SU1411027A1 - Centrifugal mill - Google Patents

Abstract

This invention relates to the fine grinding of various materials. The purpose of the invention} is to study the material of a narrow particle size distribution, ma. u- contaminated with food. The centrifugal mill contains two bodies 1 with loading nozzles 7 on the lids and an unloading nozzle 10, as well as rotors 3 installed with accelerating plates in the corners and return channels 8 of underexposed particles having spiral shapes with narrowing towards the loading offense. The accelerating part of the blade is nena; 1en tangentially to the loading circle on the opposite side of the rotor rotation, and the end of the balance is directed radially or towards the rotor. 4 il.

Description

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The invention relates to the fine grinding of various materials.

The purpose of the invention is to obtain a material with a narrow particle size distribution and little-contaminated namol products.

FIG. Figure 1 shows a mill, horizal cut (the left inlet nozzle is shown uncut;); in fig. 2 shows section A-A in FIG. one; in fig. 3 - the rotor having the radial ends of the blades, top view; in fig. 4 - the same, with the horses, amber shovel K, directed in the direction of rotation.

The mill contains two bodies 1 interconnected by a channel 2. In each body there is a rotor 3 having a conical accelerating surface 4, which is equipped with blades having accelerating part 5. directed tangentially to the circumference of the load False rotation of the rotor, and the end of 6, radiated; 1no or in the direction of rotation of the rotor. On the lid of each housing there is a loading port 7 and a return channel 8 of undersized particles. Korpuy are mounted on a common plate 9, supplied; unloading pipe 10, located under channel 2 at equal distance from the rotors.

The mill works as follows: toM.

The crushed material is fed through the charging 1) nozzles 7 to the accelerating portion of the blades, accelerated and thrown out with

the ends of the blades into the channel 2. In the channel 2, particles of crushed material are ground in intersecting flows. The underemesised particles, while continuing to move, enter the return channels 8 and then into the loading nozzles 7. The particles of the crushed material along with the transporting air are discharged through the discharge nozzle 10.

The mill allows you to shred the crushed material of a narrow particle size distribution (0.5–8 µm) when the ground material is contaminated with free products less than 0.1%.

Claims (1)

Invention Formula A centrifugal mill containing two canal-connected hulls with loading nozzles on the lids and an unloading nozzle, as well as rotors with accelerating vanes installed in the buildings, characterized in that. In order to obtain a material of a narrow grain-size composition and of a material that is little contaminated with oil, it is equipped with a return channel. They are not completely crushed}; particles, which have a spiral shape with a narrowing towards the loading nozzles, and blades are directed tangentially to the loading circle in the direction opposite to the rotation of the rotor, and the end of the blade is directed radially or towards the side of the rotor. ll Sh U2. Z Fi.g.3