A printing and dyeing sludge rapid drying device and method

Abstract

The present application belongs to the technical field of printing and dyeing sludge treatment, especially to a printing and dyeing sludge rapid drying device and method. In view of the poor drying effect of the existing printing and dyeing sludge rapid drying device on the printing and dyeing sludge, the following scheme is proposed, which comprises a box body, the upper side of the box body is fixedly connected with a top cover, and the outside of the box body is fixedly connected with a pretreatment tank, a plurality of equidistantly distributed filter holes are formed in the pretreatment tank. The printing and dyeing sludge rapid drying device and method can make the device use low-temperature high-speed wind, medium-temperature medium-speed wind and high-temperature slow wind to dry the sludge on the mesh drying disc, thereby effectively improving the drying effect and making the sludge gradually dehydrated, avoiding the influence of sludge caking caused by high temperature on the dehydration effect, and avoiding the decomposition of harmful components in the sludge caused by high temperature, thereby avoiding the environmental air pollution.

Description

Technical Field

[0001] This invention relates to the field of dyeing and printing sludge treatment technology, and in particular to a rapid drying device and method for dyeing and printing sludge. Background Technology

[0002] Fabric dyeing and printing processes generate a lot of waste, including dyeing sludge. Dyeing sludge has been listed as a strictly controlled substance in some parts of my country. Dyeing sludge has a moisture content of 75-90%, which not only takes up space but also easily pollutes the environment.

[0003] In order to dry the sludge quickly, existing rapid drying devices for dyeing and printing sludge often use high temperatures to bake the sludge in a short period of time. This not only causes the sludge to dry and form a crust on the outside quickly, affecting the drying efficiency inside the sludge, but also causes the toxic and harmful components inside the sludge to decompose and volatilize into the air, causing air pollution. Summary of the Invention

[0004] This invention discloses a rapid drying device and method for dyeing and printing sludge, aiming to solve the technical problem in the background art that the existing rapid drying devices for dyeing and printing sludge have poor drying effect on dyeing and printing sludge.

[0005] The present invention proposes a rapid drying device for dyeing and printing sludge, comprising:

[0006] The box body has a top cover fixedly connected to its upper side, and a pretreatment tank fixedly connected to the outside of the box body. The pretreatment tank has multiple equidistantly distributed filter holes.

[0007] Three mesh drying trays are located in the box and are distributed at equal intervals vertically.

[0008] The conveying pipe is installed on the pretreatment tank. One end of the conveying pipe is located above the uppermost mesh drying tray in the box, and a spiral rod is installed inside the conveying pipe. A power motor is fixedly connected to the outside of the pretreatment tank. The output end of the power motor passes through the pretreatment tank and is connected to one end of the spiral rod through a coupling.

[0009] A grading drying module is located on the box body. The grading drying module is used to perform grading drying treatment on the sludge carried on the mesh drying tray in the box body using different temperatures and different wind velocities.

[0010] Waste heat recovery module, located outside the housing, is used to reuse the waste heat generated during the sludge drying process.

[0011] In a preferred embodiment, the grading and drying module includes:

[0012] Shaft 1 has a circular opening on the top cover, and the inner wall of the circular opening is movably connected to the outside of shaft 1. Shaft 2 and shaft 3 are arranged below shaft 1. Two differentials are arranged between shaft 1, shaft 2 and shaft 3. Motor 1 is fixedly connected to the upper side of the top cover. The output end of motor 1 is connected to the upper side of shaft 1 through a coupling. The differentials are used to change the rotational speed between shaft 1, shaft 2 and shaft 3.

[0013] The discharge pipe is fixedly connected to the inner wall of the box. A notch is opened on the side of the box near the discharge pipe, and a water-guiding block is fixedly connected in the notch. The water-guiding block is fixedly connected to the side opposite to the inner wall of the discharge pipe. Each of the three mesh drying trays has a round hole, and the inner wall of the round hole is fixedly connected to the outside of shaft one, shaft two and shaft three respectively. The discharge pipe has an orifice, and the inner wall of the orifice is fixedly connected to the outside of the conveying pipe.

[0014] In a preferred embodiment, the grading and drying module further includes:

[0015] Three guide plates are provided, each with a cut hole. The inner walls of two of the cut holes are fixedly connected to the outside of shaft one, and the inner wall of the other cut hole is fixedly connected to the outside of shaft two. The three guide plates are all located above the mesh drying tray on the same side. The three mesh drying trays are all provided with discharge ports, and the three discharge ports are located on different planes.

[0016] Three inclined drainage plates are provided, and the exterior of the three inclined drainage plates are fixedly connected to the inner wall of the box. The bottom of the two uppermost inclined drainage plates are fixedly connected to the upper side of the two lowermost guide plates, and the discharge pipe has three equidistant collection ports, all of which are located on the same plane as the inclined drainage plates on the same side.

[0017] In a preferred embodiment, the grading and drying module further includes:

[0018] Two equally spaced closed plates, two guide plates at the bottom and three inclined drainage plates are provided with feeding troughs. The outside of the two closed plates are slidably connected to the inner walls of the two uppermost feeding troughs. The bottom of each of the three guide plates is fixedly connected to a hydraulic rod, and the output end of each hydraulic rod is fixedly connected to a scraper. The bottom of each scraper is slidably connected to the bottom inner wall of the mesh drying tray on the same side.

[0019] Two winding rollers are fixedly connected to the bottom of the two guide plates on the same side as the sealing plate. The inner walls of the two guide plates are movably connected to the outside of the two winding rollers. Motor 2 is fixedly connected to the outside of the two guide plates. The output end of motor 2 is connected to the outside of the winding roller on the same side through a coupling. A wire guide frame is fixedly connected to the bottom of the guide plate on the same side as the sealing plate. The wire guide frame is located on the same plane as the winding roller.

[0020] In a preferred embodiment, the grading and drying module further includes:

[0021] Two steel wire ropes are slidably connected to the outside of two conductor frames respectively. One end of each steel wire rope is fixedly connected to the bottom of the closing plate on the same side, and the other end is fixedly connected to the outside of the winding roller on the same side.

[0022] Two torsion springs are fixedly connected to the bottom of the two closed plates, and torsion springs are fixedly connected to the protrusions. The ends of the torsion springs away from the protrusions are fixedly connected to the bottom of the guide plate on the same side. An opening is provided on the outside of the box, and a discharge chute is fixedly connected inside the opening. The discharge chute is located below the closed plate.

[0023] In a preferred embodiment, the grading and drying module further includes:

[0024] The three mounting frames have three equally spaced slots on the side of the housing away from the pretreatment tank. The inner walls of the slots are fixedly connected to the outside of the three mounting frames, and the inner walls of the mounting frames are fixedly connected to the fixing plates, each with three equally spaced fans.

[0025] Three heating wires, each of which is mounted in one of three mounting frames.

[0026] In a preferred embodiment, the waste heat recovery module includes:

[0027] A solar collector box, which is fixedly connected to the side of the box body opposite to the solar collector box;

[0028] A heat exchange box is located between a heat collection box and a pretreatment tank. A support is fixedly connected to the outside of the heat exchange box. The support is slidably connected to the side opposite to the box body. Three equally spaced narrow slots are opened at the bottom of the heat exchange box. A heat distribution plate is fixedly connected to each of the narrow slots. The end of the heat distribution plate away from the heat exchange box is located inside the heat collection box.

[0029] Two serpentine tubes are located in the pretreatment tank and the heat exchange box, respectively.

[0030] In a preferred embodiment, the waste heat recovery module further includes:

[0031] Three heat-conducting plates are T-shaped, with both ends located in the discharge pipe and the other end passing through the box and the heat collection box and located in the heat collection box. The bottom of the heat collection box is fixedly connected to a motor three, and the output end of the motor three passes through the bottom of the heat collection box and is connected to a stirring paddle through a coupling.

[0032] Two delivery hoses are located on the side of the heat exchange box away from the box body. Two serpentine tubes are fixedly connected at one end on the same side to both ends of one of the delivery hoses. A pump is fixedly connected to the outside of the heat exchange box. The output end of the pump is connected to one of the delivery hoses through a conduit.

[0033] In a preferred embodiment, the waste heat recovery module further includes:

[0034] Two symmetrical long rods, one end of each long rod is fixedly connected to the outside of the box, and the other end of each long rod is movably connected to a hydraulic rod.

[0035] Two push-pull rods, one end of which is movably connected to the outside of the housing, and the other end of which is movably connected to the bottom of the bracket. The output ends of the two hydraulic rods are respectively movably connected to the outside of the two push-pull rods.

[0036] A method for rapidly drying dyeing and printing sludge, using a rapid drying device for dyeing and printing sludge as described above, includes the following steps:

[0037] Step 1: Put the dyeing sludge into the pretreatment tank. After filtering some of the water in the pretreatment tank, start the power motor to make the screw conveyor transport the sludge into the box.

[0038] Step 2: Use the grading drying module to grade and dry the sludge, so that the sludge on the mesh drying tray can be gradually dehydrated.

[0039] Step 3: During the drying process, the waste heat recovery module collects the waste heat generated during drying and transports it into the pretreatment tank to preheat the sludge that will be transported into the box.

[0040] As can be seen from the above, the rapid drying device for printing and dyeing sludge provided by the present invention can use low-temperature high-speed air, medium-temperature medium-speed air and high-temperature slow air to bake the sludge on the mesh drying tray, thereby effectively improving the drying effect and allowing the sludge to be gradually dehydrated. This avoids the impact of sludge clumping caused by excessively high temperature on the dehydration effect, and also avoids the decomposition of harmful components in the sludge by high temperature, which would cause environmental air pollution. Attached Figure Description

[0041] Figure 1 This is a schematic diagram of the overall structure of a rapid drying device for dyeing and printing sludge proposed in this invention.

[0042] Figure 2 This is a cross-sectional structural schematic diagram of a rapid drying device for dyeing and printing sludge proposed in this invention.

[0043] Figure 3 This is a schematic diagram of the graded drying module structure of a rapid drying device for dyeing and printing sludge proposed in this invention.

[0044] Figure 4 This is a schematic diagram of the closed plate structure of a rapid drying device for dyeing and printing sludge proposed in this invention.

[0045] Figure 5 This is a schematic diagram of the pretreatment tank structure of a rapid drying device for dyeing and printing sludge proposed in this invention.

[0046] Figure 6 This is a schematic diagram of the installation frame structure of a rapid drying device for dyeing and printing sludge proposed in this invention;

[0047] Figure 7 This is a schematic diagram of the waste heat recovery module structure of a rapid drying device for dyeing and printing sludge proposed in this invention.

[0048] Figure 8 This is a schematic diagram of the heat collection box structure of a rapid drying device for dyeing and printing sludge proposed in this invention.

[0049] In the diagram: 1. Box body; 2. Top cover; 3. Pretreatment tank; 4. Filter hole; 5. Mesh drying tray; 6. Grading and drying module; 601. Shaft 1; 602. Motor 1; 603. Shaft 2; 604. Shaft 3; 605. Differential; 606. Discharge port; 607. Guide plate; 608. Sloping drainage plate; 609. Discharge chute; 610. Discharge pipe; 611. Collection port; 612. Feed chute; 613. Sealing plate; 614. Torsion spring; 615. Winding roller; 616. Motor 2; 617. Wire guide; 618. 619. Steel wire rope; 620. Scraper; 621. Hydraulic rod one; 622. Water guide block; 623. Mounting frame; 624. Fan; 625. Heating wire; 7. Waste heat recovery module; 701. Heat collection box; 702. Heat conduction plate; 703. Motor three; 704. Agitator; 705. Heat spreader plate; 706. Heat exchange box; 707. Bracket; 708. Serpentine tube; 709. Conveying hose; 710. Pump; 711. Long rod; 712. Hydraulic rod two; 713. Push-pull rod; 8. Conveying pipe; 9. Screw rod; 10. Power motor. Detailed Implementation

[0050] The technical solutions of the present invention will be clearly and completely described below with reference to the accompanying drawings of the embodiments of the present invention. Obviously, the described embodiments are only some embodiments of the present invention, and not all embodiments.

[0051] The rapid drying device for printing and dyeing sludge disclosed in this invention is mainly applied to scenarios where existing rapid drying devices for printing and dyeing sludge have poor drying effects.

[0052] Reference Figures 1-8 A rapid drying device for dyeing and printing sludge, comprising:

[0053] Box 1, with a top cover 2 bolted to the upper side of the box 1, and a pretreatment tank 3 bolted to the outside of the box 1, with multiple equally spaced filter holes 4 on the pretreatment tank 3.

[0054] Three mesh drying trays 5 are located in the box 1 and are distributed at equal intervals.

[0055] The conveying pipe 8 is installed on the pretreatment tank 3. One end of the conveying pipe 8 is located above the mesh drying tray 5 at the top of the box 1. A spiral rod 9 is installed inside the conveying pipe 8. A power motor 10 is bolted to the outside of the pretreatment tank 3. The output end of the power motor 10 passes through the pretreatment tank 3 and is connected to one end of the spiral rod 9 through a coupling.

[0056] The grading and drying module 6 is located on the box 1. The grading and drying module 6 is used to perform grading and drying treatment on the sludge carried on the mesh drying tray 5 in the box 1 using different temperatures and different wind speeds.

[0057] Waste heat recovery module 7 is located outside the housing 1 and is used to reuse the waste heat generated during the sludge drying process in the housing 1.

[0058] The device utilizes a graded drying module 6 to bake the sludge on the mesh drying tray 5 using low-temperature high-speed air, medium-temperature medium-speed air, and high-temperature slow-speed air. This effectively improves the drying effect and allows the sludge to be dehydrated gradually. It avoids the impact of excessively high temperatures on sludge clumping, which affects the dehydration effect, and also prevents harmful components in the sludge from decomposing due to high temperatures, thus avoiding environmental air pollution.

[0059] Reference Figure 3 , Figure 4 , Figure 5 and Figure 6 In a preferred embodiment, the grading and drying module 6 includes:

[0060] A shaft 601 has a circular opening on the top cover 2. The inner wall of the circular opening is rotatably connected to the outside of the shaft 601 via a bearing. Shafts 603 and 604 are located below shaft 601. Two differentials 605 are installed between shafts 601, 603, and 604. A motor 602 is bolted to the upper side of the top cover 2. The output end of the motor 602 is connected to the upper side of shaft 601 via a coupling. The differentials 605 are used to change the rotational speeds of shafts 601, 603, and 604.

[0061] The discharge pipe 610 is bolted to the inner wall of the housing 1. A notch is provided on the side of the housing 1 near the discharge pipe 610, and a water guide block 621 is bolted into the notch. The water guide block 621 is bolted to the side opposite to the inner wall of the discharge pipe 610. The three mesh drying trays 5 are each provided with a round hole, and the inner wall of the round hole is bolted to the outside of the first shaft 601, the second shaft 603, and the third shaft 604, respectively. The discharge pipe 610 is provided with an orifice, and the inner wall of the orifice is bolted to the outside of the conveying pipe 8.

[0062] In this invention, the grading and drying module 6 further includes:

[0063] Three guide plates 607 are provided, each with a cut hole. The inner walls of two of the cut holes are bolted to the outside of shaft 601, and the inner wall of the other cut hole is bolted to the outside of shaft 603. The three guide plates 607 are all located above the mesh drying tray 5 on the same side. Each of the three mesh drying trays 5 has a discharge port 606, and the three discharge ports 606 are located on different planes.

[0064] Three inclined drainage plates 608 are bolted to the inner wall of the box 1. The bottom of the two uppermost inclined drainage plates 608 are bolted to the upper side of the two lowermost guide plates 607. The discharge pipe 610 has three equidistant collection ports 611, and the three collection ports 611 are all located on the same plane as the inclined drainage plates 608 on the same side.

[0065] In this invention, the grading and drying module 6 further includes:

[0066] Two equally spaced closed plates 613, two guide plates 607 located below and three inclined drainage plates 608 are all provided with feeding troughs 612. The outside of the two closed plates 613 are slidably connected to the inner walls of the two uppermost feeding troughs 612 respectively. The bottom of the three guide plates 607 are all bolted to hydraulic rods 620. The output end of the hydraulic rods 620 is bolted to scrapers 619. The bottom of the scrapers 619 is slidably connected to the bottom inner wall of the mesh drying tray 5 on the same side.

[0067] The bottom of the two winding rollers 615 and the two guide plates 607 on the same side as the sealing plate 613 are bolted to the bosses. The inner walls of the two bosses are rotatably connected to the outside of the two winding rollers 615 through bearings. The outside of the bosses is bolted to the motor 616. The output end of the motor 616 is connected to the outside of the winding rollers 615 on the same side through a coupling. The bottom of the guide plates 607 on the same side as the sealing plate 613 is bolted to the wire guide frame 617. The wire guide frame 617 is located on the same plane as the winding rollers 615.

[0068] In this invention, the grading and drying module 6 further includes:

[0069] Two wire ropes 618 are slidably connected to the outside of two conductor frames 617 respectively. One end of the wire rope 618 is bolted to the bottom of the closed plate 613 on the same side, and the other end is bolted to the outside of the winding roller 615 on the same side.

[0070] The bottom of the two torsion springs 614 and the two closed plates 613 are all bolted to protrusions, and torsion springs 614 are bolted to the protrusions. The end of the torsion spring 614 away from the protrusion is bolted to the bottom of the guide plate 607 on the same side. The outside of the box 1 is opened, and the discharge chute 609 is bolted to the opening. The discharge chute 609 is located below the closed plate 613.

[0071] In this invention, the grading and drying module 6 further includes:

[0072] Three mounting frames 622, three equally spaced slots are provided on the side of the box body 1 away from the pretreatment tank 3, the inner walls of the slots are respectively connected to the outside of the three mounting frames 622 by bolts, and the inner walls of the mounting frames 622 are all connected to the fixing plates by bolts, and three equally spaced fans 623 are provided on the fixing plates.

[0073] Three heating wires 624 are respectively installed in three mounting frames 622.

[0074] In specific application scenarios, the grading drying module 6 is mainly suitable for the grading drying stage in the grading drying process. That is, the grading drying module 6 uses the mounting frame 622 and the collection port 611 located at different heights to enable the hot air generated by the heating wire 624 and the fan 623 to effectively cover the sludge on the mesh drying tray 5, thereby improving the heating effect on the sludge and allowing the moisture to separate from the sludge more quickly. The guide plate 607 and the inclined drainage plate 608 can completely isolate the three mesh drying trays 5, thereby avoiding the mutual influence between the temperature and moisture of the mesh drying trays 5, and ensuring the normal and efficient operation of the drying process.

[0075] Reference Figure 7 and Figure 8 In a preferred embodiment, the waste heat recovery module 7 includes:

[0076] The solar collector 701 is connected to the side of the housing 1 opposite to the solar collector 701 by bolts.

[0077] The heat exchange box 706 is located between the heat collection box 701 and the pretreatment tank 3. The heat exchange box 706 is externally connected to the support 707 by bolts. The support 707 is slidably connected to the side opposite to the box body 1. The bottom of the heat exchange box 706 has three equally spaced narrow slots. Each narrow slot is connected to a heat distribution plate 705 by bolts. The end of the heat distribution plate 705 away from the heat exchange box 706 is located inside the heat collection box 701.

[0078] Two serpentine tubes 708 are located in the pretreatment tank 3 and the heat exchange box 706, respectively.

[0079] In this invention, the waste heat recovery module 7 further includes:

[0080] Three heat-conducting plates 702 are T-shaped, with both ends located in the discharge pipe 610, and the other end passing through the box 1 and the heat collection box 701 and located in the heat collection box 701. The bottom of the heat collection box 701 is connected to a motor 703 by bolts, and the output end of the motor 703 passes through the bottom of the heat collection box 701 and is connected to a stirring paddle 704 by a coupling.

[0081] Two delivery hoses 709 are located on the side of the heat exchange box 706 away from the box body 1. Two serpentine tubes 708 are connected at one end on the same side to both ends of one of the delivery hoses 709 by bolts. A pump 710 is bolted to the outside of the heat exchange box 706. The output end of the pump 710 is connected to one of the delivery hoses 709 by a conduit.

[0082] In this invention, the waste heat recovery module 7 further includes:

[0083] Two symmetrical long rods 711, one end of each long rod 711 is bolted to the outside of the housing 1, and the other end of each long rod 711 is rotatably connected to a hydraulic rod 712 via a bearing;

[0084] Two push-pull rods 713, one end of each push-pull rod 713 is rotatably connected to the outside of the housing 1 via a bearing, and the other end of each push-pull rod 713 is rotatably connected to the bottom of the bracket 707 via a bearing. The output ends of the two hydraulic rods 712 are rotatably connected to the outside of the two push-pull rods 713 via bearings.

[0085] In specific application scenarios, the waste heat recovery module 7 is mainly suitable for the waste heat recovery stage in the waste heat recovery process. That is, the waste heat recovery module 7 can control the depth of the heat spreader 705 immersed in the heat collection box 701 by using the hydraulic rod 712 and the push-pull rod 713, thereby controlling the temperature of the sludge transferred to the pretreatment tank 3 by the serpentine tube 708. While ensuring the preheating effect of the sludge, it avoids the sludge from clumping on the surface of the serpentine tube 708, ensuring the heat transfer effect and saving energy.

[0086] A method for rapidly drying dyeing and printing sludge, using a rapid drying device for dyeing and printing sludge as described above, includes the following steps:

[0087] Step 1: Put the dyeing sludge into the pretreatment tank 3. After filtering some of the water in the pretreatment tank 3, start the power motor 10 so that the screw rod 9 can transport the sludge into the box 1.

[0088] Step 2: Use the grading drying module 6 to grade and dry the sludge, allowing the sludge on the mesh drying trays 5 to be gradually dehydrated. (Hydraulic rod 620 drives scraper 619 to descend, thus spreading the sludge evenly on the mesh drying trays 5. Scraper 619 is then retracted. Fan 623 and heating wire 624 are started, sequentially set from top to bottom to high speed, medium speed, and slow speed, and low temperature, medium temperature, and high temperature. Motor 602 is started, driving shaft 601 to rotate, which in turn rotates the three mesh drying trays 5. Under the influence of differential 605, the speeds of shafts 601, 603, and 604 gradually decrease, reducing the water content of the sludge on the mesh drying trays 5.) Some of the moisture falls through the mesh filter on the mesh drying tray 5 onto the inclined drainage plate 608, enters the discharge pipe 610 through the collection port 611, and is finally discharged through the water guide block 621. The high-temperature water vapor is discharged upward through the discharge pipe 610. The hydraulic rod 620 is activated again, which drives the scraper 619 to descend to fit against the bottom inner wall of the mesh drying tray 5. The scraper 619 can scrape off the sludge and convey it downward from the discharge port 606. The motor 616 is activated to tighten the wire rope 618 and open the feeding chute 612 so that the sludge can fall onto the mesh drying tray 5 below. The dried sludge is conveyed from the outside of the conveyor belt box 1 through the discharge chute 609.

[0089] Step 3: During the drying process, the waste heat recovery module 7 collects the waste heat generated during drying and transports it into the pretreatment tank 3 to preheat the sludge in the pretreatment tank 3 that will be transported into the box 1. (As high-temperature water vapor is discharged outward through the discharge pipe 610, the heat-conducting plate 702 absorbs the heat and transports it to the heat collection box 701. The heat-conducting oil in the heat collection box 701 absorbs and stores the heat. The motor 703 drives the stirring paddle 704 to rotate, so that the heat-conducting oil is heated evenly. The output end of the hydraulic rod 712 extends or shortens, so that the heat-spreading plate 705 rises or falls in the heat collection box 701, changing the depth of the heat-spreading plate 705 immersed in the heat-conducting oil. The heat-spreading plate 705 transfers heat to the heat-conducting oil in the heat exchange box 706. The pump 710 makes the heat transfer medium in the delivery hose 709 circulate between the two serpentine pipes 708, thereby transferring the heat of the heat-conducting oil in the heat exchange box 706 to the sludge in the pretreatment tank 3.)

[0090] The above description is only a preferred embodiment of the present invention, but 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 inventive concept of the present invention, should be covered within the scope of protection of the present invention.

Claims

1. A rapid drying device for dyeing and printing sludge, characterized in that, include: The box body has a top cover fixedly connected to its upper side, and a pretreatment tank fixedly connected to the outside of the box body. The pretreatment tank has multiple equidistantly distributed filter holes. Three mesh drying trays are located in the box and are distributed at equal intervals vertically. The conveying pipe is installed on the pretreatment tank. One end of the conveying pipe is located above the uppermost mesh drying tray in the box, and a spiral rod is installed inside the conveying pipe. A power motor is fixedly connected to the outside of the pretreatment tank. The output end of the power motor passes through the pretreatment tank and is connected to one end of the spiral rod through a coupling. A grading drying module is located on the box body. The grading drying module is used to perform grading drying treatment on the sludge carried on the mesh drying tray in the box body using different temperatures and different wind velocities. Waste heat recovery module, located outside the box, is used to reuse the waste heat generated during the sludge drying process. The waste heat recovery module includes: A solar collector box, which is fixedly connected to the side of the box body opposite to the solar collector box; A heat exchange box is located between a heat collection box and a pretreatment tank. A support is fixedly connected to the outside of the heat exchange box. The support is slidably connected to the side opposite to the box body. Three equally spaced narrow slots are opened at the bottom of the heat exchange box. A heat distribution plate is fixedly connected to each of the narrow slots. The end of the heat distribution plate away from the heat exchange box is located inside the heat collection box. Two serpentine tubes are located in the pretreatment tank and the heat exchange box, respectively. The waste heat recovery module also includes: Three heat-conducting plates are T-shaped, with both ends located in the discharge pipe and the other end passing through the box and the heat collection box and located in the heat collection box. The bottom of the heat collection box is fixedly connected to a motor three, and the output end of the motor three passes through the bottom of the heat collection box and is connected to a stirring paddle through a coupling. Two delivery hoses are located on the side of the heat exchange box away from the box body. Two serpentine tubes are fixedly connected at one end on the same side to both ends of one of the delivery hoses. A pump is fixedly connected to the outside of the heat exchange box. The output end of the pump is connected to one of the delivery hoses through a conduit. The waste heat recovery module also includes: Two symmetrical long rods, one end of each long rod is fixedly connected to the outside of the box, and the other end of each long rod is movably connected to a hydraulic rod. Two push-pull rods, one end of which is movably connected to the outside of the housing, and the other end of which is movably connected to the bottom of the bracket. The output ends of the two hydraulic rods are respectively movably connected to the outside of the two push-pull rods.

2. The rapid drying device for dyeing and printing sludge according to claim 1, characterized in that, The graded drying module includes: Shaft 1 has a circular opening on the top cover, and the inner wall of the circular opening is movably connected to the outside of shaft 1. Shaft 2 and shaft 3 are arranged below shaft 1. Two differentials are arranged between shaft 1, shaft 2 and shaft 3. Motor 1 is fixedly connected to the upper side of the top cover. The output end of motor 1 is connected to the upper side of shaft 1 through a coupling. The differentials are used to change the rotational speed between shaft 1, shaft 2 and shaft 3. The discharge pipe is fixedly connected to the inner wall of the box. A notch is opened on the side of the box near the discharge pipe, and a water-guiding block is fixedly connected in the notch. The water-guiding block is fixedly connected to the side opposite to the inner wall of the discharge pipe. Each of the three mesh drying trays has a round hole, and the inner wall of the round hole is fixedly connected to the outside of shaft one, shaft two and shaft three respectively. The discharge pipe has an orifice, and the inner wall of the orifice is fixedly connected to the outside of the conveying pipe.

3. The rapid drying device for dyeing and printing sludge according to claim 2, characterized in that, The graded drying module also includes: Three guide plates are provided, each with a cut hole. The inner walls of two of the cut holes are fixedly connected to the outside of shaft one, and the inner wall of the other cut hole is fixedly connected to the outside of shaft two. The three guide plates are all located above the mesh drying tray on the same side. The three mesh drying trays are all provided with discharge ports, and the three discharge ports are located on different planes. Three inclined drainage plates are provided, and the exterior of the three inclined drainage plates are fixedly connected to the inner wall of the box. The bottom of the two uppermost inclined drainage plates are fixedly connected to the upper side of the two lowermost guide plates, and the discharge pipe has three equidistant collection ports, all of which are located on the same plane as the inclined drainage plates on the same side.

4. The rapid drying device for dyeing and printing sludge according to claim 3, characterized in that, The graded drying module also includes: Two equally spaced closed plates, two guide plates at the bottom and three inclined drainage plates are provided with feeding troughs. The outside of the two closed plates are slidably connected to the inner walls of the two uppermost feeding troughs. The bottom of each of the three guide plates is fixedly connected to a hydraulic rod, and the output end of each hydraulic rod is fixedly connected to a scraper. The bottom of each scraper is slidably connected to the bottom inner wall of the mesh drying tray on the same side. Two winding rollers are fixedly connected to the bottom of the two guide plates on the same side as the sealing plate. The inner walls of the two guide plates are movably connected to the outside of the two winding rollers. Motor 2 is fixedly connected to the outside of the two guide plates. The output end of motor 2 is connected to the outside of the winding roller on the same side through a coupling. A wire guide frame is fixedly connected to the bottom of the guide plate on the same side as the sealing plate. The wire guide frame is located on the same plane as the winding roller.

5. A rapid drying device for dyeing and printing sludge according to claim 4, characterized in that, The graded drying module also includes: Two steel wire ropes are slidably connected to the outside of two conductor frames respectively. One end of each steel wire rope is fixedly connected to the bottom of the closing plate on the same side, and the other end is fixedly connected to the outside of the winding roller on the same side. Two torsion springs are fixedly connected to the bottom of the two closed plates, and torsion springs are fixedly connected to the protrusions. The ends of the torsion springs away from the protrusions are fixedly connected to the bottom of the guide plate on the same side. An opening is provided on the outside of the box, and a discharge chute is fixedly connected inside the opening. The discharge chute is located below the closed plate.

6. The rapid drying device for dyeing and printing sludge according to claim 5, characterized in that, The graded drying module also includes: The three mounting frames have three equally spaced slots on the side of the housing away from the pretreatment tank. The inner walls of the slots are fixedly connected to the outside of the three mounting frames, and the inner walls of the mounting frames are fixedly connected to the fixing plates, each with three equally spaced fans. Three heating wires, each of which is mounted in one of three mounting frames.

7. A method for rapidly drying dyeing and printing sludge, using a rapid drying device for dyeing and printing sludge as described in claim 6, characterized in that, Includes the following steps: Step 1: Put the dyeing sludge into the pretreatment tank. After filtering some of the water in the pretreatment tank, start the power motor to make the screw conveyor transport the sludge into the box. Step 2: Use the grading drying module to grade and dry the sludge, so that the sludge on the mesh drying tray can be gradually dehydrated; Step 3: During the drying process, the waste heat recovery module collects the waste heat generated during drying and transports it into the pretreatment tank to preheat the sludge that will be transported into the box.

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