Desliming machine for sewage treatment

Abstract

The utility model relates to the technical field of desliming machines, in particular to a desliming machine for sewage treatment, which comprises a dewatering bin, a filter cartridge rotatably arranged in the dewatering bin, annular frames rotatably mounted on the dewatering bin and respectively fixed at two ends of the filter cartridge, a rotating shaft rotatably arranged on the dewatering bin, a spiral blade fixed on the rotating shaft and positioned in the filter cartridge, and the filter cartridge is arranged in the dewatering bin. A feeding hopper communicated with the interior of the filter cartridge is fixed to the dewatering bin, the rotating shaft is matched with one annular frame through a first linkage structure, and the rotating shaft can drive one annular frame to rotate when rotating; according to the utility model, through the reverse rotation of the filter cartridge and the internal spiral blade, the sludge is prevented from being accumulated in the filter cartridge, continuous sludge discharge and synchronous dehydration are realized, in addition, the movable scraping ring and the scraping plate are integrated on the periphery of the filter cartridge, so that the sludge is prevented from being accumulated in the filter cartridge, and the sludge discharge efficiency is improved. Filter holes are cleaned in real time, blockage is reduced, and the desliming effect is improved.

Description

Technical Field

[0001] This utility model relates to the field of sludge descaling technology, specifically a sludge descaling machine for sewage treatment. Background Technology

[0002] Sludge is an inevitable byproduct of wastewater treatment, characterized by high water content, easy decay, and the presence of pathogenic microorganisms and heavy metals. Improper treatment can easily lead to secondary pollution of soil and groundwater, while wasting abundant resources such as nitrogen, phosphorus, and organic matter. Traditional disposal methods such as landfill and incineration face problems such as large land occupation, high energy consumption, and pollution risks. Resource utilization, such as composting and use as building material raw materials, requires efficient dewatering. Therefore, sludge dewatering machines, as core equipment for sludge reduction and resource utilization, are crucial for environmental protection and sustainable development.

[0003] Currently, the mainstream sludge dewatering technologies mainly include belt filter presses and centrifugal dewatering machines. However, they still have significant drawbacks in use: belt filter presses dewater by squeezing the filter belt, but they are prone to clogging the filter holes, requiring frequent cleaning, and the sludge still has a high water content after dewatering; centrifugal dewatering machines use centrifugal force to separate solids and liquids, but they consume a lot of energy, and sludge tends to accumulate in the drum, requiring shutdown for cleaning, which affects continuity. Moreover, existing equipment lacks self-cleaning functions. For example, the centrifuge filter holes are easily clogged by sludge, requiring manual intervention and reducing efficiency. Most equipment cannot simultaneously handle continuous sludge discharge and synchronous dewatering, and shutdown for cleaning limits the processing capacity.

[0004] Therefore, we provide a sludge removal machine for wastewater treatment to solve the problems mentioned above. Utility Model Content

[0005] The purpose of this invention is to provide a sludge removal machine for wastewater treatment to solve the problems mentioned in the background art.

[0006] To achieve the above objectives, this utility model provides the following technical solution:

[0007] A sludge dewatering machine for wastewater treatment includes a dewatering chamber, a filter cylinder rotatably disposed inside the dewatering chamber, and annular frames rotatably mounted on the dewatering chamber at both ends of the filter cylinder. A rotating shaft is rotatably disposed on the dewatering chamber, and a spiral blade is fixed on the rotating shaft. The spiral blade is located inside the filter cylinder. A feeding hopper communicating with the inside of the filter cylinder is fixed on the dewatering chamber. The rotating shaft and an annular frame are connected by a first linkage structure. When the rotating shaft rotates, it drives the annular frame to rotate.

[0008] A scraper ring is movably sleeved on the outer periphery of the filter cylinder. A scraper blade for scraping the surface of the filter cylinder is fixed on the scraper ring. The rotating shaft and the scraper ring are connected by a second linkage structure. When the rotating shaft rotates, it will drive the scraper ring to move horizontally back and forth.

[0009] As described above, a sludge dewatering machine for wastewater treatment has a motor fixed on the dewatering chamber, and one end of the rotating shaft is installed at the output end of the motor and is driven to rotate by the motor.

[0010] A sludge dewatering machine for wastewater treatment as described above: the first linkage structure includes a drive gear fixed on a rotating shaft and a driven gear rotatably mounted on a dewatering chamber, the drive gear meshing with the driven gear, and a gear ring fixed to the inner wall of the annular frame, the driven gear meshing with the gear ring.

[0011] As described above, a sludge dewatering machine for wastewater treatment includes a second linkage structure comprising a collar movably sleeved on a rotating shaft, a three-jaw bracket fixed on the collar, a scraper fixed on the three-jaw bracket, the three-jaw bracket penetrating the shell of the dewatering chamber, an annular track groove formed on the outer wall of one end of the rotating shaft, and a ball bearing movably embedded and engaged in the inner wall of the collar, the ball bearing being movably engaged in the annular track groove and capable of rolling along the track groove.

[0012] A sludge removal machine for wastewater treatment as described above: the number of scrapers is set to multiple, and the multiple scrapers are circumferentially distributed at equal angles on a scraper ring.

[0013] A sludge removal machine for wastewater treatment as described above: a scraper brush is fixedly adhered to the surface of the scraper, and the scraper brush is made of EVA foam material.

[0014] A sludge dewatering machine for wastewater treatment as described above: a drain pipe and a sludge discharge pipe are fixedly installed on the dewatering chamber, and valves are installed on the drain pipe and the sludge discharge pipe respectively. The drain pipe is connected to the inner cavity of the dewatering chamber, and the sludge discharge pipe is connected to the inner cavity of the filter cylinder.

[0015] Compared with the prior art, the beneficial effects of this utility model are as follows: When in use, sewage containing sludge is added into the filter cylinder through the feeding hopper. The motor drives the rotating shaft to rotate, which in turn drives the spiral blades to rotate and stir the sludge entering the filter cylinder to avoid clogging. At the same time, the sludge can be spirally conveyed to the sludge discharge pipe. In addition, when the rotating shaft rotates, it will drive a ring frame to rotate in the opposite direction, which can simultaneously drive the filter cylinder to rotate. Then, the reverse rotation of the filter cylinder is used to centrifuge and dewater the sludge inside the filter cylinder. Under the action of centrifugal force, water enters the dewatering chamber through the filter holes of the filter cylinder, realizing solid-liquid separation.

[0016] In addition, a scraper ring is movably sleeved on the outer periphery of the filter cylinder. A scraper plate is fixed on the scraper ring for scraping the surface of the filter cylinder. When the rotating shaft rotates, it will drive the scraper plate on the scraper ring to move horizontally back and forth. Thus, through the rotation of the filter cylinder and the horizontal movement of the scraper plate, the sludge adhering to the filter holes of the filter cylinder can be scraped off, reducing the clogging of the filter holes.

[0017] Therefore, this utility model avoids sludge accumulation in the filter cylinder by having the filter cylinder and the internal spiral blades rotate in opposite directions, thus accelerating the solid-liquid separation efficiency. At the same time, it can automatically transport the sludge after solid-liquid separation to the outside, realizing continuous sludge discharge and synchronous dewatering. In addition, a movable scraper ring and scraper are integrated on the outer periphery of the filter cylinder to clean the filter holes in real time, reduce clogging, and improve the sludge removal effect. Attached Figure Description

[0018] Figure 1 This is a schematic diagram of the overall structure of a sludge removal machine for wastewater treatment.

[0019] Figure 2 This is a schematic diagram of the internal structure of the dewatering chamber of a sludge dewatering machine for wastewater treatment.

[0020] Figure 3 A sludge dewatering machine for wastewater treatment Figure 2 A structural diagram from another perspective.

[0021] Figure 4 A sludge dewatering machine for wastewater treatment Figure 3 A schematic diagram of the structure of the filter cartridge after partial cross-section.

[0022] Figure 5 A sludge dewatering machine for wastewater treatment Figure 4 A schematic diagram of its decomposed structure.

[0023] Figure 6 A sludge dewatering machine for wastewater treatment Figure 2 A schematic diagram of the decomposed part of the structure.

[0024] Figure 7 This is a schematic diagram of the second linkage structure of a sludge removal machine for wastewater treatment.

[0025] In the diagram: 1. Dewatering chamber; 2. Filter cylinder; 3. Annular frame; 4. Rotating shaft; 5. Spiral blades; 6. Feed hopper; 7. Motor; 8. Drive gear; 9. Driven gear; 10. Gear ring; 11. Collar ring; 12. Three-jaw frame; 13. Scraper ring; 14. Scraper blade; 15. Scraper brush; 16. Ball bearing; 17. Annular track groove; 18. Drain pipe; 19. Sludge discharge pipe. Detailed Implementation

[0026] The technical solutions of the present utility model will be clearly and completely described below with reference to the accompanying drawings of the embodiments of the present utility model. Obviously, the described embodiments are only some embodiments of the present utility model, and not all embodiments.

[0027] Please see Figures 1 to 7As an embodiment of this utility model, a sludge dewatering machine for sewage treatment includes a dewatering chamber 1, a filter cylinder 2 rotatably disposed inside the dewatering chamber 1, and annular frames 3 rotatably mounted on the dewatering chamber 1 at both ends of the filter cylinder 2. A rotating shaft 4 is rotatably disposed on the dewatering chamber 1, and a spiral blade 5 is fixed on the rotating shaft 4. The spiral blade 5 is located inside the filter cylinder 2. A feeding hopper 6 communicating with the inside of the filter cylinder 2 is fixed on the dewatering chamber 1. The rotating shaft 4 and an annular frame 3 are connected by a first linkage structure. When the rotating shaft 4 rotates, it will drive an annular frame 3 to rotate.

[0028] A scraper ring 13 is movably sleeved on the outer periphery of the filter cylinder 2. A scraper 14 for scraping the surface of the filter cylinder 2 is fixed on the scraper ring 13. The rotating shaft 4 and the scraper ring 13 are connected by a second linkage structure. When the rotating shaft 4 rotates, it will drive the scraper ring 13 to move horizontally back and forth.

[0029] In this embodiment, during use, wastewater containing sludge is added into the filter cylinder 2 through the feeding hopper 6. The rotating shaft 4 drives the spiral blades 5 to rotate, which stirs the sludge entering the filter cylinder 2 to prevent clogging and simultaneously conveys the sludge to the discharge pipe 19. In addition, when the rotating shaft 4 rotates, it drives a ring frame 3 to rotate, which in turn drives the filter cylinder 2 to rotate. The rotation of the filter cylinder 2 is then used to centrifuge and dewater the sludge inside the filter cylinder 2. Under the action of centrifugal force, water enters the inner cavity of the dewatering chamber 1 through the filter holes of the filter cylinder 2, thus achieving solid-liquid separation.

[0030] In addition, a scraper ring 13 is movably sleeved on the outer periphery of the filter cylinder 2. A scraper 14 for scraping the surface of the filter cylinder 2 is fixed on the scraper ring 13. When the rotating shaft 4 rotates, it will drive the scraper 14 on the scraper ring 13 to move horizontally back and forth. Thus, by rotating the filter cylinder 2 and moving the scraper 14 horizontally, the sludge adhering to the filter holes of the filter cylinder 2 can be scraped away, reducing the clogging of the filter holes.

[0031] As a further embodiment of this utility model, a motor 7 is fixed on the dehydration chamber 1, and one end of the rotating shaft 4 is installed at the output end of the motor 7 and is driven to rotate by the motor 7.

[0032] In this embodiment, the motor 7 is electrically connected to an external power source via a wire. Starting the motor 7 drives the rotating shaft 4 to rotate, which in turn drives the spiral blades 5 to rotate, stirring the sludge entering the filter cylinder 2 to prevent clogging, and simultaneously conveying the sludge to the sludge discharge pipe 19.

[0033] As a further embodiment of this utility model, the first linkage structure includes a drive gear 8 fixed on the rotating shaft 4 and a driven gear 9 rotatably mounted on the dehydration chamber 1. The drive gear 8 meshes with the driven gear 9. A gear ring 10 is fixed on the inner wall of an annular frame 3, and the driven gear 9 meshes with the gear ring 10.

[0034] In this embodiment, when the rotating shaft 4 rotates, it will drive the driving gear 8 to rotate synchronously. When the driving gear 8 meshes with the driven gear 9, the driving gear 8 will drive the driven gear 9 to rotate in the opposite direction. When the driven gear 9 meshes with the gear ring 10, the driven gear 9 will drive the gear ring 10 to rotate in the same direction. Therefore, when the rotating shaft 4 rotates, it will drive the filter cylinder 2 to rotate in the opposite direction.

[0035] As a further embodiment of this utility model, the second linkage structure includes a collar 11 movably sleeved on the rotating shaft 4, a three-jaw bracket 12 fixed on the collar 11, a scraper ring 13 fixed on the three-jaw bracket 12, the three-jaw bracket 12 penetrating the shell of the dehydration chamber 1, an annular track groove 17 being formed on the outer wall of one end of the rotating shaft 4, and a ball bearing 16 being movably embedded and engaged in the inner wall of the collar 11, the ball bearing 16 being movably engaged in the inside of the annular track groove 17 and being able to roll along the track groove where the annular track groove 17 is located.

[0036] In this embodiment, when the rotating shaft 4 rotates, it will drive the annular track groove 17 on the rotating shaft 4 to rotate. The ball bearing 16 is movably engaged inside the annular track groove 17 and can roll along the track groove 17. Therefore, it will drive the collar 11 to move horizontally back and forth on the outer periphery of the rotating shaft 4. This will drive the three-jaw bracket 12 fixed on the collar 11 to move horizontally back and forth on the outer periphery of the filter cylinder 2. In turn, it will drive the scraper ring 13 and scraper 14 fixed on the three-jaw bracket 12 to scrape and brush the filter holes of the filter cylinder 2.

[0037] As a further embodiment of this utility model, the number of scrapers 14 is set to multiple, and the multiple scrapers 14 are circumferentially distributed at equal angles on the scraper ring 13.

[0038] In this embodiment, multiple scrapers 14 are circumferentially distributed at equal angles on the scraper ring 13. The horizontal reciprocating movement of the scrapers 14, combined with the rotation of the filter cylinder 2, facilitates thorough cleaning of the filter holes of the filter cylinder 2.

[0039] As a further embodiment of this utility model, a scraper 15 is fixedly adhered to the surface of the scraper 14, and the scraper 15 is made of EVA foam brush material.

[0040] In this embodiment, a scraper 15 is fixedly attached to the surface of the scraper 14. The scraper 15 is soft and can reduce the wear on the surface of the filter cartridge 2 when the scraper 14 scrapes the filter cartridge 2. At the same time, the EVA foam brush material does not easily adhere to sludge, resulting in a better cleaning effect.

[0041] As a further embodiment of this utility model, a drain pipe 18 and a sludge discharge pipe 19 are fixedly installed on the dewatering chamber 1. Valves are installed on the drain pipe 18 and the sludge discharge pipe 19 respectively. The drain pipe 18 is connected to the inner cavity of the dewatering chamber 1, and the sludge discharge pipe 19 is connected to the inner cavity of the filter cylinder 2.

[0042] In this embodiment, the sludge dewatered by centrifugation by rotating the filter cylinder 2 remains inside the filter cylinder 2. The rotation of the rotating shaft 4 drives the spiral blades 5 to rotate, which can spirally transport the sludge inside the filter cylinder 2 to the sludge discharge pipe 19 and discharge it to the outside through the sludge discharge pipe 19. At the same time, the water dewatered by centrifugation is thrown into the inner cavity of the dewatering chamber 1 and the wastewater can be discharged to the outside through the drain pipe 18, realizing the separation of solid and liquid and separate discharge.

[0043] The working principle of this utility model is as follows: When in use, sewage containing sludge is added into the filter cylinder 2 through the feeding hopper 6. The motor 7 is started to drive the rotating shaft 4 to rotate, which can drive the spiral blades 5 to rotate and stir the sludge entering the filter cylinder 2. Stirring can prevent the sludge from accumulating inside the filter cylinder 2 and causing blockage. At the same time, the rotation of the spiral blades 5 can spirally transport the sludge accumulated inside the filter cylinder 2 to the sludge discharge pipe 19 and discharge it outward through the sludge discharge pipe 19. In addition, when the rotating shaft 4 rotates, it will drive a ring frame 3 to rotate in the opposite direction, which can simultaneously drive the filter cylinder 2 to rotate in the opposite direction. Then, the reverse rotation of the filter cylinder 2 is used to centrifuge and dewater the sludge inside the filter cylinder 2. Under the action of centrifugal force, water enters the inner cavity of the dewatering chamber 1 through the filter holes of the filter cylinder 2, while the sludge remains inside the filter cylinder 2, thereby realizing the solid-liquid separation of sludge and sewage.

[0044] In addition, a scraper ring 13 is movably sleeved on the outer periphery of the filter cylinder 2. A scraper 14 for scraping the surface of the filter cylinder 2 is fixed on the scraper ring 13. When the rotating shaft 4 rotates, it will drive the scraper 14 on the scraper ring 13 to move horizontally back and forth. Thus, by rotating the filter cylinder 2 and moving the scraper 14 horizontally, the sludge adhering to the filter holes of the filter cylinder 2 can be scraped away, reducing the clogging of the filter holes.

[0045] The above embodiments are exemplary and not restrictive. Therefore, without departing from the spirit or basic characteristics of this utility model, any technical solutions that can be implemented in other specific forms are included in this utility model.

Claims

1. A sludge dewatering machine for wastewater treatment, comprising a dewatering chamber (1), characterized in that, A filter cylinder (2) is rotatably installed inside the dehydration chamber (1). A ring frame (3) is rotatably installed on the dehydration chamber (1) at both ends of the filter cylinder (2). A rotating shaft (4) is rotatably installed on the dehydration chamber (1). A spiral blade (5) is fixed on the rotating shaft (4). The spiral blade (5) is located inside the filter cylinder (2). A feeding hopper (6) communicating with the inside of the filter cylinder (2) is fixed on the dehydration chamber (1). The rotating shaft (4) and a ring frame (3) are connected by a first linkage structure. When the rotating shaft (4) rotates, it will drive a ring frame (3) to rotate. A scraper ring (13) is movably sleeved on the outer periphery of the filter cylinder (2). A scraper plate (14) for scraping the surface of the filter cylinder (2) is fixed on the scraper ring (13). The rotating shaft (4) and the scraper ring (13) are connected by a second linkage structure. When the rotating shaft (4) rotates, it will drive the scraper ring (13) to move horizontally back and forth.

2. The sludge removal machine for wastewater treatment according to claim 1, characterized in that, A motor (7) is fixed on the dehydration chamber (1), and one end of the rotating shaft (4) is installed at the output end of the motor (7) and is driven to rotate by the motor (7).

3. A sludge removal machine for wastewater treatment according to claim 1, characterized in that, The first linkage structure includes a drive gear (8) fixed on the rotating shaft (4) and a driven gear (9) rotatably mounted on the dehydration chamber (1). The drive gear (8) meshes with the driven gear (9). A gear ring (10) is fixed on the inner wall of the ring frame (3). The driven gear (9) meshes with the gear ring (10).

4. A sludge removal machine for wastewater treatment according to claim 1, characterized in that, The second linkage structure includes a collar (11) movably sleeved on the rotating shaft (4), a three-jaw bracket (12) fixed on the collar (11), a scraper ring (13) fixed on the three-jaw bracket (12), the three-jaw bracket (12) penetrating the shell of the dehydration chamber (1), an annular track groove (17) is opened on the outer wall of one end of the rotating shaft (4), and a ball bearing (16) is movably embedded and engaged in the inner wall of the collar (11). The ball bearing (16) is movably engaged in the annular track groove (17) and can roll along the track groove (17).

5. A sludge removal machine for wastewater treatment according to claim 1, characterized in that, The number of scrapers (14) is set to multiple, and the multiple scrapers (14) are circumferentially distributed at equal angles on the scraper ring (13).

6. A sludge removal machine for wastewater treatment according to claim 1, characterized in that, A scraper (15) is fixedly attached to the surface of the scraper (14), and the scraper (15) is made of EVA foam brush material.

7. A sludge removal machine for wastewater treatment according to claim 1, characterized in that, A drain pipe (18) and a sludge discharge pipe (19) are fixedly installed on the dehydration chamber (1). Valves are installed on the drain pipe (18) and the sludge discharge pipe (19). The drain pipe (18) is connected to the inner cavity of the dehydration chamber (1), and the sludge discharge pipe (19) is connected to the inner cavity of the filter cylinder (2).

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