Layered cold airflow purging device

Abstract

The utility model provides a layer cold air flow purging device, which comprises a roller way mechanism, a mounting mechanism and a purging mechanism, the purging mechanism comprises a connecting pipe, a collecting pipe and a plurality of purging units, each purging unit comprises a branch pipe and a nozzle, the connecting pipe is connected to the mounting mechanism along two longitudinal ends and is rotatably arranged, and the collecting pipe is connected to the mounting mechanism along the branch pipe. The collecting pipe extends in the transverse direction and communicates with the air outlet end of the connecting pipe, and each branch pipe inclines towards one side in the transverse direction. In this way, it is ensured that the steel strip can be blown in place in the width direction through the multiple blowing units arranged at intervals in the transverse direction, water mist and impurities can be blown away from the surface of the steel strip by inclining towards the transverse side, and meanwhile the blowing effects of the multiple blowing units can be overlapped so that the blowing effect can be improved, and water drop residues on the upper surface of the steel strip can be thoroughly removed; and when other abnormal conditions such as steel stacking occur, the connecting pipe can be controlled to rotate to lift the whole collecting pipe, so that the abnormal conditions can be handled conveniently, the whole process is convenient, and the efficiency of the whole production line is guaranteed.

Description

Technical Field

[0001] This utility model relates to the field of slab continuous casting technology, and in particular to a layer cooling airflow purging device. Background Technology

[0002] On the fully automated thin slab continuous casting and rolling production line, the equipment for detecting slab shape, thickness, and surface quality is installed on the cooling roller conveyor at the mill exit. The measurement and processing results are fed back to the secondary machine control computer and on-site operators. Based on the feedback, the corresponding parameters are fine-tuned to ensure that the product's various indicators meet the standard requirements. Most automatic measuring equipment uses visible light sampling. Water mist can cause emission and refraction effects on visible light, leading to sampling distortion and control failure.

[0003] Although existing technologies are equipped with side water sprayers to promptly wash away water mist and other foreign objects, the distance between the sprayers and the sprayers is relatively far, making it difficult to completely remove the water mist. Although extending the distance between the side water sprayers and the measuring device can dry the water mist with the high temperature of the steel belt itself, the measuring device, which is installed after laminar flow cooling, is not long enough to completely eliminate the water mist in time, affecting the measurement results.

[0004] Therefore, it is necessary to propose a laminar flow purging device to solve or at least alleviate the above-mentioned defects. Utility Model Content

[0005] The main purpose of this invention is to provide a layered cooling airflow purging device to solve the problem in the prior art that water mist cannot be completely removed to ensure thorough cleaning.

[0006] To achieve the above objectives, this utility model provides a laminar flow purging device, including a roller conveyor mechanism, an installation mechanism, and a purging mechanism; wherein,

[0007] The purging mechanism includes a connecting pipe, a manifold, and multiple purging units arranged at lateral intervals. Each purging unit includes a branch pipe and a nozzle; wherein,

[0008] The connecting pipe is connected to the mounting mechanism at both ends along the longitudinal direction and is rotatably mounted. The air inlet end of the connecting pipe is connected to the air inlet pipe. The manifold extends laterally and is connected to the air outlet end of the connecting pipe. The manifold is spaced apart above the roller conveyor mechanism. The first end of the branch pipe is connected to the manifold. The nozzle is connected to the second end of the branch pipe, and each branch pipe is inclined to one side along the lateral direction.

[0009] Preferably, each of the branch pipes is inclined downward toward the roller conveyor mechanism.

[0010] Preferably, the connecting pipe is T-shaped.

[0011] Preferably, the mounting mechanism includes a base, a bearing cap, and two support units arranged longitudinally opposite each other, each support unit including a support bracket and a bearing seat; wherein,

[0012] The support bracket is connected to the base, the bearing seat is connected to the top of the support bracket, and the bearing cap is connected to the two bearing seats at both ends along the longitudinal direction. The top of each bearing seat is recessed downward to form a first arc-shaped groove, and the bottom of both ends of the bearing cap along the longitudinal direction is recessed to form a second arc-shaped groove. The first arc-shaped groove and the second arc-shaped groove together form a circular channel. The two ends of the connecting pipe along the longitudinal direction are connected to the circular channel and are rotatably arranged.

[0013] Preferably, the purging mechanism further includes a retaining plate, which protrudes from the end of the connecting pipe away from the manifold, the retaining plate is disposed between the two bearing seats, and the retaining plate has a retaining groove;

[0014] When the manifold is placed horizontally, the clamping plate abuts against the bearing cap.

[0015] Preferably, it further includes a drive cylinder and two cylinder supports arranged longitudinally opposite each other. The cylinder supports are connected to the support support, the drive cylinder is hinged between the two cylinder supports, and the drive end of the drive cylinder is hinged to the clamping plate.

[0016] Preferably, the outlet end of the manifold and the connecting pipe are connected by a flange seal.

[0017] Preferably, the lateral angle between the centerline of each branch pipe and the longitudinal centerline is 10° to 30°.

[0018] Preferably, the interval between any two adjacent branch pipes is 10cm to 13cm.

[0019] Preferably, the vertical angle between the centerline of each branch pipe and the horizontal centerline is 10° to 40°.

[0020] Compared with the prior art, the present invention has the following beneficial effects:

[0021] The present invention provides a laminar flow purging device, including a roller conveyor mechanism, an installation mechanism, and a purging mechanism. The purging mechanism includes a connecting pipe, a manifold, and multiple purging units arranged laterally at intervals. Each purging unit includes a branch pipe and a nozzle. The two ends of the connecting pipe are connected to the installation mechanism along the longitudinal direction and are rotatably arranged. The air inlet end of the connecting pipe is used to communicate with the air inlet pipe. The manifold extends laterally and is connected to the air outlet end of the connecting pipe. The manifold is spaced above the roller conveyor mechanism. The first end of the branch pipe is connected to the manifold, and the nozzle is connected to the second end of the branch pipe. Each branch pipe is inclined to one side along the lateral direction. By using multiple horizontally spaced purging units, the width of the steel strip can be purged effectively. Each unit is tilted to one side to blow away water mist and impurities from the steel strip surface. The purging effects of multiple units can overlap to enhance the purging effect, thus thoroughly removing water droplets from the steel strip surface. In case of abnormal conditions such as steel piling, the connecting pipe can be rotated to lift the entire manifold, facilitating the handling of abnormal situations. The entire process is convenient and ensures the efficiency of the entire production line. Attached Figure Description

[0022] To more clearly illustrate the technical solutions in the embodiments of this utility model or the prior art, the drawings used in the description of the embodiments or the prior art will be briefly introduced below. Obviously, the drawings described below are only some embodiments of this utility model. For those skilled in the art, other drawings can be obtained based on the structures shown in these drawings without creative effort.

[0023] Figure 1 This is a three-dimensional schematic diagram of the overall structure of this utility model in an application scenario.

[0024] Figure 2 This is a plan view of the overall structure of this utility model in an application scenario according to one embodiment;

[0025] Figure 3 This is a perspective view of the overall structure of this utility model in an application scenario according to one embodiment;

[0026] Figure 4 This is a three-dimensional schematic diagram of the purging mechanism in the raised state according to one embodiment of the present invention;

[0027] Figure 5 This is a schematic diagram of the assembly of the connecting pipe and the clamping plate in one embodiment of the present invention.

[0028] The purpose, features, and advantages of this utility model will be further explained in conjunction with the embodiments and with reference to the accompanying drawings.

[0029] Explanation of icon numbers:

[0030] 10. Purge mechanism; 110. Connecting pipe; 120. Manifold; 130. Purge unit; 131. Branch pipe; 132. Nozzle; 140. Clamping plate; 150. Drive cylinder; 160. Cylinder support; 170. Air inlet pipe; 20. Mounting mechanism; 210. Base; 220. Bearing cover; 230. Support unit; 231. Support support; 232. Bearing seat; 30. Roller conveyor mechanism; 40. Steel belt. Detailed Implementation

[0031] It should be understood that the specific embodiments described herein are merely illustrative of the present invention and are not intended to limit the present invention.

[0032] The technical solutions of the present utility model will be clearly and completely described below with reference to the accompanying drawings of the embodiments. Obviously, the described embodiments are only some embodiments of the present utility model, and not all embodiments. Based on the embodiments of the present utility model, all other embodiments obtained by those of ordinary skill in the art without creative effort are within the protection scope of the present utility model.

[0033] It should be noted that all directional indicators (such as up, down, left, right, front, back, etc.) in this utility model embodiment are only used to explain the relative positional relationship and movement of each component in a certain specific posture (as shown in the figure). If the specific posture changes, the directional indicator will also change accordingly.

[0034] Furthermore, the use of terms such as "first" and "second" in this utility model is for descriptive purposes only and should not be construed as indicating or implying their relative importance or implicitly specifying the number of technical features indicated. Therefore, a feature defined as "first" or "second" may explicitly or implicitly include at least one of that feature. Additionally, the technical solutions of the various embodiments can be combined with each other, but only on the basis of being achievable by those skilled in the art. When the combination of technical solutions is contradictory or impossible to implement, such a combination of technical solutions should be considered non-existent and not within the scope of protection claimed by this utility model.

[0035] Please see the appendix Figure 1-5This utility model provides a laminar flow cooling air purging device in one embodiment, comprising a roller conveyor mechanism 30, an installation mechanism 20, and a purging mechanism 10. First, it should be noted that in this application, "longitudinal" refers to the direction of travel and conveying of the steel belt 40 (the direction of the length extension of the steel belt 40), and "lateral" refers to the width direction of the steel belt 40. Unlike existing technologies, which, although equipped with side water sprays to promptly remove water mist and other foreign matter, have relatively long distances from the spray points, making complete removal difficult; although extending the distance between the side water spray and the measuring device can utilize the high temperature of the steel belt itself to dry the water mist, the measuring device, after laminar flow cooling, is not long enough to completely eliminate all water mist in time, affecting the measurement effect. This application addresses the above-mentioned deficiencies in the prior art by providing a laminar flow cooling air purging device, as detailed below:

[0036] The purging mechanism 10 includes a connecting pipe 110, a manifold 120, and a plurality of purging units 130 arranged laterally at intervals. Each purging unit 130 includes a branch pipe 131 and a nozzle 132. The connecting pipe 110 is connected to the mounting mechanism 20 at both ends along the longitudinal direction and is rotatably arranged. The air inlet end of the connecting pipe 110 is connected to the air inlet pipe 170. The manifold 120 extends laterally and is connected to the air outlet end of the connecting pipe 110. The manifold 120 is spaced above the roller conveyor mechanism 30. The first end of the branch pipe 131 is connected to the manifold 120. The nozzle 132 is connected to the second end of the branch pipe 131. Each branch pipe 131 is inclined to one side along the lateral direction.

[0037] Specifically, the laminar flow purging device in this application includes a roller conveyor mechanism 30, an installation mechanism 20, and a purging mechanism 10. The roller conveyor mechanism 30 is a conveyor roller assembly for conveying the steel belt 40, which is a structure well known to those skilled in the art, and therefore will not be described in detail here. The installation mechanism 20 is used for mounting the purging mechanism 10 and is located on one side of the roller conveyor mechanism 30. The purging mechanism 10 is used to receive purging gas and then perform gas purging on the upper surface of the steel belt 40 to remove water mist and impurities from the upper surface of the steel belt 40.

[0038] The purging mechanism 10 includes a connecting pipe 110, a manifold 120, and multiple purging units 130 arranged laterally at intervals. The connecting pipe 110 is used to install the manifold 120, connecting the entire purging mechanism 10 to the mounting mechanism 20. The connecting pipe 110 is rotatably mounted on the mounting mechanism 20 at both ends along the longitudinal direction. Since the manifold 120 is connected to the air outlet of the connecting pipe 110, its position can be adjusted. When the connecting pipe 110 is rotated to a horizontal position, the manifold 120 is in a horizontal state, which can be used to purge the surface of the steel strip 40. In case of abnormal accidents such as steel piling, the connecting pipe 110 can be adjusted to lift the entire manifold 120. At this time, there is sufficient space above the roller conveyor mechanism 30, facilitating the handling of abnormal accidents. It is worth mentioning that one of the two ends of the connecting pipe 110 along the longitudinal direction... The end can be used to connect with the air inlet pipe 170 to access an external air source; the manifold 120 is used to store the accessed gas and distribute the gas to each purging unit 130. Each purging unit 130 includes a branch pipe 131 and a nozzle 132. The branch pipe 131 serves as a branch to cooperate with the nozzle 132 to spray gas from multiple positions for purging, thereby ensuring coverage of the entire surface of the steel strip 40 to achieve a more comprehensive purging effect. Preferably, each branch pipe 131 is inclined to one side along the transverse direction, so that the branch pipe 131 forms a certain angle with the longitudinal direction (the traveling direction of the steel strip 40), which facilitates the blowing of water mist and impurities away from the surface of the steel strip 40 and further improves the purging effect. In a preferred embodiment of this application, the transverse angle between the axis of each branch pipe 131 and the longitudinal axis can be set to 10° to 30°, which can be selected by those skilled in the art as needed.

[0039] In a preferred embodiment of the present invention, each of the branch pipes 131 is inclined downward toward the roller conveyor mechanism 30.

[0040] It should be noted that the branch pipe 131 is inclined toward the roller conveyor mechanism 30 so as to be inclined to the steel belt 40 for blowing, thereby forming an inclined blowing surface, which can optimize and improve the blowing performance. Preferably, the vertical angle between the axis of each branch pipe 131 and the horizontal axis can be set to 10° to 40°, which can be set by those skilled in the art as appropriate.

[0041] In a preferred embodiment of this utility model, the connecting pipe 110 is T-shaped.

[0042] It should be noted that the T-shape facilitates the longitudinal connection of one end with two ends to the mounting mechanism 20, while the extended end serves as the air outlet and connects to the manifold 120. This makes it convenient to connect each end and is more suitable for the structure of this application.

[0043] In a preferred embodiment of this utility model, the mounting mechanism 20 includes a base 210, a bearing cap 220, and two support units 230 arranged longitudinally opposite each other. Each support unit 230 includes a support 231 and a bearing seat 232; wherein,

[0044] The support 231 is connected to the base 210, the bearing seat 232 is connected to the top of the support 231, and the bearing cap 220 is connected to the two bearing seats 232 at both ends along the longitudinal direction. The top of each bearing seat 232 is recessed downward to form a first arc-shaped groove, and the bottom of both ends of the bearing cap 220 along the longitudinal direction is recessed to form a second arc-shaped groove. The first arc-shaped groove and the second arc-shaped groove together form a circular channel. The two ends of the connecting pipe 110 along the longitudinal direction are connected to the circular channel and are rotatably arranged.

[0045] It is worth noting that the base 210 is used for mounting the support unit 230. Each support unit 230 includes a support 231 and a bearing seat 232. The support 231 is used for mounting the bearing seat 232, and the bearing seat 232 is used for rotatably connecting the two ends of the connecting pipe 110 along the longitudinal direction, so as to facilitate the rotatable adjustment of the connecting pipe 110. Since the first arc-shaped groove of the bearing seat 232 is a semi-circular groove with an upward opening, a bearing cap 220 is added to cover the top of the two bearing seats 232 to facilitate the installation of the connecting pipe 110. It can be understood that the second arc-shaped grooves at both ends of the bearing cap 220 along the longitudinal direction are semi-circular grooves with a downward opening. Thus, the first arc-shaped groove and the second arc-shaped groove together form a circular channel, which is used for mounting the two ends of the connecting pipe 110 along the longitudinal direction, so as to achieve the purpose of rotatable setting.

[0046] In a preferred embodiment of the present invention, the purging mechanism 10 further includes a clamping plate 140, which protrudes from the end of the connecting pipe 110 away from the manifold 120. The clamping plate 140 is disposed between the two bearing seats 232 and has a clamping groove.

[0047] When the manifold 120 is placed horizontally, the clamping plate 140 abuts against the bearing cover 220.

[0048] It is worth noting that the clamping plate 140 serves as a limit for the rotation adjustment of the connecting pipe 110, so that when the connecting pipe 110 drives the manifold 120 to rotate to a horizontal position, it can remain horizontal under the limiting stop of the clamping plate 140. Therefore, it protrudes from the end of the connecting pipe 110 away from the manifold 120 and is disposed between the two bearing seats 232. The slot is used so that when the clamping plate 140 abuts against the bearing cover 220, the bearing cover 220 can be disposed in the slot. Please refer to the appendix for details. Figure 1 .

[0049] Furthermore, it also includes a drive cylinder 150 and two cylinder supports 160 arranged longitudinally opposite each other. The cylinder supports 160 are connected to the support support 231. The drive cylinder 150 is hinged between the two cylinder supports 160, and the drive end of the drive cylinder 150 is hinged to the clamping plate 140.

[0050] It should be noted that the rotation adjustment of the connecting pipe 110 is achieved by extending and retracting the hydraulic cylinder 150. The hydraulic cylinder support 160 is used for mounting the hydraulic cylinder 150 so that the hydraulic cylinder 150 is hinged between the two hydraulic cylinder supports 160. In this way, the hydraulic cylinder 150 itself can also rotate to adapt to the extension and retraction, avoiding rigidity failure. Similarly, the drive end of the hydraulic cylinder 150 is hinged to the clamping plate 140, which can also adapt to small changes during rotation, avoiding rigidity failure. Specifically, an ear plate can be protruded on the clamping plate 140 to facilitate hinged connection by a pin.

[0051] Furthermore, the outlet end of the manifold 120 and the connecting pipe 110 are connected by a flange seal.

[0052] It should be understood that using flange connections can eliminate the problem of sealing failure caused by excessive coaxiality, thus ensuring the airtightness of gas transmission. Furthermore, multiple sealing rings can be added between the flanges at the outlet ends of the manifold 120 and the connecting pipe 110 to further ensure airtightness.

[0053] Furthermore, the interval between any two adjacent branch pipes 131 is 10cm to 13cm.

[0054] It should be noted that the smaller the interval between two adjacent branch pipes 131, the more branch pipes 131 there are, and the better the overlapping of the purging effect. However, considering the cost, it is preferable that the interval between each pair of adjacent branch pipes 131 is 10cm to 13cm. The specific spacing and number can be selected by those skilled in the art according to actual needs.

[0055] The above are merely preferred embodiments of this utility model and do not limit the patent scope of this utility model. Any equivalent structural or procedural transformations made based on the description and drawings of this utility model, or direct or indirect applications in other related technical fields, are similarly included within the patent protection scope of this utility model.

Claims

1. A layer cooling gas flow purging device, characterized by, The device comprises a roller mechanism, a mounting mechanism and a blowing mechanism. The blowing mechanism comprises a connecting pipe, a manifold and a plurality of blowing units arranged in a transverse direction, each of the blowing units comprises a branch pipe and a nozzle. The connecting pipe is connected to the mounting mechanism at both ends in a longitudinal direction and is rotatably arranged, an air inlet end of the connecting pipe is arranged in communication with an air inlet pipe, the manifold extends in a transverse direction and is arranged in communication with an air outlet end of the connecting pipe, the manifold is arranged above the roller mechanism, a first end of the branch pipe is arranged in communication with the manifold, the nozzle is connected to a second end of the branch pipe, and each of the branch pipes is arranged to be inclined towards a side in the transverse direction. Each of the branch pipes is arranged to be inclined downwards towards the roller mechanism. The connecting pipe is in a T shape, the mounting mechanism comprises a base, a bearing gland and two support units arranged in a longitudinal direction, each of the support units comprises a support pedestal and a bearing seat. The support pedestal is connected to the base, the bearing seat is connected to a top end of the support pedestal, the bearing gland is connected to both of the bearing seats at both ends in a longitudinal direction, a top portion of each of the bearing seats is recessed to form a first arc-shaped groove, both ends of the bearing gland in the longitudinal direction are recessed to form a second arc-shaped groove, and a circular hole is formed between the first arc-shaped groove and the second arc-shaped groove, and both ends of the connecting pipe in the longitudinal direction are connected to the circular hole and are rotatably arranged.

2. The strip cooling gas flow purging apparatus of claim 1, wherein, The blowing mechanism further comprises a clamping plate, the clamping plate is protruded from an end of the connecting pipe away from the manifold, the clamping plate is arranged between the two bearing seats, and the clamping plate has a clamping groove. When the manifold is in a horizontal placement state, the clamping plate abuts against the bearing gland.

3. The strand cooling gas curtain purging apparatus of claim 2, wherein, The device further comprises a driving oil cylinder and two oil cylinder pedestals arranged in a longitudinal direction, the oil cylinder pedestals are connected to the support pedestals, the driving oil cylinder is hinged between the two oil cylinder pedestals, and a driving end of the driving oil cylinder is hinged to the clamping plate.

4. The strand cooling gas purging apparatus of claim 1, wherein, The manifold and the air outlet end of the connecting pipe are sealingly connected through a flange.

5. The strip cooling gas curtain purging apparatus of claim 1 wherein, A transverse included angle between an axial center line of each of the branch pipes and a longitudinal axial center line is 10°-30°.

6. The strip cooling gas curtain apparatus of claim 1, wherein, A spacing distance between each of the branch pipes is 10cm-13cm.

7. The strip cooling gas curtain apparatus of claim 1, wherein, A vertical included angle between the axial center line of each of the branch pipes and a horizontal axial center line is 10°-40°.

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