Purifying equipment for desulfurization and denitrification in environmental protection engineering

Abstract

The utility model relates to purification equipment for desulfurization and denitrification in environmental protection engineering, which belongs to the technical field of environmental protection engineering and comprises a base and a desulfurization purification tower fixedly connected to the top of the base, the top of the base is fixedly connected with a denitrification purification tower, and a multi-stage tower plate structure capable of improving full contact of gas and liquid is arranged in the desulfurization purification tower. The multi-stage tower plate structure comprises a bubble cap tower plate fixedly connected to the inner wall of the desulfurization purification tower, and a bubble cap is arranged at the top of the bubble cap tower plate. According to the purification equipment for desulfurization and denitrification in the environmental protection engineering, the bubble cap tower plates are arranged, gas enters the bubble cap from the bubble cap tower plate at the bottommost part through the gas rising pipe and is sprayed out from the small holes in the bubble cap so as to form bubbles, and liquid flows to the bubble cap tower plate at the lower layer from the bubble cap tower plate at the topmost part through a channel between the first overflow plate and the desulfurization purification tower; the gas is in contact with the surface of the bubble cap, so that the gas-liquid full contact effect is realized, and the desulfurization effect is improved.

Description

Technical Field

[0001] This utility model relates to the field of environmental engineering technology, specifically to a purification device for desulfurization and denitrification in environmental engineering. Background Technology

[0002] Desulfurization and denitrification in environmental protection engineering are crucial measures for reducing air pollutant emissions and preventing environmental problems such as acid rain and photochemical smog. Desulfurization refers to the process of removing sulfur-containing compounds such as sulfur dioxide produced during combustion. Sulfur dioxide is one of the main substances that form acid rain, causing serious damage to soil, water bodies, and buildings. Denitrification mainly removes nitrogen oxides, including nitric oxide and nitrogen dioxide. Nitrogen oxides not only contribute to acid rain but also lead to photochemical smog, adversely affecting human health and the ecological environment.

[0003] Purification equipment is needed in desulfurization and denitrification processes in environmental protection projects. Chinese utility model patent CN214437387U discloses a purification device for desulfurization and denitrification in environmental protection projects, including a water storage tank. A movable cover is movably installed on the left side of the top of the inner cavity of the water storage tank. Supports are fixedly installed on both sides of the water storage tank, and a fan is fixedly installed on the left side of each support. This utility model uses a motor to drive the stirring rod on the surface of the first sliding shaft to rotate, effectively making the flue gas and harmful gases passing through the filter screen more uniform and improving the filter screen's filtration capacity. The rotating device drives the activated carbon adsorption cotton on the surface of the second sliding shaft to rotate, effectively adsorbing the flue gas and harmful gases, thus significantly improving the purification capacity of the device. The water in the storage tank humidifies and purifies the harmful gases entering the tank, solving the problem of poor purification effect commonly found in desulfurization and denitrification purification equipment used in environmental protection projects on the market.

[0004] However, during the use of this utility model, since desulfurization and denitrification in environmental protection projects require two different processes, and this device only uses a single device for desulfurization and denitrification treatment, the treatment may be insufficient and unable to meet production needs. Therefore, a purification device for desulfurization and denitrification in environmental protection projects is proposed to solve the problems mentioned above. Utility Model Content

[0005] To address the shortcomings of existing technologies, this utility model provides a purification device for desulfurization and denitrification in environmental engineering projects. It has the advantage of improving processing efficiency and solves the problem that because desulfurization and denitrification in environmental engineering projects require two different processes, this device only uses a single unit for desulfurization and denitrification, which leads to insufficient processing and failure to meet production needs.

[0006] To achieve the above objectives, this utility model provides the following technical solution: a purification device for desulfurization and denitrification in environmental protection engineering, including a base and a desulfurization purification tower fixedly connected to the top of the base. The denitrification purification tower is fixedly connected to the top of the base, and the desulfurization purification tower is internally equipped with a multi-stage tower plate structure that can improve the full contact between gas and liquid.

[0007] The multi-stage tower plate structure includes a bubble cap tower plate fixedly connected to the inner wall of the desulfurization purification tower. A bubble cap is provided on the top of the bubble cap tower plate. A riser pipe extending into the inside of the bubble cap is fixedly connected to the upper surface of the bubble cap tower plate. An installation rod penetrating the riser pipe is slidably connected to the top of the bubble cap. One end of the installation rod is fixedly connected to the inner wall of the bubble cap. The top end of the installation rod is threaded with an installation block that can fix the bubble cap. A communication port connected to the riser pipe is fixedly opened inside the bubble cap tower plate.

[0008] Furthermore, the number of bubble cap trays is five, and the five bubble cap trays are staggered inside the desulfurization purification tower. Small holes communicating with the interior of the bubble cap are opened on the outer wall of the bubble cap.

[0009] Furthermore, a first overflow plate is fixedly connected to one side of the bubble cap tray, and a long overflow plate is fixedly connected to one side of the bottom bubble cap tray.

[0010] Furthermore, a gas transmission pipe is fixedly connected to the side of the desulfurization purification tower away from the denitrification purification tower, and a connecting pipe is fixedly connected between the top of the desulfurization purification tower and the denitrification purification tower.

[0011] Furthermore, a spray steel pipe is fixedly installed on the inner wall of the desulfurization purification tower, one end of which is fixedly connected to a conveying pipe extending to the outside of the desulfurization purification tower, and an atomizing nozzle is fixedly installed on the side of the spray steel pipe near the bubble cap tower plate.

[0012] Furthermore, a floating valve tower plate is fixedly connected to the inner wall of the denitrification purification tower, a floating plate is fixedly connected to the upper surface of the floating valve tower plate, an air inlet adapted to the floating plate is opened inside the floating valve tower plate, and a second overflow plate is fixedly connected to one side of the floating valve tower plate.

[0013] Furthermore, a demister is fixedly installed at the top inside the denitrification purification tower, and an exhaust pipe extending into the top of the denitrification purification tower is fixedly connected to it. Guide plates are fixedly connected to the inner bottom walls of both the desulfurization purification tower and the denitrification purification tower.

[0014] Compared with the prior art, this utility model provides a purification device for desulfurization and denitrification in environmental protection engineering, which has the following beneficial effects:

[0015] 1. The desulfurization and denitrification purification equipment in this environmental protection project uses bubble cap towers. Gas enters the bubble cap from the bottom bubble cap tower through the riser pipe and is ejected from the small holes on the bubble cap, thus forming bubbles. Liquid flows from the top bubble cap tower through the channel between the first overflow plate and the desulfurization purification tower to the lower bubble cap tower, where it comes into contact with the gas on the surface of the bubble cap, thereby achieving full gas-liquid contact and improving the desulfurization effect.

[0016] 2. The desulfurization and denitrification purification equipment used in this environmental protection project, through the installation of a denitrification purification tower and connecting pipelines, can transport the desulfurized gas into the denitrification purification tower. By installing floating valve tower plates, the denitrification effect inside the denitrification purification tower can be good, thereby achieving overall desulfurization and denitrification treatment. This solves the problem that in environmental protection projects, desulfurization and denitrification require two different processes, but this device only uses a single unit for desulfurization and denitrification treatment, which may lead to insufficient treatment and failure to meet production needs. Attached Figure Description

[0017] Figure 1 This is a cross-sectional view of the structure of this utility model;

[0018] Figure 2 This is a schematic diagram of the multi-stage tower plate structure of this utility model;

[0019] Figure 3 This utility model Figure 2 A magnified structural diagram of structure A is shown below;

[0020] Figure 4 This is a three-dimensional structural view of the floating valve tower plate of this utility model.

[0021] In the diagram: 1. Base, 2. Desulfurization purification tower, 3. Denitrification purification tower, 4. Bubble cap tower plate, 5. Bubble cap, 6. Gas supply pipe, 7. Mounting rod, 8. Fixing block, 9. Connecting port, 10. First overflow plate, 11. Long overflow plate, 12. Gas supply pipe, 13. Connecting pipe, 14. Spray steel pipe, 15. Conveying pipe, 16. Atomizing nozzle, 17. Floating valve tower plate, 18. Floating plate, 19. Air inlet, 20. Second overflow plate, 21. Demister, 22. Exhaust pipe, 23. Guide plate. Detailed Implementation

[0022] The technical solutions of the present utility model will be clearly and completely described below with reference to the accompanying drawings of the embodiments. Obviously, the described embodiments are only some embodiments of the present utility model, and not all embodiments. Based on the embodiments of the present utility model, all other embodiments obtained by those of ordinary skill in the art without creative effort are within the protection scope of the present utility model.

[0023] Please see Figures 1 to 4This embodiment of an environmental protection engineering desulfurization and denitrification purification device includes a base 1 and a desulfurization purification tower 2 fixedly connected to the top of the base 1. A denitrification purification tower 3 is fixedly connected to the top of the base 1. The desulfurization purification tower 2 is equipped with a multi-stage tower plate structure that can improve the full contact between gas and liquid. The multi-stage tower plate structure includes a bubble cap tower plate 4 fixedly connected to the inner wall of the desulfurization purification tower 2. A bubble cap 5 is provided on the top of the bubble cap tower plate 4. A riser pipe 6 extending into the bubble cap 5 is fixedly connected to the upper surface of the bubble cap tower plate 4. An installation rod 7 penetrating the riser pipe 6 is slidably connected to the top of the bubble cap 5. One end of the installation rod 7 is fixedly connected to the inner wall of the bubble cap 5. An installation block 8 that can fix the bubble cap 5 is threaded to the top end of the installation rod 7. A communication port 9 connected to the riser pipe 6 is fixedly opened inside the bubble cap tower plate 4.

[0024] There are five bubble cap trays 4, which are staggered inside the desulfurization purification tower 2. Small holes are opened on the outer wall of the bubble cap 5 to communicate with its interior. A first overflow plate 10 is fixedly connected to one side of the bubble cap tray 4, and a long overflow plate 11 is fixedly connected to one side of the bottom bubble cap tray 4.

[0025] It should be noted that by setting up bubble cap tray 4, gas enters the bubble cap 5 from the bottom bubble cap tray 4 through the riser pipe 6, and is sprayed out from the small holes on the bubble cap 5, thus forming bubbles. Liquid flows from the top bubble cap tray 4 through the channel between the first overflow plate 5 and the desulfurization purification tower 2 to the lower bubble cap tray 4, and comes into contact with the gas on the surface of the bubble cap 5, thereby achieving the effect of full gas-liquid contact and improving the desulfurization effect.

[0026] In this embodiment, a gas transmission pipe 12 is fixedly connected to the side of the desulfurization purification tower 2 away from the denitrification purification tower 2, and a connecting pipe 13 is fixedly connected between the top of the desulfurization purification tower 2 and the denitrification purification tower 2.

[0027] In this embodiment, a spray steel pipe 14 is fixedly installed on the inner wall of the desulfurization purification tower 2. One end of the spray steel pipe 14 is fixedly connected to a conveying pipe 15 extending to the outside of the desulfurization purification tower 2. An atomizing nozzle 16 is fixedly installed on the side of the spray steel pipe 14 near the bubble cap tower plate 4. There are two spray steel pipes 14, which are distributed inside the desulfurization purification tower 2 and the denitrification purification tower 3, respectively.

[0028] It should be noted that the liquid sprayed from the spray steel pipe 14 on the desulfurization purification tower 2 is limestone slurry, while the liquid sprayed from the spray steel pipe 14 on the denitrification purification tower 3 is urea reducing agent.

[0029] In this embodiment, a floating valve tower plate 17 is fixedly connected to the inner wall of the denitrification purification tower 3, a float plate 19 is fixedly connected to the upper surface of the floating valve tower plate 17, an air inlet 18 adapted to the float plate 19 is opened inside the floating valve tower plate 17, a second overflow plate 20 is fixedly connected to one side of the floating valve tower plate 17, and there are four floating valve tower plates 17. The floating valve tower plates 17 are distributed in the same way as the bubble cap tower plate 4.

[0030] In this embodiment, a demister 21 is fixedly installed on the top of the denitrification purification tower 3, and an exhaust pipe 22 extending into the top of the denitrification purification tower 3 is fixedly connected to the top of the denitrification purification tower 3. A guide plate 23 is fixedly connected to the bottom wall of both the desulfurization purification tower 2 and the denitrification purification tower 3, and a drain pipe is fixedly connected to the front of both the desulfurization purification tower 2 and the denitrification purification tower 3.

[0031] The working principle of the above embodiments is as follows:

[0032] First, the staff transports the gas to be purified to the desulfurization purification tower 2 through the gas transmission pipe 12. Then, limestone slurry is evenly sprayed into the desulfurization purification tower 2 through the transmission pipe 15 and the atomizing nozzle 16. At this time, the special structure of the bubble cap tower plate 4 is used to achieve the effect of desulfurization of the gas. Then, the gas is transported to the denitrification purification tower 3 through the connecting pipe 13. Then, a reducing agent is sprayed into the denitrification purification tower 3 to carry out denitrification treatment.

[0033] It should be noted that, in this document, relational terms such as "first" and "second" are used only to distinguish one entity or operation from another, and do not necessarily require or imply any such actual relationship or order between these entities or operations. Furthermore, the terms "comprising," "including," or any other variations thereof are intended to cover non-exclusive inclusion, such that a process, method, article, or apparatus that comprises a list of elements includes not only those elements but also other elements not expressly listed, or elements inherent to such a process, method, article, or apparatus. Without further limitations, an element defined by the phrase "comprising one..." does not exclude the presence of other identical elements in the process, method, article, or apparatus that includes said element.

[0034] Although embodiments of the present invention have been shown and described, it will be understood by those skilled in the art that various changes, modifications, substitutions and alterations can be made to these embodiments without departing from the principles and spirit of the present invention, the scope of which is defined by the appended claims and their equivalents.

Claims

1. A purification device for desulfurization and denitrification in environmental protection engineering, comprising a base (1) and a desulfurization purification tower (2) fixedly connected to the top of the base (1), characterized in that: The base (1) is fixedly connected to the top of the denitrification purification tower (3), and the desulfurization purification tower (2) is equipped with a multi-stage tower plate structure that can improve the full contact between gas and liquid. The multi-stage tower plate structure includes a bubble cap tower plate (4) fixedly connected to the inner wall of the desulfurization purification tower (2). A bubble cap (5) is provided on the top of the bubble cap tower plate (4). A riser pipe (6) extending into the bubble cap (5) is fixedly connected to the upper surface of the bubble cap tower plate (4). An installation rod (7) penetrating the riser pipe (6) is slidably connected to the top of the bubble cap (5). One end of the installation rod (7) is fixedly connected to the inner wall of the bubble cap (5). An installation block (8) capable of fixing the bubble cap (5) is threaded to the top of the installation rod (7). A communication port (9) communicating with the riser pipe (6) is fixedly opened inside the bubble cap tower plate (4).

2. The purification equipment for desulfurization and denitrification in environmental protection engineering according to claim 1, characterized in that: The number of bubble cap trays (4) is five, and the five bubble cap trays (4) are staggered inside the desulfurization purification tower (2). The outer wall of the bubble cap (5) is provided with small holes that communicate with its interior.

3. The purification equipment for desulfurization and denitrification in environmental protection engineering according to claim 1, characterized in that: A first overflow plate (10) is fixedly connected to one side of the bubble cap tray (4), and a long overflow plate (11) is fixedly connected to one side of the bottom bubble cap tray (4).

4. The purification equipment for desulfurization and denitrification in environmental protection engineering according to claim 1, characterized in that: A gas transmission pipe (12) is fixedly connected to the side of the desulfurization purification tower (2) away from the denitrification purification tower (3), and a connecting pipe (13) is fixedly connected between the top of the desulfurization purification tower (2) and the denitrification purification tower (3).

5. The purification equipment for desulfurization and denitrification in environmental protection engineering according to claim 1, characterized in that: A spray steel pipe (14) is fixedly installed on the inner wall of the desulfurization purification tower (2). One end of the spray steel pipe (14) is fixedly connected to a conveying pipe (15) extending to the outside of the desulfurization purification tower (2). An atomizing nozzle (16) is fixedly installed on the side of the spray steel pipe (14) near the bubble cap tower plate (4).

6. The purification equipment for desulfurization and denitrification in environmental protection engineering according to claim 1, characterized in that: A floating valve tower plate (17) is fixedly connected to the inner wall of the denitrification purification tower (3). A float plate (19) is fixedly connected to the upper surface of the floating valve tower plate (17). An air inlet (18) adapted to the float plate (19) is opened inside the floating valve tower plate (17). A second overflow plate (20) is fixedly connected to one side of the floating valve tower plate (17).

7. The purification equipment for desulfurization and denitrification in environmental protection engineering according to claim 1, characterized in that: A demister (21) is fixedly installed on the top of the denitrification purification tower (3), and an exhaust pipe (22) extending into the top of the denitrification purification tower (3) is fixedly connected to it. A guide plate (23) is fixedly connected to the bottom wall of both the desulfurization purification tower (2) and the denitrification purification tower (3).

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