A high strength, waterproof. easy ignition boiler briquette was made in laboratory by using the Changzi meager coal as raw material and two complex binders at cool pressing briquetting.

• 以山西省长治市长子县贫煤为成型原料,采用冷压成型工艺,在试验室研制出具有高强、防水、易燃等优良特性的锅炉型煤,该型煤由2种复合粘结剂制成。