Multi-section circulating spraying purification tower

Abstract

The utility model relates to the field of spray purification towers, and discloses a multi-section type circulating spray purification tower which comprises a spray tower, a demister is fixedly mounted at the top end in the spray tower, cleaning spray pipes are arranged at the top end and the bottom end of the demister, two groups of filler layers are mounted in the spray tower, and the two groups of filler layers are arranged in the spray tower. A flow guide plate is arranged at the top end of the filler layer, a spraying pipe is arranged above the flow guide plate, an air inlet pipe is fixedly connected to the left side of the spraying tower, an exhaust pipe is fixedly connected to the top end of the spraying tower, and a storage tank is arranged at the bottom end in the spraying tower. According to the multi-section type circulating spraying purification tower, waste gas is purified through multiple layers of spraying absorption liquid, the circulating pump can circularly pump the absorption liquid for spraying, in order to prevent the concentration of the absorption liquid from being reduced, an electromagnetic valve on an adding pipe is opened, and after chemicals in a chemical adding tank enter a storage tank, the chemicals are fed into the storage tank; the stirring motor drives the stirring shaft to stir and mix the absorption liquid in the storage tank, so that the problem that the concentration of the absorption liquid is inconvenient to adjust is solved.

Description

Technical Field

[0001] This utility model relates to the field of spray purification tower technology, specifically a multi-stage circulating spray purification tower. Background Technology

[0002] Spray scrubbing towers are the simplest equipment for industrial dust removal or waste gas treatment. They are simple in structure, inexpensive, have low gas pressure drop, and do not clog. The working principle of spray scrubbing towers can be divided into three types: co-current, counter-current, and cross-current.

[0003] Multi-stage circulating spray purification towers are a common type of spray tower. They effectively purify waste gas through a multi-stage spray structure. However, multi-stage circulating spray purification towers require the continuous extraction of absorbent liquid for spraying. The concentration of the absorbent liquid decreases with repeated use, and the inability to promptly increase the concentration of the absorbent liquid will affect the sufficiency and efficiency of waste gas purification.

[0004] There is an urgent need for a multi-stage circulating spray purification tower to address the technical deficiencies mentioned above. Utility Model Content

[0005] The purpose of this invention is to provide a multi-stage circulating spray purification tower to solve the problem of inconvenience in adjusting the concentration of the absorbent liquid mentioned in the background art.

[0006] To achieve the above objectives, this utility model provides the following technical solution: a multi-stage circulating spray purification tower, comprising a spray tower, a demister fixedly installed at the top of the spray tower, cleaning spray pipes provided at the top and bottom of the demister, two sets of packing layers installed inside the spray tower, a guide plate provided at the top of the packing layers, a spray pipe provided above the guide plate, an air inlet pipe fixedly connected to the left side of the spray tower, an exhaust pipe fixedly connected to the top of the spray tower, and a storage tank provided at the bottom of the spray tower. A drain pipe is fixedly connected to the bottom left side of the spray tower. A circulation pump is fixedly installed at the bottom right side of the spray tower. An extraction pipe is fixedly connected to the input end of the circulation pump. A fixing frame is fixedly connected to the right side inside the spray tower. A stirring motor is fixedly installed at the bottom end of the fixing frame. A stirring shaft is fixedly connected to the output end of the stirring motor. A dosing tank is fixedly installed on the right side of the spray tower. An addition pipe is fixedly connected to the bottom left side of the dosing tank. A solenoid valve is fixedly installed on the addition pipe. Mounting seats are fixedly connected to both sides inside the spray tower.

[0007] As a further technical solution of this utility model, the addition pipe is fixedly inserted through the spray tower and embedded inside the spray tower, and a viewing window is fixedly connected to the front end of the dosing tank.

[0008] As a further technical solution of this utility model, a waterproof cover is fixedly connected to the bottom end of the fixing frame, and the waterproof cover covers the outside of the stirring motor.

[0009] As a further technical solution of this utility model, stirring blades are fixedly connected to both sides of the stirring shaft, and the stirring blades are embedded inside the storage tank.

[0010] As a further technical solution of this utility model, the output end of the circulating pump is connected to the spray pipe and the cleaning spray pipe respectively through pipes.

[0011] As a further technical solution of this utility model, the mounting base is provided with mounting holes evenly arranged inside, the front end of the mounting base is provided with mounting bolts, and the guide plate is provided with guide holes evenly arranged inside.

[0012] As a further technical solution of this utility model, the two sides of the guide plate are embedded in the interior of the mounting base and fixed by mounting bolts.

[0013] As a further technical solution of this utility model, the spray pipe is provided in two sets, and the spray pipe is arranged above the filler layer.

[0014] Compared with the prior art, the beneficial effects of this utility model are: the multi-stage circulating spray purification tower not only realizes the function of easy adjustment of the concentration of the absorbent liquid and the function of easy multi-stage spraying, but also realizes the function of easy cleaning;

[0015] (1) By setting up a stirring shaft, stirring motor, dosing tank, adding pipe and stirring blades, the concentration of the absorbent liquid will decrease during recycling. In order to maintain the normal use of the absorbent liquid, the agent that increases the concentration of the absorbent liquid can be placed inside the dosing tank. When adding, open the solenoid valve on the adding pipe. After the agent inside the dosing tank enters the storage tank, the stirring motor drives the stirring shaft to stir and mix the absorbent liquid inside the storage tank. This structure realizes the function of easily adjusting the concentration of the absorbent liquid.

[0016] (2) By setting up spray pipes, packing layer, guide plate, mounting base and mounting bolts, the spray pipes can spray out the absorbent liquid. When sprayed out, the absorbent liquid can fall onto the guide plate for uniform discharge. The uniform drainage holes inside the guide plate can improve the uniformity of the absorbent liquid spray. The two layers of spray pipes inside the spray tower can perform multi-layer spray purification of the exhaust gas. The guide plate can be disassembled and replaced. When disassembling, the guide plate can be removed by unscrewing the mounting bolts from the mounting base. This structure realizes the function of multi-layer spraying.

[0017] (3) By setting up a demister, a cleaning nozzle, a circulating pump and an extraction pipe, the demister can prevent the residual liquid in the gas from being discharged from the exhaust pipe along with the gas. The cleaning nozzles at the top and bottom of the demister can be used to rinse it to avoid excessive surface impurities affecting the demister efficiency. During rinsing, the circulating pump can pump the absorbent liquid into the cleaning nozzle through the extraction pipe to achieve cleaning. This structure realizes the function of easy cleaning. Attached Figure Description

[0018] Figure 1 This is a frontal cross-sectional view of the present invention.

[0019] Figure 2 This is a partial front view of the stirring shaft of this utility model;

[0020] Figure 3 For the present utility model Figure 1 Enlarged structural diagram at point A in the middle;

[0021] Figure 4 This is a front view structural diagram of the dosing tank of this utility model.

[0022] In the diagram: 1. Spray tower; 2. Demister; 3. Cleaning spray pipe; 4. Spray pipe; 5. Packing layer; 6. Guide plate; 7. Mounting base; 8. Air inlet pipe; 9. Storage tank; 10. Sewage pipe; 11. Agitator shaft; 12. Fixing frame; 13. Agitator motor; 14. Dosing tank; 15. Addition pipe; 16. Circulation pump; 17. Extraction pipe; 18. Exhaust pipe; 19. Mounting hole; 20. Mounting bolt; 21. Waterproof cover; 22. Agitator blades; 23. Solenoid valve; 24. Viewing window. Detailed Implementation

[0023] The technical solutions of the present utility model will be clearly and completely described below with reference to the accompanying drawings of the embodiments. Obviously, the described embodiments are only some embodiments of the present utility model, and not all embodiments. Based on the embodiments of the present utility model, all other embodiments obtained by those of ordinary skill in the art without creative effort are within the protection scope of the present utility model.

[0024] Please see Figure 1-4This utility model provides an embodiment of a multi-stage circulating spray purification tower, comprising a spray tower 1, a demister 2 fixedly installed at the top of the spray tower 1, cleaning spray pipes 3 provided at the top and bottom of the demister 2, two sets of packing layers 5 installed inside the spray tower 1, a guide plate 6 provided at the top of the packing layer 5, a spray pipe 4 provided above the guide plate 6, an air inlet pipe 8 fixedly connected to the left side of the spray tower 1, an exhaust pipe 18 fixedly connected to the top of the spray tower 1, a storage tank 9 provided at the bottom of the spray tower 1, and a fixed connection between the bottom of the left side of the spray tower 1 and the air inlet pipe 8. A sewage pipe 10 is connected to the bottom right side of the spray tower 1. A circulation pump 16 is fixedly installed at the bottom right side. An extraction pipe 17 is fixedly connected to the input end of the circulation pump 16. A fixed frame 12 is fixedly connected to the right side inside the spray tower 1. A stirring motor 13 is fixedly installed at the bottom end of the fixed frame 12. A stirring shaft 11 is fixedly connected to the output end of the stirring motor 13. A dosing tank 14 is fixedly installed on the right side of the spray tower 1. An adding pipe 15 is fixedly connected to the bottom left side of the dosing tank 14. A solenoid valve 23 is fixedly installed on the adding pipe 15. Mounting seats 7 are fixedly connected to both sides inside the spray tower 1.

[0025] The addition pipe 15 is fixedly connected through the spray tower 1 and embedded inside the spray tower 1. The front end of the dosing tank 14 is fixedly connected to the viewing window 24. The bottom end of the fixing frame 12 is fixedly connected to the waterproof cover 21, which covers the outside of the stirring motor 13. The stirring blades 22 are fixedly connected to both sides of the stirring shaft 11, and the stirring blades 22 are embedded inside the storage tank 9.

[0026] Specifically, such as Figure 1 and Figure 2 As shown, the concentration of the absorbent will decrease when it is recycled. In order to maintain the normal use of the absorbent, the agent that increases the concentration of the absorbent can be placed inside the dosing tank 14. When adding, the solenoid valve 23 on the dosing pipe 15 is opened. After the agent inside the dosing tank 14 enters the storage tank 9, the stirring motor 13 drives the stirring shaft 11 to stir and mix the absorbent inside the storage tank 9.

[0027] The output end of the circulating pump 16 is connected to the spray pipe 4 and the cleaning spray pipe 3 through pipes respectively. There are two sets of spray pipes 4, which are located above the packing layer 5.

[0028] Specifically, such as Figure 1 and Figure 4 As shown, the demister 2 can prevent residual liquid in the gas from being discharged from the exhaust pipe 18 along with the gas. The cleaning nozzles 3 at the top and bottom of the demister 2 can be used to rinse it to avoid excessive surface impurities affecting the demister efficiency. During rinsing, the circulating pump 16 can pump the absorbent liquid into the cleaning nozzle 3 through the extraction pipe 17 to achieve cleaning.

[0029] The mounting base 7 has mounting holes 19 evenly arranged inside, and mounting bolts 20 are provided at the front end of the mounting base 7. The guide plate 6 has guide holes evenly opened inside, and the two sides of the guide plate 6 are embedded in the interior of the mounting base 7 and fixed by the mounting bolts 20.

[0030] Specifically, such as Figure 1 and Figure 3 As shown, the spray pipe 4 can spray out the absorbent liquid. When sprayed, the absorbent liquid can fall onto the guide plate 6 for uniform discharge. The uniform drainage holes inside the guide plate 6 can improve the uniformity of the absorbent liquid spray. The two layers of spray pipes 4 inside the spray tower 1 can perform multi-layer spray purification of the exhaust gas. The guide plate 6 can be disassembled and replaced. When disassembling, the guide plate 6 can be removed by unscrewing the mounting bolts 20 from the mounting base 7.

[0031] Working principle: Exhaust gas enters the interior of the spray tower 1 through the inlet pipe 8. The circulating pump 16 pumps the absorbent liquid to the spray pipe 4 for spraying to purify the exhaust gas. When sprayed, the absorbent liquid can fall onto the guide plate 6 for uniform discharge. The uniform drainage holes inside the guide plate 6 improve the uniformity of the absorbent liquid spray. The two layers of spray pipes 4 inside the spray tower 1 can perform multi-layer spray purification of the exhaust gas. The demister 2 can prevent residual liquid in the gas from being discharged from the exhaust pipe 18 with the gas. The cleaning spray pipes 3 at the top and bottom of the demister 2 can rinse the gas to prevent surface impurities. Excessive amounts of substances affect the demisting efficiency. During rinsing, the circulating pump 16 can pump the absorbent liquid into the cleaning nozzle 3 through the extraction pipe 17 to achieve cleaning. The concentration of the absorbent liquid will decrease with repeated use. In order to maintain the normal use of the absorbent liquid, the agent that increases the concentration of the absorbent liquid can be placed inside the dosing tank 14. When adding, the solenoid valve 23 on the dosing pipe 15 is opened. After the agent inside the dosing tank 14 enters the storage tank 9, the stirring motor 13 drives the stirring shaft 11 to stir and mix the absorbent liquid inside the storage tank 9. This structure realizes the function of easily adjusting the concentration of the absorbent liquid.

[0032] It will be apparent to those skilled in the art that this invention is not limited to the details of the exemplary embodiments described above, and that it can be implemented in other specific forms without departing from the spirit or essential characteristics of this invention. Therefore, the embodiments should be considered illustrative and non-limiting in all respects, and the scope of this invention is defined by the appended claims rather than the foregoing description. Thus, it is intended that all variations falling within the meaning and scope of equivalents of the claims be included within this invention. No reference numerals in the claims should be construed as limiting the scope of the claims.

Claims

1. A multi-stage, circulating spray scrubber column comprising a spray tower (1), characterized in that: A demister (2) is fixedly installed at the top of the inside of the spray tower (1). A cleaning spray pipe (3) is provided at the top and bottom of the demister (2). Two sets of packing layers (5) are installed inside the spray tower (1). A guide plate (6) is provided at the top of the packing layer (5). A spray pipe (4) is provided above the guide plate (6). An air inlet pipe (8) is fixedly connected to the left side of the spray tower (1). An exhaust pipe (18) is fixedly connected to the top of the spray tower (1). A storage tank (9) is provided at the bottom of the inside of the spray tower (1). A sewage pipe (10) is fixedly connected to the bottom of the left side of the spray tower (1). The right side of the spray tower (1) A circulation pump (16) is fixedly installed at the bottom of the side. An extraction pipe (17) is fixedly connected to the input end of the circulation pump (16). A fixed frame (12) is fixedly connected to the right side inside the spray tower (1). A stirring motor (13) is fixedly installed at the bottom end of the fixed frame (12). A stirring shaft (11) is fixedly connected to the output end of the stirring motor (13). A dosing tank (14) is fixedly installed on the right side of the spray tower (1). An addition pipe (15) is fixedly connected to the bottom end of the left side of the dosing tank (14). A solenoid valve (23) is fixedly installed on the addition pipe (15). Mounting seats (7) are fixedly connected to both sides inside the spray tower (1).

2. A multi-stage, recirculating spray scrubber tower according to claim 1, wherein: The addition pipe (15) is fixedly inserted through the spray tower (1) and embedded inside the spray tower (1), and the front end of the dosing tank (14) is fixedly connected to a viewing window (24).

3. A multi-stage, recirculating spray scrubber tower according to claim 1, wherein: A waterproof cover (21) is fixedly connected to the bottom end of the fixed frame (12), and the waterproof cover (21) covers the outside of the stirring motor (13).

4. The multi-stage circulating spray purification tower according to claim 1, characterized in that: Stirring blades (22) are fixedly connected to both sides of the stirring shaft (11), and the stirring blades (22) are embedded inside the storage tank (9).

5. The multi-stage circulating spray purification tower according to claim 1, characterized in that: The output end of the circulating pump (16) is connected to the spray pipe (4) and the cleaning spray pipe (3) respectively through pipes.

6. The multi-stage circulating spray purification tower according to claim 1, characterized in that: The mounting base (7) has mounting holes (19) evenly arranged inside, and mounting bolts (20) are provided at the front end of the mounting base (7). The guide plate (6) has guide holes evenly arranged inside.

7. A multi-stage circulating spray purification tower according to claim 6, characterized in that: The two sides of the guide plate (6) are embedded inside the mounting base (7) and fixed by mounting bolts (20).

8. A multi-stage circulating spray purification tower according to claim 1, characterized in that: Two sets of spray pipes (4) are provided, and the spray pipes (4) are located above the filler layer (5).

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