RU21031U1 - FEED GRINDING DEVICE - Google Patents

Abstract

A device for grinding feed containing a crushing chamber with a deck and a loading nozzle of grain material, a rotor and an unloading screw located below it, a separation chamber connected to the crushing chamber by a pipe equipped with a louvre grate inside it that adjoins the deck elements and has the ability to simultaneously rotation with them, characterized in that the device is additionally equipped with a roughage feeder adjacent to the crushing chamber perpendicular to the axis of rotation of the rotor and containing m feeding device and prepress device, and an adjustment flap installed in the lower part of the separation chamber with the possibility of overlapping the loading nozzle of the grain material.

Description

DEVICE FOR GRINDING FEED

The utility model relates to devices for grinding feed, namely to hammer crushers, and can be used in agricultural production and feed industry.

A device for grinding either coarse or concentrated feed, working without recirculation of the material, containing a crushing chamber with a perforated screen installed in it, a loading nozzle, a feed for roughage, a rotor and an unloading screw is known. (Kulakovsky I.F., Kirpichnikov F.S., Reznik E.I. Machines and equipment for the preparation of feed: Part 1 Handbook. -M.: Rosselkhozizdat, 1987.-p. 154.)

The disadvantage of this device is that the use of perforated surfaces around the perimeter of the rotor does not allow timely discharge of the finished product, due to the low throughput of the grind. The presence of a circulating load in the crushing chamber increases energy consumption.

A device for grinding concentrated feeds, working with the recycling of material, containing a crushing chamber with a loading nozzle, a rotor and a deck and an unloading screw in series below it, as well as a separation chamber connected to the crushing chamber by a curved pipe with working bodies installed inside it along the length of curved louvre grille with pivoting wings. (USSR author's certificate No. 1747153 MKI 4 V 02 S 13/02, 1992)

The disadvantage of this device is the limited functionality, namely, the device is intended only for grinding concentrated feed.

The inventive utility model is aimed at solving the following problem of expanding functionality.

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IPC in 02 with 13/00 The specified problem is solved due to the fact that the device for grinding

feed containing a crushing chamber with a deck and a loading nozzle, a rotor and an unloading screw located below it, a separation chamber connected to the crushing chamber by a pipe equipped with a louvre grill inside it but adjacent to the deck elements and able to rotate simultaneously with them, additionally equipped with a roughage feeder adjacent to the crushing chamber perpendicular to the axis of rotation of the rotor, and an adjustment flap installed in the lower part of the separation chamber with the possibility of Strongly overlapping boot fitting.

This design solution of the device for grinding feed allows you to expand the functionality by installing a feeder for roughage, thereby the workflow can be organized on the principle of grinding concentrated and roughage with recirculation of the material. The installation of an adjustment flap in the lower part of the separation chamber is necessary for the separation of the loading nozzle so as to ensure the supply of both grain material from the loading hopper to the crushing chamber and a large fraction for regrinding during grinding of concentrated feed, and the complete opening of the loading nozzle in order to exclude its clogging when grinding roughage.

Using the proposed device for grinding feed allows you to organize the working process of grinding concentrated and roughage with recycling of the material.

Figure 1 shows a device for grinding feed, the working process is organized according to the principle of grinding concentrated feed; figure 2 presents a device for grinding feed, the workflow is organized according to the principle of grinding coarse feed.

The device for grinding feed consists of a crushing chamber 1 with a loading nozzle 2, inside of which a rotor 3 is located. Under the rotor, a deck 4 and an unloading screw 5 are arranged sequentially. Above the crushing chamber there is a loading hopper of grain material 6 and a separation

a chamber 7 equipped with a filter 8 for venting excess air, a coarse fraction return channel 9 and an adjustment flap 10 located in the lower part of the separation chamber 7. A curved pipe 11 is adjacent to the crushing chamber 1, the discharge screw 5 and the separation chamber 7. A louver is located inside the curved pipe 11 grill 12 with pivoting flaps that are adjacent to the elements 13 of deck 4. In addition, the crushing chamber 1 is perpendicular to the axis of rotation; the rotor 3 is adjoined by a roughage feeder 14, containing jupe; her fixture 15 and prepress; her device 16,

A device for grinding feed works as follows; in a way.

Grinding coarse and concentrated feed is drained; it is carried out with recirculation of the material. When grinding concentrated feeds, the adjusting flap 10 of the separation chamber 7 is set to the position providing the supply of grain material from the loading hopper 6 through the loading nozzle 2 to the crushing chamber 1, where grinding occurs as a result of repeated interaction of the rotor hammers 3 with the elements 13 of deck 4. Small particles resulting from the grinding of a less durable part of the processed material are sifted through the gaps between the elements 13 and fall into the unloading screw 5, the rest of the grinding products are thrown out of the chamber 1 into the curved pipe 11. In the space between the inner wall of the curved pipe 11 and the louver grid 12 creates excess pressure. Air, entraining small particles, begins to gush through the gaps between the shutters of the louvre grille 12, after which the air is discharged through the filter 8 to the outside. Small particles under the influence of gravity and gravitational forces are released from the air-product mixture, fed to the discharge screw 5 and removed from the installation. When turning the shutters of the louvre grille 12, their angle of inclination and the gap between them changes. Changes the resistance to the passage of air flow through the gaps between the leaves of the louvre lattice 12, it

speed, and therefore, the number and size of the carried out particles of the material. Large particles with high kinetic energy, and part of the air flow continue to move along a curved path between the shutters of the louvre grille 12 and the inner wall of the curved pipe 11 and are sent through the return channel 7 of the large fraction and the loading pipe 2 to the crushing chamber 1 for regrinding.

When grinding coarse feed into flour, part of the deck 4, in the feed zone of coarse feed into the crushing chamber 1, is removed, the shutters 12 of the separator 11 are closed, and the adjustment flap 10 installed in the lower part of the separation chamber 7 completely opens the loading pipe in order to prevent it from clogging chopping coarse feed. Grinding of coarse feed into flour is carried out using a coarse feed feeder 14, which feed device 15 captures the feed, moves it and with the help of the pressing device 16 in the form of a roll directs to grinding. As a result of repeated interaction of the hammers of the rotor 3 with the elements 13 of the deck 4, grinding occurs. Small particles resulting from the grinding of a less durable part of the processed material are sifted through the gaps between the elements 13 and fall into the unloading screw 5. The rest of the grinding products are discharged from the chamber 1 into a curved pipe 11, into the space between the inner wall and the louvre grill 12. Excess air is discharged through the filter 8 to the outside, and coarse material through the coarse fraction return channel 9 and the loading nozzle 2 enters the crushing chamber 1 for regrinding.

The use of the proposed device for grinding concentrated and roughage in the agricultural production and the feed industry will significantly increase throughput and reduce energy consumption due to lower circulating load in the crushing chamber, as a result of the organization of the working process with material recycling.

Claims (1)

A device for grinding feed containing a crushing chamber with a deck and a loading nozzle of grain material, a rotor and an unloading screw located underneath it, a separation chamber connected to the crushing chamber by a pipe equipped with a louvre grate inside it that adjoins the deck elements and has the ability to simultaneously rotation with them, characterized in that the device is additionally equipped with a roughage feeder adjacent to the crushing chamber perpendicular to the axis of rotation of the rotor and containing m feeding device and prepress device, and an adjustment flap installed in the lower part of the separation chamber with the possibility of overlapping the loading nozzle of the grain material.