Ceramic raw material screening and impurity removing device

CN224823477UActive Publication Date: 2026-10-09LONGQUAN YUNITANG CELADON FACTORY
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Patent Information

Application Number
CN202522262031.0
Authority / Receiving Office
CN · China
Patent Type
Utility models(China)
Current Assignee / Owner
Filing Date
2025-10-24
Publication Date
2026-10-09
Estimated Expiration
2035-10-24

AI Technical Summary

Technical Problem

[0003]然而在现有的陶瓷烧制作业中,陶瓷原料的筛选作业多为人工筛选,整体的工作效率较为低下,且人工筛选所耗费时间较长并不具备除杂效果,使得整体的陶瓷烧制的成品质量容易受到相应的影响,同时现有的筛选设备大多整体体积较大,不方便进行移动,难以根据实际使用需求进行移动作业,限制了自身的适用范围,此外现有的筛选设备仅具备筛选使用效果,难以在原料筛选过程中同步实现除杂效果,以至于整体的使用功能性相应受到了一定程度的限制

Benefits of technology

[0018]通过将功能性组件与主控面板之间进行电性连接,使得该装置能够通过主控面板对整体的功能性使用作业进行集中控制,有效降低了整体的操作使用难度,从而有助于提升整体的使用工作效率。

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Abstract

The utility model discloses a kind of ceramic raw material screening and impurity removing device, including bearing rack, the main control panel is fixedly installed in the side position of the outside front of bearing rack, the other side position of the outside front of bearing rack is preformed with maintenance notch, the upper end of bearing rack is preformed with top cover plate, the lower end position of bearing rack side is preformed with impurity receiving cavity, the upper end position of bearing rack side is fixedly installed with impurity discharging guide frame, the side position of bearing rack inside is fixedly installed with separation baffle, the upper end position of bearing rack inside is fixedly installed with screening bearing plate. The utility model is respectively provided with multiple groups of collection drawer, can be corresponding to ceramic raw material and the impurity screened is collected, to facilitate subsequent processing use work, effectively in the use basis of promoting overall work efficiency greatly improves the overall comprehensive use performance.
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Description

Technical Field

[0001] This utility model relates to the field of ceramic raw material screening technology, and in particular to a ceramic raw material screening and impurity removal device. Background Technology

[0002] Ceramic raw materials are essential materials in ceramic production. Before processing, ceramic raw materials need to be screened and impurities removed to ensure the quality of the final fired ceramic products.

[0003] However, in the current ceramic firing industry, the screening of ceramic raw materials is mostly done manually, which results in low overall work efficiency. Manual screening is also time-consuming and does not remove impurities, which can affect the quality of the finished ceramic products. In addition, most existing screening equipment is bulky and inconvenient to move, making it difficult to adapt to actual needs and limiting its applicability. Furthermore, existing screening equipment only has the function of screening and cannot simultaneously remove impurities during the raw material screening process, thus limiting its overall functionality.

[0004] Based on this, the present invention proposes a ceramic raw material screening and impurity removal device to solve the above problems. Utility Model Content

[0005] The purpose of this section is to outline some aspects of embodiments of the present invention and to briefly describe some preferred embodiments. Simplifications or omissions may be made in this section, as well as in the abstract and title of the present invention, to avoid obscuring the purpose of these documents, and such simplifications or omissions should not be construed as limiting the scope of the present invention.

[0006] In view of the problems existing in the design of the above and / or existing ceramic raw material screening equipment, this utility model is proposed.

[0007] Therefore, one of the objectives of this utility model is to provide a ceramic raw material screening and impurity removal device. By adopting a vibration screening structure, the device has the basic functionality of efficiently screening ceramic raw materials. Furthermore, it is equipped with a double-end impurity removal mechanism, which can achieve simultaneous removal of multiple impurities during the vibration screening process, effectively enriching the overall functionality.

[0008] To achieve the above effects, this utility model provides the following technical solution: a ceramic raw material screening and impurity removal device, including a support frame, a main control panel fixedly installed on one side of the outer front of the support frame, a maintenance slot pre-set on the other side of the outer front of the support frame, a top cover plate pre-set at the upper end of the support frame, an impurity collection cavity pre-set at the lower end of the side of the support frame, an impurity discharge guide frame fixedly installed at the upper end of the side of the support frame, the impurity discharge guide frame, the impurity collection cavity, and the interior of the support frame are interconnected, a raw material collection cavity pre-set on one side of the lower end of the interior of the support frame, a magnetic powder collection cavity pre-set on the other side of the lower end of the interior of the support frame, a separation partition fixedly installed on the side of the interior of the support frame, and a screening support plate fixedly installed at the upper end of the interior of the support frame.

[0009] As a preferred embodiment of the ceramic raw material screening and impurity removal device of this utility model, wherein: omnidirectional casters are symmetrically and fixedly installed at the corners of the bottom of the support frame; an inspection cover is pre-installed on the outside of the inspection slot; an impurity collection drawer is movably installed inside the impurity collection cavity; a raw material collection drawer is movably installed inside the raw material collection cavity; a magnetic powder collection drawer is movably installed inside the magnetic powder collection cavity; and a movable auxiliary push rod is fixedly installed at the middle position of the upper back of the support frame.

[0010] By adding casters, the device can move freely and is ready for normal use. Combined with the auxiliary push rod, it can be moved to a designated working position according to the specific needs of actual application. The inspection cover allows for regular inspection and maintenance of the internal functional components, which helps to extend the overall service life.

[0011] As a preferred embodiment of the ceramic raw material screening and impurity removal device of this utility model, wherein: symmetrical inner sliding grooves are provided on both sides of the impurity collection cavity, raw material collection cavity, and magnetic powder collection cavity; the external specifications of the impurity collection drawer, raw material collection drawer, and magnetic powder collection drawer correspond to and match the internal specifications of the impurity collection cavity, raw material collection cavity, and magnetic powder collection cavity, respectively; symmetrically fixed sliding blocks are installed on the inner sides of both sides of the impurity collection drawer, raw material collection drawer, and magnetic powder collection drawer; the external specifications of the sliding blocks are adapted to the internal specifications of the inner sliding grooves; the impurity collection drawer, raw material collection drawer, and magnetic powder collection drawer are slidably connected to each other through the sliding blocks and the inner sliding grooves; and a pull-out handle is fixedly installed in the middle of the front of the impurity collection drawer, raw material collection drawer, and magnetic powder collection drawer.

[0012] By setting up impurity collection drawers, raw material collection drawers, and magnetic powder collection drawers, combined with the sliding connection structure between the associated slider and the inner chute, it is possible to achieve separate collection of different materials after screening, so as to facilitate the normal and smooth operation of subsequent processing after screening and impurity removal.

[0013] As a preferred embodiment of the ceramic raw material screening and impurity removal device of this utility model, a feeding hopper is preset on the side of the upper end of the top cover plate. The inside of the feeding hopper passes through the top cover plate and is interconnected with the inside of the support frame. The preset position of the feeding hopper on the upper end of the top cover plate corresponds to the preset position of the raw material receiving cavity inside the support frame. A guide platform is symmetrically fixedly installed on one side of the inside of the support frame and on the upper end of the side of the separation partition. Magnetic powder sieve holes are symmetrically and evenly spaced on the outside of the separation partition.

[0014] By opening corresponding magnetic powder sieve holes on the separation partition, the magnetic powder adsorption and screening effect inside the ceramic raw material can be achieved without affecting the normal falling operation of the ceramic raw material after vibration screening, which effectively improves the screening and impurity removal efficiency of the device for ceramic raw materials.

[0015] As a preferred embodiment of the ceramic raw material screening and impurity removal device of this utility model, a main control power supply is fixedly installed at the upper end of the other side of the inner side of the bearing frame, a power supply connection port is preset on the outside of the main control power supply, a slot adapted to the external specifications of the power supply connection port is reserved at the corresponding position on the outside of the inspection cover, and a powerful electromagnet is fixedly installed at the lower end of the main control power supply.

[0016] By setting up a main control power supply, the device has the basic performance required for normal operation. Furthermore, the inclusion of a powerful electromagnet enables synchronous magnetic powder removal during the screening of ceramic raw materials, effectively enriching the overall functionality.

[0017] As a preferred embodiment of the ceramic raw material screening and impurity removal device of this utility model, wherein: a screen is pre-set on one side of the upper end of the screening support plate, a positioning baffle is fixedly installed on the other side of the upper end of the screening support plate, a vibration motor is fixedly installed on the other side of the bottom of the screening support plate, a pushing cylinder is fixedly installed on the inner side of the positioning baffle, the output shaft of the pushing cylinder passes through the positioning baffle and is fixedly connected to the screening push plate, and the main control panel is electrically connected to the vibration motor, the powerful electromagnet and the pushing cylinder;

[0018] By electrically connecting the functional components to the main control panel, the device can be centrally controlled through the main control panel, effectively reducing the overall difficulty of operation and thus helping to improve overall work efficiency.

[0019] The beneficial effects of this utility model are as follows: By adopting a vibration screening structure, this utility model possesses the basic functionality of efficiently screening ceramic raw materials. Furthermore, it is equipped with a double-end impurity removal mechanism, enabling simultaneous removal of multiple impurities during the vibration screening process, effectively enriching the overall functionality. Additionally, the device is equipped with omnidirectional casters and a moving auxiliary push rod, allowing for adjustment of the working position according to specific application needs. Multiple collection drawers are also provided to collect both the ceramic raw materials and the screened impurities for subsequent processing. This significantly improves overall efficiency and comprehensive performance. Moreover, the device has a compact structure, integrating multiple functional components and incorporating a maintenance structure, which helps extend its service life. Attached Figure Description

[0020] To more clearly illustrate the technical solutions of the embodiments of this utility model, the drawings used in the description of the embodiments will be briefly introduced below. Obviously, the drawings described below are only some embodiments of this utility model. For those skilled in the art, other drawings can be obtained based on these drawings without creative effort. Wherein:

[0021] Figure 1 This is a schematic diagram of the front view of the disassembled structure of this utility model;

[0022] Figure 2 This is a schematic diagram of the rear view of the disassembled structure of this utility model;

[0023] Figure 3 This is a schematic diagram of the structure of this utility model in a disassembled state, viewed from below.

[0024] Figure 4 This is a schematic diagram of the overall front structure of this utility model;

[0025] Figure 5 This is a schematic diagram of the overall rear view structure of this utility model;

[0026] Figure 6 This is a schematic diagram of the complete assembly structure of the screening support plate of this utility model;

[0027] Figure 7 This is a bottom view of the complete assembly of the screening support plate of this utility model.

[0028] The diagram shows the following components: 1. Support frame; 2. Casters; 3. Main control panel; 4. Top cover; 5. Impurity collection chamber; 6. Impurity discharge guide frame; 7. Raw material collection chamber; 8. Magnetic powder collection chamber; 9. Screening support plate; 10. Separation partition; 11. Guide platform; 12. Impurity collection drawer; 13. Raw material collection drawer; 14. Magnetic powder collection drawer; 15. Inspection cover; 16. Inner chute; 17. Screen; 18. Positioning baffle; 19. Feed hopper; 20. Vibration motor; 21. Main control power supply; 22. High-power electromagnet; 23. Movable auxiliary push rod; 24. Associated slider; 25. Pull handle; 26. Push cylinder; 27. Screening push plate; 28. Magnetic powder sieve hole; 29. ​​Power supply connection port; 30. Inspection slot. Detailed Implementation

[0029] To make the above-mentioned objectives, features and advantages of this utility model more apparent and understandable, the specific embodiments of this utility model will be described in detail below with reference to the accompanying drawings.

[0030] Many specific details are set forth in the following description in order to provide a full understanding of the present invention. However, the present invention may also be implemented in other ways different from those described herein. Those skilled in the art can make similar extensions without departing from the spirit of the present invention. Therefore, the present invention is not limited to the specific embodiments disclosed below.

[0031] Secondly, this utility model is described in detail with reference to the schematic diagrams. When detailing the embodiments of this utility model, for ease of explanation, the cross-sectional views illustrating the device structure may be partially enlarged, not adhering to the usual scale. Furthermore, the schematic diagrams are merely examples and should not limit the scope of protection of this utility model. In addition, actual manufacturing should include the three-dimensional spatial dimensions of length, width, and depth.

[0032] Please see Figures 1-7This utility model provides a technical solution: a ceramic raw material screening and impurity removal device, including a support frame 1, casters 2, a main control panel 3, a top cover 4, an impurity collection chamber 5, an impurity discharge guide frame 6, a raw material collection chamber 7, a magnetic powder collection chamber 8, a screening support plate 9, a separation partition 10, a guide platform 11, an impurity collection drawer 12, a raw material collection drawer 13, a magnetic powder collection drawer 14, an inspection cover 15, an inner slide 16, a sieve screen 17, a positioning baffle 18, a feed hopper 19, a vibration motor 20, a main control power supply 21, a powerful electromagnet 22, a moving auxiliary push rod 23, a connecting slider 24, a pull handle 25, a push cylinder 26, a screening push plate 27, a magnetic powder sieve hole 28, a power supply connection port 29, and The main control panel 3 is fixedly installed on one side of the external front of the bearing frame 1. An inspection slot 30 is pre-installed on the other side of the external front of the bearing frame 1. A top cover plate 4 is pre-installed at the upper end of the bearing frame 1. An impurity collection cavity 5 is pre-installed at the lower end of the side of the bearing frame 1. An impurity discharge guide frame 6 is fixedly installed at the upper end of the side of the bearing frame 1. The impurity discharge guide frame 6, the impurity collection cavity 5, and the interior of the bearing frame 1 are interconnected. A raw material collection cavity 7 is pre-installed on one side of the lower end of the interior of the bearing frame 1. A magnetic powder collection cavity 8 is pre-installed on the other side of the lower end of the interior of the bearing frame 1. A separation partition 10 is fixedly installed on the side of the interior of the bearing frame 1. A separation partition 10 is fixedly installed at the upper end of the interior of the bearing frame 1. The system includes a screening support plate 9, symmetrically fixed casters 2 at the bottom corners of the support frame 1, a pre-installed maintenance cover 15 on the exterior of the inspection slot 30, an impurity collection drawer 12 movably installed inside the impurity collection chamber 5, a raw material collection drawer 13 movably installed inside the raw material collection chamber 7, and a magnetic powder collection drawer 14 movably installed inside the magnetic powder collection chamber 8. A movable auxiliary push rod 23 is fixedly installed at the middle of the upper back of the support frame 1. Internal sliding grooves 16 are symmetrically opened on both sides of the interior of the impurity collection chamber 5, the raw material collection chamber 7, and the magnetic powder collection chamber 8. The external dimensions of the impurity collection drawer 12, the raw material collection drawer 13, and the magnetic powder collection drawer 14 are respectively aligned with those of the impurity collection chamber 5, the raw material collection chamber 7, and the magnetic powder collection chamber 8. The internal specifications of the components 8 correspond and match each other. The inner sides of the outer sides of the impurity collection drawer 12, raw material collection drawer 13, and magnetic powder collection drawer 14 are symmetrically fixed with associated sliders 24. The external specifications of the associated sliders 24 are compatible with the internal specifications of the inner slide groove 16. The impurity collection drawer 12, raw material collection drawer 13, and magnetic powder collection drawer 14 are slidably connected to each other through the associated sliders 24 and the inner slide groove 16. A pull-out handle 25 is fixedly installed in the middle of the outer front of each of the impurity collection drawer 12, raw material collection drawer 13, and magnetic powder collection drawer 14. A feed hopper 19 is pre-set on the side of the upper end of the top cover plate 4. The feed hopper 19 passes through the top cover plate 4 and communicates with the interior of the support frame 1.Furthermore, the preset position of the feed hopper 19 on the upper end of the top cover plate 4 corresponds to the preset position of the raw material receiving cavity 7 inside the support frame 1. A guide platform 11 is symmetrically and fixedly installed on one side of the support frame 1 and the upper end of the side of the separation partition 10. Magnetic powder sieve holes 28 are symmetrically and evenly spaced on the outside of the separation partition 10. A main control power supply 21 is fixedly installed at the upper end of the other side of the support frame 1. A power supply connection port 29 is preset on the outside of the main control power supply 21. A corresponding position on the outside of the maintenance cover plate 15 is reserved with a size compatible with the external dimensions of the power supply connection port 29. The main control power supply 21 has a slot, and a powerful electromagnet 22 is fixedly installed at the lower end. A screen 17 is pre-installed on one side of the upper end of the screening support plate 9. A positioning baffle 18 is fixedly installed on the other side of the upper end of the screening support plate 9. A vibration motor 20 is fixedly installed on the other side of the bottom of the screening support plate 9. A pushing cylinder 26 is fixedly installed inside the positioning baffle 18. The output shaft of the pushing cylinder 26 passes through the positioning baffle 18 and is fixedly connected to a screen pusher plate 27. The main control panel 3 is electrically connected to the vibration motor 20, the powerful electromagnet 22, and the pushing cylinder 26.

[0033] Specifically, by adding casters 2, the device gains the ability to move freely and operate normally. Combined with the auxiliary push rod 23, the device can be moved to a designated working position according to the specific needs of actual application. The inspection cover 15 allows for regular inspection and maintenance of the internal functional components, extending the overall service life. The impurity collection drawer 12, raw material collection drawer 13, and magnetic powder collection drawer 14, along with the sliding connection structure between the associated slider 24 and the inner groove 16, enable separate collection of different materials after screening, facilitating smooth subsequent processing after screening and impurity removal. Magnetic powder collection drawers are correspondingly provided on the separation partition 10. The sieve hole 28 allows for magnetic powder adsorption and screening of the ceramic raw materials without affecting the normal falling operation of the ceramic raw materials after vibration screening. This effectively improves the screening and impurity removal efficiency of the device. The main control power supply 21 ensures that the device has the basic performance for normal operation. The powerful electromagnet 22 enables synchronous magnetic powder removal during the ceramic raw material screening process, effectively enriching the overall functionality. By electrically connecting the functional components to the main control panel 3, the device can be centrally controlled through the main control panel 3, effectively reducing the difficulty of operation and thus improving overall work efficiency.

[0034] Working principle:

[0035] When using this device to screen and remove impurities from ceramic raw materials, the ceramic raw materials to be screened and removed are first placed into the support frame 1 from the feed hopper 19 and fall onto the screen 17 on the upper end of the screening support plate 9. After the device is connected to the power supply through the power connection port 29 and the external adapter wire, the vibration motor 20 is started by controlling the main control panel 3, so that the entire screening support plate 9 vibrates to vibrate and screen the ceramic raw materials on the upper end of the screen 17, shaking off the clumps and letting the scattered parts fall through the screen 17. Under the inclined guiding action of the guide table 11, the screened material falls into the raw material collection container. Inside the storage cavity 7, the raw material collection drawer 13 is activated. Simultaneously, the powerful electromagnet 22 is activated, generating a strong magnetic attraction force. This allows the magnetic powder in the screened ceramic raw material falling from the sieve 17 to pass through the magnetic powder sieve holes 28 and be attracted to the powerful electromagnet 22 under the strong magnetic attraction force. Meanwhile, the blocky impurities in the raw material that cannot be broken down by vibration remain at the upper end of the sieve 17. The push cylinder 26 is activated, driving the sieve push plate 27 to push the blocky impurities to the impurity discharge guide frame 6, and then they fall into the impurity collection drawer 12 inside the impurity storage cavity 5 through the impurity discharge guide frame 6. With the sliding connection between the grooves 16, the impurity collection drawer 12 can be pulled out by pulling the handle 25 to clean the blocky impurities inside, enabling fast and stable ceramic raw material screening. Utilizing the sliding connection between the associated slider 24 and the inner groove 16, the raw material collection drawer 13 can be pulled out by pulling the handle 25 to collect the screened raw materials. After the powerful electromagnet 22 is de-energized, the magnetic powder impurities adsorbed on the outside of the electromagnet 22 slide into the magnetic powder collection drawer 14 in the magnetic powder storage cavity 8, achieving continuous, stable, smooth, and efficient ceramic raw material screening. The device is designed for cleaning and removing impurities. During long-term use, the main control power supply 21, the powerful electromagnet 22, and the vibration motor 20 inside the support frame 1 can be inspected and maintained periodically by disassembling the inspection cover 15. This helps to extend the overall service life and effectively improve the overall performance. In addition, the structural design of the omnidirectional casters 2 and the auxiliary push rod 23 of the device enables the device to move and adjust its position according to specific usage requirements, which enriches the overall functionality and effectively expands the scope of application.

[0036] It should be noted that the above embodiments are only used to illustrate the technical solution of this utility model and are not intended to limit it. Although this utility model has been described in detail with reference to preferred embodiments, those skilled in the art should understand that modifications or equivalent substitutions can be made to the technical solution of this utility model without departing from the spirit and scope of the technical solution of this utility model, and all such modifications or substitutions should be covered within the scope of the claims of this utility model.

Claims

1. A ceramic raw material screening and impurity removal device, comprising a support frame (1), characterized in that: A main control panel (3) is fixedly installed on one side of the outer front of the bearing frame (1). An inspection slot (30) is preset on the other side of the outer front of the bearing frame (1). A top cover plate (4) is preset at the upper end of the bearing frame (1). An impurity collection cavity (5) is preset at the lower end of the side of the bearing frame (1). An impurity discharge guide frame (6) is fixedly installed at the upper end of the side of the bearing frame (1). The impurity discharge guide frame (6), the impurity collection cavity (5), and the interior of the bearing frame (1) are interconnected. A raw material collection cavity (7) is preset on one side of the lower end of the interior of the bearing frame (1). A magnetic powder collection cavity (8) is preset on the other side of the lower end of the interior of the bearing frame (1). A separation partition (10) is fixedly installed on the side of the interior of the bearing frame (1). A screening bearing plate (9) is fixedly installed at the upper end of the interior of the bearing frame (1).

2. The ceramic raw material screening and impurity removal device as described in claim 1, characterized in that: The bottom corners of the support frame (1) are symmetrically fixed with casters (2), the outside of the inspection slot (30) is pre-set with an inspection cover (15), the impurity collection cavity (5) is movably installed with an impurity collection drawer (12), the inside of the raw material collection cavity (7) is movably installed with a raw material collection drawer (13), the inside of the magnetic powder collection cavity (8) is movably installed with a magnetic powder collection drawer (14), and a moving auxiliary push rod (23) is fixedly installed at the middle position of the upper back of the support frame (1).

3. The ceramic raw material screening and impurity removal device as described in claim 2, characterized in that: The impurity collection cavity (5), the raw material collection cavity (7), and the magnetic powder collection cavity (8) are all symmetrically provided with inner sliding grooves (16) on both sides. The external dimensions of the impurity collection drawer (12), the raw material collection drawer (13), and the magnetic powder collection drawer (14) correspond to and match the internal dimensions of the impurity collection cavity (5), the raw material collection cavity (7), and the magnetic powder collection cavity (8). The inner sides of the external sides of the impurity collection drawer (12), the raw material collection drawer (13), and the magnetic powder collection drawer (14) are respectively... Each of the three drawers is symmetrically and fixedly installed with an associated slider (24). The external dimensions of the associated slider (24) are compatible with the internal dimensions of the inner groove (16). The impurity collection drawer (12), the raw material collection drawer (13), and the magnetic powder collection drawer (14) are slidably connected to each other through the associated slider (24) and the inner groove (16). Each of the three drawers has a pull handle (25) fixedly installed in the middle of the front surface of the impurity collection drawer (12), the raw material collection drawer (13), and the magnetic powder collection drawer (14).

4. The ceramic raw material screening and impurity removal device as described in claim 3, characterized in that: A feeding hopper (19) is pre-set at the upper side of the top cover plate (4). The inside of the feeding hopper (19) passes through the top cover plate (4) and is connected to the inside of the support frame (1). The pre-set position of the feeding hopper (19) at the upper end of the top cover plate (4) corresponds to the pre-set position of the raw material receiving cavity (7) inside the support frame (1). A guide platform (11) is symmetrically fixedly installed on one side of the support frame (1) and the upper end of the side of the separation partition (10). Magnetic powder sieve holes (28) are symmetrically and evenly spaced on the outside of the separation partition (10).

5. The ceramic raw material screening and impurity removal device as described in claim 4, characterized in that: A main control power supply (21) is fixedly installed at the upper position of the other side inside the bearing frame (1). A power supply connection port (29) is preset on the outside of the main control power supply (21). A slot that matches the external specifications of the power supply connection port (29) is reserved at the corresponding position on the outside of the inspection cover (15). A powerful electromagnet (22) is fixedly installed at the lower position of the main control power supply (21).

6. The ceramic raw material screening and impurity removal device as described in claim 5, characterized in that: A screen (17) is pre-installed on one side of the upper end of the screening support plate (9). A positioning baffle (18) is fixedly installed on the other side of the upper end of the screening support plate (9). A vibration motor (20) is fixedly installed on the other side of the bottom of the screening support plate (9). A push cylinder (26) is fixedly installed on the inner side of the positioning baffle (18). The output shaft of the push cylinder (26) passes through the positioning baffle (18) and is fixedly connected to a screen push plate (27). The main control panel (3) is electrically connected to the vibration motor (20), the powerful electromagnet (22), and the push cylinder (26).