SU503590A2 - Disk crusher - Google Patents

Description

one.

The invention relates to a device for grinding and can be used in mixed fodder, flour milling and large-scale industries, as well as in livestock and poultry farms.

According to the main author. St. No. 4,26694, a disk crusher is known, including rotating and fixed disks, on which cutting edges are mounted. It provides high-quality grinding materials, but when finely grinding its performance is limited.

The purpose of the invention is to improve the quality of grinding and improve the productivity of the crusher.

This is achieved by the fact that the fixed disk is equipped with opposing zigzag-like ribs and partitions fixed on its surface, forming a series of concentrically arranged interconnected chambers, each of which is divided by a longitudinal internal partition into two channels that serve to enter and remove the product, so that channel to remove the product from one chamber, connected to the channel for the receipt of the product

to another chamber, wherein the surface of the rotating disk is stepped, and the depth of the steps is successively reduced from the center of the disk to the periphery.

The width of the steps on the rotating disk is equal to the width of the camera on the fixed disk.

FIG. 1 shows a disk

0 crusher, general view, section, in FIG. 2 is that one, transverse section A-A in FIG. 1, in FIG. 3 is the same, section BB in FIG. 1, in FIG. 4 is the same, section B-B in FIG. 2

five

The disk crusher consists of a crushing chamber 2 fixed to the frame 1, on its underside there is a ring-mounted discharge bin 3 and an electric motor 4, on a shaft of which rotates the disk 5c with cutting ribs 6 and the impeller 7.

A receiving hopper 8 and a fixed disk 9 are provided on top of the crushing chamber;

5 of its surface contradictory

zigzag ribs 10 and partitions 11, forming a series of concentrically interconnected chambers 12, each of which is divided by a longitudinal internal partition 13 into two channels that serve to enter and remove the product, so that channel 14 to remove the product from one chamber is connected to channel 15 to bring the product to another chamber, while the surface of the rotary disk of the disk is stepped, and the depth of the steps is sequentially reduced from the center of the disk to the periphery. Width of steps on rotating

disk is equal to the width of the camera on a fixed disk.

Disk crusher works as follows.

The product to be crushed from the receiving bin 8 enters the rotating disk 5 and the impeller blades 7 captured enters the channels of the first zigzag closed contour and simultaneously into the recess of the first stage of the rotating disk 5.

In order to reduce the cutting effort, the cutting ribs b and the opposing zigzag-shaped ribs 10 are located at a noj angle to the radii of the disks.

To pinch the grinded material, the angle formed between the cutting ribs 6 and the opposing zigzag ribs 10 at their intersection should be no more than the DOUBLE friction angle of the grinded (material along the ribs of the discs).

When the rotation of the disk 5 rotates, the cutting ribs b and the opposite zigzag ribs 10 act like scissors, pinch the pieces of the material to be crushed and intersect them. The size of the particles being cut is no more than the sum of the height of the cutting edge b and the gap between the cutting edges of the edges b and 10. Thus, the grinding of pieces of material occurs mainly due to the sliding cutting between the cutting edges b and opposing zigzag edges. 10, working on the principle of scissors.

According to this principle, grinding occurs at all crushing stages.

At the first crushing stage, coarse grinding to coarse particles occurs, since the height of the cutting edges b due to the greatest depth of the stage on the rotating disk 5 is greatest here.

Cut off on the first step; crushing by cutting edges b material particles due to the centrifugal force fall into chambers 12 formed by channels 14 of the first contour and channels 15 of the second contour, where cutting edges b intersect with contradictory zigzag edges 10 again cut particles of material, rial, but smaller, since the depth of the second stage on the rotating disk 5 is less than the depth of the first stage and, accordingly, the height of the cutting edges b on the second stage is less than the height of the cutting edges b on the first stage.

Cut at the second stage of crushing also cutting edges of the bastard of the material under the action of centrifugal forces enter the chambers 12 formed by the channels 14 of the second contour and the channels 15 of the third contour in this case the last

5 where the cutting edges b, intersecting with contradicting s and ga ribs 10, again cut off particles of the required size that do not exceed the size equal to the height of the cutting edges b of the last crushing stage in total with the size of the gap between the cutting edges of the edges b and 10.

Cut particles required

The size of the cutting ribs is carried out into the channels 14 of the third circuit, from where the ground product enters the annular discharge hopper 3.

Thus, the material | 1 subsequently crushed at all stages

0 crushing from large particles to particles of the required size.

Claims (2)

1.Diskov crusher on author. St. No. 426694, in order to improve the quality of grinding and increase the productivity of the crusher, the fixed disk is equipped with opposing zigzag ribs and partitions forming on the surface, forming a series of concentrically arranged interconnected chambers, each of which is divided by a partition into two channels serving to intake and removal of the product, so that the channel to remove  The product from one chamber is connected to a channel for bringing the product into another chamber, wherein the surface of the rotating disk is stepped, and the depth of the steps is sequentially reduced from the center of the disk to the periphery. 2. Crusher according to claim 1, characterized in that the width of the steps on the vrgitsaktsom disk equal to the width of the camera on a fixed disk.