US 2015/0274591 A1

Method for using the waste heat from a plant for producing ­cement and plant for producing cement

(22) 10.10.2013

(43) 01.10.2015

(57) A method for using waste heat from a cement producing plant, wherein heat of a process gas is used through a heat exchanger, which comprises a sequence of cyclones, for heating raw mix. A cement producing plant having at least one calcinator and at least one heat exchanger, which comprises a series of cyclones for heating raw mix. The process gas is removed at the outlet of the calcinator and/or the gas-side outlet of the first cyclone in the heat exchanger in the direction of gas flow and, once the heat has been removed in a steam vessel, the cooled process gas is fed back into the second cyclone or third cyclone in the heat exchanger in the direction of gas flow. The heat taken from the process can be used for the further heating of unrecovered heat which can thereby be more efficiently converted into electrical energy.

(71) KHD Humboldt Wedag GmbH, Köln (DE)

x

Related articles:

Issue 10/2010

Removing dust from process gases with optimized cyclone systems

1 Introduction On account of their simple design, limited space requirement, high operational reliability, as well as their low operating and investment costs, cyclones are used in almost all branches...

more
Issue 8/2023 CN116499260 (A)

Preheater system of cement clinker production line

(22) 21.04.2023 (43) 28.07.2023 (57) The invention discloses a cement clinker production line preheater system which comprises a plurality of stages of cyclones, connecting pipelines of the cyclones...

more
Issue 1-2/2018 WO 2017/167639 A1

System for producing cement clinker with a separated entrained-flow calcinator

(22) 23.03.2017 (43) 05.10.2017 (57) The invention relates to a system (100, 200) for producing cement clinker, having at least one rotary kiln (113) for sintering the cement clinker from...

more
Issue 8/2023 WO 2023/148258 A1

Method for operating a plant for producing cement clinker

(22) 02.02.2023 (43) 10.08.2023 (57) The invention relates to a method for operating a plant (100) for producing cement clinker, wherein the plant comprises as plant units (AG), in the direction of...

more
Issue 11/2019 KELVION GERMANY GMBH

Heat recovery for energy-efficient waste gas cleaning

A recuperative preheater is a gas-gas heat exchanger that extracts heat from a stream of hot waste gas and transfers it to the raw gas that is to be cleaned. During ongoing waste gas cleaning, the raw...

more