A self-regulating water-saving purification tower for incinerator

Abstract

The present invention relates to the technical field of flue gas purification, in particular to a self-regulating water-saving purification tower for an incinerator, comprising a water tower and an air tower, wherein the water tower is located below the air tower and is interconnected with the air tower, the water tower is filled with a purification liquid, and the waste gas generated after the incinerator is incinerated is introduced into the air tower, an inner liner is arranged in the air tower, and the inner liner divides the internal cavity of the air tower into a main cavity and a secondary cavity, the volume of the main cavity is greater than the volume of the secondary cavity, an air inlet pipe is also arranged in the air tower, the air inlet pipe is respectively connected with the main cavity and the secondary cavity, one end of the air inlet pipe is connected with the waste gas discharged from the incinerator, a particle detection device and a three-way solenoid valve are arranged on the air inlet pipe, the particle detection device is electrically connected to the three-way solenoid valve, and the three-way solenoid valve can make the air inlet pipe be respectively connected with one of the main cavity and the secondary cavity, and can also make the air inlet pipe be simultaneously connected with the main cavity and the secondary cavity.

Description

Technical Field

[0001] The invention relates to the technical field of flue gas purification, in particular to a self-regulating water-saving purification tower for an incinerator. Background Art

[0002] Incinerators are often used in waste treatment systems to reduce pollutant emissions. This type of equipment usually needs to combine the functions of an incinerator and a water purification tower, which can remove particulate matter and harmful gases in the flue gas through water spray and other methods during the incineration process to purify the emitted flue gas. The treatment process used by the purification tower of the incinerator is usually a multi-stage washing tower in series, such as acid / alkaline washing + tail gas condensation. On the one hand, it is used to balance the acidity and alkalinity of the flue gas to achieve the requirements of neutral emissions. On the other hand, it reduces the water content in the flue gas through condensation, reduces the total amount of flue gas emissions and performs whitening treatment. For example, Chinese patent CN216047708U discloses a double-chamber flue gas scrubbing and purification tower for a hazardous waste incineration treatment system, including an upper chamber scrubbing tower and a lower chamber scrubbing tower, the upper chamber scrubbing tower and the lower chamber scrubbing tower are connected in series; the upper chamber scrubbing tower and the lower chamber scrubbing tower respectively include a circulating liquid area, a flue gas area, a filler area, a cleaning area and a flue gas channel from bottom to top; the circulating liquid area is provided with a circulating spray liquid outlet and an external interface; the flue gas area is provided with a supplementary liquid inlet and an input port; the cleaning area is provided with a circulating spray liquid inlet, a demister cleaning port and a demister; the flue gas channel is provided with an output port. The above patent combines two separate primary scrubbing towers into one by adopting an upper and lower chamber method, thereby reducing the floor space and the operating cost of the system equipment. However, the concentration of harmful gases and the content of particulate matter generated by each incineration in the incinerator are different. Spraying each time is likely to cause a large amount of spray liquid to be wasted, affecting production costs.

[0003] Therefore, it is necessary for those skilled in the art to provide a self-regulating water-saving purification tower for an incinerator, which can provide targeted spraying for harmful gases of different components and weights, reduce the waste of spraying liquid, and reduce costs. Summary of the invention

[0004] The purpose of the present invention is to provide a self-regulating water-saving purification tower for an incinerator to solve the technical problem in the prior art that the harmful gases generated by the incinerator each time are of different types and weights, and each spraying easily leads to a large amount of spray liquid being wasted, affecting the production cost.

[0005] The technical solution adopted by the present invention to solve its technical problem is: a self-regulating water-saving purification tower for an incinerator, comprising a water tower and an air tower, the water tower is located below the air tower and is interconnected with the air tower, the water tower is filled with a purification liquid, the waste gas generated after the incinerator is incinerated is introduced into the air tower, an inner liner is provided in the air tower, the inner liner divides the internal cavity of the air tower into a main cavity and a secondary cavity, the volume of the main cavity is greater than the volume of the secondary cavity, an air inlet pipe is also provided in the air tower, one end of the air inlet pipe is connected to the incinerator The exhaust gas discharged from the furnace is provided with a particle detection device and a three-way solenoid valve on the intake pipe. The particle detection device is used to detect the particle size of the exhaust gas in the intake pipe. The particle detection device is electrically connected to the three-way solenoid valve. The three-way solenoid valve connects the intake pipe with the main cavity and / or the auxiliary cavity respectively. A main nozzle is provided at the top in the main cavity, and an auxiliary nozzle is provided at the top in the auxiliary cavity. The main nozzle and the auxiliary nozzle are connected to a water tower, and the main nozzle and the auxiliary nozzle suck and spray the purified liquid in the water tower.

[0006] Furthermore, an air filter layer is provided inside the air tower, which is horizontally arranged in the internal cavity of the air tower and divides the internal cavity of the air tower into an upper cavity and a lower cavity. The inner liner is arranged in the lower cavity, and a sealing plate is provided in the upper cavity above the air filter layer.

[0007] Furthermore, the inner tank is in a cylindrical structure, the top of the inner tank abuts against the air filter layer, and a gap is left between the bottom of the inner tank and the water tower, and the gap is connected to the main cavity and the auxiliary cavity respectively.

[0008] Furthermore, the three-way solenoid valve is provided with an air inlet and two air outlets, one air outlet on the three-way solenoid valve is connected to the secondary cavity, the other air outlet on the three-way solenoid valve is connected to the main cavity, and the air inlet of the main cavity is connected to one end of the air inlet pipe close to the incinerator.

[0009] Furthermore, a sealing plate is arranged above the air filter layer. The sealing plate has two layers and can slide relatively. A plurality of ventilation holes are arranged on the sealing plate. The ventilation holes penetrate the double-layer structure of the sealing plate. The ventilation holes on one sealing plate can be interconnected with the ventilation holes on another sealing plate.

[0010] Furthermore, the water tower is a square shell structure with a hollow interior, and a drain port is provided on the top surface of the water tower. The drain port penetrates the wall of the water tower and is connected to the internal cavity of the water tower, and the drain port is connected to the main cavity and the secondary cavity.

[0011] Furthermore, a drainage pipe is provided on the inner top wall of the water tower at the drainage port, and the drainage pipe extends downward from the top wall of the water tower. A liquid filter layer is provided on the bottom wall of the water tower, and the liquid filter layer is located between the drainage pipe and the side wall of the water tower. A filtrate cavity is also formed between the liquid filter layer and the inner wall of the water tower.

[0012] Furthermore, a first infusion tube and a second infusion tube are provided between the water tower and the gas tower, one end of the first infusion tube and the second infusion tube penetrates the wall of the water tower and extends into the filtrate cavity, and the other end of the first infusion tube and the second infusion tube penetrates the wall of the gas tower and extends to the lower cavity.

[0013] Furthermore, the main nozzle is connected to the second infusion tube, the auxiliary nozzle is connected to the first infusion tube, and water pumps are respectively provided at the ends of the first infusion tube and the second infusion tube located in the filtrate cavity.

[0014] Furthermore, the gas tower is a cylindrical structure with a hollow interior, and an exhaust port is provided at the top of the gas tower. The exhaust port penetrates the wall of the gas tower and is connected to the internal cavity.

[0015] The beneficial effects of the present invention are as follows: the present invention provides processing cavities of different sizes for different waste gas treatments, thereby reducing the waste of resources such as space and purification liquid, and by setting a three-way solenoid valve to connect processing cavities of different volumes, a processing cavity of appropriate volume is provided for waste gases of different concentrations, so that the waste gas can fill the processing cavity in which it is located, thereby ensuring the sufficiency and stability of the reaction between the purification liquid and the waste gas, reducing resource waste and improving the use effect. BRIEF DESCRIPTION OF THE DRAWINGS

[0016] Figure 1 It is a three-dimensional diagram of the self-regulating water-saving purification tower for the incinerator of the present invention.

[0017] Figure 2 It is a top view of the self-regulating water-saving purification tower for the incinerator of the present invention.

[0018] Figure 3 yes Figure 2 Section view along AA.

[0019] Figure 4 yes Figure 2 Cross-sectional view along BB (3D state).

[0020] The markings of the components in the accompanying drawings are as follows: 10, water tower; 11, drain port; 12, drain pipe; 13, liquid filter layer; 14, first infusion pipe; 15, second infusion pipe; 16, filtrate cavity; 17, main nozzle; 18, auxiliary nozzle; 19, cleaning nozzle; 20, gas tower; 21, liner; 22, upper cavity; 23, lower cavity; 231, main cavity; 232, auxiliary cavity; 24, gap; 25, air inlet pipe; 26, three-way solenoid valve; 28, exhaust port; 29, air filter layer; 30, sealing plate; 31, particle detection device. DETAILED DESCRIPTION

[0021] The present invention will now be described in detail with reference to the accompanying drawings. This figure is a simplified schematic diagram, which only illustrates the basic structure of the present invention in a schematic manner, and therefore only shows the components related to the present invention.

[0022] See also Figure 1 The present invention provides a self-regulating water-saving purification tower for an incinerator, comprising a water tower 10 and a gas tower 20. The water tower 10 is located below the gas tower 20 and is interconnected with the gas tower 20. The water tower 10 is filled with a purification liquid, which includes but is not limited to lime milk and alkali solution. The gas tower 20 is connected to an incinerator (not shown in the figure). The waste gas generated after the incinerator is incinerated is introduced into the gas tower 20. The waste gas includes substances such as sulfur dioxide, nitrogen oxides and heavy metals. The purification liquid in the water tower 10 is used to neutralize and purify the waste gas in the gas tower 20, reduce harmful and toxic gases, and ensure the safety of gas discharge.

[0023] For further information, see Figure 2 , Figure 3 The gas tower 20 is a cylindrical structure with a hollow interior, and an air filter layer 29 is provided inside the gas tower 20. The air filter layer 29 is horizontally arranged in the internal cavity of the gas tower 20 and divides the internal cavity of the gas tower 20 into an upper cavity 22 and a lower cavity 23. An exhaust port 28 is provided at the top of the gas tower 20, and the exhaust port 28 penetrates the wall of the gas tower 20 and communicates with the upper cavity 22. Preferably, the air filter layer 29 is made of an activated carbon filter.

[0024] When in use, the waste gas is introduced into the lower cavity 23 and is neutralized and purified in the lower cavity 23. The treated gas passes through the air filter layer 29 and enters the upper cavity 22 and is discharged from the exhaust port 28 to complete the exhaust. The air filter layer 29 made of an activated carbon filter screen blocks and filters out particulate matter in the waste gas, so that the waste gas can be retained in the lower cavity 23 for a long time, which is convenient for subsequent purification processes and ensures the safety of gas discharge.

[0025] In the present embodiment, a sealing plate 30 is further provided in the upper cavity 22 above the air filter layer 29. The sealing plate 30 has two layers and can slide relative to each other. A plurality of ventilation holes (not shown) are provided on the sealing plate 30. The ventilation holes penetrate the double-layer structure of the sealing plate 30. When the two layers of the sealing plates 30 move relative to each other, the ventilation holes on one layer of the sealing plate 30 are interlaced with the ventilation holes on the other layer of the sealing plate 30, so that the gas in the lower cavity 23 cannot pass through the sealing plate 30 to enter the upper cavity 22. When the two layers of the sealing plates 30 move relative to each other and reset, the ventilation holes on one layer of the sealing plate 30 are interconnected with the ventilation holes on the other layer of the sealing plate 30, so that the gas in the lower cavity 23 can enter the upper cavity 22 through the ventilation holes on the sealing plate 30 to achieve exhaust.

[0026] In order to ensure that the exhaust gas in the lower cavity 23 can be fully purified, the present invention sets a sealing plate 30 above the air filter layer 29, and the exhaust gas is continuously introduced into the lower cavity 23. In order to ensure the stability of the equipment operation, the sealing plate 30 needs to be always in an open state. At the same time, in order to ensure the adequacy of purification, the present invention controls the gas passage speed by changing the size of the vent holes on the sealing plate 30, and then controls the exhaust gas purification time, thereby ensuring the adequacy and stability of purification.

[0027] See also Figure 3 , Figure 4 An inner liner 21 is disposed in the lower cavity 23 of the air tower 20 . The inner liner 21 is in a cylindrical structure. The top of the inner liner 21 abuts against the air filter layer 29 , and a gap 24 is left between the bottom of the inner liner 21 and the water tower 10 .

[0028] Furthermore, the inner liner 21 divides the lower cavity 23 into a main cavity 231 and a secondary cavity 232, and the volume of the main cavity 231 is greater than the volume of the secondary cavity 232. An air inlet pipe 25 is provided on the side wall of the inner liner 21, one end of the air inlet pipe 25 passes through the side wall of the inner liner 21 and is connected to the main cavity 231, and the other end of the air inlet pipe 25 passes through the wall of the gas tower 20 and extends outward, and the end of the air inlet pipe 25 located outside the gas tower 20 is connected to the exhaust pipe of the incinerator.

[0029] A three-way solenoid valve 26 is provided on the air inlet pipe 25. The three-way solenoid valve 26 is provided with an air inlet and two air outlets. One air outlet on the three-way solenoid valve 26 is connected to the secondary cavity 232, and the other air outlet on the three-way solenoid valve 26 is connected to the main cavity 231. The air inlet of the main cavity 231 is connected to one end of the air inlet pipe 25 close to the incinerator.

[0030] The present invention uses the air inlet on the three-way solenoid valve 26 to control the blocking between the air inlet pipe 25 and the main cavity 231 or / and the auxiliary cavity 232. When in use, the exhaust gas generated after combustion in the incinerator passes through the exhaust pipe and the air inlet pipe 25 of the incinerator and enters the gas tower 20 to ensure the exhaust gas. By setting a double-layer structure in the incinerator, the inner liner 21 is used to effectively isolate high-temperature conduction, thereby improving the safety of equipment use. At the same time, the inner liner 21 allows the smoke to be gathered in the inner liner 21 for purification. Compared with the method of changing the spray flow rate for purification in the prior art, the present invention effectively improves the concentration and efficiency of purification.

[0031] In this embodiment, the three-way solenoid valve 26 is arranged on the tube body of the secondary cavity 232 on the intake pipe 25. The three-way solenoid valve 26 is a common three-way solenoid valve for water, gas and oil on the market. The three-way solenoid valve 26 can connect the intake pipe 25 with one of the main cavity 231 and the secondary cavity 232 respectively, and can also connect the intake pipe 25 with the main cavity 231 and the secondary cavity 232 at the same time. When in use, the exhaust gas in the intake pipe 25 is passed into the main cavity 231 or the secondary cavity 232 as needed, thereby realizing the diversion of the exhaust gas.

[0032] The air intake pipe 25 is further provided with a particle detection device 31 on the pipe body outside the gas tower 20, and the particle detection device 31 is electrically connected to the three-way solenoid valve 26. The particle detection device 31 is a common laser particle detector on the market, and the particle detection device 31 is used to detect the particle content, concentration and flow rate of the exhaust gas in the air intake pipe 25. When the exhaust gas flow rate in the intake pipe 25 is slow and the particulate matter is small, the three-way solenoid valve 26 should be started to connect the intake pipe 25 with the auxiliary cavity 232. The volume of the auxiliary cavity 232 is small and suitable for treating less exhaust gas; when the exhaust gas flow rate in the intake pipe 25 is fast and the particulate matter is large, the three-way solenoid valve 26 should be started to connect the intake pipe 25 with the main cavity 231. The volume of the main cavity 231 is larger than the auxiliary cavity 232, which is suitable for treating more exhaust gas; when the exhaust gas flow rate in the intake pipe 25 is extremely fast and the particulate matter is extremely large, the three-way solenoid valve 26 should be started to connect the intake pipe 25 with the main cavity 231 and the auxiliary cavity 232 at the same time, thereby providing sufficient processing space for exhaust gas treatment and ensuring the stability of treatment.

[0033] In another embodiment, the air intake pipe 25 is provided with two and respectively connects the main cavity 231 and the secondary cavity 232. A particle detection device 31 and a three-way solenoid valve 26 are provided on one air intake pipe 25, so as to ensure stable and accurate diversion of the exhaust gas and ensure the accuracy of the processing.

[0034] The present invention provides processing cavities of different sizes for different waste gas treatments, thereby reducing the waste of space, purification liquid and other resources. In the prior art, the purification liquid is usually sprayed and filled into the processing cavity in an atomized spray manner, that is, no matter how much waste gas is in the processing cavity, the purification liquid needs to be atomized and fill the entire processing cavity to ensure the adequacy of purification; at the same time, the waste gas needs to be discharged immediately after treatment, which requires ensuring a suitable ratio between the incoming waste gas and the discharged air to ensure that there is always a sufficient amount of purification liquid in the processing cavity to react, thereby ensuring the stability of the treatment.

[0035] However, different waste gases have different particle contents and concentrations, and a large-scale spraying will cause a large amount of purification liquid to be wasted without reaction. The present invention connects processing cavities of different volumes by setting a three-way solenoid valve 26, and provides a processing cavity of appropriate volume for waste gases of different concentrations, so that the waste gas can fill the processing cavity where it is as much as possible, thereby ensuring the sufficiency and stability of the reaction between the purification liquid and the waste gas, reducing resource waste, and improving the use effect.

[0036] Please refer again Figure 3 , Figure 4 The water tower 10 is a square shell structure with a hollow interior. A drain port 11 is provided on the top surface of the water tower 10 . The drain port 11 penetrates the wall of the water tower 10 and is connected to the internal cavity of the water tower 10 . The drain port 11 is also connected to the main cavity 231 and the secondary cavity 232 .

[0037] A drainage pipe 12 is provided on the inner top wall of the water tower 10 at the drainage port 11, and the drainage pipe 12 extends downward from the top wall of the water tower 10. A liquid filter layer 13 is provided on the bottom wall of the water tower 10, and the liquid filter layer 13 is located between the drainage pipe 12 and the side wall of the water tower 10. A filtrate cavity 16 is also formed between the liquid filter layer 13 and the inner side wall of the water tower 10. The liquid filter layer 13 is made of biochemical cotton filter material.

[0038] When in use, the purified liquid flows from the gas tower 20 into the water tower 10, passes through the drain port 11 and the drain pipe 12 in sequence, and finally accumulates at the bottom of the water tower 10. The purified liquid is filtered through the liquid filter layer 13 to obtain a filtrate, and the filtrate enters the filtrate cavity 16 through the liquid filter layer 13.

[0039] In this embodiment, the drain port 11 is arranged at the top of the water tower 10 and faces the main cavity 231. The purified liquid in the main cavity 231 flows into the drain port 11. The gap 24 formed between the inner tank 21 and the water tower 10 connects the main cavity 231 and the secondary cavity 232 respectively. At the same time, the drain port 11 is connected to the drain pipe 12. In this way, the purified liquid in the secondary cavity 232 flows from the gap 24 into the main cavity 231 and then into the drain port 11. The present invention ensures the stability of the drainage by setting a single drainage channel, reduces unnecessary channels, and prevents blockage. At the same time, the purified liquid in the secondary cavity 232 and the purified liquid in the main cavity 231 are discharged through the same drain port 11, so that the drainage operation is more standardized and orderly, the complexity of the equipment is reduced, and the use effect is improved.

[0040] In another embodiment, the top of the inner liner 21 abuts against the air filter layer 29, and the bottom of the inner liner 21 abuts against the top of the water tower 10. The drain port 11 is provided with multiple ones, and they are respectively connected to the main cavity 231 and the auxiliary cavity 232. The drain port 11 is connected to the drain pipe 12. Different drainage channels are provided for different drainage amounts to ensure the stability of drainage.

[0041] See also Figure 3 A first infusion pipe 14 and a second infusion pipe 15 are provided between the water tower 10 and the gas tower 20. One end of the first infusion pipe 14 and the second infusion pipe 15 penetrates the wall of the water tower 10 and extends into the filtrate cavity 16, and the other end of the first infusion pipe 14 and the second infusion pipe 15 penetrates the wall of the gas tower 20 and extends into the lower cavity 23.

[0042] In this embodiment, a main nozzle 17 is provided at the top of the main cavity 231 , and a secondary nozzle 18 is provided at the top of the secondary cavity 232 . The main nozzle 17 is connected to the second infusion tube 15 , and the secondary nozzle 18 is connected to the first infusion tube 14 .

[0043] The ends of the first infusion tube 14 and the second infusion tube 15 in the filtrate cavity 16 are respectively provided with water pumps (not shown in the figure), and the filtrate in the filtrate cavity 16 is respectively passed from the first infusion tube 14 and the second infusion tube 15 to the auxiliary nozzle 18 and the main nozzle 17 by the water pump, so as to realize the feeding and spraying of the purified liquid. The present invention realizes the reuse of the purified liquid by filtering the purified liquid after purification, thereby reducing the use of supplementary liquid, improving resource utilization rate, and realizing water saving.

[0044] In this embodiment, a cleaning nozzle 19 is further provided in the filtrate cavity 16. A plurality of cleaning nozzles 19 are provided and face the liquid filter layer 13. The cleaning nozzles 19 are installed on a water pump (not shown in the figure). The filtrate is passed into the cleaning nozzle 19 and sprayed out by the water pump, so as to spray and flush the liquid filter layer 13, and then discharge the solid particles adsorbed in the liquid filter layer 13. A slag discharge port (not shown in the figure) is also provided at the bottom of the water tower 10 to discharge the solid particles filtered by the liquid filter layer 13 in the water tower 10, so as to ensure the stability and continuity of use.

[0045] The specific operation method of the present invention is: the exhaust gas in the incinerator is introduced into the gas tower 20, and the exhaust gas is detected by the particle detection device 31. When the exhaust gas flow rate in the intake pipe 25 is slow and the particulate matter is small, the three-way solenoid valve 26 is started to connect the intake pipe 25 with the auxiliary cavity 232. When the exhaust gas flow rate in the intake pipe 25 is fast and the particulate matter is large, the three-way solenoid valve 26 is started to connect the intake pipe 25 with the main cavity 231. When the exhaust gas flow rate in the intake pipe 25 is extremely fast and the particulate matter is extremely large, the three-way solenoid valve 26 is started to connect the intake pipe 25 with the main cavity 231 and the auxiliary cavity 232 at the same time. The purified liquid flows into the water tower 10 from the drain port 11, and finally flows into the filtrate cavity 16 after filtration. The filtrate in the filtrate cavity 16 is respectively passed from the first infusion pipe 14 and the second infusion pipe 15 to the auxiliary nozzle 18 and the main nozzle 17 by the water pump to realize the feeding and spraying of the purified liquid.

[0046] The present invention provides processing cavities of different sizes for different waste gas treatments, thereby reducing the waste of resources such as space and purification liquid. By setting a three-way solenoid valve 26 to connect processing cavities of different volumes, a processing cavity of appropriate volume is provided for waste gases of different concentrations, so that the waste gas can fill the processing cavity where it is located, thereby ensuring the sufficiency and stability of the reaction between the purification liquid and the waste gas, reducing resource waste and improving the use effect.

[0047] It is to be understood that the present invention is described by some embodiments, and it is known to those skilled in the art that various changes or equivalent substitutions may be made to these features and embodiments without departing from the spirit and scope of the present invention. In addition, under the teachings of the present invention, these features and embodiments may be modified to adapt to specific circumstances and materials without departing from the spirit and scope of the present invention. Therefore, the present invention is not limited by the specific embodiments disclosed herein, and all embodiments falling within the scope of the claims of this application are within the scope of protection of the present invention.

Claims

1. A self-regulating water-saving purification tower for an incinerator, comprising a water tower (10) and a gas tower (20), wherein the water tower (10) is located below the gas tower (20) and is interconnected with the gas tower (20), the water tower (10) is filled with a purification liquid, and the waste gas generated after incineration in the incinerator is introduced into the gas tower (20), characterized in that: The gas tower (20) is provided with an inner liner (21), the inner liner (21) divides the internal cavity of the gas tower (20) into a main cavity (231) and a secondary cavity (232), the volume of the main cavity (231) is greater than the volume of the secondary cavity (232), the gas tower (20) is also provided with an air intake pipe (25), one end of the air intake pipe (25) is connected to the waste gas discharged from the incinerator, and the air intake pipe (25) is provided with a particle detection device (31) and a three-way solenoid valve (26), the particle detection device (31) is used to detect the waste gas particles in the air intake pipe (25). The particle size and particle detection device (31) is electrically connected to the three-way solenoid valve (26). The three-way solenoid valve (26) connects the air intake pipe (25) to the main cavity (231) and / or the auxiliary cavity (232). A main nozzle (17) is provided at the top of the main cavity (231). A auxiliary nozzle (18) is provided at the top of the auxiliary cavity (232). The main nozzle (17) and the auxiliary nozzle (18) are connected to the water tower (10). The main nozzle (17) and the auxiliary nozzle (18) suck and spray the purified liquid in the water tower (10).

2. The self-regulating water-saving purification tower for an incinerator according to claim 1 is characterized in that: An air filter layer (29) is provided inside the air tower (20). The air filter layer (29) is horizontally arranged in the internal cavity of the air tower (20) and divides the internal cavity of the air tower (20) into an upper cavity (22) and a lower cavity (23). The inner liner (21) is arranged in the lower cavity (23). A sealing plate (30) is provided above the air filter layer (29) and in the upper cavity (22).

3. The self-regulating water-saving purification tower for an incinerator according to claim 2 is characterized in that: The inner liner (21) is in a cylindrical structure, the top of the inner liner (21) abuts against the air filter layer (29), a gap (24) is left between the bottom of the inner liner (21) and the water tower (10), and the gap (24) is connected to the main cavity (231) and the secondary cavity (232) respectively.

4. The self-regulating water-saving purification tower for an incinerator according to claim 1 is characterized in that: The three-way solenoid valve (26) is provided with an air inlet and two air outlets, one of the air outlets on the three-way solenoid valve (26) is connected to the secondary cavity (232), the other air outlet on the three-way solenoid valve (26) is connected to the main cavity (231), and the air inlet of the main cavity (231) is connected to one end of the air inlet pipe (25) close to the incinerator.

5. The self-regulating water-saving purification tower for an incinerator according to claim 2, characterized in that: A sealing plate (30) is arranged above the air filter layer (29). The sealing plate (30) has two layers and can slide relative to each other. The sealing plate (30) is provided with a plurality of ventilation holes. The ventilation holes penetrate the double-layer structure of the sealing plate (30). The ventilation holes on one sealing plate (30) can be communicated with the ventilation holes on another sealing plate (30).

6. The self-regulating water-saving purification tower for an incinerator according to claim 1, characterized in that: The water tower (10) is in the form of a square shell structure with a hollow interior. A drainage port (11) is provided on the top surface of the water tower (10). The drainage port (11) penetrates the wall of the water tower (10) and is connected to the internal cavity of the water tower (10). The drainage port (11) is connected to the main cavity (231) and the secondary cavity (232).

7. The self-regulating water-saving purification tower for an incinerator according to claim 6, characterized in that: A liquid discharge pipe (12) is provided on the inner top wall of the water tower (10) at the liquid discharge port (11). The liquid discharge pipe (12) extends downward from the top wall of the water tower (10). A liquid filter layer (13) is provided on the bottom wall of the water tower (10). The liquid filter layer (13) is located between the liquid discharge pipe (12) and the side wall of the water tower (10). A filtrate cavity (16) is also formed between the liquid filter layer (13) and the inner side wall of the water tower (10).

8. The self-regulating water-saving purification tower for an incinerator according to claim 7, characterized in that: A first liquid infusion tube (14) and a second liquid infusion tube (15) are provided between the water tower (10) and the gas tower (20); one end of the first liquid infusion tube (14) and the second liquid infusion tube (15) penetrates the wall of the water tower (10) and extends into the filtrate cavity (16); the other end of the first liquid infusion tube (14) and the second liquid infusion tube (15) penetrates the wall of the gas tower (20) and extends into the lower cavity (23).

9. The self-regulating water-saving purification tower for an incinerator according to claim 8, characterized in that: The main nozzle (17) is connected to the second liquid infusion tube (15), and the auxiliary nozzle (18) is connected to the first liquid infusion tube (14). Water pumps are respectively provided at the ends of the first liquid infusion tube (14) and the second liquid infusion tube (15) located in the filtrate cavity (16).

10. The self-regulating water-saving purification tower for an incinerator according to claim 1, characterized in that: The gas tower (20) is in the form of a cylindrical structure with a hollow interior. An exhaust port (28) is provided at the top of the gas tower (20). The exhaust port (28) penetrates the wall of the gas tower (20) and is connected to the internal cavity.

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