OTTO-VON-GUERICKE UNIVERSITY MAGDEBURG/GERMANY

Energy consumption and CO2 content in the flue gas of normal shaft kilns | Part 1: Influence of the air excess number

Balances were used to determine the effect of the contents of CaCO3, MgCO3, water and inert matter in limestone, the air excess number, the kiln wall losses and the residual CO2 content on energy consumption and CO2 content in the flue gas.

1 Introduction

The so-called multi-fuel-fired normal shaft kiln (NSK) is one of the oldest types of lime shaft kiln, in which burnt lime is produced from limestone by expelling the carbon dioxide gas. This type of kiln is fired with lumpy solid fuels. Due to this mode of firing, operation of the kiln has special characteristics that result in complex process technology. This kiln type is used in the lime industry in order to manufacture so-called medium to hard-burnt lime. It is also the main type of kiln to be found in the sugar and soda industries, only with the difference that two products...

Related articles:

Issue 2014-12 OTTO-VON-GUERICKE-UNIVERSITÄT MAGDEBURG/GERMANY

Energy consumption and CO2 content in the flue gas of normal shaft kilns: Part 2: Influence of the limestone quality and the process parameters

1 Influence of the CO concentration in the flue gas The lime shaft kiln is used in the lime industry in order to produce so-called medium to hard-burnt lime. This type of kiln is also used in the...

more
Issue 2015-10 OTTO VON GUERICKE UNIVERSITY MAGDEBURG

Simulation of limestone calcination in ­normal shaft kilns – Part 2: Influence of process parameters

1 Introduction The calcination of limestone in normal shaft kilns is a complex process, since it is influenced by a variety of parameters. These influencing factors are: the operating variables such...

more
Issue 2016-5 EESAC SAS DUINGT/FRANCE

Understanding the process conditions in a parallel flow regenerative kiln

1 Initial status The first step of the study consisted in establishing a global heat and mass balance of the kiln. The energy balance is summarized in Table 1. The energy balance actually highlighted...

more
Issue 2012-02

Second lime kiln for Karadeniz

Karadeniz Madencilik San. ve Tic. Ltd. S¸ti., domiciled in Istan­bul, Turkey, placed an order with Maerz for the supply of engineering, license, know-how and equipment as well as technical...

more
Issue 2017-10 PL1957423 (T3)

Method and apparatus for treating lime mud

(22) 21.11.2006 (43) 30.06.2017 (57) Summary of corresponding patent WO2007057512 (A2): A method for feeding lime mud into a lime kiln including a rotary kiln shell having an interior between a first...

more