Met coke / blast furnace coke
- Ref Price:
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- Loading Port:
- Tianjin
- Payment Terms:
- TT OR LC
- Min Order Qty:
- 1000 m.t.
- Supply Capability:
- 100000 m.t./month
- Option:
- size
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Item specifice
1. Structure of Met coke / blast furnace coke 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.
Iron ore species type is various, has found that the iron content of iron ore minerals and about 300 kinds, among the common there are more than 170 kinds.But in the current technical conditions, the main industrial utilization value is magnetic hematite, magnetite, hematite, ilmenite, limonite and siderite, etc.
Many but not rich iron ore resources in our country is given priority to with low grade ore, rich ore resources reserves accounted for only 1.8%, while lean ore reserves accounted for 47.6%.Small and medium-sized mines, large mine less, less super-large ore.Ore type complex, difficult dressing and multicomponent (partner) of raw ore than major.
2. Main Features of the Met coke / blast furnace coke ：
• Quality assurance
• Mutual benefit
• Preferential price
• Various choice
3. Met coke / blast furnace coke Images:
4. Met coke / blast furnace coke Specification:
ItemGradeSize/mm
>40>2525~10
Ash/%I<12
II12~13.5
III13.5~15
SI≤0.6
II0.6~0.8
III0.8~1.0
Compressive
Strength
M25/%
(M40)I>92 (>80)
II92~88 (>76~80)
III88~83 (>72~76)
M10/%I≤7.0
II≤8.5
III10
Volatile Matter/%1.9
Moisture/%4.0+/-1.05.0+/-2.0≤12.0
Powder content/%4.05.012.0
5. FAQ
Q: What certifications do you have?
A: We are specialized in the photovoltaic field, with a focus on solar cells, modules and photovoltaic power generation systems. We employ advanced monocrystalline and polycrystalline silicon solar cell manufacturing equipment, producing highly efficient and reliable products sold in Europe, the Americas and Australia. Our company has passed ISO9001 quality management system certification, and our products have obtained TUV-IEC, CE and ISO certification.
- Q:What is the effect of coke moisture on the blast furnace?
- 2, if the long-term use of water containing high coke and blast furnace gas purification system and dry, it will affect the normal operation of the purification system (filtration pressure increased, serious and even lead to normal filtration, also lead to dust can not be normal unloading etc.); more serious for the blast furnace with net gas said not even a normal discharge (top pressure tank or a pressure higher than indoor clock dozens of kPa
- Q:How long should it be to store coke in the open air
- And the most important thing is to avoid the sun. Coal and coke, like the sun, the temperature inside the stack is very high. So try to cool down.
- Q:Natural gas can replace coke smelting pig iron
- No, because the coke in the blast furnace to heat, reducing agent, skeleton and carbon supply four functions
- Q:How much coal can a kilogram of coal weigh?
- But now the coking industry will not only coke coke, but with coking coal, fat coal, gas coal and other coal mixed coking
- Q:How to calculate the average particle size of coke
- Introduction of a commonly used, called "surface area volume average diameter", abbreviated D (3,2):D (3,2) = 1 / (fVI (/DI)).
- Q:Distinction and distinction of cokeSoil coke, improved coke, coke machine coke do, what is the difference between
- 3, calcium carbide coke is conductive body and a heating body for electric arc furnace of coke in the production of calcium carbide. Calcium carbide with coke into the electric arc furnace, arc heat and heat resistance at high temperature (1800-2200 degrees Celsius) under the action of complex reaction and lime, calcium carbide formation in the molten state (carbide). The generation process of the following reaction type available:CaO+3C - CaC2+CO-46.52KLCalcium carbide with coke should have low ash, high reactivity and high resistivity and grain size. The secondary characteristics, but also try to remove the powder and reduce moisture. Its chemical composition and particle size should meet the following requirement: >84% <14% fixed carbon, ash, volatile <2.0%, sulfur
- Q:Standard grade two grade coke standard
- Evaluation of coke quality1, 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%. 11% of the sulfur from the blast furnace charge into the furnace comes from the ore, and the other comes from the limestone; the other is from the coke, so the coke is the main source of sulfur in the charge of the 82.5% of the charge. Sulfur content in coke directly affects the production of blast furnace. When the sulfur content in coke is greater than 1.6%, sulfur increased 0.1%, the amount of coke increased 1.8%, limestone amount increased 3.7%, 0.3% increase in amount of ore blast furnace output to reduce the sulfur content under 1.5 - 2.0%. metallurgical coke is not greater than 1%, the use of large and medium-sized metallurgical coke content in blast furnace is less than 0.4 - 0.7%.
- Q:The coke is divided into several separate uses
- Metallurgical coke is coke, coke, iron alloy coke and non-ferrous metal smelting coke ". Since more than 90% of metallurgical coke is used for blast furnace ironmaking, it is often referred to as coke. The metallurgical coke quality standard (GB/T1996-94) developed in China is the quality standard of blast furnace.
- Q:What's the difference between coke and coke?
- In the process of coal carbonization of coal material: when the temperature is higher than 100 degrees in coal water evaporation; the temperature rises to 200 degrees above, combined with the release of water in coal; up to 350 DEG C, caking coal begin to soften, and further the formation of colloid viscous (this phenomenon does not occur, peat lignite; etc.) to 400 ~ 500 degrees most of the gas and tar precipitation, called a thermal decomposition products; at 450 to 550 DEG C, the thermal decomposition continues, gradually thickening and curing the formation of residue char!
- Q:Coke is how to make it? What is the use?
- The production process has the following procedures:The preparation of coking coal is called coal preparation, which is prepared from various kinds of cleaned coal (or raw coal with low ash content), which is made up of coal, which has the advantages of high accuracy, good particle size, uniform quality and meeting the requirements of coking. Generally include: coal unloading, storage and mixing, mixing, crushing and mixing, and the preparation of coal to coke oven coal storage tower. In cold regions, there should be thawing and freezing equipment. To improve the quality of coke, we must pay enough attention to coal preparation. The coal blending is good, the accuracy of coal blending is improved, the fluctuation of coal quality is minimal, and the chemical composition and the physical mechanical property of the coke are ensured to stabilize the coke quality. Therefore, the coal blending equipment must be accurately according to the given value of coal blending; coal blending tank to be uniform continuous coal. In addition to the impurities in the coal, water can not be too high. The reasonable crushing of coal can effectively improve the mechanical strength of coke. According to the specific situation, the most suitable grinding particle size should be determined.
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Met coke / blast furnace coke
- Ref Price:
-
- Loading Port:
- Tianjin
- Payment Terms:
- TT OR LC
- Min Order Qty:
- 1000 m.t.
- Supply Capability:
- 100000 m.t./month
- Option:
- size
OKorder Service Pledge
OKorder Financial Service
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