CN216881080U

CN216881080U - Descaling device

Info

Publication number: CN216881080U
Application number: CN202220400777.7U
Authority: CN
Inventors: 高爱民
Original assignee: CISDI Engineering Co Ltd; CISDI Research and Development Co Ltd
Current assignee: CISDI Engineering Co Ltd; CISDI Research and Development Co Ltd
Priority date: 2022-02-25
Filing date: 2022-02-25
Publication date: 2022-07-05
Anticipated expiration: 2032-02-25

Abstract

The utility model relates to a descaling device, which belongs to the technical field of hot-rolled sheet billet continuous casting and rolling, and comprises at least one group of spraying units arranged along the width direction of a hot-rolled slab, wherein each spraying unit comprises spraying components which are oppositely arranged at the upper side and the lower side of the hot-rolled slab, each spraying component comprises a rotating shaft which is arranged along the width direction of the hot-rolled slab, two ends of each spraying component extend out of the hot-rolled slab and are rotatably connected to a support, a 360-degree rotary groove and a water inlet hole communicated with the rotary groove are formed in the position, corresponding to the hot-rolled slab, of each rotating shaft, a sleeve fixedly connected with the support is sleeved at the position, corresponding to the rotary groove, of each rotating shaft, and a sealing element is arranged between each two ends of each sleeve and each rotating shaft; and one side of the sleeve facing the hot rolled slab is uniformly provided with a plurality of water through holes at intervals, and the water through holes are communicated with the rotary groove and are connected with nozzles. According to the utility model, the 360-degree rotary grooves are formed in the rotary shaft, so that each nozzle is sequentially sprayed with water at equal intervals to remove the scale along with the rotation of the rotary shaft, and further, the uniform scale removal of the hot rolled plate blank is realized.

Description

Descaling device

Technical Field

The utility model belongs to the technical field of hot-rolled sheet billet continuous casting and rolling, and relates to a descaling device.

Background

In a hot-rolled sheet billet continuous casting and rolling unit, before rough rolling is carried out on a hot-rolled slab, high-pressure water is required to remove an oxide layer on the surface of the slab so as to prevent an oxide scale from being pressed into the hot-rolled slab during rough rolling to influence the product quality. Meanwhile, the hot rolled slab needs to be kept at a certain high temperature so as to carry out the process flows of rough rolling, subsequent finish rolling and the like, so that the temperature of the hot rolled slab is not expected to be reduced too much in the descaling process.

At present, the adopted descaling mode is rotary treatment, namely a plurality of groups of rotary nozzles are arranged along the width range of a plate blank, and the nozzles rotate within a certain radius range in the process of descaling the plate blank, so that the nozzles are reduced, and the descaling within the full width range of the plate blank is realized. However, this approach has many problems, including: because the nozzle rotates according to a certain radius, the transverse speed of the nozzle is changed ceaselessly, so that the nozzle is unevenly distributed in the descaling process, and the descaling effect is uneven; in order to drive each group of rotating nozzles, a plurality of sets of transmission devices are needed, the investment cost is high, the popularization is difficult at present, and even though the transmission devices are adopted in China, the transmission devices are not used for abandonment due to high failure rate and difficult maintenance.

Therefore, an energy-saving high-pressure water descaling device is needed to be searched, so that the non-uniformity of descaling can be avoided, the structural style can be simplified, and the investment can be reduced on the premise of meeting the descaling effect.

SUMMERY OF THE UTILITY MODEL

In view of this, the present invention provides a descaling apparatus to achieve uniform dephosphorization.

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

a descaling device comprises at least one group of spraying units arranged along the width direction of a hot-rolled slab, wherein the spraying units comprise spraying assemblies which are oppositely arranged on the upper side and the lower side of the hot-rolled slab, each spraying assembly comprises a rotating shaft which is arranged along the width direction of the hot-rolled slab, two ends of each spraying assembly extend out of the hot-rolled slab and are rotatably connected to a support, a 360-degree rotary groove and a water inlet hole communicated with the rotary groove are formed in the position, corresponding to the hot-rolled slab, of each rotating shaft, a sleeve fixedly connected with the support is sleeved at the position, corresponding to the rotary groove, of each rotating shaft, and a sealing element is arranged between each two ends of each sleeve and each rotating shaft to form dynamic sealing; and one side of the sleeve facing the hot rolled plate blank is uniformly provided with a plurality of water through holes at intervals, and the water through holes are communicated with the rotary groove and are connected with nozzles.

Optionally, nozzles are connected to a part of the water through holes, the nozzles are distributed at equal intervals, and plugs are detachably connected to the other part of the water through holes to plug the corresponding water through holes.

Optionally, the water inlet hole is arranged at one end or two ends of the rotary groove.

Optionally, the water inlet hole is arranged at one end of the rotary trough close to the operation side of the descaling device.

Optionally, a lubricating sleeve fixedly connected with the sleeve is arranged between the sleeve and the rotating shaft, and a through hole is formed in the position, corresponding to the water through hole, of the lubricating sleeve.

Optionally, the sleeve includes first hole section, second hole section and third hole section that set up in order and internal diameter increase gradually in proper order, and the internal diameter of first hole section matches with the rotation axis external diameter that corresponds this position, and the internal diameter of second hole section matches with the external diameter of lubricated cover, is equipped with the clamp plate in the third hole section in order to restrict the axial position of the lubricated cover of installing in the second hole section, and the third hole section is close to descaling device operation side one end.

Optionally, a sealing member mounting groove for mounting the sealing member at one end of the lubricating sleeve close to the pressure plate is formed in one end face of the lubricating sleeve, and the sealing member at the other end is mounted in the sealing member mounting groove formed in the other end of the sleeve.

Optionally, the inlet opening includes a central hole section that is located one end of the rotating shaft and is arranged along the center line of the rotating shaft and a lateral hole section that communicates the central hole section with the rotary trough, the lateral hole section is perpendicular to the central hole section, and one end of the central hole section that is close to the end of the rotating shaft is connected with a water inlet joint.

Optionally, the end of the rotating shaft away from the operation side of the descaling device is connected with a transmission system, and the transmission system is connected with a driving device.

Optionally, a plurality of groups of spraying units are included, and the plurality of groups of spraying units share one set of driving device.

The utility model has the beneficial effects that: through set up 360 revolving chutes on the rotation axis for along with the rotation of rotation axis, every nozzle can be in order equally time interval water spray descaling, thereby satisfies can evenly descaling in hot rolling slab width scope, finally realizes evenly getting rid of slab surface oxide layer under the condition of less water yield, has reduced the temperature drop of hot rolling slab, has simplified the structural style, has reduced the investment.

Additional advantages, objects, and features of the utility model will be set forth in part in the description which follows and in part will become apparent to those having ordinary skill in the art upon examination of the following or may be learned from practice of the utility model. The objectives and other advantages of the utility model may be realized and attained by the means of the instrumentalities and combinations particularly pointed out hereinafter.

Drawings

For the purposes of promoting a better understanding of the objects, aspects and advantages of the utility model, reference will now be made to the following detailed description taken in conjunction with the accompanying drawings in which:

FIG. 1 is a front view of a schematic application of the phosphorus removal device of the present invention;

FIG. 2 is a schematic top view of an application of the phosphorus removal device of the present invention;

FIG. 3 is a schematic view of the structure of the descaling apparatus according to the present invention;

FIG. 4 is a longitudinal cross-sectional view of the sleeve of the present invention;

FIG. 5 is a cross-sectional view of the sleeve of the present invention;

FIG. 6 is a longitudinal cross-sectional view of the copper sheath of the present invention;

FIG. 7 is a cross-sectional view of a copper sleeve of the present invention;

fig. 8 is a schematic structural view of a rotating shaft according to the present invention.

Reference numerals: the device comprises a transmission system 1, a descaling device 2, a hot-rolled slab 3, a rotating shaft 201, a bearing seat 202, a first sealing ring 203, a sleeve 204, a copper sleeve 205, a nozzle 206, a plug 207, a sleeve supporting seat 208, a second sealing ring 209, a pressure plate 210 and a rotary joint 211.

Detailed Description

The embodiments of the present invention are described below with reference to specific embodiments, and other advantages and effects of the present invention will be easily understood by those skilled in the art from the disclosure of the present specification. The utility model is capable of other and different embodiments and of being practiced or of being carried out in various ways, and its several details are capable of modification in various respects, all without departing from the spirit and scope of the present invention. It should be noted that the drawings provided in the following embodiments are only for illustrating the basic idea of the present invention in a schematic way, and the features in the following embodiments and examples may be combined with each other without conflict.

Wherein the showings are for the purpose of illustrating the utility model only and not for the purpose of limiting the same, and in which there is shown by way of illustration only and not in the drawings in which there is no intention to limit the utility model thereto; to better illustrate the embodiments of the present invention, some parts of the drawings may be omitted, enlarged or reduced, and do not represent the size of an actual product; it will be understood by those skilled in the art that certain well-known structures in the drawings and descriptions thereof may be omitted.

The same or similar reference numerals in the drawings of the embodiments of the present invention correspond to the same or similar components; in the description of the present invention, it should be understood that if there is an orientation or positional relationship indicated by terms such as "upper", "lower", "left", "right", "front", "rear", etc., based on the orientation or positional relationship shown in the drawings, it is only for convenience of description and simplification of description, but it is not an indication or suggestion that the referred device or element must have a specific orientation, be constructed in a specific orientation, and be operated, and therefore, the terms describing the positional relationship in the drawings are only used for illustrative purposes, and are not to be construed as limiting the present invention, and the specific meaning of the terms may be understood by those skilled in the art according to specific situations.

Referring to fig. 1 to 8, a descaling device 2 includes at least one group of spray units disposed along the width direction of a hot-rolled slab 3, each spray unit includes spray components disposed at the upper and lower sides of the hot-rolled slab 3, each spray component includes a rotating shaft 201 disposed along the width direction of the hot-rolled slab 3 and having two ends extending out of the hot-rolled slab 3 and rotatably connected to a support, the rotating shaft 201 is provided with a 360 ° rotary groove and a water inlet hole communicated with the rotary groove at a position corresponding to the hot-rolled slab 3, a sleeve 204 having two ends extending out of the hot-rolled slab 3 and fixed on the support is sleeved at a position corresponding to the rotary groove of the rotating shaft 201, and a sealing member is disposed between the two ends of the sleeve 204 and the rotating shaft 201 to form a dynamic seal; a plurality of water through holes which can be communicated with the rotary trough are uniformly arranged at intervals on one side of the sleeve 204 facing the hot rolled slab 3, and the water through holes are connected with nozzles 206.

Optionally, nozzles 206 are connected to a part of the water through holes, the nozzles 206 are distributed at equal intervals, and plugs are detachably connected to another part of the water through holes to plug the corresponding water through holes.

Optionally, the water inlet is provided at one or both ends of the rotary trough.

Alternatively, the water inlet hole is provided at the end of the revolving trough near the operating side of the descaling device 2.

Optionally, a lubricating sleeve fixedly connected with the sleeve 204 is arranged between the sleeve 204 and the rotating shaft 201, and a through hole is formed in the position, corresponding to the water through hole, of the lubricating sleeve.

Optionally, the sleeve 204 includes a first hole section, a second hole section and a third hole section which are sequentially arranged and sequentially increase in inner diameter, the inner diameter of the first hole section is matched with the outer diameter of the rotating shaft 201 corresponding to the position, the inner diameter of the second hole section is matched with the outer diameter of the lubricating sleeve, a pressing plate 210 is arranged in the third hole section to limit the axial position of the lubricating sleeve installed in the second hole section, and the third hole section is close to one end of the operation side of the descaling device 2.

Optionally, one end surface of the lubrication sleeve near the pressure plate 210 is opened with a sealing member installation groove for installing the end sealing member, and the sealing member at the other end is installed in the sealing member installation groove opened at the other end of the sleeve 204.

Optionally, the inlet opening includes a central hole section that is located one end of the rotating shaft 201 and is arranged along the center line of the rotating shaft 201 and a lateral hole section that communicates the central hole section with the rotary trough, the lateral hole section is perpendicular to the central hole section, and one end of the central hole section that is close to the end of the rotating shaft 201 is connected with a water inlet joint.

Alternatively, the end of the rotating shaft 201 remote from the operating side of the descaling device 2 is connected to a drive device.

Alternatively, the two rotary shafts 201 share one drive device, which has two output shafts connected to the two rotary shafts 201, respectively.

Alternatively, the end of the rotating shaft 201 away from the operating side of the descaling device is connected to the transmission system 1, and the transmission system 1 is connected to the driving device.

Optionally, the device comprises a plurality of groups of spraying units, wherein the plurality of groups of spraying units are connected with a set of driving device through a transmission system 1; the transmission system 1 has an input shaft connectable to a drive device and a plurality of output shafts connectable to the rotary shaft 201.

Examples

A descaling device 2 mainly comprises a rotating shaft 201, a bearing seat 202, a first sealing ring 203, a sleeve 204, a copper sleeve 205, a nozzle 206, a plug 207, a sleeve supporting seat 208, a second sealing ring 209, a pressure plate 210 and a rotary joint 211.

Rotating shaft 201: shaft shoulders matched with the bearing seat 202 are symmetrically arranged at two ends of the shaft, and key grooves matched with the shaft coupling are arranged at the transmission side of the shaft coupling; the middle part is provided with a 360-degree rotary groove; the operation side of the rotating shaft 201 is provided with a water inlet hole and a rotating joint interface, so that high-pressure water is injected into the rotary tank through the rotating joint 211, the structure is simple, and the arrangement of the nozzles 206 is free from constraint limitation on distance and quantity.

Bearing seat 202: two pieces are provided, symmetrically disposed at both sides, for providing support to the rotation shaft 201 and allowing rotation of the rotation shaft 201.

First seal ring 203: and is mounted on the sleeve 204 for sealing the high-pressure water between the rotating shaft 201 and the sleeve 204 to avoid leakage.

The sleeve 204: a rectangular cross-section structure is adopted, two ends of the rectangular cross-section structure are supported on a sleeve supporting seat 208 fixedly connected with the supporting seat, and a stepped shaft hole is formed in the center of the rectangular cross-section structure and used for mounting the copper sleeve 205 and the rotating shaft 201; one end of the sleeve shaft hole close to the transmission side is provided with a mounting groove for mounting a first sealing ring 203; one end of the sleeve 204 close to the operation side is provided with a pressing plate mounting hole of a copper sleeve 205; the bottom of the sleeve 204 is provided with a series of water through holes, the outer sides of the water through holes are provided with threaded interfaces for installing nozzles 206, and the number and the spacing of the water through holes are set according to the width and the speed of the plate blank.

The copper bush 205: is arranged between the sleeve 204 and the rotating shaft 201 and plays a role of sliding lubrication; the bottom is provided with a series of through holes, and the positions of the through holes correspond to the positions of the water through holes on the sleeve 204; and an installation groove for installing a second sealing ring 209 is arranged on the end surface close to one end of the operation side.

Nozzle 206: for spraying high pressure water, is mounted on a corresponding threaded interface at the bottom of the sleeve 204.

Pressing plate 210: and the sealing ring is arranged on the end surface of the sleeve 204 and is used for pressing the copper sleeve 205 and the second sealing ring 209, limiting the radial movement of the copper sleeve 205 and sealing high-pressure water between the rotating shaft 201 and the copper sleeve 205 to avoid leakage.

Plug 207: like the nozzle 206, the nozzle is mounted on a corresponding threaded interface at the bottom of the sleeve 204, and is used for replacing the nozzle 206 as required in actual production, so that the descaling effect is enhanced, and the adjustment of local spray intensity is realized.

According to the utility model, the middle part of the rotating shaft 201 is provided with the 360-degree rotary groove, the end surface of the operating side of the rotating shaft 201 is provided with the rotary joint 211, high-pressure water is injected into the rotary groove, and along with the rotation of the rotating shaft 201, each nozzle 206 is sequentially sprayed with water at equal intervals for descaling, so that the requirement of uniform descaling in the width range of the hot-rolled slab 3 is met; finally, under the condition of small water amount, the oxide layer on the surface of the plate blank is uniformly removed, the temperature drop of the hot-rolled plate blank is reduced, the structural style is simplified, and the investment cost is reduced.

Finally, the above embodiments are only intended to illustrate the technical solutions of the present invention and not to limit the present invention, and although the present invention has been described in detail with reference to the preferred embodiments, it will be understood by those skilled in the art that modifications or equivalent substitutions may be made on the technical solutions of the present invention without departing from the spirit and scope of the technical solutions, and all of them should be covered by the claims of the present invention.

Claims

1. A descaling device, characterized in that: the spraying unit comprises spraying components which are oppositely arranged on the upper side and the lower side of the hot rolled slab, the spraying components comprise rotating shafts which are arranged along the width direction of the hot rolled slab, two ends of each rotating shaft extend out of the hot rolled slab and are rotatably connected to a support, a 360-degree rotary groove and a water inlet hole communicated with the rotary groove are formed in the position, corresponding to the hot rolled slab, of each rotating shaft, a sleeve fixedly connected with the support is sleeved on the position, corresponding to the rotary groove, of each rotating shaft, and a sealing element is arranged between each two ends of each sleeve and each rotating shaft to form dynamic sealing; and one side of the sleeve facing the hot rolled plate blank is uniformly provided with a plurality of water through holes at intervals, and the water through holes are communicated with the rotary groove and are connected with nozzles.

2. A descaling apparatus according to claim 1, wherein: and part of the water through holes are connected with nozzles which are distributed at equal intervals, and the other part of the water through holes are detachably connected with plugs to plug the corresponding water through holes.

3. A descaling apparatus according to claim 1, wherein: the water inlet is arranged at one end or two ends of the rotary groove.

4. A descaling apparatus according to claim 1, wherein: the water inlet is arranged at one end of the rotary groove close to the operation side of the descaling device.

5. A descaling apparatus according to claim 1, wherein: and a lubricating sleeve fixedly connected with the sleeve is arranged between the sleeve and the rotating shaft, and a through hole is formed in the position, corresponding to the water through hole, of the lubricating sleeve.

6. A descaling apparatus according to claim 5, wherein: the sleeve is including setting up in order and the first hole section, second hole section and the third hole section that the internal diameter increases gradually in proper order, and the internal diameter of first hole section matches with the rotation axis external diameter that corresponds this position, and the internal diameter of second hole section matches with the external diameter of lubricated cover, is equipped with the axial position of clamp plate in order to restrict the lubricated cover of installing in the second hole section in the third hole section, and the third hole section is close to descaling device operation side one end.

7. A descaling apparatus according to claim 6, wherein: the end face of the lubricating sleeve, which is close to the pressing plate, is provided with a sealing element mounting groove for mounting a sealing element at the end, and the sealing element at the other end is mounted in the sealing element mounting groove at the other end of the sleeve.

8. A descaling apparatus according to claim 1, wherein: the inlet opening is including the center hole section that is located rotation axis one end and sets up along the rotation axis central line and the side direction hole section of intercommunication center hole section and gyration groove, and the one end that the center hole section is close to the rotation axis tip is connected with water supply connector.

9. A descaling apparatus according to claim 1, wherein: and one end of the rotating shaft, which is far away from the operation side of the descaling device, is connected with a transmission system, and the transmission system is connected with a driving device.

10. A descaling apparatus according to claim 1, wherein: comprises a plurality of groups of spraying units which share one set of driving device.