Your Pump Solution for the Biogas Industry.tecniflow.com/fichastecnicas/seepex/seepex7.pdfInnovative...
Transcript of Your Pump Solution for the Biogas Industry.tecniflow.com/fichastecnicas/seepex/seepex7.pdfInnovative...
Your Pump Solutionfor the Biogas Industry.
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Biogas plants play an increasingly important role in environ-
mental protection around the world. Unlike burning fossil
energy sources such as coal, natural gas or petroleum, bio-
gas is CO2-neutral because the carbon dioxide released in
the process is part of a natural cycle. In addition, the use of
renewable biomasses, such as energy crops, helps to save
these limited resources.
The basis for achieving the largest possible gas yield – and
therefore economic success – is efficient plant management.
Among other factors, this depends on the choice of the
equipment used: It should be reliable and easily maintained –
coupled with low energy consumption.
As a leading international provider of products and services
for pumping and treating liquids, seepex offers a wide range
of solutions to match the specific requirements of your bio-
gas plant.
The modular seepex system allows us to offer the optimal
technical and economic solution for transporting fermentation
products and conveying almost all process-related products. Each
pump is individually selected to the specific requirements
of your sector, your company, your installation location and
of course your application.
More than 600 employees around the world make sure of
this. They develop, manufacture and market your conveying
solution – whether progressive cavity pumps, macerators or
controlling systems.
No wonder the biogas industry without our pumps is
inconceivable.
For a clean environment.
We are a member of the German Biogas Association (Fachverband Biogas e.V.) and of the ADBA, Anaerobic Digestion and Biogas Association, Great Britain.
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Biogas industry
Pumping of:
• Corn and corn silage
• Digestate
• Faecal sludge
• Food waste
• Liquid substrate, such as
liquid manure
• Recirculate
• Solid manure
• Waste fodder
seepex BN range pumps for conveying fermented products that can also contain solids like shards of glass or small pieces of plastic.
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Biogas plant application – overview.
Pumps of range BN convey liquid manure, cooking oil and flotation sludge.
Pumps of range BN are used for important conveying jobs, such as pumping fermentation products from the silo.
BTH/BTHE
Control system BGDC
BN
BN
BN
Macerator
Silo/collecting vessel
Coferments
Liquid substrate
Biogas
Recirculate
Fermenter(mixing tank)
Schematic diagram of a biogas process
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Miscellaneous vegetable waste before conversion to biogas. Pumps of range BN combined with seepex macerators inline, convey and homogenize various fermentation products.
BN
BN
Block heat and power plant
Digestate reservoir
Heat
Electricity
Digestate residue
preparation, fertilizer
Biogas
Fermenter (secondary fermentation)
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The seepex bio substrate mixing system for fermentation product conveying.
Thoroughly mixing the solid and liquid fermentation products
before feeding them into the fermenter has two fundamental
advantages:
• larger gas yield thanks to greater bioactivity
• reduced energy consumption thanks to less stirring in
the fermenter
Our bio substrate mixing system is the ideal solution, consisting
of a sturdy feed hopper pump from product group T, a
standard BN range pump and the “Biogas Control System“ –
BGDC for short.
The feed hopper is generously proportioned. The rotating
screw mixer and conveyor ensures efficient mixing of solid
fermentation products like:
• corn and corn silage
• waste fodder
• solid dung
• food waste
It also ensures good mixing of the liquid substrates added by
means of the standard pump, such as:
• liquid manure
• recirculate
• faecal sludge
The prepared fermentation mass is then pumped by the feed
hopper pump to the mixing tank or directly into the fermenter.
We offer various designs of feed hopper pumps matched to
the properties of the fermentation products being conveyed.
In particular, the BTH range pump is already used success-
fully in many biogas plants. This special and unique seepex
development has a separately driven and reversible ribbon
screw that is decoupled from the pump train itself, achieving
the best mixing and pumping results.
The “Biogas Control System“ unit combines all the important
controller properties:
• The duration of mixing and the needs-based feeding of
the solid and liquid content can be adjusted individually.
• Optimized process settings can be saved and accessed at
any time.
• Easy to integrate into a higher-level plant control system
using flexible bus systems.
Bio substrate mixing system, consisting of seepex BTH and BN pump ranges with Smart Conveying Technology, SCT.
Benefits
• Increased gas yield
• Reduced energy consumption
• Efficient plant operation thanks to optimized process
control
• Comprehensive range of feed hopper pumps –
specifically matched to your fermentation products
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seepex BTH range pumps ensure thorough mixing of the fermentation products with subsequent pumping.
Bio substrate mixing system – pumps of range BTH and BNBTH 70-12 • Conveying product: silage, fermentation product consisting of solid dung, waste fodder • Conveying capacity: 20 m3/h (88 GPM) Pressure: 4 bar (58 PSI) • Temperature: 20 °C (68 °F)BN 35-6L • Conveying product: Liquid manure • Conveying capacity: 16 m3/h (70 GPM) • Pressure: 1 bar (14.5 PSI) • Temperature: 20 °C (68 °F)
Systematic flow chart of the fermentation product transportation process step
Control system BGDC
BN
Silo/collecting vessel
Coferments
Liquid substrate
Fermenter(mixing tank)
Biogas
Recirculate
Fermenter (secondary fermentation)
BTH/BTHE
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Innovative – Smart Conveying Technology, SCT.
The seepex innovation “Smart Conveying Technology“ – SCT
for short – is an essential component of the seepex bio sub-
strate mixing system. It has been tried and tested thousands
of times in solutions for a wide range of conveying tasks.
The advantages of this intelligent, patented technology over
standard progressive cavity pumps or rotary lobe pumps
become apparent in biogas plants, in particular. Examples
include the area of fermentation product and re-circulate
conveying.
Necessary maintenance work on the rotor and stator can be
carried out with minimal effort and in the shortest of time,
thanks to ingenious design principles – meaning that down-
time is kept to a minimum. The pump remains in its place
during servicing and the connected pipelines do not have to
be removed.
The integrated retensioning device means that the stator‘s
service life can be increased by up to 30 % and the rotor‘s
life by up to 50 %.
All these advantages lead to reduced life cycle costs and
greater productivity and economic efficiency for your biogas
plant.
“Smart Conveying Technology“ makes replacing the rotor and stator up to 85 % faster.
Benefits
• Longer durability for rotor and stator thanks to integrated
retensioning device
• Extremely easy maintenance due to fast assembly/
dismantling of rotor and stator
• High productivity due to short maintenance downtimes
• Small space requirement as no space needs to be
included for removing the stator
• Easy handling during maintenance due to low-weight
components
Pump of range BT 130-6LSConveying product: Food waste Conveying capacity: 40 m3/h (176 GPM) • Pressure: 3 bar (43 PSI) Temperature: 5 – 40 °C (41 – 104 °F)
Pumps of range BN 17-6LS and BN 70-6LBN 17-6LS • Conveying product: Faecal sludge • Conveying capacity: 8.5 m3/h (37 GPM) • Pressure: 2 bar (29 PSI) • Temperature: 5 – 40 °C (41 – 104 °F)BN 70-6L • Conveying product: Faecal sludge • Conveying capacity: 60 m3/h (264 GPM) • Pressure: 2 bar (29 PSI) • Temperature: 5 – 40 °C (41 – 104 °F)
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Pump of range BTM 17-12Conveying product: Food waste Conveying capacity: 3.6 m3/h (16 GPM) • Pressure: 2 bar (29 PSI) Temperature: 5 – 40 °C (41 – 104 °F)
Pumping solutions for food waste.
Due to its relatively large energy content, waste from the
food industry is increasingly being fermented in biogas
plants. This includes:
• food scraps, production residues, rejected batches,
excess production
• expired goods such as cooking fats and oils
• dairy waste, baked goods
• abattoir waste or food by-products
• fryer residues
• fruit and vegetable waste
• grains
However, the use of this waste should not have a negative
effect on either the biogas process or the agricultural use of
fermentation residue. In this context, it is important to mac-
erate or homogenize the waste. It is also advisable to trans-
port the waste in a closed system to avoid unpleasant odors.
Thanks to their specific characteristics, our products are
ideally placed to fulfil these requirements. The BTM range
pump with an integrated cutting unit that we developed and
patented is the only one of its kind on the market. It chops
and pumps in a single step. Even large-sized conveying
products such as whole pieces of fruit or perished poultry
can be processed. No additional grinder is needed, leading
to a significant reduction in investment costs.
In addition to this, we offer macerators that chop waste into
particularly small pieces, thereby homogenizing it.
Pump of range BN 17-6L and macerator 25IConveying product: Miscellaneous food wasteConveying capacity: 8 m3/h (35 GPM) • Pressure: 1.5 bar (21 PSI) Temperature: 20 °C (68 °F)
Benefits
• Saving on investment costs
• Positive effect on the biogas process thanks to material
maceration and homogenization
• Pumping in a closed system to avoid unpleasant odours
• BTM range pump – chops and pumps in a single step
seepex BTM range pumps convey and chop in a single step.
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Your pump solutions at a glance.
seepex pumps gently transport low to highly viscous products
with or without solids, as well as low or high-temperature
products with low pulsations or low shear action. They also
feature excellent metering precision.
Pumps from the BN range are used in almost all industrial
sectors. They convey low to high viscosity materials with or
without solids with a ds content of up to 15 %. They are
also used for conveying liquid manure and recirculate.
> Conveying capacity: 30 l/h – 500 m3/h
(0.13 – 2,200 GPM), Pressure: up to 48 bar (720 PSI)
BTH range pumps feature a separately driven, concentrically
rotating ribbon screw with a maximized diameter and long
pitch. Through separate control of the conveying screw
speed, the BTH pump can be used for almost any conveying
media. The variable speed auger permits optimum filling with
the solid fermentation products. Even media that tend to
form bridges can be handled with ease due to the large
screw diameter of the BTH pump.
Combined with BN range pumps and the control system
BGDC, the BTH is a basic component of the bio substrate
mixing system.
> Conveying capacity: 0.5 m3/h – 130 m3/h
(2.2 – 572 GPM), Pressure: up to 36 bar (540 PSI)
A special characteristic of the BTM range is the patented
macerator integrated into the compression zone. The knives
on the rotating conveying screw chop the fed products in
combination with the cutting tools fastened in the compres-
sion housing. Integrated into a closed system the pump
permits macerating of fruit, vegetables or abattoir waste,
for example, with subsequent pumping.
> Conveying capacity: 0.25 m³/h – 130 m³/h
(0.22 – 2,200 GPM), Pressure: up to 36 bar (540 PSI)
Range BN with Smart Conveying Technology
Range BTH/BTHE
Range BTM
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Control system BGDC
Range I
Factors such as dosing liquids and solids and mixing these
materials are important process parameters that need to
be adjusted individually. Optimized process settings need
to be saved and accessed at any time. All these important
characteristics are included in the seepex BGDC control
system. It is an basic component of our bio substrate mixing
system.
Macerators from seepex reduce the size of solids and fibers
in the pumped medium. In biogas plants, this leads to further
maceration or homogenization of the fermentation products.
seepex macerators are available as inline designs with inte-
grated solid separators and universal versions for direct
installation in a pipeline or with a supply container with a
direct connection to a seepex pump.
> Flow rate: up to 150 m3/h (660 GPM)
See our “Product groups and ranges“ brochure for further
solutions for a wide range of applications.
And what can we get flowing for you? Your nearest contact:
Or visit www.seepex.com BIO
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