Rapid drying device and method for printing and dyeing sludge

Abstract

The invention belongs to the technical field of printing and dyeing sludge treatment, particularly relates to a rapid drying device and method for printing and dyeing sludge, and aims at solving the problem that an existing rapid drying device for the printing and dyeing sludge is poor in drying effect on the printing and dyeing sludge. A pretreatment tank is fixedly connected to the exterior of the box body, and a plurality of filtering holes distributed at equal intervals are formed in the pretreatment tank. According to the rapid drying device and method for the printing and dyeing sludge, the device can bake the sludge on the mesh drying disc in a low-temperature and high-speed wind mode, a medium-temperature and medium-speed wind mode and a high-temperature and low-speed wind mode, so that the drying effect is effectively improved, and the sludge can be gradually dewatered; the influence of sludge caking caused by too high temperature on the dewatering effect is avoided, and the situation that harmful ingredients in the sludge are decomposed due to the influence of high temperature to cause environmental air pollution is also avoided.

Description

Technical Field

[0001] The present invention relates to the technical field of printing and dyeing sludge treatment, and in particular to a printing and dyeing sludge rapid drying device and method. Background Art

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

[0003] In order to quickly dry the sludge, the existing printing and dyeing sludge rapid drying equipment often uses high temperature to bake the sludge in a short time. This will not only cause the sludge to dry and crust on the outside quickly, affecting the drying efficiency of the sludge inside, but also cause the toxic and harmful components in the sludge to decompose and volatilize into the air due to heat, causing air pollution. Summary of the Invention

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

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

[0006] A box body, wherein a top cover is fixedly connected to the upper side of the box body, and a pretreatment tank is fixedly connected to the outside of the box body, and a plurality of equidistantly distributed filtering holes are opened on the pretreatment tank;

[0007] Three mesh drying trays, all of which are located in the box and are evenly spaced vertically;

[0008] A material delivery pipe is provided on the pretreatment tank, one end of the material delivery pipe is located above the uppermost mesh drying plate in the box body, and a spiral rod is provided in the material delivery pipe. A power motor is fixedly connected to the outside of the pretreatment tank, and 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 graded drying module is located on the box body and is used to perform graded drying treatment on the sludge carried on the mesh drying tray in the box body using different temperatures and different wind speeds;

[0010] The waste heat recovery module is located outside the box and is used to reuse the waste heat generated by the box during the sludge drying process.

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

[0012] Shaft 1, a circular opening is formed on the top cover, the inner wall of the circular opening is movably connected to the outside of shaft 1, shaft 2 and shaft 3 are provided below shaft 1, two differentials are provided between shaft 1, shaft 2 and shaft 3, and 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, and the differential is used to change the rotational speed between shaft 1, shaft 2 and shaft 3;

[0013] A discharge pipe, the outside of which is fixedly connected to the inner wall of the box body, a notch is provided on the side of the box body close to the discharge pipe, and a water diversion block is fixedly connected in the notch. The water diversion block is fixedly connected to the side opposite to the inner wall of the discharge pipe, and circular holes are provided on the three mesh drying plates, the inner walls of the circular holes are respectively fixedly connected to the outside of shaft rod one, shaft rod two and shaft rod three, and an orifice is provided on the discharge pipe, the inner wall of the orifice is fixedly connected to the outside of the feed pipe.

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

[0015] Three guide plates, each of which has a cutout hole, wherein the inner walls of two of the cutout holes are fixedly connected to the outer portion of the first shaft, and the inner wall of the other cutout hole is fixedly connected to the outer portion of the second shaft. The three guide plates are all located above the mesh drying tray on the same side, and the three mesh drying trays are all provided with a discharge port, and the positions of the three discharge ports are all located on different planes;

[0016] There are three inclined drainage plates, the exteriors of the three inclined drainage plates are fixedly connected to the inner wall of the box, the bottoms of the two uppermost inclined drainage plates are fixedly connected to the upper sides of the two lowermost guide plates, and three equally spaced collection ports are provided on the discharge pipe, and the three collection ports are all 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 comprises:

[0018] Two equally spaced closing plates, the two guide plates at the bottom and the three inclined drainage plates are all provided with material discharge troughs, the exteriors of the two closing plates are respectively slidably connected to the inner walls of the two uppermost material discharge troughs, the bottoms of the three guide plates are fixedly connected to hydraulic rod 1, the output ends of the hydraulic rod 1 are fixedly connected to scrapers, the bottoms of the scrapers are all slidably connected to the bottom inner wall of the mesh drying tray on the same side;

[0019] The two winding rollers have protrusions fixedly connected to the bottoms of the two guide plates on the same side of the closing plate. The inner walls of the two protrusions are movably connected to the outsides of the two winding rollers respectively. The outsides of the protrusions are fixedly connected to motor 2. The output ends of motor 2 are connected to the outsides of the winding rollers on the same side through couplings. The bottoms of the guide plates on the same side of the closing plate are fixedly connected to wire racks, and the wire racks are located in the same plane as the winding rollers.

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

[0021] Two steel wire ropes, each of which is slidably connected to the outside of the two conductor racks, one end of the 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, the bottoms of the two closing plates are fixedly connected with protrusions, the protrusions are fixedly connected with torsion springs, the ends of the torsion springs away from the protrusions are fixedly connected to the bottoms of the guide plates on the same side, an opening is provided on the outside of the box, a discharge trough is fixedly connected in the opening, and the discharge trough is located below the closing plate.

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

[0024] Three mounting frames, with three equally spaced slots on one side of the box away from the pretreatment tank. The inner walls of the slots are fixedly connected to the outside of the three mounting frames respectively, and the inner walls of the mounting frames are fixedly connected to a fixing plate, on which three equally spaced fans are fixed;

[0025] Three heating wires are respectively installed in three mounting frames.

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

[0027] A heat collecting box, the heat collecting box being fixedly connected to a side opposite to the box body;

[0028] The heat exchange box is located between the heat collection box and the pretreatment tank. A bracket is fixedly connected to the outside of the heat exchange box. The bracket is slidably connected to the side opposite to the box body. The bottom of the heat exchange box is provided with three equally spaced narrow slots. Each narrow slot is fixedly connected to a heat spreader. The end of the heat spreader away from the heat exchange box is located inside the heat collection box.

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

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

[0031] Three heat conducting plates, each of which is T-shaped, with both ends located in the discharge pipe and the other end passing through the box body and the heat collecting box and located in the heat collecting box, and a third motor is fixedly connected to the bottom of the heat collecting box, and the output end of the third motor passes through the bottom of the heat collecting box and is connected to a stirring paddle via a coupling;

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

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

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

[0035] Two push-pull rods, one end of the push-pull rods is movably connected to the outside of the box, and the other end is movably connected to the bottom of the bracket, and 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 printing and dyeing sludge, using the above-mentioned rapid drying device for printing and dyeing sludge, comprises the following steps:

[0037] Step 1: Put the printing and dyeing sludge into the pretreatment tank. After filtering a part of the water in the pretreatment tank, start the power motor to make the screw rod transport the sludge into the box;

[0038] Step 2: Use the graded drying module to grade the sludge so that the sludge on the mesh drying plate can be gradually dehydrated.

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

[0040] From the above, it can be seen that the printing and dyeing sludge rapid drying device provided by the present invention has the function of enabling the device to use low-temperature high-speed wind, medium-temperature medium-speed wind and high-temperature slow-speed wind to bake the sludge on the mesh drying plate, thereby effectively improving the drying effect and allowing the sludge to be gradually dehydrated, avoiding the influence of sludge agglomeration caused by excessively high temperature on the dehydration effect, and avoiding the decomposition of harmful components in the sludge by high temperature, causing environmental air pollution. BRIEF DESCRIPTION OF THE DRAWINGS

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

[0042] Figure 2 This is a schematic cross-sectional view of a rapid drying device for printing and dyeing sludge proposed by the present invention;

[0043] Figure 3 This is a structural schematic diagram of a graded drying module of a printing and dyeing sludge rapid drying device proposed by the present invention;

[0044] Figure 4 This is a schematic diagram of the closed plate structure of a printing and dyeing sludge rapid drying device proposed by the present invention;

[0045] Figure 5 This is a schematic diagram of the structure of a pretreatment tank of a printing and dyeing sludge rapid drying device proposed by the present invention;

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

[0047] Figure 7 This is a schematic structural diagram of a waste heat recovery module of a printing and dyeing sludge rapid drying device proposed by the present invention;

[0048] Figure 8 This is a schematic diagram of the heat collecting box structure of a printing and dyeing sludge rapid drying device proposed by the present invention.

[0049] Figure: 1. Box; 2. Top cover; 3. Pretreatment tank; 4. Filter hole; 5. Mesh drying plate; 6. Grading drying module; 601. Shaft 1; 602. Motor 1; 603. Shaft 2; 604. Shaft 3; 605. Differential; 606. Discharge port; 607. Guide plate; 608. Inclined drainage plate; 609. Discharge chute; 610. Discharge pipe; 611. Collection port; 612. Discharge chute; 613. Closing plate; 614. Torsion spring; 615. Winding roller; 616. Motor 2; 617. Wire rack; 618 , wire rope; 619, scraper; 620, hydraulic rod one; 621, water diversion block; 622, mounting frame; 623, fan; 624, heating wire; 7, waste heat recovery module; 701, heat collecting box; 702, heat conduction plate; 703, motor three; 704, stirring paddle; 705, heat spreader; 706, heat exchange box; 707, bracket; 708, serpentine pipe; 709, conveying hose; 710, pump; 711, long rod; 712, hydraulic rod two; 713, push-pull rod; 8, feed pipe; 9, screw rod; 10, power motor. DETAILED DESCRIPTION

[0050] The technical solutions in the embodiments of the present invention will be clearly and completely described below in conjunction with the drawings in the embodiments of the present invention. Obviously, the described embodiments are only part of the embodiments of the present invention, rather than all the embodiments.

[0051] The invention discloses a rapid drying device for printing and dyeing sludge, which is mainly used in scenarios where the existing rapid drying device for printing and dyeing sludge has a poor drying effect on the printing and dyeing sludge.

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

[0053] The box body 1 has a top cover 2 connected to the upper side of the box body 1 by bolts, and a pretreatment tank 3 is connected to the outside of the box body 1 by bolts, and the pretreatment tank 3 has a plurality of equally spaced filter holes 4;

[0054] Three mesh drying trays 5, all of which are located in the box 1 and are evenly spaced vertically;

[0055] The material delivery pipe 8 is arranged on the pretreatment tank 3, one end of the material delivery pipe 8 is located above the mesh drying plate 5 at the top in the box body 1, and a spiral rod 9 is provided in the material delivery pipe 8. The outside of the pretreatment tank 3 is connected to a power motor 10 by bolts. 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 by a coupling;

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

[0057] The waste heat recovery module 7 is located outside the box body 1 and is used to recycle the waste heat generated by the box body 1 during the sludge drying process.

[0058] The device utilizes the graded drying module 6 to enable the device to bake the sludge on the mesh drying plate 5 by means of low-temperature high-speed wind, medium-temperature medium-speed wind and high-temperature slow-speed wind, thereby effectively improving the drying effect and allowing the sludge to be gradually dehydrated, thereby avoiding the influence of sludge agglomeration caused by excessive temperature on the dehydration effect, and avoiding the decomposition of harmful components in the sludge by the influence of high temperature, causing environmental air pollution.

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

[0060] Shaft 1 601, top cover 2 has a circular opening, the inner wall of the circular opening is rotatably connected to the exterior of shaft 1 601 via a bearing, shaft 2 603 and shaft 3 604 are disposed below shaft 1 601, two differentials 605 are disposed between shaft 1 601, shaft 2 603, and shaft 3 604, and motor 1 602 is bolted to the top side of top cover 2, the output end of motor 1 602 is connected to the top side of shaft 1 601 via a coupling, and differential 605 is used to vary the rotational speeds among shaft 1 601, shaft 2 603, and shaft 3 604;

[0061] The discharge pipe 610, the outside of the discharge pipe 610 is connected to the inner wall of the box body 1 by bolts, and a notch is provided on the side of the box body 1 close to the discharge pipe 610, and a water diversion block 621 is connected to the notch by bolts. The water diversion block 621 is connected to the side opposite to the inner wall of the discharge pipe 610 by bolts, and circular holes are provided on the three mesh drying plates 5, and the inner walls of the circular holes are respectively connected to the outside of the shaft rod 1 601, the shaft rod 2 603 and the shaft rod 3 604 by bolts. An orifice is provided on the discharge pipe 610, and the inner wall of the orifice is connected to the outside of the feed pipe 8 by bolts.

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

[0063] Three guide plates 607 are provided with cutouts. The inner walls of two of the cutouts are connected to the exterior of the first shaft 601 by bolts, and the inner wall of another cutout is connected to the exterior of the second shaft 603 by bolts. The three guide plates 607 are all located above the mesh drying tray 5 on the same side. The three mesh drying trays 5 are all provided with discharge ports 606, and the three discharge ports 606 are located on different planes.

[0064] There are three inclined drainage plates 608, and the exteriors of the three inclined drainage plates 608 are connected to the inner wall of the box body 1 by bolts. The bottoms of the two uppermost inclined drainage plates 608 are respectively connected to the upper sides of the two lowermost guide plates 607 by bolts, and three equally spaced collection ports 611 are provided on the discharge pipe 610. The three collection ports 611 are all located on the same plane as the inclined drainage plates 608 on the same side.

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

[0066] Two equally spaced closing plates 613, two guide plates 607 at the bottom, and three inclined drainage plates 608 are each provided with a material discharge chute 612. The exteriors of the two closing plates 613 are respectively slidably connected to the inner walls of the two uppermost material discharge chute 612. The bottoms of the three guide plates 607 are each bolted to a hydraulic rod 1 620. The output ends of the hydraulic rod 1 620 are each bolted to a scraper 619. The bottoms of the scrapers 619 are each slidably connected to the bottom inner wall of the mesh drying tray 5 on the same side.

[0067] The two winding rollers 615 and the two guide plates 607 on the same side of the closing plate 613 are connected to the bottom of the bosses by bolts. The inner walls of the two bosses are respectively connected to the outside of the two winding rollers 615 through bearings. The outside of the bosses are connected to the motor 2 616 by bolts. The output end of the motor 2 616 is connected to the outside of the winding roller 615 on the same side through a coupling. The bottom of the guide plate 607 on the same side of the closing plate 613 is connected to the wire rack 617 by bolts. The wire rack 617 is located in the same plane as the winding roller 615.

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

[0069] Two steel cables 618 are slidably connected to the outside of the two wire racks 617, one end of each of the steel cables 618 is bolted to the bottom of the closing 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] Two torsion springs 614, the bottoms of the two closing plates 613 are connected to protrusions by bolts, and the protrusions are connected to torsion springs 614 by bolts. The ends of the torsion springs 614 away from the protrusions are connected to the bottoms of the guide plates 607 on the same side by bolts. An opening is provided on the outside of the box body 1, and a discharge trough 609 is connected to the opening by bolts. The discharge trough 609 is located below the closing plate 613.

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

[0072] Three mounting frames 622, three equally spaced slots are opened 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 a fixing plate by bolts, and three equally spaced fans 623 are fixed on each of them;

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

[0074] In a specific application scenario, the graded drying module 6 is mainly suitable for the graded drying link in the graded drying process, that is, the graded drying module 6 uses the mounting frame 622 and the collecting port 611 located at different heights to make the hot air formed by the heating wire 624 and the fan 623 effectively cover the sludge on the mesh drying tray 5, thereby improving the heating effect of the sludge and allowing the moisture to separate from the sludge more quickly. The guide plate 607 and the inclined drainage plate 608 are used to completely isolate the three mesh drying trays 5, thereby avoiding the mutual influence between the temperature and moisture between the mesh drying trays 5, and ensuring the normal and efficient operation of the drying program.

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

[0076] The heat collecting box 701 is connected to the side opposite to the box body 1 by bolts;

[0077] Heat exchange box 706, heat exchange box 706 is located between heat collecting box 701 and pretreatment tank 3, the outside of heat exchange box 706 is connected to bracket 707 by bolts, bracket 707 is slidably connected to the side opposite to the box body 1, and three equally spaced narrow slots are opened at the bottom of heat exchange box 706, and heat spreaders 705 are connected to the narrow slots by bolts. The end of heat spreaders 705 away from heat exchange box 706 is located inside heat collecting box 701;

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

[0079] In the present 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 body 1 and the heat collecting box 701 and located in the heat collecting box 701. The bottom of the heat collecting box 701 is connected to the motor 3 703 via bolts, and the output end of the motor 3 703 passes through the bottom of the heat collecting box 701 and is connected to the stirring paddle 704 via a coupling.

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

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

[0083] Two symmetrical long rods 711, one end of each of the long rods 711 is connected to the outside of the box body 1 by bolts, and the other end is rotatably connected to the hydraulic rod 2 712 through a bearing;

[0084] The two push-pull rods 713 have one end that is rotatably connected to the outside of the box body 1 through a bearing, and the other end that is rotatably connected to the bottom of the bracket 707 through a bearing, and the output ends of the two hydraulic rods 712 are respectively rotatably connected to the outside of the two push-pull rods 713 through bearings.

[0085] In a specific application scenario, the waste heat recovery module 7 is mainly suitable for the waste heat recovery link in the waste heat recovery process, that is, the waste heat recovery module 7 uses the hydraulic rod 2 712 and the push-pull rod 713 to control the depth of the heat spreader 705 immersed in the heat collecting box 701, thereby controlling the temperature of the sludge in the pretreatment tank 3 transmitted by the serpentine tube 708. While ensuring the preheating effect of the sludge, it avoids the sludge from agglomerating on the surface of the serpentine tube 708, thereby ensuring the heat transfer effect and saving energy.

[0086] A method for rapidly drying printing and dyeing sludge, using the above-mentioned rapid drying device for printing and dyeing sludge, comprises the following steps:

[0087] Step 1: Put the printing and dyeing sludge into the pretreatment tank 3. After a portion of the water is filtered in the pretreatment tank 3, start the power motor 10 to make the screw rod 9 transport the sludge into the box 1;

[0088] Step 2: Use the graded drying module 6 to grade the sludge and dry it so that the sludge on the mesh drying plate 5 can be gradually dehydrated (the hydraulic rod 1 620 drives the scraper 619 to descend, so that the scraper 619 spreads the sludge on the mesh drying plate 5 evenly, retracts the scraper 619, starts the fan 623 and the heating wire 624, and sets them to high speed wind, medium speed wind and slow speed wind, low temperature, medium temperature and high temperature from top to bottom, starts the motor 1 602, and the motor 1 602 drives the shaft 1 601 to rotate, and drives the three mesh drying plates 5 to rotate. Under the influence of the differential 605, the rotation speeds of the shaft 1 601, the shaft 2 603 and the shaft 3 604 gradually decrease, and the sludge on the mesh drying plate 5 is reduced. Part of the moisture is filtered through the mesh on the mesh drying tray 5 and falls 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, and the hydraulic rod 1 620 is started again. The hydraulic rod 1 620 drives the scraper 619 to descend to fit the bottom inner wall of the mesh drying tray 5. The scraper 619 can scrape off the sludge and transport it downward from the discharge port 606. The motor 2 616 is started, the wire rope 618 is tightened, and the discharge chute 612 is opened to allow the sludge to fall onto the mesh drying tray 5 below. The dried sludge is conveyed from the discharge chute 609 to the outside of the conveyor box 1).

[0089] Step 3. During the drying process, the waste heat recovery module 7 collects the waste heat generated by the drying and transports the waste heat into the pretreatment tank 3 to preheat the sludge in the pretreatment tank 3 that will be transported into the box body 1 (in the process of high-temperature water vapor being discharged outward through the exhaust pipe 610, the heat transfer plate 702 absorbs the heat and transports it to the heat collecting box 701. The heat transfer oil in the heat collecting box 701 absorbs and stores the heat. The motor 3 703 drives the stirring paddle 704 to rotate so that the heat transfer oil is heated evenly. The output end of the hydraulic rod 2 712 is extended or shortened to make the heat spreader 705 rise or fall in the heat collecting box 701, changing the depth of the heat spreader 705 immersed in the heat transfer oil. The heat spreader 705 transfers the heat to the heat transfer 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 tubes 708, thereby transferring the heat of the heat transfer oil in the heat exchange box 706 to the sludge in the pretreatment tank 3).

[0090] The above description is only a preferred specific embodiment of the present invention, but the scope of protection of the present invention is not limited thereto. Any technician familiar with the technical field, within the technical scope disclosed by the present invention, who makes equivalent replacements or changes based on the technical solution and inventive concept of the present invention, should be covered by the scope of protection of the present invention.

Claims

1. A rapid drying device for printing and dyeing sludge, characterized in that: include: A box body, wherein a top cover is fixedly connected to the upper side of the box body, and a pretreatment tank is fixedly connected to the outside of the box body, and a plurality of equidistantly distributed filtering holes are opened on the pretreatment tank; Three mesh drying trays, all of which are located in the box and are evenly spaced vertically; A material delivery pipe is provided on the pretreatment tank, one end of the material delivery pipe is located above the uppermost mesh drying plate in the box body, and a spiral rod is provided in the material delivery pipe. A power motor is fixedly connected to the outside of the pretreatment tank, and 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 graded drying module is located on the box body and is used to perform graded drying treatment on the sludge carried on the mesh drying tray in the box body using different temperatures and different wind speeds; The waste heat recovery module is located outside the box and is used to reuse the waste heat generated by the box during the sludge drying process.

2. The rapid drying device for printing and dyeing sludge according to claim 1, characterized in that: The graded drying module comprises: Shaft 1, a circular opening is formed on the top cover, the inner wall of the circular opening is movably connected to the outside of shaft 1, shaft 2 and shaft 3 are provided below shaft 1, two differentials are provided between shaft 1, shaft 2 and shaft 3, and 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, and the differential is used to change the rotational speed between shaft 1, shaft 2 and shaft 3; A discharge pipe, the outside of which is fixedly connected to the inner wall of the box body, a notch is provided on the side of the box body close to the discharge pipe, and a water diversion block is fixedly connected in the notch. The water diversion block is fixedly connected to the side opposite to the inner wall of the discharge pipe, and circular holes are provided on the three mesh drying plates, the inner walls of the circular holes are respectively fixedly connected to the outside of shaft rod one, shaft rod two and shaft rod three, and an orifice is provided on the discharge pipe, the inner wall of the orifice is fixedly connected to the outside of the feed pipe.

3. The rapid drying device for printing and dyeing sludge according to claim 2, characterized in that: The grading and drying module further comprises: Three guide plates, each of which has a cutout hole, wherein the inner walls of two of the cutout holes are fixedly connected to the outer portion of the first shaft, and the inner wall of the other cutout hole is fixedly connected to the outer portion of the second shaft. The three guide plates are all located above the mesh drying tray on the same side, and the three mesh drying trays are all provided with a discharge port, and the positions of the three discharge ports are all located on different planes; There are three inclined drainage plates, the exteriors of the three inclined drainage plates are fixedly connected to the inner wall of the box, the bottoms of the two uppermost inclined drainage plates are fixedly connected to the upper sides of the two lowermost guide plates, and three equally spaced collection ports are provided on the discharge pipe, and the three collection ports are all located on the same plane as the inclined drainage plates on the same side.

4. The rapid drying device for printing and dyeing sludge according to claim 3, characterized in that: The grading and drying module further comprises: Two equally spaced closing plates, the two guide plates at the bottom and the three inclined drainage plates are all provided with material discharge troughs, the exteriors of the two closing plates are respectively slidably connected to the inner walls of the two uppermost material discharge troughs, the bottoms of the three guide plates are fixedly connected to hydraulic rod 1, the output ends of the hydraulic rod 1 are fixedly connected to scrapers, the bottoms of the scrapers are all slidably connected to the bottom inner wall of the mesh drying tray on the same side; The two winding rollers have protrusions fixedly connected to the bottoms of the two guide plates on the same side of the closing plate. The inner walls of the two protrusions are movably connected to the outsides of the two winding rollers respectively. The outsides of the protrusions are fixedly connected to motor 2. The output ends of motor 2 are connected to the outsides of the winding rollers on the same side through couplings. The bottoms of the guide plates on the same side of the closing plate are fixedly connected to wire racks, and the wire racks are located in the same plane as the winding rollers.

5. The rapid drying device for printing and dyeing sludge according to claim 4, characterized in that: The grading and drying module further comprises: Two steel wire ropes, each of which is slidably connected to the outside of the two conductor racks, one end of the 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, the bottoms of the two closing plates are fixedly connected with protrusions, the protrusions are fixedly connected with torsion springs, the ends of the torsion springs away from the protrusions are fixedly connected to the bottoms of the guide plates on the same side, an opening is provided on the outside of the box, a discharge trough is fixedly connected in the opening, and the discharge trough is located below the closing plate.

6. The rapid drying device for printing and dyeing sludge according to claim 5, characterized in that: The grading and drying module further comprises: Three mounting frames, with three equally spaced slots on one side of the box away from the pretreatment tank. The inner walls of the slots are fixedly connected to the outside of the three mounting frames respectively, and the inner walls of the mounting frames are fixedly connected to a fixing plate, on which three equally spaced fans are fixed; Three heating wires are respectively installed in three mounting frames.

7. The rapid drying device for printing and dyeing sludge according to claim 6, characterized in that: The waste heat recovery module includes: A heat collecting box, the heat collecting box being fixedly connected to a side opposite to the box body; The heat exchange box is located between the heat collection box and the pretreatment tank. A bracket is fixedly connected to the outside of the heat exchange box. The bracket is slidably connected to the side opposite to the box body. The bottom of the heat exchange box is provided with three equally spaced narrow slots. Each narrow slot is fixedly connected to a heat spreader. The end of the heat spreader away from the heat exchange box is located inside the heat collection box. Two serpentine tubes are respectively located in the pretreatment tank and the heat exchange box.

8. The rapid drying device for printing and dyeing sludge according to claim 7, characterized in that: The waste heat recovery module further includes: Three heat conducting plates, each of which is T-shaped, with both ends located in the discharge pipe and the other end passing through the box body and the heat collecting box and located in the heat collecting box, and a third motor is fixedly connected to the bottom of the heat collecting box, and the output end of the third motor passes through the bottom of the heat collecting box and is connected to a stirring paddle via a coupling; Two delivery hoses, both of which are located on the side of the heat exchange box away from the box body, one end of the two serpentine tubes on the same side is fixedly connected to the two ends of one of the delivery hoses, and a pump is fixedly connected to the outside of the heat exchange box, and the output end of the pump is connected to one of the delivery hoses through a conduit.

9. The rapid drying device for printing and dyeing sludge according to claim 8, characterized in that: The waste heat recovery module further includes: Two symmetrical long rods, one end of each of the long rods is fixedly connected to the outside of the box, and the other end of each of the long rods is movably connected to the second hydraulic rod; Two push-pull rods, one end of the push-pull rods is movably connected to the outside of the box, and the other end is movably connected to the bottom of the bracket, and the output ends of the two hydraulic rods are respectively movably connected to the outside of the two push-pull rods.

10. A method for rapid drying of printing and dyeing sludge, using the rapid drying device for printing and dyeing sludge according to claim 9, characterized in that: The steps include: Step 1: Put the printing and dyeing sludge into the pretreatment tank. After filtering a part of the water in the pretreatment tank, start the power motor to make the screw rod transport the sludge into the box; Step 2: Use the graded drying module to grade the sludge so that the sludge on the mesh drying plate can be gradually dehydrated. Step 3: During the drying process, the waste heat recovery module collects the waste heat generated by the drying and transports the waste heat into the pretreatment tank to preheat the sludge in the pretreatment tank to be transported into the box.

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