Double-cone rotary vacuum drier

Abstract

The utility model relates to drying machine technical field discloses double cone rotary vacuum drying machine, including jar body, the one side bolt connection of jar body has first sleeve, the other side bolt connection of jar body has second sleeve, the first sleeve is fixedly installed in vacuum pipe, and one end of vacuum pipe penetrates jar body and is fixedly installed with loudspeaker cover, and the loudspeaker cover is located in jar body, and the other end of vacuum pipe is fixedly installed with the vacuum equipment for drawing the air in jar body, and the filter pipe is fixedly installed in vacuum pipe, and the filter pipe and vacuum pipe are interpenetration, and the filter pipe is located between jar body and vacuum equipment, and the filter assembly is slidably installed in filter pipe, and the filter assembly includes the filter cover of sliding installation in filter pipe, first sealing block is fixedly installed in the top of filter cover, and first limiting block is fixedly installed in the top of first sealing block, the utility model discloses a filter assembly, solves the problem that the filter screen installed at the air exhaust head of vacuum exhaust pipe is blocked and not completely filtered.

Description

Technical Field

[0001] This utility model relates to the field of dryer technology, specifically a double cone rotary vacuum dryer. Background Technology

[0002] The double-cone rotary vacuum dryer is a special type of dryer. Its characteristic is that the container for placing raw materials is conical at both ends, and the container is in a rotating state during the heating and drying process. This rotation turns the raw materials inside the container. Heating is achieved by introducing steam or hot water into the jacket. The heat comes into contact with the wet material through the inner wall of the tank. The water vapor evaporated after the wet material absorbs heat is extracted through the vacuum equipment and vacuum exhaust pipe. Because the tank is in a vacuum state and the rotation of the tank causes the material to be constantly turned up and down and inside and out, the drying speed of the material is accelerated, the drying efficiency is improved, and the purpose of uniform drying is achieved.

[0003] The existing double cone rotary vacuum dryer has the following drawbacks: during the process of drawing away the wet material in the tank through the vacuum exhaust pipe to absorb heat and evaporate water vapor, the material inside the tank or the fine powder generated by the material will clog the filter screen of the vacuum exhaust pipe, reducing the vacuum level. Furthermore, if the material dust penetrates the filter screen installed on the suction head and enters the vacuum equipment, it will contaminate the lubricating oil in the pump, wear the pump cavity components, and cause the vacuum level of the vacuum equipment to decrease and the lifespan to be shortened.

[0004] Therefore, a double-cone rotary vacuum dryer is proposed to solve the problem of clogging and incomplete filtration of the filter screen installed at the vacuum exhaust pipe suction head. Utility Model Content

[0005] The purpose of this invention is to provide a double-cone rotary vacuum dryer to address the problems mentioned in the background art, in order to solve the problems of existing devices.

[0006] To achieve the above objectives, this utility model provides the following technical solution: a double cone rotary vacuum dryer, comprising a tank, characterized in that: a first sleeve is bolted to one side of the tank, and a second sleeve is bolted to the other side of the tank; a vacuum tube is fixedly installed inside the first sleeve; one end of the vacuum tube penetrates the tank and is fixedly installed with a horn cover, the horn cover being located inside the tank; a vacuum device for extracting air from the tank is fixedly installed at the other end of the vacuum tube; a filter tube is fixedly installed inside the vacuum tube, and the filter tube communicates with the vacuum tube; the filter tube is located between the tank and the vacuum device; and a filter assembly is slidably installed inside the filter tube.

[0007] The filter assembly includes a filter cover that is slidably installed inside a filter tube, a first sealing block that is fixedly installed on the top of the filter cover, a first limiting block that is fixedly installed on the top of the first sealing block, a second sealing block that is fixedly installed on the bottom of the filter cover, and a second limiting block that is fixedly installed on the bottom of the second sealing block.

[0008] A rotating rod is fixedly installed on the inner wall of the tank away from the horn cover. A cleaning rod is fixedly installed at the end of the rotating rod away from the tank. Several sets of cleaning blocks are fixedly installed at the end of the cleaning rod away from the rotating rod. The sets of cleaning blocks are all located inside the horn cover and are distributed in a spiral shape. The cleaning blocks are used to clean out the dust inside the horn cover.

[0009] Preferably, a first fixing seat is fixedly installed on the first sleeve, and a second fixing seat is fixedly installed on the second sleeve. A frame for fixing the tank is fixedly installed at the bottom of the first fixing seat and the second fixing seat. A power chamber is opened on one side of the frame, and a heating box is fixedly installed on the other side of the frame. The tank is located between the power chamber and the heating box.

[0010] Preferably, a motor is bolted to the power chamber, a second pulley is bolted to the motor output shaft, a transmission belt is driven onto the second pulley, a first pulley is fixedly mounted on the first sleeve, the first pulley is located above the second pulley, and the end of the transmission belt away from the second pulley is driven onto the first pulley.

[0011] Preferably, a cold water tank is fixedly installed at the bottom of the heating box, and a jacket cavity is opened inside the outer shell of the tank. A first water pipe and a second water pipe are fixedly installed inside the second sleeve. One end of the first water pipe is installed through the jacket cavity, and the other end of the first water pipe is fixedly installed inside the cold water tank. One end of the second water pipe is installed through the jacket cavity, and the other end of the second water pipe is fixedly installed inside the heating box.

[0012] Preferably, several sets of support rods are fixedly installed on the rotating rod, and the support rods are used to break up the material.

[0013] Preferably, the tank body has a feed inlet at the top, and a first cover adapted to the discharge outlet is bolted to the top of the feed inlet. The tank body has a discharge outlet at the bottom, and a second cover adapted to the discharge outlet is bolted to the bottom of the discharge outlet.

[0014] Preferably, a fixing sleeve is fixedly installed on the vacuum tube, the fixing sleeve is located inside the tank, and the side of the fixing sleeve is fixedly installed on the inner wall of the tank.

[0015] Preferably, a handle for pulling the filter assembly is fixedly installed on the top of the first limiting block.

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

[0017] 1. The rotating rod, cleaning rod, and cleaning blocks inside the tank can rotate with the tank body. The spirally arranged cleaning blocks can continuously push the material dust on the filter screen inside the horn cover into the tank body, avoiding the material dust from clogging the filter screen of the suction head. The diameter of the end of the horn cover away from the vacuum tube is larger than the diameter of the end of the horn cover closer to the vacuum tube. Under the same vacuum flow rate, the airflow velocity in the area of ​​the horn cover away from the vacuum tube is significantly reduced, which reduces the amount of material dust entering from the source. The support rod on the rotating rod can break up the clumps of material when the tank body rotates, speeding up the material drying time and improving work efficiency.

[0018] 2. Through secondary filtration of the filter assembly, material dust that penetrates the suction head can be blocked from entering the vacuum equipment, preventing it from contaminating the lubricating oil in the pump and wearing the pump cavity components, which would lead to a decrease in the vacuum level of the vacuum equipment and improve the service life of the equipment. In addition, the sliding design of the filter assembly in the filter tube means that the vacuum tube does not need to be disassembled when cleaning the filter cover, reducing the difficulty of maintenance. Attached Figure Description

[0019] Figure 1 This is a schematic diagram of the overall structure of this utility model;

[0020] Figure 2 This is a schematic diagram of the filter assembly structure of this utility model;

[0021] Figure 3 This is a schematic diagram of the filter assembly of this utility model during cleaning;

[0022] Figure 4 This is a schematic diagram of the internal structure of the tank of this utility model;

[0023] Figure 5 This is a schematic diagram of the internal structure of the tank of this utility model.

[0024] In the diagram: 11. Frame; 12. Tank; 13. First cover; 14. Second cover; 15. Heating box; 16. Cold water tank; 17. Feed inlet; 18. Discharge outlet; 19. Power chamber; 110. Jacket cavity; 21. First sleeve; 22. Second sleeve; 23. First fixed seat; 24. Second fixed seat; 25. First pulley; 26. Second pulley; 27. Transmission belt; 28. Motor; 29. ​​Vacuum tube; 210. Vacuum equipment; 211. First water pipe; 212. Second water pipe; 3. Filter assembly; 31. First limiting block; 32. Filter cover; 33. First sealing block; 34. Second limiting block; 35. Handle; 36. Filter tube; 37. Second sealing block; 41. Rotating rod; 42. Cleaning rod; 43. Fixed sleeve; 44. Horn cover; 45. Cleaning block; 46. Support rod. Detailed Implementation

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

[0026] Example

[0027] Please see Figure 1 - Figure 5 The double cone rotary vacuum dryer shown in the figure includes a tank 12. A first sleeve 21 is bolted to one side of the tank 12, and a second sleeve 22 is bolted to the other side of the tank 12. A vacuum tube 29 is fixedly installed inside the first sleeve 21. One end of the vacuum tube 29 passes through the tank 12 and is fixedly installed with a horn cover 44. The horn cover 44 is located inside the tank 12. The diameter of the end of the horn cover 44 away from the vacuum tube 29 is larger than the diameter of the end of the horn cover 44 close to the vacuum tube 29. Under the same vacuum flow rate, the airflow velocity in the area of ​​the horn cover 44 away from the vacuum tube 29 is greatly reduced, thus avoiding and reducing the amount of material dust entering from the source.

[0028] A fixing sleeve 43 is fixedly fitted on the outer wall of the vacuum tube 29. The fixing sleeve 43 is located inside the tank body 12, and its end face is fixedly installed on the inner wall of the tank body 12. A vacuum device 210 is fixedly installed at the other end of the vacuum tube 29. In this application, the vacuum device 210 is preferably a vacuum pump. A filter tube 36 is fixedly installed inside the vacuum tube 29, and the filter tube 36 communicates with the vacuum tube 29. The filter tube 36 is located between the tank body 12 and the vacuum device 210. A filter assembly 3 is slidably installed inside the filter tube 36. The filter assembly 3 includes a filter cover 32 slidably installed inside the filter tube 36. A first sealing block 33 is fixedly installed on the top of the filter cover 32. The filter cover 32 is fixedly installed with a first limiting block 31, a second sealing block 37 is fixedly installed at the bottom of the filter cover 32, a second limiting block 34 is fixedly installed at the bottom of the second sealing block 37, and a handle 35 for pulling the filter assembly 3 is fixedly installed at the top of the first limiting block 31. Through the secondary filtration of the filter assembly 3, the material dust that penetrates the suction head can be blocked from entering the vacuum equipment 210, preventing it from contaminating the lubricating oil in the pump and wearing the pump cavity components, which would cause the vacuum degree of the vacuum equipment 210 to drop, thus improving the service life of the equipment. Moreover, due to the sliding design of the filter assembly 3 in the filter tube 36, the vacuum tube 29 does not need to be disassembled when cleaning the filter cover 32, reducing the difficulty of maintenance.

[0029] A first fixing seat 23 is fixedly installed on the first sleeve 21, and a second fixing seat 24 is fixedly installed on the second sleeve 22. A frame 11 for fixing the tank body 12 is fixedly installed at the bottom of the first fixing seat 23 and the second fixing seat 24. A power chamber 19 is opened on one side of the frame 11, and a heating box 15 is fixedly installed on the other side of the frame 11. The tank body 12 is located between the power chamber 19 and the heating box 15.

[0030] A rotating rod 41 is fixedly installed on the inner wall of the tank 12 away from the horn cover 44. A cleaning rod 42 is fixedly installed at the end of the rotating rod 41 away from the tank 12. Several sets of cleaning blocks 45 are fixedly installed at the end of the cleaning rod 42 away from the rotating rod 41. The sets of cleaning blocks 45 are all located inside the horn cover 44 and are arranged in a spiral shape. The rotating rod 41 drives the cleaning rod 42 and the spirally arranged cleaning blocks 45 to rotate inside the horn cover 44. The spiral structure uses centrifugal force and pushing force to sweep the dust attached to the inner wall of the horn cover 44 and the filter inlet inside the horn cover 44 back to the tank 12, so as to avoid dust accumulation and blockage of the filter inside the horn cover 44. Several sets of support rods 46 are fixedly installed on the rotating rod 41. When the tank 12 rotates, the support rods 46 fixedly installed on the rotating rod 41 can break up the clumps of material, speed up the drying time of the material, and improve work efficiency.

[0031] A motor 28 is bolted into the power chamber 19. A second pulley 26 is bolted onto the output shaft of the motor 28. A transmission belt 27 is driven onto the second pulley 26. A first pulley 25 is fixedly mounted on the first sleeve 21. The first pulley 25 is located above the second pulley 26. The end of the transmission belt 27 away from the second pulley 26 is driven onto the first pulley 25. The motor 28 drives the tank 12 to rotate through the transmission belt 27, thereby turning the material over in the tank and achieving uniform and rapid drying of the material.

[0032] A cold water tank 16 is fixedly installed at the bottom of the heating box 15. A jacketed cavity 110 is opened inside the outer shell of the tank body 12. A first water pipe 211 and a second water pipe 212 are fixedly installed inside the second sleeve 22. One end of the first water pipe 211 is installed through the jacketed cavity 110, and the other end is fixedly installed inside the cold water tank 16. One end of the second water pipe 212 is installed through the jacketed cavity 110, and the other end is fixedly installed inside the heating box 15. A water pump installed inside the heating box 15 adds hot water to the jacketed cavity 110 through the second water pipe 212. Heat is transferred to the wet material inside the tank body 12 through the inner wall of the tank body 12, accelerating the evaporation of moisture. After circulation, the hot water enters the cold water tank 16. A heating rod is installed inside the cold water tank 16 to heat the cooled hot water after circulation, so as to achieve continuous heating of the material inside the tank body 12.

[0033] The tank body 12 has an inlet 17 at the top, and a first cover 13 adapted to the outlet 18 is bolted to the top of the inlet 17. The tank body 12 has an outlet 18 at the bottom, and a second cover 14 adapted to the outlet 18 is bolted to the bottom of the outlet 18 to ensure the sealing performance of the tank body 12 and prevent the loss of vacuum.

[0034] Working principle:

[0035] When performing the drying operation, first open the first cover 13, put the wet material into the tank 12 through the feed port 17, close the first cover 13 and tighten the bolts to seal it. According to the drying requirements of the material, hot water in the heating box 15 is introduced into the jacket cavity 110 through the second water pipe 212. The hot water passes through the inner wall of the tank 12 and heats the wet material in the tank 12. The circulated and cooled hot water is introduced into the cold water tank 16 through the first water pipe 211. The heating rod installed in the cold water tank 16 raises the temperature and realizes circulation, continuously heating the inner wall of the tank 12.

[0036] Next, the motor 28 installed in the power chamber 19 is started. The motor 28 drives the second pulley 26 to rotate through the output shaft. The second pulley 26 drives the first pulley 25 and the first sleeve 21 to rotate through the transmission belt 27, thereby driving the tank body 12 to rotate. During the rotation of the tank body 12, the internal material is constantly turned up and down and inside and out under the action of the conical structure and gravity. At the same time, the rotating rod 41 rotates synchronously with the tank body 12. The support rod 46 on the rotating rod 41 breaks up the clumps of material, so that the material is evenly in contact with the inner wall of the tank body 12, ensuring uniform heat transfer and improving drying efficiency and drying uniformity.

[0037] The vacuum equipment 210 is started simultaneously. The humid air and evaporated water vapor in the tank 12 are drawn into the vacuum tube 29 through the horn cover 44. The flared design of the horn cover 44 significantly reduces the airflow velocity in the flared area under the same vacuum flow rate, thus reducing the amount of material dust entering from the source. At the same time, the rotating rod 41 drives the cleaning rod 42 and the spirally arranged cleaning block 45 to rotate inside the horn cover 44. The spiral structure uses centrifugal force and pushing force to sweep the dust attached to the inner wall of the horn cover 44 and the filter inlet of the horn cover 44 back to the tank 12, preventing dust accumulation and clogging of the filter inside the horn cover 44.

[0038] After the humid air extracted by the vacuum equipment 210 enters the vacuum tube 29, it passes through the filter cover 32 in the filter assembly 3. The filter cover 32 intercepts fine dust particles that are not blocked by the filter screen set at the horn cover 44, achieving secondary filtration and preventing dust from entering the vacuum equipment 210 to contaminate the lubricating oil and wear the pump cavity components, thus ensuring the stability of the vacuum degree of the vacuum equipment 210 and the service life of the vacuum equipment. The fixing sleeve 43 on the vacuum tube 29 is used to fix the vacuum tube 29 and ensure the sealing of the connection between the vacuum tube 29 and the tank 12.

[0039] When the filter cover 32 needs to be cleaned, turn off the vacuum equipment 210, and pull the handle 35 to slide the filter cover 32 upward along the filter tube 36 until the second sealing block 37 blocks the bottom opening of the filter tube 36 to prevent air leakage from the tank 12 from affecting the vacuum level. At this time, the filter cover 32 can be cleaned. After cleaning, push the handle 35 to reset the filter cover 32. The first sealing block 33 and the second sealing block 37 respectively seal the upper and lower ends of the filter tube 36, and the filter tube 36 is reconnected to the vacuum tube 29, thus restoring the filtration function. After the drying operation is completed, turn off the motor 28 and the vacuum equipment 210, open the second cover 14, and take out the dried material from the discharge port 18 to complete the entire drying process.

[0040] It should be noted that, in this document, relational terms such as "first" and "second" are used only to distinguish one entity or operation from another, and do not necessarily require or imply any such actual relationship or order between these entities or operations. Furthermore, the terms "comprising," "including," or any other variations thereof are intended to cover non-exclusive inclusion, such that a process, method, article, or apparatus that comprises a list of elements includes not only those elements but also other elements not expressly listed, or elements inherent to such a process, method, article, or apparatus.

[0041] 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 variations 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. Double-cone rotary vacuum dryer comprising a tank (12), characterized in that: A first sleeve (21) is bolted to one side of the tank (12), and a second sleeve (22) is bolted to the other side of the tank (12). A vacuum tube (29) is fixedly installed inside the first sleeve (21). One end of the vacuum tube (29) passes through the tank (12) and is fixedly installed with a horn cover (44). The horn cover (44) is located inside the tank (12). A vacuum device (210) for extracting air from the tank (12) is fixedly installed at the other end of the vacuum tube (29). A filter tube (36) is fixedly installed inside the vacuum tube (29), and the filter tube (36) communicates with the vacuum tube (29). The filter tube (36) is located between the tank (12) and the vacuum device (210). A filter assembly (3) is slidably installed inside the filter tube (36). The filter assembly (3) includes a filter cover (32) that is slidably installed inside the filter tube (36). A first sealing block (33) is fixedly installed on the top of the filter cover (32). A first limiting block (31) is fixedly installed on the top of the first sealing block (33). A second sealing block (37) is fixedly installed on the bottom of the filter cover (32). A second limiting block (34) is fixedly installed on the bottom of the second sealing block (37). A rotating rod (41) is fixedly installed on the inner wall of the tank (12) away from the horn cover (44). A cleaning rod (42) is fixedly installed at the end of the rotating rod (41) away from the tank (12). Several sets of cleaning blocks (45) are fixedly installed at the end of the cleaning rod (42) away from the rotating rod (41). The several sets of cleaning blocks (45) are all located inside the horn cover (44). The several sets of cleaning blocks (45) are distributed in a spiral shape. The cleaning blocks (45) are used to clean out the dust inside the horn cover (44).

2. Double-cone rotary vacuum drier according to claim 1, characterized in that: A first fixing seat (23) is fixedly installed on the first sleeve (21), and a second fixing seat (24) is fixedly installed on the second sleeve (22). A frame (11) for fixing the tank (12) is fixedly installed at the bottom of the first fixing seat (23) and the second fixing seat (24). A power chamber (19) is opened on one side of the frame (11), and a heating box (15) is fixedly installed on the other side of the frame (11). The tank (12) is located between the power chamber (19) and the heating box (15).

3. Double-cone rotary vacuum drier according to claim 2, characterized in that: A motor (28) is bolted into the power chamber (19). A second pulley (26) is bolted onto the output shaft of the motor (28). A transmission belt (27) is driven onto the second pulley (26). A first pulley (25) is fixedly mounted on the first sleeve (21). The first pulley (25) is located above the second pulley (26). The end of the transmission belt (27) away from the second pulley (26) is driven onto the first pulley (25).

4. The double-cone rotary vacuum dryer according to claim 2, characterized in that: A cold water tank (16) is fixedly installed at the bottom of the heating box (15). A jacket cavity (110) is opened inside the outer shell of the tank body (12). A first water pipe (211) and a second water pipe (212) are fixedly installed inside the second sleeve (22). One end of the first water pipe (211) is installed through the jacket cavity (110), and the other end of the first water pipe (211) is fixedly installed inside the cold water tank (16). One end of the second water pipe (212) is installed through the jacket cavity (110), and the other end of the second water pipe (212) is fixedly installed inside the heating box (15).

5. The double-cone rotary vacuum dryer according to claim 1, characterized in that: Several sets of support rods (46) are fixedly installed on the rotating rod (41), and the support rods (46) are used to break up materials.

6. The double-cone rotary vacuum dryer according to claim 1, characterized in that: The tank body (12) has an inlet (17) at the top, and a first cover (13) adapted to the outlet (18) is bolted to the top of the inlet (17). The tank body (12) has an outlet (18) at the bottom, and a second cover (14) adapted to the outlet (18) is bolted to the bottom of the outlet (18).

7. The double-cone rotary vacuum dryer according to claim 1, characterized in that: The vacuum tube (29) is fixedly fitted with a fixing sleeve (43) on its outer wall. The fixing sleeve (43) is located inside the tank body (12), and the end face of the fixing sleeve (43) is fixedly installed on the inner wall of the tank body (12).

8. The double-cone rotary vacuum dryer according to claim 1, characterized in that: The first limiting block (31) has a handle (35) fixedly installed on its top for pulling the filter assembly (3).

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