US 4,147,503 A · Grid cooler, particularly feed step grid cooler

Abstract

A grid cooler for cooling hot material such as cement clinker issuing from a rotating cement kiln including a generally horizontal movable cooling grid with stationary elements and horizontally and vertically movable elements, housing enclosing the grid with an inlet chamber extending over the kiln, sidewalls on the housing and vertically adjustable brackets on the sidewalls with cross shafts and vertical support pedestals on the cross shafts with the pedestal for the movable grid including an inclined cam arrangement, and a drive for the movable grid with pivotal support arms supporting the discharge end of the grid about an axis substantially coincident with the plane of the grid so that the angle of inclination of the grid may be adjusted by swinging the receiving end of the grid up and down and the grid pivoting about its discharge end.

Claims15

Dependent claims

A grid cooler for cooling hot material such as cement clinker issuing from a rotary kiln comprising in combination:

a generally horizontal movable cooling grid having an upper support surface and having openings for the upward passage of air through material flowing across the grid on said support surface from a receiving end to a discharge end and being inclined downwardly from the receiving to the discharge end;
and means for changing the angle of inclination from the receiving to the discharge end so that variations in material and temperatures may be compensated for in increasing or decreasing movement of material on the grid.

In a rotary cement processing kiln having a cement clinker discharge kiln end, a grid cooler for cooling material coming from the kiln comprising:

a generally horizontal movable cooling grid with stationary elements and relatively movable elements for the movement of material across the grid with said grid positioned beneath the discharge of a rotary kiln and having a receiving end and a discharge end;
means for driving the movable elements in movement relative to the stationary elements;
a housing for the grid having an inlet chamber extending to enclose the discharge end of the kiln and having sidewalls;
support members on the sidewalls for supporting the receiving end and the discharge end of the grid with said support members being vertically adjustable on the sidewalls;
first and second means on the support members respectively supporting the stationary elements and the movable elements of the grid;
a support arm secured to the support members and connected to the discharge end of the grid mounting it for pivotal adjustable movement about an axis coincident with the plane of flow of material across the grid and the discharge end of the grid so that the angle of inclination of the grid may be adjusted by elevating or lowering the receiving end about said axis.

3 more elements

Dependencies are inferred from the claim text.

Grid cooler, particularly feed step grid cooler

Life of this patent

Grid cooler, particularly feed step grid cooler

Life of this patent

Abstract

Claims15