CN116984395A - Guide and guard device of finishing mill group and hot rolled steel strip production system - Google Patents

Guide and guard device of finishing mill group and hot rolled steel strip production system Download PDF

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Publication number
CN116984395A
CN116984395A CN202311112449.2A CN202311112449A CN116984395A CN 116984395 A CN116984395 A CN 116984395A CN 202311112449 A CN202311112449 A CN 202311112449A CN 116984395 A CN116984395 A CN 116984395A
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CN
China
Prior art keywords
guard
guide
mill group
plate
finishing mill
Prior art date
Legal status (The legal status is an assumption and is not a legal conclusion. Google has not performed a legal analysis and makes no representation as to the accuracy of the status listed.)
Pending
Application number
CN202311112449.2A
Other languages
Chinese (zh)
Inventor
黄治东
Current Assignee (The listed assignees may be inaccurate. Google has not performed a legal analysis and makes no representation or warranty as to the accuracy of the list.)
Laiwu Steel Group Yinshan Section Steel Co Ltd
Original Assignee
Laiwu Steel Group Yinshan Section Steel Co Ltd
Priority date (The priority date is an assumption and is not a legal conclusion. Google has not performed a legal analysis and makes no representation as to the accuracy of the date listed.)
Filing date
Publication date
Application filed by Laiwu Steel Group Yinshan Section Steel Co Ltd filed Critical Laiwu Steel Group Yinshan Section Steel Co Ltd
Priority to CN202311112449.2A priority Critical patent/CN116984395A/en
Publication of CN116984395A publication Critical patent/CN116984395A/en
Pending legal-status Critical Current

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Classifications

    • B—PERFORMING OPERATIONS; TRANSPORTING
    • B21—MECHANICAL METAL-WORKING WITHOUT ESSENTIALLY REMOVING MATERIAL; PUNCHING METAL
    • B21B—ROLLING OF METAL
    • B21B39/00—Arrangements for moving, supporting, or positioning work, or controlling its movement, combined with or arranged in, or specially adapted for use in connection with, metal-rolling mills
    • B21B39/14—Guiding, positioning or aligning work
    • B—PERFORMING OPERATIONS; TRANSPORTING
    • B21—MECHANICAL METAL-WORKING WITHOUT ESSENTIALLY REMOVING MATERIAL; PUNCHING METAL
    • B21B—ROLLING OF METAL
    • B21B45/00—Devices for surface or other treatment of work, specially combined with or arranged in, or specially adapted for use in connection with, metal-rolling mills
    • B21B45/02—Devices for surface or other treatment of work, specially combined with or arranged in, or specially adapted for use in connection with, metal-rolling mills for lubricating, cooling, or cleaning
    • B21B45/0203—Cooling
    • B21B45/0209—Cooling devices, e.g. using gaseous coolants
    • B21B45/0215—Cooling devices, e.g. using gaseous coolants using liquid coolants, e.g. for sections, for tubes
    • B21B45/0233—Spray nozzles, Nozzle headers; Spray systems

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  • Engineering & Computer Science (AREA)
  • Mechanical Engineering (AREA)
  • Metal Rolling (AREA)

Abstract

The invention discloses a finishing mill group guide and guard device and a hot rolled steel strip production system, wherein the finishing mill group guide and guard device comprises: a support body; a nozzle for supplying cooling water to the finishing mill group; the upper guard plate is arranged at one end, far away from the finishing mill group, of the supporting main body and extends in the vertical direction; the lower guard plate is arranged on the supporting main body in a position-adjustable mode, and one side of the lower guard plate can be abutted to the surface of a roller of the finishing mill group. The guide and guard device of the finishing mill group can effectively solve the problem that cooling water or process water overflows to the surface of a hot rolled steel strip abnormally, so that the problem of cooling plate shape occurs, thereby improving the plate shape control precision, improving the quality assurance capability of the hot rolled steel strip, being beneficial to popularization, reducing the cost and enhancing the efficiency.

Description

Guide and guard device of finishing mill group and hot rolled steel strip production system
Technical Field
The invention relates to the field of metallurgical mechanical equipment, in particular to a guide and guard device of a finishing mill group and a hot rolled steel strip production system.
Background
In a hot rolled steel strip production line in a metallurgical plant, a finishing mill group is a critical process for final forming of the steel strip to achieve target size and shape requirements. Conventional hot rolled strip production line finishing mills generally comprise a finish rolling backing roll and a finish rolling working roll, wherein the working roll is directly attached to the strip for press working, and the hot rolled strip is at a high temperature of about 1000 ℃ at this time, so that the roll is required to be provided with roll cooling water in order to ensure continuous stability of the roll. Meanwhile, for the purposes of environmental protection and other requirements of the process, other process water such as water seal dust removal, rolling lubrication and the like is also arranged in the rolling mill. Therefore, a guard plate mechanism is generally arranged at the outlet of the finishing mill group and is used for installing and fixing a roller cooling water header, a roller cutting plate, other cooling water headers and other mechanisms.
In the prior art, in the actual running process of a hot rolled steel strip production line, equipment often has abnormal states due to other faults or ageing, such as the fact that roller cooling water cannot be completely attached to rollers, the problem that the angle of a water nozzle of the roller cooling water and other process water deviates, and the like. At this time, the roll cooling water and other process water of the rolling mill are easy to overflow, and leak from an outlet guide device of a finishing mill group, and spray on the surface of the hot steel strip, so that the steel strip is in a cooling uneven state in the transverse direction, and further the problem of cooling plate shape caused by inconsistent phase change speed of steel tissues is caused, the abnormal cooling plate shape is often not accepted by customers to cause quality objection, and the defect that part of the abnormal plate shape is light is also required to be eliminated by adding a withdrawal and straightening process and a finishing process subsequently, thereby increasing the processing cost and greatly influencing the quality of products and the control of the production cost.
Therefore, how to improve the reliability of the finishing train guide and guard device is a technical problem that the skilled person needs to solve at present.
Disclosure of Invention
The invention aims to provide a guide and guard device of a finishing mill group and a hot rolled steel strip production system, which can effectively prevent cooling water from flowing into the surface of the steel strip, ensure the quality reliability of the hot rolled steel strip and reduce the subsequent correction cost.
In order to achieve the above purpose, the present invention provides the following technical solutions:
a finishing train guide and guard comprising:
a support body;
a nozzle for supplying cooling water to the finishing mill group;
the upper guard plate is arranged at one end, far away from the finishing mill group, of the supporting main body and extends in the vertical direction;
the lower guard plate is arranged on the supporting main body in a position-adjustable mode, and one side of the lower guard plate can be abutted to the surface of a roller of the finishing mill group.
Preferably, the upper guard is detachably connected with the support body.
Preferably, the cross section of the upper guard plate is L-shaped, and the top of the upper guard plate extends along the vertical direction and the axial direction of the roller.
Preferably, the bottom of the upper guard plate is provided with a plurality of threaded holes, and the upper guard plate is connected with the supporting main body through bolts.
Preferably, the lifting device further comprises a driving component, one end of the driving component is connected with the supporting main body, the other end of the driving component is connected with the middle part of the lower guard, and the driving component can drive the lower guard to lift or fall.
Preferably, the end of the lower guard remote from the roller is hinged to the support body.
Preferably, an elastic component is arranged between the driving component and the lower guard.
Preferably, the support main body comprises a mounting seat and a support plate, the mounting seat is connected with a support device of the rolling mill unit, the support plate is positioned at the bottom of the mounting seat, a gap is reserved between the support plate and the rolling mill unit, and the upper guard is installed at one end of the support plate far away from the rolling mill unit.
Preferably, the nozzle is located between the support plate and the lower guard.
The invention also provides a hot rolled steel strip production system which comprises a finishing mill group and the guide and guard device of any one of the finishing mill groups.
The guide and guard device of finishing mill group provided by the invention comprises: a support body; a nozzle for supplying cooling water to the finishing mill group; the upper guard plate is arranged at one end, far away from the finishing mill group, of the supporting main body and extends in the vertical direction; the lower guard plate is arranged on the supporting main body in a position-adjustable mode, and one side of the lower guard plate can be abutted to the surface of a roller of the finishing mill group. According to the finishing mill group guide and guard device provided by the invention, through the arrangement of the supporting main body, the lower guard plate is utilized to abut against the surface of the roller, so that cooling water or other process water is prevented from flowing onto the hot rolled steel strip through the gap between the roller and the lower guard plate, meanwhile, through the arrangement of the upper guard plate, when equipment fails or is aged and is in an abnormal state, the cooling water or other process water sprayed out of the nozzles overflows through the space between the supporting main body and the roller and enters the upper part of the supporting main body, at the moment, the upper guard plate can block the overflowed cooling water or process water, and the cooling water or process water is prevented from flowing onto the hot rolled steel strip from one side of the supporting main body far away from the roller.
In a preferred embodiment, the support body comprises a mounting seat and a support plate, the mounting seat is connected with the support device of the rolling mill train, the support plate is positioned at the bottom of the mounting seat, a gap is formed between the support plate and the rolling mill train, and the upper guard is installed at one end of the support plate far away from the rolling mill train. Above-mentioned setting, through the mount pad will the backup pad is fixed, and utilizes the backup pad is right go up guard board with guard board down installs, and is convenient go up guard board with guard board's arrangement down, waterproof effect is good, moreover, will go up guard board installs the backup pad is kept away from the one end of rolling mill set, not only can place cooling water or process water as far as possible overflow on a large scale, be convenient for go up guard board's dismouting, it is low to the transformation installation cost of equipment.
The hot rolled steel strip production system provided by the invention is provided with the finishing mill group and the finishing mill group guide and guard device, and the finishing mill group guide and guard device has the technical effects, so that the hot rolled steel strip production system provided with the finishing mill group guide and guard device also has the corresponding technical effects.
Drawings
In order to more clearly illustrate the embodiments of the invention or the technical solutions in the prior art, the drawings that are required in the embodiments or the description of the prior art will be briefly described, it being obvious that the drawings in the following description are only some embodiments of the invention, and that other drawings may be obtained according to these drawings without inventive effort for a person skilled in the art.
FIG. 1 is a schematic view of a structure of a finishing train guide and guard according to an embodiment of the present invention;
FIG. 2 is a schematic view of the structure of the upper guard plate in the finishing train guard shown in FIG. 1;
wherein: hot rolled steel strip 1; a roller 2; a nozzle 3; a support body 4; a support plate 41; a mounting base 42; a driving part 43; an upper guard 5; a screw hole 51; a lower guard 6; a hinge pin 61; an elastic member 62.
Detailed Description
The invention aims to provide a guide and guard device of a finishing mill group and a hot rolled steel strip production system, which can effectively avoid the problem of uneven cooling of the hot rolled steel strip caused by overflow of cooling water or other process water.
The following description of the embodiments of the present invention will be made clearly and completely with reference to the accompanying drawings, in which it is apparent that the embodiments described are only some embodiments of the present invention, but not all embodiments. All other embodiments, which can be made by those skilled in the art based on the embodiments of the invention without making any inventive effort, are intended to be within the scope of the invention.
Referring to fig. 1 and 2, fig. 1 is a schematic structural view of an embodiment of a finishing train guide and guard device according to the present invention; FIG. 2 is a schematic view of the structure of the upper guard plate in the finishing train guard shown in FIG. 1.
In this embodiment, the finishing train guide and guard includes:
a support body 4;
a nozzle 3 for supplying cooling water to the finishing mill group;
the upper guard plate 5 is arranged at one end, far away from the finishing mill group, of the support main body 4, and the upper guard plate 5 extends along the vertical direction;
the lower guard plate 6 is arranged on the supporting main body 4 in an adjustable position, and one side of the lower guard plate 6 can be abutted with the surface of the roller 2 of the finishing mill group.
Specifically, the supporting body 4 is used as a main supporting structure of the whole finishing mill group guide and guard device, is arranged on the supporting device of the finishing mill group, is arranged on a proportional mill group housing or is fixedly arranged at a specific position of a workshop; the nozzle 3 is used for providing cooling water for the finishing mill group, and can also provide other process water, or the process water can be provided in other modes, and the cooling water flows on the surface of the roller 2 of the finishing mill group and is used for cooling the roller 2, so that the normal operation of the roller 2 is ensured; meanwhile, in order to prevent cooling water or other process water from flowing into the surface of the hot rolled steel strip 1, the lower guard 6 is abutted against the surface of the roll 2, the lower guard 6 is inclined downward from one end far away from the roll 2 to one end close to the roll 2, and when the cooling water or other process water flows downward along the surface of the roll 2, the lower guard 6 scrapes the cooling water or other process water so that the cooling water or other process water flows away along both sides of the lower guard 6 and does not flow to the surface of the hot rolled steel strip 1; meanwhile, in order to facilitate the installation of the lower guard 6 and meet the installation requirements of the rollers 2 with different specifications, the position of the lower guard 6 is adjustably installed on the supporting main body 4, that is, the position of the lower guard 6 can be adjusted according to the needs, when the rollers 2 need to be replaced or after the hot rolled steel strip 1 is rolled, the lower guard 6 is dropped down, and the lower guard 6 is separated from the surface of the rollers 2; the upper guard plate 5 can prevent the cooling water or process water overflowing to the upper part of the supporting main body 4 from flowing to the surface of the hot rolled steel strip 1 along one side of the supporting main body 4 deviating from the roller 2, and the upper guard plate 5 can effectively block overflowing water flow through extending along the vertical direction, so that the overflowing water flow flows away along the two sides of the supporting main body 4, and the influence on the hot rolled steel strip 1 is reduced. The width of the upper guard 5 in the axial direction of the roll 2 should be larger than the width of the hot rolled steel strip 1 so as to protect the entire position of the hot rolled steel strip 1. According to the arrangement, the upper guard plate 5 is additionally arranged at the tail end of the finishing mill group guide and guard device, when overflow occurs to the cooling water or the process water of the finishing mill group, the overflow is not sprayed on the surface of the steel strip from the tail end of the supporting main body 4, but flows away from the two ends of the supporting main body 4, so that uneven cooling of the hot rolled steel strip 1 is prevented.
According to the finishing mill group guide and guard device provided by the invention, through the arrangement of the supporting main body 4, the lower guard plate 6 is utilized to abut against the surface of the roller 2, so that cooling water or other process water is prevented from flowing onto the hot rolled steel strip 1 through the gap between the roller 2 and the lower guard plate 6, meanwhile, through the arrangement of the upper guard plate 5, when equipment fails or is aged and is in an abnormal state, the cooling water or other process water sprayed out of the nozzle 3 can overflow through the space between the supporting main body 4 and the roller 2 and enter the upper part of the supporting main body 4, at the moment, the upper guard plate 5 can block the overflowed cooling water or process water, and the cooling water or process water is prevented from flowing onto the hot rolled steel strip 1 from the side, away from the roller 2, of the supporting main body 4, so that the problem of the cooling water or process water is prevented from abnormally overflowing onto the surface of the hot rolled steel strip 1, and the problem of the cooling plate shape is caused, so that the plate shape control precision is improved, the quality assurance capability of the hot rolled steel strip 1 is improved, popularization is facilitated, and the cost is reduced.
In some embodiments, the upper guard 5 is detachably connected with the support main 4, so that the upper guard 5 is convenient to disassemble and assemble, the existing equipment is convenient to refit, and the installation cost is reduced. Specifically, the upper guard 5 and the support main 4 may be detachably connected by a bolt connection, a snap connection, or a strap connection. Of course, the upper guard 5 may be fixed to the support body 4, for example, the upper guard 5 may be welded to the support body 4, so that the strength is high and the deformation is not easy.
In some embodiments, the upper guard 5 has an L-shaped cross section, and the top of the upper guard 5 extends in the vertical direction and in the axial direction of the roll 2. Specifically, as shown in fig. 2, the short side of the upper guard 5 is mounted on the support main body 4, so as to achieve the effect of connection and fixation, the long side of the upper guard 5 plays the role of waterproofing, and the long side of the upper guard 5 extends upwards along the vertical direction and simultaneously extends along the axial direction of the roller 2, so that the upper guard 5 has the effect of blocking the overflow in the vertical direction and the axial direction of the roller 2, and the reliability is improved. Further, the short side of the upper guard 5 is installed towards the direction close to the roller 2, and the long side of the upper guard 5 is flush with one side of the supporting main body 4 away from the roller 2, so that the device is more attractive, and the harm of edges and corners to staff is reduced.
In some embodiments, the bottom of the upper guard 5 is provided with a plurality of screw holes 51, and the upper guard 5 is connected with the support body 4 through bolts. Specifically, screw holes 51 are formed in the short edges of the bottom of the upper guard plate 5, and bolt connection is adopted, so that convenience and reliability are realized, and the disassembly and assembly are efficient. Of course, the connection between the upper guard 5 and the support body 4 may be other manners, such as fastening, welding, or binding. Further, in order to facilitate the installation of the upper guard 5, an adjusting washer is further provided between the upper guard 5 and the supporting body 4, and the bolt sequentially penetrates through the threaded hole 51 of the supporting body 4, the adjusting washer and the threaded hole 51 of the upper guard 5, and then is fixed by a nut.
In some embodiments, the lower guard 6 is lifted or lowered by the driving part 43, and one end of the driving part 43 is connected to the support body 4, and the other end is connected to the middle part of the lower guard 6. The driving member 43 is preferably a cylinder, the fixed part of which is mounted on the support body 4 and the telescopic part of which is connected to the lower guard 6.
In some embodiments, the end of the lower guard 6 remote from the roll 2 is hinged to the support body 4. Specifically, the end of the lower guard 6 far away from the roller 2 is connected with the supporting main body 4 by adopting the hinge pin 61, so that the lower guard 6 can conveniently swing relative to the supporting main body 4 at the lifting and falling process, and the position of the lower guard 6 can be adjusted. Specifically, one side of the bottom of the supporting main body 4, which is far away from the roller 2, is provided with at least two supporting seats, one end upper portion of the lower guard 6, which is far away from the roller 2, is provided with a supporting edge, the supporting edge can be inserted between two adjacent supporting seats, through holes are respectively formed in the supporting seats and the supporting edge, and the hinge pin 61 can penetrate through the supporting edge and the supporting seats to realize the hinge of the lower guard 6 and the supporting main body 4.
In some embodiments, a resilient member 62 is provided between the drive member 43 and the lower guard 6. The elastic component 62 is a torsion spring, and when the driving component 43 lifts the lower guard 6 upwards, the torsion spring can play a role in buffering, so that rigid collision between the lower guard 6 and the roller 2 is avoided, and damage to the roller 2 is reduced. The elastic member 62 is preferably a metal elastic member, has high strength, and has a long service life.
In some embodiments, the support body 4 comprises a mounting seat 42 and a support plate 41, the mounting seat 42 is connected with the support device of the rolling mill train, the support plate 41 is positioned at the bottom of the mounting seat 42, a gap is formed between the support plate 41 and the rolling mill train, and the upper guard 5 is mounted at the end of the support plate 41 away from the rolling mill train. Specifically, the supporting plate 41 is detachably connected with the mounting seat 42, so that the dismounting is convenient, the supporting plate 41 is preferably horizontally arranged, or the supporting plate 41 has a certain inclination angle, and the overflow flow is convenient; the cylinder is arranged in the middle of the supporting plate 41, and the upper guard plate 5 and the lower guard plate 6 are arranged at one end of the supporting plate 41 far away from the roller 2; the lower guard 6 is connected with the supporting plate 41 through a hinge pin 61 or a pin shaft, so that the lower guard 6 can swing conveniently.
In some embodiments, the support body 4 comprises a mounting seat 42 and a support plate 41, the mounting seat 42 is connected with the support device of the rolling mill train, the support plate 41 is positioned at the bottom of the mounting seat 42, a gap is formed between the support plate 41 and the rolling mill train, and the upper guard 5 is mounted at the end of the support plate 41 away from the rolling mill train. Above-mentioned setting is fixed backup pad 41 through mount pad 42 to utilize backup pad 41 to install guard 5 and guard 6 down, conveniently go up guard 5 and guard 6's arrangement down, waterproof effect is good, moreover, installs guard 5 in backup pad 41 one end of keeping away from the rolling mill unit, not only can place cooling water or process water as far as possible overflow, and the dismouting of guard 5 is gone up in the dismouting of being convenient for moreover, and is low to the transformation installation cost of equipment.
In some embodiments, the nozzle 3 is located between the support plate 41 and the lower guard 6, i.e., the water sprayed from the nozzle 3 enters between the support plate 41 and the lower guard 6, and since the lower guard 6 is inclined downward from the end far from the roll 2 to the end near the roll 2, the water sprayed from the nozzle 3 can flow along the lower guard 6 to the surface of the roll 2, thereby serving the purpose of cooling the roll 2.
In a specific embodiment, the guide and guard device of the finishing mill group is used for improving the precision of the finish rolling plate shape of the hot rolled steel strip 1, and by adopting the guide and guard device of the finishing mill group, the process water of the finishing mill group caused by abnormal equipment states can be prevented from overflowing and spraying on the surface of the hot rolled steel strip 1, so that the abnormal plate shape caused by uneven cooling of the hot rolled steel strip 1 is reduced, and the control precision of the plate shape of the finishing mill group is improved. The device can improve the yield of steel belt products, and has simple structure, convenient installation and manufacture and low cost. To achieve the above object, the finishing train guide and guard device includes: the support main body 4, the upper guard 5, the lower guard 6, the adjusting sheet and the bolt, wherein the upper guard 5 can be assembled with the support main body 4 on line; the upper guard plate 5 is provided with a plurality of bolt holes, preferably 2-6 bolt holes.
The installation method of the guide and guard device of the finishing mill group comprises the following steps: the existing supporting main body 4 is provided with a plurality of bolt holes at corresponding positions, the upper guard 5 is swung to a proper position on line with the supporting main body 4, and after the bolts penetrate through the bolt holes to be connected with the upper guard 5, the bolts are firmly fastened through nuts. In the hot rolling process, the lower guard 6 is pulled up by the driving part 43, the lower guard 6 swings relative to the supporting body 4, so that one side of the lower guard 6, which is close to the roll 2, is abutted against the surface of the roll 2, and then a water spraying process is performed; after the hot rolling process is completed, the lower guard 6 is dropped by the driving part 43 so that the lower guard 6 is away from the surface of the roll 2, and then the roll 2 is replaced or maintained.
Compared with the prior art, the guide and guard device of the finishing mill group has the following advantages: the guide and guard device of the finishing mill group can effectively prevent abnormal overflowing cooling water or process water from being sprayed on the surface of the hot rolled steel strip 11, so that abnormal defects of the cooling plate shape are caused, the quality control requirement of the hot rolled steel strip 11 in the production process is met, and the guide and guard device of the finishing mill group is simple in equipment structure, convenient to install and beneficial to popularization.
In addition to the finishing train guide and guard device, the invention also provides a hot rolled steel strip production system comprising the finishing train guide and guard device, and other parts of the hot rolled steel strip production system refer to the prior art, and are not repeated herein.
In the present specification, each embodiment is described in a progressive manner, and each embodiment is mainly described in a different point from other embodiments, and identical and similar parts between the embodiments are all enough to refer to each other.
The guide and guard device of the finishing mill group provided by the invention is described in detail above. The principles and embodiments of the present invention are described herein with reference to specific examples, the description of which is provided only to assist in understanding the methods of the present invention and the core ideas thereof. It should be noted that it will be apparent to those skilled in the art that various modifications and adaptations of the invention can be made without departing from the principles of the invention and these modifications and adaptations are intended to be within the scope of the invention as defined in the following claims.

Claims (10)

1. A finishing train guide and guard comprising:
a support body (4);
a nozzle (3) for supplying cooling water to the finishing mill group;
the upper guard plate (5) is arranged at one end, far away from the finishing mill group, of the supporting main body (4), and the upper guard plate (5) extends along the vertical direction;
the lower guard plate (6), the position of the lower guard plate (6) is adjustable and is installed on the supporting main body (4), and one side of the lower guard plate (6) can be abutted with the surface of the roller (2) of the finishing mill group.
2. Finishing train guide and guard according to claim 1, characterized in that the upper guard (5) is detachably connected to the support body (4).
3. Finishing train guide and guard according to claim 2, characterized in that the cross section of the upper guard (5) is L-shaped, the top of the upper guard (5) extending in the vertical direction and the axial direction of the rolls (2).
4. A finishing train guide and guard according to claim 3, characterized in that the bottom of the upper guard (5) is provided with a plurality of threaded holes (51), and the upper guard (5) is connected with the supporting body (4) by bolts.
5. The finishing mill group guide and guard device according to claim 1, further comprising a driving part (43), wherein one end of the driving part (43) is connected with the supporting body (4), the other end is connected with the middle part of the lower guard (6), and the driving part (43) can drive the lower guard (6) to lift or fall.
6. Finishing train guide and guard according to claim 5, characterized in that the end of the lower guard (6) remote from the rolls (2) is hinged to the support body (4).
7. The finishing train guide and guard according to claim 5, characterized in that an elastic member (62) is provided between the driving member (43) and the lower guard (6).
8. The finishing train guide and guard according to any one of claims 1 to 7, characterized in that the support body (4) comprises a mounting seat (42) and a support plate (41), the mounting seat (42) is connected with the support device of the rolling train, the support plate (41) is located at the bottom of the mounting seat (42), a gap is formed between the support plate (41) and the rolling train, and the upper guard (5) is mounted at the end of the support plate (41) away from the rolling train.
9. Finishing train guide arrangement according to claim 8, characterized in that the nozzle (3) is located between the support plate (41) and the lower guide plate (6).
10. A hot rolled steel strip production system comprising a finishing train and a finishing train guide and guard, wherein the finishing train guide and guard is as claimed in any one of claims 1 to 9.
CN202311112449.2A 2023-08-31 2023-08-31 Guide and guard device of finishing mill group and hot rolled steel strip production system Pending CN116984395A (en)

Priority Applications (1)

Application Number Priority Date Filing Date Title
CN202311112449.2A CN116984395A (en) 2023-08-31 2023-08-31 Guide and guard device of finishing mill group and hot rolled steel strip production system

Applications Claiming Priority (1)

Application Number Priority Date Filing Date Title
CN202311112449.2A CN116984395A (en) 2023-08-31 2023-08-31 Guide and guard device of finishing mill group and hot rolled steel strip production system

Publications (1)

Publication Number Publication Date
CN116984395A true CN116984395A (en) 2023-11-03

Family

ID=88528393

Family Applications (1)

Application Number Title Priority Date Filing Date
CN202311112449.2A Pending CN116984395A (en) 2023-08-31 2023-08-31 Guide and guard device of finishing mill group and hot rolled steel strip production system

Country Status (1)

Country Link
CN (1) CN116984395A (en)

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