A high-efficiency drying device for non-woven fabric production

Abstract

The present invention discloses a high-efficiency drying device for non-woven fabric production, including a drying box, a drainage drying mechanism is provided in the drying box, a hot air circulation mechanism is provided on the drying box, and an air dehumidification mechanism is provided on the hot air circulation mechanism; the drainage drying mechanism includes a lower extrusion roller, a water collecting box, a drainage pipe, a lifting extrusion part and a hot air drying part, the lower extrusion roller is rotatably connected to one side of the inside of the drying box, the water collecting box is installed in the drying box, the drainage pipe is installed on one side of the water collecting box, the drainage pipe extends through the drying box, the lifting extrusion part is located above the lower extrusion roller, and the hot air drying part is located on one side of the lower extrusion roller; the air dehumidification mechanism includes a dehumidification part and a sealing drying part, and the sealing drying part dries the inside of the dehumidification part. The beneficial effects of the present invention are that heat loss is avoided, the heating efficiency of air is improved, energy consumption is reduced, the drying effect is improved, the granular desiccant can be dried, and the dehumidification effect is improved.

Description

Technical Field

[0001] The invention relates to the technical field of nonwoven fabric drying, and more particularly to a high-efficiency drying device for nonwoven fabric production. Background Art

[0002] Non-woven fabrics are made of directional or random fibers. They are a new generation of environmentally friendly materials with the characteristics of moisture resistance, breathability, flexibility, and light weight. For example, they are mostly made of polypropylene PP material pellets as raw materials, and are produced through high-temperature melting, spinning, laying, hot pressing and winding. They are called cloth because they have the appearance and certain properties of cloth; non-woven fabrics need to be rolled up during the production process. Since non-woven fabrics will absorb a lot of water during the production process, they need to be dried before rolling.

[0003] Existing non-woven fabric drying devices, such as the Chinese patent document with application number CN201810704222.X, achieve drying of the entire non-woven fabric in the oven by setting a ventilation duct with a shape similar to the direction of the non-woven fabric belt and an air outlet set on the side of the ventilation duct facing the non-woven fabric. The drying area is large and the heating is uniform, which increases the heating time, ensures the drying effect of the non-woven fabric, and also improves the efficiency of the drying processing of the non-woven fabric. The wind generated by the fan is heated by the heating cylinder and enters the ventilation duct, but cannot dehumidify the air, affecting the drying effect when the air is relatively humid. Drying only by hot air consumes a lot of energy and cannot be effectively dried. The generated water vapor is discharged by the exhaust fan. The discharged water vapor contains heat, and complete discharge causes heat loss. Heating only the external air is not only inefficient but also consumes a lot of energy.

[0004] It should be noted that the above contents belong to the technical knowledge of the inventor and do not necessarily constitute prior art. Summary of the invention

[0005] In view of the above defects, the present invention provides a high-efficiency drying device for non-woven fabric production to solve the above problems.

[0006] To achieve the above object, the present invention adopts the following technical solutions:

[0007] A high-efficiency drying device for non-woven fabric production, comprising a drying box, a drainage drying mechanism is arranged in the drying box, a hot air circulation mechanism is arranged on the drying box, and an air dehumidification mechanism is arranged on the hot air circulation mechanism;

[0008] The drainage and drying mechanism comprises a lower squeezing roller, a water collecting box, a drainage pipe, a lifting squeezing part and a hot air drying part, wherein the lower squeezing roller is rotatably connected to one side of the drying box, the water collecting box is installed in the drying box, the drainage pipe is installed on one side of the water collecting box, the drainage pipe penetrates and extends out of the drying box, the lifting squeezing part is located above the lower squeezing roller, and the hot air drying part is located on one side of the lower squeezing roller;

[0009] The air dehumidification mechanism comprises a dehumidification part and a sealed drying part. The dehumidification part dehumidifies the air entering the drying box, and the sealed drying part dries the inside of the dehumidification part.

[0010] Furthermore, the lifting and extruding part includes a power push rod installed in the drying box body, the telescopic end of the power push rod is downward, a lifting top plate is installed on the telescopic end of the power push rod, a vertical sliding rod is provided on the lifting top plate, the vertical sliding rod passes through the lifting top plate and is slidably connected to the lifting top plate, a lifting bracket is installed at the bottom end of the vertical sliding rod, an upper extrusion roller is rotatably connected to the lifting bracket, the upper extrusion roller is located above the lower extrusion roller, a telescopic spring is mounted on the vertical sliding rod, one end of the telescopic spring is fixedly connected to the lifting top plate, and the other end of the telescopic spring is fixedly connected to the lifting bracket, and silicone pads are mounted on the lower extrusion roller and the upper extrusion roller.

[0011] Furthermore, the hot air drying section includes a first hollow roller rotatably connected to the drying box body, a second hollow roller rotatably connected to the drying box body, the second hollow roller is located on one side of the first hollow roller, a plurality of air outlet holes are provided on the first hollow roller and the second hollow roller, one end of the first hollow roller and the second hollow roller passes through and extends out of the drying box body, a turbine is installed at one end of the first hollow roller and the second hollow roller, a hollow rotating rod is connected to the other end of the first hollow roller and the second hollow roller, a rotary joint is installed on the drying box body, the hollow rotating rod passes through the drying box body and is connected with the rotary joint, a hot air blower is installed at the rear of the drying box body, a shunt pipe is installed at the air outlet of the hot air blower, one end of the shunt pipe is connected to the rotary joint, a solenoid valve is provided on the shunt pipe, an air inlet dehumidification pipe is installed at the air inlet of the hot air blower, and two auxiliary rollers are rotatably connected to the drying box body.

[0012] Furthermore, the hot air circulation mechanism is opened in the vertical slide groove inside the drying box body, the vertical slide groove is located above the first hollow roller, and a lifting slider is slidably connected in the vertical slide groove, a semicircular plate is installed between the lifting sliders, an L-shaped connecting rod is installed on one side of the lifting top plate, the vertical arm end of the L-shaped connecting rod is fixedly connected to the top of the semicircular plate, a plurality of exhaust holes are provided on one side of the semicircular plate, an air suction hood is installed on the semicircular plate, the air suction hood is located on the exhaust holes, a suction fan is installed on the top of the drying box body, a tin foil hose is installed at the suction end of the suction fan, one end of the tin foil hose passes through the drying box body and is fixedly connected to the suction hood, an air outlet pipe is installed at the air outlet end of the suction fan, and one end of the air outlet pipe is fixedly connected to the air inlet dehumidification pipe.

[0013] Furthermore, the dehumidification unit includes a plurality of hollow drums arranged in the air inlet dehumidification duct, the hollow drums are provided with a plurality of groups of small air permeable holes, the hollow drums are filled with granular desiccant, one end of the hollow drum is connected with a hollow output rod, the hollow output rod penetrates the air inlet dehumidification duct and is rotatably connected to the air inlet dehumidification duct, a circular hole is provided at the center of the other end of the hollow drum, a linear bearing is installed in the circular hole, a hollow exhaust pipe is mounted on the linear bearing, the hollow exhaust pipe penetrates the air inlet dehumidification duct and is movably connected to the air inlet dehumidification duct, a driven gear is mounted on the hollow output rod, the driven gear is fixedly connected to the hollow output rod, a driving motor is installed on the air inlet dehumidification duct, a driving gear is installed on the output end of the driving motor, the driving gear and the driven gear are connected by a chain, and a filter is installed in the hollow output rod and the hollow exhaust pipe.

[0014] Furthermore, the sealed drying part includes a plurality of sealing rings slidably connected in the hollow drum, the outer wall of the sealing ring is slidably connected to the inner wall of the hollow drum, a transverse connecting rod is installed between the sealing rings, one end of the hollow exhaust pipe is located in the sealing ring on the left, a fixed bearing is installed at one end of the hollow exhaust pipe, a cross connecting rod is installed on the outer ring of the fixed bearing, the cross connecting rod is fixedly connected to the inner wall of the sealing ring on the left, a connecting piece is sleeved on the hollow exhaust pipe, the connecting piece is fixedly connected to the outer wall of the hollow exhaust pipe, a fixing rod is installed between the connecting pieces, an electric push rod is installed on the top of the air inlet dehumidification pipe, a pushing rod is installed on the telescopic end of the electric push rod, one end of the pushing rod is fixedly connected to the connecting piece, a rotating joint is installed at one end of the hollow output rod, a gas pipeline is connected to the rotating joint, one end of the gas pipeline is fixedly connected to the air outlet of the hot air blower, and an electromagnetic valve is provided on the gas pipeline.

[0015] Furthermore, one end of the lower extrusion roller extends through the drying box, one end of the lower extrusion roller is equipped with turbine 2, a rotating motor is installed on the drying box, a rotating bracket is installed at the end of the drying box away from the rotating motor, a worm is installed at the output end of the rotating motor, the end of the worm away from the rotating motor is rotatably connected to the rotating bracket, and turbine 2, turbine 1 and the worm are meshed with each other.

[0016] Furthermore, there are four hollow drums, which are arranged obliquely from top to bottom and are located directly below the air inlet dehumidification duct. There are five groups of air holes, each group of air holes has two rows and is distributed in a ring shape on the hollow drum, and there is a gap between each group of air holes.

[0017] Furthermore, five sealing rings are provided and are located in the gaps between the five groups of air-permeable holes.

[0018] The beneficial effects of the present invention are as follows: the upper squeezing roller and the semicircular plate are driven to rise and fall by the power push rod, and after the upper squeezing roller and the semicircular plate are raised, the non-woven fabric is conveniently inserted into the drying box, and the non-woven fabric is squeezed by the upper squeezing roller and the lower squeezing roller, and the silicone soft pads on the upper squeezing roller and the lower squeezing roller can fully contact with the non-woven fabric, and the non-woven fabric can be fully squeezed, and the moisture in the non-woven fabric is initially squeezed out, which is convenient for subsequent drying;

[0019] The hot air is generated by the hot air blower and transported to the first hollow roller and the second hollow roller. The hot air can heat the first hollow roller and the second hollow roller. The non-woven fabric contacts the first hollow roller and the second hollow roller. The heat on the surface of the first hollow roller and the second hollow roller is used to dry the non-woven fabric. At the same time, the hot air in the first hollow roller and the second hollow roller is blown out through the air outlet holes. The hot air is blown on the non-woven fabric to dry it. The non-woven fabric can be dried by the heat on the surface of the first hollow roller and the second hollow roller and the hot air, thereby reducing energy consumption and improving drying effect.

[0020] When the non-woven fabric is dried on the first hollow roller, water vapor is easily generated due to the high moisture content on the non-woven fabric. The water vapor can be discharged through the semicircular plate, exhaust holes, suction hood, suction fan, tin foil hose and air outlet pipe to prevent the water vapor from falling on the non-woven fabric again, thereby improving the drying effect.

[0021] The exhausted water vapor enters the hollow drum through the air inlet dehumidification pipe, and the hollow drum drives the internal granular desiccant to rotate. The granular desiccant can dehumidify the water vapor and the air entering from the outside at the same time. After the exhausted water vapor is dehumidified, the hot air passes through the hot air blower again and enters the drying box to dry the non-woven fabric, thus avoiding heat loss, improving the heating efficiency of the air, and reducing energy consumption.

[0022] The electric push rod pushes the sealing ring to slide in the hollow drum, and the air permeable holes are sealed by the sealing ring. The hot air generated by the hot air blower enters the hollow drum through the air pipeline. At the same time, the hollow drum rotates, which can make the hot air fully contact with the granular desiccant in the hollow drum, and the granular desiccant can be dried to eliminate water vapor in the granular desiccant. The granular desiccant can be reused, which improves the dehumidification effect. BRIEF DESCRIPTION OF THE DRAWINGS

[0023] Figure 1 It is a structural schematic diagram of a high-efficiency drying device for non-woven fabric production according to the present invention;

[0024] Figure 2 is a front view of the lifting and extruding portion;

[0025] Figure 3 is a top view of the hot air drying section;

[0026] Figure 4is an enlarged cross-sectional view of the semicircular plate;

[0027] Figure 5 It is the rear view of the drying box;

[0028] Figure 6 It is an enlarged cross-sectional view of the air inlet dehumidification duct;

[0029] Figure 7 This is an enlarged rear view of the air inlet dehumidification duct;

[0030] Figure 8 is an enlarged front view of the dehumidification section;

[0031] Fig. 9 is an enlarged cross-sectional view of the sealed drying section;

[0032] In the figure, 1, drying box; 2, lower squeezing roller; 3, water collecting box; 4, drainage pipe; 5, lifting squeezing part; 6, hot air drying part; 7, dehumidification part; 8, sealing drying part; 9, power push rod; 10, lifting top plate; 11, vertical slide bar; 12, lifting bracket; 13, upper squeezing roller; 14, telescopic spring; 15, silicone cushion; 16, first hollow roller; 17, second hollow roller; 18, air outlet; 19, turbine 1; 20, hollow rotating rod; 21, rotary joint; 22, hot air blower; 23, shunt pipe; 24, air inlet dehumidification pipeline; 25, auxiliary roller; 26, vertical slide groove; 27, lifting slider; 28, semicircular plate; 29, L-shaped connecting rod; 30, exhaust hole ;31. Suction hood;32. Suction fan;33. Tin foil hose;34. Air outlet pipe;35. Hollow drum;36. Air permeability holes;37. Hollow output rod;38. Linear bearing;39. Hollow exhaust pipe;40. Driven gear;41. Driving motor;42. Driving gear;43. Chain;44. Filter;45. Sealing ring;46. Transverse connecting rod;47. Fixed bearing;48. Cross connecting rod;49. Connecting piece;50. Fixed rod;51. Electric push rod;52. Push rod;53. Rotating joint;54. Gas pipeline;55. Solenoid valve;56. Turbine 2;57. Rotating motor;58. Rotating bracket;59. Worm;60. Solenoid valve. DETAILED DESCRIPTION

[0033] In order to make the above-mentioned objects, features and advantages of the present invention more obvious and easy to understand, the specific embodiments of the present invention are described in detail below in conjunction with the accompanying drawings. In the following description, many specific details are set forth to facilitate a full understanding of the present invention. However, the present invention can be implemented in many other ways different from those described herein, and those skilled in the art can make similar improvements without violating the connotation of the present invention, so the present invention is not limited by the specific embodiments disclosed below.

[0034] The present application embodiment provides a high-efficiency drying device for non-woven fabric production. Figure 1-Figure 9 : It includes a drying box 1, a drainage and drying mechanism is provided in the drying box 1, a hot air circulation mechanism is provided on the drying box 1, and an air dehumidification mechanism is provided on the hot air circulation mechanism;

[0035] The drainage and drying mechanism includes a lower squeezing roller 2, a water collecting box 3, a drainage pipe 4, a lifting squeezing part 5 and a hot air drying part 6. The lower squeezing roller 2 is rotatably connected to one side of the inside of the drying box 1. The water collecting box 3 is installed in the drying box 1. The drainage pipe 4 is installed on one side of the water collecting box 3. The drainage pipe 4 extends through the drying box 1. The lifting squeezing part 5 is located above the lower squeezing roller 2, and the hot air drying part 6 is located on one side of the lower squeezing roller 2.

[0036] The air dehumidification mechanism includes a dehumidification part 7 and a sealed drying part 8 . The dehumidification part 7 dehumidifies the air entering the drying box 1 , and the sealed drying part 8 dries the inside of the dehumidification part 7 .

[0037] Specifically, in practical applications, the non-woven fabric is passed through the feed port and the discharge port of the drying box 1 into the drying box 1, and the non-woven fabric is pulled from one end to the other end. The non-woven fabric is located above the lower squeezing roller 2, and the non-woven fabric is squeezed by the lower squeezing roller 2 and the lifting squeezing part 5. The water squeezed from the non-woven fabric falls into the water collecting box 3, and then the water is discharged through the drain pipe 4.

[0038] The nonwoven fabric is dried by the hot air drying section 6, which reduces energy consumption and improves the drying effect;

[0039] The exhaust water vapor is dehumidified by the dehumidifier 7, and the hot air enters the drying box 1 again to dry the non-woven fabric, thereby avoiding heat loss, improving the heating efficiency of the air, and reducing energy consumption;

[0040] The dehumidifying section 7 is dried by sealing the drying section 8, thereby eliminating the water vapor in the dehumidifying section 7 and improving the dehumidification effect.

[0041] Refer to the instruction manual Figure 1 And the instruction manual Figure 2 The lifting and squeezing part 5 includes a power push rod 9 installed in the drying box body 1, the telescopic end of the power push rod 9 is downward, and a lifting top plate 10 is installed on the telescopic end of the power push rod 9, and a vertical slide bar 11 is provided on the lifting top plate 10, and the vertical slide bar 11 penetrates the lifting top plate 10 and is slidably connected with the lifting top plate 10, and a lifting bracket 12 is installed at the bottom end of the vertical slide bar 11, and an upper squeezing roller 13 is rotatably connected to the lifting bracket 12, and the upper squeezing roller 13 is located above the lower squeezing roller 2, and a telescopic spring 14 is sleeved on the vertical slide bar 11, and one end of the telescopic spring 14 is fixedly connected to the lifting top plate 10, and the other end of the telescopic spring 14 is fixedly connected to the lifting bracket 12, and a silicone cushion 15 is sleeved on the lower squeezing roller 2 and the upper squeezing roller 13.

[0042] Specifically in practical applications, the power push rod 9 starts to work, and the telescopic end of the power push rod 9 contracts to drive the lifting top plate 10 to rise. The lifting top plate 10 drives the lifting bracket 12 and the upper squeezing roller 13 to rise through the vertical sliding rod 11 and the telescopic spring 14. After the upper squeezing roller 13 rises, the distance between the upper squeezing roller 13 and the lower squeezing roller 2 is increased, which is convenient for the non-woven fabric to pass through. When squeezing and removing water from the non-woven fabric, the power push rod 9 starts to work, and the telescopic end of the power push rod 9 extends into and drives the lifting top plate 10 and the upper squeezing roller 13 to descend, and the upper squeezing roller 13 and the lower squeezing roller 2 squeeze the non-woven fabric. During squeezing, the vertical sliding rod 11 can slide on the lifting top plate 10, and the lifting bracket 12 and the upper squeezing roller 13 are buffered by the telescopic spring 14. The silicone pad 15 on the lower squeezing roller 2 and the upper squeezing roller 13 can fully contact the non-woven fabric, which can fully squeeze the non-woven fabric and initially squeeze out the moisture in the non-woven fabric, which is convenient for subsequent drying.

[0043] Refer to the instruction manual Figure 1 , Instruction Manual Figure 3 And the instruction manual Figure 5 The hot air drying section 6 includes a first hollow roller 16 rotatably connected to the drying box body 1, a second hollow roller 17 rotatably connected to the drying box body 1, the second hollow roller 17 is located on one side of the first hollow roller 16, a plurality of air outlet holes 18 are provided on the first hollow roller 16 and the second hollow roller 17, one end of the first hollow roller 16 and the second hollow roller 17 penetrates and extends out of the drying box body 1, a turbine 19 is installed at one end of the first hollow roller 16 and the second hollow roller 17, and the first hollow roller 16 and the second hollow roller 17 are provided with a plurality of air outlet holes 18. 17 The other end is connected with a hollow rotating rod 20, a rotating joint 21 is installed on the drying box body 1, the hollow rotating rod 20 penetrates the drying box body 1 and is connected with the rotating joint 21, a hot air blower 22 is installed at the rear of the drying box body 1, a shunt pipe 23 is installed at the air outlet of the hot air blower 22, one end of the shunt pipe 23 is connected with the rotating joint 21, a solenoid valve 60 is arranged on the shunt pipe 23, an air inlet dehumidification pipe 24 is installed at the air inlet of the hot air blower 22, and two auxiliary rollers 25 are rotatably connected in the drying box body 1.

[0044] Specifically in practical applications, the non-woven fabric passes over the first hollow roller 16 and the second hollow roller 17, and passes under the two auxiliary rollers 25. The non-woven fabric is S-shaped. During drying, the first hollow roller 16 and the second hollow roller 17 rotate, and the first hollow roller 16 and the second hollow roller 17 drive the hollow rotating rod 20 to rotate. The hollow rotating rod 20 drives one end of the rotary joint 21 to rotate, and the end of the rotary joint 21 connected to the shunt pipe 23 does not rotate. The hot air blower 22 starts to work, the solenoid valve 60 is opened, the solenoid valve 55 is closed, and the hot air blower 22 starts to work. The generated hot air enters the first hollow roller 16 and the second hollow roller 17 through the diversion pipe 23, the rotary joint 21 and the hollow rotating rod 20, and the hot air can heat the first hollow roller 16 and the second hollow roller 17. The non-woven fabric contacts the first hollow roller 16 and the second hollow roller 17, and the heat on the surface of the first hollow roller 16 and the second hollow roller 17 dries the non-woven fabric. At the same time, the hot air in the first hollow roller 16 and the second hollow roller 17 is blown out through the air outlet 18, and the hot air is blown on the non-woven fabric to dry it, thereby reducing energy consumption and improving the drying effect.

[0045] Refer to the instruction manual Figure 1 , Instruction Manual Figure 4 And the instruction manual Figure 5 , a hot air circulation mechanism is opened in a vertical slide groove 26 inside the drying box body 1, the vertical slide groove 26 is located above the first hollow roller 16, a lifting slider 27 is slidably connected in the vertical slide groove 26, a semicircular plate 28 is installed between the lifting sliders 27, an L-shaped connecting rod 29 is installed on one side of the lifting top plate 10, the vertical arm end of the L-shaped connecting rod 29 is fixedly connected to the top of the semicircular plate 28, a plurality of exhaust holes 30 are provided on one side of the semicircular plate 28, an air suction hood 31 is installed on the semicircular plate 28, the air suction hood 31 is located on the exhaust holes 30, a suction fan 32 is installed on the top of the drying box body 1, a tin foil hose 33 is installed at the suction end of the suction fan 32, one end of the tin foil hose 33 passes through the drying box body 1 and is fixedly connected to the suction hood 31, an air outlet pipe 34 is installed at the air outlet end of the suction fan 32, and one end of the air outlet pipe 34 is fixedly connected to the air inlet dehumidification pipeline 24.

[0046] Specifically in practical applications, when the lifting and extruding part 5 is lifted or lowered, the semicircular plate 28 is driven to lift or lower through the L-shaped connecting rod 29, and the semicircular plate 28 drives the lifting slider 27 to lift or lower along the vertical slide groove 26. The lifting slider 27 and the vertical slide groove 26 play a guiding role, and the semicircular plate 28 is lifted and away from the first hollow roller 16, so that the non-woven fabric can pass through the first hollow roller 16. When the non-woven fabric is dried, the semicircular plate 28 is located near the first hollow roller 16. During drying, the suction fan 32 starts to work, and the water vapor generated during drying is gathered through the semicircular plate 28. The water vapor enters the suction hood 31 through the exhaust hole 30 on the semicircular plate 28. The suction fan 32 sucks out the water vapor through the tin foil hose 33, and then discharges the water vapor and hot air into the air inlet dehumidification pipe 24 through the air outlet pipe 34, so as to prevent the water vapor from falling on the non-woven fabric again, thereby improving the drying effect and recycling the hot air.

[0047] Refer to the instruction manual Figure 6 , Instruction Manual Figure 7 And the instruction manual Figure 8 The dehumidification unit 7 includes a plurality of hollow drums 35 arranged in the air inlet dehumidification duct 24, a plurality of groups of air permeable holes 36 are arranged on the hollow drum 35, granular desiccant is filled in the hollow drum 35, one end of the hollow drum 35 is connected with a hollow output rod 37, the hollow output rod 37 penetrates the air inlet dehumidification duct 24 and is rotatably connected with the air inlet dehumidification duct 24, a circular hole is arranged at the center of the other end of the hollow drum 35, a linear bearing 38 is installed in the circular hole, and a hollow exhaust pipe is mounted on the linear bearing 38 39, the hollow exhaust pipe 39 penetrates the air inlet dehumidification pipe 24 and is movably connected to the air inlet dehumidification pipe 24, a driven gear 40 is mounted on the hollow output rod 37, the driven gear 40 is fixedly connected to the hollow output rod 37, a driving motor 41 is installed on the air inlet dehumidification pipe 24, a driving gear 42 is installed on the output end of the driving motor 41, the driving gear 42 is connected to the driven gear 40 through a chain 43, and a filter screen 44 is installed in the hollow output rod 37 and the hollow exhaust pipe 39.

[0048] Specifically in practical applications, the driving motor 41 starts to work, and the output end of the driving motor 41 drives the driving gear 42 to rotate, and the driving gear 42 drives the driven gear 40 to rotate through the chain 43, and the driven gear 40 drives the hollow drum 35 to rotate through the hollow output rod 37. When the hollow drum 35 rotates, one end of the hollow drum 35 rotates around the hollow exhaust pipe 39. When the hollow drum 35 rotates, the granular desiccant inside the hollow drum 35 rolls, and the air and water vapor entering the air inlet dehumidification pipeline 24 enter the hollow drum 35 through the air permeable holes 36. The air and water vapor can fully contact with the granular desiccant, and the water vapor and the outside air can be dehumidified, and the dry air can enter the hot air blower 22. After the water vapor discharged from the drying box 1 is dehumidified, the hot air can enter the drying box 1 through the hot air blower 22 to dry the non-woven fabric, thereby avoiding heat loss, improving the heating efficiency of the air, and reducing energy consumption.

[0049] Refer to the instruction manual Fig. 9 As shown in the drawings of the specification, the sealed drying section 8 includes a plurality of sealing rings 45 slidably connected in the hollow drum 35, the outer wall of the sealing ring 45 is slidably connected to the inner wall of the hollow drum 35, a transverse connecting rod 46 is installed between the sealing rings 45, one end of the hollow exhaust pipe 39 is located in the left sealing ring 45, a fixed bearing 47 is installed at one end of the hollow exhaust pipe 39, a cross connecting rod 48 is installed on the outer ring of the fixed bearing 47, the cross connecting rod 48 is fixedly connected to the inner wall of the left sealing ring 45, and a hollow exhaust pipe 39 is sleeved with A connecting piece 49 is fixedly connected to the outer wall of the hollow exhaust pipe 39, a fixing rod 50 is installed between the connecting pieces 49, an electric push rod 51 is installed on the top of the air inlet dehumidification pipe 24, a push rod 52 is installed on the telescopic end of the electric push rod 51, one end of the push rod 52 is fixedly connected to the connecting piece 49, a rotating joint 53 is installed at one end of the hollow output rod 37, a gas pipeline 54 is connected to the rotating joint 53, one end of the gas pipeline 54 is fixedly connected to the air outlet of the hot air blower 22, and an electromagnetic valve 55 is provided on the gas pipeline 54.

[0050] Specifically, in practical applications, when the granular desiccant in the hollow drum 35 is dehumidified and dried, the electric push rod 51 starts to work, and the extension and contraction of the electric push rod 51 drives the push rod 52 to move, and the push rod 52 drives the hollow exhaust pipe 39 to move toward the inside of the hollow drum 35 through the connecting piece 49. The hollow exhaust pipes 39 are connected by the connecting piece 49 and the fixed rod 50, and can drive multiple hollow exhaust pipes 39 to move at the same time. One end of the hollow exhaust pipe 39 is fixedly connected to the leftmost sealing ring 45 through the fixed bearing 47 and the cross connecting rod 48. The hollow exhaust pipe 39 moves toward the inside of the hollow drum 35 to drive the sealing ring 45 to move. The sealing rings 45 are connected by the transverse connecting rod 46. Multiple sealing rings 45 can move at the same time. The hot air generated by the hot air blower 22 enters the hollow drum 35 through the gas pipeline 54, the rotary joint 53 and the hollow output rod 37. At the same time, the hollow drum 35 drives the granular desiccant inside to roll, so that the granular desiccant can be fully contacted with the hot air. The hot air dries the granular desiccant and eliminates the water vapor in the granular desiccant. The granular desiccant can be reused, which improves the dehumidification effect. The water vapor in the hollow drum 35 is discharged through the hollow exhaust pipe 39. When the hollow output rod 37 rotates, the end of the rotary joint 53 connected to the hollow output rod 37 rotates, and the end of the rotary joint 53 connected to the gas pipeline 54 does not rotate.

[0051] Refer to the instruction manual Figure 3 One end of the lower squeezing roller 2 extends through the drying box body 1, and a turbine 2 56 is installed at one end of the lower squeezing roller 2. A rotating motor 57 is installed on the drying box body 1. A rotating bracket 58 is installed at the end of the drying box body 1 away from the rotating motor 57. A worm 59 is installed at the output end of the rotating motor 57. The end of the worm 59 away from the rotating motor 57 is rotatably connected to the rotating bracket 58. The turbine 2 56, the turbine 1 19 and the worm 59 are meshed with each other.

[0052] Specifically in practical applications, during drying, the rotating motor 57 starts to work, and the output end of the rotating motor 57 drives the worm 59 to rotate on the rotating bracket 58. The worm 59 is meshed with turbine 2 56 and turbine 1 19. The worm 59 drives turbine 2 56 and turbine 1 19 to rotate. Turbine 2 56 and turbine 1 19 drive the lower extrusion roller 2, the first hollow roller 16 and the second hollow roller 17 to rotate. The lower extrusion roller 2 and the hot air drying section 6 can be driven to rotate by one motor.

[0053] Refer to the instruction manual Figure 8 And the instruction manual Fig. 9There are four hollow drums 35, which are arranged obliquely from top to bottom and are located directly below the air inlet dehumidification duct 24. There are five groups of air holes 36, each group of air holes 36 has two rows and is distributed in a ring shape on the hollow drum 35, and there is a gap between each group of air holes 36.

[0054] Specifically in actual application, the four hollow drums 35 are in contact with each other, and air enters the air inlet dehumidification duct 24 through the air permeable holes 36 on the hollow drums 35 .

[0055] Refer to the instruction manual Fig. 9 There are five sealing rings 45 and they are located in the gaps between the five groups of air-permeable holes 36 .

[0056] Specifically in practical applications, when drying non-woven fabrics, outside air needs to enter the air inlet dehumidification duct 24. At this time, the sealing ring 45 is located in the gap between the five groups of air holes 36, and outside air can enter through the air holes 36. When drying the granular desiccant, the sealing ring 45 slides to the position of the air holes 36 for sealing, thereby avoiding the dispersion of hot air and improving the drying effect.

[0057] The technical features of the above-described embodiments may be arbitrarily combined. To make the description concise, not all possible combinations of the technical features in the above-described embodiments are described. However, as long as there is no contradiction in the combination of these technical features, they should be considered to be within the scope of this specification.

[0058] The above-mentioned embodiments only express several implementation methods of the present invention, and the descriptions thereof are relatively specific and detailed, but they cannot be understood as limiting the scope of the invention patent. It should be pointed out that, for ordinary technicians in this field, several variations and improvements can be made without departing from the concept of the present invention, and these all belong to the protection scope of the present invention. Therefore, the protection scope of the patent of the present invention shall be subject to the attached claims.

[0059] In the description of the present invention, it should be understood that the terms "center", "longitudinal", "lateral", "length", "width", "thickness", "up", "down", "front", "back", "left", "right", "vertical", "horizontal", "top", "bottom", "inside", "outside", "clockwise", "counterclockwise", "axial", "radial", "circumferential" and the like indicate orientations or positional relationships based on the orientations or positional relationships shown in the accompanying drawings, and are only for the convenience of describing the present invention and simplifying the description, and do not indicate or imply that the referred device or element must have a specific orientation, be constructed and operated in a specific orientation, and therefore should not be understood as limiting the present invention.

[0060] In addition, the terms "first" and "second" are used for descriptive purposes only and should not be understood as indicating or implying relative importance or implicitly indicating the number of the indicated technical features. Therefore, the features defined as "first" and "second" may explicitly or implicitly include at least one of the features. In the description of the present invention, the meaning of "plurality" is at least two, such as two, three, etc., unless otherwise clearly and specifically defined.

[0061] In the present invention, unless otherwise clearly specified and limited, the terms "installed", "connected", "connected", "fixed" and the like should be understood in a broad sense, for example, it can be a fixed connection, a detachable connection, or an integral connection; it can be a mechanical connection or an electrical connection; it can be a direct connection or an indirect connection through an intermediate medium, it can be the internal connection of two elements or the interaction relationship between two elements, unless otherwise clearly defined. For ordinary technicians in this field, the specific meanings of the above terms in the present invention can be understood according to specific circumstances.

[0062] In the present invention, unless otherwise clearly specified and limited, a first feature being "above" or "below" a second feature may mean that the first and second features are in direct contact, or the first and second features are in indirect contact through an intermediate medium. Moreover, a first feature being "above", "above" or "above" a second feature may mean that the first feature is directly above or obliquely above the second feature, or simply means that the first feature is higher in level than the second feature. A first feature being "below", "below" or "below" a second feature may mean that the first feature is directly below or obliquely below the second feature, or simply means that the first feature is lower in level than the second feature.

[0063] It should be noted that when an element is referred to as being "fixed to" or "disposed on" another element, it may be directly on the other element or there may be a central element. When an element is considered to be "connected to" another element, it may be directly connected to the other element or there may be a central element at the same time. The terms "vertical", "horizontal", "upper", "lower", "left", "right" and similar expressions used herein are for illustrative purposes only and are not intended to be the only implementation method.

Claims

1. A high-efficiency drying device for nonwoven fabric production, comprising a drying box (1), It is characterized in that The drying box (1) is provided with a drainage and drying mechanism, the drying box (1) is provided with a hot air circulation mechanism, and the hot air circulation mechanism is provided with an air dehumidification mechanism; The drainage and drying mechanism comprises a lower squeezing roller (2), a water collecting box (3), a drainage pipe (4), a lifting squeezing part (5) and a hot air drying part (6); the lower squeezing roller (2) is rotatably connected to one side of the interior of the drying box (1); the water collecting box (3) is installed in the drying box (1); the drainage pipe (4) is installed on one side of the water collecting box (3); the drainage pipe (4) extends through the drying box (1); the lifting squeezing part (5) is located above the lower squeezing roller (2); and the hot air drying part (6) is located on one side of the lower squeezing roller (2); The air dehumidification mechanism comprises a dehumidification section (7) and a sealed drying section (8), wherein the dehumidification section (7) dehumidifies the air entering the drying box (1), and the sealed drying section (8) dries the inside of the dehumidification section (7); A hot air blower (22) is installed at the rear of the drying box (1), and an air inlet dehumidification pipeline (24) is installed at the air inlet of the hot air blower (22); The dehumidification section (7) comprises a plurality of hollow drums (35) arranged in the air inlet dehumidification duct (24), the hollow drums (35) being provided with a plurality of groups of small air permeable holes (36), the hollow drums (35) being filled with granular desiccant, one end of the hollow drum (35) being connected with a hollow output rod (37), the hollow output rod (37) penetrating the air inlet dehumidification duct (24) and being rotatably connected to the air inlet dehumidification duct (24), a circular hole being provided at the center of the other end of the hollow drum (35), a linear bearing (38) being installed in the circular hole, a hollow exhaust pipe (39) being sleeved on the linear bearing (38), the hollow exhaust pipe (39) penetrating the air inlet dehumidification duct (24) and being movably connected to the air inlet dehumidification duct (24); The sealed drying section (8) comprises a plurality of sealing rings (45) slidably connected in the hollow drum (35); the outer wall of the sealing ring (45) is slidably connected to the inner wall of the hollow drum (35); a transverse connecting rod (46) is installed between the sealing rings (45); one end of the hollow exhaust pipe (39) is located in the sealing ring (45) on the left; a fixed bearing (47) is installed at one end of the hollow exhaust pipe (39); a cross connecting rod (48) is installed on the outer ring of the fixed bearing (47); the cross connecting rod (48) is fixedly connected to the inner wall of the sealing ring (45) on the left; and a connecting piece ( 49), the connecting piece (49) is fixedly connected to the outer wall of the hollow exhaust pipe (39), a fixing rod (50) is installed between the connecting pieces (49), an electric push rod (51) is installed on the top of the air inlet dehumidification pipe (24), a push rod (52) is installed on the telescopic end of the electric push rod (51), one end of the push rod (52) is fixedly connected to the connecting piece (49), a rotating joint (53) is installed on one end of the hollow output rod (37), a gas pipeline (54) is connected to the rotating joint (53), one end of the gas pipeline (54) is fixedly connected to the air outlet of the hot air blower (22), and an electromagnetic valve (55) is provided on the gas pipeline (54).

2. According to claim 1, a high-efficiency drying device for nonwoven fabric production, It is characterized in that The lifting and squeezing part (5) comprises a power push rod (9) installed in the drying box body (1), the telescopic end of the power push rod (9) is downward, a lifting top plate (10) is installed on the telescopic end of the power push rod (9), a vertical slide rod (11) is provided on the lifting top plate (10), the vertical slide rod (11) passes through the lifting top plate (10) and is slidably connected to the lifting top plate (10), a lifting bracket (12) is installed at the bottom end of the vertical slide rod (11), an upper squeezing roller (13) is rotatably connected to the lifting bracket (12), the upper squeezing roller (13) is located above the lower squeezing roller (2), a telescopic spring (14) is sleeved on the vertical slide rod (11), one end of the telescopic spring (14) is fixedly connected to the lifting top plate (10), and the other end of the telescopic spring (14) is fixedly connected to the lifting bracket (12), and a silicone soft pad (15) is sleeved on the lower squeezing roller (2) and the upper squeezing roller (13).

3. According to claim 1, a high-efficiency drying device for nonwoven fabric production, It is characterized in that The hot air drying section (6) comprises a first hollow roller (16) rotatably connected to the drying box (1), a second hollow roller (17) rotatably connected to the drying box (1), the second hollow roller (17) being located on one side of the first hollow roller (16), a plurality of air outlet holes (18) being provided on the first hollow roller (16) and the second hollow roller (17), one end of the first hollow roller (16) and the second hollow roller (17) extending through the drying box (1), and a worm gear being installed at one end of the first hollow roller (16) and the second hollow roller (17). One (19), the other ends of the first hollow roller (16) and the second hollow roller (17) are connected to a hollow rotating rod (20), a rotating joint (21) is installed on the drying box (1), the hollow rotating rod (20) passes through the drying box (1) and is connected to the rotating joint (21), the air outlet of the hot air blower (22) is installed with a shunt pipe (23), one end of the shunt pipe (23) is connected to the rotating joint (21), a solenoid valve (60) is provided on the shunt pipe (23), and two auxiliary rollers (25) are rotatably connected in the drying box (1).

4. According to claim 2, a high-efficiency drying device for nonwoven fabric production, It is characterized in that The hot air circulation mechanism comprises a vertical slide groove (26) opened inside the drying box body (1), the vertical slide groove (26) is located above the first hollow roller (16), a lifting slider (27) is slidably connected in the vertical slide groove (26), a semicircular plate (28) is installed between the lifting sliders (27), an L-shaped connecting rod (29) is installed on one side of the lifting top plate (10), the vertical arm end of the L-shaped connecting rod (29) is fixedly connected to the top of the semicircular plate (28), and a plurality of exhaust holes are provided on one side of the semicircular plate (28). (30), an air suction hood (31) is installed on the semicircular plate (28), and the air suction hood (31) is located on the exhaust hole (30). A suction fan (32) is installed on the top of the drying box (1), and a tin foil hose (33) is installed on the air suction end of the suction fan (32), and one end of the tin foil hose (33) passes through the drying box (1) and is fixedly connected to the air suction hood (31). An air outlet pipe (34) is installed on the air outlet end of the suction fan (32), and one end of the air outlet pipe (34) is fixedly connected to the air inlet dehumidification pipe (24).

5. According to claim 3, a high-efficiency drying device for nonwoven fabric production, It is characterized in that One end of the lower squeezing roller (2) extends through the drying box (1); a worm gear 2 (56) is mounted on one end of the lower squeezing roller (2); a rotating motor (57) is mounted on the drying box (1); a rotating bracket (58) is mounted on the end of the drying box (1) away from the rotating motor (57); a worm (59) is mounted on the output end of the rotating motor (57); an end of the worm (59) away from the rotating motor (57) is rotatably connected to the rotating bracket (58); and the worm gear 2 (56), the worm gear 1 (19) and the worm (59) are meshed with each other.

6. A high-efficiency drying device for nonwoven fabric production according to claim 1, It is characterized in that Four hollow rotating drums (35) are provided, and the four hollow rotating drums (35) are arranged obliquely from top to bottom and are located directly below the air inlet dehumidification duct (24). Five groups of air permeable holes (36) are provided, and each group of air permeable holes (36) is provided with two rows and distributed in a ring shape on the hollow rotating drum (35), and gaps are provided between each group of air permeable holes (36).

7. A high-efficiency drying device for nonwoven fabric production according to claim 6, It is characterized in that Five sealing rings (45) are provided and are located in the gaps between the five groups of air-permeable holes (36).

8. According to claim 1, a high-efficiency drying device for nonwoven fabric production, It is characterized in that A driven gear (40) is sleeved on the hollow output rod (37), and the driven gear (40) is fixedly connected to the hollow output rod (37). A driving motor (41) is installed on the air inlet dehumidification pipe (24), and a driving gear (42) is installed on the output end of the driving motor (41). The driving gear (42) and the driven gear (40) are connected via a chain (43). A filter screen (44) is installed in the hollow output rod (37) and the hollow exhaust pipe (39).

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