CN203625415U - Evaporative cooling flue for steelmaking converter - Google Patents
Evaporative cooling flue for steelmaking converter Download PDFInfo
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- CN203625415U CN203625415U CN201320791522.9U CN201320791522U CN203625415U CN 203625415 U CN203625415 U CN 203625415U CN 201320791522 U CN201320791522 U CN 201320791522U CN 203625415 U CN203625415 U CN 203625415U
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- flue
- steel
- interlude
- gasification cooling
- door
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Abstract
The utility model relates to an evaporative cooling flue for a steelmaking converter. The evaporative cooling flue comprises a movable smoke hood (1), a converter mouth fixed-section flue (2), a middle section flue (3) and a tail end flue (4), wherein the converter mouth fixed-section flue (2) and the middle section flue (3) are connected through a sealing retractable connection device (5); the converter mouth fixed-section flue (2) and the middle section flue (3) are inclined after being connected with each other; the bottom of the converter mouth fixed-section flue (2) is connected with the movable smoke hood (1); the top of the middle section flue (3) is connected with the tail end flue (4); a maintenance window (3.1) in the middle section flue (3) is provided with a maintenance bin door (6), and the top of the maintenance bin door (6) is hinged with the middle section flue (3). The evaporative cooling flue is convenient to maintain and clean.
Description
Technical field
The utility model relates to a kind of gasification cooling flue for steel-making converter.
Background technology
Linz-Donawitz process is nearest more than 50 years institute's a kind of steel-smelting technologies of producing and growing up, and it does not need outer heat supplied, is the carbon that utilizes in molten iron self, closes with technical pure oxidation, produces heat, for the needs of making steel;
Oxygen, by oxygen rifle, from converter mouth top, is deep into the suitable position above of molten iron in converter, blows; In converting process, the carbide in oxide compound and the molten iron of iron produces a large amount of carbon monoxide, emits a large amount of heats simultaneously; The gas of ejection is called furnace gas, and major ingredient is carbon monoxide (86 ~ 90%) and carbonic acid gas (approximately 10%); The temperature of furnace gas in stove is at 1400 ℃ ~ 1600 ℃;
Owing to producing a large amount of coal gas of converter (carbon monoxide) in steelmaking process, generally all adopt gasification cooling flue and dust removal installation to produce steam, gas recovery, its technique is, converter gas borrows blower fan suction to enter gasification cooling flue, recovery part fume afterheat, enter the dedusting of overflow Venturi meter from top from gasification cooling flue flue gas out cooling, the path transfer Venturi meter that enters bottom after elbow separator dehydration carries out smart dedusting, gas after dedusting is dewatered by elbow separator, purified gas passes through three-way switch valve after pressurizeing by blower fan, entering gas storage holder stores,
In whole system, main device is made up of converter, gasification cooling flue and dust removal installation---and wherein, gasification cooling flue is installed on converter top, high-temperature flue gas is cooled to 800 ℃ ~ 1000 ℃, produce steam, reach the object of waste heat recovery, be also the reliable passage of gas recovery simultaneously; The Main Function of dust removal installation is by the further cooling coal gas to 70 of method ℃ of water spray ~ 80 ℃, purifies coal gas simultaneously, stores coal gas;
At fire door place, flue-gas temperature is approximately 1400 ℃ ~ 1600 ℃, and after flue is cooling, temperature out is approximately 800 ℃ ~ 1000 ℃, and flue gas enters overflow Venturi meter, and in 1/50 second, temperature is down to rapidly 70 ℃ ~ 80 ℃, removes the big particle in flue dust simultaneously; Cooled flue gas enters path transfer Venturi meter after elbow separator dehydration, and the micro-pressure-difference that path transfer Venturi meter can record according to flue fire door place is adjusted aditus laryngis cross section, keeps within the specific limits thereby control flue gas flow; Flue gas cooling and smart dedusting again in path transfer Venturi meter simultaneously; Reclaim while requiring when gas quality meets, coal gas enters gas chamber by water seal inverted valve and V-type water seal and stores;
In above-mentioned technological process, the action principle of gasification cooling flue is: high-temperature flue gas is by gasification cooling flue, and because heating surface temperature is lower, high-temperature flue gas, by the heat energy of self, is passed to heating surface cooling.Water in heating surface tube, because having absorbed the evaporation of smoke heat energy part, produces steam; Simultaneously due to water constantly circulation in heating surface tube, cooling heating surface, and make metal not overheated; Adopt gasification cooling flue, not only can reach the object of cooled flue gas, simultaneously again can production vapor recovery heat, for the production of factory with live;
Generally speaking, gasification cooling flue is made up of movable gas hood, mouth fixed section, interlude flue and flue latter end;
Wherein, movable gas hood is above the fire door of converter, be generally pipe iris type structure, movable gas hood needs easy on and off lifting, roughly equal to guarantee petticoat pipe inner and outer air pressure, both avoided escaping of flue gas to worsen flushing and casting environment, do not suck too much air and reduce the quality of gas recovery yet, therefore can be adjusted at each stage movable gas hood of blowing the gap needing, finishing blowing taps, while slagging tap, add steel scrap, hot metal charging, petticoat pipe can rise, and does not hinder converter inclining, in the time that needs are changed furnace lining, movable gas hood can be translated apart again body of heater top.Movable gas hood generally has circulation loop of one's own, and movable gas hood top is mouth fixed section flue, conventionally adopts water seal to be connected, to reach the object of sealing between movable flue and mouth fixed section;
Mouth fixed section, operating mode is relatively severe, and this section is generally pipe dividing plate form, and oxygen muzzle, charging opening are arranged in this section.The lower collecting box of mouth fixed section is generally heating surface, and periodically flame impingement lower collecting box, makes the operating mode of lower collecting box more severe;
Middle flue section, is generally oblique straight section etc., comprises all flues of flue gas ascent stage; At present large portion is pipe iris type structure;
Flue latter end is flue gas downcomer; Mainly for easy to connect with rear portion dust removal installation;
In the course of the work, especially high-temperature tail gas is with a large amount of impurity for gasification cooling flue, and these impurity can deposit at flue inwall, thereby affect its work-ing life.
Summary of the invention
The purpose of this utility model is to overcome above-mentioned deficiency, and a kind of clean gasification cooling flue for steel-making converter of regular maintenance of being convenient to is provided.
The purpose of this utility model is achieved in that a kind of gasification cooling flue for steel-making converter, described gasification cooling flue for steel-making converter includes movable gas hood, mouth fixed section flue, interlude flue and end flue, described mouth fixed section flue and interlude flue are connected by the sealing coupling device that stretches, described mouth fixed section flue is connected and retreads to setting with interlude flue, described mouth fixed section flue bottom is connected with movable gas hood, described interlude flue top is connected with end flue, on described interlude flue, have maintenance window, in this maintenance window, be provided with and safeguard door, describedly safeguard that the top of door and interlude flue are hinged.
The utility model gasification cooling flue for steel-making converter, described maintenance is provided with hinge bar on door, described hinge bar is articulated with on interlude flue, describedly safeguard that door is embedded in maintenance window, and safeguard between four sidewalls of door and the inner side-wall of maintenance window and be provided with resistant to elevated temperatures sealed strip.
The utility model gasification cooling flue for steel-making converter, is provided with a buckle on described interlude flue.
The utility model gasification cooling flue for steel-making converter, is provided with at least one pressure transmitter on the inner side-wall of described maintenance window, this pressure transmitter is connected with control module, is connected with loud speaker and pilot lamp in control module.
The utility model gasification cooling flue for steel-making converter, described pressure transmitter is connected with control module is wireless.
The utility model gasification cooling flue for steel-making converter, is provided with at least one temperature sensor near maintenance window place on described interlude flue outer side wall, and this temperature sensor is connected with control module, is connected with loud speaker and pilot lamp in control module.
The utility model gasification cooling flue for steel-making converter, described temperature sensor is connected with control module is wireless.
Compared with prior art, the beneficial effects of the utility model are:
The utility model safeguards that by arranging on interlude flue door carries out periodic cleaning, has effectively reduced the deposition impurity on flue inwall, has effectively extended the work-ing life of flue.
Accompanying drawing explanation
Fig. 1 is the structural representation of the utility model gasification cooling flue for steel-making converter.
Fig. 2 is the structural representation of safeguarding door of the utility model gasification cooling flue for steel-making converter.
Wherein:
Movable gas hood 1, mouth fixed section flue 2, interlude flue 3, maintenance window 3.1, end flue 4, the flexible coupling device 5 of sealing, safeguard door 6, buckle 7, pressure transmitter 8.
Embodiment
Referring to Fig. 1 and Fig. 2, a kind of gasification cooling flue for steel-making converter that the utility model relates to, described gasification cooling flue for steel-making converter includes movable gas hood 1, mouth fixed section flue 2, interlude flue 3 and end flue 4, described mouth fixed section flue 2 is connected by sealing flexible coupling device 5 with interlude flue 3, described mouth fixed section flue 2 is connected and retreads to setting with interlude flue 3, described mouth fixed section flue 2 bottoms are connected with movable gas hood 1, described interlude flue 3 tops are connected with end flue 4, on described interlude flue 3, have maintenance window 3.1, in this maintenance window 3.1, be provided with and safeguard door 6, describedly safeguard that the top of door 6 and interlude flue 3 are hinged, concretely, described maintenance on door 6 is provided with hinge bar, described hinge bar is articulated with on interlude flue 3, describedly safeguard that door 6 is embedded in maintenance window 3.1, and safeguard between four sidewalls of door 6 and the inner side-wall of maintenance window 3.1 and be provided with resistant to elevated temperatures sealed strip, on described interlude flue 3, be provided with a buckle 7, be used for closing and safeguard that door 6 is rear it is carried out to clamp operation, on the inner side-wall of described maintenance window 3.1, be provided with at least one pressure transmitter 8, this pressure transmitter 8 is connected with control module, in control module, be connected with loud speaker and pilot lamp, in the time that not closing, door can report to the police, prevent from working in situation that door opens, preferably, consider the severe environment of work, can adopt the mode of wireless connections, pressure transmitter 8 is connected with control module is wireless, simultaneously, also can on interlude flue 3 outer side walls, be provided with at least one temperature sensor near maintenance window 3.1 places in order to increase safety performance, this temperature sensor is connected with control module, in the time of temperature exceeding standard, illustrate that door has started work at the situation lower flue of not closing, there is high temperature to overflow from maintenance window 3.1 for this reason, now report to the police and propose,
This is set and safeguards after door 6, can open flue is carried out to removal treatment it, remove the foreign material that adhere on its inwall, extend the work-ing life of flue.
Claims (7)
1. a gasification cooling flue for steel-making converter, described gasification cooling flue for steel-making converter includes movable gas hood (1), mouth fixed section flue (2), interlude flue (3) and end flue (4), described mouth fixed section flue (2) and interlude flue (3) are connected by the sealing coupling device (5) that stretches, described mouth fixed section flue (2) is connected and retreads to setting with interlude flue (3), described mouth fixed section flue (2) bottom is connected with movable gas hood (1), described interlude flue (3) top is connected with end flue (4), it is characterized in that: on described interlude flue (3), have maintenance window (3.1), in this maintenance window (3.1), be provided with and safeguard door (6), describedly safeguard that the top of door (6) and interlude flue (3) are hinged.
2. a kind of gasification cooling flue for steel-making converter as claimed in claim 1, it is characterized in that: described maintenance on door (6) is provided with hinge bar, described hinge bar is articulated with on interlude flue (3), describedly safeguard that door (6) is embedded in maintenance window (3.1), and safeguard between four sidewalls of door (6) and the inner side-wall of maintenance window (3.1) and be provided with resistant to elevated temperatures sealed strip.
3. a kind of gasification cooling flue for steel-making converter as claimed in claim 1 or 2, is characterized in that: on described interlude flue (3), be provided with a buckle (7).
4. a kind of gasification cooling flue for steel-making converter as claimed in claim 1 or 2, it is characterized in that: on the inner side-wall of described maintenance window (3.1), be provided with at least one pressure transmitter (8), this pressure transmitter (8) is connected with control module, is connected with loud speaker and pilot lamp in control module.
5. a kind of gasification cooling flue for steel-making converter as claimed in claim 4, is characterized in that: described pressure transmitter (8) is connected with control module is wireless.
6. a kind of gasification cooling flue for steel-making converter as claimed in claim 1 or 2, it is characterized in that: on described interlude flue (3) outer side wall, locate to be provided with at least one temperature sensor near maintenance window (3.1), this temperature sensor is connected with control module, is connected with loud speaker and pilot lamp in control module.
7. a kind of gasification cooling flue for steel-making converter as claimed in claim 6, is characterized in that: described temperature sensor is connected with control module is wireless.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201320791522.9U CN203625415U (en) | 2013-12-05 | 2013-12-05 | Evaporative cooling flue for steelmaking converter |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201320791522.9U CN203625415U (en) | 2013-12-05 | 2013-12-05 | Evaporative cooling flue for steelmaking converter |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| CN203625415U true CN203625415U (en) | 2014-06-04 |
Family
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Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN201320791522.9U Expired - Fee Related CN203625415U (en) | 2013-12-05 | 2013-12-05 | Evaporative cooling flue for steelmaking converter |
Country Status (1)
| Country | Link |
|---|---|
| CN (1) | CN203625415U (en) |
Cited By (2)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN104033916A (en) * | 2014-06-10 | 2014-09-10 | 王敏 | Testing water-cooled smoke hood |
| CN105986057A (en) * | 2015-01-29 | 2016-10-05 | 江苏永钢集团有限公司 | Replacement method of heated pipe in evaporative cooling flue |
-
2013
- 2013-12-05 CN CN201320791522.9U patent/CN203625415U/en not_active Expired - Fee Related
Cited By (4)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN104033916A (en) * | 2014-06-10 | 2014-09-10 | 王敏 | Testing water-cooled smoke hood |
| CN104033916B (en) * | 2014-06-10 | 2016-08-24 | 江苏俊云机械科技有限公司 | Water-cooled petticoat pipe is used in test |
| CN105986057A (en) * | 2015-01-29 | 2016-10-05 | 江苏永钢集团有限公司 | Replacement method of heated pipe in evaporative cooling flue |
| CN105986057B (en) * | 2015-01-29 | 2017-10-20 | 江苏永钢集团有限公司 | A kind of gasification cooling flue heat pipe replacing options |
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Legal Events
| Date | Code | Title | Description |
|---|---|---|---|
| C14 | Grant of patent or utility model | ||
| GR01 | Patent grant | ||
| C56 | Change in the name or address of the patentee | ||
| CP01 | Change in the name or title of a patent holder |
Address after: Hua Shi Zhen Shu new road 214421 Jiangyin city in Jiangsu province Wuxi City No. 5 Patentee after: WUXI XIANGLONG GLOBAL TECHNOLOGY CO.,LTD. Address before: Hua Shi Zhen Shu new road 214421 Jiangyin city in Jiangsu province Wuxi City No. 5 Patentee before: JIANGYIN HAILU METALLURGY EQUIPMENT Co.,Ltd. |
|
| CF01 | Termination of patent right due to non-payment of annual fee |
Granted publication date: 20140604 Termination date: 20211205 |
|
| CF01 | Termination of patent right due to non-payment of annual fee |