Item Code: Jas -MDM-6265

Advantage & Special Feature of Mini dal Mill

• Suitable for processing of all types of pulses
• Easy to operate
• Operates by 2 hp electric motor / oil engine
• Recovery of head pulses - 78% to 80%
• Recovery of broken - 1 to 3%
• De husks and splits almost all pulses retains proteins and natural shine
• Special provision for bangel gram ( Chana , Cheack peas) by stone chakki for de husking and splitting.
• Automatic arrangement of collecting of the following in separate containers and bag de husked and split pulses
• Un  husked pulses
• Broken
• Husk
• Pollution free operation
• Compact size (length 1650 mm x width 900 mm x height 1350 mm )

Construction of Dal Milling (Pulse Milling)

Process of Dal Milling ( Pulse Milling )

Basic processes in dal milling are cleaning, grading, conditioning, de husking, splitting, and separation, polishing and bagging. Major variation is involved with de husking process only. Sometimes linseed oil is also used during dry milling operation to impart shine or better appeal to the milled dal.
The removal of the outer layer of husk and splitting the grain into two equal halves is known as milling of pulses. To facilitate de husking and splitting of pulses alternate wetting and drying method is used.

Flow diagram for milling of pulses

Pulses

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Cleaning, chaffs, dirt, etc.

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Pitting

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Pre-treatment with Linseed Oil

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Conditioning

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De husking and splitting mixture of husk, small broken and powder

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Grading

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Polishing

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Grade I Pulses

Description of various Mini dal mill's Unit of Operations:

Cleaning and grading:
This unit consists of a vibratory inclined sieve, hopper, grain collector, waste collector and motor. The vibratory sieves are providing with different size holes to match the requirements of the type of dal being process. The vibrations are inducing by a cam-operated link, which is mounts on a motor driven shaft.
Pitting:
An emery roller machine is used for cracking the husk layer and for scratching of clean pulses passing through it. This is done for loosening the husk from sticking to the cotyledons in order to facilitate subsequent oil penetration in the following unit operations. Gradually the clearance between the emery roller and cage (housing) is narrowed from inlet to outlet. Cracking and scratching of husk takes place mainly by friction between pulses and emery as the material is passed through the narrowing clearance. During the operation some of the pulses are de husked and split which are separated by sieving.
Pre-treatment with oil & water:
A screw conveyor allows passing the scratched or pitted material through it and mixing of some edible oil like linseed oil is complete. The linseed oil is use at the rate of 1.5 to 2.5 kg/tones of pulses (please refer our guideline for lintel). These are keeping on floors as required to diffuse the oil.
De-husking and splitting:
For de husking of conditioned pulses emery stone coated emery rollers are used. In one pass about 50% of pulses are de husked. De husked pulses are split into two parts. De husked split pulses are separated by sieving and the husk is aspirated off. Anti shoplifting pulses and tail pulses are again de husked and milled in a similar way. For complete de husking and splitting the whole process is repeated two to three times.
Pre milling of pulses:
To obtain best results during de-husking and splitting of pulses in the pulse de husking machine in Jas brand mini dal mills, latest model improved version, pre milling including grading of pulses size wise is very essential.
The raw pulses are first clean of dust, chaff, stones and other extraneous materials. Sieves grade cleaned pulses or pulses graded and soaked in water in cement's tanks having 6" depth. Height of pulses soaked is 5" and the water level should be 1" above the pulses.
Soak pulses are taken out of the water after specific time and put on the sieve. Swollen pulses which do not pass through sieve (from which un-swollen pulses earlier passed through the same) are ready for heaping in shade whereas the pulses which pass through the same sieves. Then these pulses are ready for heaping in shade. Degree of happing of swollen pulses in shade should be 30 to 40. This process should be continuing until the pulses are swill to the desired extent.
There after the pulses are in thin layers in the open sun drying. Duration of sun drying of pulses vary according to weather condition prevailing at the time of processing.
After sun drying, the pulses are again heap in shade so moisture contents in the pulses may become uniform as need in them for de-husking.
Then the pulse are graded again fed in to the pulse de husking machine in Jas mini dal mill in graded lots to achieve he best results with minimum brokenness.
For the guidance of the entrepreneurs, the process of details of pre-milling of pulses after proper cleaning is show here after in a tabulated chart.
Note: -

• Period of soaking in water will vary according to weather condition and quality of pulses.
• Duration of sun drying will vary according to weather condition.
• Pulses should not be warm at the time of De-husking/splitting.
• Pulses should be de-husk and split in graded lots only.
• Pulses shown at one & two must be dry within 3 days to get better results. Their processing in any season should be avoiding.
• The de-husked pulses mixed with the un-husked pulses and the husks are again de-husked in the Jas brand mini Dal mill as usual. In second pass all, the pulses are de-husked.

Application of Jas brand mini dal mill

Our mini dal mill can produce almost all dals like Bengal gram (The chickpea {Cicer arietinum } (also garbanzo bean Indian pea ceci bean ) pigeon pea, also known as toor dāl or arhar dāl (India), Congo pea or gungo pea (in Jamaica), Pois Congo (in Haiti), gandul (in Puerto Rico), gunga pea, or no-eye pea, Masoor { lentil ( Lens culinaris )}, Khesari, Matar (Peas), Soya bean, Vigna mungo, known as Urad, urad dal, udad dal, urd bean, urd, urid, black matpe bean, black gram, black lentil, maas (in Nepali), đậu đen (Vietnamese, literally: black bean) or white lentil, is a bean grown in southern Asia. Green Gram (Moong, Mung beans), Moth Beans, etc...

PROCESS DETAILS OF PRE MILLING OF PULSES

Standard accessories of Mini Dal Mill ( Pulse Mill )

• Motor Pulley.
• Adjustable Rail For Fixing Motor.

Extra Accessories Of Mini Dal Mill

• 2 H.P. ( 1.5 Kw. ) 4 pole totally enclosed fan cooled three phase or Single Phase Sq. cage motor {Electricity (Special power can be accommodated): 220/380/415 Volts, 50/60 Hz , 3 Phase }
• Suitable miniature circuit breaker as per IS: 8828 with 3 meter cable & 3 pin top for single Phase Electric Motors. or starters, ampere meter, capacitor for three phase electric Motor.
• foundation bolts
• V Belts
• Magnetic Hopper
• "Jas" Brand Dal ( Pulse ) Polisher Machine

De husking and splitting of pre-conditioned pulses per hour