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1. Weight loss scale
In the measurement of bulk materials and online batching, the commonly used continuous methods include belt scales, punch plate flow meters, nuclear scales, and disc feeding scales. Although each has its own characteristics, they have problems such as large mechanical changes, low accuracy, and cumbersome installation. The belt scale calculates the flow rate by integrating the belt speed and load signal. Although it performs well in stable discharge, there is still a gap in measurement accuracy compared to intermittent equipment. Continuous mixing equipment, such as soil stabilization plant mixing equipment, adopts volumetric method or belt scale/spiral scale. Although there are high-precision cases in Europe, such as Germanys Schencks 2% dynamic batching accuracy, in China, due to the limitations of basic industries, the accuracy of belt scales can generally only reach about 5%. Differential reduction scale, also known as weightlessness scale, is an emerging measurement method that is not affected by mechanical changes and is particularly suitable for situations where high precision flow control is required. The weightlessness scale achieves accurate control by continuously sampling the weight changes of the scale body and combining it with PID algorithm. In practical applications, attention should be paid to the range of conveying rates, sensor selection, and mechanical structure design. With the advancement of electronic control technology, the accuracy of weightlessness scales is expected to be further improved. The application of digital weighing sensors, such as self calibration and self diagnosis that cannot be achieved in analog systems, provides higher accuracy and convenience for
2. Working principle and classification of spiral wing water meter
Working principle and classification of spiral wing water meter Introduction: Decrypting the spiral wing water meter, uncovering its mysterious working principle and classification Spiral wing water meter is a common type of water meter widely used in industrial and civilian fields.
. This article will delve into the working principle and classification of spiral wing water meters, helping readers better understand and use this important measuring device.1. Working principle of spiral wing water meter The spiral wing reed blind water meter is a flow meter based on the principle of spiral screw.
. It consists of a spiral screw and a measuring chamber. When water passes through the spiral screw, the slow rotation of the screw will push the screw in the measuring chamber to rotate, thereby achieving the measurement of water flow rate. The working principle of the spiral wing water meter can be summarized as follows: 1. Water flow
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