Control and positioning system for replacement of worn bushing elements on worn walls
A positioning system and bushing technology, which is applied in the direction of manufacturing tools, instruments, grain processing, etc., can solve the problems of heavy wear and danger of bushings, and achieve the effect of alignment
Active Publication Date: 2017-06-06
METSO OUTOTEC (FINLAND) OY
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Problems solved by technology
It should be recognized that this operation is highly hazardous not only because the worn liner segments being replaced are often very heavy
Method used
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Embodiment Construction
[0027] figure 1 Shows a cross-sectional view of part of a typical grinding drum 1 having a surrounding wall in the form of a sheet metal jacket 2 subject to wear, as used in an ore grinding machine during the crushing and grinding of ore 3. The grinding drum. The first operator 5 (crane operator) is located inside the drum, while the second operator 6 is located outside the drum. The two operators 5 and 6 are able to communicate with each other wirelessly by eg mobile phones or wireless links. The inner drum liner at this type of drum mill 1 is formed by a plurality of wearing liner elements 10 (called "jacket plates") adjoining each other. Each wear lining element 10 has a lifting lug 11 designed to interact with a hooked gripper 12 at the free end of a lifting fitting 14 introduced into the grinding drum 1 . The wear lining element 10 is shown with an upper surface 15 facing the center of the grinding drum 1 and manufactured from a wear-resistant material, such as wear-re...
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The invention relates to a control and positioning system for indicating the installation position of a replaceable wear lining element (10) at the surface of a wall (2) subject to wear, which can be produced, for example, by a rotating drum at an ore grinding mill (1) and wherein the wear bushing element is supported on the free end of a motorized boom controlled by a crane operator (5) during loading and unloading of the wear bushing element during installation operations Lifting fitting (14), wherein the wall is provided with a set of mounting holes (21) and the wear bushing element is provided on its lower surface with attachment means (17), wherein the wear bushing element is intended to be introduced by means of the mounting holes The auxiliary attachment means (17') is fastened to the surface. For safe and efficient installation, the system consists of: a first reference system (Rv), formed by the mounting hole (21) in the wall (2); a second reference system (Rs), formed by the The attachment means (17) on the surface form; a two-dimensional sensor (31, 31') configured to be stationary at the outer surface of the wall (2), i.e. the opposite side of the wall to the mounting surface exposed to wear, to In this way, the field of view of the sensor includes the lower surface of the wear lining element (10) seen through the mounting hole (21), wherein the sensor is configured to transmit and with the guidance of this image, the crane operator (5) is able to determine the installation position of the wear lining element (10) at the wall.
Description
technical field [0001] According to the introduction to claim 1, the present invention relates to a control and positioning system for indicating the relative position between replaceable wear liner elements and predetermined installation positions in the On one of the interior surfaces of walls in equipment subject to wear. In an alternative design, the invention makes it possible to carry out this replacement of worn bushes also by remote control and two-way communication over the Internet. Background technique [0002] Walls subject to wear, such as the jackets of grinding drums used during the crushing and beneficiation of ores, are covered on the inner surfaces subject to wear with wear linings, for example of elastomeric material. The wear bushing is usually fixed by screw attachment to the surface of a cylindrical jacket sheet metal forming the rotating drum of the grinder. The wear lining of the grinding drum is formed by segments of a number of wear lining element...
Claims
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IPC IPC(8): G01B11/27B02C17/22B25J19/04
CPCB02C17/22G01B11/27B02C2210/02B02C25/00B23P19/00B25J19/04G01B11/272B02C17/1805B25J19/021
Inventor 塔格·默勒拉斯·富腾巴克丹尼斯·约翰松
Owner METSO OUTOTEC (FINLAND) OY