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Sintering status control method in sintering process

A control method and technology for sintering state, applied in the field of iron and steel smelting, which can solve the problems of reducing the control accuracy of the sintering process and the like

Active Publication Date: 2009-05-27
ZHONGYE-CHANGTIAN INT ENG CO LTD
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  • Summary
  • Abstract
  • Description
  • Claims
  • Application Information

AI Technical Summary

Problems solved by technology

The change of vertical sintering speed and firing time will change the time t from the temperature rise point BRP to the sintering end point BTP of the mixture, thus greatly reducing the control accuracy of the sintering process

Method used

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  • Sintering status control method in sintering process
  • Sintering status control method in sintering process
  • Sintering status control method in sintering process

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Embodiment Construction

[0080] In order to make the above objects, features and advantages of the present invention more comprehensible, the present invention will be further described in detail below in conjunction with the accompanying drawings and specific embodiments.

[0081] see Figure 4 , is a flowchart of the sintering state control method in the sintering process according to the first embodiment of the present invention. Described control method specifically comprises the following steps:

[0082] Step S401: Detect and obtain the temperature curve of the sintering waste gas of the sintering machine.

[0083] Step S402: Establish a data tracking queue corresponding to the mixed material on the sintering machine trolley.

[0084] Step S403: Use the data tracking queue, combined with the exhaust gas temperature curve, to track and count the sintering state of the mixture on the sintering machine trolley, and calculate in real time the predicted value PBTP_PRE of the sintering end point of t...

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Abstract

The invention provides a control method for the sintering status in the sintering process. The method comprises the following steps: obtaining a sintering machine sintering exhaust gas temperature curve through detection; establishing a data tracking queue corresponding to the mixture on a sintering pallet; using the data tracking queue and the exhaust gas temperature curve to track and count the sintering status of the mixture on the sintering pallet, and calculating the sintering end point predicated value P BTP_PRE of the mixture at the current temperature rise position in real time; presetting an ideal sintering end point P BTP_SP, and calculating the ideal transfer speed V of the sintering pallet through the sintering end point predicated value P BTP_PRE of the mixture at the current temperature rise position; and according to the ideal transfer speed V, adjusting the operation of the sintering pallet and controlling the sintering status of the mixture on the sintering pallet. The control method can improve the accuracy of the control on the sintering status in the sintering process.

Description

technical field [0001] The invention relates to the field of iron and steel smelting, in particular to a method for controlling the sintering state in the sintering process. Background technique [0002] In iron and steel smelting technology, the sintering process is a very important process. see figure 1 , the process involves a mixing tank 1 , a distributor 2 , a sintering trolley 3 , a sintering bellows 4 , and an ignition furnace 5 . The mixture in the mixing tank 1 is spread on the sintering trolley 3 of the belt sintering machine through the distributor 2 . Ignition by the ignition furnace 5 and the negative pressure draft of the sintering bellows 4, the coke powder pre-mixed in the mixture burns, and the heat generated partially melts (or semi-melts) the mixture and bakes it into blocks. As the sintering trolley 3 moves forward, the mixed material layer is gradually burned through from top to bottom, and sintered ore is formed. The sintered ore that has been sinte...

Claims

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Application Information

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IPC IPC(8): G05B19/02C22B1/16F27B21/14
Inventor 王付其孙英陈猛胜丁勇邱立运
Owner ZHONGYE-CHANGTIAN INT ENG CO LTD
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