CN108981402B - Composite water-cooled wall, water-cooled flue and water-cooled furnace cover - Google Patents
Composite water-cooled wall, water-cooled flue and water-cooled furnace cover Download PDFInfo
- Publication number
- CN108981402B CN108981402B CN201811108804.8A CN201811108804A CN108981402B CN 108981402 B CN108981402 B CN 108981402B CN 201811108804 A CN201811108804 A CN 201811108804A CN 108981402 B CN108981402 B CN 108981402B
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- China
- Prior art keywords
- water
- cooled
- cooled tube
- wall
- composite
- Prior art date
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- 239000002131 composite material Substances 0.000 title claims abstract description 22
- 238000007789 sealing Methods 0.000 claims abstract description 26
- 239000002893 slag Substances 0.000 claims abstract description 14
- XLYOFNOQVPJJNP-UHFFFAOYSA-N water Substances O XLYOFNOQVPJJNP-UHFFFAOYSA-N 0.000 claims description 30
- WYTGDNHDOZPMIW-RCBQFDQVSA-N alstonine Natural products C1=CC2=C3C=CC=CC3=NC2=C2N1C[C@H]1[C@H](C)OC=C(C(=O)OC)[C@H]1C2 WYTGDNHDOZPMIW-RCBQFDQVSA-N 0.000 claims description 6
- 238000003466 welding Methods 0.000 claims description 5
- 239000013049 sediment Substances 0.000 claims 4
- 239000000463 material Substances 0.000 claims 3
- 150000001875 compounds Chemical class 0.000 claims 1
- 239000011819 refractory material Substances 0.000 abstract description 15
- 230000005855 radiation Effects 0.000 abstract description 3
- 239000000498 cooling water Substances 0.000 abstract description 2
- 238000004134 energy conservation Methods 0.000 abstract description 2
- 238000005265 energy consumption Methods 0.000 abstract description 2
- 238000001816 cooling Methods 0.000 description 28
- 238000010586 diagram Methods 0.000 description 3
- 230000003014 reinforcing effect Effects 0.000 description 3
- 229910000831 Steel Inorganic materials 0.000 description 2
- 206010022000 influenza Diseases 0.000 description 2
- 238000012986 modification Methods 0.000 description 2
- 230000004048 modification Effects 0.000 description 2
- 239000010959 steel Substances 0.000 description 2
- 230000008646 thermal stress Effects 0.000 description 2
- UGFAIRIUMAVXCW-UHFFFAOYSA-N Carbon monoxide Chemical compound [O+]#[C-] UGFAIRIUMAVXCW-UHFFFAOYSA-N 0.000 description 1
- 230000002159 abnormal effect Effects 0.000 description 1
- 230000004075 alteration Effects 0.000 description 1
- 238000005336 cracking Methods 0.000 description 1
- 230000007547 defect Effects 0.000 description 1
- 239000000428 dust Substances 0.000 description 1
- 230000000694 effects Effects 0.000 description 1
- 239000003546 flue gas Substances 0.000 description 1
- 238000011010 flushing procedure Methods 0.000 description 1
- 230000007774 longterm Effects 0.000 description 1
- 238000004519 manufacturing process Methods 0.000 description 1
- 239000012528 membrane Substances 0.000 description 1
- 238000005192 partition Methods 0.000 description 1
- 230000002035 prolonged effect Effects 0.000 description 1
- 238000004804 winding Methods 0.000 description 1
Classifications
-
- F—MECHANICAL ENGINEERING; LIGHTING; HEATING; WEAPONS; BLASTING
- F27—FURNACES; KILNS; OVENS; RETORTS
- F27D—DETAILS OR ACCESSORIES OF FURNACES, KILNS, OVENS, OR RETORTS, IN SO FAR AS THEY ARE OF KINDS OCCURRING IN MORE THAN ONE KIND OF FURNACE
- F27D9/00—Cooling of furnaces or of charges therein
-
- F—MECHANICAL ENGINEERING; LIGHTING; HEATING; WEAPONS; BLASTING
- F27—FURNACES; KILNS; OVENS; RETORTS
- F27D—DETAILS OR ACCESSORIES OF FURNACES, KILNS, OVENS, OR RETORTS, IN SO FAR AS THEY ARE OF KINDS OCCURRING IN MORE THAN ONE KIND OF FURNACE
- F27D9/00—Cooling of furnaces or of charges therein
- F27D2009/0002—Cooling of furnaces
- F27D2009/001—Cooling of furnaces the cooling medium being a fluid other than a gas
- F27D2009/0013—Cooling of furnaces the cooling medium being a fluid other than a gas the fluid being water
Abstract
The invention discloses a composite water-cooled wall suitable for working in a high-temperature environment for a long time, which belongs to the field of metallurgical equipment and comprises a water-cooled tube, a sealing plate, slag hanging nails and a refractory material, wherein the sealing plate is arranged on the back hot side of the water-cooled tube and is used for sealing and connecting the water-cooled tube in a roundabout structure on one side, a plurality of slag hanging nails are arranged on the roundabout interval area of the water-cooled tube and the facing surface of the water-cooled tube facing away from the back hot side of the water-cooled tube, the refractory material is arranged on the heated side of the water-cooled tube and is used for filling the roundabout interval area of the water-cooled tube, and the slag hanging nails are wrapped in the refractory material. The invention can effectively reduce radiation heat loss, reduce the consumption of cooling water, maintain the firmness of refractory materials, prolong the service life of equipment and has important significance for energy conservation and consumption reduction.
Description
Technical Field
The invention belongs to the technical field of metallurgical equipment, and particularly relates to a composite water-cooled wall suitable for long-term working in a high-temperature environment, which is suitable for part or all water-cooled parts such as furnace covers and water-cooled flues of arc furnaces and LF furnaces.
Background
The water cooling parts such as furnace covers of the arc furnace and the LF furnace, a water cooling flue and the like are required to work for a long time under abnormal and severe working conditions such as high-temperature baking, strong magnetic radiation, dust flushing and the like, heat loss is reduced while equipment water cooling is ensured, and the purposes of energy saving and consumption reduction are achieved, so that the water cooling parts have the performances of high temperature resistance, low heat conduction and the like and are particularly important.
At present, the water cooling part mainly adopts a tubular structure, and the water cooling wall mainly comprises three types of light pipes, films and pins. The light pipe type water-cooled wall is formed by continuously arranging and welding seamless steel pipes, has a simple structure and is easy to manufacture, but has higher heat conductivity and large heat loss. The membrane water wall is formed by alternately welding water cooling pipes (light pipes or fin pipes) and flat steel, has good sealing performance, but has poor rigidity and is easy to generate thermal deformation or damage. The pin type water-cooling wall is formed by welding a plurality of cylindrical pins on the outer side of the light pipe water-cooling wall and covering refractory materials, the heat conductivity is low, but the refractory materials are concentrated into pieces to be arranged, so that cracking and even falling of the refractory materials are easy to generate due to uneven thermal stress.
Disclosure of Invention
Aiming at the defects of the prior art, the invention provides a composite water-cooled wall which is suitable for part or all water-cooled parts such as a furnace cover and a water-cooled flue of an arc furnace and an LF furnace and is suitable for working in a high-temperature environment for a long time by combining the actual working conditions of the arc furnace and the LF equipment.
The invention is realized by the following technical scheme:
the invention provides a composite water-cooled wall, which comprises a water-cooled pipe, a sealing plate, slag hanging nails and a refractory material, wherein the sealing plate is arranged on the back hot side of the water-cooled pipe and is used for sealing and connecting the water-cooled pipe in a single side to form a roundabout structure.
Further, the detour structure is serpentine or serpentine.
Further, the slag hanging nails are arranged on the sealing plate in a crisscross manner, the other end of the slag hanging nails exceeds or is close to the arrangement center of the water cooling pipes, and the slag hanging nails are connected with the sealing plate in a welding manner.
Further, the sealing plate is a whole or a block, and is directly welded with the water cooling pipe or welded through the reinforcing rib plate.
Further, the refractory materials are arranged at intervals in a winding interval area on the heat receiving side of the water cooling pipe in a dispersing mode.
Further, a heat insulating layer is additionally arranged between the sealing plate and the refractory.
The invention also provides a water-cooling flue, which is formed by enclosing the composite water-cooling wall, wherein the cross section of the water-cooling flue is rectangular, circular or runway-shaped; and in the flow field direction, the flow field is in a constant cross-section structure or a variable cross-section structure.
The invention also provides a water-cooled furnace cover which is manufactured by adopting the composite water-cooled wall.
The invention has the advantages that:
1. the water cooling pipes and the sealing plates which are arranged in a snakelike or a zigzag way form a composite water cooling wall foundation frame, and are reinforced by reinforcing rib plates, so that the overall rigidity of the water cooling wall is effectively improved, and the high-temperature deformation resistance is improved.
2. The gap of the water cooling pipe is filled with the refractory material, so that the heat transfer area of the composite water cooling wall in contact with high-temperature flue gas is effectively reduced, the overall heat conductivity of the water cooling wall is reduced, the radiation heat loss is reduced, the consumption of cooling water is reduced, and the energy conservation and consumption reduction are facilitated.
3. The refractory materials are filled in the gaps of the water-cooled tubes at intervals in a dispersing way, and are anchored by slag hanging nails, so that the thermal stress uniformity of the refractory materials is effectively improved, the firmness of the refractory materials is maintained, and the service life of equipment is prolonged.
Additional advantages, objects, and features of the invention will be set forth in part in the description which follows and in part will become apparent to those having ordinary skill in the art upon examination of the following or may be learned from practice of the invention. The objects and other advantages of the invention may be realized and obtained by means of the instrumentalities and combinations particularly pointed out in the specification.
Drawings
For the purpose of making the objects, technical solutions and advantages of the present invention more apparent, the present invention will be described in further detail with reference to the accompanying drawings, in which:
FIG. 1 is a schematic view of a cross-sectional structure (I) of a water wall according to the present invention;
FIG. 2 is a schematic diagram of a cross-sectional structure (II) of a water wall according to the present invention;
FIG. 3 is a schematic view of a cross-sectional structure (III) of the water wall according to the present invention;
FIG. 4 is a schematic view of the arrangement of the water-cooled tubes of the present invention;
FIG. 5 is a schematic view of a cross-sectional shape (I) of a water-cooled flue using the cross-sectional structure of the water-cooled wall of FIG. 1 in accordance with the present invention;
FIG. 6 is a schematic view of a cross-sectional shape (II) of a water-cooled flue using the cross-sectional structure of the water-cooled wall of FIG. 1 in accordance with the present invention;
FIG. 7 is a schematic view of a cross-sectional shape (III) of a water-cooled flue employing the cross-sectional structure of the water-cooled wall of FIG. 1 in accordance with the present invention;
FIG. 8 is a schematic diagram of the cross-sectional shape of the furnace cover of the electric furnace adopting the water-cooled wall cross-sectional structure of FIG. 1;
FIG. 9 is a schematic diagram of the cross-sectional shape of the LF furnace cover employing the water wall cross-sectional structure of FIG. 1 in accordance with the present invention;
reference numerals in the drawings: 1-water cooling pipe, 2-sealing plate, 3-slag hanging nail, 4-refractory material, 5-reinforcing rib plate, 6-heat insulating layer and a-detour gap partition.
Detailed Description
Other advantages and effects of the present invention will become apparent to those skilled in the art from the following disclosure, which describes the embodiments of the present invention with reference to specific examples. The invention may be practiced or carried out in other embodiments that depart from the specific details, and the details of the present description may be modified or varied from the spirit and scope of the present invention. It should be noted that the illustrations provided in the following embodiments merely illustrate the basic idea of the present invention by way of illustration, and the following embodiments and features in the embodiments may be combined with each other without conflict.
Embodiment one:
referring to fig. 1 and 4, the composite water-cooled wall of this embodiment is mainly composed of a water-cooled tube 1, a sealing plate 2, slag hanging nails 3 and a refractory 4, the sealing plate 2 is arranged on the back hot side of the water-cooled tube 1 and is used for single-sided closed connection and is in a roundabout structure, the roundabout structure adopts a serpentine interval arrangement structure, although in different embodiments, a rectangular interval arrangement structure can also be adopted, the sealing plate adopts a block type, i.e. the sealing plate comprises a plurality of roundabout intervals a of the water-cooled tube, the sealing plate 2 and the water-cooled tube 1 are directly welded, the sealing plate 2 is provided with a plurality of slag hanging nails 3 on the roundabout interval a of the water-cooled tube 1 and the facing surface facing away from the back hot side of the water-cooled tube 1, the slag hanging nails 3 are arranged on the sealing plate 2 in a crisscross manner, and are welded and connected with each other, and the refractory 4 is arranged on the heated side of the water-cooled tube 1 and is used for filling the roundabout interval a of the water-cooled tube 1, i.e. the refractory 4 is in a space-dispersive arrangement on the roundabout interval a of the water-cooled tube 1, and the slag hanging nails 3 are adhered to the refractory 4 and the sealing plate. Compared with the prior art, the composite water-cooled wall adopting the scheme has the remarkable advantages of high temperature resistance, low heat conductivity, long service life and the like, and is worthy of being widely popularized in the metallurgical field, especially in part or all water-cooled parts such as furnace covers of arc furnaces and LF furnaces and water-cooled flues.
Embodiment two:
as shown in fig. 2, the first difference between this embodiment and the second embodiment is that the sealing plate adopts a monolithic structure, and the sealing plate and the water cooling pipe are welded by the reinforcing rib plate. Therefore, the consumption of the refractory materials arranged in the roundabout interval area a of the water cooling pipe 1 can be increased, and the high temperature resistance of the composite water cooling wall can be further improved.
Embodiment III:
as shown in fig. 3, the present embodiment is different from the second embodiment in that a heat insulating layer 6 is added between the sealing plate 2 and the refractory 4. The high temperature resistance of the composite water-cooled wall can be further improved.
In addition, as shown in fig. 5, 6 and 7, the invention also provides a water-cooling flue, which is formed by enclosing the composite water-cooling wall, and the section shape of the water-cooling flue can be rectangular, circular or runway-shaped; and in the flow field direction, the flow field is in a constant cross-section structure or a variable cross-section structure.
In addition, as shown in fig. 8 and 9, the invention also provides a water-cooled furnace cover, which is manufactured by adopting the composite water-cooled wall. Can be used for furnace covers of arc furnaces and LF furnaces.
The above description is only of the preferred embodiments of the present invention and is not intended to limit the invention, and it will be apparent to those skilled in the art that various modifications and variations can be made in the present invention without departing from the spirit and scope of the invention. Thus, it is intended that the present invention also include such modifications and alterations insofar as they come within the scope of the appended claims or the equivalents thereof.
Claims (7)
1. The utility model provides a compound water-cooled wall, its characterized in that includes water-cooled tube (1), closing plate (2), hanging sediment nail (3), resistant material (4), the closing plate is arranged in water-cooled tube back of the body hot side and is used for single face to seal to connect and is circuitous structure the water-cooled tube is monoblock, and passes through deep floor (5) welding with the water-cooled tube, its face that deviates from that is located circuitous interval (a) of water-cooled tube and deviates from water-cooled tube back of the body hot side is equipped with a plurality of hanging sediment nail, resistant material arrange in water-cooled tube heated side and be used for filling circuitous interval of water-cooled tube, and hanging sediment nail is wrapped up in resistant material, hanging sediment nail is crisscross arrangement on the closing plate, and the other end surpasses or is close water-cooled tube and arranges the center.
2. The composite water wall of claim 1, wherein the serpentine structure is serpentine or serpentine.
3. The composite water wall of claim 1, wherein the slag hanging nails are welded with the sealing plate.
4. The composite water wall of claim 1, wherein the refractory is arranged in a circuitous spacing area on the heated side of the water-cooled tube in a spaced apart and dispersed arrangement.
5. The composite water-cooled wall according to claim 1, wherein a heat insulating layer (6) is additionally arranged between the sealing plate and the refractory.
6. A water-cooled flue, characterized in that the water-cooled flue is formed by enclosing the composite water-cooled wall according to any one of claims 1 to 5, and the cross section of the water-cooled flue is rectangular, circular or racetrack; and in the flow field direction, the flow field is in a constant cross-section structure or a variable cross-section structure.
7. A water cooled furnace cover, characterized in that it is manufactured by using the composite water cooled wall according to any one of claims 1-5.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201811108804.8A CN108981402B (en) | 2018-09-21 | 2018-09-21 | Composite water-cooled wall, water-cooled flue and water-cooled furnace cover |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201811108804.8A CN108981402B (en) | 2018-09-21 | 2018-09-21 | Composite water-cooled wall, water-cooled flue and water-cooled furnace cover |
Publications (2)
| Publication Number | Publication Date |
|---|---|
| CN108981402A CN108981402A (en) | 2018-12-11 |
| CN108981402B true CN108981402B (en) | 2024-02-23 |
Family
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Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN201811108804.8A Active CN108981402B (en) | 2018-09-21 | 2018-09-21 | Composite water-cooled wall, water-cooled flue and water-cooled furnace cover |
Country Status (1)
| Country | Link |
|---|---|
| CN (1) | CN108981402B (en) |
Citations (6)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| JPH0995709A (en) * | 1995-09-29 | 1997-04-08 | Nippon Steel Corp | Water-cooling molten slag trough |
| KR19980063586A (en) * | 1996-12-18 | 1998-10-07 | 간지도미타 | Preheating device for metal scrap |
| CN2732754Y (en) * | 2004-10-12 | 2005-10-12 | 江阴兴澄特种钢铁有限公司 | Water cooled furnace wall for steel making furnace |
| CN102329658A (en) * | 2011-08-23 | 2012-01-25 | 华东理工大学 | Cold-wall type lining for entrained flow bed gasification furnace and device comprising same |
| CN105209842A (en) * | 2013-06-28 | 2015-12-30 | 里弗雷克特里知识产权两合公司 | Multilayer cooling panel and electric arc furnace |
| CN208887385U (en) * | 2018-09-21 | 2019-05-21 | 中冶赛迪工程技术股份有限公司 | A kind of composite water cold wall and water-cooled flue, water cooled cover |
-
2018
- 2018-09-21 CN CN201811108804.8A patent/CN108981402B/en active Active
Patent Citations (6)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| JPH0995709A (en) * | 1995-09-29 | 1997-04-08 | Nippon Steel Corp | Water-cooling molten slag trough |
| KR19980063586A (en) * | 1996-12-18 | 1998-10-07 | 간지도미타 | Preheating device for metal scrap |
| CN2732754Y (en) * | 2004-10-12 | 2005-10-12 | 江阴兴澄特种钢铁有限公司 | Water cooled furnace wall for steel making furnace |
| CN102329658A (en) * | 2011-08-23 | 2012-01-25 | 华东理工大学 | Cold-wall type lining for entrained flow bed gasification furnace and device comprising same |
| CN105209842A (en) * | 2013-06-28 | 2015-12-30 | 里弗雷克特里知识产权两合公司 | Multilayer cooling panel and electric arc furnace |
| CN208887385U (en) * | 2018-09-21 | 2019-05-21 | 中冶赛迪工程技术股份有限公司 | A kind of composite water cold wall and water-cooled flue, water cooled cover |
Also Published As
| Publication number | Publication date |
|---|---|
| CN108981402A (en) | 2018-12-11 |
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