SU317741A1 - DISK MILL - Google Patents

Description

The invention relates to equipment for grinding fibrous materials and may be used in the pulp and paper industry.

Disc mills are known for grinding fibrous materials, comprising a housing, a drive shaft, a stator in the form of two non-rotating discs, and a rotary disk with a headset, mounted on its ends.

The purpose of the invention is to simplify the design, reduce the weight of the mill and improve the quality of grinding.

This is achieved by the fact that the rotor disk of the proposed mill is made with the possibility of free movement along the base shaft in the axial direction of the drive shaft.

The drawing shows the proposed disc 1mel1nitsa.

The mill consists of a housing /, grinding mill 2 with a cover 3, a drive shaft 4, bearing units 5, a rotating disk b, stator disks 7, a grinding set 5, hydraulic cylinders of the additive 9, a stuffing box seal 10 and 12.

The rotating disk 6 is mounted on the drive shaft 4 in such a way that it can be freely moved along it in an axial direction.

The shaft - / is fixed in the bearing assemblies 5 and has no axial movement. At the non-driven end of the shaft there is a nut 13, which protects the disc during assembly and disassembly from slipping from the shaft. To change the headset, you must open the cover of the grinding chamber 5 with the stator disk 7, mounted on the hinge, slide the cover 14. Preventing the seat of the disk from falling into the mass, unscrew

HY | k - 13 and remove the disk 6 from the shaft. The clearance in both zones of the grind is adjusted by the axial movement of the stator disk 7 by means of hydraulic cylinders 9. The mill operates as follows.

The mass is fed into the mill under pressure into the pipes 11 and 12, passes between the grinding headset from the center to the periphery and out through the hole in the grinding chamber. By

the equality of mass pressures on both sides of the rotating disk, the latter is self-installed on the shaft, although this is the gap between the rotating and non-rotating surfaces of the grinding surfaces will be the same. In this

design preserves the general principle of the floating rotor of disk mills, but unlike the known structures, the floating disk is a disk that can move freely on a fixed motion in the axial direction of the drive

; PREDEME TI 3 O bree T en N

j Disk mill for grinding fiber materials, comprising a housing, a drive shaft, a stator in the form of two non-rotating d | suits and a rotary disk with a headset mounted on its ends, distinguished by that.

that, in order to simplify the design, reduce the weight and increase the quality of the grinding, the rotor disk of the mill is designed to move freely along a drive shaft that is not axially moving.

77