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ChE Design > SIZE REDUCTION & SIZE ENLARGEMENT > Flashcards

SIZE REDUCTION & SIZE ENLARGEMENT Flashcards

1
Q

Also known as
comminution

A

Size Reduction

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2
Q

breaking down large
particles into smaller
ones to achieve a
desired particle size
distribution.

A

Size Reduction

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3
Q

Involves
agglomerating fine
particles into larger
ones to enhance
functionality or ease
handling

A

Size Enlargement

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4
Q

These
operations modify the size
of materials to achieve
specific goals such as
improving product quality,
increasing surface area,
or making the material
more amenable to further
processing

A

Size reduction and Enlargement

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5
Q

Methods/Techniques of Size Reduction

A

Crushing
Grinding
Compression
Cutting
Impact

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6
Q

Breaking down
large, coarse
materials into
smaller
fragments

A

Crushing

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7
Q

Producing fine
particles by
applying
mechanical
forces.

A

Grinding

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8
Q

Applying
compressive
forces to break
materials

A

Compression

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9
Q

Using sharp
blades to reduce
the size of
fibrous
materials.

A

Cutting

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10
Q

Using high-speed
forces to fracture
particles

A

Impact

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11
Q

Size enlargement Techniques and methods

A

Granulation
Pelletization
Agglomeration
Compaction
Coating

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12
Q

Transforming
fine powders into
larger, denser
granules

A

Granulation

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13
Q

Forming
spherical or
cylindrical pellets
using pressure
and/or binding
agents

A

Pelletizing

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14
Q

Combining fine
particles into
loose clusters

A

Agglomeration

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15
Q

Compressing fine
powders into
dense, solid
forms

A

Compaction

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16
Q

Adding a layer of
material to
particles for size
enhancement or
functionality

A

Coating

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17
Q

Size Reduction Equipment

A

Crusher
Grinders
Mills
Cutting Equipment

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18
Q

Types of Grinders

A

Pin Mill
Jet Mill

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19
Q

Types of Crusher

20
Q

Types of Mills

A

Ball
Hammer

21
Q

Types of Cutting Equipment

A

Knife Mill
Rotary Cutter

22
Q

For coarse size reduction of large, hard
materials

23
Q

Uses compressive force for primary crushing
of materials like rocks and ores

24
Q

Employs shear and compression forces for Grinders materials like coal

A

Roll Crusher

25
Q

Produces powders and fine particles

26
Q

High-speed impact forces break materials into
fine powders

27
Q

Uses air or steam jets to reduce materials to
micron levels

28
Q

For intermediate and fine size reduction

29
Q

Uses tumbling action for brittle materials like
pigments and ceramics.

30
Q

For fibrous or soft materials

A

Cutting Equipment

31
Q

Uses sharp blades to cut materials like herbs
or synthetic fibers

A

Knife mill

32
Q

Suitable for processing plastics or fibers

A

rotary cutter

33
Q

Types of Granulators

A

Fluidized Bed
High-Shear

34
Q

Types of Pelletizers

35
Q

Forms spherical or cylindrical pellets from
powdery materials

A

Pelletizer

36
Q

Rotating disc for uniform pellet formation

37
Q

A rotating drum rolls the material into pellets

38
Q

Uses fluidization and binder spraying to form
granules

A

Fluidized Bed

39
Q

Rapid mixing and binding via an impeller

A

High-Shear

40
Q

Types of Agglomerators

A

Tumbling
Spray

41
Q

Types of Compactors

A

Tablet Press
Roll Compactor

42
Q

Combines fine particles into loosely bound
clusters to reduce dust and improve
flowability.

A

Agglomerators

43
Q

Material is agitated in a rotating drum or pan

44
Q

Uses liquid binders to form agglomerates in a Compactors spray bed or fluidized bed

45
Q

Compresses powders into denser materials like
sheets or ribbons

A

Compactors

46
Q

Compresses granules into solid tablets

A

Tablet Press

47
Q

Applies pressure between rollers to compact powders

A

Roll Compactor

ChE Design (11 decks)

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