Metallurgical coke is heating coal without air at a temperature of 1150 degrees Celsius and under a certain time with negative pressure. By doing this process, the non-carbon content in the whole coal is burned in the furnaces and is removed as heat from the furnaces, and only coke with a carbon purity above 85% remains in the furnaces. One of the most important and decisive input materials in blast furnace production is that for each ton of cast iron produced in the blast furnace, about 450 tons of metallurgical coke is consumed, and since it is more than 70% of the world's steel. Cast iron production method is produced in blast furnaces, which has an important metallurgy in the steel industry and economic factors. According to the value of metallurgical coke, metallurgical coke makes up about 50-60% of the total price of cast iron per ton of cast iron.

This article is about fuel coke derived from coal. For fuel coke derived from petroleum, see Petroleum coke.

Raw coke and converted to metallurgical coke
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Coke is a gray, hard, porous fuel with a large amount of carbon and few impurities, produced in the absence of air - by a destructive degradation process, by heating coal or oil. It is an important industrial product, mainly used in iron ore smelting, but also used as fuel in furnaces and forgings when air pollution is a concern.
The unqualified term "coke" usually refers to a product obtained from low-ash, low-sulfur bituminous coal by a process called coking. A similar product called petroleum coke or domestic coke is obtained from the crude oil of oil refineries. Coke may also form naturally by geological processes
Sale of metallurgical coke -

Coke Metallurgy

عنوان با فونت ایران‌سنس

فروش کک متالورژی – انواع کک متالوژی – خرید و فروش کک متالوژی – تولید کنندگان کک متالوژی – بسته بندی کک متالوژی – پودر کک متالورژی – زغال کک متالورژی – صادرات کک متالورژی – نرمه کک متالورژی – کک متالورژی اصفهان – فروش کک متالورژی در اصفهان – استاندارد کک متالورژی – کک متالورژی بورس کالا – بورس کک متالورژی – کک متالورژی تهران – کک متالورژی ترکمنستان –قیمت کک متالوژی چین – خرید کک متالوژی – خط تولید کک متالوژی – کک متالوژی در مازنداران – درباره کک متالوژی – کک متالوژی ذوب آهن اصفهان – کک متالوژی را از کجا تهیه کنیم – کک متالوژی را چگونه از بین ببریم – کک متالوژی روز – کک متالوژی روش تولید – کک متالوژی زرند -کک متالوژی ژاپنی – کک متالوژی سمنان شرکت های کک متالوژی – کک متالورژی صادرتی – کک متالورژی صنعتی – کک متالوژی ضرر دارد – کک متالوژی ضعیف – کک متالوژی طبس – کک متالوژی ظاهری – کک متالوژی ظفر –
کک متالوژی ظهر – کک متالوژی ظاهر فروشنده کک متالورژی – کک متالورژی کربن گستر قومس – کارایی کک متالورژی – کک متالورژی مشهد – کک متالورژی مصرف – مشخصات کک متالوژی – کک متالورژی وارداتی – فراوری مواد معدنی زغال آنتراسیت و کک متالوژی – کک متالوژی ها – کک متالوژی هلندی – کک متالوژی هراز – کک متالورژی – کک متالورژی آنالیز – کک متالوژی0.5 - کک متالوژی0.2 - کک متالوژی0.3 - کک متالوژی0.0 - کک متالوژی3333333333333333333 3 3D - کک متالوژی 4G - کک متالوژی 5G - کک متالوژی5D ­- کک متالوژی70 – کک9mm -  متالوژی8mm - کک متالوژی80 درصد - کک متالوژی
 
 

Coal in the manufacture of metallurgical coke

Metallurgical coal is a special type of coal that is used in making metallurgical coke. There are two types of coal used to make metallurgical coke: hard coking coal and semi-hard coking coal, which is ideal for coking because it melts, swells, and solidifies again when placed in a large furnace. be. This type of coal also has few impurities. A third type of metallurgical coal, PCI, is sometimes used in steel or iron making to replace more expensive metallurgical coke.

Analysis of metallurgical coke

Coke is created by heating metallurgical coal to about 2,000 degrees Fahrenheit. According to the World Coal Association, the coking process takes about 12 to 36 hours in the oven. After exiting the furnace, the coke is cooled with water or air before being stored or fed directly into the blast furnace. According to the US Energy Information Administration, the final product is approximately two-thirds the weight of the raw material.
Factors affecting the quality of metallurgical coke

High-quality coke is usually made from high-quality coal. Coke manufacturers usually use coal blending to improve the quality of coke produced. A quality coal should not put too much pressure on the furnace wall and should be small enough to allow easy removal from the face coke oven. According to the American Iron and Steel Institute, coke properties and process performance are affected by moisture content, density, coal weathering and several other factors.

Uses of metallurgical coke

Regarding the use of metallurgical coke, it should be said that it is mainly used in the production of iron, which in turn is used as the main material of steel. The World Coal Association describes the iron making process as follows. During a typical method of iron making, iron ore, coke and small amounts of minerals used to collect impurities are placed in a blast furnace. Superheated air is blown into the furnace and causes the coke to burn. This burning produces carbon monoxide, which reacts with the iron ore and provides the heat to melt the hot iron. The valve at the bottom of the furnace allows molten iron as well as impurities to escape from the furnace.

Structure and strength of metallurgical coke

This study was conducted with the aim of investigating the relationship between the tensile strength of metallurgical coke and the textural composition of the carbon matrix and the porous structure of coke, as well as to further evaluate the use of these structural characteristics as the basis of coke strength prediction methods. Forty-four investigated cokes were produced in a small furnace of mixed coal based on six different coals of different grades. Their tissue composition was examined by polarized light microscopy, while pore structural parameters were measured by computerized image analysis coupled to reflected light microscopy. The tensile strength of metallurgical coke can be accurately related to textural data using several relationships, some of which are based on a model for coke inelasticity. Relationships between tensile strength and pore soil parameters were less successful, possibly due to problems associated with the measurement system used. Non-parallel relationships were also established and investigated with a combination of structural data and pore texture. In this way, it was shown that the relationship between the tensile strength and the calculation of the calculated texture data was the basis of the coke strength prediction method. Also, the tensile strength can be calculated from the mixture composition and the tensile strength of the coke produced from the component coke. Each of these two methods can be used because each of these two methods has great value in different situations.

What you need to know about the coal needed to make metallurgical coke...

Coal, also known as coking coal, is also used to produce metallurgical coke, which is the main source of carbon used in steelmaking. Coal is a naturally occurring sedimentary rock that has been deposited over millions of years by the formation of plants and other organic matter and exposed to geological forces. Heat and pressure cause physical and chemical changes on it, and as a result, coal is enriched with carbon.

Coal in metallurgical coke

Coal in metallurgical coke differs from thermal coal, which is used for power and heating, in terms of carbon and its coking ability. Its preparation has the ability to convert coal into coke, a pure form of carbon that can be used in basic oxygen furnaces. Bituminous coal, usually classified as a metallurgical class, is harder and blacker and contains more carbon and less moisture and ash than low-rank coal.

The grade of coal and its firing ability is determined by the rank of the coal. The measurement of volatile matter and transformation rate as well as mineral impurities and the ability of coal to melt, swell and correct when heated are important and effective factors. The three main categories of coal in metallurgical coke are:

• Hard Coking Coal (HCC)
• Semi-soft coking coal (SSCC)
• Raw coal (PCI)
Hard coking coals, such as anthracite, have better metallurgical coking properties than semi-soft coking coals, allowing them to command a higher price. HCC Australia is regarded as the industry benchmark in metallurgical coke.
While PCI coal is not often classified as coal in metallurgical coke, it is still used as an energy source in the steelmaking process and can partially replace metallurgical coke in some blast furnaces. replace