A wastewater foam elimination device

Abstract

The utility model discloses a wastewater foam elimination device, including float and defoaming unit, defoaming unit includes casing, defoaming net and fan, the casing sets up on the upper surface of float, and the casing has the inner chamber and the air inlet, the gas outlet and the discharge port who links the inner chamber, the fan sets up at the gas outlet, and the defoaming net sets up in the casing inside to separate the fan and air inlet, compared with prior art, the wastewater foam elimination device provided by the utility model sets up defoaming unit on the float, can float on the wastewater surface of wastewater pool, and the fan inhales the foam from the air inlet into the inner chamber, and the foam breaks when passing through the defoaming net and colliding with the defoaming net, reaches the purpose of removing the wastewater surface foam.

Description

Technical Field

[0001] This utility model relates to, specifically to, a wastewater foam elimination device. Background Technology

[0002] Pharmaceutical wastewater is the wastewater discharged from factories manufacturing antibiotics, antibacterial agents, antisera, and organic and inorganic pharmaceuticals. Its volume and quality vary depending on the type of pharmaceutical product. It typically contains toxic substances such as fluoride, cyanide, phenol, and mercury compounds, as well as high concentrations of organic matter. It has high BOD and COD levels, making it difficult to treat.

[0003] Pharmaceutical manufacturing processes widely utilize various surfactants, dispersants, emulsifiers, solubilizers, and wetting agents. These substances significantly reduce the surface tension of water, making it easier for air to enter the liquid and form bubbles. More importantly, they oriented themselves on the surface of the bubble-liquid film, forming a strong adsorption layer that hinders liquid film drainage and greatly enhances foam stability. This results in pharmaceutical wastewater easily generating large amounts of foam, causing serious interference with wastewater treatment. Utility Model Content

[0004] The purpose of this invention is to overcome the above-mentioned technical deficiencies and propose a wastewater foam elimination device to solve the technical problem that pharmaceutical wastewater is prone to foam generation in the prior art.

[0005] To achieve the above-mentioned technical objectives, the present invention adopts the following technical solution:

[0006] This utility model provides a wastewater foam elimination device, comprising: a float and a defoaming unit.

[0007] The defoaming unit includes a shell, a defoaming net, and a blower. The shell is disposed on the upper surface of the float. The shell has an inner cavity and an air inlet, an air outlet, and a liquid outlet communicating with the inner cavity. The blower is disposed at the air outlet. The defoaming net is disposed inside the shell to separate the blower from the air inlet.

[0008] In some embodiments, the shell includes a thick section, a thin section, and a tapering section. The inner diameter of the thick section is larger than that of the thin section. The two ends of the tapering section are connected to the thick section and the thin section, respectively. The inner diameter of the tapering section gradually decreases in the direction from the thick section to the thin section. The thick section is fixedly connected to the upper surface of the float.

[0009] In some embodiments, the air inlet and the liquid outlet are located in the coarse section, the end of the thin section away from the tapering section forms an air outlet, the defoaming net is located in the tapering section, and the fan is located in the thin section.

[0010] In some embodiments, the defoaming unit further includes a suction tube, one end of which is connected to the air inlet and the other end of which extends to the edge of the float for sucking up foam.

[0011] In some embodiments, the housing is provided with a plurality of air inlets evenly arranged around its central axis, and a plurality of suction tubes are connected to the air inlets in a one-to-one correspondence, the suction tubes being evenly distributed around the central axis of the housing.

[0012] In some embodiments, a drive unit is further included, which is disposed on the lower surface of the float and is used to drive the float to move on the water surface.

[0013] In some embodiments, the drive unit includes a mounting plate, a bearing, and a thruster. The mounting plate is fixedly mounted on the lower surface of the float, and the thruster is rotatably connected to the mounting plate via the bearing, allowing the thruster to rotate freely relative to the mounting plate.

[0014] In some embodiments, the float includes a fixed float and an airbag, the fixed float being fixedly connected to the airbag, and the airbag having a closable inflation port.

[0015] In some embodiments, the fixed float has a T-shaped cross-section, including a flat plate portion and a column portion. The upper end of the column portion is fixedly connected to the lower surface of the flat plate portion. The airbag is annular, sleeved on the column portion and fixedly connected to the side of the column portion.

[0016] In some embodiments, the system further includes anti-roll plates, a plurality of which surround the float, with their upper ends fixedly connected to the side of the float and their lower ends extending obliquely away from the float.

[0017] Compared with the prior art, the wastewater foam elimination device provided by this utility model sets the defoaming unit on the float, which can float on the surface of the wastewater in the wastewater pool. The blower draws the foam into the inner cavity from the air inlet. When the foam passes through the defoaming net, it collides and breaks with the defoaming net, thereby achieving the purpose of removing foam from the surface of the wastewater. Attached Figure Description

[0018] Figure 1 This is a schematic diagram of the wastewater foam elimination device provided in this embodiment of the utility model;

[0019] Figure 2 yes Figure 1 Schematic diagram of the internal structure of the defoaming unit;

[0020] Figure 3 yes Figure 1 Cross-sectional view of the floating body. Detailed Implementation

[0021] To make the objectives, technical solutions, and advantages of this utility model clearer, the present utility model will be further described in detail below with reference to the accompanying drawings and embodiments. It should be understood that the specific embodiments described herein are merely illustrative of the present utility model and are not intended to limit the present utility model.

[0022] To address the technical problem of foam generation in pharmaceutical wastewater, which affects subsequent treatment, this invention provides a wastewater foam elimination device capable of eliminating foam on the surface of wastewater.

[0023] It should be noted that the wastewater foam elimination device described in this utility model is used for, but not limited to, eliminating foam in pharmaceutical wastewater. For ease of explanation, this utility model only uses the application of the wastewater foam elimination device to pharmaceutical wastewater as an example. The principle of the wastewater foam elimination device applied to other types of wastewater is essentially the same as that applied to pharmaceutical wastewater, and will not be elaborated here.

[0024] Please see Figure 1 and Figure 2 , Figure 1 This is a schematic diagram of the wastewater foam elimination device provided in this embodiment of the utility model; Figure 2 yes Figure 1 A schematic diagram of the internal structure of the defoaming unit. The wastewater foam elimination device includes a float 1 and a defoaming unit 2.

[0025] The size of float 1 is large enough to support the defoaming unit 2 floating on the surface of the wastewater.

[0026] The defoaming unit 2 includes a housing 21, a defoaming net 22, and a blower 23. The housing 21 is disposed on the upper surface of the float 1. The housing 21 has an inner cavity and an air inlet 21a, an air outlet 21b, and a liquid outlet 21c that communicate with the inner cavity. The blower 23 is disposed at the air outlet 21b. The defoaming net 22 is disposed inside the housing 21 to separate the blower 23 from the air inlet 21a.

[0027] The wastewater foam removal device is placed in a container such as a wastewater pool to hold wastewater. The blower 23 draws the foam into the inner cavity from the air inlet 21a. When the foam passes through the defoaming net 22, it collides and breaks with the defoaming net 22, thereby achieving the purpose of removing foam from the surface of the wastewater.

[0028] In some embodiments, the float 1 includes a fixed float 11 and an air bladder 12. The fixed float 11 is made of materials such as foam and its volume is almost immutable. The air bladder 12 is fixedly connected to the fixed float 11 and has a sealable inflation port. By injecting different amounts of gas into the air bladder 12, the total volume of the float 1 can be changed to adapt to wastewater of different densities. The defoaming unit 2 is positioned as close to the water surface as possible to fully absorb foam.

[0029] Please seeFigure 3 , Figure 3 yes Figure 1 Cross-sectional view of the mid-buoy. In a preferred embodiment, the fixed float 11 has a T-shaped cross-section, including a flat plate portion 111 and a column portion 112. The upper end of the column portion 112 is fixedly connected to the lower surface of the flat plate portion 111. The shell 21 is fixedly connected to the upper surface of the flat plate portion 111, making the connection more stable. The airbag 12 is annular, sleeved on the column portion 112 and fixedly connected to the side of the column portion 112.

[0030] In some embodiments, the shell 21 includes a thick section 211, a tapering section 212, and a thin section 213. The inner diameter of the thick section 211 is larger than that of the thin section 213. The two ends of the tapering section 212 are connected to the thick section 211 and the thin section 213, respectively. The inner diameter of the tapering section 212 gradually decreases along the direction from the thick section 211 to the thin section 213. The thick section 211 is fixedly connected to the upper surface of the float 1, i.e., the upper surface of the flat plate portion 111. The shell 21 adopts a chimney-like structure, which is beneficial for upward suction of foam.

[0031] Based on the above embodiment, the air inlet 21a and the liquid outlet 21c are located in the coarse section 211, and the liquid outlet 21c preferably connects to the bottom of the inner cavity to discharge the liquid generated after defoaming. The end of the fine section 213 away from the tapered section 212 forms the air outlet 21b, the defoaming net 22 is located in the tapered section 212, and the fan 23 is located in the fine section 213.

[0032] In some embodiments, the defoaming unit 2 further includes a suction tube 24, one end of which is connected to the air inlet 21a, and the other end of which extends to the edge of the float 1 and is fixedly connected to the flat plate portion 111 by a structure such as a bracket, for sucking up foam.

[0033] In some embodiments, the housing 21 is provided with a plurality of air inlets 21a evenly arranged around its central axis, and a plurality of suction tubes 24 are connected to the air inlets 21a one by one. The suction tubes 24 are evenly distributed around the central axis of the housing 21, so that the defoaming unit 2 can suck up foam from all directions.

[0034] In some embodiments, the wastewater foam elimination device further includes a drive unit 3, which is disposed on the lower surface of the float 1 and is used to drive the float 1 to move on the water surface, thereby sucking and eliminating foam in various parts of the wastewater pool.

[0035] In some embodiments, the drive unit 3 includes a mounting plate 31, a bearing, and a propeller 32. The mounting plate 31 is fixedly mounted on the lower surface of the float 1, specifically on the lower surface of the column portion 112. The propeller 32 is rotatably connected to the mounting plate 31 via the bearing, allowing the propeller 32 to rotate freely relative to the mounting plate 31. This design enables the propeller 32 to continuously change its propulsion direction, moving to various locations within the wastewater tank for defoaming operations. It should be noted that the change in the direction of the propeller 32 is not actively performed by the operator, but is randomly generated during movement by external factors such as water flow and tank walls. Since the defoaming operation does not require complete elimination of foam, only the elimination of most of the foam is needed, with the remaining small amount of foam not affecting subsequent wastewater treatment. Furthermore, accumulated foam will move and dissolve towards areas without foam. Therefore, this wastewater foam elimination device does not need to cover the entire wastewater tank; it only needs to roughly cover it. The bearing connection reduces rotational friction, making it easy for the propeller 32 to rotate under external force, thus meeting the above requirements.

[0036] The thruster 32 includes a power supply battery, a drive motor, and a propeller. The battery is connected to the drive motor for its function, and the drive motor is connected to the propeller to drive the propeller to rotate and generate thrust. The battery can also supply power to the wind turbine 23.

[0037] In some embodiments, the wastewater foam elimination device further includes anti-sway plates 4, with multiple anti-sway plates 4 surrounding the float 1. The upper end of the anti-sway plates 4 is fixedly connected to the side of the float 1, specifically the side of the flat plate portion 111, and the lower end extends obliquely away from the float 1. The anti-sway plates 4 can generate additional resistance when the wastewater foam elimination device shakes, hindering the shaking of the wastewater foam elimination device and preventing the wastewater foam elimination device from overturning.

[0038] To better understand this utility model, the following is combined with... Figures 1 to 3 The technical solution of this utility model is described in detail below: In use, the wastewater foam elimination device is placed in the sewage, and the drive unit 3 drives the wastewater foam elimination device to move randomly in the foam. The blower 23 draws the foam into the inner cavity from the air inlet 21a. When the foam passes through the defoaming net 22, it collides and breaks with the defoaming net 22, thereby achieving the purpose of removing foam from the surface of the wastewater.

[0039] The specific embodiments of this utility model described above do not constitute a limitation on the scope of protection of this utility model. Any other corresponding changes and modifications made based on the technical concept of this utility model should be included within the scope of protection of the claims of this utility model.

Claims

1. A wastewater foam elimination device, characterized in that, include: floating body, The defoaming unit includes a shell, a defoaming net, and a fan. The shell is disposed on the upper surface of the float and has an inner cavity and an air inlet, an air outlet, and a liquid outlet communicating with the inner cavity. The fan is disposed at the air outlet, and the defoaming net is disposed inside the shell to separate the fan from the air inlet.

2. The wastewater foam elimination device according to claim 1, characterized in that, The shell includes a thick section, a thin section, and a tapering section. The inner diameter of the thick section is larger than that of the thin section. The two ends of the tapering section are connected to the thick section and the thin section, respectively. The inner diameter of the tapering section gradually decreases along the direction from the thick section to the thin section. The thick section is fixedly connected to the upper surface of the float.

3. The wastewater foam elimination device according to claim 2, characterized in that, The air inlet and the liquid outlet are located in the coarse section, the end of the fine section away from the tapering section forms the air outlet, the defoaming net is located in the tapering section, and the fan is located in the fine section.

4. The wastewater foam elimination device according to claim 1, characterized in that, The defoaming unit also includes a suction tube, one end of which is connected to the air inlet and the other end of which extends to the edge of the float for sucking up foam.

5. The wastewater foam elimination device according to claim 4, characterized in that, The housing has multiple air inlets evenly arranged around its central axis, and multiple suction tubes are connected to each air inlet in a one-to-one correspondence. The suction tubes are evenly distributed around the central axis of the housing.

6. The wastewater foam elimination device according to claim 1, characterized in that, It also includes a drive unit, which is disposed on the lower surface of the float and is used to drive the float to move on the water surface.

7. The wastewater foam elimination device according to claim 6, characterized in that, The drive unit includes a mounting plate, a bearing, and a thruster. The mounting plate is fixedly mounted on the lower surface of the float, and the thruster is rotatably connected to the mounting plate via the bearing, allowing the thruster to rotate freely relative to the mounting plate.

8. The wastewater foam elimination device according to claim 1, characterized in that, The buoy includes a fixed float and an airbag, the fixed float being fixedly connected to the airbag, and the airbag having a sealable inflation port.

9. The wastewater foam elimination device according to claim 8, characterized in that, The fixed float has a T-shaped cross-section, including a flat plate and a column. The upper end of the column is fixedly connected to the lower surface of the flat plate. The airbag is annular, which is sleeved on the column and fixedly connected to the side of the column.

10. The wastewater foam elimination device according to claim 1, characterized in that, It also includes anti-sway plates, multiple of which surround the float, with their upper ends fixedly connected to the side of the float and their lower ends extending at an angle away from the float.

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