Defoaming device and aeration system

Abstract

The invention discloses a defoaming device and an aeration system, the defoaming device comprises at least one demister, the demister is provided with a plurality of thorn bodies for eliminating bubbles, and the plurality of thorn bodies are uniformly distributed on the demister; the demister is erected on the mounting frame and can rotate relative to the mounting frame; and the driving mechanism is connected with the demister and can drive the demister to rotate in a reciprocating manner. The invention discloses a defoaming device and an aeration system. The defoaming device and the aeration system are used for solving the problem that the elimination effect provided by the existing defoaming device is not ideal.

Description

Technical Field

[0001] This application relates to the technical field of seawater desulfurization, and more specifically, to a demisting device and an aeration system. Background Art

[0002] In the seawater desulfurization process, the desulfurized seawater flows into the sea after aeration in the aeration tank. There are a large number of air bubbles in the aeration tank and are carried into the drainage tank or the sea when flowing. For example, the aeration fan blows air into the mixed seawater, and the fine bubbles gradually saturate the dissolved oxygen in the seawater and at the same time promote the generation of foam; for another example, foam is easily generated due to the violent tumbling of water flow in the aeration tank and the drainage open channel; the baffle wall and the height difference set at the end of the aeration tank and the water inlet of the drainage open channel will also tumble the seawater, further promoting the generation of foam; for another example, the carbon dioxide released in the neutralization reaction may increase the generation of foam; the solid suspended matter in the seawater is relatively high, and the bubbles adhere to the solid suspended matter and float on the water surface to generate foam.

[0003] Traditional defoaming methods include physical defoaming and chemical defoaming: Physical defoaming includes setting up a foam barrier net and a spray pipe, and this defoaming method has an insignificant effect on eliminating small bubbles; Chemical defoaming refers to the long-term use of chemical defoaming agents, which may lead to an increase in operating costs and may cause secondary pollution to the environment.

[0004] Therefore, a demisting device and an aeration system are needed to solve the above problems. Summary of the Invention

[0005] In view of this, the purpose of this application is to propose a demisting device and an aeration system to solve the problem that the existing demisting device provides an unsatisfactory elimination effect.

[0006] Based on the above purpose, a demisting device provided by this application includes:

[0007] At least one demister, on which a plurality of thorns for eliminating bubbles are provided, and the plurality of thorns are evenly distributed on the demister;

[0008] A mounting frame, on which the demister is mounted and can rotate relative to the mounting frame;

[0009] A driving mechanism, which is connected to the demister and can drive the demister to rotate reciprocally.

[0010] Optionally, the demister includes a roller shaft and at least one drum connected to the roller shaft, the roller shaft is mounted on the mounting frame, and the roller shaft and / or the drum are connected to the driving mechanism; a plurality of the thorns are provided on each drum.

[0011] Optionally, the driving mechanism includes at least one impeller, which is connected to the roller shaft and / or the drum, and the impeller can drive the drum to rotate.

[0012] Optionally, a texture layer and / or a coating are provided on the demister.

[0013] The thorn body includes a main body, and at least one thorn needle is provided on the main body; or at least one thorn rod is provided on the main body, and at least one thorn needle is provided on the thorn rod.

[0014] Optionally, the demisting device further includes: a lifting mechanism, which is in transmission connection with the mounting frame, and the lifting mechanism is used to control the lifting of the demister.

[0015] Optionally, the demisting device further includes: a liquid level monitoring mechanism, a power control mechanism and a transmission mechanism. The transmission mechanism is connected to the lifting mechanism. The liquid level monitoring mechanism is used to monitor and send a liquid level signal. The power control mechanism is used to receive the liquid level signal, compare the liquid level signal with a preset signal, and send a control instruction to the transmission mechanism according to the comparison result. The transmission mechanism sends the control instruction to the lifting mechanism, and the lifting mechanism adjusts the position of the demister according to the control instruction.

[0016] Optionally, the demisting device further includes a pre-demisting structure, which is arranged on the incoming material side of the demister, and the foam size that the pre-demisting structure can eliminate is the same as or not completely the same as the foam size that the demister can eliminate.

[0017] In addition, optionally, the demisting device further includes a buffer structure, which is arranged on the discharge side of the demister, and the buffer structure can reduce the moving speed of the foam.

[0018] The present application also provides an aeration system, including:

[0019] An inlet tank, an aeration tank and a drainage tank that are connected in sequence;

[0020] At least one demisting device as described above, and the demisting device is arranged in the drainage tank.

[0021] As can be seen from the above, compared with the prior art, the demisting device and the aeration system provided by the present application have the following advantages: By using the above demisting device, the thorn body can effectively eliminate bubbles of various sizes, especially the elimination effect on small bubbles is more significant. When the demister is driven by an external force, it can rotate relative to the mounting frame. During the rotation process, the rotation of the demister and the thorn bodies at different positions of the demister can all contact the bubbles, increasing the contact surface within a limited time and improving the elimination efficiency. Description of the Drawings

[0022] The above features and technical advantages of the present application will become clearer and easier to understand through the following description of its embodiments in conjunction with the accompanying drawings.

[0023] Figure 1 It is a schematic diagram of the demisting device adopted in the specific embodiment of the present application.

[0024] Figure 2 is Figure 1 a schematic diagram of the usage state of the demisting device shown.

[0025] Figure 3 It is a schematic diagram of the barb adopted in the first embodiment of the present application.

[0026] Figure 4 It is a schematic diagram of the barb adopted in the second embodiment of the present application.

[0027] Figure 5 It is a schematic diagram of the barb adopted in the third embodiment of the present application.

[0028] Figure 6 It is a schematic diagram of the barb adopted in the fourth embodiment of the present application.

[0029] Figure 7 is Figure 1 a schematic diagram of the aeration system including the demisting device shown.

[0030] Wherein the reference numerals:

[0031] 1, inlet tank; 2, aeration tank; 3, drainage tank; 31, drainage outlet; 4, demisting device; 41, demister; 411, single-pointed barb structure; 412, multi-pointed barb structure; 413, T-shaped pointed barb structure; 414, star-shaped pointed barb structure; 42, mounting frame; 43, lifting mechanism. Detailed Description of the Specific Embodiment

[0032] To make the objectives, technical solutions, and advantages of the present application clearer and more understandable, the following further details the present application in conjunction with specific embodiments and with reference to the accompanying drawings. The same components are denoted by the same reference numerals. It should be noted that the terms "front", "rear", "left", "right", "upper", and "lower" used in the following description refer to the directions in the drawings. The terms "inner" and "outer" respectively refer to the directions towards or away from the geometric center of a specific component.

[0033] Figure 1 It is a schematic diagram of the demisting device adopted in the specific embodiment of the present application. Figure 2 is Figure 1 a schematic diagram of the usage state of the demisting device shown. As Figure 1 and Figure 2As shown, the demisting device includes at least one demister 41, a mounting frame 42 and a driving mechanism.

[0034] The demisting device 4 includes at least one demister 41. A plurality of thorns for eliminating bubbles are provided on the demister 41, and the plurality of thorns are evenly distributed on the demister 41; the demister 41 is mounted on the mounting frame 42 and can rotate relative to the mounting frame 42; the driving mechanism is connected to the demister 41 and can drive the demister 41 to rotate reciprocally.

[0035] The demister 41 can be one or more. A plurality of demisters 41 can be arranged in an array. The demisters 41 can operate independently, or one or more can operate synchronously, or a plurality can operate cooperatively.

[0036] The thorns generally cover the surface of the demister 41. One or more thorn needles can be provided on each thorn, and the thorn needles can also cover the surface of the thorn. Each thorn needle can pierce the bubbles and eliminate the foam. The plurality of thorn needles on the same thorn can extend in different directions.

[0037] The mounting frame 42 provides a supporting function for the demister 41, and the demister 41 can rotate reciprocally on the mounting frame 42. The driving mechanism drives the demister 41 to rotate. During the rotation of the demister 41, the thorns and / or the thorn needles can contact the bubbles and pierce them to eliminate the foam.

[0038] With the above-mentioned demisting device 4, the thorns can effectively eliminate bubbles of various sizes, especially the elimination effect on small bubbles is more remarkable. When the demister 41 is driven by an external force, it can rotate relative to the mounting frame 42. During the rotation process, the rotation of the demister 41 and the thorns at different positions of the demister 41 can contact the bubbles, increasing the contact surface within a limited time and improving the elimination efficiency.

[0039] In an embodiment of the present application, the material of the demister 41 includes but is not limited to duplex stainless steel material, carbon steel anti-corrosion material, fiberglass material, etc.

[0040] In an embodiment of the present application, the mounting frame 42 can adopt a transverse truss, and the transverse truss can adopt duplex stainless steel material, carbon steel anti-corrosion material, fiberglass material, reinforced concrete material, etc.

[0041] In another embodiment of the present application, the demisting device 4 is arranged in a pool. Pipes will be laid in the pool, supports are provided on the pipes, and the demister 41 is arranged on the supports.

[0042] The demister 41 should be set according to the specific use environment. Optionally, the demister 41 includes a roller and at least one drum connected to the roller. The roller is mounted on the mounting frame 42, and the roller and / or the drum are connected to the driving mechanism; a plurality of barbs are provided on each drum. The drum can rotate relative to the bracket. It can be that the roller is rotatably connected to the mounting frame 42, the roller is relatively fixed to the drum, and the roller can drive the drum to rotate; or it can be that the roller is relatively fixed to the mounting frame 42, the roller is rotatably connected to the drum, and the drum can rotate relative to the roller. Usually, the drum is covered with barbs, and the number and layout of the barbs can be locally strengthened according to the flow position of the foam. For example, the middle section of the drum has more and denser barbs than the ends. By using the above-mentioned demisting device 4, a better demisting effect can be provided to meet the demisting requirements.

[0043] The arrangement of the drums can be designed as a single drum or an arrangement of multiple drums. For example, one drum can be provided on each roller, or two or more drums can be provided for each roller, and the multiple drums are evenly distributed along the roller. When the number of drums is multiple, it can be designed as a single-row or multi-row array distribution, or it can be designed as an in-line or staggered arrangement to adapt to different throughput and foam loads. In an embodiment of the present application, one drum can be provided on the roller, and the drum is sleeved and fixed on the outside of the roller.

[0044] According to the installation space and process requirements, the drum can be set as a horizontal drum, or a vertical drum, or a combination of both to optimize space utilization and operation convenience. The shape of the drum can be circular, square, polygonal or other shapes to adapt to different foam characteristics and processing efficiencies. In an embodiment of the present application, the drum is a horizontal drum, and the shape of the drum is polygonal, having more edges and corners to enhance the elimination effect.

[0045] In an embodiment of the present application, the barbs can be arranged in an array on the drum, and the size of the barbs can be gradually changed. For example, the closer to the drum, the larger the diameter, and the farther away from the drum, the smaller the diameter. The barb can have one barb needle or multiple barb needles, and the multiple barb needles can extend in different directions. There can be a small gap between adjacent barbs, or the gaps are staggered.

[0046] Optionally, the driving mechanism includes at least one impeller, which is connected to the roller shaft and / or the drum. The impeller can drive the drum to rotate. The impeller can be arranged on the surface of the drum, but in order to avoid affecting the distribution of the thorns, it is more often arranged on the roller shaft or the end of the drum. The kinetic energy of the seawater flow acts on the impeller, pushing the impeller to rotate. The impeller drives the drum and the thorns on the drum to rotate. The thorns contact the foam, continuously puncture the flowing foam, and release gas at the same time, while the liquid flows down along the surface of the drum, thus achieving the purpose of defoaming. Using the impeller as the driving mechanism only utilizes the kinetic energy of the water flow as the driving force without the need for additional power, saving energy consumption.

[0047] In one embodiment of the present application, the number of impellers is multiple, usually an even number, such as two. The two impellers are respectively arranged at opposite ends of the drum and are symmetrically distributed about the center on the roller shaft.

[0048] The driving mechanism may further include a driving structure, which provides driving force for the foam remover 41. The impeller can assist the driving structure in driving actions, thereby reducing energy consumption.

[0049] In one embodiment of the present application, the impeller includes, but is not limited to, a flow channel type impeller, a spiral centrifugal impeller, a swirl type impeller, etc.

[0050] Optionally, a texture layer and / or a coating are provided on the foam remover 41. By providing the texture layer and / or the coating, the roughness and durability of the foam remover 41 can be increased, which helps to eliminate foam.

[0051] In one embodiment of the present application, a coating is provided on the surface of the drum, and a texture layer is provided on the surface of the thorns.

[0052] In another embodiment of the present application, texture layers are provided on the surfaces of both the drum and the thorns to increase the surface roughness, so that bubbles can be eliminated through contact on the surface of the foam remover 41.

[0053] The structure of the thorns can be set according to specific elimination requirements. When there are more bubbles, thorns with more thorn needles can be used. Optionally, the thorns include a main body, and at least one thorn needle is provided on the main body; or at least one thorn rod is provided on the main body, and at least one thorn needle is provided on the thorn rod. The thorns, thorn rods and thorn needles can all adopt a conical structure and can all puncture bubbles; the surfaces of the thorns, thorn rods and thorn needles all have relatively large roughness and can also eliminate bubbles through contact. Generally, the more the number of thorn needles is set, the wider the distribution range is, the larger the coverage range is, and the better the effect of puncturing bubbles is.

[0054] Figure 3 This is a schematic diagram of the thorns used in the first embodiment of the present application. As Figure 3As shown, the pricking body adopts a single sharp-angle burr structure 411, that is, the pricking body includes a main body, and one or more pricking needles are arranged at one end of the main body away from the drum.

[0055] Figure 4 FIG. 1 is a schematic diagram of a thorn body used in the second embodiment of the present application. Figure 4 As shown, the thorn body adopts a multi-pointed burr structure 412, that is, the thorn body includes a main body and a plurality of thorn rods evenly distributed on the main body, one or more thorns are arranged at one end of the main body away from the drum, and one or more thorns are arranged at one end of each thorn rod away from the main body.

[0056] Figure 5 FIG. 1 is a schematic diagram of a thorn body used in the third embodiment of the present application. Figure 5 As shown, the thorn body adopts a T-shaped sharp-angle burr structure 413, that is, the thorn body includes a main body and a thorn rod arranged at one end of the main body away from the drum, and one or more thorn needles are arranged at opposite ends of the thorn rod; one or more thorn needles can also be arranged between the two ends of the thorn rod.

[0057] Figure 6 FIG. 1 is a schematic diagram of a thorn body used in the fourth embodiment of the present application. Figure 6 As shown, the thorn body adopts a star-shaped pointed burr structure 414, that is, the thorn body includes a main body and a thorn rod arranged at one end of the main body away from the drum, the thorn rod is arranged obliquely, such as extending obliquely upward, one or more thorns are arranged at the end of the main body away from the drum, each thorn rod is provided with a plurality of evenly distributed thorns, the thorns are arranged obliquely, and one or more thorns are arranged at the end of each thorn rod away from the main body.

[0058] When it is necessary to deal with different water treatment volumes, the height of the flowing water is different, so that the foam position is different. In order to increase the flexibility of the defoamer 4, the defoamer 4 may also include: a lifting mechanism 43, which is connected to the mounting frame 42 by transmission, and the lifting mechanism 43 is used to control the lifting of the defoamer 41. The mounting frame 42 may be provided with a fixed bracket and a movable bracket, and the movable bracket can move relative to the fixed bracket. The defoamer 41 is installed on the movable bracket, and the lifting mechanism 43 is connected to the movable bracket by transmission. The lifting mechanism 43 drives the movable bracket to rise and fall, and the movable bracket drives the defoamer 41 to rise and fall synchronously. When the water treatment volume is large, the position of the defoamer 41 can be raised according to the foam position; similarly, when the water treatment volume is small, the position of the defoamer 41 can be lowered.

[0059] The lifting mechanism 43 and the mounting frame 42 may be hard-connected. In one embodiment of the present application, the lifting mechanism 43 and the mounting frame 42 may be connected by a rack and pinion structure.

[0060] The lifting mechanism 43 and the mounting frame 42 may also be connected in a flexible manner. In one embodiment of the present application, the lifting mechanism 43 and the mounting frame 42 may be connected by a chain or a steel cable, and the demister 41 may also be lifted and lowered by a counterweight.

[0061] In order to realize the automatic control of the lifting mechanism 43, the defoaming device 4 also includes: a liquid level monitoring mechanism, a power control mechanism and a transmission mechanism, the transmission mechanism is connected to the lifting mechanism 43, the liquid level monitoring mechanism is used to monitor and send a liquid level signal, the power control mechanism is used to receive the liquid level signal, and compare the liquid level signal with the preset signal, send a control instruction to the transmission mechanism according to the comparison result, the transmission mechanism sends the control instruction to the lifting mechanism 43, and the lifting mechanism 43 adjusts the position of the defoamer 41 according to the control instruction. The liquid level monitoring mechanism can monitor the liquid level signal in real time and send it to the power control mechanism. When the liquid level signal obtained by the power control mechanism is compared with the preset signal, the result is that it does not exceed the preset range, then the power control mechanism issues a static instruction; the result is that it exceeds the preset range, the power control mechanism issues a control instruction to the transmission mechanism to rise or fall, the transmission mechanism sends the control instruction to the lifting mechanism 43, and the lifting mechanism 43 adjusts the position of the defoamer 41 to rise or fall according to the rise or fall instruction, until the liquid level signal obtained by the power control mechanism is compared with the preset signal and the result is that it does not exceed the preset range, then the lifting mechanism 43 controls the defoamer 41 to stand still at this position.

[0062] Optionally, the defoaming device 4 also includes a pre-defoaming structure, which is arranged on the incoming material side of the defoamer 41. The foam size that the pre-defoaming structure can eliminate is the same or different from the foam size that the defoamer 41 can eliminate. The defoaming device 4 includes a multi-stage processing structure, such as a primary pre-defoaming structure and a secondary defoamer 41. Different levels of structures can be used for foams of different sizes, such as the pre-defoaming structure can be used to process larger bubbles, and the defoamer 41 can be used to process larger, medium, and smaller bubbles. When the defoaming device 4 is arranged, there may be a certain interval between the pre-defoaming structure and the defoamer 41, and foams of different sizes are mixed together. First, large-sized foams are processed through the processing range of the pre-defoaming structure, and medium or small-sized or large-sized foams are processed through the processing range of the pre-defoaming structure, and enter the processing range of the defoamer 41, and are processed by the defoamer 41. The above-mentioned multi-stage processing structure of the defoaming device 4 is used in combination to improve the overall defoaming effect.

[0063] In one embodiment of the present application, the pre-foam removal structure includes but is not limited to a wire mesh demister 41, which is arranged on the incoming material side of the demister 41. The wire mesh demister 41 is mainly used to remove large-sized foam, and can also remove medium or small-sized foam. The wire mesh demister 41 has the advantages of simple structure, small volume, light weight, easy installation, operation and maintenance, high capture efficiency, etc., which is conducive to improving the foam removal rate and efficiency.

[0064] In another embodiment of the present application, the pre-defoaming structure includes, but is not limited to, a cyclone vane foam eliminator 41. The cyclone vane foam eliminator 41 is arranged on the incoming material side of the foam eliminator 41, and the cyclone vane foam eliminator 41 eliminates full-size foam. The cyclone vane foam eliminator 41 has the advantages of simple structure, small volume, light weight, convenient installation, operation and maintenance, and high trapping efficiency, which is beneficial to improving the foam elimination rate and efficiency.

[0065] Optionally, the defoaming device 4 further includes a buffer structure. The buffer structure is arranged on the discharge side of the foam eliminator 41, and the buffer structure can reduce the moving speed of the foam. By adding obstacles in the water flow moving path, the bubbles will hit the obstacles, which can cause the bubbles to burst. At the same time, adding obstacles such as stones and wooden boards can significantly increase the resistance of the water flow, so as to achieve the purpose of deceleration, increase the contact time between the bubbles and the foam eliminator 41, and achieve the purpose of eliminating foam.

[0066] In one embodiment of the present application, the buffer structure includes, but is not limited to, a buffer plate. One or more pipes are arranged on the buffer plate at intervals. The buffer plate is arranged on the discharge side of the foam eliminator 41. There is a gap between the buffer plate and the foam eliminator 41, and the thorns of the foam eliminator 41 do not interfere with the buffer plate, and at the same time can pierce the bubbles between the buffer plate and the foam eliminator 41. When the water flow is processed by the foam eliminator 41, there are still bubbles escaping. At this time, the bubbles will hit the buffer plate to remove the bubbles. If the bubbles are still not removed, the thorns can pierce into the bubbles, and then achieve the purpose of removing the bubbles. The water flow after removing the bubbles flows out from the pipes.

[0067] In another embodiment of the present application, the buffer structure includes a plurality of resistance plates. The resistance plates are arranged on the incoming material side of the foam eliminator 41, and the resistance plates are arranged staggered in the water flow path. The water flow passes through the gaps between the resistance plates. By increasing the resistance plates, the water speed can be reduced, the contact time between the bubbles and the foam eliminator 41 can be increased, and it is convenient for the thorns to pierce into the bubbles and eliminate the foam.

[0068] The following further introduces the use process of the defoaming device 4.

[0069] The mounting bracket 42 provides support for the demister 41. The demister 41 is installed on a movable bracket, and the movable bracket is installed on a fixed bracket. The movable bracket is connected to the lifting mechanism 43. The lifting mechanism 43 is equipped with a liquid level monitoring mechanism, a power control mechanism, and a transmission mechanism. The transmission mechanism is connected to the lifting mechanism 43. An impeller is used as the driving mechanism. The kinetic energy of the seawater flow acts on the impeller, pushing the impeller to rotate. The impeller drives the drum and the thorns on the drum to rotate. During the rotation process, the thorns can contact and pierce the bubbles, continuously puncturing the flowing foam and releasing the gas at the same time, while the liquid flows down along the surface of the drum, thus achieving the purpose of defoaming. The demisting device 4 is driven by the water flow, has almost no influence on the water channel resistance, reduces energy consumption, and reduces the investment cost.

[0070] The liquid level monitoring mechanism can monitor the liquid level signal in real time and send it to the power control mechanism. When the power control mechanism obtains the liquid level signal, it compares it with the preset signal. If the result is that it does not exceed the preset range, the power control mechanism issues a static instruction; when the foam height changes, that is, the comparison result exceeds the preset range, the power control mechanism sends a control instruction to rise or fall to the transmission mechanism. The transmission mechanism sends the control instruction to the lifting mechanism 43. The lifting mechanism 43 drives the movable bracket to move relative to the fixed bracket according to the rise or fall instruction, adjusting the position of the demister 41 to rise or fall until the comparison result of the liquid level signal obtained by the power control mechanism and the preset signal is that it does not exceed the preset range, then the lifting mechanism 43 controls the demister 41 to be static at this position. Through the lifting mechanism 43, the lifting of the demister 41 is realized, and the foam can be accurately positioned and eliminated.

[0071] Figure 7 For including Figure 1 The schematic diagram of the aeration system of the demisting device shown in. As Figure 7 shown, the present application also provides an aeration system, including: a water inlet tank 1, an aeration tank 2, a drainage tank 3, and a demisting device 4.

[0072] The aeration system includes a water inlet tank 1, an aeration tank 2, and a drainage tank 3 that are connected in sequence; at least one demisting device 4 as described above, and the demisting device 4 is arranged in the drainage tank 3.

[0073] The water inlet tank 1 and the drainage tank 3 are opposite and spaced apart. The aeration tank 2 is arranged between the water inlet tank 1 and the drainage tank 3. There is an aeration unit in the aeration tank 2 for providing aeration to the aeration tank 2. The water flow flows along the water inlet tank 1, the aeration tank 2, and the drainage tank 3, and is discharged through the drainage port 31 of the drainage tank 3. The demisting device 4 is arranged close to the drainage port 31.

[0074] With the above aeration system, the foam remover 4 eliminates the foam in the drainage tank 3 to prevent the foam from overflowing. The thorns of the foam remover 4 can effectively eliminate bubbles of various sizes, especially the elimination effect on small bubbles is more remarkable. When the foam remover 41 is driven by an external force, it can rotate relative to the mounting frame 42. During the rotation process, the rotation of the foam remover 41 and the thorns at different positions of the foam remover 41 can all come into contact with the bubbles, increasing the contact surface within a limited time and improving the elimination efficiency. With the above foam remover 4, the foam is removed more thoroughly and the foam removal efficiency is high.

[0075] As can be seen from the above description and practice, the foam remover and aeration system provided by this application have the following advantages compared with the prior art: With the above foam remover, the thorns can effectively eliminate bubbles of various sizes, especially the elimination effect on small bubbles is more remarkable. When the foam remover is driven by an external force, it can rotate relative to the mounting frame. During the rotation process, the rotation of the foam remover and the thorns at different positions of the foam remover can all come into contact with the bubbles, increasing the contact surface within a limited time and improving the elimination efficiency.

[0076] Those of ordinary skill in the art should understand that the above are only specific embodiments of this application and are not used to limit this application. Any modifications, equivalent replacements, improvements, etc. made within the gist of this application shall be included within the protection scope of this application.

Claims

1. A demisting device, characterized in that, Comprising: At least one demister, on which a plurality of thorns for eliminating bubbles are provided, and the plurality of thorns are evenly distributed on the demister; A mounting frame, on which the demister is mounted and can rotate relative to the mounting frame; A driving mechanism, which is connected to the demister and can drive the demister to rotate reciprocally.

2. The demisting device according to claim 1, wherein: The demister comprises a roller shaft and at least one drum connected to the roller shaft, the roller shaft is mounted on the mounting frame, and the roller shaft and / or the drum are connected to the driving mechanism; a plurality of the thorns are provided on each drum.

3. The demisting device according to claim 2, wherein: The driving mechanism comprises at least one impeller, the impeller is connected to the roller shaft and / or the drum, and the impeller can drive the drum to rotate.

4. The demisting device according to any one of claims 1 to 3, wherein: A texture layer and / or a coating are provided on the demister.

5. The demisting device according to any one of claims 1 to 3, wherein: The thorn comprises a main body, and at least one thorn needle is provided on the main body; or at least one thorn rod is provided on the main body, and at least one thorn needle is provided on the thorn rod.

6. The demisting device according to any one of claims 1 to 3, wherein: The demisting device further comprises: a lifting mechanism, which is in transmission connection with the mounting frame, and the lifting mechanism is used for controlling the lifting of the demister.

7. The demisting device according to claim 6, wherein: The demisting device further comprises: a liquid level monitoring mechanism, a power control mechanism and a transmission mechanism, the transmission mechanism is connected to the lifting mechanism, the liquid level monitoring mechanism is used for monitoring and sending a liquid level signal, the power control mechanism is used for receiving the liquid level signal, comparing the liquid level signal with a preset signal, and sending a control instruction to the transmission mechanism according to the comparison result, the transmission mechanism sends the control instruction to the lifting mechanism, and the lifting mechanism adjusts the position of the demister according to the control instruction.

8. The demisting device according to any one of claims 1 to 3, wherein: The demisting device further comprises a pre-demisting structure, which is arranged on the incoming material side of the demister, and the foam size that the pre-demisting structure can eliminate is the same as or not completely the same as the foam size that the demister can eliminate.

9. The demisting device according to any one of claims 1 to 3, wherein: The demisting device further comprises a buffer structure, which is arranged on the discharge side of the demister, and the buffer structure can reduce the moving speed of the foam.

10. An aeration system, characterized in that, Comprising: A water inlet tank, an aeration tank and a drainage tank that are connected in sequence; At least one demisting device according to any one of claims 1 to 9, and the demisting device is arranged in the drainage tank.

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