SU478085A1 - Diskov mill - Google Patents

Description

I

The invention is intended to grind fibrous materials at a high nx concentration in the pulp and paper industry.

A mill mill is known, including a grinding chamber, rotating and non-rotating discs with central and peripheral razma; sectors.

The purpose of the invention is to demonstrate the quality of fiber processing.

This is achieved by the fact that the peripheral grinding sectors are extra-long in the form of teeth, sticking over the planes of the central grinding sectors, with the non-rotating disk tooth wrapping around the rotating disk tooth.

The drawing shows the proposed vfe / ibHHna in section.

In the grinding chamber 1 are located

rotating disk 2 with grinding elements 3 and 4 and non-rotating disk 5 with reamerating elements 6 and 7. Elements 3, 4, 6 and 7 can be made in the form of rings or assembled from sectors.

The peripheral elements 4 and 7 are made in the form of teeth protruding above the planes of the central elements 3 and 6, and the ring with the teeth of the element 7 on the non-rotating disk engages the teeth of the ring of the element 4 of the rotating disk. It is possible to perform elements 4 and 7 with two or more rows of teeth, then each row of teeth of element 7 encloses a corresponding row of teeth of element 4.

The mill works as follows.

The processed material through the inlet enters the grinding zone between elements 3 and 6, then enters the treatment zone between elements 4 and 7. Here is the dissolution of bundles of fibers, rolling. The gap between the teeth of elements 4 and 7 can be constant and adjustable. The grinding mass is removed from chamber 1.

To dilute the mass before feeding it into the treatment zone with the external elements i and 7 or injecting reagents, for example, for bleaching the mass, the mill may be supplemented with devices for supplying a dilution fluid from the stator side. rotating and non-rotating disks with central and peripheral milling sectors, distinguished by the fact that, in order to improve the quality of fiber processing, peripheral grinding Ktorov vsholneny in the form of teeth protruding from the central planes of grinding sectors with teeth grasping teeth nevraschayuschegos disk rotating disc.