Electronic Belt Scale: Automatic Weight Measurement Solution for Bulk Solids

In mining, power generation, building materials, cement, trade logistics, and other fields, belt conveyors are essential for short-distance material transportation. The electronic belt scale is installed on a section of the belt conveyor to measure the instantaneous and cumulative flow of the transported material.

Transporting various bulk solids via belt conveyors involves large volumes, varying sizes, and inconsistent densities. Scales that measure weight based on volume and density are more suitable for materials with standard volumes and uniform densities.

The electronic belt scale, however, does not require detailed classification of the material's quality, standardized volumes, or absolute density requirements. It can continuously and automatically measure the weight of bulk solids on the conveyor belt without interrupting its motion.

The structure and principle of the electronic belt scale are relatively simple, mainly consisting of a weight sensor, a speed sensor, an instrument, and a scale frame.

The scale frame serves as the weighing unit and force transmission structure of the belt scale.

The weight sensor, installed on the scale frame, captures the load signal from the material on the belt.

The speed sensor collects real-time belt speed and converts it into an electrical signal.

The instrument receives both the load and speed signals in real-time and processes them to calculate the instantaneous and cumulative flow of the material.

The automatic and continuous measurement process of the electronic belt scale eliminates the need for manual operation, reducing human error and significantly improving measurement efficiency while lowering labor costs.

Since its introduction, the electronic belt scale has been well-received, but it also faces challenges in terms of measurement accuracy and stability. However, with technological advancements, modern electronic belt scales have seen significant improvements in these areas.

Digital weight sensors have replaced analog ones, offering stronger anti-interference capabilities for signals, ensuring accurate and stable signal transmission, and featuring functions such as lateral force resistance, overload protection, and temperature compensation.

Unique force-sensing structures in speed sensors, with dual wheels replacing single wheels, ensure reliable contact with the belt for true speed reflection. Microcomputer-based high-performance belt scale instruments with multithreading capabilities provide real-time signal processing for material weight calculation.

Apart from lever-type structures, scale frames also come in suspension-type designs. The new high-precision belt scales adopt matrix structures, forming a high-accuracy measurement platform. These structural innovations greatly contribute to improving the accuracy and stability of belt scale measurements.

In harsh industrial environments where electronic belt scales may be affected by electromagnetic interference and mechanical vibration, belt scale substations are used to optimize sensor signals.

The application of information technology and computer software technology in electronic belt scales provides users with real-time and historical data support for measurement management and production management. The instrument is equipped with a communication interface that can be connected to the enterprise network for real-time communication with the host computer. Users can view real-time measurement data and operational status of each belt scale through the host computer software, enhancing production management.

In summary, the electronic belt scale offers strong adaptability to materials and belt conveyors, high measurement accuracy, easy operation, and provides users with measurement and equipment operation data. It is an ideal solution for bulk material measurement in various aspects.