Fixed alloy gas roasting device

A baking device and stationary technology, applied in the field of stationary alloy gas baking devices, can solve the problems of excess capacity, increase in gas content, temperature drop in molten steel, etc., to reduce personal injury or equipment damage accidents, save gas energy, Highly flexible effect

Inactive Publication Date: 2015-05-20
HANDAN XINXING SPECIAL TUBING CO LTD
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  • Abstract
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  • Application Information

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Problems solved by technology

[0002] After more than 40 years of development in my country's steel production, especially in the past 20 years, there has been a phenomenon of overcapacity at this stage. In addition, the current steel industry is in a downturn. Large, due to the limitation of the special steel workshop, the high-level silo of the LF furnace (Ladle Furnace, ladle refining furnace) cannot be baked, and can only be baked in the low-level silo. During the smelting process, a large amount of alloys are added to molten steel , it will cause the content of hydrogen, oxygen, nitrogen and other gases in the steel to increase, and at the same time cause the temperature of molten steel to drop sharply, which will affect the rhythm of smelting

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Embodiment 1

[0012] see Figure 1-Figure 2 , In the embodiment of the present invention, a fixed alloy gas roasting device.

[0013] Equipment before improvement: external gas pipe

[0014] An oxygen pipe with a length of about 2m and a diameter of 15mm, point out the gas with a diameter of 2-3mm at intervals of 25cm in the length direction of the front end, a total of 6 gas holes, 4 alloy warehouses use 6 gas holes, and the rear end of the oxygen pipe is connected to the The gas hose is connected. When in use, the gas hose needs to be placed at the bottom of the silo and baked across the silo. Due to the small space of the oxygen pipe and the small flame strength, it cannot meet the baking temperature and the gas pressure is unstable. Turning off the flame during the roasting process poses a safety hazard.

[0015] Improved equipment: gas nozzle built-in

[0016] There are 2 gas drums with a diameter of 150mm and a length of 2100mm built in the alloy silo. Each gas drum supplies 2 baki...

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Abstract

The invention discloses a fixed alloy gas roasting device which comprises four roasting grids, two gas steam pockets and an air steam pocket, wherein the four roasting grids form an alloy storage bin; the two gas steam pockets are arranged in the alloy storage bin; a shared air steam pocket is arranged outside the alloy storage bin; each gas steam pocket is used by two roasting grids; three gas nozzles are arranged in each roasting grid; the outer side of a gas pipe in the gas steam pocket is coated with an air pipe of the air steam pocket; and special gas valves are arranged at the gas inlets and outlets of the gas steam pockets and air steam pocket. According to the device disclosed by the invention, four alloys can be simultaneously roasted, pressure of gas and air can be stabilized by the steam pockets, the amount of the roasted alloys is about 4-8tons, continuous production of lots of roasted alloys is met, the operation is simple, the flexibility is high, the gas energy can be saved, the smelting cost of tons of steel is reduced, and personal injury or equipment damage accidents are reduced.

Description

technical field [0001] The invention relates to the technical field of steelmaking equipment, in particular to a fixed alloy gas roasting device. Background technique [0002] After more than 40 years of development in my country's steel production, especially in the past 20 years, there has been a phenomenon of overcapacity at this stage. In addition, the current steel industry is in a downturn. Large, due to the limitation of the special steel workshop, the high-level silo of the LF furnace (Ladle Furnace, ladle refining furnace) cannot be baked, and can only be baked in the low-level silo. During the smelting process, a large amount of alloys are added to molten steel , It will cause the content of hydrogen, oxygen, nitrogen and other gases in the steel to increase, and at the same time cause the temperature of molten steel to drop sharply, which will affect the smelting rhythm. Contents of the invention [0003] The object of the present invention is to provide a fixed ...

Claims

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Application Information

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Patent Type & Authority Applications(China)
IPC IPC(8): C21C7/00
Inventor 陈小龙杜波李春生
Owner HANDAN XINXING SPECIAL TUBING CO LTD
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