Metallurgical Coke(For the 2015 purchase season)
- 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
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1. Structure of Metallurgical Coke of Met Coke(For the 2015 purchase season) Description：
Coke reactivity and carbon dioxide, oxygen and water vapor on the ability of chemical reaction, CRI = (G0, G1 / G0 x 100% (note: coke G0 - test sample weight, g, G1 - coke after reaction sample weight, g).Coke after coke strength after reaction is refers to the response under the action of thermal stress and mechanical force and resistance to fracture and wear ability.Coke in the blast furnace ironmaking, casting iron and fixed bed gasification process, will react with carbon dioxide, oxygen and water vapor.Due to the reaction of coke with oxygen and water vapor and carbon dioxide reaction similar laws, so most countries use coke reaction with carbon dioxide features assess coke reactivity.China standard (GB/T4000-1996) provides for coke reactivity and strength after reaction test method.Its practices is to make coke at high temperature and the reaction of carbon dioxide, and then determining reaction after coke weightlessness rate and mechanical strength.
CRI and strength after reaction coke reactivity of CSR repeatability r shall not exceed the following values:
CRIr 2.4% or less
CSR: 3.2% or less
The coke reactivity and strength after reaction of the test results are shown parallel arithmetic mean of test results.
2. Main Features of the Metallurgical Coke of Met Coke(For the 2015 purchase season) ：
• Quality assurance
• Mutual benefit
• Preferential price
• Various choice
3. Metallurgical Coke of Metallurgical Coke(For the 2015 purchase season) Images:
4. Metallurgical Coke of Metallurgical Coke(For the 2015 purchase season) Specification:
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 | 7% max | > 9% |
M40 | 84% min | ＜82% |
CSR | 64% min | ＜62% |
CRI | 26% max | > 28% |
Size 30-90 mm | 90% min | |
+90 mm | 5% max | > 8% |
-30mm | 5% max | > 8% |
5. FAQ
What are coke's main physical properties?
on the relative density of density, coke, coke porosity, thermal conductivity for the heat capacity of coke, coke, coke, coke ignition temperature, coke thermal expansion coefficient of thermal stress and coke, coke shrinkage rate, coke resistivity permeability, etc.
The average heat capacity is 0.808 kj/(KGK) (100 ℃), 1.465 kj/(KGK) (1000 ℃)
Thermal conductivity is 2.64 kj/(MHK) (room temperature), 6.91 kj/(MHK) (900 ℃);
Ignition temperature (air) is 450-650 ℃.
- Q: Various types of coal coke are the main test items
- The basic instrument of coal laboratory of these conventional indicators required are: calorimetry, sulfur detection apparatus, muffle furnace (Gao Wenlu), or when the microcomputer controller temperature controller, drying oven (oven), instrument, glial layer measuring instrument, the ash melting point determination of caking index, in addition to auxiliary equipment: crusher, pulverizer, electronic balance, vibration sieve machine, two points etc.. The above is the coal test indicators by Hebi Huanuo coal testing equipment factory to provide, I hope to help you.
- Q: Coke is how to produce, what is its purpose?
- Coke is a color of deep gray to black solid, soft; internal structure of porous, and sometimes can be six square column.
- Q: What does Coke test index M25 mean?
- 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. The strength of coke is usually represented by two indices of crushing strength and abrasion resistance
- Q: What is the reasonable standard of volatile content of coke
- 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: What is the sample quantity of coke moisture test? What is the test time? How many degrees? That is the national standard.
- Three, instrument and equipment of drying box: with automatic temperature adjusting device, can maintain the temperature of 170 DEG C and 105 a 180 a 110 C, the tray is made from galvanized sheet iron or aluminium sheet, size is about 300mm x 200mm X 20mm. The glass weighing bottles: diameter 40mm, high 25mm, and a grinding cover tightly. Dryer: inside the color of silica gel or granular anhydrous calcium chloride
- Q: Said the details can add points ah
- Both are expressed in terms of the crushing strength of the cold mechanical strength index of coke quality.Among them, because of the specific measurement methods are not the same, so the use of different records.
- Q: Coke and coal is one thing
- How coal is formedCoal has been hailed as the black gold, the food industry, it is one of the main sources of energy used in the human world since eighteenth Century. Although its important position has been replaced by oil, but in the future for a long period of time, due to the exhaustion of petroleum, inevitable decline, but because of the huge reserves of coal, coupled with the rapid development of science and technology, the new technology of coal gasification is becoming more mature and widely used, coal will become one of the human production life cannot substitute energy.
- Q: 8 points will be isolated from the air to enhance the heat of coal, in addition to the main coke, but also the material listed in the following table: No.
- The structure of benzene and toluene is similar, and the molecular composition is different from that of a CH2 atom cluster, which is called homologous;(5) the number of chloro compounds in the hydrogen molecule is equal to the number of hydrogen atoms in different environments, and toluene has four kinds of hydrogen atoms in different environments: methyl group on the top, the benzene ring on the top of the 3 species, and so on, there are 4 kinds of chlorine compounds in toluene,
- Q: Coke crushing, coke plant equipment, coke jaw crusher, coke crushing equipment prices, manufacturers offer? How is the output of these equipments?
- It is a solid product of high temperature carbonization, the main component of which is carbon, which is a kind of crack and irregular pore structure.
- Q: What are the national standards for grade two coke?
- Two national standards for metallurgical coke: total sulfur: 0.61 - 0.80; ash: 12.01 - 13.50
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Metallurgical Coke(For the 2015 purchase season)
- Ref Price:
-
- Loading Port:
- Tianjin
- Payment Terms:
- TT OR LC
- Min Order Qty:
- 1000 m.t.
- Supply Capability:
- 100000 m.t./month
OKorder Service Pledge
OKorder Financial Service
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