Wet desulphurization equipment adopting microbubble oxidation

Abstract

The utility model discloses wet desulphurization equipment adopting microbubble oxidation, which relates to the technical field of environmental protection, and comprises a desulphurization tower main body, one end of the desulphurization tower main body is welded with a waste gas inlet interface and an air inlet interface, and the other end of the desulphurization tower main body is welded with a water inlet interface. A slurry discharging connector and a liquid inlet connector are welded at the other end of the desulfurizing tower main body; according to the wet desulphurization equipment adopting microbubble oxidation, SO2 in flue gas reacts with water in sprayed gypsum slurry to form sulfuric acid, the sulfuric acid falls into the funnel and concentratedly falls into the rotary oxidation long cylinder with high height and small diameter, and the microbubble mechanism can generate a plurality of fine microbubbles (the gas-liquid contact area is increased, and the reaction time is prolonged); the reaction effect and the reaction efficiency of sulfuric acid and calcium ions in gypsum slurry can be improved, and meanwhile, the microbubble mechanism positioned in the desulfurizing tower main body is also convenient to expose and is very convenient to replace and maintain.

Description

Technical Field

[0001] The utility model relates to the technical field of environmental protection, in particular to wet desulfurization equipment using microbubble oxidation. Background Art

[0002] Wet flue gas desulfurization equipment is a device for removing sulfur from exhaust gas. The commonly used methods are limestone-gypsum method. The steps are as follows: sulfur dioxide in the exhaust gas reacts with water in the gypsum slurry to form sulfuric acid, and sulfuric acid reacts with calcium ions (including oxygen) in the gypsum slurry to form gypsum hydrate, which is finally separated by a separation device to form gypsum.

[0003] In order to improve the reaction effect and efficiency of sulfuric acid and calcium ions in gypsum slurry, a microbubble device is usually installed in the slurry, which can transport microbubbles containing oxygen to the slurry. However, there are also the following defects: the slurry is located inside the desulfurization tower, and the microbubble device is also located inside the slurry, which makes subsequent cleaning and replacement very inconvenient. Utility Model Content

[0004] The utility model provides a wet desulfurization device adopting microbubble oxidation, which has the advantage of convenient replacement and cleaning of the microbubble device, so as to solve the problems raised in the background technology.

[0005] In order to solve the defect that the microbubble device of the existing wet desulfurization equipment using microbubble oxidation is inconvenient to replace and clean, the utility model provides the following technical solutions: A wet desulfurization equipment using microbubble oxidation, comprising a desulfurization tower body, one end of the desulfurization tower body is welded with an exhaust gas inlet interface and an air inlet interface, the other end of the desulfurization tower body is welded with a slurry discharge interface and a liquid inlet interface, a rotating oxidation cylinder is provided in the desulfurization tower body, an opening and closing mechanism is provided below the rotating oxidation cylinder, the rotating oxidation cylinder is sleeved with a hollow ring, the hollow ring is fixedly connected to the rotating oxidation cylinder, the bottom end of the hollow ring is connected to four air supply and fixing mechanisms, the outer wall of the rotating oxidation cylinder is hinged with four circumferentially distributed movable cover plates, the inner wall bolts of each movable cover plate are installed with a microbubble mechanism, the desulfurization tower body is provided with a funnel sealed and fixedly connected to the inner wall thereof, the bottom end of the funnel is inserted into the rotating oxidation cylinder, and the front of the desulfurization tower body is hinged with an inspection door.

[0006] As a preferred technical solution of the utility model, the rotating oxidation long cylinder sleeve is provided with a support platform rotatably connected thereto, the support platform is fixedly mounted on the front inner wall of the desulfurization tower body, and an extended air inlet hose is connected between the hollow ring and the air inlet interface.

[0007] As a preferred technical solution of the utility model, the air supply and fixing mechanism includes a connecting hose fixedly connected to the bottom end of the hollow ring, the bottom end of the connecting hose is fixedly connected to a sealing joint, a stud is integrally connected to the sealing joint, and the outer wall of the sealing joint is provided with a plurality of first openings.

[0008] As a preferred technical solution of the utility model, the outer wall of the rotating oxidation cylinder is provided with a screw groove matching the stud, the outer wall of the movable cover plate is provided with a T-shaped hole, the sealing joint is clamped on the T-shaped hole, and the inner wall of the T-shaped hole is provided with a second opening.

[0009] As a preferred technical solution of the utility model, the opening and closing mechanism includes a pair of long plates fixedly connected to the inner wall of the front side of the desulfurization tower body, a tooth plate is horizontally slidably connected between the two long plates, the bottom end of the tooth plate is provided with a gear meshingly connected thereto, a motor transmission-connected to the gear is installed on the side wall of one of the long plates, the other end of the gear is connected to the shaft of the other long plate, a sealing plate slidably connected thereto is provided on the top surface of the tooth plate, and a plurality of supporting springs are fixedly connected between the sealing plate and the tooth plate.

[0010] As a preferred technical solution of the utility model, the microbubble mechanism includes a mounting plate fixedly mounted on the inner wall of the movable cover plate by bolts, a plurality of obliquely distributed row holes are integrally connected to the side of the mounting plate away from the movable cover plate, and a card slot is provided on the side of the mounting plate close to the movable cover plate, and an ultrafiltration membrane is clamped on the card slot.

[0011] Compared with the prior art, the utility model provides a wet desulfurization equipment using microbubble oxidation, which has the following beneficial effects:

[0012] 1. This is a wet desulfurization equipment using microbubble oxidation. SO2 in the flue gas reacts with water in the sprayed gypsum slurry to form sulfuric acid, which falls into the funnel and is concentrated into a high-height, small-diameter rotating oxidation cylinder. The microbubble mechanism can produce multiple tiny microbubbles (increasing the gas-liquid contact area and reaction time), which can improve the reaction effect and efficiency of sulfuric acid and calcium ions in the gypsum slurry.

[0013] 2. This is a wet desulfurization equipment using microbubble oxidation. The microbubble mechanism is installed on the inner wall of the hinged movable cover plate. Four movable covers are arranged and distributed circumferentially. The microbubbles are evenly distributed and the use effect is good. When the microbubble mechanism needs to be replaced or maintained, the inspection door is opened and the sealing joint is reversed to make the movable cover plate swing outward, thereby exposing the microbubble mechanism, which is convenient for replacement and maintenance. Since the rotary oxidation cylinder can be rotated, the four microbubble mechanisms can be exposed toward the inspection door, which is very convenient for replacement and maintenance. BRIEF DESCRIPTION OF THE DRAWINGS

[0014] Figure 1 It is a schematic diagram of the structure of the utility model;

[0015] Figure 2 It is a side sectional view of the main body of the desulfurization tower in the utility model;

[0016] Figure 3 For this utility model Figure 2 A magnified view of middle;

[0017] Figure 4 For this utility model Figure 2 Enlarged view of middle B;

[0018] Figure 5 It is a structural schematic diagram of the microbubble mechanism of the utility model.

[0019] In the figure:

[0020] 10. Desulfurization tower body; 20. Waste gas inlet interface; 30. Air inlet interface; 40. Slurry discharge interface; 50. Liquid inlet interface; 60. Rotating oxidation long cylinder; 70. Opening and closing mechanism; 71. Long plate; 72. Tooth plate; 73. Gear; 74. Sealing plate; 75. Support spring; 80. Hollow ring; 90. Air supply and fixing mechanism; 91. Connecting hose; 92. Sealing joint; 93. Stud; 94. First opening; 100. Movable cover; 200. Microbubble mechanism; 210. Mounting plate; 220. Drain hole head; 230. Card slot; 240. Ultrafiltration membrane; 300. Funnel; 400. Support platform; 500. Extended air inlet hose; 600. Screw groove; 610. T-hole; 620. Second opening; 700. Inspection door. DETAILED DESCRIPTION

[0021] The following will be combined with the drawings in the embodiments of the utility model to clearly and completely describe the technical solutions in the embodiments of the utility model. Obviously, the described embodiments are only part of the embodiments of the utility model, not all of the embodiments. Based on the embodiments in the utility model, all other embodiments obtained by ordinary technicians in this field without creative work are within the scope of protection of the utility model.

[0022] See also Figure 1-Figure 5The utility model discloses a wet desulfurization equipment using microbubble oxidation, including a desulfurization tower body 10, one end of which is welded with an exhaust gas inlet interface 20 and an air inlet interface 30, the exhaust gas inlet interface 20 can transport sulfur-containing exhaust gas to the desulfurization tower body 10, the air inlet interface 30 can transport air (oxygen), the other end of the desulfurization tower body 10 is welded with a slurry discharge interface 40 and a liquid inlet interface 50, the slurry discharge interface 40 can discharge sulfuric acid and calcium ions (Ca2+) in gypsum slurry to react to generate gypsum hydrate, the liquid inlet interface 50 can transport gypsum slurry to the internal spraying device of the desulfurization tower body 10, and the desulfurization tower body 10 is provided with a slurry discharge interface 40 and a liquid inlet interface 50. There is a rotating oxidation cylinder 60, an opening and closing mechanism 70 is provided at the bottom of the rotating oxidation cylinder 60, a hollow ring 80 is sleeved on the rotating oxidation cylinder 60, the hollow ring 80 is fixedly connected to the rotating oxidation cylinder 60, and the bottom end of the hollow ring 80 is connected to four air supply and fixing mechanisms 90. The outer wall of the rotating oxidation cylinder 60 is hinged with four circumferentially distributed movable cover plates 100, and the inner wall bolts of each movable cover plate 100 are installed with a microbubble mechanism 200. A funnel 300 is provided in the desulfurization tower body 10 and is sealed and fixedly connected to the inner wall thereof, and the bottom end of the funnel 300 is inserted into the rotating oxidation cylinder 60, and an inspection door 700 is hinged on the front of the desulfurization tower body 10.

[0023] Specifically, the rotating oxidation cylinder 60 is provided with a support platform 400 rotatably connected thereto, the support platform 400 is fixedly mounted on the front inner wall of the desulfurization tower body 10 , and an extended air inlet hose 500 is connected between the hollow ring 80 and the air inlet interface 30 .

[0024] In this embodiment, the setting of the support platform 400 can prevent the rotating oxidation cylinder 60 from being in a suspended state, and can enable the rotating oxidation cylinder 60 to have the function of rotation, and the extended air inlet hose 500 can play a connecting role, and can transport the gas in the air inlet interface 30 to the hollow ring 80. Due to its long length and softness, it will not interfere with the rotation of the rotating oxidation cylinder 60.

[0025] Specifically, the air supply and fixing mechanism 90 includes a connecting hose 91 fixedly connected to the bottom end of the hollow ring 80, the bottom end of the connecting hose 91 is fixedly connected to a sealing joint 92, a stud 93 is integrally connected to the sealing joint 92, the outer wall of the sealing joint 92 is provided with a plurality of first openings 94, the outer wall of the rotating oxidation cylinder 60 is provided with a screw groove 600 matching the stud 93, the outer wall of the movable cover plate 100 is provided with a T-hole 610, the sealing joint 92 is clamped on the T-hole 610, and the inner wall of the T-hole 610 is provided with a second opening 620.

[0026] In this embodiment, the power supply and fixing mechanism 90 can not only realize the fixed connection of the movable cover plate 100, but also realize the connection of gas delivery, and has a simple structure and rich functions.

[0027] Specifically, the opening and closing mechanism 70 includes a pair of long plates 71 fixedly connected to the front inner wall of the desulfurization tower body 10, a tooth plate 72 is horizontally slidably connected between the two long plates 71, and a gear 73 meshingly connected thereto is provided at the bottom end of the tooth plate 72. A motor transmission-connected to the gear 73 is installed on the side wall of one of the long plates 71, and the other end of the gear 73 is axially connected to the other long plate 71. A sealing plate 74 slidably connected thereto is provided on the top surface of the tooth plate 72, and a plurality of support springs 75 are fixedly connected between the sealing plate 74 and the tooth plate 72.

[0028] In the present embodiment, the bottom of the rotating oxidation cylinder 60 can be opened and closed. At the same time, under the elastic force of the support spring 75, not only the sealing after closing can be improved, but also the rotating oxidation cylinder 60 can be pushed and pulled upward. The rotating oxidation cylinder 60 is not easy to shake when it is not subjected to a large force, and there will be no mutual interference with the rotation of the rotating oxidation cylinder 60.

[0029] Specifically, the microbubble mechanism 200 includes a mounting plate 210 fixedly mounted on the inner wall of the movable cover plate 100 by bolts, a plurality of obliquely distributed row hole heads 220 are integrally connected to the side of the mounting plate 210 away from the movable cover plate 100, and a card slot 230 is provided on the side of the mounting plate 210 close to the movable cover plate 100, and an ultrafiltration membrane 240 is clamped on the card slot 230.

[0030] In this embodiment, the hole row head 220 is tilted downward and multiple holes are distributed up and down, so the microbubbles are evenly distributed and not easy to be blocked. When the gas passes through the ultrafiltration membrane 240, microbubbles can be generated and can be discharged into the rotating oxidation cylinder 60 through the hole row head 220.

[0031] The working principle and use process of this utility model:

[0032] The exhaust gas inlet interface 20 conveys sulfur-containing exhaust gas into the desulfurization tower body 10, and the liquid inlet interface 50 conveys gypsum slurry to the spray device inside the desulfurization tower body 10. The water in the gypsum slurry contacts the sulfur-containing exhaust gas to form sulfuric acid to achieve desulfurization. The desulfurized gas flows into the funnel 300 together with the gypsum slurry, and is concentrated into the rotating oxidation cylinder 60. At the same time, the air inlet interface 30 conveys gas and conveys it to the hollow ring 80 through the extended air inlet hose 500, and then passes through the connecting hose 91, the sealing joint 92, and the movable cover plate 100 in sequence. Finally, microbubbles are formed under the action of the ultrafiltration membrane 240 and discharged into the rotating oxidation cylinder 60 through the discharge hole head 220, so that oxygen, sulfuric acid and calcium ions (Ca2+) in the gypsum slurry can fully react (can react to form gypsum hydrates), and the starting motor drives the gear 73 to rotate, and the sealing plate 74 moves accordingly. The bottom of the rotating oxidation cylinder 60 opens, and the gypsum hydrate is discharged, and then discharged through the slurry discharge interface 40.

[0033] When the microbubble mechanism 200 needs to be cleaned or replaced, the inspection door 700 is opened, the sealing joint 92 is reversed, the stud 93 is separated from the screw groove 600, the sealing joint 92 is separated from the T-hole 610, and the movable cover 100 is swung downward. At this time, the entire microbubble mechanism 200 is completely exposed, the microbubble mechanism 200 is removed, and a clean microbubble mechanism 200 is replaced. The movable cover 100 is swung upward and the sealing joint 92 is inserted into the T-hole 610. The sealing joint 92 is rotated forward so that the stud 93 is re-threaded and fixedly connected to the screw groove 600, the rotating oxidation cylinder 60 is rotated, and the above steps are repeated to replace several other microbubble mechanisms 200.

[0034] It should be noted that, in this article, terms such as "comprises", "includes" or any other variations thereof are intended to cover non-exclusive inclusion, so that a process, method, article or device including a series of elements includes not only those elements, but also includes other elements not explicitly listed, or also includes elements inherent to such process, method, article or device. In the absence of more restrictions, an element defined by the sentence "comprises a ..." does not exclude the existence of other identical elements in the process, method, article or device including the element.

[0035] Although embodiments of the present invention have been shown and described, it will be appreciated by those skilled in the art that various changes, modifications, substitutions and variations may be made to the embodiments without departing from the principles and spirit of the present invention, and that the scope of the present invention is defined by the appended claims and their equivalents.

Claims

1. A wet desulfurization equipment using microbubble oxidation, characterized in that: The invention comprises a desulfurization tower body (10), one end of which is welded with an exhaust gas inlet interface (20) and an air inlet interface (30), and the other end of which is welded with a slurry discharge interface (40) and a liquid inlet interface (50). A rotating oxidation cylinder (60) is arranged inside the desulfurization tower body (10), an opening and closing mechanism (70) is arranged below the rotating oxidation cylinder (60), and a hollow ring (80) is sleeved on the rotating oxidation cylinder (60), and the hollow ring (80) is fixedly connected to the rotating oxidation cylinder (60). The bottom end of the hollow ring (80) is connected to four air supply and fixing mechanisms (90), the outer wall of the rotating oxidation cylinder (60) is hinged with four circumferentially distributed movable cover plates (100), and the inner wall bolts of each movable cover plate (100) are installed with a micro bubble mechanism (200), and the desulfurization tower body (10) is provided with a funnel (300) sealed and fixedly connected to the inner wall thereof, and the bottom end of the funnel (300) is inserted into the rotating oxidation cylinder (60), and the front of the desulfurization tower body (10) is hinged with an inspection door (700).

2. The wet desulfurization equipment using microbubble oxidation according to claim 1 is characterized in that: The rotating oxidation cylinder (60) is provided with a support platform (400) rotatably connected thereto, and the support platform (400) is fixedly mounted on the front inner wall of the desulfurization tower body (10), and an extended air inlet hose (500) is connected between the hollow ring (80) and the air inlet interface (30).

3. The wet desulfurization equipment using microbubble oxidation according to claim 1 is characterized in that: The air supply and fixing mechanism (90) comprises a connecting hose (91) fixedly connected to the bottom end of the hollow ring (80), the bottom end of the connecting hose (91) being fixedly connected to a sealing joint (92), a stud (93) being integrally connected to the sealing joint (92), and a plurality of first openings (94) being provided on an outer wall of the sealing joint (92).

4. The wet desulfurization equipment using microbubble oxidation according to claim 3 is characterized in that: The outer wall of the rotating oxidation cylinder (60) is provided with a screw groove (600) matching the stud (93), the outer wall of the movable cover plate (100) is provided with a T-shaped hole (610), the sealing joint (92) is clamped on the T-shaped hole (610), and the inner wall of the T-shaped hole (610) is provided with a second opening (620).

5. The wet desulfurization equipment using microbubble oxidation according to claim 1 is characterized in that: The opening and closing mechanism (70) includes a pair of long plates (71) fixedly connected to the front inner wall of the desulfurization tower body (10), a tooth plate (72) is horizontally slidably connected between the two long plates (71), and a gear (73) meshingly connected therewith is provided at the bottom end of the tooth plate (72), a motor drivingly connected to the gear (73) is installed on the side wall of one of the long plates (71), and the other end of the gear (73) is axially connected to the other long plate (71), and a sealing plate (74) slidably connected thereto is provided on the top surface of the tooth plate (72), and a plurality of supporting springs (75) are fixedly connected between the sealing plate (74) and the tooth plate (72).

6. The wet desulfurization equipment using microbubble oxidation according to claim 1 is characterized in that: The microbubble mechanism (200) comprises a mounting plate (210) fixedly mounted on the inner wall of the movable cover plate (100) by means of bolts; a plurality of obliquely distributed row hole heads (220) are integrally connected to a side of the mounting plate (210) away from the movable cover plate (100); a slot (230) is provided on a side of the mounting plate (210) close to the movable cover plate (100); an ultrafiltration membrane (240) is clamped on the slot (230).

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