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Tuyere setting structure

A technology of structure and tuyere, which is applied in the field of setting and structure of tuyere, can solve the problems of high risk of molten metal leakage accidents, achieve the effects of shortening welding, avoiding damage/destruction, and reducing process and cost

Pending Publication Date: 2020-04-21
KROSAKI HARIMA CORP
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  • Summary
  • Abstract
  • Description
  • Claims
  • Application Information

AI Technical Summary

Problems solved by technology

[0009] Even in the plug installed inside the tuyere for the purpose of blowing gas into the molten metal container, passing electricity, etc., like the above-mentioned upper pouring nozzle, there may be a gap between the tuyere and the iron sheet, causing leakage of molten metal. higher risk of accident

Method used

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Examples

Experimental program
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Embodiment Construction

[0052] Hereinafter, embodiments of the present invention will be described with reference to the drawings.

[0053] pass figure 1 Embodiment 1 will be described.

[0054] This Embodiment 1 is provided with a transverse convex portion provided with a through hole in a part of the tuyeres 2, and a hole for tapping a position corresponding to the through hole is provided on the iron sheet 4 at the bottom of the molten metal container. The tuyeres 2 are fixed to the iron sheet 4 through the engaging parts (bolts) 3 having a bolt structure corresponding to the through holes and the threaded holes of the iron sheet 4 .

[0055] pass figure 2 Embodiment 2 will be described.

[0056] In Embodiment 2, at least a part of the tuyere 2 is provided with an enlarged portion in the downward direction, and a metal joining part 3 (metal plate or metal cover 12) having a through hole is provided so as to restrain the enlarged portion of the tuyere 2. (Holding) Below, there is a threaded h...

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PUM

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Abstract

The present invention provides a tuyere setting structure in which no gap is generated between a nozzle or plug set at the bottom of a molten metal container and a plate or the like located below thenozzle or plug, and between the nozzle or plug and a tuyere located above or on the outer peripheral side of the nozzle or plug. In the tuyere setting structure according to the present invention, a tuyere (2) which is set so as to surround a plug or a nozzle for discharging molten metal downwardly from the bottom of the molten metal container, is fixed, with joining components (3), to an iron shell (4) at the bottom of the molten metal container.

Description

technical field [0001] The present invention relates to an installation structure of a tuyere, which is arranged to surround a pouring nozzle or a plug that discharges molten metal downward from the bottom of a molten metal container. Background technique [0002] In the nozzle installed at the bottom of the molten metal container to discharge the molten metal downward from the bottom of the molten metal container, there are plate-shaped sliding nozzle devices, submerged nozzles, and upper nozzles for controlling the flow rate of molten metal. Wait. [0003] For example, the upper plate for the sliding pouring nozzle device is fixed to the iron sheet at the bottom of the molten metal container, and the upper pouring nozzle arranged on the upper part is arranged between the upper plate and the refractory material layer inside the iron sheet at the bottom of the molten metal container through a joint. A part is between the tuyere that directly contacts the upper pouring nozzl...

Claims

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Application Information

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Patent Type & Authority Applications(China)
IPC IPC(8): B22D41/02B22D11/10B22D41/56F27D3/16
CPCB22D41/02F27D3/16B22D41/56B22D41/502B22D41/505B22D1/005
Inventor 瓦田幸司立川孝一
Owner KROSAKI HARIMA CORP