A flue gas desulfurization apparatus for exhaust gas

Abstract

The utility model relates to flue gas treatment technical field especially, and more particularly to a kind of flue gas desulfurization equipment for waste gas.The utility model provides such a kind of flue gas desulfurization equipment for waste gas, including desulfurizer, inlet flue, exhaust pipe, shunt pipe, storage tank, water pump and spray pipe, desulfurizer right side lower part is connected and is communicated with inlet flue, desulfurizer top is connected and is communicated with exhaust pipe, desulfurizer left side is provided with storage tank, exhaust pipe is connected and is communicated with shunt pipe in the position close to storage tank, water pump is installed in storage tank top, water pump top is connected and is communicated with spray pipe.Active carbon carries out preliminary adsorption to part harmful substance (such as dust, part organic matter and part sulfide) in flue gas, plays the role of pre-purification, prevents these substances from entering the spray system in desulfurizer upper portion, avoids nozzle blockage, gypsum slurry pollution or reaction efficiency drop, to protect core desulfurization system, improve the stability and reliability of overall operation.

Description

Technical Field

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

[0002] Flue gas desulfurization (FGD) is a technology used to reduce the sulfur dioxide (SO2) content in exhaust gases (flue gas) produced during combustion. When fossil fuels such as coal and oil are burned, SO2 is generated if the fuel contains sulfur. This gas is not only harmful to the environment and is one of the main causes of acid rain, but it can also have adverse effects on human health.

[0003] Patent CN218924274U discloses a high-efficiency flue gas desulfurization device, including a liquid storage tank, a primary treatment pipe, a secondary treatment pipe, and a tertiary treatment pipe. The primary treatment pipe, the secondary treatment pipe, and the tertiary treatment pipe are sequentially fixed through the upper part of the periphery of the liquid storage tank from left to right. A primary spray pipe is fixed through the primary treatment pipe, the secondary treatment pipe, and the tertiary treatment pipe. A secondary spray pipe is fixed through the secondary treatment pipe and the tertiary treatment pipe above the primary spray pipe. A tertiary spray pipe is fixed through the tertiary treatment pipe above the secondary spray pipe. Although the aforementioned patent addresses the issues of limited spray desulfurization area, low efficiency, inability to perform multiple desulfurization processes within the same equipment, and the inability of flue gas to remain in the reaction zone for an extended period without increasing concentration during desulfurization by setting up primary, secondary, and tertiary spray pipes, paddles, baffle plate one, baffle plate two, and diverter plates, in practical applications, the lack of pre-purification treatment of the flue gas entering the system leads to the direct entry of dust, some organic matter, and some sulfides into the spray system. This can not only clog the nozzles but also cause slurry contamination or reduce reaction efficiency, ultimately affecting the overall stability and reliability of the equipment.

[0004] Therefore, there is a need for a flue gas desulfurization device with pre-purification function for waste gas. Utility Model Content

[0005] In order to overcome the shortcomings of existing patents in practical applications, which lack pre-purification treatment of flue gas entering the system, resulting in dust, some organic matter and some sulfides directly entering the spray system, which may not only clog the nozzles, but also cause slurry pollution or reduce reaction efficiency, ultimately affecting the overall stability and reliability of the equipment, this utility model provides a flue gas desulfurization device with pre-purification function for waste gas.

[0006] The technical solution of this utility model is as follows: a flue gas desulfurization device for waste gas, including a desulfurization tower, a flue gas inlet pipe, a flue gas outlet pipe, a diversion pipe, a storage tank, a water pump, a cover plate, and a spray pipe. The flue gas inlet pipe is connected to and communicates with the lower right side of the desulfurization tower, and the flue gas outlet pipe is connected to and communicates with the top of the desulfurization tower. A storage tank is provided on the left side of the desulfurization tower for storing limestone slurry. The other end of the flue gas outlet pipe is connected to the top of the storage tank. A diversion pipe is connected to and communicates with the flue gas outlet pipe near the storage tank. A water pump is installed on the top of the storage tank. The top of the storage tank is covered with a cover plate. A spray pipe is connected to and communicates with the top of the water pump. The spray pipe is connected to the flue gas outlet pipe. The device also includes a placement frame, activated carbon, and handles. A placement frame is slidably provided at the bottom of the desulfurization tower. Activated carbon is placed inside the placement frame. Two handles are fixedly connected to the front side of the placement frame.

[0007] As a preferred technical solution of this utility model, it also includes a rotating rod, a limiting plate and a limiting rod. A rotating rod is rotatably provided on the front side of the desulfurization tower. A limiting plate is fixedly connected to the middle of the rotating rod, and limiting rods are inserted into both ends of the rotating rod.

[0008] As a preferred technical solution of this utility model, it also includes a fixing frame, a fan, a connecting pipe and screws. The fixing frame is installed on the smoke inlet pipe by multiple screws. The fan is installed inside the fixing frame. The connecting pipe is fixedly connected to the right side of the fixing frame.

[0009] As a preferred technical solution of this utility model, it also includes an observation window, which is embedded in the front side of the storage tank.

[0010] As a preferred technical solution of this utility model, it also includes an anti-loss rope, with two anti-loss ropes connected to the front side of the desulfurization tower, and one end of the anti-loss rope connected to the limiting rod.

[0011] As a preferred technical solution of this utility model, it also includes an anti-slip sleeve, and the handle is covered with an anti-slip sleeve.

[0012] Compared with the prior art, this utility model provides a flue gas desulfurization device for waste gas, which has the following beneficial effects: 1. Activated carbon pre-adsorbs some harmful substances (such as dust, some organic matter and some sulfides) in the flue gas, plays a pre-purification role, prevents these substances from entering the spray system at the top of the desulfurization tower, avoids nozzle blockage, gypsum slurry pollution or reaction efficiency reduction, thereby protecting the core desulfurization system and improving the overall stability and reliability of operation.

[0013] 2. By rotating the limiting plate upwards, it presses against the front end of the placement frame, thus achieving positioning and sealing to prevent exhaust gas leakage during operation.

[0014] 3. By activating the fan at the flue gas inlet pipe, the flue gas can be actively guided into the desulfurization tower, accelerating the gas flow rate and thus improving the processing efficiency of the desulfurization system. Attached Figure Description

[0015] Figure 1 This is a three-dimensional structural diagram of the present invention.

[0016] Figure 2 This is a partial sectional view of the desulfurization tower, flue gas inlet pipe, and placement frame of this utility model.

[0017] Figure 3 This is a partial sectional view of the diversion pipe, storage tank, and cover plate components of this utility model.

[0018] Figure 4 This is a partial sectional view of the rotating rod, limiting plate, and limiting rod components of this utility model.

[0019] Figure 5 This is a partial sectional view of the components of this utility model, including the fixing frame, fan, and connecting pipe.

[0020] The markings in the diagram are as follows: 1-Desulfurization tower, 2-Inlet pipe, 3-Placement frame, 4-Activated carbon, 5-Handle, 6-Exhaust pipe, 7-Diverter pipe, 8-Storage tank, 9-Water pump, 10-Cover plate, 11-Spray pipe, 12-Observation window, 13-Rotating rod, 14-Limiting plate, 15-Limiting rod, 16-Anti-loss rope, 17-Fixing frame, 18-Fan, 19-Connecting pipe, 20-Screw, 21-Anti-slip sleeve. Detailed Implementation

[0021] The present invention will be further described in detail below with reference to the accompanying drawings and specific embodiments, but this does not limit the scope of protection and application of the present invention.

[0022] Example 1: A flue gas desulfurization device for waste gas, please refer to... Figures 1-5The system includes a desulfurization tower 1, an inlet pipe 2, an outlet pipe 6, a diversion pipe 7, a storage tank 8, a water pump 9, a cover plate 10, and a spray pipe 11. The inlet pipe 2 is connected to the lower right side of the desulfurization tower 1, and the outlet pipe 6 is connected to the top of the desulfurization tower 1. The storage tank 8 is located on the left side of the desulfurization tower 1 and is used to store limestone slurry. The other end of the outlet pipe 6 is connected to the top of the storage tank 8. The diversion pipe 7 is connected to the outlet pipe 6 near the storage tank 8. The water pump 9 is installed on the top of the storage tank 8, and the top of the storage tank 8 is covered with a cover plate 10. The top of the water pump 9 is connected to and connected to... The system includes a spray pipe 11 connected to the flue pipe 6, a placement frame 3, activated carbon 4, and a handle 5. The placement frame 3 is slidably installed at the bottom of the desulfurization tower 1, and activated carbon 4 is placed inside the placement frame 3. Two handles 5 are fixedly connected to the front of the placement frame 3. An observation window 12 is embedded in the front of the storage tank 8. The observation window 12 is used to monitor the liquid level and status of the slurry inside the storage tank 8, so as to facilitate timely replenishment or replacement. The handle 5 is covered with an anti-slip sleeve 21, which increases the friction between the hand and the handle 5, prevents the hand from slipping, and improves the safety of operation.

[0023] When this equipment is needed, sulfur-containing flue gas enters the desulfurization tower 1 through the inlet pipe 2. After entering the desulfurization tower 1, the flue gas first passes through the placement frame 3, where activated carbon 4 performs preliminary adsorption on some harmful substances (such as dust, some organic matter, and some sulfides) in the flue gas, playing a pre-purification role. This prevents these substances from entering the spray system at the top of the desulfurization tower 1, avoiding nozzle clogging, gypsum slurry contamination, or a decrease in reaction efficiency, thereby protecting the core desulfurization system and improving the overall stability and reliability of operation. The flue gas then flows upward to the upper part of the desulfurization tower 1, where it enters the subsequent... The gas flows upward into the flue gas pipe 6. At this time, the water pump 9 draws limestone slurry from the storage tank 8 and sprays it into the flue gas pipe 6 through the spray pipe 11 after atomization. The atomized limestone slurry comes into full contact with the flue gas. In the flue gas pipe 6, the sulfur dioxide in the flue gas reacts chemically with the limestone slurry to produce gypsum, thus achieving desulfurization. The purified flue gas after the reaction is discharged through the diversion pipe 7. Some of the high-temperature waste gas flows back to the top of the storage tank 8 through the flue gas pipe 6 to preheat the limestone slurry using the residual heat, reducing subsequent heating energy consumption and promoting slurry circulation to prevent sedimentation.

[0024] Example 2: Based on Example 1, please refer to... Figure 1 and Figure 4 It also includes a rotating rod 13, a limiting plate 14, and a limiting rod 15. A rotating rod 13 is rotatably installed on the front side of the desulfurization tower 1. The limiting plate 14 is fixedly connected to the middle of the rotating rod 13. The limiting rods 15 are inserted into both ends of the rotating rod 13. Two anti-loss ropes 16 are connected to the front side of the desulfurization tower 1. One end of the anti-loss rope 16 is connected to the limiting rod 15 to prevent the limiting rod 15 from being lost.

[0025] When it is necessary to replace or clean the activated carbon 4, pull the limiting rod 15 outward to release the lock on the rotating rod 13, and then rotate the limiting plate 14 downward to completely disengage it from the placement frame 3, releasing the limit on the placement frame 3. Next, grip the handle 5 and pull the placement frame 3 out of the desulfurization tower 1 to perform the replacement or cleaning of the activated carbon 4. After maintenance, align the placement frame 3 with the slide rail and push it backward into the desulfurization tower 1 until it is in place. Then, rotate the limiting plate 14 upward to press it against the front end of the placement frame 3, which serves to position and seal it, preventing exhaust gas leakage during operation. Finally, push the limiting rod 15 inward to insert it into the insertion holes at both ends of the rotating rod 13, locking the position of the rotating rod 13 to prevent it from rotating accidentally during equipment operation and ensuring that the placement frame 3 is stable and reliable.

[0026] Please see Figure 1 and Figure 5 It also includes a fixing frame 17, a fan 18, a connecting pipe 19 and screws 20. The fixing frame 17 is installed on the smoke inlet pipe 2 by four screws 20. The fan 18 is installed inside the fixing frame 17. The connecting pipe 19 is fixedly connected to the right side of the fixing frame 17.

[0027] When using the equipment, by activating the fan 18 at the flue gas inlet pipe 2, the flue gas can be actively guided into the desulfurization tower 1, accelerating the gas flow rate and thus improving the processing efficiency of the desulfurization system.

[0028] The above description is only a preferred embodiment of the present utility model. It should be noted that for those skilled in the art, several improvements and modifications can be made without departing from the principle of the present utility model, and these improvements and modifications should also be considered within the protection scope of the present utility model.

Claims

1. A flue gas desulfurization device for waste gas, comprising a desulfurization tower (1), an inlet pipe (2), an outlet pipe (6), a diversion pipe (7), a storage tank (8), a water pump (9), a cover plate (10), and a spray pipe (11), wherein the inlet pipe (2) is connected to and communicates with the lower right side of the desulfurization tower (1), the outlet pipe (6) is connected to and communicates with the top of the desulfurization tower (1), the storage tank (8) is provided on the left side of the desulfurization tower (1), the storage tank (8) is used to store limestone slurry, the other end of the outlet pipe (6) is connected to the top of the storage tank (8), the outlet pipe (6) is connected to and communicates with the diversion pipe (7) near the storage tank (8), the water pump (9) is installed on the top of the storage tank (8), the top of the storage tank (8) is covered with a cover plate (10), the top of the water pump (9) is connected to and communicates with the spray pipe (11), and the spray pipe (11) is connected to the outlet pipe (6), characterized in that: It also includes a placement frame (3), activated carbon (4) and handles (5). The lower part of the desulfurization tower (1) is provided with a sliding placement frame (3), and activated carbon (4) is placed inside the placement frame (3). Two handles (5) are fixedly connected to the front side of the placement frame (3).

2. The flue gas desulfurization equipment for waste gas as described in claim 1, characterized in that: It also includes a rotating rod (13), a limiting plate (14) and a limiting rod (15). The front side of the desulfurization tower (1) is provided with a rotating rod (13), the middle of the rotating rod (13) is fixedly connected to the limiting plate (14), and the two ends of the rotating rod (13) are inserted with limiting rods (15).

3. The flue gas desulfurization equipment for waste gas as described in claim 2, characterized in that: It also includes a fixed frame (17), a fan (18), a connecting pipe (19) and screws (20). The fixed frame (17) is installed on the smoke inlet pipe (2) by multiple screws (20). The fan (18) is installed inside the fixed frame (17). The connecting pipe (19) is fixedly connected to the right side of the fixed frame (17).

4. The flue gas desulfurization equipment for waste gas as described in claim 3, characterized in that: It also includes an observation window (12), which is embedded in the front of the storage tank (8).

5. The flue gas desulfurization equipment for waste gas as described in claim 4, characterized in that: It also includes anti-loss ropes (16), and two anti-loss ropes (16) are connected to the front side of the desulfurization tower (1). One end of the anti-loss rope (16) is connected to the limit rod (15).

6. The flue gas desulfurization equipment for waste gas as described in claim 5, characterized in that: It also includes an anti-slip sleeve (21), and the handle (5) is fitted with an anti-slip sleeve (21).

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