CN210907418U - Controlled cooling air blowing device for rolled bar - Google Patents
Controlled cooling air blowing device for rolled bar Download PDFInfo
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- CN210907418U CN210907418U CN201921893242.2U CN201921893242U CN210907418U CN 210907418 U CN210907418 U CN 210907418U CN 201921893242 U CN201921893242 U CN 201921893242U CN 210907418 U CN210907418 U CN 210907418U
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- pipe
- blowing device
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Abstract
The utility model discloses a controlled cooling air-blowing device after rolling bar, relating to the technical field of steel rolling production equipment, comprising a straight pipe with the lower end connected with an annular round pipe, wherein the inner side of the annular round pipe is provided with a plurality of nozzle holes; the upper end of the straight pipe is connected with a reducing joint, the reducing joint is connected with a double external thread pipe, and the double external thread pipe is connected with a quick joint; 12 small nozzle holes are uniformly distributed on the inner side of the annular circular tube; the diameters of the straight pipe and the annular circular pipe are both 20 mm; the diameter of the small hole of the nozzle is 3 mm. The utility model discloses a place at the tapping hole of slow cooling section bamboo node pipe and advance between the steel mouth, can realize that the air-blowing device connects high-speed joint, is difficult for blockking up, non-deformable and air-blowing effect ideal, reach improvement work efficiency when effectively solving the air-blowing effect.
Description
Technical Field
The utility model relates to a steel rolling production facility technical field specifically is an air-blowing device that is used for cold section of rod back accuse.
Background
In the steel rolling production process, a bar production line adopts weak water penetration or other cooling control processes, the conventional post-rolling cooling control section of the bar adopts a water penetration device assembly, the water penetration device is internally provided with a multi-section venturi tube and a group of back-flushing gas nozzles, the surface temperature of a rolled piece can be taken away along with water through the relaxation of the venturi tube, however, if the existing back-flushing gas nozzles cannot effectively remove residual water and impurities on the surface of the rolled piece, the surface of the rolled piece is enabled to be supercooled to form a harmful tempering structure, and the produced rolled piece does not accord with the existing national standard.
SUMMERY OF THE UTILITY MODEL
The utility model provides a problem that solve provides a bar rolls back accuse cold air-blowing device, places the device at the tapping hole of slow cooling section bamboo joint pipe and advance between the steel mouth, can realize air-blowing device joint high-speed joint, difficult jam, non-deformable and air-blowing effect ideal, reaches improvement work efficiency when effectively solving the air-blowing effect.
In order to solve the above problem, the utility model discloses a technical scheme is: the nozzle comprises a straight pipe, the lower end of the straight pipe is connected with an annular round pipe, a passage is formed between the annular round pipe and the interior of the straight pipe, and a plurality of small nozzle holes are formed in the inner side of the annular round pipe; the upper end of the straight pipe is provided with threads connected with a reducer union, the reducer union is connected with a double-external-thread pipe, the double-external-thread pipe is connected with a quick connector, and the quick connector is connected with a blower through a hose.
In the above technical solution, a more specific technical solution may also be: 4-16 nozzle small holes are uniformly distributed on the inner side of the annular circular tube.
Further: 12 nozzle small holes are uniformly distributed on the inner side of the annular circular tube.
Further: the diameters of the straight pipe and the annular circular pipe are both 20 mm.
Further: the diameter of the small hole of the nozzle is 3 mm.
Since the technical scheme is used, compared with the prior art, the utility model following beneficial effect has: 1. the annular round pipe is fixed on the steel outlet of the slow cooling section bamboo joint pipe, when the bar is introduced into the steel inlet from the steel outlet, the nozzle small holes on the inner side of the annular round pipe blow the surface of the bar at the same time, so that residual water and impurities on the surface of the bar are effectively blown away, and the phenomenon that the surface of a rolled piece is overcooled to form a harmful tempering structure is prevented;
2. the 12 nozzle small holes are uniformly distributed on the inner side of the annular circular tube, so that the annular circular tube is prevented from being blocked by impurities such as iron oxide scales in water in the rolling process, and cannot collide with a rolled piece to cause damage in the rolling process;
3. the diameter of straight tube and annular pipe is 20mm in order not to disturb the cooling of rod, and the diameter is too big can reduce the cooling effect of rod, and the diameter undersize air-blowing effect is unsatisfactory, and rethread reducer union, two external screw thread pipes, quick-operation joint link to each other with the hair-dryer, and easy to assemble and dismantlement improve work efficiency.
Drawings
Fig. 1 is a schematic structural diagram of the present invention.
Fig. 2 is a schematic diagram of the operation of the present invention.
Detailed Description
The invention will be described in more detail with reference to the following examples:
the controlled cooling air blowing device after bar rolling shown in figure 1 comprises a straight pipe 1 of which the lower end is connected with an annular circular pipe 2, and the inner side of the annular circular pipe 2 is provided with a plurality of small nozzle holes 2-1; the upper end of the straight pipe 1 is connected with a reducing joint 1-1, the reducing joint 1-1 is connected with a double external thread pipe 1-2, and the double external thread pipe 1-2 is connected with a quick joint 1-3; 4-16 nozzle small holes 2-1 are uniformly distributed on the inner side of the annular circular tube 2; in the example, 12 nozzle small holes 2-1 are uniformly distributed on the inner side of the circular tube 2, the nozzle small holes 2-1 are too few, the air blowing effect is not good, the nozzle small holes 2-1 are too many, and water containing impurities such as iron scales on the surface of the bar is easy to blow into the nozzle small holes 2-1 to cause blockage during air blowing; the diameters of the straight pipe 1 and the annular circular pipe 2 are both 20 mm; the diameter of the nozzle orifice 2-1 is 3 mm.
When the device is used, the annular circular tube 2 is welded and fixed on the steel tapping hole 3 of the slow cooling section bamboo joint tube, the reducing joint 1-1 is screwed on the straight tube 1, the double external threaded tube 1-2 is screwed on the reducing joint 1-1, and finally the blowing hose 5 of the blower is connected with the double external threaded tube 1-2 through the quick joint 1-3. When the bar is introduced into the steel inlet 4 from the steel outlet 3, the nozzle small holes 2-1 on the inner side of the annular circular tube 2 blow the surface of the bar simultaneously, so that residual water and impurities on the surface of the bar are effectively blown away, and the phenomenon that the surface of a rolled piece is overcooled to form a harmful tempering structure is prevented, as shown in fig. 2.
Claims (5)
1. The utility model provides a bar post-rolling accuse cold air-blowing device which characterized in that: the device comprises a straight pipe, the lower end of which is connected with an annular round pipe, and the inner side of the annular round pipe is provided with a plurality of small nozzle holes; the upper end of the straight pipe is connected with a reducing joint, the reducing joint is connected with a double-external-thread pipe, and the double-external-thread pipe is connected with a quick joint.
2. The controlled cooling air-blowing device after bar rolling according to claim 1, characterized in that: 4-16 nozzle small holes are uniformly distributed on the inner side of the annular circular tube.
3. The controlled cooling air-blowing device after bar rolling according to claim 2, characterized in that: 12 nozzle small holes are uniformly distributed on the inner side of the annular circular tube.
4. A controlled cooling air-blowing device after rod rolling according to claim 1 or 3, characterized in that: the diameters of the straight pipe and the annular circular pipe are both 20 mm.
5. The controlled cooling air-blowing device after bar rolling according to claim 4, characterized in that: the diameter of the small hole of the nozzle is 3 mm.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201921893242.2U CN210907418U (en) | 2019-11-05 | 2019-11-05 | Controlled cooling air blowing device for rolled bar |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201921893242.2U CN210907418U (en) | 2019-11-05 | 2019-11-05 | Controlled cooling air blowing device for rolled bar |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| CN210907418U true CN210907418U (en) | 2020-07-03 |
Family
ID=71342877
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN201921893242.2U Active CN210907418U (en) | 2019-11-05 | 2019-11-05 | Controlled cooling air blowing device for rolled bar |
Country Status (1)
| Country | Link |
|---|---|
| CN (1) | CN210907418U (en) |
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2019
- 2019-11-05 CN CN201921893242.2U patent/CN210907418U/en active Active
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