Two-stage cyclone catalytic combustion environmental protection device

Abstract

The utility model belongs to catalytic combustion equipment technical field, concretely relates to a two -stage cyclone's catalytic combustion environmental protection equipment, this two -stage cyclone's catalytic combustion environmental protection equipment, including first cyclone tower, second cyclone tower, fan and catalytic combustion box, the first cyclone tower's air inlet end fixed communication has first two -way pipe, the left -hand end fixed communication of first two -way pipe has first valve, the left -hand end fixed communication of first valve has first three -way pipe. This two -stage cyclone's catalytic combustion environmental protection equipment passes through first two -way pipe, first valve, first three -way pipe, air inlet pipe, second valve, four -way pipe, third valve, second two -way pipe, fourth valve, third two -way pipe, fourth two -way pipe, fifth valve, second three -way pipe, sixth valve and fifth two -way pipe's cooperation, makes this catalytic combustion environmental protection equipment can according to the flexible selection processing path of waste gas dust content, and dust content is low when the energy -conserving, and dust content is high when high -efficient.

Description

Technical Field

[0001] This utility model belongs to the technical field of catalytic combustion equipment, specifically relating to a two-stage cyclone catalytic combustion environmental protection device. Background Technology

[0002] Catalytic combustion environmental protection equipment promotes the combustion and decomposition of pollutants through catalysts, thereby reducing pollutant emissions. It is widely used in the field of industrial waste gas treatment. Existing two-stage cyclone catalytic combustion equipment connects two cyclone towers in series with the catalytic combustion device. Before entering the catalytic combustion system, the waste gas passes through the two cyclone towers in succession, which fully separates particulate matter and solid particles in the gas. For example, a catalytic combustion environmental protection device with two-stage cyclones is disclosed in Chinese Patent Publication No. CN222849269U.

[0003] However, in actual operating conditions, the dust content of industrial waste gas varies considerably: when the dust content is extremely low, pretreatment with a cyclone tower is unnecessary to meet the requirements of subsequent catalytic combustion, and a fixed path would increase airflow resistance and energy consumption; when the dust content is moderate, a single-stage cyclone tower can achieve effective dust removal, and two-stage treatment would be redundant; only when the dust content is extremely high is a two-stage cyclone tower required for deep dust removal. However, existing equipment lacks path switching capabilities and cannot adapt to the treatment needs of waste gas with different dust contents, resulting in poor equipment flexibility and high energy consumption.

[0004] Meanwhile, the existing equipment's water-cooled box can only achieve the function of cooling high-temperature gas. During the cooling process, the gas will carry a large amount of water vapor after contacting the spray water. Direct discharge of humid gas can easily lead to problems such as condensation corrosion of surrounding equipment and mold growth in a humid environment. Utility Model Content

[0005] The purpose of this invention is to provide a two-stage cyclone catalytic combustion environmental protection device, which solves the problem that existing equipment lacks path switching function and cannot adapt to the treatment needs of waste gas with different dust contents, resulting in poor equipment flexibility and high energy consumption; at the same time, it solves the problem that the gas carrying a large amount of water vapor is directly discharged after the existing equipment is cooled by the water cooling box, which easily leads to condensation corrosion of surrounding equipment and humid and moldy environment.

[0006] The specific technical solution adopted by this utility model is as follows:

[0007] A two-stage cyclone catalytic combustion environmental protection device includes a first cyclone tower, a second cyclone tower, a fan, and a catalytic combustion chamber. The inlet of the first cyclone tower is fixedly connected to a first two-way pipe. The left end of the first two-way pipe is fixedly connected to a first valve. The left end of the first valve is fixedly connected to a first three-way pipe. The left end of the first three-way pipe is fixedly connected to an inlet pipe. The top end of the first three-way pipe is fixedly connected to a second valve. The top end of the second valve is fixedly connected to a four-way pipe. The left end of the four-way pipe is fixedly connected to a third valve. The bottom end of the third valve is fixedly connected to the outlet of the first cyclone tower. There is a second two-way pipe. The right end of the four-way pipe is fixedly connected to a fourth valve. The right end of the fourth valve is fixedly connected to a third two-way pipe at the inlet of the second cyclone tower. The outlet of the second cyclone tower is fixedly connected to a fourth two-way pipe. The top end of the fourth two-way pipe is fixedly connected to a fifth valve. The top end of the fifth valve is fixedly connected to a second three-way pipe. The left end of the second three-way pipe and the right end of the four-way pipe are both fixedly connected to a sixth valve. The right end of the second three-way pipe is fixedly connected to the inlet of the blower. The outlet of the blower and the inlet of the catalytic combustion chamber are both fixedly connected to a fifth two-way pipe.

[0008] The present invention is further configured such that the gas outlet of the catalytic combustion chamber is fixedly connected to a sixth two-way pipe, the right end of the sixth two-way pipe is fixedly connected to a chamber body, the upper surface of the chamber body is fixedly connected to a gas outlet pipe, an installation hole is provided on the back of the chamber body, a spray pipe is fixedly connected to the inner wall of the installation hole, a spray head is fixedly connected to the bottom end of the spray pipe, a drain pipe is fixedly connected to the right end of the chamber body, and a seventh valve is fixedly connected to the right end of the drain pipe.

[0009] The present invention is further configured such that the spray pipe is located above the right end of the sixth two-way pipe, and the drain pipe is located below the right end of the sixth two-way pipe.

[0010] The present invention is further configured such that a circular hole is provided on the front of the box body, an external threaded cylinder is fixedly connected to the inner wall of the circular hole, a sealing cap is threadedly connected to the inner wall of the external threaded cylinder, an activated carbon column is fixedly connected to the inner wall of the sealing cap, the surface of the activated carbon column is in contact with the inner wall of the external threaded cylinder, and a positioning ring is fixedly connected to the inner wall of the box body, the inner wall of the positioning ring is in contact with the surface of the activated carbon column.

[0011] The present invention is further configured such that a rubber ring is fitted on the surface of the external threaded cylinder, and the front and rear sides of the rubber ring are respectively attached to the back of the sealing cover and the front of the box body.

[0012] The present invention is further configured such that the activated carbon column is located above the spray pipe, and the distance between adjacent activated carbon columns is less than the diameter of the activated carbon column.

[0013] The technical effects achieved by this utility model are as follows:

[0014] This utility model's two-stage cyclone catalytic combustion environmental protection equipment, through the coordination of a first two-way pipe, a first valve, a first three-way pipe, an inlet pipe, a second valve, a four-way pipe, a third valve, a second two-way pipe, a fourth valve, a third two-way pipe, a fourth two-way pipe, a fifth valve, a second three-way pipe, a sixth valve, and a fifth two-way pipe, allows the catalytic combustion environmental protection equipment to flexibly select the treatment path according to the dust content of the exhaust gas. When the dust content of the exhaust gas is ≤5mg / m³, the equipment can effectively treat the exhaust gas. 3 At this time, a path that bypasses the first and second cyclone towers is adopted to reduce airflow resistance and lower fan energy consumption. When 5mg / m³ 3 <Dust content ≤30mg / m³ 3 At this time, a path that only passes through the second cyclone tower is adopted to simplify the process while meeting dust removal requirements. When the dust content is >30mg / m³ 3 At the same time, the path is adopted, passing through the first cyclone tower and the second cyclone tower in sequence, to achieve deep separation of particulate matter and avoid dust clogging the catalytic combustion system.

[0015] This utility model of a two-stage cyclone catalytic combustion environmental protection device uses an external threaded cylinder, a sealing cap, and a positioning ring to fix the activated carbon column inside the box. Furthermore, when the spray-cooled exhaust gas is discharged through the exhaust pipe, the activated carbon column can absorb the water vapor in the exhaust gas, avoiding the direct emission of humid gas, which can easily lead to problems such as condensation and corrosion of surrounding equipment and mold growth in a humid environment. Attached Figure Description

[0016] Figure 1 This is a front view of the structure of this utility model;

[0017] Figure 2 yes Figure 1 Sectional view at point AA;

[0018] Figure 3 yes Figure 2 Enlarged view at point B in the middle;

[0019] Figure 4 This is a front view of the box body in this utility model;

[0020] Figure 5 This is a rear view of the housing in this utility model.

[0021] The attached diagram lists the components represented by each number as follows:

[0022] 1. First cyclone tower; 2. Second cyclone tower; 3. Fan; 4. Catalytic combustion chamber; 5. First two-way pipe; 6. First valve; 7. First three-way pipe; 8. Inlet pipe; 9. Second valve; 10. Four-way pipe; 11. Third valve; 12. Second two-way pipe; 13. Fourth valve; 14. Third two-way pipe; 15. Fourth two-way pipe; 16. Fifth valve; 17. Second three-way pipe; 18. Sixth valve; 19. Fifth two-way pipe; 20. Sixth two-way pipe; 21. Chamber; 22. Outlet pipe; 23. Mounting hole; 24. Spray pipe; 25. Spray head; 26. Drain pipe; 27. Seventh valve; 28. Round hole; 29. ​​External threaded cylinder; 30. Sealing cap; 31. Activated carbon column; 32. Positioning ring; 33. Rubber ring. Detailed Implementation

[0023] To make the above-mentioned objectives, features and advantages of this utility model more apparent and understandable, the specific embodiments of this utility model will be described in detail below with reference to the accompanying drawings.

[0024] Many specific details are set forth in the following description in order to provide a full understanding of the present invention. However, the present invention may also be implemented in other ways different from those described herein. Those skilled in the art can make similar extensions without departing from the spirit of the present invention. Therefore, the present invention is not limited to the specific embodiments disclosed below.

[0025] like Figure 1 As shown, the two-stage cyclone catalytic combustion environmental protection equipment includes a first cyclone tower 1, a second cyclone tower 2, a fan 3, and a catalytic combustion chamber 4. The inlet end of the first cyclone tower 1 is fixedly connected to a first two-way pipe 5. The left end of the first two-way pipe 5 is fixedly connected to a first valve 6. The left end of the first valve 6 is fixedly connected to a first three-way pipe 7. The left end of the first three-way pipe 7 is fixedly connected to an inlet pipe 8. The top end of the first three-way pipe 7 is fixedly connected to a second valve 9. The top end of the second valve 9 is fixedly connected to a four-way pipe 10. The left end of the four-way pipe 10 is fixedly connected to a third valve 11. The bottom end of the third valve 11 and the outlet end of the first cyclone tower 1 are both fixedly connected to the second two-way pipe 5. The right end of the four-way pipe 10 is fixedly connected to the fourth valve 13. The right end of the fourth valve 13 is fixedly connected to the air inlet of the second cyclone tower 2 and the third two-way pipe 14. The air outlet of the second cyclone tower 2 is fixedly connected to the fourth two-way pipe 15. The top end of the fourth two-way pipe 15 is fixedly connected to the fifth valve 16. The top end of the fifth valve 16 is fixedly connected to the second three-way pipe 17. The left end of the second three-way pipe 17 and the right end of the four-way pipe 10 are both fixedly connected to the sixth valve 18. The right end of the second three-way pipe 17 is fixedly connected to the air inlet of the blower 3. The air outlet of the blower 3 and the air inlet of the catalytic combustion box 4 are both fixedly connected to the fifth two-way pipe 19.

[0026] It should be noted that the first valve 6 controls the connection between the first two-way pipe 5 and the first three-way pipe 7, the second valve 9 controls the connection between the first three-way pipe 7 and the four-way pipe 10, the third valve 11 controls the connection between the second two-way pipe 12 and the four-way pipe 10, the fourth valve 13 controls the connection between the four-way pipe 10 and the third two-way pipe 14, the fifth valve 16 controls the connection between the fourth two-way pipe 15 and the second three-way pipe 17, the sixth valve 18 controls the connection between the second three-way pipe 17 and the four-way pipe 10, and the fifth two-way pipe 19 connects the outlet of the blower 3 to the inlet of the catalytic combustion chamber 4.

[0027] like Figures 1 to 5 As shown, the outlet end of the catalytic combustion chamber 4 is fixedly connected to a sixth two-way pipe 20, the right end of the sixth two-way pipe 20 is fixedly connected to a chamber body 21, the upper surface of the chamber body 21 is fixedly connected to an outlet pipe 22, an installation hole 23 is opened on the back of the chamber body 21, a spray pipe 24 is fixedly connected to the inner wall of the installation hole 23, a spray head 25 is fixedly connected to the bottom end of the spray pipe 24, a drain pipe 26 is fixedly connected to the right end of the chamber body 21, and a seventh valve 27 is fixedly connected to the right end of the drain pipe 26.

[0028] A circular hole 28 is provided on the front of the box body 21. An external threaded cylinder 29 is fixedly connected to the inner wall of the circular hole 28. A sealing cap 30 is threadedly connected to the inner wall of the external threaded cylinder 29. An activated carbon column 31 is fixedly connected to the inner wall of the sealing cap 30. The surface of the activated carbon column 31 is in contact with the inner wall of the external threaded cylinder 29. A positioning ring 32 is fixedly connected to the inner wall of the box body 21. The inner wall of the positioning ring 32 is in contact with the surface of the activated carbon column 31. A rubber ring 33 is fitted on the surface of the external threaded cylinder 29. The front and rear sides of the rubber ring 33 are in contact with the back of the sealing cap 30 and the front of the box body 21, respectively.

[0029] Among them, the spray pipe 24 is located above the right end of the sixth two-way pipe 20, the drain pipe 26 is located below the right end of the sixth two-way pipe 20, the activated carbon column 31 is located above the spray pipe 24, and the distance between adjacent activated carbon columns 31 is less than the diameter of the activated carbon column 31.

[0030] It should be noted that the sixth two-way pipe 20 connects the housing 21 to the outlet of the catalytic combustion chamber 4. Cooling water sprayed from the spray head 25 can cool the exhaust gas entering the housing 21. The seventh valve 27 controls the opening and closing of the drain pipe 26. When the seventh valve 27 is opened, the waste liquid in the housing 21 is discharged through the drain pipe 26. The activated carbon column 31 can be fixed inside the housing 21 by the cooperation of the external threaded cylinder 29, the sealing cover 30, and the positioning ring 32. When the exhaust gas from the spray cooling process is discharged through the exhaust pipe 22, the activated carbon column 31 can absorb the moisture in the exhaust gas, avoiding the direct emission of humid gas which can easily lead to problems such as condensation and corrosion of surrounding equipment and mold growth in a humid environment. The rubber ring 33 can seal the connection between the sealing cover 30 and the external threaded cylinder 29. There are multiple activated carbon columns 31 inside the box 21, and the multiple activated carbon columns 31 are staggered inside the box 21, so that the exhaust gas after spray treatment can fully contact the activated carbon columns 31.

[0031] The working principle of this utility model is as follows: when the dust content of the exhaust gas is ≤5mg / m³ 3 At this time, the second valve 9 and the sixth valve 18 are opened, and the first valve 6, the third valve 11, the fourth valve 13 and the fifth valve 16 are closed. At this time, the exhaust gas enters the catalytic combustion box 4 through the inlet pipe 8, the first three-way pipe 7, the four-way pipe 10, the second three-way pipe 17, the fan 3 and the fifth two-way pipe 19 in sequence. Then, the exhaust gas is treated by catalytic combustion through the catalytic combustion box 4.

[0032] When 5mg / m 3 <Dust content ≤30mg / m³ 3 At that time, the second valve 9, the fourth valve 13, and the fifth valve 16 are opened, and the first valve 6, the third valve 11, and the sixth valve 18 are closed, so that the exhaust gas enters the second cyclone tower 2 in sequence through the inlet pipe 8, the first three-way pipe 7, the four-way pipe 10, and the third two-way pipe 14. Then, the particulate matter in the exhaust gas is separated by the second cyclone tower 2. The separated exhaust gas enters the catalytic combustion box 4 in sequence through the fourth two-way pipe 15, the second three-way pipe 17, the fan 3, and the fifth two-way pipe 19. Then, the exhaust gas is catalytically combusted by the catalytic combustion box 4.

[0033] When the dust content is >30mg / m³ 3At this time, the first valve 6, the third valve 11, the fourth valve 13 and the fifth valve 16 are opened, and the second valve 9 and the sixth valve 18 are closed, so that the exhaust gas passes through the inlet pipe 8, the first two-way pipe 5, the first cyclone tower 1, the second two-way pipe 12, the four-way pipe 10, the third two-way pipe 14 and the second cyclone tower 2 in sequence. At this time, the particulate matter in the exhaust gas is separated in sequence through the first cyclone tower 1 and the second cyclone tower 2 to achieve deep separation of particulate matter. The separated exhaust gas passes through the fourth two-way pipe 15, the second three-way pipe 17, the fan 3 and the fifth two-way pipe 19 in sequence into the catalytic combustion box 4. Then, the exhaust gas is treated by catalytic combustion in the catalytic combustion box 4.

[0034] The exhaust gas after catalytic combustion treatment enters the housing 21 through the sixth two-way pipe 20. Then, the spray pipe 24 is connected to the water supply mechanism, and the water pump of the water supply mechanism is turned on to make cooling water sprayed out through the spray head 25. At this time, the cooling water sprayed out through the spray head 25 cools down the high-temperature exhaust gas after catalytic combustion treatment. After the cooled exhaust gas comes into contact with the surface of the activated carbon column 31, the activated carbon column 31 can absorb the water vapor in the exhaust gas. Finally, the exhaust gas after moisture absorption treatment is discharged through the exhaust pipe 22.

[0035] When it is necessary to replace the activated carbon column 31, first unscrew the sealing cap 30 from the external threaded cylinder 29, then pull the activated carbon column 31 to be replaced out of the box 21, and then insert the new activated carbon column 31 into the external threaded cylinder 29 and screw the sealing cap 30 onto the external threaded cylinder 29. At this time, the activated carbon column 31 can be fixed in the box 21 by the cooperation of the external threaded cylinder 29, the sealing cap 30 and the positioning ring 32. At the same time, since multiple activated carbon columns 31 are staggered in the box 21, the waste gas after spraying can fully contact the activated carbon column 31. At the same time, when it is necessary to discharge the waste liquid generated during spraying from the box 21, the waste liquid in the box 21 can be discharged through the drain pipe 26 by opening the seventh valve 27.

[0036] The above description is merely a preferred embodiment of this utility model. It should be noted that those skilled in the art can make various improvements and modifications without departing from the principle of this utility model, and these improvements and modifications should also be considered within the scope of protection of this utility model. Structures, devices, and operating methods not specifically described or explained in this utility model, unless otherwise specified or limited, shall be implemented using conventional methods in the field.

Claims

1. A two-stage cyclone catalytic combustion environmental protection device, characterized in that: The system includes a first cyclone tower (1), a second cyclone tower (2), a fan (3), and a catalytic combustion chamber (4). The inlet of the first cyclone tower (1) is fixedly connected to a first two-way pipe (5). The left end of the first two-way pipe (5) is fixedly connected to a first valve (6). The left end of the first valve (6) is fixedly connected to a first three-way pipe (7). The left end of the first three-way pipe (7) is fixedly connected to an inlet pipe (8). The top end of the first three-way pipe (7) is fixedly connected to a second valve (9). The top end of the second valve (9) is fixedly connected to a four-way pipe (10). The left end of the four-way pipe (10) is fixedly connected to a third valve (11). The bottom end of the third valve (11) and the outlet of the first cyclone tower (1) are both fixedly connected to a second two-way pipe (12). The right end of the four-way pipe (10) is fixedly connected to a fourth valve (13). The right end of the fourth valve (13) and the air inlet of the second cyclone tower (2) are both fixedly connected to a third two-way pipe (14). The air outlet of the second cyclone tower (2) is fixedly connected to a fourth two-way pipe (15). The top end of the fourth two-way pipe (15) is fixedly connected to a fifth valve (16). The top end of the fifth valve (16) is fixedly connected to a second three-way pipe (17). The left end of the second three-way pipe (17) and the right end of the four-way pipe (10) are both fixedly connected to a sixth valve (18). The right end of the second three-way pipe (17) is fixedly connected to the air inlet of the blower (3). The air outlet of the blower (3) and the air inlet of the catalytic combustion box (4) are both fixedly connected to a fifth two-way pipe (19).

2. The two-stage cyclone catalytic combustion environmental protection device according to claim 1, characterized in that: The gas outlet of the catalytic combustion chamber (4) is fixedly connected to a sixth two-way pipe (20), the right end of the sixth two-way pipe (20) is fixedly connected to a chamber body (21), the upper surface of the chamber body (21) is fixedly connected to a gas outlet pipe (22), the back of the chamber body (21) is provided with an installation hole (23), the inner wall of the installation hole (23) is fixedly connected to a spray pipe (24), the bottom end of the spray pipe (24) is fixedly connected to a spray head (25), the right end of the chamber body (21) is fixedly connected to a drain pipe (26), and the right end of the drain pipe (26) is fixedly connected to a seventh valve (27).

3. The two-stage cyclone catalytic combustion environmental protection device according to claim 2, characterized in that: The spray pipe (24) is located above the right end of the sixth two-way pipe (20), and the drain pipe (26) is located below the right end of the sixth two-way pipe (20).

4. The two-stage cyclone catalytic combustion environmental protection device according to claim 2, characterized in that: The front of the box (21) has a circular hole (28). An external threaded cylinder (29) is fixedly connected to the inner wall of the circular hole (28). A sealing cap (30) is threadedly connected to the inner wall of the external threaded cylinder (29). An activated carbon column (31) is fixedly connected to the inner wall of the sealing cap (30). The surface of the activated carbon column (31) is in contact with the inner wall of the external threaded cylinder (29). A positioning ring (32) is fixedly connected to the inner wall of the box (21). The inner wall of the positioning ring (32) is in contact with the surface of the activated carbon column (31).

5. The two-stage cyclone catalytic combustion environmental protection device according to claim 4, characterized in that: The surface of the external threaded cylinder (29) is fitted with a rubber ring (33), and the front and rear sides of the rubber ring (33) are respectively attached to the back of the sealing cover (30) and the front of the box body (21).

6. The two-stage cyclone catalytic combustion environmental protection device according to claim 4, characterized in that: The activated carbon column (31) is located above the spray pipe (24), and the distance between adjacent activated carbon columns (31) is less than the diameter of the activated carbon column (31).

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