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6
INSTALLATION
6.1
Mounting instructions
The biogas mixer can be supplied with roof or wall mounting frame.
The different installation types have been specially designed to suit the different tank and
digester manufacturing features, as well as the different biogas plant locations and working
conditions.
To obtain an optimal mixing besides the suitable homogenization of the fermented substrate,
the technical design department or the dealer or the manufacturer have to check the correct
positioning of the mixer.
The location choice has to take into account that lift trucks have to access easily to that area.
Before installing the mixer, ask for the written authorisation of the person in charge
with the wall static calculations.
Doda is not responsible for possible tank damages caused by an unsuitable installation
or use of the mixer.
Explosion danger due to a thunderbolt!
Arrange for a lightning protection system.
Explosion danger due to the Absence of a main equipotential bonding!
The grounding connection has to be executed only by a skilled electrician.
6.1.1 Mixer with roof mounting
To install the mixer, make a hole of 1300 x 1300 mm in the roof. Usually we recommend to
place the mixer at least 4-5 m far from the raw material input area, so that the propeller
radius of action could generate an uniform homogenization of the solid matters introduced.
The mixer position has to fit any other mixers already present.
The mixer thrust effect has not to be altered.
To ensure the correct mixer functioning, we recommend that it should be installed at least 1
meter far from the roof edge, so that the propeller can work also with fermented substrates
characterized by a high dry substance content.
During the design and the carrying out of the hole in the roof, remove the insulating
material (if present).
