A high-temperature metal silicon unloading device

Abstract

The present invention relates to a high-temperature metallic silicon unloading device, which includes a forming groove, a hanging block, and a lifting module. The cross-section of the forming groove is in an inverted trapezoid shape, and the hanging block is in a frustum of a cone shape. The hanging block is located at the center of the forming groove, and a hanging ear is provided at the top of the hanging block. The lifting module includes a lifting box and a slide rail. The lifting box is installed on the slide rail, and a motor, a first guide wheel, a second guide wheel, a driving wheel, and a transmission wheel are arranged inside the lifting box. A lifting rope sequentially bypasses the bottom of the second guide wheel and the top of the first guide wheel, and a hook fixing block is fixed at the end of the lifting rope. A hook is fixed at the lower end of the hook fixing block, and the transmission wheel is located below the first guide wheel. The high-temperature metallic silicon unloading device is more convenient and safe for unloading, avoids the contact between metallic silicon and the steel pot, thereby obtaining high-quality metallic silicon products. It avoids the reaction between the high-temperature metallic silicon solution and the steel, reduces the mass of the hanging block while enabling its reuse, and improves the service life of the forming groove.

Description

Technical Field

[0001] The present invention relates to the technical field of metal silicon processing technology, and particularly relates to a high-temperature metal silicon unloading device. Background Art

[0002] "Metallurgical silicon" is also known as crystalline silicon or industrial silicon, and its main use is as an additive for non-ferrous alloys. Metallurgical silicon is a product smelted from quartz and coke in an electric furnace. The content of the main component silicon element is about 98% (in recent years, those with a Si content of 99.99% are also included in metallurgical silicon), and the remaining impurities are iron, aluminum, calcium, etc. The lower the impurities, the higher its market price.

[0003] The existing metal silicon forming groove is a cylindrical cast steel pot forming groove, which is relatively heavy, about eight tons. When the smelted liquid metal silicon is discharged into the steel pot and cooled and formed, the steel pot is flipped 180 degrees to pour out. This process is cumbersome to operate and causes great damage to the ground. The steel pot is prone to cracking due to rapid cooling and heating and has a short service life. In addition, there is a small amount of iron element on the contact surface between the metal silicon and the steel pot, resulting in a decline in the quality of the metal silicon. Moreover, during the lifting process, the lifting rope lacks stability and is prone to lateral swing, which affects both the lifting landing point and safety, and there are certain potential safety hazards.

[0004] Therefore, a high-temperature metal silicon unloading device is needed to solve the above technical problems. Summary of the Invention

[0005] The present invention provides a circular tube clamping and quick-change jaw structure for the technical problems existing in the prior art.

[0006] The technical solution of the present invention to solve the above technical problems is as follows: A high-temperature metal silicon unloading device includes a forming groove, a lifting block, and a lifting module. The cross-section of the forming groove is trapezoidal in reverse. A graphite lining layer is provided inside the forming groove. The lifting block is frustum-shaped and is located at the center of the forming groove. A lifting ear is provided at the top of the lifting block. The lifting module includes a lifting box and a slide rail. The lifting box is located above the forming groove and is installed on the slide rail. A motor, a first guide wheel, a second guide wheel, a driving wheel, and a transmission wheel are provided inside the lifting box. The driving wheel is powered by the motor. A lifting rope is wound around the driving wheel. The lifting rope sequentially bypasses the bottom of the second guide wheel and the top of the first guide wheel. A hook fixing block is fixed at the end of the lifting rope. A hook is fixed at the lower end of the hook fixing block. The transmission wheel is located below the first guide wheel. First brackets are installed at both ends of the first guide wheel. Second brackets are installed at both ends of the transmission wheel. A spring strut is installed between the first bracket and the second bracket. A wheel speed sensor is installed on the second bracket.

[0007] Preferably, in the above-mentioned quick-change jaw structure for clamping round tubes, three rotating shafts are rotatably connected to the bottom of the lifting box. Fixed wheels are fixed in the middle of the three rotating shafts, and helical gears are installed at both ends of the three rotating shafts. Every two adjacent helical gears mesh with each other. One telescopic rod is fixedly connected to each of the fixed wheels, and the lower end of the telescopic rod is hinged to the side surface of the hook fixed block.

[0008] Preferably, in the above-mentioned quick-change jaw structure for clamping round tubes, the lifting rope located outside the lifting box is perpendicular to the plane formed by the three rotating shafts.

[0009] Preferably, in the above-mentioned quick-change jaw structure for clamping round tubes, the angle between any two rotating shafts is 60 degrees.

[0010] Preferably, in the above-mentioned quick-change jaw structure for clamping round tubes, the central axis of the hanging block is perpendicular to the bottom surface of the forming groove.

[0011] Preferably, in the above-mentioned quick-change jaw structure for clamping round tubes, the driving wheel is rotatably connected to the second bracket.

[0012] Preferably, in the above-mentioned quick-change jaw structure for clamping round tubes, abrasive particles are provided on the outer sides of the guiding wheel and the driving wheel.

[0013] Preferably, in the above-mentioned quick-change jaw structure for clamping round tubes, the hanging block includes a graphite block with a frustum shape on the outside. A steel column penetrates through the inside of the graphite block. A circular steel plate is perpendicularly welded to the top of the steel column, and the hanging ear is welded to the steel plate. A cylindrical cavity is provided at the bottom of the graphite block. A circular bottom baffle is perpendicularly welded to the bottom of the steel column. A bottom graphite sealing block is embedded in the cylindrical cavity, and the bottom graphite sealing block is threadedly connected to the inner wall of the cylindrical cavity.

[0014] The beneficial effects of the present invention are as follows: By setting the inner cavity of the forming groove to an inverted frustum shape, while increasing the internal capacity, it is also convenient for the lifting and discharging of metallurgical grade silicon. By pre-placing a frustum-shaped hanging block in the forming groove and lifting the hanging block after pouring and forming the metallurgical grade silicon, the formed metallurgical grade silicon can be lifted together, avoiding the operations of lifting and inverting the forming groove, and making the discharging more convenient. By setting the first guiding wheel, spring strut, driving wheel, and second bracket in the lifting box, it is ensured that the motor can stop immediately when the lifting rope swings during the lifting process. At the same time, the design of the telescopic rod, fixed wheel, rotating shaft, and helical gear also ensures the safety during lifting. By setting a graphite lining layer inside the forming groove and embedding a steel column inside the graphite block, it can prevent the reaction between the high-temperature metallurgical grade silicon solution and the steel, reduce the mass of the hanging block while enabling it to be reused, and improve the service life of the forming groove. It overcomes the operation of directly pouring the melted metallurgical grade silicon into a steel pot in the traditional process, avoids the contact between the metallurgical grade silicon and the steel pot, and thus obtains high-quality metallurgical grade silicon products. BRIEF DESCRIPTION OF THE DRAWINGS

[0015] Figure 1 is a schematic diagram of the overall structure of the present invention;

[0016] Figure 2 is the installation structure of each guide wheel and driving wheel in the lifting box;

[0017] Figure 3 is a side view of the first guide wheel and the driving wheel;

[0018] Figure 4 is a top view of the connection structure of the fixed wheel, the rotating shaft and the helical gear;

[0019] Figure 5 is a schematic diagram of the internal structure of the lifting block.

[0020] In the drawings, the list of components represented by each reference numeral is as follows:

[0021] 1. Slide rail, 2. Lifting box, 3. Telescopic rod, 4. Lifting rope, 5. Hook fixing block, 6. Hook, 7. Forming groove, 8. Lifting block, 81. Steel column, 82. Graphite block, 83. Bottom baffle, 84. Bottom graphite seal block, 85. Cylindrical cavity, 86. Steel plate, 9. Metallurgical grade silicon, 10. Fixed wheel, 11. Rotating shaft, 12. Helical gear, 13. Lifting lug, 14. First guide wheel, 15. Second guide wheel, 16. Driving wheel, 17. Spring strut, 18. First bracket, 19. Second bracket, 20. Driving wheel, 21. Wheel speed sensor, 22. Graphite lining. DETAILED DESCRIPTION OF THE INVENTION

[0022] The principles and features of the present invention will be described below with reference to the accompanying drawings. The examples given are only for explaining the present invention and are not intended to limit the scope of the present invention.

[0023] As Figure 1 - Figure 5 shown, a high-temperature metallurgical grade silicon unloading device includes a forming groove 7, a lifting block 8, and a lifting module.

[0024] The hanging block 8 includes a graphite block 82 with a frustum shape on the outside. A steel column 81 penetrates through the inside of the graphite block 82, and the axis of the steel column 81 coincides with the central axis of the graphite block 82. A circular steel plate 86 is vertically welded to the top of the steel column 81, and the steel plate 86 fits against the top of the graphite block 82. A cylindrical cavity 85 is provided at the bottom of the graphite block 82. A circular bottom baffle 83 is vertically welded to the bottom of the steel column 81, and the bottom baffle 83 fits against the inner top wall of the cylindrical cavity 85. A bottom graphite sealing block 84 is embedded inside the cylindrical cavity 85. External threads are provided on the outside of the graphite sealing block 84, and internal threads are provided on the inner side wall of the cylindrical cavity 85. The bottom graphite sealing block 84 is threadedly connected to the inner wall of the cylindrical cavity 85, thereby sealing the bottom baffle 83 and the steel column 81 inside the inner layer to prevent contact with liquid metal silicon.

[0025] The inside of the forming groove 7 is an inverted frustum-shaped cavity. The material of the forming groove 7 is steel, and its cross-section is an inverted trapezoid. A graphite lining layer 22 is provided inside the forming groove 7. The graphite material can prevent the high-temperature metal silicon from reacting with the forming groove 7. The forming groove 7 is used to hold the molten metal silicon 9. The hanging block 8 is also frustum-shaped. The hanging block 8 is placed at the center of the forming groove 7, and the central axis of the hanging block 8 is perpendicular to the bottom surface of the forming groove 7. The melted metal silicon solution is poured into the forming groove 7. After the solution cools and solidifies, it is lifted by the lifting module. A lifting ear 13 is provided at the top of the hanging block 8. The lifting ear 13 is welded to the steel plate 86. When lifting, the hook 6 is hung on the lifting ear 13, and the hanging block 8 is lifted upward, thereby lifting the formed metal silicon together. Since the cross-sectional area of the hanging block 8 increases sequentially from top to bottom, the inclined structure on its side can provide an upward pulling force for the metal silicon, so the metal silicon can be pulled up simultaneously when lifting.

[0026] By providing a graphite lining layer 22 inside the forming groove 7 and embedding a steel column 81 inside the graphite block 82, the high-temperature metal silicon solution can be prevented from reacting with the steel.

[0027] The lifting module includes a lifting box 2 and a slide rail 1. The lifting box 2 is located above the forming groove 7, and the lifting box 2 is installed on the slide rail 1. The lifting box 2 can be driven by a lateral displacement module to move the lifting box 2 along the slide rail 1. A motor, a first guide wheel 14, a second guide wheel 15, a driving wheel 16, and a transmission wheel 20 are provided inside the lifting box 2. The output shaft of the motor outputs power to the driving wheel 16 through a speed-changing gear, thereby providing rotational power for the driving wheel 16. One end of the lifting rope 4 is fixedly connected to the outside of the driving wheel 16. When the driving wheel 16 rotates, the lifting rope 4 is wound around the driving wheel 16, thereby providing a lifting pulling force for the lifting rope 4. The lifting rope 4 successively bypasses the bottom of the second guide wheel 15 and the top of the first guide wheel 14, and hangs down and extends outside the lifting box 2. A hook fixing block 5 is fixed to the end of the lifting rope 4, and a hook 6 is fixed to the lower end of the hook fixing block 5.

[0028] The driving wheel 20 is located below the first guide wheel 14. The two ends of the first guide wheel 14 are provided with first brackets 18, and the first guide wheel 14 is rotatably mounted on the first brackets 18. The two ends of the driving wheel 20 are provided with second brackets 19, and the driving wheel 20 is rotatably mounted on the second brackets 19. A spring strut 17 is installed between the first bracket 18 and the second bracket 19. When the hanging block 8 is lifted, the pulling force of the lifting rope 4 presses down the first guide wheel 14, and the spring strut 17 retracts. After the hanging block 8 is completely lifted, the first guide wheel 14 is in pressure contact with the driving wheel 20. During the lifting process, the lifting rope 4 drives the first guide wheel 14 to rotate, and the first guide wheel 14 drives the driving wheel 20 to rotate. During this process, if the lifting rope 4 does not swing, the driving wheel 20 rotates normally. If the lifting rope 4 swings, the downward pressure of the lifting rope 4 on the first guide wheel 14 decreases. At this time, the elastic force of the spring strut 17 causes the first guide wheel 14 to disengage from the driving wheel 20, and the driving wheel 20 stops rotating. A wheel speed sensor 21 is installed on the second bracket 19. The wheel speed sensor 21 is used to monitor whether the driving wheel 20 rotates. If it is detected that the driving wheel 20 does not rotate during the lifting process, it means that the lifting rope 4 has swung. At this time, the wheel speed sensor 21 transmits the received signal to the processor, and the processor sends a signal to stop the motor from rotating.

[0029] Further, to ensure greater safety and stability during the lifting process, three rotating shafts 11 are rotatably connected to the bottom of the lifting box 2. The included angle between any two of the three rotating shafts 11 is 60 degrees, thus forming an equilateral triangle shape. The lifting rope 4 passes through the centroid of this equilateral triangle, and the lifting rope 4 is perpendicular to the plane formed by the three rotating shafts 11. Fixed wheels 10 are fixed in the middle of the three rotating shafts 11, and a telescopic rod 3 is fixedly connected to each fixed wheel 10. The lower end of the telescopic rod 3 is hinged to the side surface of the hook fixing block 5. When the rotating shaft 11 rotates, it drives the fixed wheel 10 and the telescopic rod 3 to rotate together. Bevel gears 12 are installed at both ends of the three rotating shafts 11, and every two adjacent bevel gears 12 are engaged. Therefore, when one of the rotating shafts 11 rotates, the other two rotating shafts 11 rotate synchronously.

[0030] When lifting, the hook 6 is hung on the lifting lug 13, and the formed metallurgical silicon is lifted together by lifting the hanging block 8 upward. During the lifting process, since the three rotating shafts 11 rotate synchronously and have the same angular velocity, the swing angles of the three telescopic rods 3 are the same, so as to keep the hook 6 from deflecting horizontally. During the rising process of the hook 6, the three telescopic rods 3 shorten synchronously and always maintain the same length, thus ensuring the stability during lifting. After lifting, the lifting box 2 moves along the slide rail 1 to the position of the vibrating disk, and then the hanging block 8 is lowered.

[0031] In the description of the present invention, it should be understood that the terms "upper", "lower", "left", "right", etc. indicating the orientation or positional relationship are based on the orientation or positional relationship shown in the drawings, and are only for the convenience of describing the present invention and simplifying the description, rather than indicating or implying that the device or element referred to must have a specific orientation, as well as a specific orientation structure and operation. Therefore, it should not be construed as a limitation of the present invention. In addition, "first" and "second" are only used for descriptive purposes, and cannot be understood as indicating or implying relative importance or implicitly indicating the quantity of the indicated technical features. Therefore, the features defined with "first" and "second" may explicitly or implicitly include one or more of such features. In the description of the present invention, unless otherwise specified, the meaning of "a plurality" is two or more.

[0032] In the description of the present invention, it should be noted that unless otherwise clearly specified and defined, the terms "installed", "connected", "connected" and the like should be understood in a broad sense. For example, it may be a fixed connection, a detachable connection, or an integral connection; it may be a mechanical connection or an electrical connection; it may be directly connected, or indirectly connected through an intermediate medium, and it may be the communication inside two elements. For those of ordinary skill in the art, the specific meanings of the above terms in the present invention can be understood according to specific circumstances.

[0033] The above has described in detail an embodiment of the present invention, but the content described is only a preferred embodiment of the present invention and cannot be considered as used to limit the scope of implementation of the present invention. All equivalent changes and improvements made according to the scope of the application of the present invention should still fall within the scope covered by the patent of the present invention.

Claims

1. A high-temperature metal silicon unloading device, characterized in that: It includes a forming groove (7), a lifting block (8), and a lifting module. The cross-section of the forming groove (7) is trapezoidal in an inverted shape. A graphite lining layer (22) is provided inside the forming groove (7). The lifting block (8) is frustum-shaped and is located at the center of the forming groove (7). A lifting lug (13) is provided at the top of the lifting block (8). The lifting module includes a lifting box (2) and a slide rail (1). The lifting box (2) is located above the forming groove (7) and is installed on the slide rail (1). Inside the lifting box (2), there are a motor, a first guide wheel (14), a second guide wheel (15), a driving wheel (16), and a transmission wheel (20). The driving wheel (16) is powered by the motor. A lifting rope (4) is wound around the driving wheel (16). The lifting rope (4) successively bypasses the bottom of the second guide wheel (15) and the top of the first guide wheel (14). A hook fixing block (5) is fixed at the end of the lifting rope (4), and a hook (6) is fixed at the lower end of the hook fixing block (5). The transmission wheel (20) is located below the first guide wheel (14). First brackets (18) are installed at both ends of the first guide wheel (14), and second brackets (19) are installed at both ends of the transmission wheel (20). A spring strut (17) is installed between the first bracket (18) and the second bracket (19). A wheel speed sensor (21) is installed on the second bracket (19). Three rotating shafts (11) are rotatably connected to the bottom of the lifting box (2). Fixed wheels (10) are fixed in the middle of the three rotating shafts (11). Bevel gears (12) are installed at both ends of the three rotating shafts (11), and every two adjacent bevel gears (12) are meshed. An expansion rod (3) is fixedly connected to each fixed wheel (10). The lower end of the expansion rod (3) is hinged to the side surface of the hook fixing block (5). The lifting block (8) includes a graphite block (82) with a frustum shape on the outside. A steel column (81) penetrates through the inside of the graphite block (82). A circular steel plate (86) is vertically welded to the top of the steel column (81), and the lifting lug (13) is welded to the steel plate (86). A cylindrical cavity (85) is provided at the bottom of the graphite block (82). A circular bottom baffle (83) is vertically welded to the bottom of the steel column (81). A bottom graphite sealing block (84) is embedded in the cylindrical cavity (85), and the bottom graphite sealing block (84) is threadedly connected to the inner wall of the cylindrical cavity (85).

2. The high-temperature metal silicon unloading device according to claim 1, wherein: The lifting rope (4) located outside the lifting box (2) is perpendicular to the plane formed by the three rotating shafts (11).

3. The high-temperature metal silicon unloading device according to claim 2, wherein: The angle between any two rotating shafts (11) is 60 degrees.

4. The high-temperature metal silicon unloading device according to claim 1, characterized in that: The central axis of the lifting block (8) is perpendicular to the bottom surface of the forming groove (7).

5. The high-temperature metal silicon unloading device according to claim 1, characterized in that: The transmission wheel (20) is rotatably connected to the second bracket (19).

6. The high-temperature metal silicon unloading device according to claim 1, characterized in that: Matte particles are provided on the outer sides of the guide wheel (14) and the transmission wheel (20).

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