Aeration separation mechanism for self-collection type sewage treatment

Abstract

The utility model relates to sewage treatment technical field, and including aeration tank is provided with collection subassembly and oxygenation subassembly on the inner wall and lower inner wall respectively, and oxygenation subassembly is linked with outside air blower, and aeration tank outer wall is evenly distributed with a plurality of transfer subassembly with its inner chamber intercommunication along the circumference, and aeration tank outer wall is fixedly provided with adding valve and exhaust valve with its inner chamber intercommunication between collection subassembly and oxygenation subassembly, and aeration tank bottom is fixedly provided with drainage valve with its inner chamber intercommunication, and collection subassembly includes the material collecting cylinder rotationally connected on the inner wall of aeration tank, and the top of material collecting cylinder is open, and the bottom of material collecting cylinder is circular truncated cone structure, the utility model solves the problem that the existing sewage treatment with aeration separation equipment active sludge's distribution uniformity is poor, and active sludge's action area to sewage is small, and the recovery and utilization process of active sludge is complicated, and the oxygen content in sewage is uneven.

Description

TECHNICAL FIELD

[0001] The present application relates to the technical field of sewage treatment, in particular to a self-collection type aeration separation mechanism for sewage treatment. BACKGROUND

[0002] Sewage treatment is a process of purifying sewage to meet the water quality requirements for discharge into a certain water body or reuse. Sewage treatment is widely used in various fields such as construction, agriculture, transportation, energy, petrochemical, environmental protection, urban landscape, medical treatment, catering and daily life of ordinary people. The methods of sewage treatment mainly include physical method, chemical method and biological method. Among them, the activated sludge method and its derivative improved process in biological method are the most widely used method for treating sewage. The activated sludge method is a wastewater biological treatment method with activated sludge as the main body. This technology mixes wastewater with activated sludge and aerates, uses the biological coagulation, adsorption and oxidation of activated sludge to decompose and remove organic pollutants in wastewater, and then separates activated sludge from water and returns to the equipment for repeated use.

[0003] The existing aeration separation equipment for sewage treatment gradually exposes the deficiencies in the process of use, mainly in the following aspects:

[0004] First, the uniformity of the distribution of activated sludge is poor. Specifically, during the process of activated sludge purifying sewage, small particles of activated sludge will aggregate to form larger clusters. Therefore, the activated sludge in the sewage appears as flocculent particles, also known as flocculation body. The activated sludge flocculation body will appear flocculation and sedimentation in the sewage. During the process of purifying sewage, the amount of activated sludge below the equipment is much larger than that above the equipment, so the distribution of activated sludge in the equipment is uneven, which affects the purification effect and efficiency of the sewage.

[0005] Second, the action area of activated sludge on sewage is small. Specifically, small particles of activated sludge in the sewage will continuously aggregate to form larger clusters. After the aggregation of activated sludge particles, the contact area of the whole activated sludge particles with the sewage becomes smaller, and the action area of activated sludge particles on the sewage becomes smaller. Therefore, the larger the volume of activated sludge flocculation body, the smaller the contact area of the whole activated sludge with the sewage, and the smaller the action area of activated sludge on the sewage, which further affects the purification speed of the sewage.

[0006] Third, the recycling process of activated sludge is complicated. Specifically, activated sludge can be reused. After the sewage is purified, the activated sludge and the sewage in the aeration equipment need to be discharged to the sedimentation equipment for sedimentation. After sedimentation, the activated sludge is separated from the sewage, and then the separated activated sludge is collected and added to the aeration equipment for use. During the continuous purification of the sewage, the activated sludge needs to be separated and transferred back and forth, so the recycling process of activated sludge is complicated.

[0007] Fourth, the oxygen content in sewage is uneven, specifically, the oxygen increasing assembly of the existing aeration equipment is installed at the bottom, the oxygen increasing assembly continuously sends air into the sewage in the equipment, the air entering the sewage forms small bubbles and moves upward, the bubbles provide the required oxygen for the oxidation of organic pollutants by the activated sludge during the upward movement, and the internal oxygen of the bubbles is gradually consumed during the upward movement, so that the internal oxygen content of the bubbles is low when the bubbles move to the upper area of the sewage, and the oxygen increasing of the sewage in the upper area is insufficient, resulting in uneven oxygen content in the sewage, affecting the oxidation effect of the activated sludge on the organic pollutants.

[0008] From the above, it is obvious that the prior art has inconvenience and defects in actual use, so it is necessary to improve. SUMMARY

[0009] In view of the defects in the prior art, the technical problem to be solved by the present application is to provide a self-collection type aeration separation mechanism for sewage treatment, which can collect the activated sludge deposited at the bottom and uniformly add it to the upper area of the sewage, so that the activated sludge in the equipment vertically circulates in the sewage, realizing the function of uniform distribution of activated sludge in the sewage, and improving the purification effect and efficiency of the sewage;

[0010] The device can also crush the activated sludge to prevent the activated sludge from gathering to form large-volume flocculation bodies, increase the contact area of the activated sludge and the sewage, and thus increase the action area of the activated sludge on the sewage, thereby speeding up the purification speed of the sewage;

[0011] The device can also separate the sewage and the activated sludge without transferring the sewage and the activated sludge, realizing the function of self-collection of the activated sludge, and simplifying the recycling process of the activated sludge;

[0012] The device can also uniformly increase the oxygen content in the sewage, improve the oxygen content and uniformity of the sewage, so that the oxygen in the sewage is sufficient and uniform, and the oxidation effect of the activated sludge on the organic pollutants is improved.

[0013] To solve the above problems, the present application provides the following technical scheme:

[0014] The self-collection type aeration separation mechanism for sewage treatment comprises an aeration tank, a collection assembly and an oxygen increasing assembly are respectively arranged on the inner wall and the lower inner wall of the aeration tank, the oxygen increasing assembly is in communication with an external air blower, a plurality of transfer assemblies in communication with the inner cavity of the aeration tank are uniformly distributed on the outer wall of the aeration tank in the circumferential direction, an adding valve and an exhaust valve in communication with the inner cavity of the aeration tank are fixedly arranged on the outer wall of the aeration tank between the collection assembly and the oxygen increasing assembly, and a drainage valve in communication with the inner cavity of the aeration tank is fixedly arranged at the bottom of the aeration tank.

[0015] As an optimized scheme, the collecting assembly comprises a collecting cylinder rotationally connected to the inner wall of the aeration tank, the top of the collecting cylinder is provided with an opening, the bottom of the collecting cylinder is in a circular truncated cone structure, a support plate is coaxially fixed to the position below the collecting cylinder on the inner wall of the aeration tank, the top of the support plate is arranged in a shape following the bottom of the collecting cylinder and abuts against the bottom of the collecting cylinder in friction, a collecting hopper is fixed to the bottom of the support plate, a discharging hopper is coaxially fixed to the position below the collecting hopper on the inner wall of the aeration tank, the upper end of the discharging hopper is fixedly and communicatively arranged with the lower end of the collecting hopper, two vertical through material grooves are uniformly distributed along the circumference of the inner bottom of the collecting cylinder, two mud discharge holes, two separation holes and two material passing holes are uniformly distributed along the circumference of the position of the bottom of the support plate in the collecting hopper, the mud discharge holes, the separation holes and the material passing holes are alternately arranged along the circumference and vertically penetrate the support plate, the diameters of the mud discharge holes, the separation holes and the material passing holes are the same as the diameter of the material grooves, a filter plate is coaxially fixed to the inner wall of the separation hole, the top surface of the filter plate is flush with the top surface of the support plate, two mud discharge hoppers are fixed to the position of the bottom of the support plate in the collecting hopper, the two mud discharge hoppers are correspondingly communicated with the two mud discharge holes, a mud discharge pipe is fixedly arranged at the lower end of the mud discharge hopper, one end of the mud discharge pipe extends to the outside through the collecting hopper and the aeration tank in an obliquely downward direction, a rotating pipe is coaxially arranged on the top of the support plate and rotationally arranged, the upper end of the rotating pipe penetrates the collecting cylinder in an upward direction and is rotationally connected to the inner top of the aeration tank, the rotating pipe is rotationally connected to the collecting cylinder, a plurality of scraper plates are uniformly distributed along the circumference of the outer wall of the rotating pipe at the position of the outer wall of the rotating pipe in the collecting cylinder and frictionally contact the inner wall of the collecting cylinder, a rotating column is coaxially arranged in the rotating pipe and rotationally connected to the inner wall of the rotating pipe, the bottom end of the rotating column extends to the discharging hopper through the support plate and the collecting hopper in a downward direction, a plurality of dispersion plates are uniformly distributed along the circumference of the outer wall of the rotating column at the position of the outer wall of the rotating column in the discharging hopper, one end of the dispersion plate is arranged in an obliquely downward direction.

[0016] As an optimized scheme, the inner bottom of the aeration tank is coaxially fixed with a fixed conical plate, the tip of the fixed conical plate is arranged in an upward direction, the upper end of the drain valve penetrates the fixed conical plate in an upward direction and is flush with the top surface of the fixed conical plate, the inner bottom of the aeration tank is coaxially provided with a rotationally arranged transmission rod, the top end of the transmission rod penetrates the fixed conical plate in an upward direction and is rotationally and sealingly connected to the fixed conical plate, a plurality of material pushing plates are uniformly distributed along the circumference of the outer wall of the transmission rod at the position of the outer wall of the transmission rod above the fixed conical plate and frictionally contact the top surface of the fixed conical plate;

[0017] The transfer assembly comprises a vertically fixed feeding cylinder, a screw conveyor coaxially arranged in the feeding cylinder, two ends of the screw conveyor are rotationally connected with the inner top and inner bottom of the feeding cylinder, the upper outer wall and the lower outer wall of the feeding cylinder are respectively provided with a discharge pipe and a feeding pipe which are in communication with the inner cavity of the feeding cylinder, one of the ports of the feeding pipe extends to the aeration tank in an obliquely upward direction and is flush with the inner wall of the aeration tank, the port of the feeding pipe is located above the fixed conical plate, the top of the aeration tank is fixedly provided with a vertically arranged crushing cylinder, the bottom of the crushing cylinder penetrates the aeration tank downward and extends into the collecting cylinder, one of the ports of the discharge pipe is in communication with the inner cavity of the crushing cylinder, the inner bottom of the crushing cylinder is provided with a plurality of vertically penetrating through holes, the inner top of the crushing cylinder is coaxially provided with a rotationally arranged driving shaft, and the outer wall of the driving shaft is uniformly distributed with a plurality of crushing knives in the circumferential direction.

[0018] As an optimized scheme, the oxygen increasing assembly comprises two lifting cylinders which are coaxial with the aeration tank and arranged in an up-down arrangement, the lifting cylinders are vertically and slidingly and sealingly connected with the inner wall of the aeration tank, the inner wall of the lifting cylinder is coaxially fixedly connected with a fixed circular plate, the top of the fixed circular plate is uniformly distributed with a plurality of vertically penetrating through holes in the circumferential direction, the upper port and the lower port of the rotating pipe extend to the outside of the lifting cylinder and are flush with the top and the bottom of the lifting cylinder respectively, the fixed circular plate and the lifting cylinder are rotationally and sealingly connected with the rotating pipe, a plurality of rotating pipes are synchronously rotationally arranged, the inner wall of the rotating pipe is uniformly distributed with two aeration discs which are in communication with the lower inner cavity of the lifting cylinder in the circumferential direction at the position below the fixed circular plate, the inner wall of the rotating pipe is uniformly distributed with a plurality of segmentation knives in the circumferential direction at the position above the aeration disc, the inner bottom of the lower lifting cylinder is coaxially provided with a rotationally arranged transmission shaft, the top end of the transmission shaft penetrates the two lifting cylinders and the two fixed circular plates upward and extends to the outside, the lifting cylinder and the fixed circular plate are rotationally and sealingly connected with the transmission shaft, a plurality of stirring blades are uniformly distributed in the circumferential direction at the position above the lifting cylinder on the outer wall of the transmission shaft, the top of the fixed circular plate is uniformly distributed with a plurality of communication pipes which are in communication with the lower inner cavity of the lifting cylinder in the circumferential direction, the communication pipes extend to the outside upward through the lifting cylinder, the upper port of the lower communication pipe is in communication with the lower inner cavity of the upper lifting cylinder, the top of the discharge hopper is uniformly distributed with a plurality of vertically penetrating through holes in the circumferential direction, the upper port of the upper communication pipe extends to the air inlet pipe upward and is vertically and slidingly and sealingly connected with the air inlet pipe, and the upper port of the air inlet pipe penetrates the aeration tank and extends to the outside and is in communication with the air blower.

[0019] As an optimized scheme, the collecting cylinder is coaxially fixedly connected with a fixed tooth ring, the top of the aeration tank is fixedly provided with a control motor, the output end of the control motor extends into the collecting cylinder through the aeration tank and is fixedly connected with a control gear which is engaged with the fixed tooth ring.

[0020] As an optimized scheme, the top of the aeration tank is fixedly provided with two driving motors, one output end of the driving motor extends into the rotating pipe through the aeration tank and is fixedly connected with the rotating column, a driven gear is fixedly sleeved on the outer wall of the rotating pipe, and the output end of the other driving motor extends through the aeration tank and is fixedly connected with a driving gear engaged with the driven gear.

[0021] As an optimized scheme, the bottom of the aeration tank is fixedly provided with a lower servo motor, and the output end of the lower servo motor extends through the aeration tank and is fixedly connected with the transmission rod.

[0022] As an optimized scheme, the bottom of the feeding cylinder is fixedly provided with a stepping motor, and the output end of the stepping motor extends through the feeding cylinder and is fixedly connected with the auger.

[0023] The top of the crushing cylinder is fixedly provided with an upper servo motor, and the output end of the upper servo motor extends through the crushing cylinder and is fixedly connected with the driving shaft.

[0024] As an optimized scheme, the top of the discharging hopper is circumferentially and uniformly provided with two vertically penetrating support cylinders, the bottom of the support cylinder is vertically and slidingly provided with a lifting column, the lifting column is fixedly connected with a lifting cylinder located above, the inner top of the support cylinder is fixedly provided with a vertically arranged lifting telescopic cylinder, and the telescopic end of the lifting telescopic cylinder is fixedly connected with the lifting column.

[0025] As an optimized scheme, the outer wall of the transmission shaft is fixedly sleeved with a driving gear at a position in the inner cavity of the lifting cylinder, the outer wall of the rotating pipe is fixedly sleeved with a driven gear engaged with the driving gear at a position in the inner cavity of the lifting cylinder, the bottom of the lifting cylinder located below is fixedly provided with a protective cylinder with an open top, the protective cylinder is fixedly provided with an internal motor, and the output end of the internal motor extends upward through the lifting cylinder and is fixedly connected with the transmission shaft.

[0026] Compared with the prior art, the present application has the following beneficial effects:

[0027] 1. In the process of purifying sewage in the aeration tank, the control motor drives the control gear, the fixed gear ring and the collecting cylinder to rotate until the collecting cylinder rotates to the material slot and the material hole completely overlap, the stepper motor drives the auger to rotate, the sewage at the bottom of the aeration tank and the sinking activated sludge enter the upper cylinder through the feeding pipe, the rotating auger transports the sewage and activated sludge upwards and enters the crushing cylinder through the discharge pipe, the upper servo motor drives the drive shaft and the crushing knife to rotate, the rotating crushing knife crushes the activated sludge in the crushing cylinder to become small volume activated sludge, the sewage and the crushed activated sludge in the crushing cylinder fall into the collecting cylinder through the through hole, one of the drive motors drives the drive gear, the driven gear, the rotating pipe and the scraper to rotate, the rotating scraper scrapes the activated sludge and sewage in the collecting cylinder, the sewage and activated sludge in the collecting cylinder enter the collecting hopper through the material slot and the material hole and flow downward, then the sewage and activated sludge downwardly pass through the discharge hopper and fall downward, at the same time, the other drive motor drives the rotating column and the dispersion plate to rotate, the rotating dispersion plate disperses the downwardly falling sewage and activated sludge, the dispersed activated sludge falls uniformly into the sewage in the aeration tank, in the process of upwardly transporting the sewage and activated sludge at the bottom of the aeration tank, the lower servo motor drives the transmission rod and the stirring plate to rotate slowly, the rotating stirring plate can push the activated sludge deposited at the top corner of the fixed conical plate, so that the activated sludge can enter the upper cylinder through the feeding pipe, the device can collect the activated sludge deposited at the bottom of the aeration tank and uniformly add it to the upper area of the sewage, so that the activated sludge in the device vertically circulates in the sewage, realizing the function of uniform distribution of activated sludge in the sewage, improving the purification effect and efficiency of the sewage;

[0028] 2. When oxygen is added to the sewage in the aeration tank, the air blower compresses the external air and sends it to the air inlet pipe, the compressed air in the air inlet pipe enters the lower inner cavity of the two lifting cylinders through the communication pipe, the compressed air in the lower inner cavity of the lifting cylinder is discharged through the aeration disc on the rotating pipe, thereby oxygenating the sewage in the rotating pipe, at the same time, the lifting telescopic cylinder drives the lifting column and the lifting cylinder to vertically reciprocate, in the process of vertical reciprocation, the sewage in the aeration tank reciprocates through the rotating pipe, the aeration disc continuously oxygenates the sewage passing through the rotating pipe, the oxygenation method of the present application can uniformly oxygenate the sewage, improve the oxygen content and uniformity of the oxygen content in the sewage, so that the oxygen in the sewage is sufficient and uniform, and the oxidation effect of the activated sludge on organic pollutants is improved;

[0029] 3. After the wastewater in the aeration tank is purified, the control motor drives the collection cylinder to rotate until the feed trough and separation hole are completely overlapped. The auger continuously transports the wastewater and activated sludge from the aeration tank into the collection cylinder. The activated sludge in the collection cylinder is trapped by the filter plate, while the wastewater in the collection cylinder passes through the filter plate and flows back into the aeration tank until all the activated sludge in the aeration tank is collected into the collection cylinder. The purified wastewater in the aeration tank is discharged through the drain valve, and the wastewater to be purified is added to the aeration tank through the addition valve. After the wastewater is added, the control motor drives the collection cylinder to rotate until the feed trough and feed hole are completely overlapped. The activated sludge in the collection cylinder flows downward through the feed trough and feed hole and... The wastewater is introduced into the aeration tank for purification. Similarly, when replacing the activated sludge in the aeration tank, the activated sludge is collected into the collection cylinder. The motor drives the collection cylinder to rotate until the feed trough and the sludge discharge hole are completely overlapped. The activated sludge in the collection cylinder enters the sludge discharge hopper through the feed trough and the sludge discharge hole and is discharged to the outside of the equipment through the sludge discharge pipe. Activated sludge is added back into the aeration tank through the addition valve. This equipment can separate wastewater and activated sludge without transferring the wastewater and activated sludge, realizing the function of self-collection of activated sludge, simplifying the recycling and replacement process of activated sludge, and improving the practicality of the equipment.

[0030] 4. During the vertical conveying of activated sludge, the rotating crushing blades break down the activated sludge passing through the crushing cylinder. The broken activated sludge falls into the collection cylinder through the through holes and flows downward into the sewage. During the aeration of the sewage, the built-in motor drives the drive shaft, drive gear, driven gear and rotating tube to rotate, which in turn drives the dividing blade and aeration disc to rotate. As the lifting and telescopic cylinder drives the lifting cylinder to move vertically back and forth, the rotating dividing blades break down the activated sludge passing through the rotating tube. By breaking down the activated sludge with the crushing blades and dividing blades, it is possible to prevent the activated sludge from agglomerating and forming large-volume flocs, thereby increasing the contact area between the activated sludge and the sewage, and thus increasing the area of ​​action of the activated sludge on the sewage, thereby accelerating the purification speed of the sewage.

[0031] 5. The built-in motor drives the transmission shaft to rotate, which in turn drives the stirring blades to rotate. The rotating stirring blades can make the sewage, activated sludge and air in the aeration tank more evenly mixed, further improving the purification effect and efficiency of sewage. Attached Figure Description

[0032] To more clearly illustrate the specific embodiments of the present invention or the technical solutions in the prior art, the accompanying drawings used in the description of the specific embodiments or the prior art will be briefly introduced below. In all the drawings, similar elements or parts are generally identified by similar reference numerals. In the drawings, the elements or parts are not necessarily drawn to scale.

[0033] Figure 1 Structure diagram of the present application;

[0034] Figure 2 Structure diagram of the inside of the aeration tank of the present application;

[0035] Figure 3 Structure diagram of the collection assembly of the present application;

[0036] Figure 4 Structure diagram of the inside of the aggregate hopper of the present application;

[0037] Figure 5 Structure diagram of the support plate of the present application;

[0038] Figure 6 Structure diagram of the transfer assembly of the present application;

[0039] Figure 7 Structure diagram of the inside of the crushing cylinder of the present application;

[0040] Figure 8 Structure diagram of the oxygenation assembly of the present application;

[0041] Figure 9 Structure diagram of the inside of the lifting cylinder and rotating tube of the present application;

[0042] Figure 10 Structure diagram of the inside of the lifting cylinder of the present application.

[0043] In the figure: 1 - aeration tank; 2 - transfer assembly; 3 - drainage valve; 4 - exhaust valve; 5 - addition valve; 6 - collection assembly; 7 - oxygenation assembly; 8 - discharge hopper; 9 - aggregate hopper; 10 - support plate; 11 - aggregate hopper; 12 - dispersion plate; 13 - sludge discharge pipe; 14 - sludge discharge hopper; 15 - material passage; 16 - scraper; 17 - control gear; 18 - control motor; 19 - fixed gear ring; 20 - driven gear; 21 - rotating column; 22 - drive motor; 23 - rotating tube; 24 - drive gear; 25 - sludge discharge hole; 26 - separation hole; 27 - filter plate; 28 - material passage hole; 29 - material shifting plate; 30 - fixed conical plate; 31 - transmission rod; 32 - lower servo motor; 33 - stepping motor; 34 - feeding pipe; 35 - feeding cylinder; 36 - auger; 37 - discharge pipe; 38 - crushing cylinder; 39 - through hole; 40 - crushing knife; 41 - drive shaft; 42 - upper servo motor; 43 - lifting cylinder; 44 - support cylinder; 45 - lifting telescopic cylinder; 46 - lifting column; 47 - transmission shaft; 48 - driven gear; 49 - driving gear; 50 - stirring blade; 51 - dividing knife; 52 - aeration disc; 53 - communication pipe; 54 - rotating tube; 55 - fixed circular plate; 56 - air inlet pipe; 57 - built-in motor; 58 - protection cylinder. DETAILED DESCRIPTION

[0044] The embodiments of the technical solutions of the present application will be described in detail below with reference to the drawings. The following embodiments are only used to more clearly illustrate the technical solutions of the present application, and therefore only serve as examples, and cannot limit the protection scope of the present application.

[0045] As shown in Figures 1 to 10 The self-collection type sewage treatment aeration separation mechanism includes an aeration tank 1. The inner wall and the lower inner wall of the aeration tank 1 are respectively provided with a collection assembly 6 and an oxygenation assembly 7. The oxygenation assembly 7 is connected in communication with an external air blower. The outer wall of the aeration tank 1 is uniformly distributed with a plurality of transfer assemblies 2 in communication with the inner cavity of the aeration tank 1. The outer wall of the aeration tank 1 is fixedly provided with an adding valve 5 and an exhaust valve 4 in communication with the inner cavity of the aeration tank 1 at a position between the collection assembly 6 and the oxygenation assembly 7. The bottom of the aeration tank 1 is fixedly provided with a drainage valve 3 in communication with the inner cavity of the aeration tank 1.

[0046] The collecting assembly 6 comprises a collecting cylinder 11 rotatably connected to the inner wall of the aeration tank 1, the top of the collecting cylinder 11 is provided with an opening, the bottom of the collecting cylinder 11 is in a circular truncated cone structure, the position of the inner wall of the aeration tank 1 below the collecting cylinder 11 is coaxially fixedly connected with a supporting plate 10, the top of the supporting plate 10 is provided in a shape following the bottom of the collecting cylinder 11 and is in frictional abutment with the bottom of the collecting cylinder 11, the bottom of the supporting plate 10 is fixedly provided with a collecting hopper 9, the position of the inner wall of the aeration tank 1 below the collecting hopper 9 is coaxially fixedly connected with a discharging hopper 8, the upper end of the discharging hopper 8 is fixedly and communicatively arranged with the lower end of the collecting hopper 9, the inner bottom of the collecting cylinder 11 is uniformly distributed with two vertical through-arranged material passing grooves 15 along the circumference, the position of the bottom of the supporting plate 10 in the collecting hopper 9 is uniformly distributed with two mud discharging holes 25, two separating holes 26 and two material passing holes 28 along the circumference, the mud discharging holes 25, the separating holes 26 and the material passing holes 28 are alternately arranged along the circumference and vertically penetrate the supporting plate 10, the diameters of the mud discharging holes 25, the separating holes 26 and the material passing holes 28 are the same as the diameter of the material passing grooves 15, the inner wall of the separating hole 26 is coaxially fixedly connected with a filter plate 27, the top surface of the filter plate 27 is flush with the top surface of the supporting plate 10, the position of the bottom of the supporting plate 10 in the collecting hopper 9 is fixedly provided with two mud discharging hoppers 14, the two mud discharging hoppers 14 are correspondingly communicated with the two mud discharging holes 25, the lower end of the mud discharging hopper 14 is fixedly provided with a mud discharging pipe 13 arranged in communication, one end of the mud discharging pipe 13 extends to the outside through the collecting hopper 9 and the aeration tank 1 in an obliquely downward direction, the top of the supporting plate 10 is coaxially provided with a rotatably arranged rotating pipe 23, the upper end of the rotating pipe 23 penetrates the collecting cylinder 11 in an upward direction and is rotatably connected to the inner top of the aeration tank 1, the rotating pipe 23 is rotatably connected with the collecting cylinder 11, the outer wall of the rotating pipe 23 at the position in the collecting cylinder 11 is uniformly distributed with a plurality of scraping plates 16 in frictional contact with the inner wall of the collecting cylinder 11 along the circumference, the rotating pipe 23 is coaxially provided with a rotating column 21 rotatably connected with the inner wall thereof, the bottom end of the rotating column 21 penetrates the supporting plate 10 and the collecting hopper 9 in a downward direction and extends into the discharging hopper 8, the outer wall of the rotating column 21 at the position in the discharging hopper 8 is uniformly distributed with a plurality of dispersing plates 12 along the circumference, one end of the dispersing plate 12 is arranged in an obliquely downward direction.

[0047] The inner lower wall of the aeration tank 1 is coaxially fixedly connected with a fixed conical plate 30, the tip of the fixed conical plate 30 is arranged in an upward direction, the upper end of the drain valve 3 penetrates the fixed conical plate 30 in an upward direction and is flush with the top surface of the fixed conical plate 30, the inner bottom of the aeration tank 1 is coaxially provided with a rotatably arranged transmission rod 31, the top end of the transmission rod 31 penetrates the fixed conical plate 30 in an upward direction and is rotatably and sealingly connected with the fixed conical plate 30, the outer wall of the transmission rod 31 at the position above the fixed conical plate 30 is uniformly distributed with a plurality of material stirring plates 29 in frictional contact with the top surface of the fixed conical plate 30 along the circumference;

[0048] The transfer assembly 2 comprises a vertically fixed feeding cylinder 35, a screw 36 coaxially arranged in the feeding cylinder 35, both ends of the screw 36 are rotatably connected with the inner top and inner bottom of the feeding cylinder 35, the upper outer wall and the lower outer wall of the feeding cylinder 35 are respectively provided with a discharge pipe 37 and a feeding pipe 34 which are in communication with the inner cavity of the feeding cylinder 35, one end of the feeding pipe 34 extends to the aeration tank 1 in an obliquely upward direction and is flush with the inner wall of the aeration tank 1, the end of the feeding pipe 34 is located above the fixed conical plate 30, the top of the aeration tank 1 is fixedly provided with a vertically arranged crushing cylinder 38, the bottom of the crushing cylinder 38 penetrates the aeration tank 1 downward and extends into the collecting cylinder 11, one end of the discharge pipe 37 is in communication with the inner cavity of the crushing cylinder 38, the inner bottom of the crushing cylinder 38 is provided with a plurality of vertically penetrating through holes 39, the inner top of the crushing cylinder 38 is coaxially provided with a rotatably arranged driving shaft 41, and the outer wall of the driving shaft 41 is uniformly distributed with a plurality of crushing knives 40 in the circumferential direction.

[0049] The oxygen increasing assembly 7 comprises two lifting cylinders 43 which are coaxially arranged above and below the aeration tank 1 and are in vertically sliding sealing connection with the inner wall of the aeration tank 1, the inner wall of the lifting cylinder 43 is fixedly connected with a fixed circular plate 55, the top of the fixed circular plate 55 is uniformly distributed with a plurality of vertically penetrating through rotating pipes 54 in the circumferential direction, the upper end and the lower end of the rotating pipe 54 extend to the outside of the lifting cylinder 43 and are flush with the top and the bottom of the lifting cylinder 43 respectively, the fixed circular plate 55 and the lifting cylinder 43 are in rotatable sealing connection with the rotating pipe 54, the plurality of rotating pipes 54 are synchronously rotatably arranged, the inner wall of the rotating pipe 54 is uniformly distributed with two aeration discs 52 in the circumferential direction at the position below the fixed circular plate 55, the inner wall of the rotating pipe 54 is uniformly distributed with a plurality of segmentation knives 51 in the circumferential direction at the position above the aeration disc 52, the inner bottom of the lower lifting cylinder 43 is coaxially provided with a rotatably arranged transmission shaft 47, the top end of the transmission shaft 47 penetrates the two lifting cylinders 43 and the two fixed circular plates 55 upwardly and extends to the outside, the lifting cylinder 43 and the fixed circular plate 55 are in rotatable sealing connection with the transmission shaft 47, the outer wall of the transmission shaft 47 is uniformly distributed with a plurality of stirring blades 50 in the circumferential direction at the position above the lifting cylinder 43, the top of the fixed circular plate 55 is uniformly distributed with a plurality of communication pipes 53 in the circumferential direction which are in communication with the lower inner cavity of the lifting cylinder 43, the communication pipe 53 penetrates the lifting cylinder 43 upwardly and extends to the outside, the upper end of the lower communication pipe 53 is in communication with the lower inner cavity of the upper lifting cylinder 43, the top of the discharge hopper 8 is uniformly distributed with a plurality of vertically penetrating through air inlet pipes 56 in the circumferential direction, the upper end of the upper communication pipe 53 extends to the air inlet pipe 56 upwardly and is in vertically sliding sealing connection with the air inlet pipe 56, and the upper end of the air inlet pipe 56 penetrates the aeration tank 1 and is in communication with the air blower.

[0050] The inner wall of the collecting cylinder 11 is coaxially fixed with a fixed gear ring 19, and the top of the aeration tank 1 is fixedly provided with a control motor 18, the output end of the control motor 18 extends into the collecting cylinder 11 through the aeration tank 1 and is fixedly connected with a control gear 17 engaged with the fixed gear ring 19.

[0051] The top of the aeration tank 1 is fixedly provided with two driving motors 22, one output end of one of the driving motors 22 extends into a rotating pipe 23 through the aeration tank 1 and is fixedly connected with the rotating column 21, a driven gear 20 is fixedly sleeved on the outer wall of the rotating pipe 23, and the output end of the other driving motor 22 extends through the aeration tank 1 and is fixedly connected with a driving gear 24 engaged with the driven gear 20.

[0052] The bottom of the aeration tank 1 is fixedly provided with a lower servo motor 32, and the output end of the lower servo motor 32 extends through the aeration tank 1 and is fixedly connected with a transmission rod 31.

[0053] The bottom of the feeding cylinder 35 is fixedly provided with a stepping motor 33, and the output end of the stepping motor 33 extends through the feeding cylinder 35 and is fixedly connected with an auger 36.

[0054] The top of the crushing cylinder 38 is fixedly provided with an upper servo motor 42, and the output end of the upper servo motor 42 extends through the crushing cylinder 38 and is fixedly connected with a driving shaft 41.

[0055] The top of the discharging hopper 8 is circumferentially and uniformly provided with two vertically penetrating support cylinders 44, the bottom of each support cylinder 44 is vertically and slidingly provided with a lifting column 46, the lifting column 46 is fixedly connected with the lifting cylinder 43 located above, the inner top of each support cylinder 44 is fixedly provided with a vertically arranged lifting telescopic cylinder 45, and the telescopic end of the lifting telescopic cylinder 45 is fixedly connected with the lifting column 46.

[0056] The outer wall of the transmission shaft 47 is fixedly sleeved with a driving gear 49 at a position located in the inner cavity of the lifting cylinder 43, the outer wall of the rotating pipe 54 is fixedly sleeved with a driven gear 48 engaged with the driving gear 49 at a position located in the inner cavity of the lifting cylinder 43, the bottom of the lifting cylinder 43 located below is fixedly provided with a protective cylinder 58 with an open top, the protective cylinder 58 is fixedly provided with an internal motor 57, and the output end of the internal motor 57 extends upward through the lifting cylinder 43 and is fixedly connected with the transmission shaft 47.

[0057] The working principle of the device is as follows:

[0058] In the process of purifying sewage in the aeration tank 1, the control motor 18 drives the control gear 17, the fixed gear ring 19 and the collecting cylinder 11 to rotate until the collecting cylinder 11 rotates to the material passage 15 and the material hole 28 completely overlap, the stepper motor 33 drives the auger 36 to rotate, the sewage at the bottom of the aeration tank 1 and the sinking activated sludge enter the upper cylinder 35 through the feeding pipe 34, the rotating auger 36 transports the sewage and activated sludge upwards and enters the crushing cylinder 38 through the discharge pipe 37, the upper servo motor 42 drives the driving shaft 41 and the crushing knife 40 to rotate, the rotating crushing knife 40 crushes the activated sludge in the crushing cylinder 38 to become small volume activated sludge, the sewage and the crushed activated sludge in the crushing cylinder 38 fall into the collecting cylinder 11 through the through hole 39, one of the driving motors 22 drives the driving gear 24, the driven gear 20, the rotating pipe 23 and the scraper 16 to rotate, the rotating scraper 16 scrapes the activated sludge and sewage in the collecting cylinder 11, the sewage and activated sludge in the collecting cylinder 11 enter the collecting hopper 9 through the material passage 15 and the material hole 28 and flow downwards, then the sewage and activated sludge flow downwards through the discharge hopper 8 and fall downwards, at the same time, the other driving motor 22 drives the rotating column 21 and the dispersion plate 12 to rotate, the rotating dispersion plate 12 disperses the sewage and activated sludge falling downwards, the dispersed activated sludge falls evenly into the sewage in the aeration tank 1, in the process of transporting the sewage and activated sludge at the bottom of the aeration tank 1 upwards, the lower servo motor 32 drives the transmission rod 31 and the stirring plate 29 to rotate slowly, the rotating stirring plate 29 can push the activated sludge deposited at the top corner of the fixed conical plate 30, so that the activated sludge can enter the upper cylinder 35 through the feeding pipe 34, the device can collect the activated sludge deposited at the bottom of the aeration tank 1 and add it to the upper area of the sewage evenly, so that the activated sludge in the device circulates vertically in the sewage, realizing the function of uniform distribution of activated sludge in the sewage, improving the purification effect and efficiency of the sewage;

[0059] When oxygen is added to the sewage in the aeration tank 1, the air blower compresses the external air and sends it into the air inlet pipe 56, the compressed air in the air inlet pipe 56 enters the lower inner cavity of the two lifting cylinders 43 through the communication pipe 53, the compressed air in the lower inner cavity of the lifting cylinder 43 is discharged through the aeration disc 52 on the rotating pipe 54, thereby oxygenating the sewage in the rotating pipe 54, at the same time, the lifting telescopic cylinder 45 drives the lifting column 46 and the lifting cylinder 43 to move vertically and reciprocally, the two lifting cylinders 43 reciprocate vertically in the process, the sewage in the aeration tank 1 reciprocates through the rotating pipe 54, the aeration disc 52 continuously oxygenates the sewage passing through the rotating pipe 54, the oxygenation method of the present application can uniformly oxygenate the sewage, improve the oxygen content and uniformity of the oxygen content in the sewage, so that the oxygen in the sewage is sufficient and uniform, and the oxidation effect of the activated sludge on the organic pollutants is improved;

[0060] After the sewage in the aeration tank 1 is purified, the motor 18 is controlled to drive the collecting cylinder 11 to rotate until the feeding groove 15 and the separation hole 26 are completely overlapped, and the auger 36 continuously transports the sewage and activated sludge in the aeration tank 1 into the collecting cylinder 11, the activated sludge in the collecting cylinder 11 is intercepted by the filter plate 27 in the collecting cylinder 11, and the sewage in the collecting cylinder 11 passes through the filter plate 27 and flows back into the aeration tank 1, until all the activated sludge in the aeration tank 1 is collected into the collecting cylinder 11, the purified sewage in the aeration tank 1 is discharged through the drain valve 3, the sewage to be purified is added into the aeration tank 1 through the adding valve 5, after the sewage is added, the motor 18 is controlled to drive the collecting cylinder 11 to rotate until the feeding groove 15 and the feeding hole 28 are completely overlapped, the activated sludge in the collecting cylinder 11 flows downward through the feeding groove 15 and the feeding hole 28 and enters the aeration tank 1, and then the added sewage in the aeration tank 1 is purified, similarly, when the activated sludge in the aeration tank 1 is replaced, after the activated sludge is collected into the collecting cylinder 11, the motor 18 is controlled to drive the collecting cylinder 11 to rotate until the feeding groove 15 and the discharge hole 25 are completely overlapped, the activated sludge in the collecting cylinder 11 enters the discharge hopper 14 through the feeding groove 15 and the discharge hole 25 and is discharged outside the equipment through the discharge pipe 13, and the activated sludge is added into the aeration tank 1 again through the adding valve 5, the device can separate the sewage and the activated sludge without transferring the sewage and the activated sludge, realizes the function of self-collection of the activated sludge, simplifies the recycling process and replacement process of the activated sludge, and improves the practicability of the device;

[0061] During the vertical transportation of the activated sludge, the rotating crushing knife 40 can crush the activated sludge passing through the crushing cylinder 38, the crushed activated sludge falls into the collecting cylinder 11 through the through hole 39 and flows downward into the sewage, during the oxygenation of the sewage, the built-in motor 57 drives the transmission shaft 47, the driving gear 49, the driven gear 48 and the rotating pipe 54 to rotate, and then drives the dividing knife 51 and the aeration disc 52 to rotate, during the vertical reciprocating movement of the lifting cylinder 43 driven by the lifting telescopic cylinder 45, the rotating dividing knife 51 crushes the activated sludge passing through the rotating pipe 54, and the activated sludge is crushed by the crushing knife 40 and the dividing knife 51, which effectively prevents the activated sludge from gathering to form large-volume flocculation bodies, improves the contact area of the activated sludge and the sewage, and then improves the action area of the activated sludge on the sewage, thereby speeding up the purification speed of the sewage;

[0062] During the rotation of the built-in motor 57 driven transmission shaft 47, the stirring blade 50 can also be driven to rotate, and the rotating stirring blade 50 can make the sewage, activated sludge and air in the aeration tank 1 mix more uniformly, further improving the purification effect and efficiency of the sewage.

[0063] Finally, it should be noted that the above embodiments are only used to illustrate the technical solutions of the present application, and are not intended to limit the present application; although the present application has been described in detail with reference to the foregoing embodiments, those skilled in the art should understand that the technical solutions recorded in the foregoing embodiments can still be modified, or some or all of the technical features can be replaced by equivalents; and these modifications or replacements do not make the essence of the corresponding technical solutions deviate from the scope of the technical solutions of the embodiments of the present application, and they should be covered in the scope of the claims and the description of the present application.

Claims

1. An aeration separation mechanism for self-collecting sewage treatment, characterized by: The utility model relates to an aeration tank (1), the aeration tank (1) upper inner wall and lower inner wall are equipped with collection subassembly (6) and oxygen -increasing subassembly (7) respectively, oxygen -increasing subassembly (7) are linked with outside air blower, the aeration tank (1) outer wall is evenly distributed with a plurality of transfer subassembly (2) with its inner chamber intercommunication along the circumference, the aeration tank (1) outer wall is fixed with the addition valve (5) and exhaust valve (4) with its inner chamber intercommunication between collection subassembly (6) and oxygen -increasing subassembly (7) position, the aeration tank (1) bottom is fixed with the drainage valve (3) with its inner chamber intercommunication, The collecting assembly (6) comprises a collecting cylinder (11) which is rotationally connected to the inner wall of the aeration tank (1), the top of the collecting cylinder (11) is provided with an opening, the bottom of the collecting cylinder (11) is in the shape of a circular truncated cone, a supporting plate (10) is coaxially fixed to the position below the collecting cylinder (11) on the inner wall of the aeration tank (1), the top of the supporting plate (10) is in the same shape as the bottom of the collecting cylinder (11) and is in frictional abutment with the bottom of the collecting cylinder (11), the bottom of the supporting plate (10) is fixedly provided with a collecting hopper (9), a discharging hopper (8) is coaxially fixed to the position below the collecting hopper (9) on the inner wall of the aeration tank (1), the upper end of the discharging hopper (8) is fixedly and communicatively arranged with the lower end of the collecting hopper (9), the inner bottom of the collecting cylinder (11) is uniformly provided with two vertical through material grooves (15) along the circumference, the position of the bottom of the supporting plate (10) in the collecting hopper (9) is uniformly provided with two mud discharge holes (25), two separation holes (26) and two material through holes (28) along the circumference, the mud discharge holes (25), the separation holes (26) and the material through holes (28) are alternately arranged along the circumference and vertically penetrate the supporting plate (10), the diameters of the mud discharge holes (25), the separation holes (26) and the material through holes (28) are the same as the diameter of the material grooves (15), the inner wall of the separation hole (26) is coaxially fixedly connected with a filter plate (27), the top surface of the filter plate (27) is flush with the top surface of the supporting plate (10), the bottom of the supporting plate (10) in the position of the collecting hopper (9) is fixedly provided with two mud discharge hoppers (14), the two mud discharge hoppers (14) are correspondingly communicated with the two mud discharge holes (25), the lower end of the mud discharge hopper (14) is fixedly provided with a mud discharge pipe (13) which is arranged in communication, one end of the mud discharge pipe (13) extends to the outside through the collecting hopper (9) and the aeration tank (1) in the obliquely downward direction, the top of the supporting plate (10) is coaxially provided with a rotationally arranged rotating pipe (23), the upper end of the rotating pipe (23) penetrates the collecting cylinder (11) in the upward direction and is rotationally connected to the inner top of the aeration tank (1), the rotating pipe (23) is rotationally connected with the collecting cylinder (11), the outer wall of the rotating pipe (23) in the position inside the collecting cylinder (11) is uniformly provided with a plurality of scraper plates (16) which are in frictional contact with the inner wall of the collecting cylinder (11) along the circumference, the rotating pipe (23) is coaxially provided with a rotating column (21) which is rotationally connected with the inner wall thereof, the bottom end of the rotating column (21) penetrates the supporting plate (10) and the collecting hopper (9) in the downward direction and extends into the discharging hopper (8), the outer wall of the rotating column (21) in the position inside the discharging hopper (8) is uniformly provided with a plurality of dispersion plates (12) along the circumference, one end of the dispersion plate (12) is arranged in the obliquely downward direction.

2. The self-capturing type aerating separation mechanism for sewage treatment according to claim 1, characterized in that: The lower inner wall of the aeration tank (1) is coaxially fixed with a fixed conical plate (30), the tip of the fixed conical plate (30) is upwardly arranged, the upper end of the drain valve (3) penetrates the fixed conical plate (30) upwardly and is flush with the top surface of the fixed conical plate (30), the inner bottom of the aeration tank (1) is coaxially provided with a driving rod (31) arranged in rotation, the top end of the driving rod (31) penetrates the fixed conical plate (30) upwardly and is rotationally and sealingly connected with the fixed conical plate (30), the outer wall of the driving rod (31) is uniformly provided with a plurality of stirring plates (29) in frictional contact with the top surface of the fixed conical plate (30) at a position above the fixed conical plate (30) in the circumferential direction; The transfer assembly (2) comprises an upper feeding cylinder (35) arranged vertically and fixedly, the upper feeding cylinder (35) is coaxially provided with an auger (36) inside, both ends of the auger (36) are rotationally connected with the inner top and inner bottom of the upper feeding cylinder (35) correspondingly, the upper outer wall and the lower outer wall of the upper feeding cylinder (35) are respectively provided with a discharge pipe (37) and a feeding pipe (34) in communication with the inner cavities thereof, one of the ports of the feeding pipe (34) extends to the aeration tank (1) obliquely upwardly and is flush with the inner wall of the aeration tank (1), the port of the feeding pipe (34) is located above the fixed conical plate (30), the top of the aeration tank (1) is fixedly provided with a crushing cylinder (38) arranged vertically, the bottom of the crushing cylinder (38) penetrates the aeration tank (1) downwardly and extends into the collecting cylinder (11), one of the ports of the discharge pipe (37) is in communication with the inner cavity of the crushing cylinder (38), the inner bottom of the crushing cylinder (38) is provided with a plurality of vertical through holes (39), the inner top of the crushing cylinder (38) is coaxially provided with a driving shaft (41) arranged in rotation, the outer wall of the driving shaft (41) is uniformly provided with a plurality of crushing knives (40) in the circumferential direction.

3. The self-capturing type separation mechanism for sewage treatment according to claim 1, characterized in that: The oxygen increasing assembly (7) comprises two lifting cylinders (43) coaxially arranged and arranged in upper and lower positions of the aeration tank (1), the lifting cylinders (43) are vertically and sealingly connected with the inner wall of the aeration tank (1), the inner wall of the lifting cylinder (43) is fixedly connected with a fixed circular plate (55) in a coaxial manner, the top of the fixed circular plate (55) is uniformly distributed with a plurality of rotating pipes (54) arranged in a vertical penetrating manner in a circumferential direction, the upper end and the lower end of the rotating pipe (54) extend to the outside of the lifting cylinder (43) and are flush with the top and the bottom of the lifting cylinder (43) respectively, the fixed circular plate (55) and the lifting cylinder (43) are rotationally and sealingly connected with the rotating pipe (54), a plurality of rotating pipes (54) are synchronously rotationally arranged, the inner wall of the rotating pipe (54) is uniformly distributed with two aeration discs (52) in a circumferential direction at a position below the fixed circular plate (55) and connected with the lower inner cavity of the lifting cylinder (43), the inner wall of the rotating pipe (54) is uniformly distributed with a plurality of segmentation knives (51) in a circumferential direction at a position above the aeration disc (52), the bottom of the lower lifting cylinder (43) is coaxially provided with a driving shaft (47) rotationally arranged, the top end of the driving shaft (47) penetrates through the two lifting cylinders (43) and the two fixed circular plates (55) and extends to the outside, the lifting cylinder (43) and the fixed circular plate (55) are rotationally and sealingly connected with the driving shaft (47), a plurality of stirring blades (50) are uniformly distributed in a circumferential direction at a position above the lifting cylinder (43) of the outer wall of the driving shaft (47), the top of the fixed circular plate (55) is uniformly distributed with a plurality of communication pipes (53) connected with the lower inner cavity of the lifting cylinder (43) in a circumferential direction, the communication pipe (53) extends to the outside by penetrating through the lifting cylinder (43) upwards, the upper end of the lower communication pipe (53) is connected with the lower inner cavity of the upper lifting cylinder (43), the top of the discharge hopper (8) is uniformly distributed with a plurality of air inlet pipes (56) arranged in a vertical penetrating manner in a circumferential direction, the upper end of the upper communication pipe (53) extends into the air inlet pipe (56) upwards and is vertically and sealingly connected with the air inlet pipe (56), the upper end of the air inlet pipe (56) penetrates through the aeration tank (1) and extends to the outside and is connected with the air blower.

4. The self-capturing type separation mechanism for sewage treatment according to claim 1, characterized in that: The inner wall of the collecting cylinder (11) is fixedly connected with a fixed gear ring (19) in a coaxial manner, the top of the aeration tank (1) is fixedly provided with a control motor (18), the output end of the control motor (18) extends into the collecting cylinder (11) by penetrating through the aeration tank (1) and is fixedly connected with a control gear (17) engaged with the fixed gear ring (19).

5. The self-capturing type aeroflottation device for sewage treatment according to claim 1, wherein: The top of the aeration tank (1) is fixedly provided with two driving motors (22), the output end of one of the driving motors (22) extends into the rotating pipe (23) by penetrating through the aeration tank (1) and is fixedly connected with the rotating column (21), the outer wall of the rotating pipe (23) is fixedly sleeved with a driven gear (20), the output end of the other driving motor (22) is fixedly connected with a driving gear (24) engaged with the driven gear (20).

6. The self-capturing type aeroflottation device for sewage treatment according to claim 2, wherein: The bottom of the aeration tank (1) is fixedly provided with a lower servo motor (32), and the output end of the lower servo motor (32) penetrates through the aeration tank (1) and is fixedly connected with a transmission rod (31).

7. The self-capturing type aeroflottation device for sewage treatment according to claim 2, wherein: The bottom of the feeding cylinder (35) is fixedly provided with a stepping motor (33), and the output end of the stepping motor (33) penetrates through the feeding cylinder (35) and is fixedly connected with an auger (36). The top of the crushing cylinder (38) is fixedly provided with an upper servo motor (42), and the output end of the upper servo motor (42) penetrates through the crushing cylinder (38) and is fixedly connected with a driving shaft (41).

8. The self-capturing type aeroflote according to claim 3, wherein: The top of the discharging hopper (8) is circumferentially and uniformly provided with two vertically penetrating support cylinders (44), the bottom of the support cylinder (44) is vertically and slidingly provided with a lifting column (46), the lifting column (46) is fixedly connected with a lifting cylinder (43) located above, the inner top of the support cylinder (44) is fixedly provided with a vertically arranged lifting telescopic cylinder (45), and the telescopic end of the lifting telescopic cylinder (45) is fixedly connected with the lifting column (46).

9. The self-capturing type separation mechanism for sewage treatment according to claim 3, wherein: The outer wall of the transmission shaft (47) is fixedly sleeved with a driving gear (49) at a position in the inner cavity of the lifting cylinder (43), the outer wall of the rotating pipe (54) is fixedly sleeved with a driven gear (48) engaged with the driving gear (49) at a position in the inner cavity of the lifting cylinder (43), the bottom of the lifting cylinder (43) located below is fixedly provided with a protective cylinder (58) with an open top, the protective cylinder (58) is fixedly provided with an internal motor (57), the output end of the internal motor (57) penetrates through the lifting cylinder (43) upwardly and is fixedly connected with the transmission shaft (47).

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