Dynamic-static interaction metering system and metering method

Abstract

The invention firstly provides a dynamic and static interaction metering system. The system comprises two or more metering bins, feeding equipment and a control system, wherein each metering bin is provided with a weight sensor, and a bin bottom valve is arranged below each metering bin and used for controlling materials in the metering bin to be unloaded or loaded; and the feeding equipment is configured to be the feeding equipment with two paths. The invention further provides a metering method of the dynamic and static interaction metering system. According to the dynamic and static interaction metering system and the metering method, the metering functions of ship unloading and ship loading are integrated, and the system and the method can be suitable for material ship loading and unloading of large ship loaders and ship unloaders. The metering system is large in layout, large in flow, stable, reliable, higher in adaptability, lower in cost and higher in efficiency; and the weightis not obtained by weighing and peeling by the weight sensor at a time, but is obtained by respectively weighing between the full bin and the empty bin of the metering bin, so that the precision is higher.

Description

technical field [0001] The invention relates to a metering system, in particular to material conveying and online weighing equipment at a bulk material transfer station, and a metering method of the metering system. Background technique [0002] In recent years, the bulk cement industry has developed very rapidly, which provides a rare opportunity for the distribution and construction of bulk cement transfer stations. Bulk cement and other materials are dry bulk materials, and the loading capacity of the shipping method is increasing, and the flow rate of the conveying equipment required for loading and unloading is also increasing. Therefore, there is currently no measurement method suitable for its process characteristics, and it is often used The hull water gauge weighs, but the measurement accuracy of this traditional measurement method is low, and it is only suitable for the measurement requirements of miniaturization. [0003] The existing unloading metering device, s...

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Problems solved by technology

[0003] The existing unloading metering device, such as the technical solution disclosed in Chinese patent CN103499378, has a single structure of the metering device, and the metering device only measures the weight of the unloaded material, and does not calculate the difference between the original quality of the silo, and its accuracy is low;

[0004] Another example is the technical solution disclosed in the Chinese patent CN110395359. Its measurement method only weighs the total amount of the metering bin, and does not weigh the empty metering bin after unloading, ignoring the residue after each unloading or the residue before unloading. The impact on the weight of the material is not high, and the measurement method cannot realize the joint work and cycle work of multiple or single measurement bins, and the number of feeding and unloading of the measurement bins in a unit time is not accurately calculated. Continuous feeding and unloading will place a heavy load on the machine and affect the service life of the equipment. In addition, there is no control over the feeding flow (incoming material flow) and unloading flow during the working process, and it is impossible to calculate these flows, which is easy to exceed Load operation will cause problems such as material blockage and machine deformation, and may cause overloading of the load cell, resulting in damage to the load cell, affecting the measurement accuracy, and also affecting the service life of other parts of the equipment

[0005] Moreover, with the great development of shipping volume and modern logistics industry, it is difficult for the existing technology to adapt to actual needs

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