Combined flash vaporization air inlet and dispersion device

Abstract

This utility model discloses a combined flash evaporation air intake and dispersing device, including an air intake shell, an air distribution perforated plate, a drive motor, fixed rake teeth, and rotating rake teeth. The air distribution perforated plate is installed at the bottom of the flash evaporation shell, and the fixed rake teeth are installed on the air distribution perforated plate. The rotating shaft of the drive motor extends into the air intake shell and passes through the air distribution perforated plate, and the rotating rake teeth are installed at the end of the rotating shaft and rotate together with the rotating shaft. The simple dispersing structure formed by the fixed rake teeth and the rotating rake teeth, compared with the traditional multi-layer blade holder, reduces the height design requirements of the air intake shell while meeting the dispersing requirements, simplifies the processing technology, and reduces processing costs. At the same time, due to the simplified structure and lighter weight, the power required for the drive motor to drive the rotating shaft and other components to rotate is reduced, reducing the energy consumption of the equipment and lowering the operating cost.

Description

Technical Field

[0001] This utility model relates to the field of drying equipment technology, and in particular to a combined flash evaporation air inlet and dispersion device. Background Technology

[0002] Flash dryers are widely used in the field of material drying due to their extremely short drying time (usually only a few seconds). Their working principle involves using a high-speed blade dispersing device to rapidly disperse the wet material entering the flash dryer, allowing it to quickly exchange heat with the hot air at the bottom of the flash dryer, thus achieving rapid moisture removal.

[0003] However, the dispersing devices used in conventional airflow drying have many drawbacks: they adopt a multi-layer blade structure, with each layer typically having only two single-blade blades. The limited number of blades makes it difficult to disperse harder materials in time, easily causing blockages inside the flash evaporator and requiring shutdown for maintenance, which seriously affects production efficiency. The blade holder has many layers and is tall, and is designed to be bulky to ensure strength. This not only requires a large amount of power to rotate the blade holder, but also makes it prone to instability at high speeds, leading to seal failure at the connection between the drive shaft and the flash evaporator, resulting in material leakage and increasing material loss and equipment maintenance difficulty. Utility Model Content

[0004] The technical problem to be solved by this utility model is to overcome the defects of the existing technology and provide a combined flash drying air inlet and dispersing device, which optimizes the dispersing device and air inlet system to improve the stability, efficiency and economy of flash drying.

[0005] The technical solution adopted by this utility model to solve its technical problem is: a combined flash evaporation air intake and dispersing device, including an air intake device and a dispersing device. The air intake device includes an air intake shell and an air distribution plate. The dispersing device includes a drive motor, fixed rake teeth and rotating rake teeth.

[0006] The air distribution plate is installed at the bottom of the flash evaporation shell, and the fixed rake teeth are installed on the air distribution plate.

[0007] The rotating shaft of the drive motor extends into the air inlet housing and passes through the air distribution plate. The rotating rake teeth are installed at the end of the rotating shaft and rotate together with the rotating shaft.

[0008] The fixed rake teeth and the rotating rake teeth are arranged with their teeth facing each other vertically and at intervals, which is used to quickly break up clumps and hard materials into granules.

[0009] The hot airflow enters the flash evaporation shell through the air inlet of the air inlet shell, and is forced to form a high-speed airflow vertically upward through the air distribution plate. The material enters the flash evaporation shell through the feeding device. During the falling process, it is quickly dispersed by the rotating rake teeth and fixed rake teeth on the high-speed rotating shaft, and then dispersed and heat exchanged by the high-speed airflow vertically upward.

[0010] Furthermore, a flat plate that rotates together with the rotating shaft is installed at the end of the rotating shaft, and the rotating rake teeth are fixed on the flat plate.

[0011] Furthermore, the vertical distance between the flat plate and the air distribution plate is less than the sum of the lengths of the fixed rake teeth and the rotating rake teeth.

[0012] Furthermore, the distance between the fixed rake teeth and the rotating rake teeth is less than the width of the rake teeth.

[0013] Furthermore, the air inlet housing is located below and connected to the flash evaporation housing, the air inlet and the air outlet are respectively located on the air inlet housing and the flash evaporation housing, and the feeding device is located below the air outlet.

[0014] The beneficial effects of this utility model's combined flash evaporation air inlet and dispersion device are:

[0015] 1. Improve heat exchange efficiency: By optimizing the dispersing device, the material is quickly dispersed into small particles, increasing the contact area with hot air. Combined with the stable high-speed airflow after uniform air distribution, the heat exchange rate of flash drying is significantly improved, the material drying time is shortened, and the production efficiency is increased.

[0016] 2. Reduce equipment failure rate: The single-layer simple rake tooth dispersing structure is adopted to replace the traditional multi-layer high knife holder, which reduces the risk of knife holder instability, maintains the sealing stability of the connection between the drive shaft and flash evaporation, and reduces material leakage; at the same time, it reduces the frequency of downtime maintenance due to material blockage and improves the continuous operation capability of the equipment.

[0017] 3. Cost savings: The simplified, modular structure reduces the processing difficulty and height requirements of components such as the air intake casing, thereby reducing manufacturing costs; it also reduces the power requirements of the drive motor, thereby reducing energy consumption during equipment operation and saving significant operating costs over the long term.

[0018] 4. Structural advantages: The overall structure of the device is simple, the connection and cooperation of each component are clear, the manufacturing process is not complicated, it is easy to manufacture and maintain, and it is conducive to its promotion and application in the field of flash drying equipment. Attached Figure Description

[0019] The present invention will be further described below with reference to the accompanying drawings and embodiments.

[0020] Figure 1 This is a schematic diagram of the structure of this utility model;

[0021] In the diagram: 1. Air inlet shell, 2. Drive motor, 3. Rotating shaft, 4. Air distribution plate, 5. Fixed rake teeth, 6. Rotating rake teeth, 7. Feeding device, 8. Flash evaporation shell. Detailed Implementation

[0022] The present invention will now be described in further detail with reference to the accompanying drawings. These drawings are simplified schematic diagrams, illustrating only the basic structure of the present invention, and therefore only show the components relevant to the present invention.

[0023] like Figure 1 The combined flash evaporation air intake and dispersion device shown includes an air intake shell 1, an air distribution plate 4, a drive motor 2, fixed rake teeth 5, and rotating rake teeth 6; the air intake shell 1 is located below and connected to the flash evaporation shell 8, the air inlet and air outlet are respectively located on the air intake shell 1 and the flash evaporation shell 8, and the feeding device 7 is located below the air outlet.

[0024] The air distribution plate 4 is installed at the bottom of the flash evaporation shell 8, and the fixed rake teeth 5 are installed on the air distribution plate 4; the rotating shaft 3 of the drive motor 2 extends into the air inlet shell 1 and passes through the air distribution plate 4, and a flat plate that rotates together with the rotating shaft 3 is installed at the end of the rotating shaft 3, and the rotating rake teeth 6 are fixed on the flat plate.

[0025] The fixed rake teeth 5 and the rotating rake teeth 6 are arranged vertically opposite each other and at intervals. The distance between the fixed rake teeth 5 and the rotating rake teeth 6 is less than the width of the rake teeth. The vertical distance between the flat plate and the air distribution plate 4 is less than the sum of the lengths of the fixed rake teeth 5 and the rotating rake teeth 6. The simple dispersing structure formed by the fixed rake teeth 5 and the rotating rake teeth 6 is used to quickly disperse clumps and hard materials into granules.

[0026] After the hot airflow enters the flash evaporation shell 8 through the air inlet of the air inlet shell 1, it is forced to form a high-speed airflow that is vertically upward through the air distribution plate 4. The material enters the flash evaporation shell 8 through the feeding device 7. During the falling process, it is quickly dispersed by the rotating rake teeth 6 and fixed rake teeth 5 on the high-speed rotating shaft 3, and then dispersed and heat exchanged by the high-speed airflow that is vertically upward.

[0027] The combined flash evaporation air intake and dispersion device of this utility model consists of an air intake shell 1, a drive motor 2, a rotating shaft 3, an air distribution perforated plate 4, fixed rake teeth 5, rotating rake teeth 6, a feeding device 7, and a flash evaporation shell 8. The coordinated working process of each component is as follows:

[0028] 1. Air intake and air distribution: The hot airflow enters the flash evaporator from the air intake shell 1 and comes into contact with the air distribution perforated plate 4. Due to the structural design of the air distribution perforated plate 4, the hot airflow is forced to be distributed, forming a high-speed airflow that is vertically upward, providing a stable hot air environment for subsequent material drying.

[0029] 2. Feeding and Dispersion: The material is conveyed into the flash evaporation shell 8 through the feeding device 7. After the material falls, the drive motor 2 drives the rotating shaft 3 to rotate at high speed. The rotating rake teeth 6 on the rotating shaft 3 rotate accordingly and cooperate with the fixed rake teeth 5. Due to the small distance between the fixed rake teeth 5 and the rotating rake teeth 6, they form a shearing and crushing effect on the falling material, quickly breaking up clumps and harder materials into small particles.

[0030] 3. Heat exchange drying: The broken-up small particles are then dispersed by the high-speed airflow rising vertically, allowing the material to come into full contact with the high-speed hot air and rapidly exchange heat to achieve efficient removal of moisture and complete the drying process.

[0031] Among them, the simple disintegration structure composed of fixed rake teeth 5 and rotating rake teeth 6, compared with the traditional multi-layer blade holder, reduces the height design requirements of the air inlet shell 1 while meeting the disintegration requirements, simplifies the processing technology, and reduces processing costs. At the same time, due to the simplified structure and lighter weight, the power required for the drive motor 2 to drive the rotating shaft 3 and other components to rotate is reduced, thereby reducing the energy consumption of the equipment and lowering the operating costs.

[0032] Based on the above-described preferred embodiments of this utility model, and through the foregoing description, those skilled in the art can make various changes and modifications without departing from the technical concept of this utility model. The technical scope of this utility model is not limited to the contents of the specification, but must be determined according to the scope of the claims.

Claims

1. A combined flash vaporization air inlet and dispersion device, characterized by: It includes an air intake device and a dispersing device. The air intake device includes an air intake housing (1) and an air distribution plate (4). The dispersing device includes a drive motor (2), fixed rake teeth (5) and rotating rake teeth (6). The uniform air distribution plate (4) is installed at the bottom of the flash evaporation shell (8), and the fixed rake teeth (5) are installed on the uniform air distribution plate (4); The rotating shaft (3) of the drive motor (2) extends into the air inlet housing (1) and passes through the air distribution plate (4). The rotating rake teeth (6) are installed at the end of the rotating shaft (3) and rotate together with the rotating shaft (3). The fixed rake teeth (5) and the rotating rake teeth (6) are arranged with their teeth facing each other and spaced apart, and are used to quickly break up clumps and hard materials into granules. After the hot airflow enters the flash evaporation shell (8) through the air inlet of the air inlet shell (1), it is forced to form a vertically upward high-speed airflow through the air distribution plate (4); the material enters the flash evaporation shell (8) through the feeding device (7), and during the falling process, it is quickly dispersed by the rotating rake teeth (6) and fixed rake teeth (5) on the high-speed rotating shaft (3), and then dispersed and heat exchanged by the vertically upward high-speed airflow.

2. The combined flash tank inlet and distribution device of claim 1 wherein: The end of the rotating shaft (3) is fitted with a flat plate that rotates together with the rotating shaft (3), and the rotating rake teeth (6) are fixed on the flat plate.

3. The combined flash evaporator inlet and dispersion device of claim 2, wherein: The vertical distance between the flat plate and the air distribution plate (4) is less than the sum of the lengths of the fixed rake teeth (5) and the rotating rake teeth (6).

4. The combined flash tank inlet and distribution device of claim 1 wherein: The distance between the fixed rake teeth (5) and the rotating rake teeth (6) is less than the width of the rake teeth.

5. The combined flash evaporation air inlet and dispersing device according to claim 1, characterized in that: The air inlet housing (1) is located below and connected to the flash evaporation housing (8). The air inlet and air outlet are respectively located on the air inlet housing (1) and the flash evaporation housing (8). The feeding device (7) is located below the air outlet.

Images