Sludge suction dewatering apparatus

Abstract

The utility model relates to sludge treatment technical field, concretely relates to a kind of sludge suction dewatering equipment.A kind of sludge suction dewatering equipment, it includes the vacuum suction device, sedimentation device and filter-pressing device connected in sequence.Vacuum suction device is used to the sludge to be handled is carried out vacuum suction and is sent to the sludge after vacuum suction into sedimentation device.Sedimentation device is used to the sludge after vacuum suction is settled and is sent to the sludge after settlement into filter-pressing device and carries out filter-pressing.The suction dewatering equipment provided by the utility model is settled between vacuum suction and filter-pressing device by sedimentation device, through sedimentation device, not only can some larger impurities in sludge be settled, simultaneously, the viscosity of sludge after treatment by sedimentation device is greatly reduced and flowability is better, so that the filter-pressing device can effectively separate solid-liquid in sludge, further improve the filter-pressing effect of filter-pressing device.

Description

Technical Field

[0001] This utility model relates to the field of sludge treatment technology, specifically to a sludge suction and dewatering device. Background Technology

[0002] With increasing environmental awareness, numerous wastewater treatment plants have been built and put into operation in major cities. However, this process generates a large amount of sludge. Sludge consists of solid matter from the original wastewater and solid matter produced during wastewater treatment. Sludge has high water content, high organic matter content, and is easily decomposed and emits foul odors, placing a significant burden on the surrounding environment. Therefore, proper sludge treatment is necessary. Sludge treatment generally involves processes such as concentration, conditioning, dewatering, stabilization, drying, or incineration to reduce volume, stabilize, and render the sludge harmless. In existing sludge treatment equipment, solid sludge lumps after dewatering tend to adhere to the filter plates, affecting the dewatering effect and ultimately impacting the overall sludge treatment efficiency. Utility Model Content

[0003] In order to solve the technical problem that solid sludge blocks after dewatering in existing sludge treatment equipment tend to adhere to the filter plate, resulting in poor dewatering effect, this utility model provides a sludge suction dewatering device.

[0004] This utility model adopts the following technical solution: a sludge suction and dewatering device, which includes a vacuum suction device, a settling device, and a filter press device connected in sequence. The vacuum suction device is used to vacuum suction the sludge to be treated and transport the vacuum-suctioned sludge to the settling device. The settling device is used to settle the vacuum-suctioned sludge and transport the settled sludge to the filter press device for filter pressing. The filter press device includes a frame, a pressing plate, a scraping assembly, a thrust plate, a pulling plate mechanism, and multiple filter plates. The thrust plate and the pressing assembly are respectively arranged on both sides of the frame along the horizontal direction. Multiple filter plates are slidably installed on the frame along the horizontal direction and are all located between the thrust plate and the filter press assembly. The pressing plate is aligned with the filter plates and can reciprocate along the horizontal direction of the frame. The pressing plate is used to provide filter pressing pressure when pushing the filter plates to the extreme position towards the thrust plate. The pulling plate mechanism is installed on the frame and is used to drive the filter plates away from the thrust plate one by one. The sludge scraping assembly includes a first drive component, a second drive component, and a scraping section. The first drive component is mounted on the frame and located above the filter plate. The two ends of the second drive component are connected to the first drive component and the scraping section, respectively. The first drive component drives the second drive component and the scraping section to reciprocate horizontally above the filter plate. The second drive component drives the scraping section to reciprocate vertically, thereby scraping the sludge from the filter plate's filter surface.

[0005] As a further improvement of this utility model, the sludge scraping part includes a connecting rod and two sludge scraping plates. The connecting rod is fixedly installed on the side of the driving component two away from the driving component one in the horizontal direction. The sludge scraping plate is installed on the side of the connecting rod facing the filter press surface. The sludge scraping plate is used to scrape off the mud on the filter press surface of the filter plate when it reciprocates in the vertical direction.

[0006] In a typical technical solution of this utility model, a liquid inlet is provided on the thrust plate, and each filter plate is provided with a through hole aligned with the liquid inlet. Filter cloth is installed on the filter plate's pressing surface. Multiple filter plates abut against each other in sequence during pressing, thereby forming a liquid inlet area with the through holes of multiple filter plates and forming a filter cavity between the filter cloths of two adjacent filter plates. The liquid inlet area is connected to the liquid inlet and the filter cavity respectively.

[0007] As a further improvement of this utility model, the filter press device also includes a driving component three, which is fixedly installed on the frame. One end of the pressing plate is fixedly connected to the driving component three, and the other end of the pressing plate is aligned with the filter plate.

[0008] As a further improvement of this utility model, the frame includes a pair of mounting rods arranged in parallel along the horizontal direction and two pairs of support columns respectively arranged on the left and right sides of the mounting rods. The filter plate is installed between the pair of mounting rods and can slide along the horizontal direction of the mounting rods.

[0009] As a further improvement of this utility model, at least one roller is also installed on the side of the clamping plate facing the mounting rod, and the roller is rolled on the mounting rod.

[0010] As a further improvement of this utility model, the mud scraping assembly also includes a rectangular mounting frame with a limiting slide plate slidably mounted on the mounting frame in the horizontal direction. One end of the driving component one is fixedly mounted on the mounting frame and located above the driving component three, and the other end of the driving component one is connected to the limiting slide plate. The driving component two is fixedly mounted below the limiting slide plate.

[0011] As a further improvement of this utility model, the filter press device also includes multiple baffles, which are fixedly installed on the frame and are used to form a sludge storage chamber. The opening of the sludge storage chamber faces the filter plate and is used to collect the sludge after the filter plate has been pressed.

[0012] As a further improvement of this utility model, the sedimentation device includes a sedimentation tank 1 and a sedimentation tank 2. The liquid inlet of sedimentation tank 1 is connected to the liquid outlet of the vacuum suction device, the liquid outlet of sedimentation tank 1 is connected to the liquid inlet of sedimentation tank 2, and the liquid outlet of sedimentation tank 2 is connected to the liquid inlet. Sedimentation tank 2 is also connected to a storage tank 1 for providing alkaline solution to sedimentation tank 2 and a storage tank 2 for providing flocculant to sedimentation tank 2.

[0013] As a further improvement of this utility model, the sludge suction and dewatering equipment also includes an equalization tank. The equalization tank is equipped with a baffle plate, which is used to divide the equalization tank into a first chamber and a second chamber. The first chamber is used to store the sludge to be treated, and the second chamber is connected to the outlet end of the filter press device and is used to store the wastewater after filter press treatment.

[0014] The technical solution provided by this utility model has the following beneficial effects:

[0015] (1) The sludge suction and dewatering device provided by this utility model can perform vacuum suction, sedimentation and filter press operations on sludge in sequence, thereby achieving effective treatment of sludge and improving sludge treatment efficiency. By providing a sedimentation device between the vacuum suction and filter press devices, not only can some larger impurities in the sludge be settled, but the viscosity of the sludge treated by the sedimentation device is greatly reduced and its fluidity is better, which facilitates the filter press device to effectively separate the solid and liquid in the sludge and further improves the filter press effect.

[0016] (2) The sludge suction and dewatering device provided by this utility model is equipped with a sludge scraping component on its filter press device. The sludge scraping component is used to scrape off the sludge adhering to the filter press surface of the filter plate after the filter press is completed, so that the filter press surface of the filter plate is kept clean and the sludge on the filter press surface is prevented from affecting the filter press effect of the next filter press, thereby improving the filter press efficiency of the entire filter press device. Attached Figure Description

[0017] Figure 1 This is a schematic diagram of the structure of a sludge suction and dewatering device provided by this utility model.

[0018] Figure 2 A three-dimensional structural diagram of the filter press device provided by this utility model.

[0019] Figure 3 This is a cross-sectional schematic diagram of the filter press device provided by this utility model.

[0020] Figure 4 A schematic diagram of the structure of the filter press device provided by this utility model when the sludge scraping component is not installed.

[0021] The following are marked in the diagram: 1. Vacuum suction device; 2. Settling device; 21. Settling tank one; 22. Settling tank two; 23. Storage tank one; 24. Storage tank two; 3. Filter press device; 31. Frame; 32. Pressing plate; 331. Drive component one; 332. Drive component two; 333. Connecting rod; 334. Sludge scraper; 335. Mounting bracket; 336. Limiting slide plate; 34. Thrust plate; 35. Filter plate; 36. Drive component three; 4. Equalization tank. Detailed Implementation

[0022] To make the objectives, technical solutions, and advantages of this utility model clearer, the present utility model will be further described in detail below with reference to the accompanying drawings and embodiments. It should be understood that the specific embodiments described herein are only used to explain this utility model and are not intended to limit this utility model.

[0023] This embodiment provides a sludge suction and dewatering device, such as... Figure 1 As shown, it includes a vacuum suction device 1, a settling device 2, and a filter press device 3 connected in sequence. The outlet of the vacuum suction device 1 is connected to the inlet of the settling device 2. The vacuum suction device 1 is used to vacuum suction the sludge to be treated and transport the vacuum-suctioned sludge into the settling device 2. The outlet of the settling device 2 is connected to the inlet of the filter press device 3. The settling device 2 is used to settle the vacuum-suctioned sludge and transport the settled sludge to the filter press device 3 for filtration. The filter press device 3 is used to filter the sludge treated by the settling device 2, so that the sludge and water in the sludge are separated. The sludge will form a cake, and the filtered water can be discharged into the sewage treatment system. In this embodiment, by setting up the vacuum suction device 1, it is possible to remove impurities such as sludge and sewage from underground pools, ditches, and well bottoms that need to be cleaned, especially in situations where it is inconvenient for cleaning personnel to go down to clean. The settling device 2 can settle the sludge after vacuum suction. During the settling process, flocculants are usually used to improve the sludge filtration effect, so that the subsequent filter press device 3 can effectively filter the sludge. Therefore, in this embodiment, by setting up the vacuum suction device 1, the settling device 2 and the filter press device 3 connected in sequence, the sludge can be effectively treated and the sludge treatment efficiency can be improved.

[0024] Please refer to Figure 1 The sludge suction and dewatering device may also include an equalization tank 4. The equalization tank 4 is equipped with a baffle plate, which divides the equalization tank 4 into two chambers: chamber one for storing sludge to be treated, and chamber two for storing wastewater after filtration by the filter press 3. The wastewater after filtration by the filter press 3 can be collected in chamber two and transported to wastewater treatment equipment for unified treatment.

[0025] In this embodiment, the regulating tank 4 and the vacuum suction device 1 can be connected by a pipe. The pipe can be a suction hose with a diameter of 4 inches.

[0026] Please refer to Figure 2 and Figure 3The filter press device 3 includes a frame 31, a pressing plate 32, a sludge scraping assembly, a thrust plate 34, a pulling plate mechanism, and multiple filter plates 35. The frame 31 may be a cuboid structure. The frame 31 may include a pair of horizontally parallel mounting rods and two pairs of support columns located on the left and right sides of the mounting rods, respectively, to support the pair of mounting rods. The thrust plate 34 is located at the connection between the left pair of support columns and the mounting rods, with one end of the thrust plate 34 fixedly mounted on one of the mounting rods and the other end fixedly mounted on the other mounting rod. The pressing plate 32 is mounted on the right side of the frame 31 and aligned horizontally with the thrust plate 34. Multiple filter plates 35 are mounted between the pair of mounting rods and are arranged parallel to each other along the horizontal direction of the mounting rods. Each filter plate 35 is positioned between the thrust plate 34 and the pressing plate 32, and each filter plate 35 can slide along the horizontal direction of the mounting rods. The leftmost filter plate 35 is aligned with the thrust plate 34, and the rightmost filter plate 35 is aligned with the pressure plate 32. The pressure plate 32 can reciprocate horizontally. When the pressure plate 32 moves towards the filter plate 35, it exerts pressure on the filter plate 35, pushing it to the left until the filter plates 35 abut against each other, with the leftmost filter plate 35 abutting against the thrust plate 34. At this point, under the combined action of the thrust plate 34 and the pressure plate 32, the multiple filter plates 35 can perform filter pressing, thereby achieving filter pressing treatment of the sludge settled by the settling device 2. There can be two plate-pulling mechanisms, each mounted on a separate mounting rod. The plate-pulling mechanism is activated after the pressure plate 32 pushes the filter plates 35 to complete the filter pressing operation and moves to its original position to the right. The plate-pulling mechanism is used to sequentially separate the multiple filter plates 35. The plate-pulling mechanism can be a common type of plate-pulling mechanism in the prior art. For example, it can be driven by a hydraulic motor or torque motor through a reduction gear to move a robotic arm. The robotic arm is used to clamp the filter plate 35, and the hydraulic motor drives the robotic arm to work together to separate the filter plate 35. After separation, some of the sludge on the filter plate 35 will fall off due to gravity, and some will adhere to the filter surface of the filter plate 35. At this time, the sludge scraping assembly can be activated to perform sludge scraping. The sludge scraping assembly includes a first drive component 331, a second drive component 332, and a scraping part. The first drive component 331 is mounted on the frame 31 and located above the filter plate 35. One end of the second drive component 332 is fixedly connected to the side of the first drive component 331 away from the frame 31, and the other end of the second drive component 332 is connected to the scraping part. Drive component 331 drives drive component 332 and the scraper to reciprocate horizontally above the filter plate 35 along the frame 31. Drive component 332 drives the scraper to reciprocate vertically, so that the scraper can scrape off the residual sludge on the filter plate 35. When the plate pulling mechanism separates one of the filter plates 35 from the other filter plates 35, the scraper assembly can be activated to scrape the filter pressing surface of the filter plate 35.First, drive component 331 is activated. Drive component 331 drives drive component 332 and the scraper to move to the left until the scraper is aligned vertically with the filter plate 35 whose filter surface needs to be scraped. Then, drive component 331 is deactivated, and drive component 332 is activated. Drive component 332 drives the scraper to move up and down vertically, allowing it to scrape off the sludge adhering to the filter plate 35. In this embodiment, when the plate pulling mechanism separates the filter plate 35 from multiple filter plates 35, it can be manually observed whether sludge adheres to the filter surface of the separated filter plate 35. If sludge is present, the scraper assembly can be activated to scrape it off. If no sludge is present, the scraper assembly does not need to be activated, and the plate pulling mechanism can be activated again to separate the next filter plate 35 from the other filter plates 35.

[0027] Please refer to Figure 3 and Figure 4 The filter press 3 may also include a drive component 36 connected to the pressing plate 32. The drive component 36 is fixedly installed on the frame 31 on the side opposite to the thrust plate 34. The other end of the drive component 36 is connected to the pressing plate 32, and the drive component 36 is used to drive the pressing plate 32 to reciprocate along the horizontal direction of the frame 31.

[0028] At least one roller is also installed on the side of the clamping plate 32 facing the mounting rod, and the roller is rolled on the mounting rod. By setting the roller between the clamping plate 32 and the mounting rod, the stability of the clamping plate 32 when it reciprocates in the horizontal direction can be improved. At the same time, the force on both sides of the clamping plate 32 can be made more uniform, thereby providing a more uniform filtration pressure to the filter plate 35, thus improving the filtration effect of the filter plate 35.

[0029] Understandably, a pressure gauge can also be installed on the thrust plate 34 to monitor the pressure exerted on the thrust plate 34 by the filter plate 35. Operators can observe the filtration status of the filter press 3 by monitoring the real-time pressure readings of the pressure gauge. The thrust plate 34 has a liquid inlet, and each aluminum plate has a through hole aligned with the liquid inlet. Filter cloth is installed on the filtration surface of the filter plate 35. During filtration, multiple filter plates 35 abut against each other sequentially, allowing the through holes on the multiple filter plates 35 to form a liquid inlet area, and a filter cavity to be formed between the filter cloths of adjacent filter plates 35. The liquid inlet area connects to the liquid inlet and the filter cavity. During filtration, the drive unit 36 ​​is activated first, which drives the clamping plate 32 towards the filter plate 35. The clamping plate 32 pushes the filter plate 35 towards the thrust plate 34 until the multiple filter plates 35 abut against each other. Then the inlet is opened, and the sludge settled by the settling device 2 can enter the inlet area through the inlet, and then enter multiple filter chambers in sequence through multiple inlet areas. At the same time, the pressing plate 32 is pushed to continuously exert pressure on the filter plate 35, and the sludge in the filter chamber will undergo a pressure filtration operation.

[0030] Please refer to Figure 3 The sludge scraping unit may include a connecting rod 333 and two scraper blades 334. The connecting rod 333 is fixedly mounted horizontally on the side of the second drive member 332 away from the first drive member 331. The two scraper blades 334 are symmetrically arranged on the left and right sides of the connecting rod 333, and each scraper blade 334 faces the filter press surface. The scraper blades 334 are used to scrape the sludge on the filter press surface of the filter plate 35 when they reciprocate in the vertical direction. The purpose of setting two scraper blades 334 is that the scraper blade 334 on the left can scrape the sludge on the right side of the filter plate 35, and the scraper blade 334 on the right can scrape the sludge on the left side of the filter plate 35, thereby realizing the ability to scrape the sludge on different filter press surfaces of multiple filter plates 35.

[0031] In this embodiment, the sludge on the filter plate 35 can also be scraped off through the following operation: If the sludge to be treated on the filter plate 35 is located on the left side of the filter plate 35, the first drive member 331 drives the second drive member 332 and the scraper to move to the right side of the filter plate 35 to be scraped off. Then, the second drive member 332 controls the scraper to move downwards until the scraper faces the filter plate 35. Then, the first drive member 331 drives the second drive member 332 and the scraper to move towards the filter plate 35 until the scraper 334 on the right side contacts the filter plate 35. Then, the second drive member 332 is activated, and the second drive member 332 drives the scraper 334 to reciprocate in the vertical direction, thereby achieving the purpose of scraping off the sludge on the filter press surface on the left side of the filter plate 35. Therefore, by setting up a sludge scraping assembly, this embodiment can effectively scrape off the sludge that has fallen off the filter plate 35, so that the filter plate 35 can effectively filter the sludge in the next round of filtration, thereby improving the filtration effect of the entire filter press device 3.

[0032] Please refer to Figure 2 and Figure 3 The sludge scraping assembly also includes a rectangular mounting bracket 335, which is mounted above the frame 31. A limiting slide plate 336 is slidably mounted on the mounting bracket 335 in the horizontal direction, with both ends of the limiting slide plate 336 slidably mounted on the mounting bracket 335. One end of the drive component 331 is fixedly mounted on the mounting bracket 335 and located above the drive component 36, while the other end of the drive component 331 is fixedly connected to the limiting slide plate 336. One end of the drive component 36 is fixedly mounted below the limiting slide plate 336, while the other end of the drive component 36 is fixedly connected to the connecting rod 333. By setting the mounting bracket 335 and the limiting slide plate 336, the stability of the drive component 331 in driving the drive component 332 and the sludge scraping part during movement can be improved, so that the drive component 331 can smoothly and stably drive the drive component 332 and the sludge scraping part to reciprocate in the horizontal direction.

[0033] It is understandable that drive component 1 331, drive component 2 332, and drive component 3 36 can all be cylinders.

[0034] The filter press 3 may also include multiple baffles, all of which are fixedly installed on the frame 31. These baffles form a sludge storage chamber. The opening of the sludge storage chamber faces the filter plates 35, and the opening area of ​​the sludge storage chamber is larger than the area enclosed by the range of movement of the filter plates 35 on the frame 31. This arrangement ensures that the sludge on the multiple filter plates 35 falls entirely into the sludge storage chamber under the influence of gravity and the scraper 334, enabling the sludge storage chamber to collect the sludge after filtration by the filter plates 35.

[0035] The vacuum suction device 1 may include a vacuum suction tank and a vacuum suction system. The vacuum suction system is used to remove air from the vacuum suction tank, creating a negative pressure environment inside the vacuum suction tank. Under negative pressure conditions, external sludge is drawn into the vacuum suction tank through a suction tank connected to the top of the vacuum suction tank.

[0036] The settling device 2 may include a settling tank 1 21 and a settling tank 22. The inlet of settling tank 1 21 is connected to the outlet of the vacuum suction tank, and the outlet of settling tank 1 21 is connected to the inlet of settling tank 22. The outlet of settling tank 22 is connected to the inlet of the thrust plate 34. Settling tank 22 is also connected to a storage tank 1 23 for supplying alkaline solution to settling tank 22 and a storage tank 24 for supplying flocculant to settling tank 22. In actual operation, after the vacuum suction device 1 completes vacuum suction, the outlet of the vacuum suction tank can be opened, and the sludge after vacuum suction can enter settling tank 1 21 for preliminary sedimentation. The sludge after preliminary sedimentation can be pumped into settling tank 22. During sedimentation in settling tank 22, a certain amount of alkaline solution is added to settling tank 22 and stirred evenly. Adding alkali reduces the viscosity of the sludge, making it easier to flow and facilitating the separation of solid impurities from water. After the alkali has fully reacted with the sludge, flocculant is added to settling tank 22 and stirred evenly. The main function of adding flocculant is to enhance solid-liquid separation of the sludge, improve its dewatering performance, and thus enhance the sludge dewatering effect. In this embodiment, the alkali can be calcium hydroxide or sodium hydroxide, and the flocculant can be polyacrylamide. After settling in settling tank 22, the pump connected to settling tank 2 is turned on, and the sludge after settling in settling tank 2 is pumped through the inlet of thrust plate 34 to filter press 3 for filter pressing.

[0037] The following describes the workflow of the entire sludge suction and dewatering device: First, the vacuum suction system is turned on, and the sludge to be treated in chamber one is transported to the vacuum suction tank by a pump. The vacuum suction tank is used to vacuum-suction the incoming sludge. After the vacuum suction tank has finished processing, the outlet of the vacuum suction tank and the inlet of settling tank 21 are opened. The sludge treated by vacuum suction in the vacuum suction tank can enter the settling tank 21 through the pipeline and settle there. After the sludge in settling tank 21 has settled, the sludge in settling tank 21 is transported to settling tank 22 by a pump. Alkali solution is added to settling tank 22 and stirred evenly. After the alkaline solution and sludge have completely reacted, a flocculant (such as polyacrylamide) is added to the settling tank 22 and stirred evenly. After the flocculant and sludge have completely reacted, the drive unit 36 ​​is activated. The drive unit 36 ​​drives the clamping plate 32 to move towards the filter plate 35. Under the action of the clamping plate 32, the leftmost filter plate 35 abuts against the thrust plate 34, and the other filter plates 35 abut in sequence. At this time, the through holes on the multiple filter plates 35 can form a liquid inlet area, and a filter cavity is formed between two adjacent filter plates 35. The filter plates 35 are also provided with liquid outlet holes around their perimeter, and the liquid outlet holes of the multiple filter plates 35 can form a liquid outlet channel, which is also connected to the filter cavity. After the filter press device 3 has completed the pre-filter press preparations, the sludge in the settling tank 22 is pumped through the liquid inlet of the thrust plate 34 to the filter press device 3 for filter press. After filtration is completed, the drive unit 36 ​​moves the clamping plate 32 away from the filter plate 35 and back to its original position. Once the clamping plate 32 is back in its original position, the plate-pulling mechanism is activated. This mechanism moves the rightmost filter plate 35 to the desired position. After the filter plate 35 is in the correct position, it can be observed whether there is any sludge on it that needs cleaning. If there is sludge, the scraping assembly can be activated. If there is no sludge, the scraping assembly does not need to be activated. At this point, the plate-pulling mechanism can be activated again, pulling the second filter plate 35 on the right to the left, separating it from the third filter plate 35. After each separation of the filter plates by the plate-pulling mechanism, it is necessary to observe whether there is any sludge residue on the filter plate 35's surface to determine if scraping is required. If sludge needs to be removed from the right side of the filter plate 35, first activate drive component 331, causing drive component 331 to move drive component 332 and the scraper to the right side of the filter plate 35. Then activate drive component 332, lowering the scraper to be flush with the filter plate 35. Next, activate drive component 331, causing the scraper 334 to contact the filter plate 35. Finally, activate drive component 332, causing it to move the scraper 334 back and forth along the vertical direction of the filter plate, thereby removing the sludge from the right side of the filter plate 35.As described above, the sludge suction and dewatering device provided in this embodiment can sequentially perform vacuum suction, sedimentation, and filter press operations on sludge, thereby effectively treating the sludge and improving its treatment efficiency. Furthermore, in this embodiment, a sedimentation device 2 is provided between the vacuum suction and filter press 3. This sedimentation device 2 not only settles larger impurities in the sludge, but also significantly reduces the viscosity and improves the fluidity of the sludge after treatment, facilitating effective solid-liquid separation by the filter press 3 and further enhancing its filtration effect.

[0038] The above are merely preferred embodiments of the present utility model and are not intended to limit the present utility model. Any modifications, equivalent substitutions, and improvements made within the spirit and principles of the present utility model should be included within the protection scope of the present utility model.

Claims

1. A sludge suction and dewatering device, characterized in that, It includes a vacuum suction device (1), a settling device (2), and a filter press device (3) connected in sequence; the vacuum suction device (1) is used to vacuum suction the sludge to be treated and transport the vacuum-suctioned sludge to the settling device (2); the settling device (2) is used to settle the vacuum-suctioned sludge and transport the settled sludge to the filter press device (3) for filter pressing; The filter press device (3) includes a frame (31), a pressing plate (32), a scraping assembly, a thrust plate (34), a plate pulling mechanism, and multiple filter plates (35); the thrust plate (34) and the pressing assembly are respectively arranged on both sides of the frame (31) along the horizontal direction of the frame (31); multiple filter plates (35) are sequentially slidably installed on the frame (31) along the horizontal direction of the frame (31) and are all located between the thrust plate (34) and the filter press assembly; the pressing plate (32) is aligned with the filter plates (35) and can reciprocate along the horizontal direction of the frame (31), and the pressing plate (32) is used to provide filter pressure when pushing the filter plates (35) to move to the extreme position towards the thrust plate (34); the plate pulling mechanism The structure is installed on the frame (31) and is used to drive the filter plates (35) away from the thrust plate (34) one by one; the sludge scraping assembly includes a first drive component (331), a second drive component (332) and a sludge scraping part. The first drive component (331) is installed on the frame (31) and located above the filter plates (35). The two ends of the second drive component (332) are respectively connected to the first drive component (331) and the sludge scraping part; the first drive component (331) is used to drive the second drive component (332) and the sludge scraping part to reciprocate in the horizontal direction above the filter plates (35). The second drive component (332) is used to drive the sludge scraping part to reciprocate in the vertical direction, thereby scraping the filter surface of the filter plates (35).

2. The sludge suction and dewatering equipment as described in claim 1, characterized in that, The sludge scraping part includes a connecting rod (333) and two scraper blades (334). The connecting rod (333) is fixedly installed on the side of the second driving member (332) away from the first driving member (331) in the horizontal direction. The scraper blades (334) are installed on the side of the connecting rod (333) facing the filter press surface. The scraper blades (334) are used to scrape the sludge on the filter press surface of the filter plate (35) when reciprocating in the vertical direction.

3. The sludge suction and dewatering equipment as described in claim 1, characterized in that, The thrust plate (34) is provided with a liquid inlet, and each of the filter plates (35) is provided with a through hole aligned with the liquid inlet. Filter cloth is installed on the filter pressing surface of the filter plate (35). Multiple filter plates (35) abut against each other in sequence during filtration, thereby forming a liquid inlet area with the through holes of multiple filter plates (35) and forming a filter cavity between the filter cloths of two adjacent filter plates (35). The liquid inlet area is connected to the liquid inlet and the filter cavity respectively.

4. The sludge suction and dewatering equipment as described in claim 1, characterized in that, The filter press (3) also includes a drive component three (36), which is fixedly installed on the frame (31). One end of the pressing plate (32) is fixedly connected to the drive component three (36), and the other end of the pressing plate (32) is aligned with the filter plate (35).

5. The sludge suction and dewatering equipment as described in claim 1, characterized in that, The frame (31) includes a pair of mounting rods arranged in parallel along the horizontal direction and two pairs of support columns respectively located on the left and right sides of the mounting rods. The filter plate (35) is installed between the pair of mounting rods and can slide along the horizontal direction of the mounting rods.

6. The sludge suction and dewatering equipment as described in claim 5, characterized in that, At least one roller is also installed on the side of the clamping plate (32) facing the mounting rod, and the roller is rolled on the mounting rod.

7. The sludge suction and dewatering equipment as described in claim 4, characterized in that, The sludge scraping assembly also includes a rectangular mounting bracket (335) with a limiting slide plate (336) slidably mounted on the mounting bracket (335) in the horizontal direction. One end of the first driving component (331) is fixedly mounted on the mounting bracket (335) and located above the third driving component (36). The other end of the first driving component (331) is connected to the limiting slide plate (336). The second driving component (332) is fixedly mounted below the limiting slide plate (336).

8. The sludge suction and dewatering equipment as described in claim 1, characterized in that, The filter press (3) also includes multiple baffles, which are fixedly installed on the frame (31). The multiple baffles are used to form a sludge storage cavity. The opening of the sludge storage cavity faces the filter plate (35). The sludge storage cavity is used to collect the sludge after the filter plate (35) has been pressed.

9. The sludge suction and dewatering equipment as described in claim 3, characterized in that, The settling device (2) includes a settling tank 1 (21) and a settling tank 2 (22). The liquid inlet of the settling tank 1 (21) is connected to the liquid outlet of the vacuum suction device (1). The liquid outlet of the settling tank 1 (21) is connected to the liquid inlet of the settling tank 2 (22). The liquid outlet of the settling tank 2 (22) is connected to the liquid inlet. The settling tank 2 (22) is also connected to a storage tank 1 (23) that provides alkaline solution to the settling tank 2 (22) and a storage tank 2 (24) that provides flocculant to the settling tank 2 (22).

10. The sludge suction and dewatering equipment as described in claim 1, characterized in that, The sludge suction and dewatering equipment also includes an equalization tank (4), which is equipped with a baffle plate. The baffle plate is used to divide the equalization tank (4) into a first chamber and a second chamber. The first chamber is used to store the sludge to be treated, and the second chamber is connected to the liquid outlet of the filter press (3). The second chamber is used to store the wastewater after filter press treatment.

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