Blast furnace under-groove coke weighing control system without dispersing hopper

Abstract

The invention discloses a blast furnace under-groove coke weighing control system without a dispersing hopper. The system comprises a control module and a centralized weighing hopper, wherein the control module successively controls a feeding machine, a vibrating screen and a coke belt to stop so that a material stored in a storage tank is fed to the centralized weighing hopper; and the centralized weighing hopper discharges the material according to the material under the control of the control module. In the blast furnace under-groove coke weighing control system without the dispersing hopper, a double-lead system is constructed according to an actual coke weighing curve without the dispersing hopper, thus the accuracy of weighing is ensured and a large amount of materials are not accumulated on the feeding equipment and the feed belt so as to prolong the service life of the equipment; and a self-correct system is constructed for factors influencing the accuracy of weighing, such asweighing back value, the lead and the like, thereby maximally ensuring the accuracies of single weighing and total feeding mass.

Description

technical field [0001] The invention relates to the technical field of blast furnace tank discharge control, in particular to a coke weighing control system under a blast furnace tank without a dispersing bucket. Background technique [0002] In recent years, in order to save land and investment, the supply of blast furnace coke has canceled decentralized weighing and only retained centralized weighing. Under the new method, the shape of the coke weighing curve has been greatly changed, resulting in the incomplete application of the original weighing control system. [0003] figure 1 It shows the coke weighing characteristic curve in the existing dispersed weighing. In order to ensure the accuracy of the coke weight in the centralized weighing hopper, the traditional system generally adopts the method of setting "full lead" to improve the weighing accuracy, that is, in When the weighing is about to reach the target value, stop the feeder in advance, and complete the weighi...

AI Technical Summary

Problems solved by technology

Under the new method, the shape of the weighing curve of coke has been greatly changed, which makes the original weighing control system not fully applicable

[0003] figure 1 It shows the characteristic curve of coke weighing in the existing dispersed weighing. In order to ensure the accuracy of the coke weight in the centralized weighing hopper, the traditional system generally adopts the method of setting "full lead" to improve the weighing accuracy, that is, in Stop the feeder in advance when the weighing is about to reach the target value, and complete the weighing of the remaining mass through the inertial aftervibration of the equipment, but this method is no longer applicable under the new process of only centralized weighing

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