A method for increasing production and reducing consumption in blast furnace smelting

By using closed-end rectifying chutes and rectifying center throats in blast furnace burden distribution equipment, the problem of uneven burden distribution is solved, airflow distribution is optimized, gas utilization and production efficiency are improved, fuel consumption is reduced, and the life of the blast furnace is extended.

CN116790830BActive Publication Date: 2025-09-26HUNAN DEUSINO WEAR RESISTANT IND CO LTD
1 Cites 0 Cited by

Patent Information

Application Number
CN202310750921.9
Authority / Receiving Office
CN · China
Patent Type
Patents(China)
Current Assignee / Owner
Filing Date
2023-06-25
Publication Date
2025-09-26
Estimated Expiration
2043-06-25

AI Technical Summary

Technical Problem

The existing blast furnace burden distribution equipment causes uneven distribution of the burden in the radial direction of the circumference, affecting gas utilization and production efficiency, and severely eroding the furnace wall, resulting in a shortened blast furnace life and increased fuel consumption.

Method used

Adopting closing-end rectifying distribution chute and/or rectifying center throat, the rectification technology makes the charge distribution more uniform, adjusts the airflow distribution type in the furnace, optimizes the edge and center airflow, and improves gas utilization and production efficiency.

Benefits of technology

The uniformity and stability of charge distribution are achieved, the gas utilization rate and blast furnace production efficiency are improved, the consumption of coke and coal powder is reduced, and the life of the blast furnace is extended.

✦ Generated by Eureka AI based on patent content.
Patent Text Reader

Abstract

This application discloses a method for increasing blast furnace production and reducing consumption, comprising the following steps: using a closed-end rectifying distribution chute for a series-tank blast furnace, and a closed-end rectifying distribution chute and / or a rectifying center throat pipe for a parallel-tank blast furnace; distributing the distribution using an existing charging system and distribution matrix, and smelting for one to two cycles; determining the specific type of distribution within the furnace based on the furnace conditions and the throat gas flow distribution curve; the type being selected as edge-developed, bimodal, center-developed, or flat; and adjusting the distribution to a more optimal type or approaching the next more optimal type. This method, based on uniform and precise distribution, establishes an optimized edge gas flow and a stable center gas flow distribution, thereby improving gas utilization and increasing blast furnace production efficiency, resulting in significant economic benefits.
Need to check novelty before this filing date? Find Prior Art