Acid gas absorption tower for the preparation process of methylcyclopentadienyl manganese tricarbonyl

Abstract

The invention discloses an acid gas absorption tower for a methylcyclopentadiene manganese tricarbonyl preparation process in the technical field of waste gas treatment. The tower comprises a tower body, wherein a first fixing frame is arranged in the tower body, the first fixing frame is fixedly connected to the tower body, and absorption cylinders are symmetrically fixedly connected to the left and right sides of the first fixing frame, wherein an alkaline solution is arranged in the absorption cylinder for absorbing the acid gas; an air inlet pipe is fixedly connected to the bottom of the tower body, and an exhaust port is arranged at the upper part of the tower body, the air inlet pipe is a three-way pipe, and the two ends of the inner part of the tower body are respectively fixedly connected to two absorption cylinders; a driving mechanism is arranged in the tower body, and the driving mechanism is used to drive a diversion mechanism and a feeding mechanism to operate; the invention alternately neutralizes the acid gas through two absorption cylinders, and can well treat the acid gas while ensuring that the alkaline solvent is not wasted, and the alkaline solvent does not need to be replaced manually, which can effectively save manpower.

Description

Technical Field

[0001] The invention relates to the technical field of waste gas treatment, in particular to an acidic gas absorption tower used in a process for preparing methylcyclopentadiene manganese tricarbonyl. Background Art

[0002] A large amount of acidic gas will appear in the preparation process of methylcyclopentadienyl manganese tricarbonyl, which will cause great pollution to the environment. The existing treatment method is to absorb it into the absorption tower and then neutralize it with the alkaline solution in the tower to achieve the effect of controlling the acidic gas.

[0003] However, when the alkaline solution is neutralizing the acidic gas, the alkalinity of the alkaline solution will gradually weaken. When the alkalinity of the alkaline solution is weakened to a certain extent, it can no longer neutralize the acidic gas. The existing absorption tower can only ensure the treatment effect of the acidic gas by regularly replacing the alkaline solution, which is laborious and complicated to operate. In addition, the replaced alkaline solution still has alkalinity, but the effect of treating the acidic gas becomes worse. Direct replacement will lead to a waste of alkaline solution. Summary of the invention

[0004] The object of the present invention is to provide an acid gas absorption tower for use in the preparation process of methylcyclopentadienyl manganese tricarbonyl to solve the problems raised in the above background technology.

[0005] To achieve the above object, the present invention provides the following technical solution: an acid gas absorption tower for the preparation process of methylcyclopentadienyl manganese tricarbonyl, comprising a tower body, wherein a first fixing frame is provided in the tower body, the first fixing frame is fixedly connected to the tower body, and absorption cylinders are symmetrically fixedly connected to the left and right sides of the first fixing frame, and an alkaline solution is provided in the absorption cylinder for absorbing acid gas; an air inlet pipe is fixedly connected at the bottom of the tower body, and an exhaust port is provided at the top of the tower body, the air inlet pipe is a three-way pipe, and the two ends of the air inlet pipe located at the inner part of the tower body are respectively fixedly connected to two absorption cylinders;

[0006] The air inlet pipe is provided with a diverting mechanism, which is used to divert the acid gas so that the acid gas can only flow to one absorption cylinder;

[0007] A feeding mechanism is provided above the tower body, and the feeding mechanism is used to feed alkaline substances into the absorption cylinder after the alkaline solution in the absorption cylinder is neutralized by the acidic gas;

[0008] A driving mechanism is arranged in the tower body, and the driving mechanism is used to drive the diversion mechanism and the feeding mechanism to operate.

[0009] Preferably, the diversion mechanism includes two valves, and the two valves are respectively located on the two parts where the air inlet pipe is connected to the two absorption cylinders; the valve is fixedly connected to the air inlet pipe, the valve is a ball valve, and rotating rods are symmetrically fixedly connected to the rotating shafts on the front and rear sides of the valve core in the valve, and the rotating rods on the left and right sides are both inclined at forty-five degrees.

[0010] Preferably, a plurality of air outlet pipes are fixedly connected to the bottom of the absorption cylinder, and the plurality of air outlet pipes are all connected to the air inlet pipe; a one-way valve is provided in the air inlet pipe at the bottom of the absorption cylinder.

[0011] Preferably, the feeding mechanism includes a material box, which is fixedly connected to the tower body and contains alkaline solid particles; feeding pipes are slidably connected to the left and right sides of the material box, and the feeding pipes on the left and right sides are respectively located above the absorption cylinders on the left and right sides; a recess is provided at the upper end of the feeding pipe near the material box.

[0012] Preferably, the driving mechanism comprises two groups of first threaded rods, which are symmetrically distributed on the left and right sides of the tower body and are rotatably connected to the tower body; one group of first threaded rods consists of two, and the upper parts of four first threaded rods are fixedly connected to first pulleys; a first motor is fixedly connected to the inside of the tower body, a second pulley is fixedly connected to the upper end of the output shaft of the first motor, a belt is provided on the second pulley, and the belt is meshed with the second pulley and the four first pulleys at the same time; a lifting mechanism is provided on one group of the first threaded rods, and the lifting mechanism is used to open and close the valve and drive the feeding pipe to rise and fall.

[0013] Preferably, the lifting mechanism includes a lifting plate, which is threadedly connected to the two first threaded rods and has pull ropes symmetrically fixedly connected to the front and rear sides of the lifting plate, and the bottom ends of the pull ropes on the front and rear sides are respectively fixedly connected to the front and rear rotating rods; the position where the pull rope is connected to the rotating rod is located at the end of the rotating rod away from the connection with the valve core shaft; the lifting plate is rotatably connected to the bottom end part of the feeding pipe and the feeding pipe passes through the lifting plate.

[0014] Preferably, the upper end of the feeding tube is rotatably connected to a second threaded rod, and the second threaded rod is not self-locking; a first threaded barrel and a second threaded barrel are provided directly above the second threaded rod, and the second threaded rod is threadedly matched with the first threaded barrel and the second threaded barrel; the first threaded barrel is rotatably connected to the tower body and the second threaded barrel is rotatably connected to the material box; the first threaded barrel and the tower body, the second threaded barrel and the material box, and the feeding tube and the lifting plate are all connected by one-way bearings, and the first threaded barrel and the second threaded barrel can rotate in the same direction and opposite to the second threaded rod.

[0015] Preferably, a second motor is fixedly connected to the middle position of the lifting plate, a stirring rod is fixedly connected to the bottom end of the output shaft of the second motor, a filter plate is fixedly connected to the bottom end of the stirring rod, and the filter plate is gap-matched with the inner wall of the absorption cylinder.

[0016] Preferably, cylinders are symmetrically fixedly connected at the oblique rear positions on the left and right sides of the tower body, and the telescopic ends of the cylinders are fixedly connected to the material receiving frame. An oblique scraper is provided above the material receiving frame, and the oblique scraper is fixedly connected to the material receiving frame; the distance between the oblique scraper and the material receiving frame is greater than the thickness of the filter plate.

[0017] Compared with the prior art, the present invention has the following beneficial effects:

[0018] The present invention divides the acidic gas into an absorption cylinder with a relatively strong alkaline solution through a shunt mechanism. After the acidic gas enters the absorption cylinder, it will become a normal gas under the neutralization of the alkaline solution in the absorption cylinder, and will eventually be discharged through the exhaust port above the tower body; after the acidic gas is introduced for a period of time, the alkaline solution in the absorption cylinder will gradually become neutral, and at this time, the shunt mechanism and the feeding mechanism can be driven by the driving mechanism to operate, and the shunt mechanism shunts the acidic gas into another absorption cylinder for further treatment, and at this time, the absorption cylinder with a relatively weak alkalinity stops working; the feeding mechanism feeds an appropriate amount of alkaline material into the absorption cylinder with a relatively weak alkalinity, and the solvent in the absorption cylinder will restore alkalinity after dissolving the alkaline material; by alternately neutralizing the acidic gas by two absorption cylinders, the acidic gas can be well treated while ensuring that the alkaline solvent is not wasted, and at the same time, the alkaline solvent does not need to be replaced manually, which can effectively save manpower;

[0019] The present invention starts the cylinder, which drives the inclined scraper plate and the material receiving frame to move to the upper and lower positions of the filter plate respectively. The inclined scraper plate will be attached to the surface of the filter plate. As the second motor drives the filter plate to rotate, the filtered alkaline material will be scraped into the material receiving frame under the action of the inclined scraper plate. BRIEF DESCRIPTION OF THE DRAWINGS

[0020] Figure 1 It is a schematic diagram of the overall structure of the present invention;

[0021] Figure 2 It is a rear view structural schematic diagram of the present invention;

[0022] Figure 3 It is a cross-sectional structural schematic diagram of the present invention;

[0023] Figure 4 for Figure 3 Schematic diagram of the split structure;

[0024] Figure 5 It is a schematic cross-sectional structural diagram of the material box in the present invention;

[0025] Figure 6 It is a structural schematic diagram of the driving mechanism in the present invention;

[0026] Figure 7 It is a structural schematic diagram of the diversion mechanism in the present invention;

[0027] Figure 8 It is a structural schematic diagram of the absorption tube in the present invention;

[0028] Fig. 9 It is a structural schematic diagram of the inclined scraper in the present invention.

[0029] In the accompanying drawings, the components represented by the reference numerals are listed as follows:

[0030] 1. Tower body; 2. First fixed frame; 3. Absorption cylinder; 4. Air inlet pipe; 5. Valve; 6. Rotating rod; 7. Air outlet pipe; 8. Material box; 9. Feeding pipe; 10. First threaded rod; 11. First pulley; 12. First motor; 13. Second pulley; 14. Belt; 15. Lifting plate; 16. Pull rope; 17. Second threaded rod; 18. First threaded cylinder; 19. Second motor; 20. Stirring rod; 21. Filter plate; 22. Cylinder; 23. Material receiving frame; 24. Oblique scraper; 25. Second threaded cylinder. DETAILED DESCRIPTION

[0031] See also Figure 1-Figure 9 The present invention provides a technical solution: an acid gas absorption tower for the preparation process of methylcyclopentadienyl manganese tricarbonyl, comprising a tower body 1, a first fixing frame 2 is arranged inside the tower body 1, the first fixing frame 2 is fixedly connected to the tower body 1, and absorption cylinders 3 are symmetrically fixedly connected to the left and right sides of the first fixing frame 2, and an alkaline solution is arranged in the absorption cylinder 3 for absorbing acid gas; an air inlet pipe 4 is fixedly connected to the bottom of the tower body 1, and an exhaust port is provided at the top of the tower body 1, the air inlet pipe 4 is a three-way pipe, and the two ends of the air inlet pipe 4 located at the inner part of the tower body 1 are respectively fixedly connected to the two absorption cylinders 3;

[0032] The air inlet pipe 4 is provided with a diverting mechanism, which is used to divert the acid gas so that the acid gas can only flow to one absorption cylinder 3;

[0033] A feeding mechanism is provided above the tower body 1, and the feeding mechanism is used to feed alkaline substances into the absorption tube 3 after the alkaline solution in the absorption tube 3 is neutralized by the acidic gas;

[0034] A driving mechanism is provided in the tower body 1, and the driving mechanism is used to drive the diversion mechanism and the feeding mechanism to operate;

[0035] During operation, the acidic gas enters the tower body 1 through the air inlet pipe 4. Under the action of the diversion mechanism, the acidic gas will enter the absorption tube 3 of the relatively strong alkaline solution through the air inlet pipe 4. After the acidic gas enters the absorption tube 3, it will become normal gas under the neutralization of the alkaline solution in the absorption tube 3, and will eventually be discharged through the exhaust port above the tower body 1; after the acidic gas is introduced for a period of time, the alkaline solution in the absorption tube 3 will gradually become neutral. At this time, the diversion mechanism and the feeding mechanism can be driven by the driving mechanism to operate, and the diversion mechanism will divert the acidic gas to another absorption tube 3 for further treatment. At this time, the absorption tube 3 with weaker alkalinity stops working; the feeding mechanism will feed an appropriate amount of alkaline material into the absorption tube 3 with weaker alkalinity, and the solvent in the absorption tube 3 will restore alkalinity after dissolving the alkaline material; by alternately neutralizing the acidic gas by the two absorption tubes 3, the acidic gas can be well treated without wasting the alkaline solvent, and the alkaline solvent does not need to be replaced manually, which can effectively save manpower.

[0036] like Figure 7 As shown, as a further solution of the present invention, the diversion mechanism includes two valves 5, and the two valves 5 are respectively located at two parts where the air inlet pipe 4 is connected to the two absorption cylinders 3; the valve 5 is fixedly connected to the air inlet pipe 4, the valve 5 is a ball valve, and the rotating shafts on the front and rear sides of the valve core in the valve 5 are symmetrically fixedly connected with rotating rods 6, and the rotating rods 6 on the left and right sides are both in a 45-degree inclined state;

[0037] A plurality of air outlet pipes 7 are fixedly connected to the bottom of the absorption cylinder 3, and the plurality of air outlet pipes 7 are connected to the air inlet pipe 4; a one-way valve is provided in the air inlet pipe 4 at the bottom of the absorption cylinder 3;

[0038] During operation, the valve core in the valve 5 can be driven to rotate by pulling the rotating rod 6, and the valve 5 can be opened or closed when the valve core rotates; the acid gas will be discharged from the multiple exhaust pipes 7 after passing through the valve 5 and the one-way valve, and the multiple exhaust pipes will divide the acid gas into multiple small portions of gas. The multiple small portions of acid gas flow upward from the bottom of the absorption tube 3, which can maximize the treatment effect of the acid gas.

[0039] like Figure 5 As shown, as a further solution of the present invention, the feeding mechanism includes a material box 8, which is fixedly connected to the tower body 1 and contains alkaline solid particles; the left and right sides of the material box 8 are slidably connected with feeding pipes 9, and the left and right feeding pipes 9 are respectively located above the left and right absorption cylinders 3; the upper end of the feeding pipe 9 is provided with a notch near the material box 8;

[0040] During operation, when the feeding tube 9 moves downward, the notch above the feeding tube 9 will gradually move toward the inner position of the material box 8; when the notch on the feeding tube 9 enters the interior of the material box 8, the alkaline material inside the material box 8 will directly enter the feeding tube 9 through the notch, and then fall into the absorption cylinder 3 along the feeding tube 9.

[0041] like Figure 4-Figure 7 , Fig. 9 As shown, as a further solution of the present invention, the driving mechanism includes two groups of first threaded rods 10, the two groups of first threaded rods 10 are symmetrically distributed at the left and right sides of the tower body 1 and the two groups of first threaded rods 10 are rotatably connected to the tower body 1; one group of first threaded rods 10 is two, and the upper positions of the four first threaded rods 10 are fixedly connected to the first pulleys 11; the tower body 1 is fixedly connected with a first motor 12, the upper end of the output shaft of the first motor 12 is fixedly connected to the second pulley 13, and the second pulley 13 is provided with a belt 14, and the belt 14 is meshed with the second pulley 13 and the four first pulleys 11 at the same time; a group of first threaded rods 10 is provided with a lifting mechanism, and the lifting mechanism is used to open and close the valve 5 and drive the feeding pipe 9 to rise and fall;

[0042] The lifting mechanism includes a lifting plate 15, which is threadedly connected to the two first threaded rods 10, and the lifting plate 15 is symmetrically fixedly connected with pull ropes 16 at the front and rear sides, and the bottom ends of the pull ropes 16 at the front and rear sides are respectively fixedly connected to the front and rear side rotating rods 6; the position where the pull rope 16 is connected to the rotating rod 6 is located at the end of the rotating rod 6 away from the connection with the valve core shaft; the lifting plate 15 is rotatably connected to the bottom end of the feeding tube 9, and the feeding tube 9 passes through the lifting plate 15;

[0043] The upper end of the feeding tube 9 is rotatably connected with a second threaded rod 17, and the second threaded rod 17 is not self-locking; a first threaded barrel 18 and a second threaded barrel 25 are arranged directly above the second threaded rod 17, and the second threaded barrel 17, the first threaded barrel 18 and the second threaded barrel 25 are threadedly matched; the first threaded barrel 18 is rotatably connected to the tower body 1, and the second threaded barrel 25 is rotatably connected to the material box 8; the first threaded barrel 18 and the tower body 1, the second threaded barrel 25 and the material box 8, and the feeding tube 9 and the lifting plate 15 are all connected by a one-way bearing, and the first threaded barrel 18 and the second threaded barrel 25 can rotate in the same direction and opposite to the second threaded rod 17;

[0044] A second motor 19 is fixedly connected to the middle of the lifting plate 15, a stirring rod 20 is fixedly connected to the bottom end of the output shaft of the second motor 19, a filter plate 21 is fixedly connected to the bottom end of the stirring rod 20, and the filter plate 21 is gap-matched with the inner wall of the absorption cylinder 3;

[0045] The cylinders 22 are symmetrically fixedly connected at the oblique rear positions on the left and right sides of the tower body 1, and the retractable ends of the cylinders 22 are fixedly connected to the material receiving frame 23. An oblique scraper 24 is provided above the material receiving frame 23, and the oblique scraper 24 is fixedly connected to the material receiving frame 23; the distance between the oblique scraper 24 and the material receiving frame 23 is greater than the thickness of the filter plate 21;

[0046] During operation, when the second pulley 13 is driven to rotate by starting the first motor 12, the second pulley 13 drives the four first pulleys 11 to rotate through the belt 14, and the four first pulleys 11 respectively drive the four first threaded rods 10 to rotate, and when the two first threaded rods 10 on the left side rotate, the lifting plate 15 on the left side is driven to descend, and when the two first threaded rods 10 on the right side rotate, the lifting plate 15 on the right side is driven to rise (here, the initial states of the lifting plates 15 on the left and right sides are respectively at the top and the bottom positions); when the right lifting plate 15 rises, the two rotating rods 6 on the right side are pulled upward by the pull rope 16 to rotate, and when the two rotating rods 6 on the right side rotate upward, the valve 5 on the right side will gradually open; the acid gas begins to enter the absorption cylinder 3 on the right; the lifting plate 15 on the left side moves upward; the two rotating rods 6 on the right side rotate upward; the valve 5 on the right side gradually opens ... lifting plate 15 on the left side moves upward; the lifting plate 15 on the left side moves upward; the lifting plate 15 on the left side moves upward; the lifting plate 15 on the left side moves upward; the lifting plate 15 on the left side moves upward; the lifting plate 15 on the left side moves upward; the lifting plate 15 on the left side moves upward; the lifting plate 15 on the right side moves upward; the lifting plate 15 on the left side moves upward; the lifting plate 15 on the left side moves upward; the lifting plate 15 on the left side moves upward; the When moving downward, the pull rope 16 gradually reduces the force acting on the left rotating rod 6, and the left rotating rod 6 will automatically rotate downward; when the left pull rope 16 is completely relaxed, the left rotating rod 6 rotates to the lowest position, the left valve 5 is closed, and the acid gas cannot enter the absorption cylinder 3 on the left; as the left lifting plate 15 moves downward, the left feeding pipe 9 starts to move downward, and when the notched part on the left feeding pipe 9 enters the material box 8, the alkaline material in the material box 8 will enter the feeding pipe 9 through the notch. As the left lifting plate 15 drives the left feeding pipe 9 to continue to descend, the left second threaded rod 17 drives the left feeding pipe 9 to rotate 180 degrees under the action of the second threaded cylinder 25, and the alkaline material will stop entering the feeding pipe 9 at this time;

[0047] After the alkaline material entering the feeding tube 9 falls into the absorption tube 3, the second motor 19 on the left is started, and the second motor 19 drives the stirring rod 20 to rotate. Under the action of the stirring rod 20, the alkaline material will quickly merge with the solvent in the absorption tube 3;

[0048] When the left lifting plate 15 moves upward, it will drive the left feeding tube 9 to move upward, and the feeding tube 9 will drive the second threaded rod 17 connected thereto to move upward. Under the action of the one-way bearing, the feeding tube 9 cannot rotate and will drive the second threaded cylinder 25 to rotate; when the left lifting plate 15 moves to the uppermost position, the left second threaded rod 17 will be inserted into the first threaded cylinder 18, and when the left feeding tube 9 moves downward again, under the action of the one-way bearing, the second threaded rod 17 will drive the feeding tube 9 to rotate 180 degrees, and the notch on the feeding tube 9 will face the material box 8 again;

[0049] When the alkalinity of the alkaline solvent in the absorption cylinder 3 is not weakened too much, the alkaline material put in at this time cannot be completely melted, and the excess alkaline material will be filtered out when the filter plate 21 moves upward; when the filter plate 21 moves to the uppermost position, the cylinder 22 corresponding to the filter plate 21 is started at this time, and the cylinder 22 drives the inclined scraper 24 and the material receiving frame 23 to move to the upper and lower positions of the filter plate 21 respectively, and the inclined scraper 24 will be attached to the surface of the filter plate 21. As the second motor 19 drives the filter plate 21 to rotate, the filtered alkaline material will be scraped into the material receiving frame 23 under the action of the inclined scraper 24.

Claims

1. An acid gas absorption tower for use in the preparation process of methylcyclopentadienyl manganese tricarbonyl, comprising a tower body (1), characterized in that: The tower body (1) is provided with a first fixing frame (2), the first fixing frame (2) is fixedly connected to the tower body (1), and absorption cylinders (3) are symmetrically fixedly connected to the left and right sides of the first fixing frame (2), and the absorption cylinders (3) are provided with alkaline solution for absorbing acidic gas; an air intake pipe (4) is fixedly connected to the bottom of the tower body (1), and an exhaust port is provided at the top of the tower body (1); the air intake pipe (4) is a three-way pipe and is located at the inner side of the tower body (1), and the two ends thereof are fixedly connected to the two absorption cylinders (3) respectively; The air inlet pipe (4) is provided with a diverting mechanism, and the diverting mechanism is used to divert the acid gas so that the acid gas can only flow to one absorption cylinder (3); A feeding mechanism is provided above the tower body (1), and the feeding mechanism is used to feed alkaline substances into the absorption cylinder (3) after the alkaline solution in the absorption cylinder (3) is neutralized by the acidic gas; A driving mechanism is provided in the tower body (1), and the driving mechanism is used to drive the flow diversion mechanism and the feeding mechanism to operate; The diversion mechanism comprises two valves (5), the two valves (5) being respectively located on two parts where the air intake pipe (4) and the two absorption cylinders (3) are connected; the valve (5) is fixedly connected to the air intake pipe (4), the valve (5) is a ball valve, and rotating rods (6) are symmetrically fixedly connected to the rotating shafts on the front and rear sides of the valve core in the valve (5), and the rotating rods (6) on the left and right sides are both in a 45-degree inclined state; The feeding mechanism comprises a material box (8), the material box (8) is fixedly connected to the tower body (1) and contains alkaline solid particles; the left and right sides of the material box (8) are slidably connected with feeding pipes (9), the left and right feeding pipes (9) are respectively located above the left and right absorption cylinders (3); the upper end of the feeding pipe (9) is provided with a notch near the material box (8); The driving mechanism comprises two groups of first threaded rods (10), the two groups of first threaded rods (10) are symmetrically distributed at left and right sides of the tower body (1) and the two groups of first threaded rods (10) are rotatably connected to the tower body (1); one group of the first threaded rods (10) comprises two, and the upper parts of the four first threaded rods (10) are all fixedly connected to first pulleys (11); a first motor (12) is fixedly connected inside the tower body (1), a second pulley (13) is fixedly connected to the upper end of the output shaft of the first motor (12), a belt (14) is provided on the second pulley (13), and the belt (14) is meshed with the second pulley (13) and the four first pulleys (11) at the same time; a lifting mechanism is provided on one group of the first threaded rods (10), and the lifting mechanism is used to open and close the valve (5) and drive the feeding pipe (9) to rise and fall.

2. The acid gas absorption tower for the preparation process of methylcyclopentadienyl manganese tricarbonyl according to claim 1, characterized in that: A plurality of air outlet pipes (7) are fixedly connected to the bottom of the absorption cylinder (3), and the plurality of air outlet pipes (7) are all connected to the air inlet pipe (4); a one-way valve is provided in the air inlet pipe (4) at the bottom of the absorption cylinder (3).

3. The acid gas absorption tower for the preparation process of methylcyclopentadienyl manganese tricarbonyl according to claim 1, characterized in that: The lifting mechanism comprises a lifting plate (15), the lifting plate (15) being threadedly connected to the two first threaded rods (10), and pull ropes (16) being symmetrically fixedly connected to the front and rear sides of the lifting plate (15), and the bottom ends of the pull ropes (16) on the front and rear sides are respectively fixedly connected to the front and rear rotating rods (6); the position where the pull rope (16) is connected to the rotating rod (6) is located at the end of the rotating rod (6) away from the connection with the valve core shaft; the lifting plate (15) is rotatably connected to the bottom end of the feeding tube (9), and the feeding tube (9) passes through the lifting plate (15).

4. The acid gas absorption tower for the preparation process of methylcyclopentadienyl manganese tricarbonyl according to claim 1, characterized in that: The upper end of the feeding tube (9) is rotatably connected to a second threaded rod (17), and the second threaded rod (17) is not self-locking; a first threaded barrel (18) and a second threaded barrel (25) are provided directly above the second threaded rod (17), and the second threaded rod (17) is threadedly matched with the first threaded barrel (18) and the second threaded barrel (25); the first threaded barrel (18) is rotatably connected to the tower body (1) and the second threaded barrel (25) is rotatably connected to the material box (8); the first threaded barrel (18) and the tower body (1), the second threaded barrel (25) and the material box (8), and the feeding tube (9) and the lifting plate (15) are all connected by a one-way bearing, and the first threaded barrel (18) and the second threaded barrel (25) can rotate in the same direction and in the opposite direction to the second threaded rod (17).

5. The acid gas absorption tower for the preparation process of methylcyclopentadienyl manganese tricarbonyl according to claim 3, characterized in that: A second motor (19) is fixedly connected to the upper middle portion of the lifting plate (15); a stirring rod (20) is fixedly connected to the bottom end of the output shaft of the second motor (19); a filter plate (21) is fixedly connected to the bottom end of the stirring rod (20); and the filter plate (21) is gap-matched with the inner wall of the absorption cylinder (3).

6. The acid gas absorption tower for the preparation process of methylcyclopentadienyl manganese tricarbonyl according to claim 5, characterized in that: Cylinders (22) are symmetrically fixedly connected at oblique rear positions on the left and right sides of the tower body (1); a material receiving frame (23) is fixedly connected to the telescopic end of the cylinder (22); an oblique scraper (24) is provided above the material receiving frame (23); the oblique scraper (24) is fixedly connected to the material receiving frame (23); and the distance between the oblique scraper (24) and the material receiving frame (23) is greater than the thickness of the filter plate (21).

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