Dust collection guide and rolling mill

Abstract

The utility model relates to a dust collection guide and guard device and a rolling mill. The dust collection guide and guard device comprises a fixing base, a guide and guard piece and a flexible connecting pipe. The fixed seat is configured to be installed on a rack housing and located on one side of a steel billet channel, and the fixed seat is provided with an air outlet channel; the guiding and guarding piece is rotationally installed on the fixing base around the axis extending in the first direction and provided with an air inlet channel. The two ends of the flexible connecting pipe are connected with the air outlet channel and the air inlet channel correspondingly. Wherein the first direction is configured to be parallel to the axis of the roller. And the flexible connecting pipe is compressed and stretched along with the movement of the guide and guard piece. Meanwhile, the air outlet channel is connected with a negative pressure air draft device; smoke enters the air inlet channel from the steel billet channel and then enters the air outlet channel through the flexible connecting pipe to be sucked out. Therefore, the device is small in size, small in required air volume, low in energy consumption, good in universality and long in service life, and overhauling is not affected.

Description

Technical Field

[0001] This utility model relates to the field of plate rolling mill technology, specifically to a dust collection guide and a rolling mill. Background Technology

[0002] Currently, most dust collection devices in hot-rolled thin plate reversible roughing mills employ enclosed or semi-enclosed flue gas collection hoods located outside the mill stand. With this method, a large amount of flue gas diffuses into the hood and is collected and treated through airflow organization within the hood. This method results in a large hood volume, requires a large volume of dust collection air, consumes a lot of energy, and makes mill maintenance difficult. Utility Model Content

[0003] Based on the above description, this utility model provides a dust collection guide and a rolling mill to solve the problems of large size, large required dust collection air volume, high energy consumption and difficult maintenance of existing rolling mill dust collection devices.

[0004] The technical solution of this utility model to solve the above-mentioned technical problems is as follows:

[0005] A dust collection guide includes: a fixed base, a guide component, and a flexible connecting pipe;

[0006] The mounting base is configured to be installed on the frame archway and located on one side of the billet channel; the mounting base is provided with an air outlet channel.

[0007] The guide component is rotatably mounted on the fixed base about an axis extending along the first direction, and is provided with an air inlet channel;

[0008] The two ends of the flexible connecting tube are respectively connected to the air outlet channel and the air inlet channel;

[0009] The first direction is configured to be parallel to the axis of the roll.

[0010] Based on the above technical solution, the present invention can be further improved as follows:

[0011] Furthermore, the guide includes a guide plate and a housing. The guide plate is provided with an air inlet. Of the two opposing sides of the guide plate along the vertical direction, one side is configured to face the billet channel, and the other side is connected to the housing. The housing is provided with an air outlet.

[0012] The air inlet channel is formed between the guide plate and the housing, and the two ends of the air inlet channel respectively constitute the air inlet and the air outlet;

[0013] One end of the flexible connecting pipe is connected to the air outlet;

[0014] The first direction intersects with the up and down directions.

[0015] Furthermore, the air inlets are configured as multiple inlets, which are distributed at intervals along the first direction.

[0016] Furthermore, the guide also includes a partition, which is located in the middle of the air inlet channel.

[0017] Furthermore, the guide also includes at least two hinge seats, which are spaced apart along a first direction;

[0018] The fixed base has two mating parts, which are rotatably connected to the two hinged bases respectively.

[0019] Furthermore, the fixing seat includes a bracket and a base body, the base body being configured to be fixed to the frame archway and located on one side of the billet channel, and the bracket being connected to the base body on the side opposite to the billet channel;

[0020] The air outlet duct is located on the bracket.

[0021] Furthermore, the air outlet channel is configured to extend in the same direction as the billet channel;

[0022] The billet channel extends in a direction that intersects with the first direction.

[0023] This utility model also proposes a rolling mill, including the aforementioned dust collection guide.

[0024] Compared with the prior art, the technical solution of this application has the following beneficial technical effects:

[0025] When the billet enters or exits the billet channel, the guide member abuts against the billet. The guide member can rotate up and down relative to the fixed member to automatically adjust according to the billet thickness, suppressing vibration and displacement of the billet during rolling, ensuring a smooth rolling process, and reducing scratches on the billet surface. The flexible connecting pipe compresses and stretches with the movement of the guide member. Simultaneously, the air outlet channel is connected to a negative pressure exhaust device; smoke and dust enter the air outlet channel from the air inlet channel through the flexible connecting pipe and are sucked out. Thus, it is small in size, requires little air volume, consumes little energy, and does not affect maintenance. Attached Figure Description

[0026] Figure 1 A schematic diagram of the structure of a rolling mill provided in an embodiment of this utility model;

[0027] Figure 2 A schematic diagram of the structure of a rolling mill (including a frame archway) provided for an embodiment of this utility model;

[0028] Figure 3 for Figure 2 Another structural diagram from another perspective;

[0029] Figure 4 A schematic diagram of a dust collection guide provided for an embodiment of this utility model;

[0030] Figure 5 This is a schematic diagram of the structure of the guide component in an embodiment of the present utility model;

[0031] Figure 6 for Figure 5 Another structural diagram from another perspective;

[0032] Figure 7 for Figure 5 A structural diagram from another perspective;

[0033] Figure 8 This is a schematic diagram of the structure of the fixing base in an embodiment of this utility model.

[0034] The attached diagram lists the components represented by each number as follows:

[0035] 1000 Rolling mill; 100 Dust collection guide; 1 Fixed seat; 11 Support; 111 Air outlet duct; 12 Seat body; 13 Mating part; 131 Receiving groove; 132 Connecting hole; 2 Guide component; 21 Air inlet duct; 22 Guide plate; 221 Air inlet; 23 Shell; 231 Air outlet; 24 Partition; 25 Hinge seat; 251 Through hole; 26 Counterweight; 3 Flexible connecting pipe; 200 Frame archway; 300 Roll; 301 Billet passage; 400 Mating guide. Detailed Implementation

[0036] To facilitate understanding of this application, a more complete description will be provided below with reference to the accompanying drawings, which illustrate embodiments of the present application. However, the present application can be implemented in many different forms and is not limited to the embodiments described herein. Rather, these embodiments are provided so that the disclosure of this application will be thorough and complete.

[0037] Unless otherwise defined, all technical and scientific terms used herein have the same meaning as commonly understood by one of ordinary skill in the art to which this application belongs. The terminology used herein in the specification of this application is for the purpose of describing particular embodiments only and is not intended to be limiting of this application.

[0038] It is understood that spatial relation terms such as "below," "under," "below," "below," "above," "above," etc., can be used here to describe the relationship between one element or feature shown in the figure and other elements or features. It should be understood that, in addition to the orientation shown in the figure, spatial relation terms also include different orientations of the device in use and operation. For example, if the device in the figure is flipped, the element or feature described as "below" or "below" of the other element or feature will be oriented "above" the other element or feature. Therefore, the exemplary terms "below" and "below" can include both upper and lower orientations. Furthermore, the device may also include other orientations (e.g., rotated 90 degrees or other orientations), and the spatial descriptive terms used herein will be interpreted accordingly.

[0039] It should be noted that when one element is considered to be "connected" to another element, it can be directly connected to the other element, or connected to the other element through an intermediary element.

[0040] When used herein, the singular forms of “a,” “an,” and “the” may also include the plural forms unless the context clearly indicates otherwise. It should also be understood that the terms “comprising,” “including,” or “having,” etc., specify the presence of the stated feature, whole, step, operation, component, part, or combination thereof, but do not preclude the possibility of the presence or addition of one or more other features, wholes, steps, operations, components, parts, or combinations thereof.

[0041] Please refer to Figures 1 to 3This utility model provides a rolling mill 1000, which includes a dust collection guide 100, at least two frame stands 200, at least two rolls 300, and a cooperating guide 400. The two frame stands 200 are distributed opposite each other along a first direction, and the two rolls 300 extend along the first direction and are distributed opposite each other vertically, with both ends of the two rolls 300 rotatably connected to the two frame stands 200 respectively; the gap between the two rolls 300 is a billet passage 301. The dust collection guide 100 and the cooperating guide 400 are both installed on the frame stands 200 and located at the entrance or exit of the billet passage 301. The dust-collecting guide 100 and the cooperating guide 400 correspond to the upper and lower sides of the inlet or outlet of the billet channel 301, respectively. When the billet enters the billet channel 301, it passes between the dust-collecting guide 100 and the cooperating guide 400. The dust-collecting guide 100 and the cooperating guide 400 work together to ensure the billet accurately enters the billet channel 301, preventing deviation or misalignment. Alternatively, when the billet exits the billet channel 301, they provide support and constraint for the material during rolling, preventing warping or bending. The dust-collecting guide 100 continuously collects dust from the inlet or outlet of the billet channel 301 during both the entry and exit of the billet.

[0042] The first direction, the extension direction of the billet channel 301, and the vertical direction are arranged to intersect each other. In this embodiment, the first direction, the extension direction of the billet channel 301, and the vertical direction are perpendicular to each other.

[0043] In this embodiment, the rolling mill 1000 includes two dust collection guides 100 and two cooperating guides 400. Each dust collection guide 100 corresponds to one cooperating guide 400; the two dust collection guides 100 and the two cooperating guides 400 are divided into two groups, respectively located at the inlet and outlet of the billet channel 301.

[0044] Specifically, refer to Figures 4 to 8 The present invention also proposes the dust collection guide 100, which includes a fixed base 1, a guide member 2, and a flexible connecting pipe 3; the fixed base 1 is installed on the frame archway 200 and located on one side of the billet channel 301, and the fixed base 1 is provided with an air outlet channel 111; the guide member 2 is rotatably installed on the fixed base 1 about an axis extending along a first direction, and is provided with an air inlet channel 21; the two ends of the flexible connecting pipe 3 are respectively connected to the air outlet channel 111 and the air inlet channel 21; wherein, the first direction is parallel to the axis of the roll 300.

[0045] When the billet enters or exits the billet channel 301, the guide member 2 abuts against the billet. The guide member 2 can rotate up and down relative to the fixed member to automatically adjust according to the thickness of the billet, suppressing vibration and displacement of the billet during the rolling process, ensuring a smooth rolling process, and reducing scratches on the billet surface. The flexible connecting pipe 3 is compressed and stretched with the movement of the guide member 2. At the same time, the air outlet channel 111 is connected to a negative pressure exhaust device; smoke and dust enter the air outlet channel 111 from the air inlet channel 21 through the flexible connecting pipe 3 and are sucked out. Thus, it is small in size, does not affect maintenance, requires a small air volume (only 14%~16% of the traditional air volume), has low energy consumption, good versatility, and a long service life.

[0046] It should be noted that the dust collection guide 100 and the cooperating guide 400 are located on the upper and lower sides of the outlet or inlet of the billet channel 301, respectively; in this embodiment, refer to Figure 3 Taking the outlet of the billet channel 301 as an example, the dust collection guide 100 is located on the upper side of the outlet, and the cooperating guide 400 is located on the lower side of the outlet. During hot rolling of the billet, the dust rises, allowing the dust collection guide 100 to more quickly and efficiently remove as much dust as possible. The cooperating guide 400, located on the lower side of the outlet, provides support and prevents the billet from deforming during rolling. The guide 2 can rotate up and down to flexibly adjust according to the billet, ensuring the billet passes smoothly and remains stable. This improves rolling accuracy and dust collection efficiency.

[0047] In another embodiment, the dust collection guide 100 may also be located on the lower side of the outlet, and in conjunction with the guide 400 located on the upper side of the outlet.

[0048] In addition, the flexible connecting pipe 3 is made of a high-temperature resistant and corrosion-resistant material.

[0049] Specifically, in this embodiment, referring to Figures 4 to 7 The guide member 2 includes a guide plate 22 and a housing 23. The guide plate 22 is provided with an air inlet 221, the lower side of the guide plate 22 faces the billet channel 301, and the upper side of the guide plate 22 is connected to the housing 23. The air inlet channel 21 is formed between the guide plate 22 and the housing 23, and the two ends of the air inlet channel 21 respectively form the air inlet 221 and the air outlet 231. One end of the flexible connecting pipe 3 is connected to the air outlet 231, and the other end of the flexible connecting pipe 3 is connected to the air outlet channel 111. Dust enters the air inlet channel 21 from the air inlet 221 and then enters the flexible connecting pipe 3 from the air outlet 231. In this way, the dust collection efficiency is improved, and the structure is simple and easy to set up.

[0050] Furthermore, in this embodiment, referring to Figure 7The air inlets 221 are configured as multiple inlets, which are spaced apart along the first direction. This improves dust collection efficiency.

[0051] Specifically, in this embodiment, the air inlet 221 is configured as three.

[0052] To strengthen the structure of the guide member 2, in this embodiment, referring to... Figure 5 and Figure 6 The guide member 2 also includes a partition 24, which is located in the middle of the air inlet channel 21 and is connected to the housing 23. The partition 24 acts as a reinforcing rib to improve the strength of the guide member 2.

[0053] In addition, in this embodiment, the upper surface of the guide plate 22 is provided with two reinforcing plates, which are respectively provided on the two gaps between the three air inlets 221 to further strengthen the structure of the guide member 2.

[0054] In this embodiment, refer to Figures 4 to 6 ,as well as Figure 8 The guide member 2 further includes at least two hinge seats 25, which are spaced apart along a first direction. The two hinge seats 25 are connected to the upper end face of the guide member 2 and located on both sides of the housing 23. The fixed base 1 has two mating parts 13, which are rotatably connected to the two hinge seats 25 respectively. This allows the guide member 2 to be rotatably connected to the fixed base 1 about an axis extending in the first direction.

[0055] Specifically, in this implementation, we will continue to refer to... Figures 4 to 6 ,as well as Figure 8 Both hinge seats 25 are provided with through holes 251 extending along a first direction. Each mating part 13 forms a receiving groove 131, which is disposed through the billet channel 301, and the width of the receiving groove 131 is adapted to the thickness of the hinge seat 25. Both sidewalls of the receiving groove 131 are recessed with connecting holes 132 extending along the first direction. The two mating parts 13 are respectively housed in the two receiving grooves 131, and the two ends of the through holes 251 correspond to the two corresponding connecting holes 132. A rotating shaft passes through the through holes 251 and the two connecting holes 132, so that each mating part 13 is rotatably connected to the corresponding hinge seat 25.

[0056] In another embodiment, the two sidewalls of the receiving groove 131 may each be provided with a rotating column extending in the first direction, and the two rotating columns may be rotatably connected to the two ends of the through hole 251, thereby realizing the rotatable connection between each of the mating parts 13 and the corresponding hinge seats 25.

[0057] In this embodiment, refer to Figure 8 The fixed base 1 includes a bracket 11 and a base 12. The base 12 is fixed to the frame archway 200 and is located above the opening or outlet of the billet channel 301. The bracket 11 is connected to the upper side of the base 12, and the air outlet channel 111 is located on the bracket 11. This arrangement keeps the air outlet channel 111 away from the billet channel 301, facilitating its connection to a negative pressure exhaust device.

[0058] Furthermore, in this embodiment, the air outlet channel 111 extends in the same direction as the billet channel 301. The air outlet channel 111 and the air inlet channel 21 are distributed relatively opposite to each other in the extending direction of the billet channel 301, thus facilitating the connection of the two ends of the flexible connecting pipe 3 to the air outlet channel 111 and the air inlet channel 21 respectively, and preventing the flexible connecting pipe 3 from twisting. This design is reasonable and has a long service life.

[0059] In this embodiment, refer to Figure 5 and Figure 6 The guide 2 also includes a counterweight 26, which is connected to the upper end face of the guide plate 22 and located on the side of the housing 23 away from the billet channel 301, thereby changing the center of gravity of the guide plate 22 and making it easier for the guide plate 22 to rotate away from the billet channel 301 to accommodate the billets entering and exiting.

[0060] The above description is only a preferred embodiment of the present utility model and is not intended to limit the present utility model. Any modifications, equivalent substitutions, improvements, etc., made within the spirit and principles of the present utility model should be included within the protection scope of the present utility model.

Claims

1. A dust collection guide, characterized in that, include: Fixed base (1), guide (2) and flexible connecting tube (3); The mounting base (1) is configured to be installed on the frame archway (200) and located on one side of the billet channel (301), and the mounting base (1) is provided with an air outlet channel (111); The guide (2) is rotatably mounted on the fixed base (1) about an axis extending along the first direction, and is provided with an air inlet channel (21); The two ends of the flexible connecting pipe (3) are respectively connected to the air outlet channel (111) and the air inlet channel (21); The first direction is configured to be parallel to the axis of the roll (300).

2. The dust collection guide according to claim 1, characterized in that, The guide (2) includes a guide plate (22) and a housing (23). The guide plate (22) is provided with an air inlet (221). One of the two opposite sides of the guide plate (22) along the vertical direction is configured to face the billet channel (301), and the other is connected to the housing (23). The housing (23) is provided with an air outlet (231). The air inlet channel (21) is formed between the guide plate (22) and the housing (23), and the two ends of the air inlet channel (21) respectively constitute the air inlet (221) and the air outlet (231); One end of the flexible connecting pipe (3) is connected to the air outlet (231); The first direction intersects with the up and down directions.

3. The dust collection guide according to claim 2, characterized in that, The air inlets (221) are configured as a plurality of such inlets, which are distributed at intervals along the first direction.

4. The dust collection guide according to claim 2, characterized in that, The guide (2) also includes a partition (24), which is located in the middle of the air inlet channel (21).

5. The dust collection guide according to claim 1, characterized in that, The guide (2) further includes at least two hinge seats (25), which are spaced apart along a first direction; The fixed base (1) is provided with two mating parts (13), and the two mating parts (13) are rotatably connected to the two hinged bases (25) respectively.

6. The dust collection guide according to claim 1, characterized in that, The fixed seat (1) includes a bracket (11) and a seat body (12). The seat body (12) is configured to be fixed to the frame archway (200) and located on one side of the billet channel (301). The bracket (11) is connected to the seat body (12) which is configured to face away from the billet channel (301). The air outlet duct (111) is located on the bracket (11).

7. The dust collection guide according to claim 1, characterized in that, The air outlet duct (111) is configured to extend in the same direction as the billet duct (301); The extension direction of the billet channel (301) intersects with the first direction.

8. A rolling mill, characterized in that, Includes the dust collection guide as described in any one of claims 1-7.

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