CN103981325B - Blowing and drawing type converter secondary flue gas capturing device - Google Patents
Blowing and drawing type converter secondary flue gas capturing device Download PDFInfo
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- CN103981325B CN103981325B CN201410187669.6A CN201410187669A CN103981325B CN 103981325 B CN103981325 B CN 103981325B CN 201410187669 A CN201410187669 A CN 201410187669A CN 103981325 B CN103981325 B CN 103981325B
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- flue gas
- blower fan
- trap cover
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Abstract
The present invention relates to a kind of blowing and drawing type converter secondary flue gas capturing device, it comprises and is separately positioned on steel, the suction and blowing device of slag transport passage both sides and the fume trap cover that is arranged in converter, described fume trap cover is communicated with outside cleaning shaft by induced exhaust, described fume trap cover, described suction and blowing device, described converter, is arranged on the space that iron ladle above described converter and anti-smoke-box form an opposing seal; It is indoor that described converter is placed in described Smoke prevention; Described suction and blowing device comprises the blower fan be connected with motor, and the blast inlet of described blower fan is communicated with air-returning device, and the air outlet of described blower fan is connected with airduct, and described airduct is provided with the corresponding exhaust apparatus arranged of multiple and described air-returning device.Beneficial effect of the present invention is: 1, structure is simple, convenient realizes.2, the wild air quantity entering the fume trap cover be arranged on above converter can be reduced, be conducive to fume trap cover converter secondary flue gas not in a large number before diffusion by efficiently, the catching of low consumption, energy-conserving and environment-protective.
Description
Technical field
The present invention relates to iron and steel enterprise's steel-making converter secondary flue gas purification facility, particularly relate to a kind of blowing and drawing type converter secondary flue gas capturing device.
Background technology
As everyone knows, protection of the environment is a fundamental state policy that must adhere to for a long time, and under the brute force promotion of national policy and the supervision of public opinion, each iron and steel enterprise all has higher requirement to plant area's environmental protection.
Steel-making converter secondary flue gas capturing device traditional at present can not efficiently, low consumption catch the pollution that the flue gas produced in converter production process causes steelshop and atmospheric environment to a certain extent, also consumes a large amount of energy simultaneously.
In order to improve collection efficiency, generally adopt the method improving system dust removing air quantity at present both at home and abroad, although the method improves the collection efficiency of converter secondary flue gas to a certain extent, but must expand for improving the corresponding dust removal installation capacity of systematic air flow, investment of equipment is not only caused to increase, working cost also increases greatly, does not meet the related request that national energy-saving reduces discharging.At present, how efficiently, the trapping converter secondary flue gas of low consumption has become a domestic and international ubiquitous difficult problem.
Summary of the invention
Technical problem to be solved by this invention is to provide a kind of blowing and drawing type converter secondary flue gas capturing device of efficient, low consumption.
The technical solution adopted in the present invention is: a kind of blowing and drawing type converter secondary flue gas capturing device, it comprises and is separately positioned on steel, the suction and blowing device of slag transport passage both sides and the fume trap cover that is arranged in converter, described fume trap cover is communicated with outside cleaning shaft by induced exhaust, described fume trap cover, described suction and blowing device, described converter, is arranged on the space that iron ladle above described converter and anti-smoke-box form an opposing seal; It is indoor that described converter is placed in described Smoke prevention; Described suction and blowing device comprises the blower fan be connected with motor, and the blast inlet of described blower fan is communicated with air-returning device, and the air outlet of described blower fan is connected with airduct, and described airduct is provided with the corresponding exhaust apparatus arranged of multiple and described air-returning device.
Further, described fume trap cover comprises front panel, top board and rear panel, and described front panel, top board and rear panel are connected to form the hollow cell body below with opening in turn, and the two ends of hollow cell body are all connected with described induced exhaust.
Further, the size of described front panel and rear panel can identical also can not be identical, such as front panel is identical with the width of rear panel, but the height of rear panel is higher than the height of front panel.
Further, described opening is just to the dispersal direction of described secondary flue gas.
Further, described airduct is fixedly connected with by the wall of suspension bracket with steel, slag transport passage.
Further, described motor is fixedly connected with by the wall of stationary installation with steel, slag transport passage with described blower fan.
Further, described air-returning device is scrak type return air inlet.
Further, described exhaust apparatus is nozzle.
Further, the air quantity of described blower fan is controlled by the rotating speed of motor; Described motor adopts frequency control motor; Described outside cleaning shaft is connected with extractor fan.
A set of suction and blowing device is provided with respectively in steel, slag transport passage both sides, described suction and blowing device is made up of blower fan, motor, airduct, nozzle, scrak type return air inlet, stationary installation, suspension bracket, it can form twice air curtain, effective adjustment, reduce the air quantity entering anti-smoke-box from steel, slag transport passage, and form a relative airtight space with steel, slag transport passage, anti-smoke-box, thus reduce to enter the wild air quantity of the fume trap cover be arranged on above converter, this be conducive to fume trap cover converter secondary flue gas not in a large number before diffusion by efficiently, the catching of low consumption.
The air quantity of blower fan can be regulated by the rotating speed of motor and also can regulate by other means, forms a rational air intake air current composition and variable shock resistance.
Find through a large amount of research and practices, the air quantity entering anti-smoke-box from steel, slag transport passage is very large, the collection efficiency of what this was serious reduce fume trap cover.In steel, slag transport passage both sides, a set of suction and blowing device is set respectively, it can form twice air curtain, effective adjustment, reduce the air quantity entering anti-smoke-box from steel, slag transport passage, and form a relative airtight space with steel, slag transport passage, anti-smoke-box, thus reduce to enter the wild air quantity of the fume trap cover be arranged on above converter, this be conducive to fume trap cover converter secondary flue gas not in a large number before diffusion by efficiently, the catching of low consumption.
Beneficial effect of the present invention is: 1, structure is simple, convenient realizes.2, the wild air quantity entering the fume trap cover be arranged on above converter can be reduced, be conducive to fume trap cover converter secondary flue gas not in a large number before diffusion by efficiently, the catching of low consumption, energy-conserving and environment-protective.
Accompanying drawing explanation
Fig. 1 is the structural representation of one embodiment of the invention.
Fig. 2 is the A-A sectional view of Fig. 1.
Fig. 3 is the B-B sectional view of Fig. 1.
In figure: 1, steel, slag transport passage, 2, blower fan, 3, airduct, 4, nozzle, 5, scrak type return air inlet, 6, stationary installation, 7, suspension bracket, 8, fume trap cover, 8-1, front panel, 8-2, top board, 8-3, rear panel, 9, anti-smoke-box, 10, induced exhaust, 11, crane, 12, iron ladle, 13, converter.
Embodiment
Embodiments of the invention are further illustrated below in conjunction with accompanying drawing.
See Fig. 1-Fig. 3, a kind of blowing and drawing type converter secondary flue gas capturing device, it comprises and is separately positioned on steel, the suction and blowing device of slag transport passage 1 both sides and the fume trap cover 8 that is arranged in converter 13, described fume trap cover 8 is communicated with outside cleaning shaft by induced exhaust 10, and described outside cleaning shaft is connected with extractor fan; Described fume trap cover 8, described suction and blowing device, described converter 13, be arranged on the space that iron ladle above described converter 13 12 and anti-smoke-box 9 form an opposing seal; Described converter 13 is placed in described anti-smoke-box 9; Described suction and blowing device comprises the blower fan 2 be connected with motor, and the blast inlet of described blower fan 2 is communicated with scrak type return air inlet 5, and the air outlet of described blower fan 2 is connected with airduct 3, and described airduct 3 is provided with the corresponding nozzle 4 arranged of multiple and described scrak type return air inlet 5; Described airduct 3 is fixedly connected with by the wall of suspension bracket 7 with steel, slag transport passage 1; Described motor is fixedly connected with by the wall of stationary installation 6 with steel, slag transport passage 1 with described blower fan 2.
In the present embodiment, described fume trap cover 8 comprises front panel 8-1, top board 8-2 and rear panel 8-3, described front panel 8-1, top board 8-2 and rear panel 8-3 are connected to form the hollow cell body below with opening in turn, and the two ends of hollow cell body are all connected with described induced exhaust 10.
Better trap effect to reach, described front panel 8-1 and rear panel 8-3 is measure-alike, and described opening is just to the dispersal direction of described secondary flue gas.
Better trap effect to reach, the air quantity of described blower fan 2 is controlled by the rotating speed of motor; Described motor adopts frequency control motor.
When preparing hot metal charging, blower fan 2, motor are in the state of running up.
When the work of converter 13 hot metal charging starts, converter 13 tilts to state in Fig. 1, iron ladle 12 under the effect of crane 11 near converter 13 start down molten iron, by flue gases a large amount of for generation in this process.The fume trap cover 8 be now arranged on above converter 13 is started working exhausting, now suction and blowing device can form twice air curtain, effective adjustment, reduce the air quantity entering anti-smoke-box 9 from steel, slag transport passage 1, form a rational air intake air current composition and shock resistance, and form a relative airtight space with steel, slag transport passage 1, anti-smoke-box 9, the wild air quantity entering fume trap cover 8 can be reduced like this, can converter secondary flue gas not in a large number before diffusion by efficiently, the catching of low consumption.
In the present invention, arranging of described suction and blowing device does not almost affect converter producing.
When converter secondary fume tolerance reduce or when not having, blower fan 2, motor are in low-speed running state, save energy consumption.
Should be understood that above-described embodiment is only not used in the scope of restriction this patent for illustration of this patent.In addition should understand, after the content of having read this patent instruction, those skilled in the art can make various changes or modifications this patent, such as, the position of suction and blowing device and quantity can adjust, and nozzle 4 can change other forms of exhaust apparatus into, and the quantity of nozzle 4 can adjust, scrak type return air inlet 5 can change other forms of air-returning device into, and these equivalent form of values fall within the application's appended claims limited range equally.
The foregoing is only preferred embodiment of the present invention, not in order to limit the present invention, within the spirit and principles in the present invention all, any amendment done, equivalent replacement, improvement etc., all should be included within protection scope of the present invention.
Claims (4)
1. a blowing and drawing type converter secondary flue gas capturing device, it is characterized in that: it comprises and is separately positioned on steel, the suction and blowing device of slag transport passage both sides and the fume trap cover that is arranged on above converter, described fume trap cover is communicated with outside cleaning shaft by induced exhaust, described fume trap cover, described suction and blowing device, described converter, is arranged on the space that iron ladle above described converter and anti-smoke-box form an opposing seal; It is indoor that described converter is placed in described Smoke prevention; Described suction and blowing device comprises the blower fan be connected with motor, and the blast inlet of described blower fan is communicated with air-returning device, and the air outlet of described blower fan is connected with airduct, and described airduct is provided with the corresponding exhaust apparatus arranged of multiple and described air-returning device;
Described fume trap cover draws together front panel, top board and rear panel, and front panel, top board and rear panel are connected to form the hollow cell body below with opening in turn, and the two ends of hollow cell body are all connected with induced exhaust; Front panel is identical with the width of rear panel, and the height of rear panel is higher than the height of front panel;
Described air-returning device is scrak type return air inlet;
Described exhaust apparatus is nozzle;
The air quantity of described blower fan is controlled by the rotating speed of motor.
2. blowing and drawing type converter secondary flue gas capturing device as claimed in claim 1, is characterized in that: described opening is just to the dispersal direction of described secondary flue gas.
3. blowing and drawing type converter secondary flue gas capturing device as claimed in claim 1, is characterized in that: described airduct is fixedly connected with by the wall of suspension bracket with steel, slag transport passage.
4. blowing and drawing type converter secondary flue gas capturing device as claimed in claim 1, is characterized in that: described motor is fixedly connected with by the wall of stationary installation with steel, slag transport passage with described blower fan.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201410187669.6A CN103981325B (en) | 2014-05-06 | 2014-05-06 | Blowing and drawing type converter secondary flue gas capturing device |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201410187669.6A CN103981325B (en) | 2014-05-06 | 2014-05-06 | Blowing and drawing type converter secondary flue gas capturing device |
Publications (2)
| Publication Number | Publication Date |
|---|---|
| CN103981325A CN103981325A (en) | 2014-08-13 |
| CN103981325B true CN103981325B (en) | 2015-11-11 |
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| Application Number | Title | Priority Date | Filing Date |
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| CN201410187669.6A Active CN103981325B (en) | 2014-05-06 | 2014-05-06 | Blowing and drawing type converter secondary flue gas capturing device |
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Families Citing this family (2)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN106824964A (en) * | 2017-03-20 | 2017-06-13 | 威尔登环保设备（长沙）有限公司 | Blowing and drawing type dust pelletizing system |
| CN113664013B (en) * | 2021-09-28 | 2022-11-18 | 机械工业第六设计研究院有限公司 | Sand box flue gas trapping treatment method |
Citations (4)
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|---|---|---|---|---|
| CN201495239U (en) * | 2009-08-26 | 2010-06-02 | 中冶赛迪工程技术股份有限公司 | Dust cover on blast furnace taphole. |
| CN202902886U (en) * | 2012-10-16 | 2013-04-24 | 无锡东雄重型电炉有限公司 | Electric-arc furnace roof-type circumfluence shade and smoke curtain wall combination dust-collection device |
| CN203128610U (en) * | 2013-01-25 | 2013-08-14 | 中冶南方工程技术有限公司 | Air-curtain dust removal device for secondary flue gas of converter |
| CN203923255U (en) * | 2014-05-06 | 2014-11-05 | 中冶南方工程技术有限公司 | Novel blowing and drawing type converter secondary flue gas capturing device |
-
2014
- 2014-05-06 CN CN201410187669.6A patent/CN103981325B/en active Active
Patent Citations (4)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN201495239U (en) * | 2009-08-26 | 2010-06-02 | 中冶赛迪工程技术股份有限公司 | Dust cover on blast furnace taphole. |
| CN202902886U (en) * | 2012-10-16 | 2013-04-24 | 无锡东雄重型电炉有限公司 | Electric-arc furnace roof-type circumfluence shade and smoke curtain wall combination dust-collection device |
| CN203128610U (en) * | 2013-01-25 | 2013-08-14 | 中冶南方工程技术有限公司 | Air-curtain dust removal device for secondary flue gas of converter |
| CN203923255U (en) * | 2014-05-06 | 2014-11-05 | 中冶南方工程技术有限公司 | Novel blowing and drawing type converter secondary flue gas capturing device |
Non-Patent Citations (1)
| Title |
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| "转炉二次除尘门型罩烟尘捕集的数值模拟";赵丹丹 等;《山西建筑》;20130430;第39卷(第12期);第186页 * |
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| CN103981325A (en) | 2014-08-13 |
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