hydraulic fill 1

7/29/2019 Hydraulic Fill 1

1/20

SBCSETV OF MININQ ENQIIYIqIERSt af A IMS3 4 G LAST 4 7 t H STREET, NEW VORK 17. N.V.I


2/20

I . . . . C.. .. . ,..: * ,?. - .i - _ .... a - . ..

Underground Starage ~ n d i~tribution f Hydsaultcmxi- _ - .- . .. \ ,\ . iat Mayfbeues Mim ;, ,z+ - .

, - % > . >? -:+-J:;" ,.,&I L2$ , c; I.*- $ -- ,(. -:


3/20

v.t,:>' m & g z 6 % ~a~m@r&*n%PALS, 4 "th; sa&e time, t n

s% d e d nd i n t ~ e g a t e dnto the stoping oper atio ns of the. m&a, @&&re r%B&"-7 ,n t ~ o d u c t i o n f hydraulic f i l l to stoping methods, the Gamma m i n i ~ gme%* . ' - >d " 1


4/20

, e --

dements are: (11%fw clone &I pu%np'Bbai:a$7,800 ft.- horizontal 2 inch pipe line connec t i~g

,.., , , s a g e tank a t the shaft collar, (31 the undergzsilo, metering, and slurrying equipment, (4) the 35.0 tan st:$eopera tor ' s control a t the bottom of the tank, (51 the yefec@.&tal distribution system below the tank which includes 1 , binch diameter bore hole and 500 to 1,700 ft. runspipe line on severa l production levels of the mine.

PUMP PLANT , - - . d ~ v, - -*--a:$-"3The Mayflower pump plant i s very s imilar to the Star r ~ a n t e s c r 3 ~ ;4 :? 2 --&*by Mr. Rice and others in their description of the Star Mine hyz&xa i i ; l ' i&~, ;-2.:>*- -'plant. Figure 2 shows a general sketch of t%e MayfLower pnmp.$~F@&- .- &*WbFIGURE 2 - Mayflower Mill Sand Plant , --=.?-&-* ,*--9ic *-- - g3.7-i t i s situated at the concentrator tailings discharge. $he pump se~&&&&-? e-a- - >

for the Mayflower Plant is a Gardaer-Denver 5x6 FXG-FG d u p G pbL~$!$pump, fitted with 3-LIZ inch diameter pistons and linela. l t i a , ?,r,,%.",ated a t a main shaft speed of 56 rpm. The sand s l n r r y desdii'b&3-&+$$@&- - - ,>-,TABLE 1 - Screen Analysis, Mayflower Mine Sand Plant * - --,:>Tr4Y- 7-=?Jii*s1 is being pumped into the mine a t 48 to 51% solids. Dry solid &n~&$&7, , t *,L?r N >approximately 3.0 grams pe r cubic centimeter. The f l t~ ldlaw ~ i b s t i ~1>- .-+i- ;- .;Apump to the mine is approximately 55 gallons pe r mtn&e and n_pet~ka'&*

' -?.7'-'"Tn '&pump discharge pressure of 500 psi. The capacrtp d a f - B ~ k ~ $ $%a;, . / I .- , YZ - itons of so" ' , .zk->;-- *7 + ec =$ = is;$. T w K _ ~ d ~ ~ & ~ ~ & z p & ~ b > . i -JLAGE TUNNEL P IP

AI dicated in our original Plant schematic, s lu r ry %&the mine thru 7,800 f t

.-t -4-+,, sf-+,.+ 3;


5/20


6/20

/ < 744_/her the mill *-nu. . m 21 haor conthus besia. fet.rm~$&fq.< .rg.pmilts d i e c k r r p 6-f tba ~ i l j rt.&fa inta the *ps TiUs e% @$_,-?&+%*,a v i t a fa&%. t h u s a d is pumped infrom UIe mill. - , .- -

, ah waeE2f:e, the tiwe m i w e $8 acbsEEy abut E50 too$:I ,*

~ ~ r c u a yery ~ t e q a le & refuo.e f o r chs wiw&rged.b "\., c-


7/20


8/20


9/20


10/20

This bigher pouring ra te , in i tself , i s advantageous and a sslution. 'aottmle pxitlblam wit8 wag& by imprsvsment in stopa Im1khe;rd s e a l s and byo p r & b rOzainiag in better managaJmeat af the paur ,

oar the past 5 gearsp, eeve ra l methads of improving sbppt3 seals viere '%ali@ control ir of psime impcbrteunce. Much improvement waa .*

.c$aehhsv8Qh he txaiafag asad empbyment al: a spg~ial i~;df .wo me n c r e w far -&'.$?

o m jobs. These two men, paid at 81 higher ro te than stope miners , $.Im w &a all the barl&pl;ngl ch*in~, mid ssding af the stape bulkhead* pr lo i @-.&-- . r --Yhe s d l t Vhe edge of the bur lap bulkhead - .z ' , )_

Ii,&st leaks occur , have been made using polyurethane f ro th foam, i,. I ' 8 -. , rm&&nd cement, and m o s t recent ly , an application of s tandard automotive ; .-ting m a t e r i a l a s i l lustrated in Figure 6. Of the three , only the

la318 k e n W W c i a l and prac t ica l . Standard automotive under-d a s a spray f r o m an Alemite p r e s s u r e pump. The entire k -&:G%t nd a 16 gallon m a t e r i a l supply, i l lustrated in Figure 7, i s easi ly '

d up a 24 inch ?n insh ssrvise r2i.e to the work place. Once them@ s simply connected to the usual l u u psi. a i r supply a t the work place

is rapidly sprayed along the edge of the sandfill bulkhead.of undercoat m a t e r i a l 1s sprayed along the edge of a typical

Whenever the stope walls a r e badly f rac tured , under-.c $ j r$$+kg i s s p r a ~ e d ack along these f r ac tu re s in the stope wall seve ra l feet

,v t f .'&re. Leakage along the edges of sea l s has been great ly reduced andL. 3 '


11/20


12/20


13/20

DIVSONDS

E

TAILNGPMP


14/20


15/20

'*SECTION THRU : *OPERATORS STATION

AT BOTTOM OF SAND TANK


16/20


17/20


18/20


19/20


20/20

hydraulic fill 1

Documents