Guide beam device in descaling box and replacement method

Abstract

The invention relates to a guide beam device in a descaling box and a replacement method, the device comprises a main body cross beam, the length direction of the main body cross beam is consistent with the axial direction of a dephosphorization collecting pipe, and the main body cross beam and the dephosphorization collecting pipe are sequentially arranged along the transportation direction of an intermediate billet; and the guide plate is arranged at the end, away from the dephosphorization collecting pipe in the width direction, of the main body cross beam and located on the side, away from the dephosphorization collecting pipe in the thickness direction, of the main body cross beam, and the guide plate is used for guiding the end, away from the dephosphorization collecting pipe in the width direction of the main body cross beam. The inner guide beam device is arranged at the front end of the dephosphorization collecting pipe, and the guide plate arranged at the lower end of the main body cross beam is used for guiding an intermediate billet in the direction away from the dephosphorization collecting pipe, so that the dephosphorization collecting pipe and the dephosphorization water nozzle are protected, the intermediate billet can be effectively guided, the dephosphorization collecting pipe and the dephosphorization water nozzle are effectively prevented from being impacted and damaged, and the service life of the dephosphorization collecting pipe is prolonged. Therefore, the reliability of the equipment is effectively improved, the service life of the equipment is prolonged, and the maintenance amount and the abnormal consumption of spare parts are reduced.

Description

Technical Field

[0001] The invention relates to the technical field of hot rolling production, in particular to a guide beam device in a descaling box and a replacement method. Background Art

[0002] The descaling box of the hot rolling production line is a key process equipment. The intermediate billet rolled by the roughing mill passes through the fine descaling box to remove the secondary iron oxide scale produced on the surface of the rolled piece during the rough rolling process, and then enters the finishing rolling unit to be rolled into a finished product.

[0003] At present, the intermediate billet may have problems such as warping during the pre-rolling process of the descaling box. The warped intermediate billet is easy to collide and damage the descaling nozzle when passing through the descaling box process, and the intermediate billet is easy to get stuck in the descaling box, causing problems such as scrap steel and shutdown accidents. Summary of the invention

[0004] In view of the shortcomings of the prior art mentioned above, the purpose of the present invention is to provide a guide beam device and a replacement method for a descaling box, which are used to solve the problems that the intermediate billet is easily damaged by the descaling nozzle when passing through the descaling box process, and the intermediate billet is easily stuck in the descaling box, causing scrap steel and shutdown accidents.

[0005] In order to achieve the above-mentioned object and other related objects, the present invention provides a guide beam device in a descaling box, comprising a dephosphorization header, wherein the dephosphorization header has a plurality of dephosphorization nozzles distributed along the axial direction, and further comprising:

[0006] A main cross beam, wherein the length direction of the main cross beam is consistent with the axial direction of the dephosphorization header, and the main cross beam and the dephosphorization header are sequentially arranged along the transportation direction of the intermediate billet;

[0007] The guide plate is arranged at one end of the main cross beam away from the dephosphorization collection pipe in the width direction and is located on the side of the main cross beam away from the dephosphorization collection pipe in the thickness direction. The guide plate is used to guide the intermediate billet away from the end of the dephosphorization collection pipe in the width direction of the main cross beam.

[0008] Optionally, an angle α is formed between the guide plate and the main cross beam, and the angle α is an acute angle.

[0009] Optionally, the angle α ranges from 30° to 70°.

[0010] Optionally, a plurality of first ribs are provided between the main cross beam and the guide plate, and the plurality of first ribs are evenly distributed along the length direction of the main cross beam.

[0011] Optionally, an extension section is provided on the side of the main beam away from the guide plate in the thickness direction, and the extension section is arranged perpendicular to the main beam. A plurality of second ribs are provided between the main beam and the extension section, and the plurality of second ribs are evenly distributed along the length direction of the main beam.

[0012] Optionally, bottom plates are symmetrically provided at both ends of the main cross beam in the length direction, and the bottom plates are used to connect the guide beam device with the base of the dephosphorization box.

[0013] Optionally, the bottom plate is provided with a mounting hole through it along the thickness direction, the mounting hole is used for passing a connecting piece, and the inner guide beam device is connected to the base via the connecting piece.

[0014] Optionally, the main body cross beam is provided with a chamfer.

[0015] A method for replacing a guide beam in a descaling box is applied to the guide beam device in the descaling box as described above, and the method comprises:

[0016] The connection between the inner guide beam device and the base is released by removing the connecting piece;

[0017] The dismantled inner guide beam device is moved away from the installation position by using a lifting device, and the replaced inner guide beam device is lifted to the installation position by using the lifting device;

[0018] The inner guide beam device is locked and connected to the base by passing the connecting piece through the mounting hole and locking it with the base.

[0019] As described above, the present invention has the following beneficial effects: by arranging an internal guide beam device at the front end of the dephosphorization manifold, and by means of a guide plate arranged at the lower end of the main cross beam, the intermediate billet is guided in a direction away from the dephosphorization manifold, thereby protecting the descaling manifold and the dephosphorization water nozzle, the intermediate billet can be effectively guided, and the descaling manifold and the dephosphorization water nozzle can be effectively prevented from being damaged by impact, thereby effectively improving the reliability of the equipment, extending the service life of the equipment, and reducing the maintenance amount and abnormal consumption of spare parts. BRIEF DESCRIPTION OF THE DRAWINGS

[0020] Figure 1 The front view of the guide beam device in the descaling box shown in the embodiment of the present application is shown;

[0021] Figure 2 Shown is a top view of the guide beam device in the descaling box shown in an embodiment of the present application;

[0022] Figure 3 Display as Figure 2 Schematic diagram of the AA section;

[0023] Figure 4Shown is a flow chart of a method for replacing a guide beam in a descaling box according to an embodiment of the present application.

[0024] Description of Reference Numerals

[0025] Main body cross beam 1, chamfer 101, guide plate 2, first rib plate 3, extension section 4, second rib plate 5, bottom plate 6, mounting hole 601. DETAILED DESCRIPTION

[0026] The following describes the embodiments of the present invention through specific examples, and those skilled in the art can easily understand other advantages and effects of the present invention from the contents disclosed in this specification. The present invention can also be implemented or applied through other different specific embodiments, and the details in this specification can also be modified or changed in various ways based on different viewpoints and applications without departing from the spirit of the present invention.

[0027] See also Figures 1 to 4 It should be noted that the diagrams provided in the present embodiment only illustrate the basic concept of the present invention in a schematic manner, so the diagrams only show the components related to the present invention rather than drawing according to the number, shape and size of the components in actual implementation. The type, quantity and proportion of each component in actual implementation can be changed at will, and the component layout type may also be more complicated. The structure, proportion, size, etc. shown in the drawings attached to this specification are only used to match the content disclosed in the specification for people familiar with this technology to understand and read, and are not used to limit the limiting conditions that the present invention can be implemented, so they have no technical substantive significance. Any modification of the structure, change of the proportional relationship or adjustment of the size should still fall within the scope of the technical content disclosed by the present invention without affecting the effect and purpose that the present invention can produce. At the same time, the terms such as "upper", "lower", "left", "right", "middle" and "one" quoted in this specification are only for the convenience of description, and are not used to limit the scope of the implementation of the present invention. The change or adjustment of the relative relationship should also be regarded as the scope of the implementation of the present invention without substantially changing the technical content.

[0028] Before describing the embodiments of the present invention in detail, the application environment of the present invention is described first. The technology of the present invention is mainly applied to the field of hot rolling production technology. The present invention is used to solve the problems that the intermediate billet is easy to hit and damage the descaling nozzle when passing through the descaling box process, and the intermediate billet is easy to get stuck in the descaling box, causing scrap steel and downtime accidents.

[0029] Please combine Figures 1 to 3 As shown, the present invention provides a guide beam device in a descaling box and a replacement method.

[0030] In an exemplary embodiment of the present application, a guide beam device in a descaling box includes a dephosphorization manifold, which has a plurality of dephosphorization water nozzles distributed along the axial direction, and also includes: a main cross beam 1, the length direction of the main cross beam 1 is consistent with the axial direction of the dephosphorization manifold, and the main cross beam 1 and the dephosphorization manifold are arranged in sequence along the transportation direction of the intermediate billet; a guide plate 2, which is arranged at one end of the main cross beam 1 away from the dephosphorization manifold along the width direction, and is located on the side of the main cross beam 1 away from the dephosphorization manifold along the thickness direction, and the guide plate 2 is used to guide the intermediate billet along the width direction of the main cross beam 1 away from the end of the dephosphorization manifold.

[0031] In this embodiment, an internal guide beam device is provided at the front end of the dephosphorization manifold, and the intermediate billet is guided away from the dephosphorization manifold by a guide plate 2 provided at the lower end of the main cross beam 1, thereby protecting the descaling manifold and the dephosphorization water nozzle. The intermediate billet can be effectively guided, and the descaling manifold and the dephosphorization water nozzle can be effectively prevented from being damaged by impact, thereby effectively improving the reliability of the equipment, extending the service life of the equipment, and reducing the maintenance amount and abnormal consumption of spare parts.

[0032] In an exemplary embodiment of the present application, an angle α is formed between the guide plate 2 and the main cross beam 1 , and the angle α is an acute angle.

[0033] In this embodiment, the guide plate 2 is welded to the main cross beam 1 as a whole, and the angle formed between the guide plate 2 and the main cross beam 1 is an acute angle α, so as to avoid the angle being too small, causing the guide plate 2 to block the intermediate billet and get stuck in the dephosphorization box, and to avoid the angle being too large, causing the guide plate 2 to be unable to guide the intermediate billet, but instead causing the intermediate billet to extend along the guide plate 2 to the dephosphorization manifold, thereby causing impact damage to the dephosphorization nozzle.

[0034] In an exemplary embodiment of the present application, the angle α ranges from 30° to 70°.

[0035] In this embodiment, the guiding effect of the guide plate 2 on the intermediate billet is further ensured, the guide plate 2 does not block the intermediate billet, and the guide plate 2 can achieve the guiding function of the intermediate billet, thereby avoiding the accident of the intermediate billet hitting the dephosphorization nozzle.

[0036] In an exemplary embodiment of the present application, a plurality of first ribs 3 are provided between the main cross beam 1 and the guide plate 2 , and the plurality of first ribs 3 are evenly distributed along the length direction of the main cross beam 1 .

[0037] In this embodiment, by setting the first rib plate 3 between the main cross beam 1 and the guide plate 2, the impact resistance between the guide plate 2 and the intermediate blank is effectively improved, and it can ensure that the angle α between the guide plate 2 and the main cross beam 1 will not change for a long time, thereby extending the service life of the inner guide beam device and reducing the frequency of maintenance and replacement.

[0038] In an exemplary embodiment of the present application, an extension section 4 is provided on the side of the main beam 1 away from the guide plate 2 along the thickness direction, the extension section 4 is arranged perpendicular to the main beam 1, and a plurality of second ribs 5 are provided between the main beam 1 and the extension section 4, and the plurality of second ribs 5 are evenly distributed along the length direction of the main beam 1.

[0039] In this embodiment, by setting a second rib plate 5 between the main cross beam 1 and the extension section 4, the impact resistance of the main cross beam 1 is effectively improved, and deformation of the main cross beam 1 after long-term operation is avoided, thereby reducing the guiding function of the inner guide beam device on the intermediate billet.

[0040] In an exemplary embodiment of the present application, bottom plates 6 are symmetrically provided at both ends of the main cross beam 1 along the length direction, and the bottom plates 6 are used to connect the guide beam device with the base of the dephosphorization box.

[0041] In this embodiment, the sum of the width of the extension section 4, the thickness of the main cross beam 1 and the distance between the guide plate 2 and the main cross beam 1 in the horizontal direction is less than the length of the bottom plate 6. The end of the main cross beam 1 away from the dephosphorization collecting pipe in the width direction is connected to the bottom plate 6, and the side surface of the extension section 4 away from the dephosphorization collecting pipe in the thickness direction is connected to the bottom plate 6. There is no contact between the guide plate 2 and the bottom plate 6. By setting the bottom plate 6, the inner guide beam device is connected to the base, so that the guide beam device in the dephosphorization box can be easily installed or removed from the base, thereby enabling the rapid replacement of the inner guide beam device.

[0042] In an exemplary embodiment of the present application, a mounting hole 601 is formed through the bottom plate 6 along the thickness direction, and the mounting hole 601 is used to pass a connecting piece, and the inner guide beam device is connected to the base through the connecting piece.

[0043] In this embodiment, the bottom plate 6 has two mounting holes 601 symmetrically distributed along the length direction, and the two mounting holes 601 are symmetrical about the main cross beam 1, thereby ensuring the connection stability.

[0044] In an exemplary embodiment of the present application, a chamfer 101 is provided on the main cross beam 1 .

[0045] In this embodiment, the main cross beam 1 may collide with the equipment during the hoisting process. By providing a chamfer 101 on the main cross beam 1, the damage caused to the equipment by the sharp parts of the main cross beam 1 during the hoisting process can be reduced.

[0046] The application also proposes a method for replacing a guide beam in a descaling box.

[0047] See also Figure 4 , Figure 4 It is a flow chart of a method for replacing a guide beam in a descaling box shown in an embodiment of the present application.

[0048] In an exemplary embodiment of the present application, the method for replacing the guide beam in the descaling box includes at least steps S110 to S130, which are described in detail as follows:

[0049] Step S110, removing the connecting piece to release the connection between the inner guide beam device and the base.

[0050] Step S120, using a lifting device to move the dismantled inner guide beam device away from the installation position, and lifting the replaced inner guide beam device to the installation position by the lifting device.

[0051] Step S130, the inner guide beam device is locked and connected to the base by passing the connecting piece through the mounting hole 601 and locking it with the base.

[0052] In this embodiment, when the inner guide beam device of the dephosphorization box needs to be replaced, the connection between the inner guide beam device and the base is released by removing the connecting piece from the base, and the lifting device is fixed on the inner guide beam and lifted away from the installation position. The new inner guide beam device of the dephosphorization box is lifted to the installation position in the spare parts area by the lifting device, and the new inner guide beam device of the dephosphorization box is locked and connected to the base by the connecting piece, thereby completing the replacement operation of the inner guide beam device.

[0053] Working principle: by setting the main cross beam 1 at the front end of the dephosphorization collecting pipe, and setting the guide plate 2 at the lower end of the main cross beam 1, and the angle between the guide plate 2 and the main cross beam 1 is an acute angle, and the angle range is between 30° and 70°, it is ensured that the intermediate billet will not be stuck in the dephosphorization box process, causing the scrap steel to stop, and it can avoid the intermediate billet hitting the dephosphorization water nozzle, causing the risk of damage to the dephosphorization water nozzle. By setting a first rib plate 3 between the main cross beam 1 and the guide plate 2, and a second rib plate 5 between the main cross beam 1 and the extension section 4, the impact strength of the guide beam device in the dephosphorization box is effectively improved, thereby extending the service life of the guide beam device in the dephosphorization box. By setting a bottom plate 6 at both ends of the main cross beam 1, a mounting hole 601 is opened on the bottom plate 6, and a connecting piece is passed through the mounting hole 601 to connect with the base, the guide beam device in the dephosphorization box can be conveniently disassembled and assembled, thereby improving the maintenance and replacement efficiency.

[0054] The above embodiments are merely illustrative of the principles and effects of the present invention, and are not intended to limit the present invention. Anyone familiar with the art may modify or alter the above embodiments without departing from the spirit and scope of the present invention. Therefore, all equivalent modifications or alterations made by a person of ordinary skill in the art without departing from the spirit and technical concept disclosed by the present invention shall still be covered by the claims of the present invention.

Claims

1. A guide beam device in a descaling box, comprising a dephosphorization header, wherein the dephosphorization header is provided with a plurality of dephosphorization nozzles distributed along the axial direction, characterized in that: Also includes: A main cross beam, wherein the length direction of the main cross beam is consistent with the axial direction of the dephosphorization header, and the main cross beam and the dephosphorization header are sequentially arranged along the transportation direction of the intermediate billet; The guide plate is arranged at one end of the main cross beam away from the dephosphorization collection pipe in the width direction and is located on the side of the main cross beam away from the dephosphorization collection pipe in the thickness direction. The guide plate is used to guide the intermediate billet away from the end of the dephosphorization collection pipe in the width direction of the main cross beam.

2. The guide beam device in the descaling box according to claim 1, characterized in that: An included angle α is formed between the guide plate and the main body cross beam, and the included angle α is an acute angle.

3. The guide beam device in the descaling box according to claim 2, characterized in that: The angle α ranges from 30° to 70°.

4. The guide beam device in the descaling box according to claim 3, characterized in that: A plurality of first ribs are arranged between the main cross beam and the guide plate, and the plurality of first ribs are evenly distributed along the length direction of the main cross beam.

5. The guide beam device in the descaling box according to claim 1, characterized in that: An extension section is provided on one side of the main cross beam away from the guide plate in the thickness direction, and the extension section is vertically arranged to the main cross beam. A plurality of second ribs are provided between the main cross beam and the extension section, and the plurality of second ribs are evenly distributed along the length direction of the main cross beam.

6. The guide beam device in the descaling box according to claim 5, characterized in that: Bottom plates are symmetrically arranged at both ends of the main cross beam in the length direction, and the bottom plates are used to connect the guide beam device with the base of the dephosphorization box.

7. The guide beam device in the descaling box according to claim 6, characterized in that: The bottom plate is provided with a mounting hole through it along the thickness direction. The mounting hole is used for passing a connecting piece through which the inner guide beam device is connected to the base.

8. The guide beam device in the descaling box according to claim 1, characterized in that: The main body cross beam is provided with a chamfer.

9. A method for replacing a guide beam in a descaling box, applied to the guide beam device in a descaling box as claimed in any one of claims 6 to 7, characterized in that: The method comprises: The connection between the inner guide beam device and the base is released by removing the connecting piece; The dismantled inner guide beam device is moved away from the installation position by using a lifting device, and the replaced inner guide beam device is lifted to the installation position by using the lifting device; The inner guide beam device is locked and connected to the base by passing the connecting piece through the mounting hole and locking it with the base.

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