An oil particle capturing device for an oxidative cracking off-gas plant

Abstract

The utility model relates to waste gas treatment technical field discloses an oil dirt particle trapping device of oxidizing cracking waste gas equipment, including the bottom plate, the top of bottom plate fixedly connected with the support station, the top front side of support station is fixedly connected with the cylindrical barrel, the top of cylindrical barrel is fixedly connected with the flusher, the top rear side of cylindrical barrel is connected with the gas pipe, the rear end of gas pipe is connected with the purification cylinder, the bottom of purification cylinder and the top rear side right end of support station are fixedly connected, the inboard of cylindrical barrel is fixedly connected with high precision filter screen, the bottom of cylindrical barrel is connected with the cyclone drum. In the utility model, waste gas forms spiral downward rotating airflow along with the flow guide plate, realizes preliminary purification in the rotating process, airflow is discharged to the purification cylinder from the gas pipe, can backflush high precision filter screen to prevent oil dirt impurities from accumulating on the surface of high precision filter screen, ensures that the pore is not blocked, guarantees the gas quality after purification.

Description

Technical Field

[0001] This utility model relates to the field of waste gas treatment technology, and in particular to an oil particle capture device for an oxidative pyrolysis waste gas equipment. Background Technology

[0002] In the petrochemical industry, if the oily waste gas generated by the catalytic cracking unit of an oil refinery is not effectively treated before being emitted, the oil mist particles will form photochemical smog in the atmosphere, significantly aggravating air pollution. At the same time, the oil mist adheres to the surface of equipment, continuously corroding the equipment and severely shortening its service life. The situation is equally serious in the coal chemical industry. The high-temperature cracking gas generated during the coal-to-oil process carries a large amount of tar, oily particles, and sulfides. If directly emitted, it can easily trigger a chain of environmental problems such as acid rain and soil pollution. In recent years, environmental protection policies have become increasingly strict in regulating industrial waste gas emissions, and have made clear restrictions on the indicators of oil mist particles and non-methane total hydrocarbons in the waste gas of the petrochemical industry. If enterprises fail to meet the emission standards, they will face heavy fines or even production shutdowns and rectification. Technological breakthroughs have driven the upgrading of oil particle capture devices, prompting enterprises to actively adopt new devices to improve the waste gas treatment effect, meet environmental protection requirements, reduce equipment maintenance costs, and improve production efficiency.

[0003] The structure of an oil particle capture device consists of an air inlet, a capture unit, an oil collection and discharge system, a purified gas outlet, and a control system. Although oxidative pyrolysis technology can decompose most organic pollutants in waste gas, conventional oxidative pyrolysis equipment is difficult to effectively remove micron-sized oil mist particles when treating high-temperature industrial waste gas. These particles are discharged with the purified waste gas, and larger particles are formed during the oxidative pyrolysis process, further increasing the difficulty of treatment. Nanofiber materials, with their unique structural characteristics, can significantly improve filtration efficiency when applied to filter-type capture devices. However, when using only nanofiber materials for filtration, their small pore size makes them difficult to capture oil particles efficiently, but they are also easily clogged by oil, leading to increased gas flow resistance and affecting filtration efficiency and the overall performance of the device. Utility Model Content

[0004] To overcome the above shortcomings, this utility model provides an oil particle capture device for an oxidative pyrolysis waste gas equipment. It aims to improve the problem that the existing technology uses nanofiber materials for filtration, which have small pore sizes and can efficiently capture oil particles, but are easily clogged by oil, resulting in increased gas flow resistance and affecting filtration efficiency and the overall performance of the device.

[0005] To achieve the above objectives, the present invention adopts the following technical solution: an oil particle capture device for an oxidative pyrolysis waste gas equipment, comprising a base plate, a support platform fixedly connected to the top of the base plate, a cylindrical tube fixedly connected to the front top of the support platform, a flushing device fixedly connected to the top of the cylindrical tube, an exhaust pipe connected to the rear top of the cylindrical tube, a purification cylinder connected to the rear end of the exhaust pipe, the bottom of the purification cylinder fixedly connected to the right rear top of the support platform, a high-precision filter screen fixedly connected to the inner side of the cylindrical tube, a cyclone separator connected to the bottom of the cylindrical tube, multiple guide plates fixedly connected to the inner side of the cyclone separator, an air inlet pipe connected to the left side of the cyclone separator, an exhaust fan connected to the right side of the cyclone separator, a collection box connected to the bottom of the cyclone separator, the bottom of the collection box fixedly connected to the front top of the base plate, and a discharge mechanism provided on the top of the support platform for measuring and discharging the purified gas.

[0006] As a further description of the above technical solution:

[0007] The emission mechanism includes a support plate, the bottom of which is fixedly connected to the rear left side of the top of the support platform. A motor is fixedly connected to the top of the support plate, and a gear is fixedly connected to the output end of the motor. A toothed strip is meshed with the outer wall of the gear, and a support frame is fixedly connected to the top of the toothed strip. A cover plate is fixedly connected to the rear top of the support platform, and the outer wall of the support frame is slidably connected to the inner wall of the cover plate. The bottom right side of the cover plate engages with the top of the purification cylinder, and an observation plate is fixedly connected to the outer wall of the purification cylinder.

[0008] As a further description of the above technical solution:

[0009] A nameplate is fixedly connected to the top right side of the support platform, and an indicator sign is fixedly connected to the right side of the support platform.

[0010] As a further description of the above technical solution:

[0011] The right side of the collection box is connected to a liquid outlet pipe, and a valve is fixedly connected to the top of the liquid outlet pipe.

[0012] As a further description of the above technical solution:

[0013] A sealing ring is fixedly connected to the top center of the collection box, and the inner wall of the sealing ring is fixedly connected to the outer wall of the cyclone.

[0014] As a further description of the above technical solution:

[0015] An anti-slip pad is fixedly connected to the bottom of the base plate, and a heat dissipation plate is fixedly connected to the middle right side of the support platform.

[0016] As a further description of the above technical solution:

[0017] Multiple breathing lights are fixedly connected to the top left side of the support platform, and all of the breathing lights adopt a symmetrical design.

[0018] As a further description of the above technical solution:

[0019] A display screen is fixedly connected to the left side of the support platform, and a transparent plate is fixedly connected to the front side of the collection box.

[0020] This utility model has the following beneficial effects:

[0021] 1. In this utility model, the exhaust gas enters the cyclone through the inlet pipe. The exhaust fan generates airflow, causing the exhaust gas to form a spiral downward rotating airflow along the guide plate. During the rotation, preliminary purification is achieved. The airflow is discharged into the purification cylinder through the outlet pipe. The high-precision filter screen can be backwashed by the flushing device to prevent oil and impurities from accumulating on the surface of the high-precision filter screen, ensuring that the pores of the filter screen are not blocked, thereby maintaining its efficient interception and filtration capacity for residual oil and impurities in the airflow and ensuring the quality of the purified gas.

[0022] 2. In this utility model, a reagent is placed inside the purification cylinder. When no color change is observed through the observation plate, the motor drives the gear to rotate. The rotation of the gear causes the meshing toothed strip to move, thereby causing the support frame to disengage from the purification cylinder and discharge the purified gas. This allows for a direct judgment of whether the gas is completely purified, providing a visual basis for judging the gas purification effect and ensuring the quality of the discharged gas. Attached Figure Description

[0023] Figure 1 This is a perspective view of the front side of the base plate of the oil particle capture device for an oxidative pyrolysis waste gas equipment proposed in this utility model.

[0024] Figure 2 This is a side view of the support platform of the oil particle capture device for an oxidative pyrolysis waste gas equipment proposed in this utility model;

[0025] Figure 3 This is a diagram showing the collection box of an oil particle capture device for an oxidative pyrolysis waste gas equipment according to this utility model.

[0026] Figure 4 This is a split view of the cylindrical section of an oil particle capture device for an oxidative pyrolysis waste gas equipment proposed in this utility model;

[0027] Figure 5 This is a split view of the support frame of the oil particle capture device for an oxidative pyrolysis waste gas equipment proposed in this utility model.

[0028] Legend:

[0029] 1. Base plate; 2. Discharge mechanism; 201. Support plate; 202. Motor; 203. Gear; 204. Toothed strip; 205. Support frame; 206. Cover plate; 207. Observation plate; 3. Support platform; 4. Cylindrical tube; 5. Flushing device; 6. Air outlet pipe; 7. Purification cylinder; 8. High-precision filter screen; 9. Cyclone tube; 10. Guide plate; 11. Air inlet pipe; 12. Exhaust fan; 13. Collection box; 14. Nameplate; 15. Indicator sign; 16. Liquid outlet pipe; 17. Valve; 18. Transparent plate; 19. Sealing ring; 20. Anti-slip pad; 21. Heat sink; 22. Breathing light; 23. Display screen. Detailed Implementation

[0030] The technical solutions of the present utility model will be clearly and completely described below with reference to the accompanying drawings of the embodiments. Obviously, the described embodiments are only some embodiments of the present utility model, and not all embodiments. Based on the embodiments of the present utility model, all other embodiments obtained by those of ordinary skill in the art without creative effort are within the protection scope of the present utility model.

[0031] Please see the appendix Figure 1 Appendix Figure 3 and attached Figure 4 An embodiment of this utility model provides an oil particle capture device for an oxidative pyrolysis waste gas equipment, comprising a base plate 1, a support platform 3 fixedly connected to the top of the base plate 1, a cylindrical cylinder 4 fixedly connected to the front side of the top of the support platform 3, a flusher 5 fixedly connected to the top of the cylindrical cylinder 4, an exhaust pipe 6 connected to the rear side of the top of the cylindrical cylinder 4, a purification cylinder 7 connected to the rear end of the exhaust pipe 6, the bottom of the purification cylinder 7 fixedly connected to the right end of the rear side of the top of the support platform 3, a high-precision filter screen 8 fixedly connected to the inner side of the cylindrical cylinder 4, a cyclone 9 connected to the bottom of the cylindrical cylinder 4, multiple guide plates 10 fixedly connected to the inner side of the cyclone 9, an air inlet pipe 11 connected to the left side of the cyclone 9, an exhaust fan 12 connected to the right side of the cyclone 9, a collection box 13 connected to the bottom of the cyclone 9, the bottom of the collection box 13 fixedly connected to the front side of the top of the base plate 1, and a discharge mechanism 2 provided on the top of the support platform 3 for measuring and discharging the purified gas.

[0032] Specifically, a support platform 3 is fixedly connected to the top of the base plate 1, which increases the stability of the structure. A flusher 5 is fixedly connected to the top of the cylindrical tube 4. The flusher 5 is used to clean the filter screen regularly to ensure the long-term stable operation of the device. An exhaust pipe 6 is connected to the rear side of the top of the cylindrical tube 4. The rear end of the exhaust pipe 6 is further connected to a purification cylinder 7. The bottom of the purification cylinder 7 is fixedly connected to the right end of the rear side of the top of the support platform 3 to ensure the stability of the overall structure. A high-precision filter screen 8 is installed inside the cylindrical tube 4, which can effectively capture tiny oil particles in the exhaust gas and improve the purification effect. A cyclone 9 is connected to the bottom of the cylindrical tube 4 to achieve a pre-separation effect. Multiple guide plates 10 are fixedly connected to the inner side of the cyclone 9. These guide plates 10 can guide the airflow, optimize the capture path of oil particles, and significantly improve the capture efficiency.

[0033] Please see the appendix Figure 1 Appendix Figure 2 and attached Figure 5 The emission mechanism 2 includes a support plate 201. The bottom of the support plate 201 is fixedly connected to the rear left side of the top of the support platform 3. A motor 202 is fixedly connected to the top of the support plate 201. A gear 203 is fixedly connected to the output end of the motor 202. A toothed strip 204 is meshed with the outer wall of the gear 203. A support frame 205 is fixedly connected to the top of the toothed strip 204. A cover plate 206 is fixedly connected to the rear side of the top of the support platform 3. The outer wall of the support frame 205 is slidably connected to the inner wall of the cover plate 206. The bottom right side of the cover plate 206 is engaged with the top of the purification cylinder 7. An observation plate 207 is fixedly connected to the outer wall of the purification cylinder 7.

[0034] Specifically, the bottom of the support plate 201 is fixedly connected to the top left rear end of the support platform 3 to ensure the stability of the overall structure. The top of the support plate 201 is fixed with a motor 202, and the output end of the motor 202 is fixedly connected to a gear 203. The outer wall of the gear 203 meshes with the toothed strip 204 to form a transmission mechanism. The outer wall of the support frame 205 and the inner wall of the cover plate 206 are slidably connected, so that the cover plate 206 can be adjusted. When the bottom right part of the cover plate 206 descends to the top of the purification cylinder 7, it can be connected by a snap-fit ​​method to ensure the tightness and reliability of the connection.

[0035] Please see the appendix Figure 1 Appendix Figure 2 and attached Figure 3 The right side of the collection box 13 is connected to the liquid outlet pipe 16, and the top of the liquid outlet pipe 16 is fixedly connected to the valve 17. The left side of the support platform 3 is fixedly connected to the display screen 23. The front side of the collection box 13 is fixedly connected to the transparent plate 18. The top center of the collection box 13 is fixedly connected to the sealing ring 19, and the inner wall of the sealing ring 19 is fixedly connected to the outer wall of the cyclone 9.

[0036] Specifically, a liquid outlet pipe 16 is connected to the right side of the collection tank 13 to discharge the oily liquid collected in the tank. In order to control the flow of liquid, a valve 17 is fixedly connected to the top of the liquid outlet pipe 16. The liquid flow rate can be adjusted through the valve 17. A transparent plate 18 is fixedly connected to the front of the collection tank 13 to facilitate observation of the situation inside the tank. The sealing ring 19 is used to ensure the sealing of the connection parts.

[0037] Please see the appendix Figure 1 Appendix Figure 2 and attached Figure 3 The bottom of the base plate 1 is fixedly connected to an anti-slip pad 20, the middle right side of the support platform 3 is fixedly connected to a heat sink 21, the top right side of the support platform 3 is fixedly connected to a nameplate 14, the right side of the support platform 3 is fixedly connected to an indicator sign 15, and the top left side of the support platform 3 is fixedly connected to multiple breathing lights 22, all of which adopt a symmetrical design.

[0038] Specifically, the anti-slip pad 20 can effectively prevent the equipment from sliding during use and ensure overall stability. The heat dissipation plate 21 is used to dissipate the heat generated during the operation of the equipment and ensure normal operation of the equipment. A nameplate 14 is fixedly connected to the top right side of the support platform 3. The nameplate 14 is engraved with relevant information about the equipment, which makes it easy to identify and understand the equipment status.

[0039] Working principle: Exhaust gas enters the cyclone 9 through the inlet pipe 11. The exhaust fan 12 generates airflow, causing the exhaust gas to form a spiral downward rotating airflow along the guide plate 10. During the rotation, centrifugal force throws oil and impurities against the inner wall of the cyclone 9 and slides into the collection box 13 for collection, achieving preliminary purification. After the airflow reaches the bottom of the cyclone 9, it spirals upward and passes through the high-precision filter 8 for further purification. The purified gas is discharged into the purification cylinder 7 through the outlet pipe 6. The high-precision filter 8 is backwashed regularly by the flusher 5 to prevent clogging and prevent oil and impurities from accumulating on the surface of the high-precision filter 8, ensuring that the pores of the filter are not blocked, thereby maintaining its efficient interception and filtration capacity for residual oil and impurities in the airflow and ensuring the quality of the purified gas.

[0040] The reagent is placed in the purification cylinder 7. When no color change is observed through the observation plate 207, the motor 202 drives the gear 203 to rotate. The rotation of the gear 203 causes the meshing toothed strip 204 to move, thereby causing the support frame 205 to disengage from the purification cylinder 7 and discharge the purified gas. This allows for a direct judgment of whether the gas is completely purified, providing a visual basis for judging the gas purification effect and ensuring the quality of the discharged gas.

[0041] Finally, it should be noted that the above description is only a preferred embodiment of the present utility model and is not intended to limit the present utility model. Although the present utility model has been described in detail with reference to the foregoing embodiments, those skilled in the art can still modify the technical solutions described in the foregoing embodiments or make equivalent substitutions for some of the technical features. Any modifications, equivalent substitutions, improvements, etc., made within the spirit and principles of the present utility model should be included within the protection scope of the present utility model.

Claims

1. An oil particle capture device for an oxidative pyrolysis waste gas equipment, comprising a base plate (1), characterized in that: A support platform (3) is fixedly connected to the top of the base plate (1). A cylindrical tube (4) is fixedly connected to the front top of the support platform (3). A flushing device (5) is fixedly connected to the top of the cylindrical tube (4). An air outlet pipe (6) is connected to the rear top of the cylindrical tube (4). A purification cylinder (7) is connected to the rear end of the air outlet pipe (6). The bottom of the purification cylinder (7) is fixedly connected to the right rear end of the top of the support platform (3). A high-precision filter screen (8) is fixedly connected to the inner side of the cylindrical tube (4). The bottom of the cyclone is connected to a cyclone tube (9), and multiple guide plates (10) are fixedly connected to the inner side of the cyclone tube (9). An air inlet pipe (11) is connected to the left side of the cyclone tube (9), and an exhaust fan (12) is connected to the right side of the cyclone tube (9). A collection box (13) is connected to the bottom of the cyclone tube (9), and the bottom of the collection box (13) is fixedly connected to the top front side of the base plate (1). A discharge mechanism (2) is provided on the top of the support platform (3), and the discharge mechanism (2) is used to measure and discharge the purified gas.

2. The oil particle capture device for an oxidative pyrolysis waste gas equipment according to claim 1, characterized in that: The emission mechanism (2) includes a support plate (201), the bottom of which is fixedly connected to the rear left side of the top of the support platform (3). A motor (202) is fixedly connected to the top of the support plate (201), and a gear (203) is fixedly connected to the output end of the motor (202). A toothed strip (204) is meshed with the outer wall of the gear (203). A support frame (205) is fixedly connected to the top of the toothed strip (204). A cover plate (206) is fixedly connected to the rear side of the top of the support platform (3). The outer wall of the support frame (205) is slidably connected to the inner wall of the cover plate (206). The bottom right side of the cover plate (206) is engaged with the top of the purification cylinder (7). An observation plate (207) is fixedly connected to the outer wall of the purification cylinder (7).

3. The oil particle capture device for an oxidative pyrolysis waste gas equipment according to claim 1, characterized in that: A nameplate (14) is fixedly connected to the top right side of the support platform (3), and an indicator plate (15) is fixedly connected to the right side of the support platform (3).

4. The oil particle capture device for an oxidative pyrolysis waste gas equipment according to claim 1, characterized in that: The right side of the collection box (13) is connected to an outlet pipe (16), and a valve (17) is fixedly connected to the top of the outlet pipe (16).

5. The oil particle capture device for an oxidative pyrolysis waste gas equipment according to claim 1, characterized in that: A sealing ring (19) is fixedly connected to the top center of the collection box (13), and the inner wall of the sealing ring (19) is fixedly connected to the outer wall of the cyclone (9).

6. The oil particle capture device for an oxidative pyrolysis waste gas equipment according to claim 1, characterized in that: The bottom of the base plate (1) is fixedly connected to an anti-slip pad (20), and the right middle part of the support platform (3) is fixedly connected to a heat dissipation plate (21).

7. The oil particle capture device for an oxidative pyrolysis waste gas equipment according to claim 1, characterized in that: Multiple breathing lights (22) are fixedly connected to the top left side of the support platform (3), and the multiple breathing lights (22) are all designed symmetrically.

8. The oil particle capture device for an oxidative pyrolysis waste gas equipment according to claim 1, characterized in that: A display screen (23) is fixedly connected to the left side of the support platform (3), and a transparent plate (18) is fixedly connected to the front side of the collection box (13).

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