Aeration grid structure based on sewage treatment

Abstract

The invention discloses an aeration grid structure based on sewage treatment, and particularly relates to sewage treatment equipment, the aeration grid structure comprises a sewage flow channel, the sewage flow channel comprises a clean flow groove and a sewage flow groove, and the sewage flow groove is provided with an extension part extending into the clean flow groove; the inner inflow grating comprises a rotary grating movably arranged on the extension part, an aeration pipe is arranged on the rotary grating, and the aeration pipe conveys gas into the rotary grating so as to guide liquid inside and outside the rotary grating to flow. The aeration pipe performs continuous aeration in sewage so as to promote liquid inside and outside the rotary grating to flow and stir particles between the outer layer of the inner inflow grating and the extension part, so that the particles are prevented from sinking and accumulating, the filtering effect of the rotary grating is enhanced, and microbial decomposition and sewage conversion can be promoted in an aeration oxygenation manner.

Description

Technical Field

[0001] The invention relates to the technical field of sewage treatment, and in particular to an aeration grid structure used for sewage treatment. Background Art

[0002] Sewage treatment is the process of introducing sewage into a water body for purification and discharging it after the water quality meets the requirements. In the first stage of sewage treatment, screens are usually used to intercept and remove particles in the sewage.

[0003] According to patent number CN217350932U, publication (announcement) date: 2022-09-02, an aeration grille is disclosed, the aeration grille includes an aeration and deodorization unit and a filtration and interception unit, the filtration and interception unit is connected to the aeration and deodorization unit and is located above it; the aeration and deodorization unit includes an aeration plate and an aeration plate support structure, the aeration plate is installed in the aeration plate support structure, the aeration plate is used to connect with the aeration device to aerate and oxygenate the sewage at the bottom, and oxidize and decompose the irritating gas in the sewage; the filtration and interception unit includes a grille mesh plate, and the grille mesh plate has a plurality of mesh holes. The aeration grille is provided with an aeration and deodorization unit, which can supplement oxygen in the sewage by connecting to an external aeration device, promote the oxidative decomposition of irritating gases such as NH3 and H2S, reduce the odor concentration inside the grille treatment unit, reduce the generation of odor, and create a cleaner and more sanitary production environment for operating workers.

[0004] In the prior art including the above-mentioned patent, the inner flow grille has the advantages of compact structure, efficient filtration and easy maintenance. It is one of the equipment commonly used in sewage treatment. The water inlet method of the inner flow grille enters the inner flow grille through the middle and then is filtered along the grille for diversion. When treating sewage with a large amount of suspended particles, the suspended particles are easy to flow out along the grille and stay at the junction of the inner flow grille and the sewage, which requires manual cleaning. Summary of the invention

[0005] The purpose of the present invention is to provide an aeration grid structure for sewage treatment, aiming to solve the above problems.

[0006] In order to achieve the above object, the present invention provides the following technical solution: an aeration grid structure for sewage treatment, comprising: A sewage flow channel, comprising a clean flow channel and a sewage flow channel, wherein the sewage flow channel is provided with an extension portion extending into the clean flow channel; The inner inlet grid comprises a revolving grid movably arranged on the extension part, and an aeration pipe is arranged on the revolving grid. The aeration pipe supplies air into the revolving grid to guide the liquid flow inside and outside the revolving grid.

[0007] Preferably, a filter grid is provided on the rotary grid, and an air outlet portion connected to the aeration pipe is provided on the filter grid, and the air outlet portion is immersed in the liquid to discharge air as the filter grid is immersed in the liquid.

[0008] Preferably, the aeration pipe is provided with an air outlet, and a limiting head for sealing is movably provided on the air outlet, and the limiting head is immersed in liquid and floats up to open the air outlet.

[0009] Preferably, the limiting head is provided with an air binding channel, and the air binding channel is switched between the following two positions: First station: the limiting head moves to the side to open the air channel; Second working station: the limiting head moves to the bottom surface to block the air channel.

[0010] Preferably, a matching float block is symmetrically and movably arranged in the air binding channel on the limiting head, and the matching float block floats up and closes when the limiting head is in a vertical state, and floats up and away when the limiting head is in a horizontal state.

[0011] Preferably, an air-filling unit is further included, which includes an air-filling pipe arranged on the top of the revolving grille, and the air-filling pipe fills the air outlet.

[0012] Preferably, the air outlet is provided with a limiting head for sealing, the inflation pipe is provided with an inflation cover which is covered on the rotary grille, and the limiting head slides along the limiting groove on the inflation cover to open the air outlet.

[0013] Preferably, a cleaning assembly is also included, which includes a water outlet pipe and a sewage trough arranged on both sides of the rotary grille.

[0014] Preferably, a temporary storage inclined plate is provided on the rotary grille, and the temporary storage inclined plate temporarily accumulates the liquid sprayed from the water outlet pipe to drive the air outlet part to discharge air.

[0015] Preferably, a temporary storage inclined plate is provided on the rotary grille, and the air outlet portion discharges air along the temporary storage inclined plate to limit the liquid from gathering along the water outlet direction of the rotary grille.

[0016] In the above technical scheme, the present invention provides an aeration grid structure for sewage treatment, which has the following beneficial effects: continuous aeration is performed in the sewage through the aeration pipe to promote the flow of liquid inside and outside the rotary grid, so as to stir the particles between the outer layer and the extension of the inner inlet grid, thereby avoiding the sinking and accumulation of particles, enhancing the filtering effect of the rotary grid, and promoting microbial decomposition and conversion of waste through aeration and oxygenation. BRIEF DESCRIPTION OF THE DRAWINGS

[0017] In order to more clearly illustrate the embodiments of the present application or the technical solutions in the prior art, the drawings required for use in the embodiments will be briefly introduced below. Obviously, the drawings described below are only some embodiments recorded in the present invention. For ordinary technicians in this field, other drawings can also be obtained based on these drawings.

[0018] Figure 1 An overall schematic diagram provided for an embodiment of the present invention; Figure 2 An overall explosion diagram provided for an embodiment of the present invention; Figure 3 A schematic diagram of the structure of a rotary grille and a cleaning assembly provided in an embodiment of the present invention; Figure 4 An exploded schematic diagram of a rotary grille and a cleaning assembly provided in an embodiment of the present invention; Figure 5 for Figure 4 The enlarged schematic diagram at A in the middle; Figure 6 A schematic cross-sectional view of a rotary grille provided in an embodiment of the present invention; Figure 7 for Figure 6 The enlarged schematic diagram of point B in the middle; Figure 8 for Figure 6 The enlarged schematic diagram at C in the middle; Fig. 9 for Figure 6 The enlarged schematic diagram at D in the middle; Fig.10 for Figure 6 The enlarged schematic diagram at E in the middle; Fig.11 A schematic diagram of water flow in a rotary grid provided in an embodiment of the present invention.

[0019] Description of reference numerals: 1. Sewage flow channel; 11. Sewage flow trough; 12. Extension; 13. Clean flow trough; 2. Inner inlet grille; 20. Outer cover; 201. Closed cover; 21. Rotating grille; 211. Filter grille; 212. Temporary storage inclined plate; 22. Support drive frame; 221. Power frame; 222. Auxiliary frame; 223. Bottom support frame; 23. Inflatable pipe; 231. Spring plate; 232. Restriction groove; 233. Covering elastic membrane; 3. Cleaning component; 31. Water outlet pipe; 32. Sewage trough; 4. Aeration pipe; 41. Diverter pipe; 42. Air outlet; 43. Restriction head; 431. Air bundle duct; 44. Floating block; 441. First elastic member; 45. Blocking head. DETAILED DESCRIPTION

[0020] In order to make the purpose, technical solution and advantages of the embodiments of the present disclosure clearer, the technical solution of the embodiments of the present disclosure will be clearly and completely described below in conjunction with the drawings of the embodiments of the present disclosure. Obviously, the described embodiments are part of the embodiments of the present disclosure, not all of the embodiments. Based on the described embodiments of the present disclosure, all other embodiments obtained by ordinary technicians in this field without creative work are within the scope of protection of the present disclosure.

[0021] like Figure 1-11 As shown, an aeration grid structure for sewage treatment includes: The sewage flow channel 1 comprises a clean flow channel 13 and a sewage flow channel 11, and the sewage flow channel 11 is provided with an extension portion 12 extending into the clean flow channel 13; The inner inlet grid 2 comprises a revolving grid 21 movably arranged on the extension portion 12 . An aeration pipe 4 is arranged on the revolving grid 21 . The aeration pipe 4 delivers air into the revolving grid 21 to guide the flow of liquid inside and outside the revolving grid 21 .

[0022] Specifically, the sewage flow channel 1 includes a clean flow channel 13 and a sewage flow channel 11 connected to each other. Figure 2 The extension 12 is the junction of the inner inlet grid 2 and the sewage. The rotary grid 21 is a ring-shaped circular rotary structure. Figure 3 For reference, in counterclockwise rotation, during purification, when the sewage in the sewage flow channel 11 flows along the rotary grille 21, the two sides of the extension portion 12 flow through the rotary grille 21 to enter the clean flow channel 13 to complete the interception of sewage particles.

[0023] In the above technical solution, while filtering the sewage, continuous aeration is performed in the sewage through the aeration pipe 4 to promote the flow of liquid inside and outside the rotary grille 21, so as to stir the particles between the outer layer of the inner inlet grille 2 and the extension portion 12, so that the particles do not sink, but move with the flow of water, thereby avoiding the particles from sinking and accumulating, making the particles suspended and filtered by the rotary grille 21, thereby enhancing the filtering effect of the rotary grille 21, and through aeration and oxygenation, it can promote microbial decomposition and conversion of waste.

[0024] Furthermore, an outer cover 20 is provided on the sewage flow trough 11, and a support drive frame 22 for supporting the top of the rotary grille 21 is provided on the outer cover 20. The sewage flow trough 11 is also provided with a bottom support frame 223 for supporting the bottom of the rotary grille 21. The support drive frame 22 is connected to the output end of the motor to drive the rotary grille 21 to rotate for continuous filtering.

[0025] As an embodiment provided by the present invention, the rotary grille 21 is formed by hingedly connecting a plurality of filter grilles 211, the filter grilles 211 are used to filter and adsorb particles in sewage, and an air outlet 42 connected to the aeration pipe 4 is provided on the filter grille 211. As the rotary grille 21 rotates, the air outlet 42 is immersed in the liquid (sewage) along with the filter grille 211, and the air outlet 42 starts to emit air to stir the water flow through aeration, while the air outlet 42 on the filter grille 211 that is not immersed in the liquid does not emit air to maintain the air pressure in the aeration pipe 4 to avoid waste.

[0026] Furthermore, a plurality of shunt pipes 41 are provided on the aeration pipe 4 . The shunt pipes 41 correspond to the filter grids 211 one by one, and the air outlet 42 is communicated with the shunt pipes 41 .

[0027] As an embodiment provided by the present invention, an air outlet 42 is provided on the aeration pipe 4, and a limiting head 43 for sealing is movably provided on the air outlet 42, a first elastic member 441 is symmetrically provided between the limiting head 43 and the air outlet 42, a symmetrical air outlet pipe is provided on the air outlet 42, and a corresponding hole is opened at one end of the limiting head 43 facing the air outlet 42, when the limiting head 43 is not affected by the buoyancy of the liquid, the first elastic member 441 pulls the limiting head 43 to drive the hole to cover the air outlet pipe for sealing, and when the limiting head 43 is immersed in the liquid, the limiting head 43 is affected by the buoyancy of the liquid and moves to drive the hole and the air outlet pipe to be staggered to open the air outlet 42.

[0028] A plugging head 45 is fixedly connected in the hole via a second elastic member, and the plugging head 45 is used to plug the air outlet pipe.

[0029] Furthermore, the limiting head 43 moves with the rotating grille 21 and is in two position change states of the extension portion 12. The first state is when the limiting head 43 is at the side of the extension portion 12, the limiting head 43 floats up with the buoyancy and the restriction of the first elastic member 441 (such as Figure 8 As shown in the figure, at this time, one of the holes on the limiting head 43 rotates with the corresponding air outlet pipe as a fulcrum to open an air outlet pipe to achieve air outlet; the second state is when the limiting head 43 is at the bottom of the extension part 12, at this time the limiting head 43 directly floats up, so that the two holes and the air outlet pipe are separated to directly release air.

[0030] As an embodiment provided by the present invention, an air binding channel 431 is provided on the limiting head 43, and the air binding channel 431 is switched between the following two positions: First station: the limiting head 43 moves to the side to open the air channel 431. At this time, with the limiting head 43 in the first state, an air outlet pipe is opened to transport air into the air channel 431. After the air channel 431 is gathered, the ejected bubbles have a long range and a small area to correspond to the water flow to the rotary grille 21. Second station: the limiting head 43 moves to the bottom surface to block the air bundle 431. At this time, the limiting head 43 is in the second state. At this time, the limiting head 43 directly floats up, so that the two holes and the air outlet pipe are separated. At this time, the airflow ejected from the air outlet pipe will float up along both sides of the limiting head 43 (such as Fig.10 as shown) to spread the area of ​​the ejected bubbles and increase the agitated water flow.

[0031] Furthermore, movable grooves are symmetrically opened in the air binding channel 431 on the limiting head 43, and a matching float block 44 is movably arranged in the movable groove. When the limiting head 43 is in the second state (i.e., the vertical state), the matching float block 44 slides up and closes along the movable groove to block the air binding channel 431 to achieve the second working position state. When the limiting head 43 is in the first state (i.e., the horizontal state), the two matching float blocks 44 both float up, one of the matching float blocks 44 slides into the movable groove, and the other matching float block 44 slides out of the movable groove, thereby driving the two matching float blocks 44 away to open the air binding channel 431.

[0032] As an embodiment provided by the present invention, it also includes an inflation unit, which includes an inflation pipe 23 arranged on the top of the rotating grille 21, the inflation pipe 23 is arranged in the supporting driving frame 22, and the inflation pipe 23 is connected to an inflation source (the inflation source can be a gas compressor or a large-scale blower, etc.) to inflate the air outlet 42.

[0033] Furthermore, a limiting head 43 for blocking is provided on the air outlet portion 42, and an air charging cover which is covered on the rotating grille 21 is provided on the air charging pipe 23. The air charging cover is composed of symmetrical spring plates 231. Both sides of the two spring plates 231 are covered with a covering elastic membrane 233. A limiting groove 232 is provided on one of the spring plates 231. When the limiting head 43 moves into the air charging cover along with the rotating grille 21, the limiting head 43 slides along with the limiting groove 232 on the spring plate 231, and the limiting head 43 is pulled to open the two air outlet pipes (such as Figure 7 As shown in the figure, a sealed cover 201 is provided on the outer cover 20, and the two ends of the spring plate 231, the sealed cover 201 and the covering elastic membrane 233 will fit the filter grille 211 to form a closed space. At this time, the gas output by the inflation pipe 23 first flows toward the filter grille 211 and then rebounds along the sealed cover 201 into the open air outlet pipe for inflation. When the gas passes through the filter grille 211, it impacts the attached dirt, which is convenient for subsequent cleaning operations.

[0034] Furthermore, the support driving frame 22 includes a power frame 221 and an auxiliary frame 222, and the spring plate 231 is set in the gap between the power frame 221 and the auxiliary frame 222. The power frame 221 extends out of the outer cover 20, and the auxiliary frame 222 is rotatably connected to the inflation tube 23 and rotates with the power frame 221.

[0035] As an embodiment provided by the present invention, it also includes a cleaning component 3, which includes a water outlet pipe 31 and a sewage trough 32 respectively arranged on both sides of the rotary grille 21. The water outlet pipe 31 continuously discharges water to the sewage trough 32 to flush the passing rotary grille 21, and flush the stains attached to the rotary grille 21 into the sewage trough 32, thereby cleaning the stains in the sewage.

[0036] Furthermore, a temporary storage inclined plate 212 is provided on the rotary grille 21. When the water outlet pipe 31 sprays liquid to clean the rotary grille 21, part of the water will be temporarily accumulated along the temporary storage inclined plate 212. At this time, the limiting head 43 on the rotary grille 21 floats to drive the air outlet part 42 to discharge air. The sprayed gas carries away the stains and liquid on the temporary storage inclined plate 212 to assist cleaning and increase the cleaning ability.

[0037] As the best embodiment provided by the present invention, a temporary storage inclined plate 212 is arranged on the filter grid 211 on the rotary grid 21, and the gas outlet 42 discharges gas along the temporary storage inclined plate 212. The rotary grid 21 includes a water inlet and a water outlet (with Fig.11 As shown in FIG. 1 , when the limiting head 43 on the water inlet side releases air, it moves obliquely upward (with a pressure of 200 psi) under the guidance of the temporary storage inclined plate 212. Fig.11 As a reference, the limiting head 43 at the bottom of the water outlet moves, and the bubbles at the output end of the limiting head 43 float up. When the limiting head 43 on one side of the water outlet releases air, it moves obliquely downward under the guidance of the temporary storage inclined plate 212 and then floats up to limit the liquid from converging along the water outlet direction of the rotary grille 21, that is, flowing clockwise, so as to concentrate the filtration at the water outlet, thereby increasing the water flow rate filtered at the water outlet.

[0038] When purifying sewage, the sewage in the sewage flow trough 11 flows along the extension part 12 to the rotary grille 21 for filtration. After the particles are adsorbed by the filter grille 211, the purified water is discharged along the clean flow trough 13. During the purification process, the two ends of the spring plate 231, the sealing cover 201 and the covering elastic membrane 233 will fit the filter grille 211 to form a closed space, and the limiting head 43 is pulled through the limiting groove 232 to open the two outlet pipes and inflate the aeration pipe 4. At this time, the return water submerged in the water The limiting head 43 on the rotary grille 21 will discharge air in two states, limiting the liquid from gathering along the water outlet direction of the rotary grille 21. At the same time, the outlet pipe 31 continues to discharge water to the drain tank 32 to flush the passing rotary grille 21. During the flushing process, part of the water will temporarily accumulate along the temporary storage inclined plate 212. At this time, the limiting head 43 on the rotary grille 21 floats to drive the air outlet part 42 to discharge air. The ejected gas carries away the stains and liquid on the temporary storage inclined plate 212, completing the cleaning and filtration cycle of the attachments.

[0039] The above description is only by way of illustration of certain exemplary embodiments of the present invention. It is undoubted that those skilled in the art can modify the described embodiments in various ways without departing from the spirit and scope of the present invention. Therefore, the above drawings and descriptions are illustrative in nature and should not be construed as limiting the scope of protection of the claims of the present invention.

Claims

1. An aeration grid structure for sewage treatment, characterized in that: include: A sewage flow channel (1), comprising a clean flow groove (13) and a sewage flow groove (11), wherein the sewage flow groove (11) is provided with an extension portion (12) extending into the clean flow groove (13); The inner inlet grid (2) comprises a revolving grid (21) movably arranged on the extension portion (12), wherein an aeration pipe (4) is arranged on the revolving grid (21), and the aeration pipe (4) supplies air into the revolving grid (21) to guide the flow of liquid inside and outside the revolving grid (21).

2. The aeration grid structure for sewage treatment according to claim 1, characterized in that: The rotary grille (21) is provided with a filter grille (211), and the filter grille (211) is provided with an air outlet (42) connected to the aeration pipe (4), and the air outlet (42) is immersed in liquid along with the filter grille (211) to discharge air.

3. The aeration grid structure for sewage treatment according to claim 1, characterized in that: The aeration pipe (4) is provided with an air outlet (42), and a limiting head (43) for blocking is movably provided on the air outlet (42), and the limiting head (43) is immersed in liquid and floats up to open the air outlet (42).

4. The aeration grid structure for sewage treatment according to claim 3, characterized in that: The limiting head (43) is provided with an air binding channel (431), and the air binding channel (431) is switched between the following two working positions: First workstation: the limiting head (43) moves to the side to open the air binding channel (431); Second workstation: the limiting head (43) moves to the bottom surface to block the air binding channel (431).

5. The aeration grid structure for sewage treatment according to claim 3, characterized in that: A floating block (44) is symmetrically and movably arranged in the air binding channel (431) on the limiting head (43); the floating block (44) floats up and closes when the limiting head (43) is in a vertical state, and floats up and away when the limiting head (43) is in a horizontal state.

6. The aeration grid structure for sewage treatment according to claim 2, characterized in that: It also includes an air-filling unit, which includes an air-filling pipe (23) arranged on the top of the rotary grille (21), and the air-filling pipe (23) fills the air outlet (42).

7. The aeration grid structure for sewage treatment according to claim 6, characterized in that: The air outlet (42) is provided with a limiting head (43) for blocking, the inflation tube (23) is provided with an inflation cover which is covered on the rotary grille (21), and the limiting head (43) slides along the limiting groove (232) on the inflation cover to open the air outlet (42).

8. The aeration grid structure for sewage treatment according to claim 2, characterized in that: It also comprises a cleaning assembly (3), which comprises a water outlet pipe (31) and a sewage trough (32) arranged on both sides of the rotary grille (21).

9. The aeration grid structure for sewage treatment according to claim 8, characterized in that: The rotary grille (21) is provided with a temporary storage inclined plate (212), and the temporary storage inclined plate (212) temporarily accumulates the liquid sprayed out of the water outlet pipe (31) to drive the air outlet portion (42) to discharge air.

10. The aeration grid structure for sewage treatment according to claim 2, characterized in that: A temporary storage inclined plate (212) is provided on the rotary grille (21), and the gas outlet (42) discharges gas along the temporary storage inclined plate (212) to limit the gathering of liquid along the outlet direction of the rotary grille (21).

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