Kaolin powder curved surface vibrating screen equipment

Abstract

This utility model relates to the field of curved surface vibrating screening of kaolin powder, and discloses a curved surface vibrating screening device for kaolin powder, including a screen box. A dust extraction and removal mechanism is provided on the left side of the screen box, and a disassembly and assembly mechanism is provided on the inner wall of the screen box. A curved screen is installed inside the screen box, and a discharge component is provided in the middle of the bottom wall of the screen box. The dust extraction and removal mechanism includes a transfer shell, the right side of which is connected to the top left side of the screen box, and the bottom of which is connected to a dust collection box. Two activated carbon dust removal plates are fixedly connected to the top of the inner wall of the dust collection box, and two montmorillonite plates are fixedly connected to the bottom of the inner wall of the dust collection box. A swing door is rotatably connected to the left side of the dust collection box. In this utility model, through the coordinated work of multiple components, the dust concentration in the workshop is reduced, the screen maintenance time is shortened, the service life of the equipment is extended, and the screening efficiency and quality of kaolin powder are improved.

Description

Technical Field

[0001] This utility model relates to the field of kaolin powder curved surface vibrating screening technology, and in particular to kaolin powder curved surface vibrating screening equipment. Background Technology

[0002] Kaolin powder is a fine powdery mineral material with kaolinite group minerals as the main component. It belongs to a type of clay mineral and is formed by the decomposition of feldspar or other aluminosilicate minerals in igneous and metamorphic rocks through weathering and alteration geological processes. It has many unique physicochemical properties. When processing and using kaolin powder, a vibrating screen is required.

[0003] Early equipment had an unreasonable curved screen structure. Ordinary metal curved screens had low opening rates and the holes were mostly square or rectangular. The path for fine powder to pass through the screen was long, which reduced the effective screening area. Under high-frequency vibration, the bearings, springs, and bolts of the screen machine loosened or were damaged by fatigue. Kaolin powder has a small particle size, and dust is generated during the vibrating screening process. The screen machine had poor sealing performance or was not equipped with a dust removal device, which led to excessive dust concentration in the workshop, endangering the health of operators and polluting the environment.

[0004] The current solutions are to replace the screen with polyurethane mesh and multi-layer composite curved screen to increase the open area ratio, strengthen the daily maintenance and upkeep of the equipment, regularly check the condition of bearings, springs and bolts, and promptly identify and deal with loose or fatigued parts. Baghouse dust collectors are used to collect the dust generated during the screening of kaolin powder. However, some agglomerates formed by strong hydrogen bonding will still remain, causing fine powder to mix into the screen material. The transducer of the ultrasonic vibrating screen will age due to long-term high-frequency operation, resulting in high maintenance costs. Fine powder will absorb moisture and clump together, adhering to the surface of the filter bag to form a wet mud layer, making it difficult to clean. Utility Model Content

[0005] To overcome the above shortcomings, this utility model provides a curved surface vibrating screen for kaolin powder, which aims to improve the problems of easy residue of agglomerates on the curved screen, insufficient material utilization, damp kaolin powder, and difficulty in cleaning the bag filter in the existing technology.

[0006] To achieve the above objectives, this utility model adopts the following technical solution: a kaolin powder curved surface vibrating screening device, including a screen box. A dust extraction and removal mechanism is provided on the left side of the screen box to absorb dust generated during the kaolin powder screening process. A disassembly and assembly mechanism is provided on the inner wall of the screen box to engage the curved screen and perform screening through the vibrating curved screen. Multiple support components are fixedly connected to the bottom of the screen box to provide stable support for equipment operation. A feeding component is provided at the top of the screen box to pour in the material to be screened. An opening component is provided on the front side of the screen box. The dust extraction and removal mechanism includes a transfer shell. The right side of the transfer shell is connected to the top left side of the screen box, and the bottom of the transfer shell is connected to a dust collection box. Two activated carbon dust collection plates are fixedly connected to the top of the inner wall of the dust collection box, and two montmorillonite plates are fixedly connected to the bottom of the inner wall of the dust collection box. A swing door is rotatably connected to the left side of the dust collection box. A curved screen is provided inside the screen box, and a discharge component is provided in the middle of the bottom wall of the screen box.

[0007] As a further description of the above technical solution:

[0008] The disassembly and assembly mechanism includes a connecting shaft. The left side of the connecting shaft is rotatably connected to the left side of the inner wall of the screen box, and the right side of the connecting shaft is rotatably connected to a mounting shell. A slot is provided on the right side of the mounting shell. The left side of the curved screen mesh is engaged with the slot. The top front and rear sides of the mounting shell are rotatably connected to clips. A locking plate is fixedly connected to the bottom of the clips. Limit grooves are provided at the front and rear ends of the left side of the top wall of the curved screen mesh. The bottom of the locking plate is engaged with the limit groove. A vibration component is provided on the right side of the inner wall of the screen box.

[0009] As a further description of the above technical solution:

[0010] The opening assembly includes a rotating shaft, the top of which is rotatably connected to the top front side of the screen box, a door panel is rotatably connected to the front side of the rotating shaft, and a handle is fixedly connected to the front side of the door panel.

[0011] As a further description of the above technical solution:

[0012] The support assembly includes multiple bases, each base having a connecting plate 1 fixedly connected to its bottom. Each connecting plate 1 has four corners at its bottom fixedly connected to a limiting post. Multiple springs are fixedly connected to the middle of the bottom wall of the connecting plate 1. Each spring has a connecting plate 2 fixedly connected to its bottom end. The bottom ends of the multiple limiting posts are slidably connected to the interior of the connecting plate 2. A column is fixedly connected to the bottom of the connecting plate 2. A baffle is fixedly connected to the outer wall of the connecting plate 1.

[0013] As a further description of the above technical solution:

[0014] The feeding assembly includes a top cover, the bottom of which is connected to the top of the screen box, and a feeding port is connected to the top right side of the top cover. A sealing cover is rotatably connected to the top of the feeding port.

[0015] As a further description of the above technical solution:

[0016] The discharge assembly includes a valve, the top of which is fixedly connected to the middle of the bottom wall of the screen box, and a sealing ring is fixedly connected to the outer wall of the valve.

[0017] As a further description of the above technical solution:

[0018] The vibration assembly includes a motor mounting plate, the right side of which is fixedly connected to the right side of the inner wall of the screen box, and vibration motors are connected to the front and rear sides of the top of the motor mounting plate.

[0019] As a further description of the above technical solution:

[0020] A switch is fixedly connected to the right side of the screen box, and the switch is electrically connected to the air pump and the vibration motor respectively.

[0021] As a further description of the above technical solution:

[0022] A switch is fixedly connected to the right side of the screen box, and the switch is electrically connected to the air pump and the vibration motor respectively.

[0023] This utility model has the following beneficial effects:

[0024] 1. In this utility model, the dust extraction mechanism is designed to utilize the dual adsorption effect of activated carbon dust removal plate and montmorillonite plate to filter the dust generated during the screening process, avoid dust pollution in the workshop, improve the working environment, and protect the health of operators. At the same time, the swing door on the left side of the dust removal box facilitates regular cleaning and maintenance, ensuring the continuous and stable dust removal effect.

[0025] 2. In this utility model, the disassembly and assembly mechanism realizes the quick engagement and disassembly of the curved screen through the connecting shaft, mounting shell and locking plate, which facilitates the cleaning of residual agglomerates on the screen or the replacement of the screen. With the high-frequency vibration of the vibration component, it can effectively reduce the residue of kaolin powder agglomerates, improve screening efficiency and material utilization. At the same time, the spring support component reduces equipment vibration loss and extends service life through the elastic buffer structure. Attached Figure Description

[0026] Figure 1 This is a perspective view of a kaolin powder curved surface vibrating screening device proposed in this utility model;

[0027] Figure 2This is a front view of a kaolin powder curved surface vibrating screen device proposed in this utility model;

[0028] Figure 3 This is a schematic diagram of the vibration component of a kaolin powder curved surface vibrating screen device proposed in this utility model;

[0029] Figure 4 This is a cross-sectional view of the transfer shell of a kaolin powder curved surface vibrating screen device proposed in this utility model.

[0030] Figure 5 This is a schematic diagram of the fixed component of a kaolin powder curved surface vibrating screening device proposed in this utility model;

[0031] Figure 6 This is a schematic diagram of the support component of a kaolin powder curved surface vibrating screen device proposed in this utility model.

[0032] Legend:

[0033] 1. Screen box; 2. Dust extraction and removal mechanism; 201. Transfer shell; 202. Dust collection box; 203. Activated carbon dust collection plate; 204. Montmorillonite plate; 205. Air pump; 206. Swing door; 207. Curved screen; 208. Discharge assembly; 2081. Sealing ring; 2082. Valve; 3. Assembly and disassembly mechanism; 301. Connecting shaft; 302. Mounting shell; 303. Slot; 304. Clip; 305. Locking plate; 306. Limiting groove; 3 7. Vibration assembly; 3071. Motor mounting plate; 3072. Vibration motor; 4. Opening assembly; 401. Rotating shaft; 402. Door panel; 403. Handle; 5. Support assembly; 501. Base; 502. Connecting plate one; 503. Limiting post; 504. Spring; 505. Column; 506. Baffle; 507. Connecting plate two; 6. Feeding assembly; 601. Top cover; 602. Feed port; 603. Sealing cover; 7. Switch. Detailed Implementation

[0034] 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.

[0035] Reference Figure 1 , Figure 2 and Figure 3This utility model provides an embodiment of a kaolin powder curved surface vibrating screening device, including a screen box 1. A dust extraction mechanism 2 is provided on the left side of the screen box 1 to absorb dust generated during the kaolin powder screening process. A disassembly and assembly mechanism 3 is provided on the inner wall of the screen box 1 to engage the curved screen 207 and to perform screening through the vibrating curved screen 207. Multiple support components 5 are fixedly connected to the bottom of the screen box 1 to provide stable support for the operation of the equipment. A feeding component 6 is provided at the top of the screen box 1 to pour in the material to be screened. An opening component 4 is provided on the front side. The dust extraction mechanism 2 includes a transfer shell 201. The right side of the transfer shell 201 is connected to the top left side of the screen box 1. The bottom of the transfer shell 201 is connected to a dust collection box 202. Two activated carbon dust collection plates 203 are fixedly connected to the top of the inner wall of the dust collection box 202. Two montmorillonite plates 204 are fixedly connected to the bottom of the inner wall of the dust collection box 202. A swing door 206 is rotatably connected to the left side of the dust collection box 202. A curved screen 207 is provided inside the screen box 1. A discharge component 208 is provided in the middle of the bottom wall of the screen box 1.

[0036] Specifically, a feeding assembly 6 is installed at the top of the screen box 1 for feeding kaolin powder. After the material is fed into the screen box 1 through the feeding port 602, a curved screen 207 is installed inside the screen box 1. The inner wall of the screen box 1 has a disassembly and assembly mechanism 3. Vibration is transmitted to the curved screen 207 through the disassembly and assembly mechanism 3 for screening. This curved design effectively improves screening efficiency and effect. Dust is generated during the screening process. A dust extraction and removal mechanism 2 is installed on the left side of the screen box 1. The dust extraction and removal mechanism 2 includes a transfer shell 201. The right side of the transfer shell 201 is connected to the top left side of the screen box 1. The transfer shell 201 ensures the smooth transfer of dust. The bottom of the sieve box 1 is connected to a dust collection box 202. Two activated carbon dust collection plates 203 are fixedly connected to the top of the inner wall of the dust collection box 202. The activated carbon dust collection plates 203 are used for filtration and screening. Two montmorillonite plates 204 are fixedly connected to the bottom of the inner wall of the dust collection box 202 to further purify the air. A swing door 206 is rotatably connected to the left side of the dust collection box 202. The inside of the dust collection box 202 can be cleaned and maintained through the swing door 206. In addition, an opening component 4 is configured on the front side of the sieve box 1. Opening the opening component 4 allows for the cleaning and replacement of the screen, making it convenient for operators to observe the internal situation and perform necessary operations.

[0037] Reference Figure 3 , Figure 4 and Figure 5The disassembly and assembly mechanism 3 includes a connecting shaft 301. The left side of the connecting shaft 301 is rotatably connected to the left side of the inner wall of the screen box 1, and the right side of the connecting shaft 301 is rotatably connected to a mounting shell 302. The mounting shell 302 is used to support the curved screen 207. A slot 303 is provided on the right side of the mounting shell 302. The left side of the curved screen 207 is engaged with the slot 303. The top front and rear sides of the mounting shell 302 are rotatably connected with clips 304. The bottom of the clips 304 is fixedly connected with a locking plate 305. The front and rear ends of the left side of the top wall of the curved screen 207 are provided with limit grooves 306. The bottom of the locking plate 305 is engaged with the limit grooves 306 to limit the displacement of the curved screen 207 when the equipment vibrates, ensuring that the curved screen 207 is stable. A vibration component 307 is provided on the right side of the inner wall of the screen box 1 to achieve screening through high-frequency vibration.

[0038] Specifically, the disassembly and assembly mechanism 3 achieves convenient disassembly and assembly of the curved screen 207 through mechanical linkage design. The mechanism is equipped with a vibration component 307, with the connecting shaft 301 as the core hub. Its left side is rotatably connected to the left side of the inner wall of the screen box 1 through a bearing, and its right side is rotatably connected to the mounting shell 302 through a bushing assembly, providing a movable fulcrum for the installation and disassembly of subsequent components. The mounting shell 302 serves as the main carrier of the curved screen 207. The slot 303 on its right side is adapted to the flange structure on the left side of the curved screen 207. The initial positioning is achieved through a plug-in design. On the front and rear sides of the top of the mounting shell 302, there are symmetrically arranged clips 304. When the operator rotates the clips 304 clockwise, the locking plate 305 fixedly connected at the bottom rotates and descends. Its lower protrusion is tightly engaged with the limiting grooves 306 at the front and rear ends of the left side of the top wall of the curved screen 207, forming a double locking structure. When the vibration component 307 vibrates at high frequency, it ensures that the screen is stable and does not shift during the screening process.

[0039] Reference Figure 1 , Figure 2 and Figure 6 The opening component 4 includes a rotating shaft 401, the top of which is rotatably connected to the top front side of the screen box 1. A door panel 402 is rotatably connected to the front side of the rotating shaft 401, and a handle 403 is fixedly connected to the front side of the door panel 402 to open and close the door, making it convenient to observe the condition of the screen box 1 and perform maintenance. The support component 5 includes multiple bases 501, and a connecting plate 502 is fixedly connected to the bottom of each of the multiple bases 501. Limiting posts 503 are fixedly connected to the four corners of the bottom of the connecting plate 502. Multiple springs 504 are fixedly connected to the middle of the bottom wall of the connecting plate 502. The springs 504 play a buffering role to buffer the vibration generated during the operation of the equipment. A connecting plate 507 is fixedly connected to the bottom end of the springs 504. The bottom ends of the multiple limiting posts 503 are slidably connected to the inside of the connecting plate 507. A column 505 is fixedly connected to the bottom of the connecting plate 507. A baffle 506 is fixedly connected to the outer wall of the connecting plate 502 to prevent debris from entering the support component 5.

[0040] Specifically, the front of the screen box 1 is connected to the opening assembly 4. The opening assembly 4, with the rotating shaft 401 as its core, forms the rotation fulcrum of the door panel 402. The front of the rotating shaft 401 is connected to the door panel 402 to realize the opening and closing action. The handle 403 is fixedly mounted on the front of the door panel 402. It conforms to the ergonomic design and provides a convenient force point for opening and closing the door panel 402. Multiple support assemblies 5 are fixedly connected to the bottom of the screen box 1. These assemblies are composed of multiple bases 501. Each base 501 has a connecting plate 502 fixedly connected to its bottom. At the four corners of the bottom of the connecting plate 502, limit posts 503 are vertically fixed, which not only serve as structural reinforcement... In addition to its stabilizing function, it also provides guiding constraints for the displacement of the equipment during operation. Multiple springs 504 are connected to the middle of the bottom wall of the first connecting plate 502. The bottom end of the spring 504 is fixedly connected to the top of the second connecting plate 507 to form an elastic buffer structure to absorb the vibration generated during the screening process. The bottom end of the limiting column 503 penetrates the second connecting plate 507 and slides inside it to ensure the stability of the spring 504 when it is compressed and extended. The bottom of the second connecting plate 507 is fixedly connected to the column 505, which directly contacts the ground to support the equipment. The baffle 506 set around the outer wall of the first connecting plate 502 can prevent external debris from entering the interior of the support component 5 and ensure its normal operation.

[0041] Reference Figure 1 , Figure 2 and Figure 4 The feeding assembly 6 includes a top cover 601, the bottom of which is connected to the top of the screen box 1. A feed inlet 602 is connected to the top right side of the top cover 601, through which material is poured. A sealing cap 603 is rotatably connected to the top of the feed inlet 602 to ensure the equipment's airtightness. The discharging assembly 208 includes a valve 2082 to control the discharge of material. The top of the valve 2082 is fixedly connected to the middle of the bottom wall of the screen box 1, and a sealing cap 603 is fixedly connected to the outer wall of the valve 2082. A sealing ring 2081 is used to prevent material leakage. The vibration assembly 307 includes a motor fixing plate 3071 that carries the motor. The right side of the motor fixing plate 3071 is fixedly connected to the right side of the inner wall of the screen box 1. Vibration motors 3072 are connected to the top front and rear sides of the motor fixing plate 3071. The vibrating curved screen 207 screens the material. A switch 7 is fixedly connected to the right side of the screen box 1 to control the start and stop of the equipment. The switch 7 is electrically connected to the air pump 205 and the vibration motor 3072 respectively.

[0042] Specifically, the top of the screen box 1 is connected to a feeding assembly 6, which is mainly composed of a top cover 601. Its right top is vertically connected to the feeding port 602, forming a material inlet channel. A sealing cover 603 is rotatably connected to the top of the feeding port 602, which is closed when not in use to prevent dust overflow and debris from entering the screen box 1. A discharge assembly 208 is located in the middle of the bottom wall of the screen box 1. This assembly uses a valve 2082, the top of which is bolted to the middle of the bottom wall of the screen box 1. A sealing ring 2081 is installed around the outer wall of the valve 2082. After material screening, opening the sealing ring 2081 and valve 2082 allows material to be discharged. The screen box 1 is equipped with a disassembly and assembly mechanism 3. The mounting mechanism 3 is equipped with a vibration component 307. This component uses a motor mounting plate 3071 as its bearing base. Its right side is fixedly connected to the right side of the inner wall of the screen box 1, providing installation support. Two vibration motors 3072 are symmetrically installed on the top of the motor mounting plate 3071. High-frequency vibration is generated by the rotation of the eccentric block and transmitted to the curved screen 207 through the screen box 1 to achieve efficient screening of kaolin powder. In addition, the switch 7 fixedly mounted on the right side of the screen box 1 serves as the central control element of the equipment. It is electrically connected to the air pump 205 in the dust extraction mechanism 2 and the vibration motor 3072 of the vibration component 307 through wires. The operator can start and stop the relevant components with one button through the switch 7 to realize intelligent control of the equipment.

[0043] Working principle: Open the top cover 601 and pour the material into the screen box 1 through the feed port 602. After turning on the switch 7, the material is transmitted to the curved screen 207 through the vibration component 307 connected to the right side of the inner wall of the screen box 1. The vibration motor 3072 of the vibration component 307 vibrates at high frequency and is transmitted to the curved screen 207 through the motor fixing plate 3071. The arc design of the curved screen 207 makes the material projectile. The fine powder falls into the bottom of the screen box 1 through the screen holes and is discharged by the valve 2082 of the discharge component 208. The dust generated during the screening process is driven by the air pump 205 of the dust extraction and dust removal mechanism 2 and sucked into the dust removal box 202 through the transfer shell 201. First, the dust particles are adsorbed by the activated carbon dust removal plate 203 at the top and then the harmful gases are further filtered by the montmorillonite plate 204 at the bottom. The purified air is discharged and the dust is deposited at the bottom of the dust removal box 202 and cleaned regularly through the swing door 206.

[0044] Furthermore, the connecting shaft 301 of the disassembly and assembly mechanism 3 rotates to install the housing 302, and after the left side of the curved screen 207 is inserted into the slot 303, the locking plate 305 is embedded into the limiting slot 306 through the clip 304 to fix the screen. The spring 504 of the support component 5 absorbs the vibration energy of the equipment, the limiting column 503 restricts the displacement direction of the connecting plate 2 507 to avoid violent shaking, the baffle 506 prevents debris from entering and affecting the buffering effect, and the top cover 601, the sealing ring 2081 of the valve 2082 and the screen box 1 form a closed space to achieve low dust screening.

[0045] Finally, it should be noted that the above description is only a preferred embodiment of the present utility model and is not intended to limit the present utility model. Although the present utility model has been described in detail with reference to the foregoing embodiments, those skilled in the art can still modify the technical solutions described in the foregoing embodiments or make equivalent substitutions for some of the technical features. Any modifications, equivalent substitutions, improvements, etc., made within the spirit and principles of the present utility model should be included within the protection scope of the present utility model.

Claims

1. A kaolin powder curved surface vibrating screen, comprising a screen box (1), characterized in that, A dust extraction mechanism (2) is provided on the left side of the sieve box (1). The dust extraction mechanism (2) is used to absorb the dust generated during the kaolin powder sieving process. A disassembly and assembly mechanism (3) is provided on the inner wall of the sieve box (1) to engage the curved screen (207) and to perform sieving through the vibrating curved screen (207). Multiple support components (5) are fixedly connected to the bottom of the sieve box (1) to provide stable support for the operation of the equipment. A feeding component (6) is provided on the top of the sieve box (1) to pour in the material to be sieved. An opening component (4) is provided on the front side of the sieve box (1). The dust extraction mechanism (2) The system includes a transfer shell (201), the right side of which is connected to the top left side of the screen box (1), and the bottom of which is connected to a dust collector (202). The top of the inner wall of the dust collector (202) is fixedly connected to two activated carbon dust collector plates (203), and the bottom of the inner wall of the dust collector (202) is fixedly connected to two montmorillonite plates (204). The left side of the dust collector (202) is rotatably connected to a swing door (206). The screen box (1) is equipped with a curved screen (207), and the bottom wall of the screen box (1) is equipped with a discharge assembly (208).

2. The kaolin powder curved surface vibrating screen equipment according to claim 1, characterized in that, The disassembly and assembly mechanism (3) includes a connecting shaft (301). The left side of the connecting shaft (301) is rotatably connected to the left side of the inner wall of the screen box (1). The right side of the connecting shaft (301) is rotatably connected to an installation shell (302). A slot (303) is provided on the right side of the installation shell (302). The left side of the curved screen (207) is engaged with the slot (303). The front and rear sides of the top of the installation shell (302) are rotatably connected with clips (304). A locking plate (305) is fixedly connected to the bottom of the clips (304). Limiting grooves (306) are provided at the front and rear ends of the left side of the top wall of the curved screen (207). The bottom of the locking plate (305) is engaged with the limiting groove (306). A vibration assembly (307) is provided on the right side of the inner wall of the screen box (1).

3. The kaolin powder curved surface vibrating screen equipment according to claim 1, characterized in that, The opening assembly (4) includes a rotating shaft (401), the top of which is rotatably connected to the top of the front side of the sieve box (1), and a door panel (402) is rotatably connected to the front side of the rotating shaft (401). A handle (403) is fixedly connected to the front side of the door panel (402).

4. The kaolin powder curved surface vibrating screen equipment according to claim 1, characterized in that, The support assembly (5) includes multiple bases (501), and a connecting plate (502) is fixedly connected to the bottom of each of the multiple bases (501). Limiting posts (503) are fixedly connected to the four corners of the bottom of the connecting plate (502). Multiple springs (504) are fixedly connected to the middle of the bottom wall of the connecting plate (502). A connecting plate (507) is fixedly connected to the bottom of the springs (504). The bottom ends of the multiple limiting posts (503) are slidably connected to the inside of the connecting plate (507). A column (505) is fixedly connected to the bottom of the connecting plate (507). A baffle (506) is fixedly connected to the outer wall of the connecting plate (502).

5. The kaolin powder curved surface vibrating screen equipment according to claim 1, characterized in that, The feeding assembly (6) includes a top cover (601), the bottom of which is connected to the top of the screen box (1), and the top right side of the top cover (601) is connected to a feeding port (602), and the top of the feeding port (602) is rotatably connected to a sealing cover (603).

6. The kaolin powder curved surface vibrating screen equipment according to claim 1, characterized in that, The discharge assembly (208) includes a valve (2082), the top of which is fixedly connected to the middle of the bottom wall of the screen box (1), and a sealing ring (2081) is fixedly connected to the outer wall of the valve (2082).

7. The kaolin powder curved surface vibrating screen equipment according to claim 2, characterized in that, The vibration assembly (307) includes a motor fixing plate (3071), the right side of which is fixedly connected to the right side of the inner wall of the screen box (1), and vibration motors (3072) are connected to the front and rear sides of the top of the motor fixing plate (3071).

8. The kaolin powder curved surface vibrating screen equipment according to claim 7, characterized in that, A switch (7) is fixedly connected to the right side of the sieve box (1), and the switch (7) is electrically connected to the air pump (205) and the vibration motor (3072) respectively.

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