Continuous casting ladle long nozzle residual steel cleaning equipment and using method thereof

Abstract

The invention discloses continuous casting ladle long nozzle residual steel cleaning equipment and a using method thereof, and relates to the technical field of metallurgical continuous casting machines. The continuous casting ladle long nozzle residual steel cleaning equipment comprises a connecting pipe, a pressing plate is arranged at the right end of the connecting pipe, a purging spray head is arranged on the pressing plate, the connecting pipe is a stainless steel seamless steel pipe, and the inlet end of the connecting pipe is connected with an argon gas source on site. The continuous casting bale long nozzle residual steel cleaning equipment is installed on a casting platform of a continuous casting machine, one end of the continuous casting bale long nozzle residual steel cleaning equipment is connected with argon, the other end of the continuous casting bale long nozzle residual steel cleaning equipment is aligned with the inlet end of a long nozzle, residual steel in the long nozzle can be conveniently and rapidly blown and swept, timely cleaning of the long nozzle residual steel is achieved, the service life of the nozzle is prolonged, and excessive molten steel residual steel attached to the nozzle is prevented, influence to the flow speed of molten steel is avoided, and potential influence factors (blowing is not uniform and residual steel cleaning is not thorough due to the fact that argon is introduced into a common steel pipe for cleaning before) which influence the fluctuation of the liquid level of the intermediate tank are eliminated.

Description

technical field [0001] The invention relates to the technical field of metallurgical continuous casting machines, in particular to a continuous casting ladle long nozzle residual steel cleaning equipment and a use method thereof. Background technique [0002] In order to improve productivity and metal yield in continuous casting production, 6-12 furnaces are usually continuously casted in multiple furnaces. Every time new molten steel is hoisted to the A arm or B arm of the ladle turret, the long nozzle under the ladle must be disengaged. After the new molten steel is in place, the operator manually installs the long nozzle to the ladle sliding nozzle The positions are repeated in this way to realize continuous multi-furnace casting of molten steel. [0003] In the prior art, with the increase in the number of continuous casting furnaces, a certain amount of residual steel will adhere to the inside of the shroud each time it is disengaged. When the steel cools and nodules,...

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Problems solved by technology

[0005] Aiming at the deficiencies of the prior art, the present invention provides a continuous casting ladle shroud residual steel cleaning equipment, which solves the problem that in the prior art, as the number of continuous casting furnaces increases, the inside of the shroud that is disengaged each time A certain amount of residual steel will adhere to it. If it is not cleaned and purged in time, as the production time goes by, the residual steel will cool and form nodules, and the inner diameter of the shroud will also narrow locally, which will affect the smooth flow of molten steel. The flow rate is unstable or the error between the flow rate controlled by the computer system becomes large, and in serious cases, the long nozzle may be damaged, resulting in a series of potential dangerous problems affecting the casting quality such as large fluctuations in the liquid level of the tundish and slag rolling.

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