Droplet Separators

Mist Eliminators

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Lechler Made-to-measure for yourapplication.

Working closely with plantoperators and with scientificinstitutes, Lechler has devel-oped a variety of mist elimin- ators that exactly meet the

above-mentioned require-ments and they have provedto be highly successful inmany fields of industry: inreducing environmental pollu-tion from existing plants, ingas-washing installations, inthe chemical and woodpulpindustries, on offshore rigs, inair-conditioning and ventilationsystems, in cooling towers andin evaporative condensers - infact, wherever it is necessaryto separate droplets of liquidreliably and effectively solu-tion, that is why each

Lechler Vital elements in many processing operations.

played a vital role in manyprocess operations and in gaswashing plants. They becomeeven more important nowthrough the imposition of evermore stringent environmentalprotection regulations thatnecessitate a drastic reductionin the pollutants carried by thegases leaving gas-washingplants.

Such regulations make it nec-essary to install high-perfor-mancewhile generating as little pres-sure loss as possible, arecapable of arresting even thefinest droplets, often with adiameter of less than 10 μm.

Such an objective calls for aseparation system with only afew components that is capableof dealing with high flow rates.

Chemical industry

Power plant (EON)

Pulp and paper industry (KVAERNER PULPING)

Made-to-measure solutionsMist eliminators from Lechler

mist eliminators mist eliminators.

Mist eliminators have long

mist eliminators that,

mist eliminator is made to measure.

Lechler Mist Eliminator 8_5x11 hr.pdf 1 9/28/2018 3:47:02 PM

3

It is necessary to the designand planning of mist elimin- ators to have a thoroughunderstanding of the functionand performance of the vari-ous separation system as wellas a good understanding ofthe process in which themist eliminator will be incor- porated. It is of great impor-tance when designing amist eliminator to have an understanding of how dropletsare generated and of how theyare transported in a flow ofgas. We can honestly say thatwe know as much or more inthis respect than any other, forwe have been engaged in thedetection, measurement anddefinition of droplets for morethan 125 years. It is not without reason that Lechler mist eliminators have become suchessential elements in almostevery field of process engineering.As a means of determining theperformance data of Lechlerhigh-performance mist

eliminators we use our ownlaboratory facilities equippedwith the most up-to-date mea-surement equipment that isoften of our own design. Forexample, the droplet-particleanalyser, which simultaneous-ly measures and immediatelyevaluates the size and velocityof droplets, or the high speedcamera which photographsdroplets "in flight". Apart fromour own facilities, we use awide range of measuringequipment of many scientificinstitutes.Many measurements made onsite in plants already in opera-tion have proved the high per-formance of Lechler misteliminators and their superiordesign.

In the design phase of a vane-type separator it is of greatimportance for Lechler toknow the nature of the medi-um from which the dropletshave to be separated and ofthe liquid of which the droplets

are composed. Lechler's com-puter-aided design is basedon this information and ondata of water-air systemsmeasured under normal con-ditions.

The working point on theimpact surface is determinedwith the aid of a special trans-formation equation. This equa-tion makes allowance for all

process-engineering parame-ters. It was developed on thebasis of natural laws and itsvalidity was confirmed throughlaboratory and field tests.

In addition, calculate the an-ticipated pressure loss, thedegree of separation, thedroplet flight path, and othertechnical data the user mayneed for the design of his plant.

Measurement equipment: Laser-Doppler particle analyzer Film development on a baffle vane

Measurement at mist eliminator laboratory

It is necessary to the designand planning of droplet sepa-rators to have a thoroughunderstanding of the functionand performance of the vari-ous separation system as wellas a good understanding ofthe process in which thedroplet separator will be incor-porated. It is of great impor-tance when designing adroplet separator to have anunderstanding of howdropletsare generated and of howtheyare transported in a flowofgas. We can honestly say thatwe knowas much or more inthis respect than any other, forwe have been engaged in thedetection, measurementanddefinition of droplets for morethan 125 years. It is notwithoutreason that Lechler dropletseparators have become suchessential elements in almostevery field of processengineering.As a means of determining theperformance data of Lechlerhigh-performance droplet

Lechler measurement engineering –The basis for the reliable function ofmist eliminators

separators we use our ownlaboratory facilities equippedwith the most up-to-date mea-surementequipment that isoften of our own design. Forexample, the droplet-particleanalyser, which simultaneous-ly measures and immediatelyevaluates the size and velocityof droplets, or the high speedcamera which photographsdroplets "in flight". Apart fromour own facilities, we use awide range of measuringequipment of many scientificinstitutes.Many measurements made onsite in plants already in opera-tion have proved the high per-formance of Lechler dropletseparators and their superiordesign.

In the design phase of a vane-type separator it is of greatimportance for Lechler toknowthe nature of the medi-um from which the dropletshave to be separated and ofthe liquid of which the droplets

are composed. Lechler's com-puter-aided design is basedon this information and ondata of water-air systemsmeasured under normal con-ditions.

The working point on theimpact surface is determinedwith the aid of a special trans-formation equation. This equa-tion makes allowance for all

process-engineering parame-ters. It was developed on thebasis of natural laws and itsvalidity was confirmed throughlaboratory and field tests.

In addition, calculate the an-ticipated pressure loss, thedegree of separation, thedroplet flight path, and othertechnical data the user mayneed for the design ofhis plant.

Measurement equipment: Laser-Doppler particle analyser Film development on a baffle vane

Measurementat droplet separator laboratory

Lechler Mist Eliminator 8_5x11 hr.pdf 1 9/28/2018 3:57:51 PM

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The functional principle- Primary separation- Secondary separation

Lechler vane-type separatorswork on the physical principleof inertia, and separation isthus effected in two stages:

n Primary separation andn Secondary separation

Primary separation

A flow of gas, laden withdroplets, flows through a bandof curved and speciallyformed baffle vanes. Forces ofinertia act upon the dropletswhile these are subject todirectional flow changes in thebaffle vanes. These forcesdivert the droplets from theoriginal gas flow.

The geometry of the bafflevanes, the nature of the gasand of the fluid, and the sizeand initial locations of a partic-ular droplet, determinewhether the gas will carry itthrough the space betweenthe baffle vanes, or whether itwill come in contact with oneof the separator surfaces.

Droplets that under given con-ditions come 100% in contactwith a baffle-vane and thenjoin with others to form a filmof liquid are designated "limitdroplets" are separated at thisstage. At the same time only asmall number of the smallerdroplets are separated at thisstage.The proportion of droplets car-ried on by the gas flow is des-ignated the "fractional degreeof separation" and serves as ameans of assessing the effi-ciency of a mist eliminatorsystem.

Secondary separation

The curvature and shape ofthe baffle vanes are such thatthe film of liquid formed ontheir surfaces as a result of pri-mary separation is completelyremoved from the gas flow.This is generally achieved bythe baffle vanes having spe-cially-formed phase-separa-tion chambers. Where dropletseparators are concerned thathave to work with as little pressure loss as possible, thebaffle vanes are provided witha series of grooves that act asphase separators.Depending on the application,the phase separation cham-bers differ in shape and size.Apart from directionalchanges in gas flow, the num-ber and form of the phaseseparation chambers consid-erably affect the pressure lossacross the mist eliminatorsystem.

Horizontal, vertical oroblique gas flow

Various vertical and horizontaltypes of Lechler high-perfor-mance mist eliminators areavailable, depending on thedirection in which the gas isrequired to flow. Where cir-cumstances demand, it is alsopossible to provide separatorsfor an oblique flow of gas.The choice of the suitable sep-arator depends on the designof the plant and other require-ments. The Lechler engineeringstaff will ensure the rightchoice and will be pleased toassist the customer in alldesign aspects.

Typical droplet flight paths in a horizontal separator

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The functional principle- Primary separation- Secondary separation

Lechler vane-type separatorswork on the physical principleof inertia, and separation isthus effected in two stages:

n Primary separation andn Secondary separation

Primary separation

A flow of gas, laden withdroplets, flows through a bandof curved and speciallyformed baffle vanes. Forces ofinertia act upon the dropletswhile these are subject todirectional flow changes in thebaffle vanes. These forcesdivert the droplets from theoriginal gas flow.

The geometry of the bafflevanes, the nature of the gasand of the fluid, and the sizeand initial locations of a partic-ular droplet, determinewhether the gas will carry itthrough the space betweenthe baffle vanes, or whether itwill come in contact with oneof the separator surfaces.

Droplets that under given con-ditions come 100% in contactwith a baffle-vane and thenjoin with others to form a filmof liquid are designated "limitdroplets" are separated at thisstage. At the same time only asmall number of the smallerdroplets are separated at thisstage.The proportion of droplets car-ried on by the gas flow is des-ignated the "fractional degreeof separation" and serves as ameans of assessing the effi-ciency of a droplet separationsystem.

Secondary separation

The curvature and shape ofthe baffle vanes are such thatthe film of liquid formed ontheir surfaces as a result of pri-mary separation is completelyremoved from the gas flow.This is generally achieved bythe baffle vanes having spe-cially-formed phase-separa-tion chambers. Where dropletseparators are concerned thathave to work with as littlepressure loss as possible, thebaffle vanes are provided witha series of grooves that act asphase separators.Depending on the application,the phase separation cham-bers differ in shape and size.Apart from directionalchanges in gas flow, the num-ber and form of the phaseseparation chambers consid-erably affect the pressure lossacross the droplet separationsystem.

Horizontal, vertical oroblique gas flow

Various vertical and horizontaltypes of Lechler high-perfor-mance droplet separators areavailable, depending on thedirection in which the gas isrequired to flow. Where cir-cumstances demand, it is alsopossible to provide separatorsfor an oblique flow of gas.The choice of the suitable sep-arator depends on the designof the plant and other require-ments. The Lechler engineeringstaff will ensure the rightchoice and will be pleased toassist the customer in alldesign aspects.

Typical droplet flight paths in a horizontal separator

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Mist Eliminators with vertical gas flow

In vane-type mist eliminators with a vertical gas flow the baffle vanes are arranged hor-izontally or at a slight angle tothe horizontal. Since the gasflows upwards in the oppositedirection, it is necessary for thebaffle vanes to be designed sothat certain regions arebypassed by the gas flow.Thus zones are provided inwhich the droplets can be col-lected without interaction withthe gas. These zones also pro-vide a secure diversion of thecollected liquid from the sur-face of the vanes. This require-ment can be met in variousways and in function of theprofile and shape of the vanes.

As the liquid has to flow in theopposite direction to the gas,the film of liquid that forms onthe vane has to be converted

back to droplets. To preventoverstressing of the system bydroplets being picked up andrecirculated by the gas flow,these droplets must be sub-stantially larger than those car-ried into the separator by thegas.

Functional principle of a horizontal separatorFunctional principle of a vertical separator

Mist Eliminators with horizontal gas flow

Vane-type mist eliminatorsfor a horizontal gas flow havea system of vertical bafflevanes. The provision for sec-ondary separation is of a dif-ferent design from that of sep-arators for vertical gas flow.

When the flow of gas is hori-zontal the baffles stand verti-cally and the liquid film thatforms on them flows down-wards by gravity. The provi-sion of regions, before orbehind the phase-separationchambers, that are bypassedby the gas flow, enable the liq-uid film to flow off the baffleswithout renewed contact withthe gas.

The fact that the flow-off isassisted by gravity results inmist eliminators with a particularly high performance.

Depending on the separator,gas-flow rates of up to 10 m/scan be achieved.

The baffles can be shaped forparticularly satisfactory gasflow characteristics, thereforethe pressure loss across suchseparators is remarkably now.

To suit the needs of each par-ticular application, a choicecan be made from a finelystaged range of baffle-vanetypes with a simple or multiplegas-flow diversion.

The functional principle - Vertical or horizontal gas flow

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The LTH 100 is well provenwith its many sided applicationand combination capabilities.The plastic sinusoidally corru-gated profile plate with pro-truding phase separationchambers, reaches a highseparation performance overa wide gas flow velocity spectrum.

Minimal pressure loss, highhydraulic separation capacity,and a low fouling tendencymake the LTH 100 a universallyinstallable, decades proven,drop separator system, especially in the waste gasestreatment area.

We deliver the LTH 100 to youin many different configurations:

As a complete housing unitto be connected to yourexisting pipe systems or asa frame unit for installationinto your current construc-tion site.In a light package con-struction or in a stabileprofile frame unit for thehighest demands.In a one-stage design ormultiple staged with arinsing system.With larger distances bet-ween the separator profilesfor separating with high solidparticle contents or withsmaller distances for sepa-rating the finest of droplets.

With the LTH 100 from Lechler,you have the flexible separatorsystem for the optimal fulfill-ment for your demands andwishes.

We would be happy to sendyou a copy of our technicaldata sheet on the LTH 100.

LTH 100 beeing installed in a flue-gasdesulphurization plant

Installed LTH 100 in a flue-gas desulphurization plant

LTH100 with housing

LTH 100 profile geometry

Lechler mist eliminator for horizontal gas flow Type LTH 100

The LTH 100 is well provenwith its many sided applicationand combination capabilities.The plastic sinusoidally corru-gated profile plate with pro-truding phase separationchambers, reaches a highseparation performance overa wide gas flow velocityspectrum.

Minimal pressure loss, highhydraulic separation capacity,and a low fouling tendencymake the LTH 100 a universallyinstallable, decades proven,drop separator system,especially in the waste gasestreatment area.

We deliver the LTH 100 to youin many different configurations:

As a complete housing unitto be connected to yourexisting pipe systems or asa frame unit for installationinto your current construc-tion site.In a light package con-struction or in a stabileprofile frame unit for thehighest demands.In a one-stage design ormultiple staged with arinsing system.With larger distances bet-ween the separator profilesfor separating with high solidparticle contents or withsmaller distances for sepa-rating the finest of droplets.

With the LTH 100 from Lechler,you have the flexible separatorsystem for the optimal fulfill-ment for your demands andwishes.

We would be happy to sendyou a copy of our technicaldata sheet on the LTH 100.

LTH 100 beeing installed in a flue-gasdesulphurization plant

Installed LTH 100 in a flue-gas

LTH100 with housing

LTH 100 profile geometry

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The type series LTH 600includes four, exclusively stain-less steel profile geometry’s.From type LTH 601 to the LTH 604, in each series is anincreasing number of separa-tion effective inversions of thegas flow. Through these grad-uations and the variable dis-tances between the separationprofiles, you can achieve thebest possible fine tuning tomeet the specific demands foryour operations.

The most widely used profileshape, the LTH 603 with 3phase separation chambers,shows it superiority through itshigh hydraulic separationcapacity. It attains a highdegree of separation and isalso suitable for high gas flowvelocities.

The LTH 600 is is used inevery place where temperatureor corrosion resistant stainlesssteel is required, and the finestdroplets need to be assuredlyand effectively removed fromhorizontal gas flow.

LTH 601 to 604 profile geometry

For example in the pulp andpaper industry, in sugar andchemical industry for the usein evaporators, condensers,scrubbers etc.

We can deliver the LTH 600tailored to your needs:

As a complete housing unitfor direct connection toyour existing pipes.As an ready to install frameunit to be built into yourcurrent construction site.As a sectional frame unit,which can be installedthrough a manholeentrance to your vessel.

With the Lechler LTH 600, youalways have the right profilefor the right situation!

We would be happy to sendyou a copy of our technicaldata sheet on the LTH 600.

LTH 600 with frame, sectional design

LTH 600 with housing

LTH 600 with frame

Lechler mist eliminator for horizontal gas flow Type LTH 600

The type series LTH 600includes four, exclusively stain-less steel profile geometry’s.From type LTH 601 to theLTH 604, in each series is anincreasing number of separa-tion effective inversions of thegas flow. Through these grad-uations and the variable dis-tances between the separationprofiles, you can achieve thebest possible fine tuning tomeet the specific demands foryour operations.

The most widely used profileshape, the LTH 603 with 3phase separation chambers,shows it superiority through itshigh hydraulic separationcapacity. It attains a highdegree of separation and isalso suitable for high gas flowvelocities.

The LTH 600 is is used inevery place where temperatureor corrosion resistant stainlesssteel is required, and the finestdroplets need to be assuredlyand effectively removed fromhorizontal gas flow.

LTH 601 to 604 profile geometry

For example in the pulp andpaper industry, in sugar andchemical industry for the usein evaporators, condensers,scrubbers etc.

We can deliver the LTH 600tailored to your needs:

As a complete housing unitfor direct connection toyour existing pipes.As an ready to install frameunit to be built into yourcurrent construction site.As a sectional frame unit,which can be installedthrough a manholeentrance to your vessel.

With the Lechler LTH 600, youalways have the right profilefor the right situation!

We would be happy to sendyou a copy of our technicaldata sheet on the LTH 600.

LTH 600 with frame, sectional design

LTH 600 with housing

LTH 600 with frame

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LTV 271 profile geometry

Close-up view of the LTV 271 circular cut

LTV 271 circular cut

LTV 271 as a fine separator in a flue-gas desulphurization plant

LTV 271 during installation

Large separator areas can inthis way be assembled togeth-er out of handy sized, singularstandardized sections.

Through the use of our optionalclip connectors, "Fix-clip”, thepackages can be securedagainst slippage. Also deliver-able are special constructionssuch as cut-to-size round sec-tions for the optimal exploita-tion of the available space thestream cross-section.

With the LTV 271 from Lechler,you get proven, easy to han-dle separator technology in arobust construction.

We would be happy to sendyou a technical data sheet onthe LTV 271.

handling and the simple adap-tability to the constructional situation where it is to beinstalled.

Through the standardizedconstruction shape of the LTV 271, you have a cost-usefactor advantage and reducedordering-to-delivery times. Wedeliver the LTV 271 as a stan-dardized package in the stan-dard widths of 305, 610 and905 mm, with graduatedpackage lengths for the instal-lation through the usual manhole entrance sizes.

The LTV 271 is a proven, well-known separator systemmade of plastic. The charac-teristic guidance channels,which are integrated in theseparation profile assures theproper drainage of the sepa-rated liquid.

The LTV 271 has a wide fieldof uses; in the waste gas treat-ment, as a fine separator influe-gas desulphurizationplants, in evaporators andcolumns or in exhaust air sys-tems the LTV 271 is convincingthrough its problem free

Lechler mist eliminator for vertical gas flow Type LTV 271

LTV 271 profile geometry

Close-up view of the LTV 271circular cut

LTV 271 circular cut

LTV 271 during installation

Large separator areas can inthis way be assembled togeth-er out of handy sized, singularstandardized sections.

Through the use of our optionalclip connectors, "Fix-clip”, thepackages can be securedagainst slippage. Also deliver-able are special constructionssuch as cut-to-size round sec-tions for the optimal exploita-tion of the available space thestream cross-section.

With the LTV 271 from Lechler,you get proven, easy to han-dle separator technology in arobust construction.

We would be happy to sendyou a technical data sheet onthe LTV 271.

handling and the simple adap-tability to the constructionalsituation where it is to beinstalled.

Through the standardizedconstruction shape of theLTV 271, you have a cost-usefactor advantage and reducedordering-to-delivery times. Wedeliver the LTV 271 as a stan-dardized package in the stan-dard widths of 305, 610 and905 mm, with graduatedpackage lengths for the instal-lation through the usualmanhole entrance sizes.

The LTV 271 is a proven,well-known separator systemmade of plastic. The charac-teristic guidance channels,which are integrated in theseparation profile assures theproper drainage of the sepa-rated liquid.

The LTV 271 has a wide fieldof uses; in the waste gas treat-ment, as a fine separator influe-gas desulphurizationplants, in evaporators andcolumns or in exhaust air sys-tems the LTV 271 is convincingthrough its problem free

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The LTV 300 is characterizedby its superior separating performance even the finestdroplets and an extremelyhigh separating capacity.Through the special profilegeometry, there are small"drain off channels”, which,when they are installed in anangled position from 15°-60°,assure the removal of the sep-arated fluids out of the flowstream. The LTV 300, made ofplastic or stainless steel, findsusage in the waste gas treat-ment, in evaporators, inprocess gas cleaning and

LTV 300 profile geometry

similar uses. Wherever finestdroplets must be effectivelyseparated out of vertical gasstreams. The LTV 300 is deliv-ered in handy packages, thateasily fit into the installationarea where they then can beassembled into larger separa-tor areas.

In the special format LTV300.30.B (roof construction) ahorizontal support construc-tion is made possible.The round and angled cut LTV300 for angled installationfrom 15°-45° enables an

optimal exploitation of the flowcross section.

With the LTV 300 from Lechler,you get easy to handle, buthighly effective and safe sepa-rator technology.

We would be happy to sendyou a copy of the technicaldata sheet on the LTV 300.

LTV 300.30.B, for horizontal support constructions

LTV 300 in plastic, standard construction

LTV 300, round / angled cut, for 30° installation

LTV 300 in stainless steel

Lechler mist eliminator for vertical gas flow Type LTV 300

The LTV 300 is characterizedby its superior separatingperformance even the finestdroplets and an extremelyhigh separating capacity.Through the special profilegeometry, there are small"drain off channels”, which,when they are installed in anangled position from 15°-60°,assure the removal of the sep-arated fluids out of the flowstream. The LTV 300, made ofplastic or stainless steel, findsusage in the waste gas treat-ment, in evaporators, inprocess gas cleaning and

LTV 300 profile geometry

similar uses. Wherever finestdroplets must be effectivelyseparated out of vertical gasstreams. The LTV 300 is deliv-ered in handy packages, thateasily fit into the installationarea where they then can beassembled into larger separa-tor areas.

In the special format LTV300.30.B (roof construction) ahorizontal support construc-tion is made possible.The round and angled cut LTV300 for angled installationfrom 15°-45° enables an

optimal exploitation of the flowcross section.

With the LTV 300 from Lechler,you get easy to handle, buthighly effective and safe sepa-rator technology.

We would be happy to sendyou a copy of the technicaldata sheet on the LTV 300.

LTV 300.30.B, for horizontal

LTV 300 in plastic, standard construction LTV 300 in stainless steel

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The LTV 400 is an universalseparator system made ofplastic or stainless steel. Manyyears of separator technologyexperience have flown into theLTV 400.Through intensive develop-ment and optimizations in theprofile contours, the LTV 400achieves high separation val-ues, even without the addition-al drain off aids for the sepa-rated fluids.The resulting smooth profilehas a very low fouling tendencyand is easy to clean.The LTV 400 is particularlyflexible in its application possi-bilities because of its variable

LTV 400 profile geometry

package lengths and the different deliverable separationdistances of the separationprofiles.

The LTV 400 is especially rec-ommended where high sepa-ration capacities are needed,even with high solid particlecontents.It is often used in the treatmentof waste gases, (for example:coarse and fine separation influe-gas desulphurizationplants), in evaporators, con-densers (pulp and paperindustry, chemical industry)and similar uses.

Assembly of the LTV 400, plastic, in a flue-gas desulphurization plant

LTV 400 in stainless steel

LTV 400, stainless steel, shape "cake piece”

Installed LTV 400 in a flue-gas desulphurization plant

The LTV 400 can be deliveredin handy package units. Alsoavailable are special designs,such as round cut sections foroptimal exploitation of theavailable space in the flowcross section.

With the LTV 400, you get ahighly effective, easy to cleanseparator with further reachingconstruction possibilities foradaptability to your installationsituation.

We would be happy to sendyou a technical data sheet onthe LTV 400.

Lechler mist eliminator for vertical gas �ow Type LTV 400

The LTV 400 is an universalseparator system made ofplastic or stainless steel. Manyyears of separator technologyexperience have flown into theLTV 400.Through intensive develop-ment and optimizations in theprofile contours, the LTV 400achieves high separation val-ues, even without the addition-al drain off aids for the sepa-rated fluids.The resulting smooth profilehas a very low fouling tendencyand is easy to clean.The LTV 400 is particularlyflexible in its application possi-bilities because of its variable

LTV 400 profile geometry

package lengths and thedifferent deliverable separationdistances of the separationprofiles.

The LTV 400 is especially rec-ommended where high sepa-ration capacities are needed,even with high solid particlecontents.It is often used in the treatmentof waste gases, (for example:coarse and fine separation influe-gas desulphurizationplants), in evaporators, con-densers (pulp and paperindustry, chemical industry)and similar uses.

LTV 400 in stainless steel

LTV 400, stainless steel, shape "cake piece”

The LTV 400 can be deliveredin handy package units. Alsoavailable are special designs,such as round cut sections foroptimal exploitation of theavailable space in the flowcross section.

With the LTV 400, you get ahighly effective, easy to cleanseparator with further reachingconstruction possibilities foradaptability to your installationsituation.

We would be happy to sendyou a technical data sheet onthe LTV 400.

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A large variety of profiles for horizontal and vertical gas flow

LTV 110.33.-B in a wash tower

LTH 501, 502, 503, 504

LTV 203

LTV 110, view from the top, in a flue-gas desulphurization plant

Lechler has a large diversity inmany different separator profiles.We have therewith the optimalpossibility to solve your just asdiverse problems. Over andbeyond the already shownsystems on the previous pages,we would like to show you afew other of our proven profiles,a few of which can be seenhere in the pictures. For examplethe LTV 110.33.B, which hasproven itself for coarse sepa-ration in flue-gas desulphur-ization plants.Other types which can beordered and delivered withshort notice, are the models:n LTH 200n LTH 400n LTH 500n LTV 203n LTV 900Just ask for the right profile!

LTH 200 LTH 400

LTV 900

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A large variety of profiles for horizontal and vertical gas flow

LTV 110.33.-B in a wash tower

LTH 501, 502, 503, 504

LTV 203

LTV 110, view from the top, in a flue-gas desulphurization plant

Lechler has a large diversity inmany different separator profiles.We have therewith the optimalpossibility to solve your just asdiverse problems. Over andbeyond the already shownsystems on the previous pages,we would like to show you afew other of our proven profiles,a few of which can be seenhere in the pictures. For examplethe LTV 110.33.B, which hasproven itself for coarse sepa-ration in flue-gas desulphur-ization plants.Other types which can beordered and delivered withshort notice, are the models:n LTH 200n LTH 400n LTH 500n LTV 203n LTV 900Just ask for the right profile!

LTH 200 LTH 400

LTV 900

Complete ready for mounting mist eliminatorsindividal baffle elements - Lechler has the individual solution

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Each project calls for a specialdesign and arrangement ofdroplet separators. Thedesign, construction, and themanner in which the bafflesare arranged in a Lechlermist eliminator dependentirely on the requirements,details and specification of theproject. Lechler does not offera standard "off the shelf" solu-tion but designs and assem-bles the most suitable separatorfor each specific requirementutilising standard elements ofthe Lechler unit constructionsystem.

Mist eliminator in a stainless steel housing

Production of LTH 600

LTV 400 with support

Production of LTV 400

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Mini or maxi –Large variety of materials

Occasionally aggressive washsuspensions with different acidor alkaline concentrations areoften more than some materialscan withstand. To ensure areliable operation it is essentialto choose the right material tomeet the needs for each indi-vidual plant. Also here Lechlerwill advise the most suitablematerial for the construction ofthe mist eliminator so that itwill withstand the stressesimposed upon it by the specificapplication.

We offer systems constructedof the following materials:

n Stainless steels of qualities1.4301, 1.4541, 1.4571 andother special alloys.

n Plastics, such as PP, PPtv,GRP, PE, PVC, PVDF

LTH 600 with stainless steel housing

LTV 400, circular cutted, material PE UV-stabilized

LTH 100 with GRP housing

13

Mini or maxi –Large variety of materials

Occasionally aggressive washsuspensions with different acidor alkaline concentrations areoften more than some materialscan withstand. To ensure areliable operation it is essentialto choose the right material tomeet the needs for each indi-vidual plant. Also here Lechlerwill advise the most suitablematerial for the construction ofthe droplet separator so that itwill withstand the stressesimposed upon it by the specificapplication.

We offer systems constructedof the following materials:

n Stainless steels of qualities1.4301, 1.4541, 1.4571 andother special alloys.

n Plastics, such as PP, PPtv,GRP, PE, PVC, PVDF

LTH 600 with stainless steel housing

LTV 400, circular cutted, material PE UV-stabilized

LTH 100 with GRP housing

14

For extremely fine droplets –Lechler aerosol separators

Under special conditions itcan be necessary to separatedroplets which are much moresmaller than the limit drop sizeof a van-type separator. Inthose cases fibre packs withregulated or unregulatedstructure are used as aerosolseparator or as aerosolagglomerator in combinationwith vane-type separators.

For horizontal gas flow:agglomerator and vane-typeseparator

This combination of a fibrepack agglomerator in the firststage and a vane-type separa-tor as the second stage, offersspecial advantages.The allowed gas velocity of thevane-type separator permitssmall flow areas, which withan aerosol separator alonewould not be feasible. Theaerosol separator catches thehigh speed droplets, andguides them to the vane-typeseparator as agglomerated,larger drops. We can deliver this separatorcombination to you in plastic(PP, PVDF) or stainless steel(1.4301, 1.4571, etc.) in com-plete frame units, with or with-out housings. The diversecombination possibilities ofdifferent vane-type and fibrepack separators offers you awide spectrum of perfor-mance.

For vertical gas flow: thevane-type separator andaerosol separator

For vertical gas flow, we use avane-type separator as the firststage and an aerosol separa-tor as the second. This combi-nation has a higher separationperformance as the singlecomponents alone.So is for example the sensitivityof aerosol (fibre pack) separa- Fibre pack with regulated structure

Horizontal gas flow: vane-type separator with agglomerator

Demisec (detail)

Vertical gas flow: aerosol separator Demisec (view on top)

tors faced with a high watercontent quite unproblematic inthis combination. The firststage of vane-type separatorremoves the large dropsbefore they can reach theaerosol separator. The aerosolseparator can then be usedwith much higher gas veloci-ties as it is possible in a standalone solution. This results invery high separation efficien-cies even for the finest dropletsizes.

Lechler can deliver this sepa-ration concept in pre-fab unitswith the type nomenclature„Demisec“, for mounting onyour support systems. Whencovering larger areas, theunits can be connected toeach other.

Beside the choices of materials,plastic (PP, PVDF) and stain-less steel (1.4301, 1.4571 etc),the diverse combination ofpossibilities offer a very wideworking spectrum and thepossibility of adaptation tooperational changes and otherdemands.

14

For extremely fine droplets –Lechler aerosol separators

Under special conditions itcan be necessary to separatedroplets which are much moresmaller than the limit drop sizeof a van-type separator. Inthose cases fibre packs withregulated or unregulatedstructure are used as aerosolseparator or as aerosolagglomerator in combinationwith vane-type separators.

For horizontal gas flow:agglomerator and vane-typeseparator

This combination of a fibrepack agglomerator in the firststage and a vane-type separa-tor as the second stage, offersspecial advantages.The allowed gas velocity of thevane-type separator permitssmall flow areas, which withan aerosol separator alonewould not be feasible. Theaerosol separator catches thehigh speed droplets, andguides them to the vane-typeseparator as agglomerated,larger drops. We can deliver this separatorcombination to you in plastic(PP, PVDF) or stainless steel(1.4301, 1.4571, etc.) in com-plete frame units, with or with-out housings. The diversecombination possibilities ofdifferent vane-type and fibrepack separators offers you awide spectrum of perfor-mance.

For vertical gas flow: thevane-type separator andaerosol separator

For vertical gas flow, we use avane-type separator as the firststage and an aerosol separa-tor as the second. This combi-nation has a higher separationperformance as the singlecomponents alone.So is for example the sensitivityof aerosol (fibre pack) separa- Fibre pack with regulated structure

Horizontal gas flow: vane-type separator with agglomerator

Demisec (detail)

Vertical gas flow: aerosol separator Demisec (view on top)

tors faced with a high watercontent quite unproblematic inthis combination. The firststage of vane-type separatorremoves the large dropsbefore they can reach theaerosol separator. The aerosolseparator can then be usedwith much higher gas veloci-ties as it is possible in a standalone solution. This results invery high separation efficien-cies even for the finest dropletsizes.

Lechler can deliver this sepa-ration concept in pre-fab unitswith the type nomenclature„Demisec“, for mounting onyour support systems. Whencovering larger areas, theunits can be connected toeach other.

Beside the choices of materials,plastic (PP, PVDF) and stain-less steel (1.4301, 1.4571 etc),the diverse combination ofpossibilities offer a very wideworking spectrum and thepossibility of adaptation tooperational changes and otherdemands.

Lechler mist eliminators are designed to provide as little restriction as possible to the flow of gas. Where, however, the gas is heavily laden with dust, the solid particles mayadhere to or be baked ontothe baffles and thus affect theefficiency of the separator.

To ensure continuity of opera-tion and to avoid costly down-times it is desirable to install acleaning system. An arrange-ment that provides cyclicwashing of the mist elimina-tor through full-cone nozzlesmounted to the front and rearof the baffles has proved par-ticularly effective.

Such an arrangement increas-es reliability, avoids encrusta-tion, and ensures that the plantwill maintain its optimum effi-ciency over a very long period.

15

Eliminate contamination withLechler cleaning nozzles

Detail nozzle spray system

Spray pattern flat jet nozzle

Spray pattern full cone nozzle

LTH 100 with nozzles spraying

Nozzle spray system

Lechler droplet separators aredesigned to provide as littlerestriction as possible to theflow of gas. Where, however,the gas is heavily laden withdust, the solid particles mayadhere to or be baked ontothe baffles and thus affect theefficiency of the separator.

To ensure continuity of opera-tion and to avoid costly down-times it is desirable to install acleaning system. An arrange-ment that provides cyclicwashing of the droplet separa-tor through full-cone nozzlesmounted to the front and rearof the baffles has proved par-ticularly effective.

Such an arrangement increas-es reliability, avoids encrusta-tion, and ensures that the plantwill maintain its optimum effi-ciency over a very long period.

15

Eliminate contamination withLechler cleaning nozzles

Detail nozzle spray system

Spray pattern flat jet nozzle

Spray pattern full cone nozzle

LTH 100 with nozzles spraying

Nozzle spray system

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Belgium: Lechler S.A./N.V. · Avenue Mercatorlaan, 6 · 1300 Wavre · Phone: +32 10 225022 · Fax: +32 10 243901 · info@lechler.beChina: Lechler Intl. Trad. Co. Ltd. · Beijing · Rm. 418 Landmark Tower · No. 8 Dong San Huan Bei Lu · Phone: +86 10 84537968, Fax: +86 10 84537458 · info@lechler.com.cnFinland: Lechler Oy · Jäspilänkatu 18 · 04360 Kerava · Phone: +358 207 856880 · Fax: +358 207 856881 · info@lechler.fiFrance: Lechler France, S.A. · Bât. CAP2 · 66-72, Rue Marceau · 93558 Montreuil cedex · Phone: +33 1 49882600 · Fax: +33 1 49882609 · info@lechler.frGermany: Lechler GmbH · PO Box 13 23 · 72544 Metzingen · Phone: +49 7123 962-0 · Fax: (49) 7123 962-444 · info@lechler.deGreat Britain: Lechler Ltd. · 1 Fell Street, Newhall · Sheffield, S9 2TP · Phone: +44 114 2492020 · Fax: +44 114 2493600 · info@lechler.comIndia: Lechler (India) Pvt. Ltd. · Plot B-2 · Main Road · Wagle Industrial Estate · Thane (W) - 400604 · Phone: +91 22 40634444 · Fax: +91 22 40634497 · lechler@lechlerindia.comItaly: Lechler Spray Technology S.r.l. · Via Don Dossetti, 2 · 20080 Carpiano (Mi) · Phone: +39 02 98859027 · Fax: +39 02 9815647 · info@lechleritalia.comSweden: Lechler AB · Kungsängsvägen 31 B · 753 23 Uppsala · Phone: +46 54 137030 · Fax: +46 54 137031 · info@lechler.seSpain: Lechler S.A. · Avda. Pirineos 7 · Oficina B7, Edificio Inbisa I · 28700 San Sebastián de los Reyes, Madrid · Phone: +34 91 6586346 · Fax: +34 91 6586347 · info@lechler.es

L E C H L E R W O R L D - W I D E

Lechler, Inc. • Precision Nozzles • Nozzle Systems445 Kautz Road, St. Charles, IL 60174 • Phone (800) 777-2926 • Fax (630) 377-6657 • info@LechlerUSA.com • www.LechlerUSA.com