CN113087127A

CN113087127A - Aeration equipment for sewage treatment with prevent deposit jam structure

Info

Publication number: CN113087127A
Application number: CN202110381128.7A
Authority: CN
Inventors: 许道海
Original assignee: Individual
Current assignee: Individual
Priority date: 2021-04-09
Filing date: 2021-04-09
Publication date: 2021-07-09

Abstract

The invention relates to the technical field of sewage treatment equipment, in particular to an aeration device with a sediment blockage preventing structure for sewage treatment, which comprises a fan mechanism, wherein the fan mechanism comprises a fan shell, a fan impeller is rotatably connected to the middle position in the fan shell, an air outlet pipe is welded and communicated on the side wall of the fan shell, an aeration mechanism is arranged at the bottom of the fan shell, and the aeration mechanism comprises a main pipe body. According to the invention, the connecting pipe and the sleeve fixed on the outer side of the connecting pipe are driven to rotate by virtue of the rotation of the fan impeller, the inserted rod is driven to move outwards by virtue of the centrifugal force generated by the rotation, the support drives the inner pipe body to move upwards in the main pipe body by virtue of the connection and pulling of the inhaul cable, so that the through hole is aligned and communicated with the corresponding aeration nozzle, when the fan mechanism works, the aeration operation is carried out on sewage by virtue of the aeration nozzle, the loss of extra force is not needed when the fan mechanism is started, and the aeration efficiency and effect are convenient to improve.

Description

Aeration equipment for sewage treatment with prevent deposit jam structure

Technical Field

The invention relates to the technical field of sewage treatment equipment, in particular to an aeration device with a sediment blockage preventing structure for sewage treatment.

Background

The sewage treatment engineering is a water circulation treatment process for carrying out harmless treatment on sewage generated in the domestic production, the sewage treatment in the prior art is generally divided into processes such as rough filtration and impurity removal, microbial decomposition, sedimentation, sludge drying, fine filtration and the like, wherein when the microbial decomposition is carried out, in order to improve the decomposition efficiency of microorganisms on harmful substances in the sewage, oxygen is usually continuously filled into the sewage, and the operation is called aeration;

in the prior art, a blowing device is usually adopted to be matched with a pipeline to carry out active aeration operation on the interior of sewage, in the actual use process, because the pipeline for aeration and the spray head for aeration are placed in the sewage for a long time, and along with the generation of a large amount of impurities in other decomposition processes of the sewage, the spray head of the pipeline is easily blocked by sludge, therefore, in the prior art, the pipeline spray head for aeration is usually designed into a one-way valve structure with one-way conduction, through the connection of a spring component, when no gas is sprayed out from the interior of the spray head, the spray head is closed under the reset action of the spring component, the probability that the sludge enters the interior of the spray head to block the spray head is reduced, however, the spring component is used as a connecting piece for opening and closing the spray head, so that the resistance of an elastic component is inevitably overcome when the gas is sprayed, reduced efficiency and effectiveness of the nozzle aeration;

in addition, the aeration pipeline in the prior art is usually fixedly installed inside the sewage treatment tank in advance, and when the aeration pipeline is overhauled in the later period, the operation of pumping the sewage treatment tank to be dry is usually needed, so that the maintenance and the moving and the replacement of the aeration device are complicated. Therefore, we propose an aeration apparatus for sewage treatment having a structure for preventing clogging by sediment to solve the above problems.

Disclosure of Invention

The invention aims to provide an aeration device for sewage treatment with a sediment blockage prevention structure, and aims to solve the problems that the aeration device for sewage treatment in the prior art provided by the background art adopts a spring element to reset and control the opening and closing of an aeration spray head, so that the air output of the spray head is influenced by the resistance of a spring, and the aeration device is not convenient and fast to move and overhaul.

In order to achieve the purpose, the invention provides the following technical scheme: an aeration device with a sediment blockage preventing structure for sewage treatment comprises a fan mechanism, wherein the fan mechanism comprises a fan shell, a fan impeller is rotatably connected to the middle position inside the fan shell, an air outlet pipe is welded and communicated with the side wall of the fan shell, an aeration mechanism is arranged at the bottom of the fan shell and comprises a main pipe body, the outer wall of the upper portion of the main pipe body is fixedly communicated with the air outlet pipe through a communicating pipe, an aeration nozzle is uniformly and fixedly communicated with the outer wall of the main pipe body, a blockage preventing mechanism is connected between the main pipe body and the fan shell and comprises a connecting pipe, the connecting pipe is welded and fixed at the position under a central shaft of the fan impeller, a sleeve is fixedly welded and communicated with the outer wall of the connecting pipe, an inserting rod is inserted into the inner portion of the sleeve, and a balancing weight is welded and fixed at one end of the outer side of the inserting rod, the outer side cover of connecting pipe, sleeve pipe and balancing weight is equipped with the shell, and shell welded fastening is in the bottom intermediate position of fan casing, the bottom of shell with fixed intercommunication between the top of being responsible for the body, the inserted bar is close to one side fixedly connected with cable of connecting the pipe, be responsible for the inside of the body and insert and be equipped with interior body, and interior body and be responsible for sliding connection from top to bottom between the body, evenly seted up the through-hole on the outer wall of interior body, and the position of through-hole respectively with the position dislocation of aeration nozzle corresponds, the fixed welding in top of interior body has the support, the other end rotation of cable is connected in the top of support.

Preferably, the sleeve pipe is provided with two sets ofly altogether, and is two sets of the fixed intercommunication of sleeve pipe symmetry form is in on the both sides outer wall of connecting the pipe, every group that corresponds the sheathed tube inside all is inserted and is equipped with the inserted bar, sliding connection between inserted bar and the sleeve pipe, the appearance of balancing weight is crescent.

Preferably, a limiting strip is vertically fixed on the outer wall of the inner pipe body, a sliding groove is vertically formed in the inner wall of the main pipe body, the limiting strip formed in the outer wall of the inner pipe body is correspondingly embedded into the sliding groove formed in the inner wall of the main pipe body, the inner size of the sliding groove is matched with the outer size of the limiting strip, and the inner pipe body is connected with the main pipe body in an upward sliding mode through the matching of the limiting strip and the sliding groove.

Preferably, the fixed cover of being equipped with the circular rail on the upper and lower both ends outer wall of main pipe body, and every group the outside of circular rail all is equipped with the ring cover, and it is two sets of to correspond evenly encircle between the outer wall of ring cover and be fixed with the spoiler, the spoiler rotates through the adaptation of ring cover and circular rail and is connected between the main pipe body, the appearance of aeration shower nozzle is the bending type of downward sloping, the exit end of aeration shower nozzle is just to on the outer wall of spoiler.

Preferably, the aeration nozzles are uniformly and vertically fixedly communicated with the outer wall of the main pipe body from top to bottom, and the sizes of the openings at one end of the outer sides of the aeration nozzles in the same vertical row are gradually increased from top to bottom.

Preferably, fixedly connected with floating block on the outer wall of fan casing, and floating block is provided with three groups altogether, three groups the floating block is the even fixed connection in fan casing's the outside of surrounding form, every group the inside of floating block is the cavity form, and every group the inside of floating block all is filled with the helium.

Preferably, the top of the floating block is provided with a gas gathering mechanism which comprises a top cover, the top cover is in an inverted round basin shape, and an activated carbon plate is fixedly attached to the inner wall of the top cover.

Preferably, an air inlet pipe is arranged above the axis of the fan impeller and fixedly communicated with the top of the fan shell, the central position of the top cover corresponds to the axis position of the fan impeller, an inlet pipe is fixedly welded in the middle of the top cover and is funnel-shaped, and the bottom of the inlet pipe is vertically inserted into the air inlet pipe.

Preferably, the top of overhead guard is provided with actuating mechanism, and actuating mechanism is including motor support frame, motor support frame welded fastening is in the top intermediate position of overhead guard, the top fixed mounting of overhead guard has servo motor, and fixedly connected with drive shaft on servo motor's the rotation output shaft, the other end fixed connection of drive shaft is on fan wheel's axle center position.

Compared with the prior art, the invention has the beneficial effects that:

1. the anti-blocking mechanism is arranged between the fan mechanism and the aeration mechanism, the connecting pipe and the sleeve fixed on the outer side of the connecting pipe are driven to rotate by means of rotation of the fan impeller, the inserted rod is driven to move outwards by means of centrifugal force generated by rotation, the support drives the inner pipe body to move upwards in the main pipe body by means of connection and pulling of the inhaul cable, so that the through hole is aligned and communicated with the corresponding aeration nozzle, when the fan mechanism works, air blowing operation is carried out on the inner part of the main pipe body, aeration operation is carried out on sewage by the aeration nozzle, loss of extra external force is avoided when the device is opened, and aeration efficiency and effect are convenient to promote;

2. the ring sleeve is sleeved on the outer side of the ring rail, so that the spoiler is rotatably connected with the main pipe body through the matching of the ring sleeve and the ring rail, meanwhile, one end of the outer side of the aeration spray head is bent downwards and is opposite to the spoiler, and the spoiler is pushed to rotate by means of the impact of air flow sprayed from the interior of the aeration spray head, so that the flow rate of sewage around the device is increased, and the mixing efficiency of oxygen and microorganisms is improved;

3. encircle to fix on fan housing's outer wall through setting up the kicking block for the device can float on the sewage surface of water, need not to with the device fixed mounting at the bottom of the pool, the effectual convenience that has promoted the device later stage maintenance and remove, cover at the top of kicking block through setting up the overhead guard, and at its internally mounted active carbon plate, effectual peculiar smell to in the come-up gas absorbs, is convenient for avoid the peculiar smell among the effluent water sump surrounding environment overweight.

Description of the drawings:

in order to more clearly illustrate the embodiments of the present invention or the technical solutions in the prior art, the drawings used in the description of the embodiments or the prior art will be briefly described below, it is obvious that the drawings in the following description are only some embodiments of the present invention, and for those skilled in the art, other drawings can be obtained according to the drawings without creative efforts.

FIG. 1 is a schematic perspective view of the present invention;

FIG. 2 is a schematic exploded perspective view of the present invention;

FIG. 3 is a schematic front view of the structure of the present invention;

FIG. 4 is a schematic sectional elevation view of the structure of the present invention;

FIG. 5 is an enlarged view of the structure at A in FIG. 4 according to the present invention;

FIG. 6 is a schematic perspective view of the connection structure of the blower mechanism, the aeration mechanism and the anti-clogging mechanism according to the present invention;

FIG. 7 is a schematic perspective sectional view of the aeration mechanism according to the present invention;

fig. 8 is a perspective view of a part of the anti-clogging mechanism of the present invention.

In the figure: 100. a fan mechanism; 110. a fan housing; 120. a fan impeller; 130. an air inlet pipe; 140. an air outlet pipe; 200. an aeration mechanism; 210. a primary tube; 220. a communicating pipe; 230. an aeration nozzle; 240. a circular rail; 250. sleeving a ring; 260. a spoiler; 300. an anti-clogging mechanism; 310. connecting pipes; 320. a sleeve; 330. inserting a rod; 340. a balancing weight; 350. a housing; 360. a cable; 370. an inner tube body; 380. a through hole; 390. a support; 400. floating blocks; 500. a gas gathering mechanism; 510. a top cover; 520. an activated carbon plate; 530. an inlet tube; 600. a drive mechanism; 610. a motor support frame; 620. a servo motor; 630. a drive shaft.

The specific implementation mode is as follows:

the technical solutions in the embodiments of the present invention will be clearly and completely described below with reference to the drawings in the embodiments of the present invention, and it is obvious that the described embodiments are only a part of the embodiments of the present invention, and not all of the embodiments. All other embodiments, which can be derived by a person skilled in the art from the embodiments given herein without making any creative effort, shall fall within the protection scope of the present invention.

Referring to fig. 1-8, an embodiment of the present invention: an aeration device with a deposit blockage preventing structure for sewage treatment comprises a fan mechanism 100, wherein the fan mechanism 100 comprises a fan shell 110, a fan impeller 120 is rotatably connected to the middle position in the fan shell 110, an air outlet pipe 140 is welded and communicated with the side wall of the fan shell 110, an aeration mechanism 200 is arranged at the bottom of the fan shell 110, the aeration mechanism 200 comprises a main pipe body 210, the outer wall of the upper part of the main pipe body 210 is fixedly communicated with the air outlet pipe 140 through a communicating pipe 220, aeration nozzles 230 are uniformly and fixedly communicated with the outer wall of the main pipe body 210, a blockage preventing mechanism 300 is connected between the main pipe body 210 and the fan shell 110, the blockage preventing mechanism 300 comprises a connecting pipe 310, the connecting pipe 310 is welded and fixed at the position under the central shaft of the fan impeller 120, a sleeve 320 is fixedly welded and communicated with the outer wall of the connecting pipe 310, and an inserting rod 330 penetrates through the inner part of the sleeve 320, a balancing weight 340 is fixedly welded at one end of the outer side of the insertion rod 330, an outer shell 350 is sleeved on the outer sides of the connecting pipe 310, the outer shell 350 is fixedly welded at the middle position of the bottom of the fan shell 110, the bottom of the outer shell 350 is fixedly communicated with the top of the main pipe 210, the insertion rod 330 is fixedly connected with a pull cable 360 close to one side of the connecting pipe 310, an inner pipe 370 is inserted into the main pipe 210, the inner pipe 370 is vertically and slidably connected with the main pipe 210, through holes 380 are uniformly formed in the outer wall of the inner pipe 370, the positions of the through holes 380 are respectively staggered and correspond to the positions of the aeration nozzles 230, a bracket 390 is fixedly welded at the top of the inner pipe 370, and the other end of the pull cable 360 is rotatably connected at the top of the bracket 390, when the device works, the fan mechanism 100 works under a working state, the fan impeller 120 drives the connecting pipe 310 fixedly connected at, by means of centrifugal action during whipping, the insert rod 330 is driven by the counterweight block 340 to move outwards, the inner pipe 370 is driven by the pull rope 360 to move upwards by the pulling of the insert rod 330, under such operation, the through hole 380 and the corresponding aeration nozzle 230 are aligned and communicated with each other, the synchronous fan mechanism 100 works to charge the outside air into the main pipe 210, and the air is discharged into the water through the aeration nozzle 230 arranged on the outer wall of the main pipe 210, so as to perform aeration operation on the sewage, if the fan mechanism 100 stops working, the fan impeller 120 stops rotating, under the action of the self gravity of the inner pipe 370, the inner pipe 370 slides downwards in the main pipe 210, and the insert rod 330 drives the counterweight block 340 to move back and reset through the connection of the pull rope 360, so that the staggered closure is formed between the through hole 380 and the corresponding aeration nozzle 230 again, thereby preventing deposited impurities in the sewage from accumulating in the main pipe 210, compared with the prior art that the on-off of the aeration nozzle 230 is controlled by adopting a spring, a one-way valve and the like, the structure effectively ensures the working stability of the device, avoids the condition that the resistance of elastic elements in the structure such as the one-way valve and the like is required to be overcome in the flowing state of airflow during working, and effectively ensures the stable operation of aeration;

furthermore, two sets of sleeves 320 are arranged, the two sets of sleeves 320 are symmetrically and fixedly communicated with the outer walls of the two sides of the connecting pipe 310, the inserting rods 330 are inserted into the corresponding sets of sleeves 320, the inserting rods 330 are slidably connected with the sleeves 320, the counterweight block 340 is crescent-shaped, and the two sets of sleeves 320 are arranged, so that the symmetrical sides of the connecting pipe 310 are uniformly stressed when the connecting pipe rotates, the working stability of the device is effectively guaranteed, the phenomenon that the gravity center of the device is deviated during rotation is avoided, meanwhile, the counterweight block 340 is crescent-shaped, and the front end and the rear end of the counterweight block are sharp, so that the influence of wind resistance and water resistance on the rotation of the counterweight block 340 is effectively reduced;

furthermore, a limit strip is vertically fixed on the outer wall of the inner tube 370, a sliding groove is vertically formed in the inner wall of the main tube 210, the limit strip formed in the outer wall of the inner tube 370 is correspondingly embedded in the sliding groove formed in the inner wall of the main tube 210, the inner size of the sliding groove is matched with the outer size of the limit strip, the inner tube 370 is in upward sliding connection with the main tube 210 through the matching of the limit strip and the sliding groove, the limit strip matched with the sliding groove in the inner wall of the main tube 210 is arranged on the outer wall of the inner tube 370, and the inner tube 370 can only slide up and down in the main tube 210 through the matching between the limit strip and the sliding groove, so that the inner tube 370 is prevented from rotating in the main tube 210, the transverse dislocation between the through hole 380 and the corresponding aeration nozzle 230 is avoided, and the working stability of the device is effectively guaranteed;

further, the outer walls of the upper and lower ends of the main pipe 210 are fixedly sleeved with ring rails 240, the outer side of each ring rail 240 is sleeved with a ring 250, spoilers 260 are uniformly fixed between the outer walls of the two corresponding ring sleeves 250 in a surrounding manner, the spoilers 260 are rotatably connected with the main pipe 210 through the fitting of the ring sleeves 250 and the ring rails 240, the aeration nozzle 230 is shaped like a downwardly inclined bent, the outlet end of the aeration nozzle 230 faces the outer wall of the spoilers 260, when the device works, the aeration nozzle 230 is arranged corresponding to the outer side of the spoilers 260, the spoilers 260 are rotatably connected with the main pipe 210 through the ring sleeves 250 and the ring rails 240, when air flow is ejected outwards through the aeration nozzle 230, the spoilers 260 rotate on the outer side of the main pipe 210 under the pushing force formed by the air flow, the flow rate of surrounding sewage is accelerated through the stirring of the spoilers 260 in sewage, therefore, the aeration efficiency of the device is improved, and meanwhile, the airflow impacts the outer wall of the spoiler 260 and is dispersed after being subjected to relative acting force, so that the contact sufficiency of oxygen in the airflow and microorganisms in the sewage is favorably improved, and the aeration effect is further enhanced;

further, the aeration nozzles 230 are uniformly and vertically fixed and communicated on the outer wall of the main pipe body 210 from top to bottom, the size of the opening at one end of the outer side of the aeration nozzles 230 in the same vertical row is gradually increased from top to bottom, the openings of the outer sides of the aeration nozzles 230 arranged in the same row are gradually increased from top to bottom, thereby improving the gas transmission efficiency of the upper and lower aeration nozzles 230 to the sewage when the device works, because the air flow is filled into the water to form bubbles, and the bubbles move from bottom to top in the water, and the coverage range of the air flow sprayed from the upper layer aeration nozzle 230 is far smaller than that of the lower layer aeration nozzle 230, the size of the outer opening of the aeration nozzle 230 is gradually increased from top to bottom, so that the oxygen filled into the sewage is uniformly distributed according to the actual condition, the ineffective loss of the oxygen is avoided, and the efficiency and the effect of aeration work are effectively improved;

furthermore, the outer wall of the fan shell 110 is fixedly connected with the floating blocks 400, three groups of floating blocks 400 are arranged on the floating blocks 400, the three groups of floating blocks 400 are uniformly and fixedly connected to the outer side of the fan shell 110 in a surrounding mode, the inner part of each group of floating blocks 400 is hollow, helium is filled in each group of floating blocks 400, the floating blocks 400 are fixedly arranged on the outer side of the fan shell 110 and are matched with the floating blocks 400, and the helium with lighter texture is filled in the floating blocks 400, so that the floating force provided by the floating blocks 400 for the device is effectively improved, the device can directly float on the upper surface of sewage when in use, other devices are not needed for installation and fixation, and the use convenience of the device is effectively improved;

further, the gas gathering mechanism 500 is installed at the top of the floating block 400, the gas gathering mechanism 500 comprises a top cover 510, the top cover 510 is in an inverted round basin shape, an activated carbon plate 520 is fixedly attached to the inner wall of the top cover 510, the top cover 510 is arranged to cover the top of the floating block 400, gas floating out of the sewage is effectively gathered, meanwhile, peculiar smell in the gas is adsorbed through the activated carbon plate 520, and the outward diffusion of the peculiar smell in the sewage treatment operation process is effectively reduced;

further, an air inlet pipe 130 is arranged above the axis of the fan impeller 120, the air inlet pipe 130 is fixedly communicated with the top of the fan housing 110, the center position of the top cover 510 corresponds to the axis position of the fan impeller 120, an inlet pipe 530 is fixedly welded in the middle position of the top cover 510, the shape of the inlet pipe 530 is funnel-shaped, the bottom of the inlet pipe 530 is vertically inserted into the air inlet pipe 130, the inlet pipe 530 is inserted into the air inlet pipe 130, when the device works, the fan mechanism 100 is started, the fan impeller 120 rotates in the fan housing 110, the gas gathered below the top cover 510 can be re-pumped into the main pipe 210, the external gas can be further re-pumped into the main pipe 210 by the synchronous guiding of the inlet pipe 530, the gathering of the surrounding gas is facilitated, and the gas emitted from the sewage is prevented from being volatilized outwards, the surrounding air quality during sewage treatment aeration is effectively guaranteed;

further, a driving mechanism 600 is arranged at the top of the top cover 510, the driving mechanism 600 comprises a motor support frame 610, the motor support frame 610 is fixedly welded at the middle position of the top cover 510, a servo motor 620 is fixedly arranged above the top cover 510, a driving shaft 630 is fixedly connected to a rotating output shaft of the servo motor 620, the other end of the driving shaft 630 is fixedly connected to the axis position of the fan impeller 120, the driving mechanism 600 is arranged at the top of the top cover 510, the driving shaft 630 is connected between a power output shaft of the servo motor 620 and a central shaft of the fan impeller 120, and power input is provided for the device through transmission connection of the driving shaft 630 and power-on starting of the servo motor 620;

the working principle is as follows: when the device works, a worker places the device in sewage to be subjected to aeration operation, and provides enough buoyancy for the device through the floating block 400, so that the device floats on the surface of the sewage and the aeration mechanism 200 is vertically inserted into the sewage;

when the device works, the device is electrified to start, the servo motor 620 is electrified to start and then drives the driving shaft 630 fixed on the rotating output shaft of the servo motor to rotate, so that the fan impeller 120 fixedly connected below is driven to rotate in the fan shell 110, the connecting pipe 310 fixed at the lower end of the fan impeller 120 is driven to rotate in a rotating state, so that the sleeve 320 fixedly communicated with the outer side of the connecting pipe 310 rotates around the connecting pipe 310, under the action of centrifugal force generated by rotation and swing, the balance weight 340 drives the inserting rod 330 to move outwards, the inner pipe 370 moves upwards through connection and pulling of the inhaul cable 360, and when the inserting rod 330 moves to a limit position, the through hole 380 formed in the outer wall of the inner pipe 370 after moving upwards is communicated with the corresponding aeration nozzle 230 in an aligned manner;

when the device works, the fan impeller 120 rotates in the fan shell 110, external air is sucked in through the air inlet pipe 130 and is filled into the main pipe body 210 through the communication between the air outlet pipe 140 and the communicating pipe 220, airflow is sprayed into sewage through the aeration nozzle 230, and the spoiler 260 is pushed under the synchronous pushing of the airflow to stir surrounding sewage, so that the mixing efficiency of oxygen in the airflow and microorganisms in the sewage is improved;

when the air flow collecting device works, air flow is filled into sewage to form bubbles, the rest bubbles move upwards and quickly in a sewage water body, gas in the bubbles rushing upwards is collected by guiding of the top cover 510, peculiar smell in the gas is absorbed by activated carbon particles in the activated carbon plate 520 in the top cover 510, the peculiar smell is prevented from diffusing outwards, and when the air flow collecting device works, oxygen in the rest gas is pumped into the main pipe body 210 again when the air flow collecting device works by the fan mechanism 100;

when the device stops working, the fan impeller 120 inside the fan mechanism 100 stops rotating, at this time, under the action of the self-gravity of the inner pipe body 370, the inner pipe body 370 slides downwards inside the main pipe body 210, the pull rod 330 is pulled to reset through the pull cable 360, and the inner pipe body 370 moves downwards to make the through hole 380 and the corresponding aeration nozzle 230 closed in a staggered manner, so as to prevent settled impurities in sewage from entering the inside of the main pipe body 210.

It will be evident to those skilled in the art that the invention is not limited to the details of the foregoing illustrative embodiments, and that the present invention may be embodied in other specific forms without departing from the spirit or essential attributes thereof. The present embodiments are therefore to be considered in all respects as illustrative and not restrictive, the scope of the invention being indicated by the appended claims rather than by the foregoing description, and all changes which come within the meaning and range of equivalency of the claims are therefore intended to be embraced therein. Any reference sign in a claim should not be construed as limiting the claim concerned.

Claims

1. The utility model provides an aeration equipment for sewage treatment with prevent deposit block up structure, includes fan mechanism (100), fan mechanism (100) are including fan casing (110), and the inside intermediate position of fan casing (110) rotates and is connected with fan wheel (120), the welding intercommunication has a tuber pipe (140) on the lateral wall of fan casing (110), the bottom of fan casing (110) is provided with aeration mechanism (200), and aeration mechanism (200) are including being responsible for body (210), be in through communicating pipe (220) fixed intercommunication on the top outer wall of being responsible for body (210) on tuber pipe (140), evenly fixed intercommunication has aeration nozzle (230), its characterized in that on the outer wall of being responsible for body (210): the anti-blocking mechanism (300) is connected between the main pipe body (210) and the fan shell (110), the anti-blocking mechanism (300) comprises a connecting pipe (310), the connecting pipe (310) is fixedly welded under a central shaft of the fan impeller (120), a sleeve (320) is fixedly welded and communicated on the outer wall of the connecting pipe (310), an inserting rod (330) is inserted in the sleeve (320) in a penetrating manner, a balancing weight (340) is fixedly welded at one end of the outer side of the inserting rod (330), a shell (350) is sleeved on the outer sides of the connecting pipe (310), the sleeve (320) and the balancing weight (340), the shell (350) is fixedly welded and fixed at the middle position of the bottom of the fan shell (110), the bottom of the shell (350) is fixedly communicated with the top of the main pipe body (210), a pull cable (360) is fixedly connected on one side of the connecting pipe (310) close to the inserting rod (330), an inner pipe (370) is inserted into the main pipe (210), the inner pipe (370) is connected with the main pipe (210) in a sliding mode from top to bottom, through holes (380) are uniformly formed in the outer wall of the inner pipe (370), the positions of the through holes (380) correspond to the positions of the aeration nozzles (230) in a staggered mode respectively, a support (390) is fixedly welded to the top of the inner pipe (370), and the other end of the pull cable (360) is rotatably connected to the top of the support (390).

2. An aeration apparatus for sewage treatment having a deposit clogging preventing structure according to claim 1, wherein: sleeve pipe (320) are provided with two sets ofly altogether, and are two sets of the fixed intercommunication of sleeve pipe (320) symmetry form is in on the both sides outer wall of even pipe (310), every group that corresponds the inside of sleeve pipe (320) is all inserted and is equipped with inserted bar (330), sliding connection between inserted bar (330) and sleeve pipe (320), the appearance of balancing weight (340) is crescent.

3. An aeration apparatus for sewage treatment having a deposit clogging preventing structure according to claim 1, wherein: the outer wall of the inner pipe body (370) is vertically fixed with a limiting strip, the inner wall of the main pipe body (210) is vertically provided with a sliding groove, the limiting strip arranged on the outer wall of the inner pipe body (370) is correspondingly embedded into the sliding groove arranged on the inner wall of the main pipe body (210), the inner size of the sliding groove is matched with the outer size of the limiting strip, and the inner pipe body (370) is connected with the main pipe body (210) in an upward sliding mode through the matching of the limiting strip and the sliding groove.

4. An aeration apparatus for sewage treatment having a deposit clogging preventing structure according to claim 1, wherein: the fixed cover of being equipped with ring rail (240) on the upper and lower both ends outer wall of main pipe body (210), and every group the outside of ring rail (240) all is equipped with ring cover (250), and corresponding two sets of evenly encircle between the outer wall of ring cover (250) and be fixed with spoiler (260), spoiler (260) are connected with rotating between main pipe body (210) through the adaptation of ring cover (250) and ring rail (240), the appearance of aeration shower nozzle (230) is the bending form of downward sloping, the exit end of aeration shower nozzle (230) is just on the outer wall of spoiler (260).

5. An aeration apparatus for sewage treatment having a deposit clogging preventing structure according to claim 1, wherein: the aeration nozzles (230) are uniformly and vertically fixedly communicated with the outer wall of the main pipe body (210) from top to bottom, and the sizes of openings at one end of the outer sides of the aeration nozzles (230) in the same vertical row are gradually increased from top to bottom.

6. An aeration apparatus for sewage treatment having a deposit clogging preventing structure according to claim 1, wherein: the outer wall of the fan shell (110) is fixedly connected with floating blocks (400), three groups of floating blocks (400) are arranged, the floating blocks (400) are uniformly and fixedly connected to the outer side of the fan shell (110) in a surrounding mode, each group of floating blocks (400) is hollow, and helium is filled in each group of floating blocks (400).

7. An aeration apparatus for sewage treatment having a structure for preventing clogging by sediment according to claim 6, wherein: the top of floating block (400) is installed and is gathered gas mechanism (500), and gathers gas mechanism (500) including overhead guard (510), the appearance of overhead guard (510) is the round basin form of invering, fixed laminating has activated carbon plate (520) on the inner wall of overhead guard (510).

8. An aeration apparatus for sewage treatment having a structure for preventing clogging by sediment according to claim 7, wherein: the utility model discloses a fan impeller (120) of fan, including fan shell (110), top cover (510), inlet tube (130), inlet tube (530) and funnel-shaped, the bottom of inlet tube (530) is vertical to be inserted and to be established the inside of inlet tube (130), and the fixed top that communicates at fan shell (110) of inlet tube (130), the central point of top cover (510) puts and fan impeller (120) the axle center position corresponding, the fixed welding in intermediate position of top cover (510) has inlet tube (530), and inlet tube (530) the appearance is for leaking hopper-shaped, the bottom.

9. An aeration apparatus for sewage treatment having a structure for preventing clogging by sediment according to claim 7, wherein: the top of overhead guard (510) is provided with actuating mechanism (600), and actuating mechanism (600) including motor support frame (610), motor support frame (610) welded fastening is in the top intermediate position of overhead guard (510), the top fixed mounting of overhead guard (510) has servo motor (620), and fixedly connected with drive shaft (630) on the rotation output shaft of servo motor (620), the other end fixed connection of drive shaft (630) is on the axle center position of fan wheel (120).