Wood pulp sponge drying device

Abstract

The invention provides a wood pulp sponge drying device, and belongs to the technical field of wood pulp sponge production equipment.The wood pulp sponge drying device comprises a net type conveying belt and a plurality of drying boxes, the multiple drying boxes are sequentially arranged above the net type conveying belt in the conveying direction of the net type conveying belt, and microwave heating modules used for microwave heating are arranged on the drying boxes; the pressing pipe is arranged in the drying box, the air exhaust holes are formed in the pressing pipe, the wood pulp sponge is extruded into the gap between the pressing pipe and the net type conveying belt along with rotation of the pressing pipe and penetrates through the gap, at the moment, the thickness of the wood pulp sponge is reduced, high-temperature moisture in the wood pulp sponge is extracted through the air exhaust holes, and due to the fact that the wood pulp sponge is extruded to be thinned by the pressing pipe, the moisture in the wood pulp sponge is reduced. High-temperature moisture in the wood pulp sponge can be quickly extracted, so that deformation of fibers in the wood pulp sponge caused by high-temperature accumulation is avoided.

Description

Technical Field

[0001] The invention belongs to the technical field of wood pulp sponge production equipment, and specifically refers to a wood pulp sponge drying device. Background Art

[0002] Wood pulp sponge is a sponge material made of wood pulp. This material gives wood pulp sponge good softness and water absorption. The production process of wood pulp sponge mainly includes: pulping, filtering, stirring, casting, curing, drying, cutting and shaping. Among them, drying is to put the cured sponge into the drying room for drying to evaporate the water in the sponge. By adjusting the drying temperature and time, the softness and water absorption of the sponge can be controlled. The sponge after drying is more stable and easy to cut and shape.

[0003] The drying of wood pulp sponge mainly includes infrared heating drying and microwave heating drying. Among them, microwave heating makes the heated material itself become a heating body, which does not require a heat conduction process. Microwave heating can make the electromagnetic waves penetrate the inside and outside of the object evenly to generate heat energy, and the heating uniformity is good. The sponge adopts a foaming process and its thickness is relatively thick. Therefore, wood pulp sponge is more suitable for microwave heating drying.

[0004] Microwave heating can heat the inside and outside of the sponge at the same time. During heating, since the sponge is made using a foaming process and is relatively thick, the high-temperature water vapor generated inside the sponge has a long discharge path and is difficult to discharge quickly, causing the temperature inside the sponge to accumulate and rise. Under high temperatures, the fibers of the sponge may shrink, causing the sponge to deform. Summary of the invention

[0005] In view of the above situation, in order to overcome the defects of the prior art, the present invention provides a wood pulp sponge drying device, which at least partially solves the above problems.

[0006] The technical solution adopted by the present invention is as follows: The present invention proposes a wood pulp sponge drying device, comprising a mesh conveyor belt and a plurality of drying boxes, wherein the plurality of drying boxes are sequentially arranged above the mesh conveyor belt along the conveying direction of the mesh conveyor belt, and each of the drying boxes is provided with a microwave heating module for microwave heating; A plurality of pressing pipes are evenly distributed above the mesh conveyor belt along the conveying direction of the mesh conveyor belt, the pressing pipes are installed on the inner side of the drying box and arranged perpendicular to the conveying direction of the mesh conveyor belt, and a gap for compressing the wood pulp sponge is formed between the pressing pipes and the conveying surface of the mesh conveyor belt; The pressure pipe is provided with a plurality of evenly distributed air extraction holes, one end of the pressure pipe is connected to an external air extraction device through a pipeline, so that negative pressure is formed inside the pressure pipe, and high-temperature moisture inside the wood pulp sponge is extracted through the air extraction holes; The other end of the pressing tube is provided with a driving component for driving the pressing tube to rotate, and the rotation direction of the pressing tube is consistent with the conveying direction of the wood pulp sponge.

[0007] Furthermore, a plurality of ozone delivery pipes corresponding to the positions of the pressure pipes are provided below the mesh conveyor belt, and the ozone delivery pipes are connected to an external ozone generator through pipelines, so that the ozone delivered by the ozone delivery pipes can be sucked by the pressure pipes through the wood pulp sponge.

[0008] Furthermore, a connecting pipe is provided at one end of the pressure pipe connected to the exhaust device, and the connecting pipe and the pressure pipe are coaxially fixed to each other. One end of the connecting pipe is connected to the inside of the pressure pipe, and the other end of the connecting pipe extends to the outside of the drying box and is rotatably connected to the drying box through a bearing. The external exhaust device is connected to the pressure pipe through the connecting pipe.

[0009] Furthermore, the driving component includes a rotating shaft and a driving motor, the rotating shaft and the pressure tube are coaxially fixed to each other, the driving motor is fixed on the outside of the drying box, and the output end of the driving motor extends into the drying box and is connected to the rotating shaft through a transmission assembly.

[0010] Furthermore, the transmission assembly includes a passive gear and a driving gear, the passive gear and the rotating shaft are coaxially fixed to each other, the driving gear and the output shaft of the driving motor are coaxially fixed to each other, and the passive gear and the driving gear are meshed with each other.

[0011] Furthermore, a baffle cover is provided on the outer side of the pressing tube, and the baffle cover is attached to the outer wall of the pressing tube and can slide along the circle of the pressing tube to block the air suction hole of the pressing tube on the side of the feeding direction, so that the wood pulp sponge is separated from the pressing tube, and an adjustment handle for adjusting the baffle cover is provided at one end of the baffle cover.

[0012] Furthermore, a stripping plate for guiding the wood pulp sponge to separate is provided on one side of the baffle cover close to the mesh conveyor belt.

[0013] Furthermore, the adjustment handle includes a fixed shaft and a sleeve mounted on the fixed shaft, the fixed shaft is coaxially arranged with the pressure tube, the fixed shaft is fixed to the outside of the drying box, a slide groove is provided on the drying box, a connecting frame slides in the slide groove, and both ends of the connecting frame are respectively connected to the baffle cover and the sleeve, and a locking component is provided on the sleeve.

[0014] Furthermore, the locking component includes a bolt, which radially penetrates the shaft sleeve and is threadedly connected to the shaft sleeve.

[0015] Furthermore, an air hood and an air duct are provided above the drying box. There are multiple air hoods, which are respectively fixed on the top of the drying box. The tops of the multiple air hoods are connected to the air ducts, and the air ducts are connected to an external air fan through pipelines.

[0016] The beneficial effects achieved by the present invention using the above structure are as follows: 1. A pressure pipe is set in the drying box, and an exhaust hole is opened on the pressure pipe. As the pressure pipe rotates, the wood pulp sponge is squeezed into the gap between the pressure pipe and the mesh conveyor belt, and passes through the gap. At this time, the thickness of the wood pulp sponge becomes thinner, and the high-temperature moisture inside the wood pulp sponge is extracted through the exhaust hole. Since the wood pulp sponge is squeezed and thinned by the pressure pipe, the high-temperature moisture inside the wood pulp sponge can be quickly extracted to avoid high temperature accumulation and internal fiber deformation of the wood pulp sponge.

[0017] 2. An ozone delivery pipe is arranged below the mesh conveyor belt, and the ozone delivery pipe is located directly below the pressure pipe. The wood pulp sponge here is compressed and thinned by the pressure pipe, and the path for ozone to penetrate the wood pulp sponge is shortened. The suction force generated by the pressure pipe is used to allow the ozone delivered by the ozone delivery pipe to be sucked upward, pass through the wood pulp sponge, and sterilize the wood pulp sponge. BRIEF DESCRIPTION OF THE DRAWINGS

[0018] Figure 1 A structural schematic diagram of a wood pulp sponge drying device proposed in an embodiment of the present invention; Figure 2 A schematic diagram of the structure of a drying box in a wood pulp sponge drying device proposed in an embodiment of the present invention; Figure 3 A top view of a medium-pressure pipe and a mesh conveyor belt of a wood pulp sponge drying device proposed in an embodiment of the present invention; Figure 4 for Figure 3 The enlarged schematic diagram at A in the middle; Figure 5 A schematic diagram of the internal structure of a drying box in a wood pulp sponge drying device proposed in an embodiment of the present invention; Figure 6 A schematic diagram of the position distribution of a medium-pressure pipe and an ozone delivery pipe in a wood pulp sponge drying device proposed in an embodiment of the present invention; Figure 7 A schematic structural diagram of a medium-pressure pipe of a wood pulp sponge drying device proposed in an embodiment of the present invention; Figure 8 for Figure 7 The enlarged schematic diagram of point B in the middle; Fig. 9 A side view of a wood pulp sponge drying device proposed in an embodiment of the present invention; Fig.10 for Fig. 9Enlarged schematic diagram at point C in the middle.

[0019] Among them, 1. mesh conveyor belt; 2. drying box; 21. microwave heating module; 22. observation window; 201. slideway; 3. induced draft hood; 31. induced draft duct; 4. pressure pipe; 41. exhaust hole; 42. connecting pipe; 43. rotating shaft; 431. passive gear; 44. driving motor; 441. driving gear; 5. baffle cover; 51. stripping plate; 6. adjusting handle; 61. fixed shaft; 62. bushing; 63. bolt; 64. connecting frame; 7. ozone delivery pipe.

[0020] The accompanying drawings are used to provide further understanding of the present invention and constitute a part of the specification. They are used to explain the present invention together with the embodiments of the present invention and do not constitute a limitation of the present invention. DETAILED DESCRIPTION

[0021] The technical solutions in the embodiments of the present invention will be clearly and completely described below in conjunction with the drawings in the embodiments of the present invention. Obviously, the described embodiments are only part of the embodiments of the present invention, rather than all the embodiments; based on the embodiments of the present invention, all other embodiments obtained by ordinary technicians in this field without making creative work are within the scope of protection of the present invention.

[0022] In the description of the present invention, it should be understood that terms such as “upper”, “lower”, “front”, “back”, “left”, “right”, “top”, “bottom”, “inside” and “outside” indicating directions or positional relationships are based on the directions or positional relationships shown in the accompanying drawings, and are only for the convenience of describing the present invention and simplifying the description, rather than indicating or implying that the device or element referred to must have a specific direction, be constructed and operated in a specific direction, and therefore should not be understood as limiting the present invention.

[0023] like Figure 1 and Figure 2 As shown, the present invention proposes a wood pulp sponge drying device, including a mesh conveyor belt 1 and a drying box 2. A plurality of drying boxes 2 are sequentially arranged above the mesh conveyor belt 1 along the conveying direction of the mesh conveyor belt 1, and each drying box 2 is provided with a microwave heating module 21 for microwave heating.

[0024] The wood pulp sponge to be dried is placed on the discharge end of the mesh conveyor belt 1 and is transported by the mesh conveyor belt 1 so that the wood pulp sponge passes through multiple drying boxes 2 in sequence. The microwave heating module 21 on the drying box 2 is used to perform microwave heating on the wood pulp sponge transported on the mesh conveyor belt 1, so that the moisture inside the wood pulp sponge turns into water vapor and escapes outward, thereby reducing the water content of the wood pulp sponge, thereby achieving the purpose of drying.

[0025] Furthermore, an induced draft hood 3 and an induced draft duct 31 are provided above the drying box 2. A plurality of induced draft hoods 3 are provided and are fixed on the top of the drying box 2 respectively. The tops of the plurality of induced draft hoods 3 are connected to the induced draft duct 31. The induced draft duct 31 is connected to an external induced draft fan through a pipeline. The induced draft fan draws air from the inside of the induced draft hood 3 through the induced draft duct 31, so that a negative pressure is formed inside the induced draft hood 3. The high-temperature moisture formed by heating is gathered into the inside of the induced draft hood 3 under the action of the negative pressure suction force, and then is drawn out by the induced draft duct 31 to discharge the moisture inside the drying box 2, thereby preventing the moisture from flowing back into the wood pulp sponge.

[0026] Furthermore, an observation window 22 covered by transparent glass is provided on one side of the drying box 2, through which the drying condition of the wood pulp sponge can be observed, so as to adjust the power of the microwave heating module 21 in time to avoid over-drying or incomplete drying.

[0027] Combination Figure 1 , Figure 2 , Figure 3 and Figure 6 As shown, the present invention also includes a plurality of pressing pipes 4, which are evenly distributed above the mesh conveyor belt 1 along the conveying direction of the mesh conveyor belt 1, and the pressing pipes 4 are installed on the inner side of the drying box 2 and arranged perpendicular to the conveying direction of the mesh conveyor belt 1, and a gap for compressing the wood pulp sponge is formed between the pressing pipes 4 and the conveying surface of the mesh conveyor belt 1, and a driving component for driving the pressing pipe 4 to rotate is provided at the other end of the pressing pipe 4, and the rotation direction of the pressing pipe 4 is consistent with the conveying direction of the wood pulp sponge.

[0028] When the mesh conveyor belt 1 conveys the wood pulp sponge to the pressing pipe 4, as the pressing pipe 4 rotates, the wood pulp sponge is squeezed into the gap between the pressing pipe 4 and the mesh conveyor belt 1, and passes through the gap (such as Figure 6 As shown in the figure, at this time, the thickness of the wood pulp sponge becomes thinner, and the high-temperature moisture generated inside the wood pulp sponge due to microwave heating can escape more easily.

[0029] Furthermore, a plurality of evenly distributed exhaust holes 41 are provided on the pressure tube 4, and one end of the pressure tube 4 is connected to an external exhaust device through a pipeline. The external exhaust device extracts the air inside the pressure tube 4 through the pipeline, so that a negative pressure is formed inside the pressure tube 4. When the pressure tube 4 contacts the wood pulp sponge, the high-temperature moisture inside the wood pulp sponge can be extracted through the exhaust holes 41. Since the wood pulp sponge is squeezed and thinned by the pressure tube 4, the high-temperature moisture inside the wood pulp sponge can be quickly extracted, thereby avoiding deformation of the internal fibers of the wood pulp sponge due to high temperature accumulation.

[0030] Thus, during drying, the external exhaust device extracts the air inside the pressure pipe 4 through the pipeline, so that negative pressure is formed inside the pressure pipe 4, and the mesh conveyor belt 1 conveys the wood pulp sponge through multiple pressure pipes 4 in sequence. At the pressure pipe 4, as the pressure pipe 4 rotates, the wood pulp sponge is squeezed into the gap between the pressure pipe 4 and the mesh conveyor belt 1, and passes through the gap (such as Figure 6 As shown), at this time, the thickness of the wood pulp sponge becomes thinner. At the same time, the pressing tube 4 contacts the wood pulp sponge and extracts the high-temperature moisture inside the wood pulp sponge through the suction hole 41. Since the wood pulp sponge is squeezed and thinned by the pressing tube 4, the high-temperature moisture inside the wood pulp sponge can be quickly extracted to avoid high temperature accumulation and deformation of the internal fibers of the wood pulp sponge.

[0031] Combination Figure 1 , Figure 2 and Figure 7 As shown, a connecting pipe 42 is provided at one end of the pressure pipe 4 connected to the exhaust device. The connecting pipe 42 and the pressure pipe 4 are coaxially fixed to each other. One end of the connecting pipe 42 is connected to the inside of the pressure pipe 4, and the other end of the connecting pipe 42 extends to the outside of the drying box 2 and is rotatably connected to the drying box 2 through a bearing. The external exhaust device is connected to the connecting pipes 42 of multiple pressure pipes 4 at the same time through pipelines, so that the external exhaust device can extract the gas inside multiple pressure pipes 4 at the same time, so that the pressure pipe 4 forms a negative pressure, and can dehumidify the continuously dried wood pulp sponge.

[0032] In a specific embodiment, during drying, the pressure pipe 4 and the connecting pipe 42 are in a state of continuous rotation. Therefore, a mechanical seal is used between the connecting pipe 42 and the connecting pipe of the external exhaust device to maintain the sealing of the connection while allowing the connecting pipe 42 to rotate continuously.

[0033] Combination Figure 3 , Figure 4 , Figure 7 and Figure 8 As shown, the driving component includes a rotating shaft 43 and a driving motor 44. The rotating shaft 43 and the pressure tube 4 are coaxially fixed to each other, and the rotating shaft 43 is rotatably connected to the inner side of the drying box 2 through a bearing. The driving motor 44 is fixed to the outer side of the drying box 2. The output end of the driving motor 44 extends into the drying box 2 and is transmission-connected to the rotating shaft 43 through a transmission assembly. The driving motor 44 drives the pressure tube 4 to rotate through the rotating shaft 43.

[0034] In an optional embodiment, the drive motor 44 adopts a servo motor, whose speed is controllable and can adjust the speed according to the conveying speed of the mesh conveyor belt 1, so that the rotation speed of the pressure tube 4 is consistent with the conveying speed of the mesh conveyor belt 1, avoiding friction damage to the wood pulp sponge due to speed difference.

[0035] In a specific embodiment, the transmission assembly includes a passive gear 431 and a driving gear 441. The passive gear 431 and the rotating shaft 43 are coaxially fixed to each other. The driving gear 441 and the output shaft of the driving motor 44 are coaxially fixed to each other, and the passive gear 431 and the driving gear 441 are meshed with each other. The driving motor 44 drives the driving gear 441 to rotate, and the driving gear 441 drives the passive gear 431 on the rotating shaft 43 to rotate, thereby driving the pressure tube 4 to rotate, and the gear transmission efficiency is high, and there will be no slippage.

[0036] Combination Figure 1 and Figure 6 As shown, a plurality of ozone delivery pipes 7 corresponding to the positions of the pressure pipes 4 are provided below the mesh conveyor belt 1, and the ozone delivery pipes 7 are connected to an external ozone generator through a pipeline, and the external ozone generator can deliver ozone to the drying box 2 through the ozone delivery pipes 7. Since the mesh conveyor belt 1 adopts a mesh belt, ozone can pass through the mesh conveyor belt 1 and contact the wood pulp sponge, and the wood pulp sponge is disinfected and sterilized by ozone; The ozone delivery pipes 7 are all distributed below the pressing pipes 4. The wood pulp sponge here is compressed and thinned by the pressing pipes 4, shortening the path for ozone to penetrate the wood pulp sponge. The suction force generated by the pressing pipes 4 is used to allow the ozone delivered by the ozone delivery pipes 7 to be sucked upward, penetrate the wood pulp sponge better, and sterilize more thoroughly.

[0037] Combination Figure 3 , Figure 4 , Figure 6 and Figure 7 As shown, a baffle 5 is provided on the outside of the pressing tube 4, which is fitted on the outer wall of the pressing tube 4 and can slide around the pressing tube 4. During drying, the baffle 5 is slid to the side of the pressing tube 4 in the feeding direction, and the air suction hole 41 on this side is blocked by the baffle 5. When the wood pulp sponge moves from the side of the pressing tube 4 in the incoming material direction to the side of the feeding direction, the wood pulp sponge is no longer affected by the negative pressure suction force, so that it can be separated from the pressing tube 4, and the wood pulp sponge will not be dragged upward by the rotating pressing tube 4, thereby preventing the wood pulp sponge from being entangled on the pressing tube 4.

[0038] Furthermore, an adjustment handle 6 is provided at one end of the baffle 5, and the position of the baffle 5 can be slidably adjusted according to the thickness of the wood pulp sponge.

[0039] Furthermore, a stripping plate 51 is provided on the side of the baffle cover 5 close to the mesh conveyor belt 1. The connection between the stripping plate 51 and the baffle cover 5 forms a sharp angle, and the top of the stripping plate 51 is inclined toward the feeding direction. When the pressing tube 4 adsorbs the wood pulp sponge and moves to the edge of the baffle cover 5, it contacts the sharp angle and moves along the stripping plate 51 under the drag of the mesh conveyor belt 1, so that the wood pulp sponge can smoothly detach from the pressing tube 4, avoiding scratches on the wood pulp sponge by the stripping plate 51.

[0040] Combination Figure 7 , Figure 8 , Fig. 9 and Fig.10 As shown, the adjustment handle 6 includes a fixed shaft 61 and a sleeve 62 sleeved on the fixed shaft 61. The fixed shaft 61 is coaxially arranged with the pressure tube 4. The fixed shaft 61 is fixed to the outside of the drying box 2. A slide groove 201 is provided on the drying box 2. A connecting frame 64 slides in the slide groove 201, and the two ends of the connecting frame 64 are respectively connected to the baffle cover 5 and the sleeve 62. By rotating the sleeve 62 on the fixed shaft 61, the baffle cover 5 can slide synchronously along the pressure tube 4 to adjust the position of the baffle cover 5. The sleeve 62 on the fixed shaft 61 is located on the outside of the drying box 2. When the personnel operate and adjust, it will not come into contact with the high temperature inside the drying box 2 to avoid burns.

[0041] Furthermore, a locking component is provided on the shaft sleeve 62. After the position of the baffle cover 5 is slidably adjusted, the shaft sleeve 62 is locked by the locking component, so that the position of the baffle cover 5 is fixed to prevent the baffle cover 5 from accidentally sliding during the drying process.

[0042] In a specific embodiment, the locking component includes a bolt 63, which radially penetrates the sleeve 62 and is threadedly connected to the sleeve 62. By rotating the bolt 63, the end of the bolt 63 is pressed against the fixed shaft 61, thereby fixing the position of the sleeve 62. Correspondingly, by rotating the bolt 63, the end of the bolt 63 is disengaged from the fixed shaft 61, so that the sleeve 62 can rotate freely.

[0043] The working principle of the present invention is as follows: the wood pulp sponge to be dried is placed at the discharge end of the mesh conveyor belt 1 and conveyed by the mesh conveyor belt 1, so that the wood pulp sponge passes through multiple drying boxes 2 in sequence, and the microwave heating module 21 on the drying box 2 is used to perform microwave heating on the wood pulp sponge conveyed on the mesh conveyor belt 1, so that the moisture inside the wood pulp sponge forms water vapor and escapes outward, thereby reducing the water content of the wood pulp sponge, thereby drying the wood pulp sponge; during drying, an external exhaust device extracts the air inside the pressure pipe 4 through a pipeline, so that a negative pressure is formed inside the pressure pipe 4, and the mesh conveyor belt 1 conveys the wood pulp sponge to pass through multiple pressure pipes 4 in sequence. At the pressure pipe 4, as the pressure pipe 4 rotates, the wood pulp sponge is squeezed into the gap between the pressure pipe 4 and the mesh conveyor belt 1, and passes through the gap (such as Figure 6 As shown), at this time, the thickness of the wood pulp sponge becomes thinner, and at the same time, the pressing tube 4 contacts the wood pulp sponge, and the high-temperature moisture inside the wood pulp sponge is extracted through the suction hole 41. Since the wood pulp sponge is squeezed and thinned by the pressing tube 4, the high-temperature moisture inside the wood pulp sponge can be quickly extracted, avoiding the internal fiber deformation of the wood pulp sponge caused by high temperature accumulation; At the same time, the ozone delivery pipe 7 below the pressure pipe 4 delivers ozone. The suction force generated by the pressure pipe 4 is used to draw the ozone delivered by the ozone delivery pipe 7 upward, pass through the wood pulp sponge, and sterilize the wood pulp sponge.

[0044] In summary of the above embodiments: by arranging a pressure pipe 4 in the drying box 2 and opening an air extraction hole 41 on the pressure pipe 4, as the pressure pipe 4 rotates, the wood pulp sponge is squeezed into the gap between the pressure pipe 4 and the mesh conveyor belt 1, and passes through the gap (such as Figure 6 As shown), at this time, the thickness of the wood pulp sponge becomes thinner, and the high-temperature moisture inside the wood pulp sponge is extracted through the air extraction hole 41. Since the wood pulp sponge is squeezed and thinned by the pressure pipe 4, the high-temperature moisture inside the wood pulp sponge can be quickly extracted to avoid the internal fiber deformation of the wood pulp sponge caused by high temperature accumulation; By arranging an ozone delivery pipe 7 below the mesh conveyor belt 1, and the ozone delivery pipe 7 is located directly below the pressure pipe 4, the wood pulp sponge here is compressed and thinned by the pressure pipe 4, and the path for ozone to penetrate the wood pulp sponge is shortened. By utilizing the suction force generated by the pressure pipe 4, the ozone delivered by the ozone delivery pipe 7 can be sucked upward and pass through the wood pulp sponge to sterilize the wood pulp sponge.

[0045] It should be noted that, in this article, relational terms such as first and second, etc. are only used to distinguish one entity or operation from another entity or operation, and do not necessarily require or imply any such actual relationship or order between these entities or operations. Moreover, the terms "include", "comprise" or any other variants thereof are intended to cover non-exclusive inclusion, so that a process, method, article or device including a series of elements includes not only those elements, but also other elements not explicitly listed, or also includes elements inherent to such process, method, article or device.

[0046] The present invention and its embodiments are described above, and such description is not restrictive. The drawings show only one embodiment of the present invention, and the actual structure is not limited thereto. In short, if ordinary technicians in the field are inspired by it, without departing from the purpose of the invention, they can design a structure and embodiment similar to the technical solution without creativity, which should belong to the protection scope of the present invention.

Claims

1. A wood pulp sponge drying device, characterized in that: It comprises a mesh conveyor belt (1) and a plurality of drying boxes (2), wherein the plurality of drying boxes (2) are sequentially arranged above the mesh conveyor belt (1) along the conveying direction of the mesh conveyor belt (1), and each of the drying boxes (2) is provided with a microwave heating module (21) for microwave heating; A plurality of pressing pipes (4) are evenly distributed above the mesh conveyor belt (1) along the conveying direction of the mesh conveyor belt (1); the pressing pipes (4) are installed on the inner side of the drying box (2) and arranged perpendicular to the conveying direction of the mesh conveyor belt (1); a gap for compressing the wood pulp sponge is formed between the pressing pipes (4) and the conveying surface of the mesh conveyor belt (1); The pressure pipe (4) is provided with a plurality of evenly distributed air extraction holes (41); one end of the pressure pipe (4) is connected to an external air extraction device via a pipeline, so that a negative pressure is formed inside the pressure pipe (4), and high-temperature moisture inside the wood pulp sponge is extracted through the air extraction holes (41); The other end of the pressing tube (4) is provided with a driving component for driving the pressing tube (4) to rotate, and the rotation direction of the pressing tube (4) is consistent with the conveying direction of the wood pulp sponge.

2. The wood pulp sponge drying device according to claim 1, characterized in that: A plurality of ozone delivery pipes (7) corresponding to the positions of the pressure pipes (4) are provided below the mesh conveyor belt (1); the ozone delivery pipes (7) are connected to an external ozone generator via pipelines, so that ozone delivered by the ozone delivery pipes (7) can be sucked by the pressure pipes (4) and pass through the wood pulp sponge.

3. The wood pulp sponge drying device according to claim 1, characterized in that: A connecting pipe (42) is provided at one end of the pressure pipe (4) connected to the exhaust device. The connecting pipe (42) and the pressure pipe (4) are coaxially fixed to each other. One end of the connecting pipe (42) is connected to the inside of the pressure pipe (4). The other end of the connecting pipe (42) extends to the outside of the drying box (2) and is rotatably connected to the drying box (2) via a bearing. The external exhaust device is connected to the pressure pipe (4) via the connecting pipe (42).

4. The wood pulp sponge drying device according to claim 1, characterized in that: The driving component comprises a rotating shaft (43) and a driving motor (44); the rotating shaft (43) and the pressure tube (4) are coaxially fixed to each other; the driving motor (44) is fixed to the outside of the drying box (2); an output end of the driving motor (44) extends into the drying box (2) and is transmission-connected to the rotating shaft (43) via a transmission assembly.

5. The wood pulp sponge drying device according to claim 4, characterized in that: The transmission assembly comprises a passive gear (431) and a driving gear (441); the passive gear (431) and the rotating shaft (43) are coaxially fixed to each other; the driving gear (441) and the output shaft of the driving motor (44) are coaxially fixed to each other; and the passive gear (431) and the driving gear (441) are meshed with each other.

6. The wood pulp sponge drying device according to claim 1, characterized in that: A baffle (5) is provided on the outside of the pressing tube (4). The baffle (5) is fitted to the outer wall of the pressing tube (4) and can slide along the periphery of the pressing tube (4) to block the air extraction hole (41) of the pressing tube (4) on one side of the feeding direction so that the wood pulp sponge is separated from the pressing tube (4). An adjustment handle (6) for adjusting the baffle (5) is provided at one end of the baffle (5).

7. The wood pulp sponge drying device according to claim 6, characterized in that: A stripping plate (51) for guiding the wood pulp sponge to detach is provided on one side of the baffle cover (5) close to the mesh conveyor belt (1).

8. The wood pulp sponge drying device according to claim 6, characterized in that: The adjusting handle (6) comprises a fixed shaft (61) and a shaft sleeve (62) sleeved on the fixed shaft (61); the fixed shaft (61) is coaxially arranged with the pressure tube (4); the fixed shaft (61) is fixed to the outside of the drying box (2); a slide groove (201) is provided on the drying box (2); a connecting frame (64) slides in the slide groove (201); two ends of the connecting frame (64) are respectively connected to the baffle cover (5) and the shaft sleeve (62); a locking component is provided on the shaft sleeve (62).

9. The wood pulp sponge drying device according to claim 8, characterized in that: The locking component comprises a bolt (63), wherein the bolt (63) radially penetrates the shaft sleeve (62) and is threadedly connected to the shaft sleeve (62).

10. The wood pulp sponge drying device according to claim 1, characterized in that: An air induced draft hood (3) and an air induced draft duct (31) are provided above the drying box (2); a plurality of air induced draft hoods (3) are provided and are respectively fixed to the top of the drying box (2); the tops of the plurality of air induced draft hoods (3) are all connected to the air induced draft duct (31); and the air induced draft duct (31) is connected to an external air induced draft fan via a pipeline.

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