Process and apparatus for producing portland and other hydraulic

Details Process and apparatus for producing portland and other hydraulic Process and apparatus for producing portland and other hydraulic

1981-07-21

1983-06-14

Poer, James

Compositions: coating or plastic

Coating or plastic compositions

Proteinaceous material containing

432 13, C04B 702

Patent

active

043881173

ABSTRACT:
A hydraulic cement, such as portland cement, is produced by filling a furnace shell with the desired cement in a powdered condition. By the application of intense heat to the filling a skull is developed that lines an upwardly opening cavity. The heat, which may be supplied by electric arcs, is continued within the skull to maintain a pool of melt that has the same chemical composition as the skull and therefore does not react with the skull. Feed materials are introduced into the melt, and these materials are suitably proportioned to chemically combine within the melt without changing the chemical composition of the melt. The melt is drawn off through a tap hole and cooled to provide the desired cement.

REFERENCES:
patent: 3303037 (1967-02-01), Klein
patent: 3666515 (1972-05-01), Nakagawa
patent: 3801345 (1974-04-01), Nakagawa

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