RU2502450C2 - Uhf inductive installation for grain micronisation - Google Patents

Abstract

FIELD: food industry.

SUBSTANCE: invention relates to farm industry, in particular, to fodder production. UHF induction installation for grain micronisation has a table with a working surface made of stainless steel with serially arranged generator units mounted over it. Embedded between the units are screen plates. Induction plates are positioned under the table working surface so that the UHF radiators and the inductors forming the vertical chamber aligned along a vertical axis. Positioned inside the working chamber on the working table surface is the upper branch of a scraping transporter limited with aluminium boards on the sides. Used for the transporter drive are drive star wheels positioned outside the working chamber and a gear motor. All the functional elements are positioned within a common screen body containing a feed-in bin and a receptacle bin.

EFFECT: invention usage will allow to enhance grain treatment quality.

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Description

 The invention relates to agriculture, in particular to feed production.

 A known installation for heat treatment of grain raw materials UT3-4 (Micronizer) [1], designed for heat treatment of feed grain by infrared exposure. The installation includes a working chamber with a conveyor belt, with adjustable speed. There are infrared lamps above the conveyor. The disadvantage of this installation is the high energy costs.

 Known installation for micronization of feed VTM-02 [2]. The installation is characterized by the location of IR emitters above the conveyor and also has high energy costs.

 Known small-sized microwave installation for heat treatment of crops M3-1 (Micronizer-1) [3], which combines convective heating with exposure to electromagnetic field energy of ultrahigh frequency. At the same time, energy costs also remain high.

 The closest analogue is the installation for micronization of grain, which contains between the belt-mounted microwave generators, an infrared emitter. A radio-transparent box is connected through the working chambers, connected to a loading hopper and to a dish-shaped dispenser [4].

 The technical result consists in improving the quality of processing with reduced energy costs.

 The specified technical result is achieved by the fact that a table with a stainless steel working surface, on top of which successive generator blocks are installed, between which screen plates are mounted, and under the working surface of the table there are corresponding induction plates so that microwave emitters and inductors forming the working chamber, aligned along the vertical axis, while inside the working chamber on the working surface of the table is the upper branch of the scraper conveyor, aluminum bounded on the sides bubbled sides, wherein the drive sprocket disposed outside the processing chamber and the motor-reducer, with all the functional elements are in general screen housing comprising a boot and a receiving hopper used to drive the conveyor.

 Figure 1 presents a diagram of a microwave induction installation for micronization of grain: 1 - microwave generator blocks, 2 - emitter from a magnetron, 3 - working surface of a table made of stainless steel, 4 - scraper conveyor, 5 - induction cookers, 6 - inductor, 7 - a working chamber, 8 - sides, 9 - a drive sprocket for a scraper conveyor, 10 - an unloading window with a receiving hopper, 11 - a first screen case, 12 - a common screen case, 13 - grain, 14 - a loading hopper.

 Figure 2 presents a diagram of the process of micronization of grain: 1 - microwave generator blocks, 2 - emitter from a magnetron, 3 - the working surface of the table made of stainless steel, 4 - scraper conveyor, 5 - induction cooker, 6 - inductor, 7 - working chamber, 8 - sides, 11 - the first screen case, 12 - the common screen case, 13 - feed grain, 14 - loading hopper.

 Microwave induction installation for micronization of feed grain (1, 2)

includes microwave generator blocks 1 with a radiator 2 from a magnetron. Generator blocks are arranged sequentially above a horizontal plane, i.e. above the working table 3. On the working table 3, made of stainless steel, there is a scraper conveyor 4. On the underside of the working table 3, induction plates 5 are mounted so that the inductors 6 (working elements of the induction plates) are located opposite the corresponding emitters 2 of the microwave generating units 1 A working chamber 7 is formed between the generating units and induction plates, through which the scraper conveyor 4 moves. The distance between the working table 3 and the generating unit 1 is greater than the height of the conveyor scraper 4 and is equal to A quarter of the wavelength (wavelength 12.24 cm). Between the generator blocks 1 there are screen plates 11. These plates 11, generator blocks 1, boards 8 on both sides of the scraper conveyor 4 and the surface of the working table 3 form the working chamber 7. The scraper conveyor is driven by a gear motor through drive sprockets 9. B At the end of the scraper conveyor 4 there is an unloading window with a receiving hopper 10. The size of the unloading window is less than a quarter of the wavelength. All generator blocks and induction cookers are located under a common screen housing 12. The working chamber is completely closed by an aluminum housing - screen 12. The feed grain 13 is fed into the working chamber from the feed hopper 14. Microwave generator blocks 1, induction cookers 5.6, scraper conveyor 4 are functional elements.

Microwave induction installation for micronization of grain works as follows. From the feed hopper 14, feed grain enters the scraper conveyor 4 after it is turned on. They include microwave energy sources 1 (generator blocks) and induction cookers 5. The induction cooker 5, due to the inductor 6, heats the working surface of the table 3. Then, the feed grain 13 is transported along the working surface of the table 3 at a certain speed. During the movement of feed grain through the working chamber 7 there is a sequential impact on him from the source 2 of the electromagnetic field of the microwave range and conductive heating. In the working chamber, endogenous and conductive heating of feed grain occurs throughout the volume, intensively. In the "capsule" of the grain, water is transferred from a liquid state to a vapor state. Overpressure formed in the "capsule" of the grain leads to an "explosion", i.e. micronization of grain. At high temperatures (on the order 85 ... 100 ° ^C) and due to high pressure inside the grains there is a mechanical failure. The grain structure becomes more porous, loose. Starch is partially converted to dextrins and sugars, which are more easily absorbed by the animal’s body. The density of the caryopsis decreases, the content of water-soluble substances increases, which positively affects the organoleptic properties. Along with this, there is a complete destruction of both external and internal microflora. The thickness of the feed grain layer is controlled using a drum dispenser located in the receiving hopper. Micronized grain is discharged using a scraper conveyor into the discharge hopper 10 through the unloading window 9. When moving feed grain using a scraper conveyor, the bead 8 prevents scattering. The common screen housing 12 and aluminum plates 11 between the generator blocks prevent the negative impact of the microwave electric field on the staff. The circular motion of the scraper conveyor 4 is carried out by a gear motor and drive sprockets 9. Microwave blocks, aluminum sides, and the working surface of the stainless steel table form a resonator chamber. Microwave units are installed above the working surface of the table so that the capacity of the resonator chamber is reduced several times, which allows increasing the electric field strength of the microwave range, instead of 100 ... 300 V / cm, to 1 ... 5 kV / cm. Such a high electric field allows disinfecting feed grain, i.e. destroy the bacterial microflora of the vegetative form. The gap between the generator unit and the working surface of the table is matched by a factor of a quarter of the wavelength. Doses of exposure to electromagnetic fields of ultra-high frequency on the grain and induction heating of the working surface of the table are regulated by the power of the corresponding source.

 Information sources

1. http: // pcstart. com / equipment / utz.html.

2. http: //www.rezonans-npk. ru / page.php? id = 7.

3.http: //tniis.ttn.ru/style2.html.

4. Patent No. 2389418. Installation for micronization of grain. Posted: 05/20/2010 Bull. Number 14.

Claims (1)

Microwave induction installation for micronization of grain, characterized in that it has a table with a stainless steel working surface, on top of which are installed sequentially located generator blocks, between which screen plates are mounted, and under the working surface of the table there are corresponding induction plates so that microwave emitters and the inductors forming the working chamber are aligned along the vertical axis, while the upper branch of the scraper transport is located inside the working chamber on the working surface of the table the rails bounded on the sides by aluminum sides, with drive sprockets located outside the working chamber and a gear motor used to drive the conveyor, while all functional elements are located in a common screen housing containing a loading and receiving hopper.

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