Product use

Sports car protection device is suitable for the coal mine with explosive dangerous gas and coal dust, the device can be installed in the coal mine, metal mines and non-metal mines and other inclined angles below 30° in the transport incline of the monorail or double track lifting transport, to achieve effective protection for the operation of the car.

The "Coal mine Safety Regulations" and the "Safety Regulations for Metal and non-metal Mines" (hereinafter referred to as the "Regulations") make the following provisions on the safety facilities of inclined lanes: A sports car protection device is installed in the inclined roadway, which can prevent the running interrupt rope and decoupling vehicles from sliding into the inclined roadway. A car stopper is installed at the upper flat car yard near the changing slope point to prevent the unconnected vehicles from sliding into the inclined roadway. At the place greater than 1 train length below the changing slope point, a car barrier is installed to prevent the unconnected vehicles from continuing to go down the sports car. The "Coal Mine Safety and Quality Standardization Standards and assessment and rating Measures" stipulates that the protection of inclined roadway shall comply with the provisions of the "Regulations", and the audible and visual running alarm must be used at the upper, lower and middle passageways of inclined roadway, and the blocking device at the slope change point of the winch above 1.2m and slightly larger than 1 train length should be linked with the winch.

According to the regulations, our company adopts the advanced design concept to develop the ZDC30 sports car protection device, which uses high-precision sensor (radar) to accurately locate the position of the mine car, as the basis for controlling the opening and closing of the car barrier; At the same time, it can centrally upload and display the status information of "open", "running", "closed" and "alarm" of the car block, which is convenient for the transport winch operator to find and deal with problems in time; The bottom lift block adopts the energy absorbing structure, which can effectively stop the vehicle running. The car block is in the "normally closed" protection state. Such as due to broken rope, decoupling and other reasons for sports car accidents. Flexible buffers can be used for effective interception.

Device composition

The sports car protection device mainly consists of mine flameproof and intrinsically safe electric control box, auxiliary electric control box for sports car protection device, mine flameproof and intrinsically safe low-voltage reversible electromagnetic starter, mine flameproof and intrinsically safe acousto-optical voice alarm, speed sensor for sports car protection device, mine flameproof liquid crystal display screen, mine flameproof three-phase asynchronous motor for underground coal mine, retracting winch for sports car protection device Hydraulic station/cylinder, buffer, speed sensor, radar sensor, coal mine with mobile rubber sleeve flexible cable, general purpose steel wire rope, etc.

Main feature

The system control function is powerful: the electric control box adopts Siemens S7-1200 series PLC as the main control unit, and adopts Modbus RTU communication (RS-485 interface) or PROFINET(network interface) and auxiliary electric control box combined system for sports car protection devices;

Color screen display, control functions are complete: the main control box is equipped with a 10-inch color LCD display unit, the display is intuitive, the parameter setting is simple, the graphical man-machine interface can be used to display the running position of the mine car, the distance, the status of each block and other conditions, and can be operated and controlled; When a fault occurs, the animation is used to accurately display and locate the fault location and type, so as to confirm and deal with the fault;

Sports car protection block type: bottom lift (hydraulic control) block and suspension (retracting winch control) block;

Normally closed sports car protection function: when there is no mining car through, the roadblock of the sports car protection device is in a "normally closed" state, so that the entire transport roadway is in a closed state, playing the role of sports car protection, when there is a mining car through and close to the roadblock, the roadblock through the electric hydraulic push rod will lift the roadblock;

The device has the function of manual and automatic control conversion: the system sets automatic control and manual control in two ways, when passing a person or a pedestrian, the manual mode is adopted, press the lift button on the operation panel _, and all the car barriers fall and lock in the "normal open" state; After passing by people or pedestrians, switch to the automatic mode by pressing the button, all the barriers automatically lift into the "normally closed" state, and realize the automatic lifting and falling of the barriers when the mining car passes;

The system can access the monitoring network smoothly through the network interface, and with the explosion-proof camera can form a video monitoring system to ensure the safety of roadway driving;

The system has "lift", "extract", "automatic", "manual", "offline selection", "self-check" and other operations, which can easily choose various working methods according to different situations;

The system has real-time monitoring function: the status of the block and the running position of the car can be displayed in real time through the touch screen;

The system has automatic fault detection function, fault sound, light, voice alarm function;

Easy installation and maintenance: The system installation only needs the power line and communication line (or optical fiber) to complete the centralized control in the winch room, the structure of each component is reasonable, the performance is stable and the safety is strong, and the comprehensive cost performance is higher;

The device has high measurement and control accuracy and high reliability: the dual Hall sensor speed measurement or radar sensor is used to realize the double safety of the mine car position detection, which greatly improves the reliability and safety of the system;

The device adopts advanced control technology, so that the measurement and control accuracy of time and running speed can reach 2ms and 0.05m/s, and the control accuracy of the whole device can be improved.

Using real-time monitoring and display of the position of the block to ensure the accuracy of blocking the car;

High configuration to meet different needs: KXB-127ZD sports car protection device with auxiliary electric control box commutating switch and high voltage vacuum contactor, can meet various field conditions, auxiliary electric control box using Siemens PLC as the main control unit, through Modbus RTU communication (RS-485 interface) or PROFINET(network interface) and electric control box to complete the system combination;

The auxiliary electric control box shell adopts quick-opening, double-chamber structure design, modular installation, easy wiring and maintenance, and can protect the motor from over-voltage, over-current, short circuit and breaking equal, and the safety is higher.

The opening time of the barrier is shortened, the protection blind spot is reduced, and the protection safety is increased;

With fault alarm, block status indication, vehicle and truck respectively control, powerful function, easy control;

"Buffer" type interception function: the use of platen type buffer energy absorber, so that two splints effectively clamp four steel cables, when the car hit the fence, the steel cable goes down with the car, the steel cable and the splints have strong friction, the kinetic energy into heat energy, within 10 meters can effectively buffer braking; Flexible deceleration energy absorber design, advanced technology, large energy absorption, so that the damage degree of the car is reduced to the minimum;

The control device has the function of self-check to inspect the working conditions of each component, especially the position of the car barrier self-check, to avoid the wrong action of the device to the maximum extent, and can effectively intercept the derailment of the sports car;

Off-line work function: when 1 or several gears in the sports car protection system fail, the system makes the fault block in the off-line state, does not affect the normal operation of other block;

Main technical parameters