CN2628536Y - Water-cooled carbon oxygen gun for improved metallurgical electric arc furnace - Google Patents
Water-cooled carbon oxygen gun for improved metallurgical electric arc furnace Download PDFInfo
- Publication number
- CN2628536Y CN2628536Y CN 03259290 CN03259290U CN2628536Y CN 2628536 Y CN2628536 Y CN 2628536Y CN 03259290 CN03259290 CN 03259290 CN 03259290 U CN03259290 U CN 03259290U CN 2628536 Y CN2628536 Y CN 2628536Y
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- China
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- carbon
- cantilever
- oxygen gun
- electric arc
- oxygen
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- Expired - Fee Related
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Abstract
The utility model relates to a spray gun device of an electric arc furnace of metallurgy for oxygen blast and carbon spray, in particular to the amelioration to a cantilever of the spray gun. The utility model is characterized in that the cantilever of the supporting carbon and oxygen lance is a flexible or stretchable fission cantilever. A stretchable fission cantilever adapted in the utility model greatly enlarges the swing angel of the carbon and oxygen lance in the furnace to about 3 to 4 times of the swing angel of the original integrated cantilever, thereby reducing the dead angel of the oxygen blast in the furnace. The device returns to the original position when stopping. A small area of an operation platform before the furnace is taken when the cantilever is folded. The stretchable cantilever can round barriers such as a dust helmet column in front of a furnace gate, which enlarges the use range of the carbon and oxygen lance. The utility model carbon and oxygen lance can adapt various electric arc furnaces of metallurgy.
Description
Technical field
Utility model relates to a kind of metallurgical electric arc furnace with oxygen blast, spray carbon spray gun device, especially to the improvement of spray gun cantilever.
Background technology
Metallurgical electric arc furnace oxygen blast, spray carbon water-cooled carbon-oxygen gun, usually be installed in fire door left side or right side, and the existing various carbon-oxygen guns that use, mostly be by monoblock type (non-song is stretched) cantilever, changeing supporting by wandering is installed on the pedestal of carbon-oxygen gun, during use, be that circular swing motion is done in the center of circle, carbon-oxygen gun is sent in the stove with this pedestal.As the Chinese patent 98250044 disclosed oxygen blast of metallurgical electric furnace arrangement for producing steel, the spray carbon carbon-oxygen guns of being used for, be exactly this structure formation, carbon-oxygen gun is bearing in monoblock type cantilever one end by the rotary head of wandering, and the other end of monoblock type cantilever changes bearing by wandering and is installed on the pedestal.During work, carbon-oxygen gun is a radius with the monoblock type jib-length, is that movement in a curve is done in the center of circle with the carbon-oxygen gun pedestal, moves to the working position by zero position, and carbon-oxygen gun is sent in the electric arc furnace; The carbon-oxygen gun bearing connects the drag link mechanism driving by four simultaneously, and carbon-oxygen gun is swung in electric arc furnace.This monoblock type cantilever design carbon-oxygen gun mainly has the following disadvantages: 1, carbon-oxygen gun swings and is subjected to bigger restriction, can cause certain injection dead angle, has had a strong impact on the result of use of carbon-oxygen gun; 2, since each steel mill's stove gate and service platform apart from having nothing in common with each other, the monoblock type cantilever is done circular motion according to the carbon-oxygen gun pedestal carbon-oxygen gun is sent in the stove, can produce certain eccentricity because of the different distance of stove gate and service platform, distance is big more, the eccentricity that produces is big more, causes the rifle body to advance the fire door difficulty; Shorten cantilever, can cause the carbon-oxygen gun pendulum angle limited again, increase and spray the dead angle, more difficult carbon-oxygen gun is adjusted to the position that requires; 3, before the electric arc furnace the big petticoat pipe column of dedusting is set usually, the monoblock type cantilever need be walked around column, has more limited carbon-oxygen gun pendulum angle in stove.
For walking around dust excluding hood column before the fire door, also have cantilever is made stationary curved arm configuration such as Fig. 1, but produce two problems so again, the one, excessive because of carbon-oxygen gun bearing and carbon-oxygen gun pedestal eccentric distance, when rifle was advanced in swing, the rifle head advanced some difficulty of fire door; The 2nd, when the stationary curved cantilever returned to original A position, the area that takies the flushing and casting platform was excessive, unfavorable workman's steel-making operation.
Besides, common little tonnage electric arc furnace is because various reasons are reserved installation carbon-oxygen gun position, and flushing and casting platform area is generally less, monoblock type cantilever design carbon-oxygen gun, because of floor space and eccentric distance big, be difficult to install and use, limited the popularization of carbon-oxygen gun technology.
Summary of the invention
The purpose of utility model is to overcome the deficiency of above-mentioned prior art, provides a kind of carbon-oxygen gun pendulum angle in stove big, does not have the oxygen blast dead angle substantially, and it is little to regain floor space, can adapt to the metallurgical electric arc furnace water-cooled carbon-oxygen gun of various steel-making environment.
The utility model purpose realizes that main the improvement is with the monoblock type cantilever, change scalable or flexible song into and stretch the split cantilever, thereby make carbon-oxygen gun advance, retreat, about, swing up and down more flexibly, overcome the deficiency that former monoblock type cantilever brings.Specifically, the metallurgical electric arc furnace water-cooled carbon-oxygen gun of utility model comprises supporting extension arms and the carbon-oxygen gun that is arranged on cantilever one end, it is characterized in that said supporting extension arms is scalable or the bendable warpage is stretched the split cantilever.
The stretching structure of the said cantilever of utility model, being about to whole cantilever design is two sections or above Collapsible structure, it can be various mechanical-stretching modes, as cylinder sleeve type, housing-case formula, chute-type etc.; Said bending structure, being about to cantilever design is two sections or above turning joint connection, forms bent form, wherein connects the bending forearm of rifle body, better accounts for the 1/3-1/2 of full arm; Its flexible or bending location can be adopted such as modes such as hydraulic ram, chute location, and wherein a kind of employing hydraulic ram that is preferably both can have been located, and also can stretch operation as the forearm song.
Utility model is because with the monoblock type cantilever, change scalable or bent split song into and stretch cantilever, can not only make cantilever is that circular swing motion is done in the center of circle with the carbon-oxygen gun pedestal, simultaneously can also stretch motion by the song of cantilever, make carbon-oxygen gun at the horizontal translational motion of fire door previous crops, especially bending type cantilever, can make the forearm of supporting carbon-oxygen gun seat do swing about 60-100 °, increased the pendulum angle of carbon-oxygen gun in stove greatly, more former monoblock type cantilevered swing angle can increase about 3-4 doubly, reduce the oxygen blast dead angle of carbon-oxygen gun in stove, helped shortening the melting waste steel time, improved the molten steel stirring capacity; And carbon-oxygen gun is when stopping oxygen blast and spray carbon and withdraw from electric arc furnace and get back to the original position, and cantilever can be packed up, and makes carbon-oxygen gun take flushing and casting platform area and reduces greatly, thereby guaranteed that carbon-oxygen gun is in the operation of the optimum position of stove gate.Besides, the cantilever that can bent stretch can be walked around preceding obstacle of fire door such as dust excluding hood column, enlarge the carbon-oxygen gun use range, can solve the electric arc furnace fire door apart from big petticoat pipe basis column when far away, the installation question of carbon-oxygen gun, adaptability is strong, can adapt to various metallurgical electric arc furnace occasions and use; The cantilever that can bent stretch also can be adjusted the relative position of carbon-oxygen gun on the electric arc furnace doorway when the eccentricity of carbon-oxygen gun pedestal and carbon-oxygen gun bearing is excessive, remedy the excessive problem of eccentric distance.The utility model carbon-oxygen gun adopts can stretch cantilever by song, is not subjected to the influence of service platform area, is not subjected to stove gate and the excessive influence of carbon-oxygen gun seat eccentric distance, can make the water-cooled carbon-oxygen gun can maximumly bring into play its usefulness.
Below in conjunction with two specific embodiments, further specify utility model structure and working process, but the embodiment concrete structure not the qualification to utility model.
Description of drawings
Fig. 1 is a prior art plan structure synoptic diagram.
Fig. 2 is embodiment 1 a plan structure synoptic diagram.
Fig. 3 is embodiment 2 plan structure synoptic diagram.
1-electric arc furnace among the figure, the 2-carbon-oxygen gun, the 3-movement locus, the 4-cantilever, the 5-pedestal, 6-dust excluding hood column, 7-four connects pull bar driving mechanism, 8-hydraulic ram.
Embodiment
Embodiment 1; Referring to Fig. 2, the metallurgical electric arc furnace water-cooled carbon-oxygen gun of utility model, comprise that changeing support movable by wandering is arranged on cantilever 4 on the pedestal 5, be arranged on the water-cooled carbon-oxygen gun 2 that cantilever is not held with changeing to support by wandering, the cantilever 4 of said supporting carbon-oxygen gun is divided into forearm 4.1 and postbrachium 4.2, both connect by articulated manner, form the cantilever that the bendable warpage is stretched.When not working, the bending cantilever is packed up, and carbon-oxygen gun is in the A position; During work, cantilever has changeed on the one hand, bends cantilever on the other hand and releases stretching, extension, makes carbon-oxygen gun be in work B position state.By the bending angle of bending cantilever 4.1 with postbrachium 4.2, carbon-oxygen gun is released or indentation, at the horizontal translational motion of fire door previous crops, the bending forearm promotes and the location by the hydraulic stem 8 of arm before and after connecting.Adjust cantilevered swing and bending angle, and the carbon-oxygen gun luffing angle, can make carbon-oxygen gun in stove, 1 be the α angle and change.
Embodiment 2: referring to Fig. 3, as embodiment 1, wherein cantilever 4 changes box telescopic structure into, by flexible forearm 4.1 with accept cantilever 4.2 and form.By flexible cantilever 4.1 stretching in accepting cantilever 4.2, adjust carbon-oxygen gun and release or indentation, make carbon-oxygen gun at the horizontal translational motion of fire door previous crops.
The song of utility model cantilever is stretched, and can also realize that these unsubstantialities are changed all true novel protected scope of using by other mechanical system commonly used.
Claims (4)
1, a kind of metallurgical electric arc furnace water-cooled carbon-oxygen gun comprises supporting extension arms and the carbon-oxygen gun that is arranged on cantilever one end, it is characterized in that said supporting extension arms is scalable or the bendable warpage is stretched the split cantilever.
2, according to the described metallurgical electric arc furnace water-cooled carbon-oxygen gun of claim 1, it is characterized in that said song stretch be operating as connect before and after the hydraulic ram of arm.
3,, it is characterized in that it is bending structure that said song is stretched cantilever according to claim 1 or 2 described metallurgical electric arc furnace water-cooled carbon-oxygen guns.
4,, it is characterized in that said bending forearm is the 1/3-1/2 of whole cantilever according to the described metallurgical electric arc furnace water-cooled carbon-oxygen gun of claim 3.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN 03259290 CN2628536Y (en) | 2003-07-01 | 2003-07-01 | Water-cooled carbon oxygen gun for improved metallurgical electric arc furnace |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN 03259290 CN2628536Y (en) | 2003-07-01 | 2003-07-01 | Water-cooled carbon oxygen gun for improved metallurgical electric arc furnace |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| CN2628536Y true CN2628536Y (en) | 2004-07-28 |
Family
ID=34254803
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN 03259290 Expired - Fee Related CN2628536Y (en) | 2003-07-01 | 2003-07-01 | Water-cooled carbon oxygen gun for improved metallurgical electric arc furnace |
Country Status (1)
| Country | Link |
|---|---|
| CN (1) | CN2628536Y (en) |
Cited By (3)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN105567997A (en) * | 2015-12-31 | 2016-05-11 | 派罗特克（广西南宁）高温材料有限公司 | Work device of moving type in-furnace refining equipment |
| CN105838844A (en) * | 2016-06-06 | 2016-08-10 | 中冶赛迪工程技术股份有限公司 | Furnace wall gun swinging device |
| CN112344748A (en) * | 2019-08-07 | 2021-02-09 | 中国瑞林工程技术股份有限公司 | Method for smelting by using side-blown smelting furnace |
-
2003
- 2003-07-01 CN CN 03259290 patent/CN2628536Y/en not_active Expired - Fee Related
Cited By (3)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN105567997A (en) * | 2015-12-31 | 2016-05-11 | 派罗特克（广西南宁）高温材料有限公司 | Work device of moving type in-furnace refining equipment |
| CN105838844A (en) * | 2016-06-06 | 2016-08-10 | 中冶赛迪工程技术股份有限公司 | Furnace wall gun swinging device |
| CN112344748A (en) * | 2019-08-07 | 2021-02-09 | 中国瑞林工程技术股份有限公司 | Method for smelting by using side-blown smelting furnace |
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Legal Events
| Date | Code | Title | Description |
|---|---|---|---|
| C14 | Grant of patent or utility model | ||
| GR01 | Patent grant | ||
| C17 | Cessation of patent right | ||
| CF01 | Termination of patent right due to non-payment of annual fee |
Granted publication date: 20040728 |