Hopper Car Load
A blast furnace is a type of metallurgical furnace used for smelting to produce metals, typically iron and steel in general, = "http://www.smallcapinvestor.com/smallcapinsights/china/2008-06-19-check_on_china_general_steel_holdings_inc title "target =" _blank "> http://www.smallcapinvestor.com/smallcapinsights/china/2008-06-19 -check_on_china_general_steel_holdings_inc. In a blast furnace, fuel and ore are continuously introduced and combined through the top of the furnace, while the air (sometimes with oxygen enrichment) is forced into the bottom of the camera, so that chemical reactions that occur throughout the furnace as the material flows downward. The end products are normally molten metal and slag phases extracted from the bottom and the flue gas exiting the top of the furnace.
The Scotch nozzle (a nozzle is a tube, pipe or tube through which air is blown into a furnace or stove.) It is cast iron with a wrought-iron coil pipe for cooling water, cast on the walls. Lancashire nozzle is a hollow truncated cone with double walls, the cooling water flowing between them. A spray nozzle open is somewhat similar to the previous, but the back is open (open nozzle), and the walls are kept cool by jets of water from the perforated pipes inside. In the dispenser nozzle, which is of a similar type, water is distributed on a sheet to cool the upper shell, a water jet Cooling of the nose, and the water running along the bottom to the exit.
A vacuum or exhaust nozzle is one which the water is sucked out, instead of be forced through, to reduce leakage in the furnace if it breaks the nozzle. The explosion of the stoves is led into a large diameter pipe (tube hustle) surrounding the furnace and above the nozzle is connected. At one point near the top of the chimney is a hole for TAP-ping of the slag (slag notch, ash First, flushing hole, mono), and below and one side is the iron notch or hole to take the pounding iron.
In the modern kilns fireplace is completely inside the furnace, and is called a home closed, the content is being harnessed through a hole in the wall. This provision was introduced by Lurmann, and was called a closed front (front Lurmann). "Before it was the custom of having an open bow (front open). In front of the oven is a bow-shaped opening on extending from the bottom of the oven with a little above the level of the jets, the sides and roof of this opening formed a cavity known as the household level.
A section of one fire brick, called the dam, was taken to the blast furnaces at Duquesne to nozzle, formed the back of the fireplace so, and was supported by a stone (rock dam) or cast iron motherboard, the motherboard was a vertical slit which was stopped with loam, and allows for taking advantage of a hole that made at an appropriate level, while the excess soot escaped through a semicircular notch of ash. The arch above the dam was called Tymp but that remained in the position of a plate Tymp (Tymp stone), cast iron, and generally cooled by flowing water.
The agreement closed entrance of Lurmann slag was tapped through a water-cooled nozzle (cinder block) located in a water-cooled cast iron plate (plate slag). On top the furnace is the charging arrangement that usually consists of two bells, one large bottom, and a smaller one above, for each facility in a hopper (bell and the hopper, cup and cone), and arranged so that only one floor at a time, thus preventing gas leakage. Various forms of mineral distribution devices have been designed to ensure available, including the load inside the oven.
Load – The ore is kept in huge piles (Stack), in a courtyard, and is managed by the great voyages Cranes (Ore Bridge, bridge cranes). It is loaded into containers from running in the hopper bottom of small vehicles always weigh scale, and they are discharged into cubes or boxes (skip), rising to the top of the oven until a track inclined (jump off the bridge), and dumped automatically at the top of the bell.
The limestone is handled similarly, the Coca-Cola is measured by volume (sometimes heavy), the contents of the jump that represents a certain weight. This method is known as jumping charge. The older method, now rarely used for new furnaces, is to weigh the materials in trucks posed to the top the furnace by a lift (elevator, lift), and dumped around the hood with his hand (truck load). A complete or unit load of ore, coke, limestone and is called a round.
Modern blast furnaces may have more than 30 nozzles, through which hot air is forced into the oven. They are usually constructed from copper and cooled with water to withstand the very high, extreme temperatures needed for general construction in steel and other products.
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Sarah E. Martin is a freelance marketing writer specializing in business construction, industrial manufacturing, and
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Article Source: ArticlesBase.com – Hot Blast Stoves in Steel Making
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