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CFS Silo

The CFS Controlled Flow Storage silo provides highly reliable extraction of cement and related products with low air and power consumption. It continuously supplies material to the silo using an elevator or lifting device. The silo bottom is divided into six segments that are individually aerated for 5 minutes each to extract material while keeping most of the contents in motion. Filters in the aeration system prevent material from entering the air lines. This reliable design improves quality and profits for cement producers.

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Yhane
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311 views4 pages

CFS Silo

The CFS Controlled Flow Storage silo provides highly reliable extraction of cement and related products with low air and power consumption. It continuously supplies material to the silo using an elevator or lifting device. The silo bottom is divided into six segments that are individually aerated for 5 minutes each to extract material while keeping most of the contents in motion. Filters in the aeration system prevent material from entering the air lines. This reliable design improves quality and profits for cement producers.

Uploaded by

Yhane
Copyright
© © All Rights Reserved
We take content rights seriously. If you suspect this is your content, claim it here.
Available Formats
Download as PDF, TXT or read online on Scribd
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CFS Controlled Flow Storage silo

Highly reliable extraction


Low air and specific power consumption
Main features
Improves quality and Description
Only 1/6 of the silo bottom profit Silo diameters ranging from 10
area is aerated at the same FLS has developed the CFS to 20 m are available based on
time storage silo for cement and the same configuration.
related products based on
Continuously operating experience gained with the CF The material is supplied
storage silo (Controlled Flow) raw meal continuously to the silo either by
blending and storage silo. an elevator or by an air
controlled lifting device. The top
Controlled flow
The keyword in the design of deck of the silo is provided with
the CFS storage silo is reliability. all the standard features such
Low maintenance costs
The challenge facing the as manholes, over- and
designer of a storage silo is to underpressure valve, and level
ensure that the silo empties indicators.
100%, while keeping the
specific power consumption for The raised bottom of the silo
aeration at a minimum. The CFS has one centrally positioned
meets the challenge in the outlet covered by a steel cone.
following way: This cone has two functions:

- The specific power - To relieve the pressure above


consumption is kept low by the outlet.
aerating the silo bottom sector
by sector. - To ensure that a large part of
the silo contents is kept in
- A large part of the silo motion during the extraction.
contents is kept in motion during
extraction due to the steel cone The silo bottom is divided into
covering the outlet. six triangular segments sloping
15 degrees towards the outlet.
- Build-up of material close to Each of the segments is fitted
the silo wall is prevented by with aeration boxes. One
filling the corner between the segment at a time is aerated for
silo bottom and the silo wall with approximately 5 minutes. The air
coarse concrete to form an supply system to each segment
incline of 70 degrees to is equipped with a filter which
horizontal. cleans the air and prevents
material from entering in case of
- The aeration segments slope pipe breakage inside the silo.
Materials Handling

15 degrees towards the outlet. The air is supplied to the


aeration boxes by a single rotary
The aeration system includes blower at a pressure of 0.8 bar.
filters that prevent material The air is distributed by a pipe
entering and eventually blocking system with six two-way
up the entire aeration system. pneumatically actuated valves
and six solenoid valves, one set

2
3
of valves for each bottom
segment. The rotary blower is
equipped with a noise-reduced
blow off pipe which lets out the
fluidisation air when the
pressure reaches a certain
level.

The squared extraction outlet


through the silo bottom is
equipped with aeration pipes in
the corners and is designed to
allow for manual cleaning by
means of air lances. The
extraction outlet is equipped
with a manually operated slide
gate. The material enters a feed
box via the outlet. The feed box
is aerated and equipped with
one or more pneumatically
regulated flow control gates.
These gates close quickly (two
seconds) and allow regulation of
the flow rates to packer or bulk
loading devices.

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