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Feeding protection device for refining furnace

A protection device and refining furnace technology, which is applied in the field of refining furnaces, can solve the problems of affecting the quality of molten steel in LF refining, reducing the service life of material slide equipment, burning out belts, etc., so as to ensure the smelting effect, reduce the cost of improvement, and ensure the quality of molten steel Effect

Pending Publication Date: 2018-12-18
WUHU XINXING DUCTILE IRON PIPES
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  • Summary
  • Abstract
  • Description
  • Claims
  • Application Information

AI Technical Summary

Problems solved by technology

[0002] At present, during LF smelting, the flue gas and heat are discharged upwards from the material slide pipe; the heat will cause the material slide equipment (mainly the reversible belt) to be exposed to high temperature for a long time and reduce the service life, and in severe cases, the belt will be burned; the exhausted smoke will be Reduce the micro-positive pressure in the LF furnace and the reducing atmosphere in the ladle refining furnace, which will affect the LF refining effect and the final molten steel quality

Method used

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  • Feeding protection device for refining furnace

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Embodiment Construction

[0019] The specific implementation manner of the present invention will be described in further detail below by describing the embodiments with reference to the accompanying drawings.

[0020] Such as figure 1 As shown, the refining furnace blanking protection device includes a refining furnace blanking hopper 1, a blocking ball and a traction mechanism 3 for pulling the blocking ball up and down.

[0021] The bottom of the feeding hopper 1 is provided with a feeding opening for adding materials into the refining furnace, the blocking ball is located above the feeding opening, and the upper part of the blocking ball is connected with the traction mechanism.

[0022] Preferably, the traction mechanism 3 includes a motor and a wire rope wound on the rotating shaft of the motor, and the wire rope is connected to the upper part of the blocking ball. Blocking ball is iron ball 2 or steel ball.

[0023] The upper part of the blocking ball is provided with lifting lugs, and the end...

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Abstract

The invention discloses a feeding protection device for a refining furnace. The feeding protection device for the refining furnace comprises a feeding hopper for the refining furnace, a blocking balland a hauling mechanism for lifting and lowering the blocking ball. A feeding opening is formed in the bottom of the feeding hopper and used for feeding materials to the refining furnace. The blockingball is located above the feeding opening and the upper part of the blocking ball is connecting with the hauling mechanism. According to the feeding protection device for the refining furnace, structure design is reasonable, a feeding channel is changed to a funnel-typed feeding hopper and an iron ball can be achieved to rise and fall by hauling, normal feeding is guaranteed and smoke in the refining furnace is prevented from rising and spilling out; damage to a device by heat rising and spilling out is avoided, smoke in a steel ladle refining furnace is prevented from exhausting, micro-positive pressure in the refining furnace is maintained and smelting results and quality of liquid steel are guaranteed; and the structure is simple, and the improving cost is low.

Description

technical field [0001] The invention relates to the technical field of refining furnaces, in particular to a cutting protection device for refining furnaces. Background technique [0002] At present, during LF smelting, the flue gas and heat are discharged upwards from the material slide pipe; the heat will cause the material slide equipment (mainly the reversible belt) to be exposed to high temperature for a long time and reduce the service life, and in severe cases, the belt will be burned; the exhausted smoke will be Reducing the micro-positive pressure in the LF furnace and the reducing atmosphere in the ladle refining furnace will affect the LF refining effect and the final molten steel quality. Contents of the invention [0003] Aiming at the deficiencies of the prior art, the technical problem to be solved by the present invention is to provide a material cutting protection device for a refining furnace to achieve the purpose of maintaining a slight positive pressur...

Claims

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Application Information

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Patent Type & Authority Applications(China)
IPC IPC(8): F27D3/10F27D3/00F27D7/06
CPCF27D3/0032F27D3/10F27D7/06F27D2007/063
Inventor 刘列喜范石伟李海刘志勇徐雷王文培李海恩史振飞
Owner WUHU XINXING DUCTILE IRON PIPES
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