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Method for improving dust collection efficiency of electrostatic dust collector of converter

An electrostatic precipitator and efficiency technology, which is applied in the field of improving the dust removal efficiency of an electrostatic precipitator for converter dry dust removal, can solve problems such as inability to distribute evenly, and achieve the effects of avoiding high dust removal pressure, improving efficiency, and reducing smoke generation.

Inactive Publication Date: 2021-06-18
ANGANG STEEL CO LTD
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  • Abstract
  • Description
  • Claims
  • Application Information

AI Technical Summary

Problems solved by technology

The main reason for this phenomenon is that the converter flue gas cannot be evenly distributed after entering the electrostatic precipitator.

Method used

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  • Method for improving dust collection efficiency of electrostatic dust collector of converter
  • Method for improving dust collection efficiency of electrostatic dust collector of converter
  • Method for improving dust collection efficiency of electrostatic dust collector of converter

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Embodiment Construction

[0023] The specific embodiment of the present invention will be further described below in conjunction with accompanying drawing:

[0024] A kind of method of improving dust removal efficiency of converter electrostatic precipitator described in the present invention comprises:

[0025] 1) Structural improvement of the inlet flue gas distribution plate of the electrostatic precipitator;

[0026] a, a plurality of flue gas distribution plates 12 located at the enlarged diameter section 11 at the flue gas inlet of the electrostatic precipitator 1 adopt conical flue gas distribution plates 13 (such as figure 2 As shown), the large end of the conical flue gas distribution plate 13 is facing the inside of the electrostatic precipitator 1, and is fixedly connected with the cylinder wall of the enlarged diameter section 11;

[0027] b, the opening ratio of the smoke guide hole 14 on the conical smoke distribution plate 13 gradually increases from the center to the periphery (such a...

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Abstract

The invention relates to a method for improving dust collection efficiency of an electrostatic dust collector of a converter, comprising: 1) improving the structure of a flue gas distribution plate at an inlet of the electrostatic dust collector; and 2) dividing the smelting process into an early smelting stage, a middle smelting stage and a later smelting stage according to the reaction rate during smelting of the converter, and respectively associating the revolution of a fan connected with the electrostatic dust collector with three stages in the smelting process. By improving the shape of the flue gas distribution plate and adjusting the opening density of flue gas guide holes, flue gas is uniformly distributed in an electric field, the dust removal pressure in the middle of the polar plate is reduced, and the dust removal efficiency of the electrostatic field is improved; and meanwhile, the rotating speed of the fan is associated with the converter smelting process, and long-time high-load operation of the electrostatic field is avoided.

Description

technical field [0001] The invention relates to the technical field of converter dedusting, in particular to a method for improving the dedusting efficiency of an electrostatic precipitator used for converter dry dedusting. Background technique [0002] The converter dry dust removal system adopts the electrostatic precipitator, which has the advantages of high dust removal efficiency, low comprehensive operation cost, and high dust utilization rate; but in the actual production process, after a long time of operation, the dust removal efficiency of the electrostatic precipitator is obviously reduced, and the plate The problem of heavy load in the middle area and less ash absorption in the periphery. The main reason for this phenomenon is that the converter flue gas cannot be evenly distributed after entering the electrostatic precipitator. [0003] The flue gas inlet of the electrostatic precipitator is provided with a diameter-expanding section, and a plurality of flue ga...

Claims

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Application Information

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Patent Type & Authority Applications(China)
IPC IPC(8): C21C5/40
CPCC21C5/40
Inventor 孙群王一名吴春杰何海龙宋吉锁
Owner ANGANG STEEL CO LTD
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