Combined ore-coke tank arrangement process for blast furnace group

Abstract

The invention provides a combined ore-coke tank arrangement process for a blast furnace group. The combined ore-coke tank comprises at least three blast furnace ore-coke tank units which are longitudinally arranged in parallel, and each blast furnace ore-coke tank unit comprises a plurality of ore tanks and a plurality of coke tanks which are transversely arranged in a row; the coke tank area andthe ore tank area are positioned at two ends of each blast furnace ore-coke tank unit respectively, the ore tank and the coke tank of each blast furnace ore-coke tank unit are provided with under-tankfeeding devices respectively, and each blast furnace ore-coke tank unit is provided with an under-tank main material belt conveyor; each blast furnace ore-coke tank unit is provided with an ore return belt conveyor and a coke return belt conveyor, and all the blast furnace ore-coke tank units share one main ore return belt conveyor and one main coke return belt conveyor. According to the combinedore-coke tank arrangement process, the combined ore coke tank is arranged in a centralized manner, occupies a small area, and is more beneficial to control of a dust pollution source; the ore tanks and the coke tanks are distributed at the two ends and are arranged in a partitioned mode, concentrated feeding of coke and ore is facilitated, the feeding process is simplified, and the secondary transferring frequency of the raw material is effectively avoided or reduced.

Description

technical field [0001] The invention belongs to the technical field of ironmaking in the iron and steel metallurgy industry, and in particular relates to a combined ore coke groove layout process for blast furnace groups. Background technique [0002] In recent years, more and more blast furnaces with the same technical parameters have been built simultaneously in a certain plot. The starting point is to build a clean and green factory with good environment, reasonable layout, low investment, smooth and simple logistics, and a small footprint, especially in coastal areas. The system layout and technical indicators of the blast furnace area of ​​the main process are basically the same, forming a "blast furnace group" with the same technical parameters in a certain plot. [0003] In the case of traditional layout, each blast furnace coke tank in the blast furnace group is set independently, that is, each blast furnace has its own coke tank, and at most two blast furnace coke t...

AI Technical Summary

Problems solved by technology

This will inevitably lead to disadvantages such as many buildings and scattered layout, large floor area, large one-time investment, complex raw and fuel feeding system, many transfer switching and falling times, and scattered sources of raw material dust pollution. The coke arrangement is scattered, there are many pollution sources, and the powder content of raw materials is increased, which increases the screening pressure under the tank

In addition, the coke trough raw fuel bunkers of each blast furnace are independent. When the feeding system of a certain blast furnace fails, they cannot form a backup for each other, and are forced to reduce production or even shut down

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