UA127965U - PRODUCTION OF WHOLE GRAIN PRODUCTION - Google Patents

Abstract

A method for the production of whole-core flour includes impurity purification, crushing and sorting of crushing products. Grain with a moisture content of not more than 14% is sorted to obtain two fractions, peeled once and ground using two irradiation systems and entolytes.

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 C1, IPC A2ZI 7/10, VO2B 1/08, VO2O 9/04, publ. 27.01.2006).

Buckwheat grain is cleaned of characteristic impurities, sorted into three fractions and sent to the hydrothermal treatment stage. At the first stage, the buckwheat grain is moistened to 24-30 965 and dehumidified for 4-8 hours, after which thermal 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 the 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 includes a long duration and complexity of the technological process: carrying out the stage of hydrothermal treatment includes moistening the grain followed by its dehumidification and carrying out a special thermal treatment by a convective-conductive method, in which the grain is heated at a temperature of 160-190 "С, the husking of the grain is carried out in three streams , which requires large production areas for the placement of bunkers and special technological equipment and causes difficulties in implementing this process at factories with low productivity.

Zo There is also a well-known method of barley flour production, which includes cleaning the grain from impurities, hydrothermal treatment, grinding and sorting (see RF patent Mo 2245192, IPC VO2S 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 exit is 4.2 obtained during sorting is returned for re-grinding.

The passage of the Ye 42 sieve and the exit of the Mo 08 sieve are directed to aspiration, after which they are crushed on three shredding and three grinding systems to flour, which is obtained when sifting through the passage of the Mo 27 kapron sieve. The yield of flour is 69-72 95.

This method was chosen as a prototype.

The prototype 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 hydrothermal treatment includes moistening and dehumidifying the grain for 18-20 hours, roasting, which requires the use of special technological equipment, which requires significant production areas for placing bunkers and appropriate technological equipment and causes difficulties in the implementation of 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 hydrothermal 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 simplification technological process by reducing the number of operations, their duration and increasing the yield of finished products.

The task is solved by the fact that in the method of production of flour from whole grains, which includes cleaning from impurities, grinding and sorting of grinding products, according to a useful model, 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 2 4.0 mm, a fine fraction is obtained through sieves 2 4.0 mm and Ж 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 a 2 3.8 mm sieve passage, the husked whole and crushed kernels are removed, the exit of the sieve 0 4.0 is returned to the husking 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...0.02 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 output from this sieve after the first second step is directed to the next crushing system, after the second second step - the remainder 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 sieve 0 4.0 mm, sieve 2 4.0 mm and sieve 9 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 the passage of 2 3.8 mm sieves, 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 inter-roll gap was adjusted after each second stroke: 1st stroke - 0.4 mm, 2nd stroke - 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 processing 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 95.

Claims (1)

USEFUL MODEL FORMULA The method of production of flour from the whole kernel, which includes cleaning from impurities, grinding and sorting of grinding products, which is characterized by the fact that the grain with a moisture content of no more than 14 95 is sorted to obtain two fractions, once dehulled and ground using two shredding systems and entoleators.