SU1695100A1 - Lining of rotary furnace - Google Patents

Abstract

The invention relates to masonry linings of rotary kilns of the colored, cement and refractory industries. The purpose of the invention is to increase the service life of the lining and reduce the size of products. The lining contains rings 1-3 of the wedge products 4, 5 with inclined projections 6, 7 and corresponding depressions 8, 9 on the sides contacting in the rings 1-3, with the slope of the projections 6, 7 and depressions 8, 9 for articles 4.5 adjacent rings 1,2 or 1.3 are opposite. Products 4 of each ring 1 are deployed relative to products 4 of adjacent rings 2 and 3 by 180 ° C; In the longitudinal section of the furnace, the surfaces having protrusions 6 alternate with surfaces having hollows 8. Adjacent rings 1-3 are lined with articles of the same size. 1 hp f-ly, 2 ill.

Description

The invention relates to linings of rotary kilns of non-ferrous metallurgy, cement and refractory industries.

The purpose of the invention is to increase the service life of the lining and reduce the size of products.

FIG. Figure 1 shows a fragment of the lining of a rotary kiln; in fig. 2 - lining of products of the same size.

Offered rotary lining

the furnace contains rings 1-3 of the wedge products 4 and 5 in the form of a prism. On one of the contacting sides in the ring 1-3 of each product 4 and 5 there is an inclined prismatic ledge 6 (in the ring 2, 3) or 7 (in the ring 1). The protrusion of 6.7 in shape and size corresponds to the depression 8 (in the ring 2, 3)

or 9 (in ring 1) of the opposite side of product 4, 5. In ring 1 and 2, products 4 and 5 are arranged so that the protrusion 6 and 7 on the surface of one product 4 and 5 is located in the corresponding notch 8 and 9 of the adjacent product 4 and 5 In the intermediate ring 1 and the ring 3 adjacent to it, the distance between the projections 6 and 7 of products 4, 5 of these rings 1, 3 is less than that of the working surface of the lining, 11 opposite it, and about 2 opposite to the other ring 2 . e. the inclination of the projections 6 and 7 of products 4, 5 of adjacent rings 1 and 2 is opposite. In the longitudinal section of the furnace, all surfaces have only projections 6 and 7 or depressions 8 and 9. The lining is made of products 4 and 5 of two sizes differing in the opposite inclination of the projections 6 and 7 to the working surface 10 of the lining

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The lining is mounted as follows.

Lay out products 5 of the same size, ring 1, insert protrusions 7 of one product 5 into the corresponding notches 9 of the neighboring one. Similarly, lay out products 4 of another size (with the opposite inclination of the projections 6 or notches 8 to the working surface) rings 2 and 3 adjacent to the first one. Each subsequent ring is laid out with articles 5 different in size from products 4 of the previous ring. When laying dry at the same time, the installation of products 4 and 5 of two rings with the arrangement of protrusions and depressions, as in rings 1 and 3, are carried out

During the operation of the rotary kiln, the displacement of the products 5 of the intermediate ring 1 towards the osm of the furnace is prevented by the products 4 of the adjacent ring 3, and the displacement in the opposite direction - the products 4 of another adjacent ring 2. The ring 1 is called between the adjacent rings 2 and 3 and does not move along the axis of the furnace. Similarly, the remaining rings are wedged. As a result, the formation of ring ellipse is eliminated.

In order to reduce the sizes of products, the lining can be made with products 4 of the same size (Fig. 2). For this product 4, the rings 1 are positioned relative to the products 4 of the adjacent rings 2 and 3 turned 180 °. In this case, in the longitudinal section of the furnace, the surfaces having protrusions 6 alternate with surfaces having cavities 8, and the inclination of the projections 6 and valleys 8 of products 4 of adjacent rings 1-3 is opposite.

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When installing the lining of articles 4 of one size, after laying the initial ring 1 of products 4, lay out the rings 2 and 3, unwrap the product 4 by 180 ° relative to the products 4 rings 1. The subsequent rings are laid out similarly, unwrapping the product 4 relative to products 4 of the previous ring . When laying dry at the same time are mounting two rings with the location of the products, as in rings 1 and 3.

During operation, this lining works in the same way as the lining of products of two sizes.

The proposed lining will eliminate the displacement of the lining rings along the axis of the furnace while maintaining the ability to move the rings around the circumference of the furnace casing, increase the building strength of the lining in service, and increase the service life of the lining,

Claims (2)

1. The lining of the rotary kiln containing rings of square products with protrusions and valleys on the contacting sides in the ring, characterized in that, in order to increase the service life of the lining and reduce the standard sizes of products, the projections and valleys are located on the products obliquely, and the slope of the projections or (i) depressions in the products of adjacent rings are opposite, 2. Lining pop. 1, characterized in that the products of one ring are rotated 180 ° relative to the products of the adjacent ring 8Fig. J 7 / UHUL / U / yuv FIG. 2