High-efficiency sludge removal equipment for sewage treatment

Abstract

The application relates to the technical field of sewage treatment, in particular to efficient sludge removal equipment for sewage treatment, which comprises a base, the top of the base is fixedly connected with a shell, the lower end of the side wall of the shell is fixedly connected with a liquid discharge pipe; the top of the shell is fixedly connected with a liquid inlet pipe, and the top of the shell is rotationally connected with a placing frame; the side wall of the base is boltedly connected with a driving motor, the output shaft of the driving motor is fixedly connected with the center of a driving gear, the driving gear is engaged with a driven gear, the center of the driven gear is fixedly connected with a driving shaft, the driving shaft is rotationally connected with the inner bottom of the shell, and the side wall of the upper end of the driving shaft is fixedly connected with a separation frame. The sludge is extruded by the arc-shaped plate to form a hollow ring, water is discharged outward through the through holes in the side wall of the separation frame, the sludge is preliminarily dewatered, the water content in the sludge is reduced, the water is uniformly thrown outward under the centrifugal force, and the gravity center of the separation frame is basically in the middle.

Description

Technical Field

[0001] This invention relates to the field of wastewater treatment technology, specifically to a high-efficiency sludge removal device for wastewater treatment. Background Technology

[0002] Patent CN115340277B discloses a high-efficiency sludge removal and recycling device for sewage treatment, including a U-shaped platform. An electric telescopic rod is installed on the inner top of the U-shaped platform. A pressure plate is fixedly connected to the telescopic end of the electric telescopic rod. A first telescopic rod is fixedly connected to the upper end of the pressure plate. Both the telescopic end of the first telescopic rod and the inner top of the U-shaped platform are provided with mutually cooperating L-shaped bars.

[0003] In the aforementioned prior art, after the sludge is compressed by the pressure plate and some of the water in the sludge is squeezed out, the centrifugal force generated by the rotation of the rotating cylinder is used to further throw out the water. The pressure plate squeezes and accumulates the sludge at the bottom of the cylinder. When the cylinder rotates, a large amount of sludge accumulates in the central area of ​​the cylinder. As a result, the thick filter cake layer in this area significantly increases the water permeation resistance and reduces the dewatering rate during centrifugation.

[0004] Therefore, a high-efficiency sludge removal device for wastewater treatment is proposed to solve the problems mentioned above. Summary of the Invention

[0005] To achieve the above objectives, the present invention provides the following technical solution: A base is included, with a housing fixedly connected to the top of the base, and a drain pipe fixedly connected to the lower end of the side wall of the housing; a liquid inlet pipe is fixedly connected to the top of the housing, and a placement frame is rotatably connected to the top of the housing; a drive motor is bolted to the side wall of the base, the output shaft of the drive motor is fixedly connected to the center of the driving gear, the driving gear meshes with the driven gear, the center of the driven gear is fixedly connected to the drive shaft, the drive shaft is rotatably connected to the bottom of the housing, and the upper side wall of the drive shaft is fixedly connected to the separation frame; a connecting shaft is rotatably connected to the bottom of the drive shaft, the other end of the connecting shaft is fixedly connected to the unloading pipe, and the unloading pipe is fixedly connected to the side wall of the base; a partition is provided inside the drive shaft and the connecting shaft to separate the drive shaft and the connecting shaft into a first conveying space and a second conveying space, the unloading pipe communicates with the first conveying space, and the second conveying space communicates with a gas conveying pipe fixedly connected to the side wall of the unloading pipe.

[0006] Preferably, multiple sets of suction tubes are fixedly connected inside the separation frame, and multiple sets of first one-way valves are embedded in the inner side wall of the separation frame. The first one-way valves are connected to the suction tubes, and the suction tubes are connected to the first conveying space through connecting tubes. The suction tubes are located at the bottom inside the separation frame.

[0007] Preferably, a support is fixedly connected to the bottom of the placement frame, and a servo motor is bolted to the support. The output shaft of the servo motor drives the first gear to rotate and connect with the support. A second gear is rotatably connected to the bottom of the support, and the second gear meshes with the first gear.

[0008] Preferably, the second gear is provided with an arc-shaped groove, and a drive rod is slidably connected to the limiting groove provided in the receiving seat. The drive rod is rotatably connected to the sliding rod, and the other end of the sliding rod is inserted into the arc-shaped groove.

[0009] Preferably, the drive rod is fixedly connected to the arc-shaped plate, and a winding roller is rotatably connected inside the arc-shaped plate via a torsion spring. A shielding film is wound on the winding roller, and the other end of the shielding film is fixedly connected to the side wall of the arc-shaped plate that is close to each other.

[0010] Preferably, the inner walls of multiple sets of arc-shaped plates are fixedly connected to the airbag, the bottom of the airbag is rotatably connected to the top of the drive shaft through a one-way valve, and the first space interlayer inside the airbag is connected to the first conveying space on the drive shaft.

[0011] Preferably, the airbag has two layers, and the inner and outer layers of the airbag form two independent spaces respectively; The independent spaces are the first mezzanine and the second mezzanine; The arc-shaped plate is equipped with multiple sets of second and third check valves at equal intervals from top to bottom.

[0012] Preferably, the second check valve is connected to the first space interlayer; The third check valve is connected to the second space interlayer; The first, second, and third check valves are all equipped with a filter screen in the areas where they come into contact with external liquids.

[0013] Preferably, the curved plate, the take-up roller, and the shielding film are provided in multiple sets; A one-way valve is provided at the bottom of the placement frame, and the upper end of the one-way valve is connected to the inside of the placement frame through a valve, while the lower end of the one-way valve is connected to the inside of the airbag.

[0014] Compared with the prior art, the present invention provides a high-efficiency sludge removal device for wastewater treatment, which has the following beneficial effects: This invention uses an arc-shaped plate to compress sludge into a hollow ring, allowing water to drain outwards through the through-holes in the side wall of the separation frame. This achieves initial dewatering of the sludge, reducing its moisture content. Water is evenly flung outwards under centrifugal force, keeping the center of gravity of the separation frame relatively centered. The system is stable, low-noise, has a long lifespan, provides optimal dewatering effect, and is safe to operate. Simultaneously, a second one-way valve draws water bidirectionally from the outside of the sludge, while a first one-way valve draws water from the inside. This synchronized action significantly accelerates the separation speed of free water.

[0015] 2. This invention opens the valve at the bottom of the placement frame, connecting the valve to a one-way valve. The airbag draws liquid (treatment agent) from the placement frame into the airbag through the one-way valve, mixing it with the original liquid inside the airbag. During the sludge treatment process, the treatment agent can be evenly added to the wastewater.

[0016] 3. The present invention connects an external gas delivery device to a gas delivery pipe to deliver gas to the second delivery space, then into the interlayer of the second space, and delivers air to the third one-way valve. The air is delivered to the sludge surface through the third one-way valve, drying the sludge at multiple points at both ends. This drying method can accelerate the drying speed of the sludge, improve the drying efficiency, and make the sludge easier to handle and utilize in the future. Attached Figure Description

[0017] The accompanying drawings, which are included to provide a further understanding of this application and form part of this application, illustrate exemplary embodiments and are used to explain this application, but do not constitute an undue limitation of this application. In the drawings: Figure 1 This is a schematic diagram of the structure of the present invention. Figure 1 ; Figure 2 This is a schematic diagram of the structure of the present invention. Figure 2 ; Figure 3 This is a schematic diagram of the structure of the present invention. Figure 3 ; Figure 4 This is a schematic diagram of the internal structure of the separation frame of the present invention; Figure 5 This is a schematic diagram of the bottom structure of the separation frame of the present invention; Figure 6 This is a schematic diagram of the structure of the present invention. Figure 4 ; Figure 7 For the present invention Figure 6 AA section view in the middle; Figure 8 This is a schematic diagram of the internal structure of the airbag of the present invention.

[0018] In the diagram: 1. Base; 2. Outer shell; 3. Drain pipe; 4. Inlet pipe; 5. Placement frame; 6. Drive motor; 7. Drive gear; 8. Driven gear; 9. Drive shaft; 10. Connecting shaft; 11. Unloading pipe; 12. Gas delivery pipe; 13. First delivery space; 14. Second delivery space; 15. Separation frame; 16. Suction pipe; 17. Connecting pipe; 18. First one-way valve; 19. Receiver; 20. Servo motor; 21. First gear; 22. Second gear; 23. Arc-shaped chute; 24. Sliding rod; 25. Arc-shaped plate; 26. Take-up roller; 27. Shielding film; 28. Airbag; 281. First space interlayer; 29. ​​Second space interlayer; 30. Second one-way valve; 31. Third one-way valve. Detailed Implementation

[0019] The technical solutions of the embodiments of the present invention will be clearly and completely described below with reference to the accompanying drawings. Obviously, the described embodiments are only some embodiments of the present invention, and not all embodiments. Based on the embodiments of the present invention, all other embodiments obtained by those skilled in the art without creative effort are within the scope of protection of the present invention.

[0020] Please see Figures 1-8 In this embodiment, a high-efficiency sludge removal device for sewage treatment includes a base 1, which can be installed in an external working area. The top of the base 1 is fixed to the outer shell 2 by welding. A through hole is opened at the lower end of the side wall of the outer shell 2, and a drain pipe 3 is inserted and fixedly connected to the through hole. The drain pipe 3 communicates with the inside of the outer shell 2 to facilitate the discharge of liquid inside the outer shell 2 to the outside. Specifically, a through hole is provided on the top of the outer shell 2, and the liquid inlet pipe 4 is fixedly connected to the top of the outer shell 2 by welding. A bearing is fixedly connected inside the through hole, and the inner ring of the bearing is fixedly connected to the placement frame 5, so that the placement frame 5 is rotatably connected to the top of the outer shell 2. A replenishment pipe is embedded in the top of the placement frame 5, and the replenishment pipe communicates with the inside of the placement frame 5, so as to facilitate filling the inside of the placement frame 5 with liquid.

[0021] Please see Figures 1-8 The base 1 is bolted to the side wall of the drive motor 6. The output shaft of the drive motor 6 extends horizontally and has a flat key or spline at the end. The output shaft of the drive motor 6 is fixedly connected to the center of the drive gear 7. A keyway is opened at the center of the gear 7 and is keyed to the output shaft of the drive motor 6. The drive gear 7 meshes with the driven gear 8. The center of the driven gear 8 is fixedly connected to the drive shaft 9 by a flat key or shrink sleeve. The bottom of the housing 2 is provided with a bearing seat and a set of angular contact ball bearings are installed. The lower end of the drive shaft 9 is fitted with the inner ring of the bearing. The outer ring of the bearing is pressed by the bearing cover. The bearing cover is bolted to the housing 2 and sealed with a paper gasket. The upper side wall of the drive shaft 9 is fixedly connected to the separation frame 15. Specifically, a connecting shaft 10 is rotatably connected to the bottom of the drive shaft 9, and the other end of the connecting shaft 10 is fixedly connected to the unloading pipe 11. The unloading pipe 11 is fixedly connected to the side wall of the base 1.

[0022] Please see Figures 1-3 A partition is provided inside the drive shaft 9 and the connecting shaft 10 to separate the drive shaft 9 and the connecting shaft 10 into a first conveying space 13 and a second conveying space 14. The unloading pipe 11 is connected to the first conveying space 13, and the second conveying space 14 is connected to the gas conveying pipe 12 fixedly connected to the side wall of the unloading pipe 11.

[0023] Please see Figures 5-8 Multiple sets of suction tubes 16 are fixedly connected inside the separation frame 15. Multiple sets of first one-way valves 18 are embedded in the inner side wall of the separation frame 15. The first one-way valves 18 are connected to the suction tubes 16. The suction tubes 16 are connected to the first conveying space 13 through the connecting tube 17. The suction tubes 16 are located at the bottom inside the separation frame 15. Specifically, a support seat 19 is fixedly connected to the bottom of the placement frame 5. A servo motor 20 is bolted to the support seat 19. The output shaft of the servo motor 20 drives the first gear 21 to rotate and connect with the support seat 19. A second gear 22 is rotatably connected to the bottom of the support seat 19. The second gear 22 meshes with the first gear 21. Specifically, the second gear 22 is provided with an arc-shaped groove 23, and a drive rod is slidably connected to the limiting groove provided in the receiving seat 19. The drive rod is rotatably connected to the sliding rod 24, and the other end of the sliding rod 24 is inserted into the arc-shaped groove 23. Specifically, the drive rod is fixedly connected to the arc plate 25, and a winding roller 26 is rotatably connected inside the arc plate 25 via a torsion spring. A shielding film 27 is wound on the winding roller 26, and the other end of the shielding film 27 is fixedly connected to the side wall of the arc plate 25 that are close to each other. More specifically, when the arc plate 25 and the separation frame 15 are pressed against each other, the separation frame 15 can rotate and drive the arc plate 25, the placement frame 5 and the receiving seat 19 to rotate together. When the arc plate 25 and the separation frame 15 are not pressed against each other, the separation frame 15 does not drive the arc plate 25 to rotate when it rotates. Specifically, please refer to Figures 5-8 Multiple sets of arc-shaped plates 25 are fixedly connected to the inner wall of the airbag 28. The bottom of the airbag 28 is rotatably connected to the top of the drive shaft 9 through a one-way valve. The first space interlayer 281 inside the airbag 28 is connected to the first conveying space 13 on the drive shaft 9. Specifically, please refer to Figures 5-8 The airbag 28 has two layers, and the inner and outer layers of the airbag 28 form two independent spaces respectively; Specifically, please refer to Figure 8 The independent spaces are the first space mezzanine 281 and the second space mezzanine 29; Specifically, the arc-shaped plate 25 is provided with multiple sets of second check valves 30 and third check valves 31 at equal intervals from top to bottom; Specifically, the second check valve 30 is connected to the first space interlayer 281, allowing the second check valve 30 to draw external liquid into the interior of the first space interlayer 281; Specifically, the third check valve 31 is connected to the second space interlayer 29, and the second space interlayer 29 can transfer liquid to the inside of the third check valve 31; Specifically, a filter screen is provided in the contact area between the first check valve 18, the second check valve 30, and the third check valve 31 and the external liquid. Specifically, the curved plate 25, the winding roller 26, and the shielding film 27 are provided in multiple sets; Specifically, a one-way valve is provided at the bottom of the placement frame 5, and the upper end of the one-way valve is connected to the inside of the placement frame 5 through a valve, while the lower end of the one-way valve is connected to the inside of the airbag 28.

[0024] Specifically, when treating wastewater during operation, the wastewater is introduced into the separation frame 15 inside the outer shell 2 through the inlet pipe 4. Then, the water is discharged outward through the separation frame 15 and falls into the bottom of the outer shell 2. The water can also be discharged outward through the drain pipe 3 at one end of the outer shell 2. The drain pipe 3 is connected to the external conveying pipe. Once the separation frame 15 contains a certain amount of sludge, the addition of wastewater is stopped, and the servo motor 20 is controlled to run. The servo motor 20 drives the first gear 21 to rotate, and the first gear 21 drives the second gear 22 to rotate. The second gear 22 drives the arc plate 25 to move through the arc-shaped slide groove 23 and the sliding rod 24. Multiple sets of arc plates 25 move outward. When the arc plates 25 move, the shielding film 27 on the arc plates 25 is stretched and unfolded by the winding roller 26, so that multiple sets of arc plates 25 form a ring, which facilitates the compression of the sludge in the separation frame 15 to form a ring. Multiple sets of arc-shaped plates 25 on the outer sidewalls squeeze the sludge accumulated in the lower part of the separation frame 15, causing the sludge to adhere to the inner sidewall of the separation frame 15 and form a hollow ring, so that the sludge is evenly distributed in the separation frame 15. When the sludge is squeezed, water is discharged outward through the through holes in the sidewall of the separation frame 15. When the arc plate 25 is unfolded, the arc plate 25 pulls the airbag 28 to unfold. The airbag 28 draws out the sludge in contact with it through the second one-way valve 30, so that the water inside the sludge enters the second one-way valve 30 and is then transferred to the first space interlayer 281 inside the airbag 28. At the same time, when the airbag 28 is deployed, the airbag 28 drives the first one-way valve 18 to extract the other end of the sludge through the connecting pipe 17, so that the first one-way valve 18 and the second one-way valve 30 simultaneously extract the outer and inner sides of the sludge, thereby accelerating the extraction of water from the sludge. When the arc plate 25 moves to its reset position, the arc plate 25 squeezes the air bag 28, causing the water inside the air bag 28 to be transferred to the first conveying space 13 through the one-way valve. In addition, the valve at the bottom of the placement frame 5 can be opened to connect the valve with the one-way valve. The air bag 28 draws the liquid in the placement frame 5 into the squeezing air bag 28 through the one-way valve, and mixes with the liquid inside the squeezing air bag 28, which makes it convenient to add treatment agents to the sewage. Then, the drive motor 6 is turned on to drive the drive gear 7 to rotate. The drive gear 7 drives the driven gear 8 to rotate. The driven gear 8 drives the separation frame 15 to rotate through the drive shaft 9. The separation frame 15 drives the sludge inside to rotate rapidly, so that the water inside the sludge is subjected to centrifugal force and discharged outward. The gas is connected to the gas delivery pipe 12 via an external gas delivery device. The gas delivery pipe 12 delivers the gas into the second delivery space 14, and then enters the second space interlayer 29 through the second delivery space 14. The air is then delivered to the third one-way valve 31, and the air is delivered to the surface of the sludge through the third one-way valve 31, thereby drying the sludge at multiple points at both ends.

[0025] The installation method, connection method, or setting method disclosed in this embodiment are all common mechanical connections. Any connection method that can achieve its beneficial effect can be implemented, so the specific structural composition and working principle will not be described in detail in this embodiment.

[0026] It should be noted that, in this document, relational terms such as "first" and "second" are used only to distinguish one entity or operation from another, and do not necessarily require or imply any such actual relationship or order between these entities or operations. Furthermore, the terms "comprising," "including," or any other variations thereof are intended to cover non-exclusive inclusion, such that a process, method, article, or apparatus that comprises a list of elements includes not only those elements but also other elements not expressly listed, or elements inherent to such a process, method, article, or apparatus. Without further limitations, an element defined by the phrase "comprising one..." does not exclude the presence of other identical elements in the process, method, article, or apparatus that includes said element.

[0027] Although embodiments of the invention have been shown and described, it will be understood by those skilled in the art that various changes, modifications, substitutions and alterations can be made to these embodiments without departing from the principles and spirit of the invention, the scope of which is defined by the appended claims and their equivalents.

Claims

1. A high-efficiency sludge removal device for sewage treatment, comprising a base (1), a housing (2) fixedly connected to the top of the base (1), and a drain pipe (3) fixedly connected to the lower end of the side wall of the housing (2). The top of the outer shell (2) is fixedly connected to the liquid inlet pipe (4), and the top of the outer shell (2) is rotatably connected to the placement frame (5); Its features are: The base (1) is bolted to the side wall of the drive motor (6). The output shaft of the drive motor (6) is fixedly connected to the center of the drive gear (7). The drive gear (7) meshes with the driven gear (8). The center of the driven gear (8) is fixedly connected to the drive shaft (9). The drive shaft (9) is rotatably connected to the bottom of the housing (2). The upper side wall of the drive shaft (9) is fixedly connected to the separation frame (15). The bottom of the drive shaft (9) is rotatably connected to a connecting shaft (10), and the other end of the connecting shaft (10) is fixedly connected to the unloading pipe (11). The unloading pipe (11) is fixedly connected to the side wall of the base (1). A partition is provided inside the drive shaft (9) and the connecting shaft (10) to separate the drive shaft (9) and the connecting shaft (10) into a first conveying space (13) and a second conveying space (14). The unloading pipe (11) is connected to the first conveying space (13), and the second conveying space (14) is connected to the gas conveying pipe (12) fixedly connected to the side wall of the unloading pipe (11).

2. The high-efficiency sludge removal equipment for wastewater treatment according to claim 1, characterized in that: Multiple sets of suction tubes (16) are fixedly connected inside the separation frame (15). Multiple sets of first one-way valves (18) are embedded in the inner side wall of the separation frame (15). The first one-way valves (18) are connected to the suction tubes (16). The suction tubes (16) are connected to the first conveying space (13) through the connecting tube (17). The suction tubes (16) are located at the bottom inside the separation frame (15).

3. The high-efficiency sludge removal equipment for wastewater treatment according to claim 1, characterized in that: The bottom of the placement frame (5) is fixedly connected to a support seat (19), and a servo motor (20) is bolted to the support seat (19). The output shaft of the servo motor (20) drives the first gear (21) to rotate and connect with the support seat (19). The bottom of the support seat (19) is rotatably connected to a second gear (22), which meshes with the first gear (21).

4. The high-efficiency sludge removal equipment for wastewater treatment according to claim 3, characterized in that: The second gear (22) is provided with an arc-shaped groove (23). A drive rod is slidably connected to the limiting groove provided in the receiving seat (19). The drive rod is rotatably connected to the sliding rod (24). The other end of the sliding rod (24) is inserted into the arc-shaped groove (23).

5. The high-efficiency sludge removal equipment for wastewater treatment according to claim 4, characterized in that: The drive rod is fixedly connected to the arc plate (25). Inside the arc plate (25), a winding roller (26) is rotatably connected via a torsion spring. A shielding film (27) is wound on the winding roller (26). The other end of the shielding film (27) is fixedly connected to the side wall of the arc plate (25) which is close to each other.

6. The high-efficiency sludge removal equipment for wastewater treatment according to claim 5, characterized in that: The inner walls of multiple sets of arc plates (25) are fixedly connected to the airbag (28). The bottom of the airbag (28) is rotatably connected to the top of the drive shaft (9) through a one-way valve. The first space interlayer (281) inside the airbag (28) is connected to the first delivery space (13) on the drive shaft (9).

7. The high-efficiency sludge removal equipment for wastewater treatment according to claim 6, characterized in that: The airbag (28) has two layers, and the inner and outer layers of the airbag (28) form two independent spaces respectively; The independent spaces are the first space mezzanine (281) and the second space mezzanine (29); The arc plate (25) is provided with multiple sets of second check valves (30) and third check valves (31) at equal intervals from top to bottom.

8. The high-efficiency sludge removal equipment for wastewater treatment according to claim 7, characterized in that: The second one-way valve (30) is connected to the first space interlayer (281); The third one-way valve (31) is connected to the second space interlayer (29); The first check valve (18), the second check valve (30), and the third check valve (31) are all equipped with a filter screen in the area where they come into contact with the external liquid.

9. The high-efficiency sludge removal equipment for wastewater treatment according to claim 5, characterized in that: Multiple sets of curved plate (25), winding roller (26) and shielding film (27) are provided; The bottom of the placement frame (5) is provided with a one-way valve, and the upper end of the one-way valve is connected to the inside of the placement frame (5) through a valve, and the lower end of the one-way valve is connected to the inside of the airbag (28).

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