Document ZnNweDRn9QpNNqgo8akg3oXBd

FILE NAME Colonial Sugar Refinery CSR DATE 1961 Dec 29 DOC CSR100 DOCUMENT DESCRIPTION Govt Inspection Results - Ventilation Wittenoom cee ee cee eened N. PLAINTIFF'S EXHIBIT PENGAD a e . : ee, . an District Inspector ) Kines Kincs Department 2 tt 4 TALGOCELTI _ er oe i ; * saan a Hittencooretr tre tre 29th December 1961 The average of sampltesakenis asfollows Te 240 ot. Main Adit py 240 P Day Shift Shift 4 yt 310 p.p.4.0 te =| - from drop from - ' TheseThese counts show an appreciable _ counts for October which wore as follows 4. your average ~ Afternoon Shift ~~ 750 p (3 m< iplae . isolated casce down of Apart from of dirt not beingpwoaitnetred the dust from this most failitedr ewas transfer bolt and to comprinin venturi before scraping operations commenced conditions generally in the mino were entisfactory . Owing to dunt samples being appreciably higher on the the the Hain Adit on experimental coke installed at the transfer helt in an. effort to capture being liberated Tho - filter consisted 16 Electric Fan with of 15 ducting attached the end of the ducting coke bed of a cylinder 18 in diameter " screen _ up fan to ffiilltteerr mtahdreougohf and The dust picked by the had to the vet coke fun was left going for veak - comples This & ani'at varioun comples were taken with the Konimater before the fai and at the discharge ^,ideof the ooke bed .. .: ws Tho avorage of amples token were as follows Before the Fen -" 330 p.p.c.c. Discharge of coke bed 140 p.p.c.c. These figures indicate that approximately 50 of the dust particles were being imprognated into the coke The cake tr^" brought to the surface at the end of a week and when examined it could be seen that a large amount of dust and fibro had bean - in the in to note collected It is interesting that although fibre was fibro phoned up in any present coke various lengths no work is taken with the samples Konimeter Officer Further experimental to be done by the Ventilation Officer with the view of installing ; filters at the Bolt Transfer and Ross Feeders in the fein Adit the Grizzleys on the haulage levels and at the- stope faces if the : Longwall nethod of mininigs to be adopted - fe ao . ~2-e . . cle on 5 . and on the on to all 22 to break into 32 bratticed over donto og f* ccam Nuch work has been separate the upper and lower workings for ventilation purposes All menunys and chutco 7 on the 1 leval have been work is progressing - antisfactorily the b^'en 2 3 end 5. lovele drives commenced from on the 2 lev^'l 3 leval 12 W level ensure on th lover warkinga ar^'connected * possible step : x PS anaplas above counta ^'r^'ind^>coto coming 5 6 and l^velsIt was cought alight tho . empos given off mines Apparently a not thene prove fatal the gaoos iTshemofsitre io , , posible undesireable undesireable ae i . 4 - below - wo an* + - ~ . . rand . iz . 620 p.p.c.c. Afternoon Sh6i 10 Qf oQt s _ Day ShirtShirt 330 p.p.c.c. around chute Much fibre was noticed in the samples in the Nordberg screens Control Boards and the . a particular fine tim ofer dust liberation this was Aa) : It will be noted that the last average of 330 /.c F it considerably lower than the other two partly due to t , the strong eastorly wind blowing on that particular day The source of was coming from the transfer belta . undernhath the screens In this area there was a large amount of spilleg^' . and a high percentage of the ducting was in need of a ropair . Conditions the crushing section were reasonably good : and work footn- in continuing in an endeavour to trap Tho which the dust exhaust is servicing No. 2 Adit ia inadequate and dust | samples were taken high with shifch there were very Fibre visible 1 WER eee ae wer eae be + ra dust ttailiangsitlhinegsslbiidnesand Buch dust instill dump being liberated from the tallings and with the wind in the right directionfinds itsway into the mine workingn via adita Work which has boen and will be done to help combat the misance which the surrounding help the mill - Total roller shuttere the th">ndoorway - 4d instelling of in the settle further dust water -. air 2. Total enclosureof the Tailings bin and . installed to . spriya at po 7 os 40 ts ; Attachod Attachod temperatures 5 ill be greatly improved duplreaisengfitnhditsobuvlaitisonittobulation of dust counts und temperatureas ---- ---- 7C oew arae OF JUNTS