Cheese dyeing wastewater waste heat utilization device and process

Abstract

The invention relates to the technical field of dyeing wastewater treatment, and discloses a cheese dyeing wastewater waste heat utilization device and a utilization process. The cheese dyeing wastewater waste heat utilization device comprises a supporting frame, a drying box is arranged at the top of the supporting frame, a wastewater tank is arranged on one side of the supporting frame and used for storing dyeing wastewater, and a conveying frame is arranged on the supporting frame; a plurality of sets of overhead plates are arranged on the conveying frame and used for making contact with dyed cheese, mounting plates are arranged at the top of the drying box and the bottom of the conveying frame correspondingly, a set of driving motors are arranged on the mounting plates, an air inlet box is arranged on one side of each mounting plate, fan blades are arranged at the output ends of the driving motors, and a fan box is arranged on one side of each mounting plate; a guide assembly is arranged on the fan box; a contact assembly is arranged on the conveying frame; the guide assembly is used for ensuring multi-angle contact when the cheese is blow-dried; the contact assembly is used for preventing the cheese from being stacked during blow-drying. Compared with the prior art, the drying efficiency is improved, and meanwhile the situation of uneven drying is reduced.

Description

Technical Field

[0001] The invention relates to the technical field of dyeing wastewater treatment, in particular to a cheese dyeing wastewater waste heat utilization device and a utilization process. Background Art

[0002] In the textile industry, cheese dyeing is widely used in the production of various textiles. However, this process often results in the discharge of large amounts of high-temperature wastewater. Direct discharge of this high-temperature wastewater not only wastes energy but also causes thermal pollution to the environment. Existing technologies utilize waste heat recovery devices to recover the waste heat from the high-temperature steam after use, thereby fully utilizing the energy and preventing heat waste and environmental pollution.

[0003] In the textile industry's drying process, traditional cheese drying methods mainly rely on gas heating, electric heating or steam heating systems. Although these methods can meet the drying needs of cheese, they have the following shortcomings: High energy consumption: Traditional drying methods require additional heating, which increases the company's operating costs and increases the energy consumption per unit product; Low thermal energy utilization rate: The wastewater generated by the dyeing process usually has a high temperature, but the existing technology rarely utilizes the waste heat of wastewater, and a large amount of heat energy is not effectively recovered, resulting in energy waste; Large environmental impact: The direct discharge of high-temperature wastewater will cause thermal pollution to the water environment, affecting the balance of the aquatic ecosystem, and at the same time increasing the environmental management pressure of the company; In recent years, in order to improve energy utilization, some processes have adopted heat exchange technology to recover waste heat from high-temperature wastewater, such as using a heat exchanger to preheat cold water entering the dyeing machine or heating the workshop air. However, these methods mainly focus on the front-end dyeing process and pay less attention to the drying link after dyeing. The problem of energy waste still exists. Therefore, the present application discloses a cheese yarn dyeing wastewater waste heat utilization device and utilization process to fully utilize the waste heat of dyeing wastewater, improve drying efficiency, and reduce energy consumption. Summary of the Invention

[0004] (1) Technical problems solved In response to the shortcomings of the existing technology, the present invention provides a device and process for utilizing the waste heat of cheese dyeing wastewater, which has the advantages of fully utilizing the waste heat of dyeing wastewater, improving drying efficiency, and reducing energy consumption, thereby solving the problem of energy waste in the drying process after dyeing.

[0005] (2) Technical solution To achieve the above-mentioned objectives, the present invention provides the following technical solutions: a device for utilizing waste heat from cheese dyeing wastewater and a utilization process, comprising a support frame, a drying box is provided on the top of the support frame, a wastewater tank is provided on one side of the support frame, the wastewater tank is used to store dyeing wastewater, a conveying frame is provided on the support frame, a plurality of overhead plates are provided on the conveying frame, the overhead plates are used to contact the dyed cheese yarn, a mounting plate is provided on the top of the drying box and the bottom of the conveying frame, a group of driving motors are provided on the mounting plate, an air intake box is provided on one side of the mounting plate, fan blades are provided on the output end of the driving motor, a fan box is provided on one side of the mounting plate, and a guide assembly is provided on the fan box; a contact assembly is provided on the conveying frame; the guide assembly is used to ensure multi-angle contact when drying the cheese yarn; the contact assembly is used to prevent the cheese yarn from stacking when drying.

[0006] Preferably, the guide assembly includes a group of connecting rods arranged on one side of the inner wall of the fan box, and a guide cylinder is provided on the connecting rods. The guide cylinder is in a tapered shape with a gradually decreasing opening.

[0007] Preferably, the contact assembly includes a second rotating rod rotatably arranged on the inner wall of the conveying frame, a first contact block is arranged at the center of the second rotating rod, and second contact blocks are arranged at both ends of the second rotating rod, and the angle difference between the first contact block and the second contact block is thirty degrees.

[0008] Preferably, a first rotating rod is rotatably provided on the other side of the inner wall of the fan box, a group of driving blades are provided on the first rotating rod, a group of limiting disks are symmetrically provided on the first rotating rod, a thread groove is provided on the first rotating rod between the limiting disks, the thread groove is a reciprocating double thread structure, a rotating ring is threadedly provided on the thread groove between the two limiting disks, a driving rod is provided at one end of the rotating ring, the driving rod is located in the middle position of the guide cylinder, a contact head is provided at one end of the driving rod, and the contact head can contact the inner wall of the guide cylinder.

[0009] Preferably, a rubber pad is provided on the inner wall of the guide cylinder at a position in contact with the contact head.

[0010] Preferably, the first contact block and the second contact block are both eccentrically arranged semicircular, one end of each of the first contact block and the second contact block contacts the cheese yarn, and the surfaces of the first contact block and the second contact block are both rubber.

[0011] Preferably, a group of guide plates are symmetrically provided at the bottom of the conveying frame, and the guide plates are all plates inclined to one side.

[0012] Preferably, both ends of the waste water tank are provided with connection ports, and the connection port at one end is connected to a heat exchange pipe, the heat exchange pipe is arranged on the inner wall of the support frame and is located above the mounting plate at the bottom of the conveying frame, the heat exchange pipe is connected to a heat exchange plate, and the other end of the heat exchange pipe is connected to a water outlet.

[0013] Preferably, a plurality of heat exchange risers are connected above the heat exchange tubes, and the heat exchange risers are closer to the cheese yarn.

[0014] A cheese dyeing wastewater waste heat utilization process, applied to any of the cheese dyeing wastewater waste heat utilization devices mentioned above, comprises the following steps: S1: Dyeing wastewater collection and heat exchange. After dyeing, the high-temperature wastewater is discharged into the wastewater tank and enters the heat exchange tube through the connection port. The wastewater flows in the heat exchange tube and improves the heat transfer efficiency through the heat exchange plate, transferring the heat to the drying system. The cooled wastewater after heat exchange is discharged from the outlet, completing the waste heat recovery process. S2: Waste heat transfer and hot air circulation. The heat exchange riser arranged above the heat exchange tube is closer to the cheese yarn, preheating the cheese yarn through radiation heat exchange. At the same time, the drive motor drives the fan blades in the fan box to rotate, so that hot air circulation is formed inside the drying box, further improving the drying efficiency. The guide cylinder in the guide assembly optimizes the wind direction, and the drive blades on the first rotating rod adjust the airflow angle to achieve multi-angle drying of the cheese yarn. S3: The cheese yarn is stably and evenly dried. The overhead plate on the conveyor frame supports the cheese yarn to avoid hot air blind spots. The second rotating rod in the contact assembly drives the first contact block and the second contact block to rotate eccentrically, so that the cheese yarn is evenly distributed during the drying process and prevents stacking that affects the drying effect. S4: Hot air is discharged and waste heat is circulated. The fully dried cheese yarn is gradually transported out of the drying box to complete the drying process. The discharged hot air can be partially recovered or discharged to the exhaust gas treatment system to reduce heat energy waste and improve overall energy utilization.

[0015] (3) Beneficial effects Compared with the prior art, the present invention provides a device and process for utilizing waste heat from cheese dyeing wastewater, which has the following beneficial effects: 1. The device and process for utilizing waste heat from cheese dyeing wastewater can efficiently dry cheese by combining waste heat recovery with hot air circulation, and using waste heat from dyeing wastewater as a heat source, thereby improving energy utilization efficiency and reducing energy consumption in the drying process. The dyeing wastewater is stored in a wastewater tank. During the waste heat utilization process, the heat energy is converted into hot air through a heat exchange device and introduced into the drying box through a fan box and an air intake box. The driving motor drives the fan blades to rotate, so that the hot air forms a circulating airflow in the drying box, and the wind direction is adjusted by a guiding component to achieve multi-angle drying of the cheese, thereby improving drying uniformity. The overhead plate on the conveyor frame is in direct contact with the cheese, and cooperates with the contact component to keep the cheese evenly distributed, avoid stacking affecting the drying effect, ensure that the hot air fully contacts the yarn, improve drying efficiency, and reduce uneven drying. It is easy to install and maintain, and has good industrial application value.

[0016] 2. The device and process for utilizing waste heat from dyeing wastewater of cheese yarn use air flow to drive the driving blades to rotate, thereby driving the first rotating rod to rotate synchronously. A pair of limiting disks are symmetrically installed on the first rotating rod, and a thread groove is provided therebetween. The thread groove is a reciprocating double-thread structure, which can drive the rotating ring to move back and forth along the axial direction of the first rotating rod. One end of the rotating ring is connected to the driving rod, and the end of the driving rod is provided with a contact head, which contacts the inner wall of the guide cylinder, and a rubber pad is provided in the contact area to reduce friction. The guide cylinder has a conical structure with a gradually decreasing opening so as to guide the airflow to blow concentratedly toward the cheese yarn. As the fan operates, the rotation of the driving blade causes the rotating ring to move back and forth in the thread groove, thereby driving the contact head to push or adjust the angle of the guide cylinder, thereby realizing dynamic adjustment of the airflow direction, improving the uniform drying effect of the cheese yarn, and being able to realize dynamic adjustment of the hot air direction during the drying process, thereby increasing the contact area between the hot air and the cheese yarn, improving the uniformity of the cheese yarn drying, reducing energy consumption, improving the overall drying efficiency, and enhancing the drying effect.

[0017] 3. The device and process for utilizing waste heat from cheese dyeing wastewater: when the cheese moves on the conveyor frame during the drying process, the first contact block and the second contact block in contact with the cheese will be driven to rotate synchronously with the second rotating rod. The first contact block and the second contact block will swing eccentrically with the rotation of the second rotating rod, applying a slight adjustment force to the cheese to keep it reasonably distributed on the conveyor frame to avoid mutual squeezing or overlapping that affects the drying effect; the cheese is kept evenly arranged during the drying process to prevent stacking from affecting the hot air contact and improve the drying uniformity. The rubber surface design not only increases the stable support for the cheese, but also effectively reduces the damage to the cheese caused by friction. At the same time, the component has a simple structure and can be adaptively adjusted with the wind force or the movement of the conveyor frame, which improves the reliability and adaptability of the device and helps to improve the overall drying efficiency.

[0018] 4. The device and process for utilizing waste heat from cheese dyeing wastewater: when residual water droplets fall during the cheese drying process, the inclined structure of the guide plate allows the water droplets to flow to one side along the plate surface, thereby preventing the water droplets from falling directly into the fan box at the bottom, preventing the hot air flow from being blocked or the blowing effect from being affected by accumulated water, thereby improving the working efficiency and drying effect of the equipment. At the same time, the inclined design can also guide the water droplets to gather in the designated drainage area, reducing the retention of water vapor inside the drying box, helping to maintain the stability of the drying environment, improving the drainage efficiency of the device, and maintaining the stable operation of the drying system. Water droplet guidance can be achieved without additional power, reducing maintenance costs, and improving the reliability and service life of the equipment.

[0019] 5. The device and process for utilizing waste heat from dyeing wastewater from cheese yarn preheats the air in the drying box by utilizing the waste heat from the dyeing wastewater, thereby improving the utilization rate of thermal energy and reducing energy consumption during the drying process. The combination of heat exchange tubes and heat exchange fins increases the heat exchange area, making heat transfer more efficient while reducing heat loss. The arrangement of the heat exchange risers close to the cheese yarn enables the cheese yarn to directly absorb heat energy, thereby improving the drying effect and reducing dependence on additional hot air supply. BRIEF DESCRIPTION OF THE DRAWINGS

[0020] Figure 1 This is a schematic diagram of the three-dimensional structure of the present invention from a first viewing angle; Figure 2 This is a schematic diagram of the three-dimensional structure of the present invention from a second viewing angle; Figure 3 This is a schematic diagram of the internal three-dimensional structure of the drying box of the present invention; Figure 4 This is a schematic diagram of the three-dimensional structure of the conveyor frame of the present invention; Figure 5 This is a partially cutaway three-dimensional structural diagram of the guide tube of the present invention; Figure 6 This is a schematic diagram of the three-dimensional structure of the contact assembly of the present invention; Figure 7 This is a schematic diagram of the movement direction of the contact assembly of the present invention; Figure 8 It is a schematic diagram of the three-dimensional structure of the heat exchange plate of the present invention.

[0021] In the figure: 1. Support frame; 2. Drying box; 3. Conveyor frame; 4. Wastewater tank; 5. Connecting port; 6. Mounting plate; 7. Drive motor; 8. Air intake box; 9. Fan box; 10. Guide cylinder; 11. Connecting rod; 12. First rotating rod; 13. Drive blade; 14. Limiting disk; 15. Threaded groove; 16. Rotating ring; 17. Drive rod; 18. Contact head; 19. Overhead plate; 20. Second rotating rod; 21. First contact block; 22. Second contact block; 23. Guide plate; 24. Heat exchange tube; 25. Heat exchange fin; 26. Heat exchange riser. DETAILED DESCRIPTION

[0022] The following will clearly and completely describe the technical solutions in the embodiments of the present invention in conjunction with the accompanying drawings. 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 making creative efforts are within the scope of protection of the present invention.

[0023] As introduced in the background technology, in order to solve the deficiencies in the existing technology, this application proposes a device and process for utilizing waste heat from cheese dyeing wastewater.

[0024] In a typical embodiment of the present application, Figure 1-8 As shown, a device for utilizing waste heat from cheese dyeing wastewater and a utilization process thereof include a support frame 1, a drying box 2 is provided on the top of the support frame 1, a wastewater tank 4 is provided on one side of the support frame 1, the wastewater tank 4 is used to store dyeing wastewater, a conveying frame 3 is provided on the support frame 1, and a plurality of overhead plates 19 are provided on the conveying frame 3, the overhead plates 19 are used to contact with the dyed cheese, a mounting plate 6 is provided on the top of the drying box 2 and the bottom of the conveying frame 3, a group of driving motors 7 are provided on the mounting plate 6, an air intake box 8 is provided on one side of the mounting plate 6, a fan blade is provided on the output end of the driving motor 7, a fan box 9 is provided on one side of the mounting plate 6, and a guide assembly is provided on the fan box 9; a contact assembly is provided on the conveying frame 3; the guide assembly is used to ensure multi-angle contact when drying the cheese; the contact assembly is used to prevent the cheese from stacking when drying; The cheese yarn is efficiently dried by combining waste heat recovery with hot air circulation, and the waste heat of dyeing wastewater is used as a heat source, which improves energy utilization efficiency and reduces energy consumption in the drying process. The dyeing wastewater is stored in the wastewater tank 4. During the waste heat utilization process, the thermal energy is converted into hot air through the heat exchange device and introduced into the drying box 2 through the fan box 9 and the air intake box 8. The driving motor 7 drives the fan blades to rotate, so that the hot air forms a circulating airflow in the drying box 2, and the wind direction is adjusted by the guiding component to achieve multi-angle drying of the cheese yarn and improve the drying uniformity. The overhead plate 19 on the conveying frame 3 is in direct contact with the cheese yarn and cooperates with the contact component to keep the cheese yarn evenly distributed, avoid stacking affecting the drying effect, ensure that the hot air fully contacts the yarn, improve the drying efficiency while reducing uneven drying, easy to install and maintain, and has good industrial application value.

[0025] As a preferred implementation in this embodiment, refer to the attached Figure 1-Figure 3 、 Figure 5The guide assembly includes a group of connecting rods 11 arranged on one side of the inner wall of the fan box 9, and a guide cylinder 10 is provided on the connecting rod 11. The guide cylinder 10 is a cone with a gradually decreasing opening; a first rotating rod 12 is rotatably provided on the other side of the inner wall of the fan box 9, and a group of driving blades 13 are provided on the first rotating rod 12. A group of limiting disks 14 are symmetrically provided on the first rotating rod 12, and a thread groove 15 is provided on the first rotating rod 12 between the limiting disks 14. The thread groove 15 is a reciprocating double-thread structure, and a rotating ring 16 is threadedly sleeved on the thread groove 15 between the two limiting disks 14. A driving rod 17 is provided at one end of the rotating ring 16, and the driving rod 17 is located in the middle position of the guide cylinder 10. A contact head 18 is provided at one end of the driving rod 17, and the contact head 18 can contact the inner wall of the guide cylinder 10; a rubber pad is provided on the inner wall of the guide cylinder 10 at the position where the contact head 18 contacts; The airflow drives the driving blade 13 to rotate, driving the first rotating rod 12 to rotate synchronously. A pair of limiting disks 14 are symmetrically installed on the first rotating rod 12, and a thread groove 15 is provided therebetween. The thread groove 15 is a reciprocating double-thread structure, which can drive the rotating ring 16 to move back and forth along the axial direction of the first rotating rod 12. One end of the rotating ring 16 is connected to the driving rod 17. The end of the driving rod 17 is provided with a contact head 18. The contact head 18 contacts the inner wall of the guide cylinder 10 and is provided with a rubber pad in the contact area to reduce friction. The guide cylinder 10 is tapered. shaped structure, the opening gradually decreases so as to guide the airflow to blow concentratedly onto the cheese yarn. As the fan operates, the rotation of the driving blade 13 causes the rotating ring 16 to move back and forth in the threaded groove 15, thereby driving the contact head 18 to push or adjust the angle of the guide cylinder 10, thereby realizing dynamic adjustment of the airflow direction and improving the uniform drying effect of the cheese yarn. It can realize dynamic adjustment of the hot air direction during the drying process, increase the contact area between the hot air and the cheese yarn, improve the uniformity of the cheese yarn drying, reduce energy consumption, improve the overall drying efficiency, and enhance the drying effect.

[0026] As a preferred implementation in this embodiment, refer to the attached Figure 4 、 Figure 6 and Figure 7 The contact assembly includes a second rotating rod 20 rotatably arranged on the inner wall of the conveying frame 3, a first contact block 21 is arranged at the center of the second rotating rod 20, and second contact blocks 22 are arranged at both ends of the second rotating rod 20, and the angle difference between the first contact block 21 and the second contact block 22 is thirty degrees; the first contact block 21 and the second contact block 22 are both eccentrically arranged semicircular, one end of the first contact block 21 and the second contact block 22 are in contact with the cheese yarn, and the surfaces of the first contact block 21 and the second contact block 22 are both rubber; When the cheese yarn moves on the conveyor frame 3 during the drying process, the first contact block 21 and the second contact block 22 in contact with the cheese yarn will drive the second rotating rod 20 to rotate synchronously. The first contact block 21 and the second contact block 22 will swing eccentrically with the rotation of the second rotating rod 20, applying a slight adjustment force to the cheese yarn to keep it reasonably distributed on the conveyor frame 3, avoiding mutual squeezing or overlapping that affects the drying effect; keeping the cheese yarn evenly arranged during the drying process, preventing stacking from affecting the hot air contact, and improving the drying uniformity. The rubber surface design not only increases the stable support for the cheese yarn, but also effectively reduces the damage to the cheese yarn caused by friction. At the same time, the component has a simple structure and can be adaptively adjusted with the wind force or the movement of the conveyor frame 3, which improves the reliability and adaptability of the device and helps to improve the overall drying efficiency.

[0027] As a preferred implementation in this embodiment, refer to the attached Figure 4 , a group of guide plates 23 are symmetrically provided at the bottom of the conveyor frame 3, and the guide plates 23 are all plates inclined to one side; When residual water droplets fall from the cheese yarn during the drying process, the inclined structure of the guide plate 23 can make the water droplets flow to one side along the plate surface, thereby preventing the water droplets from falling directly into the fan box 9 at the bottom, preventing the hot air flow from being blocked or the blowing effect from being affected by accumulated water, thereby improving the working efficiency and drying effect of the equipment. At the same time, the inclined design can also guide the water droplets to gather in the designated drainage area, reduce the retention of water vapor inside the drying box 2, help maintain the stability of the drying environment, improve the drainage efficiency of the device, and maintain the stable operation of the drying system; water droplet guidance can be achieved without additional power, which reduces maintenance costs and improves the reliability and service life of the equipment.

[0028] As a preferred implementation in this embodiment, refer to the attached Figure 1-Figure 3 、 Figure 8 , both ends of the waste water tank 4 are provided with connection ports 5, one end of which is connected to a heat exchange pipe 24, which is arranged on the inner wall of the support frame 1 and located above the mounting plate 6 at the bottom of the conveying frame 3. The heat exchange pipe 24 is connected to a heat exchange plate 25, and the other end of the heat exchange pipe 24 is connected to a water outlet; the upper part of the heat exchange pipe 24 is connected to multiple groups of heat exchange risers 26, which are closer to the cheese yarn; The waste heat of the dyeing wastewater is used to preheat the air in the drying box 2, thereby improving the thermal energy utilization rate and reducing the energy consumption of the drying process. The combination of the heat exchange tube 24 and the heat exchange plate 25 increases the heat exchange area, making heat transfer more efficient while reducing heat loss. The arrangement of the heat exchange riser 26 close to the cheese yarn enables the cheese yarn to directly absorb heat energy, improve the drying effect, and reduce dependence on additional hot air supply.

[0029] A cheese dyeing wastewater waste heat utilization process, applied to any of the cheese dyeing wastewater waste heat utilization devices mentioned above, comprises the following steps: S1: Dyeing wastewater collection and heat exchange. After dyeing, the high-temperature wastewater is discharged into the wastewater tank 4 and enters the heat exchange tube 24 through the connection port 5. The wastewater flows in the heat exchange tube 24 and passes through the heat exchange fins 25 to improve the heat transfer efficiency, transferring the heat to the drying system. The cooled wastewater after heat exchange is discharged from the outlet, completing the waste heat recovery process. S2: Waste heat transfer and hot air circulation. The heat exchange riser 26 arranged above the heat exchange tube 24 is closer to the cheese yarn, and preheats the cheese yarn through radiation heat exchange. At the same time, the drive motor 7 drives the blades in the fan box 9 to rotate, so that hot air circulation is formed inside the drying box 2, further improving the drying efficiency. The guide cylinder 10 in the guide assembly optimizes the wind direction, and the driving blade 13 on the first rotating rod 12 adjusts the airflow angle to achieve multi-angle drying of the cheese yarn. S3: The cheese is stably and evenly dried. The overhead plate 19 on the conveyor frame 3 supports the cheese to avoid hot air blind spots. The second rotating rod 20 in the contact assembly drives the first contact block 21 and the second contact block 22 to rotate eccentrically, so that the cheese is evenly distributed during the drying process and prevents stacking that affects the drying effect. S4: Hot air is discharged and waste heat is circulated. The fully dried cheese yarn is gradually transported out of the drying box 2 to complete the drying process. The discharged hot air can be partially recovered or discharged to the exhaust gas treatment system to reduce heat energy waste and improve overall energy utilization.

[0030] This process achieves an efficient and energy-saving cheese yarn drying process through the synergistic effect of waste heat recovery, air flow optimization, uniform drying and protective design. The heat exchange tube 24 and the heat exchange riser 26 are used to recover the waste heat of dyeing wastewater, improve thermal energy utilization, and reduce energy consumption. The fan box 9 cooperates with the guide component to achieve multi-angle coverage of hot air and enhance drying uniformity. The contact component and the guide plate 23 optimize the arrangement of the cheese yarn to prevent stacking from affecting the air flow, and at the same time prevent water droplets from entering the bottom blower, thereby ensuring the stability of the hot air circulation.

[0031] While embodiments of the present invention have been shown and described, it will be appreciated by those skilled in the art that various changes, modifications, substitutions, and variations may be made to these embodiments without departing from the principles and spirit of the invention, and that the scope of the invention is defined by the appended claims and their equivalents.

Claims

1. A device for utilizing waste heat from cheese dyeing wastewater, comprising a support frame (1), characterized in that: A drying box (2) is provided on the top of the support frame (1), a waste water tank (4) is provided on one side of the support frame (1), and the waste water tank (4) is used to store dyeing waste water, a conveying frame (3) is provided on the support frame (1), and a plurality of overhead plates (19) are provided on the conveying frame (3), and the overhead plates (19) are used to contact the dyed cheese yarn, the top of the drying box (2) and the bottom of the conveying frame (3) are both provided with mounting plates (6), and a group of driving motors (7) are provided on the mounting plates (6), an air intake box (8) is provided on one side of the mounting plate (6), and a fan blade is provided at the output end of the driving motor (7), a fan box (9) is provided on one side of the mounting plate (6), and a guide assembly is provided on the fan box (9); a contact assembly is provided on the conveying frame (3); The guide assembly is used to ensure that the cheese yarn is contacted at multiple angles when being blown dry; and the contact assembly is used to prevent the cheese yarn from stacking when being blown dry.

2. The device for utilizing waste heat from cheese dyeing wastewater according to claim 1, characterized in that: The guide assembly comprises a group of connecting rods (11) arranged on one side of the inner wall of the fan box (9), a guide cylinder (10) being arranged on the connecting rods (11), and the guide cylinder (10) being in a tapered shape with a gradually decreasing opening.

3. The device for utilizing waste heat from cheese dyeing wastewater according to claim 2, characterized in that: The contact assembly comprises a second rotating rod (20) rotatably arranged on the inner wall of the conveying frame (3), a first contact block (21) is arranged at the center of the second rotating rod (20), and second contact blocks (22) are arranged at both ends of the second rotating rod (20), and the angle difference between the first contact block (21) and the second contact block (22) is thirty degrees.

4. The device for utilizing waste heat from cheese dyeing wastewater according to claim 3, characterized in that: A first rotating rod (12) is rotatably provided on the other side of the inner wall of the fan box (9), a group of driving blades (13) is provided on the first rotating rod (12), a group of limiting disks (14) are symmetrically provided on the first rotating rod (12), a thread groove (15) is provided on the first rotating rod (12) between the limiting disks (14), the thread groove (15) is a reciprocating double thread structure, a rotating ring (16) is threadedly provided on the thread groove (15) between the two limiting disks (14), a driving rod (17) is provided at one end of the rotating ring (16), the driving rod (17) is located in the middle position of the guide cylinder (10), and a contact head (18) is provided at one end of the driving rod (17), and the contact head (18) can contact the inner wall of the guide cylinder (10).

5. The device for utilizing waste heat from cheese dyeing wastewater according to claim 4, characterized in that: A rubber pad is provided on the inner wall of the guide cylinder (10) at a position in contact with the contact head (18).

6. The device for utilizing waste heat from cheese dyeing wastewater according to claim 3, characterized in that: The first contact block (21) and the second contact block (22) are both eccentrically arranged semicircular, one end of the first contact block (21) and the second contact block (22) are in contact with the cheese yarn, and the surfaces of the first contact block (21) and the second contact block (22) are both made of rubber.

7. The device for utilizing waste heat from cheese dyeing wastewater according to claim 1, characterized in that: A group of guide plates (23) are symmetrically arranged at the bottom of the conveying frame (3), and the guide plates (23) are all plates inclined to one side.

8. The device for utilizing waste heat from cheese dyeing wastewater according to claim 1, characterized in that: Both ends of the waste water tank (4) are provided with connection ports (5), wherein the connection port (5) at one end is connected to a heat exchange pipe (24), the heat exchange pipe (24) is arranged on the inner wall of the support frame (1) and is located above the mounting plate (6) at the bottom of the conveying frame (3), the heat exchange pipe (24) is connected to a heat exchange plate (25), and the other end of the heat exchange pipe (24) is connected to a water outlet.

9. The device for utilizing waste heat from cheese dyeing wastewater according to claim 8, characterized in that: The heat exchange tube (24) is connected to a plurality of groups of heat exchange risers (26) above, and the heat exchange risers (26) are closer to the cheese yarn.

10. A cheese dyeing wastewater waste heat utilization process, applied to a cheese dyeing wastewater waste heat utilization device according to any one of claims 1 to 9, characterized in that: The following steps are involved: S1: Dyeing wastewater collection and heat exchange. After dyeing, the high-temperature wastewater is discharged into the wastewater tank (4) and enters the heat exchange tube (24) through the connection port (5). The wastewater flows in the heat exchange tube (24) and improves the heat transfer efficiency through the heat exchange plate (25), and transfers the heat to the drying system. The cooled wastewater after heat exchange is discharged from the outlet, completing the waste heat recovery process; S2: waste heat transfer and hot air circulation, the heat exchange riser (26) arranged above the heat exchange tube (24) is closer to the cheese yarn, and the cheese yarn is preheated by radiation heat exchange. At the same time, the drive motor (7) drives the fan blades in the fan box (9) to rotate, so that hot air circulation is formed inside the drying box (2), further improving the drying efficiency. The guide cylinder (10) in the guide assembly optimizes the wind direction, and the driving blade (13) on the first rotating rod (12) adjusts the air flow angle to achieve multi-angle drying of the cheese yarn; S3: The cheese yarn is stably and evenly dried. The overhead plate (19) on the conveyor frame (3) supports the cheese yarn to avoid a hot air blind spot. The second rotating rod (20) in the contact assembly drives the first contact block (21) and the second contact block (22) to rotate eccentrically, so that the cheese yarn is evenly distributed during the drying process. S4: The hot air is discharged and the waste heat is circulated, and the fully dried cheese yarn is gradually transported out of the drying box (2), completing the drying process. The discharged hot air can be partially recovered or discharged to the exhaust gas treatment system.

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