CN104357612B - Air-casing is utilized to prevent the fire door flue of slagging scorification - Google Patents
Air-casing is utilized to prevent the fire door flue of slagging scorification Download PDFInfo
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- CN104357612B CN104357612B CN201410637895.XA CN201410637895A CN104357612B CN 104357612 B CN104357612 B CN 104357612B CN 201410637895 A CN201410637895 A CN 201410637895A CN 104357612 B CN104357612 B CN 104357612B
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- fire door
- flue
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- curved segment
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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
- Y02P10/25—Process efficiency
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Abstract
The invention discloses the fire door flue utilizing air-casing to prevent slagging scorification, including: the fire door flue formed by fire door vertical section flue and fire door oblique curved segment flue, fire door vertical section flue is evenly distributed with some spouts and stretches into the first jet pipe of fire door vertical section flue, it is evenly distributed with some spouts on fire door oblique curved segment flue at fire door oblique curved segment flue gas stream windward side and stretches into the second jet pipe of fire door oblique curved segment flue, all first jet pipes and the second jet pipe are connected with vapour gas house steward by connecting line respectively simultaneously, vapour gas house steward is connected with steam pipe and nitrogen tube simultaneously, steam pipe is provided with the first valve that can open or close steam pipe, nitrogen tube is provided with the second valve that can open or close nitrogen tube, steam pipe is connected with steamdrum, nitrogen tube is connected with nitrogen storage tank.The present invention has the advantage that can prevent flue inner wall slagging scorification.
Description
Technical field
The present invention relates to the use of air-casing and prevent the fire door flue of slagging scorification.
Background technology
In steel-making industry, the fire door flue used at present includes fire door vertical section flue and fire door oblique curved segment flue, after the flue gas produced during the bessemerizing air inlet from fire door vertical section flue lower end enters fire door flue and passes upward through fire door oblique curved segment flue, then enter dust pelletizing system from the gas outlet of fire door oblique curved segment flue.The shortcoming of this fire door flue is: owing to converter contains a large amount of impurity in converting process produces flue gas, after flue gas is by fire door vertical section flue and fire door oblique curved segment flue, a large amount of impurity in flue gas easily stick to fire door vertical section flue inner wall, and in the fire door oblique curved segment flue inner wall (i.e. fire door oblique curved segment flue gas stream windward side) that converter mouth upwards faces, float on simultaneously the slag of molten steel surface under bessemerizing the effect of upwards thermal current of generation the most easily splash in fire door vertical section flue inner wall and fire door oblique curved segment flue gas stream windward side, these slags and flue gas impurity adhere to easily slagging scorification after fire door flue inner wall, not only greatly reduce the service life of fire door flue, hidden danger has been buried for safety in production, and labor intensity that workman processes slagging scorification is big.
Summary of the invention
It is an object of the invention to provide a kind of air-casing that utilizes that can prevent flue inner wall slagging scorification and prevent the fire door flue of slagging scorification.
nullFor achieving the above object，Present invention employs following technical scheme: the described air-casing that utilizes prevents the fire door flue of slagging scorification，Including: the fire door flue formed by fire door vertical section flue and fire door oblique curved segment flue，Fire door vertical section flue is evenly distributed with some spouts and stretches into the first jet pipe of fire door vertical section flue，It is evenly distributed with some spouts on fire door oblique curved segment flue at fire door oblique curved segment flue gas stream windward side and stretches into the second jet pipe of fire door oblique curved segment flue，All first jet pipes and the second jet pipe are connected with vapour gas house steward by connecting line respectively simultaneously，Vapour gas house steward is connected with steam pipe and nitrogen tube simultaneously，Steam pipe is provided with the first valve that can open or close steam pipe，Nitrogen tube is provided with the second valve that can open or close nitrogen tube，Steam pipe is connected with steamdrum，Nitrogen tube is connected with nitrogen storage tank.
Further, the aforesaid fire door flue utilizing air-casing to prevent slagging scorification, wherein: interlaced distribution form some row the first jet pipe group between described first jet pipe；Each column the first jet pipe group is connected with a first throttle straight tube simultaneously, and all first throttle straight tubes are connected with the first endless tube simultaneously, and the first endless tube is connected with vapour gas house steward by the first connecting tube.
Further, the aforesaid fire door flue utilizing air-casing to prevent slagging scorification, wherein: interlaced distribution form some row the second jet pipe group between described second jet pipe；Each column the second jet pipe group is connected with one second throttling straight tube simultaneously, and all second throttling straight tubes are connected with the second endless tube simultaneously, and the second endless tube is connected with vapour gas house steward by the second connecting tube.
By the enforcement of technique scheme, the present invention has can prevent flue inner wall slagging scorification, can extend the advantage that the service life of fire door flue, production and application safety are high.
Accompanying drawing explanation
Fig. 1 is the structural representation of the fire door flue utilizing air-casing to prevent slagging scorification of the present invention.
Detailed description of the invention
The invention will be further described with specific embodiment below in conjunction with the accompanying drawings.
nullAs shown in Figure 1，The described air-casing that utilizes prevents the fire door flue of slagging scorification，Including: the fire door flue formed by fire door vertical section flue 1 and fire door oblique curved segment flue 2，Fire door vertical section flue 1 is evenly distributed with some spouts and stretches into the first jet pipe 3 of fire door vertical section flue 1，It is evenly distributed with some spouts on fire door oblique curved segment flue 2 at fire door oblique curved segment flue gas stream windward side and stretches into the second jet pipe 4 of fire door oblique curved segment flue，All first jet pipes 3 and the second jet pipe 4 are connected with vapour gas house steward 5 by connecting line respectively simultaneously，Vapour gas house steward 5 is connected with steam pipe 6 and nitrogen tube 7 simultaneously，Steam pipe 6 is provided with the first valve 8 that can open or close steam pipe 6，Nitrogen tube 7 is provided with the second valve 9 that can open or close nitrogen tube 7，Steam pipe 6 is connected with steamdrum 10，Nitrogen tube 7 is connected with nitrogen storage tank 11；In the present embodiment, interlaced distribution form some row the first jet pipe group between described first jet pipe 3；Each column the first jet pipe group is connected with a first throttle straight tube 12 simultaneously, all first throttle straight tubes 12 are connected with the first endless tube 13 simultaneously, first endless tube 13 is connected with vapour gas house steward 5 by the first connecting tube 14, and this pipeline distributed architecture is simple, convenient to install and maintain；In the present embodiment, interlaced distribution form some row the second jet pipe group between described second jet pipe 4；Each column the second jet pipe group is connected with one second throttling straight tube 15 simultaneously, all second throttling straight tubes 15 are connected with the second endless tube 16 simultaneously, second endless tube 16 is connected with vapour gas house steward 5 by the second connecting tube 17, and this pipeline distributed architecture is simple, convenient to install and maintain；
The operation principle of the present invention is as follows: before bessemerizing, open the first valve 8 on steam pipe 6, the steam in steamdrum 10 is made to enter vapour gas house steward 5 by steam pipe 6, open the second valve 9 in nitrogen tube 7 simultaneously, the nitrogen in nitrogen storage tank 11 is made to enter vapour gas house steward 5 by nitrogen tube 7, steam and nitrogen can be mixed to form vapour oxygen mixture after simultaneously entering vapour gas house steward 5, vapour oxygen mixture can be successively along the first connecting tube 14, first endless tube 13, first throttle straight tube 12 enters each first jet pipe 3, spout from the first jet pipe 3 sprays into fire door vertical section flue 1 again, the vapour oxygen mixture of all first jet pipe 3 spout ejections can form air-casing on fire door vertical section flue 1 inwall；Vapour oxygen mixture also can enter each second jet pipe 4 through second connecting tube the 17, second endless tube the 16, second throttling straight tube 15 successively simultaneously, spout from the second jet pipe 4 sprays into fire door oblique curved segment flue 2 again, and the vapour oxygen mixture of all second jet pipe 4 spout ejections can form air-casing in fire door oblique curved segment flue gas stream windward side；nullBy vapour oxygen mixture shape air-casing fire door flue inner wall suitably can not only be cooled down，Fire door flue is avoided to be in all the time under the bad working environments of high temperature，And then extend the service life of fire door flue，And the gas flow rate of the air-casing formed by vapour oxygen mixture is fast，So during bessemerizing，When sweep of gases fire door vertical section flue 1 inwall containing a large amount of impurity and fire door oblique curved segment flue gas stream windward side，Flue gas impurity can be stopped without sticking on fire door vertical section flue 1 inwall and fire door oblique curved segment flue gas stream windward side by air-casing，Float on the slag of molten steel surface under bessemerizing the effect of upwards thermal current of generation during upwards splash simultaneously，Slag also can be stopped without sticking on fire door vertical section flue 1 inwall and fire door oblique curved segment flue gas stream windward side by air-casing，Thus be prevented effectively from these slags and adhere to fire door flue inner wall with flue gas impurity and slagging scorification phenomenon occurs，And then substantially prolongs the service life of fire door flue，Improve the production and application safety of fire door flue，It is greatly reduced labor strength.
Claims (2)
- null1. utilize air-casing to prevent the fire door flue of slagging scorification，Including: the fire door flue formed by fire door vertical section flue and fire door oblique curved segment flue，It is characterized in that: on fire door vertical section flue, be evenly distributed with some spouts stretch into the first jet pipe of fire door vertical section flue，It is evenly distributed with some spouts on fire door oblique curved segment flue at fire door oblique curved segment flue gas stream windward side and stretches into the second jet pipe of fire door oblique curved segment flue，All first jet pipes and the second jet pipe are connected with vapour gas house steward by connecting line respectively simultaneously，Vapour gas house steward is connected with steam pipe and nitrogen tube simultaneously，Steam pipe is provided with the first valve that can open or close steam pipe，Nitrogen tube is provided with the second valve that can open or close nitrogen tube，Steam pipe is connected with steamdrum，Nitrogen tube is connected with nitrogen storage tank，Interlaced distribution between described first jet pipe、And form some row the first jet pipe group；Each column the first jet pipe group is connected with a first throttle straight tube simultaneously, and all first throttle straight tubes are connected with the first endless tube simultaneously, and the first endless tube is connected with vapour gas house steward by the first connecting tube.
- The fire door flue utilizing air-casing to prevent slagging scorification the most according to claim 1, it is characterised in that: interlaced distribution form some row the second jet pipe group between described second jet pipe；Each column the second jet pipe group is connected with one second throttling straight tube simultaneously, and all second throttling straight tubes are connected with the second endless tube simultaneously, and the second endless tube is connected with vapour gas house steward by the second connecting tube.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201410637895.XA CN104357612B (en) | 2014-11-13 | 2014-11-13 | Air-casing is utilized to prevent the fire door flue of slagging scorification |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201410637895.XA CN104357612B (en) | 2014-11-13 | 2014-11-13 | Air-casing is utilized to prevent the fire door flue of slagging scorification |
Publications (2)
| Publication Number | Publication Date |
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| CN104357612A CN104357612A (en) | 2015-02-18 |
| CN104357612B true CN104357612B (en) | 2016-09-14 |
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| CN201410637895.XA Active CN104357612B (en) | 2014-11-13 | 2014-11-13 | Air-casing is utilized to prevent the fire door flue of slagging scorification |
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Family Cites Families (6)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN2851811Y (en) * | 2005-10-09 | 2006-12-27 | 贵阳铝镁设计研究院 | Steam blockage preventer for pipeline |
| CN2910956Y (en) * | 2006-06-12 | 2007-06-13 | 江阴海陆冶金设备制造有限公司 | Coiled-pipe air-seal type active chimney of evaporated cooling flue of steelmaking converter |
| CN100404698C (en) * | 2006-06-30 | 2008-07-23 | 江阴海陆冶金设备制造有限公司 | Gasification cooling flue for steel-making converter |
| CN102605136B (en) * | 2012-04-01 | 2013-04-03 | 通化市五一环保科技股份有限公司 | Soft sealing device for converter mouth and fume hood |
| CN103278008B (en) * | 2013-05-17 | 2015-06-03 | 苏州工业园区日高能源科技有限公司 | Reaction tower with air curtain protection and air intake method thereof |
| CN204251640U (en) * | 2014-11-13 | 2015-04-08 | 江苏永钢集团有限公司 | Air-casing is utilized to prevent the fire door flue of slagging scorification |
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Effective date of registration: 20190704 Address after: 215600 Yonglian Village, Nanfeng Town, Zhangjiagang City, Jiangsu Province Patentee after: Lian Feng Steel (Zhangjiagang) Co., Ltd. Address before: 215628 Yonglian Jiangsu Yonggang Group Co., Ltd., Nanfeng Town, Zhangjiagang City, Suzhou City, Jiangsu Province Patentee before: Jiangsu Yonggang Group Co., Ltd. |
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