Continuous dough proofing device with waste heat recovery function

Abstract

The application discloses a continuous dough leavening device with waste heat recovery function and belongs to the dough processing technical field, which comprises a machine body, a waste heat recovery component is arranged on the inner and outer sides of the machine body, the waste heat recovery component comprises an inner container fixedly connected in the machine body, and a water storage cavity is arranged between the inner wall of the machine body and the outer surface of the inner container, when the spiral copper pipe conveying hot air passes through the water storage cavity, the water source in the water storage cavity absorbs heat, and the waste heat emission is reduced; since the cold water layer serves as a low heat conduction medium, the heat transfer efficiency of the inner container to the outer shell can be obviously reduced, the heat loss through the barrel wall of the machine body is reduced, the uniform heat transfer characteristics of the spiral copper pipe can reduce the temperature fluctuation of the inner container, the up-down temperature difference problem caused by the upward movement of hot air in the machine body is prevented, the steam generated by the heated water source can be uniformly released to the inner container through the spiral copper pipe, the local humidity is prevented from being too high, and the temperature of the hot air discharged through the cold water is also reduced.

Description

Technical Field

[0001] This invention relates to the field of dough processing technology, and more specifically, to a continuous dough proofing device with waste heat recovery function. Background Technology

[0002] Fermentation boxes, also known as proofing boxes, are mostly made of stainless steel. The temperature is controlled between 36-38 degrees Celsius, and the humidity between 80-85%. Types of fermentation boxes include refrigerated fermentation boxes, stackable fermentation boxes, professional-grade household fermentation boxes, dual-purpose household and commercial fermentation boxes, and ultrasonic humidified fermentation boxes. The working principle of a proofing box is to use electric heating elements to heat and evaporate the water in the water tank, allowing the dough to ferment and expand fully under specific temperature and humidity conditions. Proofing boxes are usually equipped with an automated control system that can monitor and adjust parameters such as temperature and humidity inside the box. In manual mode, it automatically controls the operation according to the set time. In automatic control mode, it follows the set time intervals for freezing → refrigeration → proofing 1 → proofing 2 processes to complete the entire work procedure.

[0003] During operation, dough proofing devices generate a certain amount of waste heat. This waste heat mainly originates from the heat that is not fully absorbed by the dough during the heating process of heating elements (such as electric heating tubes, hot oil baths, etc.), as well as heat loss during air circulation within the device. The proofing device heats the air inside the chamber using heating elements (such as electric heating tubes) to create a suitable proofing environment. During heating, some heat is lost to the environment through the chamber walls or vents, forming waste heat. To maintain temperature uniformity within the chamber, proofing devices are usually equipped with an air circulation system (such as a circulating fan). During air circulation, some heat is lost due to airflow, also forming waste heat. The dough also generates a small amount of heat during fermentation; if this heat is not absorbed or utilized in time, it will also become part of the waste heat.

[0004] In existing technologies, the device needs to maintain a constant temperature (usually 35-40℃) and humidity (70%-90%) during the proofing process, which consumes a large amount of heat energy. If the waste heat is directly discharged, it will result in energy waste and will also cause the workshop temperature to rise, which may affect the comfort of workers, especially in summer, and may even require additional investment in refrigeration equipment. Summary of the Invention

[0005] To address the problems existing in the prior art, the purpose of this invention is to provide a continuous dough proofing device with waste heat recovery function.

[0006] To solve the above problems, the present invention adopts the following technical solution, which can reduce the temperature fluctuation of the inner tank by using the uniform heat transfer characteristics of the spiral copper tube, and the steam generated by heating the water source can be evenly released into the inner tank through the spiral copper tube to avoid excessive local humidity. At the same time, the temperature will also decrease after the hot air passing through the cold water is discharged.

[0007] A continuous dough proofing device with waste heat recovery function includes a machine body and a top cover disposed on the upper side of the machine body. The inner and outer sides of the machine body are provided with waste heat recovery components, and the waste heat recovery components include an inner liner fixedly connected to the inside of the machine body.

[0008] A water storage cavity is formed between the inner wall of the machine body and the outer surface of the inner liner. A spiral copper tube is installed inside the water storage cavity. A connecting pipe is inserted into the inside of the top cover. A connector is fixedly connected to the bottom right side of the connecting pipe. The top end of the spiral copper tube is inserted into the inside of the connecting pipe through the connector. A sealing ring is fixedly connected inside the connector. The sealing ring is sleeved on the outside of the spiral copper tube. An air outlet is formed on the lower side of the top cover. A water inlet pipe is fixedly connected to the upper left side of the machine body. A water outlet pipe is fixedly connected to the lower right side of the machine body.

[0009] Furthermore, the bottom end of the spiral copper tube extends to the lower side of the machine body, the connecting pipe is connected to the spiral copper tube through a connector, the air outlet is connected to the connecting pipe, the left end of the connecting pipe extends to the upper inside of the air outlet, and the air outlet is frustum-shaped.

[0010] Furthermore, the right end of the water inlet pipe extends into the interior of the water storage chamber, and the water inlet pipe is connected to the water storage chamber. The left end of the water outlet pipe extends into the interior of the water storage chamber, and the water outlet pipe is connected to the water storage chamber. The other ends of both the water inlet pipe and the water outlet pipe are connected to an external water supply device.

[0011] Furthermore, the machine body is provided with a rotating component inside, which includes a rotating rod fixedly connected to the lower output end inside the machine body.

[0012] Furthermore, the left and right sides of the outer surface of the rotating rod are provided with sliding grooves, and the sliding grooves are slidably connected with sliding strips. The outer surfaces of the sliding strips on the left and right sides are fixedly connected with sleeves. The sleeves are fitted on the outside of the rotating rod. The outer surfaces of the sleeves are arranged in a longitudinal linear array and fixedly connected with trays. The lower side of the inner side of the trays is provided with multiple hollow grooves.

[0013] Furthermore, the interior of the machine body is provided with a flow guiding component, which includes a honeycomb disk fixedly connected inside the air outlet.

[0014] Furthermore, a connecting post is fixedly connected to the top of the rotating rod, and multiple scrapers are fixedly connected to the outer surface of the connecting post. The multiple scrapers slide in contact with the lower side of the honeycomb disk with the connecting post as the center.

[0015] Furthermore, a through hole is provided on the outer surface of the sleeve, the sleeve and the air outlet are on the same vertical horizontal line, and the length of the scraper is less than the radius of the inner cavity of the sleeve.

[0016] Furthermore, the back of the machine body is provided with a cover-opening assembly, which includes a base fixedly connected to the back of the machine body.

[0017] Furthermore, a cylinder is installed inside the base, and the telescopic end of the cylinder passes through the upper side of the base. A fixed seat is fixedly connected to the telescopic end of the cylinder. The fixed seat is "L"-shaped. A connecting block is hinged to the upper side of the horizontal part of the fixed seat. The front side of the connecting block is fixedly connected to the back side of the top cover. A magnetic block is fixedly connected to the right side of the vertical part of the fixed seat. After the upper side of the connecting block is flipped, it magnetically attracts the right side of the magnetic block.

[0018] Compared with the prior art, the beneficial effects of the present invention are as follows:

[0019] (1) When hot air is transported by the spiral copper tube, it passes through the water storage chamber and absorbs heat through the water source inside the water storage chamber, reducing waste heat emission. Since the cold water layer is a low thermal conductivity medium, it can significantly reduce the heat transfer efficiency from the inner tank to the outer shell and reduce heat loss through the cylinder wall. The uniform heat transfer characteristics of the spiral copper tube can reduce the temperature fluctuation of the inner tank and prevent the temperature difference between the upper and lower parts of the machine body caused by the rise of hot air. The steam generated by heating the water source can be evenly released to the inner tank through the spiral copper tube to avoid excessive local humidity. The temperature will also decrease after the hot air is discharged through the cold water.

[0020] (2) The present invention uses a tray that is rotated by a rotating rod, so that the dough placed on the tray begins to rotate slowly. When the sleeve rotates, it causes the tray and the dough on it to make a circular motion, so that the dough can receive moisture evenly in all parts during the proofing process, thus improving the proofing quality. At the same time, the tray rotates slowly by the rotating rod, so that the dough is exposed to different temperature areas alternately, reducing local overheating or overcooling.

[0021] (3) In this invention, the honeycomb disk will divide the hot air when it passes through. Because the honeycomb disk disperses the exhaust airflow into fine airflow through the porous design, it can reduce direct convection impact, reduce turbulence and noise generation. The honeycomb disk significantly increases the contact area between the gas and the solid surface through the dense channel design. When the hot air is discharged, it can promote the heat exchange between the hot air and the spiral copper tube, accelerate the cooling of the hot air, and reduce the airflow resistance, making the exhaust smoother. Attached Figure Description

[0022] Figure 1 This is a schematic diagram of the structure of the present invention;

[0023] Figure 2 This is a cross-sectional structural diagram of the present invention;

[0024] Figure 3 This is a cross-sectional view of the inner liner of the present invention;

[0025] Figure 4 This is a cross-sectional view of the sleeve of the present invention;

[0026] Figure 5 This is a cross-sectional view of the top cover of the present invention;

[0027] Figure 6 For the present invention Figure 5 Enlarged view of point A;

[0028] Figure 7 This is a cross-sectional view of the air outlet of the present invention;

[0029] Figure 8 For the present invention Figure 7 Enlarged diagram of point B.

[0030] Explanation of the labels in the diagram:

[0031] 1. Body; 11. Top cover; 2. Waste heat recovery component; 21. Inner liner; 22. Water storage chamber; 23. Spiral copper tube; 24. Connector; 25. Sealing ring; 26. Connecting pipe; 27. Air outlet; 28. Water inlet pipe; 29. ​​Water outlet pipe; 3. Rotating component; 31. Rotating rod; 32. Slide groove; 33. Slide bar; 34. Sleeve; 35. Tray; 36. Flow guide component; 361. Honeycomb plate; 362. Connecting column; 363. Scraper; 364. Through hole; 37. Cover opening component; 371. Base; 372. Cylinder; 373. Fixing seat; 374. Connecting block; 375. Magnetic block. Detailed Implementation

[0032] The technical solutions of the embodiments of the present invention will be clearly and completely described below with reference to the accompanying drawings. Obviously, the described embodiments are only some embodiments of the present invention, and not all embodiments. All other embodiments obtained by those skilled in the art based on the embodiments of the present invention without creative effort are within the scope of protection of the present invention.

[0033] Please see Figures 1 to 8A continuous dough proofing device with waste heat recovery function includes a body 1 and a top cover 11 disposed on the upper side of the body 1. A waste heat recovery component 2 is provided on both the inner and outer sides of the body 1. The waste heat recovery component 2 includes an inner liner 21 fixedly connected inside the body 1.

[0034] A water storage cavity 22 is provided between the inner wall of the body 1 and the outer surface of the inner liner 21. A spiral copper tube 23 is installed inside the water storage cavity 22. A connecting pipe 26 is inserted into the inside of the top cover 11. A connector 24 is fixedly connected to the bottom right side of the connecting pipe 26. The top end of the spiral copper tube 23 is inserted into the inside of the connecting pipe 26 through the connector 24. A sealing ring 25 is fixedly connected inside the connector 24. The sealing ring 25 is sleeved on the outside of the spiral copper tube 23. An air outlet 27 is provided on the lower side of the top cover 11. A water inlet pipe 28 is fixedly connected to the upper left side of the body 1. A water outlet pipe 29 is fixedly connected to the lower right side of the body 1.

[0035] The bottom end of the spiral copper tube 23 extends to the lower side of the body 1. The connecting tube 26 is connected to the spiral copper tube 23 through the connector 24. The air outlet 27 is connected to the connecting tube 26. The left end of the connecting tube 26 extends to the upper side of the interior of the air outlet 27. The air outlet 27 is truncated cone-shaped.

[0036] The right end of the inlet pipe 28 extends into the interior of the water storage chamber 22, and the inlet pipe 28 is connected to the water storage chamber 22. The left end of the outlet pipe 29 extends into the interior of the water storage chamber 22, and the outlet pipe 29 is connected to the water storage chamber 22. The other ends of the inlet pipe 28 and the outlet pipe 29 are both connected to an external water supply device.

[0037] By adopting the above technical solution, during the operation of the machine body 1, the heating element configured inside the machine body 1 heats the air in the inner liner 21 and generates forced airflow to create a suitable proofing environment. During the heating process, some heat will be dissipated into the surrounding environment to form waste heat. At the same time, a small amount of heat will also be generated during the dough fermentation process, which will also become waste heat if not utilized in time. Some waste heat enters the air outlet 27 under the action of forced airflow, and then enters the spiral copper tube 23 inside the water storage chamber 22 through the connecting pipe 26 and interface. During this process, the external water supply equipment delivers cold water to the water storage chamber 22 through the water inlet pipe 28. Because the spiral copper tube 23 has a large heat exchange area and copper has good thermal conductivity, the waste heat will raise the temperature of the air around the spiral copper tube 23 and be absorbed by the water source inside the water storage chamber 22. At the same time, the heat transferred through the inner liner 21 will also be absorbed by the water source inside the water storage chamber 22. The heated water can flow out through the water outlet pipe 29, while the hot air transported through the spiral copper tube 23 will be delivered to the control end of the machine body 1 and then discharged.

[0038] It should be noted that the circulating fan installed inside the bottom of the main body 1 provides an upward forced airflow into the main body 1, creating a positive pressure difference at the air outlet 27. This overcomes the friction resistance generated when the hot airflow flows inside the spiral copper tube 23, forcibly driving the waste heat airflow through the cold water layer to be discharged smoothly. The temperature of the discharged gas is significantly reduced. At the same time, the cooling water inside the water storage chamber 22 flows from top to bottom, forming a counter-current heat exchange structure with the waste heat airflow discharged from the spiral copper tube 23 from bottom to top. Since the cold water layer is a low thermal conductivity medium, it can significantly reduce the heat transfer efficiency from the inner liner 21 to the outer shell, reducing heat loss through the cylinder wall of the main body 1. The uniform heat transfer characteristics of the spiral copper tube 23 can reduce temperature fluctuations in the inner liner 21, preventing temperature differences between the top and bottom of the main body 1 caused by rising hot air. The steam generated by the heating water source can be evenly released into the inner liner 21 through the spiral copper tube 23, avoiding excessive local humidity. The temperature of the hot air after passing through the cold water is also reduced.

[0039] like Figures 3 to 6 As shown, the machine body 1 is provided with a rotating component 3 inside, and the rotating component 3 includes a rotating rod 31 fixedly connected to the lower output end inside the machine body 1.

[0040] The left and right sides of the outer surface of the rotating rod 31 are provided with sliding grooves 32. The sliding grooves 32 are slidably connected to the inside of the sliding strips 33. The outer surfaces of the left and right sliding strips 33 are fixedly connected to the sleeves 34. The sleeves 34 are sleeved on the outside of the rotating rod 31. The outer surface of the sleeves 34 is arranged in a longitudinal linear array and fixedly connected to the trays 35. The lower side of the inside of the trays 35 is provided with multiple hollow grooves.

[0041] By adopting the above technical solution, after the machine body 1 is in operation, the output end of the drive structure configured inside it drives the rotating rod 31 to rotate. Slide grooves 32 are provided on the left and right sides of the outer surface of the rotating rod 31, and slide bars 33 are slidably connected within the slide grooves 32. Sleeves 34 are fixedly connected to the outer surfaces of the slide bars 33 on both sides. The sleeves 34 are fitted onto the outside of the rotating rod 31. Thus, when the rotating rod 31 rotates, the cooperation between the slide grooves 32 and the slide bars 33 drives the sleeves 34 to rotate as well. Multiple trays 35 are fixedly connected to the outer surface of the sleeves 34 in a longitudinal linear array. The trays 35 are used to place... The tray 35, which is for dough to proof, has multiple hollow slots running through its lower interior. These slots allow air to circulate throughout the tray 35, ensuring the dough is fully exposed to the heated air. They also facilitate even distribution of moisture. As the sleeve 34 rotates, it causes the tray 35 and the dough on it to move in a circular motion, ensuring that all parts of the dough receive moisture evenly during proofing, thus improving proofing quality. At the same time, the tray 35 rotates slowly via the rotating rod 31, allowing the dough to be exposed to different temperature zones alternately, reducing local overheating or undercooling.

[0042] like Figures 5 to 8As shown, the body 1 has an internal flow guiding component 36, which includes a honeycomb disk 361 fixedly connected inside the air outlet 27.

[0043] A connecting post 362 is fixedly connected to the top of the rotating rod 31. Multiple scraper strips 363 are fixedly connected to the outer surface of the connecting post 362. The multiple scraper strips 363 slide in contact with the lower side of the honeycomb disk 361 with the connecting post 362 as the center.

[0044] A through hole 364 is provided on the outer surface of the sleeve 34. The sleeve 34 and the air outlet 27 are on the same vertical horizontal line. The length of the scraper 363 is less than the radius of the inner cavity of the sleeve 34.

[0045] By adopting the above technical solution, when hot air is discharged from the air outlet 27 of the top cover 11, it first passes through the honeycomb disk 361 fixedly connected inside the air outlet 27. The honeycomb disk 361 has numerous regularly arranged small holes, which can disperse and guide the hot air. When the hot air passes through the small holes of the honeycomb disk 361, it is divided into multiple fine airflows. At the same time, a connecting post 362 is fixedly connected to the top of the rotating rod 31, and multiple scraper strips 363 are fixedly connected to the outer surface of the connecting post 362. The multiple scraper strips 363 slide around the connecting post 362 with the lower side of the honeycomb disk 361. In the process of rotating the rotating rod 31 and driving the sleeve 34 and tray 35 to rotate, the connecting column 362 will also rotate, thereby driving the scraper 363 to slide on the underside of the honeycomb plate 361. Since the honeycomb plate 361 disperses the exhaust airflow into fine airflow through the porous design, it can reduce direct convection impact, and at the same time reduce turbulence and noise generation. The honeycomb plate 361 significantly increases the contact area between the gas and the solid surface through the dense channel design. When exhausting hot gas, it can promote the heat exchange between the hot gas and the spiral copper tube 23, accelerate the cooling of the hot gas, and reduce airflow resistance, making the exhaust smoother.

[0046] like Figures 1 to 3 As shown, the back side of the body 1 is provided with a cover opening assembly 37, which includes a base 371 fixedly connected to the back side of the body 1.

[0047] A cylinder 372 is installed inside the base 371, and the telescopic end of the cylinder 372 passes through the upper side of the base 371. A fixed seat 373 is fixedly connected to the telescopic end of the cylinder 372. The fixed seat 373 is "L" shaped. A connecting block 374 is hinged to the upper side of the horizontal part of the fixed seat 373. The front side of the connecting block 374 is fixedly connected to the back side of the top cover 11. A magnetic block 375 is fixedly connected to the right side of the vertical part of the fixed seat 373. After the upper side of the connecting block 374 is flipped, it magnetically attracts the right side of the magnetic block 375.

[0048] By adopting the above technical solution, when it is necessary to open the top cover 11, the cylinder 372 inside the base 371 is activated. The telescopic end of the cylinder 372 extends upward. Since the telescopic end of the cylinder 372 is located on the lower side of the horizontal part of the "L"-shaped fixed seat 373, and a connecting block 374 is hinged to the upper side of the horizontal part of the fixed seat 373, and the front side of the connecting block 374 is fixedly connected to the back side of the top cover 11, when the telescopic end of the cylinder 372 moves upward, it will push the horizontal part of the fixed seat 373 to move upward. Under the action of the hinge structure, the connecting block 374 will drive the top cover 11 to rotate upward around the hinge point. At the same time, the connector 24 disengages from the spiral copper tube 23, realizing the opening of the top cover 11. When the top cover 11 is rotated to a certain angle, the connecting block 374... 4. The upper side is magnetically attracted to the right side of the magnetic block 375, which is fixedly connected to the right side of the vertical part of the fixed base 373, so that the top cover 11 is kept in the open position, which is convenient for the operator to place or remove the dough. After the operation is completed, the cylinder 372 is activated again, so that the extension end of the cylinder 372 retracts downward. With the assistance of the magnetic force of the magnetic block 375 and the action of gravity, the top cover 11 will flip downward around the hinge point. Since the extension degree of the cylinder 372 can be freely adjusted when it is necessary to observe the state inside the inner liner 21, the distance between the top cover 11 and the machine body 1 can be controlled to reduce the heat loss inside the inner liner 21, and ensure that the top cover 11 can be stably sealed during the operation of the device, maintaining a suitable proofing environment inside the machine body 1.

[0049] Working principle: When the machine body 1 is running, the heating element generates waste heat. Some of the waste heat enters the spiral copper pipe 23 through the air outlet 27 and connecting pipe 26 under the action of forced airflow. The external water supply equipment delivers cold water to the water storage chamber 22 through the water inlet pipe 28. The waste heat is absorbed by the water, and the heated water flows out through the water outlet pipe 29. The hot air is delivered to the control end of the machine body 1 for discharge. The cold water layer can reduce heat loss, stabilize the temperature of the inner tank 21, and release steam evenly. The machine body 1 is equipped with a rotating part 3. The drive structure drives the rotating rod 31 to rotate. Through the cooperation of the sliding groove 32 and the sliding strip 33, the sleeve 34 and the tray 35 are rotated. The tray 35 holds the dough and has a hollow groove to ensure air circulation and moisture. The even distribution of moisture ensures that the dough receives moisture evenly and reduces local temperature differences. The machine body 1 is equipped with a flow guide component 36, and the air outlet 27 is equipped with a honeycomb plate 361 to disperse and guide hot air. The connecting column 362 at the top of the rotating rod 31 drives the scraper 363 to slide under the honeycomb plate 361, which promotes heat exchange between hot air and spiral copper tube 23, accelerates cooling, and reduces airflow resistance. The back of the machine body 1 is equipped with a cover opening component 37. The telescopic end of the cylinder 372 in the base 371 pushes the horizontal part of the "L"-shaped fixed seat 373, causing the top cover 11 to flip around the hinge point. After flipping, the connecting block 374 and the magnetic block 375 are attracted to each other, which can control the distance between the top cover 11 and the machine body 1, reduce heat loss, and ensure sealing.

[0050] The above description is merely a preferred embodiment of the present invention; however, the scope of protection of the present invention is not limited thereto. Any equivalent substitutions or modifications made by those skilled in the art within the scope of the technology disclosed in the present invention, based on the technical solution and its improved concepts, should be covered within the scope of protection of the present invention.

Claims

1. A continuous dough proofing device with waste heat recovery function, comprising a body (1) and a top cover (11) disposed on the upper side of the body (1), characterized in that: The inner and outer sides of the body (1) are provided with a waste heat recovery component (2), and the waste heat recovery component (2) includes an inner liner (21) fixedly connected inside the body (1). A water storage cavity (22) is provided between the inner wall of the body (1) and the outer surface of the inner liner (21). A spiral copper tube (23) is provided inside the water storage cavity (22). A connecting tube (26) is inserted into the inside of the top cover (11). A connector (24) is fixedly connected to the bottom right side of the connecting tube (26). The top end of the spiral copper tube (23) is inserted into the inside of the connecting tube (26) through the connector (24). A sealing ring (25) is fixedly connected inside the connector (24). The sealing ring (25) is sleeved on the outside of the spiral copper tube (23). An air outlet (27) is provided on the lower side of the top cover (11). A water inlet pipe (28) is fixedly connected to the upper left side of the body (1). A water outlet pipe (29) is fixedly connected to the lower right side of the body (1).

2. The continuous dough proofing device with waste heat recovery function according to claim 1, characterized in that: The bottom end of the spiral copper tube (23) extends to the lower side of the body (1). The connecting tube (26) is connected to the spiral copper tube (23) through the connector (24). The air outlet (27) is connected to the connecting tube (26). The left end of the connecting tube (26) extends to the upper side of the inside of the air outlet (27). The air outlet (27) is frustum-shaped.

3. The continuous dough proofing device with waste heat recovery function according to claim 1, characterized in that: The right end of the inlet pipe (28) extends into the interior of the water storage chamber (22), and the inlet pipe (28) is connected to the water storage chamber (22). The left end of the outlet pipe (29) extends into the interior of the water storage chamber (22), and the outlet pipe (29) is connected to the water storage chamber (22). The other ends of the inlet pipe (28) and the outlet pipe (29) are both connected to an external water supply device.

4. A continuous dough proofing device with waste heat recovery function according to claim 3, characterized in that: The machine body (1) is provided with a rotating component (3) inside, and the rotating component (3) includes a rotating rod (31) fixedly connected to the lower output end inside the machine body (1).

5. A continuous dough proofing device with waste heat recovery function according to claim 4, characterized in that: The rotating rod (31) has sliding grooves (32) on both the left and right sides of its outer surface. Sliding strips (33) are slidably connected inside the sliding grooves (32). Sleeves (34) are fixedly connected to the outer surfaces of the sliding strips (33) on both the left and right sides. The sleeves (34) are sleeved on the outside of the rotating rod (31). The outer surface of the sleeves (34) is arranged in a longitudinal linear array and fixedly connected to a tray (35). Multiple hollow grooves are opened through the lower side of the inside of the tray (35).

6. A continuous dough proofing device with waste heat recovery function according to claim 5, characterized in that: The body (1) is provided with a flow guiding component (36) inside, the flow guiding component (36) including a honeycomb disk (361) fixedly connected inside the air outlet (27).

7. A continuous dough proofing device with waste heat recovery function according to claim 6, characterized in that: The top of the rotating rod (31) is fixedly connected to a connecting post (362), and a plurality of scraper strips (363) are fixedly connected to the outer surface of the connecting post (362). The plurality of scraper strips (363) slide in contact with the lower side of the honeycomb disk (361) with the connecting post (362) as the center.

8. A continuous dough proofing device with waste heat recovery function according to claim 7, characterized in that: The outer surface of the sleeve (34) is provided with a through hole (364), the sleeve (34) and the air outlet (27) are on the same vertical horizontal line, and the length of the scraper (363) is less than the radius of the inner cavity of the sleeve (34).

9. A continuous dough proofing device with waste heat recovery function according to claim 1, characterized in that: The back of the body (1) is provided with a cover opening assembly (37), which includes a base (371) fixedly connected to the back of the body (1).

10. A continuous dough proofing device with waste heat recovery function according to claim 9, characterized in that: A cylinder (372) is installed inside the base (371), and the telescopic end of the cylinder (372) passes through the upper side of the base (371). A fixed seat (373) is fixedly connected to the telescopic end of the cylinder (372). The fixed seat (373) is "L" shaped. A connecting block (374) is hinged to the upper side of the horizontal part of the fixed seat (373). The front side of the connecting block (374) is fixedly connected to the back side of the top cover (11). A magnetic block (375) is fixedly connected to the right side of the vertical part of the fixed seat (373). After the upper side of the connecting block (374) is flipped, it magnetically attracts the right side of the magnetic block (375).

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