煤炭是工业的粮食,随着我国工农业生产的发展,需要量越来越大。我厂位于苏北地区,运输不便,长期以来,因煤炭不能及时满足供应,常常造成停产。为了能够按时完成国家下达的磨具生产任务,我们购来200多吨杂石多、含炭量低的劣质煤。这种煤能不能烧窑呢?开始由于认识不足,第一窑次烧成时间长达93个小时,耗煤量18吨,比正常烧窑时间长,多牦煤9吨左右。 Coal is the food of industry. With the development of industrial and agricultural production in our country, the demand is increasing. Our factory is located in the northern part of Jiangsu and it is inconvenient to transport. For a long time, due to the inability of coal to meet supply in time, production is often suspended. In order to be able to complete the production of grinding tools issued by the state on time, we purchased more than 200 tons of low-grade coal with low carbon content. This coal can not kiln it? Because of lack of understanding, the first kiln firing time of up to 93 hours, 18 tons of coal consumption, longer than normal kiln time, more than 9 tons of coal.