Sludge dewatering device for hydraulic engineering construction

Abstract

The invention relates to the technical field of sludge dewatering, in particular to a sludge dewatering device for hydraulic engineering construction, which comprises a lifting seat mounted at the lower end of a filter tank, a reciprocating screw rod is rotatably arranged in the filter tank, a pressing plate is connected to the outer side of the reciprocating screw rod, a nozzle is mounted in the pressing plate, and one end of the nozzle is connected with a connecting pipe. A gear A is connected to the outer side of the connecting pipe, a filter screen is mounted at one end of the filter tank, a fixing frame is mounted at one end of the filter tank, a half gear is mounted on one side of the fixing frame, a gear B is rotationally arranged on one side of the half gear, and a rotating rod A is connected to one end of the gear B. When the device is used, accumulated sludge is primarily screened through the filter screen; in addition, when the spray head sprays water when the pressing plate moves, sludge balls can be wetted and loosened, so that the sludge can pass through the filter screen more easily, the situation that the sludge blocks due to the fact that the sludge is too sticky and blocks the filter screen is avoided, sludge residues attached to the surfaces of the impurities are reduced, and the impurities and the sludge are separated more thoroughly.

Description

TECHNICAL FIELD

[0001] The present application relates to the technical field of sludge dewatering, in particular to a sludge dewatering device for water conservancy construction. BACKGROUND

[0002] In water conservancy construction, whether it is river dredging, dam construction, reservoir desilting or irrigation channel regulation, a large amount of sludge containing high moisture will be produced. These sludge components are complex, usually containing impurities such as silt, organic matter, small stones, plant residues, etc., and the initial moisture content is extremely high (often more than 80%), the volume is large, and the flowability is strong. If directly piled up or transported, not only a large amount of space is occupied, but also secondary pollution may be caused by leakage, and the transportation cost and subsequent treatment difficulty are increased. When the traditional device is used, because the sludge contains a large amount of impurities, when the sludge is filtered, the flowability of the sludge is slowed down and the viscosity is increased when passing through the filter screen, which causes the sludge to be blocked by the filter screen due to excessive viscosity, and when the flowability of the sludge is slowed down, the sludge residue attached to the surface of the impurities is increased. SUMMARY

[0003] When the present application is used, the accumulated sludge is preliminarily screened by the filter screen, and the large impurities are separated out. When the nozzle moves with the pressing plate, water is sprayed to wet and loosen the sludge mass, so that the sludge is more easily passed through the filter screen, the sludge is prevented from being blocked by the filter screen due to excessive viscosity, the sludge residue attached to the surface of the impurities is reduced, and the separation of the impurities and the sludge is more thorough.

[0004] To achieve the above-mentioned purpose, the present application provides the following technical scheme: a sludge dewatering device for water conservancy construction, comprising a lifting seat installed at the lower end of a filter tank, a reciprocating screw rod rotating in the filter tank, a pressing plate connected to the outer side of the reciprocating screw rod, a nozzle installed in the pressing plate, a connecting pipe connected to one end of the nozzle, a gear A connected to the outer side of the connecting pipe, and a filter screen installed at one end of the filter tank. A fixed frame is installed at one end of the filter tank, a half gear is installed on one side of the fixed frame, a gear B rotates on one side of the half gear, a rotating rod A is connected to one end of the gear B, and a filter cloth is connected to the outer side of the rotating rod A. A gear C rotates on the other side of the half gear, a rotating rod B is connected to one end of the gear C, a rotating disc rotates on the outer side of the rotating rod B, a sleeve is arranged at one end of the rotating disc, a connecting rod is connected to the outer side of the sleeve, and a limiting rod is installed on one side of the filter tank.

[0005] Preferably, the filter tank is provided with two groups, two groups of the filter tank is installed on one side of the sealing plate, two groups of the filter tank is installed on one end of the motor, the reciprocating screw rod one end through the filter tank extends to the outside and the motor output end is connected, and the reciprocating screw rod outside is installed with bearing, the bearing and reciprocating screw rod ball nut pair connection, the bearing outside and the pressing plate are connected.

[0006] Preferably, two groups of the filter tank are internally mounted with guide rods, the guide rods are connected with the inner wall of the filter tank at both ends, and the guide rods are slidingly connected with the pressing plate outside.

[0007] Preferably, the pressing plate is inlaid with a plurality of nozzles inside, a plurality of the nozzles are connected with connecting pipes at one end, the connecting pipes are connected with water supply equipment at the other end, the gear A is fixedly connected with a rotating shaft at one end close to the connecting pipe, the rotating shaft extends to the inside through the connecting pipe and is connected with the valve, the gear A is engaged with a rack at one side, and the rack is connected with the inner wall of the filter tank at one end.

[0008] Preferably, the other end of the two groups of reciprocating screw rods extends to the outside through the filter tank and is connected with the half gear, the gear B is rotatably connected with the fixed frame, and the gear B is engaged with the half gear, and the other end of the rotating rod A is rotatably connected with the lifting seat.

[0009] Preferably, the filter tank is connected with a guide plate at one end, and the filter cloth is provided with a guide groove at the lower end, and the other end of the guide groove is connected with the water storage equipment.

[0010] Preferably, one end of the gear C is rotatably connected with the filter tank, and the gear C and the half gear are located in the same plane, and the other end of the rotating rod B is connected with the lifting seat.

[0011] Preferably, the rotating rod B is fixedly connected with a rotating disc outside, and the rotating disc is inlaid with a plurality of magnetic blocks A inside.

[0012] Preferably, the sleeve is sleeved outside the rotating rod B, and a plurality of magnetic blocks B are inlaid on one end of the sleeve close to the rotating disc.

[0013] Compared with the prior art, the present application has the following advantages: 1、The filter screen is used to preliminarily screen the accumulated sludge, separate out large impurities, and spray water when the nozzle moves on the pressing plate, which can wet and loosen the sludge, so that the sludge is more easily passed through the filter screen, avoids the sludge from blocking the filter screen due to excessive viscosity, reduces the sludge residue attached to the surface of the impurities, and makes the separation of the impurities and the sludge more thorough.

[0014] 2、The present application can continuously loosen the structure of sludge through the shaking generated by the alternate winding of the filter cloth on both sides, increase the gap between sludge particles, accelerate the penetration of water through the filter cloth, and avoid the caking of sludge on the surface of the filter cloth, so that more water is separated in the flow process, significantly improving the dewatering efficiency. Meanwhile, through the intermittent meshing of the half gear and gear B, the filter cloth realizes the cyclic action of alternate shaking, ensuring that the sludge completes dewatering under continuous flow and realizing the efficient cooperation of conveying and dewatering.

[0015] 3、The present application produces knocking on the outside of the filter cloth every certain period of time, breaks the adsorption force of sludge particles or small impurities attached to the surface of the filter cloth through vibration, shakes off the dirt blocking the filter holes, quickly restores the water permeability of the filter cloth, and cooperates with the periodic knocking vibration to make the water between the sludge particles more easily penetrate the filter cloth under the external vibration, the impact force generated by the knocking loosens the sludge layer on the filter cloth, reduces the water penetration resistance, and makes the sludge dewater faster in the flow process, reducing the final moisture content of the sludge. BRIEF DESCRIPTION OF DRAWINGS

[0016] Figure 1 It is one of the overall structure schematic diagrams of the present application; Figure 2 It is the second overall structure schematic diagram of the present application; Figure 3 It is the internal structure diagram of the filter tank of the present application; Figure 4 It is the first partial structure sectional view of the present application; Figure 5 It is the second partial structure sectional view of the present application; Figure 6 It is the third partial structure sectional view of the present application; Figure 7 It is the Figure 3 It is the enlarged view of structure at A in the present application; Figure 8 It is the enlarged view of structure at B in the present application. Figure 4

[0017] In the figure: 1, filter tank; 2, lifting seat; 3, motor; 4, reciprocating screw rod; 5, connecting pipe; 6, spray head; 7, gear A; 8, rotating shaft; 9, rack; 10, pressing plate; 11, filter screen; 12, half gear; 13, gear B; 14, rotating rod A; 15, filter cloth; 16, flow guide plate; 17, flow guide groove; 18, gear C; 19, rotating rod B; 20, rotating disc; 21, magnetic block A; 22, sleeve; 23, magnetic block B; 24, connecting rod; 25, limiting rod; 26, fixed frame; 27, guide rod. DETAILED DESCRIPTION

[0018] ​In order to make the purposes, technical solutions and advantages of the embodiments of the present application clearer, the technical solutions in the embodiments of the present application will be described clearly and completely below with reference to the drawings in the embodiments of the present application. Therefore, the following detailed description of the embodiments of the present application provided in the drawings is not intended to limit the scope of the claimed present application, but only represents selected embodiments of the present application. Based on the embodiments in the present application, all other embodiments obtained by those of ordinary skill in the art without creative efforts belong to the scope of protection of the present application.

[0019] With reference to Figures 1-8 The present application provides a sludge dewatering device for water conservancy construction, comprising a lifting seat 2 installed at the lower end of a filter tank 1, a reciprocating screw rod 4 rotating in the filter tank 1, a pressing plate 10 connected to the outer side of the reciprocating screw rod 4, a spray head 6 installed in the pressing plate 10, a connecting pipe 5 connected to one end of the spray head 6, a gear A 7 connected to the outer side of the connecting pipe 5, and a filter screen 11 installed at one end of the filter tank 1. A fixed frame 26 is installed at one end of the filter tank 1, a half gear 12 is installed on one side of the fixed frame 26, a gear B 13 rotates on one side of the half gear 12, a rotating rod A 14 is connected to one end of the gear B 13, and a filter cloth 15 is connected to the outer side of the rotating rod A 14. A gear C 18 rotates on the other side of the half gear 12, a rotating rod B 19 is connected to one end of the gear C 18, a rotating disc 20 rotates on the outer side of the rotating rod B 19, a sleeve pipe 22 is provided at one end of the rotating disc 20, a connecting rod 24 is connected to the outer side of the sleeve pipe 22, and a limiting rod 25 is installed on one side of the filter tank 1.

[0020] In an optional embodiment, the filter tank 1 is provided with two groups, a sealing plate is installed on one side of each of the two groups of filter tanks 1, a motor 3 is installed at one end of each of the two groups of filter tanks 1, the reciprocating screw rod 4 extends through the filter tank 1 to the outside and is connected to the output end of the motor 3 at one end, a bearing is installed on the outer side of the reciprocating screw rod 4, the bearing is connected with the ball nut pair of the reciprocating screw rod 4, and the bearing is connected with the pressing plate 10 on the outer side. Before use, the staff puts the sludge to be dewatered into the filter tank 1 through the feed inlet at the upper end of the filter tank 1. After the sludge enters the filter tank 1, the filter tank 1 is in an inclined state, so the sludge will automatically flow to the end of the filter tank 1 close to the filter screen 11 and accumulate. At this time, the motor 3 is started. After the motor 3 is started, the reciprocating screw rod 4 is driven to rotate synchronously. When the reciprocating screw rod 4 rotates, the pressing plate 10 is driven to reciprocate on the outer side of the reciprocating screw rod 4. At the same time, after the motor 3 is started, the sludge cannot be continuously added to the inside of the filter tank 1, and when the two groups of motors 3 are driven, there is a time difference between the two groups of motors 3, so the two groups of motors 3 will not be started synchronously.

[0021] In an optional embodiment, two groups of filter tanks 1 are internally mounted with guide rods 27, both ends of which are connected with the inner wall of the filter tank 1, and the outer side of the guide rod 27 is slidingly connected with the pressing plate 10. When the pressing plate 10 moves, it will be limited and guided by the guide rod 27, so as to prevent the pressing plate 10 from being skewed at both ends during movement, thereby causing inconsistent extrusion force on the sludge In an optional embodiment, the pressing plate 10 is inlaid with multiple groups of nozzles 6, one end of which is connected with a connecting pipe 5, the other end of which is connected with a water supply device. The end of the gear A7 close to the connecting pipe 5 is fixedly connected with a rotating shaft 8, which extends through the connecting pipe 5 to the inside and is connected with a valve. The gear A7 is engaged with a rack 9 on one side, one end of which is connected with the inner wall of the filter tank 1. When the pressing plate 10 moves, it will drive multiple groups of nozzles 6 to move simultaneously. When the nozzles 6 move, the connecting pipe 5 will move synchronously. When the connecting pipe 5 moves, the gear A7 will contact with the rack 9, so that the gear A7 will rotate through the rack 9. After the gear A7 rotates, it will open the valve inside the connecting pipe 5 synchronously. After the valve is opened, the water source will enter the inside of the nozzle 6 through the connecting pipe 5 for spraying. During the water spraying of the nozzle 6, one of the groups of nozzles 6 is located at the upper end of the reciprocating screw rod 4, and the nozzle 6 has an inclination angle, so that when the nozzle 6 sprays water, it can clean the front end of the reciprocating screw rod 4, thereby ensuring that the pressing plate 10 will not be affected during movement through the cleaning of the reciprocating screw rod 4 by the nozzle 6. When the sludge is accumulated at one end of the filter tank 1, the filter screen 11 will separate the large impurities in the sludge, so that the sludge flows out through the filter screen 11. When the pressing plate 10 moves, multiple groups of nozzles 6 spray water on the accumulated sludge, thereby promoting the separation of sludge and impurities. After the pressing plate 10 moves to a certain position, it will extrude the impurities, thereby preliminarily screening the accumulated sludge through the filter screen 11 to separate the large impurities. The water sprayed by the nozzle 6 can wet and loosen the sludge, making the sludge more easily pass through the filter screen 11, avoiding the sludge from blocking the filter screen 11 due to excessive viscosity, reducing the sludge residue attached to the surface of the impurities, and making the separation of impurities and sludge more thorough. After the pressing plate 10 extrudes the impurities, it will break the elastic impurities such as branches. Because the impurities are extruded by the pressing plate 10, the impurities will accumulate into blocks due to the extrusion force, thereby facilitating the subsequent workers to take out the impurities from the filter tank 1, thereby improving the cleaning efficiency. After use, after the rotating drive of the reciprocating screw rod 4 resets the pressing plate 10, the workers open the sealing plates on one side of the two groups of filter tanks 1 to take out the separated large impurities in the filter tank 1.

[0022] In an alternative embodiment, the two sets of reciprocating wire rods 4 extend through the filter tank 1 to the outside and are connected to the half gears 12, the gear B13 is rotatably connected to the fixed frame 26, and the gear B13 is engaged with the half gears 12, and the other end of the rotating rod A14 is rotatably connected to the lifting seat 2. As described above, when the reciprocating wire rod 4 rotates, it will synchronously drive the two sets of half gears 12 to rotate, and when the half gears 12 rotate, it will synchronously drive the gear B13 to rotate, and when the gear B13 rotates, it will synchronously drive the rotating rod A14 to rotate, and when the rotating rod A14 rotates, it will wind the filter cloth 15, and the two sets of half gears 12 rotate in opposite directions; And when the driving gear B13 rotates, the half gear 12 is designed with half teeth, so that after the half gear 12 rotates a certain number of degrees, it will disengage from the engagement with the gear B13. At this time, the filter cloth 15 will automatically reset by the weight of the internal sludge. As described above, the two sets of motors 3 will have a certain time difference, so the two sets of motors 3 will not start synchronously, so the two sets of motors 3 driving the reciprocating wire rod 4 to rotate will have a certain time difference, so the two sets of rotating rods A14 will form an alternating winding process. Because the two sides of the filter cloth 15 will vibrate alternately due to winding, and the filter cloth 15 is designed with an inclined surface, the sludge at the top of the filter cloth 15 will gradually flow to one end through vibration until it falls off. In the process of sludge flowing, the sludge and water are separated through the filter cloth 15. At this time, the water in the sludge that falls off will be separated in the process of moving, so that the vibration caused by the alternating winding of the two sides of the filter cloth 15 can continuously loosen the sludge structure, increase the gap between the sludge particles, accelerate the penetration of water into the filter cloth 15, and avoid the sludge from being compacted on the surface of the filter cloth 15, so that more water is separated in the process of flowing, significantly improving the dehydration efficiency. At the same time, through the intermittent engagement of the half gear 12 and the gear B13, the filter cloth 15 realizes the alternating vibration cycle, ensuring that the sludge completes dehydration under continuous flow, realizing efficient cooperation of conveying and dehydration; When in use, the staff can change the angle of the whole device through multiple lifting seats 2, and the length of the filter cloth 15 can be changed, so that when the angle of the whole device is reduced, the filtration time of the filter cloth 15 on the sludge will be prolonged, and the filtration time can be changed according to the actual use, and the large impurities are separated in advance by the filter tank 1, so that when the filter cloth 15 separates the sludge, the filter cloth 15 will not be damaged on the surface due to impurities, so that the maintenance of the equipment is reduced, and the separation process is more stable. Because the half gear 12 and the gear B13 are located on one side of the filter screen 11, the sludge will not affect the transmission between the half gear 12 and the gear B13 when the filter screen 11 filters the sludge.

[0023] In an optional embodiment, the filter tank 1 is connected with a guide plate 16 at one end, and the filter cloth 15 is provided with a guide groove 17 at the lower end, and the other end of the guide groove 17 is connected with a water storage device. After the sludge is preliminarily separated by the filter tank 1, it will accurately fall on the upper end of the filter cloth 15 through the guide plate 16, and the water source separated by the filter cloth 15 will drop into the guide groove 17, so that the guide groove 17 will collect the separated water source, facilitating subsequent reuse.

[0024] In an optional embodiment, the gear C18 is rotatably connected with the filter tank 1 at one end, and the gear C18 and the half gear 12 are located in the same plane, and the other end of the rotating rod B19 is connected with the lifting seat 2. When the half gear 12 rotates, it will synchronously drive the gear C18 to rotate, and when the gear C18 rotates, it will synchronously drive the rotating rod B19 to rotate.

[0025] In an optional embodiment, the rotating rod B19 is fixedly connected with a rotating disc 20 outside, and the rotating disc 20 is inlaid with a plurality of magnetic suction blocks A21. As described above, when the rotating rod B19 rotates, it will synchronously drive the rotating disc 20 to rotate, and when the rotating disc 20 rotates, it will synchronously drive the magnetic suction blocks A21 to rotate.

[0026] In an optional embodiment, a sleeve 22 is sleeved outside the rotating rod B19, and a plurality of magnetic suction blocks B23 are inlaid at one end of the sleeve 22 close to the rotating disc 20. The sleeve 22 is initially adsorbed by the magnetic suction blocks B23 and the magnetic suction blocks A21, and the connection between the rotating rod B19 and the filter tank 1 has a damping force, so that after the half gear 12 drives the rotating rod B19 to rotate by a certain angle, the half gear 12 will disengage from the meshing with the rotating rod B19. At this time, the rotating rod B19 will not reset due to the damping force, and when the rotating rod B19 rotates to synchronously drive the rotating disc 20 to rotate, the rotating disc 20 is adsorbed by the magnetic suction blocks A21 and the magnetic suction blocks B23 inside the sleeve 22 at this time. Therefore, when the rotating disc 20 rotates, it will synchronously drive the sleeve 22 to rotate, and when the sleeve 22 rotates, it will synchronously drive the connecting rod 24 outside to rotate. As the rotating rod B19 gradually rotates through the half gear 12, the position of the connecting rod 24 will gradually rise. As the position of the connecting rod 24 gradually rises, the connecting rod 24 will contact the limit rod 25. At this time, after the connecting rod 24 contacts the limit rod 25, it will be limited and cannot move. At this time, if the rotating rod B19 drives the turntable 20 to rotate again, the magnetic block A21 and the magnetic block B23 will be separated from the adsorption. When the magnetic block A21 and the magnetic block B23 are separated from the adsorption, the position of the connecting rod 24 is at a downward angle. Therefore, after the magnetic block B23 is separated from the magnetic block A21, the connecting rod 24 will drop due to height reasons. When the connecting rod 24 drops, it will synchronously drive the sleeve 22 to rotate, and when the connecting rod 24 drops, it will generate a certain impact force due to its own weight. At the same time, when the connecting rod 24 drops rapidly, it will not stop due to the magnetic attraction of the magnetic block A21 and the magnetic block B23. As the connecting rod 24 drops, the connecting rod 24 will be used. When the connecting rod 24 contacts the outside of the filter cloth 15 and stops after contacting the filter cloth 15, as the turntable 20 rotates, the magnetic block A21 and the magnetic block B23 will be adsorbed again, thereby knocking the filter cloth 15 back and forth, and then knocking the filter cloth 15 every once in a while, and accompanied by the above-mentioned effect, because the sludge will be flushed by the water source when it is detached from the filter tank 1, the sludge entering the filter cloth 15 will be mixed with more water, thereby knocking the outside of the filter cloth 15 every once in a while, breaking the adsorption force of the sludge particles or fine impurities attached to the surface of the filter cloth 15 through vibration, shaking off the dirt blocking the filter pores, and quickly restoring the water permeability of the filter cloth 15, and at the same time, combined with periodic knocking vibration, the moisture between the sludge particles can be more easily penetrated through the filter cloth 15 under the external force of vibration, and the impact force generated by the knocking will loosen the sludge layer on the filter cloth 15, reduce the water penetration resistance, and make the sludge dehydrated faster during the flow process, thereby reducing the final sludge moisture content.

[0027] Working principle: Before use, the staff puts the sludge to be dehydrated into the filter tank 1 through the feed port at the upper end of the filter tank 1. After the sludge enters the filter tank 1, because the filter tank 1 is in an inclined state, the sludge will automatically flow to the end of the filter tank 1 near the filter screen 11 and accumulate. At this time, the motor 3 is started. After the motor 3 is started, the reciprocating screw 4 will be driven to rotate synchronously. When the reciprocating screw 4 rotates, the pressing plate 10 will be driven to reciprocate outside the reciprocating screw 4. When the pressing plate 10 moves, it will be limited and guided by the guide rod 27. At the same time, when the two groups of motors 3 are driven, there will be a certain time difference between the two groups of motors 3, and thus the two groups of motors 3 will not start synchronously. When the pressing plate 10 moves, it will drive the plurality of groups of nozzles 6 to move synchronously, and when the nozzles 6 move, the connecting pipes 5 will move synchronously, and when the connecting pipes 5 move, the gear A7 will be in contact with the rack 9, so that the gear A7 will rotate through the rack 9, and after the gear A7 rotates, the valve inside the connecting pipe 5 will be opened synchronously, and after the valve is opened, the water source will enter the inside of the nozzle 6 through the connecting pipe 5 for spraying, and during the spraying of the nozzles 6, because one group of nozzles 6 is located at the upper end of the reciprocating lead screw 4, and the nozzles 6 have an inclination angle, so that when the nozzles 6 spray water, the front end of the reciprocating lead screw 4 will be cleaned; When the sludge is accumulated at one end of the filter tank 1, the filter screen 11 will separate the large impurities in the sludge, so that the sludge flows out through the filter screen 11, and when the pressing plate 10 moves, the plurality of groups of nozzles 6 will spray water on the accumulated sludge, and after the pressing plate 10 moves to a certain position, the impurities will be extruded; When the reciprocating lead screw 4 rotates, it will synchronously drive the two groups of half gears 12 to rotate, and when the half gears 12 rotate, the gear B13 will be driven to rotate synchronously, and when the gear B13 rotates, it will synchronously drive the rotating rod A14 to rotate, and when the rotating rod A14 rotates, it will wind the filter cloth 15, and the two groups of half gears 12 rotate in opposite directions, and when the half gears 12 drive the gear B13 to rotate, because the half gears 12 are designed as half teeth, so that after the half gears 12 rotate to a certain degree, they will be disengaged from the gear B13. At this time, the filter cloth 15 will be automatically reset by the weight of the internal sludge, because there is a time difference between the two groups of motors 3 driving the reciprocating lead screw 4 to rotate, so that the two groups of rotating rods A14 will form an alternating winding process, because the two sides of the filter cloth 15 will be shaken due to the alternating winding, and the filter cloth 15 is designed as an inclined surface, which will make the sludge at the upper end of the filter cloth 15 flow gradually to one end until it falls off, and in the process of sludge flowing, the sludge will be separated from the water by the filter cloth 15; When the half gear 12 rotates, it will drive the gear C18 to rotate synchronously, when the gear C18 rotates, it will drive the rotating rod B19 to rotate synchronously, when the rotating rod B19 rotates, it will drive the rotating disc 20 to rotate synchronously, when the rotating disc 20 rotates, it will drive the magnetic block A21 to rotate synchronously, after the half gear 12 drives the rotating rod B19 to rotate by a certain angle, the half gear 12 will disengage from the meshing with the rotating rod B19, at this time the rotating rod B19 will not reset due to the damping force, and when the rotating rod B19 rotates to drive the rotating disc 20 to rotate synchronously, at this time the rotating disc 20 is attracted to the magnetic block B23 inside the sleeve 22 through the magnetic block A21, so that when the rotating disc 20 rotates, it will drive the sleeve 22 to rotate synchronously, when the sleeve 22 rotates, it will drive the connecting rod 24 on the outside to rotate, as the rotating rod B19 gradually rotates through the half gear 12, it will make the position of the connecting rod 24 gradually rise, as the position of the connecting rod 24 gradually rises, it will make the connecting rod 24 contact with the limiting rod 25, at this time the connecting rod 24 will be limited to move after contacting with the limiting rod 25, at this time if the rotating rod B19 drives the rotating disc 20 to rotate again, it will cause the magnetic block A21 to separate from the magnetic block B23, at this time the position of the connecting rod 24 is at a downward angle when the magnetic block A21 separates from the magnetic block B23, so that after the magnetic block B23 separates from the magnetic block A21, the connecting rod 24 will descend due to the height, when the connecting rod 24 descends it will drive the sleeve 22 to rotate synchronously, and when the connecting rod 24 descends it will produce a certain impact force due to its own weight, at the same time when the connecting rod 24 descends quickly, it will not stop due to the magnetic attraction force of the magnetic block A21 and the magnetic block B23, as the connecting rod 24 descends, it will contact with the filter cloth 15 on the outside.

[0028] Although embodiments of the present application have been shown and described, it is to be understood that various modifications, substitutions, replacements and changes can be made to these embodiments without departing from the principles and spirit of the present application, the scope of the present application being defined by the appended claims and their equivalents.

Claims

1. A sludge dewatering device for water conservancy project construction, comprising a lifting seat (2) installed at the lower end of a filter tank (1), characterized in that: A reciprocating screw (4) rotates inside the filter tank (1), a pressure plate (10) is connected to the outside of the reciprocating screw (4), a nozzle (6) is installed inside the pressure plate (10), one end of the nozzle (6) is connected to a connecting pipe (5), the outside of the connecting pipe (5) is connected to a gear A (7), and a filter screen (11) is installed at one end of the filter tank (1); A fixing frame (26) is installed at one end of the filter tank (1), a half gear (12) is installed on one side of the fixing frame (26), a gear B (13) is rotated on one side of the half gear (12), one end of the gear B (13) is connected to a rotating rod A (14), and a filter cloth (15) is connected to the outside of the rotating rod A (14); A gear C (18) rotates on the other side of the half gear (12), one end of the gear C (18) is connected to a rotating rod B (19), a turntable (20) rotates on the outside of the rotating rod B (19), a sleeve (22) is provided at one end of the turntable (20), the outside of the sleeve (22) is connected to a connecting rod (24), and a limiting rod (25) is installed on one side of the filter tank (1).

2. A sludge dewatering device for water conservancy project construction according to claim 1, characterized in that: The filter tanks (1) are provided with two groups, and a sealing plate is installed on one side of the two groups of filter tanks (1). A motor (3) is installed on one end of the two groups of filter tanks (1). One end of the reciprocating screw (4) passes through the filter tank (1) and extends to the outside to be connected to the output end of the motor (3). A bearing is installed on the outside of the reciprocating screw (4), and the bearing is connected to the ball nut pair of the reciprocating screw (4). The outside of the bearing is connected to the pressure plate (10).

3. A sludge dewatering device for water conservancy project construction according to claim 1, characterized in that: Guide rods (27) are installed inside the two groups of filter tanks (1), both ends of the guide rods (27) are connected to the inner wall of the filter tank (1), and the outer side of the guide rods (27) is slidably connected to the pressure plate (10).

4. A sludge dewatering device for water conservancy project construction according to claim 1, characterized in that: The pressure plate (10) is embedded with multiple groups of nozzles (6), one end of each of the multiple groups of nozzles (6) is connected to a connecting pipe (5), the other end of the connecting pipe (5) is connected to a water supply device, the gear A (7) is fixedly connected to a rotating shaft (8) at one end close to the connecting pipe (5), the rotating shaft (8) passes through the connecting pipe (5) and extends to the inside to be connected to the valve, a rack (9) is meshed on one side of the gear A (7), and one end of the rack (9) is connected to the inner wall of the filter tank (1).

5. The sludge dewatering device for water conservancy project construction according to claim 1, characterized in that: The other ends of the two groups of reciprocating screw rods (4) penetrate the filter tank (1) and extend to the outside to be connected to the half gear (12). The gear B (13) is rotatably connected to the fixed frame (26), and the gear B (13) is meshed with the half gear (12). The other end of the rotating rod A (14) is rotatably connected to the lifting seat (2).

6. The sludge dewatering device for water conservancy project construction according to claim 1, characterized in that: One end of the filter tank (1) is connected to a guide plate (16), a guide tank (17) is provided at the lower end of the filter cloth (15), and the other end of the guide tank (17) is connected to a water storage device.

7. The sludge dewatering device for water conservancy project construction according to claim 1, characterized in that: One end of the gear C (18) is rotatably connected to the filter tank (1), and the gear C (18) and the half gear (12) are located on the same plane. The other end of the rotating rod B (19) is connected to the lifting seat (2).

8. The sludge dewatering device for water conservancy project construction according to claim 1, characterized in that: A turntable (20) is fixedly connected to the outside of the rotating rod B (19), and a plurality of groups of magnetic blocks A (21) are embedded in the turntable (20).

9. The sludge dewatering device for water conservancy project construction according to claim 1, characterized in that: The sleeve (22) is sleeved on the outside of the rotating rod B (19), and a plurality of groups of magnetic blocks B (23) are embedded on one end of the sleeve (22) close to the turntable (20).

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