Batching belt weigher shaft breakage detection and alarm system

Abstract

The invention discloses a batching belt weigher shaft breakage detection and alarm system which comprises an upper computer and a PLC slave station. The upper computer is used for sending shaft breakage judgment parameters to a PLC main station, and the PLC slave station is used for sending collected batching belt weigher operation signals and instantaneous flow rate to the PLC main station in real time. After the PLC main station receives the batching belt weigher operation signals, the PLC main station will value the batching belt weigher instantaneous flow rate sent by the PLC slave station according to the valuing time frequency set by the upper computer to obtain a comparison value, the comparison value is subtracted from the instantaneous flow rate to obtain the absolute difference value of the result, the absolute difference value is compared with a shaft breakage judgment value set by the upper computer, and the PLC main station will sends a shaft breakage alarm signal to the upper computer when the absolute difference value is larger than the shaft breakage judgment value and the lasting time is longer than the shaft breakage judgment time set by the upper computer; and the upper computer will give an alarm after receiving the shaft breakage alarm signal. The batching belt weigher shaft breakage detection and alarm system has the advantage that shaft breakage detection can be carried out on a batching belt weigher in real time.

Description

technical field [0001] The invention relates to the technical field of batching belt scales, in particular to a broken shaft detection and alarm system for batching belt scales. Background technique [0002] The batching belt scale is the key equipment in the production process of sintering, pelletizing and other furnace materials. Its main working principle is: the speed sensor installed on the driving motor of the batching belt scale detects the speed signal, and the weighing sensor installed on the batching belt scale frame detects the speed signal. Weight signal, calculate the instantaneous flow rate of the batching belt scale through the speed signal and weight signal. [0003] The stability and reliability of the operation of the batching belt scale will directly affect the stability of the charge production process and the chemical composition of the finished charge. However, in the actual production process, the batching belt scale will be disturbed by various facto...

AI Technical Summary

Problems solved by technology

However, in the actual production process, the batching belt scale will be disturbed by various factors and affect its normal batching. The weight of the material on the belt still acts on the load cell, and the speed sensor installed on the drive motor of the belt scale can still detect the speed signal, resulting in the instantaneous flow output of the belt scale, which in turn leads to deviations in actual ingredients; If the failure of the broken shaft of the belt scale is not found for a long time, it will cause a large number of finished furnace materials to be unqualified, resulting in serious production quality accidents

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