CN201933100U - Blast furnace belly pipe with double guns - Google Patents
Blast furnace belly pipe with double guns Download PDFInfo
- Publication number
- CN201933100U CN201933100U CN2010206575160U CN201020657516U CN201933100U CN 201933100 U CN201933100 U CN 201933100U CN 2010206575160 U CN2010206575160 U CN 2010206575160U CN 201020657516 U CN201020657516 U CN 201020657516U CN 201933100 U CN201933100 U CN 201933100U
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- rush
- pipe
- belly pipe
- lance tube
- blast furnace
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Abstract
The utility model provides a blast furnace belly pipe with double guns, comprising a belly pipe and two spray gun tubes arranged on the belly pipe, wherein the belly pipe is provided with a horizontal central axis, and the two spray gun tubes are respectively arranged at the left side and the right side of the belly pipe and positioned at the upper side of the central axis. When the blast furnace belly pipe is installed, the spray gun tube at left side is inclined upwards slightly, and the spray gun tube at right side is inclined downwards slightly, so that braize flow sprayed from the two spray gun tubes is staggered up and down, thereby preventing the braize flow from interfering combustion efficiency.
Description
Technical field
The utility model relates to blast-furnace tuyere coal powder injection device.
Background technology
The blast furnace belly pipe is the pipeline that is used for to the blast furnace air-supply, generally is provided with a coal spouting gun in the side, the single rifle coal powder injection form of promptly general employing, because its coal combustion rate is low, the belly pipe of existing rush-harvesting and rush-planting coal powder injection form occurs.
As application number is 200820214896.3 utility model patent, and a kind of blast furnace belly pipe with rush-harvesting and rush-planting is provided, and it respectively is provided with a lance tube at two spray gun sleeve pipes of blowpipe arranged outside in two spray gun sleeve pipes, to realize the rush-harvesting and rush-planting coal powder injection.
Yet two spray gun sleeve pipe is 180 degree angle skew symmetries to be arranged, makes that the caliber of blowpipe is too big, influences the installation and removal of blowpipe; More seriously, the problem of above-mentioned utility model patent and unresolved two pulverized coal flow chiasma interferences that lance tube sprayed can't improve efficiency of combustion.
Summary of the invention
At the deficiencies in the prior art, the purpose of this utility model is: a kind of blast furnace belly pipe with rush-harvesting and rush-planting is provided, avoid the caliber of blowpipe to influence the installation and removal of blowpipe too greatly, and solve the problem of two pulverized coal flow chiasma interferences that lance tube sprayed.
For achieving the above object, the utility model provides a kind of blast furnace belly pipe with rush-harvesting and rush-planting, it comprises a belly pipe and two lance tubes that are arranged on this belly pipe, this belly pipe has a horizontally disposed central axis, it is characterized in that: these two lance tubes are installed in the left and right sides of this belly pipe respectively, also all are positioned at the upside of this central axis.
In a preferable embodiment: this belly pipe is taper, comprises the big Taper Pipe, middle Taper Pipe and the little Taper Pipe that link to each other successively, and this big Taper Pipe also is connected with and directly blows flange, and this conelet pipe has spout.
In a preferable embodiment: penetrate outside the wall of this lance tube Taper Pipe from this belly pipe in this in Taper Pipe, the external port of this lance tube is equipped with the lance tube flange, and the inner port of this lance tube is towards the spout of this belly pipe.
In a preferable embodiment: also surround in the outside of each lance tube and to be provided with a spray gun sheath, one end of this spray gun sheath is connected with the little Taper Pipe of this belly pipe, the other end is connected with an end plate, this end plate links to each other with the middle Taper Pipe of this belly pipe, offer perforation on the end plate, this perforation passes for this lance tube.
In a preferable embodiment: the central position of the perforation of the end plate of the lance tube of each side, together be limited with a mounting plane with the central axis of this belly pipe, the mounting plane of each side and the angle between the horizontal plane are first setting angle, and this first setting angle is 25～35 degree.
In a preferable embodiment: this first setting angle is 30 degree.
In a preferable embodiment: claim by this belly pipe central axis and with the perpendicular plane of the mounting plane of this lance tube be the center reference plane of this belly pipe, projection and this center reference plane of the axis of rotation of this lance tube on this mounting plane forms one second setting angle, and this second setting angle is the 8-14 degree.
In a preferable embodiment: this second setting angle is the 11-12 degree.
In a preferable embodiment: the projection in the heart reference plane therein of the axis of rotation of the lance tube of each side, be the center, form an elevation angle with the subpoint of central position in this side center reference plane of the perforation of the end plate of this side lance tube with respect to the mounting plane of this side lance tube, wherein the elevation angle that had of a side lance tube on the occasion of, the elevation angle that the opposite side lance tube is had is a negative value, and the absolute value at these two elevations angle is 0.2～5 degree.
In a preferable embodiment: the absolute value at these two elevations angle is the 0.5-2 degree.
The utility model adopts technique scheme, has following advantage:
1, two lance tubes are installed in the left and right sides of this belly pipe respectively, also all are positioned at the upside of this central axis, can dwindle the integral diameter that this has the blast furnace belly pipe of rush-harvesting and rush-planting, are beneficial to the installation and removal of this blowpipe.
2, the lance tube in left side slightly is in tilted layout up, and the lance tube on right side slightly is in tilted layout down, make two pulverized coal flows that lance tube sprayed (perhaps other solids, liquid, geseous fuel) to stagger up and down, avoided fuel stream to interfere and influence efficiency of combustion.
Description of drawings
Fig. 1 is the end axial view that the utlity model has the blast furnace belly pipe of rush-harvesting and rush-planting;
Fig. 2 is that the A of Fig. 1 is to revolved view;
Fig. 3 is the D-D sectional view of Fig. 2;
Fig. 4 is the end axial view of removing spray gun that the utlity model has the blast furnace belly pipe of rush-harvesting and rush-planting;
Fig. 5 is the E-E sectional view that Fig. 2 removes spray gun.
Embodiment
The utility model provides a kind of blast furnace belly pipe with rush-harvesting and rush-planting, its structure such as Fig. 1, Fig. 2, Fig. 3, Fig. 4, shown in Figure 5:
A belly pipe 10, be taper, comprise the big Taper Pipe 11, middle Taper Pipe 12 and the conelet pipe 13 that link to each other successively, this big Taper Pipe 11 also is connected with and directly blows flange 14, this conelet pipe 13 has spout 15, and described big Taper Pipe 11, middle Taper Pipe 12 and conelet pipe 13 have a horizontally disposed central axis O-O.
Two lance tubes 20 penetrate outside the wall of Taper Pipe 12 from this belly pipe 10 respectively in this in Taper Pipe 12, and the external port 21 of this lance tube 20 is equipped with lance tube flange 22, and the inner port 23 of this lance tube 20 is towards the spout 15 of this belly pipe 10; And these two lance tubes 20 are installed in the left and right sides of this belly pipe 10 respectively, also all are positioned at the upside of this central axis O-O.
In addition; also surround in the outside of each lance tube 20 and to be provided with a spray gun sheath 25; one end of this spray gun sheath 25 is connected with the conelet pipe 13 of this belly pipe 10; the other end is connected with an end plate 26; this end plate 26 links to each other with the middle Taper Pipe 12 of this belly pipe 10; offer perforation on the end plate 26, pass for this lance tube 20, thereby fixing and protection is lived with lance tube 20.
In the preferable performance, central position O1, the O2 point of the perforation of the end plate 26 of the lance tube 20 of each side is limited with a mounting plane M1 with the central axis O-O of this belly pipe 10 respectively, the mounting plane M1 of each side and the angle between the horizontal plane are the first setting angle α, and this first setting angle α is 25～35 degree; And in the present embodiment, this first setting angle α be with 30 the degree be that example is illustrated.Adopt mounting means like this, make two lance tubes 20 all be positioned at the upside of this belly pipe 10, can dwindle the integral diameter that this has the blast furnace belly pipe of rush-harvesting and rush-planting, be beneficial to the installation and removal of this blowpipe.
As shown in Figure 3, it is the sectional view after the utility model is cut open along a described mounting plane M1, in order to know the setting angle of expressing this lance tube 20, in this application, special claim the central axis O-O by this belly pipe 10 and with the perpendicular plane of the mounting plane M1 of this lance tube 20 be the center reference plane M2 of this belly pipe 10, as can see from Figure 3, projection and this center reference plane M2 of the axis of rotation 27 of this lance tube 20 on this mounting plane M1 forms one second setting angle β, the angle of this second setting angle β is the 8-14 degree, preferred 11-12 degree.With the present embodiment is example, and projection and this center reference plane M2 second setting angle β that form of the axis of rotation 27 of this lance tube 20 on this mounting plane M1 is 12 degree, can pass through from the spout 15 in these conelet pipe 13 the place aheads with the pulverized coal flow that guarantees ejection in the lance tube 20.
In order to make that the pulverized coal flow of ejection can not interfere in two lance tubes 20 after by spout 15, the utility model is also further adjusted as follows to the setting angle of lance tube 20:
Referring to Fig. 2, projection on the axis of rotation 27 heart reference plane therein M2 of the lance tube 20 in left side, the subpoint O1 ' of central position O1 in the reference plane of center with the perforation of end plate 26 is the center, mounting plane M1 with respect to this side lance tube 20, forming one (promptly it seems from Fig. 2 and is counterclockwise for the elevation angle gamma of negative value, make the inner port 23 of the lance tube 20 in this left side be lower than this mounting plane, and external port 21 is higher than this mounting plane), and, the absolute value of the elevation angle gamma of this negative value is 0.5～5 degree, preferred 0.5-2 degree, the best is 1.5 degree, and present embodiment is 1.5 degree; And the projection of the axis of rotation 27 of the lance tube 20 on right side on center reference plane M2, then with respect to the mounting plane of this side lance tube 20, form one on the occasion of elevation angle gamma (do not give diagram, if see it also is to rotate in the counterclockwise direction from the right side, make the inner port 23 of the lance tube 20 on right side be higher than its mounting plane, and external port 21 is lower than its mounting plane), should on the occasion of the absolute value of elevation angle gamma also be 0.5～5 degree, preferred 0.5-2 degree, the best are 1.5 degree, and present embodiment is 1.5 degree.
So arrange, the pulverized coal flow that lance tube 20 on the left of making is sprayed slightly penetrates down, and the pulverized coal flow that the lance tube 20 on right side is sprayed penetrates slightly up, and the pulverized coal flow that two lance tubes 20 are sprayed will stagger up and down, has avoided pulverized coal flow to interfere and influences efficiency of combustion.
Certainly, the positive negative value of the elevation angle gamma of the lance tube 20 of the left and right sides can also be exchanged, and structure after exchanging and the described structure of the foregoing description are to turn about just in time, will not give unnecessary details.And two spray guns described in the utility model can be used for spraying other fuel, for example: kerosene, coal gas, Sweet natural gas etc.
Above embodiment describes the utility model; but not do restrictive summary; those of ordinary skills are under the guidance of inventive concept of the present utility model; can also make modification and replacement on a lot of conventional structures, these are revised with replacement and also should be considered to belong among the protection domain of the present utility model.
Claims (10)
1. blast furnace belly pipe with rush-harvesting and rush-planting, comprise a belly pipe and two lance tubes that are arranged on this belly pipe, this belly pipe has a horizontally disposed central axis, it is characterized in that: these two lance tubes are installed in the left and right sides of this belly pipe respectively, also all are positioned at the upside of this central axis.
2. the blast furnace belly pipe with rush-harvesting and rush-planting according to claim 1, it is characterized in that: this belly pipe is taper, comprises the big Taper Pipe, middle Taper Pipe and the little Taper Pipe that link to each other successively, and this big Taper Pipe also is connected with and directly blows flange, and this conelet pipe has spout.
3. the blast furnace belly pipe with rush-harvesting and rush-planting according to claim 2, it is characterized in that: penetrate outside the wall of this lance tube Taper Pipe from this belly pipe in this in Taper Pipe, the external port of this lance tube is equipped with the lance tube flange, and the inner port of this lance tube is towards the spout of this belly pipe.
4. the blast furnace belly pipe with rush-harvesting and rush-planting according to claim 3, it is characterized in that: also surround in the outside of each lance tube and be provided with a spray gun sheath, one end of this spray gun sheath is connected with the little Taper Pipe of this belly pipe, the other end is connected with an end plate, this end plate links to each other with the middle Taper Pipe of this belly pipe, offer perforation on the end plate, this perforation passes for this lance tube.
5. the blast furnace belly pipe with rush-harvesting and rush-planting according to claim 3, it is characterized in that: the central position of the perforation of the end plate of the lance tube of each side, together be limited with a mounting plane with the central axis of this belly pipe, the mounting plane of each side and the angle between the horizontal plane are first setting angle, and this first setting angle is 25～35 degree.
6. the blast furnace belly pipe with rush-harvesting and rush-planting according to claim 5 is characterized in that: this first setting angle is 30 degree.
7. according to claim 5 or 6 described blast furnace belly pipes with rush-harvesting and rush-planting, it is characterized in that: claim by this belly pipe central axis and with the center reference plane of the perpendicular plane of the mounting plane of this lance tube for this belly pipe, projection and this center reference plane of the axis of rotation of this lance tube on this mounting plane forms one second setting angle, and this second setting angle is the 8-14 degree.
8. the blast furnace belly pipe with rush-harvesting and rush-planting according to claim 7 is characterized in that: this second setting angle is the 11-12 degree.
9. the blast furnace belly pipe with rush-harvesting and rush-planting according to claim 7, it is characterized in that: the projection in the heart reference plane therein of the axis of rotation of the lance tube of each side, be the center, form an elevation angle with the subpoint of central position in this side center reference plane of the perforation of the end plate of this side lance tube with respect to the mounting plane of this side lance tube, wherein the elevation angle that had of a side lance tube on the occasion of, the elevation angle that the opposite side lance tube is had is a negative value, and the absolute value at these two elevations angle is 0.2～5 degree.
10. the blast furnace belly pipe with rush-harvesting and rush-planting according to claim 9, it is characterized in that: the absolute value at these two elevations angle is the 0.5-2 degree.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN2010206575160U CN201933100U (en) | 2010-12-14 | 2010-12-14 | Blast furnace belly pipe with double guns |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN2010206575160U CN201933100U (en) | 2010-12-14 | 2010-12-14 | Blast furnace belly pipe with double guns |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| CN201933100U true CN201933100U (en) | 2011-08-17 |
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Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN2010206575160U Expired - Fee Related CN201933100U (en) | 2010-12-14 | 2010-12-14 | Blast furnace belly pipe with double guns |
Country Status (1)
| Country | Link |
|---|---|
| CN (1) | CN201933100U (en) |
Cited By (1)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN102559968A (en) * | 2010-12-14 | 2012-07-11 | 李春光 | Straight blowpipe with double guns for blast furnace |
-
2010
- 2010-12-14 CN CN2010206575160U patent/CN201933100U/en not_active Expired - Fee Related
Cited By (1)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN102559968A (en) * | 2010-12-14 | 2012-07-11 | 李春光 | Straight blowpipe with double guns for blast furnace |
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Legal Events
| Date | Code | Title | Description |
|---|---|---|---|
| C14 | Grant of patent or utility model | ||
| GR01 | Patent grant | ||
| CF01 | Termination of patent right due to non-payment of annual fee |
Granted publication date: 20110817 Termination date: 20151214 |
|
| EXPY | Termination of patent right or utility model |