Method for calculating blast momentum in blast furnace production process

A technology of blasting kinetic energy and production process, which is applied in the field of ironmaking, can solve the problems of failure to achieve major technological breakthroughs, failure to realize the determination method of blast kinetic energy, etc., and achieve the effect of ensuring longevity and production

Inactive Publication Date: 2018-08-14
ANGANG STEEL CO LTD
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  • Summary
  • Abstract
  • Description
  • Claims
  • Application Information

AI Technical Summary

Problems solved by technology

"Discussion on Blast Furnace Blast Kinetic Energy at High Coal Injection" ("Hunan Metallurgy", 2006, Volume 34, Issue 3, 21), "The Influence and Control of Blast Furnace Kinetic Energy on Blast Furnace Smelting" ("Ironmaking", 2005) , 24 volumes, 4th issue, 6), "Controlling appropriate blasting kinetic energy to ensure stable and high production of blast furnace" ("Journal of Anhui University of Technology", 2003, 20th volume, 4th issue, 235) etc.) They als

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  • Method for calculating blast momentum in blast furnace production process
  • Method for calculating blast momentum in blast furnace production process
  • Method for calculating blast momentum in blast furnace production process

Examples

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Comparison scheme
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Example Embodiment

[0015] Example 1:

[0016] Effective furnace capacity of blast furnace 450m 3 .

[0017] Operating parameters of the original blast furnace production process:

[0018] The operating parameters of the original production process of the blast furnace and the calculation results of the kinetic energy of the blast are shown in Table 1.

[0019] Table 1 Original operating parameters of blast furnace and calculation results of blast kinetic energy

[0020]

[0021]

[0022] Optimal adjustment of operating parameters:

[0023] Through the analysis of the blast kinetic energy in the original production process of the blast furnace, the blast kinetic energy under the initial operating conditions is 54200J / s, and the blast kinetic energy is relatively small. The blast furnace blast kinetic energy standard of the same volume in the industry is maintained above 56000J / s, so , The kinetic energy of the blast should be increased, and the relevant operating parameters should be adjusted. The adjuste...

Example Embodiment

[0030] Example 2:

[0031] Effective furnace capacity of blast furnace 1280m 3 .

[0032] Operating parameters of the original production process of the blast furnace: see Table 4 for the operating parameters of the original production process of the blast furnace and the calculation results of the kinetic energy of the blast furnace.

[0033] Table 4 Original blast furnace operating parameters and calculation results of blast kinetic energy

[0034]

[0035]

[0036] Optimal adjustment of operating parameters:

[0037] Through the analysis of the blast kinetic energy in the original production process of the blast furnace, the blast kinetic energy under the initial operating conditions is 68,750 J / s, and the blast kinetic energy is relatively small. The blast furnace blast kinetic energy standard of the same volume in the industry is maintained above 70,000 J / s, so , The blast kinetic energy should be increased, and the relevant operating parameters should be adjusted. The adjusted bl...

Example Embodiment

[0044] Example 3:

[0045] Effective furnace capacity of blast furnace 2580m 3 .

[0046] Operating parameters of the original production process of the blast furnace: see Table 7 for the operating parameters of the original production process of the blast furnace and the calculation results of the kinetic energy of the blast furnace.

[0047] Table 7 Original blast furnace operating parameters and calculation results of blast kinetic energy

[0048]

[0049]

[0050] Optimize operation parameter adjustment:

[0051] Through the analysis of the blast kinetic energy in the original production process of the blast furnace, the blast kinetic energy under the initial operating conditions is 82170J / s, and the blast kinetic energy is relatively small. The blast furnace blast kinetic energy standard of the same volume in the industry is maintained above 83000J / s, so , The blast kinetic energy should be increased, and the relevant operating parameters should be adjusted. The adjusted blast fur...

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Abstract

The invention provides a method for calculating the blast momentum in a blast furnace production process, wherein the real-time blast momentum in the blast furnace production process is calculated according to the controllable operation parameters of blast furnaces with different converter capacities during the daily production process, and the controllable operation parameters comprise the coefficient, the blast furnace blast volume GFL, the rich oxygen content FYL in the blast, the blast humidity GFSF, the hot air temperature RFWD, the blast pressure GFYL, the working air port number FKGS, the nitrogen density k1, the oxygen density k2, the gravity acceleration k3, the water vapor density, the Kelvin temperature k5 at the temperature of 0 DEG C, and the atmospheric pressure k6 under thestandard state. According to the present invention, with the method, the reasonable blast momentum can be onlinely and real-timely controlled during the blast furnace production, such that the reasonable daily blast furnace production operation is performed from the formation and control angle of the reasonable coal gas flow inside the furnace hearth so as to ensure the long service life of the blast furnace and the low consumption, stability and smooth operation of the production.

Description

technical field [0001] The invention belongs to the technical field of ironmaking, and in particular relates to a method for calculating suitable blast kinetic energy in blast furnace production according to different operating parameter conditions of the blast furnace. Background technique [0002] Modern iron and steel complexes have extremely high requirements on the continuity and stability of production, and blast furnace ironmaking is the throat of modern iron and steel enterprises. The safety, stability and smooth operation of blast furnaces are of great significance to the logistics balance of the entire iron and steel production. The good operation of the blast furnace lies in the formation of the initial gas flow in the furnace and the reasonable distribution of the secondary and tertiary gas flow, and the generation and reasonable distribution of the gas flow mainly depend on the appropriate blast kinetic energy in production. Therefore, reasonable control and adj...

Claims

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Application Information

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IPC IPC(8): C21B5/00
CPCC21B5/006
Inventor 张立国李晓伟张伟王再义任伟邓伟王亮韩子文李金莲姜喆
Owner ANGANG STEEL CO LTD
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