Sixty-ninth annual report on alkali etc. works, 1932

• Publisher: Wiley (John Wiley & Sons)
• Year: 1933
• Weight: 261 KB
• Volume: 52
• Category: Article
• ISSN: 0368-4075
• DOI: 10.1002/jctb.5000523505

✦ Synopsis

CHEhIlSTRY AND INDUSTRY 709 stiitions opcrnting with pulvcrizcd fuel firiiig. 'rile progress inndc is cniplinsizcd by tlic rcccnt report of tlic coniiiiittcc appointctl by tlic I~lcctricity Coiiunissioncrs to study tlic qucstion of ' I Tlic ISniission of Soot, Ash, Grit, nnd Gritty l'articlcs from tlic Cliiniiicys of Elcctric Powcr Stations " (1T.X Sttitioncry Officc, 1032, 5s. nct). '1'11~ report fitiitcs " with p i i I \ w h d fucl fired installations soinc form of dust cxtrnction plnnt is ncccssnry nnd tlic iiiost siiitiiblc typc is tlic clcc rostiitic prcbipitiitor," superior tlicrcforc to writer-wiisliing t, or cyclon c 111 c th od 8.

T n poivcr stiitioii priicLice tlic renioviil of tlic dust from tlic conibustion giises is it fqniiidriblc uncRrtiiking 1)ecitItsc of tlio Ii~igc volii~iies in.ol\wl, itvcriiging ~oo,ooo-cioo,ooo CI). rt. of gilscs sity ~5-3000 F.

(135--150° C.) pcr ton ofcoiil biirnt. ~U S O in the ciisc of piilvcrizcd fiicl firiiig 500/,-70% of tlic nsli of tlic coitl iility I)e in tlic forill of dust in the giiscs, :111tl often ?5$:, of tlic dust piirticlcs iirc less tliitn 10 iiiicrons iii sizc rtntl therefore very difliciilt. to rewiovc. l'hr hiisic principle of using i i i i clcctrost:it.ic field by iiioiiiis of discliiirgc clcctrdcs, opcrnting with liigli tciisioii direct ciirrciit at 60,000-70,000 volts, so iis 1.0 clcct,rify, itnd tlicrcforc rcpcl, tlic prirticlcs to i:ollc!ct.or clcct,rotlcs, lins it niinibcr of iidviuitiigcs. 'l'licsc iricliitlc dry scpiiriitioii, prnctically vqiiiil ficprimtion cfliciciicy irres1)cct.i~~ of 1 . 1 1 ~ sizc of th! i)iirt,iclcs. no incchuniciil obst,ruction to thc i)iiss:iCe of