CN204251640U - 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
- Publication number
- CN204251640U CN204251640U CN201420675776.9U CN201420675776U CN204251640U CN 204251640 U CN204251640 U CN 204251640U CN 201420675776 U CN201420675776 U CN 201420675776U CN 204251640 U CN204251640 U CN 204251640U
- Authority
- CN
- China
- Prior art keywords
- fire door
- flue
- vapour
- pipe
- jet pipe
- Prior art date
- Legal status (The legal status is an assumption and is not a legal conclusion. Google has not performed a legal analysis and makes no representation as to the accuracy of the status listed.)
- Withdrawn - After Issue
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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
Abstract
The utility model discloses the fire door flue utilizing air-casing to prevent slagging scorification, comprise: the fire door flue formed by fire door vertical section flue and the oblique curved segment flue of fire door, fire door vertical section flue is evenly distributed with the first jet pipe that some spouts stretch into fire door vertical section flue, the fire door oblique curved segment flue at fire door oblique curved segment flue gas stream windward side place is evenly distributed with the second jet pipe that some spouts stretch into the oblique curved segment flue of fire door, all first jet pipes and the second jet pipe are connected with vapour gas house steward respectively by connecting pipeline simultaneously, vapour gas house steward is connected with vapour pipe and nitrogen tube simultaneously, vapour pipe is provided with first valve that can open or close vapour pipe, nitrogen tube is provided with second valve that can open or close nitrogen tube, vapour pipe is connected with steam pockets, nitrogen tube is connected with nitrogen storage tank.The utility model has the advantage that can prevent flue inner wall slagging scorification.
Description
Technical field
The utility model relates to the fire door flue utilizing air-casing to prevent slagging scorification.
Background technology
In steel-making industry, the fire door flue used at present comprises fire door vertical section flue and the oblique curved segment flue of fire door, bessemerize the flue gas that produces in process and enter fire door flue and upwards after the oblique curved segment flue of fire door from the inlet mouth of fire door vertical section flue lower end, then enter dust-removal system from the air outlet of the oblique curved segment flue of fire door.The shortcoming of this fire door flue is: because converter produces in flue gas containing a large amount of impurity in converting process, after flue gas is by fire door vertical section flue and the oblique curved segment flue of fire door, a large amount of impurity in flue gas very 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 upwards faces of converter mouth, the slag simultaneously floating on molten steel surface under the effect of upwards hot gas flow of bessemerizing generation also very easily splash in fire door vertical section flue inner wall and fire door oblique curved segment flue gas stream windward side, easily slagging scorification after these slags and flue gas impurities adhere fire door flue inner wall, not only greatly reduce the work-ing life of fire door flue, for hidden danger has been buried in safety in production, and workman to process the labour intensity of slagging scorification large.
Utility model content
The purpose of this utility model is to provide a kind of air-casing that utilizes of flue inner wall slagging scorification that can prevent and prevents the fire door flue of slagging scorification.
For achieving the above object, the utility model have employed following technical scheme: the described air-casing that utilizes prevents the fire door flue of slagging scorification, comprise: the fire door flue formed by fire door vertical section flue and the oblique curved segment flue of fire door, fire door vertical section flue is evenly distributed with the first jet pipe that some spouts stretch into fire door vertical section flue, the fire door oblique curved segment flue at fire door oblique curved segment flue gas stream windward side place is evenly distributed with the second jet pipe that some spouts stretch into the oblique curved segment flue of fire door, all first jet pipes and the second jet pipe are connected with vapour gas house steward respectively by connecting pipeline simultaneously, vapour gas house steward is connected with vapour pipe and nitrogen tube simultaneously, vapour pipe is provided with first valve that can open or close vapour pipe, nitrogen tube is provided with second valve that can open or close nitrogen tube, vapour pipe is connected with steam pockets, nitrogen tube is connected with nitrogen storage tank.
Further, the aforesaid fire door flue utilizing air-casing to prevent slagging scorification, wherein: interlaced distribution between described first jet pipe also forms some row first jet pipe groups; Often row 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 pipe connecting.
Further, the aforesaid fire door flue utilizing air-casing to prevent slagging scorification, wherein: interlaced distribution between described second jet pipe also forms some row second jet pipe groups; Often row second jet pipe group is connected with a 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 pipe connecting.
By the enforcement of technique scheme, the utility model has the advantage that flue inner wall slagging scorification, the work-ing life that can extend fire door flue, production and application security can be prevented high.
Accompanying drawing explanation
Fig. 1 is the structural representation utilizing air-casing to prevent the fire door flue of slagging scorification described in the utility model.
Embodiment
Below in conjunction with the drawings and specific embodiments, the utility model is described in further detail.
As shown in Figure 1, the described air-casing that utilizes prevents the fire door flue of slagging scorification, comprise: the fire door flue formed by fire door vertical section flue 1 and the oblique curved segment flue 2 of fire door, fire door vertical section flue 1 is evenly distributed with the first jet pipe 3 that some spouts stretch into fire door vertical section flue 1, the fire door oblique curved segment flue 2 at fire door oblique curved segment flue gas stream windward side place is evenly distributed with the second jet pipe 4 that some spouts stretch into the oblique curved segment flue of fire door, all first jet pipes 3 and the second jet pipe 4 are connected with vapour gas house steward 5 respectively by connecting pipeline simultaneously, vapour gas house steward 5 is connected with vapour pipe 6 and nitrogen tube 7 simultaneously, vapour pipe 6 is provided with first valve 8 that can open or close vapour pipe 6, nitrogen tube 7 is provided with second valve 9 that can open or close nitrogen tube 7, vapour pipe 6 is connected with steam pockets 10, nitrogen tube 7 is connected with nitrogen storage tank 11, in the present embodiment, interlaced distribution form some row first jet pipe groups between described first jet pipe 3, often row 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 pipe connecting 14, and this pipeline distributed architecture is simple, and installation and maintenance are convenient, in the present embodiment, interlaced distribution form some row second jet pipe groups between described second jet pipe 4, often row second jet pipe group is connected with a 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 pipe connecting 17, and this pipeline distributed architecture is simple, and installation and maintenance are convenient,
Principle of work of the present utility model is as follows: before bessemerizing, open the first valve 8 on vapour pipe 6, the steam in steam pockets 10 is made to enter vapour gas house steward 5 by vapour 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, vapour oxygen mixture can be mixed to form after steam and nitrogen enter vapour gas house steward 5 simultaneously, vapour oxygen mixture can successively along the first pipe connecting 14, first endless tube 13, first throttle straight tube 12 enters each first jet pipe 3, fire door vertical section flue 1 is sprayed into again from the spout of the first jet pipe 3, 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 the second pipe connecting 17, second endless tube 16, second throttling straight tube 15 successively simultaneously, spray into the oblique curved segment flue 2 of fire door from the spout of the second jet pipe 4 again, 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, by vapour oxygen mixture shape air-casing suitably can not only cool fire door flue inner wall, under avoiding fire door flue to be in the bad working environments of high temperature all the time, and then extend the work-ing life of fire door flue, and the gas flow rate of the air-casing to be formed by vapour oxygen mixture is fast, like this in the process of 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 stop by air-casing and can not stick on fire door vertical section flue 1 inwall and fire door oblique curved segment flue gas stream windward side, the slag simultaneously floating on molten steel surface under the effect of upwards hot gas flow of bessemerizing generation upwards splash time, slag also can stop by air-casing and can not stick on fire door vertical section flue 1 inwall and fire door oblique curved segment flue gas stream windward side, thus effectively avoid these slags and flue gas impurities adhere fire door flue inner wall and slagging scorification phenomenon occurs, and then substantially prolongs the work-ing life of fire door flue, improve the production and application security of fire door flue, also labor strength is greatly reduced.
Claims (3)
1. utilize air-casing to prevent the fire door flue of slagging scorification, comprise: the fire door flue formed by fire door vertical section flue and the oblique curved segment flue of fire door, it is characterized in that: on fire door vertical section flue, be evenly distributed with the first jet pipe that some spouts stretch into fire door vertical section flue, the fire door oblique curved segment flue at fire door oblique curved segment flue gas stream windward side place is evenly distributed with the second jet pipe that some spouts stretch into the oblique curved segment flue of fire door, all first jet pipes and the second jet pipe are connected with vapour gas house steward respectively by connecting pipeline simultaneously, vapour gas house steward is connected with vapour pipe and nitrogen tube simultaneously, vapour pipe is provided with first valve that can open or close vapour pipe, nitrogen tube is provided with second valve that can open or close nitrogen tube, vapour pipe is connected with steam pockets, nitrogen tube is connected with nitrogen storage tank.
2. the fire door flue utilizing air-casing to prevent slagging scorification according to claim 1, is characterized in that: interlaced distribution between described first jet pipe also forms some row first jet pipe groups; Often row 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 pipe connecting.
3. the fire door flue utilizing air-casing to prevent slagging scorification according to claim 1, is characterized in that: interlaced distribution between described second jet pipe also forms some row second jet pipe groups; Often row second jet pipe group is connected with a 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 pipe connecting.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201420675776.9U CN204251640U (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 |
|---|---|---|---|
| CN201420675776.9U CN204251640U (en) | 2014-11-13 | 2014-11-13 | Air-casing is utilized to prevent the fire door flue of slagging scorification |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| CN204251640U true CN204251640U (en) | 2015-04-08 |
Family
ID=52955965
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN201420675776.9U Withdrawn - After Issue CN204251640U (en) | 2014-11-13 | 2014-11-13 | Air-casing is utilized to prevent the fire door flue of slagging scorification |
Country Status (1)
| Country | Link |
|---|---|
| CN (1) | CN204251640U (en) |
Cited By (1)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN104357612A (en) * | 2014-11-13 | 2015-02-18 | 江苏永钢集团有限公司 | Furnace mouth flue utilizing gas partition layer to prevent slagging |
-
2014
- 2014-11-13 CN CN201420675776.9U patent/CN204251640U/en not_active Withdrawn - After Issue
Cited By (1)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN104357612A (en) * | 2014-11-13 | 2015-02-18 | 江苏永钢集团有限公司 | Furnace mouth flue utilizing gas partition layer to prevent slagging |
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Legal Events
| Date | Code | Title | Description |
|---|---|---|---|
| C14 | Grant of patent or utility model | ||
| GR01 | Patent grant | ||
| AV01 | Patent right actively abandoned |
Granted publication date: 20150408 Effective date of abandoning: 20160914 |
|
| C25 | Abandonment of patent right or utility model to avoid double patenting |