Degreasing cotton drying device for spunlace nonwoven fabric

Abstract

The application discloses a kind of defatted cotton drying devices for water-jet nonwoven fabric, it is related to defatted cotton drying technical field, the device includes dehydration cylinder and upper cylinder, dehydration cylinder is rotatably installed in upper cylinder inside, and the lower end of upper cylinder is fixed with flow guide part;Several drainage holes are opened in the bottom of the sidewall of dehydration cylinder and lower end, and drainage port is opened in the middle of flow guide part;The upper end of dehydration cylinder is rotatably installed with fixed ring, and the side of fixed ring and upper cylinder is fixed with feeding pipe, and the other side of fixed ring and upper cylinder is fixed with discharge pipe, and discharge pipe is connected with pumping end of pumping pump;Air pipe is discharged into upper cylinder by the hot air generated by dryer, and the air flow circulation formed by dehydration cylinder rotation and the diffusion of hot air itself enter the inside of dehydration cylinder through the drainage hole of dehydration cylinder;Partition is arranged between the upper ring and lower ring of the inner wall of upper cylinder, to form multiple relatively sealed areas, and hot air is evenly distributed in each independent area, to ensure that each part of material can be evenly dried, to improve drying quality.

Description

Technical Field

[0001] This invention relates to the field of degreased cotton drying technology, specifically a degreased cotton drying device for spunlace nonwoven fabric. Background Technology

[0002] Drying is one of the key processes in the processing of degreased cotton, and its effectiveness directly affects the quality and performance of the product.

[0003] First, traditional drying equipment often suffers from uneven heat distribution. Due to the lack of an effective airflow circulation and distribution mechanism, hot air is difficult to achieve a uniform distribution within the drying drum, resulting in uneven heating of the degreased cotton material during the drying process. This uneven heating not only prolongs the drying time and reduces drying efficiency, but may also lead to localized overheating or incomplete drying of the material, affecting the quality of the final product.

[0004] Secondly, existing dehydration methods mostly rely on gravity settling or simple mechanical compression, which are ineffective when processing degreased cotton with high moisture content. Incomplete dehydration not only increases the burden on subsequent drying processes but may also lead to excessive moisture content in the product, affecting its stability and lifespan.

[0005] Based on this, a drying device for degreased cotton for spunlace nonwoven fabrics is now provided, which can eliminate the drawbacks of existing devices. Summary of the Invention

[0006] The purpose of this invention is to provide a drying device for degreased cotton used in spunlace nonwoven fabrics, so as to solve the problems in the background art.

[0007] To achieve the above objectives, the present invention provides the following technical solution: A drying device for degreased cotton for spunlace nonwoven fabric includes a dewatering cylinder and an upper cylinder, wherein the dewatering cylinder is rotatably installed inside the upper cylinder and a guide portion is fixed at the lower end of the upper cylinder; The dewatering cylinder has several drainage holes at the bottom and lower end of its side wall, and the guide section has a through-hole in the middle. A fixing ring is rotatably installed at the upper end of the dewatering cylinder. A feed pipe is fixed to one side of the fixing ring and the upper cylinder, and a discharge pipe is fixed to the other side of the fixing ring and the upper cylinder. The discharge pipe is connected to the feeding end of the pump. The lower end of the upper cylinder is also fixed with a lower cylinder. An air pipe is fixed to the side wall of the lower cylinder. The air inlet end of the air pipe is connected to the dryer, and the air outlet end of the air pipe extends into the interior of the upper cylinder. The air pipe is used to discharge hot air into the interior of the upper cylinder and into the interior of the dehydration cylinder through the drain hole of the dehydration cylinder to achieve drying of the material. A driving component is installed on the side wall of the lower cylinder, and the driving component is used to drive the dewatering cylinder to rotate. The dewatering cylinder is equipped with a water removal structure. When the water volume in the water collection tank of the water removal structure reaches a certain level, the pressure plate in the water removal structure can squeeze the material inside the dewatering cylinder to achieve dewatering.

[0008] Preferably, an upper ring and a lower ring are fixed from top to bottom on the bottom of the inner sidewall of the upper cylinder, and a drain outlet is provided on the lower ring. The area between the upper ring and the lower ring corresponds to the positions of several drain holes at the bottom of the sidewall of the dewatering cylinder. The exhaust end of the trachea is located on the upper ring, and the exhaust end of the trachea is set downwards.

[0009] Preferably, a plurality of partition plates are fixed to the bottom of the side wall of the dewatering cylinder, and the plurality of partition plates are distributed around the circumference of the dewatering cylinder. The partition plates are in contact with the inner side wall of the upper cylinder, and the upper and lower ends of the partition plates are respectively in contact with the lower end of the upper ring and the upper end of the lower ring.

[0010] Preferably, the dewatering structure includes a pressure plate located inside the dewatering cylinder and the fixing ring. The outer diameter of the pressure plate is equal to the inner diameter of the dewatering cylinder. A central tube is fixed at the lower center of the pressure plate. The central tube extends through the drain outlet into the lower cylinder. A water collection tank is provided inside the lower cylinder. The bottom of the outer wall of the central tube is fixedly connected to the water collection tank by several connecting rods. The lower end of the water collection tank is fixedly connected to a bottom ring by a spring. The bottom ring is fixed to the bottom of the inner wall of the lower cylinder.

[0011] Preferably, the water collection tank has a conical cross-section, a drain pipe is fixed at the lower center of the water collection tank, and a valve is installed at the drain pipe.

[0012] Preferably, a limiting ring is fixed at the upper end of the fixing ring, the inner diameter of the limiting ring is smaller than the outer diameter of the pressure plate, and guide openings are symmetrically opened on both sides of the upper end of the limiting ring. Guide plates adapted to the guide openings are symmetrically fixed on both sides of the upper end of the pressure plate, and a limiting plate is fixed at the upper end of the guide plate. The outer contour of the limiting plate is larger than the inner contour of the guide opening.

[0013] Preferably, an air inlet is provided at the top of the side wall of the central tube, a middle tube is fixed in the middle of the central tube, the middle tube is located inside the central tube, an exhaust fan is installed at the top of the pressure plate at the upper end of the middle tube, a central column is provided inside the middle tube, a plurality of baffles are fixed on the outer wall of the middle column, the plurality of baffles are fixedly connected to the inner side wall of the middle tube, and the plurality of baffles are distributed in a spiral stepped staggered arrangement.

[0014] Preferably, a filter plate is installed at the air inlet.

[0015] Preferably, the driving component includes a motor, a gear, and an external gear ring. The external gear ring is fixedly installed on the outer wall of the dehydration cylinder, the motor is installed on the outer wall of the lower cylinder, the output end of the lower cylinder is fixedly connected to the gear, and a gear opening is provided through the side wall of the upper cylinder. The gear passes through the gear opening and meshes with the external gear ring.

[0016] Compared with the prior art, the beneficial effects of the present invention are as follows: 1. The air pipe of this invention discharges the hot air generated by the dryer into the upper cylinder. With the help of the airflow circulation formed by the rotation of the dehydration cylinder and the diffusion of the hot air itself, it enters the interior of the dehydration cylinder through the drain hole of the dehydration cylinder. A partition plate is set between the upper and lower rings on the inner side wall of the upper cylinder to form multiple relatively sealed areas. The hot air is evenly distributed in each independent area to ensure that all parts of the material are dried evenly and improve the drying quality.

[0017] 2. This invention drives the dewatering cylinder to rotate and drain water through a driving component. The water flows into the water collection tank, which collects the water and gradually increases in weight. The spring is compressed, which in turn drives the pressure plate to press down and squeeze the material to drain the water. As the water volume in the water collection tank increases, the pressure of the pressure plate on the material increases, forming a dynamic pressurization effect until the water in the material is fully discharged and can no longer be squeezed out, thereby significantly improving the dewatering efficiency and effect.

[0018] 3. During the drying process of this invention, the exhaust fan operates to create negative pressure in the central tube. Moist gas enters the central tube and the middle tube through the air inlet. The spiral stepped water baffles inside the middle tube reduce the flow rate of water vapor, causing the water vapor to condense into small water droplets. Under the action of gravity, the small water droplets flow downward along the surface of the water baffles and are eventually discharged into the water collection tank, thus achieving water vapor separation and preventing water vapor from condensing on the material again. Attached Figure Description

[0019] Figure 1 This is a schematic diagram of the structure of the present invention.

[0020] Figure 2 This is a schematic diagram of the internal structure of the upper cylinder of the present invention.

[0021] Figure 3 This is a schematic diagram of the trachea location in the present invention.

[0022] Figure 4 This is a schematic diagram of one side of the water removal structure of the present invention.

[0023] Figure 5 This is a schematic diagram of the other side of the water removal structure of the present invention.

[0024] Figure 6 For the present invention Figure 5 A schematic diagram of the structure at point A in the middle.

[0025] Figure reference numerals: 1. Dewatering cylinder; 11. Divider plate; 12. External gear ring; 13. Fixing ring; 14. Limiting ring; 15. Guide port; 2. Upper cylinder; 21. Feed pipe; 22. Discharge pipe; 23. Gear port; 24. Upper ring; 25. Lower ring; 251. Drain outlet; 26. Guide section; 27. Drain outlet; 28. Lower cylinder; 29. ​​Bottom ring; 31. Motor; 32. Gear; 4. Air pipe; 5. Dewatering structure; 51. Pressure plate; 52. Guide plate; 53. Limiting plate; 54. Central pipe; 541. Air inlet; 542. Filter plate; 55. Connecting rod; 56. Water collection tank; 57. Drain pipe; 58. Valve; 59. Spring; 61. Middle pipe; 62. Middle column; 63. Water baffle; 64. Exhaust fan. Detailed Implementation

[0026] To make the objectives, technical solutions, and advantages of this invention clearer, the invention will be further described in detail below with reference to the accompanying drawings and embodiments.

[0027] The core technical concept of this invention lies in utilizing the airflow circulation formed by the rotation of the dehydration drum and the diffusion of the hot air itself. By setting a partition plate on the inner side wall of the upper drum to form multiple relatively sealed areas, the hot air is ensured to be evenly distributed in each independent area. At the same time, the dehydration drum is driven to rotate and drain water by a drive component, and the dynamic pressurization effect of the water collection tank and spring is used to improve the dehydration efficiency. In addition, water vapor separation is achieved by setting a spiral stepped staggered water baffle plate in the middle tube, which further improves the drying effect.

[0028] In one embodiment, such as Figures 1-6 As shown, a degreased cotton drying device for spunlace nonwoven fabric includes a dewatering cylinder 1 and an upper cylinder 2. The dewatering cylinder 1 is rotatably installed inside the upper cylinder 2, and a guide section 26 is fixed at the lower end of the upper cylinder 2. The dehydration cylinder 1 has several drainage holes at the bottom and lower end of its side wall, and the guide section 26 has a drainage outlet 27 through its middle section. A fixing ring 13 is rotatably installed on the upper end of the dewatering cylinder 1. A feed pipe 21 is fixed on one side of the fixing ring 13 and the upper cylinder 2, and a discharge pipe 22 is fixed on the other side of the fixing ring 13 and the upper cylinder 2. The discharge pipe 22 is connected to the feeding end of the pump. The lower end of the upper cylinder 2 is also fixed with a lower cylinder 28. An air pipe 4 is fixed to the side wall of the lower cylinder 28. The air inlet end of the air pipe 4 is connected to the dryer, and the exhaust end of the air pipe 4 extends into the interior of the upper cylinder 2. The air pipe 4 is used to discharge hot air into the interior of the upper cylinder 2 and into the interior of the dehydration cylinder 1 through the drain hole of the dehydration cylinder 1 to achieve drying of the material. A driving component is installed on the side wall of the lower cylinder 28, and the driving component is used to drive the dewatering cylinder 1 to rotate. The dehydration cylinder 1 is equipped with a water removal structure 5. When the water volume in the water collection tank 56 of the water removal structure 5 reaches a certain level, the pressure plate 51 in the water removal structure 5 can squeeze the material inside the dehydration cylinder 1 to achieve dehydration.

[0029] In this embodiment, the degreased cotton material to be processed is conveyed into the dehydration cylinder 1 through the feed pipe 21.

[0030] The drive unit on the side wall of the lower cylinder 28 starts working, driving the dewatering cylinder 1 to rotate inside the upper cylinder 2 via the transmission components. The rotation of the dewatering cylinder causes the material inside to be subjected to centrifugal force.

[0031] As the dewatering cylinder 1 rotates, the water removal structure 5 installed inside the dewatering cylinder 1 squeezes the material. During the squeezing process, the water in the material is squeezed out. Since the bottom and lower end of the side wall of the dewatering cylinder 1 are provided with drainage holes, the squeezed water flows out of the dewatering cylinder 1 through these drainage holes.

[0032] The water flows down the guide section 26 fixed at the lower end of the upper cylinder 2, and finally exits the device through the drain port 27 through the middle of the guide section 26, completing the initial dewatering treatment of the material. The guide section 26 has a conical structure to facilitate the downward flow of water through it.

[0033] The air pipe 4, fixed to the side wall of the lower cylinder 28, has its inlet end connected to the dryer, and the hot air generated by the dryer is transported through the air pipe 4. The exhaust end of the air pipe 4 extends into the interior of the upper cylinder 2. After the hot air enters the upper cylinder, it enters the interior of the dehydration cylinder 1 through the drain hole of the dehydration cylinder 1 by means of the airflow circulation formed by the rotation of the dehydration cylinder and the diffusion of the hot air itself.

[0034] The hot air entering the dehydration cylinder 1 comes into full contact with the dehydrated material, and the hot air transfers heat to the material, causing the remaining moisture in the material to evaporate, thereby achieving the purpose of drying the material.

[0035] In this embodiment, specifically, an upper ring 24 and a lower ring 25 are fixed from top to bottom on the bottom of the inner side wall of the upper cylinder 2. A drain outlet 251 is provided on the lower ring 25. The area between the upper ring 24 and the lower ring 25 corresponds to the positions of several drain holes at the bottom of the side wall of the dewatering cylinder 1. The exhaust end of the trachea 4 is located on the upper ring 24, and the exhaust end of the trachea 4 is set downwards.

[0036] Specifically, a number of partition plates 11 are fixed at the bottom of the side wall of the dewatering cylinder 1. The partition plates 11 are distributed around the circumference of the dewatering cylinder 1. The partition plates 11 are attached to the inner side wall of the upper cylinder 2. The upper and lower ends of the partition plates 11 are attached to the lower end of the upper ring 24 and the upper end of the lower ring 25, respectively.

[0037] When the dewatering cylinder 1 rotates to dewater the material, the water squeezed out from the material is discharged through the drain hole and enters the area between the upper ring 24 and the lower ring 25. At the same time, the partition plate 11 is tightly fitted with the inner wall of the upper cylinder 2 and the upper ring 24 and the lower ring 25, forming multiple relatively sealed areas.

[0038] As the dehydration cylinder 1 continues to rotate, it drives the partition plate 11 to rotate as well. When each independent area rotates to the position of the drain outlet 251 opened on the lower ring 25, the water in the area will be discharged into the fixed guide section 26 below through the drain outlet 251. Finally, the water flows down the inclined surface of the guide section 26 and is discharged from the outside of the device through the drain outlet 27 opened through the middle of the guide section 26.

[0039] When each independent zone rotates to the exhaust end position of the upper ring 24 air pipe 4, hot air will enter this independent zone; the partition plate 11 enables the hot air to be distributed more evenly in each independent zone, ensuring that the material is dried evenly in all parts.

[0040] In this embodiment, specifically, the dewatering structure 5 includes a pressure plate 51 located inside the dewatering cylinder 1 and the fixing ring 13. The outer diameter of the pressure plate 51 is equal to the inner diameter of the dewatering cylinder 1. A central tube 54 is fixed at the lower middle part of the pressure plate 51. The central tube 54 extends through the drain outlet 27 to the inside of the lower cylinder 28. A water collection tank 56 is provided inside the lower cylinder 28. The bottom of the outer wall of the central tube 54 is fixedly connected to the water collection tank 56 by several connecting rods 55. The lower end of the water collection tank 56 is fixedly connected to the bottom ring 29 by a spring 59. The bottom ring 29 is fixed to the bottom of the inner wall of the lower cylinder 28.

[0041] Specifically, the water collection tank 56 has a conical cross-section, and a drain pipe 57 is fixed at the middle of the lower end of the water collection tank 56. A valve 58 is installed at the drain pipe 57.

[0042] Specifically, a limiting ring 14 is fixed to the upper end of the fixing ring 13. The inner diameter of the limiting ring 14 is smaller than the outer diameter of the pressure plate 51. Guide openings 15 are symmetrically opened on both sides of the upper end of the limiting ring 14. Guide plates 52 that are adapted to the guide openings 15 are symmetrically fixed on both sides of the upper end of the pressure plate 51. A limiting plate 53 is fixed to the upper end of the guide plate 52. The outer contour of the limiting plate 53 is larger than the inner contour of the guide opening 15.

[0043] Water flows into the water collection tank 56 through the drain outlet 27 in the middle of the guide section 26. As the water accumulates in the water collection tank 56, it presses down the spring 59. The water collection tank 56 drives the pressure plate 51 to move downward. The pressure plate 51 squeezes the material in the dewatering cylinder 1 to remove water.

[0044] The water discharged from the dewatering cylinder 1 will sequentially flow through the drain hole of the dewatering cylinder 1 and the drain outlet 27 in the middle of the guide section 26 back into the water collection tank 56. This forms a cyclical drainage process. In this process, the greater the amount of material drained, the more water enters the water collection tank 56, the greater the weight of the water collection tank 56, the stronger the pressure on the spring 59, and the greater the degree of compression of the spring 59. The greater the degree of compression of the spring 59, the greater the downward displacement of the pressure plate 51, and the stronger the squeezing effect on the material in the dewatering cylinder 1.

[0045] The conical shape allows water flowing into the water collection tank 56 to naturally converge to the bottom, reducing water accumulation and residue in the water collection tank 56 and improving the water collection efficiency of the water collection tank 56.

[0046] When no more water is added to the water collection tank 56, the water is discharged from the device through the drain pipe 57 under the action of gravity by opening the valve 58. At this time, the water collection tank 56 and the pressure plate 51 return to their original positions under the rebound action of the spring 59.

[0047] To prevent the pressure plate 51 from popping out of the dehydration cylinder 1 and the fixing ring 13, a limiting ring 14 is fixed to the upper end of the fixing ring 13. The guide openings 15 symmetrically opened on both sides of the upper end of the limiting ring 14 are adapted to the guide plates 52 symmetrically fixed on both sides of the upper end of the pressure plate 51. The guide plates 52 can move up and down within the guide openings 15 to avoid displacement.

[0048] The outer contour of the limiting plate 53 fixed at the upper end of the guide plate 52 is larger than the inner contour of the guide port 15, which prevents the pressure plate 51 from moving downward continuously, thereby preventing the pressure plate 51 from directly contacting the bottom of the dehydration cylinder 1. This would cause the weight of the water removal structure 5 and the water to be added to the dehydration cylinder 1, resulting in the position of the dehydration cylinder 1 shifting and ultimately causing damage to the device.

[0049] In this embodiment, specifically, an air inlet 541 is provided at the top of the side wall of the central tube 54, a central tube 61 is fixed in the middle of the central tube 54, the central tube 61 is located inside the central tube 54, an exhaust fan 64 is installed at the top of the pressure plate 51 at the upper end of the central tube 61, a central column 62 is provided inside the central tube 61, a number of baffles 63 are fixed on the outer wall of the central column 62, the number of baffles 63 are fixedly connected to the inner side wall of the central tube 61, and the number of baffles 63 are arranged in a spiral staggered distribution.

[0050] Specifically, a filter plate 542 is installed at the air inlet 541.

[0051] During drying, the exhaust fan 64 operates, creating a negative pressure in the central pipe 61, which in turn creates a certain negative pressure in the upper part of the central pipe 54. At this time, humid gas enters the central pipe 54 and the central pipe 61 sequentially through the air inlet 541. The spirally stepped, interlocking baffles 63 reduce the flow rate of water vapor, and when the water vapor comes into contact with the spirally stepped, interlocking baffles 63, the water vapor condenses into small water droplets. These small water droplets adhere to the surface of the baffles 63. Because the baffles 63 are spirally stepped, the small water droplets flow downward along the surface of the baffles 63 under the action of gravity, and finally flow into the water collection tank 56 through the central pipe 54.

[0052] The filter plate 542 can prevent cotton fibers from entering the central tube 54 through the air inlet 541.

[0053] In this embodiment, the driving component specifically includes a motor 31, a gear 32, and an external gear ring 12. The external gear ring 12 is fixedly installed on the outer wall of the dehydration cylinder 1. The motor 31 is installed on the outer wall of the lower cylinder 28. The output end of the lower cylinder 28 is fixedly connected to the gear 32. The side wall of the upper cylinder 2 has a through gear opening 23. The gear 32 passes through the gear opening 23 and meshes with the external gear ring 12.

[0054] Motor 31 drives gear 32 to rotate. Since gear 32 passes through gear opening 23 on the side wall of upper cylinder 2 and meshes with outer gear ring 12 fixed on the outer side wall of dewatering cylinder 1, it will drive outer gear ring 12 to rotate together, thereby causing dewatering cylinder 1 to rotate around its own axis. The centrifugal force generated by the rotation of dewatering cylinder 1 can cause the water in the material inside the cylinder to be thrown out, achieving the purpose of dehydration and drying.

[0055] The above embodiment discloses a degreased cotton drying device for spunlace nonwoven fabrics, wherein the degreased cotton material to be processed is conveyed into the dewatering cylinder 1 through the feed pipe 21. The dewatering cylinder 1 starts to rotate under the drive of the driving components on the side wall of the lower cylinder 28, including a motor 31, a gear 32 and an external gear ring 12. The rotation of the dewatering cylinder causes the material inside to be subjected to centrifugal force, and the water in the material is initially thrown out.

[0056] Several drainage holes are provided at the bottom and lower end of the side wall of the dewatering cylinder 1. The squeezed water flows out of the dewatering cylinder 1 through these drainage holes and flows down along the guide section 26 fixed at the lower end of the upper cylinder 2. Finally, it is discharged outside the device through the drainage port 27 through the middle of the guide section 26, thus completing the initial dewatering treatment of the material.

[0057] As the dehydration process proceeds, the water discharged from the material flows into the water collection tank 56 through the drain outlet 27 of the guide section 26. As the water volume in the water collection tank 56 increases, the weight of the tank increases, increasing the pressure on the spring 59 and causing it to compress. This compression of the spring 59 drives the pressure plate 51 downwards, further squeezing the material in the dehydration cylinder 1, achieving dynamic pressure dehydration. The water in the material is fully discharged until no more can be squeezed out, thus significantly improving dehydration efficiency and effectiveness.

[0058] During drying, hot air enters the upper cylinder 2 and, with the help of the airflow circulation formed by the rotation of the dehydration cylinder 1 and the diffusion of the hot air itself, enters the interior of the dehydration cylinder 1 through the drain hole of the dehydration cylinder 1.

[0059] Several partition plates 11 are provided between the upper ring 24 and the lower ring 25 on the inner wall of the upper cylinder 2. These partition plates 11 are distributed around the circumference of the dehydration cylinder 1 and fit against the inner wall of the upper cylinder 2 to form multiple relatively sealed areas. When each independent area rotates to the exhaust end position of the air pipe 4 of the upper ring 24, hot air enters the area and is evenly distributed therein.

[0060] During the drying process, the exhaust fan 64 creates a negative pressure in the central pipe 61, allowing humid gas to enter the central pipe 54 and the central pipe 61 through the air inlet 541. Inside the central pipe 61, spirally arranged, stepped baffles 63 reduce the flow rate of water vapor and cause it to condense into small water droplets. These droplets flow downwards along the surface of the baffles 63 under gravity and eventually drain into the water collection tank 56, achieving water vapor separation and preventing water vapor from re-condensing on the material.

[0061] After the material is dried, the pump uses negative pressure to quickly extract the material from the dewatering cylinder 1 through the discharge pipe 22.

[0062] It should be added that, such as Figure 2 As shown, the upper ring 24 and lower ring 25 of the dehydration cylinder 1 and the upper cylinder 2 are rotatably connected and can be made of thrust ball bearings; A retaining ring 13 is rotatably mounted on the upper end of the dehydration cylinder 1, and the connection can be made using an angular contact ball bearing.

[0063] Any aspects of this invention not described in detail are well-known to those skilled in the art.

[0064] The above description is merely a specific embodiment of this application, but the scope of protection of this application is not limited thereto. Any variations or substitutions that can be easily conceived by those skilled in the art within the technical scope disclosed in this application should be included within the scope of protection of this application. Therefore, the scope of protection of this application should be determined by the scope of the claims.

Claims

1. A drying device for degreased cotton used in spunlace nonwoven fabrics, characterized in that, It includes a dewatering cylinder (1) and an upper cylinder (2), wherein the dewatering cylinder (1) is rotatably installed inside the upper cylinder (2), and a guide part (26) is fixed at the lower end of the upper cylinder (2). The dehydration cylinder (1) has several drainage holes at the bottom and lower end of its side wall, and the guide section (26) has a drainage outlet (27) through the middle. A fixing ring (13) is rotatably installed on the upper end of the dewatering cylinder (1). A feed pipe (21) is fixed on one side of the fixing ring (13) and the upper cylinder (2). A discharge pipe (22) is fixed on the other side of the fixing ring (13) and the upper cylinder (2). The discharge pipe (22) is connected to the feeding end of the pump. The lower end of the upper cylinder (2) is also fixed with a lower cylinder (28). The side wall of the lower cylinder (28) is fixed with an air pipe (4). The air inlet end of the air pipe (4) is connected to the dryer. The exhaust end of the air pipe (4) extends into the upper cylinder (2). The air pipe (4) is used to discharge hot air into the upper cylinder (2) and into the dehydration cylinder (1) through the drain hole of the dehydration cylinder (1) to dry the material. A driving component is installed on the side wall of the lower cylinder (28), and the driving component is used to drive the dewatering cylinder (1) to rotate; The dehydration cylinder (1) is equipped with a water removal structure (5). When the amount of water in the water collection tank (56) in the water removal structure (5) reaches a certain level, the pressure plate (51) in the water removal structure (5) can squeeze the material inside the dehydration cylinder (1) to achieve dehydration.

2. The degreased cotton drying device for spunlace nonwoven fabric according to claim 1, characterized in that, The bottom of the inner wall of the upper cylinder (2) is fixed with an upper ring (24) and a lower ring (25) from top to bottom. A drain outlet (251) is provided on the lower ring (25). The area between the upper ring (24) and the lower ring (25) corresponds to the position of several drain holes at the bottom of the side wall of the dewatering cylinder (1). The exhaust end of the air pipe (4) is located on the upper ring (24), and the exhaust end of the air pipe (4) is set downward.

3. The degreased cotton drying device for spunlace nonwoven fabric according to claim 2, characterized in that, The bottom of the side wall of the dehydration cylinder (1) is fixed with several partition plates (11). The partition plates (11) are distributed around the circumference of the dehydration cylinder (1). The partition plates (11) are attached to the inner side wall of the upper cylinder (2). The upper and lower ends of the partition plates (11) are attached to the lower end of the upper ring (24) and the upper end of the lower ring (25) respectively.

4. The degreased cotton drying device for spunlace nonwoven fabric according to claim 1, characterized in that, The dewatering structure (5) includes a pressure plate (51) located inside the dewatering cylinder (1) and the fixing ring (13). The outer diameter of the pressure plate (51) is equal to the inner diameter of the dewatering cylinder (1). A central tube (54) is fixed at the middle of the lower end of the pressure plate (51). The central tube (54) extends through the drain port (27) to the inside of the lower cylinder (28). A water collection tank (56) is provided inside the lower cylinder (28). The bottom of the outer wall of the central tube (54) is fixedly connected to the water collection tank (56) by several connecting rods (55). The lower end of the water collection tank (56) is fixedly connected to the bottom ring (29) by a spring (59). The bottom ring (29) is fixed to the bottom of the inner wall of the lower cylinder (28).

5. A degreased cotton drying device for spunlace nonwoven fabric according to claim 4, characterized in that, The water collection tank (56) has a conical cross-section. A drain pipe (57) is fixed at the middle of the lower end of the water collection tank (56), and a valve (58) is installed at the drain pipe (57).

6. The degreased cotton drying device for spunlace nonwoven fabric according to claim 4, characterized in that, The upper end of the fixed ring (13) is fixed with a limiting ring (14). The inner diameter of the limiting ring (14) is smaller than the outer diameter of the pressure plate (51). The upper end of the limiting ring (14) is symmetrically provided with guide openings (15). The upper end of the pressure plate (51) is symmetrically fixed with guide plates (52) that are adapted to the guide openings (15). The upper end of the guide plate (52) is fixed with a limiting plate (53). The outer contour of the limiting plate (53) is larger than the inner contour of the guide opening (15).

7. A degreased cotton drying device for spunlace nonwoven fabric according to claim 4, characterized in that, An air inlet (541) is provided on the top of the side wall of the central tube (54). A central tube (61) is fixed in the middle of the central tube (54). The central tube (61) is located inside the central tube (54). An exhaust fan (64) is installed on the top of the pressure plate (51) at the upper end of the central tube (61). A central column (62) is provided inside the central tube (61). Several baffles (63) are fixed on the outer wall of the central column (62). Several baffles (63) are fixedly connected to the inner side wall of the central tube (61), and several baffles (63) are arranged in a spiral staggered distribution.

8. A degreased cotton drying device for spunlace nonwoven fabric according to claim 7, characterized in that, A filter plate (542) is installed at the air inlet (541).

9. A degreased cotton drying device for spunlace nonwoven fabric according to claim 1, characterized in that, The driving component includes a motor (31), a gear (32) and an external gear ring (12). The external gear ring (12) is fixedly installed on the outer wall of the dehydration cylinder (1). The motor (31) is installed on the outer wall of the lower cylinder (28). The output end of the lower cylinder (28) is fixedly connected to the gear (32). The side wall of the upper cylinder (2) is provided with a gear opening (23). The gear (32) passes through the gear opening (23) and meshes with the external gear ring (12).

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