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mini dal mill

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pulse Processing Machines

We design, fabricate and offer an extensive array of processing machines that is made using high quality raw materials and precision made parts. Widely applicable in the food industry, these machines are known for their efficiency and cost effective rates. These machines are available have sturdy and compact design.

mini dal mill

Mini Daal Mill

Avail from us, our range of mini dhal mills is use for making carrying different processes cleaning and grading, pitting, pre-treatment with Oil & water, conditioning, de- husking & splitting. The various advantages of these mini dhal mills are:
  • Value addition of the product
  • Cost of transportation saved
  • Additional income through sale of seed coats as cattle feed
  • Improved yield of 'Dal' due to use of improved milling technology
  • Easier operation & less maintenance cost

Construction
Jas Enterprises offer mini dhal mill. This mill is simple in construction and easy to operate & maintain. It consist of horizontal tapered roller is covered with emery coating, surrounded by a screen through which the husk is discharged. The shelled pulses passes through an aspirating fan on the oscillating sieve unit, where appropriate grading of pulses is done It is run on only 2 H.P. Automatic arrangement are made for collection of de husked and split pulses, un de husked and split pulses, un de husked pulses, brackens, husk in separate containers and bags. This machine offers dust free operation, does not cause pollution, retains proteins, natural shine etc… motor is provide with a pulley and is mount at the bottom of the stand with V-belt to drive it. The motor requirement is of 2 HP single / three phases.
Process
Process of de-husking is doing in two major steps. In the first step the cleaned and size graded grain are scarify followed by oil addition and sun/mechanical drying. In the second step, the removal of husk and splitting into two cotyledons is doing by passing the material through versatile pulse de-husker. This de-husker gives 2-4% higher yield of good quality Dal, than the traditional Dal mill.
This method developed by Jas Enterprises is less laborious, requires less time and reduces losses during de-husking.
One of these methods developed and ready for commercialization is 'MINI DAL MILL'. The technical up gradation & cost economics of the 'MINI DAL MILL’ combined with facilities of Grader cum Cleaner can prove to be a boon to the farmers. This unit installed near the farm itself.
Process on Dal mill
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 use to obtain cracking and scratching of clean pulses passing through it. For loosening, the husk to facilitate the subsequent oil penetration this is required. Gradually the clearance between the emery roller and cage (housing) is narrow from inlet to outlet. Cracking and scratching of husk takes place mainly by friction between pulses and emery as the material is passing through the narrowing clearance. During the operation, some of the pulses are de-husk and split which are separate by sieving.

Pretreatment 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. These are keeping on floors for about 12 hours to diffuse the oil.

Conditioning:
Pulses are condition by alternate wetting and drying. Moisture (3.5%) is adding to the pulses after sun drying for a certain period and tempering is doing for about eight hours. The grain is dry in the sun again. By allowing water to drop from an overhead tank on the pulses, which are passing through the screw conveyor addition of moisture to the pulses, are achieving. Until all pulses are sufficiently conditioned the whole process of alternate wetting and drying is continued for two to four days. Pulses are finally dry to about 10 to 12% moisture content.

De-Husking and splitting:
For De-husking of conditioned pulses emery rollers called as Gota machine are used. In one pass or single operation, about 50% of pulses are de-husked. De-husked pulses are splitting into two parts. De-husked split pulses are separate by sieving and the husk is aspirate off. Un-split de-husked pulses and tail pulses are again de-husk and milled in a similar way. Until the running pulses are de-husked and split of the whole process is repeated two or 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 be 5” and the water level should be1” 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.

PROCESS DETAILS OF PRE MILLING OF PULSES


sr. No.

Name(s) Of Pulses

Pretreatment with Oil

Period of heaping in shade

Duration of sun drying

Period of heaping in shade

Percentage of moisture for splitting needed for splitting & De-husking

Size grinding for

De-husking & splitting

Splitting only

1.

2.

3.

4.

5.

6.

7.

8.

9.

1.

Bengal Grams (Chana) (chick-pea)

Soaking in water for 30 to 40 minutes

1 Hour.

2 to 3 days

6 to 8 hours.

10 to 12%

Needed

No needed

2.

Arhar/Tur/ pigeon peas/ red grams

Soaking in water for 60 to 90 minutes

3 Hour.

2 to 3 days

6 to 8 hours.

11 to 12%

Needed

No needed

3a.

Masoor (lentil)
Fresh crop before rains

Lost of 100 kg. Of pulses to be mixed in 5 kg. of water

To be kept for 10 to 11 hours under dry sacks

No needed

No needed

10 to 12%

Needed

No needed

3b.

Masoor (lentil)
Fresh crop after rains

To Sprinkle water to get the desired moisture

To be kept for 10 to 11 hours under dry sacks

No needed

No needed

10 to12%

Needed

No needed

4a.

KHESARI fresh crop before rains

Lot of 100 kg. Of pulses to be mixed in 5 kg. of water

To be kept for 10 to 11 hours under dry sacks

No needed

No needed

10 to 12%

Needed

No needed

4b.

KHESARI fresh crop After rains

To Sprinkle water to get the desired moisture

To be kept for 10 to 11 hours under dry sacks

No needed

No needed

10 to 12%

Needed

No needed

5a.

Mung (Green Grams) fresh crop before rains

Lot of 100 kg. Of pulses to be mixed in 5 kg. of water

To be kept for 10 to 11 hours under dry sacks

No needed

No needed

10 to 12%

Needed

No needed

5b.

Mung (Green Grams) fresh crop After rains

To Sprinkle water to get the desired moisture

To be kept for 10 to 11 hours under dry sacks

No needed

No needed

10 to 12%

Needed

No needed

6a.

Urid (Black Grams) fresh crops before rains

Lot of 100 kg. Of pulses to be mixed in 5 kg. of water

To be kept for 10 to 11 hours under dry sacks

No needed

No needed

10 to 12%

Needed

No needed

6b.

Urid (Black Grams) fresh crops after rains

To Sprinkle water to get the desired moisture

To be kept for 10 to 11 hours under dry sacks

No needed

No needed

10 to 12%

Needed

No needed

Further process details of pulses at sr.nos.5a, 5b, 6a & 6b Moong (Green Grams) & Urid (Black Grams)


Oil treatment

Period heaping in shade

Sun drying

Heaping in shade

De-husking

10

11

12

13

14

100 Kg.(220.462 lb) of split pulses to be massaged by 200 Grams of edible oil, grade wise

5 to 6 hours

2 to 4 days

6 to 7 hours

Needed

catalouge

Mini Daal Mill


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