CN202274734U - Tubular water cooling flue used for electric furnace - Google Patents
Tubular water cooling flue used for electric furnace Download PDFInfo
- Publication number
- CN202274734U CN202274734U CN2011203367264U CN201120336726U CN202274734U CN 202274734 U CN202274734 U CN 202274734U CN 2011203367264 U CN2011203367264 U CN 2011203367264U CN 201120336726 U CN201120336726 U CN 201120336726U CN 202274734 U CN202274734 U CN 202274734U
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- Prior art keywords
- flue
- electric furnace
- water
- water cooling
- pipes
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- 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.)
- Expired - Fee Related
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Abstract
The utility model relates to a tubular water cooling flue used for an electric furnace. The flue is formed by welding a plurality of boiler pipes, the inner cavity of the flue has a circular cross section, the boiler pipes are provided with water inlets and water outlets, and a pressing seal head is arranged between connecting flanges of each pipe of the high temperature flue. According to the tubular water cooling flue, the seal head is arranged between the pipes, the existence of the seal head can improve the connecting strength of each joint and reduces the possibility of water leakage between the pipes, and the cooling effect on the high temperature flue is improved.
Description
Technical field
The utility model relates to the steel smelting equipment technical field, relates in particular to a kind of electric furnace and uses the tubular type water-cooled flue.
Background technology
At steel mill; Along with the continual renovation replacement of electric furnace equipment and the Continual Improvement of operating procedure, make output of steel constantly soaring, also significantly increase and smelt the flue gas that produces thereupon; This causes very big pressure to dust pelletizing system, and the high-temperature flue that particularly serves as electric furnace flue discharging main channel stands in the breach.Common high-temperature flue is a circular cross-section global design; Be to be made as the one of which with thick heat-resisting steel sheet and plate or thick corrosion resistant plate, because the temperature in the high-temperature flue is up to 1200 ℃, the flue gas flue of flowing through; The flue heat expansion rate made from steel plate is bigger; Thermal shock resistance is low, and the life-span of flue is very low, and its cost is also very high.
To above-mentioned defective; Someone develops and in steel plate, establishes chuck, and logical cooling water is effectively cooling off high-temperature flue in this chuck, but water circulation dead band inevitably can appear in this kind version; Be that part water can not effectively carry out heat exchange, have the unfavorable defective of water-cooled effect; So on this basis; The patent No. is that the patent of 01278849x provides a kind of new water-cooled flue; This water-cooled flue is welded by the tubule of some water flowings and forms the solid matter pipe; There is not the slough the more traditional jacket type structure of tube-to-tube construction form in it, can effectively cool off flue, has improved the service life of flue; But also there is a weak spot through above-mentioned improvement rear pass, i.e. junction of each pipe, traditional structure is general directly to be connected through flange, and this kind type of attachment bonding strength first has ground to improve, and second connecting portion is easy to generate drainage.
The utility model content
The utility model is directed against above-mentioned defective, and purpose is to provide a kind of electric furnace that can improve bonding strength between pipe and the pipe, minimizing drainage to use the tubular type water-cooled flue.
The technical scheme of the utility model employing is for this reason: it is circular cross-section that said flue forms inner chamber by some boiler tubes welding, and boiler tube is provided with water inlet and delivery port, and high-temperature flue is respectively managed and established the compacting end socket between the adpting flange.
The utility model is established end socket between pipe and pipe, the existence of end socket can improve the bonding strength of each junction first, and second the existence of each end socket has reduced the possibility of leaking between pipe and the pipe, improves the cooling effect to high-temperature flue.
Description of drawings
Fig. 1 is the structural representation of the utility model.
Fig. 2 is the sectional view of the utility model flue.
1 is that boiler tube, 2 is that adpting flange, 3 is that end socket, 4 is that intake-outlet, 5 is that hanger, 6 is shroud ring among the figure.
The specific embodiment
The utility model flue cross section is circular; Formed by some boiler tube 1 welding, be respectively equipped with intake-outlet 4 on each boiler tube 1, high-temperature flue is respectively managed and is established compacting end socket 3 between the adpting flange 2; And install through hanger 5, the utility model flue peripheral hardware shroud ring 6 is to strengthen flue intensity.
The utility model is welded into the whole high-temperature flue of circular cross-section with some boiler tubes 1, and product is installed on the electric furnace, and working media adopts decontamination cycle water, and its operating pressure is 0.6MPa, and inflow temperature is lower than 35 ℃, and leaving water temperature is not higher than 55 ℃; 2, elbow between original product tube and tube is connected suppress end socket 3 instead and connect, increase the product mechanical strength, reduce pipeline Yin Gaowen and the possibility of leaking; 3, steel tube bending adopts the medium frequency bending of pipe technology, can guarantee the ellipse garden of product degree effectively, reduces steel pipe stress, can make water-cooled more smooth, and impulsive force reduces.
Claims (1)
1. electric furnace is used the tubular type water-cooled flue, and it is circular cross-section that said flue forms inner chamber by some boiler tube welding, and boiler tube is provided with water inlet and delivery port, it is characterized in that, high-temperature flue is respectively managed and established the compacting end socket between the adpting flange.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN2011203367264U CN202274734U (en) | 2011-09-08 | 2011-09-08 | Tubular water cooling flue used for electric furnace |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN2011203367264U CN202274734U (en) | 2011-09-08 | 2011-09-08 | Tubular water cooling flue used for electric furnace |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| CN202274734U true CN202274734U (en) | 2012-06-13 |
Family
ID=46195085
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN2011203367264U Expired - Fee Related CN202274734U (en) | 2011-09-08 | 2011-09-08 | Tubular water cooling flue used for electric furnace |
Country Status (1)
| Country | Link |
|---|---|
| CN (1) | CN202274734U (en) |
Cited By (1)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN102705848A (en) * | 2012-07-06 | 2012-10-03 | 中冶赛迪工程技术股份有限公司 | Branch warehouse heat exchange type chimney flue |
-
2011
- 2011-09-08 CN CN2011203367264U patent/CN202274734U/en not_active Expired - Fee Related
Cited By (1)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN102705848A (en) * | 2012-07-06 | 2012-10-03 | 中冶赛迪工程技术股份有限公司 | Branch warehouse heat exchange type chimney flue |
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Legal Events
| Date | Code | Title | Description |
|---|---|---|---|
| C14 | Grant of patent or utility model | ||
| GR01 | Patent grant | ||
| CF01 | Termination of patent right due to non-payment of annual fee | ||
| CF01 | Termination of patent right due to non-payment of annual fee |
Granted publication date: 20120613 Termination date: 20170908 |