heat recovery rate in conventional grate coolers are approximately 50 to 60 %, When high temperature clinker is dropped on the grate of cooler from the 

The grate cooler is integral to heat recovery from the clinker, so grate coolers that operate with higher efficiencies will lead to less wasted heat and reduce fuel usage elsewhere in the process. The grate coolers offer two main advantages. First, they can have a large capacity allowing large kiln capacities. Second, they offer efficient heat recovery by lowering the emperature of the clinker

The grate is driven by cylinders placed on either side of the cooler. The hydraulic drives consist of axial piston pumps with electro hydraulic servo adjustment of the oil flow to the cylinders which have built in linear transducers. The system is controlled by a PLC .The pump units have built flow and its direction.

The cooler efficiency was found to be. (75.53%) at this stage of the clinker production process. This study revealed that the grate cooler 

The essential characteristic of a grate cooler is a layer of clinker spread on a more-or-less horizontal perforated grate, through which cold air is blown. The grate is made of steel, and the cold air keeps it sufficiently cool to avoid melting or burning.

the air into the grate cooler to reduce the temperature of the hot clinker leaving the kiln 1 . All these airflows have to be adjusted and controlled as.

ETA Cooler Grate Cooler Cooler Efficiency @ 0,85 Nm³/kg recuperation air 77,8 % 73,9 % Wear Grate plates 100 % in clinkerProtection Autogenous protection Due to pebble layer Heat Protection Safe due to higher clinker bed and pebble lane filling Direct contact between hot clinker and grate plate Stroke Length

Replacing worn grates or carrying out gap management on grate type coolers are time-consuming exercises and an on-going expense. In the Cross-Bar® cooler, clinker is moved through the cooler using horizontal bars that operate in a shuttle motion across a number of lanes. This effectively conveys, mixes and shears the

28/11/  · Clinker Cooler. The Air-Quenching shaking grate Clinker Cooler was developed more than 20 years ago as an improved heat recuperating cooler for use with rotary kilns. It was designed to air quench and cool large quantities of hot clinker rapidly, and to recover and return to the kiln a major portion of the heat from the clinker.

16/06/  · (PDF) Prediction of the Cement Grate Cooler Pressure in the Cooling Process Based on a Multi-Model Fusion Neural Network, Prediction of the Cement Grate Cooler Pressure in the Cooling Process Based

coming out of rotary kilns. Heat transfer in coolers indirectly controls the performance of the rotary kiln and is therefore crucial in a cement industry. In this report, we present a computational model to capture heat transfer in grate coolers. The schematic of grate cooler considered in the present study is shown in Figure 2.