The loss-in-weight scale instrument is a kind of weighing equipment with intermittent feeding and continuous discharging. Because the loss-in-weight control is carried out in the hopper, it can achieve high control accuracy and the structure is easy to seal. Compared with the scale, it is a big improvement. It is suitable for the control and batching of cement, lime powder, coal powder and other fine materials. At present, the continuous mixing equipment in my country adopts the volume method or belt scale, and two types of spiral scales to measure. The measurement accuracy of belt scales in the highway industry can generally only reach about 5 percent, which is almost the same as the volume measurement, and the long-term stability is poor.

How the weightless scale meter works:

1. Batch quantitative ingredients

Weightless scale instrumentThe single batching accuracy is high, and the error range is within 1‰. It is a method of intermittent feeding. It is used in batch process production technology;

2. Continuous and uniform batching (flow control method)

The error is controlled within the dynamic range of 1‰5‰. The production efficiency is extremely high, and it can achieve continuous batching, continuous mixing, and continuous discharging without any pause in the middle. It is used in the continuous process production process;

3. Batch feeding with flow control

Combined with the characteristics of the above methods, the flow rate control of the materials added to the downstream device is realized, and the materials of the specified quality are met. It is applied to the batch process production process that has speed requirements for ingredients.

With the rapid development of electronic control technology, the weightless scale instrument adopts new technology to increase the measurement accuracy from 0.3% to 0.5%, to 0.1% to 0.2%, and even to exceed static scales. The core of this new technology is digital Application of load cells.