A spray tower for flue gas desulfurization and denitrification

Abstract

The utility model discloses a kind of spray towers for flue gas desulfurization and denitrification, including bottom shell, electric lifting piston is sealingly slidably installed in the inside of bottom shell;The top of bottom shell is fixedly connected with upper shell, five spray discs are fixedly installed in the inside of upper shell, and the bottom of five spray discs is fixedly penetrated with multiple spray heads, and pumping assembly is jointly installed between five spray discs;Four groups of hole baffle are fixedly installed in the inside of upper shell, and four groups of hole baffle are respectively arranged between adjacent two spray discs.The utility model in the present application, by the ingenious design of electric lifting piston and hole baffle, multiple spray functions are realized, while reducing the overall height and floor area of equipment.Compared with the structure of multiple spray branch, air distribution plate, blocking plate and the like in the prior art, the design is more compact, suitable for factories or projects with limited space, and easy to install and layout.

Description

Technical Field

[0001] This utility model relates to the field of spray tower technology, and in particular to a spray tower for flue gas desulfurization and denitrification. Background Technology

[0002] With environmental protection becoming a global consensus, the control of industrial emissions is of paramount importance, and flue gas purification technology is directly related to improving air quality. Flue gas desulfurization and denitrification spray towers, as a highly efficient and economical flue gas treatment device, are widely used in power, chemical, metallurgical, and other fields.

[0003] A flue gas desulfurization and denitrification spray tower is a device that purifies flue gas through spraying. Its core principle is to utilize a liquid (usually water or an aqueous solution containing chemical agents) in direct contact with the flue gas, allowing pollutants in the flue gas to be absorbed or reacted by the liquid, thereby achieving the purpose of purifying the flue gas.

[0004] A spray tower, disclosed in prior art (CN222445938U), includes a tower body and a gas supply assembly. The input end of the gas supply assembly is connected to the bottom of the tower body for feeding the gas to be treated into the tower body. The spray assembly includes a liquid supply tank and several spray branches extending into the tower body and located above the gas supply assembly. This spray tower allows the gas to be treated to form multiple sprays within the tower body, which helps to improve the gas treatment effect.

[0005] However, due to the multiple layers of spray branches, air distribution plates, and baffles within the tower, the overall height and footprint of the equipment may be significant, potentially limiting its installation and layout in factories or projects with limited space. Secondly, the circulation component uses an air pump to re-introduce gas from the top of the tower for secondary spraying. However, this process may increase gas flow resistance and lead to higher pump energy consumption; such high-energy operation does not meet energy conservation and environmental protection requirements.

[0006] Therefore, improvements are proposed. Utility Model Content

[0007] This utility model is a spray tower for flue gas desulfurization and denitrification proposed to overcome the shortcomings of the existing technology.

[0008] To achieve the above objectives, the present invention adopts the following technical solution: a spray tower for flue gas desulfurization and denitrification, comprising a bottom shell, wherein an electric lifting piston is slidably and sealed inside the bottom shell;

[0009] The top of the bottom shell is fixedly connected to the upper shell, and five spray discs are fixedly installed inside the upper shell. Multiple nozzles are fixedly connected to the bottom of each of the five spray discs, and a pumping assembly is installed between the five spray discs.

[0010] The upper shell is internally fixedly equipped with four sets of perforated baffles, and the four sets of perforated baffles are respectively located between two adjacent spray plates;

[0011] A smoke inlet pipe is fixedly passed through one side of the outer surface of the upper shell, and the outlet of the smoke inlet pipe is located between the two sets of perforated partitions in the middle.

[0012] Two demisters are symmetrically fixedly installed on the top side of the inner part of the upper housing.

[0013] Furthermore, the electric lifting piston includes an electric push rod, which is fixedly embedded in the inner bottom of the bottom housing. The movable rod of the electric push rod extends through the inner bottom of the bottom housing and slides in a sealed manner with the bottom housing. An L-shaped piston is fixedly connected to the top of the movable rod of the electric push rod, and the L-shaped piston is sealed and fitted with the inner wall of the bottom housing. The L-shaped piston is designed to prevent wastewater from entering the bottom space of the L-shaped piston.

[0014] Furthermore, the pumping assembly includes a water pump, which is fixedly installed on one side of the outer surface of the upper housing. A diversion pipe is fixedly connected to the output end of the water pump. Five straight pipes are fixedly connected to one side of the outer surface of the diversion pipe, and the straight pipes extend through the outer wall of the upper housing to the interior and are fixedly connected to the upper housing. The five straight pipes are fixedly connected to adjacent spray discs respectively. The diversion pipe facilitates the water pump to deliver the aqueous solution containing the agent to each straight pipe.

[0015] Furthermore, each of the four sets of perforated baffles includes a first baffle and a second baffle, and both the first baffle and the second baffle are fixedly installed inside the upper housing and sealed against the L-shaped piston. The bottom of the outer wall of the first baffle is provided with a first through hole, and the top of the second baffle is provided with a second through hole. The first through hole facilitates the passage of flue gas through the first baffle, and the second through hole facilitates the passage of flue gas through the second baffle.

[0016] Furthermore, the second baffle is located between the first baffle and the flue gas inlet pipe, ensuring that the flue gas enters the area between the second baffle and the first baffle from the top and exits from the bottom.

[0017] Furthermore, a drain pipe is fixedly connected to one side of the outer surface of the bottom shell, which facilitates the discharge of wastewater.

[0018] Furthermore, a smoke outlet pipe is fixedly connected to the top of the upper housing, which facilitates the discharge of smoke.

[0019] The beneficial effects of this utility model are:

[0020] In use, this utility model, a spray tower for flue gas desulfurization and denitrification, achieves multi-layer spraying function through the ingenious design of an electric lifting piston and perforated baffles, while reducing the overall height and floor space of the equipment. Compared with the existing technology's multi-layer spray branches, air distribution plates, baffle plates, and other structures, this design is more compact, suitable for factories or projects with limited space, and facilitates installation and layout.

[0021] In use, this utility model discloses a flue gas desulfurization and denitrification spray tower. Through the design of five spray plates and multiple nozzles, the flue gas undergoes multiple spray treatments within the tower, ensuring sufficient contact between the flue gas and the reagents, thus improving the efficiency of desulfurization and denitrification. The perforated baffle design further optimizes the flow path of the flue gas, enhancing the treatment effect. It eliminates the need for an air pump to return the gas from the top of the tower, reducing energy consumption and meeting energy conservation and environmental protection requirements. Attached Figure Description

[0022] To more clearly illustrate the technical solution of this utility model, the drawings used in the description of the specific embodiments will be briefly introduced below. Obviously, the drawings described below are only some embodiments of this utility model. For those skilled in the art, other drawings can be obtained based on these drawings without creative effort.

[0023] Figure 1 : A first-view structural diagram of the present invention;

[0024] Figure 2 : Overall second-view structural diagram of this utility model;

[0025] Figure 3 : A cross-sectional view of this utility model;

[0026] Figure 4 : Schematic diagram of the perforated partition structure of this utility model.

[0027] The attached figures are labeled as follows:

[0028] 1. Bottom shell; 2. Smoke inlet pipe; 3. Upper shell; 4. Smoke outlet pipe; 5. Straight pipe; 6. Diverter pipe; 7. Water pump; 8. Drain pipe; 9. Spray plate; 10. First baffle; 11. First through hole; 12. L-shaped piston; 13. Electric push rod; 14. Demister; 15. Nozzle; 16. Second through hole; 17. Second baffle. Detailed Implementation

[0029] 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 skilled in the art without creative effort are within the protection scope of the present utility model.

[0030] like Figures 1 to 4 As shown, a spray tower for flue gas desulfurization and denitrification is disclosed, comprising a bottom shell 1. An electric lifting piston is slidably installed inside the bottom shell 1. The electric lifting piston includes an electric push rod 13, which is fixedly embedded in the inner bottom of the bottom shell 1. The movable rod of the electric push rod 13 extends through the inner bottom of the bottom shell 1 and slides in a sealed manner with the bottom shell 1. An L-shaped piston 12 is fixedly connected to the top of the movable rod of the electric push rod 13, and the L-shaped piston 12 is sealed and fitted to the inner wall of the bottom shell 1. A sealing gasket is provided on the outer surface of the L-shaped piston 12 to ensure the sealing between the L-shaped piston 12 and the bottom shell 1.

[0031] The top of the bottom housing 1 is fixedly connected to the upper housing 3. Five spray discs 9 are fixedly installed inside the upper housing 3. The spray discs 9 in the middle and on both sides are larger than the remaining two spray discs 9. Multiple nozzles 15 are fixedly connected to the bottom of each of the five spray discs 9. A pumping assembly is installed between the five spray discs 9. The pumping assembly includes a water pump 7, which is fixedly installed on one side of the outer surface of the upper housing 3. A diversion pipe 6 is fixedly connected to the output end of the water pump 7. Five straight pipes 5 are fixedly connected to one side of the outer surface of the diversion pipe 6. The straight pipes 5 penetrate the outer wall of the upper housing 3 and extend into the interior, and are fixedly connected to the upper housing 3. The five straight pipes 5 are fixedly connected to the adjacent spray discs 9 respectively. In use, the inlet of the water pump 7 is connected to an external storage device containing an aqueous solution of the agent.

[0032] Four sets of perforated baffles are fixedly installed inside the upper housing 3, and the four sets of perforated baffles are respectively located between two adjacent spray plates 9. A smoke inlet pipe 2 is fixedly passed through one side of the outer surface of the upper housing 3. The outlet of the smoke inlet pipe 2 is located between the two sets of perforated baffles in the middle. Each of the four sets of perforated baffles includes a first baffle 10 and a second baffle 17. The first baffle 10 and the second baffle 17 are fixedly installed inside the upper housing 3 and are sealed against the L-shaped piston 12. A first through hole 11 is opened at the bottom of the outer wall of the first baffle 10, and a second through hole 16 is opened at the top of the second baffle 17. The second baffle 17 is located between the first baffle 10 and the smoke inlet pipe 2. Sealing strips are fixedly connected to the bottom of the first baffle 10 and the second baffle 17 to ensure the sealing between the first baffle 10, the second baffle 17 and the L-shaped piston 12.

[0033] Two demisters 14 are symmetrically fixedly installed on the top side inside the upper shell 3, which can effectively capture mist particles and slurry droplets entrained in the flue gas, ensuring that the emitted flue gas meets environmental protection standards and reducing secondary pollution to the environment.

[0034] A drain pipe 8 is fixedly connected to one side of the outer surface of the bottom housing 1. The drain pipe 8 is connected to external wastewater treatment equipment during use. If necessary, a control valve can be installed to control the opening and closing of the drain pipe 8.

[0035] The top of the upper housing 3 is fixedly connected to the smoke outlet pipe 4, which is connected to the external smoke exhaust pipe during use to facilitate the discharge of smoke.

[0036] Working principle: The inlet of water pump 7 is connected to an external storage device containing the chemical solution; the inlet pipe 2 is connected to the flue gas duct; the outlet pipe 4 is connected to the exhaust pipe; and the drain pipe 8 is connected to an external wastewater treatment device. During use, water pump 7 operates, delivering the chemical solution to the distribution pipe 6, then through the straight pipe 5 to each spray plate 9, and then spraying it out through the nozzle 15. Next, the flue gas enters the upper housing 3 through the inlet pipe 2, passes through the intermediate spray, and then enters the cavity formed between the first partition 17 and the second partition 10 through the first through hole 16. It then enters the next spray chamber through the second through hole 11, and so on. The flue gas rises after being sprayed into the spray chamber at the edge of the upper housing 3. When it passes through the demister 14, the demister 14 captures the mist particles and slurry droplets entrained in the flue gas. Then the flue gas is discharged through the exhaust pipe 4. After the whole operation has been running for a period of time, the electric push rod 13 drives the L-shaped piston 12 to descend. The bottom of the multiple sets of perforated baffles is still in the wastewater surface. Every once in a while, the L-shaped piston 12 descends once until the L-shaped piston 12 descends to the set position (in actual use, an existing liquid level sensor can be installed to detect the liquid level for easy operation). The wastewater is drained through the drain pipe 8. The drainage must ensure that the water level is higher than the bottom of the multiple sets of perforated baffles.

[0037] In practical use, an existing controller can be installed. The controller is electrically connected to the electric push rod 13 and the water pump 7 to facilitate overall control. The specific data analysis and processing involved to further realize intelligent functions are methods that can be implemented by those skilled in the art based on common knowledge. These methods are not within the scope of this solution. The above description is only to illustrate the beneficial effects that can be achieved by this hardware structure improvement in conjunction with common knowledge.

[0038] The preferred embodiments of this utility model disclosed above are merely illustrative of the present utility model. These preferred embodiments do not exhaustively describe all details, nor do they limit the utility model to any specific implementation. Clearly, many modifications and variations can be made based on the content of this specification. This specification selects and specifically describes these embodiments to better explain the principles and practical applications of this utility model, thereby enabling those skilled in the art to better understand and utilize it. This utility model is limited only by the claims and their full scope and equivalents.

Claims

1. A spray tower for flue gas desulfurization and denitrification, comprising a bottom shell (1), characterized in that: An electric lifting piston is slidably installed inside the bottom housing (1); The top of the bottom housing (1) is fixedly connected to the upper housing (3), and five spray discs (9) are fixedly installed inside the upper housing (3). Multiple nozzles (15) are fixedly connected to the bottom of each of the five spray discs (9), and a pumping assembly is installed between the five spray discs (9). The upper shell (3) is internally fixedly equipped with four sets of perforated partitions, and the four sets of perforated partitions are respectively located between two adjacent spray plates (9); A smoke inlet pipe (2) is fixedly connected to one side of the outer surface of the upper shell (3), and the outlet of the smoke inlet pipe (2) is located between the two sets of perforated partitions in the middle. Two demisters (14) are symmetrically fixedly installed on the top side inside the upper housing (3).

2. The spray tower for flue gas desulfurization and denitrification according to claim 1, characterized in that: The electric lifting piston includes an electric push rod (13), which is fixedly embedded in the inner bottom of the bottom housing (1). The movable rod of the electric push rod (13) extends through the inner bottom of the bottom housing (1) and slides in a sealed manner with the bottom housing (1). An L-shaped piston (12) is fixedly connected to the top of the movable rod of the electric push rod (13), and the L-shaped piston (12) is sealed and fitted with the inner wall of the bottom housing (1).

3. The spray tower for flue gas desulfurization and denitrification according to claim 1, characterized in that: The pumping assembly includes a water pump (7), which is fixedly installed on one side of the outer surface of the upper housing (3). The output end of the water pump (7) is fixedly connected to a diversion pipe (6). Five straight pipes (5) are fixedly connected to one side of the outer surface of the diversion pipe (6). The straight pipes (5) extend through the outer wall of the upper housing (3) to the interior and are fixedly connected to the upper housing (3). The five straight pipes (5) are fixedly connected to adjacent spray discs (9).

4. A spray tower for flue gas desulfurization and denitrification according to claim 2, characterized in that: The four sets of perforated partitions each include a first partition (10) and a second partition (17), and the first partition (10) and the second partition (17) are both fixedly installed inside the upper housing (3) and sealed against the L-shaped piston (12). The bottom of the outer wall of the first partition (10) is provided with a first through hole (11), and the top of the second partition (17) is provided with a second through hole (16).

5. A spray tower for flue gas desulfurization and denitrification according to claim 4, characterized in that: The second partition (17) is located between the first partition (10) and the smoke inlet pipe (2).

6. A spray tower for flue gas desulfurization and denitrification according to claim 1, characterized in that: A drain pipe (8) is fixedly connected to one side of the outer surface of the bottom shell (1).

7. A spray tower for flue gas desulfurization and denitrification according to claim 1, characterized in that: The top of the upper housing (3) is fixedly connected to a smoke outlet pipe (4).

Images