SU908307A1 - Method of producing groats from grains with strong adhesion between flower membrane and nucleus - Google Patents

Description

one

The invention relates to large-scale production and can be used in the production of coarse grain from large crops, in which flowering casings have firmly grown together with cores, such as, for example, sorghum and barley.

The closest to the proposed technical essence and the achieved effect is a method of producing grain from grains with a durable accretion of the floral shell with the core, in particular barley, including sieve-air cleaning of grain from impurities, its peeling, grinding by rubbing the grains together and about the emery surface of the working body with obtaining grits and grading of grits. by size 1J

The known method makes it impossible to use the whole barley grain endosperm, which is 82-87% of the grain. The output of the pearl barley obtained with this technology is only kO%,

Of these, cereals No. 1 + (f 2 - 28%, tf 3 + № - 10;, G 5 - 2%,

The main disadvantages that hinder the increase in yield and quality improvement of cereals when using the known method are as follows.

The duration and lack of effectiveness of the separation process of flowering films, carried out by the method of striking the grains on the emery surface of the working body of the peeling machine, is considerable. The product obtained after four times flaking of the barley grain (pensack) contains about 50 crushed grains and 20251 grains with a retaining floral film. A product with such a high content of unbroken grains requires a long and intensive subsequent processing;

no operation of dividing the foam into fractions by size and degree of processing. This leads to what is in the mass of Pensac

in the process of intensive six-time processing, the split kernels are first transformed into small numbers of cereals, and then they are worn out in a pile and are discarded. Whole barley grains with flowering films preserved on them, being in the mass of the treated grains do not receive the desired effect, are poorly processed and particles of the flowering film remain on the surface until the end of the technological process (in croup No. 1 and No. 2 the content of flowering films is allowed (nedodira) 0,7) |

The resulting mass of cereals, consisting of grains of various sizes (from number 5 to number 1 and larger), is poorly sorted, resulting in low coarseness evenness (80 |), which negatively affects the ary type of cereal and its variability.

The purpose of the invention is to increase the yield of cereals, improve its quality, reduce the production process and expand the range of produced cereals.

The goal is achieved by the fact that in the method of making cereals from grain with a strong intergrowth of the floral shell with a core, including sieve-air cleaning of the grain from impurities, its peeling, grinding by rubbing the grains together and making the grains and sorting the grains coarseness, peeling of the grain is carried out by friction of the grains together and on the emery surface of the working body with simultaneous air blowing, with a speed that ensures the release of the shell from the mixture, after Wheat grain is divided into two fractions according to the degree of processing, and each fraction of flaked grain is subjected to grinding separately.

The drawing shows a flowchart of a method for sorghum

The method is carried out as follows.

Sorghum grain is subjected to airborne cleaning from large, small and light impurities. Purified sorghum is sent for peeling. Peeling is carried out by rubbing the grains together and on the emery surface of the working body with intensive simultaneous blowing with air in order to separate

shells - flowered films (I shelling system),

The resulting product, consisting of a mixture of unsheathed, husked sorghum grains and formed by the shearer as a result of friction, is separated by sifting on sieves with apertures of 3.8 and 1.5 mm in diameter.

The product obtained by withdrawing from a sieve with holes of 3.8 mm in diameter and consisting mainly of grains with a preserved floral film is subjected to secondary treatment by friction with intensive air blowing (II scrubber system).

A product obtained by passing a sieve with holes of 3.8 mm in diameter and coming off from a sieve with holes of 1.5 mm in diameter, consisting of kernels released from flowering films, is combined with a similar product after the second peeling system. The product obtained by passing through a sieve with openings with a diameter of 1.5 mm is sent to the dough.

The separation of the peeling products after the second peeling system is carried out in a similar way, but with the difference that a small amount of the sorghum sorghum remaining after the secondary peeling is sent for processing to the same system. Obtained by peeling the husk (flowering film) is sucked by air in the peeling process without additional lashing.

The peeled product is divided into 2 fractions by size by sieving on sieves with openings with a diameter of 3 mm.

Each fraction of the grain of the sorghum is ground by itself, using the method of friction without air npojcjyBaHMH, 4To softens the effect of emery paGof. whose surface is on the grain, since the grinding process is carried out in the presence of the resulting sand.

The fractional grinding method allows a more precise setting of the processing mode and facilitates a more uniform degree of processing of each grain separately, and the entire mass of the product.

Claims (1)

Grinding products of each fraction is carried out by sequential twofold treatment. After each grinding system, the product is drilled for release from the dough. Obtained after the second grinding systems and released from the flour 2 streams, the grains are not mixed, but are subjected to separate sorting into 3 size numbers: Kpyrty ff 1 is obtained by passing through a sieve with holes of a diameter of 3.8 mm and a descent from a sieve with holes of 3,0 "M to the croup No. 2 - with the passage of a sieve with a diameter of 3.0 mm and a descent from the sieve with a diameter of 2.5 mm; croup No. 3 passage of a sieve with a diameter of 2.5 mm and descent from a sieve with a diameter of 1.5 mm Grade ff 1 and no. 2 is a well-polished grain of sorghum. The croup has a round shape and white color. Groats number 3 are large pieces of crushed white core. Cooking time of cereal Nf 1 55 min, cereal Vf 2 - CO min min, cereal fP 3 30 min. Weight weld. - 3,6C, Kashi have a semi-crumbly consistency and good taste. Features of the proposed method. provide the following effect: the use of the method of friction with intensive air blowing when peeling grain of sorghum reduces the process of separating flowering films and two peeling systems. At the same time, in a product aimed at grinding, the content of unshelled grains is 2–3%, and crushed - 10-P, the separation of the product after the initial peeling into 2 fractions (descent from the sieve by holes with a diameter of 3.8 mm and passing this sieve) allowed subject to secondary peeling only a large fraction of grain (gathering), containing 60b5 grains with a preserved floral film. The fine grain fraction (the passage has only 1-t, 5 unshelled grains and reprocessing with friction is impractical j fractionation of the unshelled product into 2 fractions before grinding and self-sustaining 9 76 processing of each fraction made it possible to reduce the process of separation of fruit and seed shells Up to 1 systems (2 systems for the coarse fraction and 2 systems for the fine fraction) the use of the grinding method without grinding with air during grinding allowed the output of sorghum bean to be increased to 53–5%; Separately for each fraction, each grinding system, as well as sorting the finished cereals, increases the degree of evenness of sorghum grains in sizes up to 90-91. EFFECT OF THE INVENTION shelling, grinding by rubbing the ground together and on the emery surface of the working body to produce grits and grading the grits into pieces, characterized in that, in order to increase the yield, its quality, reduction of the technological process of production and expansion of the range of produced cereals, peeling of grains are carried out by friction of grains together and on the emery surface of the working body with simultaneous air blowing at a rate ensuring the release of the shell from the mixture, after peeling the grain is divided into two fractions according to the degree of processing, and grinding is subjected to each fraction of the flaked grain separately. Sources of information taken into account in the examination 1. Rules of the organization and separation of the technological process at large enterprises, TsNIITEI Goskomzag USSR, Moscow, 19b7, p. 102