Wuhan Institute of Building Materials general contracting of Hubei Yadong Cement Co., Ltd. # 1 # 2 kiln end flue gas in the low temperature SCR denitrification system in the original site is compact, the transformation of space is very restricted, Wuhan Institute of Building Materials through three-dimensional modeling to restore the original appearance of the plant, simulation and smooth optimization of the design, and ultimately the use of the two sets of denitrification system common framework of the arrangement of the pillars, from the vertical pipeline to take the wind, the wind back and the first long and narrow denitrification tower tower and the first set of 4 rake rod soot blowing system.