RU2332468C1 - Method of production of granulated sugar with additives - Google Patents

Abstract

FIELD: sugar industry.

SUBSTANCE: method comprises supply of inoculating granules to granulation device containing rotating vertical cylindrical drum, with fixed blades radially installed therein and supplied with openings to supply hot air into layer of inoculating granules. Sugar syrup is introduced into the said layer in amount of 0.1-2.0 kg per 1 kg of granules and mixed. After their mixing with syrup, concentrated solution of fruit extract is sprayed in amount of 3-5% in conversion to dry substances. Sugar syrup is used with content of 80-85% of dry substances prepared from sugar sand.

EFFECT: improved quality of finished product and increased biological value.

1 ex, 1 dwg

Description

The invention relates to the sugar industry.

A known method for producing granulated sugar, comprising feeding seed granules to a granulation device, comprising a rotating vertical cylindrical drum and fixed blades radially located therein with holes for supplying hot air to the layer of seed granules, introducing sugar syrup into the specified layer in an amount of 0.1. ..2.0 kg per 1 kg of granules with stirring (RU 2181774 C1, C13F 3/00, publ. 04/27/2002). Granulated sugar is a product consisting of 90 ... 92% sucrose, which is 75 ... 85% in a crystalline state, and 10 ... 8% non-sugars, which are part of sugar beets or sugar cane.

This method does not allow to obtain a product of the required quality, since non-sugar, which is part of granulated sugar, has a specific, sometimes unpleasant taste.

The technical result of the invention is to improve the quality of the finished product and increase its biological value.

The achievement of this technical result in the proposed method for producing granulated sugar with additives is as follows. Sugar is dissolved in drinking hot water (80 ... 90 ° C) to a concentration of 80 ... 85% solids, and then sent for mixing with a crystalline seed, which is a layer of seed granules in the granulation device. After that, a solution of fruit extracts in the amount of 3 ... 5% in terms of dry matter is sprayed onto the granules formed. As additives, juices or extracts of apples, sea buckthorn, rose hips, etc. can be used.

The invention is illustrated by the drawing, which schematically shows the line where the proposed method is carried out. Sugar is loaded into a tinning collector (1), where hot water and steam are supplied. Steam is supplied in such an amount that the temperature of the syrup is 85 ... 90 ° C. Then the syrup is fed into the granulation device through a tube with holes (2) in a layer of moving seed granules located in a vertical cylindrical rotating drum (3). Initially, granulated sugar is used in the drum. In a steady state process, granular sugar is used as a crystal seed. Through a layer of moving granules into the motionless hollow blades (4) hot air with a temperature of 80 ... 100 ° C is supplied. To maintain the seed layer in a loose state, the amount of syrup supplied to the layer is 0.1 ... 2.0 kg per 1 kg of seed. The syrup is distributed in a thin film on the surface of the seed granules, sucrose crystallizes on the surface of the particles, moisture is removed, the size of the granules increases. Having reached a predetermined size, a granule having a certain tensile strength is destroyed under the action of forces from both neighboring granules and the blades of a mixing device. Thus, there is a continuous formation of new granules, and then their gradual growth. As new particles form, an increase in the height of the seed layer occurs. A certain volume of seed granules is constantly located in the working chamber. From the collection (5) for a concentrated fruit extract, a concentrated solution of fruit extracts in the amount of 3 ... 5% in terms of solids is sprayed onto the granules formed through the nozzle (6). Sugar syrup and sprayed fruit extract are fed continuously into the seed layer, and the granulated sugar-containing product is continuously discharged through the discharge pipe 7 in an amount equal to the mass of the supplied syrup and extract in terms of dry matter.

Example.

Sugar in the amount of 50 kg is dissolved in hot water to a solids content of 85%. Sugar syrup in the amount of 58.8 kg is sent to the seed layer of granules previously loaded into a rotating vertical, cylindrical drum of the granulating device. The amount of seed layer loaded into the drum is 25 kg. The amount of hot air supplied through three hollow blades to the granulator is 450 m ³ / h. The air temperature at the inlet to the granulator is 100 ° C, and at the outlet - 60 ° C. The consumption of syrup for granulation is 30 kg / h. The rotational speed of the drum with respect to the fixed blades is 9.5 rpm (0.44 m / s). On the granules formed, a rosehip extract concentrated to 30% is sprayed in an amount of 8.3 kg. The process of granulating the entire amount of syrup and spraying the extract takes 150 minutes. The result is 54.7 kg of granulated sugar, enriched with rosehip extract on the surface of the granules. Ready granulated sugar with additives is granules with a size of 3 ... 4 mm and a moisture content of 4%. At the same time, granulated sugar in the amount of 25 kg remains in the drum of the granulating device, which is used as a seed layer during the further process.

The proposed method allows to obtain granulated sugar enriched with fruit extracts and meets modern requirements for a healthy diet. This product can be used for industrial use in the production of confectionery and bakery products, as well as in rational and preventive nutrition.

Claims (1)

A method for producing granulated sugar, comprising supplying seed granules to a granulation device, comprising a rotating vertical cylindrical drum and fixed blades radially located therein with holes for supplying hot air to the layer of seed granules, introducing sugar syrup into said layer in an amount of 0.1-2 , 0 kg per 1 kg of granules with stirring, characterized in that the sugar granules after mixing them with syrup are sprayed with a concentrated solution of the fruit extract in an amount of 3 -5% in terms of solids, using sugar syrup containing 80-85% solids obtained from granulated sugar.