ANTTI Vacboost M13, Инструкция по установке и эксплуатации

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Antti-Teollisuus Oy 53 408111 03-2019
Vacboost M13
THERMAL INSULATION
Insulating the sections has proved to be the most profitable method of saving energy. According to drying experi -
ments, the saving of energy (or increase of efficiency) ranges from 10 to 15 per cent, depending on the external
conditions. A hard stone wool insulation 30 mm thick, reduces the conduction of heat via the outer surfaces to a
tenth (82 W/m). It pays to insulate even the top tanks and the sides of the base. This prevents condensing on the
inner surfaces, and keeps the dryer tidy and clean on the inside. Insulating the "cold" parts improves even the
operation of the dryer.
We recommend using as insulation material the PV-KAT stone wool slab covered with aluminium foil, manufac-
tured by Paroc Oy. It is 30 mm thick and fits perfectly between the external folds of the dryer's outer joints. Use
aluminium tape (either heat-sealed or adhesive) to keep the slabs in position.
Insulating the hot air duct (or the ascending part of the outlet pipe, if installed) is even more profitable. For these
objects we recommend using stone wool insulation reinforced by net and covered with aluminium foil, such as, for
example, Partek PV-80 AVM.
To make the insulation work easier, you can download the installation instructions 408061 for the StandAlone
dryer from our material bank on the website of Antti-Teollisuus. You can even purchase the installation kit from
Antti-Teollisuus.
OPERATION INSTRUCTIONS FOR THE DRYER MACHINERY (detailed in-
structions)
Initial adjustment and checking of the dryer
Checking the dryer:
- check that the adjustment of the feeder's speed on the eccentric of the gear motor is not set too high for the first experi -
ments with grain, and that the potentiometer is at point 1. This makes it easier to increase the settings during the operation.
- check that there are no foreign objects, such as, for example, pieces of board or other loose items, inside the dryer
- check that the troughs of the feeders are in the "closed" position
- with the troughs of the feeders in the "closed" position, look from below that the edges of all troughs are
on a level – if this is not the case, adjust them as required by moving the holder cam of the emptying cam
- it pays to set the eccentric adjuster of the feeder machinery into such a position, that the capacity of the eleva-
tor and/or the bottom screw does not fall short even if the frequency converter is in its fastest position
Drying
In the beginning, when the grain is still moist, the circulation speed can be low. The moisture will evaporate quickly.
The heat energy is required for evaporating the water. The temperature of the corn does not rise. During the drying
experiments was established that, as the circulation speed was decreased towards the end, also the efficiency was
decreased (in combination with reducing the air flow, this, however, slightly improved the overall efficiency). Increas -
ing the circulation speed improves the efficiency, and even more importantly, levels down the humidity differences
within the drying batch, because the time that the grain stays in the top tank is shorter. Decrease the feeding rate.
For cereal the position of the eccentric shall be 1.5–2.0 with the default value of the frequency converter 50 Hz.
When commencing the drying of the first batch, it is best to keep the settings at first low and increase the feeding
speed only after the correct values for the other adjustments have been found.