Sintering-mineralizing energy-saving combustion adjuvant and its preparing method

Abstract

This invention discloses an energy save combustion accelerator and its manufacturing method for agglomerate, which mixes borax 45%-50% boric acid 10%-14%, NaHCO3 24%-30%, NaCl 21%-6% in the proportion of a formula to mix them evenly and put them in bags. The chemical reaction of said accelerator is carried out in the sintering process, which can further increase its smelting strength and reduce the coke ratio.

Description

Technical field [0001] The invention relates to a sintering and mineralization energy-saving combustion accelerant and a preparation method thereof, belonging to the technical field of smelting. Background technique [0002] In the iron and steel smelting industry, energy saving and consumption reduction, and improving the output and quality of sintered ore are one of the effective ways to provide high-quality raw materials for blast furnace ironmaking. However, the existing sintering process uses sintering mixture for direct combustion without gasification, oxygenation, and combustion. The medium is mixed in the material layer, the combustion speed is slow, and the heat release is insufficient, which affects the air permeability of the mixture, making it difficult for the consolidation strength of the sinter to meet the technical requirements, and the yield is not high, resulting in increased energy waste and cost. Contents of the invention [0003] In view of the above p...

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Problems solved by technology

[0002] In the iron and steel smelting industry, energy saving and consumption reduction, and improving the output and quality of sintered ore are one of the effective ways to provide high-quality raw materials for blast furnace ironmaking. However, the existing sintering process uses sintering mixture for direct combustion without gasification, oxygenation, and combustion. The medium is mixed in the material layer, the combustion speed is slow, and the heat release is insufficient, which affects the air permeability of the mixture, making it difficult for the consolidation strength of the sinter to meet the technical requirements, and the yield is not high, resulting in energy waste and increased costs.