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Oxygen lance spray nozzle for converter

An oxygen lance nozzle and converter technology, applied in the field of oxygen lances, can solve the problems of production efficiency restriction, occupation time, etc., and achieve the effects of reducing labor intensity, improving steelmaking efficiency, and having broad application prospects.

Inactive Publication Date: 2010-08-18
SUZHOU BAOLIAN HEAVY IND
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  • Summary
  • Abstract
  • Description
  • Claims
  • Application Information

AI Technical Summary

Problems solved by technology

In this way, it will take a considerable amount of time to replace the oxygen lance, and the production efficiency is restricted.

Method used

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  • Oxygen lance spray nozzle for converter
  • Oxygen lance spray nozzle for converter
  • Oxygen lance spray nozzle for converter

Examples

Experimental program
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Embodiment Construction

[0017] A multifunctional oxygen lance nozzle for converter designed in the present invention is based on the converter steelmaking principle and process status quo described in the background technology, and three processes of oxygen blowing, cooling steel and slag splashing protection are carried out through an oxygen lance. Finish.

[0018] Such as figure 1 with figure 2 The oxygen lance nozzle for the converter shown is a schematic structural diagram and a schematic cross-sectional diagram of a complete assembly with the oxygen lance. It can be seen that the oxygen lance nozzle is attached to the gas injection port 1 at the end of the oxygen lance, and mainly includes the nozzle body connected through the gas injection port 1 21. A plurality of nitrogen nozzles 22a-22c and the rotary vane device 23 detachably connected to the nozzle body 21, wherein the nozzle body 21 can be permanently assembled on the gas injection port 1 for oxygen supply; and the nitrogen nozzle The ...

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Abstract

The invention discloses an oxygen lance spray nozzle for a converter, which is assembled at the air nozzle part of the rear end of an oxygen lance, and is characterized in that the oxygen lance spray nozzle comprises a spray nozzle main body communicated with the air nozzle part, a plurality of nitrogen spray pipes detachably spliced on the spray nozzle main body and a spiral vane device, wherein a straight spray pipe and at least two side nozzles around the straight spray pipe are positioned in the center of the spray nozzle main body, the spiral vane device is a dish-shaped tray having a hollow cylinder with the rear end being closed, meanwhile, the upper end of the hollow cylinder is connected with the straight spray pipe in a sealing way, the lower end of the hollow cylinder is connected with the dish-shaped tray through a bearing, and 3 to 6 blade-shaped inclined steel sheets are arranged on the upper surface of the dish-shaped tray and rotate relative to the hollow cylinder. Through conveniently changing parts, the multifunctional oxygen lance spray nozzle can easily complete three different technological operations, greatly improves the steel-making frequency in converter steel making, relieves the labor intensity of workers, simultaneously has certain especially good effects of energy saving and environmental protection, and has wide application prospect.

Description

technical field [0001] The invention relates to an oxygen lance of a steelmaking converter for industrial production, in particular to a multifunctional oxygen lance nozzle used on the steelmaking converter. Background technique [0002] In converter steelmaking, the oxygen lance is one of the key process equipment, directly involved in three different processes of steelmaking production. The details are as follows: First, it completes the work of blowing oxygen into the converter, and sprays oxygen to the liquid metal at a certain height from the surface of the molten pool to realize the smelting reaction of the metal molten pool. The kinetic parameters of the jet flow should meet the process requirements. stipulations, and can keep the characteristics of the jet unchanged in long-term use. Secondly, in the steelmaking interval of the converter, because there is a large amount of cold steel adhered to the furnace wall of the converter that needs to be removed, a certain am...

Claims

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Application Information

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Patent Type & Authority Applications(China)
IPC IPC(8): C21C5/46
Inventor 曹卫文刘豫辉雷雨田吴文超
Owner SUZHOU BAOLIAN HEAVY IND
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