CN216987710U

CN216987710U - Synthetic packed tower of solid polyester resin

Info

Publication number: CN216987710U
Application number: CN202123202497.XU
Authority: CN
Inventors: 江建明; 胡泽湘; 江兴科; 吴湧泉
Original assignee: Huangshan Zhengjie New Materials Co ltd
Current assignee: Huangshan Zhengjie New Materials Co ltd
Priority date: 2021-12-20
Filing date: 2021-12-20
Publication date: 2022-07-19
Anticipated expiration: 2031-12-20

Abstract

The utility model discloses a synthetic packed tower of solid polyester resin, which comprises the following components: the inner wall of the packing cylinder is rotationally connected with a gas-liquid mixing component, the outer wall of the left side of the packing cylinder is fixedly provided with a driving component, the inner wall of the top of the packing cylinder is rotationally connected with a liquid feeding and exhausting assembly, the packing cylinder comprises an upper packing cylinder, a lower packing cylinder, an air inlet structure, a top cover and a base, the outer wall of the upper filling cylinder is fixedly connected with a liquid inlet pipe, the air inlet structure is arranged on the inner wall of the base, a liquid discharge pipe is fixedly arranged at the bottom of the base, the gas-liquid mixing component comprises two groups of grid support frames, the grid support frames are arranged in a cylindrical shape, the utility model drives two groups of grid support frames to rotate through the servo motor II, the rotating direction of the grid support frames below the grid support frames is changed through the bevel gear three-meshing bevel gear four, so that the two sets of grid support frames rotate in the opposite direction, and meanwhile, the gas storage bin is driven to rotate through the servo motor two, so that gas and liquid are mixed more uniformly.

Description

Synthetic packed tower of solid polyester resin

Technical Field

The utility model relates to the technical field of polyester resin synthesis, in particular to a synthetic packed tower for solid polyester resin.

Background

The polyester resin is a general name of high molecular compounds formed by condensation polymerization of dihydric alcohol or dibasic acid or polybasic acid and polybasic acid, the polyester resin is divided into saturated polyester resin and unsaturated polyester resin, the unsaturated polyester adhesive mainly comprises unsaturated polyester resin, pigment and filler, an initiator and other auxiliaries, the adhesive has small viscosity, easy wetting, good manufacturability, the cured adhesive layer has large hardness, good transparency, high brightness, can be pressurized and quickly cured at room temperature, has better heat resistance and excellent electrical property, has the defects of large shrinkage, low adhesive toughness, poorer chemical medium resistance and water resistance, is used for non-structural adhesives, is mainly used for adhering glass steel, rigid plastics, concrete, electric tank sealing and the like, a filler tower is required when the polyester resin is synthesized, the filler tower refers to a process with small fluid resistance, large gas treatment amount and small fluid amount, and the liquid flows from top to bottom along the surface of the filler, the gas and the liquid are in countercurrent flow or cocurrent flow, and the liquid content in the packed tower is smaller according to specific reaction.

The packing tower is characterized by that the filling material with various forms, called packing material, is filled in the tower, and the liquid can be flowed along the surface of the packing material to form liquid film, and dispersed in the continuously-flowed gas, and the gas-liquid two-phase contact surface is positioned on the surface of the liquid film of the packing material.

Therefore, based on the above technical problems, it is necessary for those skilled in the art to develop a synthetic packed tower of solid polyester resin.

SUMMERY OF THE UTILITY MODEL

The utility model aims to provide a synthetic packed tower of solid polyester resin.

In order to achieve the above purpose, the utility model provides the following technical scheme: through setting up the gas-liquid mixture subassembly, rotate through two sets of grid support frames of servo motor second drive, change the direction of rotation of grid support frame below through four meshing bevel gears of bevel gear for two sets of grid support frame antiport rotate, rotate through two drive gas storage storehouses of servo motor simultaneously, make gas-liquid mixture more even, increase gas-liquid reaction efficiency, improve gas-liquid mixing efficiency.

The present invention relates to a solid polyester resin synthetic packed tower, comprising: the device comprises a packing cylinder, wherein the inner wall of the packing cylinder is rotatably connected with a gas-liquid mixing assembly, the outer wall of the left side of the packing cylinder is fixedly provided with a driving assembly, the inner wall of the top of the packing cylinder is rotatably connected with a liquid feeding and exhausting assembly, the packing cylinder comprises an upper packing cylinder, a lower packing cylinder, an air inlet structure, a top cover and a base, the outer wall of the upper packing cylinder is fixedly connected with a liquid inlet pipe, the air inlet structure is arranged on the inner wall of the base, the bottom of the base is fixedly provided with a liquid discharging pipe, the gas-liquid mixing assembly comprises two groups of grid supporting frames which are arranged in a cylindrical shape, the central positions of the two groups of grid supporting frames are fixedly connected with a first rotating shaft, the liquid feeding and exhausting assembly comprises a servo motor II, a defoaming steel wire column and a gear III, an output shaft of the servo motor II is fixedly connected with a second rotating shaft, the gear I and the gear II are fixedly arranged on the outer wall of the rotating shaft, the gear I is meshed with the gear III arranged on the outer wall of the defoaming steel wire column, and the end of the liquid inlet pipe is fixedly connected with a joint, the bottom of the adapter is rotatably connected with a first liquid distributor, the first liquid distributor is set to be cylindrical, a liquid spraying pipe is uniformly distributed on the outer wall of the first liquid distributor, a third spray head is uniformly distributed on the outer wall of the first liquid distributor and the bottom of the first liquid distributor, a fourth gear is fixedly installed on the outer wall of the first liquid distributor, and the fourth gear is meshed with the second gear.

Further, the air inlet structure is as follows: the device comprises a first air inlet pipe, a first air storage bin and a first spray nozzle, wherein the first air inlet pipe is fixedly mounted on the inner wall of a lower packing barrel, the top of the first air inlet pipe is fixedly connected with the first air storage bin, the first air storage bin is located below a grid support frame, and the first spray nozzles are uniformly distributed at the top of the first air storage bin.

Furthermore, a top cover is fixedly installed at the top of the upper packing cylinder, six groups of exhaust ports are formed in the top cover, the exhaust ports are installed in a fan shape, an exhaust pipe is fixedly installed on the inner wall of the top cover and located on the outer side of the exhaust ports, the centers of the six groups of exhaust ports are rotatably connected with the defoaming steel wire column through bearings, and the defoaming steel wire column is rotatably connected with the inner wall of the exhaust pipe.

Further, roller carriers are uniformly arranged on the inner walls of the upper filling cylinder and the lower filling cylinder, and the end parts of the roller carriers are rotatably connected with rollers.

Furthermore, support rings are fixedly installed on the outer walls of the two groups of grid support frames, the bottoms of the support rings are rotatably connected with the tops of the rollers, fillers are regularly placed on the inner walls of the grid support frames, and the tops of the fillers are provided with filler pressure gates.

Furthermore, the liquid separator is positioned in the grid support frame above, a third bevel gear is fixedly mounted on the outer wall of the first rotating shaft, a fourth bevel gear is fixedly connected to the bottom of the grid support frame below, and the third bevel gear is meshed with the fourth bevel gear.

Furthermore, a second liquid separator is arranged on the inner wall of the bottom of the upper filling cylinder, the second liquid separator comprises a funnel, the funnel is fixedly arranged on the inner wall of the bottom of the upper filling cylinder, and a liquid containing box is arranged at the bottom of the funnel.

Furthermore, the liquid containing box is fixedly arranged on the outer wall of the rotating shaft, the liquid containing box is positioned below the grid support frame, and the four spray heads are uniformly arranged at the bottom of the liquid containing box.

Furthermore, a servo motor bin is fixedly installed on the outer wall of the lower packing barrel, the driving assembly comprises a first servo motor, the first servo motor is fixedly installed on the inner wall of the servo motor bin, a first bevel gear is fixedly installed on an output shaft of the first servo motor, a second bevel gear is fixedly installed on the outer wall of the bottom end of the first rotating shaft, and the first bevel gear is meshed with the second bevel gear.

In the technical scheme, the synthetic packed tower of the solid polyester resin provided by the utility model has the following beneficial effects:

1. the gas-liquid mixing component is arranged, the two groups of grid support frames are driven to rotate by the servo motor II, the rotating direction of the grid support frame below is changed by the bevel gear III meshed with the bevel gear IV, so that the two groups of grid support frames rotate in the opposite direction, and meanwhile, the gas storage bin I is driven to rotate by the servo motor II, so that gas-liquid mixing is more uniform, the gas-liquid reaction efficiency is increased, and the gas-liquid mixing efficiency is improved;

2. the servo motor II is arranged to simultaneously drive the defoaming steel wire column and the liquid distributor I to rotate, so that power can be simultaneously improved for two groups of structures through one group of power, energy consumption is saved, and the use economy of the packed tower is improved;

3. through making the defoaming steel wire column rotate for during gas outgoing, gaseous inside remaining liquid in time breaks the bubble under pivoted defoaming steel wire column cutting action, thereby avoids liquid to escape from the packed tower, has improved the security that the packed tower used.

Drawings

In order to more clearly illustrate the embodiments of the present application or technical solutions in the prior art, the drawings needed to be used in the embodiments will be briefly described below, and it is obvious that the drawings in the following description are only some embodiments described in the present invention, and other drawings can be obtained by those skilled in the art according to the drawings.

FIG. 1 is a schematic view of the overall structure of a solid polyester resin synthetic packed tower according to an embodiment of the present invention;

FIG. 2 is a schematic view showing the structure of a liquid separator of a packed column for solid polyester resin synthesis according to an embodiment of the present invention.

FIG. 3 is a cross-sectional view of a synthetic packed column of solid polyester resin provided by an embodiment of the present invention;

FIG. 4 is a diagram of the method at A in FIG. 3 of a packed column for the synthesis of solid polyester resin according to an embodiment of the present invention;

description of reference numerals: the device comprises a stuffing cylinder 100, an upper stuffing cylinder 110, a liquid inlet pipe 111, an exhaust port 112, a lower stuffing cylinder 120, a servo motor chamber 121, an air inlet structure 130, a first air inlet pipe 131, a first air storage chamber 132, a first spray head 133, a top cover 140, a base 150, a liquid discharge pipe 160, a roller frame 170, rollers 171, a gas-liquid mixing component 200, a grid support frame 210, a support ring 211, stuffing 212, a stuffing pressing grid 213, a first rotating shaft 220, a fourth bevel gear 230, a driving component 300, a first servo motor 310, a first bevel gear 311, a second rotating shaft 312, a second bevel gear 313, a third bevel gear 314, a liquid feeding and discharging component 400, a second servo motor 410, a third rotating shaft 411, a first gear 412, a second gear 413, an exhaust pipe 420, a defoaming steel wire column 421, a third gear 422, an adapter joint 423, a first liquid distributor 430, a liquid spray pipe 431, a third spray head 432, a fourth gear 433, a second liquid distributor 440, a funnel 441, a liquid containing tank 442 and a fourth spray head 443.

Detailed Description

In order to make those skilled in the art better understand the technical solution of the present invention, the present invention will be further described in detail with reference to the accompanying drawings.

As shown in fig. 1-4;

the present invention provides a synthetic packed tower of solid polyester resin, comprising: the packing cylinder 100, the inner wall of the packing cylinder 100 is rotatably connected with the gas-liquid mixing component 200, the outer wall of the left side of the packing cylinder 100 is fixedly provided with a driving component 300, the inner wall of the top of the packing cylinder 100 is rotatably connected with a liquid feeding and exhausting component 400, the packing cylinder 100 comprises an upper packing cylinder 110, a lower packing cylinder 120, a gas inlet structure 130, a top cover 140 and a base 150, the outer wall of the upper packing cylinder 110 is fixedly connected with a liquid inlet pipe 111, the gas inlet structure 130 is arranged on the inner wall of the base 150, the bottom of the base 150 is fixedly provided with a liquid outlet pipe 160, the gas-liquid mixing component 200 comprises two groups of grid support frames 210, the grid support frames 210 are arranged in a cylinder shape, the central positions of the two groups of grid support frames 210 are fixedly connected with a first rotating shaft 220, the liquid feeding and exhausting component 400 comprises a second servo motor 410, a defoaming steel wire column 421 and a third gear 422, the output shaft of the servo motor 410 is fixedly connected with a third rotating shaft 411, the outer wall of the rotating shaft third 411 is fixedly provided with a first gear 412 and a second gear 413, the three 422 gears of installing in defoaming wire post 421 outer wall are connected in 412 meshing of gear, feed liquor pipe 111 tip fixed connection adapter 423, adapter 423 bottom is rotated and is connected knockout 430, knockout 430 sets up to cylindrically, knockout 430 outer wall evenly distributed spray pipe 431, spray pipe 431 and knockout 430 bottom evenly distributed shower nozzle three 432, four 433 of knockout 430 outer wall fixed mounting gear, four 433 gears and two 413 meshing of gear are connected, air inlet structure 130 is: the gas inlet pipe comprises a first gas inlet pipe 131, a first gas storage bin 132 and a first spray head 133, wherein the first gas inlet pipe 131 is fixedly installed on the inner wall of the lower packing cylinder 120, the first gas storage bin 132 is fixedly connected to the top of the first gas storage bin 131, the first gas storage bin 132 is located below the grid support frame 210, and the first spray head 133 is uniformly distributed on the top of the first gas storage bin 132. specifically, the packing cylinder 100 has the functions of installing a gas-liquid mixing assembly 200, a driving assembly 300 and a liquid feeding and exhausting assembly 400, the gas-liquid mixing assembly 200 has the function of promoting gas phase and liquid phase to be mixed, the driving assembly 300 has the function of conveniently driving the two sets of grid support frames 210 and a second liquid distributor 440 to rotate, the liquid feeding and exhausting assembly 400 has the function of conveniently distributing liquid and defoaming when gas is discharged, the upper packing cylinder 110, the lower packing cylinder 120, the top cover 140 and the base 150 have the function of conveniently forming the packing cylinder 100, and the liquid discharge pipe 160 has the function of conveniently discharging reacted liquid out of equipment, the gas inlet structure 130 has the function of conveniently causing gas to carry out absorption reaction, the liquid inlet pipe 111 has the function of conveniently leading in liquid raw materials to carry out reaction, the grid support frame 210 has the function of conveniently installing the filler 212 to carry out filler reaction, the servo motor II 410 is set to be HF154S, the servo motor II 410 has the function of driving the defoaming steel wire column 421 and the liquid distributor I430 to rotate, therefore, foam in gas is conveniently broken through the defoaming steel wire column 421, liquid in the gas is intercepted, the first liquid distributor 430 is driven to conveniently and uniformly spray the liquid in the first liquid distributor 430 to the inside of the grid support frame 210, the first gear 412 and the third gear 422 have a transmission effect, the fourth gear 433 and the second gear 413 have a transmission effect, the first air inlet pipe 131 has an effect of inputting the gas, the first air storage bin 132 has an effect of distributing the gas, and the first spray head 133 has an effect of uniformly spraying the gas into the filler 212.

Preferably, the top cover 140 is fixedly installed at the top of the upper packing cylinder 110, six groups of exhaust ports 112 are formed at the top of the top cover 140, the exhaust ports 112 are in fan-shaped arrangement, an exhaust pipe 420 is fixedly installed on the inner wall of the top cover 140, the exhaust pipe 420 is positioned at the outer side of the exhaust port 112, the centers of the six groups of exhaust ports 112 are rotatably connected with a defoaming steel wire column 421 through bearings, the defoaming steel wire column 421 is rotatably connected with the inner wall of the exhaust pipe 420, roller frames 170 are uniformly installed on the inner walls of the upper packing cylinder 110 and the lower packing cylinder 120, the end parts of the roller frames 170 are rotatably connected with rollers 171, support rings 211 are fixedly installed on the outer walls of the two groups of grid support frames 210, the bottoms of the support rings 211 are rotatably connected with the tops of the rollers 171, packing 212 is regularly placed on the inner walls of the grid support frames 210, packing pressure grids 213 are arranged on the tops of the packing 212, specifically, the exhaust port 112 has an exhaust function, and the exhaust pipe 420 and the defoaming steel wire column 421 are matched to intercept bubbles, the roller frame 170 has a function of mounting the roller 171, the roller 171 has a function of supporting the grid support frame 210, and at the same time, the grid support frame 210 can conveniently rotate on the top of the roller 171, and the packing grid 213 has a function of preventing the packing 212 from shifting under the action of gas-liquid impact and positioning the packing 212.

Preferably, the first liquid separator 430 is located inside the upper grid support frame 210, the third bevel gear 314 is fixedly mounted on the outer wall of the first rotating shaft 220, the fourth bevel gear 230 is fixedly connected to the bottom of the lower grid support frame 210, the third bevel gear 314 is engaged with the fourth bevel gear 230, the second liquid separator 440 is mounted on the inner wall of the bottom of the upper stuffing cylinder 110, the second liquid separator 440 comprises a funnel 441, the funnel 441 is fixedly mounted on the inner wall of the bottom of the upper stuffing cylinder 110, a liquid containing tank 442 is arranged at the bottom of the funnel 441, the liquid containing tank 442 is fixedly mounted on the outer wall of the first rotating shaft 220, the liquid containing tank 442 is located inside the lower grid support frame 210, and the spray heads 443 are uniformly mounted at the bottom of the liquid containing tank 442, specifically, the first rotating shaft 220 has a transmission function, the two groups of grid support frames 210 and the liquid containing box 442 are rotated through the first rotating shaft 220, the funnel 441 is convenient for containing liquid flowing down from the upper side and redistributing the liquid, and the fourth spray head 443 is convenient for evenly spraying the liquid in the liquid containing box 442 to the grid support frames 210 at the lower side.

Preferably, the servo motor chamber 121 is fixedly installed on the outer wall of the lower stuffing cylinder 120, the driving assembly 300 comprises a first servo motor 310, the first servo motor 310 is fixedly installed on the inner wall of the servo motor chamber 121, a first bevel gear 311 is fixedly installed on an output shaft of the first servo motor 310, a second bevel gear 313 is fixedly installed on the outer wall of the bottom end of the second rotating shaft 312, the first bevel gear 311 is meshed with the second bevel gear 313, specifically, the first servo motor 310 is set to be HF154S, and the first servo motor 310 has a function of driving the second rotating shaft 312 to rotate.

When the utility model is used, a person skilled in the art introduces liquid into the filling cylinder 100 through the liquid inlet pipe 111, drives the second servo motor 410 to rotate, so as to drive the first liquid separator 430 to rotate through the third rotating shaft 411, when the liquid in the liquid inlet pipe 111 falls into the first liquid separator 430, when the first liquid separator 430 rotates, the liquid in the first liquid separator 430 is subjected to centrifugal force, the liquid is uniformly sprayed into the upper grid support frame 210 through the third spray head 432, simultaneously, gas is introduced through the first air inlet pipe 131, the gas enters the lower grid support frame 210 from bottom to top, the second rotating shaft 312 is rotated through the first servo motor 310, so as to drive the two sets of grid support frames 210 and the second liquid separator 440 to rotate, the liquid in the upper grid support frame 210 falls into the funnel 441, so as to enter the second liquid separator 440, is subjected to centrifugal force again, and is uniformly sprayed into the lower grid support frame 210 through the fourth spray head 443, so that the gas phase and the liquid phase are fully mixed, and the working efficiency of the packed tower is improved.

The utility model is characterized in that the liquid is guided into the filling cylinder 100 through the liquid inlet pipe 111, the second servo motor 410 is driven to rotate, so that the first liquid distributor 430 is driven to rotate through the third rotating shaft 411, when the liquid in the liquid inlet pipe 111 falls into the first liquid distributor 430, when the first liquid distributor 430 rotates, the liquid in the first liquid distributor 430 is subjected to centrifugal force, the liquid is uniformly sprayed into the upper grid support frame 210 through the third spray head 432, meanwhile, gas is introduced through the second air pipe 134, the gas is uniformly sprayed into the grid support frame 210 through the second air storage bin 135 and the second spray head 136, the second rotating shaft 312 is driven through the first servo motor 310, so that the two sets of grid support frames 210 and the second liquid distributor 440 are driven to rotate, the liquid in the upper grid support frame 210 falls into the funnel 441, enters the second liquid distributor 440, is subjected to centrifugal force again, and is uniformly sprayed into the lower grid support frame 210 through the fourth spray head 443, so that the gas phase and the liquid phase are fully mixed, and the working efficiency of the packed tower is improved.

While certain exemplary embodiments of the present invention have been described above by way of illustration only, it will be apparent to those of ordinary skill in the art that the described embodiments may be modified in various different ways without departing from the spirit and scope of the utility model. Accordingly, the drawings and description are illustrative in nature and should not be construed as limiting the scope of the utility model.

Claims

1. A solid polyester resin synthetic packed tower comprising: the packing device comprises a packing cylinder (100), wherein the inner wall of the packing cylinder (100) is rotatably connected with a gas-liquid mixing component (200), the outer wall of the left side of the packing cylinder (100) is fixedly provided with a driving component (300), the inner wall of the top of the packing cylinder (100) is rotatably connected with a liquid feeding and exhausting component (400), the packing cylinder (100) comprises an upper packing cylinder (110), a lower packing cylinder (120), a gas inlet structure (130), a top cover (140) and a base (150), and is characterized in that the outer wall of the upper packing cylinder (110) is fixedly connected with a liquid inlet pipe (111), the gas inlet structure (130) is arranged on the inner wall of the base (150), the bottom of the base (150) is fixedly provided with a liquid outlet pipe (160), the gas-liquid mixing component (200) comprises two groups of grid support frames (210), the grid support frames (210) are arranged in a cylindrical shape, and the center positions of the two groups of grid support frames (210) are fixedly connected with a first rotating shaft (220), liquid feeding and exhaust subassembly (400) includes servo motor two (410), defoaming steel wire post (421), gear three (422), servo motor two (410) output shaft fixed connection pivot three (411), pivot three (411) outer wall fixed mounting gear one (412) and gear two (413), gear one (412) meshing connection is installed at gear three (422) of defoaming steel wire post (421) outer wall, feed liquor pipe (111) end fixed connection adapter (423), adapter (423) bottom rotation connection knockout (430), knockout one (430) sets up to be cylindrical, knockout one (430) outer wall evenly distributed spray tube (431), spray tube (431) and knockout one (430) bottom evenly distributed spray head three (432), knockout one (430) outer wall fixed mounting gear four (433), and the gear four (433) is meshed with the gear two (413).

2. The solid polyester resin synthetic packed tower of claim 1, wherein the air inlet structure (130) is: the air inlet pipe I (131), the air storage bin I (132) and the spray head I (133), the air inlet pipe I (131) is fixedly installed on the inner wall of the lower filling cylinder (120), the top of the air inlet pipe I (131) is fixedly connected with the air storage bin I (132), the air storage bin I (132) is located below the grid support frame (210), and the spray head I (133) is uniformly distributed on the top of the air storage bin I (132).

3. The synthetic packed tower of solid polyester resin according to claim 1, wherein a top cover (140) is fixedly installed on the top of the upper packed cylinder (110), six groups of exhaust ports (112) are formed in the top of the top cover (140), the exhaust ports (112) are installed in a fan shape, an exhaust pipe (420) is fixedly installed on the inner wall of the top cover (140), the exhaust pipe (420) is located outside the exhaust ports (112), the center positions of the six groups of exhaust ports (112) are rotatably connected with the defoaming steel wire column (421) through a bearing, and the defoaming steel wire column (421) is rotatably connected with the inner wall of the exhaust pipe (420).

4. The solid polyester resin synthetic packed tower according to claim 3, wherein the inner walls of the upper packed cylinder (110) and the lower packed cylinder (120) are uniformly provided with roller frames (170), and the ends of the roller frames (170) are rotatably connected with rollers (171).

5. The synthetic packed tower of solid polyester resin as claimed in claim 4, wherein the outer walls of two sets of grid support frames (210) are fixedly provided with support rings (211), the bottom of each support ring (211) is rotatably connected with the top of a roller (171), the inner walls of the grid support frames (210) are regularly provided with packing (212), and the top of each packing (212) is provided with a packing grid (213).

6. The solid polyester resin synthetic packed tower according to claim 1, wherein the first liquid separator (430) is located inside the upper grid support frame (210), the outer wall of the first rotating shaft (220) is fixedly provided with a third bevel gear (314), the bottom of the lower grid support frame (210) is fixedly connected with a fourth bevel gear (230), and the third bevel gear (314) is in meshed connection with the fourth bevel gear (230).

7. The synthetic packed tower of solid polyester resin according to claim 1, wherein a second knockout (440) is installed on the inner wall of the bottom of the upper packed column (110), the second knockout (440) comprises a funnel (441), the funnel (441) is fixedly installed on the inner wall of the bottom of the upper packed column (110), and a liquid containing tank (442) is arranged at the bottom of the funnel (441).

8. The synthetic packed tower of solid polyester resin according to claim 7, wherein the liquid tank (442) is fixedly installed on the outer wall of the first rotating shaft (220), the liquid tank (442) is located inside the grid support frame (210) below, and the spray nozzles four (443) are uniformly installed at the bottom of the liquid tank (442).

9. The synthetic packed tower of solid polyester resin according to claim 1, wherein the outer wall of the lower packing cylinder (120) is fixedly provided with a servo motor chamber (121), the driving assembly (300) comprises a first servo motor (310), the first servo motor (310) is fixedly arranged on the inner wall of the servo motor chamber (121), the output shaft of the first servo motor (310) is fixedly provided with a first bevel gear (311), the outer wall of the bottom end of the second rotating shaft (312) is fixedly provided with a second bevel gear (313), and the first bevel gear (311) is in meshed connection with the second bevel gear (313).