An automatic slag feeding device for crystallizer protective slag

Abstract

This utility model provides an automatic slag feeding device for crystallizer protective slag, belonging to the technical field of slag feeding devices. It includes: a fixed frame, a movable frame, a slag feeding component opening and closing mechanism, two slag feeding pipe assemblies, two bearing seats, a position compensation mechanism, a drive device, a feeding box, a feeding port adjustment assembly, and a displacement sensor. The movable frame is slidably connected to the fixed frame. The slag feeding component opening and closing mechanism is mounted on the movable frame and hinged to the two slag feeding components respectively. The two bearing seats are respectively located on both sides of the movable frame, and the two slag feeding pipe assemblies are rotatably connected to the two bearing seats respectively. This device, through the combined use of the slag feeding component opening and closing mechanism, the position compensation mechanism, the drive device, and the position sensor, enables real-time adjustment of the feeding pipe position when the crystallizer vibrates or shifts during the feeding process. This ensures that the feeding port is always aligned with the target area and that the size of the feeding port can be adjusted without replacing the entire set of feeding pipes.

Description

Technical Field

[0001] This utility model belongs to the technical field of slag feeding devices, specifically relating to an automatic slag feeding device for crystallizer protective slag. Background Technology

[0002] Currently, a patent application with application number 201520276205.2 proposes an automatic slag feeder for continuous casting large circular and elliptical crystallizers. The feeder controls the movement of the first end of the material distribution pipe along a circular or elliptical arc by the longitudinal movement of the longitudinal sliding plate and the lateral swing of the lateral swing device, thereby uniformly adding the protective slag to be added into the crystallizer. Since the storage tank and related longitudinal movement control devices move longitudinally with the longitudinal sliding plate, they do not occupy too much area in the lateral direction. As a result, multiple slag feeders can be used side by side, resulting in a compact structure.

[0003] However, in existing technologies, the trajectory of the feeding tube is fixed as an arc or ellipse. When the crystallizer vibrates or shifts, the protective slag discharged from the feeding tube is prone to falling outside the crystallizer. Furthermore, the size of the feeding orifice is fixed and cannot adapt to protective slags of different viscosities. When using high-viscosity protective slag, if the feeding orifice is small, the protective slag is prone to blockage at the feeding orifice. When using low-viscosity protective slag, if the feeding orifice is large, it is easy to cause the slag layer to be too thick, affecting the surface quality of the cast billet. In existing technologies, this problem is generally solved by replacing the entire feeding tube, which is complicated and inefficient. Utility Model Content

[0004] Based on the above-mentioned technical problems, the purpose of this utility model is to provide an automatic slag feeding device for crystallizer protective slag. This device uses a combination of a slag feeding component opening and closing mechanism, a position compensation mechanism, a driving device and a position sensor to adjust the position of the feeding pipe in real time when the crystallizer vibrates or shifts during the feeding process, ensuring that the feeding port is always aligned with the target area and that the size of the feeding port can be adjusted without replacing the entire set of feeding pipes.

[0005] The specific technical solution is as follows:

[0006] An automatic slag feeding device for crystallizer protective slag includes: a fixed frame, a movable frame, a slag feeding component opening and closing mechanism, two slag feeding and distribution pipe assemblies, two bearing seats, a position compensation mechanism, a drive device, a feeding box, a distribution port adjustment assembly, and displacement sensors; the movable frame is slidably connected to the fixed frame; the slag feeding component opening and closing mechanism is mounted on the movable frame and hinged to the two slag feeding and distribution pipe assemblies respectively; the two bearing seats are respectively located on both sides of the movable frame, and the two slag feeding and distribution pipe assemblies are rotatably connected to the two bearing seats respectively; the position compensation mechanism is mounted on the fixed frame and the movable frame; the drive device is located at the bottom of the movable frame, and the drive device simultaneously drives the slag feeding component opening and closing mechanism and the position compensation mechanism; the feeding box is fixed on the movable frame, and the two outlets of the feeding box are respectively connected to the inlets of the two slag feeding and distribution pipe assemblies; the distribution port adjustment assembly is located at the distribution port of the slag feeding and distribution pipe assembly; and the two displacement sensors are respectively mounted on the two slag feeding and distribution pipe assemblies.

[0007] In addition, the automatic slag feeding device for crystallizer protective slag provided by the present invention may also have the following additional technical features:

[0008] In the above technical solution, the slag-adding assembly opening and closing mechanism includes: two fixed seats, a first lead screw, an mounting block, a guide rail, a moving block, and two connecting rods; the two fixed seats are respectively fixed on the movable frame, and the two ends of the first lead screw are respectively rotatably connected to the two fixed seats; the mounting block is provided with a threaded hole, and the threaded hole is sleeved on the outside of the first lead screw; the guide rail is set on the movable frame, the moving block is connected to the mounting block, and the moving block is slidably connected to the guide rail; the two connecting rods are respectively hinged to the two ends of the mounting block.

[0009] In the above technical solution, the slag feeding and feeding pipe assembly includes: a fixed pipe, an extension pipe, a feeding motor, and a screw conveyor. The fixed pipe is provided with a feed inlet, is hinged to the connecting rod, and is rotatably connected to the bearing seat. The extension pipe is installed on one side of the fixed pipe and is provided with a feeding port, and a position sensor is set on one side of the feeding port. The screw conveyor is installed in both the fixed pipe and the extension pipe. The feeding motor is fixed on one side of the fixed pipe, and the output end of the feeding motor is connected to the screw conveyor.

[0010] The above technical solution also includes: two slide rails, at least two sliders, an adjusting screw, and an adjusting nut; the two slide rails are respectively set on both sides of the fixed frame, and the sliders are installed on the slide rails and slidably connected to the slide rails; the adjusting screw is set on the top of the sliders and passes through the movable frame; the adjusting nut is threadedly engaged with the adjusting screw, and the adjusting nut is respectively attached to the upper and lower surfaces of the movable frame.

[0011] In the above technical solution, the position compensation mechanism includes: a connecting seat, a lead screw seat, and a second lead screw; the connecting seat is located at the bottom of the movable frame; the lead screw seat is fixed on the fixed frame; the second lead screw is rotatably connected to the connecting seat, and the second lead screw is threadedly engaged with the lead screw seat; wherein, the thread direction of the second lead screw is the same as that of the first lead screw.

[0012] In the above technical solution, the driving device includes: a drive motor, a first sprocket, a second sprocket, and a chain; the drive motor is fixed on one side of the connecting seat, and the output end of the drive motor is connected to the second lead screw; the first sprocket and the second sprocket are respectively sleeved on the outside of the second lead screw and the first lead screw, and the chain is simultaneously engaged with the outside of the first sprocket and the second sprocket.

[0013] In the above technical solution, the fabric opening adjustment assembly includes: an adjustment part, an adjustment port, and a limiting screw; the adjustment part is sleeved on the outside of the extension tube, and the adjustment part is opposite to the fabric opening; the adjustment port is set on the adjustment part, and the adjustment port is provided with an internal thread; the limiting screw is threadedly engaged with the adjustment port.

[0014] The above technical solution also includes: a protective shell and two clearance grooves; the protective shell is fixed on the movable frame and covers the outside of the slag feeding component opening and closing mechanism; the two clearance grooves are respectively set on both sides and the front end of the protective shell, and the two connecting rods are embedded in the clearance grooves.

[0015] In the above technical solution, the feeding box includes: a box body, two feeding channels and two guiding parts. The box body is located on the top of the protective shell, and the bottom of the box body is provided with two discharge ports. The two feeding channels are respectively located on both sides of the box body, and the feeding channels are connected to the discharge ports. The two guiding parts are respectively located on both sides of the box body, and the guiding parts are opposite to the feeding channels.

[0016] The automatic slag feeding device for crystallizer protective slag of this utility model has the following advantages compared with the prior art:

[0017] 1. By synchronously controlling the opening and closing mechanism and the position compensation mechanism of the slag feeding component through the drive device, the slag feeding and distribution pipe component can automatically open or close while moving back and forth, forming a dynamic coverage trajectory of fan-shaped expansion. This can adapt to the needs of crystallizers with different cross-sectional sizes, ensuring that the protective slag is evenly distributed in the crystallizer. At the same time, when the displacement sensor detects that the position of the crystallizer has shifted, the design of the combined use of the drive device and the position compensation mechanism can adjust the position of the distribution pipe in real time to ensure that the distribution port is always aligned with the target area.

[0018] 2. The material feeding port adjustment component allows users to flexibly adjust the size of the material feeding port to adapt to the needs of crystallizers with different cross-sectional dimensions. This design eliminates the need to replace the entire slag feeding pipe assembly, enabling one machine to serve multiple purposes, reducing operational difficulty, and avoiding blockages or excessively thick slag layers caused by fixed openings when using protective slags of different viscosities. Attached Figure Description

[0019] Figure 1 This is a front view of an automatic slag feeding device for crystallizer protective slag according to the present invention;

[0020] Figure 2 This is a side view of an automatic slag feeding device for crystallizer protective slag according to the present invention;

[0021] Figure 3 This is a schematic diagram of the opening and closing mechanism of the slag feeding component of this utility model;

[0022] Figure 4 This is a side view of the slag-adding component opening and closing mechanism and the position compensation mechanism of this utility model;

[0023] Figure 5 This is a schematic diagram of the opening and closing mechanism and the position compensation mechanism of the slag feeding component of this utility model;

[0024] Figure 6 This is a top view of an automatic slag feeding device for crystallizer protective slag according to the present invention;

[0025] in, Figures 1 to 6 The correspondence between the reference numerals and component names in the attached drawings is as follows:

[0026] 10 Fixed frame, 11 Movable frame, 12 Bearing seat, 13 Housing, 14 Displacement sensor, 15 Material guide, 16 Discharge port, 17 Inlet port, 18 Material feeding port, 19 Fixed seat, 20 First lead screw, 21 Mounting block, 22 Guide rail, 23 Moving block, 24 Connecting rod, 25 Fixed tube, 26 Extension tube, 27 Feeding motor, 28 Spiral conveyor rod, 29 Slide rail, 30 Slider, 31 Adjusting screw, 32 Adjusting nut, 33 Connecting seat, 34 Lead screw seat, 35 Second lead screw, 36 Drive motor, 37 First sprocket, 38 Second sprocket, 39 Chain, 40 Adjusting part, 41 Adjusting port, 42 Limiting screw, 43 Protective shell, 44 Clearance groove, 45 Feeding channel. Detailed Implementation

[0027] The following are specific implementation cases and appendices. Figure 1-6 The present invention will be further described below, but the present invention is not limited to these embodiments.

[0028] An automatic slag feeding device for crystallizer protective slag, such as Figure 1-6As shown, the system includes: a fixed frame 10, a movable frame 11, a slag-adding assembly opening and closing mechanism, two slag-adding distribution pipe assemblies, two bearing seats 12, a position compensation mechanism, a drive device, a feeding box, a distribution port 18 adjustment assembly, and a displacement sensor 14; the movable frame 11 is slidably connected to the fixed frame 10; the slag-adding assembly opening and closing mechanism is mounted on the movable frame and hinged to the two slag-adding assemblies respectively; the two bearing seats 12 are respectively located on both sides of the movable frame 11, and the two slag-adding distribution pipe assemblies are rotatably connected to the two bearing seats 12 respectively; the position compensation mechanism is mounted on the fixed frame 10 and the movable frame 11; the drive device is located at the bottom of the movable frame 11, and the drive device simultaneously drives the slag-adding assembly opening and closing mechanism and the position compensation mechanism; the feeding box is fixed on the movable frame 11, and the two discharge ports 16 of the feeding box are respectively connected to the inlets 17 of the two slag-adding distribution pipe assemblies; the distribution port 18 adjustment assembly is located at the distribution port 18 of the slag-adding distribution pipe assembly; the two displacement sensors 14 are respectively mounted on the two slag-adding distribution pipe assemblies.

[0029] With the above structure, the protective slag enters the slag feeding and distribution pipe assembly through the feeding box and is discharged through the distribution port 18. The drive device simultaneously controls the operation of the position compensation mechanism and the slag feeding assembly opening and closing mechanism. As a result, the position compensation mechanism moves the movable frame 11 forward, while the slag feeding assembly opening and closing mechanism controls the two slag feeding and distribution pipe assemblies to open outward. When the position compensation mechanism moves the movable frame 11 backward, the slag feeding assembly opening and closing mechanism controls the two slag feeding and distribution pipe assemblies to close inward, thereby evenly spreading the protective slag in the crystallizer. Furthermore, the distribution port 18 adjustment assembly allows users to flexibly adjust the size of the distribution port 18 to adapt to the needs of crystallizers with different cross-sectional dimensions. This design eliminates the need to replace the entire slag feeding and distribution pipe assembly, enabling multi-purpose use of a single machine.

[0030] Specifically, the crystallizer will vibrate or shift during operation. The position of the crystallizer is monitored by the displacement sensor 14. When the crystallizer shifts out of the position of the material distribution port 18, the signal is transmitted to the control system. The control system transmits the signal to the drive device, so that the drive device controls the operation of the position compensation mechanism and the slag addition group opening and closing mechanism, thereby ensuring that the material distribution port 18 is always relative to the position of the crystallizer.

[0031] Specifically, the design of adjusting the size of the feeding orifice 18 can not only adapt to the needs of crystallizers with different cross-sectional dimensions, but also to the needs of protective slags with different viscosities. When using high-viscosity protective slags, such as protective slags for peritectic steel, the feeding orifice 18 is prone to clogging. Increasing the size of the feeding orifice 18 can improve the fluidity of the high-viscosity protective slag and avoid clogging. When using low-viscosity protective slags, such as protective slags for high-carbon steel, the amount of material fed can be reduced by decreasing the size of the feeding orifice 18, thereby preventing the slag layer from becoming too thick.

[0032] Specifically, the material distribution paths of the material distribution ports 18 of the two slag-adding material distribution pipe assemblies form a fan-shaped, dynamically expanding coverage trajectory.

[0033] Specifically, in this embodiment, the displacement sensor 14 used is a laser displacement sensor 14 of model IL-100 manufactured by Keyence.

[0034] Specifically, the discharge port 16 and the inlet port 17 are connected or disassembled quickly through a connecting plate and fasteners, and an adjustment valve is provided at the inlet port 17.

[0035] In embodiments of this utility model, such as Figure 1-6 As shown, the slag-adding assembly opening and closing mechanism includes: two fixed seats 19, a first lead screw 20, a mounting block 21, a guide rail 22, a moving block 23, and two connecting rods 24; the two fixed seats 19 are respectively fixed on the movable frame 11, and the two ends of the first lead screw 20 are respectively rotatably connected to the two fixed seats 19; the mounting block 21 is provided with a threaded hole, and the threaded hole is sleeved on the outside of the first lead screw 20; the guide rail 22 is set on the movable frame 11, the moving block 23 is connected to the mounting block 21, and the moving block 23 is slidably connected to the guide rail 22; the two connecting rods 24 are respectively hinged to the two ends of the mounting block 21.

[0036] By controlling the rotation of the first lead screw 20, the thread of the first lead screw 20 engages with the threaded hole of the mounting block 21, thereby causing the mounting block 21 to move along the first lead screw 20. When the mounting block 21 moves forward, the two connecting rods 24 move outward, thereby driving the two slag feeding and distribution pipe assemblies to open outward. When the first lead screw 20 reverses, the mounting block 21 moves backward, and the two connecting rods 24 move inward, causing the two slag feeding and distribution pipe assemblies to close inward.

[0037] In embodiments of this utility model, such as Figure 1-6 As shown, the slag feeding and feeding pipe assembly includes: a fixed pipe 25, an extension pipe 26, a feeding motor 27, and a screw conveyor 28. The fixed pipe 25 is provided with a feed inlet 17, and the fixed pipe 25 is hinged to the connecting rod 24 and rotatably connected to the bearing seat 12. The extension pipe 26 is installed on one side of the fixed pipe 25 and is provided with a feeding port 18. The screw conveyor 28 is installed in both the fixed pipe 25 and the extension pipe 26. The feeding motor 27 is fixed on one side of the fixed pipe 25, and the output end of the feeding motor 27 is connected to the screw conveyor 28.

[0038] By using a connecting plate and fasteners to fix the fixed pipe 25 and the extension pipe 26, the length of the material distribution pipe is extended so as to be suitable for screw conveyor rods 28 of different lengths. The screw conveyor rod 28 is rotated by the operation of the feeding motor 27, thereby stably outputting the protective slag falling into the feed port 17 to the material distribution port 18 for discharge.

[0039] In embodiments of this utility model, such as Figure 1-6 As shown, it also includes: two slide rails 29, at least two sliders 30, an adjusting screw 31, and an adjusting nut 32; the two slide rails 29 are respectively arranged on both sides of the fixed frame 10, and the sliders 30 are mounted on the slide rails 29 and slidably connected to the slide rails 29; the adjusting screw 31 is arranged on the top of the sliders 30, and the adjusting screw 31 passes through the movable frame 11; the adjusting nut 32 is threadedly engaged with the adjusting screw 31, and the adjusting nut 32 is respectively attached to the upper and lower surfaces of the movable frame 11.

[0040] By mounting the movable frame 11 on the adjusting screw 31 and fixing the position of the movable frame 11 with the adjusting nut 32, and using the slider 30 in conjunction with the slide rail 29, the sliding connection between the movable frame 11 and the fixed frame 10 is achieved.

[0041] Specifically, the height of the movable frame 11 can be finely adjusted by fixing the position of the movable frame 11 by adjusting the screw 31 and the adjusting nut 32.

[0042] In embodiments of this utility model, such as Figure 2-5 As shown, the position compensation mechanism includes: a connecting seat 33, a lead screw seat 34, and a second lead screw 35; the connecting seat 33 is disposed at the bottom of the movable frame 11; the lead screw seat 34 is fixed on the fixed frame 10; the second lead screw 35 is rotatably connected to the connecting seat 33, and the second lead screw 35 is threadedly engaged with the lead screw seat 34; wherein, the thread direction of the second lead screw 35 is the same as that of the first lead screw 20.

[0043] By fixing the lead screw 34 to the fixed frame 10, when the drive device controls the second lead screw 35 to rotate, the second lead screw 35 moves back and forth along the lead screw 34. When the second lead screw 35 moves back and forth, it drives the movable frame 11 and the parts installed on the movable frame 11 to move. Through the cooperation between the slide rail 29 and the slider 30, the movement of the movable frame 11 is guided.

[0044] Specifically, by setting the thread direction of the second lead screw 35 and the first lead screw 20 to be the same, when the drive device controls the first lead screw 20 and the second lead screw 35 to rotate, the second lead screw 35 moves forward along the lead screw nut seat 34, thereby driving the movable frame 11 to move forward. At the same time, since the first lead screw 20 is fixed, the fixed seat 19 moves forward along the first lead screw 20, causing the two slag feeding pipe assemblies to open outward. Thus, the technical effect of the two slag feeding pipe assemblies opening when the movable frame 11 moves forward and closing when the movable frame 11 moves backward is achieved.

[0045] In embodiments of this utility model, such as Figure 2-6As shown, the drive device includes: a drive motor 36, a first sprocket 37, a second sprocket 38, and a chain 39; the drive motor 36 is fixed on one side of the connecting seat 33, and the output end of the drive motor 36 is connected to the second lead screw 35; the first sprocket 37 and the second sprocket 38 are respectively sleeved on the outside of the second lead screw 35 and the first lead screw 20, and the chain 39 is simultaneously engaged with the outside of the first sprocket 37 and the second sprocket 38.

[0046] The operation of the drive motor 36 drives the second lead screw 35 to rotate, and the rotation of the second lead screw 35 drives the first sprocket 37 to rotate, thereby causing the chain 39 to drive along the first sprocket 37 and the second sprocket 38, transmitting power to the first lead screw 20, thus achieving the purpose of the drive motor 36 driving the first lead screw 20 and the second lead screw 35 to rotate simultaneously.

[0047] Specifically, the rotational speed ratio of the second lead screw 35 to the first lead screw 20 is 1:1.25.

[0048] In embodiments of this utility model, such as Figure 1-6 As shown, the fabric opening 18 adjustment assembly includes: an adjustment part 40, an adjustment port 41, and a limiting screw 42. The adjustment part 40 is sleeved on the outside of the extension tube 26, and the adjustment part 40 is opposite to the fabric opening 18. The adjustment port 41 is provided on the adjustment part 40, and the adjustment port 41 is provided with an internal thread. The limiting screw 42 is threadedly engaged with the adjustment port 41.

[0049] By moving the adjusting part 40 at the position of the feeding port 18, the size of the feeding port 18 is adjusted, and the position of the adjusting part 40 is fixed by the limiting screw 42, so as to quickly position the adjusting part 40. With this structural design, multiple uses can be achieved without replacing the entire feeding tube, reducing the difficulty of operation, and avoiding the phenomenon of clogging or excessive slag layer when using protective slag of different viscosities due to the fixed opening.

[0050] In embodiments of this utility model, such as Figure 1-6 As shown, it also includes: a protective shell 43 and two clearance grooves 44; the protective shell 43 is fixed on the movable frame 11 and covers the outside of the slag addition assembly opening and closing mechanism; the two clearance grooves 44 are respectively provided on both sides and the front end of the protective shell 43, and the two connecting rods 24 are embedded in the clearance grooves 44.

[0051] The protective shell 43 protects the components and prevents foreign objects from falling onto them during operation, which could affect the normal operation of the equipment. In addition, the clearance groove 44 allows the connecting rod 24 to move freely, preventing interference between the connecting rod 24 and the protective shell, thereby improving the flexibility of equipment operation.

[0052] In embodiments of this utility model, such as Figure 1-6 As shown, the feeding box includes: a box body 13, two feeding channels 45 and two guiding parts 15. The box body 13 is located on the top of the protective shell 43, and the bottom of the box body 13 is provided with two discharge ports 16. The two feeding channels 45 are respectively located on both sides of the box body 13, and the feeding channels 45 are connected to the discharge ports 16. The two guiding parts 15 are respectively located on both sides of the box body 13, and the guiding parts 15 are opposite to the feeding channels 45.

[0053] By setting two feeding channels 45, the protective slag can move through the two feeding channels 45 to the two discharge ports 16 and enter the feeding ports 17 on the two fixed pipes 25, thereby ensuring that the protective slag can enter the two fixed pipes 25 at the same time, so that the two material distribution ports 18 can distribute the material at the same time; and the guide part 15 guides the protective slag, so that the protective slag can smoothly enter the feeding channel 45.

[0054] Implementation process: By moving the adjusting part 40 at the position of the feeding port 18, the size of the feeding port 18 is adjusted, and the position of the adjusting part 40 is fixed by the limiting screw 42 to quickly position the adjusting part 40; after adjusting the size of the feeding port 18, the protective slag is continuously fed into the feeding box and enters the two feeding ports 17 respectively. The drive motor 36 simultaneously drives the first lead screw 20 and the second lead screw 35 to rotate, so that the second lead screw 35 drives the movable frame 11 to move forward as a whole, while the mounting block 21 moves forward along the first lead screw 20, thereby controlling the two slag feeding and feeding pipe assemblies to open outward. When the drive motor 36 controls the first lead screw 20 and the second lead screw 35 to rotate, the second lead screw 35 drives the movable frame 11 to move forward as a whole, while the mounting block 21 moves forward along the first lead screw 20, thereby controlling the two slag feeding and feeding pipe assemblies to open outward. When lever 35 reverses, the second lead screw 35 drives the movable frame 11 to move backward as a whole, while the mounting block 21 moves backward along the first lead screw 20, controlling the two slag feeding pipe assemblies to close inward, so that the feeding port 18 evenly spreads the protective slag in the crystallizer; the crystallizer will vibrate or shift during operation. The position of the crystallizer is monitored by the displacement sensor 14. When the crystallizer shifts out of the feeding position of the feeding port 18, the signal is transmitted to the control system. The control system transmits the signal to the drive device, so that the drive motor 36 controls the operation of the first lead screw 20 and the second lead screw 35, thereby ensuring that the feeding port 18 is always relative to the position of the crystallizer.

[0055] In the description of this utility model, the term "multiple" refers to two or more. Unless otherwise explicitly defined, the terms "upper," "lower," etc., indicate the orientation or positional relationship based on the orientation or positional relationship shown in the accompanying drawings, and are only for the convenience of describing this utility model and simplifying the description, and do not indicate or imply that the device or element referred to must have a specific orientation, or be constructed and operated in a specific orientation, and therefore should not be construed as a limitation of this utility model. The terms "connection," "installation," "fixing," etc., should be interpreted broadly. For example, "connection" can be a fixed connection, a detachable connection, or an integral connection; it can be a direct connection or an indirect connection through an intermediate medium. For those skilled in the art, the specific meaning of the above terms in this utility model can be understood according to the specific circumstances.

[0056] In the description of this utility model, the terms "one embodiment," "some embodiments," "specific embodiment," etc., refer to a specific feature, structure, material, or characteristic described in connection with that embodiment or example, which is included in at least one embodiment or example of this utility model. In this utility model, the illustrative expressions of the above terms do not necessarily refer to the same embodiment or example. Furthermore, the specific features, structures, materials, or characteristics described may be combined in any suitable manner in one or more embodiments or examples.

[0057] The above description is merely a preferred embodiment of this utility model and is not intended to limit the utility model. Various modifications and variations can be made to this utility model by those skilled in the art. Any modifications, equivalent substitutions, improvements, etc., made within the spirit and principles of this utility model should be included within the protection scope of this utility model.

Claims

1. An automatic slag feeding device for crystallizer protective slag, characterized in that, include: The system comprises a fixed frame, a movable frame, a slag-adding assembly opening and closing mechanism, two slag-adding and distributing pipe assemblies, two bearing seats, a position compensation mechanism, a drive device, a feeding box, a distributing port adjustment assembly, and displacement sensors. The movable frame is slidably connected to the fixed frame. The slag-adding assembly opening and closing mechanism is mounted on the movable frame and hinged to each of the two slag-adding and distributing pipe assemblies. The two bearing seats are respectively located on both sides of the movable frame, and the two slag-adding and distributing pipe assemblies are rotatably connected to each of the two bearing seats. The position compensation mechanism is mounted on both the fixed frame and the movable frame. The drive device is located at the bottom of the movable frame and simultaneously drives both the slag-adding assembly opening and closing mechanism and the position compensation mechanism. The feeding box is fixed to the movable frame, and its two outlets are respectively connected to the inlets of the two slag-adding and distributing pipe assemblies. The distributing port adjustment assembly is located at the distributing port of the slag-adding and distributing pipe assembly. The two displacement sensors are respectively mounted on the two slag-adding and distributing pipe assemblies.

2. The automatic slag feeding device for crystallizer protective slag according to claim 1, characterized in that, The slag-adding assembly opening and closing mechanism includes: two fixed seats, a first lead screw, a mounting block, a guide rail, a moving block, and two connecting rods; the two fixed seats are respectively fixed on the movable frame, and the two ends of the first lead screw are respectively rotatably connected to the two fixed seats; the mounting block has a threaded hole, and the threaded hole is sleeved on the outside of the first lead screw; the guide rail is disposed on the movable frame, the moving block is connected to the mounting block, and the moving block is slidably connected to the guide rail; the two connecting rods are respectively hinged to the two ends of the mounting block.

3. The automatic slag feeding device for crystallizer protective slag according to claim 2, characterized in that, The slag feeding and distributing pipe assembly includes: a fixed pipe, an extension pipe, a feeding motor, and a screw conveyor. The fixed pipe has a feed inlet, is hinged to the connecting rod, and is rotatably connected to the bearing seat. The extension pipe is installed on one side of the fixed pipe and has a distributing port, with a position sensor located on one side of the distributing port. The screw conveyor is installed inside both the fixed pipe and the extension pipe. The feeding motor is fixed to one side of the fixed pipe, and its output end is connected to the screw conveyor.

4. The automatic slag feeding device for crystallizer protective slag according to claim 3, characterized in that, Also includes: The device comprises two slide rails, at least two sliders, an adjusting screw, and an adjusting nut; the two slide rails are respectively disposed on both sides of the fixed frame, and the sliders are mounted on the slide rails and slidably connected to the slide rails; the adjusting screw is disposed on the top of the sliders and passes through the movable frame; the adjusting nut is threadedly engaged with the adjusting screw and is respectively attached to the upper and lower surfaces of the movable frame.

5. The automatic slag feeding device for crystallizer protective slag according to claim 4, characterized in that, The position compensation mechanism includes: a connecting seat, a lead screw seat, and a second lead screw; the connecting seat is disposed at the bottom of the movable frame; the lead screw seat is fixed on the fixed frame; the second lead screw is rotatably connected to the connecting seat, and the second lead screw is threadedly engaged with the lead screw seat; wherein, the thread direction of the second lead screw is the same as that of the first lead screw.

6. The automatic slag feeding device for crystallizer protective slag according to claim 5, characterized in that, The driving device includes: a drive motor, a first sprocket, a second sprocket, and a chain; the drive motor is fixed to one side of the connecting seat, and the output end of the drive motor is connected to the second lead screw; the first sprocket and the second sprocket are respectively sleeved on the outside of the second lead screw and the first lead screw, and the chain is simultaneously engaged with the outside of the first sprocket and the second sprocket.

7. The automatic slag feeding device for crystallizer protective slag according to claim 3, characterized in that, The fabric opening adjustment assembly includes: an adjustment part, an adjustment port, and a limiting screw. The adjustment part is sleeved on the outside of the extension tube, and the adjustment part is opposite to the fabric opening. The adjustment port is disposed on the adjustment part, and the adjustment port is provided with an internal thread. The limiting screw is threadedly engaged with the adjustment port.

8. The automatic slag feeding device for crystallizer protective slag according to claim 2, characterized in that, Also includes: The protective shell and two clearance slots are provided; the protective shell is fixed on the movable frame and covers the outside of the slag feeding assembly opening and closing mechanism; the two clearance slots are respectively provided on both sides and the front end of the protective shell, and the two connecting rods are embedded in the clearance slots.

9. An automatic slag feeding device for crystallizer protective slag according to claim 8, characterized in that, The feeding box includes: a box body, two feeding channels and two guiding parts. The box body is located on the top of the protective shell, and the bottom of the box body is provided with two discharge ports. The two feeding channels are respectively located on both sides of the box body, and the feeding channels are connected to the discharge ports. The two guiding parts are respectively located on both sides of the box body, and the guiding parts are opposite to the feeding channels.

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