Flue gas desulfurization catalytic device

Abstract

The utility model belongs to the technical field of flue gas desulfurization catalysis, and particularly relates to a flue gas desulfurization catalysis device which comprises a first catalysis bin and a second catalysis bin, a connecting pipe is fixedly connected between the upper end of the second catalysis bin and the upper end of the first catalysis bin, a first mounting frame is fixedly connected in the first catalysis bin, and a second mounting frame is fixedly connected in the second catalysis bin. A heat conduction net is fixedly connected to the interior of the first mounting frame, a plurality of heating pipes are embedded in the heat conduction net, the two ends of each heating pipe are fixedly connected to the interior of the first mounting frame, and a protective top plate is arranged above the heat conduction net; according to the flue gas purification device, the contact area between flue gas and a water column can be increased, meanwhile, due to the fact that the water column with the stroke can be formed in the upward jetting process of the water column, the flue gas can make contact with the water column from the time when the flue gas makes contact with the water column to the time when the flue gas passes through the water column, and the sufficient foundation between the flue gas and liquid can be increased; the purification and desulfurization catalysis of the flue gas are improved.

Description

Technical Field

[0001] This utility model belongs to the field of flue gas desulfurization catalytic technology, and specifically relates to a flue gas desulfurization catalytic device. Background Technology

[0002] Catalytic devices for flue gas desulfurization refer to equipment that uses catalysts to accelerate the desulfurization reaction and improve desulfurization efficiency during the flue gas desulfurization process. Activated carbon adsorption-catalytic desulfurization devices are widely used in flue gas desulfurization catalytic operations due to their strong adaptability, lack of secondary pollution, simple operation, and low operating costs. However, in commonly used activated carbon adsorption-catalytic desulfurization devices, insufficient contact between the sprayed scrubbing liquid and the flue gas often leads to a decrease in the efficiency of flue gas desulfurization catalysis. Utility Model Content

[0003] This invention provides a flue gas desulfurization catalytic device that can disperse the flue gas located below in a small area, allowing the flue gas to be in a large diffusion state during contact with the water column. This helps to increase the contact area between the flue gas and the water column. At the same time, since the water column can form a water column with a stroke during the upward spraying process, the flue gas can be in contact with the water column from the moment it comes into contact with the water column until it passes through the water column. This helps to increase the sufficient foundation between the flue gas and the liquid, thereby improving the purification and desulfurization catalytic effects on the flue gas.

[0004] This utility model provides the following technical solution: a flue gas desulfurization catalytic device, comprising a first catalytic chamber and a second catalytic chamber, wherein a connecting pipe is fixedly connected between the upper ends of the second catalytic chamber and the first catalytic chamber; a first mounting frame is fixedly connected inside the first catalytic chamber, and a heat-conducting mesh is fixedly connected inside the first mounting frame; a plurality of heating tubes are embedded inside the heat-conducting mesh, and the two ends of the plurality of heating tubes are fixedly connected to the inside of the first mounting frame; a protective top plate is provided above the heat-conducting mesh, and a connecting plate is fixedly connected between the bottom of the protective top plate and the top of the first mounting frame; a second mounting frame is fixedly connected inside the second catalytic chamber, and a connecting plate is fixedly connected to the top of the second mounting frame. The system includes several connecting seats, with a spray seat fixedly connected to the top of each connecting seat. The interior of the second mounting frame has several ventilation slots, which are staggered with the spray seats. A water tank is fixedly connected to the outside of the second catalytic converter, and a first water supply pipe is fixedly connected to the bottom of the water tank. The other end of the first water supply pipe extends into the interior of the second catalytic converter and is fixedly connected to the inner wall of the second catalytic converter. Several second water supply pipes are fixedly connected to the top of the first water supply pipe, and these second water supply pipes are connected to the spray seats. An exhaust pipe is located below the first water supply pipe, and the other end of the exhaust pipe extends to the outside of the second catalytic converter.

[0005] The connecting pipe has a connecting groove inside, and the second catalyst chamber is connected to the first catalyst chamber through the connecting groove.

[0006] Both the first catalytic chamber and the second catalytic chamber are fixedly connected to a support frame at their bottom.

[0007] The water storage tank is fixedly connected to a third water supply pipe on one side, and the bottom of the first catalytic chamber is provided with an exhaust port, which is connected to the third water supply pipe.

[0008] The exhaust pipe is fixedly connected to a water guide plate at the bottom of one end of the second catalytic converter, and a breathable membrane is fixedly embedded inside the exhaust pipe.

[0009] An activated carbon placement plate is provided above the heating tube, and the activated carbon placement plate is fixedly connected to the inside of the first mounting frame.

[0010] An air intake pipe is fixed on one side of the first catalytic chamber.

[0011] The first catalytic chamber has a control panel fixedly connected to one side, and the control panel is connected to the heating tube via a connecting line.

[0012] The beneficial effects of this invention are as follows: Under the action of the spray seat, the impact force generated by the upward spray of the water column can disperse the flue gas located below in a small area, allowing the flue gas to be in a large diffusion state during contact with the water column. This helps to increase the contact area between the flue gas and the water column. At the same time, since the water column can form a water column with a stroke during the upward spray, the flue gas can be in contact with the water column from the moment it comes into contact with the water column until it passes through the water column. This helps to increase the sufficient foundation between the flue gas and the liquid, and improve the purification and desulfurization catalysis of the flue gas. In addition, under the action of the heating tube, the activated carbon can be reactivated by heating, so that the activated carbon can maintain good adsorption capacity.

[0013] The parts of the device not covered herein are the same as or can be implemented using existing technologies. Attached Figure Description

[0014] Figure 1 This is a schematic diagram of the front cross-sectional structure of this utility model;

[0015] Figure 2 This is a top view of the structure between the first mounting frame, the heat-conducting mesh, and the heating pipe in this utility model.

[0016] Figure 3 This is a top view of the structure between the second mounting frame and the connecting seat, the injection seat, and the ventilation groove in this utility model.

[0017] In the diagram: 1. First catalytic converter chamber; 11. Second catalytic converter chamber; 111. Exhaust port; 12. Connecting pipe; 121. Connecting groove; 13. Intake pipe; 14. Support frame; 2. First mounting frame; 21. Heat-conducting mesh; 22. Heating pipe; 221. Control panel; 23. Activated carbon placement plate; 24. Protective top plate; 241. Connecting plate; 3. Second mounting frame; 31. Connecting seat; 32. Injection seat; 33. Ventilation groove; 4. First water supply pipe; 41. Second water supply pipe; 5. Exhaust pipe; 51. Water guide plate; 52. Breathable membrane; 6. Water storage tank; 61. Third water supply pipe. Detailed Implementation

[0018] Please see Figures 1-3This utility model provides the following technical solution: a flue gas desulfurization catalytic device, comprising a first catalytic chamber 1 and a second catalytic chamber 11, wherein a connecting pipe 12 is fixedly connected between the upper ends of the second catalytic chamber 11 and the first catalytic chamber 1; a first mounting frame 2 is fixedly connected inside the first catalytic chamber 1, and a heat-conducting mesh 21 is fixedly connected inside the first mounting frame 2; a plurality of heating pipes 22 are embedded inside the heat-conducting mesh 21, and the two ends of the plurality of heating pipes 22 are fixedly connected to the inside of the first mounting frame 2; a protective top plate 24 is provided above the heat-conducting mesh 21, and a connecting plate 241 is fixedly connected between the bottom of the protective top plate 24 and the top of the first mounting frame 2; a second mounting frame 3 is fixedly connected inside the second catalytic chamber 11, and the top of the second mounting frame 3 is fixedly connected to the second catalytic chamber 11. A number of connecting seats 31 are connected, and an injection seat 32 is fixedly connected to the top of the connecting seat 31. A number of ventilation slots 33 are opened inside the second mounting frame 3, and the ventilation slots 33 and the injection seats 32 are distributed alternately. A water tank 6 is fixedly connected to the outside of the second catalytic chamber 11, and a first water supply pipe 4 is fixedly connected to the bottom of the water tank 6. The other end of the first water supply pipe 4 extends into the interior of the second catalytic chamber 11 and is fixedly connected to the inner wall of the second catalytic chamber 11. A number of second water supply pipes 41 are fixedly connected to the top of the first water supply pipe 4, and the number of second water supply pipes 41 are connected to the number of injection seats 32. An exhaust pipe 5 is provided below the first water supply pipe 4, and the other end of the exhaust pipe 5 extends through to the outside of the second catalytic chamber 11.

[0019] In this implementation scheme: both the first catalytic chamber 1 and the second catalytic chamber 11 provide reaction space for the desulfurization catalysis of flue gas. The first mounting frame 2 located in the first catalytic chamber 1 provides a connecting carrier between the heat-conducting mesh 21 and the first catalytic chamber 1. The heat-conducting mesh 21 provides a connecting carrier for the heating pipe 22 and also provides a passage for the gas below, as well as space for the activated carbon used for flue gas treatment. The protective top plate 24 located on top of the first mounting frame 2 provides protection for the activated carbon to prevent it from falling. The connecting plate 241 provides a connecting carrier between the protective top plate 24 and the first mounting frame 2. At this time, when the flue gas enters the first catalytic chamber 1... After passing through several activated carbon cells on the first mounting frame 2, the activated carbon adsorbs sulfur dioxide from the flue gas onto its surface. The flue gas then enters the second catalytic chamber 11 through the connecting pipe 12. The second mounting frame 3, located in the second catalytic chamber 11, provides a connecting carrier for the connecting seat 31 and the injection seat 32. During the desulfurization catalytic process, the injection seat 32 sprays a water column upwards. As the flue gas moves downwards, it passes through the water column, thus washing the flue gas and reducing impurities. Additionally, the injection seat 32 sprays water externally, and because the second catalytic chamber 11 is interconnected with the first catalytic chamber 1, it increases the humidity of the air in the first catalytic chamber 1. At this temperature, activated carbon acts as a catalyst carrier, supporting catalysts such as metal oxides. In the presence of oxygen and water vapor, it can catalytically oxidize sulfur dioxide to sulfur trioxide, facilitating subsequent regeneration of the activated carbon through heating. Simultaneously, sulfur dioxide or sulfuric acid can be recovered, restoring the adsorption activity of the activated carbon. Furthermore, by spraying the flue gas upwards from the spray nozzle 32, the impact force generated by the upward spray of the water column can disperse the flue gas below in a small area, allowing the flue gas to be in a larger diffused state during contact with the water column. This helps to increase the contact area between the flue gas and the water column. Additionally, due to the upward spray of the water column… During the process, a water column with a flow path can be formed. From the moment the flue gas comes into contact with the water column until it passes through the water column, the flue gas can maintain contact with the water column. This helps to increase the sufficient interaction between the flue gas and the liquid, thereby improving the purification and desulfurization catalysis of the flue gas. The exhaust pipe 5 located below the first water supply pipe 4 provides a channel for the flue gas to be discharged to the outside. In addition, the heating pipe 22 is used to heat the activated carbon. By heating the activated carbon, the saturated activated carbon can be reactivated. Water pumps are installed on both the third water supply pipe 61 and the first water supply pipe 4. During use, the water pumps on the first water supply pipe 4 and the third water supply pipe 61 are turned on to assist the water circulation in the entire device.

[0020] The connecting pipe 12 has a connecting groove 121 inside, and the second catalytic chamber 11 is connected to the first catalytic chamber 1 through the connecting groove 121; wherein the connecting groove 121 is used to provide a channel for the flow of flue gas.

[0021] The bottom of both the first catalyst chamber 1 and the second catalyst chamber 11 are fixedly connected to a support frame 14; the support frame 14 is the support component of the entire device.

[0022] A third water supply pipe 61 is fixedly connected to one side of the water storage tank 6. An exhaust port 111 is opened at the bottom of the first catalytic chamber 1 and is connected to the third water supply pipe 61. The exhaust port 111 is used to provide a channel for the liquid in the second catalytic chamber 11 to be discharged to the outside, while the third water supply pipe 61 is used to transport the liquid in the second catalytic chamber 11 to the inside of the water storage tank 6.

[0023] The exhaust pipe 5 is fixedly connected to a water guide plate 51 at the bottom of one end of the second catalytic converter 11, and a breathable membrane 52 is fixedly embedded inside the exhaust pipe 5; the water guide plate 51 guides the liquid in the exhaust pipe 5 to flow downward.

[0024] An activated carbon placement plate 23 is provided above the heating tube 22, and the activated carbon placement plate 23 is fixedly connected to the inside of the first mounting frame 2; wherein the activated carbon placement plate 23 is used to provide support for the activated carbon.

[0025] An air inlet pipe 13 is fixed on one side of the first catalytic chamber 1; wherein the air inlet pipe 13 is used to provide a channel for gas to flow into the first catalytic chamber 1.

[0026] A control panel 221 is fixedly connected to one side of the first catalytic chamber 1, and the control panel 221 is connected to the heating tube 22 via a connecting line. The control panel 221 is used to control the opening and closing of the heating tube 22. When it is necessary to heat the activated carbon, the heating tube 22 can be turned on through the control panel 221 to heat the activated carbon on the activated carbon placement plate 23.

[0027] The working principle and usage process of this utility model are as follows: When desulfurization catalysis of flue gas is required, the external flue gas discharge pipe is connected to the inlet pipe 13. At this time, the flue gas enters the first catalytic chamber 1 through the inlet pipe 13 and continues to move upward. When the flue gas passes through the activated carbon on the top of the activated carbon placement plate 23, the activated carbon can adsorb the sulfur dioxide in the flue gas on its surface. Then, the flue gas enters the second catalytic chamber 11 through the connecting groove 121. When the flue gas enters the second catalytic chamber 11, the body fluid in the water storage tank 6 enters the second water supply pipe 41 through the first water supply pipe 4 and is sprayed to the outside through the spray seat 32. When the water column comes into contact with the flue gas, it can wash the flue gas. At the same time, the flue gas continues to move downward and is discharged to the outside through the exhaust pipe 5. After the water column falls downward, it enters the third water supply pipe 61 through the exhaust hole 111 and enters the water storage tank 6 through the third water supply pipe 61.

Claims

1. A flue gas desulfurization catalytic device, comprising a first catalytic bin (1) and a second catalytic bin (11), and a connecting pipe (12) fixedly connected between the second catalytic bin (11) and the upper end of the first catalytic bin (1), characterized in that: The first catalytic chamber (1) is fixedly connected to a first mounting frame (2), and the first mounting frame (2) is fixedly connected to a heat-conducting mesh (21). Several heating tubes (22) are embedded inside the heat-conducting mesh (21), and both ends of the heating tubes (22) are fixedly connected to the inside of the first mounting frame (2). A protective top plate (24) is provided above the heat-conducting mesh (21), and a connecting plate (241) is fixedly connected between the bottom of the protective top plate (24) and the top of the first mounting frame (2). The second catalytic chamber (11) is fixedly connected to a second mounting frame (3), and several connecting seats (31) are fixedly connected to the top of the second mounting frame (3). An injection seat (32) is fixedly connected to the top of each connecting seat (31). The second mounting frame (3)... The interior of the second catalytic chamber (11) is provided with several ventilation slots (33), and the ventilation slots (33) and the injection seats (32) are interleaved. A water tank (6) is fixedly connected to the outside of the second catalytic chamber (11), and a first water supply pipe (4) is fixedly connected to the bottom of the water tank (6). The other end of the first water supply pipe (4) extends into the interior of the second catalytic chamber (11) and is fixedly connected to the inner wall of the second catalytic chamber (11). Several second water supply pipes (41) are fixedly connected to the top of the first water supply pipe (4), and the several second water supply pipes (41) are connected to the injection seats (32). An exhaust pipe (5) is provided below the first water supply pipe (4), and the other end of the exhaust pipe (5) extends through to the outside of the second catalytic chamber (11).

2. A flue gas desulphurization catalytic device according to claim 1, characterized in that: The connecting pipe (12) has a connecting groove (121) inside, and the second catalyst chamber (11) is connected to the first catalyst chamber (1) through the connecting groove (121).

3. A flue gas desulphurization catalytic device according to claim 1, characterized in that: The bottom of both the first catalyst chamber (1) and the second catalyst chamber (11) are fixedly connected to a support frame (14).

4. A flue gas desulphurization catalytic device according to claim 1, characterized in that: A third water supply pipe (61) is fixedly connected to one side of the water storage tank (6), and an exhaust hole (111) is opened at the bottom of the first catalyst chamber (1), and the exhaust hole (111) is connected to the third water supply pipe (61).

5. A flue gas desulphurization catalytic device according to claim 1, characterized in that: The exhaust pipe (5) is fixedly connected to a water guide plate (51) at the bottom of one end of the second catalytic chamber (11), and a breathable membrane (52) is fixedly embedded inside the exhaust pipe (5).

6. A flue gas desulphurization catalytic device according to claim 1, characterized in that: An activated carbon placement plate (23) is provided above the heating tube (22), and the activated carbon placement plate (23) is fixedly connected to the inside of the first mounting frame (2).

7. A flue gas desulphurization catalytic device according to claim 1, characterized in that: An air intake pipe (13) is fixed on one side of the first catalytic chamber (1).

8. A flue gas desulphurization catalytic device according to claim 1, characterized in that: A control panel (221) is fixedly connected to one side of the first catalyst chamber (1), and the control panel (221) is connected to the heating tube (22) via a connecting line.

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