A foaming device

Abstract

The present invention relates to the field of flue gas dust removal, and discloses a foaming device, comprising a horizontally arranged foaming disk, the upper surface of which is evenly distributed with a plurality of fine holes; the foaming disk is a sealed double-layer hollow structure, and a compressed air pipe for air supply is laid in the hollow layer, and a plurality of air holes are opened on the side of the compressed air pipe facing the upper surface of the foaming disk. The present invention solves the problem that the existing flue gas dust removal equipment has low purification efficiency and incomplete flue gas purification. The present invention solves the problem that the existing flue gas dust removal equipment has low purification efficiency and incomplete flue gas purification.

Description

Technical Field

[0001] The invention relates to the field of flue gas dust removal, in particular to a bubbling device. Background Art

[0002] In view of the rapid growth of modern industry, many people have benefited from the so-called economic and material civilization. However, in the production process of industrial growth, many companies often focus on economic interests and ignore the responsibility of companies to protect the natural environment in the industrial process. There are also many companies that are very dedicated in the process of industrial waste treatment, but often do not use the correct method and cannot get perfect results.

[0003] In the industrial production process, coal and biomass-fired steam boilers, hot water boilers, thermal oil boilers and other equipment are often used. These equipment will generate a large amount of flue gas during use. If these generated flue gases are not treated, they will be discharged into the atmosphere and cause environmental pollution. However, the existing dust removal and purification equipment has the problem of low flue gas treatment efficiency and incomplete flue gas purification. Summary of the invention

[0004] Based on the above technical problems, the present invention provides a foaming device, which solves the problems of low purification efficiency and incomplete flue gas purification in existing flue gas dust removal equipment.

[0005] In order to solve the above technical problems, the technical solution adopted by the present invention is as follows:

[0006] A foaming device comprises a horizontally arranged foaming disk, the upper surface of which is evenly distributed with a plurality of fine holes; the foaming disk is a sealed double-layer hollow structure, and a compressed air pipe for air supply is laid in the hollow layer, and a plurality of air holes are opened on the side of the compressed air pipe facing the upper surface of the foaming disk.

[0007] As a preferred embodiment, an arc-shaped funnel is arranged above the bubble disc, and the arc-shaped funnel is arranged coaxially with the bubble disc; the upper surface of the bubble disc corresponding to the opening at the bottom end of the arc-shaped funnel is a solid plane without holes.

[0008] As a preferred manner, the hollow layer of the bubble disk is sealed and separated by a flat strip along the corresponding position of the edge of the solid plane on the upper surface of the bubble disk.

[0009] As a preferred embodiment, the side of the foaming disk is sealed by a flat strip edge seal.

[0010] As a preferred manner, the upper and lower ends of the flat strip are sealed and connected to the foaming disk by screws.

[0011] As a preferred embodiment, a leak-proof gasket is provided at the connection between the flat strip and the upper and lower surfaces of the foaming plate.

[0012] As a preferred method, the arc-shaped funnel is arranged above the bubble plate by an L-shaped supporting foot, the upper end of the vertical side of the L-shaped supporting foot is welded and fixed to the ground of the arc-shaped funnel, and the horizontal side of the L-shaped supporting foot is fixed to the solid plane of the bubble plate by screws.

[0013] As a preferred method, the compressed air pipe is composed of two U-shaped tubes, and the openings at both ends of the U-shaped tube are equipped with air inlet pipe heads for docking with the air supply equipment. The air inlet pipe head extends from the side of the bubble disk, and the connection between the air inlet pipe head and the side of the bubble disk is sealed by a sealing structure.

[0014] As a preferred method, the sealing structure includes a step at the rear end of the intake pipe head, and a threaded connection portion is provided at the front of the step of the intake pipe head; the intake pipe head extends out through a through hole opened on the side of the bubbler disk, and then the anti-leakage gasket is clamped and locked with the step by tightening the nut on the threaded connection portion.

[0015] Compared with the prior art, the present invention has the following beneficial effects:

[0016] (1) The present invention utilizes the bubbling disk structure in conjunction with the spray mechanism in the spray tower to remove dust from the flue gas. The bubbling disk generates bubbles to adsorb flue gas impurities, thereby further improving the purification efficiency of the flue gas dust removal equipment and solving the problem of incomplete purification.

[0017] (2) The present invention has a simple structure, is easy to install and operate, and has a good effect on dust removal and purification of flue gas. BRIEF DESCRIPTION OF THE DRAWINGS

[0018] Figure 1 It is a front view of the present invention.

[0019] Figure 2 A top view of the present invention

[0020] Figure 3 A top view of the bubbling plate.

[0021] Figure 4 Top view of the bubble tray (with the upper panel of the bubble tray removed)

[0022] Figure 5 for Figure 4 An enlarged view of part a in the figure.

[0023] Figure 6 It is a schematic diagram of assembling the present invention in a spray tower.

[0024] Figure 7 This is a schematic diagram of the existing spray tower structure.

[0025] Among them, 1 is an arc-shaped funnel, 2 is an L-shaped supporting foot, 3 is a bubbling plate, 4 is an air inlet pipe head, 5 is a fine hole, 6 is a flat bar, 7 is a compressed air pipe, 8 is an air hole, 9 is a step, 10 is a nut, 11 is a spray mechanism, 12 is a spray tower, 13 is an elbow, and 14 is a bubbling device. DETAILED DESCRIPTION

[0026] 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.

[0027] Unless otherwise defined, the technical terms or scientific terms used in the present disclosure should be understood by people with ordinary skills in the field to which the present disclosure belongs. The "first", "second" and similar words used in the present disclosure do not indicate any order, quantity or importance, but are only used to distinguish different components. "Include" or "comprise" and similar words mean that the elements or objects appearing before the word cover the elements or objects listed after the word and their equivalents, without excluding other elements or objects. "Connect" or "connected" and similar words are not limited to physical or mechanical connections, but can include electrical connections, whether direct or indirect. "Up", "down", "left", "right" and the like are only used to indicate relative positional relationships. When the absolute position of the described object changes, the relative positional relationship may also change accordingly.

[0028] Embodiment 1:

[0029] See also Figures 1 to 7 A foaming device comprises a horizontally arranged foaming disk 3, on the upper surface of which a plurality of fine holes 5 are evenly distributed; the foaming disk 3 is a sealed double-layer hollow structure and a compressed air pipe 7 for air supply is laid in the hollow layer thereof, and a plurality of air holes 8 are opened on the side of the compressed air pipe 7 facing the upper surface of the foaming disk 3.

[0030] The working principle of the bubbling device is to pass a proper amount of compressed gas into the compressed air pipe 7, and use the fine holes 5 on the upper surface of the bubbling disk 3 to inject a proper amount of pressurized gas into the bubbling chamber (the bubbling chamber refers to the hollow interlayer space of the bubbling disk 3). When the pressurized gas flows outward from the fine holes 5, the bubbling liquid with appropriate viscosity and surface tension attached to the fine holes 5 can be blown outward to form bubbles, and the bubbles float upward and meet the flue gas in the bubble chamber, and the impurities in the flue gas are absorbed by the large surface area and viscosity of the bubbles. After the bubbles absorb a certain amount of impurities, the impurities contained in the flue gas will destroy the surface tension of the bubbles, causing the bubbles to rupture. The bubbles that rupture instantly will be attached to impurities at the same time because they are liquids with viscosity, which increases the humidity of the impurities, increases the specific gravity and sinks. At this time, due to the humidity, the flue gas can also be cooled.

[0031] Some bubbles will also adhere to or cover impurities without breaking and continue to float upward. Figure 6 As shown, the bubbling device 14 is generally installed in the spray tower 12 to adsorb and remove dust from the flue gas. Due to the existence of the spray mechanism 11, the bubbles that continue to float upward will eventually burst and sink after being sprayed by the spray water of the spray mechanism 11 above. The sinking bubbling liquid and the spray liquid that falls down will adhere to the bubbling disk 3, and the rest will fall into the water storage tank. The bubbling liquid adhered to the bubbling disk 3 will circulate through continuous air supply and bubbling, thereby achieving the function of purifying and removing dust by dissolving impurities in the flue gas in water. In this circulation process, the bubbling agent can be added to the spray water to realize the continuous circulation of the bubbling liquid to the bubbling device 14 by using the spray mechanism 11. In addition, the amount of bubbling liquid addition and compressed air supply can be appropriately adjusted according to the current situation to meet the flue gas purification needs.

[0032] The selection of foaming liquid, such as coconut oil foaming agent commonly used in the market, is a good foaming material. However, since coconut oil foaming agent will form harmful substances such as nitrosamines in an acidic environment, it needs to be used with caution. If coconut oil foaming agent is used, the pH value of the foaming liquid should be monitored at all times to keep it within the range of 6.5 to 7 to avoid the formation of nitrosamines.

[0033] Furthermore, an arc-shaped funnel 1 is arranged above the bubble disc 3, and the arc-shaped funnel 1 is coaxially arranged with the bubble disc 3; the upper surface of the bubble disc corresponding to the bottom opening of the arc-shaped funnel 1 is a solid plane without holes.

[0034] like Figure 7As shown, the existing spray tower 12 has an elbow 13 at its air inlet to guide the flue gas entering the spray tower 12 to be discharged vertically downward. The purpose of this is that the flue gas is discharged downward and collides with the bottom of the tower, and some particulate impurities in the flue gas will stall due to the collision and settle at the bottom of the tower; in addition, since the flue gas is generally drawn into the spray tower 12 by a fan and other equipment, when its speed is too fast, it will be quickly discharged through the exhaust port of the spray tower 12, so that the spray mechanism 11 of the spray tower 12 does not have enough time to spray it, and the collision of the flue gas with the bottom of the tower will cause the flue gas to stall and slow down, so that the flue gas can slowly pass through the spray tower 12 for purification and discharge.

[0035] The function of the arc-shaped funnel 1 is that when the flue gas entering the spray tower 12 rushes downward, part of the flue gas naturally rushes upward along the arc due to the concave arc surface of the arc-shaped funnel 1, so that it is better dispersed, so as to contact with the rising bubbles and be coated and precipitated by the broken bubbles and dissolved in the water. The remaining part is downward from the bottom opening of the arc-shaped funnel 1 and collides with the solid plane on the upper surface of the bubble disk without holes, and then goes up along the convex arc surface of the arc-shaped funnel 1. The rising process of the flue gas can drive the bubbles to rise together, thereby providing buoyancy for the bubbles. The solid plane is due to the large initial velocity of the flue gas entering the spray tower 12. If there are fine holes 5 on the bubble disk 3 corresponding to the bottom opening of the arc-shaped funnel 1, the bubbles will be directly broken by the flue gas, affecting the bubble effect. However, after the flue gas is decelerated by the solid plane, it will not directly break through the bubbles, thereby driving the bubbles to rise.

[0036] Furthermore, the hollow layer of the bubbler disc 3 is sealed and separated by a flat strip 6 at a position corresponding to the edge of the solid plane on the upper surface of the bubbler disc 3. Since there are no fine holes 5 for bubble generation on the solid plane, the first flat strip 6 is used to separate it from the hollow layer of the region, thereby reducing the air supply area and enhancing the air supply efficiency. The side of the bubbler disc 3 is also sealed by the flat strip 6.

[0037] Preferably, the upper and lower ends of the flat strip 6 are sealed and connected to the bubble disc 3 by screws. In actual production, the flat strip 6 and the bubble disc 3 can be connected in various ways such as welding. However, in order to facilitate the maintenance of the bubble disc 3, screw holes can be set at the upper and lower ends of the flat strip 6, and the bubble disc 3 is also provided with screw holes at the corresponding positions, and then the flat strip 6 and the bubble disc 3 are sealed and connected by screws, which can facilitate the disassembly of the bubble disc 3 during later maintenance. In order to enhance the connection effect, a leakproof gasket can be provided at the connection between the flat strip 6 and the upper and lower surfaces of the bubble disc 3. The leakproof gasket is used to ensure the sealing of the interlayer of the bubble disc 3 and ensure the bubble effect.

[0038] Furthermore, the arc-shaped funnel 1 is erected above the bubbling plate 3 by means of an L-shaped support foot 2. The upper end of the vertical side of the L-shaped support foot 2 is welded and fixed to the ground of the arc-shaped funnel 1. The horizontal side of the L-shaped support foot 2 is fixed to the solid plane of the bubbling plate 3 by means of screws. The arc-shaped funnel 1 can be erected more conveniently by means of the L-shaped support foot 2. The L-shaped support foot 2 is installed on the solid plane of the bubbling plate 3. Since the solid plane does not bear the bubbling effect and does not require the hollow layer therein to be sealed, it is convenient to install the L-shaped support foot 2, because even if the sealing of the hollow layer corresponding to the solid plane is destroyed during installation, the bubbling effect of the bubbling device 14 will not be affected.

[0039] Embodiment 2:

[0040] See also Figures 1 to 7 This embodiment is further optimized on the basis of embodiment 1, specifically:

[0041] The compressed air pipe 7 is composed of two U-shaped pipes, and the openings at both ends of the U-shaped pipe are equipped with an air inlet pipe head 4 for docking with the air supply equipment. The air inlet pipe head 4 extends from the side of the bubbler plate 3, and the air inlet pipe head 4 is sealed and connected to the side of the bubbler plate 3 through a sealing structure. The U-shaped pipe structure allows the compressed air pipe 7 to be distributed as evenly as possible in the interlayer of the bubbler plate 3, so that the compressed air pipe 7 can supply air evenly.

[0042] Furthermore, the sealing structure includes a step 9 provided at the rear end of the air inlet pipe head 4, and a threaded connection portion is provided at the front of the step 9 of the air inlet pipe head 4; the air inlet pipe head 4 extends out through a through hole provided on the side of the bubbling disk 3, and then the nut 10 is tightened on the threaded connection portion to clamp and lock the anti-leakage gasket with the step 9. The anti-leakage gasket is a rubber structure, which will deform when pressed by the nut to make it fit the side of the bubbling disk 3, thereby sealing the side gap, thereby preventing leakage at the installation connection between the air inlet pipe head 4 and the bubbling disk 3.

[0043] The other parts of this embodiment are the same as those of Embodiment 1 and will not be described again here.

[0044] The above is an embodiment of the present invention. The above embodiments and the specific parameters in the embodiments are only for the purpose of clearly describing the verification process of the invention, and are not intended to limit the patent protection scope of the present invention. The patent protection scope of the present invention shall still be subject to its claims, and any equivalent structural changes made by using the contents of the description and drawings of the present invention shall be included in the protection scope of the present invention.

Claims

1. A foaming device, characterized in that: It comprises a horizontally arranged bubbling plate (3), wherein a plurality of fine holes (5) are evenly distributed on the upper surface of the bubbling plate (3); The bubbling disk (3) is a sealed double-layer hollow structure, and a compressed air pipe (7) for air supply is laid in the hollow layer thereof, and a plurality of air holes (8) are opened on the side of the compressed air pipe (7) facing the upper surface of the bubbling disk (3); A circular arc-shaped funnel (1) is arranged above the foaming disk (3), and the circular arc-shaped funnel (1) and the foaming disk (3) are arranged coaxially; The upper surface of the bubble disk corresponding to the bottom opening of the arc-shaped funnel (1) is a solid plane without holes.

2. A foaming device according to claim 1, characterized in that: The hollow layer of the bubble disc (3) is sealed and separated by a flat strip (6) along the corresponding position of the edge of the solid plane of the upper surface of the bubble disc (3).

3. A foaming device according to claim 2, characterized in that: The side of the foaming plate (3) is sealed by a flat strip (6).

4. A foaming device according to claim 2 or 3, characterized in that: The upper and lower ends of the flat strip (6) are sealedly connected to the foaming disk (3) via screws.

5. A foaming device according to claim 4, characterized in that: A leak-proof gasket is laid at the connection between the flat strip (6) and the upper and lower surfaces of the foaming plate (3).

6. A foaming device according to claim 2, characterized in that: The arc-shaped funnel (1) is erected above the bubbling plate (3) via an L-shaped support foot (2); the upper end of the vertical side of the L-shaped support foot (2) is welded and fixed to the ground of the arc-shaped funnel (1); and the horizontal side of the L-shaped support foot (2) is fixed to the solid plane of the bubbling plate (3) via screws.

7. A foaming device according to claim 1, characterized in that: The compressed air pipe (7) is composed of two U-shaped pipes, and the openings at both ends of the U-shaped pipe are equipped with air intake pipe heads (4) for docking with air supply equipment. The air intake pipe head (4) extends from the side of the bubble disk (3), and the connection between the air intake pipe head (4) and the side of the bubble disk (3) is sealed by a sealing structure.

8. A foaming device according to claim 7, characterized in that: The sealing structure comprises a step (9) provided at the rear end of the air inlet pipe head (4), and a threaded connection portion is provided at the front of the step (9) of the air inlet pipe head (4); the air inlet pipe head (4) extends out through a through hole provided on the side of the bubbler disk (3), and then a nut (10) is screwed on the threaded connection portion to clamp and lock the air leakage-proof gasket with the step (9).

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