Document rNXX2xMoyzX4pKmvJgp3vm07

FILE NAME: Pennsylvania (PA) DATE: 1938 Oct DOC#: PA006 DOCUMENT DESCRIPTION: PA Government Bulletin - Safe Practice Asbestos Manufacture '.-*-Li fifcit.r " "V V * . ,^T V-5r'.;^;V.r. - / ; .. i -as- f'- Vj...vtv ")Ai--";C~. -4-V ---\--~C*'-'*/*;> * '*.'*.">- -j.'--1" a?7. : I' *.*. ... .. . . ' .. o* ~. ^ ;' `-i - "" ^ *.iw- . . % * - r * Si .--- --_s,-.V .......i" - ' y j g'.&:i*-**,` SAFE PRACTICE IN ASBESTOS MANUFACTURE Deputy Secretary s, * #' S2?ARTK-2ilT of LABOR end INDUSTRY . 1 Frank IU Boal ;; Director /BUREAU of T70RKUEN*S COMPENSATION -"Wm* H Chesnut h S i . if ' 'T / 3 -=?F OCTOBER,^ 9 3 8 *r >vV-V 'i;c t V - " SAFE 'PRACTICE CONFERENCES^, Hu, r3he^oant.?Bpoxisor^hip^oi^|^era^^f./::,^aI^j)ractace^lwcoiirerences;^4^-.' by the Pennc^yajaia'^tate^olle^ejyand^he^Department:c&^ebair'sandIndustr y ^ : has met%ith^avorable'xespoas"eHindustry. -4: > v ' ;T!hese*one day con feren ces'W e planned ^orysai'ety^en gin eers :-of Pennsylvania in d u str ie s and deal .with p r a c tic a l ways to elim in ate =occupa- tional disease `.hazards. - a ". '> '*;' -3t.;..v Seyj'j&sR.'.: Every scheduled speaker :4s from industry. An occasional exception would he a speaker outside oi industry, hut one having a^background of > practical plant experience. .Members of the Department'are-not on the ~ '- speaking program. The method of approach for each conference is to cover hut one specific subject where a hazard has been known to exist. All industries in the State which are faoed with this hazard are invited to assemble at the college to hear experts in this field answer their direct questions concerning actual plant installations and procedure needed to combat the hazard, fc ji. This plan of selecting one outstanding Pennsylvania plant, that has defeated the hazard in question, end setting it up as a model of safe ty to those in the same industry and thus have a wide 11group-handling" of a problem, has won the confidence of industry. The Department wishes to thank the selected companies for their . willingness in unselfishly disclosing the details of their manufacturing processes to competitors assembled at these meetings. The Department has planned a release of illustrated safe practice bulletins, covering the subjects discussed, so as to coincide with these meetings. SAFE PRACTICE IN ASBESTOS MANUFACTURE Edited by: Robt. L, Houtz Advanced Chemist In the manufacturing stages necessary to produce asbestos Qg.vs- ^gYjL : yarn from, the mineral form of asbestos .various machines are used which produce asbestos dust. Probably the greatest dust zones in an asbestos fabricating plant are found in the card room, and are the result of the severe .-vir/'- processing of asbestos fiber by the carding machine, Inclosure of the cards, with just the right amount of forced II ventilation das been found to b^sthe answer to the problem of card-- l^room dust> by the United States Asbestos Company* of Manhoim, Penna. A technical, illustrated paper on tho safe removal of asbestos Sj^dust,, not only in the card-room but in other parts of on asbestos factory, will, be presented by Mre B* W* Luttenbergor, the factory '^manager of this company*.' " jP%|jP ' The m a t e r i a l in-M r L u tte n b e rg e r' s pap er; i&-vs a e x te n siv e ', t h a t g .' ii ^ i s %to be d iv id e d in to t w o 'p a r t s , th e : f i r s t h a l f ' o f w hich i s to - b e 1 A '. J j# , SSjBPi*$*! " ` -<^8fe86 raaontocL at; this., conference* had' the-secoridhalf'lit$'the Fall of. 19397 M Xj&M S `"'l- f ' ." *Sjj3** " *,..*? .j ^ , 'The`following > Illustrated talk 'was presented by B* W* Luttenberger at a monthly,.,safe practice conference sponsored jointly b y TPenna# State College and the .State Department of .Xabor-nnd. Industry-* .This conference was Jiold nittany PAohj3 nn 5^ o in t chairmanship of 'sCompensation* 4 :-u "SAFE PRACTICE TN .ASBESTOS "`MANUFACTUREt,- ..-- - - - B* W,. Luttenberger Factory Manager U* S* ASBESTOS COMPANY - - Manheimj Penna. ' ' -- ... . i i\ `Dust in the asbestos industry is nothing new*- For Jiany years there was little or no control I have been in the asbestos business for eighteen years* When I came to this company, the only thing we had was a hood to move some of the air out of the department In the intervening years we have boen continuously striving to improve dust control We had so-called ventilating experts design ana install equipment in our plant to remove asbestos dust and many times, a week after the system was in operation, we might ns well have thrown it out the back door That has boon our oxporionco throughout the yonrs in trying to control asbestos dust* We-felt.the-only.way to get the thing done was ! to do it ourselves* We did a lot of work putting in experimental hoods* I took a trip to England to study the dust control system there, and .found them superior to anything wo had hero. To demonstrate the recent improvements in our plant, I would like to show you tho pictures of dust control systems we have installed* Records of tho reduction.in ----:--r.-T-; ~-- < - i. 2 - 3ii'-., v ' ' til*;i; .. .4.-'- ^ dust counts will jtell you clearly of,`the effectiveness -of *our exhaust ' .V"-*'*-'* ; :: ':-Y*>s:r-'-~'t'.** - '* '----- ' --" " division of "ItheDepartment ofLabor and Industry-;-Staamderstond the - .. i-r --V - -v^;- ^ : - . standard technique x>f collecting and -counting"was employed-and -that alcohol was the fluid medium in which tlie dust was trapped. - HiTT' ~ 1 '*> A listrof these recent tests with the locations taken, follows 1- I: PLANT OPERATION MILLIONS PARTICLES ASBESTOS LUST PER CU. PI, OF AIR Crushing Uachines ( Area about 3 machines 1 j- [ Cf.rdinr rnr.hinRK t ii. 5.4 * * i _ _ 1 Cf-rdimr; machines 4.],________________ Soinninp; llachinc 2i7 ifiniiMiitiiurnn tri--- Coa `.finding Cod '.Vinding Textile '.leaving chine Foster "'Tinders iTfisters roe '..'caving 1*9 1.8 2.5 ' 6.3 o2 ... Pig* 1 i i ; "This is a rear view of a Breaker Carding Machine. The Dust I liood over the Doffer end of the' Carding Machine may be raised since the section directly over the Doffer is hinged to the Hood proper at a point just beyond the Fancy. This arrangement is convenient for periodical cleaning or adjusting cf the Card. However, cleaning of "the Card Rolls is not done irithin the Carding Machine, but the Card Rolls are removed and taken to an enclosed Cleaning Machine illustrated by Fig. 5 The Hood is constructed with three ply wood, stained and polished, and extends ever the entire top of the Carding Machine from the Feed Rolls to a point beyond the Doffer Comb. SHej C, -.3 - P& ? '^beem~o ^7-:&:>-r'^entilat'icm^e^pE'i;unti3.;?3(&e1^^t7:>is removecL^^ 'the'work- room atmosphere is cleared*.,,..'.; .... ,-. '. '.'A- - . WiP, A f'z ~>^W6iwey - ." ' ...... -,4V5-< * ' . * -Ttzhas been a program 01 trial until the right'Tiethod is found.. -aKs-.kij" ' r-i-i V`? i , ....... if'l*I'I IWl J M I'T^tnUlml >mi jjfc&T We willingly`^cooperate with the =JState Department of -Labor, sand .Industry $ '~- - . . , - ---- K?r - " ~ - . v in-releasing .this material for other interested companies,or persons, < who might find our solving of the U* S. Asbestos Companies problems k . . . of help to them in this broad safe practice.field . f i- Fig. Z This picture shows a Finisher1 Carding Machine in the identical position as the Breaker Card in Fig. No* 1 with the exception that the Kood Cover-is lowered into normal location which is experienced in factoryproduction. The success of this installation is due in large measure to the delicate balance cf air removal created by reducing the high velocity of the inlet line to an amount that will be sufficient to remove asbestos dust from the Carding Operation but still not strong enough to pick up the largo asbestos fibers from the Card. The Photograph shows the highly-polished Card Kood entirely free from asbestos dust> Y/hat was formerly the most dusty room in an asbestos factory is now the cleanest. . * - Fig. 4 > General View of Exhaust System over Carding Machines * I i i Fig. 3 ' An enclosed Cleaning Brush to clean Card Soils. The i i Cover is shown in an open position but during cleaning operation the I cover is enclosed and under forced ventilation. The ventilation line inlet to this Cleaning Machine tests 3600 FPM. Fig- -G Back View of Breaker Cards with Hoods closed. Fig. :7 Front end of Finisher Cards. General View of Ventilation System ry Fig. 11 The Spinning Frame which puts twist into the asbestos roving and converts it into yarn. The ventilation is situated within the base of the machine at the bottom com partment, (See fig. 15 with base opened) Tig. 12 View of Foster Winder showing exhaust funnels in which cops ore set, This is re-winding operation whereby the osuescoc yarn passes upward from the ceps in funnel to tho larger package up on the machine The air is exhausted downward rhrovgh the funnel, thereby recusing the asbestos dust created free: tiic r.hiiiing notion of the lower spindle situated within the funnel Velocity of main duet 5300 PPM. PLRN OF EXH R U ST FOR FO STER WINDER U S. R S 5E S T 0S COMPANY M a n h e im , Pa. 3cmtat'-r * P i g . i &. This diagram accompanies the photograph in Pig. 12 to ill the ventilation system of a Fost^-r v n - n * ~ - Another Preparing Room Operation, showing "the Hood and Exaust ever the Shaker Soreen; This photograph accompanies Pig. 11 and represents the base of the Spinning Frame, with front boards removed to show the ventilation system within. Pig. 16. Water Spray over Cloth loom. k'ater is applied in varying amounts from 2 to 30% of finished weight of asbestos cloth. This water is added solely to keep down the asbestos dust. The spray device acts in a traverse system across the cloth. No cvlnot -io n.Qo/i nyi +.>oq o monliirtoo Y/ater Pans. Pig.17. Tape Weaving loom. Yarns oome down over the circular disc and are led' through a pan of water. This operation keeps down the asbestos dust.