ONESTONE CONSULTING S.L.

Impact of clinker coolers on downstream equipment

Clinker coolers in today’s cement pyroprocessing lines are considered to be very reliable even under kiln upset conditions. But what is the interaction of the cooler with the upstream pyroprocessing under extreme conditions and how is the downstream equipment affected? In the following article the process will be analyzed and questions answered.

1 Introduction

Modern clinker coolers require 1.7 to 2.0 Nm³/kgcli. of fresh air to cool clinker with temperatures of more than 1400 °C from the rotary kiln to outlet temperatures below 100 °C. Such clinker coolers recuperate most of the thermal energy in the clinker to provide secondary air for the burning process and tertiary air for pre-calcination achieving thermal efficiencies of about 75 % and more. Clinker coolers are also required to buffer kiln fluctuations and have no or only a minor effect on the upstream pyroprocessing system which comprises pre-heater, pre-calciner, kiln and fuel...

Related articles:

Issue 2018-9 US 2018/0142955 A1

Clinker inlet distribution of a cement clinker cooler

(22) 14.12.2017 (43) 24.05.2018 (57) A clinker inlet distribution grate for feeding a conveyor grate with clinker, previously discharged from a kiln onto the clinker inlet distribution grate wherein...

more
Issue 2017-3 WO 2017/005612 A1

Clinker inlet distribution of a cement clinker cooler

(22) 30.06.2016 (43) 12.01.2017 (57) A clinker inlet distribution grate for feeding a conveyor grate with clinker previously discharged from a kiln onto the clinker inlet distribution grate wherein...

more
Issue 2015-7-8 EP 2 868 635 A1

Cement clinker cooler and method for cooling cement clinker

(22) 29.10.2013 (43) 06.05.2015 (57) White cement clinker can be ­efficiently produced using a kiln 10 for sintering cement clinker and ­unloading the cement clinker from the kiln 10 to a clinker...

more
Issue 2018-7-8 WO 2018/076403 A1

One-dimensional simulation method for predicting quality of clinker in rotary cement kiln

(22) 11.11.2016 (43) 03.05.2018 (57) A one-dimensional simulation method for predicting calcination quality of clinker in a rotary cement kiln, the method comprising: (1) acquiring relevant...

more
Issue 2019-12 WO 2019/166067 A1

Cooler

(22) 22.02.2019 (43) 06.09.2019 (57) The present invention relates to a cooler for cooling particulate material which has been subjected to heat treatment in an industrial kiln, such as a rotary kiln...

more