US 5,433,157 A · Grate plate for thrust grating coolers for cooling hot material

Abstract

In order to create a grate plate design for a thrust grating cooler for cooling hot material such as, for example, cement clinker, this grate plate design has troughs at its upper side for accepting and retaining cool material for the purpose of protecting the grate plate against thermal overload, whereby these troughs are to be supplied with cooling air via cooling air channels arranged therebetween and via air exit slots without the risk of blockage thereof. A grate plate is provided wherein a plurality of cooling air channels that extend up to the upper side of the grate plates and limit the troughs from one another are arranged in the grate plate member parallel to the longitudinal axis of the grate plates, and whereby the partitions between the air channels and the troughs comprise air exit slots proceeding parallel to the longitudinal axis of the plates which are arranged immediately above the bottom plate of the grate plate.

Claims20

Dependent claims

A grate plate for thrust grating coolers for cooling hot material, the thrust grating cooler having a material inlet, a material outlet, and a plurality of rows of grate plates, with each preceding row of plates overlapping a portion of the following row of plates, said grate plate having upwardly open troughs for receiving the hot material arranged at an upper side of the grate plate, comprising:

a plurality of cooling air channels, formed by inverted u-shaped partitions that have side walls which extend up to an upper side of the grate plates and limit the troughs from one another, are arranged in the grate plate member parallel to a longitudinal axis of the grate plate;
and the walls of the partitions between the air channels and the troughs have air exit slots proceeding parallel to the longitudinal axis of the plates, the slots being positioned directly above a bottom plate of the grate plate to admit air into the troughs.

A thrust grating cooler for cooling hot material, the thrust grating cooler having a material inlet, a material outlet, and a plurality of rows of grate plates, with each preceding row of plates overlapping a portion of the following row of plates, comprising:

a plurality of grate plate carriers arranged in a conveying direction, with alternate ones of said carriers mounted in a stationary position and opposite alternate carriers mounted to be reciprocally movable in said conveying direction;
a plurality of grate plate members having a top wall and a bottom wall, one of said grate plate members being secured to each of said grate plate carriers such that said bottom wall protrudes from a front of said grate plate carrier in said conveying direction;
a plurality of open troughs arranged at an upper side of each of said grate plate members, said troughs extending along a longitudinal axis parallel to said conveying direction;
a plurality of cooling air channels formed within each of said grate plate members in the form of inverted u-shape channels which extend vertically between said top wall and said bottom wall of said grate plate member and which have vertical side walls extending longitudinally, defining said troughs;
said vertical side walls having air exit slots along their length adjacent to said bottom plate of said grate plate member, said air exit slots providing a communication path between said cooling air channels and said troughs.

2 more elements

Dependencies are inferred from the claim text.

Grate plate for thrust grating coolers for cooling hot material

Life of this patent

Grate plate for thrust grating coolers for cooling hot material

Life of this patent

Abstract

Claims20