Heat pump low-temperature evaporative crystallization drying device
By combining the motor-driven mixing block and the air guide pipe nozzle, the problems of uneven mixing and difficult cleaning of crystallized waste in traditional devices are solved, realizing efficient mixing and convenient cleaning of wastewater treatment devices, and improving the operational stability and safety of the equipment.
Patent Information
- Application Number
- CN202423035498.3
- Authority / Receiving Office
- CN · China
- Patent Type
- Utility models(China)
- Current Assignee / Owner
- Filing Date
- 2024-12-09
- Publication Date
- 2025-11-11
- Estimated Expiration
- 2034-12-09
AI Technical Summary
Traditional low-temperature evaporation devices for wastewater treatment employ simple stirring methods, resulting in uneven stirring effects, insufficient mixing and reaction of wastewater components, and difficulty in cleaning up crystallized waste after prolonged use, which affects the operating efficiency and lifespan of the equipment.
The motor-driven stirring block, combined with the air guide pipe and nozzle design, achieves uniform mixing and reaction of materials. The heating device is located on the outside of the outer barrel to evenly transfer heat. The inner barrel and the movable barrel are connected by threads and the positioning of the convex ring groove to enhance the connection strength, making it easy to disassemble and clean. An exhaust pipe is set to control the pressure. The inner barrel and the movable barrel are made of stainless steel to prevent deformation. The semi-circular stirring block reduces the mixing dead corners.
It achieves uniform mixing of materials and accelerates evaporation and crystallization, improves the practicality and flexibility of the equipment, ensures the stability and safety of the connection, simplifies the cleaning process, and prevents material leakage and burns to operators.
Smart Images
Figure CN223534887U_ABST
Abstract
Description
Technical Field
[0001] This utility model relates to the field of wastewater treatment and material drying technology, specifically a heat pump low-temperature evaporation crystallization drying device. Background Technology
[0002] The heat pump low-temperature evaporation crystallization drying device is a device that combines heat pump technology and the principle of low-temperature evaporation crystallization. It uses a heat pump system to absorb heat from a low-temperature heat source and transfer it to a high-temperature heat source to heat and evaporate the moisture in the material, thereby achieving the purpose of drying and crystallization. In a vacuum environment, the boiling point of the solution decreases, thus achieving evaporation at a lower temperature. As the solvent evaporates, the concentration of solute in the solution gradually increases. When the concentration reaches a supersaturated state, the solute begins to precipitate in the form of crystals.
[0003] Heat pump low-temperature evaporation crystallization drying equipment is mainly used to treat various industrial wastewaters, such as high-salt wastewater, heavy metal wastewater, and printing industry wastewater, to achieve wastewater reduction, harmlessness, and resource utilization. In the food processing process, it is used to dry and crystallize various food raw materials, such as dried fruits and vegetables and dried meat products, to improve the shelf life and taste of food. It is also used for the drying and crystallization of chemical products, such as salts, sugars, and pharmaceuticals, to improve the purity and yield of products.
[0004] However, traditional low-temperature evaporation devices for wastewater treatment may use relatively simple stirring methods, such as single-shaft stirring or static mixing. The stirring effect may not be uniform enough, resulting in the components in the wastewater not being fully mixed and reacted. Furthermore, after long-term use, a large amount of crystallized waste may accumulate, which may be difficult to clean, affecting the operating efficiency and lifespan of the equipment. Utility Model Content
[0005] Based on this, the purpose of this utility model is to provide a heat pump low-temperature evaporation crystallization drying device to solve the technical problems that traditional wastewater treatment low-temperature evaporation devices may use relatively simple stirring methods, such as single-shaft stirring or static mixing, which may not have a uniform stirring effect, resulting in the components in the wastewater not being fully mixed and reacted. Moreover, after long-term use, a large amount of crystallization waste may accumulate, which may be difficult to clean, affecting the operating efficiency and lifespan of the equipment.
[0006] To achieve the above objectives, this utility model provides the following technical solution: a heat pump low-temperature evaporation crystallization drying device, comprising an outer barrel, an inner barrel fixedly installed inside the outer barrel, a first movable barrel and a second movable barrel respectively connected to the bottom of the outer barrel and the inner barrel, a sealing cover fixedly connected to the top of the outer barrel, a motor fixedly connected to the top of the sealing cover, a transmission rod fixedly connected to the output end of the motor, a stirring block connected to the bottom of the transmission rod via a connecting block, multiple sets of air guide pipes fixedly connected inside the stirring block, nozzles provided at the top of the multiple sets of air guide pipes, a heating coil fixedly connected to the inner side of the outer barrel, a heating device for use with the heating coil provided on the outer side of the outer barrel, the heating coil having a spiral structure wound around the outer side of the inner barrel, a connecting pipe for use with the air guide pipes fixedly connected to the bottom of the first movable barrel and the second movable barrel, and an air inlet pipe for use with the connecting pipe rotatably connected to the bottom of the first movable barrel.
[0007] By adopting the above technical solution, during use, the motor-driven transmission rod drives the stirring block to stir, realizing the mixing and reaction of materials. The connecting pipe is connected to the bottom of the first and second movable barrels and works in conjunction with the air guide pipe to realize gas transmission. The air inlet pipe is rotatably connected to the bottom of the first movable barrel and is used to introduce gas into the inner barrel. The air guide pipe and nozzle can move synchronously with the stirring block and transmission rod, thereby introducing gas into the inner barrel and disturbing the materials inside. The design of the air guide pipe and nozzle allows the gas to be evenly introduced into the materials, promoting the drying process and improving the reaction rate of the materials. The heating device is located on the outside of the outer barrel and works in conjunction with... The heating coil provides the heat needed for evaporation of the material. Its spiral structure, wrapped around the outside of the inner drum, ensures even heat transfer to the material, accelerating evaporation and crystallization. A motor-driven stirring block, combined with gas introduced through the air inlet pipe and nozzles, ensures uniform mixing and reaction of the material. For cleaning the inner drum, the inlet pipe, air inlet pipe, and nozzles work together to guide cleaning fluid into the inner drum, aiding in the cleaning process. This solves the problem of waste material accumulating in the second movable drum after crystallization, thus improving the practicality and flexibility of the entire heat pump low-temperature evaporation crystallization drying device.
[0008] The present invention is further configured such that multiple sets of first fixing blocks are fixedly installed on the outer side of the outer barrel, and multiple sets of second fixing blocks are fixedly installed on the outer side of the first movable barrel, and fixing bolts are threadedly connected between the first fixing blocks and the second fixing blocks.
[0009] By adopting the above technical solution, the first fixing block and the second fixing block are tightly connected together by the threaded fixing bolts, making the connection between the outer barrel and the first movable barrel more secure and less prone to loosening or falling off due to external forces. When it is necessary to disassemble the equipment and clean the waste in the second movable barrel, simply unscrew the fixing bolts to easily separate the outer barrel and the first movable barrel.
[0010] The present invention is further configured such that a first protruding ring is fixedly connected to the bottom of the outer barrel, a second protruding ring is fixedly installed on the inner side of the top of the second movable barrel, and grooves that cooperate with the first protruding ring and the second protruding ring are respectively opened in the inner side of the first movable barrel and the outer barrel.
[0011] By adopting the above technical solution, the first and second convex rings increase the connection area between the outer barrel, the first movable barrel, and the second movable barrel, thereby enhancing the connection strength between them. The fit between the groove and the convex ring achieves precise axial and radial positioning, ensuring that the relative positions of each component are accurate after assembly. The tight fit between the convex ring and the groove can effectively prevent material from leaking out from the connection.
[0012] The present invention is further configured such that a fixing ring is fixedly installed on the outer side of the outer barrel, and multiple sets of supporting legs are provided at the bottom of the fixing ring, and the fixing ring is located at the bottom of the heating device.
[0013] By adopting the above technical solution, the cooperation between the fixed ring and the support leg allows the entire device to stand upright on the ground for use. When the fixed ring is located at the bottom of the heating device, it can provide support and fixation for the heating device.
[0014] The present invention is further configured such that an exhaust pipe is fixedly connected to one side of the outer barrel, the other end of the exhaust pipe passes through the inner barrel, and a feed pipe is fixedly connected to one side of the sealing cover.
[0015] By adopting the above technical solution, the exhaust pipe helps to discharge the gas generated inside the inner barrel, helps to maintain stable pressure inside the equipment, and prevents pressure rise and safety hazards caused by gas accumulation. By adjusting the opening size of the feed pipe, the feeding speed and flow rate of materials can be controlled, which helps to achieve precise material ratio and process control.
[0016] The present invention is further configured such that both the inner barrel and the second movable barrel are made of stainless steel, and the outer barrel is provided with heat insulation material on its outer side.
[0017] By adopting the above technical solution, when the inner barrel and the second movable barrel are made of stainless steel, the inner barrel and the second movable barrel are not easily deformed or damaged during stirring, heating and other processes. The heat insulation material can effectively reduce heat transfer and maintain the temperature inside the outer barrel. The heat insulation material can significantly reduce the temperature of the outer barrel surface and prevent operators from being burned during use.
[0018] The present invention is further configured such that the stirring block is composed of multiple sets of semi-arc elongated blocks, and the stirring block is in contact with the inner wall of the second movable barrel.
[0019] By adopting the above technical solution, the design of the semi-circular elongated block allows the stirring block to better contact the material and to more effectively push and mix the wastewater when rotating. This structure helps to reduce the dead corners of the stirring, ensuring that the wastewater can be mixed evenly during the stirring process. In addition, the stirring block that fits against the inner wall of the second movable tank can prevent the crystallized waste from accumulating near the tank wall.
[0020] In summary, the present invention has the following main advantages:
[0021] 1. This utility model uses a motor-driven transmission rod to drive the stirring block for stirring, achieving material mixing and reaction. A connecting pipe connects to the bottom of the first and second movable barrels and works in conjunction with a gas guide pipe to transfer gas. An air inlet pipe is rotatably connected to the bottom of the first movable barrel to introduce gas into the inner barrel. The gas guide pipe and nozzle move synchronously with the stirring block and transmission rod, thereby introducing gas into the inner barrel and agitating the material inside. The design of the gas guide pipe and nozzle ensures that gas is evenly introduced into the material, promoting the drying process and increasing the reaction rate. The heating device is located on the outside of the outer barrel and works in conjunction with a heating coil to... The device provides heat for evaporation of materials, and the heating coil has a spiral structure that wraps around the outside of the inner barrel to ensure that heat is evenly transferred to the materials, thereby accelerating the evaporation and crystallization of the materials. The stirring block is driven by a motor to stir the materials. Combined with the gas introduced by the air duct and nozzle, the materials can be evenly mixed and reacted. When cleaning the inner barrel, the cleaning liquid can also be guided into the inner barrel through the cooperation between the air inlet pipe, the air duct, and the nozzle, which assists in the stirring and cleaning of the inner barrel. This solves the problem of waste material accumulating in the second movable barrel after crystallization and is not easy to clean, thereby improving the practicality and flexibility of the entire heat pump low-temperature evaporation crystallization drying device.
[0022] 2. This utility model increases the connection area between the outer barrel, the first movable barrel, and the second movable barrel by setting the first and second convex rings, thereby enhancing the connection strength between them. The cooperation between the groove and the convex ring achieves precise axial and radial positioning, ensuring that the relative positions of each component are accurate after assembly. The tight cooperation between the convex ring and the groove can effectively prevent material from leaking out from the connection. Attached Figure Description
[0023] Figure 1 This is a first-view schematic diagram of the overall structure of this utility model;
[0024] Figure 2 This is a second-view schematic diagram of the overall structure of this utility model;
[0025] Figure 3 This is a first-view schematic diagram of the disassembled structure of this utility model;
[0026] Figure 4 This is a second-view schematic diagram of the disassembled structure of this utility model;
[0027] Figure 5 This is a cross-sectional structural diagram of the present invention;
[0028] Figure 6 This is a schematic diagram showing the main structure of this utility model.
[0029] In the diagram: 1. Outer barrel; 2. Sealing cap; 3. Motor; 4. First movable barrel; 5. Air inlet pipe; 6. Feed pipe; 7. Exhaust pipe; 8. Fixing ring; 9. First fixing block; 10. Support leg; 11. Fixing bolt; 12. Second fixing block; 13. Heating device; 14. Transmission rod; 15. First convex ring; 16. Stirring block; 17. Second movable barrel; 18. Inner barrel; 19. Heating coil; 20. Connecting block; 21. Second convex ring; 22. Connecting pipe; 23. Air guide pipe; 24. Nozzle. Detailed Implementation
[0030] The technical solutions of the present invention will be clearly and completely described below with reference to the accompanying drawings. The embodiments described below with reference to the accompanying drawings are exemplary and are only used to explain the present invention, and should not be construed as limiting the present invention.
[0031] The embodiments of this utility model will be described below based on its overall structure.
[0032] A heat pump low-temperature evaporation crystallization drying device, such as Figure 1-6As shown, the device includes an outer barrel 1, an inner barrel 18 fixedly installed inside the outer barrel 1, a first movable barrel 4 and a second movable barrel 17 respectively connected to the bottom of the outer barrel 1 and the inner barrel 18, a sealing cover 2 fixedly connected to the top of the outer barrel 1, a motor 3 fixedly connected to the top of the sealing cover 2, a transmission rod 14 fixedly connected to the output end of the motor 3, a stirring block 16 connected to the bottom of the transmission rod 14 via a connecting block 20, multiple sets of air guide pipes 23 fixedly connected inside the stirring block 16, nozzles 24 provided at the top of the multiple sets of air guide pipes 23, a heating coil 19 fixedly connected to the inner side of the outer barrel 1, a heating device 13 for use with the heating coil 19 provided on the outer side of the outer barrel 1, the heating coil 19 having a spiral structure wound around the outer side of the inner barrel 18, a connecting pipe 22 for use with the air guide pipe 23 fixedly connected to the bottom of the first movable barrel 4 and the second movable barrel 17, and an air inlet pipe 5 for use with the connecting pipe 22 rotatably connected to the bottom of the first movable barrel 4.
[0033] In use, the motor 3 drives the transmission rod 14 to drive the stirring block 16 to stir, realizing the mixing and reaction of materials. The connecting pipe 22 is connected to the bottom of the first movable barrel 4 and the second movable barrel 17, and works with the air guide pipe 23 to realize the gas transmission. The air inlet pipe 5 is rotatably connected to the bottom of the first movable barrel 4, and is used to introduce gas into the inner barrel 18. The air guide pipe 23 and the nozzle 24 can move synchronously with the stirring block 16 and the transmission rod 14, thereby introducing gas into the inner barrel 18 and disturbing the materials in the inner barrel 18. The design of the air guide pipe 23 and the nozzle 24 allows the gas to be introduced into the materials evenly, promoting the drying process of the materials and improving the reaction rate of the materials. The heating device 13 is located on the outside of the outer barrel 1, and works with the heating device 24 to generate gas. The heating coil 19 provides heat for the evaporation of the material. The heating coil 19 has a spiral structure and is wrapped around the outside of the inner barrel 18 to ensure that the heat is evenly transferred to the material, so as to accelerate the evaporation and crystallization of the material. The stirring block 16 is driven by the motor 3 to stir. Combined with the gas introduced by the air guide pipe 23 and the nozzle 24, the material can be evenly mixed and reacted. When cleaning the inner barrel 18, the cleaning liquid can also be guided into the inner barrel 18 through the cooperation between the air inlet pipe 5, the air guide pipe 23 and the nozzle 24, which assists the stirring result in cleaning the inner barrel 18. This solves the problem of the waste material after crystallization accumulating in the second movable barrel 17 and is not easy to clean, thereby improving the practicality and flexibility of the entire heat pump low-temperature evaporation crystallization drying device.
[0034] Furthermore, the first fixing block 9 and the second fixing block 12 are tightly connected together by the threaded fixing bolt 11, making the connection between the outer barrel 1 and the first movable barrel 4 more secure and less prone to loosening or falling off due to external forces. When it is necessary to disassemble the equipment and clean the waste in the second movable barrel 17, simply unscrew the fixing bolt 11 to easily separate the outer barrel 1 and the first movable barrel 4. The first convex ring 15 and the second convex ring 21 increase the connection area between the outer barrel 1, the first movable barrel 4 and the second movable barrel 17, thereby enhancing the connection strength between them. The cooperation between the groove and the convex ring achieves precise axial and radial positioning, ensuring that the relative positions of each component are accurate after assembly. The tight cooperation between the convex ring and the groove can effectively prevent material from leaking out from the connection. The cooperation between the fixing ring 8 and the support leg 10 allows the entire device to stand upright on the ground for use. When the fixing ring 8 is located at the bottom of the heating device 13, it can provide support and fixation for the heating device 13.
[0035] The exhaust pipe 7 in this embodiment helps to discharge the gas generated inside the inner barrel 18, which helps to maintain the pressure stability inside the equipment and prevent pressure rise and safety hazards caused by gas accumulation. By adjusting the opening size of the feed pipe 6, the feeding speed and flow rate of the material can be controlled, which helps to achieve precise material ratio and process control. When the inner barrel 18 and the second movable barrel 17 are made of stainless steel, the inner barrel 18 and the second movable barrel 17 are not easily deformed or damaged during stirring, heating and other processes. The heat insulation material can effectively reduce heat transfer and maintain the temperature stability inside the outer barrel 1. The heat insulation material can significantly reduce the surface temperature of the outer barrel 1 and prevent the operator from being burned during use. Finally, the semi-circular long block design allows the stirring block 16 to better contact the material and can more effectively push and mix the wastewater when rotating. This structure helps to reduce the stirring dead corners and ensure that the wastewater can be mixed evenly during the stirring process. The stirring block 16, which is attached to the inner wall of the second movable barrel 17, can prevent the crystallized waste from accumulating near the barrel wall.
[0036] Although embodiments of the present invention have been shown and described, these specific embodiments are merely explanations of the present invention and are not intended to limit the invention. The specific features, structures, materials, or characteristics described may be combined in any suitable manner in one or more embodiments or examples. After reading this specification, those skilled in the art may make modifications, substitutions, and variations to the embodiments as needed without departing from the principles and spirit of the present invention, provided that such modifications, substitutions, and variations are within the scope of the claims of the present invention and are protected by patent law.
Claims
1. A heat pump low-temperature evaporation crystallization drying device, comprising an outer barrel (1), characterized in that: An inner barrel (18) is fixedly installed inside the outer barrel (1). A first movable barrel (4) and a second movable barrel (17) are respectively connected to the bottom of the outer barrel (1) and the inner barrel (18). A sealing cover (2) is fixedly connected to the top of the outer barrel (1). A motor (3) is fixedly connected to the top of the sealing cover (2). A transmission rod (14) is fixedly connected to the output end of the motor (3). A stirring block (16) is connected to the bottom of the transmission rod (14) through a connecting block (20). Multiple sets of air guide pipes (23) are fixedly connected inside the stirring block (16). (23) A nozzle (24) is provided at the top. A heating coil (19) is fixedly connected to the inner side of the outer barrel (1). A heating device (13) for use with the heating coil (19) is provided on the outer side of the outer barrel (1). The heating coil (19) is a spiral structure wrapped around the outer side of the inner barrel (18). A connecting pipe (22) for use with the air guide pipe (23) is fixedly connected to the bottom of the first movable barrel (4) and the second movable barrel (17). An air inlet pipe (5) for use with the connecting pipe (22) is rotatably connected to the bottom of the first movable barrel (4).
2. The heat pump low-temperature evaporation crystallization drying apparatus according to claim 1, characterized in that: Multiple sets of first fixing blocks (9) are fixedly installed on the outside of the outer barrel (1), and multiple sets of second fixing blocks (12) are fixedly installed on the outside of the first movable barrel (4). The first fixing block (9) and the second fixing block (12) are threadedly connected by fixing bolts (11).
3. The heat pump low-temperature evaporation crystallization drying apparatus according to claim 1, characterized in that: The bottom of the outer barrel (1) is fixedly connected to a first protruding ring (15), and the inner side of the top of the second movable barrel (17) is fixedly installed with a second protruding ring (21). The first movable barrel (4) and the outer barrel (1) are respectively provided with grooves that cooperate with the first protruding ring (15) and the second protruding ring (21).
4. The heat pump low-temperature evaporation crystallization drying apparatus according to claim 1, characterized in that: A fixing ring (8) is fixedly installed on the outside of the outer barrel (1). The bottom of the fixing ring (8) is provided with multiple sets of support legs (10). The fixing ring (8) is located at the bottom of the heating device (13).
5. The heat pump low-temperature evaporation crystallization drying apparatus according to claim 1, characterized in that: An exhaust pipe (7) is fixedly connected to one side of the outer barrel (1), and the other end of the exhaust pipe (7) passes through the inner barrel (18). A feed pipe (6) is fixedly connected to one side of the sealing cover (2).
6. The heat pump low-temperature evaporation crystallization drying apparatus according to claim 1, characterized in that: Both the inner barrel (18) and the second movable barrel (17) are made of stainless steel, and the outer barrel (1) is provided with heat insulation material on the outside.
7. The heat pump low-temperature evaporation crystallization drying apparatus according to claim 1, characterized in that: The stirring block (16) is composed of multiple sets of semi-arc elongated blocks, and the stirring block (16) is in contact with the inner wall of the second movable barrel (17).