Unlock instant, AI-driven research and patent intelligence for your innovation.

Alloy baking method for reducing blocking rate of burner

A baking method and alloy technology, applied in the field of steelmaking, can solve problems such as easy clogging of burners

Active Publication Date: 2020-09-18
SHOUGANG CORPORATION
View PDF9 Cites 0 Cited by
  • Summary
  • Abstract
  • Description
  • Claims
  • Application Information

AI Technical Summary

Problems solved by technology

[0006] Aiming at the deficiencies of the above prior art, the present invention provides an alloy baking method that reduces the clogging rate of the burner, so as to solve the problem that the burner is easy to be clogged in the alloy baking in the prior art

Method used

the structure of the environmentally friendly knitted fabric provided by the present invention; figure 2 Flow chart of the yarn wrapping machine for environmentally friendly knitted fabrics and storage devices; image 3 Is the parameter map of the yarn covering machine
View more

Examples

Experimental program
Comparison scheme
Effect test

Embodiment 1

[0055] The capacity of the alloy silo is 15t, and the material structure of nickel-iron alloy on the top and scrap steel on the bottom is used for baking. The baking time is 3 hours, and the alloy temperature after baking is 350°C. Wherein, the mass ratio of the steel scrap to the nickel-iron alloy is 0.3, and the size of the steel scrap is 10-1000mm in length, 5-500mm in width, and 0.5-300mm in height. The particle size of nickel-iron alloy is 25-220mm. In the converter smelting process, all the baked nickel-iron alloy and scrap steel are added into the molten steel. With this method, the frequency of blockage of the burner at the bottom of the silo is once a year.

Embodiment 2

[0057] The capacity of the alloy silo is 23t, and the material structure of aluminum and iron on the top and scrap steel on the bottom is used for baking. Among them, the mass ratio of scrap steel to aluminum and iron is 0.067, and the size of scrap steel is controlled to be 10 to 1000mm in length and 5 to 5 in width. 500mm, the height is 0.5-300mm; the particle size of aluminum and iron is 30-240mm. The baking time is 3.2 hours, and the final baking actual temperature is 330°C. The above-mentioned baked aluminum iron and scrap steel are added into the converter tapping molten steel for deoxidation alloying, the temperature drop of the molten steel is small, and the purity is not affected by the scrap steel. With this method, the frequency of blockage of the burner at the bottom of the silo is once a year.

Embodiment 3

[0059] The capacity of the alloy silo is 18t. The material structure of the copper alloy on the top and the scrap steel on the bottom is used for baking. The mass ratio of scrap steel and copper alloy is 0.45. The size of scrap steel is 10-1000mm in length, 5-500mm in width, and 0.5-300mm; the particle size of copper alloy is 35-280mm. The baking time is 3.5 hours, and the temperature of the copper alloy after baking is 370°C. In the converter smelting process, all the baked nickel-iron alloy and scrap steel are added into the molten steel. With this method, the frequency of blockage of the burner at the bottom of the silo is once a year.

the structure of the environmentally friendly knitted fabric provided by the present invention; figure 2 Flow chart of the yarn wrapping machine for environmentally friendly knitted fabrics and storage devices; image 3 Is the parameter map of the yarn covering machine
Login to View More

PUM

PropertyMeasurementUnit
Lengthaaaaaaaaaa
Widthaaaaaaaaaa
Heightaaaaaaaaaa
Login to View More

Abstract

The invention discloses an alloy baking method for reducing the blocking rate of a burner. The method comprises the following steps that scrap steel is laid below a to-be-baked alloy; the scrap steelis heated through the burner, meanwhile, heat of the heated scrap steel is transferred to the to-be-baked alloy, and the baked alloy is obtained; the baked alloy is added into to-be-smelted molten steel; and the mass ratio of the scrap steel to the to-be-baked alloy is 0.01-0.5. According to the alloy baking method, the permeability of a baking material layer can be improved, the blocking rate ofthe burner can be reduced, the alloy baking temperature is uniform, the baking temperature is higher, the baking time is shortened, the production efficiency is high, and the temperature drop of the alloyed molten steel is reduced.

Description

technical field [0001] The invention belongs to the technical field of steelmaking, in particular to an alloy baking method for reducing burner clogging rate. Background technique [0002] Steelmaking is the process of smelting raw materials such as molten iron, scrap steel, alloys, lime and oxygen to obtain molten steel with qualified components. In the process of steelmaking, it is necessary to blow oxygen to decarburize. The decarburization process is a strong exothermic process. The heat released can increase the temperature of molten steel, which can ensure a certain degree of superheat of molten steel, so that continuous casting can proceed smoothly. In the process of steelmaking, the alloy composition needs to be adjusted, so it is also necessary to add alloys to the molten steel to achieve alloying, thereby adjusting the composition of the molten steel. Because the alloy has a certain moisture content, it will affect the quality of the molten steel, and at the same ...

Claims

the structure of the environmentally friendly knitted fabric provided by the present invention; figure 2 Flow chart of the yarn wrapping machine for environmentally friendly knitted fabrics and storage devices; image 3 Is the parameter map of the yarn covering machine
Login to View More

Application Information

Patent Timeline
no application Login to View More
IPC IPC(8): F26B23/02F26B25/00C21C5/28
CPCF26B23/02F26B25/003C21C5/28Y02P10/20
Inventor 初仁生刘金刚李战军邓小旋郝宁王卫华马长文李海波吕延春
Owner SHOUGANG CORPORATION