Chemical gas absorption tower

Abstract

The utility model discloses a chemical gas absorption tower, and particularly relates to the field of absorption towers. The chemical gas absorption tower comprises the purification tower and the gas inlet pipeline vertically communicated with one side of the purification tower, a fan cover is arranged at the top of the purification tower, a fan is arranged in the fan cover, and a spraying purification system is arranged in the purification tower. The spray purification system comprises a rotary spray pipe rotationally connected to the inner wall of the purification tower in a sealing manner, a plurality of spray heads fixedly communicated to the inner surface of the rotary spray pipe and a fixed pipe fixedly connected to the upper surface of the rotary spray pipe, and a driving unit for driving the rotary spray pipe to rotate is arranged on the purification tower. According to the utility model, the problems that the purification effect and durability are easily influenced due to the fact that the purification liquid wets the filler in the conventional absorption tower, the utilization rate of the filler is easily insufficient when the gas is purified by the filler, and the spraying liquid for purifying the gas is inconvenient to recycle are solved.

Description

Technical Field

[0001] The utility model relates to the field of absorption towers, and more specifically, to a chemical gas absorption tower. Background Art

[0002] Absorption tower is a device that realizes absorption operation. It is divided into three categories according to the gas-liquid contact form. The first category is the plate tower, bubbling absorption tower, and stirring bubbling absorption tower in which the gas is dispersed in the liquid phase in the form of bubbles. In the chemical industry, chemical gases generated by chemical industry need to be evolved and treated through absorption towers.

[0003] Patent No. CN220589405U discloses an asphalt flue gas absorption tower, including a tower body, a mounting box is fixedly connected inside the tower body, a filter plate is slidably connected inside the mounting box, a mounting column is fixedly connected to the outer wall of the filter plate, a connecting rod is fixedly connected to the outer wall of the mounting column, a sliding block is slidably connected to the outer wall of the connecting rod, a mounting block is fixedly connected to the outer wall of the connecting rod near the mounting box, a sliding groove is provided inside the mounting box, and mounting grooves are provided on both the left and right sides of the mounting box. In the utility model, the filter plate is quickly disassembled, so that it is convenient to clean the filter plate, and through the rotary spraying of the absorbent, the rotary spraying system can evenly spray the absorbent into the absorption tower in a rotary manner so that the absorbent can fully contact the flue gas, thereby improving the working efficiency of the absorption tower.

[0004] In the above patent, the inventor believes that when the patent is in use, although the chemical gas purification treatment is completed by spraying absorbent and filler structure, the filler is located directly below the spray structure, so the liquid soaking on the filler is likely to affect the purification effect and durability; in addition, the gas to be treated passes directly through the filler, and because the gas passing area is uncontrollable, the filler utilization rate is likely to be insufficient when purifying the gas; finally, the spray liquid used for gas purification is not easy to recycle. Utility Model Content

[0005] In order to overcome the above-mentioned defects of the prior art, the utility model provides a chemical gas absorption tower. The technical problems to be solved by the utility model are: in the lower absorption tower, the purification liquid soaking on the filler is easy to affect the purification effect and durability, the filler is prone to insufficient filler utilization when purifying the gas, and the spray liquid used for gas purification is not convenient for recycling.

[0006] To achieve the above-mentioned purpose, the utility model provides the following technical solutions: a chemical gas absorption tower, comprising a purification tower and an air intake duct vertically connected to one side of the purification tower, a wind hood is arranged on the top of the purification tower, and a fan is arranged in the wind hood, a spray purification system is arranged in the purification tower, and the spray purification system comprises a rotating nozzle connected to the inner wall of the purification tower in a sealed rotation, a plurality of nozzles fixedly connected to the inner surface of the rotating nozzle, and a fixed pipe fixedly connected to the upper surface of the rotating nozzle, and a driving unit for driving the rotating nozzle to rotate is arranged on the purification tower;

[0007] A pair of half-shaped filler racks are provided in the air intake duct, a filler layer is provided in the filler racks, a mounting structure is provided on each filler rack and the air intake duct, a flow divider is sealed and rotatably connected in the air intake duct, and an air intake plate is fixedly connected to the side of the flow divider, and the air intake plate corresponds to a side position of the filler layer;

[0008] A multi-position transmission assembly is fixedly connected to the fixed pipe, and the multi-position transmission assembly includes three transmission stations. The first transmission station is fixedly connected to the fixed pipe, the second transmission station is fixedly connected to the diverter hood, and the third transmission station is fixedly connected with a centrifugal screen cylinder, and the centrifugal screen cylinder is located directly below the rotating nozzle.

[0009] In a preferred embodiment, the spray purification system also includes a rotary joint arranged on the upper surface of the fixed pipe and a purification liquid inlet pipe arranged at one end of the rotary joint, the purification liquid inlet pipe is fixedly passed through the purification tower, and the purification liquid inlet pipe is rotatably connected to the fixed pipe through a rotary joint.

[0010] In a preferred embodiment, the driving unit includes a motor fixedly connected to the purification tower, a gear four fixedly connected to the output end of the motor, and a gear ring meshingly connected to the gear four, and the gear ring is fixedly connected to the lower surface of the rotating nozzle.

[0011] In a preferred embodiment, the mounting structure includes a fixing plate fixedly connected to the side of the filling rack, a pull plate fixedly connected to the fixing plate, and a fastening bolt threadedly passing through the pull plate. The pull plate movably passes through the air intake pipe, the fastening bolts arranged on the pull plate are threadedly connected to the air intake pipe, and the outer surface of the air intake pipe is provided with a mounting groove for the filling rack and the pull plate to be inserted.

[0012] In a preferred embodiment, the multi-position transmission assembly includes a transmission rod 1 fixedly connected to the lower surface of the fixed tube, a gear 1 fixedly connected to one end of the transmission rod 1, a gear 2 meshingly connected to the gear 1, a transmission rod 2 fixedly connected to the gear 2, a gear 3 meshingly connected to the gear 2 and a transmission rod 3 fixedly connected to the gear 3, the end of the transmission rod 2 facing away from the gear 2 is fixedly connected to the center of the diverter hood, and the end of the transmission rod 3 facing away from the gear 3 is fixedly connected to the centrifugal screen cylinder.

[0013] In a preferred embodiment, a first support rod for rotationally supporting the transmission rod one and the transmission rod two is provided in the purification tower, a second support rod for rotationally supporting the transmission rod three is provided in the air intake pipe, a sealed bearing is provided on the transmission rod two, and a slot for clamping the sealed bearing is provided at the axis center of the packing frame.

[0014] In a preferred embodiment, a liquid collecting cylinder is fixedly connected to the interior of the purification tower, the centrifugal screen cylinder is rotatably connected to the liquid collecting cylinder, a liquid discharge pipe is fixedly penetrated through the liquid collecting cylinder and the purification tower, and a manhole is opened on the purification tower.

[0015] Technical effects and advantages of the utility model:

[0016] 1. A chemical gas absorption tower of the utility model vertically arranges the purification tower and the air inlet pipe, and ensures the connection between the two by changing the working positions of the packing layer and the spray purification system, so that the packing layer is not easily soaked by the gas purification absorbent, which can improve the quality and durability of the gas purified by the packing layer.

[0017] 2. A chemical gas absorption tower of the utility model can drive the diverter hood to rotate through a multi-position transmission component during the process of rotary spraying of gas absorbent in the spray purification system. Since the diverter hood is sealed and rotatably connected to the air inlet pipe, the chemical gas entering the air inlet pipe can contact the packing layer through the air inlet plate. Since the air inlet plate can rotate around the center of a pair of packing layers, the air inlet plate can evenly divert the chemical gas and the packing layer, thereby improving the utilization rate of the total purification area of ​​the packing layer.

[0018] 3. A chemical gas absorption tower of the utility model arranges a centrifugal screen drum below a spray purification system and drives the centrifugal screen drum to rotate centrifugally through a multi-position transmission assembly, so that the centrifugal screen drum can quickly filter impurities in the gas absorbent to achieve the effect of solid-liquid separation, thus meeting the characteristics of recycling and reuse. BRIEF DESCRIPTION OF THE DRAWINGS

[0019] In order to more clearly illustrate the implementation of the utility model or the technical solution in the prior art, the following is a brief introduction to the drawings required for the implementation or the prior art description. Obviously, the drawings in the following description are only exemplary, and for ordinary technicians in this field, other implementation drawings can be derived from the provided drawings without creative work.

[0020] Figure 1 It is a schematic diagram of the overall structure of the utility model.

[0021] Figure 2 For this utility model Figure 1 sectional view of .

[0022] Figure 3 It is a structural schematic diagram of the installation structure and the filling frame of the utility model.

[0023] Figure 4 It is a structural schematic diagram of the spray purification system of the utility model.

[0024] Figure 5 It is a structural schematic diagram of a multi-position transmission component of the utility model.

[0025] Figure 6 It is a structural schematic diagram of the centrifugal screen drum of the present utility model.

[0026] The accompanying drawings are marked as follows: 1. purification tower; 2. air intake duct; 3. wind hood; 31. fan; 4. spray purification system; 41. rotating nozzle; 42. nozzle; 43. fixed pipe; 44. rotating joint; 45. purification liquid inlet pipe; 5. packing rack; 51. packing layer; 6. mounting structure; 61. fixing plate; 62. pull plate; 63. fastening bolts; 7. diverter hood; 72. air intake plate; 8. multi-position transmission assembly; 81. transmission rod one; 82. gear one; 83. gear two; 84. transmission rod two; 85. gear three; 86. transmission rod three; 9. centrifugal screen cylinder; 10. motor; 11. gear four; 12. gear ring; 13. manhole; 14. sealed bearing; 15. liquid collecting cylinder; 151. drain pipe. DETAILED DESCRIPTION

[0027] The following is a specific embodiment of the present invention. People familiar with the technology can easily understand the other advantages and functions of the present invention from the contents disclosed in this specification. Obviously, the described embodiment is a part of the present invention, not all of the embodiments. Based on the embodiments of the present invention, all other embodiments obtained by ordinary technicians in this field without creative work are within the scope of protection of the present invention.

[0028] Combined with reference Figure 1-Figure 6The utility model provides a chemical gas absorption tower, comprising a purification tower 1 and an air intake pipe 2 vertically connected to one side of the purification tower 1, a wind hood 3 is arranged on the top of the purification tower 1, and a fan 31 is arranged in the wind hood 3, the fan 31 can conveniently allow chemical gas to enter the purification tower 1 through the air intake pipe 2, a spray purification system 4 is arranged in the purification tower 1, the spray purification system 4 comprises a rotating nozzle 41 sealed and rotatably connected to the inner wall of the purification tower 1, a plurality of nozzles 42 fixedly connected to the inner surface of the rotating nozzle 41 and a fixed pipe 43 fixedly connected to the upper surface of the rotating nozzle 41, the nozzle 42 can be used to spray chemical gas absorbent, and because the nozzle 42 is arranged around the inner side of the rotating nozzle 41, and the rotating nozzle 41 is rotatable, when the chemical gas passes through the inner side of the rotating nozzle 41, the chemical gas absorbent can fully contact with the chemical gas, so that the thoroughness of gas purification can be improved, and a driving unit for driving the rotating nozzle 41 to rotate is arranged on the purification tower 1.

[0029] The spray purification system 4 also includes a rotary joint 44 arranged on the upper surface of the fixed pipe 43 and a purified liquid inlet pipe 45 arranged at one end of the rotary joint 44. The purified liquid inlet pipe 45 is fixedly passed through the purification tower 1. The purified liquid inlet pipe 45 is rotatably connected to the fixed pipe 43 through the rotary joint 44. The purified liquid inlet pipe 45 can be externally connected to a pump body for inputting gas absorbent, so that the absorbent can enter the rotating nozzle 41 through the purified liquid inlet pipe 45 and the fixed pipe 43 in turn. By utilizing the sealing rotation characteristics of the rotary joint 44, the rotating nozzle 41 can rotate stably and spray the absorbent.

[0030] The driving unit includes a motor 10 fixedly connected to the purification tower 1, a gear 4 11 fixedly connected to the output end of the motor 10, and a gear ring 12 meshingly connected to the gear 4 11, and the gear ring 12 is fixedly connected to the lower surface of the rotating nozzle 41.

[0031] Specifically, by starting the motor 10, it can drive the gear four 11 to rotate, so that the gear four 11 can drive the gear ring 12 to rotate, and the rotating nozzle 41 can perform a rotating spraying action in the purification tower 1.

[0032] A pair of half-shaped packing racks 5 are arranged in the air intake duct 2, and a packing layer 51 is arranged in the packing racks 5. A mounting structure 6 is arranged on each packing rack 5 and the air intake duct 2. A diverter hood 7 is sealed and rotatably connected in the air intake duct 2, and an air intake plate 72 is fixedly connected to the side of the diverter hood 7. The air intake plate 72 corresponds to a side position of the packing layer 51. When the diverter hood 7 rotates, due to the sealed and rotatable connection between the diverter hood 7 and the air intake duct 2, the chemical gas passing through the diverter hood 7 can directly contact the packing layer 51 through the air intake plate 72. Because the air intake plate 72 can rotate around the center of a pair of packing layers 51, the air intake plate 72 can evenly divert the chemical gas and the packing layer 51, thereby improving the utilization rate of the total purification area of ​​the packing layer 51.

[0033] The mounting structure 6 includes a fixing plate 61 fixedly connected to the side of the filling rack 5, a pulling plate 62 fixedly connected to the fixing plate 61 and a fastening bolt 63 threadedly penetrating the pulling plate 62. The pulling plate 62 movably penetrates the air intake pipe 2. The fastening bolt 63 arranged on the pulling plate 62 is threadedly connected to the air intake pipe 2. The outer surface of the air intake pipe 2 is provided with a mounting groove for the filling rack 5 and the pulling plate 62 to be inserted. In the present application, a pull ring can be provided on the pulling plate 62.

[0034] Specifically, the packing rack 5 is pushed in and out through the installation groove by the pull plate 62 , and the tightening bolts 63 can realize a threaded disassembly connection between the pull plate 62 and the intake pipe 2 , so as to facilitate the replacement of the packing layer 51 in the packing rack 5 in the intake pipe 2 .

[0035] A multi-position transmission assembly 8 is fixedly connected to the fixed pipe 43, and the multi-position transmission assembly 8 includes three transmission stations. The first transmission station is fixedly connected to the fixed pipe 43, the second transmission station is fixedly connected to the diverter hood 7, and the third transmission station is fixedly connected to a centrifugal screen drum 9. The centrifugal screen drum 9 is located directly below the rotating nozzle 41. The centrifugal screen drum 9 can receive the absorbent dropped from the rotating nozzle 41, and can be used to perform solid-liquid separation on the absorbent.

[0036] The multi-position transmission assembly 8 includes a transmission rod 1 81 fixedly connected to the lower surface of the fixed tube 43, a gear 1 82 fixedly connected to one end of the transmission rod 1 81, a gear 2 83 meshingly connected to the gear 1 82, a transmission rod 2 84 fixedly connected to the gear 2 83, a gear 3 85 meshingly connected to the gear 2 83 and a transmission rod 3 86 fixedly connected to the gear 3 85, one end of the transmission rod 2 84 facing away from the gear 2 83 is fixedly connected to the center of the diverter cover 7, and one end of the transmission rod 3 86 facing away from the gear 3 85 is fixedly connected to the centrifugal screen drum 9.

[0037] Specifically, when the rotating nozzle 41 rotates, it can drive the transmission rod 1 81 to rotate through the fixed tube 43. Under the action of the meshing of gear 1 82, gear 2 83 and gear 3 85, the transmission rod 2 84 and the transmission rod 3 86 can respectively provide power output positions. The transmission rod 2 84 can drive the diverter hood 7 to rotate, thereby ensuring uniform and sufficient contact between the chemical gas and the packing layer 51. At the same time, the centrifugal screen drum 9 can receive the absorbent dropped from the rotating nozzle 41, and the transmission rod 3 86 can drive the centrifugal screen drum 9 to perform centrifugal screening movement, thereby accelerating the solid-liquid separation effect of the chemical gas absorbent.

[0038] A first support rod for rotationally supporting the transmission rod 1 81 and the transmission rod 2 84 is provided in the purification tower 1, and a second support rod for rotationally supporting the transmission rod 3 86 is provided in the air intake duct 2. The first support rod and the second support rod can be used to increase the rotation stability of the transmission rod structure. A sealing bearing 14 is provided on the transmission rod 2 84, and a slot for clamping the sealing bearing 14 is provided at the axis of the packing rack 5. When a pair of packing racks 5 are installed in the air intake duct 2, the packing rack 5 presses the sealing bearing 14, and the sealing bearing 14 can increase the sealing performance of the connection between the pair of packing racks 5, while satisfying the rotation of the seal of the transmission rod 2 84.

[0039] A liquid collecting cylinder 15 is fixedly connected to the interior of the purification tower 1, and the centrifugal screen drum 9 is rotatably connected to the liquid collecting cylinder 15. A drainage pipe 151 is fixedly penetrated through the liquid collecting cylinder 15 and the purification tower 1, and a valve can be provided on the drainage pipe 151. The cooperation between the liquid collecting cylinder 15 and the drainage pipe 151 can facilitate the collection of screened chemical gas absorbents. A manhole 13 is opened on the purification tower 1, and a manhole cover is provided at the manhole 13. The position of the manhole 13 can facilitate the inspection of the interior of the purification tower 1, and provide convenience for cleaning impurities in the centrifugal screen drum 9.

[0040] It is worth noting that in the present application, the rotating nozzle 41 and the diverter hood 7 are both connected in a sealed rotation manner via a sealing ring.

Claims

1. A chemical gas absorption tower, comprising a purification tower (1) and an air intake pipe (2) vertically connected to one side of the purification tower (1), a wind hood (3) is arranged on the top of the purification tower (1), and a fan (31) is arranged in the wind hood (3), and a spray purification system (4) is arranged in the purification tower (1), characterized in that: The spray purification system (4) comprises a rotating nozzle (41) which is sealed and rotatably connected to the inner wall of the purification tower (1), a plurality of nozzles (42) which are fixedly connected to the inner surface of the rotating nozzle (41), and a fixed pipe (43) which is fixedly connected to the upper surface of the rotating nozzle (41), and the purification tower (1) is provided with a driving unit for driving the rotating nozzle (41) to rotate; A pair of half-shaped filling frames (5) are arranged in the air intake duct (2), a filling layer (51) is arranged in the filling frames (5), a mounting structure (6) is arranged on each filling frame (5) and the air intake duct (2), a flow divider (7) is sealingly rotatably connected in the air intake duct (2), a side of the flow divider (7) is fixedly connected to an air intake plate (72), and the air intake plate (72) is located at a position corresponding to one side of the filling layer (51); A multi-position transmission assembly (8) is fixedly connected to the fixed pipe (43), and the multi-position transmission assembly (8) includes three transmission stations, wherein the first transmission station is fixedly connected to the fixed pipe (43), the second transmission station is fixedly connected to the diverter hood (7), and the third transmission station is fixedly connected to a centrifugal screen drum (9), and the centrifugal screen drum (9) is located directly below the rotating nozzle (41).

2. A chemical gas absorption tower according to claim 1, characterized in that: The spray purification system (4) further comprises a rotary joint (44) arranged on the upper surface of the fixed pipe (43) and a purification liquid inlet pipe (45) arranged at one end of the rotary joint (44); the purification liquid inlet pipe (45) is fixedly passed through the purification tower (1); and the purification liquid inlet pipe (45) is rotatably connected to the fixed pipe (43) via the rotary joint (44).

3. A chemical gas absorption tower according to claim 1, characterized in that: The driving unit comprises a motor (10) fixedly connected to the purification tower (1), a gear four (11) fixedly connected to the output end of the motor (10), and a gear ring (12) meshingly connected to the gear four (11), wherein the gear ring (12) is fixedly connected to the lower surface of the rotating nozzle (41).

4. A chemical gas absorption tower according to claim 1, characterized in that: The mounting structure (6) comprises a fixing plate (61) fixedly connected to the side of the filling frame (5), a pulling plate (62) fixedly connected to the fixing plate (61) and a fastening bolt (63) threadedly penetrating the pulling plate (62); the pulling plate (62) movably penetrates the air intake pipe (2); the fastening bolt (63) arranged on the pulling plate (62) is threadedly connected to the air intake pipe (2); and the outer surface of the air intake pipe (2) is provided with a mounting groove for the filling frame (5) and the pulling plate (62) to be inserted.

5. A chemical gas absorption tower according to claim 1, characterized in that: The multi-position transmission assembly (8) comprises a transmission rod 1 (81) fixedly connected to the lower surface of the fixed tube (43), a gear 1 (82) fixedly connected to one end of the transmission rod 1 (81), a gear 2 (83) meshingly connected to the gear 1 (82), a transmission rod 2 (84) fixedly connected to the gear 2 (83), a gear 3 (85) meshingly connected to the gear 2 (83), and a transmission rod 3 (86) fixedly connected to the gear 3 (85), wherein one end of the transmission rod 2 (84) facing away from the gear 2 (83) is fixedly connected to the center of the flow divider (7), and one end of the transmission rod 3 (86) facing away from the gear 3 (85) is fixedly connected to the centrifugal screen drum (9).

6. A chemical gas absorption tower according to claim 5, characterized in that: A first support rod for rotationally supporting the first transmission rod (81) and the second transmission rod (84) is arranged in the purification tower (1), a second support rod for rotationally supporting the third transmission rod (86) is arranged in the air intake pipe (2), a sealing bearing (14) is arranged on the second transmission rod (84), and a slot for engaging the sealing bearing (14) is arranged at the axis of the packing frame (5).

7. A chemical gas absorption tower according to claim 1, characterized in that: A liquid collecting cylinder (15) is fixedly connected to the interior of the purification tower (1), the centrifugal screen cylinder (9) is rotatably connected to the liquid collecting cylinder (15), a liquid discharge pipe (151) is fixedly passed through the liquid collecting cylinder (15) and the purification tower (1), and a manhole (13) is provided on the purification tower (1).

Images