BG80 USE AND MAINTENANCE BOOKLET
Rev.1 of 23/04/2013 of BG80 uk agg2013 Page 27 of 40
Remove any insulation material from the outside of the tank.
Any defects in the wall, which become evident after having uncovered the wall of the tank, must be
eliminated or repaired in accordance with the legislation in force in relation to the construction industry, and in
keeping with good practice.
Failure to correctly secure the mixer, and the consequent stress produced during mixing, may cause
both damage and leakages of fermented substrate, which in turn can cause major environmental
damage.
Therefore, if in doubt, we recommend that you engage an expert to check any deficiencies that may require
improvement and document the findings using images.
Incorrect sealing can cause gas leaks from the digester which in turn can cause risk of
explosions.
There should be no trees, equipment or other risk factors in the vicinity of the mixer which may
compromise the correct operation of the machine.
If the mixer is heavier than the load capacity of the wall of the tank, the installation frame may become
detached from the fixing system (plugs).
An accidental leak of the product, in the event of damage to the tank, would result in environmental damage.
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INSTRUCTIONS FOR SECURING THE MIXER IN PLACE
The instructions provided here below are only valid if the mixer is being installed on a tank which has
never been filled with biomass and/or liquids, gas or vapours which could give rise to risk of
explosion
Before mounting the mixer you should:
- Check the dimensions of the hole created in the ceiling;
- Remove any impurities on the surface onto which the machine is to be mounted;
- Check that the mounting surface and the seal surface are both flat;
- Make any necessary improvements.
Any modifications must be agreed upon with the manufacturer immediately, and certainly prior to mounting.
Before applying the seal between the frame and the surface on which it is to be mounted, check that the
mixer is correctly positioned.
Use a drilling template to make 12 mm diameter holes. Before drilling the first hole, align the template with
the hole made in the ceiling, so that the mixer can be properly secured using plugs.
To prevent the drilling template from moving away from the position of the holes to be drilled, you should
apply a plug as soon as the first hole has been drilled and press the template firmly against the ceiling of the
tank. It will then be possible to drill the remaining holes. To facilitate the operation, the remaining plugs may
be positioned after mounting the installation frame.
Before installing the plugs, clean the holes with compressed air and remove any dust from the
hermetic surfaces, so as to ensure that the plugs penetrate properly.
