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Mudgun is hydraulically operated machine that is used to close the tap hole of the blast furnace after draining out the metal / slag from the furnace from time to time.
It is heavy equipment and the most critical of all the equipments used in blast furnace.
The failure of the machine will lead to shut down of the furnace to close the tap hole.
Wiki User
∙ 12y ago
Wiki User
∙ 14y agoPreheated blast air blown into the furnace reacts with the carbon in the form of coke to produce carbon monoxide and heat. The carbon monoxide then reacts with the iron oxide to produce molten iron and carbon dioxide. Hot carbon dioxide, unreacted carbon monoxide, and nitrogen from the air pass up through the furnace as fresh feed material travels down into the reaction zone. As the material travels downward, the counter-current gases both preheat the feed charge, decompose the limestone to calcium oxide and carbon dioxide, and begin to reduce the iron oxides in the solid state.
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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 two processes are used to extract metals?
There are 3 means of extracting metals that are used more than any others and they are: Reduction with carbon: An ore of a metal which is less reactive than carbon is heated with carbon and the more reactive carbon will separate the metallic element from its ore e.g extraction of Iron in a blast furnace Electrolysis: An electrical current is passed through a solution of the metal ore and the metal is split from its ore and collects at an electrode, this is done for metals more reactive than carbon Extraction by other metals: As some metals are more reactive than the other this can be used to split up the metallic ore, an example of this is the extraction of Titanium which involves the use of several other more reactive metals.
Does a plant use oxygen to make carbon dioxide during a photosynthesis?
No, they use carbon dioxide to make oxygen.
What gas do producers use for carbon to make sugars and starches?
Carbon Dioxide
How does the use of these carbon stores affect the amount of carbon in the atmosphere?
i don know
Why is a blast furnace called blast furnace?
how does the blast furnace maintain the heat ?what is the function of CaCO3 ?how the slag protect the molten iron ?why does iron flow down to the bottom /how does the slag and molten iron get seperated ?what is use of waste gas /what is main impurity of iron in blast furnace ?
What is the waste gas in the Blast Furnace used for?
It is mostly carbon monoxide and nitrogen gases which has some heating value. So it is typically recovered and mixed with natural gas, &/or coke oven gas and used in boilers for steam or other steel heating furnaces for further processing of steel.
What has the author Tunner written?
Tunner. has written: 'On the use of lignite or brown coal in the blast furnace' -- subject(s): Blast furnaces, Lignite
What is the use of carbon dioxide?
used by plants and trees to be turned into oxygen.
How do you get pure iron and what is it used for?
we get it from reacting it in a blast furnace firstly we react oxygen and carbon coke to form carbon dioxide which then reacts further with the coke to form carbon monoxide which then reacts with oxygen from the iron oxide to form carbon dioxide and pure molten Iron. And we use it occasionaly in medicine as iron supplements or in anylytical chemistry.
Can the slag on a blast furnace be used in concrete or cement?
Slag from a blast furnace is usually ground down and used as a cement substitute as it is re-use of a waste product - it is not used on its own in concrete as the chemical reaction will not produce the same strength as proper cement.
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!
Why is steel rather than pure iron used to make car bodies?
It is because the iron is not strong enough to be able to handle the pressures that steel can. Pure iron is to soft and weak to be of any use and the iron from the blast furnace has too much carbon in it to be useful. That is the real reason
How nut coke is charged in blast furnace?
According to steel.nic.in; Coke Rate is measured in Kgs of BF Coke consumed per tonne of Hot Metal produced in the Blast Furnace(Kg/THM). By convention, this excludes coke (nut/pearl coke) mixed with sinter etc. Introduction of high quality coke to a blast furnace will result in lower coke rate, higher productivity and lower hot metal cost. This principal is followed by many private chemical firms like Coke Oven Consultants and so on.
Why is steel used to make the body of cars instead of iron?
Iron can rust. Actually it is because the iron is not strong enough to be able to handle the pressures that steel can. Pure iron is to soft and weak to be of any use and the iron from the blast furnace has too much carbon in it to be useful. That is the real reason
How is iron recovered from its ore?
How do we get iron from its ore? Heat. Lots of heat. We use a blast furnace to smelt the ore and get pig iron. Further processing yields cast iron or steel. Use the link below to get the scoop.
What is the best mud to use for mud runs?
Wet and sticky mud.
