A control method for blast furnace charge screening

A sub-control, blast furnace technology, applied in the blast furnace, blast furnace details, furnace, etc., can solve the problems such as the limitation of the screening effect, achieve the effect of improving the screening effect, reducing the powder into the furnace, and realizing the screening effect

Active Publication Date: 2019-04-12
SHOUGANG JINGTANG IRON & STEEL CO LTD
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  • Summary
  • Abstract
  • Description
  • Claims
  • Application Information

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Problems solved by technology

[0005] The embodiment of the present invention solves the technical problem that the existing screening time control method has limitations in improving the raw material screening effect by providing a blast furnace charge screening control method

Method used

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  • A control method for blast furnace charge screening
  • A control method for blast furnace charge screening
  • A control method for blast furnace charge screening

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Embodiment Construction

[0033] In order to make the purpose, technical solutions and advantages of the embodiments of the present invention clearer, the technical solutions in the embodiments of the present invention will be clearly and completely described below in conjunction with the drawings in the embodiments of the present invention. Obviously, the described embodiments It is a part of embodiments of the present invention, but not all embodiments. Based on the embodiments of the present invention, all other embodiments obtained by persons of ordinary skill in the art without creative efforts fall within the protection scope of the present invention.

[0034] A blast furnace charge screening control method provided in an embodiment of the present invention is applied to a blast furnace charge screening control system. Refer to figure 1 As shown, the blast furnace charge screening control method includes the following steps:

[0035] S101. Obtain the actual value of the second flow rate of the c...

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Abstract

The invention discloses a blast furnace burden screening control method applied to a blast furnace burden screening control system. The blast furnace burden screening control method comprises the steps that the actual second flow value that current raw materials enter a furnace is obtained; whether the actual second flow value is in the second flow control section or not is judged, wherein the second flow control section is matched with the current raw materials; when the judgment result shows that the actual second flow value is not in the second flow control section, the vibration frequency is adjusted; and the adjusted vibration frequency value is fed back to a feeder of the blast furnace, and the feeder adjusts the feeding amount of a vibration screen according to the vibration frequency value. The technical problem that in the prior art, limitation exists in improvement of the raw material screening effect is effectively solved, the screening effect of the raw materials entering the furnace is greatly improved, the powder entering the blast furnace is greatly reduced, and stable and smooth blast furnace running and load improving can be well promoted.

Description

technical field [0001] The invention relates to the technical field of ironmaking engineering, in particular to a method for controlling blast furnace charge screening. Background technique [0002] Blast furnace charge is the basis of blast furnace production, while concentrate is the basic requirement of modern large-scale blast furnace for raw materials, and is the foundation of smooth and stable blast furnace. Blast furnace raw material workers have been committed to improving and improving the quality of raw materials entering the furnace. Screening raw materials with suitable particle sizes and reducing the powder content of raw materials entering the furnace as much as possible play an important role in the smooth operation of the blast furnace. There are two methods for controlling the screening of blast furnace charge, the method of controlling the opening of the upper gate of the bunker and the method of controlling the screening time of raw materials. [0003] Th...

Claims

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Application Information

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Patent Type & Authority Patents(China)
IPC IPC(8): C21B5/00
CPCC21B5/006
Inventor 张贺顺任立军陈军曹锋王有良刘长江王牧麒魏志军黄俊杰郭之明陈建
Owner SHOUGANG JINGTANG IRON & STEEL CO LTD
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