CN114191972A - Fish scale-shaped stacked rain curtain type desulfurization spray tower and working method thereof - Google Patents
Fish scale-shaped stacked rain curtain type desulfurization spray tower and working method thereof Download PDFInfo
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- CN114191972A CN114191972A CN202111317767.3A CN202111317767A CN114191972A CN 114191972 A CN114191972 A CN 114191972A CN 202111317767 A CN202111317767 A CN 202111317767A CN 114191972 A CN114191972 A CN 114191972A
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- B—PERFORMING OPERATIONS; TRANSPORTING
- B01—PHYSICAL OR CHEMICAL PROCESSES OR APPARATUS IN GENERAL
- B01D—SEPARATION
- B01D53/00—Separation of gases or vapours; Recovering vapours of volatile solvents from gases; Chemical or biological purification of waste gases, e.g. engine exhaust gases, smoke, fumes, flue gases, aerosols
- B01D53/34—Chemical or biological purification of waste gases
- B01D53/74—General processes for purification of waste gases; Apparatus or devices specially adapted therefor
- B01D53/77—Liquid phase processes
- B01D53/79—Injecting reactants
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- B—PERFORMING OPERATIONS; TRANSPORTING
- B01—PHYSICAL OR CHEMICAL PROCESSES OR APPARATUS IN GENERAL
- B01D—SEPARATION
- B01D53/00—Separation of gases or vapours; Recovering vapours of volatile solvents from gases; Chemical or biological purification of waste gases, e.g. engine exhaust gases, smoke, fumes, flue gases, aerosols
- B01D53/34—Chemical or biological purification of waste gases
- B01D53/46—Removing components of defined structure
- B01D53/48—Sulfur compounds
- B01D53/50—Sulfur oxides
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- B—PERFORMING OPERATIONS; TRANSPORTING
- B01—PHYSICAL OR CHEMICAL PROCESSES OR APPARATUS IN GENERAL
- B01D—SEPARATION
- B01D2247/00—Details relating to the separation of dispersed particles from gases, air or vapours by liquid as separating agent
- B01D2247/10—Means for removing the washing fluid dispersed in the gas or vapours
- B01D2247/107—Means for removing the washing fluid dispersed in the gas or vapours using an unstructured demister, e.g. a wire mesh demister
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- B—PERFORMING OPERATIONS; TRANSPORTING
- B01—PHYSICAL OR CHEMICAL PROCESSES OR APPARATUS IN GENERAL
- B01D—SEPARATION
- B01D2258/00—Sources of waste gases
- B01D2258/02—Other waste gases
- B01D2258/0283—Flue gases
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Abstract
The invention discloses a fish scale-shaped laminated rain curtain type desulfurization spray tower and a working method thereof. According to the fish scale-shaped stacked rain curtain type desulfurization spray tower, flue gas is purified and filtered for the first time by the primary waste gas spray unit, then the flue gas enters the spray tower tank body and flows upwards from the bottommost of the spray tower tank body, the flue gas can be continuously contacted with spray liquid in the process of flowing from bottom to top, the speed of the flue gas reaching the topmost end of the spray tower tank body is reduced, then the flue gas is discharged from the gas outlet pipe, and the flue gas is purified and filtered doubly, so that the desulfurization is more thorough.
Description
Technical Field
The invention belongs to the technical field of industrial harmful waste gas control, and particularly relates to a fish scale-shaped laminated rain curtain type desulfurization spray tower. The invention also relates to a working method of the fish scale-shaped laminated rain curtain type desulfurization spray tower.
Background
At present, various industrial boilers and kilns in China all work by burning fuel mainly containing coal, a large amount of waste gas containing sulfur dioxide and smoke dust is generated in the process, and the waste gas is directly discharged into the atmosphere to cause serious environmental pollution problems, such as acid rain, haze weather and the like. With the increasing emphasis of the country and the public on the environmental protection problem, the emission standard of the polluted waste gas and the execution strength thereof are more and more strict.
At present, a spray tower is generally used in the gas desulfurization process, and the spray tower has less components in the tower, is not easy to scale and block desulfurization equipment, has smaller pressure loss and simpler and more convenient operation and maintenance, and is fully applied to home and abroad desulfurization devices.
However, the slurry in the spray system in the existing desulfurization spray tower can not be fully contacted with the flue gas, so that the desulfurization efficiency is low. The main reasons are that the spraying density of the spraying tower is uneven, the coverage of the nozzle slurry is insufficient, so that the contact between the flue gas and the circulating slurry along the tower wall is poor, the flue gas on the tower wall is not fully absorbed, the escape phenomenon is generated, and the desulfurization efficiency of the system is reduced.
Disclosure of Invention
The purpose of the invention is as follows: in order to overcome the defects, the invention aims to provide a fish scale-shaped stacked rain curtain type desulfurization spray tower, which solves the problems that most spray towers in the prior art adopt a vertical downward spraying mode, the contact between flue gas and fog liquid is insufficient, the flue gas is easy to escape and the like due to large particle size of sprayed liquid drops.
The technical scheme is as follows: a fish scale-shaped stacked rain curtain type desulfurization spray tower comprises a spray tower tank body, an air inlet pipe, an air outlet pipe, a primary waste gas spray unit, a rain curtain type spray unit, a spray liquid storage tank, a temporary spray liquid storage tank, a demister and a spray liquid recovery tank, wherein the spray tower tank body is vertically arranged in a cylindrical shape, the spray liquid recovery tank is arranged at the lower end part of the spray tower tank body and is communicated with the spray liquid storage tank, the air inlet pipe is in a right-angle bent pipe shape, one end of the air inlet pipe is fixedly connected with the outer wall of the lower end part of the spray tower tank body, the air inlet pipe is communicated with an internal spray cavity of the spray tower tank body, the air outlet pipe is arranged at the upper end part of the spray tower tank body and is communicated with the internal spray cavity of the spray tower tank body, the primary waste gas spray unit is arranged in the vertical section of the air inlet pipe, and the rain curtain type spray unit is arranged in the spray tower tank body, the spray liquid temporary storage box is arranged in the spray tower tank body, the spray liquid temporary storage box is communicated with the rain curtain type spray unit, the demister is arranged at the upper end position of the inner portion of the spray tower tank body, a channel is arranged between the spray liquid temporary storage box and the spray tower tank body, smoke in the spray tower tank body can penetrate through the channel to enter the demister, a first spray liquid conveying pipe is arranged between the spray liquid storage box and the spray liquid temporary storage box, and a second spray liquid conveying pipe is arranged between the spray liquid storage box and the waste gas primary spray unit. According to the fish scale-shaped stacked rain curtain type desulfurization spray tower, after flue gas firstly enters the air inlet pipe, the flue gas is purified and filtered for the first time by the waste gas primary spray unit, then the flue gas enters the spray tower tank body and flows upwards from the bottommost of the spray tower tank body, the flue gas can be continuously contacted with spray liquid in the process of flowing from bottom to top, the speed of the flue gas reaching the topmost end of the spray tower tank body is reduced, then the flue gas is discharged from the air outlet pipe, and the flue gas is purified and filtered doubly, so that the desulfurization is more thorough.
Further, foretell range upon range of rain curtain formula desulfurization spray column of ichthyoid, the rain curtain formula sprays the unit and includes stand, flue gas delivery board and a set of nozzle two, the stand is fixed to be set up at the internal portion of spray column jar, the flue gas delivery board is the heliciform and sets up on the stand to the outward flange of flue gas delivery board and the inner wall fixed connection of the spray column jar body, be equipped with a set of nozzle two on the lower terminal surface of flue gas delivery board, form heliciform flue gas transfer passage between the inner wall of the flue gas delivery board and the spray column jar body, flue gas transfer passage's pitch increases gradually according to the order from supreme down, the inside of flue gas delivery board is the hollow tubular structure, the inside hollow tubular structure of flue gas delivery board and spray liquid hold in the case intercommunication.
Further, foretell range upon range of rain curtain formula desulfurization spray column of ichthyoid, the defroster includes cooling tube, a set of defogging board and defogging board mounting panel, the fixed setting of defogging board mounting panel is on the inner wall of the spray column jar body, a set of defogging board parallel arrangement to a set of defogging board sets up on the defogging board mounting panel, the cooling tube is between the form poling a set of defogging board of turning back, be equipped with the gap between a set of defogging board, the gap can be passed to the flue gas.
Further, foretell range upon range of rain curtain formula desulfurization spray column of fish scale form, the defogging board includes a set of isosceles trapezoid board body and a set of connecting plate, connect through the connecting plate between a set of isosceles trapezoid board body, a set of isosceles trapezoid board body is in on the same straight line, be equipped with a set of cooling reinforcing plate on the defogging board mounting panel, the cooling reinforcing plate is wavy setting.
Further, foretell range upon range of rain curtain formula desulfurization spray column of fish scale, the primary unit that sprays of waste gas includes nozzle support frame, nozzle installing module, sprays the supporting disk, sprays extension drive assembly and a set of nozzle one, the fixed setting of nozzle support frame is on the inner wall of intake pipe, it connects with the nozzle support frame to spray the supporting disk, be equipped with a set of nozzle one on the nozzle installing module, it sets up on the nozzle support frame to spray extension drive assembly and nozzle installing module and connect, nozzle installing module and the supporting disk sliding connection that sprays to nozzle installing module with spray extension drive assembly and connect, it can drive nozzle installing module and expand or shrink outward to spray extension drive assembly, a set of nozzle one and spray liquid delivery pipe two and connect.
Further, foretell fish scaly range upon range of rain curtain formula desulfurization spray column, nozzle installing module includes that a set of nozzle supports the slide bar, a set of nozzle supports the slide bar and uses the center of spraying the supporting disk to set up according to annular array's mode as the centre of a circle, all be equipped with a set of nozzle one on the nozzle supports the slide bar, the nozzle supports the slide bar and includes arc nozzle mounting panel, support slide plate, guide post and limiting plate, the arc nozzle mounting panel is fixed to be set up on the tip that the support slide plate keeps away from the center of spraying the supporting disk, the guide post is close to the one end fixed connection of spraying the supporting disk center tip with the support slide plate, the limiting plate is kept away from the tip fixed connection of support slide plate with the guide post, radially be equipped with a set of spout on the supporting disk, a set of spout and a set of nozzle support the slide bar one-to-one setting, the support slide plate sets up in the spout, and the supporting sliding plate can slide in the sliding groove, and the guide post is connected with the spraying expansion driving assembly.
Further, in the fish scale-shaped stacked rain curtain type desulfurization spray tower, the arc-shaped nozzle mounting plates of the group of nozzle support slide bars are positioned on the same circumference, gaps are formed between the arc-shaped nozzle mounting plates of the group of nozzle support slide bars, the diameter of the circumference where the arc-shaped nozzle mounting plates of the group of nozzle support slide bars are positioned is larger than that of the spray supporting disc, the group of first nozzles are arranged on the arc-shaped nozzle mounting plates, and the group of first nozzles on the arc-shaped nozzle mounting plates are arranged in an outward divergence manner.
Further, foretell range upon range of rain curtain formula desulfurization spray column of ichthyoid, it includes driving motor, action wheel and follows the driving wheel to spray the extension drive assembly, driving motor and follow the driving wheel and all set up on the nozzle support frame, driving motor's pivot and action wheel are connected, action wheel and follow driving wheel meshing, follow the center of driving wheel and spraying the supporting disk and be in on the same axis, the guide post with connect from the driving wheel.
Further, foretell range upon range of rain curtain formula desulfurization spray column of ichthyoid, be equipped with a set of direction drive groove from the driving wheel to a set of direction drive groove uses the center from the driving wheel to set up according to annular array's mode as the centre of a circle, a set of direction drive groove and a set of nozzle support slide bar one-to-one set up, the guide post sets up in the direction drive groove to the guide post can be followed the direction drive groove and removed, the direction drive groove is the arc wall, and the direction drive groove sets up along the radial bending from the driving wheel, the limiting plate is located the both sides from the driving wheel respectively with supporting the slide, the cross-section of limiting plate is circular to the diameter of limiting plate and the width that supports the slide all are greater than the width in direction drive groove.
The invention also provides a working method of the fish scale-shaped stacked rain curtain type desulfurization spray tower, which comprises the following steps:
s1, conveying the spray liquid in the spray liquid storage tank to the primary waste gas spray unit through a second spray liquid conveying pipe, and spraying the spray liquid by a group of second nozzles;
s2, starting the primary waste gas spraying unit, enabling the driving motor to rotate clockwise, enabling the driving motor to drive the driving wheel to rotate, enabling the driving wheel to drive the driven wheel to rotate, enabling the group of guide driving grooves on the driven wheel to rotate synchronously, enabling the driving guide columns in the guide driving grooves to move along the radian of the guide driving grooves, and accordingly pushing the supporting sliding plate to slide in the sliding grooves and enabling the arc-shaped nozzle mounting plate to expand outwards;
s3, the driving motor rotates anticlockwise, the driving motor drives the driving wheel to rotate, the driving wheel drives the driven wheel to rotate, and the group of guide driving grooves on the driven wheel rotate synchronously, so that the driving guide posts in the guide driving grooves move along the radian of the guide driving grooves, the supporting sliding plate is pulled to slide in the sliding grooves, and the arc-shaped nozzle mounting plate is retracted inwards;
s4, continuously repeating the steps S2-S3 by the spraying device, so that a group of nozzles on the same circumference continuously expand or contract;
s5, enabling the flue gas to enter from one end of the air inlet pipe, enabling the flue gas to flow to the position of the primary waste gas spraying unit to be in contact with spraying liquid sprayed by a group of first nozzles, and performing primary purification on the flue gas;
s6, conveying the spray liquid in the spray liquid storage tank into the spray liquid temporary storage tank through the first spray liquid conveying pipe;
s7, opening a valve body between the spray liquid temporary storage box and the smoke conveying plate, enabling the spray liquid in the spray liquid temporary storage box to flow into a hollow pipe in the smoke conveying plate, and spraying the spray liquid in the smoke conveying plate through a group of second nozzles;
s8, in the process of conveying the flue gas along the flue gas conveying channel, because the sectional area of the flue gas conveying channel is gradually increased, the conveying speed of the flue gas at the upper end in the flue gas conveying channel is not lower than that at the lower end of the flue gas conveying channel;
s9, enabling spray liquid sprayed by the group of second nozzles to fall on the outer wall of the flue gas conveying plate, fall into the spray liquid recovery box along the flue gas conveying plate, and flow into the spray liquid storage box;
s10, conveying the flue gas purified by the rain curtain type spraying unit into a demister;
s11, cooling liquid is filled into the cooling pipe, the demisting plates are cooled, and demisting of the flue gas is carried out when the flue gas after secondary purification passes through the gap;
and S12, discharging the demisted flue gas through an air outlet pipe.
The technical scheme shows that the invention has the following beneficial effects: according to the fish scale-shaped stacked rain curtain type desulfurization spray tower, the coverage rate of spray liquid reaches 150% through the arrangement of the two uniquely arranged spray units, namely the primary waste gas spray unit and the rain curtain type spray unit, the spray liquid can be fully contacted with flue gas, and the desulfurization efficiency of a system is improved; the design of a group of nozzles which can be contracted and expanded in the primary waste gas spraying unit enables the spraying liquid to continuously change the cross section where the spraying is located, so that the spraying liquid is directly contacted with the flue gas at different positions; the rain curtain type spraying unit adopts the spiral rain curtain type spraying arrangement, so that the gas-liquid contact area is increased in the flowing process of the flue gas along the spiral conveying channel, and the utilization rate of the desulfurizer and the removal rate of sulfur dioxide are greatly improved.
Drawings
Fig. 1 is a schematic structural diagram of a fish scale-shaped stacked rain curtain type desulfurization spray tower according to the present invention;
fig. 2 is a top view of a fish scale-shaped stacked rain curtain type desulfurization spray tower according to the present invention;
fig. 3 is a schematic structural view of a rain curtain type spray unit according to the present invention;
FIG. 4 is a schematic illustration of a demister in accordance with the present invention;
FIG. 5 is a front view of the primary flue gas spray unit of the present invention;
FIG. 6 is a top view of the primary flue gas spray unit of the present invention;
fig. 7 is a partial structural schematic diagram of the exhaust gas primary spray unit according to the present invention.
In the figure: the device comprises a spray tower tank body 1, an air inlet pipe 2, an air outlet pipe 3, a waste gas primary spray unit 4, a nozzle support frame 41, a nozzle installation module 42, a nozzle support slide rod 421, an arc-shaped nozzle installation plate 422, a support slide plate 423, a guide post 424, a limit plate 425, a gap 426, a spray support plate 43, a chute 431, a spray expansion drive assembly 44, a drive motor 441, a driving wheel 442, a driven wheel 443, a guide drive groove 444, a first nozzle 45, a curtain type spray unit 5, a stand column 51, a flue gas conveying plate 52, a second nozzle 53, a flue gas conveying channel 54, a spray liquid storage tank 6, a spray liquid temporary storage tank 7, a demister 8, a cooling pipe 81, a demisting plate 82, an isosceles trapezoid plate body 821, a connecting plate 822, a cooling reinforcing plate 823, a demisting plate installation plate 83, a gap 84, a spray liquid recovery tank 9, a first spray liquid conveying pipe 10 and a second spray liquid conveying pipe 20.
Detailed Description
Reference will now be made in detail to embodiments of the present invention, examples of which are illustrated in the accompanying drawings, wherein like or similar reference numerals refer to the same or similar elements or elements having the same or similar function throughout. The embodiments described below with reference to the drawings are illustrative and intended to be illustrative of the invention and are not to be construed as limiting the invention.
In the description of the present invention, it is to be understood that the terms "center", "longitudinal", "lateral", "length", "width", "thickness", "upper", "lower", "front", "rear", "left", "right", "vertical", "horizontal", "top", "bottom", "inner", "clockwise", "counterclockwise", and the like, indicate orientations and positional relationships based on those shown in the drawings, and are used only for convenience of description and simplicity of description, and do not indicate or imply that the device or element being referred to must have a particular orientation, be constructed and operated in a particular orientation, and thus, are not to be considered as limiting the present invention.
Furthermore, the terms "first", "second" and "first" are used for descriptive purposes only and are not to be construed as indicating or implying relative importance or implicitly indicating the number of technical features indicated. Thus, a feature defined as "first" or "second" may explicitly or implicitly include one or more of that feature. In the description of the present invention, unless otherwise specified, "a plurality" means two or more unless explicitly defined otherwise.
In the present invention, unless otherwise expressly specified or limited, the terms "mounted," "connected," "secured," and the like are to be construed broadly and can, for example, be fixedly connected, detachably connected, or integrally connected; can be mechanically or electrically connected; they may be connected directly or indirectly through intervening media, or they may be interconnected between two elements. The specific meanings of the above terms in the present invention can be understood by those skilled in the art according to specific situations.
In the present invention, unless otherwise expressly stated or limited, "above" or "below" a first feature means that the first and second features are in direct contact, or that the first and second features are not in direct contact but are in contact with each other via another feature therebetween. Also, the first feature being "on," "above" and "over" the second feature includes the first feature being directly on and obliquely above the second feature, or merely indicating that the first feature is at a higher level than the second feature. A first feature being "under," "below," and "beneath" a second feature includes the first feature being directly under and obliquely below the second feature, or simply meaning that the first feature is at a lesser elevation than the second feature.
Examples
The fish scale-shaped laminated rain curtain type desulfurization spray tower shown in fig. 1 and 2 comprises a spray tower tank body 1, an air inlet pipe 2, an air outlet pipe 3, a primary waste gas spray unit 4, a rain curtain type spray unit 5, a spray liquid storage tank 6, a temporary spray liquid storage tank 7, a demister 8 and a spray liquid recovery tank 9, wherein the spray tower tank body 1 is vertically arranged in a cylindrical shape, the spray liquid recovery tank 9 is arranged at the lower end part of the spray tower tank body 1, the spray liquid recovery tank 9 is communicated with the spray liquid storage tank 6, the air inlet pipe 2 is in a shape of a right-angled bent pipe, one end of the air inlet pipe 2 is fixedly connected with the outer wall of the lower end part of the spray tower tank body 1, the air inlet pipe 2 is communicated with the internal spray cavity of the spray tower tank body 1, the air outlet pipe 3 is arranged at the upper end part of the spray tower tank body 1, and the air outlet pipe 3 is communicated with the internal spray cavity of the spray tower tank body 1, the primary waste gas spraying unit 4 is arranged in the vertical section of the gas inlet pipe 2, the rain curtain type spraying unit 5 is arranged in the spraying tower tank body 1, the spraying liquid temporary storage tank 7 is communicated with the rain curtain type spraying unit 5, the demister 8 is arranged at the upper end position inside the spraying tower tank body 1, a channel is arranged between the spraying liquid temporary storage tank 7 and the spraying tower tank body 1, smoke in the spraying tower tank body 1 can penetrate through the channel to enter the demister 8, a first spraying liquid conveying pipe 10 is arranged between the spraying liquid storage tank 6 and the spraying liquid temporary storage tank 7, and a second spraying liquid conveying pipe 20 is arranged between the spraying liquid storage tank 6 and the primary waste gas spraying unit 4.
The rain curtain type spray unit 5 shown in fig. 3 comprises a column 51, a smoke conveying plate 52 and a group of second nozzles 53, wherein the column 51 is fixedly arranged inside the spray tower tank 1, the smoke conveying plate 52 is spirally arranged on the column 51, the outer edge of the smoke conveying plate 52 is fixedly connected with the inner wall of the spray tower tank 1, the group of second nozzles 53 are arranged on the lower end surface of the smoke conveying plate 52, a spiral smoke conveying channel 54 is formed between the smoke conveying plate 52 and the inner wall of the spray tower tank 1, the pitch of the smoke conveying channel 54 is gradually increased according to the sequence from bottom to top, the inside of the smoke conveying plate 52 is of a hollow tubular structure, and the hollow tubular structure inside the smoke conveying plate 52 is communicated with the spray liquid temporary storage tank 7.
The demister 8 shown in fig. 4 comprises a cooling pipe 81, a set of demisting plates 82 and demisting plate mounting plates 83, the demisting plate mounting plates 83 are fixedly arranged on the inner wall of the spray tower tank body 1, the set of demisting plates 82 are arranged in parallel, the set of demisting plates 82 are arranged on the demisting plate mounting plates 83, the cooling pipe 81 is folded back and penetrates through the set of demisting plates 82, gaps 84 are arranged between the set of demisting plates 82, and the flue gas can pass through the gaps 84. Defogging board 82 includes a set of isosceles trapezoid board body 821 and a set of connecting plate 822, connect through connecting plate 822 between a set of isosceles trapezoid board body 821, a set of isosceles trapezoid board body 821 is in on the same straight line, be equipped with a set of cooling reinforcing plate 823 on the defogging board mounting panel 83, cooling reinforcing plate 823 is the wavy setting.
The primary exhaust gas spray unit 4 shown in fig. 4-7 includes a nozzle support bracket 41, a nozzle mounting module 42, a spray support bracket 43, a spray expansion driving assembly 44 and a set of first nozzles 45, wherein the nozzle support bracket 41 is fixedly disposed on the inner wall of the intake pipe 2, the spray support bracket 43 is connected with the nozzle support bracket 41, the nozzle mounting module 42 is provided with a set of first nozzles 45, the spray expansion driving assembly 44 is disposed on the nozzle support bracket 41 and connected with the spray expansion driving assembly 44 and the nozzle mounting module 42, the nozzle mounting module 42 is slidably connected with the spray support bracket 43 and connected with the spray expansion driving assembly 44, the spray expansion driving assembly 44 can drive the nozzle mounting module 42 to expand or contract, and the set of first nozzles 45 is connected with the spray liquid delivery pipe 20.
Wherein, the nozzle installation module 42 includes a set of nozzle supporting sliding rods 421, the set of nozzle supporting sliding rods 421 uses the center of the spraying supporting disk 43 as the center to be disposed according to the annular array mode, the nozzle supporting sliding rods 421 are all provided with a set of nozzles 45, the nozzle supporting sliding rods 421 include an arc nozzle mounting plate 422, a supporting sliding plate 423, a guiding column 424 and a limiting plate 425, the arc nozzle mounting plate 422 is fixedly disposed on the end portion of the supporting sliding plate 423 far away from the center of the spraying supporting disk 43, the guiding column 424 and the supporting sliding plate 423 are fixedly connected with the end portion close to the center end portion of the spraying supporting disk 43, the limiting plate 425 and the guiding column 424 are fixedly connected with the end portion far away from the supporting sliding plate 423, the spraying supporting disk 43 is provided with a set of sliding grooves 431 along the radial direction, the set of sliding grooves 431 and the set of nozzle supporting sliding rods 421 are disposed in a one-to-one correspondence, the supporting sliding plates 423 are disposed in the sliding grooves 431, and the support slide 423 is slidable within the slide channel 431, the guide post 424 being connected to the spray extension drive assembly 44.
In addition, the arc-shaped nozzle mounting plates 422 of the group of nozzle supporting sliding rods 421 are located on the same circumference, gaps 426 are formed between the arc-shaped nozzle mounting plates 422 of the group of nozzle supporting sliding rods 421, the diameter of the circumference where the arc-shaped nozzle mounting plates 422 of the group of nozzle supporting sliding rods 421 are located is larger than that of the spraying support disc 43, a group of first nozzles 45 are arranged on the arc-shaped nozzle mounting plates 422, and the group of first nozzles 45 on the arc-shaped nozzle mounting plates 422 are arranged in an outward divergence manner.
In addition, the spray extension driving assembly 44 includes a driving motor 441, a driving pulley 442 and a driven pulley 443, the driving motor 441 and the driven pulley 443 are disposed on the nozzle supporting bracket 41, the rotation shaft of the driving motor 441 is connected with the driving pulley 442, the driving pulley 442 is engaged with the driven pulley 443, the centers of the driven pulley 443 and the spray supporting tray 43 are on the same axis, and the guiding column 424 is connected with the driven pulley 443. The driven wheel 443 is provided with a set of guide driving grooves 444, the set of guide driving grooves 444 is arranged in an annular array with the center of the driven wheel 443 as the center, the set of guide driving grooves 444 and the set of nozzle support sliding rods 421 are arranged in a one-to-one correspondence, the guide posts 424 are arranged in the guide driving grooves 444, the guide driving grooves 444 can move along the guide driving grooves 444, the guide driving grooves 444 are arc-shaped grooves, the guide driving grooves 444 are arranged in a radial bending manner along the driven wheel 443, the limiting plate 425 and the support sliding plate 423 are respectively arranged on two sides of the driven wheel 443, the cross section of the limiting plate 425 is circular, and the diameter of the limiting plate 425 and the width of the support sliding plate 423 are both greater than the width of the guide driving grooves 444.
Based on the structure, the working method of the fish scale-shaped laminated rain curtain type desulfurization spray tower comprises the following steps:
s1, conveying the spray liquid in the spray liquid storage tank 6 to the waste gas primary spray unit 4 through a second spray liquid conveying pipe 20, and spraying the spray liquid from a second group of nozzles 53;
s2, the primary exhaust gas spraying unit 4 is started, the driving motor 441 rotates clockwise, the driving motor 441 drives the driving wheel 442 to rotate, the driving wheel 442 drives the driven wheel 443 to rotate, and the set of guide driving grooves 444 on the driven wheel 443 rotate synchronously, so that the driving guide posts 424 in the guide driving grooves 444 move along the arc of the guide driving grooves 444, thereby pushing the support sliding plate 423 to slide in the sliding groove 431, so that the arc nozzle mounting plate 422 is unfolded outwards;
s3, the driving motor 441 rotates counterclockwise, the driving motor 441 drives the driving wheel 442 to rotate, the driving wheel 442 drives the driven wheel 443 to rotate, and the guiding driving grooves 444 on the driven wheel 443 rotate synchronously, so that the driving guiding pillars 424 in the guiding driving grooves 444 move along the arc of the guiding driving grooves 444, and the supporting sliding plate 423 is pulled to slide in the sliding groove 431, so that the arc nozzle mounting plate 422 contracts inwards;
s4, the spraying device 4 continuously repeats the steps S2-S3, so that a group of first nozzles 45 on the same circumference are continuously unfolded or contracted;
s5, enabling the flue gas to enter from one end of the air inlet pipe 2, enabling the flue gas to flow to the position of the primary waste gas spraying unit 4 to be in contact with spraying liquid sprayed by the group of first nozzles 45, and performing primary purification on the flue gas;
s6, conveying the spray liquid in the spray liquid storage tank 6 into the spray liquid temporary storage tank 7 through a spray liquid conveying pipe I10;
s7, opening a valve body between the temporary spray liquid storage box 7 and the flue gas conveying plate 52, enabling the spray liquid in the temporary spray liquid storage box 7 to flow into a hollow pipe in the flue gas conveying plate 52, and enabling the spray liquid in the flue gas conveying plate 52 to be sprayed out through the second group of nozzles 53, wherein the second group of nozzles 53 on the flue gas conveying plate 52 form a rain curtain-shaped spray liquid stacked in a spiral mode to spray the flue gas due to the fact that the flue gas conveying plate 52 is arranged in the spiral mode;
s8, in the process of conveying the flue gas along the flue gas conveying channel 54, because the sectional area of the flue gas conveying channel 54 is gradually increased, the conveying speed of the flue gas at the upper end in the flue gas conveying channel 54 is not lower than that at the lower end of the flue gas conveying channel 54;
s9, spraying liquid sprayed by the group of second nozzles 53 falls on the outer wall of the flue gas conveying plate 52, falls into the spraying liquid recovery box 9 along the flue gas conveying plate 52, and flows into the spraying liquid storage box 6;
s10, conveying the flue gas purified by the rain curtain type spraying unit 5 into a demister 8;
s11, cooling liquid is filled into the cooling pipe 81, the group of demisting plates 82 are cooled, and demisting of the flue gas is carried out when the flue gas after secondary purification passes through the gap 84;
and S12, discharging the demisted flue gas through the gas outlet pipe 3.
The foregoing is only a preferred embodiment of the present invention, and it should be noted that modifications can be made by those skilled in the art without departing from the principle of the present invention, and these modifications should also be construed as the protection scope of the present invention.
Claims (10)
1. The utility model provides a range upon range of rain curtain formula desulfurization spray column of fish scale which characterized in that: comprises a spray tower tank body (1), an air inlet pipe (2), an air outlet pipe (3), a primary waste gas spraying unit (4), a rain curtain type spraying unit (5), a spraying liquid storage tank (6), a temporary spraying liquid storage tank (7), a demister (8) and a spraying liquid recovery tank (9), wherein the spray tower tank body (1) is vertically arranged in a cylindrical shape, the spraying liquid recovery tank (9) is arranged at the lower end part of the spray tower tank body (1), the spraying liquid recovery tank (9) is communicated with the spraying liquid storage tank (6), the air inlet pipe (2) is in a right-angled bent pipe shape, one end of the air inlet pipe (2) is fixedly connected with the outer wall of the lower end part of the spray tower tank body (1), the air inlet pipe (2) is communicated with an internal spraying cavity of the spray tower tank body (1), the air outlet pipe (3) is arranged at the upper end part of the spray tower tank body (1), and the air outlet pipe (3) is communicated with the internal spraying cavity of the spray tower tank body (1), the waste gas primary spraying unit (4) is arranged in the vertical section of the air inlet pipe (2), the rain curtain type spraying unit (5) is arranged in the spraying tower tank body (1), the temporary spraying liquid storage box (7) is arranged in the spraying tower tank body (1), the temporary spray liquid storage box (7) is communicated with the rain curtain type spray unit (5), the demister (8) is arranged at the upper end position inside the spray tower tank body (1), a channel is arranged between the temporary spray liquid storage box (7) and the spray tower tank body (1), the flue gas in the spray tower tank body (1) can pass through the channel to enter the demister (8), a first spray liquid conveying pipe (10) is arranged between the spray liquid storage tank (6) and the spray liquid temporary storage tank (7), and a second spraying liquid conveying pipe (20) is arranged between the spraying liquid storage tank (6) and the waste gas primary spraying unit (4).
2. The scaled stacked raincurtain desulfurization spray tower of claim 1, wherein: the rain curtain type spraying unit (5) comprises a stand column (51), a smoke conveying plate (52) and a group of second nozzles (53), the upright post (51) is fixedly arranged inside the spray tower tank body (1), the flue gas conveying plate (52) is spirally arranged on the upright post (51), the outer edge of the flue gas conveying plate (52) is fixedly connected with the inner wall of the spray tower tank body (1), a group of second nozzles (53) are arranged on the lower end surface of the flue gas conveying plate (52), a spiral flue gas conveying channel (54) is formed between the flue gas conveying plate (52) and the inner wall of the spray tower tank body (1), the screw pitch of the flue gas conveying channel (54) is gradually increased from bottom to top, the interior of the flue gas conveying plate (52) is of a hollow tubular structure, and the hollow tubular structure in the interior of the flue gas conveying plate (52) is communicated with the spraying liquid temporary storage box (7).
3. The scaled stacked raincurtain desulfurization spray tower of claim 1, wherein: demister (8) includes cooling tube (81), a set of defogging board (82) and defogging board mounting panel (83), defogging board mounting panel (83) are fixed to be set up on the inner wall of the spray tower jar body (1), a set of defogging board (82) parallel arrangement to a set of defogging board (82) set up on defogging board mounting panel (83), cooling tube (81) are the form of turning back and wear to manage between a set of defogging board (82), be equipped with gap (84) between a set of defogging board (82), gap (84) can be passed to the flue gas.
4. The scaled stacked raincurtain desulfurization spray tower of claim 3, wherein: defogging board (82) are including a set of isosceles trapezoid board body (821) and a set of connecting plate (822), connect through connecting plate (822) between a set of isosceles trapezoid board body (821), a set of isosceles trapezoid board body (821) are in on the same straight line, be equipped with a set of cooling reinforcing plate (823) on defogging board mounting panel (83), cooling reinforcing plate (823) are the wave form setting.
5. The scaled stacked raincurtain desulfurization spray tower of claim 1, wherein: the waste gas primary spray unit (4) comprises a nozzle supporting frame (41), a nozzle mounting module (42), a spray supporting disc (43), a spray expansion driving assembly (44) and a group of first nozzles (45), wherein the nozzle supporting frame (41) is fixedly arranged on the inner wall of the air inlet pipe (2), the spray supporting disc (43) is connected with the nozzle supporting frame (41), the nozzle mounting module (42) is provided with the group of first nozzles (45), the spray expansion driving assembly (44) is arranged on the nozzle supporting frame (41), the spray expansion driving assembly (44) is connected with the nozzle mounting module (42), the nozzle mounting module (42) is in sliding connection with the spray supporting disc (43), the nozzle mounting module (42) is connected with the spray expansion driving assembly (44), and the spray expansion driving assembly (44) can drive the nozzle mounting module (42) to expand or contract, the group of first nozzles (45) is connected with the second spraying liquid conveying pipe (20).
6. The scaled stacked raincurtain desulfurization spray tower of claim 5, wherein: nozzle installation module (42) supports slide bar (421) including a set of nozzle, a set of nozzle supports slide bar (421) and sets up according to annular array's mode with the center of spraying supporting disk (43) as the centre of a circle, the nozzle supports all to be equipped with a set of nozzle (45) on slide bar (421), nozzle supports slide bar (421) and includes arc nozzle mounting panel (422), supports slide plate (423), guide post (424) and limiting plate (425), arc nozzle mounting panel (422) are fixed to be set up on supporting slide plate (423) and keeping away from the tip of spraying supporting disk (43) center, one end fixed connection that guide post (424) and support slide plate (423) are close to spraying supporting disk (43) center tip, the limiting plate (425) and guide post (424) are kept away from the end fixed connection who supports slide plate (423), spray supporting disk (43) and go up and radially to be equipped with a set of spout (431), the group of sliding grooves (431) and the group of nozzle supporting sliding rods (421) are arranged in a one-to-one correspondence mode, the supporting sliding plates (423) are arranged in the sliding grooves (431), the supporting sliding plates (423) can slide in the sliding grooves (431), and the guide columns (424) are connected with the spraying expansion driving assembly (44).
7. The scaled stacked raincurtain desulfurization spray tower of claim 6, wherein: the arc-shaped nozzle mounting plates (422) of the group of nozzle supporting sliding rods (421) are located on the same circumference, gaps (426) are formed between the arc-shaped nozzle mounting plates (422) of the group of nozzle supporting sliding rods (421), the diameter of the circumference where the arc-shaped nozzle mounting plates (422) of the group of nozzle supporting sliding rods (421) are located is larger than the diameter of the spraying supporting disc (43), a group of first nozzles (45) are arranged on the arc-shaped nozzle mounting plates (422), and the group of first nozzles (45) on the arc-shaped nozzle mounting plates (422) are arranged in an outward divergence mode.
8. The scaled stacked raincurtain desulfurization spray tower of claim 7, wherein: the spray expansion driving assembly (44) comprises a driving motor (441), a driving wheel (442) and a driven wheel (443), wherein the driving motor (441) and the driven wheel (443) are arranged on the nozzle supporting frame (41), the rotating shaft of the driving motor (441) is connected with the driving wheel (442), the driving wheel (442) is meshed with the driven wheel (443), the centers of the driven wheel (443) and the spray supporting disc (43) are on the same axis, and the guide column (424) is connected with the driven wheel (443).
9. The scaled stacked raincurtain desulfurization spray tower of claim 8, wherein: the driven wheel (443) is provided with a group of guide driving grooves (444), the group of guide driving grooves (444) are arranged in an annular array mode with the center of the driven wheel (443) as the center of a circle, the group of guide driving grooves (444) and the group of nozzle support sliding rods (421) are arranged in a one-to-one correspondence mode, the guide posts (424) are arranged in the guide driving grooves (444), the guide posts (424) can move along the guide driving grooves (444), the guide driving grooves (444) are arc-shaped grooves, the guide driving grooves (444) are arranged in a bending mode along the radial direction of the driven wheel (443), the limiting plates (425) and the support sliding plates (423) are respectively located on two sides of the driven wheel (443), the cross sections of the limiting plates (425) are circular, and the diameters of the limiting plates (425) and the widths of the support sliding plates (423) are both greater than the widths of the guide driving grooves (444).
10. A working method of a fish scale-shaped stacked rain curtain type desulfurization spray tower is characterized in that: the method comprises the following steps:
s1, conveying the spray liquid in the spray liquid storage tank (6) to the primary waste gas spray unit (4) through a spray liquid conveying pipe II (20), and spraying the spray liquid from a group of second nozzles (53);
s2, starting the primary exhaust gas spraying unit (4), enabling the driving motor (441) to rotate clockwise, enabling the driving motor (441) to drive the driving wheel (442) to rotate, enabling the driving wheel (442) to drive the driven wheel (443) to rotate, enabling a group of guide driving grooves (444) on the driven wheel (443) to rotate synchronously, enabling the driving guide columns (424) in the guide driving grooves (444) to move along the radian of the guide driving grooves (444), and accordingly pushing the supporting sliding plate (423) to slide in the sliding groove (431) and enabling the arc-shaped nozzle mounting plate (422) to expand outwards;
s3, the driving motor (441) rotates anticlockwise, the driving motor (441) drives the driving wheel (442) to rotate, the driving wheel (442) drives the driven wheel (443) to rotate, and the group of guide driving grooves (444) on the driven wheel (443) rotate synchronously, so that the driving guide columns (424) in the guide driving grooves (444) move along the radian of the guide driving grooves (444), and the supporting sliding plate (423) is pulled to slide in the sliding groove (431), so that the arc-shaped nozzle mounting plate (422) contracts inwards;
s4, continuously repeating the steps S2-S3 by the spraying device (4), so that a group of first nozzles (45) on the same circumference are continuously unfolded or contracted;
s5, enabling the flue gas to enter from one end of the air inlet pipe (2), enabling the flue gas to flow to the position of the primary waste gas spraying unit (4) to be in contact with spraying liquid sprayed by a group of first nozzles (45), and performing primary purification on the flue gas;
s6, conveying the spray liquid in the spray liquid storage tank (6) into a spray liquid temporary storage tank (7) through a spray liquid conveying pipe I (10);
s7, opening a valve body between the spraying liquid temporary storage box (7) and the smoke conveying plate (52), enabling the spraying liquid in the spraying liquid temporary storage box (7) to flow into a hollow pipe in the smoke conveying plate (52), enabling the spraying liquid in the smoke conveying plate (52) to be sprayed out through a second group of nozzles (53), and enabling the second group of nozzles (53) on the smoke conveying plate (52) to form a stacked rain curtain-shaped spraying liquid to spray smoke due to the fact that the smoke conveying plate (52) is arranged spirally;
s8, in the process of conveying the flue gas along the flue gas conveying channel (54), because the sectional area of the flue gas conveying channel (54) is gradually increased, the conveying speed of the flue gas at the upper end in the flue gas conveying channel (54) is less than that at the lower end of the flue gas conveying channel (54);
s9, spraying liquid sprayed by the group of second nozzles (53) falls on the outer wall of the flue gas conveying plate (52), falls into the spraying liquid recovery box (9) along the flue gas conveying plate (52), and flows into the spraying liquid storage box (6);
s10, conveying the flue gas purified by the rain curtain type spraying unit (5) into a demister (8);
s11, cooling liquid is filled into the cooling pipe (81), the group of demisting plates (82) are cooled, and demisting of the flue gas is carried out when the flue gas after secondary purification passes through the gap (84);
and S12, discharging the demisted flue gas through the gas outlet pipe (3).
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN202111317767.3A CN114191972A (en) | 2021-11-09 | 2021-11-09 | Fish scale-shaped stacked rain curtain type desulfurization spray tower and working method thereof |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN202111317767.3A CN114191972A (en) | 2021-11-09 | 2021-11-09 | Fish scale-shaped stacked rain curtain type desulfurization spray tower and working method thereof |
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Cited By (2)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN114870606A (en) * | 2022-07-05 | 2022-08-09 | 沧州中铁装备制造材料有限公司 | Acid making tail gas purifying and whitening device |
| CN115739423A (en) * | 2022-11-22 | 2023-03-07 | 连云港赣榆康恒环保能源有限公司 | High-speed rotation centrifugal desulfurization atomizer for garbage power generation |
-
2021
- 2021-11-09 CN CN202111317767.3A patent/CN114191972A/en not_active Withdrawn
Cited By (4)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN114870606A (en) * | 2022-07-05 | 2022-08-09 | 沧州中铁装备制造材料有限公司 | Acid making tail gas purifying and whitening device |
| CN114870606B (en) * | 2022-07-05 | 2022-09-23 | 沧州中铁装备制造材料有限公司 | Acid making tail gas purifying and whitening device |
| CN115739423A (en) * | 2022-11-22 | 2023-03-07 | 连云港赣榆康恒环保能源有限公司 | High-speed rotation centrifugal desulfurization atomizer for garbage power generation |
| CN115739423B (en) * | 2022-11-22 | 2023-08-25 | 连云港赣榆康恒环保能源有限公司 | High-speed rotation centrifugal desulfurization atomizer for garbage power generation |
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