|
项 目 Item |
技术指标 Technical Indicators |
定 义 Definition |
|
煤的热值 Calorific Value kcal/kg coal |
5500-7000 |
Calorific value of coal |
|
粒度(mm) Granularity |
20～40 25～50 30～60 |
|
|
最大粒度与最小粒度之比 The rate between maximum and minimum granularity |
＜2 |
|
|
块煤限下率(%) Undersize fraction of block coal |
＜10 |
块煤限下率 Undersize fraction of block coal 筛上产品中小于规定中的粒度下限部分的质量百分数 Percentage of the product on the sieve which size is smaller that the stipulated minimum granularity. |
|
含矸率(%) Refuse content |
＜2 |
含矸率 Refuse content 煤中大于50mm矸石的质量百分数 Percentage of the refuse which granularity is over 50mm contained in the coal. |
|
干基挥发分Vd(%) Dry basis volatile matter Vd (%) |
＞20 |
挥发分 Volatile matter 煤样在规定条件下隔绝空气加热,并进行水分校正后的质量损失 The mass loss of the coal sample after heating by insulating the air and correcting the moisture under fixed condition. |
|
干基灰分Ad(%) Dry basis ash Ad (%) |
＜18 |
煤的灰分, Ash 是指煤完全燃烧后剩下的残渣. The slag after the coal completely burned. |
|
干基全硫分SLd(%) Dry basis total sulfur Std (%) |
＜2 |
全硫 Total sulfur 煤中无机硫和有机硫的总和 St Sum total of inorganic sulfur and organic sulfur the coal contains. |
|
灰熔融性软化温度ST(℃) Ash fusibility ST (℃) |
＞1250 |
灰渣融性 Ash fusibility 在规定条件下得到的随加热温度而变化的煤灰变形,软化和流动特征物理状态(灰熔点) Under fixed conditions, the coal ash changes its shape softened and floating with the heating temperature, these characteristics are named as ash fusibility (ash melting point). |
|
热稳定性TS+6(%) Thermal stability TS+6 (%) |
＞60 |
热稳定性 Thermal stability 一定粒度的煤样受热后保持规定粒度的性能 TS The performance of certain granularity coal to maintain the stipulation granularity after being heated. |
|
抗碎强度(＞25㎜) (%) Shatter strength (＞25mm) (%) |
＞60 |
抗碎强度 Shatter strength 一定粒度的煤样自由落下后抗破碎的能力(机械强度) The anti-stave ability of certain granularity coal sample after free dropping onto the ground (mechanical strength). |
|
罗加指数R.I Roga index R.I |
＜20 |
粘结指数 Caking index 在规定条件下以烟煤在加热后粘结专用无烟煤的能力表征烟煤粘结性的指标. 又称 G指, G.I.. The ability of bituminous coal bonding the special-purpose anthracite after heating under fixed condition. It is also named as G Index, G.I. 罗加指数 ROGA INDEX 由布.罗加提出的一种表征烟煤粘结无烟煤能力的指标 R.I. It is proposed by B. Roga, one kind of index that shows the ability of bituminous coal caking anthracite. R.I. |
|
自由膨胀系数F.S.I Free swelling index F.S.I |
＜2 |
自由膨胀指数 Free swelling index 以煤在坩埚中加热所得焦块膨胀程度的序号表征煤的膨胀性和粘结性的指标 CSN It is an index shows the coal dilatability and caking property by marking the bulging extent of coal during heating in the crucible. |
Technical Indicators of Coal for Two-stage Gasifier Gasification
Jan 16, 2024
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