Silage Clamp Construction
The ARK silage clamp system is designed to be simple and quick to construct yet highly effective. Thirty years of German design has gone into making a clamp which is perfect for anaerobic digestion plants.
The first step is to get in touch with ARK Agriculture so we can help you pick the perfect design for your clamps - call us now on 01787 220560.
If you are working on a large AD project you should also be talking to one of the many ground workers in the UK who have built our clamps and can provide you with a cost for the complete build.
After a conversation over the phone we will then organise a site visit and produce a design for your clamps based on what you intend to store and how quickly you intend to empty the clamps (feed out rates). We take into account a whole range of factors including machinery availability, cover sizes, site levels and wind direction.
With each AD plant there tends to be a variety of feedstock requirements which all need to be considered – we have the expertise to offer advice on this. For example a clamp for storing sugar beet pulp requires a different design compared with a clamp that will store maize silage.
During site visits we pay specific attention to the environmental regulations (SSAFO regs), which you must meet and how they will alter your choice of clamp location.
DOWNLOAD: SSAFO Regulations PDF - CLICK HERE
We will then suggest the design that combines all of the above factors and helps you achieve the best possible silage quality.
Once you have agreed on the design you may need to apply for planning permission which we can help with by sending across pictures and examples of clamps.
Before you begin construction you must fill in the form WQE3 from the Environment Agency to ensure that your proposed clamp is approved by them. This is mandatory.
The form can be found by clicking on the link below:
Once the footprint of the clamp and the clamp design has been agreed and the order has been placed, ARK Agriculture will produce detailed technical drawings and delivery schedules for the required panels and parts which will be managed by our team to meet your site requirements.
On site the first step is to clear the area in which the clamps are going to be constructed and begin the building of the earth banks. For most sites the banks will be made from the aggregate dug out during the levelling process of the clamp base.
The banks are built up and compacted (or alternatively the clamps are built into an existing hill). They are then shaped to a rough angle of 23 degrees from vertical.
A membrane should then be placed over the bank and wooden stakes driven into the bank, leaving 0.25m exposed between the earth bank and the end of the stake. The end of the stake is then cut to the exact 23 degree angle of the panel.
The patented ARK seating channel is then laid at the base of the bank on a thin mix of concrete. Once the channel is in place the panels are placed in the channel and lent into the wall until they touch the end of the stake.
The panels are secured together with metal bars (supplied by ARK Agriculture and the joints are treated with ARK bitumen which is resistant to organic acid (leachate) attack and only available in the UK through ARK Agriculture.
The gap between the panel and the earth bank is then filled with free draining gravel and a rain water collection drain added on top of the panels.
Once the wall is complete the asphalt base of the silage clamp needs to be laid against the bottom of the panels tying the whole system into place.
Your clamp is now complete and can be used within 24 hours of the asphalt being laid. Total build times vary but as a rule of thumb panels can be placed at 50lm a day.
Silage clamp construction doesn’t need to be complicated, for further information about the ARK system please don’t hesitate to contact us.