An aeration grille structure for sewage treatment

Abstract

The present invention discloses an aeration grille structure for sewage treatment, specifically relating to sewage treatment equipment, including: a sewage flow channel, which includes a clean water flow trough and a sewage flow trough, and an extension part extending into the clean water flow trough is arranged on the sewage flow trough; an internal inflow grille, which includes a rotary grille movably arranged on the extension part, and an air supply pipe is arranged on the rotary grille, and the air supply pipe supplies air into the rotary grille to guide the liquid flow inside and outside the rotary grille. In the present invention, the air supply pipe continuously aerates in the sewage to promote the liquid flow inside and outside the rotary grille, so as to stir the particles between the outer layer of the internal inflow grille and the extension part, thereby preventing the particles from sinking and accumulating, enhancing the filtering effect of the rotary grille, and through the way of aeration and oxygenation, it can promote the decomposition of microorganisms and the conversion of dirt.

Description

Technical Field

[0001] The present invention relates to the technical field of sewage treatment, and more specifically to an aeration grille structure for sewage treatment. Background Art

[0002] Sewage treatment is to introduce sewage into a water body for purification, and after the water quality meets the requirements, it is discharged. In the first link of sewage treatment, a grille is usually used to intercept and remove particles in the sewage.

[0003] According to the patent number CN217350932U, publication (announcement) date: September 2, 2022, an aeration grille is disclosed. The aeration grille includes an aeration and deodorization unit and a filtering and intercepting unit. The filtering and intercepting 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 to an aeration device to aerate and oxygenate the sewage at the bottom, and oxidize and decompose the irritating gases in the sewage. The filtering and intercepting unit includes a grille mesh plate, and there are several mesh holes on the grille mesh plate. This aeration grille is provided with an aeration and deodorization unit. By connecting an external aeration device, it can supplement oxygen to the sewage, promote the oxidation and decomposition of irritating gases such as NH3 and H2S, reduce the odor concentration inside the grille treatment unit, reduce the generation of odors, and create a cleaner, cleaner and more hygienic production environment for the operating workers.

[0004] Among the prior arts including the above patent, the in-flow grille has the advantages of compact structure, high-efficiency filtration and convenient maintenance, and is one of the commonly used devices in sewage treatment. The water inlet mode of the in-flow grille is to enter the in-flow grille through the middle and then be shunted along the grille filtration. When treating sewage with a large amount of suspended particles, the suspended particles are likely to flow out along the grille and stay at the junction of the in-flow grille and the sewage. At this time, manual cleaning is required. Summary of the Invention

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

[0006] To achieve the above purpose, the present invention provides the following technical solution: An aeration grille structure for sewage treatment, comprising:

[0007] A sewage flow channel, which includes a clean flow groove and a sewage flow groove, and an extension part extending into the clean flow groove is provided on the sewage flow groove;

[0008] An in-flow grille, which includes a rotary grille movably arranged on the extension part, and an air supply pipe is arranged on the rotary grille. The air supply pipe supplies gas into the rotary grille to guide the liquid flow inside and outside the rotary grille.

[0009] Preferably, a filter grid is provided on the rotary grille, and an air outlet part communicated with the aeration pipe is provided on the filter grid, and the air outlet part discharges air as the filter grid is immersed in the liquid.

[0010] Preferably, an air outlet part is provided on the aeration pipe, and a limiting head for blocking is movably provided on the air outlet part, and the limiting head floats upward when immersed in the liquid to open the air outlet part.

[0011] Preferably, a beam air duct is provided on the limiting head, and the beam air duct switches between the following two working positions:

[0012] First working position: The limiting head moves to the side to open the beam air duct;

[0013] Second working position: The limiting head moves to the bottom surface to block the beam air duct.

[0014] Preferably, floating blocks are symmetrically and movably arranged in the beam air duct on the limiting head, and the floating blocks float and close in the vertical state of the limiting head and float away in the horizontal state of the limiting head.

[0015] Preferably, an air inflation unit is further included, which includes an air inflation pipe arranged at the top of the rotary grille, and the air inflation pipe inflates the air outlet part.

[0016] Preferably, a limiting head for blocking is provided on the air outlet part, an air inflation cover covering the rotary grille is provided on the air inflation pipe, and the limiting head slides along the limiting groove on the air inflation cover to open the air outlet part.

[0017] Preferably, a cleaning assembly is further included, which includes a water outlet pipe and a sewage discharge tank arranged on both sides of the rotary grille.

[0018] Preferably, a temporary storage inclined plate is provided on the rotary grille, and the temporary storage inclined plate temporarily stores the liquid sprayed out by the water outlet pipe to drive the air outlet part to discharge air.

[0019] Preferably, a temporary storage inclined plate is provided on the rotary grille, and the air outlet part discharges air along the temporary storage inclined plate to limit the liquid from converging along the water outlet direction of the rotary grille.

[0020] In the above technical solution, an aeration grille structure for sewage treatment provided by the present invention has the following beneficial effects: continuous aeration is carried out in the sewage through the aeration pipe to promote the flow of the liquid inside and outside the rotary grille, so as to stir the particles between the outer layer and the extension part of the inner inlet grille, thereby avoiding the sinking and accumulation of particles, enhancing the filtering effect of the rotary grille, and through the method of aeration and oxygenation, it can promote the decomposition of microorganisms and the transformation of dirt. Brief Description of the Drawings

[0021] In order to more clearly illustrate the technical solutions in the embodiments of the present application or the prior art, the following will briefly introduce the drawings required in the embodiments. Obviously, the drawings described below are only some embodiments recorded in the present invention. For those of ordinary skill in the art, other drawings can also be obtained based on these drawings.

[0022] Figure 1 It is the overall schematic diagram provided by the embodiment of the present invention;

[0023] Figure 2 It is the overall exploded schematic diagram provided by the embodiment of the present invention;

[0024] Figure 3 It is the structural schematic diagram of the rotary grille and the cleaning assembly provided by the embodiment of the present invention;

[0025] Figure 4 It is the exploded schematic diagram of the rotary grille and the cleaning assembly provided by the embodiment of the present invention;

[0026] Figure 5 It is Figure 4 the enlarged schematic diagram at position A in;

[0027] Figure 6 It is the sectional schematic diagram of the rotary grille provided by the embodiment of the present invention;

[0028] Figure 7 It is Figure 6 the enlarged schematic diagram at position B in;

[0029] Figure 8 It is Figure 6 the enlarged schematic diagram at position C in;

[0030] Figure 9 It is Figure 6 the enlarged schematic diagram at position D in;

[0031] Figure 10 It is Figure 6 the enlarged schematic diagram at position E in;

[0032] Figure 11 It is the water flow schematic diagram in the rotary grille provided by the embodiment of the present invention.

[0033] Description of the reference numerals:

[0034] 1. Sewage flow channel; 11. Sewage flow tank; 12. Extension part; 13. Clean water flow tank; 2. Inner influent grille; 20. Outer cover; 201. Sealed cover; 21. Rotary grille; 211. Filter grille; 212. Temporary inclined plate; 22. Support driving frame; 221. Power frame; 222. Auxiliary frame; 223. Bottom support frame; 23. Inflatable pipe; 231. Elastic plate; 232. Restriction groove; 233. Covering elastic membrane; 3. Cleaning component; 31. Outlet pipe; 32. Sewage discharge tank; 4. Aeration pipe; 41. Shunt pipe; 42. Air outlet part; 43. Restriction head; 431. Air duct; 44. Floating block; 441. First elastic part; 45. Plugging head. Detailed implementation manners

[0035] In order to make the objectives, technical solutions, and advantages of the embodiments of the present disclosure clearer, the technical solutions of the embodiments of the present disclosure will be clearly and completely described below with reference to the accompanying drawings of the embodiments of the present disclosure. Obviously, the described embodiments are some, but not all, of the embodiments of the present disclosure. All other embodiments obtained by those of ordinary skill in the art based on the described embodiments of the present disclosure without creative efforts shall fall within the scope of protection of the present disclosure.

[0036] As Figure 1-11 shown, an aeration grille structure for sewage treatment includes:

[0037] A sewage flow channel 1, which includes a clean water flow tank 13 and a sewage flow tank 11, and an extension part 12 extending into the clean water flow tank 13 is provided on the sewage flow tank 11;

[0038] An inner influent grille 2, which includes a rotary grille 21 movably arranged on the extension part 12, and an aeration pipe 4 is arranged on the rotary grille 21, and the aeration pipe 4 conveys gas into the rotary grille 21 to guide the liquid flow inside and outside the rotary grille 21.

[0039] Specifically, the sewage flow channel 1 includes a connected clean water flow tank 13 and a sewage flow tank 11. As Figure 2 shown, the extension part 12 is the connection point between the inner influent grille 2 and the sewage. The rotary grille 21 is an annular circulating rotary structure, and rotates counterclockwise with Figure 3 reference. During purification, when the sewage in the sewage flow tank 11 flows along the rotary grille 21, it flows through both sides of the extension part 12 to the rotary grille 21 and enters the clean water flow tank 13 to complete the interception of sewage particles.

[0040] 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.

[0041] 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.

[0042] 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.

[0043] 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 .

[0044] 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.

[0045] 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.

[0046] Further, restricting the head 43 to move with the rotary grille 21 will result in two state changes of the extension portion 12. In the first state, when the restricting head 43 is on the side of the extension portion 12, the restricting head 43 tilts and floats upward under the restriction of buoyancy and the first elastic member 441 (as Figure 8 shown). At this time, one of the holes on the restricting head 43 rotates with the corresponding air outlet pipe as the fulcrum to open an air outlet pipe to achieve air outlet; in the second state, when the restricting head 43 is at the bottom of the extension portion 12, at this time the restricting head 43 directly floats upward, so that both holes and the air outlet pipe are separated to directly conduct air outlet.

[0047] As an embodiment provided by the present invention, a beam air duct 431 is provided on the restricting head 43, and the beam air duct 431 switches between the following two working positions:

[0048] The first working position: The restricting head 43 moves to the side to open the beam air duct 431. At this time, with the first state of the restricting head 43, an air outlet pipe is opened to conduct air into the beam air duct 431. After the gathering of the beam air duct 431, the ejected air bubbles have a long range and a small area to correspond to the water flow flowing to the rotary grille 21;

[0049] The second working position: The restricting head 43 moves to the bottom surface to block the beam air duct 431. At this time, the restricting head 43 is in the second state. At this time, the restricting head 43 directly floats upward, so that both holes and the air outlet pipe are separated. At this time, the air flow ejected from the air outlet pipe will float upward along both sides of the restricting head 43 (as Figure 10 shown) to spread the area of the ejected air bubbles and increase the agitated water flow.

[0050] Further, movable grooves are symmetrically opened in the beam air duct 431 on the restricting head 43, and floating blocks 44 are movably arranged in the movable grooves. When the restricting head 43 is in the second state (i.e., the vertical state), the floating blocks 44 slide upward and close along the movable grooves to block the beam air duct 431 to achieve the state of the second working position. When the restricting head 43 is in the first state (i.e., the horizontal state), both floating blocks 44 float upward. One of the floating blocks 44 slides into the movable groove, and the other floating block 44 slides out of the movable groove, thereby driving the two floating blocks 44 away from each other to open the beam air duct 431.

[0051] As an embodiment provided by the present invention, an air inflation unit is further included, which includes an air inflation pipe 23 arranged on the top of the rotary grille 21. The air inflation pipe 23 is arranged in the support driving frame 22, and the air inflation pipe 23 is communicated with an air inflation source (the air inflation source can be a gas compressor or a large-power blower, etc.) to inflate the air outlet portion 42.

[0052] Further, a limiting head 43 for blocking is provided on the air outlet part 42, and an inflation hood covering the rotary grille 21 is provided on the inflation pipe 23. The inflation hood is composed of symmetric elastic plates 231, and elastic membranes 233 are covered on both sides of the two elastic plates 231. A limiting groove 232 is formed on one of the elastic plates 231. When the limiting head 43 moves into the inflation hood along with the rotary grille 21, the limiting head 43 slides along the limiting groove 232 on the elastic plate 231 to pull the limiting head 43, so as to open two air outlet pipes (as Figure 7 shown). A sealing hood 201 is provided on the outer cover 20, and a sealed space is formed by the two ends of the elastic plate 231, the sealing hood 201 and the covering elastic membrane 233 fitting the filter grille 211. At this time, the gas output by the inflation pipe 23 first flows through the filter grille 211 and then rebounds along the sealing hood 201 and enters the open air outlet pipe for inflation. When the gas passes through the filter grille 211, the attached dirt is impacted, facilitating subsequent cleaning operations.

[0053] Furthermore, the support driving frame 22 includes a power frame 221 and an auxiliary frame 222. The elastic plate 231 is arranged at 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 pipe 23 and rotates together with the power frame 221.

[0054] As an embodiment provided by the present invention, it further includes a cleaning assembly 3, which includes a water outlet pipe 31 and a sewage discharge groove 32 respectively arranged on both sides of the rotary grille 21. The water outlet pipe 31 continuously discharges water into the sewage discharge groove 32 to wash the passing rotary grille 21, and washes the stains attached to the rotary grille 21 into the sewage discharge groove 32, thereby cleaning the stains in the sewage.

[0055] Further, 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, and the discharged gas blows away the stains and liquid on the temporary storage inclined plate 212 to assist in cleaning and increase the cleaning ability.

[0056] As the optimal embodiment provided by the present invention, a temporary storage inclined plate 212 is provided on the filter grille 211 of the rotary grille 21, and the air outlet part 42 discharges air along the temporary storage inclined plate 212. The rotary grille 21 includes a water inlet part and a water outlet part (as Figure 11 shown). When the limiting head 43 on one side of the water inlet part discharges air, it is guided by the temporary storage inclined plate 212 and moves obliquely upward (as Figure 11moves with reference to it), while the air bubbles at the output end of the limiting head 43 at the bottom float up. When the limiting head 43 on the water outlet side discharges air, it moves obliquely downward and then floats up along the guidance of the temporary inclined plate 212 to limit the convergence of the liquid along the water outlet direction of the rotary grille 21, that is, to flow clockwise, so as to concentrate the filtration at the water outlet part and increase the water flow rate filtered at the water outlet part.

[0057] When purifying sewage, the sewage in the sewage flow tank 11 flows into the rotary grille 21 along the extension part 12 for filtration. After the particles are adsorbed by the filter grille 211, the purified water is discharged along the purified water flow tank 13. During the purification process, the two ends of the elastic plate 231, the sealing cover 201 and the covering elastic membrane 233 will fit with the filter grille 211 to form a sealed space. The limiting head 43 is pulled by the limiting groove 232 to open the two air outlet pipes and inflate the air supply pipe 4. At this time, the limiting head 43 on the rotary grille 21 immersed in water will discharge air in two states to limit the convergence of the liquid along the water outlet direction of the rotary grille 21. At the same time, the water outlet pipe 31 continuously discharges water to the sewage discharge tank 32 to wash the passing rotary grille 21. During the washing process, part of the water liquid will be temporarily accumulated along the temporary 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, and the ejected gas blows away the stains and liquid on the temporary inclined plate 212 to complete the cleaning of the attached substances and the filtration cycle.

[0058] Only some exemplary embodiments of the present invention have been described by way of illustration. Undoubtedly, for those of ordinary skill in the art, the described embodiments can be modified in various different 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 protection scope 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); An inner inlet grid (2) comprising a revolving grid (21) movably arranged on the extension portion (12), an aeration pipe (4) being arranged on the revolving grid (21), the aeration pipe (4) supplying air into the revolving grid (21) to guide the flow of liquid inside and outside the revolving grid (21); 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 the liquid along with the filter grille (211) to discharge air; 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); The limiting head (43) is provided with an air binding channel (431), and the air binding channel (431) has the following two station switches: 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); 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; A first elastic member (411) is symmetrically arranged between the limiting head (43) and the air outlet portion (42).

2. The aeration grid structure for sewage treatment according to claim 1, 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).

3. The aeration grid structure for sewage treatment according to claim 2, 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).

4. The aeration grid structure for sewage treatment according to claim 1, 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).

5. The aeration grid structure for sewage treatment according to claim 4, 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.

6. The aeration grid structure for sewage treatment according to claim 1, 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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