Sludge dewatering equipment for municipal water conservancy projects

Abstract

This invention discloses a sludge dewatering device for municipal water conservancy projects, relating to the field of sludge treatment technology. It includes a housing with a filter frame fixedly installed at the top inside, and a discharge pipe penetrating the lower side of one side of the housing. It also includes a support frame positioned above the filter frame, with hydraulic cylinders symmetrically installed at the top of the support frame's interior. Pressure plates are fixedly installed at the movable ends of the two hydraulic cylinders. A sealing assembly is symmetrically arranged circumferentially on the outer side of the pressure plate. This design ensures that during sludge dewatering, the movement of the pressure plate allows the sealing gasket to adhere tightly to the filter frame, guaranteeing a seal between the pressure plate and the filter frame. This prevents wastewater from seeping out from the top of the sludge during the dewatering process, effectively filtering the wastewater. Furthermore, when the pressure plate extends into the filter frame, it prevents the sealing gasket from being squeezed and pressed against the corners of the top opening of the filter frame, protecting the sealing gasket and preventing damage.

Description

Technical Field

[0001] This invention relates to the field of sludge treatment technology, specifically to a sludge dewatering device for municipal water conservancy projects. Background Technology

[0002] In municipal engineering projects, sludge needs to be transported for the construction of water conservancy projects. To facilitate the transportation of sludge, it needs to be dewatered.

[0003] For example, in the environmentally friendly and efficient sludge dewatering equipment for water conservancy projects disclosed in CN112979133A, the push plate and conical tamping column are configured. Driven by a mechanism, the push plate moves to the right on the screening plate, pushing out stones, branches, and other debris that cannot fall through the filter holes. Simultaneously, the push plate's rightward movement, via a first roller on a slide rail, allows it to move back and forth, enabling the conical tamping column to slide into the staggered filter holes. This tamping column dislodges the sludge remaining in the filter holes, preventing it from solidifying and clogging them. Furthermore, the L-shaped push rod, push block, and top block allow the rack and pinion to vibrate the screening plate slightly in the left and right directions during movement. This vibration dislodges any remaining sludge from the filter holes, further ensuring sludge patency and allowing for subsequent sludge screening. Complete flow from the filter holes into the dewatering mechanism ensures better subsequent dewatering of the sludge. During sludge pressure filtration, the sludge is typically wrapped in filter cloth before being stacked and squeezed for dewatering. During this squeezing process, gaps may appear between the pressure plate and the filter frame as the pressure plate moves downwards, leading to poor sealing. High-pressure liquid can escape through these gaps, preventing effective water extraction. Excess wastewater from the sludge can seep out onto the top of the pressure plate, contaminating it and requiring subsequent cleaning. Furthermore, corrosive wastewater can damage the pressure plate, shortening its lifespan. Adding a sealing gasket to the pressure plate involves the pressure plate pushing the gasket into the filter frame, where it is then squeezed for sealing. The gasket's interference fit with the filter frame, combined with the pressure against the inner top opening of the filter frame, makes it susceptible to damage and limits its lifespan. These methods have certain drawbacks in practical use.

[0004] Therefore, we propose a sludge dewatering device for municipal water conservancy projects to solve the problems mentioned above. Summary of the Invention

[0005] The purpose of this invention is to provide a sludge dewatering device for municipal water conservancy projects, in order to solve the problems mentioned in the background art, such as the existence of a certain gap between the pressure plate and the filter frame during the downward movement of the pressure plate, resulting in poor sealing of the filter frame, the high-pressure liquid during the pressure filtration process escaping from the gap, the inability to effectively squeeze out water, the easy leakage of sewage from the sludge to seep out from the top of the pressure plate, causing pollution to the pressure plate, requiring subsequent cleaning, and the corrosiveness of the sewage, which can easily corrode the pressure plate and affect its lifespan.

[0006] To achieve the above objectives, the present invention provides the following technical solution: a sludge dewatering device for municipal water conservancy projects, comprising a box body, a filter frame fixedly installed on the upper part of the box body, and a discharge pipe penetratingly connected to the lower side of one side of the box body;

[0007] Also includes:

[0008] A support frame is set above the filter frame. Hydraulic cylinders are symmetrically installed at the top of the inside of the support frame, and pressure plates are fixedly installed on the movable ends of the two hydraulic cylinders.

[0009] The sealing components are circumferentially symmetrically arranged on the outside of the pressure plate. There are four sealing components, and each sealing component includes a movable groove.

[0010] The rotating component is located below the filter frame;

[0011] The movable groove is symmetrically opened on the outside of the pressure plate. The movable plate is slidably connected inside the movable groove, and a sealing gasket is fixedly installed on one side of the movable plate. The four sealing gaskets are staggered. At the same time, the top of the pressure plate is symmetrically installed above the four movable plates, and the two positioning frames are rotatably connected to the inside of the rotating shaft.

[0012] A torsion spring is symmetrically sleeved on both sides of the outside of the rotating shaft. One end of the torsion spring is fixedly connected to the positioning frame, and the other end of the torsion spring is fixedly installed with a mounting block, which is fixedly connected to the rotating shaft.

[0013] Preferably, a movable frame is symmetrically installed on the top of the movable plate, and a through groove is symmetrically opened on the top of the pressure plate on one side of the rotating shaft, and a support rod is fixedly installed inside the through groove, while the movable frame and the support rod are slidably connected.

[0014] By adopting the above technical solution, the movement of the movable plate can be supported.

[0015] Preferably, two sets of mounting brackets are symmetrically installed on opposite sides of the outer surface of the rotating shaft, and rollers are rotatably connected between the two mounting brackets in each set. A rotating block is fixedly installed on one side of each of the two mounting blocks on the outer surface of the rotating shaft. Meanwhile, columns are symmetrically installed on both sides of the rotating block, and one column abuts against the movable frame.

[0016] By adopting the above technical solution, the rotating rod of the rotating block can drive the movable frame to move.

[0017] Preferably, the movable plate has symmetrically provided mounting slots inside, and mounting rods are slidably connected to one side of each of the two mounting slots inside the movable plate. One end of the mounting rod is fixedly connected to the movable slot, and a telescopic spring is sleeved on the outer side of the mounting rod. The two ends of the telescopic spring are fixedly connected to the movable plate and the movable slot, respectively. A first piston is fixedly installed on one end of the mounting rod, and the first piston is slidably connected to the mounting slot.

[0018] By adopting the above technical solution, the movable plate can be automatically reset after it has been moved.

[0019] Preferably, a cylinder is fixedly installed on one side of each of the two rotating blocks at the top of the pressure plate, and a second piston is slidably connected inside the cylinder. A movable rod is fixedly installed on one side of the second piston, and the movable rod is slidably connected to the cylinder. A movable frame is slidably connected to the outer side of the movable rod, and a compression spring is sleeved on the outer side of the movable rod on the side of the movable frame. The two ends of the compression spring are fixedly connected to the movable frame and the cylinder, respectively. Meanwhile, a guide rod is slidably connected inside the movable frame on one side of the movable rod, and one end of the guide rod is fixedly connected to the cylinder.

[0020] By adopting the above technical solution, the movement of the movable rod can apply pressure to the inside of the mounting slot.

[0021] Preferably, a movable plate is fixedly installed on the side of the movable frame away from the cylinder, and a sliding groove is opened through one side of the movable plate, and the column on the other side is slidably connected to the sliding groove. At the same time, a connecting pipe is connected through the side of the cylinder away from the movable frame, and the end of the connecting pipe away from the cylinder passes through the pressure plate and is connected through the mounting groove.

[0022] By adopting the above technical solution, the rotation of the rotating block can drive the moving plate to move.

[0023] Preferably, a fixing plate is fixedly installed on the upper side of one side of the box, and two sets of fixing blocks are symmetrically installed on the fixing plate and the top of the box. A screw is rotatably connected between the two fixing blocks on one side, and the support frame is threadedly connected to the screw. A servo motor is fixedly installed on one side of the top of the fixing plate, and the output end of the servo motor passes through the fixing block on one side and is fixedly connected to the screw. A limit rod is fixedly installed between the two fixing blocks on the other side, and the support frame is slidably connected to the limit rod.

[0024] By adopting the above technical solution, it is easy to control the movement of the support frame.

[0025] Preferably, the rotating assembly includes a rotating tube rotatably connected to the lower part of the housing, and two sets of mounting tubes are symmetrically connected to the upper part of the rotating tube. Spray nozzles are symmetrically connected to the sides of the two sets of mounting tubes that are far apart. A one-way valve is provided inside the spray nozzle, and an inlet pipe is connected to the bottom end of the rotating tube through a rotary joint.

[0026] By adopting the above technical solution, it is convenient to treat the wastewater separated from the sludge and to carry out subsequent rinsing and cleaning.

[0027] Preferably, a drive motor is fixedly installed on one side of the bottom of the housing, and a first bevel gear is fixedly installed at the output end of the drive motor. A limit frame is fixedly installed below the outside of the rotating tube, and the limit frame is fixedly connected to the housing. A second bevel gear is fixedly installed below the limit frame on the outside of the rotating tube, and the second bevel gear meshes with the first bevel gear.

[0028] By adopting the above technical solution, it is easy to drive the rotating tube to rotate.

[0029] Compared with the prior art, the beneficial effects of the present invention are as follows: the sludge dewatering equipment for municipal water conservancy projects allows the sealing gasket to be tightly attached to the filter frame by the movement of the pressure plate during sludge dewatering, ensuring the sealing between the pressure plate and the filter frame and preventing sewage from seeping out from the top of the sludge during the filtration process. This effectively filters the sewage. At the same time, when the pressure plate extends into the filter frame, it can prevent the sealing gasket from being squeezed and pressed against the corner of the top opening of the filter frame, thus protecting the sealing gasket from damage. Furthermore, the pressure plate can apply pressure during sealing, preventing the sealing performance from decreasing due to friction between the sealing gasket and the filter frame after long-term use. This ensures the sealing performance even after long-term use and extends the service life.

[0030] 1. During sludge dewatering, the sludge is wrapped with filter cloth, which is then stacked inside the filter frame. The servo motor is then activated to drive the screw, moving the support frame. This movement moves the pressure plate above the filter frame. The hydraulic cylinder is then activated to lower the pressure plate. At this point, the four sealing gaskets on the side away from the pressure plate will not contact the filter frame. After the four sealing gaskets extend into the filter frame, they will not contact the edges of the upper opening inside the filter frame. The pressure plate continues to move downwards, allowing the rollers to abut against the inner wall of the filter frame. As the pressure plate moves downwards, the rollers and mounting frame work together to rotate the rotating shaft clockwise, causing the torsion spring to deform. This rotation of the rotating shaft then drives the rotating block to rotate. The rotating block's rotation, through contact with the movable frame, pushes the movable frame. The movement of the pressure plate allows the movable plate to move, causing the first piston to slide in the mounting groove and stretch the telescopic spring. This, in turn, causes the four sealing gaskets to simultaneously move away from the pressure plate and press tightly against the inner wall of the filter frame. The displacement of the sealing gaskets is not excessive. After the four sealing gaskets move, they intersect each other, which can also seal the corner gaps after the four movable plates move. This ensures that the sealing gaskets only press tightly against the inside of the filter frame after they extend into it. During the dewatering of sludge, the movement of the pressure plate ensures that the sealing gaskets are pressed tightly against the filter frame, guaranteeing the seal between the pressure plate and the filter frame. This prevents wastewater from seeping out from the top of the sludge during the dewatering process and effectively filters the wastewater. At the same time, when the pressure plate extends into the filter frame, it prevents the sealing gaskets from being squeezed and pressed against the corners of the top opening of the filter frame, protecting the sealing gaskets from damage.

[0031] 2. When sealing the movement of the pressure plate, the rotating block rotates and, through the connection between the other side column and the sliding groove, can push the moving plate and the moving frame to move. The inside of the cylinder is filled with hydraulic oil on one side of the second piston. The movement of the first piston in the mounting groove can draw the hydraulic oil into the mounting groove. The diameter of the first piston is much smaller than that of the second piston, so that the displacement distance of the first piston is greater than the movement distance of the second piston. At this time, the moving frame can slide on the guide rod and the movable rod under the action of the other side column, causing the compression spring to deform. The compression spring can pressurize the second piston. If the sealing gasket wears and the thickness decreases, the rotation angle of the column remains unchanged, so that the movement distance of the sealing gasket remains unchanged. If the sealing gasket is not tightly pressed against the inside of the filter frame after being pushed by one side column, the reaction force of the compression spring can push the hydraulic oil in the cylinder into the mounting groove. Since the first piston is fixed on the mounting rod, the inflow of hydraulic oil can push the movable plate to move, which can pressurize and pre-tighten the sealing gasket, avoiding the decrease in sealing performance between the sealing gasket and the filter frame due to friction after long-term use. It can still ensure sealing performance after long-term use.

[0032] 3. During sludge filtration, wastewater can enter the tank through the drain hole below the filter frame. An external pump can be used to introduce chemicals into the inlet pipe, allowing the chemicals to enter the rotating tube. Starting the drive motor causes the rotating tube to rotate via the meshing of the first and second bevel gears. The chemicals are sprayed out through nozzles on the mounting pipe, and the rotating tube's circumferential rotation stirs the wastewater and chemicals, purifying the wastewater. The wastewater is then discharged through the outlet pipe. After sludge dewatering, clean water can be introduced into the rotating tube through the inlet pipe, causing the nozzles to spray clean water. Simultaneously, the rotating pipe's circumferential rotation washes the lower interior of the tank, improving its practicality. Attached Figure Description

[0033] Figure 1 This is a schematic diagram of the overall structure of the present invention;

[0034] Figure 2 This is a schematic diagram of the pressure plate structure of the present invention;

[0035] Figure 3 This is a schematic cross-sectional view of the side of the pressure plate of the present invention;

[0036] Figure 4 This is a schematic diagram of the movable plate structure of the present invention;

[0037] Figure 5 This is a schematic diagram of the sealing assembly structure of the present invention;

[0038] Figure 6 For the present invention Figure 5 Enlarged structural diagram of region A in the middle;

[0039] Figure 7 This is a schematic diagram of the top cross-sectional structure of the movable plate of the present invention;

[0040] Figure 8 For the present invention Figure 7 Enlarged structural diagram of region B in the middle;

[0041] Figure 9 This is a partial structural diagram of the sealing assembly of the present invention;

[0042] Figure 10 This is a schematic diagram of the cross-sectional structure of the box body of the present invention.

[0043] In the diagram: 1. Housing; 101. Filter frame; 102. Discharge pipe; 103. Support frame; 104. Hydraulic cylinder; 105. Pressure plate; 106. Fixing plate; 107. Fixing block; 108. Screw; 109. Servo motor; 110. Limit rod; 2. Sealing assembly; 201. Movable groove; 202. Movable plate; 203. Sealing gasket; 204. Positioning frame; 205. Rotating shaft; 206. Torsion spring; 207. Mounting block; 208. Movable frame; 209. Through groove; 210. Support rod; 211. Mounting frame; 212. Roller; 213. 214. Rotating block; 215. Column rod; 216. Mounting groove; 217. Mounting rod; 218. Telescopic spring; 219. First piston; 220. Cylinder body; 221. Movable rod; 222. Second piston; 223. Moving frame; 224. Compression spring; 225. Guide rod; 226. Moving plate; 227. Sliding groove; 228. Connecting pipe; 301. Rotating assembly; 302. Rotating pipe; 303. Nozzle; 304. Inlet pipe; 305. Drive motor; 306. First bevel gear; 307. Limiting frame; 308. Second bevel gear. Detailed Implementation

[0044] The technical solutions of the embodiments of the present invention will be clearly and completely described below with reference to the accompanying drawings. Obviously, the described embodiments are only some embodiments of the present invention, and not all embodiments. Based on the embodiments of the present invention, all other embodiments obtained by those skilled in the art without creative effort are within the scope of protection of the present invention.

[0045] Please see Figures 1-10 The present invention provides a technical solution: a sludge dewatering device for municipal water conservancy projects, including a box 1, a filter frame 101 fixedly installed on the upper part of the box 1, and a discharge pipe 102 connected through the lower side of one side of the box 1.

[0046] Also includes:

[0047] The support frame 103 is set above the filter frame 101. Hydraulic cylinders 104 are symmetrically installed at the top of the inside of the support frame 103, and pressure plates 105 are fixedly installed on the movable ends of the two hydraulic cylinders 104.

[0048] The sealing assembly 2 is circumferentially symmetrically arranged on the outside of the pressure plate 105. There are four sealing assemblies 2, and each sealing assembly 2 includes a movable groove 201.

[0049] The movable groove 201 is symmetrically opened on the outer side of the pressure plate 105. The movable plate 202 is slidably connected inside the movable groove 201. A sealing gasket 203 is fixedly installed on one side of the movable plate 202. The four sealing gaskets 203 are staggered. At the same time, the top of the pressure plate 105 is symmetrically installed above the four movable plates 202. The two positioning frames 204 are rotatably connected to the inside of the rotating shaft 205.

[0050] A torsion spring 206 is symmetrically sleeved on both sides of the outside of the rotating shaft 205. One end of the torsion spring 206 is fixedly connected to the positioning frame 204, and the other end of the torsion spring 206 is fixedly installed with a mounting block 207, which is fixedly connected to the rotating shaft 205.

[0051] The top of the movable plate 202 is symmetrically equipped with a movable frame 208, and the top of the pressure plate 105 is symmetrically provided with a through groove 209 on one side of the rotating shaft 205. A support rod 210 is fixedly installed inside the through groove 209, and the movable frame 208 is slidably connected to the support rod 210.

[0052] Two sets of mounting brackets 211 are symmetrically installed on the two opposite sides of the outer side of the rotating shaft 205, and a roller 212 is rotatably connected between the two mounting brackets 211 in each set. A rotating block 213 is fixedly installed on one side of the two mounting blocks 207 on the outer side of the rotating shaft 205. At the same time, a column rod 214 is symmetrically installed on both sides of the rotating block 213, and one column rod 214 abuts against the movable frame 208.

[0053] The movable plate 202 has symmetrically provided mounting slots 215 inside, and mounting rods 216 are slidably connected to one side of each of the two mounting slots 215 inside the movable plate 202. One end of the mounting rod 216 is fixedly connected to the movable slot 201. Meanwhile, a telescopic spring 2161 is sleeved on the outer side of the mounting rod 216. The two ends of the telescopic spring 2161 are fixedly connected to the movable plate 202 and the movable slot 201 respectively. A first piston 217 is fixedly installed on one end of the mounting rod 216, and the first piston 217 is slidably connected to the mounting slot 215.

[0054] A fixing plate 106 is fixedly installed on the upper side of one side of the housing 1, and two sets of fixing blocks 107 are symmetrically installed on the fixing plate 106 and the top of the housing 1. A screw 108 is rotatably connected between the two fixing blocks 107 on one side, and the support frame 103 is threadedly connected to the screw 108. A servo motor 110 is fixedly installed on one side of the top of the fixing plate 106, and the output end of the servo motor 110 passes through the fixing block 107 on one side and is fixedly connected to the screw 108. A limit rod 109 is fixedly installed between the two fixing blocks 107 on the other side, and the support frame 103 is slidably connected to the limit rod 109.

[0055] Example 1: As Figures 1-8 As shown, during sludge dewatering, the sludge is wrapped with filter cloth, which is then stacked inside the filter frame 101. The servo motor 109 is then activated to rotate the screw 108, causing the support frame 103 to move. After the support frame 103 moves, the pressure plate 105 moves above the filter frame 101. The hydraulic cylinder 104 is then activated to move the pressure plate 105 downwards. At this point, the side of the four sealing gaskets 203 furthest from the pressure plate 105 will not contact the filter frame 101. The four sealing gaskets 203 extend into... After the filter frame 101 is lowered, it will not contact the corner of the upper opening inside the filter frame 101. Then, the pressure plate 105 continues to move downward, allowing the roller 212 to abut against the inner wall of the filter frame 101. As the pressure plate 105 moves downward, the roller 212 and the mounting bracket 211 drive the rotating shaft 205 to rotate clockwise, causing the torsion spring 206 to deform. After the rotating shaft 205 rotates, it drives the rotating block 213 to rotate. After the rotating block 213 rotates, the column rod 214 on one side can abut against the movable frame 208. Moving the movable frame 208 causes the movable plate 202 to move, allowing the first piston 217 to slide in the mounting groove 215 and stretch the telescopic spring 2161. This causes the four sealing gaskets 203 to simultaneously move away from the pressure plate 105 and press tightly against the inner wall of the filter frame 101. The movement of the sealing gaskets 203 is not excessive. The four sealing gaskets 203 stagger after moving, which can also seal the corner gaps after the four movable plates 202 move. This ensures that the sealing gaskets 203 extend into the filter frame 101 before contacting it. The internal fit is tight, so that when the pressure plate 105 moves to dewater the sludge, the sealing gasket 203 can be tightly pressed against the filter frame 101, which can ensure the sealing between the pressure plate 105 and the filter frame 101 and prevent the sewage in the sludge from seeping out from the top during the filtration process. It can effectively filter the sewage. At the same time, when the pressure plate 101 extends into the filter frame 105, it can prevent the sealing gasket 203 from being squeezed and pressed against the corner of the top opening of the filter frame 101, which can protect the sealing gasket 203 and prevent it from being damaged.

[0056] A movable plate 224 is fixedly installed on the side of the movable frame 221 away from the cylinder 218, and a sliding groove 225 is opened through one side of the movable plate 224. The column rod 214 on the other side is slidably connected to the sliding groove 225. Meanwhile, a connecting pipe 226 is connected through the side of the cylinder 218 away from the movable frame 221, and the end of the connecting pipe 226 away from the cylinder 218 passes through the pressure plate 105 and is connected through the mounting groove 215.

[0057] Example 2: Figures 5-9As shown, when sealing the movement of the pressure plate 105, the rotating block 213 rotates and, through the connection between the other side column 214 and the sliding groove 225, can push the moving plate 224 and the moving frame 221 to move. The inside of the cylinder 218 is filled with hydraulic oil on one side of the second piston 220. The first piston 217 moves in the mounting groove 215 and can draw the hydraulic oil into the mounting groove 215. The diameter of the first piston 217 is much smaller than the diameter of the second piston 220, so that the displacement distance of the first piston 217 is greater than the movement distance of the second piston 220. At this time, the moving frame 221 can slide on the guide rod 223 and the movable rod 219 under the action of the other side column 214, causing the compression spring 222 to deform. Through the compression spring 222, the hydraulic oil can be drawn into the mounting groove 215. If the sealing gasket 203 wears down and its thickness decreases, the rotation angle of the rod 214 remains unchanged, so that the moving distance of the sealing gasket 203 remains unchanged. If the sealing gasket 203 is not tightly pressed against the inside of the filter frame 101 after the rod 214 pushes it to move, the hydraulic oil in the cylinder 218 can continue to be pushed into the mounting groove 215 by the reaction force of the compression spring 222. Since the first piston 217 is fixed to the mounting rod 216, the inflow of hydraulic oil can push the movable plate 202 to move, which can pressurize and pre-tighten the sealing gasket 203 to avoid the sealing performance from decreasing due to friction between the sealing gasket 203 and the filter frame 101 after long-term use. The sealing performance can still be guaranteed after long-term use.

[0058] Rotating component 3 is located below filter frame 101;

[0059] The rotating assembly 3 includes a rotating tube 301 rotatably connected to the lower part of the housing 1, and two sets of mounting tubes 302 are symmetrically connected to the upper part of the rotating tube 301. Spray nozzles 303 are symmetrically connected to the sides of the two sets of mounting tubes 302 that are far apart. A one-way valve is provided inside the spray nozzle 303. The bottom end of the rotating tube 301 is connected to an inlet tube 304 through a rotary joint.

[0060] A drive motor 305 is fixedly installed on one side of the bottom of the housing 1, and a first bevel gear 306 is fixedly installed at the output end of the drive motor 305. A limit frame 307 is fixedly installed on the lower outside of the rotating tube 301, and the limit frame 307 is fixedly connected to the housing 1. A second bevel gear 308 is fixedly installed on the lower outside of the rotating tube 301 below the limit frame 307, and the second bevel gear 308 is meshed with the first bevel gear 306.

[0061] Example 3: Figure 1 and Figure 10As shown, during sludge filtration, wastewater can enter the housing 1 through the drain hole below the filter frame 101. An external pump can be used to introduce chemicals into the inlet pipe 304, allowing the chemicals to enter the rotating pipe 301. The drive motor 305 is started, and the meshing of the first bevel gear 306 and the second bevel gear 308 drives the rotating pipe 301 to rotate. The chemicals are sprayed out through the nozzle 303 on the mounting pipe 302. The rotating pipe 301 also drives the mounting pipe 302 to rotate circumferentially, stirring the wastewater and chemicals, thus purifying the wastewater. Afterward, the wastewater is discharged through the discharge pipe 102. After sludge dewatering, clean water can be introduced into the rotating pipe 301 through the inlet pipe 304, causing the nozzle 303 to spray clean water. Simultaneously, the mounting pipe 302 rotates circumferentially, rinsing the lower interior of the housing 1, thus improving practicality.

[0062] Working principle: When using this sludge dewatering equipment for municipal water conservancy projects, firstly, according to... Figures 1-10 As shown, during sludge dewatering, the sludge is wrapped with filter cloth, which is then stacked inside the filter frame 101. The servo motor 109 is then activated to rotate the screw 108, causing the support frame 103 to move. After the support frame 103 moves, the pressure plate 105 moves above the filter frame 101. The hydraulic cylinder 104 is then activated to move the pressure plate 105 downwards. At this point, the four sealing gaskets 203 on the side away from the pressure plate 105 will not contact the filter frame 101. After the four sealing gaskets 203 extend into the filter frame 101, they will not contact the edges of the upper opening inside the filter frame 101. The pressure plate 105 continues to move downwards, allowing the roller 212 to abut against the inner wall of the filter frame 101. As the pressure plate 105 moves downwards, the roller 212 and the mounting frame 2... Under the action of 11, the rotating shaft 205 is driven to rotate clockwise, causing the torsion spring 206 to deform. After the rotating shaft 205 rotates, it drives the rotating block 213 to rotate. After the rotating block 213 rotates, the column rod 214 on one side can push the movable frame 208 to move by abutting against the movable frame 208, so that the movable plate 202 can be moved. This causes the first piston 217 to slide in the mounting groove 215 and stretch the telescopic spring 2161, thereby causing the four sealing gaskets 203 to move away from the pressure plate 105 and stick tightly to the inner wall of the filter frame 101. The displacement of the sealing gaskets 203 will not be too large. After the four sealing gaskets 203 move, they will intersect each other, which can also seal the corner gaps after the four movable plates 202 move. This allows the sealing gaskets 203 to stick tightly to the inside of the filter frame 101 after they extend into the filter frame 101.

[0063] When sealing the movement of the pressure plate 105, the rotating block 213 rotates and, through the connection between the other side column 214 and the sliding groove 225, can push the moving plate 224 and the moving frame 221 to move. The inside of the cylinder 218, located on one side of the second piston 220, is filled with hydraulic oil. The movement of the first piston 217 in the mounting groove 215 can draw hydraulic oil into the mounting groove 215. The diameter of the first piston 217 is much smaller than the diameter of the second piston 220, so that the displacement distance of the first piston 217 is greater than the movement distance of the second piston 220. At this time, the movable frame 221 can slide on the guide rod 223 and the movable rod 219 under the action of the other side column 214, causing the compression spring 222 to deform. The compression spring 222 can pressurize the second piston 220. If the sealing gasket 203 wears and its thickness decreases, the rotation angle of the column 214 remains unchanged, so the moving distance of the sealing gasket 203 remains unchanged. If the sealing gasket 203 is not tightly pressed against the inside of the filter frame 101 after being pushed by one side column 214, the reaction force of the compression spring 222 can pressurize the cylinder. Hydraulic oil in body 218 continues to be pushed into mounting groove 215. Since the first piston 217 is fixed to mounting rod 216, the introduction of hydraulic oil can push the movable plate 202 to move, which can pressurize and pre-tighten the sealing gasket 203. When filtration of sludge, sewage can enter the box 1 through the drain hole below the filter frame 101. The agent can be introduced into the inlet pipe 304 through the external pump, so that the liquid can enter the rotating pipe 301. The drive motor 305 is started and runs through the first bevel gear 306 and the second bevel gear. The meshing of wheel 308 drives the rotating tube 301 to rotate, and the liquid medicine is sprayed out through the nozzle 303 on the mounting tube 302. The rotating tube 301 can drive the mounting tube 302 to rotate circumferentially to stir the sewage and the medicine, which can purify the sewage. After that, the sewage is discharged through the discharge pipe 102. After the sludge is dewatered, clean water can be introduced into the rotating tube 301 through the inlet pipe 304, so that the nozzle 303 sprays clean water. At the same time, the mounting tube 302 rotates circumferentially, which can rinse the lower part of the inside of the tank 1, improving its practicality.

[0064] The contents not described in detail in this specification are existing technologies known to those skilled in the art.

[0065] Although the present invention has been described in detail with reference to the foregoing embodiments, those skilled in the art can still modify the technical solutions described in the foregoing embodiments or make equivalent substitutions for some of the technical features. Any modifications, equivalent substitutions, improvements, etc., made within the spirit and principles of the present invention should be included within the protection scope of the present invention.

Claims

1. A sludge dewatering device for municipal water conservancy projects, comprising a box (1), wherein a filter frame (101) is fixedly installed on the upper part of the box (1), and a discharge pipe (102) is connected through the lower side of one side of the box (1). Its features are, Also includes: A support frame (103) is set above the filter frame (101). Hydraulic cylinders (104) are symmetrically installed at the top of the inside of the support frame (103), and pressure plates (105) are fixedly installed on the movable ends of the two hydraulic cylinders (104). The sealing assembly (2) is symmetrically arranged on the outside of the pressure plate (105) in a circumferential direction. There are four sealing assemblies (2), and each sealing assembly (2) includes a movable groove (201). The rotating component (3) is located below the filter frame (101); The movable groove (201) is symmetrically opened on the outside of the pressure plate (105). The movable plate (202) is slidably connected inside the movable groove (201). A sealing gasket (203) is fixedly installed on one side of the movable plate (202). The four sealing gaskets (203) are staggered. At the same time, the top of the pressure plate (105) is symmetrically installed above the four movable plates (202). The two positioning frames (204) are rotatably connected to the inside of the two positioning frames (204). A torsion spring (206) is symmetrically sleeved on both sides of the outside of the rotating shaft (205). One end of the torsion spring (206) is fixedly connected to the positioning frame (204), and the other end of the torsion spring (206) is fixedly installed with a mounting block (207), and the mounting block (207) is fixedly connected to the rotating shaft (205). The top of the movable plate (202) is symmetrically equipped with a movable frame (208), and the top of the pressure plate (105) is symmetrically provided with a through groove (209) on one side of the rotating shaft (205), and a support rod (210) is fixedly installed inside the through groove (209), while the movable frame (208) and the support rod (210) are slidably connected. Two sets of mounting brackets (211) are symmetrically installed on opposite sides of the rotating shaft (205), and rollers (212) are rotatably connected between the two mounting brackets (211) in each set. Rotating blocks (213) are fixedly installed on one side of the two mounting blocks (207) on the outside of the rotating shaft (205). Meanwhile, column rods (214) are symmetrically installed on both sides of the rotating blocks (213), and one of the column rods (214) abuts against the movable frame (208). The movable plate (202) has symmetrically provided mounting slots (215) inside, and mounting rods (216) are slidably connected to one side of each of the two mounting slots (215) inside the movable plate (202). One end of the mounting rod (216) is fixedly connected to the movable slot (201), and a telescopic spring (2161) is sleeved on the outer side of the mounting rod (216). Both ends of the telescopic spring (2161) are fixedly connected to the movable plate (202) and the movable slot (201) respectively. A first piston (217) is fixedly installed on one end of the mounting rod (216), and the first piston (217) is slidably connected to the mounting slot (215).

2. The sludge dewatering equipment for municipal water conservancy projects according to claim 1, characterized in that: The top of the pressure plate (105) is fixedly installed on one side of each of the two rotating blocks (213), and a second piston (220) is slidably connected inside the cylinder (218). A movable rod (219) is fixedly installed on one side of the second piston (220). The movable rod (219) is slidably connected to the cylinder (218). A movable frame (221) is slidably connected to the outer side of the movable rod (219). A compression spring (222) is sleeved on the outer side of the movable rod (219) on one side of the movable frame (221). The two ends of the compression spring (222) are fixedly connected to the movable frame (221) and the cylinder (218) respectively. A guide rod (223) is slidably connected inside the movable frame (221) on one side of the movable rod (219). One end of the guide rod (223) is fixedly connected to the cylinder (218).

3. A sludge dewatering device for municipal water conservancy projects according to claim 2, characterized in that: A movable plate (224) is fixedly installed on the side of the movable frame (221) away from the cylinder (218), and a sliding groove (225) is provided through one side of the movable plate (224), and the column rod (214) on the other side is slidably connected to the sliding groove (225). Meanwhile, a connecting pipe (226) is connected through the side of the cylinder (218) away from the movable frame (221), and one end of the connecting pipe (226) away from the cylinder (218) passes through the pressure plate (105) and is connected through the mounting groove (215).

4. The sludge dewatering equipment for municipal water conservancy projects according to claim 1, characterized in that: A fixing plate (106) is fixedly installed on the upper side of one side of the housing (1), and two sets of fixing blocks (107) are symmetrically installed on the fixing plate (106) and the top of the housing (1). A screw (108) is rotatably connected between the two fixing blocks (107) on one side. At the same time, the support frame (103) is threadedly connected to the screw (108). A servo motor (110) is fixedly installed on one side of the top of the fixing plate (106), and the output end of the servo motor (110) passes through the fixing block (107) on one side and is fixedly connected to the screw (108). A limit rod (109) is fixedly installed between the two fixing blocks (107) on the other side, and the support frame (103) is slidably connected to the limit rod (109).

5. A sludge dewatering device for municipal water conservancy projects according to claim 1, characterized in that: The rotating assembly (3) includes a rotating tube (301) rotatably connected to the lower part of the box (1), and two sets of mounting tubes (302) are symmetrically connected to the upper part of the rotating tube (301). Spray nozzles (303) are symmetrically connected to the sides of the two sets of mounting tubes (302) that are far apart. At the same time, a one-way valve is provided inside the spray nozzle (303), and the bottom end of the rotating tube (301) is connected to an inlet tube (304) through a rotary joint.

6. A sludge dewatering device for municipal water conservancy projects according to claim 5, characterized in that: A drive motor (305) is fixedly installed on one side of the bottom of the housing (1), and a first bevel gear (306) is fixedly installed at the output end of the drive motor (305). A limit frame (307) is fixedly installed on the lower outside of the rotating tube (301), and the limit frame (307) is fixedly connected to the housing (1). A second bevel gear (308) is fixedly installed on the lower outside of the rotating tube (301) below the limit frame (307), and the second bevel gear (308) meshes with the first bevel gear (306).

Images