A tobacco odor treatment persulfate oxidation tower system

Abstract

The utility model belongs to the field of environmental protection engineering, especially relate to a tobacco peculiar smell treatment persulfate oxidation tower system, including bottom plate, external connection pipe, drain pipe, spray tower, oxidation tower and connecting pipe no.

Description

Technical Field

[0001] This utility model belongs to the field of environmental engineering, and in particular relates to a persulfate oxidation tower system for treating tobacco odor. Background Technology

[0002] During the tobacco processing, drying, and cigarette production processes, the amount of flue gas emissions continues to rise. This flue gas is rich in various pollutants with strong, pungent odors; direct emission not only affects the production environment but may also adversely impact the surrounding atmospheric environment and human health. Therefore, effective purification of waste gas containing tobacco odors is of paramount importance.

[0003] Currently, conventional treatment methods mostly employ wet chemical oxidation processes, which directly introduce waste gas into a wet purification tower. By spraying persulfate solution, the strong oxidizing sulfate free radicals generated by its decomposition degrade some organic pollutants, achieving deodorization and purification. However, this process has a single treatment level, and the reaction efficiency is limited by gas-liquid mass transfer. It has a weak ability to remove complex components and is difficult to adapt to the characteristics of large fluctuations in the composition and high pollution load of tobacco processing waste gas, thus failing to meet the requirements of efficient and stable purification.

[0004] Therefore, there is a particular need for a persulfate oxidation tower system for treating tobacco odor in order to solve the above problems. Utility Model Content

[0005] In order to overcome the shortcomings of existing treatment processes that are single-level, difficult to effectively treat waste gas with complex composition and large load fluctuations, and have unstable purification effects, this utility model provides a persulfate oxidation tower system for treating tobacco odor.

[0006] This utility model is achieved through the following technical means: a persulfate oxidation tower system for treating tobacco odor, comprising a base plate, an external pipe, a drain pipe, a spray tower, an oxidation tower, a first connecting pipe, a multi-stage treatment assembly, a control box, an induced draft fan, a second connecting pipe, an exhaust pipe, and solenoid valves. The spray tower and the oxidation tower are arranged side by side on the top of the base plate. The external pipe is installed on one side of the lower part of the spray tower. Drain pipes are installed on both the lower side of the spray tower and the lower side of the oxidation tower. The first connecting pipe is installed between the upper part of the spray tower and the lower part of the oxidation tower. The multi-stage treatment assembly is set on the spray tower and the oxidation tower. The control box is also installed on the top of the base plate. The oxidation tower and the spray tower are distributed on both sides of the control box. The induced draft fan is installed on the top of the base plate and located to the left of the oxidation tower. The second connecting pipe is installed between the upper part of the oxidation tower and the suction end of the induced draft fan. The exhaust pipe is installed on the discharge outlet of the induced draft fan. Solenoid valves are installed on the first connecting pipe, the second connecting pipe, and the exhaust pipe. The induced draft fan and multiple solenoid valves are electrically connected to the control box.

[0007] Furthermore, the multi-stage treatment assembly includes a storage tank, a pump, a delivery pipe, nozzles, atomizing nozzles, a guide plate, a wire mesh demister, and a packing layer. Storage tanks are installed at the rear of both the spray tower and the oxidation tower. A pump is installed at the bottom of each storage tank, with its pumping end connected to the interior of the corresponding storage tank. The pump is electrically connected to the control box. A delivery pipe is fixed to the outlet end of each pump. The annular sections of two delivery pipes are located inside the spray tower and the oxidation tower, respectively. Multiple evenly distributed nozzles are fixed to the annular section of one delivery pipe, located inside the spray tower. Multiple evenly distributed atomizing nozzles are fixed to the annular section of the other delivery pipe, located inside the oxidation tower. The guide plate is installed inside the spray tower, below the nozzles. The wire mesh demister is also installed inside the spray tower, above the nozzles. Multiple vertically distributed packing layers are installed inside the oxidation tower, above the atomizing nozzles.

[0008] Furthermore, it also includes a connecting pipe, a rotating pipe, a filter basket, guide rods, a return spring, and locking rods. The connecting pipe is installed on the outer connecting pipe, and the filter basket is connected to the inside of the connecting pipe. The upper part of the filter basket is designed with a slope, with the highest point of the slope fitting against the highest point of the inner wall of the connecting pipe, and the lowest point of the slope being flush with the lowest point of the inner wall of the connecting pipe, forming a sloped air inlet. Multiple guide rods arranged in a ring array are fixed to the bottom of the filter basket, and a rotating pipe is slidably arranged between the multiple guide rods. Each guide rod is fitted with a return spring, and the two ends of the return spring are connected to the filter basket and the rotating pipe, respectively. Multiple locking rods are fixed to one end of the connecting pipe, and multiple locking slots arranged in a ring array are opened at one end of the rotating pipe. Each locking slot has a closed end and an open end. The number of locking rods is the same as the number of locking slots, and the locking rods slide into the closed end of the corresponding locking slot.

[0009] Furthermore, both the spray tower and the oxidation tower are equipped with embedded observation windows at the front.

[0010] Furthermore, the lower diameter of the guide plate is smaller than its upper diameter, forming a conical guide structure.

[0011] Furthermore, a handle is provided at the other end of the rotating tube.

[0012] Beneficial effects: 1. By adding a spray tower to the oxidation tower and integrating multi-stage treatment components, the waste gas is treated in stages through the synergistic effect of physical cleaning, chemical oxidation and physical adsorption. This effectively alleviates mass transfer limitations, significantly enhances the adaptability and purification efficiency of waste gas with complex composition and fluctuating load, and achieves efficient and stable comprehensive purification.

[0013] 2. By setting up connecting pipes, rotating pipes, filter baskets, guide rods, return springs, locking slots, and locking rods, when exhaust gas enters the spray tower through the external pipe, the filter basket can efficiently intercept particulate impurities in the exhaust gas in advance, effectively preventing impurities from entering subsequent treatment stages and affecting the treatment effect. At the same time, the cooperative design of the locking slots and locking rods facilitates quick disassembly of the filter basket for cleaning, reducing maintenance difficulty. Attached Figure Description

[0014] Figure 1 This is a three-dimensional structural diagram of the present invention.

[0015] Figure 2 This is a three-dimensional structural diagram of the components of this utility model, including the base plate, spray tower, and oxidation tower.

[0016] Figure 3 This is a partial cross-sectional view of the spray tower and oxidation tower components of this utility model.

[0017] Figure 4 This is a three-dimensional structural diagram of the components of this utility model, including the infusion tube, nozzle, and atomizing nozzle.

[0018] Figure 5 This is a three-dimensional structural diagram of the external pipe, solenoid valve, and connecting pipe of this utility model.

[0019] Figure 6 This is a partial cross-sectional view of the connecting pipe component of this utility model.

[0020] Figure 7 This is a three-dimensional structural diagram of the filter basket, guide rod, and return spring components of this utility model.

[0021] Attached reference numerals: 1. Base plate; 101. External pipe; 102. Drain pipe; 2. Spray tower; 3. Oxidation tower; 4. Connecting pipe one; 5. Storage tank; 51. Cap; 6. Pump; 7. Delivery pipe; 8. Nozzle; 9. Atomizing nozzle; 10. Guide plate; 11. Wire mesh demister; 12. Packing layer; 13. Control box; 14. Exhaust fan; 15. Connecting pipe two; 16. Exhaust pipe; 18. Solenoid valve; 19. Connecting pipe; 20. Rotating pipe; 21. Filter basket; 22. Guide rod; 23. Return spring; 24. Locking slot; 25. Locking rod. Detailed Implementation

[0022] Example: A persulfate oxidation tower system for treating tobacco odor, such as Figures 1-5As shown, the system includes a base plate 1, an external pipe 101, a drain pipe 102, a spray tower 2, an oxidation tower 3, a connecting pipe 4, a multi-stage treatment assembly, a control box 13, an induced draft fan 14, a connecting pipe 15, an exhaust pipe 16, and a solenoid valve 18. The spray tower 2 and oxidation tower 3 are arranged side-by-side and fixed to the top of the base plate 1 with bolts. Both the spray tower 2 and oxidation tower 3 have embedded observation windows at their front. The external pipe 101 is fixed to the lower right side of the spray tower 2 with bolts. Drain pipes 102 are fixed to the lower front sides of both the spray tower 2 and oxidation tower 3 with bolts. The connecting pipe 4 is fixed between the upper part of the spray tower 2 and the lower part of the oxidation tower 3 with bolts. The multi-stage treatment assembly is located between the spray tower 2 and the oxidation tower 3. On the oxidation tower 3, the control box 13 is also fixed to the top of the base plate 1 with bolts. The oxidation tower 3 and the spray tower 2 are distributed on the left and right sides of the control box 13. The induced draft fan 14 is fixed to the top of the base plate 1 with bolts and is located to the left of the oxidation tower 3. The second connecting pipe 15 is fixed to the upper part of the oxidation tower 3 between the suction end of the induced draft fan 14 with bolts. The exhaust pipe 16 is fixed to the exhaust outlet of the induced draft fan 14 with bolts. The first connecting pipe 4, the second connecting pipe 15 and the exhaust pipe 16 are all fixed with solenoid valves 18 with bolts. The induced draft fan 14 and the three solenoid valves 18 are all electrically connected to the control box 13. The control box 13 is an integrated electrical control box that can centrally control the induced draft fan 14 and the three solenoid valves 18.

[0023] like Figures 1-4 As shown, the multi-stage treatment assembly includes a storage tank 5, a pump 6, a delivery pipe 7, nozzles 8, atomizing nozzles 9, a guide plate 10, a wire mesh demister 11, and a packing layer 12. Storage tanks 5 are bolted to the rear of both the spray tower 2 and the oxidation tower 3. A pump 6 is bolted to the bottom of each storage tank 5. The pump 6's pumping end is connected to the interior of the corresponding storage tank 5. The pump 6 is electrically connected to the control box 13. A delivery pipe 7 is fixedly connected to the outlet of each pump 6. The annular sections of the two delivery pipes 7 are located inside the spray tower 2 and the oxidation tower 3, respectively. Multiple evenly distributed nozzles 8 are fixedly connected to the annular section of the right delivery pipe 7. 8 is located inside the spray tower 2. Multiple evenly distributed atomizing nozzles 9 are fixedly connected to the annular section of the left-side liquid delivery pipe 7. The atomizing nozzles 9 are located inside the oxidation tower 3. The guide plate 10 is fixed inside the spray tower 2 by bolts and is located below the nozzle 8. The lower diameter of the guide plate 10 is smaller than its upper diameter, forming a conical guide structure, which concentrates the airflow and then diffuses it upward, improving the uniformity of contact between the exhaust gas and the spray liquid. The wire mesh demister 11 is also fixed inside the spray tower 2 by bolts. The wire mesh demister 11 is located above the nozzle 8. Inside the oxidation tower 3, three vertically distributed filling layers 12 are fixed by bolts. The filling layers 12 are located above the atomizing nozzles 9.

[0024] like Figure 1 , Figure 5 , Figure 6 and Figure 7As shown, it also includes a connecting pipe 19, a rotating pipe 20, a filter basket 21, guide rods 22, a return spring 23, and a locking rod 25. The connecting pipe 19 is fixed to the outer connecting pipe 101 by bolts. The filter basket 21 is connected to the inside of the connecting pipe 19. The upper part of the filter basket 21 is designed with a slope, with the highest point of the slope fitting against the highest point of the inner wall of the connecting pipe 19, and the lowest point of the slope being flush with the lowest point of the inner wall of the connecting pipe 19, forming a sloped air inlet. Four guide rods 22 arranged in a circular array are fixedly connected to the bottom of the filter basket 21. A rotating spring is slidably arranged between the four guide rods 22. The moving tube 20 has a handle at its lower end. Each guide rod 22 is fitted with a return spring 23. The upper and lower ends of the return spring 23 are connected to the filter basket 21 and the rotating tube 20 respectively, providing a reset force for the rotating tube 20. The lower end of the connecting tube 19 is fixedly connected with four evenly distributed locking rods 25. The upper end of the rotating tube 20 has four locking slots 24 arranged in a ring array. Each locking slot 24 has a closed end and an open end. The number of locking rods 25 is the same as the number of locking slots 24, and the locking rods 25 slide into the closed end of the corresponding locking slot 24.

[0025] During use, the staff sequentially injects clean water into the right-side storage tank 5 and persulfate solution into the left-side storage tank 5. After the injection is completed, the three solenoid valves 18 are opened through the control box 13 to connect the connecting pipe 1 4, the connecting pipe 2 15 and the exhaust pipe 16. Then, the induced draft fan 14 and the two liquid pumps 6 are started. When the induced draft fan 14 is running, it generates negative pressure and draws in exhaust gas through the external pipe 101. When the exhaust gas enters the external pipe 101, it first passes through the connecting pipe 19 and is filtered and impurities removed by the filter basket 21 to intercept particulate impurities in the exhaust gas and prevent particulate impurities from entering the subsequent treatment process and affecting the treatment effect. The intercepted particulate impurities are collected in the filter basket 21. The filtered gas enters the lower part of the spray tower 2, then flows upwards and is divided by the guide plate 10. The divided gas reaches the nozzle 8 area. At this time, the right-side liquid pump 6 operates to draw clean water from the right-side storage tank 5 and sends the clean water into the right-side delivery pipe 7. Finally, it is sprayed out from the nozzle 8, performing preliminary spraying treatment on the gas to remove some odors. The gas continues to flow upwards after passing through the nozzle 8 area, passing through the wire mesh demister 11 to remove mist droplets from the gas. Then, the gas enters the lower part of the oxidation tower 3 through the connecting pipe 4, passing through the atomizing nozzle 9 area. At this time, the left-side liquid pump 6 operates to draw persulfate solution from the left-side storage tank 5, and... The persulfate solution is fed into the left infusion tube 7 and finally sprayed out by the atomizing nozzle 9. The persulfate solution comes into full contact with the gas and undergoes an oxidation reaction, further removing the tobacco odor. The gas continues to flow upward through the area of ​​the atomizing nozzle 9, passing through three filling layers 12 in sequence. The filling layers 12 are filled with purification materials (such as activated carbon), which can further adsorb and decompose the odor components in the gas, achieving deep purification of the gas. The gas after multi-stage treatment enters the connecting pipe 2 15 and is finally sent to the exhaust pipe 16 by the induced draft fan 14 for discharge. After the treatment is completed, the three solenoid valves 18, the induced draft fan 14 and the two liquid pumps 6 are closed.

[0026] When it is necessary to disassemble the filter basket 21, the operator holds the handle at the lower end of the rotating tube 20 and pushes the rotating tube 20 upward, so that the locking rod 25 slides to the lowest point of the locking groove 24. The return spring 23 is then compressed by the rotating tube 20. Then, the rotating tube 20 is rotated so that the locking rod 25 is aligned with the open end of the locking groove 24. At this time, the rotating tube 20 is pulled downward to disengage the locking rod 25 from the locking groove 24. The rotating tube 20 is pulled downward to disengage the filter basket 21 from the connecting tube 19, thus achieving the disassembly of the filter basket 21. After cleaning the filter basket 21, place the filter basket 21 into the connecting pipe 19. During the placement process, adjust the angle of the rotating pipe 20 so that the locking rod 25 is aligned with the open end of the locking groove 24. After alignment, push the rotating pipe 20 upward so that the locking rod 25 slides into the lowest point of the locking groove 24. At this time, the return spring 23 is compressed again by the rotating pipe 20. Then rotate the rotating pipe 20 in the opposite direction so that the locking rod 25 is aligned with the closed end of the locking groove 24. Finally, release the rotating pipe 20, and the return spring 23 returns to its original state, pushing the rotating pipe 20 downward to slide the locking rod 25 into the closed end of the locking groove 24, thus completing the installation of the filter basket 21.

Claims

1. A persulfate oxidation tower system for treating tobacco odor, characterized in that, The system includes a base plate (1), an external pipe (101), a drain pipe (102), a spray tower (2), an oxidation tower (3), a connecting pipe (4), a multi-stage treatment assembly, a control box (13), an induced draft fan (14), a connecting pipe (2) (15), an exhaust pipe (16), and a solenoid valve (18). The spray tower (2) and the oxidation tower (3) are arranged side by side on the top of the base plate (1). The external pipe (101) is installed on the lower side of the spray tower (2). Drain pipes (102) are installed on both the lower side of the spray tower (2) and the lower side of the oxidation tower (3). The connecting pipe (4) is installed between the upper part of the spray tower (2) and the lower part of the oxidation tower (3). The components are installed on the spray tower (2) and the oxidation tower (3). The control box (13) is also installed on the top of the base plate (1). The oxidation tower (3) and the spray tower (2) are distributed on both sides of the control box (13). The induced draft fan (14) is installed on the top of the base plate (1) and located to the left of the oxidation tower (3). The second connecting pipe (15) is installed between the upper part of the oxidation tower (3) and the suction end of the induced draft fan (14). The exhaust pipe (16) is installed on the exhaust outlet of the induced draft fan (14). Solenoid valves (18) are installed on the first connecting pipe (4), the second connecting pipe (15), and the exhaust pipe (16). The induced draft fan (14) and the multiple solenoid valves (18) are electrically connected to the control box (13). The multi-stage processing components include a storage tank (5), a pump (6), a delivery pipe (7), a nozzle (8), an atomizing nozzle (9), a guide plate (10), a wire mesh demister (11), and a packing layer (12). Storage tanks (5) are installed at the rear of both the spray tower (2) and the oxidation tower (3). A pump (6) is installed at the bottom of each storage tank (5). The pump's suction end is connected to the interior of the corresponding storage tank (5). The pump (6) is electrically connected to the control box (13). A delivery pipe (7) is fixed to the outlet end of each pump (6). The annular sections of the two delivery pipes (7) are located inside the spray tower (2) and the oxidation tower (3), respectively. One of the infusion pipes (7) has multiple uniformly distributed nozzles (8) fixedly attached to its annular section. The nozzles (8) are located inside the spray tower (2). Another infusion pipe (7) has multiple uniformly distributed atomizing nozzles (9) fixedly attached to its annular section. The atomizing nozzles (9) are located inside the oxidation tower (3). The guide plate (10) is installed inside the spray tower (2) and located below the nozzles (8). The wire mesh demister (11) is also installed inside the spray tower (2) and is located above the nozzles (8). The oxidation tower (3) has multiple vertically distributed filling layers (12) installed inside and located above the atomizing nozzles (9).

2. The persulfate oxidation tower system for treating tobacco odor according to claim 1, characterized in that, It also includes a connecting pipe (19), a rotating pipe (20), a filter basket (21), guide rods (22), a return spring (23), and a locking rod (25). The connecting pipe (19) is installed on the outer connecting pipe (101), and the filter basket (21) is connected to the inside of the connecting pipe (19). The upper part of the filter basket (21) is designed with a slope, with the highest point of the slope fitting the highest point of the inner wall of the connecting pipe (19), and the lowest point of the slope being flush with the lowest point of the inner wall of the connecting pipe (19), forming a sloped air inlet. Multiple guide rods (22) arranged in a ring array are fixed to the bottom of the filter basket (21). A rotating tube (20) is slidably arranged between 22), and a return spring (23) is sleeved on the outside of each guide rod (22). The two ends of the return spring (23) are connected to the filter basket (21) and the rotating tube (20) respectively. One end of the connecting tube (19) is fixed with multiple evenly distributed clamping rods (25). One end of the rotating tube (20) is provided with multiple clamping slots (24) arranged in a ring array. Each clamping slot (24) has a closed end and an open end. The number of clamping rods (25) is the same as the number of clamping slots (24), and the clamping rods (25) slide into the closed end of the corresponding clamping slot (24).

3. The persulfate oxidation tower system for treating tobacco odor according to claim 2, characterized in that, Both the spray tower (2) and the oxidation tower (3) have an embedded observation window at the front.

4. The persulfate oxidation tower system for treating tobacco odor according to claim 3, characterized in that, The lower diameter of the guide plate (10) is smaller than its upper diameter, forming a conical guide structure.

5. The persulfate oxidation tower system for treating tobacco odor according to claim 4, characterized in that, A handle is provided at the other end of the rotating tube (20).

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