RTO incinerator purification system

Abstract

The utility model discloses an RTO incinerator purification system which comprises an air supplementing box, a system waste gas recovery pipe and an incinerator air inlet pipe, the system waste gas recovery pipe and the incinerator air inlet pipe are installed on the side of the air supplementing box, an air supplementing pipe communicated with the interior of the air supplementing box is fixedly installed on the inner wall of the air supplementing box, a baffle plate is installed on the inner wall of the air supplementing box in a sliding mode, and a rack is fixedly connected to the top of the baffle plate. A servo motor is fixedly installed on the left side of the air supplementing box, and an output shaft of the servo motor penetrates through and extends into the air supplementing box. According to the RTO incinerator purification system, effective purification and combustion supporting of waste gas are achieved through cooperative work of the air supplementing box, the baffle plate and the filtering assembly, meanwhile, the baffle plate is driven by the servo motor to adjust connection and disconnection of the air supplementing pipe and control the air inlet amount, it is guaranteed that oxygen can be supplemented in time when the incinerator is in an oxygen deficit state, and the service life of the incinerator is prolonged. An electromagnet in the filter assembly is matched with a spring, so that a circular filter plate intermittently vibrates, attached dust and impurities are effectively removed, and blockage is prevented.

Description

Technical Field

[0001] This utility model relates to the field of incinerator technology, and more specifically, to an RTO incinerator purification system. Background Technology

[0002] Regenerative Thermal Oxidizer (RTO) is an energy-saving and environmentally friendly device for treating low- to medium-concentration volatile organic compounds (VOCs). It uses thermal oxidation to treat these VOCs, recovering heat through a ceramic regenerative bed heat exchanger. The RTO consists of a ceramic regenerative bed, automatic control valves, a combustion chamber, and a control system. The automatic control valves at the bottom of the regenerative bed are connected to the inlet and outlet manifolds respectively. The regenerative bed uses reversing valves to alternately redirect the flow, retaining the heat from the high-temperature gas exiting the combustion chamber and preheating the VOCs entering the bed. The preheated VOCs, reaching a certain temperature (≥760℃), undergo oxidation in the combustion chamber, producing carbon dioxide and water, thus achieving purification. Existing RTO incinerator systems often suffer from insufficient airflow during waste gas treatment, affecting combustion efficiency and consequently the overall waste gas treatment effect.

[0003] Patent application CN2020226819481 discloses a make-up air device for an RTO incinerator purification system, including a sealed air box with an exhaust gas inlet and outlet. A transverse make-up air pipe is connected to one side of the air box, and a valve plate rotatable around an axis is installed inside the make-up air pipe. The axis is fixedly connected to the valve plate and rotatably connected to both sides of the make-up air pipe. The diameter of the valve plate is equal to the inner diameter of the make-up air pipe. This invention is used to supplement air into the RTO incinerator, improving combustion efficiency and exhaust gas treatment effect. It opens when needed and closes when not needed; the operator can adjust the valve plate opening according to actual operating conditions. The valve plate is controlled by a motor, and the valve plate has a limit switch, resulting in a high degree of automation. A specially designed sealing structure ensures good sealing when the valve plate is closed.

[0004] This structure controls the intake air volume by adjusting the sealing and opening angle of the air supply duct through the raft plate. However, in actual use, the exhaust gas directly enters the raft plate, resulting in high fan energy consumption and high stress on the raft plate, which can easily lead to damage or sealing failure, thus affecting the operation of the purification system. Furthermore, this structure lacks a filtration structure during external air intake, and the entry of debris into the purification system can also affect the operation of the incinerator. Utility Model Content

[0005] In view of the problems existing in the prior art, the purpose of this utility model is to provide an RTO incinerator purification system to solve the problems in the background technology.

[0006] To achieve the above objectives, the present invention adopts the following technical solution;

[0007] The RTO incinerator purification system includes a makeup air box and a system exhaust gas recovery pipe and an incinerator air inlet pipe installed on its side. A makeup air pipe communicating with the interior of the makeup air box is fixedly installed on the inner wall of the makeup air box. A baffle plate is slidably installed on the inner wall of the makeup air box. A rack is fixedly connected to the top of the baffle plate. A servo motor is fixedly installed on the left side of the makeup air box. The output shaft of the servo motor passes through and extends into the interior of the makeup air box. A gear is fixedly connected to the output shaft of the servo motor. The gear is located at the top of the rack and meshes with the rack. The baffle plate is located on the right side of the makeup air pipe. A guide seat is fixedly installed on the inner wall of the makeup air box. A filter assembly is installed inside the makeup air pipe.

[0008] The filter assembly includes a mounting ring mounted on the inner wall of the air supply duct. A circular filter plate is slidably connected to the left side of the mounting ring, and a uniformly distributed spring is fixedly connected to the right side of the circular filter plate. The right end of the spring is fixedly connected to the mounting ring. An electromagnet is fixedly mounted to the left side of the mounting ring, and a metal plate magnetically connected to the electromagnet is connected to the circular filter plate.

[0009] As a further description of the above technical solution: a guide plate is fixedly installed on the right side of the shield, and the right side of the guide plate is arc-shaped.

[0010] As a further description of the above technical solution: a guide groove is provided on the inner wall of the air supply box, and the baffle plate is slidably connected to the inner wall of the guide groove.

[0011] As a further description of the above technical solution: the left end of the air supply pipe is obliquely cut to the right, and a drainage groove is provided on the inner wall of the air supply pipe.

[0012] As a further description of the above technical solution: the circular filter plate and the inner wall of the air supply pipe are subjected to sliding sealing treatment.

[0013] As a further description of the above technical solution: the spring is provided with a guide shaft inside, the left end of the guide shaft is fixedly connected to the right side of the circular filter plate, and the right end of the guide shaft passes through and extends to the right side of the mounting ring.

[0014] Compared with existing technologies, the advantages of this utility model are:

[0015] In this invention, the RTO incinerator purification system achieves effective purification and combustion of waste gas through the coordinated operation of the make-up air box, baffle plate, and filter assembly. Simultaneously, the baffle plate, driven by a servo motor, adjusts the opening and closing of the make-up air pipe to control the air intake, ensuring timely oxygen replenishment when the incinerator is oxygen-deficient. The electromagnets and springs in the filter assembly work together to cause the circular filter plates to vibrate intermittently, effectively removing attached dust and impurities and preventing blockage. Furthermore, the guide seat not only guides the flow of waste gas but also reduces the impact on the baffle plate, lowering energy loss. This structure improves the efficiency of waste gas treatment within the purification system, extends equipment lifespan, simplifies operation, and enhances system stability and reliability. Attached Figure Description

[0016] Figure 1 This is a three-dimensional structural diagram of the present invention;

[0017] Figure 2 This is a top view cross-sectional structural diagram of the present invention;

[0018] Figure 3 This is a top view cross-sectional structural diagram of the filter assembly of this utility model;

[0019] Figure 4 For the present utility model Figure 2 Enlarged structural diagram at point A in the middle.

[0020] Explanation of the labels in the diagram:

[0021] 1. Makeup air box; 2. System exhaust gas recovery pipe; 3. Incinerator inlet pipe; 4. Makeup air pipe; 5. Baffle plate; 6. Rack; 7. Servo motor; 8. Gear; 9. Guide seat; 10. Filter assembly; 1001. Mounting ring; 1002. Circular filter plate; 1003. Spring; 1004. Electromagnet; 1005. Metal plate; 11. Guide plate; 12. Guide groove; 13. Drainage groove; 14. Guide shaft. Detailed Implementation

[0022] The technical solutions of the present invention will be clearly and completely described below with reference to the accompanying drawings of the embodiments of the present invention.

[0023] Please see Figures 1-4In this utility model, the RTO incinerator purification system includes an air supply box 1 and a system waste gas recovery pipe 2 and an incinerator air inlet pipe 3 installed on its side. An air supply pipe 4 connected to the inside of the air supply box 1 is fixedly installed on the inner wall of the air supply box 1. A baffle plate 5 is slidably installed on the inner wall of the air supply box 1. A rack 6 is fixedly connected to the top of the baffle plate 5. A servo motor 7 is fixedly installed on the left side of the air supply box 1. The output shaft of the servo motor 7 passes through and extends into the interior of the air supply box 1. A gear 8 is fixedly connected to the output shaft of the servo motor 7. The gear 8 is located at the top of the rack 6 and meshes with the rack 6. The baffle plate 5 is located on the right side of the air supply pipe 4. A guide seat 9 is fixedly installed on the inner wall of the air supply box 1. A filter assembly 10 is provided inside the air supply pipe 4.

[0024] The filter assembly 10 includes a mounting ring 1001, which is mounted on the inner wall of the air supply duct 4. A circular filter plate 1002 is slidably connected to the left side of the mounting ring 1001. A uniformly distributed spring 1003 is fixedly connected to the right side of the circular filter plate 1002. The right end of the spring 1003 is fixedly connected to the mounting ring 1001. An electromagnet 1004 is fixedly mounted to the left side of the mounting ring 1001. A metal plate 1005 is connected to the circular filter plate 1002 and is magnetically connected to the electromagnet 1004.

[0025] A guide groove 12 is provided on the inner wall of the air supply box 1. The baffle plate 5 is slidably connected to the inner wall of the guide groove 12. The circular filter plate 1002 is slidably sealed to the inner wall of the air supply pipe 4.

[0026] In the RTO incinerator purification system, the waste gas containing heat is purified by the waste gas treatment equipment and then sent back to the incinerator through the system waste gas recovery pipe 2 to achieve combustion support. A fan is installed on the pipe to provide suction. According to the view, the system waste gas recovery pipe 2 is cut into two sections by the make-up air box 1 and the fan is connected to the incinerator inlet pipe 3. The fan can drive the gas inside the make-up air box 1 into the incinerator through the incinerator inlet pipe 3.

[0027] During normal operation, as shown in the diagram, the baffle plate 5 blocks the make-up air pipe 4, allowing the treated exhaust gas in the purification system to enter the make-up air box 1 through the system exhaust gas recovery pipe 2. After contacting the guide seat 9, it is drawn by the fan into the incinerator inlet pipe 3 and then into the incinerator. The guide seat 9 guides the recovered exhaust gas and prevents it from impacting the baffle plate 5, thus avoiding energy waste and increasing the fan's energy loss. In actual use, if there is a lack of oxygen for combustion, the servo motor 7 is controlled to operate. The servo motor 7 drives the gear 8, which is fixedly connected to it, to rotate synchronously. The gear 8 and the rack 6 work together to move the baffle plate 5 until the make-up air pipe 4 is exposed and connected to the inside of the make-up air box 1. The operator can control the stop position of the baffle plate 5 to control the air intake. At this time, the external airflow is driven by the fan and enters the make-up air box 1 through the make-up air pipe 4, and then enters the incinerator through the incinerator inlet pipe 3 for combustion.

[0028] During the above process, the airflow passes through the filter assembly 10 before entering the air supply box 1 through the air supply pipe 4. The gas can penetrate the filter holes on the circular filter plate 1002, and the dust, impurities or other objects contained in the airflow cannot enter the air supply box 1, thus avoiding blockage. The electromagnet 1004 is set to work intermittently. The electromagnet 1004 generates magnetism to attract the metal plate 1005 on the circular filter plate 1002, thereby causing the circular filter plate 1002 to move closer to the mounting ring 1001. At this time, the spring 1003 is subjected to force and begins to contract, generating an opposite force. After the electromagnet 1004 is de-energized, the spring 1003 pushes the circular filter plate 1002 to rebound quickly. Due to the characteristics of the spring 1003, the circular filter plate 1002 begins to move back and forth. Under the action of inertia and vibration, the attached debris falls off to avoid affecting the air intake.

[0029] In this invention, the RTO incinerator purification system achieves effective purification and combustion of waste gas through the coordinated operation of the make-up air box 1, the baffle plate 5, and the filter assembly 10. Simultaneously, the baffle plate 5, driven by the servo motor 7, adjusts the opening and closing of the make-up air pipe 4 to control the air intake, ensuring timely oxygen replenishment when the incinerator is oxygen-deficient. The electromagnet 1004 and spring 1003 in the filter assembly 10 work together to cause the circular filter plate 1002 to vibrate intermittently, effectively removing attached dust and impurities and preventing blockage. Furthermore, the guide seat 9 not only guides the flow of waste gas but also reduces the impact on the baffle plate 5, lowering energy loss. This structure improves the efficiency of waste gas treatment within the purification system, extends the equipment's service life, simplifies the operation process, and enhances the system's stability and reliability.

[0030] Please see Figure 2 and 3 Among them, a guide plate 11 is fixedly installed on the right side of the shielding plate 5, and the right side of the guide plate 11 is in an arc shape.

[0031] In this invention, after the baffle plate 5 moves and exposes the air supply pipe 4, the airflow enters the air supply box 1. The arc-shaped guide plate 11 can guide the airflow to a certain extent.

[0032] Please see Figures 1-3 The left end of the air supply pipe 4 is obliquely cut to the right, and a drainage groove 13 is provided on the inner wall of the air supply pipe 4.

[0033] In this invention, the downwardly angled end of the air supply pipe 4 and the drainage groove 13 can both provide good waterproof and rainproof effects. Since the system is large in scale and needs to be installed outdoors, rainwater should be avoided from affecting the system.

[0034] Please see Figures 2-4 The spring 1003 has a guide shaft 14 inside. The left end of the guide shaft 14 is fixedly connected to the right side of the circular filter plate 1002, and the right end of the guide shaft 14 extends through and to the right side of the mounting ring 1001.

[0035] In this invention, the guide shaft 14 can restrict the circular filter plate 1002 and the spring 1003, so that the circular filter plate 1002 always maintains stable horizontal movement, while preventing the spring 1003 from bending and affecting the rebound effect.

[0036] The above description is merely a preferred embodiment of this utility model; however, the protection scope of this utility model is not limited thereto. Any equivalent substitutions or modifications made by those skilled in the art within the technical scope disclosed in this utility model, based on the technical solution and its improved concept, should be included within the protection scope of this utility model.

Claims

1. An RTO incinerator purification system, comprising a make-up air box (1) and a system waste gas recovery pipe (2) and an incinerator inlet pipe (3) installed on its side, characterized in that: The inner wall of the air supply box (1) is fixedly installed with an air supply pipe (4) that communicates with its interior. A baffle plate (5) is slidably installed on the inner wall of the air supply box (1). A rack (6) is fixedly connected to the top of the baffle plate (5). A servo motor (7) is fixedly installed on the left side of the air supply box (1). The output shaft of the servo motor (7) passes through and extends into the interior of the air supply box (1). A gear (8) is fixedly connected to the output shaft of the servo motor (7). The gear (8) is located at the top of the rack (6) and meshes with the rack (6). The baffle plate (5) is located on the right side of the air supply pipe (4). A guide seat (9) is fixedly installed on the inner wall of the air supply box (1). A filter assembly (10) is provided inside the air supply pipe (4). The filter assembly (10) includes a mounting ring (1001) which is mounted on the inner wall of the air supply pipe (4). A circular filter plate (1002) is slidably connected to the left side of the mounting ring (1001). A uniformly distributed spring (1003) is fixedly connected to the right side of the circular filter plate (1002). The right end of the spring (1003) is fixedly connected to the mounting ring (1001). An electromagnet (1004) is fixedly mounted to the left side of the mounting ring (1001). A metal plate (1005) that is magnetically connected to the electromagnet (1004) is connected to the circular filter plate (1002).

2. The RTO incinerator purification system according to claim 1, characterized in that: A guide plate (11) is fixedly installed on the right side of the shield (5), and the right side of the guide plate (11) is arc-shaped.

3. The RTO incinerator purification system according to claim 1, characterized in that: The inner wall of the air supply box (1) is provided with a guide groove (12), and the baffle plate (5) is slidably connected to the inner wall of the guide groove (12).

4. The RTO incinerator purification system according to claim 1, characterized in that: The left end of the air supply pipe (4) is obliquely cut to the right, and a drainage groove (13) is provided on the inner wall of the air supply pipe (4).

5. The RTO incinerator purification system according to claim 1, characterized in that: The circular filter plate (1002) and the inner wall of the air supply pipe (4) are made to slide and seal.

6. The RTO incinerator purification system according to claim 1, characterized in that: The spring (1003) has a guide shaft (14) inside. The left end of the guide shaft (14) is fixedly connected to the right side of the circular filter plate (1002), and the right end of the guide shaft (14) extends through and to the right side of the mounting ring (1001).

Images