UA126225U - PRODUCTION OF WHOLE GRAIN PRODUCTION - Google Patents

Abstract

A method for the production of whole grain flour, which implies the removal of impurities, crushing and sorting of crushing products, whereby the grain with a moisture content of not more than 14% is sorted to obtain two fractions, peeled and crushed once with the use of two abrasive systems and entoleiters.

Description

The useful model belongs to the grain industry, in particular to methods of processing buckwheat grain into grain products, specifically whole grain flour.

A known method of buckwheat flour production, which includes grain cleaning from impurities, fractionation, moistening, dehumidification, heat treatment by convective-conductive method, cooling, peeling, sorting of peeling products and grinding | see patent

RF Mo 2268615 А2ЗИ, 2004|.

Buckwheat grain is cleaned of characteristic impurities, sorted into three fractions and sent to the water-heat treatment stage. At the first stage, the buckwheat grain is moistened to 24-30 95 and dehumidified for 4-8 hours, after which heat treatment of the moistened grain is carried out at a temperature of 160-190 "С for 2-3 minutes. The grain is cooled and directed to husking, which is carried out in rolling machine. Hulling products are sorted in two stages: in the first stage, the husk is removed in aspiration columns, in the second stage, flour is removed in a grain sorting machine and the husked and unhusked grain is separated. The unhusked grain is returned to husking, the whole husked and crushed kernel is sent to grinding Buckwheat flour is obtained by sifting through a Mo 35 sieve, the residue on the sieve should not exceed 5 95. The yield of flour is 78 95.

The analogue and the claimed useful model have the following common operations: - grain cleaning from impurities; - peeling; - sorting of peeling products; - grinding; - sorting of grinding products.

However, the known method involves a long duration and complexity of the technological process: carrying out the stage of water-heat treatment involves moistening the grain, followed by its dehumidification and carrying out a special heat treatment by the convective-conductive method, in which the grain is heated at a temperature of 160-190 "C, the grain is husked by three flows, which requires significant production areas for placement of bunkers and special technological equipment and causes difficulties in implementing this process at factories of low productivity.

There is also a well-known method of barley flour production, which includes grain cleaning from impurities, water-heat treatment, grinding and sorting | see patent of the Russian Federation No. 2245192 IPC VO02S 9/04 2005...

Barley grain is cleaned of impurities, moistened to a humidity of 21-22 95 and dehumidified for 18-20 hours. The grain prepared in this way is roasted at a temperature of 210-220" for 2-3 minutes, while the moisture content of the grain is reduced to 8-9 95. After roasting, the grain is ground in a rolling machine. The grinding products are sorted by size in a spreader. The sieve output is 4, 2, obtained during sorting, is returned for re-grinding.

The passage of the sieve 2 4.2 and the exit of the sieve Mo 08 are directed to aspiration, after which they are ground on three shredding and three grinding systems to flour, which is obtained when sifting through the passage of kapron whitefish Mo 27. The yield of flour is 69-72 9.

This method is chosen as the closest analogue.

The closest analogue and the claimed useful model have the following common operations: - grain cleaning from impurities; - grinding; - sorting of grinding products.

However, the known method involves a long duration and complexity of the technological process: carrying out the stage of water-heat treatment involves moistening and dehumidifying the grain for 18-20 hours, roasting, which requires the use of special technological equipment, which requires significant production areas for the placement of bunkers and the appropriate technological 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 of producing flour from whole grain, in which by eliminating water and heat treatment, reducing the grinding stage (grinding grain using four shredding systems instead of three shredding and three grinding systems), as well as using buckwheat grain of a certain grade , to ensure the simplification of the technological process by reducing the number of operations, their duration and increasing the yield of finished products.

The task is solved in the method of production of flour from the whole kernel, which involves cleaning from impurities, grinding and sorting of grinding products because, unlike the closest analogue, grain with a moisture content of no more than 14 95 is sorted to obtain two fractions, once dehulled and crushed using two torn systems and entoleitors.

The method is carried out in the following order. Cleaned from impurities, buckwheat grain with a moisture content of no more than 14 95, enters the operational bunkers in one stream. After that, sorting is carried out in the grain spreader with the allocation of large and small fractions. A coarse fraction is obtained through sieves E 4.0 mm, a fine fraction is obtained through sieves 2 4.0 mm and sieve 2 3.3 mm. After fractionation, the grain enters the husking in two parallel streams. This technological operation is carried out in rolling machines with rubberized rollers or in rolling deck machines. The mixture of peeling products of both fractions is sorted in two stages. At the first stage, it is passed through two systems of air separators, the main purpose of this stage is to remove aerodynamically light impurities - flour and husk. At the second stage, the mixture of husked and unhusked grain is sorted in a grain separator, where when sorting the coarse fraction through the passage of sieves E 3.8 mm, the husked whole and crushed kernels are removed, the exit of the sieve E 4.0 is returned to the dehusking system for the coarse fraction. When sorting the fine fraction, the shelled whole and crushed kernels are removed through a 3.1 mm sieve, the output from these sieves is returned to the fine fraction peeling system. Flour during sorting of both fractions of grain is obtained by passing through metal woven sieves Mo 080. Removed at the stage of sorting the dehusking products, the dehusked whole and crushed kernels of both fractions are combined and sent for grinding. This stage is carried out in rolling machines with the use of two shredding systems (dr. c). The ratio of roller speeds on all systems is 2.5; circular speed of rollers - 3.5 m/s; placement of corrugations - point by point, the number of corrugations per 1 cm of the roller surface, depending on the system, should be from 4.0 to 8.0 pcs. The inter-roller gap is adjusted after each other p. in the range of values of 0.4-0.2 mm. After each torn system, additional grinding in the entoleator is provided. Sorting of grinding products is carried out after each grinding system. Grain spreaders are used for sorting. Flour is selected by passing sieves from Mo 056 to Mo 090 on each sorting system. The exit from this sieve after the first dr. p. directed to the next shredding system, after the second dr. p. - the rest is buckwheat bran. At the final stage, control of the received flour and bran is carried out, after which they are sent to packaging.

Example.

We got whole grain flour. For this, buckwheat grain cleaned of impurities with an initial moisture content of 13.6 956, weighing 2000 g, was weighed on an automatic scale and sent to a grain separator, in which the grain was separated into two fractions. The coarse fraction was obtained by passing sieves 2 4.0 mm, passing through sieves 2 4.0 mm and passing 2 3.3 mm - fine fraction.

At the next stage, the grain was fractionally sent to the shelling, which was carried out in a rolling machine. The mixture of peeling products was first passed through two systems of aspiration columns. At the same time, husk and flour were removed from the mixture. After that, in the grain disperser, when sorting the coarse fraction through a 3.8 mm sieve passage, the shelled whole and crushed kernels were removed. Unhusked grain was obtained by sifting through a 2 3.8 sieve, which was returned to the hulling system for the coarse fraction. When sorting the fine fraction, the shelled whole and crushed kernels were removed through a 2-3.1 mm sieve, the output from these sieves was returned to the fine fraction peeling system. During the sorting of both grain fractions, flour was removed by passing through metal-woven sieves Mo 080. The peeled whole and crushed kernels of both fractions were combined and sent to grinding, which was carried out using two shredding systems (dr. s.) in rolling machines. The ratio of roller speeds on all systems was set to 2.5; circular speed of rollers - 3.5 m/s; placement of corrugations - point by point, the number of corrugations per 1 cm of the roller surface, depending on the system, was from 4.0 to 8.0 pcs. The interroller gap was adjusted after each second step: And second step. - 0.4 mm, II dr. p. - 0.2 mm. Additional grinding of grain after each grinding system was carried out in an entoleator. Product sorting was performed after each grinding system. Grain spreaders were used for sorting.

Flour was selected by passing a Mo 090 sieve on each system. East from this sieve after the first, other p. entered the next shredding system, after the second dr. p. - the rest was buckwheat bran.

As a result of the processing of buckwheat grain into flour from whole grain, the total yield of the finished product was 69.4 95, by-products and waste (taking into account mechanical losses) - 30.6 9.

Claims (1)

USEFUL MODEL FORMULA The method of producing flour from whole grain, which involves cleaning from impurities, grinding and sorting of grinding products, which is characterized by the fact that grain with moisture no more 14 95 are sorted to obtain two fractions, peeled and ground once using two shredding systems and entoleators.