Auxiliary charging device and single crystal furnace feeder
By designing auxiliary charging devices for the feed hopper and guide pipe, the problems of material spillage and component damage during the charging process of the single crystal furnace were solved, achieving safe and reliable charging operations and reducing the risk of raw material waste and equipment damage.
Patent Information
- Application Number
- CN202423177184.7
- Authority / Receiving Office
- CN · China
- Patent Type
- Utility models(China)
- Current Assignee / Owner
- Filing Date
- 2024-12-23
- Publication Date
- 2025-11-07
- Estimated Expiration
- 2034-12-23
AI Technical Summary
Material spillage and component damage during the feeding process of a single crystal furnace lead to raw material waste and shortened equipment lifespan.
Design an auxiliary feeding device that includes a feed hopper and a guide pipe. The feed hopper has a large port, and the inner wall of the guide pipe is provided with protrusions to buffer the material and reduce spillage and impact.
It improves the safety and reliability of loading, reduces the risk of material spillage and component damage, and increases raw material utilization and equipment lifespan.
Smart Images
Figure CN223522722U_ABST
Abstract
Description
Technical Field
[0001] This utility model relates to the field of single crystal furnace feeder technology, and in particular to a device for auxiliary charging, a single crystal furnace feeder. Background Technology
[0002] A single crystal furnace is a device that melts polycrystalline materials such as polycrystalline silicon and grows single crystals using the Czochralski method. After each single crystal pulling operation, a feeder is used to add polycrystalline silicon material to the crucible inside the furnace, thereby enabling the single crystal furnace to pull multiple single crystal rods, improving production efficiency and saving production costs.
[0003] like Figure 1 As shown, during the secondary feeding of the single crystal furnace, the material 2 is first poured into the cylinder 4 of the single crystal furnace feeder through the barrel 1 to complete the feeding operation. Then, the loaded cylinder 4 is transferred to the crucible of the single crystal furnace. The lifting rod 3 is operated to separate the cone 5 at the lower end of the cylinder 4 from the cylinder 4 by a certain distance, and the material 2 falls into the crucible from the lower end of the cylinder 4 to complete the feeding.
[0004] Because the opening at the top of the cylinder 4 is relatively small and is usually blocked by a crossbeam 6, the space for loading material into the cylinder 4 is limited. This results in some material 2 scattering onto the feeding platform or the ground during the loading process, causing contamination of the raw materials, resulting in waste of raw materials, reduced material utilization, and increased production costs. Moreover, during the loading process, the impact force of the material 2 can easily hit the inner wall of the cylinder 4, the lifting rod 3, the cone 5 at the bottom of the cylinder 4, and other components, causing damage to these components and affecting the service life of the feeder. Utility Model Content
[0005] In view of this, one objective of this utility model is to provide a device for assisting in the charging process, so as to complete the charging operation more safely and reliably. Another objective of this utility model is to provide a single crystal furnace feeder including the above-mentioned device.
[0006] To achieve the above objectives, this utility model provides the following technical solution:
[0007] An apparatus for assisting in loading includes:
[0008] The feed hopper has a first port and a second port, with the first port being larger than the second port;
[0009] A feed tube, one end of which is connected to the second port, and the inner wall of the feed tube is provided with protrusions for buffering materials.
[0010] Optionally, in the above-described device, the protrusion is configured as a plate connected to the inner wall of the feed tube.
[0011] Optionally, in the device, the plate body is arranged obliquely to the inner wall of the material guide pipe, and the end of the plate body is farther from the second port than the root of the plate body.
[0012] Optionally, in the device, the protrusions are arranged in multiple along the material guiding direction of the material guide pipe, and at least two of the protrusions are arranged staggeredly along a direction perpendicular to the material guiding direction.
[0013] Optionally, in the device, the outer surface of the feeding hopper is provided with a support part for abutting against the end face of the barrel of the single crystal furnace feeder near the second port.
[0014] Optionally, in the device, the outer surface of the feeding hopper is provided with a hanger for hanging connection with the cross beam on the upper end of the barrel of the single crystal furnace feeder.
[0015] Optionally, in the device, the cross section of the material guide pipe is semicircular in profile.
[0016] Optionally, in the device, one end of the material guide pipe is detachably connected to the second port.
[0017] Optionally, in the device, the second port is provided with a first plug-in part, and one end of the material guide pipe is provided with a second plug-in part connected to the first plug-in part.
[0018] A single crystal furnace feeder comprises a barrel and the device for assisting feeding as disclosed in any one of the above.
[0019] The device for assisting feeding has the following beneficial effects:
[0020] In use, one end of the material guide pipe away from the feeding hopper is inserted into the upper end of the barrel of the single crystal furnace feeder, and then the material in the barrel is poured into the feeding hopper, and the material falls into the barrel along the feeding hopper and the material guide pipe to complete the feeding. The larger end of the feeding hopper, i.e. the first port, provides a larger space for feeding, so the material is not easy to scatter outside, thereby reducing the risk of falling material. When the material falls along the material guide pipe, it will not touch the inner wall of the barrel and the lifting rod, and the protrusions on the inner wall of the material guide pipe buffer the falling material, reducing the impact force when the material falls on the cone at the lower end of the barrel, and reducing the risk of the cone being damaged by the material. Therefore, the device for assisting feeding can more safely and reliably complete the feeding operation. BRIEF DESCRIPTION OF DRAWINGS
[0021] To more clearly illustrate the technical solutions in the embodiments of this utility model or the prior art, the drawings used in the description of the embodiments or the prior art will be briefly introduced below. Obviously, the drawings described below are only embodiments of this utility model. For those skilled in the art, other drawings can be obtained based on the provided drawings without creative effort.
[0022] Figure 1 This is a schematic diagram showing the usage status of a traditional single crystal furnace feeder.
[0023] Figure 2 This is a schematic diagram of the usage state of the single crystal furnace feeder provided in this embodiment of the utility model;
[0024] Figure 3 This is a perspective view of the device for assisting in loading provided in an embodiment of the present utility model;
[0025] Figure 4 yes Figure 3 A three-dimensional view of the feed hopper in the middle;
[0026] Figure 5 yes Figure 4 A cross-sectional view of the feed hopper shown;
[0027] Figure 6 yes Figure 3 A cross-sectional view of the feed tube in the middle.
[0028] The diagram is marked as follows:
[0029] 1. Barrel body; 2. Material; 3. Lifting rod; 4. Cylinder body; 5. Cone; 6. Crossbeam;
[0030] 700. Feed hopper; 701. Support unit; 702. Hanger; 703. First insertion part;
[0031] 800, feed tube; 801, protrusion; 802, second insertion part. Detailed Implementation
[0032] The technical solutions of the present utility model will be clearly and completely described below with reference to the accompanying drawings of the embodiments. Obviously, the described embodiments are only some embodiments of the present utility model, and not all embodiments. Based on the embodiments of the present utility model, all other embodiments obtained by those of ordinary skill in the art without creative effort are within the protection scope of the present utility model.
[0033] In the description of the application, the description of the terms "one embodiment", "some embodiments", "example", or "some examples" and the like means that the specific features, structures, materials or characteristics described in connection with the embodiment or example are included in at least one embodiment or example of the application. Moreover, the specific features, structures, materials or characteristics described can be combined in any appropriate manner in any one or more embodiments or examples. In addition, different embodiments or examples described in the specification and characteristics of different embodiments or examples can be combined and combined by those skilled in the art without contradiction.
[0034] In the description of the application, the relationship terms such as first and second are only used to distinguish one entity or operation from another entity or operation, and do not necessarily require or imply any such actual relationship or order between the entities or operations. Moreover, the terms "include", "contain" or any other variant thereof are intended to cover non-exclusive inclusion, so that the process, method, article or equipment including a series of elements not only includes those elements, but also includes other elements not explicitly listed or inherent to such process, method, article or equipment. Without more limitation, the element defined by the statement "including a" does not exclude the presence of another identical element in the process, method, article or equipment including the element.
[0035] Referring to Figures 2-6 The embodiment of the utility model provides a device for assisting loading, including feed hopper 700 and guide pipe 800, wherein, feed hopper 700 has opposite first port and second port, first port is greater than second port, one end of guide pipe 800 is connected with second port, the inner wall of guide pipe 800 is provided with the protrusion 801 for buffering material 2. The working principle of the device is that the one end of guide pipe 800 away from feed hopper 700 is inserted into the upper end of cylinder 4, then material 2 in bucket 1 is poured into feed hopper 700, material 2 falls into cylinder 4 along feed hopper 700 and guide pipe 800 and completes loading. The larger end of feed hopper 700, i.e. first port, provides larger space for loading, so material 2 is not easy to scatter outside, thereby reducing the risk of falling material. Material 2 does not touch the inner wall of cylinder 4 and lifting rod 3 when falling along guide pipe 800, and the protrusion 801 on the inner wall of guide pipe 800 buffers material 2 falling, reduces the impact force when material 2 falls on cone 5, and reduces the risk of cone 5 being damaged by material 2. As can be seen, the device for assisting loading of the utility model is beneficial to more safely and reliably complete the loading operation.
[0036] In some embodiments, the protrusion 801 can be provided as a plate body connected to the inner wall of the material guide pipe 800. The plate body structure is simple and easy to manufacture. Of course, the protrusion 801 can also be provided in other structural forms, for example, it can be provided in a rod body structure, a hemispherical structure, etc. The present application does not limit the structural form of the protrusion 801, as long as it can play a buffering role on the material 2 and reduce the impact force of the material 2.
[0037] In the case where the protrusion 801 is provided as a plate body, the protrusion 801 can be connected to the inner wall of the material guide pipe 800 in a cantilever form, so that the protrusion 801 can be elastically bent downward after being impacted by the falling material 2, thereby better playing a buffering role on the material 2. Of course, the protrusion 801 can also be provided as a structure that cannot be elastically bent, for example, in the case where the material guide pipe 800 is a circular pipe, the protrusion 801 is provided as a semicircular plate body, the arc profile of the plate body is fitted and fixedly connected to the inner wall of the material guide pipe 800. In this structure, the material 2 hitting the protrusion 801 cannot cause the protrusion 801 to elastically bend, but since the protrusion 801 causes the material 2 to change the direction of movement during falling, it can also play a buffering role on the material 2 and reduce the impact force of the material 2 on the cone 5.
[0038] In the case where the protrusion 801 is provided as a plate body, in some embodiments, the plate body can be provided inclined to the inner wall of the material guide pipe 800, and the end of the plate body is farther from the second port than the root of the plate body. It can be understood that the root of the plate body is the part where the protrusion 801 is connected to the inner wall of the material guide pipe 800, and the end of the plate body refers to the other end of the protrusion 801 relative to the root. The end of the plate body is farther from the second port than the root, so that the end of the plate body is inclined downward during the loading process, forming a structure similar to a slide, which can make the material 2 pass through the material guide pipe 800 faster, thereby improving work efficiency. Of course, in other embodiments, the plate body can also be provided perpendicular to the inner wall of the material guide pipe 800, which will increase the possibility of the material 2 remaining on the protrusion 801. In the case where the plate body is inclined to the inner wall of the material guide pipe 800, the included angle between the plate body and the cross section of the material guide pipe 800 can be provided as any value within the range of 10°-45°, for example, the included angle can be 20°, 25°, 30°, 40°, etc.
[0039] In some embodiments, the protrusion 801 can be provided as a plurality of protrusions distributed along the material guiding direction of the material guide pipe 800, and at least two protrusions 801 are staggered along the direction perpendicular to the material guiding direction. The material guiding direction of the material guide pipe 800 refers to the direction from the feeding hopper 700 to the end of the material guide pipe 800 away from the feeding hopper 700, and the protrusion 801 is arranged in multiple along the material guiding direction, which means more than one, so that it can play a multi-stage buffering role on the material 2. The two protrusions 801 are staggered along the direction perpendicular to the material guiding direction, which means that the two protrusions 801 are respectively connected to the inner walls of the opposite sides of the material guide pipe 800, as shown inFigure 2 Some of the protrusions 801 are connected to the inner wall of the left side of the material guide pipe 800, and some of the protrusions 801 are connected to the inner wall of the right side of the material guide pipe 800, so as to stagger in the direction perpendicular to the material guide direction. It is easy to understand that, in order to improve the overall buffering effect, the projection of the staggered protrusions 801 in the material guide direction should occupy the entire cross section of the material guide pipe 800 as much as possible. In some embodiments, the protrusions 801 distributed along the material guide direction can be staggered alternately in turn, for example, the protrusions 801 of odd-numbered positions are connected to the inner wall of the left side of the material guide pipe 800, and the protrusions 801 of even-numbered positions are connected to the inner wall of the right side of the material guide pipe 800.
[0040] In some embodiments, the outer surface of the feeding hopper 700 can be provided with a support part 701 for abutting with the end face of the barrel 4 of the single crystal furnace feeder. After the material guide pipe 800 of the device is inserted into the barrel 4, the support part 701 of the feeding hopper 700 is placed on the end face of the upper end of the barrel 4, so that the device can be more stably positioned, thereby preventing accidental scattering of the material 2 to the outside during the feeding process. The support part 701 can be a continuously extending rib structure, or a structure discontinuously extending along the circumference of the feeding hopper 700.
[0041] In some embodiments, the outer surface of the feeding hopper 700 can be provided with a hanging part 702 for hanging connection with the cross beam 6 of the upper end of the barrel 4 of the single crystal furnace feeder. After the material guide pipe 800 of the device is inserted into the barrel 4, the hanging part 702 of the feeding hopper 700 is hung on the cross beam 6 of the upper end of the barrel 4, so that the device can be more stably positioned, thereby preventing accidental scattering of the material 2 to the outside during the feeding process. It is easy to understand that the feeding hopper 700 can be provided with one of the support part 701 and the hanging part 702, or both.
[0042] In some embodiments, the cross section of the material guide pipe 800 can be semicircular in shape. The barrel 4 is usually cylindrical, and therefore, in the case where the cross beam 6 is provided at the upper end of the barrel 4, a semicircular space is left for the material guide pipe 800 to enter the barrel 4. By setting the cross section of the material guide pipe 800 as semicircular, the entering space at the upper end of the barrel 4 can be more fully utilized. Referring to Figure 4 and Figure 5 , the cross section of the feeding hopper 700 can be semicircular in shape, and the end face of the larger end of the feeding hopper 700, i.e. the first port, can be designed as an inclined surface, so that the side of the end face away from the hanging part 702 is inclined to the direction of the second port. In this way, during the feeding process, the barrel 1 is placed on the lower side of the first port to pour the material, as shown in Figure 2 , the higher side of the first port can better prevent accidental scattering of the material 2 to the outside.
[0043] Referring toFigure 5 And Figure 6 In some embodiments, one end of the material guide pipe 800 can be detachably connected with the second port. The feeding hopper 700 and the material guide pipe 800 are arranged in a detachable connection, so as to facilitate the respective storage after use, and save the storage space. The material guide pipe 800 bears the impact force of the material 2 to protect other components, and therefore the material guide pipe 800 may reach the scrap condition earlier than the feeding hopper 700. Since the feeding hopper 700 and the material guide pipe 800 are arranged in a detachable connection, the material guide pipe 800 can be replaced alone, which is conducive to reducing the replacement cost of the device. Of course, in other embodiments, the feeding hopper 700 and the material guide pipe 800 can also be arranged in an integrated structure, or fixedly connected together by welding and the like and cannot be detached.
[0044] In some embodiments, the second port can be provided with a first plug-in part 703, and one end of the material guide pipe 800 can be provided with a second plug-in part 802 connected with the first plug-in part 703, that is, the feeding hopper 700 and the material guide pipe 800 can be detachably connected by plug-in. Figure 5 And Figure 6 In the exemplary embodiment, the first plug-in part 703 is arranged in a plug structure, and the second plug-in part 802 is arranged in a slot structure. In other embodiments, the second plug-in part 802 can be arranged in a plug structure, and the first plug-in part 703 can be arranged in a slot structure, which is not limited in the utility model.
[0045] The utility model also provides a single crystal furnace material feeding device, the single crystal furnace material feeding device includes cylinder 4 and the device for assisting loading disclosed in above-mentioned embodiments. Since the device for assisting loading disclosed in above-mentioned embodiments has above-mentioned technical effects, the single crystal furnace material feeding device with the device also has above-mentioned technical effects, which will not be described here.
[0046] Each embodiment in the specification is described in a progressive manner, and each embodiment focuses on the difference from other embodiments. The same or similar parts between each embodiment can be referred to each other.
[0047] The above description of the disclosed embodiments enables a person skilled in the art to implement or use the utility model. Various modifications of these embodiments will be apparent to those skilled in the art, and the general principles defined herein can be implemented in other embodiments without departing from the spirit or scope of the utility model. Therefore, the utility model will not be limited to these embodiments shown herein, but will conform to the widest scope consistent with the principles and novel features disclosed herein.
Claims
1. A device for assisting loading, characterized in that, The device comprises: a feeding hopper having opposite first and second ports, the first port being larger than the second port; a material guide pipe, one end of the material guide pipe being connected to the second port, and an inner wall of the material guide pipe being provided with protrusions for buffering materials.
2. The apparatus of claim 1, wherein, The protrusions are provided as plate bodies connected to the inner wall of the material guide pipe.
3. The apparatus of claim 2, wherein, The plate bodies are arranged obliquely to the inner wall of the material guide pipe, and the distal ends of the plate bodies are farther from the second port than the proximal ends of the plate bodies.
4. The apparatus of claim 1, wherein, The protrusions are arranged in multiple along the material guiding direction of the material guide pipe, and at least two of the protrusions are arranged staggeredly along a direction perpendicular to the material guiding direction.
5. The apparatus of claim 1, wherein, An outer surface of the feeding hopper is provided with a support portion near the second port for abutting against an end surface of a barrel of a single crystal furnace feeder.
6. The apparatus of claim 1, wherein, An outer surface of the feeding hopper is provided with a hanger for hanging connection with a cross beam on an upper end of the barrel of the single crystal furnace feeder.
7. The apparatus of claim 1, wherein, A cross section of the material guide pipe is semicircular in profile.
8. The apparatus of any one of claims 1-7, wherein, One end of the material guide pipe is detachably connected to the second port.
9. The apparatus of claim 8, wherein, The second port is provided with a first plug-in portion, and one end of the material guide pipe is provided with a second plug-in portion connected to the first plug-in portion.
10. A material charging device for a single crystal furnace, characterized by comprising: The device comprises a barrel and a device for assisting feeding as claimed in any one of claims 1-9.