A sludge flattening and drying device for urban sewage treatment

Abstract

The present invention discloses a sludge flattening and drying device for urban sewage treatment, comprising a filtering structure and a flattening and drying structure arranged on one side of the filtering structure, the filtering structure comprising a filtering box with an open top, a filtering assembly for filtering sludge is arranged at the bottom of the inner cavity of the filtering box, lifting assemblies for lifting the filtering assembly are respectively arranged on two sides of the outside of the filtering box, and an outlet is opened through the top of one side of the filtering box; the present invention arranges a plurality of flattening frames, so that more sludge can be loaded and taken at one time, and the subsequent drying efficiency of the sludge is improved, and only one servo motor is needed to lift the plurality of flattening frames, so that the energy consumption is reduced, and the spreading plate is arranged tilted, so that when the sludge flows out from the outlet into the flattening chute, the sludge will flow in the flattening chute under the action of gravity, and then the sludge can be flattened in the flattening chute without the need for external force.

Description

Technical Field

[0001] The invention relates to the technical field related to sewage treatment, and in particular to a sludge flattening and drying device for urban sewage treatment. Background Art

[0002] Wastewater treatment is the process of purifying sewage so that it meets the water quality requirements for discharge into a water body or reuse; sewage treatment is widely used in various fields such as construction, agriculture, transportation, energy, petrochemicals, environmental protection, urban landscape, medical care, catering, etc., and is increasingly entering the daily lives of ordinary people.

[0003] Sewage treatment usually involves separating sludge and sewage through a filtration device. However, during the sedimentation and filtration of sludge, as the sludge continues to accumulate, the pressure on the filter plate becomes greater and greater. If it is not cleaned in time, it will not only damage the filter plate, but also affect the filtering effect of the filter plate.

[0004] For example, the patent publication number CN202110084675.9 provides a sludge flattening and drying device for urban sewage treatment, including an oven, a hollow boss is provided on the top of the hollow boss, a feeding device is provided on one side of the feeding device, a heating device is provided at one end of the oven, an exhaust pipe is provided at the end of the top of the oven away from the heating device, two mud drawers are provided in parallel up and down inside the oven, and two groups of pull-out assemblies are provided in parallel up and down on the outer walls at both ends of the oven, a pressing plate is provided inside the oven, a through opening is opened in the center of the pressing plate, L-shaped clips are symmetrically fixed on the top of both sides of the through opening, two shielding plates are slidably connected in the two L-shaped clips, one end of the two shielding plates is connected to a second telescopic rod, and third telescopic rods are vertically fixed one by one at the four top corners of the top of the oven, and the four third telescopic rod output shafts are all connected to the pressing plate. The present invention can not only improve the processing efficiency of sludge drying and save energy loss, but also simplify the discharging method and reduce the labor intensity of the staff. However, the drying device needs to be used with multiple telescopic rods to realize the loading of two mud drawers. If multiple mud drawers are added, more telescopic rods are needed to cooperate, which increases the energy consumption and raises the cost. After the sludge drying is completed, the dried sludge in the mud drawer needs to be removed by external equipment, which is inconvenient to operate. Summary of the invention

[0005] In order to solve the defects of the prior art, the present invention provides a sludge flattening and drying device for urban sewage treatment.

[0006] In order to solve the above technical problems, the present invention provides the following technical solutions:

[0007] The present invention discloses a sludge flattening and drying device for treating urban sewage, comprising a filtering structure and a flattening and drying structure arranged on one side of the filtering structure, wherein the filtering structure comprises a filtering box with an open top, a filtering assembly for filtering sludge is arranged at the bottom of the inner cavity of the filtering box, and lifting assemblies for lifting the filtering assembly are arranged on both sides of the outside of the filtering box respectively, an outlet is opened through the top of one side of the filtering box, and a pushing assembly for pushing the sludge is arranged on the other side of the filtering box corresponding to the outlet, a discharge channel is arranged at the bottom end of the filtering box, and a conveying pipe is arranged at the bottom end of the discharge channel;

[0008] The drying structure comprises a drying box, a flattening assembly is arranged in the drying box, an adjusting assembly for adjusting the position and height of the flattening assembly is arranged at the bottom of the drying box, and drying assemblies are arranged opposite to each other on both sides of the drying box.

[0009] As a preferred technical solution of the present invention, the filter assembly includes a filter screen, connecting blocks are arranged on both sides of the filter screen, an installation groove is opened on the inner side of the connecting block, and a mounting block is arranged in the mounting groove in a matching manner, the two mounting blocks are respectively fixedly arranged on both sides of the filter screen, and the mounting blocks are fixedly connected to the connecting blocks by fixing screws, and a fixing ear is fixedly arranged in the middle of the top of the connecting block.

[0010] As a preferred technical solution of the present invention, the lifting assembly includes a winding wheel and a guide wheel, the winding wheel is fixedly arranged on the outside of the filter box, a driving motor for driving the winding wheel is fixedly arranged on the filter box, and a traction rope is wound on the outside of the winding wheel, the guide wheel is fixedly arranged on the inside of the filter box, and the movable end of the traction rope is passed around the guide wheel and connected to the fixed ear.

[0011] As a preferred technical solution of the present invention, the pushing assembly includes a pushing plate, which is cooperated and placed in a groove that is penetrated through the filter box, and two cylinders are arranged on the back side of the pushing plate, the output end of the cylinder is fixedly connected to the pushing plate, and two mounting bodies are fixedly arranged on the outside of the cylinder, the bottom ends of the four mounting bodies are connected to the same support plate, and a mounting plate is fixedly arranged on the inner side of the support plate, and the mounting plate is fixedly connected to the filter box by fixing screws.

[0012] As a preferred technical solution of the present invention, a snap-in groove is provided at the bottom end of the pushing plate, a mounting seat is slidably arranged in the snap-in groove, three spring blocks are equidistantly arranged at the top of the mounting seat, one end of the spring block is fixedly connected to the inner wall of the snap-in groove, a steel brush is provided at the bottom end of the mounting seat, and limiting sliders are fixedly arranged on both sides of the mounting seat, and the limiting sliders are slidably arranged in the limiting sliding grooves provided on both sides of the snap-in groove.

[0013] As a preferred technical solution of the present invention, the flattening assembly includes a U-shaped mounting frame, which is placed in a drying box in a coordinated manner, and a group of flattening structures are arranged equidistantly on the inner side of the mounting frame along the vertical direction, and the flattening structure includes a flattening frame, and a flattening plate is arranged obliquely at the bottom of the flattening frame, and the flattening plate forms a flattening inclined groove between the flattening frames, and limiting blocks are fixedly provided on both sides of the flattening frame, and the limiting blocks are slidably provided in the limiting grooves opened on the mounting frame in a coordinated manner, a handle is fixedly provided on one side of the flattening frame, and an inverted T-shaped limiting plug is fixedly provided on the other side of the flattening frame, and the limiting plug is matched and placed in the limiting slots opened on the filter box.

[0014] As a preferred technical solution of the present invention, the adjustment component includes a fixed seat, which is fixedly arranged in the middle of the bottom end of the drying box, and fixed rods are fixedly arranged at the four corners of the bottom end of the fixed seat, the bottom ends of the four fixed rods are fixedly connected to the same connecting plate, a servo motor is fixedly arranged at the bottom end of the connecting plate, a screw rod is rotatably arranged at the top end of the connecting plate, and the output end of the servo motor is fixedly connected to the bottom end of the screw rod.

[0015] As a preferred technical solution of the present invention, the outside of the screw rod is threadedly connected with a lifting sleeve, the top of the lifting sleeve passes through the drying box and is fixed with a support seat, the support seat is fixed in the middle of the bottom end of the mounting frame, and the outer wall of the lifting sleeve is equidistantly provided with a group of limiting slide bars along the circumferential direction, and the limiting slide bars are slidably provided in the slide bar grooves opened on the fixed seat.

[0016] As a preferred technical solution of the present invention, the drying component includes a blower, which is fixedly arranged on the outside of the drying box, and a group of electric heating wires are arranged at the air outlet of the blower, and the interior of the outer panel constituting the drying box is arranged to be a hollow structure, and the hollow structure is connected with the blower to form an air blast channel, and an air outlet is provided on the inner side of the drying box along the vertical direction and connected with the air blast channel, and the air outlet is arranged corresponding to the flattening frame.

[0017] The beneficial effects of the present invention are:

[0018] 1. The sludge flattening and drying device for urban sewage treatment can realize one-time loading and unloading of more sludge by setting a plurality of flattening frames, thereby improving the subsequent drying efficiency of the sludge, and only one servo motor is needed to lift the plurality of flattening frames, so that the energy consumption is reduced with less energy consumption, and the flattening plate is set at an angle, so that when the sludge flows out from the outlet into the flattening chute, the sludge will flow in the flattening chute under the action of gravity, and thus the sludge can be flattened in the flattening chute without the need for external force, and the limit plug is provided, when the flattening frame moves upward, the limit plug will be matched and inserted in the limit slot, which can improve the position stability of the flattening frame when it moves upward, and at the same time, when the sludge flows into the flattening chute, the position of the flattening frame can be horizontally limited to prevent the flattening frame from sliding out of the limit slot.

[0019] 2. In this sludge flattening and drying device for urban sewage treatment, when the sludge on the filter screen approaches the bottom, the movement of the push plate will drive the steel brush to contact the filter screen, and the sludge attached to the filter screen can be cleaned by the steel brush, which can reduce the possibility of clogging of the filter screen. Moreover, through the provided spring block, when the interaction between the steel brush and the filter screen is strong, the elastic action of the spring block can make the steel brush shrink upward, which can reduce the force between the steel brush and the filter screen and protect the steel brush and the filter screen.

[0020] 3. In this type of sludge flattening and drying device for urban sewage treatment, the blower can blow the hot air generated by the electric heating wire into the blast channel, and then the hot air is ejected through the blast port. Since the blast port corresponds to the flattening frame, the hot air can just be sprayed onto the sludge in the flattening chute, thereby achieving rapid drying of the sludge. When the sludge drying is completed, the lifting sleeve pushes the mounting frame upward again, and then the staff can pull the handle to remove the flattening frames from the mounting frame one by one, and the operation is relatively convenient and quick. BRIEF DESCRIPTION OF THE DRAWINGS

[0021] The accompanying drawings are used to provide a further understanding of the present invention and constitute a part of the specification. Together with the embodiments of the present invention, they are used to explain the present invention and do not constitute a limitation of the present invention. In the accompanying drawings:

[0022] Figure 1 It is a schematic diagram of the connection structure of the filtering structure and the drying structure of a sludge flattening and drying device for urban sewage treatment of the present invention;

[0023] Figure 2 It is a schematic diagram of the filtering structure of a sludge flattening and drying device for urban sewage treatment according to the present invention;

[0024] Figure 3 It is a schematic diagram of the position structure of the filtering component and the lifting component of a sludge flattening and drying device for urban sewage treatment of the present invention;

[0025] Figure 4 It is a schematic diagram of the connection structure between the steel brush and the pushing plate of a sludge flattening and drying device for urban sewage treatment of the present invention;

[0026] Figure 5 It is a schematic diagram of the structure of a flattening component of a sludge flattening and drying device for urban sewage treatment according to the present invention;

[0027] Figure 6 It is a front cross-sectional view of a flattening frame of a sludge flattening and drying device for urban sewage treatment according to the present invention;

[0028] Figure 7 It is a schematic diagram of the structure of an adjustment component of a sludge flattening and drying device for urban sewage treatment according to the present invention;

[0029] Figure 8 The present invention is a schematic diagram of the structure of a drying component of a sludge flattening and drying device for urban sewage treatment.

[0030] In the figure: 1. filter box; 2. filter assembly; 201. filter screen; 202. connection block; 203. mounting groove; 204. mounting block; 205. fixing ear; 3. lifting assembly; 301. winding wheel; 302. guide wheel; 303. traction rope; 304. driving motor; 4. outlet; 5. push assembly; 501. push plate; 502. cylinder; 503. mounting body; 504. support plate; 505. mounting plate; 506. clamping groove; 507. mounting seat; 508. steel brush; 509. spring block; 5010. limit slider; 6. drying box; 7. flattening assembly; 701. installation Mounting rack; 702, flattening frame; 703, flattening plate; 704, flattening inclined slot; 705, limit block; 706, limit slot; 707, handle; 708, limit plug; 8, adjustment assembly; 801, fixing seat; 802, fixing rod; 803, connecting plate; 804, servo motor; 805, lead screw; 806, lifting sleeve; 807, supporting seat; 808, limit slide; 809, slide slot; 9, drying assembly; 901, blower; 902, heating wire; 903, blast channel; 904, blast port; 10, discharge channel; 11, conveying pipe; 12, limit slot. DETAILED DESCRIPTION

[0031] The preferred embodiments of the present invention are described below in conjunction with the accompanying drawings. It should be understood that the preferred embodiments described herein are only used to illustrate and explain the present invention, and are not used to limit the present invention.

[0032] Example: Figure 1 , Figure 2 , Figure 3 , Figure 4 , Figure 5 , Figure 6 , Figure 7 and Figure 8 As shown, the present invention is a sludge flattening and drying device for urban sewage treatment, comprising a filtering structure and a flattening and drying structure arranged on one side of the filtering structure, the filtering structure comprising a filtering box 1 with an open top, a filtering assembly 2 for filtering sludge is arranged at the bottom of the inner cavity of the filtering box 1, and lifting assemblies 3 for lifting the filtering assembly 2 are arranged on both sides of the outside of the filtering box 1 respectively, an outlet 4 is opened through the top of one side of the filtering box 1, and a pushing assembly 5 for pushing the sludge is arranged on the other side of the filtering box 1 corresponding to the outlet 4, and a discharge channel 10 is arranged at the bottom end of the filtering box 1, and a conveying pipe 11 is arranged at the bottom end of the discharge channel 10;

[0033] The drying structure comprises a drying box 6, in which a flattening assembly 7 is arranged, at the bottom of the drying box 6 an adjusting assembly 8 for adjusting the position and height of the flattening assembly 7 is arranged, and on both sides of the drying box 6 drying assemblies 9 are arranged opposite to each other.

[0034] Among them, the filter component 2 includes a filter screen 201, and connecting blocks 202 are arranged on both sides of the filter screen 201. An installation groove 203 is opened on the inner side of the connecting block 202, and a mounting block 204 is arranged in the mounting groove 203. The two mounting blocks 204 are respectively fixedly arranged on both sides of the filter screen 201, and the mounting blocks 204 are fixedly connected to the connecting blocks 202 by fixing screws, and a fixing ear 205 is fixedly arranged in the middle of the top of the connecting block 202.

[0035] The filter screen 201 is a mesh structure specially used for filtering sludge. The filter screen 201 can filter and intercept sludge in sewage. The mounting block 204 cooperates with the mounting groove 203. When the filter screen 201 needs to be disassembled, only the fixing screws need to be removed to separate the mounting block 204 from the mounting groove 203.

[0036] Among them, the lifting assembly 3 includes a winding wheel 301 and a guide wheel 302, the winding wheel 301 is fixedly arranged on the outside of the filter box 1, a driving motor 304 for driving the winding wheel 301 is fixedly arranged on the filter box 1, and a traction rope 303 is wound around the outside of the winding wheel 301, and the guide wheel 302 is fixedly arranged on the inside of the filter box 1, and the movable end of the traction rope 303 is passed around the guide wheel 302 and connected to the fixed ear 205.

[0037] The driving motor 304 works to drive the winding wheel 301 to rotate, and the traction rope 303 can be wound up by the rotation of the winding wheel 301. The winding of the traction rope 303 can drive the filter screen 201 to rise, and further the sludge filtered by the filter screen 201 can be lifted upward.

[0038] Among them, the pushing component 5 includes a pushing plate 501, which is matched and placed in a groove that runs through the filter box 1, and two cylinders 502 are arranged on the back side of the pushing plate 501, and the output end of the cylinder 502 is fixedly connected to the pushing plate 501, and two mounting bodies 503 are fixedly arranged on the outside of the cylinder 502, and the bottom ends of the four mounting bodies 503 are connected to the same support plate 504, and a mounting plate 505 is fixedly arranged on the inner side of the support plate 504, and the mounting plate 505 is fixedly connected to the filter box 1 by fixing screws.

[0039] The two cylinders 502 are connected to an external gas station. When the sludge on the filter screen 201 is lifted higher than the outlet 4, the two cylinders 502 work to push the push plate 501 to move. The push plate 501 moves, and the sludge can be pushed out of the filter box 1 along the outlet 4. The position of the support plate 504 can be fixed by the provided mounting plate 505. The support plate 504 can support the two cylinders 502, thereby improving the stability of the position of the cylinder 502.

[0040] Among them, a clamping groove 506 is opened at the bottom end of the pushing plate 501, and a mounting seat 507 is slidably arranged in the clamping groove 506. Three spring blocks 509 are equidistantly arranged at the top of the mounting seat 507. One end of the spring block 509 is fixedly connected to the inner wall of the clamping groove 506. A steel brush 508 is arranged at the bottom end of the mounting seat 507, and limiting sliders 5010 are fixedly arranged on both sides of the mounting seat 507. The limiting sliders 5010 are slidably arranged in the limiting sliding grooves opened on both sides of the clamping groove 506.

[0041] When the sludge on the filter 201 approaches the bottom, the movement of the push plate 501 will drive the steel brush 508 to contact the filter 201. The steel brush 508 can clean the sludge attached to the filter 201, which can reduce the possibility of blockage of the filter 201. Moreover, through the provided spring block 509, when the interaction between the steel brush 508 and the filter 201 is strong, the elastic action of the spring block 509 can make the steel brush 508 shrink upward, which can reduce the force between the steel brush 508 and the filter 201 and protect the steel brush 508 and the filter 201.

[0042] Among them, the flattening component 7 includes a U-shaped mounting frame 701, which is placed in the drying box 6 in cooperation, and a group of flattening structures are evenly spaced along the vertical direction on the inner side of the mounting frame 701, and the flattening structure includes a flattening frame 702, and a flattening plate 703 is inclined at the bottom of the flattening frame 702, and the flattening plate 703 forms a flattening inclined groove 704 between the flattening frame 702, and both sides of the flattening frame 702 are fixedly provided with limiting blocks 705, and the limiting blocks 705 are slidably arranged in the limiting groove 706 opened on the mounting frame 701, a handle 707 is fixedly arranged on one side of the flattening frame 702, and a limiting plug block 708 in the shape of an inverted T is fixedly arranged on the other side of the flattening frame 702, and the limiting plug block 708 is placed in the limiting slot 12 opened on the filter box 1 in cooperation.

[0043] The number of flattening frames 702 can be 4, 6 or 8. By setting the flattening frames 702 to be multiple, more sludge can be loaded at one time, thereby improving the subsequent drying efficiency of the sludge. By setting the flattening plate 703 at an angle, when the sludge flows out from the outlet 4 into the flattening chute 704, the sludge will flow in the flattening chute 704 under the action of gravity, and thus the sludge can be flattened in the flattening chute 704 without the need for external force. By setting the limit plug 708, when the flattening frame 702 moves upward, the limit plug 708 will be matched and plugged into the limit slot 12, thereby improving the position stability of the flattening frame 702 when it moves upward. At the same time, when the sludge flows into the flattening chute 704, the position of the flattening frame 702 can be horizontally limited to prevent the flattening frame 702 from slipping out of the limit slot 706.

[0044] Among them, the adjustment component 8 includes a fixed seat 801, which is fixedly arranged in the middle of the bottom end of the drying box 6, and fixed rods 802 are fixedly arranged at the four corners of the bottom end of the fixed seat 801, the bottom ends of the four fixed rods 802 are fixedly connected to the same connecting plate 803, and a servo motor 804 is fixedly arranged at the bottom end of the connecting plate 803. A screw rod 805 is rotatably arranged at the top of the connecting plate 803, and the output end of the servo motor 804 is fixedly connected to the bottom end of the screw rod 805. The outer part of the screw rod 805 is threadedly connected with a lifting sleeve 806, and the top of the lifting sleeve 806 passes through the drying box 6 and is fixedly provided with a support seat 807, which is fixedly arranged in the middle of the bottom end of the mounting frame 701, and a group of limiting slide bars 808 are equidistantly arranged on the outer wall of the lifting sleeve 806 along the circumferential direction, and the limiting slide bars 808 are slidingly arranged in the slide bar groove 809 opened on the fixed seat 801.

[0045] The rotation of the servo motor 804 can drive the screw rod 805 to rotate. The screw rod 805 can drive the lifting sleeve 806 to move upward or downward along the screw rod 805 by rotating forward or reverse. When the lifting sleeve 806 moves upward, it can push the mounting frame 701 to move upward. The movement of the mounting frame 701 drives the flattening frame 702 to move upward, so that the frame openings of the flattening frames 702 at different heights can be moved to the position of the outlet 4. After all the flattening chute 704 are flattened and filled with sludge, the mounting frame 701 can be moved back to the drying box 6 by the reverse rotation of the screw rod 805. The limiting slide bar 808 cooperates with the slide bar groove 809 to limit the displacement of the lifting sleeve 806, thereby improving the stability of the position of the lifting sleeve 806 when it moves.

[0046] Among them, the drying component 9 includes a blower 901, which is fixedly arranged on the outside of the drying box 6, and a group of electric heating wires 902 are arranged at the air outlet of the blower 901, and the inner part of the outer panel constituting the drying box 6 is arranged to be a hollow structure, and the hollow structure is connected with the blower 901 to form a blast channel 903, and the inner side of the drying box 6 is connected with the blast channel 903 in the vertical direction and is provided with a blast port 904, and the blast port 904 is arranged corresponding to the flattening frame 702.

[0047] The blower 901 can blow the hot air generated by the heating wire 902 into the blast channel 903, and then the hot air is ejected through the blast port 904. Since the blast port 904 corresponds to the flattening frame 702, the hot air can be sprayed onto the sludge in the flattening chute 704, thereby achieving rapid drying of the sludge.

[0048] Working principle: When a lot of sludge is accumulated on the filter screen 201, the driving motor 304 works to drive the winding wheel 301 to rotate. The rotation of the winding wheel 301 can realize the winding of the traction rope 303, and the winding of the traction rope 303 can realize the upward movement of the filter screen 201, and then the sludge filtered by the filter screen 201 can be lifted up and left to stand for a period of time, which can reduce the water content in the sludge. Then the servo motor 804 works to drive the screw rod 805 to rotate, and the rotation of the screw rod 805 drives the lifting sleeve 806 to move upward along the screw rod 805. When the lifting sleeve 806 moves upward, it can push the mounting frame 701 to move upward. The movement of the mounting frame 701 drives the flattening frame 702 to move upward, and moves the frame opening of the flattening frame 702 at the highest position to be flush with the bottom end of the outlet 4, and then lifts the sludge to be higher than the outlet 4, and the two cylinders 502 work to push the push plate 501 to move. Through the movement of the push plate 501, the sludge can be pushed out of the filter box 1 along the outlet 4, and then the sludge will directly flow into the flattening chute 704, and under the action of gravity, the sludge will be quickly spread and filled in the flattening chute 704. At this time, the mounting frame 701 continues to move upward to fill the next flattening frame 702 with sludge. When all the flattening frames 702 are filled, the sleeve 8 is lifted. 06 drives the mounting frame 701 to move downward until the mounting frame 701 is completely moved into the drying box 6. The blower 901 can blow the hot air generated by the heating wire 902 into the blowing channel 903, and then the hot air is ejected through the blowing port 904. Since the blowing port 904 corresponds to the flattening frame 702, the hot air can just be sprayed onto the sludge in the flattening chute 704, thereby achieving rapid drying of the sludge. After the sludge is dried, the lifting sleeve 806 pushes the mounting frame 701 upward again, and then the staff can pull the handle 707 to remove the flattening frames 702 from the mounting frame 701 one by one. The operation is relatively convenient and quick.

[0049] Finally, it should be noted that the above description is only a preferred embodiment of the present invention and is not intended to limit the present invention. Although the present invention has been described in detail with reference to the aforementioned embodiments, those skilled in the art can still modify the technical solutions described in the aforementioned embodiments or replace some of the technical features therein by equivalents. Any modification, equivalent replacement, improvement, etc. made within the spirit and principle of the present invention shall be included in the protection scope of the present invention.

Claims

1. A sludge flattening and drying device for urban sewage treatment, comprising a filtering structure and a flattening and drying structure arranged on one side of the filtering structure, characterized in that: The filtering structure comprises a filtering box (1) with an open top, a filtering assembly (2) for filtering sludge is arranged at the bottom of the inner cavity of the filtering box (1), lifting assemblies (3) for lifting the filtering assembly (2) are arranged on both sides of the outside of the filtering box (1) respectively, an outlet (4) is opened through the top of one side of the filtering box (1), a pushing assembly (5) for pushing the sludge is arranged on the other side of the filtering box (1) corresponding to the outlet (4), a discharge channel (10) is arranged at the bottom end of the filtering box (1), and a conveying pipe (11) is arranged at the bottom end of the discharge channel (10); The drying structure comprises a drying box (6), a flattening assembly (7) is arranged in the drying box (6), an adjusting assembly (8) for adjusting the position and height of the flattening assembly (7) is arranged at the bottom end of the drying box (6), and drying assemblies (9) are arranged opposite to each other on both sides of the drying box (6); The pushing assembly (5) comprises a pushing plate (501), the pushing plate (501) being matched and placed in a slot which penetrates the filter box (1), and two cylinders (502) are arranged on the back side of the pushing plate (501), the output end of the cylinder (502) is fixedly connected to the pushing plate (501), and two mounting bodies (503) are fixedly arranged on the outside of the cylinder (502), the bottom ends of the four mounting bodies (503) are connected to the same supporting plate (504), the inner side of the supporting plate (504) is fixedly provided with a mounting plate (505), and the mounting plate (505) is fixedly connected to the filter box (1) by fixing screws; A clamping groove (506) is provided at the bottom end of the push plate (501), a mounting seat (507) is slidably provided in the clamping groove (506), three spring blocks (509) are equidistantly provided at the top of the mounting seat (507), one end of the spring block (509) is fixedly connected to the inner wall of the clamping groove (506), a steel brush (508) is provided at the bottom end of the mounting seat (507), and limiting sliders (5010) are fixedly provided on both sides of the mounting seat (507), and the limiting sliders (5010) are slidably provided in the limiting sliding grooves provided on both sides of the clamping groove (506); The flattening assembly (7) comprises a U-shaped mounting frame (701), the mounting frame (701) being matched and placed in a drying box (6), and a group of flattening structures are arranged equidistantly along the vertical direction on the inner side of the mounting frame (701), the flattening structure comprising a flattening frame (702), a flattening plate (703) being arranged obliquely at the bottom of the flattening frame (702), the flattening plate (703) forming a flattening inclined groove (704) between the flattening frame (702), and the flattening frame (702) Limiting blocks (705) are fixedly provided on both sides of the flattening frame (702), and the limiting blocks (705) are slidably provided in a limiting groove (706) provided on the mounting frame (701); a handle (707) is fixedly provided on one side of the flattening frame (702), and a limiting plug block (708) in an inverted T shape is fixedly provided on the other side of the flattening frame (702); the limiting plug block (708) is placed in a limiting slot (12) provided on the filter box (1); The adjustment assembly (8) comprises a fixing seat (801), the fixing seat (801) is fixedly arranged at the middle part of the bottom end of the drying box (6), and fixing rods (802) are fixedly arranged at the four corners of the bottom end of the fixing seat (801), the bottom ends of the four fixing rods (802) are fixedly connected to the same connecting plate (803), the bottom end of the connecting plate (803) is fixedly arranged with a servo motor (804), the top end of the connecting plate (803) is rotatably arranged with a screw rod (805), and the output end of the servo motor (804) is fixedly connected to the bottom end of the screw rod (805); The drying component (9) comprises a blower (901), the blower (901) is fixedly arranged outside the drying box (6), and a group of electric heating wires (902) are arranged at the air outlet of the blower (901), and the interior of the outer plate constituting the drying box (6) is arranged to be a hollow structure, and the hollow structure is connected with the blower (901) to form an air blast channel (903), and an air blast port (904) is provided on the inner side of the drying box (6) in a vertical direction and is connected with the air blast channel (903), and the air blast port (904) is arranged corresponding to the flattening frame (702).

2. A sludge flattening and drying device for urban sewage treatment according to claim 1, characterized in that: The filter assembly (2) comprises a filter screen (201), connecting blocks (202) are arranged on both sides of the filter screen (201), a mounting groove (203) is provided on the inner side of the connecting block (202), a mounting block (204) is arranged in the mounting groove (203), two mounting blocks (204) are respectively fixedly arranged on both sides of the filter screen (201), and the mounting blocks (204) are fixedly connected to the connecting blocks (202) by fixing screws, and a fixing ear (205) is fixedly arranged in the middle of the top of the connecting block (202).

3. A sludge flattening and drying device for urban sewage treatment according to claim 2, characterized in that: The lifting assembly (3) comprises a winding wheel (301) and a guide wheel (302); the winding wheel (301) is fixedly arranged on the outside of the filter box (1); a driving motor (304) for driving the winding wheel (301) is fixedly arranged on the filter box (1); a traction rope (303) is wound around the outside of the winding wheel (301); the guide wheel (302) is fixedly arranged on the inside of the filter box (1); and the movable end of the traction rope (303) is passed around the guide wheel (302) and fastened to the fixing ear (205).

4. A sludge flattening and drying device for urban sewage treatment according to claim 1, characterized in that: The outer part of the screw rod (805) is threadedly connected with a lifting sleeve (806), and the top of the lifting sleeve (806) passes through the drying box (6) and is fixedly provided with a support seat (807). The support seat (807) is fixedly provided in the middle of the bottom end of the mounting frame (701), and the outer wall of the lifting sleeve (806) is provided with a group of limiting slide bars (808) equidistantly along the circumferential direction. The limiting slide bars (808) are slidably provided in the slide bar groove (809) provided on the fixed seat (801).

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