Method and installation for the replacement of a granular material constituting the filtering element of the filling of a filter of a plant for the purification of gases

摘要

P & this process is characterized in that during the removal of dust of the material of the filter 4, the filtering layer of the compartment of the crude gases is directed intermittently, through a mechanical method, in the compartment of the filtering of the crude gases 15 which it is discharged by a specific evacuation opening 17, the material of the filter 4 thus evacuated is replaced by a material of the filtering provided by a supply tank 16, that, after several cycles of dust the whole of the material of the filter 4 is removed from the compartment 18 collector of the material 4 by a discharge opening 19, to the effect of which is produced, both during the various operations of removing dust that during the operation of emptying periodic, a counter - current of air directed in the opposite direction of flow of gas to be purified in order to avoid the penetration, by the channel of the filter dust in the compartment of the purified gas, that the material of the filter is regenerated in order to be drained again directed onto the purification apparatus to the effect of which the various operations of removing dust, emptying, regeneration and packing are carried out as a function of a program fully automated. / p