SU733723A1 - Method of producing pearl-barley - Google Patents

Description

one

The invention relates to the field of large-scale production and can be used in the production of pearl barley.

A wet method of processing barley is known, including moistening the grain, peeling, grinding, sorting the fine fraction and flour, while the grain is moistened by 2.5-6.0% followed by 15-25 minutes soaking.

This method is coupled with a significant moistening of the peripheral layers of barley grain, with the result that the shells that are removed during the peeling process have a high moisture content (31-34%), which makes it difficult to continue the process. To bring the shells to a moisture content of 17-20%, it is required, according to the recommended method, to exfoliate the husked grain and the shells together, or to dry them with heated air, according to the recommended method. The method is furthermore associated with increased water consumption. The process flow diagram does not occur. In addition, the wet peeling method barley recommended by the authors.

only tied it to a new design of the peeling machine.

There is also known a method for producing pearl barley grits, including moistening the grain, peeling, ischifovanie, sorting fine, fractions and flours stepwise polishing and sorting the mixture obtained by m 2.

ten

As a result of grain processing on. conventional peeling machines produce pensac.

This pensac has a content of unbreakable grains 15–25%, the content of crushed grains is about 50% (with the requirements of the Rules for organizing and conducting the technological process in large enterprises, the content of unbroken grains in pensack 20 is not more than 5%, and the crushed - no more than 50%).

The output of pearl barley, obtained with this technology, is

25 only 40% of them

№ 1 + № 228%

 3 + 410%

№ 52%.

The known technology allows using only 40-45% of endo30.

the sperm of the grain, while its weight is 63-73%.

The aim of the invention is to increase the yield of cereals and reduce the process of its production.

For this, according to the proposed method, the grain is moistened for 8-10 minutes after moistening, moistening is carried out at 5%, and after each polishing stage the fine fraction and flour are additionally separated from the grits.

After each polishing stage, it is advisable to select the separation of the fine fraction by passing the sieve No. 21,

According to the proposed method, a change in the management of the technological process consists in the fact that instead of sequentially treating the entire mass of pensac in machines with ours: dacha organs, in which the resulting small numbers of cereals are abraded into the feed torment, intermediate selection of cereals No. 3, 4.5 s is introduced each system, starting with W grinding; No. 2, starting with 1 polishing system. Food flour, which is used for the production of cereals of increased nutritional value, is also taken from polishing systems - Strong, Southern, Naval

Improving the output of cereals also contributes to the smoothing of the original grain of barley by 1.0-1.5%, followed by 8-10 minutes of sweating before peeling. The recommended moisturizing of the barley provides, with subsequent desquamation, its production of high-quality pensak with a content of unbroken grains of 4-6% and chipped 10-12%. The use of such pensak in combination with the proposed method of its processing into grits provides an increase in the total yield of barley grits by 13% and an additional selection of 3% food barley flour.

It should be noted that an increase in the overall yield of cereals occurs simultaneously due to an increase in the yield of both large and small numbers of cereals.

The drawing shows a flowchart of processing barley into pearl barley by the proposed method (the processes of preparing barley for peeling are not shown).

The proposed method for producing pearl barley is carried out as follows. .

The original barley is cleaned according to the conventional technology of triple separation, cleaning of mineral impurities in stone-collecting machines. Then barley cleared of impurities; moistened with cold water () at 1.2% and oi volatile for 9 minutes. With

This creates moisture gradients between the barley shells and the endosperm. More hydrated shells than endosperm. After sweeping, the moisture content of barley sent for processing at an initial moisture level of 12.3% is 13.4%. This barley is subjected to double peeling in a scouring machine with an abrasive surface.

Humidified shells are more easily separated from the grain when peeling, and the crushability of the weevil is significantly reduced. The pensac obtained after flaking almost contains few unbroken grains, and consists of grains, almost entirely free of flowering membranes. Its output is increased by 3% compared with the traditional method, the high-ash, dark-colored feedstuff is poorly formed, since wetted shells do not wear out, but are converted into husk. The resulting mixture of pensack and husk is vented in a duaspirator to separate the husk. The moisture content of the husk after seeding is 12%, in connection with which it does not need additional drying and can be sent in this form without additional processing to the production of animal feed.

In order to obtain cereals, pensac is ground by treating it three times in the ZSH machines.

The mixture of grinding products after the last grinding system is screened on sieves with 2: 5 openings. The mixture of pearl barley grains of the following numbers is selected: 3, 4 and 5. A large product obtained by SKODO1L with a sieve with 2.5 mm openings is further processed by polishing car zshn. The mixture of the product after the 1st polishing system is sieved on sieves 3.0 to select a mixture of pearl barley No. 2; 3; four; 5. The passage of the sieve 27 take barley flour.

A large product obtained by withdrawing from a sieve with openings H, 0 mm; They are again sent to the next polishing system, after which pearl barley of all numbers and flour are extracted by sieving.

During the grinding and polishing operations of pensac, the aleurone layer, an endosperm rich in protein, passes into the flour. Flour has a white color, its ash content is 0.9-1.0%. A mixture of pearl barley, obtained after the third grinding, the first and second polishing systems, is subjected to separation according to the size numbers, sweeping and magnetic control.

The technology of processing barley into pearl barley, including opera-

pre-wetting of the grain and the intermediate selection of small grains, tested in semi-production conditions of the VNIIZ stand equipped with a barley processing line.

The verification of the method showed its full suitability and expediency of use in creamery plants producing pearl barley.

During the production of cereals according to the proposed method, the possibility of a significant reduction in the technological process of its production was revealed: by reducing the number of skips of barley grain through emery scouring machines (2 instead of 4), as well as by reducing the grinding system by 1-2 and eliminating the process of crushing pensak.

The yield of cereals of all numbers is increased by about 13%, more than 3% of food barley flour is additionally selected.

Claims (2)

1. The method of production of pearl barley, including moistening of grain peeling, grinding, sorting of the fine fraction and flour, stepwise polishing and sorting the resulting mixture of cereals into fractions characterized in that, in order to increase the yield of cereals and reduce the process of its production, the grain after moistening is subjected to evaporating for 8-10 minutes by 1.01, 5%, and after each polishing stage, the fine fraction and flour are additionally separated from the grits. 2. The method according to claim 1, wherein the separation of the fines after each step of the extraction is carried out on a sieve 27. Sources of information taken into account in the examination 0 1. Protocol Mirgorod IIA number 20 (395) -71 - 1971. 2. Rules of organization and management of the technological process 5 large enterprises. Ed. IINTI M., 1967, p. 39, 102-103.