CN209778915U - Blowing and cooling device for blast furnace tuyere air supply pipeline - Google Patents
Blowing and cooling device for blast furnace tuyere air supply pipeline Download PDFInfo
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- CN209778915U CN209778915U CN201920333153.6U CN201920333153U CN209778915U CN 209778915 U CN209778915 U CN 209778915U CN 201920333153 U CN201920333153 U CN 201920333153U CN 209778915 U CN209778915 U CN 209778915U
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- compressed air
- distributor
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- blowing
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Abstract
The utility model relates to a be used for blast furnace tuyere supply air duct to sweep heat sink, including cylindrical distributor, be provided with the trompil that the equidistance was arranged on two mutually perpendicular's of distributor respectively, trompil department airtight welding has the distribution branch pipe respectively, one side of distributor be provided with one with the trompil of compressed air house steward butt joint, compressed air passes through the compressed air house steward and gets into the distributor, opens the distribution branch pipe that needs use and sweeps the cooling to the super punctuation of supply air duct temperature. Can ensure that blast furnace tuyere regional compressed air convenient to use, realize carrying out rational distribution to compressed air, satisfy simultaneously and sweep the needs of cooling to a plurality of supply air duct temperature points that exceed standard to guarantee that blast furnace tuyere regional supply air duct safety is controllable.
Description
Technical Field
The utility model belongs to the technical field of blast furnace tuyere safety equipment, a be used for blast furnace tuyere supply air duct to sweep heat sink is related to.
Background
The blast pipe in the tuyere area of the blast furnace is the most important equipment in the blast furnace production. The air port air supply pipeline mainly comprises an air port sleeve, a blowing pipe, a middle section, a gooseneck, a hot air surrounding pipe and the like. The air supply pipeline is used for supplying high-temperature and high-pressure hot air sent out by the blast furnace hot-air furnace into the blast furnace, so that blast furnace smelting is realized.
The pressure of the air supply pipeline at the air opening is over 300kpa, the high temperature of the air supply pipeline is over 1150 ℃, and the flow rate of the hot air is over 200 m/s. Under the action of high-temperature, high-pressure and high-speed fluid, the phenomenon that the refractory material in the air supply pipeline falls off and becomes thin is easy to occur along with the prolonging of the service cycle of the air supply pipeline, and the refractory material in the air supply pipeline is easy to crack and deform due to the fluctuation of the temperature of hot air.
When the refractory material in the air supply pipeline falls off and becomes thin, or the temperature of the hot air of the blast furnace is too high, the temperature of the steel shell of the air supply pipeline is easy to exceed the safety control standard, the shell of the air supply pipeline turns red and deforms, and even a blast furnace tuyere burns through a major production safety accident.
The general number of the air ports of the large-scale blast furnace is more than 20, when the temperature of the air supply pipeline exceeds the safety control standard point, the temperature of a plurality of points of the air supply pipeline with the air ports exceeds the safety standard sometimes. At present, when a blast furnace is newly built in China, the number of compressed air interfaces arranged in the tuyere area is not too large, and generally 4 compressed air interfaces are arranged according to the direction. When the temperature of the air supply pipeline at the air port exceeds the safety control standard, compressed air is usually connected to blow, cool and cool the temperature exceeding the standard point, so that the safety and controllability of the air supply pipeline are ensured. If many blast pipes in wind gap temperature surpassed the safety control standard, the compressed air interface is not enough, can't satisfy the needs that blow down the cooling to a plurality of points simultaneously, if because of blowing down the cooling and consumed whole compressed air interfaces, seem very inconvenient when needing to carry out other operations with compressed air.
SUMMERY OF THE UTILITY MODEL
In order to overcome the above shortcoming of prior art, the utility model provides a be used for blast furnace tuyere supply air duct to sweep heat sink, it can ensure blast furnace tuyere regional compressed air convenient to use, realizes carrying out rational distribution to compressed air, satisfies the needs that sweep the cooling to a plurality of supply air duct temperature points that exceed standard simultaneously to guarantee that blast furnace tuyere regional supply air duct safety is controllable.
The utility model provides a technical scheme that its technical problem adopted is: the utility model provides a be used for blast furnace tuyere supply-air duct to sweep heat sink, includes cylindrical distributor, is provided with the trompil that the equidistance was arranged respectively on two mutually perpendicular's of distributor, and the airtight welding of trompil department has the distribution branch pipe respectively, and one side of distributor is provided with the trompil of one with the butt joint of compressed air house steward, and compressed air passes through compressed air house steward and gets into the distributor, opens the distribution branch pipe that needs to use and sweeps the cooling to the super punctuation of supply-air duct temperature.
Further, the dispenser inner diameter is 200 mm.
Furthermore, branch pipes are respectively arranged on the distribution branch pipes, one end of each distribution branch pipe is communicated with the inside of the distributor, the other end of each distribution branch pipe is sleeved with a rubber pipe, and the other end of each rubber pipe is butted with a metal pipe.
Further, a compressed air main valve is mounted on the compressed air main pipe to control the flow and pressure of the compressed air required in the distributor.
Furthermore, when the temperature of multiple points of the blast-furnace tuyere blast pipeline exceeds the standard, corresponding distribution branch pipes are connected by rubber pipes according to production requirements, and when a compressed air main valve is adjusted, the opening of the compressed air main valve is adjusted according to the compressed air flow condition required by blowing and cooling.
The utility model has the advantages that: through shunting compressed air, can blow down the cooling to a plurality of supply air duct temperature super-standard points, reduce the safe risk of wind gap supply air duct. The compressed air main valve is used for adjusting the flow of compressed air entering the distributor, so that the compressed air consumption can be saved to the greatest extent, the energy consumption cost is reduced, the convenience in use of the compressed air in the tuyere area of the blast furnace can be ensured, the compressed air can be reasonably distributed, the requirement of blowing and cooling a plurality of air supply pipeline temperature exceeding points at the same time is met, and the safety and controllability of the air supply pipeline in the tuyere area of the blast furnace are ensured.
Drawings
FIG. 1 is a schematic structural view of the present invention;
3 FIG. 3 2 3 is 3 a 3 sectional 3 view 3 A 3- 3 A 3 of 3 FIG. 3 1 3; 3
Fig. 3 is a sectional view B-B in fig. 1.
In the figure: 1-distributor, 2-branch valve, 3-distribution branch pipe, 4-main valve and 5-compressed air main pipe.
Detailed Description
In the description of the present invention, it is to be understood that the terms "central," "longitudinal," "lateral," "up," "down," "front," "back," "left," "right," "vertical," "horizontal," "top," "bottom," "inner," "outer," and the like are based on the orientations and positional relationships illustrated in the drawings and are used merely for convenience in describing the present invention and to simplify the description, and are not intended to indicate or imply that the referenced device or element must have a particular orientation, be constructed and operated in a particular orientation, and are not to be construed as limiting the present invention unless otherwise specified.
The present invention will be further explained with reference to the drawings and examples.
Referring to fig. 1-3, a blowing and cooling device for a blast furnace tuyere blast pipeline comprises a cylindrical distributor 1, wherein holes are arranged on two mutually perpendicular surfaces of the distributor 1 at equal intervals, distribution branch pipes 3 are welded at the positions of the holes in a sealing mode respectively, one side of the distributor 1 is provided with a hole in butt joint with a compressed air main pipe 5, compressed air enters the distributor 1 through the compressed air main pipe 5, and the distribution branch pipes 3 required to be used are opened to blow and cool an over-standard temperature point of the blast pipeline.
Further, the dispenser 1 has an inner diameter of 200 mm.
Furthermore, branch pipes 2 are respectively arranged on the distribution branch pipes 3, one ends of the distribution branch pipes 3 are communicated with the interior of the distributor 1, the other ends of the distribution branch pipes are sleeved with rubber tubes, and the other ends of the rubber tubes are butted with metal tubes.
Further, a compressed air main valve 4 is installed on the compressed air main pipe 5 to control the flow and pressure of the compressed air required in the distributor 1.
Furthermore, when the temperature of multiple points of the blast-furnace tuyere blast pipeline exceeds the standard, corresponding distribution branch pipes 3 are connected by rubber pipes according to production requirements, and when the compressed air main valve 4 is adjusted, the opening degree of the compressed air main valve 4 is adjusted according to the compressed air flow condition required by blowing and cooling.
The present invention is not limited to the above-described embodiments, and various modifications and variations of the present invention are intended to be included within the scope of the claims and the equivalent technology of the present invention if they do not depart from the spirit and scope of the present invention.
Claims (5)
1. The utility model provides a be used for blast furnace tuyere supply air duct to sweep heat sink which characterized in that: the air supply pipeline temperature control device comprises a cylindrical distributor, wherein the two mutually perpendicular surfaces of the distributor are respectively provided with holes which are arranged at equal intervals, the holes are respectively hermetically welded with distribution branch pipes, one side of the distributor is provided with a hole which is in butt joint with a compressed air main pipe, compressed air enters the distributor through the compressed air main pipe, and the distribution branch pipes which need to be used are opened to blow and cool air supply pipeline temperature superscript points.
2. The blowing and cooling device for the tuyere blast pipe of the blast furnace as claimed in claim 1, wherein: the distributor internal diameter is 200 mm.
3. The blowing and cooling device for the tuyere blast pipe of the blast furnace as claimed in claim 1, wherein: and branch pipes are respectively provided with a branch pipe valve, one end of each branch pipe is communicated with the inside of the distributor, the other end of each branch pipe is sleeved with a rubber pipe, and the other end of each rubber pipe is butted with a metal pipe.
4. The blowing and cooling device for the tuyere blast pipe of the blast furnace as claimed in claim 1, wherein: the compressed air manifold is provided with a compressed air manifold valve to control the flow and pressure of the compressed air required in the distributor.
5. The blowing and cooling device for the tuyere blast pipe of the blast furnace as claimed in claim 1, wherein: when the multi-point temperature of the blast-furnace tuyere air supply pipeline exceeds the standard, the corresponding number of distribution branch pipes are connected by rubber pipes according to production requirements, and when the compressed air main valve is adjusted, the opening of the compressed air main valve is adjusted according to the compressed air flow condition required by blowing and cooling.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201920333153.6U CN209778915U (en) | 2019-03-16 | 2019-03-16 | Blowing and cooling device for blast furnace tuyere air supply pipeline |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201920333153.6U CN209778915U (en) | 2019-03-16 | 2019-03-16 | Blowing and cooling device for blast furnace tuyere air supply pipeline |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| CN209778915U true CN209778915U (en) | 2019-12-13 |
Family
ID=68798086
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN201920333153.6U Active CN209778915U (en) | 2019-03-16 | 2019-03-16 | Blowing and cooling device for blast furnace tuyere air supply pipeline |
Country Status (1)
| Country | Link |
|---|---|
| CN (1) | CN209778915U (en) |
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2019
- 2019-03-16 CN CN201920333153.6U patent/CN209778915U/en active Active
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