Rotary drying equipment and operation method

Abstract

The invention discloses rotary drying equipment which comprises a supporting bracket, a drying machine body, a material conveying component, an overturning component and a high-temperature air inlet pump, and a main controller is mounted on the supporting bracket; the drying machine body is installed on the supporting bracket, a drying cavity and a medium cavity are formed in the drying machine body, the drying cavity is communicated with the medium cavity, the drying cavity is provided with a discharging port, and a reversible drying agent is arranged in the medium cavity; the material conveying part comprises a smashing machine, the smashing machine is installed on one side of the drying machine body, and the smashing machine is suitable for conducting smashing treatment on materials and conveying the materials into the drying cavity; the overturning component comprises an overturning shovel, the overturning shovel comprises a main support and a plurality of arc-shaped shovel plates, the main support is arranged in the drying cavity, the problem of uneven heating caused by caking of high-viscosity materials can be effectively solved, water vapor dynamic adsorption and heat energy recovery are achieved, and the drying efficiency and uniformity are remarkably improved.

Description

Technical Field

[0001] The invention relates to rotary drying equipment and an operating method, and belongs to the technical field of drying equipment. Background Art

[0002] Currently, drying equipment is widely used in industrial and agricultural production to remove moisture from materials for preservation, transportation, or improved material properties. However, conventional drying equipment can suffer from low efficiency, high energy consumption, and uneven material handling when processing certain special materials, such as sticky, easily agglomerated, or granular materials. A search revealed that Chinese patent publication number CN108981325A discloses a rotary dryer for chemical plants. In this patent, the dryer opens a chamber door, and the materials to be dried are added to the dryer through a feed chute. The feed port and chamber door are then closed. The heating intensity of the heating device is set using a display and control panel. A first motor is activated, and a belt drives a rotating shaft, which in turn rotates the drying barrel. The insulating layer slows down heat dissipation within the drying barrel. Humidity and temperature sensors monitor the humidity and temperature within the drying barrel in real time. After drying is complete, the discharge port and discharge pipe are connected, and a second motor is activated, causing a hydraulic rod to retract to the left, which in turn drives a scraper, moving the materials within the drying barrel to the discharge port and out through the discharge pipe. However, the patent uses a rotating drying barrel structure, which cannot achieve sufficient crushing and dispersion of high-viscosity or easily agglomerated materials. The materials are prone to form internal agglomerates during the drying process, resulting in uneven heating. Its drying process relies on a single hot air circulation, and when processing high-humidity materials, local steam accumulation is prone to occur and the steam cannot be effectively handled. Summary of the Invention

[0003] The technical problem to be solved by the present invention is to overcome the defects of the existing technology and provide a rotary drying equipment and operation method, which can effectively solve the problem of uneven heating caused by agglomeration of high-viscosity materials, realize dynamic adsorption of water vapor and heat energy recovery, and significantly improve drying efficiency and uniformity.

[0004] In order to solve the above technical problems, the technical solution of the present invention is: a rotary drying device, comprising: A supporting bracket, on which a main controller is installed; A dryer body, the dryer body being mounted on the support bracket, the dryer body being provided with a drying chamber and a medium chamber, the drying chamber being in communication with the medium chamber, the drying chamber being provided with a discharge port, and the medium chamber being provided with a reversible desiccant; A material conveying component, comprising a pulverizer, the pulverizer being mounted on one side of the dryer body and being adapted to pulverize the material and convey it to the drying chamber; A turning component, comprising a turning shovel, comprising a main support and a plurality of arc-shaped shovel plates, wherein the main support is arranged in the drying chamber, the main support is parallel to the axis of the drying chamber, the plurality of arc-shaped shovel plates are evenly distributed along the length direction of the main support at equal intervals, and the main support is adapted to rotate to drive the turning shovel to rotate synchronously, thereby turning over the material in the drying chamber; A high-temperature air intake pump is installed on the support bracket, the high-temperature air intake pump is electrically connected to the main controller, the air inlet of the high-temperature air intake pump is connected to the drying chamber, and the high-temperature air intake pump is suitable for conveying high-temperature gas into the drying chamber to dry the material at high temperature, and the water vapor dried out is absorbed by the reversible desiccant.

[0005] Furthermore, in order to prevent uneven heating caused by material agglomeration, the material conveying component also includes a conveying channel. The crusher is provided with a crushing chamber. One end of the conveying channel is connected to the crushing chamber, and the other end of the conveying channel is connected to the drying chamber. The crusher is suitable for conveying the crushed material to the drying chamber through the conveying channel.

[0006] Furthermore, in order to achieve better drying, a crushing mechanism is provided in the crushing chamber, the crushing mechanism comprising at least one crushing main shaft, the crushing main shaft being rotatably mounted on the crusher, at least one first crushing roller and at least one second crushing roller being mounted on the crushing main shaft, the first crushing roller being vertically mounted on the crushing main shaft, and the second crushing roller being obliquely mounted on the crushing main shaft; The crushing main shaft is suitable for rotating and driving the first crushing roller and the second crushing roller to rotate so as to crush the agglomerated materials in the crushing chamber.

[0007] Furthermore, in order to ensure a smooth conveying process, a rotary drying device further comprises a conveying main shaft, the conveying main shaft being rotatably mounted in the crushing chamber and the conveying channel, the conveying main shaft being provided with a continuous spiral conveying blade, the conveying main shaft being adapted to rotate and drive the continuous spiral conveying blade to rotate so as to convey the material in the crushing chamber to the drying chamber; A first one-way valve is provided in the delivery channel.

[0008] Furthermore, the flipping component also includes a transmission shaft and a drive motor. The flipping shovel is movably connected to the inner wall of the drying chamber through the transmission shaft and is connected to the movable end of the drive motor. The drive motor is installed on the support bracket and electrically connected to the main controller.

[0009] Furthermore, in order to control the drying process, a humidity sensor is provided in the medium cavity, the humidity sensor being electrically connected to the main controller, and the humidity sensor being adapted to monitor the humidity in the medium cavity and transmit humidity information to the main controller. Furthermore, in order to expand the use of the reversible desiccant, a heating tube is provided in the medium cavity, and the heating tube is electrically connected to the main controller. The main controller is adapted to control the heating tube to heat the reversible desiccant according to humidity information.

[0010] Furthermore, at least one screen is provided between the drying chamber and the medium chamber, and the screen is suitable for separating the material and the reversible desiccant.

[0011] Furthermore, in order to achieve effective recovery and utilization of water vapor, a steam outlet is provided at the top of the medium cavity, and a water vapor processing channel extends outward from the steam outlet; A second one-way valve is provided in the water vapor processing channel, and the second one-way valve separates the water vapor processing channel into a first processing channel and a second processing channel; A condensation pipe is provided in the second processing channel, and the second processing channel is externally connected to a condensation water collection box.

[0012] The present invention also provides an operating method of a rotary drying device, comprising the following steps: S1. Equipment initialization: The main controller performs a self-check on the drive motor, the high-temperature air intake pump, the heating tube, the humidity sensor, etc. and initializes them to normal status; S2, material crushing and conveying: the crusher is turned on, and the material to be dried is added to the feed port of the crusher. The crushing main shaft drives the first crushing roller and the second crushing roller to crush the material; The crushed material is transported from the transport channel to the drying chamber through the first one-way valve and the continuous spiral transport blades; S3, high-temperature gas drying and moisture absorption: the main controller turns on the high-temperature air inlet pump to deliver the high-temperature air heated to a set temperature into the drying chamber through the air inlet, thereby drying the material in the drying chamber at high temperature; The water vapor generated by drying enters the medium cavity through the screen and is adsorbed by the reversible desiccant; S4, drying chamber rotation and flipping: the main controller controls the drive motor to drive the transmission shaft and the flip shovel to rotate synchronously, and the arc-shaped shovel plate continuously flips the material to ensure that the material is evenly heated; S5, humidity monitoring and reversible desiccant regeneration: the humidity sensor monitors the humidity in the medium cavity in real time and feeds back the humidity information to the main controller; When the humidity in the medium cavity is higher than a predetermined upper limit, the main controller controls the heating tube to heat the reversible desiccant to a regeneration temperature, so that the water vapor adsorbed by the reversible desiccant is desorbed and flows to the water vapor treatment channel; S6, water vapor treatment and recovery: the desorbed water vapor enters the water vapor treatment channel through the steam outlet, flows through the second one-way valve to the second treatment channel where the condenser is located, condenses into water under the action of the condenser and collects in the condensed water collection tank; S7, unloading: After the material is dried for a period of time, the sampling port is opened to take samples and detect the humidity. When the humidity of the material meets the requirements, all equipment is closed through the main control, the discharge port is opened, and the dried product is unloaded.

[0013] After adopting the above technical solution, the present invention has the following beneficial effects: 1. In the present invention, the high-viscosity material is crushed in multiple directions through the synergistic action of the conveying spindle and the crushing spindle. Combined with the first one-way valve to control the unidirectional conveying of the material, it effectively solves the problems of conveying jam and uneven heating caused by material agglomeration in traditional equipment. The equally spaced arc-shaped shovels perform a flipping motion in the drying chamber, and cooperate with the high-temperature gas to form a forced convection drying environment, so that the material is dried in a discrete state in the air, thereby improving the drying efficiency.

[0014] 2. In the present invention, the humidity of the medium cavity is monitored in real time by a humidity sensor, and the main controller controls the heating tube to regenerate the adsorption saturated reversible desiccant, thereby extending the service life of the reversible desiccant; Part of the water vapor dried out in the drying chamber is absorbed by the reversible desiccant, and part of it enters the water vapor treatment channel through the steam outlet to condense. Subsequently, the water vapor precipitated by the reversible desiccant after heating also enters the water vapor treatment channel through the steam outlet to condense. The two further accelerate the collection of water vapor and the drying process. The water vapor generated in the reversible dryer and the drying chamber is condensed into condensed water in the second processing channel through the second one-way valve, and the condensed water is then collected in the condensed water collection box for reuse. BRIEF DESCRIPTION OF THE DRAWINGS

[0015] Figure 1 A three-dimensional rotary drying device of the present invention Figure 1 ; Figure 2 A three-dimensional rotary drying device of the present invention Figure 2 ; Figure 3 This is a front view of a rotary drying device of the present invention; Figure 4 A full cross-sectional view of a rotary drying device of the present invention; Figure 5It is a structural schematic diagram of the turning component of the present invention; Figure 6 It is a structural schematic diagram of the material conveying component of the present invention; Figure 7 It is a structural schematic diagram of the water vapor processing channel of the present invention. DETAILED DESCRIPTION

[0016] In order to make the contents of the present invention more clearly understood, the present invention is further described in detail below based on specific embodiments in conjunction with the accompanying drawings. Example

[0017] like Figure 1-7 , a rotary drying device, comprising: Support bracket 1, a main controller is installed on the support bracket 1; The dryer body 2 is mounted on the support bracket 1. The dryer body 2 is provided with a drying chamber 21 and a medium chamber 22. The drying chamber 21 is connected to the medium chamber 22. The drying chamber 21 is provided with a discharge port. The medium chamber 22 is provided with a reversible desiccant. Material conveying components, including a crusher 31, which is installed on one side of the dryer body 2. The crusher 31 is suitable for crushing the material and conveying it to the drying chamber 21; The turning component includes a turning shovel, which includes a main support 41 and multiple curved shovel plates 42. The main support 41 is arranged in the drying chamber 21, and the main support 41 is parallel to the axis of the drying chamber 21. The multiple curved shovel plates 42 are evenly distributed along the length of the main support 41 at equal intervals. The main support 41 is suitable for rotating to drive the turning shovel to rotate synchronously, thereby turning the material in the drying chamber 21; The high-temperature air intake pump 5 is installed on the support bracket 1. The high-temperature air intake pump 5 is electrically connected to the main controller. The air inlet of the high-temperature air intake pump 5 is connected to the drying chamber 21. The high-temperature air intake pump 5 is suitable for conveying high-temperature gas into the drying chamber 21 to dry the material at high temperature. The water vapor dried out is absorbed by the reversible desiccant.

[0018] Specifically, if Figure 6 As shown, the material conveying component also includes a conveying channel 32, and the crusher 31 is provided with a crushing chamber 311. One end of the conveying channel 32 is connected to the crushing chamber 311, and the other end of the conveying channel 32 is connected to the drying chamber 21. The crusher 31 is suitable for conveying the crushed material to the drying chamber 21 through the conveying channel 32.

[0019] Specifically, if Figure 6As shown, a crushing mechanism is provided in the crushing chamber 311, and the crushing mechanism includes two crushing main shafts 33, which are rotatably mounted on the crusher 31. At least one first crushing roller 34 and at least one second crushing roller 35 are mounted on the crushing main shafts 33. The first crushing roller 34 is vertically mounted on the crushing main shafts 33, and the second crushing roller 35 is obliquely mounted on the crushing main shafts 33. The crushing main shaft 33 is adapted to rotate and drive the first crushing roller 34 and the second crushing roller 35 to rotate so as to crush the agglomerated materials in the crushing chamber 311 .

[0020] Specifically, if Figure 6 As shown, a rotary drying device further includes two conveying spindles 36, which are rotatably mounted in the crushing chamber 311 and the conveying channel 32. The conveying spindles 36 are provided with continuous spiral conveying blades 361. The conveying spindles 36 are adapted to rotate and drive the continuous spiral conveying blades 361 to rotate so as to convey the material in the crushing chamber 311 to the drying chamber 21. A first one-way valve is provided in the delivery channel 32 .

[0021] In this embodiment, a crushing drive device is further provided on one side of the crusher, which includes a crushing drive motor, a first driving wheel, a first synchronous belt, a first transmission assembly and a second transmission assembly. The first transmission assembly includes a first driven wheel, a second driving wheel, a second driven wheel, a second synchronous belt and a third driving wheel. The second transmission assembly includes a third synchronous belt, a third driven wheel, a fourth driving wheel, a fourth driven wheel and a fourth synchronous belt. The first driving wheel is connected to the movable end of the crushing drive motor, the first driving wheel is connected to the first driven wheel through the first synchronous belt, the first driven wheel is coaxially arranged with the second driving wheel and is connected to one of the conveying main shafts 36, the second driving wheel is connected to the second driven wheel through the second synchronous belt, the second driven wheel is coaxially arranged with the third driving wheel and is connected to one of the crushing main shafts 33, the third driving wheel is connected to the third driven wheel through the third synchronous belt, the third driven wheel is coaxially arranged with the fourth driving wheel and is connected to another conveying main shaft 36, the fourth driving wheel is connected to the fourth driven wheel through the fourth synchronous belt, and the fourth driven wheel is connected to another crushing main shaft 33; The crushing drive motor drives the entire transmission to enable the crusher to crush the sticky materials.

[0022] like Figure 1 As shown, in this embodiment, the crushing drive device may further include a driving turntable, a multi-stage rocker and a connecting rod mechanism. The driving turntable is fixed to the output shaft of the crushing drive motor, and an eccentric hinge point is provided on its circumferential edge. The multi-stage rocker is connected to the eccentric hinge point of the driving turntable via a hinge shaft, and the other end is connected to the connecting rod mechanism via a ball joint. The multi-section rocker is connected to the two crushing main shafts 33, the connecting rod mechanism is connected to the multi-section rocker, and the connecting rod mechanism is connected to the conveying main shaft 36. This composite transmission structure can effectively enhance the shearing and crushing effect of high-viscosity materials and prevent the materials from forming a sticky layer on the inner wall of the crushing chamber 311.

[0023] Specifically, if Figure 5 As shown, the flipping component also includes a transmission shaft 43 and a drive motor 44. The flipping shovel is movably connected to the inner wall of the drying chamber 21 through the transmission shaft 43 and is connected to the movable end of the drive motor 44. The drive motor 44 is installed on the support bracket 1 and is electrically connected to the main controller.

[0024] In this embodiment, the flipping component also includes a flipping driving wheel, a flipping driven wheel and a flipping synchronous belt. The flipping driving wheel is connected to the active end of the drive motor 44, the flipping driven wheel is connected to the transmission shaft 43, and the flipping synchronous belt is suitable for connecting the flipping driving wheel and the flipping driven wheel.

[0025] Specifically, if Figure 4 As shown, the medium cavity 22 is provided with a humidity sensor 221, the humidity sensor 221 is electrically connected to the main controller, the humidity sensor 221 is suitable for monitoring the humidity in the medium cavity 22 and transmits the humidity information to the main controller. Specifically, if Figure 4 As shown, a heating tube 222 is provided in the medium cavity 22 , and the heating tube 222 is electrically connected to the main controller. The main controller is adapted to control the heating tube 222 to heat the reversible desiccant according to humidity information.

[0026] Specifically, six screens are provided between the drying chamber 21 and the medium chamber 22. The screens are suitable for separating the material and the reversible desiccant. The screens are provided to prevent the material from entering the medium chamber during the drying process and causing contamination of the reversible desiccant. The operator can select screens of different specifications according to the particle size of the material to be dried.

[0027] Specifically, if Figure 1-7 As shown, a steam outlet is further provided at the top of the medium cavity 22, and a water vapor processing channel 5 extends outward from the steam outlet; A second one-way valve 53 is provided in the water vapor processing channel 5, and the second one-way valve 53 separates the water vapor processing channel 5 into a first processing channel 51 and a second processing channel 52; A condensation pipe 54 is provided in the second processing channel 52 , and a condensation water collection tank 55 is externally connected to the second processing channel 52 .

[0028] In this embodiment, the high-viscosity material is multi-directionally crushed by the synergistic action of the conveying spindle 36 and the crushing spindle 33, and the first one-way valve is used to control the one-way conveying of the material, which effectively solves the problems of conveying jam and uneven heating caused by material agglomeration in traditional equipment. The equally spaced arc-shaped shovel plates 42 perform a flipping motion in the drying chamber 21, and cooperate with the high-temperature gas to form a forced convection drying environment, so that the material is dried in a discrete state in the air, thereby improving the drying efficiency.

[0029] In this embodiment, the humidity of the medium chamber 22 is monitored in real time by the humidity sensor 221, and the main controller controls the heating tube 222 to regenerate the reversible desiccant that has been saturated with adsorption, thereby extending the service life of the reversible desiccant. Part of the water vapor dried out in the drying chamber 21 is absorbed by the reversible desiccant, and part of it enters the water vapor processing channel 5 through the steam outlet to condense. Subsequently, the water vapor precipitated by the reversible desiccant after heating also enters the water vapor processing channel 5 through the steam outlet to condense. The two further accelerate the collection of water vapor and the drying process. The water vapor generated in the reversible dryer and the drying chamber 21 is condensed into condensed water in the second processing channel 52 through the second one-way valve 53, and the condensed water is then collected in the condensed water collection tank 55 for reuse. Example

[0030] This embodiment introduces an operating method of the rotary drying device of embodiment 1, which includes the following steps: S1. Equipment initialization: The main controller performs a self-check on the drive motor 44, the high-temperature air intake pump 5, the heating tube 222 and the humidity sensor 221 and initializes them to normal status; S2. Material crushing and conveying: Turn on the crusher 31, add the material to be dried to the feed port of the crusher 31, and the crushing main shaft 33 drives the first crushing roller 34 and the second crushing roller 35 to crush the material; The crushed material is transported from the conveying channel 32 to the drying chamber 21 through the first one-way valve and the continuous spiral conveying blade 361; S3, high-temperature gas drying and moisture absorption: The main controller turns on the high-temperature air inlet pump 5, and delivers the high-temperature gas heated to the set temperature to the drying chamber 21 through the air inlet, thereby drying the material in the drying chamber 21 at high temperature; The water vapor generated by drying enters the medium cavity 22 through the screen and is adsorbed by the reversible desiccant; S4, drying chamber 21 rotation and flipping: the main controller controls the drive motor 44 to drive the transmission shaft 43 and the flip shovel to rotate synchronously, and the arc-shaped shovel plate 42 continuously flips the material to ensure that the material is heated evenly; S5. Humidity monitoring and reversible desiccant regeneration: The humidity sensor 221 monitors the humidity in the medium cavity 22 in real time and feeds the humidity information back to the main controller; When the humidity in the medium cavity 22 is higher than the predetermined upper limit, the main controller controls the heating tube 222 to heat the reversible desiccant to the regeneration temperature, so that the water vapor adsorbed by the reversible desiccant is desorbed and flows to the water vapor processing channel 5; S6. Water vapor treatment and recovery: The desorbed water vapor enters the water vapor treatment channel 5 through the steam outlet, flows through the second one-way valve 53 to the second treatment channel 52 where the condenser 54 is located, condenses into water under the action of the condenser 54 and collects in the condensed water collection tank 55; S7. Unloading: After the material has been dried for a certain period of time, open the sampling port to take samples and detect the humidity. When the humidity of the material meets the requirements, shut down all equipment through the main control, open the discharge port, and unload the dried product.

[0031] The above specific embodiments further illustrate the technical problems, technical solutions and beneficial effects solved by the present invention. It should be understood that the above are only specific embodiments of the present invention and are not intended to limit the present invention. Any modifications, equivalent substitutions, improvements, etc. made within the spirit and principles of the present invention should be included in the scope of protection of the present invention.

Claims

1. A rotary drying device, characterized in that: include: A supporting bracket (1), wherein a main controller is mounted on the supporting bracket (1); A dryer body (2), the dryer body (2) being mounted on the support bracket (1), the dryer body (2) being provided with a drying chamber (21) and a medium chamber (22), the drying chamber (21) being in communication with the medium chamber (22), the drying chamber (21) being provided with a discharge port, and the medium chamber (22) being provided with a reversible desiccant; A material conveying component, the material conveying component comprising a crusher (31), the crusher (31) being installed on one side of the dryer body (2), the crusher (31) being suitable for crushing the material and conveying it to the drying chamber (21); A turning component, the turning component includes a turning shovel, the turning shovel includes a main support (41) and a plurality of arc-shaped shovel plates (42), the main support (41) is arranged in the drying chamber (21), the main support (41) is parallel to the axis of the drying chamber (21), the plurality of arc-shaped shovel plates (42) are evenly distributed at equal intervals along the length direction of the main support (41), the main support (41) is suitable for rotating to drive the turning shovel to rotate synchronously, thereby turning over the material in the drying chamber (21); A high-temperature air intake pump (5), the high-temperature air intake pump (5) is installed on the support bracket (1), the high-temperature air intake pump (5) is electrically connected to the main controller, the air inlet of the high-temperature air intake pump (5) is connected to the drying chamber (21), and the high-temperature air intake pump (5) is suitable for conveying high-temperature gas into the drying chamber (21) to dry the material at high temperature, and the water vapor dried out is absorbed by the reversible desiccant.

2. A rotary drying device according to claim 1, characterized in that: The material conveying component further includes a conveying channel (32), the pulverizer (31) is provided with a pulverizing chamber (311), one end of the conveying channel (32) is communicated with the pulverizing chamber (311), and the other end of the conveying channel (32) is communicated with the drying chamber (21), and the pulverizer (31) is suitable for conveying the crushed material to the drying chamber (21) through the conveying channel (32).

3. A rotary drying device according to claim 2, characterized in that: A crushing mechanism is provided in the crushing chamber (311), the crushing mechanism comprising at least one crushing main shaft (33), the crushing main shaft (33) being rotatably mounted on the crusher (31), at least one first crushing roller (34) and at least one second crushing roller (35) being mounted on the crushing main shaft (33), the first crushing roller (34) being vertically mounted on the crushing main shaft (33), and the second crushing roller (35) being obliquely mounted on the crushing main shaft (33); The crushing main shaft (33) is suitable for rotating to drive the first crushing roller (34) and the second crushing roller (35) to rotate so as to crush the agglomerated materials in the crushing chamber (311).

4. A rotary drying device according to claim 2, characterized in that: The machine also includes a conveying main shaft (36), the conveying main shaft (36) being rotatably mounted in the crushing chamber (311) and the conveying channel (32), the conveying main shaft (36) being provided with a continuous spiral conveying blade (361), the conveying main shaft (36) being adapted to rotate and drive the continuous spiral conveying blade (361) to rotate so as to convey the material in the crushing chamber (311) to the drying chamber (21); A first one-way valve is provided in the delivery channel (32).

5. The rotary drying device according to claim 1, characterized in that: The flipping component further includes a transmission shaft (43) and a drive motor (44). The flipping shovel is movably connected to the inner wall of the drying chamber (21) via the transmission shaft (43) and is connected to the movable end of the drive motor (44). The drive motor (44) is mounted on the support bracket (1) and is electrically connected to the main controller.

6. The rotary drying device according to claim 1, characterized in that: A humidity sensor (221) is provided in the medium cavity (22), the humidity sensor (221) is electrically connected to the main controller, and the humidity sensor (221) is suitable for monitoring the humidity in the medium cavity (22) and transmitting humidity information to the main controller.

7. The rotary drying device according to claim 1, characterized in that: A heating tube (222) is provided in the medium cavity (22), the heating tube (222) is electrically connected to the main controller, and the main controller is suitable for controlling the heating tube (222) to heat the reversible desiccant according to humidity information.

8. The rotary drying device according to claim 1, characterized in that: At least one screen is provided between the drying chamber (21) and the medium chamber (22), and the screen is suitable for separating the material and the reversible desiccant.

9. The rotary drying device according to claim 1, characterized in that: A steam outlet is also provided at the top of the medium cavity (22), and a water vapor processing channel (5) extends outward from the steam outlet; A second one-way valve (53) is provided in the water vapor processing channel (5), and the second one-way valve (53) separates the water vapor processing channel (5) into a first processing channel (51) and a second processing channel (52); A condensation pipe (54) is provided in the second processing channel (52), and the second processing channel (52) is externally connected to a condensed water collection box (55).

10. An operating method of a rotary drying device according to any one of claims 1 to 9, characterized in that: The following steps are involved: S1, equipment initialization: the main controller performs a self-check on the drive motor (44), the high-temperature air intake pump (5), the heating tube (222), the humidity sensor (221), etc. and initializes them to a normal state; S2, material crushing and conveying: the crusher (31) is turned on, and the material to be dried is added to the feed port of the crusher (31), and the crushing main shaft (33) drives the first crushing roller (34) and the second crushing roller (35) to crush the material; The crushed material is transported from the transport channel (32) to the drying chamber (21) via the first one-way valve and the continuous spiral transport blade (361); S3, high-temperature gas drying and moisture absorption: the main controller turns on the high-temperature air inlet pump (5), and delivers the high-temperature gas heated to a set temperature into the drying chamber (21) through the air inlet, thereby performing high-temperature drying on the material in the drying chamber (21); Water vapor generated by drying enters the medium cavity (22) through the screen and is adsorbed by the reversible desiccant; S4, drying chamber (21) rotation and flipping: the main controller controls the driving motor (44) to drive the transmission shaft (43) and the flip shovel to rotate synchronously, and the arc-shaped shovel plate (42) continuously flips the material to ensure that the material is heated evenly; S5, humidity monitoring and reversible desiccant regeneration: the humidity sensor (221) monitors the humidity in the medium cavity (22) in real time and feeds back the humidity information to the main controller; When the humidity in the medium cavity (22) is higher than a predetermined upper limit, the main controller controls the heating tube (222) to heat the reversible desiccant to a regeneration temperature, so that the water vapor adsorbed by the reversible desiccant is desorbed and flows to the water vapor processing channel (5); S6, water vapor treatment and recovery: the desorbed water vapor enters the water vapor treatment channel (5) through the steam outlet, flows through the second one-way valve (53) to the second treatment channel (52) where the condenser (54) is located, and condenses into water under the action of the condenser (54) and collects in the condensed water collection tank (55); S7, unloading: After the material is dried for a period of time, the sampling port is opened to take samples and detect the humidity. When the humidity of the material meets the requirements, all equipment is closed through the main control, the discharge port is opened, and the dried product is unloaded.

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