Vertical PP Acid and Alkali Exhaust Gas Scrubber

Abstract

The present invention discloses a vertical PP acid-base waste gas washing tower, which specifically relates to the technical field of washing towers, including a tower body, an air inlet arranged on the tower body, and a spray unit in the tower body, and also includes a splash block fixedly installed in the tower body and located between one side of the air inlet and the spray unit, an impeller block driven by air blast from the air inlet is rotatably arranged in the air duct opening opened on the splash block, and a through groove arranged in a circular array is opened on the top of the splash block; and also includes a splash assembly for splashing liquid. The vertical PP acid-base waste gas washing tower provided by the invention utilizes the acid-base waste gas to drive the impeller block to rotate and toggle the main push rod to slide, and then the elastic plate scrapes the tooth mouth to vibrate the grid plate, and at the same time, the main push rod is reset to knock the guide plate to vibrate, and then the liquid with washing liquid is splashed under the vibration of the grid plate and the guide plate and neutralized with the acid-base waste gas, thereby improving the utilization rate of the washing liquid under normal spraying of the washing liquid.

Description

Technical Field

[0001] The present invention relates to the technical field of scrubbers, and particularly to a vertical PP acid-base waste gas scrubber. Background Art

[0002] A PP acid-base waste gas scrubber is a device used to treat industrial waste gas, usually used to remove acidic or alkaline components in the gas to reduce its environmental pollution. The use of the scrubber generally involves the waste gas entering the tower from the bottom of the scrubber. Secondly, under the spraying of the washing liquid in the tower, it forms a countercurrent contact with the incoming waste gas, so as to use the washing liquid to neutralize acidic or alkaline substances in the waste gas to purify the waste gas.

[0003] According to the patent publication number CN109833761A, publication date: June 4, 2019, there is disclosed an energy-efficient vertical PP acid-base waste gas scrubber, including a tower body, an acid pump, a first medicine tank, an alkali pump, a second medicine tank, a first packing layer, a first spraying mechanism, a second packing layer and a second spraying mechanism. A first observation window is opened above one side of the tower body, a second observation window is opened below the first observation window on one side of the tower body, an air inlet is opened below the second observation window on one side of the tower body, a first support plate is installed at the bottom of the other side of the tower body, an acid pump is installed on the top of the first support plate, a first connecting pipe is installed on the top of the acid pump, and the top end of the first connecting pipe is connected to the top of the other side of the tower body. A first medicine tank is installed on one side of the acid pump, a second support plate is symmetrically installed on the other side of the tower body, an alkali pump is installed on the top of the second support plate, a second medicine tank is installed on one side of the alkali pump, and a second connecting pipe is installed on the other side of the alkali pump, and the top end of the second connecting pipe is connected to the middle of the other side of the tower body.

[0004] In the prior art including the above patent, in the use of the washing liquid, in order to make the washing liquid better contact and neutralize with the waste gas, the washing liquid is sprayed into a mist by a nozzle, so as to facilitate contact with the waste gas. However, in normal use, as the misty washing liquid falls, some unneutralized washing liquid will gather together with the already neutralized waste liquid and be discharged from the scrubber together, resulting in low utilization rate of the washing liquid. Summary of the Invention

[0005] The purpose of the present invention is to provide a vertical PP acid-base waste gas scrubber to solve the above technical problems.

[0006] To achieve the above purpose, the present invention provides the following technical solution: A vertical PP acid-base waste gas scrubber, including a tower body and an air inlet provided on the tower body and a spraying unit in the tower body, further including a splash block fixedly installed in the tower body and located between the air inlet side and the spraying unit. An impeller block driven by air blowing from the air inlet is rotatably arranged in the air duct opening on the splash block, and through grooves arranged in a circular array are opened at the top of the splash block;

[0007] It further includes a liquid splashing component for splashing liquid, and the liquid splashing component includes:

[0008] A grid plate, which is arranged in the through groove, and a plurality of air injection ports are opened on the grid plate, and inclined surfaces are symmetrically arranged on both sides of the grid plate at the air injection ports;

[0009] A main push rod, which is slidably arranged in the liquid splashing block, and the contact part arranged at the first end of the main push rod and the convex block on the impeller block are in blocking cooperation, and the elastic plate arranged on the main push rod scrapes the tooth openings arranged on the grid plate to vibrate the grid plate;

[0010] A main spring, which releases the stored energy when the main push rod disengages from the convex block to strike the guide plate on the impeller block.

[0011] Preferably, the elastic plates are respectively hinged on the vertical rods symmetrically arranged on the main push rod, and the bottom ends of the elastic plates are attached to the vertical rods when the contact part and the convex block are in blocking cooperation, and the elastic plates are pushed and flipped by the tooth openings when the main push rod strikes the guide plate.

[0012] Preferably, it includes a first knocking plate symmetrically hinged in the through groove, and a first torsion spring member for driving the bottom end of the first knocking plate to fit on the grid plate is sleeved on the second hinge shaft arranged on the first knocking plate.

[0013] Preferably, second knocking plates are symmetrically hinged in the through groove, and a second torsion spring member for driving the bottom end of the second knocking plate to fit on the grid plate is sleeved on the first hinge shaft arranged on the second knocking plate.

[0014] Preferably, a receiving hopper box is fixedly installed at the top end of the second knocking plate, and a drain port for leaking water when the second knocking plate is turned and tilted is opened on the inner wall of the receiving hopper box.

[0015] Preferably, the top ends of the second knocking plate and the first knocking plate approach and collide with each other, and the second torsion spring member and the first torsion spring member are respectively deformed and store energy when the second knocking plate and the first knocking plate rotate.

[0016] Preferably, it further includes first gears fixedly installed on and meshing with each other on the outer walls of the first hinge shaft and the second hinge shaft respectively, and second gears fixedly installed on and meshing with each other on the outer walls of the two second hinge shafts respectively.

[0017] Preferably, a cover is fixedly installed on the second knocking plate to cover the drain port, and when the top end of the first knocking plate fits on the cover, the bottom ends of the two first knocking plates approach each other to block the grid plate.

[0018] Preferably, it further includes a toothed rod member that slides on the splash block and meshes with one of the second gears. The first end of the toothed rod member is located on the path of the convex block, and the toothed rod member and the convex block are cooperatively blocked and slid.

[0019] Preferably, when the toothed rod member disengages from the convex block, the second torsion spring member and the first torsion spring member respectively release the stored energy to cause the toothed rod member to strike the deflector plate.

[0020] In the above technical solution, a vertical PP acid-base waste gas scrubbing tower provided by the present invention has the following beneficial effects: By using the acid-base waste gas introduced into the tower body to drive the impeller block to rotate, and then during the rotation of the impeller block, the main push rod is toggled, and then the elastic plate on the main push rod is used to scrape the tooth openings provided on the grid plate to vibrate the grid plate. Under the vibration of the grid plate, the liquid with the washing liquid splashes, and then the splashed liquid is neutralized with the acid-base waste gas again, thereby improving the utilization rate of the washing liquid. At the same time, when the main spring pushes the main push rod to reset, the main push rod is used to strike the deflector plate to vibrate the deflector plate and make the liquid on it splash, and then the washing liquid in the splashed liquid is neutralized with the acid-base waste gas flowing through the air duct again to improve the utilization rate of the washing liquid again. BRIEF DESCRIPTION OF THE DRAWINGS

[0021] In order to more clearly illustrate the technical solutions in the embodiments of the present application or the prior art, the following will briefly introduce the drawings required for use in the embodiments. Obviously, the drawings described below are only some embodiments recorded in the present invention. For those of ordinary skill in the art, other drawings can also be obtained based on these drawings.

[0022] Figure 1 Schematic diagram of the overall structure of the tower body provided by the embodiment of the present invention;

[0023] Figure 2 Schematic diagram of the impeller block structure provided by the embodiment of the present invention;

[0024] Figure 3 Schematic diagram of the impeller block assembled on the splash block provided by the embodiment of the present invention;

[0025] Figure 4 Schematic diagram of the splash block structure provided by the embodiment of the present invention;

[0026] Figure 5 Schematic diagram of the partial cross-sectional structure of the splash block provided by the embodiment of the present invention;

[0027] Figure 6 Schematic diagram of the overall cross-sectional structure of the tower body provided by the embodiment of the present invention;

[0028] Figure 7 Schematic diagram of the cross-sectional structure of the second striking plate provided by the embodiment of the present invention;

[0029] Figure 8 Schematic diagram of the enlarged structure at A in Figure 6 the embodiment of the present invention;

[0030] Figure 9 Schematic diagram of the enlarged structure at B in Figure 2 the embodiment of the present invention;

[0031] Figure 10 Schematic diagram of the enlarged structure at C in Figure 8 the embodiment of the present invention.

[0032] Description of reference numerals:

[0033] 1. Tower body; 2. Splash block; 3. Impeller block; 4. Grid plate; 5. First knocking plate; 6. Second knocking plate; 7. Main push rod; 8. Tooth rod member; 11. Air inlet; 12. Water inlet pipe; 13. Spraying frame; 14. Flow guide channel; 15. Annular channel; 16. Air passage; 17. Shunt channel; 18. Atomizing nozzle; 21. Air duct opening; 22. Through groove; 23. Support plate; 31. Flow guide plate; 32. Convex block; 33. Turbine blade; 41. Circulation port; 42. Air injection port; 43. Inclined surface portion; 44. Tooth opening; 51. First torsion spring member; 52. Second hinge shaft; 53. First gear; 54. Second gear; 61. Second torsion spring member; 62. Cover; 63. Hopper box; 64. Drainage port; 65. First hinge shaft; 71. Main spring; 72. Contact portion; 73. Elastic plate; 74. Limit torsion spring; 75. Vertical rod; 81. Curved surface portion; 82. Arc surface portion. Detailed implementation manner

[0034] In order to enable those skilled in the art to better understand the technical solution of the present invention, the present invention will be further introduced in detail below in conjunction with the accompanying drawings.

[0035] As Figures 1-10 shown, a vertical PP acid-base waste gas scrubbing tower includes a tower body 1, an air inlet 11 provided on the tower body 1, and a spraying unit inside the tower body 1. It also includes a splash block 2 fixedly installed inside the tower body 1 and located between the air inlet 11 and the spraying unit. An impeller block 3 driven by the air blown from the air inlet 11 is rotatably arranged in the air duct opening 21 opened on the splash block 2. A plurality of through grooves 22 arranged in a circular array are opened at the top of the splash block 2;

[0036] It also includes a splash component for splashing liquid, and the splash component includes:

[0037] A grid plate 4, which is arranged in the through groove 22, and a plurality of air injection ports 42 are opened on the grid plate 4. Inclined surface portions 43 are symmetrically arranged on both sides of the grid plate 4 at the air injection ports 42;

[0038] The main push rod 7 is slidably arranged in the splash block 2, and the abutting part 72 provided at the first end of the main push rod 7 and the convex block 32 on the impeller block 3 are in a blocking and disassembling fit. The elastic plate 73 provided on the main push rod 7 scrapes against the tooth openings 44 provided on the grid plate 4 to vibrate the grid plate 4;

[0039] The main spring 71 releases its stored energy when the main push rod 7 disengages from the convex block 32 to strike the guide plate 31 on the impeller block 3.

[0040] Specifically, the spraying unit includes a spraying rack 13 fixedly installed in the tower body 1. The diversion channels 14 provided on the spraying rack 13 are fixedly communicated with the water inlet pipe 12 provided on the outer wall of the tower body 1. The annular channel 15 provided on the spraying rack 13 is communicated with the diversion channels 14. A plurality of diversion channels 17 communicating the annular channel 15 and the diversion channels 14 are provided on the spraying rack 13, and the bottom ports of each diversion channel 17 are respectively fixedly installed with atomizing nozzles 18. By pumping the washing liquid along the water inlet pipe 12 into the diversion channels 14, then the washing liquid in the diversion channels 14 flows to the annular channel 15, and the washing liquid in the annular channel 15 and the diversion channels 14 respectively flow to a plurality of diversion channels 17, and then spray out misty droplets along the atomizing nozzles 18.

[0041] Further, the splash block 2 is located below the spraying rack 13. The acid-base waste gas blown into the tower body 1 along the air inlet 11 is located below the splash block 2. A plurality of turbine blades 33 arranged in a circular array are provided on the outer wall of the impeller block 3, and the impeller block 3 is rotatably arranged on the support plate 23 fixedly installed in the air duct opening 21. The gas blown into the tower body 1 along the air inlet 11 begins to diffuse towards the top of the tower body 1. At this time, the gas flows along the air duct opening 21 and the through groove 22 respectively. Due to the flow of the gas on the turbine blades 33 to drive the impeller block 3 to rotate on the support plate 23. At the same time, part of the gas flows through the air inlet openings 42 on the grid plate 4 into the through groove 22.

[0042] Furthermore, the elastic plate 73 is fixedly installed on the main push rod 7. After the atomizing nozzles 18 spray out misty droplets, as the misty droplets fall, they are neutralized with the acid-base waste gas flowing out along the through groove 22 and the air duct opening 21. At the same time, part of the misty droplets will condense into droplets when contacting the guide plate 31 and the grid plate 4. Part of the droplets condensed on the grid plate 4 will flow along the air inlet openings 42 to the bottom of the tower body 1, and at the same time, part of the droplets condensed on the guide plate 31 will flow along the inner wall of the air duct opening 21 to the bottom of the tower body 1.

[0043] Furthermore, the first end of the main spring 71 is fixedly installed at the second end of the main push rod 7, and the second end of the main spring 71 is fixedly installed on the splash block 2. The inclined surfaces 43 face the air inlet 42 respectively, and the bumps 32 are fixedly installed on the side wall of the impeller block 3 and are arranged in a circular array. Therefore, when the acid-base waste gas flows on the turbine blades 33 to drive the impeller block 3 to rotate on the support plate 23, at this time, the bumps 32 on the impeller block 3 approach and press against the contact part 72 to make the main push rod 7 slide. At this time, the main push rod 7 slides to squeeze the main spring 71 to deform and store energy. Then, when the bumps 32 disengage from the contact part 72, the main spring 71 releases the stored energy to make the main push rod 7 slide again. Therefore, during the reciprocating sliding of the main push rod 7, the elastic plate 73 on the main push rod 7 is used to scrape the tooth openings 44 provided on the grid plate 4 to make the grid plate 4 vibrate. When the grid plate 4 vibrates, the liquid on the inclined surface 43 is sputtered due to the vibration and splashes to the air inlet 42. Along with the acid-base waste gas flowing through the air inlet 42, it is neutralized again with the unreacted washing liquid in the splashed liquid, thereby improving the utilization rate of the washing liquid. At the same time, when the main push rod 7 disengages from the bumps 32 and the main spring 71 releases the stored energy to make the main push rod 7 slide, the contact part 72 on the main push rod 7 is used to knock the guide plate 31 on the impeller block 3. At this time, the liquid condensed on the guide plate 31 splashes, and then the acid-base waste gas flowing between the inner wall of the air duct opening 21 and the outer wall of the impeller block 3 and the unreacted washing liquid in the splashed liquid are neutralized again to improve the utilization rate of the washing liquid. Then, the neutralized gas flows to the top of the tower body 1 through the air passage 16 opened on the spray rack 13.

[0044] Compared with directly sliding and accumulating the condensed liquid to discharge it from the tower body 1, by sputtering the washing liquid in the condensed liquid and reacting it with the acid-base waste gas again, the utilization rate of the washing liquid is improved.

[0045] In the above technical solution, the acid-base waste gas introduced into the tower body 1 is used to drive the impeller block 3 to rotate. Then, during the rotation of the impeller block 3, the main push rod 7 is toggled. Furthermore, the elastic plate 73 on the main push rod 7 is used to scrape the tooth openings 44 provided on the grid plate 4 to make the grid plate 4 vibrate. Under the vibration of the grid plate 4, the liquid with the washing liquid splashes, and then the splashed liquid is neutralized with the acid-base waste gas again, thereby improving the utilization rate of the washing liquid. At the same time, when the main spring 71 pushes the main push rod 7 to reset, the main push rod 7 is used to knock the guide plate 31 to make the guide plate 31 vibrate and the liquid on it splash, and then the washing liquid in the splashed liquid is neutralized with the acid-base waste gas flowing through the air duct opening 21 again to improve the utilization rate of the washing liquid again.

[0046] As a further embodiment provided by the present invention, the elastic plates 73 are respectively hinged on the vertical rods 75 symmetrically arranged on the main push rod 7, and the bottom ends of the elastic plates 73 are attached to the vertical rods 75 when the abutting portion 72 and the convex block 32 are in blocking and disassembling cooperation. When the main push rod 7 strikes the flow guiding plate 31, the elastic plates 73 are pushed and flipped by the tooth openings 44.

[0047] Specifically, as Figure 8 and Figure 10 shown, a limiting torsion spring 74 is sleeved on the hinge shaft of the elastic plate 73 hinged on the vertical rod 75. The two ends of the limiting torsion spring 74 are respectively fixedly installed on the vertical rod 75 and the elastic plate 73, and the limiting torsion spring 74 drives the bottom end of the elastic plate 73 to be attached to the vertical rod 75.

[0048] Then, when the acid-base waste gas is blown into the tower body 1 along the air inlet 11 and flows along the air duct opening 21 and the through groove 22 respectively, the acid-base waste gas flows on the turbine blades 33 in the air duct opening 21 to drive the impeller block 3 to rotate on the support plate 23. At this time, the convex block 32 on the impeller block 3 approaches and presses the abutting portion 72 to make the main push rod 7 slide. At this time, the main push rod 7 slides to squeeze the main spring 71 to deform and store energy. At the same time, due to the sliding of the main push rod 7, the elastic plate 73 on the main push rod 7 is scraped by the tooth openings 44 arranged on the grid plate 4 to make the grid plate 4 vibrate. By using the vertical rod 75 to support the elastic plate 73, the elastic plate 73 remains in a vertical state when it is scraped against the tooth openings 44. Then, when the convex block 32 disengages from the abutting portion 72, the main spring 71 releases the stored energy to make the main push rod 7 slide again. At this time, the elastic plate 73 is pushed by the tooth openings 44 to flip, and at the same time, the abutting portion 72 on the main push rod 7 strikes the flow guiding plate 31 on the impeller block 3.

[0049] Therefore, the reciprocating movement of the main push rod 7 is used to drive the grid plate 4 and the flow guiding plate 31 to vibrate, so that the condensed liquid droplets with the washing liquid splash due to the vibration of the grid plate 4 and the flow guiding plate 31 and are neutralized with the acid-base waste gas.

[0050] During the process of the main push rod 7 sliding to make the abutting portion 72 strike the impeller block 3, the elastic plate 73 is pushed by the tooth openings 44 to flip, thereby reducing the resistance received when the main push rod 7 slides. When the main spring 71 releases the stored energy to push the main push rod 7 to slide, the abutting portion 72 can strike the flow guiding plate 31 more strongly to vibrate. Thereby enhancing the effect of liquid splashing on the flow guiding plate 31.

[0051] As another embodiment provided by the present invention, it includes a first knocking plate 5 symmetrically hinged in the through groove 22, and a first torsion spring member 51 that drives the bottom end of the first knocking plate 5 to be attached to the grid plate 4 is sleeved on the second hinge shaft 52 provided on the first knocking plate 5.

[0052] Specifically, both ends of the first torsion spring member 51 are fixedly installed on the first percussion plate 5 and the inner wall on one side of the through groove 22. The first torsion spring member 51 drives the bottom end of the first percussion plate 5 to fit against the grid plate 4. Therefore, during the process that the elastic plate 73 on which the main push rod 7 slides scrapes against the tooth openings 44 to vibrate the grid plate 4, since the bottom end of the first percussion plate 5 fits against the grid plate 4, the first percussion plate 5 also vibrates accordingly. Furthermore, the droplets with washing liquid condensed on the first percussion plate 5 splash due to the vibration of the first percussion plate 5, and then neutralize with the acid-base waste gas ejected from the air supply opening 42, thereby improving the utilization rate of the washing liquid.

[0053] Furthermore, during the process of driving the bottom end of the first percussion plate 5 to turn up and away from the grid plate 4, the first torsion spring member 51 deforms and stores energy. Then, when the first percussion plate 5 is released, the first torsion spring member 51 releases the stored energy to drive the bottom end of the first percussion plate 5 to strike the grid plate 4 and vibrate. When the grid plate 4 vibrates, the liquid on the inclined surface portion 43 splashes due to the vibration and splashes to the air supply opening 42, and the acid-base waste gas flowing along the air supply opening 42 neutralizes with the unreacted washing liquid in the splashing liquid again. And when the first percussion plate 5 impacts the grid plate 4, the first percussion plate 5 itself will also vibrate, further causing the droplets condensed on the first percussion plate 5 to splash again, so as to neutralize with the acid-base waste gas flowing through the air supply opening 42 again.

[0054] Furthermore, the way for the first percussion plate 5 to be driven to flip can be to push the first percussion plate 5 to flip and release by means of a motor cooperating with a cam; it can also be by means of an electric push rod cooperating with a connecting rod; or any other way known to those skilled in the art to drive the first percussion plate 5 to flip and release is acceptable.

[0055] As another embodiment provided by the present invention, a second percussion plate 6 is symmetrically and pivotally installed in the through groove 22, and a second torsion spring member 61 that drives the bottom end of the second percussion plate 6 to fit against the grid plate 4 is sleeved on the first pivot shaft 65 provided on the second percussion plate 6.

[0056] Specifically, both ends of the second torsion spring member 61 are fixedly installed on the second percussion plate 6 and the inner wall on one side of the through groove 22. The second torsion spring member 61 drives the bottom end of the second percussion plate 6 to fit against the grid plate 4. Therefore, during the process that the elastic plate 73 on which the main push rod 7 slides scrapes against the tooth openings 44 to vibrate the grid plate 4, since the bottom end of the second percussion plate 6 fits against the grid plate 4, the second percussion plate 6 also vibrates accordingly. Furthermore, the droplets with washing liquid condensed on the second percussion plate 6 splash due to the vibration of the second percussion plate 6, and then neutralize with the acid-base waste gas ejected from the air supply opening 42 to improve the utilization rate of the washing liquid.

[0057] Furthermore, during the process of driving the bottom end of the second knocking plate 6 to turn upwards away from the grid plate 4, the second torsion spring member 61 deforms and stores energy. Then, when releasing the second knocking plate 6, the second torsion spring member 61 releases the stored energy to drive the bottom end of the second knocking plate 6 to knock the grid plate 4 to vibrate. When the grid plate 4 vibrates, the liquid on the inclined surface portion 43 splashes due to the vibration and splashes to the air inlet 42. The acid-base waste gas flowing along the air inlet 42 and the washing liquid that has not reacted in the splashing liquid are neutralized again. And when the second knocking plate 6 impacts the grid plate 4, the second knocking plate 6 itself will also vibrate, thereby causing the liquid droplets condensed on the second knocking plate 6 to splash again, so as to be neutralized with the acid-base waste gas flowing through the air inlet 42 again.

[0058] Furthermore, the way the second knocking plate 6 is driven to turn over can be to drive the second knocking plate 6 to turn over and release by a motor cooperating with a cam; it can also be by an electric push rod cooperating with a connecting rod; or any other way known to those skilled in the art to drive the second knocking plate 6 to turn over and release is acceptable.

[0059] As another embodiment provided by the present invention, a receiving box 63 is fixedly installed at the top end of the second knocking plate 6, and a drain port 64 for leaking water when the second knocking plate 6 turns and tilts is provided on the inner wall of the receiving box 63.

[0060] Specifically, by using the receiving box 63 fixedly installed at the top end of the second knocking plate 6, when the bottom end of the second knocking plate 6 is driven by the second torsion spring member 61 to fit on the grid plate 4, the liquid falling from the spray rack 13 can accumulate in the receiving box 63. Then, when the bottom end of the second knocking plate 6 turns upwards and tilts, the second torsion spring member 61 deforms and stores energy. At this time, the liquid accumulated in the receiving box 63 drains out of the receiving box 63 along the drain port 64, and the liquid drained from the receiving box 63 impacts the grid plate 4 and splashes under the action of gravity, and the splashing liquid can be neutralized with the acid-base waste gas flowing through the air inlet 42 again. Secondly, when stopping driving the bottom end of the second knocking plate 6 to turn upwards and release, the second torsion spring member 61 releases the stored energy to drive the bottom end of the second knocking plate 6 to knock the grid plate 4 to vibrate. When the grid plate 4 vibrates, the liquid on the inclined surface portion 43 splashes due to the vibration and splashes to the air inlet 42. The acid-base waste gas flowing along the air inlet 42 and the washing liquid that has not reacted in the splashing liquid are neutralized again. And when the second knocking plate 6 impacts the grid plate 4, the second knocking plate 6 itself will also vibrate, thereby causing the liquid droplets condensed on the second knocking plate 6 to splash again, so as to be neutralized with the acid-base waste gas flowing through the air inlet 42 again.

[0061] As the optimal embodiment provided by the present invention, the top ends of the second knocking plate 6 and the first knocking plate 5 approach and collide with each other, and when the second knocking plate 6 and the first knocking plate 5 rotate, the second torsion spring member 61 and the first torsion spring member 51 deform and store energy respectively.

[0062] Specifically, by turning up the bottom ends of the second striking plate 6 and the first striking plate 5 respectively, the top ends of the second striking plate 6 and the first striking plate 5 approach and collide with each other. At this time, the second striking plate 6 and the first striking plate 5 vibrate respectively. Under the vibration of the second striking plate 6 and the first striking plate 5, the washing liquid with unreacted substances condensed on the second striking plate 6 and the first striking plate 5 splashes, and neutralizes with the acid-base waste gas flowing through the air inlet 42 respectively. At the same time, when the second striking plate 6 and the first striking plate 5 turn over, the second torsion spring member 61 and the first torsion spring member 51 are deformed and store energy respectively.

[0063] Further, when stopping driving the bottom ends of the second striking plate 6 and the first striking plate 5 to turn up and releasing them, at this time, the second torsion spring member 61 and the first torsion spring member 51 release the stored energy respectively, so that the bottom ends of the second striking plate 6 and the first striking plate 5 strike the grid plate 4 respectively, causing the grid plate 4, the second striking plate 6 and the first striking plate 5 to vibrate respectively. As a result, the washing liquid with unreacted substances condensed on the grid plate 4, the second striking plate 6 and the first striking plate 5 splashes again and neutralizes with the acid-base waste gas flowing through the air inlet 42 again, thus making full use of the droplets of the condensed washing liquid with unreacted substances to avoid it directly flowing to the bottom inside the tower body 1, resulting in the problem of low utilization rate of the washing liquid.

[0064] As another embodiment provided by the present invention, it further includes a first gear 53 fixedly installed on and meshing with the outer walls of the first hinge shaft 65 and the second hinge shaft 52 respectively, and second gears 54 fixedly installed on the outer walls of the two second hinge shafts 52 and meshing with each other.

[0065] Specifically, through the meshing of the first gears 53 between the first hinge shaft 65 and the second hinge shaft 52 on the adjacent second striking plate 6 and the first striking plate 5, when a single second striking plate 6 or the first striking plate 5 rotates, it drives the corresponding second striking plate 6 or the first striking plate 5 to turn over synchronously. And through the meshing of the second gears 54 on the outer walls of the second hinge shafts 52 of the two first striking plates 5, when a single first striking plate 5 turns over, it drives the other first striking plate 5 to turn over. Therefore, when driving any one of the second striking plates 6 or the first striking plates 5 to turn over, with the meshing between the two second gears 54 and the meshing between the two first gears 53, the two second striking plates 6 and the two first striking plates 5 in the through groove 22 are driven to turn over synchronously respectively, and because the first gears 53 between the first hinge shaft 65 and the second hinge shaft 52 mesh with each other, during the turning process of the second striking plate 6 and the first striking plate 5, the top ends of the second striking plate 6 and the first striking plate 5 approach and collide with each other.

[0066] The driving method for any one of the second striking plates 6 or the first striking plates 5 to flip and release within the through groove 22 can be through a motor cooperating with a cam to push any one of the second striking plates 6 or the first striking plates 5 to flip and release; it can also be through an electric push rod cooperating with a connecting rod; or any driving method known to those skilled in the art for any one of the second striking plates 6 or the first striking plates 5 to flip and release is acceptable.

[0067] As another embodiment provided by the present invention, a cover 62 covering the drain port 64 is fixedly installed on the second striking plate 6, and when the top ends of the two first striking plates 5 are attached to the cover 62, the bottom ends of the two first striking plates 5 approach each other respectively to block the grid plate 4.

[0068] Specifically, an exhaust passage communicating with the drain port 64 is provided between the cover 62 and the outer wall of the second striking plate 6.

[0069] When any one of the second striking plates 6 or the first striking plates 5 flips, in cooperation with the meshing between the two second gears 54 and the meshing between the two first gears 53, the two second striking plates 6 and the two first striking plates 5 within the through groove 22 are respectively driven to flip synchronously, and due to the meshing of the first gear 53 between the first hinge shaft 65 and the second hinge shaft 52, the top ends of the second striking plate 6 and the first striking plate 5 approach and collide with each other.

[0070] Further, as Figure 7 and Figure 8 shown, when the top ends of the second striking plate 6 and the first striking plate 5 approach and collide with each other, at this time the first striking plate 5 is attached to the cover 62 on the second striking plate 6, and the bottom ends of the first striking plate 5 turn up respectively to be away from the grid plate 4, and during the process of the bottom ends of the two first striking plates 5 turning up respectively, they approach each other, thereby partially shielding the communication ports 41 opened on the grid plate 4. Under the certain shielding of the two first striking plates 5, part of the acid-base waste gas flowing from the communication port 41 flows along the first striking plate 5 to the exhaust passage, and because the first striking plate 5 is attached to the cover 62 to seal the gap between the first striking plate 5 and the cover 62, most of the acid-base waste gas flowing along the air inlet 42 and the communication port 41 on the grid plate 4 will flow into the exhaust passage respectively. Along with the flipping and tilting of the top end of the second striking plate 6, the liquid accumulated in the receiving box 63 is discharged along the drain port 64 into the exhaust passage, and the liquid flowing in the exhaust passage and the gas flowing in the exhaust passage collide with each other to break up the liquid, so that the unreacted washing liquid in the broken-up liquid reacts with the acid-base waste gas again for neutralization. By using the flipping of the first striking plate 5 to block the gap between the first striking plate 5 and the cover 62 and the gap between the two first striking plates 5, most of the air blast within the through groove 22 can act on the exhaust passage, thereby enhancing the flow rate of the acid-base waste gas in the exhaust passage, and thus more strongly dispersing the liquid discharged into the exhaust passage.

[0071] As yet another embodiment further provided by the present invention, it further includes a toothed rod member 8 that slides on the splash block 2 and meshes with one of the second gears 54. The first end of the toothed rod member 8 is located on the moving path of the convex block 32, and the toothed rod member 8 and the convex block 32 are in a blocking and disassembling cooperation for sliding.

[0072] Specifically, as Figure 5 and Figure 9 shown, the toothed rod member 8 slides within the splash block 2 and meshes with one of the second gears 54, and the first end of the toothed rod member 8 is located on the moving path of the convex block 32. Therefore, when the convex block 32 rotates as the impeller block 3 rotates, the convex block 32 presses the curved surface portion 81 provided at the first end of the toothed rod member 8, thereby causing the toothed rod member 8 and the second gear 54 to mesh with each other to rotate the second hinge shaft 52. When the second hinge shaft 52 rotates, through the meshing between the two second gears 54 and the meshing between the two first gears 53, the two second knocking plates 6 and the two first knocking plates 5 in the through groove 22 are respectively driven to flip synchronously, and because the first gear 53 between the first hinge shaft 65 and the second hinge shaft 52 meshes with each other, it is realized that during the flipping process of the second knocking plate 6 and the first knocking plate 5, the top ends of the second knocking plate 6 and the first knocking plate 5 approach and collide with each other.

[0073] Furthermore, when an arc surface portion 82 connected to one side of the curved surface portion 81 is provided at the first end of the toothed rod member 8, when the end portion of the convex block 32 moves along the curved surface portion 81 to the arc surface portion 82, at this time, one side of the top ends of the two first knocking plates 5 is respectively attached to the cover 62 on the second knocking plate 6, and the bottom ends of the first knocking plates 5 turn up respectively to be away from the grid plate 4, and during the process of the bottom ends of the two first knocking plates 5 turning up respectively, they approach each other, thereby partially shielding the through holes 41 opened on the grid plate 4. Under the certain shielding of the two first knocking plates 5, part of the acid-base exhaust gas flowing from the through holes 41 flows along the first knocking plates 5 to the exhaust duct, and because the first knocking plates 5 are attached to the cover 62 to seal the gap between the first knocking plates 5 and the cover 62, along with the top end of the second knocking plate 6 turning and tilting, the liquid accumulated in the receiving box 63 is discharged into the exhaust duct along the drain port 64, and the liquid flowing in the exhaust duct collides with the gas flowing in the exhaust duct to cause the liquid to be impacted and dispersed, so that the unreacted washing liquid in the dispersed liquid reacts with the acid-base exhaust gas again for neutralization. When the end portion of the convex block 32 slides along the arc surface portion 82, at this time, one side of the top ends of the first knocking plates 5 remains attached to the cover 62, so that the air can continue to flow through the exhaust duct for a certain period of time.

[0074] As the optimal embodiment further provided by the present invention, when the toothed rod member 8 disengages from the convex block 32, the second torsion spring member 61 and the first torsion spring member 51 respectively release the stored energy to cause the toothed rod member 8 to knock the guide plate 31.

[0075] Specifically, by using the second torsion spring member 61 and the first torsion spring member 51 to drive the bottom ends of the second striking plate 6 and the first striking plate 5 to respectively fit onto the grid plate 4, and then when the acid-base waste gas is blown into the tower body 1 along the air inlet 11, the gas blown into the tower body 1 along the air inlet 11 starts to diffuse towards the top of the tower body 1. At this time, the gas flows along the air duct openings 21 and the through grooves 22 respectively. Since the gas flows on the turbine blades 33 to drive the impeller block 3 to rotate on the support plate 23. At the same time, part of the gas flows through the air injection openings 42 on the grid plate 4 into the through grooves 22.

[0076] When the impeller block 3 rotates, at this time, the convex block 32 on the impeller block 3 approaches and presses against the abutting portion 72 to cause the main push rod 7 to slide. At this time, the main push rod 7 slides to squeeze the main spring 71 to deform and store energy. At the same time, due to the sliding of the main push rod 7, the elastic plate 73 on the main push rod 7 scrapes against the tooth openings 44 provided on the grid plate 4 to cause the grid plate 4 to vibrate. And by using the vertical rod 75 to support the elastic plate 73, so that the elastic plate 73 remains vertical when scraping against the tooth openings 44. When the grid plate 4 vibrates, at this time, the liquid on the inclined surface portion 43 splashes due to the vibration and splashes onto the air injection openings 42. Along with the acid-base waste gas flowing through the air injection openings 42, it is neutralized again with the unreacted washing liquid in the splashed liquid, thereby improving the utilization rate of the washing liquid. Secondly, since the bottom ends of the second striking plate 6 and the first striking plate 5 respectively fit onto the grid plate 4, they will vibrate along with the vibration of the grid plate 4. When the second striking plate 6 and the first striking plate 5 vibrate, at this time, the liquid droplets with washing liquid condensed on the second striking plate 6 and the first striking plate 5 splash due to the vibration, and then are neutralized with the acid-base waste gas ejected from the air injection openings 42 to further improve the utilization rate of the washing liquid.

[0077] Furthermore, when the abutting portion 72 on the main push rod 7 disengages from the convex block 32, the main spring 71 releases the stored energy to cause the main push rod 7 to slide. At this time, the elastic plate 73 is pushed by the tooth openings 44 to flip. At the same time, the abutting portion 72 on the main push rod 7 strikes the guide plate 31 on the impeller block 3. At this time, the liquid condensed on the guide plate 31 splashes, and then the acid-base waste gas flowing between the inner wall of the air duct opening 21 and the outer wall of the impeller block 3 is neutralized again with the unreacted washing liquid in the splashed liquid.

[0078] Further, as the impeller block 3 continues to rotate, after the convex block 32 disengages from the abutting portion 72, it begins to press the curved surface portion 81 provided at the first end of the toothed rod member 8, thereby causing the toothed rod member 8 to slide and mesh with the second gear 54 to rotate the second hinge shaft 52. When the second hinge shaft 52 rotates, through the meshing between the two second gears 54 and the meshing between the two first gears 53, the two second striking plates 6 and the two first striking plates 5 in the through groove 22 are respectively driven to flip synchronously. And because the first gear 53 between the first hinge shaft 65 and the second hinge shaft 52 meshes with each other, during the flipping process of the second striking plate 6 and the first striking plate 5, the top ends of the second striking plate 6 and the first striking plate 5 approach and collide with each other.

[0079] When the top ends of the second striking plate 6 and the first striking plate 5 approach and collide with each other, at this time, the second striking plate 6 and the first striking plate 5 respectively generate vibrations, so that the unreacted washing liquid condensed on them splashes and respectively neutralizes the acid-base waste gas flowing through the air inlet 42. At the same time, when the second striking plate 6 and the first striking plate 5 flip, the second torsion spring member 61 and the first torsion spring member 51 are respectively deformed and store energy.

[0080] Further, when the end portion of the convex block 32 moves along the curved surface portion 81 to the arc surface portion 82, at this time, one side of the top ends of the two first striking plates 5 respectively fits against the cover 62 on the second striking plate 6, and the bottom ends of the first striking plates 5 respectively turn up away from the grid plate 4. During the process of the bottom ends of the two first striking plates 5 turning up, they approach each other, thereby partially shielding the flow ports 41 opened on the grid plate 4. Under the shielding of the two first striking plates 5 to a certain extent, part of the acid-base waste gas flowing from the flow port 41 flows along the first striking plate 5 to the exhaust duct. And because the first striking plate 5 fits against the cover 62 to seal the gap between the first striking plate 5 and the cover 62, along with the top end of the second striking plate 6 flipping and tilting, the liquid accumulated in the receiving hopper box 63 is discharged along the drain port 64 into the exhaust duct. The liquid flowing in the exhaust duct and the gas flowing in the exhaust duct collide with each other, so that the liquid is impacted and dispersed. Thus, the unreacted washing liquid in the dispersed liquid neutralizes the acid-base waste gas again. When the end portion of the convex block 32 slides along the arc surface portion 82, at this time, one side of the top end of the first striking plate 5 remains in a state of fitting against the cover 62, so that the air can continue to flow through the exhaust duct for a certain period of time.

[0081] Further, when the end of the bump 32 disengages from the arc-shaped surface portion 82, at this time, the second torsion spring member 61 and the first torsion spring member 51 respectively release the stored energy, thereby causing the first hinge shaft 65 and the second hinge shaft 52 to reset and flip. At this time, the second gear 54 meshes with the toothed rod member 8 again to cause the toothed rod member 8 to slide and impact the deflector 31. At the same time, due to the reset and flip of the first hinge shaft 65 and the second hinge shaft 52, the second striking plate 6 and the first striking plate 5 are driven to reset and flip, and the bottoms of the second striking plate 6 and the first striking plate 5 respectively impact the grid plate 4, so that the grid plate 4 vibrates again to cause the liquid on the grid plate 4 to splash, thereby causing the splashed acid-base waste gas containing unreacted washing liquid and flowing through the air inlet 42 to be neutralized again.

[0082] Therefore, by using the multiple vibrations of the grid plate 4 and the multiple vibrations of the deflector 31, the second striking plate 6 and the first striking plate 5, the unreacted washing liquid in the condensed liquid is splashed and neutralized with the acid-base waste gas again, so as to improve the neutralization of the washing liquid with the acid-base waste gas more fully during a single spraying process, thereby improving the utilization rate of the washing liquid.

[0083] Some exemplary embodiments of the present invention have been described only by way of illustration. Without doubt, for those of ordinary skill in the art, the described embodiments can be modified in various different ways without departing from the spirit and scope of the present invention. Therefore, the above drawings and description are illustrative in nature and should not be construed as limiting the scope of the claims of the present invention.

Claims

1. A vertical PP acid-base waste gas scrubbing tower, comprising a tower body (1), an air inlet (11) provided on the tower body (1), and a spraying unit inside the tower body (1), characterized in that, It further includes a splash block (2) fixedly installed inside the tower body (1) and located between the air inlet (11) side and the spraying unit. An impeller block (3) driven by the air blast from the air inlet (11) is rotatably arranged in the air duct opening (21) formed on the splash block (2). A plurality of through grooves (22) arranged in a circular array are formed at the top of the splash block (2). It further includes a splash component for splashing liquid, and the splash component includes: A grid plate (4) is arranged in the through groove (22), and a plurality of air filling openings (42) are formed on the grid plate (4). Oblique faces (43) are symmetrically arranged on both sides of the grid plate (4) at the air filling openings (42). A main push rod (7) is slidably arranged in the splash block (2). A contact portion (72) arranged at the first end of the main push rod (7) and a convex block (32) on the impeller block (3) are in blocking and disengaging cooperation. An elastic plate (73) arranged on the main push rod (7) scrapes against a toothed opening (44) arranged on the grid plate (4) to vibrate the grid plate (4). A main spring (71) releases the stored energy to strike a deflector plate (31) on the impeller block (3) when the main push rod (7) disengages from the convex block (32). It includes first striking plates (5) symmetrically hinged in the through groove (22), and a first torsion spring member (51) for driving the bottom end of the first striking plate (5) to fit against the grid plate (4) is sleeved on a second hinge shaft (52) arranged on the first striking plate (5). Second striking plates (6) are symmetrically hinged in the through groove (22), and a second torsion spring member (61) for driving the bottom end of the second striking plate (6) to fit against the grid plate (4) is sleeved on a first hinge shaft (65) arranged on the second striking plate (6). A receiving hopper box (63) is fixedly installed at the top end of the second striking plate (6). A drain opening (64) for leaking water when the second striking plate (6) turns and tilts is formed on the inner wall of the receiving hopper box (63). A cover (62) covering the drain opening (64) is fixedly installed on the second striking plate (6). When the top end of the first striking plate (5) fits against the cover (62), the bottom ends of the two first striking plates (5) approach each other to block the grid plate (4).

2. The vertical PP acid-base waste gas scrubbing tower according to claim 1, wherein, The elastic plates (73) are respectively hinged on vertical rods (75) symmetrically arranged on the main push rod (7). When the contact portion (72) and the convex block (32) are in blocking and disengaging cooperation, the bottom ends of the elastic plates (73) fit against the vertical rods (75). When the main push rod (7) strikes the deflector plate (31), the elastic plates (73) are pushed by the toothed opening (44) to turn over.

3. The vertical PP acid-base waste gas scrubbing tower according to claim 1, wherein The top ends of the second striking plate (6) and the first striking plate (5) approach each other and collide. When the second striking plate (6) and the first striking plate (5) rotate, the second torsion spring member (61) and the first torsion spring member (51) are respectively deformed and store energy.

4. The vertical PP acid and alkali waste gas scrubbing tower according to claim 3, characterized in that, It further includes first gears (53) fixedly installed on the outer walls of the first hinge shaft (65) and the second hinge shaft (52) and meshing with each other. Second gears (54) meshing with each other are respectively fixedly installed on the outer walls of the two second hinge shafts (52).

5. The vertical PP acid and alkali waste gas scrubbing tower according to claim 4, characterized in that, Further included is a toothed rod member (8) that slides on the splash block (2) and meshes with one of the second gears (54). The first end of the toothed rod member (8) is located on the path of movement of the convex block (32), and the toothed rod member (8) and the convex block (32) are in a blocking and disassembling fit for sliding.

6. The vertical PP acid and alkali waste gas scrubbing tower according to claim 5, characterized in that, When the toothed rod member (8) disengages from the convex block (32), the second torsion spring member (61) and the first torsion spring member (51) respectively release the stored energy to cause the toothed rod member (8) to strike the flow guide plate (31).

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