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है”ह”ह

IS 11834 (1986): Symbols and flow diagram for rice milling[FAD 20: Agriculture and Food Processing Equipments]

1s t 11834 - ,I986

Indian Standard

SYMBOLS AND FLOW DIAGRAM FOR

. RICE MILLING

Agricultural Produce Milling Machinery Sectional Committee, AFDC 63

Chairman

PROB B. P. N. SIKQH

Members

Representing

G. B. Pant University of Agriculture & Techno- logy, Pant Nagar

SHRI S. N. A~ARWAL Prag Ice and Oil Mills, Aligarh SERI S. MAJITHIA ( Alternate )

SERB K. BHATIA Ministry of Food and Civil Supplies, New Delhi SHRI SWARAJ SIN~H ( Alternate )

SHRI V. G. BHA~VAT G. G. Dandekar Machine Works Ltd, Thane SHRI R. S. SINUH ( Alternate )

DR K. R. BHATT~CHARYA Central Food Technological Research Institute, Mysore

SERI M. M. KRISENAIAH ( Alternnte ) ---- I

SHRI B. S. BISE~

SHRI K. M. SAHAY ( Alternate ) DR N. G. BHOLE

DR S. BAL ( Alternate ) SERI R. K. GAWBIII

SHRI H. P. GUPT~

SHRI N. L. KA~IIHARA

Central Institute of Agricultural Engineering, Bhopal

Post Harvest Technology Centre, Kharagpur

Da M. S. SAXENA ( Alternate) SHRI T. K. S. PATHA~

UniteNd($Deyh!l Machinery & Spares Private Ltd,

Centr; Organization for Oil Industry and Trade, Bombay

Harcourt Butler Technological Institute, Kanpur

Binny Engineering Works, Madras 7, S~nr B. GAJENDRAN ( Alternate L I

SHRI T. V. PERUMAL ( Alternate II ) RESIDENT REPREBENTATIVE Khadi and Village Industries Commission,

Bombay SHRI R. D. SHARMA Shri Vishwakarma ( Emery Stones ) Industries

Private Limited, Ajmer SHRI VED PRAEASH SHARMA Sharma Machine Tools, Ghaziabad

( Centinued on page 2)

@ Copyright 1987

BUREAU OF INDIAN STANDARDS

This publication is protected under the Indian Copyright Act ( XIV of 1957 ) and reproduction in whole or in part by any means except with written permission of the publisher shall be deemed to be an infringement of copyright under thesaid Act.

IS : 11834 - 1986

( Continued from page 1 )

Members

SHRI V~NEET VIRMANI

Re@xenting

Roller Flour Millers Federation of India, New Delhi

SERI RAJENDRA M. SHAH ( Alternate) SHBI M. D. WASNIE Directorate of Oil Seeds Development, .

Hyderabad SHRI R. V. SINQH ( Alternate )

SHRI T. PURNANANDAY, Director General, BIS ( Ex-o&cio Member ) Director ( Agri & Food )

Sccrslary

SHRI R. N. SHARYA Joint Director ( Agri & Food ), BIS

2

IS:11834 - 1986

Indian Standard . SYMBOLS AND FLOW DIAGRAM FOR

’ RICE MILLING

0. FOREWORD

0.1 This Indian Standard was adopted by the Indian Standards Institution on 30 June 1986, after the draft finalized by the Agricultural Produce Milling Machinery Sectional Committee had been approved by the Agricultural and Food Products Division Council.

0.2 Rice milling equipment are now being extensively used in the country. It has, therefore, become necessary to have proper symbols for different components as well as flow diagrams. The adoption of these symbols would help in proper understanding and drawing of the system.

0.3 In the preparation of this standard, assistance has been derived from IS0 3971-1977 ‘Rice milling, symbols and equivalent terms’, issued by the International Organization for Standardization ( IS0 ).

1. SCOPE

1.1 This standard covers symbols and flow diagram

2. GENERAL SYSTEM

2.1 A general rice milling system is given in Fig. 1,

for rice milling.

iS : 11834 - 2986

PRECLEANING CLEANING PADDY GRADI NC I

UNSHELLED PADDY

SHELLING HUSK PADDY

SEPARATION SEPARATiON

POLISHING RICE AND GLAZ I NC I

BROKENS I GRADI NC I

I- -----I

FLOURY PRODUCTS

GRADING

FIG. 1 GENERAL RICE. MILLING DIAGRAM

fS : 11834 - 1986

3. SYMBOLS

3.1 The symbols for various components cleaning, cleaning and dehusking are given

.

of equipment used in pre- in Table 1.

TABLE 1 SYMBOLS RELATING TO PRE-CLEANING, CLEANING AND DEHUSKING

SL No. CAPTION

(1) (2)

9 Scalper

ii) Magnetic separator

iii) Paddy cleaner

SYMBOL

- ___ _- -.___ -_I__

( Co.rtinued )

5

fS : 11834 - 1986

TABLE 1 SYMBOLS RELATING TO PRE-CLEANING, CLEANING AND DEHUSKING - Contd

SL No. CAPTION

.

(1) (2)

iv) Vertical debearder ( awner )

VI Horizontal debearder ( awner )

vi) Disc sheller

_ _-____

SYMBOL

-

(3)

A

vii)

viii) Rubber roll sheller

( Continued )

6

IS :11834-1986

TABLE 1 SYMBOLS RELATING TO PRE-CLEANING, CLEANING AND DEHUSKING - Contd

SL No. CAPTION SYMBOL .._~_

(1) q) (3)

ix) Centrifugal sheller

& -

x) Rubber belt sheller

-<

3.2 The symbols for various components of equipment used for separa- tion and grading of paddy, rice, brokens and floury products are given in Table 2.

TABLE 2 SYMBOLS RELATING TO SEPARATI(ON AND GRADING

SL No. CAPTION

(1) (2)

9 Paddy separator

ii) Static screen paddy separator

-

-

SYMBOL

(3)

I J

( Continued J

7

IS : 11834 - 1986

TABLE 2 SYMBOLS RELATING TO SEPARATION AND GRADING - Contd

SL No. CAPTJON

(1) . 1‘4

iii) Riddle

iv) Husk pressure separator

VI Husk depression separator

vi) Cyclone separator

SYPBOL

(3)

IS : 11834 - 1986

TABLE 2 SYMBOLS RELATING TO SEPARATION AND GRADING - Coritd

SL Nd. CAPTION

(1) (2)

vii) Super cyclone separator .

viii) Husk suction separator

.ix) Specific gravity separator

4 Husk suction separator with riddle

xi) Husk suction separator with supe. rior riddle

SYMB‘,LS

(3)

-T u . rmi3iE 1 c 1

d ------ -.-

63 0

9

IS :11834 - 1986

SL No. CAPTION

TABLE 2 SYMBOLS RELATING TO SEPARATION AND GRADING -- Contd

I SYMBOLS

.-

(1) (2)

. xii) Indented disc separator

xiii) Indented cylinder

xiv) Hexagonal reel

xv) Rotary sieve classifier ( plansifter ) for milled rice

xvi) Rotarv sieve classifier ( plansifter ) for floury products

-- I

(3)

b ittlltttttl

t +

0 c;

T T T

( Continued )

10

IS I 11834’ i 1986

TABLE 2 SYMBOLS RELATING TO SEPARATION AND GRADING - @hntd

SL No. CAPTION I SYMBOL

xvii) Slot perforated giading cylinder

xviii) Wire spiral grading cylinder

3.3 The symbols for various components of equipment used for polishing and glazing of rice are given in Table 3.

TABLE 3 SYMBOLS RELATING TO POLISHING AND GLAZING

SL No. CAPTION

(1) (2) __-__

i) Polisher

ii) Cone polisher

SYMBOL,

.

. i’

( Continurd )

l!l

IS t 11834 - 1986

TABLE 3 SYMBOLS RELATING TO POLISHING AND GLAZING - Confd

SL No. CAPTION

(1) (2) .

iii) Horizontal polisher

_

iv) Whitening or pearling cone

v) Inverted whitening or pearling cone

vi) IIelix whitening machine

.- I

vii) Screw whitener

-

SYMBOL

(3)

--w----y

L ----- J

( Continued )

12

IS I 11834 - 1986

TABLE 3 SYMBOLS RELATING TO POLISHING AND GLAZING - Confd

SL No. CAPTION

6) (2) .

viii) Huller-cum-polisher

ix) Hulling and tamping machine

xl Glazing drum

I

xi) Helix glazing machine

-

. .

_-

-

-,-

- _

SYXBOL

(3)

@

CT

Q \ +

( Continued )

13

IS:11834 - 1986

TABLE 3 SYMBOLS RELATING TO POLISHING AND GLAZING - Contd

SL No. CAPTION

. xii) Glucose feed regulator

xiii) Talc feed regulator

3.4 The symbols for various accessories are given in Table 4.

TABLE 4 SYMBOLS FOR ACCESSORIES

SL No. CAPTION

(1) (2)

3 Screw conveyor

ii) Belt conveyor

iii) Chain conveyor

SYMBOL

(3)

( Continued )

1s 111434 - 19&3

TABLE 4 SYMBOLS FOR ACCESSORIES - Co.&

SL No. CAPTION

(1) (2) ’

iv) Pneumatic Conveyor

v) Bucket elevator

vi) Sacking tube conveyor

vii) Spiral sack slid

-

-

_

- .

-

SYMEOL

(3)

t 0 t

18 : 11834 - 1986

TABLE 4 SYMBOLS FOR ACCESSORIES - Co,,td

SL No. CAPTION

(1)’ (2) .

viii) Wire tissue

ix) Wire spiral grading sieve

x) Slot perforated plate

xi) Round hole perforated plate

-

_-

-

_-

--

--

SYMBOL

(3)

0000

I---- oo”oooo’ 0000~

( Continued )

16

IS: 11834 - 1986

TABLE 4 SYMBOLS FOR ACCESSORIES - Contd

SL No. CAPTION

(1) (2)

xii) Packer discs

xiii) Indented discs

xiv) Slot perforated grading sieve

SYMBOL

-

-

_-

_-

(3)

( Continued )

17

IS:11834 - 1986

TABLE 4 SYMBOLS FOR ACCESSORIES - Contd

SL No. CAPTION

(1) (2)

xv) Suction fal;

xvi) Suction filter

xvii) Pressure filter

xviii) Volumetric measure

-

--

- I --

- _

SYXB OL

(3)

L! 0

t

9% I Continued )

18

IS : 11834 - 1986

TABLE 4 SYMBOLS FOR ACCESSORIES - Contd

SL No. CAPTION

(1) (2)

xix) Sacking scale *

xx) Bin

-

. .._ SYMBOL

(3) ‘. -

-I-

xxi) Automatic scale

- -

I xxii) Beam scale

u’x

V A \

t

0 c3 -1

!

7!L I

( Continued )

19

fs : 11834 - 1986

TABLE 4 SYMBOLS FOR ACCESSORIES - Contd

SL No. CAPTION

-

(1) (2)

xxiii) Depression chest with screw conveyor

xxiv) Mixer

xxv) Bran sacking machine

xxvi) Sacking spout

SYMBOL

(3)

( Conlinued )

IS:11834-1986

TABLE 4 SYMBOLS FOR ACCESSORIES - Contd

SL No. CAPTION

(1) (2) .

xxvii) Sacking bin

xxviii) Hopper

xxix) Air cleaner

-

4. FLOW DIAGRAM

SYMBOL

(3)

\

t

\ /

\

?

/

\ 0

in 4 tonne capacity ( both raw

and parboiled paddy ) are given in Fig. 2, 3 and 4 respectively for guidance.

21

IS : 11834 - 1986

1. Suction blower 2. Paddy cleaner 3. .Rubber roll sheller

4. Husk aspirator 5. Paddy separator 6. Polisher 7. Rice grader 8. Polisher-Huller 9. Rice aspirator

10. Cyclone

E F D

FOR RAR80lLED RICE

1

8

G E F D

A. Dust B1 and Bs. Sand and stone

C. Husk D. Rice E. Bran

F. Brokens G. Coarse bran

FIX 2 RICE MILLING DIAGRAM FOR A MILLIKG OF

ONE TONNE PER HOUR CAPACITY

22

.

FOR RAW RICE

1. Dus~ar-

2. Paddy cleaner 3. Rubber roll sheller 4. Husk separator 5. Paddy separator 6. Polisher

7. Plansifter 8. Aspiration chamber 9. Suction blower

10. Cyclone 1 i. Polisher huller 12. Rice grader 13. Bran sieve

--

t

A;Yxist Al and A,. Sarid and stone B. Husk C. Bran D. Rice E. Big brokens F. Small brokens G. Coarse bran

FIG. 3 RICE MILLI~SG DIAGRAM FOR A MILL OF Two TOKNES PER HOUR CAPACITY

t: . . c

F I

I F 1 F3R PARBOILED RICE

I +____---_--___--J

___~_~ &__ i - c c- :;*Ye---- -_. I ---

_I___-_ __-_

I_ _ _F?i_R:w-R’4’ _ _ _ - - _ J

1. Dust aspirator 2. Magnetic separator 3. Paddy cleaner 4. Auto scale 5. Rubber roll sheller 6. Husk aspirator 7. Paddy separator 8. Polisher 9. Plansifter

10. Aspiration chamber 11. Suction blower 12. Cyclone 13. Sacking sca!e 14. Rice aspirator 15. Rice grader 16. Bran Stabilizer

A. Dust B. Bigger impurities C. Smaller impurities

D. Husk E. Bran F. Rice G. Big brokens H. Small brokens

FIG. 4 RICE MILLING DIAGRAM FOR A MILL OF FOUR TONNES PER HOUR CAPACITY