新型耐火材料的应用对水泥行业节能减排的影响

Influence of Application of New Refractory Materials on Energy Conservation and Emission Reduction in Cement Industry

以一种新型耐火材料(轻量化超低导热莫来石砖)为研究对象,对其在某Φ4 m×60 m水泥回转窑分解带上的应用进行减排效益和经济效益分析。结果表明,相比于传统耐火材料,在水泥回转窑分解带上采用轻量化超低导热莫来石砖后,年可节省标煤约1336 t,节电约48万kW·h,直接或间接减少CO_(2)排放约3920.96 t/a、SO_(2)约11.36 t/a、NO_(x)约9.89 t/a,节能减排效果明显;同时,还可降低耐材的使用量,减少筒体荷载,进而延长回转窑使用寿命,综合经济效益较为可观。故该新型耐火材料的应用符合水泥行业“双碳、双减”政策,是水泥行业节能减排的有效途径之一。

A new type of refractory(lightweight ultra-low thermal conductivity mullite brick)was taken as the research object,the emission reduction benefit and economic benefit of its application on the calcination zone ofΦ4 m×60 m cement rotary kiln were analyzed.The results show that compared with traditional refractory materials,after using lightweight ultra-low thermal conductivity mullite bricks in the calcination zone of cement rotary kiln,it can save about 1336 t of standard coal and480000 kW·h of electricity annually,directly or indirectly reduce about 3920.96 t/a of carbon dioxide emissions,11.36 t/a of sulfur dioxide,and 9.89 t/a of nitrogen oxides,with obvious energy-saving and emission reduction effects;At the same time,it can also reduce the use of refractory materials,reduce the cylinder load,and thus extend the service life of the rotary kiln,with considerable comprehensive economic benefits.Therefore,the application of this new refractory conforms to the policy of"double carbon、double reduction"in the cement industry,and is one of the effective ways to save energy and reduce emissions in the cement industry.