Sludge separation and recycling device
By incorporating a squeezing plate device with a rotating shaft and connecting rod inside the filter cartridge, the problem of low efficiency in existing sludge squeezing devices is solved, achieving more efficient sludge plate squeezing and reducing accumulation, thus improving the sludge treatment effect.
Patent Information
- Authority / Receiving Office
- CN · China
- Patent Type
- Utility models(China)
- Current Assignee / Owner
- JIANGSU YIZHOU RENEWABLE RESOURCES TECH CO LTD
- Filing Date
- 2025-07-28
- Publication Date
- 2026-06-26
AI Technical Summary
The existing sludge extrusion device has low extrusion efficiency, mainly because the contact area between the stirring rod and the inner wall of the filter cylinder is limited and the mechanical thrust of the stirring rod makes it difficult for the sludge plate to stably adhere to the extrusion surface.
The filter cartridge is equipped with a rotating shaft and connecting rod, with an extrusion plate connected to the connecting rod. The extrusion plate and the protrusion on the inner wall of the filter cartridge form an extrusion cavity. The size of the extrusion cavity is changed by the interaction between the extrusion plate and the protrusion. The end design of the extrusion plate avoids the pushing and accumulation of mud plates, thereby improving the extrusion efficiency.
It improves the sludge extrusion efficiency, ensures uniform extrusion of the sludge plates and reduces accumulation, and enhances the processing capacity of the extrusion device.
Smart Images
Figure CN224408560U_ABST
Abstract
Description
Technical Field
[0001] This utility model relates to the field of sludge recycling technology, specifically to a sludge separation, recycling and utilization device. Background Technology
[0002] In modern sludge treatment processes, the dried, sheet-like sludge sheets formed after dewatering, as an intermediate product, must undergo a crushing and extrusion process to break them down into uniform small sludge blocks before they can smoothly enter the critical processes of subsequent resource utilization or harmless disposal. This necessitates the use of an extrusion device.
[0003] Most extrusion devices commonly found on the market today use a combination structure of a filter cylinder and a built-in stirring rod. Their operating logic is to use the relative motion between the stirring rod and the filter cylinder to crush the mud plate through mechanical force.
[0004] However, the traditional device has the following drawbacks: on the one hand, the stirring rod only contacts the inner wall of the filter cylinder with its side rod surface, resulting in a very limited effective contact area for the extrusion action, and a large number of mud plates cannot be fully extruded; on the other hand, during dynamic operation, the mechanical thrust generated by the stirring rod when it rotates will inevitably exert a continuous pushing effect on the mud plates inside the filter cylinder, making it difficult for the mud plates to stably adhere to the extrusion surface; the combination of these two factors reduces the extrusion efficiency of the existing extrusion device. Utility Model Content
[0005] In view of the above-mentioned technical deficiencies, the purpose of this utility model is to provide a sludge separation and recycling device to overcome the problem of low extrusion efficiency of the extrusion device in the prior art.
[0006] To solve the above technical problems, the present invention adopts the following technical solution: The present invention provides a sludge separation and recycling device, comprising: a filter cylinder fixed on a base, a rotating shaft provided inside the filter cylinder, a plurality of connecting rods fixed on the rotating shaft, and a squeezing plate rotatably connected to the connecting rods, the squeezing plate being used in conjunction with the filter cylinder;
[0007] The filter cartridge has several protrusions fixed on its inner wall surface, and the extrusion plate, the protrusions, and the inner wall surface of the filter cartridge together form an extrusion cavity.
[0008] Optionally, the extrusion plate has a first end and a second end, the first end being disposed close to the inner wall surface of the filter cartridge, and the second end being disposed away from the inner wall surface of the filter cartridge.
[0009] Optionally, a first curved surface is provided on the side of the first end near the inner wall of the filter cartridge, and a second curved surface is provided on the side of the second end near the inner wall of the filter cartridge. The first curved surface extends to the second curved surface and forms a curved groove.
[0010] Optionally, the curved groove, the protrusion, and the inner wall surface of the filter cartridge together form a compression cavity.
[0011] Optionally, the connecting rod is provided with two tension springs, the ends of which are away from the connecting rod are respectively fixed to a first end and a second end.
[0012] Optionally, the rotating shaft is driven by a motor, which is located outside the filter cartridge and fixed to a fixed end face.
[0013] Optionally, a plurality of scrapers are fixed on the rotating shaft, and the scrapers are used in conjunction with the outer wall surface of the filter cartridge.
[0014] Optionally, a brush is provided on the side of the scraper near the outer wall of the filter cartridge, and the brush is used in conjunction with the filter holes of the filter cartridge.
[0015] Optionally, the base may also be provided with a ramp.
[0016] Optionally, a filter door is also provided on the outer wall of the filter cartridge, and the filter door has filter holes corresponding to the filter cartridge.
[0017] The beneficial effects of this utility model are as follows:
[0018] This invention features a pressing plate on a connecting rod and a protrusion on the inner wall of the filter cylinder. The pressing plate, the protrusion, and the inner wall of the filter cylinder together form a pressing cavity. During the rotation of the connecting rod, the pressing plate interacts with the protrusion, thereby changing the size of the pressing cavity and pressing the mud slab inside, forcing it out of the filter holes of the filter cylinder. This pressing cavity design transforms the pressing process from side-to-side contact of the plates in existing technologies into a relatively enclosed space, improving the pressing efficiency.
[0019] Meanwhile, the extrusion plate of this utility model also has a first end and a second end. The first end is arranged facing the inner wall of the filter cylinder, so that it can gather the mud plate outside the extrusion chamber during rotation, thereby preventing the connecting rod from pushing the mud plate away during rotation, thus improving the extrusion efficiency.
[0020] In addition, the second end of the extrusion plate of this invention is positioned away from the inner wall of the filter cylinder, so that it can push the mud plate outside the extrusion chamber during rotation, preventing it from accumulating on the side wall of the extrusion plate and reducing accumulation. Attached Figure Description
[0021] To more clearly illustrate the technical solutions in the embodiments of this utility model or the prior art, the drawings used in the description of the embodiments or the prior art will be briefly introduced below. Obviously, the drawings described below are only some embodiments of this utility model. For those skilled in the art, other drawings can be obtained based on these drawings without creative effort.
[0022] Figure 1 This is a schematic diagram of the structure of a sludge separation and recycling device according to the present invention.
[0023] Figure 2 This is a top-view cross-sectional view of a sludge separation and recycling device according to this utility model.
[0024] Figure 3 This utility model relates to a sludge separation and recycling device. Figure 2 Enlarged view of point A in the middle.
[0025] Figure 4 This is a top-view schematic diagram of the extrusion plate of a sludge separation and recycling device according to this utility model.
[0026] Figure 5 This is a front-view cross-sectional view of a sludge separation and recycling device according to this utility model.
[0027] Figure 6 This is a structural diagram of the rotating shaft, connecting rod, and extrusion plate of a sludge separation and recycling device according to this utility model.
[0028] Explanation of reference numerals in the attached figures:
[0029] 1. Base; 11. Inclined surface; 2. Filter cylinder; 21. Protrusion; 22. Extrusion chamber; 23. Filter door; 3. Rotating shaft; 31. Connecting rod; 311. Tension spring; 32. Scraper; 4. Extrusion plate; 41. First end; 411. First curved surface; 42. Second end; 422. Second curved surface; 43. Curved groove; 5. Motor. Detailed Implementation
[0030] The technical solutions of the present utility model will be clearly and completely described below with reference to the accompanying drawings of the embodiments. Obviously, the described embodiments are only some embodiments of the present utility model, and not all embodiments. Based on the embodiments of the present utility model, all other embodiments obtained by those of ordinary skill in the art without creative effort are within the protection scope of the present utility model.
[0031] As mentioned above, the shortcomings of existing extrusion devices are as follows: on the one hand, the stirring rod only contacts the inner wall of the filter cylinder with its side rod surface, resulting in a very limited effective contact area for the extrusion action, and a large number of mud plates cannot be fully extruded; on the other hand, during dynamic operation, the mechanical thrust generated by the stirring rod when rotating and stirring will inevitably exert a continuous pushing effect on the mud plates inside the filter cylinder, making it difficult for the mud plates to stably adhere to the extrusion surface; the combination of these two factors reduces the extrusion efficiency of existing extrusion devices.
[0032] To address this issue, this invention provides a device for extruding mud plates in a sludge recycling process, solving the aforementioned problems and improving the extrusion efficiency of mud plates. This invention achieves this solution through the following methods.
[0033] Example 1:
[0034] Please refer to the instruction manual appendix. Figures 1 to 6 As shown in the figure, this embodiment provides a sludge separation and recycling device. The device includes a base 1, a filter cartridge 2, a rotating shaft 3, and an extrusion plate 4. The filter cartridge 2 is fixed on the base 1, and the rotating shaft 3 is rotatably connected inside the filter cartridge 2. The rotating shaft 3 is driven by a motor 5 located outside the filter cartridge 2. The motor 5 is fixed on a fixed end face (this fixed end face can be a support bracket or the end face of other devices with fixing functions, not shown in the figure). Several connecting rods 31 are fixed on the rotating shaft 3.
[0035] like Figure 2 , Figure 3 , Figure 6 As shown, in this embodiment, the extrusion plate 4 is rotatably connected to the end of the connecting rod 31 away from the rotating shaft 3. The extrusion plate 4 has a first end 41 and a second end 42. The first end 41 is disposed near the inner wall surface of the filter cylinder 2, and the second end 42 is disposed away from the inner wall surface of the filter cylinder 2. A first curved surface 411 is provided on the side of the first end 41 near the inner wall surface of the filter cylinder 2, and a second curved surface 422 is provided on the side of the second end 42 near the inner wall surface of the filter cylinder 2. The first curved surface 411 extends towards the second curved surface 422 and forms a curved groove 43. A plurality of protrusions 21 are fixed on the inner wall surface of the filter cylinder 2. The curved groove 43, the protrusions 21, and the inner wall surface of the filter cylinder 2 together form an extrusion cavity 22.
[0036] Two symmetrically arranged tension springs 311 are provided on the connecting rod 31. The ends of these two tension springs 311 away from the connecting rod 31 are respectively fixed to the first end 41 and the second end 42. Furthermore, the elastic deformation force of the tension spring 311 connected to the first end 41 is greater than that of the other tension spring 311. That is, when the extrusion plate 4 is not under force (not in contact with the protrusion 21), the tension spring 311 connected to the first end 41 is in a contracted state, while the other (the tension spring 311 connected to the second end 42) is in a stretched state. This causes the first end 41 to move away from the inner wall surface of the filter cylinder 2, thereby forming the first notch. The second end 42 abuts against the inner wall surface of the filter cylinder 2.
[0037] Therefore, in the specific implementation of this embodiment, the motor 5 drives the rotating shaft 3 to rotate, which in turn drives the connecting rod 31 to rotate, thereby driving the extrusion plate 4 to rotate. When the extrusion plate 4 is not in contact with the protrusion 21, the first notch is opened to its maximum extent, and the mud plate inside the filter cylinder 2 is drawn into the extrusion chamber 22. At this time, the extrusion chamber 22 is in an open state. The second end 42 abuts against the inner wall surface of the filter cylinder 2. The extrusion plate 4 continues to rotate, and the protrusion 21 gradually enters the extrusion chamber 22 from the first notch, passing the first curved surface 411 and contacting the second curved surface 422. Under the abutment action, the extrusion plate 4 rotates around the axis hinged to the connecting rod 31. At this time, the first notch gradually closes until it completely abuts against the inner wall surface of the filter cylinder 2, at which point the extrusion chamber 22 is in a closed state. In this cycle, the area of the extrusion chamber 22 shrinks from the open state to the closed state, which is the amount of mud plate extruded in this cycle.
[0038] Meanwhile, since the first end 41 rotates towards the inner wall of the filter cylinder 2, it serves to gather the mud plates. Correspondingly, the second end 42 rotates towards the inner wall away from the filter cylinder 2, thus it serves to disperse the mud plates (the mud plates accumulated on the side of the extrusion plate 4 near the rotating shaft 3). This reduces the accumulation of mud plates on the connecting rod 31 during the rotation of the rotating shaft 3.
[0039] Example 2:
[0040] Based on the above embodiments, in order to provide a clearer and more complete explanation of the technical solutions therein, this utility model also includes an embodiment two. For example... Figure 1 or Figure 5 As shown in this second embodiment, several scrapers 32 are fixed on the rotating shaft 3, and the scrapers 32 are used in conjunction with the outer wall surface of the filter cartridge 2. An inclined surface 11 is also provided on the base 1.
[0041] As the shaft 3 rotates, the extrusion plate 4 extrudes the mud strips inside the filter cylinder 2. Simultaneously, the scraper 32 rotates synchronously. This exerts a lateral shearing force on the mud strips extruded from the filter holes of the filter cylinder 2, causing them to break and fall onto the inclined surface 11 for collection. A brush (not shown in the figure) is provided on the side of the scraper 32 near the outer wall of the filter cylinder 2. This brush works in conjunction with the filter holes of the filter cylinder 2. This allows the brush to clean the filter holes of the filter cylinder 2 after the scraper 32 has finished shearing, reducing the risk of clogging.
[0042] Example 3:
[0043] Based on the above embodiments, in order to provide a clearer and more complete explanation of the technical solutions therein, this utility model also includes Embodiment Three. For example... Figure 1 As shown in this third embodiment, the filter cylinder 2 is also provided with a feed door, and a filter door 23 (e.g., hinged or snap-fit connected) is also provided on the outer wall of the filter cylinder 2. The filter door 23 has filter holes corresponding to the filter cylinder 2. After the extrusion is completed, the operator can open the filter door 23 to clean the inside of the filter cylinder 2.
[0044] Therefore, in summary, compared with the prior art, this utility model and its embodiments have the following advantages, including but not limited to:
[0045] This invention features a pressing plate 4 mounted on a connecting rod 31, and a protrusion 21 on the inner wall of the filter cylinder 2. The pressing plate 4, the protrusion 21, and the inner wall of the filter cylinder 2 together form a pressing cavity 22. During the rotation of the connecting rod 31, the pressing plate 4 interacts with the protrusion 21, thereby changing the size of the pressing cavity 22 and pressing the mud plate inside, causing it to be extruded from the filter holes of the filter cylinder 2. This pressing cavity 22 transforms the pressing process from side-to-side contact of the plate in existing technologies into a relatively enclosed space, improving the pressing efficiency.
[0046] Meanwhile, the extrusion plate 4 of this utility model also has a first end 41 and a second end 42. The first end 41 is arranged facing the inner wall of the filter cylinder 2, so that it can gather the mud plate outside the extrusion chamber 22 during rotation, thereby preventing the connecting rod 31 from pushing the mud plate away during rotation, thus improving the extrusion efficiency.
[0047] In addition, the second end 42 of the extrusion plate 4 of this utility model is located away from the inner wall of the filter cylinder 2, so that it can push the mud plate outside the extrusion chamber 22 during rotation, thereby preventing it from accumulating on the side wall of the extrusion plate 4 and reducing accumulation.
[0048] Obviously, those skilled in the art can make various modifications and variations to this utility model without departing from its spirit and scope. Therefore, if these modifications and variations fall within the scope of this utility model and its equivalents, this utility model also intends to include these modifications and variations.
Claims
1. A sludge separation and recycling device, characterized in that, include: A filter cartridge (2) is fixed on a base (1). A rotating shaft (3) is provided inside the filter cartridge (2). Several connecting rods (31) are fixed on the rotating shaft (3). An extrusion plate (4) is rotatably connected to the connecting rods (31). The extrusion plate (4) is used in conjunction with the filter cartridge (2). The inner wall of the filter cylinder (2) is fixed with several protrusions (21), and the extrusion plate (4), the protrusions (21) and the inner wall of the filter cylinder (2) together form an extrusion cavity (22).
2. The sludge separation and recycling device as described in claim 1, characterized in that, The extrusion plate (4) has a first end (41) and a second end (42), the first end (41) being disposed close to the inner wall surface of the filter cylinder (2), and the second end (42) being disposed away from the inner wall surface of the filter cylinder (2).
3. The sludge separation and recycling device as described in claim 2, characterized in that, The first end (41) is provided with a first curved surface (411) on the side near the inner wall of the filter cylinder (2), and the second end (42) is provided with a second curved surface (422) on the side near the inner wall of the filter cylinder (2). The first curved surface (411) extends to the second curved surface (422) and forms a curved groove (43).
4. The sludge separation and recycling device as described in claim 3, characterized in that, The curved groove (43), the protrusion (21) and the inner wall of the filter cylinder (2) together form a compression cavity (22).
5. The sludge separation and recycling device as described in claim 2, characterized in that, Two tension springs (311) are provided on the connecting rod (31), and the ends of the two tension springs (311) away from the connecting rod (31) are respectively fixed on the first end (41) and the second end (42).
6. The sludge separation and recycling device as described in claim 1, characterized in that, The rotating shaft (3) is driven by a motor (5), which is located outside the filter cartridge (2) and is fixed on the fixed end face.
7. The sludge separation and recycling device as described in claim 1, characterized in that, Several scrapers (32) are fixed on the rotating shaft (3), and the scrapers (32) are used in conjunction with the outer wall surface of the filter cylinder (2).
8. The sludge separation and recycling device as described in claim 7, characterized in that, The scraper (32) is provided with a brush on the side near the outer wall of the filter cylinder (2), and the brush is used in conjunction with the filter holes of the filter cylinder (2).
9. The sludge separation and recycling device as described in claim 1, characterized in that, The base (1) is also provided with an inclined surface (11).
10. The sludge separation and recycling device as described in claim 1, characterized in that, The outer wall of the filter cylinder (2) is also provided with a filter door (23), and the filter door (23) has filter holes corresponding to the filter cylinder (2).