CN201648411U - Guiding coal injection gun of blast furnace - Google Patents
Guiding coal injection gun of blast furnace Download PDFInfo
- Publication number
- CN201648411U CN201648411U CN2010201458372U CN201020145837U CN201648411U CN 201648411 U CN201648411 U CN 201648411U CN 2010201458372 U CN2010201458372 U CN 2010201458372U CN 201020145837 U CN201020145837 U CN 201020145837U CN 201648411 U CN201648411 U CN 201648411U
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- Prior art keywords
- blast furnace
- guiding
- passage
- coal
- coal injection
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Abstract
The utility model relates to a guiding coal injection gun of a blast furnace. The utility model has the technical scheme that the guiding coal injection gun comprises a gun body, wherein a switch is arranged at the inlet end of the gun body; a coal dust passage in the gun body comprises a main passage and a guiding passage; the included angle between the central lines of the main passage and the guiding passage is the obtuse angle, and the obtuse angle alpha is 165-173 degrees; and the outlet of the guiding passage is arranged on the side wall of the gun body. In the utility model, by changing the direction of the outlet of the coal dust passage of the coal injection gun, the coal injection direction is in parallel to the air direction of an air supply pipe, thereby effectively avoiding the scouring and the abrasion of coal dust to an air opening, so as to reduce the damage to the blast furnace due to the water leakage caused by the scouring for the air opening, prolong the service life of the air opening equipment of the blast furnace, lengthen the service cycle and reduce the downtime ratio, wherein the service life of the air opening can be prolonged to be more than twelve months effectively.
Description
Technical field
The utility model is a kind of blast furnace guiding coal spouting gun.
Background technology
At present, the pulverized coal gun of common use is because of the overall design structural reason, rifle footpath axis becomes 9.5 degree with the blast tube axis of blast furnace, insert pulverized coal conveying in the air port, because of the existence of this angle and the coal dust group back of loosing produces erosive wear to blast-furnace tuyere, just the air port inner chamber be may wear to generation less than one month when serious and leak, injure the ordinary production use of blast furnace and operator's life security.
Summary of the invention
The utility model is in order to overcome the shortcoming of existing coal spouting gun, under the prerequisite that does not change existing blast furnace air inlet equipment installation dimension, the coal powder injection direction is become parallel with the wind direction of the described generation of blast tube, avoided washing away, wearing and tearing to the air port, thereby reduced because of washing away the air port and produced the damage of leaking blast furnace being caused, improved the work-ing life of blast-furnace tuyere spare part, prolonged its life cycle, reduced delay ratio, can effectively prolong air port work-ing life, reach more than 12 months, the utility model is simple in structure, the processing and manufacturing cost is low.
The utility model is realized by following technical measures: a kind of blast furnace guiding coal spouting gun, it comprises the rifle body, rifle body inlet end is provided with switch, the coal dust passage comprises main channel and guide channel in the described rifle body, angle between described main channel and the guide channel medullary ray is the obtuse angle, obtuse angle alpha is 165～173 degree, and the outlet of described guide channel is arranged on the sidewall of rifle body.
Concrete characteristics of the present utility model also have, and above-mentioned rifle body is a cylindrical shape.
The beneficial effect of this programme can be learnt according to the narration to such scheme, the utility model is by having changed the direction of coal spouting gun coal dust channel outlet, the wind direction that coal powder injection direction and blast tube are produced is parallel or approximate parallel, effectively avoided coal dust washing away, wearing and tearing to the air port, thereby reduced because of washing away the air port and produced the damage of leaking blast furnace being caused, improved the work-ing life of blast-furnace tuyere spare part, prolonged its life cycle, reduced delay ratio, can effectively prolong air port work-ing life, reach more than 12 months.
Description of drawings
Fig. 1 is the structural representation of the utility model embodiment.
Among the figure: 1. rifle body, 2. switch, 3. main channel, 4. guide channel.
Embodiment
For clearly demonstrating the technical characterstic of this programme,, this programme is set forth below by an embodiment.
A kind of blast furnace guiding coal spouting gun, as shown in Figure 1, it comprises rifle body 1, rifle body 1 inlet end is provided with switch 2, the coal dust passage comprises main channel 3 and guide channel 4 in the described rifle body 1, angle between main channel 3 and guide channel 4 medullary rays is the obtuse angle, obtuse angle alpha is 165～173 degree, specifically can adopt α is any numerical value between 165,165.5,170,170.5,172,172.5 etc. 165 to 173, its objective is that the wind direction that coal powder injection direction and blast tube are produced is parallel or approximate parallel, the outlet of guide channel 4 is arranged on the sidewall of rifle body 1.Rifle body 1 is a cylindrical shape.
The utility model is by having changed the direction of coal spouting gun coal dust channel outlet, the wind direction that coal powder injection direction and blast tube are produced is parallel or approximate parallel, effectively avoided coal dust washing away, wearing and tearing to the air port, thereby reduced because of washing away the air port and produced the damage of leaking blast furnace being caused, improve the work-ing life of blast-furnace tuyere spare part, prolonged its life cycle, reduced delay ratio, can effectively prolong air port work-ing life, reach more than 12 months; The utility model is a kind of full-automatic feeding unit, and its rifle body can adopt the combined type coal spouting gun, also can adopt the single-walled pipe coal spouting gun, and that its rifle body adopts is high temperature resistant, resistance to wear, seamless stainless steel or other steel alloy tubing all can.
Claims (2)
1. blast furnace guiding coal spouting gun, it comprises the rifle body, rifle body inlet end is provided with switch, it is characterized in that, the coal dust passage comprises main channel and guide channel in the described rifle body, angle between described main channel and the guide channel medullary ray is the obtuse angle, and obtuse angle alpha is 165～173 degree, and the outlet of described guide channel is arranged on the sidewall of rifle body.
2. blast furnace guiding coal spouting gun according to claim 1 is characterized in that described rifle body is a cylindrical shape.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN2010201458372U CN201648411U (en) | 2010-03-31 | 2010-03-31 | Guiding coal injection gun of blast furnace |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN2010201458372U CN201648411U (en) | 2010-03-31 | 2010-03-31 | Guiding coal injection gun of blast furnace |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| CN201648411U true CN201648411U (en) | 2010-11-24 |
Family
ID=43113640
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN2010201458372U Expired - Fee Related CN201648411U (en) | 2010-03-31 | 2010-03-31 | Guiding coal injection gun of blast furnace |
Country Status (1)
| Country | Link |
|---|---|
| CN (1) | CN201648411U (en) |
-
2010
- 2010-03-31 CN CN2010201458372U patent/CN201648411U/en not_active Expired - Fee Related
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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: 20101124 Termination date: 20120331 |