Pressure spraying air distribution mechanism

Abstract

The utility model belongs to the technical field of spray drying, and particularly relates to a pressure spray air distribution mechanism which comprises a flow distribution box, a round hole is formed in the upper surface of the flow distribution box, an outer air guide cover is fixedly installed at the position of the round hole in the flow distribution box, and an inner air guide cover is arranged in an inner cavity of the outer air guide cover. The turbulent flow assembly and the dispersing assembly below are used for conducting disturbing mixing and three-stage dispersing disruption on the heated raw materials, the effective contact area between hot air and the atomized raw materials is increased, the uniformity of fog drops in the drying process is guaranteed, and the possibility that large and small particles are differentiated is reduced; due to the fact that the heated atomized raw materials are conveyed through the multiple air supply pipes, the mode that a traditional device conveys materials through a single feeding port is changed, the requirement for continuous high air pressure is lowered, and then energy consumption is reduced.

Description

Technical Field

[0001] This utility model belongs to the field of spray drying technology, and in particular relates to a pressure spray air distribution mechanism. Background Technology

[0002] Pressure spray drying technology is widely used in chemical, food, and pharmaceutical industries. Its core lies in achieving efficient heat exchange between atomized droplets and hot air through an air distribution mechanism.

[0003] The air distribution mechanism is a key component of a pressure spray system. Its function is to disperse the spray fluid to a designated area or the entire space, ensuring effective coverage and distribution of spray particles. Depending on the application scenario, the design and configuration of the air distribution mechanism will vary, primarily using airflow guidance, fan assistance, and other methods to control the spray range and effect.

[0004] Existing vertical spray dryers have been gradually phased out of the market due to their large footprint, long air ducts with numerous bends, easy material accumulation in the bends, uneven particle size, high scrap rate, and significant waste. Horizontal pressure spray dryers have subsequently evolved as a result. However, both vertical and horizontal dryers have drawbacks in their internal pressure spray distribution mechanisms. First, uneven hot air distribution, with air intake from the same side leading to uneven hot air flow within the tower, affects the uniformity of droplet drying and may result in particle size variations. Second, high energy consumption; traditional equipment often relies on unidirectional hot air intake, requiring high air pressure and increasing energy consumption. Therefore, we propose a pressure spray distribution mechanism. Utility Model Content

[0005] The purpose of this invention is to provide a pressure spray air distribution mechanism to solve the problems mentioned in the background art.

[0006] In view of this, the present invention provides a pressure spray air distribution mechanism, comprising:

[0007] The distribution box has a circular hole on its upper surface. An outer air guide hood is fixedly installed at the circular hole on the distribution box. An inner air guide hood is provided inside the outer air guide hood. A support plate is fixedly installed inside the distribution box. An air distribution pipe is fixed at the center of the support plate. Air outlets are provided on all four side walls of the distribution box, and air supply pipes are fixedly installed at the air outlets.

[0008] A turbulence-inducing component is disposed directly below the outer and inner air guide hoods and is used to accelerate and turbulent the hot air flowing down between the outer and inner air guide hoods.

[0009] A dispersion component is disposed in the inner cavity of the air distribution duct and is used to disperse hot air and atomized raw materials to improve the drying efficiency of atomized raw materials.

[0010] A feeding pipe is fixedly installed on an inner air guide shroud. The bottom end of the feeding pipe is located in the inner cavity of the inner air guide shroud, and an atomizing nozzle is fixedly installed at the bottom end of the feeding pipe.

[0011] In this technical solution, both the outer and inner air guide covers are frustum-shaped structures and are coaxially arranged. The upper part of the outer air guide cover is fixed with multiple fixing rods that are evenly spaced and centered, and the other end of the fixing rods is fixed to the inner wall of the outer air guide cover.

[0012] In this technical solution, the turbulence-disrupting component includes:

[0013] The inner ring has a circular ring structure and is fixedly installed on the lower surface of the inner air guide shroud. An outer ring is coaxially arranged on the outer side of the inner ring. The outer ring has a circular ring structure and is fixedly installed on the lower surface of the outer air guide shroud. Multiple evenly distributed air guide plates are fixedly installed between the inner ring and the outer ring. A drive component for driving the turbulence component to rotate is arranged on the outer side of the outer ring.

[0014] In this technical solution, the driving component includes:

[0015] A gear ring is fixedly installed at the lower part of the outer wall of the outer ring. A gear is meshed with the circumference of the gear ring. A motor is fixed to the upper surface of the support plate directly below the gear. The output shaft of the motor is coaxially connected to the gear.

[0016] In this technical solution, the distributed component includes:

[0017] Mesh plate one is fixedly installed in the upper part of the inner cavity of the air distribution duct. Mesh plate two and mesh plate three are arranged from top to bottom directly below mesh plate one and are fixed to the inner wall of the air distribution duct.

[0018] In this technical solution, the mesh count of the first, second, and third stencils increases sequentially.

[0019] In this technical solution, a connecting pipe is fixedly installed on the upper surface of the outer air guide shroud, and the upper end of the material conveying pipe penetrates the inner wall of the connecting pipe and extends to the outside.

[0020] The beneficial effects of this utility model are:

[0021] 1. This pressure spray air distribution mechanism, through the turbulence component and the dispersion component below, disturbs and mixes the heated raw material and disperses it in three stages, thereby increasing the effective contact area between the hot air and the atomized raw material, ensuring the uniformity of the droplets during the drying process, and reducing the possibility of differences in particle size.

[0022] 2. This pressure spray air distribution mechanism, by setting up multiple air supply pipes, transports the heated atomized raw material through multiple air supply pipes, changing the traditional single inlet feeding method, reducing the need for continuous high air pressure, and thus reducing energy consumption. Attached Figure Description

[0023] Figure 1 This is a schematic diagram of the overall structure of this utility model;

[0024] Figure 2 This is a schematic diagram of the internal structure of the flow divider box in this utility model;

[0025] Figure 3 This is an exploded view of the air distribution mechanism in this utility model;

[0026] Figure 4 This is a schematic diagram of the structure of the outer air guide shroud and the inner air guide shroud of this utility model;

[0027] Figure 5 This is a schematic diagram of the structure of the turbulence component in this utility model;

[0028] Figure 6 This is an exploded view of the dispersion component in this utility model.

[0029] The markings in the diagram are as follows:

[0030] 1. Diverter box; 2. Outer air guide hood; 3. Inner air guide hood; 4. Fixing rod; 5. Inner ring; 6. Outer ring; 7. Air guide plate; 8. Gear ring; 9. Support plate; 10. Air distribution pipe; 11. Mesh plate one; 12. Mesh plate two; 13. Mesh plate three; 14. Motor; 15. Gear; 16. Air outlet; 17. Air supply pipe; 18. Connecting pipe; 19. Material conveying pipe; 20. Atomizing nozzle. Detailed Implementation

[0031] The technical solutions of the embodiments of this application will be clearly described below with reference to the accompanying drawings. Obviously, the described embodiments are only some, not all, of the embodiments of this application. All other embodiments obtained by those skilled in the art based on the embodiments of this application are within the scope of protection of this application.

[0032] In the description of this application, it should be noted that the terminology used herein is for the purpose of describing particular embodiments only and is not intended to limit the exemplary embodiments according to this application. For ease of description, the dimensions of the various parts shown in the drawings are not drawn to actual scale. Techniques, methods, and devices known to those skilled in the art may not be discussed in detail, but where appropriate, such techniques, methods, and devices should be considered part of the specification. In all examples shown and discussed herein, any specific values ​​should be interpreted as merely exemplary and not as limitations. Therefore, other examples of exemplary embodiments may have different values. It should be noted that similar reference numerals and letters in the following drawings denote similar items, and therefore, once an item is defined in one drawing, it need not be further discussed in subsequent drawings.

[0033] It should be noted that the terms "first," "second," etc., used in the specification and claims of this application are used to distinguish similar objects and not to describe a specific order or sequence. It should be understood that such use of data can be interchanged where appropriate so that embodiments of this application can be implemented in orders other than those illustrated or described herein, and the objects distinguished by "first," "second," etc., are generally of the same class and are not limited in number; for example, a first object can be one or more. Furthermore, in the specification and claims, "and / or" indicates at least one of the connected objects, and the character " / " generally indicates that the preceding and following objects are in an "or" relationship.

[0034] It should be noted that in the description of this application, the directional terms such as "front, back, up, down, left, right", "horizontal, vertical, horizontal" and "top, bottom" indicate the orientation or positional relationship based on the orientation or positional relationship shown in the accompanying drawings. They are only for the convenience of describing this application and simplifying the description. Unless otherwise stated, these directional terms do not indicate or imply that the device or element referred to must have a specific orientation or be constructed and operated in a specific orientation, and therefore should not be construed as a limitation on the scope of protection of this application. The directional terms "inner" and "outer" refer to the inner and outer contours relative to the outline of each component itself.

[0035] It should be noted that, in this application, the terms "comprising," "including," or any other variations thereof are intended to cover non-exclusive inclusion, such that a process, method, article, or apparatus that comprises a list of elements includes not only those elements but also other elements not expressly listed, or elements inherent to such a process, method, article, or apparatus. Without further limitations, an element defined by the phrase "comprising one..." does not exclude the presence of other identical elements in the process, method, article, or apparatus that includes that element. Furthermore, it should be noted that the scope of the methods and apparatuses in the embodiments of this application is not limited to performing functions in the order shown or discussed, but may also include performing functions substantially simultaneously or in the reverse order, depending on the functions involved. For example, the described methods may be performed in a different order than described, and various steps may be added, omitted, or combined. Additionally, features described with reference to certain examples may be combined in other examples.

[0036] Example 1:

[0037] Please see Figure 1 - Figure 6 As shown, this embodiment provides a pressure spray air distribution mechanism, including:

[0038] The distribution box 1 has a circular hole on its upper surface. An outer air guide hood 2 is fixedly installed at the circular hole on the distribution box 1. An inner air guide hood 3 is provided in the inner cavity of the outer air guide hood 2. A support plate 9 is fixedly installed in the inner cavity of the distribution box 1. An air distribution pipe 10 is fixed at the center of the support plate 9. Air outlets 16 are opened on the four side walls of the distribution box 1, and air supply pipes 17 are fixedly installed at the air outlets 16.

[0039] The turbulence component is located directly below the outer air guide hood 2 and the inner air guide hood 3, and is used to accelerate and turbulent the hot air flowing down between the outer air guide hood 2 and the inner air guide hood 3.

[0040] The dispersion component is installed in the inner cavity of the air distribution duct 10 and is used to disperse the hot air and atomized raw materials to accelerate the drying efficiency of the atomized raw materials.

[0041] The material conveying pipe 19 is fixedly installed on the inner air guide shroud 3. The bottom end of the material conveying pipe 19 is located in the inner cavity of the inner air guide shroud 3, and an atomizing nozzle 20 is fixedly installed at the bottom end of the material conveying pipe 19.

[0042] In this embodiment, the turbulence component includes:

[0043] The inner ring 5 has a circular structure and is fixedly installed on the lower surface of the inner air guide shroud 3. The outer ring 6 is coaxially arranged on the outer side of the inner ring 5. The outer ring 6 has a circular structure and is fixedly installed on the lower surface of the outer air guide shroud 2. Multiple evenly distributed air guide plates 7 are fixedly installed between the inner ring 5 and the outer ring 6. A drive component for driving the turbulence component to rotate is arranged on the outer side of the outer ring 6.

[0044] In this embodiment, the driving component includes:

[0045] A gear ring 8 is fixedly installed at the lower part of the outer wall of the outer ring 6. A gear 15 is meshed with the circumference of the gear ring 8. A motor 14 is fixed to the upper surface of the support plate 9 directly below the gear 15. The output shaft of the motor 14 is coaxially connected to the gear 15.

[0046] In this embodiment, the dispersing component includes:

[0047] Mesh plate 11 is fixedly installed on the upper part of the inner cavity of the air distribution duct 10. Mesh plate 2 12 and mesh plate 3 13, which are fixed to the inner wall of the air distribution duct 10, are arranged sequentially from top to bottom directly below mesh plate 11.

[0048] The principle of this device is as follows:

[0049] During installation, the diversion box 1 in this device is fixedly installed on the top of the drying tower with bolts, and the lower parts of multiple air supply pipes 17 are connected to the side wall of the drying tower in sequence. It is worth noting that the drying tower is a common drying tower body in the prior art spray drying device. This is prior art. Before use, it is necessary to ensure that the side wall of the drying tower has receiving holes corresponding to multiple air supply pipes 17, so that the dried material can be fully dried again in the barrel. This application will not elaborate on this further.

[0050] The gas heated at the front end enters the device through the connecting pipe 18, while the raw material to be dried is atomized by the atomizing nozzle 20 at the bottom of the conveying pipe 19. During this process, the high-temperature airflow moves from top to bottom through the guide gap between the outer air guide hood 2 and the inner air guide hood 3, and then enters the turbulence assembly.

[0051] When the drive assembly is started, the output shaft of the motor 14 rotates and drives the gear 15 to rotate. The gear 15 then drives the gear ring 8 to rotate. Since the gear ring 8 is fixedly installed on the outer wall of the outer ring 6 in the turbulence assembly, the turbulence assembly can rotate synchronously with the gear ring 8. The multiple air guide plates 7 located between the inner ring 5 and the outer ring 6 can clear, accelerate, and disturb the downward hot airflow, and move it further downward along the upper surface of the air guide plate 7 until it enters the upper surface of the mesh plate 11 in the dispersion assembly and comes into contact with the atomized material.

[0052] During the above process, due to the rotation of multiple air guide plates 7, the airflow in the upper space of the mesh plate 11 is accelerated. Specifically, the atomized material will also move at high speed in this partition. As the hot airflow is continuously transported from top to bottom, the hot airflow can fully contact the atomized material in this process and quickly remove the moisture from the material, thereby achieving the effect of rapid drying.

[0053] Next, the mixed and dried atomized material enters the lower partition of the distribution box 1 through the mesh openings on mesh plates 11, 12, and 13, and then enters the drying tower through multiple air supply pipes 17. Since multiple air supply pipes 17 transport the heated atomized material, the traditional single inlet feeding method is changed, reducing the need for continuous high air pressure and thus reducing energy consumption. In addition, the heated material is disturbed and mixed and dispersed in three stages by the turbulence component and the dispersion component below, which increases the effective contact area between the hot air and the atomized material, ensuring the uniformity of the droplets during the drying process and reducing the possibility of differences in particle size.

[0054] Example 2:

[0055] This embodiment provides a pressure spray air distribution mechanism. In addition to the technical solutions of the above embodiments, it also has the following technical features: both the outer air guide hood 2 and the inner air guide hood 3 are frustum-shaped structures, and the outer air guide hood 2 and the inner air guide hood 3 are coaxially arranged. The upper part of the outer air guide hood 2 is fixed with a plurality of fixing rods 4 distributed at equal intervals in a circular pattern, and the other end of the fixing rods 4 is fixed to the inner wall of the outer air guide hood 2.

[0056] Among them, reference Figure 4 The hot air is guided by the air duct formed between the outer air guide hood 2 and the inner air guide hood 3, which changes the disadvantage of uneven hot air distribution when the traditional device always draws air from the same side.

[0057] Example 3:

[0058] This embodiment provides a pressure spray air distribution mechanism, which, in addition to the technical solutions of the above embodiments, also has the following technical features: the mesh count of mesh plate 11, mesh plate 2, and mesh plate 3 increases sequentially.

[0059] During the process of contacting hot air, the droplets are continuously refined and separated, which makes the drying of the droplets more uniform and thorough, and effectively reduces the possibility of the droplets producing particles of different sizes during the drying process.

[0060] Example 4:

[0061] This embodiment provides a pressure spray air distribution mechanism. In addition to the technical solutions of the above embodiments, it also has the following technical features: a connecting pipe 18 is fixedly installed on the upper surface of the outer air guide shroud 2, and the upper end of the material conveying pipe 19 penetrates the inner wall of the connecting pipe 18 and extends to the outside.

[0062] The connecting pipe 18 is connected to the front-end hot air system in the drying device, thereby ensuring that hot air can enter the device stably and effectively.

[0063] The embodiments of this application have been described above with reference to the accompanying drawings. Unless otherwise specified, the embodiments and features in the embodiments of this application can be combined with each other. This application is not limited to the specific embodiments described above. The specific embodiments described above are merely illustrative and not restrictive. Those skilled in the art can make many other forms under the guidance of this application without departing from the spirit and scope of the claims, and all of these forms are within the protection scope of this application.

Claims

1. A pressure spray air distribution mechanism, characterized in that, include: A distribution box (1) has a circular hole on its upper surface. An outer air guide hood (2) is fixedly installed at the circular hole on the distribution box (1). An inner air guide hood (3) is provided in the inner cavity of the outer air guide hood (2). A support plate (9) is fixedly installed in the inner cavity of the distribution box (1). A distribution pipe (10) is fixed at the center of the support plate (9). Air outlets (16) are provided on all four side walls of the distribution box (1), and an air supply pipe (17) is fixedly installed at the air outlet (16). A turbulence-inducing component is disposed directly below the outer air guide shroud (2) and the inner air guide shroud (3) and is used to accelerate and turbulent the hot air flowing down between the outer air guide shroud (2) and the inner air guide shroud (3); A dispersion component is disposed in the inner cavity of the air distribution pipe (10) and is used to disperse hot air and atomized raw materials to improve the drying efficiency of atomized raw materials. The material conveying pipe (19) is fixedly installed on the inner air guide hood (3). The bottom end of the material conveying pipe (19) is located in the inner cavity of the inner air guide hood (3), and an atomizing nozzle (20) is fixedly installed at the bottom end of the material conveying pipe (19).

2. The pressure spray air distribution mechanism according to claim 1, characterized in that, Both the outer air guide hood (2) and the inner air guide hood (3) are frustum-shaped structures, and the outer air guide hood (2) and the inner air guide hood (3) are coaxially arranged. The upper part of the outer air guide hood (2) is fixed with a plurality of fixed rods (4) distributed at equal intervals with the center of the circle, and the other end of the fixed rods (4) is fixed to the inner wall of the outer air guide hood (2).

3. The pressure spray air distribution mechanism according to claim 1, characterized in that, The turbulence-disrupting component includes: The inner ring (5) has a circular structure and is fixedly installed on the lower surface of the inner air guide shroud (3). An outer ring (6) is coaxially arranged on the outer side of the inner ring (5). The outer ring (6) has a circular structure and is fixedly installed on the lower surface of the outer air guide shroud (2). Multiple evenly distributed air guide plates (7) are fixedly installed between the inner ring (5) and the outer ring (6). A drive component for driving the turbulence component to rotate is arranged on the outer side of the outer ring (6).

4. A pressure spray air distribution mechanism according to claim 3, characterized in that, The driving component includes: A gear ring (8) is fixedly installed at the lower part of the outer wall of the outer ring (6). A gear (15) is meshed with the circumference of the gear ring (8). A motor (14) is fixed to the upper surface of the support plate (9) directly below the gear (15). The output shaft of the motor (14) is coaxially connected to the gear (15).

5. A pressure spray air distribution mechanism according to claim 1, characterized in that, The distributed component includes: Mesh plate one (11) is fixedly installed in the upper part of the inner cavity of the air distribution pipe (10). Mesh plate two (12) and mesh plate three (13) are arranged from top to bottom directly below the mesh plate one (11) and are fixed to the inner wall of the air distribution pipe (10).

6. A pressure spray air distribution mechanism according to claim 5, characterized in that, The mesh counts of the first (11), second (12), and third (13) mesh plates increase sequentially.

7. A pressure spray air distribution mechanism according to claim 1, characterized in that, A connecting pipe (18) is fixedly installed on the upper surface of the outer air guide cover (2), and the upper end of the material conveying pipe (19) penetrates the inner wall of the connecting pipe (18) and extends to the outside.

Images