the signal of lifting automatically, promotes the skip earlier to well head unloading station, guarantees that the skip has been unloaded empty, sends the signal of transferring automatically again, gets into automatic operation. The hoisting system drops the skip to a shaft bottom loading position, the shaft bottom skip in-place switch acts, the signal system automatically sends a stop signal, the hoisting machine automatically stops, and the loading system waits for the skip to load ores. After the loading system finishes loading the skip, the signal system automatically sends a lifting signal, the elevator receives the lifting signal sent by the shaft bottom loading system, the elevator automatically starts lifting, the operation processes of starting, accelerating, constant speed, decelerating and crawling are finished, when the skip reaches a shaft top unloading position, a shaft top in-place switch acts, the signal system automatically sends a stopping signal, the elevator automatically stops, ore is unloaded into a shaft top chute, after the skip is unloaded, the signal system automatically sends a lowering signal, the elevator automatically starts lowering, the skip is dropped to the shaft bottom loading position, and the next working cycle is entered. In the whole operation process of the system, manual operation is not needed, so that the automatic operation of the main well lifting system is realized.

Under the semi-automatic operation mode, in a remote monitoring station or a skip well hoisting control chamber, an operator selects a working mode selection switch of a hoister and a metering loading and unloading system to be semi-automatic on upper monitoring software, at the moment, the hoister enters a semi-automatic operation mode, and a bottom hole metering loading system enters a manual working mode. In the mode, a lifting signal of the hoister is sent out manually by an operator of a shaft bottom loading system, a lowering signal is sent out manually by an operator of a shaft top unloading station, after the hoister receives the signal, a hoisting driver presses an 'operation' button, and the hoister starts to lift up or lower down to operate according to a driving signal. The bottom hole metering loading system is used for manually loading and unloading the metering hopper, and the mode is only adopted during daily maintenance.

The foregoing is only a preferred embodiment of the present invention, and it should be noted that, for those skilled in the art, a plurality of modifications and decorations can be made without departing from the principle of the present invention, and these modifications and decorations should also be regarded as the protection scope of the present invention.

Claims

1. The utility model provides an automatic remote monitoring device of unmanned on duty mine winder which characterized in that: including lifting machine PLC switch board, loading station PLC switch board, unloading station PLC switch board and remote monitoring station, the remote monitoring station all is connected with lifting machine PLC switch board, loading station PLC switch board and unloading station PLC switch board, lifting machine PLC switch board is installed in the lifting machine room, loading station PLC switch board is installed in the shaft bottom loading station chamber, unloading station PLC switch board is installed in the well head unloading station control chamber, the remote monitoring station is installed in the well control room in the mine, sets up MPI communication cable connection between lifting machine PLC switch board, loading station PLC switch board and the unloading station PLC switch board three.

2. The automated remote monitoring device of an unattended mine hoist according to claim 1, wherein: hoister PLC switch board installs hoister PLC module, hoister communication module, ethernet switch and hoister stopper, and hoist communication module and ethernet switch all are connected with hoister PLC module, and the hoister stopper is connected with hoister PLC module, the hoister PLC module includes hoist power module, hoist CPU module, hoist DI module, hoist DO module, hoist AI module and hoist AO module, and hoist DI module, hoist DO module, hoist AI module and hoist AO module all are connected with hoist CPU module, and hoist power module all is connected the power supply with hoist CPU module, hoist DI module, hoist DO module, hoist AI module and hoist AO module.

3. The automated remote monitoring device of an unattended mine hoist according to claim 2, wherein: the elevator brake of the elevator PLC control cabinet is provided with a linear displacement type brake shoe abrasion sensor and an infrared type brake disc temperature sensor, and the linear displacement type brake shoe abrasion sensor and the infrared type brake disc temperature sensor are connected with the elevator PLC module through wires.

4. An unattended automatic remote monitoring apparatus of a mine hoist according to claim 3, characterised in that: install skip PLC module and skip communication module in the loading station PLC switch board, skip communication module is connected with skip PLC module, skip PLC module includes skip power module, skip CPU module, skip DI module, skip DO module, skip AI module and skip AO module all are connected with skip CPU module, and skip power module is connected the power supply with skip CPU module, skip DI module, skip DO module, skip AI module and skip AO module respectively.

5. The automated unattended remote monitoring device for a mine hoist according to claim 4, wherein: the unloading PLC module is connected with the unloading communication module, the unloading PLC module comprises an unloading power module, an unloading CPU module, an unloading DI module, an unloading DO module, an unloading AI module and an unloading AO module, the unloading DI module, the unloading DO module, the unloading AI module and the unloading AO module are all connected with the unloading CPU module, and the unloading power module is respectively connected with the unloading CPU module, the unloading DI module, the unloading DO module, the unloading AI module and the unloading AO module for power supply.

6. The automated unattended remote monitoring device for a mine hoist according to claim 5, wherein: the remote monitoring station is provided with an industrial personal computer, a display, a monitoring communication module and a photoelectric conversion module, an optical fiber cable is arranged to be connected with a PLC control cabinet of the elevator, a PLC control cabinet of the loading station and a PLC control cabinet of the unloading station and complete data exchange, the display is connected with the industrial personal computer, the industrial personal computer is connected with the monitoring communication module, and the monitoring communication module is connected with the photoelectric conversion module through a network cable.

7. The automated unattended remote monitoring device of claim 6, wherein: the unloading communication module connection, the skip communication module and the lifting machine communication module are all CP343-1 Ethernet communication modules, are connected to an industrial Ethernet switch through network cables, and then are connected with a remote monitoring station through an optical fiber network.