Chemical packed tower

Abstract

The utility model belongs to the technical field of chemical production equipment, and particularly relates to a chemical packed tower which comprises a tower body and a rotary liquid spraying mechanism, the tower body is provided with a gas outlet, a liquid inlet, a gas inlet and a liquid outlet, a first packing layer and a second packing layer are arranged in the tower body, and a liquid distributor is arranged below a first supporting grid plate; the rotary liquid spraying mechanism comprises a rotary drum, a servo motor, a liquid feeding pipe and a filter, the rotary drum is vertically arranged in the tower body and located above the first packing layer, a spray head is arranged outside the rotary drum, the servo motor is arranged outside the tower body, and an output shaft of the servo motor is in transmission connection with the rotary drum through a transmission device; one end of the liquid feeding pipe penetrates through the liquid inlet of the tower body and downwards extends into the rotary drum, and the filter is arranged on the liquid feeding pipe. According to the device, liquid conveyed by the liquid conveying pipe can be filtered, blockage of impurities to the spray head is reduced, the maintenance frequency is reduced, and the maintenance cost is reduced.

Description

Technical Field

[0001] The utility model belongs to the technical field of chemical production equipment, and specifically relates to a chemical packing tower. Background Art

[0002] The packed tower, also known as the packed tower, is a type of mass transfer equipment commonly used in chemical production. It is mainly composed of a cylindrical tower body, fillers stacked in the tower (solids of various shapes used to increase the area between the two-phase fluid and enhance the mass transfer between the two phases), a defoaming device, a liquid distributor and a support plate. It can be used for absorption, distillation, extraction, etc.

[0003] At present, the spray head at the top of the packed tower that disperses the liquid is often blocked. The main reason is that the liquid material entering the packed tower contains certain impurities. When passing through the water outlet of the spray head, large particles of impurities will cause the water outlet to be blocked. Although small particles of impurities will flow out with the water, they will be absorbed by the packing layer and retained in the packing layer. After that, these impurities will drift to the vicinity of the spray head with the rising air flow. Since the water outlet of the spray head is generally set downward, the water outlet just faces the rising air flow, and the impurities slowly accumulate and cause the water outlet to be blocked.

[0004] Therefore, improvements are urgently needed. Utility Model Content

[0005] In view of the above-mentioned defects in the prior art, the utility model provides a chemical packing tower, including a tower body and a rotating liquid spraying mechanism, the top of the tower body is provided with a gas outlet and a liquid inlet, the bottom of the tower body is provided with a gas inlet and a liquid outlet, the interior of the tower body is provided with a first packing layer and a second packing layer in sequence from top to bottom, a first supporting grid is provided at the bottom of the first packing layer, and a liquid distributor is provided below the first supporting grid, and a second supporting grid is provided at the bottom of the second packing layer.

[0006] The rotary liquid spraying mechanism includes a drum, a servo motor, a liquid delivery pipe and a filter. The drum is vertically arranged inside the tower body and above the first packing layer. The top of the drum is open and the bottom is blind. A plurality of nozzles are horizontally arranged outside the drum, and the nozzles are connected to the inner cavity of the drum. The servo motor is arranged outside the tower body, and the output shaft of the servo motor is connected to the drum through a pulley transmission structure. One end of the liquid delivery pipe passes through the liquid inlet of the tower body and extends downward into the interior of the drum, and the outer wall of the liquid delivery pipe is sealed and rotatably connected to the inner wall of the drum. The filter is arranged on the liquid delivery pipe to filter the liquid in the liquid delivery pipe.

[0007] Optionally, the filter includes a housing, an annular cleaning frame, and two electric push rods. A filter inlet is provided at the upper part of one side of the housing, a bottom cover is provided at the bottom of the housing, and a filter outlet is provided below the bottom cover. A filter cylinder is provided inside the housing, and the bottom of the filter cylinder corresponds to the filter outlet of the bottom cover. The cleaning frame is arranged in the housing and sleeved outside the filter cylinder. A brush is provided on the inner side wall of the cleaning frame and abuts against the outer wall of the filter cylinder. The two electric push rods are both arranged outside the housing and above the housing. The free ends of the two electric push rods both pass through the top wall of the housing and are fixedly connected to the cleaning frame.

[0008] Optionally, the top end of the filter cylinder is threadedly connected to the top of the housing.

[0009] Specifically, it is convenient for disassembling and installing the filter cylinder.

[0010] Optionally, the extension lengths of the nozzles on the rotating cylinder decrease successively from top to bottom.

[0011] Specifically, this not only facilitates the dispersion of the liquid, but also increases the spraying range.

[0012] Optionally, a support frame is provided at the bottom of the servo motor.

[0013] Optionally, a booster pump is also provided on the liquid delivery pipe.

[0014] The present utility model further includes other components that can enable a chemical packing tower to be used normally, all of which are conventional technical means in the art. In addition, the devices or components not defined in the present utility model all adopt conventional technical means in the art, such as servo motors, electric push rods, booster pumps, and liquid distributors.

[0015] The working principle of the present utility model is as follows: When in use, gas enters the tower body from the gas inlet, liquid enters the tower body from the liquid inlet through the liquid delivery pipe and is sprayed out through the nozzles. The filter can filter the liquid and filter out impurities to prevent impurities from entering the nozzles and causing blockage. Even if a small amount of impurities float up with the airflow to the vicinity of the water outlet holes of the nozzles, due to the horizontal arrangement of the nozzles, the probability of nozzle blockage can be reduced to a certain extent. After using for a period of time, there may be more impurities accumulated on the surface of the filter cylinder in the filter, and the filtration efficiency will decrease. At this time, the two electric push rods can be controlled to simultaneously stretch the free ends to lower the cleaning frame, and the brush on the cleaning frame is used to brush the outer wall of the filter cylinder. Then, the electric push rods are controlled to contract the free ends to lift the cleaning frame. By repeating such operations, the impurities blocked in the mesh holes can be swept out to improve the filtration efficiency. If the filter cylinder is damaged, the bottom cover can be removed to take out the filter cylinder, and at the same time, the impurities falling into the bottom cover can be cleaned out.

[0016] The beneficial effects of the present utility model are as follows. Through the filter, the liquid transported by the liquid delivery pipe can be filtered, reducing the blockage of the nozzle by impurities. The electric push rod and the cleaning frame can clean the surface of the filter cylinder, removing the impurities in the mesh holes and improving the filtration efficiency. In addition, the rotating cylinder, the servo motor, and the nozzles horizontally arranged on the rotating cylinder can, to a certain extent, reduce the probability of blockage of the nozzles by impurities, reduce the number of repairs, and lower the maintenance cost. Brief Description of the Drawings

[0017] The present utility model will be further described below in conjunction with the drawings and embodiments.

[0018] Figure 1 It is a schematic diagram of the overall structure of the present utility model.

[0019] Figure 2 is Figure 1 an enlarged schematic diagram of the structure of part A in

[0020] Figure 3 It is a schematic diagram of the internal structure of the filter of the present utility model.

[0021] Figure 4 It is a schematic diagram of the structure of the cleaning frame of the present utility model.

[0022] In the figure: 1. Tower body, 2. Gas outlet, 4. Gas inlet, 5. Liquid outlet, 6. First packing layer, 7. Second packing layer, 8. First support grid plate, 9. Liquid distributor, 10. Second support grid plate, 11. Rotating cylinder, 12. Servo motor, 13. Liquid delivery pipe, 14. Filter, 15. Nozzle, 16. Booster pump, 17. Shell, 18. Filtration inlet, 19. Filtration outlet, 20. Bottom cover, 21. Filter cylinder, 22. Cleaning frame, 23. Electric push rod, 24. Brush. Detailed Embodiments

[0023] The present utility model will be clearly described below in conjunction with the drawings in the embodiments of the present utility model and specific embodiments. The description here is only used to explain the present utility model, but not to limit the present utility model. Based on the embodiments of the present utility model, all other embodiments obtained by those skilled in the art without creative efforts, any modifications, equivalent replacements, improvements, etc., shall be included in the protection scope of the present utility model.

[0024] Embodiment

[0025] Such as Figures 1-4As shown, an embodiment of the utility model provides a chemical packing tower, including a tower body 1 and a rotating liquid spraying mechanism, a gas outlet 2 and a liquid inlet are arranged at the top of the tower body 1, a gas inlet 4 and a liquid outlet 5 are arranged at the bottom of the tower body 1, a first packing layer 6 and a second packing layer 7 are arranged in sequence from top to bottom inside the tower body 1, a first supporting grid 8 is arranged at the bottom of the first packing layer 6, and a liquid distributor 9 is arranged below the first supporting grid 8, and a second supporting grid 10 is arranged at the bottom of the second packing layer 7.

[0026] The rotary liquid spraying mechanism comprises a drum 11, a servo motor 12, a liquid delivery pipe 13 and a filter 14. The drum 11 is vertically arranged inside the tower body 1 and above the first packing layer 6. The top of the drum 11 is open and the bottom is blind. A plurality of nozzles 15 are horizontally arranged outside the drum 11, and the nozzles 15 are connected to the inner cavity of the drum 11. The extended length of the nozzles 15 decreases from top to bottom, which is not only convenient for dispersing the liquid, but also can increase the spraying range. The servo motor 12 is arranged outside the tower body 1, and a support frame is arranged at the bottom of the servo motor 12. The output shaft of the servo motor 12 is connected to the drum 11 through a pulley transmission structure. One end of the liquid delivery pipe 13 passes through the liquid inlet of the tower body 1 and extends downward into the inside of the drum 11. The outer wall of the liquid delivery pipe 13 is sealed and rotatably connected to the inner wall of the drum 11. A booster pump 16 is arranged on the liquid delivery pipe 13.

[0027] The filter 14 is arranged on the liquid delivery pipe 13 and is used to filter the liquid in the liquid delivery pipe 13; the filter 14 includes a shell 17, an annular cleaning frame 22 and two electric push rods 23, a filter inlet 18 is arranged on the upper part of one side of the shell 17, a bottom cover 20 is arranged at the bottom of the shell 17, and a filter outlet 19 is arranged below the bottom cover 20, a filter cartridge 21 is arranged inside the shell 17, and the bottom of the filter cartridge 21 corresponds to the filter outlet 19 of the bottom cover 20, and the top of the filter cartridge 21 is threadedly connected to the top of the shell 17, which is convenient for disassembling and installing the filter cartridge 21; the cleaning frame 22 is arranged in the shell 17 and sleeved on the outside of the filter cartridge 21, a brush 24 is arranged on the inner side wall of the cleaning frame 22, and the brush 24 is against the outer wall of the filter cartridge 21, the two electric push rods 23 are arranged outside the shell 17 and located above the shell 17, and the free ends of the two electric push rods 23 pass through the top wall of the shell 17 and are fixedly connected to the cleaning frame 22.

[0028] The working principle of the present utility model is as follows: during use, gas enters the tower body 1 from the gas inlet 4, and liquid enters the tower body 1 from the liquid inlet through the liquid delivery pipe 13 and is ejected through the nozzle 15. The filter 14 can filter the liquid and filter out impurities to prevent impurities from entering the nozzle 15 and causing blockage. Even if a small amount of impurities rise with the air flow and float to the vicinity of the water outlet holes of the nozzle 15, since the nozzle 15 is horizontally arranged, the probability of blockage of the nozzle 15 can be reduced to a certain extent; after using for a period of time, more impurities may accumulate on the surface of the filter cartridge 21 in the filter 14, and the filtering efficiency will decrease. At this time, the free ends of the two electric push rods 23 can be controlled to stretch simultaneously to lower the cleaning frame 22, and the outer wall of the filter cartridge 21 can be brushed with the brush 24 on the cleaning frame 22. Then, the free ends of the electric push rods 23 can be controlled to contract to lift the cleaning frame 22. By repeating such operations, the impurities blocked in the mesh holes can be swept out to improve the filtering efficiency. If the filter cartridge 21 is damaged, the bottom cover 20 can be removed, the filter cartridge 21 can be taken out, and at the same time, the impurities falling into the bottom cover 20 can be cleaned out together.

[0029] The embodiments of the present utility model have been described above. The above description is exemplary and not exhaustive, and is not limited to the disclosed embodiments. Many modifications and variations are obvious to those of ordinary skill in the art in the technical field without departing from the scope and spirit of the described embodiments.

Claims

1. A chemical packing tower, comprising a tower body and a rotating liquid spraying mechanism, characterized in that: The top of the tower body is provided with a gas outlet and a liquid inlet, the bottom of the tower body is provided with a gas inlet and a liquid outlet, the inside of the tower body is provided with a first packing layer and a second packing layer from top to bottom, the bottom of the first packing layer is provided with a first support grid plate, and a liquid distributor is provided below the first support grid plate, and the bottom of the second packing layer is provided with a second support grid plate; The rotary liquid spraying mechanism includes a drum, a servo motor, a liquid delivery pipe and a filter. The drum is vertically arranged inside the tower body and above the first packing layer. The top of the drum is open and the bottom is blind. A plurality of nozzles are horizontally arranged outside the drum. The servo motor is arranged outside the tower body. The output shaft of the servo motor is connected to the drum through a pulley transmission structure. One end of the liquid delivery pipe passes through the liquid inlet of the tower body and extends downward into the interior of the drum. The outer wall of the liquid delivery pipe is sealed and rotatably connected to the inner wall of the drum. The filter is arranged on the liquid delivery pipe to filter the liquid in the liquid delivery pipe.

2. The chemical packing tower according to claim 1, characterized in that: The filter includes a shell, an annular cleaning frame and two electric push rods. A filter inlet is arranged on the upper part of one side of the shell, a bottom cover is arranged at the bottom of the shell, and a filter outlet is arranged below the bottom cover. A filter cartridge is arranged inside the shell, and the bottom of the filter cartridge corresponds to the filter outlet of the bottom cover. The cleaning frame is arranged in the shell and sleeved on the outside of the filter cartridge. A brush is arranged on the inner wall of the cleaning frame, and the brush is against the outer wall of the filter cartridge. Two electric push rods are arranged on the outside of the shell and located above the shell. The free ends of the two electric push rods pass through the top wall of the shell and are fixedly connected to the cleaning frame.

3. The chemical packing tower according to claim 2, characterized in that: The top of the filter cartridge is threadedly connected to the top of the shell.

4. The chemical packing tower according to claim 3, characterized in that: The extended length of the nozzles on the rotating drum decreases from top to bottom.

5. The chemical packing tower according to claim 4, wherein: A supporting frame is arranged at the bottom of the servo motor.

6. The chemical packing tower according to claim 5, characterized in that: A booster pump is also provided on the liquid delivery pipe.

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