World Cement - July 2020

91 / 108

openings at the top of the silo were made by the
customer.
The storage area of the cleaned silo has
therefore been optimised.
This project has received positive
feedback within the group. The site of
HOLCIM ECLEPENS, also located in
Switzerland, heard about the project and
requested an intervention for the cleaning of
a similar silo. The cleaning of the cement silos
carried out in the summer will enable Holcim to
increase its storage capacity and meet demand,
despite the kiln shutdown scheduled for winter
maintenance.
United Kingdom
Dunbar Cement, CRH
CEMENGAL supplied Dunbar Cement with
1 Vertical Mill unit with a production capacity of
450 000 tpy: VRM OK-37.3 and 1300 kW installed
power at mill shaft.
The scope of supply includes retrofitting of
the existing feeding infrastructure as well as the
cement pneumatic transport into the existing
storage silos.
Eversley concrete plant, CEMEX UK
The new, modern, upgraded plant is a LIEBHERR
2.25 mobile mix plant and increases the output
capacity to serve both large contracts and the
local market.
The inclusion of a central mixer also enables
special products, such as traditional sand
cement screed, and flowing screeds (like
Supaflo), to be produced, increasing the
product range available.
As the plant is sited directly in the quarry,
materials will no longer have to be transported
from Bramshill to Eversley by truck, decreasing
the number of trucks on local roads and offering
substantial ecological advantages. With only
cement now needing to be brought in, it is
believed that this will equate to 10 lorries/day less
on the road.
The plant will have a storage capacity
of 300 t of cement, and 240 t of aggregates.
CEMEX will now be able to increase production
from 24 m3/h at the existing Eversley plant, to
80 m3/h. Using a wet batch plant will also ensure
a better quality and strength of mix.
Hope Cement, Breedon Group
To increase the effective primary air momentum,
the existing M.A.S. burner at the plant was
modified by Unitherm to the latest M.A.S. disc
technology design at the Hope plant.
Additionally, a new primary air fan was delivered
to increase the pressure to the burner.
Rugby plant, CEMEX UK
To increase the efficiency as well as the
substitution rate of the kiln burner, CEMEX UK
awarded Unitherm with the supply of a new
rotary kiln burner and auxiliaries. The 76 MW
M.A.S./7/KO.SO.X for the combined firing of
coal, fuel oil and secondary fuel is equipped
with one channel DN 175 (7 in.). Additionally, a
satellite burner DN 175 (7 in.) is located above
the main burner. The scope of supply included a
burner trolley for both burners, a new primary air
fan, oil lance, ignition burner and flame monitoring
system.
Uzbekistan
Bekabadcement
Bekabadcement, the oldest cement plant in
Uzbekistan, continues to be a pioneer among
cement manufacturers and will be the first
cement plant in Uzbekistan that introduces
the high energy efficient HPGR technology
together with an combined two-stage separator
in its brand new cement grinding unit with a
total capacity of 100 tph. Köppern delivered
one HPGR 630/13, 5-1100 and one combined
two-stage separator KOESEP 2600 - 2S. The
plant will start operations towards end of summer
2020.
Jizzakh Cement plant, Jizzakh Cement
Unitherm was awarded the contract to supply a
new rotary kiln burner for DAL Engineering for
the Jizzakh Cement plant. The M.A.S. burner
with a thermal output of 15 MW is designed for
the combined firing of coal, natural gas and solid
secondary fuels.
Kaerxi Conch Cement
Fives has supplied a PILLARD NOVAFLAM KILN
burner.
Kuvasai Cement
Unitherm was awarded the delivery of a new
rotary kiln burner for M.A.S./4 for
Kuvasai Cement in Uzbekistan. The burner with
a maximum thermal output of 56 MW will be
designed for coal and natural gas firing.
Additional equipment includes a new primary air
fan as well as anchors and lining material.
Zafarabad, Huaxin Cement
For a new 1200 tpd plant in Uzbekistan, Unitherm
Cemcon was awarded a contract to deliver the
new burners and equipment. Beside one rotary
kiln burner M.A.S./6 for coal dust and
natural gas and two calciner burners for natural
gas, the scope of supply also included two gas
valve trains and burner auxiliaries.
89 World Review 2020 World Cement