CN103276139B - Nitrogen dilution explosion protection system in a kind of converter gas dry method cooling, purifying recovery system - Google Patents
Nitrogen dilution explosion protection system in a kind of converter gas dry method cooling, purifying recovery system Download PDFInfo
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- CN103276139B CN103276139B CN201310229007.6A CN201310229007A CN103276139B CN 103276139 B CN103276139 B CN 103276139B CN 201310229007 A CN201310229007 A CN 201310229007A CN 103276139 B CN103276139 B CN 103276139B
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- Y—GENERAL TAGGING OF NEW TECHNOLOGICAL DEVELOPMENTS; GENERAL TAGGING OF CROSS-SECTIONAL TECHNOLOGIES SPANNING OVER SEVERAL SECTIONS OF THE IPC; TECHNICAL SUBJECTS COVERED BY FORMER USPC CROSS-REFERENCE ART COLLECTIONS [XRACs] AND DIGESTS
- Y02—TECHNOLOGIES OR APPLICATIONS FOR MITIGATION OR ADAPTATION AGAINST CLIMATE CHANGE
- Y02P—CLIMATE CHANGE MITIGATION TECHNOLOGIES IN THE PRODUCTION OR PROCESSING OF GOODS
- Y02P10/00—Technologies related to metal processing
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Abstract
Nitrogen dilution explosion protection system in converter gas dry method cooling, purifying recovery system provided by the invention, primarily of nitrogen pot, the pneumatic immediate action valve be arranged in nitrogen pipeline, is arranged on gas analyzer on the smoke-intake pipe road of electrostatic precipitator and controls according to the acquired signal of this gas analyzer the controller that pneumatic immediate action valve opens or close and form.This nitrogen dilution explosion protection system can be arranged on flue gas enter electrostatic precipitator before pipeline on, smoke components can be detected in good time, in flue, spray into nitrogen instantaneously when flue gas is within the scope of limits of explosion to dilute, thus reduce or avoid blasting in electric precipitator.
Description
Technical field
The invention belongs to a kind of coal gas dilution explosion protection system device, it is adapted in converter gas dry method cooling, purifying recovery system, also can be applied in the dilution of the poisonous of other industry or explosion hazard gases, be specifically related to the nitrogen dilution explosion protection system in a kind of converter gas dry method cooling, purifying recovery system.
Background technology
Recovery Purifying and utilize coal gas of converter technology first from Japan, this and Japan Energy lack much relations.Japan starts just to have installed wet method (OG method) converter coal gas purification recovery system in steel mill of Yawata for 1962, really worldwide construction RECOVERY OF CONVERTER GAS equipment last century the mid-1970s energy dilemma start.Originally developing wet method (OG method) is that the method does not adopt high-pressure static cleaner to be in order to avoid coal gas of converter is blasted within it because coal gas of converter is a kind of flammable explosive gas, its sense of security of giving a kind of psychology of people steady and sure of wet method (OG method).But West Germany Shandong is strange, Thyssen Aktiengesellschaft developed in 1969 and installed first set coal gas of converter high-pressure electrostatic precipitation Recovery Purifying equipment in the Pai Na steel mill of Sa Erjite, it is exactly converter gas dry method (LT method) first set equipment.
In recent years, China advocates energetically and promotes converter gas dry method cooling, purifying recovery technology in energy-saving and emission-reduction, it is than Wet technique not only energy-conservation but also environmental protection, but in order to reduce the venting of dust explosion of the electric precipitator in this system, the flushing and casting of this technology to converter is had higher requirement, and where such as oxygen rifle is opening oxygen blast, and it is how many etc. for opening oxygen blown intensity, in order to reduce the constraint to flushing and casting, also in order to avoid stokehold unforeseen circumstances.It is periodic that Converter Oxigen Blowing is smelted, smoke components (mainly CO, CO
2, N
2, O
2) also change with smelting cycle, electrostatic precipitator is the crucial dust removal installation in this system, electrostatic precipitator inside has high voltage electrostatic discharge to produce the phenomenon of electric arc, therefore the periodically variable flue gas entered probably is blasted therein, therefore need to carry out detection and control to the smoke components entered in electrostatic precipitator, prevent the generation of exploding.And there is no this antiknock device at present.
Summary of the invention
The object of this invention is to provide the nitrogen dilution explosion protection system in a kind of converter gas dry method cooling, purifying recovery system, to carry out detection and control to the smoke components entered in electrostatic precipitator, prevent the generation of exploding.
For this reason, the invention provides the nitrogen dilution explosion protection system in a kind of converter gas dry method cooling, purifying recovery system, primarily of nitrogen pot, the pneumatic immediate action valve be arranged in nitrogen pipeline, be arranged on gas analyzer on the smoke-intake pipe road of electrostatic precipitator and control according to the acquired signal of this gas analyzer the controller that pneumatic immediate action valve opens or close and form.
Above-mentioned nitrogen pipeline is provided with the ball valve be placed between pneumatic immediate action valve and nitrogen pot.
Above-mentioned nitrogen pipeline is provided with reverse checkvalve, and this reverse checkvalve is placed in the pneumatic outlet side of pneumatic immediate action valve.
Nitrogen dilution explosion protection system provided by the invention can be arranged on flue gas enter electrostatic precipitator before pipeline on, smoke components can be detected in good time, in flue, spray into nitrogen instantaneously when flue gas is within the scope of limits of explosion to dilute, thus reduce or avoid blasting in electric precipitator.
Accompanying drawing explanation
Below with reference to accompanying drawing, the present invention is described in further details:
Fig. 1 is the application schematic diagram of the nitrogen dilution explosion protection system in a kind of converter gas dry method cooling, purifying recovery system.
In figure: 1, nitrogen pot; 2, pneumatic immediate action valve; 3, gas analyzer; 4, nitrogen pipeline; 5, ball valve; 6, reverse checkvalve; 7, electrostatic precipitator; 8, smoke-intake pipe road.
Embodiment
In order to realize carrying out detection and control to the smoke components entered in electrostatic precipitator, prevent the generation of exploding, present embodiments provide the nitrogen dilution explosion protection system in the converter gas dry method cooling, purifying recovery system shown in a kind of Fig. 1, primarily of nitrogen pot 1, the pneumatic immediate action valve 2 be arranged in nitrogen pipeline 4, be arranged on gas analyzer 3 on the smoke-intake pipe road of electrostatic precipitator and control according to the acquired signal of this gas analyzer 3 controller that pneumatic immediate action valve 2 opens or close and form.Smoke components can be detected by the gas analyzer 3 on the smoke-intake pipe road 8 before being arranged on flue gas and entering electrostatic precipitator 7 in good time, when flue gas is within the scope of limits of explosion, the pneumatic immediate action valve 2 in nitrogen pipeline 4 is opened by controller (Controlling System), moment sprays into nitrogen and dilutes in flue, thus reduces or avoid blasting in electric precipitator.
For the ease of inspection and maintenance, the present embodiment is provided with the ball valve 5 be placed between pneumatic immediate action valve 2 and nitrogen pot 1 in nitrogen pipeline 4.And in order to prevent coal gas from pouring in down a chimney in nitrogen pipeline 4, be provided with reverse checkvalve 6 in the nitrogen pipeline 4 of the pneumatic outlet side of pneumatic immediate action valve 2.
In sum, be not difficult to find out that the nitrogen dilution explosion protection system in the converter gas dry method cooling, purifying recovery system that the present embodiment provides not only reduces the venting of dust explosion frequency of electric precipitator, ensure that safety in production, and ensure that the operating rate of converter, energy-conserving and environment-protective, non-secondary pollution again, and running cost is low.It should be noted that the nitrogen pressure passed in the present embodiment is generally 0.8MPa, flow is 2000 ~ 3500 Nm
3/ h, nitrogen gas purity is not less than 99.99%.
More than exemplifying is only illustrate of the present invention, does not form the restriction to protection scope of the present invention, everyly all belongs within protection scope of the present invention with the same or analogous design of the present invention.
The parts that the present embodiment does not describe in detail and structure belong to the well-known components of the industry and common structure or conventional means, do not describe one by one here.
Claims (1)
1. the nitrogen dilution explosion protection system in converter gas dry method cooling, purifying recovery system, is characterized in that: primarily of nitrogen pot (1), the pneumatic immediate action valve (2) be arranged in nitrogen pipeline (4), be arranged on gas analyzer (3) on the smoke-intake pipe road (8) of electrostatic precipitator (7) and control according to the acquired signal of this gas analyzer (3) controller that pneumatic immediate action valve (2) opens or close and form; Described nitrogen pipeline (4) is provided with the ball valve (5) be placed between pneumatic immediate action valve (2) and nitrogen pot (1); Described nitrogen pipeline (4) is provided with reverse checkvalve (6), this reverse checkvalve (6) is placed in the pneumatic outlet side of pneumatic immediate action valve (2); The nitrogen pressure passed into is 0.8MPa, and flow is 2000 ~ 3500 Nm
3/ h, nitrogen gas purity is not less than 99.99%.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201310229007.6A CN103276139B (en) | 2013-06-09 | 2013-06-09 | Nitrogen dilution explosion protection system in a kind of converter gas dry method cooling, purifying recovery system |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201310229007.6A CN103276139B (en) | 2013-06-09 | 2013-06-09 | Nitrogen dilution explosion protection system in a kind of converter gas dry method cooling, purifying recovery system |
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| Publication Number | Publication Date |
|---|---|
| CN103276139A CN103276139A (en) | 2013-09-04 |
| CN103276139B true CN103276139B (en) | 2015-09-16 |
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| CN201310229007.6A Active CN103276139B (en) | 2013-06-09 | 2013-06-09 | Nitrogen dilution explosion protection system in a kind of converter gas dry method cooling, purifying recovery system |
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Families Citing this family (9)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN104084701B (en) * | 2014-06-20 | 2016-05-11 | 盐城雄鹰精密机械有限公司 | Nitrogen gas recovering apparatus in timber laser cutting |
| CN106048131B (en) * | 2016-08-05 | 2019-05-03 | 中冶赛迪工程技术股份有限公司 | Explosion prevention controlling process and device based on converter electric precipitator system |
| CN108265152B (en) * | 2016-12-30 | 2020-01-07 | 北京凯德恒源科技发展有限公司 | Converter steelmaking gas full recovery process based on nitrogen compensation and control method thereof |
| CN107421580B (en) * | 2017-05-27 | 2023-06-02 | 山西大学 | Double-electric-field air locking type electric dust collector testing device |
| CN108265154A (en) * | 2018-03-04 | 2018-07-10 | 北京首钢国际工程技术有限公司 | A kind of automatic control system for preventing converter smelting coal gas venting of dust explosion |
| CN108591826A (en) * | 2018-04-23 | 2018-09-28 | 睿力集成电路有限公司 | Gas handling system and processing method |
| CN111974179A (en) * | 2019-05-23 | 2020-11-24 | 西北农林科技大学 | Electrostatic trapping assisted condensing device and method for industrial organic waste gas treatment |
| CN111992009B (en) * | 2020-08-26 | 2022-05-17 | 安徽华创环保设备科技有限公司 | Tail gas purification early warning system based on regeneration metal smelting |
| CN117587187B (en) * | 2023-11-16 | 2024-10-25 | 中国科学院力学研究所 | Converter explosion-proof method based on gas pulse |
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| CN101554617A (en) * | 2008-12-17 | 2009-10-14 | 中国重型机械研究院 | Method for designing cylindrical horizontal wet electrical dust precipitator |
| CN101570808A (en) * | 2009-05-31 | 2009-11-04 | 中冶京诚工程技术有限公司 | Converter gas dry dedusting system and explosion-proof device thereof |
| CN201411467Y (en) * | 2009-05-31 | 2010-02-24 | 中冶京诚工程技术有限公司 | Converter gas dry dedusting system and explosion-proof device thereof |
| CN101875993A (en) * | 2010-07-30 | 2010-11-03 | 中冶南方工程技术有限公司 | System for removing dust from converter gas by dry method and using method thereof |
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- 2013-06-09 CN CN201310229007.6A patent/CN103276139B/en active Active
Patent Citations (4)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN101554617A (en) * | 2008-12-17 | 2009-10-14 | 中国重型机械研究院 | Method for designing cylindrical horizontal wet electrical dust precipitator |
| CN101570808A (en) * | 2009-05-31 | 2009-11-04 | 中冶京诚工程技术有限公司 | Converter gas dry dedusting system and explosion-proof device thereof |
| CN201411467Y (en) * | 2009-05-31 | 2010-02-24 | 中冶京诚工程技术有限公司 | Converter gas dry dedusting system and explosion-proof device thereof |
| CN101875993A (en) * | 2010-07-30 | 2010-11-03 | 中冶南方工程技术有限公司 | System for removing dust from converter gas by dry method and using method thereof |
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| CN103276139A (en) | 2013-09-04 |
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