An environmental protection engineering equipment for waste gas centrifugal treatment and a waste gas environmental protection treatment method thereof

Abstract

The present application relates to the technical field of waste gas treatment, and particularly relates to an environmental protection engineering equipment for centrifugal treatment of waste gas and a waste gas environmental protection treatment method thereof, which comprises a treatment cylinder, a wind inlet cylinder is communicated and installed on the lower end of the circumferential side of the treatment cylinder, the wind inlet cylinder is in arc shape with the connecting end of the treatment cylinder, an air extraction structure is installed in the part of the treatment cylinder inside the wind inlet cylinder, a power shaft for controlling the power rotation of the air extraction structure is installed in the treatment cylinder, a drainage structure capable of draining water is installed on the lower end of the treatment cylinder, a gas flow increasing structure for limiting the reciprocating downward flow of the gas flow is installed in the treatment cylinder, a head structure capable of spraying water into the treatment cylinder and discharging gas is communicated with the upper end of the treatment cylinder, and a wind deflector is installed at the connection between the treatment cylinder and the head structure. The present application can increase the moving distance of the gas flow in the treatment cylinder by flowing downward and then upward in the gas flow increasing structure when the gas flow passes through the gas flow increasing structure, so that the water flow can fully absorb the particles in the gas flow.

Description

Technical Field

[0001] This invention relates to the technical field of waste gas treatment, and in particular to an environmental engineering device for waste gas centrifugal treatment and a method for environmentally friendly waste gas treatment. Background Technology

[0002] Environmental protection engineering mainly includes air pollution control projects, water pollution control projects, waste gas treatment and purification projects, solid waste treatment and utilization projects, and noise control projects. During the construction of environmental protection projects, a large amount of waste gas is often generated. This waste gas, carrying foreign matter, floats in the air. With people's breathing, these foreign matter enters the lungs and accumulates, harming people's health. Cyclone towers treat waste gas by ensuring full contact between the rising gas and the swirling liquid sprayed at the top of the tower. Centrifugal force accelerates the mixing of liquid and gas, enhancing the adsorption efficiency of pollutants.

[0003] Chinese Patent CN114504914B discloses an environmental engineering device for centrifugal treatment of waste gas and a method for treating waste gas in an environmentally friendly manner. The environmental engineering device for centrifugal treatment of waste gas includes a housing, multiple guide fan blades, a filter assembly, and a first transmission mechanism. The housing has a columnar vortex chamber inside, with an air inlet at the upper end and an exhaust outlet at the lower end. This invention relates to an environmental engineering project for centrifugal waste gas treatment. During waste gas treatment, the centrifugal force generated by the swirling flow of the air separates foreign matter from clean gas. If the waste gas velocity is high, the foreign matter is thrown further outward under the centrifugal force. The airflow channel formed in the middle of multiple filter strips opens, reducing the impact of the baffle plate on the airflow speed without affecting the waste gas treatment effect of the environmental engineering equipment for centrifugal waste gas treatment. The aforementioned related technologies have the following drawbacks: In existing technologies, the airflow flows upwards throughout the equipment, and the height is limited to reduce space occupation, resulting in a short contact time between the airflow and water flow, thus failing to completely absorb particles in the waste gas. Therefore, this invention proposes an environmental engineering equipment for centrifugal waste gas treatment and its waste gas environmental protection treatment method. Summary of the Invention

[0004] In order to increase the flow trajectory of airflow inside the equipment and fully absorb particles in the exhaust gas, this invention provides an environmental engineering equipment for exhaust gas centrifugal treatment and its exhaust gas environmental protection treatment method.

[0005] The present invention provides an environmental protection engineering device for centrifugal treatment of waste gas, which adopts the following technical solution: it includes a treatment cylinder, an air inlet duct is connected to the lower circumferential side of the treatment cylinder, the connection end of the air inlet duct and the treatment cylinder is arc-shaped, an exhaust structure is installed inside the treatment cylinder in the part of the air inlet duct, a power shaft for controlling the rotation of the exhaust structure is installed inside the treatment cylinder, and a drainage structure for draining water is installed at the lower end of the treatment cylinder.

[0006] The processing cylinder is equipped with an airflow extension structure that limits the downward reciprocating flow of airflow. The upper end of the processing cylinder is connected to an end structure that can spray water into the processing cylinder and exhaust air at the same time. A guide plate is installed at the connection between the processing cylinder and the end structure.

[0007] Optionally, the inner arc of the air inlet duct is tangent to the inner arc of the processing duct.

[0008] The ventilation structure includes multiple retractable fan blades that can be elastically extended and retracted, and the retractable fan blades are fixed to the power shaft.

[0009] Optionally, the extension line of the telescopic fan blade is aligned with the axis of the power shaft, and a rotatable roller is installed at the end of the telescopic fan blade away from the power shaft.

[0010] Optionally, the airflow extension structure includes an outer cone and an inner cone, the lower ends of both the inner and outer cones being small-diameter ends, and the inner cone being coaxially located inside the upper side of the outer cone.

[0011] The inner cone and the outer cone are fixed by a strut, and the strut is fixed to the processing cylinder.

[0012] The inner cone and the outer cone are coaxially located inside the processing cylinder. The maximum diameter of both the inner cone and the outer cone is smaller than the inner diameter of the processing cylinder. A conical air guide cavity is formed between the outer side of the inner cone and the inner side of the outer cone.

[0013] The lower end of the outer cone is coaxially fitted with a concave plate having a water-permeable hole.

[0014] Optionally, the drainage structure includes a movable disc, which is slidably inserted into the lower end of the treatment cylinder and rotatably sleeved on the outer surface of the power shaft. The bottom wall of the treatment cylinder has multiple drainage holes, and an end pipe A is slidably inserted into the drainage holes. The movable disc is fixedly sleeved on the upper end of the end pipe A. The end pipe A has a slot A on one end of its circumference inside the bottom surface of the treatment cylinder. There is a gap between the movable disc and the bottom wall of the treatment cylinder, and the bottom surface of the movable disc is elastically connected to the bottom wall of the treatment cylinder.

[0015] Optionally, a water-supporting plate is slidably inserted inside the concave plate, the bottom surface of the water-supporting plate is elastically connected to the inner bottom wall of the concave plate, and an end pipe B is slidably inserted inside the water-permeable hole. The bottom surface of the water-supporting plate at the upper end of the end pipe B is flush with the upper surface of the water-supporting plate, and a groove B is opened on the circumferential surface of one end of the end pipe B located inside the bottom surface of the concave plate.

[0016] Optionally, a water-leaking concave ring is fixedly sleeved on the outer side of the upper end of the inner cone. The upper surface of the water-leaking concave ring is set in an annular recess. The outer diameter of the water-leaking concave ring is smaller than the inner diameter of the treatment cylinder. A movable ring is slidably inserted inside the annular recess of the water-leaking concave ring. The bottom surface of the movable ring is elastically connected to the water-leaking concave ring. Multiple water passage holes are opened on the bottom wall of the annular recess of the water-leaking concave ring. An end pipe C is inserted into the water passage holes.

[0017] The end pipe C is located inside the bottom surface of the leakage concave ring, and a groove C is opened on one end of its circumference.

[0018] Optionally, the concave disc is rotatably sleeved on the outer surface of the power shaft, and a fan blade assembly frame is provided on the inner side of the lower end of the inner cone, with the fan blade assembly frame fixed to the power shaft.

[0019] Optionally, the annular recess of the water leakage concave ring is located on the inner side of the outer diameter of the upper end of the outer cone cylinder, and a guide ring is fixed on the outer ring surface of the water leakage concave ring. The outer ring surface of the guide ring is curved and annular, and the maximum outer diameter of the guide ring is smaller than the inner diameter of the treatment cylinder.

[0020] The environmental protection treatment method for waste gas from centrifugal waste gas treatment equipment includes the following steps:

[0021] S1. The exhaust structure draws the waste gas to be treated into the treatment cylinder through the air inlet duct, while the end structure sprays water mist onto the treatment cylinder.

[0022] S2. The exhaust gas enters the treatment cylinder tangentially, causing it to have a tendency to rotate and move upward within the cylinder.

[0023] S3. Water droplets flowing down inside the treatment cylinder rotate with the airflow. As the water droplets and particles in the airflow rotate, they are thrown against the inner wall of the treatment cylinder by centrifugal force. Then, the water mixed with particles gradually flows down along the inner wall of the treatment cylinder.

[0024] S4. When the airflow moves to the lower side of the outer cone, the airflow moves upward on the outside of the outer cone. Then, when the airflow moves to the water leakage concave ring, the airflow flows upward between the water leakage concave ring and the treatment cylinder and downward between the outer cone and the inner cone. The airflow flows downward between the outer cone and the inner cone to the lower end of the inner cone.

[0025] S5. The airflow from the lower end of the inner cone flows upward again, causing part of the airflow to flow in the opposite direction, increasing the trajectory of the airflow and increasing the contact time between the water flow and the airflow.

[0026] In summary, the present invention has the following beneficial technical effects:

[0027] This invention incorporates components such as an airflow extension structure and an exhaust structure. The exhaust structure draws airflow into the treatment cylinder, where it enters tangentially, causing the exhaust gas to rotate and move upwards within the cylinder. As the airflow passes through the airflow extension structure, it flows downwards and then upwards again, increasing the distance the airflow travels within the treatment cylinder and allowing the water flow to fully absorb the particles in the airflow.

[0028] This invention incorporates components such as a movable disc, a drainage disc, an end pipe A, and a slot A. When the water flow on the upper side of the movable disc is low, the movable disc, in its elastic connection with the treatment cylinder, moves the slot A on the surface of the end pipe A to the bottom of the treatment cylinder, preventing the airflow on the upper side of the movable disc from being discharged to the lower side of the treatment cylinder through the slot A. When the water flow carries the particles in the absorbed waste gas downwards to the lower end of the treatment cylinder, and there is enough water accumulated on the upper side of the movable disc, the movable disc gradually moves downwards under the gravity of the water, causing the slot A to move to the lower side of the treatment cylinder, and the water on the upper side of the movable disc flows to the lower end of the treatment cylinder through the slot A.

[0029] This invention incorporates components such as a water-leaking concave ring, a water-supporting plate, end pipe B, and end pipe C. When there is no water on the upper side of the water-leaking concave ring and the concave plate, the elastic connection between the movable ring and the water-leaking concave ring causes end pipe C to block the water passage, preventing airflow from passing through. Similarly, the elastic connection between the water-supporting plate and the concave plate causes end pipe B to block the water passage, preventing airflow from passing through. Once sufficient water is stored on the upper side of the movable ring and the upper side of the water-supporting plate, the movable ring and the water-supporting plate move downwards under the gravity of the water, pushing slots B and C to the lower side of the concave plate and the lower side of the water-leaking concave ring, respectively. This allows water to pass between the inner and outer cones and absorb particles in the airflow. Attached Figure Description

[0030] Figure 1 This is a schematic diagram of the overall structure in an embodiment of the present invention;

[0031] Figure 2 This is a schematic diagram of the internal structure of the processing cylinder in an embodiment of the present invention;

[0032] Figure 3 This is a top view schematic diagram of some structures in an embodiment of the present invention;

[0033] Figure 4 This is a front view schematic diagram of some structures in an embodiment of the present invention;

[0034] Figure 5 This is a schematic diagram of the connection between the support rod and the processing cylinder in an embodiment of the present invention;

[0035] Figure 6 This is a schematic diagram of the connection between the power shaft and the blower fan blade assembly in an embodiment of the present invention;

[0036] Figure 7 This is a schematic diagram showing the partial structure unfolded in an embodiment of the present invention;

[0037] Figure 8 This is an embodiment of the present invention. Figure 8 Enlarged schematic diagram of the structure at point A in the middle;

[0038] Figure 9 This is an embodiment of the present invention. Figure 8 Enlarged schematic diagram of the structure at point B.

[0039] Reference numerals: 1. Processing cylinder; 2. Air inlet cylinder; 3. Power shaft; 4. Drainage structure; 41. Movable disc; 42. Drain hole; 43. End pipe A; 44. Slot A; 5. Exhaust structure; 51. Telescopic fan blade; 52. Roller; 6. Airflow extension structure; 61. Outer cone; 62. Inner cone; 621. Water leakage concave ring; 622. Movable ring; 623. Water passage hole; 624. End pipe C; 625. Slot C; 63. Support rod; 64. Air guide cavity; 65. Water permeable hole; 66. Concave disc; 661. Water support disc; 662. End pipe B; 663. Slot B; 67. Exhaust fan blade assembly frame; 68. Air guide ring; 7. End structure; 8. Air guide plate. Detailed Implementation

[0040] The following is in conjunction with the appendix Figures 1-9 The present invention will be described in further detail below.

[0041] This invention discloses an environmental engineering device for centrifugal treatment of waste gas. For example... Figures 1-9 As shown, the device includes a treatment cylinder 1. An air inlet duct 2 is installed on the lower circumferential side of the treatment cylinder 1. The connection end between the air inlet duct 2 and the treatment cylinder 1 is arc-shaped. The inner arc wall of the air inlet duct 2 is tangential to the inner arc wall of the treatment cylinder 1. Exhaust gas entering the treatment cylinder 1 from the air inlet duct 2 enters the treatment cylinder 1 tangentially, causing the exhaust gas to have a tendency to rotate and move upwards within the treatment cylinder 1. An exhaust structure 5 is installed inside the treatment cylinder 1, located at the section containing the air inlet duct 2. The exhaust structure 5 can draw the exhaust gas into the treatment cylinder 1 through the air inlet duct 2. A power shaft 3 is installed inside the treatment cylinder 1 to control the rotation of the exhaust structure 5. The lower end of the 1 is equipped with a motor that controls the rotation of the power shaft 3. The exhaust structure 5 includes multiple retractable fan blades 51 that can be elastically extended. The extension line of the retractable fan blade 51 is aligned with the axis of the power shaft 3. A rotatable roller 52 is installed at the end of the retractable fan blade 51 away from the power shaft 3. The retractable fan blade 51 has the tendency to push the roller 52 closer to the inner wall of the treatment cylinder 1 and the air inlet cylinder 2, thereby increasing the air volume driven by the retractable fan blade 51 during rotation, which facilitates the exhaust gas to enter the treatment cylinder 1 through the air inlet cylinder 2. The retractable fan blade 51 is fixed to the power shaft 3.

[0042] A drainage structure 4 is installed at the lower end of the treatment cylinder 1, allowing water to drain from the lower end of the treatment cylinder 1. The drainage structure 4 includes a movable disc 41, which is slidably inserted into the lower end of the treatment cylinder 1 and rotatably sleeved on the outer surface of the power shaft 3. Multiple drainage holes 42 are provided on the inner bottom wall of the treatment cylinder 1, and end pipes A43 are slidably inserted into the drainage holes 42. The movable disc 41 is fixedly sleeved on the upper end of the end pipe A43. A slot A44 is provided on the circumferential surface of one end of the end pipe A43 located inside the bottom surface of the treatment cylinder 1. A gap exists between the movable disc 41 and the inner bottom wall of the treatment cylinder 1, and the bottom surface of the movable disc 41 springs against the inner bottom wall of the treatment cylinder 1. The elastic connection between the movable disc 41 and the treatment cylinder 1 has a tendency to move the slot A44 to the bottom of the treatment cylinder 1, so that the lower end of the treatment cylinder 1 blocks the slot A44, preventing airflow from being discharged from the drain hole 42. When enough water accumulates on the upper side of the movable disc 41, the movable disc 41 moves downward under the pressure of the water, so that the slot A44 moves to the lower side of the treatment cylinder 1, allowing the water on the upper side of the movable disc 41 to flow from the slot A44 through the end pipe A43 to the lower side of the treatment cylinder 1. A water tank is installed on the lower side of the treatment cylinder 1 to hold water, and a filter plate is installed in the water tank to filter the water flowing out of the treatment cylinder 1, so that the water flowing into the water tank can be recycled after filtration.

[0043] The processing cylinder 1 is equipped with an airflow extension structure 6 that limits the reciprocating downward flow of airflow. The airflow extension structure 6 includes an outer cone 61 and an inner cone 62. The lower ends of the inner cone 62 and the outer cone 61 are both small-diameter ends. The inner cone 62 is coaxially located inside the upper side of the outer cone 61.

[0044] The inner cone 62 and the outer cone 61 are coaxially located inside the treatment cylinder 1. The maximum diameter of both the inner cone 62 and the outer cone 61 is smaller than the inner diameter of the treatment cylinder 1. A conical air guide cavity 64 is formed between the outer side of the inner cone 62 and the inner side of the outer cone 61. A concave plate 66 with a water permeable hole 65 is coaxially installed at the lower end of the outer cone 61. The airflow enters through the upper end of the air guide cavity 64 while flowing upward, and then flows downward in the air guide cavity 64 under the lower wind pressure. After flowing from the lower end of the inner cone 62, it flows upward again.

[0045] A water-supporting plate 661 is slidably inserted inside the concave plate 66. The bottom surface of the water-supporting plate 661 is elastically connected to the inner bottom wall of the concave plate 66. An end pipe B662 is slidably inserted inside the water-permeable hole 65. The bottom surface of the water-supporting plate 661 at the upper end of the end pipe B662 is flush with the upper surface of the water-supporting plate 661. A slot B663 is opened on the circumferential surface of one end of the end pipe B662 located inside the bottom surface of the concave plate 66. The elastic connection between the water-supporting plate 661 and the concave plate 66 has a tendency to cause the end pipe B662 to block the water-permeable hole 65. The concave plate 66 blocks the lower end of the outer cone 61, preventing airflow from entering the interior of the outer cone 61 from the lower end. Then, when the water flows downward in the air guide cavity 64 following the airflow, it affects the airflow. The particles are absorbed by the concave disc 66, which is rotatably sleeved on the outer surface of the power shaft 3. The inner side of the lower end of the inner cone 62 is provided with a fan blade assembly 67, which is fixed to the power shaft 3. When the fan blade assembly 67 rotates with the power shaft 3, it has the tendency to help drive the airflow discharged from the lower end of the air guide cavity 64 to flow upward, thereby increasing the upward flow velocity of the airflow and preventing the airflow velocity from being too low after flowing out from the lower side of the air guide cavity 64. After the water volume on the upper side of the water support plate 661 reaches a certain level, the water support plate 661 moves downward under water pressure, causing the slot B663 to move to the lower side of the concave disc 66. This allows the water on the upper side of the concave disc 66 to be discharged from the slot B663 to the lower side of the outer cone 61 through the end pipe B662.

[0046] A water-leaking concave ring 621 is fixedly sleeved on the outer side of the upper end of the inner cone 62. The upper surface of the water-leaking concave ring 621 is set in an annular recess. The outer diameter of the water-leaking concave ring 621 is smaller than the inner diameter of the treatment cylinder 1. A movable ring 622 is slidably inserted into the annular recess of the water-leaking concave ring 621. The bottom surface of the movable ring 622 is elastically connected to the water-leaking concave ring 621. Multiple water passage holes 623 are opened on the bottom wall of the annular recess of the water-leaking concave ring 621. An end pipe C624 is inserted into the water passage hole 623. The elastic connection between the movable ring 622 and the water-leaking concave ring 621 has the tendency to drive the movable ring 622 to block the end pipe C624 to the water passage hole 623, preventing airflow from passing through the water passage hole 623.

[0047] The end pipe C624 is located inside the bottom surface of the water-leaking concave ring 621. One end of the circumferential surface has a groove C625. After enough water accumulates on the upper side of the movable ring 622, the movable ring 622 moves downward under water pressure, which drives the groove C625 to move to the lower side of the water-leaking concave ring 621. This allows the water on the upper side of the movable ring 622 to flow out through the end pipe C624 from the groove C625, and then the water flows into the air guide cavity 64.

[0048] The inner cone 62 and the outer cone 61 are fixed by a strut 63, which is fixed to the processing cylinder 1 and supports the inner cone 62 and the outer cone 61.

[0049] The water leakage concave ring 621 has an annular recess located on the inner side of the outer diameter of the upper end of the outer cone 61. A guide ring 68 is fixed on the outer ring surface of the water leakage concave ring 621. The outer ring surface of the guide ring 68 is curved and annular. The maximum outer diameter of the guide ring 68 is smaller than the inner diameter of the treatment cylinder 1. When the airflow passes through the guide ring 68, it tends to guide the airflow into the air guide cavity 64.

[0050] The upper end of the treatment cylinder 1 is connected to an end structure 7 that sprays water into the treatment cylinder 1 and can also vent air. A nozzle is installed inside the end structure 7. A water pump that can draw water from the inside is installed on the outside of the water tank. The water pump supplies water to the nozzle, so that the nozzle sprays water into the treatment cylinder 1. A guide plate 8 is installed at the connection between the treatment cylinder 1 and the end structure 7. The guide plate 8 is set at an angle and guides the flow trajectory of the airflow, so that the airflow has a rotational tendency.

[0051] The environmental protection treatment method for waste gas from centrifugal waste gas treatment equipment includes the following steps:

[0052] S1. The exhaust structure 5 draws the waste gas to be treated into the treatment cylinder 1 through the air inlet duct 2, while the end structure 7 sprays water mist onto the treatment cylinder 1.

[0053] S2. When the exhaust gas enters the treatment cylinder 1, it enters tangentially, causing the exhaust gas to have a tendency to rotate and move upward within the treatment cylinder 1.

[0054] S3. The water droplets flowing down inside the treatment cylinder 1 rotate with the airflow. As the water droplets and particles in the airflow rotate, they are thrown against the inner wall of the treatment cylinder 1 by centrifugal force. Then, the water mixed with particles gradually flows down along the inner wall of the treatment cylinder 1.

[0055] S4. When the airflow moves to the lower side of the outer cone 61, the airflow moves upward outside the outer cone 61. Then, when the airflow moves to the water leakage concave ring 621, the airflow flows upward between the water leakage concave ring 621 and the treatment cylinder 1 and downward between the outer cone 61 and the inner cone 62. The airflow flows downward between the outer cone 61 and the inner cone 62 to the lower end of the inner cone 62.

[0056] S5. The airflow from the lower end of the inner cone 62 flows upward again, causing part of the airflow to flow in the opposite direction, increasing the trajectory of the airflow and increasing the contact time between the water flow and the airflow.

[0057] The working principle is as follows: the exhaust structure 5 drives the airflow into the treatment cylinder 1. The airflow enters the treatment cylinder 1 tangentially. The end structure 7 sprays water mist into the treatment cylinder 1, causing the exhaust gas to rotate and move upward within the treatment cylinder 1. When the airflow passes through the airflow extension structure 6, the airflow flows downward and then upward within the airflow extension structure 6, increasing the distance the airflow travels within the treatment cylinder 1. This allows the water flow to fully absorb the particles in the airflow. The water flow that has absorbed the impurities in the exhaust gas is discharged from the drainage structure 4 at the lower end of the treatment cylinder 1. Then, the treated exhaust gas is discharged from the upper end of the end structure 7.

[0058] The above are all preferred embodiments of the present invention and are not intended to limit the scope of protection of the present invention. Therefore, all equivalent changes made in accordance with the structure, shape and principle of the present invention should be covered within the scope of protection of the present invention.

Claims

1. An environmental engineering device for centrifugal treatment of waste gas, comprising a treatment cylinder (1), wherein an air inlet duct (2) is connected to and installed on the lower circumferential side of the treatment cylinder (1), characterized in that: The connection end between the air inlet duct (2) and the processing duct (1) is arc-shaped. The processing duct (1) is equipped with an exhaust structure (5) located in the part of the air inlet duct (2). The processing duct (1) is equipped with a power shaft (3) that controls the rotation of the exhaust structure (5). The lower end of the processing duct (1) is equipped with a drainage structure (4) that can drain water. The processing cylinder (1) is equipped with an airflow extension structure (6) that limits the reciprocating downward flow of airflow. The upper end of the processing cylinder (1) is connected to an end structure (7) that sprays water into the processing cylinder (1) and can also exhaust air. A guide plate (8) is installed at the connection between the processing cylinder (1) and the end structure (7). The airflow range extender structure (6) includes an outer cone (61) and an inner cone (62). The lower ends of the inner cone (62) and the outer cone (61) are both small-diameter ends. The inner cone (62) is coaxially located inside the upper side of the outer cone (61). The inner cone (62) and the outer cone (61) are fixed by a strut (63), and the strut (63) is fixed to the processing cylinder (1); The inner cone (62) and the outer cone (61) are coaxially located inside the processing cylinder (1). The maximum diameter of the inner cone (62) and the outer cone (61) is smaller than the inner diameter of the processing cylinder (1). A conical air guide cavity (64) is formed between the outer side of the inner cone (62) and the inner side of the outer cone (61). The lower end of the outer cone (61) is coaxially fitted with a concave plate (66) with a water-permeable hole (65). A water support plate (661) is slidably inserted inside the concave plate (66). The bottom surface of the water support plate (661) is elastically connected to the inner bottom wall of the concave plate (66). An end pipe B (662) is slidably inserted inside the water permeable hole (65). The bottom surface of the water support plate (661) at the upper end of the end pipe B (662) is flush with the upper surface of the water support plate (661). A slot B (663) is opened on the circumferential surface of one end of the end pipe B (662) inside the bottom surface of the concave plate (66). A water-leaking concave ring (621) is fixedly sleeved on the outer side of the upper end of the inner cone (62). The upper surface of the water-leaking concave ring (621) is set in an annular recess. The outer diameter of the water-leaking concave ring (621) is smaller than the inner diameter of the treatment cylinder (1). A movable ring (622) is slidably inserted into the annular recess of the water-leaking concave ring (621). The bottom surface of the movable ring (622) is elastically connected to the water-leaking concave ring (621). Multiple water passage holes (623) are opened on the bottom wall of the annular recess of the water-leaking concave ring (621). An end pipe C (624) is inserted into the water passage hole (623). The end pipe C (624) has a groove C (625) on one end of the circumference inside the bottom surface of the water leakage concave ring (621). The concave disc (66) is rotatably sleeved on the outer surface of the power shaft (3), and a fan blade assembly frame (67) is provided on the inner side of the lower end of the inner cone (62), and the fan blade assembly frame (67) is fixed to the power shaft (3); The annular recess of the water leakage concave ring (621) is located on the inner side of the outer diameter of the upper end of the outer cone (61). A guide ring (68) is fixed on the outer ring surface of the water leakage concave ring (621). The outer ring surface of the guide ring (68) is a curved annular arrangement. The maximum outer diameter of the guide ring (68) is smaller than the inner diameter of the treatment cylinder (1).

2. The environmental protection engineering equipment for waste gas centrifugal treatment according to claim 1, characterized in that: The inner arc of the air inlet duct (2) is tangent to the inner arc of the processing duct (1); The exhaust structure (5) includes multiple retractable fan plates (51) that can be elastically extended and retracted, and the retractable fan plates (51) are fixed to the power shaft (3).

3. The environmental protection engineering equipment for waste gas centrifugal treatment according to claim 2, characterized in that: The extension line of the telescopic fan plate (51) is aligned with the axis of the power shaft (3), and a rotatable roller (52) is installed at the end of the telescopic fan plate (51) away from the power shaft (3).

4. The environmental protection engineering equipment for centrifugal treatment of waste gas according to claim 1, characterized in that: The drainage structure (4) includes a movable disc (41), which is slidably inserted into the lower end of the treatment cylinder (1). The movable disc (41) is rotatably sleeved on the outer surface of the power shaft (3). Multiple drainage holes (42) are provided on the inner bottom wall of the treatment cylinder (1). An end pipe A (43) is slidably inserted into the drainage hole (42). The movable disc (41) is fixedly sleeved on the upper end of the end pipe A (43). A slot A (44) is provided on the circumferential surface of one end of the end pipe A (43) located inside the bottom surface of the treatment cylinder (1). There is a gap between the movable disc (41) and the inner bottom wall of the treatment cylinder (1). The bottom surface of the movable disc (41) is elastically connected to the inner bottom wall of the treatment cylinder (1).

5. The waste gas environmental protection treatment method of the waste gas centrifugal treatment environmental protection engineering equipment according to any one of claims 1-4, characterized in that: Includes the following steps: S1. The exhaust structure (5) draws the waste gas to be treated into the treatment cylinder (1) through the air inlet (2), while the end structure (7) sprays water mist onto the treatment cylinder (1); S2. When the exhaust gas enters the treatment cylinder (1), it enters tangentially, causing the exhaust gas to have a tendency to rotate and move upward within the treatment cylinder (1); S3. The water droplets flowing down inside the treatment cylinder (1) rotate with the airflow. The water droplets and particles in the airflow are thrown to the inner wall of the treatment cylinder (1) under centrifugal force during rotation. Then the water mixed with particles gradually flows down along the inner wall of the treatment cylinder (1). S4. When the airflow moves to the lower side of the outer cone (61), the airflow moves upward outside the outer cone (61). Then, when the airflow moves to the water leakage concave ring (621), the airflow flows upward between the water leakage concave ring (621) and the treatment cylinder (1) and downward between the outer cone (61) and the inner cone (62). The airflow flows downward between the outer cone (61) and the inner cone (62) to the lower end of the inner cone (62). S5. The airflow from the lower end of the inner cone (62) flows upward again, causing the airflow to flow in the opposite direction, increasing the trajectory of the airflow and increasing the contact time between the water flow and the airflow.

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