A super gravity sewage separator

Abstract

This invention belongs to the field of wastewater treatment technology, specifically a high-gravity wastewater separator that solves the technical problems in the background art. It includes a power unit and a wastewater separation device. The wastewater separation device includes a main shaft, a wastewater tank, a clear water tank, a wastewater separation tank, and a sludge tank. The power unit drives the main shaft to rotate. The main shaft runs vertically through and is supported within the wastewater tank, clear water tank, and wastewater separation tank. This invention offers high wastewater treatment efficiency; the entire process is continuous and very short; the treated water quality is good, with suspended particulate matter almost completely separated, resulting in high-quality effluent with few suspended particles; there is no secondary pollution; the sludge has low water content and is easily discharged, preventing secondary pollution of the treated water; it significantly reduces wastewater treatment investment costs, saving the high subsequent equipment investment costs of traditional wastewater treatment methods; compared with traditional processes and equipment, it has a smaller footprint, lower investment and energy consumption, and fewer equipment failures.

Description

Technical Field

[0001] The invention belongs to the technical field of sewage treatment, and relates to a sewage treatment separation device, in particular to a supergravity sewage separator. Background Art

[0002] At present, the environmental protection situation is very severe, and the environmental protection industry is in the ascendant. Due to the constraints of technology and equipment, sewage treatment has high costs and a long construction period.

[0003] At present, sewage sedimentation tanks are usually used in the early stages of sewage treatment to achieve sewage sedimentation, which is not only time-consuming, but also has low effluent quality. The final sludge treatment is not only time-consuming, but also has a particularly high water content in the sludge.

[0004] Existing sewage treatment technologies and equipment have the following defects to varying degrees: 1. After sewage treatment, the effluent quality is not high and there are many suspended particles; 2. The flocculent sedimentation takes a long time, which affects the sewage treatment efficiency; 3. When cleaning, the light sludge is disturbed and re-enters the clean water, resulting in secondary sedimentation; 4. The current sedimentation tank occupies a large area and is very expensive; 5. The sludge has a high water content, which makes it difficult to press the sludge into cakes in the next step. Therefore, we designed and developed a super gravity sewage separator to address the above shortcomings. Summary of the invention

[0005] The present invention aims to solve the technical problems in the background technology. To this end, the present invention proposes a super gravity sewage separator.

[0006] The technical solution adopted by the present invention to solve its technical problems is: a supergravity sewage separator, including a power device and a sewage separation device, the sewage separation device including a main shaft and a sewage bin, a clean water bin, a sewage separation bin and a sludge bin arranged adjacent to each other from top to bottom, the power device drives the main shaft to rotate; a drain port is provided at the bottom of the sewage bin; a water inlet is provided at the bottom of the clean water bin, a sewage separation cylinder is vertically provided inside the sewage separation bin, the drain port of the sewage bin passes through the water inlet of the clean water bin through a connecting sleeve and is rotatably connected to the top of the sewage separation cylinder, and the drain port of the sewage bin is fixedly connected to the connecting sleeve; the side wall of the sewage separation bin is conical and the upper opening is smaller than the lower opening; the water inlet of the clean water bin is sealed and connected to the upper opening of the side wall of the sewage separation bin; the main The shaft passes through and is supported in the sewage bin, clean water bin and sewage separation bin from top to bottom, the main shaft is inserted in the drain port, connecting sleeve and sewage separation barrel of the sewage bin; the main shaft drives the sewage separation barrel; the main shaft is connected to a sewage auxiliary impeller sealing device for sealing the sewage bin at the top of the inner cavity of the sewage bin; the bottom of the sewage separation barrel is sealed with the main shaft and the bottom is fixedly connected to the main shaft, the side wall of the sewage separation barrel is provided with evenly distributed through holes, and the outer wall of the sewage separation barrel is provided with a plurality of blades distributed in a circumferential direction; the sewage bin is provided with a sewage inlet connected to the outside, the clean water bin is provided with a clean water outlet connected to the outside, the lower opening of the side wall of the sewage separation barrel is sealed with the top of the sludge bin, and the bottom of the sludge bin is provided with a sewage outlet.

[0007] On the premise that the sewage bin, the clean water bin and the sewage separation bin are arranged adjacent to each other, the drain outlet of the sewage bin passes through the water inlet of the clean water bin through the connecting sleeve and is rotatably connected to the top of the sewage separation cylinder. Then the connecting sleeve directly connects the sewage bin and the sewage separation cylinder, and the connecting sleeve separates the sewage from the clean water bin, which can effectively prevent the sewage from entering the clean water bin and prevent the clean water bin from being polluted; the sewage separation cylinder is driven by the main shaft to rotate, but the connecting sleeve does not rotate, so the connecting sleeve is rotatably connected to the sewage separation cylinder; the sewage separation cylinder rotates with the main shaft, and the rotation process is the supergravity cement separation process. The cylinder is centrifuged. During the centrifugal process, the sewage is thrown out from the through hole on the sewage separation cylinder at high pressure and then washed onto the blades of the sewage separation cylinder. The blades beat the sludge onto the side wall of the sewage separation bin. Due to the different weights of sludge and water, the clean water and sludge are separated under the action of high-speed centrifugation, and the clean water overflows upward, and finally overflows from the upper opening of the sewage separation bin to the clean water bin and then discharged from the clean water outlet. The impurities, sludge, etc. in the sewage are thrown onto the side wall of the sewage separation bin and slide down due to their own gravity and fall into the sludge bin. The sewage outlet of the sludge bin is connected to a sludge pump for pumping sludge when working, so the sludge is pumped by the sludge pump and smoothly discharged from the sludge bin. The sewage secondary impeller sealing device can effectively prevent the sewage in the sewage bin from flowing out of the sewage bin. The sewage separation bin is configured to be conical in shape, which can help clean water to be discharged upward along its inner wall, and the sludge to slide downward and be discharged into the sludge bin. The impurities and sludge in the sewage have poor fluidity. If the sludge outlet of the sewage separation bin is too small, it is easy to be blocked. Therefore, the upper part is configured to have a small opening and the lower part is configured to have a large opening, which can ensure both the discharge of clean water and the smooth sliding of impurities, sludge, etc.

[0008] Furthermore, the power device includes a power bin and a variable frequency motor, the power bin includes a first gear and at least two second gears meshing with each other, each second gear is matched with a set of the sewage separation device, and the main shaft of the sewage separation device passes through the end of the sewage bin and is key-connected with the second gear. Through the transmission effect of the first gear and the second gear, one variable frequency motor can drive multiple sewage separation devices, which is to achieve energy saving and emission reduction, and can effectively reduce the overall volume of the separator.

[0009] Furthermore, the number of second gears meshing with the first gear is six, and the six second gears are distributed around the first gear in a regular hexagon. The second gears are evenly distributed around the first gear to ensure that the overall structure remains stable during operation. One first gear meshes with multiple second gears, and the actual speed of the variable frequency motor is increased through the transmission ratio, which achieves energy saving and emission reduction, and can ensure that the sewage separation cylinder achieves high-speed centrifugal motion.

[0010] Furthermore, a sewage energy-reducing ring is fixedly mounted on the main shaft at the drainage outlet of the sewage tank and is used to prevent the main shaft from being affected by the centrifugal force of sewage; a sludge energy-reducing ring is fixedly arranged at the position of the sewage outlet in the sludge tank. The sewage energy-reducing ring is also called a sewage centripetal pump. The sewage energy-reducing ring can effectively prevent the high-pressure sewage from directly impacting the main shaft, and there will be centrifugal force in the process of sewage flowing downward. The sewage energy-reducing ring can effectively prevent the main shaft from being affected by the centrifugal force of sewage, that is, to prevent the main shaft from being unevenly stressed, causing the main shaft to be offset or damaged, thereby shortening its life. The several baffles of the sewage energy-reducing ring interact with the rotating sewage in the sewage tank, converting the liquid kinetic energy of the sewage into static pressure energy, so that the sewage can be smoothly discharged into the sewage separation cylinder; the sludge energy-reducing ring is also called a sludge centripetal pump. The function of the sludge energy-reducing ring is similar to that of the sewage energy-reducing ring, so that the sludge can be discharged from the sludge tank more smoothly.

[0011] Furthermore, the sewage energy-reducing ring and the sludge energy-reducing ring have the same structure, both of which include an annular top plate and an annular bottom plate arranged coaxially, and a number of baffles arranged vertically and evenly distributed in a radial shape are fixed between the annular top plate and the annular bottom plate, and the planes where the baffles are located all pass through the perpendicular midline of the annular top plate, and the annular bottom plate of the sewage energy-reducing ring is fixedly connected to the bottom of the sewage bin; the annular bottom plate of the sludge energy-reducing ring is fixedly connected to the bottom of the sludge bin; the main shaft is inserted into the inner ring of the annular top plate and the inner ring of the annular bottom plate of the sewage energy-reducing ring, and a gap is provided between the main shaft and the inner ring of the annular top plate and the inner ring of the annular bottom plate of the sewage energy-reducing ring. The inner ring of the annular top plate only needs to ensure that it does not rub against the rotating main shaft, and the annular bottom plate needs to ensure that the sewage can flow down smoothly, so the circular ring of the annular bottom plate must not only ensure that it does not rub against the rotating main shaft, but also ensure that its inner ring is large enough to ensure that the flow rate of sewage entering the sewage separation cylinder is greater than the flow rate of sewage at the water inlet of the sewage bin.

[0012] Furthermore, the outer side of the sewage energy reduction ring is sleeved with a sewage overflow cylinder section fixed to the bottom of the sewage bin and coaxial with the main shaft, and the height of the sewage overflow cylinder section is higher than the top plate of the sewage energy reduction ring and lower than the height of the sewage bin. The sewage energy reduction ring forms an annular sewage inlet on its circumference through a baffle, an annular top plate and an annular bottom plate. The sewage overflow cylinder section is to prevent sewage from directly flowing into the annular sewage inlet close to the sewage inlet after entering from the sewage inlet, and can further prevent the uneven sewage flow from causing the main shaft and the sewage separation cylinder rotating at high speed below to be biased, resulting in severe vibration of the sewage separation cylinder, which will cause the connection between the lower end of the sewage separation cylinder and the main shaft to rupture in severe cases, thereby shortening the service life of the separator; therefore, the sewage overflow cylinder section is set, and after the sewage enters the sewage bin, it first overflows to the sewage overflow cylinder section, and then flows down from the sewage overflow cylinder throttling and flows into the annular sewage inlet formed by the sewage energy reduction ring, effectively ensuring the uniformity of the water flow flowing into the sewage separation cylinder.

[0013] The beneficial effects of the present invention are: 1. The sewage treatment efficiency is high. The sewage is separated after passing through the sewage separation cylinder 10. The whole process is continuous and takes a short time. 2. The water quality after treatment is good. The suspended particles can be basically separated completely. The effluent quality is high and there are few suspended particles. 3. There is no secondary pollution. The sludge has a low moisture content. The sludge is easy to discharge and will not cause secondary pollution to the treated water body. 4. The investment cost of sewage treatment is greatly saved. After the ultra-gravity separator is put into operation, the subsequent expensive equipment investment for traditional sewage treatment can be saved. 5. Compared with traditional process equipment, it occupies a small area, has low investment and energy consumption, and has fewer equipment failures. BRIEF DESCRIPTION OF THE DRAWINGS

[0014] Figure 1 It is a structural schematic diagram of a super gravity sewage separator according to the present invention;

[0015] Figure 2 It is a partial enlarged structural schematic diagram of the sludge bin and the clean water bin of the present invention;

[0016] Figure 3 It is a structural schematic diagram of the sewage separation cylinder of the present invention;

[0017] Figure 4 It is a schematic diagram (cross section) of the matching structure of the sewage separation cylinder, blades and main shaft of the present invention;

[0018] Figure 5 It is a schematic diagram of the structure of the sewage energy reduction ring or the sludge energy reduction ring of the present invention;

[0019] Figure 6 It is a cross-sectional schematic diagram of the main axis inside the sewage separation cylinder of the present invention;

[0020] Figure 7 It is a partial enlarged structural schematic diagram of the sewage separation tank of the present invention.

[0021] In the figure: 1-power device; 2-sewage separation device; 3-main shaft; 4-sewage tank; 5-clean water tank; 6-sewage separation tank; 7-sludge tank; 8-drainage outlet; 9-water inlet; 10-sewage separation cylinder; 11-connecting sleeve; 12-sewage auxiliary impeller sealing device; 13-through hole; 14-blade; 15-sewage inlet; 16-clean water outlet; 17-sewage outlet; 18-power tank; 19-frequency conversion motor; 20-first gear ; 21-second gear; 22-electromagnetic clutch; 23-coupling; 24-sewage energy-scavenging ring; 25-sludge energy-scavenging ring; 261-annular top plate; 262-annular bottom plate; 27-annular sewage inlet; 28-sewage overflow cylinder section; 29-bearing seat; 30-first support bearing; 31-second support bearing; 32-first distance rod; 33-second distance rod; 34-third distance rod; 35-solenoid valve; 36-shock absorber. DETAILED DESCRIPTION

[0022] Reference Figures 1 to 7 , a super gravity sewage separator of the present invention is described in detail.

[0023] A super gravity sewage separator, such as Figure 1 As shown, it includes a power device 1 and a sewage separation device 2, the sewage separation device 2 includes a main shaft 3 and a sewage tank 4, a clean water tank 5, a sewage separation tank 6 and a sludge tank 7 which are arranged adjacent to each other from top to bottom, the power device 1 drives the main shaft 3 to rotate; a drain port 8 is provided at the bottom of the sewage tank 4; a water inlet 9 is provided at the bottom of the clean water tank 5, a sewage separation cylinder 10 is vertically arranged inside the sewage separation tank 6, the drain port 8 of the sewage tank 4 passes through the water inlet 9 of the clean water tank 5 through a connecting sleeve 11 and is rotatably connected to the top of the sewage separation cylinder 10, and the drain port 8 of the sewage tank 4 is connected to the The connecting sleeve 11 is fixedly connected; the side wall of the sewage separation tank 6 is conical and the upper opening is smaller than the lower opening; the water inlet 9 of the clean water tank 5 is sealed and connected to the upper opening of the side wall of the sewage separation tank 6; the main shaft 3 passes through and is supported in the sewage tank 4, the clean water tank 5 and the sewage separation tank 6 from top to bottom, and the main shaft 3 is inserted into the drain port 8 of the sewage tank 4, the connecting sleeve 11 and the sewage separation cylinder 10; the main shaft 3 drives the sewage separation cylinder 10; the main shaft 3 located at the top of the inner cavity of the sewage tank 4 is connected to a sewage auxiliary impeller sealing device 12 for sealing the sewage tank 4, as shown in FIG. Figure 2 As shown; the bottom of the sewage separation cylinder 10 is sealed with the main shaft 3 and its bottom is fixedly connected with the main shaft 3, as shown Figure 3 As shown, the side wall of the sewage separation cylinder 10 is provided with evenly distributed through holes 13. Figure 1 and Figure 4As shown, the side wall of the sewage separation cylinder 10 is evenly distributed in the radial direction in a radial manner in a radial manner; the sewage tank 4 is provided with a sewage inlet 15 connected to the outside, and the clean water tank 5 is provided with a clean water outlet 16 connected to the outside, the lower opening of the side wall of the sewage separation tank 6 is sealedly connected to the top of the sludge tank 7, and the bottom of the sludge tank 7 is provided with a sewage outlet 17.

[0024] On the premise that the sewage bin 4, the clean water bin 5 and the sewage separation bin 6 are arranged adjacent to each other, the drain outlet 8 of the sewage bin 4 passes through the water inlet 9 of the clean water bin 5 and is rotatably connected to the top of the sewage separation cylinder 10 through the connecting sleeve 11, then the connecting sleeve 11 directly connects the sewage bin 4 and the sewage separation cylinder 10, and the connecting sleeve 11 separates the sewage from the clean water bin 5, which can effectively prevent the sewage from entering the clean water bin 5 and prevent the clean water bin 5 from being polluted; the sewage separation cylinder 10 is driven by the main shaft 3 to rotate, but the connecting sleeve 11 does not rotate, so the connecting sleeve 11 is rotatably connected to the sewage separation cylinder 10; the sewage separation cylinder 10 rotates with the main shaft 3, and the rotation process is the supergravity cement separation process. During the centrifugal process, the sewage separation cylinder 10 performs centrifugal motion. During the centrifugal process, the sewage is thrown out from the through hole 13 on the sewage separation cylinder 10 at high pressure and then washed onto the blade 14 of the sewage separation cylinder 10. The blade 14 beats the sludge onto the side wall of the sewage separation tank 6. Due to the different weights of sludge and water, under the action of high-speed centrifugation, the clean water and sludge are separated, and the clean water overflows upward, and finally overflows from the upper opening of the sewage separation tank 6 to the clean water tank 5 and then discharged from the clean water outlet 16. The impurities, sludge, etc. in the sewage are thrown onto the side wall of the sewage separation tank 6 and slide down due to their own gravity and fall into the sludge tank 7. The sewage outlet 17 of the sludge tank 7 is connected to a sludge pump for pumping sludge when working, so the sludge is pumped by the sludge pump and smoothly discharged from the sludge tank 7. The sewage secondary impeller sealing device 12 can effectively prevent the sewage in the sewage tank 4 from flowing out of the sewage tank 4. The sewage separation bin 6 is configured to be conical in shape, which can help the clean water to be discharged upward along its inner wall, and the sludge to slide downward and be discharged into the sludge bin 7. The impurities and sludge in the sewage have poor fluidity. If the sludge outlet of the sewage separation bin 6 is too small, it is easy to be blocked. Therefore, the upper part is configured to have a small opening and the lower part is configured to have a large opening, which can ensure the discharge of clean water and the smooth sliding of impurities, sludge, etc.

[0025] Further, as a specific embodiment of the super gravity sewage separator described in the present invention, Figure 1As shown, the power device 1 includes a power bin 18 and a variable frequency motor 19, the power bin 18 includes a first gear 20 and at least two second gears 21 meshing with each other, each second gear 21 is matched with a set of the sewage separation device 2, the main shaft 3 of the sewage separation device 2 passes through the end of the sewage bin 4 and is key-connected with the second gear 21, in a specific embodiment, the variable frequency motor 19 is connected to the first gear 20 through an electromagnetic clutch 22 and a coupling 23, and the variable frequency motor 19 is located outside the power bin 18. Through the transmission effect of the first gear 20 and the second gear 21, one variable frequency motor 19 can drive multiple sewage separation devices 2, which is to achieve energy saving and emission reduction, and can effectively reduce the overall volume of the separator.

[0026] Furthermore, as a specific embodiment of a supergravity sewage separator described in the present invention, the number of second gears 21 meshing with the first gear 20 is six, and the six second gears 21 are distributed in a regular hexagon around the first gear 20. Evenly distributing the second gears 21 around the first gear can ensure that the overall structure remains stable during operation. In the specific implementation process, the transmission ratio of the first gear 20 and the second gear 21 ensures that the rotation speed of the main shaft 3 is twice or more than the rotation speed of the variable frequency motor 19. Through the transmission ratio coordination of the first gear 20 and the second gear 21, not only can one first gear 20 be meshed with multiple second gears 21, but also the rotation speed of the variable frequency motor 19 can be increased, which realizes energy saving and emission reduction, and can ensure that the sewage separation cylinder 10 achieves high-speed centrifugal motion.

[0027] Further, as a specific embodiment of the super gravity sewage separator described in the present invention, Figure 1 and Figure 3 As shown, a sewage energy-reducing ring 24 is fixed at the drain port 8 of the sewage tank 4 and is sleeved on the main shaft 3 to prevent the main shaft 3 from being affected by the centrifugal force of the sewage; Figure 1 As shown, a sludge energy-reducing ring 25 is fixedly arranged at the position of the sewage outlet 17 in the sludge bin 7. The sewage energy-reducing ring 24 is also called a sewage centripetal pump. The sewage energy-reducing ring 24 can effectively prevent the high-pressure sewage from directly impacting the main shaft 3. In addition, there will be centrifugal force in the process of sewage flowing downward. The sewage energy-reducing ring 24 can effectively prevent the main shaft 3 from being affected by the centrifugal force of sewage, that is, to prevent the main shaft 3 from being unevenly stressed, causing the main shaft 3 to be offset or damaged, thereby shortening the service life. Several baffles of the sewage energy-reducing ring 24 interact with the sewage rotating in the sewage bin 4, converting the liquid kinetic energy of the sewage into static pressure energy, so that the sewage can be smoothly discharged into the sewage separation cylinder 10; the sludge energy-reducing ring 25 is also called a sludge centripetal pump. The function of the sludge energy-reducing ring 25 is similar to that of the sewage energy-reducing ring 24, so that the sludge can be discharged from the sludge bin 7 more smoothly.

[0028] Further, as a specific embodiment of the super gravity sewage separator described in the present invention, the sewage energy reduction ring 24 and the sludge energy reduction ring 25 have the same structure and both include an annular top plate 261 and an annular bottom plate 262 arranged coaxially, as shown in FIG. Figure 5 As shown, a plurality of baffles are fixed between the annular top plate 261 and the annular bottom plate 262 and are vertically arranged and evenly distributed in a radial shape. The planes where the baffles are located all pass through the perpendicular midline of the annular top plate 261. Figure 1 As shown, the annular bottom plate 262 of the sewage energy reduction ring 24 is fixedly connected to the bottom of the sewage bin 4; the annular bottom plate 262 of the sludge energy reduction ring 25 is fixedly connected to the bottom of the sludge bin 7; Figure 1 and Figure 2 As shown, the main shaft 3 is inserted into the inner ring of the annular top plate 261 and the inner ring of the annular bottom plate 262 of the sewage energy-reducing ring 24, and a gap is provided between the main shaft 3 and the inner ring of the annular top plate 261 and the inner ring of the annular bottom plate 262 of the sewage energy-reducing ring 24. The inner ring of the annular top plate 261 only needs to ensure that it does not rub against the rotating main shaft 3, and the annular bottom plate 262 needs to ensure that the sewage can flow down smoothly, so the circular ring of the annular bottom plate 262 must not only ensure that it does not rub against the rotating main shaft 3, but also ensure that its inner ring is large enough to ensure that the flow rate of sewage entering the sewage separation cylinder 10 is greater than the flow rate of sewage at the water inlet 9 of the sewage tank 4. In a specific implementation, twelve baffles are provided in the sewage energy-reducing ring 24, and eight baffles are provided in the sludge energy-reducing ring 25.

[0029] Further, as a specific embodiment of the super gravity sewage separator described in the present invention, Figure 2 As shown, the sewage energy cutting ring 24 is sleeved with a sewage overflow cylinder section 28 fixed to the bottom of the sewage tank 4 and coaxial with the main shaft 3 on the outside. The height of the sewage overflow cylinder section 28 is higher than the top plate of the sewage energy cutting ring 24 and lower than the height of the sewage tank 4. The sewage energy-reducing ring 24 forms an annular sewage inlet 27 on its circumference through a baffle, an annular top plate 261 and an annular bottom plate 262. The sewage overflow cylinder section 28 is to prevent the sewage from directly flowing into the annular sewage inlet 27 near the sewage inlet 15 after entering from the sewage inlet 15, and can further prevent the uneven sewage flow from causing the main shaft 3 and one side of the sewage separation cylinder 10 rotating at a high speed below to be subjected to eccentric force, thereby causing the sewage separation cylinder 10 to vibrate violently. In severe cases, it will cause the connection between the lower end of the sewage separation cylinder 10 and the main shaft 3 to rupture, thereby shortening the service life of the separator; therefore, the sewage overflow cylinder section 28 is provided, and after the sewage enters the sewage tank 4, it first overflows to the sewage overflow cylinder section 28, and then flows down from the sewage overflow cylinder section 28 and flows into the annular sewage inlet 27 formed by the sewage energy-reducing ring 24, effectively ensuring the uniformity of the water flow flowing into the sewage separation cylinder 10.

[0030] Further, as a specific embodiment of the super gravity sewage separator described in the present invention, Figure 6 As shown, the main shaft 3 located inside the sewage separation cylinder 10 is longitudinally provided with grooves equal to the number of blades 14, and the blades 14 pass through the side wall of the sewage separation cylinder 10 and match with the grooves on the main shaft 3 one by one. Figure 4 As shown, the blades 14 are welded to the sewage separation cylinder 10 and the main shaft 3. The inside of the sewage separation cylinder 10 is divided into several small spaces by the blades 14 inserted therein. Such arrangement of the blades 14 can increase the dynamic balance between the main shaft 3, the sewage separation cylinder 10 and the blades 14, making the entire sewage separation device more stable. Figure 4 As shown, twelve blades 14 are arranged outside the sewage separation cylinder 10 .

[0031] Further, as a specific embodiment of the super gravity sewage separator described in the present invention, Figure 1 As shown, the upper and lower ends of the main shaft 3 are supported by a bearing seat 29 , and the bearing seat 29 at the lower end of the main shaft 3 is supported on the annular top plate 261 of the sludge energy cutting ring 25 .

[0032] Further, as a specific embodiment of the super gravity sewage separator described in the present invention, Figure 1 and Figure 2 As shown, a first support bearing 30 is provided on the main shaft 3 located inside the connecting sleeve 11. Figure 1 and Figure 7 As shown, a second support bearing 31 is provided on the main shaft 3 located below the mud-water separation cylinder, a first distance rod 32 passing through the connecting sleeve 11 and connected to the side wall of the sewage separation chamber 6 is fixed on the first support bearing 30, a second distance rod 33 connected to the side wall of the sewage separation chamber 6 is fixed on the second support bearing 31; a third distance rod 34 is fixed between the connecting sleeve 11 and the side wall of the sewage separation chamber 6. The first support bearing 30, the second support bearing 31, the first distance rod 32, the second distance rod 33 and the third distance rod 34 are provided to increase the stability of the main shaft 3, the connecting sleeve 11 and the overall structure. In the specific implementation, several positioning rods are supported between the upper and lower arms of the sewage chamber 4, which is to facilitate subsequent disassembly and maintenance work.

[0033] Further, as a specific embodiment of the super gravity sewage separator described in the present invention, Figure 1 and Figure 7As shown, a shock absorbing device 36 is provided on the outside of the side wall of the sewage separation tank 6. The shock absorbing device 36 can effectively reduce the vibration of the side wall of the sewage separation tank 6 and enhance the stability of the overall structure. All bearings used in the power device 1 and the sewage separation device 2 are ceramic ball bearings; sound insulation cotton layers are provided on the outer walls of the power device 1 and the sewage separation device 2. The ceramic ball bearings are suitable for stable operation in water, are lubrication-free and have high speed. By providing a sound insulation cotton layer on the outer walls of the power device 1 and the sewage separation device 2, the machine noise can be controlled within 85 decibels.

[0034] In specific implementation, Figure 1 As shown, the sewage inlet 15, the clean water outlet 16 and the sewage outlet 17 are all provided with electromagnetic valves 35. By controlling the electromagnetic valves 35, the sewage, clean water and sludge can be discharged at regular times and locations.

[0035] When the ultra-gravity sewage separator of the present invention is in use, the sewage outlet 17 of the external sewage pump is first connected to the sewage inlet 15 of the sewage tank 4 of the present invention through a flange, and the clean water outlet 16 of the clean water tank 5 is connected to the external pipeline through a flange. The sewage outlet 17 is arranged above the belt of the belt conveyor. The start and stop of the sewage pump and the separator of the present invention are controlled by sequential logic. The separator is started first, and then the sewage pump is started. The sewage pump pumps the sewage into the sewage tank 4 through the sewage inlet 15. The sewage first overflows the sewage overflow cylinder section 28 and then passes through the sewage energy reduction ring 24 and then flows smoothly from the drain port 8 to the sewage separation cylinder 10 in the sewage separation tank 6. The sewage separation cylinder 10 is on the main shaft 3 Driven by the high-speed operation, the high-speed centrifugal motion is performed, and the sewage is separated into clean water and sludge under the separation effect of the sewage separation cylinder 10. The clean water overflows upward along the side wall of the sewage separation bin 6 and is discharged into the clean water bin 5 through the water inlet 9, and is finally discharged from the clean water outlet 16 to the external pipeline. The impurities, sludge, etc. in the sewage are thrown onto the inner wall of the sewage separation bin 6 by the blades 14 under the action of super gravity, and finally slide into the sludge bin 7 due to the action of gravity. The sludge in the sludge bin 7 is pumped out by the sludge pump outside the sewage outlet 17 through the sludge energy reduction ring 25, and finally the sludge discharge amount, sewage discharge time interval and sludge discharge speed are controlled by the electromagnetic valve 35 at the sewage outlet 17. Finally, the sludge and impurities are taken away by the belt conveyor.

[0036] The above specific structures and dimensional data are specific descriptions of the preferred embodiments of the present invention, but the invention is not limited to the embodiments. Those skilled in the art can make various equivalent deformations or substitutions without violating the spirit of the present invention. These equivalent deformations or substitutions are all included in the scope defined by the claims of this application.

Claims

1. A super gravity sewage separator, characterized in that: The invention comprises a power device (1) and a sewage separation device (2), wherein the sewage separation device (2) comprises a main shaft (3) and a sewage tank (4), a clean water tank (5), a sewage separation tank (6) and a sludge tank (7) which are arranged adjacent to each other in sequence from top to bottom, wherein the power device (1) drives the main shaft (3) to rotate; a drainage port (8) is provided at the bottom of the sewage tank (4); a water inlet (9) is provided at the bottom of the clean water tank (5); a sewage separation cylinder (10) is vertically arranged inside the sewage separation tank (6); the drainage port (8) of the sewage tank (4) passes through the water inlet (9) of the clean water tank (5) through a connecting sleeve (11) and is rotatably connected to the top of the sewage separation cylinder (10); the drainage port (8) of the sewage tank (4) is connected to the connecting sleeve (11) is fixedly connected; the side wall of the sewage separation chamber (6) is conical and the upper opening is smaller than the lower opening; the water inlet (9) of the clean water chamber (5) is sealed and connected to the upper opening of the side wall of the sewage separation chamber (6); the main shaft (3) passes through and is supported in the sewage chamber (4), the clean water chamber (5) and the sewage separation chamber (6); the main shaft (3) is inserted into the drainage port (8) of the sewage chamber (4), the connecting sleeve (11) and the sewage separation cylinder (10); the main shaft (3) drives the sewage separation cylinder (10); the main shaft (3) is connected to a sewage auxiliary impeller sealing device (12) for sealing the sewage chamber (4) at a position located at the top of the inner cavity of the sewage chamber (4); the bottom of the sewage separation cylinder (10) is connected to the The main shaft (3) is sealed and its bottom is fixedly connected to the main shaft (3); the side wall of the sewage separation cylinder (10) is provided with evenly distributed through holes (13); the outer wall of the sewage separation cylinder (10) is provided with a plurality of blades (14) distributed in a radial manner along the circumferential direction; the sewage tank (4) is provided with a sewage inlet (15) communicating with the outside; the clean water tank (5) is provided with a clean water outlet (16) communicating with the outside; the lower opening of the side wall of the sewage separation tank (6) is sealedly connected to the top of the sludge tank (7); the bottom of the sludge tank (7) is provided with a sewage outlet (17); the power device (1) comprises a power tank (18) and a variable frequency motor (19); the power tank (18) comprises a first gear (20) and a gear (21) meshing with each other; At least two second gears (21), each second gear (21) is matched with a set of the sewage separation device (2), and the end of the main shaft (3) of the sewage separation device (2) passing through the sewage bin (4) is key-connected to the second gear (21); a sewage energy-reducing ring (24) sleeved on the main shaft (3) and used to prevent the main shaft (3) from being affected by the centrifugal force of sewage is fixed at the drainage port (8) of the sewage bin (4); a sludge energy-reducing ring (25) is fixedly arranged at the position of the sewage drainage port (17) in the sludge bin (7); the variable frequency motor (19) is connected to the first gear (20) via an electromagnetic clutch (22) and a coupling (23), and the variable frequency motor (19) is located outside the power bin (18).

2. The super gravity sewage separator according to claim 1, characterized in that: The number of second gears (21) meshing with the first gear (20) is six, and the six second gears (21) are distributed around the first gear (20) in a regular hexagon.

3. The super gravity sewage separator according to claim 2, characterized in that: The sewage energy reduction ring (24) and the sludge energy reduction ring (25) have the same structure and both include an annular top plate (261) and an annular bottom plate (262) arranged coaxially. A plurality of baffles arranged vertically and evenly distributed in a radial shape are fixed between the annular top plate (261) and the annular bottom plate (262). The planes on which the baffles are located all pass through the mid-perpendicular line of the annular top plate (261). The annular bottom plate (262) of the sewage energy reduction ring (24) and the sewage energy reduction ring (25) are parallel to each other. The bottom of the sludge bin (4) is fixedly connected; the annular bottom plate (262) of the sludge energy-removing ring (25) is fixedly connected to the bottom of the sludge bin (7); the main shaft (3) is inserted into the inner ring of the annular top plate (261) and the inner ring of the annular bottom plate (262) of the sewage energy-removing ring (24), and a gap is provided between the main shaft (3) and the inner ring of the annular top plate (261) and the inner ring of the annular bottom plate (262) of the sewage energy-removing ring (24).

4. The super gravity sewage separator according to claim 3, characterized in that: The sewage energy reduction ring (24) is sleeved on the outside with a sewage overflow barrel section (28) fixed to the bottom of the sewage bin (4) and coaxial with the main shaft (3); the height of the sewage overflow barrel section (28) is higher than the top plate of the sewage energy reduction ring (24) and lower than the height of the sewage bin (4).

5. The super gravity sewage separator according to claim 4, characterized in that: The main shaft (3) located inside the sewage separation cylinder (10) is provided with grooves in the longitudinal direction, the number of which is equal to the number of blades (14); the blades (14) pass through the side wall of the sewage separation cylinder (10) and are matched with the grooves on the main shaft (3) in a one-to-one correspondence; the blades (14) are welded to the sewage separation cylinder (10) and the main shaft (3).

6. The super gravity sewage separator according to claim 5, characterized in that: The upper and lower ends of the main shaft (3) are supported by a bearing seat (29), and the bearing seat (29) at the lower end of the main shaft (3) is supported on the annular top plate (261) of the sludge energy cutting ring (25).

7. The super gravity sewage separator according to claim 6, characterized in that: A first support bearing (30) is provided on the main shaft (3) located inside the connecting sleeve (11), and a second support bearing (31) is provided on the main shaft (3) located below the sewage separation tank (10); a first distance rod (32) passing through the connecting sleeve (11) and connected to the side wall of the sewage separation tank (6) is fixed to the first support bearing (30); a second distance rod (33) connected to the side wall of the sewage separation tank (6) is fixed to the second support bearing (31); and a third distance rod (34) is fixed between the connecting sleeve (11) and the side wall of the sewage separation tank (6).

8. The super gravity sewage separator according to claim 7, characterized in that: A shock absorbing device (36) is arranged outside the side wall of the sewage separation tank (6); all bearings used by the power device (1) and the sewage separation device (2) are ceramic ball bearings; and a sound insulation cotton layer is arranged on the outer wall of the power device (1) and the sewage separation device (2).

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