Silicon material conveying device in crystalline silicon material production

Abstract

The utility model provides a silicon material conveying device in crystalline silicon material production, which comprises a front-end processing device, a rear-end processing device and a rear-end processing device, the front-end processing device comprises a first processing bin and a first screening plate, the first processing bin is respectively provided with an interception bin and an extension cavity, and the first screening plate is arranged between the interception bin and the extension cavity; the conveying belt penetrates through the first treatment bin from the extension cavity; the rear-end treatment equipment comprises a second treatment bin and a second screening plate arranged in the second treatment bin; and the conveying belt conveys the materials into the second treatment bin from one end of the front-end treatment equipment. In the conveying process, the head end and the tail end are subjected to corresponding screening treatment, primary screening treatment on the particle size of silicon materials is completed, the uniformity of the particle size is improved, and the screening difficulty of core screening equipment is reduced.

Description

Technical Field

[0001] The utility model belongs to the technical field of silicon material processing, and in particular relates to a silicon material conveying device in the production of crystalline silicon materials. Background Art

[0002] During the processing, crystalline silicon materials will undergo grinding, calcination and other processes. In order to improve the final product quality of crystalline silicon materials, the silicon materials that form the crystalline silicon materials need to be screened multiple times to achieve the appropriate particle size requirements.

[0003] The screening structures in the prior art are mostly concentrated at the back end of grinding and crushing. Due to the high particle size control requirements, the separation structure of the screening equipment required is complex and the equipment investment cost is also high. In the process of transporting the grinding equipment to the screening structure, a simple conveyor belt structure is used for transportation, and there is no integrated screening structure for pre-screening to reduce the screening difficulty of the back-end screening equipment, thereby reducing the complexity of the equipment. Utility Model Content

[0004] The utility model provides a silicon material conveying device in the production of crystalline silicon materials, aiming to solve the problem that in the process of conveying from grinding equipment to a screening structure, there is no integrated screening structure to perform pre-screening to reduce the screening difficulty of a rear-end screening device.

[0005] The utility model is implemented as follows: a silicon material conveying device in the production of crystalline silicon material comprises:

[0006] A front-end processing device, the front-end processing device comprises a first processing chamber and a first screening plate, the first processing chamber is provided with a retaining chamber and an extension chamber respectively, and the first screening plate is arranged between the retaining chamber and the extension chamber;

[0007] a conveyor belt extending from the chamber through the first processing chamber;

[0008] The back-end processing equipment comprises a second processing bin and a second screening plate arranged inside the second processing bin; the conveyor belt transports the material from one end of the front-end processing equipment to the second processing bin.

[0009] Preferably, a first vibration bed structure is provided below the first processing chamber; the first vibration bed structure comprises a first bottom plate, a first spring member and a first vibration motor;

[0010] The bottom of the first processing chamber is connected to the first bottom plate through a first spring member, and the first vibration motor is arranged at the bottom of the first processing chamber.

[0011] Preferably, a second vibration bed structure is provided below the second processing chamber; the second vibration bed comprises a first spring member, a second bottom plate and a second vibration motor provided below the second screening plate;

[0012] The second processing chamber is connected to the second bottom plate through a second spring member.

[0013] Preferably, the second processing bin is divided into a separation bin and a collection area by a second sieve plate, and after the material transported by the conveyor belt slides into the separation bin, the tiny particles pass through the second sieve plate and reach the collection area.

[0014] Preferably, a collecting tank is provided in the collecting area.

[0015] Preferably, the separation bin is provided with a discharge port on a side wall away from the front-end processing equipment.

[0016] Preferably, the second screen plate is arranged inclined, and the speed of the material is accelerated along the inclined surface from the end of the second screen plate away from the discharge port to the end close to the discharge port.

[0017] Compared with the prior art, the embodiments of the present application have the following beneficial effects:

[0018] After the material in the silicon material conveying device in the production of crystalline silicon materials provided by the utility model reaches the inside of the first processing bin, the first screening plate will intercept the material that does not meet the particle size requirements in the interception bin, and the material that meets the requirements will pass through the first screening plate and reach the conveyor belt in the extension cavity, and the conveyor belt will deliver the material that passes through the first screening plate to the back-end processing equipment, and the tiny particles in the back-end processing equipment will pass through the second screening plate and leave the second processing bin; the finished material leaves the conveying equipment from the second processing bin separation bin, and completes a screening process on the particle size of the silicon material by performing corresponding screening processes at both ends during the conveying process, thereby improving the uniformity of the particle size and reducing the screening difficulty of the core screening equipment. BRIEF DESCRIPTION OF THE DRAWINGS

[0019] Figure 1 The utility model is a schematic structural diagram of a silicon material conveying device in the production of crystalline silicon material.

[0020] Figure 2 The utility model provides a schematic diagram of the structure of front-end processing equipment and back-end processing equipment of a silicon material conveying device in the production of crystalline silicon materials.

[0021] Figure 3 The utility model provides a schematic diagram of the structure of a front-end processing device of a silicon material conveying device in the production of crystalline silicon materials.

[0022] Figure 4 It is a structural schematic diagram of the middle and back-end processing equipment of a silicon material conveying device in the production of crystalline silicon materials provided by the utility model.

[0023] Figure 5The utility model provides a schematic structural diagram of the material conveying direction of a silicon material conveying device in the production of crystalline silicon materials.

[0024] Description of reference numerals:

[0025] 100, front-end processing equipment; 110, first processing chamber; 111, interception chamber; 112, extension chamber; 113, waste outlet; 120, first screening plate; 130, first bottom plate; 140, first spring member;

[0026] 200. Conveyor belt;

[0027] 300, back-end processing equipment; 310, second processing chamber; 311, separation chamber; 312, collection area; 313, discharge port; 320, second screening plate; 330, discharge guide plate; 340, first spring member; 350, second bottom plate; 360, collection trough. DETAILED DESCRIPTION

[0028] Unless otherwise defined, all technical and scientific terms used herein have the same meaning as those commonly understood by technicians in the technical field of this application; the terms used in the specification of the application herein are only for the purpose of describing specific embodiments and are not intended to limit this application; the terms "including" and "having" and any variations thereof in the specification and claims of this application and the above-mentioned drawings are intended to cover non-exclusive inclusions. The terms "first", "second", etc. in the specification and claims of this application or the above-mentioned drawings are used to distinguish different objects, not to describe a specific order.

[0029] Reference to "embodiments" herein means that a particular feature, structure, or characteristic described in conjunction with the embodiments may be included in at least one embodiment of the present application. The appearance of the phrase in various locations in the specification does not necessarily refer to the same embodiment, nor is it an independent or alternative embodiment that is mutually exclusive with other embodiments. It is explicitly and implicitly understood by those skilled in the art that the embodiments described herein may be combined with other embodiments.

[0030] The present invention provides a silicon material conveying device for producing crystalline silicon materials. Figure 1-Figure 5 As shown, the silicon material conveying device in the production of crystalline silicon material comprises:

[0031] A front-end processing device 100, the front-end processing device 100 comprises a first processing chamber 110 and a first screening plate 120, the first processing chamber 110 is provided with a retaining chamber 111 and an extension chamber 112, and the first screening plate 120 is arranged between the retaining chamber 111 and the extension chamber 112;

[0032] A conveyor belt 200, wherein the conveyor belt 200 passes through the first processing chamber 110 from the extension chamber 112;

[0033] A back-end processing device 300, wherein the back-end processing device 300 includes a second processing chamber 310 and a second screening plate 320 disposed inside the second processing chamber 310;

[0034] After the material reaches the first processing bin 110, the first screening plate 120 will retain the material that does not meet the particle size requirements in the retention bin 111, and the material that meets the requirements will pass through the first screening plate 120 to the conveyor belt 200 in the extension cavity 112, and the conveyor belt 200 will deliver the material that meets the requirements to the back-end processing equipment 300, and the tiny particles in the back-end processing equipment 300 will pass through the second screening plate 320 and leave the second processing bin 310; the finished material finally completes the transportation work between the front-end processing equipment 100 and the back-end processing equipment 300;

[0035] In the present application, the front-end processing device 100 is mainly used to remove large particles of materials, while the back-end processing device 300 is used to remove small particles of materials. There are few materials with different particle sizes in the silicon material. By separating the corresponding particles in sections during the transportation process, the purity of the material can be improved during the transportation process.

[0036] The first processing bin 110 is mounted on a first vibrating bed structure, and the second processing bin 310 is arranged on a second vibrating bed structure; the first vibrating bed structure and the second vibrating bed structure are both prior art; the first vibrating bed structure and the second vibrating bed generate vibrations to accelerate the material separation effect of the first screening plate 120 and the second screening plate 320;

[0037] As a preferred implementation in this embodiment, the first vibration bed structure includes a first bottom plate 130, a first spring member 140 and a first vibration motor; the bottom of the first processing chamber 110 is connected to the first bottom plate 130 through the first spring member 140, and the first vibration motor is arranged at the bottom of the first processing chamber 110, and the vibration generated by the first vibration motor drives the front-end processing device 100 to vibrate as a whole;

[0038] In this embodiment, the extension chamber 112 is arranged in the middle of the first processing chamber 110, and a bottom plate is further arranged at one end of the extension chamber 112 away from the retaining chamber 111. The first vibration motor is arranged at the end surface of the bottom plate away from the extension chamber 112. The purpose of setting the extension chamber 112 here is to provide a through area for the conveyor belt 200, and the cross-sectional area of ​​the extension chamber 112 is larger than the cross-sectional area of ​​the conveyor belt 200.

[0039] The end of the interception bin 111 away from the back-end processing equipment 300 is provided with a waste outlet 113 for waste discharge. When the waste reaches the waste outlet 113 under the action of vibration, the material will slide into the designated collection equipment;

[0040] As a preferred implementation in this embodiment, the second processing chamber 310 is divided into a separation chamber 311 and a collection area 312 by a second screening plate 320; wherein the portion of the second screening plate 320 that is close to the front-end processing device 100 and is not provided with a screen hole is the equipment area, and a second vibration motor is provided below the equipment area;

[0041] The second vibration bed includes a first spring member 340, a second bottom plate 350 and a second vibration motor disposed below the second screening plate 320; the second processing bin 310 is connected to the second bottom plate 350 via a second spring member 360. To speed up the sliding speed of the logistics, the second screening plate 320 is arranged tilted to facilitate the rapid exit of the material from the discharge port 313 provided on the side wall of the separation bin 311;

[0042] The collecting area 312 is provided with a collecting trough 360 , and the collecting trough 360 collects the tiny particles removed by the second screening plate 320 , thereby improving the final purity of the finished material.

[0043] It should be noted that, for the above-mentioned embodiments, for the sake of simplicity, they are all described as a series of action combinations, but those skilled in the art should know that the utility model is not limited by the described action sequence, because according to the utility model, some steps may be performed in other sequences or simultaneously. Secondly, those skilled in the art should also know that the embodiments described in the specification are all preferred embodiments, and the actions and modules involved are not necessarily required by the utility model.

[0044] The above embodiments are only used to illustrate the technical solutions of the utility model, rather than to limit the protection scope of the utility model. Obviously, the described embodiments are only some embodiments of the utility model, rather than all embodiments. Based on these embodiments, all other embodiments obtained by ordinary technicians in this field without making creative work are within the scope of protection of the utility model. Although the utility model has been described in detail with reference to the above embodiments, ordinary technicians in this field can still combine, add, delete or make other adjustments to the features in the various embodiments of the utility model according to the circumstances without conflict, without making creative work, so as to obtain different other technical solutions that do not deviate from the concept of the utility model in essence, and these technical solutions also belong to the scope of protection of the utility model.

Claims

1. A silicon material conveying device in the production of crystalline silicon material, characterized in that: include: A front-end processing device, the front-end processing device comprises a first processing chamber and a first screening plate, the first processing chamber is provided with a retaining chamber and an extension chamber respectively, and the first screening plate is arranged between the retaining chamber and the extension chamber; a conveyor belt extending from the chamber through the first processing chamber; The back-end processing equipment comprises a second processing bin and a second screening plate arranged inside the second processing bin; the conveyor belt transports the material from one end of the front-end processing equipment to the second processing bin.

2. The silicon material conveying device in the production of crystalline silicon material according to claim 1, characterized in that: A first vibration bed structure is provided below the first processing chamber; the first vibration bed structure comprises a first bottom plate, a first spring member and a first vibration motor; The bottom of the first processing chamber is connected to the first bottom plate through a first spring member, and the first vibration motor is arranged at the bottom of the first processing chamber.

3. The silicon material conveying device in the production of crystalline silicon material according to claim 2, characterized in that: A second vibration bed structure is provided below the second processing chamber; the second vibration bed comprises a first spring member, a second bottom plate and a second vibration motor provided below the second screening plate; The second processing chamber is connected to the second bottom plate through a second spring member.

4. The silicon material conveying device in the production of crystalline silicon material according to claim 3, characterized in that: The second processing bin is divided into a separation bin and a collection area by a second screening plate. After the material transported by the conveyor belt slides into the separation bin, the tiny particles pass through the second screening plate and reach the collection area.

5. The silicon material conveying device in the production of crystalline silicon material according to claim 4, characterized in that: A collecting tank is arranged in the collecting area.

6. The silicon material conveying device in the production of crystalline silicon material according to claim 5, characterized in that: The separation bin is provided with a discharge port on a side wall away from the front-end processing equipment.

7. The silicon material conveying device in the production of crystalline silicon material according to claim 6, characterized in that: The second screen plate is arranged inclined, and the material is accelerated along the inclined surface from the end of the second screen plate away from the discharge port to the end close to the discharge port.

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