The batching scale instrument adopts the same measuring equipment. Regardless of the measurement error, it can ensure that the materials are added in proportion, but it is difficult to ensure the accuracy of the small proportion of materials. After the measured materials are concentrated, they generally form layers or segments. It is distributed in the shape of a batch, and is transported to the material receiving port by the conveying equipment (such as a belt or a trolley), and then enters the next process, that is, the batching of a batch of materials is completed. Manufacturers can adopt a parallel method in the control process, so it can save the feeding time and improve the feeding speed.

Types of batching scale instrumentation systems

1. Master-slave distributed control microcomputer batching system

Dosing scale meterThe design of the control system adopts a master-slave structure, which connects multiple single-chip microcomputers into a powerful system, which can be applied to large concrete batching stations, and can batch up to 9-12 kinds of materials at the same time.

2. Automatic batching system of loss-in-weight scale

In the chemical, building materials, metallurgy and other industries, continuous batching of various materials is often required, so weightless scales are often used. Since the weightless scale body is based on the structure of the bucket scale, the batching scale instrument factory can directly perform weight calibration. The actual discharge amount is calculated by testing the instantaneous weight of the scale bucket, and then closed-loop adjustment is performed, so that a higher control accuracy can be achieved. Generally speaking, the accumulative accuracy is 0.5%. Also much easier than belt scales.

3, rate value batching system

Rate value batching is not a new concept. As early as 1987, Liu Duxin, an engineer from the Henan Silicate Society, put forward the concept of rate value batching in the research on the formula of cement raw meal batching formula published by Henan Building Materials University. In 1991, he also published a special Considering that the rate value formula method of raw cement ingredients is greater than that, various methods of raw meal feedback and callback are discussed in detail, and it is proved that when the raw material composition fluctuates, the rate value of raw meal 3 cannot be stabilized by single control of CaO and Fe2O3, and the rate value is further clarified. The concept of ingredients. He did not stop at revealing the defects of calcium-iron control, but further studied 6 kinds of callback methods, and proposed the best callback method with qualified guarantee rate under calcium-iron control, which avoided the calcium-iron control to the greatest extent possible. The callback method commonly used in cement plants is actually the method advocated by engineer Liu Duxin. Since then, there has been no new breakthrough in the theory of rate-value batching. The basic assumption of current rate-value batching is: to achieve rate-value batching, it is necessary to measure Raw material silicon, iron, aluminum, calcium 4 chemical components.

The batching scale instrument is widely used in cement, glass, metallurgy, chemical industry, grain, feed and other industries. The batching scale instrument is composed of multiple scales, and the control method is usually intermittent blanking, static measurement, that is, the batching starts to start all feeding electric vibrators At the same time, the computer performs dynamic monitoring. The batching equipment is preferred by the National Building Materials Bureau, and its application effect is better than that of various cantilever and speed-adjustable belt scales. The system is characterized by static emphasis, high precision, simple structure, high reliability, dust-proof nodes, and low cost. , Easy to operate, suitable for national conditions, can be controlled with mill load, component detection system closed-loop control, has been widely used in cement, glass, chemical industry batch measurement.