CN209555269U - A kind of long-life two-tube Coal powder spray rifle - Google Patents
A kind of long-life two-tube Coal powder spray rifle Download PDFInfo
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- CN209555269U CN209555269U CN201822125214.8U CN201822125214U CN209555269U CN 209555269 U CN209555269 U CN 209555269U CN 201822125214 U CN201822125214 U CN 201822125214U CN 209555269 U CN209555269 U CN 209555269U
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- gun
- barral
- pipette tips
- tube
- outer tube
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Abstract
The utility model relates to a kind of two-tube Coal powder spray rifles of long-life, including gun body and tee tube, the gun body to be made of sequentially connected gun breech, barral of a gun and pipette tips, and pipette tips favour barral of a gun setting；Barral of a gun is made of barral of a gun inner tube and barral of a gun outer tube, and pipette tips are made of pipette tips inner tube and pipette tips outer tube；One end of barral of a gun inner tube is connect with gun breech, and the other end is connect with pipette tips inner tube, forms coal injection channel；Barral of a gun outer tube is connected to close to one end of gun breech with tee tube, and the other end is connected to pipette tips outer tube, forms purging wind channel；As strengthening segment, the ontology and strengthening segment of barral of a gun outer tube are made barral of a gun outer tube and pipette tips outer tube close to pipette tips one end of different Heat-Resisting Stainless Steel Tubes.The reliability that the utility model can be improved the service life of Coal powder spray rifle and use.
Description
Technical field
The utility model relates to a kind of blast furnace coal powder spray gun more particularly to a kind of two-tube Coal powder spray rifles of long-life.
Background technique
With the rapid development of economy, the market demand of steel is also being continuously increased, iron and steel output and quality are wanted
Seek Synchronous lifting.Since high furnace temperature directly affects iron and steel output and quality, and high furnace temperature is relied primarily on and is set around blast furnace
The coal dust amount that the multiple Coal powder spray rifles set spray is adjusted, so the performance of Coal powder spray rifle is most important；Presently, there are one
A problem is: Coal powder spray rifle is near air port, and not only gun body is easily broken, but also can fall off because of oxidation and empty failure occur,
So as to cause blast fumance accident, less serious case influences production efficiency, can generate prestige to the personal safety of operator around when serious
The side of body.Another there are the problem of be exactly that the gas that enters of high furnace gas and air port forms circulative convection, cause in Coal powder spray rifle
Because vibration falls off, reliability when using Coal powder spray rifle reduces the ceramic lining of pipe.
Summary of the invention
The utility model provides a kind of long-life two-tube Coal powder spray rifle, pipette tips outer tube and outside the barral of a gun at pipette tips
Pipe is all made of 314 stainless steel tubes, improves the heat resistance of material, to improve the service life of Coal powder spray rifle；Simultaneously in rifle
Retaining mechanism is respectively set on head and the barral of a gun of close pipette tips, prevents inner tube vibration from ceramic lining being caused to fall off, improves coal powder injection
The reliability that powder rifle uses.
In order to achieve the above object, the utility model is implemented with the following technical solutions:
A kind of long-life two-tube Coal powder spray rifle, including gun body and tee tube, the gun body is by sequentially connected gun breech, barral of a gun
And pipette tips composition, pipette tips favour barral of a gun setting；Barral of a gun is made of barral of a gun inner tube and barral of a gun outer tube, and pipette tips are by pipette tips inner tube and rifle
Head outer tube composition；One end of barral of a gun inner tube is connect with gun breech, and the other end is connect with pipette tips inner tube, forms coal injection channel；Rifle
Bar outer tube is connected to close to one end of gun breech with tee tube, and the other end is connected to pipette tips outer tube, forms purging wind channel；Close to pipette tips
The barral of a gun outer tube and pipette tips outer tube of one end use different heat-resistance stainless steels as strengthening segment, the ontology and strengthening segment of barral of a gun outer tube
Pipe is made.
It is not less than 400mm as length of tube outside the barral of a gun of strengthening segment.
Locking knot is set between the barral of a gun outer tube and barral of a gun inner tube of the strengthening segment, between pipette tips outer tube and pipette tips inner tube respectively
Structure.
The locking mechanism in same section along at least three holding screw that gun body is circumferentially arranged by forming, holding screw
Head pass through barral of a gun outer tube/pipette tips outer tube after hold out against in barral of a gun inner tube/pipette tips inner tube, outside the tail portion of holding screw and barral of a gun
Pipe/pipette tips outer tube welds and is polishing to flush.
The barral of a gun inner tube, pipette tips inner tube inner surface set ceramic lining.
Compared with prior art, the utility model has the beneficial effects that
1) 314 Heat-Resisting Stainless Steel Tubes are all made of in pipette tips outer tube and the barral of a gun outer tube at pipette tips, improve material
Heat resistance, to improve the service life of Coal powder spray rifle；
2) retaining mechanism is respectively set in pipette tips and on the barral of a gun at pipette tips, prevents inner tube vibration from causing ceramic-lined
Layer falls off, and improves the reliability that Coal powder spray rifle uses.
Detailed description of the invention
Fig. 1 is a kind of structural schematic diagram of two-tube Coal powder spray rifle of long-life described in the utility model.
Fig. 2 is the partial schematic diagram of Fig. 1.
In figure: in 1. gun breech, 2. barral of a gun, 21. barral of a gun outer tube, 22. barral of a gun inner tube, 23. strengthening segment, 3. pipette tips, 31. pipette tips
5. ceramic lining of pipe 32. pipette tips outer tube, 4. tee tube, 6. holding screw
Specific embodiment
Specific embodiment of the present utility model is described further with reference to the accompanying drawing:
See Fig. 1, is a kind of two-tube Coal powder spray rifle of long-life described in the utility model, including gun body and tee tube, the rifle
Body is made of sequentially connected gun breech 1, barral of a gun 2 and pipette tips 3, and pipette tips 3 favour the setting of barral of a gun 2；Barral of a gun 2 is by 22 He of barral of a gun inner tube
Barral of a gun outer tube 21 forms, and pipette tips 3 are made of pipette tips inner tube 31 and pipette tips outer tube 32；One end of barral of a gun inner tube 22 is connect with gun breech 1,
The other end is connect with pipette tips inner tube 31, forms coal injection channel；Barral of a gun outer tube 21 connects close to one end of gun breech 1 and tee tube 4
Logical, the other end is connected to pipette tips outer tube 32, forms purging wind channel；Barral of a gun outer tube 21 and pipette tips outer tube close to 3 one end of pipette tips
32 are used as strengthening segment 23, and the ontology and strengthening segment 23 of barral of a gun outer tube 21 are made of different Heat-Resisting Stainless Steel Tubes.
21 length of barral of a gun outer tube as strengthening segment 23 is not less than 400mm.
Divide between the barral of a gun outer tube 21 and barral of a gun inner tube 22 of the strengthening segment 23, between pipette tips outer tube 32 and pipette tips inner tube 31
Locking mechanism is not set.
The locking mechanism in same section along at least three holding screw 6 that gun body is circumferentially arranged by forming, holding screw
6 head is held out against in 22/ pipette tips inner tube 31 of barral of a gun inner tube after passing through 21/ pipette tips outer tube 32 of barral of a gun outer tube, the tail of holding screw 6
Portion and 21/ pipette tips outer tube 32 of barral of a gun outer tube weld and are polishing to flush.
The barral of a gun inner tube 22, pipette tips inner tube 31 inner surface set ceramic lining 5.
Following embodiment is implemented under premised on technical solutions of the utility model, gives detailed embodiment
With specific operating process, but the protection scope of the utility model is not limited to the following embodiments.Side used in following embodiments
Method is conventional method unless otherwise instructed.
In the present embodiment, most of gun body of Coal powder spray rifle includes barral of a gun inner tube 22, the barral of a gun outer tube in addition to strengthening segment 23
21 and pipette tips inner tube 31 be all made of 06Cr25Ni20 Heat-Resisting Stainless Steel Tube production, 06Cr25Ni20 (execute standard GB/T20878-
It 2007) is a kind of high chromiumnickel austenite stainless steel；Apart from pipette tips 3 (bending part in Fig. 1) 400mm begin to use 314 it is heat-resisting not
Steel pipe (Cr25-Ni20-Si2.0) is become rusty as strengthening segment 23.06Cr25Ni20 and 314 belongs to austenitic stainless steel, and 314 are
The spin-off of 06Cr25Ni20 increases Si element, to further improve the heat-resisting of material on the basis of 06Cr25Ni20
Property, compared with 06Cr25Ni20 stainless steel, 314 stainless steels can be used in the higher occasion of environment temperature, therefore spray can be improved
The service life of coal dust rifle, while not will increase dramatically its manufacturing cost.
In the present embodiment, two groups of holding screws, every group of tightening are set respectively in the corresponding pipette tips 3 of strengthening segment 23 and 2, barral of a gun
Screw is made of 3 holding screws 6 for being distributed in same circumference, for being fixedly connected with 22/ pipette tips inner tube 31 of barral of a gun inner tube and rifle
21/ pipette tips outer tube 32 of bar outer tube prevents 22/ pipette tips inner tube 31 of barral of a gun inner tube from generating vibration.Holding screw 6 is tightened in barral of a gun outer tube
In the threaded hole opened up on 21/ pipette tips outer tube 32, head is held out against in 22/ pipette tips inner tube 31 of barral of a gun inner tube；Holding screw 6
Tail portion is welded after tightening, and excision protrudes from the part of gun body and polishes smooth.
The preferable specific embodiment of the above, only the utility model, but the protection scope of the utility model is not
It is confined to this, anyone skilled in the art is within the technical scope disclosed by the utility model, practical according to this
Novel technical solution and its design is subject to equivalent substitution or change, should be covered within the scope of the utility model.
Claims (5)
1. a kind of long-life two-tube Coal powder spray rifle, including gun body and tee tube, the gun body by sequentially connected gun breech, barral of a gun and
Pipette tips composition, pipette tips favour barral of a gun setting；Barral of a gun is made of barral of a gun inner tube and barral of a gun outer tube, and pipette tips are by pipette tips inner tube and pipette tips
Outer tube composition；One end of barral of a gun inner tube is connect with gun breech, and the other end is connect with pipette tips inner tube, forms coal injection channel；Barral of a gun
Outer tube is connected to close to one end of gun breech with tee tube, and the other end is connected to pipette tips outer tube, forms purging wind channel；Its feature exists
In the barral of a gun outer tube and pipette tips outer tube close to pipette tips one end are as strengthening segment, and the ontology of barral of a gun outer tube is from strengthening segment using different
Heat-Resisting Stainless Steel Tube be made.
2. two-tube Coal powder spray rifle of a kind of long-life according to claim 1, which is characterized in that outside as the barral of a gun of strengthening segment
Length of tube is not less than 400mm.
3. two-tube Coal powder spray rifle of a kind of long-life according to claim 1, which is characterized in that outside the barral of a gun of the strengthening segment
Locking mechanism is set respectively between pipe and barral of a gun inner tube, between pipette tips outer tube and pipette tips inner tube.
4. two-tube Coal powder spray rifle of a kind of long-life according to claim 3, which is characterized in that the locking mechanism is by same
At least three holding screw composition that one section is circumferentially arranged along gun body, the head of holding screw pass through barral of a gun outer tube/pipette tips outer tube
After hold out against in barral of a gun inner tube/pipette tips inner tube, the tail portion of holding screw and barral of a gun outer tube/pipette tips outer tube weld and are polishing to surface
Concordantly.
5. two-tube Coal powder spray rifle of a kind of long-life according to claim 1, which is characterized in that the barral of a gun inner tube, pipette tips
The inner surface of inner tube sets ceramic lining.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201822125214.8U CN209555269U (en) | 2018-12-18 | 2018-12-18 | A kind of long-life two-tube Coal powder spray rifle |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201822125214.8U CN209555269U (en) | 2018-12-18 | 2018-12-18 | A kind of long-life two-tube Coal powder spray rifle |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| CN209555269U true CN209555269U (en) | 2019-10-29 |
Family
ID=68302542
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN201822125214.8U Active CN209555269U (en) | 2018-12-18 | 2018-12-18 | A kind of long-life two-tube Coal powder spray rifle |
Country Status (1)
| Country | Link |
|---|---|
| CN (1) | CN209555269U (en) |
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2018
- 2018-12-18 CN CN201822125214.8U patent/CN209555269U/en active Active
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