CN109045918A - A kind of air cleaning and wet flue gas dehumidification device - Google Patents

A kind of air cleaning and wet flue gas dehumidification device Download PDF

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Publication number
CN109045918A
CN109045918A CN201811093414.8A CN201811093414A CN109045918A CN 109045918 A CN109045918 A CN 109045918A CN 201811093414 A CN201811093414 A CN 201811093414A CN 109045918 A CN109045918 A CN 109045918A
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CN
China
Prior art keywords
flue gas
wet flue
dehumidification
unit
storehouse
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Granted
Application number
CN201811093414.8A
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Chinese (zh)
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CN109045918B (en
Inventor
刘毅
孟晓东
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Beijing Overflow Fluid Technology Co Ltd
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Beijing Overflow Fluid Technology Co Ltd
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Priority to CN201811093414.8A priority Critical patent/CN109045918B/en
Publication of CN109045918A publication Critical patent/CN109045918A/en
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    • BPERFORMING OPERATIONS; TRANSPORTING
    • B01PHYSICAL OR CHEMICAL PROCESSES OR APPARATUS IN GENERAL
    • B01DSEPARATION
    • B01D50/00Combinations of devices for separating particles from gases or vapours
    • B01D50/008Combinations of devices relating to groups B01D45/00 and B01D46/00 and B01D47/00
    • BPERFORMING OPERATIONS; TRANSPORTING
    • B01PHYSICAL OR CHEMICAL PROCESSES OR APPARATUS IN GENERAL
    • B01DSEPARATION
    • B01D53/00Separation 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
    • B01D53/002Separation 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 by condensation
    • BPERFORMING OPERATIONS; TRANSPORTING
    • B01PHYSICAL OR CHEMICAL PROCESSES OR APPARATUS IN GENERAL
    • B01DSEPARATION
    • B01D2258/00Sources of waste gases
    • B01D2258/06Polluted air

Abstract

The present invention discloses a kind of air cleaning and wet flue gas dehumidification device, wet flue gas initially enters spray mixed cell, cool down after spray head sprays and is sufficiently mixed with spray water mist, mixed wet flue gas enters high speed stripping unit, pure air centrifugal force is small, stopped by storehouse in high-speed rotating removing, directly it is discharged by exhaust passage, partial air and droplet pass through remove in storehouse be thrown toward and remove the inner wall formation water flow in outer storehouse and flow down, part fine mist and air form the higher air stream of water capacity, into dehumidification by condensation unit, dehydration in air forms moisture film and water flow, wet flue gas still containing part fine drop is finally imported into inertial separation unit and implements separation, treated pure air is discharged via exhaust passage, complete the overall process of wet flue gas dehumidifying and air cleaning.Entire purification dehumidification process windage is lower, meets the requirement of flow at high speed, big handling capacity processing wet flue gas, and dehumidifies while purifying air to wet flue gas.

Description

A kind of air cleaning and wet flue gas dehumidification device
Technical field
The present invention relates to technical field of air purification, more particularly to a kind of air cleaning and wet flue gas dehumidification device.
Background technique
In recent years, it is got worse the problem of air pollution, there are many existing air purifying process type, for example, filtering technique, Scrubbing tower, moisture film fresh air technology, using cyclone dust removal as inertial separation dedusting technology of representative etc..Wherein, the inertia of cyclone dust removal Isolation technics is to complete air cleaning operation using the high-speed motion mechanism of fluid, and other purification techniques are all or actively or passively Air purifying operation is realized as condition to reduce flow velocity in ground.Filtering technique is by the interception of filter medium, inertia, diffusion, again The retention of the effects such as power, electrostatic and absorption suspended particulate, allow pure air to pass through, but filtering technique passively improves wind Resistance improves air purification efficiency and precision as cost to reduce air velocity.Scrubbing tower, moisture film technology purification techniques, are chiefly used in Combustion tail gas, chemical industry and indoor air purification, in scrubbing tower, eminence atomizer is spraying downwards, and washing water flow is in weight Power effect is lower to be in contact with each other chance along the air reverse flow increase that filler is flowed downward and flowed up, by water flow absorption and band The impurity component in air is walked, but speed air flow cannot be excessively high, in case washing water is entrained by the flow of air, so, scrubbing tower is past Air velocity is initiatively reduced toward enlarged diameter.Cyclone dust removal mechanism is that dust-contained airflow is made to rotate, by means of centrifugal force Grit is separated to from air-flow and is trapped in wall, then so that grit is fallen into ash bucket by gravity, cyclone dust collection technology needs Air-flow high-speed motion increases centrifugal force, expands the otherness separation and purification air of suspended particulate and air in terms of centrifugal force, The bulky grain effect that cyclone dust collectors separate in air is good, lower to the separative efficiency of lesser solid particle.
High-temperature flue gas is also the one of the major reasons for causing haze, wet flue gas refer to largely discharge contain vapor, liquid The industrial waste gas of state particle, for example, coal-fired flue-gas contains the water capacity of a large amount of desulphurization denitration solution after wet desulphurization denitration Higher flue gas, wet flue gas have the characteristics that saturation water capacity is big, temperature is high and complicated component, are formed after wet desulphurization denitration Eye-catching " white plumage cigarette " can be formed on high from the exhaust gas of smoke stack emission, this is by taking off in flue gas containing the desulfurization being largely saturated Caused by nitre solution, these solution are spread in the sky, form long diffusion pinniform white flow of flue gas, and white plumage cigarette carries Considerable desulphurization denitration solution, steam will appear the indiscoverable a large amount of fine solid particle objects of naked eyes and drifts with the wind after disappearing.It is existing There is the air cleaning unit in technology while purifying air particle, cannot be considered in terms of wet flue gas takes off white processing.
Therefore, how to change in the prior art, common purifying device can not combine high temperature wet flue gas and big flow is more Component pollutes the status of air-treatment, is those skilled in the art's urgent problem to be solved.
Summary of the invention
The object of the present invention is to provide a kind of air cleaning and wet flue gas dehumidification devices, exist to solve the above-mentioned prior art The problem of, so that purification device is dehumidified high temperature wet flue gas, while air can be polluted to big flow multicomponent and carried out Purification.
To achieve the above object, the present invention provides following schemes: the present invention provides a kind of air cleaning and wet flue gas removes Wet device, including the spray mixed cell being connected and high speed stripping unit, the spray mixed cell is connected with inlet pipeline It is logical, spray head is provided in the spray mixed cell, the spray mixed cell can carry out spray drop to the wet flue gas of introducing Temperature, the high speed stripping unit are connected with exhaust passage;The high speed stripping unit includes storehouse in removing outer storehouse and removing, described The outside that outer storehouse is sleeved on storehouse in the removing is removed, there is gap between storehouse in the outer storehouse of the removing and the removing, it is described Filter medium is set on the side wall in storehouse in removing, storehouse can rotate in the removing, the spray mixed cell and the exhaust Channel is connected with the inner cavity in storehouse in the removing;
The outer storehouse of the removing is connected with the gap between storehouse in the removing with dehumidification by condensation unit, the dehumidification by condensation Unit can enable the condensate moisture in flue gas, and the dehumidification by condensation unit is connected with inertial separation unit, the inertial separation list Member can separate the drop in wet flue gas, and the outlet of the inertial separation unit is connected with the exhaust passage.
Preferably, air cleaning and wet flue gas dehumidification device further include secondary stripping unit, the outlet of the exhaust passage It is connected with the secondary stripping unit, the secondary stripping unit is identical as the structure of the high speed stripping unit.
Preferably, air cleaning and wet flue gas dehumidification device further include secondary inertial separation unit, the exhaust passage Outlet is connected with the secondary inertial separation unit, the structure of the secondary inertial separation unit and the inertial separation unit It is identical.
Preferably, import air-introduced machine is set at the inlet pipeline, and setting air vacuum pumps at the exhaust passage.
Preferably, air cleaning and wet flue gas dehumidification device further include confluence pond, the high speed stripping unit, the condensation Dehumidifying element and the inertial separation unit are connected with the confluence pond respectively.
Preferably, the filter medium is porous material.
Preferably, it is connected at the top of the high speed stripping unit and the dehumidification by condensation unit, the dehumidification by condensation list The bottom of member is connected with the inertial separation unit, and more condenser pipes, the condenser pipe are arranged in the dehumidification by condensation unit Between have gap.
Preferably, the spray head is atomizer, and the atomizer is connected with external water source.
The present invention achieves following technical effect compared with the existing technology: air cleaning of the invention and wet flue gas dehumidifying dress It sets, including the spray mixed cell being connected and high speed stripping unit, sprays mixed cell and be connected with inlet pipeline, spray is mixed It closes and is provided with spray head in unit, spray mixed cell can carry out spraying cooling to the wet flue gas of introducing, and high speed stripping unit connects It is connected to exhaust passage;High speed stripping unit includes storehouse in removing outer storehouse and removing, and removes outer storehouse and is sleeved on the outside for removing interior storehouse, Removing outer storehouse and removing has gap between interior storehouse, filter medium is arranged in removing on the side wall in storehouse, and removing interior storehouse can rotate, Spray mixed cell and exhaust passage are connected with the inner cavity for removing interior storehouse;Gap in removing outer storehouse and removing between storehouse and Dehumidification by condensation unit is connected, and dehumidification by condensation unit can enable the condensate moisture in flue gas, and dehumidification by condensation unit is connected with inertia Separative unit, inertial separation unit can separate the drop in wet flue gas, and the outlet and exhaust of inertial separation unit are logical Road is connected.Wet flue gas initially enters spray mixed cell, cools down after spray head sprays and is sufficiently mixed with spray water mist, mixes Wet flue gas afterwards enters high speed stripping unit, and pure air centrifugal force is small, is stopped by storehouse in high-speed rotating removing, directly by arranging The discharge of gas channel, partial air and droplet pass through remove in storehouse be thrown toward and remove the inner wall in outer storehouse and form water flow and flow down, partially carefully Small droplet and air form the higher air stream of water capacity, and into dehumidification by condensation unit, the dehydration in air forms moisture film And water flow, the wet flue gas still containing part fine drop is finally imported into inertial separation unit and implements separation, treated pure Net air is discharged via exhaust passage, completes the overall process of wet flue gas dehumidifying and air cleaning.Entire purification dehumidification process wind It hinders lower, meets the requirement of flow at high speed, big handling capacity processing wet flue gas, and wet flue gas is removed while purifying air It is wet.
Detailed description of the invention
It in order to more clearly explain the embodiment of the invention or the technical proposal in the existing technology, below will be to institute in embodiment Attached drawing to be used is needed to be briefly described, it should be apparent that, the accompanying drawings in the following description is only some implementations of the invention Example, for those of ordinary skill in the art, without any creative labor, can also be according to these attached drawings Obtain other attached drawings.
Fig. 1 is the overall structure diagram of air cleaning of the invention and wet flue gas dehumidification device;
Fig. 2 is the overall structure signal in air cleaning of the invention and wet flue gas dehumidification device other specific embodiments Figure;
Fig. 3 is the overall structure signal in air cleaning of the invention and another specific embodiment of wet flue gas dehumidification device Figure;
Overall structure diagram when Fig. 4 is air cleaning of the invention and wet flue gas dehumidification device raising efficiency of dust collection.
Wherein, 1 is spray mixed cell, and 2 be high speed stripping unit, and 3 be dehumidification by condensation unit, and 4 be inertial separation unit, 5 be import air-introduced machine, and 6 be exhaust passage, and 7 be storehouse in removing, and 8 pump to remove outer storehouse, 9 for air vacuum, and 10 be pond of converging, 11 It is secondary inertial separation unit for secondary stripping unit, 12.
Specific embodiment
Following will be combined with the drawings in the embodiments of the present invention, and technical solution in the embodiment of the present invention carries out clear, complete Site preparation description, it is clear that described embodiments are only a part of the embodiments of the present invention, instead of all the embodiments.It is based on Embodiment in the present invention, it is obtained by those of ordinary skill in the art without making creative efforts every other Embodiment shall fall within the protection scope of the present invention.
The object of the present invention is to provide a kind of air cleaning and wet flue gas dehumidification devices, exist to solve the above-mentioned prior art The problem of, so that purification device is dehumidified high temperature wet flue gas, while air can be polluted to big flow multicomponent and carried out Purification.
In order to make the foregoing objectives, features and advantages of the present invention clearer and more comprehensible, with reference to the accompanying drawing and specific real Applying mode, the present invention is described in further detail.
Please refer to Fig. 1-4, wherein Fig. 1 is air cleaning of the invention and the overall structure signal of wet flue gas dehumidification device Figure, Fig. 2 are the overall structure diagram in air cleaning of the invention and wet flue gas dehumidification device other specific embodiments, figure 3 be the overall structure diagram in air cleaning of the invention and another specific embodiment of wet flue gas dehumidification device, and Fig. 4 is this The air cleaning of invention and wet flue gas dehumidification device improve overall structure diagram when efficiency of dust collection.
The present invention provides a kind of air cleaning and wet flue gas dehumidification device, including the spray mixed cell 1 and height being connected Fast stripping unit 2, spray mixed cell 1 are connected with inlet pipeline, spray and are provided with spray head in mixed cell 1, spray mixing Unit 1 can carry out spraying cooling to the wet flue gas of introducing, and high speed stripping unit 2 is connected with exhaust passage 6;High speed stripping unit 2 include removing storehouse 7 in inside and outside storehouse 8 and removing, removes inside and outside storehouse 8 and is sleeved on the outside for removing interior storehouse 7, removes inside and outside storehouse 8 and stripping It from having gap between interior storehouse 7, removes and filter medium is set on 7 side wall of interior storehouse, removing interior storehouse 7 can rotate, spray mixing list Member 1 and exhaust passage 6 are connected with the inner cavity for removing interior storehouse 7;Gap in removing inside and outside storehouse 8 and removing between storehouse 7 with it is cold Solidifying Dehumidifying element 3 is connected, and dehumidification by condensation unit 3 can enable the condensate moisture in flue gas, and dehumidification by condensation unit 3 is connected with inertia Separative unit 4, inertial separation unit 4 can separate the drop in wet flue gas, the outlet and exhaust of inertial separation unit 4 Channel 6 is connected.
Wet flue gas is first directed to spray mixed cell 1, cools down after spray head sprays and is sufficiently mixed with spray water mist, mixes Wet flue gas afterwards enters high speed stripping unit 2, and pure air centrifugal force is small, is stopped by storehouse 7 in high-speed rotating removing, directly by Exhaust passage 6 is discharged, and partial air and the droplet filter medium in storehouse 7 in removing are thrown toward the inner wall shape for removing inside and outside storehouse 8 It is flowed down at water flow, part fine mist and air form the higher air stream of water capacity, into dehumidification by condensation unit 3, in air Dehydration form moisture film and water flow, it is real that the wet flue gas still containing part fine drop is finally imported into inertial separation unit 4 Separation is applied, treated pure air is discharged via exhaust passage 6, completes the full mistake of wet flue gas dehumidifying and air cleaning Journey.Entire purification dehumidification process windage is lower, meets the requirement of flow at high speed, big handling capacity processing wet flue gas, and empty in purification It dehumidifies while gas to wet flue gas.Herein it should be noted that being in the prior art used by inertial separation unit 4 Inertial separation machine, when using air-flow reef it in or with the collision such as baffle, the operation that particle is separated from air-flow, The separation of fine drop is completed, therefore, details are not described herein again for the specific structure of inertial separation unit 4.
In other specific embodiments of the invention, white efficiency is taken off in order to further increase air cleaning and wet flue gas, Air cleaning and wet flue gas dehumidification device further include secondary stripping unit 11, the outlet of exhaust passage 6 and secondary stripping unit 11 It is connected, secondary spin-drying can be carried out to air derived from exhaust passage 6, by untreated clean drop and particulate pollutant Further separation, is discharged clean air, and secondary stripping unit 11 is identical as the structure of high speed stripping unit 2.
In another embodiment of the present invention, for the purposes of further increasing to further increase air cleaning And wet flue gas takes off white efficiency, air cleaning and wet flue gas dehumidification device further include secondary inertial separation unit 12, exhaust passage 6 Outlet is connected with secondary inertial separation unit 12, carries out secondary inertial separation to air derived from exhaust passage 6, can also be used Untreated clean drop and particulate pollutant are made further separating treatment by cyclonic separation machine, improve degree of purification, and two Secondary inertial separation unit 12 is identical as the structure of inertial separation unit 4.
It should be noted that it is higher to form water capacity via part fine mist derived from high speed stripping unit 2 and air Air stream, can also first import inertial separation unit 4, since water capacity is higher, the more former solid particle size of drop increases, and is easy Attachment film forming, 4 efficiency of inertial separation unit greatly improve, and are conducive to inhibit solid particle secondary precipitation, enhancing air cleaning effect Rate specifically please refers to Fig. 4.
Specifically, import air-introduced machine 5 is set at inlet pipeline, and setting air vacuum pumps 9 at exhaust passage 6, passes through air inducing Power traction stream, and water conservancy diversion is carried out to air using the negative pressure that air vacuum pump 9 generates, make wet flue gas smooth flow.
More specifically, air cleaning and wet flue gas dehumidification device further include confluence pond 10, high speed stripping unit 2, condensation are removed Wet unit 3 and inertial separation unit 4 are connected with confluence pond 10 respectively, high speed stripping unit 2, dehumidification by condensation unit 3 and inertia The mixing water that separative unit 4 flows out is gathered in confluence pond 10, and the mixed liquor a part collected in pond 10 of converging is handled through cooling After can be re-used as shower water, rest part discharges outward.
In this embodiment, filter medium is the porous material of large specific surface area, and porous material is the prior art, It is not elaborated herein.
Further, high speed stripping unit 2 is connected with the top of dehumidification by condensation unit 3, the bottom of dehumidification by condensation unit 3 It is connected with inertial separation unit 4, more condenser pipes is set in dehumidification by condensation unit 3, there is gap between condenser pipe.
Spray head is atomizer, and atomizer is connected with external water source.Atomizer enhance spray water mist and gas and The exposure level of particulate matter improves cooling efficiency.
High temperature wet flue gas experienced spray mixed cell 1, high speed stripping unit 2, dehumidification by condensation unit 3 and inertial separation list Member 4.The wet flue gas of introducing initially enters spray mixed cell 1 under the action of air-introduced machine, and wet flue gas is cooled down, and and shower water Mist is sufficiently mixed;Mixed wet flue gas imports high speed stripping unit 2, and pure air centrifugal force is small, by high-speed rotating filtering Dielectric impedance, square exhaust passage 6 is discharged directly up, droplet and partial air pass through remove in storehouse 7 filter medium get rid of to The inner sidewall for removing inside and outside storehouse 8 forms downlink water flow, and part fine mist and air form the higher air stream of water capacity, empty 9 suction function of gas vacuum pump imports dehumidification by condensation unit 3, and the moisture in air is precipitated under the cooling effect of cooling tube forms water Film and downlink water flow;Wet flue gas still containing part fine drop is finally imported into inertial separation unit 4 and implements separation, by place The pure air of reason by the pure air of exhaust passage 6 and high speed stripping unit 2 converge so complete wet flue gas removing take off it is white Overall process, converges from the outflux of the lower part of several units and shower water and wet flue gas out takes off white mixing water and concentrate on converging Pond 10.
Specific examples are applied in the present invention, and principle and implementation of the present invention are described, above embodiments Illustrate to be merely used to help understand method and its core concept of the invention;At the same time, for those skilled in the art, according to According to thought of the invention, there will be changes in the specific implementation manner and application range.In conclusion the content of the present specification It should not be construed as limiting the invention.

Claims (8)

1. a kind of air cleaning and wet flue gas dehumidification device, it is characterised in that: including the spray mixed cell being connected and high speed Stripping unit, the spray mixed cell are connected with inlet pipeline, are provided with spray head, the spray in the spray mixed cell Spraying cooling can be carried out to the wet flue gas of introducing by drenching mixed cell, and the high speed stripping unit is connected with exhaust passage;It is described High speed stripping unit includes storehouse in removing outer storehouse and removing, and the outer storehouse of the removing is sleeved on the outside in storehouse in the removing, described Removing has gap between storehouse in outer storehouse and the removing, filter medium, the removing is arranged on the side wall in storehouse in the removing Interior storehouse can rotate, and the spray mixed cell and the exhaust passage are connected with the inner cavity in storehouse in the removing;
The outer storehouse of the removing is connected with the gap between storehouse in the removing with dehumidification by condensation unit, the dehumidification by condensation unit The condensate moisture in flue gas can be enabled, the dehumidification by condensation unit is connected with inertial separation unit, the inertial separation unit energy Enough to separate to the drop in wet flue gas, the outlet of the inertial separation unit is connected with the exhaust passage.
2. air cleaning according to claim 1 and wet flue gas dehumidification device, it is characterised in that: further include that secondary removing is single Member, the outlet of the exhaust passage are connected with the secondary stripping unit, and the secondary stripping unit and the high speed are removed The structure of unit is identical.
3. air cleaning according to claim 1 and wet flue gas dehumidification device, it is characterised in that: further include secondary inertia point From unit, the outlet of the exhaust passage is connected with the secondary inertial separation unit, the secondary inertial separation unit with The structure of the inertial separation unit is identical.
4. air cleaning according to claim 1 and wet flue gas dehumidification device, it is characterised in that: set at the inlet pipeline Import air-introduced machine is set, setting air vacuum pumps at the exhaust passage.
5. air cleaning according to claim 1 and wet flue gas dehumidification device, it is characterised in that: further include confluence pond, institute High speed stripping unit, the dehumidification by condensation unit and the inertial separation unit is stated to be connected with the confluence pond respectively.
6. air cleaning according to claim 1 and wet flue gas dehumidification device, it is characterised in that: the filter medium is more Hole material.
7. air cleaning according to claim 1 and wet flue gas dehumidification device, it is characterised in that: the high speed stripping unit It is connected at the top of the dehumidification by condensation unit, the bottom of the dehumidification by condensation unit is connected with the inertial separation unit It is logical, more condenser pipes are set in the dehumidification by condensation unit, there is gap between the condenser pipe.
8. air cleaning according to claim 1 and wet flue gas dehumidification device, it is characterised in that: the spray head is atomization spray Head, the atomizer are connected with external water source.
CN201811093414.8A 2018-09-19 2018-09-19 Air purification and wet flue gas dehumidification device Active CN109045918B (en)

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Cited By (1)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
CN111569578A (en) * 2020-05-27 2020-08-25 刘毅 Fog stripping fan and dynamic demisting system

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Publication number Priority date Publication date Assignee Title
US4110088A (en) * 1976-06-18 1978-08-29 Cold David M Apparatus and method for removal of pollutants from flue gas
CN2552584Y (en) * 2001-12-18 2003-05-28 周明连 Tubular purifier
JP2004337694A (en) * 2003-05-14 2004-12-02 Takayoshi Imai Dehumidification apparatus
CN102481504A (en) * 2009-06-11 2012-05-30 Ntnu技术转移股份有限公司 A separator for a gas/liquid flow
CN102580408A (en) * 2012-03-20 2012-07-18 杨东进 Active centrifugal gas-liquid separation device
CN204447666U (en) * 2015-02-05 2015-07-08 陈相荣 A kind of smoke condensation device with dust-removal and desulfurizing denitration function
CN105107352A (en) * 2015-07-21 2015-12-02 无锡翱翔环保机械有限公司 Wet two-stage cyclone desulfurization tower

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* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
US4110088A (en) * 1976-06-18 1978-08-29 Cold David M Apparatus and method for removal of pollutants from flue gas
CN2552584Y (en) * 2001-12-18 2003-05-28 周明连 Tubular purifier
JP2004337694A (en) * 2003-05-14 2004-12-02 Takayoshi Imai Dehumidification apparatus
CN102481504A (en) * 2009-06-11 2012-05-30 Ntnu技术转移股份有限公司 A separator for a gas/liquid flow
CN102580408A (en) * 2012-03-20 2012-07-18 杨东进 Active centrifugal gas-liquid separation device
CN204447666U (en) * 2015-02-05 2015-07-08 陈相荣 A kind of smoke condensation device with dust-removal and desulfurizing denitration function
CN105107352A (en) * 2015-07-21 2015-12-02 无锡翱翔环保机械有限公司 Wet two-stage cyclone desulfurization tower

Cited By (1)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
CN111569578A (en) * 2020-05-27 2020-08-25 刘毅 Fog stripping fan and dynamic demisting system

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