What are the practical issues of mining electronic belt scales and how to solve them?

In coal mining enterprises, electronic belt scales are widely utilized for measuring and monitoring raw coal production in mines, coal washing measurement in coal washeries, coal consumption for boilers, etc. They provide accurate measurement data for coal mine production monitoring, safe production, energy conservation and emission reduction, and quota management. Compared to belt scales used in other settings, mining electronic belt scales face more issues, with their accuracy and stability closely related to various factors, including product and installation quality, as well as poor installation and operating environments, frequent use, and extended operational duration.

The main issues faced by mining electronic belt scales in practical applications and their effective solutions are outlined below:

1. Poor Installation Environment for Mining Electronic Belt Scales

   Electronic belt scales are highly sensitive and easily affected by environmental and installation conditions in practical use. To enhance the accuracy and reliability of mining electronic belt scales, focus should be on the scale's performance, quality, and installation. Manufacturers should design and manufacture scales based on the actual mining environment, with reinforced scale frames to accommodate conveyor inclinations, sensors, and instruments with strong anti-interference capabilities, and, if necessary, tensioning and anti-deviation devices should be installed. Additionally, the installation of mining electronic belt scales must be reasonable, with the installation position selected at an appropriate measurement section, away from vibration sources and heavy machinery, and in a section with gentle belt movement and minimal tension changes.

2. Difficult On-site Verification of Mining Electronic Belt Scales

   Verification is a crucial means of maintaining the accuracy and reliability of electronic belt scales during practical use. However, the environment where mining electronic belt scales are used is often cramped, making physical verification labor-intensive, inefficient, and disruptive to production. Implementing simulated verification methods is an effective solution. Depending on the situation, simulated verification methods such as chain code can be selected and installed on the upper part of the conveyor or within a concealed box, saving installation space, offering high automation, precise verification, and simple operation, allowing for one-person completion. The scale's instrument can be verified with one click, replacing the need for physical verification of mining electronic belt scales.

3. Non-compliant Operations of Mining Electronic Belt Scales in Practical Applications

   The actual application sites of mining electronic belt scales are often far from management departments, weakening regulatory capabilities and potentially leading to non-compliant operations. For example, placing heavy objects on the scale frame can result in biased coal measurement; some scale instruments lack permission settings, allowing on-site personnel to arbitrarily set parameters (such as measurement range), distorting the displayed data. To address these human operation issues, coal mining enterprises should select belt scales with comprehensive instrument functions when purchasing, such as those with permission settings, to prevent unauthorized personnel from operating and to record operators. Furthermore, coal mining enterprises should establish strict measurement management systems, provide training for operators, strengthen dynamic inspections, and set calibration schedules.