Energy-saving rake dryer

Abstract

The utility model discloses an energy-saving rake dryer, which particularly relates to the technical field of dryers, and comprises a dryer shell, a fixing frame arranged on the outer side of the dryer shell, a feeding cylinder arranged on the top of the dryer shell, a discharging cylinder arranged at the bottom of the dryer shell, a jacket arranged on the inner wall of the dryer shell, a conveying mechanism arranged inside the feeding cylinder, and a discharging cylinder arranged at the bottom of the dryer shell. A stirring mechanism is arranged on one side of the drying machine shell and comprises a first motor arranged on one side of the drying machine shell, a rotating rod is arranged at the output end of the first motor, and one end of the rotating rod extends into the drying machine shell. According to the utility model, materials in the drying machine shell can be uniformly stirred, and the resistance can be reduced when the materials on the inner wall of the drying machine shell are scraped, so that the materials adhered to the inner side wall of the drying barrel can be scraped more cleanly, the energy consumption is reduced, and the energy-saving property of the device is improved.

Description

Technical Field

[0001] This utility model relates to the field of dryer technology, and more specifically, to an energy-saving rake dryer. Background Technology

[0002] The rake dryer is an enhanced and improved design based on the technology of traditional vacuum rake dryers in China, specifically for various slurry, paste, granular, powder, and fibrous materials. It is particularly suitable for drying heat-sensitive materials, materials that are easily oxidized at high temperatures, materials that are prone to caking during drying, and materials for which the steam discharged during drying needs to be recovered. Since the processing of materials requires a large amount of energy, an energy-saving rake dryer is required when using it.

[0003] A search revealed that Chinese patent CN208398553U discloses a vacuum rake dryer. This mechanism uses a feed pipe to feed into two drying chambers, and the rotating shaft drives the stirring rake to rotate. Heat transfer oil is introduced into each of the two drying chambers separately, and drying operations are carried out simultaneously. The drying efficiency is high. The vacuum rake dryer has high drying efficiency when the two drying chambers are operated simultaneously.

[0004] However, the above-mentioned device will have the following problems during use: the structure uses a stirring rake to stir the material inside the drying tank. When the material inside the drying tank is processed, it is not stirred evenly enough, and the material is easy to adhere to the inner wall of the tank, making it difficult to clean the material on the inner wall, thus affecting the processing effect of the device on the material. Utility Model Content

[0005] In order to overcome the above-mentioned defects of the prior art, this utility model provides an energy-saving rake dryer to solve the problems mentioned in the background art.

[0006] To achieve the above objectives, this utility model provides the following technical solution:

[0007] An energy-saving rake dryer includes a dryer housing, a fixed frame fixed to the outer side of the dryer housing, a feed cylinder fixed to the top of the dryer housing, a discharge cylinder fixed to the bottom of the dryer housing, a jacket on the inner wall of the dryer housing, a conveying mechanism inside the feed cylinder, and a stirring mechanism on one side of the dryer housing. The stirring mechanism includes a first motor fixedly mounted on one side of the dryer housing, a rotating rod coaxially mounted on the output end of the first motor, one end of the rotating rod extending into the interior of the dryer housing, and multiple stirring blades fixed to the outer side of the rotating rod. The stirring blades are arranged in a crisscross pattern and are fan-shaped. Multiple rotating plates are fixed on both sides of each stirring blade, and the rotating plates are semi-circular in shape. A fixed plate is provided on the top of each stirring blade, and the fixed plate has a U-shaped cross-section. A slot is provided on the top of the fixed plate, and a locking block is provided inside the slot. An arc-shaped scraper is provided on the top of the locking block. A bolt is provided on the surface of the fixed plate, and one end of the bolt extends into the interior of the locking block. By adopting the above technical solution, it is convenient to uniformly stir the internal materials and clean the materials adhering to the inner wall.

[0008] As a further description of the above technical solution: the material conveying mechanism includes placement plates disposed on both sides of the inner wall of the feeding cylinder. Each of the two placement plates is provided with multiple springs at its top, and each of the multiple springs is provided with an adjusting plate at one end. Both adjusting plates are rotatably connected to both sides of the inner wall of the feeding cylinder. A second motor is provided on one side of the feeding cylinder, and the output end of the second motor is provided with a rotating shaft. One end of the rotating shaft extends into the interior of the feeding cylinder, and multiple stirring rods are provided on the rotating shaft. By adopting the above technical solution, it is convenient to convey the incoming material and prevent the material from clogging inside the feeding cylinder.

[0009] As a further description of the above technical solution: a water inlet pipe is provided on one side of the feeding cylinder, and a hot water conveying pipe is provided on the other side of the feeding cylinder. One end of the hot water conveying pipe extends into the interior of the jacket. A water outlet pipe is provided on one side of the discharging cylinder, and a hot water conveying pipe is provided on the other side of the discharging cylinder. One end of the hot water conveying pipe extends into the interior of the jacket. By adopting the above technical solution, it is convenient to heat and dry the material inside.

[0010] The technical effects and advantages of this utility model are as follows:

[0011] 1. By setting up a stirring mechanism, compared with the existing technology, the first motor drives the rotating rod to rotate, and the rotating rod drives the fan-shaped stirring blades to stir the material. The staggered arrangement of the stirring blades can make the internal material more thoroughly stirred and the drying effect more uniform. The rotating plate set on the surface of the fan-shaped stirring blades can strengthen the stirring blades and reduce the possibility of the stirring blades breaking during stirring. Then, the arc-shaped scraper at the top of the fan-shaped stirring blades scrapes off the material adhering to the inner wall of the dryer shell, reducing material waste and playing a cleaning role. The arc-shaped scraper can reduce the resistance when scraping the material adhering to the inner wall of the dryer shell, thus making the material adhering to the inner wall of the drying cylinder cleaner and reducing energy consumption. The arc-shaped scraper can also be disassembled and cleaned, thereby improving the practicality of the device.

[0012] 2. By setting up a conveying mechanism, compared with the existing technology, the material enters the dryer shell through the feeding cylinder. The material first enters the bottom of the feeding cylinder between two adjusting plates. The spring at the top of the plate drives the adjusting plate to move downward, allowing the material to pass between the two adjusting plates for processing. Then, the second motor drives the rotating shaft to rotate, and the rotating shaft drives the stirring rod to stir and convey the material inside the feeding cylinder, preventing the material from clogging inside the feeding cylinder. This achieves uniform feeding of the material and avoids excessive material accumulation in the center of the dryer shell, which would affect the drying effect of the device. Attached Figure Description

[0013] Figure 1 This is a schematic diagram of the overall structure of this utility model.

[0014] Figure 2 This is a schematic diagram of the stirring structure of this utility model.

[0015] Figure 3 This is a schematic diagram of the state structure of this utility model.

[0016] Figure 4 This is a schematic diagram of the material conveying structure of this utility model.

[0017] Figure 5 This is a side view of the present invention.

[0018] The attached diagram is labeled as follows: 1. Dryer housing; 2. Fixing frame; 3. Feed cylinder; 4. Discharge cylinder; 5. First motor; 6. Rotating rod; 7. Stirring blade; 8. Rotating plate; 9. Fixing plate; 10. Clamping block; 11. Arc-shaped scraper; 12. Bolt; 13. Adjusting plate; 14. Second motor; 15. Stirring rod; 16. Water inlet pipe; 17. Hot water delivery pipe one; 18. Water outlet pipe; 19. Hot water delivery pipe two; 20. Spring. Detailed Implementation

[0019] The technical solutions of this 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 this utility model, and not all embodiments. Based on the embodiments of this utility model, all other embodiments obtained by those skilled in the art without creative effort are within the protection scope of this utility model.

[0020] The embodiments of this application disclose the following: Figure 1-4 The energy-saving rake dryer shown specifically includes a dryer housing 1, a fixing frame 2 fixedly mounted on the outer side of the dryer housing 1, a feed cylinder 3 fixedly mounted on the top of the dryer housing 1, a discharge cylinder 4 fixedly mounted on the bottom of the dryer housing 1, a jacket on the inner wall of the dryer housing 1, a conveying mechanism inside the feed cylinder 3, and a stirring mechanism on one side of the dryer housing 1. The stirring mechanism includes a first motor 5 fixedly mounted on one side of the dryer housing 1, a rotating rod 6 coaxially mounted on the output end of the first motor 5, and one end of the rotating rod 6 extending into the inner part of the dryer housing 1. The rotating rod 6 has multiple stirring blades 7 fixed on its outer side, which are arranged in a crisscross pattern. The stirring blades 7 are fan-shaped. Multiple rotating plates 8 are fixed on both sides of the stirring blades 7. The rotating plates 8 are semi-circular arc-shaped. The top of the stirring blades 7 has a fixing plate 9 with a U-shaped cross-section. The top of the fixing plate 9 has a slot, and the slot has a locking block 10 inside. The top of the locking block 10 has an arc-shaped scraper 11. The surface of the fixing plate 9 has a bolt 12, one end of which extends into the interior of the locking block 10.

[0021] The first motor 5 drives the rotating rod 6 to rotate, and the rotating rod 6 drives the fan-shaped stirring blades 7 to stir the material. The staggered arrangement of the stirring blades 7 can make the internal material more thoroughly stirred and the drying effect more uniform.

[0022] The rotating plate 8 on the surface of the fan-shaped stirring blade 7 can strengthen the stirring blade 7 and reduce the possibility of the stirring blade 7 breaking during stirring. Then, the arc-shaped scraper 11 at the top of the fan-shaped stirring blade 7 scrapes off the material adhering to the inner wall of the dryer shell 1, reducing material waste and playing a cleaning role. The arc-shaped scraper 11 can reduce the resistance when scraping the material adhering to the inner wall of the dryer shell 1, so that the material adhering to the inner wall of the drying cylinder is scraped more cleanly and energy consumption is reduced. The arc-shaped scraper 11 can also be disassembled and cleaned. First, remove the bolt 12 so that the bolt 12 is no longer connected and fixed between the fixing plate 9 and the arc-shaped scraper 11. Remove the locking block 10 at the bottom of the arc-shaped scraper 11 from the slot, and the arc-shaped scraper 11 can be removed from the fixing plate 9 for disassembly and cleaning.

[0023] Reference Figure 1 and Figure 4 As shown, the feeding mechanism includes placement plates on both sides of the inner wall of the feeding cylinder 3. Multiple springs 20 are mounted on the top of each placement plate, and an adjusting plate 13 is mounted on one end of each spring 20. Both adjusting plates 13 are rotatably connected to both sides of the inner wall of the feeding cylinder 3. A second motor 14 is mounted on one side of the feeding cylinder 3. A rotating shaft is mounted on the output end of the second motor 14, with one end extending into the interior of the feeding cylinder 3. Multiple stirring rods 15 are mounted on the rotating shaft. Material enters the dryer housing 1 through the feeding cylinder 3. The material first passes between the two adjusting plates 13 and enters the bottom of the feeding cylinder 3. When a large amount of material presses against the adjusting plate 13, the springs 20 on the top of the placement plates drive the adjusting plate 13 to move downwards, allowing the material to pass between the two adjusting plates 13 for processing. The second motor 14 then drives the rotating shaft to rotate, which in turn drives the stirring rods 15 to stir and convey the material inside the feeding cylinder 3, preventing blockage and achieving uniform feeding.

[0024] Reference Figure 1 and Figure 5 As shown, a water inlet pipe 16 is provided on one side of the feed cylinder 3, and a hot water conveying pipe 17 is provided on the other side of the feed cylinder 3. One end of the hot water conveying pipe 17 extends into the interior of the jacket. A water outlet pipe 18 is provided on one side of the discharge cylinder 4, and a hot water conveying pipe 29 is provided on the other side of the discharge cylinder 4. One end of the hot water conveying pipe 29 extends into the interior of the jacket. When the material enters the dryer shell 1, hot water is conveyed to the interior of the jacket through the hot water conveying pipe. After the hot water cools, it is discharged through the hot water conveying pipe 29, which can heat the dryer shell 1 and achieve non-contact heating of the material. The material can be heated and dried. An external water source can be connected to the water inlet pipe 16 so that the incoming water can flush the interior of the dryer shell 1, and the flushed wastewater can be discharged from the water outlet pipe 18. The dried material is discharged through the discharge cylinder 4.

[0025] The working principle of this utility model is as follows: First, the material enters the dryer shell 1 through the feed cylinder 3. The material first enters the bottom of the feed cylinder 3 between the two adjusting plates 13. When a large amount of material squeezes the adjusting plate 13, the spring 20 at the top of the plate drives the adjusting plate 13 to move downward, so that the material can enter the processing between the two adjusting plates 13. Then, the second motor 14 drives the rotating shaft to rotate, and the rotating shaft drives the stirring rod 15 to stir and transport the material inside the feed cylinder 3, preventing the material from being blocked inside the feed cylinder 3. This achieves uniform feeding of the material and avoids a large amount of material accumulating in the center of the dryer shell 1, which would affect the drying effect of the device.

[0026] When the material enters the dryer shell 1, hot water is transported to the jacket through the hot water delivery pipe. After the hot water cools, it is discharged through the hot water delivery pipe 19, which can heat the dryer shell 1 and achieve non-contact heating of the material. Then, the first motor 5 drives the rotating rod 6 to rotate, and the rotating rod 6 drives the fan-shaped stirring blades 7 to stir the material. The staggered arrangement of the stirring blades 7 can make the internal material more thoroughly stirred and the drying effect more uniform.

[0027] The rotating plate 8 on the surface of the fan-shaped stirring blade 7 strengthens the stirring blade 7 and reduces the possibility of breakage during stirring. Then, the arc-shaped scraper 11 at the top of the fan-shaped stirring blade 7 scrapes off the material adhering to the inner wall of the dryer shell 1, reducing material waste and playing a cleaning role. The arc-shaped scraper 11 reduces the resistance when scraping the material adhering to the inner wall of the dryer shell 1, thus making the material adhering to the inner wall of the drying cylinder cleaner and reducing energy consumption. It can also reduce the resistance when scraping the material adhering to the inner wall of the dryer shell 1. 11. Disassemble and clean the machine. First, remove the bolt 12 so that it is no longer connected and fixed between the fixing plate 9 and the arc scraper 11. Remove the locking block 10 at the bottom of the arc scraper 11 from the slot. Then, the arc scraper 11 can be removed from the fixing plate 9 for disassembly and cleaning. At the same time, connect the external water source to the water inlet pipe 16 so that the incoming water can rinse the inside of the dryer shell 1. The rinsed wastewater can be discharged from the water outlet pipe 18. The dried material is discharged through the discharge cylinder 4.

[0028] The above are all preferred embodiments of this application, and are not intended to limit the scope of protection of this application. Therefore, all equivalent changes made in accordance with the structure, shape and principle of this application should be covered within the scope of protection of this application.

Claims

1. An energy-saving rake dryer, comprising a dryer housing (1), characterized in that: A fixing frame (2) is fixedly provided on the outside of the dryer housing (1), a feed cylinder (3) is fixedly provided on the top of the dryer housing (1), a discharge cylinder (4) is fixedly provided on the bottom of the dryer housing (1), a jacket is provided on the inner wall of the dryer housing (1), a feeding mechanism is provided inside the feed cylinder (3), and a stirring mechanism is provided on one side of the dryer housing (1); The stirring mechanism comprises a first motor (5) fixedly arranged on one side of a dryer housing (1); a rotating rod (6) is coaxially mounted on the output end of the first motor (5); one end of the rotating rod (6) extends into the interior of the dryer housing (1); a plurality of stirring blades (7) are fixedly arranged on the outer side of the rotating rod (6); the plurality of stirring blades (7) are arranged crosswise; the stirring blades (7) are arranged in a fan-shaped shape; a plurality of rotating plates (8) are fixedly arranged on both sides of the stirring blade (7); the shape of the rotating plates (8) is arranged in a semicircular arc shape; a fixing plate (9) is provided on the top of the stirring blade (7); the cross-sectional shape of the fixing plate (9) is arranged in a U-shaped shape; a slot is provided on the top of the fixing plate (9); a block (10) is provided inside the slot; an arc-shaped scraper (11) is provided on the top of the block (10); a bolt (12) is provided on the surface of the fixing plate (9); one end of the bolt (12) extends into the interior of the block (10).

2. The energy-saving rake dryer according to claim 1, characterized in that: The feeding mechanism comprises placement plates arranged on both sides of the inner wall of the feeding barrel (3), a plurality of springs (20) are arranged on the top of the two placement plates, an adjustment plate (13) is arranged at one end of the plurality of springs (20), and the two adjustment plates (13) are rotatably connected to both sides of the inner wall of the feeding barrel (3).

3. The energy-saving rake dryer according to claim 1, characterized in that: A second motor (14) is provided on one side of the feed barrel (3), and a rotating shaft is provided at the output end of the second motor (14), one end of the rotating shaft extends into the interior of the feed barrel (3), and a plurality of stirring rods (15) are provided on the rotating shaft.

4. The energy-saving rake dryer according to claim 1, characterized in that: A water inlet pipe (16) is provided on one side of the feed barrel (3), and a hot water delivery pipe (17) is provided on the other side of the feed barrel (3), with one end of the hot water delivery pipe (17) extending to the interior of the jacket.

5. The energy-saving rake dryer according to claim 1, characterized in that: A water outlet pipe (18) is provided on one side of the discharge barrel (4), and a second hot water delivery pipe (19) is provided on the other side of the discharge barrel (4), with one end of the second hot water delivery pipe (19) extending to the interior of the jacket.

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