A multiple disc sludge dewaterer and method of operation thereof

Abstract

This invention discloses a multi-plate circular sludge dewatering machine and its operating method, relating to the field of sludge dewatering technology. It includes a processing body, with a cover fixedly connected to the center of the top of the processing body. A feed pipe is fixedly connected to one end of the top of the processing body near the cover, and a first motor is fixedly connected to one end of the top of the cover. A gear rod is fixedly connected to the output end of the first motor, and the bottom of the gear rod is rotatably connected to the top of the processing body. This invention, by setting an arc-shaped plate at one end of the outer wall of the exhaust pipe, not only achieves sludge stirring but also creates a cavity behind the arc-shaped plate, allowing the cold air discharged from the exhaust pipe to fully contact the sludge, causing the water in the sludge to form ice crystals. This further solves the problem that in traditional sludge dewatering machines, the large amount of water in the sludge leads to increased sludge volume, increasing the processing burden on the dewatering device and thus reducing sludge dewatering efficiency.

Description

Technical Field

[0001] This invention relates to the field of sludge dewatering technology, specifically to a multi-plate sludge dewatering machine and its operating method. Background Technology

[0002] The multi-plate sludge dewatering machine is a new type of energy-saving and environmentally friendly equipment with many advantages, including energy saving, water saving, small size, ability to process oily sludge, continuous automatic operation, and easy maintenance. The multi-plate sludge dewatering machine consists of a box-type main unit with two rows of filter media fixed to the main shaft. These media are made of stacked corrugated stainless steel plates. During operation, the flocculated sludge flowing into the main unit is first filtered and then concentrated as it moves forward. As the gap between the upper and lower filter media gradually narrows, the sludge is compressed and dewatered. Finally, the filter cake is discharged from the side of the box-type main unit. The multi-plate sludge dewatering machine utilizes the dewatering principle of "gravity filtration" combined with "compression," resulting in a thick, uniformly textured sludge cake that is discharged like a sponge.

[0003] The existing technology has the following problems: 1. During the use of existing sludge dewatering machines, the sludge contains a large amount of water, which causes the sludge volume to increase, increasing the processing burden on the dewatering device and thus reducing the sludge dewatering efficiency. 2. During the operation of existing sludge dewatering machines, some ice crystals tend to adhere to the equipment during the freezing pretreatment of sludge. Over time, the ice crystals accumulate and increase in size, causing the sludge to clump together and become difficult to discharge smoothly. Summary of the Invention

[0004] This invention provides a multi-plate sludge dewatering machine and its operating method to solve the problems mentioned in the background art.

[0005] To solve the above-mentioned technical problems, the technical solution adopted by the present invention is as follows: A multi-plate sludge dewatering machine includes a processing body. A cover is fixedly connected to the center of the top of the processing body, and a feed pipe is fixedly connected to one end of the top of the processing body near the cover. A first motor is fixedly connected to one end of the top of the cover. A gear rod is fixedly connected to the output end of the first motor, and the bottom of the gear rod is rotatably connected to the top of the processing body. A gear disc meshes with one side of the outer wall of the gear rod, and a linkage pipe is fixedly connected to the bottom of the gear disc. The top of one side of the outer wall of the linkage pipe is rotatably connected to the center of the top of the processing body, and a stirring frame is fixedly connected to both ends of the middle part of the outer wall of the linkage pipe.

[0006] A further improvement of the technical solution of the present invention is as follows: an air pump is fixedly connected to one end of the top of the processing body, and a guide is fixedly connected to the output end of the air pump. A guide pipe is fixedly connected to one end of the bottom of the guide pipe. A venting disc is fixedly connected to one end of the venting disc, and a rotating shaft exhaust plate is rotatably connected to the bottom of the venting disc. Several venting pipes are fixedly connected to the bottom of each rotating shaft exhaust plate. A limit tube is fixedly connected to one end of the venting pipe, and an exhaust pipe is rotatably connected to one side of the outer wall of the limit tube. A blocking block is fixedly connected to the inner wall of the exhaust pipe. One side of the outer wall of the exhaust pipe is rotatably connected to the inner cavity of the linkage pipe. A bevel gear is fixedly connected to one end of the outer wall of the exhaust pipe near the linkage pipe. A bevel gear meshes with a bevel gear at the bottom. A support column is fixedly connected to the inner wall of the bevel gear. The bottom of the support column is fixedly connected to the center of the bottom of the inner wall of the processing body, and the top of the support column is fixedly connected to the bottom of the guide.

[0007] A further improvement of the technical solution of the present invention is that: a number of support plates are fixedly connected to the outer wall of the linkage pipe near the stirring rack, and one side of the outer wall of the support plate penetrates the outer wall of the exhaust pipe; a number of limiting frames are fixedly connected to the upper and lower ends of the outer wall of the support plate; and a number of elastic telescopic frames are slidably connected to the inner cavity of the support plate.

[0008] A further improvement of the technical solution of the present invention is that: an arc-shaped block is fixedly connected to one end of the elastic telescopic frame, and the side of the outer wall of the arc-shaped block close to the elastic telescopic frame overlaps with one side of the outer wall of the support plate; an arc-shaped plate is slidably connected to the upper and lower ends of the outer wall of the arc-shaped block, and one end of the inner cavity of the arc-shaped plate is slidably connected to the outer wall of the limiting frame.

[0009] A further improvement of the technical solution of the present invention is that: the two ends of the inner cavity of the processing body are provided with guide grooves, and the upper and lower ends of the inner wall of the guide groove are fixedly connected with wave plates, and the surface of the wave plates is slidably connected with movable columns, one end of the movable columns being fixedly connected to one end of the outer wall of the arc plate.

[0010] A further improvement of the technical solution of the present invention is that: the inner wall of the guide groove is slidably connected to the side of the wave plate, and one side of the outer wall of the arc-shaped partition plate overlaps with the outer wall of the arc-shaped plate.

[0011] A further improvement of the technical solution of the present invention is that: discharge ports are provided at both ends of the bottom of the processing body, and a heating tube is fixedly connected to the bottom of the processing body; an electric heating mesh is fixedly connected to the middle of one side of the inner wall of the heating tube; and an exhaust valve is fixedly connected to one end of the top of the heating tube.

[0012] A further improvement of the technical solution of the present invention is that: an electric telescopic rod is fixedly connected to the center of the bottom of the processing body, and a sealing block is fixedly connected to the output end of the electric telescopic rod, while the two ends of the top of the sealing block are slidably connected to the inner wall of the discharge port.

[0013] A further improvement of the technical solution of the present invention is that: one end of the heating tube is fixedly connected to a dehydration chamber, and a plurality of second motors are fixedly connected to the outer wall of the dehydration chamber, and the output end of the second motor is fixedly connected to a filter body, and one end of the filter body is rotatably connected to one side of the inner wall of the dehydration chamber.

[0014] A method for dewatering sludge using a multi-plate circular plate sludge dewatering machine, as described above, is as follows: S1: By pouring sludge into the main processing unit through the feed pipe, while the sludge is stirred by the mixing rack, the air pump is started, and the cold air is discharged through the exhaust pipe by the rotating shaft exhaust plate, causing the water in the sludge to form ice crystals. Then, the sludge containing ice crystals is sent into the heating tube, and the ice crystals in the sludge are evaporated and vaporized by the electric heating screen. Finally, the sludge is discharged into the dewatering chamber for further dewatering treatment. S2: By setting guide grooves at both ends of the inner cavity of the main body and setting wave plates at the upper and lower ends of the inner wall of the guide grooves, when the arc plate rotates under the traction of the linkage pipe, the moving column slides on the surface of the wave plate and vibrates at a high frequency and small amplitude, thereby avoiding the problem of ice crystals generated by sludge freezing adhering to the surface of the arc plate. S3: By starting several second motors, the second motors drive the filter body to perform secondary dewatering on the colloidal sludge that enters the dewatering chamber.

[0015] Due to the adoption of the above technical solution, the technical progress achieved by this invention compared to the prior art is as follows: 1. This invention provides a multi-plate circular sludge dewatering machine and its operating method. Cold air is discharged from the exhaust pipe through the ventilation plate, allowing the cold air to contact the sludge. Since one end of the outer wall of the exhaust pipe is provided with an arc-shaped plate, when the linkage pipe drives the arc-shaped plate to rotate, it can not only stir the sludge, but also form a cavity behind the arc-shaped plate when the sludge passes over the surface of the arc-shaped plate. Due to the high viscosity of the sludge itself, the sludge forms a cavity behind the arc-shaped plate, allowing the cold air discharged from the exhaust pipe to fully contact the sludge. This causes the water in the sludge to form ice crystals, further solving the problem that in the traditional sludge dewatering machine, the sludge contains a large amount of water, which causes the sludge volume to increase, increasing the processing burden of the dewatering device and thus reducing the sludge dewatering efficiency.

[0016] 2. This invention provides a multi-plate sludge dewatering machine and its operating method. Guide grooves are set at both ends of the inner cavity of the main processing unit, and corrugated plates are set at the upper and lower ends of the inner wall of the guide grooves. A movable column is set at one end of the outer wall of the arc-shaped plate, causing the arc-shaped plate to rotate under the traction of the linkage pipe. This causes the movable column to slide on the surface of the corrugated plate, and the arc-shaped plate, under the restriction of the limiting frame, undergoes high-frequency, small-amplitude vibration. During this process, the arc-shaped block set between the arc-shaped plates is continuously squeezed. An elastic telescopic frame is set at one end of the arc-shaped block to reset the arc-shaped plates at the upper and lower ends of the outer wall of the arc-shaped block. This avoids the problem of ice crystals generated by sludge freezing adhering to the surface of the arc-shaped plate. This solves the problem that during the use of the sludge dewatering machine, when sludge is frozen and pre-treated, some ice crystals easily adhere to the equipment. Over time, the ice crystals accumulate, increasing in size and causing sludge to clump and become difficult to discharge. Attached Figure Description

[0017] Figure 1 This is a schematic diagram of the structure of the present invention; Figure 2 This is a schematic diagram of the dehydration chamber structure of the present invention; Figure 3 This is a schematic diagram of the sealing structure of the present invention; Figure 4 This is a schematic diagram of the heating tube structure of the present invention; Figure 5 This is a schematic diagram of the linkage pipe structure of the present invention; Figure 6 This is a schematic diagram of the flow guide tube structure of the present invention; Figure 7 This is a schematic diagram of the guide groove structure of the present invention; Figure 8 This is a schematic diagram of the exhaust pipe structure of the present invention; Figure 9 This is a schematic diagram of the support column structure of the present invention; Figure 10 This is a schematic diagram of the support plate structure of the present invention; Figure 11 For the present invention Figure 7 Enlarged diagram of point A in the middle.

[0018] In the diagram: 1. Processing body; 2. Cover; 3. Feed pipe; 4. First motor; 5. Gear rod; 6. Gear disc; 7. Linkage pipe; 8. Stirring frame; 9. Air pump; 10. Flow guide; 11. Flow guide pipe; 12. Vent plate; 13. Rotary shaft exhaust plate; 14. Vent pipe; 15. Limiting pipe; 16. Exhaust pipe; 17. Barrier block; 18. Bevel gear; 19. Bevel gear disc; 20. Support column; 21. Support plate; 22. Limiting frame; 23. Elastic telescopic frame; 24. Arc block; 25. Arc plate; 26. Guide groove; 27. Corrugated plate; 28. Moving column; 29. ​​Arc partition plate; 30. Discharge port; 31. Heating pipe; 32. Electric heating mesh; 33. Exhaust valve; 34. Electric telescopic rod; 35. Sealing block; 36. Dehydration chamber; 37. Second motor; 38. Filter body. Detailed Implementation

[0019] To make the technical means, creative features, objectives and effects of this invention easier to understand, the invention will be further described below in conjunction with specific embodiments.

[0020] like Figures 1 to 11 As shown in the embodiment of the present invention, a multi-plate sludge dewatering machine includes a processing body 1. A cover 2 is fixedly connected to the center of the top of the processing body 1, and a feed pipe 3 is fixedly connected to one end of the top of the processing body 1 near the cover 2. A first motor 4 is fixedly connected to one end of the top of the cover 2. A gear rod 5 is fixedly connected to the output end of the first motor 4, and the bottom of the gear rod 5 is rotatably connected to the top of the processing body 1. A gear disc 6 meshes with one side of the outer wall of the gear rod 5, and a linkage pipe 7 is fixedly connected to the bottom of the gear disc 6. The top of one side of the outer wall of the linkage pipe 7 is rotatably connected to the center of the top of the processing body 1, and both ends of the middle part of the outer wall of the linkage pipe 7 are fixedly connected to a stirring frame 8. A dewatering chamber 36 is fixedly connected to one end of the heating pipe 31, and several second motors 37 are fixedly connected to the outer wall of the dewatering chamber 36. A filter body 38 is fixedly connected to the output end of the second motors 37, and one end of the filter body 38 is rotatably connected to one side of the inner wall of the dewatering chamber 36.

[0021] During operation, sludge is poured into the treatment body 1 through the feed pipe 3, and the first motor 4, located at the top of the cover 2, is started. The first motor 4 drives the gear rod 5 at its output end, which in turn drives the linkage pipe 7 at its bottom through the gear disc 6. This allows the stirring racks 8, located at both ends of the outer wall of the linkage pipe 7, to stir the sludge. During this process, the air pump 9, located at the top of the treatment body 1, is started. The air pump 9 sends cold air into the guide vane 10, and the guide vane 10 sends the cold air through the guide pipe 11 at its bottom end into the ventilation plate 1. In step 2, cold air is discharged from the exhaust pipe 16 through the ventilation plate 12, allowing the cold air to come into contact with the sludge. Since one end of the outer wall of the exhaust pipe 16 is equipped with an arc-shaped plate 25, when the linkage pipe 7 drives the arc-shaped plate 25 to rotate, it not only agitates the sludge, but also, due to the high viscosity of the sludge, forms cavities behind the arc-shaped plate 25 as the sludge passes over it. This allows the cold air discharged from the exhaust pipe 16 to fully contact the sludge, causing the water in the sludge to form ice crystals. Simultaneously, the sludge expands in volume, disrupting the colloidal structure and cell walls within the sludge, thereby achieving… To remove the water containing organic matter from the sludge, the linkage pipe 7 drives the stirring frame 8 and the arc plate 25 to rotate continuously, making it difficult for the sludge in the treatment body 1 to coagulate and form a slushy texture. At this time, the electric telescopic rod 34 set at the center of the bottom of the treatment body 1 is activated, causing the electric telescopic rod 34 to drive the sealing block 35 set at its output end to disengage from the discharge ports 30 set at both ends of the bottom of the treatment body 1, allowing the slushy sludge to enter the heating pipe 31 through the discharge port 30. The electric heating mesh 32 set in the middle of one side of the inner wall of the heating pipe 31 is then activated to heat the slushy sludge. This process rapidly melts and evaporates the ice crystals in the sludge, and the evaporated water vapor discharges most of the free water through the exhaust valve 33. Meanwhile, the sludge flows through the electric heating mesh 32 and along the arc-shaped groove at the bottom of the heating tube 31 into the dewatering chamber 36. At this time, several second motors 37 are activated, and the second motors 37 drive the filter body 38 to perform secondary dewatering on the colloidal sludge entering the dewatering chamber 36. This further solves the problem that in traditional sludge dewatering machines, the sludge contains a large amount of water, which causes the sludge volume to increase, increasing the processing burden on the dewatering device and thus reducing the sludge dewatering efficiency.

[0022] An air pump 9 is fixedly connected to one end of the top of the processing body 1, and a guide 10 is fixedly connected to the output end of the air pump 9. A guide pipe 11 is fixedly connected to one end of the bottom of the guide 10. A venting disc 12 is fixedly connected to one end of the guide pipe 11, and a rotating shaft exhaust plate 13 is rotatably connected to the bottom of the venting disc 12. Several venting pipes 14 are fixedly connected to the bottom of each rotating shaft exhaust plate 13. A limit pipe 15 is fixedly connected to one end of each venting pipe 14, and an exhaust pipe 16 is rotatably connected to one side of the outer wall of the limit pipe 15. A baffle block 17 is fixedly connected to the inner wall of the exhaust pipe 16. One side of the outer wall of the exhaust pipe 16 is rotatably connected to the inner cavity of the linkage pipe 7. A bevel gear 18 is fixedly connected to the outer wall of the exhaust pipe 16 near the linkage pipe 7. A bevel gear 19 meshes with the bottom of the bevel gear 18. A support column 20 is fixedly connected to the inner wall of the bevel gear 19. The bottom of the support column 20 is fixedly connected to the center of the bottom of the inner wall of the processing body 1. The top of the support column 20 is fixedly connected to the bottom of the guide 10. The outer wall of the linkage pipe 7 is near the center of the inner cavity of the linkage pipe 7. A plurality of support plates 21 are fixedly connected to one side of the stirring rack 8, and one side of the outer wall of the support plate 21 penetrates one side of the outer wall of the exhaust pipe 16. A plurality of limiting brackets 22 are fixedly connected to the upper and lower ends of the outer wall of the support plate 21, and a plurality of elastic telescopic brackets 23 are slidably connected to the inner cavity of the support plate 21. An arc-shaped block 24 is fixedly connected to one end of the elastic telescopic bracket 23, and the side of the outer wall of the arc-shaped block 24 near the elastic telescopic bracket 23 overlaps with one side of the outer wall of the support plate 21. Arc-shaped plates are slidably connected to the upper and lower ends of the outer wall of the arc-shaped block 24. 25, and one end of the inner cavity of the arc plate 25 is slidably connected to the outer wall of the limiting frame 22. The two ends of the inner cavity of the processing body 1 are provided with guide grooves 26, and the upper and lower ends of the inner wall of the guide groove 26 are fixedly connected with wave plates 27. The surface of the wave plate 27 is slidably connected with a moving column 28. One end of the moving column 28 is fixedly connected to one end of the outer wall of the arc plate 25. The inner wall of the guide groove 26 is slidably connected to the side of the wave plate 27, and one side of the outer wall of the arc plate 29 overlaps with the outer wall of the arc plate 25.

[0023] During operation, several support plates 21 are installed on the outer wall of the linkage pipe 7 near the mixing frame 8, and several limiting frames 22 are installed at the upper and lower ends of the outer wall of the support plates 21. The limiting frames 22 limit the arc plate 25, so that the linkage pipe 7 drives the mixing frame 8 to rotate, thereby driving the arc plate 25 to stir the sludge. Since an exhaust pipe 16 is installed on one side of the outer wall of the support plate 21, and the outer wall of the exhaust pipe 16 penetrates the linkage pipe 7, when the linkage pipe 7 rotates, a cold air is sent into the guide vane 10 by an air pump 9 installed at one end of the top of the treatment body 1. The cold air is then sent into the ventilation plate 12 through the guide vane 11 installed at the bottom of the guide vane 10. The exhaust plate 13 installed at the bottom of the ventilation plate 12 is used to exhaust the cold air. The cold air is directed along the exhaust fin 13 of the rotating shaft into several ventilation pipes 14 at its bottom, and then discharged into the limiting pipe 15 through the ventilation pipes 14. The limiting pipe 15 then allows the cold air to exit from the exhaust pipe 16 into the cavity between the arc-shaped plates 25. Because the surface of the arc-shaped plates 25 is streamlined, when the sludge is stirred, it passes over the surface of the arc-shaped plates 25, causing the sludge to flow around and separate into a low-pressure cavity. The cold air in the cavity of the arc-shaped plates 25 enters the low-pressure cavity, condensing the water in the sludge into ice crystals. This causes the sludge to expand in volume, destroying the colloidal structure and cell walls within the sludge, reducing sludge adhesion, and stripping away organic matter from the water. By setting a barrier block 17 on the inner wall of the exhaust pipe 16, when the sludge is injected into the treatment body 1... When the obstruction block 17 is used, the inner diameter of the exhaust pipe 16 is reduced, and under the influence of air pressure, it is difficult for sludge to flow into the exhaust pipe 16. By setting a bevel gear 18 on the outer wall of the exhaust pipe 16 near the linkage pipe 7, and setting a support column 20 at the center of the bottom of the inner wall of the processing body 1, and setting a bevel gear 19 on the outer wall of the support column 20, when the linkage pipe 7 drives the exhaust pipe 16 to rotate at a constant speed, the bottom of the bevel gear 18 meshes with one side of the outer wall of the bevel gear 19, so that the exhaust pipe 16 rotates at a constant speed in the inner cavity of the linkage pipe 7. Under the influence of centrifugal force, the sludge attached to the exhaust pipe 16 is thrown out, avoiding some sludge from adhering to the exhaust pipe 16 along the cavity in the arc plate 25 during the sludge stirring process. Within 6, this leads to blockage of the exhaust pipe 16. During the low-temperature ice crystallization process of the sludge, although the sludge inside the treatment body 1 is constantly stirred, making it difficult to form large ice crystals, the cold air discharged from the exhaust pipe 16 easily causes ice crystals to form on the surface of the arc-shaped plate 25 when it comes into contact with the sludge through the cavity. This makes it difficult for the arc-shaped plate 25 to create a low-pressure cavity for sludge flow separation. Not only is it difficult for the cold air to fully contact the sludge, but ice crystals also easily condense on the surface of the arc-shaped plate 25, resulting in large ice blocks. To address this, guide grooves 26 are installed at both ends of the inner cavity of the treatment body 1, and corrugated plates 27 are installed at the upper and lower ends of the inner wall of the guide grooves 26. A moving column 28 is installed at one end of the outer wall of the arc-shaped plate 25.When the arc-shaped plate 25 rotates under the traction of the linkage pipe 7, the moving column 28 slides on the surface of the corrugated plate 27, and the arc-shaped plate 25 vibrates at a high frequency and small amplitude under the restriction of the limiting frame 22. During this period, it continuously squeezes the arc-shaped block 24 set between the arc-shaped plates 25. The elastic telescopic frame 23 set at one end of the arc-shaped block 24 resets the arc-shaped plates 25 at the upper and lower ends of the outer wall of the arc-shaped block 24, thereby avoiding the problem of ice crystals generated by sludge freezing adhering to the surface of the arc-shaped plate 25. This solves the problem that during the use of the sludge dewatering machine, some ice crystals are easily attached to the equipment during the freezing pretreatment of sludge. Over time, the ice crystals accumulate and increase in size, causing sludge to clump and become difficult to discharge.

[0024] The bottom of the processing body 1 has discharge ports 30 at both ends, and a heating tube 31 is fixedly connected to the bottom of the processing body 1. An electric heating mesh 32 is fixedly connected to the middle of one side of the inner wall of the heating tube 31, and an exhaust valve 33 is fixedly connected to one end of the top of the heating tube 31. An electric telescopic rod 34 is fixedly connected to the center of the bottom of the processing body 1, and a sealing block 35 is fixedly connected to the output end of the electric telescopic rod 34. The two ends of the top of the sealing block 35 are slidably connected to the inner wall of the discharge port 30.

[0025] During operation, discharge ports 30 are set at both ends of the bottom of the main body 1. After the sludge freezing and cell wall breaking treatment is completed, the electric telescopic rod 34 set at the center of the bottom of the main body 1 is activated, and the sealing block 35 set at its output end is disengaged from the discharge port 30. Since the surface of the sealing block 35 is curved, the icy sludge flows into the heating tube 31 through the gap between the sealing block 35 and the discharge port 30. The electric heating screen 32 is set in the middle of one side of the inner wall of the heating tube 31, so that the icy sludge falling into the surface of the electric heating screen 32 melts quickly, causing the ice crystals in the sludge to evaporate and form water vapor, which is discharged through the exhaust valve 33 set at one end of the top of the heating tube 31. The remaining sludge and non-aqueous solution fall into the bottom of the heating tube 31 through the electric heating screen 32 and are discharged into the dewatering chamber 36 through the arc groove set at the bottom of the heating tube 31 for further dewatering treatment.

[0026] A method for dewatering sludge using a multi-plate circular plate sludge dewatering machine, as described above, is as follows: S1: By pouring sludge into the processing body 1 through the feed pipe 3, and stirring the sludge with the stirring rack 8, the air pump 9 is started, and the cold air is discharged through the exhaust pipe 16 using the rotating shaft exhaust plate 13, so that the water in the sludge forms ice crystals. Then, the sludge containing ice crystals is sent into the heating pipe 31, and the ice crystals in the sludge are evaporated and vaporized using the electric heating screen 32. Finally, the sludge is discharged into the dewatering chamber 36 for further dewatering treatment. S2: By setting guide grooves 26 at both ends of the inner cavity of the processing body 1, and setting wave plates 27 at the upper and lower ends of the inner wall of the guide grooves 26, when the arc plate 25 rotates under the traction of the linkage pipe 7, the moving column 28 slides on the surface of the wave plate 27 and vibrates at a high frequency and small amplitude, thereby avoiding the problem of ice crystals generated by sludge freezing adhering to the surface of the arc plate 25. S3: By starting several second motors 37, the second motors 37 drive the filter body 38 to perform secondary dewatering on the colloidal sludge that enters the dewatering chamber 36.

[0027] The working principle of this multi-plate sludge dewatering machine and its operation method will be explained in detail below.

[0028] like Figures 1-11As shown, sludge is poured into the treatment body 1 through the feed pipe 3, and the first motor 4 at the top of the cover 2 is started. The first motor 4 drives the gear rod 5 at its output end, and the gear rod 5 drives the linkage pipe 7 at its bottom through the gear plate 6 to rotate. The stirring racks 8 at both ends of the middle of the outer wall of the linkage pipe 7 are used to stir the sludge. During this process, the air pump 9 at the top of the treatment body 1 is started, and the air pump 9 sends cold air into the guide tube 10. The guide tube 10 then sends the cold air through the guide tube 11 at its bottom end into the ventilation plate 1. In step 2, cold air is discharged from the exhaust pipe 16 through the ventilation plate 12, allowing the cold air to come into contact with the sludge. Since one end of the outer wall of the exhaust pipe 16 is equipped with an arc-shaped plate 25, when the linkage pipe 7 drives the arc-shaped plate 25 to rotate, it not only agitates the sludge, but also, due to the high viscosity of the sludge, forms cavities behind the arc-shaped plate 25 as the sludge passes over it. This allows the cold air discharged from the exhaust pipe 16 to fully contact the sludge, causing the water in the sludge to form ice crystals. Simultaneously, the sludge expands in volume, disrupting the colloidal structure and cell walls within the sludge, thereby achieving… To remove the water containing organic matter from the sludge, the linkage pipe 7 drives the stirring frame 8 and the arc plate 25 to rotate continuously, making it difficult for the sludge in the treatment body 1 to coagulate and form a slushy texture. At this time, the electric telescopic rod 34 set at the center of the bottom of the treatment body 1 is activated, causing the electric telescopic rod 34 to drive the sealing block 35 set at its output end to disengage from the discharge ports 30 set at both ends of the bottom of the treatment body 1, allowing the slushy sludge to enter the heating pipe 31 through the discharge port 30. The electric heating mesh 32 set in the middle of one side of the inner wall of the heating pipe 31 is then activated to heat the slushy sludge. This process rapidly melts and evaporates the ice crystals in the sludge, and the evaporated water vapor discharges most of the free water through the exhaust valve 33. Meanwhile, the sludge flows through the electric heating mesh 32 and along the arc-shaped groove at the bottom of the heating tube 31 into the dewatering chamber 36. At this time, several second motors 37 are activated, and the second motors 37 drive the filter body 38 to perform secondary dewatering on the colloidal sludge entering the dewatering chamber 36. This further solves the problem that in traditional sludge dewatering machines, the sludge contains a large amount of water, which causes the sludge volume to increase, increasing the processing burden on the dewatering device and thus reducing the sludge dewatering efficiency.

[0029] The present invention has been described in detail above. However, modifications or improvements can be made to it, which will be obvious to those skilled in the art. Therefore, any modifications or improvements that do not depart from the spirit of the present invention are within the scope of protection of the present invention.

Claims

1. A multi-plate sludge dewatering machine, comprising a processing body (1), characterized in that: A cover (2) is fixedly connected to the center of the top of the processing body (1), and a feed pipe (3) is fixedly connected to one end of the top of the processing body (1) near the cover (2). A first motor (4) is fixedly connected to one end of the top of the cover (2). A gear rod (5) is fixedly connected to the output end of the first motor (4). The bottom of the gear rod (5) is rotatably connected to the top of the processing body (1). A gear plate (6) meshes with one side of the outer wall of the gear rod (5). A linkage pipe (7) is fixedly connected to the bottom of the gear plate (6). The top of one side of the outer wall of the linkage pipe (7) is rotatably connected to the center of the top of the processing body (1). A stirring rack (8) is fixedly connected to both ends of the middle part of the outer wall of the linkage pipe (7). One end of the top of the processing body (1) is fixedly connected to an air pump (9), and the output end of the air pump (9) is fixedly connected to a guide (10). One end of the bottom of the guide (10) is fixedly connected to a guide pipe (11). One end of the guide pipe (11) is fixedly connected to a venting disc (12), and the bottom of the venting disc (12) is rotatably connected to a rotating shaft exhaust plate (13). The bottom of the rotating shaft exhaust plate (13) is fixedly connected to several venting pipes (14). One end of the venting pipe (14) is fixedly connected to a limiting pipe (15), and one side of the outer wall of the limiting pipe (15) is rotatably connected to an exhaust pipe (). 16), and a blocking block (17) is fixedly connected to the inner wall of the exhaust pipe (16). One side of the outer wall of the exhaust pipe (16) is rotatably connected to the inner cavity of the linkage pipe (7). A bevel gear (18) is fixedly connected to the outer wall of the exhaust pipe (16) near the linkage pipe (7). A bevel gear (19) meshes with the bottom of the bevel gear (18). A support column (20) is fixedly connected to the inner wall of the bevel gear (19). The bottom of the support column (20) is fixedly connected to the center of the bottom of the inner wall of the processing body (1). The top of the support column (20) is fixedly connected to the bottom of the guide (10). A number of support plates (21) are fixedly connected to the outer wall of the linkage pipe (7) near the stirring rack (8), and one side of the outer wall of the support plate (21) penetrates the outer wall of the exhaust pipe (16). A number of limiting frames (22) are fixedly connected to the upper and lower ends of the outer wall of the support plate (21), and a number of elastic telescopic frames (23) are slidably connected to the inner cavity of the support plate (21). One end of the elastic telescopic frame (23) is fixedly connected to an arc-shaped block (24), and the outer wall of the arc-shaped block (24) near the elastic telescopic frame (23) overlaps with the outer wall of the support plate (21). The upper and lower ends of the outer wall of the arc-shaped block (24) are slidably connected to an arc-shaped plate (25), and one end of the inner cavity of the arc-shaped plate (25) is slidably connected to the outer wall of the limiting frame (22). The processing body (1) has guide grooves (26) at both ends of its inner cavity, and wave plates (27) are fixedly connected to the upper and lower ends of the inner wall of the guide grooves (26). A movable column (28) is slidably connected to the surface of the wave plate (27), and one end of the movable column (28) is fixedly connected to one end of the outer wall of the arc plate (25). The inner wall of the guide groove (26) is slidably connected to the arc-shaped partition plate (29) on the side near the wave plate (27), and one side of the outer wall of the arc-shaped partition plate (29) overlaps with the outer wall of the arc-shaped plate (25).

2. The multi-plate sludge dewatering machine according to claim 1, characterized in that: The bottom of the processing body (1) has discharge ports (30) at both ends, and a heating tube (31) is fixedly connected to the bottom of the processing body (1). An electric heating mesh (32) is fixedly connected to the middle of one side of the inner wall of the heating tube (31), and an exhaust valve (33) is fixedly connected to one end of the top of the heating tube (31).

3. The multi-plate sludge dewatering machine according to claim 2, characterized in that: An electric telescopic rod (34) is fixedly connected to the center of the bottom of the processing body (1), and a sealing block (35) is fixedly connected to the output end of the electric telescopic rod (34), while the two ends of the top of the sealing block (35) are slidably connected to the inner wall of the discharge port (30).

4. The multi-plate sludge dewatering machine according to claim 3, characterized in that: One end of the heating tube (31) is fixedly connected to the dehydration chamber (36), and several second motors (37) are fixedly connected to the outer wall of the dehydration chamber (36). The output end of the second motor (37) is fixedly connected to the filter body (38), and one end of the filter body (38) is rotatably connected to one side of the inner wall of the dehydration chamber (36).

5. A method for operating a multi-plate sludge dewatering system, wherein the method employs the multi-plate sludge dewatering machine described in claim 4, characterized in that: The method is as follows: S1: By pouring sludge into the processing body (1) through the feed pipe (3), and stirring the sludge with the stirring rack (8), the air pump (9) is started, and the cold air is discharged through the exhaust pipe (16) using the rotating shaft exhaust plate (13), so that the water in the sludge forms ice crystals. Then, the sludge containing ice crystals is sent into the heating pipe (31), and the ice crystals in the sludge are evaporated and vaporized by the electric heating mesh (32). Finally, the sludge is discharged into the dewatering chamber (36) for further dewatering treatment. S2: By setting guide grooves (26) at both ends of the inner cavity of the treatment body (1) and setting wave plates (27) at the upper and lower ends of the inner wall of the guide grooves (26), when the arc plate (25) rotates under the traction of the linkage pipe (7), the moving column (28) slides on the surface of the wave plate (27) and vibrates at a high frequency and small amplitude, thereby avoiding the problem of ice crystals generated by sludge freezing adhering to the surface of the arc plate (25); S3: By starting several second motors (37) and making the second motors (37) drive the filter body (38) to perform secondary dewatering on the colloidal sludge entering the dewatering chamber (36).

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