A centrifugal atomizer

Abstract

The application relates to the technical field of atomization equipment, and discloses a centrifugal atomizer which comprises a casing, a rotating shaft, an atomization disc and a rotating speed adjusting assembly. The inside of the casing is separated into a turbine chamber and an atomization chamber. The rotating shaft is arranged in the inside of the casing and penetrates through the turbine chamber and the atomization chamber. The rotating shaft is sleeved with rotating blades located in the turbine chamber and a distribution disc located in the atomization chamber. The atomization disc is arranged in the atomization chamber and below the distribution disc. The atomization disc is connected with the bottom of the rotating shaft. The rotating speed adjusting assembly comprises a rotating disc and a plurality of guide vanes which are distributed in the periphery of the rotating disc in the circumferential direction. The rotating disc is rotatably arranged in the turbine chamber. The guide vanes are arranged towards the rotating shaft. All the guide vanes cooperatively form a guide space. The rotating blades are located in the guide space. The centrifugal atomizer can completely abandon the gear box, fundamentally eliminates the heat and power loss generated by gear friction, does not need lubricating medium and forced cooling system, and avoids the risk of lubricant leakage and material pollution.

Description

Technical Field

[0001] This utility model relates to the field of atomization equipment technology, and in particular to a centrifugal atomizer. Background Technology

[0002] With the development of modern industry, the requirements for powder products are becoming increasingly stringent, leading to the emergence of various drying methods and equipment. Currently, centrifugal atomizers are among the most widely used dryers in industrial production for drying certain materials. Mechanical atomizers, in particular, use a motor-driven gearbox to rotate the output shaft, which in turn rotates the atomizing disc, generating centrifugal force to atomize the material and achieve drying. However, this gear transmission process generates heat, resulting in significant power loss. Furthermore, the gearbox requires lubrication and forced cooling via an oil pump, which can easily contaminate the material being dried. Utility Model Content

[0003] In order to solve the above-mentioned technical problems, or at least partially solve the above-mentioned technical problems, this application provides a centrifugal atomizer.

[0004] This application provides a centrifugal atomizer, comprising:

[0005] The housing has an internally separate turbine chamber and atomizing chamber. The housing has a feed inlet, a discharge outlet, a first air inlet, and an air outlet. The feed inlet and the discharge outlet are connected to the atomizing chamber, and the first air inlet and the air outlet are connected to the turbine chamber.

[0006] A rotating shaft is vertically disposed inside the housing and passes through the turbine chamber and the atomizing chamber. A rotating blade located in the turbine chamber and a distributing disc located in the atomizing chamber are sleeved on the rotating shaft. The distributing disc is located below the feed inlet.

[0007] An atomizing disc is disposed in the atomizing chamber and located below the dispensing disc. The atomizing disc is connected to the bottom of the rotating shaft, and the outlet of the atomizing disc is directly opposite the discharge port.

[0008] A speed regulating assembly includes a turntable and a plurality of guide vanes distributed circumferentially around the outer periphery of the turntable. The turntable is rotatably disposed in the turbine chamber. The guide vanes are arranged toward the rotating shaft, and all the guide vanes cooperate to form a guide space. The rotating blades are located within the guide space.

[0009] The connection between the guide vane and the turntable, and the line connecting the two, are taken as the reference axis. The side of the guide vane facing the turntable is the non-working surface, and at least a portion of the non-working surface of the guide vane is inclined to the reference axis.

[0010] In one embodiment, the speed regulating assembly further includes a drive shaft and a drive member. The drive shaft is disposed vertically inside the housing, and one end of the drive shaft passes through the turbine chamber and is connected to the turntable for transmission. The drive member is located outside the housing, and the output shaft of the drive member extends from outside the housing to inside the housing and is connected to the end of the drive shaft away from the turntable.

[0011] In one embodiment, the centrifugal atomizer further includes a first partition and a second partition spaced apart inside the housing. The first partition is located above the second partition, and the turbine chamber is formed between the first partition and the second partition. The atomizing chamber is formed between the second partition and the bottom of the housing. One end of the drive shaft extending into the turbine chamber passes through the first partition and is connected to the turntable.

[0012] In one embodiment, the speed adjustment assembly further includes a connecting shaft and a connecting strip. The first partition has a protrusion on the side surface opposite to the turntable. The connecting shaft is arranged in a vertical direction, and one end of the connecting shaft passes through the first partition and is connected to one end of the connecting strip. The other end passes through the turntable and is connected to the guide vane. The other end of the connecting strip is connected to the protrusion.

[0013] In one embodiment, the centrifugal atomizer further includes at least one rotating bearing disposed in the atomizing chamber and sleeved on the rotating shaft, and the rotating bearing is provided with a plurality of perforations for material to pass through.

[0014] In one embodiment, the centrifugal atomizer further includes two guide plates located below the rotating bearing. The two guide plates are inclinedly disposed in the atomization chamber and are fixedly connected to the inner wall of the housing, respectively. An opening for material to flow out is formed between the close ends of the two guide plates, and the opening is used to guide the material to flow toward the atomizing disc.

[0015] In one embodiment, the housing is further provided with a second air inlet, which is connected to the atomizing chamber and located above the material distribution plate, for introducing airflow into the atomizing chamber to disperse the material.

[0016] In one embodiment, the centrifugal atomizer further includes an air guide shroud, which is fitted around the periphery of the housing. The upper end of the air guide shroud is sealed to the outer surface of the housing, and the lower end of the air guide shroud is spaced apart from the outer surface of the housing to form a waste air chamber with an outlet between the air guide shroud and the outer surface of the housing. The air outlet is connected to the waste air chamber and is used to introduce the airflow discharged from the turbine chamber into the waste air chamber.

[0017] In one embodiment, the air guide shroud includes an integrally connected vertical section and a bent section. The upper end of the vertical section is sealed to the outer surface of the housing, the lower end of the vertical section is connected to one end of the bent section, and the other end of the bent section extends away from the housing to form an angle between the vertical section and the bent section, for guiding the airflow in the exhaust air chamber to flow to the outside of the housing.

[0018] In one embodiment, the centrifugal atomizer further includes a speed sensor and a controller. The top of the rotating shaft extends through the housing and is connected to the speed sensor. The speed sensor and the drive unit are both electrically connected to the controller.

[0019] The technical solutions provided in this application have the following advantages compared with the prior art:

[0020] A clever design incorporates rotating blades fitted onto a rotating shaft. Airflow is then introduced into the turbine chamber through the first air inlet, causing the rotating shaft to rotate by impacting the blades. This, in turn, drives the distribution plate and atomizing plate to rotate synchronously. This completely eliminates the need for a gearbox, fundamentally removing the heat and power loss generated by gear friction. Furthermore, it eliminates the need for lubricating media and forced cooling systems, avoiding the risk of lubricant leakage and contamination of materials. This design is particularly suitable for fields with stringent hygiene requirements, such as food and medical applications.

[0021] In addition, multiple guide vanes are set around the rotating blades to form a guide space. The guide vanes are driven to rotate synchronously by the rotation of the turntable, thereby adjusting the air volume entering the guide space. This can directly change the driving force on the rotating blades and achieve stepless adjustment of the rotation speed. This speed regulation method is flexible in response, has no complex mechanical meshing, further reduces operating noise, and can be adjusted in real time according to material characteristics or process requirements, greatly improving the equipment's adaptability to diverse working conditions. Attached Figure Description

[0022] The accompanying drawings, which are incorporated in and form part of this specification, illustrate embodiments consistent with the present invention and, together with the description, serve to explain the principles of the present invention.

[0023] 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, for those skilled in the art, other drawings can be obtained based on these drawings without creative effort.

[0024] In the attached image:

[0025] Figure 1 This is a schematic diagram of the structure of a centrifugal atomizer according to this application;

[0026] Figure 2 yes Figure 1 A cross-sectional view of AA without the air guide cover;

[0027] Figure 3 This is a schematic diagram of the material distribution plate in a centrifugal atomizer according to this application.

[0028] Icon labels:

[0029] 10. Housing; 10a. Turbine chamber; 10b. Atomizing chamber; 11. First air inlet; 12. Discharge port; 13. Feed inlet; 14. Air outlet; 15. Second air inlet; 20. Rotating shaft; 30. Rotating blades; 40. Distributor plate; 40a. Opening; 40b. Discharge hole; 50. Atomizing disc; 60. Speed ​​adjustment assembly; 61. Turntable; 62. Guide vane; 63. Drive component; 64. Transmission shaft; 65. Connecting shaft; 66. Connecting strip; 70. First partition; 70a. Protrusion; 80. Second partition; 90. Rotating bearing; 90a. Perforation; 100. Guide plate; 100a. Opening; 110. Air guide shroud; 111. Vertical section; 112. Bending section; 120. Exhaust air chamber; X, Vertical direction. Detailed Implementation

[0030] To provide a clearer understanding of the technical features, objectives, and effects of this utility model, the specific embodiments of this utility model are now described in detail with reference to the accompanying drawings. In the following description, it should be understood that the orientations or positional relationships indicated by terms such as "front," "rear," "upper," "lower," "left," "right," "longitudinal," "horizontal," "vertical," "horizontal," "top," "bottom," "inner," "outer," "head," and "tail" are based on the orientations or positional relationships shown in the accompanying drawings, and are constructed and operated in a specific orientation. They are only for the convenience of describing this technical solution and do not indicate that the device or component referred to must have a specific orientation; therefore, they should not be construed as limitations on this utility model.

[0031] It should also be noted that, unless otherwise explicitly specified and limited, terms such as "installation," "connection," "joining," "fixing," and "setting" should be interpreted broadly. For example, they can refer to a fixed connection, a detachable connection, or an integral part; they can refer to a mechanical connection or an electrical connection; they can refer to a direct connection or an indirect connection through an intermediate medium; they can refer to the internal communication of two components or the interaction between two components. When an component is referred to as being "on" or "below" another component, the component can be located "directly" or "indirectly" on the other component, or there may be one or more intermediary components. The terms "first," "second," "third," etc., are only for the convenience of describing this technical solution and should not be construed as indicating or implying relative importance or implicitly specifying the number of indicated technical features. Therefore, features defined with "first," "second," "third," etc., may explicitly or implicitly include one or more of that feature. For those skilled in the art, the specific meaning of the above terms in this utility model can be understood according to the specific circumstances.

[0032] In the following description, specific details such as particular system structures and techniques are set forth for illustrative purposes and not for limitation, in order to provide a thorough understanding of the embodiments of the present invention. However, those skilled in the art will understand that the present invention can be implemented in other embodiments without these specific details. In other instances, detailed descriptions of well-known systems, apparatuses, circuits, and methods are omitted so as not to obscure the description of the present invention with unnecessary detail.

[0033] The technical terms involved in the embodiments of this application are explained and described below.

[0034] The distribution disc 40, also known as the equalizing disc, is a disc-shaped component used to achieve uniform distribution. Its core function is to evenly disperse or distribute the incoming material to subsequent components according to a preset method, thereby ensuring the stability of equipment operation and the consistency of processing results. Specifically applied in a centrifugal atomizer, the distribution disc 40 is located between the feed inlet 13 and the atomizing disc 50. After receiving the material entering from the feed inlet 13, it guides the material through rotation to evenly distribute it onto the atomizing disc 50, ensuring consistent particle size during atomization.

[0035] The atomizing disc 50 is the core component of the centrifugal atomizer that achieves atomization. It disperses and breaks the input material into tiny and uniform droplets through centrifugal force generated by high-speed rotation, thereby achieving the atomization effect.

[0036] Figure 1 This is a schematic diagram of the structure of a centrifugal atomizer according to this application; Figure 2 yes Figure 1 The cross-sectional view of AA without the air guide shroud 110. Please refer to... Figure 1 and Figure 2 This application provides a centrifugal atomizer, which includes a housing 10, a rotating shaft 20, a dispensing disc 40, an atomizing disc 50, and a speed adjustment component 60. The material selection for the housing 10 can be comprehensively considered based on its working environment (such as the properties, temperature, and corrosiveness of the materials it contacts) and functional requirements (such as structural strength and sealing performance). Specifically, in the food processing field, the housing 10 of the centrifugal atomizer is made of stainless steel (e.g., 304, 316 series), which not only ensures that the housing 10 has good corrosion resistance and mechanical strength but also meets food-grade hygiene requirements.

[0037] Specifically, the casing 10 is internally divided into a turbine chamber 10a and an atomizing chamber 10b, which are independent of each other. The casing 10 has an inlet 13, an outlet 12, a first air inlet 11, and an air outlet 14. The inlet 13 and the outlet 12 are connected to the atomizing chamber 10b, and the first air inlet 11 and the air outlet 14 are connected to the turbine chamber 10a. An atomizing disc 50 and a distribution disc 40 are arranged in the atomizing chamber. The distribution disc 40 is located below the inlet 13 to ensure that the material fed into the inlet 13 can fall onto the distribution disc 40 for uniform distribution. The atomizing disc 50 is located below the distribution disc 40, and the outlet of the atomizing disc 50 is directly opposite the outlet 12, so that the material atomized by the atomizing disc 50 can flow out from the outlet 12. A rotating blade 30 is arranged in the turbine chamber 10a, and the rotating shaft 20 is along the vertical direction X (refer to...). Figure 1 The x-direction of the atomizing disc 50 is located inside the housing 10 and passes through the turbine chamber 10a and the atomizing chamber 10b. The dispensing disc 40 and the rotating blade 30 are both fitted onto the shaft of the rotating shaft 20. The atomizing disc 50 is connected to the bottom of the rotating shaft 20.

[0038] In other words, when drying the material, the material is fed into the atomizing chamber 10b through the feed inlet 13 and falls onto the distribution plate 40 located below the feed inlet 13. At this time, external airflow is introduced from the first air inlet 11 to impact the rotating blades 30 in the turbine chamber 10a to rotate, thereby driving the entire rotating shaft 20 to rotate synchronously, so that the distribution plate 40 rotates along with it, so that the concentrated material can be pre-dispersed evenly through centrifugal force, and then falls onto the atomizing plate 50 below. Since the atomizing plate 50 is connected to the bottom of the rotating shaft 20, the atomizing plate 50 is driven to rotate, and the centrifugal force generated by the high-speed rotation further shears and breaks the material into tiny droplets. The atomized droplets are thrown out from the outlet of the atomizing plate 50. Since the outlet of the atomizing plate 50 is directly opposite the discharge port 12, the atomized material is discharged from the atomizing chamber 10b from the discharge port 12, thus completing the purpose of atomization drying.

[0039] In practical applications, the feed inlet 13 is located at the upper part of the housing 10, and the discharge outlet 12 is located at the lower part of the housing 10. This allows the material to fall naturally to the distribution plate 40 below by its own gravity, forming a flow path from top to bottom. No additional power is needed to drive the material conveying, thus achieving smooth material conveying.

[0040] Furthermore, the centrifugal atomizer in this embodiment cleverly incorporates rotating blades 30 fitted onto the rotating shaft 20. Airflow is then introduced into the turbine chamber 10a from the first air inlet 11, causing the rotating shaft 20 to rotate by impacting the rotating blades 30. This, in turn, drives the dispensing disc 40 and the atomizing disc 50 to rotate synchronously. This completely eliminates the need for a gearbox, fundamentally removing the heat and power loss generated by gear friction. It also eliminates the need for lubricating media and forced cooling systems, avoiding the risk of lubricant leakage and contamination of materials. This design is particularly suitable for fields with stringent hygiene requirements, such as food and medical applications.

[0041] Figure 3 This is a schematic diagram of the distribution plate 40 in a centrifugal atomizer according to this application. (Refer to...) Figure 3 The distribution plate 40 has an opening 40a in the middle for fitting onto the rotating shaft 20, and a plurality of dropping holes 40b are distributed circumferentially around the outer periphery of the opening 40a, so that the material falling on the distribution plate 40 can be evenly dropped onto the atomizing plate 50.

[0042] In practical applications, when atomizing different materials, the rotation speed needs to be adjusted according to the material characteristics (e.g., higher rotation speed is required for high-viscosity materials) or process requirements (e.g., different droplet size requirements) to adapt to diverse working conditions. Therefore, in this embodiment, the centrifugal atomizer also includes a rotation speed adjustment component 60. The rotation speed adjustment component 60 includes a turntable 61 and multiple guide vanes 62 circumferentially distributed around the outer periphery of the turntable 61. The turntable 61 is rotatably disposed within the turbine chamber 10a. The guide vanes 62 are arranged facing the rotating shaft 20, and all the guide vanes 62 cooperate to form a guiding space. The rotating blade 30 is located within the guiding space. The reference axis SS is the line connecting the guide vane 62 and the turntable 61 to the rotating shaft 20. The side of the guide vane 62 facing the rotating shaft 20 is the non-working surface, and at least some of the non-working surfaces of the guide vanes 62 are inclined to the reference axis SS.

[0043] In other words, by fixing multiple guide vanes 62 to the outer periphery of the turntable 61, and using the multiple guide vanes 62 to form a guide space, the rotating blade 30 is located within the guide space, and the guide vanes 62 are fixedly connected to the turntable 61. This allows the guide vanes 62 to rotate synchronously by driving the turntable 61 to rotate, thereby changing the distance between the guide vanes 62 and the rotating blade 30 to adjust the airflow entering the guide space. This directly changes the driving force on the rotating blade 30, achieving stepless adjustment of the rotation speed, and thus adjusting the centrifugal force of the atomizing disc 50. This speed regulation method is flexible in response, has no complex mechanical meshing, further reduces operating noise, and allows for real-time adjustment according to material characteristics or process requirements, greatly improving the equipment's adaptability to diverse working conditions.

[0044] It should be noted that the reference axis SS defined above is for the convenience of describing that the guide vane 62 is tilted toward the rotating blade 30, thereby ensuring that the airflow blown in from the first air inlet 11 is guided by the guide vane to the rotating blade.

[0045] In one embodiment, the speed regulating assembly 60 further includes a drive shaft 64 and a drive member 63. The drive shaft 64 is disposed in the housing 10 along the vertical direction X, and one end of the drive shaft 64 passes through the turbine chamber 10a and is connected to the turntable 61 for transmission. The drive member 63 is located outside the housing 10, and the output shaft of the drive member 63 extends from outside the housing 10 to inside the housing 10 and is connected to the end of the drive shaft 64 away from the turntable 61.

[0046] For example, when it is necessary to adjust the rotational speed of the rotating shaft 20, the drive unit 63, as a power source, is connected to the end of the transmission shaft 64 away from the turntable 61 through the output shaft to transmit power to the turntable 61 in the turbine chamber 10a, thereby driving the turntable 61 to rotate. Since the guide vane 62 is fixedly connected to the turntable 61, it can drive the guide vane 62 to rotate synchronously, thereby adjusting the air volume entering the guide space, and finally achieving the adjustment of the rotational speed of the rotating shaft 20.

[0047] Furthermore, the drive unit 63 is located outside the housing 10, with only its output shaft extending from outside the housing 10 to inside and connecting to the drive shaft 64. Both the drive shaft 64 and the output shaft of the drive unit 63 are located within the turbine chamber 10a to prevent lubricant, wear debris, etc., from the drive unit 63 from entering the atomizing chamber 10b and causing material contamination. It should be noted that the drive unit 63 can be an electric actuator, which drives the turntable 61 to rotate by extending and retracting the actuator, thereby controlling the airflow and driving force on the rotating blades 30 by adjusting the opening of the guide vanes 62. The use of an electric actuator for the drive unit 63 is merely an example and is not a limitation.

[0048] Based on the above analysis, it can be seen that the turbine chamber 10a is the power transmission area, where the airflow inside flows at high speed and needs to maintain a stable air pressure; while the atomizing chamber 10b is the core area for material processing (i.e., the material enters from the feed inlet 13, is divided and atomized, and then discharged from the discharge outlet), which needs to avoid external airflow interfering with the material movement. Therefore, the turbine chamber 10a and the atomizing chamber 10b need to be completely isolated to ensure the independent and stable operation of their respective functions. To this end, in one embodiment, the centrifugal atomizer further includes a first partition 70 and a second partition 80 spaced apart inside the housing 10. The first partition 70 is located above the second partition 80, and the turbine chamber 10a is formed between the first partition 70 and the second partition 80. The atomizing chamber 10b is formed between the second partition 80 and the bottom of the housing 10. One end of the drive shaft 64 extends into the turbine chamber 10a, passes through the first partition 70, and is connected to the turntable 61. In other words, by setting a first partition 70 and a second partition 80 at intervals on the inner wall of the housing 10, a turbine chamber 10a is formed between the first partition 70 and the second partition 80, and an atomizing chamber 10b is formed between the second partition 80 and the bottom of the housing 10. This can completely isolate the turbine chamber and the atomizing chamber, preventing the exchange of materials between the two chambers. That is, the high-speed airflow of the turbine chamber 10a will not enter the atomizing chamber 10b and blow away the unatomized material, and the material particles of the atomizing chamber 10b will not enter the turbine chamber 10a and adhere to the rotating blades 30 or the guide vanes 62, affecting the airflow driving efficiency.

[0049] The first baffle 70 serves as the upper boundary of the turbine chamber 10a, providing a radial support point for the drive shaft 64. This effectively suppresses radial swaying during the rotation of the drive shaft 64, ensuring a stable transmission connection between the drive shaft 64 and the turntable 61. It also prevents deviations in the angle adjustment of the guide vane 62 due to swaying, thereby ensuring the accuracy of airflow regulation.

[0050] In one embodiment, the speed regulating assembly 60 further includes a connecting shaft 65 and a connecting bar 66. The first partition 70 has a protrusion 70a on the side surface opposite to the turntable 61. The connecting shaft 65 is arranged in the vertical direction X, and one end of the connecting shaft 65 passes through the first partition 70 and is connected to one end of the connecting bar 66. The other end passes through the turntable 61 and is connected to the guide vane 62. The other end of the connecting bar 66 is connected to the protrusion 70a.

[0051] In practical applications, when the turntable 61 is driven to rotate, it drives the connecting shaft 65 to rotate the guide vane 62. At this time, under the impact of the airflow, the guide vane 62 is prone to radial sway due to high-speed rotation. In this embodiment, by providing a protrusion 70a on the surface of the first partition 70 and connecting the protrusion 70a to the connecting shaft 65 using a connecting strip 66, a stable tensile or supporting force can be formed on the connecting shaft 65 to limit the radial position of the guide vane 62, prevent the guide vane 62 from deforming or losing angle control under the reaction force of the airflow, ensure the accuracy of angle adjustment, and thus ensure the stability of airflow adjustment.

[0052] In one embodiment, the centrifugal atomizer further includes at least one rotating bearing 90, which is disposed within the atomizing chamber 10b and sleeved on the rotating shaft 20. The rotating bearing 90 has multiple perforations 90a for material to pass through. Thus, the rotating bearing 90 provides radial and axial support to the rotating shaft 20, reducing radial wobble and vibration of the shaft 20 during high-speed rotation, ensuring that the atomizing disk 50 rotates at a stable speed and concentricity, and guaranteeing the uniformity of the atomization effect. The perforations 90a allow material to pass directly through the bearing, enabling the material dispersed by the distribution disk 40 to fall smoothly onto the atomizing disk 50, eliminating the obstruction of material flow by the rotating shaft 20.

[0053] In one embodiment, the centrifugal atomizer further includes two guide plates 100 located below the rotating bearing 90. The two guide plates 100 are inclinedly disposed within the atomization chamber 10b and are fixedly connected to the inner wall of the housing 10. An opening 100a for material outflow is formed between the adjacent ends of the two guide plates 100, which guides the material flow toward the atomizing disc 50. That is, after the material is dispersed by the distribution disc 40 and passes through the perforation 90a of the rotating bearing 90, it needs to be accurately conveyed to the atomizing disc 50 for atomization. In this embodiment, the guide plates 100 are located below the rotating bearing 90, which precisely catch the falling material. Because the guide plates 100 are inclined, gravity can be used to guide the material to converge toward the opening 100a, preventing the material from directly falling to the bottom of the atomization chamber 10b or adhering to the inner wall of the housing 10, thus reducing material residue and waste. Meanwhile, the tilt angle can control the falling speed of the material (such as moderate tilting to reduce the impact of falling), preventing the material from deviating from the effective working area of ​​the atomizing disc 50 due to falling too fast, and ensuring that the material enters the atomization process efficiently.

[0054] In practical applications, during the process of material being fed from the feed inlet 13 to the distribution plate 40, it may adhere to the edge of the distribution plate 40 or the inner wall of the housing 10 due to factors such as static electricity and surface tension, resulting in the waste of some material. Therefore, in one embodiment, the housing 10 is further provided with a second air inlet 15, which connects to the atomizing chamber 10b and is located above the distribution plate 40. This second air inlet 15 is used to introduce airflow into the atomizing chamber 10b to disperse the material. Thus, the airflow introduced by the second air inlet 15 forms an air curtain, which disperses the material as it is fed from the feed inlet 13, allowing it to re-enter the dispersion area of ​​the distribution plate 40, preventing adhesion. This improves material utilization and avoids long-term accumulation of residual material in the chamber, reducing the risk of cross-contamination.

[0055] In one embodiment, the centrifugal atomizer further includes an air guide shroud 110, which is sleeved around the outer periphery of the housing 10. The upper end of the air guide shroud 110 is sealed to the outer surface of the housing 10, and the lower end of the air guide shroud 110 is spaced apart from the outer surface of the housing 10 to form a waste air chamber 120 with an outlet between the air guide shroud 110 and the outer surface of the housing 10. The air outlet 14 is connected to the waste air chamber 120 and is used to introduce the airflow discharged from the turbine chamber 10a into the waste air chamber 120.

[0056] For example, during the process of driving the rotating blades 30, the airflow in the turbine chamber 10a may generate heat through friction, compression, etc. The air guide shroud 110 covering the outside of the housing 10 forms a waste air chamber 120 between it and the outer surface of the housing 10. The air outlet 14 is connected to the waste air chamber 120 so that the airflow that completes the power transmission enters the waste air chamber 120 from the air outlet 14. When it flows in the waste air chamber 120, it will exchange heat with the outer surface of the housing 10, so that the heat of the housing 10 (especially the area of ​​the housing 10 corresponding to the turbine chamber 10a) is carried away by the waste air, thereby achieving passive heat dissipation. This can reduce the internal temperature of the housing 10, and at the same time protect the housing 10 and internal components from long-term high-temperature aging, thus extending the service life of the equipment.

[0057] In addition, after the exhaust air discharged from the turbine chamber 10a is completely introduced into the exhaust air chamber 120, it can only be discharged directionally from the lower outlet, avoiding airflow interference caused by disordered diffusion of exhaust air, ensuring that the material collection at the outlet 12 of the atomizing chamber 10b is not affected by external airflow, and reducing disturbance to the working environment around the equipment.

[0058] The air guide shroud 110 includes an integrally connected vertical section 111 and a bent section 112. The upper end of the vertical section 111 is sealed to the outer surface of the housing 10, and the lower end of the vertical section 111 is connected to one end of the bent section 112. The other end of the bent section 112 extends away from the housing 10 to form an angle α between the vertical section 111 and the bent section 112, which is used to guide the airflow in the exhaust air chamber to flow to the outside of the housing 10.

[0059] In one embodiment, the centrifugal atomizer further includes a speed sensor and a controller. The top of the rotating shaft 20 extends through the housing 10 and is connected to the speed sensor. The speed sensor and the drive unit 63 are both electrically connected to the controller. Thus, by connecting the speed sensor to the top of the rotating shaft 20 extending outside the housing 10, the actual rotational speed of the rotating shaft 20 can be acquired in real time, and the speed signal (such as an electrical signal) is transmitted to the controller. The controller then controls the drive unit 63 to dynamically adjust the rotational speed of the rotating shaft 20, thereby ensuring that the atomizing disc 50 always operates at a stable speed. It should be noted that the controller can specifically be a Siemens SIMATIC S7-1200 PLC, and the speed sensor can specifically be an Omron E6B2-CWZ6C rotary encoder.

[0060] In summary, the centrifugal atomizer of this application cleverly introduces external airflow from the first air inlet 11 to impact the rotating blades 30 inside the turbine chamber 10a, thereby driving the entire rotating shaft 20 to rotate synchronously. This causes the distribution disc 40 to rotate along with the shaft, so that the concentrated material can be pre-dispersed evenly by centrifugal force. The material then falls onto the atomizing disc 50 below, where the centrifugal force generated by the high-speed rotation of the atomizing disc 50 further shears and breaks the material into tiny droplets. The atomized droplets are then ejected from the outlet of the atomizing disc 50. Since the outlet of the atomizing disc 50 is directly opposite the discharge port 12, the atomized material is discharged from the atomizing chamber 10b through the discharge port 12, thus achieving the purpose of atomization drying.

[0061] In addition, multiple guide vanes 62 are arranged around the rotating blade 30 to form a guide space. The guide vanes 62 are driven to rotate synchronously by driving the turntable 61 to rotate, thereby adjusting the air volume entering the guide space. This can directly change the driving force on the rotating blade 30 and achieve stepless adjustment of the rotation speed. This speed regulation method is flexible and has no complex mechanical meshing, further reducing operating noise. At the same time, it can be adjusted in real time according to material characteristics or process requirements, which greatly improves the adaptability of the equipment to diverse working conditions.

[0062] It is understood that the above embodiments only illustrate preferred embodiments of the present utility model, and their descriptions are relatively specific and detailed, but they should not be construed as limiting the scope of the present utility model patent. It should be noted that for those skilled in the art, the above technical features can be freely combined, and several modifications and improvements can be made without departing from the concept of the present utility model, all of which fall within the protection scope of the present utility model. Therefore, all equivalent transformations and modifications made within the scope of the claims of the present utility model should fall within the coverage of the claims of the present utility model.

Claims

1. A centrifugal atomizer, characterized in that, include: The housing has an internally separate turbine chamber and atomizing chamber. The housing has a feed inlet, a discharge outlet, a first air inlet, and an air outlet. The feed inlet and the discharge outlet are connected to the atomizing chamber, and the first air inlet and the air outlet are connected to the turbine chamber. A rotating shaft is vertically disposed inside the housing and passes through the turbine chamber and the atomizing chamber. A rotating blade located in the turbine chamber and a distributing disc located in the atomizing chamber are sleeved on the rotating shaft. The distributing disc is located below the feed inlet. An atomizing disc is disposed in the atomizing chamber and located below the dispensing disc. The atomizing disc is connected to the bottom of the rotating shaft, and the outlet of the atomizing disc is directly opposite the discharge port. A speed regulating assembly includes a turntable and a plurality of guide vanes distributed circumferentially around the outer periphery of the turntable. The turntable is rotatably disposed in the turbine chamber. The guide vanes are arranged toward the rotating shaft, and all the guide vanes cooperate to form a guide space. The rotating blades are located within the guide space. The connection between the guide vane and the turntable, and the line connecting the two, are taken as the reference axis. The side of the guide vane facing the turntable is the non-working surface, and at least a portion of the non-working surface of the guide vane is inclined to the reference axis.

2. The centrifugal atomizer according to claim 1, characterized in that, The speed regulation assembly also includes a drive shaft and a drive component. The drive shaft is disposed vertically inside the housing, and one end of the drive shaft passes through the turbine chamber and is connected to the turntable for transmission. The drive component is located outside the housing, and the output shaft of the drive component extends from outside the housing to inside the housing and is connected to the end of the drive shaft away from the turntable.

3. The centrifugal atomizer according to claim 2, characterized in that, The centrifugal atomizer further includes a first partition and a second partition spaced apart inside the housing. The first partition is located above the second partition, and the turbine chamber is formed between the first partition and the second partition. The atomizing chamber is formed between the second partition and the bottom of the housing. One end of the drive shaft extends into the turbine chamber, passes through the first partition, and is connected to the turntable.

4. The centrifugal atomizer according to claim 3, characterized in that, The speed adjustment assembly further includes a connecting shaft and a connecting strip. The first partition has a protrusion on the side surface opposite to the turntable. The connecting shaft is arranged in a vertical direction, and one end of the connecting shaft passes through the first partition and is connected to one end of the connecting strip. The other end passes through the turntable and is connected to the guide vane. The other end of the connecting strip is connected to the protrusion.

5. The centrifugal atomizer according to claim 1, characterized in that, The centrifugal atomizer also includes at least one rotating bearing, which is disposed in the atomizing chamber and sleeved on the rotating shaft, and the rotating bearing is provided with a plurality of perforations for material to pass through.

6. The centrifugal atomizer according to claim 5, characterized in that, The centrifugal atomizer also includes two guide plates located below the rotating bearing. The two guide plates are inclinedly disposed in the atomization chamber and are fixedly connected to the inner wall of the housing. An opening for material to flow out is formed between the close ends of the two guide plates. The opening is used to guide the material to flow towards the atomizing disc.

7. The centrifugal atomizer according to claim 1, characterized in that, The housing is also provided with a second air inlet, which is connected to the atomizing chamber and located above the material distribution plate, for introducing airflow into the atomizing chamber to disperse the material.

8. The centrifugal atomizer according to claim 1 or 7, characterized in that, The centrifugal atomizer also includes an air guide shroud, which is fitted around the outer periphery of the housing. The upper end of the air guide shroud is sealed to the outer surface of the housing, and the lower end of the air guide shroud is spaced apart from the outer surface of the housing to form a waste air chamber with an outlet between the air guide shroud and the outer surface of the housing. The air outlet is connected to the waste air chamber and is used to introduce the airflow discharged from the turbine chamber into the waste air chamber.

9. The centrifugal atomizer according to claim 8, characterized in that, The air guide shroud includes an integrally connected vertical section and a bent section. The upper end of the vertical section is sealed to the outer surface of the housing, the lower end of the vertical section is connected to one end of the bent section, and the other end of the bent section extends away from the housing to form an angle between the vertical section and the bent section, which is used to guide the airflow in the exhaust air cavity to flow to the outside of the housing.

10. The centrifugal atomizer according to claim 2, characterized in that, The centrifugal atomizer also includes a speed sensor and a controller. The top of the rotating shaft extends through the housing and is connected to the speed sensor. The speed sensor and the drive unit are both electrically connected to the controller.

Images