An ultra-high temperature atmosphere tray drier

Abstract

The utility model discloses a kind of ultrahigh temperature atmosphere disc dryer, the left side of disc dryer host is equipped with the closed high-temperature heat-conducting oil furnace connected therewith;The inside of disc dryer host is provided with high-temperature jacket and low-temperature jacket, the low-temperature jacket is located at the bottom of high-temperature jacket, the bottom of disc dryer host is fixedly installed with driving motor, the inner wall of disc dryer host is rotatably installed with main shaft;The utility model, material is evenly distributed on top layer drying layer board by screw feeder, under the push of scraper, it completes dehydration process by layer by layer falling, finally after two layers of cooling layer rapid cooling, ensure that discharge temperature is controlled below 50 ℃, simultaneously equipped with wet exhaust fan can promptly discharge evaporative moisture, maintain drying efficiency, ensure that equipment operation is safe and reliable.

Description

Technical Field

[0001] This utility model relates to the field of dryer technology, and more specifically, to an ultra-high temperature atmosphere disc dryer. Background Technology

[0002] Currently, conventional atmosphere disc dryers are widely used in industrial production, but several technical bottlenecks still need to be addressed in their actual use. Traditional disc dryers typically cannot exceed 250℃ in operating temperature. This temperature limitation often prevents sufficient dehydration when processing materials containing water of crystallization (such as certain chemical raw materials and pharmaceutical intermediates), seriously affecting product quality and production efficiency.

[0003] First, regarding the temperature resistance of materials, key components of traditional equipment often use ordinary metal materials or simple coatings, which are prone to deformation, oxidation, or even damage under continuous high-temperature conditions. This not only shortens the equipment's lifespan but may also cause metal ion contamination of materials. Second, existing heating systems mostly use electric heating or ordinary thermal oil furnaces, which have low heat transfer efficiency and insufficient temperature control precision, making it difficult to achieve a stable ultra-high temperature working environment. More importantly, traditional equipment has poor airtightness and atmosphere control capabilities, failing to effectively establish an inert protective environment. This leads to easy oxidation reactions of materials at high temperatures, ultimately affecting product quality. Utility Model Content

[0004] In view of the problems existing in the prior art, the purpose of this utility model is to provide an ultra-high temperature atmosphere disc dryer to solve the above-mentioned technical problems and improve production efficiency.

[0005] To achieve the above objectives, the present invention adopts the following technical solution; A high-temperature atmosphere disc dryer includes a disc dryer main unit, and a sealed high-temperature heat transfer oil furnace connected to the left side of the disc dryer main unit. The disc dryer main unit has a high-temperature jacket and a low-temperature jacket inside, with the low-temperature jacket located at the bottom of the high-temperature jacket. A drive motor is fixedly installed at the bottom of the disc dryer main unit. A main shaft is rotatably mounted on the inner wall of the disc dryer main unit, with its bottom end penetrating the disc dryer main unit and drivingly connected to the output shaft of the drive motor. Evenly distributed drying and cooling layers are fixedly installed on the inner wall of the disc dryer main unit. The drying layers are located inside the high-temperature jacket, and the cooling layers are located inside the low-temperature jacket. Pneumatic actuators are installed on both the drying and cooling plates. A screw feeder and a feed hopper are fixedly installed on the top of the main body of the disc dryer. The screw feeder is connected to the feed hopper and the interior of the main body of the disc dryer. Nitrogen replenishment ports are evenly distributed on the outside of the main shaft. Scrapers are evenly distributed on the outside of the main shaft. The evenly distributed nitrogen replenishment ports and scrapers are located on the top of the drying and cooling plates. The sealed high-temperature thermal oil furnace is connected to the interior of the high-temperature jacket through a pipe. A discharge valve is installed at the bottom of the main body of the disc dryer.

[0006] As a further description of the above technical solution: the outer sides of both the drying plate and the cooling plate are coated with tungsten carbide, and the scraper is made of high-temperature resistant material such as glass fiber resin.

[0007] As a further description of the above technical solution: both the drying plate and the cooling plate are rotary sealed with the main shaft.

[0008] As a further description of the above technical solution: a nitrogen preheater is installed on the left side of the main body of the disc dryer, and the nitrogen preheater is connected to the top of the main shaft through a pipe.

[0009] As a further description of the above technical solution: a pressure relief valve is installed on the top of the main unit of the disc dryer.

[0010] As a further description of the above technical solution: a dehumidifying fan is installed on the right side of the main body of the disc dryer, and the dehumidifying fan is connected to the inside of the feed hopper through a pipe.

[0011] Compared with existing technologies, the advantages of this utility model are: This utility model uses tungsten carbide spraying treatment on the feeding screw and the baking tray surface, and the scraper is made of high temperature resistant glass fiber resin material to ensure that the whole set of equipment can operate stably for a long time in a high temperature environment of 400℃. The core heating system adopts a closed high temperature heat transfer oil furnace, equipped with 450 type heat transfer oil, with a design temperature of 400℃ and the actual working temperature is stably controlled below 350℃. Through a unique fully enclosed system design, nitrogen is preheated by a nitrogen preheater and then evenly injected through the multi-layer nitrogen replenishment port of the main shaft. This not only avoids the entry of cold nitrogen and the generation of condensate, but also ensures the stability of the dry atmosphere in each layer. In terms of process flow, the material is evenly distributed on the top drying plate by the screw feeder, and falls layer by layer under the push of the scraper to complete the dehydration process. Finally, it passes through two cooling layers to cool down quickly, ensuring that the discharge temperature is controlled below 50℃. At the same time, the equipped dehumidifying fan can promptly discharge the evaporated moisture, maintain drying efficiency, and ensure the safe and reliable operation of the equipment. Attached Figure Description

[0012] Figure 1 This is a front view structural diagram of the present utility model; Figure 2 This is a top view of the structure of this utility model; Figure 3 This is a schematic cross-sectional view of the main unit of the disc dryer of this utility model.

[0013] Explanation of the labels in the diagram: 1. Disc dryer main unit; 101. High-temperature jacket; 102. Low-temperature jacket; 2. Sealed high-temperature thermal oil furnace; 3. Drive motor; 4. Main shaft; 401. Nitrogen replenishment port; 402. Scraper; 5. Drying shelf; 6. Cooling shelf; 7. Pneumatic actuator; 8. Screw feeder; 9. Feed hopper; 10. Discharge valve; 11. Nitrogen preheater; 12. Explosion relief valve; 13. Exhaust fan. Detailed Implementation

[0014] The technical solutions of the present invention will be clearly and completely described below with reference to the accompanying drawings of the embodiments of the present invention.

[0015] Please see Figures 1-3This utility model discloses an ultra-high temperature atmosphere disc dryer, comprising a disc dryer main unit 1, a sealed high-temperature thermal oil furnace 2 connected to the left side of the disc dryer main unit 1, a high-temperature jacket 101 and a low-temperature jacket 102 inside the disc dryer main unit 1, the low-temperature jacket 102 being located at the bottom of the high-temperature jacket 101, a drive motor 3 fixedly installed at the bottom of the disc dryer main unit 1, a main shaft 4 rotatably installed on the inner wall of the disc dryer main unit 1, the bottom end of the main shaft 4 penetrating the disc dryer main unit 1 and being connected to the output shaft of the drive motor 3, and uniformly distributed drying plates 5 and cooling plates 6 fixedly installed on the inner wall of the disc dryer main unit 1, the drying plates 5 being located inside the high-temperature jacket 101, and the cooling plates 6 being located inside the high-temperature jacket 101. Inside the low-temperature jacket 102, pneumatic actuators 7 are installed on both the drying plate 5 and the cooling plate 6. A screw feeder 8 and a feed hopper 9 are fixedly installed on the top of the disc dryer main unit 1. The screw feeder 8 is connected to the feed hopper 9 and the interior of the disc dryer main unit 1. Nitrogen replenishment ports 401 are evenly distributed on the outside of the main shaft 4. Scrapers 402 are evenly distributed on the outside of the main shaft 4. The evenly distributed nitrogen replenishment ports 401 and scrapers 402 are located on the top of the drying plate 5 and the cooling plate 6. The sealed high-temperature thermal oil furnace 2 is connected to the interior of the high-temperature jacket 101 through a pipe. A discharge valve 10 is installed at the bottom of the disc dryer main unit 1. A refrigerant pipe is connected to the low-temperature jacket 102 for transporting cooling substances. The outer sides of the drying plate 5 and the cooling plate 6 are both coated with tungsten carbide, and the scraper 402 is made of high-temperature resistant material such as glass fiber resin. The drying plate 5 and the cooling plate 6 are both rotary sealed to the main shaft 4. In addition, a nitrogen preheater 11 is installed on the left side of the disc dryer main unit 1. The nitrogen preheater 11 is connected to the top of the main shaft 4 through a pipe.

[0016] In this invention, when ultra-high temperature atmosphere drying is required, the material is fed into the feed hopper 9 and then evenly conveyed to the drying plate 5 on the top of the main unit 1 of the disc dryer by the screw feeder 8.

[0017] The drive motor 3 starts and drives the main shaft 4 to rotate. The scraper 402 fixed on the main shaft 4 rotates synchronously, pushing the material to spread evenly on the surface of the drying shelf 5. The closed high-temperature heat transfer oil furnace 2 continuously supplies high-temperature heat transfer oil to the high-temperature jacket 101. Equipped with 450 type heat transfer oil, the drying shelf 5 maintains the set temperature. At the same time, the nitrogen preheater 11 heats the inert gas and injects it into the drying chamber through the nitrogen replenishment port 401 of the main shaft 4 to form a low-oxygen high-temperature environment, avoiding oxidation and denaturation of the material. The tungsten carbide-coated shelf and the glass fiber resin scraper 402 can withstand long-term high-temperature friction, extending the service life of the equipment.

[0018] After the material undergoes initial dehydration on the first drying shelf 5, the pneumatic actuator 7 opens the valve, allowing the material to fall to the next drying shelf 5. This process is repeated, and after five layers of high-temperature drying, the moisture content of the material gradually decreases to the required process value. Subsequently, the material enters the bottom two cooling shelves 6, where a cooling medium such as circulating water or low-temperature heat transfer oil is introduced into the low-temperature jacket 102 to rapidly reduce the material temperature and prevent residual heat from causing quality deterioration. The cooled finished product is then discharged through the discharge valve 10, completing the entire drying process.

[0019] Please see Figures 1-3 Among them, the top of the disc dryer main unit 1 is equipped with a relief valve 12.

[0020] In this utility model, the explosion relief valve 12 is installed on the top of the disc dryer main unit 1. It is used to automatically release pressure when the system pressure rises abnormally, so as to ensure the safe operation of the equipment. It is triggered by a preset pressure threshold to avoid the risk of overpressure caused by high temperature gas expansion or gas generation from material reaction.

[0021] Please see Figure 1 and 2 Among them, the right side of the disc dryer main unit 1 is equipped with a dehumidifying fan 13, which is connected to the inside of the feed hopper 9 through a pipe.

[0022] In this invention, the feed hopper 9 is connected to the right side of the main unit 1 of the disc dryer via a pipe. During the drying process, it continuously extracts and discharges evaporated water and volatile substances, maintains a low humidity environment in the drying chamber, and improves dehydration efficiency. At the same time, it works in conjunction with the nitrogen preheater 11 to form a closed-loop gas circulation system, reducing inert gas loss and lowering energy consumption.

[0023] The above description is merely a preferred embodiment of this utility model; however, the protection scope of this utility model is not limited thereto. Any equivalent substitutions or modifications made by those skilled in the art within the technical scope disclosed in this utility model, based on the technical solution and its improved concept, should be included within the protection scope of this utility model.

Claims

1. A high-temperature atmosphere disc dryer, comprising a disc dryer main unit (1), characterized in that: A sealed high-temperature thermal oil furnace (2) is installed on the left side of the main unit (1) of the disc dryer. The disc dryer main unit (1) has a high-temperature jacket (101) and a low-temperature jacket (102) inside. The low-temperature jacket (102) is located at the bottom of the high-temperature jacket (101). A drive motor (3) is fixedly installed at the bottom of the disc dryer main unit (1). A main shaft (4) is rotatably installed on the inner wall of the disc dryer main unit (1). The bottom end of the main shaft (4) passes through the disc dryer main unit (1) and is connected to the output shaft of the drive motor (3). The drying plate (5) and cooling plate (6) are uniformly distributed and fixedly installed. The drying plate (5) is located inside the high temperature jacket (101), and the cooling plate (6) is located inside the low temperature jacket (102). Pneumatic actuators (7) are installed on both the drying plate (5) and the cooling plate (6). A screw feeder (8) and a feed hopper (9) are fixedly installed on the top of the disc dryer main unit (1). The screw feeder (8) is connected to the feed hopper (9) and the interior of the disc dryer main unit (1) respectively. The main shaft (4) has uniformly distributed nitrogen supply ports (401) on its outer side. The main shaft (4) has uniformly distributed scrapers (402) fixedly installed on its outer side. The uniformly distributed nitrogen supply ports (401) and scrapers (402) are located at the top of the drying plate (5) and the cooling plate (6). The sealed high-temperature thermal oil furnace (2) is connected to the inside of the high-temperature jacket (101) through a pipe. The bottom of the disc dryer main unit (1) is equipped with a discharge valve (10).

2. The ultra-high temperature atmosphere disc dryer according to claim 1, characterized in that: The outer sides of the drying plate (5) and the cooling plate (6) are both coated with tungsten carbide, and the scraper (402) is made of high-temperature resistant glass fiber resin.

3. The ultra-high temperature atmosphere disc dryer according to claim 1, characterized in that: Both the drying plate (5) and the cooling plate (6) are rotary sealed with the main shaft (4).

4. The ultra-high temperature atmosphere disc dryer according to claim 1, characterized in that: A nitrogen preheater (11) is installed on the left side of the main unit (1) of the disc dryer, and the nitrogen preheater (11) is connected to the top of the main shaft (4) through a pipe.

5. The ultra-high temperature atmosphere disc dryer according to claim 1, characterized in that: An explosion relief valve (12) is installed on the top of the main unit (1) of the disc dryer.

6. The ultra-high temperature atmosphere disc dryer according to claim 1, characterized in that: A dehumidifying fan (13) is installed on the right side of the main unit (1) of the disc dryer, and the dehumidifying fan (13) is connected to the inside of the feed hopper (9) through a pipe.

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