A boiler gas sulfur dioxide treatment structure

Abstract

The utility model provides a kind of boiler gas sulfur dioxide processing structure, belong to boiler gas processing technical field, including base, shell, air inlet pipe and air outlet pipe, the inner side wall of shell is rotatably connected with rotating support, shell is fixedly connected with powder adding assembly, powder adding assembly includes the box body of fixed connection in the shell side wall, the bottom of rotating support is fixedly connected with connecting plate, the bottom of connecting plate is fixedly connected with fixed frame, the side wall of fixed frame is fixedly connected with spring, the end of spring is fixedly connected with spring ball, the bottom of fixed frame is fixedly connected with push rod, the outer side wall of box body is fixedly connected with fixed rod, torsion spring is set on fixed rod, the bottom of fixed rod is rotatably connected with sealing plate, the end of sealing plate is fixedly connected with boss, the utility model, by adding a small amount of lime powder to lower limestone and suspension liquid for many times, it is favorable for limestone suspension liquid to mix lime powder faster, and the new suspension liquid generated is favorable for improving desulfurization efficiency.

Description

Technical Field

[0001] This utility model relates to the field of boiler gas treatment technology, and more specifically, to a structure for treating sulfur dioxide in boiler gas. Background Technology

[0002] Sulfur dioxide in boiler gases is one of the main pollutants produced during fuel combustion, especially in boilers burning coal, oil, or sulfur-containing industrial raw materials. When sulfur in fuel reacts with oxygen at high temperatures, it produces sulfur dioxide. Its emissions not only contribute to acid rain formation, harming ecosystems and buildings, but also irritate the human respiratory system, exacerbating diseases such as asthma. To control sulfur dioxide emissions, modern boilers are often equipped with sulfur dioxide treatment systems.

[0003] Existing boiler sulfur dioxide treatment structures mainly rely on wet flue gas desulfurization (FGD) technology, which uses limestone slurry as an absorbent to remove sulfur dioxide from flue gas. While this system can effectively reduce sulfur dioxide emissions under normal conditions, it exhibits significant limitations when dealing with high concentrations of sulfur dioxide in the flue gas. Due to the limited solubility of limestone in water, its reaction rate with sulfur dioxide is relatively slow, resulting in a significant amount of sulfur dioxide remaining after desulfurization even at high concentrations.

[0004] How to design a boiler gas sulfur dioxide treatment structure to improve these problems has become an urgent problem to be solved by those skilled in the art. Utility Model Content

[0005] To overcome the above deficiencies, this utility model provides a boiler gas sulfur dioxide treatment structure, which aims to improve the problems mentioned in the background.

[0006] This utility model is implemented as follows:

[0007] This utility model provides a structure for treating sulfur dioxide in boiler gas, including a base, a shell, an inlet pipe, and an outlet pipe. A rotating bracket is rotatably connected to the inner side wall of the shell. A powder-adding assembly is fixedly connected to the shell. The powder-adding assembly includes a box fixedly connected to the side wall of the shell. A connecting plate is fixedly connected to the bottom of the rotating bracket. A fixing frame is fixedly connected to the bottom of the connecting plate. A spring is fixedly connected to the side wall of the fixing frame. A ball is fixedly connected to the end of the spring. A lever is fixedly connected to the bottom of the fixing frame. A fixing rod is fixedly connected to the outer side wall of the box. A torsion spring is sleeved on the fixing rod. A sealing plate is rotatably connected to the bottom end of the fixing rod. A boss is fixedly connected to the end of the sealing plate. The end of the boss is arc-shaped.

[0008] Preferably, the top of the base is fixedly connected to the housing, the housing is fixedly connected to the air inlet pipe and the air outlet pipe, and the air inlet pipe and the air outlet pipe are connected to the housing.

[0009] Preferably, the position of the lever corresponds to the position of the boss, the bottom of the box is trapezoidal, the bottom of the box has a powder discharge port located inside the shell, and the sealing plate blocks the powder discharge port.

[0010] Preferably, the top of the box is provided with a powder filling port, which is located on the outside of the shell.

[0011] Preferably, the top end of the torsion spring is fixedly connected to the outer wall of the fixing rod, and the bottom end of the torsion spring is fixedly connected to the sealing plate.

[0012] Preferably, the outer wall of the housing is provided with multiple pipes, the bottom end of the pipes is connected to the lower outer wall of the housing, each of the multiple pipes is provided with a water pump, the water pump is fixedly connected to the base, and the top of the pipes located inside the housing is fixedly connected with a spray pipe, the spray pipes are arranged in a crisscross pattern, and the spray pipes are provided with multiple nozzles.

[0013] Preferably, a motor is fixedly connected to the top of the housing, a rotating shaft is provided at the output end of the motor, a demister is fixedly connected to the inner side wall of the housing, and multiple blades are fixedly connected to the bottom of the rotating shaft below the demister. The multiple blades are evenly distributed on the outer side wall of the rotating shaft, and the multiple blades are fixedly connected to the rotating bracket.

[0014] The beneficial effects of this utility model are: by rotating the rotating bracket, the sealing plate opens and closes the bottom of the box multiple times, allowing the quicklime powder inside the box to be added to the limestone and suspension below in small amounts and multiple times. This facilitates faster mixing of the quicklime powder with the limestone suspension, and the newly generated suspension helps to improve desulfurization efficiency and remove sulfur dioxide from gases containing a large amount of sulfur dioxide more quickly. Attached Figure Description

[0015] To more clearly illustrate the technical solutions of the embodiments of this utility model, the drawings used in the embodiments will be briefly introduced below. It should be understood that the following drawings only show some embodiments of this utility model and should not be regarded as a limitation of the scope. For those skilled in the art, other related drawings can be obtained from these drawings without creative effort.

[0016] Figure 1 This is a three-dimensional structural diagram of a boiler gas sulfur dioxide treatment structure provided by an embodiment of the present invention;

[0017] Figure 2This is a schematic diagram of the shell structure of a boiler gas sulfur dioxide treatment structure provided by an embodiment of this utility model;

[0018] Figure 3 This is a schematic diagram of the blade structure of a boiler gas sulfur dioxide treatment structure provided by an embodiment of this utility model;

[0019] Figure 4 yes Figure 3 Enlarged view of point A in the middle;

[0020] Figure 5 This is a schematic diagram of a boiler gas sulfur dioxide treatment structure powder addition component provided by an embodiment of this utility model.

[0021] In the diagram: 1. Base; 2. Shell; 3. Inlet pipe; 4. Outlet pipe; 5. Rotating bracket; 6. Box body; 7. Connecting plate; 8. Fixing frame; 9. Spring; 10. Ball; 11. Lever; 12. Fixing rod; 13. Torsion spring; 14. Sealing plate; 15. Boss; 20. Pipe; 21. Water pump; 22. Nozzle; 23. Motor; 24. Shaft; 25. Demister; 26. Blade. Detailed Implementation

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

[0023] Example, refer to Figures 1-5A structure for treating sulfur dioxide in boiler gas includes a base 1, a shell 2, an inlet pipe 3, and an outlet pipe 4. A rotating bracket 5 is rotatably connected to the inner side wall of the shell 2. A powder-adding assembly is fixedly connected to the shell 2. The powder-adding assembly includes a box 6 fixedly connected to the side wall of the shell 2. A connecting plate 7 is fixedly connected to the bottom of the rotating bracket 5. A fixing frame 8 is fixedly connected to the bottom of the connecting plate 7. A spring 9 is fixedly connected to the side wall of the fixing frame 8. A ball 10 is fixedly connected to the end of the spring 9. A lever is fixedly connected to the bottom of the fixing frame 8. A fixing rod 12 is fixedly connected to the outer wall of the box body 6. A torsion spring 13 is sleeved on the fixing rod 12. A sealing plate 14 is rotatably connected to the bottom end of the fixing rod 12. A boss 15 is fixedly connected to the end of the sealing plate 14. The end of the boss 15 is rounded. The top of the base 1 is fixedly connected to the shell 2. The shell 2 is fixedly connected to the air inlet pipe 3 and the air outlet pipe 4. The air inlet pipe 3 and the air outlet pipe 4 are connected to the shell 2. The position of the lever 11 corresponds to the position of the boss 15. The bottom of the box body 6 is trapezoidal. The bottom of the box 6 has a powder inlet located inside the shell 2. A sealing plate 14 seals the powder inlet. The top of the box 6 has a powder filling port located outside the shell 2. The top of the torsion spring 13 is fixedly connected to the outer wall of the fixing rod 12, and the bottom of the torsion spring 13 is fixedly connected to the sealing plate 14. Multiple pipes 20 are provided on the outer wall of the shell 2, and the bottom of the pipes 20 are connected to the lower outer wall of the shell 2. A water pump 21 is provided on each of the multiple pipes 20, and the water pump 21 is fixed to the base 1. The pipe 20 is fixedly connected to the top of the inner side of the housing 2 with a nozzle 22. The nozzle 22 is arranged in a crisscross pattern and has multiple nozzles. The top of the housing 2 is fixedly connected to a motor 23. The output end of the motor 23 is provided with a rotating shaft 24. The inner side wall of the housing 2 is fixedly connected to a demister 25. The bottom of the rotating shaft 24 below the demister 25 is fixedly connected to multiple blades 26. The multiple blades 26 are evenly distributed on the outer side wall of the rotating shaft 24. The multiple blades 26 are fixedly connected to the rotating bracket 5.

[0024] The working principle of this boiler gas sulfur dioxide treatment structure is as follows: A limestone suspension is placed inside the shell 2. The water pump 21 is started, and the limestone suspension is transported from the bottom of the shell 2 through the pipe 20 to the spray pipe 22. It is sprayed out from multiple nozzles on the spray pipe 22, forming a spray area below the spray pipe 22. Gas containing sulfur dioxide generated by boiler combustion is introduced into the shell 2 through the air inlet pipe 3. The sulfur dioxide gas passes through the spray area formed by the spray pipe 22 and reacts chemically with the limestone suspension to remove the sulfur dioxide gas and prevent sulfur dioxide gas from polluting the air.

[0025] When dealing with boiler gas containing a high amount of sulfur dioxide, first add quicklime powder into the box 6, then start the water pump 21 and motor 23. The motor 23 drives the rotating shaft 24 to rotate, which in turn drives multiple blades 26 to rotate, and drives the rotating bracket 5 to rotate. The rotating bracket 5 drives the lever 11 to make a circular motion through the connecting plate 7 and the fixing frame 8, causing the end of the lever 11 to move the boss 15, which in turn drives the sealing plate 14 to rotate on the fixing rod 12, so that the sealing plate 14 no longer blocks the powder filling port at the bottom of the box 6. At the same time, it stores force for the torsion spring 13. When adding powder... When the opening is fully open, the ball 10, which rotates with the fixed frame 8, strikes the surface of the housing 2, promoting the falling of the quicklime powder. When the lever 11 moves away from the boss 15, the sealing plate 14 seals the powder inlet under the torque of the torsion spring 13. This cycle repeats, adding small amounts of quicklime powder from the box 6 to the limestone and suspension below. This helps the limestone suspension mix the quicklime powder more quickly, and the newly generated suspension helps improve the desulfurization efficiency and remove sulfur dioxide from the gas containing more sulfur dioxide more quickly.

[0026] The rotation of multiple blades 26 also ensures that the boiler gas entering the shell 2 is fully mixed with the suspension in the spray area, preventing the boiler gas from forming a unidirectional airflow in the shell 2, which is beneficial for further desulfurization of the boiler gas.

[0027] It should be noted that the specific model and specifications of the motor need to be selected and determined based on the actual specifications of the device. The specific selection and calculation method adopts the existing technology in this field, so it will not be described in detail here.

[0028] The above description is merely a preferred embodiment of this utility model and is not intended to limit the utility model. Various modifications and variations can be made to this utility model by those skilled in the art. Any modifications, equivalent substitutions, or improvements made within the spirit and principles of this utility model should be included within the protection scope of this utility model.

Claims

1. A structure for treating sulfur dioxide in boiler gas, comprising a base (1), a shell (2), an inlet pipe (3), and an outlet pipe (4), characterized in that, A rotating bracket (5) is rotatably connected to the inner side wall of the housing (2). A powder-adding assembly is fixedly connected to the housing (2). The powder-adding assembly includes a box (6) fixedly connected to the side wall of the housing (2). A connecting plate (7) is fixedly connected to the bottom of the rotating bracket (5). A fixing frame (8) is fixedly connected to the bottom of the connecting plate (7). A spring (9) is fixedly connected to the side wall of the fixing frame (8). A ball (10) is fixedly connected to the end of the spring (9). A lever (11) is fixedly connected to the bottom of the fixing frame (8). A fixing rod (12) is fixedly connected to the outer side wall of the box (6). A torsion spring (13) is sleeved on the fixing rod (12). A sealing plate (14) is rotatably connected to the bottom end of the fixing rod (12). A boss (15) is fixedly connected to the end of the sealing plate (14). The end of the boss (15) is arc-shaped.

2. The boiler gas sulfur dioxide treatment structure according to claim 1, characterized in that, The top of the base (1) is fixedly connected to the housing (2), the housing (2) is fixedly connected to the air inlet pipe (3) and the air outlet pipe (4), and the air inlet pipe (3) and the air outlet pipe (4) are connected to the housing (2).

3. The boiler gas sulfur dioxide treatment structure according to claim 1, characterized in that, The position of the lever (11) corresponds to the position of the boss (15). The bottom of the box (6) is trapezoidal. The bottom of the box (6) has a powder outlet. The powder outlet is located inside the shell (2). The sealing plate (14) seals the powder outlet.

4. The boiler gas sulfur dioxide treatment structure according to claim 1, characterized in that, The top of the box (6) is provided with a powder filling port, which is located on the outside of the shell (2).

5. The boiler gas sulfur dioxide treatment structure according to claim 1, characterized in that, The top end of the torsion spring (13) is fixedly connected to the outer wall of the fixing rod (12), and the bottom end of the torsion spring (13) is fixedly connected to the sealing plate (14).

6. The boiler gas sulfur dioxide treatment structure according to claim 1, characterized in that, The outer wall of the housing (2) is provided with multiple pipes (20), the bottom end of the pipes (20) is connected to the lower outer wall of the housing (2), and each of the multiple pipes (20) is provided with a water pump (21). The water pump (21) is fixedly connected to the base (1). The top of the pipe (20) located inside the housing (2) is fixedly connected with a nozzle (22). The nozzles (22) are arranged in a crisscross pattern and are provided with multiple nozzles.

7. The boiler gas sulfur dioxide treatment structure according to claim 1, characterized in that, A motor (23) is fixedly connected to the top of the housing (2). A rotating shaft (24) is provided at the output end of the motor (23). A demister (25) is fixedly connected to the inner side wall of the housing (2). Multiple blades (26) are fixedly connected to the bottom of the rotating shaft (24) below the demister (25). The multiple blades (26) are evenly distributed on the outer side wall of the rotating shaft (24). The multiple blades (26) are fixedly connected to the rotating bracket (5).

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