CN201195729Y - Blast furnace coal gun - Google Patents
Blast furnace coal gun Download PDFInfo
- Publication number
- CN201195729Y CN201195729Y CNU2008200667617U CN200820066761U CN201195729Y CN 201195729 Y CN201195729 Y CN 201195729Y CN U2008200667617 U CNU2008200667617 U CN U2008200667617U CN 200820066761 U CN200820066761 U CN 200820066761U CN 201195729 Y CN201195729 Y CN 201195729Y
- Authority
- CN
- China
- Prior art keywords
- coal rifle
- blast furnace
- locating sleeve
- lance tube
- bellows chamber
- 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.)
- Expired - Fee Related
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- Blast Furnaces (AREA)
Abstract
The utility model discloses a blast furnace coal lance, in particular to a positioning device which prevents a gunbarrel of an ejection gun from positioning inaccurately and generating bounce. The positioning device mainly comprises an air bag pipe and the gunbarrel of the ejection gun, wherein the gunbarrel of the ejection gun is sleeved in the air bag pipe, and a coal lance positioning sleeve which is used to fix the air bag pipe and the gunbarrel of the ejection gun is arranged between the air bag pipe and the gunbarrel of the ejection gun. The positioning device enables the gunbarrel of the ejection gun to be positioned accurately, lowers the abrasion frequency of a blast furnace tuyere, and guarantees the yield of a blast furnace.
Description
Technical field
The utility model relates to a kind of blast furnace coal rifle, and the dancing locating device can't accurately be located, be produced to a kind of specifically lance tube of avoiding.
Background technology
Blast furnace coal rifle is the main device of blast-furnace smelting coal powder injection, and its main effect is that coal dust is sprayed in the furnace body by belly pipe, to improve combustion intensity and to reduce energy consumption.Lance tube sprays into the location of angle, directly influences the work-ing life of blast-furnace tuyere and the output of blast furnace.
The present two-tube coal spouting gun that uses, lance tube but are not used in solid locating device between the two in the bellows chamber pipe, cause lance tube to be in vacant state.Lance tube is subjected to the effect of airduct high-pressure hot wind at work, and lance tube produces beats, and makes blast-furnace tuyere washed away by the coal dust of lance tube front end ejection, and producing air port wearing and tearing frequency increases, and influences blast furnace stable high yield.
The utility model content
Can't accurately locate, produce and beat at the lance tube in the existing blast furnace coal rifle, make blast-furnace tuyere washed away by the coal dust of lance tube ejection, the wearing and tearing frequency increases, the shortcoming that furnace processor reduces, the utility model provides a kind of blast furnace coal rifle, and this blast furnace coal rifle is provided with coal rifle locating sleeve, and lance tube can accurately be located, reduce the wearing and tearing frequency of blast-furnace tuyere, guaranteed the output of blast furnace.
Purpose described in the utility model realizes by following scheme:
A kind of blast furnace coal rifle mainly comprises bellows chamber pipe and lance tube, and lance tube is socketed in the bellows chamber pipe, is provided with between described bellows chamber pipe and the lance tube to be used for both fixed coal rifle locating sleeves.
Preferred version to said structure is that described coal rifle locating sleeve is arranged on the end of belly pipe bellows chamber pipe.
For described coal rifle locating sleeve, its cross section can be annular, also can be for three-back-shaped.
Further, the outer wall of described coal rifle locating sleeve contacts with the inwall of bellows chamber pipe, and the inwall of coal rifle locating sleeve contacts with the outer wall of lance tube.
Preferably, described coal rifle locating sleeve fixes by welding or bonding and lance tube.
Further, be at least two dog screw along the circumferential uniform distribution quantity of coal rifle locating sleeve, dog screw is through the surfaces externally and internally of coal rifle locating sleeve.
Further, the quantity of described dog screw is four.
Preferably, described dog screw can be positioning stud.
The utlity model has following advantage:
1) the utility model is accurately located lance tube, has improved the coal powder injection effect, has protected the air port not worn and torn by coal dust, has guaranteed that blast furnace is more energy-saving and cost-reducing, has reduced the blast furnace staying rate, has improved the output of blast furnace.
2) coal rifle locating sleeve of the present utility model is easy for installation, changes simple.
3) the novel coal rifle locating sleeve of this use adopts the high temperature resistant stainless steel material to make, and its life-span is long, and is indeformable, can lance tube accurately be located.
Description of drawings
Fig. 1 is a structural representation of the present utility model;
Fig. 2 is the front view of coal rifle locating sleeve;
Fig. 3 is the side-view of coal rifle locating sleeve.
Embodiment
The utility model is described in further detail below in conjunction with accompanying drawing.
With reference to Fig. 1, the utility model mainly comprises belly pipe bellows chamber pipe 1 and lance tube 3, and lance tube 3 is socketed in the bellows chamber pipe 1, is provided with between bellows chamber pipe 1 and the lance tube 3 to be used for both fixed coal rifle locating sleeves 2, and coal rifle locating sleeve 2 is arranged on the end of bellows chamber pipe 1.Coal rifle locating sleeve 2 can make lance tube 3 accurately locate, and has protected air port 5 not worn and torn by coal dust, has guaranteed that blast furnace is more energy-saving and cost-reducing, has reduced the blast furnace staying rate, has improved the output of blast furnace.
With reference to Fig. 1, Fig. 2 and Fig. 3, coal rifle locating sleeve 2 cross sections of the present utility model are annular.Certainly, according to different requirements, the cross section of coal rifle locating sleeve 2 can be for three-back-shaped, and perhaps outer shroud is square, and interior ring is trilateral, circle, square etc.; Also can cross section for outer shroud is a trilateral, interior ring is trilateral, circle, square etc.When outer shroud when being square, four angles of quadrate need contact with bellows chamber pipe 1 inwall, in order to reduce the wearing and tearing of four angles to bellows chamber pipe 1 inwall, four angles can be designed to circular arc; When the outer shroud trilateral, leg-of-mutton three angles also need to contact with bellows chamber pipe 1 inwall, in order to reduce the wearing and tearing of three angles to bellows chamber pipe 1 inwall, also three angles can be designed to circular arc.Coal rifle locating sleeve 2 cross sections of the present utility model select for use belt purpose to be, fixing with lance tube 3 and bellows chamber pipe 1 that can be more firm accurately locate lance tube 3, protects air port 5 not worn and torn by coal dust.If selecting outer shroud for use is trilateral and square, then can saves and make the used material of coal rifle locating sleeve 2.
The outer wall of coal rifle locating sleeve 2 of the present utility model contacts with the inwall of bellows chamber pipe 1, and the inwall of coal rifle locating sleeve 2 contacts with the outer wall of lance tube 3.Certainly, coal rifle locating sleeve 2 also can fix by welding or bonding and lance tube 3.
Coal rifle locating sleeve 2 of the present utility model adopts the high temperature resistant stainless steel material to make, and selects for use this material can increase the life-span of coal rifle locating sleeve 2, makes it indeformable, guarantees lance tube 3 long-term accurately location.
With reference to Fig. 2 and Fig. 3, be at least two dog screw 4 along coal rifle locating sleeve 2 circumferential uniform distribution quantity, dog screw 4 is through the surfaces externally and internally of coal rifle locating sleeve 2.Dog screw 4 quantity of the present utility model are four, like this can be more firm lance tube 3 is fixed in the coal rifle locating sleeve 2.Dog screw 4 also can be designed to the double-screw bolt shape, has increased the contact area with lance tube 3 like this, has reduced the wearing and tearing to lance tube 3 outer walls.
In addition; the exemplary illustration that embodiment is just done the utility model and do not limit its protection domain; those skilled in the art can also make the change of some unsubstantialities to the utility model; so long as the improvement that this patent carries out all is considered as the replacement that is equal to this patent without creative work, therefore all within the protection domain of this patent.
Claims (9)
1. a blast furnace coal rifle mainly comprises bellows chamber pipe and lance tube, it is characterized in that lance tube is socketed in the bellows chamber pipe, is provided with between described bellows chamber pipe and the lance tube to be used for both fixed coal rifle locating sleeves.
2. blast furnace coal rifle according to claim 1 is characterized in that described coal rifle locating sleeve is arranged on the end of bellows chamber pipe.
3. blast furnace coal rifle according to claim 1 is characterized in that the cross section of described coal rifle locating sleeve is annular.
4. blast furnace coal rifle according to claim 1, the cross section that it is characterized in that described coal rifle locating sleeve is three-back-shaped.
5. according to any described blast furnace coal rifle in the claim 1 to 4, it is characterized in that the outer wall of described coal rifle locating sleeve contacts with the inwall of bellows chamber pipe, the inwall of coal rifle locating sleeve contacts with the outer wall of lance tube.
6. blast furnace coal rifle according to claim 5 is characterized in that described coal rifle locating sleeve fixes by welding or bonding and lance tube.
7. according to any described blast furnace coal rifle in the claim 1 to 4, it is characterized in that being at least two dog screw along the circumferential uniform distribution quantity of coal rifle locating sleeve, dog screw is through the surfaces externally and internally of coal rifle locating sleeve.
8. blast furnace coal rifle according to claim 7, the quantity that it is characterized in that described dog screw is four.
9. blast furnace coal rifle according to claim 7 is characterized in that described dog screw can be positioning stud.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CNU2008200667617U CN201195729Y (en) | 2008-04-30 | 2008-04-30 | Blast furnace coal gun |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CNU2008200667617U CN201195729Y (en) | 2008-04-30 | 2008-04-30 | Blast furnace coal gun |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| CN201195729Y true CN201195729Y (en) | 2009-02-18 |
Family
ID=40415366
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CNU2008200667617U Expired - Fee Related CN201195729Y (en) | 2008-04-30 | 2008-04-30 | Blast furnace coal gun |
Country Status (1)
| Country | Link |
|---|---|
| CN (1) | CN201195729Y (en) |
Cited By (2)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN103131810A (en) * | 2011-11-29 | 2013-06-05 | 张昭贵 | Blast furnace oxygen enrichment coal powder injection device and method off-line assembly and disassembly thereof |
| CN103266191A (en) * | 2013-05-14 | 2013-08-28 | 莱芜钢铁集团有限公司 | Abutting device and method of blast furnace blast belly pipe |
-
2008
- 2008-04-30 CN CNU2008200667617U patent/CN201195729Y/en not_active Expired - Fee Related
Cited By (3)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN103131810A (en) * | 2011-11-29 | 2013-06-05 | 张昭贵 | Blast furnace oxygen enrichment coal powder injection device and method off-line assembly and disassembly thereof |
| CN103266191A (en) * | 2013-05-14 | 2013-08-28 | 莱芜钢铁集团有限公司 | Abutting device and method of blast furnace blast belly pipe |
| CN103266191B (en) * | 2013-05-14 | 2014-11-12 | 莱芜钢铁集团有限公司 | Abutting device and method of blast furnace blast belly pipe |
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Legal Events
| Date | Code | Title | Description |
|---|---|---|---|
| C14 | Grant of patent or utility model | ||
| GR01 | Patent grant | ||
| C17 | Cessation of patent right | ||
| CF01 | Termination of patent right due to non-payment of annual fee |
Granted publication date: 20090218 Termination date: 20140430 |