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Converter primary flue gas treatment system and method

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

Active Publication Date: 2020-05-19
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 method
  • Converter primary flue gas treatment system and method

Examples

Experimental program
Comparison scheme
Effect test

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 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 process of t...

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 converter primary flue gas treatment system which comprises an evaporative cooling flue, an electric heating plug-in, a thermocouple and a dust removing system. The inlet endof the evaporative cooling flue is connected with a steelmaking converter. The outlet end of the evaporative cooling flue is connected with the dust removing system. The electric heating plug-in capable of being drawn out is arranged at the position, close to the outlet end, of a pipeline of the evaporative cooling flue. The thermocouple is arranged at the position, between the electric heating plug-in and the outlet end, of the pipeline of the the evaporative cooling flue. By means of the converter primary flue gas treatment system, it can be ensured that the temperature of primary flue gasin the evaporative cooling flue is higher than the CO ignition point all the time, a mixture of CO and O2 in flue gas cannot reach the explosion condition, and therefore safety and stability of running of the primary flue gas evaporative cooling flue of the steelmaking converter are ensured.

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 Applications(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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