A paddle dryer

Abstract

This utility model discloses a paddle dryer, including an L-shaped support, a heating main shaft, and a bearing housing. A lower heating chamber is located on one side of the top of the L-shaped support, and an upper heating chamber is located on top of the lower heating chamber. A discharge port is connected to the bottom of the lower heating chamber. This utility model utilizes a fresh air preheater and heating tubes for combined heating, along with steam-assisted heating, to rapidly increase the internal temperature of the equipment and effectively remove moisture from the material. A scraper can scrape off material from the inner wall of the lower heating chamber, preventing material accumulation and scaling, and ensuring the cleanliness of the equipment's interior. A cyclone separator separates and recovers material particles carried during the dehumidification process, reducing material waste and environmental pollution. A cooling water circulation system cools the bearing housing, lowering the operating temperature of the bearing and reducing wear. The included maintenance mechanism facilitates inspection, maintenance, and cleaning of the equipment's interior.

Description

Technical Field

[0001] This utility model relates to the field of dryer technology, specifically a paddle dryer. Background Technology

[0002] The paddle dryer uses steam, hot water, or heat transfer oil as the heating medium. The heat required for drying is conducted through the jacket and the paddle wall. As the paddles tumble and stir the material, the heating interface is constantly changed, so that the material is fully heated and dried, and then the dried material is conveyed out.

[0003] In existing technologies, most paddle dryers lack internal air preheating devices, making it impossible to quickly raise the temperature and remove moisture. This results in uneven heating of the material, leading to incomplete drying or overheating in certain areas. Consequently, they suffer from low drying efficiency, poor material drying quality, and poor equipment stability. Furthermore, there are no measures to deal with condensation at the top, affecting the drying quality. Moreover, the connection method between the bearing housing and the housing results in poor concentricity and low strength, leading to a short equipment lifespan and making the equipment inconvenient to use.

[0004] In light of this, we have introduced a paddle dryer. Utility Model Content

[0005] The purpose of this invention is to provide a paddle dryer to solve the problems mentioned in the background art.

[0006] To achieve the above objectives, this utility model provides the following technical solution: a paddle dryer, comprising: an L-shaped support, a heating main shaft, and a bearing housing;

[0007] A lower heating chamber is provided on one side of the top of the L-shaped bracket, an upper heating chamber is provided on the top of the lower heating chamber, and a discharge port is connected to the bottom of the lower heating chamber for discharging materials.

[0008] The heating spindle is located inside the lower heating chamber. A heating plate is provided on one side of the surface of the heating spindle. There are three sets of heating plates. A scraper is provided at the bottom of one set of heating plates. These three sets of heating plates play the role of heating materials during operation. The scraper contacts the inner wall of the lower heating chamber and adheres to the inner wall of the lower heating chamber. It can scrape off the material on the wall and assist in conveying.

[0009] The bearing housing is located on one side of the heating lower chamber, and the heating main shaft passes through the bearing housing. The bearing housing is fitted with a bearing body on the surface of the heating main shaft. The bearing housing and the bearing body cooperate with each other to provide stable support for the heating main shaft, ensure its smooth rotation, and ensure the normal operation of the paddle dryer.

[0010] The top of the upper heating chamber is equipped with a heating mechanism. The heating mechanism, consisting of a fresh air preheater and a heating tube, works together to heat the interior of both the lower and upper heating chambers and remove moisture.

[0011] Preferably, the heating mechanism includes a channel pipe connected to the top of the upper heating chamber, a fresh air preheater connected inside the channel pipe, and a heating tube connected to the inner top wall of the upper heating chamber for directly releasing heat. A steam pipe is connected to the side of the lower heating chamber, and an inlet is provided on one side of the steam pipe. During operation, the preheated air, the heat from the heating tube, and the steam work together to create an efficient heating environment inside the equipment, which helps to dry the materials.

[0012] Preferably, a metal hose is connected inside the upper heating chamber and runs through the upper heating chamber. A rotary joint is connected to the surface of the metal hose on one side of the bearing seat. The metal hose is connected to the inlet, and the rotary joint allows the metal hose to rotate flexibly to adapt to the dynamic changes during equipment operation. The other end of the metal hose is connected to the inlet on the steam pipe, through which steam enters, ensuring that steam can be stably delivered to the heating area, providing sufficient heat for material drying and ensuring the smooth progress of the drying process.

[0013] Preferably, the bottom of the heating lower chamber is connected to a steam condensate pipe, which is connected to a rotary joint. A condensate outlet is connected to the surface of the steam condensate pipe. The bottom of the heating lower chamber is connected to the steam condensate pipe, and one end of the steam condensate pipe is connected to the rotary joint. Through the rotary joint, it can smoothly connect to the steam delivery pipeline, ensuring effective discharge of condensate. A condensate outlet is also provided on the surface of the steam condensate pipe. During equipment operation, the condensate formed when the steam cools is collected through the steam condensate pipe and discharged from the condensate outlet, maintaining a good heat exchange environment inside the equipment and ensuring efficient drying.

[0014] Preferably, the top of the bearing housing is connected to a cooling water outlet, and the bottom of the bearing housing is connected to a cooling water inlet. The top of the bearing housing has a cooling water outlet, and the bottom is connected to a cooling water inlet, thereby forming a cooling water circulation to cool the bearing housing. The interior of the heating lower housing is connected to the surface of the heating spindle with PTFE packing. The PTFE packing plays a role in sealing and reducing friction, ensuring stable operation of the equipment. A drive mechanism is provided on one side of the top of the L-shaped bracket.

[0015] Preferably, the drive mechanism includes a motor connected to the top of an L-shaped bracket, such as a Y-series three-phase asynchronous motor, which has advantages such as simple structure and reliable operation, providing power to the equipment. The output end of the motor is connected to a coupling, such as a flexible pin coupling, which can effectively compensate for the relative displacement of the two shafts and buffer vibration. A reducer is connected to one side of the coupling, such as an RV-series worm gear reducer, which has a large transmission ratio and compact structure. Gear A is connected to one side of the reducer, and gear B meshes with the surface of gear A. The heating main shaft passes through the lower heating housing, and gear B is connected to the surface of the heating main shaft. Gear A is connected to one side of the reducer, and gear A and gear B mesh with each other. The heating main shaft passes through the lower heating housing, and gear B is fixed to the surface of the heating main shaft. After the motor starts, the power is transmitted sequentially through the coupling, reducer, gear A, and gear B, driving the heating main shaft to rotate stably.

[0016] Preferably, a feeding port is connected to the top side of the upper heating chamber, which facilitates the addition of the material to be processed. An observation port is provided on the surface of the upper heating chamber, which allows external operators to observe the working status inside the upper heating chamber.

[0017] Preferably, the top of the heating upper chamber is connected to a vent, and a cyclone separator is connected to one side of the vent on the top of the heating upper chamber. The cyclone separator is of model XLP / B, which has high separation efficiency, simple structure, and can effectively trap material particles in the humid air, avoiding material loss. The top of the cyclone separator is connected to an exhaust pipe, and one end of the exhaust pipe is connected to an exhaust fan. The exhaust fan is commonly model 4-72, which has the characteristics of high efficiency and low noise, and can generate strong suction to extract the humid air processed by the cyclone separator. The top of the exhaust fan is connected to an exhaust pipe, and the top of the exhaust pipe is connected to a guide cover. The entire dehumidification system works closely together to efficiently discharge humid air, while reducing environmental pollution and ensuring the stable operation of the paddle dryer.

[0018] Preferably, the top of the heating upper box is provided with a maintenance mechanism, and the maintenance top cover is released by the fixing rod of the maintenance mechanism so that the maintenance top cover can be opened.

[0019] Preferably, the maintenance mechanism includes an inspection port connected to the top of the heating upper housing. An L-shaped seat is connected to one side of the inspection port, and a connecting seat is hinged to the surface of the L-shaped seat. An inspection top cover is connected to one side of the connecting seat. A positioning seat is connected to one side of the inspection port, and a fixing rod is hinged to the surface of the positioning seat. A fixing block is connected to the other side of the inspection top cover, and the fixing rod is fixed inside the fixing block. The inspection top cover is installed on one side of the connecting seat. A positioning seat is connected to the other side of the inspection port, and the fixing rod is hinged to the surface of the positioning seat. A fixing block is provided on the other side of the inspection top cover. Under normal conditions, the fixing rod is firmly fixed inside the fixing block, securely locking the inspection top cover. When maintenance is required, simply rotate the fixing rod to disengage it from the fixing block, and the inspection top cover can be opened around the hinge point between the L-shaped seat and the connecting seat, thus facilitating convenient inspection and maintenance of the equipment's interior.

[0020] Compared with the prior art, the beneficial effects of this utility model are:

[0021] (1) By adding an air preheater, the air entering the machine body is preheated, resulting in higher drying efficiency. The fresh air preheater and heating tube are heated together, combined with steam auxiliary heating, which can quickly increase the internal temperature of the equipment, effectively remove moisture from the material, and improve drying efficiency. The stirring action of the heating plate makes the material heat evenly, avoiding local overheating or insufficient drying, and ensuring the drying quality of the material.

[0022] (2) By installing heating coils in the jacket at the top of the dryer, the water droplets condensing on the top of the material during the drying process are evaporated, preventing water droplets from falling into the material and thus affecting the drying quality.

[0023] (3) The scraper can scrape off the material on the inner wall of the heating chamber, preventing material accumulation and scaling, ensuring the cleanliness of the equipment, and also helping to transport the material smoothly from the outlet, avoiding material residue.

[0024] (4) The material particles carried during the dehumidification process are separated and recovered by the cyclone separator, which reduces material waste and improves material utilization.

[0025] (5) The bearing body in the bearing housing cooperates with the heating spindle to ensure the stable rotation of the heating spindle. The cooling water circulation system cools the bearing housing, reduces the working temperature of the bearing body, reduces wear, and extends the service life of the equipment. The sealing and friction-reducing effects of the PTFE packing further improve the stability and reliability of the equipment operation.

[0026] (6) The design of the maintenance mechanism makes it easy to open the maintenance cover, which facilitates the inspection, maintenance and cleaning of the equipment, reduces the equipment maintenance cost and improves the maintainability of the equipment.

[0027] (7) The bearing housing and the dryer box are integrally cast and machined, resulting in high concentricity, high strength and longer service life. Attached Figure Description

[0028] Figure 1 This is a schematic diagram of the overall structure of this utility model;

[0029] Figure 2 This is a schematic diagram of the structure of the bearing housing, bearing body and heating spindle of this utility model when connected;

[0030] Figure 3 This is a schematic diagram of the maintenance mechanism of this utility model.

[0031] In the diagram: 1. Exhaust duct; 2. Exhaust fan; 3. Exhaust duct; 4. Cyclone separator; 5. Maintenance mechanism; 51. Maintenance top cover; 52. Fixing rod; 53. Positioning seat; 54. Fixing block; 55. L-shaped seat; 56. Connecting seat; 57. Maintenance port; 6. Cooling water inlet; 7. Exhaust outlet; 8. Feeding port; 9. Heating tube; 10. Heated upper housing; 11. Motor; 12. Coupling; 13. Reducer; 14. Gear A; 15. Gear B; 16. Heating plate; 17. Scraper; 18. Heating spindle; 19. Steam pipe; 20. Steam condensate pipe; 21. L-shaped bracket; 22. Inlet; 23. Condensate outlet; 24. Discharge port; 25. Lower heating chamber; 26. Metal hose; 27. Rotary joint; 28. Bearing housing; 29. ​​Cooling water outlet; 30. PTFE packing; 31. Observation port; 32. Channel pipe; 33. Fresh air preheater; 34. Guide cover; 35. Bearing seat. Detailed Implementation

[0032] 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.

[0033] Please see Figure 1-3 This utility model provides a technical solution: a paddle dryer, including: an L-shaped support 21, a heating lower box 25 is provided on one side of the top of the L-shaped support 21, a heating upper box 10 is provided on the top of the heating lower box 25, and a discharge port 24 is connected to the bottom of the heating lower box 25.

[0034] A heating spindle 18 is disposed inside the heating lower housing 25. A heating plate 16 is disposed on one side of the surface of the heating spindle 18. There are three sets of heating plates 16. A scraper 17 is disposed at the bottom of one set of heating plates 16. The scraper 17 contacts the inner wall of the heating lower housing 25.

[0035] The bearing housing 35 is disposed on one side of the heating lower housing 25, and the heating spindle 18 passes through the bearing housing 35. The bearing body 28 is sleeved inside the bearing housing 35 on the surface of the heating spindle 18.

[0036] The top of the upper heating chamber 10 is equipped with a heating mechanism. The fresh air preheater 33 and the heating tube 9 of the heating mechanism work together to heat the lower heating chamber 25 and the interior of the upper heating chamber 10 to remove moisture.

[0037] The heating mechanism includes a channel pipe 32 connected to the top of the upper heating chamber 10, a fresh air preheater 33 connected inside the channel pipe 32, and a fresh air preheater 33 installed inside the channel pipe 32 to preheat the incoming fresh air. The heating pipe 9 is connected to the inner top wall of the upper heating chamber 10 and is used to directly release heat. A steam pipe 19 is connected to the side of the lower heating chamber 25, and an inlet 22 is opened on one side of the steam pipe 19. During operation, the preheated air, the heat from the heating pipe 9, and the steam work together to create an efficient heating environment inside the equipment, which helps to dry the materials.

[0038] A metal hose 26 is connected inside the heating upper chamber 10 and penetrates the heating upper chamber 10. A rotary joint 27 is connected to the surface of the metal hose 26 on one side of the bearing seat 35. The metal hose 26 is connected to the inlet 22. The rotary joint 27 allows the metal hose 26 to rotate flexibly to adapt to the dynamic changes during equipment operation. The other end of the metal hose 26 is connected to the inlet 22 on the steam pipe 19, through which steam enters, ensuring that steam can be stably delivered to the heating area, providing sufficient heat for material drying and ensuring the smooth progress of the drying process.

[0039] The bottom of the heating lower chamber 25 is connected to a steam condensate pipe 20, which is connected to a rotary joint 27. A condensate outlet 23 is connected to the surface of the steam condensate pipe 20. One end of the steam condensate pipe 20 is connected to the rotary joint 27, which allows for smooth connection to the steam delivery pipeline, ensuring effective discharge of condensate. The surface of the steam condensate pipe 20 is also provided with a condensate outlet 23. During equipment operation, the condensate formed by the cooling of steam is collected through the steam condensate pipe 20 and discharged from the condensate outlet 23, maintaining a good heat exchange environment inside the equipment and ensuring efficient drying.

[0040] The top of the bearing housing 35 is connected to a cooling water outlet 29, and the bottom of the bearing housing 35 is connected to a cooling water inlet 6. The top of the bearing housing 35 is provided with a cooling water outlet 29, and the bottom is connected to a cooling water inlet 6, thereby forming a cooling water circulation to cool the bearing housing 35. The interior of the heating lower housing 25 is connected to the surface of the heating spindle 18 with PTFE packing 30. The PTFE packing 30 plays a role in sealing and reducing friction, ensuring stable operation of the equipment. A drive mechanism is provided on one side of the top of the L-shaped bracket 21.

[0041] The drive mechanism includes a motor 11 connected to the top of an L-shaped bracket 21. A common type is the Y-series three-phase asynchronous motor, which has advantages such as simple structure and reliable operation, providing power to the equipment. The output end of the motor 11 is connected to a coupling 12, such as a flexible pin coupling 12, which effectively compensates for the relative displacement of the two shafts and provides buffering and vibration reduction. A reducer 13 is connected to one side of the coupling 12. The reducer 13, such as an RV-series worm gear reducer 13, has a large transmission ratio and compact structure. One side of the reducer 13 is connected to... Gear A14 has gear B15 meshing on its surface. The heating main shaft 18 passes through the heating lower housing 25. Gear B15 is connected to the surface of the heating main shaft 18. Gear A14 is connected to one side of the reducer 13. Gear A14 and gear B15 mesh with each other. The heating main shaft 18 passes through the heating lower housing 25. Gear B15 is fixed to the surface of the heating main shaft 18. After the motor 11 starts, the power is transmitted sequentially through the coupling 12, reducer 13, gear A14 and gear B15, driving the heating main shaft 18 to rotate stably.

[0042] The top side of the upper heating chamber 10 is connected to a feeding port 8, which facilitates the addition of materials to be processed. An observation port 31 is provided on the surface of the upper heating chamber 10, which allows external operators to observe the working status inside the upper heating chamber 10.

[0043] The top of the heating upper chamber 10 is connected to a vent 7. A cyclone separator 4 is connected to one side of the vent 7 on the top of the heating upper chamber 10. The cyclone separator 4 is of model XLP / B, which has high separation efficiency and simple structure. It can effectively trap material particles in the humid air and avoid material loss. The top of the cyclone separator 4 is connected to an exhaust pipe 3. One end of the exhaust pipe 3 is connected to an exhaust fan 2. The exhaust fan 2 is a common model 4-72, which has the characteristics of high efficiency and low noise. It can generate strong suction to extract the humid air processed by the cyclone separator. The top of the exhaust fan 2 is connected to an exhaust pipe 1. The top of the exhaust pipe 1 is connected to a guide cover 34. The exhaust pipe 1 is equipped with a guide cover 34. The entire dehumidification system works closely together to efficiently discharge humid air, reduce environmental pollution, and ensure the stable operation of the paddle dryer.

[0044] The top of the heating upper box 10 is provided with a maintenance mechanism 5. The maintenance top cover 51 is released by the fixing rod 52 of the maintenance mechanism 5, so that the maintenance top cover 51 can be opened.

[0045] The maintenance mechanism 5 includes an inspection port 57 connected to the top of the heating upper housing 10. An L-shaped seat 55 is connected to one side of the inspection port 57, and a connecting seat 56 is hinged to the surface of the L-shaped seat 55. An inspection top cover 51 is connected to one side of the connecting seat 56. A positioning seat 53 is connected to one side of the inspection port 57, and a fixing rod 52 is hinged to the surface of the positioning seat 53. A fixing block 54 is connected to the other side of the inspection top cover 51, and the fixing rod 52 is fixed inside the fixing block 54. The L-shaped seat 55 is connected to one side of the inspection port 57, and the surface of the L-shaped seat 55 is connected by a hinge. Next, the connecting seat 56 is connected to the inspection top cover 51, which is installed on one side of the connecting seat 56. On the other side of the inspection port 57, the positioning seat 53 is connected, and the fixing rod 52 is hinged to the surface of the positioning seat 53. On the other side of the inspection top cover 51, the fixing block 54 is provided. Under normal conditions, the fixing rod 52 is firmly fixed inside the fixing block 54, which securely locks the inspection top cover 51. When maintenance is required, simply rotate the fixing rod 52 to disengage it from the fixing block 54, and the inspection top cover 51 can be opened with the hinge point between the L-shaped seat 55 and the connecting seat 56 as the axis, so as to conveniently inspect and maintain the inside of the equipment.

[0046] Specifically, during use, the material to be dried enters the equipment through the feeding port 8 on one side of the top of the heating upper chamber 10. During this process, the operator can continuously or intermittently add materials to the equipment according to production needs. The design of the feeding port 8 facilitates the smooth entry of materials into the drying area.

[0047] The heating mechanism starts working. The fresh air preheater 33 preheats the fresh air entering the channel pipe 32. The preheated air enters the upper heating chamber 10 and works together with the heat generated by the heating pipe 9 to fill the upper heating chamber 10 and the lower heating chamber 25 with hot air, thereby heating and drying the material. Steam enters through the inlet 22 on the steam pipe 19. The inlet 22 is connected to the metal hose 26, and the metal hose 26 is connected to the rotary joint 27 to ensure that the steam can smoothly enter the heating area. After the steam heats the material, it will turn into condensate and be discharged through the steam condensate pipe 20 to ensure normal heat exchange and drying environment inside the equipment.

[0048] The drive mechanism on one side of the top of the L-shaped bracket 21 is activated, and the motor 11 outputs power, which is transmitted to the reducer 13 through the coupling 12. After the reducer 13 reduces the power and increases the torque, it drives the gear A14 to rotate. The gear A14 meshes with the gear B15, thereby driving the heating main shaft 18 to rotate. The heating plate 16 on the surface of the heating main shaft 18 rotates with the heating main shaft 18, stirring the material, making the material heat more evenly during the heating process and improving the drying efficiency. At the same time, the scraper 17 at the bottom of the heating plate 16 contacts the inner wall of the heating lower chamber 25. As the heating plate 16 rotates, the scraper 17 can scrape off the material adhering to the inner wall of the heating lower chamber 25, avoiding material accumulation, ensuring the drying effect, and also pushing the material towards the discharge port 24.

[0049] The moisture generated during the drying process is discharged through the exhaust port 7 at the top of the heated upper chamber 10 by starting the induced draft fan 2. The cyclone separator 4 on one side of the exhaust port 7 performs preliminary treatment on the discharged moisture, separating out the small material particles carried in it to avoid material loss. The moisture after being treated by the cyclone separator 4 enters the induced draft fan 2 through the induced draft pipe 3. The induced draft fan 2 draws out the moisture and discharges it from the equipment through the exhaust pipe 1. The guide cover 34 at the top of the exhaust pipe 1 can guide the discharged moisture to diffuse in a specific direction to reduce the impact on the surrounding environment.

[0050] When it is necessary to inspect and maintain the inside of the equipment, the operation is carried out through the maintenance mechanism 5. The fixing rod 52 is hinged on the positioning seat 53. First, the fixing rod 52 is released from the fixing block 54. After the fixing is released, the fixing rod 52 can be rotated. Since the maintenance top cover 51 is connected to the connecting seat 56, and the connecting seat 56 is hinged to the L-shaped seat 55, the maintenance top cover 51 can be opened at this time, and the inside of the equipment can be inspected, repaired or cleaned through the maintenance port 57.

[0051] To ensure the normal operation of the bearing body 28 inside the bearing housing 35, it is necessary to cool and lubricate it. Cooling water enters from the cooling water inlet 6 at the bottom of the bearing housing 35, circulates inside the bearing housing 35, carries away the heat generated by the operation of the bearing body 28, and then flows out from the cooling water outlet 29 at the top. The PTFE packing 30 inside the heating housing 25 located on the surface of the heating spindle 18 plays a sealing role, preventing material and hot gas leakage, while reducing friction between the heating spindle 18 and the equipment, and extending the service life of the equipment.

[0052] Although embodiments of the present invention have been shown and described, it will be understood by those skilled in the art that various changes, modifications, substitutions and alterations can be made to these embodiments without departing from the principles and spirit of the present invention, the scope of which is defined by the appended claims and their equivalents.

Claims

1. A paddle dryer, characterized by, include: L-shaped bracket (21), with a heating lower box (25) provided on one side of the top of the L-shaped bracket (21), a heating upper box (10) provided on the top of the heating lower box (25), and a discharge port (24) connected to the bottom of the heating lower box (25). A heating spindle (18) is installed inside the heating lower housing (25). A heating plate (16) is provided on one side of the surface of the heating spindle (18). There are three sets of heating plates (16). A scraper (17) is provided at the bottom of one set of heating plates (16). The scraper (17) contacts the inner wall of the heating lower housing (25). Bearing seat (35), the bearing seat (35) is located on one side of the heating lower box (25), and the heating spindle (18) passes through the bearing seat (35). The bearing body (28) is sleeved inside the bearing seat (35) on the surface of the heating spindle (18). The top of the upper heating chamber (10) is provided with a heating mechanism. The heating mechanism is configured with a fresh air preheater (33) and a heating tube (9) to heat the lower heating chamber (25) and the interior of the upper heating chamber (10) to remove moisture.

2. A paddle dryer according to claim 1, characterised in that The heating mechanism includes a channel pipe (32) connected to the top of the upper heating chamber (10), a fresh air preheater (33) connected inside the channel pipe (32), a heating pipe (9) connected to the inner top wall of the upper heating chamber (10), a steam pipe (19) connected to the side of the lower heating chamber (25), and an inlet (22) opened on one side of the steam pipe (19).

3. A paddle dryer according to claim 1, wherein The upper heating chamber (10) is internally connected to a metal hose (26), and the metal hose (26) penetrates the upper heating chamber (10). The surface of the metal hose (26) is connected to a rotary joint (27) on one side of the bearing seat (35). The metal hose (26) is connected to the inlet (22).

4. A paddle dryer according to claim 1, wherein The bottom of the heating lower box (25) is connected to a steam condensate pipe (20), the steam condensate pipe (20) is connected to a rotary joint (27), and the surface of the steam condensate pipe (20) is connected to a condensate outlet (23).

5. A paddle dryer according to claim 1, characterized in that, The top of the bearing housing (35) is connected to a cooling water outlet (29), the bottom of the bearing housing (35) is connected to a cooling water inlet (6), the interior of the heating lower housing (25) is connected to a PTFE packing (30) on the surface of the heating spindle (18), and a drive mechanism is provided on one side of the top of the L-shaped bracket (21).

6. A paddle dryer according to claim 5, characterized in that, The drive mechanism includes a motor (11) connected to the top of an L-shaped bracket (21), a coupling (12) connected to the output end of the motor (11), a reducer (13) connected to one side of the coupling (12), a gear A (14) connected to one side of the reducer (13), a gear B (15) meshing with the surface of the gear A (14), a heating spindle (18) penetrating the lower heating housing (25), and the gear B (15) connected to the surface of the heating spindle (18).

7. A paddle dryer according to claim 1, characterized in that, The top side of the heating upper box (10) is connected to a feeding port (8), and an observation port (31) is opened on the surface of the heating upper box (10).

8. A paddle dryer according to claim 1, characterized in that, The top of the heating upper box (10) is connected to a vent (7). A cyclone separator (4) is connected to the top of the heating upper box (10) on one side of the vent (7). A duct (3) is connected to the top of the cyclone separator (4). A blower (2) is connected to one end of the blower (3). An exhaust pipe (1) is connected to the top of the blower (2). A guide cover (34) is connected to the top of the exhaust pipe (1).

9. A paddle dryer according to claim 1, characterized in that, The top of the heating upper box (10) is provided with a maintenance mechanism (5). The maintenance top cover (51) is released by the fixing rod (52) of the maintenance mechanism (5) so that the maintenance top cover (51) can be opened.

10. A paddle dryer according to claim 9, characterized in that, The maintenance mechanism (5) includes a maintenance port (57) connected to the top of the heating upper box (10). An L-shaped seat (55) is connected to one side of the maintenance port (57). A connecting seat (56) is hinged to the surface of the L-shaped seat (55). The maintenance top cover (51) is connected to one side of the connecting seat (56). A positioning seat (53) is connected to one side of the maintenance port (57). A fixing rod (52) is hinged to the surface of the positioning seat (53). A fixing block (54) is connected to the other side of the maintenance top cover (51), and the fixing rod (52) is fixed inside the fixing block (54).

Images