Drying equipment with heat recovery function

Abstract

The invention relates to the technical field of drying, in particular to drying equipment with a heat recovery function. The device comprises a base, a conveying device is arranged at the top of the base, a drying box is arranged at the top of the conveying device close to the center, and a bottom plate is arranged in the conveying device and located under the drying box; a heat recovery device is arranged between the top of the drying box and the top of the base and comprises a heat exchanger, the heat exchanger is fixedly connected to the top of the base, an output pipe is arranged between the heat exchanger and the bottom plate, a waste heat assembly is arranged at the top of the drying box, an input pipe is arranged between the heat exchanger and the waste heat assembly, and a cleaning block is arranged in the waste heat assembly. The cleaning block is used for intercepting and filtering particle impurities carried in waste heat, so that the number of impurities entering the heat exchanger is greatly reduced; and moreover, the cleaning block can move in the waste heat assembly under the driving of waste heat, grease on the inner wall of the waste heat assembly is adsorbed, grease deposits on the inner wall are effectively removed, and the heat exchange efficiency is improved.

Description

Technical Field

[0001] The present invention relates to the technical field of drying, in particular to a drying device with a heat recovery function. Background Art

[0002] Drying equipment is a device that removes moisture from materials by heating, ventilation, etc. Its purpose is to reduce the moisture content of materials to a level that meets specific requirements to meet the needs of different scenarios such as production, storage, and processing. For example, in food processing, fresh fruits need to be dried into dried fruits. At this time, drying equipment can play a role by reducing the moisture in the fruit, preventing microbial growth and corruption, and extending its shelf life.

[0003] Drying equipment with heat recovery function is a device that can recycle and reuse the waste heat discharged during the drying process. Its basic principle is to transfer the heat in the hot and humid air (containing a lot of heat) generated during the drying process to the fresh cold air or materials entering the drying equipment through components such as heat exchangers, thereby improving energy utilization efficiency.

[0004] In the drying process of food processing, the waste heat generated by the drying operation often carries with it many impurities, among which food particles and grease are more common; especially when processing high-fat foods such as meat and fish, some of the grease will evaporate or seep out during the drying process and mix into the waste heat airflow; and the grease in the waste heat will gradually adhere to the wall of the heat exchanger tube during the heat recovery process. Over time, the grease layer continues to thicken, which not only weakens the heat exchange efficiency, but also provides a breeding ground for bacteria; and the heat exchangers in some existing drying equipment have complex internal structures, which are inconvenient to disassemble and clean, resulting in a decrease in the performance of the heat exchanger after long-term use, affecting the normal use of the equipment.

[0005] In view of this, the present invention provides a drying device with a heat recovery function. Summary of the invention

[0006] The object of the present invention is to provide a drying device with a heat recovery function to solve the problems raised in the above background technology.

[0007] To achieve the above object, the present invention provides a drying device with heat recovery function, comprising a base, a conveying device is provided on the top of the base, a drying box is provided near the center of the top of the conveying device, and a bottom plate is provided inside the conveying device directly below the drying box;

[0008] A heat recovery device is provided between the top of the drying box and the top of the base, the heat recovery device comprises a heat exchanger, the heat exchanger is fixedly connected to the top of the base, an output pipe is provided between the heat exchanger and the bottom plate, a waste heat component is provided on the top of the drying box, an input pipe is provided between the heat exchanger and the waste heat component, and a cleaning block is provided inside the waste heat component;

[0009] The cleaning block is used to filter the waste heat input into the heat exchanger. The cleaning block is also used to clean the grease on the inner wall of the waste heat component. The heat exchanger is used to recycle and reuse the waste heat to reduce energy consumption.

[0010] As a further improvement of the present technical solution, the waste heat assembly includes a support plate, which is arranged on the top of the drying box. A rotating assembly is provided on the top of the support plate. A pipe is provided between the top of the rotating assembly and the input pipe, and a plurality of locking assemblies are provided between the inside of the rotating assembly and the pipe.

[0011] As a further improvement of the technical solution, the rotating assembly includes a pipe box, which is arranged between the pipeline and the support plate, and a rotating rod is fixedly connected to the top of the pipe box.

[0012] As a further improvement of the technical solution, a round block is fixedly connected to the top of the rotating rod, the rotating rod and the round block are movably connected inside the pipeline, and a plurality of locking components are provided between the inside of the pipe box and the inside of the pipeline.

[0013] As a further improvement of the technical solution, the locking assembly includes a support rod, which is movably connected between the pipeline and the inside of the pipe box, and an elastic member is fixedly connected between the bottom of the support rod and the inside of the pipe box.

[0014] As a further improvement of the technical solution, a convex plate is fixedly connected to the outer wall of the support rod near the bottom, a baffle is fixedly connected to the bottom of the convex plate, and the convex plate and the baffle are both movably connected inside the pipe box.

[0015] As a further improvement of the technical solution, the cleaning block is made of sponge material, and a plurality of sponge holes of different sizes are provided inside the cleaning block.

[0016] As a further improvement of the technical solution, a hot air blower is fixedly connected to the top of the base, and an air duct is provided between the end of the hot air blower and the bottom plate. The hot air blower is used to continuously input hot air into the drying box.

[0017] Compared with the prior art, the present invention has the following beneficial effects:

[0018] 1. In the drying equipment with heat recovery function, the cleaning block can efficiently intercept and filter the particulate impurities carried in the waste heat, greatly reducing the amount of impurities entering the heat exchanger; and, driven by the waste heat, the cleaning block can move inside the waste heat component, actively contact the inner wall of the waste heat component, absorb the grease on the inner wall of the waste heat component, effectively remove the grease deposits on the inner wall, and improve the heat exchange efficiency.

[0019] 2. In the drying equipment with heat recovery function, the cleaning block can be replaced in time by adjusting the waste heat component. When the cleaning block is saturated with adsorption or reaches the end of its service life, it can be quickly removed and replaced with a new cleaning block to ensure that the entire filtering and cleaning system is always in the best working condition. BRIEF DESCRIPTION OF THE DRAWINGS

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

[0021] Figure 2 It is a schematic diagram of the internal structure of the conveying device of the present invention;

[0022] Figure 3 It is a schematic diagram of the structure of the heat recovery device of the present invention;

[0023] Figure 4 This is a schematic diagram of the structure of the present invention in the installation and disassembly state;

[0024] Figure 5 It is a schematic diagram of the initial state structure of the present invention;

[0025] Figure 6 It is a schematic diagram of the cleaning state structure of the present invention;

[0026] Figure 7 It is a schematic diagram of the structure of the waste heat assembly of the present invention;

[0027] Figure 8 It is a schematic diagram of the rotation locking structure of the present invention;

[0028] Fig. 9 It is a schematic diagram of the internal structure of the cleaning block of the present invention.

[0029] The meaning of each number in the figure is:

[0030] 1. base; 11. conveying device; 110. bottom plate; 12. drying box; 13. hot air blower; 130. air duct;

[0031] 2. Heat recovery device; 21. Heat exchanger; 22. Output pipe; 23. Input pipe;

[0032] 24, waste heat assembly; 240, pipeline; 241, rotating assembly; 2410, pipe box; 2411, rotating rod; 2412, round block; 242, support plate; 243, locking assembly; 2430, support rod; 2431, convex plate; 2432, baffle; 2433, elastic member;

[0033] 3. Cleaning block. DETAILED DESCRIPTION

[0034] The technical solution of the present invention will be described clearly and completely below in conjunction with the accompanying drawings of the present invention. Obviously, the described embodiments are only part of the embodiments of the present invention, not all of the embodiments. Based on the embodiments of the present invention, all other embodiments obtained by ordinary technicians in this field without creative work are within the scope of protection of the present invention.

[0035] Example 1: Please refer to Figure 1-Figure 6 As shown, the purpose of this embodiment is to provide a drying device with heat recovery function, including a base 1, a conveying device 11 is provided on the top of the base 1, a drying box 12 is provided near the center of the top of the conveying device 11, and a bottom plate 110 is provided inside the conveying device 11 directly below the drying box 12;

[0036] A heat recovery device 2 is provided between the top of the drying box 12 and the top of the base 1. The heat recovery device 2 includes a heat exchanger 21, which is fixedly connected to the top of the base 1. An output pipe 22 is provided between the heat exchanger 21 and the bottom plate 110. A waste heat component 24 is provided on the top of the drying box 12. An input pipe 23 is provided between the heat exchanger 21 and the waste heat component 24. A cleaning block 3 is provided inside the waste heat component 24.

[0037] The cleaning block 3 is used to filter the waste heat input into the heat exchanger 21. The cleaning block 3 is also used to clean the grease on the inner wall of the waste heat component 24. The heat exchanger 21 is used to recycle the waste heat and reduce energy consumption.

[0038] The improvements of this embodiment are as follows: First, the cleaning block 3 intercepts various types of particulate impurities in the waste heat to prevent these impurities from directly invading the heat exchanger and gradually adhering to and accumulating on the heat exchange surface, greatly weakening the heat exchange efficiency and blocking the heat exchange channel. The cleaning block 3 ensures that the heat exchanger always maintains efficient heat exchange capacity, ensures the stability of the heat recovery efficiency of the drying system, and enables the production process to continue to smoothly advance;

[0039] Secondly, regarding the grease components contained in the waste heat, especially in the drying process of high-fat foods, when the waste heat circulates in the component, the grease will continue to adhere to the inner wall of the component. Over time, the grease layer continues to thicken, which not only seriously hinders the flow efficiency of the gas in the component, causing the system energy consumption to rise sharply, but also creates a hotbed for the growth and reproduction of bacteria, posing a serious threat to the sanitation and safety standards of food processing; at this time, the cleaning block 3 is driven by the waste heat to flexibly move inside the waste heat component 24, actively adhere to the inner wall to absorb the grease, successfully resolve the problem of grease accumulation, and significantly extend the maintenance cycle of the equipment;

[0040] Finally, by adjusting the waste heat component 24, the cleaning block 3 can be replaced in time. When the cleaning block 3 reaches the adsorption saturation state or its service life is about to end, a new cleaning block 3 can be easily taken out and replaced, ensuring that the entire filtering and cleaning system is always in the best working condition.

[0041] First, the specific structure of the waste heat assembly 24 is disclosed. The waste heat assembly 24 includes a support plate 242, which is arranged on the top of the drying box 12. A rotating assembly 241 is arranged on the top of the support plate 242. A pipe 240 is arranged between the top of the rotating assembly 241 and the input pipe 23. A plurality of locking assemblies 243 are arranged between the inside of the rotating assembly 241 and the pipe 240.

[0042] See also Figure 2 and Figure 3 As shown, by adjusting the rotating assembly 241 to rotate between the support plate 242 and the pipe 240, when the rotating assembly 241 is moved out from the bottom of the pipe 240, it is convenient to place the cleaning block 3 inside it and press the multiple locking assemblies 243; by moving the rotating assembly 241 to the bottom of the pipe 240, the cleaning block 3 is installed inside the pipe 240;

[0043] When the drying work starts, the waste gas continuously output upward will flow to the input pipe 23 through the pipe 240. When the waste gas passes through, it pushes the cleaning block 3 to move upward on the inner wall of the pipe 240. At this time, the cleaning block 3 not only filters the particulate impurities in the waste gas, but also cleans the grease on the inner wall of the pipe 240 during the movement. When the cleaning block 3 moves out of the rotating assembly 241 under the push of the waste gas, the multiple locking assemblies 243 rebound upward by themselves after losing gravity, and fix the position between the rotating assembly 241 and the pipe 240, thereby ensuring the sealing of the cleaning block 3 when it moves in the pipe 240.

[0044] When drying is completed, the cleaning block 3 loses the gas propulsion. At this time, the cleaning block 3 moves downward due to its own gravity, and wipes the inner wall of the pipe 240 again during the movement, absorbing the grease on the inner wall until it falls into the rotating component 241, and then presses the locking component 243 to separate the rotating component 241 from the pipe 240, making it convenient to move the rotating component 241 out of the bottom of the pipe 240, thereby facilitating the replacement of the cleaning block 3.

[0045] The rotating assembly 241 includes a pipe box 2410, which is disposed between the pipe 240 and the support plate 242. A rotating rod 2411 is fixedly connected to the top of the pipe box 2410; a round block 2412 is fixedly connected to the top of the rotating rod 2411. The rotating rod 2411 and the round block 2412 are both movably connected to the inside of the pipe 240. A plurality of locking components 243 are disposed between the inside of the pipe box 2410 and the inside of the pipe 240.

[0046] See also Figure 8 As shown, by pushing the pipe box 2410 to make it rotate with the rotating rod 2411 as the center, the rotating position of the rotating rod 2411 and the pipe box 2410 is limited by the round block 2412, so that the rotating rod 2411 is always located inside the pipe 240; by rotating the pipe box 2410 out of the bottom of the pipe 240, it is convenient to place the cleaning block 3 inside it, and press the locking assembly 243, and by pushing the pipe box 2410 again to rotate it back to the bottom of the pipe 240, it is convenient to install and disassemble the cleaning block 3.

[0047] The locking assembly 243 includes a support rod 2430, which is movably connected between the pipe 240 and the inside of the pipe box 2410, and an elastic member 2433 is fixedly connected between the bottom of the support rod 2430 and the inside of the pipe box 2410; a convex plate 2431 is fixedly connected to the outer wall of the support rod 2430 near the bottom, and a baffle 2432 is fixedly connected to the bottom of the convex plate 2431, and the convex plate 2431 and the baffle 2432 are both movably connected to the inside of the pipe box 2410;

[0048] See also Figure 8As shown, when the cleaning block 3 is located inside the pipe box 2410, the cleaning block 3 will press the multiple convex plates 2431 by its own gravity, so that the convex plates 2431 drive the support rod 2430 downward and compress the elastic member 2433 at the same time; at this time, the support rod 2430 is located inside the pipe box 2410 under the action of pressure, which facilitates the movement of the pipe box 2410 at the bottom of the pipe 240; when the cleaning block 3 is separated from the pipe box 2410, the multiple convex plates 2431 lose pressure, causing the elastic member 2433 to rebound, driving the convex plates 2431 to move downward. 31 and the support rod 2430 move upward, so that the support rod 2430 is stuck between the pipe 240 and the inside of the pipe box 2410, and the position between the pipe 240 and the pipe box 2410 is fixed, thereby avoiding the sealing of the pipe 240 and the pipe box 2410 during the cleaning process of the cleaning block 3; and, the upward movement of the convex plate 2431 also drives the baffle 2432 upward, so that the baffle 2432 blocks the multiple groove openings on the inner wall of the pipe box 2410, thereby avoiding grease particles from entering during the exhaust gas output process.

[0049] The cleaning block 3 is made of sponge material, and a plurality of sponge holes of different sizes are arranged inside the cleaning block 3; Fig. 9 As shown, the cleaning block 3 is provided with circular holes from large to small from top to bottom, and arranged in a honeycomb shape, so that the density of the sponge holes at the bottom of the cleaning block 3 is greater than that at the top, so that when the cleaning block 3 is pushed by the exhaust gas, it can have a certain support force and move upward; since the cleaning block 3 is made of sponge material, according to the characteristics of the sponge material, there are a large number of interconnected tiny pores inside the sponge, and these pores increase the surface area of ​​the sponge; when grease contacts the surface of the sponge, due to the van der Waals force and capillary action between molecules, the grease will rise along the wall of the pore and fill the pore, so that the sponge can effectively absorb the grease and store the grease in the pores;

[0050] At the same time, when exhaust gas containing impurities passes through the sponge, larger particles will be blocked by the openings of the sponge pores and cannot enter the pores; since the flow path of the fluid is tortuous, particles have more opportunities to hit the sponge wall as they constantly change direction, and then be adsorbed or attached to the sponge wall; this collision interception mechanism can effectively capture particles that are smaller in size but still larger than the sponge pores, thereby achieving the purpose of filtration.

[0051] In order to maintain the continuous output of drying hot air, a hot air blower 13 is fixedly connected to the top of the base 1, and an air duct 130 is provided between the end of the hot air blower 13 and the bottom plate 110. The hot air blower 13 is used to continuously input hot air into the drying box 12; Figure 2 and Figure 3As shown, the hot air is outputted by the hot air blower 13, and is introduced into the drying box 12 through the air duct 130, so as to perform hot air drying operation on the food in the drying box 12; the working principle of the hot air blower 13 is known to those skilled in the art, that is, the air is driven by the fan to flow through the heating element, so that the air is heated to become hot air and then blown toward the material, mainly relying on convection heating, and partly combined with radiation heating, so that the material absorbs heat, causing the moisture therein to evaporate into water vapor; the continuously circulating air, on the one hand, takes away the water vapor, maintains the humidity difference between the material and the air, and ensures the continuous evaporation of the moisture; on the other hand, the hot air is evenly distributed around the material to ensure uniform drying. In the drying process, the control of temperature and wind speed is crucial. The appropriate temperature can avoid damage to the material and ensure the drying effect. The appropriate wind speed can both speed up the drying and prevent abnormalities on the surface of the material. Both need to be reasonably regulated according to the material characteristics and drying requirements, so as to achieve the purpose of efficient and high-quality drying.

[0052] In summary, the working principle of this scheme is as follows:

[0053] Firstly, the rotating rod 2411 is used as the core axis of the entire rotating system, so that no matter what kind of operating force the pipe box 2410 is rotated under, the round block 2412 can ensure that the rotating rod 2411 is always stably located at the predetermined position inside the pipe 240, which provides a solid and reliable foundation for the subsequent operations of the pipe box 2410, so that the stability of the entire system is effectively guaranteed from the beginning; when the installation operation of the cleaning block 3 is required, the operator only needs to apply a suitable external force to push the pipe box 2410, and the pipe box 2410 will rotate out of the bottom of the pipe 240 with the rotating rod 2411 as the center of the circle, so that the cleaning block 3 can be placed inside the pipe box 2410, and it is fully prepared for the subsequent cleaning work;

[0054] When the cleaning block 3 successfully enters the pipe box 2410, the cleaning block 3 acts on the multiple convex plates 2431 by virtue of its own gravity; under the continuous pressure of this gravity, the convex plates 2431 drive the support rods 2430 to move downward toward the inside of the pipe box 2410; at the same time, the elastic member 2433 is also compressed in this process, and the operator can freely push the pipe box 2410 to return to the initial position at the bottom of the pipe 240, thereby successfully completing the installation process of the cleaning block 3 inside the pipe 240, forming an efficient and smooth installation process;

[0055] When the drying operation starts, the conveyor 11 moves the food one by one to the inside of the drying box 12, located at the top of the bottom plate 110, to ensure that each piece of food can be dried in the best position; then, the hot air blower 13 starts and outputs hot air; these hot airs flow into the drying box 12 under the guidance of the air duct 130 to perform hot air drying operation on the food; in this process, the hot air that continuously surges upward and the waste heat generated therewith flow in an orderly manner along the pipe 240 toward the direction of the input pipe 23; at this time, the cleaning block 3 steadily climbs upward along the inner wall of the pipe 240 under the powerful driving force of the exhaust gas; in this moving process, the cleaning block 3 gives full play to its excellent The filter block 240 has the dual functions of filtering and cleaning. On the one hand, its unique porous structure and adsorption material are like a fine and tough filter, which accurately intercepts various particulate impurities in the exhaust gas, thereby effectively ensuring the cleanliness of the inside of the pipe 240 and avoiding the accumulation of impurities in the pipe 240 and the influence of the heat exchange efficiency on the heat exchange efficiency. On the other hand, when the cleaning block 3 is in close contact with the inner wall of the pipe 240, its special surface material and texture design remove the grease attached to the inner wall of the pipe 240, effectively preventing the thickening of the grease layer from weakening the heat transfer performance, ensuring that the pipe 240 always maintains a good heat transfer efficiency, and providing a strong guarantee for the stable operation of the entire drying system.

[0056] As the cleaning block 3 is separated from the pipe box 2410, the multiple convex plates 2431 lose the pressure of the gravity of the cleaning block 3. At this time, the elastic member 2433, which has been in a compressed state, rebounds quickly and drives the convex plates 2431 and the support rod 2430 to move in the opposite direction, that is, upward. In this process, the support rod 2430 is accurately stuck between the pipe 240 and the inside of the pipe box 2410, so that it always maintains a stable connection state during the cleaning process of the cleaning block 3, effectively avoiding exhaust gas leakage or impurities caused by problems with the sealing between the pipe 240 and the pipe box 2410 Intrusion and the like are prevented from occurring, further ensuring the stable operation and cleaning effect of the entire system; at the same time, the upward movement of the convex plate 2431 also cleverly drives the baffle plate 2432 to move upward synchronously, strictly shielding the multiple groove openings on the inner wall of the pipe box 2410; during the exhaust gas output process, these groove openings may originally become channels for grease particles to invade, but due to the timely shielding of the baffle plate 2432, the entry of grease particles is successfully prevented, further ensuring the cleanliness of the interior of the pipe box 2410, providing all-round protection for the efficient operation of the entire system;

[0057] When the drying work is finished, the cleaning block 3, due to the loss of the driving force of the exhaust gas, slowly moves downward along the inner wall of the pipe 240 under the action of its own gravity; in this process, the cleaning block 3 again exerts its adsorption capacity to wipe the inner wall of the pipe 240 again, and finally cleans and adsorbs the grease and other impurities that may be attached to the inner wall of the pipe 240 again during the drying process, ensuring that the pipe 240 remains in a good clean state after the drying work is finished; until the cleaning block 3 finally falls into the pipe box 2410, its own gravity acts on the multiple convex plates 2431 again, repeating the previous mechanical process, so that the support rod 2430 is moved back to the pipe box 2410 from the inside of the pipe 240 in an orderly manner under the action of pressure, creating an obstacle-free condition for the rotation of the pipe box 2410 out of the bottom of the pipe 240; the operator can now easily rotate and remove the pipe box 2410, and replace the cleaning block 3 in a timely and efficient manner, making full preparations for the smooth implementation of the next drying work.

[0058] The above shows and describes the basic principles, main features and advantages of the present invention. Those skilled in the art should understand that the present invention is not limited by the above embodiments. The above embodiments and descriptions are only preferred examples of the present invention and are not intended to limit the present invention. Without departing from the spirit and scope of the present invention, the present invention may have various changes and improvements, which fall within the scope of the present invention. The scope of protection of the present invention is defined by the attached claims and their equivalents.

Claims

1. A drying device with heat recovery function, comprising a base (1), characterized in that: A conveying device (11) is provided on the top of the base (1), a drying box (12) is provided near the center of the top of the conveying device (11), and a bottom plate (110) is provided inside the conveying device (11) directly below the drying box (12); A heat recovery device (2) is provided between the top of the drying box (12) and the top of the base (1), the heat recovery device (2) comprising a heat exchanger (21), the heat exchanger (21) being fixedly connected to the top of the base (1), an output pipe (22) being provided between the heat exchanger (21) and the bottom plate (110), a waste heat component (24) being provided at the top of the drying box (12), an input pipe (23) being provided between the heat exchanger (21) and the waste heat component (24), and a cleaning block (3) being provided inside the waste heat component (24); When the heat exchange operation is started, the cleaning block (3) moves to the top of the waste heat component (24) to filter the waste heat input into the heat exchanger (21), and cleans the grease on the inner wall of the waste heat component (24) during the movement of the cleaning block (3); the waste heat component (24) remains in a locked state when the cleaning block (3) moves to improve the sealing performance; when the cleaning block (3) reaches the upper limit of cleaning, it falls due to its own gravity and resets to the bottom of the waste heat component (24); when the cleaning block (3) stops moving, the sealing state of the waste heat component (24) is opened, so that the cleaning block (3) can be replaced in time.

2. The drying equipment with heat recovery function according to claim 1 is characterized in that: The waste heat component (24) comprises a support plate (242), the support plate (242) being arranged on the top of the drying box (12), a rotating component (241) being arranged on the top of the support plate (242), a pipeline (240) being arranged between the top of the rotating component (241) and the input pipe (23), and a plurality of locking components (243) being arranged between the inside of the rotating component (241) and the pipeline (240).

3. The drying equipment with heat recovery function according to claim 2 is characterized in that: The rotating assembly (241) comprises a pipe box (2410), wherein the pipe box (2410) is arranged between the pipeline (240) and the support plate (242), and a rotating rod (2411) is fixedly connected to the top of the pipe box (2410).

4. The drying equipment with heat recovery function according to claim 3 is characterized in that: A round block (2412) is fixedly connected to the top of the rotating rod (2411), and the rotating rod (2411) and the round block (2412) are movably connected inside the pipe (240). A plurality of locking components (243) are provided between the inside of the pipe box (2410) and the inside of the pipe (240).

5. The drying equipment with heat recovery function according to claim 4 is characterized in that: The locking assembly (243) comprises a support rod (2430), wherein the support rod (2430) is movably connected between the pipeline (240) and the inside of the pipe box (2410), and an elastic member (2433) is fixedly connected between the bottom of the support rod (2430) and the inside of the pipe box (2410).

6. The drying device with heat recovery function according to claim 5, characterized in that: A convex plate (2431) is fixedly connected to the outer wall of the support rod (2430) near the bottom, and a baffle (2432) is fixedly connected to the bottom of the convex plate (2431). Both the convex plate (2431) and the baffle (2432) are movably connected inside the pipe box (2410).

7. The drying equipment with heat recovery function according to claim 1, characterized in that: The cleaning block (3) is made of sponge material, and a plurality of sponge holes of different sizes are arranged inside the cleaning block (3).

8. The drying equipment with heat recovery function according to claim 1, characterized in that: A hot air blower (13) is fixedly connected to the top of the base (1), and an air duct (130) is provided between the end of the hot air blower (13) and the bottom plate (110). The hot air blower (13) is used to continuously input hot air into the drying box (12).

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