Bentall Rowlands Storage Systems are renowned worldwide for their designing, manufacturer and installation of grain storage silos and ancillary equipment. For example, PMR Contracts Limited silos, supplied by Bentall Rowlands survived the Christchurch earthquake, which flattened most other silos in the city.

1. Digital Re-print - January | February 2012
Increasing storage capacity
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2. FEATURE FEATURE
INCREASING
STORAGE
CAPACITy by Kevin Groom
Technical Director at Bentall Rowlands,
512031Grain_Feed_190x58gb_4c:Dammann Services 23.12.2011 15:34 Uhr Seite 1
Scunthorpe, UK
... Follow the leader in bulk goods handling, dust-extraction and ventilation plants
est a
The QUICK CONNECT pull-ring makes the acclaimed Original Quality to a Modular Design Requ ogue!
B
®
l
cata tline
entall Rowlands Storage Systems range to meet the requirements of an ever- and hoppers keeping to safety standards and Jacob modular pipe system even more economical • Straight welded, lipped-end pipes and components. Ho 5580 or eu
at
1 9 systems.
are renowned worldwide for their changing market. margins, one of which is Tanzania, this 32.0m (0)57
for installation. In new plants for animal feed, • ø 60 mm to ø 800 mm in a standard range. +49 acob-pipe
.j
www
designing, manufacturer and installa- Within its portfolio it manufactures a variety of diameter silo is planned for 100,000 tonnes of pharmaceuticals, chemicals, food, glass, semi- • Larger diameters / special requirements upon request.
tion of grain storage silos and ancillary silos such as flat bottomed silos, to complement storage. Also 13.0m diameter hoppers have conductors or environmental technology as • Larger than ø 350 mm also available with flange connection. Fr. Jacob Söhne GmbH & Co. KG
Germany
equipment. For example, PMR Contracts this Bentalls also produces an extensive range of been built in Uganda, which is the largest so far. well as for upgrading existing layouts user- • Powder coated steel or hot-dipped galvanised steel as well as stainless steel. Phone +49 (0)571 95580
www.jacob-pipesystems.eu
Limited silos, supplied by Bentall Rowlands silo accessory equipment and on floor storage Demand for bulk storage and handling friendly system installation becomes precise • 1 - 3 mm wall thicknesses.
survived the Christchurch earthquake, which equipment. All design and manufacture is done equipment is being increased worldwide. and easy due to the great versatility of • Shock-explosion certified pipes and components available.
flattened most other silos in the city. in-house making sure that bespoke solutions can Growing volumes and competitive pricing mass-produced pipe components. • Up to ø 400 mm normally dispatched immediately from stock.
be offered and that they design to Eurocode, DIN in grain handling charges require efficient solu- EUROPE’S NO. 1 IN MODULAR PIPEWORK SYSTEMS – Used in all industrial sectors
Bentalls specialise in the production of turn- and various Seismic requirements. tions. After the unloading of ships, road or rail
key storage, storage handling, storing seeds, vehicles, the bulk materials are typically held in
cereals, malts, oilseeds, grains, pellets, rice and in Utilising the latest steels available intermediate storage in bulk storage bins before
general for the agriculture/agro-industry, biofuels The need for larger and larger stores world- onward conveying or processing. Bins balance
and biomass. wide to house grain, plastics and biofuels etc, the flow of materials between the stages of raw
It has worked with many of the UK’s co- has led Bentalls to invest in a new plant and material intake, production of intermediates and
operative central stores as well as worldwide, equipment to be able to cope and lead the way end products and holding the finished products
such as Woldgrain Storage Ltd, PMR Contracts in utilising the latest steels available. prior to shipping.
Ltd and GBH Mombasa. Bentalls keeps in close contact with the One of the biggest challenges of the century
The company markets its product range major steel producers who are constantly devel- is to supply food worldwide. Every year, millions
through an extensive dealer network for the oping high strength low alloy steels together of tonnes of grain are collected stored and
agricultural market and through specialist com- with the standard G600 coated galvanised steel, handled. More storage systems are being built
panies for industrial projects. Close relation- which has started to pay dividends as end users worldwide to help prevent raw material losses,
ships with key raw material suppliers allow a are becoming aware of the need for trouble as this is the most important commodity, as
program of continual prod- free storage, which can last decades as well as harvests have thrown challenges up year upon
uct improvement. Improving natural disasters. year. This has made storage systems increase
product quality and supply by The life expectancy is based on category C3 their quality to help preserve the products.
utilising the latest raw material which is urban inland/mild coastal which has a
technology ensures it stays corrosion rate of 1.35 microns per year; this is Quick turnaround at Woldgrain
ahead of the rest by supplying quality steel at before any maintenance is required. Because of Woldgrain Storage Ltd is one of Bentall’s
competitive product prices. this advance in the strength of steels, Bentalls UK-based customers after supplying them
Bentall Rowlands has an extensive product has been able to supply large diameter silos with 14 silos and 11 hoppers for the con-
26 | January - february 2012 Grain &feed millinG technoloGy &feed millinG technoloGy
Grain January - february 2012 | 27

3. FEATURE
“Demand for bulk storage
and handling equipment is
being increased worldwide.
Growing volumes and
competitive pricing in
grain handling charges
require efficient solutions”
struction of With the expansion of the facility it
Project Valiant, means that it will only take 20 minutes to
with a 20.0m turnaround each truck from weighbridge to
Silo Construction & Engineering diameter silo
going up in May
weighbridge whereas it used to take 50-55
minutes to do the same thing, creating a
Modular square bins 2011. They are more cost effective turnaround and avoiding
one of the larg- the situation of trucks waiting to go out and
est grain trad- come in, as time is money.
ing companies The primary function of the business is
within the UK. to operate as a ‘Farmers Co-operative’, with
Woldgrain the storage space being owned by the share
Storage Ltd holding membership. The Co-operative
was established nature of the business means Woldgrain
in 1980 and operates on a non-profit making basis.
is currently a Woldgrain has just completed phase II of a
57,000-ton major expansion programme, named Project
grain storage Valiant that has seen the capacity rise to 57,000
facility, situated tonnes, for which Bentall Rowlands supplied 14
at the foot of silos and 11 hoppers of varying diameters. A
the Lincolnshire grant from EMDA for 1.5 million of the capital
Wolds. The cost, allowed for the building of an advanced
facility has been processing facility with 2 new intake pits, 2 high
SCE
added to and capacity driers and a new colour sorter. This
been brought gives new and existing members a competitive
up to date over advantage in the market place when it comes
the past few to marketing their grain.
years, as intake The facility will be further enhanced in
and discharge Phase III of the Valiant Project.
SCE is a partner with
the international rates are This is currently at the planning stage and
increasing rap- will feature high capacity cleaners and addi-
feed & food industries • idly and com- tional storage space. The facility is already
consultancy & engineering firms • bines, lorries helping growers gain added value through
machine & plant designers • and the speed cooperation, ensuring economies of scale
of movement and delivering vendor-assured grain to food
www.sce.be have all got big- producers and processors.
ger and faster. A lot of central stores restrict the intake
28 | January - february 2012 Grain &feed millinG technoloGy

4. FEATURE
to one or two product lines but Woldgrain Zealand; Bentalls have supplied three con- Revolutionised the handling of
don’t. They will take anything a member is tracts already consisting of nine silos and bulk cereal imports
growing, provided it is in a sufficient quantity. seven hoppers, with eight new silos being One of Bentalls largest contracts has
This is popular within members as there supplied in February, which will be for a been Grain Bulk Handlers. Since opening
can be up to 15-16 different commodi- leading flour milling company in Christchurch. for business in 2000, Grain Bulk Handlers
ties to segregate, but this entices the local The PMR contract was originally built Ltd has revolutionised the handling of bulk
farmers to buy into the central store and for the New Zealand Government to store cereal imports in Mombasa and in doing so
commit tonnage to be looked after. Farmers oilseed rape; the stored grain would then go has brought operations up to international
can also be advised in marketing and sales for crushing to be turned into biofuel. The standards in accordance with the port’s
through Openfield (Woldgrain are part of hopper silos were designed to hold the wet Master Plan.
Openfield), Openfield provides peace of oil seed rape prior to going through a con- Grain Bulk Handlers Ltd (GBHL) receives
mind for the farmers as Woldgrain collects tinuous flow drier. The larger silos are fitted deliveries of bulk cereal imports from around
the grain after harvest and all the member with aeration and are used for the long-term the world at the port of Mombasa in order
has to do is speak to Openfield about storage of the oil seed rape. The pressroom to meet the ever-increasing demand from
when the market might be right for selling, runs for 46 weeks of the year pressing the oil millers, traders, NGOs and relief agencies
this helps the farmer concentrate on other seed rape to produce Bio Diesel. in East and Central Africa, including Great
things. The waste cake that is produced from the Lakes, Southern Sudan and Somalia.
“One important
aspect of design of
structures using Seismic
codes was recently
demonstrated with the
very unfortunate and
devastating earthquake
in Christchurch
New Zealand”
Due to this up-to-date facility and fast pressing is in turn fed to dairy cows making GBHL immediately improved quayside
turnaround there is an increase in farmers sure there is no waste. The site consists of productivity by being able to discharge at a
taking up these options of central stores. silos which are 16M diameter by 12.8m high rate of 600 tonnes per hour. The average
As the onsite drying and temperate control with a capacity approximately 1000 tonnes daily discharge rate at the terminal from
keeps their grains at the best possible price. for each silo in oilseed rape and also two specialised bulk carriers is 11,000 tonnes. On
As more and more farmers take up these eight metre diameter hopper silos by 12.0m some occasions daily performance rates are
options Woldgrain keeps expanding and overall height capacity 240 tonnes of oilseed as high as 13,800 tonnes.
Bentalls are keen to supply them. rape. There were a number of other benefits
The oilseed rape site was only situated for ship operators and importers in terms
Seismic codes 14 miles away from the first quake, which of faster discharge times, lower freight and
One important aspect of design of struc- measured in at 7.2. PMR were very con- insurance costs, greater economies of scale,
tures using Seismic codes was recently dem- cerned that the silos would split, as there improved cargo quality, better accounting
onstrated with the very unfortunate and were news reports of collapsing silos, but and reduced inventories and crucially, bet-
devastating earthquake in Christchurch New after doing an engineering inspection on ter accounting of discharged and delivered
Zealand, where many silo’s and hoppers suf- the plant there was no damage. But only quantities.
fered structural damage. 500m away a feedmill had all of its silos The KPA has also seen better berth
However, the facilities Bentalls provided collapse. utilisation as stipulated in their master plan
in these areas stood the test. Contracts The reason why the site did not fail is all and increased revenues from harbour dues.
recently supplied by Bentalls together with silos are designed using Seismic codes and Equally, the Kenyan economy has gained
PMR Contracts LTD in New Zealand for to withstand earthquakes of a certain mag- from additional hard currency earnings. As an
Biofuels were unaffected. nitude as laid out in the New Zealand and interim measure GBHL leased warehouses
PMR Contracts LTD does contracts Australian codes of practice which Bentalls at the port, near the terminal and within
on the North and South islands of New stringently adhered to. the Island to offer warehousing service on
30 | January - february 2012 Grain &feed millinG technoloGy PREVIOUS PAGE NEXT PAGE

5. FEATURE
“The aim of
introducing long
term bulk storage
silos was to
reduce the cost of
warehouse storage
and subsequent
distribution”
long-term basis for grain handled through complex; road delivery complex comprising Phase 3
its terminal (especially those for transit and two bagging points and one bulk hopper; This phase shall add to the previous
transshipment) totaling to approximately two road weighbridges with date link to the phases by providing a further 22 silos of 5000
75,000 tonnes capacity. Use of the ware- transit terminal complex and computer net- tonnes each plus eight silos of 1250 tonnes
houses helped in easing cargo dwell times at work; internal paved roads, retaining walls, providing a total bulk storage capacity of
the transit silos. storm water drainage, ring-man fire preven- 120,000 tonnes for long term basis.
There was, however, a need for a long- tion system and five silos of 5000 tonnes The GBHL extension, being for long-term
term solution to the problem. GBHL man- each giving total capacity of 25,000 tonnes, storage facility has design features, which
agement was convinced that the answer with related elevators, conveyors and dust ensure the condition of bulk grain stored,
to this problem was the provision of a extraction systems. does not deteriorate in the silos. For the
long-term warehousing service for bulk grain. Phase I was designed by Bentalls with plan- purpose of preserving as well as enhancing
Thus, plans to develop long-term bulk ning for further expansion. With global land the condition of bulk grain in store, the
storage silos at an area in the vicinity of the prices increasing utilisation of land space is long-term storage silos are fitted with tem-
transit terminal was conceived which could becoming a key issue when designing bulk stor- perature monitors and devices for aeration
be connected to the current transit silo age Ssystems. Phase II extension provides good of cargo.
complex by conveyors. evidence of our silos and equipment nesting The silos also have facilities to enable
The aim of introducing long-term bulk capabilities, utilising costly land to its maximum fumigation of bulk grain in store whenever
storage silos was to reduce the cost of ware- benefit. GBH Phase II investment isn’t set to necessary.
house storage and subsequent distribution be the last therefore once again consideration This way, bulk grain stored on long-term
for GBHL clients. Moreover it became crucial is taken for further future expansion. basis remains in excellent condition.
in providing a distribution hub for commod- Bentalls pride itself on the fact that many
ity traders and relief agencies to expand their Phase 2 existing customers come back to Bentalls
use of Mombasa to service regional demand. This phase adds to the existing storage year-after-year for the quality and service
capacity developed in Phase 1. we provide; the best recommendation is our
Phase 1 Additional features were also added to worldwide customer base.
This phase involved the acquisition and enhance service delivery. Bentalls supplied
development of many of the key elements the main assets which were: five silos of 5000
of the overall project. Bentalls supplied five tonnes each plus four silos of 1250 tonnes About the company:
silos each silo with a volume of 6505 square providing a total capacity of 30,000 tonnes; Bentall Rowlands of Scunthorpe in
metres, which store 5106 tonnes each. control room with data link to the main the UK was founded in the early
The site comprises: freehold land previ- control room situated in the transit terminal; 1980s. The company specialises in
ously rented by GBHL as lorry parking area, expansion of the delivery complex to include the production of turnkey storage,
perimeter wall surrounding the entire site; two extra road delivery points plus one bulk bulk storage handling and processing
300 metre single belt conveyor with a trans- and one bagged rail delivery points; railway equipment for agriculture and industry
fer speed of 200 tonnes per hour to link the siding, including a rail weighbridge and deliv- on a worldwide scale.
long-term storage silos to the transit terminal ery pit for receipt of export cargo.
32 | January - february 2012 Grain &feed millinG technoloGy PREVIOUS PAGE NEXT PAGE

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