CN201819559U - Furnace lid of electric furnace - Google Patents
Furnace lid of electric furnace Download PDFInfo
- Publication number
- CN201819559U CN201819559U CN2010205663431U CN201020566343U CN201819559U CN 201819559 U CN201819559 U CN 201819559U CN 2010205663431 U CN2010205663431 U CN 2010205663431U CN 201020566343 U CN201020566343 U CN 201020566343U CN 201819559 U CN201819559 U CN 201819559U
- Authority
- CN
- China
- Prior art keywords
- cover plate
- water
- cooled
- furnace
- furnace lid
- 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.)
- Expired - Fee Related
Links
Images
Landscapes
- Furnace Housings, Linings, Walls, And Ceilings (AREA)
- Vertical, Hearth, Or Arc Furnaces (AREA)
Abstract
The utility model provides a furnace lid of an electric furnace. The furnace lid comprises a central cover plate (10) and a plurality of water cooled cover plates (20) positioned on the periphery of the central cover plate (10), and is characterized in that a flange connecting part (11) is arranged on the edge of the central cover plate (10), flange connecting parts (21) are arranged on the edge where the water cooled cover plates (20) are spliced with the central cover plate (10) and on the edge where the water cooled cover plates (20) are spliced with other water cooled cover plates, and the central cover plate and the water cooled cover plates are tightly connected through the flange connecting parts, and the water cooled cover plates are tightly connected with another through the flange connecting parts. The furnace lid of the electric furnace provided by the utility model has high strength, good sealing performance and light weight, and is convenient to maintain.
Description
Technical field
The utility model relates to the metallurgical electric furnace parts, particularly, relates to the bell of metallurgical electric furnace.
Background technology
In recent years, along with the development and the progress of science and technology of steel and iron industry, world's ferroalloy industry production is reclaimed and technical elements such as comprehensive utilization of resources all has and develops rapidly and break through in kind, smelting process, technical equipment, environmental protection, energy.Iron alloy electric furnace is also developing towards the direction that the person maximizes and sealed furnace is smelted
Selecting the totally enclosed type electric furnace mostly for use or transforming the opening stove as the totally enclosed type electric furnace by the large and medium-sized electric reduction furnace of electric furnace smelting high carbon ferromanganese, manganese-silicon and high carbon ferro-chrome.Using the closed electric furnace ferroalloy smelting can make product energy consumption reduce greatly.By reclaiming the coal gas that produces in the smelting process and sewage being handled.The coal gas (CO accounts for 60%-80%, calorific value 8-10KJ/m3 (mark attitude), the about 900-1200m3/t of gas production (mark attitude)) that reclaims is used for drying or is used for preheating and reduction ore, thereby melting electric consumption is descended, and the comprehensive utilization of realization secondary energy sources.Bell is the vitals of closed electric furnace.Its version has very big influence to every economic and technical norms of closed furnace.
According to investigation, the mechanism form of the bell of selecting for use during smelted in closed electric furnace ferroalloy product of the prior art mostly is hybrid combination.Hybrid bell adopts the water-cooled skeleton, and tie a knot therebetween refractory concrete or shop are with the water-cooled cover plate.Bell is a taper type, and the horizontal plane at middle part is equipped with electrode closed hole and material seal of tube hole, explosion-protection equipment is housed on each cover plate of bell and observes door.Being equiped with flue gas delivery line guiding furnace gas on the bell enters in dust pelletizing system or the atmosphere.The bell headroom is generally 1.5～1.7m.
The version of traditional furnace lid device as shown in Figure 1, last figure is the profile of bell among Fig. 1, figure below is the vertical view of bell, the structure of traditional bell is relatively exquisite, can effectively reclaim the energy that is produced in the electric furnace smelting process.But at present along with iron alloy electric furnace develops towards the direction that maximizes.The tradition bell manifests following shortcoming gradually in the utilization process:
1, equipment intensity is low.Because traditional bell adopts fixing water-cooled skeleton structure form, a part of weight main support of the total weight of body of heater cover plate and electrode self is on the water-cooled skeleton.And the maximization of iron alloy electric furnace certainly will cause the increasing of contour size of the unit(s) and the increasing of equipment self weight.And, making the furnace gas can unimpeded discharging and take out the electrode of folding section smoothly when guaranteeing to handle electrode accident in order to guarantee the head room in the bell, the water-cooled skeleton can not be done too big.Owing to the increase of cover plate and electrode weight, the load bearing stength of bell skeleton strengthens like this, and the bell skeleton can not arbitrarily strengthen, and certainly will cause the intensity of bell to reduce.
2, be difficult for drawing outward the electrode part of body of heater internal break.Because the large scale development of iron alloy electric furnace, electrode diameter strengthens, the corresponding increasing of utmost point heart fenestra.Relatively layout is tight certainly will to cause each element of bell top like this, when lead rupture, is difficult for drawing outward the space of the electrode part that enters the body of heater internal break like this.Moreover owing to adopt the fixedly form of skeleton of water-cooled, the height of bell can not be too high, when electrode diameter strengthens, certainly will cause obstruction to outer the drawing of fracture electrode.The method that large-scale closed electric furnace in the past solves this difficulty has two kinds usually: a kind of is directly electrode shell to be scraped, and draws outward again.The shortcoming that adopts this method is easy electrode and other furnace equipment to blowing up bell and not having to damage, and has certain potential safety hazard; Another kind method is exactly directly to take down a monoblock cover plate, and then draws the short electrode that splits outward, and making shortcoming in this way is to operate relatively difficulty, and time-consuming is long, and influence is produced.
Summary of the invention
The purpose of this utility model is to solve the above-mentioned shortcoming of prior art, and a kind of structure improved furnace lid is provided.
Furnace lid of the present utility model comprises central cover and is positioned at described central cover a plurality of water-cooled cover plates on every side, the edge of described central cover is provided with flange connector, described water-cooled cover plate with edge that described central cover engages on and with edge that other water-cooled cover plates engage on be equipped with flange connector, be fastenedly connected by flange connector between described central cover and the described water-cooled cover plate and between each described water-cooled cover plate, do not adopt the water-cooled skeleton support form of traditional bell.
In another embodiment, be provided with opening at least one in described a plurality of water-cooled cover plates, described furnace lid also comprises the opening cover plate that matches with the shape of described opening, and described opening cover plate is connected by bearing pin with the junction of described water-cooled cover plate.
The utility model bell adopts the version of turning on the crossbeam, and each flange connector is positioned at the top of described furnace lid.
The lower surface of described central cover and described water-cooled cover plate all has refractory masses.
When described furnace lid comprised the opening cover plate, the lower surface of described central cover, described water-cooled cover plate and described opening cover plate all was coated with refractory material.
Each flange connector is formed with connecting hole on the identical position.
Though furnace lid of the present utility model does not adopt the water-cooled skeleton support form of traditional bell, flange connector has constituted the crossbeam of bell, so the bell height is low, good seal performance and in light weight.And can adopt the opening cover plate, therefore in lead rupture, only need win local opening cover plate and can take out the electrode of fracture smoothly, this scheme is convenient to operation, and has significantly reduced the time of operation, and is therefore less to the influence of producing.
Description of drawings
Fig. 1 is the structural representation of furnace lid of the prior art.
Fig. 2 is the vertical view of the structure of furnace lid of the present utility model.
Fig. 3 is the flange connection diagram between central cover of the present utility model and the water-cooled cover plate.
The specific embodiment
Below in conjunction with accompanying drawing preferred implementation of the present utility model is elaborated.
Fig. 2 is the structural representation of furnace lid of the present utility model.As shown in the figure, furnace lid of the present utility model comprises central cover 10 and a plurality of water-cooled cover plate 20, wherein, the edge of central cover 10 is provided with flange connector, water-cooled cover plate 20 with edge that central cover 10 engages on and with edge that other water-cooled cover plates 20 engage on be equipped with flange connector, be fastenedly connected by flange connector between central cover 10 and the water-cooled cover plate 20 and between each water-cooled cover plate 20.Preferably, the lower surface of central cover 10 and water-cooled cover plate 20 all has refractory masses.
Although opening cover plate 30 has been shown among Fig. 2, furnace lid of the present utility model can save opening cover plate 30.
In one embodiment, at least one water-cooled cover plate 20 is provided with opening, states furnace lid and also comprises the opening cover plate 30 that matches with the shape of described opening, and opening cover plate 30 is connected by bolt with the junction of water-cooled cover plate 20.When electric furnace was worked, central cover 10, water-cooled cover plate 20 and opening cover plate 30 constituted complete electric furnace lid together, and the sealing furnace inner space.Opening that can be suitably big or small according to the size Selection of electrode is can successfully take out electrode.When in the stove during lead rupture, can turn on bolt and remove opening cover plate 30, with the electrode that takes out fracture or carry out other maintenance works.
Also can connect between opening cover plate 30 and the water-cooled cover plate 20 by bearing pin, the advantage that bearing pin connects is: when reinstalling opening cover plate 30, even there is deviation in the location between opening cover plate 30 and the water-cooled cover plate 20, also successfully connection opening cover plate 30 and water-cooled cover plate 20.Those skilled in the art can also know other the suitable connected modes between opening cover plate 30 and the water-cooled cover plate 20.
Although there is shown six water-cooled cover plates 20 and two opening cover plates 30, and the opening cover plate is positioned at the periphery of water-cooled cover plate, and those skilled in the art can select the quantity of water-cooled cover plate 20 and the quantity and the position of opening cover plate 30 according to actual needs.
Fig. 3 is the flange connection diagram between central cover 10 of the present utility model and the water-cooled cover plate 20.Preferably, as shown in Figure 3, each flange connector all is positioned at the top of bell, for example, at the edge of central cover 10 flange connector 11 is set, corresponding edge at water-cooled cover plate 20 is provided with flange connector 21, flange connector 11,21 is formed with connecting hole on the identical position, in the time will connecting water-cooled cover plate 20 and central cover 10, adjacent flange connector 21 and flange connector 11 are close together, use bolt to pass two adjacent flange connectors, adjacent flange connector is fixed together by the rotation nut.Flange connector between each water-cooled cover plate 20 also is positioned at the top of bell.By this fixedly connected mode, enlarged furnace inner space, be convenient to overhaul.
Preferably, the lower surface of central cover 10, water-cooled cover plate 20 and opening cover plate 30 all has refractory masses.Thereby make furnace lid of the present utility model under ultra-high temperature condition, to work.
Need to prove at last; the above only is preferred embodiment of the present utility model; rather than to the qualification of technical solutions of the utility model, any the utility model technical characterictic being equal to of being done replaced or corresponding improvement, still within protection domain of the present utility model.
Claims (7)
1. furnace lid, comprise central cover (10) and be positioned at described central cover (10) a plurality of water-cooled cover plates (20) on every side, it is characterized in that: the edge of described central cover (10) is provided with flange connector (11), described water-cooled cover plate (20) with edge that described central cover (10) engages on and with edge that other water-cooled cover plates engage on be equipped with flange connector (21), be fastenedly connected by flange connector between described central cover and the described water-cooled cover plate and between each described water-cooled cover plate.
2. furnace lid as claimed in claim 1, it is characterized in that: be provided with opening at least one in described a plurality of water-cooled cover plates (20), described furnace lid also comprises the opening cover plate (30) that matches with the shape of described opening, and described opening cover plate (30) is connected by bolt with the junction of described water-cooled cover plate (20).
3. furnace lid as claimed in claim 1, it is characterized in that: be provided with opening at least one in described a plurality of water-cooled cover plates (20), described furnace lid also comprises the opening cover plate (30) that matches with the shape of described opening, and described opening cover plate (30) is connected by bearing pin with the junction of described water-cooled cover plate (20).
4. furnace lid as claimed in claim 1 is characterized in that: each flange connector is positioned at the top of described furnace lid.
5. furnace lid as claimed in claim 1 is characterized in that: the lower surface of described central cover (10) and described water-cooled cover plate (20) all has refractory masses.
6. as claim 2 or 3 described furnace lids, it is characterized in that: the lower surface of described central cover (10), described water-cooled cover plate (20) and described opening cover plate (30) all has refractory masses.
7. furnace lid as claimed in claim 4 is characterized in that: each flange connector is formed with connecting hole on the identical position.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN2010205663431U CN201819559U (en) | 2010-09-28 | 2010-09-28 | Furnace lid of electric furnace |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN2010205663431U CN201819559U (en) | 2010-09-28 | 2010-09-28 | Furnace lid of electric furnace |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| CN201819559U true CN201819559U (en) | 2011-05-04 |
Family
ID=43917509
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN2010205663431U Expired - Fee Related CN201819559U (en) | 2010-09-28 | 2010-09-28 | Furnace lid of electric furnace |
Country Status (1)
| Country | Link |
|---|---|
| CN (1) | CN201819559U (en) |
Cited By (3)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN102967139A (en) * | 2012-10-31 | 2013-03-13 | 西安合元冶金设备工程有限责任公司 | Conical hood mechanism of titanium slag furnace |
| CN108613554A (en) * | 2013-12-20 | 2018-10-02 | 魁北克9282-3087公司（加钛顾问公司） | Bell for metallurgical furnace |
| CN109883203A (en) * | 2019-03-28 | 2019-06-14 | 江苏德龙镍业有限公司 | Mineral hot furnace water cooled cover |
-
2010
- 2010-09-28 CN CN2010205663431U patent/CN201819559U/en not_active Expired - Fee Related
Cited By (4)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN102967139A (en) * | 2012-10-31 | 2013-03-13 | 西安合元冶金设备工程有限责任公司 | Conical hood mechanism of titanium slag furnace |
| CN108613554A (en) * | 2013-12-20 | 2018-10-02 | 魁北克9282-3087公司（加钛顾问公司） | Bell for metallurgical furnace |
| CN108613554B (en) * | 2013-12-20 | 2020-02-07 | 魁北克9282-3087公司（加钛顾问公司） | Furnace cover for metallurgical furnace |
| CN109883203A (en) * | 2019-03-28 | 2019-06-14 | 江苏德龙镍业有限公司 | Mineral hot furnace water cooled cover |
Similar Documents
| Publication | Publication Date | Title |
|---|---|---|
| CN201819559U (en) | Furnace lid of electric furnace | |
| CN111876795B (en) | Method for recovering electrolyte in rare earth molten salt slag | |
| CN207864102U (en) | The part of wind-driven generator thickeies tower device | |
| CN203359745U (en) | Hot blast stove refractory vertical transport device | |
| CN103498054B (en) | Hot charging blast furnace slag carbonization electric furnace and equipment technology thereof | |
| CN203768431U (en) | Electroslag remelting furnace | |
| CN205067396U (en) | Hot modified test device of refining slag | |
| CN201532107U (en) | Partition structure in rotary hearth furnace | |
| CN201598308U (en) | Crawler-type steel scrap preheating conveying device | |
| CN108977605A (en) | A kind of online modularization method for dismounting of super-huge hot-air stove shell | |
| CN211233948U (en) | Argon blowing type electric furnace cover | |
| CN203582893U (en) | Smelting feeding device of vacuum induction furnace | |
| CN208964987U (en) | The heat treatment tooling of nuclear power safety injection tank end socket | |
| CN206721254U (en) | Refining furnace electrode anti-dropout clamping device | |
| CN204944168U (en) | Casting smelting intermediate frequency furnace | |
| CN201455242U (en) | Movable mouth for liquid iron bottle | |
| CN204944169U (en) | Casting smelting intermediate frequency furnace increase part | |
| CN201583109U (en) | Flue gas waste heat multi-pipe drying heating furnace | |
| CN201660652U (en) | Water seal structure between hearth and furnace wall of rotary hearth furnace | |
| CN202770176U (en) | Electrode air-entrapping and connecting device of submerged arc furnace | |
| CN209217970U (en) | Easy-to-mount Split type three-phase bridge philcotron | |
| CN210741051U (en) | Novel composite furnace shell | |
| CN203124670U (en) | Feeding equipment of upward-guide continuous casting process for preparation of copper magnesium alloy line blank | |
| CN204397177U (en) | A kind of electrolytic cell body founds the welding equipment to weld seam | |
| CN104864717B (en) | Elevation stand type primary water seal device of trolley of sintering machine |
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 |
Granted publication date: 20110504 Termination date: 20160928 |
|
| CF01 | Termination of patent right due to non-payment of annual fee |