An air lift aeration device

Abstract

The invention belongs to the technical field of sewage treatment, and specifically is an air lift aeration device, comprising a water lifting pipe; a plurality of flow dividers are fixedly connected to the outside of the top of the water lifting pipe; an umbrella-shaped bell is fixedly connected to the outside of the flow divider; an air delivery pipe is installed on the inner wall of the umbrella-shaped bell; circulating water is stirred by a plurality of stirring blades, so that oxygen in the air is accelerated to transfer to the water, thereby improving the aeration effect of sewage treatment, and a plurality of dispersion holes can be used to disperse water and gas, improve the solubility of oxygen in water, and promote the decomposition of organic matter by microorganisms, rely on a sliding cylinder to extend down to the depth of an aeration tank, cooperate with a plurality of limiting protrusions to limit the sliding frame, and start aeration after the position of the sliding cylinder is fixed, and the characteristics of the lower low-temperature water layer are used to improve the aeration effect, and a plurality of air inlet pipes are used to simultaneously inject gas into the air delivery pipe, thereby increasing the injection amount of aeration treatment gas.

Description

Technical Field

[0001] The invention belongs to the technical field of sewage treatment, in particular to an air lift aeration device. Background Art

[0002] Air lift aeration is a sewage treatment technology that generates a large number of bubbles by injecting air into the sewage. The rising force of the bubbles drives water circulation, increases the solubility of oxygen in water, and promotes the decomposition of organic matter by microorganisms.

[0003] A patent application with publication number CN117509930A discloses a liftable aeration device and a method of using the same, including an X-direction pipeline, a Y-direction pipeline, a longitudinal gas transmission pipeline and a Z-direction pipeline. The number of X-direction pipelines and Y-direction pipelines are two, and the X-direction pipeline and the Y-direction pipeline are connected end to end in sequence through an L-shaped connecting sleeve. This application can replace the original malfunctioning aeration device and continue to work and perform aeration treatment without stopping production or emptying the aeration tank.

[0004] The above-mentioned aeration device mainly reduces the losses caused by damage and shutdown of the aeration device by timely replacement and use when the aeration device fails. The current air lift aeration device injects gas into the water for aeration treatment, but since the injected gas is difficult to transfer quickly to the liquid, it is easy to affect the aeration effect of sewage treatment.

[0005] To this end, the present invention provides an air lift aeration device. Summary of the invention

[0006] In order to make up for the deficiencies of the prior art, at least one technical problem raised in the background technology is solved.

[0007] The technical solution adopted by the present invention to solve its technical problem is: an air lift aeration device described in the present invention includes a water lifting pipe; a plurality of diverter plates are fixedly connected to the outside of the top end of the water lifting pipe; an umbrella-shaped bell is fixedly connected to the outside of the diverter plate; an air supply pipe is installed on the inner wall of the umbrella-shaped bell; a plurality of collars are fixedly connected to the outside of the air supply pipe, and the plurality of collars are located inside the water lifting pipe; a plurality of stirring blades are fixedly connected to the outside of the plurality of collars; and a fixing frame is fixedly connected to the outside of the water lifting pipe.

[0008] Preferably, a plurality of dispersion holes are provided on the outside of the plurality of stirring blades; and a plurality of exhaust holes are provided on the outside of the bottom end of the air supply pipe.

[0009] Preferably, two sliding grooves are symmetrically arranged on the side wall of the water lifting pipe, and the outside of the water lifting pipe is slidably connected to a sliding cylinder; a sliding frame is fixedly connected to the inner wall of the sliding cylinder, and the sliding frame has a center ring, which is fixedly connected to the air pipe, and the sliding frame can slide in the sliding groove; a clamping assembly is arranged inside the water lifting pipe, and the clamping assembly is used to limit the sliding frame.

[0010] Preferably, the snap-on assembly includes a limiting protrusion and a limiting hole; a plurality of the limiting protrusions are slidably connected to the inner wall of the sliding groove through a spring, a plurality of the limiting protrusions are located at the sliding frame, and a plurality of the limiting protrusions are arranged in a longitudinal array; two of the limiting holes are respectively opened on both sides of the sliding frame, and the two limiting holes are arranged corresponding to the plurality of limiting protrusions.

[0011] Preferably, an air inlet pipe is fixedly connected to the outside of the fixing frame; a guide plate is fixedly connected to one end of the air inlet pipe near the outside of the gas supply pipe; an air cavity is opened inside the guide plate; a sealing component is arranged inside the air cavity, and the sealing component is used to control the injection of gas into the gas supply pipe.

[0012] Preferably, the blocking assembly includes a plurality of blocking rods, a No. 1 elastic member, an arc block and a No. 2 elastic member; the plurality of blocking rods are slidably connected to the inside of the guide plate; the No. 1 elastic member is sleeved on the outside of the blocking rod, and the guide plate is located between the blocking rod and the guide plate; the arc block is slidably connected to the inner wall of the gas pipe, a vent hole is provided on the outside of the arc block, and the arc block and the blocking rod are arranged correspondingly; the No. 2 elastic member is fixed between the gas pipe and the arc block.

[0013] Preferably, a material box is fixedly connected to the outside of the gas pipe; a material guide pipe is fixedly connected to the bottom end of the material box, and one end of the material guide pipe away from the material box is connected to the inside of the gas pipe; and a plug is installed at the top end of the material box.

[0014] Preferably, a support frame is fixedly connected to the inner wall of the air supply pipe; a rotating rod is rotatably connected to the middle part of the support frame; a fan blade is fixedly connected to the top end of the rotating rod; a sealing plate is fixedly connected to the bottom end of the rotating rod; a feed hole is opened on the outside of the sealing plate, and the feed hole is arranged corresponding to the material guide pipe.

[0015] Preferably, a plurality of filter boxes are fixedly connected to the inner wall of the water pumping pipe, and the plurality of filter boxes are arranged in a longitudinally staggered manner; filter screens are fixedly connected to the interior of the plurality of filter boxes; and filter holes are provided on the filter boxes and the filter screens.

[0016] Preferably, a connecting frame is fixedly connected to the outside of the bottom end of the sliding cylinder; and a spiral blade is rotatably connected to the outside of the center of the connecting frame.

[0017] The beneficial effects of the present invention are as follows:

[0018] 1. The air lift aeration device described in the present invention stirs the circulating water by means of a plurality of stirring blades, so that the oxygen in the air is accelerated to transfer into the water, thereby improving the aeration effect of sewage treatment, and utilizing a plurality of dispersion holes to disperse water and gas, thereby increasing the solubility of oxygen in water and promoting the decomposition of organic matter by microorganisms. A sliding cylinder extends down to the depth of the aeration tank, and cooperates with a plurality of limiting protrusions to limit the sliding frame, and aeration is started after the position of the sliding cylinder is fixed. The characteristics of the lower low-temperature water layer are utilized to improve the aeration effect, and a plurality of air inlet pipes are utilized to simultaneously inject gas into the air transmission pipe, thereby increasing the injection amount of aeration treatment gas.

[0019] 2. The air lift aeration device described in the present invention, by means of the arc-shaped block arranged to squeeze the blocking rod correspondingly when the air pipe slides down, the gas at the air cavity is controlled to enter the interior of the air pipe, thereby playing a role in controlling the injection of the gas at the air cavity, and the hydrogen peroxide particles inside the material box are dropped into the interior of the air pipe through the material guide pipe, and finally fall into the water to be mixed and dissolved. After the hydrogen peroxide particles are dissolved, they decompose to produce oxygen, thereby improving the mixing effect of oxygen and water. The blocking plate rotates with the fan blades, and the blocking plate can intermittently control the falling hydrogen peroxide particles. The filter box is fixed to the inside of the water lift pipe with the filter screen, thereby playing a role in filtering the circulating water, and the spiral blades are rotated with the water flow to accelerate the rapid contact and oxygenation of the sewage in the pool with the air. BRIEF DESCRIPTION OF THE DRAWINGS

[0020] The present invention will be further described below in conjunction with the accompanying drawings.

[0021] Figure 1 is a stereogram of the present invention;

[0022] Figure 2 It is a partial structural cross-sectional view of the water lifting pipe in the present invention;

[0023] Figure 3 It is a partial structural cross-sectional view of the guide plate in the present invention;

[0024] Figure 4 It is a partial structural cross-sectional view of the gas transmission pipe in the present invention;

[0025] Figure 5 It is a schematic diagram of the structure of the filter box in the present invention;

[0026] Figure 6 It is a schematic diagram of the structure of the stirring blade in the present invention.

[0027] In the figure: 1, water lifting pipe; 11, diverter plate; 12, umbrella-shaped bell; 13, air delivery pipe; 14, collar; 15, stirring blade; 16, fixing frame; 2, dispersion hole; 21, exhaust hole; 3, sliding cylinder; 31, sliding frame; 4, limiting protrusion; 41, limiting hole; 5, air inlet pipe; 51, guide plate; 52, air cavity; 6, blocking rod; 61, elastic part No. 1; 62, arc block; 63, elastic part No. 2; 7, material box; 71, material guide pipe; 72, plug; 8, support frame; 81, rotating rod; 82, fan blade; 83, blocking plate; 84, feed hole; 9, filter box; 91, filter screen; 92, connecting frame; 93, spiral blade. DETAILED DESCRIPTION

[0028] In order to make the technical means, creative features, objectives and effects achieved by the present invention easy to understand, the present invention is further explained below in conjunction with specific implementation methods.

[0029] like Figure 1 , Figure 2 and Figure 4 , Figure 6 As shown, an air lift aeration device according to an embodiment of the present invention comprises a water lift pipe 1; a plurality of diverter plates 11 are fixedly connected to the top of the water lift pipe 1; an umbrella-shaped bell jar 12 is fixedly connected to the outside of the diverter plate 11; an air delivery pipe 13 is installed on the inner wall of the umbrella-shaped bell jar 12; a plurality of collars 14 are fixedly connected to the outside of the air delivery pipe 13, and the plurality of collars 14 are located inside the water lift pipe 1; a plurality of stirring blades 15 are fixedly connected to the outside of the plurality of collars 14; a fixing frame 16 is fixedly connected to the outside of the water lift pipe 1; when the air lift aeration device is used for sewage treatment, the fixing frame 16 is fixed to the aeration tank. In the embodiment, the water-lifting pipe 1 is fixed at the middle position of the fixing frame 16 and is installed in the water. The air delivery pipe 13 is connected to an external pipe to inject air into the water. After the gas enters the interior of the water-lifting pipe 1, a large number of bubbles are generated. The bubbles drive the water body to circulate. The water flow drives the multiple stirring blades 15 on the sleeve ring 14 to rotate. The multiple stirring blades 15 stir the circulating water, so that the oxygen in the air is accelerated to transfer into the water. Finally, the water is sent to the multiple diverter plates 11 for dispersion, and is blocked by the umbrella-shaped bell cover 12 and sprinkled to the surroundings. The multiple stirring blades 15 stir the water to accelerate the speed of oxygen transfer into the water, thereby improving the aeration effect of sewage treatment.

[0030] like Figure 1 and Figure 2 , Figure 6As shown, a plurality of dispersion holes 2 are provided on the outside of the plurality of stirring blades 15; a plurality of exhaust holes 21 are provided on the outside of the bottom end of the air supply pipe 13; when the plurality of stirring blades 15 stir the circulating water, the air supply pipe 13 injects air into the inner bottom end of the water-lifting pipe 1, and part of the gas is discharged separately through the plurality of exhaust holes 21. The plurality of dispersion holes 2 are stirred synchronously with the stirring blades 15, and the plurality of dispersion holes 2 can disperse the water and the gas, so that the oxygen in the air flows into the water faster, thereby increasing the solubility of oxygen in the water and promoting the decomposition of organic matter by microorganisms.

[0031] The side wall of the water-lifting pipe 1 is symmetrically provided with two sliding grooves, and the outside of the water-lifting pipe 1 is slidably connected with a sliding cylinder 3; the inner wall of the sliding cylinder 3 is fixedly connected with a sliding frame 31, and the sliding frame 31 has a center ring, which is fixedly connected to the air pipe 13, and the sliding frame 31 can slide in the sliding groove; the interior of the water-lifting pipe 1 is provided with a clamping assembly, and the clamping assembly is used to limit the sliding frame 31; when an air-lift aeration device is used to treat sewage, the depth of some aeration tanks is set deeper. If the length of the air-lift aeration device is short, it is difficult to utilize the characteristics of the lower low-temperature water layer to improve the aeration effect. The sliding cylinder 3 slides downward, driving the sliding frame 31 and the air pipe 13 to be fixed and synchronously slide down with the sliding cylinder 3, and the sliding cylinder 3 extends down to the depth of the aeration tank. After the position of the sliding cylinder 3 is fixed by the clamping assembly, aeration begins, thereby improving the aeration effect of sewage treatment.

[0032] The clamping assembly includes a limiting protrusion 4 and a limiting hole 41; a plurality of the limiting protrusions 4 are slidably connected to the inner wall of the sliding groove through a spring, a plurality of the limiting protrusions 4 are located at the sliding frame 31, and a plurality of the limiting protrusions 4 are arranged in a longitudinal array; two of the limiting holes 41 are respectively opened on both sides of the sliding frame 31; when the sliding cylinder 3 slides down to the deep end of the aeration tank, the sliding frame 31 is used to slide on the inner wall of the water pumping pipe 1, and the sliding frame 31 intermittently squeezes a group of limiting protrusions 4 according to the sliding depth, and the limiting protrusions 4 have an arc-shaped surface. This group of limiting protrusions 4 is subjected to spring compression and contraction force. After the sliding cylinder 3 slides down to the deep end of the aeration tank, the spring squeezes a plurality of limiting protrusions 4 and is correspondingly clamped in the limiting holes 41 on both sides of the sliding frame 31, which plays a role in clamping and limiting the position of the sliding cylinder 3.

[0033] like Figures 1 to 3As shown, an air inlet pipe 5 is fixedly connected to the outside of the fixing frame 16; a guide plate 51 is fixedly connected to one end of the air inlet pipe 5 near the outside of the air supply pipe 13; an air cavity 52 is opened inside the guide plate 51; a plugging component is arranged inside the air cavity 52, and the plugging component is used to control the injection of gas into the air supply pipe 13; when injecting gas into the water for aeration, it is difficult to meet the needs of a deeper aeration tank by injecting gas only through the air supply pipe 13, and two air inlet pipes 5 are symmetrically installed on both sides of the fixing frame 16, and the two air inlet pipes 5 are respectively connected to external pipelines to inject gas synchronously, and the gas enters the air cavity 52 inside the guide plate 51 through the air inlet pipe 5, and cooperates with the plugging component to control the discharge of the air cavity 52 into the air supply pipe 13, thereby playing the role of multi-port gas injection and increasing the injection amount of aeration treatment gas.

[0034] The blocking assembly includes a plurality of blocking rods 6, a No. 1 elastic member 61, an arc block 62 and a No. 2 elastic member 63; the plurality of blocking rods 6 are slidably connected to the inside of the guide plate 51; the No. 1 elastic member 61 is sleeved on the outside of the blocking rod 6, and the guide plate 51 is located between the blocking rod 6 and the guide plate 51; the arc block 62 is slidably connected to the inner wall of the gas pipe 13, and a vent is provided on the outside of the arc block 62; the No. 2 elastic member 63 is fixedly connected between the gas pipe 13 and the arc block 62; when the gas at the air cavity 52 is delivered to the inside of the gas pipe 13, the sliding cylinder 3 slides down to drive the gas pipe 13 to slide down synchronously, When the position of the arc block 62 corresponds to the blocking rod 6, the No. 2 elastic member 63 squeezes the arc block 62 to slide inside the gas pipe 13, so that the arc block 62 corresponds to the squeezing of the blocking rod 6 to slide inside the guide plate 51, and the No. 1 elastic member 61 elastically contracts, and the gas at the air cavity 52 enters the interior of the gas pipe 13 through the air hole of the arc block 62, increasing the air intake inside the gas pipe 13 and improving the aeration effect. At the same time, when the gas pipe 13 is in the top position, the arc block 62 can be squeezed by the guide plate 51 and temporarily stored in the gas pipe 13, and the No. 2 elastic member 63 elastically contracts, which plays a role in switching between single-port and multi-port gas injection.

[0035] like Figures 1 to 4 As shown, the outside of the gas delivery pipe 13 is fixedly connected with a material box 7; the bottom end of the material box 7 is fixedly connected with a material guide pipe 71, and the end of the material guide pipe 71 away from the material box 7 is connected to the inside of the gas delivery pipe 13; the top of the material box 7 is installed with a plug 72; when the air lift aeration device is used for aeration, the plug 72 at the top of the material box 7 is first opened, and hydrogen peroxide particles are added to the inside of the material box 7. During the aeration process, the hydrogen peroxide particles in the material box 7 fall into the gas delivery pipe 13 through the material guide pipe 71, and finally fall into the water to mix and dissolve. After the hydrogen peroxide particles are dissolved, they decompose to produce oxygen, thereby improving the mixing effect of oxygen and water.

[0036] The inner wall of the gas pipe 13 is fixedly connected to a support frame 8; a rotating rod 81 is rotatably connected to the middle part of the support frame 8; a fan blade 82 is fixedly connected to the top of the rotating rod 81; a sealing plate 83 is fixedly connected to the bottom end of the rotating rod 81; a discharge hole 84 is opened on the outside of the sealing plate 83, and the discharge hole 84 is arranged corresponding to the guide pipe 71; when hydrogen peroxide particles are added to the water, the gas injected into the gas pipe 13 is used to drive the rotating rod 81 on the support frame 8 to cooperate with the fan blade 82 to rotate, and the fan blade 82 rotates during the process of synchronously driving the sealing plate 83 at the bottom of the rotating rod 81 to rotate, and the guide pipe 71 is controlled to be blocked by the discharge hole 84 opened on the sealing plate 83, so that the hydrogen peroxide particles inside the material box 7 can fall intermittently, so that the hydrogen peroxide particles that fall each time can be fully dissolved and dispersed.

[0037] like Figure 1 , Figure 2 and Figure 5 As shown, the inner wall of the water pumping pipe 1 is fixedly connected with a plurality of filter boxes 9, and the plurality of filter boxes 9 are arranged in a longitudinal staggered manner; the interior of the plurality of filter boxes 9 is fixedly connected with a filter screen 91; the filter boxes 9 and the filter screen 91 are both provided with filter holes; when gas is injected into the water inside the water pumping pipe 1 for circulation, the plurality of filter boxes 9 are fixed on the inner wall of the water pumping pipe 1, and the plurality of filter boxes 9 are arranged in a longitudinal staggered manner, so as to filter the circulating water, and temporarily store some of the filtered impurities in the gap between the filter box 9 and the filter screen 91, and rely on the filter holes of the filter box 9 and the filter screen 91 to filter the circulating water.

[0038] like Figure 1 and Figure 2 As shown, a connecting frame 92 is fixedly connected to the outside of the bottom end of the sliding cylinder 3; a spiral blade 93 is rotatably connected to the outside of the center of the connecting frame 92; when gas is injected into the bottom of the sliding cylinder 3 for circulation aeration, the spiral blade 93 is installed at the bottom end of the sliding cylinder 3 using the connecting frame 92, and the water entering the sliding cylinder 3 can drive the spiral blade 93 to rotate, and the spiral blade 93 can disperse the circulating water, thereby accelerating the rapid contact and oxygenation of the sewage in the pool with the air.

[0039] Working process: When using the air lift aeration device for sewage treatment, the fixing frame 16 is fixed in the aeration tank, the water lifting pipe 1 is fixed in the middle of the fixing frame 16 and installed in the water, and the air pipe 13 is connected to the external pipeline to inject air into the water. After the gas enters the interior of the water lifting pipe 1, a large number of bubbles are generated. The bubbles drive the water body to circulate, and the water flow drives the multiple stirring blades 15 on the collar 14 to rotate. The multiple stirring blades 15 stir the circulating water, so that the oxygen in the air is accelerated to transfer into the water, and finally the water is sent to the multiple diverter plates 11 for dispersion and is covered by the umbrella bell 1. 2 is blocked and sprinkled around, and multiple stirring blades 15 are used to stir the water, accelerating the speed of oxygen transfer into the water, thereby improving the aeration effect of sewage treatment; when the multiple stirring blades 15 stir the circulating water, the air pipe 13 injects air into the inner bottom end of the water lifting pipe 1, and part of the gas is discharged separately from the multiple exhaust holes 21. The multiple dispersion holes 2 are used to stir synchronously with the stirring blades 15, and the multiple dispersion holes 2 can disperse the water and gas, so that the oxygen in the air flows into the water faster, increasing the solubility of oxygen in the water, and promoting the decomposition of organic matter by microorganisms;

[0040] When an airlift aeration device is used to treat sewage, the depth of some aeration tanks is set to be deeper. If the length of the airlift aeration device is shorter, it is difficult to utilize the characteristics of the lower low-temperature water layer to improve the aeration effect. The sliding cylinder 3 slides downward to drive the sliding frame 31 and the air pipe 13 to be fixed and synchronously slide down with the sliding cylinder 3. The sliding cylinder 3 extends down to the depth of the aeration tank. After the position of the sliding cylinder 3 is fixed by a clamping assembly, aeration is started, thereby improving the aeration effect of sewage treatment; when the sliding cylinder 3 slides down to the depth of the aeration tank, the sliding frame 31 is used to slide on the inner wall of the water lifting pipe 1. The sliding frame 31 intermittently squeezes a group of limiting protrusions 4 according to the sliding depth. The limiting protrusions 4 have an arc surface. The group of limiting protrusions 4 squeeze and contract the spring. After the sliding cylinder 3 slides down to the depth of the aeration tank, the spring squeezes multiple limiting protrusions 4 to be correspondingly clamped in the limiting holes 41 on both sides of the sliding frame 31, which plays a role in clamping and limiting the position of the sliding cylinder 3;

[0041] When injecting gas into the water for aeration, it is difficult to meet the needs of a deeper aeration tank by injecting gas only through the gas pipe 13. Two air inlet pipes 5 are symmetrically installed on both sides of the fixing frame 16. The two air inlet pipes 5 are connected to external pipelines to inject gas synchronously. The gas enters the air cavity 52 inside the guide plate 51 through the air inlet pipe 5. The gas is discharged into the air pipe 13 in cooperation with the blocking component at the air cavity 52, which plays the role of multiple gas injections and increases the injection amount of aeration treatment gas. When the gas at the air cavity 52 is delivered to the inside of the gas pipe 13, the sliding cylinder 3 slides down to drive the gas pipe 13 to slide down synchronously. When corresponding to the position of the blocking rod 6, the second elastic member 63 squeezes the arc block 62 to slide inside the gas pipe 13, so that the arc block 62 corresponds to the squeezed blocking rod 6 and slides inside the guide plate 51, and the first elastic member 61 elastically contracts, and the gas at the air cavity 52 enters the inside of the gas pipe 13 through the vent hole of the arc block 62, increasing the air intake inside the gas pipe 13 and improving the aeration effect. At the same time, when the gas pipe 13 is at the top position, the arc block 62 can be squeezed by the guide plate 51 and temporarily stored inside the gas pipe 13, and the second elastic member 63 elastically contracts, which plays a role in switching between single-port and multi-port gas injection;

[0042] When the air lift aeration device is used for aeration, the plug 72 at the top of the material box 7 is first opened, and hydrogen peroxide particles are added to the inside of the material box 7. During the aeration process, the hydrogen peroxide particles in the material box 7 fall into the gas pipe 13 through the guide pipe 71, and finally fall into the water for mixing and dissolving. After the hydrogen peroxide particles are dissolved, they decompose to produce oxygen, thereby improving the mixing effect of oxygen and water. When hydrogen peroxide particles are added to the water, the gas injected into the gas pipe 13 is used to drive the rotating rod 81 on the support frame 8 to rotate in coordination with the fan blades 82. During the rotation of the fan blades 82, the sealing plate 83 at the bottom of the rotating rod 81 is synchronously driven to rotate, and the guide pipe 71 is controlled and blocked by the material discharge hole 84 provided on the sealing plate 83, so that the hydrogen peroxide particles in the material box 7 can intermittently fall, so that the hydrogen peroxide particles falling each time can be fully dissolved and dispersed.

[0043] When the gas is injected into the water inside the water pumping pipe 1 for circulation, a plurality of filter boxes 9 are fixed on the inner wall of the water pumping pipe 1, and the plurality of filter boxes 9 are arranged in a longitudinal staggered manner, so as to filter the circulating water and temporarily store some of the filtered impurities in the gap between the filter box 9 and the filter screen 91, and rely on the filter holes of the filter box 9 and the filter screen 91 to filter the circulating water;

[0044] When gas is injected into the bottom of the sliding cylinder 3 for circulating aeration, the spiral blade 93 is installed at the bottom end of the sliding cylinder 3 using the connecting frame 92. The water entering the sliding cylinder 3 can drive the spiral blade 93 to rotate. The spiral blade 93 can disperse the circulating water, thereby accelerating the sewage in the pool to quickly contact with the air for oxygenation.

[0045] The above shows and describes the basic principles, main features and advantages of the present invention. It should be understood by those skilled in the art that the present invention is not limited to the above embodiments. The above embodiments and descriptions are only for explaining the principles of the present invention. Without departing from the spirit and scope of the present invention, the present invention may have various changes and improvements, which fall within the scope of the present invention. The scope of protection of the present invention is defined by the attached claims and their equivalents.

Claims

1. An air lift aeration device, characterized in that: The invention comprises a water lifting pipe (1); a plurality of flow dividers (11) are fixedly connected to the outside of the top end of the water lifting pipe (1); an umbrella-shaped bell cover (12) is fixedly connected to the outside of the flow divider (11); an air supply pipe (13) is installed on the inner wall of the umbrella-shaped bell cover (12); a plurality of collars (14) are rotatably connected to the outside of the air supply pipe (13), and the plurality of collars (14) are located inside the water lifting pipe (1); a plurality of stirring blades (15) are fixedly connected to the outside of the plurality of collars (14); and a fixing frame (16) is fixedly connected to the outside of the water lifting pipe (1); The side wall of the water lift pipe (1) is symmetrically provided with two sliding grooves, and the outside of the water lift pipe (1) is slidably connected to a sliding cylinder (3); the inner wall of the sliding cylinder (3) is fixedly connected to a sliding frame (31), the sliding frame (31) has a center ring, the center ring is fixedly connected to the air delivery pipe (13), and the sliding frame (31) can slide in the sliding groove; the inside of the water lift pipe (1) is provided with a clamping assembly, and the clamping assembly is used to limit the position of the sliding frame (31); The clamping assembly comprises a limiting protrusion (4) and a limiting hole (41); a plurality of the limiting protrusions (4) are slidably connected to the inner wall of the sliding groove via a spring, the plurality of limiting protrusions (4) are located at the sliding frame (31), and the plurality of limiting protrusions (4) are arranged in a longitudinal array; two limiting holes (41) are respectively provided on both sides of the sliding frame (31), and the two limiting holes (41) are arranged corresponding to the plurality of limiting protrusions (4); An air intake pipe (5) is fixedly connected to the outside of the fixing frame (16); a guide plate (51) is fixedly connected to an outer end of the air intake pipe (5) close to the air supply pipe (13); an air cavity (52) is provided inside the guide plate (51); a blocking component is provided inside the air cavity (52), and the blocking component is used to control the injection of gas into the air supply pipe (13); The blocking assembly comprises a plurality of blocking rods (6), a first elastic member (61), an arc block (62) and a second elastic member (63); the plurality of blocking rods (6) are slidably connected to the inside of the guide plate (51); the first elastic member (61) is sleeved on the outside of the blocking rod (6), and the first elastic member (61) is located between the blocking rod (6) and the guide plate (51); the arc block (62) is slidably connected to the inner wall of the gas pipeline (13), the arc block (62) is provided with a vent hole, and the arc block (62) and the blocking rod (6) are arranged correspondingly; the second elastic member (63) is fixedly connected between the gas pipeline (13) and the arc block (62); When the gas in the air cavity (52) is delivered to the inside of the gas delivery pipe (13), the sliding cylinder (3) moves downward to drive the gas delivery pipe (13) to move downward synchronously. When the positions of the arc block (62) and the blocking rod (6) correspond, the second elastic member (63) squeezes the arc block (62) to slide inside the gas delivery pipe (13), so that the arc block (62) corresponds to the squeezing of the blocking rod (6) to slide inside the guide plate (51). The first elastic member (61) contracts elastically, and the gas in the air cavity (52) enters the inside of the gas delivery pipe (13) through the vent hole of the arc block (62), thereby increasing the air intake inside the gas delivery pipe (13) and improving the aeration effect. At the same time, when the gas delivery pipe (13) is at the top position, the arc block (62) can be squeezed by the guide plate (51) and temporarily stored inside the gas delivery pipe (13). The second elastic member (63) contracts elastically, thereby playing a role in switching between single-port and multi-port gas injection. The outside of the gas delivery pipe (13) is fixedly connected to a material box (7); the bottom end of the material box (7) is fixedly connected to a material guide pipe (71), and one end of the material guide pipe (71) away from the material box (7) is connected to the inside of the gas delivery pipe (13), and hydrogen peroxide particles are provided in the material box (7).

2. An air lift aeration device according to claim 1, characterized in that: A plurality of dispersion holes (2) are formed on the outside of the plurality of stirring blades (15); and a plurality of exhaust holes (21) are formed on the outside of the bottom end of the air delivery pipe (13).

3. An air lift aeration device according to claim 1, characterized in that: A plug (72) is installed at the top end of the material box (7).

4. An air lift aeration device according to claim 3, characterized in that: A support frame (8) is fixedly connected to the inner wall of the gas delivery pipe (13); a rotating rod (81) is rotatably connected to the middle part of the support frame (8); a fan blade (82) is fixedly connected to the top end of the rotating rod (81); a sealing plate (83) is fixedly connected to the bottom end of the rotating rod (81); a material discharge hole (84) is provided on the outside of the sealing plate (83), and the material discharge hole (84) is arranged corresponding to the material guide pipe (71).

5. The air lift aeration device according to claim 1, characterized in that: A plurality of filter boxes (9) are fixedly connected to the inner wall of the water pumping pipe (1), and the plurality of filter boxes (9) are arranged in a longitudinally staggered manner; a filter screen (91) is fixedly connected to the interior of the plurality of filter boxes (9); and both the filter boxes (9) and the filter screen (91) are provided with filter holes.

6. An air lift aeration device according to claim 1, characterized in that: A connecting frame (92) is fixedly connected to the outside of the bottom end of the sliding cylinder (3); a spiral blade (93) is rotatably connected to the outside of the center of the connecting frame (92).

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