CN201268691Y - Automatic explosion suppression apparatus of converter gas dry cleaning apparatus - Google Patents
Automatic explosion suppression apparatus of converter gas dry cleaning apparatus Download PDFInfo
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- CN201268691Y CN201268691Y CNU2008201098492U CN200820109849U CN201268691Y CN 201268691 Y CN201268691 Y CN 201268691Y CN U2008201098492 U CNU2008201098492 U CN U2008201098492U CN 200820109849 U CN200820109849 U CN 200820109849U CN 201268691 Y CN201268691 Y CN 201268691Y
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Abstract
The utility model relates to an automatic explosion inhibitor of revolving furnace coal gas dry purifiers, which comprises a nitrogen inlet pipe, an electromagnetic cut-off valve, a pipeline filter, a flowmeter, a cut-off ball valve, a flow regulation valve, a nitrogen circular pipe, a nitrogen branch pipe and a nitrogen nozzle, wherein the electromagnetic cut-off valve, the pipeline filter, the flowmeter, the cut-off ball valve, the flow regulation valve and the nitrogen pipeline are connected by flanges, and the nitrogen nozzle and the nitrogen branch pipe are connected by an internal thread. The nitrogen inlet pipe is connected out from a nitrogen supply pipe and sequentially passes through the electromagnetic cut-off valve, the pipeline filter, the flowmeter, the flow regulation valve, the nitrogen circular pipe and the nitrogen branch pipe to enter a technical pipeline of a static dust remover by the nitrogen nozzle. The coal gas can be effectively prevented from generating explosion hazards on the static dust remover to guarantee the coal gas to safely and reliably pass through the static dust remover.
Description
Technical field
The utility model belongs to coal gas of steel-smelting revolving furnace dedusting technology field, a kind of automatic explosion suppression device of converter gas dry method treating plant particularly is provided, has been applicable to the security device of the automatic inhibition gaseous detonation of coal gas of converter dry gas cleaning processing unit (electrostatic precipitator).
Background technology
During iron and steel metallurgy enterprise was produced, converter produced a large amount of coal gas in smelting process, after handling through treating plant, can be used as the high quality gas fuel of iron and steel enterprise.The coal gas of converter treatment system comprises converter coal gas purification and coal-gas recovering.At present, converter coal gas purification technology has dry type and two kinds of technologies of wet dust removal.Coal gas of converter dry gas cleaning technology and wet dust removal relatively have water saving, economize on electricity, reclaim the coal gas heat reaches the high technical superiority of efficiency of dust collection more, be specially adapted to the area of water resources shortage, being the developing direction of converter current gas purification, is that national industrial policies are widelyd popularize coal gas of converter dry gas cleaning technology.
The technical process of coal gas of converter dry gas cleaning is as follows: the coal gas that steel-making produces is introduced into after through the flue cooling and carries out thick dedusting and cooling, modifier treatment in the wet cooling tower in the steel-making power house; gas temperature is reduced to about 180 ℃ by 800 ℃～1000 ℃; then through after removing the macrobead dust; be delivered in the round shape dry electric precipitation device by converter gas pipeline and carry out smart dedusting, make dust content of gas to 10mg/Nm
3Below, after coal gas after the purification pressurizes through dedusting fan, the coal gas that does not meet recovering condition diffuses the side cup valve through switching station and enters and diffuse after diffusing the chimney burning, the coal gas that meets recovering condition enters gas cooler through switching station recovery side cup valve and further cools off, the coal gas of converter temperature is reduced to 72 ℃ by 180 ℃, finally enters the RECOVERY OF CONVERTER GAS house steward.Circular dry electric precipitation device with gas ionization, is passed to dust granule to electric charge under the effect of high-voltage electric field, dust granule is separated from air-flow, and it is deposited on the receiving electrode, reaches the purpose that purifies coal gas.Because discontinuity, the gas composition of RECOVERY OF CONVERTER GAS change greatly, particularly moisture content increases in the flue gas in summer, and the concentration of explosion gas reaches in the gaseous detonation scope in the blind area or the vortex cavity of electrostatic precipitator in the coal gas, causes the blast of electrostatic precipitator.For solving the electrostatic precipitator damage that gaseous detonation causes, explosion venting valve is set respectively at the coal gas import and export cone place of electrostatic precipitator.When electrostatic precipitator was blasted, explosion venting valve was opened rapidly, prevented from that gaseous tension is too high in the electrostatic precipitator electrostatic precipitator is destroyed.Because it is strong that explosion venting valve is opened randomness, cause blast easily, near personnel that pass through may impacting or object, form the secondary injury accident, simultaneously, the gaseous detonation shockwave will influence the relative position of the inner dedusting member of electrostatic precipitator, cause efficiency of dust collection to descend, the serious stop production to overhaul of also wanting influences the ordinary production of converter.
Summary of the invention
The purpose of this utility model is to provide a kind of automatic explosion suppression device of converter gas dry method treating plant, prevent that gas from forming explosion environment in electrostatic precipitator, thereby solved the efficiency of dust collection decline that gas is introduced in the electrostatic precipitator blast, influenced the problem of the ordinary production of converter.
The utility model comprises: nitrogen inlet tube, electromagnetic shut-off valve, line strainer, under meter measuring device, cut-out ball valve, flow control valve, nitrogen endless tube, nitrogen arm and nitrogen nozzle.Electromagnetic shut-off valve, line strainer, under meter measuring device, cut-out ball valve, flow control valve adopt flange to be connected with nitrogen pipeline, and the nitrogen nozzle adopts internal thread to be connected with the nitrogen arm.Nitrogen is drawn from supply pipe, pass through nitrogen inlet tube 1, electromagnetic shut-off valve 2, line strainer 3 successively, under meter measuring device 4, cut-out ball valve 5, flow control valve 6, nitrogen endless tube 7, nitrogen arm 8, nitrogen nozzle 9 enter in the electrostatic precipitator process pipe by the nitrogen nozzle at last.The nitrogen that sprays into by after the flow deflector rectification of electrostatic precipitator ingress, arrives coal gas blind area and vortex cavity in the electrostatic precipitator with coal gas, mixes with explosion gas, thereby has changed explosion gases concentration, has reached datonation-inhibition requirement.
The utility model device is to feed rare gas element in explosion gas, changes the concentration of explosion gases, occurs blast in the electrostatic precipitator thereby eliminate, and guarantees gas safety, passes through electrostatic precipitator reliably.Described rare gas element is a nitrogen.
The continuous technical progress of coal gas of converter dry gas cleaning technology brings favorable economic benefit to Steel Plant, opens but introduce the electrostatic precipitator explosion venting valve for above-mentioned reasons, and influence safety and production have hindered this The Application of Technology and popularization.The utility model technology provides the automatic explosion suppression device that a kind of effect is remarkable, running cost is low and simple to operate.Be primarily characterized in that nitrogen to spray into by pipeline in the connecting tube of electrostatic precipitator entrance guiding plate, then through laggard gas blind area and the vortex cavity of going in the electrostatic precipitator of the further rectification of electrostatic precipitator flow deflector as datonation-inhibition medium.Nitrogen is rare gas element, can change the concentration of explosion gas in blind area and the vortex cavity flue gas, make fiery gas bulk concentration in the coal gas outside explosive range, secondly, explosion gas in blind area and the vortex cavity is dispersed the electrostatic precipitator center, guarantee that coal gas statuary column plug equally flows through exhaust gases passes in the fly-ash separator, thereby suppressed the blast of gas.
Description of drawings:
Fig. 1 is the structural map of the utility model device.Wherein, nitrogen inlet tube 1, electromagnetic shut-off valve 2, line strainer 3, under meter measuring device 4, cut-out ball valve 5, flow control valve 6, nitrogen endless tube 7, nitrogen arm 8, nitrogen nozzle 9.
Embodiment
The utility model is described in further detail below in conjunction with accompanying drawing
Found out by accompanying drawing: nitrogen picks out from the nitrogen supply (NS) pipe, pass through electromagnetic shut-off valve, line strainer, under meter measuring device, flow control valve successively, import a plurality of nitrogen arms by the nitrogen endless tube again, enter in the electrostatic precipitator process pipe by the nitrogen nozzle at last.The diameter of nitrogen inlet tube 1 decreases definite according to required introducing nitrogen amount and pipeline resistance; Electromagnetic shut-off valve 2 systems are the shut-off device of system, and its open and close signal comes from the schedule of operation of steel-making converter; Line strainer 3 is that the particulate matter in the nitrogen pipeline is removed, and the protection nozzle does not stop up; Under meter measuring device 4 is instantaneous and the cumulative measurement nitrogen flow; Cut off totally three of ball valves 5, be the maintenance trip valve of flow control valve 6.Flow control valve 6 is according to processing requirement, determines nitrogen flow; Nitrogen endless tube 7 guarantees to enter the nitrogen uniform distribution of nitrogen arm 8; Nitrogen nozzle 9 is that nitrogen is filled in the process pipe uniformly, guarantees that the coal gas in nitrogen and the electrostatic precipitator mixes in blind area and vortex cavity.
Claims (2)
1. the automatic explosion suppression device of a converter gas dry method treating plant, it is characterized in that: this device is by nitrogen inlet tube (1), electromagnetic shut-off valve (2), line strainer (3), under meter measuring device (4), cut-out ball valve (5), flow control valve (6), nitrogen endless tube (7), nitrogen arm (8), nitrogen nozzle (9) are formed; Electromagnetic shut-off valve, line strainer, under meter measuring device, cut-out ball valve, flow control valve adopt flange to be connected with nitrogen pipeline, and the nitrogen nozzle adopts internal thread to be connected with the nitrogen arm.
2. as the automatic explosion suppression device of claims 1 described converter gas dry method treating plant, it is characterized in that: nitrogen is drawn from supply pipe, pass through nitrogen inlet tube (1), electromagnetic shut-off valve (2), line strainer (3) successively, under meter measuring device (4), cut-out ball valve (5), flow control valve (6), nitrogen endless tube (7), nitrogen arm (8), nitrogen nozzle (9) enter in the electrostatic precipitator process pipe by the nitrogen nozzle at last.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CNU2008201098492U CN201268691Y (en) | 2008-08-20 | 2008-08-20 | Automatic explosion suppression apparatus of converter gas dry cleaning apparatus |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CNU2008201098492U CN201268691Y (en) | 2008-08-20 | 2008-08-20 | Automatic explosion suppression apparatus of converter gas dry cleaning apparatus |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| CN201268691Y true CN201268691Y (en) | 2009-07-08 |
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Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CNU2008201098492U Expired - Lifetime CN201268691Y (en) | 2008-08-20 | 2008-08-20 | Automatic explosion suppression apparatus of converter gas dry cleaning apparatus |
Country Status (1)
| Country | Link |
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| CN (1) | CN201268691Y (en) |
Cited By (4)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN101892343A (en) * | 2010-07-30 | 2010-11-24 | 中冶南方工程技术有限公司 | Converter gas dry-dedusting system and using method thereof |
| CN101619375B (en) * | 2009-08-07 | 2011-06-01 | 山西太钢不锈钢股份有限公司 | Method for preventing electric precipitation detonation discharge of top and bottom blown converter |
| RU2456500C1 (en) * | 2011-06-24 | 2012-07-20 | Андрей Юрьевич Беляев | Power supply system for hydrate formation inhibitor in pipeline |
| RU2689754C1 (en) * | 2016-01-08 | 2019-05-28 | ЭКОЛАБ ЮЭсЭй ИНК. | Multifunctional product able to remove hydrogen sulphide impurities and inhibit a formation of hydrates |
-
2008
- 2008-08-20 CN CNU2008201098492U patent/CN201268691Y/en not_active Expired - Lifetime
Cited By (4)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN101619375B (en) * | 2009-08-07 | 2011-06-01 | 山西太钢不锈钢股份有限公司 | Method for preventing electric precipitation detonation discharge of top and bottom blown converter |
| CN101892343A (en) * | 2010-07-30 | 2010-11-24 | 中冶南方工程技术有限公司 | Converter gas dry-dedusting system and using method thereof |
| RU2456500C1 (en) * | 2011-06-24 | 2012-07-20 | Андрей Юрьевич Беляев | Power supply system for hydrate formation inhibitor in pipeline |
| RU2689754C1 (en) * | 2016-01-08 | 2019-05-28 | ЭКОЛАБ ЮЭсЭй ИНК. | Multifunctional product able to remove hydrogen sulphide impurities and inhibit a formation of hydrates |
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Legal Events
| Date | Code | Title | Description |
|---|---|---|---|
| C14 | Grant of patent or utility model | ||
| GR01 | Patent grant | ||
| CX01 | Expiry of patent term |
Granted publication date: 20090708 |
|
| CX01 | Expiry of patent term |