Tundish with molten steel sampling connector

A technology of tundish and sampling port, which is applied in the direction of manufacturing tools, casting molten material containers, metal processing equipment, etc., can solve the problems that molten steel is easily mixed into slag layer substances, and sampling is inconvenient, so as to achieve convenient operation and accurate detection results Effect

CN104625036AActive Publication Date: 2015-05-20长兴正发热电耐火材料有限公司
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Patent Information

Authority / Receiving Office
CN · China
Patent Type
Applications(China)
Current Assignee / Owner
Publication Date
2015-05-20

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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.
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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...

Examples

Embodiment Construction

[0014] The present invention will be further described below in conjunction with the accompanying drawings and specific embodiments.

[0015] Such as figure 1 As shown, a tundish with a liquid steel sampling interface includes a nozzle 11 arranged on the bottom wall 1 of the tundish, and a mounting hole 12 with steps is also provided on the bottom wall 1, and the mounting hole 12 is arranged near the nozzle 11. The installation hole 12 is arranged near the nozzle 11, so that the molten steel sample obtained is the same as the composition of the molten steel at the outlet 11. The installation hole 12 is provided with a sampling port block 2 whose longitudinal section is a "T" shape. 2 There is a through hole 21 in the middle, and the through hole 21 is provided with a diversion plug 3 that can slide up and down along the through hole 21. The longitudinal section of the diversion plug 3 is "T" shape, and the diversion plug 3 is provided with a diversion Channel 31, diversion ch...