PP tail gas absorption tower

Abstract

The utility model discloses a PP tail gas absorption tower which comprises a tower body and a fan, the tower body is respectively provided with a gas inlet and a gas outlet, the gas inlet of the tower body is provided with a gas inlet pipe, the gas outlet of the tower body is provided with a gas outlet pipe, one end of the gas outlet pipe is connected with the air inlet end of the fan, the tower body is internally provided with a filter cartridge, and the filter cartridge is connected with the air inlet end of the fan. The tower body is provided with a cleaning mechanism for cleaning dirt at a filtering position in the filter cartridge, the cleaning mechanism comprises a blow-off pipe, a flushing end and a shell, the shell is arranged outside the tower body, and the flushing end is arranged in the tower body and located below the filter cartridge. According to the tail gas purification tower, the filter cartridge is arranged, so that the reacted absorption liquid is filtered by the filter cartridge in the process of falling into the inner bottom of the tower body, and particles and impurities are intercepted by the filter cartridge, so that the filtered absorption liquid can be recycled more effectively, and the tail gas purification efficiency is improved.

Description

Technical Field

[0001] This utility model relates to the field of exhaust gas absorption tower technology, specifically a PP exhaust gas absorption tower. Background Technology

[0002] A PP tail gas absorption tower, also known as a polypropylene tail gas absorption tower, is a tower-shaped device made of polypropylene (PP) material. It is mainly used to absorb and purify harmful substances in tail gases generated during industrial production processes. Through physical or chemical methods, pollutants are brought into contact with solvents, causing transformation, decomposition, or adsorption processes, thereby effectively removing harmful components from the waste gas to meet environmental emission standards.

[0003] Existing patent document CN220424984U discloses a tail gas absorption tower, the protected claim of which "includes a base, an absorption tower body, and an exchange liquid storage tank. The absorption tower body is fixedly installed on the top of the base, and an air inlet pipe is fixedly connected to one side of the bottom of the absorption tower body. An air inlet fan is installed inside the air inlet pipe, and a protective cover is fixedly installed at one end of the air inlet pipe. An exchange liquid storage tank is located on one side of the absorption tower body, and a water pump is fixedly installed on the top of the exchange liquid storage tank. A liquid outlet pipe is fixedly installed on the top of the water pump, and the other end of the liquid outlet pipe penetrates one side of the absorption tower body and extends into the interior of the absorption tower body. An exhaust pipe is fixedly installed on one side of the top of the absorption tower body." This utility model can make the exchange liquid spray more even, allowing the tail gas to fully react with the exchange liquid, effectively preventing insufficient reaction between the exchange liquid and the tail gas, which would cause pollution to the environment.

[0004] However, the exhaust gas absorption towers described in the aforementioned publicly available literature primarily focus on ensuring more uniform spraying of the exchange liquid, allowing the exhaust gas to fully react with the exchange liquid and effectively preventing insufficient reaction between the exchange liquid and the exhaust gas, which could lead to environmental pollution from the discharged exhaust gas. They do not consider the common method used in exhaust gas absorption towers, which primarily involves spraying a solution to ensure full contact with the exhaust gas, allowing it to react with and absorb the harmful gases, thereby achieving the effect of removing harmful gases from the exhaust gas. However, during the exhaust gas cleaning process, solid impurities in the exhaust gas may mix with the solution and precipitate inside the tower, thus affecting the normal operation of the device. Utility Model Content

[0005] The purpose of this invention is to provide a PP tail gas absorption tower to solve the problems mentioned in the background art.

[0006] To achieve the above objectives, this utility model provides the following technical solution:

[0007] A PP tail gas absorption tower includes a tower body and a fan. The tower body is provided with an air inlet and an air outlet. An air inlet pipe is installed at the air inlet of the tower body, and an air outlet pipe is installed at the air outlet of the tower body. One end of the air outlet pipe is connected to the air inlet of the fan. The tower body is provided with a filter cartridge for filtering the absorption liquid after the reaction. The tower body is provided with a cleaning mechanism for cleaning the dirt in the filter cartridge. The cleaning mechanism includes a drain pipe, a flushing end, and a shell. The shell is located outside the tower body, and the flushing end is located inside the tower body and below the filter cartridge.

[0008] Preferably, the tower body is provided with a packing layer inside, a flushing pipe rack is provided inside the tower body, multiple sets of nozzles are provided on the flushing pipe rack, an outer shell is provided outside the tower body, a circulating water pump with its inlet end extending into the tower body is provided inside the outer shell, a pipe is installed at the outlet end of the circulating water pump, and the outlet of the pipe is connected to the inlet of the flushing pipe rack.

[0009] Preferably, the tower body is provided with an installation frame inside, and the filter cartridge is installed inside the tower body through the installation frame.

[0010] Preferably, the tower body is provided with a drain pipe that communicates with the inside of the filter cartridge, and the drain pipe is equipped with an electrically controlled valve.

[0011] Preferably, the tower body is provided with multiple sets of lead screws, each with a lead screw nut engaged with it. The outside of the lead screw nut is fixedly connected to the outside of the rinsing end. The rinsing end is provided with multiple sets of rinsing holes. Multiple sets of motors are fixedly installed on the outside of the tower body, and the output end of the motor is fixedly connected to one end of the lead screw.

[0012] Preferably, the interior of the shell is provided with a water tank and a water pump. The inlet end of the water pump extends into the interior of the water tank, and the outlet end of the water pump is connected to a retractable infusion hose. The retractable infusion hose is located inside the tower body, and one end of the retractable infusion hose is connected to the interior of the flushing end.

[0013] Compared with the prior art, the beneficial effects of this utility model are:

[0014] 1. This utility model, by installing a filter cartridge, allows the absorbent liquid after the reaction to be filtered by the filter cartridge as it falls into the bottom of the tower. Particulate matter and impurities are trapped by the filter cartridge, enabling the filtered absorbent liquid to be recycled more effectively and improving the purification efficiency of the exhaust gas.

[0015] 2. This utility model, equipped with a drain pipe, a rinsing end, and a housing, allows for easy cleaning of the filter cartridge when a certain amount of dirt and particulate matter accumulates inside. By opening the electrically controlled valve to prepare for drainage, the motor drives the lead screw to rotate, raising and lowering the rinsing end to a suitable position. The top of the rinsing end contacts the bottom of the filter cartridge, sealing the bottom and ensuring the cleaning solution fully penetrates the cartridge without leakage. After sealing, a water pump draws the cleaning solution from the tank and delivers it to the rinsing end via a retractable tubing. The cleaning solution is sprayed into the filter cartridge through the rinsing holes, cleaning it. During cleaning, dirt and particulate matter inside the cartridge are flushed away by the cleaning solution and discharged through the drain pipe. After cleaning, the electrically controlled valve is closed to stop drainage, and the motor drives the lead screw to rotate, returning the rinsing end to its original position for the next use. This makes cleaning the filter cartridge more convenient and ensures the cartridge maintains good filtration efficiency and service life. Attached Figure Description

[0016] Figure 1 This is a schematic diagram of the overall structure of this utility model;

[0017] Figure 2 This is a schematic diagram of the internal structure of the present invention;

[0018] Figure 3 This is a schematic diagram of the filter cartridge structure of this utility model.

[0019] In the diagram: 1. Tower body; 2. Fan; 3. Inlet pipe; 4. Outlet pipe; 5. Packing layer; 6. Outer shell; 7. Circulating water pump; 8. Pipe body; 9. Flushing pipe rack; 10. Nozzle; 11. Filter cartridge; 12. Sewage pipe; 13. Electrically controlled valve; 14. Lead screw one; 15. Lead screw nut; 16. Flushing end; 17. Flushing hole; 18. Telescopic infusion hose; 19. Motor; 20. Shell; 21. Water tank; 22. Water pump one; 23. Mounting bracket. Detailed Implementation

[0020] The technical solutions of the present utility model will be clearly and completely described below with reference to the accompanying drawings of the embodiments. Obviously, the described embodiments are only some embodiments of the present utility model, and not all embodiments. Based on the embodiments of the present utility model, all other embodiments obtained by those of ordinary skill in the art without creative effort are within the protection scope of the present utility model.

[0021] Please see Figures 1-3A PP tail gas absorption tower includes a tower body 1 and a blower 2. The tower body 1 has an air inlet and an air outlet. An air inlet pipe 3 is installed at the air inlet of the tower body 1, and an air outlet pipe 4 is installed at the air outlet of the tower body 1. One end of the air outlet pipe 4 is connected to the air inlet of the blower 2. A packing layer 5 is provided inside the tower body 1. A flushing pipe rack 9 is provided inside the tower body 1, and multiple sets of nozzles 10 are installed on the flushing pipe rack 9. An outer shell 6 is provided outside the tower body 1. A circulating water pump 7, with its liquid inlet extending into the tower body 1, is provided inside the outer shell 6. A pipe body 8 is installed at the liquid outlet of the circulating water pump 7, and the liquid outlet of the pipe body 8 is connected to the liquid inlet of the flushing pipe rack 9. A filter cartridge 11 for filtering the absorbed liquid after the reaction is provided inside the tower body 1. The tower body 1 is equipped with... A cleaning mechanism is provided for cleaning the dirt in the filter cartridge 11. The cleaning mechanism includes a drain pipe 12, a flushing end 16, and a housing 20. The housing 20 is located outside the tower body 1, and the flushing end 16 is located inside the tower body 1, below the filter cartridge 11. The tower body 1 is the main structure for exhaust gas absorption. The tower body 1 is provided with an air inlet and an air outlet for inputting exhaust gas and outputting purified gas. The air inlet pipe 3 is connected to the air inlet of the tower body 1 to introduce the exhaust gas to be treated. The air outlet pipe 4 is connected to the air outlet of the tower body 1, with one end connected to the air inlet of the blower 2, for extracting and discharging the purified gas. The packing layer 5 is located inside the tower body 1 to increase the contact area between the exhaust gas and the absorption liquid, thereby improving the absorption efficiency. The flushing pipe rack 9 is provided with... The nozzles 10 are placed inside the tower body 1 and are used to support and install the nozzles. Multiple sets of nozzles 10 are set on the flushing pipe rack 9 for spraying the absorbent liquid, so that harmful substances in the exhaust gas are absorbed. The circulating water pump 7 is set inside the outer casing 6 to provide power for the cleaning liquid. The pipe body 8 connects the liquid outlet of the circulating water pump 7 and the liquid inlet of the flushing pipe rack 9 for transporting the absorbent liquid. The exhaust gas enters the tower body 1 through the air inlet pipe 3 and comes into full contact with the absorbent liquid in the packing layer 5. During the contact process, the harmful substances in the exhaust gas are absorbed by the absorbent liquid, thereby purifying the exhaust gas. The purified gas is discharged through the air outlet pipe 4 and the fan 2. The circulating water pump 7 continuously delivers the cleaning liquid to the nozzles 10 on the flushing pipe rack 9 to ensure that the nozzles 10 can continuously spray the absorbent liquid and maintain the packing layer 5. With its wetting and high-efficiency absorption capabilities, the filter cartridge 11 filters the absorbed liquid as it falls into the bottom of the tower body 1. Particulate matter and impurities are trapped by the filter cartridge 11, allowing for more efficient recycling of the filtered absorbed liquid. When a certain amount of dirt and particulate matter accumulates inside the filter cartridge 11 and cleaning is required, the electrically controlled valve 13 is opened to prepare for drainage. The motor 19 drives the lead screw 14 to rotate, raising and lowering the flushing end 16 to a suitable position. The top of the flushing end 16 contacts the bottom of the filter cartridge 11, sealing the bottom of the filter cartridge 11 and ensuring that the cleaning liquid can fully act inside the filter cartridge 11 without leakage from the bottom. After sealing, the water pump 22 draws the cleaning liquid from the water tank 21.The cleaning solution is delivered to the flushing end 16 via a retractable infusion hose 18. The cleaning solution is sprayed into the filter cartridge 11 through the flushing hole 17 to clean it. During the cleaning process, dirt and particles inside the filter cartridge 11 are flushed away by the cleaning solution and discharged through the drain pipe 12. After cleaning is complete, the electrically controlled valve 13 is closed to stop the discharge, and the motor 19 drives the lead screw 14 to rotate, causing the flushing end 16 to return to its original position for the next use. This makes cleaning the filter cartridge 11 more convenient and ensures that the filter cartridge 11 always maintains good filtration efficiency and service life.

[0022] Please see Figure 2 and Figure 3The tower body 1 has an internal mounting bracket 23, and the filter cartridge 11 is mounted inside the tower body 1 via the mounting bracket 23. A drain pipe 12 connected to the inside of the filter cartridge 11 is provided on the tower body 1, and an electrically controlled valve 13 is installed on the drain pipe 12. Multiple sets of lead screws 14 are installed inside the tower body 1, and lead screw nuts 15 are engaged on the lead screws 14. The external parts of the lead screw nuts 15 are fixedly connected to the external parts of the flushing end 16. The flushing end 16 has multiple sets of flushing holes 17. Multiple sets of motors 19 are fixedly installed on the external parts of the tower body 1, and the output ends of the motors 19 are fixedly connected to one end of the lead screw 14. Water is provided inside the shell 20. The tank 21 and water pump 22 are connected. The inlet of water pump 22 extends into the interior of the tank 21, and the outlet of water pump 22 is connected to a retractable infusion hose 18. The retractable infusion hose 18 is located inside the tower body 1, and one end of the retractable infusion hose 18 is connected to the interior of the flushing end 16. The mounting bracket 23 is located inside the tower body 1 to fix and support the filter cartridge 11, ensuring that the filter cartridge 11 can work stably. The filter cartridge 11 is installed inside the tower body 1 through the mounting bracket 23 to filter the absorbent sprayed outward by the nozzle 10 and mixed with the exhaust gas, removing particulate matter and impurities from the absorbent. The drain pipe 12 is connected to the filter cartridge 11. The drain pipe 12 is connected to the filter cartridge 11 and is used to discharge the dirt and particulate matter accumulated in the filter cartridge 11. An electrically controlled valve 13 is installed on the drain pipe 12 to easily control the discharge process. A lead screw 14 is installed inside the tower body 1 to drive the lifting and lowering of the flushing end 16. A lead screw nut 15 meshes with the lead screw 14 and is externally fixedly connected to the outside of the flushing end 16. When the lead screw 14 rotates, the lead screw nut 15 drives the flushing end 16 to rise and fall. The flushing end 16 is provided with multiple sets of flushing holes 17 for spraying cleaning fluid to clean the filter cartridge 11. The motor 19 drives the rotation of the lead screw 14, thereby realizing the lifting and lowering of the flushing end 16. The housing 20 is installed in the tower body. The exterior of the tower body 1 houses components such as the water tank 21 and the water pump 22. The water tank 21 stores the cleaning fluid, providing a continuous supply of cleaning fluid to the rinsing end 16. The inlet of the water pump 22 extends into the interior of the water tank 21, and the outlet is connected to a retractable infusion hose 18. When the water pump 22 is working, it draws the cleaning fluid from the water tank 21 and delivers it to the rinsing end 16 through the retractable infusion hose 18. The retractable infusion hose 18 is located inside the tower body 1, with one end connected to the interior of the rinsing end 16 and the other end connected to the outlet of the water pump 22. The hose can extend and retract as the rinsing end 16 rises and falls, ensuring a continuous supply of cleaning fluid.

[0023] Working principle: Tower body 1 is the main structure for exhaust gas absorption. Tower body 1 is equipped with an inlet and an outlet for inputting exhaust gas and outputting purified gas. Inlet pipe 3 is connected to the inlet of tower body 1 to introduce the exhaust gas to be treated. Outlet pipe 4 is connected to the outlet of tower body 1, with one end connected to the inlet of fan 2, for extracting and discharging the purified gas. Packing layer 5 is located inside tower body 1 to increase the contact area between the exhaust gas and the absorbent liquid, improving absorption efficiency. Flushing pipe rack 9 is located inside tower body 1 to support and install nozzles 10. Multiple sets of nozzles 10 are installed on the flushing pipe rack 9 to spray the absorbent liquid, allowing harmful substances in the exhaust gas to be absorbed. Circulating water pump 7 is located inside the outer casing 6 to provide power for the cleaning liquid. Pipe body 8... The outlet of the circulating water pump 7 and the inlet of the flushing pipe rack 9 are connected to transport the absorbent liquid. The exhaust gas enters the tower body 1 through the inlet pipe 3 and comes into full contact with the absorbent liquid in the packing layer 5. During this contact process, harmful substances in the exhaust gas are absorbed by the absorbent liquid, thus purifying the exhaust gas. The purified gas is discharged through the outlet pipe 4 and the fan 2. The circulating water pump 7 continuously delivers the cleaning liquid to the nozzles 10 on the flushing pipe rack 9, ensuring that the nozzles 10 can continuously spray the absorbent liquid, maintaining the moisture and high-efficiency absorption capacity of the packing layer 5. Through the installation of the filter cartridge 11, the reacted absorbent liquid is filtered as it falls into the inner bottom of the tower body 1. Particulate matter and impurities are trapped by the filter cartridge 11, allowing the filtered absorbent liquid to be recycled more effectively. When a certain amount of dirt and particulate matter accumulates inside the filter cartridge 11 and needs cleaning, the electronically controlled valve 13 is opened to prepare for drainage. The motor 19 drives the lead screw 14 to rotate, raising and lowering the flushing end 16 to a suitable position. The top of the flushing end 16 contacts the bottom of the filter cartridge 11, sealing the bottom of the filter cartridge 11 and ensuring that the cleaning fluid can fully act on the inside of the filter cartridge 11 without leakage from the bottom. After sealing, the water pump 22 draws the cleaning fluid from the water tank 21 and delivers it to the flushing end 16 through the retractable infusion hose 18. The cleaning fluid is sprayed into the filter cartridge 11 through the flushing hole 17 to clean it. During the cleaning process, the dirt and particulate matter inside the filter cartridge 11 are flushed away by the cleaning fluid and discharged through the drain pipe 12. After cleaning is completed, the electrically controlled valve 13 is closed to stop the discharge. The control motor 19 drives the lead screw 14 to rotate, causing the rinsing end 16 to rise and fall back to its original position for the next use. This makes cleaning the filter cartridge 11 more convenient and ensures that the filter cartridge 11 always maintains good filtration efficiency and service life. The mounting bracket 23 is set inside the tower body 1 to fix and support the filter cartridge 11, ensuring that the filter cartridge 11 can work stably. The filter cartridge 11 is installed inside the tower body 1 through the mounting bracket 23 and is used to filter the absorbent sprayed outward by the nozzle 10 and mixed with the exhaust gas, removing particulate matter and impurities from the absorbent. The drain pipe 12 is connected to the inside of the filter cartridge 11 and is used to discharge the dirt and particulate matter accumulated in the filter cartridge 11. The drain pipe 12 is equipped with an electrically controlled valve 13.The sewage discharge process can be easily controlled. A lead screw 14 is installed inside the tower body 1 to drive the lifting and lowering of the flushing end 16. A lead screw nut 15 meshes with the lead screw 14 and is externally fixedly connected to the outside of the flushing end 16. When the lead screw 14 rotates, the lead screw nut 15 drives the flushing end 16 to rise and fall. The flushing end 16 is provided with multiple sets of flushing holes 17 for spraying cleaning fluid to clean the filter cartridge 11. A motor 19 drives the rotation of the lead screw 14, thereby realizing the lifting and lowering of the flushing end 16. A housing 20 is installed outside the tower body 1 to house the water tank 21 and water pump 22, etc. The system includes a water tank 21 for storing cleaning fluid and providing a continuous supply to the rinsing end 16. The inlet of a water pump 22 extends into the water tank 21, and its outlet is connected to a retractable delivery hose 18. When the water pump 22 operates, it draws cleaning fluid from the water tank 21 and delivers it to the rinsing end 16 via the retractable delivery hose 18. The retractable delivery hose 18 is located inside the tower body 1, with one end connected to the interior of the rinsing end 16 and the other end connected to the outlet of the water pump 22. The hose can extend and retract as the rinsing end 16 rises and falls, ensuring a continuous supply of cleaning fluid.

[0024] It will be apparent to those skilled in the art that this invention is not limited to the details of the exemplary embodiments described above, and that it can be implemented in other specific forms without departing from the spirit or essential characteristics of this invention. Therefore, the embodiments should be considered illustrative and non-limiting in all respects, and the scope of this invention is defined by the appended claims rather than the foregoing description. Thus, it is intended that all variations falling within the meaning and scope of equivalents of the claims be included within this invention. No reference numerals in the claims should be construed as limiting the scope of the claims.

Claims

1. A PP tail gas absorption tower, comprising, The tower body (1) and the blower (2) are provided with an air inlet and an air outlet respectively. An air inlet pipe (3) is installed on the air inlet of the tower body (1) and an air outlet pipe (4) is installed on the air outlet of the tower body (1). One end of the air outlet pipe (4) is connected to the air inlet of the blower (2). The tower body (1) is characterized by having a filter cartridge (11) for filtering the absorbent liquid after the reaction inside the tower body (1). The tower body (1) is provided with a cleaning mechanism for cleaning the dirt in the filter cartridge (11). The cleaning mechanism includes a drain pipe (12), a flushing end (16) and a shell (20). The shell (20) is located outside the tower body (1). The flushing end (16) is located inside the tower body (1) and below the filter cartridge (11).

2. The PP tail gas absorption tower according to claim 1, characterized in that: The tower body (1) is provided with a packing layer (5) inside, and a flushing pipe rack (9) is provided inside the tower body (1). Multiple sets of nozzles (10) are provided on the flushing pipe rack (9). The tower body (1) is provided with an outer shell (6). A circulating water pump (7) with its inlet end extending into the tower body (1) is provided inside the outer shell (6). A pipe body (8) is installed at the outlet end of the circulating water pump (7), and the outlet of the pipe body (8) is connected to the inlet of the flushing pipe rack (9).

3. The PP tail gas absorption tower according to claim 1, characterized in that: The tower body (1) is provided with an installation frame (23) inside, and the filter cartridge (11) is installed inside the tower body (1) through the installation frame (23).

4. A PP tail gas absorption tower according to claim 2, characterized in that: The tower body (1) is provided with a drain pipe (12) that is connected to the inside of the filter cartridge (11), and an electrically controlled valve (13) is provided on the drain pipe (12).

5. A PP tail gas absorption tower according to claim 3, characterized in that: The tower body (1) is equipped with multiple sets of lead screws (14), and lead screw nuts (15) are engaged on the lead screws (14). The outside of the lead screw nuts (15) is fixedly connected to the outside of the flushing end (16). The flushing end (16) is equipped with multiple sets of flushing holes (17). Multiple sets of motors (19) are fixedly installed on the outside of the tower body (1), and the output end of the motors (19) is fixedly connected to one end of the lead screws (14).

6. A PP tail gas absorption tower according to claim 4, characterized in that: The housing (20) is equipped with a water tank (21) and a water pump (22) respectively. The inlet end of the water pump (22) extends into the interior of the water tank (21), and the outlet end of the water pump (22) is connected to a retractable infusion hose (18). The retractable infusion hose (18) is located inside the tower body (1), and one end of the retractable infusion hose (18) is connected to the interior of the flushing end (16).

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