含铁废料快速冷固成型固结机理及影响因素

针对转炉泥、除尘灰等含铁废料冷固成型固结速度慢,团块强度低的问题,采用自行开发的新型锈化剂进行压团试验,研究团块快速冷固成型固结机理及其影响因素。研究结果表明自行开发的新型锈化剂可加快团块的固结速度,提高团块的强度,在金属铁含量为5%、压团原料水分为10%、压团压力为300 kg/cm2的条件下自然养护24 h,团块的抗压强度可达2 000 N/P以上。

Fast concretion technology of cold-bond agglomeration for ferrous scrap

In order to deal with problems related to low speed and strength in cold-bond agglomerations of ferrous scrap(e.g.,converter mud,dust),a new rusting agent for agglomeration was proposed and studied. A fast concretion mechanism and factors influencing it were investigated.The results show that the rusting agent could increase the concretion speed and improve the agglomeration strength.When metal iron content is 5%,material moisture 10%,pressure 300 kg/cm2,and resting period 24 h,the strength of agglomeration reaches more than 2 000 N/P.