Atmospheric dust

• Publisher: Wiley (John Wiley & Sons)
• Year: 1922
• Weight: 716 KB
• Volume: 41
• Category: Article
• ISSN: 0368-4075
• DOI: 10.1002/jctb.5000412003

✦ Synopsis

REV1

matcrial, thc extent of clisintegrat,ion, and thc rato of rcvolution of tho mill. It is statcd that tlircc ls-litrc machines in series, rullnillg at 0000 r.p.in., can grind 1000 lcg. ground " raw phosphate," or 200 kg. ccllulosc in an hour to such n stnte of clivision that 85 per cent. of the particlcs is cstimntctl to bc of the ordcr of O*OOI n1111. diamcter. Exact figurcs of po\.c consuniption liavc not been obtained. It i j undcrstood tlint with thc oldcr typc of 15-litr appnratus for tnr oil tlic power conannption was of thc ordcr of 1 11.-p. per. 33 kg. of niatcrial tlisintcgratcd, and with calciiiiii phosphatc of the orclcr of 1 11.-p. pci* 5 1cg. of niatcrial trcatcd. Thcse figures arc only w r y approsimatc and with thc new ninchincs, fitted with bamcs, ctc., and possibly run tit liighcr spec&, n much yrcntcr output pcr 11.-p. is clniiiicd.

For convciLicncc t hc iiitlust rial uscs clnimcd for t,he colloid mill hnvc bccn divided into four groups. Tlic following is n bricf outline, under thcsc hcndings, of tlic industrial uses claiincd :-[Oct. 31, 1092