World Cement - July 2020

the annexation of Crimea, the country’s economy

has become more self-reliant than most. Indeed,

The Economist

claims that: “The Russian economy

is less sensitive to the shock because it has

already been self-isolating for the past six years.”

That’s not to say that Russia will emerge from the

pandemic unscathed; the IMF predicts that Russia

will undergo a 5.5% contraction in GDP this year,

which will likely result in the country’s National

Wealth Fund of US$150 billion being used up

much more quickly than expected.

Project round up

Austria

Gmundner Zement, Rohrdorfer Zement

Due to operational problems, a new calciner

burner for the firing of liquid waste fuel was

required at the Gmundner Zement plant.

Unitherm supplied one UNICAL-SO-X-4000

with a thermal capacity of 37 MW. Additional

equipment included a UNIGRESS waste oil lance

with pneumatic retraction as well as electric

equipment.

Schretter & Cie

Köppern will supplied a brand new cement

grinding plant, with a capacity of 50 tph of special

cement types produced by Schretter & Cie, on an

EPS basis.

The semi-finish grinding system consists of

a closed grinding circuit including a HPGR

92/12,4-670, a ball mill 3 x 7.75 m and the

combined Köppern separator KOESEP

1850 – 2S, as well as material handling and

dedusting equipment. This new cement grinding

plant will be modern, economical and flexible.

The plant will start operations in July 2020.

Azerbaijan

Gazakh cement plant, LLC

Dal Teknik Makina carried out the Gazakh cement

plant upgrade project to increase the clinker

production capacity from 2500 tpd to 3300 tpd.

The supply of equipment was completed in

six months and the kiln shut-down period was

five weeks. Despite the obstacles caused by

the pandemic, clinker production and raw mill

capacity limits were reached and the project

was successfully completed with only DTM

supervisors at the project site.

In general, the scope of the capacity upgrade

project was basic, with detailed engineering,

procurement, commissioning and supervising;

involving the three units:

Raw mill unit.

Kiln de-dusting unit.

Pyro process unit.

The first part of the upgrade project was

the retrofit of the raw mill unit. A static drying

separator was placed in front of the raw mill to

dry clay and limestone. Equipment which was

replaced in the raw mill unit included the dynamic

separator, ball charge modification, all parts of

separator cyclones and raw mill fan. Hence,

the raw mill grinding capacity was upgraded

by drying the raw materials and enhancing the

separation efficiency.

The next part consisted of replacing the

raw mill/kiln bag filter and filter fan to reach the

desired upgraded capacity.

Then followed the modification of the

pyro process unit. In order to reach a 3300 tpd

capacity, the changed equipment included the

first three stage cyclones with the modification of

the Calciner-TAD connection, and 6 splash boxes

were installed.

Belgium

Ertvelde, Cemminerals NV

Gebr. Pfeiffer received an order from the Belgian

enterprise Cemminerals NV for the supply of

a grinding plant for slagcements and CEM I.

The plant, which has a Pfeiffer vertical roller mill

of the type MVR 5300 C-6 installed, was set up in

Flanders, Belgium.

The mill is rated to achieve capacities of

136 tph of CEM III/A, ground to 4850 cm²/g acc.

to Blaine, and of up to 146 tph CEM I, ground to

a fineness of 4700 cm²/g acc. to Blaine. The mill

main drive is designed for an installed power of

4600 kW, and the SLS 4750 BC high-efficiency

classifier, mounted on top of the MVR mill,

enables high material fineness degrees of up to

5300 cm²/g acc. to Blaine. The mill has been in

operation since June 2019.

Geocycle facility

Geocycle produces a special mixture made from

woodchip, waste oils, waste lubricants and old

tissues, shredded altogether in order to make a

derived fuel which is used as alternative fuel to

the traditional coal, which was previously widely

used in the cement industry.

Despite the advantages of this new type of fuel,

transportation of such material requires special

characteristics from the conveyor. The conveyor

has to offer many safety features and among them

is a sealing guarantee to avoid material being

blown away or spilled.

Standard Industrie’s Liftube meets this

requirements thanks to its hood and overlap that

both enclose the Liftube glideboard.

The whole system encapsulates the belt,

making it airtight and safe for the operators.

World Review 2020

World Cement