SU1662685A1 - Mill - Google Patents

Abstract

The invention relates to a grinding technique. The purpose of the invention is to increase the efficiency of grinding, predominantly fiberglass, simplify the design and ensure the separation of the product according to fractional composition. The grinded material enters the mill through the hoppers 13, after which the screw feeder is mixed and fed into the zone of action of the cutting knife 3, which crushes the material on the disk 6 with holes. After spilling in the disk 6, the material is pushed through the holes onto the disk 9. At the same time, the disk 6 with its profiled element 5 at the lower end interacts with the profiled collar 4 of the vertical shaft 2 and receives a reciprocating movement in the vertical plane. The springs 7 connect the disk 6 with the casing 1. The product falling on the rotating disk 9 is subjected to centrifugal forces. Larger particles of the product are discharged by centrifugal forces from disk 9 to discharge. Through the axial channel 11 and the inclined holes 12, made in the shaft 2, fine particles of the product are sucked off with air. 2 Il.

Description

The invention relates to a grinding technique and can be used in the chemical, construction and other industries of the industry to produce a fine and medium grinding product from waste fiberglass, plastics and other materials.

The purpose of the invention is to increase the efficiency of grinding, predominantly fiberglass, simplifying the design and ensuring separation of the product by fractional composition.

Fig, 1 shows the proposed mill, a vertical section; in fig. 2 - scan profiled collar shaft.

The mill includes a housing 1 in which a vertical shaft 2 with a cutting knife 3 is installed, equipped with a drive. On the vertical shaft 2, a profiled shoulder 4 is formed, with which the profiled element 5 interacts in the central part of the lower end of the disk 6 with openings. The latter is connected by means of springs 7 to housing 1. The disk 6 with holes is twisted around an axis by a guide key 8. In the lower part of the shaft 2 there is fixed a disk 9, the upper end surface of which is provided with radial ribs 10, the upper part of the shaft 2 is axially made channel 11, passing into the inclined holes 12 in its middle part, with access to the surface of the shaft 2 above the disk 9. The material is loaded through the hoppers 13. On the upper part of the shaft 2 is screwed feeder 14. In the lower part of the housing 1 There is a gutter 15 for unloading the finished product. A mesh can be installed to filter the product in the axial channel 11.

The mill works as follows.

The grinded material enters the mill through the hoppers 13, after which the screw feeder is mixed and fed into the zone of action of the cutting knife 3, which grinds the material. The grinder material spills through the holes in the disk 6 and is poured onto the disk 9. At that, the disk 6 with its holes the profiled element 5 interacts with the profiled shoulder 4 of the vertical shaft 2 and at the same time receives reciprocating motion in the vertical plane. This contributes to a more efficient passage of the product through the holes of the disk 5 and the effective grinding of waste.

fiberglass. The springs 7, which join the disk 6 with the body 1, the work for stretching, press the disk 6 against the profiled end surface of the collar 4. The product falling on the rotating disk 9 is exposed to centrifugal forces. Radial ribs contribute to the creation of vortex flows. At the same time, larger particles of the product by centrifugal forces

are discarded from disk 9 and, poured into chute 15, removed from the mill. Through the central axial channel 11 and inclined holes 12, made in the vertical shaft 2, fine particles of the product are sucked from the disk 9 by air flow. You can also use a mesh for filtering. It turns out that the product coming out of

mills, divided into two parts by fractional composition.

The technical and economic advantages of the proposed mill are to simplify the design and the corresponding

increase reliability, increase mill productivity by improving the conditions for grinding and passing the product from fiberglass waste through the holes of the disk 5;

the product is divided into two parts by fractional composition.

Claims (1)

Invention Formula A mill comprising a housing, a vertical shaft with a cutting knife, a coaxially mounted disk with holes and a feeder, as well as feed hoppers and a horizontal disk with radial ribs, discharging device, in order to increase the grinding efficiency; predominantly fiberglass, simplify the design and ensure separation of the product by fractional composition, the disk with holes is made in the central part of the lower end with a profiled element, and the shaft with the joint profile with it a collar, the disk with holes is spring-loaded relative to the body with the possibility of vertical movement, and the unloading device is made with an axial channel in the upper part of the shaft passing into inclined holes with access to the shaft surface under the disk with holes, while the disk with radial ribs is installed under the sloping holes. Schi I