CN109161637A - Cyclone oxygen rifle - Google Patents
Cyclone oxygen rifle Download PDFInfo
- Publication number
- CN109161637A CN109161637A CN201810767819.9A CN201810767819A CN109161637A CN 109161637 A CN109161637 A CN 109161637A CN 201810767819 A CN201810767819 A CN 201810767819A CN 109161637 A CN109161637 A CN 109161637A
- Authority
- CN
- China
- Prior art keywords
- shell
- under
- welded
- rotary fluid
- air inlet
- 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.)
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Classifications
-
- C—CHEMISTRY; METALLURGY
- C21—METALLURGY OF IRON
- C21C—PROCESSING OF PIG-IRON, e.g. REFINING, MANUFACTURE OF WROUGHT-IRON OR STEEL; TREATMENT IN MOLTEN STATE OF FERROUS ALLOYS
- C21C5/00—Manufacture of carbon-steel, e.g. plain mild steel, medium carbon steel or cast steel or stainless steel
- C21C5/28—Manufacture of steel in the converter
- C21C5/42—Constructional features of converters
- C21C5/46—Details or accessories
- C21C5/4606—Lances or injectors
-
- C—CHEMISTRY; METALLURGY
- C21—METALLURGY OF IRON
- C21C—PROCESSING OF PIG-IRON, e.g. REFINING, MANUFACTURE OF WROUGHT-IRON OR STEEL; TREATMENT IN MOLTEN STATE OF FERROUS ALLOYS
- C21C5/00—Manufacture of carbon-steel, e.g. plain mild steel, medium carbon steel or cast steel or stainless steel
- C21C5/52—Manufacture of steel in electric furnaces
-
- Y—GENERAL TAGGING OF NEW TECHNOLOGICAL DEVELOPMENTS; GENERAL TAGGING OF CROSS-SECTIONAL TECHNOLOGIES SPANNING OVER SEVERAL SECTIONS OF THE IPC; TECHNICAL SUBJECTS COVERED BY FORMER USPC CROSS-REFERENCE ART COLLECTIONS [XRACs] AND DIGESTS
- Y02—TECHNOLOGIES OR APPLICATIONS FOR MITIGATION OR ADAPTATION AGAINST CLIMATE CHANGE
- Y02P—CLIMATE CHANGE MITIGATION TECHNOLOGIES IN THE PRODUCTION OR PROCESSING OF GOODS
- Y02P10/00—Technologies related to metal processing
- Y02P10/20—Recycling
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- Engineering & Computer Science (AREA)
- Chemical & Material Sciences (AREA)
- Manufacturing & Machinery (AREA)
- Materials Engineering (AREA)
- Metallurgy (AREA)
- Organic Chemistry (AREA)
- Cyclones (AREA)
- Carbon Steel Or Casting Steel Manufacturing (AREA)
Abstract
The present invention discloses a kind of cyclone oxygen rifle.It includes streamlined spray head, several rows on inner arc rotary fluid and its heavy wall, every row several tangential air inlet holes, outer arc conflux body, bullet fairing, on outer tube, under outer tube, on middle pipe, under middle pipe, in inner tube, under inner tube, far infrared temperature measurement instrument, element spectrum analysis instrument, rangefinder be mounted in the inner cavity that inner arc conflux body and bullet baffle are formed, it is 3 ° ~ 20 ° that the center line and shaft centre line of tangential air inlet hole, which form forward angle,.It is an advantage of the invention that live in real time monitor metallurgical process in top-blown converter and steel-smelting electric furnace furnace, it is ensured that realize safe and efficient, high-quality, energy-saving and emission-reduction targets.
Description
Technical field
The present invention relates to a kind of oxygen rifles applied to oxygen top-blown converter and steel-smelting electric furnace.More particularly to a kind of cyclone oxygen
Rifle, the air-flow of injection is with the metal bath surface in cyclone motion morphology directive furnace.
Background technique
Steel-making is exactly that carbon in oxygen stream and molten iron generates strong oxidation of coal and reacts, carbon in removal molten iron and other
Impurity improves molten iron temperature, is that molten iron is transformed into molten steel.The oxygen rifle applied at present is porous oxygen rifle, the motion morphology of oxygen stream
For linear type air-flow.
The defect of porous oxygen rifle is as follows:
1. when one timing of exit cross-sectional area of oxygen rifle, the porous gross area than the overall circumference of single hole and hole wall is much greater.Than
If four holes are one times of single hole, hole count is more, and multiple difference is bigger.Therefore porous bigger than the frictional force of single hole, consume the dynamic of air-flow
It can be more.
2. the face area of porous nozzle is big, the big washbowl of shape picture, without the element of any air foil.To in furnace
The thermal current of rising and the resistance of contrajet are big, easily cause scaling loss to oxygen rifle.
3. turbulent flow must be generated between porous air-flow, the kinetic energy of air-flow, while the iron liquid and slag liquid of easily absorption splashing are consumed,
It is the major reason of scaling loss spray head.
Although also reducing impact strength and depth simultaneously 4. porous air-flow increases impact area to metal bath surface.
Oxygen stream impact less than furnace bottom and its surrounding produce in apparent " dead zone ", some units are exactly using top and bottom complex blowing technique
In the presence of the evidence in " dead zone ".The chemical reaction for thereby resulting in the carbon and oxygen in molten metal is uneven up and down, non-uniform temperature；Top
Overreact, metallic element scaling loss are excessive.And bottom blowing process production is complicated, easily causes floor drain accident, and is in safety in production
Risk factor.
5. due to the physical-chemical reaction for being filled with various complexity in furnace, during which caused by high-temperature smoke, make people extremely
The present can not probe into the truth of reaction in furnace.Now the picture theory of situation is all manually to draw in all parsing furnaces, it is even more impossible to
The state in furnace is grasped in real time.
It is retrieved, has entitled " the strength cyclone hair of Patent No. ZL201010535538.4. of the applicant's invention only
Raw device " has the performance for generating cyclone.
I is inspired the parsing of in nature cyclone motion morphology；After being stirred to the water in water vat with wooden stick,
Form the research of spout motion morphology；To the reason of the advanced streamlined theory of the 5th generation fighter plane head and aft swept wings
Solution, forms design and scheme of the invention.
Summary of the invention
It is an object of the invention to prior art there are aiming at the problem that, providing a kind of is oxygen top-blown converter and steel-making electricity
The cyclone oxygen rifle of furnace, the cyclone air-flow high speed rotation for ejecting oxygen rifle is advanced, with its powerful impact force, penetrating force
With the effect directive metal bath surface of removing, achieve the purpose that safe and efficient, high-quality, energy-saving and emission-reduction steel-making.
In order to achieve the above object, present inventive concept is: a kind of oxygen rifle, comprising: streamlined spray head, inner arc rotary fluid and its
Several rows on heavy wall, several tangent air inlets of every row, outer arc conflux body, bullet baffle, under outer tube, on outer tube, middle pipe
Under, on middle pipe, under inner tube, in inner tube, far infrared temperature measurement instrument, element spectrum analysis instrument, rangefinder.
Specific structure mode is as follows: welded under the streamline portion of streamlined spray head and outer tube, then with welded on outer tube, streamlined
Outside spray head taper hole with inner arc rotary fluid screw thread and couple；；It is welded under inner arc rotary fluid cylindrical portion and middle pipe；Inner arc rotary fluid circle
It is welded under tapering and inner tube；Under inner tube with welded in inner tube；An inner arc rotary fluid and bullet is fixedly mounted in its inner cavity formed
Baffle；Inner arc rotary fluid and outer arc conflux body, the mutual thread connection far infrared temperature measurement instrument of bullet baffle, element spectrum analysis
Instrument and range finder are mounted in the inner cavity that outer arc conflux body and bullet baffle are formed, and form an entirety.
Several tangential air inlet holes of the every row of several rows, centerline hole and axial line are opened up on the heavy wall of interior hook fluid
Forward angle is 3 ° ~ 20 °.
It is formed by the inner wall in inner tube and under inner tube with the extrados of bullet baffle and the cone face of inner arc rotary fluid
Channel makes oxygen stream can enter tangential air inlet hole.
The space that oxygen stream is constituted by the extrados that tangential hole enters inner arc rotary fluid intrados and outer arc conflux body,
Formed cyclone oxygen stream and after the taper hole directive furnace inner metal liquid face through streamlined spray head.
Cooling water is formed by the water outlet of inner wall and lower section on the outer wall and middle pipe under inner tube and in inner tube and under middle pipe
The channel of entrance.
Outer wall under middle pipe and on middle pipe is formed with the inner wall under streamlined spray head streamline portion's inner wall and outer tube and on outer tube
The channel of draining.
Far infrared temperature measurement instrument, element spectrum analysis instrument and rangefinder are mounted on what outer arc conflux body and bullet baffle were formed
In inner cavity, by the centre bore of outer arc conflux body, whole real time monitoring is carried out to situation is smelted in furnace.
Conceived according to foregoing invention, the present invention adopts the following technical scheme: a kind of cyclone oxygen rifle, including a upper end have
The gun body that oxygen air inlet and cooling water intake-outlet and lower end have four layers of shell of streamlined spray head to constitute, it is characterised in that institute
State four layers of shell structure are as follows:
1) sandwich layer shell by bullet baffle connect an inner arc rotary fluid structure include: streamlined spray head streamline portion with
Welded under outer tube, then with welded on outer tube；The inner arc of tangential air inlet hole is equipped with outside the internal taper hole of streamlined spray head with heavy wall
Rotary fluid thread connection；It is welded under inner arc rotary fluid cylindrical portion and middle pipe；It is welded under inner arc rotary fluid cylindrical portion and inner tube；Inner tube
It is lower with welded in inner tube, the inner cavity one inner arc rotary fluid of fixed installation and bullet baffle formed；Inner arc rotary fluid with
Outer arc conflux body；Bullet baffle is mutually by being threadedly coupled.Under middle pipe with the cylindrical base of inner arc rotary fluid weld, then with inner tube
It constitutes, an inner arc conflux body is fixedly mounted in inner cavity；
2) inner shell by an inner tube with welded under an inner tube, form oxygen stream between inner shell and sandwich layer shell
Logical, upper end of inner tube connects oxygen air inlet；
3) middle layer shell is constituted under a middle pipe by welding on pipe in one, forms feed water flow between middle layer shell and inner shell
Road, the upper end connect water inlet, and lower end leads to return water runner；
4) outer shell is welded constitute under an outer tube thereon, outside by welding under an outer tube with the streamline portion of streamlined spray head
Return water runner is formed between layer shell and middle layer shell, the upper end connects water outlet；
5) oxygen outlet is streamlined spray head；Including a jet pipe, port connects with the lower port of inner arc rotary fluid thereon, under
End by being welded under the streamline portion of streamline spray head and outer tube, with welded on outer tube.
The inner arc rotary fluid heavy wall of the cyclone oxygen rifle is equipped with several rows, and every row several tangential air inlet
Hole, it is 3 ° ~ 20 ° that the center line and shaft centre line of the air inlet, which form forward angle,.Inner arc conflux body and the bullet water conservancy diversion bodily form
At inner cavity in, far infrared temperature measurement instrument, element spectrum analysis instrument and rangefinder are installed.
Cyclone oxygen rifle operation mechanism:
Oxygen flows through the intrados of the tangential inner arc rotary fluid in channel described in [0014], in the outer of its intrados and outer arc conflux body
In cavity between cambered surface, the tangentially angle direction rotary advanced movement of centerline hole and axial line.Because of each air-flow
The linear velocity of particle is equal, but the radius of present position differs widely.Therefore radius gets over the angular speed of general goal air-flow
Smaller with axial velocity, pressure is bigger, conversely, the angular speed of the smaller place's air-flow of radius and axial velocity are bigger, pressure is smaller.Shape
At the barometric gradient for being directed toward the center of circle, pressure direction is all to center and front, while sweeping away in intrados, each air-flow matter
Point is tangentially also all directed to center and front.Therefore the frictional force of air-flow and internal and external cambered surface is intended to zero, and noise substantially reduces.
This strand of powerful bundles of cyclone that gathers has special impact force, penetrating force and the work of removing by bellmouth is spouting
With.
Cyclone oxygen stream is injected in the molten metal operation mechanism caused on furnace inner metal liquid:
Cyclone oxygen stream high speed rotation is ejected into metal bath surface, is almost horizontally oriented with the torsion that its rotation generates and is directly cut
The tension and resistance for opening metal bath surface, are deep into oxygen stream easily in molten metal, drive the liquid level of molten metal rotation
Quickly form funnelform whirlpool.Water after the stirring of its spout effect picture in water vat, goes out on the funnel-form metal bath surface of rotation
Archimedes's helical line now without several acceleration for being directed toward the center of circle.Meanwhile fierceness occurs for the carbon in oxygen element and molten metal
Oxidation reaction, and generate a large amount of carbon dioxide and CO gas and huge thermal energy and kinetic energy to continue rotary impact molten
Molten metal inside pond enables it move along the direction of rotation that oxygen stream is assigned, and spreads into downward funnelform impact model
It encloses.To oppress the molten metal rotation diffusion of furnace bottom area, and rising is rotated about along furnace wall, is further lifted funnel-form liquid
The height in face presses to center with higher potential energy again, while further revolving with the new huge thermal energy and kinetic energy constantly generated
Turn to press to center, then oppress the molten metal rotation diffusion of furnace bottom area, continues to rotate about rising along furnace wall, and so on follow
Ring movement, making molten metal, temperature and ingredient tend to uniform up and down.Efficiently avoid the generation of contrajet and expulsion events.
When launching various solid alloys to molten bath, it will rotate with molten metal, constantly melt.Equably disperse exists
In molten metal.
Slag is generated in molten metal, due to relatively light, is easy to float to liquid level in the molten metal of rotation, and can only be
Funnelform ullage surrounding rotation floating, will not be stirred in molten metal again, be particularly conducive to the purification of molten metal.
Lose the carbon dioxide of kinetic energy, CO gas more easily rotates about rising along furnace wall and is discharged outside furnace.
The far infrared temperature measurement instrument in inner cavity that installation outer arc conflux body and bullet baffle are formed, element spectrum analysis instrument,
Rangefinder can coordinated flow line head and molten metal at any time optimum distance, and injection oxygen stream intensity；Grasp molten metal
The variation of temperature and chemical component determines final temperature and aim carbon data.Realize the real-time factual report of in-furnace information.
The present invention compared with the prior art, has following obvious substantive distinguishing features and remarkable advantage outstanding: this
Invention makes oxygen rifle air-flow high speed rotation advance, with its powerful impact force, penetrating force and the effect of removing directive metal bath surface
Reach safe and efficient, high-quality, energy-saving and emission-reduction steel-making.
Detailed description of the invention
Invention is further described in detail with specific implementation method with reference to the accompanying drawing.
Fig. 1 is cross-sectional view of the structure of the invention.
Fig. 2 is the tangential air inlet hole A-A sectional view on inner arc rotary fluid wall thickness of the present invention.
Fig. 3 is the tangential air inlet hole B-B sectional view on inner arc rotary fluid wall thickness of the present invention.
Specific embodiment
Details are as follows for the preferred embodiment of the present invention combination attached drawing:
Embodiment one: referring to Fig. 1 ~ Fig. 3, there are oxygen air inlet and cooling water Inlet and outlet water in this cyclone oxygen rifle, including a upper end
The gun body that four layers of shell of mouth and the aerobic gas blowout mouth in lower end is constituted, it is characterised in that four layers of shell structure are as follows:
1) sandwich layer shell by bullet baffle connect an inner arc rotary fluid structure include: streamlined spray head streamline portion with
Welded under outer tube, then with welded on outer tube；The inner arc of tangential air inlet hole is equipped with outside the internal taper hole of streamlined spray head with heavy wall
Rotary fluid thread connection；It is welded under middle pipe with the cylindrical base of inner arc rotary fluid, in inner arc rotary fluid and bullet baffle composition
Chamber installs outer arc conflux body；
2) inner shell by an inner tube with welded under an inner tube, form oxygen stream between inner shell and sandwich layer shell
Road, upper end of inner tube connect oxygen air inlet；
3) middle layer shell is constituted under a middle pipe by welding on pipe in one, forms feed water flow between middle layer shell and inner shell
Road, the upper end connect water inlet, and lower end leads to return water runner；
4) outer shell is constituted under an outer tube by welding on an outer tube, and return water stream is formed between outer shell and middle layer shell
Road, the upper end connect water outlet；
5) oxygen spout is streamlined spray head；Including a conical nozzle, port is connect with the lower port of inner arc rotary fluid thereon,
Its lower end under streamlined shell and outer tube by welding.
Embodiment two: the present embodiment is basically the same as the first embodiment, and special feature is as follows: the cyclone oxygen rifle it is interior
Hook fluid heavy wall is equipped with several rows, several tangential air inlet hole of every row, and the center line and axis center of the air inlet are linear
It is 3 ° ~ 20 ° at forward angle.In the inner cavity that outer arc conflux body and bullet baffle are formed, far infrared temperature measurement instrument, member are installed
Plain spectroanalysis instrument and rangefinder.
It is found that the present invention is a kind of cyclone oxygen rifle from attached drawing 1, structure includes the streamline portion of streamlined spray head 1 and outer
Pipe lower 3 is welded, then is welded on outer tube 8；Internal taper hole outside and 5 thread connection of inner arc rotary fluid of streamlined spray head 1；It is interior
Hook fluid 5 and outer arc conflux body 6, the mutual thread connection of bullet baffle 7；Under middle pipe 2 with the cylindrical base of inner arc rotary fluid 5
Welding, then welded in inner tube 9；4 weld with the cone column portion of inner arc rotary fluid 5 under inner tube, then with 10 welding in inner tube；Far infrared
Temperature measurer 11, element spectrum analysis instrument 12, rangefinder 13 are mounted in the inner cavity that inner arc conflux body 6 and bullet baffle 7 are formed,
Form a kind of cyclone oxygen rifle.
From in attached drawing 1,2,3 it is found that opened up several rows on the heavy wall of interior hook fluid 5, every row several tangentially into
Air holes 14,15, the centre bore and axis angle of air inlet hole are 3 ° ~ 20 °.
Claims (3)
1. a kind of cyclone oxygen rifle, including a upper end have oxygen air inlet and cooling water intake-outlet and lower end to have streamlined spray
The gun body that four layers of shell of head (1) is constituted, it is characterised in that four layers of shell structure are as follows:
1) it includes: streamlined spray head (1) that sandwich layer shell, which connects inner arc rotary fluid (5) structure by a bullet baffle (7),
Streamline portion and outer tube under (3) weld, then welded with (8) on outer tube；It is equipped with outside the taper hole of streamlined spray head (1) with heavy wall
Inner arc rotary fluid (5) thread connection of tangential air inlet hole；(2) are welded under inner arc rotary fluid (5) cylindrical portion and middle pipe；Inner arc eddy flow
(4) are welded under body (5) conus portion and inner tube；(4) are welded with (10) in inner tube under inner tube；Its inner cavity formed is fixedly mounted one
Inner arc rotary fluid (5) and bullet baffle (7)；Inner arc rotary fluid (5) and outer arc conflux body (6), bullet baffle (7) mutual spiral shell
Line connection；Inner shell is welded by (10) in an inner tube and (4) under an inner tube, is formed between inner shell and sandwich layer shell
Oxygen runner, (10) upper end connects oxygen air inlet in inner tube；
2) middle layer shell is constituted by being managed under one middle pipe of upper (9) welding (2) in one, is formed between middle layer shell and inner shell
Water inlet flow channel, the upper end connect water inlet, and lower end leads to return water runner；
3) outer shell is welded by the streamline portion that (3) under an outer tube and streamline form spray head (1), is welded on an outer tube thereon
(8) it constitutes, forms return water runner between outer shell and middle layer shell, the upper end connects water outlet；
4) oxygen outlet is streamlined spray head (1)；Including a jet pipe, the lower port phase of port and inner arc rotary fluid (5) thereon
It connects, lower end is welded by (3) under the streamline portion of streamlined spray head (1) and outer tube, then is welded with (8) on shell.
2. cyclone oxygen rifle according to claim 1, it is characterised in that: the outer arc rotary fluid (5) is if heavy wall is equipped with
Dry row, several tangential air inlet hole (14,15) of every row, center line and the shaft centre line formation of the air inlet (14,15) are forward
Angle be 3 ° ~ 20 °.
3. according to cyclone oxygen rifle described in claim 1, it is characterised in that: the inner arc conflux body (6) and bullet baffle
(7) in the inner cavity formed, far infrared temperature measurement instrument (11), element spectrum analysis instrument (12) and rangefinder (13) are installed.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201810767819.9A CN109161637B (en) | 2018-07-13 | 2018-07-13 | Tornado oxygen gun |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201810767819.9A CN109161637B (en) | 2018-07-13 | 2018-07-13 | Tornado oxygen gun |
Publications (2)
| Publication Number | Publication Date |
|---|---|
| CN109161637A true CN109161637A (en) | 2019-01-08 |
| CN109161637B CN109161637B (en) | 2020-08-04 |
Family
ID=64897792
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN201810767819.9A Active CN109161637B (en) | 2018-07-13 | 2018-07-13 | Tornado oxygen gun |
Country Status (1)
| Country | Link |
|---|---|
| CN (1) | CN109161637B (en) |
Citations (4)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| US3112194A (en) * | 1960-10-19 | 1963-11-26 | Union Carbide Corp | Molten bath treating method and apparatus |
| US4928605A (en) * | 1985-11-15 | 1990-05-29 | Nippon Sanso Kabushiki Kaisha | Oxygen heater, hot oxygen lance having an oxygen heater and pulverized solid fuel burner |
| CN1141422A (en) * | 1995-07-27 | 1997-01-29 | 陈朝云 | Multi-stage cyclone generator |
| CN201858659U (en) * | 2010-11-09 | 2011-06-08 | 陈朝云 | Strong tornado generator |
-
2018
- 2018-07-13 CN CN201810767819.9A patent/CN109161637B/en active Active
Patent Citations (4)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| US3112194A (en) * | 1960-10-19 | 1963-11-26 | Union Carbide Corp | Molten bath treating method and apparatus |
| US4928605A (en) * | 1985-11-15 | 1990-05-29 | Nippon Sanso Kabushiki Kaisha | Oxygen heater, hot oxygen lance having an oxygen heater and pulverized solid fuel burner |
| CN1141422A (en) * | 1995-07-27 | 1997-01-29 | 陈朝云 | Multi-stage cyclone generator |
| CN201858659U (en) * | 2010-11-09 | 2011-06-08 | 陈朝云 | Strong tornado generator |
Also Published As
| Publication number | Publication date |
|---|---|
| CN109161637B (en) | 2020-08-04 |
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