Flow control device

Abstract

The utility model relates to the technical field of aluminum ingot casting equipment, in particular to a flow control device. The device comprises a first public chute, a second public chute and a third public chute, one end, deviating from the furnace eye, of the first public chute is rotationally connected with a first aluminum conveying pipe through a flange assembly; the flange assembly comprises a fixed flange fixedly installed on the first public chute and a rotating flange rotationally installed on the first aluminum conveying pipe, a graphite gasket is arranged between the two flanges, a lead screw extending outwards is fixedly installed in a flange hole of the fixed flange, an arc-shaped hole is formed in the rotating flange, and a rolling pressing piece and a nut are installed on the lead screw; the rotating mechanism is connected with the first aluminum conveying pipe and used for driving the first aluminum conveying pipe to rotate; and the controller is connected with the rotating mechanism. The technical problems that in the prior art, workers need to continuously make close contact with high-temperature molten aluminum to adjust the flow of the high-temperature molten aluminum, so that the labor intensity of the workers is high, and potential safety hazards exist are effectively solved.

Description

Technical Field

[0001] This utility model relates to the technical field of aluminum ingot casting equipment, and in particular to a flow control device. Background Technology

[0002] Aluminum ingot casting is a traditional process in which molten aluminum, flowing out of a mixing furnace, is transported via a common chute to various molds in a continuous aluminum ingot casting machine for casting. Currently, the flow rate of the molten aluminum during the transportation process is controlled by opening and closing a gate at the outlet of the aluminum ore mixing furnace. This control process is inconvenient and affects the normal formation of aluminum ingots.

[0003] To address the aforementioned issues, patent document CN214133953U discloses an aluminum liquid flow control device for an aluminum ingot casting machine. This device includes a mounting shell, a toggle block, and an auxiliary shell. The toggle block is rotatably mounted on the bottom of the mounting shell, and the auxiliary shell is rotatably mounted on the bottom of the toggle block. A material conveying pipe is installed inside the mounting shell, and a fixing rod is installed on the bottom of the inner wall of the material conveying pipe. An adjusting shell is installed on the opposite end of the fixing rod. A fastening plate is movably connected to the bottom of the adjusting shell, and a movable rod is installed on the upper end of the fastening plate. A spring is sleeved on the outer side of the movable rod. A connecting pipe is installed inside the toggle block. A discharge pipe is installed in the middle of the auxiliary shell. A heating wire is installed on the inner wall of the auxiliary shell, and a control panel is installed on one side of the auxiliary shell. An adjusting screen plate is installed on the inner wall of the material conveying pipe, and the control panel is electrically connected to the heating wire.

[0004] It can be seen that the above-mentioned aluminum liquid flow control device is to manually rotate the toggle block so that the input end of the connecting pipe is connected to the bottom end of different conveying pipes. The flow rate of the conveying pipe is controlled by adjusting the screen plate according to the different sizes inside the conveying pipe. This adjustment method requires the workers to be in close contact with the high temperature of the aluminum liquid, which is labor-intensive and poses a great safety hazard. Utility Model Content

[0005] This invention provides a flow control device to solve the technical problem in the prior art where workers need to be in close contact with high-temperature molten aluminum to adjust its flow rate, resulting in high labor intensity and safety hazards for workers.

[0006] To solve the above problems, the flow control device provided by this utility model adopts the following technical solution:

[0007] A flow control device, comprising:

[0008] The lifting mechanism is mounted on a bracket, and its output end is rotatably connected to the flow control channel;

[0009] The first common chute is fixedly installed at the furnace opening of the mixing furnace;

[0010] The first aluminum conveying pipe is rotatably connected to the first common chute via a flange assembly and is located at the end of the first common chute away from the furnace eye. The first aluminum conveying pipe includes a horizontal pipe connected to the first common chute and a vertical pipe connected to the right end of the horizontal pipe.

[0011] A flange assembly includes a fixed flange and a rotating flange. A graphite gasket is provided between the fixed flange and the rotating flange. The fixed flange is installed on the first common chute, and the rotating flange is installed on the first aluminum conveying pipe. An outwardly extending screw is fixedly installed in the flange hole of the fixed flange. An arc-shaped hole for inserting the screw is opened on the rotating flange. A rolling clamping element and a nut are sequentially installed on the end of the screw away from the fixed flange and the rotating flange.

[0012] A rotating mechanism, which is connected to the first aluminum conveying pipe, is used to drive the first aluminum conveying pipe to rotate;

[0013] A controller, which is connected to the rotating mechanism, is used to control the operating state of the rotating mechanism.

[0014] The beneficial effects of the flow control device provided by this utility model are as follows: By setting a first common chute at the furnace eye of the mixing furnace, the molten aluminum from the mixing furnace can be received and transported forward through an L-shaped first aluminum conveying pipe connected to it. The first aluminum conveying pipe and the first common chute are rotatably connected through a flange assembly and connected to a rotating mechanism. The rotating mechanism is connected to a controller, which can control the operation of the rotating mechanism to drive the first aluminum conveying pipe to rotate, thereby changing the angle between the vertical pipe and the horizontal plane. This easily changes the flow rate of the molten aluminum transported in the first aluminum conveying pipe. When casting is about to be completed, the first aluminum conveying pipe is driven to rotate, making the vertical pipe horizontal, so that all the molten aluminum in the first aluminum conveying pipe can flow out. This avoids the molten aluminum from solidifying in the first aluminum conveying pipe and the first common chute. There is no need to manually block the furnace eye or allow workers to come into close contact with the molten aluminum, thus ensuring worker safety.

[0015] Through the above-mentioned design, this utility model effectively solves the technical problem in the prior art that workers need to be in close contact with high-temperature molten aluminum to adjust its flow rate, resulting in high labor intensity and safety hazards for workers.

[0016] Furthermore, a flow control trough is provided on the side of the first aluminum conveying pipe away from the first common chute. The side of the flow control trough away from the first aluminum conveying pipe is connected to a second common chute extending to the continuous casting machine via a second aluminum conveying pipe. The second aluminum conveying pipe and the second common chute are rotatably connected by the flange assembly.

[0017] Furthermore, the flow control channel includes a first aluminum storage bin connected to the first common chute and a second aluminum storage bin connected to the second common chute. The first aluminum storage bin and the second aluminum storage bin are connected by a flow hole provided at their bottom ends.

[0018] Beneficial effects: By dividing the internal space of the flow control tank into two interconnected aluminum storage chambers, and opening a flow hole in each aluminum storage chamber, the opening height of the first flow hole used to connect the first common chute is higher than the opening height of the second flow hole used to connect the second common chute. This ensures that after the molten aluminum enters the flow control tank, it will only be discharged from the second flow hole after its liquid level is higher than the first flow hole. This allows sufficient time for the molten aluminum entering the first aluminum storage chamber to precipitate slag, effectively reducing the amount of slag entering the continuous casting machine.

[0019] Furthermore, the first aluminum storage bin and the second aluminum storage bin are respectively provided with a first flow hole and a second flow hole on their sides, so as to connect the first common chute and the second common chute respectively, and the opening height of the first flow hole is greater than the opening height of the second flow hole.

[0020] Furthermore, it also includes a lifting mechanism mounted on the bracket, which is signal-connected to the controller and its output is rotatably connected to the flow control channel to drive the flow control channel to rotate under the control of the controller.

[0021] Beneficial effects: By setting up a lifting mechanism and connecting it to a controller, a flow control trough is rotatably installed at the output end of the lifting mechanism. The controller controls the lifting mechanism to raise and lower, causing the flow control trough to rotate around the center line of the common chute. This changes the tilt angle of the flow control trough, thereby increasing the weight of the molten aluminum that can be contained within it. This allows the molten aluminum to be stored in the flow control trough when the flow rate is too high, and to be replenished into the second common chute when the flow rate is too low.

[0022] Furthermore, the output end of the lifting mechanism is rotatably connected to a tilting platform, and the flow control groove is fixedly installed on the tilting platform.

[0023] Furthermore, the tilting platform has an L-shaped structure, which includes a horizontal section and a vertical section that is connected to one end of the horizontal section and extends upward. The top end of the vertical section is connected to the output end. An L-shaped connecting rod is rotatably connected to the end of the horizontal section away from the vertical section. The end of the L-shaped connecting rod away from the horizontal section is rotatably connected to the support.

[0024] Furthermore, the aluminum inlet of the mixing furnace is equipped with a secondary furnace.

[0025] Furthermore, the controller is also connected to an aluminum ingot detector, which is installed on the continuous casting machine to monitor the volume of aluminum ingots on the continuous casting machine.

[0026] Furthermore, the lifting mechanism is a hydraulic cylinder or a pneumatic cylinder. Attached Figure Description

[0027] The above and other objects, features, and advantages of the present invention will become readily understood by reading the following detailed description of exemplary embodiments with reference to the accompanying drawings. In the drawings, several embodiments of the present invention are shown by way of example and not limitation, and like or corresponding reference numerals denote like or corresponding parts, wherein:

[0028] Figure 1 A schematic diagram illustrating the application structure of the flow control device provided by this utility model;

[0029] Figure 2 Schematic diagram of the flow control channel and lifting mechanism provided by this utility model Figure 1 ;

[0030] Figure 3 Schematic diagram of the flow control channel and lifting mechanism provided by this utility model Figure 2 ;

[0031] Figure 4 This is a side view of the flow control channel provided by this utility model;

[0032] Figure 5 This is a schematic diagram of the flange assembly provided by this utility model;

[0033] Figure 6 for Figure 5 Side view of the flange assembly shown;

[0034] Figure 7 This is a schematic diagram of the structure of the first aluminum conveying pipe and the first common chute provided by this utility model.

[0035] Explanation of reference numerals in the attached figures:

[0036] 1. First common chute; 2. Mixing furnace; 3. First aluminum conveying pipe; 4. Flange assembly; 5. Horizontal pipe; 6. Vertical pipe; 7. Fixed flange; 8. Rotating flange; 9. Graphite gasket; 10. Screw; 11. Arc-shaped hole; 12. Rolling clamping component; 13. Nut; 14. Flow control channel; 15. Second aluminum conveying pipe; 16. Second common chute; 17. Continuous casting machine; 18. First aluminum storage bin; 19. Second aluminum storage bin; 20. Flow hole; 21. Support; 22. Lifting mechanism; 23. Output end; 24. Horizontal section; 25. Vertical section; 26. L-shaped connecting rod; 27. Auxiliary furnace; 28. Slag removal robot; 29. ​​Transfer common chute; 30. Transfer aluminum conveying pipe. Detailed Implementation

[0037] The technical solutions of the present utility model will be clearly and completely described below with reference to the accompanying drawings of the embodiments. Those skilled in the art should understand that the embodiments described below are only some, not all, of the embodiments disclosed. All other embodiments obtained by those skilled in the art based on the embodiments of the present utility model without creative effort are within the scope of protection of the present utility model.

[0038] It should be noted that the main concept of the flow control device provided by this utility model is as follows: by setting an L-shaped first aluminum conveying pipe and a rotating mechanism connected to the first aluminum conveying pipe, and connecting the rotating mechanism to the controller, the controller can control the rotating mechanism to drive the first aluminum conveying pipe to rotate, thereby changing the angle between the vertical section and the horizontal plane in the first aluminum conveying pipe, and finally changing the flow rate of the aluminum liquid conveyed in the first aluminum conveying pipe.

[0039] After introducing the basic principles of this utility model, various non-limiting embodiments of this utility model are described in detail below. Any quantity of elements in the accompanying drawings is for illustrative purposes only and not for limitation, and any naming is for distinction only and has no limiting meaning.

[0040] The principles and spirit of this utility model will be explained in detail below with reference to several representative embodiments.

[0041] Example 1 of the flow control device provided by this utility model:

[0042] like Figures 1 to 7As shown, the flow control device includes a first common chute 1 fixedly installed at the furnace eye of the mixing furnace 2. The conveying end of the first common chute 1 is rotatably connected to the first aluminum conveying pipe 3 via a flange assembly 4. A flow control groove 14 is provided at the right end of the first aluminum conveying pipe 3. The right end of the flow control groove 14 is connected to a second common chute 16 extending to the continuous casting machine 17 via a second aluminum conveying pipe 15. The first aluminum conveying pipe 3 is connected to a rotating mechanism (not shown in the figure) for driving its rotation. The flow control groove 14 is rotatably connected to a lifting mechanism 22 for driving its rotation. Both the rotating mechanism and the lifting mechanism 22 are connected to the controller signal.

[0043] Regarding the first aluminum conveying pipe 3. The first aluminum conveying pipe 3 is an L-shaped pipe, which includes a horizontal pipe 5 connected to the first common chute 1, a vertical pipe 6 connected to the right end of the horizontal pipe 5, a transfer common chute 29 set below the vertical pipe 6, the left end of the transfer common chute 29 is sealed, and the right end is connected to the flow control chute 14.

[0044] Regarding the flow control channel 14: The flow control channel 14 includes a first aluminum storage bin 18 connected to the transfer common chute 29 and a second aluminum storage bin 19 connected to the second common chute 16. The first aluminum storage bin 18 and the second aluminum storage bin 19 are connected by a flow hole 20 opened at their bottom ends.

[0045] Specifically, the first aluminum storage bin 18 has a first flow hole on its side, and the first flow hole is connected to the transfer common chute 29 through the transfer aluminum conveying pipe 30; the second aluminum storage bin 19 has a second flow hole on its side, and the second flow hole is connected to the second common chute 16 through the second aluminum conveying pipe 15.

[0046] Specifically, the intermediate aluminum conveying pipe 30 is connected to the intermediate common chute 29 via flange assembly 4, and the second aluminum conveying pipe 15 is also connected to the second common chute 16 via flange assembly 4.

[0047] Specifically, the opening height of the first flow hole is greater than the opening height of the second flow hole.

[0048] Regarding flange assembly 4: Flange assembly 4 includes a fixed flange 7 and a rotating flange 8. A graphite gasket 9 is provided between the fixed flange 7 and the rotating flange 8. The fixed flange 7 is installed on the first common chute 1, the intermediate common chute 29, or the second common chute 16. The rotating flange 8 is installed on the first aluminum conveying pipe 3, the intermediate aluminum conveying pipe 30, or the second aluminum conveying pipe 15. An outwardly extending lead screw 10 is fixedly installed in the flange hole of the fixed flange 7. An arc-shaped hole 11 for the lead screw 10 is opened on the rotating flange 8. A rolling clamping member 12 and a nut 13 are installed sequentially from left to right on the right end of the lead screw 10. The rolling clamping member 12 is used to clamp the rotating flange 8, and the nut 13 is used to lock the rolling clamping member 12 to ensure that there is no aluminum leakage during the aluminum liquid conveying process and that the rotating flange 8 can rotate.

[0049] Specifically, the rolling clamping element 12 is a roller or a bearing.

[0050] Specifically, there are three arc-shaped holes 11, which are evenly distributed around the circumference of the rotating flange 8.

[0051] Regarding the lifting mechanism 22: The lifting mechanism 22 is mounted on the bracket 21 and connected to the controller (not shown in the figure) so that the lifting mechanism 22 can be raised and lowered by the controller. The output end 23 of the lifting mechanism 22 is rotatably connected to an L-shaped tilting platform. A flow control groove 14 is fixedly installed on the tilting platform. The lifting mechanism 22 is a hydraulic cylinder or a pneumatic cylinder.

[0052] Regarding the tilting platform: The tilting platform includes a horizontal section 24, one end of which is connected to an upwardly extending vertical section 25, and the other end is rotatably connected to an L-shaped connecting rod 26. The top end of the vertical section 25 is connected to the output end 23, and the end of the L-shaped connecting rod 26 facing away from the horizontal section 24 is rotatably mounted on a bracket 21.

[0053] In addition, a slag-removing robot 28 is installed on the side of the flow control channel 14 to remove aluminum slag from the flow control channel 14 in a timely manner.

[0054] It should be noted that the controller is a programmable logic controller (PLC), which is connected to the aluminum ingot detector installed on the continuous casting machine 17. When the aluminum ingot detector detects that the aluminum ingot on the continuous casting machine 17 is too large or too small, it transmits the signal of the aluminum ingot being too large or too small to the controller. The controller then controls the lifting mechanism 22 to rise and fall, thereby controlling the rotation of the flow control trough 14, and thus controlling the weight of the aluminum liquid stored in the flow control trough 14. The aluminum inlet of the first common chute 1 is connected to the mixing furnace 2. The aluminum inlet of the mixing furnace 2 is provided with an auxiliary furnace 27, so that the aluminum liquid passes through the auxiliary furnace 27 before entering the mixing furnace 2. This allows the aluminum liquid to complete the slag removal operation in the auxiliary furnace 27 before each addition of aluminum liquid to the mixing furnace 2, improving the quality of the aluminum liquid and providing good conditions for subsequent automatic slag removal.

[0055] In addition, it should be noted that an air duct (not shown in the figure) is installed at the top of the mixing furnace 2. The air duct is connected to a fan (not shown in the figure). The heat inside the mixing furnace 2 is dissipated through the air duct by the fan, which can provide a heat source for other operations of the enterprise and reduce energy consumption.

[0056] The working principle of the flow control device provided by this utility model is as follows:

[0057] Before entering the mixing furnace 2, the molten aluminum first enters the auxiliary furnace 27. During the process of the molten aluminum entering the auxiliary furnace 27, a refining agent is simultaneously added to the auxiliary furnace 27 to fully mix the refining agent with the molten aluminum to reduce the aluminum dross in the molten aluminum. After that, the dross removal operation is carried out to improve the quality of the molten aluminum.

[0058] Before the molten aluminum flows out of the mixing furnace 2, the controller controls the rotating mechanism to rotate, thereby driving the first aluminum conveying pipe 3 to rotate, thus controlling the flow rate of the molten aluminum in the first aluminum conveying pipe 3. The controller controls the output end 23 of the lifting mechanism 22 to extend, so that the flow control trough 14 rotates around the center of the first common chute 1 and the second common chute 16, so that the flow control trough 14 can store part of the molten aluminum. During the rotation of the flow control trough 14, the rotating flange 8 rotates with the first aluminum conveying pipe 3 or the second aluminum conveying pipe 15. The rolling clamping part 12 always maintains the clamping force on the fixed flange 7 during the rotation.

[0059] During the aluminum molten material transportation process, the aluminum molten material first flows out from the mixing furnace 2 to the first common chute 1, then enters the transfer common chute 29 through the first aluminum conveying pipe 3, and then enters the first aluminum storage bin 18 through the transfer common chute 29. The molten aluminum in the aluminum molten material will slowly settle in the first aluminum storage bin 18, while the aluminum slag in the aluminum molten material floats on the surface of the molten aluminum. After that, the molten aluminum enters the second aluminum storage bin 19 through the flow hole 20. When the liquid level of the molten aluminum in the first aluminum storage bin 18 is higher than the height of the second flow hole, the molten aluminum is transported from the second flow hole through the second aluminum conveying pipe 15 to the second common chute 16, and finally enters the mold on the continuous casting machine 17.

[0060] Meanwhile, the aluminum ingot detector monitors the size of the aluminum ingots on the continuous casting machine 17 in real time and transmits the detected signal to the controller. If the aluminum ingot is detected to be too large, the controller controls the lifting mechanism 22 to lift and lower so that the flow control tank 14 can rotate, so that the flow control tank 14 can store more molten aluminum. If the aluminum ingot is detected to be too small, the controller controls the lifting mechanism 22 to lift and lower so that the flow control tank 14 can rotate, so that the molten aluminum stored in the flow control tank 14 can be replenished into the second common chute 16 to ensure the flow rate of molten aluminum.

[0061] When the casting is about to be completed, the controller controls the rotating device to rotate, thereby driving the first aluminum conveying pipe 3 to rotate, so that the vertical section 25 of the first aluminum conveying pipe 3 is horizontal, so that all the aluminum liquid in the first aluminum conveying pipe 3 can flow out, thus avoiding the situation where the aluminum liquid solidifies in the first aluminum conveying pipe 3 and the first common chute 1.

[0062] Embodiment 2 of the flow control device provided by this utility model:

[0063] Its main difference from Example 1 is:

[0064] In Example 1, the transfer common chute is connected to the flow control chute.

[0065] In this embodiment, the end of the transfer common chute extends to the continuous casting machine.

[0066] Based on the above description in this specification, those skilled in the art will also understand that the following terms used, such as "upper," "lower," "front," "rear," "left," "right," "width," "horizontal," "top," "bottom," "inner," and "outer," are terms indicating orientation or positional relationships based on the orientation or positional relationships shown in the accompanying drawings of this specification. They are only for the purpose of facilitating the explanation of the present invention and simplifying the description, and do not explicitly or implicitly suggest that the device or element involved must have the specific orientation, or be constructed and operated in a specific orientation. Therefore, the above-mentioned orientation or positional relationship terms should not be understood or interpreted as limitations on the present invention.

[0067] In addition, in the description of this specification, "multiple" means at least two, such as two, three or more, etc., unless otherwise expressly and specifically defined.

Claims

1. A flow control device, characterized in that, include: The first common chute is fixedly installed at the furnace opening of the mixing furnace; The first aluminum conveying pipe is rotatably connected to the first common chute via a flange assembly and is located at the end of the first common chute away from the furnace eye. The first aluminum conveying pipe includes a horizontal pipe connected to the first common chute and a vertical pipe connected to the right end of the horizontal pipe. A flange assembly includes a fixed flange and a rotating flange. A graphite gasket is provided between the fixed flange and the rotating flange. The fixed flange is installed on the first common chute, and the rotating flange is installed on the first aluminum conveying pipe. An outwardly extending screw is fixedly installed in the flange hole of the fixed flange. An arc-shaped hole for inserting the screw is opened on the rotating flange. A rolling clamping element and a nut are sequentially installed on the end of the screw away from the fixed flange and the rotating flange. A rotating mechanism connected to the first aluminum conveying pipe for driving the first aluminum conveying pipe to rotate; a controller connected to the rotating mechanism for controlling the working state of the rotating mechanism.

2. The flow control device according to claim 1, characterized in that, A flow control trough is provided on the side of the first aluminum conveying pipe away from the first common chute. The side of the flow control trough away from the first aluminum conveying pipe is connected to a second common chute extending to the continuous casting machine via a second aluminum conveying pipe. The second aluminum conveying pipe and the second common chute are rotatably connected by the flange assembly.

3. The flow control device according to claim 2, characterized in that, The flow control channel includes a first aluminum storage bin connected to the first common chute and a second aluminum storage bin connected to the second common chute. The first aluminum storage bin and the second aluminum storage bin are connected by a flow hole provided at their bottom ends.

4. The flow control device according to claim 3, characterized in that, The first aluminum storage bin and the second aluminum storage bin are respectively provided with a first flow hole and a second flow hole on their sides, so as to connect the first common chute and the second common chute respectively. The opening height of the first flow hole is greater than the opening height of the second flow hole.

5. The flow control device according to any one of claims 2 to 4, characterized in that, It also includes a lifting mechanism mounted on a bracket, which is signal-connected to the controller and its output is rotatably connected to the flow control channel to drive the flow control channel to rotate under the control of the controller.

6. The flow control device according to claim 5, characterized in that, The output end of the lifting mechanism is rotatably connected to a tilting platform, and the flow control channel is fixedly installed on the tilting platform.

7. The flow control device according to claim 6, characterized in that, The tilting platform has an L-shaped structure, including a horizontal section and a vertical section that is connected to one end of the horizontal section and extends upward. The top end of the vertical section is connected to the output end. An L-shaped connecting rod is rotatably connected to the end of the horizontal section away from the vertical section. The end of the L-shaped connecting rod away from the horizontal section is rotatably connected to the support.

8. The flow control device according to any one of claims 1 to 4, characterized in that, The mixing furnace is equipped with an auxiliary furnace at its aluminum inlet.

9. The flow control device according to any one of claims 2 to 4, characterized in that, The controller is also connected to an aluminum ingot detector, which is installed on the continuous casting machine to monitor the volume of aluminum ingots on the continuous casting machine.

10. The flow control device according to claim 5, characterized in that, The lifting mechanism is a hydraulic cylinder or a pneumatic cylinder.

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