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Blow RoomYM - 2011

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Major Objectives

Opening

CleaningMixing and blending

Regularization

Lap formation

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Action of Blowroom

Action of opposing spikes

Action of air currentsBeating action

Regulating action

Action of gravity and centrifugal force

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Characteristics of B/R

Technological Aspects Commercial Aspects

1. It Produces 10%increase in neps.

1. Blowroomproduces 5-!0% ofthe total yarnmanufacturing waste.

2. The 50% of thiswaste are fibers.

3. It consumes 5-10% of the totalconversion cost.

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1.Bale Opening

andBlendingZone

ManualBaleOpening(BaleBreaker)

AutomaticBaleOpeningBlendomate(BDT-019)Unifloc(A-11)Autoplucker}

2.CoarseCleaningZone

StepCleanerPorcupinebeaterAxiflow

3.BlendingandMixingZone

Unimix(Rieter)Multimixer(Trutzschler)

4.FineCleaningZone BladedBeaters

eCleanin

g,Opening&LapForming

Zone

KrischnerBeaterScutcher

Operating Zones of Blowroom

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Cleaning

A cleaning line remoces only about 40-75% of thetrash in the material.

Removal rate depends upon

Raw material type

Machinery employed

Ambient conditionsRemoval of fibers increases by more than 240%

when amount of waste removal is doubled, whereas only 41% more trash is extracted.

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1. BALE OPENING &BLENDING ZONE

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Bale breaker / Blending Hopper

Also known as bale openers

Feeding point of B/RBlending hopper is smaller version of bale

breaker (for blending only)

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Operation Principle

Action of opposing spikes (for gentleopening)

Action of air currents (for dust extraction)

Material regulation (for homogenity)

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Parts of Bale Breaker

1. Creeper lattice

Feeding point

6 ft long

Leather strip / wooden sticks

4-5 ft/min speed

2. Feed lattice

5 ft long

Comparatively faster speed

3. Inclined lattice

Spiked lattice

10 ft long

Inclined at 60

Trasfer of material at higher level

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Parts of Bale Breaker (cont)

4. Evener roller

Sharp spiked roller

Opening and cleaning function

Guage is very small

5. Stripper roller

Cotton removal

6. Cleaning roller

Cleans the evener roller7. Swing door

Controls the level of cotton in chamber to 75%

8. Suction fan

Exhaust the light impurities

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Working of Bale Breaker

Manual opening

Conditioning for 24 hrs

Fed by creeper lattice

Distance between evener roll & inclined lattice can beadjustable

Opening & mixing takes place

Swing door is connected with limit switch to controlfeeding

Cleaning efficiency of bale breaker is 30-40%

Production is 1000-1200 lb/hr and require 3-5H.P

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Advantage

Very less loss of lint (short fibers) withwaste, i.e., if total of 40% impurities are

dropped, then out of this amount, lint isonly 20% and remaining waste is 80%.