The cement pressing-in under the bottom plate is to fill up the gap of carbon ramming mass layers between the bottom plate and I-beam, in order to prevent the forming of air heat insulating layer and to improve the heat transfer effect in furnace bottom.

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

Carbon paste of factors analysis and class allocation and the use of temperature control;

Aim at making clear the impact compaction process of carbon paste, a discrete element method equation for describing the process of paste dynamical compaction is established on the basis of the particle movement law and dense packing mechanism.

Taking aim at the deficiency of research on the impact compaction process of viscous carbon paste,a discrete element method(DEM) equation of the paste dynamical compaction is established on the basis of the particle movement law and dense packing mechanism.

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.