Screen plate device of boiling dryer

Abstract

The utility model belongs to the field of drying equipment, and particularly relates to a boiling dryer screen plate device which comprises an upper screen plate and a lower screen plate, a plurality of first U-shaped ventilation holes are fixedly formed in the top of the upper screen plate, a plurality of second U-shaped ventilation holes are formed in the bottom of the lower screen plate, and a limiting column is fixedly installed in the middle of the top of the lower screen plate. The outer side of the limiting column is sleeved with a bearing, and a clamping hole is formed in the middle of the upper screen plate. Through the structural design of the upper screen plate, the lower screen plate, the first U-shaped ventilation holes, the second U-shaped ventilation holes, the limiting columns, the bearings and the clamping holes and through mutual cooperation of the structures, the function that the openings of the air holes can be adjusted is achieved, adjustment can be conducted according to the characteristics of specific materials, the optimal treatment effect is achieved, and the purpose of improving the flexibility of the screen plates is achieved; meanwhile, time wasted by frequently replacing the screen plate is avoided, and in conclusion, the problem that flexibility is insufficient due to the fact that the aperture of the screen plate is fixed is solved.

Description

Technical Field

[0001] This utility model relates to the field of drying equipment, specifically a fluidized bed dryer screen plate device. Background Technology

[0002] A fluidized bed dryer, also known as a boiling bed dryer, is a type of drying equipment that typically consists of a heater, a fluidized bed main unit, a cyclone separator, a bag filter, an induced draft fan, and an operating platform. The fluidized bed dryer's mesh plate device improves powder flowability and reduces dust emissions through powder granulation. It also improves the solubility of powders through granulation, completing mixing, granulation, and drying in a single step. In related technologies, the fluidized bed dryer's mesh plate device is equipped with mesh plates with multiple rows of straight holes. Material enters from the dryer's inlet and reaches the top of the mesh plate. At this point, gas from below the mesh plate passes through the straight holes to dry the material on the mesh plate. After drying, the material is discharged from the dryer's outlet.

[0003] Currently, most fluidized bed dryer screens on the market have a single type of opening and a fixed aperture size. This means that a single screen can only be used for specific types of materials and cannot be widely applied to various production needs. When faced with materials of different particle sizes, it may affect the drying effect and material flowability.

[0004] Therefore, a fluidized bed dryer mesh plate device is proposed to address the above problems. Utility Model Content

[0005] To overcome the shortcomings of existing technologies, such as the lack of flexibility caused by the fixed aperture of the mesh plate, this utility model provides a mesh plate device for a boiling dryer.

[0006] The technical solution adopted by this utility model to solve its technical problem is: a fluidized bed dryer screen plate device, including an upper screen plate and a lower screen plate. The top of the upper screen plate is fixedly provided with a plurality of first U-shaped ventilation holes, and the bottom of the lower screen plate is provided with a plurality of second U-shaped ventilation holes. A limiting post is fixedly installed in the middle part of the top of the lower screen plate, and a bearing is sleeved on the outer side of the limiting post. A locking hole is provided in the middle part of the upper screen plate, and the locking hole is tightly fitted with the outer ring of the bearing.

[0007] Preferably, a sliding rod is fixedly installed at the middle part of the top of the limiting post, and a stop plate is fixedly installed at the top of the sliding rod.

[0008] Preferably, a return spring is sleeved on the surface of the slide rod, and an assembly block is movably mounted on the surface of the slide rod and at the bottom of the return spring.

[0009] Preferably, pins are fixedly installed on the bottom of both sides of the assembly block, and limit plates are fixedly installed on the surface of the pins, with rounded corners at the bottom ends of the pins.

[0010] Preferably, the top of the upper mesh plate has several first positioning holes, and the bottom of the lower mesh plate has several second positioning holes.

[0011] Preferably, the outer side of the lower mesh plate is provided with an annular groove, and a sealing ring is movably installed inside the annular groove.

[0012] Preferably, the edges of the first U-shaped ventilation hole are chamfered on both the upper and lower sides.

[0013] The beneficial effects of this utility model are:

[0014] 1. This utility model, through the structural design of the upper screen plate, lower screen plate, first U-shaped ventilation hole, second U-shaped ventilation hole, limiting post, bearing, and locking hole, and through the mutual cooperation between the structures, realizes the function of adjustable vent opening. This allows for adjustment according to the characteristics of specific materials to achieve the best processing effect, thereby increasing the flexibility of the screen plate and avoiding the time wasted by frequent screen plate replacements. It also solves the problem of insufficient flexibility caused by fixed screen plate hole diameter.

[0015] 2. This utility model, through the setting of annular groove and sealing ring, facilitates the increase of the sealing at the connection after the mesh plate is installed, thereby achieving the purpose of preventing airflow leakage and improving drying efficiency. Attached Figure Description

[0016] To more clearly illustrate the technical solutions in the embodiments of this utility model or the prior art, the drawings used in the description of the embodiments or the prior art 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.

[0017] Figure 1 This is a schematic diagram of the overall frontal three-dimensional structure of this utility model;

[0018] Figure 2 This is a three-dimensional enlarged structural diagram of the lower mesh plate of this utility model;

[0019] Figure 3 This is a three-dimensional bottom view of the mesh board of this utility model;

[0020] Figure 4 This is a schematic diagram of the overall right-side sectional planar structure of this utility model.

[0021] In the diagram: 1. Upper mesh plate; 2. Lower mesh plate; 3. First U-shaped ventilation hole; 4. Second U-shaped ventilation hole; 5. Limiting post; 6. Bearing; 7. Locking hole; 8. Sliding rod; 9. Support plate; 10. Return spring; 11. Assembly block; 12. Pin; 13. Limiting plate; 14. First positioning hole; 15. Second positioning hole; 16. Annular groove; 17. Sealing ring. Detailed Implementation

[0022] 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 scope of protection of the present utility model.

[0023] The following is in conjunction with the appendix Figure 1-4 This application will be described in further detail.

[0024] This application discloses a fluidized bed dryer mesh plate device, including an upper mesh plate 1 and a lower mesh plate 2. The top of the upper mesh plate 1 is fixedly provided with a plurality of first U-shaped ventilation holes 3, and the bottom of the lower mesh plate 2 is provided with a plurality of second U-shaped ventilation holes 4. A limiting post 5 is fixedly installed in the middle part of the top of the lower mesh plate 2, and a bearing 6 is sleeved on the outside of the limiting post 5. A locking hole 7 is provided in the middle part of the upper mesh plate 1, and the locking hole 7 is tightly fitted with the outer ring of the bearing 6.

[0025] Reference Figure 1 , Figure 2 , Figure 3 , Figure 4 The structure design of the upper screen plate 1, lower screen plate 2, first U-shaped ventilation hole 3, second U-shaped ventilation hole 4, limiting post 5, bearing 6, and locking hole 7 enables the adjustable opening of the air hole. This allows for adjustments based on the characteristics of the specific material to achieve the best processing effect, thereby increasing the flexibility of the screen plate and avoiding the time wasted by frequently changing the screen plate.

[0026] A sliding rod 8 is fixedly installed at the middle part of the top of the limiting post 5, and a stop plate 9 is fixedly installed at the top of the sliding rod 8.

[0027] Reference Figure 2 and Figure 4 The slide bar 8 provides space for the assembly block 11 to move up and down, making it easy to remove the pin 12 and rotate the mesh plate 1 to adjust the size of the ventilation hole. The abutment plate 9 helps to limit the assembly block 11, preventing it from rising too much and detaching from the slide bar 8. At the same time, it can also generate a relative force on the return spring 10 so that the return spring 10 can exert downward pressure on the assembly block 11.

[0028] A return spring 10 is fitted on the surface of the slide bar 8, and an assembly block 11 is movably mounted on the surface of the slide bar 8 and at the bottom of the return spring 10.

[0029] Reference Figure 4 The return spring 10 facilitates the movement space of the assembly block 11 by utilizing its deformation characteristics, and also allows it to be quickly reset.

[0030] Pins 12 are fixedly installed on the bottom of both sides of the assembly block 11. Limiting plates 13 are fixedly installed on the surface of the pins 12, and the bottom end of the pins 12 is rounded.

[0031] Reference Figure 4 The pin 12 facilitates the fixing of the upper mesh plate 1 and the lower mesh plate 2 by engaging with the first positioning hole 14 and the second positioning hole 15, thus preventing the upper mesh plate 1 from rotating due to airflow during operation. The limiting plate 13 facilitates the transmission of the downward pressure of the reset spring 10, thereby preventing the upper mesh plate 1 from jumping.

[0032] The top of the mesh plate 1 has several first positioning holes 14, and the bottom of the lower mesh plate 2 has several second positioning holes 15.

[0033] Reference Figure 2 and Figure 3 The first positioning hole 14 and the second positioning hole 15 facilitate the fixing of the mesh plate with the pin 12, and at the same time, they can also meet the purpose of flexibly adjusting the size of the ventilation holes.

[0034] An annular groove 16 is provided on the outer side of the lower mesh plate 2, and a sealing ring 17 is movably installed inside the annular groove 16.

[0035] Reference Figure 1 , Figure 2 , Figure 4 The annular groove 16 and the sealing ring 17 facilitate the sealing of the joint after the mesh plate is installed, thereby preventing air leakage and improving drying efficiency.

[0036] The edges of the first U-shaped ventilation hole 3 on both the top and bottom sides are chamfered.

[0037] Reference Figure 1 and Figure 3 The chamfer at the bottom of the first U-shaped ventilation hole 3 can initially compress the airflow, thereby increasing the impact force of the airflow on the material and thus increasing the rolling of the material. The chamfer at the top of the first U-shaped ventilation hole 3 can increase the airflow release area, so that the material is fully dried, thereby increasing the material drying efficiency.

[0038] Working principle: When using this device, pull the assembly block 11 upwards. The assembly block 11 compresses the return spring 10. The return spring 10 is deformed and compressed after being pressed by the assembly block 11 and limited by the abutment plate 9, providing space for the assembly block 11 to move. The assembly block 11 drives the pin 12 to rise. As the pin 12 rises, the upper mesh plate 1 and the lower mesh plate 2 lose their limit. The upper mesh plate 1 is rotated by the bearing 6 in cooperation with the limiting post 5. The size of the ventilation holes is adjusted by the first U-shaped ventilation hole 3 and the second U-shaped ventilation hole 4. When the size of the ventilation hole is suitable for the material, the assembly block 11 is released. The tension released by the return spring 10 pushes the assembly block 11 down. The assembly block 11 drives the pin 12 down. The pin 12 is initially positioned by the first positioning hole 14. After the pin 12 descends and is inserted into the second positioning hole 15, the positioning of the upper mesh plate 1 and the lower mesh plate 2 is completed. At this time, the bottom of the limiting plate 13 presses the top of the upper mesh plate 1.

[0039] The foregoing has shown and described the basic principles, main features, and advantages of this utility model. Those skilled in the art should understand that this utility model is not limited to the above embodiments. The embodiments and descriptions in the specification are merely illustrative of the principles of this utility model. Various changes and modifications can be made to this utility model without departing from its spirit and scope, and all such changes and modifications fall within the scope of the claimed utility model.

Claims

1. A fluidized bed dryer screen plate device, characterized in that: It includes a top plate (1) and a bottom plate (2); the top of the top plate (1) is provided with a number of first U-shaped ventilation holes (3), the bottom of the bottom plate (2) is provided with a number of second U-shaped ventilation holes (4), a limiting post (5) is fixedly installed in the middle part of the top of the bottom plate (2), a bearing (6) is sleeved on the outside of the limiting post (5), and a locking hole (7) is provided in the middle part of the top plate (1), the locking hole (7) is tightly fitted with the outer ring of the bearing (6).

2. The fluidized bed dryer mesh plate device according to claim 1, characterized in that: A sliding rod (8) is fixedly installed at the middle part of the top of the limiting post (5), and a stop plate (9) is fixedly installed at the top of the sliding rod (8).

3. The fluidized bed dryer screen plate device according to claim 2, characterized in that: A return spring (10) is sleeved on the surface of the slide rod (8), and an assembly block (11) is movably mounted on the surface of the slide rod (8) and at the bottom of the return spring (10).

4. The fluidized bed dryer mesh plate device according to claim 3, characterized in that: Pins (12) are fixedly installed on the bottom of both sides of the assembly block (11), and limit plates (13) are fixedly installed on the surface of the pins (12). The bottom end of the pins (12) is provided with rounded corners.

5. The fluidized bed dryer screen plate device according to claim 4, characterized in that: The top of the mesh plate (1) is provided with a number of first positioning holes (14), and the bottom of the lower mesh plate (2) is provided with a number of second positioning holes (15).

6. The fluidized bed dryer screen plate device according to claim 5, characterized in that: The lower mesh plate (2) has an annular groove (16) on its outer side, and a sealing ring (17) is movably installed inside the annular groove (16).

7. The fluidized bed dryer screen plate device according to claim 5, characterized in that: The first U-shaped ventilation hole (3) has chamfers on both the upper and lower edges.

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