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Does iron ore slag sink to the bottom of the blast furnace?
Slag is the waste which is skimmed off the top of the molten iron that comes out of the blast furnace. It is a mixture of calcium and magnesium compounds, plus other impurities such as iron oxide, but is mainly calcium silicate. The formula for calcium silicate is CaSiO3.
Why is a blast furnace called a blast furnace and not a furnace or fire furnace?
The basic concept of a blast furnace hasn't changed in more than 100 yrs. Modern furnaces are of course more complex due to newer technologies. First of all the furnace is basically a steel tank, inside it is lined with brick or gunite. The outside shell is protected from the heat by hundreds of "coolers" which are located around the entire furnace. Coolers are usually made from copper and have water inlets and outlets; water does not enter the inside of the furnace but is circulated in a closed loop system through a network of piping. At the bottom of the furnace are openings called tuyeres (ta-weers) through which hot air is blown into the furnace. The tuyeres are connected to a large brick-lined pipe called a bustle pipe. The bustle pipe is connected to a series of very large stoves. Outside air is fed into the stoves where it is heated. The heated air is then blown into the bustle pipe, through the tuyeres and into the furnace. The tuyeres can also be piped to allow the use of oxygen, pulverized coal, and natural gas to enhance the heat. Raw material is loaded into the top of the furnace by conveyor or a skip car which runs on a track pulled by cables. The raw materials are iron ore, limestone, coke and alloys chosen by the steelmaker. At the bottom of the furnace is an opening called the tap hole. The tap hole is plugged by a machine called a mud gun, the mud gun is loaded by hand with "mud" which is a high grade refractory that does not melt under the intense heat. After the materials reach the desired temp (usually about 3500 deg F) another machine called a tap drill drills out the mud to let the molten metal out of the furnace; this is known as "casting". Molten metal and slag are separated by a series of channels, slag (girl) will flow to a pit or slag car to be carried away. The slag is cooled to be used in a variety products such as an additive in concrete. The metal is channeled to bottle cars to be transported to different areas of the mill for processing. This is a very basic overview of a blast furnace, they are highly complex and very dangerous!
How can zinc be separated from lead in the condenser?
In the blast furnace a mixed lead/zinc sinter is added and the lead bullion is tapped conventionally from the bottom of the furnace while metallic zinc vapour is distilled off and captured/condensed by a spray of molten lead droplets. A solution of zinc and lead leaving the condenser, when cooled this cool zinc can be floated off, while the lead is recirculated to the collector. Zinc being less dense can be continuously removed from the top layers.
Why wont your electric furnace shut off?
There could be several reasons why an electric furnace won't shut off, including a malfunctioning thermostat, a stuck relay, or a problem with the limit switch. It's best to have a professional technician inspect and diagnose the issue to ensure safe and proper operation of the furnace.
What type of rock form is galena in?
First: Roast the Galena in a blast furnace for 30 minutes. Second: Add Carbon to the blast furnace to remove impurities. Third: Tag off your lead from the bottom of the blast furnace.
How is iron removed from a blast furnace?
Iron is removed from a blast furnace through a process called tapping, where a hole at the base of the furnace is opened to release the molten iron. The iron is then cast into molds to solidify and form pig iron or further processed into steel.
Does iron ore slag sink to the bottom of the blast furnace?
Slag is the waste which is skimmed off the top of the molten iron that comes out of the blast furnace. It is a mixture of calcium and magnesium compounds, plus other impurities such as iron oxide, but is mainly calcium silicate. The formula for calcium silicate is CaSiO3.
What are the proess of iron production in blast furnace?
First we add the basic iron production elements (i.e, limiston,coreand processed iron e.g hematite,Fe2O3 ) the coke is react with oxygen and form crbone monoxide the limestone decomposed to CaO and carbon dioxide,CO2 carbondioxide,CO2 react with Fe2O3 to form Fe and CO CaO (reaction flux) react with almunia and silica form slag the Fe is removed as a molton ways below blast furnace and sage is removed anather ways,THANK YOU FOR READ
How do I turn the furnace off?
To turn off the furnace, locate the power switch or breaker connected to the furnace and switch it off. This will shut down the furnace and stop it from running.
How do I turn off the furnace in my home?
To turn off the furnace in your home, locate the power switch or breaker for the furnace and switch it off. This will stop the furnace from running and producing heat.
When did Blast Off happen?
Blast Off happened in 1989.
Where does the carbon that is used in blast furnace come from?
Coal, distilled to drive off itscontents and leave the carbon, plus a little bit of non-volatile impurities, principally silica; in a form called Coke. (No relation to the colloquialcontraction of Coca-Cola! :-) )
Extraction of lead from galena by heating process?
First: Roast the Galena in a blast furnace for 30 minuets. Second: Add Carbon to the blast furnace to remove impurities. Third: Tag off your lead from the bottom of the blast furnace.
Is using the Blast Furnace for extracting iron from its Ore expensive?
Using a blast furnace to extract iron from its ore is cost-effective and efficient due to economies of scale and high production volumes. The initial setup cost of a blast furnace is high, but it pays off in the long run by producing large quantities of iron at a lower cost per unit. Additionally, advancements in technology have made the process more energy efficient, further reducing operational costs.
Where does carbon that is used in a blast furnace come from?
Coal, distilled in a retort to expel the volatile content and leave the carbon as a spongy-looking solid called "coke".(Strange - there are several versions of this question, suggesting to me poor teaching or text-books that focus only on the chemistry and not the overall process, purpose?and materials.)?
How is iron refined?
Iron is refined by a blast furnace. A furnace is filled with iron ore, coke (which is charcoal made from coal) and limestone. Huge amounts of air are blasted into the furnace, the calcium from the limestone combines with silicates (which are minerals containing silicon and oxygen) to form slag (which is run off ore from the furnace). A layer of liquid iron collects under the slag, at the bottom of the furnace. The liquid iron is periodically let out to cool. Charlie
How do you identify an electric furnace from a gas furnace?
an electric furnace runs off of 208/230 Volts while a typical gas furnace runs off of 120 also a gas furnace will have a valve for the gas relay where the gas enters the furnace.
