CN209326337U - Water-cooling cover plate device - Google Patents
Water-cooling cover plate device Download PDFInfo
- Publication number
- CN209326337U CN209326337U CN201822208971.1U CN201822208971U CN209326337U CN 209326337 U CN209326337 U CN 209326337U CN 201822208971 U CN201822208971 U CN 201822208971U CN 209326337 U CN209326337 U CN 209326337U
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- water pipe
- straight type
- type water
- expansion chamber
- cover plate
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Abstract
The utility model discloses a kind of water-cooling cover plate devices, it is related to steelmaking technical field, including into, return header, it further include straight type water pipe, metal hose and welding point, straight type water pipe is according to the span close-packed arrays of expansion chamber, the ipsilateral closure of adjacent straight type water pipe, the upper side aperture connecting welding connector is simultaneously connected to by metal hose, other side set-up mode is identical and installs ball valve additional, the reserved matching silk tooth in ball valve one end, be connected to nearby with straight type water pipe into, return header by welding point, metal hose, straight type water pipe top is equipped with asbestos mat.The utility model applies to flue for electric furnace region, is located above expansion chamber and uses as cover board, prevents heat radiation and flue gas, slag dirt from washing away and impact to the equipment above expansion chamber, significant effect.
Description
Technical field
The utility model relates to steelmaking technical fields, more particularly to a kind of water-cooling cover plate device.
Background technique
Currently, the main steelmaking equipment in China is divided into pneumatic steelmaking and two kinds of electric furnace steel making.The heat source of electric furnace steel making is main
It is that each of three electrodes being made by graphite are reached by transformer, secondary side, water-cooled cable, conductive cross arm respectively by electric energy, in smelting
During refining, strong electric arc is generated between the end and furnace charge of each of three electrodes, to generate high thermal energy, passes through thermal energy
It will be load melting.Electric arc furnaces periphery is disposed with 3 coherent oxygen lances, it is the high energy fire generated using natural gas and oxygen mix
Flame, to accelerate load melting speed.
During smelting, electric furnace can generate the gases such as flue gas, slag dirt and the CO of temperature and very high concentrations, pass through electric furnace
The pernicious gases such as the intracorporal high-temperature flue gas of electric furnace, slag dirt and CO are passed through four hole a of furnace lid by the negative pressure that dust pelletizing system generates
Be pumped into mobile flue b, then by two, three sections of c to expansion chamber d of flue, will be precipitated after slag dirt second-time burning, high temperature by CO after-flame,
Subsequent high-temperature flue gas is by reaching later process e after expansion chamber accumulation of heat.Since the space of expansion chamber d is relatively closed, surrounding is resistance to
Material structure, this just needs the water-cooling cover plate f of top that heat radiation and flue gas, slag particle, vortex etc. is prevented to wash away to setting above expansion chamber
It is damaged caused by standby.
The water-cooling cover plate f of existing design is a kind of straight tube around cooling device (see figure 1).Water-cooling cover plate is located at flue
Two, below three sections of c, above expansion chamber d, its own is fixed on the wall two sides of expansion chamber refractory brick.Water-cooling cover plate f be by into,
The composition such as return header 1, coil pipe and resistance to material 3.The coil pipe of water-cooling cover plate is communicated with each other by elbow, is connected finally by hose
To always on, return header, water-cooling cover plate medial surface welds pawl fourth, resistance to material is built, to guarantee cover plate for sealing performance.
With the increase of water-cooling cover plate service life, the weakness of its own also starts to show.By high temperature cigarette inside expansion chamber
The vortex such as gas are washed away, in addition internal violent combustion reaction, resistance to material can removing slowly, and water-cooling cover plate due to area it is larger
(water pipe width is in 6m), dismounting itself is very inconvenient, and replacing offline water-cooling cover plate, to build the resistance to material period again longer；Resistance to material
It falls and the leakproofness of expansion chamber water-cooling cover plate itself can be had an impact, and leak flue gas phenomenon and occur frequently.Inside expansion chamber
Environment and the height of itself, leak be difficult repair welding processing, leak also can preheating recovering effect to later process generate it is very big
Influence.
Utility model content
In order to solve the above technical problems, the utility model provides a kind of water-cooling cover plate device, including catchment into, return water
Pipe, further includes straight type water pipe, metal hose and welding point, span close-packed arrays of the straight type water pipe according to expansion chamber, adjacent straight
The ipsilateral closure of type water pipe, the upper side aperture connecting welding connector are simultaneously connected to by metal hose, and other side set-up mode is identical
And install ball valve additional, the reserved matching silk tooth in ball valve one end, into, return header by welding point, metal hose nearby with straight type
Water pipe connection, straight type water pipe top are equipped with asbestos mat.
Technical effect: the utility model applies to flue for electric furnace region, is located above expansion chamber and uses as cover board, prevents
Heat radiation and flue gas, slag dirt, which are washed away, impacts the equipment above expansion chamber, significant effect.
The technical solution that the utility model further limits is:
The preceding water-cooling cover plate device, the width and expansion chamber of straight type water pipe are of same size, when expansion chamber width increases
When, water-cooled beam is added in expansion chamber middle position.
The preceding water-cooling cover plate device, the material of straight type water pipe use boiler dedicated steel pipe 20G, specification be φ 89 ×
11mm。
The beneficial effects of the utility model are:
(1) the utility model in use, since the welding point of straight type water pipe directly connects with into, return header
It connects, therefore has saved flow path, cooling effect is more preferable；
(2) adjacent straight type water pipe has individual valve in the utility model, and processing water pipe leak method is more succinct, only needs
Abnormal water route is closed, to having time processing, the water pipe for not influencing other water-cooling cover plates is used, and more water-changing tube is convenient；
(3) when expansion chamber width increases in the utility model, in expansion chamber middle position installation water-cooled beam, to support two sides
Water pipe end；
(4) asbestos mat in the utility model above water-cooling cover plate ensure that the leakproofness of water-cooling cover plate.
Detailed description of the invention
Fig. 1,2 are background technique attached drawing；
Fig. 3 is that water-cooling cover plate is located at schematic diagram above expansion chamber in the utility model；
Fig. 4 is water-cooling cover plate top view in the utility model；
Fig. 5 is water-cooling cover plate overall schematic in the utility model；
Fig. 6 is water-cooling cover plate partial schematic diagram in the utility model；
Wherein: 1, into, return header；2, metal hose；3, straight type water pipe；4, welding point.
Specific embodiment
A kind of water-cooling cover plate device provided in this embodiment, structure as seen in figures 3-6, including into, return header 1, also
Including straight type water pipe 3, metal hose 2 and welding point 4, the material of straight type water pipe 3 uses boiler dedicated steel pipe 20G, and specification is
φ89×11mm.For straight type water pipe 3 according to the span close-packed arrays of expansion chamber, the width and expansion chamber of straight type water pipe 3 are of same size,
When expansion chamber width increases, water-cooled beam is added in expansion chamber middle position.The ipsilateral closure of adjacent straight type water pipe 3, the upper side
Aperture connecting welding connector 4 is simultaneously connected to by metal hose 2, and other side set-up mode is identical and installs ball valve additional, and ball valve one end is pre-
Matching silk tooth is stayed, is connected to nearby with straight type water pipe 3 into, return header 1 by welding point 4, metal hose 2, straight type water pipe 3
Top is equipped with asbestos mat.
The device uses on relatively closed space, by preventing hyperthermia radiation and flue dust, sets to reach protection top
The safety of standby and personnel etc..In production, circuit can generate high temperature furnace slag in smelting process, and a part can swim in molten steel
On, hot splashing slag under furnace is spilt into, some can be pumped into expansion chamber secondary precipitation by flue.Flue gas in furnace and other
Pernicious gas can also be reacted in expansion chamber vigorous combustion, and expansion chamber generates vortex temperature and is up to 1200 DEG C or so, the height after accumulation of heat
Wet body can arrive next procedure again and enter waste-heat recovery device.The main function of water-cooling cover plate is the whirlpool for preventing high-temperature flue gas from generating
The diffusion of violent scour and flue gas, slag dirt is flowed, in order to make upper seal prevent flue gas from spreading, asbestos mat is laid with above cover board.Weldering
Connector 4 has interchangeability, and the intermediate metal hose 2 that passes through connects, and dismounting is very convenient, in order to ensure the cooling of water pipe
Effect, the mode for taking adjacent water pipe direct-connected, abnormal conditions handle very simple.The present apparatus substitutes the screen that existing resistance to material is built
Lid is covered, service life greatly prolongs.
In addition to the implementation, the utility model can also have other embodiments；It is all to use equivalent replacement or equivalent change
The technical solution to be formed is changed, the protection scope of the requires of the utility model is all fallen within.
Claims (3)
1. a kind of water-cooling cover plate device, including into, return header (1), it is characterised in that: further include straight type water pipe (3), metal
Hose (2) and welding point (4), span close-packed arrays of the straight type water pipe (3) according to expansion chamber, the adjacent straight type water pipe
(3) ipsilateral closure, the upper side aperture connect the welding point (4) and are connected to by the metal hose (2), and the other side is set
It is identical and install ball valve additional to set mode, the reserved matching silk tooth in described ball valve one end is described to pass through the weldering into, return header (1)
Connector (4), the metal hose (2) are connected to the straight type water pipe (3) nearby, are equipped with above the straight type water pipe (3)
Asbestos mat.
2. water-cooling cover plate device according to claim 1, it is characterised in that: the width of the straight type water pipe (3) and sedimentation
Room is of same size, when the expansion chamber width increases, adds water-cooled beam in the expansion chamber middle position.
3. water-cooling cover plate device according to claim 1, it is characterised in that: the material of the straight type water pipe (3) is using special
With seamless steel tube for boiler 20G, specification is 89 × 11mm of φ.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201822208971.1U CN209326337U (en) | 2018-12-27 | 2018-12-27 | Water-cooling cover plate device |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201822208971.1U CN209326337U (en) | 2018-12-27 | 2018-12-27 | Water-cooling cover plate device |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| CN209326337U true CN209326337U (en) | 2019-08-30 |
Family
ID=67729049
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN201822208971.1U Active CN209326337U (en) | 2018-12-27 | 2018-12-27 | Water-cooling cover plate device |
Country Status (1)
| Country | Link |
|---|---|
| CN (1) | CN209326337U (en) |
Cited By (1)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN109520291A (en) * | 2018-12-27 | 2019-03-26 | 南京钢铁股份有限公司 | A kind of water-cooling cover plate device |
-
2018
- 2018-12-27 CN CN201822208971.1U patent/CN209326337U/en active Active
Cited By (1)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN109520291A (en) * | 2018-12-27 | 2019-03-26 | 南京钢铁股份有限公司 | A kind of water-cooling cover plate device |
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