Rotary refining mechanism and slag skimming refining apparatus

Abstract

The utility model discloses a rotary refining mechanism and a slagging refining equipment, wherein the rotary refining mechanism comprises a mounting frame and a refining pipe, the refining pipe is horizontally arranged, the head end of the refining pipe is provided with a refining elbow bent downwards, the refining pipe and the refining elbow are hollow inside, the tail end of the refining pipe is rotatably connected to the mounting frame, and the refining pipe rotates around its own axis, the tail end of the refining pipe is also connected with an air hose, a power device is arranged on the mounting frame, and a transmission device is arranged between the power device and the refining pipe. By rotating the refining pipe, the refining elbow is rotated to an inclined state or a horizontal state, the vertical height is shortened, and the furnace inlet and outlet are directly accessed again. The utility model utilizes this rotating mode to achieve the purpose of quickly accessing the furnace inlet and outlet, has the advantages of simple structure and convenient operation, and simultaneously, the swinging refining elbow can change the injection height of the refining agent and improve the injection uniformity, thereby improving the refining efficiency and refining quality.

Description

Technical Field

[0001] This utility model relates to the field of slag removal and refining, and in particular to a rotary refining mechanism and a slag removal and refining device including such a refining mechanism. Background Technology

[0002] In the aluminum smelting process, the molten aluminum needs to be refined to remove gas and slag, resulting in relatively pure aluminum. Currently, aluminum refining is mainly done manually. Steel pipes are used to blow the necessary refining gases and powders into the holding furnace, and the aluminum is manually stirred to ensure thorough mixing. The operator must move the refining pipe back and forth along a designated path within the furnace for even distribution. This manual refining method is only suitable for slag removal in small holding furnaces and is unsuitable for large furnaces. It is not only labor-intensive but also produces poor refining results. Furthermore, the temperature inside the holding furnace during refining exceeds 750℃, exposing the operator to high-temperature radiation, creating a harsh working environment.

[0003] To improve refining efficiency, existing technologies provide automated refining mechanisms. These mechanisms utilize a moving trolley to propel the refining tube back and forth, distributing gas and powder within the molten aluminum. Because the molten aluminum level inside the furnace is lower than the furnace opening height, and to minimize internal heat loss, the furnace opening is positioned approximately in the middle of the furnace body, exhibiting a flat shape with a narrow height and wide width. For example, in a large holding furnace with an internal width of approximately 6m, a height of approximately 1.8m, and a depth of approximately 4m, the highest molten aluminum level inside the furnace is approximately 0.7m, the furnace opening width is approximately 1.4m, and the height is approximately 0.57m, with the furnace opening located approximately 0.1m above the molten aluminum level. In order to allow the refining tube entering the furnace to extend below the liquid surface for refining, the front end of the refining tube is bent downwards to a height of up to 0.7m. Because the front end of the refining tube is bent downwards, it cannot directly enter or exit the furnace. When entering the furnace, the refining tube is first raised to its highest point using a lifting mechanism, and then lowered while entering the furnace. When exiting the furnace, the refining tube is raised while exiting the furnace using a lifting mechanism. During the process of entering and exiting the furnace, the position of the refining tube needs to be repeatedly adjusted, which is difficult to operate and results in low refining efficiency. Summary of the Invention

[0004] The technical problem to be solved by this utility model is to provide a rotary refining mechanism that facilitates the entry and exit of refining tubes from the furnace inlet and improves refining efficiency.

[0005] To solve the above-mentioned technical problems, the technical solution of this utility model is: a rotary refining mechanism, including a mounting frame and a refining tube, wherein the refining tube is horizontally arranged, and the head end of the refining tube is provided with a refining elbow that bends downward. The refining tube and the refining elbow are hollow inside. The tail end of the refining tube is externally rotatably connected to the mounting frame and the refining tube rotates around its own axis. The tail end of the refining tube is also connected to a ventilation hose. A power device is provided on the mounting frame, and a transmission device is provided between the power device and the refining tube.

[0006] As a preferred technical solution, a support bushing is fixed to the outside of the refining tube, and the support bushing is rotatably connected to the mounting bracket through a bearing and a bearing seat.

[0007] As a preferred technical solution, the transmission device includes a driving sprocket and a driven sprocket, which are connected by a chain drive. The driving sprocket is installed at the output end of the power device, and the driven sprocket is installed outside the tail end of the refining tube. Alternatively, the transmission device may include a driving gear and a driven gear that mesh with each other, with the driving gear installed at the output end of the power device and the driven gear installed outside the tail end of the refining tube.

[0008] As a preferred technical solution, an auxiliary bracket is fixed on one side of the head end of the refining tube on the mounting frame, and a support shaft seat is provided on the auxiliary bracket, and the refining tube is rotatably mounted on the support shaft seat.

[0009] As a preferred technical solution, the slag removal and refining equipment includes a traveling trolley, a platform above the traveling trolley, a mechanical beam rotatably mounted on the top of the platform, a slag removal mechanism and a rotary refining mechanism respectively at both ends of the mechanical beam, the end of the slag removal mechanism being rotatably mounted on one end of the mechanical beam, and the end of the rotary refining mechanism being rotatably mounted on the other end of the mechanical beam.

[0010] As a preferred technical solution, the mechanical crossbeam is provided with a rotating module one, a rotating module two, and a rotating module three. The mechanical crossbeam is rotatably connected to the platform through rotating module one, the slag removal mechanism is rotatably connected to the mechanical crossbeam through rotating module two, and the rotating refining mechanism is rotatably connected to the mechanical crossbeam through rotating module three.

[0011] As a preferred technical solution, a refining tank is installed on the traveling trolley, a hose channel 1 is provided through the center of the rotating module 1, a hose channel 2 is provided through the center of the rotating module 3, and the ventilation hose passes through the hose channel 2 and the hose channel 1 in sequence to connect to the refining tank.

[0012] Due to the adoption of the above technical solution, the beneficial effects of this utility model are as follows: This device no longer requires repeated adjustment of the refining tube height. When the refining tube is at the corresponding height of the furnace opening, the refining elbow is rotated to an inclined or horizontal state by rotating the refining tube, shortening the vertical height and directly entering and exiting the furnace opening again. This application utilizes this rotation method to achieve the purpose of rapid entry and exit from the furnace opening, which has the advantages of simple structure and convenient operation. It cleverly solves the problem of low refining efficiency caused by repeated height adjustments in the traditional method. At the same time, the swinging refining elbow can also change the spray height of the refining agent and improve the spray uniformity. This method of using the rotation of the refining tube to drive the swinging of the refining elbow has multiple advantages, is simple to operate, low in cost, and effectively improves refining efficiency and refining quality. Attached Figure Description

[0013] The accompanying drawings are intended only to illustrate and explain the present invention and do not limit the scope of the present invention.

[0014] Figure 1 This is a schematic diagram of the refining mechanism according to Embodiment 1 of this utility model; Figure 2 This is a partial structural schematic diagram of the refining mechanism according to Embodiment 1 of this utility model; Figure 3 This is a working state diagram of Embodiment 1 of this utility model; Figure 4 This is a schematic diagram of the slag removal and refining equipment according to Embodiment 2 of this utility model; Figure 5 This is a layout diagram of the ventilation hose according to Embodiment 2 of this utility model; In the diagram: 1-Mounting bracket; 2-Refining pipe; 3-Refining elbow; 4-Ventilation hose; 5-Support bushing; 6-Drive sprocket; 7-Driven sprocket; 8-Chain; 9-Auxiliary bracket; 10-Support shaft seat; 11-Reducer; 12-Traveling trolley; 13-Platform; 14-Mechanical beam; 15-Slag removal mechanism; 16-Rotating module one; 17-Rotating module two; 18-Rotating module three. Detailed Implementation

[0015] The present invention will be further described below with reference to the accompanying drawings and embodiments. In the following detailed description, only certain exemplary embodiments of the present invention are described by way of illustration. Undoubtedly, those skilled in the art will recognize that various modifications can be made to the described embodiments without departing from the spirit and scope of the present invention. Therefore, the drawings and description are illustrative in nature and not intended to limit the scope of the claims.

[0016] Example 1: like Figure 1 and Figure 2As shown, the rotary refining mechanism includes a mounting frame 1 and a refining tube 2. The refining tube 2 is horizontally arranged, and its head end has a downwardly bent refining elbow 3. The refining tube 2 and the refining elbow 3 are hollow inside. The tail end of the refining tube 2 is externally rotatably connected to the mounting frame 1, and the refining tube 2 rotates around its own axis. A venting hose 4 is connected and fixed to the tail end of the refining tube 2. The venting hose 4 can be sleeved and fixed to the tail end of the refining tube 2 or fixed with a clamp. The other end of the venting hose 4 is connected to the refining tank. The venting hose 4 is also fixed at a fixed point on the mounting frame 1 by a strap. A power unit is provided on the mounting frame 1, and a transmission device is provided between the power unit and the refining tube 2.

[0017] The ventilation hose 4 is flexible. When the refining tube 2 rotates, the ventilation hose 4 will deform adaptively. When the refining tube 2 rotates, it rotates counterclockwise or clockwise 0-90° back and forth, and the ventilation hose 4 will not be tangled.

[0018] The refining elbow 3 can be bent downwards by 45°-60°, and the vertical height of the refining elbow 3 can reach 0.7m.

[0019] A support sleeve 5 is fixed to the outside of the refining tube 2. The support sleeve 5 is rotatably connected to the mounting frame 1 through a bearing and a bearing seat, ensuring that the refining tube 2 can only rotate along the axis and cannot move along the axis.

[0020] The transmission device includes a driving sprocket 6 and a driven sprocket 7, which are connected by a chain 8. The driving sprocket 6 is mounted at the output end of the power unit, and the driven sprocket 7 is mounted outside the tail end of the refining tube 2. Alternatively, the transmission device can have other structures, such as a meshing driving gear and driven gear, with the driving gear mounted at the output end of the power unit and the driven gear mounted outside the tail end of the refining tube 2.

[0021] An auxiliary bracket 9 is fixed on one side of the head end of the refining tube 2 on the mounting frame 1. A support shaft seat 10 is provided on the auxiliary bracket 9. The refining tube 2 is rotatably mounted on the support shaft seat 10, and the support shaft seat 10 provides auxiliary support for the refining tube 2. The support shaft seat 10 can be a bearing seat.

[0022] The power unit includes a motor and a reducer 11, and the drive sprocket 6 is fixed on the output shaft of the reducer 11.

[0023] The working principle of this embodiment is as follows: To facilitate the entry and exit of the refining tube 2 from the flat furnace opening, its structure was modified so that it can rotate around its own axis, causing the refining elbow 3 at its front end to rotate. After the vertical refining elbow 3 rotates to one side, its vertical height becomes shorter than the height of the furnace opening, allowing it to quickly enter and exit the furnace. See the image for the state where it is fully inserted into the furnace. Figure 3 When entering or exiting the furnace, it is only necessary to start the power unit. The drive sprocket 6 drives the driven sprocket 7 to rotate through the chain 8, thereby causing the refining tube 2 to rotate, and causing the refining elbow 3 at the front end to rotate and swing.

[0024] The swing-type refined elbow 3 of this application has multiple advantages, as follows: In traditional refining tube 2, when it enters or exits the furnace opening, the height of the refining tube 2 needs to be repeatedly adjusted after it is at the corresponding height of the furnace opening, moving it up and down while entering and exiting the furnace opening. However, in this device, it is no longer necessary to repeatedly adjust the height of the refining tube 2. After the refining tube 2 is at the corresponding height of the furnace opening, the refining tube 2 is rotated to make the refining elbow 3 rotate to an inclined or horizontal state, shortening the vertical height and allowing it to directly enter and exit the furnace opening again. This application utilizes this rotation method to achieve the purpose of rapid entry and exit from the furnace opening. It has the advantages of simple structure and convenient operation, and cleverly solves the problem of low refining efficiency caused by repeated height adjustments in traditional methods. 2. In traditional refining equipment, when it is necessary to change the spray height of the refining agent, an external lifting mechanism is required to drive the refining tube 2 to rise and fall as a whole for vertical adjustment. At this time, the refining equipment must be equipped with a lifting mechanism. However, in this application, since the refining elbow 3 rotates around the axis of the refining tube 2, when the refining elbow 3 rotates, the bottom end of the refining elbow 3 (refining outlet) will undergo longitudinal displacement, that is, change the spray height of the refining agent. At this time, the adjustment requirement of the spray height can be met without the need for an external lifting mechanism. Therefore, in the refining equipment, the external lifting mechanism can be omitted, simplifying the structure of the refining equipment. At the same time, not setting a lifting mechanism does not affect the inlet and outlet of the furnace. Third, in traditional refining equipment, the refining tube 2 needs to move back and forth to spray the refining agent so that the refining agent can be evenly distributed. In the refining process of this application, the refining elbow 3 can swing left and right at a certain amplitude to spray the refining agent, and spray the refining agent into the aluminum liquid in a swinging manner. This swinging action can not only expand the spraying surface of the refining agent, but also make the refining agent and aluminum liquid mix evenly, and further improve the uniformity of the refining agent.

[0025] This application utilizes the rotation of the refining tube 2 to achieve multiple functions such as smooth entry and exit of the refining elbow 3 from the furnace door, adjustment of the refining agent injection height, and improvement of the uniformity of the refining agent. It is simple to operate, low in cost, and effectively improves refining efficiency and refining quality.

[0026] Example 2: This embodiment is an improvement on the first embodiment, applying a rotary refining mechanism to a slag-refining equipment.

[0027] See Figure 4 The slag removal and refining equipment includes a traveling trolley 12, a platform 13 above the traveling trolley 12, a mechanical beam 14 rotatably mounted on the top of the platform 13, a slag removal mechanism 15 and a rotary refining mechanism respectively at both ends of the mechanical beam 14, the end of the slag removal mechanism 15 being rotatably mounted on one end of the mechanical beam 14, and the end of the rotary refining mechanism being rotatably mounted on the other end of the mechanical beam 14.

[0028] In this embodiment, the traveling trolley 12 is a track trolley, with tracks laid on the floor of the workshop or factory. The tracks are located in front of the furnace opening of the heat preservation furnace and are set along the depth direction of the furnace, allowing the traveling trolley 12 to move along the tracks and adjust the distance between the equipment and the heat preservation furnace. The wheels of the track trolley can be driven by hub motors, which is existing technology and will not be described in detail here.

[0029] The mechanical beam 14 is equipped with a rotating module 16, a rotating module 2 17, and a rotating module 3 18. The mechanical beam 14 is rotatably connected to the platform 13 through the rotating module 16. The slag removal mechanism 15 is rotatably connected to the mechanical beam 14 through the rotating module 2 17. The rotating refining mechanism is rotatably connected to the mechanical beam 14 through the rotating module 3 18.

[0030] A refining tank is mounted on the traveling trolley 12. A first flexible hose channel is provided through the center of the rotating module 16, and a second flexible hose channel is provided through the center of the rotating module 18. The ventilation hose 4 passes through the second and first flexible hose channels sequentially and connects to the refining tank. The ventilation hose 4 can be fixed at a fixed point using straps or connectors when passing through the second and first flexible hose channels. The rotating modules 16, 17, and 18 can be hollow rotating platforms, with the top and bottom rotating relative to each other axially, and the rotation center is hollow. This is existing technology and will not be described further here.

[0031] This device arranges the refining tank on the traveling trolley 12 for easy replacement or maintenance. The refining agent in the refining tank is then guided into the refining pipe 2 via the ventilation hose 4, and can be sprayed into the furnace through the front refining elbow 3. A valve can be installed on the ventilation hose 4, and the valve is controlled by a controller to open and close. Since both the mechanical beam 14 and the rotary refining mechanism can rotate, to avoid interference or damage to the ventilation hose 4 during rotation, a channel is set at the center of the rotating modules 16 and 38 to facilitate the passage of the ventilation hose 4, taking advantage of the fact that the rotation center positions of the rotating modules 16 and 3 remain unchanged.

[0032] 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 illustrative of the principles of this 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 claims. The scope of protection of this utility model is defined by the appended claims and their equivalents.

Claims

1. A rotary refining mechanism, comprising a mounting frame and a refining tube, characterized in that: The refining tube is horizontally arranged, and the head end of the refining tube is provided with a refining elbow that bends downward. The refining tube and the refining elbow are hollow inside. The tail end of the refining tube is externally rotatably connected to the mounting frame, and the refining tube rotates around its own axis. The tail end of the refining tube is also connected to a ventilation hose. The mounting frame is provided with a power unit, and a transmission device is provided between the power unit and the refining tube.

2. The rotary refining mechanism as described in claim 1, characterized in that: A support bushing is fixed to the outside of the refining tube, and the support bushing is rotatably connected to the mounting bracket through a bearing and a bearing seat.

3. The rotary refining mechanism as described in claim 1, characterized in that: The transmission device includes a driving sprocket and a driven sprocket, which are connected by a chain drive. The driving sprocket is installed at the output end of the power device, and the driven sprocket is installed outside the tail end of the refining tube. Alternatively, the transmission device may include a driving gear and a driven gear that mesh with each other, with the driving gear installed at the output end of the power device and the driven gear installed outside the tail end of the refining tube.

4. The rotary refining mechanism as described in claim 1, characterized in that: An auxiliary bracket is fixed on one side of the head end of the refining tube on the mounting frame. The auxiliary bracket is provided with a support shaft seat, and the refining tube is rotatably mounted on the support shaft seat.

5. Slag removal and refining equipment, characterized in that: The device includes a traveling trolley, with a platform above the traveling trolley. A mechanical beam is rotatably mounted on the top of the platform. A slag-removing mechanism and a rotary refining mechanism as described in any one of claims 1 to 4 are respectively provided at both ends of the mechanical beam. The end of the slag-removing mechanism is rotatably mounted on one end of the mechanical beam, and the end of the rotary refining mechanism is rotatably mounted on the other end of the mechanical beam.

6. The slag removal and refining equipment as described in claim 5, characterized in that: The mechanical crossbeam is equipped with a rotating module one, a rotating module two, and a rotating module three. The mechanical crossbeam is rotatably connected to the platform through rotating module one. The slag removal mechanism is rotatably connected to the mechanical crossbeam through rotating module two. The rotating refining mechanism is rotatably connected to the mechanical crossbeam through rotating module three.

7. The slag removal and refining equipment as described in claim 6, characterized in that: The trolley is equipped with a refining tank. The center of the rotating module one is provided with a hose channel one, and the center of the rotating module three is provided with a hose channel two. The ventilation hose passes through the hose channel two and the hose channel one in sequence and connects to the refining tank.

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