Phenolic resin production tail gas absorption device

Abstract

The utility model relates to the technical field of chemical production, and discloses a phenolic resin production tail gas absorption device which comprises a bottom plate and two adsorption pipes, an adsorption tank is fixedly connected to the upper ends of four supporting legs, a motor is fixedly connected to the bottom end of the adsorption tank, and a support is fixedly connected to the upper end of a rotating shaft. Mounting holes are formed in the two sides of the interior of the support in a penetrating mode, adsorption materials are arranged in the two adsorption pipes in a sliding mode, and the upper ends of the two adsorption pipes are in threaded connection with upper covers. According to the phenolic resin production tail gas absorption device, the motor drives the rotating shaft and the bracket to rotate, so that an adsorption material mounted in the adsorption pipe on the bracket can continuously rotate, the contact area and time of tail gas and the adsorption material are increased, and the absorption efficiency and treatment capacity of the tail gas are improved; due to the design of the adsorption pipe, the upper cover in threaded connection can be easily opened, a new adsorption material can be conveniently replaced or added, and the maintainability and flexibility of equipment are improved.

Description

Technical Field

[0001] The present application relates to the technical field of chemical production, and specifically to an exhaust gas absorption device for phenolic resin production. Background Art

[0002] During the production of phenolic resin, production waste gas is generated. The main pollution factors of the waste gas are trace amounts of formaldehyde, methanol, phenol, and water vapor. If the above waste gas is directly discharged, it cannot meet the requirements of national waste gas emission standards and will cause serious pollution to the surrounding environment.

[0003] Existing exhaust gas absorption devices for phenolic resin production often adsorb them through activated carbon adsorption tanks. When the activated carbon is used for a long time, it is prone to failure. If the entire activated carbon adsorption tank is replaced, its use and maintenance costs are relatively high. Utility Model Content

[0004] Aiming at the deficiencies of the prior art, the present application provides an exhaust gas absorption device for phenolic resin production, which has the advantages of increasing the adsorption effect and saving costs, and solves the problems of existing exhaust gas absorption devices for phenolic resin production, which often adsorb them through activated carbon adsorption tanks. When the activated carbon is used for a long time, it is prone to failure. If the entire activated carbon adsorption tank is replaced, its use and maintenance costs are relatively high.

[0005] To achieve the above object, the present application provides the following technical solution: An exhaust gas absorption device for phenolic resin production, including a bottom plate and two adsorption tubes. One side of the upper end of the bottom plate is fixedly connected with four legs arranged in a rectangular array. The upper ends of the four legs are fixedly connected with an adsorption tank. The bottom end of the adsorption tank is fixedly connected with a motor. The output end of the motor penetrates through the bottom end of the adsorption tank and is fixedly connected with a rotating shaft through a coupling. The upper end of the rotating shaft is fixedly connected with a bracket. Installation holes are respectively opened through both sides inside the bracket. Adsorption materials are slidably arranged inside both adsorption tubes. Upper covers are respectively threadedly connected to the upper ends of the two adsorption tubes. The upper end of the adsorption tank is fixedly connected with a sealing cover through bolts.

[0006] Through the above solution, by driving the rotation of the rotating shaft and the bracket by the motor, the adsorption materials inside the adsorption tubes installed on the bracket can rotate continuously, thereby increasing the contact area and time between the exhaust gas and the adsorption materials, improving the absorption efficiency and treatment capacity of the exhaust gas. The design of the adsorption tubes allows the upper covers connected by threads to be easily opened, facilitating the replacement or addition of new adsorption materials, improving the maintainability and flexibility of the equipment. The equipment structure is relatively simple, and the operation and maintenance are relatively convenient. The sealing cover connected by bolts can be easily opened for internal inspection and replacement of the adsorption materials. Since the adsorption materials can be replaced as needed, the device can adapt to the treatment requirements of different types and concentrations of exhaust gas and has strong adaptability.

[0007] Furthermore, the bottom end of the outer wall of the adsorption tank is fixedly connected with an exhaust groove, the upper end inside the exhaust groove is fixedly connected with an exhaust pipe, the upper end of the exhaust groove is fixedly connected with an exhaust fan, the input end of the exhaust fan is fixedly connected with the exhaust pipe, and the output end of the exhaust fan is fixedly connected with a discharge pipe.

[0008] Through the above scheme, the arrangement of the exhaust groove in combination with the exhaust pipe and the exhaust fan can effectively extract the tail gas in the adsorption tank and discharge it through the discharge pipe. This forced extraction method ensures that the tail gas can fully flow through the adsorption material, improving the treatment efficiency and effect of the tail gas.

[0009] Furthermore, a support frame is fixedly connected to the upper end of the bottom plate away from the support legs, a condenser is fixedly connected to the upper end of the support frame, a connector is fixedly connected to one side of the condenser, and a drain pipe is fixedly connected to the side of the condenser away from the connector.

[0010] Through the above scheme, the introduction of the condenser enables effective condensation of condensable components such as water vapor in the tail gas, reducing the moisture content in the tail gas and facilitating subsequent treatment.

[0011] Furthermore, one end of the drain pipe away from the condenser is fixedly connected with a tee joint, one end of the tee joint away from the drain pipe is fixedly connected with a connecting pipe, one end of the connecting pipe away from the tee joint is fixedly connected with a steam-water separator, and one end of the steam-water separator away from the connecting pipe is fixedly connected with an exhaust pipe.

[0012] Through the above scheme, the introduction of the steam-water separator enables further separation of possible residual water droplets or water mist in the condensed tail gas, thereby reducing the moisture content in the tail gas and improving the purity and purification effect of the tail gas.

[0013] Furthermore, a spray tower and a condensate storage tank are fixedly connected to the upper end of the bottom plate, a hose is fixedly connected to the upper end of the spray tower, and the upper end of the condensate storage tank is fixedly connected with the tee joint.

[0014] Through the above scheme, the introduction of the spray tower adds a chemical absorption or washing step to the tail gas treatment. Through the spray liquid in the spray tower, harmful substances in the tail gas can undergo chemical reactions or be absorbed with the spray liquid, thereby further purifying the tail gas. The design of the condensate storage tank enables the collection and storage of the condensate discharged from the condenser.

[0015] Furthermore, both adsorption tubes are slidably arranged inside the mounting holes.

[0016] Through the above scheme, the adsorption tubes can slide inside the mounting holes, making it easy to be installed or disassembled without complex fixing devices or tools, which is convenient for maintenance and replacement.

[0017] Further, one end of the exhaust pipe away from the steam-water separator is fixedly connected to the spray tower.

[0018] With the above solution, the exhaust pipe is directly connected to the spray tower, so that the tail gas directly enters the interior of the spray tower after the water vapor in the tail gas is removed by the steam-water separator.

[0019] Further, one end of the hose away from the spray tower is fixedly connected to the sealing cover.

[0020] With the above solution, through the fixed connection between the hose and the sealing cover, the airtightness of the tail gas during transmission can be ensured, preventing leakage and pollution. The hose is flexible and can adapt to the relative movement or vibration between the spray tower, the sealing cover or other components, reducing the risk of connection failure caused by component movement.

[0021] Compared with the prior art, the technical solution of the present application has the following beneficial effects:

[0022] For this phenolic resin production tail gas absorption device, by driving the rotation of the rotating shaft and the bracket by the motor, the adsorption material in the adsorption tube installed on the bracket can rotate continuously, thereby increasing the contact area and time between the tail gas and the adsorption material, improving the absorption efficiency and treatment capacity of the tail gas. The design of the adsorption tube allows the upper cover connected by threads to be easily opened, facilitating the replacement or addition of new adsorption materials, improving the maintainability and flexibility of the equipment. The equipment structure is relatively simple, and operation and maintenance are both relatively convenient. The sealing cover connected by bolts can be easily opened for internal inspection and replacement of the adsorption material. Since the adsorption material can be replaced as needed, this device can adapt to the treatment requirements of different types and concentrations of tail gas, and has strong adaptability. BRIEF DESCRIPTION OF THE DRAWINGS

[0023] Figure 1 is the overall structural schematic diagram of the structure of the present application;

[0024] Figure 2 is the structural schematic diagram of the adsorption tank of the structure of the present application;

[0025] Figure 3 is the structural schematic diagram of the adsorption tube installation of the structure of the present application;

[0026] Figure 4 is the structural schematic diagram of the smoke exhaust device of the structure of the present application.

[0027] In the figure:

[0028] 1. Bottom plate; 2. Legs; 3. Adsorption tank; 4. Motor; 5. Rotating shaft; 6. Bracket; 7. Mounting hole; 8. Adsorption pipe; 9. Adsorption material; 10. Upper cover; 11. Sealing cover; 12. Exhaust groove; 13. Exhaust duct; 14. Exhaust fan; 15. Discharge pipe; 16. Support frame; 17. Condenser; 18. Connector; 19. Drain pipe; 20. Tee; 21. Connecting pipe; 22. Steam-water separator; 23. Exhaust pipe; 24. Spray tower; 25. Hose; 26. Condensate storage tank. Detailed implementation manners

[0029] The following will clearly and completely describe the technical solutions in the embodiments of the present application with reference to the accompanying drawings in the embodiments of the present application. Obviously, the described embodiments are only a part of the embodiments of the present application, rather than all the embodiments. Based on the embodiments in the present application, all other embodiments obtained by those of ordinary skill in the art without creative efforts shall fall within the protection scope of the present application.

[0030] Please refer to Figure 1 , Figure 2 and Figure 3 , in a phenolic resin production tail gas absorption device in this embodiment, which includes a bottom plate 1 and two adsorption pipes 8. One side of the upper end of the bottom plate 1 is fixedly connected with four legs 2 arranged in a rectangular array. The upper ends of the four legs 2 are fixedly connected with an adsorption tank 3. The bottom end of the adsorption tank 3 is fixedly connected with a motor 4. The output end of the motor 4 penetrates through the bottom end of the adsorption tank 3 and is fixedly connected with a rotating shaft 5 through a coupling. The upper end of the rotating shaft 5 is fixedly connected with a bracket 6. Mounting holes 7 are respectively opened through both sides inside the bracket 6. Adsorption materials 9 are slidably arranged inside both adsorption pipes 8. By driving the rotating shaft 5 and the bracket 6 to rotate through the motor 4, the adsorption materials 9 inside the adsorption pipes 8 mounted on the bracket 6 can rotate continuously, thereby increasing the contact area and time between the tail gas and the adsorption materials 9, improving the absorption efficiency and treatment capacity of the tail gas. The upper ends of both adsorption pipes 8 are threadedly connected with upper covers 10. The design of the adsorption pipes 8 allows the upper covers 10 connected by threads to be easily opened, facilitating the replacement or addition of new adsorption materials 9, improving the maintainability and flexibility of the equipment. The upper end of the adsorption tank 3 is fixedly connected with a sealing cover 11 through bolts.

[0031] Please refer to Figure 1 , Figure 2 and Figure 4, the bottom end of the outer wall of the adsorption tank 3 is fixedly connected with an exhaust groove 12. The upper end inside the exhaust groove 12 is fixedly connected with an exhaust pipe 13. The upper end of the exhaust groove 12 is fixedly connected with an exhaust fan 14. The input end of the exhaust fan 14 is fixedly connected with the exhaust pipe 13. The output end of the exhaust fan 14 is fixedly connected with a discharge pipe 15. The arrangement of the exhaust groove 12 combined with the exhaust pipe 13 and the exhaust fan 14 can effectively extract the tail gas in the adsorption tank 3 and discharge it through the discharge pipe 15. This forced extraction method ensures that the tail gas can fully flow through the adsorption material 9, improving the treatment efficiency and effect of the tail gas. A support frame 16 is fixedly connected to the upper end of the bottom plate 1 away from the support leg 2. A condenser 17 is fixedly connected to the upper end of the support frame 16. A connector 18 is fixedly connected to one side of the condenser 17, and the connector 18 is used to connect with the tail gas discharge. A drain pipe 19 is fixedly connected to the side of the condenser 17 away from the connector 18. The introduction of the condenser 17 enables effective condensation of condensable components such as water vapor in the tail gas, reducing the water content in the tail gas and facilitating subsequent treatment. One end of the drain pipe 19 away from the condenser 17 is fixedly connected with a tee 20. One end of the tee 20 away from the drain pipe 19 is fixedly connected with a connecting pipe 21. One end of the connecting pipe 21 away from the tee 20 is fixedly connected with a steam-water separator 22. One end of the steam-water separator 22 away from the connecting pipe 21 is fixedly connected with an exhaust pipe 23. The introduction of the steam-water separator 22 enables further separation of possible remaining water droplets or water mist in the condensed tail gas, thereby reducing the water content in the tail gas and improving the purity and purification effect of the tail gas.

[0032] Please refer to Figure 2 , Figure 3 and Figure 4, a spray tower 24 and a condensate storage tank 26 are fixedly connected to the upper end of the bottom plate 1. A hose 25 is fixedly connected to the upper end of the spray tower 24. The upper end of the condensate storage tank 26 is fixedly connected to a three-way joint 20. The introduction of the spray tower 24 adds a chemical absorption or washing step to the tail gas treatment. Through the spray liquid in the spray tower 24, harmful substances in the tail gas can undergo chemical reactions or be absorbed by the spray liquid, thereby further purifying the tail gas. The design of the condensate storage tank 26 enables the condensate discharged from the condenser 17 to be collected and stored. Both adsorption tubes 8 are slidably arranged inside the mounting holes 7. The adsorption tubes 8 can slide within the mounting holes 7, making it possible to be easily installed or disassembled without complex fixing devices or tools, which is convenient for maintenance and replacement. One end of the exhaust pipe 23 far from the steam-water separator 22 is fixedly connected to the spray tower 24. Connecting the exhaust pipe 23 directly to the spray tower 24 allows the tail gas to directly enter the interior of the spray tower 24 after the steam in the tail gas is removed by the steam-water separator 22. One end of the hose 25 far from the spray tower 24 is fixedly connected to the sealing cover 11. By fixedly connecting the hose 25 to the sealing cover 11, the tightness of the tail gas during transmission can be ensured, preventing leakage and pollution. The hose 25 is flexible and can adapt to the relative movement or vibration between the spray tower 24, the sealing cover 11 or other components, reducing the risk of connection failure caused by component movement.

[0033] In this embodiment, for the phenolic resin production tail gas absorption device, the motor 4 drives the rotation of the rotating shaft 5 and the bracket 6, enabling the adsorption material 9 inside the adsorption tube 8 mounted on the bracket 6 to continuously rotate, thereby increasing the contact area and time between the tail gas and the adsorption material 9, improving the absorption efficiency and treatment capacity of the tail gas. The design of the adsorption tube 8 allows the upper cover 10 connected by threads to be easily opened, facilitating the replacement or addition of new adsorption material 9, improving the maintainability and flexibility of the equipment. The equipment structure is relatively simple, and both operation and maintenance are relatively convenient. The sealing cover 11 connected by bolts can be easily opened for internal inspection and replacement of the adsorption material 9. Since the adsorption material 9 can be replaced as needed, this device can adapt to the treatment requirements of different types and concentrations of tail gas, having strong adaptability.

[0034] It should be noted that the condenser 17 is inclined. The adsorption material 9 inside the adsorption tube 8 is usually activated carbon, and the adsorption tube 8 can be opened by rotating the upper cover 10 to replace the adsorption material 9 inside it.

[0035] The working principle of the above embodiment is as follows:

[0036] The tail gas generated during the production process of phenolic resin is first guided through the connecting pipe 21 to the connector 18 of the condenser 17. In the condenser 17, condensable components such as water vapor in the tail gas are cooled and condensed into liquid water, thereby reducing the moisture content in the tail gas, lowering the humidity of the tail gas, and improving the effect of subsequent treatment. The condensed tail gas enters the steam-water separator 22 through the drain pipe 19. The steam-water separator 22 further removes water droplets or water mist in the tail gas to ensure that the tail gas is as dry and pure as possible before entering the subsequent treatment steps. The tail gas after steam-water separation is guided through the exhaust pipe 23 to the spray tower 24. In the spray tower 24, the tail gas contacts the spray liquid, and harmful substances in the tail gas react chemically with the spray liquid or are absorbed, thereby further purifying the tail gas. Then it enters the adsorption tank 3 inside. There are two adsorption pipes 8 in the adsorption tank 3, and the adsorption material 9 is installed in the adsorption pipe 8. The motor 4 drives the rotating shaft 5 and the bracket 6 to rotate, so that the adsorption material 9 rotates continuously, increasing the contact area and time between the tail gas and the adsorption material 9, and improving the absorption efficiency and treatment capacity of the tail gas. The condensed water generated in the condenser 17 flows into the condensed water storage tank 26 through the drain pipe 19 and the tee 20 for collection and storage. The purified tail gas is extracted by the exhaust fan and discharged through the discharge pipe 15.

[0037] It should be noted that in this text, relational terms such as first and second are only used to distinguish one entity or operation from another entity or operation, and do not necessarily require or imply any actual relationship or order between these entities or operations. Moreover, the term "comprising", "including" or any other variant thereof is intended to cover non-exclusive inclusion, so that a process, method, article or device including a series of elements not only includes those elements, but also includes other elements not expressly listed, or also includes elements inherent to such process, method, article or device. Without further limitation, an element defined by the statement "including a..." does not exclude the existence of additional identical elements in the process, method, article or device including the said element.

[0038] Although the embodiments of the present application have been shown and described, for those of ordinary skill in the art, it can be understood that various changes, modifications, substitutions and variations can be made to these embodiments without departing from the principle and spirit of the present application. The scope of the present application is defined by the appended claims and their equivalents.

Claims

1. An exhaust gas absorption device for phenolic resin production, comprising a bottom plate (1) and two adsorption tubes (8), characterized in that: On one side of the upper end of the bottom plate (1), four legs (2) arranged in a rectangular array are fixedly connected. At the upper ends of the four legs (2), an adsorption tank (3) is fixedly connected. At the bottom end of the adsorption tank (3), a motor (4) is fixedly connected. The output end of the motor (4) penetrates the bottom end of the adsorption tank (3) and is fixedly connected with a rotating shaft (5) through a coupling. At the upper end of the rotating shaft (5), a bracket (6) is fixedly connected. Installation holes (7) are respectively opened through both sides inside the bracket (6). Inside both adsorption tubes (8), an adsorption material (9) is slidably arranged. At the upper ends of both adsorption tubes (8), upper covers (10) are threadedly connected. At the upper end of the adsorption tank (3), a sealing cover (11) is fixedly connected by bolts.

2. The phenolic resin production tail gas absorption device according to claim 1, characterized in that: At the bottom end of the outer wall of the adsorption tank (3), an exhaust groove (12) is fixedly connected. At the upper end inside the exhaust groove (12), an air extraction pipe (13) is fixedly connected. At the upper end of the exhaust groove (12), an exhaust fan (14) is fixedly connected. The input end of the exhaust fan (14) is fixedly connected with the air extraction pipe (13). The output end of the exhaust fan (14) is fixedly connected with a discharge pipe (15).

3. The phenolic resin production tail gas absorption device according to claim 1, characterized in that: On the upper end of the bottom plate (1) away from the legs (2), a support frame (16) is fixedly connected. At the upper end of the support frame (16), a condenser (17) is fixedly connected. On one side of the condenser (17), a connector (18) is fixedly connected. On the side of the condenser (17) away from the connector (18), a drain pipe (19) is fixedly connected.

4. The phenolic resin production tail gas absorption device according to claim 3, characterized in that: At the end of the drain pipe (19) away from the condenser (17), a tee (20) is fixedly connected. At the end of the tee (20) away from the drain pipe (19), a connecting pipe (21) is fixedly connected. At the end of the connecting pipe (21) away from the tee (20), a steam-water separator (22) is fixedly connected. At the end of the steam-water separator (22) away from the connecting pipe (21), an exhaust pipe (23) is fixedly connected.

5. The tail gas absorption device for phenolic resin production according to claim 1, characterized in that: On the upper end of the bottom plate (1), a spray tower (24) and a condensate storage tank (26) are fixedly connected. At the upper end of the spray tower (24), a hose (25) is fixedly connected. The upper end of the condensate storage tank (26) is fixedly connected with the tee (20).

6. The tail gas absorption device for phenolic resin production according to claim 1, characterized in that: Both adsorption tubes (8) are slidably arranged inside the installation holes (7).

7. The tail gas absorption device for phenolic resin production according to claim 4, characterized in that: At the end of the exhaust pipe (23) away from the steam-water separator (22), it is fixedly connected with the spray tower (24).

8. The tail gas absorption device for phenolic resin production according to claim 5, characterized in that: At the end of the hose (25) away from the spray tower (24), it is fixedly connected with the sealing cover (11).

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