Data transfer control method between blast furnace feeding system and blast furnace cloth system

A control method and feeding system technology, applied in the direction of electrical program control, program control in sequence/logic controller, clock and funnel arrangement, etc., can solve the problems of complex adjustment process and large adverse impact on blast furnace production, and achieve Effects of improving stability, simplifying furnace top material distribution control system, and reducing influence

Active Publication Date: 2008-12-24
WISDRI ENG & RES INC LTD
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AI Technical Summary

Problems solved by technology

The adjustment process is quite complicated, not only requires operators to be quite skilled in the production and control process, but also the longer the adjustment takes, the greater the adverse impact on the blast furnace production

Method used

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  • Data transfer control method between blast furnace feeding system and blast furnace cloth system
  • Data transfer control method between blast furnace feeding system and blast furnace cloth system

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Embodiment Construction

[0022] As shown in Figure 1, the process method usually adopted by large-scale material-free bell blast furnaces is a batch of coke "C", a batch of ore "O", or a batch of ore "O" and a batch of coke "C". Among them, the ore batch is composed of sintering, pellets and lump ore, etc., and the charging system is O↓C↓ or C↓O↓. A batch of ore and a batch of coke are loaded on the top of the furnace to form a large batch (Charge), which goes round and round. For a 2,000 cubic meter blast furnace, the batch weight of the charge is: coke batch weight 17.5t, ore batch weight 83.3t. Under normal circumstances, 7~8 large batches of materials (Charge) per hour. After each batch of coke / ore reaches the top of the furnace, it is put into the blast furnace body from the distribution chute according to the corresponding distribution method according to the different components of the batch. The composition of the material batch is controlled by the batching parameters, and the distribution ...

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Abstract

The invention provides a data transmission control method between a blast furnace feeding system and a blast furnace distributing system aiming at the problems exist in the matching process of blending parameters of the feeding system and the distributing parameters of the distributing system of the blast furnace; the technical proposal is that the blast furnace feeding PLC stores and circularly reads the blending parameters and the distributing parameters by associating the blending parameters and the distributing diameters, feeding and blending are carried out according to the blending parameters; when coke charge/mine charge of a certain batch enters the body of the blast furnace, the blast furnace feeding PLC transmits the distributing parameters to the blast furnace distributing PLC which carries out distribution according to the received distributing parameters. By adopting the technical proposal of the invention, not only the relative independence of the control process of the feeding system and distributing system can be ensured, but also the strict matching of the blending parameters, the distributing parameters and the actual production state can be guaranteed; simultaneously, even under various failure conditions, the strict correspondence of the stepping and circulation of the parameters and the actual technical process can still be guaranteed, thus guaranteeing the normal production of the blast furnace to the utmost extent.

Description

technical field [0001] The invention relates to the field of automatic control of industrial blast furnaces, in particular to the control of the flow direction of blast furnace material distribution parameter data. Background technique [0002] The process of feeding and distributing materials for large-scale blast furnaces is a key link in blast furnace production. The control of feeding and distributing materials for blast furnaces is the core of blast furnace automation. Whether they can operate stably and efficiently directly affects the quality of molten iron, production efficiency and economic benefits of the entire blast furnace. [0003] At present, in order to accurately control the quality of molten iron in production, each coke batch / ore batch must have certain and uniquely determined batching parameters and distribution parameters corresponding to it. In terms of basic automation control, due to the numerous and relatively independent equipment used for blast fur...

Claims

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Application Information

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Patent Type & Authority Applications(China)
IPC IPC(8): G05B19/05C21B7/18
Inventor 叶理德赵菁周卫东陈申燏徐岸非周登科张骋杰
Owner WISDRI ENG & RES INC LTD
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