UA119927U - METHOD OF PROCESSING GRAIN IRON IN GROUPS - Google Patents

Abstract

A method of processing millet grain into cereals, which involves the cleaning of the grain from impurities and water treatment, with the grain with a moisture content of not more than 14% is steamed at a steam pressure of 0.17-0.20 MPa for 4-6 min, dried to a moisture content of not more than 13- 14%, are crushed on one system of roller machines, the products of crushing are sorted in two stages - in the first in cereals dispenser remove flour and small particles of the kernel, in the second stage in air separators remove husk.

Description

The useful model belongs to the grain industry, in particular to methods of processing millet into grain products, specifically ground grain.

The method of millet production, which includes grain cleaning from impurities, hydrothermal treatment, drying, peeling, sorting and control of finished products, is the closest to the useful model that is claimed (see patent of the Russian Federation Mo 2115476 IPC VO2B 5/02 1996).

After weighing, the millet grain is sent to air separators for cleaning from impurities.

At the next stage, a threefold successive separation on sieves is carried out. Large impurities are removed from sieves of 4.0-4.5 mm on the first system and 3.0-3.5 mm on the third.

Small impurities are removed on sieves 1.6x20 mm or 1.5x20 mm. Additional extraction of small impurities is carried out in A1-BRU dispersers. Grain cleaned of impurities is sent to hydrothermal treatment, which is carried out using the method of cold conditioning. The grain is moistened with water to a humidity of 18-24 95. At this stage, the use of a moistening machine type AT1-BSHU-2 is assumed. After that, the grain enters the bunkers for dehumidification, which lasts for 9-12 hours. At the next stage, the grain is dried in a dryer at a temperature of the drying agent of 120-150 "C for 3.5-4.5 minutes and sent to husking. This stage is carried out in a roller deck machine with two decks of the DSHO-3 type. The circular speed of the roller is set to 15 .5 m/s. The mixture of peeling products for the extraction of husks is blown in aspirators and sent to screw press machines of the UT-BSHP type, in which the final extraction of shells and germ is carried out. on the control carried out in grain dispersers AT-BRU. Impurities and a small amount of unhusked grain are removed through sieves E 2.3-2.5 mm. Particles of crushed kernel are removed through sieve 2 1.6-1.7 mm The exit from these sieves is groats - millet, which is sent for control to two systems of aspirators, magnetic control, after which the groats enter the bunkers for finished products.

This method was chosen by the prototype.

The prototype and the claimed useful model have the following common operations: - grain cleaning from impurities; - hydrothermal treatment.

However, the known method involves a long duration and complexity of the technological process: the stage of hydrothermal treatment includes humidification and dehumidification for 9-12 hours, the need to dry the grain at a temperature of the drying agent of 120-150 "C, dehusking the grain in several stages, which requires significant production areas for placement of bunkers for dehumidification and additional technological equipment - humidifying machines and dryers, which causes difficulties in implementing this process at factories of low productivity.

The basis of a useful model is the task of developing a method of processing millet grain into groats, in which by eliminating husking, including the stage of hot grain conditioning and grinding into the technological process, as well as using millet of a certain grade, to ensure the simplification of the technological process by reducing the number of operations and their duration , as well as increasing the yield of finished products and expanding the assortment of millet processing products.

The task is solved in the method of processing millet grain into groats, which involves cleaning the grain from impurities and hydrothermal treatment, in that, unlike the prototype, grain with a moisture content of no more than 1495 is steamed at a steam pressure of 0.17-0.20 MPa for 4 -6 min, dried to a humidity of no more than 13-14 95, crushed on one system of rolling machines, the grinding products are sorted in two stages - in the first stage, flour and small kernel particles are removed in a grain separator, in the second stage, husk is removed in air separators .

The method is carried out in the following order. Cleaned from impurities, millet grain, for example, of the "Poltava Golden" variety, with a moisture content of no more than 14 95, is sent to steaming, which is carried out in a periodic steaming steamer of the PZ type at a steam pressure of 0.17-0.20 MPa for 4 minutes. After that, drying is carried out on vertical steam dryers of the BS type to a humidity that does not exceed 13-14 95 and sent for grinding. This operation is carried out on roller machines of the АTY-BZN type on corrugated rollers using one grinding system. Characteristics of the rollers for grinding: the number of grooves per 1 cm of the circle of the rollers is 4.5-5.0 pieces, the inclination of the grooves to the horizontal is 10-12 95, the speed of rotation of the rollers is 8-10 m/s, the relative location of the grooves is acute to acute, the ratio of roller speeds is 2.5. When grinding, set an inter-roll gap in the range of 0.6-0.Ф8 mm. The mixture of grinding products is sent to a grain spreader for sorting. Flour is removed by passing through metal woven sieves Mo 067. The output from this sieve is a mixture of crushed kernel and husk, which is sent to three successive systems of air separators or aspiration columns to extract the husk. The crushed core is controlled for the presence of metallomagnetic impurities and sent to packaging or to bunkers for finished products.

Example.

Received millet groats. For this purpose, millet grain of the "Poltava Golden" variety, with a moisture content of 12.5 956, cleaned of impurities, was sent to a batch steamer, where it was steamed at a steam pressure of 0.20 MPa for 6 minutes. The grain was dried in a dryer to a moisture content of 13 95 and sent to a rolling machine for grinding. The characteristics of the rollers: the number of grooves per 1 cm of the circle of the rollers is 4.5 pcs., the inclination of the grooves to the horizontal is 12 95, the rotation speed of the rollers is 10 m/s, the mutual arrangement of the grooves is acute to acute, the ratio of the speeds of the rollers is 2.5. When grinding, an inter-roll gap of 0.6 mm was set. The mixture of grinding products was sorted in a grain separator, where flour and small particles of the crushed core were removed by passing through metal woven sieves Mo 067. The mixture of crushed kernels and husks obtained by passing through the Me 067 sieve was sent to husk extraction, which was carried out by passing the mixture three times through an aspiration column. After that, the crushed kernel was characterized as crushed groats.

As a result of the processing of "Poltava Golden" millet grain into crushed groats, the total output of the product was 74 95, by-products and waste (including mechanical losses)

Claims (1)

- 26 95. USEFUL MODEL FORMULA The method of processing millet grain into groats, which involves cleaning the grain from impurities and hydrothermal treatment, which is characterized by the fact that the grain with a moisture content of no more than 1495 is steamed at a steam pressure of 0.17-0.20 MPa for 4-6 minutes, dried to a moisture content of no more than 13-14 95, grinded on one system of rolling machines, grinding products are sorted in two stages - in the first stage, flour and small kernel particles are removed in a grain separator, in the second stage, husks are removed in air separators. 0 Computer keyboardA. Kryzhanivskyi (00000000 Ministry of Economic Development and Trade of Ukraine, st. M. Hrushevsky, 12/2, m. Kyiv, 01008, Ukraine SE "Ukrainian Institute of Intellectual Property", str. Glazunova, 1, m. Kyiv - 42, 01601