Shinagawa Shirorenga Kabushiki Kaisha

Shinagawa Refractories Co., Ltd.

Mitsukuni Sato

Kenji Yamamoto

Takashi Otsuka

Masahiko Nose

Koji Ishii

Shinji Nishida

Koichi Ozawa

Yoshio Nakamori

Taizo Sera

Yosuke Kobayashi

Jun Kubota

A submerged nozzle mounting/dismounting apparatus for mounting a submerged nozzle (9) on and dismounting the same from a slide valve device (5) of a molten metal vessel (1) of a continuous casting system, is provided with a submerged nozzle holding mechanism (25) having support arms (27) for holding the submerged nozzle pressed against the slide valve device through mounting pins (13) on the upper part of the submerged nozzle. For automated operation to eliminate all kinds of heavy physical work in a hot environment, the submerged nozzle mounting/dismounting apparatus comprises a slide base (32) laterally slidably mounted for positional adjustment relative to the support arms (27) on a robot arm (21) supported for turning on a stand. A submerged nozzle hanger (40) is provided for supporting the submerged nozzle via support pins (14) projecting from the submerged nozzle. The hanger (40) is pivotally supported for turning in a vertical plane on the slide base. A guide member (45) provided below the slide valve device operates to guide the submerged nozzle hanger (40) for turning in a vertical plane and to guide the slide base through the submerged nozzle hanger for movement in directions perpendicular to the vertical plane in which the submerged nozzle hanger turns. A contact mechanism (46) is supported on the submerged nozzle hanger so as to move along guide surfaces (48, 49) of the guide member. The contact mechanism (46) is guided along the guide surfaces to move the mounting pins (13) of the submerged nozzle on the submerged nozzle hanger into pin receiving grooves (28) of the support arms (27) and to adjust the horizontal positions of the mounting pins (13) so as to be in alignment with the positions of the support arms (27).

Submerged nozzle mounting/dismounting apparatus

Plate brick cartridge for a slide gate valve, and slide gate valve of

A fluid operated press having opposed first and second fluid chambers is employed for compressing a mixture of desired brick ingredients in a mold. Pressurized fluid, preferably hydraulic oil, is first delivered to the first fluid chamber of the press to cause the same to exert a prescribed pressure on the mixture. Then, with this prescribed pressure maintained, the pressurized fluid is directed alternately into the first and second fluid chambers at rapid intervals, with the result that the press imparts vibratory motion to the mixture being held under pressure. In a preferred embodiment, the selective delivery of the pressurized fluid to the fluid chambers of the press is controlled by a servomechanism, constantly comparing a reference pressure signal with an actual pressure signal representative of the actual pressure being exerted by the press and actuating a servovalve so as to make the difference between the reference and actual pressure signals zero.

Apparatus for pressure molding firebrick

Growing community of inventors

Okayama, Japan

Mitsukuni Sato