Show THE NEW SUMPTER SMELTER the smelter management is persisting in steady work despite the impediments snow offers the frame for the furnace room is now being raised brick laid for the long dust flue the heavy masonry placed for the wall of the second terrace and excavation begun for the third terrace the frame for the sampler and storage bins will be raised shortly covering the second terrace the office and laboratory is completed outside while the finishing tofi touches ches are being given the inside the style of finish for the superintendents office drafting room and general office is tasteful the foundations for the dry assay furnace are to be laid while the beams to support the weighing scales independently of the floor ar are e in place the great dimensions of the buildings labor required in their erection and the permanent style of everything is revealed by a hasty trip to the smelter grounds where above men are constantly engaged the place presents a most animated sight the large force of bricklayers masons and carpe carpenters mingling with the crews excavating and the teams hauling material for construction in this issue the american will describe the smelter proper giving a detailed account of the furnace that is to be installed As stated in the general article it has a capacity of about tons and collects values in a copper and iron matte the furnace will be inches at the tu yeres and from the out the packet will spread to inches at the changing floor the furnace will have eight on a side and will be fitted for both hot and cold blasts the bustle pipe will be lined with a fire resisting asbestos mixture for withstanding the hot blast when it is in service and the blast pipe from the hot blast stove to the bustle stove will be similarly lined the first one of these will go through the hot blast stove and the other will pass around the stove so that as necessity may require either a hot or cold blast may be used the hot blast stove proper will consist of eight rows of pipes with six pipes in each row the pipes are like an inverted U and air has to pass through the six inverted Us before it reaches the blower pipe from the hot blast stove thence it is conducted to the furnace through the lined blast pipe the hot blast stove is feet and will heat the air to a temperature of from to degrees fahrenheit on the inside of the furnace building will be situated an elevator which will raise the foul slag from the tapping floor to the charging floor and will also raise the flue dust from the tapping floor to the top of the storage bins from there the flue dust will be taken to the bri plant and thence pass with the concentrates and other fines on the charging floor there will be two 6 beam fairbanks morse scales for weighing the furnace charges on the other side of the smelter building and under separate roof will be located a tank house which will contain a acot tank with h a capacity of gallons of water this will furnish water for the jackets of the furnace and for the boilers in the power plant another tank will be located on top of the hill to be used for fire protection this is at an elevation giving good pressure in all parts of the smelter plant and thus obviates the necessity of any more extensive precautionary work the dust chamber will be feet over all the chamber inside of the building will be six feet wide outside the chamber enlarges to eight feet and just before entering the steel stack wili wih enlarge into an apartment feet and 22 feet high here the current with the gases from the furnace is checked in its rapid progress much like a river entering a lake or still body of water where there is a strong precipitating influence the panicles pa nicles cles of valuable metals that have not been dropped along the dust chamber will be precipitated in this big chamber the iron stack will be feet high and will set upon a base of about 25 feet in height placing the top of the stack feet above the charging floor all parts of the smelting smelling sm elting furnace are of the latest type the hot blast stove will eff effect act a high saving in coke being used as a fuel in it it discharges the air into the furnace at a temperature of to degrees fahrenheit in this manner costly coke will be saved and as wood is cheap here operation will be reduced to the lowest economy in the consumption of fuel when this plant is completed sumpter may boast one of the most efficient amel of the world its one furnace will have as great a saving capacity of the precious and useful metals as the bigger furnaces of the combines plant american sumpter oregon |