Automatic control system for blast furnace feeding

Abstract

The invention relates to an automatic control system for blast furnace feeding, which sends a control instruction to blast furnace feeding equipment through a cache data area of an external I/O port thereof and receives the state feedback of the blast furnace feeding equipment. The system is characterized in that the system is also connected with an automatic control simulation system for blast furnace feeding through an external data exchange storage area thereof and sends a control instruction to the automatic control simulation system for blast furnace feeding, and the automatic control simulation system for blast furnace feeding simulates a state feedback signal which is under the control instruction and comprises the operation state of the blast furnace feeding equipment and the state of movement position of materials, and feeds back the state feedback signal to the automatic control system for blast furnace feeding. The automatic control system for blast furnace feeding can completely break away from actual process equipment through the simulation and integrally simulate the production state of an actual feeding process system of a blast furnace, can also control the actual technological production process, and can conveniently switch between the operation simulation and the control of the actual technological production process.

Description

technical field [0001] The invention relates to the field of automatic control of industrial blast furnace smelting and the field of simulation. Background technique [0002] Large-scale blast furnace distribution and feeding system has many equipments and complex state, which is the key link of blast furnace production. As the core of blast furnace automation, blast furnace feeding and material distribution control, whether it can run stably and efficiently directly affects the quality of molten iron and production of the entire blast furnace. efficiency and economic benefits. [0003] At present, in the field of industrial control, the basic automatic control of the system is realized through the programmable logic controller (PLC), and the operator operates through the operation station, and the debugging of the PLC control system is carried out through field equipment for no-load test run and Thermal load test run to adjust and improve the automatic control system. How...

AI Technical Summary

Problems solved by technology

However, the particularity of blast furnace production determines that the material cannot be fed into the blast furnace before ignition, that is, the automatic system cannot be tested for thermal load before ignition, and the operator cannot be trained in actual production operations. However, once the blast furnace is ignited, it will be It is necessary to ensure that the entire system runs stably and efficiently according to the recipe, and the recipe is the most complex and changes frequently when the furnace is turned on, and this is also the time when the operator is most unfamiliar with the automatic control system

This inherent contradiction often affects the smooth commissioning and rapid production of the blast furnace, causing confusion during the furnace start-up and ignition, seriously affecting the normal production at the initial stage of the furnace start-up, and causing waste of coke, ore and other resources.

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