Flue gas desulfurization device

Abstract

The utility model provides a flue gas desulfurization device, and relates to the technical field of flue gas treatment.The flue gas desulfurization device comprises a shell, a partition plate is fixedly arranged in the shell and divides the interior of the shell into an activated carbon adsorption chamber and a flue gas chamber from top to bottom, a plurality of through holes are evenly formed in the partition plate, and a first filter screen is arranged at the top of the partition plate; a smoke inlet pipe communicated with the smoke chamber is arranged on one side of the shell, a stirring assembly is arranged in the activated carbon adsorption chamber, a driving motor used for driving the stirring assembly to rotate is fixedly arranged at the top of the shell, and a filtering assembly is arranged in the smoke chamber. After being filtered by the assembly, the activated carbon particles sequentially upwards penetrate through the through holes of the partition plate and the first filter screen and uniformly enter the activated carbon adsorption chamber, the driving motor drives the stirring assembly to stir the activated carbon particles in the activated carbon adsorption chamber, the contact area of the activated carbon particles and the flue gas is increased, and the activated carbon particles and the boiler flue gas are fully mixed; the activated carbon particle adsorption efficiency is effectively improved, and the flue gas treatment time is shortened.

Description

Technical Field

[0001] The present application relates to the technical field of flue gas treatment, and in particular to a flue gas desulfurization device. Background Art

[0002] In the process of coal-fired power generation, boilers are often used to burn coal. Coal itself contains sulfur. When coal burns in the boiler, the sulfur in it reacts with oxygen to produce sulfur dioxide, resulting in sulfur-containing flue gas. If these sulfur-containing flue gases are directly discharged into the atmosphere, they will cause serious pollution to the environment, such as the formation of acid rain, which does not meet environmental protection requirements.

[0003] In the existing technology, activated carbon adsorption treatment is commonly used to remove sulfur dioxide from boiler flue gas. The by-products produced during the activated carbon adsorption process are relatively small and are relatively easy to treat, without causing new environmental pollution problems. Compared with some chemical desulfurization methods that produce a large amount of waste residue and wastewater, activated carbon treatment is more environmentally friendly.

[0004] However, in the prior art, static activated carbon particles are often used to absorb sulfur dioxide in boiler flue gas. The contact area between the activated carbon particles and the flue gas is small, resulting in low adsorption efficiency of the activated carbon particles and time-consuming flue gas treatment. Summary of the Invention

[0005] The purpose of the embodiments of the present application is to provide a flue gas desulfurization device, which can solve the technical problems in the prior art that the contact area between activated carbon particles and flue gas is small, resulting in low adsorption efficiency of activated carbon particles and time-consuming treatment of flue gas.

[0006] An embodiment of the present application provides a flue gas desulfurization device, including a shell, a partition plate fixedly provided in the shell, the partition plate dividing the interior of the shell from top to bottom into an activated carbon adsorption chamber and a flue gas chamber, a plurality of through holes evenly provided on the partition plate, a first filter screen provided on the top of the partition plate, a smoke exhaust pipe and a feed port connected to the activated carbon adsorption chamber provided on the top of the shell, a sealing cover provided at the feed port, a smoke inlet pipe connected to the flue gas chamber provided on one side of the shell, a stirring assembly provided in the activated carbon adsorption chamber, a driving motor for driving the stirring assembly to rotate fixedly provided on the top of the shell, and a filter assembly provided in the flue gas chamber.

[0007] Furthermore, the stirring assembly includes a support frame, a rotating shaft and multiple stirring rods. The rotating shaft is arranged in the activated carbon adsorption chamber and rotates through the support frame. The upper end of the rotating shaft extends outside the shell and is connected to the output shaft of the drive motor. The multiple stirring rods are evenly fixed on the rotating shaft.

[0008] Furthermore, the filter assembly includes a filter frame and a second filter screen, the second filter screen is fixed on the filter frame, the filter frame is inserted and disposed in the smoke chamber, the second filter screen is located above the smoke inlet of the smoke inlet pipe, and a handle is fixed on the filter frame, and the handle is located outside the shell.

[0009] Furthermore, a first sealing ring is provided between the filter frame and the housing, the first sealing ring is fixed on the filter frame, and a second sealing ring is provided at the connection between the rotating shaft and the housing.

[0010] Furthermore, the smoke exhaust pipe is provided with an exhaust fan and a smoke exhaust valve, and the smoke exhaust valve is located below the smoke exhaust pipe.

[0011] Furthermore, a dust exhaust pipe communicating with the smoke chamber is provided at the bottom of the shell, and a dust exhaust valve is provided on the dust exhaust pipe.

[0012] Furthermore, a discharge port is provided on one side of the shell, and a discharge valve is provided at the discharge port.

[0013] Furthermore, a cooling cavity is provided on the peripheral side of the shell, and a water inlet pipe and a water outlet pipe communicating with the cooling cavity are provided on the shell.

[0014] Beneficial effects of the utility model:

[0015] The utility model has a partition plate fixedly provided in the shell, which divides the interior of the shell into an activated carbon adsorption chamber and a flue gas chamber from top to bottom. A plurality of through holes are evenly provided on the partition plate, a first filter screen is provided on the top of the partition plate, a stirring assembly is provided in the activated carbon adsorption chamber, a driving motor for driving the stirring assembly to rotate is fixedly provided on the top of the shell, a filtering assembly is provided in the flue gas chamber, boiler flue gas enters the flue gas chamber from the smoke inlet pipe, passes through the through holes of the partition plate and the first filter screen in turn after being filtered by the assembly, and evenly enters the activated carbon adsorption chamber, the driving motor drives the stirring assembly to stir the activated carbon particles in the activated carbon adsorption chamber, increases the contact area between the activated carbon particles and the flue gas, and fully mixes the activated carbon particles with the boiler flue gas, effectively improves the adsorption efficiency of the activated carbon particles, and shortens the flue gas treatment time. BRIEF DESCRIPTION OF THE DRAWINGS

[0016] In order to more clearly illustrate the technical solutions of the embodiments of the present application, the following is a brief introduction to the drawings required for use in the embodiments. It should be understood that the following drawings only show certain embodiments of the present application and therefore should not be regarded as limiting the scope. For ordinary technicians in this field, other relevant drawings can be obtained based on these drawings without creative work.

[0017] Figure 1 This is a schematic diagram of the structure of some embodiments of the present application;

[0018] Figure 2 are cross-sectional views of some embodiments of the present application;

[0019] The reference numerals are:

[0020] 1. Shell; 2. Partition plate; 3. Activated carbon adsorption chamber; 4. Smoke chamber; 5. First filter; 6. Smoke exhaust pipe; 7. Feed port; 8. Sealing cover; 9. Smoke inlet pipe; 10. Stirring assembly; 101. Support frame; 102. Rotating shaft; 103. Stirring rod; 11. Driving motor; 12. Filter assembly; 121. Filter frame; 122. Second filter; 13. Handle; 14. Exhaust fan; 15. Smoke exhaust valve; 16. Dust exhaust pipe; 17. Dust exhaust valve; 18. Discharge port; 19. Discharge valve; 20. Cooling chamber; 21. Water inlet pipe; 22. Water outlet pipe. DETAILED DESCRIPTION

[0021] To make the objectives, technical solutions, and advantages of the embodiments of the present application more clear, the technical solutions in the embodiments of the present application will be clearly and completely described below in conjunction with the accompanying drawings of the embodiments of the present application. Obviously, the described embodiments are only part of the embodiments of the present application, not all of the embodiments. Generally, the components of the embodiments of the present application described and shown in the drawings herein can be arranged and designed in various different configurations.

[0022] Therefore, the following detailed description of the embodiments of the present application provided in the accompanying drawings is not intended to limit the scope of the present application for protection, but merely represents selected embodiments of the present application. All other embodiments obtained by persons of ordinary skill in the art based on the embodiments in the present application without creative work are within the scope of protection of the present application.

[0023] It should be noted that similar reference numerals and letters denote similar items in the following drawings, and therefore, once an item is defined in one drawing, it does not require further definition or explanation in subsequent drawings.

[0024] In the description of this application, it should be noted that the terms "center," "upper," "lower," "left," "right," "vertical," "horizontal," "inner," "outer," etc., indicating orientations or positional relationships, are based on the orientations or positional relationships shown in the accompanying drawings, or are the orientations or positional relationships in which the product of this application is typically placed when in use. These terms are intended only to facilitate the description of this application and simplify the description, and are not intended to indicate or imply that the device or element referred to must have a specific orientation, be constructed, or operate in a specific orientation. Therefore, they should not be construed as limitations on this application. Furthermore, the terms "first," "second," "third," etc., are used only to distinguish descriptions and should not be construed as indicating or implying relative importance.

[0025] Furthermore, terms such as "horizontal," "vertical," and "overhanging" do not necessarily imply that a component must be absolutely horizontal or overhanging, but rather that it can be slightly tilted. For example, "horizontal" simply means that its direction is more horizontal than "vertical," and does not mean that the structure must be completely horizontal, but rather that it can be slightly tilted.

[0026] It should also be noted that, in the description of this application, unless otherwise expressly specified or limited, the terms "disposed," "installed," "connected," and "connected" should be understood in a broad sense. For example, they can refer to fixed connections, detachable connections, or integral connections; they can refer to mechanical connections or electrical connections; they can refer to direct connections or indirect connections through an intermediate medium; and they can refer to internal connections between two components. Those skilled in the art will understand the specific meanings of the above terms in this application based on the specific circumstances. Specific embodiments

[0028] like Figure 1 and Figure 2 As shown, the present application provides a flue gas desulfurization device, including a shell 1, a partition plate 2 is fixedly provided in the shell 1, and the partition plate 2 divides the interior of the shell 1 from top to bottom into an activated carbon adsorption chamber 3 and a flue gas chamber 4, and a plurality of through holes are evenly provided on the partition plate 2, and a first filter screen 5 is provided on the top of the partition plate 2. The setting of the first filter screen 5 can prevent the activated carbon particles placed in the activated carbon adsorption chamber 3 from falling into the flue gas chamber 4 through the through holes on the partition plate 2, and at the same time, make the boiler flue gas passing through the through holes on the partition plate 2 enter the activated carbon adsorption chamber 3 more evenly, and avoid the local boiler flue gas airflow being too large and affecting the flue gas treatment effect. The top of the shell 1 is provided with an exhaust pipe 6 and a feed port 7 connected to the activated carbon adsorption chamber 3, and a sealing cover 8 is provided at the feed port 7. By opening the sealing cover 8, the activated carbon particles can be placed into the activated carbon adsorption chamber 3 through the feed port 7. When the boiler flue gas is treated, the sealing cover 8 is closed, and the exhaust pipe 6 is used to discharge the treated boiler flue gas in the activated carbon adsorption chamber 3 The activated carbon adsorption chamber 3 is provided with a stirring assembly 10 on one side of the shell 1, and a driving motor 11 for driving the stirring assembly 10 to rotate is fixedly provided on the top of the shell 1. A filter assembly 12 is provided in the smoke chamber 4. The setting of the filter assembly 12 can filter the dust particles in the boiler smoke, so as to prevent the dust particles in the boiler smoke from occupying the pores of the activated carbon particles, causing pore blockage, hindering the diffusion and adsorption of gas molecules, and reducing the adsorption efficiency. Specifically, the boiler smoke enters the smoke chamber 4 from the smoke inlet pipe 9, and after being filtered by the assembly, it passes through the through holes of the partition plate 2 and the first filter screen 5 in turn, and evenly enters the activated carbon adsorption chamber 3. The driving motor 11 drives the stirring assembly 10 to stir the activated carbon particles in the activated carbon adsorption chamber 3, thereby increasing the contact area between the activated carbon particles and the smoke, and fully mixing the activated carbon particles with the boiler smoke, effectively improving the adsorption efficiency of the activated carbon particles, and shortening the smoke treatment time.

[0029] like Figure 2 As shown, the stirring assembly 10 includes a support frame 101, a rotating shaft 102 and a plurality of stirring rods 103. The rotating shaft 102 is arranged in the activated carbon adsorption chamber 3 through the rotation of the support frame 101. The upper end of the rotating shaft 102 extends to the outside of the shell 1 and is connected to the output shaft of the driving motor 11. The plurality of stirring rods 103 are evenly fixed on the rotating shaft 102. Specifically, the rotating shaft 102 is rotatably arranged on the support frame 101, and the support frame 101 is fixedly connected to the inner top wall of the activated carbon adsorption chamber 3. The driving motor 11 drives the rotating shaft 102 to rotate, and the rotating shaft 102 drives the stirring rods 103 to rotate, thereby stirring the activated carbon particles placed in the activated carbon adsorption chamber 3, thereby increasing the contact area between the activated carbon particles and the flue gas.

[0030] like Figure 1 and Figure 2 As shown, the filter assembly 12 includes a filter frame 121 and a second filter screen 122. The second filter screen 122 is fixed on the filter frame 121. The filter frame 121 is inserted and removed in the smoke chamber 4. The second filter screen 122 is located above the smoke inlet of the smoke inlet pipe 9. A handle 13 is fixed on the filter frame 121. The handle 13 is located outside the shell 1. After the filter assembly 12 is used for a long time, dust particles in the boiler flue gas are easily accumulated on the second filter screen 122. The filter frame 121 can be pulled out of the smoke chamber 4 through the handle 13, and the second filter screen 122 can be cleaned.

[0031] like Figure 2 As shown, a first sealing ring (not shown in the figure) is provided between the filter frame 121 and the shell 1, and the first sealing ring is fixed on the filter frame 121. A second sealing ring (not shown in the figure) is provided at the connection between the rotating shaft 102 and the shell 1. The first sealing ring is used to seal the gap between the filter frame 121 and the shell 1, and the second sealing ring is used to seal the gap between the rotating shaft 102 and the shell 1 to prevent the boiler flue gas in the shell 1 from leaking and polluting the environment.

[0032] like Figure 1 and Figure 2 As shown, the smoke exhaust pipe 6 is provided with an exhaust fan 14 and a smoke exhaust valve 15, and the smoke exhaust valve 15 is located below the smoke exhaust pipe 6. When the boiler flue gas first enters the activated carbon adsorption chamber 3, the smoke exhaust valve 15 and the exhaust fan 14 are in a closed state, which can make the boiler flue gas stay in the adsorption chamber for a period of time, so that the boiler flue gas and the activated carbon particles are fully in contact. Then the smoke exhaust valve 15 is opened and the exhaust fan 14 is started to pump the boiler flue gas treated by the activated carbon particles into the smoke exhaust pipe 6, and then discharged into the next process for treatment through the smoke exhaust pipe 6. The setting of the exhaust fan 14 can increase the discharge speed of the boiler flue gas in the activated carbon adsorption chamber 3. With the cooperation of the smoke exhaust valve 15 and the exhaust fan 14, the treatment effect of the boiler flue gas can be effectively improved.

[0033] like Figure 1 and Figure 2 As shown, a dust exhaust pipe 16 connected to the smoke chamber 4 is provided at the bottom of the shell 1, and a dust exhaust valve 17 is provided on the dust exhaust pipe 16. The boiler flue gas enters the smoke chamber 4 through the smoke inlet pipe 9. Some dust particles in the boiler flue gas gather at the bottom of the smoke chamber 4 under the action of gravity. By regularly opening the dust exhaust valve 17, the dust particles in the smoke chamber 4 can be discharged.

[0034] like Figure 1 and Figure 2 As shown, a discharge port 18 is provided on one side of the shell 1, and a discharge valve 19 is provided at the discharge port 18. The activated carbon particles saturated with adsorption can be regenerated to recover the sulfur resources therein, which has certain economic value. By opening the discharge valve 19, the activated carbon particles in the activated carbon adsorption chamber 3 can be discharged and then regenerated.

[0035] like Figure 1 and Figure 2 As shown, a cooling chamber 20 is provided on the peripheral side of the shell 1, and a water inlet pipe 21 and a water outlet pipe 22 connected to the cooling chamber 20 are provided on the shell 1. Cooling water is input into the cooling chamber 20 through the water inlet pipe 21, and can exchange heat with the boiler flue gas in the shell 1. After the heat exchange, the cooling water is discharged from the water outlet pipe 22, thereby realizing the recovery and utilization of waste heat in the boiler flue gas and saving energy.

[0036] The above are merely preferred embodiments of the present application and are not intended to limit the present application. Those skilled in the art will readily appreciate that various modifications and variations are possible. Any modifications, equivalent substitutions, or improvements made within the spirit and principles of the present application shall be included within the scope of protection of the present application.

Claims

1. A flue gas desulfurization device, characterized in that: It includes a shell, a partition plate is fixedly provided in the shell, the partition plate divides the interior of the shell from top to bottom into an activated carbon adsorption chamber and a smoke chamber, a plurality of through holes are evenly provided on the partition plate, a first filter is provided on the top of the partition plate, a smoke exhaust pipe and a feed port connected to the activated carbon adsorption chamber are provided on the top of the shell, a sealing cover is provided at the feed port, a smoke inlet pipe connected to the smoke chamber is provided on one side of the shell, a stirring assembly is provided in the activated carbon adsorption chamber, a driving motor for driving the stirring assembly to rotate is fixedly provided on the top of the shell, and a filter assembly is provided in the smoke chamber.

2. A flue gas desulfurization device according to claim 1, characterized in that: The stirring assembly includes a support frame, a rotating shaft and multiple stirring rods. The rotating shaft is arranged in the activated carbon adsorption chamber and rotates through the support frame. The upper end of the rotating shaft extends outside the shell and is connected to the output shaft of the drive motor. The multiple stirring rods are evenly fixed on the rotating shaft.

3. A flue gas desulfurization device according to claim 2, characterized in that: The filter assembly includes a filter frame and a second filter screen, the second filter screen is fixed on the filter frame, the filter frame is inserted and removed from the smoke chamber, the second filter screen is located above the smoke inlet of the smoke inlet pipe, and a handle is fixed on the filter frame, and the handle is located outside the shell.

4. A flue gas desulfurization device according to claim 3, characterized in that: A first sealing ring is provided between the filter frame and the housing, the first sealing ring being fixed on the filter frame, and a second sealing ring is provided at the connection between the rotating shaft and the housing.

5. The flue gas desulfurization device according to claim 1, characterized in that: The smoke exhaust pipe is provided with an exhaust fan and a smoke exhaust valve, and the smoke exhaust valve is located below the smoke exhaust pipe.

6. A flue gas desulfurization device according to claim 5, characterized in that: A dust exhaust pipe communicating with the smoke chamber is provided at the bottom of the shell, and a dust exhaust valve is provided on the dust exhaust pipe.

7. The flue gas desulfurization device according to claim 1, characterized in that: A discharge port is provided on one side of the shell, and a discharge valve is provided at the discharge port.

8. The flue gas desulfurization device according to claim 1, characterized in that: A cooling cavity is provided on the peripheral side of the shell, and a water inlet pipe and a water outlet pipe communicating with the cooling cavity are provided on the shell.

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