Sludge dewatering equipment and dewatering method

Abstract

The invention discloses sludge dewatering equipment and a dewatering method, and relates to the technical field of sludge treatment.The sludge dewatering equipment comprises a wet sludge tank, a water tank and a dry sludge tank, and the wet sludge tank, the water tank and the dry sludge tank are sequentially arranged from left to right. Due to the fact that the filter screen cylinder and the outer gear ring are connected in a clamped mode through the clamping cylinder and the groove cylinder, the filter screen cylinder and the outer gear ring form an integrated structure, and due to the fact that the outer gear ring is connected with the fluted disc A in a meshed mode and connected with the limiting frame through the limiting plate A and the limiting groove A in a sliding mode, when the output end of the driving motor drives the rotating shaft and the fluted disc A to rotate, the fluted disc A rotates. The outer gear ring and the filter screen cylinder rotate together, so that sludge and impurities on the surface of the filter screen cylinder can be subjected to the action of centrifugal force, substances blocked in meshes can be thrown out, the permeability of the filter screen cylinder is recovered, meanwhile, the sludge can be more uniformly distributed in the filter screen cylinder, serious local blockage is avoided, and the service life of the filter screen cylinder is prolonged. Therefore, the dewatering efficiency of the sludge dewatering equipment is improved.

Description

Technical Field

[0001] The present invention relates to the technical field of sludge treatment, in particular to sludge dewatering equipment and a dewatering method. Background Art

[0002] As domestic and industrial water consumption continues to increase, wastewater treatment volumes and sludge production are also increasing. Regardless of the final disposal method chosen for this sludge, the prerequisite is dewatering the excess sludge. Traditional activated sludge dewatering methods include natural drying, granulation dehydration, mechanical dehydration, and thermal dehydration.

[0003] According to a sludge dewatering device with the announcement number CN218951220U, it includes a barrel body with a feed pipe mounted on one side of the top of the barrel body, a discharge port on the other side of the bottom of the barrel body, a discharge cover outside the discharge port, a motor mounted on one end of the barrel body, and a filter port on the other end. The utility model introduces sludge through the feed pipe, with spiral feed blades pushing the sludge toward the filter port. A nearby stirring blade stirs the sludge to accelerate the flow of water in the sludge. Combined with the pressure of the front spiral feed, the water in the sludge is efficiently discharged into a water collection tank. The remaining sludge can be conveniently discharged from the discharge port by opening the discharge cover.

[0004] Regarding the above-mentioned related solutions, the sludge dehydration operation is achieved through the cooperation of the barrel, motor, spiral feed blades and filter screen. However, in actual use, the wet sludge contains a large amount of impurities and particulate matter, which can easily clog the mesh when passing through the filter screen, thereby affecting the dehydration efficiency. As the use time increases, the clogging situation is likely to become more serious, resulting in a decrease in the dehydration effect, and even the filter screen needs to be replaced frequently, which increases the operating cost. In addition, the filter screen is fixed at the filter port, which is difficult to clean and maintain regularly. The sludge and impurities accumulated over a long period of time may be firmly attached to the filter screen, making cleaning extremely difficult. Summary of the Invention

[0005] The object of the present invention is to provide a sludge dewatering device and a dewatering method to solve the technical problems raised in the above background technology.

[0006] To achieve the above-mentioned objectives, the present invention provides the following technical solutions: a sludge dewatering device, comprising a wet sludge tank, a water tank, and a dry sludge tank, wherein the wet sludge tank, the water tank, and the dry sludge tank are arranged in sequence from left to right, a pipe B and a pipe C are respectively provided above the water tank and the dry sludge tank, a pipe A extending to the inside of pipe B is provided at the bottom end of one side of the wet sludge tank, a rear cover is provided on one side of the pipe B, a filter cylinder is provided through the inside of the pipe B and the rear cover, a dewatering mechanism is provided through the inside of the pipe B, the filter cylinder, and the rear cover, and the dewatering mechanism includes a spiral extrusion member located inside the filter cylinder;

[0007] A rotating mechanism is provided on the inner side of the pipe B, and the rotating mechanism includes a limit frame, a rotating motor, a rotating shaft, a gear disc A, an outer gear ring, a limit groove A, a limit plate A, a clamping cylinder and a groove cylinder. A limit frame is provided on the inner side of the pipe B, and the outer side of the filter cylinder is engaged with an outer gear ring movably connected to the limit frame, and the top end of the outer gear ring is meshed with the gear disc A, and the inner side of the limit frame is rotatably connected to the rotating shaft welded to the gear disc A through a bearing.

[0008] Preferably, a driving motor is installed at the top of the pipe B through a stand, and the outer surface of the output end of the driving motor and the outer surface of one end of the spiral extrusion piece are connected to a bevel gear set, and a slot is provided at the other end of the spiral extrusion piece, and the inner side of the rear cover plate is connected to a card frame forming a snap-fit structure with the card slot through a bearing.

[0009] Preferably, a rotating motor connected to the rotating shaft through a coupling is installed on one side of the limit frame, a limiting slot A is provided on the inner side of the limit frame, and both sides of the outer gear ring are provided with a limiting plate A that forms a sliding structure with the limiting slot A, and the limiting plate A is arranged to be an inverted "T" shaped structure.

[0010] Preferably, the inner surface of the outer gear ring is provided with a clamping cylinder, the outer surface of the filter screen cylinder is provided with a groove cylinder, and the outer gear ring and the filter screen cylinder form a clamping structure through the clamping cylinder and the groove cylinder.

[0011] Preferably, a knocking mechanism is provided on the inner side of the pipe B, and the knocking mechanism consists of an inner ring gear, a ring gear frame, a gear disc B, a side plate, a support shaft, a rotating frame, a limit frame, a knocking frame, a guide rod A, a guide groove A, a guide rod B, a guide groove B, a limit plate B and a limit groove B. The outer side of the gear disc A is meshed with the inner ring gear, and ring gear frames are provided on both sides of the inner ring gear.

[0012] Preferably, side plates are provided at both ends of the inner side of the pipe B, and the interior of the side plate is rotatably connected to a support shaft through a bearing, and a gear disk B meshingly connected to the gear ring frame is provided on the side of the support shaft close to the inner ring gear, and a rotating frame is provided on the side of the support shaft away from the inner ring gear, and a limit frame slidably connected to the rotating frame is provided on one side of the side plate, and one side of the side plate is rotatably connected to the knocking frame through a hinge seat.

[0013] Preferably, a limiting plate B is provided on the side of the side plate close to the ring gear frame, a limiting groove B is provided on the side of the ring gear frame close to the side plate, and the side of the side plate away from the ring gear frame is provided with a guide groove B, one end of the limiting frame is provided with a guide rod B that forms a sliding structure with the guide groove B, a guide groove A is provided on the end of the knocking frame close to the limiting frame, and a guide rod A that forms a sliding structure with the guide groove A is provided on the end of the limiting frame close to the knocking frame.

[0014] Preferably, a displacement mechanism is provided between the pipes B, C and the water pool and dry sludge pool. The displacement mechanism consists of a base, a top plate, a support groove, an electric push rod, a support plate, a hydraulic cylinder and a mounting plate. The bottom ends of the pipes B and C are both provided with bases, and the bottom ends of the bases are symmetrically provided with support plates.

[0015] Preferably, mounting plates are provided at both ends of the water pool, a hydraulic cylinder is installed on the top of the mounting plate, a top plate is provided on the top of the hydraulic cylinder and the dry sludge pool, a support groove is provided inside the top plate to form a sliding structure with the support plate, and an electric push rod is installed between the support plate and the support groove.

[0016] A sludge dewatering method comprises the following steps:

[0017] S1. Make the bottom of the wet sludge tank higher than the top of the water tank and the dry sludge tank;

[0018] S2. Install the filter screen cartridge in pipe B, connect one end of pipe A to the bottom of the wet sludge tank, and extend the other end of pipe A into pipe B and connect it to the filter screen cartridge. Extend one end of pipe C into pipe B and connect it to the filter screen cartridge, with the opening of one end of pipe B matching the opening of the tank, and the opening of one end of pipe C matching the opening of the dry sludge tank.

[0019] S3. The sludge water in the wet sludge tank flows into pipe A due to gravity and continues to flow towards pipe B;

[0020] S4. The sludge water flowing into pipe B is transported to the right through the dehydration mechanism and cooperates with the filter cylinder to squeeze and dehydrate the wet sludge water. The dehydrated water flows into the water pool through the opening at one end of pipe B, and the dry sludge is pushed further toward pipe C so as to fall into the dry sludge pool.

[0021] Compared with the prior art, the present invention has the following beneficial effects:

[0022] 1. The present invention is provided with a rotating mechanism. Since the filter cylinder and the outer gear ring are clamped together by the clamping cylinder and the groove cylinder, the filter cylinder and the outer gear ring form an integrated structure. Since the outer gear ring is meshed and connected with the gear disc A, and the outer gear ring is slidably connected with the limit frame through the limit plate A and the limit groove A, when the output end of the driving motor drives the rotating shaft and the gear disc A to rotate, the outer gear ring and the filter cylinder rotate together, so that the sludge and impurities on the surface of the filter cylinder can be subjected to the effect of centrifugal force, which helps to throw out the materials blocked in the mesh holes, thereby restoring the permeability of the filter cylinder, and at the same time, the sludge can be more evenly distributed in the filter cylinder, avoiding serious local blockage, thereby improving the dewatering efficiency of the sludge dewatering equipment.

[0023] 2. The present invention is provided with a knocking mechanism. Since the inner ring gear is meshed with the gear disc A, and the gear ring frame is slidably connected to the side plate through the limit plate A and the limit groove B, when the gear disc A rotates, the inner ring gear and the gear ring frame rotate together. Since the gear disc B is meshed with the gear ring frame, the gear disc B, the support shaft and the rotating frame rotate together. Since the limit frame is slidably connected to the side plate through the guide rod B and the guide groove B, the limit frame moves back and forth in the horizontal direction. Since the limit frame and the knocking frame are slidably connected through the guide rod A and the guide groove A, the knocking frame is rotatably connected to the side plate through the hinge seat, so that the knocking frame swings back and forth with the hinge seat as the axis, thereby realizing the knocking operation of the filter cylinder through the knocking frame and generating vibration to help shake off the stubborn sludge and impurities attached to the filter cylinder. At the same time, it can also cause the filter cylinder to produce a slight deformation, which helps to break the adhesion between the blockage and the filter cylinder and further clear the blockage.

[0024] 3. The present invention is provided with a displacement mechanism. Since the base and the top plate are slidably connected through the support groove and the support plate, when the filter screen cartridge needs to be disassembled and replaced, the electric push rod is operated and extended to separate pipe B from pipe A, pipe C from pipe B, and the hydraulic cylinder is operated and extended, so that one top plate can be lifted to dislocate pipe B from pipe A and pipe C. This makes it easy to remove the filter screen cartridge from pipe B by pulling it outward after removing the rear cover for replacement, thereby ensuring continuous optimization of the dehydration effect. At the same time, the convenience of use is greatly improved, the complexity and time cost of the maintenance process are reduced, and the entire dehydration process is more efficient and smooth. BRIEF DESCRIPTION OF THE DRAWINGS

[0025] Figure 1 It is a schematic diagram of the three-dimensional structure of the present invention;

[0026] Figure 2This is a three-dimensional cutaway exploded view of the dehydration mechanism and the filter cylinder of the present invention;

[0027] Figure 3 Schematic diagram of the three-dimensional structure of the rotating mechanism of the present invention;

[0028] Figure 4 This is a three-dimensional exploded view of the cartridge and the grooved barrel of the present invention;

[0029] Figure 5 Schematic diagram of the three-dimensional structure of the knocking mechanism of the present invention;

[0030] Figure 6 For the present invention Figure 5 A in the middle is an enlarged structural diagram;

[0031] Figure 7 It is a three-dimensional exploded view of the displacement mechanism of the present invention;

[0032] Figure 8 It is a front cutaway view of the present invention.

[0033] In the figure: 1. Wet sludge tank; 2. Pipe A; 3. Pipe B; 4. Pipe C; 5. Dehydration mechanism; 501. Drive motor; 502. Bevel gear set; 503. Screw extrusion element; 504. Clamping groove; 505. Clamping bracket; 6. Filter cylinder; 7. Rotating mechanism; 701. Limiting bracket; 702. Rotating motor; 703. Rotating shaft; 704. Tooth disc A; 705. Outer gear ring; 706. Limiting groove A; 707. Limiting plate A; 708. Clamping barrel; 709. Grooved barrel; 8. Tapping mechanism; 801. Inner gear ring; 802. Gear ring Frame; 803, gear disc B; 804, side plate; 805, support shaft; 806, rotating frame; 807, limit frame; 808, knocking frame; 809, guide rod A; 810, guide slot A; 811, guide rod B; 812, guide slot B; 813, limit plate B; 814, limit slot B; 9, displacement mechanism; 901, base; 902, top plate; 903, support slot; 904, electric push rod; 905, support plate; 906, hydraulic cylinder; 907, mounting plate; 10, rear cover; 11, water tank; 12, dry sludge tank. DETAILED DESCRIPTION

[0034] The following will clearly and completely describe the technical solutions in the embodiments of the present invention in conjunction with the accompanying drawings. Obviously, the described embodiments are only part of the embodiments of the present invention, not all of the embodiments. Based on the embodiments of the present invention, all other embodiments obtained by ordinary technicians in this field without making creative efforts are within the scope of protection of the present invention.

[0035] See also Figure 1-Figure 3 and Figure 8The present invention provides a technical solution: a sludge dewatering device, comprising a wet sludge tank 1, a water tank 11 and a dry sludge tank 12, the wet sludge tank 1, the water tank 11 and the dry sludge tank 12 are arranged in sequence from left to right, a pipe B3 and a pipe C4 are respectively arranged above the water tank 11 and the dry sludge tank 12, a pipe A2 extending to the inner side of the pipe B3 is arranged at the bottom end of one side of the wet sludge tank 1, a rear cover 10 is arranged on one side of the pipe B3, a filter screen cylinder 6 is arranged through the inner side of the pipe B3 and the rear cover 10, and the pipe B3 and the filter screen cylinder 6 and the inner side of the rear cover 10 are connected. A dehydration mechanism 5 is provided on the side of the filter cylinder 6. The dehydration mechanism 5 includes a spiral extrusion member 503 located inside the filter cylinder 6. The space between the spiral extrusion member 503 and the filter cylinder 6 decreases from left to right. A drive motor 501 is installed on the top of the pipe B3 through a stand. The outer surface of the output end of the drive motor 501 and the outer surface of one end of the spiral extrusion member 503 are connected to a bevel gear set 502. The other end of the spiral extrusion member 503 is provided with a slot 504. The inner side of the rear cover plate 10 is connected to a bracket 505 that forms a snap-fit structure with the slot 504 through a bearing.

[0036] See Figure 1-Figure 3 and Figure 8 It can be seen that the sludge water flows into the pipe A2 due to gravity and continues to flow toward the pipe B3. At the same time, the drive motor 501 and the rotating motor 702 are started, so that the output end of the drive motor 501 drives the spiral extrusion member 503 to rotate under the action of the bevel gear set 502, so that the wet sludge water can be transported to the right through the spiral extrusion member 503 and cooperate with the filter drum 6 to achieve the extrusion and dehydration of the wet sludge water. The desorbed water flows into the water pool 11 through the opening at one end of the pipe B3, and the dry sludge is continued to be pushed toward the pipe C4 so as to fall into the dry sludge pool 12. In this process, the rotation direction of the spiral extrusion member 503 is opposite to that of the filter drum 6. When the bracket 505 and the card slot 504 are in the engaged state, the spiral extrusion member 503 can be supported by the pipe B3 and the rear cover plate 10 to improve the stability of the spiral extrusion member 503.

[0037] See Figure 1-Figure 5 and Figure 8It can be seen that a rotating mechanism 7 is provided on the inner side of the pipe B3, and the rotating mechanism 7 includes a limit frame 701, a rotating motor 702, a rotating shaft 703, a toothed disc A704, an outer gear ring 705, a limit groove A706, a limit plate A707, a cartridge 708 and a grooved cylinder 709. A limit frame 701 is provided on the inner side of the pipe B3, and an outer gear ring 705 movably connected to the limit frame 701 is engaged on the outer side of the filter cylinder 6. The top of the outer gear ring 705 is meshed with the toothed disc A704, and the inner side of the limit frame 701 is rotatably connected to the toothed disc A704 through a bearing. A rotating shaft 703 is provided on one side of the limiting frame 701, and a rotating motor 702 connected to the rotating shaft 703 through a coupling is installed. A limiting groove A706 is provided on the inner side of the limiting frame 701. Limiting plates A707 that form a sliding structure with the limiting groove A706 are provided on both sides of the outer gear ring 705, and the limiting plates A707 are arranged in an inverted "T" shape. A clamping cylinder 708 is provided on the inner surface of the outer gear ring 705, and a groove cylinder 709 is provided on the outer surface of the filter screen cylinder 6. The outer gear ring 705 and the filter screen cylinder 6 form a clamping structure through the clamping cylinder 708 and the groove cylinder 709.

[0038] See Figure 2-Figure 5 It can be seen that since the filter screen cylinder 6 and the outer gear ring 705 are clamped together by the clamping cylinder 708 and the groove cylinder 709, the filter screen cylinder 6 and the outer gear ring 705 form an integrated structure. Since the outer gear ring 705 is meshed and connected with the toothed disc A704, and the outer gear ring 705 is slidably connected with the limit frame 701 through the limit plate A707 and the limit groove A706, when the output end of the driving motor 501 drives the rotating shaft 703 and the toothed disc A704 to rotate, the outer gear ring 705 and the filter screen cylinder 6 rotate together, so that the sludge and impurities on the surface of the filter screen cylinder 6 can be subjected to the effect of centrifugal force, which helps to throw out the materials blocked in the mesh, thereby restoring the permeability of the filter screen cylinder 6, and at the same time, the sludge can be more evenly distributed in the filter screen cylinder 6, avoiding serious local blockage, thereby improving the dewatering efficiency of the sludge dewatering equipment.

[0039] See Figure 5 and Figure 6It can be seen that a knocking mechanism 8 is provided on the inner side of the pipe B3, and the knocking mechanism 8 consists of an inner ring gear 801, a ring gear frame 802, a toothed disc B803, a side plate 804, a support shaft 805, a rotating frame 806, a limit frame 807, a knocking frame 808, a guide rod A809, a guide groove A810, a guide rod B811, a guide groove B812, a limit plate B813 and a limit groove B814. The outer side of the toothed disc A704 is meshed with the inner ring gear 801, and the ring gear frames 802 are provided on both sides of the inner ring gear 801. Side plates 804 are provided at both ends of the inner side of the pipe B3, and the interior of the side plate 804 is rotatably connected to the support shaft 805 through a bearing. The side of the support shaft 805 close to the inner ring gear 801 is provided with a toothed disc B803 meshed with the ring gear frame 802, and the support shaft 805 is away from the inner ring gear 801. A rotating frame 806 is provided on one side, a limiting frame 807 slidably connected to the rotating frame 806 is provided on one side of the side plate 804, a knocking frame 808 is rotatably connected to one side of the side plate 804 through a hinge seat, a limiting plate B813 is provided on the side of the side plate 804 close to the ring gear frame 802, a limiting groove B814 is provided on the side of the ring gear frame 802 close to the side plate 804 to form a sliding structure with the limiting plate B813, a guide groove B812 is provided on the side of the side plate 804 away from the ring gear frame 802, a guide rod B811 is provided on one end of the limiting frame 807 to form a sliding structure with the guide groove B812, a guide groove A810 is provided on one end of the knocking frame 808 close to the limiting frame 807, and a guide rod A809 is provided on the end of the limiting frame 807 close to the knocking frame 808 to form a sliding structure with the guide groove A810;

[0040] See Figure 3 、 Figure 5 and Figure 6 It can be seen that since the inner gear ring 801 is meshed with the gear disc A704, and the gear ring frame 802 is slidably connected to the side plate 804 through the limit plate A707 and the limit groove B814, when the gear disc A704 rotates, the inner gear ring 801 and the gear ring frame 802 rotate together. Since the gear disc B803 is meshed with the gear ring frame 802, the gear disc B803, the support shaft 805 and the rotating frame 806 rotate together. Since the limit frame 807 is slidably connected to the side plate 804 through the guide rod B811 and the guide groove B812, the limit frame 807 moves forward in the horizontal direction. After moving, since the limit frame 807 and the knocking frame 808 are slidingly connected through the guide rod A809 and the guide groove A810, the knocking frame 808 is rotatably connected to the side plate 804 through the hinge seat, so that the knocking frame 808 swings back and forth with the hinge seat as the axis, thereby realizing the knocking operation of the filter screen cylinder 6 through the knocking frame 808, and generating vibration to help shake off the stubborn sludge and impurities attached to the filter screen cylinder 6, and at the same time, it can also cause the filter screen cylinder 6 to produce a slight deformation, which helps to break the adhesion between the blockage and the filter screen cylinder 6 and further clear the blockage.

[0041] See Figure 1 、 Figure 7 and Figure 8 It can be seen that a displacement mechanism 9 is provided between the pipe B3, the pipe C4 and the water pool 11 and the dry sludge pool 12. The displacement mechanism 9 consists of a base 901, a top plate 902, a support groove 903, an electric push rod 904, a support plate 905, a hydraulic cylinder 906 and a mounting plate 907. The bottom ends of the pipes B3 and C4 are both provided with a base 901, and the bottom ends of the bases 901 are symmetrically provided with support plates 905. Both ends of the water pool 11 are provided with mounting plates 907. The top of the mounting plate 907 is provided with a hydraulic cylinder 906. The top of the hydraulic cylinder 906 and the top of the dry sludge pool 12 are both provided with a top plate 902. The interior of the top plate 902 is provided with a support groove 903 that forms a sliding structure with the support plate 905. An electric push rod 904 is installed between the support plate 905 and the support groove 903.

[0042] See Figure 1 and Figure 7 It can be seen that since the base 901 and the top plate 902 are slidably connected through the support groove 903 and the support plate 905, when the filter screen cartridge 6 needs to be disassembled and replaced, the electric push rod 904 is operated and extended, so that the pipe B3 is separated from the pipe A2, and the pipe C4 is separated from the pipe B3, and the hydraulic cylinder 906 is operated and extended, so that it is possible to lift one top plate 902 so that the pipe B3 is misaligned with the pipe A2 and the pipe C4, so that after the rear cover 10 is removed, the filter screen cartridge 6 can be pulled outward and removed from the pipe B3 for replacement, thereby ensuring the continuous optimization of the dehydration effect. At the same time, it greatly improves the convenience of use, reduces the complexity and time cost of the maintenance process, and makes the entire dehydration process more efficient and smooth.

[0043] See also Figure 1 、 Figure 2 、 Figure 3 、 Figure 5 and Figure 8 , a sludge dewatering method comprising the following steps:

[0044] S1, make the bottom of the wet sludge tank 1 higher than the top of the water tank 11 and the dry sludge tank 12;

[0045] S2. Install the filter screen cartridge 6 in pipe B3, connect one end of pipe A2 to the bottom end of the wet sludge tank 1, and extend the other end of pipe A2 into pipe B3 and connect it to the filter screen cartridge 6. Extend one end of pipe C4 into pipe B3 and connect it to the filter screen cartridge 6, with the opening of one end of pipe B3 matching the opening of the water tank 11, and the opening of one end of pipe C4 matching the opening of the dry sludge tank 12.

[0046] S3. The sludge water in the wet sludge tank 1 flows into the pipe A2 due to gravity and continues to flow towards the pipe B3;

[0047] S4. The sludge water flowing into pipe B3 is transported to the right through the dehydration mechanism 5 and cooperates with the filter cylinder 6 to squeeze and dehydrate the wet sludge water. The dehydrated water flows into the water pool 11 through the opening at one end of pipe B3, and the dry sludge is pushed further toward pipe C4 so as to fall into the dry sludge pool 12.

[0048] Working principle: When using the sludge dewatering equipment, make the bottom of the wet sludge pool 1 higher than the top of the water pool 11 and the dry sludge pool 12, then install the filter screen cartridge 6 in the pipe B3, and connect one end of the pipe A2 to the bottom of the wet sludge pool 1, and the other end extends into the pipe B3 and is connected to the filter screen cartridge 6, then extend one end of the pipe C4 into the pipe B3 and is connected to the filter screen cartridge 6, and the opening of one end of the pipe B3 is adapted to the opening of the water pool 11, and the opening of one end of the pipe C4 is adapted to the opening of the dry sludge pool 12. At this time, the sludge water Due to gravity, the water flows into pipe A2 and continues to flow toward pipe B3. At the same time, the drive motor 501 and the rotary motor 702 are started, so that the output end of the drive motor 501 drives the screw extrusion member 503 to rotate under the action of the bevel gear set 502. As a result, the screw extrusion member 503 can transport the wet sludge water to the right and cooperate with the filter cylinder 6 to squeeze and dehydrate the wet sludge water. The dewatered water flows into the water tank 11 through the opening at one end of the pipe B3, and the dry sludge is pushed further toward pipe C4 to fall into the dry sludge tank 12.

[0049] During this process, the output end of the driving motor 501 drives the rotating shaft 703 and the toothed disc A704 to rotate. The outer gear ring 705 rotates together through the meshing action of the outer gear ring 705 and the toothed disc A704 and the sliding action with the limiting frame 701. The clamping action of the clamping cylinder 708 and the groove cylinder 709 makes the filter cylinder 6 and the outer gear ring 705 form an integrated structure, so that the filter cylinder 6 rotates together, and the sludge and impurities on the surface of the filter cylinder 6 are subjected to the centrifugal force, which helps to throw out the substances blocked in the mesh, thereby restoring the permeability of the filter cylinder 6. At the same time, the sludge can be more evenly distributed in the filter cylinder 6 to avoid serious local blockage.

[0050] At the same time, through the meshing action of the inner ring gear 801 and the gear disc A704 and the sliding action of the gear ring frame 802 and the side plate 804, the inner ring gear 801 and the gear ring frame 802 rotate together, and through the meshing action of the gear disc B803 and the gear ring frame 802, the gear disc B803, the support shaft 805 and the rotating frame 806 rotate together. Through the sliding action of the limit frame 807 and the side plate 804, the limit frame 807 moves back and forth in the horizontal direction. Through the sliding action of the limit frame 807 and the knocking frame 808 and the rotation action of the knocking frame 808 and the side plate 804, the knocking frame 808 swings back and forth with the hinge seat as the axis, thereby realizing the knocking operation of the filter cylinder 6 through the knocking frame 808, and generating vibration to help shake off the stubborn sludge and impurities attached to the filter cylinder 6. The content not described in detail in this description belongs to the existing technology known to professional and technical personnel in this field.

[0051] Although the present invention has been described in detail with reference to the aforementioned embodiments, it is still possible for those skilled in the art to modify the technical solutions described in the aforementioned embodiments, or to make equivalent substitutions for some of the technical features therein. Any modifications, equivalent substitutions, improvements, etc. made within the spirit and principles of the present invention should be included in the scope of protection of the present invention.

Claims

1. A sludge dewatering device, comprising a wet sludge tank (1), a water tank (11) and a dry sludge tank (12), characterized in that: The wet sludge pool (1), the water pool (11) and the dry sludge pool (12) are arranged in sequence from left to right. A pipe B (3) and a pipe C (4) are respectively arranged above the water pool (11) and the dry sludge pool (12). A pipe A (2) extending to the inner side of the pipe B (3) is arranged at the bottom end of one side of the wet sludge pool (1). A rear cover (10) is arranged on one side of the pipe B (3). A filter cylinder (6) is arranged through the inner side of the pipe B (3) and the rear cover (10). A dehydration mechanism (5) is arranged through the inner side of the pipe B (3), the filter cylinder (6) and the rear cover (10). The dehydration mechanism (5) includes a spiral extrusion member (503) located inside the filter cylinder (6). A rotating mechanism (7) is provided on the inner side of the pipeline B (3), and the rotating mechanism (7) comprises a limiting frame (701), a rotating motor (702), a rotating shaft (703), a toothed disc A (704), an outer toothed ring (705), a limiting groove A (706), a limiting plate A (707), a clamping cylinder (708) and a groove cylinder (709). The limiting frame (701) is provided on the inner side of the pipeline B (3), and the outer side of the filter screen cylinder (6) is engaged with an outer toothed ring (705) movably connected to the limiting frame (701), and the top end of the outer toothed ring (705) is meshedly connected to the toothed disc A (704), and the inner side of the limiting frame (701) is rotatably connected to the rotating shaft (703) welded to the toothed disc A (704) through a bearing.

2. The sludge dewatering equipment according to claim 1, characterized in that: A driving motor (501) is mounted on the top end of the pipe B (3) via a stand. The outer surface of the output end of the driving motor (501) and the outer surface of one end of a spiral extrusion piece (503) are connected to a bevel gear set (502). A clamping groove (504) is provided at the other end of the spiral extrusion piece (503). A clamping frame (505) is connected to the inner side of the rear cover plate (10) via a bearing and forms a clamping structure with the clamping groove (504).

3. The sludge dewatering equipment according to claim 1, characterized in that: A rotating motor (702) connected to a rotating shaft (703) via a coupling is installed on one side of the limiting frame (701), a limiting slot A (706) is provided on the inner side of the limiting frame (701), and limiting plates A (707) forming a sliding structure with the limiting slot A (706) are provided on both sides of the outer gear ring (705), and the limiting plates A (707) are arranged in an inverted "T" shape.

4. The sludge dewatering equipment according to claim 3, characterized in that: The inner surface of the outer gear ring (705) is provided with a clamping cylinder (708), and the outer surface of the filter screen cylinder (6) is provided with a groove cylinder (709). The outer gear ring (705) and the filter screen cylinder (6) form a clamping structure through the clamping cylinder (708) and the groove cylinder (709).

5. The sludge dewatering equipment according to claim 1, characterized in that: A knocking mechanism (8) is provided on the inner side of the pipe B (3), and the knocking mechanism (8) is composed of an inner gear ring (801), a gear ring frame (802), a toothed disc B (803), a side plate (804), a support shaft (805), a rotating frame (806), a limiting frame (807), a knocking frame (808), a guide rod A (809), a guide groove A (810), a guide rod B (811), a guide groove B (812), a limiting plate B (813) and a limiting groove B (814). The outer side of the toothed disc A (704) is meshedly connected with the inner gear ring (801), and the gear ring frame (802) is provided on both sides of the inner gear ring (801).

6. The sludge dewatering equipment according to claim 5, characterized in that: Both ends of the inner side of the pipe B (3) are provided with side plates (804), the interior of the side plates (804) is rotatably connected to a support shaft (805) through a bearing, a toothed disc B (803) meshingly connected to a gear ring frame (802) is provided on the side of the support shaft (805) close to the inner gear ring (801), a rotating frame (806) is provided on the side of the support shaft (805) away from the inner gear ring (801), a limiting frame (807) slidably connected to the rotating frame (806) is provided on one side of the side plates (804), and a knocking frame (808) is rotatably connected to one side of the side plates (804) through a hinge seat.

7. The sludge dewatering equipment according to claim 5, characterized in that: A limiting plate B (813) is provided on the side of the side plate (804) close to the gear ring frame (802), a limiting groove B (814) is provided on the side of the gear ring frame (802) close to the side plate (804) to form a sliding structure with the limiting plate B (813), a guide groove B (812) is provided on the side of the side plate (804) away from the gear ring frame (802), one end of the limiting frame (807) is provided with a guide rod B (811) to form a sliding structure with the guide groove B (812), one end of the knocking frame (808) close to the limiting frame (807) is provided with a guide groove A (810), and one end of the limiting frame (807) close to the knocking frame (808) is provided with a guide rod A (809) to form a sliding structure with the guide groove A (810).

8. The sludge dewatering equipment according to claim 1, characterized in that: A displacement mechanism (9) is provided between the pipe B (3), the pipe C (4) and the water pool (11) and the dry sludge pool (12). The displacement mechanism (9) is composed of a base (901), a top plate (902), a support groove (903), an electric push rod (904), a support plate (905), a hydraulic cylinder (906) and a mounting plate (907). The bottom ends of the pipe B (3) and the pipe C (4) are both provided with a base (901), and the bottom ends of the bases (901) are both symmetrically provided with support plates (905).

9. The sludge dewatering equipment according to claim 8, characterized in that: Both ends of the water pool (11) are provided with mounting plates (907), the top of the mounting plates (907) is provided with a hydraulic cylinder (906), the top of the hydraulic cylinder (906) and the top of the dry sludge pool (12) are both provided with a top plate (902), the interior of the top plate (902) is provided with a support groove (903) which forms a sliding structure with a support plate (905), and an electric push rod (904) is installed between the support plate (905) and the support groove (903).

10. A sludge dewatering method, using the sludge dewatering equipment according to claim 1, characterized in that: The steps include: S1, making the bottom of the wet sludge pool (1) higher than the top of the water pool (11) and the dry sludge pool (12); S2. Install the filter screen cartridge (6) in the pipe B (3), connect one end of the pipe A (2) to the bottom end of the wet sludge pool (1), and extend the other end of the pipe A (2) into the pipe B (3) and connect it to the filter screen cartridge (6). Extend one end of the pipe C (4) into the pipe B (3) and connect it to the filter screen cartridge (6), and make the opening of one end of the pipe B (3) match the opening of the water pool (11), and the opening of one end of the pipe C (4) match the opening of the dry sludge pool (12); S3. The sludge water in the wet sludge tank (1) flows into pipe A (2) due to gravity and continues to flow towards pipe B (3); S4. The sludge water flowing into the pipe B (3) is transported to the right side through the dehydration mechanism (5) and cooperates with the filter cylinder (6) to squeeze and dehydrate the wet sludge water. The dehydrated water flows into the water pool (11) through the opening at one end of the pipe B (3), and the dry sludge is pushed further toward the pipe C (4) so as to fall into the dry sludge pool (12).

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