3. 1. Disc Mill.
2. Construction
3. Working Principle
4. Types
5. Uses
6. Advantages
7. Disadvantages
CONTENTS
4. A disc mill is a type of crusher that can be used to grind,
cut and shear the solids material.
WHAT IS DISK MILL ?
5. CONSTRUCTION LABEL DIAGRAM
1. The disc mill consists of two iron or
steel plates, or discs.
2. One plate is stationary and the other
one rotates but we do have disc mills
in which both the plates rotate.
3. Grain feed between the plates is
crushed and sheared. Type and spacing
of plates determines fineness of the
feed.
4. The machine is used to crush stones,
metal, or other materials.
5. The discs may have smooth edges.
Some even have blades attached to the
discs for cutting . Depending on the
type of material being crushed or
ground.
6. WORKING PRINCIPAL
.
1. Feedstock is fed between opposing discs or
plates
2. This mill uses a pair of discs held close and
parallel to each other to create a grinding
chamber out of the resulting gap.
3. One disc is held stationary while the other
spins at great speed to grind the material until
it is fine enough to exit from the gap at the
edges of the disc.
4. The feed and product are introduced and
received respectively via different ducts .
7. Different types of disc mills to suit the needs of
different applications.
Single-wheeled models disc mill.
Double-wheeled disc mill.
Vibrating disc mills.
TYPES OF DISC MILL
8. APPLICATIONS
It is used in:
agricultural applications, where theyare used for
milling corn and grains after harvest.
food and chemical processing, and tocrush stones
and metal products.
mining operations toseparate minerals and other
valuableelements from the surrounding rock.
recycling plants forgrinding paper, plasticsand other
reusable materials.
9. Safety interlock
Variable speed 700 - 1,500 min-1
Extremely short grinding time
Noise-insulated grinding chamber
Quick-action grinding set clamping device
Lower power consumption is required because of
low fiction losses.
PRODUCT ADVANTAGES
10. Produces a large amount of dust.
Must be carefully ventilated when used in an indoor
workspace.
They will not handle high moisture grain satisfactorily
Discs may experience wear over time as they grind
various materials, which can reduce performance.
It is only effective in grinding smaller size materials to
fine or ultra fine ranges.
DISADVANTAGES
11. Gloves
Mask
Operator should be away during operation
Make sure that the disc bolt is firmly tight and placed
perfectly.
Do not insert or throw any thing other than the feed
inside the hopper.
SAFETY TOOLS TO BE USED
