UA120926U - A METHOD FOR THE PROCESSING OF GRAIN MINE IN A PLUSHEN GROUP - Google Patents

Abstract

The method of processing millet grain into flattened cereals involves cleaning the grain from impurities, water treatment, peeling, sorting of peeling products, flattening, sorting of products of flattening and drying. The grain with a moisture content of not more than 14% peel on the system of roller mill machines in two stages: on the first - in the machine with two decks, on the second - the machine with one deck, grind once, moisten to humidity 16-18%, moisten 1.5 -2.0 hours, steamed at a vapor pressure of 0.17-0.22 MPa for 4-6 minutes and flatten at a gap of 0.4-0.5 mm.

Description

The useful model belongs to the cereal industry, in particular to methods of processing millet into cereal products, specifically flattened cereals.

There is a known method of producing flakes from non-traditional raw materials, which includes cleaning millet grains from impurities, fractionation, soaking, dehumidification, steaming, tempering, drying, cooling, peeling, sorting of peeling products, flattening, sorting of flattening products and drying of flakes (see RF patent Mo 2519737 IPC A2ZI. 1/164 of 2012).

The millet grain is cleaned of impurities in a separator, fractionated and directed to soaking, adding 7-995 of water and moistening for 0.5-3.0 hours. until the grain reaches a humidity of 18-22 95. At the next stage, the grain is steamed in a steamer at a steam pressure of 0.1-0.4 MPa for 2-8 minutes. until the grain reaches a humidity of 24-30 96, it is also possible to steam at a steam pressure of 0.1-0.4 MPa for 3 minutes. after which the pressure is released and the grain is tempered in the steamer for 2-8 minutes. The grain is dried in a "fluid layer" to a humidity of 23-25 96 and cooled to a temperature of 20-25 "C, as a result of which the flower films dry quickly and crack. After that, the grain is husked with the removal of the flower films and flattened on a threshing machine. The flattening products are sieved and dried to a humidity of 11-14 95.

This method was chosen as the closest analogue.

The closest analogue and the claimed useful model have the following operations in common: grain cleaning from impurities; hydrothermal treatment; shelling; sorting of peeling products; flattening; sorting of flattening products; drying.

The disadvantage of the technological process of the production of flakes from non-traditional raw materials is the long duration and complexity of the stage of hydrothermal treatment, which includes soaking the grain in water, dehumidification, steaming, drying and cooling, which requires significant production

From the areas for placing containers for soaking, dehumidification, dryers and cooling columns and will cause difficulties in the implementation of this process in plants of low productivity.

The useful model is based on the task of developing a method of processing millet grain into flattened groats in which, by excluding from the scheme the stage of hydrothermal treatment of grain and including additional operations - grinding of the core and hydrothermal treatment of groats, as well as the use of millet of a certain grade, to ensure the simplification of the technological process due to reducing the number of operations and their duration.

The task is solved by the fact that in the method of processing millet grain into flattened groats, which includes grain cleaning from impurities, hydrothermal treatment, husking, sorting of husking products, flattening, sorting of flattening products and drying, according to a useful model, grain with a moisture content of no more than 14 95 is peeled on a system of roller deck machines in two stages: in the first - in a machine with two decks, in the second - a machine with one deck, sanded once, moistened to a humidity of 16-1895, dehumidified for 1.5-2.0 hours, steamed at steam pressure of 0.17-0.22 MPa for 4-6 minutes. and flattened with a gap of 0.4-0.5 mm.

The method is carried out in the following order. Cleaned from impurities, millet grain, such as the "Poltava Golden" grade, with a moisture content of no more than 1495, is sent to the shelling, which is carried out on one system of roller deck machines with two decks. The husking mode is set so as to obtain 95 husked grains after the 89-93 system. The mixture of peeling products is controlled by passing through a system of air separators or aspiration columns, in which the husk, flour and particles of the crushed kernel are extracted. Hulled and unhulled grain enters a step-hulling system, which uses roller deck machines with one deck. The dehusking mode is set so as to obtain 95-99,956 dehusked grain after the ladder system. The mixture of peeling products for the extraction of husk and flour is sent to one system of air separators or aspiration columns.

The whole core is sent for grinding, which is carried out in peeling-grinding machines that work on the principle of intensive abrasion of shells of the ZShN type. The circular speed of the disks is set at 16-18 m/s. The mixture of grinding products to remove flour, crushed kernel particles and a small amount of husk is passed through two systems of air separators or aspiration columns. The polished core is moistened to a humidity of 16-18 95, dehumidified for 1.5-2.0 hours. and sent to vaporization, which is carried out in periodic vaporizers of the PZ type at a steam pressure of 0.17-0.F22 MPa for 4-6 minutes.

The core prepared in this way is subjected to flattening, which is carried out on flattening or rolling machines on smooth or corrugated rollers. The ratio of the circular speeds of the rollers during flattening is set to 1, the gap between the rollers is 0.4-0.5 mm. The mixture of flattening products is sent to the grain separator for sorting, where flour and small particles of the crushed kernel are removed by passing metal woven sieves Мо 1, 2. From these sieves, flattened groats are obtained, which are dried on belt dryers to a moisture content of no more than 14 95.

The obtained groats are checked for the presence of metallomagnetic impurities and sent to packaging or to bunkers for finished products.

Example.

We received flattened groats. For this purpose, millet grain of the "Poltava golden" variety, with a moisture content of 13.3 96, cleaned of impurities, was sent for peeling, which was carried out in two stages. On the first one, the grain was husked by passing it through a rolling deck machine with two decks.

The amount of husked grain in the mixture after husking was 92 95. The mixture of husking products was sent to an aspiration column, in which the husk, partially flour and small particles of the crushed kernel were extracted. Whole hulled and unhulled grain was sent to a step-down hulling system, which was carried out on a roller deck machine with one deck. The amount of hulled grain in the mixture after hulling was 98 95. The mixture of hulling products for the extraction of husk and flour was directed to airing on two systems of aspiration columns. After that, the core was polished in a peeling-grinding machine, which works according to the principle of intensive abrasion of the shells. The circular speed of the disks was set at 18 m/s. The mixture of grinding products was passed through an aspiration column, removing flour, crushed kernel particles and a small amount of husk from the mixture at this stage. The whole polished core was sent to the stage of hydrothermal treatment, which was carried out according to the combined scheme of cold and hot conditioning. At the first stage, the kernel was moistened to a humidity of 18 95 and moistened for 2 hours. After that, steaming was carried out in a batch steamer at a steam pressure of 0.20 MPa for 4 min. and directed to flattening, which was carried out in a rolling machine on corrugated rollers. The ratio of the circular speed of the rollers was set to 1, the inter-roller gap - 0.4 mm. The mixture of flattening products was sent to a grain spreader for sorting. Mo 1, 2 was extracted by passing through metal woven sieves

From the flour and small particles of the crushed kernel, the output from these sieves was a flattened grain, which was dried in a dryer to a moisture content of 14 95.

As a result of the processing of "Poltava Golden" millet grain into flattened groats, the total yield of the product was 68 95, by-products and waste (including mechanical losses) - З2 9.

Claims (1)

USEFUL MODEL FORMULA A method of processing millet grain into flattened groats, which includes grain cleaning from impurities, hydrothermal treatment, husking, sorting of husking products, flattening, sorting of flattening products and drying, which is characterized by the fact that grain with a moisture content of no more than 14 95 is husked on the system rolling deck machines in two stages: on the first - in a machine with two decks, on the second - a machine with one deck, sanded once, moistened to a humidity of 16-18 95, dehumidified for 1.5-2.0 hours, steamed at a steam pressure of 0 ,17-0.22 MPa for 4-6 minutes. and flattened with a gap of 0.4-0.5 mm.