A plate and frame dewaterer system with removable closure

Abstract

This utility model relates to the field of plate and frame dewatering machine systems, and discloses a plate and frame dewatering machine system with a detachable sealed cover. The system includes a frame, a thrust plate, a pressure plate, multiple filter plates, and filter cloth disposed between the filter plates, and a detachable sealed cover mounted on the frame. The sealed cover seals the pressure plate, filter plates, and filter cloth inside. The sealed cover is provided with an odor extraction port for connecting to an external deodorization system. This utility model proposes a plate and frame dewatering machine system with a detachable sealed cover. The sealed cover slides open via a slide rail and pulleys, supporting segmented operation in multiple units. A single person can pull the middle connecting sealed cover to expose the target area, reducing downtime by more than 60%. The transparent material allows for direct observation of key information, early fault location, and reduced ineffective operations. The modular design concept allows for flexible adaptation to different specifications and models of plate and frame dewatering machines, improving market applicability.

Description

Technical Field

[0001] This utility model relates to the technical field of plate and frame dewatering machine systems, and more specifically, to a plate and frame dewatering machine system with a detachable sealed cover. Background Technology

[0002] With economic and social development, people's requirements for living environment are increasing. Plate and frame dewatering machines, as key equipment for deep sludge dewatering in water plants and river sediment treatment, release large amounts of malodorous gases, mainly hydrogen sulfide and ammonia, during high-pressure dewatering. Due to their open structure, these odors directly diffuse into the workshop and surrounding environment, severely deteriorating the working environment for operators and causing environmental pollution. Currently, the mainstream deodorization solution involves installing fixed sealed covers around one or more plate and frame dewatering machines and connecting them to an external deodorization system via pipelines.

[0003] However, existing technologies have significant shortcomings: on the one hand, maintenance is extremely inconvenient. Filter cloth, as a consumable part, needs to be replaced or cleaned regularly, but the fixed sealing cover makes the equipment completely sealed, making daily maintenance work such as filter cloth replacement and equipment inspection extremely difficult. It often requires disassembling a large number of bolts or even using large tools, which increases maintenance costs and downtime. On the other hand, energy consumption and investment are relatively large. The installation of a fixed sealing cover requires consideration of the maximum height of the plate and frame dewatering machine and the provision of space for personnel to walk, resulting in a large deodorization space. According to regulations, the air extraction volume of the dewatering machine room should be no less than 8 times / hour. The large space increases the air volume of the deodorization system, the power of the fan, and the size of the deodorization box, resulting in high investment and operating costs. Utility Model Content

[0004] This utility model provides a plate and frame dewatering machine system with a detachable sealed cover, which solves the technical problems of inconvenient maintenance and high cost in plate and frame dewatering machine systems with detachable sealed covers in related technologies.

[0005] This utility model provides a plate and frame dewatering machine system with a detachable sealed cover, including a frame, a thrust plate, a pressing plate, a multi-layer filter plate and a filter cloth disposed between the filter plates, and a sealed cover detachably mounted on the frame. The sealed enclosure seals the pressure plate, filter plate, and filter cloth inside; The sealed enclosure is equipped with an odor extraction port for connecting to an external deodorization system.

[0006] As a further optimization of this utility model, the sealed cover includes at least one cover unit, and a slide rail is provided on the frame. The cover unit is slidably mounted on the frame via the slide rail to realize the opening and closing of the sealed cover.

[0007] As a further optimization of this utility model, the number of cover units is multiple, and multiple cover units are sequentially spliced ​​together along the length of the frame to form a complete sealed cover.

[0008] As a further optimization of this utility model, the cover unit includes fixed sealing plates at both ends, and the multiple cover units are a sliding sealing cover one, a sliding sealing cover two, and an intermediate connecting sealing cover. One side of the sliding sealing cover one slides into the interior of the sliding sealing cover two, and the other side is blocked by the fixed sealing plate. Two sets of sliding sealing covers, including sliding sealing cover one and sliding sealing cover two, and an intermediate connecting sealing cover are symmetrically arranged, and the two sets of sealing covers are detachably connected.

[0009] As a further optimization of this utility model, a magnetic sealing strip is provided at the contact edge between adjacent cover units.

[0010] As a further optimization of this utility model, a locking buckle is provided between the two connecting sealing covers.

[0011] As a further optimization of this utility model, slide rail baffles are provided at both ends of the slide rail to restrict the slippage of the cover unit.

[0012] As a further optimization of this utility model, the bottom of the cover unit is equipped with pulleys that cooperate with the slide rail.

[0013] As a further optimization of this utility model, the sealing cover is a transparent sealing cover.

[0014] The beneficial effects of this utility model are as follows: 1. The plate and frame dewatering machine system with a detachable sealed cover described in this utility model has a sealed cover that can be opened by sliding through a sliding rail and pulley. It is divided into multiple units such as a sliding sealed cover one, a sliding sealed cover two, and an intermediate connecting sealed cover. It supports segmented opening. Pulling the corresponding intermediate connecting sealed cover can expose the target area. The operation can be completed by a single person, avoiding the cumbersome process of maintenance of traditional fixed covers. It reduces the downtime for filter cloth replacement and filter plate maintenance by more than 60%.

[0015] 2. The plate and frame dewatering machine system with a detachable sealed cover described in this utility model has a transparent sealed cover, which allows operators to directly observe key information such as the uniformity of feed to the filter plate, the damage of the filter cloth, and the movement position of the pressing plate without opening the cover. This allows for early location of faults and precise preparation of tools and spare parts before maintenance, avoiding ineffective operations of troubleshooting after opening the cover, further reducing maintenance time and lowering maintenance labor costs.

[0016] 3. The plate and frame dewatering machine system with a detachable sealing cover described in this utility model has a modular design concept that allows the sealing system to be flexibly adapted to plate and frame dewatering machines of different specifications and models, thereby improving the market applicability of the product. Attached Figure Description

[0017] Figure 1 This is a schematic diagram of the structure of a plate and frame dewatering machine system with a detachable sealed cover proposed in this utility model.

[0018] Figure 2 This is a side sectional view of the sealing cover in a plate and frame dewatering machine system with a detachable sealing cover proposed in this utility model.

[0019] Figure 3 This is a side view of the sealing cover in a plate and frame dewatering machine system with a detachable sealing cover, as proposed in this utility model.

[0020] Figure 4 This is a side view of the fixed sealing plate in a plate and frame dewatering machine system with a detachable airtight cover, as proposed in this utility model.

[0021] Figure 5 This is a schematic diagram of the structure of a sliding sealing cover in a plate and frame dewatering machine system with a detachable sealing cover, as proposed in this utility model.

[0022] Figure 6 This is a schematic diagram of the structure of the intermediate connecting sealing cover in a plate and frame dewatering machine system with a detachable sealing cover, as proposed in this utility model.

[0023] In the picture: 1. Sealed cover; 12. Sliding sealing cover one; 13. Sliding sealing cover two; 14. Intermediate connecting sealing cover; 15. Magnetic sealing strip; 16. Lock; 17. Pulley; 2. Frame; 3. Pressure plate; 4. Filter plate; 5. Filter cloth; 6. Thrust plate; 7. Slide rail; 8. Slide rail baffle; 9. Odor extraction port; 10. Fixed sealing plate. Detailed Implementation

[0024] The subject matter described herein will now be discussed with reference to exemplary embodiments. It should be understood that these embodiments are discussed only to enable those skilled in the art to better understand and implement the subject matter described herein, and changes may be made to the function and arrangement of the elements discussed without departing from the scope of this specification. Various processes or components may be omitted, substituted, or added as needed in the examples. Furthermore, features described in some examples may be combined in other examples.

[0025] like Figures 1 to 6As shown in the figure, the plate and frame dewatering machine system with a detachable sealed cover described in this utility model embodiment includes a frame 2, a thrust plate 6, a pressing plate 3, a multi-layer filter plate 4 and a filter cloth 5 disposed between the filter plates 4, and a sealed cover 1 detachably installed on the frame 2. The sealed enclosure 1 seals the pressing plate 3, filter plate 4 and filter cloth 5 inside; The sealed enclosure 1 is equipped with an odor extraction port 9 for connecting to an external deodorization system.

[0026] Sludge enters the filter chamber formed by filter plate 4 and filter cloth 5 through the feeding system. Under the action of the driving device (such as a hydraulic cylinder, which is not explicitly marked in the document but is a common component of plate and frame filter press), the clamping plate 3 moves along the frame 2 towards the thrust plate 6, applying pressure to the sludge in the filter chamber. At this time, the sealing cover 1 is installed on the frame 2, sealing the entire filter unit and preventing the escape of malodorous gases such as hydrogen sulfide and ammonia generated during sludge dewatering. At the same time, the external deodorization system is activated, forming a negative pressure on the internal space of the sealing cover 1 through the odor extraction port 9, and promptly extracting the generated odor to the deodorization system for treatment.

[0027] When it is necessary to replace filter cloth 5 or repair filter plate 4, first shut down the external deodorization system and the feeding system. After the clamping plate 3 is reset, disconnect the connection structure between the sealing cover 1 and the frame 2, and remove the sealing cover 1 from the frame 2. At this time, the filter plate 4 and filter cloth 5 are fully exposed, and the staff can directly operate to replace or repair them. Compared with the fixed sealing cover, the detachable design does not require the removal of a large number of bolts or the use of large tools. Only one or two people are needed to complete the disassembly and assembly of the sealing cover 1, which reduces the downtime for replacing filter cloth 5 and repairing filter plate 4 by more than 60% and reduces maintenance costs.

[0028] The sealed enclosure 1 includes at least one enclosure unit. A slide rail 7 is provided on the frame 2. The enclosure unit is slidably mounted on the frame 2 via the slide rail 7 to realize the opening and closing of the sealed enclosure 1.

[0029] Closing and sealing stage: Push the cover unit along the slide rail 7 towards the middle of the frame 2 until the cover unit completely covers the area of ​​the pressing plate 3, filter plate 4, and filter cloth 5. At this time, the contact between the cover unit and the frame 2 is initially sealed by the sealing strip. During the dehydration operation, the odor is confined inside the cover unit and extracted through the odor extraction port 9.

[0030] Maintenance phase: When maintenance is required, there is no need to disassemble the cover unit. Simply pull the cover unit along the slide rail 7 towards both ends of the frame 2 to slide the cover unit away from the filter unit area, thereby exposing the filter plate 4 and filter cloth 5. The guiding effect of the slide rail 7 ensures the stability of the cover unit during movement and avoids deviation or jamming.

[0031] Furthermore, there are multiple cover units, which are sequentially spliced ​​together along the length of the frame 2 to form a complete sealed cover 1.

[0032] Based on the length of the filter unit on the frame 2, multiple cover units are pushed sequentially along the slide rail 7 to the splicing position, so that the overlapping structure of adjacent units is interlocked to form a complete sealed space, covering the pressing plate 3, filter plate 4, and filter cloth 5. During dehydration, the odor is collected by the odor extraction port 9 in the complete sealed space.

[0033] Segmented opening and maintenance phase: If only a section of the filter unit (such as the middle part of the filter plate 4) needs to be maintained, only the cover unit of the corresponding area can be slid, without opening all units. For example, when the middle layer filter cloth 5 is damaged, only the cover unit located in the middle is pushed to move along the slide rail 7 to expose the target filter plate 4 and filter cloth 5.

[0034] The cover unit includes fixed sealing plates 10 at both ends. The multiple cover units are sliding sealing cover one 12, sliding sealing cover two 13 and intermediate connecting sealing cover 14. One side of the sliding sealing cover one 12 slides into the interior of the sliding sealing cover two 13, and the other side is blocked by the fixed sealing plate 10. Two sets of sliding sealing cover 12, sliding sealing cover 13 and intermediate connecting sealing cover 14 are symmetrically arranged, and the two sets of sealing covers are detachably connected.

[0035] The sliding sealing cover 12 is inserted into the sliding sealing cover 2 13 and symmetrically spliced. This allows for the individual opening of the corresponding cover unit for different areas, avoiding the large-scale odor escape caused by opening the whole cover. It also reduces the interference of maintenance operations on other parts and improves maintenance efficiency.

[0036] A magnetic sealing strip 15 is provided at the contact edge between adjacent cover units.

[0037] When the cover unit is pushed along the slide rail 7, the contact edges of adjacent units gradually approach each other. The magnetic sealing strip 15 automatically aligns and fits tightly due to the magnetic attraction, filling the tiny gaps between the units. At the same time, the elastic material of the magnetic sealing strip 15 (such as rubber-wrapped magnet) undergoes slight deformation under the adsorption force, further enhancing the sealing effect. During dehydration, even if a slight negative pressure is generated inside the sealed cover 1 due to the suction of odor, the magnetic sealing strip 15 can still maintain a close fit, preventing air from entering from the outside or odor from leaking out of the gaps.

[0038] To facilitate the separation of the two intermediate connecting sealing covers 14, a locking buckle 16 is provided between the two intermediate connecting sealing covers 14.

[0039] The slide rail 7 is equipped with slide rail baffles 8 at both ends to prevent the cover unit from slipping.

[0040] The slide rail baffle 8 effectively prevents the cover unit from slipping off, reducing the component damage rate during equipment maintenance.

[0041] To increase the smoothness of the movement of the cover unit, a pulley 17 that cooperates with the slide rail 7 is installed at the bottom of the cover unit.

[0042] The sealed enclosure 1 is a transparent sealed enclosure. During dewatering operations, operators do not need to open the sealed enclosure 1. They can directly observe key operational information such as the feeding status of the filter plate 4, the filtration status of the filter cloth 5, and the movement position of the pressing plate 3 through the transparent sealed enclosure 1. For example, if sludge leakage is observed on a certain filter cloth 5, the machine can be stopped in time to avoid a decrease in dewatering efficiency or equipment failure due to the inability to observe.

[0043] Before maintenance, the location of the fault can be preliminarily determined through the transparent enclosure, and the corresponding tools and spare parts can be prepared in advance to avoid troubleshooting the fault after opening the enclosure and reduce maintenance downtime.

[0044] The embodiments of the present utility model have been described above, but the present embodiments are not limited to the specific implementation methods described above. The specific implementation methods described above are merely illustrative and not restrictive. Those skilled in the art can make many other forms under the guidance of the present embodiments, all of which are within the protection scope of the present embodiments.

Claims

1. A plate and frame dewatering machine system with a detachable sealed cover, comprising a frame (2), a thrust plate (6) disposed on the frame (2), a clamping plate (3), a multi-layer filter plate (4), and filter cloth (5) disposed between the filter plates (4), characterized in that: It also includes a detachable enclosure (1) mounted on the frame (2); The sealed cover (1) seals the pressing plate (3), filter plate (4) and filter cloth (5) inside; The sealed cover (1) is provided with an odor extraction port (9) for connecting to an external deodorization system; The sealed enclosure (1) includes at least one enclosure unit. A slide rail (7) is provided on the frame (2). The enclosure unit is slidably mounted on the frame (2) via the slide rail (7) to realize the opening and closing of the sealed enclosure (1). The number of cover units is multiple, and multiple cover units are spliced ​​together along the length of the frame (2) to form a complete sealed cover (1). The cover unit includes fixed sealing plates (10) at both ends. The multiple cover units are sliding sealing cover one (12), sliding sealing cover two (13) and intermediate connecting sealing cover (14). One side of sliding sealing cover one (12) slides into the interior of sliding sealing cover two (13), and the other side is blocked by the fixed sealing plate (10). Two sets of sliding sealing cover one (12), sliding sealing cover two (13) and intermediate connecting sealing cover (14) are symmetrically arranged, and the two sets of sealing covers are detachably connected.

2. The plate and frame dewatering machine system with a detachable sealed cover according to claim 1, characterized in that: A magnetic sealing strip (15) is provided at the contact edge between adjacent cover units.

3. The plate and frame dewatering machine system with a detachable sealed cover according to claim 1, characterized in that: A latch (16) is provided between the two connecting sealing covers (14).

4. The plate and frame dewatering machine system with a detachable sealed cover according to claim 1, characterized in that: The slide rail (7) is provided with slide rail baffles (8) at both ends to restrict the slippage of the cover unit.

5. A plate and frame dewatering machine system with a detachable sealed cover according to claim 4, characterized in that: The bottom of the cover unit is equipped with a pulley (17) that cooperates with the slide rail (7).

6. The plate and frame dewatering machine system with a detachable sealed cover according to claim 1, characterized in that: The sealed cover (1) is a transparent sealed cover.

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