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What kind of fire bricks are used for molten blast furnace slag?
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∙ 14y ago
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Is a molten rock the same as fire?
No. Fire is a chemical reaction between oxygen and some flammable substance that produces heat and light. Molten rock is rock that has become so hot that is has melted.
How are the bricks beneath a fireplace heated by the flames?
At first, they may be heated by radiation- heat radiated by the fire. As the fire burns, and ashes build up, they will be heated by conduction- heat conducted (poorly) through the ash to the bricks.
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!
What is the difference between lava and fire?
Fire is a chemical reaction between oxygen and some flammable substance that produces heat and light. Lava is molten rock that has reached Earth's surface from a volcano.
What volcanic rock can be used to build houses?
molten rock because it sturdy and it can keep your fire burning;)
Calcium silicate act as a protective layer in blast furnace how?
It acts as a Heat insulator. It prevents escape of heat, thus keeping the iron in molten state. It also prevents fire inside the furnace.
Why are blast furnaces lined with fire bricks?
They are lined with fire bricks because of the intense heat and chemical reactions that are present in the blast furnace. The temperature alone would quickly melt the outer metal shell. Different types of bricks are used in the different parts of the furnace depending on the temperature in that part of the furnace, the lowest temperatures being at the top, and the highest temperatures in the bottom in what is known as the bosh and the hearth. Abrasion and mechanical damage can also occur to the bricks, which is why blast funaces need to be shut down after a certain number of years to be relined, or shut down briefly for maintenance which would include adding more cooling in areas where the brick lining is getting too thin.
Why you used carbon refractory at blast furnace?
You don't. Carbon burns! The fuel is carbon (as coke). The refractory lining (fire-bricks) is made from minerals with very high melting-points.
What are the types of refractory bricks?
There are many types of refractory bricks available. Those are Andalusite Bricks, Dense Silica Brick for Glass Furnace, Corundum Mullite Brick, Corundum Brick, Fireclay Brick for Coke Oven, Fireclay Brick for Blast Furnace, Low Creep High Alumina Brick for Hot Stoves, High Alumina Bricks for Blast Furnaces, General Refractory Fireclay Brick, General High alumina refractory brick, Insulating firebrick, Silica bricks-coke oven refractories, Magnesia brick, Magnesia Bricks for Cement Industry, High Alumina Bricks For Cement Industry, Fused cast Bricks, Sillimanite Bottom Blocks, Low Porosity Fireclay Bricks, Zirconia Bricks, General fireclay brick for steel industry, Refractory insulating fire brick B&C series, Insulating bricks etc.
How is iron ore converted into iron?
you can smelt it. You put it in a blast furnace with carbon. This will be able to separate the iron from the iron ore The carbon is in the form of coke, providing both fuel for the huge amount of heat at the high temperature needed, and the carbon necessary to separate chemically the iron from the iron-oxide which is the ore itself. Limestone is added as a flux to help remove silica and other impurities as molten "slag" that floats on the molten iron, and is tapped off separately. The "blast" part refers to the powerful blasts of air pre-heated by the furnace's flue gases, and blown into the fire to raise it to white heat.
What are some tips when playing the Blast Furnace Minigame?
The Blast Furnace Mini game has many tips available to help the player obtain maximum pleasure from playing the game. Players must collect all the ingredients required to fire up the furnace. Players must also collect all the tools which will be required to obtain their ingredients.
What is furnance masonry?
certain furnaces use fire bricks to prevent hotspots and to help retain heat within the fire box, this is where you would find masonry in a furnace application. in most cases the fire blocks are dry stacked along the sides and bottom.
What is fire sand?
Fire or furnace sand is generally coarser than the sand used in metal molding. It is used in building floors for acid open-hearth furnaces and in lining the cupolas and ladles that contain molten metal in the foundry industries.
On Pokemon ruby what TM number is fire blast?
TM38 - Fire Blast!
What is a furnace?
Furnace is an enclosed fire place show me parts of a coal fired furnace
What is the name of fire bricks used in an oven?
alumina bricks
How do you make bricks on Doodle God?
clay+fire=bricks
