As the name implies, electronic belt weigher is a measuring device that automatically and continuously weighs bulk solid materials transmitted on the belt conveyor. Its main components are weighing bridge, weighing sensor, speed sensor, weighing display, etc.
The specific working principle is that when weighing, the weight bearing device transfers the gravity of the material on the belt to the weighing sensor, which outputs the voltage (mV) signal proportional to the gravity of the material, which is amplified by the amplifier and then sent to the analog/digital converter to become a digital quantity A, which is sent to the arithmetic unit; After the material speed is input into the speed sensor, the speed sensor outputs the pulse number B and also sends it to the arithmetic unit; After calculating A and B, the material quantity of this measurement cycle is obtained. The total amount of materials continuously passing through the belt can be obtained by accumulating each measurement cycle.
The weighing frame structure of the electronic belt weigher bearing device is mostly multi idler type. We install the weighing frame under the belt of the running belt conveyor. When there is material passing through the belt conveyor, the weight of the material will produce a certain pressure. The idler on the weighing frame uses the lever principle to apply the pressure to the weighing sensor in the weighing frame, The voltage signal corresponding to the material weight per unit length of the belt conveyor is generated, and the speed sensor on the belt conveyor measures the signal corresponding to the belt running speed. The weighing display controller, under the control and command of the program software, settles the two signals by means of integral calculation, so as to obtain the instantaneous flow and cumulative weight of the materials on the belt conveyor, and displays the instantaneous flow and cumulative weight on the weighing display in a digital way.
At present, the weighing control display instrument of the electronic belt scale only works in the metering mode, and the control function has been completely replaced by the computer system. The operator can directly use the computer system to carry out a series of control operations such as monitoring, zero adjustment, automatic interval calibration, linear compensation, maintenance and fault diagnosis.
The above is the brief information of the belt weigher manufacturer. I hope it can help you.
