WO2020119204A1

WO2020119204A1 - Spray cooling device capable of improving plate shape of strip

Info

Publication number: WO2020119204A1
Application number: PCT/CN2019/106447
Authority: WO
Inventors: 黎浩; 卢禹龙; 田莺
Original assignee: 中冶南方工程技术有限公司
Priority date: 2018-12-12
Filing date: 2019-09-18
Publication date: 2020-06-18
Also published as: CN109439883A

Abstract

The present invention relates to a spray cooling device capable of improving the plate shape of a strip. The spray cooling device comprises a plurality of lateral spray tubes successively arranged along a running direction of a strip. The axial direction of each lateral spray tube is perpendicular to the running direction of the strip. A plurality of middle nozzles are arranged on each lateral spray tube along the axial direction thereof. The spray cooling device further comprises two groups of longitudinal spray tubes. The two groups of longitudinal spray tubes are arranged at two sides of the lateral spray tubes along the axial direction of the lateral spray tubes, and the longitudinal spray tubes are axially parallel to the running direction of the strip. A plurality of side nozzles are arranged on the longitudinal spray tubes along the axial directions thereof. By means of arranging the longitudinal spray tubes to cooperate with lateral spray tubes, different spray cooling coverage widths may be obtained, so that a corresponding spray width may be selected according to a production condition. At least, the longitudinal spray tubes are turned on to perform auxiliary spraying when the strip has 1/8 edge waves. Different cooling rates on the strip will cause different deformation rates under the action of large tension, so that the edge waves on the strip are finally reduced or eliminated, and thus the plate shape of the strip may be improved.

Description

Spray cooling device capable of improving strip shape

Technical field

The invention belongs to the technical field of metallurgy, in particular to the technical field of metal strip annealing, in particular to a spray cooling device capable of improving the strip shape.

Background technique

In the field of continuous annealing of metal strips, different annealing processes correspond to different equipment configurations. On the annealing line without air cooling section, the outlet of the annealing furnace is usually equipped with a water spray cooler. According to the speed of the unit, the water spray cooler is equipped with different numbers of nozzles. The pressurized cooling water passes through the nozzles on the nozzles to produce an atomized jet of a certain shape to cool the metal strip to a temperature that meets the process requirements.

In the actual production process, it often happens that the shape of the metal strip deteriorates after a series of annealing processes in the annealing furnace, and the most common of these is the edge wave of the strip. The undulation degree of the side waves is usually quantified by the degree of emergency, such as 0.8%, 1.2%, etc., and it is divided into 1/4 waves and 1/8 waves according to the location of the waves. In order to solve the side wave problem, it is often necessary to adjust the heating method of the annealing furnace and the cooling method of the protective gas circulation jet cooling section. Due to the cumbersome process of adjusting the heating and cooling methods of the annealing furnace, it will reduce production efficiency and increase energy consumption to a certain extent.

Summary of the invention

The embodiment of the invention relates to a spray cooling device capable of improving the strip plate shape, and can at least solve some defects of the prior art.

An embodiment of the present invention relates to a spray cooling device capable of improving the strip shape of a strip, including a plurality of lateral nozzles arranged in sequence along the strip running direction, and the axial direction of each lateral nozzle is perpendicular to the strip running direction , Each of the lateral nozzles has a plurality of central nozzles arranged along its own axis, and further includes two sets of longitudinal nozzles, and the two groups of the longitudinal nozzles are arranged in the lateral nozzles along the axial direction of the lateral nozzles On both sides of the tube, the longitudinal nozzle is axially parallel to the running direction of the strip, and a plurality of side nozzles are arranged on the longitudinal nozzle along its own axis.

As one of the embodiments, each of the transverse nozzles includes a plurality of narrow-width nozzles for normal spraying and a plurality of wide-width nozzles for improving 1/4 side waves of the strip, and the width The web nozzles are alternately arranged with the narrow web nozzles.

As one of the embodiments, the number of middle nozzles on the wide nozzle is two more than the number of middle nozzles on the narrow nozzle, and the arrangement distance of the nozzles on the wide nozzle is different from that of the narrow nozzle The nozzles on the nozzle are arranged at the same pitch.

As one of the embodiments, the longitudinal nozzle is rotatably installed and the axis of the rotating shaft is parallel to the running direction of the strip.

As one of the embodiments, the spray cooling device capable of improving the strip plate shape further includes a spray tank having a strip inlet and a strip outlet and at the strip inlet and the strip outlet A strip running channel is formed between them, and each of the transverse nozzles and each of the longitudinal nozzles are installed in the spray tank.

As one of the embodiments, a return port is provided at the bottom of the spray tank and a filter structure is provided at the return port.

As one of the embodiments, each of the lateral nozzles includes a nozzle body for installing a corresponding nozzle and a nozzle sleeve installed on the shower tank, and the nozzle body is detachably mounted on the In the nozzle sleeve, an overflow channel is provided in the nozzle sleeve to allow the corresponding nozzle jet to pass through.

As one of the embodiments, a movable flange is provided on the nozzle body and a fixed flange is provided at the corresponding end of the nozzle sleeve, the movable flange is located outside the fixed flange and passes The bolt is connected with the fixed flange, and the fixed flange is fixedly connected with the spray groove.

As one of the embodiments, the bolt holes on the movable flange are arc-shaped holes, and the circle where each arc-shaped hole is located is coaxial with the nozzle body.

As one of the embodiments, each of the spray pipe sleeves can be detachably installed on the spray tank.

The embodiments of the present invention have at least the following beneficial effects:

The spray cooling device provided by the present invention can obtain different spray cooling coverage widths by setting longitudinal spray pipes and cooperating with the horizontal spray pipes, so that the corresponding spray width can be selected according to production conditions, at least, appearing in the strip When the 1/8 edge wave is turned on, the longitudinal nozzle is opened for auxiliary spraying. The different cooling rates on the strip will produce different deformation rates under the action of large tension, so that the edge wave on the strip can be finally reduced or eliminated Therefore, the strip shape can be improved.

BRIEF DESCRIPTION

In order to more clearly explain the embodiments of the present invention or the technical solutions in the prior art, the following will briefly introduce the drawings required in the embodiments or the description of the prior art. Obviously, the drawings in the following description are only These are some embodiments of the present invention. For those of ordinary skill in the art, without paying any creative work, other drawings can be obtained based on these drawings.

1 is a schematic structural view of a spray cooling device according to Embodiment 1 of the present invention from a perspective;

2 is a schematic structural view of the spray cooling device provided in Embodiment 1 of the present invention from another perspective;

3 is a schematic diagram of a narrow-spray spray cooling working mode of a spray cooling device according to Embodiment 1 of the present invention;

4 is a schematic diagram of a wide spray cooling working mode of a spray cooling device according to Embodiment 1 of the present invention;

5 is a schematic diagram of a full-scale spray cooling working mode of the spray cooling device provided in Embodiment 1 of the present invention;

6 is a schematic diagram of an arrangement structure of an injection pipe provided by Embodiment 2 of the present invention;

7 is a side view of the movable flange provided by Embodiment 2 of the present invention.

detailed description

The technical solutions in the embodiments of the present invention will be described clearly and completely in conjunction with the drawings in the embodiments of the present invention. Obviously, the described embodiments are only a part of the embodiments of the present invention, but not all the embodiments. Based on the embodiments of the present invention, all other embodiments obtained by those of ordinary skill in the art without making creative efforts fall within the protection scope of the present invention.

Example one

As shown in FIGS. 1 and 2, an embodiment of the present invention provides a spray cooling device capable of improving the strip shape, which includes a plurality of lateral nozzles 2 arranged in sequence along the strip running direction, each of the lateral nozzles 2 The axial direction is perpendicular to the running direction of the strip, and each of the transverse nozzles 2 has a plurality of central nozzles arranged along its own axial direction. Generally, the axial direction of the transverse nozzle 2 is horizontal, which is perpendicular to the strip running direction, that is, parallel to the width direction of the strip; generally, the above transverse nozzle 2 is provided above and below the strip running channel To spray the upper and lower surfaces of the strip. Preferably, as shown in FIGS. 1 and 2, the spray cooling device further includes two sets of longitudinal nozzles 3, and the two sets of the longitudinal nozzles 3 are arranged in the lateral nozzles 2 along the axial direction of the lateral nozzles 2 On both sides, the longitudinal nozzle 3 is axially parallel to the strip running direction, and a plurality of side nozzles are arranged on the longitudinal nozzle 3 along its own axis. Understandably, the axial direction of the longitudinal nozzle 3 is horizontal, which is parallel to the running direction of the strip, that is, parallel to the length direction of the strip. Similarly, longitudinal nozzles 3 are provided above and below the strip running channel, that is, each group of longitudinal nozzles 3 includes an upper longitudinal nozzle 3 and a lower longitudinal nozzle 3, which are used to respectively perform the upper and lower surfaces of the strip edges Spraying; generally, the two sides of the horizontal nozzle 2 are the operating side and the transmission side, respectively, a vertical nozzle 3 is arranged above and below the operating side, and a longitudinal nozzle 3 is arranged above and below the transmission side, respectively.

The spray cooling device provided in this embodiment can obtain different spray cooling coverage widths by setting the longitudinal spray pipe 3 and cooperating with the horizontal spray pipe 2, so that the corresponding spray width can be selected according to the production situation, at least, in When the 1/8 edge wave occurs on the strip, the longitudinal nozzle 3 is turned on for auxiliary spraying. The different cooling rates on the strip will produce different deformation rates under the action of large tension, so that the side wave on the strip can be finalized. Reduced or eliminated, so the strip shape can be improved.

Generally, the above-mentioned spray cooling device capable of improving the strip plate shape further includes a spray tank 1 having a strip inlet and a strip outlet, and between the strip inlet and the strip outlet A strip running channel is formed between each, and each of the lateral nozzles 2 and each of the longitudinal nozzles 3 are installed in the spray tank 1. Further, a backflow port 11 is provided at the bottom of the spray tank 1 and a filter structure 12 is provided at the backflow port 11, the filter structure 12 may use a filter net or the like; the bottom of the spray tank 1 is preferably provided as a cone Bucket shape, easy to collect spray liquid.

Further preferably, as shown in FIGS. 3 and 4, each of the transverse nozzles 2 includes a plurality of narrow-width nozzles 21 for normal spraying and a plurality of wide-width nozzles for improving 1/4 side waves of the strip Nozzle 22, and the wide nozzle 22 and the narrow nozzle 21 are alternately arranged, that is, there is a narrow nozzle 21 between every two adjacent wide nozzles 22, and every two adjacent narrow nozzles There is a wide nozzle 22 between the nozzles 21.

Then, in addition to obtaining two different spray cooling coverage widths based on the cooperation of the longitudinal nozzle 3 and the lateral nozzle 2, there are two different spray cooling coverage widths in the lateral nozzle 2 to further expand the spray The working mode of the shower cooling device can effectively reduce or eliminate the side waves and other defects on the strip. specifically:

As shown in Figure 3, when the annealing line is in good production condition, there is no obvious edge wave in the strip, and only the narrow-width nozzles 21 need to be opened to work. The spray cooling device works in the narrow-width spray cooling working mode;

As shown in Fig. 4, when a 1/4 edge wave occurs in the strip, each wide-width nozzle 22 is turned on, and each narrow-width nozzle 21 is closed. The spray cooling device works in the wide-spray cooling mode;

As shown in Fig. 5, when a 1/8 edge wave appears on the strip, the wide nozzles 22 are opened, the narrow nozzles 21 are closed, and the longitudinal nozzles 3 are opened at the same time. The spray cooling device works in full-spray cooling mode.

Different cooling rates on the strip will produce different deformation rates under the action of large tension, and the side waves on the strip can be reduced or eliminated eventually.

In addition, based on the above-described structure in which the wide nozzle 22 and the narrow nozzle 21 are provided, different strip cooling rates can also be obtained, which can be applied to the annealing production of steel types required for different cooling rates/annealing rates. For example, in the narrow-spray spray cooling working mode, a certain number of wide-spray nozzles 22 can be opened correspondingly according to process adjustment or fluctuation to achieve the desired spray cooling speed.

It is easy to understand that the middle nozzle arrangement on the wide nozzle 22 and the middle nozzle arrangement on the narrow nozzle 21 are easily determined by those skilled in the art. Taking the strip width as 2D as an example, each side of the centerline of the unit The strip width is D, with the center line of the unit as the reference line, the coordinate of the strip edge on the drive side is -D, the coordinate on the strip edge of the operation side is D, and the spray coverage of the wide nozzle 22 From -3/4D to 3/4D, the spray coverage of the narrow nozzle 21 is selected within the spray coverage of the wide nozzle 22 according to actual operating conditions, for example, -3/5D to 3/5D.

In this embodiment, as shown in FIGS. 3 and 4, the arrangement position of the middle nozzle on the wide nozzle 22 is the same as the arrangement position of the middle nozzle on the narrow nozzle 21, and the nozzle arrangement interval on the wide nozzle 22 is narrow and narrow. The arrangement intervals of the nozzles on the web nozzle 21 are the same, but the number of central nozzles on the wide nozzle 22 is two more than the number of central nozzles on the narrow nozzle 21, which can meet the existing production requirements.

In another embodiment, the spray coverage of each of the above-mentioned transverse nozzles 2 is the same, and the longitudinal nozzle 3 is rotatably installed and the axis of the rotating shaft is parallel to the strip running direction. The spray width can simultaneously cover the 1/8 edge wave appearance position and the 1/4 edge wave appearance position of the strip. The structure is simple and easy to operate, which can reduce equipment investment and maintenance costs. The rotation of the longitudinal nozzle 3 can be realized by a conventional rotation driving device such as a motor+reducer, or can be manually driven. In one of the embodiments, the longitudinal nozzle 3 is fixed on the spray tank 1 by means of flange connection, and the screw holes on the flange are arc-shaped holes, and the arc-shaped The nozzle 3 is coaxial, that is, the circular arc-shaped holes are arranged annularly with respect to the axis of the longitudinal nozzle 3, based on this structure, the flange of the longitudinal nozzle 3 can be allowed to rotate a certain angle relative to the spray tank 1, that is, the longitudinal direction is allowed The spray pipe 3 rotates at a certain angle relative to the spray tank 1 to realize the change of the spray position of the longitudinal spray pipe 3.

Each spray pipe extends out of the spray tank 1 and is connected to the liquid inlet pipe 5 (which can be connected by a quick-change joint 4). Each liquid inlet pipe 5 is provided with a control valve 6 and is connected to the liquid collecting main pipe 7. The control valve 6 may be a manual valve or an automatic control valve such as a solenoid valve.

Example 2

This embodiment provides an on-line replaceable spray pipe, which can be used in the above-mentioned first embodiment as a horizontal spray pipe, and of course, can also be used as a vertical spray pipe.

Specifically, as shown in FIG. 6, the spray pipe includes a nozzle body 201, and the nozzle body 201 is provided with a plurality of nozzles. Generally, the nozzles are arranged in sequence along the axial direction of the nozzle body 201, and each nozzle The injection direction is the same, such as all upward or downward injection. One end of the nozzle body 201 is a liquid inlet end for connecting to the liquid inlet pipe 5, the other end is a non-liquid inlet end and is generally in a closed state, and the liquid entering the pipe is ejected from each nozzle. The spray pipe further includes a spray pipe sleeve 202 for mounting on the above-mentioned spray tank, the spray pipe body 201 is detachably installed in the spray pipe sleeve 202, and is mounted on the spray pipe sleeve 202 The upper opening is provided with an overflow channel that can allow jets of each nozzle to pass through.

Since the spray pipe provided in this embodiment is provided with a spray pipe sleeve 202, when the spray pipe needs to be cleaned and maintained, after the liquid supply is suspended, the spray pipe body 201 can be removed from the spray pipe sleeve 202, and the cleaning is completed. After that, install the nozzle body 201 into the nozzle sleeve 202. The nozzle sleeve 202 can prevent the nozzle body 201 from contacting the strip during the maintenance process. The entire maintenance process does not affect normal production, so it can be achieved without Shutdown online to maintain the spray tube, effectively improve production efficiency, can avoid the nozzle and strip scraping, thereby improving the yield rate and extending the service life of the spray tube.

For the above detachable connection structure of the nozzle body 201 and the nozzle sleeve 202, connection methods such as screw connection, wedge connection, snap connection, etc. may be used, and the specific structure is not shown here. In this embodiment, as a preferred embodiment, as shown in FIG. 6, a movable flange 203 is provided on the nozzle body 201 and a fixed flange 204 is provided on the corresponding end of the nozzle sleeve 202. The movable flange 203 is located outside the fixed flange 204 and is connected to the fixed flange 204 by bolts; the detachable connection structure between the movable flange 203 and the fixed flange 204 realizes the nozzle body 201 and The detachable connection structure between the nozzle sleeves 202 is simple in structure, stable and reliable in connection structure, easy to manufacture and realize, and can be used for the modification of the existing nozzle.

The movable flange 203 may be provided at the liquid inlet end of the nozzle body 201, or may be provided between the liquid inlet end of the nozzle body 201 and the nozzle, and the liquid inlet end is located outside the movable flange 203 to facilitate the connection with the liquid inlet pipe 5. It is easy to understand that the outer side of the fixed flange 204 is the side away from the lumen of the nozzle sleeve 202, and the nozzle body 201 passes through the central through hole of the fixed flange 204 and enters the nozzle sleeve 202, The movable flange 203 on the nozzle body 201 is blocked by the fixing flange 204 and fits with the fixing flange 204, and the two can be connected by bolts.

In order to facilitate the passage of the nozzle body 201 without colliding with the nozzle on the nozzle body 201, the diameter of the central through hole of the fixing flange 204 may be set to be greater than the sum of the outer diameter of the nozzle body 201 and the exposed length of the nozzle. In this embodiment, preferably, the diameter of the central through hole of the fixed flange 204 is approximately the same as the outer diameter of the nozzle body 201, which can improve the structural stability of the nozzle body 201 during the injection process, and the tube body vibrates/sloshing Smaller, and in order to facilitate the passage of the nozzle, an escape groove corresponding to the central through hole is correspondingly formed on the fixed flange 204, the escape groove extends radially along the fixed flange 204 and the extension length and groove width can fully allow the nozzle to pass through can.

Further preferably, as shown in FIG. 7, the bolt holes on the movable flange 203 are arc-shaped holes, and the circle where each arc-shaped hole is located is coaxial with the nozzle body 201, that is, each arc-shaped The holes are arranged annularly with respect to the axis of the nozzle body 201. Based on this structure, the movable flange 203 can be allowed to rotate a certain angle relative to the fixed flange 204, that is, the nozzle body 201 can be allowed to rotate a certain angle relative to the nozzle sleeve 202. Therefore, the spray angle of the nozzle can be adjusted according to the spraying needs, and the application range of the process can be widened. The circular arc-shaped hole is preferably a waist-shaped hole.

Continuing to optimize the structure of the above-mentioned injection pipe, it can be understood that the above-mentioned flow channel can be a continuous large opening, and the opening area should be able to cover the injection range of each nozzle at the nozzle sleeve 202; In the form of a flow hole, a plurality of flow holes are formed in the nozzle sleeve 202. The number of the flow holes and the nozzles are the same and are arranged one by one. The area of the flow holes can ensure that the nozzle jet passes completely. For the structure of the above nozzle with adjustable spray angle, the above flow channel should be able to be covered accordingly without affecting the flow or velocity of the nozzle jet. For example, for the structure of the flow hole, the structure of the arc slot can be used, the length corresponding It suffices to cover the rotation angle of the nozzle body 201.

Continuing to optimize the structure of the above-mentioned spray pipe, the non-inlet end of the nozzle body 201 is preferably connected with the nozzle sleeve 202 as a whole, so that the vibration generated on the nozzle body 201 can be more stably transmitted to the nozzle sleeve 202, Improve the working stability of the jet of the injection tube; for example, the two can be a detachable structure such as screw connection and clamping connection. Preferably, as shown in FIG. 6, the end of the nozzle sleeve 202 away from the inlet end of the nozzle body 201 (that is, the above-mentioned liquid inlet end) is provided with a positioning plug 206, and the nozzle body 201 is inserted in The positioning plug 206; wherein, the non-liquid inlet end of the nozzle body 201 may be a self-closing structure, that is, a nozzle plug 208 is provided, or it may be a through end and blocked by the positioning plug 206.

Further preferably, as shown in FIG. 6, a positioning plug 207 is provided on the nozzle body 201, the positioning plug 207 is pluggable connected to the positioning plug 206, the positioning plug 207 is fixedly fixed on the nozzle body 201 The non-liquid inlet end is connected to the positioning plug 206 to improve the sealing performance. Wherein, preferably, the positioning plug 207 is a tapered plug, the inner wall of the positioning wire plug 206 corresponds to a different diameter hole and closely fits with the outer wall of the positioning plug 207, the different diameter hole is also a self-positioning wire The opening end of the plug 206 is toward its inner side, and the diameter of the annular inner wall of the positioning plug 206 is sequentially reduced, and it is in the form of a truncated cone that tapers from the outside to the inside. It can closely contact with the positioning plug 207 of the conical plug type, effectively improving Sealing performance. For the above-mentioned structure provided with the nozzle plug 208, the above-mentioned reduced-diameter hole includes a tapered section and an equal-diameter section. The equal-diameter section is used to cooperate with the nozzle plug 208, and the tapered section is used to cooperate with the positioning plug 207.

Further preferably, as shown in FIG. 6, the positioning plug 207 is a compressibly deformable plug body, and a limiting snap ring 205 is provided on the nozzle body 201, and the limiting snap ring 205 is located on the positioning plug 207. The side close to the entrance end of the nozzle body 201 is in contact with the positioning plug 207. During the insertion of the positioning plug 207 and the positioning plug 206, the positioning plug 207 can be compressed and deformed to more closely contact the positioning plug 206. In order to improve the sealing performance, the limiting snap ring 205 can limit the positioning plug 207, which is preferably welded on the nozzle body 201, and the positioning plug 207 is preferably sleeved on the nozzle body 201 and is connected with the limiting card The ring 205 is fixedly connected, such as bonding.

Each nozzle body 201 preferably extends out of the nozzle sleeve 202 and is connected to the liquid inlet pipe 5 (which can be connected by a quick-change joint 4). Each liquid inlet pipe 5 is provided with a control valve 6 and is connected to the liquid collecting header 7 connection.

Preferably, each of the nozzle sleeves 202 can be detachably installed on the spray tank 1. During the shutdown of the unit, when the maintenance and repair of the spray tank 1 is required, close the control valves for safety 6. Pull out the nozzle casing 202 and the nozzle body 201 as a whole from the shower tank 1, so as to obtain enough space for maintenance. The nozzle sleeve 202 is detachably threaded and fixed on one side wall of the spray tank 1, for example, screw connection, tenon joint and other detachable installation methods can also be adopted; for the above, the nozzle sleeve 202 is fixed The structure of the flange 204 is preferably further detachably mounted on the groove wall of the spray tank 1 through the fixed flange 204, that is, in addition to the first bolt hole ring connected to the movable flange 203 on the fixed flange 204 There is also a second bolt hole ring connected to the groove wall of the spray tank 1.

Further, the end of the sleeve of the nozzle sleeve 202 in the spray tank 1 is supported on the support member 13 on the inner wall of the other side of the spray tank 1, which ensures the stability of the overall installation structure, and can be more The vibration of the nozzle body 201 is transmitted to the shower tank 1 well.

The above are only preferred embodiments of the present invention and are not intended to limit the present invention. Any modification, equivalent replacement, improvement, etc. made within the spirit and principle of the present invention should be included in the present invention. Within the scope of protection.

Claims

A spray cooling device capable of improving the strip plate shape includes a plurality of lateral nozzles arranged in sequence along the strip running direction, and the axial direction of each lateral nozzle is perpendicular to the strip running direction. A plurality of middle nozzles are arranged on the transverse nozzle along its own axis, and it is characterized in that it further includes two sets of longitudinal nozzles, and the two groups of the longitudinal nozzles are arranged in the transverse nozzle along the axial direction of the transverse nozzle On both sides, the longitudinal nozzle is axially parallel to the strip running direction, and a plurality of side nozzles are arranged on the longitudinal nozzle along its own axis.
The spray cooling device capable of improving the strip shape of a strip according to claim 1, wherein each of the transverse spray pipes includes a plurality of narrow-width spray pipes for normal spraying and for improving the strip A plurality of wide-width nozzles of 1/4 side waves, and the wide-width nozzles and the narrow-width nozzles are alternately arranged.
The spray cooling device capable of improving the strip plate shape according to claim 2, wherein the number of central nozzles on the wide-width nozzle is two more than the number of central nozzles on the narrow-width nozzle, And the arrangement interval of the nozzles on the wide nozzle is the same as the arrangement interval of the nozzles on the narrow nozzle.
The spray cooling device capable of improving the strip shape of the strip according to claim 1, wherein the longitudinal spray pipe is rotatably installed and the axis of the rotating shaft is parallel to the strip running direction.
The spray cooling device capable of improving the strip shape of a strip according to claim 1, further comprising a spray tank, the spray tank having a strip inlet and a strip outlet and at the strip inlet and A strip running channel is formed between the strip outlets, and each of the lateral spray pipes and each of the longitudinal spray pipes are installed in the spray tank.
The spray cooling device capable of improving the strip plate shape according to claim 5, wherein a backflow port is provided at the bottom of the spray tank and a filtering structure is provided at the backflow port.
The spray cooling device capable of improving the strip plate shape according to claim 5, wherein each of the lateral spray pipes includes a spray pipe body for mounting a corresponding nozzle and a spray pipe body installed on the spray tank In the nozzle sleeve, the nozzle body is detachably installed in the nozzle sleeve, and an overflow channel that allows the corresponding nozzle jet to pass is provided on the nozzle sleeve.
The spray cooling device capable of improving the strip shape of the strip according to claim 7, wherein a movable flange is provided on the nozzle body and a fixing method is provided on the corresponding end of the nozzle sleeve Lan, the movable flange is located on the outside of the fixed flange and is connected to the fixed flange by bolts, and the fixed flange is fixedly connected to the spray groove.
The spray cooling device capable of improving the strip plate shape according to claim 8, characterized in that the bolt holes on the movable flange are arc-shaped holes, and the circle and location of each of the arc-shaped holes is The nozzle body is coaxial.
The spray cooling device capable of improving the strip plate shape according to claim 7, characterized in that each of the spray pipe sleeves can be detachably installed on the spray tank.