CN209969546U - Coal oxygen gun - Google Patents
Coal oxygen gun Download PDFInfo
- Publication number
- CN209969546U CN209969546U CN201920586181.9U CN201920586181U CN209969546U CN 209969546 U CN209969546 U CN 209969546U CN 201920586181 U CN201920586181 U CN 201920586181U CN 209969546 U CN209969546 U CN 209969546U
- Authority
- CN
- China
- Prior art keywords
- pipe
- oxygen
- water
- gas pipe
- coal
- 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
Images
Landscapes
- Blast Furnaces (AREA)
Abstract
The utility model discloses a coal-oxygen lance, which comprises an oxygen pipe, a gas pipe and a water pipe, wherein the water pipe is sleeved outside the oxygen pipe, and a gap is arranged between the water pipe and the oxygen pipe; the oxygen pipe is sleeved outside the gas pipe, and a gap is formed between the oxygen pipe and the gas pipe; the water pipe is provided with a water inlet and a water outlet, and the water inlet is connected with water supply equipment; the oxygen pipe is connected with the oxygen supply device, and the gas pipe is connected with the gas supply device. The utility model discloses a coal oxygen rifle disposes the water pipe, utilizes the cooling water that flows to take away the heat that the coal oxygen rifle produced because of spraying flame, reduces the operating temperature of coal oxygen rifle and because of the heat altered shape that high temperature produced, improves the life of coal oxygen rifle.
Description
Technical Field
The utility model relates to a steelmaking equipment field especially relates to a low-cost coal oxygen rifle with water-cooling function.
Background
The coal-oxygen lance is a common device in the steel smelting industry and is mainly used for spraying flame into a ladle when the ladle is maintained. The coal-oxygen lance in the prior art comprises an oxygen pipe and a gas pipe, wherein the oxygen pipe is sleeved outside the gas pipe; the gas pipe sprays gas outwards, and the oxygen pipe sprays oxygen outwards; the coal gas and the oxygen are mixed at the muzzle of the coal-oxygen lance and are ignited to generate high-temperature flame. Because the gas pipe and the oxygen pipe are both steel pipes, the gas pipe and the oxygen pipe are easy to deform under the action of high-temperature flame when in use. Generally, the service life of one coal-oxygen lance is only a few days, the consumption is very large, and the steel-making cost of a steel mill is influenced.
SUMMERY OF THE UTILITY MODEL
The to-be-solved technical problem of the utility model is to provide a coal oxygen rifle with water-cooling function, improve the life of coal oxygen rifle.
In order to solve the technical problem, the utility model discloses a technical scheme does: a coal-oxygen gun comprises an oxygen pipe, a gas pipe and a water pipe, wherein the water pipe is sleeved outside the oxygen pipe, and a gap is formed between the water pipe and the oxygen pipe;
the oxygen pipe is sleeved outside the gas pipe, and a gap is formed between the oxygen pipe and the gas pipe;
the water pipe is provided with a water inlet and a water outlet, and the water inlet is connected with water supply equipment;
the oxygen pipe is connected with the oxygen supply device, and the gas pipe is connected with the gas supply device.
During the working period of the coal-oxygen lance, the water supply equipment provides flowing cooling water for the water pipe to reduce the temperature of the whole coal-oxygen lance, reduce the thermal deformation of the oxygen pipe and the gas pipe and prolong the service life.
Furthermore, the water inlet and the water outlet are respectively positioned at two ends of the water pipe, and the cooling water has to go through the whole length of the water pipe from the water inlet pipe to the water outlet pipe so as to be subjected to sufficient heat exchange with the gas pipe and the oxygen pipe.
Further, the oxygen pipe comprises a main oxygen pipe and a tip oxygen pipe; the gas pipe comprises a main gas pipe and an end gas pipe; the main oxygen pipe is longer than the end oxygen pipe, and the main gas pipe is longer than the end gas pipe;
the end oxygen pipe is butted and communicated with the main body oxygen pipe, and the end gas pipe is butted and communicated with the main body gas pipe; the main oxygen pipe is sleeved outside the main gas pipe, and a gap is formed between the main oxygen pipe and the main gas pipe; the end oxygen pipe is sleeved outside the end gas pipe, and a gap is formed between the end oxygen pipe and the end gas pipe;
the main body oxygen pipe is connected with oxygen supply equipment, and the main body gas pipe is connected with gas supply equipment;
the oxygen and the coal gas are respectively discharged from the end oxygen pipe and the end gas pipe and are ignited to be used as the end oxygen pipe and the end gas pipe which are closest to high-temperature flame, and the temperature of the oxygen and the coal gas pipe is better than that of the main oxygen pipe and the main gas pipe during working, and the service life of the oxygen and the coal gas pipe is also shorter; in order to reduce the cost consumption of the whole coal-oxygen lance, the utility model designs the end oxygen pipe and the main body oxygen pipe to be detachable, and designs the end gas pipe and the main body gas pipe to be detachable; after the oxygen pipe and the gas pipe are used for a period of time, a steel mill only needs to replace the end oxygen pipe and the end gas pipe with smaller sizes, and all the oxygen pipes and all the gas pipes do not need to be replaced.
Specifically, a first connecting piece is arranged at the connecting end of the main oxygen tube, and a tapered hole communicated with the main oxygen tube is formed in the first connecting piece; the connecting end of the end oxygen pipe is provided with a first conical piece, the first conical piece is inserted into the conical hole, and the first conical piece is connected with the first connecting piece through a bolt;
the connecting end of the main gas pipe is provided with a second connecting piece, and the second connecting piece is provided with a conical hole communicated with the main gas pipe; the connecting end of the end gas pipe is provided with a second conical part, the second conical part is inserted into the conical hole, and the second conical part is connected with the second connecting piece through a bolt.
Has the advantages that: (1) the utility model discloses a coal oxygen rifle disposes the water pipe, utilizes the cooling water that flows to take away the heat that the coal oxygen rifle produced because of spraying flame, reduces the operating temperature of coal oxygen rifle and because of the heat altered shape that high temperature produced, improves the life of coal oxygen rifle. (2) The utility model discloses a coal oxygen rifle is the sectional type structure with oxygen hose and gas pipe design, and the person of facilitating the use changes the end oxygen hose and the end gas pipe that are close to high temperature flame, reduces the cost loss of coal oxygen rifle.
Drawings
FIG. 1 is a front view of the coal-oxygen lance of example 1.
Fig. 2 is a sectional view a-a of fig. 1.
Fig. 3 is an enlarged view a of fig. 2.
Fig. 4 is an enlarged view B of fig. 2.
Fig. 5 is a sectional view B-B of fig. 3.
Wherein: 1. a main body oxygen tube; 2. an end oxygen tube; 3. a main body gas pipe; 4. a gas pipe at the end; 5. a water pipe; 501. a water inlet; 502. a water outlet; 6. a first connecting member; 7. a first conical member; 8. a second connecting member; 9. a second conical member.
Detailed Description
The present invention will be described in further detail with reference to the following embodiments.
Example 1
As shown in fig. 1 to 5, the coal-oxygen lance of the present embodiment comprises a main body oxygen pipe 1, an end oxygen pipe 2, a main body gas pipe 3, an end gas pipe 4 and a water pipe 5,
the main oxygen pipe 1 is longer than the end oxygen pipe 2, and the main gas pipe 3 is longer than the end gas pipe 4;
the connecting end of the main oxygen tube 1 is provided with a first connecting piece 6, and the first connecting piece 6 is provided with a conical hole communicated with the main oxygen tube 1; the connecting end of the end oxygen tube 2 is provided with a first conical piece 7, the first conical piece 7 is inserted into the conical hole, and the first conical piece 7 is connected with the first connecting piece 6 through a bolt;
a second connecting piece 8 is arranged at the connecting end of the main gas pipe 3, and a tapered hole communicated with the main gas pipe 3 is formed in the second connecting piece 8; the connecting end of the end gas pipe 4 is provided with a second conical part 9, the second conical part 9 is inserted into the conical hole, and the second conical part 9 is connected with the second connecting piece 8 through a bolt;
the main body oxygen pipe 1 is sleeved outside the main body gas pipe 3, and a gap is formed between the main body oxygen pipe 1 and the main body gas pipe 3; the end oxygen pipe 2 is sleeved outside the end gas pipe 4, and a gap is formed between the end oxygen pipe 2 and the end gas pipe 4; the water pipe 5 is sleeved outside the main oxygen pipe 1, and a gap is formed between the water pipe 5 and the main oxygen pipe 1;
the main oxygen pipe 1 is connected with oxygen supply equipment, and the main gas pipe 3 is connected with gas supply equipment;
the water pipe 5 is provided with a water inlet 501 and a water outlet 502 at two ends thereof.
When the coal-oxygen lance of the embodiment is mainly used in a steel plant, oxygen passes through the main oxygen pipe 1 and the end oxygen pipe 2 and then is mixed with coal gas sprayed out of the end coal gas pipe 4 and finally ignited, and the coal-oxygen lance sprays high-temperature flame outwards. During the working period of the coal-oxygen lance, cooling water enters the water pipe 5 through the water inlet 501 and exchanges heat with the whole coal-oxygen lance, so that the temperature of the whole oxygen pipe and the gas pipe is reduced, and the service life of the coal-oxygen lance is prolonged. Meanwhile, after the end of the coal-oxygen lance is damaged due to thermal deformation, workers can replace the end oxygen pipe 2 and the end gas pipe 4 by disassembling bolts, so that the cost loss of the coal-oxygen lance is reduced.
Although the embodiments of the present invention have been described in the specification, these embodiments are only for the purpose of presentation and should not be construed as limiting the scope of the present invention. Various omissions, substitutions, and changes may be made without departing from the spirit and scope of the invention.
Claims (4)
1. An oxygen-coal lance is characterized in that: comprises an oxygen pipe, a gas pipe and a water pipe, wherein the water pipe is sleeved outside the oxygen pipe, and a gap is formed between the water pipe and the oxygen pipe;
the oxygen pipe is sleeved outside the gas pipe, and a gap is formed between the oxygen pipe and the gas pipe;
the water pipe is provided with a water inlet and a water outlet, and the water inlet is connected with water supply equipment;
the oxygen pipe is connected with the oxygen supply device, and the gas pipe is connected with the gas supply device.
2. The coal-oxygen lance of claim 1 wherein: the water inlet and the water outlet are respectively positioned at two ends of the water pipe.
3. The coal-oxygen lance of claim 2 wherein: the oxygen pipe comprises a main body oxygen pipe and an end oxygen pipe; the gas pipe comprises a main gas pipe and an end gas pipe;
the end oxygen pipe is butted and communicated with the main body oxygen pipe, and the end gas pipe is butted and communicated with the main body gas pipe;
the main oxygen pipe is sleeved outside the main gas pipe, and a gap is formed between the main oxygen pipe and the main gas pipe;
the end oxygen pipe is sleeved outside the end gas pipe, and a gap is formed between the end oxygen pipe and the end gas pipe;
the main oxygen pipe is connected with the oxygen supply device, and the main gas pipe is connected with the gas supply device.
4. The coal-oxygen lance of claim 3 wherein:
the connecting end of the main oxygen pipe is provided with a first connecting piece, and the first connecting piece is provided with a conical hole communicated with the main oxygen pipe; the connecting end of the end oxygen pipe is provided with a first conical piece, the first conical piece is inserted into the conical hole, and the first conical piece is connected with the first connecting piece through a bolt;
the connecting end of the main gas pipe is provided with a second connecting piece, and the second connecting piece is provided with a conical hole communicated with the main gas pipe; the connecting end of the end gas pipe is provided with a second conical part, the second conical part is inserted into the conical hole, and the second conical part is connected with the second connecting piece through a bolt.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201920586181.9U CN209969546U (en) | 2019-04-26 | 2019-04-26 | Coal oxygen gun |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201920586181.9U CN209969546U (en) | 2019-04-26 | 2019-04-26 | Coal oxygen gun |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| CN209969546U true CN209969546U (en) | 2020-01-21 |
Family
ID=69259770
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN201920586181.9U Active CN209969546U (en) | 2019-04-26 | 2019-04-26 | Coal oxygen gun |
Country Status (1)
| Country | Link |
|---|---|
| CN (1) | CN209969546U (en) |
-
2019
- 2019-04-26 CN CN201920586181.9U patent/CN209969546U/en active Active
Similar Documents
| Publication | Publication Date | Title |
|---|---|---|
| CN209969546U (en) | Coal oxygen gun | |
| CN201413041Y (en) | Side-blown spraying gun | |
| CN201495245U (en) | Stream guidance type blast furnace tuyere small sleeve | |
| CN102191346B (en) | Combined tuyere small sleeve | |
| CN201648218U (en) | Cooling device for PDP float glass kiln combustor | |
| CN211339571U (en) | Coal powder spray gun with tapered nozzle for blast furnace | |
| CN212688118U (en) | Split type water cooling device of electric furnace oxygen lance | |
| CN209702795U (en) | A kind of flange form steep-taper oxygen lance | |
| CN207362310U (en) | Four-way oxygen fine coal spray gun | |
| CN202519277U (en) | Intermediate sleeve of blast-furnace tuyere | |
| CN207391476U (en) | A kind of oxygen rifle with nozzle | |
| CN218951429U (en) | Furnace wall carbon gun for electric arc furnace | |
| CN107312898B (en) | Blast furnace coal powder spray head | |
| CN220152738U (en) | Novel karduo furnace smelting gun | |
| CN201016118Y (en) | Furnace wall oxygen lance protection device | |
| CN205245170U (en) | Four -channel gas oxygen -enriched combustor in gas cupola furnace | |
| CN216473310U (en) | High-temperature-resistant, corrosion-resistant and long-life oxygen lance nozzle | |
| CN104399614A (en) | High-temperature self-cooling denitration spray gun | |
| CN211035984U (en) | Composite RH oxygen lance nozzle | |
| CN218290981U (en) | Making slag runner spout by using replaced old two sleeves | |
| CN202133287U (en) | Combined tuyere small sleeve | |
| CN219530172U (en) | Metal corrugated expansion joint for high-temperature-resistant electric furnace flue gas pipeline | |
| CN210620855U (en) | Novel copper cooling bar | |
| CN109777909B (en) | Reducing joint for flue of steel-making furnace | |
| CN202865258U (en) | Top lance for vacuum refining of molten steel |
Legal Events
| Date | Code | Title | Description |
|---|---|---|---|
| GR01 | Patent grant | ||
| GR01 | Patent grant |