Showing 36 items
matching ore crusher
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Bendigo Historical Society Inc.Tool - DOLLY POT
... with a pestle for hand crushing gold bearing ore. No pestle... for hand crushing gold bearing ore. No pestle with dolly pot. Tool ...Iron dolly pot. Cylindrical shape, open at top. Used with a pestle for hand crushing gold bearing ore. No pestle with dolly pot. -
Bendigo Historical Society Inc.Tool - MERCURY BUCKET
... of the ore. By the late 1850s the most common way of crushing ...Cast iron mercury bucket, used to hold mercury, potentially in the process of recovering minute pieces of gold mixed in soil and sediments. See research page for description of one process of using mercury to extract gold.gold mines, mining equipment, mercury bucket, miners used mercury in a number of ways to amalgamate gold, with each mill or battery operator having their preferred method depending on the nature of the ore. by the late 1850s the most common way of crushing goldbearing quartz ores or consolidated alluvial cements was in a stamp battery. the battery featured heavy iron stamp heads held in a frame, with each head often weighing up to 500 pounds (226 kg) or more (see msv 1880, page 45) (birrell 2005). stamp heads were lifted and dropped by a rotating overhead cam shaft driven by a steam engine or water wheel. ore was fed into a large cast-iron battery box, mixed with a steady stream of water, and pulverised by the stamp heads. in some batteries, mercury was placed in the base of the boxes to amalgamate with freed gold. the violent agitation of the mercury in the mortar box, however, could cause the mercury to break into myriad tiny globules that were carried away by the water with the tailings, thus losing a certain amount of gold in the process (thompson 1867; ritchie & hooker 1997). the water and sand slurry was splashed by the falling stamps from the box through fine mesh screens and onto inclined wooden tables below the mortar box (figure 2). the tables were covered with copper sheets or plates coated with mercury, which caught and amalgamated with a portion of the gold. the grey putty-like amalgam was periodically scraped off the sheets and retorted in a furnace to collect the gold and recover the mercury for reuse. mercury was inevitably lost from the plates, while poor maintenance resulted in further losses of gold and mercury in the tailings. mercury use and loss from gold mining in 19th century victoria. peter davies1, susan lawrence, and jodi turnbull, department of archaeology and history, la trobe university. -
Bendigo Historical Society Inc.Functional object - Amalgam bucket
Ore bearing rock brought out of the mine was crushed at the battery by heavy metal stampers and the fine material passed over copper pates coated with mercury. Gold particles would combine with the mercury forming an amalgam which was then scrapped off the copper plates and put into the amalgam bucket ready for retorting too extract the gold. The amalgam of mercury and gold was placed into the retort which was heated to evaporate the mercury. The mercury cooled as it ran down the pipe which was recovered to be reused leaving the gold behind. The gold would later be put into a crucible and heated to burn of impurities and the molten pure gold poured into an ingot.A heavy cast iron bucket 20 centimetres high, 16 centimetres in diameter at its base and 22 centimetres diameter at the top. It has a spout five centimetres wide protruding two centimetres. There is a handle which is a semi- circular shape 19 centimetre wide extending 14 centimetres above the bucket The inside of the bucket has an enamel coating. amalgam bucket, bendigo gold, gold retort -
Stawell Historical Society IncPhotograph, Magdala cum Moonlight Mine Poppet Head 1899
Magdala cum Moonlight Mine Poppet Head 1899 Darling Road can be seen passing under the trestle tramway. Just in front of the first ore bin, a man can be seen opening the door of the bin to fill a dray for the crushing battery.Poppet Head and surrounding infrastructure.stawell gold mining -
Stawell Historical Society IncPhotograph, Magdala Cum Moonlight Gold Mining company and Workers c1890
Magdala cum Moonlight Mine. Group of mine workers c1890 against the background of the mine. The wooden ramp built on trestles was used by horse drawn drays to deliver the Quartz for treatment in the cyanide vats.Dark photo of mine workers lined up in front of ore ramp. Horses and drays would go up the ramp to dump the crushed sand into the cyanide vats. Building is on right."Elite" Studio Co. Melbournestawell gold mining -
Bendigo Historical Society Inc.Photograph - MINING IN BENDIGO COLLECTION: MINING PHOTOGRAPHS
BHS CollectionFolded paper with copies of photos of mines and various mining buildings. On the front is a view from New Chum Hill, looking south in 1890's. Pictured is the Lazarus Crushing Plant and boiler house, Lansell's '222'. Amd the new Chum Mines in the background. On the inside at the top is the New Chum Railway, Golden Square. Pictured is the mine and its buildings, two chimneys, two large wood stacks and other mines in the background. On the left, a man is standing on the side of the railway line beside the mine. The next picture is the United Hustlers and Redan Mine, west of Comet Hill State School, Sandhurst Road. It shows the mine and its buildings, chimney, ore bins, mullock heap and tramway. The middle picture is the Central Deborah, Violet Street, near Bendigo Creek, Golden Square. It shows the poppet legs, buildings and some machinery behind the large building. The large building has eight ventilators in the roof. The buildings are made of corrugated iron. The bottom left picture is the Deborah Mine, Quarry Hill. The picture shows the poppet legs on the hilltop, the buildings beside it, a square chimney behind the poppet legs and some vegetation and a peppercorn tree in the foreground. The far building also has ventilators in the roof. The picture on the right is underground at 1000 feet level in the Deborah Mine. Pictured are three men with a rock drill. On the back, at the top is a picture of a First Motion Winding Engine at Deborah - later at Central Deborah. The picture shows the engine and driver. The middle picture is the South New Moon Mine, Eaglehawk - leading mine in State in 1903. The picture shows the poppet legs, buildings, chimney and a high tramway. In the foreground is a dam. The bottom picture is Victoria Hill looking south to New Chum Hill. In the foreground is Lansell's '180' Mine and Ballerstedt's Open Cut and in the background are the 'New Chum and Victoria', 'Old Chum' and the 'North Old Chum'.photo, mining in bendigo, mining photographs, lazarus crushing plant, lansell's 222, new chum mines, new chum railway, united hustlers and redan mine, comet hill state school, central deborah, deborah mine, first motion winding engine, south new moon mine, lansell's 180, ballerstedt's open cut, new chum and victoria, old chum, north old chum, square chimney
