Blast furnace material-proportioning and material-loading method

A technology for blast furnaces and feeding carts, applied in the metallurgical field, can solve problems such as insufficient capacity of the intermediate weighing hopper, and achieve the effects of saving feeding time, saving investment costs, and saving investment and feeding time

Inactive Publication Date: 2012-12-19
ZENITH STEEL GROUP CORP
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  • Summary
  • Abstract
  • Description
  • Claims
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AI Technical Summary

Problems solved by technology

[0003] In order to solve the contradiction between blast furnace batching and equipment design defects, the purpose of the present invention is to provide a blast furnace batching and feeding method, which solves the problem of insufficient capacity of the middle weighing hopper and saves feeding time at the same time

Method used

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Examples

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Example Embodiment

[0011] A method for feeding blast furnace ingredients according to the present invention includes the following steps:

[0012] 1) The order of discharging the ore on the west side of the trough is: 4# sinter → 3# sinter → 1# lump ore → 2# sinter → 2# pellets → 1# sinter → 1# pellets → coke;

[0013] 2) The sequence of ore discharge at the east side of the trough is: 7# sinter → 8# sinter → 2# lump ore → 9# sinter → 2# flux → 10# sinter → 3# flux → 4# flux;

[0014] 3) After the above-mentioned ore discharge is completed, the slag plate valve of the middle hopper of East Ore is opened in place, and when discharging to the material truck is started, the 5# sintering weighing hopper starts to discharge; When the material truck is unloaded, the 6# sintering weighing hopper starts to discharge; the blast furnace batching and charging is completed.

[0015] In the present invention, when the 5# sintering and 6# sintering weighing hoppers are discharging materials to the conveyor belt, a part

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PUM

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Abstract

The invention discloses a blast furnace material-proportioning and material-loading method. The retort western ore under-charging sequence is as follows: 4# sintering-3# sintering-1# ore lumping-2# sintering-2# pelletizing-1# sintering-1# pelletizing-coke nut; and the retort eastern ore under-charging sequence is as follows: 7# sintering-8# sintering-2# ore lumping-9# sintering-2# flux adding-10# sintering-3# flux adding-4# flux adding. After ore-charging is completed and an eastern ore middle bucket gate valve is opened in place to unload into a skip car, a 5# sintering weighing hopper begins to charge; when a western ore middle bucket gate valve is opened in place to unload into a skip car, a 6# sintering weighing hopper begins to charge; and the blast furnace material-proportioning and material-loading process is completed. By adopting the method, 364 cars of ores are loaded in the blast furnace, 14.4 tons of ores each car can be additionally loaded and 5240 tons of ores can be additionally loaded per day. Therefore, the smooth running of the blast furnace can be ensured, the capacity of the middle bucket can be effectively utilized and the investment and the loading time can be saved.

Description

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Claims

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Application Information

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Owner ZENITH STEEL GROUP CORP
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