Backwashing device for microporous aerator of sewage treatment aeration tank

Abstract

The utility model belongs to the technical field of sewage treatment, and particularly relates to a backwashing device for a microporous aerator of a sewage treatment aeration tank, which comprises a microporous aerator body, the inner side wall of the microporous aerator body is rotationally connected with a spiral impeller; the spiral impeller penetrates through the wall body of the microporous aerator body and is rotationally connected with the microporous aerator body; the spiral impeller can be driven to rotate through the impact force of water flow, dirt attached to the surface of the microporous aerator body can be scraped off, a scraping plate makes full contact with the side wall of the microporous aerator body, and the problems that due to the fact that the existing flushing effect is poor, part of dirt is still left on the side wall of the microporous aerator body, and the service life of the microporous aerator body is prolonged can be solved. At the moment, residual dirt on the side wall of the microporous aerator body can be cleaned through the arranged scraping plate, meanwhile, the full contact effect of the scraping plate and the side wall of the microporous aerator body can be improved through the elastic force of the spring, and the cleaning effect is improved.

Description

Technical Field

[0001] The utility model belongs to the technical field of sewage treatment, in particular to a backwashing device for a microporous aerator in a sewage treatment aeration tank. Background Art

[0002] The sewage treatment aeration tank is a kind of equipment used for sewage treatment. Its main function is to inject oxygen into the sewage, use oxygen to react chemically with organic matter in the sewage, and oxidize and degrade the organic matter to achieve the purpose of purifying water quality.

[0003] In the prior art, the microporous aerator is an important component of the sewage treatment aeration tank. After the microporous aerator has been used for a long time, it is necessary to flush out the dirt and blockages remaining in its holes. When in use, the air inlet valve is mainly closed, and the water inlet valve is opened. The impact force and pressure of the water flow are used to remove the dirt and blockages remaining in the holes, thereby realizing the cleaning operation of the microporous aerator.

[0004] However, in the prior art, during the flushing process of the microporous aerator, it was found that since the flushing was performed from the inside to the outside, it was difficult to clean the dirt attached to the surface of the microporous aerator, which could easily cause the microporous aerator to be blocked again. Therefore, a backwashing device for a microporous aerator in a sewage treatment aeration tank is proposed to address the above problem. Utility Model Content

[0005] In order to make up for the deficiencies of the prior art and solve at least one technical problem raised in the background technology, the utility model proposes a backwashing device for a microporous aerator in a sewage treatment aeration tank.

[0006] The utility model adopts the following technical scheme to solve the technical problem: the utility model discloses a backwashing device for a microporous aerator in a sewage treatment aeration tank, comprising a microporous aerator body; the inner wall of the microporous aerator body is rotatably connected with a spiral impeller; the spiral impeller penetrates the wall of the microporous aerator body and is rotatably connected thereto; the end of the side wall of the spiral impeller is fixedly connected with a mounting block; the side wall of the mounting block is provided with a pair of telescopic rods; the telescopic rods are symmetrically arranged on both sides of the mounting block and have the same structure; a spring is sleeved on the outer side of the telescopic rod; the telescopic rod and the end of the spring are fixedly connected with the same scraper; at this time, the scraper is provided to clean the dirt remaining on the side wall of the microporous aerator body, and at the same time, the elastic force of the spring can increase the full contact between the scraper and the side wall of the microporous aerator body, thereby improving the cleaning effect.

[0007] Preferably, a magnetic block is fixed to the side wall of the scraper; a plurality of elastic rods are fixed to the inner wall of the microporous aerator body; the elastic rods are evenly distributed on the inner wall of the microporous aerator body and have the same structure; a hollow iron ball is fixed to the end of the elastic rod; a plurality of magnetic balls are arranged inside the hollow iron ball; at this time, the dirt is vibrated off by knocking with the hollow iron ball, thereby further enhancing the cleaning effect of the dirt attached to the side wall of the microporous aerator body.

[0008] Preferably, the side wall of the mounting block is provided with a pair of slide grooves; the slide grooves are symmetrically arranged on both sides of the mounting block and have the same structure; the side walls of the slide grooves are slidably connected with sliders; the side walls of the sliders are symmetrically fixed with a pair of elastic blocks; the side walls of the slide grooves are symmetrically fixed with a pair of protrusions; at this time, the sliders are inserted into the side walls of the slide grooves for fixing, thereby facilitating the disassembly and replacement of the scraper.

[0009] Preferably, a pair of spring rods are fixedly connected to the side walls of the mounting block; the spring rods are symmetrically arranged on both sides of the mounting block and have the same structure; the ends of the spring rods are fixedly connected to limit blocks; at this time, through the mutual cooperation between the spring rods and the limit blocks, a limiting function is played when the slider is inserted into the side wall of the slide groove.

[0010] Preferably, the side wall of the mounting block is hinged with a clamping block; the side wall of the sliding block is provided with a clamping slot; at this time, the clamping block is clamped into the side wall of the clamping slot, thereby further increasing the fixing effect of the sliding block on the side wall of the sliding slot.

[0011] Preferably, a buckle plate is fixedly connected to the side wall of the card block; the buckle plate is arranged in an arc shape; at this time, the buckle plate is arranged to facilitate the card block to be pulled open.

[0012] Preferably, a rubber sleeve is fixedly connected to the side wall of the hollow iron ball; in this case, the rubber sleeve plays a protective role when the hollow iron ball collides with the inner wall of the microporous aerator body.

[0013] Beneficial effects of the utility model:

[0014] 1. The utility model provides a backwashing device for a microporous aerator in a sewage treatment aeration tank. By providing a spiral impeller and a scraper, the existing poor flushing effect can be reduced, resulting in some dirt remaining on the side wall of the microporous aerator body, which is easy to cause clogging of the microporous aerator body again, affecting the use effect. At this time, the scraper is provided to clean the dirt remaining on the side wall of the microporous aerator body. At the same time, the elastic force of the spring can increase the full contact between the scraper and the side wall of the microporous aerator body, thereby improving the cleaning effect.

[0015] 2. The utility model provides a backwash device for a microporous aerator in a sewage treatment aeration tank. By setting a slide groove, it can reduce the inconvenience of disassembling and replacing the scraper when it is damaged after long-term use, resulting in a certain increase in workload. At this time, the slider is inserted into the side wall of the slide groove for fixing, thereby facilitating the disassembly and replacement of the scraper. BRIEF DESCRIPTION OF THE DRAWINGS

[0016] The drawings described herein are used to provide a further understanding of the present invention and constitute a part of the present application. The exemplary embodiments of the present invention and their descriptions are used to explain the present invention and do not constitute an improper limitation on the present invention. In the drawings:

[0017] Figure 1 It is a three-dimensional diagram of the utility model;

[0018] Figure 2 It is a three-dimensional diagram of the elastic rod in the utility model;

[0019] Figure 3 It is a three-dimensional diagram of the spring in the utility model;

[0020] Figure 4 It is a three-dimensional diagram of the elastic block in the utility model;

[0021] Figure 5 It is a three-dimensional diagram of the magnetic ball in the utility model.

[0022] Legend:

[0023] 1. Microporous aerator body; 11. Spiral impeller; 12. Mounting block; 13. Telescopic rod; 14. Spring; 15. Scraper; 2. Magnetic block; 21. Elastic rod; 22. Hollow iron ball; 23. Magnetic ball; 3. Slide; 31. Sliding block; 32. Elastic block; 33. Bump; 4. Spring rod; 41. Limit block; 5. Block; 51. Slot; 6. Buckle plate; 7. Rubber sleeve. DETAILED DESCRIPTION

[0024] The following will be combined with the drawings in the embodiments of the utility model to clearly and completely describe the technical solutions in the embodiments of the utility model. Obviously, the described embodiments are only part of the embodiments of the utility model, not all of the embodiments. Based on the embodiments of the utility model, all other embodiments obtained by ordinary technicians in this field without creative work are within the scope of protection of the utility model.

[0025] Specific examples are given below.

[0026] See also Figure 1-Figure 4The utility model provides a backwashing device for a microporous aerator in a sewage treatment aeration tank, comprising a microporous aerator body 1; a spiral impeller 11 is rotatably connected to the inner side wall of the microporous aerator body 1; the spiral impeller 11 penetrates the wall of the microporous aerator body 1 and is rotatably connected thereto; a mounting block 12 is fixedly connected to the end of the side wall of the spiral impeller 11; a pair of telescopic rods 13 are provided on the side wall of the mounting block 12; the telescopic rods 13 are symmetrically arranged on both sides of the mounting block 12 and have the same structure; a spring 14 is sleeved on the outer side of the telescopic rod 13; the ends of the telescopic rod 13 and the spring 14 are fixedly connected to the same scraper 15; when in use, when the valve is opened to flush the inside of the microporous aerator body 1, the impact force of the water flow will drive the spiral impeller 11 to rotate, thereby causing the scraper 15 to move on the surface of the microporous aerator body 1, and at this time, the scraper 15 can be attached to the microporous aerator body 1 under the full contact between the scraper 15 and the surface of the microporous aerator body 1. The dirt on the surface of the aerator body 1 is scraped off. At the same time, due to the long-term contact and friction between the scraper 15 and the surface of the microporous aerator body 1, the scraper 15 will be worn to a certain extent, so that the distance between the scraper 15 and the microporous aerator body 1 increases. At this time, under the elastic force of the spring 14, a certain reaction force can be applied to the scraper 15 to push the scraper 15 toward the side wall of the microporous aerator body 1 so that the scraper 15 is fully in contact with the side wall of the microporous aerator body 1. In this process, the existing poor flushing effect can be reduced, resulting in some dirt still remaining on the side wall of the microporous aerator body 1, which is easy to cause clogging of the microporous aerator body 1 again, affecting the use effect. At this time, the scraper 15 is set to clean the dirt remaining on the side wall of the microporous aerator body 1. At the same time, the elastic force of the spring 14 can increase the full contact between the scraper 15 and the side wall of the microporous aerator body 1, thereby improving the cleaning effect.

[0027] Further, such as Figure 2 , Figure 5As shown, the side wall of the scraper 15 is fixedly connected to a magnetic block 2; the inner wall of the microporous aerator body 1 is fixedly connected to a plurality of elastic rods 21; the elastic rods 21 are evenly distributed on the inner wall of the microporous aerator body 1 and have the same structure; a hollow iron ball 22 is fixedly connected to the end of the elastic rod 21; a plurality of magnetic balls 23 are arranged inside the hollow iron ball 22; when in use, when the scraper 15 rotates to the position of the hollow iron ball 22, the magnetic block 2 will generate a certain suction force on the hollow iron ball 22 and the magnetic ball 23, and pull the hollow iron ball 22. At this time, the elastic rod 21 will produce a certain deformation, so that the hollow iron ball 22 hits the inner wall of the microporous aerator body 1, and the magnetic ball 23 will also 22 is hit against the inner wall of the microporous aerator body 1, so that the impact force on the microporous aerator body 1 is increased. At this time, the dirt attached to the side wall of the microporous aerator body 1 can be vibrated off by the vibration generated by the impact. When the magnetic block 2 turns away from the position of the hollow iron ball 22, the magnetic force disappears, and the hollow iron ball 22 is driven to reset under the elastic force of the elastic rod 21. In this process, the cleaning effect of the scraper 15 can be reduced, resulting in some dirt remaining after the scraper 15 scrapes, thereby causing a certain impact on the use effect of the microporous aerator body 1. At this time, the dirt is vibrated off by knocking with the hollow iron ball 22, thereby further increasing the cleaning effect of the dirt attached to the side wall of the microporous aerator body 1.

[0028] Further, such as Figure 4 As shown, the side wall of the mounting block 12 is provided with a pair of slide grooves 3; the slide grooves 3 are symmetrically arranged on both sides of the mounting block 12 and have the same structure; the side wall of the slide groove 3 is slidably connected with a slider 31; the side wall of the slider 31 is symmetrically fixed with a pair of elastic blocks 32; the side wall of the slide groove 3 is symmetrically fixed with a pair of protrusions 33; when in use, the staff holds the telescopic rod 13, aligns the slider 31 with the slide groove 3, and inserts the slider 31 into the side wall of the slide groove 3 under the mutual sliding cooperation of the two. When the elastic block 32 contacts the protrusion 33, a certain pressure is applied to the slider 31. At this time, the elastic block The cam 33 will shrink when the slider 31 is pressed against the side wall of the slide groove 3, and the elastic block 32 will be offset from the projection 33. At this time, the elastic block 32 will quickly reset under the elastic action of the elastic block 32, so that they are stuck to each other, thereby fixing the slider 31 to fix the telescopic rod 13. In this process, the scraper 15 can be reduced from being inconvenient to disassemble and replace after being damaged after long-term use, resulting in a certain increase in workload. At this time, the slider 31 is inserted into the side wall of the slide groove 3 for fixing, thereby facilitating the removal and replacement of the scraper 15.

[0029] Further, such as Figure 4As shown, a pair of spring rods 4 are fixedly connected to the side walls of the mounting block 12; the spring rods 4 are symmetrically arranged on both sides of the mounting block 12 and have the same structure; the ends of the spring rods 4 are fixedly connected to the limit blocks 41; when in use, when the slider 31 is inserted into the side walls of the slide groove 3, the slider 31 will first contact and squeeze the limit blocks 41 on both sides, and the spring rod 4 can be extended and retracted by squeezing the limit blocks 41. At the same time, under the elastic force of the spring rod 4, the limit blocks 41 can be pushed, so that the slider 31 is pushed toward the middle of the slide groove 3, and the slider 31 will also slide toward the middle of the limit blocks 41 on both sides, and then it can be inserted into the side walls of the slide groove 3. In this process, it can reduce the difficulty of aligning the slider 31 when inserting it into the side walls of the slide groove 3, causing it to easily collide with the wall of the mounting block 12 during insertion, thereby causing the insertion process to be more cumbersome. At this time, through the mutual cooperation of the spring rod 4 and the limit blocks 41, the slider 31 can be inserted into the side walls of the slide groove 3.

[0030] Further, such as Figure 4 As shown, the side wall of the mounting block 12 is hinged with a clamping block 5; the side wall of the slider 31 is provided with a clamping groove 51; when in use, the staff first holds the clamping block 5 and pulls it. When the clamping block 5 is pulled open, the slider 31 is inserted into the side wall of the slide groove 3. At this time, the clamping block 5 will correspond to the position of the clamping groove 51, and then the clamping block 5 is released. Under the action of the torsion spring at the hinge of the clamping block 5, it will automatically reset, so that it is inserted into the side wall of the clamping groove 51, thereby fixing the slider 31. In this process, the poor fixing effect of the slider 31 can be reduced, resulting in the slider 31 being easily slipped out of the side wall of the slide groove 3 when an external object accidentally pulls the telescopic rod 13. At this time, the clamping block 5 is clamped into the side wall of the clamping groove 51, thereby further increasing the fixing effect of the slider 31 on the side wall of the slide groove 3.

[0031] Further, such as Figure 4 As shown, the side wall of the card block 5 is fixedly connected with a buckle plate 6; the buckle plate 6 is arranged in an arc shape; when in use, the staff puts the finger on the side wall of the buckle plate 6, and the finger can be hooked under the arc action of the buckle plate 6, and then a certain force is applied to the buckle plate 6 to pull the card block 5 open. In this process, it can reduce the inconvenience of the staff in holding the card block 5 when it needs to pull the card block 5 open, causing it to be easily scratched from the side wall of the card block 5 when pulling. At this time, the buckle plate 6 is set, which makes it convenient to pull the card block 5 open.

[0032] Further, such as Figure 2 , Figure 5As shown, the side wall of the hollow iron ball 22 is fixedly connected with a rubber sleeve 7; when in use, when the hollow iron ball 22 collides with the inner wall of the microporous aerator body 1, the rubber sleeve 7 can prevent the direct contact between the hollow iron ball 22 and the microporous aerator body 1, and at the same time, under the flexible effect of the rubber sleeve 7, the microporous aerator body 1 can be protected. In this process, the impact of the hollow iron ball 22 on the inner wall of the microporous aerator body 1 for a long time can be reduced, which can easily cause damage to the inner wall of the microporous aerator body 1, thereby causing a certain impact on the service life of the microporous aerator body 1. At this time, the rubber sleeve 7 is set to play a protective role when the hollow iron ball 22 collides with the inner wall of the microporous aerator body 1.

[0033] Working principle: During use, when the valve is opened to flush the microporous aerator body 1, the impact force of the water flow will drive the spiral impeller 11 to rotate, so that the scraper 15 moves on the surface of the microporous aerator body 1. At this time, the scraper 15 is fully in contact with the surface of the microporous aerator body 1, so that the dirt attached to the surface of the microporous aerator body 1 can be scraped off. At the same time, due to the long-term contact and friction between the scraper 15 and the surface of the microporous aerator body 1, the scraper 15 will be worn to a certain extent, so that the distance between the scraper 15 and the microporous aerator body 1 increases. At this time, under the elastic force of the spring 14, a certain reaction force can be applied to the scraper 15, and the scraper 15 is pushed toward the side wall of the microporous aerator body 1, so that the scraper 15 and the side wall of the microporous aerator body 1 When in use, when the scraper 15 rotates to the position of the hollow iron ball 22, the magnetic block 2 will generate a certain suction force on the hollow iron ball 22 and the magnetic ball 23, and pull the hollow iron ball 22. At this time, the elastic rod 21 will produce a certain deformation, so that the hollow iron ball 22 hits the inner wall of the microporous aerator body 1. At the same time, the magnetic ball 23 will also hit the inner wall of the hollow iron ball 22, so that the impact force on the microporous aerator body 1 is increased. At this time, the vibration generated by the impact can vibrate off the dirt attached to the side wall of the microporous aerator body 1. When the magnetic block 2 rotates away from the position of the hollow iron ball 22, the magnetic force disappears, and the hollow iron ball 22 is driven to reset under the elastic force of the elastic rod 21. When in use, the staff holds the telescopic rod 13, The slider 31 is aligned with the slide groove 3, and the slider 31 is inserted into the side wall of the slide groove 3 under the mutual sliding cooperation of the two. When the elastic block 32 contacts the protrusion 33, a certain pressure is applied to the slider 31. At this time, the elastic block 32 is squeezed by the protrusion 33 and will shrink. When the slider 31 is completely pressed into the side wall of the slide groove 3, the elastic block 32 will be staggered with the protrusion 33. At this time, the elastic block 32 will quickly reset under the elastic action of the elastic block 32, so that they are stuck to each other, thereby fixing the slider 31 to fix the telescopic rod 13. When in use, when the slider 31 is inserted into the side wall of the slide groove 3, the slider 31 will first contact and squeeze the limit blocks 41 on both sides. By squeezing the limit blocks 41, the spring rod 4 can be telescopically moved. Under the action of elastic force, the limit block 41 can be pushed, thereby pushing the slider 31 to the middle of the slide groove 3, and the slider 31 will also slide to the middle of the limit blocks 41 on both sides, and then it can be inserted into the side walls of the slide groove 3. When in use, the staff first holds the block 5 and pulls it. When the block 5 is pulled open, the slider 31 is inserted into the side wall of the slide groove 3. At this time, the block 5 will correspond to the position of the slot 51, and then the block 5 is released. Under the action of the torsion spring at the hinge of the block 5, it will automatically reset to make it inserted into the side wall of the slot 51, so that the slider 31 can be fixed. When in use, the staff puts their fingers on the side wall of the buckle plate 6, and the fingers can be hooked under the arc action of the buckle plate 6. Then a certain force is applied to the buckle plate 6 to pull the block 5 open. When in use,When the hollow iron ball 22 hits the inner wall of the microporous aerator body 1, the rubber sleeve 7 can prevent the hollow iron ball 22 from directly contacting the microporous aerator body 1. At the same time, the flexibility of the rubber sleeve 7 can protect the microporous aerator body 1.

[0034] The above shows and describes the basic principle, main features and advantages of the utility model. Those skilled in the art should understand that the utility model is not limited by the above embodiments, and the above embodiments and descriptions are only for explaining the principle of the utility model. Without departing from the spirit and scope of the utility model, the utility model may have various changes and improvements, and these changes and improvements fall within the scope of the utility model to be protected.

Claims

1. A microporous aerator backwashing device for a sewage treatment aeration tank, comprising a microporous aerator body (1); characterized in that: The inner side wall of the microporous aerator body (1) is rotatably connected to a spiral impeller (11); the spiral impeller (11) penetrates the wall of the microporous aerator body (1) and is rotatably connected thereto; a mounting block (12) is fixedly connected to the end of the side wall of the spiral impeller (11); a pair of telescopic rods (13) are provided on the side wall of the mounting block (12); the telescopic rods (13) are symmetrically arranged on both sides of the mounting block (12) and have the same structure; a spring (14) is sleeved on the outer side of the telescopic rod (13); the ends of the telescopic rod (13) and the spring (14) are fixedly connected to the same scraper (15).

2. A sewage treatment aeration tank microporous aerator backwashing device as claimed in claim 1, characterized in that: The side wall of the scraper (15) is fixedly connected to a magnetic block (2); the inner side wall of the microporous aerator body (1) is fixedly connected to a plurality of elastic rods (21); the elastic rods (21) are evenly distributed on the inner side wall of the microporous aerator body (1) and have the same structure; the ends of the elastic rods (21) are fixedly connected to a hollow iron ball (22); and a plurality of magnetic balls (23) are arranged inside the hollow iron ball (22).

3. A microporous aerator backwashing device for a sewage treatment aeration tank as claimed in claim 1, characterized in that: The side wall of the mounting block (12) is provided with a pair of slide grooves (3); the slide grooves (3) are symmetrically arranged on both sides of the mounting block (12) and have the same structure; the side wall of the slide groove (3) is slidably connected with a slider (31); the side wall of the slider (31) is symmetrically fixed with a pair of elastic blocks (32); the side wall of the slide groove (3) is symmetrically fixed with a pair of protrusions (33).

4. A backwashing device for a microporous aerator in a sewage treatment aeration tank as claimed in claim 1, characterized in that: A pair of spring rods (4) are fixedly connected to the side walls of the mounting block (12); the spring rods (4) are symmetrically arranged on both sides of the mounting block (12) and have the same structure; and the ends of the spring rods (4) are fixedly connected to limit blocks (41).

5. A microporous aerator backwashing device for a sewage treatment aeration tank as claimed in claim 3, characterized in that: A clamping block (5) is hingedly connected to the side wall of the mounting block (12); and a clamping groove (51) is provided on the side wall of the sliding block (31).

6. A backwashing device for a microporous aerator in a sewage treatment aeration tank as claimed in claim 5, characterized in that: A gusset plate (6) is fixedly connected to the side wall of the clamping block (5); the gusset plate (6) is arranged in an arc shape.

7. A backwashing device for a microporous aerator in a sewage treatment aeration tank as claimed in claim 2, characterized in that: A rubber sleeve (7) is fixedly connected to the side wall of the hollow iron ball (22).

Images