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Converter primary flue gas treatment system and treatment method

A flue gas treatment system and flue gas treatment technology, applied in the manufacture of converters, etc., can solve problems affecting the safety of production in iron and steel enterprises, deflagration at the end of vaporization cooling flue, etc.

Active Publication Date: 2022-03-22
SHOUGANG CORPORATION
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  • Summary
  • Abstract
  • Description
  • Claims
  • Application Information

AI Technical Summary

Problems solved by technology

[0004] The embodiment of the present application provides a converter primary flue gas treatment system and treatment method, which solves the technical problem that deflagration accidents often occur at the tail of the vaporization cooling flue in the prior art, which seriously affects the safe production of iron and steel enterprises

Method used

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  • Converter primary flue gas treatment system and treatment method

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Embodiment 1

[0024] Such as figure 1 As shown, this embodiment provides a converter primary flue gas treatment system, including:

[0025] Vaporization cooling flue 2, electric heating plug-in 3, thermocouple 4, dust removal system 5;

[0026] The inlet end of the vaporization cooling flue 2 is connected to the steelmaking converter 1, and the outlet end of the vaporization cooling flue 2 is connected to the dust removal system 5;

[0027] The extractable electric heating insert 3 is arranged in the pipe near the outlet end of the vaporization cooling flue 2 ;

[0028] The thermocouple 4 is arranged in the pipeline of the vaporization cooling flue 2 between the electric heating insert 3 and the outlet end.

[0029] Specific processing process:

[0030] The primary flue gas produced during the smelting process of the steelmaking converter 1 is pumped into the vaporization cooling flue 2; it should be noted that the primary flue gas refers to the by-products generated during the blowing p...

Embodiment 2

[0048] Such as figure 1 As shown, this embodiment provides a primary converter flue gas treatment method, which is applied to the converter primary flue gas treatment system described in any one of the first embodiments, including:

[0049] When the steelmaking converter 1 starts blowing, insert the electric heating insert 3 into the vaporization cooling flue 2;

[0050] Controlling the vaporization cooling flue 2 to cool the primary flue gas from the steelmaking converter 1 to recover waste heat;

[0051] controlling the thermocouple 4 to detect the temperature of the primary flue gas flowing through;

[0052] When the temperature of the primary flue gas is lower than a first preset threshold, the electric heating insert 3 is controlled to start heating the primary flue gas, wherein the first preset threshold is greater than the ignition point of carbon monoxide;

[0053] The dust removal system 5 is controlled to remove dust from the heated primary flue gas.

[0054] As a...

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Abstract

The invention discloses a primary flue gas treatment system of a converter, comprising: a vaporization cooling flue, an electric heating insert, a thermocouple, and a dust removal system; the inlet end of the vaporization cooling flue is connected to a steelmaking converter; The outlet end of the duct is connected to the dust removal system; the electric heating insert that can be withdrawn is set in the pipeline near the outlet end of the vaporization cooling flue; the thermocouple is arranged at the position of the vaporization cooling flue In the pipeline between the electric heating insert and the outlet port. The application can ensure that the temperature of the primary flue gas in the vaporization cooling flue is always higher than the ignition point of CO, so that the mixture of CO and O2 in the flue gas cannot reach the explosive condition, thereby ensuring the safe and stable operation of the primary flue gas vaporization cooling flue of the steelmaking converter.

Description

technical field [0001] The invention relates to the technical field of primary flue gas treatment of a steelmaking converter, in particular to a primary flue gas treatment system and method for a converter. Background technique [0002] Primary flue gas refers to the by-products generated during the blowing process of the converter, which are collected uniformly through the chimney. After the primary flue gas of the steelmaking converter is processed, a large amount of converter gas with high calorific value can be recovered. the key of. Therefore, it is very important for iron and steel enterprises to ensure the safe and stable operation of the primary flue gas treatment system of steelmaking converters. [0003] At present, one of the main factors affecting the safe and stable operation of the primary flue gas treatment system of steelmaking converters is that deflagration accidents often occur at the tail of the vaporization cooling flue, which seriously affects the saf...

Claims

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Application Information

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Patent Type & Authority Patents(China)
IPC IPC(8): C21C5/40
CPCC21C5/40
Inventor 杨小龙李劲松高攀张效鹏陈冠军
Owner SHOUGANG CORPORATION
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