CN210547950U

CN210547950U - Continuous casting blank cooling foot roller

Info

Publication number: CN210547950U
Application number: CN201920640487.8U
Authority: CN
Inventors: 赵鹏飞; 王景超; 吴博; 李升�; 董学伟; 李永锋; 王仕伟; 杨雪松
Original assignee: Hebei Jinxi Iron And Steel Group Co ltd
Current assignee: Hebei Jinxi Iron And Steel Group Co ltd
Priority date: 2019-05-06
Filing date: 2019-05-06
Publication date: 2020-05-19
Anticipated expiration: 2029-05-06

Abstract

The utility model provides a continuous casting blank cooling foot roller, which relates to the technical field of metallurgy continuous casting and comprises a foot roller frame, a foot roller set and a spray assembly; the foot roller frame comprises a connecting plate and four mounting frames which are arranged at four corners below the connecting plate in parallel; the foot roller groups comprise four foot rollers which are respectively arranged between two adjacent mounting frames, and are provided with a plurality of groups which are sequentially arranged in the axial direction of the mounting frames; the spraying component is sleeved on the periphery of the foot roller group, and a plurality of nozzles with openings facing one side of the casting blank are arranged on the inner side of the spraying component. The utility model provides a sufficient roller of continuous casting blank cooling can realize effective support and the direction to the high temperature casting blank through the sufficient roller group that sets up multiunit top-down and arrange in order on sufficient roller frame, and the setting up of spray assembly makes the casting blank of the high temperature that comes out from the crystallizer, thin shell can obtain timely cooling, avoids the drum tripe and the deformation that take place, has improved the pulling speed of casting blank, has guaranteed the quality of casting blank product.

Description

Continuous casting blank cooling foot roller

Technical Field

The utility model belongs to the technical field of metallurgical continuous casting, more specifically say, relate to a continuous casting blank cooling foot roll.

Background

In the process of producing various steel products in a steel plant, two methods are used for solidifying and forming molten steel: conventional die casting and continuous casting processes. The early continuous casting technique was a technique of directly casting molten steel. Compared with the traditional method, the continuous casting technology has the obvious advantages of greatly improving the metal yield and the casting blank quality, saving energy and the like.

The foot roller of the crystallizer is positioned below the continuous casting crystallizer, and performs vertical arc-like motion along with the crystallizer and the vibrating table in the continuous casting and steel drawing process to support and guide a high-temperature casting blank, and if the high-temperature thin-shell casting blank from the crystallizer cannot be cooled and supported in time, bulging and deformation are easy to occur under the action of hydrostatic pressure of molten steel, so that steel leakage accidents and casting blank quality defects are caused. With the increase of the casting blank pulling speed, the thickness of the casting blank shell of the casting blank is reduced, the phenomena of bulging, deformation and steel leakage of the casting blank are more serious, the increase of the casting blank yield is seriously restricted, and the material consumption cost is increased.

SUMMERY OF THE UTILITY MODEL

An object of the utility model is to provide a sufficient roller of continuous casting blank cooling to the casting blank cooling that exists among the solution prior art causes the technical problem of casting blank quality defect easily in untimely.

In order to achieve the above object, the utility model adopts the following technical scheme: the continuous casting blank cooling foot roller comprises a foot roller frame, a foot roller set and a spraying assembly; the foot roller frame is fixedly arranged on the bottom surface of the crystallizer and comprises a connecting plate and four mounting frames, wherein the middle part of the connecting plate is provided with a through hole for a casting blank to pass through, and the four mounting frames are arranged at four corners below the connecting plate in parallel; the foot roller groups comprise four foot rollers which are respectively arranged between two adjacent mounting frames, and are provided with a plurality of groups which are sequentially arranged in the axial direction of the mounting frames; the spraying component is sleeved on the periphery of the foot roller group, and a plurality of nozzles with openings facing one side of the casting blank are arranged on the inner side of the spraying component.

As a further optimization, the main shaft of the mounting frame and the connecting plate are arranged in an acute included angle.

As a further optimization, the foot roller group comprises two long foot rollers arranged in parallel and two short foot rollers arranged in parallel, and the long foot rollers and the short foot rollers are synthesized into a space for a casting blank to pass through from the outer periphery; the long foot rollers are arranged between the two adjacent mounting frames, and the main shafts of the short foot rollers, which are perpendicular to the long foot rollers, are arranged between the two ends of the two long foot rollers.

As further optimization, the long-foot roller comprises a long-foot roller shaft and a long roller, wherein the two ends of the long-foot roller shaft are respectively connected with the mounting frame, the long roller is sleeved in the middle of the periphery of the long-foot roller shaft and is rotatably connected with the long-foot roller shaft, and the short-foot roller comprises a short-foot roller shaft and a short roller, wherein the two ends of the short-foot roller shaft are respectively connected with the mounting frame, and the short roller is sleeved in the middle of the periphery of the short-foot roller.

As further optimization, a bearing is arranged between the long-foot roll shaft and the long roll, and a bearing is also arranged between the short-foot roll shaft and the short roll.

As further optimization, the mounting bracket comprises a first plate body and a second plate body, wherein the plate faces are arranged along the vertical direction, the second plate body is perpendicular to the plate faces of the first plate body, the first plate body is provided with a plurality of first holes used for being connected with the long foot rollers in a rotating mode, and the second plate body is provided with a plurality of second holes used for being connected with the short foot rollers in a rotating mode.

As further optimization, the spray assembly comprises a water supply ring and four water supply pipes, wherein the water supply ring is sleeved on the periphery of the foot roller frame, the four water supply pipes are respectively arranged below the water supply ring, the upper ends of the four water supply pipes are communicated with the water supply ring, and the nozzles are arranged on the water supply pipes and are arranged at intervals in the axial direction of the water supply pipes.

As further optimization, the upper end of the water supply ring is provided with at least two fixing seats which extend outwards and are used for being connected with the connecting plate, and the bottom surfaces of the fixing seats are in contact fit with the top surface of the connecting plate.

As a further optimization, a plurality of nozzles respectively correspond to the axial middle parts of the long-foot roller or the short-foot roller.

As a further optimization, the spraying assembly also comprises a water supply pipe which is arranged on the periphery of the water supply ring and the outlet of which is communicated with the inlet of the water supply ring.

The utility model provides a sufficient roller of continuous casting blank cooling's beneficial effect lies in: the utility model provides a sufficient roller of continuous casting blank cooling can realize effective support and the direction to the casting blank of high temperature through set up sufficient roller group that multiunit top-down arranged in order on sufficient roller frame, and the setting up of spray assembly makes the casting blank of the high temperature that comes out from the crystallizer, thin shell can obtain timely cooling, avoids the drum tripe and the deformation that take place, has improved the pulling speed of casting blank, has guaranteed the quality of casting blank product.

Drawings

In order to more clearly illustrate the technical solutions of the embodiments of the present invention, the drawings required for the embodiments or the prior art descriptions will be briefly introduced below, and it is obvious that the drawings in the following description are only some embodiments of the present invention, and it is obvious for those skilled in the art to obtain other drawings without inventive labor.

FIG. 1 is a schematic view of a partial cross-sectional structure of a continuous casting blank cooling foot roll in a front view in a use state according to an embodiment of the present invention;

FIG. 2 is a schematic top view of a continuous casting blank cooling foot roller according to an embodiment of the present invention;

3 FIG. 33 3 is 3 a 3 schematic 3 view 3 of 3 a 3 partial 3 cross 3- 3 sectional 3 view 3 A 3- 3 A 3 of 3 the 3 foot 3 roll 3 stand 3 and 3 the 3 foot 3 roll 3 set 3 of 3 FIG. 31 3; 3

Fig. 4 is a schematic cross-sectional view of B-B of the spray assembly of fig. 2.

In the figure: 100. a foot roller frame; 110. a connecting plate; 120. a mounting frame; 121. a first plate body; 122. a second plate body; 200. a foot roller set; 210. a long foot roller; 211. a long-foot roll shaft; 212. a long roll; 220. a short-foot roller; 221. a short foot roll shaft; 222. a short roll; 300. a spray assembly; 310. a nozzle; 320. a water supply ring; 321. a fixed seat; 330. a water supply pipe; 340. a water supply pipe; 600. and (5) casting a blank.

Detailed Description

In order to make the technical problem, technical solution and advantageous effects to be solved by the present invention more clearly understood, the following description is given in conjunction with the accompanying drawings and embodiments to illustrate the present invention in further detail. It should be understood that the specific embodiments described herein are merely illustrative of the invention and are not intended to limit the invention.

Referring to fig. 1 to 4 together, the continuous casting blank cooling foot roll of the present invention will now be described. The continuous casting blank cooling foot roller comprises a foot roller frame 100, a foot roller group 200 and a spray assembly 300; the foot roller frame 100 is fixedly arranged on the bottom surface of the crystallizer and comprises a connecting plate 110 and four mounting frames 120, wherein the middle part of the connecting plate 110 is provided with a through hole for a casting blank 600 to pass through, and the four mounting frames are arranged at four corners below the connecting plate 110 in parallel; the foot roller set 200 comprises four foot rollers respectively arranged between two adjacent mounting frames 120, the foot roller set 200 is provided with a plurality of groups, and the plurality of groups of foot roller sets 200 are sequentially arranged in the axial direction of the mounting frames 120; the spray assembly 300 is sleeved on the periphery of the foot roller set 200, and a plurality of nozzles 310 with openings facing one side of the casting blank 600 are arranged on the inner side of the spray assembly. It will be understood that when an element is referred to as being "disposed on" another element, it can be directly on the other element or be indirectly on the other element. The terms "upper", "lower", "top", "bottom", "inner", "outer", and the like, indicate orientations or positional relationships based on the orientations or positional relationships shown in the drawings, and are only for convenience in describing the present invention and simplifying the description, but do not indicate or imply that the device or element referred to must have a particular orientation, be constructed in a particular orientation, and be operated, and therefore should not be construed as limiting the present invention. In the description of the present invention, "a plurality" means two or more unless specifically limited otherwise. In this embodiment, the mounting frame 120 and the foot roller are rotatably connected, and the outer periphery of the foot roller is in contact fit with the outer wall of the casting blank 600, so that the foot roller can rotate in the process of pulling out the casting blank 600 downwards, and the casting blank 600 is supported and guided.

The utility model provides a sufficient roller of continuous casting blank cooling, compared with the prior art, the utility model provides a sufficient roller of continuous casting blank cooling can realize effective support and direction to high temperature casting blank 600 through the sufficient roller set 200 that sets up multiunit top-down and arrange in order on sufficient roller frame 100, and the setting up of spray assembly 300 makes the high temperature that comes out from the crystallizer, the casting blank 600 of thin shell can obtain timely cooling, avoids the drum tripe and the deformation that take place, has improved the drawing speed of casting blank 600, has guaranteed the quality of casting blank 600 product.

Referring to fig. 1, as a specific embodiment of the continuous casting blank cooling foot roll provided by the present invention, an acute included angle is formed between the main shaft of the mounting frame 120 and the connecting plate 110. Because the casting blank 600 has certain acute angle contained angle with the vertical direction that is just vertical direction in the course of pulling out, also have the acute angle contained angle that is unanimous with casting blank 600 pulling out direction between the connecting plate 110 that is used for carrying out the bearing direction mounting bracket 120 of casting blank 600 and level setting, be convenient for realize the accurate direction to casting blank 600, improve the product quality of casting blank 600.

Referring to fig. 1 and 3 together, as an embodiment of the continuous casting blank cooling foot roller of the present invention, the foot roller set 200 includes two long foot rollers 210 arranged in parallel and two short foot rollers 220 arranged in parallel, and the long foot rollers 210 and the short foot rollers 220 are synthesized from the outer periphery to form a space for the casting blank 600 to pass through; the long-foot rollers 210 are disposed between two adjacent mounting frames 120, and the short-foot rollers 220 are disposed between two ends of the two long-foot rollers 210 perpendicular to a main axis of the long-foot rollers 210. When the casting blank 600 comes out from the lower part of the crystallizer, the section of the casting blank 600 is rectangular, so the embodiment adopts a form that the long foot roller 210 and the short foot roller 220 which can be matched with each side surface of the casting blank 600 are combined, and the effective support and guide of different side surfaces of the casting blank 600 are realized. The two long foot rollers 210 and the two short foot rollers 220 are encircled to form the foot roller group 200 with the cavity with the rectangular cross section at the center, three groups of foot roller groups 200 are arranged in the pulling-out direction of the casting blank 600 to realize balanced guide on the axial direction of the casting blank 600, the two long foot rollers 210 are mutually parallel to be used as the long sides of the rectangle, the two short foot rollers 220 are mutually parallel to be used as the short sides of the rectangle, and in the process that the casting blank 600 moves downwards, the long foot rollers 210 and the short foot rollers 220 have the common guide effect on the short foot rollers 220, so that the pulling-out speed of the casting blank 600 can be improved in the blank pulling-out process, and the production.

Please refer to fig. 1 and fig. 3 together, as a specific embodiment of the continuous casting blank cooling foot roller provided by the present invention, the long foot roller 210 includes a long foot roller shaft 211 connected with the mounting frame 120 at both ends and a long roller 212 sleeved in the middle of the periphery of the long foot roller shaft 211 and rotatably connected with the long foot roller shaft 211, the short foot roller 220 includes a short foot roller shaft 221 connected with the mounting frame 120 at both ends and a short roller 222 sleeved in the middle of the periphery of the short foot roller shaft 221 and rotatably connected with the short foot roller shaft 221, a bearing is provided between the long foot roller shaft 211 and the long roller 212, and a bearing is also provided between the short foot roller shaft 221 and the short roller 222. Because in the process of moving the casting blank 600 downwards, the long-foot roller 210 and the short-foot roller 220 both rotate, in order to reduce the friction force in the rotating process, the long-foot roller 210 is arranged in a mode of combining the long-foot roller shaft 211 with the long roller 212, when the casting blank is installed, the long-foot roller shaft 211 and the installation frame 120 are fixedly connected, the long-foot roller shaft 211 and the long roller 212 on the periphery are rotatably connected, a bearing is arranged between the long-foot roller shaft 211 and the long roller 212, the bearing adopts a high-temperature self-lubricating bearing, so that the friction force is reduced to the maximum extent, and meanwhile, the service life of a component is prolonged. Similarly, the short-foot roll shaft 221 and the short roll 222 are also arranged between the long-foot roll shaft 211 and the long roll 212, so that the drawing speed of the casting blank 600 is improved.

Referring to fig. 1 to 3 together, as a specific embodiment of the continuous casting blank cooling foot roller provided by the present invention, the mounting frame 120 includes a first plate 121 disposed on the plate surface along the vertical direction and a second plate 122 disposed on the plate surface along the vertical direction and perpendicular to the first plate 121, the first plate 121 is provided with a plurality of holes for connecting with the long foot roller 210, and the second plate 122 is provided with a plurality of holes for connecting with the short foot roller 220. The terms "first", "second" and "first" are used for descriptive purposes only and are not to be construed as indicating or implying relative importance or implicitly indicating the number of technical features indicated. Thus, a feature defined as "first" or "second" may explicitly or implicitly include one or more of that feature. The mounting bracket 120 is used for mounting the long-foot roller 210 and the short-foot roller 220, and two sides of the same mounting bracket 120 are respectively mounted with the long-foot roller 210 and the short-foot roller 220, so that the mounting bracket 120 adopts a form of combining the first plate body 121 and the second plate body 122 which are perpendicular to each other, which can realize the mounting effect, and simultaneously is convenient for enhancing the overall strength of the mounting bracket 120 and improving the stability of the device.

Referring to fig. 1, 2 and 4, as a specific embodiment of the continuous casting blank cooling foot roller of the present invention, the spray assembly 300 includes a water supply ring 320 sleeved on the periphery of the foot roller frame 100 and four water supply pipes 330 respectively disposed below the water supply ring 320 and having upper ends communicated with the water supply ring 320, the nozzles 310 are disposed on the water supply pipes 330 and axially spaced from each other in the axial direction of the water supply pipes 330, and the plurality of nozzles 310 respectively correspond to the axial middle portions of the long foot roller 210 or the short foot roller 220. The spraying assembly 300 is sleeved on the periphery of the foot roller frame 100 and is used for spraying cooling water to the long foot rollers 210 and the short foot rollers 220, so that bulging and deformation caused by overhigh temperature of the periphery of the casting blank 600 are avoided. The water supply pipe 330 is disposed below the water supply ring 320, corresponds to the axial middle portion of the long-foot roll 210 or the short-foot roll 220, and the outlet of the nozzle 310 faces the direction of the casting slab 600, and the water supply pipe 330 may be disposed in two or three ways in the axial direction of the long-foot roll 210 or the short-foot roll 220, which may achieve a better cooling effect. In this embodiment, the water supply pipe 330 on one side is parallel to the main axis of the mounting frame 120, the water supply pipe 330 on the other side is vertically disposed, and the vertical disposition is more convenient, and the other water supply pipe is parallel to the main axis of the mounting frame 120 to avoid the direction of pulling out the casting block 600, thereby avoiding position interference.

Referring to fig. 1, 3 and 4, as an embodiment of the continuous casting blank cooling foot roller of the present invention, at least two fixing bases 321 extending outward and connected to the connecting plate 110 are disposed at the upper end of the water supply ring 320, and the bottom surfaces of the fixing bases 321 are in contact fit with the top surface of the connecting plate 110. The spray assembly 300 further includes a water supply pipe 340 disposed at the outer periphery of the water supply ring 320 and having an outlet communicating with the inlet of the water supply ring 320. The connecting plates 110 are used for effectively connecting the connecting plates 110, so that the stability of the relative position between the spray assembly 300 and the foot roller set 200 can be realized, and a good spray effect is ensured. The water supply ring 320 feeds cold water through the water supply pipe 340 for the spray head to continuously spray.

The above description is only exemplary of the present invention and should not be construed as limiting the present invention, and any modifications, equivalents and improvements made within the spirit and principles of the present invention are intended to be included within the scope of the present invention.

Claims

1. Continuous casting blank cooling foot roller, its characterized in that includes:

the foot roller frame (100) is fixedly arranged on the bottom surface of the crystallizer and comprises a connecting plate (110) and four mounting frames (120), wherein the middle part of the connecting plate is provided with a through hole for a casting blank (600) to pass through, and the four mounting frames are arranged at four corners below the connecting plate (110) in parallel;

the foot roller sets (200) comprise four foot rollers (210) which are respectively arranged between two adjacent mounting frames (120), the foot roller sets (200) are provided with a plurality of groups, and the plurality of groups of foot roller sets (200) are sequentially arranged in the axial direction of the mounting frames (120);

the spraying assembly (300) is sleeved on the periphery of the foot roller set (200), and a plurality of nozzles (310) with openings facing one side of the casting blank (600) are arranged on the inner side of the spraying assembly.

2. The continuous casting foot roll according to claim 1, characterized in that the main axis of the mounting frame (120) is arranged at an acute angle to the connecting plate (110).

3. The continuous cast strand cooling foot roll according to claim 2, characterized in that the foot roll group (200) comprises two long foot rolls (210) arranged in parallel and two short foot rolls (220) arranged in parallel, the long foot rolls (210) and the short foot rolls (220) being combined from the outer periphery into a space for the cast strand (600) to pass through; the long foot rollers (210) are arranged between two adjacent mounting frames (120), and the short foot rollers (220) are arranged between two ends of the long foot rollers (210) and perpendicular to the main shaft of the long foot rollers (210).

4. The continuous casting blank cooling foot roller according to claim 3, wherein the long foot roller (210) comprises a long foot roller shaft (211) with two ends respectively connected with the mounting frame (120) and a long roller (212) sleeved in the middle of the outer periphery of the long foot roller shaft (211) and rotatably connected with the long foot roller shaft (211), and the short foot roller (220) comprises a short foot roller shaft (221) with two ends respectively connected with the mounting frame (120) and a short roller (222) sleeved in the middle of the outer periphery of the short foot roller shaft (221) and rotatably connected with the short foot roller shaft (221).

5. The continuous casting slab cooling foot roll according to claim 4, characterized in that a bearing is provided between the long foot roll shaft (211) and the long roll (212), and a bearing is also provided between the short foot roll shaft (221) and the short roll (222).

6. The continuous casting blank cooling foot roller according to claim 3, wherein the mounting frame (120) comprises a first plate body (121) with a plate surface arranged along the vertical direction and a second plate body (122) with a plate surface arranged along the vertical direction and perpendicular to the plate surface of the first plate body (121), the first plate body (121) is provided with a plurality of first holes for being rotatably connected with the long foot roller (210), and the second plate body (122) is provided with a plurality of second holes for being rotatably connected with the short foot roller (220).

7. The continuous casting blank cooling foot roller according to claim 3, wherein the spray assembly (300) comprises a water supply ring (320) sleeved on the outer periphery of the foot roller frame (100) and four water supply pipes (330) respectively arranged below the water supply ring (320) and having upper ends communicated with the water supply ring (320), and the nozzles (310) are arranged on the water supply pipes (330) and are spaced in the axial direction of the water supply pipes (330).

8. The continuous casting slab cooling foot roll according to claim 7, characterized in that the upper end of the water supply ring (320) is provided with at least two fixing seats (321) extending outwards and used for being connected with the connecting plate (110), and the bottom surfaces of the fixing seats (321) are in contact fit with the top surface of the connecting plate (110).

9. The continuous casting slab cooling foot roll according to claim 8, wherein a plurality of the nozzles (310) correspond to axial midpoints of the long foot roll (210) or the short foot roll (220), respectively.

10. The continuous casting slab cooling foot roll according to claim 8, wherein the spray assembly (300) further comprises a water supply pipe (340) provided at the outer periphery of the water supply ring (320) and having an outlet communicating with an inlet of the water supply ring (320).