SU969310A1 - Arrangement of re-lining drum mill - Google Patents

Description

(54) DEVICE FOR RE-FUTTERING OF DRUM .nbHHUbI

one

The invention relates to mechanical engineering, in particular, to the mechanization of labor-intensive work in the refining of mills, and can find application in enterprises operating or producing mills or other mechanisms having a lined surface, for example, in ferrous and ferrous metallurgy, in the cement industry, etc. .

A device for relining grinding mills with grinding bodies is known, consisting of a trolley moving along longitudinal beams mounted inside the mill, a load-carrying boom and an U-shaped shelf 1.

The disadvantages of this device are that the load gripping holds the lining plate by the edges, which makes it impossible to lay it close to the previously laid plates; the combination of the mounting holes in the lining plate with the holes on the lined surface is performed blindly, which requires an additional expenditure of time on re-lining; The stacker only serves part of the mill drum. To remap the rest of the surface, it is necessary to rotate the drum of the mill, which also leads to additional time costs.

In addition, multi-kilogram mounting bolts are inserted into the lining plates after laying the plates on a lined surface that is above the installer’s head, which is unsafe.

Closest to the present invention, there is a device for re-fitting a drum mill, comprising a monorail, those for moving the lining plates, having a manipulator with a supporting table, as well as a clamp for fastening the plates on the table 2.

When relining with a known device, additional time is required to align the holes of the lining plate and the lined surface, which is blind, since the holes in the lined surface are not visible due to the lining plate and table.

In addition, the installation of multi-kilogram mounting bolts over the worker’s head during lining the upper part of the mill drum is unsafe.

The purpose of the invention is to reduce the complexity of installation work.

This goal is achieved by the fact that in the device for re-fitting a drum mill containing a monorail, a trolley for moving lining plates, having a manipulator with a supporting table, as well as clamps for fastening the plates on the table, the supporting table is made in the form of two beams with a transverse trimmed and provided with removable shtyry located vertically between the beams with the possibility of movement relative to the beams in the longitudinal and vertical directions.

FIG. 1 shows the proposed device and its position in the drum of the mill, general view; in fig. 2 — node I in FIG. one; in fig. 3 shows section A-A in FIG. 2

The mill re-fitting unit consists of a transfer mechanism 1 and a table 2.

The movement mechanism includes a drive 3, a monorail (swivel beam) 4, a hinge support 5, a trolley 6, a manipulator 7.

The casing of the table 2 is made in the form of two guides 8 with holes 9 connected by connections 10 to the stops 11 and provided with removable pins 12 with holes 13 and fingers 14 mounted on the table with the possibility of movement in the longitudinal and vertical directions x. The device also contains hooks 15 for fixing on the table 2 a lining plate 16 with holes 17 with fixing bolts 18 in place 19; a drum 20 of a mill with walls 21, hatches 22, openings 23; the gap 24 between the plate 16 and the wall 21.

The device works as follows.

Before the stacker starts working, the pins 12 are installed so that they protrude above the table 2 of the stacker and are separated from each other in accordance with the holes 17 of the standard size supplied to the table 2 of the lining plate 16. Next to the table 2, through the hatch 22, the plate 16 is inserted with inserted outside the drum 20 with bolts 18. At the same time, the pins 12, the entrance to the holes 17, center the plate 16 relative to the table 2 and keep the bolts 18 from falling out during the further transportation. The plate 16 is fixed on the table 2 with hooks 15 for the strips 19. With the help of the mechanism 1, the plate 16 is brought to the place of installation and placed opposite the holes 23 in the wall 21 of the drum 20 of the mill at a distance equal to the length of the part of the bolts 18 sticking out of the plate 16. through the gap 24, the axes of the holes 17 coincide with the axes of the holes 23, orienting themselves along the bolts 18. The misalignment of the holes 17 and 23 is insignificant in this case and doesn’t have, since the bolts 18 sit in the holes 17 loosely and that they may be rejected. The bolts 18 are deflected until they enter the holes 23 and the plate 16 together with the bolts 18 are pressed against the wall 21, while due to the sliding of the bolts 18 along the edge

holes 23, the holes 17 and 23 are aligned. The pins 12 themselves can also be used when aligning the holes as landmarks instead of bolts .18. To do this, pins 12 are raised above table 2 so that they protrude above the laid

on the table 2 stove 16.

When using the present invention, the working conditions are improved and its safety is ensured, since the installation of bolts in

lining plate when lining a part of the drum above the worker's head; the time required to install the lining plates is reduced by facilitating the operation of aligning the holes; the number of workers is reduced.

Claims (2)

1. USSR author's certificate number 424599, cl. B 02 C 17/22, 1971. 2. USSR author's certificate number 426698, cl. B 02 C 17/22, 1972. 23 2f 7 /////// 7 / iv // 7 //////// 23 2f Aa . 3