UA126221U - METHOD OF MANUFACTURING PLATED GROUPS - Google Patents

Abstract

A method of producing a flattened cereal involves cleaning the grain from impurities, steaming, flattening and drying. Wheat grains with a moisture content of not more than 14% are ground once, ground, divided into two fractions, a fraction with a particle size of more than 2.2 mm, additionally ground and controlled, after which the kernel of the large and small fractions is moistened to a moisture content of 15-17%, moistened 1.5-2.0 hours, steamed at a steam pressure of 0.15-0.20 MPa for 2-4 min, flattened to a thickness of 0.5-0.7 mm and sorted.

Description

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

The closest to the useful model that is claimed is the method of producing grain flakes, which includes cleaning the grain from impurities, steaming at a steam pressure of 0.1-0.2 MPa for 3-5 minutes until the humidity reaches 18-20 95, adding 3-5595 boiling water, tempering for 0.5-2.0 hours. to a humidity of 18-20 95, re-steaming at a steam pressure of 0.1-0.2 MPa for 3-5 minutes to a humidity of 25-27 95, drying in a "boiling" layer with air to a humidity of 23-25 96 and cooling to a temperature of 20 -25 70. The grain prepared in this way is subjected to husking, flattened and dried to a moisture content of 13-14 95. |see patent of the Russian Federation No. 2236151 А2ЗИ 1/164, 2004|.

This method was chosen by the prototype.

The prototype and the claimed useful model have the following common operations: - grain cleaning from impurities; - steaming; - flattening; - drying

The disadvantage of the technological process of the production of cereal flakes is the long duration of the stage of hydrothermal treatment of grain, which includes two-stage steaming of grain, its moistening with boiling water, drying, cooling, which requires significant production areas to accommodate the appropriate technological equipment, bunkers for dehumidification and tempering, drying equipment and causes difficulties in implementing this process at factories of low productivity.

The basis of a useful model is the task of developing a method for the production of flattened groats, in which by changing the regimes - the exclusion of steaming of grain, the introduction of one-time grinding of grain, grinding, additional one-time grinding of the coarse fraction of the crushed kernel, as well as the use of wheat of a certain grade, to ensure the simplification of the technological process due to reducing the number of operations and their duration.

The problem is solved by the fact that in the method of production of flattened groats, which includes cleaning grain from impurities, steaming, flattening and drying, unlike

From the prototype, wheat grain with a moisture content of no more than 14 95 is ground once, crushed, divided into two fractions, the fraction with a particle size of more than 2.2 mm, additionally ground and controlled, after which the core of the large and small fraction is moistened to a moisture content of 15-17 9 , moistened for 1.5-2.0 hours, steamed at a steam pressure of 0.15-0.20 MPa for 2-4 minutes, flattened to a thickness of 0.5-0.7 mm and sorted.

The method is carried out in the following order. Wheat grain cleaned of impurities, for example of the "Kuyalnik" variety, with a moisture content of no more than 14 95, enters operational bunkers. It is monitored for magnetic impurities and directed to grinding, which is carried out on the same system. For grinding, peeler-grinding machines of the ZSHN type are used, which work according to the principle of intensive abrasion of shells. The circular speed of the disks is set to 16...18 m/s. Reducing the speed of the disks will lead to insufficient removal of the surface layers of the grain when processing on one system, which will accordingly cause the need to increase the number of systems to two or three. An increase in the wheel speed will contribute to a more intense removal of the surface layers of the grain, which will lead to an increase in the number of by-products in the form of particles of crushed kernel and flour, while reducing the yield of the whole kernel and finished products. An increase in the yield of by-products will cause the need to expand the stage of sorting grinding products due to the installation of additional grain dispersers or sieve-air separators and aspiration columns.

The mixture of grinding products for the extraction of flour and small particles of the crushed kernel enters one system of air separators or aspiration columns. The polished core is crushed in roller machines with special cutting rollers or cut in a grain cutter. Sorting of grinding/cutting products is carried out in grain spreaders A1-

BRU. The goal is to obtain two fractions of the crushed core, the further processing of which is carried out in two parallel streams.

The coarse fraction is obtained by passing through sieves 9 2.2 mm, the fine fraction by passing through. Finely crushed kernel and flour particles are extracted through sieves 0 1.0 mm. The coarse fraction is sent to the grinding stage of the crushed core, which is carried out on the same system with the use of 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 14-16 m/s. A decrease in the circular speed of the discs will lead to insufficient removal of the surface layers when processing 60 on one system, which will accordingly cause the need to increase the number of systems to two

three An increase in wheel speed will contribute to a more intensive removal of surface layers, which will lead to an increase in the number of by-products in the form of particles of crushed kernel and flour, while reducing the yield of kernel and finished products. An increase in the yield of by-products will cause the need to expand the stage of sorting grinding products due to the installation of additional grain dispersers or sieve-air separators and aspiration columns.

Grinding products are sorted by passing the core twice through air separators or aspiration columns. After that, the core of the large fraction is sent to the hydrothermal treatment stage.

The core of the coarse and fine fraction is moistened to a humidity of 15-17 95, moistened 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 0.15-0.20 MPa, for 3-5 minutes. Before flattening, the core is tempered for 5-7 minutes. Flattening is carried out in roller machines on smooth or corrugated rollers with a working gap of 0.2-0.4 mm. Flattened products are sorted in a grain separator, where flour is removed by passing through a Mo 056 sieve, the output from this sieve is a flattened kernel, which is dried on belt dryers to a moisture content of no more than 14 95. When processing the coarse fraction, flattened groats Mo 1 are obtained, fine - Mo 2, which after magnetic control is sent to bunkers for finished products.

Example.

We got flattened groats. For this purpose, wheat grain of the "Kuyalnik" variety, with an initial moisture content of 12.5 96 and a weight of 2000 g, cleaned of impurities, was weighed on automatic scales and sent to grinding, which was carried out according to the principle of intensive abrasion of the shells on one grinding system. The circular speed of the disks was set at 18 m/s. The mixture of grinding products was sent to a system of aspiration columns, where flour and small particles of the crushed core were extracted.

The grinding stage of the polished core was carried out in a roller machine on corrugated rollers. Fractionation of grinding products was carried out in a disperser, where a coarse fraction was obtained by passing through sieves 0 2.2 mm, and a fine fraction was obtained by passing through these sieves. Finely crushed kernel and flour particles were extracted through 2 1.0 mm sieves. Grinding of the crushed core

From the large fraction, it was carried out on one system with the use of a peeling-grinding machine, which works according to the principle of intensive abrasion of shells. The wheel speed of the discs was set at 16 m/s. Extraction from a mixture of flour husk products and small kernel particles was carried out by passing through an aspiration column twice. After that, hydrothermal treatment of the core was carried out.

The core of the coarse and fine fraction was moistened with water to a humidity of 17 95, moistened for 2.0 hours. and directed to steaming in a batch steamer. The steam pressure was 0.15 MPa, the duration of steaming was 4 min. Before flattening, the core was tempered for 5 min.

Flattening was carried out in a roller machine on corrugated rollers with a working gap of 0.3 mm. Flattened products were sorted in a grain separator, where flour was removed by passing through a Mo 056 sieve, flattened kernels were obtained through the riser, which was dried to a moisture content of 14 95. When processing the coarse fraction, flattened groats were obtained Mo 1, small - Mo 2.

As a result of the processing of wheat of the "Kuyalnik" variety into flakes, the total yield of flattened groats Mo 1-4 Mo 2 was 69.8 95, by-products and waste (taking into account mechanical losses) - 30.2 vol.

Claims (1)

USEFUL MODEL FORMULA The method for the production of flattened groats, which includes grain cleaning from impurities, steaming, flattening and drying, which is characterized by the fact that wheat grain with a moisture content of no more than 14 95 is ground, crushed, divided into two fractions, the fraction with a particle size of more than 2 .2 mm, additionally polished and controlled, after which the core of the coarse and fine fraction is moistened to a humidity of 15-17 95, dehumidified for 1.5-2.0 hours, steamed at a steam pressure of 0.15-0.20 MPa for 2- 4 minutes, flatten to a thickness of 0.5-0.7 mm and sort.