A centrifugal sewage separation device

Abstract

This application relates to a centrifugal wastewater separation device, comprising: an outer shell, placed horizontally, including an inclined cone, a rear body, and a connecting pipe; the inclined cone is cone-shaped, and the rear body is volute-shaped; the larger end of the inclined cone is connected to the end of the rear body, and the smaller end of the inclined cone is connected to the connecting pipe; a wastewater inlet pipe is connected to the side wall of the connecting pipe; a sludge pipe is located below the rear body, and the sludge pipe is connected to the side of the rear body away from the inclined cone via a buffer pipe; a drive motor is installed at the rear body away from the inclined cone, and a rotating shaft is coaxially fixedly connected to the output shaft of the drive motor; a rotating disk is provided at the end of the rotating shaft, and several impellers are equidistantly arranged circumferentially near the end of the rotating disk close to the inclined cone; a clear liquid outlet pipe is inserted into the outer shell from the end of the connecting pipe away from the inclined cone, extending into the space between the outer shells, and is located in the middle of the impellers. This facilitates the separation of impurities from water in wastewater.

Description

Technical Field

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

[0002] Wastewater separation generally employs physical methods to separate water from other impurities in wastewater. These methods include using filter media with varying pore sizes, employing adsorption or barrier methods to remove impurities from the water. Among adsorption methods, activated carbon is a significant example. Barrier methods involve passing water through the filter media, preventing larger impurities from passing through, thus obtaining cleaner water. Additionally, physical methods also include sedimentation, which allows lighter impurities to float to the surface and be removed, or heavier impurities to settle at the bottom, thereby obtaining cleaner water.

[0003] Related technology can be found in Chinese Patent Publication No. CN117357965A, which discloses a centrifugal wastewater filtration device, including a base and a first filter box and a second filter box fixed on the upper surface of the base. The first filter box is equipped with a filter plate inside. The bottom surface of the second filter box is equipped with a centrifugal filter cylinder that is rotatably mounted on a rotating seat. The outlet end of the liquid pump is connected to the upper end of the centrifugal filter cylinder through a pipe and the pipe is rotatably connected to the centrifugal filter cylinder. The second filter box is equipped with a cleaning device for cleaning the residue on the surface of the centrifugal filter cylinder. The lower end of the centrifugal filter cylinder is connected to a slag discharge pipe that drives it to rotate. The slag discharge pipe extends to the bottom of the base. The bottom of the base is equipped with a drive assembly that drives the slag discharge pipe to rotate.

[0004] Regarding the aforementioned technologies, wastewater is filtered using a centrifugal filter barrel. The barrel wall has filter holes. Since the impurities in the wastewater vary in size, when the centrifugal filter barrel filters the impurities, if the filter holes are too large relative to the impurities, the filtering effect is insufficient. If the filter holes are too small relative to the impurities, the impurities are easily blocked in the filter holes, affecting the wastewater separation efficiency. Summary of the Invention

[0005] To facilitate the separation of impurities from water in wastewater, this application provides a centrifugal wastewater separation device.

[0006] This application provides a centrifugal wastewater separation device, which adopts the following technical solution:

[0007] A centrifugal wastewater separation device, comprising:

[0008] The outer shell is placed horizontally and includes an oblique cone, a rear body, and a connecting tube. The oblique cone is cone-shaped, the rear body is volute-shaped, the larger end of the oblique cone is connected to the end of the rear body, and the smaller end of the oblique cone is connected to the connecting tube.

[0009] A sewage inlet pipe, wherein the sewage inlet pipe is connected to the side wall of the connecting pipe body;

[0010] The mud pipe is located below the rear body and is connected to the side of the rear body away from the oblique cone through a buffer pipe.

[0011] A drive motor is installed at the rear end of the body away from the inclined cone. The output shaft of the drive motor is coaxially fixedly connected to a rotating shaft. The rotating shaft coincides with the axis of the outer shell. A rotating disk is provided at the end of the rotating shaft. Several impellers are circumferentially and equidistantly arranged at one end of the rotating disk near the inclined cone.

[0012] The clear liquid outlet pipe is inserted into the outer casing from the end of the connecting pipe away from the inclined cone, and the clear liquid outlet pipe is located in the middle of several impellers.

[0013] By adopting the above technical solution, sewage is transported from the sewage inlet pipe into the outer casing. The sewage enters the outer casing 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, causing the rotating disk and impeller to rotate. This causes the fluid inside the outer casing to rotate, generating centrifugal force, which throws the heavier impurities in the sewage away from the output shaft of the drive motor. The impurities are transported to the outside of the outer casing through the sludge pipe. The water after centrifugal separation is discharged from the outer casing through the clear liquid outlet pipe located at the center of the outer casing, which facilitates the separation of impurities from water in the sewage.

[0014] Optionally, an inner shell is provided inside the inclined cone, and a plurality of the impellers are located on a portion of the outer wall of the inclined cone and connected to the inner shell.

[0015] By adopting the above technical solution, the inner shell prevents sewage from entering the rear body from between the outer wall of the impeller and the inner wall of the inclined cone, allowing sewage to enter the rear body from the space between the impellers, thus ensuring the separation of impurities and water in the sewage. At the same time, the inner and outer shells cooperate with each other to keep the fluid in the fluid device in a laminar flow state, ensuring the separation effect.

[0016] Optionally, a first sealing ring is provided at the end of the impeller near the connecting pipe body.

[0017] By adopting the above technical solution, the first sealing ring prevents sewage from entering the gap between the inner shell and the inclined cone.

[0018] Optionally, a rear end cover is provided at the end of the rear body away from the inclined 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.

[0019] By adopting the above technical solution, the second sealing ring seals the rear end cover and the rotating shaft, thereby improving the overall sealing performance of the device.

[0020] Optionally, one end of the sludge pipe is detachably connected to a cover, and the other end of the sludge pipe is provided with a drive assembly for driving the discharge of sludge.

[0021] By adopting the above technical solution, the impurities in the mud pipe can be easily discharged through the drive component, and the mud pipe can be easily cleaned by opening the cover.

[0022] Optionally, a drain valve is provided on the sludge pipe.

[0023] By adopting the above technical solution, the opening and closing of the sludge pipe is controlled by the sewage discharge valve.

[0024] In summary, this application includes at least one of the following beneficial technical effects:

[0025] Existing wastewater separation devices typically employ filter screens or filter cloths. During wastewater separation, the varying particle sizes of impurities can easily cause filter screen clogging, leading to decreased separation efficiency. This application eliminates the filter screen structure, avoiding clogging issues. Separation is achieved through high-speed rotation and centrifugal force. Furthermore, the hydrocyclone's performance is significantly affected by flow rate; high flow rates result in high load and poor separation, while low flow rates lead to weak separation force and insufficient separation. The hydrocyclone's separation effect is also uncontrollable. This application utilizes the output shaft of a drive motor as the driving force, which rotates the impeller via a rotating disk. The rotation speed can be adjusted regardless of impurity particle size. By adjusting the output shaft speed of the drive motor and the wastewater flow rate, an ideal separation effect is achieved. Compared to filter screens, filter cloths, and hydrocyclones, this device offers more stable separation, greater adaptability, faster separation speed, and higher efficiency.

[0026] Compared with the existing technology, since the inclined cone is cone-shaped, the inner wall of the inner shell is inclined to adapt to the inclined cone. This causes the impurities adhering to the inner wall of the inner shell to move away from the axis of rotation and into the rear body under the combined action of centrifugal force and the cone shape of the inclined cone. This prevents the impurities from adhering to the inner wall of the inner shell. Attached Figure Description

[0027] Figure 1 This is a schematic diagram of the overall structure of a centrifugal wastewater separation device.

[0028] Figure 2 This is a schematic diagram illustrating the internal structure of the outer shell in the embodiments of this application.

[0029] Figure 3 This is a schematic diagram illustrating the connection relationship between the outer shell and the buffer tube in the embodiments of this application.

[0030] Explanation of reference numerals in the attached drawings: 1. Outer shell; 11. Inclined cone; 12. Rear body; 13. Connecting pipe; 14. Rear end cover; 15. Second sealing ring; 2. Sewage inlet pipe; 3. Drive motor; 31. Rotating shaft; 32. Rotating disc; 321. Fixing bolt; 33. Impeller; 331. Inner shell; 332. First sealing ring; 4. Clear liquid outlet pipe; 5. Sludge pipe; 51. Buffer pipe; 52. Cover; 53. Sewage valve. Detailed Implementation

[0031] The present application will be further described in detail below with reference to all the accompanying drawings.

[0032] This application discloses a centrifugal sewage separation device.

[0033] Reference Figure 1 and Figure 2 A centrifugal wastewater separation device includes a horizontally placed outer shell 1. The outer shell 1 includes an inclined cone 11, a rear body 12, and a connecting pipe 13. The inclined cone 11 is cone-shaped, and the rear body 12 is volute-shaped. 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. A wastewater inlet pipe 2 is connected to the side wall of the connecting pipe 13, through which wastewater is transported into the outer shell 1.

[0034] Reference Figure 1 and Figure 2 A drive motor 3 is mounted on the rear body 12 away from the inclined cone 11. The output shaft of the drive motor 3 is coaxially fixedly connected to a rotating shaft 31, which coincides with the axis of the outer shell 1. A rear end cover 14 is provided on the rear body 12 away from the inclined 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 to seal the rear end cover 14 and the rotating shaft 31, thereby improving the overall sealing performance of the device. A rotating disk 32 is connected to the end of the rotating shaft 31. A connecting hole is opened in the middle of the rotating disk 32, through which the rotating shaft 31 passes. A threaded hole is opened in the middle of the end of the rotating shaft 31 away from the drive motor 3. A fixing bolt 321 is passed through the rotating disk 32, and the fixing bolt 321 abuts against the rotating shaft 31.

[0035] Reference Figure 2An inner shell 331 is provided inside the inclined cone 11. The outer walls of several impellers 33 located in the inclined cone 11 are fixedly connected to the inner shell 331. The inner shell 331 prevents sewage from entering the rear body 12 from between the outer walls of the impellers 33 and the inner wall of the inclined cone 11, allowing sewage to enter the rear body 12 through the gaps between the impellers 33, thus ensuring the separation of impurities from water in the sewage. A gap of 2mm is left between the outer wall of the inner shell 331 and the inner wall of the inclined cone 11 to ensure that the inner shell 331 can rotate within the inclined cone 11.

[0036] Reference Figure 2 Several impellers 33 are circumferentially spaced at equal intervals near one end of the inclined cone 11 on the rotating disk 32. When the drive motor 3 is started, the output shaft of the drive motor 3 drives the rotating shaft 31 to rotate, causing the rotating disk 32 and the impellers 33 to rotate, which in turn causes the fluid inside the outer shell 1 to rotate, generating a centrifugal force, thereby throwing the heavier impurities in the sewage off onto the inner wall of the inner shell 331.

[0037] Reference Figure 2 Due to the design of the inner shell, the fluid inside the fluid device is in a laminar flow state through the cooperation between the inner shell and the outer shell, which avoids the fluid from rubbing against the inner wall of the outer shell to form a stable flow and improves the stability of impurity separation.

[0038] Reference Figure 1 Compared with the prior art, since the inclined cone 11 is in the shape of a cone, the inner wall of the inner shell 331 is adapted to the inclined cone 11 and is in an inclined state. This causes the impurities adhering to the inner wall of the inner shell 331 to move away from the axis of rotation and into the rear body 12 under the combined action of centrifugal force and the cone shape of the inclined cone 11, thus preventing the impurities from adhering to the inner wall of the inner shell 331.

[0039] Reference Figure 1 and Figure 3 A mud pipe 5 is provided below the rear body 12 of the outer shell 1. The mud pipe 5 is connected to the side of the rear body 12 away from the oblique cone 11 through a buffer pipe 51. Impurities in the rear body are smoothly discharged from the mud pipe through the buffer pipe under the action of the rear body of the volute structure.

[0040] Reference Figure 1 and Figure 2 The end of the connecting pipe 13 away from the inclined cone 11 is provided with a clear liquid outlet pipe 4. The clear liquid outlet pipe 4, which extends into the space between the outer shell 1, is located in the middle of several impellers 33. The water after centrifugal separation is discharged out of the outer shell 1 through the clear liquid outlet pipe 4 located in the center of the outer shell 1.

[0041] Reference Figure 3One end of the sludge pipe 5 is detachably connected to a cover 52, which allows for easy cleaning of the inside of the sludge pipe 5 by opening the cover 52. The other end of the sludge pipe 5 is equipped with a drive assembly for driving the discharge of wastewater. The drive assembly can be a conveying pump or an auger to transport impurities and facilitate the discharge of impurities from the sludge pipe 55. A drain valve 53 is installed on the sludge pipe 5, which controls the opening and closing of the sludge pipe 5.

[0042] Existing wastewater separation devices employ filter screens or filter cloths. During wastewater separation, the varying particle sizes of impurities easily cause filter screen clogging, leading to decreased separation efficiency. This application eliminates the filter screen structure, avoiding clogging. Separation is achieved through high-speed rotation and centrifugal force. However, the hydrocyclone's performance is significantly affected by flow rate; high flow rates result in high load and poor separation, while low flow rates lead to insufficient separation force and uncontrollable separation efficiency. This application utilizes the output shaft of a drive motor 3 as the driving force, which in turn drives the impeller 33 via a rotating disk 32. The rotation speed is adjustable, regardless of impurity particle size. By adjusting the output shaft speed of the drive motor 3 and the wastewater flow rate, an ideal separation effect is achieved. Compared to filter screens, filter cloths, and hydrocyclones, this device offers more stable separation, greater adaptability, faster separation speed, and higher efficiency.

[0043] The implementation principle of a centrifugal sewage separation device according to an embodiment of this application is as follows: sewage is transported to the outer shell 1 through the sewage inlet pipe 2, the drive motor 3 is started, and the output shaft of the drive motor 3 drives the rotating shaft 31 to rotate, causing the rotating disk 32 and impeller 33 to rotate, which drives the fluid in the outer shell 1 to rotate, generating centrifugal force, thereby moving the heavier impurities in the sewage away from the center of the outer shell 1. 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, and the impurities in the sewage are transported to the sludge pipe 5 through the buffer pipe 51, and the impurities are discharged through the sludge pipe 5.

[0044] The above are all preferred embodiments of this application, and are not intended to limit the scope of protection of this application. Therefore, all equivalent changes made in accordance with the structure, shape and principle of this application should be covered within the scope of protection of this application.

Claims

1. A centrifugal wastewater separation device, characterized in that, include: The outer shell (1) is placed horizontally. The outer shell (1) includes an oblique cone (11), a rear body (12) and a connecting tube (13). The oblique cone (11) is cone-shaped, and the rear body (12) is volute-shaped. The larger end of the oblique cone (11) is connected to the end of the rear body (12), and the smaller end of the oblique cone (11) is connected to the connecting tube (13). Wastewater inlet pipe (2), which is connected to the side wall of connecting pipe body (13); Sludge pipe (5), the sludge pipe (5) is located below the rear body (12), and the sludge pipe (5) is connected to the rear body (12) through a buffer pipe (51); A drive motor (3) is installed at the end of the rear body (12) away from the inclined cone (11). The output shaft of the drive motor (3) is coaxially fixedly connected to a rotating shaft (31). The rotating shaft (31) coincides with the axis of the outer shell (1). A rear end cover (14) is provided at the end of the rear body (12) away from the inclined cone (11). 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). A rotating disk (32) is connected to the end of the rotating shaft (31). A connecting hole is opened in the middle of the rotating disk (32). The rotating shaft (31) passes through the connecting hole. Several impellers (33) are circumferentially and equidistantly spaced at the end of the rotating disk (32) near the inclined cone (11). The clear liquid outlet pipe (4) is inserted into the outer shell (1) from the end of the connecting pipe body (13) away from the inclined cone (11). The clear liquid outlet pipe (4) is located in the middle of several impellers (33) between the outer shells (1).

2. The centrifugal wastewater separation device according to claim 1, characterized in that: An inner shell (331) is provided inside the inclined cone (11), and a plurality of impellers (33) are located on the outer wall of the inclined cone (11) and connected to the inner shell (331).

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

4. The centrifugal sewage separation device according to claim 1, characterized in that: One end of the sludge pipe (5) is detachably connected to a cover (52), and the other end of the sludge pipe (5) is provided with a drive assembly for driving sewage discharge.

5. A centrifugal wastewater separation device according to claim 1, characterized in that: A drain valve (53) is installed on the sludge pipe (5).

Images