Drying device for powder production and processing

Abstract

The utility model discloses a drying device for powder production and processing, which belongs to the technical field of drying and comprises a drying tank, a dispersing box is fixed at the bottom of the drying tank, the bottom of the dispersing box is communicated with an air guide pipe capable of conveying hot air, and a plurality of groups of through holes are formed in the periphery of the bottom of the drying tank. A through hole is formed in the dispersing box, a square pipe is arranged in an inner cavity of the through hole in a sliding mode, the bottom of the square pipe extends to the inner cavity of the dispersing box, and the top of the square pipe penetrates through the inner cavity of the drying tank and is fixedly provided with a cap. The stirring assembly is matched, hot air makes full contact with the powder, the drying efficiency of the powder in the drying tank is improved, meanwhile, square pipes can stretch out and draw back under supporting of supporting springs, connection and disconnection of the square pipes at different positions are adjusted through extrusion plates, air pressures at different positions in the powder are different, and hot air diffusion is facilitated.

Description

Technical Field

[0001] The utility model relates to the technical field of drying, in particular to a drying device for powder production and processing. Background Art

[0002] Drying is the process of using heat to vaporize the moisture (water or other solvents) in wet materials, and using airflow or vacuum to remove the vaporized moisture, thereby obtaining dry materials. Such as the drying of materials in wet granulation, spray drying of solutions, and drying of fluid extracts.

[0003] In the prior art, the Chinese utility model with publication number: CN208679043U discloses a mixing device for the production and processing of veterinary oral powder, including a mixing chamber, the bottom end of the mixing chamber is fixedly provided with a support leg, and a feeding mechanism is provided at a position on one side of the bottom end of the mixing chamber close to the support leg, a control switch is installed on the front surface of the mixing chamber, and a display screen is provided at a position above the front surface of the mixing chamber close to the control switch, and a wall panel is connected to one side of the mixing chamber. The utility model is provided with a lifting mechanism, which is convenient for the user to put the veterinary oral powder into the mixing chamber, and can realize the closing of the cover plate, which is convenient for mixing and stirring the oral powder. A temperature and humidity sensor, a display screen and a blowing chamber are provided, so that the user can fully understand the mixing environment in the mixing chamber, which is convenient for drying the oral powder in the mixing chamber and avoiding the phenomenon of agglomeration of the oral powder. A feeding mechanism is provided, which can realize the rapid feeding process of the oral powder in the mixing chamber.

[0004] In the above technical solution, the first stirring tooth is driven by the stirring shaft to flip the powder, and then the fan in the blowing chamber is used to transport hot air to heat the flipped powder surface. This method can only heat and dry the powder on the surface of the mixing chamber, and continuous stirring is required to dry all the powder, which is too inefficient. Utility Model Content

[0005] The purpose of the utility model is to provide a drying device for powder production and processing, which transports hot air upward from the bottom of a drying tank through a dispersion box, multiple groups of through holes and a square tube, so that the hot air penetrates the powder from the bottom upward in the drying tank, heats and dries the powder from the inside, improves the drying efficiency, and solves the problems raised in the above-mentioned background technology.

[0006] To achieve the above-mentioned purpose, the utility model provides the following technical solutions: a drying device for powder production and processing, comprising a drying tank, a dispersion box is fixed at the bottom of the drying tank, an air duct for conveying hot air is connected to the bottom of the dispersion box, a plurality of through holes are provided around the bottom of the drying tank, a square tube is slidably provided in the inner cavity of the through hole, the bottom of the square tube extends to the inner cavity of the dispersion box, the top of the square tube passes through the inner cavity of the drying tank and is fixed with a cap, an exhaust hole is provided on the outside of the square tube, a support plate is fixed to the bottom of the outer side of the square tube, and a support spring is fixed to the bottom of the support plate, the bottom of the support spring is fixed to the inner cavity of the dispersion box, and a stirring assembly is provided in the inner cavity of the drying tank;

[0007] It also includes a feed port opened on the side wall of the drying tank, and the bottom of the drying tank is connected to a discharge pipe;

[0008] A plate-shaped filter fixed to the inner cavity of the drying tank.

[0009] Preferably, the stirring assembly includes a stirring shaft that rotates in the inner cavity of the drying tank through a bearing, a spiral blade is fixed to the outside of the stirring shaft, a driving motor is fixed to the top of the drying tank, and the output shaft of the driving motor is fixedly connected to one end of the stirring shaft.

[0010] Preferably, an extrusion plate is fixed to the outer side of the stirring shaft, and the extrusion plate is attached to the bottom of the inner cavity of the drying tank.

[0011] Preferably, the drying tank comprises a tank outer shell and a heated inner tank, the heated inner tank is located inside the tank outer shell, and a cavity is formed between the heated inner tank and the tank outer shell, a one-way valve is connected on the side wall of the inner cavity of the heated inner tank, and the one-way valve connects the heated inner tank with the cavity.

[0012] Preferably, a fixed scraper frame is fixed to the outer side of the stirring shaft, the side wall of the fixed scraper frame is in contact with the inner wall of the heated inner tank, and the fixed scraper frame is fixed to the top of the extrusion plate.

[0013] Preferably, a limiting groove is provided in the inner cavity of the heated inner tank, and a limiting column extending to the inner cavity of the limiting groove is fixed to one end of the extrusion plate away from the stirring shaft.

[0014] Preferably, the cap is configured in a truncated cone shape, and the side cross-section of the extrusion plate is trapezoidal.

[0015] Compared with the prior art, the beneficial effects of the utility model are:

[0016] 1. The utility model connects the dispersion box with the drying tank through a square tube. Under the change of air pressure, hot air flows out of the square tube and diffuses inside the powder. With the help of the stirring component, the hot air is fully in contact with the powder, thereby improving the drying efficiency of the powder inside the drying tank. At the same time, the square tube can be telescopically moved under the support of the supporting spring, and the extrusion plate is used to adjust the opening and closing of the square tube at different positions, so that the air pressure at different positions inside the powder is different, which is convenient for the diffusion of hot air.

[0017] 2. The utility model facilitates heating of the powder from the side and improves the drying efficiency of the powder by setting the internal structure of the drying tank. BRIEF DESCRIPTION OF THE DRAWINGS

[0018] Figure 1 It is a three-dimensional structural schematic diagram of the utility model;

[0019] Figure 2 It is a schematic diagram of the cross-sectional three-dimensional structure of the drying tank of the utility model;

[0020] Figure 3 It is a three-dimensional structural schematic diagram of the square tube of the utility model;

[0021] Figure 4 It is a three-dimensional structural schematic diagram of the stirring assembly of the utility model.

[0022] Numbers in the figure: 1. Drying tank; 101. Tank shell; 102. Heated inner tank; 103. Cavity; 104. One-way valve; 2. Dispersion box; 3. Air guide pipe; 4. Through hole; 5. Square tube; 6. Exhaust hole; 7. Support spring; 8. Stirring assembly; 81. Stirring shaft; 82. Spiral blade; 83. Driving motor; 9. Plate filter; 10. Extrusion plate; 11. Fixed scraper frame; 12. Limiting groove; 13. Limiting column. DETAILED DESCRIPTION

[0023] The following will be combined with the drawings in the embodiments of the utility model to clearly and completely describe the technical solutions in the embodiments of the utility model. Obviously, the described embodiments are only part of the embodiments of the utility model, not all of the embodiments. Based on the embodiments in the utility model, all other embodiments obtained by ordinary technicians in this field without creative work are within the scope of protection of the utility model.

[0024] The utility model provides Figures 1 to 4A drying device for powder production and processing shown in the figure comprises a drying tank 1, a dispersion box 2 is fixed at the bottom of the drying tank 1, an air duct 3 for conveying hot air is connected to the bottom of the dispersion box 2, a plurality of through holes 4 are provided around the bottom of the drying tank 1, a square tube 5 is slidably provided in the inner cavity of the through hole 4, the bottom of the square tube 5 extends to the inner cavity of the dispersion box 2, the top of the square tube 5 penetrates into the inner cavity of the drying tank 1 and is fixed with a cap, an exhaust hole 6 is provided on the outside of the square tube 5, a support plate is fixed to the bottom of the outer side of the square tube 5, and a support spring 7 is fixed to the bottom of the support plate, the bottom of the support spring 7 is fixed to the inner cavity of the dispersion box 2, and a stirring assembly 8 is provided in the inner cavity of the drying tank 1;

[0025] It also includes a feed port opened on the side wall of the drying tank 1, and the bottom of the drying tank 1 is connected to a discharge pipe;

[0026] A plate-shaped filter screen 9 fixed to the inner cavity of the drying tank 1;

[0027] The dispersion box 2 is connected to the drying tank 1 through the square tube 5. Under the change of air pressure, hot air flows out from the square tube 5 and diffuses inside the powder. With the help of the stirring component 8, the hot air is fully in contact with the powder, thereby improving the drying efficiency of the powder inside the drying tank 1. At the same time, the square tube 5 can be telescopically moved under the support of the support spring 7. The extrusion plate 10 is used to adjust the opening and closing of the square tube 5 at different positions, so that the air pressure at different positions inside the powder is different, which is convenient for the diffusion of hot air.

[0028] The stirring assembly 8 includes a stirring shaft 81 which rotates in the inner cavity of the drying tank 1 through a bearing, a spiral blade 82 is fixed to the outer side of the stirring shaft 81, a driving motor 83 is fixed to the top of the drying tank 1, and the output shaft of the driving motor 83 is fixedly connected to one end of the stirring shaft 81. The stirring shaft 81 is driven to rotate by the driving motor 83, and then the stirring shaft 81 drives the spiral blade 82 to rotate, so as to flip the powder, so as to keep the powder in a loose state and facilitate the diffusion of hot air inside.

[0029] An extrusion plate 10 is fixed to the outside of the stirring shaft 81, and the extrusion plate 10 is attached to the bottom of the inner cavity of the drying tank 1. Through the arrangement of the extrusion plate 10, it is convenient to squeeze the cap and the square tube 5, so that the square tube 5 shrinks into the through hole 4, and the exhaust hole 6 is blocked, so that the air pressure inside the powder at different places inside the drying tank 1 is different.

[0030] The drying tank 1 includes a tank shell 101 and a heated inner tank 102. The heated inner tank 102 is located inside the tank shell 101, and a cavity 103 is formed between the heated inner tank 102 and the tank shell 101. A one-way valve 104 is connected on the side wall of the inner cavity of the heated inner tank 102. The one-way valve 104 connects the heated inner tank 102 with the cavity 103. By limiting the structure of the drying tank 1, it is convenient to use hot air to heat the heated inner tank 102 and heat the powder attached to the heated inner tank 102.

[0031] A fixed scraper frame 11 is fixed to the outside of the stirring shaft 81, and the side wall of the fixed scraper frame 11 is in contact with the inner wall of the heated inner tank 102. The fixed scraper frame 11 is fixed to the top of the extrusion plate 10. Through the setting of the fixed scraper frame 11, the powder on the inner wall of the drying tank 1 is scraped by the rotating stirring shaft 81 to prevent the powder from contacting the inner wall of the drying tank 1 for too long, and other powders cannot contact the inner wall of the drying tank 1.

[0032] A limiting groove 12 is provided in the inner cavity of the heated inner tank 102, and a limiting column 13 extending to the inner cavity of the limiting groove 12 is fixed to the end of the extrusion plate 10 away from the stirring shaft 81. The limiting column 13 slides in the limiting groove 12 to facilitate the limiting of the extrusion plate 10, thereby preventing the extrusion plate 10 from being supported by the support spring 7 and deforming upward when contacting the cap.

[0033] The cap is truncated cone-shaped, and the side cross section of the extrusion plate 10 is trapezoidal. By setting the shapes of the cap and the extrusion plate 10, it is ensured that the extrusion plate 10 can more easily extrude the square tube 5 when rotating, so that the square tube 5 retracts into the through hole 4.

[0034] During specific use, the powder to be dried is added into the drying tank 1 from the feed port, and then the drive motor 83 is started. The drive motor 83 drives the stirring shaft 81 and the spiral blade 82 to flip the powder. At the same time, the air guide pipe 3 is connected to the external air supply device to introduce hot air into the dispersion box 2. The hot air is dispersed through the dispersion box 2, and then enters the drying tank 1 from the square tube 5, and is discharged from the exhaust hole 6 to diffuse inside the powder. At the same time, the hot air inside the dispersion box 2 enters the cavity 103 from the through hole 4 to heat the heated inner tank 102. The powder attached to the heated inner tank 102 can be heated during the powder stirring process. The powder is heated from the inside to accelerate the drying speed.

[0035] Although embodiments of the present invention have been shown and described, it will be appreciated by those skilled in the art that various changes, modifications, substitutions and variations may be made to the embodiments without departing from the principles and spirit of the present invention, and that the scope of the present invention is defined by the appended claims and their equivalents.

Claims

1. A drying device for powder production and processing, comprising a drying tank (1), characterized in that: A dispersion box (2) is fixed at the bottom of the drying tank (1), and the bottom of the dispersion box (2) is connected to an air guide pipe (3) for conveying hot air. A plurality of through holes (4) are provided around the bottom of the drying tank (1), and a square tube (5) is slidably provided in the inner cavity of the through hole (4). The bottom of the square tube (5) extends to the inner cavity of the dispersion box (2), and the top of the square tube (5) penetrates the inner cavity of the drying tank (1) and is fixed with a cap. An exhaust hole (6) is provided on the outside of the square tube (5). A support plate is fixed at the bottom of the outer side of the square tube (5), and a support spring (7) is fixed at the bottom of the support plate. The bottom of the support spring (7) is fixed to the inner cavity of the dispersion box (2), and a stirring assembly (8) is provided in the inner cavity of the drying tank (1); It also includes a feed inlet opened on the side wall of the drying tank (1), and the bottom of the drying tank (1) is connected to a discharge pipe; A plate-shaped filter screen (9) is fixed to the inner cavity of the drying tank (1).

2. A drying device for powder production and processing according to claim 1, characterized in that: The stirring assembly (8) comprises a stirring shaft (81) which rotates in the inner cavity of the drying tank (1) through a bearing, a spiral blade (82) is fixed on the outer side of the stirring shaft (81), a driving motor (83) is fixed on the top of the drying tank (1), and an output shaft of the driving motor (83) is fixedly connected to one end of the stirring shaft (81).

3. A drying device for powder production and processing according to claim 2, characterized in that: A pressing plate (10) is fixed to the outside of the stirring shaft (81), and the pressing plate (10) is attached to the bottom of the inner cavity of the drying tank (1).

4. A drying device for powder production and processing according to claim 3, characterized in that: The drying tank (1) comprises a tank outer shell (101) and a heated inner tank (102); the heated inner tank (102) is located inside the tank outer shell (101), and a cavity (103) is formed between the heated inner tank (102) and the tank outer shell (101); a one-way valve (104) is connected on the side wall of the inner cavity of the heated inner tank (102); the one-way valve (104) connects the heated inner tank (102) with the cavity (103).

5. A drying device for powder production and processing according to claim 2, characterized in that: A fixed scraper frame (11) is fixed to the outer side of the stirring shaft (81), the side wall of the fixed scraper frame (11) is in contact with the inner wall of the heated inner tank (102), and the fixed scraper frame (11) is fixed to the top of the extrusion plate (10).

6. A drying device for powder production and processing according to claim 4, characterized in that: The inner cavity of the heated inner tank (102) is provided with a limiting groove (12), and one end of the extrusion plate (10) away from the stirring shaft (81) is fixed with a limiting column (13) extending into the inner cavity of the limiting groove (12).

7. A drying device for powder production and processing according to claim 3, characterized in that: The cap is arranged in a truncated cone shape, and the side cross section of the extrusion plate (10) is a trapezoid.

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