CN106544466A - Spiral converter oxygen gun - Google Patents
Spiral converter oxygen gun Download PDFInfo
- Publication number
- CN106544466A CN106544466A CN201610885436.2A CN201610885436A CN106544466A CN 106544466 A CN106544466 A CN 106544466A CN 201610885436 A CN201610885436 A CN 201610885436A CN 106544466 A CN106544466 A CN 106544466A
- Authority
- CN
- China
- Prior art keywords
- tube
- outer tube
- helical blade
- pipe
- gap
- 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.)
- Pending
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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
Abstract
The invention discloses a kind of spiral converter oxygen gun, including the body of a gun, the body of a gun includes inner tube, middle tube and outer tube, and helical blade is surrounded between the middle tube and outer tube, and the runner between middle tube and outer tube is separated into spiral flow channel by the helical blade.The present invention can make to cooling water flow out of water channel using the design of flight and form spiralling shape, increase flow distance of the cooling water in the oxygen rifle body of a gun, increase flow rate of water flow, enhance cooling effect of the cooling water to outer tube, greatly improve the life-span of outer tube, so as to improve the service life of whole oxygen rifle.
Description
Technical field
The present invention relates to a kind of converter oxygen gun, particularly relates to a kind of spiral converter oxygen gun.
Background technology
Converter oxygen gun is made up of shower nozzle, the body of a gun and three part of tail structure, and shower nozzle is typically processed by forging red copper,
Available casting method manufacture, the body of a gun are made up of three layers of sleeve pipe that seamless steel pipe makes.Tail structure ensure oxygen pipeline, water inlet and
Delivery hose is connected with oxygen rifle, while ensureing the sealing between three-layer pipe.
The body of a gun structure of converter oxygen gun is roughly divided into inner tube, middle tube, outer tube, is passed through oxygen to molten steel in inner tube
Blown, be that the cooling water of converter oxygen gun flows into water channel between inner tube and middle tube, be cold between middle tube and outer tube
But the outflow water channel of water, is exactly the working environment of converter outside outer tube.
Existing converter oxygen gun mainly includes two kinds of straight barrel type oxygen rifle and oxygen lance with conical.
As shown in figure 1, the inner tube 1 of straight barrel type converter oxygen gun, middle tube 2, outer tube 3 are straight pipe type, its structure letter
It is single, it is easy to manufacture, low cost, but in smelting process, as slugging is bad, splash etc. causes oxygen rifle dry slag, it is difficult to process.For
This, have developed oxygen lance with conical.
Oxygen lance with conical, also known as taper oxygen rifle, which is tapered near the bottom body of a gun of shower nozzle, and upper coarse and lower fine, slag is difficult to stick
Firmly, slag of the splash with bolt, along the taper body of a gun, voluntarily slips in stove.Traditional oxygen lance with conical only has one section of taper equal
Even cone segments, in order to ensure that conical pipe is unlikely to long, for different parts viscous thickness of steel slag difference, and progressively develop
The new Cone oxygen rifle of many tapers (including straight length) is gone out.
Du Jianliang exists《Steep-taper oxygen lance with conical is researched and developed and the application under the conditions of semi-steel making》(iron and steel, 2009,44 (7):
A kind of new steep-taper oxygen lance with conical oxygen lance with conical is given in 39-42), its outer layer conical pipe designs long 6000mm, oxygen rifle mouth
Internal diameter be 600mm, the maximum outside diameter of conical pipe is designed to 426mm, and the taper of conical pipe is 52 °, and lower diameter amount of contraction is
181mm.To avoid the viscous rifle of indivedual heats highly more than 6000mm, the top of conical pipe has added that the 426mm's of 1000mm length is thick again
Straight tube, then be connected with gun body by the reducer pipe of 350mm length.In order to ensure the water-cooled intensity and backwater speed of oxygen rifle, with oxygen rifle
The corresponding oxygen rifle middle tube of outer layer conical pipe is also designed to conical pipe, thick straight tube and reducer pipe.Also indicate that in text：Steep-taper is bored
Body oxygen rifle heating surface area is big, and heat intensity is high, and the flow of cooling water will improve 10%～20%, backwater flow velocity to reach 7m/s with
On.Uniform to ensure conical section cooling, the gap of oxygen rifle backwater channel circumferential weld must assure that unanimously, therefore, oxygen rifle middle tube
Also will be using the conical pipe consistent with outer tube taper.
Chinese patent ZL200620089500.8 proposes a kind of many taper pyramidal oxygen guns, thick by outer layer conical pipe, outer layer
Straight tube, outer layer reducer pipe, oxygen rifle outer tube pass sequentially through welding and are connected as a single entity；Middle level conical pipe, the thick straight tube in middle level, middle level reducing
Pipe, oxygen rifle middle tube pass sequentially through welding and are connected as a single entity；It is characterized in that the outer layer conical pipe below the thick straight tube of outer layer is by multistage
The conical pipe of different tapers is welded, and the taper of every section of conical pipe changes from small to big successively from top to bottom.The patent is directed to oxygen rifle
Body of a gun different parts viscous thickness of steel slag difference, using the conical pipe of different tapers.In order that conical pipe is not long,
The top of conical pipe major part, devises one section longer of thick straight tube again, solves the problems, such as the viscous rifle of oxygen rifle well.In the patent
Point out：" in order to ensure the water-cooled intensity of oxygen lance with conical, the oxygen rifle middle level of conical section is also designed to taper." as shown in Fig. 2 should
Many taper pyramidal oxygen guns disclosed in patent, its outer tube include multiple pipeline sections of different tapers, middle tube 2 different pipe sections with
Corresponding outer tube 3 keeps same taper, and inner tube 1 is the constant long straight tube of caliber.
Either straight barrel type oxygen rifle or oxygen lance with conical, the outer tube working environment of converter oxygen gun are extremely severe, and temperature can
1300 DEG C are reached, viscous rifle and corrosion is added so as to becomes the most short position of life-span of oxygen lance.When converter oxygen gun (particularly taper oxygen
Rifle) outer tube when reaching service life and needing to change, due to accuracy of manufacture reason, in order to ensure the same of middle tube and outer tube
Heart degree and between gap uniformity, it is necessary to middle tube is also changed, i.e., a set of middle tube and outer tube are changed simultaneously, and now in
Layer pipe is likely to also not arrive the replacing life-span, causes waste.
The cooling effect of outer tube affects very big to the working life of oxygen rifle, improves cooling effect and can dramatically increase oxygen rifle
Working life.At present, the cooling effect of outer tube is improved mainly using increase flow velocity and raising flow stability two ways
To realize.In the case where cooling water inflow is certain, increases flow velocity and be accomplished by reducing current cross-sectional area, i.e., reduction outer tube is with
Gap between layer pipe.However, gap length be limited by manufacturing process can not possibly be made it is too little (because gap width is difficult to holding one
Cause)；And small―gap suture is crossed so that outer tube is difficult to be individually replaced.And improve flow stability typically by keep outer tube, in
Gap width between layer pipe is constant realizing, is illustrated in aforementioned documents.
The content of the invention
It is an object of the invention to provide a kind of spiral converter oxygen gun of outer tube good cooling results.
For achieving the above object, the spiral converter oxygen gun designed by the present invention, including the body of a gun, the body of a gun include internal layer
Pipe, middle tube and outer tube, are surrounded with helical blade between the middle tube and outer tube, the helical blade is by middle level
Runner between pipe and outer tube is separated into spiral flow channel.Spiral flow channel increased cooling water in middle tube with outer tube
Flow distance, when the constancy of volume between discharge, oxygen rifle mesonexine pipe and outer tube, flow distance is bigger, and current are horizontal
Sectional area is less, and flow rate of water flow is bigger, therefore enhances cooling effect of the cooling water to outer tube.
Preferably, it is between two adjacent rings blade during helical pitch s, i.e. single-wire helix of the outer vortex of the helical blade
The inside diameter of distance, no more than outer tube, further reduces water flow section product, increases flow velocity, improve outer tube
Cooling effect.Further, helical pitch s is the 25%～75% of the inside diameter of the outer tube, when the inner side of outer tube
Its mean value calculation in the helical pitch is taken during a diameter of changing value.When helical pitch s is less, between the pipe of middle tube and outer tube between
Gap suitably can increase, and now remain to keep higher cooling water flow velocity, and between increase pipe, gap is conducive to manufacturing the body of a gun and changes outer
Layer pipe.
Preferably, between the pipe of helical pitch s and the middle tube and outer tube, gap d is bigger into negative correlativing relation, i.e. d
When, s is less；D gets over hour, and s is bigger；When the gap of middle tube and outer tube is changing value, between pipe, the value of gap d is one
Mean gap in helical pitch.
Further, between helical pitch s of the outer vortex of the helical blade and the pipe, gap d is inversely proportional to, i.e., s × d is
Definite value.The purpose of the design is to keep the area of section of helical flow of water passage constant, to improve flow stability.
Alternatively, the outer ledge of the helical blade is tightly fixed on the medial wall of outer tube, the helical blade
Inside edge be tightly fixed on the lateral wall of middle tube.
Alternatively, the inside edge of the helical blade is tightly fixed on the lateral wall of middle tube, the helical blade
Outer ledge and the medial wall of outer tube between keep width fix gap e.
Alternatively, the outer ledge of the helical blade is tightly fixed on the medial wall of outer tube, the helical blade
Inside edge and the lateral wall of middle tube between keep width fix gap e.
Preferably, the outer tube is the piecewise combination of tapered pipe or tapered pipe and zero draft straight tube, the middle level
Manage as zero draft straight tube, the inside edge of the helical blade is tightly fixed on the lateral wall of the middle tube, the spiral
The gap e of constant distance is kept between the outer ledge and outer tube of blade.Middle tube is breached existing using zero draft straight tube
In taper oxygen rifle, middle tube must be all the restriction of taper tube with outer tube, reduce the manufacturing cost of oxygen rifle.
Preferably, the span of the gap e be middle tube and outer tube pipe between gap d 5%～20%.More than
The purpose of three scheme retention gap e is, in the outer tube for more renewing, it is not necessary to change together with middle tube, while also not
Thermal stress is accumulated easily.
The invention has the beneficial effects as follows：Can make to cooling water flow out of water channel using the design of flight and form spiralling shape
Shape, increases flow distance of the cooling water in the oxygen rifle body of a gun, increases flow rate of water flow, enhance cooling of the cooling water to outer tube
Effect, greatly improves the life-span of outer tube, so as to improve the service life of whole oxygen rifle.The device is applied to single taper
Traditional taper oxygen rifle, the novel conical oxygen rifle of many tapers, be equally applicable for the three-layered node of straight barrel type oxygen rifle and other forms
The oxygen rifle of structure.
Description of the drawings
Fig. 1 is the structural representation of existing straight barrel type oxygen rifle.
Fig. 2 is the structural representation of existing taper oxygen rifle.
Fig. 3 is the perspective structure schematic diagram of the spiral converter oxygen gun designed by the present invention.
Fig. 4 crosses the structural representation of the section on plane of its axis for the spiral converter oxygen gun edge in Fig. 3.
Fig. 5 is the enlarged diagram at A in Fig. 4.
Wherein：Inner tube 1, middle tube 2, outer tube 3, helical blade 4, the body of a gun 5, oxygen gun sprayer 6
Specific embodiment
The present invention is described in further detail with specific embodiment below in conjunction with the accompanying drawings.
As Fig. 1～2 show converter oxygen gun of the prior art, its structure has been made specifically in background section
It is bright, repeat no more in this.
As seen in figures 3-5, the spiral converter oxygen gun designed by the present invention, spiral converter oxygen gun, the oxygen rifle are taper
Oxygen rifle, main body include oxygen gun sprayer 6, the body of a gun 5 and Caudal connectors (adopt existing structure, figure not shown in).In the body of a gun 5 includes
Layer pipe 1, middle tube 2 and outer tube 3, are surrounded with helical blade 4 between middle tube 2 and outer tube 3, helical blade is by middle level
Runner between pipe and outer tube is separated into spiral flow channel.Helical pitch s of the outer vortex of helical blade 4 is outside corresponding position
50% of average diameter on the inside of layer pipe 3.Between helical pitch s and pipe, the integration of gap d is optional position quilt in definite value, i.e. helical flow path
The area for crossing the cross section of fluid channel of the section on plane of the axis of screw is definite value.
Outer tube 3 is tapered pipe, and middle tube 2 is zero draft straight tube, during the inside edge of helical blade 4 is weldingly fixed on
On the lateral wall of layer pipe 2, the gap e of constant distance between the medial wall of the outer ledge and outer tube 3 of helical blade 4, is kept.
The value of gap e be middle tube 2 and outer tube 3 pipe between gap d 10%.
Claims (10)
1. a kind of spiral converter oxygen gun, including the body of a gun (5), the body of a gun (5) include inner tube (1), middle tube (2) and outer layer
Pipe (3), is surrounded with helical blade (4) between the middle tube (2) and outer tube (3), the helical blade (4) is by middle level
Runner between pipe (2) and outer tube (3) is separated into spiral flow channel.
2. spiral converter oxygen gun according to claim 1, it is characterised in that：The outer vortex of the helical blade (4)
Helical pitch s be not more than outer tube (3) inside diameter.
3. spiral converter oxygen gun according to claim 2, it is characterised in that：Helical pitch s is the outer tube (3)
The 25%～75% of inside diameter.
4. spiral converter oxygen gun according to claim 1, it is characterised in that：The outer vortex of the helical blade (4)
Helical pitch s and the middle tube (2) and outer tube (3) pipe between gap d into negative correlativing relation, i.e., when d is bigger, s is less；D gets over
Hour, s is bigger；When the gap of middle tube and outer tube is changing value, between the pipe, gap d takes average in a helical pitch
Value.
5. spiral converter oxygen gun according to claim 4, it is characterised in that：Between helical pitch s and the pipe gap d into
Inverse ratio, i.e. s × d are definite value.
6. spiral converter oxygen gun according to claim 1, it is characterised in that：The outer ledge of the helical blade (4)
It is tightly fixed on the medial wall of outer tube (3), the inside edge of the helical blade (4) is tightly fixed to middle tube (2)
On lateral wall.
7. spiral converter oxygen gun according to claim 1, it is characterised in that：The inside edge of the helical blade (4)
Be tightly fixed on the lateral wall of middle tube (2), the outer ledge of the helical blade (4) and the medial wall of outer tube (3) it
Between keep width fix gap e.
8. spiral converter oxygen gun according to claim 1, it is characterised in that：The outer ledge of the helical blade (4)
Be tightly fixed on the medial wall of outer tube (3), the inside edge of the helical blade (4) and the lateral wall of middle tube (2) it
Between keep width fix gap e.
9. spiral converter oxygen gun according to claim 1, it is characterised in that：The outer tube (3) is tapered pipe, or
The piecewise combination of the tapered pipe of person and zero draft straight tube；The middle tube (2) is zero draft straight tube, the helical blade (4)
Inside edge is tightly fixed on the lateral wall of the middle tube (2), the outer ledge and outer tube of the helical blade (4)
(3) the gap e of constant distance is kept between.
10. the spiral converter oxygen gun according to any one of claim 2～5,7～9, it is characterised in that：The gap e
Span be middle tube (2) and outer tube (3) pipe between gap d 5%～20%.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201610885436.2A CN106544466A (en) | 2016-10-11 | 2016-10-11 | Spiral converter oxygen gun |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201610885436.2A CN106544466A (en) | 2016-10-11 | 2016-10-11 | Spiral converter oxygen gun |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| CN106544466A true CN106544466A (en) | 2017-03-29 |
Family
ID=58369026
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN201610885436.2A Pending CN106544466A (en) | 2016-10-11 | 2016-10-11 | Spiral converter oxygen gun |
Country Status (1)
| Country | Link |
|---|---|
| CN (1) | CN106544466A (en) |
Cited By (1)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN114887427A (en) * | 2022-06-24 | 2022-08-12 | 郑州米孚环保科技有限公司 | Spray dust removal equipment |
Citations (4)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| US3350080A (en) * | 1963-06-22 | 1967-10-31 | Manton Douglas Norman | Oxygen lance with helical cooling coil |
| GB1110256A (en) * | 1964-06-26 | 1968-04-18 | British Oxygen Co Ltd | Improvements in and relating to furnace lances |
| CN2234957Y (en) * | 1995-07-18 | 1996-09-11 | 本溪钢铁公司 | Pyramid oxygen lance |
| CN201224738Y (en) * | 2008-07-29 | 2009-04-22 | 鞍山市鑫源内衬金属陶瓷科技有限公司 | Big cone oxygen lance special for steel smelting |
-
2016
- 2016-10-11 CN CN201610885436.2A patent/CN106544466A/en active Pending
Patent Citations (4)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| US3350080A (en) * | 1963-06-22 | 1967-10-31 | Manton Douglas Norman | Oxygen lance with helical cooling coil |
| GB1110256A (en) * | 1964-06-26 | 1968-04-18 | British Oxygen Co Ltd | Improvements in and relating to furnace lances |
| CN2234957Y (en) * | 1995-07-18 | 1996-09-11 | 本溪钢铁公司 | Pyramid oxygen lance |
| CN201224738Y (en) * | 2008-07-29 | 2009-04-22 | 鞍山市鑫源内衬金属陶瓷科技有限公司 | Big cone oxygen lance special for steel smelting |
Cited By (2)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN114887427A (en) * | 2022-06-24 | 2022-08-12 | 郑州米孚环保科技有限公司 | Spray dust removal equipment |
| CN114887427B (en) * | 2022-06-24 | 2024-01-23 | 郑州米孚环保科技有限公司 | Spraying dust collecting equipment |
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Legal Events
| Date | Code | Title | Description |
|---|---|---|---|
| PB01 | Publication | ||
| PB01 | Publication | ||
| SE01 | Entry into force of request for substantive examination | ||
| SE01 | Entry into force of request for substantive examination | ||
| TA01 | Transfer of patent application right |
Effective date of registration: 20170630 Address after: 430083, Hubei Wuhan Qingshan District Factory No. 2 Gate joint stock company organs Applicant after: Wuhan iron and Steel Company Limited Address before: 430083 Qingshan District, Hubei, Wuhan Applicant before: WUHAN IRON AND STEEL CORPORATION |
|
| RJ01 | Rejection of invention patent application after publication |
Application publication date: 20170329 |
|
| RJ01 | Rejection of invention patent application after publication |