Grinding method 2

I have not confirmed this method but it looks good in theory. An electric garbage disposal unit/food waste disposer/sink grinder, aprox 370 W, 2600 RPM, cost: 200 Euro. No knives or blades. Instead, it is a rotating mechanism which presses the material out through small holes in the outer walls.

Grinding method 3 (recommended)

I have never seen this method mentioned in relation to AN prill grinding. However, theoretically, it sounds like a wonderful idea.

A barley crusher/malt grinder is used for grinding barley in micro-brewery operations (enthusiasts brewing their own beer etc). It is a mini grinding mill, a unit operation designed to break a solid material into smaller pieces.

There are two main suppliers of relatively inexpensive barley crushers; Barleycrusher.com and Crankandstein.net

1. http://www.barleycrusher.com/

2. http://www.crankandstein.net/

Of the two I would recommend the Barleycrusher with the following specs:

· Roller assembly: 1,25” diameter x 5 “ length

· Models: 7 lb (3,2 kg) or 15 lb (6,8 kg), go with the 15 lb

· BC adjustment range: 0,015 to 0,070 thousands of an inch. Default set at 0,039. This is the way to fine tune your rollers, to adjust them so that you get finer powder etc.

· Rollers have: 12 TPI knurl

· Comes with a solid base with locators to center the Barley Crusher on a 5 gallon plastic pail. (Pail not included)

· The standard hopper holds 3,2 kg and the optional large hopper holds 6,8 kg. Using a 3/8 drillmotor at 500 RPM gives you a crush rate of 2,7 kg per minute

· The Barley Crusher is shipped fully assembled. There are no adapters needed to use a 3/8 drill motor.

· Cost: 15 lb variant, costs 115 USD with an additional 60 USD shipping

· A hand crank is included but it is advisable that you use a drill (you just fasten the drill bit where the hand crank used to be)

· You will also want a high quality drill with adjustable speed (cheap version drills may be just as good as long as they have an adjustable speed). You want to use a relatively low speed (150-200 RPM). However, you should test and confirm this as higher speeds may be viable. You should not select a battery drill as each battery will only have enough power for 10-12 kg of corn (prills) according to one forum source. Buy a second hand, high quality drill on your local online marketplace or ebay. Just keep in mind that the US voltage (110-120 V) is different from the European (220-230 V).

· Example drill: http://www.dewalt.no/powertools/productdetails/catno/D21520/

Grinding method 4 (not available)

Grist Mills for the crushing of barley or wheat are also effective (wind mill, water weel, motorized or by using an oxe). A ton of material can be processed through one this size in about two hours. To bad this method is not an option for 99,99% of us.

Дата добавления: 2015-05-31