Centrifugal sewage separation device

Abstract

The invention relates to a centrifugal sewage separation device which comprises an outer shell, the outer shell is transversely placed and comprises an oblique cone, a rear body and a connecting pipe body, the oblique cone is in a cone barrel shape, the rear body is in a volute shape, the large-area end of the oblique cone is communicated with the end of the rear body, and the small-area end of the oblique cone is communicated with the connecting pipe body; the sewage input pipe is communicated with the side wall of the connecting pipe body; the mud pipe is located below the rear body and communicated with the side face of the end, away from the oblique cone, of the rear body through a buffer pipe. The driving motor is mounted at one end of the rear body away from the oblique cone, an output shaft of the driving motor is coaxially and fixedly connected with a rotating shaft, a rotating disc is arranged at the end of the rotating shaft, and a plurality of impellers are circumferentially arranged at equal intervals at one end of the rotating disc close to the oblique cone; the clear liquid outlet pipe is inserted into the outer shell from the end, away from the inclined cone, of the connecting pipe body, and the clear liquid outlet pipe penetrating into the outer shell is located in the middle of the impellers. Impurities in the sewage can be conveniently separated from water.

Description

Technical Field

[0001] The present application relates to the technical field of separation devices, and in particular to a centrifugal sewage separation device. Background Art

[0002] Sewage separation generally uses physical methods to separate water from other impurities in sewage. Physical methods include using filter materials with different pore sizes to remove impurities from the water by adsorption or barrier methods. The most important adsorption method is adsorption with activated carbon, and the barrier method is to pass water through the filter material to prevent larger impurities from passing through, thereby obtaining cleaner water. In addition, physical methods also include sedimentation, which is to let impurities with smaller specific gravity float on the water surface and be fished out, or impurities with larger specific gravity settle below, thereby obtaining.

[0003] Related technology can refer to the Chinese patent with publication number CN117357965A, which discloses a centrifugal sewage filtering equipment, including a base and a first filter box body and a second filter box body fixedly arranged on the upper end surface of the base, a filter plate is arranged inside the first filter box body, and a centrifugal filter cartridge is rotatably arranged on the bottom surface of the second filter box body through a rotating seat, the liquid outlet end of the liquid pump is connected with the upper end of the centrifugal filter cartridge through a pipeline and the pipeline is rotatably connected with the centrifugal filter cartridge, a cleaning device for cleaning the residue on the surface of the centrifugal filter cartridge is arranged inside the second filter box body, a slag discharge pipe for driving the centrifugal filter cartridge to rotate is arranged at the lower end of the centrifugal filter cartridge, the slag discharge pipe extends to the bottom of the base, and a driving component for driving the slag discharge pipe to rotate is arranged at the bottom of the base.

[0004] With respect to the above-mentioned related technologies, sewage is filtered through a centrifugal filter barrel, and there are filter holes on the barrel wall of the centrifugal filter barrel. Since the impurities in the sewage are of different sizes, when the centrifugal filter barrel filters the impurities in the sewage, if the filter holes are larger than the impurities, no filtering effect will be achieved; if the filter holes are smaller than the impurities, the impurities will easily be blocked in the filter holes, affecting the sewage separation efficiency. Summary of the invention

[0005] In order to facilitate the separation of impurities and water in sewage, the present application provides a centrifugal sewage separation device.

[0006] The present application provides a centrifugal sewage separation device, which adopts the following technical solution: A centrifugal sewage separation device, comprising: An outer shell, the outer shell is placed transversely, and the outer shell includes an oblique cone, a rear body and a connecting pipe body, the oblique cone is in a cone barrel shape, the rear body is in a volute shape, the end of the oblique cone with a larger area is connected to the end of the rear body, and the end of the oblique cone with a smaller area is connected to the connecting pipe body; A sewage input pipe, the sewage input pipe is connected to the side wall of the connecting pipe body; A mud and dirt pipe, the mud and dirt pipe is located below the rear body, and the mud and dirt pipe is connected to the side surface of the rear body away from the oblique cone through a buffer pipe; A driving motor, the driving motor is mounted on the end of the rear body away from the inclined cone, the output shaft of the driving motor is coaxially fixedly connected with a rotating shaft, the rotating shaft coincides with the axis of the outer shell, a rotating disk is arranged at the end of the rotating shaft, and a plurality of impellers are arranged at equal intervals in the circumferential direction of the rotating disk near the end of the inclined cone; The clear liquid outlet pipe is inserted into the outer shell from the end of the connecting pipe body away from the inclined cone, and the clear liquid outlet pipe that penetrates into the outer shell is located in the middle of the impellers.

[0007] By adopting the above technical solution, sewage is transported from the sewage input pipe to the outer shell, and the sewage enters the outer shell through the gap between the impellers. The drive motor is started, and the output shaft of the drive motor drives the rotating shaft to rotate, so that the rotating disk and the impeller rotate, and the fluid in the outer shell is driven to rotate, thereby generating a centrifugal effect, thereby throwing away impurities with larger specific gravity in the sewage in a direction away from the output shaft of the drive motor, and transporting the impurities to the outside of the outer shell through the mud and sewage pipe. The water after centrifugal separation is discharged from the outside of the outer shell through the clear liquid outlet pipe located at the center of the outer shell, so as to facilitate the separation of impurities and water in the sewage.

[0008] Optionally, an inner casing is provided in the inclined cone, and a portion of the outer wall of the inclined cone where the impellers are located is connected to the inner casing.

[0009] By adopting the above technical solution, the inner shell is used to prevent sewage from entering the rear body from between the outer wall of the impeller and the inner wall of the inclined cone, and sewage is allowed to enter the rear body from the space between the impellers, thereby ensuring the effect of separating impurities and water in the sewage. At the same time, the inner shell and the outer shell cooperate with each other to make the fluid in the fluid device in a laminar state, thereby ensuring the separation effect.

[0010] Optionally, a first sealing ring is provided at one end of the impeller close to the connecting pipe body.

[0011] By adopting the above technical solution, sewage is prevented from entering the gap between the inner shell and the inclined cone through the first sealing ring.

[0012] Optionally, a rear end cover is provided at one end of the rear body away from the oblique cone, the rotating shaft passes through the rear end cover, and a second sealing ring is provided between the rotating shaft and the rear end cover.

[0013] By adopting the above technical solution, the rear end cover and the rotating shaft are sealed by the second sealing ring, thereby improving the sealing performance of the overall device.

[0014] Optionally, a cover door is detachably connected to one end of the mud and sewage pipe, and a driving component for driving sewage discharge is provided at the other end of the mud and sewage pipe.

[0015] By adopting the above technical solution, impurities in the mud and dirt pipe can be conveniently discharged through the driving component, and the mud and dirt pipe can be conveniently cleaned by opening the cover door.

[0016] Optionally, a sewage valve is provided on the sludge pipe.

[0017] By adopting the above technical solution, the opening and closing of the mud and sewage pipe is controlled by the sewage valve.

[0018] In summary, the present application includes at least one of the following beneficial technical effects: Existing sewage separation devices usually adopt filter screens or filter cloth structures. During the sewage separation process, due to the different sizes of impurities in the filter screen, the filter screen is easily blocked, thereby reducing the separation efficiency. The filter screen structure is eliminated in the device of the present application to avoid the problem of filter screen blockage. The separation is performed by high-speed rotation and centrifugal force. At the same time, when the cyclone rotates, the cyclone is greatly affected by the flow rate. When the flow rate is large, the cyclone load is high and the separation effect is poor. When the flow rate is small, the separation force is small, the separation effect is insufficient, and the separation effect of the cyclone is uncontrollable. The present application uses the output shaft of the driving motor as the driving force, and drives the impeller to rotate through the rotating disk. The speed can be adjusted. Regardless of the size of the impurity particles, the ideal separation effect can be achieved by adjusting the output shaft speed of the driving motor and the sewage flow rate. Compared with the filter screen, filter cloth and cyclone, the separation effect of the present device is more stable, adaptable, fast and efficient. Compared with the prior art, since the inclined cone is in the shape of a cone barrel, the inner wall of the inner shell is inclined in accordance with the inclined cone, so that the impurities adhering to the inner wall of the inner shell are moved toward the rear body away from the rotating shaft under the combined effect of centrifugal force and the inclined cone barrel, and enter the rear body in the shape of a volute, thereby preventing the impurities from adhering to the inner wall of the inner shell. BRIEF DESCRIPTION OF THE DRAWINGS

[0019] Figure 1 It is a schematic diagram of the overall structure of a centrifugal sewage separation device.

[0020] Figure 2 It is a schematic diagram for showing the internal structure of the outer shell in the embodiment of the present application.

[0021] Figure 3 It is a schematic diagram for showing the connection relationship between the outer shell and the buffer tube in the embodiment of the present application.

[0022] Explanation of the reference numerals in the accompanying drawings: 1. outer shell; 11. oblique cone; 12. rear body; 13. connecting pipe body; 14. rear end cover; 15. second sealing ring; 2. sewage inlet pipe; 3. driving motor; 31. rotating shaft; 32. rotating disk; 321. fixing bolt; 33. impeller; 331. inner shell; 332. first sealing ring; 4. clear liquid outlet pipe; 5. mud pipe; 51. buffer pipe; 52. cover door; 53. drain valve. DETAILED DESCRIPTION

[0023] The present application is further described in detail below in conjunction with all the accompanying drawings.

[0024] The embodiment of the present application discloses a centrifugal sewage separation device.

[0025] Reference Figure 1 and Figure 2 A centrifugal sewage separation device comprises a transversely placed outer shell 1, the outer shell 1 is transversely placed, the outer shell 1 comprises an inclined cone 11, a rear body 12 and a connecting pipe 13, the inclined cone 11 is in a cone barrel shape, the rear body 12 is in a volute shape, the end of the inclined cone 11 with a larger area is connected to the end of the rear body 12, and the end of the inclined cone 11 with a smaller area is connected to the connecting pipe 13. The side wall of the connecting pipe 13 is connected to a sewage input pipe 2, and the sewage is transported to the outer shell 1 through the sewage input pipe 2.

[0026] Reference Figure 1 and Figure 2 The end of the rear body 12 away from the oblique cone 11 is equipped with a driving motor 3, and the output shaft of the driving motor 3 is coaxially fixedly connected with a rotating shaft 31, and the rotating shaft 31 coincides with the axis of the outer shell 1, and the end of the rear body 12 away from the oblique cone 11 is provided with a rear end cover 14, and the rotating shaft 31 passes through the rear end cover 14. A second sealing ring 15 is provided between the rotating shaft 31 and the rear end cover 14, and the second sealing ring 15 is used to seal the rear end cover 14 and the rotating shaft 31, thereby improving the sealing performance of the overall device. A rotating disk 32 is connected to the end of the rotating shaft 31, and a connecting hole is provided in the middle of the rotating disk 32, and the rotating shaft 31 passes through the connecting hole. A threaded hole is provided in the middle of the end of the rotating shaft 32 away from the driving motor 3, and a fixing bolt 321 is passed through the rotating shaft 32, and the fixing bolt 321 passes through the threaded hole and the fixing bolt abuts against the rotating disk 32.

[0027] Reference Figure 2The inner casing 331 is provided in the inclined cone 11. The outer walls of the impellers 33 located in the inclined cone 11 are fixedly connected through the inner casing 331. The inner casing 331 prevents sewage from entering the rear body 12 from between the outer wall of the impeller 33 and the inner wall of the inclined cone 11, and allows sewage to enter the rear body 12 from the gap between the impellers 33, thereby ensuring the effect of separating impurities from water in the sewage. A gap is left between the outer wall of the inner casing 331 and the inner wall of the inclined cone 11, and the gap spacing is 2mm, ensuring that the inner casing 331 can rotate in the inclined cone 11.

[0028] Reference Figure 2 A plurality of impellers 33 are arranged at equal intervals in the circumferential direction on the rotating disk 32 near one end of the inclined cone 11. The driving motor 3 is started, and the output shaft of the driving motor 3 drives the rotating shaft 31 to rotate, so that the rotating disk 32 and the impeller 33 rotate, and the fluid in the outer shell 1 rotates, generating a centrifugal effect, so that the impurities with a larger specific gravity in the sewage are thrown off to the inner wall of the inner shell 331.

[0029] Reference Figure 2 Due to the setting of the inner shell, the inner shell and the outer shell cooperate with each other, so that the fluid in the fluid device is in a laminar flow state, avoiding the friction between the fluid and the inner wall of the outer shell to form a steady flow, thereby improving the stability of separating impurities.

[0030] Reference Figure 1 Compared with the prior art, since the inclined cone 11 is in a cone barrel shape, the inner wall of the inner shell 331 is in an inclined state in accordance with the inclined cone 11, so that the impurities adhering to the inner wall of the inner shell 331 are moved toward the rear body 12 away from the rotating shaft under the combined effect of centrifugal force and the cone barrel of the inclined cone 11, and enter the volute-shaped rear body 12, thereby preventing the impurities from adhering to the inner wall of the inner shell 331.

[0031] Reference Figure 1 and Figure 3 A mud pipe 5 is arranged below the rear body 12 of the outer shell 1. The mud pipe 5 is connected to the side surface of the rear body 12 away from the oblique cone 11 through a buffer pipe 51. The impurities in the rear body are discharged smoothly from the mud pipe through the buffer pipe under the action of the rear body of the volute structure.

[0032] Reference Figure 1 and Figure 2 A clear liquid outlet pipe 4 is provided at one end of the connecting pipe body 13 away from the inclined cone 11, and the clear liquid outlet pipe 4 extending into the outer shell 1 is located in the middle of the impellers 33. The water after centrifugal separation is discharged from the outer shell 1 through the clear liquid outlet pipe 4 located at the center of the outer shell 1.

[0033] Reference Figure 3One end of the dirt pipe 5 is detachably connected with a cover door 52, and the dirt pipe 5 can be cleaned by opening the cover door 52. The other end of the dirt pipe 5 is provided with a driving component for driving the sewage discharge, and the driving component can be a delivery pump or an auger to transport the impurities, so as to conveniently discharge the impurities in the dirt pipe 55. A sewage valve 53 is installed on the dirt pipe 5, and the opening and closing of the dirt pipe 5 is controlled by the sewage valve 53.

[0034] The existing sewage separation device uses a filter screen or filter cloth structure. During the sewage separation process, due to the different sizes of impurity particles, the filter screen is easily blocked, thereby reducing the separation efficiency. The filter screen structure is eliminated in the device of the present application to avoid the problem of filter screen blockage. The separation is carried out by high-speed rotation and centrifugal force. At the same time, when the cyclone rotates, the cyclone is greatly affected by the flow rate. When the flow rate is large, the cyclone load is high and the separation effect is poor. When the flow rate is small, the separation force is small, the separation effect is insufficient, and the cyclone separation effect is uncontrollable. The present application uses the output shaft of the driving motor 3 as the driving force, and drives the impeller 33 to rotate through the rotating disk 32. The speed can be adjusted, regardless of the size of the impurity particles. The ideal separation effect is achieved by adjusting the output shaft speed of the driving motor 3 and the sewage flow rate. Compared with the filter screen, filter cloth and cyclone, the separation effect of the present device is more stable, adaptable, fast and efficient.

[0035] The implementation principle of a centrifugal sewage separation device in an embodiment of the present application is as follows: sewage is transported into an outer shell 1 through a sewage input pipe 2, a driving motor 3 is started, and an output shaft of the driving motor 3 drives a rotating shaft 31 to rotate, so that a rotating disk 32 and an impeller 33 are rotated, and the fluid in the outer shell 1 is driven to rotate, thereby generating a centrifugal effect, thereby moving impurities with a larger specific gravity in the sewage away from the center of the outer shell 1, and the water after centrifugal separation is discharged out of the outer shell 1 through a clear liquid outlet pipe 4 located at the center of the outer shell 1, and impurities in the sewage are transported to a sludge pipe 5 through a buffer pipe 51, and the impurities are discharged through the sludge pipe 5.

[0036] The above are all preferred embodiments of the present application, and the protection scope of the present application is not limited thereto. Therefore, any equivalent changes made according to the structure, shape, and principle of the present application should be included in the protection scope of the present application.

Claims

1. A centrifugal sewage separation device, characterized in that: include: An outer shell (1), the outer shell (1) comprising an inclined cone (11), a rear body (12) and a connecting pipe (13), the inclined cone (11) being in the shape of a cone barrel, the rear body (12) being in the shape of a volute, the end of the inclined cone (11) having a larger area being connected to the end of the rear body (12), and the end of the inclined cone (11) having a smaller area being connected to the connecting pipe (13); A sewage input pipe (2), wherein the sewage input pipe (2) is connected to the side wall of the connecting pipe body (13); A mud and dirt pipe (5), the mud and dirt pipe (5) being located below the rear body (12), and the mud and dirt pipe (5) being connected to a side surface of the rear body (12) at one end away from the oblique cone (11) via a buffer pipe (51); A driving motor (3), the driving motor (3) being mounted at one end of the rear body (12) away from the inclined cone (11), the output shaft of the driving motor (3) being coaxially fixedly connected with a rotating shaft (31), the rotating shaft (31) coinciding with the axis of the outer shell (1), a rotating disk (32) being arranged at the end of the rotating shaft (31), and a plurality of impellers (33) being arranged at equal intervals in the circumferential direction at one end of the rotating disk (32) close to the inclined cone (11); A clear liquid outlet pipe (4) is inserted into the outer shell (1) from one end of the connecting pipe body (13) away from the inclined cone (11), and the clear liquid outlet pipe (4) is inserted into the outer shell (1) and is located in the middle of the plurality of impellers (33).

2. A centrifugal sewage separation device according to claim 1, characterized in that: An inner casing (331) is arranged inside the inclined cone (11), and a portion of the outer wall of the plurality of impellers (33) located on the inclined cone (11) is connected to the inner casing (331).

3. A centrifugal sewage separation device according to claim 2, characterized in that: The impeller (33) is provided with a first sealing ring (332) at one end close to the connecting pipe body (13).

4. A centrifugal sewage separation device according to claim 1, characterized in that: A rear end cover (14) is provided at one end of the rear body (12) away from the oblique cone (11); the rotating shaft (31) passes through the rear end cover (14); and a second sealing ring (15) is provided between the rotating shaft (31) and the rear end cover (14).

5. A centrifugal sewage separation device according to claim 1, characterized in that: One end of the mud and sewage pipe (5) is detachably connected to a cover door (52), and the other end of the mud and sewage pipe (5) is provided with a driving component for driving sewage discharge.

6. A centrifugal sewage separation device according to claim 1, characterized in that: The mud and dirt pipe (5) is provided with a sewage discharge valve (53).

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