Drying system and using method thereof

Abstract

The invention provides a drying system and a using method thereof. The drying system comprises a drying box internally provided with a drying cavity, a first induced draft fan, a gas-water separator, a first gas inlet pipe, a first exhaust pipe and a connecting pipe. A first feeding hole, a first discharging hole, a first air inlet hole and a first exhaust hole are formed in the drying box, and materials can enter the drying cavity from the first feeding hole and are discharged out of the drying cavity through the first discharging hole. One end of the first air inlet pipe is connected to the first air inlet, the other end of the first air inlet pipe is in a free state, one end of the first exhaust pipe is connected to the first exhaust hole, the other end of the first exhaust pipe is connected to an air inlet of the air-water separator, one end of the connecting pipe is connected to an exhaust port of the air-water separator, and the other end of the connecting pipe is connected to an air inlet of the first induced draft fan. According to the invention, the influence on the external environment can be avoided, the labor capacity can be reduced, the safety is improved, and the energy loss can be reduced.

Description

Technical Field

[0001] This invention belongs to the field of material drying technology, specifically relating to a drying system and its usage method. Background Technology

[0002] Currently, the drying / cooling and dehumidification of granular materials such as grains are achieved by supplying hot air to the drying chamber through a blower and expelling the humidified gas through an exhaust vent to maintain a dry environment inside the chamber. With this technology, the entire drying system (including the drying chamber and connecting pipes) is under positive pressure. This can easily lead to hot air and material dust leaking out from the gaps between system components, impacting the external environment, compromising safety, and causing energy loss. Summary of the Invention

[0003] This invention provides a drying system and its usage method, which can not only avoid impacting the external environment, but also reduce labor and improve safety, while also reducing energy loss.

[0004] A drying system for drying materials includes: a drying chamber with a drying cavity inside, a first induced draft fan, an air-water separator, a first air inlet pipe, a first exhaust pipe, and a connecting pipe; The drying chamber is provided with a first inlet hole, a first outlet hole, a first air inlet hole and a first exhaust hole. The material can enter the drying chamber through the first inlet hole and be discharged out of the drying chamber through the first outlet hole. One end of the first air inlet pipe is connected to the first air inlet, and the other end is in a free state. One end of the first exhaust pipe is connected to the first exhaust port, and the other end is connected to the air inlet of the gas-water separator. One end of the connecting pipe is connected to the exhaust port of the gas-water separator, and the other end is connected to the air inlet of the first induced draft fan. The first induced draft fan can sequentially evacuate the first air inlet pipe through the gas-water separator, the first exhaust pipe, and the drying chamber, so that external gas enters the drying chamber through the first air inlet pipe, dries the material located in the drying chamber, and then enters the gas-water separator through the first exhaust pipe.

[0005] Preferably, a first filter device is provided in the first intake pipe to filter the gas entering the first intake pipe from the outside; And / or, a first dehumidification component is provided in the first exhaust pipe to dehumidify the gas flowing through the first exhaust pipe.

[0006] Preferably, it also includes a first heating element; The first heating element is disposed inside the first air inlet pipe and located between the first filter device and the first air inlet, so that the gas entering the first air inlet pipe can be heated by the first heating element and then enter the drying chamber. And / or, also includes a second heating element; The second heating element is disposed inside the drying chamber to regulate the temperature inside the drying chamber.

[0007] Preferably, it also includes a controller and a first temperature acquisition device; The controller is electrically connected to the first heating element and / or the second heating element. The first temperature acquisition device is disposed inside the drying chamber and electrically connected to the controller. The first temperature acquisition device acquires the temperature information inside the drying chamber in real time and sends the temperature information to the controller. The controller controls the first heating element and / or the second heating element to work according to the temperature information.

[0008] Preferably, it also includes an exhaust pipe, an exhaust valve, and a first pressure acquisition device; An exhaust hole is provided on the side wall of the first exhaust pipe. One end of the exhaust pipe is connected to the exhaust hole, and the other end is in a free state. The exhaust valve is provided on the exhaust pipe and is electrically connected to the controller. The first pressure acquisition device is installed inside the drying chamber and is electrically connected to the controller. The first pressure acquisition device acquires the pressure information inside the drying chamber in real time and sends the pressure information to the controller. The controller controls the operation of the discharge valve according to the pressure information.

[0009] Preferably, it also includes a first humidity acquisition device; The first humidity acquisition device is installed inside the first exhaust pipe, located between the first exhaust port and the first dehumidification component, and is electrically connected to the controller. The first humidity acquisition device collects the humidity information of the gas in the first exhaust pipe in real time and sends the humidity information to the controller. The controller controls the operation of the exhaust valve according to the humidity information.

[0010] Preferably, it also includes a drive fan; The drive fan is installed on the first air inlet pipe and is used to drive the gas in the first air inlet pipe into the drying chamber. Both the drive fan and the first induced draft fan are electrically connected to the controller. The controller adjusts the rotation speed of the drive fan and the first induced draft fan based on the pressure information collected by the first pressure acquisition device and / or the humidity information collected by the first humidity acquisition device.

[0011] Ideally, it also includes return air ducts; A return air hole is provided on the side wall of the first air inlet pipe, and the return air hole is located between the first filter device and the first heating element; One end of the return air duct is connected to the air outlet of the first induced draft fan, and the other end is connected to the return air hole, so that the gas discharged from the first induced draft fan can enter the first air inlet pipe through the return air duct.

[0012] Preferably, it also includes a first control valve and a second control valve; The first control valve is installed on the return air duct and is electrically connected to the controller to operate under the control of the controller; The second control valve is located on the first air inlet pipe between the return air hole and the first heating element, and is electrically connected to the controller to operate under the control of the controller.

[0013] Preferably, it also includes: a temperature control chamber with an internal temperature control cavity, a second induced draft fan, a second air inlet pipe, a second exhaust pipe, and a material conveying pipe with a material conveying valve; The temperature control chamber is provided with a second inlet hole, a second outlet hole, a second air inlet hole, and a second exhaust hole. The two ends of the conveying pipe are respectively connected to the first outlet hole and the second inlet hole, so that the material discharged from the first outlet hole can enter the temperature control chamber through the conveying pipe and be discharged out of the temperature control chamber through the second outlet hole. One end of the second air inlet pipe is connected to the second air inlet, and the other end is in a free state. One end of the second exhaust pipe is connected to the second exhaust outlet, and the other end is connected to the air inlet of the second induced draft fan. The second induced draft fan can sequentially evacuate the second air inlet pipe through the second exhaust pipe and the temperature control box, so that external gas enters the temperature control chamber through the second air inlet pipe, adjusts the temperature of the material located in the temperature control chamber, and then enters the second induced draft fan through the second exhaust pipe.

[0014] Preferably, a second filter device is provided in the second intake pipe to filter the gas entering the second intake pipe from the outside; And / or, a second dehumidification component is provided in the second air intake pipe to dehumidify the gas flowing through the second air intake pipe.

[0015] Preferably, it also includes a third heating element; The third heating element is disposed inside the second air inlet pipe and located between the second filter device and the second air inlet, so that the gas entering the second air inlet pipe can be heated by the third heating element before entering the temperature regulating cavity. And / or, also includes a fourth heating element; The fourth heating element is disposed inside the temperature regulating cavity to regulate the temperature inside the temperature regulating cavity.

[0016] Preferably, it also includes a second temperature acquisition device; The controller is electrically connected to the third heating element and / or the fourth heating element. The second temperature acquisition device is disposed inside the temperature control cavity and electrically connected to the controller. The second temperature acquisition device acquires the temperature information inside the temperature control cavity in real time and sends the temperature information to the controller. The controller controls the third heating element and / or the fourth heating element to work according to the temperature information.

[0017] Preferably, when the second dehumidification component is installed in the second air intake pipe, it also includes a bypass pipe, a second humidity acquisition device, a third control valve and a fourth control valve; A first connection hole and a second connection hole are provided on the side wall of the second air intake pipe. The first connection hole and the second connection hole are located between the second filter device and the third heating element, and there is a distance between the first connection hole and the second connection hole along the extension direction of the second air intake pipe. The two ends of the bypass pipe are respectively connected to the first connection hole and the second connection hole. The third control valve is installed on the second air inlet pipe and is electrically connected to the controller. The third control valve and the second dehumidification component are both located between the first connection hole and the second connection hole. The fourth control valve is installed on the bypass pipe and is electrically connected to the controller. The second humidity acquisition device is located inside the second air intake pipe between the second filter device and the first connection hole, and is electrically connected to the controller. The second humidity acquisition device acquires humidity information inside the second air intake pipe in real time and sends the humidity information to the controller. The controller controls the operation of the third control valve and the fourth control valve according to the humidity information.

[0018] A method of using a drying system, using a drying system according to any of the above technical features, the method of using the drying system includes: a startup step, turning on a first induced draft fan to make the pressure in the drying chamber reach a preset value and extracting the moisture in the drying chamber; In the drying step, the material enters the drying chamber through the first feed hole, is dried by the gas entering the drying chamber through the first air inlet pipe, and is then discharged through the first discharge hole.

[0019] Preferably, when the drying system includes a first pressure acquisition device, a first heating element and / or a second heating element, a controller and a first temperature acquisition device, in the startup step, the first pressure acquisition device detects whether the pressure inside the drying chamber has reached the pressure value. During the drying process, the controller controls the operation of the first heating element and / or the second heating element by using the temperature information of the drying chamber collected in real time by the first temperature acquisition device.

[0020] Preferably, when the drying system further includes a discharge valve, during the drying step, the controller controls the operation of the discharge valve based on the pressure information of the drying chamber collected in real time by the first pressure acquisition device.

[0021] Preferably, when the drying system includes a first humidity acquisition device, during the drying step, the controller controls the operation of the discharge valve based on the humidity information in the first exhaust pipe acquired in real time by the first humidity acquisition device.

[0022] Preferably, when the drying system includes a return air duct, during the drying step, the first induced draft fan drives the gas from the return air duct into the first air inlet duct, and then through the first air inlet duct into the drying chamber.

[0023] Preferably, when the drying system includes a first control valve and a second control valve, a cleaning step is further included after the drying step, in which the second control valve is closed and the first control valve is kept open so that the first induced draft fan can drive the airflow into the first air inlet pipe, and after flowing through the first filter device, it is discharged from the free end of the first air inlet pipe.

[0024] Preferably, when the drying system includes a temperature control chamber with an internal temperature control cavity, a second induced draft fan, a second air inlet pipe, a second exhaust pipe, and a conveying pipe with a conveying valve, a temperature control step is also included after the drying step. The conveying valve is opened to allow the dried material in the drying chamber to enter the temperature control cavity through the conveying pipe, and the temperature of the material is regulated by the gas entering the temperature control cavity from the second air inlet pipe.

[0025] The drying system provided by the present invention adopts a technical solution in which one end of the first air inlet pipe is connected to the first air inlet hole and the other end is in a free state; one end of the first exhaust pipe is connected to the first exhaust hole and the other end is connected to the air inlet of the gas-water separator; one end of the connecting pipe is connected to the exhaust port of the gas-water separator and the other end is connected to the air inlet of the first induced draft fan. This solution not only avoids the impact on the external environment, but also reduces labor and improves safety, while also reducing energy loss. Attached Figure Description

[0026] Figure 1 This is a schematic diagram of the drying system structure in Example 1; Figure 2 yes Figure 1 Circuit diagram; Figure 3 This is a flowchart illustrating the usage method of the drying system in Example 2.

[0027] The reference numerals in the figure are as follows: 1-Drying oven; 2-Drying chamber; 3-First induced draft fan; 4-Air-water separator; 5-First air inlet pipe; 6-First exhaust pipe; 7-Connecting pipe; 8-First feed port; 9-First discharge port; 10-First air inlet; 11-First exhaust port; 12-First filter device; 13-First dehumidification component; 14-First heating element; 15-Second heating element; 16-Controller; 17-First temperature acquisition device; 18-Discharge pipe; 19-Discharge valve; 20-First pressure acquisition device; 21-Discharge port; 22-First humidity acquisition device; 23-Drive fan; 24-Return air pipe; 25-Return air vent; 26-First 27-Second control valve; 28-Temperature control chamber; 29-Temperature control cavity; 30-Second induced draft fan; 31-Second air inlet pipe; 32-Second exhaust pipe; 33-Feeding pipe; 34-Second feeding port; 35-Second discharging port; 36-Second air inlet; 37-Second air vent; 38-Second filter device; 39-Second dehumidification component; 40-Third heating element; 41-Fourth heating element; 42-Second temperature acquisition device; 43-Bypass pipe; 44-Second humidity acquisition device; 45-Third control valve; 46-Fourth control valve; 47-First connection hole; 48-Second connection hole; 49-Feeding valve. Detailed Implementation

[0028] To make the objectives, technical solutions, and advantages of this invention clearer, the technical solutions of this invention will be clearly and completely described below in conjunction with specific embodiments and corresponding drawings. Obviously, the described embodiments are only a part of the embodiments of this invention, and not all of them. Based on the embodiments of this invention, all other embodiments obtained by those skilled in the art without creative effort are within the scope of protection of this invention.

[0029] Example 1 like Figure 1 As shown, a drying system for drying materials includes: a drying chamber 1 with an internal drying cavity 2, a first induced draft fan 3, an air-water separator 4, a first air inlet pipe 5, a first exhaust pipe 6, and a connecting pipe 7. The drying chamber 1 is provided with a first feed hole 8, a first discharge hole 9, a first air inlet 10, and a first exhaust hole 11. Materials can enter the drying cavity 2 through the first feed hole 8 and be discharged out of the drying cavity 2 through the first discharge hole 9. One end of the first air inlet pipe 5 is connected to the first air inlet hole 10, and the other end is in a free state. One end of the first exhaust pipe 6 is connected to the first exhaust hole 11, and the other end is connected to the air inlet of the gas-water separator 4. One end of the connecting pipe 7 is connected to the exhaust port of the gas-water separator 4, and the other end is connected to the air inlet of the first induced draft fan 3. The first induced draft fan 3 can sequentially evacuate the first air inlet pipe 5 through the gas-water separator 4, the first exhaust pipe 6, and the drying chamber 1, so that external gas enters the drying chamber 2 through the first air inlet pipe 5, dries the material located in the drying chamber 2, and then enters the gas-water separator 4 through the first exhaust pipe 6.

[0030] With this technical solution, the drying system is under negative pressure during operation, preventing gas and dust from leaking out of the system's gaps. This not only avoids impacting the external environment but also reduces labor, improves safety, and minimizes energy loss.

[0031] Specifically, such as Figure 1As shown, a first filter device 12 is installed inside the first air inlet pipe 5 to filter the gas entering the first air inlet pipe 5 from the outside. This ensures the cleanliness of the gas entering the drying chamber 2 through the first air inlet pipe 5, preventing contamination of the materials in the drying chamber 2 due to excessive impurities. The first filter device 12 can be a filter screen, but is not limited to it; it can be any other component or device that can achieve the purpose of the invention. A first dehumidification component 13 is installed inside the first exhaust pipe 6 to dehumidify the gas flowing through the first exhaust pipe 6. Thus, when the gas enters the first exhaust pipe 6 from the drying chamber 2, the first dehumidification component 13 can adsorb some of the moisture in the gas as it flows through it, thereby reducing the moisture content of the gas before it enters the gas-water separator 4.

[0032] Furthermore, such as Figure 1 As shown, it also includes a first heating element 14, which is disposed within the first air inlet pipe 5 and located between the first filter device 12 and the first air inlet 10, so that the gas entering the first air inlet pipe 5 can be heated by the first heating element 14 before entering the drying chamber 2. And / or, it also includes a second heating element 15, which is disposed within the drying chamber 2 to regulate the temperature within the drying chamber 2. This technical solution ensures that the temperature of the gas within the drying chamber 2 remains at a constant value, thereby guaranteeing the drying effect.

[0033] In actual production, such as Figure 1 , 2 As shown, the system also includes a controller 16 and a first temperature acquisition device 17. The controller 16 is electrically connected to the first heating element 14 and / or the second heating element 15. The first temperature acquisition device 17 is disposed inside the drying chamber 2 and is electrically connected to the controller 16. The first temperature acquisition device 17 collects the temperature information inside the drying chamber 2 in real time and sends the temperature information to the controller 16. The controller 16 controls the operation of the first heating element 14 and / or the second heating element 15 according to the temperature information. This enables precise temperature control inside the drying chamber 2, thereby achieving optimal drying effect. The controller 16's control of the operation of the first heating element 14 and / or the second heating element 15 according to the temperature information includes controlling the first heating element 14 and / or the second heating element 15 to turn on, turn off, and adjust its power.

[0034] Furthermore, such as Figure 1 , 2As shown, it also includes a discharge pipe 18, a discharge valve 19, and a first pressure acquisition device 20. A discharge hole 21 is provided on the side wall of the first exhaust pipe 6. One end of the discharge pipe 18 is connected to the discharge hole 21, while the other end is in a free state. The discharge valve 19 is installed on the discharge pipe 18 and electrically connected to the controller 16. The first pressure acquisition device 20 is installed inside the drying chamber 2 and electrically connected to the controller 16. The first pressure acquisition device 20 collects the pressure information inside the drying chamber 2 in real time and sends this pressure information to the controller 16. The controller 16 controls the operation of the discharge valve 19 based on this pressure information. For example, when the pressure value inside the drying chamber 2 collected by the first pressure acquisition device 20 exceeds a preset range, the controller controls the discharge valve 19 to open. At this time, the drying chamber 2 is connected to the outside through the discharge pipe 18, thereby regulating the pressure inside the drying chamber 2 to prevent deformation of the drying chamber 1 due to abnormal internal pressure.

[0035] At the same time, such as Figure 1 , 2 As shown, it also includes a first humidity acquisition device 22, which is installed inside the first exhaust pipe 6, located between the first exhaust port 11 and the first dehumidification component 13, and electrically connected to the controller 16. The first humidity acquisition device 22 collects the humidity information of the gas in the first exhaust pipe 6 in real time and sends the humidity information to the controller 16. The controller 16 controls the operation of the discharge valve 19 according to the humidity information. For example, when the humidity information of the gas in the first exhaust pipe 6 collected by the first humidity acquisition device 22 exceeds a preset value, the controller 16 controls the discharge valve 19. At this time, some of the gas with higher humidity will be discharged through the discharge pipe 18, thereby reducing the workload of the downstream first dehumidification component 13 and the gas-water separator 4.

[0036] As an optional implementation method, such as Figure 1 , 2 As shown, the system also includes a drive fan 23, which is mounted on the first air inlet pipe 5 to drive the gas in the first air inlet pipe 5 into the drying chamber 2. Both the drive fan 23 and the first exhaust fan 3 are electrically connected to the controller 16. The controller 16 adjusts the rotational speeds of the drive fan 23 and the first exhaust fan 3 based on the pressure information collected by the first pressure acquisition device 20 and / or the humidity information collected by the first humidity acquisition device 22. This ensures that the pressure value inside the drying chamber 2 is maintained at a reasonable level, and also keeps the gas-solid ratio inside the drying chamber 2 within a reasonable range, thereby guaranteeing the drying effect.

[0037] Even better, such as Figure 1As shown, it also includes a return air duct 24, and a return air hole 25 is provided on the side wall of the first air inlet pipe 5. The return air hole 25 is located between the first filter device 12 and the first heating element 14. One end of the return air duct 24 is connected to the air outlet of the first induced draft fan 3, and the other end is connected to the return air hole 25, so that the gas discharged from the first induced draft fan 3 can enter the first air inlet pipe 5 through the return air duct 24. With this technical solution, the gas discharged from the drying chamber 2 can return to the drying chamber 2 under the driving action of the first induced draft fan 3 for operation, thus realizing the recovery and reuse of drying hot air and reducing energy waste. Specifically, as Figure 1 , 2 As shown, it also includes a first control valve 26 and a second control valve 27. The first control valve 26 is installed on the return air duct 24 and electrically connected to the controller 16 to operate under the control of the controller 16. The second control valve 27 is installed on the first air inlet duct 5 between the return air hole 25 and the first heating element 14, and is also electrically connected to the controller 16 to operate under the control of the controller 16. During the drying process of the material, both the first control valve 26 and the second control valve 27 are in the open state. The controller 16 can adjust the opening degree of the first control valve 26 and the second control valve 27 according to the actual working needs.

[0038] As an extended implementation plan, such as Figure 1As shown, this embodiment also includes: a temperature control chamber 28 with an internal temperature control cavity 29, a second induced draft fan 30, a second air inlet pipe 31, a second exhaust pipe 32, and a material conveying pipe 33 with a material conveying valve 49. The temperature control chamber 28 is provided with a second inlet hole 34, a second outlet hole 35, a second air inlet hole 36, and a second exhaust hole 37. The two ends of the material conveying pipe 33 are respectively connected to the first outlet hole 9 and the second inlet hole 34, so that the material discharged from the first outlet hole 9 can enter the temperature control cavity 29 through the material conveying pipe 33 and be discharged out of the temperature control cavity 29 through the second outlet hole 35. One end of the second air inlet pipe 31 is connected to the second air inlet hole 36, while the other end is in a free state. One end of the second exhaust pipe 32 is connected to the second exhaust hole 37, and the other end is connected to the air inlet of the second induced draft fan 30. The second induced draft fan 30 can sequentially evacuate the second air inlet pipe 31 through the second exhaust pipe 32 and the temperature control chamber 28, allowing external gas to enter the temperature control chamber 29 through the second air inlet pipe 31. After adjusting the temperature of the material located in the temperature control chamber 29, the material then enters the second induced draft fan 30 through the second exhaust pipe 32. This technical solution enables the temperature of the dried material to be adjusted to a reasonable temperature before being transported to the target location, improving the adaptability of the work. It should be noted that since a conveying valve 49 is installed on the conveying pipe 33, the opening or closing of the conveying valve 49 can control the conduction or cutoff of the conveying pipe 33. In actual production, the conveying valve 49 is equipped with a heat insulation structure to reduce heat transfer between the drying chamber 2 and the temperature control chamber 3.

[0039] Preferably, a second filter device 38 is provided inside the second air inlet pipe 31 to filter the gas entering the second air inlet pipe 31 from the outside. This ensures the cleanliness of the gas entering the temperature-regulating chamber 29 through the second air inlet pipe 31, preventing contamination of the materials in the temperature-regulating chamber 29 due to excessive impurities. The second filter device 31 can be a filter screen, but is not limited to it, and can be any other component or device that can achieve the purpose of the invention. A second dehumidification component 39 is provided inside the second air inlet pipe 31 to dehumidify the gas flowing through the second air inlet pipe 31. This ensures the dryness of the gas entering the temperature-regulating chamber 29, preventing the dryness of the materials in the temperature-regulating chamber from decreasing due to excessive humidity.

[0040] Furthermore, such as Figure 1As shown, it also includes a third heating element 40, which is disposed within the second air inlet pipe 31 and located between the second filter device 38 and the second air inlet 36, so that the gas entering the second air inlet pipe 31 can be heated by the third heating element 40 before entering the temperature regulating chamber 29. And / or, it also includes a fourth heating element 41, which is disposed within the temperature regulating chamber 29 to regulate the temperature within the temperature regulating chamber 29. This technical solution ensures that the temperature within the temperature regulating chamber 29 remains at a constant value, thereby guaranteeing the temperature regulation effect. Preferably, such as Figure 1 , 2 As shown, it also includes a second temperature acquisition device 42. The controller 16 is electrically connected to the third heating element 40 and / or the fourth heating element 41. The second temperature acquisition device 42 is located inside the temperature regulating cavity 29 and is electrically connected to the controller 16. The second temperature acquisition device 42 collects the temperature information inside the temperature regulating cavity 29 in real time and sends the temperature information to the controller 16. The controller 16 controls the operation of the third heating element 40 and / or the fourth heating element 41 according to the temperature information. This enables precise control of the temperature inside the temperature regulating cavity 29, thereby achieving the best temperature regulation effect. The controller 16 controls the operation of the third heating element 40 and / or the fourth heating element 41 according to the temperature information, including controlling the first heating element 14 and / or the second heating element 15 to turn on and off, and adjusting the power.

[0041] More preferably, when a second dehumidification component 39 is installed inside the second air intake pipe 31, such as Figure 1 , 2As shown, it also includes a bypass pipe 43, a second humidity acquisition device 44, a third control valve 45, and a fourth control valve 46. A first connection hole 47 and a second connection hole 48 are provided on the side wall of the second air intake pipe 31. The first connection hole 47 and the second connection hole 48 are located between the second filter device 38 and the third heating element 40, and there is a distance between the first connection hole 47 and the second connection hole 48 along the extension direction of the second air intake pipe 31. The two ends of the bypass pipe 43 are respectively connected to the first connection hole 47 and the second connection hole 48. The third control valve 45 is provided on the second air intake pipe 31 and is electrically connected to the controller 16. The third control valve 45 and the second dehumidification component 39 are both located between the first connection hole 47 and the second connection hole 48. The fourth control valve 46 is provided on the bypass pipe 43 and is electrically connected to the controller 16. The second humidity acquisition device 44 is located inside the second air inlet pipe 31 between the second filter device 38 and the first connecting hole 47, and is electrically connected to the controller 16. The second humidity acquisition device 44 collects humidity information in the second air inlet pipe 31 in real time and sends the humidity information to the controller 16. The controller 16 controls the third control valve 45 and the fourth control valve 46 to operate based on the humidity information. At this time, the second humidity acquisition device 44 is actually collecting humidity information of the gas entering the temperature control chamber 29. If the humidity of the gas collected by the second humidity acquisition device 44 exceeds the preset value, the controller 16 controls the third control valve 45 to open and the fourth control valve 46 to close. At this time, the gas flowing through the second air inlet pipe 31 can flow through the second dehumidification component 39 for dehumidification before entering the temperature control chamber 29. If the humidity of the gas collected by the second humidity acquisition device 44 is lower than the preset value, the controller 16 controls the third control valve 45 to close and the fourth control valve 46 to open. At this time, the gas flowing through the second air inlet pipe 31 enters the temperature control chamber 29 directly through the bypass pipe 43, and is no longer dehumidified by the second dehumidification component 39, thus reducing the workload of the second dehumidification component 39.

[0042] Example 2

[0043] A method of using a drying system, comprising using the drying system described in Example 1 (see details of the structure) Figure 1 , 2 ),like Figure 3 As shown, the method of using the drying system includes: a startup step, turning on the first induced draft fan to make the pressure in the drying chamber reach a preset value and extract the moisture in the drying chamber; and a drying step, allowing the material to enter the drying chamber from the first feed hole, and then being dried by the gas entering the drying chamber through the first air inlet pipe, and then being discharged through the first discharge hole.

[0044] Specifically, when the drying system includes a first pressure acquisition device, a first heating element and / or a second heating element, a controller and a first temperature acquisition device, in the startup step, the first pressure acquisition device detects whether the pressure inside the drying chamber has reached the pressure value; at the same time, in the drying step, the controller controls the operation of the first heating element and / or the second heating element by using the temperature information of the drying chamber acquired in real time by the first temperature acquisition device.

[0045] When the drying system also includes a discharge valve, during the drying step, the controller controls the discharge valve to operate based on the pressure information of the drying chamber collected in real time by the first pressure acquisition device. When the drying system includes a first humidity acquisition device, during the drying step, the controller controls the discharge valve to operate based on the humidity information of the first exhaust pipe collected in real time by the first humidity acquisition device. Preferably, when the drying system includes a return air duct, during the drying step, the first induced draft fan drives the gas from the return air duct into the first intake pipe, and then into the drying chamber through the first intake pipe.

[0046] The connection structure and working principle of each component in this embodiment are the same as those described in Embodiment 1, and will not be repeated here.

[0047] As one possible implementation method, such as Figure 3 As shown, when the drying system includes a first control valve and a second control valve, a cleaning step is also included after the drying step. The second control valve is closed, while the first control valve remains open, allowing the first induced draft fan to drive airflow into the first inlet pipe. After passing through the first filter device, the airflow exits from the free end of the first inlet pipe. This enables automatic cleaning of the first filter device, saving labor costs.

[0048] As one possible implementation method, such as Figure 3 As shown, when the drying system includes a temperature-regulating chamber with an internal temperature-regulating cavity, a second induced draft fan, a second air inlet pipe, a second exhaust pipe, and a conveying pipe with a conveying valve, a temperature-regulating step is included after the drying step. The conveying valve is opened, allowing the dried material in the drying chamber to enter the temperature-regulating cavity through the conveying pipe. The temperature of the material is then regulated by the gas entering the temperature-regulating cavity from the second air inlet pipe. This allows for the regulation of the temperature of the dried material. The specific working principle is the same as described in Example 1, and therefore will not be repeated here.

[0049] It will be readily understood by those skilled in the art that the aforementioned advantageous methods can be freely combined and superimposed without conflict.

[0050] The above description is merely a preferred embodiment of the present invention and is not intended to limit the present invention. Any modifications, equivalent substitutions, and improvements made within the spirit and principles of the present invention should be included within the protection scope of the present invention. The above description is only a preferred embodiment of the present invention. It should be noted that for those skilled in the art, several improvements and modifications can be made without departing from the technical principles of the present invention, and these improvements and modifications should also be considered within the protection scope of the present invention.

Claims

1. A drying system for drying materials, comprising: a drying box (1) having a drying cavity (2) therein, a first air blower (3), a gas-water separator (4), a first air inlet pipe (5), a first air outlet pipe (6) and a connecting pipe (7); the drying box (1) is provided with a first material inlet hole (8), a first material outlet hole (9), a first air inlet hole (10) and a first air outlet hole (11), the materials can enter into the drying cavity (2) from the first material inlet hole (8) and be discharged out of the drying cavity (2) through the first material outlet hole (9); one end of the first air inlet pipe (5) is connected to the first air inlet hole (10) and the other end is in a free state, one end of the first air outlet pipe (6) is connected to the first air outlet hole (11) and the other end is connected to the air inlet of the gas-water separator (4), one end of the connecting pipe (7) is connected to the air outlet of the gas-water separator (4) and the other end is connected to the air inlet of the first air blower (3), the first air blower (3) can sequentially vacuumize the first air inlet pipe (5) through the gas-water separator (4), the first air outlet pipe (6) and the drying box (1) so that the external gas enters into the drying cavity (2) through the first air inlet pipe (5) and dries the materials in the drying cavity (2) and then enters into the gas-water separator (4) through the first air outlet pipe (6).

2. The drying system according to claim 1, wherein: a first filtering device (12) is arranged in the first air inlet pipe (5) to filter the gas entering into the first air inlet pipe (5) from the outside; and / or a first dehumidifying component (13) is arranged in the first air outlet pipe (6) to dehumidify the gas flowing through the first air outlet pipe (6).

3. The drying system according to claim 2, further comprising a first heating element (14); the first heating element (14) is arranged in the first air inlet pipe (5) and located between the first filtering device (12) and the first air inlet hole (10) so that the gas entering into the first air inlet pipe (5) can be heated by the first heating element (14) and then enter into the drying cavity (2); and / or further comprising a second heating element (15); the second heating element (15) is arranged in the drying cavity (2) to adjust the temperature in the drying cavity (2).

4. The drying system according to claim 3, further comprising a controller (16) and a first temperature collecting device (17). ​ ​ ​ ​ ​ ​ ​ ​ ​ ​ ​ The controller (16) is electrically connected with the first heating element (14) and / or the second heating element (15), the first temperature collecting device (17) is arranged in the drying cavity (2) and is electrically connected with the controller (16), the first temperature collecting device (17) collects temperature information in the drying cavity (2) in real time and sends the temperature information to the controller (16), and the controller (16) controls the first heating element (14) and / or the second heating element (15) to work according to the temperature information.

5. The drying system according to claim 4, further comprising: a discharge pipe (18), a discharge valve (19) and a first pressure collecting device (20); a discharge hole (21) is arranged on the side wall of the first exhaust pipe (6), one end of the discharge pipe (18) is connected to the discharge hole (21), the other end is in a free state, the discharge valve (19) is arranged on the discharge pipe (18) and is electrically connected with the controller (16); the first pressure collecting device (20) is arranged in the drying cavity (2) and is electrically connected with the controller (16), the first pressure collecting device (20) collects pressure information in the drying cavity (2) in real time and sends the pressure information to the controller (16), and the controller (16) controls the discharge valve (19) to work according to the pressure information.

6. The drying system according to claim 5, further comprising: a first humidity collecting device (22); the first humidity collecting device (22) is arranged in the first exhaust pipe (6) and is located between the first exhaust hole (11) and the first dehumidifying component (13), and is electrically connected with the controller (16), the first humidity collecting device (22) collects gas humidity information in the first exhaust pipe (6) in real time and sends the humidity information to the controller (16), and the controller (16) controls the discharge valve (19) to work according to the humidity information.

7. The drying system according to claim 6, further comprising: a driving fan (23); the driving fan (23) is arranged on the first air inlet pipe (5) and is used to drive the gas in the first air inlet pipe (5) to enter into the drying cavity (2); the driving fan (23) and the first air inducing fan (3) are both electrically connected with the controller (16), and the controller (16) adjusts the rotating speed of the driving fan (23) and the first air inducing fan (3) according to the pressure information collected by the first pressure collecting device (20) and / or the humidity information collected by the first humidity collecting device (22).

8. The drying system according to any one of claims 4 to 7, further comprising: a return air pipe (24); a return air hole (25) is arranged on the side wall of the first air inlet pipe (5), and the return air hole (25) is located between the first filtering device (12) and the first heating element (14). One end of the return air pipe (24) is connected to the air outlet of the first air blower (3), and the other end is connected to the return air hole (25), so that the gas discharged from the first air blower (3) can enter the first air inlet pipe (5) through the return air pipe (24).

9. The drying system according to claim 8, characterized in that: Further comprising a first control valve (26) and a second control valve (27); The first control valve (26) is arranged on the return air pipe (24) and is electrically connected with the controller (16) to work under the control of the controller (16); The second control valve (27) is arranged on the first air inlet pipe (5) between the return air hole (25) and the first heating element (14) and is electrically connected with the controller (16) to work under the control of the controller (16).

10. The drying system according to any one of claims 4 to 7, characterized in that: Further comprising a temperature adjusting box (28) with a temperature adjusting cavity (29) inside, a second air blower (30), a second air inlet pipe (31), a second air outlet pipe (32) and a material conveying pipe (33) with a material conveying valve (49); The temperature adjusting box (28) is provided with a second material inlet hole (34), a second material outlet hole (35), a second air inlet hole (36) and a second air outlet hole (37), and two ends of the material conveying pipe (33) are respectively connected to the first material outlet hole (9) and the second material inlet hole (34), so that the material discharged from the first material outlet hole (9) can enter the temperature adjusting cavity (29) through the material conveying pipe (33) and be discharged from the temperature adjusting cavity (29) through the second material outlet hole (35); One end of the second air inlet pipe (31) is connected to the second air inlet hole (36), and the other end is in a free state. One end of the second air outlet pipe (32) is connected to the second air outlet hole (37), and the other end is connected to the air inlet of the second air blower (30). The second air blower (30) can sequentially vacuumize the second air inlet pipe (31) through the second air outlet pipe (32) and the temperature adjusting box (28), so that external gas enters the temperature adjusting cavity (29) through the second air inlet pipe (31), adjusts the temperature of the material in the temperature adjusting cavity (29), and then enters the second air blower (30) through the second air outlet pipe (32).

11. The drying system according to claim 10, characterized in that: A second filtering device (38) is arranged in the second air inlet pipe (31) to filter the gas entering the second air inlet pipe (31) from the outside; And / or, a second dehumidifying component (39) is arranged in the second air inlet pipe (31) to dehumidify the gas flowing through the second air inlet pipe (31).

12. The drying system according to claim 11, characterized in that: Further comprising a third heating element (40); The third heating element (40) is arranged in the second air inlet pipe (31) and located between the second filtering device (38) and the second air inlet hole (36) to heat the air entering the second air inlet pipe (31) and then enter the temperature adjusting cavity (29). And / or, the fourth heating element (41) is further included. The fourth heating element (41) is arranged in the temperature adjusting cavity (29) to adjust the temperature in the temperature adjusting cavity (29).

13. The drying system according to claim 12, characterized in that: The second temperature collecting device (42) is further included. The controller (16) is electrically connected with the third heating element (40) and / or the fourth heating element (41), the second temperature collecting device (42) is arranged in the temperature adjusting cavity (29) and electrically connected with the controller (16), the second temperature collecting device (42) collects the temperature information in the temperature adjusting cavity (29) in real time and sends the temperature information to the controller (16), and the controller (16) controls the third heating element (40) and / or the fourth heating element (41) to work according to the temperature information.

14. The drying system according to claim 12, characterized in that: When the second dehumidifying component (39) is arranged in the second air inlet pipe (31), the bypass pipe (43), the second humidity collecting device (44), the third control valve (45) and the fourth control valve (46) are further included. The first connecting hole (47) and the second connecting hole (48) are arranged on the side wall of the second air inlet pipe (31), the first connecting hole (47) and the second connecting hole (48) are located between the second filtering device (38) and the third heating element (40), and the first connecting hole (47) and the second connecting hole (48) are apart from each other along the extending direction of the second air inlet pipe (31), and the two ends of the bypass pipe (43) are connected with the first connecting hole (47) and the second connecting hole (48) respectively. The third control valve (45) is arranged on the second air inlet pipe (31) and electrically connected with the controller (16), the third control valve (45) and the second dehumidifying component (39) are located between the first connecting hole (47) and the second connecting hole (48), and the fourth control valve (46) is arranged on the bypass pipe (43) and electrically connected with the controller (16). The second humidity collecting device (44) is arranged between the second filter device (38) and the first connecting hole (47) in the second air inlet pipe (31) and is electrically connected with the controller (16). The second humidity collecting device (44) collects humidity information in the second air inlet pipe (31) in real time and sends the humidity information to the controller (16). The controller (16) controls the third control valve (45) and the fourth control valve (46) to work according to the humidity information.

15. A method of using a drying system according to any one of claims 1 to 14, comprising: starting the first air blower to reach a preset pressure in the drying cavity and to exhaust the humidity in the drying cavity; drying the material in the drying cavity by the gas entering the drying cavity from the first air inlet pipe.

16. The method of claim 15, wherein: when the drying system comprises a first pressure collecting device, a first heating element and / or a second heating element, a controller and a first temperature collecting device, in the starting step, the first pressure collecting device is used to detect whether the pressure in the drying cavity reaches a preset pressure value; in the drying step, the controller controls the first heating element and / or the second heating element to work according to the temperature information of the drying cavity collected by the first temperature collecting device in real time.

17. The method of claim 16, wherein: when the drying system further comprises a discharge valve, in the drying step, the controller controls the discharge valve to work according to the pressure information of the drying cavity collected by the first pressure collecting device in real time.

18. The method of claim 17, wherein: when the drying system comprises a first humidity collecting device, in the drying step, the controller controls the discharge valve to work according to the humidity information of the first exhaust pipe collected by the first humidity collecting device in real time.

19. The method of claim 16, wherein: when the drying system comprises a return air pipe, in the drying step, the first air blower drives the gas to enter the first air inlet pipe from the return air pipe and then enter the drying cavity through the first air inlet pipe.

20. The method of claim 19, wherein: when the drying system comprises a first control valve and a second control valve, after the drying step, the method further comprises a cleaning step, in which the second control valve is closed and the first control valve is kept open, so that the first air blower can drive the gas to enter the first air inlet pipe and then flow through the first filter device and be discharged from the free end of the first air inlet pipe. ​ 21. The method of using a drying system according to any one of claims 15 to 19, wherein: When the drying system comprises a temperature-adjusting box with a temperature-adjusting cavity inside, a second air blower, a second air inlet pipe, a second air outlet pipe and a material conveying pipe with a material conveying valve, a temperature-adjusting step is further included after the drying step, the material conveying valve is opened, the dried material in the drying cavity is conveyed into the temperature-adjusting cavity through the material conveying pipe, and the temperature of the material is adjusted by the gas entering into the temperature-adjusting cavity from the second air inlet pipe.

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