Document a4mVwL9zR9w2aa23N0Vv6jkKR

FILE NAME: Trade Publications (TR) DATE: 1939 Sept DOC#: TR042 DOCUMENT DESCRIPTION: Trade Journal Article - Why They Installed - DustCollecting Equipment CEMENT MIL Charter Member C E M E N T M ILL SE C T IO N of Associated Business Papers C o n c r e t e , w ith w hich h a s been com bined Cem ent A ge, New Y ork, and Concrete E ngin eerin g, C levelan d, is devoted to the P ro p e r U se o f C oncrete and the M an u factu re o f Cem ent. V olu m e 47 sy tij Established 1904 Sep tem b er, 1939 Num ber 9 Published Monthly by Concrete Publish in g Corporation 400 West M adison Street Chicago, Illinois Telephone CENtral 8822 Norman M. S tinem an, E ditor J . C. Wit t, C on sultin g E ditor A. C. B aMBERCER, A ssistant E ditor w Louis Brookman, Jr., Business Manager L. Moeller, Circulation Manager Harold 0 . Hayes, Promotion Manager Representatives New York City E. Macdonald Bacon 17 West 45th--Room 909 Longacre 3-5260 Detroit Parker &Tarbell 419 Curtis Bldg., 2842 W. Grand Blvd. Madison 1540 San Francisco: Don Harway Room 1009, 155 Montgomery St. Exbrook 6029 Los Angeles: Don Harway &Co. 318 West Ninth Street Tucker 9706 The Cement Mill Edition of C o n c re te t The Cement Mill Edition of Concrete is edited exclusively for those interested in the manufacture of portland cement and related products. Its pages are devoted to discussions of plant design, management, operation, production, effi ciency, chemical research and control, quarry op eration, progress and news of the industry. The Cement Mill Edition also contains all the material published in the corresponding Regular Edition and ?o provides news of the uses and merchandising of the materials whose manufacture is discussed in the Mill Edition. The Regular Section furnishes mill operating officials and mill executives valuable points of con tact with the users of the materials they produce. The subscription price is $4.00 a year in the United States and its possessions, and Mexico. One Dollar additional for postage in all other countries. Current copies, 50 cents each. CO N TEN TS Control of Burning Becomes a Science............................. ............ 222 Canada's Exshaw Plant Celebrates Five Years of Safety............ 224 Accident-Prevention Work Has a Definite Value--By Tohn J. P o rte r.................... ......................................... .................... 225 June No-Accident Campaign Hangs Up New Record ................ 227 Cement Shipments and Production Well Ahead of Last Year...... 227 Pulverizing Efficiency of Ball M ills................................ ............... 228 Sorel Cement No Relation to Portland............................................. 229 Co-Operation of Management Needed in Safety Activities........ 229 Why They Installed Dust-CoUectiaq Equipment........................... 230 Chile Is Self-Sustaining in Production of Portland Cement ......... 230 Editorial Discussion .......... - .......................................................23i Accidents May Occur Anywhere Cements Affected Differently by Excess Water Comparing Large and Small Rotary Kilns Special Cements of Portland Types Produced in 1938 ................. 232 Death Takes President Johnson, of Aetna Portland...................... 232 Cement and Quarry Section Program at Coming Safety Congress 233 Production and Shipments of Masonry. Natural and Pozzotan Cements ........................................................................................ 233 Adam L. Beck, President of Great Lakes. Passes Away .............. 234 Universal Atlas Opens New Muskegon Distributing Plant.......... 234 Mill Equipment .. ............................................ ...................... ......... 235 Men and Mills . ......... ............................ ......................... 236 Charter Member CONCRETE is indexed in INDUSTRIAL ARTS INDEX. *vmch may ba consulted in any Technical or Public Library mm m / Audit Bureau of Circulation? j Copyright. 1939. oy Concrete Publishing Corp. C O N C R E T E -- Cement Mill Section -- September, 1939 Page 221 EMENT MILL Why They Installed Dust-Collecting Equipment f ;for The W. W. Sly Manufacturing Co., a Cleveland equipment manufac- turer, recently mailed an iden tical letter to a F - numbei of man agers of well- known industrial ^k concerns, includ ing a broad rep resentation of su r ;f,-'m:fe?./ perintendents of cement manufac turing plants, ask ing them why they in stalled dust collectors. F. A. EBELING W hile many good reasons were given, it is noteworthy that hack of all of them, in general, was the desire of the management to provide healthful work ing conditions. This sentiment is ex pressed in the following excerpts from tvpical replies: " Our installations have been made from the standpoint of improving safety and health conditions in our plants. Any information which I may give you will he more or less general, therefore with out much data on the economic angle/' "The dust nuisance was the first con sideration in making these dust-collecting installations, and we are very well satis fied with the result. It would be very difficult to estimate the economic returns of the installations. These returns are in tangible. although we do feel that they are there." " Our decision to install dust collectors at our various plants was brought about more by the desire to clean up the plants and improve conditions in general, and 1 might sav that whererer we hare made installations we have accomplished all that we set out to do. All our plant super intendents are very well satisfied with the results attained. As you know, we are again installing a number of collectors this winter, which should be v e r v good evidence that we thoroughh believe in them. General cleanliness around the plant and good will from the employees are. of course, an economic advantage: hut it is hard to measure in dollars and Dust-filter installation used to exhaust a belt conveyor in a modern ized cement plant in Canada. Observe the piping system through which the dust is drawn off cents. Only in one case were we re- i quested bv the authorities to install a J collector. All the other installations are being made on our own initiative." Cement Industry Among Leaders " We have recognized the value of dust 1 control from the standpoint of house-! keeping and better relations with thei workers employed in these departments. We have found that, when the workers'^ recognize the desire of the management! to provide them with clean, healthy work-1 ing areas, they immediately show a | greater interest in their work, and in! maintaining the premises clean and the| equipment in working order. ' Prominent among industries usings dust control, Mr. Ebeling lists those pro/g ducing asbestos, baking powder, buttons,!! caibon. castings, cement, clav, coal, cork,! fertilizer, gvpsum. lampblack, mica, ore,'] oxides, paint, snuff, soap powder, talcum'J powder, tobacco. All signs indicate a! constantly growing interest in this impor-i lant subject of lifting dust out of indus-S try. The cement industry has made not-sl able progress in this direction. Chile is Seli-Sustaining in Production of Portland Cement CHILEAN production of portland ce ment, a virtual monopoly of the Cia. Fabrica de Cemento " El Melon," Calera. amounted to 363,987 metric tons in 1938, an increase of 50,877 tons as compared with output in the preceding year. Imports dropped during the period from 1,828 tons in 1937 to 1,676 tons. The imports consist almost entirely of white cement, says a report to the U. S. Bureau of Foreign and Domestic Com merce from the office of the American Commercial attache at Santiago, Chile. Rapidity of the progress made by that country in its successful efforts to become self-sustaining in meeting its require ments for portland cement is indicated from statistics in the report. In 1929, Chile produced 145.234 metric tons of cement and imported 241,961 tons. In 1938, the domestic production amounted ^ to 363,987 metric tons, while imports j were close to the zero mark, at 1,676 j tons. In each of these years Chile ex- : ported a negligible quantity of cement The growth of the Chilean cement in- -j| dustry has brought about a correspond ing increase in the number of workers employed, 1,557 workers being employed in 1938 as against 1,398 in 1937 and I.L20 in the two preceding years. In creased production in 1939 is expected to accommodate the demand arising for cement in the reconstruction of homes and buildings destroyed by the earth quake early this year. There is little doubt that the local industry will be able to handle the situation. Page 230 September, 1933 -- C O N C R E T E -- Cement Mill S e c tio n Acc Occ can i ing < in pi T1 sis c lishe D anyv men of a any begr soon othe A are quai tion1 reco U perr that worl men guai Cet Dii Ext lane of w ture of c IV cone a cc nica Seri larg tvpe ' It Ju n < don enc< cem larg C silic the ox it CO 32 CONCRETE September. 1939 HARSHAW CEMENT COLORS Chromium Green Oxide, Red Iron Oxide, Yellow Iron Oxide, Ultramarine Blue and other colors THE HARSHAW CHEMICAL CO. Cleveland/ Ohio and Principal Cities Advertisers' Index Anchor Concrete Mchy. Co.............................................. 2 Anchor Dtv of Consolidated Concrete Mchy. Corp.................. 24 PROFESSIONAL SERVICE Besser Manufacturing Co..................................................................24 Black & Decker Mfg. Co......................... ....................... 2 Blystone Mfg Co..................................................... 17 E. L. CONWELL Or CO. Established 1894 ENGINEERS - CHEMISTS - INSPECTORS Cement, Chemical and Physical Laboratories Tests of Cement, Concrete. Sand, Steel. Cement Slock/ Cement Brick Books................................... ................... Inside Back Cover Calbar Paint & Varnish Co........ ..................................... 22 1 Chain Belt Co........................................... .................. ......... I C H. & E. Mfg. Co., Inc...................................- ........................22 Chemical Analyses of AH Commercial Products Compete Technical Supervision of Central Mixed Concrete Plants 2024 ARCH STREET PHILADELPHIA. PA. I Classified Liners ...............................................................................31 J Commercial Shearing & Stamping Co.......................................... 21 [ Concrete Equipment Co.................................................................. 18 i Consolidated Concrete Machinery Corp . .............................. 24 CONCRETE SPECIALTIES-- How to M ake and Sell Them J Comvell Co., E. L ......................... . . . Dougla.s Fir Plyuood Assn. . . . .....................32 .............................. A 4-page booklet, entitled "H ow to M ake and Sell Concrete SpecU ltiee." w&i published by the Concrete Publish ing Com pany in 1928. and wee distributed quite extensively through out the concrete product* industry. Individual ch apters cover the following su b je c ts: (1 ) A nalyz ing the m arket for concrete specialties; <2) concrete buna) vau lts: <3> concrete septic tan k s; <4 con crete fence p o sts; O ) concrete sills an d lin tels; |6 ) con crete silo s t a v e ; <71 c o n crete roofing tile; and <$) concrete floor tile. A limited number of copies of the booklet, ju st m ade available, can again be offered to readers of "C on crete" while the supply la sts, a t the reduced price of 50 cents a cop y , which is half the publisher's price of $1.00. Foote Foundr> C o , J. B ........................ ... ....... 22 I Hausen Co., ,L ................ ...................31 I Harshaw Chemical Co...................................................... ... 32 j Ideal Div. of Consolidated Concrete Machinery Corp................24 I Jaeger Machine Company . . . . i j Kirk & Blum Mfg, Co.................... ..................................... 19 ....................... 22 O rd er* th ou ld be addressed to Book Department of CONCRETE 4 0 0 West Madison St. C hicago, Illinois ; Koehrmg Co. ... ; Living-Stone Co....... j L & M Mfg. Compam ! Lone Star Cement Corp.. . . ... ..... 18 ................................... 31 ..............................31 ............................... 11 BASIC PRINCIPLES of Concrete Making By FRANKLIN R. McMILLAN Director of Research, Portland Cem ent A ssociation T H E author has culled the essentials out of a mass of scientific data on this subject and presents them with force and directness in this book. He shows the effects of quality of material, of proportioning, mixing, working and curing on the finished concrete. The importance of variable mixes; tests for permeabil ity; how to obtain strength, durability and watertight ness ; effective ratios; importance of proper construction methods--these and many other vital topics are dis cussed fully and authoritatively. The book represents not only extensive accumulated knowledge, but also wide practical experience in the field and laboratory. It is an enlargement and revision of a series of notable articles on concrete mixing by Mr. McMillan published in 1929. Ninety-nine pages, 6x9$4, 32 illustrations and tables. ! Mall Tool Co ........................................ .......................19 ( Marquette Cement Mfg Co........................ ........................... j Mepham Corp.. Geo. S .............. ............................ ............ 23 Miles Mfg. Co............................ ...................... 2 Multiplex Concrete Mchy Co. .................................21 National Chemical & Mtg. Co......................................................... 21 National Industrial Advertisers' Association...............Back Cover Neptune Mfg. C o ............................................................................... 22 New Holland Machine Co ............. ................................ 23 Noble, Thos. W ............. . . . . - ................................ 21 Olsen, Eugene F .............. ............... ............................... 13 Pennsylvania-Dixie Cement Corp................................................... 15 Portland Cement A ssn .................................................................. . 19 Professional Service ....................................................................... 32 Ryersou, Jos. T ,, & S o n ................................................................... 23 Safety Vault C o r p ................................ Sargent, Lester L .. Sasgen Derrick Co .. Smith Co., T L Specialties Stearns Mfg Co. * .............................. 20 ...........................31 . ...................... 23 . ......... 10 ...........................31 ..............................13 Price $2.00 Postpaid CONCRETE PUBLISHING COMPANY Book Department 400 West Madison Street Chicago, Illinois Tamms Silica Co . ................... 23 Union Steel Products C o ................................................................. 23 Cimersal Div of Consolidated Concrete Mchy. Corp............... 24 ! Williams. C K.. Co. . Wodack Electric Tool Corp...................... . . . .. Zi ......................... 22