Auxiliary device for cleaning crucible of silicon core furnace

Abstract

The utility model provides an auxiliary device for cleaning a crucible of a silicon core furnace, and relates to the technical field of monocrystalline silicon production. The auxiliary device for cleaning the crucible of the silicon core furnace comprises a mounting frame; the lifting mechanism is arranged on the mounting frame; the turnover mechanism is arranged on the lifting mechanism; wherein the turnover mechanism can be lifted and descended through the lifting mechanism; the turnover mechanism is at least provided with a driving assembly, a containing assembly is arranged on the driving assembly, and the containing assembly can rotate through the driving assembly. The placing assembly can be used for placing a single crystal furnace crucible; the placing assembly is provided with a fixing assembly, the fixing assembly can limit the position of the single crystal furnace crucible in the rotating process of the placing assembly, so that the single crystal furnace crucible and the placing assembly are relatively fixed, and the turnover mechanism is provided with a discharge port; according to the utility model, the safety degree and the operation efficiency in the operation process can be improved, and the production cost can be reduced.

Description

TECHNICAL FIELD

[0001] The utility model relates to monocrystalline silicon production technical field, concretely is a kind of silicon core furnace crucible cleaning auxiliary device. BACKGROUND

[0002] The novel monocrystalline silicon round silicon core drawing technology can realize continuous silicon core output by repeated complex feeding, and after the crucible life reaches the limit, the furnace cooling process is started. In production, in order to ensure the quality of the last group of round silicon cores in the silicon core drawing, a certain amount of silicon core bottom residual material is left to ensure the stability of the thermal field temperature. These residual silicon materials must be handled by the operator and placed in categories. When these silicon materials are lifted out together with the crucible, they will enter the silicon material recycling process. Since the silicon liquid solidifies into a solid after cooling and is tightly adhered to the crucible, the operator needs to use a hammer or other tools to knock the solidified silicon material at the lower edge of the crucible, break the silicon material, and make it detach from the adhesion of the crucible and fall from the lower edge. In order to better recycle the silicon material. Since the purity of the silicon material affects the recycling price, it is directly related to the recycling rate and reuse efficiency, so this step is crucial in the silicon core production process. The process of using a hammer to knock the silicon material requires certain skills and experience. The operator needs to operate carefully and maintain high attention at all times to ensure that the knocking force and angle are moderate to avoid damaging the crucible or causing excessive fragmentation of the silicon material, thereby affecting the recycling quality. At the same time, this process also has certain safety risks, so the operator needs to wear appropriate personal protective equipment, such as a safety helmet, protective glasses, and high-temperature gloves, to ensure his safety.

[0003] In the prior art, since the lower edge of the crucible has a small diameter, the worker will face great difficulty in knocking the crucible bottom material. Moreover, since the crucible bottom material block is large, the diameter of the broken block is too large, which easily blocks the lower edge of the crucible, and the operator must intervene manually to ensure that the block is smoothly detached, greatly reducing the operation efficiency. At the same time, this operation method not only has low efficiency, but also easily damages the crucible and the transfer vehicle. Due to the weight of the crucible bottom material and the stress during knocking by the operator, the lower edge of the crucible is easily damaged and cannot be reused. The existing method of knocking the crucible bottom material has the above problems, which not only has low safety factor and operation efficiency, high production cost, and reduces the service life of the crucible. SUMMARY

[0004] The utility model provides a silicon core furnace crucible cleaning auxiliary device that can improve the safety level and operation efficiency of the operation process, and help reduce production cost, to solve the problem of large manual operation difficulty, low efficiency and easy damage to the crucible caused by the small diameter of the lower edge of the crucible in the prior art.

[0005] The utility model discloses a technical scheme is:

[0006] A silicon core furnace crucible cleaning auxiliary device contains:

[0007] Mounting frame is set up on the first support rod and the second support rod between the first support rod and the second support rod and is provided with the crossbeam, and the lifting mechanism is provided on the first support rod.

[0008] Lifting mechanism, set up on the mounting frame, and

[0009] The turnover mechanism is set up on the lifting mechanism.

[0010] Wherein, the turnover mechanism can be lifted and lowered through the lifting mechanism, and the turnover mechanism has at least a driving assembly, a placing assembly is arranged on the driving assembly, the placing assembly can rotate through the driving assembly, and the placing assembly can place a single crystal furnace crucible, a fixing assembly is arranged on the placing assembly, the fixing assembly can limit the position of the single crystal furnace crucible during the rotation of the placing assembly, so that the single crystal furnace crucible is relatively fixed with the placing assembly, and an exhaust port is arranged on the turnover mechanism.

[0011] Further, the mounting frame has at least a first support rod and a second support rod, a crossbeam is arranged between the first support rod and the second support rod, and the lifting mechanism is arranged on the first support rod.

[0012] Further, the bottom of the first support rod is provided with a first cross bar, and the bottom of the second support rod is provided with a second cross bar.

[0013] Further, a first connecting rib is arranged between the middle part of the first support rod and the two ends of the first cross bar, and between the middle part of the second support rod and the two ends of the second cross bar, and two second connecting ribs are arranged between the middle part of the crossbeam and the middle part of the first support rod and the middle part of the second support rod.

[0014] Further, the lifting mechanism has at least a lifting assembly arranged on the mounting frame, and a hydraulic rod is connected to the lifting assembly, and the turnover mechanism is arranged at the telescopic end of the hydraulic rod.

[0015] Further, the lifting mechanism has at least a sliding rail, a sliding block is slidingly arranged on the sliding rail, and a clamping joint is arranged on the sliding block, the turnover mechanism has at least a mounting plate, a clamping groove is arranged on the mounting plate, and the clamping joint can be clamped in the clamping groove.

[0016] Further, a crucible clamp is arranged on the inner side wall of the placing assembly, a cushion block is arranged at the bottom of the inner side wall of the placing assembly, and the inner side surfaces of the crucible clamp and the cushion block are matched with the shape of the crucible of the single crystal furnace.

[0017] Further, one side of the placing assembly is provided with a movable plate, one end of the movable plate is hinged to the placing assembly through a second hinge shaft.

[0018] Further, the other end of the movable plate opposite to the second hinge shaft is provided with a limiting hole, and a limiter is rotatably arranged on the placing assembly and can be inserted into the limiting hole.

[0019] Further, the fixing assembly is provided with at least a cover plate hinged to the placing assembly through a first hinge shaft, and the discharge port is arranged on the cover plate.

[0020] The utility model discloses beneficial effect is:

[0021] 1. The utility model discloses a lifting mechanism on the mounting bracket is set up to lift the crucible, and sets up the turnover mechanism to turn over the crucible, and cooperates the fixing mechanism that sets up on the turnover mechanism and fixes the relative position of the crucible, and the discharge port is used for discharging the silicon material that knocks down, makes the single crystal furnace crucible can be converted to the state of the larger upper end and is knocked down to the bottom material, realizes the bottom material knock -down new method of single crystal furnace crucible overall turnover. After turning over, the impact force that the bottom material of the crucible is used to reduce the impact of knocking, can more easily knock out the bottom material of the crucible, this design greatly reduces the operation of the operator and knocks the intensity, reduces the labor intensity of the operator, improves the work efficiency. In addition, since the upper end of the crucible is far greater than the lower end of the crucible, the bottom material of the crucible does not appear the problem of the blockage caused by the too large material block in the turning process. At the same time, since the stress of the straight wall of the crucible is far less than the stress of the R angle junction, the stress of the crucible is greatly reduced, thereby prolonging the service life of the crucible. The problem that the bottom material of the single crystal furnace crucible is knocked down in the prior art, and the small diameter of the lower end of the crucible leads to the difficulty of manual operation, low efficiency and easy damage of the crucible is solved. DRAWINGS

[0022] In order to more clearly illustrate the technical scheme in the embodiments of the present application or the prior art, the drawings needed to be used in the embodiments or the prior art description will be briefly introduced below. Obviously, the drawings in the following description are only some embodiments of the present application, and other drawings can also be obtained by those skilled in the art without creating labor.

[0023] Figure 1 It is a structure schematic side view of the auxiliary device of the utility model embodiment.

[0024] Figure 2 It is a structure schematic front view of the auxiliary device of the utility model embodiment.

[0025] Figure 3The structure schematic plan view of the placing assembly of the utility model embodiment.

[0026] Figure 4 The structure schematic plan view of the cover plate of the utility model embodiment.

[0027] 100 - mounting frame, 110 - first support rod, 120 - second support rod, 130 - cross beam, 140 - first cross rod, 150 - second cross rod, 160 - first connecting rib, 170 - second connecting rib, 190 - trundle support frame;

[0028] 200 - lifting mechanism, 210 - lifting assembly, 220 - hydraulic rod, 230 - connecting assembly, 232 - slide rail, 234 - sliding block, 235 - clamping joint;

[0029] 300 - overturning mechanism, 310 - mounting plate, 315 - clamping groove, 320 - driving assembly, 330 - placing assembly, 331 - clamp, 332 - cushion block, 333 - movable plate, 334 - second hinged shaft, 335 - limiting hole, 336 - limiter, 340 - cover plate, 341 - discharge port, 342 - first hinged shaft;

[0030] 400 - control mechanism. DETAILED DESCRIPTION

[0031] In the description of the utility model, it is understood that the orientation or positional relationship indicated by the terms "center", "longitudinal", "transverse", "length", "width", "thickness", "upper", "lower", "front", "rear", "left", "right", "vertical", "horizontal", "top", "bottom", "inner", "outer", "clockwise", "counterclockwise", "axial", "radial", "circumferential" is based on the orientation or positional relationship shown in the drawings, and is only for the convenience of describing the utility model and simplifying the description, and therefore cannot be understood as limiting the utility model.

[0032] The following disclosure provides many different embodiments or examples for implementing different structures of the utility model. In order to simplify the disclosure of the utility model, the components and settings of specific examples are described below. Of course, they are only examples, and the purpose is not to limit the utility model.

[0033] The embodiments of the utility model will be described in detail below with reference to the drawings.

[0034] Embodiment 1

[0035] The existing single crystal furnace crucible, the lower edge of the crucible is small, the workers will face greater difficulty when knocking the bottom material. And, due to the large size of the bottom material, the diameter of the crushed material is too large, which is easy to block the lower edge of the crucible, and the operator must intervene manually to ensure that the material block is separated smoothly, which greatly reduces the operation efficiency. At the same time, this operation method not only has low efficiency, but also is easy to damage the crucible and the transfer car. Due to the weight of the bottom material itself and the stress when the operator knocks, the lower edge of the crucible is easy to be damaged and cannot be reused.

[0036] In order to solve the above problems in the prior art, the embodiment provides a silicon core furnace crucible cleaning auxiliary device, which can realize a new single crystal furnace crucible bottom material knocking method, and is used for assisting the knocking work of the single crystal furnace crucible bottom material. The silicon core furnace crucible cleaning auxiliary device can improve the safety degree and operation efficiency of the operation process, and help to reduce the production cost. Please refer to Figures 1-4 The silicon core furnace crucible cleaning auxiliary device mainly comprises a mounting frame 100, a lifting mechanism 200 and a turnover mechanism 300.

[0037] The mounting frame 100 is the main supporting structure of the silicon core furnace crucible cleaning auxiliary device of the embodiment, and is mainly used for mounting and supporting other components. As shown in Figure 1 , Figure 2 The mounting frame 100 mainly comprises a first supporting rod 110, a second supporting rod 120 and a cross beam 130. The first supporting rod 110 and the second supporting rod 120 are arranged in parallel, and the first supporting rod 110 is used to arrange the lifting mechanism 200. At the same time, the cross beam 130 is arranged at the position between the upper ends of the first supporting rod 110 and the second supporting rod 120, and the cross beam 130 and the first supporting rod 110 and the second supporting rod 120 together enclose a protection space for the lifting mechanism 200 and the turnover mechanism 300 to work, and lift and turn the single crystal furnace crucible.

[0038] The lifting mechanism 200 is used to lift the height of the single crystal furnace crucible to facilitate its rotation and the knocking of the bottom material. The lifting mechanism 200 mainly comprises a lifting assembly 210, a hydraulic rod 220 and a connecting assembly 230. The lifting assembly 210 is a pneumatic cylinder, and the hydraulic rod 220 is arranged on the output end of the pneumatic cylinder. The lifting assembly 210 is arranged on the first support rod 110 near the upper portion, and the hydraulic rod 220 is arranged on the side of the first support rod 110 and is parallel to the first support rod 110. The hydraulic rod 220 can be extended and retracted in the direction of the first support rod 110. The connecting assembly 230 mainly comprises a sliding rail 232 and four sliding blocks 234. One side of the sliding rail 232 is connected with the first support rod 110, and four sliding blocks 234 are slidingly embedded on the side of the sliding rail 232 facing the second support rod 120. The end of the four sliding blocks 234 facing the second support rod 120 is provided with a clamping joint 235.

[0039] The turnover mechanism 300 is used to turn over the single crystal furnace crucible to make the upper end with a larger diameter face downward. The turnover mechanism 300 mainly comprises a mounting plate 310, a driving assembly 320, a placing assembly 330 and a fixing assembly. The mounting plate 310 is arranged on the connecting assembly 230. Four clamping grooves 315 are arranged on the side of the mounting plate 310 facing the first support rod 110. The four clamping grooves 315 are respectively in alignment with the clamping joints 235 on the four sliding blocks 234 to fixedly connect the mounting plate 310 and the sliding blocks 234 in a detachable manner. The fixed end of the driving assembly 320 is sleeved on the extendable part of the hydraulic rod 220. The driving assembly 320 mainly comprises a stepping motor penetrating through the mounting plate 310. Meanwhile, the placing assembly 330 is approximately in the shape of an octagonal prism and is hollow inside with an upper opening. The shape of the inner chamber of the placing assembly 330 is adapted to the single crystal furnace crucible to place the single crystal furnace crucible. The fixing assembly mainly comprises a cover plate 340. The cover plate 340 is approximately in the shape of a circular ring and is provided with a discharge port 341 in the middle for discharging the knocked-off furnace bottom silicon material. In one or more other embodiments, when different types of fixing assemblies are used, the discharge port 341 can also be arranged at other positions on the turnover mechanism 300. Meanwhile, the size of the cover plate 340 is adapted to the upper end of the single crystal furnace crucible and can abut against the upper end of the single crystal furnace crucible. The side of the cover plate 340 close to the first support rod 110 is hinged to the upper side of the placing assembly 330 through a first hinge shaft 342 and can be opened and closed. When closed, the cover plate 340 can limit the position of the single crystal furnace crucible during the rotation of the placing assembly 330 to relatively fix the single crystal furnace crucible and the placing assembly 330 and synchronously turn over them.

[0040] A specific working mode of the embodiment is as follows:

[0041] In use, first, open the cover plate 340, and place the single crystal furnace crucible into the placing assembly 330 through the transfer equipment; then, close the cover plate 340 to fix the single crystal furnace crucible relative to the placing assembly 330; then, lift the turnover mechanism 300 through the lifting mechanism 200; then, turn over the single crystal furnace crucible by 180° through the turnover mechanism 300; then, the staff can knock off the residual silicon material at the bottom of the crucible, and discharge the silicon material from the larger port at the upper part of the crucible through the discharge port 341, so as to avoid the blockage.

[0042] In the embodiment, the silicon core furnace crucible cleaning auxiliary device overturns the traditional single crystal furnace crucible bottom material knocking method. The lifting mechanism 200 on the mounting frame 100 is used to lift the crucible, and the turnover mechanism 300 is used to turn over the crucible. The fixing mechanism on the turnover mechanism 300 is used to fix the relative position of the crucible, and the discharge port 341 is used to discharge the knocked silicon material. The single crystal furnace crucible can be converted into a state of a larger upper port downward to knock the bottom material, so as to realize a new method of the whole single crystal furnace crucible overturning bottom material knocking. After the turnover is completed, the gravity of the crucible bottom material is used to reduce the impact force caused by knocking, so that the crucible bottom material can be knocked out more easily. This design greatly reduces the knocking force of the operator, reduces the labor intensity of the operator, and improves the work efficiency. In addition, since the upper port of the crucible has a larger diameter than the lower port, the blockage problem caused by the large material block during the turnover process will not occur. At the same time, since the stress on the straight wall of the crucible is much smaller than the stress on the R-angle connection, the stress on the crucible is greatly reduced, thereby prolonging the service life of the crucible. The problem that the manual operation is difficult, the efficiency is low, and the crucible is easily damaged due to the small diameter of the lower port of the crucible in the prior art is solved.

[0043] Specifically, in the embodiment, a first crossbar 140 is arranged at the bottom of the first support rod 110, the first crossbar 140 is arranged perpendicularly to the first support rod 110, and the middle of the first crossbar 140 is connected to the bottom end of the first support rod 110; and a second crossbar 150 is arranged at the bottom of the second support rod 120, the second crossbar 150 is arranged perpendicularly to the second support rod 120, and the middle of the second crossbar 150 is connected to the bottom end of the second support rod 120; by arranging the two sides symmetrical first crossbar 140 and the second crossbar 150, the stability of the mounting rack 100 is strengthened. Meanwhile, in the embodiment, four first connecting ribs 160 are arranged between the middle of the first support rod 110 and the two ends of the first crossbar 140, and between the middle of the second support rod 120 and the two ends of the second crossbar 150; and two second connecting ribs 170 are arranged between the middle of the crossbeam 130 and the middle of the first support rod 110, and between the middle of the crossbeam 130 and the middle of the second support rod 120; by arranging the first connecting rib 160 and the second connecting rib 170, the structural firmness of the mounting rack 100 is improved, and the service life thereof is prolonged. In addition, in the embodiment, a trundle support frame 190 is arranged at the bottom of each end of the first crossbar 140 and the second crossbar 150, the stability of the mounting rack 100 is further improved, and the bottom of the first crossbar 140 and the second crossbar 150 is prevented from being damaged by directly contacting the ground.

[0044] Specifically, in the embodiment, a first crossbar 140 is arranged at the bottom of the first support rod 110, the first crossbar 140 is arranged perpendicularly to the first support rod 110, and the middle of the first crossbar 140 is connected to the bottom end of the first support rod 110; and a second crossbar 150 is arranged at the bottom of the second support rod 120, the second crossbar 150 is arranged perpendicularly to the second support rod 120, and the middle of the second crossbar 150 is connected to the bottom end of the second support rod 120; by arranging the two sides symmetrical first crossbar 140 and the second crossbar 150, the stability of the mounting rack 100 is strengthened. Meanwhile, in the embodiment, four first connecting ribs 160 are arranged between the middle of the first support rod 110 and the two ends of the first crossbar 140, and between the middle of the second support rod 120 and the two ends of the second crossbar 150; and two second connecting ribs 170 are arranged between the middle of the crossbeam 130 and the middle of the first support rod 110, and between the middle of the crossbeam 130 and the middle of the second support rod 120; by arranging the first connecting rib 160 and the second connecting rib 170, the structural firmness of the mounting rack 100 is improved, and the service life thereof is prolonged. In addition, in the embodiment, a trundle support frame 190 is arranged at the bottom of each end of the first crossbar 140 and the second crossbar 150, the stability of the mounting rack 100 is further improved, and the bottom of the first crossbar 140 and the second crossbar 150 is prevented from being damaged by directly contacting the ground.

[0045] Specifically, the control mechanism 400 is arranged on the first support rod 110 in the embodiment, the control mechanism 400 is electrically connected with the lifting mechanism 200 and the turnover mechanism 300, and the working of the whole silicon core furnace crucible cleaning auxiliary device, including lifting and turnover of the crucible, can be controlled.

[0046] In one or more other embodiments, the driving assembly 320 can also include a stepping motor and a turbine speed reducer, so as to better control the rotation of the placing assembly 330.

[0047] The basic principle, main features and advantages of the present application are shown and described above. It should be understood by those skilled in the art that the present application is not limited by the above embodiments, and the above embodiments and descriptions in the specification are only preferred examples of the present application and are not intended to limit the present application. Without departing from the spirit and scope of the present application, various changes and improvements can be made to the present application, and these changes and improvements all fall within the scope of the present application. The scope of protection of the present application is defined by the appended claims and their equivalents.

Claims

1. A silicon core furnace crucible cleaning aid characterized by, The utility model relates to a single crystal furnace crucible placing device, which comprises a mounting frame (100), a lifting mechanism (200) arranged on the mounting frame (100), and a turnover mechanism (300) arranged on the lifting mechanism (200). The mounting frame (100) comprises at least a first support rod (110) and a second support rod (120); a crossbeam (130) is arranged between the first support rod (110) and the second support rod (120); and the lifting mechanism (200) is arranged on the first support rod (110). The bottom of the first support rod (110) is provided with a first crossbar (140); the bottom of the second support rod (120) is provided with a second crossbar (150). The middle part of the first support rod (110) and the two ends of the first crossbar (140) and the middle part of the second support rod (120) and the two ends of the second crossbar (150) are provided with first connecting ribs (160); and the middle part of the crossbeam (130) and the middle part of the first support rod (110) and the middle part of the second support rod (120) are provided with two second connecting ribs (170). The lifting mechanism (200) comprises at least a lifting assembly (210) arranged on the mounting frame (100), wherein the lifting assembly (210) is connected with a hydraulic rod (220); and the turnover mechanism (300) is arranged at the telescopic end of the hydraulic rod (220).

2. The silicon core furnace crucible cleaning aid of claim 1, wherein, The lifting mechanism (200) comprises at least a sliding rail (232), wherein a sliding block (234) is slidably arranged on the sliding rail (232), and a clamping joint (235) is arranged on the sliding block (234); the turnover mechanism (300) comprises at least a mounting plate (310), wherein a clamping groove (315) is arranged on the mounting plate (310); and the clamping joint (235) can be clamped in the clamping groove (315).

3. The silicon core furnace crucible cleaning aid of claim 2, wherein, The inner side wall of the placing assembly (330) is provided with a crucible clamp (331); the bottom of the inner side wall of the placing assembly (330) is provided with a cushion block (332); and the inner side surfaces of the crucible clamp (331) and the cushion block (332) are matched with the shape of the crucible of the single crystal furnace.

4. The silicon core furnace crucible cleaning aid of claim 3, wherein, ​ 5. The silicon core furnace crucible cleaning aid of claim 1, wherein, ​ 6. The silicon core furnace crucible cleaning aid of claim 1, wherein, ​ 7. The silicon core furnace crucible cleaning aid of claim 1, wherein, ​ 8. A silicon core furnace crucible cleaning aid as claimed in any one of claims 1 to 7, characterised in that, The placing assembly (330) is provided with a movable plate (333) on one side, one end of the movable plate (333) is hinged to the placing assembly (330) through a second hinge shaft (334).

9. The silicon core furnace crucible cleaning aid of claim 8, wherein, The other end of the movable plate (333) opposite to the second hinge shaft (334) is provided with a limiting hole (335), and a limiter (336) is rotatably arranged on the placing assembly (330), and the limiter (336) can be inserted into the limiting hole (335).

10. A silicon core furnace crucible cleaning aid as claimed in any one of claims 1 to 7, characterised in that, The fixing assembly is provided with at least a cover plate (340), the cover plate (340) is hinged above the placing assembly (330) through a first hinge shaft (342), and the discharge port (341) is arranged on the cover plate (340).

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