SU1748728A1 - Fodder crusher - Google Patents

Abstract

The invention relates to agriculture, in particular to devices for grinding feed. The purpose of the invention is to increase productivity. The grinder includes a housing 1 with a loading 2 and a discharge 3 mouths. Inside the housing 1 is placed the grinding chamber 4 with 3 FIG. 7 by a crushing rotor 5, a grate chamber 10 and a sieve or deck separating them, devices 15 and 16 for loading fibrous forage 11 bulk materials, a knife chopper 22 and antithearing knives 23 placed between the device 15 and the rotor 5. The knives 23 are set obliquely along the way rotating the rotor 5 at an angle to the radius of 0.28 rad. The working surface of one of the sieves is made in the form of zigzag slots alternating with circular apertures. The material is fed into the chamber and the loader 15 is fed from the hopper 16, crushed by knives 23, captured by the rotor 5 and, after further grinding, is discharged through the neck 3. 3 sludge. (/) From 2 00 XI to 00

Description

The invention relates to agriculture, in particular to devices for grinding feed, such as green mass, succulent and coarse feed, grain-bearing mixture and corn cobs of high humidity, as well as grain.

The purpose of the invention is to increase productivity.

1 shows the proposed feed chopper (longitudinal section); figure 2 - section aa in figure 1; on fig.Z - working surface of the deck and sieve,

The grinder contains a housing 1 with a loading 2 and a discharge 3 mouths. Inside the housing is placed a grinding chamber 4 with a crushing rotor 5 equipped with grinding elements 6 interacting with fixed 7 opposing elements fixed on an annular deck 8 replaced by one of sieves 9 dividing a rotor with a grating chamber 10, in which blades 11 are fixed on the rotor disk, and distribution vanes 12 of Deca 8 on the hub have a window 13 connecting the working cavity 14 with the discharge neck 3. Feed of the product is connected via devices 15 and 16 for loading fiber feeds and bulk solids, respectively. Device 15 is a conveyor belt, in the discharge part of which a slope board 17 is provided, equipped with a gate 18 for removing solid foreign matter, and device 16 is a bulk material hopper provided with an adjustable damper 19 by means of an actuator 20 and mounted rotatably around an axis 21 to form with one of the sides with the outer surface of the conveyor 15 Anala for the passage of crushed stalked food.

Between the device for loading the fiber feeds 15 and the rotor 5 on the same axis there are two rows of rotating knife shredders 22 interacting with opposing knives.23 mounted obliquely during the rotation of the rotor 5 at an angle to the radius equal to 0.28 rad.

The working surface of one of the replaceable sieves 9 is made in the form of zigzag slots 24 alternating with circular apertures 25.

The grinder works as follows.

Depending on the type of feed to be ground, the hopper 16 is placed in the appropriate position. If the grain is to be crushed, the bunker is installed in a vertical position, the shutter 19 is actuated by the actuator 20 at the desired dose of the product, a sieve 9 is installed in the grinding chamber with a surface in the form of zigzag slots 24 alternating with round holes 25 (if dry corn ears are to be crushed) conveyor 15 at this time does not work. The rotor 5 is driven to rotate.

0 The material enters through the filling port 2 into the grinding zone. Having traveled from the loading neck 2 along the perimeter of the sieve 9, the product is ground by rubbing against the sieve surface.

5 Next, the product under the action of centrifugal forces and velocity head enters the grate chamber 10, where, by means of blades 11, the crushed finished product is ejected through the neck 3.

0 When chopping stalk-like feeds, hopper 16 is rotated counterclockwise through an angle of 90 / (shown by dotted lines) and fixed in this position in a known manner. The sieve 9 is replaced by deck 8, the shutter 18 is opened. When the conveyor 15 is operating, stalked feeds are fed to the loading neck 3, and solid foreign inclusions fall through the open shutter 18. Stalked feed

They do not fall through the throat, since they are sucked into the grinding zone and under the action of centrifugal forces of the velocity head of the air flow tend to the periphery of the rotor 5, where under the action of the rotating 22 and opposite 23 knives, the product is cut throughout the whole feed section. After the preliminary grinding, the particles enter the secondary grinding zone, where, under the action of grinding elements 6 interacting with fixed elements 7 installed on deck 8, the particles are finally crushed to obtain a homogeneous split mass.

Performing a chopper feed, which combines the cutting process with the breaking, allows you to achieve the required grinding quality with minimal energy consumption, while increasing productivity when grinding difficult-to-process stalked fodder of high humidity, such as pea straw.

Claims (1)

5 claims A feed chopper, comprising a housing with loading and unloading necks, inside of which is placed a chopping chamber with a rotor, a grate chamber separating their sieve and devices for loading fibrous feeds and bulk materials, in order to increase productivity, it is provided with a device for loading fiber feeds 5 and a rotor with a knife grinder and anti-A cutting blades mounted obliquely along the rotation of the rotor at an angle to its radius equal to 0.28 radians, and the working surface of the sieve is made in the form of zigzag slots alternating with circular apertures. eight 74 d Figg.