CN103276139A - Nitrogen dilution anti-explosion system in dry-method cooling and purifying recovery system for converter gas - Google Patents
Nitrogen dilution anti-explosion system in dry-method cooling and purifying recovery system for converter gas Download PDFInfo
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- CN103276139A CN103276139A CN2013102290076A CN201310229007A CN103276139A CN 103276139 A CN103276139 A CN 103276139A CN 2013102290076 A CN2013102290076 A CN 2013102290076A CN 201310229007 A CN201310229007 A CN 201310229007A CN 103276139 A CN103276139 A CN 103276139A
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- nitrogen
- explosion
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- smoke
- electrostatic precipitator
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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
- Y02P10/20—Recycling
Abstract
The invention provides a nitrogen dilution anti-explosion system in a dry-method cooling and purifying recovery system for a converter gas. The nitrogen dilution anti-explosion system mainly comprises a nitrogen tank, a rapid pneumatic valve arranged on a nitrogen pipe, a gas analyzer mounted on a smoke inlet pipeline of an electrostatic precipitator, as well as a controller, wherein the controller is used for controlling the rapid pneumatic valve to open or close according to a signal collected by the gas analyzer. The nitrogen dilution anti-explosion system can be mounted on the pipeline before smoke entering the electrostatic precipitator, smoke components can be detected timely, when smoke is in an explosion limit range, nitrogen is instantly sprayed into a flue for dilution, and accordingly, the explosion in the electrostatic precipitator is reduced or prevented.
Description
Technical field
The invention belongs to a kind of coal gas dilution explosion protection system device, it is adapted to the converter gas dry method cooling and purifies in the recovery system, also can be applied in the dilution of poisonous or explosion hazard gases of other industry, be specifically related to a kind of converter gas dry method cooling and purify nitrogen dilution explosion protection system in the recovery system.
Background technology
Purify recovery and utilize the coal gas of converter technology at first from Japan, this and Japan Energy lack much relations.Japan's beginning in 1962 has just been installed wet method (OG method) converter coal gas purification recovery system in Yawata steel mill, real worldwide build RECOVERY OF CONVERTER GAS equipment last century the mid-1970s energy dilemma begin.Originally developing wet method (OG method) is that it is to blast within it for fear of coal gas of converter that this method does not adopt high-pressure static cleaner because coal gas of converter is a kind of flammable explosive gas, and wet method (OG method) it give a kind of psychology of people the steady and sure sense of security.Yet the West Germany Shandong is strange, the first cover coal gas of converter high-pressure electrostatic precipitation purification recovery system has been installed in exploitation in 1969 and in the Pai Na of Sa Erjite steel mill by Thyssen Aktiengesellschaft, and it is exactly converter gas dry method (LT method) first complete equipment.
In recent years, China advocates energetically aspect energy-saving and emission-reduction and promotes converter gas dry method cooling purification recovery technology, 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, this technology is had higher requirement to the flushing and casting of converter, opens oxygen blast where such as the oxygen rifle, open oxygen blown intensity for what etc., in order to reduce the constraint to flushing and casting, also for fear of the stokehold unforeseen circumstances.It is periodic that Converter Oxigen Blowing is smelted, and smoke components (mainly is CO, CO
2, N
2, O
2) also change with smelting cycle, electrostatic precipitator is the crucial dust removal installation in this system, there is the phenomenon of high pressure static electricity discharge generation electric arc electrostatic precipitator inside, therefore the periodically variable flue gas that enters probably within it portion blast, therefore need the smoke components that enter in the electrostatic precipitator be detected and control, prevent the generation of exploding.And still there is not this antiknock device at present.
Summary of the invention
The purpose of this invention is to provide the nitrogen dilution explosion protection system in a kind of converter gas dry method cooling purification recovery system, so that the smoke components that enters in the electrostatic precipitator is detected and controls, prevent the generation of exploding.
For this reason, the invention provides the cooling of a kind of converter gas dry method and purify nitrogen dilution explosion protection system in the recovery system, mainly by nitrogen pot, be arranged on pneumatic immediate action valve on the nitrogen pipeline, be installed in the gas analyzer on the smoke-intake pipe road of electrostatic precipitator and control the controller that pneumatic immediate action valve opens or close according to the acquired signal of this gas analyzer and constitute.
Above-mentioned nitrogen pipeline is provided with the ball valve that places between pneumatic immediate action valve and the nitrogen pot.
Above-mentioned nitrogen pipeline is provided with reverse checkvalve, and this reverse checkvalve places pneumatic outlet one side of pneumatic immediate action valve.
Nitrogen dilution explosion protection system provided by the invention can be installed in flue gas and enter on the preceding pipeline of electrostatic precipitator, can detect smoke components in good time, moment sprays into nitrogen in the flue and dilutes in the time of in flue gas is in the limits of explosion scope, thereby reduces or avoid blasting in the electric precipitator.
Description of drawings
Below with reference to accompanying drawing the present invention is described in further details:
Fig. 1 is the application synoptic diagram that a kind of converter gas dry method cooling purifies the nitrogen dilution explosion protection system in the recovery system.
Among the 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 that the smoke components that enters in the electrostatic precipitator is detected and controls, prevent the generation of exploding, present embodiment provides a kind of converter gas dry method shown in Figure 1 cooling to purify nitrogen dilution explosion protection system in the recovery system, mainly by nitrogen pot 1, be arranged on pneumatic immediate action valve 2 on the nitrogen pipeline 4, be installed in the gas analyzer 3 on the smoke-intake pipe road of electrostatic precipitator and control the controller that pneumatic immediate action valve 2 opens or close according to the acquired signal of this gas analyzer 3 and constitute.Can detect smoke components by the gas analyzer 3 that is installed on the smoke-intake pipe road 8 before flue gas enters electrostatic precipitator 7 in good time, in the time of in flue gas is in the limits of explosion scope, open pneumatic immediate action valve 2 on the nitrogen pipeline 4 by controller (Controlling System), moment sprays into nitrogen in the flue and dilutes, thereby reduces or avoid blasting in the electric precipitator.
For the ease of maintenance and maintenance, present embodiment nitrogen pipeline 4 is provided with the ball valve 5 that places between pneumatic immediate action valve 2 and the nitrogen pot 1.And in order to prevent that coal gas from pouring in down a chimney in the nitrogen pipeline 4, be provided with reverse checkvalve 6 in the nitrogen pipeline 4 of pneumatic outlet one side of pneumatic immediate action valve 2.
In sum, be not difficult to find out that converter gas dry method cooling that present embodiment provides purifies the venting of dust explosion frequency that nitrogen dilution explosion protection system in the recovery system has not only reduced electric precipitator, guaranteed safety in production, and guaranteed 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 that feeds 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 only is to illustrate of the present invention, does not constitute the restriction to protection scope of the present invention, and the every and same or analogous design of the present invention all belongs within protection scope of the present invention.
The parts that present embodiment is not described in detail and structure belong to well-known components and common structure or the conventional means of the industry, here not narration one by one.
Claims (3)
1. converter gas dry method cooling purifies the nitrogen dilution explosion protection system in the recovery system, it is characterized in that: mainly by nitrogen pot (1), be arranged on pneumatic immediate action valve (2) on the nitrogen pipeline (4), be installed in the gas analyzer (3) on the smoke-intake pipe road (8) of electrostatic precipitator (7) and control the controller that pneumatic immediate action valve (2) opens or close according to the acquired signal of this gas analyzer (3) and constitute.
2. nitrogen dilution explosion protection system as claimed in claim 1, it is characterized in that: described nitrogen pipeline (4) is provided with the ball valve (5) that places between pneumatic immediate action valve (2) and the nitrogen pot (1).
3. nitrogen dilution explosion protection system as claimed in claim 1 or 2, it is characterized in that: described nitrogen pipeline (4) is provided with reverse checkvalve (6), and this reverse checkvalve (6) places pneumatic outlet one side of pneumatic immediate action valve (2).
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
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| 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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| CN103276139A true CN103276139A (en) | 2013-09-04 |
| CN103276139B CN103276139B (en) | 2015-09-16 |
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Cited By (7)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN104084701A (en) * | 2014-06-20 | 2014-10-08 | 张婧如 | Device for recovering nitrogen during laser cutting of wood |
| CN106048131A (en) * | 2016-08-05 | 2016-10-26 | 中冶赛迪工程技术股份有限公司 | Converter electric precipitator system-based explosion-proof control method and device |
| CN107421580A (en) * | 2017-05-27 | 2017-12-01 | 山西大学 | A kind of dual field air-locked type electric cleaner test 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 |
| CN108265152A (en) * | 2016-12-30 | 2018-07-10 | 北京凯德恒源科技发展有限公司 | Pneumatic steelmaking coal gas complete recovering technique and its control method based on nitrogen compensation |
| CN108591826A (en) * | 2018-04-23 | 2018-09-28 | 睿力集成电路有限公司 | Gas handling system and processing method |
| CN111992009A (en) * | 2020-08-26 | 2020-11-27 | 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 |
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| CN101570808A (en) * | 2009-05-31 | 2009-11-04 | 中冶京诚工程技术有限公司 | Dry converter coal gas dust-removal system and explosion protection device thereof |
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| 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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Cited By (11)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN104084701A (en) * | 2014-06-20 | 2014-10-08 | 张婧如 | Device for recovering nitrogen during laser cutting of wood |
| 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 |
| CN106048131A (en) * | 2016-08-05 | 2016-10-26 | 中冶赛迪工程技术股份有限公司 | Converter electric precipitator system-based explosion-proof control method and device |
| 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 |
| CN108265152A (en) * | 2016-12-30 | 2018-07-10 | 北京凯德恒源科技发展有限公司 | Pneumatic steelmaking coal gas complete recovering technique and its control method based on nitrogen compensation |
| CN107421580A (en) * | 2017-05-27 | 2017-12-01 | 山西大学 | A kind of dual field air-locked type electric cleaner test device |
| 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 |
| CN111992009A (en) * | 2020-08-26 | 2020-11-27 | 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 |
| 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 |
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| CN103276139B (en) | 2015-09-16 |
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