An automatic casting system and method for producing metallic silicon

Abstract

The invention discloses an automatic casting system and method for producing metallic silicon, relates to the field of casting technology, and comprises a silicon water discharging device, a silicon water quantitative casting device, a mold conveying device and a control unit, an ingot mold demoulding device and a silicon block transfer device; the ingot mold demoulding device comprises a walking track, a walking base plate is slidably installed on the top of the walking track, a walking oil cylinder is fixedly installed on the bottom of the walking base plate, and a lifting oil cylinder is fixedly installed on the top of the walking base plate. By arranging several types of slide plates and auxiliary plates, thrust is provided when the silicon block is moved, the demoulding fork plate is effectively protected and the force is evenly applied to it, the occurrence of dumping accidents is prevented, and the safety is improved. At the same time, stable auxiliary pushing is provided by semicircular protrusions, which can avoid the damage of the silicon block surface due to the auxiliary pushing. At the same time, the impact vibration of the extrusion plate on the connecting rod can avoid the influence of impurities on the silicon block surface, and the finished product effect in the demoulding process is improved.

Description

Technical Field

[0001] The present invention relates to the field of casting technology, and in particular to an automatic casting system and method for producing metallic silicon. Background Art

[0002] Industrial silicon is a commodity name that appeared in the mid-1960s. Its emergence is related to the rise of the semiconductor industry. Metal silicon is a product smelted from quartz and coke in an electric furnace. The content of the main component silicon element is about 98% (99.99% Si content is also included in metal silicon), and the remaining impurities are iron, aluminum, calcium, etc. Semiconductor silicon is used to make high-purity metal silicon for semiconductor devices. It is divided into various specifications due to its different uses. Metal silicon smelting is a high-energy-consuming production. Metal silicon production has a long history. With the tightening of energy policies and the development of energy conservation and emission reduction, as well as the promotion of new energy, metal silicon smelting has become a primary product and process. Many emerging energy companies have built a series of circular industrial chains such as metal silicon, polysilicon, monocrystalline silicon, and solar cells. In the next few years, it will inevitably affect the development of my country's entire energy field and the application of new energy.

[0003] In the prior art, in the smelting system of metallic silicon, there is a step of cooling and demolding the silicon block. The silicon block is separated from the work surface by a demolding robot and then transferred, and the silicon block is clamped by a demolding fork. However, since the silicon block may not be perfectly located at the center of the demolding fork each time it is clamped, the silicon block is easily deviated from the center of the demolding fork when the silicon block is clamped and moved, resulting in uneven force on the demolding fork, causing tipping or unstable clamping, affecting the cooling and demolding efficiency. Summary of the invention

[0004] The object of the present invention is to provide an automatic casting system and method for producing metallic silicon, so as to solve the problem that the demoulding fork plate is unevenly stressed, causing tipping or unstable clamping, and affecting the working efficiency of cooling and demoulding.

[0005] The present invention is achieved through the following technical solutions:

[0006] An automatic casting system for producing metallic silicon, comprising a silicon water furnace discharge device, a silicon water quantitative casting device, a mold conveying device and a control unit, an ingot mold demoulding device and a silicon block transfer device;

[0007] The ingot mold demolding device includes a walking track, a walking base plate is slidably installed on the top of the walking track, a walking cylinder is fixedly installed on the bottom of the walking base plate, a lifting cylinder is fixedly installed on the top of the walking base plate, an electric control slide plate is slidably installed on the lifting cylinder, a fixed frame is fixedly installed on the top of the lifting cylinder, a pushing cylinder is fixedly installed on the top of the electric control slide plate, a radiator is fixedly installed on the right end of the electric control slide plate, a demoulding fork plate is fixedly installed on the left end of the electric control slide plate, and a pushing plate is fixedly installed on the output end of the pushing cylinder. Silicon water is cast by an automated processing method, which reduces the labor cost during the silicon water casting process and improves the safety during the casting process.

[0008] Furthermore, a cross is fixedly mounted on the back of the push plate, and several types of slide plates are slidably sleeved on both ends of the push plate. Elastic elements are arranged between the outside of the several types of slide plates and the cross, so that the sliding of the several types of slide plates has elastic restoring force.

[0009] Furthermore, the bottoms of the several types of skateboards are slidably mounted on a cross, and a rotating column is rotatably mounted on the outermost ends of the several types of skateboards, and an auxiliary plate is penetrated and fixedly mounted on the rotating column.

[0010] Furthermore, the auxiliary plate is composed of a rectangular long plate and a circular plate, and a rectangular square hole is opened at the outermost end of the several types of skateboards. The height of the rectangular square hole is greater than the height of the rectangular long plate of the auxiliary plate, which facilitates the tail of the rectangular long plate of the auxiliary plate to move in the rectangular square hole.

[0011] Furthermore, an inclined plate is fixedly installed on one side of the external part of the several types of skateboards close to the auxiliary plate circular plate, and a semicircular protrusion is fixedly installed on the external part of the auxiliary plate. There are six semicircular protrusions, which are evenly distributed so that the force on the surface of the silicon block is evenly applied.

[0012] Furthermore, the six semicircular protrusions are symmetrically distributed about the circular plate center of the auxiliary plate, and an elastic element is provided between the outside of the auxiliary plate and the outside of the several-type skateboard, so that the rotation of the auxiliary plate has an elastic restoring force. In the absence of external force, the auxiliary plate can be restored to its initial position due to the elastic force.

[0013] Furthermore, a vibration mechanism is also provided on the auxiliary plate, which includes a connecting rod, which is fixedly mounted on the semicircular protrusions. The connecting rod is composed of a long rod fixed on the six semicircular protrusions and a vertical rod in the center, so that the vibration of the six semicircular protrusions can be controlled together.

[0014] Furthermore, a center hole is provided at the circular plate of the auxiliary plate, the vertical rod of the connecting rod is located at the center of the center hole, an extrusion plate is penetrated and slidably installed on the rotating column, an elastic element is provided between the outside of the extrusion plate and the outside of the auxiliary plate, the extrusion plate is located at one end of the center hole and is arranged near the top of the vertical rod of the connecting rod, and the top of the vertical rod of the connecting rod is arranged in a semicircular shape, which is convenient for discharging impurities that have been shaken off, preventing impurities from adhering to the surface of the auxiliary plate and being difficult to clean, and preventing impurities from adhering to the surface of the silicon block when the auxiliary plate is attached to the surface of the silicon block through the semicircular protrusion, thereby affecting subsequent work

[0015] Furthermore, a fixing plate is fixedly installed on the back of the several-type skateboard, half of which is located in the rectangular square hole and on the rotation path of the extrusion plate following the auxiliary plate, and the end of the extrusion plate away from the connecting rod is arranged to be inclined, and the total thickness of the auxiliary plate and the extrusion plate is greater than the thickness of the several-type skateboard, so that the connecting rod vibrates as a whole, and impurities such as silicon slag generated during the first operation on the surface of the semicircular protrusion are shaken off, thereby avoiding the influence of impurities when the semicircular protrusion contacts the surface of the silicon block.

[0016] An automatic casting method for producing metallic silicon, using the above-mentioned automatic casting system for producing metallic silicon, comprises the following steps:

[0017] S1, firstly, silicon water is discharged from the furnace. The silicon water discharge device is used to transport the silicon water ladle to the automatic ladle turning machine, and inject the silicon water into the molten iron ladle. After the molten iron ladle is filled, the track turntable is rotated into place, and the molten iron ladle is transported by the electrified rail car. After being transported into place, the next step can be started;

[0018] S2, quantitative casting, the electrified rail car transports the molten iron ladle to the position of the automatic bag turning machine, the automatic bag turning machine automatically hangs the molten iron ladle in place, after the molten iron ladle is hung, the fixed mold car enters under the molten iron ladle section by section, and the molten iron in the molten iron ladle enters the fixed mold groove of the fixed mold car through the chute. The silicon water quantitative casting device includes a hydraulic component, a weighing module and an angle sensor component. The hydraulic component is used to cast the silicon water ladle into the ingot mold mold component, the weighing module is used to measure the weight of the silica in the silicon water ladle, and the angle sensor is used to detect the tipping angle of the silicon water ladle in real time to achieve quantitative and constant speed casting. After the casting is completed, the fixed mold car is moved to the cooling and demolding station by the tractor for cooling and demolding;

[0019] S3, ingot mold demolding. The ingot mold demolding device is used to separate the silicon block from the mold, and the silicon block needs to be transferred to the next workstation. After the silicon block is cooled, the demolding robot starts to move, and separates the silicon block from the ingot mold through the demolding fork plate to realize demolding. During the demolding operation, the silicon block will first contact the surface of the auxiliary plate, and the silicon block will push the auxiliary plate outward. At this time, the auxiliary plate will drive the several-type slide plate to move outward through the rotating column. The several-type slide plate moves outward and stretches the elastic element. The elastic element provides pulling force to the several-type slide plate, and the several-type slide plate provides thrust to the silicon block, driving the several-type slide plate to push the silicon block to the equilibrium position, that is, the center of the push plate. At the same time, the circular plate part of the auxiliary plate The auxiliary plate rotates clockwise and gradually fits to the surface of the silicon block, and the auxiliary plate drives the six semicircular protrusions to contact the surface of the silicon block. Through the thrust of the several-type slide plate, the auxiliary plate assists in pushing the silicon block through the semicircular protrusions. When the auxiliary plate rotates clockwise to assist in pushing the silicon block, the auxiliary plate drives the inclined end of the extrusion plate to contact the fixed plate, and the fixed plate extrude part of the extrusion plate toward the center hole. At this time, the extrusion plate will hit the top of the vertical rod of the connecting rod, causing the entire connecting rod to vibrate. The connecting rod will transfer the vibration from the long rod to the six semicircular protrusions, and shake off impurities such as silicon slag generated by the first work on the surface of the semicircular protrusion, thereby avoiding the influence of impurities when the semicircular protrusion contacts the surface of the silicon block, and improving the finished product effect during the demoulding process;

[0020] S4, the process is completed. After the silicon block is separated from the ingot mold, the silicon block is pushed into the transfer box by the pusher plate. The silicon block in the transfer box is then sent to the finishing bay by the transfer vehicle for further trimming, thereby completing the automatic casting operation process of industrial silicon smelting.

[0021] Compared with the prior art, the present invention has the following advantages and beneficial effects:

[0022] 1. The present invention provides thrust when the silicon block is moved by providing several types of slide plates and auxiliary plates, thereby ensuring the overall force balance of the silicon block, and the silicon block is always kept at the center of the demoulding fork plate, effectively protecting the demoulding fork plate and making it evenly stressed, preventing the occurrence of dumping accidents, and improving safety. At the same time, the semicircular protrusion provides stable auxiliary pushing, which can avoid damage to the surface of the silicon block due to the auxiliary pushing;

[0023] 2. The present invention provides a vibration mechanism. When the auxiliary plate rotates clockwise to assist in pushing the silicon block, the auxiliary plate drives the inclined end of the extrusion plate to contact the fixed plate until the rectangular long plate portion of the auxiliary plate completely enters the rectangular square hole. The fixed plate has extruded part of the extrusion plate toward the center hole. At this time, the extrusion plate will hit the top of the vertical rod of the connecting rod, causing the entire connecting rod to vibrate. The connecting rod will transmit the vibration from the long rod to the six semicircular protrusions, and shake off the silicon slag and other impurities generated by the first work on the surface of the semicircular protrusions, thereby avoiding the influence of impurities when the semicircular protrusions contact the surface of the silicon block, and improving the finished product effect during the demoulding process;

[0024] 3. The present invention is provided with a central hole, so that the impurities that fall off can be discharged easily, and the impurities can be prevented from being attached to the surface of the auxiliary plate and being difficult to clean. The impurities can be prevented from being attached to the surface of the silicon block when the auxiliary plate is attached to the surface of the silicon block through the semicircular protrusion, thereby affecting the subsequent work. When the silicon block is pushed out and separated after demoulding, the auxiliary plate will rotate counterclockwise to return to the initial position due to the elastic force of the elastic element, and the extrusion plate will also return to the initial position due to the separation from the fixed plate and the use of the elastic element, so as to facilitate the next demoulding work.

[0025] 4. The present invention uses an automated processing method to cast molten silicon, which reduces the labor cost during the casting process of molten silicon and can also improve the safety of the casting process. The casting system requires high processing efficiency and more flexible and convenient operation. It can run and process continuously on its own and has simple later maintenance. After the entire casting process is automated, on-site casting does not require manual operation. From receiving the molten silicon bag to casting, the system can detect, control, monitor and adjust in real time to realize intelligent and unmanned production. BRIEF DESCRIPTION OF THE DRAWINGS

[0026] The drawings described herein are used to provide a further understanding of the embodiments of the present invention, constitute a part of this application, and do not constitute a limitation of the embodiments of the present invention. In the drawings:

[0027] Figure 1 It is a schematic diagram of the system composition of the present invention;

[0028] Figure 2 It is a schematic diagram of the external structure of the ingot mold demoulding device;

[0029] Figure 3 This is a schematic diagram of the partial structure of the push plate from the right side;

[0030] Figure 4 It is a schematic diagram of the external local structure of the auxiliary board;

[0031] Figure 5 This is a schematic diagram of the external partial structure of the auxiliary board from the rear;

[0032] Figure 6It is a schematic diagram of the external local structure of the extruded plate;

[0033] Figure 7 Schematic diagram of the external local structure of the connecting rod.

[0034] The reference numerals represent: 1-travel track, 2-travel base plate, 3-travel cylinder, 4-lifting cylinder, 5-electrically controlled slide plate, 6-fixed frame, 7-pushing cylinder, 8-radiator, 9-demolding fork plate, 10-pushing plate, 11-cross, 12-type slide plate, 13-rotating column, 14-auxiliary plate, 15-rectangular square hole, 16-center hole, 17-semicircular protrusion, 18-connecting rod, 19-extrusion plate, 20-fixed plate, 21-inclined plate. DETAILED DESCRIPTION

[0035] In order to make the purpose, technical scheme and advantages of the present invention more clearly understood, the present invention is further described in detail below in conjunction with the embodiments and drawings. The schematic implementation modes and descriptions of the present invention are only used to explain the present invention and are not intended to limit the present invention. It should be noted that the present invention is already in the actual development and use stage.

[0036] like Figures 1 to 7 As shown, the present invention provides an automatic casting system for producing metallic silicon, including a silicon water furnace discharge device, a silicon water quantitative casting device, a mold conveying device and a control unit, an ingot mold demoulding device and a silicon block transfer device;

[0037] The ingot mold demoulding device comprises a walking track 1, a walking base plate 2 is slidably installed on the top of the walking track 1, a walking cylinder 3 is fixedly installed on the bottom of the walking base plate 2, a lifting cylinder 4 is fixedly installed on the top of the walking base plate 2, an electric control slide plate 5 is slidably installed on the lifting cylinder 4, a fixed frame 6 is fixedly installed on the top of the lifting cylinder 4, a pushing cylinder 7 is fixedly installed on the top of the electric control slide plate 5, the pushing cylinder 7 uses a cylinder with a telescopic function at the output end, a radiator 8 is fixedly installed on the right end of the electric control slide plate 5, a demoulding fork plate 9 is fixedly installed on the left end of the electric control slide plate 5, and a pushing plate 10 is fixedly installed on the output end of the pushing cylinder 7;

[0038] A cross 11 is fixedly installed on the back of the push plate 10, and several-shaped slide plates 12 are slidably sleeved at both ends of the push plate 10. An elastic element is arranged between the outside of the several-shaped slide plate 12 and the cross 11. The elastic element here uses a metal spring, so that the sliding of the several-shaped slide plate 12 has elastic restoring force. The bottom of the several-shaped slide plate 12 is slidably installed on the cross 11, and a rotating column 13 is rotatably installed on the outermost end of the several-shaped slide plate 12. An auxiliary plate 14 is penetrated and fixedly installed on the rotating column 13. The auxiliary plate 14 is composed of a rectangular long plate and a circular plate as a whole. A rectangular square hole 15 is opened at the outermost end of the several-shaped slide plate 12. The height of the rectangular square hole 15 is greater than the height of the rectangular long plate of the auxiliary plate 14, which is convenient for the rectangular long plate of the auxiliary plate 14. The tail of the plate moves in the rectangular square hole 15, and an inclined plate 21 is fixedly installed on one side of the external surface of the several-type skateboard 12 close to the circular plate of the auxiliary plate 14. A semicircular protrusion 17 is fixedly installed on the external surface of the auxiliary plate 14. There are six semicircular protrusions 17, and the six semicircular protrusions 17 are symmetrically distributed about the circular plate center of the auxiliary plate 14. An elastic element is provided between the external surface of the auxiliary plate 14 and the external surface of the several-type skateboard 12. Here, a metal spring is used as the elastic element, so that the rotation of the auxiliary plate 14 has an elastic restoring force. In the absence of external force, the auxiliary plate 14 can be restored to its initial position due to the elastic force. The initial position of the auxiliary plate 14 is that the tail of the rectangular long plate of the auxiliary plate 14 is located outside the rectangular square hole 15 (such as Figure 4 As shown), this auxiliary plate 14 and several types of slide plates 12 are only suitable for silicon blocks with a width smaller than the lateral width of the auxiliary plate 14.

[0039] In the above technical scheme, the silicon water furnace discharge device is used to convey the silicon water bag to the automatic bag turning machine, the silicon water quantitative casting device includes a hydraulic component, a weighing module and an angle sensor component, the hydraulic component is used to cast the silicon water bag into the ingot mold mold component, the weighing module is used to measure the weight of the silica in the silicon water bag, the angle sensor is used to detect the tipping angle of the silicon water bag in real time, the silicon water quantitative casting device is used to achieve quantitative and constant speed casting, and then the mold assembly that has reached the casting liquid level is conveyed to the next process through the mold conveying device and the control unit, the ingot mold demolding device is used to separate the silicon block from the mold, and the silicon block needs to be transported to the next station through the silicon block transporting device;

[0040] The walking base plate 2 drives the bottom of the walking base plate 2 to slide on the walking track 1 through the output end of the walking cylinder 3. The electric control slide plate 5 can be raised and lowered on the lifting cylinder 4 under the control of the staff. The lifting operation of the electric control slide plate 5 can drive the demoulding fork plate 9 to follow the movement, so that the demoulding fork plate 9 can be adjusted to the position of the bottom of the silicon block to separate the silicon block from the mold. At the same time, the pushing cylinder 7, the radiator 8 and the pushing plate 10 will also be lifted and lowered with the electric control slide plate 5. The radiator 8 can perform heat dissipation operation on the pushing cylinder 7 and the electric control slide plate 5 in real time. The pushing plate 10 can be driven by the pushing cylinder 7 to push the silicon block out during the pushing operation. The fixed frame 6 is convenient for providing a good frame position positioning operation when installing the overall demoulding machine;

[0041] During the demoulding operation, the walking base plate 2 slides forward, and the demoulding fork plate 9 is driven to move toward the bottom of the silicon block by the lifting cylinder 4, and the silicon block can move toward the push plate 10 relative to the demoulding fork plate 9. When the silicon block moves to the position of the auxiliary plate 14, the silicon block will first contact the surface of the auxiliary plate 14, and the silicon block will push the auxiliary plate 14 to rotate counterclockwise. When the auxiliary plate 14 rotates counterclockwise to the inclined plate 21, the auxiliary plate 14 will be stuck by the inclined plate 21 and cannot continue to rotate counterclockwise. At this time, the silicon block will move along the inclined surface of the auxiliary plate 14, and at the same time, the silicon block will push the auxiliary plate 14 outward. The auxiliary plate 14 will drive the several-shaped slide plate 12 to move outward through the rotating column 13. The several-shaped slide plate 12 will stretch the elastic element when it moves outward. The elastic element will provide pulling force to the several-shaped slide plate 12, and the several-shaped slide plate 12 will provide pushing force to the silicon block. The several-shaped slide plates 12 on the left and right sides of the cross 11 will stretch the elastic element at the same time. In order to maintain the balance of force, the elastic elements on both sides will pull the several-shaped slide plate 12 back, thereby driving the several-shaped slide plate 12 to push the silicon block to move to the balanced position, that is, the center of the push plate 10. In this way, when the silicon block is moved for demoulding, the silicon block is always in the center of the push plate 10, so that The demoulding fork plate 9 can bear force evenly, and it is not easy to cause dumping accidents, and the safety performance is high. At the same time, when the silicon block moves to the depth of the several-shaped slide plate 12, the silicon block will press the rectangular long plate of the auxiliary plate 14 extending out of the rotating column 13, so that the auxiliary plate 14 rotates clockwise with the rotating column 13 as the center of the circle, and the rectangular long plate of the auxiliary plate 14 extending out of the rotating column 13 will enter the rectangular square hole 15, so that the circular plate part of the auxiliary plate 14 can rotate clockwise and gradually fit to the surface of the silicon block, and the auxiliary plate 14 will drive the six semicircular protrusions 17 to contact the surface of the silicon block, and the thrust of the several-shaped slide plate 12 makes the auxiliary plate 14 pass through the semicircular protrusions The lift 17 performs auxiliary pushing on the silicon block, making the movement of the silicon block more stable, and at the same time, the thrust is evenly distributed and output from six points, avoiding damage to the surface of the silicon block caused by a single force point. Finally, by providing several types of slide plates 12 and auxiliary plates 14, thrust is provided when the silicon block is moved to ensure the overall force balance of the silicon block, and the silicon block is always maintained at the center position of the demoulding fork plate 9, which effectively protects the demoulding fork plate 9 and makes the force uniform, preventing the occurrence of tipping accidents and improving safety. At the same time, the semicircular protrusion 17 provides stable auxiliary pushing, which can avoid damage to the surface of the silicon block due to the auxiliary pushing.

[0042] like Figure 3 , Figure 4 , Figure 5 , Figure 6 and Figure 7As shown, in the present invention, a vibration mechanism is also provided on the auxiliary plate 14, and the vibration mechanism includes a connecting rod 18, and the connecting rod 18 is fixedly installed on the semicircular protrusion 17. The connecting rod 18 is composed of a long rod fixed on six semicircular protrusions 17 and a vertical rod in the center. A central hole 16 is opened at the circular plate of the auxiliary plate 14, and the vertical rod of the connecting rod 18 is located at the center of the central hole 16. An extrusion plate 19 is penetrated and slidably installed on the rotating column 13, and an elastic element is provided between the outside of the extrusion plate 19 and the outside of the auxiliary plate 14. Here, the elastic element uses a metal spring, so that the sliding of the extrusion plate 19 has an elastic restoring force, and the extrusion plate 19 is located at one end of the central hole 16 and is arranged near the top of the vertical rod of the connecting rod 18, so that the extrusion The movement of plate 19 can contact the top of the vertical rod of connecting rod 18. The top of the vertical rod of connecting rod 18 is set to be semicircular, which is convenient for extrusion displacement during contact. A fixed plate 20 is fixedly installed on the back of the type skateboard 12. The fixed plate 20 is located outside the rectangular square hole 15. Half of the fixed plate 20 is located in the hole of the rectangular square hole 15 and on the rotation path of the extrusion plate 19 following the auxiliary plate 14. The end of the extrusion plate 19 away from the connecting rod 18 is set to be inclined, which is convenient for extrusion with the fixed plate 20. The total thickness of the auxiliary plate 14 and the extrusion plate 19 is greater than the thickness of the type skateboard 12. Therefore, when the rectangular long plate part of the auxiliary plate 14 rotates into the rectangular square hole 15, the extrusion plate 19 will be extruded with the fixed plate 20.

[0043] In the above technical solution, when the auxiliary plate 14 rotates clockwise to assist in pushing the silicon block, the rectangular long plate portion of the auxiliary plate 14 will enter the rectangular square hole 15, and the auxiliary plate 14 will drive the extrusion plate 19 to enter the rectangular square hole 15. When the rectangular long plate portion of the auxiliary plate 14 is about to completely enter the rectangular square hole 15, the auxiliary plate 14 will drive the inclined end of the extrusion plate 19 to contact the fixed plate 20, and the auxiliary plate 14 continues to rotate until the rectangular long plate portion of the auxiliary plate 14 completely enters the rectangular square hole 15. The fixed plate 20 has squeezed part of the extrusion plate 19 toward the center hole 16. At this time, the extrusion plate 19 will hit the top of the vertical rod of the connecting rod 18, causing the connecting rod 18 to vibrate as a whole, and the connecting rod 18 will transfer the vibration from the long plate to the center hole 16. The rod is transmitted to the six semicircular protrusions 17, and impurities such as silicon slag produced on the surface of the semicircular protrusions 17 during the previous operation are shaken off, thereby avoiding the influence of impurities when the semicircular protrusions 17 contact the surface of the silicon block, and improving the effect of the finished product during the demoulding process. At the same time, the center hole 16 is set at this position to facilitate the discharge of the shaken impurities, prevent the impurities from adhering to the surface of the auxiliary plate 14 and being difficult to clean, and prevent the impurities from adhering to the surface of the silicon block when the auxiliary plate 14 is attached to the surface of the silicon block through the semicircular protrusions 17 and affecting subsequent work. When the demoulding is completed and the silicon block is pushed out and separated, the auxiliary plate 14 will rotate counterclockwise back to the initial position due to the elastic force of the elastic element, and the extrusion plate 19 will also return to the initial position due to the separation from the fixed plate 20 and the use of the elastic element, so as to facilitate the next demoulding work.

[0044] The present invention provides an automatic casting method for producing metallic silicon, comprising the following steps:

[0045] S1, firstly, silicon water is discharged from the furnace. The silicon water discharge device is used to transport the silicon water ladle to the automatic ladle turning machine, and inject the silicon water into the molten iron ladle. After the molten iron ladle is filled, the track turntable is rotated into place, and the molten iron ladle is transported by the electrified rail car. After being transported into place, the next step can be started;

[0046] S2, quantitative casting, the electrified rail car transports the molten iron ladle to the position of the automatic bag turning machine, the automatic bag turning machine automatically hangs the molten iron ladle in place, after the molten iron ladle is hung, the fixed mold car enters under the molten iron ladle section by section, and the molten iron in the molten iron ladle enters the fixed mold groove of the fixed mold car through the chute. The silicon water quantitative casting device includes a hydraulic component, a weighing module and an angle sensor component. The hydraulic component is used to cast the silicon water ladle into the ingot mold mold component, the weighing module is used to measure the weight of the silica in the silicon water ladle, and the angle sensor is used to detect the tipping angle of the silicon water ladle in real time to achieve quantitative and constant speed casting. After the casting is completed, the fixed mold car is moved to the cooling and demolding station by the tractor for cooling and demolding;

[0047] S3, ingot mold demolding. The ingot mold demolding device is used to separate the silicon block from the mold, and the silicon block needs to be transferred to the next workstation. After the silicon block is cooled, the demolding robot starts to move, and separates the silicon block from the ingot mold through the demolding fork plate to realize demolding. During the demolding operation, the silicon block will first contact the surface of the auxiliary plate 14, and the silicon block will push the auxiliary plate 14 outward. At this time, the auxiliary plate 14 will drive the several-type slide plate 12 to move outward through the rotating column 13. The several-type slide plate 12 moves outward and stretches the elastic element. The elastic element provides a pulling force to the several-type slide plate 12, and the several-type slide plate 12 provides a thrust to the silicon block, driving the several-type slide plate 12 to push the silicon block to the equilibrium position, that is, the center of the push plate 10. At the same time, the circular plate part of the auxiliary plate 14 can rotate clockwise and gradually Gradually fit to the surface of the silicon block, the auxiliary plate 14 will drive the six semicircular protrusions 17 to contact the surface of the silicon block, and the thrust of the several-type slide plate 12 will enable the auxiliary plate 14 to assist in pushing the silicon block through the semicircular protrusions 17. When the auxiliary plate 14 rotates clockwise to assist in pushing the silicon block, the auxiliary plate 14 will drive the inclined end of the extrusion plate 19 to contact the fixed plate 20, and the fixed plate 20 will extrude part of the extrusion plate 19 toward the center hole 16. At this time, the extrusion plate 19 will hit the top of the vertical rod of the connecting rod 18, so that the connecting rod 18 vibrates as a whole. The connecting rod 18 will transfer the vibration from the long rod to the six semicircular protrusions 17, and shake off the impurities such as silicon slag generated by the first work on the surface of the semicircular protrusion 17, thereby avoiding the influence of impurities when the semicircular protrusion 17 contacts the surface of the silicon block, and improving the finished product effect during the demoulding process;

[0048] S4, the process is completed. After the silicon block is separated from the ingot mold, the silicon block is pushed into the transfer box by the pusher plate. The silicon block in the transfer box is then sent to the finishing bay by the transfer vehicle for further trimming, thereby completing the automatic casting operation process of industrial silicon smelting.

[0049] In summary, by providing several types of slide plates 12 and auxiliary plates 14, thrust is provided when the silicon block is moved, which effectively protects the demolding fork plate 9 and makes it evenly stressed, prevents the occurrence of tipping accidents, and improves safety. At the same time, the semicircular protrusion 17 provides stable auxiliary push, which can avoid damage to the surface of the silicon block due to the auxiliary push. At the same time, the impact vibration of the extrusion plate 19 on the connecting rod 18 can avoid the influence of impurities on the surface of the silicon block, thereby improving the effect of the finished product during the demolding process.

[0050] This research and development solution uses an automated processing method to cast molten silicon, which reduces the labor cost during the molten silicon casting process and can also improve the safety of the casting process.

[0051] The casting system requires high processing efficiency, more flexible and convenient operation, the ability to run continuously on its own, and simple later maintenance. After the entire casting process is automated, on-site casting will no longer require manual operation. From receiving the silicon water bag to casting, the system will detect, control, monitor, and adjust in real time to achieve intelligent and unmanned production.

[0052] The specific implementation methods described above further illustrate the objectives, technical solutions and beneficial effects of the present invention in detail. It should be understood that the above description is only a specific implementation method of the present invention and is not intended to limit the scope of protection of the present invention. Any modifications, equivalent substitutions, improvements, etc. made within the spirit and principles of the present invention should be included in the scope of protection of the present invention.

Claims

1. An automatic casting system for producing metallic silicon, characterized in that: It includes a silicon water discharging device, a silicon water quantitative casting device, a mold conveying device and a control unit, an ingot mold demoulding device and a silicon block transporting device; The ingot mold demoulding device comprises a walking track (1), a walking base plate (2) is slidably mounted on the top of the walking track (1), a walking cylinder (3) is fixedly mounted on the bottom of the walking base plate (2), a lifting cylinder (4) is fixedly mounted on the top of the walking base plate (2), an electric control slide plate (5) is slidably mounted on the lifting cylinder (4), a fixed frame (6) is fixedly mounted on the top of the lifting cylinder (4), a push cylinder (7) is fixedly mounted on the top of the electric control slide plate (5), a radiator (8) is fixedly mounted on the right end of the electric control slide plate (5), a demoulding fork plate (9) is fixedly mounted on the left end of the electric control slide plate (5), and a push plate (10) is fixedly mounted on the output end of the push cylinder (7); A cross (11) is fixedly mounted on the back of the push plate (10), and a plurality of slide plates (12) are slidably sleeved at both ends of the push plate (10), and an elastic element is provided between the outside of the plurality of slide plates (12) and the cross (11), and the bottom of the plurality of slide plates (12) is slidably mounted on the cross (11), and a rotating column (13) is rotatably mounted on the outermost end of the plurality of slide plates (12), and an auxiliary plate (14) is passed through and fixedly mounted on the rotating column (13), and the auxiliary plate (14) is composed of a rectangular long plate and a circular plate as a whole, and a rectangular square hole (15) is opened at the outermost end of the plurality of slide plates (12), and the height of the rectangular square hole (15) is greater than the height of the rectangular long plate of the auxiliary plate (14); The auxiliary plate (14) is also provided with a vibration mechanism, which includes a connecting rod (18), the connecting rod (18) being fixedly mounted on the semicircular protrusion (17), the connecting rod (18) being integrally formed of a long rod fixed on six semicircular protrusions (17) and a vertical rod in the center, the circular plate of the auxiliary plate (14) being provided with a center hole (16), the vertical rod of the connecting rod (18) being located at the center of the center hole (16), an extrusion plate (19) penetrating and slidably mounted on the rotating column (13), an elastic element being provided between the outside of the extrusion plate (19) and the outside of the auxiliary plate (14), the extrusion plate (19) being arranged at one end of the center hole (16) close to the top of the vertical rod of the connecting rod (18), the top of the vertical rod of the connecting rod (18) being arranged in a semicircular shape; An inclined plate (21) is fixedly mounted on one side of the external part of the several-type skateboard (12) close to the circular plate of the auxiliary plate (14); a semicircular protrusion (17) is fixedly mounted on the external part of the auxiliary plate (14); the number of the semicircular protrusions (17) is six, and the six semicircular protrusions (17) are symmetrically distributed about the circular plate center of the auxiliary plate (14); an elastic element is provided between the external part of the auxiliary plate (14) and the external part of the several-type skateboard (12); a fixed plate (20) is fixedly mounted on the back of the several-type skateboard (12); half of the fixed plate (20) is located in the hole of the rectangular square hole (15) and on the rotation path of the extrusion plate (19) following the auxiliary plate (14); the end of the extrusion plate (19) away from the connecting rod (18) is arranged to be inclined; the total thickness of the auxiliary plate (14) and the extrusion plate (19) is greater than the thickness of the several-type skateboard (12).

2. An automatic casting method for producing metallic silicon, characterized in that: The automatic casting system for producing metallic silicon according to claim 1 comprises the following steps: S1, firstly, silicon water is discharged from the furnace. The silicon water discharge device is used to transport the silicon water ladle to the automatic ladle turning machine, and inject the silicon water into the molten iron ladle. After the molten iron ladle is filled, the track turntable is rotated into place, and the molten iron ladle is transported by the electrified rail car. After being transported into place, the next step can be started; S2, quantitative casting, the electrified rail car transports the molten iron ladle to the position of the automatic bag turning machine, the automatic bag turning machine automatically hangs the molten iron ladle in place, after the molten iron ladle is hung, the fixed mold car enters under the molten iron ladle section by section, and the molten iron in the molten iron ladle enters the fixed mold groove of the fixed mold car through the chute. The silicon water quantitative casting device includes a hydraulic component, a weighing module and an angle sensor component. The hydraulic component is used to cast the silicon water ladle into the ingot mold mold component, the weighing module is used to measure the weight of the silica in the silicon water ladle, and the angle sensor is used to detect the tipping angle of the silicon water ladle in real time to achieve quantitative and constant speed casting. After the casting is completed, the fixed mold car is moved to the cooling and demolding station by the tractor for cooling and demolding; S3, ingot mold demoulding. The ingot mold demoulding device is used to separate the silicon block from the mold, and the silicon block needs to be transferred to the next workstation. After the silicon block is cooled, the demoulding robot starts to move, and separates the silicon block from the ingot mold through the demoulding fork plate (9) to achieve demoulding. During the demoulding operation, the silicon block will first contact the surface of the auxiliary plate (14), and the silicon block will push the auxiliary plate (14) outward. At this time, the auxiliary plate (14) will drive the type slide plate (12) to move outward through the rotating column (13). The type slide plate (12) moves outward and stretches the elastic element. The elastic element provides a pulling force to the type slide plate (12), and the type slide plate (12) provides a thrust to the silicon block, driving the type slide plate (12) to push the silicon block to the equilibrium position, that is, the center of the push plate (10). At the same time, the circular plate part of the auxiliary plate (14) rotates clockwise and gradually fits to the silicon block. The auxiliary plate (14) drives the six semicircular protrusions (17) to contact the surface of the silicon block. The auxiliary plate (14) assists in pushing the silicon block through the semicircular protrusions (17) through the thrust of the sliding plate (12). When the auxiliary plate (14) rotates clockwise to assist in pushing the silicon block, the auxiliary plate (14) drives the inclined end of the extrusion plate (19) to contact the fixed plate (20). The fixed plate (20) extrude part of the extrusion plate (19) toward the center hole (16). At this time, the extrusion plate (19) hits the top of the vertical rod of the connecting rod (18), causing the connecting rod (18) to vibrate as a whole. The connecting rod (18) transmits the vibration from the long rod to the six semicircular protrusions (17), vibrating off the silicon slag impurities generated on the surface of the semicircular protrusions (17) during the first operation, thereby avoiding the influence of impurities when the semicircular protrusions (17) contact the surface of the silicon block, and improving the finished product effect during the demoulding process; S4, the process is finished. After the silicon block is separated from the ingot mold, the silicon block is pushed into the transfer box by the push plate (10). The silicon block in the transfer box is then sent to the finishing bay by the transfer vehicle for further trimming, thereby completing the industrial silicon smelting automatic casting operation process.

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