SU992121A1 - Former for producing lining of metallurgical vessels - Google Patents

Description

. one

The invention relates to metallurgy and can be used for the manufacture of monolithic linings of metallurgical vessels, mainly iron-carrying ladles and converters.

An adjustable template for producing lining of ladles for casting is known, comprising a base, a vertical rod with a crane hook, a shell made to the full height of the ladle, and shaft-mounted shafts connected to the shell and a vertical bar to change the configuration of the shell l,

The disadvantages of such a template are the need for manual operations during the installation and dismantling of the template (rotation 8-12 of the spacer shafts), the unsuitability of the template for lining metallurgical containers with a conical extension, as well as large forces arising from the separation of the template from the lining.

A known template for lining metallurgical aggregates, comprising a base, a vertical rod rigidly connected to the base, a holder movable relative to the vertical rod, a shell is made of individual elements, rods connected to the shell elements and a bar, and the mechanism for moving the shell 2 radically. }.

The drawbacks of the device are the presence of a complex mechanism for the radial movement of shell elements and the need for sufficiently large efforts to detach them from the lining, since practically the simultaneous detachment of the entire surface of the shell from the lining occurs, which in total determines the low reliability of the template.

The purpose of the invention is to increase the reliability of the pattern.

The goal is achieved by those. what pattern for making

lining of metallurgical containers containing a base, a vertical rod rigidly connected to the base, a holder movable relative to the vertical rod, a shell made of individual elements, rods connected with shell elements and a rod, and a mechanism for the radial movement of the shell elements are rigidly fixed to vertical bar horizontal radial guides, each element of the shell is equipped with rollers mounted in guides with the ability to move along them and the mechanism radial Nogo movable shell elements formed as a flexible linkages of variable length and cargo, etc. This flexible links connected to the clip and thrust loads and are fixed on the connecting rods.

FIG. 1 shows a cast-iron ladle with a template, a longitudinal section, in FIG. 2 - a section A-A in FIG. 1, in FIG. 3 shows a template suspended from a crane hook, in FIG. K is a section BB in FIG. H; Fig. 5 shows a variant of the pattern.

The template for the manufacture of the lining of metallurgical containers contains a base 1 on which a ve is rigidly fixed; a vertical rod 2 on which the holder 3 is loosely attached is rigidly connected to the link 4. under the hook of the crane. In the upper part, the rod 2 has an abutment 5 and is rigidly connected to the frame 6, provided with centering elements 7 for interacting with the conical extension 8 of the metallurgical tank 9. The stencil of the template is made of separate elements 10 equipped with hinges 11, which are connected with the levers 13, in turn, are hingedly connected to the rod 2. On the inner surface of the shell elements 10 there are lugs 1, which are vertical lining protruding beyond the edge of the elements Yu, (Fig. 4),

The function of the stops and the restriction of the movement of the elements 10 to create the desired shape of the template shell after installing it in the bucket. The hinges 12 are connected by flexible links 15 to loads 16 and flexible links 17 to the holder 3, and the flexible connections 17 have different lengths. The shell elements 10 in their upper part are provided with rollers 18. moving along

the guides 19i with a rigidly fixed vertical bar 2 on the frame 6,

- The connection of the flexible links 15 with the hinge 12 can be constructively made either rigid, for example, with a wedge inserted together with the flexible link 15 into the hole of the hinge axis 12, or hinged, for example, with a bucket on the hinge axis 12.

The template works as follows.

For mounting the template in the metallurgical vessel 9, the template is suspended by an earring k on the hook of the crane. In this case, the yoke 3 abuts against the abutment 5, and the levers 13, due to the fact that they are connected to the yoke with 3 flexible links 17 of different lengths, rotate relative to the rod 2 each at its own angle, thereby providing different movement of the elements 10 of the template side and reduction in size the cross section of the template to the size necessary for the passage of the template into the neck of the conical extension 8 of the metallurgical tank 9. Moreover, the shell elements 10 are moved in the radial direction along the guides 19.

The template suspended on the hook of the crane is lowered into the metallurgical tank 9 until frame 6 with its centering elements 7 is installed on the conical extension 8. When the crane hook is further lowered, the chambers 1 3 turn downwards alternately under the action of loads 16 and move the template sides of the shell 10 to as long as the stops H, which are mounted on the inner surface of the shell elements 18, do not press against the inner surface of the base 1 and the inner surface of the neighboring elements 10, the movement of which has already ended. Such movement of the elements 10 provides an increase in the cross-sectional dimensions of the template to the extent necessary for the implementation of the lining. A uniform gap between the outer surface of the template and the inner surface of the metallurgical tank 9 is provided by the centering elements 7. The weight of the weights 16 provides the necessary rigidity of the shell of the template.

Claims (1)

1. USSR Author's Certificate No. 611716, cl. B 22 O / Q8, 1976. 2, USSR Author's Certificate No. 251191, cl. E G 15/06, 1968. tr