Document NGaOZR3Ln8ejZqQBnY5VGNKyy

-^KKUi*mar*MAHlfiCf BA880WV. MOALCO '9? NOVWfeCftfS? ,44 ^v^/*** 11JL'*_uJ Ift MAI tU< t*' HKV$V. 3ALCO HQ )!6l Of 1987 Ait (?JQ) 2eee*ber, 184*. J ti-* ' iAi) {tfr - +* immssm 4 1 visited 1aspire Gorge on 50th Noreader with fr* 4lr. Bfoadhurst and Ur. Bancoc* and act the Kaneger, ti\tfblL W' *T* ********* *d th* Engineer, Mr. Witttngnam. I f-P J ' .JRvi*5*'*ai ah engineer from Coast Mine, Mr. Stubbs, ~ visits the plant at yempire Gorge about once per week to give engineering direction and advice* ^ Ur. Kenned? offered to shoe us over the plant '< ; and ala* end we had quite a thorough look. The bill which the? are mining appears to have three mala fibre bands within a total height of, say, 10 feet *nd the total length of fibre in the a bands v * 'M h is about 5i to 6H, thus offering a possible yield % of approximately 4^ to 5jt. The top seen has the best ;.** ;< grade nth a fibre length of about 1}, the other tw v>.J, .!'C. bands consisting of a cumber of smaller nidih veins each. ^ St present there ia a drive approximately &'-0 - '' wide into the hill for a distance of about 12G feet and the roof of the drive is just halo* the top seam. At "2-e> r*nce, the floor is lust below tn bottom band, floor rises quite shaply so th*t for neat of . ianoe the flour of the drive is above the lowest * d. The idea is that shortly they will retrace o x> fIts?! r IH s? Jj S 111 Ijl |el Iff Jteps and take out tha loner band but lli still leave the top bend, as if this la taScen, the roof may be Insecure. Once out of the sain workings, the idea is to sine the total height to obtain the three re bands as It will not setter then if cave-ina ocour. I think they "ill experience a lot of roof trouDiS when they attempt to take the top band. At present they are blowing the barren rock first, leaving the ore on the floor (the middle band) and then the ore body Is blown out. . .... -:. mm .*1 WV-03877 < PR00LCH3 iNMATTER OF "V BARROW v. MIOAI.CO NO i 148 OF J9S7 ^SV.HjDMAATLfcRgr^f > <. -o C C VI O t& Cl <dx ;? O (5 z ' G Barren rock is trucked to the side of the cliff and tipped over. Ore is trucked across a bridge and tipped onto the ground in front of a 12* wide Jaw crusher and shovelled into the crusher-by band. A flow sheet of the sill is attached hut it is as follows i- Froa the jew crusher a belt conveyer elevates the ore to a Jaques gyratory crusher (about site 4), then another belt elevates to a.Rotex screen. The overs froa the screen ere Ho. 1 grade ore sized with rock and these are discharged into, and stored in, a stall hopper below the hotex end are later treated separately through the plant. The through* from the Ro&ex go through a pair of rolls similar to those we have installed and ere then elevated by belt conveyor to a second Botox, Ihe overs froo this Rotes are called 2nd grade fibre and rock and are stored in a hopper for subsequent treatment. The ^ ^ caz 3 ^e&-w'torou6oa g0o to a snail pair of rolls and are elevwaatetedd/t^Sn \ a belt elevator with slots attached, to a vibrating''v &******?'*'' ?/<***) screen. _ Dust and fine grit is eliminated here, hJU**4 reaelnder going on to a lerge Kubit Mill* /*vW"5mUj{. From the Kubit, the material is elevated to a w vibrating screen r.here dust and tailings kre eliminated and the fibre is eucked off the screen //the standard type air hood and takes to a cyclone Collector above. '\lLb+b+J- 4^*^*** This cyclone discharges on to a further vibrating screen 'XaAU. W tp>" .gain screens out dust and a&kln the fibre is sucked off into a separator overhead. This separator discharges into 8 hexagonal enclosed trommel with three ^nes=- take-offs, *first a dust take off? second, inferior fibre ^ e*fc*a* sized with grit and thirdly, Ho. 3 grade fibre of good rtiT t**4" -c&U . *-* / clean quality--- ill tailings are dumped in the valley ---------front of the mill. (Jr. Dt!**<*++. ihrer the hoppera with Ho. 1 and Ho. 2 fibre are full, the ore feed to the aiil ia stopped end then K. i .( C c ( () l$i - yv-j \ ffiOQUCEO (NMAtTCltOP TfcWNtHOOWttVC.MPBlA?tCO -5- roo^stmMArrtntf n?Vs V. miqauso.... NO 1161 OF 1967 4nd So. 2 grades are treated separately. The Mo. 1 dischargee on to the bait after the first rolls end then gees through the remainder of the plant. The A *o. 2 fibre discharges on to the elevator lending to '^the Sub it Kill end goes through the rest of the plant. The capacity of the plant is very nuoh below that *cf otlr alii partly because of the snail jaw crusher and also because 1st, Sad and 3rd grades oust be treated separately. The plant is strong in cleaning equipment, however, and very clean fibre should be obtained. .......The "plant,. was running quite SBoothly^at the ' ties of -- ay visit although froa reports* they have had i lot of * trouble, lho Botcx screens give no trouble but I understand these are Saported, sot Australian screens. Hr. Kennedy said the reason why he was running tbs Bill was because he had had a telegran asking hiss to endeavour by all possible means to run and obtain 5 tons of each grade. Ha said this was not possible with the limited ore at his disposal, as to produce S tons first grade he would have to sake 60 tons third grade with his present ore. He had lust about obtained his & tons ho. Z grade which was all he intended to get but had just v received a further wire instructing him io continue operating at uaxlaus production. He cannot continue because the only ore ha has , chains frosi the Bine if from one 8 ft. face. In additioc the alii is not in a condition to run. tfuch of it is unroofed and this is serious as the place abounds with pits which will flood with rain. The power house roof is not completed and tt would act be possible tv, opwratw the power house in heavy rein. Ihe power house contains one large engine and dynast and a stand-by oil engine end dynamo. A Brooawade i i in .fir dgcgsgs.sog la._jaatu?elng put-inland-at present a a -*. -Sft '.Nsr' . V> -s*. rji,. >/ 1 r.. portable air compressor of about IBO cubic feet capacity i# tbs 00X7scare* of elr. A second portable coapressor Is ai* 1a the yard. VI th *U three oo- pr_ 90 ten* TVier are no houses or barrack* yet iuad all sea are lin&g under canvas but Quite good aaess complete with pooling rooo is ^ust beiag coaploted and about four two-men hut3 are last (ini.shed. C**p1U^ -A it pteae&t thirty men ere employed and whilst cleaning up the accumulated ore the mill has been <w'^ .working two shifts. X understand that 5/~ per day he* A-*. ' bean paid extra to the aan to compensate for dirty con IA. T ditions when the mill la worktag. . thle 1* % -very 'ted precedent, of course, and is deplored by Mr.. Kennedy but was granted by his predecease;- ThTsill is very dusty when operating but no aore so then olffi is at present. 1 belters Ur. Kennedy ts a mining engineer who in recent years has been associated mainly with the mining end processing of Tahtalite. Se is a eery decent type, about 55 years of age and mould be a fairly sound Manager. Produced in Asbesios ? -zrsonaI Injury Cases: At-rsr.;. copied to R'chart! f-\ Scrubs