Coal production is large, weighing and measurement are difficult, and management and on-site separation make measurement management difficult. Using a belt scale for weighing can not only quickly measure, but also provide data for management.
However, the underground environment of coal mines is special, containing flammable and explosive substances such as gas and coal dust. The electrical equipment used in it must have explosion-proof performance. The mining explosion-proof belt scale is precisely this type of equipment used in coal mines to complete the measurement of coal transportation underground.
The explosion-proof belt scale for mining plays an irreplaceable role in the measurement operation of coal enterprises and has unique advantages. It has become an indispensable part of automation in coal mining enterprises.
Practical application characteristics of mining explosion-proof belt scale
(1) Safe, reliable, and stable
The instruments, sensors, and circuit parts of the mining explosion-proof belt scale are all designed with intrinsic safety, and can be applied to the harsh environment of flammable and explosive underground mines. In addition, the explosion-proof belt scale adopts a stainless steel shell with a sealed design, effectively resisting the influence of moisture and dust accumulation on the operation of the belt scale. In short, the explosion-proof belt scale can work safely, reliably, and stably in underground mines in terms of material, structure, and application technology.
(2) Good dynamic zero stability
According to numerous practical application cases summarized by Guonuo Technology, the zero adjustment time, continuous zero adjustment time, and actual zero adjustment results of the mining explosion-proof belt scale are all very small, indicating that the zero point of the belt scale is relatively stable.
(3) Instantaneous flow fluctuation is small
The instantaneous flow displayed by the explosion-proof belt scale instrument is very close to the actual conveying value of the coal conveyor belt, and the instantaneous flow fluctuation is small. The measurement accuracy and stability meet the requirements of coal measurement.
(4) Accurate speed encoder
The signal stability and accuracy of the speed encoder are directly related to the measurement results, especially when facing large inclination angles of the conveyor. Through practical application cases, it has been found that under certain tilt angles, the speed encoder drum and belt operate completely synchronously, and the speed signal is stable and accurate.
(5) The weighing instrument has good performance
The display interface of the explosion-proof belt scale instrument adopts a Chinese menu, which is very easy to calibrate and calibrate, and can be adjusted with one click. In addition, the instrument can store a large amount of measurement data and perform queries.
Application function of mining explosion-proof belt scale
(1) Remote control function: The underground belt scale can be directly managed and operated from the ground control room, without the need to go to the underground usage location to open the instrument explosion-proof shell for illegal operations.
(2) Measurement data protection function: The intelligent computer in the underground scale body also has a short-term measurement protection function, ensuring that in the event of a power outage or communication terminal in the host system, each scale in the scale body part forms its own system, independently calculates and remembers the production during the disconnection period. After the host system or communication is restored, the data is transmitted to the host and automatically accumulated.
(3) Display function: The main display functions include: displaying the device name, operating status of the belt conveyor, flow rate, load, instantaneous flow histogram, and running time of the belt conveyor on the main screen.
(4) The data query function includes: shift cumulative measurement, daily cumulative quantity, monthly cumulative quantity, total cumulative quantity, flow history curve, historical record query, etc.
(5) Remote network browsing function: The mining explosion-proof belt scale is connected to the coal mine network to achieve data sharing. The upper computer software system is configured, and the mine leader can remotely browse the production status and command from the office.
(6) System access function: The mining explosion-proof belt scale has an information interface that can be connected to the production monitoring system, providing raw and accurate data for coal mine production monitoring and preventing overcapacity production.
