Hot delivery and hot charging process of blast furnace iron making raw material and device thereof

Abstract

The invention provides a hot delivery and hot charging process of blast furnace iron making raw material and a device thereof. According to the invention, mature red cokes produced by a coke oven carbonizing chamber, hot agglomerates produced by a sintering machine and hot pellet ores produced by a pellet roasting machine are delivered into transfer pots; the transfer pots are used as the buffering and heatproof containers of the red cokes, hot agglomerates and hot pellet ores, the red cokes, hot agglomerates and hot pellet ores are delivered into the blast furnace at high temperatures. The temperature of the red cokes entering the blast furnace is controlled within 100 to 1200 DEG C, the temperature of the hot agglomerates entering the blast furnace is controlled within 100 to 1000 DEG C, the temperature of the hot pellet ores entering the blast furnace is controlled within 100 to 1400 DEG C, and temperature of lump ores is normal temperature. By utilizing the invention, the beneficial effects of heat energy saving, coke-rate decreasing and conductivity raising are obtained.

Description

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AI Technical Summary

Benefits of technology

This patented technology allows for direct charging of warm or heaty green color coke (C) from one location onto another without causing environmental concerns such as emissions during manufacturing processes. It also includes reducing certain elements like sulfur dioxide gases that may harm health issues when burning Cokes at temperatures above 150°C. Additionally, it suggests adding potashes instead of calcium carbonate to improve its properties while maintaining good fluidity characteristics. Overall, this process helps reduce costs associated with producing steel products through energy consumption and minimizes negative impact on environmentally friendly aspects.

Problems solved by technology

Technological Problem: Current methods involve wet or semi-wet processes involving multiple steps like loading material onto an apparatus called a drum, curling, burning off residue, scraping, transportation, storage, use of power sources, and disposal costs associated therewith. Additionally, current methods require expensive electrical facilities and consume significant amounts of fuel resources while producing unwanted greenhouse gas emissions.

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