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Explosion suppression system and method applied to steel converter gas recovery

A steel-making converter and converter gas technology, which is applied in the manufacture of converters, measuring devices, instruments, etc., can solve problems such as endangering the safety of converter equipment and production personnel, reduce energy consumption, reduce sewage discharge, and ensure safe recycling Effect

Active Publication Date: 2011-02-16
INST OF MECHANICS - CHINESE ACAD OF SCI
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  • Summary
  • Abstract
  • Description
  • Claims
  • Application Information

AI Technical Summary

Problems solved by technology

Once a gas explosion occurs, it will greatly endanger the safety of converter equipment and production personnel

Method used

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  • Explosion suppression system and method applied to steel converter gas recovery
  • Explosion suppression system and method applied to steel converter gas recovery
  • Explosion suppression system and method applied to steel converter gas recovery

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Embodiment Construction

[0020] Such as figure 1 As shown, the embodiment of the present invention provides an explosion containment system applied to steelmaking converter gas recovery, the system includes: on the wall surface of the converter gas pipeline 1, a gas detector 2, an explosion detector 3, a suppression Explosion device 4, explosion relief valve 5, gas detector 2 and explosion detector 3 are installed upstream of converter gas pipeline 1, and gas detector 2 is used for real-time detection of CO and O 2 The ratio in the flue gas, the explosion detector 3 is used to monitor the pressure in the converter gas pipeline 1, wherein the explosion detector 3 is a photosensitive sensor and / or a pressure sensor, and the explosion suppressor 4 is started by the explosion suppressant nozzle 41, Valve 42, antiknock agent pipeline 43, antiknock agent storage tank 44 and antiknock agent 45 are formed, one end of the antiknock agent spout 41 is connected with the antiknock agent storage tank 44 through th...

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PUM

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Abstract

The invention provides an explosion suppression system applicable to steelmaking converter gas recovery and a method thereof. The system comprises a detection device, a safety device and a control device; the detection device comprises a gas detector and an explosive detector; the safety device comprises an explosion suppressor and an explosion unloading valve; the explosion suppressor is used for blocking the explosive development process in a converter gas conduit and suppressing the explosion within a safety range, and the control device receives a signal from the detection device, and controls the safety device to operate according to the signal. In the method, the possible explosion is prejudged according to concentration detection of CO and O2 and then explosion warning alarm is sent out in the converter smelting process; a suppressant is timely sprayed at the conduit downstream when initial explosion occurs, thus blocking the explosive development process and finally suppressing the explosion within the safety range; meanwhile, explosion pressure is unloaded from the conduit so as to ensure the production safety of converter equipment.

Description

technical field [0001] The invention relates to the technical field of safe recovery of steelmaking converter gas and sensible heat thereof. In particular, it relates to an explosion containment system and method after an initial explosion occurs in a steelmaking converter gas pipeline. Background technique [0002] At present, in the iron and steel smelting industry, for the recovery of blast furnace gas and converter gas, the gas wet recovery system (OG method) or gas dry recovery technology (LT method) is basically adopted, of which the OG method accounts for more than 90%. Taking steel-making converters as an example, among the more than 550 existing converters in my country, more than 50 have recovered converter gas, of which only two 250-ton converters at Baosteel and three 120-ton converters at Laiwu Steel have used the gas dry process Recycling technology (LT method), the rest almost all adopt OG method. Whether it is the OG method or the LT method, a common feature...

Claims

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Application Information

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Patent Type & Authority Patents(China)
IPC IPC(8): G01N25/00C21C5/28
Inventor 余立新魏小林李博李腾张宇
Owner INST OF MECHANICS - CHINESE ACAD OF SCI
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