This paper fully introduces the technical optimization and application status of shaft lime kiln with mixing fuel,chiefly analyses the prospect technical optimization and innovation and points out the importances of operation specification and reformation,and furture proposes that environmental protection is social responsibility and survival red lines of all companies.

This paper introduces the structure design, installation position, masonry method and effect of expanded application of the permeable bricks used in rotary type anode furnace.The integral optimization design, carefully masonry and maintenance on site not only improve the copper liquid quality,but also uniform copper liquid temperature and compositions,increase the heating rate of copper liquid and throughput of cold charge and shorten the copper time.

Due to the pollution problem of Cr6+ in magnesia chrome bricks, magnesia chrome bricks are replaced by magnesia spinel bricks in cement kiln and lime kiln. Magnesia spinel refractories are prepared with different additions and types of magnesia spinel, by rational introducing α-Al2O3 and utilizing the combination of magnesia aggregates and magnesia spinel aggregates with magnesia matrix, which have good thermal shock resistance and can buffer thermal stress and improve slag penetration resistance.

This paper analyzed and concluded that the causes of low CaO content in soft burned lime are the reaction process of limestone and loss on ignition.Also,it proposed promising measures for improvement which turned out to be satisfactory in operation.

This paper demonstrated the operational situation of first generation 600t·d-1Maerz lime kiln located at Lingyuan Iron and Steel Co.,Ltd.and analyzed factors affecting its service life comprehensively,providing a firm base to optimize the operation and prolong its service life.

This paper introduces the effects of physical and chemical properties, fuel components and control of kiln processing parameters of the lime stone on production of high quality metallurgical lime with Mazer kiln. Then it proposes the control requirements of lime stone, fuel, kind of process parameters such as calcination temperature, air distribution coefficient and heat, as well as storage and transportation of metallurgical lime.

The utilization of suspension method to produce active lime by using tailing of oil shale,can not only make the waste profitable and bring economic profit,but also realize no solid waste discharged for and environment protection.