CN207793318U - A kind of multiduty bottom-blowing of converter element - Google Patents
A kind of multiduty bottom-blowing of converter element Download PDFInfo
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- CN207793318U CN207793318U CN201721593967.0U CN201721593967U CN207793318U CN 207793318 U CN207793318 U CN 207793318U CN 201721593967 U CN201721593967 U CN 201721593967U CN 207793318 U CN207793318 U CN 207793318U
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Abstract
The utility model is related to converter steeling technology fields, provide a kind of multiduty bottom-blowing of converter element, including 1 Double-layer sleeve-type bottom blowing gun, several capillaries and refractory material, the Double-layer sleeve-type bottom blowing gun is arranged at the center of bottom-blowing of converter element, several capillaries are divided into 2 groups, it is arranged in using bottom-blowing of converter element central as on the different circumference in the center of circle, capillary makees pre-buried processing；In the early period of Converter labour, by Double-layer sleeve-type bottom blowing element for oxygen spray powder, greatly improve the metallurgical effect of converter, stove uses as a servant middle and later periods blocking Double-layer sleeve-type bottom blowing gun, change and is supplied by capillary, the bottom blowing stirring of converter can be provided to a certain extent, can also substantially extend the service life of converter.
Description
Technical field
The utility model is related to converter steeling technology field, more particularly to a kind of multiduty bottom-blowing of converter element.
Background technology
Bottom-blown converter is carried out using Double-layer sleeve-type bottom blowing element for oxygen spray powder, and melting bath stirring effect can be substantially strengthened,
Promote slag steel balance, reduces endpoint molten steel carbon oxygen product, improve the dephosphorization and desulfuration efficiency of converter, to which pneumatic steelmaking be greatly reduced
Steel technology, slag material consumption and the deoxygenated alloy consumption of technique.Although bottom-blown converter has splendid metallurgical effect,
It is can make for oxygen spray powder the erosion rate of bottom blowing element to accelerate using Double-layer sleeve-type bottom blowing element, the life of bottom is aobvious
Write and shorten, furnace bottom can only be forced to replace furnace bottom after corroding to a certain extent, or be built by laying bricks or stones again to converter, cause to safeguard with
Use cost dramatically increases.
The bottom blowing element that conventional converter uses is capillary type or circumferential weld tubular type bottom blowing element, such bottom blowing element
Be unable to injecting oxygen and solid powder, can only with lower bottom blowing intensity be blown inert gas, the metallurgical effect of conventional converter with
Using the bottom-blown converter of Double-layer sleeve-type bottom blowing element compared to there are larger gaps.But conventional converter using capillary type or
Metallurgical effect after circumferential weld tubular type bottom blowing element has preferable metallurgical effect still better than traditional pure top-blown converter, more important
Be the rational furnace bottom maintenance service of collocation, can substantially extend the life of bottom.
Utility model content
The purpose of this utility model is exactly to have overcome the deficiencies of the prior art and provide a kind of multiduty bottom-blowing of converter member
Part gives full play to Double-layer sleeve-type bottom blowing element and the respective advantage of capillary type bottom blowing element, can improve the metallurgy of converter
Effect can also extend the service life of converter, for converter efficiently, low cost smelt technical support is provided.
The utility model is achieved through the following technical solutions：
A kind of multiduty bottom-blowing of converter element, including 1 Double-layer sleeve-type bottom blowing gun, first group of capillary, second group
Capillary and refractory material；
The Double-layer sleeve-type bottom blowing gun is arranged at the center of the bottom-blowing of converter element；First group of capillary,
Two groups of capillaries include several capillaries；First group of capillary, second group of capillary are arranged in converter bottom
It blows on the different circumference that element central is the center of circle, second group of capillary is arranged in the periphery of first group of capillary, often
Group capillary is arranged along corresponding even circumferential；
Outlet, the first group hair concordant with the upper surface of bottom-blowing of converter element of the Double-layer sleeve-type bottom blowing gun
The outlet of tubule, second group of capillary is arranged at the lower section of bottom-blowing of converter element upper surface, and second group of capillary
The outlet of pipe is at a distance from bottom-blowing of converter element upper surface more than the outlet of first group of capillary and the converter bottom
Blow the distance of element upper surface；
The Double-layer sleeve-type bottom blowing gun, first group of capillary, second group of capillary are combined into entirety by refractory material.
Further, the outlet of first group of capillary is away from 100~300mm of upper surface of the bottom-blowing of converter element,
The outlet of second group of capillary is away from 200~500mm of upper surface of the bottom-blowing of converter element.
Further, first group of capillary, second group of every group of capillary include at least 6 capillaries.
Further, first group of capillary, second group of capillary at most occupy 3 ring circumference, and circumference spacing is little
In 30mm.
Further, the most inner periphery of first group of capillary away from the distance of the bottom-blowing of converter element central be 20~
80mm。
Further, first group of capillary includes 6 capillaries, is evenly arranged in away from the bottom-blowing of converter element
On the circumference of heart 30mm；Second group of capillary includes 6 capillaries, is evenly arranged in away from the bottom-blowing of converter element
On the circumference of heart 40mm；First group of capillary, distance of second group of capillary away from bottom-blowing of converter element upper surface point
It Wei not 200mm, 300mm.
Further, the bottom-blowing of converter element is used for 100 tons of converters, is arranged described in 6 pieces in 100 tons of converter bottoms
Bottom-blowing of converter element.
Further, first group of capillary includes 6 capillaries, is evenly arranged in away from the bottom-blowing of converter element
On the circumference of heart 30mm；Second group of capillary includes 12 capillaries, is divided into 3 groups, includes 4 capillaries per group,
It is evenly arranged in respectively on the circumference away from described bottom-blowing of converter element central 40mm, 50mm and 60mm；First group of capillary,
Distance of second group of capillary away from bottom-blowing of converter element upper surface is respectively 200mm, 300mm.
Further, the bottom-blowing of converter element is used for 300 tons of converters, is arranged described in 8 pieces in 300 tons of converter bottoms
Bottom-blowing of converter element.
The beneficial effects of the utility model are：Double-layer sleeve-type bottom blowing element and capillary type bottom blowing element are given full play to
Respective advantage plays the smelting of bottom-blown converter in the early period of Converter labour by Double-layer sleeve-type bottom blowing element for oxygen spray powder
Advantage greatly improves the metallurgical effect of converter；Stove uses as a servant middle and later periods blocking Double-layer sleeve-type bottom blowing gun, changes and is supplied by capillary, is sent out
The smelting advantage of conventional converter is waved, the bottom blowing stirring of converter can be provided to a certain extent, can also substantially extend converter
Service life.
Description of the drawings
Fig. 1 show the structural schematic diagram of the utility model embodiment 1.
Fig. 2 show the structural schematic diagram of the utility model embodiment 1.
Fig. 3 show the structural schematic diagram of the utility model embodiment 2.
Fig. 4 show the structural schematic diagram of the utility model embodiment 2.
Wherein：1- Double-layer sleeve-type bottom blowing guns；First group of capillary of 2-；Second group of capillary of 3-；4- refractory materials；5- turns
Stove bottom blowing element upper surface；Circumference where first group of capillary of 6-；Circumference where second group of capillary of 7-.
Specific implementation mode
The utility model specific embodiment is described in detail below in conjunction with specific attached drawing.It should be noted that following implementations
Example described in technical characteristic or technical characteristic combination be not construed as it is isolated, they can be combined with each other from
And reach superior technique effect.In the attached drawing of following embodiments, the identical label that each attached drawing occurs represents identical spy
Sign or component, can be applied in different embodiments.
As shown in Figs 1-4, a kind of multiduty bottom-blowing of converter element of the utility model, including 1 Double-layer sleeve-type bottom blowing
1, first group of rifle, 2, second groups of capillary capillary 3 and refractory material 4；The Double-layer sleeve-type bottom blowing gun 1 is arranged at described turn
The center of stove bottom blowing element；First group of capillary, 2, second groups of capillaries 3 include several capillaries；Described first group
2, second groups of capillaries 3 of capillary are arranged in using bottom-blowing of converter element central as on the different circumference in the center of circle, and described second
Group capillary 3 is arranged in the periphery of first group of capillary 2, and every group of capillary is arranged along corresponding even circumferential；The bilayer
Outlet, the first group capillary 2, second group hairs concordant with the upper surface of bottom-blowing of converter element of bushing type bottom blowing gun 1
The outlet of tubule 3 is arranged at the lower section of bottom-blowing of converter element upper surface, and outlet and the institute of second group of capillary 3
The distance for stating bottom-blowing of converter element upper surface is more than outlet and the bottom-blowing of converter element upper surface of first group of capillary 2
Distance；1, first group of the Double-layer sleeve-type bottom blowing gun, 2, second groups of capillary capillary 3 is combined into whole by refractory material 4
Body.
Preferably, the outlet of first group of capillary 2 is away from 100~300mm of upper surface of the bottom-blowing of converter element, institute
The outlet of second group of capillary 3 is stated away from 200~500mm of upper surface of the bottom-blowing of converter element.
Preferably, first group of capillary, 2, second groups of 3 every groups of capillaries include at least 6 capillaries.Described first group
2, second groups of capillaries 3 of capillary at most occupy 3 ring circumference, and circumference spacing is not more than 30mm.First group of capillary 2
Distance of the most inner periphery away from the bottom-blowing of converter element central be 20~80mm.
When using the utility model, in the early period of Converter labour, carried out for oxygen spray powder smelting by Double-layer sleeve-type bottom blowing gun 1
Refining, plays the metallurgical advantage of bottom-blown converter, and capillary 2,3 is in blocked state due to being embedded in refractory material；With stove
Age increases, and bottom-blowing of converter element shortens because of erosion, and the outlet of first group of capillary 2 is exposed and starts to ventilate, and provides alarm signal
Number, prompt user's bottom-blowing of converter element to corrode to first group of 2 place depth of capillary, at this time Double-layer sleeve-type bottom blowing gun 1 after
Continue for oxygen spray powder, first group of capillary 2 is also ventilated；It waits for that the outlet of second group of capillary 3 is exposed and starts to ventilate, provides alarm signal
Number, prompt user's bottom-blowing of converter element to corrode to second group of 3 place depth of capillary, at this time to Double-layer sleeve-type bottom blowing gun 1
Interior filling ramming mass, Double-layer sleeve-type bottom blowing gun 1 is blocked, and only relies on first group of capillary 2 and second group of capillary 3 is ventilated,
The metallurgical advantage of conventional converter is played, effective extension can be obtained in converter lining life.
Embodiment 1
The present embodiment applies 100 tons of converters of Mr. Yu steel mill, the furnace bottom of the converter to be disposed with the converter bottom of 6 pieces of the present embodiment
Element is blown, the concrete structure of bottom-blowing of converter element is as shown in Figure 1, 2.
Bottom-blowing of converter element includes 1 Double-layer sleeve-type bottom blowing gun 1,12 capillary and magnesia carbon refractory；Wherein,
The Double-layer sleeve-type bottom blowing gun 1 is arranged at the center of bottom-blowing of converter element, and 12 capillaries are divided into 2 groups, and every group includes 6 hairs
Tubule, first group of capillary 2 are evenly arranged on the circumference away from bottom-blowing of converter element center 30mm, and second group of capillary 3 is equal
Even be arranged in is blown away from bottom converter on the circumference of element center 40mm；The outlet of Double-layer sleeve-type bottom blowing gun 1 and bottom-blowing of converter member
The upper surface of part is concordant, the outlet of first group of capillary 2 200mm, second group of capillary 3 away from the upper surface of bottom-blowing of converter element
Outlet away from the upper surface of bottom-blowing of converter element 300mm.
By Double-layer sleeve-type bottom blowing gun 1 smelt for oxygen spray powder, play the smelting of bottom-blown converter the early period of Converter labour
Golden advantage, first group of capillary, 2, second groups of capillaries 3 are in blocked state due to being embedded in refractory material, converter at this time
Finishing slag (FeO) is only 15% or so, and endpoint molten steel [P] content is stably controlled within 0.012%；Furnace life reaches a 1000 stoves left side
When right, bottom-blowing of converter element shortens because of erosion, and the outlet of first group of capillary 2 is exposed and starts to ventilate, and provides alarm signal,
Prompt user's bottom blowing element has been corroded to first group of 2 place depth of capillary, and Double-layer sleeve-type bottom blowing gun 1 continues oxygen supply spray at this time
Powder, first group of capillary 2 are also ventilated；When furnace life reaches 1500 stoves or so, the outlet of second group of capillary 3 is exposed and starts to lead to
Gas provides alarm signal, and user's bottom blowing element is prompted to corrode to second group of 3 place depth of capillary, at this time to bilayer sleeve
Ramming mass is inserted in formula bottom blowing gun 1, Double-layer sleeve-type bottom blowing gun 1 is blocked, and is only relied on first and second group of capillary 2,3 and is ventilated,
The metallurgical advantage of conventional converter is played, converter finishing slag (FeO) reaches 22% or so at this time, and endpoint molten steel [P] content is can be controlled in
Within 0.018%, but effective extension can be obtained in converter lining life, reaches 8000 stoves or more.
Embodiment 2
For the present embodiment using in 300 tons of converters of Mr. Yu steel mill, the furnace bottom of the converter is disposed with the converter of 8 pieces of the present embodiment
The concrete structure of bottom blowing element, bottom-blowing of converter element is as shown in Figure 3,4, specific as follows：
Bottom-blowing of converter element includes 1 Double-layer sleeve-type bottom blowing gun 1,18 capillary and magnesia carbon refractory, wherein
The Double-layer sleeve-type bottom blowing gun 1 is arranged at the center of bottom-blowing of converter element, and 18 capillaries are divided into 2 groups, first group of capillary 2
Including 6 capillaries, are evenly arranged on the circumference away from bottom-blowing of converter element center 30mm, second group of capillary 3 includes 12
Branch capillary is arranged on the circumference away from bottom-blowing of converter element center 40mm, 50mm and 60mm, on each circumference uniformly
Arrange 4 capillaries；The outlet of Double-layer sleeve-type bottom blowing gun 1 is concordant with the upper surface of bottom-blowing of converter element, first group of capillary 2
Upper surface of the outlet away from bottom-blowing of converter element distance be 200mm, upper end of the outlet away from bottom blowing element of second group of capillary 3
The distance in face is 300mm.
By Double-layer sleeve-type bottom blowing gun 1 smelt for oxygen spray powder, play the smelting of bottom-blown converter the early period of Converter labour
Golden advantage, capillary 2,3 are in blocked state due to being embedded in refractory material, and converter finishing slag (FeO) is only 16% at this time
Left and right, endpoint molten steel [P] content are stably controlled within 0.015%；When furnace life reaches 800 stoves or so, bottom-blowing of converter element
It shortens because of erosion, the outlet of first group of capillary 2 is exposed and starts to ventilate, and provides alarm signal, prompts user's bottom-blowing of converter
Element has been corroded to first group of 2 place depth of capillary, and Double-layer sleeve-type bottom blowing gun 1 continues for oxygen spray powder at this time, first group of hair
Tubule 2 is also ventilated；When furnace life reaches 1200 stoves or so, the outlet of second group of capillary 3 is exposed and starts to ventilate, and provides alarm signal
Number, it prompts user's bottom blowing element to corrode to second group of 3 place depth of capillary, is filled out at this time into Double-layer sleeve-type bottom blowing gun 1
Enter ramming mass, Double-layer sleeve-type bottom blowing gun 1 blocked, only rely on the ventilation of capillary 2,3, plays the metallurgical advantage of conventional converter,
Converter finishing slag (FeO) reaches 24% or so at this time, and endpoint molten steel [P] content is can be controlled within 0.020%, but converter lining life
Effective extension can be obtained, reach 6000 stoves or more.
Although having been presented for several embodiments of the utility model herein, those skilled in the art should manage
Solution, in the case where not departing from the spirit of the present invention, can be changed the embodiments herein.Above-described embodiment only shows
Example property, it should not be using the embodiments herein as the restriction of the utility model interest field.
Claims (9)
1. a kind of multiduty bottom-blowing of converter element, which is characterized in that including 1 Double-layer sleeve-type bottom blowing gun, first group of capillary
Pipe, second group of capillary and refractory material；
The Double-layer sleeve-type bottom blowing gun is arranged at the center of the bottom-blowing of converter element；First group of capillary, second group
Capillary includes several capillaries；First group of capillary, second group of capillary are arranged in bottom-blowing of converter member
Part center is on the different circumference in the center of circle, and second group of capillary is arranged in the periphery of first group of capillary, every group of hair
Tubule is arranged along corresponding even circumferential；
Outlet, the first group capillary concordant with the upper surface of bottom-blowing of converter element of the Double-layer sleeve-type bottom blowing gun
The outlet of pipe, second group of capillary is arranged at the lower section of bottom-blowing of converter element upper surface, and second group of capillary
Outlet with bottom-blowing of converter element upper surface at a distance from more than first group of capillary outlet and the bottom-blowing of converter
The distance of element upper surface；
The Double-layer sleeve-type bottom blowing gun, first group of capillary, second group of capillary are combined into entirety by refractory material.
2. multiduty bottom-blowing of converter element as described in claim 1, which is characterized in that the outlet of first group of capillary
100 ~ 300mm of upper surface away from the bottom-blowing of converter element, the outlet of second group of capillary is away from the bottom-blowing of converter element
200 ~ 500mm of upper surface.
3. multiduty bottom-blowing of converter element as described in claim 1, which is characterized in that first group of capillary, second
Every group of group capillary includes at least 6 capillaries.
4. multiduty bottom-blowing of converter element as described in claim 1, which is characterized in that first group of capillary, second
Group capillary at most occupies 3 ring circumference, and circumference spacing is not more than 30mm.
5. multiduty bottom-blowing of converter element according to any one of claims 1-4, which is characterized in that first group of capillary
Distance of the most inner periphery of pipe away from the bottom-blowing of converter element central is 20 ~ 80mm.
6. multiduty bottom-blowing of converter element as described in claim 1, which is characterized in that first group of capillary includes 6
Branch capillary is evenly arranged on the circumference away from the bottom-blowing of converter element central 30mm；Second group of capillary includes 6
Capillary is evenly arranged on the circumference away from the bottom-blowing of converter element central 40mm；First group of capillary, second group of hair
Distance of the tubule away from bottom-blowing of converter element upper surface is respectively 200mm, 300mm.
7. multiduty bottom-blowing of converter element as claimed in claim 6, which is characterized in that the bottom-blowing of converter element is used for
100 tons of converters arrange 6 pieces of bottom-blowing of converter elements in 100 tons of converter bottoms.
8. multiduty bottom-blowing of converter element as described in claim 1, which is characterized in that first group of capillary includes 6
Branch capillary is evenly arranged on the circumference away from the bottom-blowing of converter element central 30mm；Second group of capillary includes 12
Branch capillary is divided into 3 groups, includes 4 capillaries per group, is evenly arranged in respectively away from the bottom-blowing of converter element central
On the circumference of 40mm, 50mm and 60mm；First group of capillary, second group of capillary are away from bottom-blowing of converter element upper surface
Distance be respectively 200mm, 300mm.
9. multiduty bottom-blowing of converter element as claimed in claim 8, which is characterized in that the bottom-blowing of converter element is used for
300 tons of converters arrange 8 pieces of bottom-blowing of converter elements in 300 tons of converter bottoms.
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| Application Number | Priority Date | Filing Date | Title |
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| CN201721593967.0U CN207793318U (en) | 2017-11-24 | 2017-11-24 | A kind of multiduty bottom-blowing of converter element |
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| CN201721593967.0U CN207793318U (en) | 2017-11-24 | 2017-11-24 | A kind of multiduty bottom-blowing of converter element |
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Cited By (1)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN113621753A (en) * | 2021-07-30 | 2021-11-09 | 中冶赛迪工程技术股份有限公司 | Device and method for direct current arc furnace bottom electrode and bottom blowing cooperative steelmaking |
-
2017
- 2017-11-24 CN CN201721593967.0U patent/CN207793318U/en active Active
Cited By (1)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN113621753A (en) * | 2021-07-30 | 2021-11-09 | 中冶赛迪工程技术股份有限公司 | Device and method for direct current arc furnace bottom electrode and bottom blowing cooperative steelmaking |
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