Catalytic oxidation CO furnace

Abstract

The utility model relates to the technical field of waste gas treatment, in particular to a catalytic oxidation CO furnace, which comprises an outer cavity, an inner cavity, a gas inlet pipe, an exhaust pipe, a catalytic device, a heat exchange assembly and a dust filtering and separating device, a gas inlet area, a catalytic area and a heat exchange area which are communicated in sequence are arranged in the outer cavity, the heat exchange assembly is arranged on the heat exchange area in a penetrating mode, and the dust filtering and separating device is arranged in the inner cavity. The two ends of the heat exchange assembly communicate with the inner cavity and the air inlet area correspondingly, the catalytic device is arranged in the catalytic area, and the dust filtering and separating device is arranged in the inner cavity. According to the catalytic oxidation CO furnace disclosed by the invention, the gas inlet pipe and the gas outlet pipe are adjacently arranged on the top of the outer cavity, waste gas firstly sinks and then floats upwards, and the processes of gas inlet, catalytic oxidation reaction and heat exchange are orderly completed, so that the treatment effect of the waste gas is improved; and meanwhile, the dust filtering and separating device is arranged to filter out dust particles of the waste gas, dust is prevented from being accumulated on the heat exchange assembly and the catalytic device, and normal operation of equipment is ensured.

Description

Technical Field

[0001] This utility model relates to the field of waste gas treatment technology, and in particular to a catalytic oxidation CO furnace. Background Technology

[0002] With the continuous development and advancement of technology, catalytic oxidation is one of the most commonly used methods in the treatment of waste gas to protect the environment from pollution. Catalytic combustion is a purification method that uses a catalyst to oxidize and decompose combustible substances in waste gas at a relatively low temperature. Therefore, catalytic combustion is also known as catalytic chemical conversion. Because the catalyst accelerates the oxidation and decomposition process, most hydrocarbons can be completely oxidized at a temperature of 300-450℃. However, a small amount of dust particles still exist in the waste gas, which can easily accumulate on the heat exchange tubes or catalytic device when it enters the catalytic oxidation furnace, affecting the normal operation of the heat exchange or catalytic steps.

[0003] It is evident that existing technologies still need improvement and enhancement. Utility Model Content

[0004] In view of the shortcomings of the prior art, the purpose of this utility model is to provide a catalytic oxidation CO furnace to solve the problem that dust easily accumulates in existing catalytic oxidation furnaces, which affects the normal operation of the equipment.

[0005] To achieve the above objectives, the present invention adopts the following technical solution:

[0006] A catalytic oxidation CO furnace includes an outer cavity, an inner cavity, an inlet pipe, an exhaust pipe, a catalytic device, a heat exchange assembly, and a dust separation device. The inlet pipe and the exhaust pipe are adjacent to each other on the top of the outer cavity. The outer cavity has an inlet zone, a catalytic zone, and a heat exchange zone that are sequentially connected. The exhaust pipe is connected to the heat exchange zone. The inner cavity is located on the top of the outer cavity. The inlet pipe is connected to the inner cavity. The heat exchange assembly passes through the heat exchange zone. Both ends of the heat exchange assembly are connected to the inner cavity and the inlet zone, respectively. The catalytic device is located in the catalytic zone. The dust separation device is located in the inner cavity and is positioned between the outlet end of the inlet pipe and the inlet end of the heat exchange assembly.

[0007] As described above, in a catalytic oxidation CO furnace, the inner cavity includes a first cavity, a second cavity, and a connecting port stacked together. The outlet end of the inlet pipe is connected to one end of the first cavity. The connecting port is located on the side of the first cavity away from the outlet end of the inlet pipe. The connecting port connects the first cavity and the second cavity. The dust separation device is located in the first cavity. The inlet end of the heat exchange assembly is connected to the second cavity.

[0008] As described above, in a catalytic oxidation CO furnace, the dust separation device includes a filtration mechanism, a pulse backflushing mechanism, a dust collection mechanism, and a separation mechanism. The filtration mechanism and the pulse backflushing mechanism are arranged sequentially along the airflow direction of the first cavity. The separation mechanism is located at the connection between the first cavity and the second cavity. The dust collection mechanism is located on the outer cavity and communicates with the first cavity.

[0009] As described above, in a catalytic oxidation CO furnace, the partitioning mechanism includes a partition plate, two rotating columns, a drive motor, two anti-rotation edges, and two snap-fit ​​grooves. The partition plate is disposed on the communication port. The two rotating columns are respectively disposed on both sides of the partition plate and are rotatably disposed on both sides of the outer cavity. The drive motor is disposed on the outer cavity and connected to any of the rotating columns. The two anti-rotation edges are symmetrically disposed on both sides of the communication port along the axis of any of the rotating columns. The two snap-fit ​​grooves are symmetrically disposed on both sides of the partition plate along the axis of the partition plate, and the two anti-rotation edges are respectively snapped into the two snap-fit ​​grooves one-to-one.

[0010] As described above, in a catalytic oxidation CO furnace, a first baffle is provided on the top of the first cavity, and a second baffle is provided on the bottom of the second cavity. The two sides of the partition plate abut against the first baffle and the second baffle respectively. The first baffle has a first inclined surface on the side facing the first cavity, and the second baffle has a second inclined surface on the side facing the second cavity.

[0011] As described above, in a catalytic oxidation CO furnace, the filtration mechanism includes an electrostatic adsorption filter and a high-efficiency fiber filter arranged sequentially along the airflow direction of the first cavity.

[0012] As described above, in a catalytic oxidation CO furnace, the dust collection mechanism includes a first dust collection pipe, two second dust collection pipes, a first check valve, a dust collection box, and a fan. The air inlet ends of the first dust collection pipe and the two second dust collection pipes are all connected to the first cavity. The air inlet of the first dust collection pipe is located between the electrostatic adsorption filter and the high-efficiency fiber filter. The air inlet ends of the two second dust collection pipes are respectively located on both sides of the filter mechanism. The air outlet ends of the two dust collection pipes are respectively connected to both sides of the first dust collection pipe. The first check valve is located on the air outlet end of the first dust collection pipe. The first check valve, the dust collection box, and the fan are connected in sequence.

[0013] In the catalytic oxidation CO furnace described above, a second check valve is provided at the outlet end of the inlet pipe.

[0014] Beneficial effects:

[0015] This utility model discloses a catalytic oxidation CO furnace, including an outer cavity, an inner cavity, an inlet pipe, an exhaust pipe, a catalytic device, a heat exchange assembly, and a dust separation device. The outer cavity contains an inlet zone, a catalytic zone, and a heat exchange zone connected in sequence. Exhaust gas enters the inner cavity through the inlet pipe. The dust separation device filters dust particles from the exhaust gas. The filtered exhaust gas enters the heat exchange assembly for heat exchange and temperature increase before flowing to the inlet zone. The catalytic device in the catalytic zone catalyzes the oxidation of the exhaust gas, converting it into carbon dioxide and water. During the catalytic process… The process involves releasing heat and transferring it to the heat exchange components in the heat exchange zone to heat the subsequent exhaust gas. The exhaust gas is then discharged through the exhaust pipe. This catalytic oxidation CO furnace, disclosed in this application, improves the exhaust gas treatment efficiency by placing the inlet pipe and the exhaust pipe adjacent to each other on the top of the outer cavity. This allows the exhaust gas to first sink and then float, completing the intake, catalytic oxidation reaction, and heat exchange processes in an orderly manner. Simultaneously, the dust separation device filters out dust particles from the exhaust gas, preventing dust accumulation on the heat exchange components and catalytic device, thus ensuring the normal operation of the equipment. Attached Figure Description

[0016] Figure 1 This is a schematic diagram of the structure of the catalytic oxidation CO furnace provided by this utility model;

[0017] Figure 2 A cross-sectional view of the catalytic oxidation CO furnace provided by this utility model;

[0018] Reference numerals: 1. Outer cavity; 11. Intake zone; 12. Catalytic zone; 13. Heat exchange zone; 2. Inner cavity; 21. First cavity; 22. Second cavity; 23. First stop block; 24. Second stop block; 25. First inclined surface; 26. Second inclined surface; 3. Intake pipe; 4. Exhaust pipe; 5. Catalytic device; 6. Heat exchange assembly; 7. Dust separation device; 71. Filtering mechanism; 711. Electrostatic adsorption filter; 712. High-efficiency fiber filter; 72. Pulse backflushing mechanism; 73. Dust suction mechanism; 731. First dust suction pipe; 732. Second dust suction pipe; 733. First check valve; 734. Dust collection box; 735. Fan; 74. Separating mechanism; 741. Separating plate; 742. Drive motor; 743. Anti-rotation edge; 744. Snap-fit ​​groove; 8. Second check valve. Detailed Implementation

[0019] This utility model provides a catalytic oxidation CO furnace. To make the purpose, technical solution and effects of this utility model clearer and more explicit, the following describes this utility model in further detail with reference to the accompanying drawings and examples.

[0020] In the description of this utility model, it should be understood that the terms "top" and other terms indicating the orientation or positional relationship are based on the orientation or positional relationship shown in the accompanying drawings, and are only for the convenience of describing this utility model and simplifying the description, and should not be construed as limiting this utility model; in addition, the terms "installation" and "connection" should be interpreted broadly, and those skilled in the art can understand the specific meaning of the above terms in this utility model according to the specific circumstances.

[0021] like Figure 1-2 As shown in the figure, this application proposes a catalytic oxidation CO furnace, including an outer cavity 1, an inner cavity 2, an inlet pipe 3, an exhaust pipe 4, a catalytic device 5, a heat exchange assembly 6, and a dust separation device 7. The inlet pipe 3 and the exhaust pipe 4 are arranged adjacently on the top of the outer cavity 1. The outer cavity 1 is provided with an inlet zone 11, a catalytic zone 12, and a heat exchange zone 13 connected in sequence. The exhaust pipe 4 is connected to the heat exchange zone 13. The inner cavity 2 is located on the top of the outer cavity 1. The inlet pipe 3 is connected to the inner cavity 2. The heat exchange assembly 6 passes through the heat exchange zone 13. The two ends of the heat exchange assembly 6 are respectively connected to the inner cavity 2 and the inlet zone 11. The catalytic device 5 is located in the catalytic zone 12. The dust separation device 7 is located in the inner cavity 2 and is located between the outlet end of the inlet pipe 3 and the inlet end of the heat exchange assembly 6.

[0022] This utility model discloses a catalytic oxidation CO furnace, including an outer cavity 1, an inner cavity 2, an inlet pipe 3, an exhaust pipe 4, a catalytic device 5, a heat exchange assembly 6, and a dust separation device 7. The outer cavity 1 contains an inlet zone 11, a catalytic zone 12, and a heat exchange zone 13 connected sequentially. Exhaust gas enters the inner cavity 2 through the inlet pipe 3. The dust separation device 7 filters dust particles from the exhaust gas. The filtered exhaust gas enters the heat exchange assembly 6 for heat exchange and temperature increase before flowing to the inlet zone 11. The catalytic device 5 in the catalytic zone 12 catalyzes the exhaust gas, converting it into carbon dioxide and CO2. Water releases heat during the catalytic process and transfers the heat to the heat exchange component 6 in the heat exchange zone 13 to heat the subsequent exhaust gas. The exhaust gas after heat exchange is discharged through the exhaust pipe 4. The catalytic oxidation CO furnace disclosed in this application improves the exhaust gas treatment effect by arranging the air inlet pipe 3 and the exhaust pipe 4 adjacently on the top of the outer cavity 1. The exhaust gas first sinks and then floats, and completes the process of air intake, catalytic oxidation reaction and heat exchange in an orderly manner. At the same time, the dust separation device filters out the dust particles in the exhaust gas, preventing dust from accumulating on the heat exchange component and catalytic device, and ensuring the normal operation of the equipment.

[0023] The inner cavity 2 includes a first cavity 21, a second cavity 22, and a connecting port stacked together. The outlet end of the air inlet pipe 3 is connected to one end of the first cavity 21. The connecting port is located on the side of the first cavity 21 away from the outlet end of the air inlet pipe 3. The connecting port connects the first cavity 21 and the second cavity 22. The dust separation device 7 is located inside the first cavity 21. The air inlet end of the heat exchange component 6 is connected to the second cavity 22. Referring to the figure, the first cavity 21 and the second cavity 22 form a Z-shaped channel, which slows down the speed of exhaust gas flow to a certain extent and ensures that the exhaust gas is fully filtered.

[0024] The dust separation device 7 includes a filter mechanism 71, a pulse backflushing mechanism 72, a dust collection mechanism 73, and a separating mechanism 74. The filter mechanism 71 and the pulse backflushing mechanism 72 are arranged sequentially along the airflow direction of the first cavity 21. The separating mechanism 74 is located at the connection between the first cavity 21 and the second cavity 22. The dust collection mechanism 73 is located on the outer cavity 1 and communicates with the first cavity 21. The filter mechanism 71 filters the exhaust gas. When too much dust accumulates in the filter mechanism 71, the separating mechanism 74 separates the first cavity 21 and the second cavity 22, and the pulse backflushing mechanism 72 shakes off the dust on the filter mechanism 71. The dust collection mechanism 73 absorbs the shaken-off dust, thereby ensuring the cleanliness of the filter mechanism 71.

[0025] The separating mechanism 74 includes a separating plate 741, two rotating columns, a drive motor 742, two anti-rotation edges 743, and two locking slots 744. The separating plate 741 is disposed on the connecting port. The two rotating columns are respectively disposed on both sides of the separating plate 741 and are rotatably disposed on both sides of the outer cavity 1. The drive motor 742 is disposed on the outer cavity 1 and connected to any of the rotating columns. The two anti-rotation edges 743 are symmetrically disposed on both sides of the connecting port along the axis of any of the rotating columns. The two locking slots 744 are symmetrically disposed on both sides of the separating plate 741 along the axis of the separating plate 741. The two anti-rotation edges 743 are respectively locked into the two locking slots 744 one-to-one. The first cavity 21 has a first stop 23 on its top and a second stop 24 on its bottom. The two sides of the partition plate 741 abut against the first stop 23 and the second stop 24, respectively. The first stop 23 has a first inclined surface 25 on the side facing the first cavity 21 and the second stop 24 has a second inclined surface 26 on the side facing the second cavity 22. When the partition plate 741 is open relative to the communication port, the two ends of the partition plate 741 abut against the first stop 23 and the second stop 24, respectively, so that the pulse backflushing mechanism 72 is separated from the inner cavity 2. At the same time, the first inclined surface 25 and the second inclined surface 26 guide the flow of exhaust gas.

[0026] The filtration mechanism 71 includes an electrostatic adsorption filter 711 and a high-efficiency fiber filter 712 arranged sequentially along the airflow direction of the first cavity 21, forming a multi-stage filtration to improve the gas filtration effect.

[0027] The dust collection mechanism 73 includes a first dust collection pipe 731, two second dust collection pipes 732, a first check valve 733, a dust collection box 734, and a fan 735. The air inlets of the first dust collection pipe 731 and the two second dust collection pipes 732 are all connected to the first cavity 21. The air inlet 3 of the first dust collection pipe 731 is located between the electrostatic adsorption filter 711 and the high-efficiency fiber filter 712. The air inlets of the two second dust collection pipes 732 are respectively located on both sides of the filter mechanism 71, and the air outlets of the two dust collection pipes are respectively connected to both sides of the first dust collection pipe 731. The first check valve 733 is located on the air outlet of the first dust collection pipe 731. The first check valve 733, the dust collection box 734, and the fan 735 are connected in sequence to ensure that all dust around the filter mechanism 71 is absorbed. At the same time, the first check valve 733 prevents dust backflow, ensuring the cleaning effect of the filter mechanism 71.

[0028] A second check valve 8 is provided on the outlet end of the air inlet pipe 3 to prevent dust from flowing back into the air inlet pipe 3 during the cleaning process of the filter mechanism 71 by the pulse backflushing mechanism 72, so as to avoid affecting the subsequent exhaust gas filtration effect and causing damage to upstream equipment.

[0029] It is understood that those skilled in the art can make equivalent substitutions or changes based on the technical solution and inventive concept of this utility model, and all such substitutions or changes should fall within the protection scope of this utility model.

Claims

1. A catalytic oxidation CO furnace, characterized in that, The device includes an outer cavity (1), an inner cavity (2), an intake pipe (3), an exhaust pipe (4), a catalytic converter (5), a heat exchange assembly (6), and a dust separation device (7). The intake pipe (3) and the exhaust pipe (4) are arranged adjacently on the top of the outer cavity (1). The outer cavity (1) has an intake zone (11), a catalytic converter (12), and a heat exchange zone (13) connected in sequence. The exhaust pipe (4) is connected to the heat exchange zone (13). The inner cavity (2) is located in the outer cavity (1). At the top, the air inlet pipe (3) is connected to the inner cavity (2), the heat exchange component (6) is installed on the heat exchange zone (13), and the two ends of the heat exchange component (6) are connected to the inner cavity (2) and the air inlet zone (11) respectively. The catalytic device (5) is located in the catalytic zone (12), and the dust separation device (7) is located in the inner cavity (2). The dust separation device (7) is located between the air outlet end of the air inlet pipe (3) and the air inlet end of the heat exchange component (6).

2. The catalytic oxidation CO furnace according to claim 1, characterized in that, The inner cavity (2) includes a first cavity (21), a second cavity (22) and a connecting port stacked together. The outlet end of the air inlet pipe (3) is connected to one end of the first cavity (21). The connecting port is located on the side of the first cavity (21) away from the outlet end of the air inlet pipe (3). The connecting port connects the first cavity (21) and the second cavity (22). The dust separation device (7) is located in the first cavity (21). The air inlet end of the heat exchange component (6) is connected to the second cavity (22).

3. A catalytic oxidation CO furnace according to claim 2, characterized in that, The dust separation device (7) includes a filter mechanism (71), a pulse backflushing mechanism (72), a dust suction mechanism (73), and a separation mechanism (74). The filter mechanism (71) and the pulse backflushing mechanism (72) are arranged sequentially along the airflow direction of the first cavity (21). The separation mechanism (74) is located at the connection between the first cavity (21) and the second cavity (22). The dust suction mechanism (73) is located on the outer cavity (1) and communicates with the first cavity (21).

4. A catalytic oxidation CO furnace according to claim 3, characterized in that, The separating mechanism (74) includes a separating plate (741), two rotating columns, a drive motor (742), two anti-rotation edges (743), and two snap-fit ​​grooves (744). The separating plate (741) is disposed on the connecting port. The two rotating columns are respectively disposed on both sides of the separating plate (741) and are rotatably disposed on both sides of the outer cavity (1). The drive motor (742) is disposed on the outer cavity (1) and connected to any of the rotating columns. The two anti-rotation edges (743) are symmetrically disposed on both sides of the connecting port along the axis of any of the rotating columns. The two snap-fit ​​grooves (744) are symmetrically disposed on both sides of the separating plate (741) along the axis of the separating plate (741). The two anti-rotation edges (743) are respectively snapped into the two snap-fit ​​grooves (744) one by one.

5. A catalytic oxidation CO furnace according to claim 4, characterized in that, The first cavity (21) has a first stop (23) on its top and the second cavity (22) has a second stop (24) on its bottom. The two sides of the partition plate (741) abut against the first stop (23) and the second stop (24) respectively. The first stop (23) has a first inclined surface (25) on the side facing the first cavity (21) and the second stop (24) has a second inclined surface (26) on the side facing the second cavity (22).

6. A catalytic oxidation CO furnace according to claim 3, characterized in that, The filtration mechanism (71) includes an electrostatic adsorption filter (711) and a high-efficiency fiber filter (712) arranged sequentially along the airflow direction of the first cavity (21).

7. A catalytic oxidation CO furnace according to claim 6, characterized in that, The dust collection mechanism (73) includes a first dust collection pipe (731), two second dust collection pipes (732), a first check valve (733), a dust collection box (734), and a fan (735). The air inlet ends of the first dust collection pipe (731) and the two second dust collection pipes (732) are all connected to the first cavity (21). The air inlet pipe (3) of the first dust collection pipe (731) is located between the electrostatic adsorption filter (711) and the high-efficiency fiber filter (712). The air inlet ends of the two second dust collection pipes (732) are respectively located on both sides of the filter mechanism (71). The air outlet ends of the two dust collection pipes are respectively connected to both sides of the first dust collection pipe (731). The first check valve (733) is located on the air outlet end of the first dust collection pipe (731). The first check valve (733), the dust collection box (734), and the fan (735) are connected in sequence.

8. A catalytic oxidation CO furnace according to claim 3, characterized in that, A second check valve (8) is provided on the outlet end of the air inlet pipe (3).

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