JPS56150355A - Method for evaluation of low grade coal as coke raw material for blast furnace - Google Patents
Method for evaluation of low grade coal as coke raw material for blast furnaceInfo
- Publication number
- JPS56150355A JPS56150355A JP5280680A JP5280680A JPS56150355A JP S56150355 A JPS56150355 A JP S56150355A JP 5280680 A JP5280680 A JP 5280680A JP 5280680 A JP5280680 A JP 5280680A JP S56150355 A JPS56150355 A JP S56150355A
- Authority
- JP
- Japan
- Prior art keywords
- coke
- reaction
- low grade
- grade coal
- strength values
- Prior art date
- Legal status (The legal status is an assumption and is not a legal conclusion. Google has not performed a legal analysis and makes no representation as to the accuracy of the status listed.)
- Granted
Links
- 239000000571 coke Substances 0.000 title abstract 6
- 239000003245 coal Substances 0.000 title abstract 4
- 238000011156 evaluation Methods 0.000 title abstract 2
- 238000000034 method Methods 0.000 title abstract 2
- 239000002994 raw material Substances 0.000 title abstract 2
- 238000007664 blowing Methods 0.000 abstract 2
- 230000035484 reaction time Effects 0.000 abstract 2
- 239000012530 fluid Substances 0.000 abstract 1
Classifications
-
- G—PHYSICS
- G01—MEASURING; TESTING
- G01N—INVESTIGATING OR ANALYSING MATERIALS BY DETERMINING THEIR CHEMICAL OR PHYSICAL PROPERTIES
- G01N33/00—Investigating or analysing materials by specific methods not covered by groups G01N1/00 - G01N31/00
- G01N33/22—Fuels; Explosives
- G01N33/222—Solid fuels, e.g. coal
Landscapes
- Health & Medical Sciences (AREA)
- Life Sciences & Earth Sciences (AREA)
- Chemical & Material Sciences (AREA)
- Engineering & Computer Science (AREA)
- Food Science & Technology (AREA)
- Medicinal Chemistry (AREA)
- Physics & Mathematics (AREA)
- Analytical Chemistry (AREA)
- Biochemistry (AREA)
- General Health & Medical Sciences (AREA)
- General Physics & Mathematics (AREA)
- Immunology (AREA)
- Pathology (AREA)
- Coke Industry (AREA)
- Solid Fuels And Fuel-Associated Substances (AREA)
Abstract
PURPOSE:To perform independent evaluation of low grade coal per se by evaluating the quality of coke from the strength difference of the gasified coke determined by changing gasifying reaction time while blowing gaseous CO2 to coke grains. CONSTITUTION:Low grade coal is heat-treated by a method resembling to that for production of coke for blast furnaces, after which it is ground and grain components 1-2mm. are sieved and are used as test sample. This test sample is caused to react for a fixed time by blowing gaseous CO2 from the lower part at the velocity at which the fluid condition of the sample is produced, in a vertical reaction tube which is maintained at a constant temp. of 1,050 deg.C atmosphere temp. Further, the strengths with the respective gasified samples of different rates of reaction obtained by changing the reaction time are measured. The strength values corresponding to 10% and 25% rates of reaction are accurately read from the straight line obtained by plotting the respective strength values obtained at this time on a drawing with respect to the corresponding rates of reation, and the difference in the strength values of both is taken as an index to indicate the hot characteristics as coal for coke raw material
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| JP5280680A JPS56150355A (en) | 1980-04-23 | 1980-04-23 | Method for evaluation of low grade coal as coke raw material for blast furnace |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| JP5280680A JPS56150355A (en) | 1980-04-23 | 1980-04-23 | Method for evaluation of low grade coal as coke raw material for blast furnace |
Publications (2)
| Publication Number | Publication Date |
|---|---|
| JPS56150355A true JPS56150355A (en) | 1981-11-20 |
| JPH0117107B2 JPH0117107B2 (en) | 1989-03-29 |
Family
ID=12925081
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| JP5280680A Granted JPS56150355A (en) | 1980-04-23 | 1980-04-23 | Method for evaluation of low grade coal as coke raw material for blast furnace |
Country Status (1)
| Country | Link |
|---|---|
| JP (1) | JPS56150355A (en) |
Cited By (1)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| KR20170074271A (en) * | 2015-12-21 | 2017-06-30 | 주식회사 포스코 | Coke for melter-gasifier and method for manufacturing thereof |
-
1980
- 1980-04-23 JP JP5280680A patent/JPS56150355A/en active Granted
Cited By (1)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| KR20170074271A (en) * | 2015-12-21 | 2017-06-30 | 주식회사 포스코 | Coke for melter-gasifier and method for manufacturing thereof |
Also Published As
| Publication number | Publication date |
|---|---|
| JPH0117107B2 (en) | 1989-03-29 |
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