A catalytic cracking reactor for industrial waste gas treatment

Abstract

This invention discloses a catalytic cracking reactor for industrial waste gas treatment, relating to the field of flue gas treatment technology. It includes a furnace body and a low-resistivity separator. The invention utilizes a separation disc to block dust and oil droplets accumulating at the outer edge of the airflow, achieving secondary capture and separation of oil contaminants. Simultaneously, internal and external deswirl plates rectify and deswirl the airflow in different areas, weakening the rotational momentum and correcting the flow direction before the airflow enters the leveling chamber, resulting in a more stable and uniform fluid. By incorporating deflecting plates in the swirl separation component and using hollow separation discs in the edge separation component, the device forms a multi-stage, continuous, and open waste gas flow channel, ensuring good fluidity of the waste gas throughout the separation process. The combined effect of these two methods enables gradual, stratified, and open separation of oil contaminants in the waste gas, improving impurity removal efficiency and effectively preventing airflow stagnation caused by channel contraction or local blockage.

Description

Technical Field

[0001] This invention relates to the field of flue gas treatment technology, specifically a catalytic cracking reaction device for industrial waste gas treatment. Background Technology

[0002] With the increasing complexity of flue gas compositions emitted from various industrial processes, traditional treatment methods often suffer from insufficient reaction efficiency, incomplete treatment, or poor operational stability when dealing with waste gases containing multiple organic components, oil mist impurities, and recalcitrant substances. Catalytic cracking devices, under specific reaction conditions, catalytically activate and decompose complex compounds in waste gases, gradually transforming large molecules or difficult-to-treat components into more easily treated products, thereby providing a more favorable reaction environment for subsequent purification.

[0003] Existing industrial waste gas catalytic cracking units generally face the problem of insufficient oil separation and removal. Residual oil in the waste gas easily coats the catalyst surface after entering the reaction zone, leading to decreased activity and weakened catalytic cracking reaction efficiency. Although some reaction units perform secondary separation treatment of waste gas before the reaction, traditional filter-based separation methods cause oil to adhere and accumulate on the filter screen, leading to localized blockages, stagnant and turbulent airflow, and affecting overall reaction efficiency. Furthermore, under long-term operating conditions, traditional separation methods lack convenient and effective cleaning methods, making it difficult to meet the requirements of continuous and stable operation in industrial settings. Summary of the Invention

[0004] The purpose of this invention is to provide a catalytic cracking reaction device for industrial waste gas treatment, so as to solve the problems raised in the prior art.

[0005] To achieve the above objectives, the present invention provides the following technical solution: a catalytic cracking reaction device for industrial waste gas treatment, comprising a furnace body, a heating module disposed inside the furnace body, a catalytic module disposed inside the furnace body, a heat exchange module installed inside the furnace body, and a low-resistance separator installed on the gas inlet end of the furnace body; The low-resistance separator includes a classifying tube connected to the air inlet of the furnace body. A swirl-starting separation component is rotatably installed inside the classifying tube. A first driver is installed on the classifying tube and engages with the swirl-starting separation component. An edge separation component is rotatably installed inside the classifying tube. A second driver is installed on the classifying tube and engages with the classifying tube. The edge separation component is located at one end close to the furnace body.

[0006] The furnace body is connected to a control cabinet, which contains a control system for controlling the entire device.

[0007] After treatment, the waste gas enters the furnace and is first heated to the reaction temperature in the heating module, so that the complex organic matter and some high molecular components in the waste gas are in an energy state that is easy to decompose and break bonds. Then the gas flow enters the catalytic module, where cracking, degradation and oxidation reactions occur on the catalyst surface. Large molecules or difficult-to-treat impurities are gradually decomposed and eventually transformed into stable small molecule products, thereby achieving the purpose of catalytic cracking and deep purification of industrial waste gas. The high-temperature purified gas after the reaction completes energy recovery in the heat exchange module.

[0008] Furthermore, the swirl separation assembly includes a gear ring and a thermal cleaner. The gear ring is rotatably installed inside the grading tube, and several swirl plates are rotatably installed on the gear ring. An electric rotating ring is installed on the gear ring, and the electric rotating ring meshes with the swirl plates for transmission. The thermal cleaner is installed inside the grading tube, close to the axis of the swirl plates. One end of the thermal cleaner passes through the grading tube and is connected to a suction device. The gear ring meshes with the first driver for transmission.

[0009] Furthermore, the edge separation assembly includes a separation disc, which is rotatably installed inside the grading tube. The separation disc meshes with the second driver for transmission. The outer edge of the separation disc is provided with several secondary filter holes. A flanged isolation ring is installed on one side of the separation disc, and several external anti-swirl plates are installed on the other side of the separation disc. The external anti-swirl plates are located at the positions of the secondary filter holes. Several internal anti-swirl plates are also installed on the side of the separation disc where the external anti-swirl plates are installed.

[0010] As the swirling airflow approaches the edge separation assembly, dust and oil droplets accumulating at the outer edge of the airflow due to centrifugal force are blocked and intercepted by the outer edge of the separation disc, achieving isolation of dust and oil droplets. Meanwhile, the gaseous components in the exhaust gas pass through the secondary filter holes set on the outer edge of the separation disc. The outer airflow passing through the secondary filter holes then undergoes rectification and deswirl treatment by several outer deswirl plates, weakening its rotational momentum and gradually correcting its flow direction. The cleaner exhaust gas in the inner ring of the airflow is directly rectified and deswirl-free by the inner deswirl plates before entering the leveling chamber. Finally, the inner and outer ring airflows, after deswirl treatment, converge into the furnace body in a stable and uniform state within the leveling chamber. The blocked dust and oil droplets finally fall along the annular groove and flow into the drain outlet. During maintenance, the dust and oil droplets are discharged by opening the drain outlet.

[0011] The swirl separation assembly has several deflected plates that provide an open flow space for the exhaust gas; the separation disk on the edge separation assembly has a hollow structure in the middle, which also provides an open flow space for the exhaust gas; the swirl separation assembly and the edge separation assembly work together to achieve multi-stage open separation of oil in the exhaust gas, ensuring the flow of the exhaust gas and avoiding the stagnation of the exhaust gas during separation and treatment, which would reduce the efficiency of the reaction device.

[0012] Furthermore, the edge separation assembly also includes a self-heating cleaning plate, which is installed at the bottom of the grading tube. The flanged isolation ring and the separation disc form an annular groove, and the self-heating cleaning plate is located at the bottom of the annular groove. The shape of the self-heating cleaning plate matches the cross-sectional shape of the annular groove, and an electric heating wire is provided inside the self-heating cleaning plate.

[0013] The self-heating cleaning pad's shape matches the cross-sectional shape of the annular groove, allowing it to fit snugly into the bottom of the groove for seamless scraping of impurities and grease. An electric heating wire heats the cleaning pad, melting away any remaining grease.

[0014] During maintenance, the control system simultaneously activates the second motor and the electric heating wire inside the self-heating cleaning plate. The output shaft of the second motor drives the second gear to rotate, and the second gear drives the entire separation disc to rotate through the rotating teeth. This causes the self-heating cleaning plate to continuously melt and scrape away the oil stains on the outer edge of the separation disc. The oil stains that have seeped into the secondary filter holes are melted and then centrifugally thrown out with the rotation, finally falling into the drain port, thus completing the cleaning and maintenance of the outer edge of the separation disc.

[0015] Furthermore, the rotating plate includes a plate body with several primary filter holes. A rotating shaft is installed at the central axis of the plate body. The rotating shaft is rotatably mounted on a gear ring. A deflection gear is installed at one end of the rotating shaft. Several gear grooves are provided on the gear ring. The deflection gear is located in the gear grooves. Several adjusting teeth are provided on the electric rotating ring. The adjusting teeth mesh with the deflection gear for transmission. The heat cleaner is located close to the central axis of the plate body.

[0016] The electric rotating ring can rotate electrically on the gear ring. The control system controls the rotation of the electric rotating ring, which in turn drives several deflecting gears to rotate synchronously through the adjusting teeth on it. The deflecting gears then drive the plate to deflect around the central axis through the rotating shaft. In the working scenario, the control system controls several deflecting plates to deflect and maintain a preset angle through the electric rotating ring. The several deflecting plates form a rotating guide structure. When the exhaust gas passes through the rotating guide structure, it is guided into a forward rotating airflow under the action of several equally angled deflecting plates.

[0017] After entering the device, the industrial waste gas first enters the classifier tube, then passes through the swirl separation assembly. Some of the waste gas passes directly through the plate, and the gaseous components in the waste gas pass through the primary filter holes on the plate, while the dust and oil droplets mixed in the waste gas are blocked and retained on the plate. The other part of the waste gas that does not pass through the primary filter holes flows along the inclined surface of the plate, forming a rotating forward airflow. The centrifugal force of the rotation causes the dust and oil droplets in the waste gas to be thrown to the edge of the airflow. Then the swirling airflow flows to the edge separation assembly in the swirling chamber.

[0018] Furthermore, the heat cleaner includes an extraction component, a rigid tube connected to the extraction component, several suction grids on the extraction component, and a scraper on the extraction component. The scraper is located close to the axis of the plate. The rigid tube is installed inside the classifier tube, one end of the rigid tube passes through the classifier tube and is equipped with a suction device, and an electric heating wire is installed inside the scraper.

[0019] The rigid tube, made of a rigid material, supports the vacuum unit. Because the scraper is positioned close to the plate's axis, it maintains contact with the plate surface as the plate rotates around its central axis. An electric heating wire heats the scraper, facilitating the melting of oil stains. The suction device is used to create a vacuum in the vacuum unit during maintenance, generating negative pressure suction.

[0020] When the device requires maintenance after prolonged operation, the control system uses an electric rotating ring to adjust the deflection angle of the rotating plates, so that the rotating plates are laid flat and several rotating plates are on the same plane. Then, the control system simultaneously starts the first motor, the suction device, and the electric heating wire in the scraper. The output shaft of the first motor drives the first gear to rotate, the first gear drives the gear ring to rotate, and the gear ring drives several rotating plates to rotate. The electric heating wire in the scraper heats the scraper. The rotating plate surface is in continuous contact with the heated scraper. The scraper melts and removes the oil on the plate surface. The oil that has seeped into the primary filter pores is melted and centrifuged out. At the same time, the vacuum device under negative pressure sucks away the nearby oil, thereby achieving the cleaning and maintenance of the rotating separation component.

[0021] Furthermore, the grading tube is equipped with a swirling chamber and a leveling chamber, respectively. The swirling chamber is located between the swirling separation component and the edge separation component, and the leveling chamber is located between the edge separation component and the furnace body.

[0022] The bottom of the grading tube is equipped with a drain outlet, which is set near the swirl separation component and the edge separation component according to actual needs, to collect the isolated falling dust and oil mist droplets.

[0023] Furthermore, the first driver includes a first motor, which is mounted on the grader tube, and a first gear is mounted on the output shaft of the first motor, which meshes with a gear ring for transmission.

[0024] Furthermore, the second drive includes a second motor, a second gear is mounted on the output shaft of the second motor, and a plurality of rotating teeth are provided on the separation disc. The second gear engages with the separation disc through the rotating teeth for transmission, and the second motor is mounted on the grading tube.

[0025] Compared with the prior art, the beneficial effects of the present invention are: 1. The swirl separation component allows a portion of the light gas components to pass directly through the primary filter holes and quickly complete the primary purification and separation; the other portion forms a rotating and propelling airflow along the inclined plate, and the centrifugal force generated by the rotation actively throws dust and oil mist droplets to the outer edge of the airflow, so that impurities are pre-aggregated and separated from the main airflow before entering the subsequent channels.

[0026] 2. The separation disc blocks the dust and oil droplets that gather at the outer edge of the airflow, achieving two-stage capture and separation of oil. At the same time, the inner and outer deswirl plates rectify and deswirl the airflow in different areas, so that the rotational momentum of the airflow is weakened and the flow direction is corrected before entering the leveling chamber, thereby obtaining a more stable and uniform fluid.

[0027] 3. By setting deflection plates in the swirl separation assembly and using hollow separation discs in the edge separation assembly, the device forms a multi-stage, continuous and open waste gas flow channel, ensuring that the waste gas maintains good flow during the separation process. The two work together to achieve gradual and layered open separation of oil in the waste gas, which not only improves the impurity stripping effect but also effectively avoids airflow stagnation caused by channel contraction or local blockage, thereby preventing a decrease in the processing efficiency of the reaction device.

[0028] 4. The adjustable deflection angle of the swirl plate structure is cleaned by an electrically heated scraper and a suction component. This achieves the combined effect of melting oil, scraping off with a scraper, centrifugal oil removal, and negative pressure suction, so that the oil stains that have seeped into the plate surface and the primary filter pores are efficiently removed, achieving deep cleaning of the swirl separation component.

[0029] 5. The separation disc is rotated as a whole by the second motor, and the heating and scraping function of the self-heating cleaning plate is used to continuously peel off the oil stains accumulated on the outer edge of the separation disc; the oil stains that have penetrated into the secondary filter holes are melted under the action of heating and thrown out by centrifugal force, and finally fall into the drain port, realizing the synchronous cleaning of the oil stains on the outer edge and inside the holes. Attached Figure Description

[0030] Figure 1 This is an overall perspective view of the catalytic cracking reactor of the present invention; Figure 2 This is a perspective view of the low-resistance separator of the present invention; Figure 3 The three-dimensional representation of the spin-separation assembly of the present invention Figure 1 ; Figure 4 The three-dimensional representation of the spin-separation assembly of the present invention Figure 2 ; Figure 5 For the present invention Figure 4 A magnified view of a portion of region A in the middle; Figure 6This is a perspective view of the rotating plate of the present invention; Figure 7 This is a perspective view of the thermal cleaner of the present invention; Figure 8 The three-dimensional edge separation component of the present invention Figure 1 ; Figure 9 For the present invention Figure 8 A magnified view of a portion of region B in the middle; Figure 10 The three-dimensional edge separation component of the present invention Figure 2 .

[0031] In the diagram: 1. Furnace body; 2. Low-resistance separator; 3. Classification tube; 4. First actuator; 5. Second actuator; 6. Swirling separation assembly; 7. Edge separation assembly; 61. Gear ring; 62. Swirling plate; 63. Heat cleaner; 64. Electric rotating ring; 611. Gear groove; 621. Plate; 622. Primary filter hole; 623. Rotating shaft; 624. Deflecting gear; 641. Adjusting gear; 41. First gear; 51. Second gear; 31. Swirling chamber; 32. Leveling chamber; 631. Air extraction component; 632. Rigid pipe; 633. Scraper; 634. Suction grid; 71. Separation disc; 72. Rotating gear; 73. Secondary filter hole; 74. Flanged isolation ring; 75. Outer anti-swirl plate; 76. Inner anti-swirl plate; 77. Self-heating cleaning plate; 741. Annular groove. Detailed Implementation

[0032] The technical solutions of the embodiments of the present invention will be clearly and completely described below with reference to the accompanying drawings. Obviously, the described embodiments are only some embodiments of the present invention, and not all embodiments. Based on the embodiments of the present invention, all other embodiments obtained by those skilled in the art without creative effort are within the scope of protection of the present invention.

[0033] like Figures 1-10 As shown, the present invention provides a technical solution for a catalytic cracking reaction device for industrial waste gas treatment: including a furnace body 1, a heating module inside the furnace body 1, a catalytic module inside the furnace body 1, a heat exchange module installed inside the furnace body 1, and a low-resistance separator 2 installed on the gas inlet end of the furnace body 1. The low-resistance separator 2 includes a classifying tube 3, which is connected to the air inlet end of the furnace body 1. A swirl-starting separation component 6 is rotatably installed inside the classifying tube 3. A first driver 4 is installed on the classifying tube 3, and the first driver 4 engages with the swirl-starting separation component 6 for transmission. An edge separation component 7 is rotatably installed inside the classifying tube 3. A second driver 5 is installed on the classifying tube 3, and the second driver 5 engages with the classifying tube 3 for transmission. The edge separation component 7 is located at one end close to the furnace body 1.

[0034] The furnace body 1 is connected to a control cabinet, which contains a control system for controlling the entire device.

[0035] The grading tube 3 is provided with a swirling chamber 31 and a leveling chamber 32. The swirling chamber 31 is located between the swirling separation component 6 and the edge separation component 7, and the leveling chamber 32 is located between the edge separation component 7 and the furnace body 1.

[0036] The bottom of the grading tube 3 is equipped with a drain outlet, which is set near the swirl separation component 6 and the edge separation component 7 according to actual needs, to collect the isolated falling dust and oil mist droplets.

[0037] The swirl separation assembly 6 includes a gear ring 61 and a thermal cleaner 63. The gear ring 61 is rotatably mounted inside the grading tube 3. Several swirl-starting plates 62 are rotatably mounted on the gear ring 61. An electric rotating ring 64 is mounted on the gear ring 61. The electric rotating ring 64 meshes with the swirl-starting plates 62 for transmission. The thermal cleaner 63 is installed inside the grading tube 3. The thermal cleaner 63 is located close to the axial position of the swirl-starting plates 62. One end of the thermal cleaner 63 passes through the grading tube 3 and is connected to a suction device. The gear ring 61 meshes with the first driver 4 for transmission.

[0038] The swirl plate 62 includes a plate body 621, on which a plurality of primary filter holes 622 are provided. A rotating shaft 623 is installed at the central axis of the plate body 621. The rotating shaft 623 is rotatably mounted on a gear ring 61. A deflecting gear 624 is installed at one end of the rotating shaft 623. A plurality of gear grooves 611 are provided on the gear ring 61. The deflecting gear 624 is located in the gear grooves 611. A plurality of adjusting teeth 641 are provided on the electric rotating ring 64. The adjusting teeth 641 mesh with the deflecting gear 624 for transmission. The heat cleaner 63 is located close to the central axis of the plate body 621.

[0039] The electric rotating ring 64 can rotate electrically on the gear ring 61. The control system controls the rotation of the electric rotating ring 64, which in turn drives several deflection gears 624 to rotate synchronously through the adjusting teeth 641 on it. The deflection gears 624 then drive the plate body 621 to deflect around the central axis through the rotating shaft 623. In the working scenario, the control system controls several swirl plates 62 to deflect and maintain a preset angle through the electric rotating ring 64. The several deflected swirl plates 62 form a rotation guide structure. When the exhaust gas passes through the rotation guide structure, it is guided into a forward rotating airflow under the action of several equally angled deflection plates 621.

[0040] The heat cleaner 63 includes an exhaust component 631, a rigid tube 632 connected to the exhaust component 631, a plurality of suction grids 634 provided on the exhaust component 631, a scraper 633 provided on the exhaust component 631, the scraper 633 being close to the axial position of the plate body 621, the rigid tube 632 being installed inside the classifier tube 3, one end of the rigid tube 632 penetrating through the classifier tube 3 and being equipped with a suction device, and an electric heating wire being provided inside the scraper 633.

[0041] The rigid tube 632, made of a rigid material, supports the vacuum component 631. Because the scraper 633 is positioned close to the axis of the plate 621, it maintains contact with the surface of the plate 621 as the plate 621 rotates around its central axis. An electric heating wire heats the scraper 633, facilitating the melting of oil stains. The suction device is used to create a vacuum in the vacuum component 631 during maintenance, generating negative pressure suction.

[0042] The first driver 4 includes a first motor, which is mounted on the grader tube 3. A first gear 41 is mounted on the output shaft of the first motor, and the first gear 41 meshes with the gear ring 61 for transmission.

[0043] The edge separation assembly 7 includes a separation disk 71, which is rotatably installed inside the grading tube 3. The separation disk 71 is engaged with the second driver 5 for transmission. The outer edge of the separation disk 71 is provided with a number of secondary filter holes 73. A flanged isolation ring 74 is installed on one side of the separation disk 71, and a number of outer anti-swirl plates 75 are installed on the other side of the separation disk 71. The outer anti-swirl plates 75 are located at the positions of the secondary filter holes 73. A number of inner anti-swirl plates 76 are also installed on the side of the separation disk 71 where the outer anti-swirl plates 75 are installed.

[0044] The edge separation assembly 7 also includes a self-heating cleaning plate 77, which is installed at the bottom of the grader tube 3. The flanged isolation ring 74 and the separation disc 71 form an annular groove 741. The self-heating cleaning plate 77 is located at the bottom of the annular groove 741. The shape of the self-heating cleaning plate 77 matches the cross-sectional shape of the annular groove 741. An electric heating wire is provided inside the self-heating cleaning plate 77.

[0045] The self-heating cleaning pad 77 is shaped to match the cross-sectional shape of the annular groove 741, allowing the self-heating cleaning pad 77 to fit tightly into the bottom of the annular groove 741, facilitating seamless scraping of impurities and oil stains within the annular groove 741. An electric heating wire is used to heat the self-heating cleaning pad 77, facilitating the melting of oil stains.

[0046] The second driver 5 includes a second motor, a second gear 51 is mounted on the output shaft of the second motor, and a plurality of rotating teeth 72 are provided on the separation disk 71. The second gear 51 is driven by meshing with the separation disk 71 through the rotating teeth 72. The second motor is mounted on the grading tube 3.

[0047] The working principle of this invention is as follows: After entering the device, the industrial waste gas first enters the classifier tube 3, and then passes through the swirl separation component 6. Part of the waste gas passes directly through the plate 621. The gas components in the waste gas pass through the primary filter holes 622 on the plate 621, while the dust and oil droplets mixed in the waste gas are blocked and retained on the plate 621. The other part of the waste gas that does not pass through the primary filter holes 622 flows along the inclined surface of the plate 621, forming a rotating forward airflow. The centrifugal force of the rotation causes the dust and oil droplets in the waste gas to be thrown to the edge of the airflow. Then the swirling airflow flows to the edge separation component 7 in the swirling cavity 31.

[0048] When the swirling airflow flows towards the edge separation component 7, the dust and oil mist droplets that accumulate at the outer edge of the airflow due to centrifugal force are blocked and intercepted by the outer edge of the separation disk 71, thus isolating the dust and oil mist droplets. Meanwhile, the gas components in the exhaust gas pass through the secondary filter holes 73 set on the outer edge of the separation disk 71. The outer edge airflow passing through the secondary filter holes 73 then undergoes rectification and deswirl treatment by several outer deswirl plates 75, weakening its rotational momentum and gradually correcting its flow direction. The cleaner exhaust gas in the inner circle of the airflow is directly rectified and deswirl-eliminating by the inner deswirl plate 76 before entering the leveling chamber 32. Finally, the inner and outer circle airflows, after deswirl treatment, converge into the furnace body 1 in a stable and uniform state within the leveling chamber 32. The blocked dust and oil mist droplets finally fall along the annular groove 741 and flow into the drain port. During maintenance, the dust and oil mist droplets are discharged by opening the drain port.

[0049] The swirl separation assembly 6 has several deflected plates 621 that provide an open flow space for the exhaust gas; the separation disk 71 on the edge separation assembly 7 has a hollow structure in the middle, which also provides an open flow space for the exhaust gas; the swirl separation assembly 6 and the edge separation assembly 7 work together to achieve multi-stage open separation of oil in the exhaust gas, ensuring the flow of the exhaust gas and avoiding the stagnation of the exhaust gas during separation and treatment, which would reduce the efficiency of the reaction device.

[0050] After treatment, the waste gas enters furnace 1 and is first heated to the reaction temperature in the heating module, so that the complex organic matter and some high molecular components in the waste gas are in an energy state that is easy to decompose and break bonds. Then the gas flow enters the catalytic module, where cracking, degradation and oxidation reactions occur on the catalyst surface. Large molecules or difficult-to-treat impurities are gradually decomposed and eventually transformed into stable small molecule products, thereby achieving the purpose of catalytic cracking and deep purification of industrial waste gas. The high-temperature purified gas after the reaction completes energy recovery in the heat exchange module.

[0051] When the device requires maintenance after long-term operation, the control system uses the electric rotating ring 64 to adjust the deflection angle of the swirl plate 62, so that the swirl plate 62 is laid flat and several swirl plates 62 are on the same plane. Then, the control system simultaneously starts the first motor, the suction device and the electric heating wire in the scraper 633. The output shaft of the first motor drives the first gear 41 to rotate, the first gear 41 drives the gear ring 61 to rotate, the gear ring 61 drives several swirl plates 62 to rotate, and the electric heating wire in the scraper 633 heats the scraper 633. The surface of the rotating plate 621 is in continuous contact with the heated scraper 633. The scraper 633 melts and scrapes off the oil on the surface of the plate 621. The oil that has seeped into the primary filter pores 622 is melted and centrifuged out. At the same time, the vacuum device 631 in negative pressure state sucks away the nearby oil, thereby achieving the cleaning and maintenance of the swirl separation component 6.

[0052] During maintenance, the control system simultaneously activates the second motor and the electric heating wire inside the self-heating cleaning plate 77. The output shaft of the second motor drives the second gear 51 to rotate, and the second gear 51 drives the entire separation disc 71 to rotate through the rotating teeth 72. This causes the self-heating cleaning plate 77 to continuously melt and scrape away the oil stains on the outer edge of the separation disc 71. The oil stains that have seeped into the secondary filter holes 73 are melted and then centrifugally thrown out with the rotation, finally falling into the drain port, thus completing the cleaning and maintenance of the outer edge of the separation disc 71.

[0053] It will be apparent to those skilled in the art that the present invention is not limited to the details of the exemplary embodiments described above, and that the invention can be implemented in other specific forms without departing from its spirit or essential characteristics. Therefore, the embodiments should be considered in all respects as exemplary and non-limiting, and the scope of the invention is defined by the appended claims rather than the foregoing description. Thus, all variations falling within the meaning and scope of equivalents of the claims are intended to be included within the present invention. No reference numerals in the claims should be construed as limiting the scope of the claims.

Claims

1. A catalytic cracking reaction device for industrial waste gas treatment, comprising a furnace body (1), wherein a heating module is provided inside the furnace body (1), a catalytic module is provided inside the furnace body (1), and a heat exchange module is installed inside the furnace body (1), characterized in that: A low-resistance separator (2) is installed on the air inlet end of the furnace body (1); The low-resistance separator (2) includes a classifying tube (3), which is connected to the air inlet of the furnace body (1). A swirl-starting separation component (6) is rotatably installed inside the classifying tube (3). A first driver (4) is installed on the classifying tube (3), and the first driver (4) meshes with the swirl-starting separation component (6). An edge separation component (7) is rotatably installed inside the classifying tube (3). A second driver (5) is installed on the classifying tube (3), and the second driver (5) meshes with the classifying tube (3). The edge separation component (7) is located at one end close to the furnace body (1). The swirl separation assembly (6) includes a gear ring (61) and a heat cleaner (63). The gear ring (61) is rotatably installed inside the grading tube (3). Several swirl plates (62) are rotatably installed on the gear ring (61). An electric rotating ring (64) is installed on the gear ring (61). The electric rotating ring (64) meshes with the swirl plates (62) for transmission. The heat cleaner (63) is installed inside the grading tube (3). The heat cleaner (63) is located close to the axial position of the swirl plates (62). One end of the heat cleaner (63) passes through the grading tube (3) and is connected to a suction device. The gear ring (61) meshes with the first driver (4) for transmission. The rotating plate (62) includes a plate body (621), which has a plurality of primary filter holes (622). A rotating shaft (623) is installed at the central axis of the plate body (621). The rotating shaft (623) is rotatably mounted on a gear ring (61). A deflection gear (624) is installed at one end of the rotating shaft (623). The gear ring (61) has a plurality of gear grooves (611). The deflection gear (624) is located in the gear grooves (611). The electric rotating ring (64) has a plurality of adjusting teeth (641). The adjusting teeth (641) mesh with the deflection gear (624) for transmission. The heat cleaner (63) is located close to the axis of the plate body (621).

2. The catalytic cracking reaction device for industrial waste gas treatment according to claim 1, characterized in that: The edge separation assembly (7) includes a separation disk (71), which is rotatably installed inside the grading tube (3). The separation disk (71) is engaged with the second driver (5) for transmission. The outer edge of the separation disk (71) is provided with several secondary filter holes (73). A flanged isolation ring (74) is installed on one side of the separation disk (71). Several external anti-swirl plates (75) are installed on the other side of the separation disk (71). The external anti-swirl plates (75) are located at the position of the secondary filter holes (73). Several internal anti-swirl plates (76) are also installed on the side of the separation disk (71) where the external anti-swirl plates (75) are installed.

3. The catalytic cracking reaction device for industrial waste gas treatment according to claim 2, characterized in that: The edge separation assembly (7) also includes a self-heating cleaning plate (77), which is installed at the bottom of the grader tube (3). The flanged isolation ring (74) and the separation disc (71) form an annular groove (741). The self-heating cleaning plate (77) is located at the bottom of the annular groove (741). The shape of the self-heating cleaning plate (77) matches the cross-sectional shape of the annular groove (741). An electric heating wire is provided inside the self-heating cleaning plate (77).

4. The catalytic cracking reaction device for industrial waste gas treatment according to claim 1, characterized in that: The heat cleaner (63) includes an air extraction component (631), a rigid tube (632) is connected to the air extraction component (631), a plurality of suction grids (634) are provided on the air extraction component (631), a scraper (633) is provided on the air extraction component (631), the scraper (633) is close to the axial position of the plate (621), the rigid tube (632) is installed in the graded tube (3), one end of the rigid tube (632) passes through the graded tube (3) and is equipped with a suction device, and an electric heating wire is provided inside the scraper (633).

5. The catalytic cracking reaction device for industrial waste gas treatment according to claim 1, characterized in that: The grading tube (3) is provided with a swirling chamber (31) and a leveling chamber (32). The swirling chamber (31) is located between the swirling separation component (6) and the edge separation component (7), and the leveling chamber (32) is located between the edge separation component (7) and the furnace body (1).

6. The catalytic cracking reaction device for industrial waste gas treatment according to claim 1, characterized in that: The first driver (4) includes a first motor, which is mounted on the grader tube (3). A first gear (41) is mounted on the output shaft of the first motor, and the first gear (41) meshes with a gear ring (61) for transmission.

7. The catalytic cracking reaction device for industrial waste gas treatment according to claim 3, characterized in that: The second driver (5) includes a second motor, a second gear (51) is mounted on the output shaft of the second motor, and a plurality of rotating teeth (72) are provided on the separation disk (71). The second gear (51) meshes with the separation disk (71) through the rotating teeth (72) for transmission. The second motor is mounted on the grading tube (3).

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