Rotational flow self-cleaning device for demister of desulfurizing tower and construction method of rotational flow self-cleaning device

Abstract

The invention relates to the technical field of air pollution treatment, in particular to a rotational flow self-cleaning device of a demister of a desulfurizing tower and a construction method of the rotational flow self-cleaning device. The cleaning mechanism comprises a slurry precipitation unit, a desulfurization tower main body and a descaling assembly, the descaling assembly comprises a flow guide part, an extension disc, a double-helix channel, a bevel gear ring, a vortex part, a transmission part and a bevel gear, the flow guide part is fixedly connected with the desulfurization tower main body, the extension disc is rotatably connected with the desulfurization tower main body, and the double-helix channel is fixedly connected with the extension disc and located in the extension disc; the transmission part is fixedly connected with the vortex part, and the bevel gear is meshed with the bevel gear ring, so that the spiral channels are driven to rotate by utilizing gas kinetic energy, an additional power source is not needed, the centrifugal force of the spiral channels is effectively improved, fine particles and mist are separated more thoroughly, and the desulfurization efficiency is improved. And the cleaning effect on dirt on the inner wall of the spiral channel is improved.

Description

TECHNICAL FIELD

[0001] The present application relates to the technical field of air pollution control, and particularly relates to a cyclone self-cleaning device of a desulfurization tower demister and a construction method thereof. BACKGROUND

[0002] The absorption tower is a device for realizing absorption operation, and generally adopts countercurrent operation. The absorbent flows from top to bottom, and is in contact with the gas flowing from bottom to top. The liquid in which the absorbate is absorbed is discharged from the bottom, and the purified gas is discharged from the top. The desulfurization tower is an important sub-type of the absorption tower, and is specially used for removing sulfides in industrial flue gas. It is a core device for controlling acid rain and sulfur dioxide pollution in air pollution control. The working principle is that the desulfurization absorbent is fully contacted with the sulfur-containing flue gas to convert the sulfides into solid or liquid substances, so as to realize flue gas purification. In the running process of the desulfurization tower, a large amount of sulfur-containing slurry mist and fine particles are carried by the flue gas after the desulfurization reaction, and need to be separated and treated by the demister. However, in the prior art, the desulfurization tower and the demister in the tower need to be regularly cleaned of the deposits and the attachments on the demister. Each cleaning needs to shut down the device, and a large amount of manpower and material resources are consumed.

[0003] To solve the above problems, the prior art patent (CN220405087U) discloses a cyclone self-cleaning device of an absorption tower demister. The absorption tower demister with the self-cleaning function comprises a slurry sediment tank and an absorption tower body. A shunt pipe is arranged in the absorption tower body. A sprayer is arranged at the bottom of the shunt pipe. The absorption tower body is connected with a demister body above the sprayer. A plurality of double helical channels are arranged in the demister body. A filter screen cylinder is arranged in the slurry sediment tank. The device can make the airflow containing water mist flow in the helical channel and tightly adhere to the inner wall of the helical channel, and then guide the airflow downward, so as to achieve demisting. The downward flowing water can self-clean the inner wall, so that the cleaning frequency can be reduced. The filter screen cylinder at the bottom can ensure the cleanliness of the water pumped by the water pump, and facilitates sewage discharge and reduces the internal cleaning frequency.

[0004] However, in the above prior art, the helical channel is fixed and only relies on the airflow self-cyclone, which results in insufficient centrifugal force, so that the fine particles in the mist are not completely separated, and dirt is easily accumulated on the inner wall of the channel. SUMMARY

[0005] The present application aims to provide a cyclone self-cleaning device of a desulfurization tower demister and a construction method thereof, which solves the technical problem that the helical channel is fixed and only relies on the airflow self-cyclone in the prior art, which results in insufficient centrifugal force, so that the fine particles in the mist are not completely separated, and dirt is easily accumulated on the inner wall of the channel.

[0006] In order to achieve the above object, the cyclone self-cleaning device of the desulfurizing tower demister provided by the application comprises a supporting seat and a cleaning mechanism; the cleaning mechanism comprises a mud sedimentation unit, a desulfurizing tower body and a descaling assembly; the mud sedimentation unit is fixedly connected with the supporting seat and located above the supporting seat; the desulfurizing tower body is fixedly connected with the mud sedimentation unit and located above the mud sedimentation unit; the descaling assembly comprises a flow guide piece, an extension disc, a double-helix channel, a bevel gear ring, a vortex piece, a transmission piece and a bevel gear; the flow guide piece is fixedly connected with the desulfurizing tower body and located in the desulfurizing tower body; the extension disc is rotatably connected with the desulfurizing tower body and located above the flow guide piece; the double-helix channel is fixedly connected with the extension disc and located in the extension disc; the bevel gear ring is fixedly connected with the double-helix channel and located on the outer side of the double-helix channel; the vortex piece is fixedly connected with the desulfurizing tower body and located on the outer side of the desulfurizing tower body; the transmission piece is fixedly connected with the vortex piece and penetrates through the desulfurizing tower body; and the bevel gear is engaged with the bevel gear ring and located on the outer side of the transmission piece.

[0007] The flow guide piece comprises a wave flow guide channel, a spraying disc and a water inlet pipe; the wave flow guide channel is fixedly connected with the desulfurizing tower body and located in the desulfurizing tower body; the spraying disc is fixedly connected with the wave flow guide channel and located above the wave flow guide channel; and the water inlet pipe is fixedly connected with the spraying disc and located on the outer side of the spraying disc.

[0008] The vortex piece comprises an air inlet pipe, a contraction pipe and a flow-around inclined plate; the air inlet pipe is fixedly connected with the desulfurizing tower body and located on the outer side of the desulfurizing tower body; the contraction pipe is fixedly connected with the air inlet pipe and located on the outer side of the air inlet pipe; and the flow-around inclined plate is fixedly connected with the contraction pipe and located in the contraction pipe.

[0009] The transmission piece comprises a fixing frame and a connecting sleeve; the fixing frame is fixedly connected with the air inlet pipe and located in the air inlet pipe; and the connecting sleeve is rotatably connected with the fixing frame and located in the fixing frame.

[0010] The transmission piece further comprises a connecting rod, a vortex fan blade and a driving rod; the connecting rod is fixedly connected with the connecting sleeve and penetrates through the connecting sleeve; the vortex fan blade is fixedly connected with one end of the connecting rod and located on the outer side of the connecting rod; and the driving rod is fixedly connected with the other end of the connecting rod and penetrates through the desulfurizing tower body.

[0011] The transmission part further comprises a first bearing and a sealing sleeve, the first bearing has an inner shaft and an outer shaft, the inner shaft of the first bearing is fixedly connected with the driving rod, the outer shaft of the first bearing is fixedly connected with the desulfurization tower body, and the sealing sleeve is fixedly connected with the desulfurization tower body and located on the outer side of the driving rod.

[0012] The transmission part further comprises a driving wheel, a belt, a driven wheel and a linkage rod, the driving wheel is fixedly connected with the driving rod and located on the side of the driving rod away from the connecting rod, one end of the belt is sleeved on the outer side of the driving wheel, the other end of the belt is sleeved on the outer side of the driven wheel, the driven wheel is fixedly connected with the linkage rod and located above the driving wheel, and the linkage rod is fixedly connected with the bevel gear and located on the outer side of the driven wheel.

[0013] The transmission part further comprises a second bearing and a protective shell, the second bearing has an inner shaft and an outer shaft, the inner shaft of the second bearing is fixedly connected with the linkage rod, the outer shaft of the second bearing is fixedly connected with the desulfurization tower body, and the protective shell is fixedly connected with the desulfurization tower body and located on the outer side of the belt.

[0014] The descaling assembly further comprises a flow guide hopper, an air outlet pipe and a supplementary air fan, the flow guide hopper is fixedly connected with the double-helix channel and located below the double-helix channel, the air outlet pipe is fixedly connected with the desulfurization tower body and located above the desulfurization tower body, and the supplementary air fan is fixedly connected with the air outlet pipe and located above the air outlet pipe.

[0015] The rotational flow self-cleaning device of the desulfurization tower mist eliminator further comprises a booster assembly, the booster assembly comprises a support frame, an air extraction fan and a booster machine, the support frame is fixedly connected with the desulfurization tower body and located on the outer side of the air outlet pipe, the air extraction fan is fixedly connected with the support frame and located above the support frame, and the booster machine is fixedly connected with the output end of the air extraction fan and located on the outer side of the air extraction fan.

[0016] The booster assembly further comprises an air extraction pipe and a flow guide plate, the air extraction pipe is fixedly connected with the input end of the air extraction fan and located in the air outlet pipe, and the flow guide plate is fixedly connected with the air outlet pipe and located on the outer side of the air extraction pipe.

[0017] The booster assembly further comprises an air pressure pipe and a one-way valve, the air pressure pipe is fixedly connected with the water inlet pipe and located on the outer side of the booster machine, and the one-way valve is arranged on the outer side of the water inlet pipe.

[0018] The application further provides a construction method, which comprises the following steps.

[0019] S1. Open the water pipe valve to make the water inlet pipe supply water to the spray disc, the spray disc uniformly sprays the wave guide channel, and the inner wall of the wave guide channel forms a uniform water film; start the air supplement fan and the air extraction fan to form a preliminary air flow circulation in the desulfurizing tower body, and start the air booster at the same time, the air pressure pipe pressurizes the water inlet pipe to enhance the spraying intensity of the spray disc;

[0020] S2. After the exhaust gas is accelerated by the flow guide inclined plate in the contraction pipe, the exhaust gas enters the desulfurizing tower body, and the exhaust gas flows upward in the desulfurizing tower body, and when passing through the wave guide channel, the exhaust gas is fully contacted with the water sprayed by the spray disc to form mist containing fine particles, and at the same time, the vortex fan blades cooperate with the connecting rod, the driving rod, the driving wheel, the belt and the driven wheel to transmit power, so that the bevel gear drives the bevel gear ring to rotate, and then drives the double helical channel to rotate with the extension disc;

[0021] S3. After the guide hopper guides the mist into the double helical channel, under the action of the centrifugal force generated by the rotating double helical channel, the mist water containing fine particles adheres to the inner wall of the channel, realizing the separation of fine particles and mist, and the separated mist water falls along the inner wall of the double helical channel and flows into the mud sedimentation unit, and the purified gas continues to flow upward, is discharged through the air outlet pipe, and a small part of the purified gas is extracted by the air extraction fan through the guide plate, so as to form a cycle with air flow pressurization.

[0022] The cyclone self-cleaning device of the desulfurizing tower demister provided by the application, when in use, the mud sedimentation unit is arranged above the support seat, the desulfurizing tower body is arranged above the mud sedimentation unit, the exhaust gas is accelerated by the vortex member and then enters the desulfurizing tower body, the guide member sprays water on the exhaust gas, and at the same time, the exhaust gas drives the transmission member to rotate, the transmission member drives the bevel gear to rotate, the bevel gear is meshed with the bevel gear ring, so that the bevel gear drives the bevel gear ring to rotate, the bevel gear ring drives the double helical channel to rotate, the double helical channel rotates in the desulfurizing tower body by relying on the extension disc, so as to improve the centrifugal force of the mist in the double helical channel, the mist enters the double helical channel from below, so that the mist spirals upward, and the mist water containing fine particles adheres to the inner wall due to the rotation of the double helical channel and the centrifugal force, so that the fine particles are more completely separated from the mist, and the dirt removal rate of the inner wall of the double helical channel is effectively improved, so that the problems of incomplete separation of fine particles in the mist and easy accumulation of dirt on the inner wall of the channel due to the fixed double helical channel and insufficient centrifugal force are solved. BRIEF DESCRIPTION OF DRAWINGS

[0023] In order to make the technical solutions of the embodiments of the present application or the prior art clearer, the accompanying drawings needed in the embodiments or prior art description will be briefly introduced. Obviously, the accompanying drawings in the following description only need to be some embodiments of the present application, and other drawings can be obtained by those skilled in the art without any creative effort.

[0024] Figure 1 is a structural schematic view of the cyclone self-cleaning device of the desulfurizing tower mist eliminator of the present application.

[0025] Figure 2 is a perspective view of the cyclone self-cleaning device of the desulfurizing tower mist eliminator of the present application.

[0026] Figure 3 is a structural sectional view of the cyclone self-cleaning device of the desulfurizing tower mist eliminator of the present application. Figure 2 is an enlarged view of the partial structure at A of the desulfurizing tower mist eliminator of the present application.

[0027] Figure 4 is a structural sectional view of the cyclone self-cleaning device of the desulfurizing tower mist eliminator of the present application.

[0028] Figure 5 is a top view of the partial structure of the cyclone self-cleaning device of the desulfurizing tower mist eliminator of the present application.

[0029] Figure 6 is a structural schematic view of the transmission member of the present application.

[0030] Figure 7 is an enlarged view of the partial structure at B of the desulfurizing tower mist eliminator of the present application. Figure 6

[0031] 101-supporting seat, 102-mud sedimentation unit, 103-desulfurizing tower main body, 104-air inlet pipe, 105-converging pipe, 106-flowing inclined plate, 107-wavy flow guide channel, 108-spraying disc, 109-water inlet pipe, 110-extended disc, 111-double helical channel, 112-bevel gear ring, 113-flow guide hopper, 114-air outlet pipe, 115-air supplement fan, 116-fixing frame, 117-connecting sleeve, 118-connecting rod, 119-vortex fan blade, 120-driving rod, 121-first bearing, 122-sealing sleeve, 123-driving wheel, 124-belt, 125-driven wheel, 126-linkage rod, 127-second bearing, 128-protection shell, 129-bevel gear, 201-supporting frame, 202-exhaust fan, 203-boosting machine, 204-exhaust pipe, 205-flow guide plate, 206-air pressure pipe, 207-check valve. DETAILED DESCRIPTION

[0032] ​The embodiments of the present invention are described in detail below. Examples of the embodiments are shown in the accompanying drawings. The embodiments described below with reference to the accompanying drawings are exemplary and intended to explain the present invention, but should not be construed as limiting the present invention.

[0033] Please see Figures 1 to 7 ,in Figure 1 This is a schematic diagram of the cyclone self-cleaning device of the desulfurization tower demister of the present invention. Figure 2 This is a perspective view of the cyclone self-cleaning device of the desulfurization tower demister of the present invention. Figure 3 This is the invention Figure 2 Enlarged view of the local structure at point A. Figure 4 This is a structural cross-sectional view of the cyclone self-cleaning device of the desulfurization tower demister of the present invention. Figure 5 This is a partial top view of the cyclone self-cleaning device of the desulfurization tower demister of the present invention. Figure 6 This is a schematic diagram of the transmission component of the present invention. Figure 7 This is the invention Figure 6 Enlarged view of the local structure at point B.

[0034] This invention provides a cyclone self-cleaning device for a desulfurization tower demister, comprising a support base 101 and a cleaning mechanism. The cleaning mechanism includes a sludge sedimentation unit 102, a desulfurization tower body 103, and a descaling component. The descaling component includes a flow guide, an extension plate 110, a double helical channel 111, a bevel gear ring 112, a vortex component, a transmission component, a bevel gear 129, a flow guide bucket 113, an air outlet pipe 114, and a supplementary fan 115. The flow guide includes a wave flow guide channel 107, a spray plate 108, and a water inlet pipe 109. The vortex component includes an air inlet pipe 109. 4. The converging tube 105 and the flow-around inclined plate 106, the transmission components include a fixed frame 116, a connecting sleeve 117, a connecting rod 118, a vortex fan blade 119, a drive rod 120, a first bearing 121, a sealing sleeve 122, a drive wheel 123, a belt 124, a driven wheel 125, a linkage rod 126, a second bearing 127, and a protective shell 128. The aforementioned solution solves the problem that the spiral channel is fixed and relies solely on the airflow's own vortex, resulting in insufficient centrifugal force, incomplete separation of fine particles in the mist, and easy accumulation of dirt on the inner wall of the channel.

[0035] For this specific embodiment, the cleaning mechanism comprises a sludge sedimentation unit 102, a desulfurization tower body 103 and a descaling assembly. The sludge sedimentation unit 102 is fixedly connected with the support and located above the support. The desulfurization tower body 103 is fixedly connected with the sludge sedimentation unit 102 and located above the sludge sedimentation unit 102. The descaling assembly comprises a flow guide, an extension disc 110, a double helix channel 111, a bevel gear ring 112, a vortex member, a transmission member and a bevel gear 129. The flow guide is fixedly connected with the desulfurization tower body 103 and located inside the desulfurization tower body 103. The extension disc 110 is rotatably connected with the desulfurization tower body 103 and located above the flow guide. The double helix channel 111 is fixedly connected with the extension disc 110 and located inside the extension disc 110. The bevel gear ring 112 is fixedly connected with the double helix channel 111 and located outside the double helix channel 111. The vortex member is fixedly connected with the desulfurization tower body 103 and located outside the desulfurization tower body 103. The transmission member is fixedly connected with the vortex member and penetrates through the desulfurization tower body 103. The bevel gear 129 is engaged with the bevel gear ring 112 and located outside the transmission member. The sludge sedimentation unit 102 has been described in the prior art CN220405087U and is used for filtering and discharging the downward flowing sewage, so it will not be described here.The slurry precipitation unit 102 is arranged above the support base 101, the desulfurization tower body 103 is arranged above the slurry precipitation unit 102, the slurry precipitation unit 102 is arranged above the support base 101, the desulfurization tower body 103 is arranged above the slurry precipitation unit 102, the exhaust gas enters the desulfurization tower body 103 after being accelerated by the vortex member, the guide member sprays water on the exhaust gas, and the exhaust gas drives the transmission member to rotate, the transmission member drives the bevel gear 129 to rotate, the bevel gear 129 drives the bevel gear ring 112 to rotate through the meshing of the bevel gear 129 and the bevel gear ring 112, the bevel gear ring 112 drives the double helix channel 111 to rotate, and the double helix channel 111 rotates in the desulfurization tower body 103 by relying on the extension disc 110, thereby improving the centrifugal force of the mist in the double helix channel 111, the mist enters the double helix channel 111 from below, and the mist spirals upward, so that the mist water containing fine particles is close to the inner wall due to the rotation and centrifugal force of the double helix channel 111, so that the fine particles are more completely separated from the mist, and the dirt removal rate of the inner wall of the double helix channel 111 can be effectively improved, and the problems of incomplete separation of fine particles in the mist and easy accumulation of dirt on the inner wall of the channel due to the fixed spiral channel and insufficient centrifugal force can be effectively solved.

[0036] The guide flow piece comprises a wave guide flow channel 107, a spray disc 108 and a water inlet pipe 109, the wave guide flow channel 107 is fixedly connected with the desulfurization tower body 103 and located in the desulfurization tower body 103, the spray disc 108 is fixedly connected with the wave guide flow channel 107 and located above the wave guide flow channel 107, the water inlet pipe 109 is fixedly connected with the spray disc 108 and located outside the spray disc 108, after the exhaust gas enters the desulfurization tower body 103, the exhaust gas moves upward through the wave guide flow channel 107, the spray disc 108 can increase the contact time and area of the exhaust gas and water, thereby improving the processing efficiency, and the water pump is arranged below the water inlet pipe 109 for water supply of the spray disc 108.

[0037] Secondly, the vortex piece comprises an air inlet pipe 104, a contraction pipe 105 and a flow around inclined plate 106, the air inlet pipe 104 is fixedly connected with the desulfurization tower body 103 and located outside the desulfurization tower body 103, the contraction pipe 105 is fixedly connected with the air inlet pipe 104 and located outside the air inlet pipe 104, the flow around inclined plate 106 is fixedly connected with the contraction pipe 105 and located in the contraction pipe 105, a connecting flange is arranged outside the contraction pipe 105 for connection of the exhaust equipment, the exhaust gas enters the contraction pipe 105, the exhaust gas flowing through the air inlet pipe 104 is accelerated by the contraction of the flow around inclined plate 106 and the contraction pipe 105, thereby improving the flow rate of the exhaust gas.

[0038] Meanwhile, the transmission piece comprises a fixed frame 116 and a connecting sleeve 117, the fixed frame 116 is fixedly connected with the air inlet pipe 104 and located in the air inlet pipe 104, the connecting sleeve 117 is rotationally connected with the fixed frame 116 and located in the fixed frame 116, the fixed frame 116 is arranged in the air inlet pipe 104, and the fixed frame 116 limits the connecting sleeve 117.

[0039] In addition, the transmission piece further comprises a connecting rod 118, a vortex fan blade 119 and a driving rod 120, the connecting rod 118 is fixedly connected with the connecting sleeve 117 and penetrates through the connecting sleeve 117, the vortex fan blade 119 is fixedly connected with one end of the connecting rod 118 and located outside the connecting rod 118, and the driving rod 120 is fixedly connected with the other end of the connecting rod 118 and penetrates through the desulfurization tower body 103, when the exhaust gas flowing through the air inlet pipe 104 is accelerated, the vortex fan blade 119 is driven to rotate, the vortex fan blade 119 drives the driving rod 120 to rotate through the connecting rod 118, and the connecting sleeve 117 is rotated in the fixed frame 116.

[0040] The transmission member further comprises a first bearing 121 and a sealing sleeve 122, the first bearing 121 has an inner shaft and an outer shaft, the inner shaft of the first bearing 121 is fixedly connected with the driving rod 120, the outer shaft of the first bearing 121 is fixedly connected with the desulfurization tower body 103, the sealing sleeve 122 is fixedly connected with the desulfurization tower body 103 and located outside the driving rod 120, the inner shaft of the first bearing 121 is driven to rotate when the driving rod 120 rotates, the outer shaft of the first bearing 121 remains stationary with the desulfurization tower body 103, and the sealing sleeve 122 prevents exhaust gas from leaking from the position where the driving rod 120 penetrates the desulfurization tower body 103, thereby improving the sealing performance of the desulfurization tower body 103.

[0041] Secondly, the transmission member further comprises a driving wheel 123, a belt 124, a driven wheel 125 and a linkage rod 126, the driving wheel 123 is fixedly connected with the driving rod 120 and located on the side of the driving rod 120 away from the connecting rod 118, one end of the belt 124 is sleeved outside the driving wheel 123, the other end of the belt 124 is sleeved outside the driven wheel 125, the driven wheel 125 is fixedly connected with the linkage rod 126 and located above the driving wheel 123, the linkage rod 126 is fixedly connected with the bevel gear 129 and located outside the driven wheel 125, the driving rod 120 drives the driving wheel 123 to rotate, the driven wheel 125 is driven to rotate synchronously with the driving wheel 123 through the belt 124, and the linkage rod 126 is driven to rotate by the driven wheel 125.

[0042] Thirdly, the transmission member further comprises a second bearing 127 and a protective shell 128, the second bearing 127 has an inner shaft and an outer shaft, the inner shaft of the second bearing 127 is fixedly connected with the linkage rod 126, the outer shaft of the second bearing 127 is fixedly connected with the desulfurization tower body 103, the protective shell 128 is fixedly connected with the desulfurization tower body 103 and located outside the belt 124, the inner shaft of the second bearing 127 is driven to rotate by the linkage rod 126, the outer shaft of the second bearing 127 remains stationary with the desulfurization tower body 103, thereby driving the bevel gear 129 to rotate through the linkage rod 126, and the protective shell 128 is provided with heat dissipation holes and used for protecting the belt 124 and driving equipment.

[0043] In addition, the descaling assembly further comprises a flow guide hopper 113, an air outlet pipe 114 and a make-up fan 115, the flow guide hopper 113 is fixedly connected with the double helix channel 111 and located below the double helix channel 111, the air outlet pipe 114 is fixedly connected with the desulfurizing tower body 103 and located above the desulfurizing tower body 103, the make-up fan 115 is fixedly connected with the air outlet pipe 114 and located above the air outlet pipe 114, the flow guide hopper 113 converges the mist entering the double helix channel 111, the air outlet pipe 114 is used for discharging the gas after purification, and the make-up fan 115 is used for assisting to improve the flow of the airflow inside the desulfurizing tower body 103.

[0044] Secondly, the booster assembly comprises a support frame 201, an air extraction fan 202 and a booster 203, the support frame 201 is fixedly connected with the desulfurizing tower body 103 and located outside the air outlet pipe 114, the air extraction fan 202 is fixedly connected with the support frame 201 and located above the support frame 201, and the booster 203 is fixedly connected with the output end of the air extraction fan 202 and located outside the air extraction fan 202, and the air extraction fan 202 and the booster 203 are arranged above the support frame 201.

[0045] Thirdly, the booster assembly further comprises an air extraction pipe 204 and a flow guide plate 205, the air extraction pipe 204 is fixedly connected with the input end of the air extraction fan 202 and located inside the air outlet pipe 114, and the flow guide plate 205 is fixedly connected with the air outlet pipe 114 and located outside the air extraction pipe 204, the flow guide plate 205 divides the discharged gas for discharge, and the air extraction fan 202 inhales the small part of the divided gas through the flow guide plate 205.

[0046] In addition, the booster assembly further comprises an air pressure pipe 206 and a one-way valve 207, the air pressure pipe 206 is fixedly connected with the water inlet pipe 109 and located outside the booster 203, and the one-way valve 207 is arranged outside the water inlet pipe 109, the extracted gas enters the air pressure pipe 206 after being pressurized by the booster 203, the air pressure pipe 206 extrudes the pressurized gas to the water inlet pipe 109, and the one-way valve 207 prevents the backflow of the pressurized water, thereby enhancing the spraying strength of the spraying disc 108.

[0047] The cyclone self-cleaning device of the desulfurizing tower mist eliminator uses the mud sedimentation unit 102, the desulfurizing tower body 103 and the descaling assembly, and when in use, the exhaust gas discharge device is connected with the convergent pipe 105 through the connecting flange, the exhaust gas is discharged into the convergent pipe 105, the flow around the inclined plate 106 cooperates with the convergence of the convergent pipe 105, so that the exhaust gas flowing through the inlet pipe 104 is accelerated, and the accelerated exhaust gas drives the vortex fan blade 119 to rotate when flowing through the inlet pipe 104, the exhaust gas moves upward through the wave flow guide channel 107, and the exhaust gas fully contacts with the water sprayed by the spray disc 108 when passing through the wave flow guide channel 107, forming mist containing fine particles, the mist enters the double helical channel 111, and at the same time, the vortex fan blade 119 drives the driving rod 120 to rotate through the connecting rod 118, the driving rod 120 drives the driving wheel 123 to rotate, the belt 124 drives the driven wheel 125 to rotate synchronously with the driving wheel 123, the driven wheel 125 drives the linkage rod 126 to rotate, the linkage rod 126 drives the bevel gear 129 to rotate, the bevel gear 129 drives the bevel gear ring 112 to rotate through the meshing of the bevel gear 129 and the bevel gear ring 112, the bevel gear ring 112 drives the double helical channel 111 to rotate, the double helical channel 111 rotates in the desulfurizing tower body 103 relying on the extension disc 110, thereby enhancing the centrifugal force of the mist in the double helical channel 111, the mist carrying water enters from below the double helical channel 111, and is close to the inner wall due to the rotation of the double helical channel 111 and the centrifugal force, so that the fine particles are more completely separated from the mist, and the dirt removal rate of the inner wall of the double helical channel 111 can be effectively improved, the water flow drives the fine particles to fall into the mud sedimentation unit 102, the gas after mist removal is discharged to the outside through the outlet pipe 114, the guide plate 205 divides the discharged gas, the air extractor 202 inhales a small part of the divided gas through the guide plate 205, the air pressure pipe 206 extrudes the pressurized gas to the water inlet pipe 109, and the one-way valve 207 avoids the backflow of the pressurized water, so that the intensity of the water sprayed by the spray disc 108 can be effectively enhanced, the particles in the mist are more completely contacted with the water, the spiral channel is driven to rotate by the kinetic energy of the gas, no additional power source is needed, the centrifugal force of the spiral channel is effectively improved, the separation of the fine particles from the mist is more complete, and the cleaning effect of the dirt on the inner wall of the spiral channel is improved.

[0048] The above only discloses a preferred embodiment of the present application, and of course cannot limit the scope of the present application, and those skilled in the art can understand that all or part of the above-mentioned embodiments can be implemented, and equivalent changes made according to the claims of the present application still belong to the scope of the present application.

Claims

1. A cyclone self-cleaning device of a desulfurizing tower demister, comprising a support seat, characterized in that, it further comprises a cleaning mechanism; the cleaning mechanism comprises a mud sedimentation unit, a desulfurizing tower body and a descaling assembly, the mud sedimentation unit is fixedly connected with the support seat and located above the support seat, the desulfurizing tower body is fixedly connected with the mud sedimentation unit and located above the mud sedimentation unit, the descaling assembly comprises a flow guide piece, an extension disc, a double helix channel, a bevel gear ring, a vortex piece, a transmission piece and a bevel gear, the flow guide piece is fixedly connected with the desulfurizing tower body and located in the desulfurizing tower body, the extension disc is rotatably connected with the desulfurizing tower body and located above the flow guide piece, the double helix channel is fixedly connected with the extension disc and located in the extension disc, the bevel gear ring is fixedly connected with the double helix channel and located outside the double helix channel, the vortex piece is fixedly connected with the desulfurizing tower body and located outside the desulfurizing tower body, the transmission piece is fixedly connected with the vortex piece and penetrates through the desulfurizing tower body, and the bevel gear is engaged with the bevel gear ring and located outside the transmission piece.

2. The cyclone self-cleaning device of the desulfurizing tower demister according to claim 1, characterized in that, the flow guide piece comprises a wave flow guide channel, a spraying disc and a water inlet pipe, the wave flow guide channel is fixedly connected with the desulfurizing tower body and located in the desulfurizing tower body, the spraying disc is fixedly connected with the wave flow guide channel and located above the wave flow guide channel, and the water inlet pipe is fixedly connected with the spraying disc and located outside the spraying disc.

3. The cyclone self-cleaning device of the desulfurizing tower demister according to claim 2, characterized in that, the vortex piece comprises an air inlet pipe, a contraction pipe and a flow-around inclined plate, the air inlet pipe is fixedly connected with the desulfurizing tower body and located outside the desulfurizing tower body, the contraction pipe is fixedly connected with the air inlet pipe and located outside the air inlet pipe, and the flow-around inclined plate is fixedly connected with the contraction pipe and located in the contraction pipe.

4. The cyclone self-cleaning device of the desulfurizing tower demister according to claim 3, characterized in that, the transmission piece comprises a fixing frame and a connecting sleeve, the fixing frame is fixedly connected with the air inlet pipe and located in the air inlet pipe, and the connecting sleeve is rotatably connected with the fixing frame and located in the fixing frame.

5. The cyclone self-cleaning device of the desulfurizing tower demister according to claim 4, characterized in that, the transmission piece further comprises a connecting rod, a vortex fan blade and a driving rod, the connecting rod is fixedly connected with the connecting sleeve and penetrates through the connecting sleeve, the vortex fan blade is fixedly connected with one end of the connecting rod and located outside the connecting rod, and the driving rod is fixedly connected with the other end of the connecting rod and penetrates through the desulfurizing tower body.

6. The cyclone self-cleaning device of the desulfurizing tower demister according to claim 5, characterized in that, The transmission member further comprises a first bearing and a sealing sleeve, the first bearing has an inner shaft and an outer shaft, the inner shaft of the first bearing is fixedly connected with the driving rod, the outer shaft of the first bearing is fixedly connected with the desulfurization tower body, and the sealing sleeve is fixedly connected with the desulfurization tower body and located outside the driving rod.

7. The vortex self-cleaning device of the desulfurization tower demister according to claim 6, wherein, The transmission member further comprises a driving wheel, a belt, a driven wheel and a linkage rod, the driving wheel is fixedly connected with the driving rod and located on the side of the driving rod away from the connecting rod, one end of the belt is sleeved outside the driving wheel, the other end of the belt is sleeved outside the driven wheel, the driven wheel is fixedly connected with the linkage rod and located above the driving wheel, and the linkage rod is fixedly connected with the bevel gear and located outside the driven wheel. The transmission member further comprises a second bearing and a protective shell, the second bearing has an inner shaft and an outer shaft, the inner shaft of the second bearing is fixedly connected with the linkage rod, the outer shaft of the second bearing is fixedly connected with the desulfurization tower body, and the protective shell is fixedly connected with the desulfurization tower body and located outside the belt.

8. The vortex self-cleaning device of the desulfurization tower demister according to claim 7, wherein, The descaling assembly further comprises a flow guide hopper, an air outlet pipe and a supplementary fan, the flow guide hopper is fixedly connected with the double-helix channel and located below the double-helix channel, the air outlet pipe is fixedly connected with the desulfurization tower body and located above the desulfurization tower body, and the supplementary fan is fixedly connected with the air outlet pipe and located above the air outlet pipe.

9. The vortex self-cleaning device of the desulfurization tower demister according to claim 8, wherein, The vortex self-cleaning device of the desulfurization tower demister further comprises a booster assembly, the booster assembly comprises a support frame, an air extraction fan and a booster, the support frame is fixedly connected with the desulfurization tower body and located outside the air outlet pipe, the air extraction fan is fixedly connected with the support frame and located above the support frame, and the booster is fixedly connected with the output end of the air extraction fan and located outside the air extraction fan. The booster assembly further comprises an air extraction pipe and a flow guide plate, the air extraction pipe is fixedly connected with the input end of the air extraction fan and located inside the air outlet pipe, and the flow guide plate is fixedly connected with the air outlet pipe and located outside the air extraction pipe. The booster assembly further comprises an air pressure pipe and a one-way valve, the air pressure pipe is fixedly connected with the water inlet pipe and located outside the booster, and the one-way valve is arranged outside the water inlet pipe.

10. A swirl self-cleaning construction method of a desulfurization tower mist eliminator, characterized by, The vortex self-cleaning device of the desulfurization tower demister according to any one of claims 1-9; S1. Open the water pipe valve to make the water inlet pipe supply water to the spray disc, the spray disc uniformly sprays the wave guide channel, and the inner wall of the wave guide channel forms a uniform water film; start the air supplement fan and the air extraction fan to form a preliminary air flow circulation in the desulfurization tower body, and start the supercharger, the air pressure pipe pressurizes the water inlet pipe to enhance the spraying intensity of the spray disc; S2. After the exhaust gas is accelerated by the flow guide inclined plate in the contraction pipe, it enters the desulfurization tower body, and the exhaust gas flows upward in the desulfurization tower body, fully contacts with the water sprayed by the spray disc when passing through the wave guide channel, forms mist containing fine particles, and at the same time, the vortex fan blades cooperate with the connecting rod, driving rod, driving wheel, belt and driven wheel to transmit power, so that the bevel gear drives the bevel gear ring to rotate, and in turn drives the double helix channel to rotate with the extension disc; S3. After the guide hopper guides the mist into the double helix channel, under the action of centrifugal force generated by the rotating double helix channel, the mist containing fine particles adheres to the inner wall of the channel, realizing the separation of fine particles and mist, the separated mist water falls along the inner wall of the double helix channel and flows into the mud sedimentation unit, and the purified gas continues to flow upward, is discharged through the air outlet pipe, and a small part of the purified gas is extracted by the air extraction fan through the guide plate, thereby forming a circulation with air flow pressurization.

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