CN209260127U - A kind of no-welding-seam oxygen lance with conical - Google Patents
A kind of no-welding-seam oxygen lance with conical Download PDFInfo
- Publication number
- CN209260127U CN209260127U CN201822218822.3U CN201822218822U CN209260127U CN 209260127 U CN209260127 U CN 209260127U CN 201822218822 U CN201822218822 U CN 201822218822U CN 209260127 U CN209260127 U CN 209260127U
- Authority
- CN
- China
- Prior art keywords
- taper pipe
- flow tube
- total flow
- pipe
- outer taper
- 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.)
- Active
Links
Landscapes
- Carbon Steel Or Casting Steel Manufacturing (AREA)
Abstract
The utility model discloses a kind of no-welding-seam oxygen lance with conical, belong to oxygen rifle technical field, it is insufficient to solve oxygen rifle structural strength in the prior art, the problem of being easy to produce damage and leakage, the utility model includes outer Taper Pipe, the middle Taper Pipe being installed in outer Taper Pipe and the logical oxygen inner tube being installed in middle Taper Pipe, the outer Taper Pipe is connected with spray head, outer Taper Pipe is structure as a whole with spray head, the outer Taper Pipe is connected with total flow tube, water inlet pipe and outlet pipe are installed in total flow tube, the end of total flow tube is connected with first flange disk, pass through a pair of of second flange disk connection between outer Taper Pipe and total flow tube, the second flange disk is integral flange, gasket seal is installed between two second flange disks, the periphery of second flange disk is covered with nitrogen pressurising cover.The utility model has the advantages that intensity height, no-welding-seam, good airproof performance.
Description
Technical field
The utility model belongs to oxygen rifle technical field, and in particular to a kind of no-welding-seam oxygen lance with conical.
Background technique
Oxygen rifle is to be blown into high pressure, high purity degree oxygen in converter above metal bath with hypersonic velocity, and have high pressure water
The tubular equipment of cooling protection system.It is called spray gun.It is the important equipment of top-blown oxygen steelmaking, is in oxygen converter steelmaking
One of major process unit, performance characteristic directly influence metallurgical effect and duration of blast, to influence the quality of steel
And yield.
Oxygen rifle will have firm metal structure and strong water-cooling system, to guarantee its resistant against high temperatures, antiscour erosion and support
Anti-vibration.Oxygen rifle is applied to open hearth steelmaking furnace roof oxygen blast at first, and nineteen fifty-two Linz-Donawitz process comes out, and oxygen rifle becomes it
Key equipment.Hereafter, the application range of oxygen rifle is expanded to the fields such as electric arc furnaces and ladle refining furnace again；Function is also from single spray
Oxygen blast gas develop to and can be blown slag making pulvis, the compound oxygen rifle for the pulvis that burns and shunt with second-time burning function or
Double-current method multilayer oxygen rifle.
Since oxygen rifle works and its inner sealing has a cooling water in converter, leakage is absolutely not for oxygen rifle
Allow, if cooling water is revealed in converter will generate serious consequence, therefore the leakproofness and reliability of oxygen rifle structure
It is particularly important, in the prior art to prevent weld seam after welding from can melt and split under high temperature environment, has used no-welding-seam cone
Pipe, but since its entire length is longer, when absorbing impact, stress loading irrational distribution is easy to produce plastic deformation, when it
After material itself reaches fatigue limit, direct damage is also suffered from, eventually leads to leakage and failure, and this is needed in industrial production
It strictly to avoid.
Utility model content
The purpose of this utility model is that:
It is easy to produce damage and leakage to solve the problem of that oxygen rifle structural strength in the prior art is insufficient, one kind is provided
No-welding-seam oxygen lance with conical.
The technical solution adopted in the utility model is as follows:
A kind of no-welding-seam oxygen lance with conical including outer Taper Pipe, the middle Taper Pipe being installed in outer Taper Pipe and is installed in middle Taper Pipe
Logical oxygen inner tube, which is characterized in that the outer Taper Pipe is connected with spray head, and outer Taper Pipe is structure as a whole with spray head, the outer Taper Pipe
It is connected with total flow tube, water inlet pipe and outlet pipe are installed in total flow tube, the end of total flow tube is connected with first flange disk, outside
By a pair of of second flange disk connection between Taper Pipe and total flow tube, the second flange disk is integral flange, and two second
Gasket seal is installed, the periphery of second flange disk is covered with nitrogen pressurising cover between ring flange.
Further, the nitrogen pressurising cover is fixed on pressurising cover pedestal by fixing bolt, the pressurising cover pedestal
There are two settings and is respectively arranged in total flow tube surface and outer cone pipe surface, and nitrogen pressurising cover is annular and is located at the second method
Blue disk periphery forms sealing.
Further, total flow tube is straight pipe shape, and middle Taper Pipe is partially protruded into total flow tube and connect with water inlet pipe, always
The baffle for stopping the cooling water between outer Taper Pipe and middle Taper Pipe is also equipped in flow tube.
Further, the one end of the middle Taper Pipe in total flow tube is closing mouth, and logical oxygen inner pipe portion protrudes into total flow tube, leads to
Oxygen inner tube protrudes into one end of total flow tube as opening.
Further, the spray head part on the outer Taper Pipe is equipped with nozzle sealing unit, the nozzle sealing unit packet
The mounting seat being installed on spray head is included, the mounting seat is hinged with L shape bar, and the L shape bar is hinged with connecting rod, the company
Extension bar is connected with for the sealing-plug with oxygen injection port cooperation sealing.
The working principle of the utility model is as follows:
The utility model devises outer Taper Pipe and total flow tube is attached by flange, entire oxygen rifle is divided into two sections, outside
Taper Pipe part is an integral structure with spray head and the production of second flange disk, and no-welding-seam and other damageable zones, total flow tube part are adopted
Use isodiametric straight tube as outer tube, water inlet pipe is mutually passed through with total flow tube and middle Taper Pipe and is connected to middle Taper Pipe simultaneously, is realized cold
But water recycles, and avoids the minor diameter pipe stress condition of multisection type casing severe, improves ambient stress, and oxygen rifle is whole at middle section position
It bears torque by second flange disk, guarantees that sound construction is reliable, and gasket seal is installed and nitrogen pressurising cover carries out dual let out
Dew insurance, nitrogen pressurising cover can prevent the leaked liquid in oxygen rifle under pressure.
In conclusion by adopting the above-described technical solution, the beneficial effects of the utility model are:
1. the utility model using flange, Taper Pipe, spray head integral type structure, avoid the unstability using weld seam,
It is met with stresses with flange, significantly improves the force environment of oxygen rifle entirety, reduce the damage of material, and be provided with nitrogen pressurising
Cover and gasket seal carry out dual-seal, while having high-intensitive, ensure that sealing is not revealed, effectively extend oxygen rifle
The safety of service life and processing.
The gap between two second flange disks is covered completely 2. the nitrogen pressurising of the utility model covers on circumferential direction
Wherein, when coolant liquid will be from when leaking between flange, the high pressure nitrogen filled in nitrogen pressurising cover can be under pressure
Drop coolant liquid pushes back in pipe, further improves leakage-preventing performance, keeps oxygen rifle reliability higher.
3. total flow tube of the utility model is isometrical straight pipe shape, used in the prior art to cooperate inlet and outlet pipes
The different cannula structure of multisection type diameter is compared, and is met with stresses by total flow tube and be can obviously reduce the damage rate of oxygen rifle, flowed always
Installation baffle can realize the circulation of cooling water under this structure in pipe, while can also carry out partial warm down to total flow tube.
4. the utility model is to avoid oxygen rifle oxygen when entering closed converter from entering in furnace in advance, and be provided with spray
Head sealing device, prevents the closing working environment destroyed in converter, is carried out with sealing-plug to oxygen injection port when not needing logical oxygen
Sealing, increases the flexibility of the utility model.
Detailed description of the invention
The utility model will illustrate by example and with reference to the appended drawing, in which:
Fig. 1 is the overall structure figure of the utility model；
Fig. 2 is the partial view of second flange disk in Fig. 1；
Fig. 3 is the structure chart of nozzle sealing unit in Fig. 1.
Description of symbols:
1- first flange disk, 2- water inlet pipe, 3- outlet pipe, 4- nitrogen pressurising cover, 5- gasket seal, 6- second flange disk,
7- leads to oxygen inner tube, Taper Pipe in 8-, the outer Taper Pipe of 9-, 10- nozzle sealing unit, 11- oxygen injection port, 12- oxygen lance nozzle, 13- pressurising cover
Pedestal, 14- fixing bolt, 15- sealing-plug, 16- mounting seat, 17-L shape bar, 18- connecting rod.
Specific embodiment
All features disclosed in this specification or disclosed all methods or in the process the step of, in addition to mutually exclusive
Feature and/or step other than, can combine in any way.
It elaborates below with reference to Fig. 1-Fig. 3 to the utility model.
Embodiment 1
The embodiment basic as one:
A kind of no-welding-seam oxygen lance with conical including outer Taper Pipe 9, the middle Taper Pipe 8 being installed in outer Taper Pipe 9 and is installed on middle Taper Pipe
Logical oxygen inner tube 7 in 8, which is characterized in that outer Taper Pipe 9 is connected with spray head, and outer Taper Pipe 9 is structure as a whole with spray head, and outer Taper Pipe 9 connects
It is connected to total flow tube, water inlet pipe 2 and outlet pipe 3 are installed in total flow tube, the end of total flow tube is connected with first flange disk 1, outer cone
It is connected between pipe 9 and total flow tube by a pair of of second flange disk 6, second flange disk 6 is integral flange, two second flanges
Gasket seal 5 is installed, the periphery of second flange disk 6 is covered with nitrogen pressurising cover 4 between disk 6.
The utility model using flange, Taper Pipe, spray head integral type structure, avoid the unstability using weld seam, use
Flange meets with stresses, and significantly improves the force environment of oxygen rifle entirety, reduces the damage of material, and be provided with nitrogen pressurising cover
4 and gasket seal 5 carry out dual-seal, while having high-intensitive, ensure that sealing is not revealed, effectively extend oxygen rifle
The safety of service life and processing.
Embodiment 2
The present embodiment emphasis illustrates the improvements compared with above-described embodiment, and something in common repeats no more, in this implementation
In example, nitrogen pressurising cover 4 is fixed on pressurising cover pedestal 13 by fixing bolt 14, and there are two the settings of pressurising cover pedestal 13 and divides
It is not installed on 9 surface of total flow tube surface and outer Taper Pipe, nitrogen pressurising cover 4 is annular and is located at the peripheral shape of second flange disk 6
At sealing.
The nitrogen pressurising cover 4 of the utility model covers in the gap between two second flange disks 6 on circumferential direction completely
Wherein, when coolant liquid will be from when leaking between flange, the high pressure nitrogen filled in nitrogen pressurising cover 4 can be under pressure
Drop coolant liquid pushes back in pipe, further improves leakage-preventing performance, keeps oxygen rifle reliability higher.
Embodiment 3
The present embodiment emphasis illustrates the improvements compared with above-described embodiment, and something in common repeats no more, in this implementation
In example, total flow tube is straight pipe shape, and middle Taper Pipe 8 is partially protruded into total flow tube and connect with water inlet pipe 2, is also equipped in total flow tube
For stopping the baffle of the cooling water between outer Taper Pipe 9 and middle Taper Pipe 8.
Further, the one end of middle Taper Pipe 8 in total flow tube is closing mouth, and logical oxygen inner tube 7 partially protrudes into total flow tube, leads to oxygen
Inner tube 7 protrudes into one end of total flow tube as opening.
Total flow tube of the utility model is isometrical straight pipe shape, is used in the prior art to cooperate inlet and outlet pipes 3
The different cannula structure of multisection type diameter is compared, and is met with stresses by total flow tube and be can obviously reduce the damage rate of oxygen rifle, flowed always
Installation baffle can realize the circulation of cooling water under this structure in pipe, while can also carry out partial warm down to total flow tube.
Embodiment 4
The present embodiment emphasis illustrates the improvements compared with above-described embodiment, and something in common repeats no more, in this implementation
In example, the spray head part on outer Taper Pipe 9 is equipped with nozzle sealing unit 10, and nozzle sealing unit 10 includes being installed on spray head
Mounting seat 16, mounting seat 16 are hinged with L shape bar 17, and L shape bar 17 is hinged with connecting rod 18, connecting rod 18 be connected with for
The sealing-plug 15 of the cooperation sealing of oxygen injection port 11.
The utility model is to avoid oxygen rifle oxygen when entering closed converter from entering in furnace in advance, and be provided with spray head
Sealing device 10 prevents the closing working environment destroyed in converter, when not needing logical oxygen with sealing-plug 15 to oxygen injection port 11
It is sealed, increases the flexibility of the utility model.
The utility model devises outer Taper Pipe 9 and total flow tube is attached by flange, entire oxygen rifle is divided into two sections, outside
9 part of Taper Pipe is an integral structure with spray head and the production of second flange disk 6, no-welding-seam and other damageable zones, total flow tube part
Using isodiametric straight tube as outer tube, water inlet pipe 2 is passed through with total flow tube and 8 phase of middle Taper Pipe and is connected to middle Taper Pipe 8 simultaneously, real
Existing cooling water circulation, avoids the minor diameter pipe stress condition of multisection type casing severe, improves ambient stress, and oxygen rifle is whole in middle section
Torque is born at position by second flange disk 6, guarantees that sound construction is reliable, and installs gasket seal 5 and the progress of nitrogen pressurising cover 4
Dual leakage insurance, nitrogen pressurising cover 4 can prevent the leaked liquid in oxygen rifle under pressure.
Claims (5)
1. a kind of no-welding-seam oxygen lance with conical, including outer Taper Pipe (9), the middle Taper Pipe (8) being installed in outer Taper Pipe (9) and it is installed on
Logical oxygen inner tube (7) in Taper Pipe (8), which is characterized in that the outer Taper Pipe (9) is connected with spray head, and outer Taper Pipe (9) and spray head are one
Body structure, the outer Taper Pipe (9) are connected with total flow tube, water inlet pipe (2) and outlet pipe (3) are equipped in total flow tube, total to flow
The end of pipe is connected with first flange disk (1), is connected between outer Taper Pipe (9) and total flow tube by a pair of of second flange disk (6), institute
Stating second flange disk (6) is integral flange, is equipped with gasket seal (5), second flange between two second flange disks (6)
The periphery of disk (6) is covered with nitrogen pressurising cover (4).
2. a kind of no-welding-seam oxygen lance with conical according to claim 1, which is characterized in that the nitrogen pressurising cover (4) passes through
Fixing bolt (14) is fixed on pressurising cover pedestal (13), and there are two pressurising cover pedestal (13) settings and is respectively arranged in total
On flow tube surface and outer Taper Pipe (9) surface, nitrogen pressurising cover (4) be annular and be located at second flange disk (6) periphery formed it is close
Envelope.
3. a kind of no-welding-seam oxygen lance with conical according to claim 1, which is characterized in that total flow tube is straight pipe shape,
Middle Taper Pipe (8) partially protrudes into total flow tube and connect with water inlet pipe (2), is also equipped in total flow tube for stopping outer Taper Pipe (9)
The baffle of cooling water between middle Taper Pipe (8).
4. a kind of no-welding-seam oxygen lance with conical according to claim 3, which is characterized in that the middle Taper Pipe (8) is in total flow tube
Interior one end is closing mouth, and logical oxygen inner tube (7) partially protrude into total flow tube, and logical oxygen inner tube (7) protrude into one end of total flow tube as opening.
5. a kind of no-welding-seam oxygen lance with conical according to claim 1, which is characterized in that the spray head on the outer Taper Pipe (9)
Part is equipped with nozzle sealing unit (10), and the nozzle sealing unit (10) includes the mounting seat being installed on spray head
(16), the mounting seat (16) is hinged with L shape bar (17), and the L shape bar (17) is hinged with connecting rod (18), the connecting rod
(18) it is connected with for the sealing-plug (15) with oxygen injection port (11) cooperation sealing.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201822218822.3U CN209260127U (en) | 2018-12-27 | 2018-12-27 | A kind of no-welding-seam oxygen lance with conical |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201822218822.3U CN209260127U (en) | 2018-12-27 | 2018-12-27 | A kind of no-welding-seam oxygen lance with conical |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| CN209260127U true CN209260127U (en) | 2019-08-16 |
Family
ID=67583644
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN201822218822.3U Active CN209260127U (en) | 2018-12-27 | 2018-12-27 | A kind of no-welding-seam oxygen lance with conical |
Country Status (1)
| Country | Link |
|---|---|
| CN (1) | CN209260127U (en) |
-
2018
- 2018-12-27 CN CN201822218822.3U patent/CN209260127U/en active Active
Similar Documents
| Publication | Publication Date | Title |
|---|---|---|
| AU2016201408B2 (en) | Apparatus and method for gas tight secondary stave support | |
| CN209260127U (en) | A kind of no-welding-seam oxygen lance with conical | |
| CN204550682U (en) | A kind of non-ferrous metal oxygen-enriched bottom-blowing oxygen lance | |
| JP2023543051A (en) | Blast furnace with shaft supply of hot process gas | |
| CN205635677U (en) | Converter armor formula oxygen rifle | |
| CN216404443U (en) | Metallurgical equipment desulfurization system spray gun dust removal sealing device | |
| CN109022651A (en) | A kind of device preventing blast furnace copper cooling stave inlet and outlet pipes leak | |
| CN205398672U (en) | Connection seal structure of RH annular ring supersonic speed top rifle | |
| CN212102905U (en) | Tuyere large sleeve with conical surface sealing structure for blast furnace | |
| CN208803105U (en) | A kind of device preventing blast furnace copper cooling stave inlet and outlet pipes leak | |
| CN208898935U (en) | A kind of high-efficiency water cooling coherent oxygen lance | |
| CN105567909A (en) | Connecting and sealing structure of annular hole supersonic RH top lance | |
| CN108115120B (en) | Protective tube for molten steel tapping process | |
| US20140291902A1 (en) | Cooled lance for injecting into a metallurgical vessel | |
| CN218932191U (en) | Device for treating gas blowby of furnace shell and bolt protective cap welded junction in blast furnace smelting | |
| CN208917236U (en) | A kind of dedicated sealing gland equipment of smelting production | |
| CN208901391U (en) | A kind of water cooled oxygen lance furnace gas after burner | |
| JP2023543052A (en) | Reducing gas injection system | |
| CN216073898U (en) | Water tank pipe network at converter mouth | |
| RU92013U1 (en) | BLAST FURNACE BLOWER | |
| CN212007572U (en) | Online hot-blast temperature detect element seepage processing apparatus | |
| CN210596136U (en) | Thermal insulation device for blast furnace hot blast pipe system | |
| CN206843515U (en) | A kind of auto-closed ball valve and a kind of blast furnace coal-spraying gun | |
| CN108130399B (en) | Electric furnace capable of protecting tapping and method for protecting tapping by electric furnace | |
| EA044816B1 (en) | REDUCING GAS INPUT SYSTEM |
Legal Events
| Date | Code | Title | Description |
|---|---|---|---|
| GR01 | Patent grant | ||
| GR01 | Patent grant |