A packed tower for flue gas desulfurization and denitrification purification

Abstract

The present invention discloses a packing tower for flue gas desulfurization and denitrification purification treatment, specifically relating to the technical field of flue gas purification treatment. It includes a support chassis, at the top of which a bottom ring support is fixedly installed. Inside the bottom ring support, a connecting inner frame is fixedly installed. In the middle of the connecting inner frame, a tower body is fixedly installed. At the bottom of the tower body, an air inlet pipe is fixedly installed, and at the top of the tower body, a liquid inlet pipe is fixedly installed. At the inner end of the liquid inlet pipe, a liquid distribution part is fixedly installed. Between the air inlet pipe and the liquid inlet pipe, a plurality of packing mechanisms are evenly distributed. Between the bottom ring support and the plurality of packing mechanisms, a packing replacement mechanism is provided. In the present invention, by setting the packing mechanism and cooperating with the use of the packing replacement mechanism, the flue gas can be subjected to desulfurization and denitrification purification treatment, and the packing can be quickly disassembled and replaced without affecting the desulfurization and denitrification purification treatment of the flue gas by the packing tower, thereby improving the use effect of the entire packing tower.

Description

Technical Field

[0001] The present invention relates to the technical field of flue gas purification treatment, and particularly to a packed tower for flue gas desulfurization and denitrification purification treatment. Background Technique

[0002] Flue gas desulfurization and denitrification purification treatment is to remove harmful substances such as sulfur dioxide (SO 2 ), nitrogen oxides (NOx) in flue gas through physical, chemical or biological methods to reduce air pollution and protect the environment. Among them, the packed tower is an important device for gas-liquid contact reaction, which is widely used in wet desulfurization and denitrification systems, mainly including structural components such as a tower body and packing; the flue gas enters from the bottom of the tower and meets the liquid (such as desulfurization liquid or denitrification liquid) in the tower. The liquid is evenly distributed from the top of the tower to the packing layer, forming a thin film through the packing layer to increase the contact area between the gas and the liquid. SO 2 or NOx in the flue gas reacts with the reactant (such as lime slurry or ammonia water) in the liquid to form soluble compounds, so as to achieve the purpose of desulfurization and denitrification. The flue gas after the reaction is discharged from the top of the tower and usually contains pollutants with a lower concentration;

[0003] After the packed tower conducts flue gas desulfurization and denitrification purification operation for a period of time, the internal packing will show the phenomena of scaling, corrosion, sinking and aging, resulting in the decline of its physical and chemical properties. It is necessary to replace the packing to prevent affecting the normal desulfurization and denitrification operation of the flue gas. However, for the traditional packing replacement, it is necessary to disassemble and replace it level by level, and remove the packing bracket, liquid distributor, etc. one by one, resulting in troublesome disassembly and affecting the overall use effect. For this reason, we propose a packed tower for flue gas desulfurization and denitrification purification treatment to solve the above problems. Summary of the Invention

[0004] The purpose of the present invention is to provide a packed tower for flue gas desulfurization and denitrification purification treatment to solve the problems raised in the above background technique.

[0005] To achieve the above purpose, the present invention provides the following technical solution: A packed tower for flue gas desulfurization and denitrification purification treatment, including a support chassis, a bottom ring bracket is fixedly installed at the top of the support chassis, a connecting inner frame is fixedly installed inside the bottom ring bracket, a tower body is fixedly installed in the middle of the connecting inner frame, an air inlet pipe opening is fixedly installed at the bottom of the tower body, a liquid inlet pipe opening is fixedly installed at the top of the tower body, a liquid distribution member is fixedly installed at the inner end of the liquid inlet pipe opening, a plurality of packing mechanisms are evenly distributed between the air inlet pipe opening and the liquid inlet pipe opening, the plurality of packing mechanisms are installed on the tower body, and a packing replacement mechanism is arranged between the bottom ring bracket and the plurality of packing mechanisms.

[0006] Preferably, the packing mechanism includes a packing cross-frame. In the middle of the top end of the packing cross-frame, a first vertical pipe is fixedly installed. In the middle of the bottom end of the packing cross-frame, a second vertical pipe is fixedly installed. The first vertical pipe and the second vertical pipe are fixedly installed on the tower body and communicate with the tower body. The first vertical pipe and the second vertical pipe communicate with each other. Inner sealed vertical pipes are fixedly clamped inside both the first vertical pipe and the second vertical pipe. Two packing vertical pipes are movably clamped in the packing cross-frame. One of the packing vertical pipes is vertically corresponding to the first vertical pipe and the second vertical pipe. At the top end of the packing vertical pipe, a top ring frame is detachably clamped. At the bottom end of the packing vertical pipe, a bottom ring frame is movably clamped. On the upper surface of the top ring frame in one of the packing vertical pipes, it contacts the lower surface of the inner sealed vertical pipe corresponding to the top position. On the lower surface of the bottom ring frame in one of the packing vertical pipes, it contacts the upper surface of the inner sealed vertical pipe corresponding to the bottom position. A liquid distribution top pressing plate is fixedly installed in the top ring frame. A bottom supporting plate is fixedly installed in the bottom ring frame. Connecting cross-frames are fixedly installed at the top and bottom of both packing vertical pipes. The connecting cross-frames are respectively slidably clamped at the top and bottom of the packing cross-frame. Bottom grooves are respectively opened at both sides of the bottom end of the packing cross-frame. Top grooves are respectively opened at both sides of the top end of the packing cross-frame. Bottom supporting seats are movably clamped in the bottom grooves. The upper surface of the bottom supporting seat contacts the lower surface of the corresponding bottom ring frame. Top sealing covers are detachably clamped in the top grooves.

[0007] Preferably, a plurality of smoke dividing arc plates are integrally formed at the top end of the bottom supporting plate. A plurality of evenly distributed smoke dividing through grooves are opened on the smoke dividing arc plates.

[0008] Preferably, side frame covers are fixedly installed at both ends of the packing cross-frame. Telescopic cylinders are fixedly installed at the four corners of the side frame covers. The driving ends of the telescopic cylinders all extend into the packing cross-frame. Mounting seats are fixedly installed at the driving ends of the telescopic cylinders. The mounting seats are fixedly installed on the corresponding connecting cross-frames.

[0009] Preferably, the material changing mechanism includes a plurality of connecting vertical frames. The plurality of connecting vertical frames are fixedly installed on the bottom ring bracket. Top ring brackets are fixedly installed at the top ends of the plurality of connecting vertical frames. A plurality of lifting screw rods are rotatably installed between the top ring bracket and the bottom ring bracket. An elevating ring frame corresponding to the packing mechanism is arranged between the top ring bracket and the bottom ring bracket. The elevating ring frame is threadedly installed outside the plurality of lifting screw rods. A rotating ring seat is rotatably clamped in the elevating ring frame. The second vertical pipe penetrates through the rotating ring seat. Symmetrically distributed two groups of mounting bases are fixedly installed at the top end of the rotating ring seat. The bottom supporting seat is fixedly installed at the top end of the corresponding mounting base.

[0010] Preferably, a first gear is provided on one side of the lifting ring frame. A first longitudinal shaft is fixedly installed in the middle of the first gear. The first longitudinal shaft is rotatably installed on the lifting ring frame. A first toothed ring for cooperating with the first gear is provided at the bottom of the rotating ring seat. The first gear and the first toothed ring are meshed and connected. A first motor is fixedly installed on one side of the bottom end of the lifting ring frame close to the first gear. The driving end of the first motor is fixedly installed at the bottom end of the first longitudinal shaft.

[0011] Preferably, second gears are fixedly installed at the tops of the lifting screw rods. A second toothed ring is meshed between the plurality of second gears. A rotating clamping ring is integrally formed in the middle of the second toothed ring. The rotating clamping ring is rotatably clamped in the middle of the top ring support. A third gear is provided on one side of the top ring support. The third gear is meshed with the outer side of the second toothed ring. A second longitudinal shaft is fixedly installed in the middle of the third gear. The second longitudinal shaft is rotatably installed on one side of the top ring support. A second motor is fixedly installed on one side of the bottom end of the top ring support close to the third gear. The driving end of the second motor is fixedly installed at the bottom end of the second longitudinal shaft.

[0012] Preferably, the liquid separating member includes an outer ring frame. A middle ring frame is provided in the middle of the outer ring frame. An inner ring frame is provided in the middle of the middle ring frame. The outer ring frame, the middle ring frame and the inner ring frame are concentrically arranged. A connecting main pipe is integrally formed between the outer ring frame, the middle ring frame and the inner ring frame. One end of the connecting main pipe is fixedly clamped at the inner end of the liquid inlet pipe orifice. A plurality of evenly distributed liquid discharge through grooves are opened at the bottom ends of the outer ring frame, the middle ring frame and the inner ring frame.

[0013] Preferably, a liquid discharge pipe orifice is fixedly installed at the bottom of the tower body. A material control valve is fixedly installed on the liquid discharge pipe orifice. The air inlet pipe orifice is located above the liquid discharge pipe orifice.

[0014] Preferably, an exhaust pipe orifice is fixedly installed at the top end of the tower body.

[0015] Compared with the prior art, the beneficial effects of the present invention are as follows:

[0016] 1. By providing a packing mechanism and cooperating with a material changing mechanism, the flue gas can be desulfurized and denitrified and purified, and the packing can be quickly disassembled and replaced, without affecting the desulfurization and denitrification purification of the flue gas by the packing tower, thereby improving the use effect of the entire packing tower.

[0017] 2. By providing a packing mechanism and cooperating with a liquid separating member, the chemical agent is effectively and evenly distributed, and the flue gas can be effectively and evenly distributed, enabling the flue gas and the chemical agent to have a chemical reaction in contact with an effective area, improving the effect of flue gas desulfurization and denitrification purification. BRIEF DESCRIPTION OF THE DRAWINGS

[0018] To more clearly illustrate the technical solutions in the embodiments of the present invention or the prior art, the following will briefly introduce the drawings required for the description of the embodiments or the prior art. Obviously, the drawings in the following description are only some embodiments of the present invention. For those of ordinary skill in the art, without creative efforts, other drawings can also be obtained based on these drawings.

[0019] Figure 1 It is a schematic structural diagram of the present invention.

[0020] Figure 2 It is a schematic structural connection diagram of the tower body and the packing mechanism in the present invention.

[0021] Figure 3 It is a schematic structural diagram of the packing mechanism in the present invention.

[0022] Figure 4 For the present invention Figure 3 An enlarged view of part A.

[0023] Figure 5 It is a schematic structural diagram of the longitudinal packing tube in the present invention.

[0024] Figure 6 It is a schematic structural diagram of the material changing mechanism in the present invention.

[0025] Figure 7 For the present invention Figure 6 An enlarged view of part B.

[0026] Figure 8 It is a schematic structural diagram of the liquid distribution part in the present invention.

[0027] In the figure: 1. Support chassis; 11. Bottom ring support; 12. Connecting inner frame; 2. Tower body; 21. Air inlet pipe opening; 22. Liquid inlet pipe opening; 23. Liquid discharge pipe opening; 231. Material control valve; 24. Exhaust pipe opening; 25. Liquid separation part; 251. Outer ring frame; 252. Middle ring frame; 253. Inner ring frame; 254. Connecting main pipe; 201. Liquid discharge through groove; 3. Packing mechanism; 4. Material changing mechanism; 31. Packing cross frame; 311. First longitudinal pipe; 312. Second longitudinal pipe; 313. Inner sealed longitudinal pipe; 32. Packing longitudinal pipe; 321. Top ring support; 3211. Liquid top pressing plate; 322. Bottom ring support; 3221. Bottom support plate; 3222. Smoke dividing arc plate; 3223. Smoke dividing through groove; 33. Connecting cross frame; 34. Side frame cover; 341. Telescopic cylinder; 342. Mounting seat; 301. Bottom groove; 3011. Bottom support seat; 302. Top groove; 3021. Top sealing cover; 41. Connecting longitudinal frame; 42. Top ring support; 43. Lifting screw; 431. Second gear; 432. Second toothed ring; 433. Rotating clamping ring; 434. Third gear; 435. Second longitudinal axis; 436. Second motor; 44. Lifting ring frame; 45. Rotating ring seat; 451. Mounting base; 46. First gear; 461. First longitudinal axis; 462. First toothed ring; 463. First motor. Detailed implementation manners

[0028] Next, the technical solutions in the embodiments of the present invention will be clearly and completely described in conjunction with the accompanying drawings in the embodiments of the present invention. Obviously, the described embodiments are only a part of the embodiments of the present invention, rather than all the embodiments. Based on the embodiments of the present invention, all other embodiments obtained by those of ordinary skill in the art without creative efforts shall fall within the protection scope of the present invention.

[0029] Embodiment: As Figure 1-8 shown, the present invention provides a packing tower for flue gas desulfurization and denitrification purification treatment, including a support chassis 1. A bottom ring support 11 is fixedly installed at the top end of the support chassis 1. A connecting inner frame 12 is fixedly installed inside the bottom ring support 11. A tower body 2 is fixedly installed in the middle of the connecting inner frame 12. An air inlet pipe opening 21 is fixedly installed at the bottom of the tower body 2. During use, the flue gas to be purified is introduced into the tower body 2 from the bottom through the air inlet pipe opening 21. A liquid inlet pipe opening 22 is fixedly installed at the top of the tower body 2. A liquid separation part 25 is fixedly installed at the inner end of the liquid inlet pipe opening 22;

[0030] The liquid separation part 25 includes an outer ring frame 251. A middle ring frame 252 is provided in the middle of the outer ring frame 251. An inner ring frame 253 is provided in the middle of the middle ring frame 252. The outer ring frame 251, the middle ring frame 252 and the inner ring frame 253 are concentrically arranged. A connecting main pipe 254 is integrally formed between the outer ring frame 251, the middle ring frame 252 and the inner ring frame 253. One end of the connecting main pipe 254 is fixedly clamped at the inner end of the liquid inlet pipe orifice 22. A plurality of evenly distributed liquid discharge through grooves 201 are formed at the bottom ends of the outer ring frame 251, the middle ring frame 252 and the inner ring frame 253. The chemical agent for desulfurization and denitrification enters the top of the tower body 2 through the liquid inlet pipe orifice 22 and is introduced into the outer ring frame 251, the middle ring frame 252 and the inner ring frame 253 through the connecting main pipe 254. Subsequently, it is evenly discharged into the tower body 2 through the plurality of liquid discharge through grooves 201, and then evenly introduced into the packing mechanism 3;

[0031] A liquid discharge pipe orifice 23 is fixedly installed at the bottom of the tower body 2. A material control valve 231 is fixedly installed on the liquid discharge pipe orifice 23. The air inlet pipe orifice 21 is located above the liquid discharge pipe orifice 23; An exhaust pipe orifice 24 is fixedly installed at the top end of the tower body 2. After the flue gas is purified by the plurality of packing mechanisms 3, it is discharged through the exhaust pipe orifice 24. The chemical agent flows to the bottom of the tower body 2, and by opening the material control valve 231, the chemical agent is discharged through the liquid discharge pipe orifice 23;

[0032] A plurality of evenly distributed packing mechanisms 3 are provided between the air inlet pipe orifice 21 and the liquid inlet pipe orifice 22. The plurality of packing mechanisms 3 are installed on the tower body 2. A material changing mechanism 4 is provided between the bottom ring support 11 and the plurality of packing mechanisms 3.

[0033] The packing mechanism 3 includes a packing horizontal frame 31. A first vertical pipe 311 is fixedly installed in the middle of the top end of the packing horizontal frame 31. A second vertical pipe 312 is fixedly installed in the middle of the bottom end of the packing horizontal frame 31. The first vertical pipe 311 and the second vertical pipe 312 are fixedly installed on the tower body 2 and communicate with the tower body 2. The first vertical pipe 311 and the second vertical pipe 312 communicate with each other;

[0034] On the inner sides of the first vertical pipe 311 and the second vertical pipe 312, an inner sealed vertical pipe 313 is fixedly clamped. Two packing vertical pipes 32 are movably clamped in the packing cross frame 31. One of the packing vertical pipes 32 is vertically corresponding to the first vertical pipe 311 and the second vertical pipe 312. At the top of the packing vertical pipe 32, a top ring frame 321 is detachably clamped, which is convenient for the disassembly of the top ring frame 321. At the bottom of the packing vertical pipe 32, a bottom ring frame 322 is movably clamped. On the upper surface of the top ring frame 321 in one of the packing vertical pipes 32, it contacts the lower surface of the inner sealed vertical pipe 313 at the corresponding top position. On the lower surface of the bottom ring frame 322 in one of the packing vertical pipes 32, it contacts the upper surface of the inner sealed vertical pipe 313 at the corresponding bottom position, so as to realize the sealed connection between the first vertical pipe 311 and the second vertical pipe 312 and one of the packing vertical pipes 32, preventing flue gas leakage. In the top ring frame 321, a liquid distribution top pressing plate 3211 is fixedly installed. In the bottom ring frame 322, a bottom support plate 3221 is fixedly installed. At the top end of the bottom support plate 3221, a plurality of smoke distribution arc plates 3222 are integrally formed. A plurality of evenly distributed smoke distribution through slots 3223 are formed on the smoke distribution arc plates 3222. A packing is installed between the liquid distribution top pressing plate 3211 and the bottom support plate 3221. When the uniformly discharged chemical agent passes through the packing mechanism 3 from top to bottom, it will be evenly distributed again through the liquid distribution top pressing plate 3211, and then evenly introduced into the corresponding packing vertical pipe 32, forming a thin film through the packing, increasing the contact area between the flue gas and the chemical agent. When the flue gas passes through the packing mechanism 3 from bottom to top, it will be evenly distributed through the plurality of smoke distribution through slots 3223 on the plurality of smoke distribution arc plates 3222, so that the flue gas is evenly introduced into the packing vertical pipe 32 to carry out contact chemical reaction with the chemical agent in an effective area, improving the effect of flue gas desulfurization and denitrification purification treatment;

[0035] At the top and bottom of the two packing vertical pipes 32, connection cross frames 33 are fixedly installed respectively. The connection cross frames 33 are respectively slidably clamped at the top and bottom of the packing cross frame 31. At both ends of the packing cross frame 31, side frame covers 34 are fixedly installed. At the four corners of the side frame covers 34, telescopic cylinders 341 are fixedly installed respectively. The driving ends of the telescopic cylinders 341 all extend into the packing cross frame 31. The driving ends of the telescopic cylinders 341 are all fixedly installed with mounting seats 342. The mounting seats 342 are fixedly installed on the corresponding connection cross frames 33. By controlling the opening of the telescopic cylinders 341 to drive the packing cross frame 31 to horizontally slide in the connection cross frames 33, the two packing vertical pipes 32 are controlled to horizontally slide in the connection cross frames 33, flexibly adjusting the positions of the two packing vertical pipes 32 on both sides, facilitating the subsequent disassembly and replacement of the packing in one of the packing vertical pipes 32 without affecting the use of the packing in the other packing vertical pipe 32.

[0036] Both sides of the bottom end of the packing horizontal frame 31 are provided with bottom grooves 301, and both sides of the top end of the packing horizontal frame 31 are provided with top grooves 302. A bottom support seat 3011 is movably clamped in the bottom groove 301, facilitating the downward movement of the bottom support seat 3011 to disengage from the bottom groove 301. The upper surface of the bottom support seat 3011 contacts the lower surface of the corresponding bottom ring frame 322. A top sealing cover 3021 is detachably clamped in the top groove 302, facilitating the removal of the top sealing cover 3021.

[0037] The material changing mechanism 4 includes a plurality of connecting vertical frames 41. The plurality of connecting vertical frames 41 are fixedly installed on the bottom ring support 11. The top ends of the plurality of connecting vertical frames 41 are fixedly installed with a top ring support 42. A plurality of lifting screws 43 are rotatably installed between the top ring support 42 and the bottom ring support 11. An elevating ring frame 44 corresponding to the packing mechanism 3 is arranged between the top ring support 42 and the bottom ring support 11. The elevating ring frame 44 is threadedly installed on the outer sides of the plurality of lifting screws 43. A rotating ring seat 45 is rotatably clamped in the elevating ring frame 44. The second vertical pipe 312 passes through the rotating ring seat 45. The top end of the rotating ring seat 45 is fixedly installed with two groups of symmetrically distributed mounting bases 451. The bottom support seat 3011 is fixedly installed on the top end of the corresponding mounting base 451. By driving the synchronous rotation of the plurality of lifting screws 43, the plurality of elevating ring frames 44 are driven to synchronously descend, thereby controlling the synchronous descent of the bottom support seats 3011 in the plurality of packing mechanisms 3, so that the bottom ring frames 322 and bottom support plates 3221 at the positions of the corresponding packing vertical pipes 32 in the plurality of packing mechanisms 3 automatically descend, and the packing follows the descent of the bottom ring frames 322 and bottom support plates 3221 to disengage from the packing mechanism 3 for automatic disassembly of the packing, facilitating the subsequent replacement of the packing;

[0038] On one side of the lifting ring frame 44, there is a first gear 46. In the middle of the first gear 46, a first longitudinal shaft 461 is fixedly installed. The first longitudinal shaft 461 is rotatably installed on the lifting ring frame 44. At the bottom of the rotating ring seat 45, there is a first toothed ring 462 that cooperates with the first gear 46. The first gear 46 and the first toothed ring 462 are meshed and connected. On one side of the bottom end of the lifting ring frame 44 near the first gear 46, a first motor 463 is fixedly installed. The driving end of the first motor 463 is fixedly installed with the bottom end of the first longitudinal shaft 461. After the packing is automatically disassembled, control the first motor 463 to start, drive the first longitudinal shaft 461 to drive the first gear 46 to drive the first toothed ring 462 to rotate, so as to control the rotating ring seat 45 to rotate horizontally in the lifting ring frame 44, making the old packing and the packing mechanism 3 out of position, facilitating the unloading of the packing from the bottom support plate 3221 to the feeding mechanism 4, and installing the new packing on the bottom support plate 3221 for the installation of the new packing. After the installation of the new packing is completed, control the first motor 463 to start again, drive the first longitudinal shaft 461 to drive the first gear 46 to drive the first toothed ring 462 to rotate in the reverse direction to reset, so as to control the rotating ring seat 45 to rotate horizontally in the reverse direction in the lifting ring frame 44 to reset, making the new packing correspond to the packing mechanism 3. Subsequently, drive the plurality of lifting screws 43 to rotate synchronously in the reverse direction again, drive the plurality of lifting ring frames 44 to move up synchronously, so as to control the bottom support seats 3011 in the plurality of packing mechanisms 3 and the new packing to move up synchronously, making the new packing reinstalled in the corresponding packing longitudinal pipe 32 for the subsequent direct replacement use of the new packing, thereby realizing the rapid disassembly and replacement of the packing, and not affecting the desulfurization and denitrification purification treatment of the flue gas by the packing tower, thus improving the use effect of the entire packing tower.

[0039] At the top of each of the lifting screws 43, a second gear 431 is fixedly installed. A second toothed ring 432 is meshed between the plurality of second gears 431. In the middle of the second toothed ring 432, a rotating clamping ring 433 is integrally formed. The rotating clamping ring 433 is rotatably clamped in the middle of the top ring support 42. On one side of the top ring support 42, there is a third gear 434. The third gear 434 is meshed with the outer side of the second toothed ring 432. In the middle of the third gear 434, a second longitudinal shaft 435 is fixedly installed. The second longitudinal shaft 435 is rotatably installed on one side of the top ring support 42. On one side of the bottom end of the top ring support 42 near the third gear 434, a second motor 436 is fixedly installed. The driving end of the second motor 436 is fixedly installed with the bottom end of the second longitudinal shaft 435. During use, control the second motor 436 to start, drive the second longitudinal shaft 435 to drive the third gear 434 to drive the second toothed ring 432 to rotate, so as to drive the plurality of second gears 431 to rotate, and further control the plurality of lifting screws 43 to rotate synchronously.

[0040] Working principle: When in use, the flue gas to be purified is introduced into the tower body 2 from the bottom through the air inlet pipe orifice 21. The chemical agent for desulfurization and denitrification enters the top of the tower body 2 through the liquid inlet pipe orifice 22 and is introduced into the outer ring frame 251, the middle ring frame 252 and the inner ring frame 253 through the connecting main pipe 254. Subsequently, it is evenly discharged into the tower body 2 through a plurality of liquid drainage through grooves 201. A filler is installed between the liquid separation top pressing plate 3211 and the bottom support plate 3221;

[0041] When the uniformly discharged chemical agent passes through the filler mechanism 3 from top to bottom, it will be evenly distributed again through the liquid separation top pressing plate 3211, and then evenly introduced into the corresponding filler vertical pipes 32. After passing through the filler, a film is formed to increase the contact area between the flue gas and the chemical agent. When the flue gas passes through the filler mechanism 3 from bottom to top, it will be evenly distributed through a plurality of smoke separation arc plates 3222 and a plurality of smoke separation through grooves 3223 on the plurality of smoke separation arc plates 3222, so that the flue gas is evenly introduced into the filler vertical pipes 32 to carry out contact chemical reactions with the chemical agent in an effective area, improving the purification effect of flue gas desulfurization and denitrification;

[0042] After the flue gas is purified through a plurality of filler mechanisms 3, it is discharged through the exhaust pipe orifice 24. The chemical agent flows to the bottom of the tower body 2, and by opening the material control valve 231, the chemical agent is discharged through the liquid discharge pipe orifice 23;

[0043] When the filler in the packed tower needs to be disassembled and replaced after being used for a period of time, only need to control the telescopic cylinder 341 to drive the filler cross frame 31 to slide horizontally in the connecting cross frame 33, so as to control the two filler vertical pipes 32 to slide horizontally in the connecting cross frame 33, and move another filler vertical pipe 32 with new filler between the first vertical pipe 311 and the second vertical pipe 312 for rapid disassembly and replacement of the new filler, and it will not affect the desulfurization and denitrification purification of the flue gas by the packed tower, thus improving the use effect of the whole packed tower;

[0044] At this time, the filler vertical pipe 32 with the old filler is moved to the position of one of the bottom grooves 301;

[0045] Subsequently, control the second motor 436 to drive the second vertical shaft 435 to drive the third gear 434 to drive the second toothed ring 432 to rotate, so as to drive a plurality of second gears 431 to rotate, and then control a plurality of lifting screws 43 to rotate synchronously, drive a plurality of lifting ring frames 44 to descend synchronously, so as to control the bottom support seats 3011 in a plurality of filler mechanisms 3 to descend synchronously, so that the bottom ring frames 322 and the bottom support plates 3221 at the positions of the corresponding filler vertical pipes 32 in a plurality of filler mechanisms 3 automatically descend, and the filler follows the bottom ring frames 322 and the bottom support plates 3221 to descend and detach from the filler mechanism 3 for automatic disassembly of the filler;

[0046] After the packing is automatically disassembled, control the first motor 463 to start, drive the first longitudinal shaft 461 to drive the first gear 46 to drive the first toothed ring 462 to rotate, so as to control the horizontal rotation of the rotating ring seat 45 in the lifting ring frame 44, misalign the old packing and the packing mechanism 3, facilitate the removal of the packing from the bottom support plate 3221 and replace it with the packing mechanism 4, and install the new packing on the bottom support plate 3221 for the installation of the new packing. After the installation of the new packing is completed, control the first motor 463 to start again, drive the first longitudinal shaft 461 to drive the first gear 46 to drive the first toothed ring 462 to rotate in the reverse direction to reset, so as to control the horizontal reverse rotation and reset of the rotating ring seat 45 in the lifting ring frame 44, make the new packing correspond to the packing mechanism 3. Subsequently, drive the plurality of lifting screws 43 to rotate synchronously in the reverse direction again, drive the plurality of lifting ring frames 44 to move up synchronously, so as to control the bottom support seats 3011 in the plurality of packing mechanisms 3 and the new packing to move up synchronously, and reinstall the new packing in the corresponding packing longitudinal tube 32 for the subsequent direct replacement and use of the new packing, thereby realizing the rapid disassembly and replacement of the packing, and not affecting the desulfurization and denitrification purification treatment of the flue gas by the packing tower, thus improving the use effect of the entire packing tower.

[0047] Although the embodiments of the present invention have been shown and described, those of ordinary skill in the art can understand that various changes, modifications, substitutions and variations can be made to these embodiments without departing from the principle and spirit of the present invention. The scope of the present invention is defined by the appended claims and their equivalents.

Claims

1. A flue gas desulfurization and denitrification purification treatment packed tower, comprising a supporting frame (1), characterized in that: A bottom ring bracket (11) is fixedly mounted on the top of the supporting bottom frame (1), a connecting inner frame (12) is fixedly mounted on the inner side of the bottom ring bracket (11), a tower body (2) is fixedly mounted in the middle of the connecting inner frame (12), an air inlet pipe opening (21) is fixedly mounted on the bottom of the tower body (2), a liquid inlet pipe opening (22) is fixedly mounted on the top of the tower body (2), a liquid separator (25) is fixedly mounted on the inner end of the liquid inlet pipe opening (22), a plurality of evenly distributed packing mechanisms (3) are arranged between the air inlet pipe opening (21) and the liquid inlet pipe opening (22), a plurality of the packing mechanisms (3) are mounted on the tower body (2), and a material replacement mechanism (4) is arranged between the bottom ring bracket (11) and the plurality of packing mechanisms (3); The packing mechanism (3) comprises a packing transverse frame (31), a first longitudinal tube (311) being fixedly mounted at the middle of the top end of the packing transverse frame (31), a second longitudinal tube (312) being fixedly mounted at the middle of the bottom end of the packing transverse frame (31), the first longitudinal tube (311) and the second longitudinal tube (312) being fixedly mounted on the tower body (2) and communicating with the tower body (2), the first longitudinal tube (311) and the second longitudinal tube (312) being communicated with each other, and the first longitudinal tube (311) and the second longitudinal tube (312) being fixedly mounted on the tower body (2) and communicating with each other. The inner sides of the filling transverse frame (312) are fixedly provided with an inner sealing longitudinal tube (313), the movable card in the filling transverse frame (31) is provided with two filling longitudinal tubes (32), one of the filling longitudinal tubes (32) vertically corresponds to the first longitudinal tube (311) and the second longitudinal tube (312), the top of the filling longitudinal tube (32) is detachably provided with a top ring frame (321), the bottom of the filling longitudinal tube (32) is movablely provided with a bottom ring frame (322), the top ring frame (321) in one of the filling longitudinal tubes (32) is detachably provided with a top ring frame (321), and the bottom of the filling longitudinal tube (32) is movablely provided with a bottom ring frame (322). The upper surface and the top position correspond to contact with the lower surface of the inner sealing longitudinal tube (313); the lower surface and the bottom position of the bottom ring frame (322) in one of the packing longitudinal tubes (32) correspond to contact with the upper surface of the inner sealing longitudinal tube (313); a liquid separation top pressure plate (3211) is fixedly installed in the top ring frame (321); a bottom support plate (3221) is fixedly installed in the bottom ring frame (322); a connecting horizontal frame (33) is fixedly installed on the top and bottom of the two packing longitudinal tubes (32); The connecting transverse frame (33) is respectively slidably connected to the top and bottom of the filling transverse frame (31); bottom grooves (301) are provided on both sides of the bottom end of the filling transverse frame (31); top grooves (302) are provided on both sides of the top end of the filling transverse frame (31); a bottom support seat (3011) is movably provided in the bottom groove (301); the upper surface of the bottom support seat (3011) contacts the lower surface of the corresponding bottom ring frame (322); and a top cover (3021) is detachably provided in the top groove (302); The material changing mechanism (4) comprises a plurality of connecting longitudinal frames (41), wherein the plurality of connecting longitudinal frames (41) are fixedly mounted on a bottom ring support (11), a top ring support (42) is fixedly mounted on the top ends of the plurality of connecting longitudinal frames (41), a plurality of lifting screws (43) are rotatably mounted between the top ring support (42) and the bottom ring support (11), a lifting ring frame (44) corresponding to the filling mechanism (3) is provided between the top ring support (42) and the bottom ring support (11), the lifting ring frame (44) is threadedly mounted on the outside of the plurality of lifting screws (43), a rotating ring seat (45) is rotatably clamped in the lifting ring frame (44), the second longitudinal tube (312) passes through the rotating ring seat (45), two groups of symmetrically distributed mounting bases (451) are fixedly mounted on the top ends of the rotating ring seats (451), and the bottom support seat (3011) is fixedly mounted on the top ends of the corresponding mounting bases (451).

2. A flue gas desulfurization and denitrification purification treatment packed tower according to claim 1, characterized in that: A plurality of smoke arc separation plates (3222) are integrally formed on the top end of the bottom support plate (3221), and a plurality of smoke arc separation grooves (3223) are evenly distributed on the smoke arc separation plates (3222).

3. A flue gas desulfurization and denitrification purification treatment packed tower according to claim 1, characterized in that: Side frame covers (34) are fixedly mounted on both ends of the filling transverse frame (31), telescopic cylinders (341) are fixedly mounted at four corners of the side frame cover (34), driving ends of the telescopic cylinders (341) extend into the filling transverse frame (31), and mounting seats (342) are fixedly mounted on the driving ends of the telescopic cylinders (341), and the mounting seats (342) are fixedly mounted on the corresponding connecting transverse frame (33).

4. A flue gas desulfurization and denitrification purification treatment packed tower according to claim 1, characterized in that: A first gear (46) is provided on one side of the lifting ring frame (44); a first longitudinal axis (461) is fixedly mounted in the middle of the first gear (46); the first longitudinal axis (461) is rotatably mounted on the lifting ring frame (44); a first gear ring (462) for use with the first gear (46) is provided at the bottom of the rotating ring seat (45); the first gear (46) and the first gear ring (462) are meshingly connected; a first motor (463) is fixedly mounted on one side of the bottom end of the lifting ring frame (44) close to the first gear (46); and a driving end of the first motor (463) is fixedly mounted on the bottom end of the first longitudinal axis (461).

5. A flue gas desulfurization and denitrification purification treatment packed tower according to claim 1, characterized in that: A second gear (431) is fixedly mounted on the top of each of the lifting screw rods (43), and a second gear ring (432) is meshedly connected between the plurality of second gears (431). A rotating snap ring (433) is integrally formed in the middle of the second gear ring (432), and the rotating snap ring (433) is rotatably clamped in the middle of the top ring bracket (42). A third gear (434) is provided on one side of the top ring bracket (42), and the third gear (434) is meshedly connected to the outer side of the second gear ring (432). A second longitudinal axis (435) is fixedly mounted in the middle of the third gear (434), and the second longitudinal axis (435) is rotatably mounted on one side of the top ring bracket (42). A second motor (436) is fixedly mounted on the side of the bottom end of the top ring bracket (42) close to the third gear (434), and a driving end of the second motor (436) is fixedly mounted on the bottom end of the second longitudinal axis (435).

6. A flue gas desulfurization and denitrification purification treatment packed tower according to claim 1, characterized in that: The liquid separation member (25) comprises an outer ring frame (251), a middle ring frame (252) is provided in the middle of the outer ring frame (251), an inner ring frame (253) is provided in the middle of the middle ring frame (252), the outer ring frame (251), the middle ring frame (252) and the inner ring frame (253) are arranged concentrically, a connecting main pipe (254) is integrally formed between the outer ring frame (251), the middle ring frame (252) and the inner ring frame (253), one end of the connecting main pipe (254) is fixedly clamped on the inner end of the liquid inlet pipe port (22), and a plurality of evenly distributed liquid drainage grooves (201) are provided at the bottom ends of the outer ring frame (251), the middle ring frame (252) and the inner ring frame (253).

7. The flue gas desulfurization and denitrification purification treatment packed tower according to claim 1, characterized in that: A liquid discharge pipe opening (23) is fixedly mounted at the bottom of the tower body (2), a material control valve (231) is fixedly mounted on the liquid discharge pipe opening (23), and the air inlet pipe opening (21) is located above the liquid discharge pipe opening (23).

8. The flue gas desulfurization and denitrification purification packed tower according to claim 1, characterized in that: An exhaust pipe opening (24) is fixedly mounted on the top of the tower body (2).

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