Online baking type multi-tank regenerative incinerator

Abstract

The application relates to an online baking type multi-tank regenerative incineration device, which comprises a regenerative combustion furnace, a first regenerative tank, a second regenerative tank, a third regenerative tank, an air outlet pipe, a blowing pipe, a waste gas collecting valve, a waste gas collecting tank and a chimney. The regenerative combustion furnace is internally provided with an oxidation tank. The first regenerative tank, the second regenerative tank and the third regenerative tank are connected with the oxidation tank. The first regenerative tank is suitable for being connected with a waste gas outlet, is connected with the waste gas collecting valve through the air outlet pipe and is connected with a blowing valve through the blowing pipe. The second regenerative tank is suitable for being connected with the waste gas outlet, is connected with the waste gas collecting valve through a second air outlet valve and is connected with the blowing valve through the blowing pipe. The third regenerative tank is suitable for being connected with the waste gas outlet, is connected with the waste collecting valve through the air outlet pipe and is connected with the blowing valve through the blowing pipe. The regenerative tank can be cleaned while waste gas is treated, a standby organic waste gas treatment device does not need to be additionally arranged, and the production and operation cost of an enterprise is effectively reduced.

Description

Technical Field

[0001] This application relates to the field of organic waste gas treatment technology, and in particular to an online baking type multi-tank regenerative thermal incinerator. Background Technology

[0002] Regenerative thermal oxidizers (RTOs) are a type of organic waste gas treatment equipment. Based on the principle of high-temperature oxidation, RTOs oxidize organic pollutants in waste gas into carbon dioxide and water in the high-temperature environment of the oxidation tank, removing the vast majority of organic pollutants with high efficiency. The regenerator tanks of an RTO are filled with heat storage media to store the heat released during the oxidation of organic pollutants, which is then used to heat the low-temperature waste gas. Valves allow for periodic changes in the gas flow direction within the RTO, altering the heat absorption and release processes of the heat storage media accordingly, resulting in high heat recovery efficiency. Therefore, RTOs are widely used in waste gas treatment in various industries, including petrochemicals, rubber, pharmaceuticals, synthetic resins, and food processing. RTOs can be categorized by the number of heat storage tanks: two-tank and multi-tank (three or more odd-numbered tanks). Due to the issue of emission concentration peaks, two-tank RTOs are rarely used in practice; multi-tank RTOs have become the mainstream choice for organic waste gas treatment equipment in China.

[0003] Organic waste gas originates from various sources. In some specific industries, such as synthetic resin production, the emitted waste gas contains high-boiling-point or viscous substances. When regenerative thermal oxidizers (RTOs) are used to treat this type of waste gas, these substances can condense or adhere to the pores of the cold zone of the regenerative tank and the bottom regenerator. Over time, this can lead to adverse phenomena such as decreased removal efficiency of the RTO, overheating of the bottom of the regenerator, and increased pressure loss in the regenerator bed. It can even cause fires in the bottom regenerator, seriously affecting the safe operation of the equipment. In response to this situation, the Jiangsu Provincial Emergency Management Department has put forward two requirements in DB32 / T 4700-2024 "Safety Technical Requirements for Regenerative Thermal Incinerator Systems": Article 4.1.6 "Regenerative thermal oxidizers should take effective measures such as heat tracing and regular cleaning to prevent condensation and deposition in the pipelines and the lower chamber of the RTO"; Article 4.1.7 "Effective measures such as filtration should be taken to strictly control the entry of viscous substances containing tar, paint mist, etc." The "lower chamber" mentioned in the standard refers to the "regenerative thermal trough." When such substances are present in the exhaust gas, even with front-end filters, it is impossible to completely prevent them from entering the regenerative thermal incinerator. Companies must then periodically shut down the incinerator for cleaning and switch it to "offline baking" mode.

[0004] The "offline baking" mode of a regenerative thermal oxidizer (RTO) involves closing the exhaust gas inlet valve to cut off the intake of exhaust gas and opening the fresh air valve, using air as the operating medium for the incinerator. The temperature of the regenerative tank is increased by adjusting the valve switching cycle, causing condensed or adhered organic pollutants to volatilize and travel with the air to the oxidation tank, where they are destroyed in the high-temperature environment. Because the intake of exhaust gas must be stopped, the company must halt production or install backup organic waste gas treatment equipment. If the adhesion is severe, the frequency of offline high-temperature baking needs to be increased, severely impacting continuous production. Furthermore, the RTO requires a considerable amount of time to return from an offline state to an online state capable of handling exhaust gas. This significantly increases the company's production and operating costs. Utility Model Content

[0005] To address the increased costs associated with traditional devices in handling condensation or adhesion, this utility model provides an online baking type multi-tank regenerative thermal incineration device, comprising: a regenerative combustion furnace, a first regenerative tank, a second regenerative tank, a third regenerative tank, an outlet pipe, a purge pipe, a waste gas collection valve, a waste gas collection trough, and a chimney. The regenerative combustion furnace is equipped with an oxidation tank; The first, second, and third heat storage tanks are all connected to the oxidation tank. The first heat storage tank is connected to a first inlet valve, a first outlet valve, and a first purge valve. The first inlet valve is suitable for connecting to the exhaust gas outlet. The first outlet valve is connected to the exhaust gas collection valve via the outlet pipe. The first purge valve is connected to the purge valve via the purge pipe. The second heat storage tank is connected to a second inlet valve, a second outlet valve, and a second purge valve. The second inlet valve is suitable for connecting to the exhaust gas outlet. The second outlet valve is connected to the exhaust gas collection valve via the outlet pipe. The second purge valve is connected to the purge valve via the purge pipe. The third heat storage tank is connected to a third inlet valve, a third outlet valve, and a third purge valve. The third inlet valve is suitable for connecting to the exhaust gas outlet. The third outlet valve is connected to the exhaust gas collection valve via the outlet pipe. The third purge valve is connected to the purge valve via the purge pipe. The exhaust gas collection valve is connected to the chimney.

[0006] In one possible implementation, a heater and a purge fan are also included; The first heat storage tank, the second heat storage tank, and the third heat storage tank are arranged in sequence; The heater is mounted on the purge pipe and is located between the third heat storage tank and the waste gas collection valve. The purging fan is mounted on the purging pipe, located between the heater and the exhaust gas collection valve, and the purging direction of the purging fan is towards the first heat storage tank, the second heat storage tank and the third heat storage tank.

[0007] One possible implementation also includes a control terminal; The control terminal is communicatively connected to the first intake valve, the first outlet valve, the first purge valve, the second intake valve, the second outlet valve, the second purge valve, the third intake valve, the third outlet valve, the third purge valve, the heater, the purge fan, and the waste gas collection valve.

[0008] One possible implementation also includes an intake manifold and a system fan; The main intake pipe is suitable for connecting to the exhaust outlet; The first heat storage tank is connected to the main air intake pipe through the first air intake valve, the second heat storage tank is connected to the main air intake pipe through the second air intake valve, and the third heat storage tank is connected to the main air intake pipe through the third air intake valve.

[0009] One possible implementation also includes an exhaust gas collection tank, an exhaust gas collection fan, and an exhaust gas collection pipe; The exhaust gas collection tank is connected to the exhaust gas collection fan and the chimney respectively, and the exhaust gas collection tank is connected to the main air inlet pipe through the exhaust gas collection pipe, and the connection position is located between the system fan and the exhaust gas outlet; The exhaust gas collection fan is installed on the exhaust gas collection pipe.

[0010] In one possible implementation, when the multi-tank regenerative thermal incinerator is in normal operating mode, the first inlet valve is open, the second outlet valve is open, and the third purge valve is open; or the first purge valve is open, the second inlet valve is open, and the third outlet valve is open; or the first outlet valve is open, the second purge valve is open, and the third inlet valve is open.

[0011] When the multi-slot regenerative thermal incinerator is in online baking mode, the exhaust gas collection fan is turned on, the heater is turned on, the first inlet valve is turned on, the second outlet valve is turned on, and the third purge valve is turned on, or the first purge valve is turned on, the second inlet valve is turned on, and the third outlet valve is turned on, or the first outlet valve is turned on, the second purge valve is turned on, and the third inlet valve is turned on.

[0012] In one possible implementation, when the third purge valve is opened, the first intake valve and the second exhaust valve are opened alternately with the second intake valve and the first exhaust valve.

[0013] The advantages of the online baking type multi-tank regenerative thermal incineration device in this application are: it can clean the regenerative tank while treating the waste gas, without the need to shut down the machine or set up a backup organic waste gas treatment device, which is conducive to the continuous production of enterprises and saves construction costs. Moreover, the two modes of the device are easy to switch and easy to operate, which can effectively help enterprises reduce production and operating costs. Specifically, in normal operating mode, the system includes a first, second, and third heat storage tank. One heat storage tank is in an intake state, ingesting and processing exhaust gas; one heat storage tank is in an outlet state, discharging the processed exhaust gas; and one heat storage tank is in a purging state, blowing the exhaust gas remaining in the cold zone of the heat storage tank back to the main intake pipe to prevent leakage to the chimney. In online baking mode, the system includes a first, second, and third heat storage tank. One heat storage tank is in an intake state, ingesting and processing exhaust gas; one heat storage tank is in an outlet state, discharging the processed exhaust gas; and one heat storage tank is in a baking state, where it is baked by a heater and a purging fan. The other two heat storage tanks operate normally, continuously processing the exhaust gas. This allows for cleaning one heat storage tank while simultaneously processing the exhaust gas.

[0014] Other features and aspects of this application will become clear from the following detailed description of exemplary embodiments with reference to the accompanying drawings. Attached Figure Description

[0015] The accompanying drawings, which are included in and form part of this specification, illustrate exemplary embodiments, features, and aspects of this application together with the specification and serve to explain the principles of this application.

[0016] Figure 1 This diagram shows the connection of an online baking-type multi-slot regenerative incinerator according to an embodiment of this application. Detailed Implementation

[0017] Various exemplary embodiments, features, and aspects of this application will now be described in detail with reference to the accompanying drawings. The same reference numerals in the drawings denote elements that have the same or similar functions. Although various aspects of the embodiments are shown in the drawings, they are not necessarily drawn to scale unless specifically indicated otherwise.

[0018] It should be understood that the terms "center", "longitudinal", "lateral", "length", "width", "upper", "lower", "front", "rear", "left", "right", "vertical", "horizontal", "top", "bottom", "inner", "outer", "clockwise", "counterclockwise", "axial", "radial", and "circumferential" indicate the orientation or positional relationship based on the orientation or positional relationship shown in the accompanying drawings. They are only for the convenience of describing this utility model or simplifying the description, and do not indicate or imply that the device or element referred to must have a specific orientation, or be constructed and operated in a specific orientation. Therefore, they should not be construed as limitations on this utility model.

[0019] Furthermore, the terms "first" and "second" are used for descriptive purposes only and should not be construed as indicating or implying relative importance or implicitly specifying the number of technical features indicated. Thus, a feature defined as "first" or "second" may explicitly or implicitly include one or more of that feature. In the description of this utility model, "a plurality of" means two or more, unless otherwise explicitly specified.

[0020] The term “exemplary” as used herein means “serving as an example, embodiment, or illustration.” Any embodiment illustrated herein as “exemplary” is not necessarily to be construed as superior to or better than other embodiments.

[0021] Furthermore, to better illustrate this application, numerous specific details are provided in the following detailed embodiments. Those skilled in the art should understand that this application can be implemented without certain specific details. In some instances, methods, means, components, and circuits well-known to those skilled in the art have not been described in detail in order to highlight the main points of this application.

[0022] like Figure 1As shown, the online baking type multi-tank regenerative thermal incinerator of this application embodiment includes: a regenerative combustion furnace 3, a first regenerative tank 11, a second regenerative tank 15, a third regenerative tank 19, an outlet pipe 30, a purge pipe 31, a waste gas collection valve 6, a waste gas collection trough 7, and a chimney 9. The regenerative combustion furnace 3 is equipped with an oxidation tank 22. The first regenerative tank 11, the second regenerative tank 15, and the third regenerative tank 19 are all connected to the oxidation tank 22. The first regenerative tank 11 is respectively connected to a first inlet valve 10, a first outlet valve 12, and a first purge valve 13. The first inlet valve 10 is suitable for connecting to the waste gas outlet 1. The first outlet valve 12 is connected to the waste gas collection valve 6 through the outlet pipe 30. The first purge valve 13... 3. The second heat storage tank 15 is connected to the second inlet valve 14, the second outlet valve 16, and the second purge valve 17 via the purge pipe 31. The second inlet valve 14 is suitable for connecting to the exhaust gas outlet 1. The second outlet valve 16 is connected to the exhaust gas collection valve 6 via the outlet pipe 30. The second purge valve 17 is connected to the purge valve via the purge pipe 31. The third heat storage tank 19 is connected to the third inlet valve 18, the third outlet valve 20, and the third purge valve 21. The third inlet valve 18 is suitable for connecting to the exhaust gas outlet 1. The third outlet valve 20 is connected to the exhaust gas collection valve 6 via the outlet pipe 30. The third purge valve 21 is connected to the purge valve via the purge pipe 31. The exhaust gas collection valve 6 is connected to the chimney 9.

[0023] In this specific embodiment, the heat storage tank can be cleaned while treating the waste gas, without the need to shut down the machine or set up a backup organic waste gas treatment device. This is beneficial for the company's continuous production and saves construction costs. Moreover, the device is easy to switch between the two modes and is easy to operate, which can effectively help the company reduce production and operating costs. Specifically, in normal operating mode, the system includes a first heat storage tank 11, a second heat storage tank 15, and a third heat storage tank 19. One heat storage tank is in an air intake state, inhaling and processing exhaust gas; one heat storage tank is in an air outlet state, discharging processed exhaust gas; and one heat storage tank is in a purging state, purging the tank opening to prevent exhaust gas remaining in the cold zone of the heat storage tank from being blown back into the main air intake pipe and to prevent leakage to the chimney. In online baking mode, the system includes a first heat storage tank 11, a second heat storage tank 15, and a third heat storage tank 19. One heat storage tank is in an air intake state, inhaling and processing exhaust gas; one heat storage tank is in an air outlet state, discharging processed exhaust gas; and one heat storage tank is in a baking state, where the heater 5 and the purging fan 4 bake the heat storage tank. The other two heat storage tanks operate normally, continuously processing exhaust gas. This allows for cleaning one heat storage tank while simultaneously processing exhaust gas.

[0024] It should be noted that the exhaust gas collection tank is used to collect the exhaust gas remaining in the cold zone of the heat storage tank to prevent it from leaking into the chimney. This exhaust gas is generated when the heat storage tank switches from the air intake state to the air outlet state.

[0025] In one specific embodiment, the system further includes a heater 5 and a purge fan 4. A first heat storage tank 11, a second heat storage tank 15, and a third heat storage tank 19 are arranged sequentially. The heater 5 is mounted on a purge pipe 31, located between the third heat storage tank 19 and the exhaust gas collection valve 6. The purge fan 4 is mounted on the purge pipe 31, located between the heater 5 and the exhaust gas collection valve 6, and the purge direction of the purge fan 4 is towards the first heat storage tank 11, the second heat storage tank 15, and the third heat storage tank 19. The heater 5 provides heat energy, and the purge fan 4 is used to purge the heat energy generated by the heater 5 into the first heat storage tank 11, the second heat storage tank 15, or the third heat storage tank 19 to address any sticky conditions within the heat storage tanks.

[0026] In this specific embodiment, heater 5 preheats the purge air to a temperature of 250-350℃. This temperature needs to be adjusted according to the different components of the pollutants to ensure the effective volatilization of high-boiling-point substances. Purge fan 4 provides directional airflow to enhance the baking effect. Specifically, three heat storage tanks are arranged sequentially. Heater 5 is installed on purge pipe 31, positioned between the third heat storage tank 19 and the exhaust gas collection valve 6. Its function is to heat the purge gas. Purge fan 4 is also on purge pipe 31, located between heater 5 and exhaust gas collection valve 6, and its purge direction is towards the three heat storage tanks. Thus, when the heat storage tanks need to be heated and cleaned, heater 5 can heat the purge gas to a suitable temperature, and then the hot purge gas is blown into the heat storage tanks by purge fan 4. The presence of heater 5 ensures that the purging gas has a higher temperature, which more effectively removes high-boiling-point substances and viscous impurities that may be present in the heat storage tank, preventing these substances from accumulating and affecting equipment performance. The directional airflow provided by the purging fan 4 ensures that the hot purging gas acts evenly on the heat storage tank, improving the cleaning effect. Simultaneously, this setup allows for effective cleaning and maintenance during equipment operation without downtime, greatly improving equipment efficiency and reducing production losses caused by downtime maintenance.

[0027] In one specific embodiment, a control terminal is also included. The control terminal is communicatively connected to the first intake valve 10, the first exhaust valve 12, the first purge valve 13, the second intake valve 14, the second exhaust valve 16, the second purge valve 17, the third intake valve 18, the third exhaust valve 20, the third purge valve 21, the heater 5, the purge fan 4, and the waste gas collection valve 6. The control terminal is used to turn the entire system on and off.

[0028] In this specific embodiment, the control terminal can receive status information from each device and send control commands to these devices according to preset programs or real-time operating data, thereby achieving automated control of the entire incineration unit. The addition of the control terminal makes the operation of the entire unit more intelligent and convenient. Operators no longer need to manually control the opening and closing of each valve and device individually; they only need to make settings on the control terminal. Simultaneously, the control terminal can monitor the operating status of the equipment in real time.

[0029] In one specific embodiment, the system further includes an intake manifold 29 and a system fan 2. The intake manifold 29 is used to connect to the exhaust gas outlet 1. The first heat storage tank 11 is connected to the intake manifold 29 through a first intake valve 10, the second heat storage tank 15 is connected to the intake manifold 29 through a second intake valve 14, and the third heat storage tank 19 is connected to the intake manifold 29 through a third intake valve 18. The intake manifold 29 is used to connect to the exhaust gas outlet 1. The first heat storage tank 11, the second heat storage tank 15, and the third heat storage tank 19 are respectively connected to the intake manifold 29 through their respective intake valves. The system fan 2 provides power for the flow of exhaust gas, transporting the exhaust gas from the exhaust gas outlet 1 through the intake manifold 29 to each heat storage tank.

[0030] In this specific embodiment, the configuration of the main intake pipe 29 allows for a more even distribution of exhaust gas to each heat storage tank, preventing excessive or insufficient intake in any individual tank and ensuring that each tank functions optimally, thus improving overall exhaust gas treatment efficiency. The stable power provided by the system fan 2 ensures that exhaust gas enters the heat storage tank at appropriate flow rates and pressures, facilitating thorough oxidation and decomposition within the oxidation tank 22. Furthermore, this structural design makes the entire exhaust gas intake system more stable and reliable, reducing equipment malfunctions and poor treatment results caused by unstable intake.

[0031] In one specific embodiment, the system further includes an exhaust gas collection tank 7, an exhaust gas collection fan 8, and an exhaust gas collection pipe 32. The exhaust gas collection tank 7 is connected to both the exhaust gas collection fan and the chimney 9, and is connected to the main intake pipe 29 via the exhaust gas collection pipe 32, with the connection point located between the system fan 2 and the exhaust gas outlet 1. The exhaust gas collection fan 8 is mounted on the exhaust gas collection pipe 32. The exhaust gas collection tank 7 is connected to both the exhaust gas collection fan and the chimney 9, and is also connected to the main intake pipe 29 via the exhaust gas collection pipe 32, with the connection point located between the system fan 2 and the exhaust gas outlet 1. The exhaust gas collection fan 8, mounted on the exhaust gas collection pipe 32, serves to recirculate the exhaust gas from the exhaust gas collection tank 7 back to the main intake pipe 29, thus achieving exhaust gas recycling.

[0032] In this specific embodiment, the exhaust gas collection tank 7 is designed to collect incompletely treated exhaust gas generated during the online baking mode, preventing this exhaust gas from being directly emitted into the environment. The cooperation between the exhaust gas collection fan 8 and the exhaust gas collection pipe 32 allows this exhaust gas to re-enter the main intake pipe 29 for further treatment, improving the exhaust gas treatment rate and reducing pollutant emissions. Furthermore, this exhaust gas recycling method can fully utilize the energy in the exhaust gas, reducing energy waste and further lowering the equipment's operating costs.

[0033] In one specific embodiment, referring to Table 1, when the multi-tank regenerative thermal incinerator is in normal operating mode, the first inlet valve 10 is open, the second outlet valve 16 is open and the third purge valve 21 is open, or the first purge valve 13 is open, the second inlet valve 14 is open and the third outlet valve 20 is open, or the first outlet valve 12 is open, the second purge valve 17 is open and the third inlet valve 18 is open.

[0034] Table 1 Referring to Table 2, when the multi-tank regenerative thermal incinerator is in online baking mode, the exhaust gas collection fan 8 is turned on, the heater 5 is turned on, the first inlet valve 10 is turned on, the second outlet valve 16 is turned on and the third purge valve 21 is turned on, or the first purge valve 13 is turned on, the second inlet valve 14 is turned on and the third outlet valve 20 is turned on, or the first outlet valve 12 is turned on, the second purge valve 17 is turned on and the third inlet valve 18 is turned on.

[0035] Table 2 In this specific embodiment, under operating conditions, the three heat storage tanks can alternately perform air intake, exhaust, and purging operations through a periodic valve opening combination, ensuring the continuity of the waste gas treatment process. While air is being intaked, other heat storage tanks can exhaust and purge, improving the overall operating efficiency of the equipment. The purging operation can promptly remove impurities from the heat storage tanks, maintaining their good performance and extending the equipment's service life. Simultaneously, this orderly switching method makes the equipment operation more stable, reducing the probability of malfunctions caused by improper or chaotic operation. Specifically, system fan 2 is running, purging fan 4 is running, waste gas collection fan 8 is off, and heater 5 is off. The waste gas flow direction is as follows: waste gas sequentially passes through system fan 2, main intake pipe 29, first intake valve, first heat storage tank 11, oxidation tank 22, second heat storage tank 15, second exhaust valve, main exhaust pipe, waste gas collection valve 6, and chimney 9. The purge airflow is as follows: a portion of the treated clean flue gas is used as the purge air, which sequentially passes through the purge fan 4, heater 5, purge main pipe, third purge valve 21, third heat storage tank 19, oxidation tank 22, second outlet valve, outlet main pipe, waste gas collection valve 6, and chimney 9. There is no gas in waste gas collection tank 7 and waste gas collection pipe 32. This cycle lasts 1.5-2 minutes, after which the valve states are switched to change the function of each heat storage tank. In this specific embodiment, in the online baking mode, heater 5 and purge fan 4 are turned on, and the three heat storage tanks can alternately perform air intake, air exhaust, and baking operations through a periodic valve opening combination. One heat storage tank can intake air while another can exhaust air, and the third can complete the baking operation, improving the overall operating efficiency of the equipment. In this mode, the heat storage tank in the baking function needs to be maintained at a temperature of 250~350℃ for approximately 60 minutes. This temperature and baking time need to be adjusted according to the different pollutant components. The switching cycle for the remaining two heat storage tanks remains 1.5~2 minutes.

[0036] In Example 1, when the first heat storage tank 11 is an air inlet, the second heat storage tank 15 is an air outlet, and the third heat storage tank 19 is in the baking state, after running for 1.5 to 2 minutes, the first heat storage tank 11 switches to the air outlet, the second heat storage tank 15 switches to the air inlet, and the third heat storage tank 19 is still in the baking state. When the first heat storage tank 11 and the second heat storage tank 15 switch between air inlet and air outlet functions, the waste gas in the first heat storage tank 11 that has not yet entered the oxidation tank 22 will be pushed out by the clean flue gas and reach the main exhaust pipe together with the clean flue gas and be discharged into the chimney 9, thereby causing a peak in pollutant emission concentration. Therefore, the waste gas collection valve 6 will act 1 to 2 seconds before the first heat storage tank 11 and the second heat storage tank 15 switch functions. The valve stem of the waste gas collection valve 6 is lifted upward, the upper valve plate contacts the upper valve seat, and the above-mentioned waste gas is introduced into the waste gas collection tank 7. This process lasts for 2 to 4 seconds. Then the valve stem of the exhaust gas collection valve 6 falls back, the lower valve plate contacts the lower valve seat, and the exhaust gas in the exhaust gas collection tank 7 is sent back to the exhaust gas inlet by the exhaust gas collection fan 8.

[0037] In one specific embodiment, when the third purge valve 21 is opened, the first inlet valve 10 and the second outlet valve 16 open alternately with the second inlet valve 14 and the first outlet valve 12. Thus, in the online baking mode, when one heat storage tank is being baked and cleaned, the inlet and outlet valves of the other two heat storage tanks open and close alternately, so that the heat storage tanks can still complete the treatment of waste gas while being cleaned.

[0038] The various embodiments of this application have been described above. These descriptions are exemplary and not exhaustive, nor are they limited to the disclosed embodiments. Many modifications and variations will be apparent to those skilled in the art without departing from the scope and spirit of the described embodiments. The terminology used herein is chosen to best explain the principles, practical application, or improvement of the technology in the market, or to enable others skilled in the art to understand the embodiments disclosed herein.

Claims

1. An online baking-type multi-tank regenerative thermal incinerator, characterized in that, include: Regenerative combustion furnace, first regenerative tank, second regenerative tank, third regenerative tank, exhaust pipe, purge pipe, exhaust gas collection valve, exhaust gas collection tank and chimney; The regenerative combustion furnace is equipped with an oxidation tank; The first, second, and third heat storage tanks are all connected to the oxidation tank. The first heat storage tank is connected to a first inlet valve, a first outlet valve, and a first purge valve. The first inlet valve is suitable for connecting to the exhaust gas outlet. The first outlet valve is connected to the exhaust gas collection valve via the outlet pipe. The first purge valve is connected to the purge valve via the purge pipe. The second heat storage tank is connected to a second inlet valve, a second outlet valve, and a second purge valve. The second inlet valve is suitable for connecting to the exhaust gas outlet. The second outlet valve is connected to the exhaust gas collection valve via the outlet pipe. The second purge valve is connected to the purge valve via the purge pipe. The third heat storage tank is connected to a third inlet valve, a third outlet valve, and a third purge valve. The third inlet valve is suitable for connecting to the exhaust gas outlet. The third outlet valve is connected to the exhaust gas collection valve via the outlet pipe. The third purge valve is connected to the purge valve via the purge pipe. The exhaust gas collection valve is connected to the chimney.

2. The online baking type multi-tank regenerative thermal incinerator according to claim 1, characterized in that, It also includes heaters and purge blowers; The first heat storage tank, the second heat storage tank, and the third heat storage tank are arranged in sequence; The heater is mounted on the purge pipe and is located between the third heat storage tank and the waste gas collection valve. The purging fan is mounted on the purging pipe, located between the heater and the exhaust gas collection valve, and the purging direction of the purging fan is towards the first heat storage tank, the second heat storage tank and the third heat storage tank.

3. The online baking type multi-tank regenerative thermal incinerator according to claim 2, characterized in that, It also includes the control terminal; The control terminal is communicatively connected to the first intake valve, the first outlet valve, the first purge valve, the second intake valve, the second outlet valve, the second purge valve, the third intake valve, the third outlet valve, the third purge valve, the heater, the purge fan, and the waste gas collection valve.

4. The online baking type multi-tank regenerative thermal incinerator according to claim 3, characterized in that, It also includes the intake manifold and system fan; The main intake pipe is suitable for connecting to the exhaust outlet; The first heat storage tank is connected to the main air intake pipe through the first air intake valve, the second heat storage tank is connected to the main air intake pipe through the second air intake valve, and the third heat storage tank is connected to the main air intake pipe through the third air intake valve.

5. The online baking type multi-tank regenerative thermal incinerator according to claim 4, characterized in that, It also includes an exhaust gas collection tank, an exhaust gas collection fan, and an exhaust gas collection pipe; The exhaust gas collection tank is connected to the exhaust gas collection fan and the chimney respectively, and the exhaust gas collection tank is connected to the main air inlet pipe through the exhaust gas collection pipe, and the connection position is located between the system fan and the exhaust gas outlet; The exhaust gas collection fan is installed on the exhaust gas collection pipe.

6. The online baking type multi-tank regenerative thermal incinerator according to claim 5, characterized in that, When the multi-slot regenerative thermal incinerator is in normal operating mode, the first inlet valve is open, the second outlet valve is open, and the third purge valve is open; or the first purge valve is open, the second inlet valve is open, and the third outlet valve is open; or the first outlet valve is open, the second purge valve is open, and the third inlet valve is open.

7. The online baking type multi-tank regenerative thermal incinerator according to claim 5, characterized in that, When the multi-slot regenerative thermal incinerator is in online baking mode, the exhaust gas collection fan is turned on, the heater is turned on, the first inlet valve is turned on, the second outlet valve is turned on, and the third purge valve is turned on, or the first purge valve is turned on, the second inlet valve is turned on, and the third outlet valve is turned on, or the first outlet valve is turned on, the second purge valve is turned on, and the third inlet valve is turned on.

8. The online baking type multi-tank regenerative thermal incinerator according to claim 7, characterized in that, When the third purge valve is opened, the first intake valve and the second exhaust valve open alternately with the second intake valve and the first exhaust valve.

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