CN214115686U

CN214115686U - Strip steel rapid stabilization cooling device

Info

Publication number: CN214115686U
Application number: CN202023268921.6U
Authority: CN
Inventors: 周延
Original assignee: Individual
Current assignee: Individual
Priority date: 2020-12-30
Filing date: 2020-12-30
Publication date: 2021-09-03
Anticipated expiration: 2030-12-30

Abstract

The utility model discloses a belted steel rapid stabilization cooling device relates to hot-galvanize production technical field for solve prior art and can not only keep belted steel steady operation, keep higher cooling rate's problem again. The device comprises: the air box is provided with a pair of air boxes, the pair of air boxes comprises a plurality of nozzle main pipes which are divided into a left row and a right row and are distributed in parallel, and each nozzle main pipe comprises two rows of nozzles; the strip steel is arranged on the symmetrical center plane of the left and right rows of nozzle main pipes, and cooling medium enters the pair of air boxes through the fan and the connecting pipeline and is sprayed out of the nozzles onto the strip steel through the left and right rows of nozzle main pipes. Can ensure that the intermediate strip steel keeps stable and rapid cooling in the high-speed operation process.

Description

Strip steel rapid stabilization cooling device

Technical Field

The utility model relates to a hot-galvanize production technical field, in particular to belted steel rapid stabilization cooling device.

Background

On a continuous hot galvanizing production line, after a galvanizing process is finished, strip steel needs to be rapidly cooled and solidified and keeps stable operation.

In the prior art, no technique can keep the stable running of the strip steel and the high cooling rate. Most of the technologies mainly adopt cooling, the stable operation of the strip steel cannot be maintained, the strip steel is often twisted, scratched and unstably spangled in the section, and in addition, some technologies sacrifice the production speed of the strip steel for stability, so that the yield is reduced.

SUMMERY OF THE UTILITY MODEL

The utility model provides a belted steel rapid stabilization cooling device for solve prior art and can not both keep belted steel steady operation, keep higher cooling rate's problem again.

In order to achieve the above purpose, the utility model provides the following technical scheme:

the utility model discloses a belted steel rapid stabilization cooling device, include: the air box is provided with a pair of air boxes, the pair of air boxes comprises a plurality of nozzle main pipes which are divided into a left row and a right row and are distributed in parallel, and each nozzle main pipe comprises two rows of nozzles; the strip steel is arranged on the symmetrical center plane of the left and right rows of nozzle main pipes, and cooling medium enters the pair of air boxes through the fan and the connecting pipeline and is sprayed out of the nozzles onto the strip steel through the left and right rows of nozzle main pipes.

Furthermore, the distances between the central lines of all the nozzles and the intersection points of the strip steel in the horizontal direction and the vertical direction are equal, and the distance between the central lines of the nozzles and the intersection points of the strip steel in the horizontal direction and the vertical direction is set as a second distance.

Furthermore, the nozzles on the nozzle main pipe at the same horizontal height are distributed in an asymmetric crossed manner. Preferably, the distance between the adjacent nozzles on the left and right sides is half of the second distance.

Furthermore, two rows of nozzles on any one nozzle main pipe are distributed in an asymmetric crossed manner. Preferably, the distance between two adjacent vertical rows of nozzles is half of the second distance.

Furthermore, two rows of nozzles on any one nozzle main pipe form the same first included angle with the horizontal line. Preferably, the first included angle is between 15 ° and 22.5 °.

Furthermore, two rows of nozzles on any one nozzle main pipe form the same second included angle with the vertical line. Preferably, the second included angle is between 15 ° and 22.5 °.

The utility model provides a belted steel rapid stabilization cooling device can ensure that middle belted steel is at high-speed operation in-process, the cooling of remain stable and quick. The distances between the central lines of all the nozzles and the cross points of the middle strip steel in the horizontal direction and the vertical direction are the same, and the opposite nozzles are asymmetric. The same spacing ensures the stability of the strip in motion, while in the case of an asymmetrical distribution of the nozzles, the heat exchange efficiency is much higher than in the case of a symmetrical distribution of the nozzles. Compared with the prior art, the method has the advantages of advancement and practical value.

Drawings

The accompanying drawings, which are described herein, serve to provide a further understanding of the invention and constitute a part of this specification, and the exemplary embodiments and descriptions thereof are provided for explaining the invention without unduly limiting it. In the drawings:

FIG. 1 is a schematic structural view of a rapid and stable cooling device for strip steel in embodiment 1 of the present invention;

FIG. 2 is a vertical layout view of the nozzle main pipe and the nozzles of the rapid and stable cooling device for strip steel of embodiment 1 of the present invention;

FIG. 3 is a left and right side view of FIG. 2 of the cooling device for rapidly and stably cooling strip steel of embodiment 1 of the present invention;

FIG. 4 is a horizontal layout view of the nozzle main pipe and the nozzles of the rapid and stable cooling device for strip steel of embodiment 1 of the present invention;

in the figure: the air box comprises a fan 1, a connecting pipeline 2, an air box 3, a nozzle 4 main pipe, a nozzle 5, a first distance A, a second distance D, a third distance C, a first included angle X and a second included angle B.

Detailed Description

The technical solutions in the embodiments of the present invention will be described clearly and completely with reference to the accompanying drawings in the embodiments of the present invention, and it is obvious that the described embodiments are only some embodiments of the present invention, not all embodiments.

Embodiment 1, the device for rapidly and stably cooling strip steel of this embodiment, as shown in fig. 1 to 4, includes: the air blower comprises a blower 1 and an air box 3, the blower 1 and the air box 3 are connected through a connecting pipeline 2, the air box 3 is provided with a pair of air boxes, a plurality of nozzle main pipes 4 which are distributed in parallel are divided into a left row and a right row between the pair of air boxes 3, each nozzle main pipe 4 comprises two rows of nozzles 5, and strip steel is arranged at the symmetrical center plane of the left row and the right row of nozzle main pipes 4. Cooling medium (including expanding but not limited to air, atomizing gas, nitrogen-hydrogen mixed gas etc.) passes through fan 1, connecting tube 2 and gets into a pair of vertical relative bellows 3 that sets up, then on the way through a plurality of nozzle female pipes 4, finally by a large amount of nozzles 5 blowout to belted steel, realize the heat exchange.

More specifically, as shown in fig. 1, the fan 1, the connecting pipeline 2 and the wind box 3 are all kept consistent with the center line of the strip steel, so that the medium is uniformly distributed in the nozzle main pipe 4, and the stability of the device is further ensured.

As shown in fig. 2 and 3, the nozzle main pipes 4 between a pair of wind boxes 3 are all arranged in parallel and are symmetrically arranged in two left and right rows, and meanwhile, in the vertical direction of each row of nozzle main pipes 4, the first distance a between the nozzle main pipes 4 is completely consistent, in the embodiment, a is preferably greater than or equal to 90mm, so that air after heat exchange can be normally discharged out of a heat exchange area, if a is less than 90mm, the effect of discharging the air out of the heat exchange area is relatively poor, turbulence is easily formed, and the strip steel is unstable relative to a preferred value and even shakes violently.

The crossing points of the central lines of all the nozzles 5 and the middle strip, that is, the points where the medium is finally sprayed onto the surface of the strip through the nozzles 5, are uniformly distributed in the horizontal direction and the vertical direction, and the distance is the second distance D, that is, the distance between the central lines of all the nozzles 5 and the crossing points of the strip in the horizontal direction and the vertical direction is equal, the device is most stable, the cooling effect is also the best, and D is preferably between 100mm and 200 mm.

Although the nozzle header 4 at the same height is symmetrically disposed as shown in fig. 2, it can be seen from fig. 3 and 4 that the nozzles 5 on the nozzle header 4 at the same height are asymmetric, and in this embodiment, the distance between the adjacent nozzles 5 on the left and right sides is preferably D/2, and it can be seen from fig. 3 that the nozzles 5 in two rows on any one nozzle header 4 are not symmetrically disposed, and the distance between the adjacent nozzles 5 in the upper and lower rows is D/2. Thus, the heat exchange efficiency is higher and the heat loss is less.

As can be seen from fig. 2, the nozzles 5 are arranged in two rows on each nozzle main pipe 4, and each row forms a first included angle X with the horizontal line, preferably, the included angle X is 15 ° to 22.5 ° in the embodiment, so that the cooling effect is better, and therefore, the included angle 2X between the two rows of nozzles 5 is preferably 30 ° to 45 °. In addition, referring to fig. 4, all nozzles 5 present a certain second angle B with the vertical, a preferred value of B in this embodiment being between 15 ° and 22.5 °.

The third distance C between the outlets of all the nozzles 5 and the intermediate strip is between 70mm and 130mm, and more preferably 100 mm. In addition, as can be seen from fig. 4, the pitch of all the nozzles 5 at the same height in the horizontal direction is also preferably the second pitch D.

In conclusion, in the strip steel rapid and stable cooling device of the embodiment, the two air boxes 3 are oppositely arranged, the two air boxes 3 are communicated with each other through the plurality of nozzle main pipes 4, the plurality of nozzle main pipes 4 are mutually parallel and are uniformly distributed along the vertical direction, the nozzle main pipes 4 are symmetrically arranged in two rows in the left-right direction, two rows of nozzles 5 are distributed on each nozzle main pipe 4 according to a certain angle, each row of nozzles 5 are uniformly distributed, and although the nozzle main pipes 4 are symmetrically arranged, the nozzles 5 on the nozzle main pipes 4 at the same height are never symmetrical but are arranged in a staggered manner. The utility model not only can keep the strip steel stable in the cooling process, has little shake, but also can maximize the cooling speed of the strip steel.

It will be apparent to those skilled in the art that various changes and modifications may be made without departing from the spirit and scope of the invention. Thus, if such modifications and variations of the present invention fall within the scope of the claims and their equivalents, the present invention is also intended to include such modifications and variations.

Claims

1. The utility model provides a belted steel rapid stabilization cooling device which characterized in that includes: the air box is provided with a pair of air boxes, the pair of air boxes comprises a plurality of nozzle main pipes which are divided into a left row and a right row and are distributed in parallel, and each nozzle main pipe comprises two rows of nozzles;

the strip steel is arranged on the symmetrical center plane of the left and right rows of nozzle main pipes, and cooling medium enters the pair of air boxes through the fan and the connecting pipeline and is sprayed out of the nozzles onto the strip steel through the left and right rows of nozzle main pipes.

2. The rapid stabilizing cooling apparatus for steel strip as claimed in claim 1, wherein the distances between the center lines of all said nozzles and the intersections of the steel strip in the horizontal direction and the vertical direction are equal, and the distances between the center lines of said nozzles and the intersections of the steel strip in the horizontal direction and the vertical direction are set to a second distance.

3. The rapid stabilizing cooling device for steel strip according to claim 2, wherein the nozzles of said nozzle main pipes at the same level are asymmetrically distributed in a crossing manner.

4. The apparatus for rapidly and stably cooling a steel strip as claimed in claim 3, wherein the interval between the adjacent nozzles on the left and right sides of the horizontal direction is one-half of said second interval.

5. The rapid stabilizing cooling apparatus for steel strip as claimed in claim 2, wherein the two rows of nozzles of any one of said nozzle headers are asymmetrically and crosswise arranged.

6. The apparatus for rapidly and stably cooling a steel strip as claimed in claim 5, wherein the interval between two adjacent rows of vertically arranged nozzles is one-half of said second interval.

7. The rapid and stable cooling device for strip steel as claimed in claim 2, wherein the two rows of nozzles of any one of said nozzle headers are all at the same first angle to the horizontal.

8. The apparatus for rapidly and stably cooling the steel strip as claimed in claim 7, wherein the first angle is between 15 ° and 22.5 °.

9. The rapid stabilizing cooling apparatus for strip steel as claimed in claim 2 wherein the two rows of nozzles in any one of said nozzle headers are at the same second angle to the vertical.

10. The apparatus for rapidly and stably cooling strip steel as claimed in claim 9, wherein said second angle is between 15 ° and 22.5 °.