A pulp molding drying and heating device

Abstract

The present invention relates to the technical field of drying and heating devices, and specifically relates to a pulp molding drying and heating device, which includes a base and a pulp molding body. The outer wall of the top end of the base is fixedly connected with a plurality of U-shaped frames, and the outer wall of the top end of the U-shaped frame is fixedly connected with a box body. The outer wall of the top end of the base is provided with a conveyor, and the outer wall of the conveyor is fixedly connected with a plurality of bottom frames. A large gear and a small gear are rotatably arranged on the inner wall of the bottom frame, and the large gear and the small gear are meshed with each other. The outer wall of the top end of the large gear is fixedly connected with a circular plate, and the outer wall of the top end of the circular plate is fixedly connected with an annular frame. Chute grooves are opened on the outer walls of both sides of the bottom of the annular frame; In the present invention, the continuously rotating pulp molding body cooperates with the circulating hot air to make the contact drying speed of each surface of the pulp molding body with the hot air basically the same, ensuring the drying quality of the product. The alternately replaced supporting structure avoids drying dead corners and improves the drying efficiency of the pulp molding.

Description

Technical Field

[0001] The present invention relates to the technical field of drying and heating devices, and particularly to a pulp molding drying and heating device. Background Art

[0002] Pulp molding has the characteristics of being a poor conductor of heat, having a high moisture content, and a low ignition point. That is, wet blanks of pulp molding need to be dried by special drying equipment. The basic principle of traditional pulp molding drying equipment is to heat air with various energy sources and then use the hot air to dry the pulp molding. However, due to the too high moisture content of the wet pulp molding blanks, traditional hot drying equipment requires a long time for drying, resulting in high drying costs and low drying efficiency, incomplete drying, and thus wasting a lot of energy.

[0003] After retrieving the Chinese patent with the publication number CN208860072U, a pulp molding drying device is disclosed. The first hot air blower and the second hot air blower are respectively located at both ends of the drying box body. During operation, hot air at both ends forms convection, thereby drying all the pulp molding on the conveying device and improving the drying efficiency. The design of the steam main pipe and the steam spray pipe is to spray the high-temperature steam in the steam main pipe onto the surface of the pulp molding through the steam spray pipe, thereby achieving high-temperature drying and improving the drying efficiency to a certain extent. The design of the second motor and the arc heating plate is to drive the arc heating plate to rotate through the second motor, thereby drying the pulp molding evenly and improving the drying efficiency.

[0004] Based on the above retrieval and in combination with the prior art, it is found that existing pulp molding remains stationary during drying or moves into the drying structure along with the conveying structure and is dried by a heating structure or high-temperature steam. However, the surface of the pulp molding in contact with the placement structure at the bottom cannot directly contact the heating structure or high-temperature steam, resulting in drying dead corners, poor drying effect at the bottom of the pulp molding, uneven drying affecting the quality, and the heating structure and high-temperature steam cannot evenly contact all surfaces of the pulp molding. The drying speeds of the surfaces of the pulp molding in direct contact with hot air and in indirect contact are different, which also easily affects the product quality and reduces the drying efficiency of the pulp molding. Summary of the Invention

[0005] The purpose of the present invention is to provide a pulp molding drying and heating device to solve the problems raised in the above background art.

[0006] The technical solution of the present invention is: a pulp molding drying and heating device, including a base and a pulp molding body. The outer wall of the top end of the base is fixedly connected with a plurality of U-shaped frames. The outer wall of the top end of the U-shaped frame is fixedly connected with a box body. The outer wall of the top end of the base is provided with a conveyor. The outer wall of the conveyor is fixedly connected with a plurality of bottom frames. A large gear and a small gear are rotatably arranged on the inner wall of the bottom frame. The large gear and the small gear are meshed with each other. The outer wall of the top end of the large gear is fixedly connected with a circular plate. The outer wall of the top end of the circular plate is fixedly connected with an annular frame. Sliding grooves are formed on both outer walls at the bottom of the annular frame. A sliding plate is slidably connected to the inner wall of the sliding groove. A plurality of ventilation holes are formed on the outer wall of the top end of the annular frame. A plurality of vertical rods are fixedly connected to the outer wall of the top end of the sliding plate. Installation frames are fixedly connected to both inner walls of the box body. A wind guide cover is fixedly connected to the outer wall of one side of the installation frame. A filter frame is fixedly connected to the outer wall of one side of the wind guide cover. A rectangular frame is fixedly connected to the outer wall of the other side of the installation frame. A rack is fixedly connected to the outer wall of the other side at the bottom of the installation frame. An adsorbent is arranged on the inner wall of the filter frame. A hot air blower is installed on the inner wall of one side of the installation frame. A trapezoidal plate is fixedly connected to the outer wall of one side of the rectangular frame.

[0007] Preferably, the filter frame is triangularly arranged. A handle is fixedly connected to the outer wall of one side of the filter frame. A rectangular hole is formed on the outer wall of one side of the box body. The size of the rectangular hole is adapted to that of the handle. The racks are all meshed with the small gear. The adsorbent is made of silica gel.

[0008] Preferably, an air outlet pipe is inserted into the output end of the hot air blower. The air outlet pipe is communicated with the rectangular frame. Air outlet holes are formed on both the top and bottom outer walls of the rectangular frame. The air outlet holes are all arranged in a linear array. The air outlet holes at the top and bottom of the rectangular frame are respectively adapted to the heights of the annular frame and the circular plate.

[0009] Preferably, the size of the wind guide cover is adapted to that of the filter frame. A wind guide hole is formed on the outer wall of one side of the wind guide cover. The position of the wind guide hole is adapted to that of the hot air blower. Inclined surfaces are arranged on both outer walls of the trapezoidal plate. The height of the trapezoidal plate is adapted to that of the sliding plate.

[0010] Preferably, a cavity is formed on the outer wall of the top end of the annular frame. A telescopic rod is fixedly connected to the inner wall of the bottom of the cavity. One end of the piston rod of the telescopic rod is fixedly connected to the outer wall of the bottom end of the sliding plate. A return spring is sleeved on the outer wall of the telescopic rod. Both ends of the return spring are fixedly connected to the sliding plate and the circular plate respectively.

[0011] Preferably, the ventilation holes and the vertical rods are both arranged in an annular array. The vertical rods are located directly below the ventilation holes. Limit blocks are fixedly connected to both outer walls at the top ends of the annular frame. The sizes of the annular frame and the limit blocks are both adapted to that of the pulp molding body.

[0012] Preferably, import and export openings are formed on the outer walls of both sides of the bottom of the box body. Dust-proof curtains are fixedly connected to the inner walls of the tops of the import and export openings. The import and export openings are adapted to the width of the bottom frame, and the import and export openings are adapted to the sum of the heights of the annular frame and the pulp molding body. Air guide grooves are formed on the inner walls of both sides of the top of the box body, and the air guide grooves are adapted to the positions of the bottom frame and the filter frame.

[0013] Preferably, mounting holes are formed on the inner walls of both sides of the top of the U-shaped frame. Pressing rollers are rotatably arranged on the inner walls of the mounting holes. The pressing rollers are located directly below the absorbent cotton. The pressing rollers are in rolling connection with the outer wall of the absorbent cotton. The absorbent cotton is slidably connected to the outer wall of the bottom end of the filter frame. The sliding plate is circularly arranged, and the sliding plate is adapted to the size of the annular frame. A pair of arc-shaped holes concentric with the sliding plate and symmetrically arranged are formed on the outer wall of the top end of the sliding plate, and the arc-shaped holes are adapted to the size of the annular frame.

[0014] The present invention provides a pulp molding drying and heating device through improvement. Compared with the prior art, it has the following improvements and advantages:

[0015] First: The present invention is provided with a box body, a conveyor, a bottom frame, an annular frame, a sliding plate, a hot air blower and a filter frame. The hot air blower makes the air in the box body continuously circulate and flow, and uniformly and continuously dries and heats the pulp molding body. During the drying and heating process of the pulp molding body, under the combined action of the rack, the small gear and the large gear meshing, the pulp molding body continuously rotates, and all surfaces of the pulp molding body are evenly and synchronously contacted with the hot air, further improving the drying effect of the pulp molding body. When the pulp molding body is rotated and dried, the trapezoidal plate makes the sliding plate rise first and then fall. Before the sliding plate rises, the hot air dries the surface where the pulp molding body is placed at the bottom through the ventilation holes of the annular frame. After the sliding plate rises, the vertical rod passes through the ventilation holes to support the pulp molding body, and the previously blocked part is exposed to complete full drying. The continuously rotating pulp molding body and the circulating hot air make the contact drying speed of each surface of the pulp molding body with the hot air basically the same, ensuring the drying quality of the product. The alternately replaced support structure avoids drying dead corners and improves the drying efficiency of the pulp molding.

[0016] Second: The present invention is provided with an air guide groove, an air guide cover and a rectangular frame. The hot air forms a convection after being output through the air outlet holes at the top and bottom of the two rectangular frames, dries the pulp molding body and then rises, and respectively enters the two air guide grooves. Under the action of the air guide grooves, it moves downward more smoothly, is filtered by the filter frame, and finally returns to the installation frame under the action of the air guide cover. The movement of the hot air is more smoothly guided, and the uniform drying slows down the heat loss, ensuring that the drying and heating of the pulp molding body are more uniform and sufficient.

[0017] Thirdly: After the pulp molding body is dried and heated by the conveyor and the absorbent cotton provided in the present invention, the temperature of the hot air decreases. After being filtered by the filter frame, some water vapor will condense on the outer wall of the filter frame, form water droplets that slide down and are absorbed by the absorbent cotton, and are output from the box body along with the absorbent cotton. The impurities generated during drying are also filtered and discharged, preventing the hot air from evaporating the water droplets again and affecting the drying effect of the pulp molding body and the product quality.

[0018] Fourthly: By providing a U-shaped frame and extrusion rollers in the present invention, when the absorbent cotton moving with the conveyor passes through the U-shaped frame, the extrusion rollers extrude the absorbent cotton, and most of the absorbed water is discharged to prevent it from returning to the box body with the conveyor and affecting the drying speed of the pulp molding body, ensuring the drying effect of the pulp molding. Description of the Drawings

[0019] The present invention will be further explained below in conjunction with the drawings and embodiments:

[0020] Figure 1 is a three-dimensional schematic diagram of the overall structure of the present invention;

[0021] Figure 2 is a sectional side view of the overall structure of the present invention;

[0022] Figure 3 is a schematic diagram of the connection structure of the bottom frame of the present invention;

[0023] Figure 4 is an exploded schematic diagram of the connection structure of the annular frame of the present invention;

[0024] Figure 5 is an exploded schematic diagram of the connection structure of the sliding plate of the present invention;

[0025] Figure 6 is a sectional side view of the connection structure of the installation frame of the present invention;

[0026] Figure 7 is a schematic diagram of the connection structure of the air guide cover of the present invention;

[0027] Figure 8 is a schematic diagram of the connection structure of the rectangular frame of the present invention;

[0028] Figure 9 is an exploded schematic diagram of the connection structure of the filter frame of the present invention;

[0029] Figure 10 is a schematic diagram of the connection structure of the U-shaped frame of the present invention.

[0030] Description of the Reference Numerals:

[0031] 1. Base; 2. Conveyor; 3. Handle; 4. Dust-proof curtain; 5. Box body; 6. Absorbent cotton; 7. U-shaped frame; 8. Squeezing roller; 9. Installation frame; 10. Rectangular frame; 11. Bottom frame; 12. Pulp molding body; 13. Ring-shaped frame; 14. Filter frame; 15. Vent hole; 16. Cavity; 17. Small gear; 18. Circular plate; 19. Sliding plate; 20. Vertical rod; 21. Telescopic rod; 22. Large gear; 23. Return spring; 24. Hot air blower; 25. Adsorbent; 26. Air guide cover; 27. Trapezoidal plate; 28. Rack; 29. Air outlet hole; 30. Chute; 31. Arc-shaped hole; 32. Air guide groove; 33. Air guide hole; 34. Air outlet pipe. Detailed implementation manner

[0032] The present invention will be described in detail below. The technical solutions in the embodiments of the present invention are clearly and completely described. Obviously, the described embodiments are only a 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 those of ordinary skill in the art without creative efforts belong to the scope of protection of the present invention.

[0033] The present invention provides a pulp molding drying and heating device through improvement. The technical solution of the present invention is as follows:

[0034] As Figures 1 - 10 shown, a pulp molding drying and heating device includes a base 1 and a pulp molding body 12. A plurality of U-shaped frames 7 are fixedly connected to the outer wall of the top end of the base 1. The outer wall of the top end of the U-shaped frame 7 is fixedly connected to a box body 5. A conveyor 2 is installed on the outer wall of the top end of the base 1. A plurality of bottom frames 11 are fixedly connected to the outer wall of the conveyor 2. A large gear 22 and a small gear 17 are rotatably arranged on the inner wall of the bottom frame 11. The large gear 22 and the small gear 17 are meshed with each other. A circular plate 18 is fixedly connected to the outer wall of the top end of the large gear 22. A ring-shaped frame 13 is fixedly connected to the outer wall of the top end of the circular plate 18. Chutes 30 are opened on both outer walls at the bottom of the ring-shaped frame 13. A sliding plate 19 is slidably connected to the inner wall of the chute 30. A plurality of vent holes 15 are opened on the outer wall of the top end of the ring-shaped frame 13. A plurality of vertical rods 20 are fixedly connected to the outer wall of the top end of the sliding plate 19. Installation frames 9 are fixedly connected to both inner walls of the box body 5. An air guide cover 26 is fixedly connected to the outer wall of one side of the installation frame 9. A filter frame 14 is fixedly connected to the outer wall of one side of the air guide cover 26. A rectangular frame 10 is fixedly connected to the outer wall of the other side of the installation frame 9. A rack 28 is fixedly connected to the outer wall of the other side at the bottom of the installation frame 9. An adsorbent 25 is arranged on the inner wall of the filter frame 14. A hot air blower 24 is installed on the inner wall of one side of the installation frame 9. A trapezoidal plate 27 is fixedly connected to the outer wall of one side of the rectangular frame 10.

[0035] Furthermore, the filter box 14 is triangularly arranged. One outer wall of the filter box 14 is fixedly connected with a handle 3. A rectangular hole is formed in one outer wall of the box body 5, and the size of the rectangular hole is adapted to that of the handle 3. The rack 28 is meshed with the pinion 17. The adsorbent 25 is made of silica gel. The output end of the hot air blower 24 is plugged with an air outlet pipe 34, and the air outlet pipe 34 is communicated with the rectangular frame 10. Air outlet holes 29 are formed in the top and bottom outer walls of the rectangular frame 10, and the air outlet holes 29 are arranged in a linear array. The air outlet holes 29 at the top and bottom of the rectangular frame 10 are respectively adapted to the heights of the annular frame 13 and the circular plate 18. Only the bottom of the mounting frame 9 close to the pinion 17 is provided with a rack 28 meshed therewith. When the annular frame 13 enters the box body 5, it will push open the dust-proof curtain 4. After entering, the dust-proof curtain 4 will reset, and a small amount of air will enter and exit the box body 5 through the inlet and outlet, without affecting the overall circulation of the hot air inside the box body 5.

[0036] Furthermore, the air guide cover 26 is adapted to the size of the filter box 14. An air guide hole 33 is formed in one outer wall of the air guide cover 26, and the position of the air guide hole 33 is adapted to that of the hot air blower 24. Inclined surfaces are provided on both outer walls of the trapezoidal plate 27, and the height of the trapezoidal plate 27 is adapted to that of the sliding plate 19. A cavity 16 is formed in the top outer wall of the annular frame 13. A telescopic rod 21 is fixedly connected to the bottom inner wall of the cavity 16. One end of the piston rod of the telescopic rod 21 is fixedly connected to the bottom outer wall of the sliding plate 19. A return spring 23 is sleeved on the outer wall of the telescopic rod 21, and both ends of the return spring 23 are fixedly connected to the sliding plate 19 and the circular plate 18 respectively. The return spring 23 facilitates the reset of the sliding plate 19.

[0037] Furthermore, the ventilation holes 15 and the vertical rods 20 are both distributed in an annular array. The vertical rods 20 are located directly below the ventilation holes 15. On both outer walls of the top end of the annular frame 13, limiting blocks are fixedly connected. The annular frame 13 and the limiting blocks are both adapted to the size of the pulp molding body 12. On both outer walls of the bottom of the box body 5, inlets and outlets are provided. On the top inner walls of the inlets and outlets, dust-proof curtains 4 are fixedly connected. The inlets and outlets are adapted to the width of the bottom frame 11, and are adapted to the sum of the height of the annular frame 13 and the pulp molding body 12. On both inner walls of the top of the box body 5, air guide grooves 32 are provided. The air guide grooves 32 are both adapted to the positions of the bottom frame 11 and the filter frame 14. On both inner walls of the top of the U-shaped frame 7, mounting holes are provided. On the inner walls of the mounting holes, extrusion rollers 8 are rotatably arranged. The extrusion rollers 8 are located directly below the water-absorbing cotton 6. The extrusion rollers 8 are in rolling connection with the outer wall of the water-absorbing cotton 6. The water-absorbing cotton 6 is slidably connected to the bottom outer wall of the filter frame 14. The sliding plate 19 is circularly arranged and is adapted to the size of the annular frame 13. On the outer wall of the top end of the sliding plate 19, a pair of arc-shaped holes 31 that are concentric with the sliding plate 19 and are symmetrically arranged are provided. The arc-shaped holes 31 are adapted to the size of the annular frame 13. When the water-absorbing cotton 6 moving with the conveyor 2 passes through the U-shaped frame 7, the extrusion rollers 8 extrude the water-absorbing cotton 6, and most of the absorbed water is discharged to prevent it from returning to the box body 5 and affecting the drying effect of the pulp molding body 12. Even if a small amount of water returns to the box body 5, it will not affect the drying effect. If it is evaporated, it will also be absorbed by the adsorbent 25. After the adsorbent 25 in the filter frame 14 reaches saturation within a certain period of time, the worker removes the filter frame 14 through the handle 3 for replacement. The water absorbed by the adsorbent 25 can be removed by heating or decompression methods.

[0038] Working principle: When conducting the drying and heating treatment of pulp molding, place the pulp molding body 12 on the top of the annular frame 13 on the outer wall bottom frame 11 of the conveyor 2. The pulp molding body 12 enters the interior of the box body 5 with the conveyor 2 pushing aside the dust-proof curtain 4. At the same time, start the hot air blower 24 in the installation frame 9 to heat and convey the air in the box body 5. The hot air blowers 24 in the two installation frames 9 continuously convey hot air towards the middle to conduct the drying and heating treatment on the pulp molding body 12 on the annular frame 13 in the middle of the conveyor 2. The hot air carrying the water vapor generated by the drying and heating of the pulp molding rises to the top of the box body 5 and then moves to both sides and descends to the position of the filter frame 14 under the action of the air guide groove 32. After the airflow carrying water vapor for heating and drying passes through the filter frame 14, the water vapor in the airflow is absorbed by the adsorbent 25 immediately. The air passing through is drawn away by the hot air blower 24 again and heated and conveyed to form a cycle. The circulating hot air conducts the drying and heating treatment on the pulp molding body 12 at its position. The water vapor carried by the airflow for drying at the position of the filter frame 14 is absorbed by the adsorbent 25, and the air moves to the position of the hot air blower 24 and is heated again. The conveyor 2 drives the bottom frame 11 and the pulp molding body 12 to move. The small gear 17 on the bottom frame 11 contacts and meshes with the rack 28 on the installation frame 9. When the small gear 17 rotates, it drives the large gear 22 to rotate slowly. The large gear 22 drives the circular plate 18 and the annular frame 13 to rotate. The pulp molding body 12 on the annular frame 13 rotates and evenly contacts the hot air output from the air outlet holes 29 on the rectangular frame 10, ensuring synchronous heating of each surface to guarantee the drying effect. The surface of the pulp molding body 12 in contact with the annular frame 13 is provided with ventilation holes 15. First, part of the hot air passes through the ventilation holes 15 to heat and dry a part of the area at the bottom of the pulp molding body 12. When the annular frame 13 moves to the trapezoidal plate 27, the sliding plate 19 connected to the outer wall chute 30 of the annular frame 13 first abuts against the inclined surface on one side of the trapezoidal plate 27. Under the action of the trapezoidal plate 27, the sliding plate 19 gradually slides upward on the inner wall of the chute 30. The vertical rod 20 at the top of the sliding plate 19 passes through the ventilation hole 15 to support the pulp molding body 12. At this time, the part of the position of the ventilation hole 15 at the bottom of the pulp molding body 12 that is exposed has been dried. After being lifted by the vertical rod 20, another part of the covered part is exposed and evenly dried again. And the pulp molding body 12 is in a rotating state when being supported by the annular frame 13 and the vertical rod 20 and is evenly dried. Under the action of the inclined surface on the other side of the trapezoidal plate 27, the sliding plate 19 resets, the vertical rod 20 is separated from the pulp molding body 12, and the annular frame 13 supports and outputs the pulp molding body 12 again, completing the uniform heating and drying treatment of the pulp molding.

[0039] The telescopic rod 21 and the return spring 23 arranged in the top cavity 16 of the annular frame 13 facilitate the reset of the sliding plate 19. The filter frame 14 is arranged in a triangular shape. When the airflow carrying water vapor circulates through the air guide groove 32 and reaches the filter frame 14, the impurities generated by the heating and drying effect are filtered by the filter frame 14. At this time, the temperature of the airflow decreases. When passing through the filter frame 14, the water vapor is adsorbed by the adsorbent 25 made of internal silica gel material. At the same time, part of the water vapor will adhere to the outer wall of the filter frame 14 to form water droplets due to the temperature drop. Absorbent cotton 6 is arranged on both sides of the conveyor 2. The water droplets left on the filter frame 14 will be absorbed by the absorbent cotton 6 and transported to the box body 5 to prevent the water from being evaporated again to form water vapor and affect the heating and drying effect of the internal pulp molding body 12. An extrusion roller 8 is arranged in the U-shaped frame 7. When the absorbent cotton 6 moving with the conveyor 2 passes through the U-shaped frame 7, the extrusion roller 8 extrudes the absorbent cotton 6, and most of the absorbed water is discharged to prevent it from returning to the box body 5 and affecting the drying effect of the pulp molding body 12. A small amount of water returning to the box body 5 will not affect the drying effect either. If it is evaporated, it will also be absorbed by the adsorbent 25. After the adsorbent 25 in the filter frame 14 reaches saturation within a certain period of time, the worker pulls out the filter frame 14 through the handle 3 for replacement treatment. The water absorbed by the adsorbent 25 can be removed by heating or decompression methods.

[0040] The technical means disclosed in the solution of the present invention are not limited to the technical means disclosed in the above technical means, but also include the technical solutions composed of equivalent replacements of the above technical features. The matters not covered in the present invention belong to the common general knowledge of those skilled in the art.

Claims

1. A pulp molding drying and heating device, comprising a base (1) and a pulp molding body (12), characterized in that: The top outer wall of the base (1) is fixedly connected to a plurality of U-shaped frames (7), the top outer wall of the U-shaped frame (7) is fixedly connected to a box (5), the top outer wall of the base (1) is installed with a conveyor (2), the outer wall of the conveyor (2) is fixedly connected to a plurality of bottom frames (11), the inner wall of the bottom frame (11) is rotatably provided with a large gear (22) and a small gear (17), the large gear (22) and the small gear (17) are meshed, the top outer wall of the large gear (22) is fixedly connected to a circular plate (18), the top outer wall of the circular plate (18) is fixedly connected to an annular frame (13), both sides of the bottom outer wall of the annular frame (13) are provided with a slide groove (30), the inner wall of the slide groove (30) is slidably connected to a sliding plate (19), the annular frame (13) is fixedly connected to the outer wall of the circular plate (18), and the inner wall of the slide groove (30) is slidably connected to a sliding plate (19). The top outer wall of the frame (13) is provided with a plurality of ventilation holes (15); the top outer wall of the sliding plate (19) is fixedly connected to a plurality of vertical rods (20); the inner walls on both sides of the box body (5) are fixedly connected to a mounting frame (9); an outer wall on one side of the mounting frame (9) is fixedly connected to an air guide cover (26); an outer wall on one side of the air guide cover (26) is fixedly connected to a filter frame (14); an outer wall on the other side of the mounting frame (9) is fixedly connected to a rectangular frame (10); an outer wall on the other side of the bottom of the mounting frame (9) is fixedly connected to a rack (28); an inner wall of the filter frame (14) is provided with an adsorbent (25); a hot air blower (24) is installed on an inner wall on one side of the mounting frame (9); and a trapezoidal plate (27) is fixedly connected to an outer wall on one side of the rectangular frame (10).

2. A pulp molding drying and heating device according to claim 1, characterized in that: The filter frame (14) is arranged in a triangular shape, a handle (3) is fixedly connected to one side outer wall of the filter frame (14), a rectangular hole is opened on one side outer wall of the box body (5), the rectangular hole is adapted to the size of the handle (3), the racks (28) are meshed with the pinions (17), and the adsorbent (25) is made of silica gel.

3. A pulp molding drying and heating device according to claim 1, characterized in that: An outlet pipe (34) is plugged into the output end of the hot air blower (24), and the outlet pipe (34) is in communication with the rectangular frame (10). The top and bottom outer walls of the rectangular frame (10) are provided with outlet holes (29), and the outlet holes (29) are distributed in a linear array. The top and bottom outlet holes (29) of the rectangular frame (10) are respectively adapted in height to the annular frame (13) and the circular plate (18).

4. A pulp molding drying and heating device according to claim 1, characterized in that: The air guide cover (26) is adapted to the size of the filter frame (14); an air guide hole (33) is provided on one side outer wall of the air guide cover (26); the air guide hole (33) is adapted to the position of the hot air blower (24); both side outer walls of the trapezoidal plate (27) are provided with inclined surfaces; the height of the trapezoidal plate (27) is adapted to the height of the sliding plate (19).

5. A pulp molding drying and heating device according to claim 4, characterized in that: The top outer wall of the annular frame (13) is provided with a cavity (16), the bottom inner wall of the cavity (16) is fixedly connected with a telescopic rod (21), one end of the piston rod of the telescopic rod (21) is fixedly connected to the bottom outer wall of the sliding plate (19), the outer wall of the telescopic rod (21) is sleeved with a return spring (23), and the two ends of the return spring (23) are respectively fixedly connected to the sliding plate (19) and the circular plate (18).

6. A pulp molding drying and heating device according to claim 1, characterized in that: The vent holes (15) and the vertical rods (20) are distributed in an annular array, the vertical rods (20) are located directly below the vent holes (15), and both side outer walls of the top end of the annular frame (13) are fixedly connected to limit blocks, and the annular frame (13) and the limit blocks are adapted to the size of the pulp molding body (12).

7. A pulp molding drying and heating device according to claim 1, characterized in that: The outer walls on both sides of the bottom of the box body (5) are provided with inlets and outlets, the top inner walls of the inlets and outlets are fixedly connected with dust curtains (4), the inlets and outlets are adapted to the width of the bottom frame (11), the inlets and outlets are adapted to the sum of the heights of the annular frame (13) and the pulp molding body (12), and the inner walls on both sides of the top of the box body (5) are provided with air guide grooves (32), and the air guide grooves (32) are adapted to the positions of the bottom frame (11) and the filter frame (14).

8. The pulp molding drying and heating device according to claim 1, characterized in that: The inner walls on both sides of the top of the U-shaped frame (7) are provided with mounting holes, and the inner walls of the mounting holes are rotatably provided with squeezing rollers (8), the squeezing rollers (8) are located directly below the absorbent cotton (6), the squeezing rollers (8) are rollingly connected to the outer wall of the absorbent cotton (6), and the absorbent cotton (6) is slidably connected to the outer wall of the bottom end of the filter frame (14), the sliding plate (19) is arranged in a circular shape, the size of the sliding plate (19) is adapted to the size of the annular frame (13), and the outer wall of the top end of the sliding plate (19) is provided with a pair of arc holes (31) which are coaxial with the sliding plate (19) and are symmetrically arranged, and the arc holes (31) are adapted to the size of the annular frame (13).

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