Tundish with molten steel sampling connector

Abstract

The invention provides a tundish with a molten steel sampling connector so as to solve the problems that sampling of a tundish is inconvenient, and residue layer matter is easily mixed into acquired molten steel in the prior art. The tundish comprises a water gap and an installing hole, wherein the water gap is formed in the bottom wall of the tundish, the installing hole is formed beside the water gap, a sampling port seat block is arranged in the installing hole, a through hole is formed in the middle of the sampling port seat block, a flow guide plug capable of vertically sliding along the through hole is arranged in the through hole, a flow guide passageway is arranged on the flow guide plug and is a blind hole with an opening formed in the lower end face of the flow guide plug, flow ports penetrating through the outer side wall of the flow guide plug and the flow guide passageway are formed in the upper section of the side face of the flow guide plug, and the flow ports are covered with the inner side wall of the sampling port seat block. A sampling pipe is arranged below the flow guide plug, and the sampling pipe and the flow guide plug are connected together through a clamping block. A spring is arranged between the clamping block and the sampling port seat block. The tundish has the advantages that molten steel is convenient to sample, no impurities are mixed into the acquired molten steel, and the acquired molten steel is not prone to be oxidized by air.

Description

technical field [0001] The invention relates to a tundish for continuous casting, in particular to a tundish with a liquid steel sampling interface. Background technique [0002] The tundish is a refractory container used in short-process steelmaking. It first receives molten steel poured from the ladle, and then the molten steel is distributed to the crystallizer by the tundish nozzle to crystallize. During the process of molten steel passing through the tundish, it is necessary to sample and test the molten steel in order to determine the carbon content, oxygen content and other components in the molten steel. The commonly used method of sampling molten steel in the prior art is to take out the molten steel from the tundish through a scoop-type or extraction-type independent sampler. There are many problems in this method, such as when the molten steel is taken, it will be mixed into the The slag layer on the upper layer of the liquid and the molten steel taken out will b...

AI Technical Summary

Problems solved by technology

[0004] In order to solve the problem that the existing tundish needs to prepare an independent sampler for sampling molten steel, the sampling is inconvenient, and the obtained molten steel is easily mixed with slag layer substances. A tundish with a liquid steel sampling interface that is mixed with impurities, the obtained molten steel will not be oxidized by air, and the obtained molten steel has the same composition as the molten steel flowing out of the tundish for crystallization

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