SU870532A1 - Device for milling dry fibrous semifinshed product - Google Patents

Description

one

The invention relates to equipment for the processing and grinding of a dry fibrous semi-finished product, a rianer of cellulose fibers, and can be used in pulp and paper industry.

A device is known for grinding a dry fibrous semi-finished product that includes a cylindrical housing with a snail xylera at the exit, equipped with an impeller, a rotor mounted in the cylindrical housing,: made in the form of a shaft with disks fixed to it and placed between them by radial baffle plates rigidly connected with discs, nozzles for introducing the fibrous semi-finished product in the directions of the working surfaces of the disks and the baffle plates and the withdrawal of the fibrous semi-finished product from the working surfaces of the impeller M.

The aim of the invention is the intensification of the grinding process and the possibility of regulating the technological regimes.

The goal is achieved by the fact that the device has a rotor shaft speed controller, an additional shaft on which the impeller is fixed, and cutting elements mounted on the working surfaces of the disks, baffle plates, cochlea chamber and impeller.

In this case, the cutting elements are made in the form of knives or abrasive material.

Fig. 1 schematically shows a device for processing a dry fibrous hemofaciate ikata, general view; figure 2 - section aa in fig ..

The device comprises a nozzle 1 for introducing the fiber semi-finished product and a nozzle 2 for withdrawing the semi-finished product from the device after its processing. Inside the cylindrical body 3 there is a rotor made in the form of a shaft 4 with disks 5 mounted on it at a certain distance from each other and radical fender plates 6 ....

The cylindrical body contains a cochlear chamber 7 with a c1;

25 which is mounted on an additional shaft 9. On the inner surface, the housing 3, and the working surfaces of the disks 5, the extraction plates 6, ukktoo (the basic kosher 7 n impeller 8

Claims (2)

30, cutting elements 10 are mounted. A speed regulator for the rotation of the rotor shaft 11 is mounted on the shaft 4. The device operates as follows. Semi-finished, pre-divided / for example, in the disintegrator on particles of 5-6 mm in size enters the device through pipe 1 in the air stream. Under the action of the vacuum created by the cochlear chamber 7 and the impeller 8 inside the casing 3, the semi-finished product particles tend to pass through the annular gaps between the disks 5 and the shaft 4, but the mechanical effect on the particles from the side of the striking plates b discards the particles to the cutting elements 10 the inner surface of the housing 3. Then the particles fall on the impeller 8 of the cochlear chamber 7, are subjected to additional grinding and are ejected through the nozzle 2. When the semi-finished product moves in the gap between the casing 3, the disks 5 breaker plates b, and when it hits the cutting elements 10, located on the working surfaces of the disks 5, the breaker plates, the cochlear chamber 7 and the lid 8, the semi-finished product is processed. Cutting knives could be used as cutting elements and ab rasivny materials. Claim 1. Device for grinding dry semi-finished semi-finished product, including a cylindrical body with a cochlear chamber at the exit, equipped with an impeller, a rotor mounted in a cylindrical body (made in the form of a shaft with disks fixed on it and placed between them by radial baffle plates rigidly connected discs, nozzles for introducing the fiber semi-finished product in the direction of the working surfaces of the disks and the baffle plates and outputting the semi-finished fibrous material from the working surfaces of the wings Hatches, characterized in that, in order to intensify the grinding process and enable adjustment of technological modes, it has a rotor shaft speed controller, an additional shaft on which the impeller is fixed, and cutting elements fixed on the working surfaces of the disks, baffle plates. , chambers and impellers. 2. The device according to claim 1, about t l and so that the cutting elements are made in the form of knives or abrasive material. Sources of information taken into account during the examination 1. River and Paper Engineering, 1976, voe. 5, p 17-26. X H / J ff T H ff fff Fog. f