Multi-layer rotating disc type drying machine
By setting up a hollow heating disk and material scraping unit in a multi-layer rotary disc dryer, the problems of uneven material distribution and insufficient turn are solved, and efficient and uniform drying effect is achieved, and energy consumption is reduced.
Patent Information
- Application Number
- CN202422332786.9
- Authority / Receiving Office
- CN · China
- Patent Type
- Utility models(China)
- Current Assignee / Owner
- Filing Date
- 2024-09-24
- Publication Date
- 2025-07-04
- Estimated Expiration
- 2034-09-24
AI Technical Summary
The existing disc dryers have problems of local overheating or uneven drying caused by uneven material distribution, easy accumulation, and insufficient turn, which limits the improvement of drying efficiency and increases energy consumption.
A multi-layer rotary disc dryer is designed, and a hollow heating plate and material scraping unit are installed. The scraper assembly is driven to rotate on the heating plate through the transmission spindle to achieve uniform distribution and turn of materials. Combined with the discharge port design between the outer peripheral side and the center phase, a material cyclonic and cross-flow mode is formed to ensure uniform heating.
It improves drying efficiency, avoids local overheating or uneven drying, reduces energy consumption, and achieves an efficient and uniform drying process.
Smart Images
Figure CN223064257U_ABST
Abstract
Description
Technical Field
[0001] The utility model relates to the technical field of dryers, in particular to a multi-layer rotary disk dryer. Background Art
[0002] The disk dryer is an efficient and multi-functional continuous drying equipment, which is widely used in the fields of chemical industry, pharmacy, food and environmental protection. It uses multiple layers of disc-shaped heating plates as the core components, and the heating medium circulates in the plates to uniformly heat and dry the materials placed on the plates.
[0003] However, the existing disk dryers often have problems such as uneven material distribution, easy accumulation in some areas of the plate surface to form dead corners, and local overheating or uneven drying caused by insufficient turning. These problems limit the improvement of drying efficiency, increase energy consumption, and may affect the quality of the final product. Summary of the Invention
[0004] To solve the above problems, the present application provides a multi-layer rotary disk dryer, which is provided with a casing. A hollow heating plate is arranged inside the casing, and a transmission drive unit is arranged on the casing. The transmission drive unit includes a transmission main shaft, the transmission main shaft penetrates through the hollow heating plate, a material scraping unit is arranged on the transmission main shaft, the material scraping unit is in contact with the hollow heating plate, there are multiple hollow heating plates, the hollow heating plates are disc-shaped, and outer edge discharge ports and central discharge ports are alternately arranged on the outer peripheral side or the center of each layer of hollow heating plate.
[0005] In one embodiment, the material scraping unit includes a stirring arm installed on the transmission main shaft, and a scraping plate assembly is arranged on the stirring arm. The scraping plate assembly is in contact with the hollow heating plate.
[0006] In one embodiment, the scraping plate assembly is rotatably installed on the stirring arm, and a pressing spring is arranged on the stirring arm. The pressing spring presses the scraping plate assembly so that the scraping plate assembly is always in contact with the hollow heating plate.
[0007] In one embodiment, the included angle directions of the scraping plate assemblies on adjacent two layers of hollow heating plates are opposite.
[0008] In one embodiment, four stirring arms are arranged on each layer of hollow heating plate, the adjacent stirring arms are spaced at the same angle, and two scraping plate assemblies are arranged on each stirring arm.
[0009] In one embodiment, a steam inlet pipe and a steam outlet pipe are arranged on the hollow heating plate, and the steam inlet pipe and the steam outlet pipe are respectively located on both sides of the hollow heating plate.
[0010] In one embodiment, a material discharge port is arranged at the bottom of the casing, and the material discharge port is communicated with a discharge auger.
[0011] In one embodiment, the transmission drive unit further includes a drive motor, and the drive motor is connected to the speed reducer through a conveyor belt.
[0012] The beneficial effects of the present utility model are as follows:
[0013] A multi-layer rotary disk dryer of the present application is provided with a casing. A hollow heating disk is arranged inside the casing. A transmission drive unit is arranged on the casing. The transmission drive unit includes a transmission main shaft. A material scraping unit is arranged on the transmission main shaft. The material scraping unit is in contact with the hollow heating disk. An outer edge discharge port and a central discharge port are alternately arranged on the outer peripheral side or the center of each layer of the hollow heating disk. When the equipment is running, wet materials are evenly and continuously added onto the uppermost layer of the hollow heating disk. The heat medium enters through the jacket gap of the hollow heating disk to heat the materials, so that the moisture in the materials evaporates. At the same time, the material scraping unit rotates driven by the transmission main shaft, continuously scraping, dispersing and turning the materials to ensure uniform heating of the materials and improve the drying efficiency. The outer edge discharge port and the central discharge port are alternately arranged on the outer peripheral side or the center of the hollow heating disk for the inlet and outlet of materials and the inter-layer transfer, realizing the flow pattern of material swirling cross-flow, which helps the uniform distribution and turning of the materials on the hollow heating disk, reduces the accumulation and dead angles of the materials on the hollow heating disk, and improves the drying efficiency. Through the turning of the material scraping unit, the materials can be evenly heated, avoiding the phenomena of local overheating or uneven drying, thereby improving the drying efficiency and reducing the energy consumption. The multi-layer rotary disk dryer of the present application has the advantages of high thermal efficiency, uniform drying and simple operation. Description of the Drawings
[0014] Figure 1 is a schematic structural diagram of the utility model;
[0015] Figure 2 is a front view of the utility model;
[0016] Figure 3 is a schematic diagram of the internal structure of the casing;
[0017] Figure 4 is Figure 3 a partial schematic diagram at position A in
[0018] Symbol description in the figure:
[0019] 1. Casing; 11. Material discharge port; 12. Discharge auger;
[0020] 2. Hollow heating disk; 21. Outer edge discharge port; 22. Central discharge port; 23. Steam inlet pipe; 24. Steam outlet pipe;
[0021] 3. Transmission drive unit; 31. Transmission main shaft; 32. Drive motor; 33. Speed reducer;
[0022] 4. Material scraping unit; 41. Stirring arm; 42. Scraper assembly; 43. Pressing spring. Detailed implementation manner
[0023] In order to make the technical problems, technical solutions and beneficial effects to be solved by the present application clearer and more understandable, the present application will be further described in detail below in conjunction with the accompanying drawings and embodiments. It should be understood that the specific embodiments described herein are only used to explain the present application and are not used to limit the present application.
[0024] It should be noted that the terms "first" and "second" are only used for descriptive purposes and cannot be understood as indicating or implying relative importance or implicitly specifying the quantity of the indicated technical features. Thus, the features defined with "first" and "second" may explicitly or implicitly include one or more of such features. In the description of the present application, "a plurality" means two or more, unless otherwise specifically defined.
[0025] As Figures 1-4 shown, a multi-layer rotary disk dryer is provided with a casing 1. A hollow heating disk 2 is arranged inside the casing 1. A transmission drive unit 3 is arranged on the casing 1. The transmission drive unit 3 includes a transmission main shaft 31. The transmission main shaft 31 penetrates through the hollow heating disk 2. A material scraping unit 4 is arranged on the transmission main shaft 31. The material scraping unit 4 is in contact with the hollow heating disk 2. There are a plurality of hollow heating disks 2, and the hollow heating disks 2 are disk-shaped. An outer edge discharge port 21 and a central discharge port 22 are alternately arranged on the outer peripheral side or the center of each layer of the hollow heating disk 2.
[0026] Specifically, the hollow heating disk is fixedly installed inside the machine housing 1, and the driving main shaft 31 can drive the material scraping unit 4 to rotate along the upper surface of the hollow heating disk 2. The machine housing 1 serves as the outer shell of the entire dryer, protecting the internal components and maintaining the airtightness of the equipment. A plurality of disk-shaped hollow heating disks 2 are arranged axially along the driving main shaft 31. Each hollow heating disk 2 has a jacket gap inside for introducing a heat medium for heating. The outer peripheral side or the center of the hollow heating disk 2 is alternately provided with an outer edge discharge port 21 and a center discharge port 22 for the inlet and outlet of materials and the interlayer transfer. The material scraping unit 4 is installed on the driving main shaft 31 and is in contact with the hollow heating disk 2, and is used for leveling, dispersing, and turning the material to ensure uniform heating of the material and promote the evaporation of moisture. When the equipment is running, the wet material is evenly and continuously added onto the uppermost hollow heating disk 2. The heat medium enters through the jacket gap of the hollow heating disk 2 to heat the material, causing the moisture in the material to evaporate. At the same time, the material scraping unit 4 rotates driven by the driving main shaft 31, continuously leveling, dispersing, and turning the material to ensure uniform heating of the material and improve the drying efficiency. Due to the scraping action of the material scraping unit 4, the material forms a certain movement trend on the hollow heating disk 2. The material on the hollow heating disk 2 provided with the center discharge port 22 moves towards the center under the scraping of the material scraping unit 4 and falls through the center discharge port 22 onto the hollow heating disk 2 provided with the outer edge discharge port 21 on the next layer; the material on the hollow heating disk 2 provided with the outer edge discharge port 21 moves outwards, and after exceeding the outer edge, it falls onto the hollow heating disk 2 provided with the center discharge port 22 on the next layer. This process repeats in a cycle of swirling and cross-flow until the material is transferred to the bottom hollow heating disk 2, and the dried material is discharged through the bottom hollow heating disk 2. The outer peripheral side or the center of the hollow heating disk 2 is alternately provided with the outer edge discharge port 21 and the center discharge port 22 for the inlet and outlet of materials and the interlayer transfer, realizing the swirling and cross-flow flow pattern of the material, which helps the uniform distribution and turning of the material on the hollow heating disk 2, reduces the accumulation and dead corners of the material on the hollow heating disk 2, and improves the drying efficiency; through the turning of the material scraping unit 4, the material can be evenly heated, avoiding local overheating or uneven drying, thereby improving the drying efficiency and reducing the energy consumption; the multi-layer rotating disk dryer of the present application has the advantages of high thermal efficiency, uniform drying, and simple operation.
[0027] As Figure 4 shown, the material scraping unit 4 includes a stirring arm 41 installed on the driving main shaft 31, and a scraping plate assembly 42 is arranged on the stirring arm 41. The scraping plate assembly 42 is in contact with the hollow heating disk 2.
[0028] Specifically, when the dryer is started, the driving main shaft 31 begins to rotate driven by a power source such as a motor. The stirring arm 41 rotates together with the main shaft, driving the scraper assembly 42 to move on the hollow heating plate 2. During the rotation process, the scraper assembly 42 continuously contacts the materials on the hollow heating plate 2, scraping the materials from one area of the heating plate to another area. The turning effect helps to evenly distribute the materials, preventing the materials from accumulating or forming dead corners on the heating plate. The turning effect of the scraper assembly 42 can also promote the full contact between the materials and the heat medium, improve the heat exchange efficiency, accelerate the drying process of the materials, and reduce the energy consumption.
[0029] As Figure 4 shown, the scraper assembly 42 is rotatably mounted on the stirring arm 41. A pressing spring 43 is arranged on the stirring arm 41, and the pressing spring 43 presses the scraper assembly 42, so that the scraper assembly 42 is always in contact with the hollow heating plate 2.
[0030] Specifically, the scraper assembly 42 is not fixedly mounted on the stirring arm 41, but can rotate freely within a certain range. This design allows the scraper assembly 42 to automatically adjust the angle and position when it contacts the uneven surface or material accumulation on the hollow heating plate 2, so as to better adapt to and scrape the materials. The pressing spring 43 is mounted on the stirring arm 41 and continuously presses the scraper assembly 42, keeping it always in close contact with the hollow heating plate 2, ensuring that no matter how the stirring arm 41 rotates or how the scraper assembly 42 rotates, the scraper can effectively scrape the materials on the hollow heating plate 2.
[0031] As Figure 4 shown, the included angle directions of the scraper assemblies 42 on two adjacent layers of hollow heating plates 2 are opposite.
[0032] Specifically, with the rotation of the driving main shaft 31, the stirring arm 41 drives the scraper assembly 42 to rotate on the hollow heating plate 2. Due to the opposite included angle directions of the scraper assemblies 42 on two adjacent layers, opposite scraping effects will be produced on the materials during the rotation process. On the hollow heating plate 2 provided with the central discharge port 22, the materials are scraped towards the center and fall into the next layer of outer heating plate through the central discharge port 22; on the hollow heating plate 2 provided with the outer edge discharge port 21, the materials are scraped towards the outer edge and enter the next layer of hollow heating plate 2 through the outer edge discharge port 21. The opposite included angle directions of the scraper assemblies 42 on two adjacent layers contribute to the smooth flow of the materials during the interlayer transfer process.
[0033] As Figure 4 shown, four stirring arms 41 are arranged on each layer of hollow heating plate 2, the adjacent stirring arms 41 are spaced at the same angle, and two scraper assemblies 42 are arranged on each stirring arm 41.
[0034] Specifically, four stirring arms 41 are evenly distributed on the layer hollow heating plate 2, and the interval angles between them are the same, ensuring that the stirring arms 41 can cover all areas of the hollow heating plate 2 during rotation. Two scraper assemblies 42 are provided on each stirring arm 41, increasing the frequency and area of scraping the material and improving the drying efficiency.
[0035] As Figure 4 shown, a steam inlet pipe 23 and a steam outlet pipe 24 are provided on the hollow heating plate 2, and the steam inlet pipe 23 and the steam outlet pipe 24 are respectively located on both sides of the hollow heating plate 2.
[0036] Specifically, high-temperature steam enters the internal space of the hollow heating plate 2 through the steam inlet pipe 23. Since the heating plate is hollow, the steam can flow freely in the plate and fill the entire space, forming a steam chamber. When the steam flows in the heating plate, the heat it carries is transferred to the material in contact with it through the wall of the heating plate. After the material absorbs the heat, the moisture in it begins to evaporate, thus achieving the purpose of drying. The steam inlet pipe 23 and the steam outlet pipe 24 are respectively located on both sides of the hollow heating plate 2, which helps the steam to be evenly distributed in the plate, thereby achieving uniform heating of the material.
[0037] As Figure 2 、 3 shown, a material discharge port 11 is provided at the bottom of the machine shell 1, and the material discharge port 11 is communicated with the discharge auger 12.
[0038] Specifically, the material discharge port 11 is provided at the bottom of the machine shell 1, and the material is dried layer by layer from top to bottom and discharged through the material discharge port 11. The connection between the material discharge port 11 and the discharge auger 12 ensures that the tray continuous dryer can efficiently complete the drying and conveying process of the material. The dried material falls into the discharge auger 12 through the discharge port 11 and is conveyed to the designated position.
[0039] As Figure 3 shown, the transmission drive unit 3 further includes a drive motor 32, and the drive motor 32 is connected to the speed reducer 33 through a conveyor belt.
[0040] Specifically, the drive motor 32 drives the speed reducer 33 to rotate through the conveyor belt, and the speed reducer 33 drives the transmission main shaft 31 to rotate.
[0041] In this application, a multi-layer rotary disk dryer is provided with a housing 1. Inside the housing 1, a hollow heating disk 2 is arranged. On the housing 1, a transmission drive unit 3 is provided. The transmission drive unit 3 includes a transmission main shaft 31. On the transmission main shaft 31, a material scraping unit 4 is arranged. The material scraping unit 4 is in contact with the hollow heating disk 2. On the outer peripheral side or the center of each layer of the hollow heating disk 2, an outer edge discharge port 21 and a center discharge port 22 are arranged alternately. When the equipment is running, wet materials are evenly and continuously added onto the uppermost layer of the hollow heating disk 2. The heat medium enters through the jacket gap of the hollow heating disk 2 to heat the materials, causing the moisture in the materials to evaporate. At the same time, the material scraping unit 4 rotates driven by the transmission main shaft 31, continuously scraping, dispersing, and turning the materials to ensure uniform heating of the materials and improve the drying efficiency. The outer edge discharge port 21 and the center discharge port 22 are arranged alternately on the outer peripheral side or the center of the hollow heating disk 2 for the inlet and outlet of materials and the inter-layer transfer, realizing the flow pattern of material swirling cross-flow, which helps the uniform distribution and turning of the materials on the hollow heating disk 2, reduces the accumulation and dead corners of the materials on the hollow heating disk 2, and improves the drying efficiency. Through the turning of the material scraping unit 4, the materials can be evenly heated, avoiding local overheating or uneven drying, thereby improving the drying efficiency and reducing the energy consumption. The multi-layer rotary disk dryer of this application has the advantages of high thermal efficiency, uniform drying, and simple operation.
[0042] Although the embodiments of the present utility model have been shown and described, for those of ordinary skill in the art, it can be understood that various changes, modifications, substitutions, and variations can be made to these embodiments without departing from the principle and spirit of the present utility model. The scope of the present utility model is defined by the appended claims and their equivalents.
[0043] In the description of the present utility model, it should be noted that unless otherwise clearly specified and limited, the terms "installation", "connection", and "connection" should be understood in a broad sense. For example, it can be a fixed connection, a detachable connection, or an integral connection; it can be a mechanical connection or an electrical connection; it can also be directly connected or indirectly connected through an intermediate medium, and it can be the communication inside two components. For those of ordinary skill in the art, the specific meanings of the above terms in the present utility model can be understood according to specific situations.
Claims
1. A multi-layer rotary disk dryer is provided with a casing (1), a hollow heating disk (2) is arranged inside the casing (1), a transmission drive unit (3) is arranged on the casing (1), the transmission drive unit (3) includes a transmission main shaft (31), and the transmission main shaft (31) penetrates through the hollow heating disk (2), and is characterized in that, A material scraping unit (4) is provided on the transmission main shaft (31), and the material scraping unit (4) is in contact with the hollow heating plate (2). There are a plurality of the hollow heating plates (2), and the hollow heating plates (2) are disc-shaped. An outer edge discharge port (21) and a central discharge port (22) are alternately arranged on the outer peripheral side or the center of each layer of the hollow heating plate (2).
2. The multi-layer rotary disk dryer according to claim 1, characterized in that, The material scraping unit (4) includes a stirring arm (41) installed on the transmission main shaft (31), and a scraping plate assembly (42) is arranged on the stirring arm (41), and the scraping plate assembly (42) is in contact with the hollow heating plate (2).
3. The multi-layer rotary disk dryer according to claim 2, characterized in that, The scraping plate assembly (42) is rotatably installed on the stirring arm (41), and a pressing spring (43) is arranged on the stirring arm (41). The pressing spring (43) presses the scraping plate assembly (42) so that the scraping plate assembly (42) is always in contact with the hollow heating plate (2).
4. A multi-layer rotary disk dryer according to claim 2, characterized in that, The included angle directions of the scraping plate assemblies (42) on two adjacent layers of the hollow heating plates (2) are opposite.
5. The multi-layer rotary disk dryer according to claim 2, characterized in that, Four stirring arms (41) are arranged on each layer of the hollow heating plate (2), and the adjacent stirring arms (41) are spaced at the same angle. Two scraping plate assemblies (42) are arranged on each stirring arm (41).
6. The multi-layer rotary disk dryer according to claim 1, characterized in that, An inlet steam pipe (23) and an outlet steam pipe (24) are arranged on the hollow heating plate (2), and the inlet steam pipe (23) and the outlet steam pipe (24) are respectively located on both sides of the hollow heating plate (2).
7. The multi-layer rotary disk dryer according to claim 5, characterized in that, A material discharge port (11) is arranged at the bottom of the machine shell (1), and the material discharge port (11) is communicated with a discharge auger (12).
8. A multi-layer rotary disk dryer according to claim 1, characterized in that, The transmission drive unit (3) further includes a drive motor (32), and the drive motor (32) is connected to a speed reducer (33) through a conveyor belt.