Tuyere for the injection of reaction gas

Details Tuyere for the injection of reaction gas Tuyere for the injection of reaction gas

1975-08-07

1981-02-10

Bell, Paul A.

Metallurgical apparatus

Process

Tuyere operation

266218, 266222, 266266, 266268, 266270, 266 99, C21B 716

Patent

active

042497191

ABSTRACT:
A tuyere for the injection of both a refining gas such as oxygen into a melting or refining vessel, and a fluid protective medium such as a hydrocarbon gas or a liquid surrounding the injected refining gas, in which there is a solid center in the pipe through which the refining gas is suplied so that the refining gas enters the refining vessel as an annulus around which the protective fluid is disposed.
The tuyere is installd in the refractory lining of the refining vessel and the fluids passing into the vessel through the tuyere are proportioned so that burning back of the tuyere and erosion or wear of the lining take place at the same rate.
The protective medium cools the tuyere and avoids reactions between the refining gas and the tuyere material.

REFERENCES:
patent: 3330645 (1967-07-01), DeMoustier et al.
patent: 3490755 (1970-01-01), Lutgen
patent: 3706549 (1972-12-01), Knuppel et al.
patent: 3817744 (1974-06-01), Leroy et al.
patent: 3830173 (1974-08-01), Hubble et al.
patent: 3832161 (1974-08-01), Leroy
patent: 3897048 (1975-07-01), Pearce et al.

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