Cold briquette of waste materials as an aggregate for smelting f

Specialized metallurgical processes – compositions for use therei – Processes – Consolidating metalliferous material by agglomerating,...

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75313, 75327, C21C 700

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active

059124032

ABSTRACT:
The invention relates to the use of a briquette of waste materials as an aggregate for smelting furnaces of an iron foundry, in particular in cupola furnaces or other shaft furnaces. The object of the invention is to disclose the use of a briquette of waste materials as an aggregate for smelting furnaces of an iron foundry, in that it can be produced in an economical manner, is sufficiently heat-resistant, is present with a similar alloy composition even with fluctuating contents in the starting components and does not result in any additional charge of pollutants into the smelting process. The object is attained in that the corresponding waste substances of an iron foundry, in particular cupola-furnace top-gas filter dust, and/or filter dust from the preparation of molding said and/or filter dust from the cleaning shop and/or filter dust from the grinding shop as well as the waste substances magnesium-oxide filter dust and/or limestone dust acting as hydraulic binders are collected, mixed and moistened, and the entire mixture is pressed cold under pressure in molds to form briquettes.

REFERENCES:
patent: 3857698 (1974-12-01), Gilpin et al.
patent: 4451293 (1984-05-01), Kitamura et al.
patent: 4814005 (1989-03-01), Thompson
patent: 4865642 (1989-09-01), Huddleston

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