(57) Abstract:The invention is intended for grinding of food products, in particular coffee. The grinder includes a housing with a grinding bowl. The working body and impeller are located on the motor shaft. The cover body has channels, and the impeller is located below the grinding bowl made of perforated material. The cover is made annular protrusion in the form of the upper half of a circular toroid and the labyrinth seal on the input channels. This eliminates the build-up of ground coffee on the sides and bottom of the grinding bowl. 1 Il. The invention relates to household appliances, designed for grinding food, in particular to the mills.A well-known coffee grinder (czernicki I. I., Potapov, I. L., Repair of household appliances and machines at home - M.: Mashinostroenie, 1992, S. 14), comprising a housing within which are located the grinding bowl and the motor, in the center of the bowl is a knife mounted on the motor shaft. On top of the bowl is closed by a cover.The disadvantage of this grinder is the difficulty of removal of ground coffee from the Cup due to it sticking to the sides and bottom.Closest in 95), comprising a housing with a grinding bowl, a shaft with a working body, impeller, located on the shaft inside the bowl and cover with ejector channels.The disadvantage of this grinder is the difficulty of removal of ground coffee from the grinding bowl because of his build-up on the sides and bottom.The objective of the invention is to eliminate the buildup of ground coffee on the sides and bottom of the grinding bowl.This objective is achieved in that in a coffee grinder, comprising a housing with a grinding bowl, a shaft with a working body, impeller, located on a motor shaft, and cover with channels impeller is located below the grinding bowl made of perforated material, and the cover is made annular protrusion in the form of the upper half of a circular toroid and the labyrinth seal on the input channels.The invention is illustrated by the drawing, which shows the proposed grinder.The grinder includes a housing 1 within which is located the motor 2 and the grinding bowl 3, made of a perforated material, such as a fine mesh or porous ceramics. Inside the bowl 3 through the protective seal 4 passes the shaft 5 of the motor 2, the end of which is fixed knife 6, the and is closed by a cover 9 channels 10, at the entrance which made the labyrinth seal formed by the annular projection 11 of the cover 9 and the annular groove 12 of the tube 13 is placed in the cover 9, the cover 9 is also made additional annular ledge 14 in the upper half of a circular toroid. On the side surface of the housing 1 is made holes 15.The grinder is as follows.The grinding bowl filled coffee beans, after which it is closed by a cover 9, and the motor 2 is energized. Rotating at high speed knife 6 carries out the grinding of coffee beans. Simultaneously, the rotation of the impeller 8 creates a flow of air entering into the housing 1 of the grinder through the holes 15. through the perforation of the grinding bowls 3 comes inside her and blows away ground coffee with its walls and bottom. Removing air from the cavity of the bowl through the channels 10 in the cover 9. The labyrinth seal inlet channels 10 formed annular protrusion 11 on the cover 9 and the annular groove 12 on the tube 13, prevents the emission of coffee powder from the bowl 3 through the channels 10 of the cover 9. In addition, when the grinder due to the centrifugal forces of the grinded coffee climbs the walls of the bowl 3 and using toroidal Intego seal on the lid 9.Performing the grinding bowl made of perforated material, the location of the impeller 8 under the bowl 3 provide continuous sduw ground coffee from the walls and bottom of the bowl 3, thereby eliminating it from sticking and providing ease of removal of coffee from the grinder after grinding.Additionally, the presence of the circular toroidal protrusion 14 on the lid of the grinder and intensive air flow inside the Cup 3 provide continuous stirring coffee in the grinding process than contribute to the reduction of time grinding and improve the quality of the finished coffee. Coffee grinder, comprising a housing with a grinding bowl, a shaft with a working body, impeller, located on the shaft, and the cover of the channels, wherein the impeller is located below the grinding bowl made of perforated material, and the cover is made annular protrusion in the form of the upper half of a circular toroid and the labyrinth seal on the input channels.
FIELD: food industry.
SUBSTANCE: group of inventions relates to coffee industry. Coffee milling is performed by introducing particles of a roasted coffee precursor and introducing particles of soluble coffee into milling chamber, jetting a gas into milling chamber to increase, by means of glass flow, speed of coffee particles in chamber. Product is obtained, containing 10 % to 70 % of dry weight of roasted coffee precursor and 30 % to 90 % of dry weight of soluble coffee, by milling, through injecting gas into milling chamber and increasing speed of particles of roasted coffee precursor and soluble coffee in milling chamber, particles of roasted coffee precursor using self-collision and through collision of soluble coffee particles with particles of roasted coffee precursor inside milling chamber. Particles of roasted coffee precursor at step of introduction of particles are characterised by temperature from 5 to 30 °C. Ground and blended coffee product is characterised by dry Helos particle size distribution D90 less or equal to 40 mcm. Use of ground and blended coffee product to include in at least one container suitable for use in combination with machine for beverage preparation, for example, a flexible capsule made at least partially from filtering material, or rigid, semirigid or flexible cartridge, made essentially of air- and water-impermeable material. Method for beverage preparation includes a step of mixing milled and blended coffee product with water-containing liquid, preferably with hot water.
EFFECT: group of inventions enables to reduce size of particles of roasted coffee without negative effect, which is manifested by early extraction of coffee oils of roasted coffee precursor, absorption by soluble coffee of a certain quantity of coffee oils, introduction of roasted milled coffee with small-size particles into a dried frozen soluble coffee product provides a darker colour, which is visually reminiscent of roasted ground coffee.
21 cl, 17 dwg, 13 tbl