Semi-dry desulfurization device for industrial boiler

Abstract

The utility model discloses a semi-dry desulfurization device for an industrial boiler, which belongs to the field of industrial boilers and comprises a desulfurization tank body with an opening in the upper surface and a cover plate arranged on the upper surface of the desulfurization tank body, a water pump is mounted on the rear side surface of the desulfurization tank body, a mounting component is arranged on the cover plate, and a fixing rod is mounted on the lower surface of the cover plate; according to the semi-dry desulfurization device for the industrial boiler, by arranging the water pump, the annular pipe and the water sprinkling frame, flue gas is conveyed into the desulfurization tank body under the action of the flue gas guide pipe, then liquid at the bottom of the desulfurization tank body is pumped through the water pump, enters the connecting pipe under the action of the output pipe and the annular pipe, and finally is sprayed through the circular holes in the water sprinkling frame. The water spraying frame is used for spraying and desulfurizing the entering flue gas, the entering flue gas can be uniformly desulfurized due to the action of the water spraying frame similar to a shower head, and the desulfurized gas is discharged in cooperation with the action of the flue gas leading-out pipe, so that the desulfurization effect and stability are improved.

Description

Technical Field

[0001] This utility model belongs to the field of industrial boiler technology, specifically relating to a semi-dry desulfurization device for industrial boilers. Background Technology

[0002] Boiler desulfurization refers to the use of certain technical means to reduce the emission of sulfur dioxide (SO2) generated during boiler combustion, thereby reducing air pollution. Boiler desulfurization is one of the important technical measures for preventing and controlling air pollution. Boiler desulfurization refers to reducing the sulfur content in fuel through specific technical means during the combustion process, thereby reducing the emission of sulfur dioxide produced by combustion. Sulfur dioxide is a major air pollutant that causes serious harm to the environment and health. As a widely used thermal energy equipment in industrial production and daily life, the impact of sulfur dioxide emitted by boilers on the atmospheric environment cannot be ignored.

[0003] The flue gas generated during the operation of industrial boilers needs to be desulfurized. Existing desulfurization and purification equipment is available for sulfur dioxide pollution, but the existing desulfurization structure has problems such as simple structure, poor desulfurization stability, and low desulfurization efficiency, and further improvements are needed to the existing structure. Utility Model Content

[0004] The purpose of this utility model is to provide a semi-dry desulfurization device for industrial boilers to solve the problem mentioned in the background art: the flue gas generated during the operation of industrial boilers needs to be desulfurized. There are existing desulfurization and purification devices for sulfur dioxide pollution, but the existing desulfurization structures have problems such as simple structure, poor desulfurization stability, and low desulfurization efficiency. Further improvements are needed to address these issues.

[0005] To achieve the above objectives, this utility model provides the following technical solution: It includes a desulfurization tank with an open upper surface and a cover plate disposed on the upper surface of the desulfurization tank. A water pump is installed on the rear side of the desulfurization tank. An installation assembly is provided on the cover plate. A fixing rod is installed on the lower surface of the cover plate. A water spray frame is installed at the bottom end of the fixing rod. Several circular holes are opened on the lower surface of the water spray frame. An annular pipe is installed on the upper surface of the cover plate. An output pipe is connected to the outlet of the water pump. One end of the output pipe is connected to the annular pipe. Several connecting pipes are connected to the cover plate. The top ends of the connecting pipes are connected to the annular pipe, and the bottom ends of the connecting pipes are connected to the water spray frame. A flue gas guide pipe is connected to the left side of the desulfurization tank. A flue gas outlet pipe is connected to the cover plate. An vent pipe is connected to the bottom of the desulfurization tank. A valve is installed on the vent pipe. A liquid extraction pipe is connected to the inlet of the water pump. One end of the liquid extraction pipe extends through into the desulfurization tank.

[0006] The above scheme involves setting up a water pump, a ring pipe, and a sprinkler frame. The flue gas is transported into the desulfurization tank using the flue gas guide pipe. The water pump then extracts liquid from the bottom of the desulfurization tank, which, along with the output pipe and ring pipe, enters the connecting pipe. The flue gas is then wetted and desulfurized through circular holes in the sprinkler frame. Because the sprinkler frame acts like a showerhead, the desulfurization reaction can be carried out evenly on the incoming flue gas. Combined with the flue gas outlet pipe, the desulfurized gas is discharged, improving the desulfurization effect and stability.

[0007] In the above scheme, it should be noted that the water pump is electrically connected to an external power source.

[0008] In a preferred embodiment, an annular support plate is installed inside the desulfurization tank. The support plate is located above the liquid extraction pipe, and a filter screen is provided on the upper surface of the support plate. A limit component is provided on the filter screen.

[0009] The above scheme uses a support plate and a filter screen. The support plate supports the filter screen, and the filter screen filters the desulfurized liquid. This facilitates the interception of the reaction that occurs after desulfurization, preventing reactants from accumulating at the bottom of the desulfurization tank, and thus simplifies the structure.

[0010] In a preferred embodiment, the limiting component includes two locking plates, and the front and rear sides of the inner wall of the desulfurization tank are provided with locking grooves. The two locking plates are respectively located in the two locking grooves, and one end of the locking plate is fixedly connected to the filter screen plate.

[0011] By adopting the above scheme, by setting a clamping plate, the position of the filter screen is limited and determined by the sliding action of one end of the clamping plate in the clamping groove, thereby improving the stability and firmness of the filter screen and allowing the filter screen to be stably placed in the desulfurization tank.

[0012] In a preferred embodiment, two slide rods are slidably mounted on the support plate. The top end of the slide rod abuts against the filter screen plate, and a base plate is installed at the bottom end of the slide rod. Springs with their two ends fixedly connected to the base plate and the support plate, respectively, are sleeved on the slide rod.

[0013] By adopting the above solution, a sliding rod and a spring are set up. The bottom end of the sliding rod is sealed by the base plate. Combined with the sliding rod sliding on the support plate and the elasticity of the spring, the filter screen is pushed upward by the spring when the cover plate is disassembled, which makes it easy to remove and replace the filter screen quickly and easily.

[0014] In a preferred embodiment, four intercepting rods are installed on the lower surface of the sprinkler frame, and four intercepting grooves are provided on the upper surface of the filter screen to cooperate with the intercepting rods, with the bottom end of the intercepting rods extending into the intercepting grooves.

[0015] By adopting the above solution, by setting up an intercepting rod, and utilizing the fact that the bottom end of the intercepting rod is located in the intercepting groove, it is convenient to move the filter screen plate to the support plate during the installation of the cover plate by using the intercepting rod to resist the filter screen plate, which makes the operation convenient.

[0016] In a preferred embodiment, the mounting assembly includes two sets of L-shaped mounting plates, with two mounting plates in each set. The two sets of mounting plates are respectively mounted on the left and right sides of the cover plate. Bolts are threaded onto the mounting plates, and the tail ends of the bolts are threadedly connected to the desulfurization tank body.

[0017] By adopting the above scheme, by setting up an installation plate and bolts, the installation plate is fixedly connected to the cover plate. While the installation plate is installed by bolts, the cover plate is also threadedly fixed to the desulfurization tank body. The bolt thread installation allows for easy loosening of the bolts to disassemble the cover plate at any time.

[0018] In a preferred embodiment, the upper surface of the desulfurization tank is provided with four slots, and a pin is provided in each slot. The top of the pin is fixedly connected to the cover plate.

[0019] By adopting the above solution, a pin is set up, which cooperates with the slot. The bottom end of the pin extends into the slot. When installing the cover plate, the pin is used to position and determine the position of the cover plate, which facilitates the quick and easy installation and fixation of the cover plate and improves the stability of the cover plate.

[0020] In a preferred embodiment, a rotating column is installed on the upper surface of the flue gas outlet pipe, and a baffle is rotatably installed on the rotating column, with the lower surface of the baffle in contact with the upper surface of the flue gas outlet pipe.

[0021] By adopting the above scheme, a rotating column and a baffle are set up. The baffle is used to block and seal the opening of the flue gas outlet pipe. Combined with the function of the rotating column, the baffle can be rotated at any time to open the flue gas outlet pipe and facilitate the discharge of the desulfurized flue gas.

[0022] Compared with the prior art, the beneficial effects of this utility model are:

[0023] This semi-dry desulfurization device for industrial boilers uses a water pump, a ring pipe, and a sprinkler frame. The flue gas is transported to the desulfurization tank via a flue gas guide pipe. The water pump then extracts liquid from the bottom of the tank, which, along with the output pipe and ring pipe, flows into a connecting pipe. The incoming flue gas is then wetted and desulfurized through circular holes in the sprinkler frame. Because the sprinkler frame acts like a showerhead, it ensures a uniform desulfurization reaction. Combined with the flue gas outlet pipe, the desulfurized gas is discharged, improving the desulfurization effect and stability.

[0024] This semi-dry desulfurization device for industrial boilers uses a support plate and a filter screen. The support plate supports the filter screen, and the filter screen filters the desulfurized liquid, thus facilitating the interception of the reaction that occurs after desulfurization and preventing reactants from accumulating at the bottom of the desulfurization tank. This results in a simple structure. Attached Figure Description

[0025] Figure 1 This is a schematic diagram of the structure of this utility model;

[0026] Figure 2 This is a schematic diagram of the main structure of the desulfurization tank of this utility model;

[0027] Figure 3 This is a side view sectional structural diagram of the desulfurization tank of this utility model.

[0028] In the diagram: 1. Desulfurization tank; 2. Cover plate; 3. Water pump; 4. Output pipe; 5. Ring pipe; 6. Connecting pipe; 7. Fixing rod; 8. Sprinkler frame; 9. Filter screen; 10. Drain pipe; 11. Valve; 12. Flue gas guide pipe; 13. Flue gas outlet pipe; 14. Liquid extraction pipe; 15. Support plate; 16. Clamping plate; 17. Pin; 18. Mounting plate; 19. Bolt; 20. Baffle; 21. Rotating column; 22. Sliding rod; 23. Spring; 24. Base plate; 25. Interception rod. Detailed Implementation

[0029] Please see Figure 1-3This utility model provides a semi-dry desulfurization device for industrial boilers, including a desulfurization tank 1 with an open upper surface and a cover plate 2 installed on the upper surface of the desulfurization tank 1. A water pump 3 is installed on the rear side of the desulfurization tank 1. An installation assembly is provided on the cover plate 2. A fixing rod 7 is installed on the lower surface of the cover plate 2, and a water spray frame 8 is installed at the bottom end of the fixing rod 7. Several circular holes are opened on the lower surface of the water spray frame 8. An annular pipe 5 is installed on the upper surface of the cover plate 2. The outlet of the water pump 3 is connected to an output pipe 4, one end of which is connected to the annular pipe 5. Several connecting pipes 6 are connected to the cover plate 2. The top ends of the connecting pipes 6 are all connected to the annular pipe 5, and the bottom ends of the connecting pipes 6 are all connected to the water spray frame 8. A flue gas guide pipe 12 is connected to the left side of the desulfurization tank 1, and a flue gas guide pipe 12 is connected to the cover plate 2. The bottom of the desulfurization tank 1 is connected to the outlet pipe 13 and the drain pipe 10. A valve 11 is installed on the drain pipe 10. The inlet of the water pump 3 is connected to the liquid extraction pipe 14. One end of the liquid extraction pipe 14 extends through into the desulfurization tank 1. By setting up the water pump 3, the annular pipe 5 and the water spray frame 8, the flue gas is transported into the desulfurization tank 1 by the action of the flue gas guide pipe 12. Then, the water pump 3 extracts the liquid at the bottom of the desulfurization tank 1 and, with the action of the outlet pipe 4 and the annular pipe 5, it enters the connecting pipe 6. Then, through the circular hole on the water spray frame 8, the incoming flue gas is wetted and desulfurized. Since the water spray frame 8 is similar to a sprinkler, the incoming flue gas can be desulfurized evenly. With the action of the flue gas outlet pipe 13, the desulfurized gas is discharged, improving the desulfurization effect and stability.

[0030] An annular support plate 15 is installed inside the desulfurization tank 1. The support plate 15 is located above the liquid extraction pipe 14. A filter screen plate 9 is provided on the upper surface of the support plate 15. A limiting component is provided on the filter screen plate 9. By setting the support plate 15 and the filter screen plate 9, the support plate 15 supports the filter screen plate 9. Combined with the function of the filter screen plate 9, the desulfurized liquid is filtered, which facilitates the interception of the reaction generated after desulfurization and avoids the accumulation of reactants at the bottom of the desulfurization tank 1, thus simplifying the structure.

[0031] The limiting component includes two clamping plates 16. The front and rear sides of the inner wall of the desulfurization tank 1 are provided with clamping grooves. The two clamping plates 16 are respectively located in the two clamping grooves. One end of the clamping plate 16 is fixedly connected to the filter screen plate 9. By setting the clamping plate 16, the position of the filter screen plate 9 is limited and determined by the sliding action of one end of the clamping plate 16 in the clamping groove, thereby improving the stability and firmness of the filter screen plate 9, so that the filter screen plate 9 can be stably placed in the desulfurization tank 1.

[0032] Two sliding rods 22 are slidably installed on the support plate 15. The top of the sliding rod 22 abuts against the filter screen plate 9, and the bottom of the sliding rod 22 is installed with a base plate 24. Springs 23 are sleeved on the sliding rod 22 and fixedly connected to the base plate 24 and the support plate 15 at both ends respectively. By setting the sliding rod 22 and the springs 23, the bottom of the sliding rod 22 is blocked by the action of the base plate 24. Combined with the sliding of the sliding rod 22 on the support plate 15 and the elastic action of the springs 23, when the cover plate 2 is disassembled, the filter screen plate 9 is pushed upward by the reaction force of the springs 23 through the sliding rods 22, so that the filter screen plate 9 can be easily and quickly removed and replaced.

[0033] Four intercepting rods 25 are installed on the lower surface of the sprinkler frame 8, and four intercepting grooves are provided on the upper surface of the filter screen plate 9 to cooperate with the intercepting rods 25. The bottom end of the intercepting rod 25 extends into the intercepting groove. By setting the intercepting rod 25, the bottom end of the intercepting rod 25 is located in the intercepting groove, which facilitates the installation of the cover plate 2. The intercepting rod 25 abuts against the filter screen plate 9, thereby moving the filter screen plate 9 onto the support plate 15. The operation is convenient.

[0034] The mounting assembly includes two sets of L-shaped mounting plates 18, with two plates in each set. The two sets of mounting plates 18 are installed on the left and right sides of the cover plate 2, respectively. Bolts 19 are threaded onto the mounting plates 18, and the tail ends of the bolts 19 are threadedly connected to the desulfurization tank 1. By setting up the mounting plates 18 and bolts 19, the mounting plates 18 are fixedly connected to the cover plate 2. While the mounting plates 18 are installed by the bolts 19, the cover plate 2 is also threadedly fixed to the desulfurization tank 1. The threaded installation of the bolts 19 allows for easy loosening of the bolts 19 to disassemble the cover plate 2 at any time.

[0035] The upper surface of the desulfurization tank 1 is provided with four slots, and a pin 17 is provided in the slot. The top of the pin 17 is fixedly connected to the cover plate 2. By setting the pin 17, the pin 17 cooperates with the slot, and the bottom of the pin 17 extends into the slot. When installing the cover plate 2, the pin 17 is used to position and determine the position of the cover plate 2, so as to facilitate and quickly install and fix the cover plate 2, thereby improving the stability of the cover plate 2.

[0036] A rotating column 21 is installed on the upper surface of the flue gas outlet pipe 13. A baffle 20 is rotatably mounted on the rotating column 21, and the lower surface of the baffle 20 is in contact with the upper surface of the flue gas outlet pipe 13. By setting up the rotating column 21 and the baffle 20, the opening of the flue gas outlet pipe 13 is blocked and sealed by the baffle 20. Combined with the function of the rotating column 21, the baffle 20 can be rotated at any time to open the flue gas outlet pipe 13 and facilitate the discharge of desulfurized flue gas.

[0037] In operation, the desulfurization liquid is introduced into the desulfurization tank 1 through the flue gas guide pipe 12. The flue gas guide pipe 12 is then connected to the boiler's exhaust pipe. The water pump 3 is then started, and it uses the extraction pipe 14 to draw the desulfurization liquid from the tank 1. The liquid is then drawn through the output pipe 4 into the annular pipe 5, then into the connecting pipe 6, and finally into the sprinkler frame 8. The liquid is discharged through the circular holes on the sprinkler frame 8. The flue gas enters the desulfurization tank 1 through the flue gas guide pipe 12 and undergoes desulfurization through close contact with the desulfurization liquid. The discharged liquid is then filtered through the filter screen 9. The newly accumulated material is recycled to the bottom of the desulfurization tank 1. Then, the rotating column 21 is driven, which drives the baffle 20 to rotate. At this time, the baffle 20 moves away from the flue gas outlet pipe 13, and the desulfurized flue gas is discharged from the flue gas outlet pipe 13. When the filter screen needs to be replaced, the bolt 19 is loosened, and then the cover plate 2 is moved upward. The cover plate 2 drives the bottom end of the pin 17 to move out of the slot. At this time, the intercepting rod 25 moves upward, and the filter screen plate 9 moves upward under the reaction force of the spring 23. At this time, the sliding rod 22 slides on the support plate 15, pushing the filter screen plate 9 upward, so that the filter screen plate 9 can be replaced.

Claims

1. A semi-dry desulfurization device for industrial boilers, characterized in that: The system includes a desulfurization tank (1) with an opening on its upper surface and a cover plate (2) on the upper surface of the desulfurization tank (1). A water pump (3) is installed on the rear side of the desulfurization tank (1). An installation assembly is provided on the cover plate (2). A fixing rod (7) is installed on the lower surface of the cover plate (2). A water spray frame (8) is installed at the bottom end of the fixing rod (7). Several circular holes are opened on the lower surface of the water spray frame (8). An annular pipe (5) is installed on the upper surface of the cover plate (2). An output pipe (4) is connected to the outlet of the water pump (3). One end of the output pipe (4) is connected to the annular pipe (5). The cover plate (2) is connected to... The desulfurization tank (1) is equipped with several connecting pipes (6), the top ends of which are connected to the annular pipe (5) and the bottom ends of which are connected to the sprinkler frame (8). A flue gas guide pipe (12) is connected to the left side of the desulfurization tank (1). A flue gas outlet pipe (13) is connected to the cover plate (2). A drain pipe (10) is connected to the bottom of the desulfurization tank (1). A valve (11) is installed on the drain pipe (10). A liquid extraction pipe (14) is connected to the inlet of the water pump (3). One end of the liquid extraction pipe (14) extends through into the desulfurization tank (1).

2. The semi-dry desulfurization device for industrial boilers according to claim 1, characterized in that: An annular support plate (15) is installed inside the desulfurization tank (1). The support plate (15) is located above the liquid extraction pipe (14). A filter screen plate (9) is provided on the upper surface of the support plate (15). A limit component is provided on the filter screen plate (9).

3. The semi-dry desulfurization device for industrial boilers according to claim 2, characterized in that: The limiting component includes two locking plates (16). The front and rear sides of the inner wall of the desulfurization tank (1) are provided with locking grooves. The two locking plates (16) are respectively located in the two locking grooves. One end of the locking plate (16) is fixedly connected to the filter screen plate (9).

4. The semi-dry desulfurization device for industrial boilers according to claim 2, characterized in that: Two sliding rods (22) are slidably installed on the support plate (15). The top of the sliding rod (22) abuts against the filter screen plate (9). The bottom of the sliding rod (22) is equipped with a base plate (24). A spring (23) is sleeved on the sliding rod (22) and its two ends are fixedly connected to the base plate (24) and the support plate (15) respectively.

5. The semi-dry desulfurization device for industrial boilers according to claim 2, characterized in that: The lower surface of the sprinkler frame (8) is equipped with four intercepting rods (25), and the upper surface of the filter screen (9) is provided with four intercepting grooves that cooperate with the intercepting rods (25). The bottom end of the intercepting rod (25) extends into the intercepting groove.

6. The semi-dry desulfurization device for industrial boilers according to claim 1, characterized in that: The installation assembly includes two sets of L-shaped mounting plates (18), with two mounting plates (18) in each set. The two sets of mounting plates (18) are respectively installed on the left and right sides of the cover plate (2). Bolts (19) are threaded on the mounting plates (18), and the tail end of the bolts (19) is threaded to the desulfurization tank body (1).

7. The semi-dry desulfurization device for industrial boilers according to claim 1, characterized in that: The upper surface of the desulfurization tank (1) is provided with four slots, and a pin (17) is provided in the slot. The top of the pin (17) is fixedly connected to the cover plate (2).

8. The semi-dry desulfurization device for industrial boilers according to claim 1, characterized in that: A rotating column (21) is installed on the upper surface of the flue gas outlet pipe (13), and a baffle (20) is rotatably installed on the rotating column (21). The lower surface of the baffle (20) is in contact with the upper surface of the flue gas outlet pipe (13).

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