Spray operation method for monolithic refractories

Details Spray operation method for monolithic refractories Spray operation method for monolithic refractories

1996-05-10

1998-06-16

Beck, Shrive

Coating processes

Spraying

427426, 427427, 501 87, 501100, 501101, B05D 102, B05D 134

Patent

active

057666890

ABSTRACT:
A spray operation method for monolithic refractories, which comprises forcibly sending to an application field by a force feed pump and a force feed piping a self flowable mixed batch prepared by mixing, together with water, a powder composition for monolithic refractories comprising refractory aggregates, a refractory powder and a small amount of a dispersant; injecting into the mixed batch, compressed air and a required amount of a rapid setting agent respectively from a compressed air injection inlet and a rapid setting agent injection inlet provided at a downstream portion or downstream portions of the force feed piping; sending the mixed batch together with the compressed air by a nozzle piping to a spray nozzle attached to the forward end of the nozzle piping; and spraying the mixed batch from the spray nozzle to an application site.

REFERENCES:
patent: 4001029 (1977-01-01), Cassens, Jr.
patent: 4880211 (1989-11-01), Head et al.
patent: 4904503 (1990-02-01), Hilton et al.
patent: 4981731 (1991-01-01), Yorita et al.
patent: 5246897 (1993-09-01), Ono et al.
patent: 5628940 (1997-05-01), Allison

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