Title: Improvements in nozzles for injecting substances into liquids
Application Number: 87104689 Application Date: 1987.07.04
Publication Number: 1016498 Publication Date: 1988.02.17
Approval Pub. Date: Granted Pub. Date:
International Classifi-cation: C21C7/072
Applicant(s) Name: Injectall Ltd. Address:
Inventor(s) Name: Joseph William Cudby;Kenneth William Bates;Peter R
Attorney & Agent: TAO ZENGWEI
Abstract:
    An injection nozzle (10) is installed in the wall (13) of a liquid containment vessel (14) and comprises an assembly of refractory component bodies (18, 19, 20); injection passages (22) for receiving longitudinally movable lances (11) are provided in the nozzle and before injection commences, the passages are closed by cup-shaped refractory shells (30) embedded in one of the component bodies adjacent a discharge end of the nozzle. Each shell has its base (31) united through a frangible shell portion (34) with the sidewall (32) and when injection is to commence, an associated lance is forcibly driven at the base to detach it by fracture of the shell portion and form an opening through which an injectant can exit into the liquid. A push-out bung (26) may be incorporated in the body between the base of the shell and the discharge end of the nozzle.
Time: 4