辽宁省凌源县乡镇企业管理局,利用含焦油率5—7％,热值900—1000千卡/公斤的低品位、低热值油页岩烧制成砖。为节约烧砖用煤,开辟了新的燃料途径。凌源县乡镇企业的红砖行业,几年来发展很快,但由于当地煤炭资源不足,多数都是依靠外地调入。 Lingyuan County, Liaoning Province, township enterprises Authority, the use of tar-containing 5-7%, the calorific value of 900-1000 kcal / kg of low-grade, low calorific value oil shale fired into bricks. In order to save burned brick coal, has opened up a new fuel route. The red brick industry of township and town enterprises in Lingyuan County has developed rapidly in recent years. However, due to the shortage of local coal resources, most of them rely on the transfer from other places.