CN114011233B - Energy-saving washing tower convenient to maintain and waste gas desulfurization treatment method - Google Patents
Energy-saving washing tower convenient to maintain and waste gas desulfurization treatment method Download PDFInfo
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- CN114011233B CN114011233B CN202111317788.5A CN202111317788A CN114011233B CN 114011233 B CN114011233 B CN 114011233B CN 202111317788 A CN202111317788 A CN 202111317788A CN 114011233 B CN114011233 B CN 114011233B
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- waste gas
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- exhaust gas
- nozzles
- tower
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- 238000006477 desulfuration reaction Methods 0.000 title claims abstract description 48
- 230000023556 desulfurization Effects 0.000 title claims abstract description 48
- 238000000034 method Methods 0.000 title claims abstract description 30
- 238000005406 washing Methods 0.000 title claims abstract description 26
- 239000002912 waste gas Substances 0.000 title claims description 121
- XLYOFNOQVPJJNP-UHFFFAOYSA-N water Substances O XLYOFNOQVPJJNP-UHFFFAOYSA-N 0.000 claims abstract description 47
- 239000002002 slurry Substances 0.000 claims abstract description 43
- 238000005507 spraying Methods 0.000 claims abstract description 31
- 230000000903 blocking effect Effects 0.000 claims abstract description 21
- 230000000694 effects Effects 0.000 claims abstract description 12
- 239000007789 gas Substances 0.000 claims description 41
- 239000007921 spray Substances 0.000 claims description 34
- 239000007788 liquid Substances 0.000 claims description 24
- 238000001816 cooling Methods 0.000 claims description 20
- 238000006243 chemical reaction Methods 0.000 claims description 7
- 238000005201 scrubbing Methods 0.000 claims description 6
- 238000007667 floating Methods 0.000 claims description 5
- 238000002347 injection Methods 0.000 claims description 4
- 239000007924 injection Substances 0.000 claims description 4
- 230000003009 desulfurizing effect Effects 0.000 claims 1
- 238000004134 energy conservation Methods 0.000 abstract description 5
- 230000000630 rising effect Effects 0.000 description 14
- 238000009434 installation Methods 0.000 description 8
- HEMHJVSKTPXQMS-UHFFFAOYSA-M Sodium hydroxide Chemical compound [OH-].[Na+] HEMHJVSKTPXQMS-UHFFFAOYSA-M 0.000 description 3
- NINIDFKCEFEMDL-UHFFFAOYSA-N Sulfur Chemical compound [S] NINIDFKCEFEMDL-UHFFFAOYSA-N 0.000 description 3
- 238000005265 energy consumption Methods 0.000 description 3
- 238000012423 maintenance Methods 0.000 description 3
- 239000011593 sulfur Substances 0.000 description 3
- 229910052717 sulfur Inorganic materials 0.000 description 3
- 238000011010 flushing procedure Methods 0.000 description 2
- 239000003949 liquefied natural gas Substances 0.000 description 2
- 230000002035 prolonged effect Effects 0.000 description 2
- 239000013535 sea water Substances 0.000 description 2
- 238000004140 cleaning Methods 0.000 description 1
- 238000009841 combustion method Methods 0.000 description 1
- 238000005260 corrosion Methods 0.000 description 1
- 230000007797 corrosion Effects 0.000 description 1
- 238000007599 discharging Methods 0.000 description 1
- 238000005516 engineering process Methods 0.000 description 1
- 239000000295 fuel oil Substances 0.000 description 1
- 230000005484 gravity Effects 0.000 description 1
- VTHJTEIRLNZDEV-UHFFFAOYSA-L magnesium dihydroxide Chemical compound [OH-].[OH-].[Mg+2] VTHJTEIRLNZDEV-UHFFFAOYSA-L 0.000 description 1
- 239000000347 magnesium hydroxide Substances 0.000 description 1
- 229910001862 magnesium hydroxide Inorganic materials 0.000 description 1
- 238000002156 mixing Methods 0.000 description 1
- 230000000149 penetrating effect Effects 0.000 description 1
- 230000000737 periodic effect Effects 0.000 description 1
- 238000002360 preparation method Methods 0.000 description 1
- 239000000243 solution Substances 0.000 description 1
- 229910001220 stainless steel Inorganic materials 0.000 description 1
- 239000010935 stainless steel Substances 0.000 description 1
- 230000003068 static effect Effects 0.000 description 1
Classifications
-
- 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
- B01D53/80—Semi-solid phase processes, i.e. by using slurries
-
- 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
Landscapes
- Engineering & Computer Science (AREA)
- Chemical & Material Sciences (AREA)
- Environmental & Geological Engineering (AREA)
- Health & Medical Sciences (AREA)
- Biomedical Technology (AREA)
- Analytical Chemistry (AREA)
- General Chemical & Material Sciences (AREA)
- Oil, Petroleum & Natural Gas (AREA)
- Chemical Kinetics & Catalysis (AREA)
- Treating Waste Gases (AREA)
Abstract
The invention provides an energy-saving washing tower convenient to maintain and an exhaust gas desulfurization treatment method, which comprises a tower body, an exhaust gas inlet arranged at the bottom of the tower body and an exhaust gas outlet arranged on the tower body, wherein a plurality of nozzles are arranged in the tower body and are used for spraying slurry to carry out desulfurization treatment on the exhaust gas, a water blocking cyclone is further arranged between the exhaust gas inlet and the nozzles, and the water blocking cyclone is used for blocking the slurry from entering the exhaust gas inlet and is used for enabling the exhaust gas to generate cyclone; the invention increases the energy conservation of ship exhaust gas desulfurization treatment and improves the exhaust gas desulfurization effect.
Description
Technical Field
The invention relates to the field of ship washing towers, in particular to an energy-saving washing tower convenient to maintain and a waste gas desulfurization treatment method.
Background
There are three measures available to fulfill the IMO requirements for sulfur emissions: low sulfur fuel oil, liquefied Natural Gas (LNG), and marine exhaust gas desulfurization techniques are used.
In the aspect of ship waste gas desulfurization technology, the core equipment washing tower is mainly divided into a U-shaped tower and an I-shaped tower, wherein the U-shaped tower is more suitable for a large ship with enough installation space, and the I-shaped tower is more suitable for a small ship with limited installation space. Meanwhile, the U-shaped tower is provided with a spray tower and a packed tower, and the I-shaped tower is usually a spray tower.
Currently, in order to ensure desulfurization efficiency, the I-type tower on the market is generally higher in height, a plurality of layers of spraying and very dense nozzle arrangements are arranged, and the energy consumption and the pressure drop of the system operation are higher. For small ships, especially ships with larger ages, the normal operation of an engine is influenced by excessive pressure drop, and the power supply system of the original ship is influenced by excessive energy consumption.
Disclosure of Invention
The invention aims to provide a washing tower which can increase the energy conservation of ship waste gas desulfurization treatment and improve the waste gas desulfurization effect and is convenient to maintain, and a waste gas desulfurization treatment method.
In order to solve the technical problems, the invention provides an energy-saving and convenient-to-maintain washing tower which comprises a tower body, an exhaust gas inlet arranged at the bottom of the tower body and an exhaust gas outlet arranged on the tower body, wherein a plurality of nozzles are arranged in the tower body and are used for spraying slurry to carry out desulfurization treatment on the exhaust gas, a water blocking cyclone is further arranged between the exhaust gas inlet and the nozzles, and the water blocking cyclone is used for blocking the slurry from entering the exhaust gas inlet and is used for enabling the exhaust gas to generate cyclone.
Further, the water retaining cyclone comprises a water retaining cap arranged in the tower body and a cyclone sheet arranged on the periphery of the water retaining cap; the water retaining cap is arranged above the exhaust gas outlet end of the exhaust gas inlet.
Further, the plurality of nozzles are spirally distributed along the height direction of the tower body.
Further, the spraying direction of the spray nozzle is inclined downwards relative to the inner wall of the tower body.
Further, an inclination angle is formed between the spraying direction of the nozzle and the central line of the cross section of the tower body.
Further, the injection ranges of two adjacent nozzles intersect and at least cover the central axis of the tower body.
Further, a cooling spray layer is arranged between the water blocking cyclone and the nozzles and used for reducing the temperature of the waste gas.
Further, the cooling spray layer comprises a spray pipe and a cooling nozzle arranged on the spray pipe.
The invention also discloses a waste gas desulfurization treatment method, which comprises the following steps: waste gas is input into the washing tower from bottom to top; forming waste gas rotational flow through a water retaining cyclone in the process of floating waste gas upwards; the waste gas rotational flow sequentially passes through a plurality of desulfurization treatment layers and is sprayed by slurry sprayed obliquely downwards to carry out desulfurization treatment; the desulfurized exhaust gas is then obtained.
At least one slurry is sprayed downwards from different heights and different directions of the washing tower in an inclined mode and is concentrated on the central axis of the washing tower to form a slurry spraying area, and the waste gas rotational flow is placed in the slurry spraying area to be sprayed in a surrounding mode.
When the ship waste gas is desulfurized, the ship waste gas enters from the waste gas inlet, and in the process of floating upwards, the waste gas passes through the position of the water blocking cyclone and rotates through the water blocking cyclone, so that the waste gas generates rotational flow in the process of continuously rising, and further, the waste gas rises in a rotational flow shape to reduce the rising speed of the waste gas, and meanwhile, the transverse area of the waste gas in the rising process is increased, so that the waste gas can fully react with desulfurization slurry sprayed by the nozzles, the desulfurization effect of the waste gas is further improved, and the rising speed of the waste gas is reduced, so that the time for separating the waste gas is prolonged, the nozzles are not required to be densely arranged, the same desulfurization effect can be achieved without being constructed by a washing tower, and the energy conservation of the washing tower in the scheme is ensured; in addition, because the nozzle needs to spray desulfurization slurry to waste gas to ensure that the waste gas is desulfurized, the possibility that the desulfurization slurry enters the waste gas inlet after being sprayed out exists, and at the moment, the water retaining cyclone can also block the slurry in the process of swirling the waste gas, so that the slurry cannot enter the waste gas inlet, and the situation that the slurry flows back to a host along the waste gas inlet is avoided.
Drawings
Fig. 1 is a schematic structural view of the present invention.
Fig. 2 is a schematic side view of the water deflector cyclone of the present invention.
Fig. 3 is a cross-sectional view taken along line A-A of fig. 1 in accordance with the present invention.
FIG. 4 is a schematic view showing the distribution of a plurality of nozzles along a spiral shape in the present invention.
Fig. 5 is a cross-sectional view of the present invention taken along line B-B of fig. 1.
Reference numerals: 1. an exhaust gas inlet; 2. a water outlet; 3. an overflow port; 4. a water blocking cyclone; 5. a nozzle; 6. a demister; 7. an exhaust gas outlet; 8. a demister flushing water pipe; 9. a support; 10. cooling and spraying the layer; 11. a water retaining cap; 12. swirl plate.
Detailed Description
The following description of the embodiments of the present invention will be made clearly and completely with reference to the accompanying drawings, in which it is apparent that the embodiments described are only some embodiments of the present invention, but not all embodiments. All other embodiments, which are derived by a person skilled in the art based on the embodiments of the invention, fall within the scope of protection of the invention.
It will be appreciated by those skilled in the art that in the present disclosure, the terms "longitudinal," "transverse," "upper," "lower," "front," "rear," "left," "right," "vertical," "horizontal," "top," "bottom," "inner," "outer," etc. refer to an orientation or positional relationship based on that shown in the drawings, which is merely for convenience of description and to simplify the description, and do not indicate or imply that the apparatus or elements referred to must have a particular orientation, be constructed and operated in a particular orientation, and therefore the above terms should not be construed as limiting the present invention.
It will be understood that the terms "a" and "an" should be interpreted as referring to "at least one" or "one or more," i.e., in one embodiment, the number of elements may be one, while in another embodiment, the number of elements may be plural, and the term "a" should not be interpreted as limiting the number.
The invention provides an energy-saving and convenient-to-maintain washing tower, which comprises a tower body, an exhaust gas inlet 1 arranged at the bottom of the tower body and an exhaust gas outlet 7 arranged on the tower body, wherein a plurality of nozzles 5 are arranged in the tower body and are used for spraying slurry to carry out desulfurization treatment on the exhaust gas, a water blocking cyclone 4 is further arranged between the exhaust gas inlet 1 and the nozzles 5, and the water blocking cyclone 4 is used for blocking the slurry from entering the exhaust gas inlet 1 and is used for enabling the exhaust gas to generate cyclone.
When the ship waste gas is desulfurized, the ship waste gas enters from the waste gas inlet, and in the process of floating upwards, the waste gas passes through the position of the water blocking cyclone and rotates through the water blocking cyclone, so that the waste gas generates rotational flow in the process of continuously rising, the waste gas rises in a rotational flow shape to reduce the rising speed of the waste gas, meanwhile, the transverse area of the waste gas in the rising process is increased, the waste gas can fully react with desulfurization slurry sprayed by the nozzles, the desulfurization effect of the waste gas is further improved, and the rising speed of the waste gas is reduced, so that the time for separating the waste gas from the treatment is prolonged, the nozzles are not needed to be densely arranged and the washing tower is built higher, the same desulfurization effect can be achieved, and the energy conservation of the washing tower in the scheme is ensured; in addition, because the nozzle needs to spray desulfurization slurry to waste gas to ensure that the waste gas is desulfurized, the possibility that the desulfurization slurry enters the waste gas inlet after being sprayed out exists, and at the moment, the water retaining cyclone can also block the slurry in the process of swirling the waste gas, so that the slurry cannot enter the waste gas inlet, and the situation that the slurry flows back to a host along the waste gas inlet is avoided.
In the scheme, the waste gas inlet is positioned at the bottom of the tower body, and the waste gas outlet is positioned at the top of the tower body, so that waste gas can enter the waste gas outlet from the waste gas inlet for discharging in the rising process, and the waste gas is not required to be driven by other dynamic gas driving devices, so that the energy consumption in the flowing process of the waste gas is reduced; in addition, a plurality of supports 9 are arranged on the outer side of the tower body, and the washing tower is connected to the ship through the supports, so that the stability of the washing tower is guaranteed.
Preferably, the water retaining cyclone 4 comprises a water retaining cap 11 arranged in the tower body and a cyclone sheet 12 arranged on the periphery side of the water retaining cap 11; the water blocking cap 11 is arranged above the air outlet end of the exhaust gas inlet 1.
Specifically, after waste gas gets into through the waste gas entry, the nozzle sprays out the sulfur removal thick liquid simultaneously, start the manger plate cap and rotate for the tower body, and then drive the whirl piece through the manger plate cap and rotate, this moment because the manger plate cap has blocked the top of waste gas entry end of giving vent to anger, make the nozzle of manger plate cap upside spray out thick liquid back, the thick liquid can be blocked by the manger plate cap, the condition that has avoided thick liquid to fall to waste gas entry, and the manger plate cap still can throw away thick liquid to the week side of manger plate cap at pivoted in-process, the security of waste gas entry has further been increased, simultaneously because manger plate cap drives the whirl piece and rotates, when making waste gas rise the position through the whirl piece, the whirl piece of rotation state can drive the waste gas that passes through and rotate, and then make waste gas form the whirl form, when reducing waste gas rising speed, increase the reaction area between waste gas and the desulfurization thick liquid.
In this scheme, the inside motor that is equipped with of manger plate cap, manger plate cap pass through the motor and drive and rotate.
In another embodiment of the scheme, the water retaining cap is static relative to the tower body, and the cyclone plate on the periphery of the water retaining cap is obliquely arranged relative to the gravity direction, so that waste gas upwards floats and flows through the cyclone plate to automatically generate waste gas cyclone, and the rising speed of the waste gas is reduced.
It is worth mentioning that the tower body is in the downside of manger plate swirler, be located the week side position of exhaust gas inlet, be provided with outlet 2 and overflow mouth 3, and the position of seting up of overflow mouth is higher than the position of outlet, after the thick liquid kept away from exhaust gas inlet through manger plate swirler, the thick liquid can be along the inner wall of tower body downwardly sliding, and then discharge through the outlet, in order to guarantee that thick liquid can not pile up and spread to exhaust gas inlet department, if the outlet jam or thick liquid too much lead to the outlet to arrive not the condition such as discharge simultaneously, the overflow mouth can carry out secondary to the thick liquid of overflow and discharge, increase the effect that the thick liquid discharged.
Particularly, because in this scheme, outlet, overflow mouth and waste gas entry all are in the bottom of tower body for outlet and overflow mouth need not to install alone and set up, have reduced the arrangement space, adapt to the less boats and ships in space more and use.
Preferably, the plurality of nozzles 5 are spirally distributed along the height direction of the tower body.
Specifically, because waste gas forms the whirl form and upwards flows after manger plate swirler, the cooperation is a plurality of nozzles that the heliciform distributes this moment for the thick liquid of a plurality of nozzles spray the department also can form the heliciform and distribute, and then carry out further promotion through the distribution angle that the thick liquid sprayed and the dynamics of spraying to the waste gas of whirl form, guarantee that waste gas can also keep the whirl form at the in-process that continues to rise, be the heliciform thick liquid that sprays in addition and also can more match the waste gas of whirl form, increase the abundant reaction effect between waste gas and the desulfurization thick liquid.
Preferably, the spraying direction of the nozzle 5 is inclined downward relative to the inner wall of the tower body.
Specifically, since the spraying direction of the nozzle is inclined downward, the slurry at the spraying position can play a certain blocking effect on the rising exhaust gas, so that the resistance to the exhaust gas is increased to reduce the rising flow rate of the exhaust gas, and in the embodiment of the present disclosure, the angle of the nozzle inclined downward is shown as an angle B in fig. 4, and preferably the angle of the nozzle inclined downward is 0-15 °.
Preferably, an inclination angle is formed between the spraying direction of the nozzle 5 and the center line of the cross section of the tower body.
Specifically, when a plurality of nozzles are spirally distributed along the height direction of the tower body, an inclination angle is formed between the spraying direction of the nozzles and the central line of the cross section of the tower body, so that after the slurry is sprayed out from the plurality of nozzles, a spiral slurry spraying distribution structure is formed more easily, and further the promotion of the slurry to the swirling state of the waste gas and the full reaction between the slurry and the waste gas are ensured.
In particular, because spiral slurry spraying is matched with the spiral waste gas rising form, the spraying slurry amount reaching the required desulfurization efficiency can be reduced on the basis of ensuring the full reaction between the slurry and the waste gas, the running power of a water pump is reduced, and the energy conservation is further improved.
In this embodiment, the inclination angle between the spray direction of the spray nozzle and the center line of the cross section of the tower body is shown as an angle A in FIG. 5, and is preferably 15-45 deg..
It is worth mentioning that the circumference distribution quantity of nozzle along the tower body can set for different quantity according to specific boats and ships size specification, simultaneously in the position of same nozzle installation, also can install a plurality of nozzles according to actual demand to guarantee the result of use of nozzle, in addition when installing a plurality of nozzles on same nozzle mounted position, a part of nozzle in the unified mounted position is the level setting, and another part of nozzle is the slope and sets up 45 downwards to cover the horizontal cross-section of tower body through the nozzle that the level set up, and the nozzle that the slope set up downwards is then used for playing the effect that promotes waste gas and carry out the whirl.
Preferably, the injection ranges of two adjacent nozzles 5 intersect and at least cover the central axis of the tower body; when two adjacent nozzles spray slurry, the spraying ranges between the two nozzles are partially overlapped, so that the spraying gap between the two adjacent nozzles is not generated, and the full coverage reaction of slurry spraying on waste gas is further ensured.
Preferably, a plurality of mounting holes are formed in the side wall of the tower body in a penetrating manner, and the plurality of nozzles 5 are detachably connected into the corresponding mounting holes from the outer side to the inner side of the tower body.
Specifically, the nozzle in this scheme wears to establish the installation from tower body outside side direction tower body inboard for the spray direction of nozzle inwards, and dismantle the direction outwards, when making the nozzle appear damaging and need worsen or maintenance, maintenance personal only need dismantle the nozzle from the outside of scrubbing tower, need not to get into the tower body inside, increased the convenience that the nozzle was changed in the maintenance process.
Particularly, when the nozzle is installed in the installation hole, the flange is used for installation and fixation, so that the nozzle and the installation hole are mutually sealed, and when the nozzle needs to be disassembled, the nozzle can be quickly disassembled only by disassembling the flange.
Preferably, a cooling spray layer 10 is arranged between the water blocking cyclone 4 and the plurality of nozzles 5, and is used for reducing the temperature of the exhaust gas.
Specifically, after the waste gas passes through the manger plate swirler, can at first spray the layer through the cooling to spray the lower desulfurization thick liquid of department temperature through the cooling and spray the layer, and then carry out preliminary desulfurization to waste gas and handle, still cool down the waste gas that is in under the high temperature state simultaneously, in order to guarantee the desulfurization efficiency of follow-up reaction, in addition, tower body and inside spare part all adopt corrosion-resistant, high temperature resistant super stainless steel preparation, make the scrubbing tower that this scheme provided allow waste gas dry combustion method, waste gas is discharged through the scrubbing tower directly to handle through the cooling promptly, the use adaptability of scrubbing tower has been increased.
Preferably, the cooling spray layer 10 comprises a spray pipe and a cooling nozzle arranged on the spray pipe.
Specifically, when waste gas passes through the cooling spraying layer, the spraying pipe conveys desulfurization slurry with lower temperature and sprays the desulfurization slurry through the cooling nozzle so as to achieve the effect of reducing high-temperature waste gas.
In this scheme, the one end of shower is connected to the outside of scrubbing tower, guarantees the transportation of cooling thick liquid, and the shape of shower can be arranged into shapes such as straight tube or ring canal simultaneously to cooling nozzle also can install a plurality ofly, and when the shower was straight tube shape, a plurality of cooling nozzles staggered distribution in one side or both sides of shower, and the injection direction of cooling nozzle can be towards upside or downside.
Preferably, a demister 6 is arranged at one side, close to the exhaust gas outlet 7, of the inner part of the tower body, and is used for demisting the exhaust gas.
Specifically, after the desulfurization treatment of waste gas through cooling spray layer and nozzle, defogging is carried out to waste gas through the defroster, and waste gas after the follow-up through purifying is outwards discharged by the waste gas export.
Preferably, one side of the demister 6 is provided with a demister flushing water pipe 8 for cleaning the demister 6.
Specifically, because can be at the surface scale deposit of defroster after the defroster uses for a long time, and the waste gas after the desulfurization needs to carry out the defogging through the defroster and handle, if the scale deposit is more this moment, lead to the waste gas after the desulfurization to be polluted once more easily, consequently carry out periodic washing to the surface of defroster through defroster wash pipe to guarantee the clean degree of defroster self, improve exhaust emission's effect.
Particularly, the washing tower provided by the scheme is suitable for a seawater sodium hydroxide adding method, a seawater magnesium hydroxide adding method and other mixing methods, and has a wide application range.
The invention also discloses a waste gas desulfurization treatment method, which comprises the following steps: waste gas is input into the washing tower from bottom to top; the waste gas forms waste gas rotational flow through the water retaining cyclone 4 in the process of floating upwards; the waste gas rotational flow sequentially passes through a plurality of desulfurization treatment layers and is sprayed by slurry sprayed obliquely downwards to carry out desulfurization treatment; the desulfurized exhaust gas is then obtained.
At least one slurry is sprayed downwards from different heights and different directions of the washing tower in an inclined mode and is concentrated on the central axis of the washing tower to form a slurry spraying area, and the waste gas rotational flow is placed in the slurry spraying area to be sprayed in a surrounding mode.
In this scheme, the multilayer desulfurization treatment layer includes a plurality of nozzles that are spirally distributed along the height direction of the tower body, and each nozzle sprays the slurry in a downward-inclined spraying manner, wherein the distribution position and the installation inclination angle of the nozzles are the same as those in the above scheme.
In some embodiments, the exhaust gas is driven to rotate to form an exhaust gas cyclone when flowing through the rotating water blocking cyclone 4, and the water blocking cyclone structure in the scheme is the same as that in the scheme.
When waste gas passes through the water retaining cyclone, the water retaining cap 11 rotates and drives the cyclone sheet 12 to rotate, at the moment, the waste gas floats upwards to pass through the position of the cyclone sheet, and the waste gas is driven to rotate through the cyclone sheet in a rotating state, so that the waste gas forms cyclone and continuously floats upwards.
In another embodiment, the water retaining cap is stationary relative to the tower body, and the swirl plate is inclined relative to the height direction, so that the exhaust gas floats upwards and flows through the swirl plate to automatically generate exhaust gas swirling flow.
The present application is not limited to the above-mentioned preferred embodiments, and any person who can obtain other various products under the teaching of the present application can make any changes in shape or structure, and all the technical solutions that are the same or similar to the present application fall within the scope of the present application.
Claims (5)
1. The utility model provides an energy-conserving scrubbing tower of being convenient for maintain, includes the tower body, locates exhaust gas inlet (1) of tower body bottom, locates exhaust gas outlet (7) on the tower body, its characterized in that, be equipped with a plurality of nozzles (5) in the tower body for spout thick liquid and carry out desulfurization treatment to waste gas, still be equipped with manger plate swirler (4) between exhaust gas inlet (1) and a plurality of nozzles (5), manger plate swirler (4) are used for stopping thick liquid entering exhaust gas inlet (1) and are used for making waste gas produce the whirl;
The water retaining cyclone (4) comprises a water retaining cap (11) arranged in the tower body and a cyclone sheet (12) arranged on the periphery of the water retaining cap (11); the water retaining cap (11) is arranged above the air outlet end of the waste gas inlet (1), a motor is arranged in the water retaining cap, the water retaining cap is started to rotate relative to the tower body, the rotational flow sheet is driven to rotate through the water retaining cap, and when waste gas rises to pass through the rotational flow sheet, the rotational flow sheet in a rotating state drives the passing waste gas to rotate;
The nozzles (5) are spirally distributed along the height direction of the tower body, and an inclination angle is formed between the spraying direction of the nozzles (5) and the central line of the cross section of the tower body;
the spraying direction of the spray nozzle (5) is inclined downwards relative to the inner wall of the tower body;
the injection ranges of two adjacent nozzles (5) are intersected and at least cover the central axis of the tower body;
the waste gas forms the whirl form and upwards flows after manger plate swirler, and the cooperation is a plurality of nozzles that the heliciform distributes this moment for the thick liquid of a plurality of nozzles spray the department also can form the heliciform and distribute, and then carry out further promotion through the distribution angle that the thick liquid sprayed and the dynamics of spraying to the waste gas of whirl form, guarantee that the waste gas still can keep the whirl form at the in-process that continues to rise, be the heliciform thick liquid that sprays also can more match the waste gas of whirl form, increase the abundant reaction effect between waste gas and the desulfurization thick liquid.
2. The energy-efficient easy-to-repair scrubber according to claim 1, wherein: and a cooling spray layer (10) is arranged between the water blocking cyclone (4) and the nozzles (5) and is used for reducing the temperature of the waste gas.
3. The energy-efficient easy-to-repair scrubber according to claim 2, wherein: the cooling spray layer (10) comprises a spray pipe and a cooling nozzle arranged on the spray pipe.
4. A method for desulfurizing exhaust gas for the energy-saving and maintenance-convenient scrubber according to any one of claims 1 to 3, characterized by comprising the steps of: waste gas is input into the washing tower from bottom to top; the waste gas forms waste gas rotational flow through a water retaining cyclone (4) in the process of floating upwards; the waste gas rotational flow sequentially passes through a plurality of desulfurization treatment layers and is sprayed by slurry sprayed obliquely downwards to carry out desulfurization treatment; the desulfurized exhaust gas is then obtained.
5. The exhaust gas desulfurization treatment method according to claim 4, characterized in that: at least one slurry is sprayed downwards from different heights and different directions of the washing tower in an inclined mode and is concentrated on the central axis of the washing tower to form a slurry spraying area, and the waste gas rotational flow is placed in the slurry spraying area to be sprayed in a surrounding mode.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN202111317788.5A CN114011233B (en) | 2021-11-09 | 2021-11-09 | Energy-saving washing tower convenient to maintain and waste gas desulfurization treatment method |
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| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN202111317788.5A CN114011233B (en) | 2021-11-09 | 2021-11-09 | Energy-saving washing tower convenient to maintain and waste gas desulfurization treatment method |
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| Publication Number | Publication Date |
|---|---|
| CN114011233A CN114011233A (en) | 2022-02-08 |
| CN114011233B true CN114011233B (en) | 2024-04-26 |
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| CN202111317788.5A Active CN114011233B (en) | 2021-11-09 | 2021-11-09 | Energy-saving washing tower convenient to maintain and waste gas desulfurization treatment method |
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