Telescopic pipe connection structure of electric furnace top suction hood

Abstract

The utility model relates to electric furnace dust collection equipment technical field, concretely is telescopic pipeline connecting structure of electric furnace top suction cover, including mounting panel and cover body, the below of mounting panel is equipped with with its fixed outlet pipe, the below of outlet pipe is equipped with fixed pipe of installing on the top surface of cover body, just the fixed pipe is linked together with outlet pipe through bellow, still include: adjusting mechanism, set up on the mounting panel bottom surface, be used for adjusting the height of fixed pipe and cover body, the adjusting mechanism includes the U -shaped board of fixed in the mounting panel bottom surface, the vertical board of fixed in U -shaped board one vertical board end bottom surface, the moving rod of fixed on fixed pipe outer wall. The utility model through setting up outlet pipe, fixed pipe, bellow constitute telescopic pipeline, and contain U -shaped board, vertical board, moving rod etc. adjusting mechanism, realize cover body height flexible adjustment, promote dust collection effect.

Description

Technical Field

[0001] This utility model relates to the technical field of electric furnace dust collection equipment, specifically to a telescopic pipe connection structure for the top suction hood of an electric furnace. Background Technology

[0002] In industrial production, electric furnaces are commonly used heating equipment. When they are working, they generate a large amount of dusty fumes. If they are not treated in time, they will not only pollute the workshop environment, but also endanger the health of the operators. Therefore, the electric furnace top suction hood has become an indispensable supporting equipment. It is connected to the exhaust system through pipes to collect and discharge the fumes.

[0003] However, the traditional electric furnace top suction hood pipe connection structure has obvious defects. On the one hand, the pipes are mostly rigid fixed connections, which cannot be flexibly adjusted according to the working status of the electric furnace (such as the change of flue gas volume in different smelting stages) and the layout of the site space. When the electric furnace needs to be charged, maintained or repaired, the fixed hood can easily become an obstacle, affecting the convenience of operation. On the other hand, during normal smelting, if the relative height between the hood and the electric furnace is not appropriate, the dust collection effect will be greatly reduced, and some flue gas will escape into the workshop environment.

[0004] On the other hand, existing pipe connection structures lack effective expansion and contraction adjustment functions. When the electric furnace undergoes slight displacement due to factors such as vibration and thermal expansion and contraction during operation, rigid pipes are prone to loosening, deformation, or even damage at the connection points. This not only affects the service life of the equipment but may also cause flue gas leakage due to sealing failure, further exacerbating environmental pollution problems. Against this background, we propose a telescopic pipe connection structure for the electric furnace top suction hood. Utility Model Content

[0005] The purpose of this utility model is to provide a telescopic pipe connection structure for the top suction hood of an electric furnace. By setting an exhaust pipe, a fixed pipe, and a corrugated pipe to form a telescopic pipe, and an adjustment mechanism including a U-shaped plate, a vertical plate, and a moving rod, the height of the hood can be flexibly adjusted to improve the dust collection effect.

[0006] To achieve the above objectives, this utility model provides the following technical solution:

[0007] The telescopic pipe connection structure of the electric furnace top suction hood includes a mounting plate and a hood body. Below the mounting plate is a gas outlet pipe fixed thereto. Below the gas outlet pipe is a fixed pipe mounted on the top surface of the hood body, and the fixed pipe is connected to the gas outlet pipe via a corrugated pipe. The structure also includes:

[0008] An adjustment mechanism, installed on the bottom surface of the mounting plate, is used to adjust the height of the fixed tube and the cover. The adjustment mechanism includes a U-shaped plate fixed to the bottom surface of the mounting plate, a vertical plate fixed to the bottom surface of one of the vertical ends of the U-shaped plate, a moving rod fixed to the outer wall of the fixed tube, an adjustment rod slidably connected to the outer wall of the vertical end of the vertical plate and used to drive the moving rod to rise and fall, a screw rotatably connected between the horizontal end of the vertical plate and the horizontal end of the U-shaped plate and used to drive the adjustment rod to rise and fall, and a motor installed on the outer wall of one of the vertical ends of the U-shaped plate and used to drive the screw to rotate.

[0009] In a preferred embodiment, the vertical plate end of the upright plate is fixed to the bottom surface of the left vertical plate end of the U-shaped plate, the right end of the moving rod is fixed to the outer circumferential wall of the fixed tube near the left end, the adjusting rod is L-shaped, and the left end of the moving rod is fixed to the right surface of the vertical rod end of the adjusting rod near the bottom end.

[0010] In a preferred embodiment, the adjustment mechanism further includes a worm gear rotatably connected between the two vertical ends of the U-shaped plate, a rotating rod rotatably connected to the horizontal end of the U-shaped plate, a rotating column rotatably connected to the horizontal end of the vertical plate, and a worm wheel coaxially fixed on the outer circumference of the rotating rod and meshing with the worm gear. The output shaft of the motor is coaxially connected to the rod body of the worm gear. The screw is coaxially fixed between the rotating rod and the rotating column and is arranged vertically. The screw is threadedly connected to the adjustment rod.

[0011] In a preferred embodiment, a vertical guide groove is provided on the right side surface of the vertical plate end of the upright plate, and a guide block is fixed on the left side surface of the horizontal bar end of the adjusting rod, which is slidably connected to the guide groove on the right side surface of the vertical plate end of the upright plate.

[0012] In a preferred embodiment, the cross-sectional shape of the guide groove on the right side surface of the vertical plate end is convex, and the shape of the guide block is convex, which matches the shape of the guide groove on the outer wall of the vertical plate end.

[0013] In a preferred embodiment, when the bellows is in its original length state, the cross bar end of the adjusting rod is threadedly connected to the outer circumference of the screw near the middle position.

[0014] These five features ensure that the adjusting rod can stably drive the moving rod, thereby raising and lowering the fixed tube and the cover, guaranteeing the stability of the adjustment process. They also ensure that the motor can stably drive the screw to rotate, providing reliable power for the raising and lowering of the adjusting rod, ensuring efficient operation of the adjusting mechanism, making the raising and lowering of the adjusting rod smoother, avoiding deviation, improving adjustment accuracy, making the sliding of the adjusting rod more stable, preventing it from falling off, enhancing the safety of the adjusting mechanism, and making the bellows extension and retraction and the cover adjustment range more reasonable, avoiding excessive extension and retraction that could affect service life.

[0015] In a preferred embodiment, a fixing rod is fixed on the bottom surface of the mounting plate, and several connecting rods are fixed between the fixing rod and the air outlet pipe. The fixing pipe is installed on the top surface of the cover and communicates with its inner cavity. Sealing rings are provided at the contact points of the corrugated pipe, the air outlet pipe, and the fixing pipe, and a sealing ring is also provided at the contact point of the fixing pipe and the cover.

[0016] In a preferred embodiment, the top surface of the mounting plate is provided with a plurality of mounting holes arranged in a matrix, and handles are fixed on both the front and rear surfaces of the mounting plate near the middle position.

[0017] These two features make the exhaust pipe more secure, improve the sealing of pipe connections, reduce smoke and dust leakage, improve dust collection efficiency, make the mounting plate easy to install and move, and increase the flexibility of equipment installation and relocation.

[0018] Compared with the prior art, the beneficial effects of this utility model are:

[0019] 1. This utility model achieves convenient connection between the entire pipeline and the enclosure through the setting of the gas outlet pipe, fixed pipe, and corrugated pipe. The corrugated pipe has good expansion and contraction performance. When the electric furnace changes position due to various factors during operation, or when the site space layout requires adaptive adjustment of the pipeline connection structure, the corrugated pipe can expand and contract accordingly. In this way, the risk of damage caused by rigid pipeline connection is effectively avoided, while ensuring the sealing of the pipeline system, achieving the effect of ensuring the stability and reliability of pipeline connection, and extending the service life of the equipment.

[0020] 2. This utility model achieves flexible adjustment of the height of the fixed tube and the cover through the setting of the adjustment mechanism. The motor drives the screw to rotate, which in turn drives the adjustment rod to rise and fall. The adjustment rod then drives the moving rod, so that the fixed tube and the cover can be adjusted in position according to the working status of the electric furnace and the layout of the site. When the electric furnace needs to perform operations such as adding materials, the cover can be raised appropriately to avoid interference. When normal smelting is required and better dust collection effect is needed, the height of the cover can be lowered. This design achieves the purpose of improving the dust collection effect, adapting to different working scenarios, and enhancing the practicality and functionality of the equipment. Attached Figure Description

[0021] Figure 1 This is a schematic diagram of the overall structure of this utility model;

[0022] Figure 2 This is a partial exploded view of the present invention;

[0023] Figure 3 This is a schematic diagram of the overall structure of the adjustment mechanism in this utility model;

[0024] Figure 4This is a partial exploded view of the adjusting mechanism in this utility model;

[0025] The meanings of the labels in the diagram are as follows:

[0026] 1. Mounting plate; 11. Handle; 2. Cover; 3. Air outlet pipe; 31. Fixing pipe; 32. Corrugated pipe; 33. Fixing rod; 34. Connecting rod; 4. Adjustment mechanism; 41. U-shaped plate; 42. Vertical plate; 43. Adjusting rod; 44. Guide block; 45. Moving rod; 46. Rotating rod; 47. Rotating column; 48. Screw; 49. Motor; 410. Worm gear; 411. Worm. Detailed Implementation

[0027] The technical solutions of the present utility model will be clearly and completely described below with reference to the accompanying drawings. 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.

[0028] Please see Figures 1-2 The present invention provides a technical solution: a telescopic pipe connection structure for an electric furnace top suction hood, including a mounting plate 1 and a hood 2. The mounting plate 1 is provided with an exhaust pipe 3 fixed thereto below it. The exhaust pipe 3 is provided with a fixing pipe 31 installed on the top surface of the hood 2 below it. The fixing pipe 31 is connected to the exhaust pipe 3 through a corrugated pipe 32.

[0029] The connection between the pipe and the cover 2 is convenient through the air outlet pipe 3, the fixed pipe 31, the corrugated pipe 32 and the adjustment mechanism 4, and the pipe is retractable.

[0030] In this embodiment, a fixing rod 33 is fixed on the bottom surface of the mounting plate 1, and several connecting rods 34 are fixed between the fixing rod 33 and the air outlet pipe 3. The fixing pipe 31 is installed on the top surface of the cover 2 and is connected to its inner cavity. The corrugated pipe 32 is provided with sealing rings at the contact points with the air outlet pipe 3 and the fixing pipe 31, and the fixing pipe 31 is also provided with sealing rings at the contact points with the cover 2.

[0031] The fixing rod 33, connecting rod 34 and sealing rings at various parts make the exhaust pipe 3 more secure, improve the sealing of pipe connections, reduce smoke and dust leakage, and effectively improve dust collection efficiency.

[0032] In addition, the top surface of the mounting plate 1 is provided with several mounting holes arranged in a matrix, and handles 11 are fixed on the front and rear sides of the mounting plate 1 near the middle position.

[0033] The mounting holes and handles 11 on the mounting plate 1 make it easy to install and move, improving the flexibility of equipment installation and movement, and facilitating on-site operation.

[0034] like Figures 1-4 As shown, it further includes: an adjustment mechanism 4, which is set on the bottom surface of the mounting plate 1 and is used to adjust the height of the fixed tube 31 and the cover 2. The adjustment mechanism 4 includes a U-shaped plate 41 fixed on the bottom surface of the mounting plate 1, a vertical plate 42 fixed on the bottom surface of one of the vertical plate ends of the U-shaped plate 41, a moving rod 45 fixed on the outer wall of the fixed tube 31, an adjustment rod 43 slidably connected to the outer wall of the vertical plate end of the vertical plate 42 and used to drive the moving rod 45 to rise and fall, a screw 48 rotatably connected between the horizontal plate end of the vertical plate 42 and the horizontal plate end of the U-shaped plate 41 and used to drive the adjustment rod 43 to rise and fall, and a motor 49 installed on the outer wall of one of the vertical plate ends of the U-shaped plate 41 and used to drive the screw 48 to rotate.

[0035] By setting the adjustment mechanism 4, the height of the fixed pipe 31 can be adjusted, thereby adjusting the height of the cover 2. The position of the cover 2 can be flexibly adjusted according to the working status of the electric furnace and the layout of the site space, effectively improving the dust collection effect.

[0036] Specifically, the vertical plate end of the upright plate 42 is fixed to the bottom surface of the left vertical plate end of the U-shaped plate 41, the right end of the moving rod 45 is fixed to the outer circumferential wall of the fixed tube 31 near the left end, the adjusting rod 43 is L-shaped, and the left end of the moving rod 45 is fixed to the right surface of the vertical rod end of the adjusting rod 43 near the bottom end.

[0037] The positional design of the upright plate 42, the moving rod 45, and the L-shaped adjusting rod 43 ensures that the adjusting rod stably drives the moving rod, thereby raising and lowering the fixed tube 31 and the cover 2, thus guaranteeing a stable and reliable adjustment process.

[0038] It is worth noting that the adjustment mechanism 4 also includes a worm 411 rotatably connected between the two vertical ends of the U-shaped plate 41, a rotating rod 46 rotatably connected to the horizontal end of the U-shaped plate 41, a rotating column 47 rotatably connected to the horizontal end of the vertical plate 42, a worm wheel 410 coaxially fixed on the outer circumference of the rotating rod 46 and meshing with the worm 411, the output shaft of the motor 49 coaxially connected to the rod of the worm 411, and a screw 48 coaxially fixed between the rotating rod 46 and the rotating column 47 and arranged vertically, and the screw 48 is threadedly connected to the adjustment rod 43.

[0039] Through the cooperation of worm gear 411, rotating rod 46, rotating column 47, and worm wheel 410, motor 49 stably drives screw 48 to rotate, providing reliable power for the lifting and lowering of adjusting rod 43 and ensuring efficient operation of adjusting mechanism 4.

[0040] It is worth noting that a guide groove is provided on the right side surface of the vertical plate end of the upright plate 42, and a guide block 44 is fixed on the left side surface of the horizontal bar end of the adjusting rod 43, which is slidably connected to the guide groove on the right side surface of the vertical plate end of the upright plate 42.

[0041] The guide groove of the upright plate 42 and the guide block 44 of the adjusting rod 43 make the raising and lowering of the adjusting rod 43 more stable, avoid deviation, significantly improve the adjustment accuracy, and ensure the accurate position of the cover 2.

[0042] It is worth emphasizing that the cross-sectional shape of the guide groove on the right side surface of the vertical plate end of the vertical plate 42 is convex, and the shape of the guide block 44 is convex, which matches the shape of the guide groove on the outer wall of the vertical plate end of the vertical plate 42.

[0043] The convex guide groove and the matching convex guide block 44 make the sliding of the adjusting rod 43 more stable, effectively preventing it from falling off and enhancing the safety of the adjusting mechanism 4 during operation.

[0044] It is worth noting that when the bellows 32 is in its original length state, the cross bar end of the adjusting rod 43 is threadedly connected to the outer circumference of the screw 48 near the middle position.

[0045] By setting the bellows 32 at the original length adjustment rod 43 at the position of the screw 48, the bellows extension and retraction and the adjustment range of the cover 2 are made more reasonable, avoiding excessive extension and retraction and extending the service life of the equipment.

[0046] It should be added that motor 49 is electrically connected to the external PLC and the external power supply via wires, and the external PLC is also electrically connected to the external power supply via wires.

[0047] The motor 49 involved in this embodiment is existing technology, and its structure and working principle are as well known to those skilled in the art, and will not be described in detail here.

[0048] In this embodiment, during actual use, the external PLC controls the motor 49 to start and stop. After the motor 49 starts, the output shaft drives the worm gear 411 to rotate. The worm gear 411 meshes with the worm wheel 410, causing the rotating rod 46 to rotate, which in turn drives the screw 48 and the rotating column 47 to rotate synchronously. When the screw 48 rotates, the adjusting rod 43, which is threaded to one end, rises and falls under the sliding action of the guide block 44 along the guide groove of the vertical plate 42. The adjusting rod 43 drives the moving rod 45, causing the fixed pipe 31 and the cover 2 to rise and fall synchronously. At this time, the corrugated pipe 32 extends and retracts with the rise and fall of the fixed pipe 31, ensuring the connection between the air outlet pipe 3 and the fixed pipe 31. After the adjustment is completed, the PLC controls the motor 49 to stop, the positions of each component are fixed, and the cover 2 is maintained at the required height to achieve the corresponding dust collection effect. Throughout the process, the sealing ring ensures the sealing of the pipe, and the fixed rod 33 and the connecting rod 34 stabilize the air outlet pipe 3, ensuring the stable operation of the device.

[0049] The foregoing has shown and described the basic principles, main features, and advantages of this utility model. Those skilled in the art should understand that this utility model is not limited to the above embodiments. The embodiments and descriptions in the specification are merely preferred examples and are not intended to limit the utility model. Various changes and modifications can be made to this utility model without departing from its spirit and scope, and all such changes and modifications fall within the scope of the claimed utility model. The scope of protection of this utility model is defined by the appended claims and their equivalents.

Claims

1. A telescopic pipe connection structure of a top suction hood of an electric furnace, comprising a mounting plate (1) and a hood body (2), characterized in that, The mounting plate (1) is provided with an air outlet pipe (3) fixed thereto below it. A fixing pipe (31) is provided below the air outlet pipe (3) and installed on the top surface of the cover (2). The fixing pipe (31) is connected to the air outlet pipe (3) through a corrugated pipe (32). The mounting plate (1) also includes: An adjustment mechanism (4) is set on the bottom surface of the mounting plate (1) and is used to adjust the height of the fixed tube (31) and the cover (2). The adjustment mechanism (4) includes a U-shaped plate (41) fixed on the bottom surface of the mounting plate (1), a vertical plate (42) fixed on the bottom surface of one of the vertical plates of the U-shaped plate (41), a moving rod (45) fixed on the outer wall of the fixed tube (31), an adjustment rod (43) slidably connected to the outer wall of the vertical plate (42) and used to drive the moving rod (45) to rise and fall, a screw (48) rotatably connected between the horizontal plate end of the vertical plate (42) and the horizontal plate end of the U-shaped plate (41) and used to drive the adjustment rod (43) to rise and fall, and a motor (49) installed on the outer wall of one of the vertical plates of the U-shaped plate (41) and used to drive the screw (48) to rotate.

2. The telescopic pipe connection structure of the electric furnace top suction hood according to claim 1, characterized in that: The vertical plate end of the upright plate (42) is fixed on the bottom surface of the left vertical plate end of the U-shaped plate (41), the right end of the moving rod (45) is fixed on the outer circumferential wall of the fixed tube (31) near the left end, the shape of the adjusting rod (43) is L-shaped, and the left end of the moving rod (45) is fixed on the right side surface of the vertical rod end of the adjusting rod (43) near the bottom end.

3. The telescopic pipe connection structure of the electric furnace top suction hood according to claim 1, characterized in that: The adjustment mechanism (4) further includes a worm (411) whose rod body is rotatably connected between the two vertical ends of the U-shaped plate (41), a rotating rod (46) rotatably connected to the horizontal end of the U-shaped plate (41), a rotating column (47) rotatably connected to the horizontal end of the vertical plate (42), and a worm wheel (410) coaxially fixed on the outer circumference of the rotating rod (46) and meshing with the worm (411). The output shaft of the motor (49) is coaxially connected to the rod body of the worm (411). The screw (48) is coaxially fixed between the rotating rod (46) and the rotating column (47) and is arranged vertically. The screw (48) is threadedly connected to the adjustment rod (43).

4. The telescopic pipe connection structure of the electric furnace top suction hood according to claim 2, characterized in that: The vertical plate (42) has a guide groove on the right side surface of the vertical plate end, and the horizontal bar end of the adjusting rod (43) has a guide block (44) fixed on the left side surface, which is slidably connected to the guide groove on the right side surface of the vertical plate end.

5. The telescopic pipe connection structure of the electric furnace top suction hood according to claim 4, characterized in that: The cross-sectional shape of the guide groove on the right side surface of the vertical plate (42) is convex, and the shape of the guide block (44) is convex, which matches the shape of the guide groove on the outer wall of the vertical plate (42).

6. The telescopic pipe connection structure of the electric furnace top suction hood according to claim 1, characterized in that: When the bellows (32) is in its original length state, the cross bar end of the adjusting rod (43) is threaded to the outer circumference of the screw (48) near the middle position.

7. The telescopic pipe connection structure of the electric furnace top suction hood according to claim 1, characterized in that: A fixing rod (33) is fixed on the bottom surface of the mounting plate (1). Several connecting rods (34) are fixed between the fixing rod (33) and the air outlet pipe (3). The fixing pipe (31) is installed on the top surface of the cover (2) and is connected to its inner cavity. The corrugated pipe (32) is provided with sealing rings at the contact points with the air outlet pipe (3) and the fixing pipe (31). The fixing pipe (31) is also provided with sealing rings at the contact points with the cover (2).

8. The telescopic pipe connection structure of the electric furnace top suction hood according to claim 1, characterized in that: The mounting plate (1) has a number of mounting holes arranged in a matrix on its top surface, and handles (11) are fixed on the front and rear sides near the middle position of the mounting plate (1).

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