With the development of large-scale aluminum reduction cell,higher quality and better property of cathode ramming paste are required.

A kind of new idea based on electromagnetic theory is presented, and it is used in research of the shaping law of electrochemical perforation with fixed cathode.

A new solid cathode,TiB 2 composite coating based on graphite has been invented Preliminary study indicates that the glutinous property between coating and graphite is nice,and the mechanical intensity of the coating is high The new cathode is expected to be used for lowering the distance between the two electrodes of three-layer aluminium electrolytic refinement and for saving electricity largel

The paper points out how to grasp the distillation of tamping coking technique from theoretical side and practical side, and introduces the influence of tamping and coking on coking process and coke quality.

The environmental protection characteristic of hot recovery tamping coke oven is analyzed from the aspect of pollutant produce tache, environmental protection measures, pollutant discharge quantity and technical economic etc .

This paper expounds the problems existing in tamping machines and the improvements of tamping and pushing schemes, and makes comparison of different schemes.

Reliability,continuous production,influence on coke oven life,energy consumption on heating and waste water treatment cost were investigated when comparing both stamping coking oven and top charge oven.