煤矿粉化用石灰岩标准规范
详细信息
- 中文主题词：煤矿 ; 白云石 ; 高钙石灰 ; 石灰岩 ; 石灰岩土 ; 矿井爆炸 ; 含水率 ; 二氧化硅含量
- 标准号：ASTM C737-2013
- 发布日期：2013
- 英文题名：Standard Specification for Limestone for Dusting of Coal Mines
- 英文主题词：coal mines ; dolomitic limestone ; high calcium limestone ; limestone ; limestone dust ; mine explosions ; moisture content ; silica content
- 标准状态：现行
- 发布单位：US-ASTM
- 国际标准分类号：73.080 (Non-metalliferrous minerals)
- 载体形态：2P.;A4
- 中国标准分类号：D21
- 国别：美国材料与试验协会
文摘
1.1x00a0;This specification covers limestone suitable for use as dust in coal mines to reduce risk of coal dust explosions.
Note 1x2014;Limestone can serve as a source of incombustible material in coal mine operations. Limestone is dusted onto coal exposures in sufficient amount so that not less than 658201;% of all loose dust shall be limestone incombustible material. In return air courses the concentration of incombustible materials should be not less than 808201;% of the total dust (MSHA 30 CFR 75.403). With such a concentration of limestone incombustible material, dust explosions cannot initiate or be propagated from nearby gas explosions. The limestone must be substantially dry in order to dust satisfactorily.
1.2x00a0;This standard does not purport to address all of the safety concerns, if any, associated with its use. It is the responsibility of the user of this standard to establish appropriate safety and health practices and determine the applicability of regulatory limitations prior to use.
1.3x00a0;The values stated in inch-pound units are to be regarded as standard. No other units of measurement are included in this standard.
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