Rice mill machine Application:

Rice mill machine is the process that helps in removal of hulls and bran`s from paddy grain to produce polished rice.

It is the most ideal paddy-processing machine for grain distribution station,and farm as well as self-employees.

Rice mill machine Structure:

This kind of machine was one COMBINED TYPE.

One set rice mill machine include:2 sets Elevators,1 set De-stoner machine with Blower,1 set Paddy hulling machine,1 set Paddy Seperator and 1 set Rice Polishing machine.

Also have pipe and Cyclone for the Rice Husk and Rice Bran.

Also have Distribution Box to control these parts.

Rice mill machine Advantage:

1. Our machine Wide application: ideal machine for pressing various rice, such as long-shaped rice, polished round-grained rice, sticky rice, thaliland jasmine rice, basmati rice, etc; also can pressing millet
2. High rice yield: the rice output is 85% - 91% higher than common rice mill
3. Low residual: the broken rice only about 5%
4. Little land occupancy: only 6-8m2 is enough

Rice mill machine Description:

20t-40t complete modern mini rice mill plant  

complete rice milling equipment

Advantage for rice milling equipment:

(1. elevating rice automatically
(2. screening and removing the impurities such as stone and dust
(3. husking
(4. separating clean rice from mixer of rough grain, blight grain and brown rice . polishing rice, etc.
(5.It is an ideal cereal processing machine for both of medium and small factories.

Rice milling processes consist of:

Flow diagram of a modern rice mill

The flow diagram below represents the configuration and flow in a typical modern rice mill.

1 - paddy is dumped in the intake pit feeding the pre-cleaner
2 - pre-cleaned paddy moves to the rubber roll husker:
3 - mixture of brown rice and unhusked paddy moves to the separator
4 - unhusked paddy is separated and returned to the rubber roll husker
5 – brown rice moves to the destoner
6 - de-stoned, brown rice moves to the 1st stage (abrasive) whitener
7 - partially milled rice moves to the 2nd stage (friction) whitener
8 – milled rice moves to the sifter
9a - (for simple rice mill) ungraded, milled rice moves to bagging station
9b – (for more sophisticated mill) milled rice moves to the polisher1
10 - Polished rice, will move to length grader
11 - Head rice moves to head rice bin
12 – Brokens moves to brokens bin
13 – Pre-selected amount of head rice and brokens move to blending station
14 – Custom-made blend of head rice and brokens moves to bagging station
15 – Bagged Rice moves to the market
A – straw, chaff and empty grains are removed
B - husk removed by the aspirator
C – small stones, mudd balls etc. removed by de-stoner
D - Coarse (from 1st whitener) and fine (from 2nd whitener) bran removed from the rice grainduring the whitening process
E - Small brokens/brewer’s rice removed by the sifter

Examples for outputs from the different stages

Clean paddy after pre-cleaning

Paddy grain after precleaning. Poor quality grain is evident from its darker color. These are immature kernels or half filled grains that are not removed in the precleaner. The presence of poor quality grain lowers the total milling recovery.

Brown rice at the rubber roller husker

Mixture of paddy grain and brown rice coming out of the rubber roll husker. With uniform size paddy, about 90% of the paddy should be husked after the first pass. This mixture goes through a paddy separator, after which the paddy is returned to the husker,and the brown rice goes to a de-stoner.

Milled rice after polisher

Milled rice after the 2nd stage friction polisher. Small broken grains are still evident. This product goes to a sifter to remove the small broken grains.

Note: Most mills have several polishing stages for gentle milling. In those mills there is undermilled rice after the 1st stage friction whitener. Not all the bran layers are fully stripped. In times of rice shortage, production of undermilled rice is promoted because of the higher milling recovery.

Brewers rice from the sifter

Brewer’s rice or small broken grains removed by the screen sifter.