2024年3月16日发(作者：慕容翠柏)
Nordberg HP series cone crushers
Wear parts
application guide
Application guide
Wear parts application guide - Nordberg HP series cone crusher
HP cone crusher and basic concepts
The HP cone crusher is a compressive crusher in
which feed material is crushed between a fixed
bowl liner and a moveable mantle. Bigger rock
particles are crushed directly between the
surfaces of the mantle and bowl liner. This
is called single layer crushing. Smaller rock
particles are crushed between other rock
particles, which is termed multi-layer crushing or
inter-particle comminution. Multi-layer crushing
plays a significant role in the HP cavity. This
improves the end product shape and reduces
wear on the wear parts.
Closed side setting (CSS)
The closed side setting defines the reduction ratio in HP cone crusher
and has a significant effect on the product gradation, capacity and
power draw.
The closed side setting is measured from the bottom of the mantle to
the bottom of the bowl liner at their closest point during the gyrating
cycle.
Feed opening
The feed opening defines the maximum feed size for a crushing cavity.
The closed side feed opening is the smallest distance between the
top of the mantle and bowl liner as measured when they are at their
closest to one another during their gyrating cycle.
The open side feed opening is the distance between the top of the
mantle and bowl liner as measured when they are at their farthest
from one another during their gyrating cycle.
2
In HP standard cavities, the maximum feed size is approximately 80% of
the open side
feed opening. In HP Short head cavities, the maximum feed size is
equal to the closed side feed opening.
Nip angle
The nip angle is the angle between the mantle and bowl liner. Too
large a nip angle reduces the capacity and increases the wear as feed
material will tend to slip back upward in the cavity rather than crush.
This can be observed as bouncing or boiling of the feed material.
Reduction ratio
The reduction ratio is the ratio between the size of feed and the size
of the outgoing product. It is normally measured at the 80% passing
point. A typical reduction ratio in the HP standard cavity is 3-5 and in
the HP short head cavity it is 2-4.
Product
Feed
Reduction ratio = F80 / P80
2024年3月16日发(作者：慕容翠柏)
Nordberg HP series cone crushers
Wear parts
application guide
Application guide
Wear parts application guide - Nordberg HP series cone crusher
HP cone crusher and basic concepts
The HP cone crusher is a compressive crusher in
which feed material is crushed between a fixed
bowl liner and a moveable mantle. Bigger rock
particles are crushed directly between the
surfaces of the mantle and bowl liner. This
is called single layer crushing. Smaller rock
particles are crushed between other rock
particles, which is termed multi-layer crushing or
inter-particle comminution. Multi-layer crushing
plays a significant role in the HP cavity. This
improves the end product shape and reduces
wear on the wear parts.
Closed side setting (CSS)
The closed side setting defines the reduction ratio in HP cone crusher
and has a significant effect on the product gradation, capacity and
power draw.
The closed side setting is measured from the bottom of the mantle to
the bottom of the bowl liner at their closest point during the gyrating
cycle.
Feed opening
The feed opening defines the maximum feed size for a crushing cavity.
The closed side feed opening is the smallest distance between the
top of the mantle and bowl liner as measured when they are at their
closest to one another during their gyrating cycle.
The open side feed opening is the distance between the top of the
mantle and bowl liner as measured when they are at their farthest
from one another during their gyrating cycle.
2
In HP standard cavities, the maximum feed size is approximately 80% of
the open side
feed opening. In HP Short head cavities, the maximum feed size is
equal to the closed side feed opening.
Nip angle
The nip angle is the angle between the mantle and bowl liner. Too
large a nip angle reduces the capacity and increases the wear as feed
material will tend to slip back upward in the cavity rather than crush.
This can be observed as bouncing or boiling of the feed material.
Reduction ratio
The reduction ratio is the ratio between the size of feed and the size
of the outgoing product. It is normally measured at the 80% passing
point. A typical reduction ratio in the HP standard cavity is 3-5 and in
the HP short head cavity it is 2-4.
Product
Feed
Reduction ratio = F80 / P80