The so-called belt scale is a measuring instrument installed on a belt conveyor to dynamically weigh materials passing through the belt. Strictly speaking, the belt scales that can perform dynamic weighing of materials on belt conveyors are mainly divided into nuclear belt scales, laser belt scales, and electronic belt scales based on different measurement principles.
The nuclear belt scale uses the attenuation law of gamma ray transmission to measure the mass and thickness of materials. It is a non-contact measurement method with many advantages, but also has significant disadvantages. Firstly, there is a shape error, which leads to low accuracy. Secondly, there is a radioactive source and radiation, which requires special record management and does not comply with environmental protection concepts. It is now rarely used;
The laser belt scale uses laser images to measure volume online, but it cannot accurately measure the weight of materials in situations where the packing density changes greatly.
At present, electronic belt scales are widely used, which can be used for weighing solid bulk materials in various applications such as chemical, coal, power plants, cement, building materials, etc. Even now, when it comes to belt scales, it refers to electronic belt scales. So, what exactly is an electronic belt scale? What are her characteristics and application advantages?
What is an electronic belt scale?
Electronic belt scale is a contact type measuring device composed of several components such as scale frame, high-precision weighing sensor, speed sensor, microcomputer controlled display instrument, etc. It can continuously and dynamically weigh and measure solid materials without absolute limitations on material volume, density, etc.
The electronic belt scale is installed on the belt conveyor frame. When the belt conveyed material passes through the weighing area of the belt scale, the weighing sensor will obtain a voltage signal proportional to the load of the belt conveyed material. The speed sensor provides a series of pulse frequencies proportional to the belt speed. The control display instrument receives and processes the load signal and speed signal in real time, and calculates the instantaneous flow value and cumulative flow value through calculation and display.
What are the characteristics and application advantages of electronic belt scales?
From the principle and working process of the electronic belt scale mentioned above, it can be seen that it has a simple structure, no restrictions on the volume and density of materials, a wider range of adaptability, continuous and automatic weighing, and high weighing efficiency.
The material on the belt conveyor can be continuously weighed by the electronic belt scale during the conveying process, without stopping the operation of the belt conveyor or requiring manual participation. It achieves continuous and automatic measurement, greatly improving the efficiency of weighing work.
The structure of electronic belt scales is becoming increasingly simplified, installation and debugging are simple, and the instrument adopts menu guidance and prompt operation, which is simple and easy to use. The suspended electronic belt scale has a small horizontal surface and requires minimal maintenance work; The instrument has functions such as one click calibration, making the calibration operation convenient and fast. High precision matrix scale frame structure, equipped with digital sensors, with high measurement accuracy and stability.
In addition, the electronic belt scale instrument has a high degree of informatization, realizing real-time processing, display, and transmission of measurement data, and completing remote communication with the upper computer. Remote users can view real-time measurement data, real-time operation of the belt scale, and remotely set parameters through the upper computer software system.
The electronic belt scale has a simple application principle, simplified structure, wide application range, easy installation and debugging, simple operation, high measurement accuracy and stability, and is convenient for information management. It has become a common dynamic measuring device for industrial solid bulk material weighing.
