SU1372167A1 - Template for blast cupola lining - Google Patents

Abstract

The invention relates to metallurgy, in particular to iron foundry production, and can be used in devices for the manufacture and repair of lining cupola furnaces. The purpose of the present invention is to improve the quality of the lining and the productivity of the lining works. The mixture from the hopper 17 through the feeder 18 flows through the hole 12 of the bottom 9 of the upper shell 7 to the bottom 10 of the lower shell 8. When turning

Description

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the upper shell 7 relative to the fixed bottom 10 of the lower shell 8, the incoming mixture is distributed around the perimeter of the fixed bottom 10 and at the same time the refractory mixture is discharged from the bottom surface by the side surface of the rotating coil of the helix into the gap between the burnt out surface of the lining 1 and the side surface of the template. As the burnt-out space is filled with a mixture around the perimeter of the lining due to the rotation of the shell 7 with the surface of the coil, the formed lining layer 1 is compacted, after which the pattern is continuously and evenly lifted using a lifting mechanism. After repairing the lining 1, the mixture is stopped from the feed bin 17 over the entire required height of the cupola 2, the template is lowered and removed from the cupola. 3 hp f-ly, 6 ill.

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The invention relates to metallurgy, in particular to iron foundry production, and can be used in devices for the manufacture and manufacture of cupola lining.

The aim of the invention is to improve the quality of the lining and the performance of the lining works.

1 shows an installation for repairing a lining of a cupola with a template, a general view; figure 2 - template, longitudinal section; Fig. 3 shows the upper shell of the template, cross section; figure 4 - the upper bottom of the upper shell, top view; FIG. 3 shows a template for lining the cupola, a spatial image; Fig. 6 shows an installation for lining a cupola with a template, an embodiment.

The lining template 1 of the cupola 2 is included in the installation, which also includes a rotation mechanism 3, a lifting mechanism 4 and a device 5 for feeding the lining mass to the template.

The template is mounted on the end of the telescopic boom 6 of the lifting mechanism 4 and consists of the upper shell 7 and the fixed lower shell 8 mounted for rotation, which are provided respectively with bottoms 9 and 10 facing upwards. The upper shell 7 in cross section is designed as a coil 11 of a spiral curled in the direction opposite to the rotation of the upper shell. The side surface of the shell 7 is inclined relative to the axis of rotation. In the bottom 9 of the upper shell 7 in the zone of the smallest radius of the side surface of the coil 11 of the helix, a hole 12 is made to feed the lining mix into the template. The bottom 9 of the upper shell 7 is fastened 5 with the coil 11 of the helix by radial stiffening ribs 13, forming an intercostal space 14, in which the mechanism 3 of rotation of the upper shell 7 is located, and the mechanism 3 itself

 installed and fixed on the bottom 10 of the lower shell 8, rigidly mounted on the end of the telescopic boom 6 of the lifting mechanism 4 by means of the ribs 15.

Along the perimeter of coil 11 helix

between its edge and the bottom 10 of the lower shell 8, a seal 16 is installed, which prevents the refractory mass from entering the inner space 14

 upper shell 7.

The device for feeding the lining mass into the template is made in the form of a feed hopper 17 fixed rigidly on the bottom 9 of the upper shell 7. Under the outlet of the bunker 17 a belt feeder 18 is mounted, feeding the mass into the hole 12 of the template.

The device 5 for feeding the lining mixture into the hole 12 of the template can be made both removable and stationary with respect to the template, and the filling of the feed bin 17 with a refractory mass can

5 is carried out both before the feeding of the template into the cupola cup 2 and during the lining process. The feed hopper 17 may be located on the

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the smelter site with the mixture being fed into the template through a flexible hose.

With insignificant heights of the cupola-shaped space, the lifting mechanism 4 can be made using a flexible connection, for example, a rope, which allows

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mechanism and outside the space of cupola 2

To make lining 1 of cupola 2 anew, the diameter of the upper bottom 9 of the upper shell 7 can be made larger than the diameter of the bottom 10 of the shell 8 and equal to the internal diameter of the casing of the cupola 2.

The device works as follows.

After filling with the lining mixture of the feed bin 17 of the device 5 for supplying the refractory mixture to the template, the sai repair unit is brought under the cupola 2 and with the help of the telescopic boom 6 of the lifting mechanism 4 is introduced into the chamber of the cupola 2. the upper shell 7 and the belt feeder 18 of the device 5 for feeding the lining-mixture into the template. The mixture from the hopper 17 through the feeder 18 flows through the hole 12 of the upper bottom 9 of the upper shell 7 to the upper bottom 10 of the lower shell 8. When the upper shell 7 rotates relative to the fixed upper bottom 10 of the lower shell 8, the incoming mixture is distributed around the perimeter of the fixed bottom 8 and simultaneously discharging the refractory mixture from the surface of the bottom 8 by the side surface of the rotating coil 11 of the helix into the gap between the burnt-out surface of the lining 1 and the side surface of the template. As the burnt-out space is filled with a mixture around the perimeter of the lining due to the rotation of the shell 7 with the surface of the coil 11, the formed lining layer 1 is compacted, after which the pattern 4 is started to carry out a constant and uniform lifting.

When the refractory mixture is continuously fed into the template, the seal of the formed lining 1 with continuous

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the lifting of the template takes place continuously, and the formed curtains of the lining 1 are in a constant state of equilibrium with the applied sealing forces from the side surface of the coil 11 of the rotating upper shell 7.

When repairing the lining 1 over the entire required height, the cupola 2 stops feeding the mixture from the feed hopper 17, the template 4 is lowered and taken out of the cupola 2.

The execution of the side surface of the upper shell 7 of the template in the form of a turn 11 of the spiral and the supply of the shells 7 and 8 of the template with upper bottoms 9 and 10 significantly increase the density of the lining 1 due to constant and directional pressing in the lining 1 formed layers of the mixture continuously flowing into the template, and also increase the productivity of the template both due to the simultaneous 25 formation of the lining 1 along its entire perimeter, and due to the combination of the operations of filling and compacting the lined space.

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Claims (4)

1. The lining pattern of the wagon of the wagon, containing two coaxially mounted shells, in the top of which there is an opening for feeding the lining mixture, and a mechanism for rotating the upper shell, characterized in that, in order to improve the quality of the lining and performance, each shells made in the form of an inverted glass, and the upper shell in cross section made in the form of a spiral. 2. Pattern pop, 1, differs from the fact that the lateral surface of the upper shell is inclined relative to the axis of rotation. 3. Pattern according to claims 1 and 2, characterized in that the opening for feeding the lining mixture is located on the bottom of the upper shell in the zone of the smallest radius of the shell. 4. Pattern on PP.1-3, about t l and h a-yu and and the fact that the diameter of the bottom of the upper shell is larger than the diameter of the days-the bottom. Puf 1 Fig a Fig.Z 7 Editor N.Lazarenko / iff / cf / ff 77f Fig.b Compiled by T. Chirkunova Tehred A. Kravchuk Proofreader O. Kravtsova