The met coke of 40-100mm

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Tianjin
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TT OR LC
Min Order Qty:
1000 m.t.
Supply Capability:
100000 m.t./month

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1. Structure of Metallurgical Coke of The met coke of 40-100mm Description:

Coke is made by high temperature metallurgical coke for blast furnace smelting, casting and gasification. Occurring in the process of coking after recovery and purification of coke oven gas is a high calorific value of fuel, is an important industrial raw material in organic synthesis.

In order to ensure the coking coal resources of domestic demand, to carry out the national energy conservation and emissions reduction program, China has many policies to control of coke export, export enterprises enthusiasm obviously inadequate.2009 countries in two batch issued 11.91 million tons of coke quota, and 12.01 million tons of export quotas flat in 2008.In the current import under the condition of weak demand, coke quota is too enough.

2. Main Features of the Metallurgical Coke of The met coke of 40-100mm:

• Quality assurance

• Mutual benefit

• Preferential price

• Various choice

3. Metallurgical Coke of The met coke of 40-100mm Images:

 

The met coke of 40-100mm

The met coke of 40-100mm

The met coke of 40-100mm


4. Metallurgical Coke of The met coke of 40-100mm Specification:

 

Parameters

Guarantee

Rejection

Total Moisture ( As received basis )

5% max


Ash ( dry basis )

12.5% max

13.5%

Volatile Matter (dry basis )

1.5% max

> 1.8%

Sulphur ( dry basis )

0.65% max

> 0.75%

Phosphorus ( dry basis )

0.035% max

> 0.045%

M10

8% max

10%

M40

82% min

80%

CSR

62% min

60%

CRI

28% max

30%

Size 30-80 mm 

90% min


+80 mm

5% max

8%

-30mm

5% max

>8%


5. FAQ

Brazil, India and other countries with the improving gradually form a complete set of coke production capacity, the more inclined to imports of coking coal from coking, dependency of China's coke has a tendency to gradually reduce.


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Q:Relationship between coke M40 and M25
50 kilograms of size greater than 60 mm coke coke samples, in meters Qom in the drum at 50 rpm speed of 100 revolutions (4 minutes), with the aperture is 40 mm (25 mm) sieve screening, measuring more than 40 mm (25 mm) and the weight percentage of the coke, the total weight of the coke drum, denoted as M40 (or M25).
Q:Coke indicators are divided into grades
The index of pore structure is mainly expressed by the porosity rate (the percentage of the total volume of coke), which affects the reactivity and strength of coke. Different uses of different coke porosity index requirements, the general requirements of metallurgical coke porosity in the 40 ~ 45%, 35 ~ 40% in coke, coke export demand in about 30%. Coke crack degree and the porosity level, and the coking coal has a direct relationship, such as coal based coke refining, crack, high porosity, low strength; with coal as the foundation of the coal refining coke crack less, low porosity and high strength
Q:In the coke analysis index, M40% and M25% respectively mean what?
M40% and M25% represent the breaking strength rate, 40%>25%, which means that the M40% coke is more resistant than M25%
Q:Types of coke and use of coke
The vertical furnace processing of low metamorphic coal production of calcium carbide, ferroalloy, coke, chemical fertilizer production and ultra high power electrode, aerospace and medical high technology and high value-added products such as carbon needle coke the world's most complete and unique characteristics of the Chinese coking industrial system.
Q:How much coke oven gas is produced?
From the production equipment and technology of the popular view, a ton of coke oven gas produces about 400 cubic meters, of which about 200 cubic meters of coke oven returned through the pipeline used for coking heat source, the remaining more than and 200 cubic meters was emptying, "or the lantern".
Q:What is the reasonable standard of volatile content of coke
The sulfur content in coke: sulfur is a harmful impurity of iron smelting, which reduce the quality of pig iron. The sulfur content in the pig iron is more than 0.07%.
Q:What is the main purpose of the use of coke
(2) reducing agent.The reduction of ore in blast furnace is accomplished by indirect reduction and direct reduction. The indirect reduction is about 400 degrees centigrade. The indirect reduction is rising gas CO reduction in ore, iron oxide from high iron gradually reduced low iron until the metal iron, while producing CO2:
Q:What is the essential difference between coal and coke?
(1) power coal(2) coking coal (bituminous coal)(3) coal used in coal chemical industry, which mainly includes gasification coal, coal for low temperature carbonization, hydrogenation of liquefied coal and so on.
Q:How coal is turned into coke in the coking chamber
The kiln chamber wall set to continue burning, and some heat incoming kiln (indirect heating). High temperature gas flow (800 DEG C, is mixed with coal pyrolysis, chemical products into the fabric of unburned.
Q:What is the use of coke
The physical properties of the coke coke coke screening composition, physical properties including bulk density, coke coke coke true relative density, apparent relative density and porosity of coke, coke, coke, thermal conductivity and specific heat of coke thermal stress, ignition temperature of coke, coke, coke thermal expansion coefficient of shrinkage, resistivity and permeability of coke coke. The physical properties of coke are closely related to its mechanical strength, thermal strength and chemical properties at room temperature. Following the main physical properties of coke: true density is 1.8-1.95g/cm3 0.88-1.08g/ cm3; apparent density; porosity is 35-55%; bulk density is 400-500kg/ m3; the average heat capacity is 0.808kj/ (KGK) (100 C), 1.465kj/ (KGK) (1000 DEG C); the thermal conductivity is 2.64kj/ (MHK) (room temperature), 6.91kg/ (MHK) (900 DEG C); ignition temperature (air) is 450-650 DEG C; dry ash free calorific value is 30-32KJ/g;

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