Apparatus for forming refractory masses

Details Apparatus for forming refractory masses Apparatus for forming refractory masses

1989-10-26

1990-11-06

Beck, Shrive

Coating apparatus

Projection or spray type

427423, 239 85, 239398, 2394165, B05B 714, B05B 720

Patent

active

049676865

ABSTRACT:
An apparatus for forming a refractory mass on a surface of a substrate by spraying against the surface a mixture of particles including oxidizable particles and refractory particles in a carrier gas, which carrier gas may contain oxygen but is not substantially all oxygen, and combusting the oxidizable particles to generate sufficient heat to soften or melt at least the surfaces of the refractory particles and form the refractory mass, which apparatus includes means for mixing the mixture of particles with a stream of the carrier gas; a lance having an outlet; a feed line for conveying the carrier gas and entrained mixture of particles to the lance outlet for spraying and having defined therein at least one orifice located downstream of the mixing means and at least 1 m from the lance outlet; and means for introducing oxygen gas into the carrier gas and entrained mixture of particles connected to the at least one orifice defined in the feed line.

REFERENCES:
patent: 4193773 (1980-03-01), Staudinger
patent: 4560591 (1985-12-01), Plumat
patent: 4634611 (1987-01-01), Browning
"Metallurgical Coke", Coal Research Establishment Annual Report (1980-1981), pp. 8 and 9, pub'd 1981.

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