Multistage drying device for dipotassium phosphate

Abstract

The utility model relates to the technical field of chemical product drying equipment, and discloses a dipotassium phosphate multistage drying device. According to the dipotassium phosphate multi-stage drying device, by arranging a three-stage progressive drying structure and a targeted treatment assembly, the drying efficiency is remarkably improved, a scattering motor in the first-stage drying bin drives scattering blades to rotate at a high speed, moist and caked dipotassium phosphate materials are quickly crushed, direct heat conduction of heating pieces on the inner wall is matched, and the drying efficiency is greatly improved. The materials are preliminarily dried and dispersed in a short time; the second-stage drying bin drives spiral blades to push materials through a spiral motor, meanwhile, a hot air generator conveys high-temperature hot air into the bin through a hot air pipe and a communicating pipe, and secondary drying of the materials in the moving process is achieved. A turning motor in the third-stage drying bin drives a turning plate to continuously turn over the materials, efficient radiation heating of an infrared heating plate is combined, it is ensured that the materials are evenly heated in all directions, the three-stage drying structures are linked with one another, the drying time is greatly shortened, and the large-scale production requirement is met.

Description

Technical Field

[0001] This utility model relates to the technical field of chemical product drying equipment, specifically a multi-stage drying device for dipotassium hydrogen phosphate. Background Technology

[0002] Dipotassium hydrogen phosphate is an important chemical raw material with wide applications in food, medicine, agriculture and other fields. Drying is a key step in the production of dipotassium hydrogen phosphate, and its drying effect directly affects the quality and performance of the product.

[0003] Currently, most existing dipotassium hydrogen phosphate drying equipment adopts a single drying method, such as hot air drying or vacuum drying. These devices have the following problems: First, the drying efficiency is low, and the material stays in the drying equipment for a long time, which cannot meet the needs of large-scale production. Second, the drying is uneven, which easily leads to some materials being over-dried while others are under-dried, affecting the stability of product quality. Third, the energy consumption is high, and the energy utilization efficiency is low, which increases production costs. Fourth, for moist and easily agglomerated dipotassium hydrogen phosphate, existing drying equipment is unable to effectively break up agglomerated materials, resulting in insufficient contact between the internal materials and hot air, further reducing the drying effect.

[0004] Therefore, we provide a multi-stage drying device for dipotassium hydrogen phosphate that can improve drying efficiency and ensure drying uniformity. Utility Model Content

[0005] (a) Technical problems to be solved

[0006] The purpose of this invention is to provide a multi-stage drying device for dipotassium hydrogen phosphate, in order to solve the problem mentioned in the background art that the existing dipotassium hydrogen phosphate drying equipment has a relatively simple drying method.

[0007] (II) Technical Solution

[0008] To achieve the above objectives, this utility model provides the following technical solution: a multi-stage drying device for dipotassium hydrogen phosphate, comprising a primary drying chamber, a secondary drying chamber disposed on one side of the primary drying chamber, a tertiary drying chamber disposed below the secondary drying chamber, and a feed inlet fixedly disposed on the upper surface of the primary drying chamber;

[0009] A dispersing motor is fixedly installed in the middle of the upper surface of the primary drying chamber. The transmission end of the dispersing motor passes through the primary drying chamber and is fixedly connected to a dispersing shaft. Dispersing blades are provided on the outer surface of the dispersing shaft. Heating plates are provided on the inner wall of the primary drying chamber. A feeding fan is provided below the primary drying chamber.

[0010] Furthermore, a No. 1 feeding pipe is fixedly connected between the feeding blower and the primary drying chamber, and a No. 2 feeding pipe is fixedly connected to one side of the feeding blower. The end of the No. 2 feeding pipe away from the feeding blower is connected to the secondary drying chamber, and a screw motor is fixedly installed on one side of the secondary drying chamber.

[0011] Furthermore, the drive end of the spiral motor is fixedly connected to a spiral shaft through the secondary drying chamber, and spiral blades are provided on the outer surface of the spiral shaft. A hot air generator is installed on the side of the secondary drying chamber away from the spiral motor.

[0012] Furthermore, a hot air pipe is fixedly connected to one side of the hot air generator, and several connecting pipes are provided at the bottom end of the hot air pipe. The ends of the several connecting pipes away from the hot air pipe are connected to the secondary drying chamber.

[0013] Furthermore, a conveying pipe is provided at the bottom of the secondary drying chamber, the tertiary drying chamber is located at the bottom of the conveying pipe, and a turning motor is fixedly installed on one side of the tertiary drying chamber.

[0014] Furthermore, the drive end of the tumbling motor is fixedly connected to a tumbling rod through the three-stage drying chamber, and a tumbling plate is provided on the outer surface of the tumbling rod. A mounting bracket is fixedly provided in the middle of the upper surface of the three-stage drying chamber.

[0015] Furthermore, an infrared heating plate is installed inside the mounting frame, a dehumidifying fan is installed on the side of the upper surface of the three-stage drying chamber away from the conveying pipe, and a discharge plate is installed on the outer surface of the three-stage drying chamber.

[0016] Compared with the prior art, the beneficial effects of this utility model are:

[0017] 1. This multi-stage drying device for dipotassium hydrogen phosphate significantly improves drying efficiency through a three-stage progressive drying structure and targeted processing components. In the first-stage drying chamber, a dispersing motor drives the dispersing blades to rotate at high speed, quickly breaking up the damp and lumpy dipotassium hydrogen phosphate material. Combined with direct heat conduction from the inner wall heating plates, the material is initially dried and dispersed in a short time. In the second-stage drying chamber, a spiral motor drives spiral blades to push the material, while a hot air generator delivers high-temperature hot air into the chamber through hot air pipes and connecting pipes, achieving secondary drying of the material during movement. In the third-stage drying chamber, a turning motor drives a turning plate to continuously turn the material. Combined with the efficient radiant heating of the infrared heating plate, this ensures that the material is heated evenly from all directions. The three-stage drying structure is interconnected, which greatly shortens the drying time compared to the traditional single-stage drying method, meeting the needs of large-scale production.

[0018] 2. This multi-stage dipotassium hydrogen phosphate drying device effectively reduces energy consumption by optimizing heat energy utilization and airflow circulation systems. The heating elements in the first-stage drying chamber provide directional heating to reduce heat loss; the hot air circulation system in the second-stage drying chamber can control the hot air flow rate by adjusting the hot air pipe valves to avoid energy waste; the dehumidifying fan at the top of the third-stage drying chamber promptly discharges hot and humid air to maintain a dry environment inside the chamber and reduce energy consumption from repeated heating. At the same time, the feeding fan and screw conveyor structure achieve closed-loop material conveying to prevent heat loss during transmission. The efficient utilization and rational circulation of heat energy in the multi-stage drying process reduces energy consumption in the drying operation.

[0019] 3. This multi-stage drying device for dipotassium hydrogen phosphate ensures stable drying quality through multiple dispersion and uniform heating designs. The surfaces of the dispersing blades, spiral blades, and turning plates are all treated with an anti-stick coating to prevent material adhesion and clumping, ensuring that the material can fully contact the heat source during each stage of drying. The infrared heating plate forms a uniform heat radiation field in the three-stage drying chamber, which, combined with the dynamic stirring of the turning plates, eliminates drying dead zones. The discharge plate at the bottom of the three-stage drying chamber has an arc-shaped design to prevent the material from accumulating and becoming damp after drying. By precisely controlling the drying parameters and material movement state at each stage, the moisture content of the finished dipotassium hydrogen phosphate can be stably controlled within 0.5%, effectively improving product quality and consistency. Attached Figure Description

[0020] Figure 1 This is a three-dimensional structural diagram of the present invention;

[0021] Figure 2 This is a three-dimensional structural diagram of the primary drying chamber of this utility model;

[0022] Figure 3 This is a three-dimensional structural diagram of the secondary drying chamber of this utility model;

[0023] Figure 4 This is a schematic diagram of the three-dimensional structure of the three-stage drying chamber of this utility model.

[0024] In the diagram: 1. Primary drying chamber; 2. Secondary drying chamber; 3. Tertiary drying chamber; 4. Feed inlet; 5. Dispersing motor; 6. Dispersing shaft; 7. Dispersing blades; 8. Heating element; 9. Feeding fan; 10. Feeding pipe No. 1; 11. Feeding pipe No. 2; 12. Screw motor; 13. Screw shaft; 14. Screw blades; 15. Hot air generator; 16. Hot air duct; 17. Connecting pipe; 18. Conveying pipe; 19. Tilting motor; 20. Tilting rod; 21. Tilting plate; 22. Mounting frame; 23. Infrared heating plate; 24. Dehumidifying fan; 25. Unloading plate. Detailed Implementation

[0025] The technical solutions of the present utility model will be clearly and completely described below with reference to the accompanying drawings of the embodiments. Obviously, the described embodiments are only some embodiments of the present utility model, and not all embodiments. Based on the embodiments of the present utility model, all other embodiments obtained by those of ordinary skill in the art without creative effort are within the protection scope of the present utility model.

[0026] Please see Figure 1 - Figure 4 This utility model provides a technical solution: a multi-stage drying device for dipotassium hydrogen phosphate, including a primary drying chamber 1, a secondary drying chamber 2 arranged on one side of the primary drying chamber 1, a tertiary drying chamber 3 arranged below the secondary drying chamber 2, and a feed inlet 4 fixedly arranged on the upper surface of the primary drying chamber 1.

[0027] A dispersing motor 5 is fixedly installed in the middle of the upper surface of the primary drying chamber 1. The transmission end of the dispersing motor 5 passes through the primary drying chamber 1 and is fixedly connected to a dispersing shaft 6. Dispersing blades 7 are provided on the outer surface of the dispersing shaft 6. Heating plates 8 are provided on the inner wall of the primary drying chamber 1. A feeding fan 9 is provided below the primary drying chamber 1. A first feeding pipe 10 is fixedly connected between the feeding fan 9 and the primary drying chamber 1. A second feeding pipe 11 is fixedly connected to one side of the feeding fan 9. The end of the second feeding pipe 11 away from the feeding fan 9 is connected to the secondary drying chamber 2.

[0028] When using this device for drying dipotassium hydrogen phosphate, the operator puts the dipotassium hydrogen phosphate material to be dried into the primary drying chamber 1 through the feed inlet 4, starts the dispersing motor 5, and its transmission end drives the dispersing shaft 6 to rotate, causing the dispersing blades 7 on the outer surface of the dispersing shaft 6 to rotate at high speed. These dispersing blades 7 will disperse the damp and potentially clump-forming dipotassium hydrogen phosphate material, allowing the material to disperse and increasing the contact area between the material and the hot air. At the same time, the heating plates 8 on the inner wall of the primary drying chamber 1 start working, generating heat to preliminarily heat and dry the material, reducing the moisture content of the material. After the material has been preliminarily dried and dispersed in the primary drying chamber 1, it falls into the feeding fan 9 through the first feeding pipe 10. The feeding fan 9 starts, generating air force to transport the material through the second feeding pipe 11 to the secondary drying chamber 2.

[0029] A spiral motor 12 is fixedly installed on one side of the secondary drying chamber 2. The drive end of the spiral motor 12 passes through the secondary drying chamber 2 and is fixedly connected to a spiral shaft 13. Spiral blades 14 are provided on the outer surface of the spiral shaft 13. A hot air generator 15 is installed on the side of the secondary drying chamber 2 away from the spiral motor 12. A hot air pipe 16 is fixedly connected to one side of the hot air generator 15. Several connecting pipes 17 are provided at the bottom end of the hot air pipe 16. The ends of the connecting pipes 17 away from the hot air pipe 16 are connected to the secondary drying chamber 2. The bottom end of the secondary drying chamber 2 is provided with a conveyor belt. The conveying pipe 18 is used to connect the three-stage drying chamber 3 to the bottom of the conveying pipe 18. A turning motor 19 is fixedly installed on one side of the three-stage drying chamber 3. The transmission end of the turning motor 19 passes through the three-stage drying chamber 3 and is fixedly connected to a turning rod 20. A turning plate 21 is provided on the outer surface of the turning rod 20. A mounting frame 22 is fixedly installed in the middle of the upper surface of the three-stage drying chamber 3. An infrared heating plate 23 is provided inside the mounting frame 22. A dehumidifying fan 24 is installed on the side of the upper surface of the three-stage drying chamber 3 away from the conveying pipe 18. A discharge plate 25 is provided on the outer surface of the three-stage drying chamber 3.

[0030] After the material enters the secondary drying chamber 2, the screw motor 12 starts, and its transmission end drives the screw shaft 13 to rotate. The screw blades 14 on the outer surface of the screw shaft 13 push the material forward in the secondary drying chamber 2. At the same time, the hot air generator 15 starts working and generates hot air. The hot air enters the secondary drying chamber 2 through the hot air pipe 16 and several connecting pipes 17. As the material is pushed forward by the screw blades 14, the hot air continuously dries the material, further removing moisture. After being dried in the secondary drying chamber 2, the material falls into the tertiary drying chamber through the conveyor pipe 18 at the bottom of the secondary drying chamber 2. After the material enters the three-stage drying chamber 3, the turning motor 19 starts, and its transmission end drives the turning rod 20 to rotate. The turning plate 21 on the outer surface of the turning rod 20 will continuously turn the material. The infrared heating plate 23 inside the mounting frame 22 is turned on, and the material is deeply heated and dried by infrared radiation. During the drying process, the dehumidifying fan 24 will extract the humid air in the three-stage drying chamber 3 to maintain a dry environment in the chamber and improve the drying effect. When the material is dried in the three-stage drying chamber 3, the discharge plate 25 is opened, and the dried dipotassium hydrogen phosphate material is discharged from the three-stage drying chamber 3, completing the entire drying process.

[0031] Working Principle: When using this device for drying dipotassium hydrogen phosphate, the operator puts the dipotassium hydrogen phosphate material to be dried into the primary drying chamber 1 through the feed inlet 4. The dispersing motor 5 is started, and its drive end drives the dispersing shaft 6 to rotate, causing the dispersing blades 7 on the outer surface of the shaft 6 to rotate at high speed. These blades 7 disperse the damp and potentially clump-forming dipotassium hydrogen phosphate material, increasing the contact area between the material and the hot air. Simultaneously, the heating elements 8 on the inner wall of the primary drying chamber 1 start working, generating heat to initially heat and dry the material, reducing its moisture content. After initial drying and dispersal in the primary drying chamber 1, the material falls into the feeding fan 9 through the first feeding pipe 10. The feeding fan 9 starts, generating airflow to transport the material through the second feeding pipe 11 to the secondary drying chamber 2. After entering the secondary drying chamber 2, the screw motor 12 starts, and its drive end drives the screw shaft 13 to rotate. The screw blades 14 on the outer surface of the screw shaft 13 push the material through the secondary drying chamber. The material moves forward within the secondary drying chamber 2. Simultaneously, the hot air generator 15 starts working, generating hot air. The hot air enters the secondary drying chamber 2 through the hot air pipe 16 and several connecting pipes 17. As the material is pushed forward by the spiral blades 14, the hot air continuously dries the material, further removing moisture. After drying in the secondary drying chamber 2, the material falls into the tertiary drying chamber 3 through the conveying pipe 18 at the bottom of the secondary drying chamber 2. After the material enters the tertiary drying chamber 3, the turning motor 19 starts, and its transmission end drives the turning rod 20 to rotate. The turning plate 21 on the outer surface of the turning rod 20 continuously turns the material. The infrared heating plate 23 inside the mounting frame 22 is turned on, using infrared radiation to deeply heat and dry the material. During the drying process, the dehumidifying fan 24 extracts the humid air from the tertiary drying chamber 3, maintaining a dry environment inside the chamber and improving the drying effect. When the material is dried in the tertiary drying chamber 3, the discharge plate 25 is opened, and the dried dipotassium hydrogen phosphate material is discharged from the tertiary drying chamber 3, completing the entire drying process.

[0032] Finally, it should be noted that the above content is only used to illustrate the technical solution of this utility model, and is not intended to limit the scope of protection of this utility model. Simple modifications or equivalent substitutions made by those skilled in the art to the technical solution of this utility model do not depart from the essence and scope of the technical solution of this utility model.

Claims

1. A multi-stage drying device for dipotassium hydrogen phosphate, comprising a primary drying chamber (1), characterized in that: A secondary drying chamber (2) is provided on one side of the primary drying chamber (1), a tertiary drying chamber (3) is provided below the secondary drying chamber (2), and a feed inlet (4) is fixedly provided on the upper surface of the primary drying chamber (1). A dispersing motor (5) is fixedly installed in the middle of the upper surface of the primary drying chamber (1). The transmission end of the dispersing motor (5) passes through the primary drying chamber (1) and is fixedly connected to a dispersing shaft (6). Dispersing blades (7) are provided on the outer surface of the dispersing shaft (6). Heating plates (8) are provided on the inner wall of the primary drying chamber (1). A feeding fan (9) is provided below the primary drying chamber (1).

2. The multi-stage drying apparatus for dipotassium hydrogen phosphate according to claim 1, characterized in that: A first feeding pipe (10) is fixedly connected between the feeding blower (9) and the primary drying chamber (1). A second feeding pipe (11) is fixedly connected to one side of the feeding blower (9). The end of the second feeding pipe (11) away from the feeding blower (9) is connected to the secondary drying chamber (2). A spiral motor (12) is fixedly installed on one side of the secondary drying chamber (2).

3. The multi-stage drying apparatus for dipotassium hydrogen phosphate according to claim 2, characterized in that: The drive end of the spiral motor (12) is fixedly connected to the spiral shaft (13) through the secondary drying chamber (2). The outer surface of the spiral shaft (13) is provided with spiral blades (14). A hot air generator (15) is installed on the side of the secondary drying chamber (2) away from the spiral motor (12).

4. The multi-stage drying apparatus for dipotassium hydrogen phosphate according to claim 3, characterized in that: A hot air pipe (16) is fixedly connected to one side of the hot air generator (15). Several connecting pipes (17) are provided at the bottom end of the hot air pipe (16). The ends of the several connecting pipes (17) away from the hot air pipe (16) are connected to the secondary drying chamber (2).

5. The multi-stage drying apparatus for dipotassium hydrogen phosphate according to claim 4, characterized in that: The bottom end of the secondary drying chamber (2) is provided with a conveying pipe (18), the tertiary drying chamber (3) is located at the bottom end of the conveying pipe (18), and a turning motor (19) is fixedly installed on one side of the tertiary drying chamber (3).

6. The multi-stage drying apparatus for dipotassium hydrogen phosphate according to claim 5, characterized in that: The transmission end of the flipping motor (19) passes through the three-stage drying chamber (3) and is fixedly connected to a flipping rod (20). A flipping plate (21) is provided on the outer surface of the flipping rod (20), and a mounting bracket (22) is fixedly provided in the middle of the upper surface of the three-stage drying chamber (3).

7. The multi-stage drying apparatus for dipotassium hydrogen phosphate according to claim 6, characterized in that: An infrared heating plate (23) is provided inside the mounting frame (22), a dehumidifying fan (24) is installed on the side of the upper surface of the three-stage drying chamber (3) away from the conveying pipe (18), and a discharge plate (25) is provided on the outer surface of the three-stage drying chamber (3).

Images