A sludge dewatering device for solid waste treatment

Abstract

The utility model provides a kind of sludge dewatering device for solid waste treatment, it is related to solid waste treatment technical field, including plate-and-frame filter press main body, plate-and-frame filter press main body includes frame and multiple filter plates in the frame, frame is equipped with sliding block, frame top is equipped with multiple equidistance blow pipes, multiple blow pipes are connected by connecting block one, and blow pipe export is towards the area between adjacent filter plate, sliding block one end is fixedly connected with blow pipe by connecting piece, frame bottom is equipped with discharge port, connecting structure for butt joint rotary kiln is equipped at discharge port, sliding block is directly connected with blow pipe by connecting piece, make blow pipe with filter plate linkage expansion synchronous movement, ensure that blow pipe export is always accurate alignment the area between adjacent filter plate, effectively avoid the deviation of alignment and sweep blind area caused by blow gas assembly and filter plate action independent in prior art, significantly reduce the residue of mud cake on filter plate surface and gap, improve discharge efficiency.

Description

Technical Field

[0001] This utility model relates to the field of solid waste treatment technology, and in particular to a sludge dewatering device for solid waste treatment. Background Technology

[0002] In the field of solid waste treatment, sludge dewatering is a key step in achieving sludge reduction and harmless treatment. Its treatment effect directly affects the efficiency of subsequent terminal disposal processes such as incineration and landfill. At present, plate and frame filter presses are widely used in sludge treatment scenarios that require deep dewatering due to their advantages such as high dewatering efficiency, low moisture content of sludge cake, and stable operation. They are especially suitable for the pretreatment process of subsequent docking with high-temperature incineration in rotary kilns.

[0003] The basic working process of existing plate and frame filter presses is as follows: sludge is pressed and dewatered in the closed state of the filter plates to form a solid sludge cake. After dewatering, multiple filter plates are driven to unfold in conjunction by sliding blocks, allowing the sludge cake to fall naturally to the conveying device below. However, in practical applications, due to the complex composition of sludge, it may contain sticky organic matter, fibrous impurities, etc., which makes the sludge cake easy to stick to the surface of the filter plates or remain in the gaps between adjacent filter plates, resulting in incomplete unloading. Although the air blowing component can effectively remove some of the sludge cake, the unfolding action of the air blowing component and the filter plates is independent of each other, requiring an additional drive mechanism to control the air blowing position. This can easily lead to misalignment between the air blowing pipe and the gap between the filter plates, resulting in blind spots in the blowing process. Moreover, the air blowing pipe is mostly fixed or manually adjustable, which cannot adapt to the dynamic spacing changes when the filter plates unfold in conjunction. This not only affects the blowing effect but may also interfere with the filter plates due to improper positioning, increasing the risk of equipment failure.

[0004] Therefore, it is necessary to provide a new sludge dewatering device for solid waste treatment to solve the above-mentioned technical problems. Utility Model Content

[0005] To solve the above-mentioned technical problems, this utility model provides a sludge dewatering device for solid waste treatment.

[0006] This utility model provides a sludge dewatering device for solid waste treatment, comprising: a plate and frame filter press body, the plate and frame filter press body including a frame and multiple filter plates disposed within the frame, a sliding block on the frame for driving the filter plates to unfold in linkage, multiple equidistant air blowing pipes on the top of the frame, the multiple air blowing pipes being connected to each other by connecting blocks, and the outlets of the multiple air blowing pipes all facing the area between adjacent filter plates, a connecting member fixedly provided at one end of the sliding block, the other end of the connecting member being fixedly connected to the air blowing pipe, a discharge port opened at the bottom of the frame, and a connecting structure for docking with a rotary kiln provided at the discharge port.

[0007] Preferably, the top of the air blowing pipe is provided with a bracket, and the top of the frame is provided with a slide rail extending along the filter plate arrangement direction, and the bracket is slidably connected to the slide rail.

[0008] Preferably, the connecting member is a connecting rod, the connecting rod has a U-shaped structure, one end of the connecting rod is fixedly connected to the bracket, and the other end of the connecting rod is fixedly connected to the sliding block.

[0009] Preferably, the top of the air blowing pipe is provided with a bracket, and the top of the frame is provided with a slide rail extending along the filter plate arrangement direction, and the bracket is slidably connected to the slide rail.

[0010] Preferably, the outlet end of the air blowing pipe is provided with a flat nozzle, and the opening width of the nozzle is adapted to the thickness of the filter plate.

[0011] Preferably, a blower is provided at the top of the frame, and multiple hoses are arranged around the outside of the blower, with one end of each hose fixedly connected to an air blowing pipe.

[0012] Preferably, the connection structure for docking the rotary kiln is a flange, the end face of which is provided with an annular sealing groove, the sealing groove is embedded with a high-temperature resistant rubber sealing gasket, and at least 6 mounting holes are evenly provided on the flange for bolt connection with the rotary kiln feed inlet.

[0013] Compared with related technologies, the sludge dewatering device for solid waste treatment provided by this utility model has the following beneficial effects: The sliding block is directly connected to the air blowing pipe by the connector, so that the air blowing pipe moves synchronously with the filter plate. This ensures that the outlet of the air blowing pipe is always accurately aligned with the area between adjacent filter plates, effectively avoiding the alignment deviation and purging blind area caused by the independent movement of the air blowing component and the filter plate in the existing technology. This significantly reduces the residue of mud cake on the surface and gap of the filter plate and improves the unloading efficiency.

[0014] Multiple air-blowing pipes are connected by a connecting block to form a whole. With the synchronous linkage of the sliding block, it can adapt to the dynamic spacing changes during the unfolding of the filter plate. This solves the problem that fixed layout or manually adjustable air-blowing pipes cannot adapt to spacing changes. It not only ensures the purging effect, but also avoids positional interference between the air-blowing pipes and the filter plate, thus extending the service life of the equipment. Attached Figure Description

[0015] Figure 1 A schematic diagram of a preferred embodiment of a sludge dewatering device for solid waste treatment provided by this utility model; Figure 2 for Figure 1 The diagram shows the structure of the filter plate. Figure 3 for Figure 1 The diagram shows the structure of the air blowing pipe.

[0016] The following are the labels in the diagram: 1. Frame; 2. Filter plate; 3. Sliding block; 4. Air blowing pipe; 5. Connecting block one; 6. Discharge port; 7. Support; 8. Slide rail; 9. Connecting rod; 10. Protrusion one; 11. Straight groove one; 12. Nozzle; 13. Blower; 14. Hose; 15. Flange; 16. Mounting hole; 17. Connecting block two; 18. Protrusion two; 19. Straight groove two. Detailed Implementation

[0017] The present invention will be further described below with reference to the accompanying drawings and embodiments.

[0018] Please refer to the following: Figure 1 , Figure 2 , Figure 3 ,in, Figure 1 A schematic diagram of a preferred embodiment of a sludge dewatering device for solid waste treatment provided by this utility model; Figure 2 for Figure 1 The diagram shows a cross-sectional view of the filter plate. Figure 3 for Figure 1 The diagram shows the structure of the air blowing pipe.

[0019] In the specific implementation process, such as Figures 1-3 As shown, this sludge dewatering device for solid waste treatment is based on a plate and frame filter press, including a frame 1 and multiple filter plates 2 located within the frame 1. The frame 1 is equipped with a sliding block 3 that drives the filter plates 2 to unfold in conjunction. The top of the frame 1 is equipped with multiple equidistant air blowing pipes 4, which are connected to each other by a connecting block 5. The outlet of the air blowing pipe 4 faces the area between adjacent filter plates 2. One end of the sliding block 3 is fixedly connected to the air blowing pipe 4 through a connector. The bottom of the frame 1 has a discharge port 6, which is equipped with a connecting structure for docking with a rotary kiln.

[0020] Frame 1 provides support and installation foundation for the entire device. Multiple filter plates 2 are evenly arranged inside the frame 1. They are linked to open and close via sliding blocks 3 to perform sludge dewatering. Connecting blocks 17 are provided between each pair of filter plates 2. Fixed blocks are provided on both sides of each filter plate 2. One side of each fixed block has a protrusion 18. The two ends of the connecting blocks 17 are connected to two adjacent filter plates 2 respectively. A straight groove 19 is provided at the end of the connecting block 17 near the protrusion 18. The protrusion 18 is slidably connected to the inner wall of the straight groove 19. This structure allows adjacent filter plates 2 to maintain a certain connection while also sliding relative to each other to a certain extent. Combined with the linkage structure of the air blowing pipe 4 and the sliding block 3, it can adapt to the slight positional changes of the air blowing pipe 4 during movement, ensuring the stability and flexibility of the entire air blowing pipe 4 system and the filtration system.

[0021] Multiple air blowing pipes 4 are equidistantly arranged at the top of the frame 1. The multiple air blowing pipes 4 are connected to each other by connecting blocks 5 to ensure that the relative positions of the air blowing pipes 4 are stable. The outlets of the air blowing pipes 4 all face the area between adjacent filter plates 2 so that when the filter plates 2 are unfolded, the sludge between the filter plates 2 can be accurately blown and other operations can be performed.

[0022] The connector adopts a connecting rod 9, which has a U-shaped structure. One end of the connecting rod 9 is fixedly connected to the bracket 7, and the other end is fixedly connected to the sliding block 3. When the sliding block 3 moves, the bracket 7 is driven to move through the U-shaped connecting rod 9, which in turn drives the air blowing pipe 4 to move, so as to realize the linkage between the air blowing pipe 4 and the filter plate 2 in unfolding action.

[0023] The top of the air blowing pipe 4 is provided with a bracket 7, and the top of the frame 1 is provided with a slide rail 8 extending along the arrangement direction of the filter plate 2. The bracket 7 and the slide rail 8 are slidably connected. This design allows the bracket 7 to slide stably along the slide rail 8 when it drives the air blowing pipe 4 to move, ensuring the straightness and stability of the movement of the air blowing pipe 4.

[0024] The top of the bracket 7 is provided with a protrusion 10. The two ends of the connecting block 5 are respectively connected to two adjacent brackets 7. The end of the connecting block 5 near the protrusion 10 is provided with a straight groove 11. The protrusion 10 is slidably connected to the inner wall of the straight groove 11. This structure allows the adjacent air pipes 4 to maintain a certain connection relationship and slide relative to each other to a certain extent, so as to adapt to the slight positional changes of the air pipes 4 during the movement process and ensure the stability and flexibility of the entire air pipe 4 system.

[0025] The outlet end of the air blowing pipe 4 is provided with a flat nozzle 12. The opening width of the nozzle 12 is adapted to the thickness of the filter plate 2. The flat nozzle 12 can make the blown air more concentrated and evenly act on the sludge between the filter plates 2, improve the blowing effect, and better clean the sludge between the filter plates 2.

[0026] A blower 13 is provided at the top of the frame 1. Multiple hoses 14 are provided around the outside of the blower 13. One end of the hose 14 is fixedly connected to the air blowing pipe 4. The high-pressure airflow generated by the blower 13 is delivered to each air blowing pipe 4 through the hose 14 to provide the airflow power required for purging the air blowing pipe 4.

[0027] A discharge port 6 is provided at the bottom of the frame 1. A connection structure for docking with the rotary kiln is provided at the discharge port 6. The connection structure adopts a flange 15. The end face of the flange 15 is provided with an annular sealing groove. A high-temperature resistant rubber sealing gasket is embedded in the sealing groove, which can effectively prevent material leakage and high-temperature gas escape when docking with the rotary kiln. At least 6 mounting holes 16 are evenly provided on the flange 15 for bolt connection with the rotary kiln feed port. The flange 15 is tightly connected to the rotary kiln feed port by bolts to ensure the firmness and stability of the connection.

[0028] The working principle provided by this utility model is as follows: The sludge to be treated is transported into the main body of the plate and frame filter press. The sludge is dewatered by pressing through the filter plates 2. The water passes through the filter plates 2 and is discharged, while the sludge remains between the filter plates 2 to form a filter cake.

[0029] After the filter press is completed, the sliding block 3 is driven to move, which in turn causes the filter plate 2 to unfold. At the same time, the sliding block 3 drives the support 7 to move along the slide rail 8 through the U-shaped connecting rod 9. The support 7 drives the air blowing pipe 4 to move, so that the flat nozzle 12 of the air blowing pipe 4 is aligned with the area between adjacent filter plates 2. The blower 13 is started, and the generated high-pressure airflow is delivered to the air blowing pipe 4 through the hose 14 and blown out through the flat nozzle 12 to sweep the filter cake between the filter plates 2 and remove the filter cake from the filter plates 2.

[0030] The cleaned filter cake enters the rotary kiln for further processing through the discharge port 6 at the bottom of frame 1 and the flange 15 connection structure. During the connection process, the high-temperature resistant rubber gasket plays a sealing role to prevent material leakage and high-temperature gas escape, ensuring the smooth progress of the entire processing.

[0031] The circuits and controls involved in this utility model are all existing technologies, and will not be described in detail here.

[0032] The above description is merely an embodiment of this utility model and does not limit the patent scope of this utility model. Any equivalent structural or procedural transformations made based on the content of this utility model specification and drawings, or direct or indirect applications in other related technical fields, are similarly included within the patent protection scope of this utility model.

Claims

1. A sludge dewatering device for solid waste treatment, comprising a plate and frame filter press body, wherein the plate and frame filter press body comprises a frame (1) and a plurality of filter plates (2) disposed within the frame (1), wherein the frame (1) is provided with a sliding block (3) for driving the filter plates (2) to unfold in linkage, characterized in that, The top of the frame (1) is provided with multiple equidistant air blowing pipes (4), which are connected to each other by a connecting block (5). The outlets of the multiple air blowing pipes (4) are all facing the area between adjacent filter plates (2). One end of the sliding block (3) is fixedly provided with a connector, and the other end of the connector is fixedly connected to the air blowing pipe (4). The bottom of the frame (1) is provided with a discharge port (6), and the discharge port (6) is provided with a connecting structure for docking with the rotary kiln.

2. The sludge dewatering device for solid waste treatment according to claim 1, characterized in that, The air blowing pipe (4) is provided with a bracket (7) at the top, and the frame (1) is provided with a slide rail (8) extending along the arrangement direction of the filter plate (2) at the top. The bracket (7) and the slide rail (8) are slidably connected.

3. The sludge dewatering device for solid waste treatment according to claim 1, characterized in that, The connecting component is a connecting rod (9), which has a U-shaped structure. One end of the connecting rod (9) is fixedly connected to the bracket (7), and the other end of the connecting rod (9) is fixedly connected to the sliding block (3).

4. The sludge dewatering device for solid waste treatment according to claim 2, characterized in that, The bracket (7) has a protrusion (10) on the top. The two ends of the connecting block (5) are connected to two adjacent brackets (7) respectively. The connecting block (5) has a straight groove (11) at one end near the protrusion (10). The protrusion (10) is slidably connected to the inner wall of the straight groove (11).

5. The sludge dewatering device for solid waste treatment according to claim 4, characterized in that, The outlet end of the air blowing pipe (4) is provided with a flat nozzle (12), and the opening width of the nozzle (12) is adapted to the thickness of the filter plate (2).

6. The sludge dewatering device for solid waste treatment according to claim 5, characterized in that, The frame (1) is equipped with a blower (13) at the top, and a plurality of hoses (14) are provided around the outside of the blower (13). One end of the hoses (14) is fixedly connected to the air blowing pipe (4).

7. The sludge dewatering device for solid waste treatment according to claim 1, characterized in that, The connection structure for docking the rotary kiln is a flange (15). The end face of the flange (15) is provided with an annular sealing groove. The sealing groove is filled with a high-temperature resistant rubber sealing gasket. At least 6 mounting holes (16) are evenly opened on the flange (15) for bolt connection with the feed port of the rotary kiln.

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