Roller type drying machine

Abstract

The utility model discloses a roller type drying machine. The drying machine comprises a drying system. The drying system comprises a roller, and the wet material can be attached to the outer surface of the roller; the roller can rotate around the axis of the roller. And the working efficiency is greatly improved.

Description

TECHNICAL FIELD

[0001] The present application relates to the field of material drying treatment, in particular to a roller dryer. BACKGROUND

[0002] The roller dryer is a contact type internal heating conduction drying machine. It is widely used in chemical industry, brewing, manufacturing, pharmaceutical industry, fertilizer industry, municipal sludge treatment, etc.

[0003] The rotating drum of the roller dryer is a slightly inclined and rotatable cylindrical body. Wet material enters from the upper end of one end, and dry material is collected from the lower end of the other end. Hot air enters from the feeding end or the discharging end and is discharged from the upper end of the other end. The drum is equipped with a forward flighting, which continuously scoops up and pours down the material during the rotation of the drum body, so that the material is fully contacted with the hot air flow to improve the drying efficiency and move the material forward. The material is heated by the drum wall during the rotation of the drum, and the moisture is vaporized. The processes of film formation, vaporization and dehydration are completed in one rotation period of the drum. The dried material is scraped down by a scraper and conveyed to a finished product storage tank by a screw conveyor, and then is crushed or directly packaged. CONTENT OF THE INVENTION

[0004] In order to solve the problems in the prior art, the present application provides a roller dryer.

[0005] The specific technical scheme of the present application is as follows:

[0006] A roller dryer is used for drying wet material. The dryer comprises a drying system. The drying system comprises a roller, and the wet material can be attached to the side surface of the roller.

[0007] The roller can rotate around its own axis.

[0008] In one specific embodiment, the roller is a hollow structure, and the inside of the roller is used for introducing a heat source.

[0009] In one specific embodiment, a plurality of rollers are provided, and the plurality of rollers are arranged in parallel side by side.

[0010] In one specific embodiment, the dryer comprises a housing system, the drying system is arranged inside the housing system, the housing system is a columnar structure, and the axis of the roller is arranged perpendicular to the axis of the housing system.

[0011] In one specific embodiment, a rotary connector is arranged at one end of the roller, the rotary connector is respectively connected with an inlet pipe and an outlet pipe, and the rotary connector is rotationally connected with the drying system.

[0012] In one specific embodiment, the inlet pipe is connected to the hollow cavity inside the roller via a rotary connector, and the outlet pipe is connected to an external outlet pipe via a rotary connector. The external outlet pipe is located inside the roller, and the end of the external outlet pipe away from the outlet pipe is located near the lower end of the roller.

[0013] In one embodiment, the dryer includes a fabric scraping system for conveying wet material onto a roller; the fabric scraping system includes a fabric tube and a scraper disposed on the side surface of the roller.

[0014] In one specific embodiment, the scraper is located behind the distribution tube in the direction of movement of the wet material.

[0015] In one specific embodiment, the scraper is arranged along the axial direction of the roller, and the length of the scraper is adapted to the axial length of the roller; the scraper abuts against the side surface of the roller.

[0016] In one embodiment, the dryer includes a material crushing system, which includes a crushing chamber and a crushing shaft located at the end of the scraper.

[0017] The scraper can scrape the dried material obtained after drying on the roller into the crushing chamber, and the crushing shaft can impact the dry material to crush it.

[0018] In one specific embodiment, the crushing shaft is located inside the crushing chamber, and a screen is provided below the crushing shaft, with screen holes provided to avoid the crushing shaft.

[0019] In one specific embodiment, the dryer includes a conveying system, the conveying system including an auger chamber disposed below the crushing chamber, and an auger shaft disposed inside the auger chamber, the auger shaft being arranged parallel to the crushing shaft;

[0020] A conveying auger is detachably connected to one end of the auger chamber; the conveying auger includes a sealed chamber and a conveying shaft disposed therein.

[0021] In one specific embodiment, the dryer includes a shell, the crushing chamber and the auger chamber are disposed inside the shell, the sealing chamber is disposed outside the shell, and a connecting pipe is provided between the sealing chamber and the auger chamber, the connecting pipe being detachably connected to the sealing chamber.

[0022] In one specific embodiment, a support frame is provided inside the housing, and the scraper, feeding pipe, crushing chamber and auger chamber are all fixed on the support frame.

[0023] Beneficial effects

[0024] This application provides a roller dryer. Through the above design, the problem of viscous materials being unable to be dried is solved. The rotation of the drying roller and the heating are synchronized. Furthermore, the roller is made of metal, which has high thermal conductivity, large heat storage space, and sufficient heat, thus helping to dry wet materials more stably and evenly.

[0025] The side surface of each roller can perform the drying task, and the large amount of steam that can be contained within the roller cavity greatly improves production efficiency; the dimensions and structure of each set of rollers are identical, facilitating manufacturing. Roller replacement is convenient in case of failure, enabling better mass production.

[0026] During the feeding and scraping process, the feeding tubes and scrapers on the surface of each roller maximize the utilization of heat energy and the balance of forces, resulting in better dynamic balance than conventional dryers.

[0027] This application features an external conveying auger device that can transport materials in a vacuum environment. However, the high viscosity of the materials can easily cause blockages and adhesions in general sealed equipment. Therefore, the external conveying auger designed can not only transport materials relatively stably, but also be easily removed and replaced with a new one in case of failure, greatly reducing downtime caused by material blockages in actual factory production. Attached Figure Description

[0028] Figure 1 This is an overall schematic diagram of the dryer in this application;

[0029] In the diagram, 1 is the roller; 11 is the scraper; 12 is the feeding pipe; 2 is the rotary connector; 3 is the crushing chamber; 4 is the crushing shaft; 5 is the screen; 6 is the auger chamber; 7 is the sealing chamber; 8 is the connecting pipe; and 9 is the shell. Detailed Implementation

[0030] The present application will now be described in detail. While specific embodiments of the present application are shown, it should be understood that the present application can be implemented in various forms and should not be limited to the embodiments set forth herein. Rather, these embodiments are provided to enable a more thorough understanding of the present application and to fully convey the scope of the present application to those skilled in the art.

[0031] It should be noted that certain terms are used in the specification and claims to refer to specific components. Those skilled in the art will understand that different terms may be used to refer to the same component. This specification and claims do not distinguish components based on differences in terminology, but rather on differences in function. The terms "comprising" or "including" used throughout the specification and claims are open-ended and should be interpreted as "comprising but not limited to." The following descriptions in the specification are preferred embodiments for carrying out this application; however, these descriptions are for the purpose of understanding the general principles of the specification and are not intended to limit the scope of this application. The scope of protection of this application shall be determined by the appended claims.

[0032] refer to Figure 1 This application provides a roller dryer 1 for drying wet materials. The dryer includes a drying system, and the drying system includes a roller 1, on which the wet material can adhere to the side surface of the roller 1.

[0033] The roller 1 is capable of rotating around its own axis.

[0034] When the dryer is running, the wet material is attached to the roller 1, and then the roller 1 rotates to dry the wet material to obtain dry material.

[0035] In one specific embodiment, the roller 1 has a cylindrical structure, and the radial dimension of the roller 1 is smaller than the axial dimension, so that the roller 1 presents itself as a long cylindrical strip.

[0036] In another embodiment, the roller 1 has a large radial dimension, making the roller 1 a flat, thick cylinder.

[0037] The cylindrical roller 1 can rotate around its central axis, allowing its side surface to rotate. After wet material adheres to the side surface of the roller 1, the roller 1 can dry the wet material. Simultaneously, the cyclical rotation of the roller 1 ensures that the wet material adheres evenly to its side surface. Furthermore, the rotation of the roller 1 drives the rotation and movement of both wet and dry materials, enabling the roller 1 to both dry and transport the materials, increasing the processing speed of the wet material and thus improving the drying efficiency of the material.

[0038] The roller 1 has a hollow structure, and the interior of the roller 1 is used to introduce a heat source.

[0039] The heat source inside roller 1 is used to heat roller 1, and then the heat is transferred to the wet material through roller 1, which increases the evaporation rate of the liquid components in the wet material, thereby increasing the drying efficiency of roller 1.

[0040] On the other hand, by heating the inside of roller 1, the wet material can be rapidly cooled within one rotation of roller 1, thus enabling roller 1 to simultaneously dry and transport the wet material. This reduces the occurrence of incomplete drying of the wet material after one rotation of roller 1.

[0041] Multiple rollers 1 are provided, and the multiple rollers 1 are arranged in parallel side by side.

[0042] Multiple rollers 1 are installed in the dryer, and the drying is carried out simultaneously using multiple rollers 1. This allows the dryer to dry more wet materials in the same amount of time, thereby increasing the processing speed of wet materials and improving the drying speed and efficiency of wet materials.

[0043] By arranging the rollers 1 in parallel, the possibility of collisions caused by roller misalignment during rotation is reduced. Furthermore, the parallel arrangement of the rollers 1 helps improve the space utilization inside the dryer, allowing more rollers 1 to be placed inside, enabling the dryer to process more wet material in the same amount of time and improving its drying efficiency.

[0044] The dryer includes a shell system, the drying system is disposed inside the shell system, the shell system is a columnar structure, and the axis of the roller 1 is arranged to intersect the axis of the shell system.

[0045] The drying system is located inside the outer shell system, which provides internal space for the drying system to protect it from external influences.

[0046] Roller 1 is located inside the outer shell system. When wet material enters the dryer, it will adhere to roller 1. After being dried by roller 1, the material will fall off roller 1 and be discharged into the outer shell system.

[0047] In one specific embodiment, the roller 1 is a long, cylindrical structure. The axis of the roller 1 intersects the axis of the housing system, creating a longitudinal and transverse structure between the roller 1 and the housing system. The length direction of the roller 1 matches the radial direction of the housing system. Therefore, multiple rollers 1 can be placed side-by-side inside the housing system.

[0048] Crucially, the rollers 1 are arranged intersectingly within the housing system. When observing the operation of rollers 1 through the housing system, the overall structure of rollers 1 and the movement of wet and dry materials on them can be viewed through viewing windows on the side of rollers 1. Compared to arranging rollers 1 along the axial direction of the housing system, small viewing windows make it difficult to see the entire roller 1, while large viewing windows affect the integrity of the housing system. Therefore, the intersecting arrangement of rollers 1 and the housing system in this application facilitates observation of rollers 1.

[0049] On the other hand, when installing roller 1, by cross-setting roller 1 with the outer shell system, both ends of roller 1 can be directly fixed to the inner walls of the outer shell system, making the installation of roller 1 more stable. Furthermore, installing both ends of roller 1 on the inner walls of the outer shell system also makes roller 1 independent of each other, reducing the impact of failures between roller 1. Moreover, when roller 1 malfunctions, it will not affect the other rollers 1, increasing the operational stability of the dryer. In addition, when repairing roller 1, the faulty roller 1 can be disassembled individually for inspection, reducing the workload and difficulty of inspection and improving the convenience of dryer maintenance; thus facilitating the operation and maintenance of the dryer.

[0050] A rotary connector 2 is provided at one end of the roller 1, and an inlet pipe and an outlet pipe are respectively connected to the rotary connector 2; the rotary connector 2 is rotatably connected to the drying system.

[0051] Rotary connector 2 is connected to roller 1 and is rotatably connected to roller 1. A heat source is connected to roller 1 via rotary connector 2. This allows the heat source to transfer heat into the interior of roller 1, and since rotary connector 2 is rotatably connected to roller 1, roller 1 can rotate while rotary connector 2 remains stationary and connected to the heat source.

[0052] The inlet and outlet pipes are connected to the heat source respectively. The heat source medium enters the inlet pipe from the heat source and then enters the inside of the roller 1. The heat is exchanged between the roller 1 and the wet material. Then the heat exchange medium is discharged from the outlet pipe from the roller 1. The cycle is repeated to complete the continuous heating of the roller 1.

[0053] The inlet pipe is connected to the hollow cavity inside the roller 1 through the rotary connector 2. The outlet pipe is connected to an external outlet pipe through the rotary connector 2. The external outlet pipe is located inside the roller 1, and the end of the external outlet pipe away from the outlet pipe is located near the lower end of the roller 1.

[0054] The rotary connector 2 contains two passages that are respectively connected to the inlet pipe and the outlet pipe, and the two passages are sealed to each other. Therefore, the heat source medium in the inlet pipe can enter the roller 1 through the rotary connector 2. After heat exchange, the heat source medium can be discharged from the outlet pipe without affecting its operation at the rotary connector 2.

[0055] Due to thermal expansion and contraction and the influence of gravity, the cooled heat source medium will accumulate at the lower end of roller 1. Therefore, an external discharge pipe is used to discharge the cooled heat source medium at the lower end, thereby reducing the residue of the cooled heat source medium inside roller 1. At the same time, it also promotes the circulation of the heat source medium from top to bottom in roller 1, improving the heat exchange efficiency of the heat source medium in roller 1, increasing the utilization rate of the heat source, and thus improving the working efficiency of the dryer.

[0056] The dryer includes a material feeding and scraping system; the material feeding and scraping system is used to convey wet material onto the roller 1; the material feeding and scraping system includes a material feeding tube 12 and a scraper 11 disposed on the side surface of the roller 1.

[0057] In one specific embodiment, the wet material is viscous, so when the wet material is conveyed onto the roller 1, it can adhere to the surface of the roller 1.

[0058] The feeding tube 12 is used to convey wet materials, which are viscous liquids and can therefore be conveyed using a pipeline. The end of the feeding tube 12 is located on the outer surface of the roller 1, allowing the wet materials to fall directly onto the roller 1 and adhere to the side surface of the roller 1.

[0059] When the wet material is heated and dried by the roller 1, the dry material is obtained. The dry material will adhere to the roller 1, and then the scraper 11 that is in contact with the side surface of the roller 1 will scrape the dry material off the roller 1, thereby removing the dry material from the roller.

[0060] By cooperating with the cloth tube 12 and the scraper 11, wet materials can be coated on the roller 1 and dry materials can be removed.

[0061] In the direction of movement of the wet material, the scraper 11 is located behind the distribution pipe 12.

[0062] When the wet material is conveyed from the feeding tube 12 to the roller 1, the wet material cannot cover the dried material. Therefore, the scraper 11 is in front of the roller 1, and then the roller 1 reaches the position of the feeding tube 12. The wet material is coated on the roller 1, and the roller 1 drives the wet material to rotate. Finally, it rotates to the position of the scraper 11.

[0063] The wet material is rotated by the roller 1. After the wet material is conveyed, the scraper 11 needs to scrape off the dry material before the wet material is applied.

[0064] The scraper 11 is arranged along the axial direction of the roller 1, and the length of the scraper 11 is adapted to the axial length of the roller 1; the scraper 11 abuts against the side surface of the roller 1.

[0065] The scraper 11 is used to scrape off the material on the roller 1. During the drying process, the rotational force of the roller 1 causes the wet material to flow on the roller 1, so the dry material will cover the edge of the side surface of the roller 1. In order to reduce the residue of dry material on the roller 1, the length of the scraper 11 is set to be adapted to the roller 1 so that the scraper 11 can remove the dry material on the roller 1 cleanly and reduce the residue of dry material.

[0066] The scraper 11 is brought into contact with the surface of the roller 1. When the roller 1 rotates, the scraper 11 can scrape the dry material from the surface of the roller 1, further reducing the residue of dry material on the scraper 11.

[0067] The dryer includes a material crushing system, which includes a crushing chamber 3 and a crushing shaft 4 located at the end of the scraper 11.

[0068] The scraper 11 can scrape the dried material obtained after drying on the roller 1 into the crushing chamber 3, and the crushing shaft 4 can impact the dry material to crush it.

[0069] The crushing chamber 3 is located below the roller 1. After the scraper 11 scrapes the dry material off the roller 1, the dry material will fall into the crushing chamber 3 under the action of gravity; the crushing chamber 3 collects the dry material.

[0070] The wet material is dried on roller 1 to obtain dry material, which will clump together. The dry material scraped off roller 1 will have a plate-like or sheet-like structure. After the clumped dry material falls into the crushing chamber 3, the crushing shaft 4 will rotate to crush the clumped dry material into particles or small fragments, making the dry material easier to transport.

[0071] The crushing shaft 4 is located inside the crushing chamber 3, and a screen 5 is provided below the crushing shaft 4. The screen 5 has screen holes to avoid the crushing shaft 4.

[0072] The crushing chamber 3 collects and contains dry materials, and then the crushing shaft 4 crushes the dry materials. This not only reduces leakage caused by dry material splashing during crushing, but also increases the amount of dry material that the crushing shaft 4 can crush, thus improving the working efficiency of the crushing shaft 4.

[0073] The crushing shaft 4 can hammer or impact dry materials. After the clumped, flaky dry materials enter the crushing chamber 3, they will be crushed into particles or small fragments by the crushing shaft 4. At the same time, the screen 5 can intercept and screen the large-sized clumps of dry materials, ensuring that the large-sized dry materials are crushed into smaller sizes by the crushing shaft 4 before passing through the screen 5. This further reduces the leakage of clumped dry materials from the gaps in the crushing shaft 4, improving the crushing effect and efficiency of the crushing shaft 4 and the crushing chamber 3 on dry materials.

[0074] The dryer includes a conveying system, which includes an auger chamber 6 located below the crushing chamber 3. An auger shaft is installed inside the auger chamber 6 and is arranged parallel to the crushing shaft 4.

[0075] A conveying auger is detachably connected to one end of the auger chamber 6; the conveying auger includes a sealed chamber 7 and a conveying shaft disposed therein.

[0076] The auger shaft is used to convey dry materials. After the dry materials are crushed and pass through the screen 5, they fall into the auger chamber 6. The auger shaft in the auger chamber 6 rotates, and the dry materials move along the auger shaft, thus realizing the conveying of dry materials.

[0077] Since the side surfaces of roller 1 are covered with dry material, the crushing chamber 3 located below roller 1 has a long, strip-shaped structure adapted to roller 1. This allows the dry material falling in a linear fashion to enter the crushing chamber 3. Similarly, the long, strip-shaped crushing chamber 3 reduces the space occupied in the outer shell system, saving space and reducing the material used in the crushing chamber 3, thus helping to lower the manufacturing cost of the dryer.

[0078] The crushed dry material will enter the auger chamber 6 from the crushing chamber 3 under the action of gravity. Therefore, the auger chamber 6 is set parallel to the bottom of the crushing chamber 3. At the same time, the auger chamber 6 is set with a structure and length that are compatible with the crushing chamber 3, so that the dry material in the crushing chamber 3 can smoothly and completely enter the auger chamber 6, reducing the residue of dry material in the crushing chamber 3.

[0079] In this application, a crushing shaft 4 is used to crush the dry material, a screen 5 is used to intercept and screen the dry material, and finally, an auger shaft adapted to the crushing chamber 3 is used to convey the dry material. This greatly improves the conveying efficiency of the dry material. At the same time, the small particle size of the dry material can minimize the possibility of blockage during transportation. Therefore, through the cooperation of the crushing chamber 3 and the auger chamber 6, a large amount of dry material can be conveyed simultaneously. Furthermore, the roller 1 in this application can be configured with a large-size structure, thereby simultaneously drying more wet material, thereby improving the drying speed and efficiency of the wet material.

[0080] The dryer includes a shell 9, the crushing chamber 3 and the auger chamber 6 are disposed inside the shell 9, the sealing chamber 7 is disposed outside the shell 9, and a connecting pipe 8 is provided between the sealing chamber 7 and the auger chamber 6, and the connecting pipe 8 is detachably connected to the sealing chamber 7.

[0081] The sealed chamber 7 is used to convey the material in the auger chamber 6. Both the crushing chamber 3 and the auger chamber 6 are located below the roller 1. Therefore, multiple crushing chambers 3 and auger chambers 6 are provided. Preferably, the number of crushing chambers 3 and auger chambers 6 is equal to the number of rollers 1.

[0082] Sealed chamber 7 is connected to auger chamber 6; and sealed chamber 7 is connected to all auger chambers 6. Therefore, after the crushed dry material falls into auger chamber 6, it will be simultaneously conveyed by auger chamber 6 to sealed chamber 7. Then sealed chamber 7 collects all the dry material.

[0083] Connecting pipe 8 penetrates the shell 9, and dry materials inside the shell 9 are transported to the outside of the shell 9 using connecting pipe 8. Then, sealed chamber 7 is used on the outside of the shell 9 for centralized collection.

[0084] Since all the dry material gathers in the sealed chamber 7, the amount of dry material in the sealed chamber 7 is the largest, and because the dry material is in the form of solid particles, it is most prone to clogging. In this application, the sealed chamber 7 is detachably connected to the connecting pipe. When clogging occurs in the sealed chamber 7, it can be removed from the connecting pipe 8 for unblocking. Furthermore, when the sealed chamber 7 is removed, it is located outside the housing 9, thus having almost no impact on the drying system inside the housing 9. It is foreseeable that the structure in this application allows for the disassembly and maintenance of the sealed chamber 7 while the dryer is drying wet materials, resolving the problem of dry material clogging in the sealed chamber 7. This greatly improves the dryer's ability to handle material clogging.

[0085] A support frame is provided inside the housing 9, and the scraper 11, the material distribution pipe 12, the crushing chamber 3 and the auger chamber 6 are all fixed on the support frame.

[0086] The support frame is fixed to the housing 9, and is used to fix the scraper 11 and the material distribution pipe 12, improving the stability of the scraper 11 and the material distribution pipe 12 and reducing the possibility of movement. The crushing chamber 3 and the auger chamber 6 are fixed to the support frame. Compared with installing the crushing chamber 3 and the auger chamber 6 on the housing 9, it is more convenient to install and fix the auger chamber 6 and the crushing chamber 3, and also makes the maintenance of the crushing chamber 3 and the auger chamber 6 more convenient.

[0087] In summary, this application provides a dryer in which wet material is conveyed into the housing 9 through the distribution pipe 12 during use. The wet material is then discharged from the distribution pipe 12 and adheres to the roller 1. As the roller 1 rotates, the wet material absorbs the heat from the roller 1, thereby evaporating the liquid in the wet material and drying it into dry material.

[0088] The heat generated in the heat source is transported through the heat source medium. The heat source medium enters the rotary connector 2 through the inlet pipe, and then enters the inside of the roller 1, thereby heating the roller 1. After the heat source medium is cooled, it falls to the lower end of the roller 1 and is transported out of the roller 1 through the outlet pipe, and finally discharged from the outlet pipe.

[0089] The dry material on roller 1 is scraped off by scraper 11 and falls into crushing chamber 3. It is then impacted by crushing shaft 4 to reduce the particle size, making it easier to convey. The dry material is then intercepted and screened by screen 5, reducing the possibility of leakage from crushing shaft 4. After passing through screen 5, the dry material falls into auger chamber 6. Conveyed by auger shaft, all the dry material in auger chamber 6 enters sealed chamber 7 through connecting pipe 8, where the dry material in the dryer is collected.

[0090] refer to Figure 1 The dryer includes a drying system, a material feeding and scraping system, a material crushing system, and a conveying system. Wet material is conveyed from the material feeding pipe 12 of the material feeding and scraping system onto the roller 1. The wet material adheres to the outer surface of the roller 1. Water vapor enters the hollow chamber of the roller 1 through the inlet pipe and rotary connector 2, heating the roller 1. The roller 1 then heats the wet material, causing the moisture in the wet material to evaporate and be removed.

[0091] After drying, the material is scraped off the roller 1 by the scraper 11. The dry material slides along the scraper 11 into the crushing chamber 3. The crushing shaft 4 rotates continuously and impacts the dry material falling into the crushing chamber 3, causing the large particles of dry material to be crushed. The crushed small particles will pass through the screen 5, while the large particles will be intercepted by the screen 5 and continue to be crushed by the crushing shaft 4.

[0092] The dry material passing through screen 5 enters the lower auger chamber 6 and is conveyed out by the auger shaft within auger chamber 6, then through the connecting pipe 8 penetrating the shell 9. The material then enters the sealed chamber 7 located outside the shell 9, and is transported by a conveyor shaft. If the conveying auger becomes clogged or damaged during use, it can be directly removed from the connecting pipe 8, replaced with a new conveying auger, and installed for immediate use. This significantly reduces the time lost due to auger blockage or malfunction.

[0093] This specific embodiment is merely an explanation of this application and is not intended to limit it. After reading this specification, those skilled in the art can make modifications to this embodiment without contributing any inventive step, but such modifications are protected by patent law as long as they fall within the scope of the claims of this application.

Claims

1. A roller dryer for drying treatment of a wet material, characterized in that, The drying machine comprises a drying system; the drying system comprises a roller, and the wet material can be attached to the side surface of the roller; The roller can rotate around its own axis.

2. Dryer according to claim 1, characterized in that The roller is a hollow structure, and the inside of the roller is used for passing a heat source; Preferably, a plurality of rollers are provided, and the plurality of rollers are arranged in parallel side by side.

3. The dryer of claim 1, wherein The drying machine comprises a shell system, and the drying system is arranged inside the shell system; the shell system is a columnar structure, and the axis of the roller is arranged perpendicularly to the axis of the shell system.

4. The dryer of claim 1, wherein A rotating connector is arranged at one end of the roller, and an inlet pipe and an outlet pipe are respectively connected to the rotating connector; the rotating connector is rotationally connected to the drying system.

5. The dryer of claim 4, wherein The inlet pipe is in communication with the hollow chamber inside the roller through the rotating connector, and the outlet pipe is in communication with an external outlet pipe through the rotating connector; the external outlet pipe is located inside the roller, and the end of the external outlet pipe away from the outlet pipe is located at a position close to the lower end of the roller.

6. The dryer of claim 1, wherein The drying machine comprises a cloth scraping system; the cloth scraping system is used for conveying the wet material to the roller; and the cloth scraping system comprises a cloth pipe and a scraper arranged on the side surface of the roller. Preferably, in the movement direction of the wet material, the scraper is located behind the cloth pipe.

7. The dryer of claim 6, wherein The scraper is arranged in the axial direction of the roller, and the length of the scraper is adapted to the axial length of the roller; the scraper is in abutment with the side surface of the roller.

8. The dryer according to any one of claims 1 to 7, characterized in that The drying machine comprises a material crushing system, and the material crushing system comprises a crushing bin at the end of the scraper and a crushing shaft; The scraper can scrape the dry material obtained after being dried on the roller into the crushing bin, and the crushing shaft can impact the dry material to crush it; Preferably, the crushing shaft is located inside the crushing bin, and a screen is arranged below the crushing shaft; the screen is provided with screen holes for avoiding the crushing shaft.

9. The dryer of claim 8, wherein The drying machine comprises a conveying system, and the conveying system comprises an auger bin arranged below the crushing bin; an auger shaft is arranged inside the auger bin, and the auger shaft is arranged in parallel to the crushing shaft; A conveying auger is detachably connected to one end of the auger bin; the conveying auger comprises a sealing bin and a conveying shaft arranged inside the sealing bin.

10. The dryer of claim 9, wherein The drying machine comprises a shell, and the crushing bin and the auger bin are arranged inside the shell; the sealing bin is arranged outside the shell, and a connecting pipe is arranged between the sealing bin and the auger bin; the connecting pipe is detachably connected to the sealing bin; Preferably, a support frame is arranged inside the shell, and the scraper, the cloth pipe, the crushing bin and the auger bin are all fixed on the support frame.

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