CN214159139U - Spraying system for treating electroplating waste gas - Google Patents

Abstract

The utility model relates to a handle spraying system of electroplating waste gas, it is including installing in the spray column on ground and installing in the spray column global and be equipped with the water tank of mixed liquid outward, water tank and spray column intercommunication, the air inlet that is located the water tank top is seted up to the lateral wall of spray column, the net gas export has been seted up at the top of spray column, the water pump is installed to one side of spray column, the water pump intercommunication has the shower, the one end and the water tank intercommunication of shower, the other end stretches into in the spray column and is connected with the shower nozzle, the shower nozzle is located the air inlet top, a plurality of evenly distributed's jet orifice is seted up to the lateral wall of shower nozzle. This application has the effect that makes shower spun mixed liquid can carry out fully contact and react with waste gas.

Description

Spraying system for treating electroplating waste gas

Technical Field

The application relates to the field of waste gas treatment, in particular to a spraying system for treating electroplating waste gas.

Background

The waste gas treatment mainly refers to the treatment of industrial waste gas such as dust particles, smoke and dust, peculiar smell gas and toxic and harmful gas generated in industrial places. Common waste gas purification includes factory smoke waste gas purification, workshop dust waste gas purification, organic waste gas purification, waste gas peculiar smell purification, acid-base waste gas purification, chemical waste gas purification and the like.

In the plating production process, since acid cleaning is performed using an acidic substance such as hydrochloric acid, and hydrochloric acid is volatile, acidic exhaust gas such as hydrogen chloride, acid mist, and the like, and cyanogen-containing exhaust gas, chromium-containing exhaust gas, and the like generated during plating are generated.

If these waste gases are directly discharged into the atmosphere, harmful gases such as hydrogen chloride may not only cause serious harm to human body, such as poisoning and even death of human body, but also cause serious harm to the environment, such as acid rain with strong corrosivity formed by combining with rainwater, and atmospheric pollution. Therefore, a factory generally discharges waste gas into the spray tower after electroplating, starts a water pump beside the spray tower, pumps mixed liquid formed by water and liquid medicine into the spray tower, purifies harmful gas by utilizing the reaction of the mixed liquid and the harmful gas, and then discharges the harmful gas into the atmosphere.

In view of the above-mentioned related art, the inventors considered that the mixed liquid is generally sprayed from the spray pipe in the spray tower, but the sprayed mixed liquid cannot sufficiently contact the harmful gas in the exhaust gas in the spray tower and react with the harmful gas because of the small diameter of the spray pipe.

SUMMERY OF THE UTILITY MODEL

In order to make the mixed liquid of shower spun and waste gas carry out fully contact and react to protect human body and environment, this application provides a handle electroplating waste gas's spraying system.

The application provides a handle spraying system who electroplates waste gas adopts following technical scheme:

the utility model provides a handle spraying system who electroplates waste gas, including install in the spray column on ground and install in spray column outer global and be equipped with the water tank of mixed liquid, the water tank with the spray column intercommunication, the lateral wall of spray column has been seted up and is located the air inlet of water tank top, the net gas export has been seted up at the top of spray column, the water pump is installed to one side of spray column, the water pump intercommunication has the shower, the one end of shower with water tank intercommunication, the other end stretch into in the spray column and be connected with the shower nozzle, the shower nozzle is located the air inlet top, a plurality of evenly distributed's jet orifice is seted up to the lateral wall of shower nozzle.

Through adopting above-mentioned technical scheme, the setting of a plurality of jet orifices in the shower nozzle can carry out the injection of multi-angle with the mixed liquid of water pump to shower to let and let the mixed liquid can fully contact with the harmful gas in the waste gas and react, protected human body and environment.

Optionally, the intake antrum has been seted up to the terminal surface of shower nozzle, the intake antrum with the jet orifice intercommunication, still seted up the joint groove in the shower nozzle, the joint groove with the intake antrum intercommunication, the shower is located one end in the spray column be fixed with the joint piece of joint groove looks adaptation, the joint piece passes through the joint groove with shower nozzle sliding connection, it is a plurality of the jet orifice is in just follow same direction of rotation slant setting in the shower nozzle.

Through adopting above-mentioned technical scheme, because a plurality of jet orifices set up along same direction of rotation slant, and because the existence of joint groove and joint piece, it just can drive the shower nozzle and rotate along same direction to mix the liquid, then mix the liquid just can produce centrifugal force because the rotation of shower nozzle, lead to mixing the liquid and be the heliciform ground blowout, thereby make the mixed liquid can spray in the spray column uniformly, enlarge the contact range of mixed liquid and waste gas, let the mixed liquid can contact and react with the harmful gas in the waste gas more fully.

Optionally, a rotating ring groove is further formed in the spray head, the rotating ring groove is communicated with the clamping groove, the spray head is located in the rotating ring groove and is connected with a plurality of balls in a rolling mode, and the balls are connected with the clamping blocks in a rolling mode.

Through adopting above-mentioned technical scheme, the frictional force of joint piece with the shower nozzle has been reduced in the setting of ball to more do benefit to the shower nozzle and rotate.

Optionally, a loose joint ball valve is installed on the spray pipe.

Through adopting above-mentioned technical scheme, the setting of piston ball valve on the shower can control the jet extent of spouting into the mixed liquid in the spray column, avoids appearing the mixed liquid spun scope and can not be completely with the condition of covering in the spray column.

Optionally, an observation window is installed on the outer side wall of the spray tower.

Through adopting above-mentioned technical scheme, the setting of observation window is convenient for the worker to observe the inside operation condition of spray column.

Optionally, a packing layer and a spraying layer are arranged in the spraying tower, the spray head is located in the spraying layer, the packing layer is located below the spraying layer, the air inlet is located below the packing layer, and a packing for enabling the waste gas and the mixed liquid to be in full contact is placed in the spraying layer through a packing support plate.

Through adopting above-mentioned technical scheme, the setting of packing is convenient for make harmful gas in the waste gas can fully contact with mixed liquid in the spray column to make both can fully react.

Optionally, a packing pressing plate is installed in the spray tower and above the packing.

By adopting the technical scheme, the arrangement of the packing pressing plate can be used for stabilizing the position of the packing in the spray tower.

Optionally, an anticorrosion fan is arranged on one side of the spray tower, and an air suction port of the anticorrosion fan is connected with the purified gas outlet of the spray tower through an air transmission pipe.

Through adopting above-mentioned technical scheme, anticorrosive fan's setting can be taken the waste gas in the spray column out more fast, increases exhaust purification's efficiency.

In summary, the present application includes at least one of the following beneficial technical effects:

1. the arrangement of the plurality of injection holes in the spray head can carry out multi-angle injection on the mixed liquid pumped from the water pump to the spray pipe, so that the mixed liquid can fully contact with harmful gas in waste gas and react, and the human body and the environment are protected;

2. a plurality of jet orifices set up along same direction of rotation slant, and because the existence of joint groove and joint piece, mixed liquid just can drive the shower nozzle and rotate along same direction, so mixed liquid just can produce centrifugal force because the rotation of shower nozzle, lead to mixed liquid and be the heliciform ground blowout to make mixed liquid can spray in the spray column uniformly, enlarge the contact range of mixed liquid and waste gas, let the mixed liquid can contact and react with the harmful gas in the waste gas more fully.

Drawings

FIG. 1 is a schematic diagram of an overall structure of a spraying system for treating electroplating waste gas according to an embodiment of the present disclosure.

Fig. 2 is a schematic view of the internal structures of the spray tower, the water tank and the dosing barrel in the embodiment of the application.

Fig. 3 is a partially enlarged schematic view of a portion a in fig. 2.

FIG. 4 is a schematic diagram of a fitting relationship between a nozzle and a first branch pipe in an embodiment of the present application.

Fig. 5 is a sectional view of the head in the embodiment of the present application.

FIG. 6 is a schematic diagram of the matching relationship between the rubber layer and the anchor ear.

Fig. 7 is a schematic view showing an internal structure of the horizontal portion of the shield box and the gas transfer pipe.

Description of reference numerals: 1. a spray tower; 11. a first filler layer; 111. a packing support plate; 112. polyhedral hollow spheres; 113. a packing press plate; 12. a first spray layer; 13. a second packing layer; 14. a second spray layer; 15. a demisting layer; 16. an air inlet; 17. an observation window; 18. a purified gas outlet; 2. a medicine adding barrel; 21. a connecting pipe; 22. a discharge pipe; 23. a floating ball; 24. a visual window; 25. a support frame; 3. a water tank; 31. a shower pipe; 311. a main pipe; 312. a first branch pipe; 313. a second branch pipe; 32. a water pump; 33. a loose joint ball valve; 34. a clamping block; 4. a spray head; 41. a water inlet groove; 42. a clamping groove; 43. an injection hole; 44. rotating the ring groove; 45. a ball bearing; 5. a gas transmission pipe; 51. an air intake portion; 52. a horizontal portion; 53. a gas flow meter; 6. an anti-corrosion fan; 61. a rubber layer; 62. hooping; 63. mounting lugs; 64. fixing the bolt; 65. fixing a nut; 7. a discharge pipe; 8. a protection box; 81. a servo motor; 82. a drive gear; 83. a driven gear; 84. rotating the rod; 85. a rotating plate; 86. and a controller.

Detailed Description

The present application is described in further detail below with reference to figures 1-7.

The embodiment of the application discloses a spraying system for treating electroplating waste gas. Referring to fig. 1, the spraying system includes a spray tower 1, a water tank 3 is installed on the outer peripheral surface of the spray tower 1, the bottom of the water tank 3 is communicated with the bottom of the spray tower 1, a chemical adding barrel 2 is installed on one side of the spray tower 1 through a support frame 25, the chemical adding barrel 2 is located on one side of the water tank 3 far away from the spray tower 1, and the bottom of the chemical adding barrel 2 is communicated with the top of the water tank 3 through a connecting pipe 21.

Referring to fig. 2, the interior of the spray tower 1 is sequentially provided with: a first packing layer 11, a first spraying layer 12, a second packing layer 13, a second spraying layer 14 and a demisting layer 15, wherein the outer peripheral surface of the spray tower 1 far away from the water tank 3 is provided with an air inlet 16 for waste gas to enter, the air inlet 16 is positioned above the water tank 3 and below the first packing layer 11, one side of the water tank 3 far away from the spray tower 1 is provided with a water pump 32, the water inlet of the water pump 32 is communicated with the bottom of the water tank 3, the water outlet of the water pump 32 is communicated with a spray pipe 31, the spray pipe 31 is divided into a main pipe 311, the spray tower comprises a first branch pipe 312 and a second branch pipe 313, one end of a main pipe 311 is communicated with a water outlet of a water pump 32, the other end of the main pipe 311 is communicated with the second branch pipe 313, one end of the first branch pipe 312 is communicated with the outer peripheral surface of the main pipe 311, the other end of the first branch pipe 312 extends into a first spray layer 12, one end, far away from the main pipe 311, of the second branch pipe 313 extends into a second spray layer 14, and the end portions, located in the spray tower 1, of the first branch pipe 312 and the second branch pipe 313 are connected with spray heads 4.

Referring to fig. 2, the spray tower 1 is provided with two packing support plates 111, the two packing support plates 111 are respectively located at the bottoms of the first packing layer 11 and the second packing layer 13, the first packing layer 11 and the second packing layer 13 are internally provided with packing, the packing can be raschig rings and other objects with large specific surface area, large porosity, high strength, difficult damage, light weight and corrosion resistance, in the embodiment, the packing is a multi-surface hollow sphere 112, the multi-surface hollow spheres 112 are provided in a plurality and are placed on the top surfaces of the two packing support plates 111 in a random stacking manner, the spray tower 1 is further provided with two packing press plates 113, the packing press plates 113 are provided in two numbers, one packing press plate 113 is located between the first packing layer 11 and the first spray layer 12, the other packing press plate 113 is located between the second packing layer 13 and the second spray layer 14, the top surfaces of the packing support plates 111 and the packing press plates 113 are provided with a plurality of vent holes, the polyhedral hollow sphere 112 is added to allow the exhaust gas to sufficiently contact the mixture liquid and to sufficiently react with the mixture liquid, and the packing plate 113 is provided to stabilize the position of the polyhedral hollow sphere 112 by preventing the polyhedral hollow sphere 112 from being blown by the updraft.

Referring to fig. 2, a plurality of observation windows 17 are installed on the outer peripheral surface of the spray tower 1 away from the water tank 3, in this embodiment, the number of the observation windows 17 is four, the four observation windows 17 are vertically distributed at intervals on the outer side wall of the spray tower 1, and an operator can conveniently observe the operation condition in the spray tower 1 through the observation windows 17.

Referring to fig. 2 and 3, a discharge pipe 22 is communicated with the bottom of the side surface of the dosing barrel 2, the outer peripheral surfaces of the first branch pipe 312 and the second branch pipe 313 outside the spray tower 1 are respectively provided with a loose joint ball valve 33, the outer peripheral surface of the main pipe 311 below the first branch pipe 312, the outer peripheral surface of the connecting pipe 21 and the outer peripheral surface of the discharge pipe 22 are also provided with loose joint ball valves 33, the loose joint ball valves 33 on the outer peripheral surfaces of the first branch pipe 312 and the second branch pipe 313 are used for controlling the water inflow of the first branch pipe 312 and the second branch pipe 313, the loose joint ball valve 33 on the connecting pipe 21 is used for controlling the amount of the liquid medicine added into the dosing barrel 2, the discharge pipe 22 is used for discharging redundant liquid medicine, and the loose joint ball valve 33 on the discharge pipe 22 is used for controlling the amount of the liquid medicine discharged from the discharge pipe 22.

Referring to fig. 3, a floating ball 23 capable of detecting a water level is arranged in the medicine adding barrel 2, a visual window 24 is arranged on the outer side wall of the medicine adding barrel 2, and an operator can observe the position of the floating ball 23 in the medicine adding barrel 2 through the visual window 24, so that the residual amount of the liquid medicine in the medicine adding barrel 2 can be observed visually.

Referring to fig. 1 and 2, a clean gas outlet 18 is formed in the top of the spray tower 1, an anticorrosion fan 6 is mounted on the ground on one side of the spray tower 1, a gas suction port of the anticorrosion fan 6 is connected with the clean gas outlet 18 of the spray tower 1 through a gas transmission pipe 5, a gas exhaust port of the anticorrosion fan 6 is connected with a gas exhaust pipe 7, and waste gas in the spray tower 1 can be extracted out more quickly through the arrangement of the anticorrosion fan 6.

Referring to fig. 2 and 3, the worker first opens the union ball valve 33 on the connection pipe 21 to mix the liquid medicine in the medicine adding barrel 2 with the water in the water tank 3 to form a mixed liquid, and then closes the union ball valve 33 on the connection pipe 21; and then the water pump 32 is started, the ball valves 33 on the main pipe 311, the first branch pipe 312 and the second branch pipe 313 are opened, the mixed liquid in the water tank 3 is respectively pumped to the first branch pipe 312 and the second branch pipe 313 by the water pump 32 along the main pipe 311, then is sprayed to the multi-surface hollow spheres 112 of the first packing layer 11 and the second packing layer 13 through the spray head 4, finally flows to the ground of the spray tower 1 and flows back to the water tank 3.

Then, the worker opens the anti-corrosion fan 6, so that the waste gas containing the harmful gas enters the spray tower 1 through the gas inlet 16, the waste gas sequentially passes through the first packing layer 11, the first spray layer 12, the second packing layer 13 and the second spray layer 14, and the waste gas and the mixed liquid are subjected to sufficient reaction to reduce the content of the harmful gas in the waste gas; and then the waste gas is dehydrated and demisted through the demisting layer 15, passes through the purified gas outlet 18, the gas transmission pipe 5 and the anti-corrosion fan 6 in sequence, and is finally discharged to the atmosphere through the discharge pipe 7.

Referring to fig. 2 and 4, in order to make the mixed liquid be more uniformly sprayed in the spray tower 1, taking the spray head 4 in the first spray layer 12 as an example, the cross section of the first branch pipe 312 in the first spray layer 12 is a cross section of a form of a square, the end of the first branch pipe 312 in the first spray layer 12 is fixed with the clamping block 34, the clamping block 34 can be a cuboid, a circular truncated cone, and the like, the clamping block 34 in this embodiment is a circular truncated cone, the end surface of the spray head 4 close to the first branch pipe 312 is provided with the water inlet groove 41, one end of the spray head 4 in the first spray layer 12 is slidably connected with the first branch pipe 312 through the water inlet groove 41, the spray head 4 is further provided with the clamping groove 42 adapted to the clamping block 34, and the clamping block 34 is located in the clamping groove 42 and slidably connected with the spray head 4 through the clamping groove 42.

Referring to fig. 4 and 5, a plurality of injection holes 43 are formed in the outer side wall of the nozzle 4, the plurality of injection holes 43 are obliquely arranged along the same rotating direction and are uniformly distributed in the nozzle 4, the injection holes 43 are communicated with the water inlet groove 41, the injection holes 43 are located below the clamping block 34, the injection holes 43 located on the same cross section are set to be one injection layer, the number of the injection layers on the nozzle 4 is two, and the two injection layers are vertically distributed in the nozzle 4 at intervals.

Referring to fig. 2 and 4, the second branch pipe 313 and the spray head 4 in the second spraying layer 14 are arranged in the same way as the first branch pipe 312 and the spray head 4 in the first spraying layer 12, the mixed liquid is pumped into the first branch pipe 312 and the second branch pipe 313 through the water pump 32 and then flows to the spray head 4, and the plurality of spray holes 43 are obliquely arranged along the same rotating direction, so that the spray head 4 rotates around one direction due to the spraying of the mixed liquid, the rotation of the spray head 4 generates centrifugal force, the mixed liquid is sprayed spirally, the mixed liquid can be uniformly sprayed in the spraying tower 1, and the mixed liquid can be fully contacted with the waste gas and react.

Referring to fig. 4, in order to make the nozzle 4 rotate more easily, a rotating ring groove 44 is further formed in the nozzle 4, the rotating ring groove 44 is communicated with the clamping groove 42, a plurality of balls 45 are connected in the nozzle 4 and positioned in the rotating ring groove 44 in a rolling manner, and the balls 45 are connected with the top surface of the clamping block 34 in a rolling manner.

Referring to fig. 1 and 6, the air suction port of the anti-corrosion fan 6 is sleeved with the air transmission pipe 5, the exhaust port of the anti-corrosion fan 6 is sleeved with the exhaust pipe 7, the air transmission pipe 5 and the exhaust pipe 7 are both sleeved with a rubber layer 61, the outer peripheral surface of the rubber layer 61 is sleeved with a hoop 62, two mounting lugs 63 of the hoop 62 are connected through a fixing bolt 64, the outer peripheral surface of the fixing bolt 64 is in threaded connection with a fixing nut 65, the fixing nut 65 is located on one side, away from the head of the fixing bolt 64, of the mounting lug 63, the air transmission pipe 5 and the anti-corrosion fan 6 can be connected through the arrangement, the exhaust pipe 7 and the anti-corrosion fan 6 are more stably connected, and the escape of waste gas is reduced.

Referring to fig. 1 and 7, the gas transmission pipe 5 is divided into a gas inlet portion 51 and a horizontal portion 52, one end of the gas inlet portion 51, which is far away from the corrosion prevention fan 6, is sleeved on the clean gas outlet 18 of the spray tower 1, one end of the horizontal portion 52, which is far away from the spray tower 1, is connected with the corrosion prevention fan 6 through a rubber layer 61 and a hoop 62, an adjusting assembly is installed in the horizontal portion 52 of the gas transmission pipe 5, the adjusting assembly includes a servo motor 81, a driving gear 82, a driven gear 83, a rotating rod 84 and a rotating plate 85, the ground on one side of the horizontal portion 52 of the gas transmission pipe 5 is provided with the protection box 8, the servo motor 81, the driving gear 82 and the driven gear 83 are all installed in the protection box 8, the driving gear 82 is fixedly connected to an output shaft of the servo motor 81, the driven gear 83 is located above the driving gear 82 and is engaged with the driving gear 82, the rotating plate 85 is rotatably connected to the inner side wall of the horizontal portion 52 of the gas transmission pipe 5, and the rotating plate 85 can be used for sealing the horizontal portion 52 of the gas transmission pipe 5, the rotating rod 84 is located outside the protection box 8, one end of the rotating rod 84 slides to penetrate through the side surface of the protection box 8 and is fixedly connected with the driven gear 83, the other end of the rotating rod 84 slides to penetrate through the side surface of the horizontal part 52 of the gas transmission pipe 5 and is fixedly connected with the outer side wall of the rotating plate 85, the output shaft of the servo motor 81 and the driving gear 82 are arranged coaxially, and the rotating rod 84 and the driven gear 83 are arranged coaxially.

Referring to fig. 1 and 7, the worker starts the servo motor 81, the servo motor 81 drives the driving gear 82 to rotate, the driving gear 82 drives the driven gear 83 to synchronously rotate, the rotating rod 84 synchronously rotates, the rotating plate 85 synchronously rotates, and under the condition that the rotating speed of the anticorrosion fan 6 is not changed, the horizontal part 52 of the gas transmission pipe 5 can gradually seal or open the gas transmission pipe 5 through the rotation of the rotating plate 85, so that the gas passing through the rotating plate 85 is reduced or increased, and the opening degree of the anticorrosion fan 6 can be adjusted. When the content of harmful gas in the waste gas entering the spray tower 1 is higher, the opening degree of the corrosion-resistant fan 6 can be adjusted by starting the servo motor 81, so that the amount of the waste gas extracted by the corrosion-resistant fan 6 is reduced, the waste gas containing the harmful gas stays in the spray tower 1 for a longer time, and the harmful gas can be reacted with the mixed liquid in the spray tower 1 more completely and then extracted by the corrosion-resistant fan 6.

Referring to fig. 1 and 7, a gas flow meter 53 is installed in the horizontal portion 52 of the gas transmission pipe 5, the gas flow meter 53 is located between the rotating plate 85 and the corrosion-resistant fan 6, a controller 86 is installed on the outer side surface of the protection box 8, and both the gas flow meter 53 and the servo motor 81 are electrically connected with the controller 86. With the arrangement, the servo motor 81 can be controlled to be started or closed only by pressing the controller 86, so that the worker can conveniently adjust the rotation of the rotating plate 85, and the labor intensity of the worker is reduced.

The implementation principle of the spraying system for treating electroplating waste gas in the embodiment of the application is as follows: the worker opens the union ball valve 33 on the connecting pipe 21 first, add the liquid medicine in the medicine adding barrel 2 into the water tank 3 to form mixed liquid, and observe the position of the floating ball 23 by means of the observation window 17, judge the amount of the added liquid medicine by the position of the floating ball 23, close the union ball valve 33 of the connecting pipe 21 until suitable, then open the union ball valves 33 on the main pipe 311, the first branch pipe 312 and the second branch pipe 313, and start the water pump 32, the mixed liquid can be sprayed out at the spray head 4, then open the anticorrosive blower 6, and exhaust the waste gas into the spray tower 1 from the air inlet 16, after the waste gas fully reacts with the mixed liquid in the spray tower 1, the waste gas is dehydrated and demisted through the demisting layer 15, then is discharged to the air delivery pipe 5 from the clean gas outlet 18, and finally is discharged from the discharge pipe 7.

When the content of harmful gases such as hydrogen chloride in the waste gas entering the spray tower 1 is high, the worker starts the servo motor 81 through the controller 86, finally the rotating plate 85 synchronously rotates in the gas transmission pipe 5 and seals or opens the gas transmission pipe 5, and the opening degree of the anti-corrosion fan 6 can be observed through the gas flowmeter 53; when the rotating plate 85 is gradually closed, the exhaust gas discharge amount is reduced, so that the exhaust gas stays in the spray tower 1 for a longer time and is discharged after reacting with the mixed liquid in the spray tower 1 more completely, thereby reducing the harm of the discharged exhaust gas to the environment.

The above embodiments are preferred embodiments of the present application, and the protection scope of the present application is not limited by the above embodiments, so: all equivalent changes made according to the structure, shape and principle of the present application shall be covered by the protection scope of the present application.

Claims (8)

1. The utility model provides a handle spraying system of electroplating waste gas which characterized in that: including install in spray column (1) on ground and install in spray column (1) outer peripheral face just is equipped with water tank (3) of mixed liquid, water tank (3) with spray column (1) intercommunication, the lateral wall of spray column (1) is seted up and is located air inlet (16) of water tank (3) top, net gas outlet (18) have been seted up at the top of spray column (1), water pump (32) are installed to one side of spray column (1), water pump (32) intercommunication has shower (31), the one end of shower (31) with water tank (3) intercommunication, the other end stretch into spray column (1) are interior and be connected with shower nozzle (4), shower nozzle (4) are located air inlet (16) top, a plurality of evenly distributed's jet orifice (43) have been seted up to the lateral wall of shower nozzle (4).

2. The spray system for treating electroplating waste gas according to claim 1, wherein: intake chamber (41) have been seted up to the terminal surface of shower nozzle (4), intake chamber (41) with jet orifice (43) intercommunication, joint groove (42) have still been seted up in shower nozzle (4), joint groove (42) with intake chamber (41) intercommunication, shower (31) are located one end in spray column (1) be fixed with joint piece (34) of joint groove (42) looks adaptation, joint piece (34) pass through joint groove (42) with shower nozzle (4) sliding connection, it is a plurality of jet orifice (43) are in just follow same direction of rotation slant setting in shower nozzle (4).

3. The spray system for treating electroplating waste gas according to claim 2, wherein: rotating ring groove (44) have still been seted up in shower nozzle (4), rotating ring groove (44) with joint groove (42) communicate with each other, shower nozzle (4) just are located it has a plurality of balls (45) to rotate the roll connection in ring groove (44), ball (45) with joint piece (34) roll connection.

4. The spray system for treating electroplating waste gas according to claim 1, wherein: and a loose joint ball valve (33) is arranged on the spray pipe (31).

5. The spray system for treating electroplating waste gas according to claim 1, wherein: and an observation window (17) is arranged on the outer side wall of the spray tower (1).

6. The spray system for treating electroplating waste gas according to claim 1, wherein: the spray tower is characterized in that a packing layer and a spray layer are arranged in the spray tower (1), the spray head (4) is positioned in the spray layer, the packing layer is positioned below the spray layer, the air inlet (16) is positioned below the packing layer, and a packing for enabling waste gas to be in full contact with mixed liquid is placed in the spray layer through a packing support plate (111).

7. The spray system for treating electroplating waste gas according to claim 6, wherein: and a packing pressing plate (113) is arranged in the spray tower (1) and above the packing.

8. The spray system for treating electroplating waste gas according to claim 1, wherein: an anti-corrosion fan (6) is arranged on one side of the spray tower (1), and an air suction port of the anti-corrosion fan (6) is connected with the clean air outlet (18) of the spray tower (1) through an air transmission pipe (5).

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