Continuous casting tundish submerged nozzle on-line roasting apparatus and roasting method

A continuous casting tundish and baking device technology, applied in casting equipment, casting melt containers, metal processing equipment and other directions, can solve the problems of high cost, difficult use and maintenance, etc., to ensure baking quality, low noise, The effect of uniform baking temperature

Active Publication Date: 2010-11-10
BEIJING SHOUGANG CO LTD
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  • Summary
  • Abstract
  • Description
  • Claims
  • Application Information

AI Technical Summary

Problems solved by technology

The above-mentioned baking method requires a lot of auxiliary equipment: the furnace body made of refractory materials and steel structure, small and medium-sized fans, the piping system for drafting and the corresponding water-cooling and air-cooling devices. Difficult and expensive to maintain

Method used

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  • Continuous casting tundish submerged nozzle on-line roasting apparatus and roasting method
  • Continuous casting tundish submerged nozzle on-line roasting apparatus and roasting method
  • Continuous casting tundish submerged nozzle on-line roasting apparatus and roasting method

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Embodiment Construction

[0017] The invention includes a tundish roaster, a tundish upper nozzle, a nozzle quick-change mechanism, a submerged nozzle, a sealing ring, a baking cover, and a support frame; The iron sleeve is in close contact, the lower part of the sealing ring 4 is the baking cover 3, the upper edge of the baking cover 3 is in close contact with the sealing ring 4, and the bottom is lifted by the support frame 7.

[0018] The present invention uses a baking device to seal the gap between the burner of the roaster and the tundish cover and the stopper hole before baking, and manually adjust the valve opening of the tundish roaster to: 25% to 35%, the combustion of gas in the tundish will generate a positive pressure of 0.3 to 1.5Mp, and the heat generated by the combustion will overflow from the upper nozzle and overflow groove of the double-flow tundish. After baking for 25 to 35 minutes, , the temperature inside the tundish can reach 1050-1150°C, then adjust the valve opening of the tu...

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Abstract

The invention discloses a continuous casting tundish submerged nozzle on-line roasting apparatus and a roasting method, and belongs to the field of metallurgical continuous casting. The apparatus comprises a tundish roaster, an upper tundish nozzle, a nozzle quick-change mechanism, a submerged nozzle, a sealing ring, a roasting sleeve and a support frame, wherein a sealing ferrule is sleeved at the neck of the submerged nozzle, the internal diameter is in close contact with an iron cover of the submerged nozzle, the lower part of the sealing ring is provided with a roasting sleeve, the upper edge of which is in close contact with the sealing ring, and the bottom part is lifted by using the support frame. The invention has the advantages of saving a lower suction device and daily maintenance cost and reducing a large amount of cost along with simple structure. Meanwhile, the device and the method make full use of roasting heat from the tundish and save a large amount of energy medium so as to fulfill the aims of energy conservation and consumption reduction.

Description

technical field [0001] The invention belongs to the technical field of metallurgical continuous casting, and in particular provides a continuous casting tundish submerged nozzle online baking device and a baking method. Background technique [0002] On-line baking of continuous casting tundish is an important method of submerged nozzle baking. It can increase the baking temperature of the upper nozzle of the tundish, shorten the use time from nozzle cease-fire to pouring, ensure normal pouring operation and improve the normal operation of the nozzle. Aspects such as utilization rate play a very important role, and even become a restrictive link in continuous casting production. The baking effect directly affects the normal use of the pouring operation and the nozzle, and plays an important role in ensuring the stability of casting machine production. positive effect. [0003] Before the casting machine is produced, the baking of the tundish and the submerged nozzle is an im...

Claims

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Application Information

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Patent Type & Authority Applications(China)
IPC IPC(8): B22D41/015
Inventor 檀伟峰胡卫东付苏刚张涛吴海亮
Owner BEIJING SHOUGANG CO LTD
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