螺旋装煤对堆密度的影响及改进措施

THE INFLUENCE OF THE SPIRAL COAL LOADING TO BULK DENSITY AND THE IMPROVEMENT MEASURE

螺旋装煤是借助于机械装置将煤均匀、定时、定量地装入炭化室,螺旋装煤在装煤过程存在高转速与低转速的差别。在螺旋装煤后期平煤低转速运行时,将使上部煤料的堆密度减小,高向堆密度差值达到103 kg/m3。提高低转速条件下的下煤量,有利于上部煤料的密实,减轻结焦末期收缩。对降低炉顶空间温度,改善炭化室顶部石墨生产有积极作用。

The spiral coal loading is to ask for help from the machinery to spiral coal loading is even and settles,meteredly into the turns the room,the spiral coal loading at pack the coal process exist high turn soon with low turn soon of difference,at the helix expects the even coal after pack the coal low turn to circulate soon,will make a density that the upper part coal anticipate let up,high attain the 103 kg/ m3 toward a value with bad density.Raise low turn soon under condition of next the coal quantity,be advantageous to the that the upper part coal anticipate solid,ease the knot burnt last phase constringency.Improve the to turn the room coping graphite to produce to have the positive effect towards lowering a heat of space temperature.