Dynamic control system and method for batching accuracy of concrete mixing plant

Abstract

The invention belongs to the technical field of concrete engineering and relates to a dynamic control system and method for the batching accuracy of a concrete mixing plant. The dynamic control system comprises a batching device, a weighing sensor, a batching instrument (namely a PLC) and an industrial control computer. According to the control system, dynamic weighing data which is acquired in real time is compared with an expected batching set value (namely a proportioning parameter), the unloading quantity is controlled in a stepped manner by the batching device by virtue of a rough weighing-fine weighing two-stage batching method, and the accurate batching is finished by carrying out inching control and automatically correcting real-time fall by virtue of a cycle control algorithm. The dynamic control system has the outstanding advantages of high batching accuracy and good stability and thus can be applied to concrete and bituminous concrete mixing plants in the field of civil engineering, the real-time automatic control can be realized, the automation degree of the mixing plants can be improved, the batching accuracy and reliability are improved, and the production quality of concrete is guaranteed.

Description

technical field [0001] The invention relates to the technical field of concrete engineering, in particular to a dynamic control system and method for batching precision of a concrete mixing plant. Background technique [0002] With the rapid expansion of railways, highways, ports and urban infrastructure construction, the concrete production industry has flourished. Especially with the rapid development of high-speed railway construction in recent years, everyone's understanding of concrete and quality requirements have been continuously improved, which also makes concrete production technology face severe challenges. Concrete production must strictly control the raw material ingredients according to the design mix ratio to ensure that the various properties of the concrete can achieve the expected goals. Batching is one of the key joints in the concrete production process, and its stability and accuracy directly affect the final quality of concrete. Batching accuracy (bat...

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Problems solved by technology

[0011] In order to solve the problems of insufficient raw material batching accuracy and frequent measurement out of tolerance in concrete mixing plants, and reduce human intervention in the batching process, the invention provides a concrete with high batching accuracy, good reliability, high degree of automation, simple operation and relatively low cost Dynamic Control System and Method for Batching Accuracy of Mixing Station

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