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Let CAMAS International Specific Gravity Fluidized Bed Specific Gravity Density Separators make that happen for you!!Do you want ….

Overview

Camas International is the manufacturer of a new line of high-tech machinery which can substantially increase the efficiency and profitability of a wide range of agribusiness activities, including flour milling. Based on patented technology developed by Dr. Arthur Zaltzman, an internationally renowned scientist and engineer, our machines create a fluidized bed to sort, clean and upgrade all types of grains, oilseeds, pulses and nuts.

The Camas separation technology is so precise that particles with density differences as small as 2% can be separated. At this level of precision it is possible to remove mycotoxin-contaminated kernels, foreign matter and other undesirable materials usually missed by other cleaning equipment. Our unique sorting ability also provides a powerful tool for quality control and product formulation. In contrast, gravity tables require density differences of at least 13% to operate; but healthy and contaminated products rarely exhibit density differentials of this magnitude. As a result the Camas separator can operate with a far lower reject rate, saving up to 25% more good product from rejects than alternative equipment.

Principle of operation

The Camas separator uses fluidized bed technology for very precise separation of agricultural commodities. Although the physics of fluidized beds have been used for several decades, it was not used for separation of materials. The technology needed for separation, for which patents have been granted by thirty countries, has been developed by Camas. The application of this technology has been proven in facilities in ten countries, on machines which have run thousands of hours.

Many types of commodities can be separated in the Camas machine, but the principles are the same for each. Using wheat as an example, micro jets of air are forced through the bed of a chamber loaded with wheat . With the addition of vibration, the wheat then behaves like a dry liquid. The chamber is sloped slightly, allowing the fluidized wheat to flow to the lower end. Light, less dense kernels float to the top of the grain mass while the more dense particles sink down.

At the end of the chamber the dry liquid stream is divided by a valve. The light particles, which consist of diseased, damaged, and underdeveloped kernels plus light foreign material, are removed from the top of the stream as rejects. The heaviest particles, which are the healthiest and most dense, are sent to the good product hopper. The intermediate particles are sent on to the next chamber for further separation. Another chamber designed specifically for removal of heavy impurities removes up to 99% of heavy impurities.

The Camas separation technique is so precise that particles with density differences as small as two percent can be separated. This is far more accurate than the 13% density difference required by gravity tables, the most widespread cleaning equipment currently in use. The two percent difference is sensitive enough to remove mycotoxin-infected kernels from healthy grain. This has been proven for corn, wheat, peanuts, beans, rice, sunflower seeds, soybeans, pecans, almonds, and peas. It is also precise enough to do many other types of separation never before possible.

1-Product enters this 7 degree sloping chamber and

is fluidized5- Dockage Exits

6 Good product exit

7-Middle layer goes into conveyor and on to channel #2.

8-Product re-circulates in narrower #2 channel for even more precise final processing

2-Blower suppliesair to this Plenum.

3-Tuned, balanced, vibratoryMotors combine with air to “Fluidize” product.

4-Product stratifies into multiple layers as it flows down the #1

channel.

Best dense product flows underthis horizontal cut plate.

“Mids” or middle density productflows between these cut platesto be recirculated and refluidized

Dockage leaves channel aboveupper horizontal cut plate.

How a CAMAS Works

Discharge end of slopedchambers

1

2

Blow up of Discharge end

Bed in Action

Features & Benefits

Although the Camas separator is the most accurate high-capacity machine on the market, it can actually save on operating expenses by replacing several pieces of less efficient equipment, saving valuable floor space as well as lowering maintenance costs.

Because of the precisely controlled air distribution system that is used to fluidize the product stream, the dust control system requires far less CFM of air than traditional air legs, concentrators, sifters, gravity tables and de-stoners.

The combined savings from increased product yield, lower operating costs, and lower air requirements for dust control adds up to a significant competitive advantage for owners of the Camas separator, and a quick payback on the machine, usually six to fifteen months!!

UndesirablesGeneral

Goat grass Cheat grass Morning Glory Insect Damage Rodent

Droppings Wild Garlic Frost Damage Sprouted

Kernels Shrunken

Kernels Other Foreign

Materials Removal of

Glass and Stones

Wheat or Durum

Ergot Fusarium(scab

) Vomitoxin

Corn Aflatoxin Fumonisin

Soybeans Secondary de-

hulling

Barley Ergot Vomitoxin

Oats Oat/Groat

separation

Application for Wheat

The Camas SV Series is the best high-capacity wheat cleaning machine on the market. The SV4-8 can clean up to 1000 bushels of wheat per hour with better quality and lower reject rates than competing equipment. As a result, one Camas separator can often replace several less efficient cleaning machines. One elevator operator reports that "this one piece of equipment is doing twice as much production as our former screen cleaner and gravity table combined." Another user stated that "a single Camas machine has replaced a Buhler de-stoner, three grading machines and three gravity tables.” Specific applications of the Camas separator with wheat include:

A. General Cleaning (including garlic): The Camas separator is unparalleled in the removal of all types of foreign material from wheat including wild oats, wild weed grasses, frost damaged, sprouted, and shrunken kernels, wild garlic and insect damage. In recent tests the Camas separator has removed over 90% of wild garlic bulbs from previously uncleaned wheat. In one test garlic bulbs per 1,000 grams declined from 289 to 1!!!

Applications for Wheat

B. Heavy Impurities Removal/De-stoner:The optional heavy impurities chamber of the Camas Separator is the most accurate de-stoner available, regularly achieving rates of 98-100%. In a recent head-to-head test, the Camas separator outperformed a traditional gravity de-stoner by more than four to one. The heavy impurities chamber is also extremely effective at removing glass, metal, and other impurities often missed by simple de-stoner.

C. Deoxynivalenol (vomitoxin):The Camas Separator has repeatedly proven its ability to effectively reduce vomitoxin levels in wheat with low reject rates.

In recent tests vomitoxin was reduced from 2.6ppm to 1.3ppm with a reject rate of only 0.5%, and severely contaminated wheat from the 1996 crop was cleaned from approximately 12ppm to under 4ppm with a reject rate of only 5%.

Applications for wheat

Quality Control and Sorting Capabilities:The multi-chamber configuration of the Camas separator provides the flour miller with unique capabilities to maintain quality control and sort his raw material input streams by important quality characteristics such as protein and test weights. For example, the output from the heavy impurities chamber and the accepts from the number one channel are consistently of superior quality.One Camas owner takes these two streams and sends them directly to a special bin to produce a premium quality product required by one of his customers.The combined savings from increased product yield, lower operating costs, and lower air requirements for dust control adds up to a significant competitive advantage for owners of the Camas separator, and a quick payback on the machine, usually six to fifteen months!!

E. Weed Seeds & Grasses:The Camas separator has proven its ability in the removal of weed seeds and grasses. The Camas separator can remove offensive grasses such as jointed goat grass, cheat grass and morning glory seed, with a much lower reject of good product than traditional equipment.

Corn Milling Applications

VI. Corn Milling Applications

The Camas International fluidized bed small density separator is revolutionizing the operations of major U.S. corn millers. By dramatically improving product quality, increasing throughput capacity and yields the Camas separator can lower both initial and working capital costs.

A. Cleaning of #4 Corn Grits: The most widely used application is in cleaning the processed #4 grits to remove foreign material such as ironweed, beeswings, germ, bran and heavy impurities. The Camas is used as a final cleaner in this part of the process. One miller reports the heavy impurities removal of the Camas separator had more stones being rejected than their previous equipment. They were astonished at how many stones and other heavy impurities their old equipment missed. With the Camas separator our customers achieved their goals of lowering their inventory of processed grits by

increasing throughput. Prior to the installation of our machine they had 4.0 million bushels of grits in storage. Within three months this inventory of processed material was down to 1.2 million bushels. They said that the Camas increased capacity and quality to meet their goals, and drastically cut their working capital requirements.

Corn Cleaning Applications

One of the millers that purchased our machine said that using the Camas in this part of his process has given him a clear competitive advantage in quality and capacity.

B. Front End cleaning:Another application is the original one for which the machine was designed:. cleaning the whole corn coming out of the bin into the facility. Because of its high capacity and accuracy, the Camas separator far outperforms traditional equipment. In most cases the only equipment required in the cleaning of raw corn out of the bin to remove cob, foreign materials and heavy impurities is an air screener and the Camas separator. This greatly reduces the amount of equipment and space in the cleaning house of a corn mill. It also greatly reduces the amount of dust control air required in this part of the process. Also, the Camas is being installed after a series of Rotex machines to clean the rejects off these machines. Instead of having to buy multiple gravity tables and de-stoners one Camas separator will do the job of four to six machines.

C. Grits, Germ, & Bran Separation:in the US. They will be using multiple machines in the separation of fine grit, germ, bran and coarse grit, germ and bran into separate streams. Because of the difference in density between these products, our technology works very efficiently. Using the Camas to do this separation eliminated the need for nine air separators normally used to remove the bran. The accuracy and capacity of the grit germ separation is much greater than traditional equipment. Elimination of nine air cleaners in this process drastically reduced the amount of air required for dust control

Cleaning Aflatoxin infected grain

Aflatoxin, known as a powerful carcinogen, is a by-product of the fungus Aspergillus Flavus which infects corn kernels nearing maturity in the field and in storage after harvest when conditions are right for propagation of the fungus. Because of health concerns for both animals and humans, discovery of the substance in a corn crop results in severe economic losses for producers.

In the past, mechanical removal of infected corn kernels was impractical and uneconomical because traditional equipment relied on differences in friction co-efficient or shape to effect separation. Screens or sizing equipment are not effective because infected kernels are approximately the same size as healthy kernels. Gravity tables which rely on differences in friction co-efficient as much as differences in specific gravity are rarely able to separate products with density differences less than 13% while at the same time rejecting up to 25% of favourable product.The accuracy of the Camas density separator now makes mechanical removal of Aflatoxin economical. During actual operations on infected corn at Hondo, Texas in 1992, the Federal Grain Inspection Service reported the reduction of the level of Aflatoxin in corn from 180 parts per billion (PPB) to 16 PPB. Only 7.25 % of the corn was removed in the process, compared to over 25% reject from traditional gravity tables which were still unable to lower the Aflatoxin level to less than 20 PPB.

Cleaning Aflatoxin infected Grain

In the United States, corn for human consumption cannot contain more than 20 PPB of Aflatoxin (in Europe the limit is only 1 PPB). The limit in feed corn for cattle is 300 PPB. Farmers with Aflatoxin contaminated corn often have no alternative other than selling their production at a sharply discounted price or destroying their corn. Now, the Camas separator can provide a profitable alternative for producers and processors of corn. For example, in Texas during August 1995 the Camas separator was able to reduce Aflatoxin levels from over 600 PPB to under 250 PPB, and from 80-100 PPB to less than 20 PPB.

Rice Cleaning

The Camas density separator is the best machine on the market for cleaning and sorting rice. It has a broad range of applications in the rice milling and processing industry including:

General cleaning of foreign materials from rough rice

Separation of underdeveloped grain from mature rice

Separation of damaged and broken grains in parboiled rice

Removal of bran and impurities remaining in milled rice

Removal of stones, glass, and all types of heavy impurities from both rough and milled rice

Rice Cleaning

Reclamation of whole and broken rice from hulls

To test the cleaning capabilities of the Camas separator, one of the largest U.S. food companies placed exactly twenty small pieces of grey glass in a large sample of their milled rice. Other cleaning machines could not remove the glass, but the Camas separator found and removed all 20 pieces. Independent customer tests have proven that the Camas separator is unparalleled for removing stones, glass and metal from food commodities. The Camas separator can operate with a far lower reject rate, saving up to 25% more good product from rejects than alternative equipment. The Camas Separator can pay for itself in as little as six months! After installing the Camas separator, a major California rice miller stated that "This machine is excellent at removing types of impurities that other equipment could not!"

Different Configurations

Different Models/Different CapacitiesStationary models ONLY

Mobiles and Liberators have SV-4-8.

ScalperSemi-Precision

2 channels Less Expensive

Precision 3 channels Saves the most

grain

Heavy Impurity Channel

4x more effective than any other de-stoner on market

Rice or Sunflowers

Model SV-4 Series Most Popular 1 K Bu/Hr

Model SV-5 Series 300 Bu/Hr

Model SV-6 Series 2-3 K Bu/Hr

Model SV-7 Series 18-20 K Bu/Hr

Model SV-8 Series 6 K Bu/Hr

Model SV-9* 4-5 K Bu/Hr Scalper Only

Profile of Dr. Arthur Zaltzman

Dr. Arthur Zaltzman, President & CEO of Camas International, combines a strong academic background with extensive product development experience in the area of agricultural separation technology. Having received his Doctorate of Science from the Byelorussian Academy of Science in 1967, Dr. Zaltzman subsequently held research positions at such institutions as the Agricultural Research Organization of Israel, the University of Georgia, and Idaho State University. He is recognized internationally for his contributions to this field which are well documented by his work to date: 36 articles, 6 patents and 18 symposium presentations. He is the recipient of numerous research grants and his work has been highlighted by the national news media, such as Newsweek Magazine, and professional journals. Dr.Zaltzman served as Executive Vice President of Sorting Technology, Inc. (STI), a manufacturer of potato cleaning equipment. STI is a licensee of certain patents developed by Dr. Zaltzman for the Agricultural Research Organization (Volcani Institute) of Israel. Dr. Zaltzman has broad international business experience and has developed business relationships in Western and Eastern Europe, the Middle East, Asia, Canada, and Latin America. Under his leadership Camas International received a 1995 International Business Award for excellence in export from the State of Idaho. In making the selection the Awards Committee cited Camas as having "an impressive growth record and significant potential for future growth". This award was presented to Dr. Zaltzman at the World Trade Days on May 16th, 1995 by Governor Phil Batt.Dr. Zaltzman is a member of various engineering associations, including the American Society of Agricultural Engineers, and is further recognized in the World Biographical Guide of Scientists and Engineers and Who's Who in Science.