SU686761A1 - Intercameral partition - Google Patents

Description

(54) PARTITION CAMERA

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This invention relates to the grinding of solid and medium-hard materials, such as cement raw materials or clinker, in pipe mills.

Intercamera partitions are known, consisting of individual sectors with a different profile of holes in them l.

However, due to the stiffness of the partitions, their holes are blocked by the grinding of milling bodies and the material to be ground. In addition, when casting parts of partitions, it is difficult to sustain the profile of the holes for a given size. It should also be noted the large weight of individual parts of the known partitions and the complexity of installing them in the mill.

Closest to the proposed invention to the technical essence is an intercameral partition containing separate sectors, made in the form of continuous plates of a wedge-shaped profile, forming shelves between themselves and connected by a fastening element 2J.

In this partition, the part of the partition that is most rapidly weared out — the narrow ends of the sectors — occurs in the place where the grinding load is rolling, i.e. on the area of the most intense wear of the septum.

The purpose of the invention is to increase the service life of the septum due to its more uniform wear and improvement of the grinding process in the mill by means of more intensive work of ball loading at the inter-chamber septum.

To do this, in the proposed partitioning, which contains separate sectors, made in the form of solid plastios of the wedge-shaped profile, which form gaps between each other and connected by the fastening element, the cross-sectional area

0 each sector of the partition in the area constituting 2/3 of its length from the narrow end is enlarged and equal to 1.0-1.2 across the wide cross-section

parts of the sector. On the site 2/3 of the length of the sector can be penetrated wear-resistant coating.

FIG. 1 shows sectors with an increased cross-sectional area of narrow hasti; in fig. 2 - partition, assembled from these sectors and installed in the mill.

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The partition is mounted from sectors 1 with wedge-shaped ribs 2, each of which rests with its thickened narrow part on the inner ring 3 and is pressed from o6etQf sides with pressure rings 4, and a wide part of the inner surface of the casing 5. Between sectors, throughout their working lengths formed by slits 6 for the passage of the material to be ground.

When the mill rotates, the finely ground material passes through the slots 6 between sectors 1 into the next chamber of the mill, and the ground material is thrown with the wedge-shaped ribs 2 of sectors 1 back into the chamber for rest. Due to the fact that each sector 1 of the partition is made thicker in its narrow part and, therefore, has a cone-shaped protrusion in the central part of the mill 5 in the plane of the partition, the grinding bodies in contact with these ridges work more intensively and more effectively house the stripped ribs 2 unmilled material particles.

For mills that allow the use of elastic wear-resistant materials, an increase in the cross-sectional area of the narrowest part of the sectors can be achieved by coating; these areas wear-resistant material 8 (Fig. 1),

The proposed cell chamber wall is more durable than the known one and allows to improve the grinding process.

Claims (2)

Invention Formula 1, Intercameral partition for pipe mills, containing separate sectors made in the form of flattened plates of a wedge-shaped profile, forming gaps between each other and connected by a fastening element, about t and h and o-. So that, in order to increase the life of the partition due to more paBHojviepHoro its wear and improve the grinding process in the mill by more intensive work of the spherical load at the interchamber partition, the cross-sectional area of each sector in the area constituting 2/3 of its length from the narrow end, equal to 1.0 1.2 square of the cross-sectional area of the shchiro. which part of the sector. 2, The partition wall according to claim 1, about tl, which is so that, in order to increase the cross-sectional area of each sector, a wear-resistant coating is made on the site 2/3 of its length. Sources of information taken into account in the examination 1, USSR Author's Certificate No. 417163, cl. B 02 C, 17/18, 1972. 0 2. USSR author's certificate No. 528116, cl. B 02 C 17/18, 1974.