Polycrystalline silicon bar crusher with crushing and screening structure

Abstract

The utility model discloses a polycrystalline silicon bar crusher with a crushing and screening structure, and relates to the technical field of polycrystalline silicon bar crushers, the polycrystalline silicon bar crusher comprises a crushing box, a feed port and a discharge port, the top end of the crushing box is provided with the feed port, and the bottom end of the outer wall of the crushing box is provided with the discharge port. When the polycrystalline silicon bar crusher with the crushing and screening structure is used, crushed powder is classified and screened through a screen A, a screen B and a screen C in the screening mechanism, then a driving motor is started to push the classified and screened powder out of the crushing box through a guide-out opening, and then the crushed powder does not need to be moved to other stations for screening; the grading screen can complete grading screening work of polycrystalline silicon bars, so that the polycrystalline silicon bars meet the production requirements of different granularity requirements, the operation procedures are reduced, the working efficiency is improved, and therefore when the polycrystalline silicon bar crusher is used, the effect that the working efficiency of the grading screen is improved conveniently is achieved.

Description

Technical Field

[0001] The utility model relates to the technical field of polysilicon rod crushers, in particular to a polysilicon rod crusher with a crushing and screening structure. Background Art

[0002] Polysilicon rod is a semiconductor material with high purity, high mechanical strength and excellent electrical properties. It is one of the important raw materials for manufacturing solar cells, integrated circuits and other electronic components. The polysilicon rod crusher is a device specially used to crush polysilicon rods into the required particle size. It crushes the polysilicon rods through the interaction of components such as hammers, anvils and crushing rollers.

[0003] According to patent number CN217093809U, a polysilicon crusher includes a primary crushing mechanism and a secondary crushing mechanism. The primary crushing mechanism is installed above the secondary crushing mechanism. The primary crushing mechanism includes a pressure plate and a crushing frame. The crushing frame is internally provided with a plurality of material leakage openings, which are connected by support plates. The pressure plate is arranged above the material leakage openings. The secondary crushing mechanism includes a crushing box and a collection hopper. The crushing box has openings at the upper and lower ends. The upper open end of the crushing box is connected to the crushing frame, and the lower open end is connected to the collection hopper. Two crushing rollers are rotatably connected to the crushing box and rotate in opposite directions. The utility model squeezes and collides the polysilicon rods placed on the support plate of the crushing frame by raising and lowering the pressure plate, achieving primary crushing, and then falling into the crushing box for secondary crushing. The utility model has high crushing efficiency and is economical and applicable. The primary crushing and secondary crushing work together to achieve fine crushing of polysilicon, facilitating subsequent transportation and processing.

[0004] However, during the use of the above patent, the polysilicon rods can only be crushed and ground into powder. Subsequently, the polysilicon powder needs to be transported to other locations, and then the crushed polysilicon powder needs to be screened before the polysilicon powder can be graded to meet production needs with different particle size requirements. However, this method of screening materials is relatively cumbersome and not convenient enough, which leads to low work efficiency, thus affecting the use of the crusher. Utility Model Content

[0005] The purpose of the utility model is to provide a polysilicon rod crusher with a crushing and screening structure to solve the problems raised by the above background technology.

[0006] To achieve the above-mentioned objectives, the utility model provides the following technical solutions: a polysilicon rod crusher with a crushing and screening structure, comprising a crushing box, a feed port and a discharge port, a feed port being provided at the top of the crushing box, and a discharge port being provided at the bottom end of the outer wall of the crushing box, a crushing roller A being connected to one side of the middle of the crushing box, and a crushing roller B being connected to the other side of the middle of the crushing box, a screening mechanism being provided at the bottom end of the interior of the crushing box, and the screening mechanism comprising screen A, screen B, screen C, a driving motor, a gear, a tooth plate, a lead-out frame, a fixed plate, a lead-out plate, an electric push rod, a fixed frame and a sealing seat, screen A, screen B and screen C being provided in sequence from top to bottom inside the crushing box, a driving motor being connected to one side of the middle of the outer wall of the crushing box through a support platform, and a gear being docked at the output end of the driving motor.

[0007] Preferably, the outer wall of the gear is meshedly connected with a tooth plate, and the top end of the tooth plate is connected to a guide frame.

[0008] Preferably, a fixed plate is slidably connected to the interior of one side of the outer wall of the lead-out frame, and a lead-out plate is butted against the other side of the outer wall of the lead-out frame.

[0009] Preferably, one side of the outer wall of the fixing plate is welded to the crushing box, and an electric push rod is installed on the side of the crushing box away from the driving motor.

[0010] Preferably, the output end of the electric push rod is connected to a fixing frame, and a sealing seat is welded to one side of the outer wall of the fixing frame.

[0011] Preferably, the sealing seats are distributed at equal intervals on the fixing frame, and a guide outlet is provided on a side of the crushing box close to the fixing frame.

[0012] Compared with the prior art, the beneficial effect of the present invention is that when the polysilicon rod crusher with a crushing and screening structure is used, the crushed powder is graded and screened through the screens A, B and C in the screening mechanism, and then the drive motor is started to push the graded and screened powder out of the crushing box through the outlet, thereby completing the graded screening of the polysilicon rods without moving the crushed powder to other workstations for screening, thereby meeting the production needs of different particle size requirements, and then reducing the operating procedures and improving work efficiency, thereby facilitating the graded screening and improving work efficiency when the polysilicon rod crusher is used. BRIEF DESCRIPTION OF THE DRAWINGS

[0013] Figure 1 This is a schematic diagram of the main three-dimensional structure of the utility model;

[0014] Figure 2 This is a schematic diagram of the rear-view stereoscopic structure of the utility model;

[0015] Figure 3 This is a schematic diagram of the rear-view stereoscopic cutaway structure of the utility model;

[0016] Figure 4 This is a schematic diagram of the three-dimensional structure of the screening mechanism of the utility model;

[0017] Figure 5 This is a schematic diagram of the three-dimensional structure of the tooth plate of the utility model;

[0018] Figure 6 It is a schematic diagram of the right-side three-dimensional cutaway structure of the utility model.

[0019] In the figure: 1. Crushing box; 2. Feed port; 3. Discharge port; 4. Crushing roller A; 5. Crushing roller B; 6. Screening mechanism; 601. Screen A; 602. Screen B; 603. Screen C; 604. Driving motor; 605. Gear; 606. Tooth plate; 607. Lead-out frame; 608. Fixed plate; 609. Lead-out plate; 610. Electric push rod; 611. Fixed frame; 612. Sealing seat. DETAILED DESCRIPTION

[0020] The following will be combined with the drawings in the embodiments of the present invention to clearly and completely describe the technical solutions in the embodiments of the present invention. Obviously, the embodiments described are only part of the embodiments of the present invention, not all of the embodiments. Based on the embodiments of the present invention, all other embodiments obtained by ordinary technicians in this field without making creative efforts are within the scope of protection of the present invention.

[0021] See also Figures 1-6The utility model provides a technical solution: a polysilicon rod crusher with a crushing and screening structure, comprising a crushing box 1, a feed port 2 and a discharge port 3. The top of the crushing box 1 is provided with a feed port 2, and the bottom of the outer wall of the crushing box 1 is provided with a discharge port 3. A crushing roller A4 is connected to one side of the middle of the crushing box 1, and a crushing roller B5 is connected to the other side of the middle of the crushing box 1. A screening mechanism 6 is provided at the bottom of the crushing box 1, and the screening mechanism 6 includes a screen A601, a screen B602, and a screen C 603, drive motor 604, gear 605, tooth plate 606, lead-out frame 607, fixed plate 608, lead-out plate 609, electric push rod 610, fixed frame 611 and packing seat 612. Screen A 601, screen B 602 and screen C 603 are arranged in order from top to bottom inside the crushing box 1. The middle side of the outer wall of the crushing box 1 is connected to the drive motor 604 through the support platform, and the output end of the drive motor 604 is connected to the gear 605; the outer wall of the gear 605 is meshed with the gear The tooth plate 606 is connected to the top of the tooth plate 606 with a guide frame 607; a fixed plate 608 is slidably connected to the inner side of the outer wall of the guide frame 607, and a guide plate 609 is connected to the other side of the outer wall of the guide frame 607; one side of the outer wall of the fixed plate 608 is welded to the crushing box 1, and an electric push rod 610 is installed on the side of the crushing box 1 away from the drive motor 604; the output end of the electric push rod 610 is connected to the fixed frame 611, and a sealing seat 612 is welded to one side of the outer wall of the fixed frame 611; the sealing seat 61 2 are evenly spaced on the fixed frame 611, and a lead-out port is provided on the side of the crushing box 1 close to the fixed frame 611; the top of the tooth plate 606 is welded to the lead-out frame 607, and the sieve holes of the screens A601, B602 and C603 decrease from top to bottom, and the screens A601, B602 and C603 are parallel to each other. A limiting hole corresponding to the fixed plate 608 is provided inside the lead-out frame 607, and the lead-out frame 607 and the lead-out plate 609 are fixedly connected.

[0022] During specific implementation, in the process of crushing the polysilicon rods by the crusher, the crushing roller A4 and the crushing roller B5 rotate relative to each other to crush the polysilicon rods, and the powder after the crushed polysilicon rods pass through the screen A601, the screen B602 and the screen C603 in sequence. Since the sieve holes of the screens A601, B602 and C603 decrease from top to bottom, the powder is graded and screened by the screens A601, B602 and C603. Then, the electric push rod 610 is started, and since the output end of the electric push rod 610 is connected to the fixed frame 611, the electric push rod 610 extends to drive the fixed frame 611 to move, and then the fixed frame 611 moves to drive the isolation seat 612 to move away from the crushing box 1 until the isolation seat 612 is disconnected from the crushing box 1, so that the guide outlet appears;

[0023] Then, the driving motor 604 is started. Since the output end of the driving motor 604 is connected to the gear 605, the driving motor 604 starts to drive the gear 605 to rotate. Since the gear 605 is meshed with the toothed plate 606, the gear 605 rotates and drives the toothed plate 606 to move. Then, the toothed plate 606 moves and drives the lead-out frame 607 to move together. Since the lead-out frame 607 is connected to the lead-out plate 609, the lead-out frame 607 moves and drives the lead-out plate 609 to move toward the lead-out port. Since the lead-out frame 607 is slidably connected to the fixed plate 608, the fixed plate 608 guides the movement of the lead-out frame 607, thereby making the lead-out frame 607 move stably.

[0024] At this time, the guide plate 609 moves to push the powder blocked by the screens A601, B602 and C603, and then pushes the powder screened by the screens A601, B602 and C603 out of the crushing box 1 through the guide port. There is no need to move the crushed powder to other stations for screening, and the grading and screening of the polysilicon rods can be completed to meet the production needs of different particle size requirements, thereby reducing the operating procedures, saving working time, and ultimately improving work efficiency. Therefore, when the polysilicon rod crusher is used, it plays a role in facilitating the grading screen and improving work efficiency.

[0025] To sum up, when the polysilicon rod crusher with a crushing and screening structure is used, the polysilicon rods that have been preliminarily processed are first introduced into the crushing box 1 through the feed port 2, and then the crushing roller A4 and the crushing roller B5 are driven to rotate by the motor compartment. At this time, the crushing roller A4 and the crushing roller B5 rotate relative to each other, and then the polysilicon rods are crushed and ground into powder, and then polysilicon powder that meets the requirements is formed. This is the existing technology and will not be elaborated on here. The crushed powder is graded and screened by the screening mechanism 6, and the graded and screened powder is exported from the crushing box 1, so that the polysilicon powder can meet the production requirements of different particle size requirements without moving the crushed powder to other workstations for screening, thereby reducing the operating procedures and improving work efficiency. The content not described in detail in this description belongs to the existing technology known to professional and technical personnel in this field.

[0026] Although the present invention has been described in detail with reference to the aforementioned embodiments, those skilled in the art can still modify the technical solutions described in the aforementioned embodiments, or make equivalent substitutions for some of the technical features therein. 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. A polysilicon rod crusher with a crushing and screening structure, comprising a crushing box (1), a feed port (2) and a discharge port (3), characterized in that: The top of the crushing box (1) is provided with a feed port (2), and the bottom of the outer wall of the crushing box (1) is provided with a discharge port (3), one side of the middle of the crushing box (1) is connected to a crushing roller A (4), and the other side of the middle of the crushing box (1) is connected to a crushing roller B (5), and the bottom of the inner part of the crushing box (1) is provided with a screening mechanism (6), and the screening mechanism (6) includes a screen A (601), a screen B (602), a screen C (603), a driving motor (604), a gear (605), A tooth plate (606), a guide frame (607), a fixed plate (608), a guide plate (609), an electric push rod (610), a fixed frame (611) and a sealing seat (612); a screen A (601), a screen B (602) and a screen C (603) are sequentially arranged inside the crushing box (1) from top to bottom; a driving motor (604) is connected to one side of the middle of the outer wall of the crushing box (1) through a support platform, and a gear (605) is connected to the output end of the driving motor (604).

2. The polysilicon rod crusher with a crushing and screening structure according to claim 1, characterized in that: The outer wall of the gear (605) is meshedly connected with a tooth plate (606), and the top end of the tooth plate (606) is connected with a guide frame (607).

3. The polysilicon rod crusher with a crushing and screening structure according to claim 2, characterized in that: A fixed plate (608) is slidably connected to the interior of one side of the outer wall of the lead-out frame (607), and a lead-out plate (609) is docked to the other side of the outer wall of the lead-out frame (607).

4. The polysilicon rod crusher with a crushing and screening structure according to claim 3, characterized in that: One side of the outer wall of the fixing plate (608) is welded to the crushing box (1), and an electric push rod (610) is installed on the side of the crushing box (1) away from the driving motor (604).

5. The polysilicon rod crusher with a crushing and screening structure according to claim 2, characterized in that: The output end of the electric push rod (610) is butt-jointed with a fixing frame (611), and a sealing seat (612) is welded to one side of the outer wall of the fixing frame (611).

6. The polysilicon rod crusher with a crushing and screening structure according to claim 5, characterized in that: The sealing seats (612) are distributed at equal intervals on the fixing frame (611), and a guide outlet is provided on a side of the crushing box (1) close to the fixing frame (611).

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