Air duct reinforcing device of blast furnace dust removal fan

Abstract

The utility model discloses an air duct reinforcing device of a blast furnace dust removal fan, which comprises a mounting frame, a clamping mechanism is arranged in the mounting frame, and a pushing mechanism is mounted on the mounting frame; the pushing mechanism comprises two sets of first workpieces which are located in the mounting frame and symmetrically arranged, each set comprises two first workpieces, the two first workpieces are symmetrically arranged, the tops of the first workpieces are rotationally arranged on the top of the inner wall of the mounting frame, second workpieces are arranged on the first workpieces, and connecting plates are rotationally arranged in the middles of the inner walls of the second workpieces. And the other end of the connecting plate is fixed to the inner wall of the mounting frame, the same side pressing roller is fixed between the two second workpieces located on the same side, and the pushing mechanism is used for achieving deflection of the first workpieces. The two side pressing rollers and the upper pressing roller are gathered together, clamping of the outer wall of the air duct is achieved, stability of the air duct is enhanced, noise generated by vibration of the air duct is reduced, extrusion can be achieved through one-key rotation of the screw, and the air duct clamping device is convenient to use, practical and suitable for clamping and fixing air ducts of different sizes.

Description

Technical Field

[0001] The utility model relates to the technical field of air duct reinforcement devices, in particular to an air duct reinforcement device for a blast furnace dust removal fan. Background Art

[0002] Blast furnace dust removal fans include iron casting yard dust removal fans and ore trough dust removal fans. The raw materials in the blast furnace are blast furnace dust removal ash from the steel plant, from which various precious metals can be extracted. Since the blast furnace dust removal fans process a large amount of air, the 2000m3 blast furnace is generally around 600,000m3 / h, and the value for 3200m3 and above blast furnaces is even higher, which determines that the air duct size of the blast furnace dust removal fan must be large enough to meet the air volume requirements of the dust collector and achieve the dust removal effect.

[0003] The inlet and outlet ducts of dust removal fans are generally long channel structures. The inlet duct is erected at high altitude, and elbows need to be set for transition according to the installation height of the dust collector and the distance from the fan. The outlet duct of dust removal fans without factories is generally shorter and directly connected to the chimney; the outlet duct of dust removal fans installed in factories is slightly longer, depending on the length of the factory building's outer wall from the dust removal fan outlet. It is generally set close to the ground and connected to the chimney after leaving the factory. Since the inlet and outlet ducts of dust removal fans are large in size and long in length, when the dust removal fan is running, the unstable rotation of the impeller or the leakage of the duct will cause huge vibration of the duct. In order to eliminate the vibration of the duct, it is necessary to take measures to improve the strength of the duct. Utility Model Content

[0004] The utility model aims to solve the shortcomings in the prior art and proposes an air duct reinforcement device for a blast furnace dust removal fan.

[0005] In order to achieve the above purpose, the utility model adopts the following technical solutions:

[0006] A duct reinforcement device for a blast furnace dust removal fan comprises a mounting frame, a clamping mechanism is arranged in the mounting frame, and a pushing mechanism is installed on the mounting frame;

[0007] The pushing mechanism includes two groups of first workpieces located inside the mounting frame and symmetrically arranged, and each group of first workpieces is provided with two first workpieces, the two first workpieces are symmetrically arranged, the top of the first workpiece is rotatably arranged on the top of the inner wall of the mounting frame, a second workpiece is arranged on the first workpiece, a connecting plate is rotatably arranged at the middle position of the inner wall of the second workpiece, and the other end of the connecting plate is fixed to the inner wall of the mounting frame, and the same side pressure roller is fixed between the two second workpieces located on the same side, and the pushing mechanism is used to realize the deflection of the first workpiece.

[0008] As a further solution of the utility model, the pushing mechanism includes a screw threadedly connected to the top of the mounting frame, and two symmetrically arranged push plates are provided on the inner top of the mounting frame. Notches are opened on the push plates, and the two push plates are fixed with the same reinforcing plate. A connecting block is rotatably provided on the top of the reinforcing plate, and the bottom of the screw is fixed to the connecting block.

[0009] As a further solution of the utility model, an arc-shaped sliding groove is provided on the outer wall of the first workpiece, and a second limiting head slidably arranged in the arc-shaped sliding groove is fixed on the outer wall of the push plate.

[0010] As a further solution of the utility model, a sliding opening is formed on the outer wall of the first workpiece obliquely below the arc-shaped sliding groove, and a first limiting head located in the sliding opening is fixed on the second workpiece.

[0011] As a further solution of the utility model, both sides of the push plate are arranged as inclined structures, a notch is opened on the top of the second workpiece, and a roller is rotatably arranged in the notch, the roller is close to the inclined surface of the push plate, and the same baffle is fixed to the sides of the two push plates.

[0012] As a further solution of the utility model, a fixing ear is fixed to the bottom of the push plate, and the two fixing ears are fixed with the same upper pressure roller.

[0013] As a further solution of the utility model, two cross-links are installed on the top of the reinforcing plate, and the cross-links include a first link and a second link, the first link and the second link are rotatably connected, the bottom of the first link is rotatably connected to the top of the reinforcing plate, and the top of the second link is rotatably connected to the bottom of the inner wall of the mounting frame.

[0014] The beneficial effects of the utility model are:

[0015] The utility model: through the installation frame, clamping mechanism and pushing mechanism that are set, the screw is rotated, and when the push plate moves downward, the second limit head slides in the arc-shaped slide groove, the first workpiece is deflected, the second workpiece is deflected, and the two second workpieces are close to each other, so that the two side pressure rollers are close to each other, and at the same time the upper pressure roller located at the bottom of the push plate moves downward, the two side pressure rollers and the upper pressure roller gather together to clamp the outer wall of the air duct, enhance its stability, and reduce the noise generated by its vibration. The screw can be rotated with one button to achieve extrusion, which is convenient and practical, and suitable for clamping and fixing air ducts of different sizes. BRIEF DESCRIPTION OF THE DRAWINGS

[0016] Figure 1 This is a schematic diagram of the three-dimensional structure of an air duct reinforcement device for a blast furnace dust removal fan proposed by the utility model;

[0017] Figure 2It is a schematic diagram of a first partial expanded three-dimensional structure of an air duct reinforcement device for a blast furnace dust removal fan proposed by the utility model;

[0018] Figure 3 It is a second partially expanded three-dimensional structural schematic diagram of an air duct reinforcement device for a blast furnace dust removal fan proposed by the utility model;

[0019] Figure 4 It is a schematic diagram of a third partial expanded three-dimensional structure of an air duct reinforcement device for a blast furnace dust removal fan proposed by the utility model.

[0020] In the figure: 1. mounting frame; 2. clamping mechanism; 3. screw; 4. reinforcing plate; 5. cross connecting rod; 6. push plate; 7. notch; 8. stop bar; 9. first workpiece; 10. second workpiece; 11. fixing ear; 12. upper pressure roller; 13. side pressure roller; 14. roller; 15. arc-shaped slide groove; 16. slide mouth; 17. first limit head; 18. second limit head; 19. connecting plate. DETAILED DESCRIPTION

[0021] The technical solutions in the embodiments of the present invention will be described clearly and completely below in conjunction with the drawings in the embodiments of the present invention. Obviously, the described embodiments are only part of the embodiments of the present invention, rather than all of the embodiments.

[0022] It should be noted that, in the absence of conflict, the embodiments and features in the embodiments of the present application can be combined with each other. The present utility model will be described in detail below with reference to the accompanying drawings and in combination with the embodiments.

[0023] Reference Figure 1-Figure 4 , an air duct reinforcement device for a blast furnace dust removal fan, comprising a mounting frame 1, a clamping mechanism 2 is arranged in the mounting frame 1, and a pushing mechanism is installed on the mounting frame 1;

[0024] The pushing mechanism includes two groups of first workpieces 9 located inside the mounting frame 1 and symmetrically arranged, and each group of first workpieces 9 is provided with two first workpieces 9, and the two first workpieces 9 are symmetrically arranged. The top of the first workpiece 9 is rotatably arranged on the top of the inner wall of the mounting frame 1, and a second workpiece 10 is arranged on the first workpiece 9. A connecting plate 19 is rotatably arranged in the middle position of the inner wall of the second workpiece 10, and the other end of the connecting plate 19 is fixed to the inner wall of the mounting frame 1. The same side pressure roller 13 is fixed between the two second workpieces 10 located on the same side, and the pushing mechanism is used to realize the deflection of the first workpiece 9.

[0025] In this embodiment, the pushing mechanism includes a screw rod 3 threadedly connected to the top of the mounting frame 1. Two symmetrically arranged push plates 6 are provided on the inner top of the mounting frame 1. A slot 7 is provided on the push plates 6. The two push plates 6 are fixed with the same reinforcing plate 4. A connecting block is rotatably provided on the top of the reinforcing plate 4, and the bottom of the screw rod 3 is fixed to the connecting block.

[0026] In this embodiment, an arc-shaped slide groove 15 is formed on the outer wall of the first workpiece 9 , and a second limit head 18 slidably disposed in the arc-shaped slide groove 15 is fixed on the outer wall of the push plate 6 .

[0027] In this embodiment, a sliding opening 16 is formed on the outer wall of the first workpiece 9 obliquely below the arc-shaped sliding groove 15 , and a first limiting head 17 located in the sliding opening 16 is fixed on the second workpiece 10 .

[0028] In this embodiment, both sides of the push plate 6 are set as inclined structures, a notch is opened on the top of the second workpiece 10, and a roller 14 is rotatably arranged in the notch. The roller 14 is close to the inclined surface of the push plate 6, and the same baffle 8 is fixed to the sides of the two push plates 6.

[0029] In this embodiment, a fixing ear 11 is fixed to the bottom of the push plate 6 , and the two fixing ears 11 are fixed with the same upper pressing roller 12 .

[0030] In this embodiment, two cross-links 5 are installed on the top of the reinforcing plate 4, and the cross-links 5 include a first link and a second link. The first link and the second link are rotatably connected, the bottom of the first link is rotatably connected to the top of the reinforcing plate 4, and the top of the second link is rotatably connected to the bottom of the inner wall of the mounting frame 1.

[0031] Working principle: When in use, through the installation frame 1, the clamping mechanism 2 and the pushing mechanism, the clamping mechanism 2 includes a first workpiece 9, a second workpiece 10, a fixing ear 11, an upper pressure roller 12, a side pressure roller 13, a roller 14, an arc-shaped slide groove 15, a slide 16, a first limit head 17 and a second limit head 18, etc., the screw rod 3 includes a reinforcing plate 4 and a push plate 6, etc., the installation frame 1 is fixed to the outer wall of the air duct and fixed to the ground or the table through anchor nails, the screw rod 3 is rotated so that the screw rod 3 pushes the push plate 6 rotating with it to move downward, and when the push plate 6 moves downward, the first The two limit heads 18 slide in the arc-shaped slide groove 15, so that the first workpiece 9 is deflected, and the roller 14 on the top of the second workpiece 10 rolls on the inclined surface of the push plate 6, so that the second workpiece 10 is deflected, and the two second workpieces 10 are close to each other, so that the two side pressure rollers 13 are close to each other, and at the same time, the upper pressure roller 12 located at the bottom of the push plate 6 moves downward, and the two side pressure rollers 13 and the upper pressure roller 12 gather together to clamp the outer wall of the air duct, enhance its stability, and reduce the noise generated by its vibration. The screw 3 can be turned with one button to achieve extrusion, which is convenient and practical, and suitable for clamping and fixing air ducts of different sizes.

[0032] For ease of description, spatially relative terms such as "above", "above", "on the upper surface of", "above", etc. may be used here to describe the spatial positional relationship between a device or feature and other devices or features as shown in the figure. It should be understood that spatially relative terms are intended to include different orientations of the device in use or operation in addition to the orientation described in the figure. For example, if the device in the accompanying drawings is inverted, the device described as "above other devices or structures" or "above other devices or structures" will be positioned as "below other devices or structures" or "below other devices or structures". Thus, the exemplary term "above" can include both "above" and "below". The device can also be positioned in other different ways (rotated 90 degrees or in other orientations), and the spatially relative descriptions used here are interpreted accordingly.

[0033] It should be noted that the terms used herein are only for describing specific embodiments and are not intended to limit the exemplary embodiments according to the present application. As used herein, unless the context clearly indicates otherwise, the singular form is also intended to include the plural form. In addition, it should be understood that when the terms "comprise" and / or "include" are used in this specification, it indicates the presence of features, steps, operations, devices, components and / or combinations thereof.

[0034] It should be noted that the terms "first", "second", etc. in the specification and claims of the present application and the above-mentioned drawings are used to distinguish similar objects, and are not necessarily used to describe a specific order or sequence. It should be understood that the data used in this way can be interchangeable where appropriate, so that the embodiments of the present application described herein can be implemented in an order other than those illustrated or described herein, for example. In addition, the terms "including" and "having" and any of their variations are intended to cover non-exclusive inclusions, for example, a process, method, system, product or device that includes a series of steps or units is not necessarily limited to those steps or units that are clearly listed, but may include other steps or units that are not clearly listed or inherent to these processes, methods, products or devices.

[0035] The above description is only the preferred embodiment of the utility model, and is not intended to limit the utility model. For those skilled in the art, the utility model can have various modifications and changes. Any modification, equivalent replacement, improvement, etc. made within the spirit and principle of the utility model shall be included in the protection scope of the utility model.

Claims

1. A duct reinforcement device for a blast furnace dust removal fan, comprising a mounting frame (1), characterized in that: A clamping mechanism (2) is arranged inside the mounting frame (1), and a pushing mechanism is installed on the mounting frame (1); The pushing mechanism comprises two groups of first workpieces (9) located inside the mounting frame (1) and symmetrically arranged, and each group of first workpieces (9) is provided with two first workpieces (9), the two first workpieces (9) are symmetrically arranged, the top of the first workpiece (9) is rotatably arranged on the top of the inner wall of the mounting frame (1), a second workpiece (10) is arranged on the first workpiece (9), a connecting plate (19) is rotatably arranged at the middle position of the inner wall of the second workpiece (10), and the other end of the connecting plate (19) is fixed to the inner wall of the mounting frame (1), and the same side pressure roller (13) is fixed between the two second workpieces (10) located on the same side, and the pushing mechanism is used to realize the deflection of the first workpiece (9).

2. The air duct reinforcement device for a blast furnace dust removal fan according to claim 1, characterized in that: The pushing mechanism comprises a screw rod (3) threadedly connected to the top of the mounting frame (1); the inner top of the mounting frame (1) is provided with two symmetrically arranged push plates (6); the push plates (6) are provided with slots (7); the two push plates (6) are fixed with the same reinforcing plate (4); the top of the reinforcing plate (4) is rotatably provided with a connecting block; the bottom of the screw rod (3) is fixed to the connecting block.

3. The air duct reinforcement device for a blast furnace dust removal fan according to claim 2, characterized in that: An arc-shaped sliding groove (15) is formed on the outer wall of the first workpiece (9), and a second limiting head (18) slidably arranged in the arc-shaped sliding groove (15) is fixed on the outer wall of the push plate (6).

4. The air duct reinforcement device for a blast furnace dust removal fan according to claim 3, characterized in that: The outer wall of the first workpiece (9) is provided with a sliding opening (16) obliquely below the arc-shaped sliding groove (15), and the second workpiece (10) is fixed with a first limiting head (17) located in the sliding opening (16).

5. The air duct reinforcement device for a blast furnace dust removal fan according to claim 4, characterized in that: Both sides of the push plate (6) are arranged as inclined structures, a notch is provided on the top of the second workpiece (10), and a roller (14) is rotatably arranged in the notch, the roller (14) is closely attached to the inclined surface of the push plate (6), and the same blocking bar (8) is fixed to the sides of the two push plates (6).

6. The air duct reinforcement device for a blast furnace dust removal fan according to claim 5, characterized in that: A fixing ear (11) is fixed to the bottom of the push plate (6), and the two fixing ears (11) are fixed with the same upper pressure roller (12).

7. The air duct reinforcement device for a blast furnace dust removal fan according to claim 6, characterized in that: Two cross links (5) are installed on the top of the reinforcing plate (4), and the cross links (5) include a first link and a second link, the first link and the second link are rotatably connected, the bottom of the first link is rotatably connected to the top of the reinforcing plate (4), and the top of the second link is rotatably connected to the bottom of the inner wall of the mounting frame (1).

Images