Electroplating waste gas purification treatment device

Abstract

The invention relates to the technical field of waste gas purification treatment, and discloses an electroplating waste gas purification treatment device which comprises a purification assembly and an adsorption assembly, the adsorption assembly is arranged on one side of the purification assembly, a spraying assembly and an adjusting assembly are arranged in the purification assembly, and the adjusting assembly is arranged below the spraying assembly. According to the acid mist waste gas treatment device, through cooperation of the adjusting assembly and the spraying assembly, an alkaline spraying liquid and acid mist waste gas are subjected to an acid-base neutralization reaction, primary purification treatment is achieved, and the acid mist waste gas in the treatment tower sequentially passes through filler balls in an elastic net and filler balls on a filler supporting plate when moving upwards; the contact area between the acid mist waste gas and the alkaline spraying liquid is increased, so that adsorption, dissolution and reaction can be better carried out, the purification effect is improved, then the waste gas subjected to primary purification treatment is subjected to secondary purification treatment through the adsorption assembly, and the emission requirement of the local emission standard is met.

Description

Technical Field

[0001] The invention belongs to the technical field of waste gas purification and treatment, and in particular is a device for purifying and treating electroplating waste gas. Background Art

[0002] Waste gas from the electroplating industry mainly comes from evaporation, spillage, spraying, cleaning, drying and other links in the electroplating production process. The electroplating industry is a heavily polluting industry. Electroplating uses a large amount of toxic and harmful materials, such as hydrochloric acid, sulfuric acid, nitric acid, phosphoric acid, hydrofluoric acid, chromic acid, sodium hydroxide, sodium cyanide and a large number of metal salts. These chemical materials will emit different degrees of gas during storage and use. Some gases will irritate the eyes, nose, throat, and skin and cause inflammation. Some gases, such as nickel salt vapor, will cause skin allergies in some people. Inhalation of large amounts of chromic acid gas can also cause damage to human organs and even cause cancer. Cyanide is very easily absorbed by the human body and can enter the body through the mouth, respiratory tract or skin.

[0003] For example, a Chinese patent with application number 2018210734749 discloses an electroplating waste gas treatment system, including a wind hood, a fan and a purification tower arranged on an electroplating tank, and also including an adsorption device, a circulating water tank, a dosing device and a controller; the purification tower is provided with multiple packing layers, and a spray head is provided above each packing layer, and each spray head is connected to a spray pipe; the liquid outlet of the purification tower is connected to the liquid inlet pipe of the circulating water tank, and a detection device is provided in the circulating water tank; the dosing device is connected to the circulating water tank; the fan, the detection device, each solenoid valve and the dosing device are all connected to the controller; the air outlet of the purification tower is connected to the air inlet of the adsorption device, and the air outlet of the adsorption device is connected to the atmosphere, but the exhaust gas does not fully react with the spray liquid, and the purification treatment effect is poor.

[0004] Based on the above scheme, the spray range of the existing spray device cannot be adjusted according to the diameter of the treatment tower, which easily causes uneven spraying; due to the uneven exhaust gas entering the treatment tower, the exhaust gas and the spray liquid cannot fully react, thereby affecting the purification effect; due to the long-term use of impurities on the filler balls of the elastic net, the permeability is reduced, and the uneven exhaust gas will aggravate the different degrees of blockage of the filler balls at different positions in the elastic net, thereby affecting the purification effect. Summary of the invention

[0005] In view of the above problems, the present invention provides an electroplating waste gas purification and treatment device to solve the problems raised in the above background technology.

[0006] To achieve the above object, the present invention provides the following technical solution: an electroplating waste gas purification treatment device, comprising a purification component and an adsorption component, wherein the adsorption component is arranged on one side of the purification component, and a spray component and an adjustment component are arranged inside the purification component, wherein the adjustment component is arranged below the spray component;

[0007] The spray assembly comprises a spray pipe, a branch pipe is arranged on the surface of the spray pipe, an adjusting pipe is arranged at one end of the branch pipe away from the spray pipe, an elbow is arranged at one end of the adjusting pipe away from the branch pipe, and a spray head is arranged at one end of the elbow away from the adjusting pipe;

[0008] A sliding ring is fixedly arranged on the surface of the regulating tube, an armature ring is arranged on the surface of the sliding ring, a spring is arranged on the end of the armature ring away from the sliding ring, an electromagnet is arranged on the end of the spring away from the armature ring, and the end of the electromagnet away from the spring is fixedly connected to the branch tube;

[0009] The adjustment assembly includes a fixing ring, an elastic net is arranged below the fixing ring, a fixing plate is arranged on the surface of the fixing ring, a plurality of fixing seats are arranged on the surface of the fixing plate, an electric telescopic rod is arranged at the center position of the surface of the fixing seat, a connecting piece is arranged at the output end of the electric telescopic rod, and the end of the connecting piece away from the electric telescopic rod is connected to the elastic net.

[0010] Preferably, there are multiple fixing plates, and the multiple fixing plates are arranged in a ring shape and equidistantly above the fixing ring. A fixing groove is provided at the position where the fixing plate is connected to the fixing seat, and a plurality of through grooves are provided on the surface of the elastic net.

[0011] Preferably, a mounting tube is provided above the spray pipe, the spray pipe is movably connected to the mounting tube, a mounting seat is provided on the surface of the mounting tube, connecting frames are provided at both ends of the mounting seat, a fixing frame is provided at the end of the connecting frame away from the mounting seat, a motor is provided above the fixing frame, a rotating cylinder is provided at one end of the motor output shaft, a rotating rod is provided inside the rotating cylinder, a diverter plate is provided at the end of the rotating rod away from the rotating cylinder, and the end of the diverter plate away from the rotating rod is connected to the spray pipe.

[0012] Preferably, one end of the motor output shaft passes through and extends into the interior of the mounting tube, a rotation groove is provided at the position where the motor is connected to the mounting tube, a plurality of water inlet grooves are provided on the surface of the diverter plate, and a slide groove is provided at the position where the rotating rod is connected to the rotating cylinder.

[0013] Preferably, a cylinder is arranged below the mounting seat, a connecting plate is arranged at one end of the cylinder away from the mounting seat, the connecting plate is arranged on the outer surface of the spray pipe, and a limiting groove is provided at the position where the connecting plate is connected to the spray pipe.

[0014] Preferably, the purification component comprises a treatment tower, a sieve plate is arranged inside the treatment tower, a plurality of sieve holes are opened on the surface of the sieve plate, and a plurality of drainage pipes corresponding to the sieve holes are arranged below the sieve plate;

[0015] A gas control valve is arranged inside the drainage tube, and a gas sensor is arranged inside the sieve hole.

[0016] Preferably, an air inlet pipe is provided on one side of the treatment tower, an exhaust pipe is provided on the end of the treatment tower away from the air inlet pipe, a circulating water tank is provided on one side of the treatment tower, a sewage pipe is provided on the end of the circulating water tank close to the treatment tower, a water pump is provided above the circulating water tank, a first water supply pipe is provided at the end of the water pump away from the circulating water tank, a sprayer is provided at the end of the first water supply pipe away from the water pump, the sprayer is provided inside the treatment tower, a packing support plate is provided below the sprayer, and a demister is provided above the sprayer.

[0017] Preferably, a tee is provided at a position of the first water supply pipe close to the water pump, a second water supply pipe is provided at an end of the tee away from the first water supply pipe, one end of the second water supply pipe passes through and extends to the interior of the mounting pipe, and regulating valves are provided on both the first water supply pipe and the second water supply pipe.

[0018] Preferably, the adsorption assembly includes an adsorption box, a protective plate is arranged inside the adsorption box, a limiting frame is arranged on the surface of the protective plate, a plurality of activated carbon plates are arranged inside the limiting frame, an air duct is arranged on one side of the adsorption box, an air outlet pipe is arranged at one end of the adsorption box away from the air duct, and the end of the air duct away from the adsorption box is connected to the exhaust pipe.

[0019] Compared with the prior art, the present invention has the following beneficial effects:

[0020] 1. The present invention achieves primary purification by cooperating the regulating component and the spraying component to make the alkaline spraying liquid and the acid mist waste gas undergo acid-base neutralization reaction, and performs secondary purification on the waste gas after the primary purification through the adsorption component to improve the purification effect.

[0021] 2. The present invention detects the amount of exhaust gas passing through the sieve holes through a gas sensor, and then calculates the amount of exhaust gas at the sieve holes at different positions of the sieve plate through comparison, thereby determining whether the exhaust gas entering the treatment tower is evenly distributed. If it is uneven, the deformation of the elastic net is adjusted to adjust the distribution of the filler balls in the elastic net, and the spray range of the spray assembly is adjusted at the same time, so that the exhaust gas and the spray liquid can fully react to improve the reaction effect.

[0022] 3. The present invention controls the four electric telescopic rods on the fixed plate to extend or contract synchronously through a controller, and the extension or contraction of the four electric telescopic rods on the four fixed plates is staggered, so that the filler balls in the elastic net are evenly mixed, which can not only make the filler balls collide with each other to make impurities adhered to the surface of the filler balls fall off, but also enhance permeability and avoid clogging of the filler balls. BRIEF DESCRIPTION OF THE DRAWINGS

[0023] Figure 1 It is a schematic diagram of the overall structure of the present invention from a first viewing angle;

[0024] Figure 2 It is a schematic diagram of the overall structure of the present invention from a second viewing angle;

[0025] Figure 3 It is a schematic cross-sectional view of the treatment tower structure of the present invention;

[0026] Figure 4 For the present invention Figure 3 A magnified image of point A;

[0027] Figure 5 This is a schematic diagram of the assembly structure of the spray assembly and the adjustment assembly of the present invention;

[0028] Figure 6 It is a schematic diagram of the structure of the spray assembly of the present invention;

[0029] Figure 7 For the present invention Figure 6 A magnified view of point B;

[0030] Figure 8 It is a partial cross-sectional schematic diagram of the structure of the spray assembly of the present invention;

[0031] Fig. 9 For the present invention Figure 8 Enlarged view of point C;

[0032] Fig.10 It is a cross-sectional schematic diagram of the branch pipe structure of the present invention;

[0033] Fig.11 This is a schematic diagram of the structure of the regulating component of the present invention;

[0034] Fig.12 It is a front cross-sectional schematic diagram of the regulating assembly structure of the present invention;

[0035] Fig.13 It is a partial cross-sectional schematic diagram of the adsorption box structure of the present invention.

[0036] In the figure: 1. Purification component; 101. Treatment tower; 102. Sieve plate; 103. Sieve hole; 104. Drainage pipe; 105. Filler support plate; 106. Sprinkler; 107. Demister; 108. Air inlet pipe; 109. Exhaust pipe; 110. Sewage pipe; 111. Circulating water tank; 112. Water pump; 113. First water supply pipe; 114. Tee; 115. Second water supply pipe; 2. Spraying component; 201. Mounting pipe; 202. Spraying pipe; 203. Branch pipe; 204. Adjusting pipe; 205. Elbow pipe; 206. Spraying head; 207. Sliding ring; 208. Iron ring; 209, spring; 210, electromagnet; 211, mounting seat; 212, cylinder; 213, connecting plate; 214, connecting frame; 215, fixing frame; 216, motor; 217, rotating cylinder; 218, rotating rod; 219, diverter plate; 3, adjustment component; 301, fixing ring; 302, elastic net; 303, fixing plate; 304, fixing seat; 305, electric telescopic rod; 306, connecting piece; 4, adsorption component; 401, adsorption box; 402, protective plate; 403, limiting frame; 404, activated carbon plate; 405, air guide pipe; 406, air outlet pipe. DETAILED DESCRIPTION

[0037] The following will be combined with the drawings in the embodiments of the present invention to clearly and completely describe the technical solutions in the embodiments of the present invention. Obviously, the described embodiments are only part of the embodiments of the present invention, not all of the embodiments. Based on the embodiments of the present invention, all other embodiments obtained by ordinary technicians in this field without creative work are within the scope of protection of the present invention.

[0038] like Figures 1 to 13 As shown, an electroplating waste gas purification treatment device of the present invention includes a purification component 1 and an adsorption component 4, the adsorption component 4 is arranged on one side of the purification component 1, and a spray component 2 and an adjustment component 3 are arranged inside the purification component 1, and the adjustment component 3 is arranged below the spray component 2.

[0039] like Figure 3 , Figure 4 As shown, the purification component 1 includes a treatment tower 101 , a sieve plate 102 is arranged inside the treatment tower 101 , a plurality of sieve holes 103 are opened on the surface of the sieve plate 102 , and a plurality of drainage pipes 104 corresponding to the sieve holes 103 are arranged below the sieve plate 102 .

[0040] An air inlet pipe 108 is provided on one side of the treatment tower 101, an exhaust pipe 109 is provided on the end of the treatment tower 101 away from the air inlet pipe 108, a circulating water tank 111 is provided on one side of the treatment tower 101, a sewage pipe 110 is provided on the end of the circulating water tank 111 close to the treatment tower 101, a water pump 112 is provided above the circulating water tank 111, a first water supply pipe 113 is provided on the end of the water pump 112 away from the circulating water tank 111, and a three-way valve is provided at the position of the first water supply pipe 113 close to the water pump 112. 114, a second water supply pipe 115 is provided at one end of the tee 114 away from the first water supply pipe 113, regulating valves are provided on the first water supply pipe 113 and the second water supply pipe 115, and the regulating valves are used to adjust the flow rate, a sprayer 106 is provided at one end of the first water supply pipe 113 away from the water pump 112, the sprayer 106 is arranged inside the treatment tower 101, a packing support plate 105 is provided below the sprayer 106, and a demister 107 is provided above the sprayer 106.

[0041] like Figures 6 to 8 As shown, the spray assembly 2 includes a spray pipe 202, a branch pipe 203 is provided on the surface of the spray pipe 202, an adjusting pipe 204 is installed at one end of the branch pipe 203 away from the spray pipe 202, an elbow 205 is provided at one end of the adjusting pipe 204 away from the branch pipe 203, and a spray head 206 is provided at one end of the elbow 205 away from the adjusting pipe 204;

[0042] A mounting pipe 201 is arranged above the spray pipe 202, one end of the second water supply pipe 115 penetrates and extends into the interior of the mounting pipe 201, the spray pipe 202 is movably connected to the mounting pipe 201, a mounting seat 211 is arranged on the surface of the mounting pipe 201, connecting frames 214 are arranged at both ends of the mounting seat 211, a fixing frame 215 is arranged at one end of the connecting frame 214 away from the mounting seat 211, a motor 216 is arranged above the fixing frame 215, and a rotating cylinder 217 is arranged at one end of the output shaft of the motor 216. A rotating rod 218 is arranged inside the rotating cylinder 217, and a diverter plate 219 is arranged at one end of the rotating rod 218 away from the rotating cylinder 217, and one end of the diverter plate 219 away from the rotating rod 218 is connected to the spray pipe 202, one end of the output shaft of the motor 216 passes through and extends to the inside of the mounting tube 201, a rotating groove is provided at the position where the motor 216 is connected to the mounting tube 201, a plurality of water inlet grooves are provided on the surface of the diverter plate 219, and a slide groove is provided at the position where the rotating rod 218 is connected to the rotating cylinder 217.

[0043] A cylinder 212 is disposed below the mounting seat 211 , and a connecting plate 213 is disposed at one end of the cylinder 212 away from the mounting seat 211 . The connecting plate 213 is disposed on the outer surface of the spray pipe 202 , and a limiting groove is provided at the position where the connecting plate 213 is connected to the spray pipe 202 .

[0044] When in use, the controller controls the cylinder 212 to extend, and the cylinder 212 pushes the connecting plate 213 and the spray pipe 202 to move downward. During this process, the spray pipe 202 drives the diverter plate 219 and the rotating rod 218 and makes the rotating rod 218 move downward along the slide groove on the inner wall of the rotating cylinder 217, thereby reducing the spraying height of the spray head 206 on the spray pipe 202.

[0045] like Fig.11 As shown, the adjustment component 3 includes a fixing ring 301, an elastic net 302 is arranged below the fixing ring 301, a fixing plate 303 is arranged on the surface of the fixing ring 301, a plurality of fixing seats 304 are arranged on the surface of the fixing plate 303, an electric telescopic rod 305 is arranged at the center position of the surface of the fixing seat 304, a connecting piece 306 is arranged at the output end of the electric telescopic rod 305, and the end of the connecting piece 306 away from the electric telescopic rod 305 is connected to the elastic net 302, there are multiple fixing plates 303, and the multiple fixing plates 303 are arranged in a ring shape and equidistantly above the fixing ring 301, a fixing groove is provided at the position where the fixing plate 303 is connected to the fixing seat 304, and a plurality of through grooves are provided on the surface of the elastic net 302.

[0046] When in use, the controller controls the electric telescopic rod 305 to extend, so that the electric telescopic rod 305 pushes the connecting piece 306 and the elastic net 302 to move downward, so that the elastic net 302 is deformed.

[0047] like Fig.13 As shown, the adsorption assembly 4 includes an adsorption box 401, a protective plate 402 is arranged inside the adsorption box 401, a limiting frame 403 is arranged on the surface of the protective plate 402, a plurality of activated carbon plates 404 are arranged inside the limiting frame 403, an air duct 405 is arranged on one side of the adsorption box 401, an air outlet pipe 406 is arranged at one end of the adsorption box 401 away from the air duct 405, and the end of the air duct 405 away from the adsorption box 401 is connected to the exhaust pipe 109.

[0048] Waste gas pollutants are generated in the electroplating process. If the waste gas pollutants are directly discharged into the outside air, the surrounding environment will be polluted. Acid mist waste gas is generated in the electroplating tank during electroplating. The acid mist waste gas is generally collected by a gas collecting device and pre-treated to remove larger impurities in the acid mist waste gas. The pre-treated acid mist waste gas is then transported to the interior of the treatment tower 101 through the air inlet pipe 108, and an acid-base neutralization reaction is performed with the acid mist waste gas by spraying alkaline liquid. During this process, the acid mist waste gas in the air inlet pipe 108 enters the treatment tower 101, and is then drained through the drainage pipe 104 and moves upward through the sieve holes 103 on the sieve plate 102. By arranging the drainage pipe 104 and the sieve plate 102, the acid mist waste gas collides with the drainage pipe 104 and the sieve plate 102 during the movement, thereby removing larger impurities in the acid mist waste gas.

[0049] By arranging the spray assembly 2 and the sprayer 106 at different heights of the treatment tower 101, the purpose of spraying the alkaline liquid is achieved. In order to improve the reaction effect between the acidic waste gas and the alkaline spray liquid, an elastic net 302 and a filler support plate 105 are respectively arranged below the spray assembly 2 and the sprayer 106, wherein a plurality of filler balls are arranged inside the elastic net 302 and above the filler support plate 105. Due to the porous structure and special shape of the filler balls, the surface area per unit volume can be significantly increased, thereby providing more contact surfaces, increasing the contact area between the acid mist waste gas and the alkaline spray liquid, achieving the purpose of sufficient mixing and reaction between the acid mist waste gas and the alkaline spray liquid, and further improving the purification effect of the waste gas.

[0050] It is worth noting that the elastic net 302 is supported by the electric telescopic rod 305 to prevent the elastic net 302 from being damaged due to excessive deformation under the action of the gravity of the filler balls, thereby increasing the service life of the elastic net 302.

[0051] When in use, the alkaline liquid in the circulating water tank 111 is pumped out by the water pump 112, and the alkaline liquid in the first water supply pipe 113 is transported to the second water supply pipe 115 through the tee 114, and then the alkaline liquid in the second water supply pipe 115 is transported to the installation pipe 201 in the spray assembly 2, and then enters the spray pipe 202 through the water inlet groove on the diverter plate 219 and flows into the branch pipe 203, and then passes through the regulating pipe 204 and the elbow 205 in turn, and finally sprayed onto the filler balls inside the elastic net 302 through the spray head 206. During the process, in order to improve the spraying effect of the spray assembly 2, the motor 216 is started, and the motor 216 drives the rotating cylinder 217, the rotating rod 218, the diverter plate 219 and the spray pipe 202 to rotate together, so that the alkaline spray liquid in the spray pipe 202 enters the spray head 206 through the branch pipe 203, the regulating pipe 204, and the bent pipe 205, so that the spray head 206 can spray the filler balls in the elastic net 302, and at the same time, the impurities on the inner wall of the treatment tower 101 can be flushed to prevent the impurities from adhering to the inner wall and being difficult to clean.

[0052] It is worth mentioning that the cylinder 212 is extended by the controller, and the cylinder 212 pushes the connecting plate 213 and the spray pipe 202 to move downward. During this process, the spray pipe 202 drives the diverter plate 219 and the rotating rod 218 to make the rotating rod 218 move downward along the slide groove on the inner wall of the rotating cylinder 217, thereby adjusting the spraying height of the spray head 206 on the spray pipe 202 to meet the different needs of different sprays and improve the spraying effect.

[0053] Then the acidic waste gas moves upward to the position of the packing balls on the packing support plate 105, and the alkaline liquid in the circulating water tank 111 is pumped out by the water pump 112 and sent to the first water supply pipe 113, and the alkaline liquid in the first water supply pipe 113 is sent to the sprayer 106, and then the sprayer 106 sprays the alkaline liquid onto the packing balls on the packing support plate 105, so that the acidic waste gas can fully react with the alkaline liquid again, and then the reacted gas moves upward through the demister 107 to achieve gas-water separation, and then the waste gas after the first-stage purification is discharged from the treatment tower 101 through the exhaust pipe 109, thereby reducing the corrosiveness of the waste gas.

[0054] In the above process, the alkaline spray liquid reacts with the acidic waste gas and is collected at the bottom of the treatment tower 101 under the action of gravity. Since the alkaline spray liquid takes away the impurities in the acidic waste gas during the reaction, the spray waste liquid at the bottom of the treatment tower 101 is pumped back to the circulating water tank 111 through the sewage pipe 110 and filtered by the filtering mechanism in the circulating water tank 111, thereby realizing the recycling of the waste liquid.

[0055] The exhaust gas after the primary purification is then transported to the adsorption box 401 through the exhaust pipe 109 through the air guide pipe 405, and then the harmful substances in the exhaust gas after the primary purification are adsorbed by the activated carbon plate 404 to further purify the exhaust gas, so that the gas adsorbed by the activated carbon is discharged into the atmosphere through the outlet pipe 406 to achieve secondary purification treatment.

[0056] The purification component 1 and the spray component 2 cooperate to make the alkaline spray liquid and the acid mist waste gas undergo an acid-base neutralization reaction to achieve a primary purification treatment, wherein the acid mist waste gas inside the treatment tower 101 passes through the packing balls in the elastic net 302 and the packing balls on the packing support plate 105 in sequence when moving upward, thereby increasing the contact area between the acid mist waste gas and the alkaline spray liquid, thereby better adsorbing, dissolving, and reacting, and improving the purification effect, and then the waste gas after the primary purification treatment is subjected to a secondary purification treatment through the adsorption component 4 to meet the emission requirements of local emission standards.

[0057] In the above process, it was found that the spray range of the existing spray device cannot be adjusted according to the diameter of the treatment tower 101, which easily causes uneven spraying; due to the uneven exhaust gas entering the treatment tower 101, the exhaust gas and the spray liquid cannot fully react, thereby affecting the purification effect; due to the long-term use of impurities attached to the filler balls of the elastic net 302, the permeability is reduced, and the uneven exhaust gas will aggravate the different degrees of blockage of the filler balls at different positions in the elastic net 302, thereby affecting the purification effect.

[0058] In order to solve the above problems, the device also includes:

[0059] like Fig.10As shown, a sliding ring 207 is fixedly provided on the surface of the adjusting tube 204, an armature ring 208 is provided on the surface of the sliding ring 207, a spring 209 is provided on the end of the armature ring 208 away from the sliding ring 207, an electromagnet 210 is provided on the end of the spring 209 away from the armature ring 208, and the end of the electromagnet 210 away from the spring 209 is fixedly connected to the branch tube 203.

[0060] When in use, the controller increases the current input into the electromagnet 210, thereby increasing the magnetic attraction between the electromagnet 210 and the armature ring 208, and the spring 209 is compressed, so that the armature ring 208 overcomes the elastic force of the spring 209 and drives the sliding ring 207 and the adjusting tube 204 to extend out of the branch tube 203, thereby increasing the extension distance of the sprinkler head 206.

[0061] like Figure 4 As shown, a gas control valve is provided inside the drainage pipe 104, and a gas sensor is provided inside the sieve hole 103. The amount of exhaust gas passing through the sieve hole 103 is detected by the gas sensor, and then the amount of exhaust gas at the sieve hole 103 at different positions of the sieve plate 102 is obtained by comparison and calculation.

[0062] When in use, the motor 216 drives the rotating cylinder 217, the rotating rod 218, the diverter plate 219 and the spray pipe 202 to rotate together, so that the alkaline spray liquid in the spray pipe 202 enters the spray head 206 through the branch pipe 203, the regulating pipe 204 and the bent pipe 205, so that the spray head 206 can rotate and spray. In order to improve the comprehensiveness of the spraying of the spray assembly 2, the spraying positions of the five groups of spray heads 206 are calculated according to the radius of the treatment tower 101, and the extension distances of the five groups of spray heads 206 are controlled to decrease from small to large in sequence, and the extension distances of the five groups of spray heads 206 are reduced in sequence. The distances are equidistantly distributed, so that the spraying range of the five groups of spray heads 206 uniformly covers the cross-sectional area of ​​the treatment tower 101. Specifically, the controller controls the current passed through the electromagnets 210 on the five groups of branch pipes 203 and sets different current values, so that the magnetic attraction between the five groups of electromagnets 210 and the armature ring 208 is different, so that the lengths of the five groups of adjusting tubes 204 extending out of the branch pipes 203 are different, so that the protruding distances of the five groups of spray heads 206 are different, so that the protruding distances of the five groups of spray heads 206 are equidistantly distributed, thereby improving the uniformity of the spraying of the spray assembly 2 and allowing the spray liquid to be evenly coated on the surface of the filler balls.

[0063] In the above process, the alkaline liquid in the second water supply pipe 115 is stirred under the action of the rotation of the diverter plate 219 to avoid uneven mixing of the alkaline liquid resulting in poor acid mist exhaust gas purification effect. At the same time, if there are fine impurities in the alkaline liquid, the fine impurities in the alkaline liquid are crushed by stirring to avoid clogging the spray head 206.

[0064] Since the exhaust gas entering the treatment tower 101 is not uniform, the exhaust gas cannot fully react with the spray liquid, thereby affecting the purification effect; since the packing balls of the elastic net 302 are attached with impurities after long-term use, the permeability is reduced, and the uneven exhaust gas will aggravate the different blockage degrees of the packing balls at different positions in the elastic net 302, thereby affecting the purification effect. The amount of exhaust gas passing through the sieve hole 103 is detected by the gas sensor, and then the amount of exhaust gas at the sieve holes 103 at different positions of the sieve plate 102 is obtained by comparison and calculation, and then it is determined whether the exhaust gas entering the treatment tower 101 is evenly distributed. If the exhaust gas in the treatment tower 101 is unevenly distributed, the shape of the elastic net 302 is adjusted according to the detection situation, and the distribution of the packing balls in the elastic net 302 is changed, thereby changing the reaction time of the exhaust gas in the packing balls in the elastic net 302. If the gas sensor detects that the amount of exhaust gas at the sieve hole 103 is more, the number of packing balls in the elastic net 302 corresponding to the position is more, thereby increasing the reaction time of the exhaust gas in the elastic net 302 at the position, thereby improving the exhaust gas purification effect, specifically:

[0065] If the gas sensor detects and compares that the amount of waste gas from the sieve hole 103 at the middle position of the sieve plate 102 is greater than the amount of waste gas from the sieve hole 103 at the edge position of the sieve plate 102, this indicates that the amount of waste gas in the middle position of the treatment tower 101 is large, while the amount of waste gas near the inner wall of the treatment tower 101 is small, and the waste gas entering the treatment tower 101 is not evenly distributed, then the controller controls the extension distance of the four electric telescopic rods 305 on the fixed plate 303 respectively (see Fig.12 ), from right to left they are denoted as L1, L2, L3 and L4, in order to prevent the middle part of the elastic net 302 from bearing too much weight and causing damage, L3 and L4 are equal to enhance the supporting force, and L1, L2, L3 change linearly and show a downward trend, the inclination of the deformation position of the elastic net 302 can be obtained by calculating the difference between L1 and L3, and the inclination of the deformation position of the elastic net 302 is adjusted according to the difference between the exhaust gas volume of the sieve holes 103 at the middle position of the sieve plate 102 and the exhaust gas volume of the sieve holes 103 at the edge position of the sieve plate 102, the greater the difference between the exhaust gas volume of the sieve holes 103 at the middle position of the sieve plate 102 and the exhaust gas volume of the sieve holes 103 at the edge position of the sieve plate 102, the greater the inclination of the deformation position of the elastic net 302, that is, the greater the difference between L1 and L3.

[0066] At this time, the number of filler balls at the middle position of the elastic net 302 is greater than the number of filler balls at the edge position of the elastic net 302 (see Fig.12), the exhaust gas passing through the middle position of the sieve plate 102 moves upward to the filler balls on the middle position of the elastic net 302, increasing the reaction time of the exhaust gas at this position to the filler balls in the elastic net 302, and at the same time, the controller controls to reduce the current input into the electromagnet 210, thereby reducing the magnetic attraction between the electromagnet 210 and the armature ring 208, so that the armature ring 208 drives the sliding ring 207 and the regulating tube 204 to move away from the electromagnet 210 under the action of the spring 209, thereby reducing the extension distance of the spray head 206, increasing the overlapping area of ​​the spray range of the two spray heads 206, thereby increasing the spray volume in the middle, so that the exhaust gas is fully in contact with and reacts with the alkaline spray liquid, and improving the purification effect.

[0067] When the elastic net 302 is adjusted by the electric telescopic rod 305 to change the distribution of the filling balls in the elastic net 302, the electric telescopic rod 305 cooperates with the elastic net 302 to cause the filling balls to collide with each other, so that impurities attached to the surface of the filling balls fall off, thereby enhancing permeability.

[0068] In order to avoid blockage caused by excessive impurities attached to the surface of the filler balls, the controller controls the four electric telescopic rods 305 on the fixed plate 303 to extend or contract synchronously, and the extension or contraction of the four electric telescopic rods 305 on the four fixed plates 303 is staggered, so that the filler balls in the elastic net 302 are evenly mixed, which can not only make the filler balls collide with each other to make the impurities attached to the surface of the filler balls fall off, but also make the elastic net 302 drive the filler balls to collide with the sieve plate 102, and the electric telescopic rods 305 will also knock on the sieve plate 102, so that the sieve plate 102 and the drainage tube 104 vibrate, so that the impurities on the sieve plate 102 and the drainage tube 104 fall off.

[0069] If the gas sensor detects that the amount of exhaust gas from the sieve hole 103 exceeds the processing capacity of the spray liquid, the exhaust gas cannot be fully purified. At this time, the gas control valve is closed by the controller to seal the sieve plate 102, stop new exhaust gas from entering, and reduce the flow rate of the exhaust gas. At this time, the controller controls the cylinder 212 to extend, and the cylinder 212 pushes the connecting plate 213 and the spray pipe 202 to move downward. During this process, the spray pipe 202 drives the diverter plate 219 and the rotating rod 218 to move the rotating rod 218 downward along the slide groove on the inner wall of the rotating cylinder 217, thereby reducing the spray height of the spray head 206 on the spray pipe 202, reducing the time for the alkaline spray liquid to be sprayed on the filler balls, and allowing the exhaust gas to fully react with the alkaline spray liquid.

[0070] It should be noted that, in this article, relational terms such as first and second, etc. are only used to distinguish one entity or operation from another entity or operation, and do not necessarily require or imply any such actual relationship or order between these entities or operations. Moreover, the terms "include", "comprise" or any other variants thereof are intended to cover non-exclusive inclusion, so that a process, method, article or device including a series of elements includes not only those elements, but also other elements not explicitly listed, or also includes elements inherent to such process, method, article or device.

[0071] Although embodiments of the present invention have been shown and described, it will be appreciated by those skilled in the art that various changes, modifications, substitutions and variations may be made to the embodiments without departing from the principles and spirit of the present invention, and that the scope of the present invention is defined by the appended claims and their equivalents.

Claims

1. An electroplating waste gas purification device, comprising a purification component (1) and an adsorption component (4), wherein the adsorption component (4) is arranged on one side of the purification component (1), and is characterized in that: The purification component (1) is provided with a spray component (2) and an adjustment component (3) inside, and the adjustment component (3) is arranged below the spray component (2); The spray assembly (2) comprises a spray pipe (202), a branch pipe (203) is arranged on the surface of the spray pipe (202), an adjusting pipe (204) is installed at one end of the branch pipe (203) away from the spray pipe (202), a bend pipe (205) is arranged at one end of the adjusting pipe (204) away from the branch pipe (203), and a spray head (206) is arranged at one end of the bend pipe (205) away from the adjusting pipe (204); A sliding ring (207) is fixedly arranged on the surface of the regulating tube (204), an armature ring (208) is arranged on the surface of the sliding ring (207), a spring (209) is arranged on one end of the armature ring (208) away from the sliding ring (207), an electromagnet (210) is arranged on one end of the spring (209) away from the armature ring (208), and one end of the electromagnet (210) away from the spring (209) is fixedly connected to the branch tube (203); The adjustment component (3) comprises a fixing ring (301), an elastic net (302) is arranged below the fixing ring (301), a fixing plate (303) is arranged on the surface of the fixing ring (301), a plurality of fixing seats (304) are arranged on the surface of the fixing plate (303), an electric telescopic rod (305) is arranged at the center position of the surface of the fixing seat (304), a connecting piece (306) is arranged at the output end of the electric telescopic rod (305), and an end of the connecting piece (306) away from the electric telescopic rod (305) is connected to the elastic net (302).

2. The electroplating waste gas purification device according to claim 1, characterized in that: There are multiple fixing plates (303), and the multiple fixing plates (303) are arranged in an annular shape and equidistantly above the fixing ring (301). A fixing groove is provided at the position where the fixing plate (303) is connected to the fixing seat (304), and a plurality of through grooves are provided on the surface of the elastic net (302).

3. The electroplating waste gas purification device according to claim 1, characterized in that: A mounting pipe (201) is arranged above the spray pipe (202), the spray pipe (202) and the mounting pipe (201) are movably connected, a mounting seat (211) is arranged on the surface of the mounting pipe (201), connecting frames (214) are arranged at both ends of the mounting seat (211), a fixing frame (215) is arranged at one end of the connecting frame (214) away from the mounting seat (211), a motor (216) is arranged above the fixing frame (215), a rotating cylinder (217) is arranged at one end of the output shaft of the motor (216), a rotating rod (218) is arranged inside the rotating cylinder (217), a diverter plate (219) is arranged at one end of the rotating rod (218) away from the rotating cylinder (217), and one end of the diverter plate (219) away from the rotating rod (218) is connected to the spray pipe (202).

4. The electroplating waste gas purification device according to claim 3 is characterized in that: One end of the output shaft of the motor (216) passes through and extends into the interior of the mounting tube (201); a rotation groove is provided at a position where the motor (216) is connected to the mounting tube (201); a plurality of water inlet grooves are provided on a surface of the diverter plate (219); and a slide groove is provided at a position where the rotating rod (218) is connected to the rotating cylinder (217).

5. The electroplating waste gas purification device according to claim 3 is characterized in that: A cylinder (212) is arranged below the mounting seat (211); a connecting plate (213) is arranged at one end of the cylinder (212) away from the mounting seat (211); the connecting plate (213) is arranged on the outer surface of the spray pipe (202); and a limiting groove is provided at the position where the connecting plate (213) is connected to the spray pipe (202).

6. The electroplating waste gas purification treatment device according to claim 1, characterized in that: The purification component (1) comprises a treatment tower (101), wherein a sieve plate (102) is arranged inside the treatment tower (101), a plurality of sieve holes (103) are provided on the surface of the sieve plate (102), and a plurality of drainage pipes (104) corresponding to the sieve holes (103) are arranged below the sieve plate (102); A gas control valve is arranged inside the drainage tube (104), and a gas sensor is arranged inside the sieve hole (103).

7. The electroplating waste gas purification device according to claim 6, characterized in that: An air inlet pipe (108) is arranged on one side of the treatment tower (101), an exhaust pipe (109) is arranged at one end of the treatment tower (101) away from the air inlet pipe (108), a circulating water tank (111) is arranged on one side of the treatment tower (101), a sewage pipe (110) is arranged at one end of the circulating water tank (111) close to the treatment tower (101), a water pump (112) is arranged above the circulating water tank (111), a first water supply pipe (113) is arranged at one end of the water pump (112) away from the circulating water tank (111), a sprayer (106) is arranged at one end of the first water supply pipe (113) away from the water pump (112), the sprayer (106) is arranged inside the treatment tower (101), a filler support plate (105) is arranged below the sprayer (106), and a demister (107) is arranged above the sprayer (106).

8. The electroplating waste gas purification device according to claim 7, characterized in that: A tee (114) is provided at a position of the first water supply pipe (113) close to the water pump (112); a second water supply pipe (115) is provided at one end of the tee (114) away from the first water supply pipe (113); one end of the second water supply pipe (115) passes through and extends to the interior of the installation pipe (201); and regulating valves are provided on both the first water supply pipe (113) and the second water supply pipe (115).

9. The electroplating waste gas purification treatment device according to claim 1, characterized in that: The adsorption assembly (4) comprises an adsorption box (401), a protective plate (402) is arranged inside the adsorption box (401), a limiting frame (403) is arranged on the surface of the protective plate (402), a plurality of activated carbon plates (404) are arranged inside the limiting frame (403), an air guide pipe (405) is arranged on one side of the adsorption box (401), an air outlet pipe (406) is arranged at one end of the adsorption box (401) away from the air guide pipe (405), and the end of the air guide pipe (405) away from the adsorption box (401) is connected to an exhaust pipe (109).

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