The basic principle of weightlessness scale
Weightlessness scale is the weighing and material equipment of the production line. In the whole process of dynamic and continuous weighing, weightlessness scales are commonly used. It can carry out weighing and quantitative analysis and manipulation of raw materials that must be continuously fed, as well as the instantaneous total flow and cumulative total flow of the raw materials. Weight loss scales are usually static data weighing equipment, choose static data weight loss scale weight technology and warehouse scale weight technology with weight sensor. As everyone knows, in the weightlessness scale control panel, in order to better obtain the instantaneous total flow of raw materials, a weight coefficient is developed for the weightlessness state rate per unit time. When the weighing warehouse is empty, the valve can be opened. When the aspect ratio is reached, close the charging valve and replace the weighing box with a scale. Support point. In order to accurately weigh the weight, the left and right parts of the weight warehouse are connected by convenient inlet and outlet pipes. The net weight of the front, back, left, and right mechanical equipment and internal raw materials cannot easily be added to the weight warehouse. Each circulation system consists of two circulation systems: when the weighing warehouse is empty, the filling valve is opened, and the net weight of the weighing warehouse rises again. When the time T1 reaches a large level, the charging valve is closed. When the screw conveyor just started loading and unloading goods, the fat-reducing scale started to work. After a period of time, the net weight of the weighing hopper continues to drop. When the T2 time reaches a small level, the filling valve opens again. The time T1~T2 is the power supply circulation system. After a period of time, the net weight of the weighing box continues to rise. When the T3 time achieves high quality again, the expansion valve is closed, and the cycle time from T2 to T3 is the reload cycle system, repeat. In the force supply circulation system, the speed of the screw conveyor is operated according to the instantaneous total flow. During the supply cycle time for stable supply, the speed of the screw conveyor is maintained at the speed before the start of the circulation system, and the speed of the screw conveyor is at a stable volume. The monitoring method of the flow rate is provided. Because the weight loss scale adopts the close combination of dynamic weight and static data weight, intermittent feeding and continuous pollution are closely combined, the structure is easy to seal, and it is suitable for the weight and seasoning of fine sand raw materials such as concrete, quicklime powder, pulverized coal, food, pharmaceuticals, etc. Material operation can achieve high weight accuracy and linearity.