本发明公开了一种无黏结剂干燥炼焦煤的成型方法,属于炼焦技术领域.入炉煤经干燥,筛分处理后,所得粒度在0.5mm以下,水分控制在0.2%以下的干燥煤粉在对辊成型机中挤压成型,控制对辊成型机的线压力为10～20tf/cm,得到型煤的成型率在90%以上,且型煤抗压强度200N以上,落下强度≥56%,产品质量较好,其中型煤抗压强度测定按照MT/T7482007规定的工业型煤冷压强度的测定方法,型煤落下强度按工业型煤MT/T9252004落下强度测定方法.本发明设计的成型方法在不使用黏结剂的情况下,保证整个成型过程顺利推行,同时,煤粉的成型率较高,型煤的质量也较好,其作为一种较好的炼焦煤预处理技术在实际生产中具备较好的应用价值。

The invention discloses a forming method for drying coking coal without binder, which belongs to the technical field of coking. After drying and screening the coal into the furnace, the dry pulverized coal with particle size less than 0.5mm and moisture controlled less than 0.2% is extruded in the counter roll forming machine, the linear pressure of the counter roll forming machine is controlled to be 10 ~ 20tf / cm, the forming rate of briquette is more than 90%, and the compressive strength of briquette is more than 200N, The falling strength is ≥ 56%, and the product quality is good. The compressive strength of briquette is measured according to the method for measuring the cold compressive strength of industrial briquette specified in MT / t7482007, and the falling strength of briquette is measured according to the method for measuring the falling strength of industrial briquette MT / t9252004. The molding method designed by the invention ensures the smooth implementation of the whole molding process without using binder, and the molding rate of pulverized coal is high, The quality of briquette is also good. As a better coking coal pretreatment technology, briquette has good application value in practical production.