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Real-time solution
Mining centralized control solution
KTC158 mining face communication control system adopts industrial PLC and embedded technology as a whole, man-machine interface adopts 12.1-inch TFT display terminal, upper computer adopts explosion-proof computer , and mining face control system can realize underground tunneling along the belt and coal mining work The protection, control, conversation along the line, fault detection, display and alarm functions of the surface-slot belt, main transportation belt and coal washing plant belt, etc. The mining working surface control system has standard Ethernet interfaces, RS485 and RS232 interfaces. From small belts to main conveyor belts; from a single transport tape to all fixed conveyor belt conveyor systems in the entire mine; from simple head-to-tail lap to "D" and "mountain" lap; from equipment start to stop control Working current, voltage display, belt speed detection and display, coal bunker coal level detection and display, high and low coal level shutdown; motor temperature, operating frequency, fan status, etc. detection and display and computer remote transmission communication; fault self-diagnosis, etc. Provide a complete solution.
Function of control system for mining face
(1) Control and alarm function
Computer centralized control
The operator can directly start and stop the downhole equipment through the mouse on the shaft, and can realize the single start and single stop of the equipment according to the actual needs; joint start and joint stop; single start and joint stop; joint start and single stop, etc.
Start and stop control of conveyors, emulsification pumping stations, clean water pumping stations and various tapes.
Maintenance mode control
During the maintenance phase of underground equipment, the chain relationship of each equipment can be broken, and any equipment can be started and stopped at any time.
Jog mode control
The controlled equipment often needs to jog the motor during the maintenance and debugging process. This working mode can realize the jog of a single motor.
It has the function of blocking each other in the same coal flow direction, realizing the stop along the coal flow and the reverse coal flow.
The emergency stop can be realized by pressing the emergency stop button along the line, and the emergency stop position is displayed.
Voice alarm before start and stop: voice alarm is provided for the start and stop process and each protection signal.
With load current detection and display function of magnetic starter, when the motor is overloaded, voice alarm is realized.
There is reliable locking between various control methods.
(2) Display function
12.1 Color LCD screen is displayed with graphics, animation and Chinese characters
Statistics and display of boot rate of controlled equipment
Graphic and animation display of the operating status of the controlled device
Chinese character prompt for controlled equipment running status
Blocking position display along the line
Cable breakage detection along the line and display of broken position
On the computer screen, the whole system working conditions, main protection, parameters and the related information of each belt operation are displayed dynamically.
(3) Protection function of mine working face control system
Mine working face communication control system with continuous quantity detection of speed. Through the detection of the speed sensor signal provided by the system, slip, overspeed, underspeed and broken band protection can be carried out. After setting each continuous alarm value and shutdown value in the parameter menu, once the alarm value is reached, it will automatically alarm, and if it exceeds the shutdown value, it will automatically shutdown (of course, it can also be set to only alarm and no shutdown).
The system is equipped with on-off sensors such as coal pile, deviation, smoke, and ambient temperature. It can detect and protect coal pile, deviation, smoke, ambient temperature, etc. And realize the alarm shutdown (of course, it can also be set to only alarm, not shutdown).
(4) Voice communication function
Through the working surface centralized control system, the staff can talk with each other, which is convenient for equipment maintenance and communication, and at the same time, it can realize half-duplex communication with the ground along the belt through scheduling.
(5) Extended functions
The controller reserves spare capacity and interfaces, which can be easily expanded.
(6) All detection input signals of the system
Switching value and analog value (1～5V; 4～20mA; 200～1000Hz) are selected by parameter setting.
(7) Flexible parameter setting and password protection
The KTC158 control box is equipped with all detection and control parameter adjustment functions on site.
Password protection function can be set directly through parameter adjustment
Characteristics of the control system for mining face
The first of its kind in China adopts Siemens intrinsically safe PLC for logic control, which greatly improves the reliability of the system.
Man-machine meeting adopts embedded computer plus 12.1-inch TFT LCD display.
The field CAN bus is used for data transmission, which effectively improves the communication distance and the reliability of transmission.
Due to the use of intrinsically safe PLC, the communication control system of the mining face can easily realize the collection of various switching and analog signals, reducing various V/F, I/F and other conversion circuits. The lower computer has an 8-inch LCD screen and an intrinsically safe PLC to prevent blind opening of various devices.