Communication centralized control system for fully mechanized mining working face

防爆标志：

EXIB I MB

System Overview The mining working face communication control system adopts industrial and embedded technology as a whole. The human-machine interface uses a display terminal, and the host computer uses an explosion-proof computer. It can realize underground excavation along the trough belt, mining working face along the trough belt, and main transportation belt. As well as the protection, control, line communication, fault detection, display and alarm functions of coal washing plant belts, etc., it has a standard Ethernet interface and interface. From small belts to main transport belts, from a single transport belt to all fixed belt conveyor transport systems in the entire mine, from simple head-to-tail laps to T-shaped and mountain-shaped laps, from equipment start-stop control to operating current, voltage display, belt speed A complete set of solutions can be provided for detection and display, coal bunker coal level detection and display, high and low coal level shutdown motor temperature, operating frequency, fan status, etc., as well as computer remote transmission and communication fault self-diagnosis.
Mining working face control system
, system functions
Control and alarm functions
●Computer centralized control
The operator can start the underground equipment directly through the mouse in the well. Stop operation, and can realize single start, single stop and start, combined stop and single start, combined stop and start, single stop and other operations of the equipment according to actual needs,
●Manual on-site control
On-site In this mode, the operator controls the start and stop of the coal mining face crusher, loader, front conveyor, rear conveyor, emulsification pump station, clean water pump station and each belt respectively.
●Control of maintenance methods
During the maintenance stage of underground equipment, the chain relationship of each equipment can be broken, and any equipment can be started and stopped at any time and at will.
●Jog mode control
Each controlled equipment often jogs the motor during maintenance and debugging. This working mode can realize the jog of a single motor.
●It has the function of blocking each other in the same direction of coal flow, which can stop the coal flow and open against the coal flow.
●Emergency stop can be achieved by pressing the emergency stop button along the line, and the emergency stop position is displayed.
●Voice alarm before starting and stopping. There are voice alarms during the starting and stopping process and for each protection signal.
●With magnetic starter load current detection and display functions, it can realize voice alarm when the motor is overloaded.
●Reliable locking between various control modes.
Display functions
●Color LCD screen displays graphics, animations and Chinese characters
●Statistics and display of the power-on rate of the controlled equipment
●Graphics and animation display of the operating status of the controlled equipment
/> ●Chinese character prompts for the operating status of the controlled equipment
●Lock position display along the line
●Cable break detection and break position display along the line
●Dynamic display of the entire system working conditions and main protection on the computer screen , parameters and relevant information about the operation of each belt.
Protection functions of mining face control system
●The system has continuous speed detection. By detecting the system's own speed sensor signal, slip, overspeed, underspeed and belt break protection can be implemented. After setting the alarm value and shutdown value of each continuous quantity in the parameter menu, once the alarm value is reached, it will automatically alarm; if it exceeds the shutdown value, it will automatically shut down (of course, it can also be set to only alarm and not stop).
●The system is equipped with switching sensors such as coal stacking, deviation, smoke, and ambient temperature. It can detect and protect coal piles, deviations, smoke, ambient temperature, etc. And realize alarm shutdown (of course, it can also be set to only alarm and not shut down).
Voice communication function
Through this system, staff can talk to each other, which facilitates equipment maintenance and communication. At the same time, half-duplex communication with the ground along the belt can be achieved through dispatch telephone.
Expansion functions
The controller has spare capacity and interfaces, which can be easily expanded.
All detection input signals of the system
Switch values and analog values (~~~) are selected by parameter settings.
Flexible parameter setting and password protection function
●The control box has all detection and control parameter adjustment functions on-site.
●The password protection function can be set directly through parameter adjustment
Features of the mining face control system
●The first domestic product of its kind to use Siemens intrinsically safe type for logic control, which greatly Improve system reliability.
●The human-machine meeting uses an embedded computer and an LCD display.
●Using fieldbus for data transmission, effectively improving communication distance and transmission reliability.
●Due to the intrinsically safe type, it can easily realize the collection of various switching and analog signals, and reduce various /, /, and other conversion circuits.
●The lower computer is equipped with a large LCD screen and intrinsically safe type to prevent blind opening of each device.