Replacing device for aluminum electrolysis production insulating smoke tube

Abstract

The utility model relates to the technical field of aluminum electrolysis production insulation smoke tube replacement, and discloses an aluminum electrolysis production insulation smoke tube replacement device which comprises a portal frame, a lifting frame is arranged on the portal frame in a sliding mode, and a sliding driving unit used for driving the lifting frame to vertically slide is arranged on the portal frame. A smoke tube clamping assembly used for clamping an insulating smoke tube is rotationally arranged on the lifting frame, and a rotation driving unit used for driving the smoke tube clamping assembly to rotate on the lifting frame is further arranged on the lifting frame. According to the scheme, the insulating smoke tube can be lifted and replaced, and the defect that operation is tedious and potential safety hazards exist when a worker climbs to a high position to lift the smoke tube are avoided.

Description

Technical Field

[0001] This utility model relates to the field of replacing insulating smoke tubes in aluminum electrolysis production, and specifically to a replacement device for insulating smoke tubes in aluminum electrolysis production. Background Technology

[0002] Currently, in the electrolytic aluminum industry, two insulated flue pipes are used at the flue end to achieve insulation of the electrolytic cell flue gas recovery system.

[0003] Under prolonged exposure to high temperatures and corrosive flue gas, insulated flue pipes may become damaged or cracked. A cracked insulated flue pipe can destroy the entire supporting structure of the flue pipe and cause a decrease in the negative pressure inside the electrolytic cell, leading to pressure imbalance and affecting the normal operation of the electrolytic cell. Therefore, it is necessary to replace the insulated flue pipe.

[0004] To ensure that personnel can work without spatial constraints, insulated flue pipes are generally installed at a high height. When replacing insulated flue pipes, personnel need to use ladders to climb to a high place and lift the flue pipes to replace them. This process can cause fatigue for the workers and create safety hazards.

[0005] Therefore, a new technical solution is needed to address the above problems. Utility Model Content

[0006] The present invention aims to provide a replacement device for insulating smoke tubes in aluminum electrolysis production, so as to lift the insulating smoke tubes and avoid the cumbersome operation and safety hazards of manually climbing to high places to lift the smoke tubes.

[0007] To achieve the above objectives, the present invention adopts the following technical solution: a replacement device for insulating smoke tubes in aluminum electrolysis production, comprising a gantry frame, a lifting frame slidably mounted on the gantry frame, a sliding drive unit for driving the lifting frame to slide vertically on the gantry frame, a smoke tube clamping assembly for clamping the insulating smoke tube rotatably mounted on the lifting frame, and a rotation drive unit for driving the smoke tube clamping assembly to rotate on the lifting frame.

[0008] The principle and advantages of this solution are as follows: In this solution, the flue clamping assembly is used to clamp and fix the flue. By setting up a gantry frame, the sliding drive unit can cause the lifting platform carrying the flue clamping assembly to slide and move on the gantry frame, thereby achieving automatic lifting of the flue. Therefore, when replacing the flue, there is no need for personnel to climb to a high place to lift the flue, making it more convenient to use and reducing safety hazards. At the same time, the rotary drive unit can drive the flue clamping assembly to rotate on the lifting frame, thereby changing the lifting angle of the flue to keep the flue at a suitable angle for easy replacement.

[0009] Preferably, as an improvement, the pipe clamping assembly includes a fixed slide rail rotatably mounted on the lifting frame and a pipe clamp mounted on the fixed slide rail, and a rotary drive unit is connected to the fixed slide rail and used to drive the fixed slide rail to rotate on the lifting frame.

[0010] With the above solution, the flue holder is used to hold and fix the flue. The rotation drive unit can make the fixed slide rail drive the flue holder and the flue held to rotate on the lifting frame, so as to change the angle and position of the flue and make the flue better adapt to the position and angle requirements when replacing it.

[0011] Preferably, as an improvement, the pipe clamp includes two symmetrically distributed sets of clamping components, both sets of clamping components are arc-shaped, and the area between the two sets of clamping components is the pipe clamping area. Each clamping component includes a fixed component and a movable component rotatably connected to the fixed component. The fixed component is connected to a fixed slide rail.

[0012] The above solution combines fixed and movable components in the clamping mechanism, making it easy to open the clamping mechanism and insert the flue into the flue holder, thus facilitating the flue assembly process. The clamping mechanism is also designed in an arc shape to better adapt to the circumferential shape of the flue, ensuring effective clamping and securing of the flue.

[0013] Preferably, as an improvement, the fixed component is slidably connected to the fixed slide rail, and the fixed component is connected to a drive source for driving the fixed component to slide along the fixed slide rail.

[0014] By using the above solution, the fixed component is slidably mounted on the fixed slide rail, making the position of the flue holder on the fixed slide rail adjustable. On the one hand, the position of the flue can be adjusted to meet replacement needs. On the other hand, when installing the flue, the clamping component can be moved to the end position of the fixed slide rail by the drive source for flue assembly, making it easier to install the flue into the flue holder.

[0015] Preferably, as an improvement, the driving source is a lead screw assembly, which includes a lead screw and a sliding sleeve sleeved on the lead screw and threadedly engaged with the lead screw. The lead screw is rotatably mounted on a fixed slide rail, and the axis of the lead screw is parallel to the axis of the fixed slide rail. The sliding sleeve is fixedly connected to a fixed component, and at the same time, the sliding sleeve is slidably connected to the fixed slide rail.

[0016] With the above scheme, the lead screw assembly is used to drive the fixed component to slide on the fixed slide rail to adjust the position of the flue clamp. Specifically, when the lead screw rotates, the screw drives the sliding sleeve to move along the axis of the lead screw under the push of the thread, thereby causing the flue clamp to move on the fixed slide rail along the axis of the fixed slide rail, so as to achieve the purpose of adjusting the position of the flue.

[0017] Preferably, as an improvement, the gantry includes a main gantry and a secondary gantry that is vertically slidably connected to the main gantry, and the lifting frame is vertically slidably connected to the secondary gantry.

[0018] The above-described solution, employing a combination of a main gantry and an auxiliary gantry, along with a lifting frame and an auxiliary gantry, creates a quadruple lifting effect when raising the flue pipe. The first effect comes from the relative sliding between the main and auxiliary gantry frames; the second from the relative sliding between the lifting frame and the auxiliary gantry frame; the third from the rotation of the fixed guide rail on the lifting frame; and the fourth from the sliding of the flue pipe holder on the fixed guide rail. This quadruple lifting significantly alters the lifting height of the flue pipe, making it suitable for flue pipe replacement operations in higher factory buildings and broadening its applicability. Furthermore, this design allows for retractable equipment, enabling selective reduction of the equipment height for easy storage and movement within the factory.

[0019] Preferably, as an improvement, the sliding drive unit is a pulley assembly, which is used to control the sliding of the secondary gantry on the main gantry, and the pulley assembly is also used to control the sliding of the lifting frame on the secondary gantry.

[0020] The above scheme uses a pulley assembly to control the movement of the secondary gantry and the lifting frame. Compared with the use of cylinders, gear rack structures, or other structures for driving, the movement stroke of the drive structure does not need to be large, making it easier to arrange and control the movement of the structure.

[0021] Preferably, as an improvement, the pulley assembly includes a first pulley and a second pulley located at the upper end of the main gantry frame, a third pulley and a fourth pulley located at the lower end of the secondary gantry frame, and a fifth pulley located at the upper end of the secondary gantry frame. A winch is fixed on the main gantry frame, and a first pull rope is wound on the winch. The end of the first pull rope away from the winch passes through the first pulley, the third pulley, the second pulley, and the fourth pulley in sequence and is then fixed to the upper end of the main gantry frame. A second pull rope is also fixed to the upper end of the main gantry frame, and the end of the second pull rope away from the main gantry frame passes through the fifth pulley and is then fixed to the lifting frame.

[0022] With the above scheme, when the winch is working, the first pull rope is wound up, and the first pull rope slides on the pulley and pulls the secondary gantry frame upward, realizing the initial lifting of the flue pipe. During the upward process of the secondary gantry frame, since the end of the second pull rope is fixed to the main gantry frame, the second pull rope slides on the fifth pulley and pulls the lifting frame, causing the lifting frame to slide and rise on the secondary gantry frame, so as to realize the secondary lifting of the flue pipe. Through this scheme, the movement control of the secondary gantry frame and the lifting frame can be realized simultaneously using the winch, which increases the lifting height of the flue pipe and improves the lifting efficiency.

[0023] Preferably, as an improvement, the fifth pulley and the second pull rope are provided with two sets of matching working parts. The two sets of fifth pulleys are located at the left and right ends of the auxiliary gantry frame, respectively, and the two sets of second pull ropes are fixedly connected to the left and right ends of the lifting frame after passing through the fifth pulleys.

[0024] The above scheme uses two sets of fifth pulleys and a second rope to control the movement of the lifting platform simultaneously, which can ensure the stability of the lifting frame during movement and make the lifting of the flue pipe safer and more reliable.

[0025] Preferably, as an improvement, the bottom of the main gantry is equipped with rollers for rotation.

[0026] The above design of the rollers facilitates the movement of the device within the factory area and makes it convenient for practical use. Attached Figure Description

[0027] Figure 1 This is a three-dimensional structural diagram of Example 1.

[0028] Figure 2 This is a schematic diagram of the structure of the flue clamp in Example 1.

[0029] Figure 3 This is a schematic diagram showing the state of the flue when the flue clamp is holding the flue.

[0030] Figure 4 This is a structural diagram of the fixed slide rail, lead screw assembly, and flue clamp.

[0031] Figure 5 This is a schematic diagram of the main gantry, auxiliary gantry, lifting frame, and pulley assembly in Example 2.

[0032] Figure 6 This is a three-dimensional structural diagram of Example 2.

[0033] Figure 7 This is a schematic diagram of the state when Example 2 is fully lifted. Detailed Implementation

[0034] The following detailed description provides further details on specific embodiments, but the embodiments of this utility model are not limited thereto. Unless otherwise specified, the technical means used in the following embodiments are conventional means well known to those skilled in the art; the experimental methods used are all conventional methods; and the materials and reagents used are all commercially available.

[0035] The reference numerals in the accompanying drawings of the instruction manual include: gantry frame 1, main gantry frame 2, auxiliary gantry frame 3, lifting frame 4, fixed slide rail 5, smoke pipe clamp 6, motor 7, smoke pipe clamping area 8, fixed component 9, moving component 10, lead screw 11, sliding sleeve 12, first pulley 13, second pulley 14, third pulley 15, fourth pulley 16, fifth pulley 17, winch 18, first pull rope 19, second pull rope 20, roller 21, smoke pipe 22.

[0036] Example 1

[0037] This embodiment provides a replacement device for an insulating smoke tube used in aluminum electrolysis production, such as... Figure 1 As shown, the system includes a gantry frame 1, a lifting frame 4 slidably mounted on the gantry frame 1, a sliding drive unit for driving the lifting frame 4 to slide vertically on the gantry frame 1, a flue clamping assembly for clamping the insulated flue 22 rotatably mounted on the lifting frame 4, and a rotary drive unit for driving the flue clamping assembly to rotate on the lifting frame 4. In this embodiment, the sliding drive unit is a cylinder, the cylinder seat is fixed on the gantry frame 1, and the cylinder drive shaft is fixed on the lifting frame 4, thereby driving the lifting frame 4 to slide vertically on the gantry frame 1 to change the height of the flue clamping assembly.

[0038] The pipe clamping assembly includes a fixed slide rail 5 rotatably mounted on the lifting frame 4 via a rotating shaft and a pipe clamp 6 mounted on the fixed slide rail 5. A rotary drive unit is connected to the fixed slide rail 5 and is used to drive the fixed slide rail 5 to rotate on the lifting frame 4. In this embodiment, the rotary drive unit is a motor 7. The base of the motor 7 is fixed on the lifting frame 4, and the drive shaft of the motor 7 is connected to the fixed slide rail 5 so as to drive the pipe clamping assembly to rotate on the lifting frame 4. The specific connection and transmission method between the motor and the fixed slide rail 5 are well known in the art. For example, they can be connected by a reducer or a gear set for transmission, etc. The specific structure will not be described in detail here.

[0039] The structure of the smoke pipe clamp 6 is as follows Figure 2 and Figure 3 As shown, the structure includes two symmetrically distributed clamping components, both of which are arc-shaped, with a flue clamping area 8 between them. Each clamping component includes a fixed component 9 and a movable component 10 rotatably connected to the fixed component 9 via a rotating shaft. In this embodiment, the two fixed components 9 are integrally formed, which enhances the stability of the structure. The fixed component 9 is connected to a fixed slide rail 5. In this embodiment, the fixed component 9 is slidably connected to the fixed slide rail 5. The fixed component 9 is connected to a drive source for driving the fixed component 9 to slide along the fixed slide rail 5. Specifically, in conjunction with... Figure 4As shown, the driving source in this embodiment is a lead screw assembly, which includes a lead screw 11 and a sliding sleeve 12 that is sleeved on the lead screw 11 and threadedly engaged with it. The end of the lead screw 11 is rotatably mounted on a fixed slide rail 5, and the axis of the lead screw 11 is parallel to the axis of the fixed slide rail 5. The sliding sleeve 12 is fixedly connected to the fixed component 9, and simultaneously slidably connected to the fixed slide rail 5. Thus, when the lead screw 11 rotates under the drive of an external driving device, it can push the sliding sleeve 12 to slide along the axis of the lead screw 11, thereby causing the fixed component 9 to move along the fixed slide rail 5.

[0040] In practical applications, combined with Figure 1 When replacing the insulated smoke tube 22 using this device, the fixed slide rail 5 is laid flat, and the smoke tube clamping assembly is moved to the end position of the fixed slide rail 5. After assembling the new smoke tube 22 into the smoke tube clamping area 8 on the smoke tube clamping assembly, the movable part 10 is rotated so that it is attached to the outer wall of the smoke tube 22. Then, locking accessories, such as chains or ropes, are used to lock the two movable parts 10 together to fix the insulated smoke tube 22 to the smoke tube clamping assembly. Then, the lifting frame 4 is controlled to move upward along the gantry frame 1 by the sliding drive unit to lift the insulated smoke tube 22. Then, the fixed slide rail 5 is driven to rotate on the lifting frame 4 by the motor 7 to further raise the height of the smoke tube 22 and adjust its angle to meet the replacement needs. During this process, the sliding sleeve 12 can also be rotated by controlling the lead screw 11 to drive the fixed part 9 to slide along the fixed slide rail 5 to assist in adjusting the position and angle of the smoke tube 22.

[0041] Once the flue pipe 22 reaches the predetermined position, the replacement operation can be carried out. This achieves automatic lifting of the flue pipe 22, avoiding the cumbersome operation of manually climbing to a high place to lift the flue pipe 22, and reducing safety hazards during operation.

[0042] Example 2

[0043] This embodiment is based on embodiment 1, such as... Figure 5 and Figure 6 As shown, the gantry frame 1 includes a main gantry frame 2 and a secondary gantry frame 3 that is vertically slidably connected to the main gantry frame 2, and the lifting frame 4 is vertically slidably connected to the secondary gantry frame 3.

[0044] The sliding drive unit in this embodiment differs from that in Embodiment 1, such as... Figure 5 As shown, in this embodiment, the sliding drive unit adopts a pulley assembly. The pulley assembly is used to control the secondary gantry 3 to slide on the main gantry 2, and the pulley assembly is also used to control the lifting frame 4 to slide on the secondary gantry 3.

[0045] Combination Figure 5 and Figure 6As shown, the pulley assembly includes a first pulley 13 and a second pulley 14 rotatably mounted on the upper end of the main gantry frame 2, a third pulley 15 and a fourth pulley 16 rotatably mounted on the lower end of the auxiliary gantry frame 3, and a fifth pulley 17 rotatably mounted on the upper end of the auxiliary gantry frame 3. A winch 18 is fixed on the main gantry frame 2. A first pull rope 19 is wound on the drive shaft of the winch 18. The end of the first pull rope 19 away from the winch 18 passes through the first pulley 13, the third pulley 15, the second pulley 14, and the fourth pulley 16 in sequence and is then fixed to the upper end of the main gantry frame 2. A second pull rope 20 is also fixed to the upper end of the main gantry frame 2. The end of the second pull rope 20 away from the main gantry frame 2 passes through the fifth pulley 17 and is then fixed to the lifting frame 4. In this embodiment, the fifth pulley 17 and the second pull rope 20 are provided in two sets for matching operation. The two sets of fifth pulleys 17 are located at the left and right ends of the auxiliary gantry 3, respectively. The two sets of second pull ropes 20 pass through the fifth pulleys 17 and are fixedly connected to the left and right ends of the lifting frame 4, respectively. In addition, rollers 21 are rotatably provided at the bottom of the main gantry 2.

[0046] The difference between this embodiment and Embodiment 1 lies in the lifting process of the smoke pipe 22. In this embodiment, the lifting of the smoke pipe 22 is performed in conjunction with... Figure 5 As shown, the control is achieved through a pulley assembly. When the winch 18 is working, it winds the first pull rope 19, thereby pulling the secondary gantry 3 upward. This makes the overall height of the gantry 1 greater than in Embodiment 1, allowing the device to be used for replacing the flue pipe 22 in taller factory buildings. During the upward movement of the secondary gantry 3, the distance between the upper end of the secondary gantry 3 and the upper end of the main gantry 2 increases, causing the second pull rope 20 to slide on the fifth pulley 17, thereby pulling the lifting frame 4 upward. This allows the lifting frame 4 to slide longitudinally on the secondary gantry 3, controlling the position of the lifting frame 4. In this embodiment, the fully open state of the device is as follows: Figure 7 As shown, the lifting height is greatly increased compared to Example 1.

[0047] Furthermore, since there are two sets of fifth pulleys 17 and second ropes 20, the movement of the lifting frame 4 is more stable when controlling its upward movement. The rollers 21 facilitate the movement of the device within the factory area, making it convenient for practical use.

[0048] The above descriptions are merely embodiments of this utility model. Commonly known technical solutions and / or characteristics are not described in detail here. It should be noted that those skilled in the art can make various modifications and improvements without departing from the technical solution of this utility model. These modifications and improvements should also be considered within the scope of protection of this utility model, and will not affect the effectiveness of the implementation of this utility model or the practicality of the patent. The scope of protection claimed in this application should be determined by the content of its claims, and the specific embodiments described in the specification can be used to interpret the content of the claims.

Claims

1. A device for replacing an insulated flue pipe produced by electrolysis of aluminum, characterized in that: It includes a gantry frame, a lifting frame that slides on the gantry frame, a sliding drive unit that drives the lifting frame to slide vertically on the gantry frame, a flue clamping assembly that rotatably clamps the insulated flue on the lifting frame, and a rotary drive unit that drives the flue clamping assembly to rotate on the lifting frame.

2. The device for replacing the insulated flue pipe produced by aluminum electrolysis according to claim 1, characterized in that: The smoke pipe clamping assembly includes a fixed slide rail rotatably mounted on the lifting frame and a smoke pipe clamp mounted on the fixed slide rail. A rotary drive unit is connected to the fixed slide rail and is used to drive the fixed slide rail to rotate on the lifting frame.

3. The device for replacing the insulated pipe of the aluminum electrolysis according to claim 2, characterized in that: The pipe clamp includes two symmetrically distributed clamping components. Both sets of clamping components are arc-shaped, and the area between the two sets of clamping components is the pipe clamping area. Each clamping component includes a fixed component and a movable component rotatably connected to the fixed component. The fixed component is connected to a fixed slide rail.

4. The device for replacing the insulated pipe of the aluminum electrolysis according to claim 3, characterized in that: The fixed component is slidably connected to the fixed slide rail, and the fixed component is connected to a drive source for driving the fixed component to slide along the fixed slide rail.

5. The device for replacing the insulated chimney produced by electrolysis of aluminum according to claim 4, characterized in that: The driving source is a lead screw assembly, which includes a lead screw and a sliding sleeve that is sleeved on the lead screw and threaded with the lead screw. The lead screw is rotatably mounted on a fixed slide rail, and the axis of the lead screw is parallel to the axis of the fixed slide rail. The sliding sleeve is fixedly connected to a fixed component, and at the same time, the sliding sleeve is slidably connected to the fixed slide rail.

6. A device for replacing insulated flue pipes produced by electrolysis of aluminium according to any of claims 1-5, characterised in that: The gantry includes a main gantry and a secondary gantry that is vertically slidably connected to the main gantry, with the lifting frame vertically slidably connected to the secondary gantry.

7. A replacement device for an insulating smoke tube in aluminum electrolysis production according to claim 6, characterized in that: The sliding drive unit is a pulley assembly, which is used to control the secondary gantry to slide on the main gantry, and the pulley assembly is also used to control the lifting frame to slide on the secondary gantry.

8. A replacement device for an insulating smoke tube in aluminum electrolysis production according to claim 7, characterized in that: The pulley assembly includes a first pulley and a second pulley located at the upper end of the main gantry frame, a third pulley and a fourth pulley located at the lower end of the auxiliary gantry frame, and a fifth pulley located at the upper end of the auxiliary gantry frame. A winch is fixed on the main gantry frame, and a first pull rope is wound on the winch. The end of the first pull rope away from the winch passes through the first pulley, the third pulley, the second pulley, and the fourth pulley in sequence and is then fixed to the upper end of the main gantry frame. A second pull rope is also fixed to the upper end of the main gantry frame, and the end of the second pull rope away from the main gantry frame passes through the fifth pulley and is then fixed to the lifting frame.

9. A replacement device for an insulating smoke tube in aluminum electrolysis production according to claim 8, characterized in that: The fifth pulley and the second pull rope are provided with two sets of matching working parts. The two sets of fifth pulleys are located at the left and right ends of the auxiliary gantry frame, respectively. The two sets of second pull ropes pass through the fifth pulleys and are fixedly connected to the left and right ends of the lifting frame, respectively.

10. A replacement device for an insulating smoke tube in aluminum electrolysis production according to claim 9, characterized in that: The bottom of the main gantry frame is equipped with rotating rollers.

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