PBT production tail gas purification and recovery equipment

Abstract

The utility model relates to tail gas purification recycling technical field, concretely for PBT production tail gas purification recycling equipment, including air inlet pipe, condensing component, air outlet pipe and collection component, the condensing component includes condensing box, the inside one end position department of condensing box is provided with first hose, one end of first hose is provided with heat exchange component, one side of heat exchange component is provided with second hose, the inside one end of condensing box is provided with first spring, the inside other end of condensing box is provided with second spring. The utility model discloses through heat exchange component to PBT production tail gas condensation, and heat exchange component shakes in the inside of condensing box in the condensation process, improves the export speed of condensate, avoids the impurity adhesion heat exchange component's inner wall, improves the cooling efficiency, separates through the hydrophobic air permeable net after condensation, filters the impurity in the gas after condensation through activated carbon filter block, is favorable to the completeness of PBT production tail gas recovery.

Description

Technical Field

[0001] This utility model relates to the field of exhaust gas purification and recovery technology, specifically to exhaust gas purification and recovery equipment for PBT production. Background Technology

[0002] The exhaust gas generated during PBT production mainly comes from polymerization, condensation, and melt extrusion processes. The exhaust gas contains volatile organic compounds with recycling value, such as tetrahydrofuran and methanol. At the same time, some components are toxic, flammable, and explosive. Therefore, exhaust gas purification and recycling can achieve resource recycling and reduce environmental risks.

[0003] However, most PBT production exhaust gas purification and recovery equipment currently on the market relies on the condensation and recovery of PBT production exhaust gas through internal circulation in cooling coils. This results in a large contact area between the PBT production exhaust gas and the cooling coils, leading to the adhesion of impurities within the exhaust gas, which hinders maintenance convenience and reduces the cooling efficiency of the cooling coils, thus compromising the completeness of PBT production exhaust gas recovery. Therefore, those skilled in the art have provided PBT production exhaust gas purification and recovery equipment to address the problems mentioned in the background section. Utility Model Content

[0004] The purpose of this invention is to provide a PBT production tail gas purification and recovery device to solve the problems mentioned in the background art.

[0005] To achieve the above objectives, this utility model provides the following technical solution:

[0006] The PBT production exhaust gas purification and recovery equipment includes an inlet pipe, a condenser component, an outlet pipe, and a collection component. The condenser component is located on one side of the inlet pipe, the outlet pipe is located on one side of the condenser component, and the collection component is located at the lower end of the outlet pipe. The condenser component includes a condenser box, with a first flexible hose at one end of the condenser box, a heat exchange component at one end of the first flexible hose, a second flexible hose at one side of the heat exchange component, a first spring at one end of the condenser box, and a second spring at the other end of the condenser box. The collection component includes a collection box, with a hydrophobic and breathable mesh at the upper end of the collection box, a liquid tank on one side of the collection box, a guide plate near the hydrophobic and breathable mesh inside the collection box, a mounting bracket below the guide plate, and an activated carbon filter block inside the mounting bracket.

[0007] As a further embodiment of this utility model: a cooling coil is provided at the lower end of one side of the condenser, and a liquid pump is installed at the lower end of the cooling coil; a circulation pipe is provided at the upper end of the other side of the condenser; a cooling fan is installed at the lower side of the condenser; an air inlet hood is provided on one side of the mounting bracket; a first air guide pipe is provided on one side of the air inlet hood; an air pump is installed at the lower end of the first air guide pipe; an air outlet hood is provided on one side of the collection box; a second air guide pipe is provided on one side of the air outlet hood; the heat exchange component includes a heat exchange tube; heat-conducting fins are provided on the outer side of the heat exchange tube; and a vibration motor is installed at the lower side of the heat exchange tube.

[0008] As a further embodiment of this utility model: the output end of the air inlet pipe is connected to the input end of the first hose, the output end of the first hose is connected to the input end of the heat exchange component, the output end of the heat exchange component is connected to the input end of the second hose, the output end of the second hose is connected to the input end of the air outlet pipe, the output end of the air outlet pipe is connected to the input end of the collection box, and the upper end of the collection box is connected to the upper end of the liquid tank.

[0009] As a further embodiment of this utility model: one end of the first spring is fixed to the outer side of the heat exchange component, one end of the second spring is fixed to the outer side of the heat exchange component, and the heat exchange component is fixed to the inner side of the condenser box by the first spring and the second spring.

[0010] As a further embodiment of this utility model: the lower end of the condenser is connected to the input end of the cooling coil, the output end of the cooling coil is connected to the input end of the liquid pump, the output end of the liquid pump is connected to the input end of the circulation pipe, and the output end of the circulation pipe is connected to the upper end of the condenser.

[0011] As a further embodiment of this utility model: the output end of the mounting bracket is connected to the input end of the air inlet hood, the output end of the air inlet hood is connected to the input end of the first air guide pipe, the output end of the first air guide pipe is connected to the input end of the air pump, the output end of the air pump is connected to the input end of the second air guide pipe, and the output end of the second air guide pipe is connected to the input end of the air outlet hood.

[0012] As a further improvement of this utility model: the output end of the first flexible tube is connected to the input end of the heat exchange tube, and the output end of the heat exchange tube is connected to the input end of the second flexible tube.

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

[0014] 1. The PBT production tail gas purification and recovery equipment of this utility model condenses the PBT production tail gas through heat exchange components. During the condensation process, the heat exchange components vibrate inside the condensation box, which increases the discharge speed of the condensate, avoids impurities adhering to the inner wall of the heat exchange components, facilitates maintenance, improves the heat exchange speed with the coolant, and improves the cooling efficiency.

[0015] 2. The condensed gas and liquid are separated by a hydrophobic and breathable mesh, and impurities in the condensed gas are filtered by an activated carbon filter block, which is beneficial to the completeness of PBT production tail gas recovery. Attached Figure Description

[0016] Figure 1 A schematic diagram of a PBT production exhaust gas purification and recovery device;

[0017] Figure 2 A perspective view of the condenser component in a PBT production tail gas purification and recovery equipment;

[0018] Figure 3 A perspective view of the collection components in a PBT production exhaust gas purification and recovery system;

[0019] Figure 4 A schematic diagram of the heat exchange components in a PBT production tail gas purification and recovery equipment.

[0020] In the diagram: 1. Inlet pipe; 2. Condensation component; 3. Outlet pipe; 4. Collection component; 5. Condensation box; 6. First hose; 7. Heat exchange component; 8. Second hose; 9. First spring; 10. Second spring; 11. Collection box; 12. Hydrophobic and breathable mesh; 13. Liquid tank; 14. Guide plate; 15. Mounting bracket; 16. Activated carbon filter block; 17. Cooling coil; 18. Liquid pump; 19. Circulation pipe; 20. Cooling fan; 21. Inlet hood; 22. First air guide pipe; 23. Air pump; 24. Second air guide pipe; 25. Outlet hood; 26. Heat exchange tube; 27. Heat-conducting fins; 28. Vibration motor. Detailed Implementation

[0021] Please see Figures 1-4In this embodiment of the invention, the PBT production exhaust gas purification and recovery equipment includes an inlet pipe 1, a condensing component 2, an outlet pipe 3, and a collecting component 4. The condensing component 2 is located on one side of the inlet pipe 1, the outlet pipe 3 is located on one side of the condensing component 2, and the collecting component 4 is located at the lower end of the outlet pipe 3. The condensing component 2 includes a condensing box 5. A first flexible hose 6 is provided at one end of the interior of the condensing box 5, a heat exchange component 7 is provided at one end of the first flexible hose 6, and a second flexible hose 8 is provided on one side of the heat exchange component 7. A first spring 9 is provided at one end of the interior of the condensing box 5, and a second spring 10 is provided at the other end of the interior of the condensing box 5. The collecting component 4 includes a collecting box 11. A hydrophobic and breathable mesh 12 is installed at the upper part of the inside of the collection box 11. A liquid tank 13 is installed on one side of the collection box 11. A guide plate 14 is installed inside the collection box 11 near the hydrophobic and breathable mesh 12. A mounting bracket 15 is installed on the lower side of the guide plate 14. An activated carbon filter block 16 is installed inside the mounting bracket 15. The output end of the air inlet pipe 1 is connected to the input end of the first hose 6. The output end of the first hose 6 is connected to the input end of the heat exchange component 7. The output end of the heat exchange component 7 is connected to the input end of the second hose 8. The output end of the second hose 8 is connected to the input end of the air outlet pipe 3. The output end of the air outlet pipe 3 is connected to the input end of the collection box 11. The upper part of the collection box 11 is connected to the liquid tank 13. The upper ends of the two springs are connected. One end of the first spring 9 is fixed to the outer side of the heat exchange component 7, and one end of the second spring 10 is fixed to the outer side of the heat exchange component 7. The heat exchange component 7 is fixed to the inside of the condenser box 5 by the first spring 9 and the second spring 10. First, cooling water is introduced into the inside of the condenser box 5. The input end of the air inlet pipe 1 is connected to the PBT production exhaust gas output pipe. Then, the exhaust gas is introduced into the inside of the first hose 6 through the air inlet pipe 1. The gas inside the first hose 6 is introduced into the inside of the heat exchange component 7. The heat exchange component 7 vibrates. The heat exchange component 7 shakes inside the condenser box 5 by the first spring 9 and the second spring 10. The water inside the condenser box 5 exchanges heat with the heat exchange component 7. For gas condensation operation, after condensation, the gas is introduced into the collection box 11 through the second hose 8 and the gas outlet pipe 3. The hydrophobic and breathable net 12 guides the liquid into the liquid tank 13. The gas enters the lower end of the collection box 11 through the hydrophobic and breathable net 12 and the guide plate 14. The air pump 23 operates to draw air from the mounting bracket 15 through the air inlet hood 21. The gas at the lower end of the collection box 11 enters the interior of the air inlet hood 21 after being filtered by the activated carbon filter block 16. Impurities are trapped on one side of the activated carbon filter block 16. The gas inside the air inlet hood 21 is discharged through the first air guide pipe 22, the air pump 23, the second air guide pipe 24 and the gas outlet hood 25. Finally, the liquid inside the liquid tank 13 is discharged, and the impurities inside the collection box 11 are cleaned.

[0022] exist Figure 2 , 3In section 4: A cooling coil 17 is installed at the lower end of one side of the condenser 5, and a liquid pump 18 is installed at the lower end of the cooling coil 17. A circulation pipe 19 is installed at the upper end of the other side of the condenser 5. A cooling fan 20 is installed at the lower side of the condenser 5. An air inlet hood 21 is installed on one side of the mounting bracket 15, and a first air guide pipe 22 is installed on one side of the air inlet hood 21. An air pump 23 is installed at the lower end of the first air guide pipe 22. An air outlet hood 25 is installed on one side of the collection box 11, and a second air guide pipe 24 is installed on one side of the air outlet hood 25. The heat exchange component 7 includes a heat exchange tube 26, and heat-conducting fins 27 are installed on the outer side of the heat exchange tube 26. A vibration motor 28 is installed at the lower side of the heat exchange tube 26. The lower end of the condenser 5 is connected to the cooling coil. The input end of cooling coil 17 is connected to the input end of liquid pump 18, the output end of liquid pump 18 is connected to the input end of circulation pipe 19, the output end of circulation pipe 19 is connected to the upper end of condenser 5, the output end of mounting bracket 15 is connected to the input end of air inlet hood 21, the output end of air inlet hood 21 is connected to the input end of first air guide pipe 22, the output end of first air guide pipe 22 is connected to the input end of air pump 23, the output end of air pump 23 is connected to the input end of second air guide pipe 24, the output end of second air guide pipe 24 is connected to the input end of air outlet hood 25, the output end of first hose 6 is connected to the input end of heat exchange tube 26, and the output end of heat exchange tube 26 is connected to the second hose The input ends of pipe 8 are connected. The exhaust gas is introduced into the first hose 6 through the intake pipe 1. The gas inside the first hose 6 is introduced into the heat exchange tube 26. The vibration motor 28 runs, causing the heat exchange tube 26 to vibrate. The heat exchange tube 26 vibrates inside the condenser 5 through the first spring 9 and the second spring 10. The heat-conducting fins 27 exchange heat with the heat exchange tube 26. The water inside the condenser 5 exchanges heat with the heat exchange tube 26 and the heat-conducting fins 27, condensing the gas. After condensation, the gas is introduced into the collection box 11 through the second hose 8 and the exhaust pipe 3. The liquid pump 18 runs, and the water inside the condenser 5 enters the cooling coil 17. The cooling fan 20 runs to cool the water inside the cooling coil 17. After cooling, the water flows out through the circulation pipe 19. The liquid and gas are introduced into the condenser 5. After condensation, they enter the collection component 4 through the second hose 8 and the outlet pipe 3. The hydrophobic and breathable mesh 12 guides the liquid into the liquid tank 13. The gas enters the lower end of the collection box 11 through the hydrophobic and breathable mesh 12 and the guide plate 14. The air pump 23 operates to draw air from the mounting bracket 15 through the air inlet hood 21. The gas at the lower end of the collection box 11 enters the air inlet hood 21 after being filtered by the activated carbon filter block 16. Impurities are trapped on one side of the activated carbon filter block 16. The gas inside the air inlet hood 21 is discharged through the first air guide pipe 22, the air pump 23, the second air guide pipe 24 and the outlet hood 25. Finally, the liquid inside the liquid tank 13 is discharged, and the impurities inside the collection box 11 are cleaned.

[0023] The working principle of this utility model is as follows: First, cooling water is introduced into the interior of the condenser 5. The input end of the air inlet pipe 1 is connected to the PBT production exhaust gas output pipe. Then, the exhaust gas is introduced into the interior of the first hose 6 through the air inlet pipe 1. The gas inside the first hose 6 is introduced into the interior of the heat exchange tube 26. The vibration motor 28 runs, causing the heat exchange tube 26 to vibrate. The heat exchange tube 26 vibrates inside the condenser 5 through the first spring 9 and the second spring 10. The heat-conducting fins 27 exchange heat with the heat exchange tube 26. The water inside the condenser 5 exchanges heat with the heat exchange tube 26 and the heat-conducting fins 27, thus condensing the gas. After condensation, the gas is introduced into the interior of the collection box 11 through the second hose 8 and the exhaust pipe 3. The liquid pump 18 runs, and the water inside the condenser 5 enters the interior of the cooling coil 17. The cooling fan 20 runs to cool the gas. The water inside the coil 17 is cooled, and after cooling, the water is introduced into the condenser 5 through the circulation pipe 19. The condensed liquid and gas enter the collection component 4 through the second hose 8 and the gas outlet pipe 3. The hydrophobic and breathable net 12 guides the liquid into the liquid tank 13. The gas enters the lower end of the collection box 11 through the hydrophobic and breathable net 12 and the guide plate 14. The air pump 23 operates to draw air from the mounting bracket 15 through the air inlet hood 21. The gas at the lower end of the collection box 11 enters the interior of the air inlet hood 21 after being filtered by the activated carbon filter block 16. Impurities are trapped on one side of the activated carbon filter block 16. The gas inside the air inlet hood 21 is discharged through the first air guide pipe 22, the air pump 23, the second air guide pipe 24 and the gas outlet hood 25. Finally, the liquid inside the liquid tank 13 is discharged, and the impurities inside the collection box 11 are cleaned.

[0024] The above description is only a preferred embodiment of the present utility model, but the protection scope of the present utility model is not limited thereto. Any equivalent substitutions or changes made by those skilled in the art within the technical scope disclosed in the present utility model, based on the technical solution and the inventive concept of the present utility model, should be included within the protection scope of the present utility model.

Claims

1. A PBT production exhaust gas purification and recovery device, comprising an inlet pipe (1), a condenser (2), an outlet pipe (3), and a collection component (4), wherein the condenser (2) is located on one side of the inlet pipe (1), the outlet pipe (3) is located on one side of the condenser (2), and the collection component (4) is located at the lower end of the outlet pipe (3), characterized in that, The condensing component (2) includes a condensing box (5). A first hose (6) is provided at one end of the condensing box (5). A heat exchange component (7) is provided at one end of the first hose (6). A second hose (8) is provided on one side of the heat exchange component (7). A first spring (9) is provided at one end of the condensing box (5). A second spring (10) is provided at the other end of the condensing box (5). The collecting component (4) includes a collecting box (11). A hydrophobic and breathable mesh (12) is provided at the upper end of the collecting box (11). A liquid tank (13) is provided on one side of the collecting box (11). A guide plate (14) is provided near the hydrophobic and breathable mesh (12) inside the collecting box (11). A mounting bracket (15) is provided on the lower side of the guide plate (14). An activated carbon filter block (16) is provided inside the mounting bracket (15).

2. The PBT production tail gas purification and recovery equipment according to claim 1, characterized in that, A cooling coil (17) is provided at the lower end of one side of the condenser (5), and a liquid pump (18) is installed at the lower end of the cooling coil (17). A circulation pipe (19) is provided at the upper end of the other side of the condenser (5). A cooling fan (20) is installed on the lower side of the condenser (5). An air inlet hood (21) is provided on one side of the mounting bracket (15). A first air guide pipe (22) is provided on one side of the air inlet hood (21). An air pump (23) is installed at the lower end of the first air guide pipe (22). An air outlet hood (25) is provided on one side of the collection box (11). A second air guide pipe (24) is provided on one side of the air outlet hood (25). The heat exchange component (7) includes a heat exchange tube (26). A heat-conducting fin (27) is provided on the outer side of the heat exchange tube (26). A vibration motor (28) is installed on the lower side of the heat exchange tube (26).

3. The PBT production tail gas purification and recovery equipment according to claim 1, characterized in that, The output end of the air inlet pipe (1) is connected to the input end of the first hose (6), the output end of the first hose (6) is connected to the input end of the heat exchange component (7), the output end of the heat exchange component (7) is connected to the input end of the second hose (8), the output end of the second hose (8) is connected to the input end of the air outlet pipe (3), the output end of the air outlet pipe (3) is connected to the input end of the collection box (11), and the upper end of the collection box (11) is connected to the upper end of the liquid tank (13).

4. The PBT production tail gas purification and recovery equipment according to claim 1, characterized in that, One end of the first spring (9) is fixed to the outer side of the heat exchange component (7), and one end of the second spring (10) is fixed to the outer side of the heat exchange component (7). The heat exchange component (7) is fixed to the inner side of the condenser (5) by the first spring (9) and the second spring (10).

5. The PBT production tail gas purification and recovery equipment according to claim 2, characterized in that, The lower end of the condenser (5) is connected to the input end of the cooling coil (17), the output end of the cooling coil (17) is connected to the input end of the liquid pump (18), the output end of the liquid pump (18) is connected to the input end of the circulation pipe (19), and the output end of the circulation pipe (19) is connected to the upper end of the condenser (5).

6. The PBT production tail gas purification and recovery equipment according to claim 2, characterized in that, The output end of the mounting bracket (15) is connected to the input end of the air intake hood (21), the output end of the air intake hood (21) is connected to the input end of the first air guide pipe (22), the output end of the first air guide pipe (22) is connected to the input end of the air pump (23), the output end of the air pump (23) is connected to the input end of the second air guide pipe (24), and the output end of the second air guide pipe (24) is connected to the input end of the air outlet hood (25).

7. The PBT production tail gas purification and recovery equipment according to claim 2, characterized in that, The output end of the first hose (6) is connected to the input end of the heat exchange tube (26), and the output end of the heat exchange tube (26) is connected to the input end of the second hose (8).

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