Single crystal charging bucket cone face beam structure

Abstract

This invention discloses a conical beam structure for a single-crystal feeding hopper, relating to the technical field of conical beam structures for single-crystal feeding hoppers. It includes a feeding hopper body with a guide structure at its top. This guide structure includes a ramp component, which automatically guides the feeding hopper body during lifting, preventing collisions with the upper single-crystal furnace sub-chamber. This eliminates the need for manual support, saving manpower and effectively protecting the feeding hopper body. The diameter of the top of the feeding hopper body is smaller than the diameter of the sub-chamber (the specific diameter can be set according to different manufacturers). When the flange on the feeding hopper body enters the sub-chamber, the guide structure cooperates with the inner wall of the sub-chamber to achieve precise positioning, stabilizing the feeding hopper body's posture and fundamentally avoiding the risk of collision with the lower flange. The top of the feeding hopper body does not need to be removed during filling, reducing process time.

Description

Technical Field

[0001] This invention relates to the technical field of conical beam structures for single-crystal feeding barrels, specifically a conical beam structure for single-crystal feeding barrels. Background Technology

[0002] In the production of monocrystalline silicon, the feeding tank is one of the commonly used pieces of equipment. However, the feeding tanks in the current technology have many problems, which affect production efficiency and equipment safety:

[0003] 1. Collision Risk and Labor Cost: During the lifting of the charging bucket, due to the lack of an effective guiding structure, the charging bucket is prone to colliding with the upper single crystal furnace auxiliary chamber, thereby damaging the charging bucket. To avoid such collisions, manual support is usually required, which is not only labor-intensive but also inconvenient to operate. The instability of manual operation may also increase the risk of collisions.

[0004] 2. Inconvenient disassembly and assembly and wasted time: The traditional top guide structure of the feeding tank needs to be removed during filling and reinstalled after filling, which makes the process cumbersome. Each filling requires additional disassembly and assembly time, reducing the continuity of production. At the same time, frequent disassembly and assembly may also cause wear and tear on the feeding tank body.

[0005] 3. Unreasonable production parameters lead to excessively long production cycles: In the existing equipment, the trigger parameter for the automatic lifting of the tungsten wire rope is set at the seed crystal position of 2450mm. This parameter setting results in a late start time for the automatic lifting of the tungsten wire rope, requiring additional waiting time for each batch of production. If other manufacturers have higher parameters due to equipment limitations (such as higher than 2450mm), the waiting time will be even longer, severely limiting the improvement of production efficiency.

[0006] Therefore, those skilled in the art have provided a single-crystal feeding barrel conical beam structure to solve the problems mentioned in the background art. Summary of the Invention

[0007] The purpose of this invention is to provide a conical beam structure for a single-crystal feeding bucket to solve the problems of easy collision when the feeding bucket is lifted, the need to remove the top structure when filling, and low efficiency caused by unreasonable production parameters in the prior art, thereby achieving time saving and efficiency improvement.

[0008] To achieve the above objectives, the present invention provides the following technical solution:

[0009] A conical crossbeam structure for a single-crystal feeding bucket includes a feeding bucket body. A guide structure is provided at the top of the feeding bucket body. The guide structure includes a ramp component. The ramp component is used to guide the movement direction of the feeding bucket body during lifting, avoiding collision with the sub-chamber of the single-crystal furnace above. The top of the feeding bucket body has a diameter smaller than the diameter of the sub-chamber (the specific diameter can be set according to different manufacturers). When the flange on the feeding bucket body enters the sub-chamber, the guide structure can cooperate with the inner wall of the sub-chamber to achieve precise positioning. By stabilizing the posture of the feeding bucket body, the risk of collision with the lower flange is avoided from the root.

[0010] As a further aspect of the present invention, the top of the guide structure does not need to be removed during material filling, saving the time consumed by the traditional process of disassembling and assembling the guide structure.

[0011] As a further aspect of the present invention, the guide structure can achieve parameter optimization, adjusting the seed crystal position of the system automatically lifting the tungsten wire rope from the original 2450mm to 1600mm (in other scenarios, it can be further reduced according to actual needs, such as some manufacturers can adjust it to an even lower position), significantly shortening the waiting time for the tungsten wire rope to be automatically lifted in a single batch of production.

[0012] As a further embodiment of the present invention, the guide structure further includes a support component fixed to the top of the feeding barrel body, and the ramp component is mounted on the support component.

[0013] As a further embodiment of the present invention, the slope angle of the slope component is 30°-60°.

[0014] As a further embodiment of the present invention, the feeding barrel body and the supporting component are connected by bolts.

[0015] As a further embodiment of the present invention, the ramp component is made of a wear-resistant material, which is selected from PTFE and stainless steel, and can be chosen according to the company's financial capacity.

[0016] As a further embodiment of the present invention, the guide structure also includes limiting components disposed on both sides of the ramp component, the limiting components being used to restrict the movement direction of the feeding barrel body; the limiting components are made of PTFE or stainless steel, and can be selected according to the company's financial capacity.

[0017] As a further embodiment of the present invention, the top of the feeding barrel body is provided with a mounting surface for installing a guide structure.

[0018] As a further embodiment of the present invention, the surface of the ramp component is provided with an anti-slip coating.

[0019] As a further aspect of the present invention, the height of the guide structure can be adjusted according to actual needs.

[0020] As a further embodiment of the present invention, the guide structure can be hollow or solid, which can be selected according to the company's financial capacity.

[0021] Compared with the prior art, the beneficial effects of the present invention are:

[0022] 1. Avoid collisions and save manpower: By setting a guide structure with a ramp component on the top of the feeding barrel body, the ramp component can guide the movement direction of the feeding barrel body when it is lifted, avoiding collisions with the sub-chamber component of the single crystal furnace above. The top of the feeding barrel body has a diameter smaller than that of the sub-chamber (the specific diameter can be set according to different manufacturers). When the flange on the feeding barrel body enters the sub-chamber, the guide structure can cooperate with the inner wall of the sub-chamber to achieve precise positioning. By stabilizing the posture of the feeding barrel body, the risk of collision with the lower flange is avoided from the root. No manual support is required, saving manpower, while effectively protecting the feeding barrel body and extending its service life.

[0023] 2. No disassembly required, improving efficiency: The guide structure replaces the original PTFE crossbeam, eliminating the need to remove the top setting during filling, simplifying the process, reducing production time, improving production continuity, and reducing equipment wear caused by frequent disassembly.

[0024] 3. Parameter optimization and efficiency improvement: The guide structure optimizes parameters, changing the seed crystal position of the automatic tungsten wire rope lifting system from 2450mm to 1600mm (other manufacturers can further reduce it to a lower position according to actual needs), triggering the automatic lifting of the tungsten wire rope earlier, shortening the overall cycle of monocrystalline silicon production and improving production efficiency.

[0025] 4. Flexible materials and structure: The materials of each component of the guide structure can be selected according to the company's financial capacity. The structure can be hollow or solid to adapt to the needs and production scenarios of different companies, thus lowering the entry barrier for companies.

[0026] 5. Enhanced stability: The surface of the ramp component is coated with an anti-slip coating to prevent the feeding bucket from slipping during movement; a limiting component is set to further ensure the accuracy of guidance; the height of the guide structure is adjustable to adapt to different specifications of single crystal furnace auxiliary chambers and operating scenarios.

[0027]

[0028] The following optimizations were made to this embodiment:

[0029] (1) After the crystal rod is removed, the seed crystal position is lowered to 500mm, the chuck is removed and replaced with a hook.

[0030] (2) Move the feeding cylinder trolley to directly below the hook so that the hook is connected to the connector on the feeding cylinder body.

[0031] (3) When lifting the tungsten wire rope, the original process requires the material cylinder to be rotated back to the initial position of 2450mm, and this process requires manual support to prevent collision. Only after the flange enters the sub-chamber can the material cylinder be rotated back to enter automation. After the invention is optimized, the material cylinder can be rotated back to enter automation directly after the hook is connected to the connector, without the need for manual support. The initial position of the material cylinder rotation is adjusted to 1600mm (which can be flexibly changed according to the actual scenario).

[0032] (4) When the barrel rotates back to the target lifting position of 3950mm, the tungsten wire rope stops rising and the auxiliary chamber begins to rotate.

[0033] (5) Set the initial safe position of the barrel lifting to 2600mm. After the feeding is completed, when the seed crystal position is raised to 2600mm, you can click the barrel lifting button to enter the automated process.

[0034] (6) When the barrel is lifted to the target position of 4300mm (i.e. the seed crystal position), the tungsten wire rope stops lifting and the isolation valve is closed.

[0035] (7) Set the target position for the barrel to descend after it is lifted out to 1600mm. After the pressure is maintained, the secondary chamber will automatically rise to the upper limit. Then the secondary chamber will rotate out to the limit position and the barrel will begin to descend to 1600mm.

[0036] (8) Manually disconnect the hook from the connector, remove the feeding cart and push in a new feeding cylinder, and repeat the above operation until feeding is completed.

[0037] 6. The original manual support process took 100 seconds. After parameter optimization, the waiting time for a single batch of production can be shortened by 100 seconds. Based on 300 batches per day, this can save 500 minutes per day, accumulating to 3041 hours per year. This translates to a daily saving of 8.3 hours of manpower, resulting in an increased economic benefit of RMB 153,000 per year based on the company's labor costs. Attached Figure Description

[0038] Figure 1 This is a schematic diagram of a conical beam structure for a single-crystal feeding barrel.

[0039] Figure 2 This is another structural schematic diagram of a single-crystal feeding barrel with a conical crossbeam structure.

[0040] Figure 3 This is a cross-sectional view of a conical beam structure for a single-crystal feeding barrel.

[0041] Figure 4 This is another cross-sectional view of a conical beam structure for a single-crystal feeding barrel.

[0042] In the diagram: 1. Feeding tank body; 2. Guide structure; 201. Inclined component; 202. Support component; 203. Limiting component. Detailed Implementation

[0043] Please see Figures 1-4 In this embodiment of the invention, a conical beam structure for a single-crystal feeding barrel includes a feeding barrel body 1. A guide structure 2 is provided at the top of the feeding barrel body 1. The guide structure 2 includes a ramp component 201 and a support component 202 fixed to the top of the feeding barrel body 1. The ramp component 201 is mounted on the support component 202. The ramp angle of the ramp component 201 is 30°-60°. The feeding barrel body 1 and the support component 202 are connected by bolts. The ramp component 201 is made of wear-resistant material. The guide structure 2 also includes limiting components 203 on both sides of the ramp component 201. The top of the feeding barrel body 1 has an mounting plane for installing the guide structure 2. The surface of the ramp component 201 is coated with an anti-slip coating. The height of the guide structure 2 can be adjusted according to actual needs.

[0044] The working principle of this invention is as follows: When the feeding tank body 1 is lifted, it moves upward under the action of the lifting force. If a collision is possible, the ramp component 201 guides the movement of the feeding tank body 1, causing it to move along the ramp of the ramp component 201, thereby avoiding collision with the component below. The limiting component 203 restricts the movement direction of the feeding tank body 1, preventing it from deviating from the correct path. The anti-slip coating ensures stable movement of the feeding tank body 1 on the ramp component 201.

[0045] It will be apparent to those skilled in the art that the present invention is not limited to the details of the exemplary embodiments described above, and that the invention can be implemented in other specific forms without departing from its spirit or essential characteristics. Therefore, the embodiments should be considered illustrative and non-limiting in all respects, and the scope of the invention is defined by the appended claims rather than the foregoing description. Thus, all variations falling within the meaning and scope of equivalents of the claims are intended to be included within the present invention, and no reference numerals in the claims should be construed as limiting the scope of the claims.

[0046] Furthermore, it should be understood that although this specification describes embodiments, not every embodiment contains only one independent technical solution. This narrative style is merely for clarity. Those skilled in the art should consider the specification as a whole, and the technical solutions in each embodiment can also be appropriately combined to form other embodiments that can be understood by those skilled in the art.

Claims

1. A single-crystal feeding barrel conical beam structure, comprising a feeding barrel body (1), characterized in that, The top of the feeding barrel body (1) is provided with a guide structure (2), which includes a ramp component (201).

2. The single-crystal feeding barrel conical beam structure according to claim 1, characterized in that, The guide structure (2) also includes a support component (202) fixed to the top of the feeding barrel body (1), and the ramp component (201) is installed on the support component (202).

3. The single-crystal feeding barrel conical beam structure according to claim 1, characterized in that, The ramp angle of the ramp component (201) is 30°-60°.

4. The conical beam structure of a single-crystal feeding barrel according to claim 1, characterized in that, The feeding barrel body (1) and the support component (202) are connected by bolts.

5. The conical beam structure of a single-crystal feeding barrel according to claim 1, characterized in that, The ramp component (201) is made of a wear-resistant material selected from PTFE and stainless steel.

6. The conical beam structure of a single-crystal feeding barrel according to claim 1, characterized in that, The guide structure (2) also includes limiting components (203) disposed on both sides of the ramp component (201); the limiting components (203) are made of PTFE or stainless steel.

7. The single-crystal feeding barrel conical beam structure according to claim 1, characterized in that, The top of the feeding barrel body (1) is provided with an installation plane for installing the guide structure.

8. The conical beam structure of a single-crystal feeding barrel according to claim 1, characterized in that, The surface of the ramp component (201) is provided with an anti-slip coating.

9. The conical beam structure of a single-crystal feeding barrel according to claim 1, characterized in that, The height of the guide structure (2) can be adjusted according to actual needs.

10. The conical beam structure of a single-crystal feeding barrel according to claim 1, characterized in that, The guide structure (2) is either hollow or solid.

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