Wide-angle atomizing disc

Abstract

The utility model discloses a wide-angle atomizing disc, which relates to the technical field of centrifugal atomizing equipment and comprises a plurality of discharge holes with different angles, the discharge holes are distributed in a divergent manner in a direction perpendicular to a rotating plane of the atomizing disc, and the discharge holes with different angles are distributed in different radial directions of the atomizing disc. The discharging holes are evenly distributed in radial areas of the atomizing disc in different radial directions, and the discharging holes in the radial areas are distributed in a central symmetry mode with the axis of the atomizing disc as the center. According to the utility model, the spraying angle and the spraying area in the vertical direction are increased, the atomizing effect is optimized, and the spraying efficiency is improved.

Description

Technical Field

[0001] The utility model relates to the technical field of centrifugal atomization equipment, and particularly relates to a wide-angle atomization disk. Background Art

[0002] Generally, a centrifugal atomizer uses a high-speed motor to drive a gearbox. After speed change, the power is transmitted to the main shaft. The atomization disk is installed at the lower end of the main shaft. Materials enter the distributor from the feed pipe from top to bottom. The distributor evenly distributes the liquid material into the atomization disk for centrifugal atomization to obtain a product with smaller particles. The side of the atomization disk is provided with discharge holes. The materials move outward under the action of centrifugal force and are sprayed out of the discharge holes to achieve atomization. The traditional atomization disk generally has a circle of horizontal discharge holes. The angle at which the materials are ejected from the discharge holes is fixed and very limited. The vertical range of the materials ejected from the discharge holes is small, and the particle uniformity is not high, which affects the atomization effect. Moreover, when the atomization disk sprays the inner wall of some containers, the spraying area of the traditional atomization disk is small, resulting in low spraying efficiency. Content of the Utility Model

[0003] Technical Problem to be Solved by the Utility Model

[0004] Aiming at the technical problems that the angle at which the materials of the traditional atomization disk are ejected from the discharge holes is fixed and very limited, the vertical range of the materials ejected from the discharge holes is small, the particle uniformity is not high, which affects the atomization effect, and the spraying area is small, resulting in low spraying efficiency, the utility model provides a wide-angle atomization disk, which increases the spraying angle and spraying area in the vertical direction, optimizes the atomization effect, and improves the spraying efficiency.

[0005] Technical Solution

[0006] To solve the above problems, the technical solution provided by the utility model is as follows:

[0007] A wide-angle atomization disk includes a plurality of discharge holes at different angles. The discharge holes are divergently distributed in a direction perpendicular to the rotation plane of the atomization disk. The discharge holes at different angles are distributed in different radial directions of the atomization disk. The discharge holes are evenly distributed in the radial regions in different radial directions of the atomization disk, and the discharge holes in the radial regions are symmetrically distributed with respect to the axis center of the atomization disk.

[0008] The discharge holes are divergently distributed in the direction perpendicular to the rotation plane of the atomization disk, which expands the spraying angle of the spray and increases the spraying area. The atomization disk is a rotating body. In the vertical section of the rotating body, the discharge holes above are inclined upward, and the discharge holes below are inclined downward, forming a divergent spraying structure, thereby increasing the spraying angle in the direction perpendicular to the rotation plane of the atomization disk. The discharge holes at different angles, namely the discharge holes above, in the middle, and below, the discharge holes in the middle are the same as the traditional discharge holes and are horizontally arranged. The discharge holes at different angles are distributed in different radial directions to avoid interference between the discharge holes, enabling the discharge holes to form a complete channel, ensuring that the fluid path of the atomized material is a pressurized spraying path from a small diameter, and preventing the appearance of gaps in the channel from affecting the uniformity of the material spraying and the particle size, thereby affecting the atomization effect. The discharge holes are evenly distributed in the radial regions at different radial positions of the atomization disk, and the discharge holes in the radial regions are symmetrically distributed about the axis center of the atomization disk, which can balance the dynamic balance of the rotation of the atomization disk, avoid imbalance leading to severe wear and damage of the atomization disk, and thus extend the service life.

[0009] Optionally, the discharge holes are fitted with nozzles.

[0010] The nozzles can be replaced. When worn, they can be directly replaced, extending the service life of the atomization disk.

[0011] Optionally, one end of the nozzle is provided with a ring protrusion, and the ring protrusion is engaged and limited with the inner wall of the atomization disk.

[0012] The ring protrusion is used to engage and limit the nozzle, making the nozzle more stable and not easily carried out of the atomization disk by the material.

[0013] Optionally, the inner surface of the nozzle is provided with a wear-resistant coating.

[0014] The wear-resistant coating can significantly reduce internal wear, which is particularly important for nozzles working for a long time.

[0015] Optionally, the outer end of the discharge hole is provided with an outward expansion opening.

[0016] The outward expansion opening can further expand the spraying angle of the material, increase the spraying area of the material in the direction perpendicular to the rotation plane of the atomization disk, and can also make the material particles more dispersed, achieving a more atomized spraying effect.

[0017] Optionally, the inner end of the discharge hole is provided with an inward expansion opening.

[0018] The inner flared opening increases the angle between the material and the inner orifice of the discharge hole. Since the material moves centrifugally and impacts the discharge hole, the discharge hole without the inner flared opening is prone to wear due to the small contact angle, and the number of particles of the material entering the discharge hole is limited due to the aperture of the discharge hole. After adding the inner flared opening, more material enters the discharge hole, and the contact angle becomes larger and is not easily worn.

[0019] Optionally, a nozzle is adapted to the discharge hole, and the inner end of the nozzle is arranged in close fit with the inner flared opening of the discharge hole.

[0020] The inner end of the nozzle is in close fit with the inner flared opening of the discharge hole. This fit can ensure the smooth flow of the material before entering the nozzle, avoiding the infiltration of the material into the gaps and causing unnecessary turbulence.

[0021] Optionally, the disk body is an integrally formed structure.

[0022] The integrally formed structure has high structural strength and rigidity, without seams or welds, reducing potential weak points, and can better resist deformation and wear under high-speed rotation and high-pressure conditions.

[0023] Advantageous Effects

[0024] Adopting the technical solution provided by the present utility model, compared with the prior art, it has the following advantageous effects:

[0025] In the technical solution provided by the present utility model, the discharge holes are divergently distributed in the direction perpendicular to the rotation plane of the atomizing disk, expanding the spray angle and increasing the spray area. The atomizing disk is a rotating body. In the vertical cross-section of the rotating body, the discharge holes above are inclined upward, and the discharge holes below are inclined downward, forming a divergent spray structure, thereby increasing the spray angle in the direction perpendicular to the rotation plane of the atomizing disk. The discharge holes at different angles, that is, the discharge holes above, in the middle, and below, the discharge holes in the middle are the same as the traditional discharge holes and are horizontally arranged. The discharge holes at different angles are distributed in different radial directions, which can avoid interference between the discharge holes, make the discharge holes form a complete channel, ensure that the fluid path of the atomized material is a small-diameter pressurized spray path, and avoid the influence of the uniformity of the material spray and the particle size due to the gap in the channel, affecting the atomization effect. The discharge holes are evenly distributed in the radial regions at different radial positions of the atomizing disk, and the discharge holes in the radial regions are symmetrically distributed with the axis of the atomizing disk as the center, which can balance the dynamic balance of the rotation of the atomizing disk, avoid imbalance leading to serious wear and damage of the atomizing disk, and thus extend the service life. BRIEF DESCRIPTION OF THE DRAWINGS

[0026] Figure 1 FIG. is a schematic structural diagram of a wide-angle atomizing disk proposed by an embodiment of the present utility model;

[0027] Figure 2 Partial structural schematic diagram of a wide-angle atomizing disk proposed for an embodiment of the present utility model;

[0028] 1. Feed inlet; 2. Cavity; 3. Middle discharge hole; 301. Middle outer expansion port; 302. Middle nozzle; 303. Middle inner expansion port; 4. Upper discharge hole; 401. Upper outer expansion port; 402. Upper nozzle; 403. Upper inner expansion port; 5. Lower discharge hole; 501. Lower outer expansion port; 502. Lower nozzle; 503. Lower inner expansion port; 6. Annular convex edge; 7. Arc-shaped ring groove; 8. Buffer step; 9. Shaft hole; 10. Radial region. Detailed implementation manners

[0029] To further understand the content of the present utility model, the present utility model will be described in detail in conjunction with the accompanying drawings and embodiments.

[0030] Embodiment

[0031] Combined with the attached Figure 1 , a wide-angle atomizing disk includes a disk body. The disk body is an integrally formed rotating body. A feed inlet 1 is provided at the top. The feed inlet 1 is annular. A shaft hole 9 is provided on the axis of the disk body. The shaft hole 9 is fixedly connected to a transmission shaft through bolts and nuts. The transmission shaft is connected to a high-speed motor, and after rotation, it drives the atomizing disk to rotate for centrifugal atomization. The shaft hole 9 is conical and is adapted to the end of the transmission shaft, which can better limit and fix in the axial direction and improve the structural stability. An annular convex edge 6 extending from the disk body is provided on the outer side of the feed inlet 1, which can prevent the material from falling into the disk body and being thrown out from above during high-speed rotation. The feed inlet 1 communicates with the cavity 2. An arc-shaped ring groove and a buffer step 8 are provided below the inner side of the cavity 2. When the material enters the cavity 2 of the disk body from above, it has an impact force. The arc-shaped ring groove can direct the downward impact force into an outward acting force, reduce the impact force on the inner wall of the disk body, reduce wear and extend the service life. When the material enters the cavity 2 of the disk body from above, the material falls from the inner side of the disk body and first contacts the inner wall of the disk body. The buffer step 8 can reduce the falling height of the material, thereby reducing the impact force, reducing wear and extending the service life.

[0032] On the outer side of the cavity 2, that is, on the circumferential side of the disk body, several discharge holes at different angles are provided. The discharge holes are distributed in a divergent manner in the direction perpendicular to the rotation plane of the atomizing disk. The discharge holes at different angles are distributed in different radial directions of the atomizing disk. The discharge holes are evenly distributed in the radial regions 10 in different radial directions of the atomizing disk, such as Figure 1As shown, the discharge holes in the radial region 10 are symmetrically distributed about the axis of the atomizing disk. The discharge holes are divided into upper discharge holes 4, middle discharge holes 3, and lower discharge holes 5. The upper discharge holes 4 spray obliquely upward, the middle discharge holes 3 spray horizontally, and the lower discharge holes 5 spray obliquely downward. The included angle between the upper discharge holes 4 and the lower discharge holes 5 is 30°. One radial region 10 is provided with obliquely arranged upper discharge holes 4, middle discharge holes 3, and lower discharge holes 5, and the radial regions 10 are evenly distributed on the circumferential side of the disk body.

[0033] Combined with the attached Figure 2 , the discharge holes are fitted with nozzles. In this embodiment, upper nozzles 402, middle nozzles 302, and lower nozzles 502 are provided. The upper discharge holes 4 are adapted to the upper nozzles 402, the middle discharge holes 3 are adapted to the middle nozzles 302, and the lower discharge holes 5 are adapted to the lower nozzles 502. The inner and outer ends of the upper discharge hole 4 are respectively an upper inner flared opening 403 and an upper outer flared opening 401. The inner and outer ends of the middle discharge hole 3 are respectively a middle inner flared opening 303 and a middle outer flared opening 301. The inner and outer ends of the lower discharge hole 5 are respectively a lower inner flared opening 503 and a lower outer flared opening 501.

[0034] One end of the nozzle is provided with a ring convex, and the ring convex is engaged and limited with the inner wall of the atomizing disk. During installation, the nozzle can be inserted into the corresponding discharge hole from the cavity 2. After installation, during centrifugal motion, the ring convex of the nozzle is engaged on the wall of the cavity 2, improving the structural stability.

[0035] The inner surface of the nozzle is provided with a wear-resistant coating. In this embodiment, a plasma-sprayed alumina or zirconia coating is used.

[0036] The outer end of the discharge hole is provided with an outer flared opening. The outer flared opening is not suitable for engaging a similar ring convex with the nozzle, and it will be impossible to install. The outer flared opening is a conical opening with an angle of 80° - 100°. The inner end of the discharge hole is provided with an inner flared opening, and the inner flared opening is also a conical opening with an angle of 80° - 100°.

[0037] The inner end of the nozzle and the inner flared opening of the discharge hole are fitted together to prevent material infiltration. At the inner end of the nozzle, that is, the connection between the ring convex and the nozzle, a chamfer is also provided, and the chamfer is closely fitted with the inner flared opening.

[0038] The above schematically describes the present invention and its implementation manners. This description is not restrictive. What is shown in the drawings is only one of the implementation manners of the present invention, and the actual structure is not limited thereto. Therefore, if those of ordinary skill in the art are inspired by it and, without departing from the gist of the present invention, design similar structural manners and embodiments without creative efforts, they shall fall within the protection scope of the present invention.

Claims

1. A wide-angle atomizing disk, characterized in that, It includes a number of discharge holes at different angles. The discharge holes are divergently distributed in a direction perpendicular to the rotation plane of the atomization disk. The discharge holes at different angles are distributed in different radial directions of the atomization disk. The discharge holes are evenly distributed in the radial regions in different radial directions of the atomization disk, and the discharge holes in the radial regions are symmetrically distributed with respect to the axis center of the atomization disk.

2. The wide-angle atomizing disk according to claim 1, characterized in that, Nozzles are fitted to the discharge holes.

3. The wide-angle atomizing disk according to claim 2, wherein A ring convex is provided at one end of the nozzle, and the ring convex is engaged and limited with the inner wall of the atomization disk.

4. The wide-angle atomization disk according to claim 3, characterized in that, A wear-resistant coating is provided on the inner surface of the nozzle.

5. A wide-angle atomizing disk according to claim 1, characterized in that, An outward expansion port is provided at the outer end of the discharge hole.

6. The wide-angle atomization disk according to claim 1 or 5, characterized in that, An inward expansion port is provided at the inner end of the discharge hole.

7. A wide-angle atomizing disc according to claim 6, characterized in that, Nozzles are fitted to the discharge holes, and the inner end of the nozzle is fitted and arranged with the inward expansion port of the discharge hole.

8. A wide-angle atomizing disk according to claim 1, characterized in that, The disk body is an integrally formed structure.

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