Exhaust water drifting prevention device of spray tower

Abstract

A spraying tower exhaust water drifting prevention device comprises a spraying tower provided with a controller, a circulating pump is installed on the side face of the spraying tower, the top of the spraying tower is connected with a bent pipe, the bent pipe extends downwards and is connected with a wind tower, a centrifugal fan is arranged at the joint of the bent pipe and the wind tower, the circulating pump is connected with a first frequency converter, and the centrifugal fan is connected with a second frequency converter. A demister, a first frequency converter, a second frequency converter and an air humidity sensor are arranged at the upper part of the spray tower, the humidity of treated flue gas is sensed through the sensor, and when the humidity is higher than a threshold value, an electric signal is sent to change the power of a circulating pump and a centrifugal fan through the first frequency converter and the second frequency converter; the air speed of the flue gas and the water spraying speed in the spray tower are changed, so that the air flow speed and the spraying amount of the spraying liquid are adjusted to a proper degree, and the water drifting phenomenon of the spray tower is eliminated.

Description

Technical Field

[0001] The utility model relates to the technical field of waste gas treatment, and more specifically to a spray tower exhaust water drift prevention device. Background Art

[0002] In the field of industrial waste gas treatment, spray towers are widely used as a common purification equipment. They are widely used in chemical, pharmaceutical, printing, coating and other industries to treat waste gases containing organic waste gas (VOCs), particulate matter, etc. After the waste gas containing harmful components enters the spray tower, it is fully in contact with the sprayed liquid. The harmful components are absorbed by the liquid or chemically react, thereby achieving the purpose of purification. However, in actual operation, it is sometimes found that the waste gas still contains moisture after being treated by the spray tower, which not only affects the subsequent process, but may also cause problems such as equipment corrosion.

[0003] The factors that may cause water to float in the spray tower are mainly the following:

[0004] 1. If the spray volume of the spray liquid is too large, it may cause the moisture content in the exhaust gas to increase;

[0005] 2. Too fast air flow speed will result in insufficient contact time between the exhaust gas and the spray liquid, and the moisture will not be completely removed in time.

[0006] 3. There may be defects in the design of the spray tower, such as inappropriate tower size and uneven airflow distribution, which may cause the exhaust gas to carry water. Summary of the Invention

[0007] One advantage of the present invention is that it provides a spray tower exhaust anti-water drifting device, which is equipped with a first frequency converter, a second frequency converter and an air humidity sensor. The humidity of the treated flue gas is sensed by the sensor. When the humidity is higher than a threshold value, an electrical signal is sent through the first frequency converter and the second frequency converter to change the power of the circulation pump and the centrifugal fan to change the wind speed of the flue gas and the speed of the water spraying in the spray tower, so that the air flow speed and the spraying amount of the spray liquid are adjusted to an appropriate level to eliminate the water drifting phenomenon in the spray tower.

[0008] One advantage of the present invention is that it provides a spray tower exhaust anti-drifting device, improves the structure of the demister, and through the staggered first corrugated plate and the second corrugated plate, when the flue gas enters the second flue gas channel, the mist particles are intercepted, captured and gathered into large particles through the first collision with the corrugated plate, and then the flue gas is separated into two air flows by the first corrugated plate. Since the flow area becomes smaller, the fluid needs to pass through at a faster speed, so that the flue gas that has passed the first collision has a higher flow rate during the second collision, and the inertial force acting on the mist particles becomes larger, thereby improving the separation of gas and liquid without increasing energy consumption. After passing through the branch flue gas channel, the flue gas converges in the first flue gas channel and continues to collect mist particles after another collision to complete the demisting. At the same time, multiple demisters can be set up to improve the demisting effect.

[0009] In order to achieve at least one of the above advantages of the present invention, the present invention provides a spray tower exhaust anti-drifting device, comprising a spray tower provided with a controller, a circulation pump installed on the side of the spray tower, a bend pipe connected to the top of the spray tower, the bend pipe extending downward and connected to a wind tower, a centrifugal fan provided at the connection between the bend pipe and the wind tower, the circulation pump connected to a first frequency converter, the centrifugal fan connected to a second frequency converter, and a demister provided on the upper part of the spray tower;

[0010] An air humidity sensor is provided at the upper end of the wind tower, the air humidity sensor is electrically connected to the controller, and the controller is electrically connected to the first frequency converter and the second frequency converter;

[0011] The demister includes a first corrugated plate and a second corrugated plate spaced apart from each other, wherein the upper end and the lower end of the first corrugated plate are bent toward two sides respectively, and the middle portion of the second corrugated plate is bent toward one side;

[0012] The first corrugated plate comprises, from top to bottom, a first folded plate A, a first straight plate A, a first folded plate B, and a first straight plate B connected end to end. The first straight plate A and the first straight plate B are arranged vertically, and the first folded plate A and the folded plate B are arranged obliquely with the same inclination angle.

[0013] The second corrugated plate comprises, from top to bottom, a second straight plate A, a second folded plate A, a second straight plate B, a second folded plate B, and a second straight plate C connected end to end. The second straight plate, the second straight plate B, and the second straight plate C are arranged vertically, and the second folded plate A and the second folded plate B are arranged obliquely with the same inclination angle;

[0014] The first folding plate A, the first folding plate B, the second folding plate A, the second folding plate B and the second folding plate C are parallel to each other;

[0015] The structure of the demister allows the flue gas entering the demister to leave the demister after passing through the flue gas channel formed by the first corrugated plate and the second corrugated plate.

[0016] According to an embodiment of the present invention, a water collecting trough is provided at the lower end of the first corrugated plate.

[0017] According to an embodiment of the present invention, the first straight plate A and the second straight plate A are located on the same horizontal plane, the first folding plate B and the second folding plate A are located on the same horizontal plane, and the first straight plate B and the second straight plate B are located on the same horizontal plane.

[0018] According to an embodiment of the present invention, the first corrugated plate located between adjacent second corrugated plates is at the same distance from the second corrugated plates on both sides thereof.

[0019] According to an embodiment of the present invention, adjacent second corrugated plates form a second smoke channel, adjacent first corrugated plates form a first smoke channel, and the first corrugated plates located between adjacent second corrugated plates divide the second smoke channel into branch smoke channels.

[0020] According to an embodiment of the present invention, the tilt angle is 130 degrees to 150 degrees.

[0021] According to one embodiment of the present invention, the demister further includes two support plates, and the first corrugated plate and the second corrugated plate are connected together by the support plates, the upper support plate is connected to the middle portion of the first straight plate A and the upper end of the second straight plate A, and the lower support plate is connected to the lower end of the first straight plate B and the lower end of the second straight plate B;

[0022] Both ends of the support plate are connected to the inner side surfaces of the spray tower.

[0023] According to one embodiment of the present invention, the inside of the spray tower is provided with a circulation pool, an air chamber, a first spray chamber, a second spray chamber, a demisting chamber and a tower head which are connected end to end and through which the flue gas passes in sequence from bottom to top, and the demisting device is installed inside the demisting chamber;

[0024] A dosing tank is provided outside the spray tower, the circulation tank is connected to the dosing tank, the air chamber is connected to the flue gas inlet pipe, and the inside of the first spray chamber and the second spray chamber are both provided with a packing layer and a spray pipe. The spray pipe is located above the packing layer, and the spray pipe is connected to a circulation pipe. The lower end of the circulation pipe is connected to a circulation pump, and the lower end opening of the circulation pump is located in the dosing tank.

[0025] According to an embodiment of the present invention, a plurality of spray heads are provided below the spray pipe, and the spray heads face the filler layer. BRIEF DESCRIPTION OF THE DRAWINGS

[0026] Figure 1 This is a schematic diagram of the structure of the utility model;

[0027] Figure 2 This is a schematic diagram of the structure of the demister of the utility model;

[0028] Figure 3 This is a schematic diagram of the first corrugated plate structure of the present utility model;

[0029] Figure 4 This is a schematic diagram of the second corrugated plate structure of the present utility model;

[0030] In the attached figure: 1, circulation tank, 2, dosing tank, 3, first frequency converter, 4, circulation pump, 5, air chamber, 6, first spray chamber, 7, second spray chamber, 8, circulation pipe, 9, packing layer, 10, spray pipe, 11, demister, 12, tower head, 13, elbow, 14, centrifugal fan, 15, second frequency converter, 16, wind tower, 17, air humidity sensor, 18, rain cover, 11-1, first flue gas channel, 1 1-2, branch flue gas channel, 11-3, second flue gas channel, 11-4, first corrugated plate, 11-5, second corrugated plate, 11-6, support plate, 11-7, water collecting trough, 41, first folded plate A, 42, first straight plate A, 43, first folded plate B, 44, first straight plate B, 51, second straight plate A, 52, second folded plate A, 53, second straight plate B, 54, second folded plate B, 55, second straight plate C. DETAILED DESCRIPTION

[0031] In order to make the purpose, technical solutions and advantages of the present invention more clear, the following will be combined with the appendix of the present invention. Figure 1 ~Attached Figure 4 , the utility model is described in more detail.

[0032] The following description is intended to disclose the present invention and enable those skilled in the art to implement the present invention. The preferred embodiments described below are provided for illustrative purposes only, and those skilled in the art will readily appreciate other obvious variations. The basic principles of the present invention as defined in the following description may be applied to other embodiments, variations, improvements, equivalents, and other technical solutions that do not depart from the spirit and scope of the present invention.

[0033] Those skilled in the art should understand that, in the disclosure of the specification, the terms "longitudinal", "transverse", "up", "down", "front", "back", "left", "right", "vertical", "horizontal", "top", "bottom", "inside", "outside" and the like indicating the orientation or position relationship are based on the orientation or position relationship shown in the accompanying drawings, which are only for the convenience of describing the present invention and simplifying the description, and do not indicate or imply that the device or element referred to must have a specific orientation, be constructed and operated in a specific orientation. Therefore, the above terms cannot be understood as limiting the present invention.

[0034] It is to be understood that the term "one" should be understood as "at least one" or "one or more", that is, in one embodiment, the number of an element may be one, while in another embodiment, the number of the elements may be multiple, and the term "one" should not be understood as a limitation on the quantity.

[0035] The utility model provides a spray tower exhaust anti-drifting device, including a spray tower provided with a controller, a circulating pump 4 is installed on the side of the spray tower, a bend pipe 13 is connected to the top of the spray tower, the bend pipe 13 extends downward and is connected to a wind tower 16, a centrifugal fan 14 is provided at the connection between the bend pipe 13 and the wind tower 16, the circulating pump 4 is connected to a first frequency converter 3, the centrifugal fan 14 is connected to a second frequency converter 15, and a demister 11 is provided on the upper part of the spray tower; an air humidity sensor 17 is provided at the upper end of the wind tower 16, the air humidity sensor 17 is electrically connected to the controller, and the controller is electrically connected to the first frequency converter 3 and the second frequency converter 15; the demister 11 includes a first corrugated plate 11-4 and a second corrugated plate 11-4 arranged at intervals from each other. 5. The upper and lower ends of the first corrugated plate 11-4 are bent to both sides respectively, and the middle part of the second corrugated plate 11-5 is bent to one side; the first corrugated plate 11-4 is respectively connected end to end by a first folded plate A41, a first straight plate A42, a first folded plate B43 and a first straight plate B44, the first straight plate A42 and the first straight plate B44 are arranged vertically, and the first folded plate A41 and the first folded plate B43 are arranged obliquely and have the same inclination angle; the second corrugated plate 11-5 is respectively connected end to end by a second straight plate A51, a second folded plate A52, a second straight plate B53, a second folded plate B54 and a second straight plate C55, the second straight plate, the second straight plate B53 and the second straight plate C55 are arranged vertically, and the second folded plate A52 and the second folded plate B54 are inclined. The first folded plate A41, the first folded plate B43, the second folded plate A52, the second folded plate B54 and the second folded plate C are parallel to each other; the structure of the demister 11 allows the flue gas entering the demister 11 to leave the demister 11 after passing through the flue gas channel formed by the first corrugated plate 11-4 and the second corrugated plate 11-5; a water collecting trough 11-7 is provided at the lower end of the first corrugated plate 11-4; the first straight plate A42 and the second straight plate A51 are located on the same horizontal plane, the first folded plate B43 and the second folded plate A52 are located on the same horizontal plane, and the first straight plate B44 and the second straight plate B53 are located on the same horizontal plane; the first corrugated plate 11-4 located between adjacent second corrugated plates 11-5 is 100 mm away from the second corrugated plates 11-5 on both sides thereof The distance is the same; adjacent second corrugated plates 11-5 form a second flue gas channel 11-3, adjacent first corrugated plates 11-4 form a first flue gas channel 11-1, and the first corrugated plates 11-4 located between adjacent second corrugated plates 11-5 divide the second flue gas channel 11-3 into branch flue gas channels 11-2; the inclination angle is 130 degrees to 150 degrees; the demister 11 also includes two support plates 11-6, and the first corrugated plates 11-4 and the second corrugated plates 11-5 are connected together by the support plates 11-6, the upper support plate 11-6 is connected to the middle part of the first straight plate A42 and the upper end of the second straight plate A51, and the lower support plate 11-6 is connected to the lower end of the first straight plate B44 and the lower end of the second straight plate B53;The ends of support plates 11-6 are connected to the inner side of the spray tower. Inside the spray tower, from bottom to top, are a circulating pool 1, an air chamber 5, a first spray chamber 6, a second spray chamber 7, a demister chamber, and a tower head 12, all connected end to end and allowing flue gas to pass through in sequence. A demister 11 is installed inside the demister chamber. Outside the spray tower, a dosing pool 2 is located. The circulating pool 1 is connected to the dosing pool 2. The air chamber 5 is connected to a flue gas inlet pipe. Both the first and second spray chambers 6 and 7 are equipped with a packing layer 9 and a liquid spray pipe 10. The liquid spray pipe 10 is located above the packing layer 9 and is connected to a circulation pipe 8. The lower end of the circulation pipe 8 is connected to a circulation pump 4, the lower end of which is located in the dosing pool 2. Several nozzles are located below the spray pipe, facing the packing layer 9.

[0036] The first embodiment of the present utility model is as follows:

[0037] The spray tower exhaust anti-drifting device includes a spray tower equipped with a controller. Inside the spray tower, there are arranged, from bottom to top, a circulation pool 1, an air chamber 5, a first spray chamber 6, a second spray chamber 7, a demisting chamber and a tower head 12, which are connected end to end and allow the flue gas to pass through in sequence. The demisting device 11 is installed inside the demisting chamber.

[0038] A dosing tank 2 is provided outside the spray tower, and a circulation tank 1 is connected to the dosing tank 2. Spray liquid is stored in the circulation tank 1 and the dosing tank 2. The physical properties of the spray liquid can be monitored by a pH sensor to decide whether to add a reagent. A circulation pump 4 is installed on the side of the spray tower, and the lower end of the circulation pipe 8 is connected to the circulation pump 4. The lower end opening of the circulation pump 4 is located in the dosing tank 2. The spray liquid in the dosing tank 2 is extracted from the circulation pipe 8 and sent to the spray pipe through the circulation pump 4. A packing layer 9 and a liquid spray pipe 10 are provided inside the first spray chamber 6 and the second spray chamber 7. The liquid spray pipe 10 is located above the packing layer 9. Several nozzles are provided below the spray pipe, and the nozzles face the packing layer 9. The spray liquid is sprayed from the nozzles and falls on the packing layer 9. The air chamber 5 is connected to the flue gas inlet pipe, and the flue gas enters the air chamber 5 from the flue gas inlet pipe.

[0039] The top of the spray tower is connected to a bend pipe 13, which extends downward and is connected to a wind tower 16. A centrifugal fan 14 is provided at the connection between the bend pipe 13 and the wind tower 16. The centrifugal fan 14 generates airflow, and the flue gas flows upward from the air chamber 5 through the negative pressure effect, and passes through the first spray chamber 6, the second spray chamber 7, the defogger chamber, the tower head 12 and the bend pipe 13 in turn to enter the wind tower 16 for discharge. A rain cover 18 is provided at the upper end of the wind tower 16 to prevent rainwater from entering the wind tower and to prevent external rainwater from affecting the sensitivity of the air humidity sensor 17.

[0040] When the flue gas passes through the packing layer 9, a chemical reaction occurs with the spray liquid in the packing layer 9, removing harmful chemicals in the flue gas. However, in some cases, the gas discharged from the top of the wind tower 16 may cause water drift. The main factors causing this phenomenon are as follows:

[0041] 1. If the spray volume of the spray liquid is too large, it may cause the moisture content in the exhaust gas to increase;

[0042] 2. Too fast air flow speed will result in insufficient contact time between the exhaust gas and the spray liquid, and the moisture will not be completely removed in time.

[0043] 3. There may be defects in the design of the spray tower, such as inappropriate tower size and uneven airflow distribution, which may cause the exhaust gas to carry water.

[0044] To solve these three problems, the methods that can be adopted include adjusting the amount of spray liquid, adjusting the air flow speed, and improving the structure of the demister 11 to improve the demisting effect.

[0045] In the present application, a first frequency converter 3 is provided at the circulation pump 4, a second frequency converter 15 is provided at the centrifugal fan 14, and a demister 11 with an improved structure is provided in the demister chamber.

[0046] An air humidity sensor 17 is provided at the upper end of the wind tower 16. The air humidity sensor 17 is electrically connected to the controller, and the controller is electrically connected to the first frequency converter 3 and the second frequency converter 15.

[0047] The humidity of the treated flue gas is sensed by the sensor. When the humidity is higher than the threshold, an electrical signal is sent through the first inverter 3 and the second inverter 15 to change the power of the circulation pump 4 and the centrifugal fan 14. For example, the power of the circulation pump 4 is increased, so that the amount of spray liquid is increased to match the amount of exhaust gas, reducing the moisture content in the exhaust gas. At the same time, the speed of the spray liquid spraying out of the nozzle is increased, so that the spray liquid can be sprayed onto the packing layer 9. No spray liquid will be vaporized at the nozzle and flow with the exhaust gas, which also reduces the moisture content in the exhaust gas.

[0048] Another example is reducing the power of the centrifugal fan 14 , which, on the one hand, reduces the amount of vaporized waste gas flowing with the sprayer, and on the other hand, increases the contact time between the waste gas and the spray liquid in the packing layer 9 .

[0049] like Figures 2 to 4The demister 11 includes a first corrugated plate 11-4 and a second corrugated plate 11-5, spaced apart from each other. The upper and lower ends of the first corrugated plate 11-4 are bent to the sides, while the middle portion of the second corrugated plate 11-5 is bent to one side. When mist-laden gas flows through the demister 11 at a certain speed, the inertial impact of the gas causes the mist to collide with the corrugated plates, and the resulting droplets become so large that their own gravity exceeds the combined force of the gas's upward force and the liquid's surface tension. The droplets are then separated from the corrugated plate surface. The multi-fold structure of the demister 11's corrugated plates increases the chances of mist capture. Any mist that isn't removed is captured again at the next bend through the same process, resulting in repeated action, greatly improving demisting efficiency.

[0050] After the gas passes through the corrugated plate demister 11, it basically does not contain mist. The flue gas flows through the demister 11 at a certain speed, and the flue gas is quickly and continuously changed in direction. Due to the effects of centrifugal force and inertia, the mist droplets in the flue gas hit the blades of the demister 11 and are captured. The mist droplets gather to form a water flow, and due to the effect of gravity, they fall into the slurry pool, realizing gas-liquid separation, so that the flue gas flowing through the demister 11 meets the demisting requirements and is discharged.

[0051] The first corrugated plate 11-4 is composed of a first folded plate A41, a first straight plate A42, a first folded plate B43 and a first straight plate B44 connected end to end from top to bottom. The first straight plate A42 and the first straight plate B44 are arranged vertically, and the first folded plate A41 and the first folded plate B43 are arranged obliquely and have the same inclination angle, which is 130 degrees to 150 degrees.

[0052] The second corrugated plate 11-5 comprises, from top to bottom, a second straight plate A51, a second folded plate A52, a second straight plate B53, a second folded plate B54, and a second straight plate C55 connected end to end. The second straight plate, the second straight plate B53, and the second straight plate C55 are arranged vertically, and the second folded plate A52 and the second folded plate B54 are arranged obliquely with the same inclination angle.

[0053] The first folded plate A41, the first folded plate B43, the second folded plate A52, the second folded plate B54, and the second folded plate C are parallel to each other. The first straight plate A42 and the second straight plate A51 are located on the same horizontal plane. The first folded plate B43 and the second folded plate A52 are located on the same horizontal plane. The first straight plate B44 and the second straight plate B53 are located on the same horizontal plane. The first corrugated plate 11-4 located between adjacent second corrugated plates 11-5 is at the same distance from the second corrugated plates 11-5 on both sides thereof.

[0054] The demister 11 also includes two support plates 11-6, and the first corrugated plate 11-4 and the second corrugated plate 11-5 are connected together through the support plate 11-6. The upper support plate 11-6 is connected to the middle part of the first straight plate A42 and the upper end of the second straight plate A51, and the lower support plate 11-6 is connected to the lower end of the first straight plate B44 and the lower end of the second straight plate B53; the two ends of the support plate 11-6 are connected to the inner side of the spray tower, and the first corrugated plate 11-4 and the second corrugated plate 11-5 are installed on the tower wall through the support plate 11-6.

[0055] The overall shape of the demister 11 is the same as the cross section of the spray tower.

[0056] Through the above-defined structure, the first corrugated plate 11-4 and the second corrugated plate 11-5 are located in an staggered position, and the structure of the demister 11 enables the flue gas entering the demister 11 to leave the demister 11 after passing through the flue gas channel composed of the first corrugated plate 11-4 and the second corrugated plate 11-5.

[0057] The adjacent second corrugated plates 11-5 form the second flue gas channel 11-3, and the adjacent first corrugated plates 11-4 form the first flue gas channel 11-1. The first corrugated plates 11-4 located between the adjacent second corrugated plates 11-5 divide the second flue gas channel 11-3 into branch flue gas channels 11-2. When the flue gas enters the second flue gas channel 11-3, the mist particles are intercepted, captured and gathered into large particles through the first collision with the corrugated plates. The flue gas is then separated into two air flows by the first corrugated plates 11-4. Since the flow area becomes smaller, the fluid needs to pass through at a faster speed, so that the flue gas that has passed the first collision has a higher flow rate during the second collision, and the inertial force acting on the mist particles becomes larger, thereby improving the separation of gas and liquid without increasing energy consumption. After the flue gas passes through the branch flue gas channel 11-2, it converges in the first flue gas channel 11-1 and continues to collect mist particles after another collision to complete the demisting. At the same time, multiple demisters 11 can be set to improve the demisting effect.

[0058] A water collecting trough 11-7 is provided at the lower end of the first corrugated plate 11-4. The mist droplets gather to form a water flow, which falls into the water collecting trough 11-7 due to the action of gravity. After being gathered, they flow downward into the circulation pool 1 through the flow channel provided on the inner side of the spray tower wall.

[0059] It should be noted that the terms "first, second and third" in the present invention are only used for descriptive purposes and do not indicate any order. They cannot be understood as indicating or implying relative importance. These terms can be interpreted as names.

[0060] Those skilled in the art will appreciate that the embodiments of the present invention described above and shown in the accompanying drawings are intended only as examples and do not limit the present invention. The advantages of the present invention have been fully and effectively achieved. The functional and structural principles of the present invention have been demonstrated and illustrated in the embodiments. Any variations or modifications may be made to the embodiments of the present invention without departing from the principles herein.

Claims

1. A spray tower exhaust anti-drifting device, comprising a spray tower equipped with a controller, a circulating pump installed on the side of the spray tower, a bend connected to the top of the spray tower, the bend extending downward and connected to a wind tower, a centrifugal fan installed at the connection between the bend and the wind tower, characterized in that: The circulation pump is connected to a first frequency converter, the centrifugal fan is connected to a second frequency converter, and a demister is provided on the upper part of the spray tower; An air humidity sensor is provided at the upper end of the wind tower, the air humidity sensor is electrically connected to the controller, and the controller is electrically connected to the first frequency converter and the second frequency converter; The demister comprises a first corrugated plate and a second corrugated plate spaced apart from each other, wherein the upper and lower ends of the first corrugated plate are bent toward two sides respectively, and the middle portion of the second corrugated plate is bent toward one side; The first corrugated plate comprises, from top to bottom, a first folded plate A, a first straight plate A, a first folded plate B, and a first straight plate B connected end to end, wherein the first straight plate A and the first straight plate B are arranged vertically, and the first folded plate A and the folded plate B are arranged obliquely and have the same inclination angle; The second corrugated plate comprises, from top to bottom, a second straight plate A, a second folded plate A, a second straight plate B, a second folded plate B, and a second straight plate C connected end to end. The second straight plate, the second straight plate B, and the second straight plate C are arranged vertically, and the second folded plate A and the second folded plate B are arranged obliquely with the same inclination angle. The first folding plate A, the first folding plate B, the second folding plate A, the second folding plate B and the second folding plate C are parallel to each other; The structure of the demister allows the flue gas entering the demister to leave the demister after passing through the flue gas channel formed by the first corrugated plate and the second corrugated plate.

2. The spray tower exhaust anti-drifting device according to claim 1, characterized in that: A water collecting trough is provided at the lower end of the first corrugated plate.

3. The spray tower exhaust anti-drifting device according to claim 1, characterized in that: The first straight plate A and the second straight plate A are located on the same horizontal plane, the first folding plate B and the second folding plate A are located on the same horizontal plane, and the first straight plate B and the second straight plate B are located on the same horizontal plane.

4. The spray tower exhaust anti-drifting device according to claim 3, characterized in that: The first corrugated plate located between adjacent second corrugated plates has the same distance from the second corrugated plates on both sides thereof.

5. The spray tower exhaust anti-drifting device according to claim 4, characterized in that: The adjacent second corrugated plates form a second smoke channel, the adjacent first corrugated plates form a first smoke channel, and the first corrugated plates located between the adjacent second corrugated plates divide the second smoke channel into branch smoke channels.

6. The spray tower exhaust anti-drifting device according to claim 1, characterized in that: The inclination angle is 130 degrees to 150 degrees.

7. The spray tower exhaust anti-drifting device according to claim 3, characterized in that: The demister further includes two support plates, and the first corrugated plate and the second corrugated plate are connected together by the support plates, the upper support plate is connected to the middle of the first straight plate A and the upper end of the second straight plate A, and the lower support plate is connected to the lower end of the first straight plate B and the lower end of the second straight plate B; Both ends of the support plate are connected to the inner side surface of the spray tower.

8. The spray tower exhaust anti-drifting device according to claim 1, characterized in that: The inside of the spray tower is provided with a circulation pool, an air chamber, a first spray chamber, a second spray chamber, a demisting chamber and a tower head which are connected end to end and through which the flue gas passes in sequence from bottom to top, and the demisting device is installed inside the demisting chamber; A dosing tank is provided outside the spray tower, the circulation tank is connected to the dosing tank, the air chamber is connected to a flue gas inlet pipe, and a packing layer and a liquid spray pipe are provided inside the first spray chamber and the second spray chamber. The liquid spray pipe is located above the packing layer, and the liquid spray pipe is connected to a circulation pipe. The lower end of the circulation pipe is connected to a circulation pump, and the lower end opening of the circulation pump is located in the dosing tank.

9. The spray tower exhaust anti-drifting device according to claim 8, characterized in that: A plurality of spray heads are arranged below the liquid spray pipe, and the spray heads face the packing layer.

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