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Granulation equipment operating FAQ
1, water is not added, the better?
Is not. How much plus is based
on the moisture content of the feedstock may be, not random, we must add
the technical guidance of the Ministry.
2, how high vapor pressure as well?
0.25-0.30MPa
but before the steam pressure reducing valve generally not be lower
than 0.6MPa, because the need for saturated steam pelleting quenched.
Pressure after decompression depends on the recipe, rather than
arbitrarily making.
3, the steam condensate system can not drain it?
Be sure to drain, especially when just machines, or vulnerable to jam.
4, Why do you want to change the amount of steam according to the recipe?
Different
formulations have different characteristics, by adding the same amount
of steam pressure and temperature will cause unnecessary trouble, such
as loss of nutrients, grain quality can not be guaranteed, serious
blocking will die, and low productivity.
5, open security machine (always much lower than the rated current), okay?
Wrong,
generally 90-95% of rated load should be maintained, otherwise die, the
pressure roll wear large, high power consumption, low yield, grain
quality can not be guaranteed.
6, finished pellet moisture content as low as possible?
Wrong.
General region to maintain 12-13% moisture particles finished more
reasonable, both conducive to preservation, without affecting the
product out rate; while not affecting animal feed.
7, multi-grade flour sieve back, why?
Mainly
due to the quenching effect is poor, recipes or ring die as a result of
particle hardness is not enough reason, chalking serious.
8, on the die roll gap
Reasonable
die roll gap on production efficiency, particle hardness, wear ring
mold and the pressure roller has a direct impact. Tight, yield, grain
loose, easy blocking machine, faster wear; too loose, small production,
hard particles, easily blocking machine; die roll gap with no load (no
residual material suppression chamber), the pressure roll like turn
non-genetically appropriate (with a slight metallic percussion).
9 reasons for the breakdown ring mold
a,
ring mold material reasons, the opening rate is too high, not enough to
cause strong enough thickness; b, excessive wear; c, suppression
chamber into instant impact caused by foreign bodies excessive force.
10 reasons to install ring mold taper off bolts with frequent
a,
the position of the wear ring mounting surface wear caused by friction
of the contact is not enough to withstand the shear force of the bolt;
b,
new cone ring mold and machine wear rings caused by the friction
surface is not consistent enough to withstand the shear force of the
bolt;
c, new share bolt strength is not enough.
