Air han­dling

DEMM Engineering & Manufacturing - - CONTENTS -

Dust and fume ex­trac­tion equip­ment firm Eg­mont Air has cre­ated a new so­lu­tion to re­move dust, smoke, and fumes from the work­place.

As the fo­cus on health & safety, and clean-air-dis­charge in­creases, new ex­trac­tion meth­ods are re­quired that pro­duce bet­ter re­sults in main­tain­ing a clean and healthy workshop – as well as an en­vi­ron­men­tal re­spon­si­bil­ity to keep New Zealand sus­tain­able and clean for fu­ture gen­er­a­tions.

Plasma, weld­ing, spray-paint­ing, chem­i­cal and sim­i­lar pro­cesses gen­er­ate a high vol­ume of con­tam­i­nates that can quickly spread through a work­ing en­vi­ron­ment.

Eg­mont Air’s ex­trac­tion sys­tems quickly cap­ture and pro­vide a high level of fil­tra­tion ef­fi­ciency so that toxic par­ti­cles are con­tained and elim­i­nated from the en­vi­ron­ment.

Car­tridge fil­tra­tion is the lead­ing tech­no­log­i­cal an­swer to many tricky dust and smoke ap­pli­ca­tions be­cause the abil­ity to achieve high-ef­fi­ciency fil­tra­tion on mi­cron par­ti­cles such as smoke, yet process a gen­er­ous dust­load­ing of con­tam­i­nants out­plays all other types of fil­tra­tion meth­ods.

Car­tridge fil­tra­tion is the lead­ing tech­nol­ogy in the dust & fume ex­trac­tion in­dus­try and of­fers many ad­van­tages and ben­e­fits over tra­di­tional fil­ter-bag sys­tems, such as: High ef­fi­ciency fil­tra­tion, (even on mi­cron par­ti­cles such as fume and smoke) Au­to­matic re­verse-pulse clean­ing by com­pressed air to main­tain car­tridges in op­ti­mum con­di­tion and re­duce main­te­nance to a min­i­mum. Fan on clean-side of fil­ter, out of abra­sive wear Down-f low air pat­tern through fil­ter, for proper de­canta­tion of dust par­ti­cles into drum. Staff at Eg­mont Air be­lieve there is no sub­sti­tute for a high fil­ter-sur­face-area ra­tio and au­to­mated fil­ter clean­ing, and this is ex­actly what the firm’s ex­trac­tion sys­tems in­clude.

Other de­sign fea­tures are in­clud­ing de­pend­ing on each in­di­vid­ual ap­pli­ca­tion and th­ese may be; spark traps, spe­cial­ist me­dia such as f lame-re­tar­dant or anti-static, de­canta­tion cham­bers for high dust-load­ing, acous­tic si­lencers and ver­ti­cal dis­charge cowls.

The firm says it will guar­an­tee with doc­u­men­ta­tion that th­ese sys­tems have high fil­ter­ing-ef­fi­cien­cies and will not dis­charge dust par­ti­cles that would oth­er­wise cause harm or nui­sance to the en­vi­ron­ment and neigh­bours.

Smoke and fumes

Smoke and fume ex­trac­tion from in­dus­trial pro­cesses such as weld­ing smoke, plasma fume, foundry, ex­trud­ers, chem­i­cal, odour con­trol, ma­chin­ing oil mist, etc can be ex­tracted be­fore it reaches the op­er­a­tor’s breath­ing zone – or spreads through­out the workshop en­vi­ron­ment.

High-ef­fi­ciency fil­tra­tion and large fil­ter sur­face is im­por­tant to cap­ture mi­cron par­ti­cles with­out clog­ging or bind­ing of fil­ter me­dia. Eg­mont Air fol­lows a 17 step process to cor­rectly eval­u­ate your spe­cific ap­pli­ca­tion be­fore rec­om­mend­ing any ex­trac­tion sys­tem.

Car­tridge dust col­lec­tors, ex­trac­tion hoods, ar­tic­u­lat­ing arms, fume cup­boards, air clean­ers, ro­bot fume ex­trac­tion hoods and mo­bile fume ex­trac­tors can be utilised in the de­sign of the ex­trac­tion sys­tem.

Mix­ing, pour­ing and con­vey­ing pro­cesses of­ten gen­er­ate air­borne dust. Th­ese fugi­tive dusts can usu­ally be cap­tured by strate­gi­cally placed hoods, down-draught suc­tion benches, ar­tic­u­lat­ing arms or a cen­tral ex­trac­tion sys­tem.

A full anal­y­sis of the dust or pow­der be­ing ex­tracted is al­ways im­por­tant to al­low for any spe­cial de­sign fea­tures that may be re­quired for ex­plo­sive dusts, cor­ro­sion, hy­dro­scopic prop­er­ties or stat­i­cally charged par­ti­cles.

In th­ese sit­u­a­tions Atex cer­ti­fi­ca­tion, ex­plo­sion relief pan­els, spe­cial fil­ter­me­dia op­tions or spark de­tec­tion and sup­pres­sion, will be in­cor­po­rated into the ex­trac­tion sys­tem de­sign.

Paint and pow­der coat­ing

A full range of spray paint­ing booths, en­clo­sures and ex­trac­tion sys­tems are avail­able to suit most in­dus­trial man­u­fac­tur­ing type ap­pli­ca­tions. Par­tic­u­larly where a high vol­ume of paint or lac­quer is be­ing ap­plied, han­dling of items re­quires me­chan­i­cal fork­lifts or gantry, or per­haps large batch and pro­duc­tion f low move­ment of items is re­quired.

In th­ese in­stances Eg­mont Air has sys­tems that fea­ture high fil­ter-sur­face area to cap­ture the sticky over­spray and also gen­er­ous ven­ti­la­tion to re­move haz­ardous fumes.

Small spray paint sta­tions are also avail­able for small items in school or test-sam­ple sit­u­a­tions. Wet scrub­bers, paint-mix rooms, dry­ing rooms, bakeovens, pow­der-coat­ing booths are also avail­able. Of course all sys­tems are cer­ti­fied to AS/NZS 4114.1 spray-booth stan­dards.

Con­tact Eg­mont Air, Ph 0800 781 200. Email sales@egmon­tair.co.nz

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