Coating processes – Spraying – Heated coating material
Patent
1984-07-13
1985-12-24
Beck, Shrive P.
Coating processes
Spraying
Heated coating material
427427, 118317, 239 85, 239553, B05D 112
Patent
active
045605912
ABSTRACT:
A lance for spraying particulate refractory-forming combustible material, particulate refractory material and a comburent gas is characterized in that the lance 1 comprises at least one feed passage 2,3 for conveying material to be sprayed to a lance head 4 which comprises a plurality of spray nozzles 5 for spraying such material, and in that the flow path of the material being sprayed branches or turns a corner and a cup-like recess 7,9 is located at the or each such branch or corner, open to the flow path upstream thereof, for catching particulate material conveyed along said flow path so that the material caught itself forms a barrier against abrasion at the location of such recess.
A method of using such a lance to spray particulate refractory-forming combustible material, particulate refractory material and a comburent gas against a surface so that on combustion a coherent refractory mass is formed on such surface is also disclosed.
REFERENCES:
patent: 3472201 (1969-10-01), Quackenbush
patent: 3800983 (1974-04-01), Brichard et al.
patent: 3902669 (1975-09-01), Keibler
patent: 4211367 (1980-07-01), Allison
Deschepper Pierre
Plumat Robert
Robyn Pierre
Beck Shrive P.
Glaverbel
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