A purification tower device for acid exhaust gas

Abstract

The utility model discloses a kind of purification tower equipment for acidic waste gas, including the purification tower and pretreatment box of intercommunication, both top and bottom end are provided with water storage cavity and filter cavity, respectively for water storage and filter sewage, water storage cavity below in pretreatment box is equipped with universal nozzle and filter screen, for spraying and filtering waste gas, rotating water pipe is rotationally arranged in the water storage cavity below in purification tower, the bottom end of rotating water pipe is fixedly provided with mounting round plate, several spray heads are sequentially installed on mounting round plate from inside to outside, the water inlet of several spray heads is connected with rotating water pipe by water delivery pipe, cross support plate is fixedly provided below mounting round plate, cross support plate separates this place into four packing zones, each packing zone includes drive motor mounted on the outer wall of purification tower, drive shaft of drive motor is fixedly provided with packing frame, and the side wall of packing frame and cross support plate is detachably connected.

Description

Technical Field

[0001] This utility model relates to the field of purification tower equipment, specifically to a purification tower equipment for acidic waste gas. Background Technology

[0002] The emission of acidic waste gases is a common problem in industrial production processes. Acidic waste gases not only cause serious pollution to the atmospheric environment but also harm human health, such as causing respiratory diseases. Therefore, effective purification and treatment of acidic waste gases is of paramount importance.

[0003] Currently, acidic waste gas purification towers, also known as acidic waste gas packed towers, are a widely used and technologically mature waste gas treatment device. They utilize the large specific surface area provided by the packing layer to ensure full contact between the waste gas and the absorbent liquid, removing acidic components from the waste gas through neutralization reactions and other methods, resulting in high purification efficiency. In many industries such as chemical, metallurgical, and electronics, packed towers have solved the problem of acidic waste gas emissions for enterprises due to their excellent performance.

[0004] However, with the long-term operation of the acidic waste gas purification tower, certain defects were found in the integrated fixed packing layer during use. For example, the waste gas may contain particulate matter, oil mist and other impurities. These substances will gradually accumulate on the surface and in the gaps of the packing, clogging the packing layer. Or, when some areas of the packing layer are damaged and need to be replaced after a long period of use, the integrated fixed packing layer needs to be replaced or cleaned as a whole, which increases the cost of packing layer replacement.

[0005] Uneven liquid distribution in the spray system above the packing layer is also a serious problem. When the liquid is not evenly distributed across the entire packing layer, dry zones appear in some of the packing. These dry zones cannot participate in the reaction, leading to a decrease in purification efficiency. At the same time, channeling is exacerbated, creating a "short circuit" that allows exhaust gas to bypass some of the packing and pass directly through, reducing the purification effect. Furthermore, accelerated local scaling will affect the service life of the equipment and increase maintenance costs. Utility Model Content

[0006] To solve the above-mentioned technical problems, this utility model provides a purification tower device for acidic waste gas.

[0007] A purification tower device for acidic waste gas includes a purification tower and a pretreatment box that are connected to each other. Both have water storage chambers and filter chambers at their top and bottom, respectively for storing water and filtering wastewater. A universal spray nozzle and filter screen are installed below the water storage chamber in the pretreatment box for spraying and filtering waste gas. A rotating water pipe is rotatably installed below the water storage chamber in the purification tower. A mounting plate is fixedly installed at the bottom of the rotating water pipe. Several spray nozzles are installed sequentially from the inside to the outside on the mounting plate. The inlets of the spray nozzles are all connected to the rotating water pipe via water supply pipes. A cross support plate is fixedly installed below the mounting plate, dividing the purification tower into four packing zones. Each packing zone includes a drive motor installed on the outer wall of the purification tower. A packing frame is fixedly installed on the drive shaft of the drive motor. The packing frame is detachably connected to the side wall of the cross support plate. Each packing frame is crisscrossed with hanging plates, which divide the packing frame into several independent packing layers. Each independent packing layer is hung on a hanging plate.

[0008] Furthermore, a pH meter is installed in the water storage chamber of the purification tower, and a baffle demister is fixedly installed between the bottom of the water storage chamber and the mounting circular plate. An exhaust pipe is installed through the side wall of the purification tower at the outer end of the baffle demister.

[0009] Furthermore, a waterproof mounting box is fixedly installed on the bottom wall of the water storage chamber in the purification tower. A drive motor is also installed inside the waterproof mounting box. A drive gear is fixedly installed on the output shaft of the drive motor. The top end of the rotating water pipe passes through the waterproof mounting box and is connected to the rotating water connector. The other end of the rotating water connector is connected to the water storage chamber. A driven gear is fixedly installed on the outer wall of the rotating water pipe. The driven gear and the drive gear mesh with each other for transmission.

[0010] Furthermore, the mounting plate has several ventilation holes, and the water storage chamber in the pretreatment box is connected to the universal nozzle through a water supply pipe. Several water supply pipes are also connected to the bottom of the rotating water pipe. Booster pumps are installed on both the water supply pipe and the rotating water pipe in the pretreatment box.

[0011] Furthermore, a ceramic filter layer and an activated carbon filter layer are installed sequentially from top to bottom at the upper end of the filter chamber. The bottom end of the filter chamber is connected to the water storage chamber through a circulating water pipe. A circulating water pump is installed on the circulating water pipe. A drain pipe and a water inlet pipe are respectively installed through the bottom wall of the filter chamber and the top wall of the water storage chamber. An air inlet pipe and an air delivery pipe are respectively installed on the left and right sides of the pretreatment box. The filter screen is installed at the inner end of the air delivery pipe, and the outer end of the air delivery pipe is connected to the purification tower.

[0012] Furthermore, the cross support plate is fixedly installed on the inner wall of the purification tower, and four through slots are provided through the side wall of the purification tower. The packing frame can rotate and move in the through slots. Four sets of mounting blocks are fixedly installed on the outer wall of the purification tower, and each set of mounting blocks is equipped with a drive motor. Magnet blocks that attract each other are fixedly installed on the side wall of the packing frame and the side wall of the cross support plate.

[0013] Compared with existing technologies, the advantages of this invention are as follows: By adding four packing zones and using structured packing with large pore size and low resistance, several independent packing layers can be quickly hung on the mounting plate, allowing for rapid replacement of damaged individual packing layers without replacing the entire packing zone, thus saving replacement costs. The addition of a pretreatment box allows for the pre-filtration and spraying of larger particles or water-soluble impurities, effectively reducing the risk of packing blockage in the purification tower. By rotating the water pipe, in conjunction with the long and short water pipes and spray heads, the spray agent can be effectively and evenly distributed to all packing zones, increasing the effective mass transfer area and thereby improving purification efficiency. Attached Figure Description

[0014] Figure 1 This is a front view schematic diagram of the structure of this utility model;

[0015] Figure 2 This is a top view of the filler area 12 of the present invention;

[0016] Figure 3 This is a top view of the circular plate 8 installed in the structure of this utility model;

[0017] Figure 4 This is a schematic diagram of part A of the structure of this utility model;

[0018] Figure 5 This is a schematic diagram of part B of the structure of this utility model;

[0019] Figure 6 This is a schematic diagram of part C of the present invention;

[0020] Figure 7 This is a schematic diagram of part of the structure of this utility model (D).

[0021] In the diagram: 1. Purification tower; 2. Pretreatment box; 3. Water storage chamber; 4. Filter chamber; 5. Universal nozzle; 6. Filter screen; 7. Rotating water pipe; 8. Mounting plate; 9. Spray head; 10. Water supply pipe; 11. Cross support plate; 12. Packing area; 13. Drive motor; 14. Packing frame; 15. Hanging plate; 16. Independent packing layer; 17. Baffle plate demister; 18. Exhaust pipe; 19. pH meter; 20. Waterproof mounting box; 21. Drive gear; 22. Rotary water connector; 23. Driven gear; 24. Vent hole; 25. Booster pump; 26. Ceramic filter layer; 27. Activated carbon filter layer; 28. Circulating water pipe; 29. ​​Circulating water pump; 30. Drain pipe; 31. Water inlet pipe; 32. Air inlet pipe; 33. Air supply pipe; 34. Through groove; 35. Mounting block; 36. Magnet block. Detailed Implementation

[0022] To enable those skilled in the art to better understand the present invention, the technical solutions of the present invention 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 invention, and not all embodiments. Based on the embodiments of the present invention, all other embodiments obtained by those skilled in the art without creative effort should fall within the protection scope of the present invention.

[0023] It should be noted that the terms "first," "second," etc., in the specification, claims, and accompanying drawings of this utility model are used to distinguish similar objects and are not necessarily used to describe a specific order or sequence. It should be understood that such data can be interchanged where appropriate for the embodiments of the utility model described herein. Furthermore, the terms "comprising" and "having," and any variations thereof, are intended to cover non-exclusive inclusion; for example, a process, method, system, product, or apparatus that comprises a series of steps or units is not necessarily limited to those steps or units explicitly listed, but may include other steps or units not explicitly listed or inherent to such processes, methods, products, or apparatus.

[0024] In this invention, the terms "upper," "lower," "left," "right," "front," "rear," "top," "bottom," "inner," "outer," "middle," "vertical," "horizontal," "lateral," and "longitudinal" indicate the orientation or positional relationship based on the orientation or positional relationship shown in the accompanying drawings. These terms are primarily for the purpose of better describing this invention and its embodiments, and are not intended to limit the indicated device, element, or component to having a specific orientation, or to be constructed and operated in a specific orientation.

[0025] Furthermore, some of the aforementioned terms, besides indicating location or positional relationships, may also have other meanings. For example, the term "above" may, in certain circumstances, indicate a dependency or connection. Those skilled in the art can understand the specific meaning of these terms in this utility model based on the specific circumstances. Additionally, the term "multiple" should mean two or more.

[0026] It should be noted that, unless otherwise specified, the embodiments and features described in these embodiments of the present invention can be combined with each other. The following will refer to the accompanying drawings. Figures 1-7 The present invention will be described in detail with reference to the embodiments.

[0027] A purification tower device for acidic waste gas includes a purification tower 1 and a pretreatment box 2 connected in communication. Both are provided with a water storage chamber 3 and a filter chamber 4 at their top and bottom ends, respectively for storing water and filtering wastewater. A pH meter 19 is installed in the water storage chamber 3 of the purification tower 1, and a baffle plate demister 17 is fixedly installed between the bottom end of the water storage chamber 3 and the mounting circular plate 8. An exhaust pipe 18 is provided through the side wall of the purification tower 1 at the outer end of the baffle plate demister 17.

[0028] A drain pipe 30 and a water inlet pipe 31 are respectively installed through the bottom wall of the filter chamber 4 and the top wall of the water storage chamber 3. An air inlet pipe 32 and an air delivery pipe 33 are respectively installed on the left and right sides of the pretreatment tank 2. Cleaning solution and alkaline solution can be added to the water storage chamber 3 in the pretreatment tank 2 and the purification tower 1 through the water inlet pipe 31 for pretreatment spraying and purification of the packing layer of acidic waste gas. A pH meter 19 can monitor the pH value of the alkaline purification solution in the water storage chamber 3 in real time, and add alkaline solution as needed. Wastewater that has been used for a long time can be discharged to the outside through the drain pipe 30.

[0029] Acidic waste gas enters the pretreatment box 2 through the inlet pipe 32 for pretreatment, and then enters the gas transmission pipe 33 after spraying and filtration. It then enters the purification tower 1 to remove acidic impurities. The gas containing moisture passes through the baffle plate demister 17 and changes direction multiple times through airflow. The liquid droplets are separated by inertia, so that the gas after moisture separation is finally discharged to the outside through the exhaust pipe 18.

[0030] The pretreatment tank 2 has a universal nozzle 5 and a filter screen 6 installed below the water storage chamber 3 for spraying and filtering exhaust gas. The filter chamber 4 has a ceramic filter layer 26 and an activated carbon filter layer 27 installed from top to bottom. The water storage chamber 3 in the pretreatment tank 2 is also connected to the universal nozzle 5 through a water supply pipe 10. Several water supply pipes 10 are also connected to the bottom of the rotating water pipe 7. A booster water pump 25 is installed on both the water supply pipe 10 and the rotating water pipe 7 in the pretreatment tank 2.

[0031] As the exhaust gas enters the pretreatment tank 2 through the inlet pipe 32, the booster water pump 25 is started. The booster water pump 25 includes a water pump and a booster pump, which can transport the cleaning liquid in the water storage chamber 3 to the universal nozzle 5 through the water supply pipe 10. The universal nozzle 5 is rotatably mounted above the filter chamber 4 through the mounting bracket. By rotating the universal nozzle 5, the cleaning liquid is sprayed into the exhaust gas to spray and clean the particulate matter and water-soluble impurities in the exhaust gas. The filter screen 6 is set at the inner end of the air supply pipe 33, and the outer end of the air supply pipe 33 is connected to the purification tower 1. The filter screen 6 can filter out particulate impurities. After pretreatment, the exhaust gas is transported to the purification tower 1 through the air supply pipe 33.

[0032] Wastewater falls into the ceramic filter layer 26 and the activated carbon filter layer 27. After double filtration, particles and impurities are filtered out. The filtered water is stored at the bottom of the filter chamber 4. The bottom of the filter chamber 4 is connected to the water storage chamber 3 through the circulating water pipe 28. A circulating water pump 29 is installed on the circulating water pipe 28. When the circulating water pump 29 is turned on, the filtered water can be transported back to the water storage chamber 3 through the circulating water pipe 28 for repeated spraying and washing, thus saving water resources.

[0033] A rotating water pipe 7 is rotatably installed below the water storage chamber 3 in the purification tower 1. A mounting plate 8 is fixedly installed at the bottom of the rotating water pipe 7. Several ventilation holes 24 are provided through the mounting plate 8. Several spray heads 9 are installed on the mounting plate 8 from the inside to the outside. The water inlets of the spray heads 9 are all connected to the rotating water pipe 7 through water supply pipes 10. A waterproof mounting box 20 is fixedly installed on the bottom wall of the water storage chamber 3 in the purification tower 1. A drive motor 13 is also installed in the waterproof mounting box 20. A drive gear 21 is fixedly installed on the output shaft of the drive motor 13. The top end of the rotating water pipe 7 passes through the waterproof mounting box 20 and is connected to the rotating water connector 22. The other end of the rotating water connector 22 is connected to the water storage chamber 3. A driven gear 23 is fixedly installed on the outer wall of the rotating water pipe 7. The driven gear 23 and the drive gear 21 mesh with each other for transmission.

[0034] Start the drive motor 13 to drive the drive gear 21 to rotate. Since the driven gear 23 and the drive gear 21 mesh with each other, the driven gear 23 can drive the rotating water pipe 7 to rotate. Under the rotation of the rotating water connector 22, the rotating water pipe 7 can drive the mounting plate 8 to rotate.

[0035] Start the booster pump 25, which includes a pump and a booster pump. It can transport the alkaline purification liquid in the water storage chamber 3 to the rotating water pipe 7 through the rotating water connector 22, and then to the spray head 9 through several water pipes 10. The several water pipes 10 are evenly arranged on the mounting plate 8, which can ensure that when the mounting plate 8 rotates, the spray head 9 can spray the purification liquid evenly into the four packing areas 12, so that the packing material in the four packing areas 12 can fully contact the purification liquid.

[0036] A cross support plate 11 is fixedly installed below the mounting circular plate 8. The cross support plate 11 is fixedly installed on the inner wall of the purification tower 1 and has four through slots 34 through the side wall of the purification tower 1. The cross support plate 11 divides the purification tower 1 into four packing zones 12. Four sets of mounting blocks 35 are fixedly installed on the outer wall of the purification tower 1. Each set of mounting blocks 35 is equipped with a drive motor 13. Each packing zone 12 includes a drive motor 13 installed on the outer wall of the purification tower 1. A packing frame 14 is fixedly installed on the drive shaft of the drive motor 13.

[0037] When an individual packing layer 16 is damaged and needs to be replaced, or is severely clogged and needs to be cleaned, it can be quickly opened for replacement or cleaning. The packing frame 14 can rotate and move within the through groove 34. The packing frame 14 is detachably connected to the side wall of the cross support plate 11. Both the side wall of the packing frame 14 and the side wall of the cross support plate 11 are fixedly provided with mutually attractive magnet blocks 36. The drive motor 13 is a servo motor, which can rotate the drive motor 13 90 degrees in the direction of the outside of the purification tower 1, so that the drive motor 13 can drive the packing frame 14 to rotate 90 degrees outward, so that the mutually attractive magnet blocks 36 can separate from each other. That is, the four packing areas 12 can be rotated to the outside independently, and the individual packing layer 16 in each packing area 12 can be moved outward for easy replacement or cleaning.

[0038] Each packing rack 14 is provided with hanging plates 15 arranged in a crisscross pattern. The hanging plates 15 divide the packing rack 14 into several independent packing layers 16, and each independent packing layer 16 is hung on the hanging plate 15.

[0039] Each independent packing layer 16 can be quickly hung on the mounting plate 15, which allows for convenient and quick replacement or cleaning, saving both cost and time.

[0040] The above description is merely a preferred embodiment of this utility model and is not intended to limit the utility model. Various modifications and variations can be made to this utility model by those skilled in the art. Any modifications, equivalent substitutions, improvements, etc., made within the spirit and principles of this utility model should be included within the protection scope of this utility model.

Claims

1. A purification tower device for acidic waste gas, comprising a purification tower (1) and a pretreatment box (2) arranged in communication, characterized in that: Both are equipped with a water storage chamber (3) and a filter chamber (4) at their top and bottom, respectively for storing water and filtering sewage. A universal nozzle (5) and a filter screen (6) are installed below the water storage chamber (3) in the pretreatment tank (2) for spraying and filtering exhaust gas. A rotating water pipe (7) is rotatably installed below the water storage chamber (3) in the purification tower (1). A mounting plate (8) is fixedly installed at the bottom of the rotating water pipe (7). Several spray heads (9) are installed sequentially from the inside to the outside on the mounting plate (8). The inlets of the several spray heads (9) are all connected to the rotating water pipe (7) through a water supply pipe (10). A fixed... A cross-shaped support plate (11) is provided, which divides the purification tower (1) into four packing zones (12). Each packing zone (12) includes a drive motor (13) installed on the outer wall of the purification tower (1). A packing frame (14) is fixedly installed on the drive shaft of the drive motor (13). The packing frame (14) is detachably connected to the side wall of the cross-shaped support plate (11). Each packing frame (14) is provided with hanging plates (15) arranged in a crisscross pattern. The hanging plates (15) divide the packing frame (14) into several independent packing layers (16). Each independent packing layer (16) is hung on the hanging plate (15).

2. The purification tower equipment for acidic waste gas according to claim 1, characterized in that: A pH meter (19) is installed in the water storage chamber (3) of the purification tower (1), and a baffle plate demister (17) is fixedly installed between the bottom of the water storage chamber (3) and the mounting circular plate (8). An exhaust pipe (18) is installed through the side wall of the purification tower (1) at the outer end of the baffle plate demister (17).

3. The purification tower equipment for acidic waste gas according to claim 2, characterized in that: A waterproof mounting box (20) is fixedly installed on the bottom wall of the water storage chamber (3) in the purification tower (1). A drive motor (13) is also installed inside the waterproof mounting box (20). A drive gear (21) is fixedly installed on the output shaft of the drive motor (13). The top end of the rotating water pipe (7) passes through the waterproof mounting box (20) and is connected to the rotating water connector (22). The other end of the rotating water connector (22) is connected to the water storage chamber (3). A driven gear (23) is fixedly installed on the outer wall of the rotating water pipe (7). The driven gear (23) and the drive gear (21) mesh with each other for transmission.

4. The purification tower equipment for acidic waste gas according to claim 3, characterized in that: The mounting plate (8) has several ventilation holes (24) through it. The water storage chamber (3) in the pretreatment box (2) is also connected to the universal nozzle (5) through the water supply pipe (10). Several water supply pipes (10) are also connected to the bottom of the rotating water pipe (7). A booster water pump (25) is installed on both the water supply pipe (10) and the rotating water pipe (7) in the pretreatment box (2).

5. The purification tower equipment for acidic waste gas according to claim 4, characterized in that: A ceramic filter layer (26) and an activated carbon filter layer (27) are installed sequentially from top to bottom on the upper end of the filter chamber (4). The bottom end of the filter chamber (4) is connected to the water storage chamber (3) through a circulating water pipe (28). A circulating water pump (29) is installed on the circulating water pipe (28). A drain pipe (30) and a water inlet pipe (31) are respectively installed through the bottom wall of the filter chamber (4) and the top wall of the water storage chamber (3). An air inlet pipe (32) and an air delivery pipe (33) are respectively installed on the left and right sides of the pretreatment box (2). A filter screen (6) is installed at the inner end of the air delivery pipe (33). The outer end of the air delivery pipe (33) is connected to the purification tower (1).

6. The purification tower equipment for acidic waste gas according to claim 5, characterized in that: The cross support plate (11) is fixedly installed on the inner wall of the purification tower (1), and four through slots (34) are provided through the side wall of the purification tower (1). The packing frame (14) can rotate and move in the through slots (34). Four sets of mounting blocks (35) are fixedly installed on the outer wall of the purification tower (1). Each set of mounting blocks (35) is equipped with a drive motor (13). Magnet blocks (36) that attract each other are fixedly installed on the side wall of the packing frame (14) and the side wall of the cross support plate (11).

Images