A device and a process for the continuous application of a refractory slurry to a surface incorporate a batch reactor (10) for the controlled mixing of the slurry, a product vessel (60) in communication with the batch reactor (10) to contain the mixed slurry, and a variable-rate spraying applicator or nozzle in communication with the product vessel and with an air supply. A controller (100) controls input to, output from, and the operation of, the batch mixer (10), and monitors batch production. The controller (100) monitors the amount of slurry contained in the product vessel (60). If the level of slurry in the product hopper is such that the product hopper cannot accommodate an additional batch of slurry, the controller interrupts batch production and resumes production when the product hopper can accept the contents of the batch reactor (10).

The present invention provides a method for coating the bottom of a steel pan comprising the steps of positioning a mold on the bottom of the steel pan; securing the mold by means of a clamping mechanism; applying refractory material to the bottom of the pan and below the mold; applying a load to the mold; and removing the mold from the refractory material. The present invention is advantageous because it enables an increase in the metallic yield of pans and the reduction of non-metallic inclusions, which are normally dragged by the vortex formed.

A device and a process for the continuous application of a refractory slurry to a surface incorporate a batch reactor (10) for the controlled mixing of the slurry, a product vessel (60) in communication with the batch reactor (10) to contain the mixed slurry, and a variable-rate spraying applicator or nozzle in communication with the product vessel and with an air supply. A controller (100) controls input to, output from, and the operation of, the batch mixer (10), and monitors batch production. The controller (100) monitors the amount of slurry contained in the product vessel (60). If the level of slurry in the product hopper is such that the product hopper cannot accommodate an additional batch of slurry, the controller interrupts batch production and resumes production when the product hopper can accept the contents of the batch reactor (10).

The present invention provides a method for coating the bottom of a steel pan comprising the steps of positioning a mold on the bottom of the steel pan; securing the mold by means of a clamping mechanism; applying refractory material to the bottom of the pan and below the mold; applying a load to the mold; and removing the mold from the refractory material. The present invention is advantageous because it enables an increase in the metallic yield of pans and the reduction of non-metallic inclusions, which are normally dragged by the vortex formed.

An installation for applying a lining composition in the form of dry particulate material (2p) is provided to form a working lining (2s) onto a surface of a cavity in a tundish (1). A space reference system (X, Y, Z), where X is a longitudinal axis, Y is a transverse axis, and Z is a vertical axis is used. The installation includes a support frame defining a passage, a tank for storing an amount of the dry particulate material, dispensing units, a plunger configured for fitting in the cavity, a longitudinal translation mechanism is configured for holding and translating the dispensing along the longitudinal axis, a transverse translation mechanism is configured for receiving the tundish and translating the tundish along the transverse axis of the passage, and an elevation translation mechanism is configured for holding the plunger and translating the plunger along the vertical axis of the cavity when the tundish is located in the passage.