CS246288B1 - Modular bridge for belt conveyors at open-cast mines - Google Patents

Abstract

The solution is a modular bridge for various types of belt conveyors for transferring belt transport over terrain obstacles in open-pit mines. The modular bridge consists of support pillars (lj, cross beams (2j) with adjustable bearings (3j) and spans (4). The support pillars (lj) are made as tubular structures consisting of a series of columns (5) and bracing (6). The cross beams (2) are made as steel weldments with the possibility of setting the required spacing of the bearings (3) and the possibility of fixing it firmly to the support pillar (lj. The span (4) of the bridge consists of main beams (7) supplemented by a spatial tubular structure (8) on the transverse profile of the bridge. The main beams (7J) are mounted on bearings (3).

Description

The present invention relates to a modular bridge of a temporary nature for conveying belt traffic across terrain obstacles on opencast mines.

Previous bridges for this purpose consisted of the use of reinforced concrete bridges, special steel constructions or modified type bridges, otherwise designed and used for crossings over the conveyor belt. These solutions have a number of disadvantages. These are long ordering times of the proposed structure, the structures are single-purpose and cannot be reused after dismantling, require special foundation, their service life resulting from the material used is considerably longer than the service life required for belt conveyor operation. The constructions are time-consuming in production, assembly and disassembly, and in the case of modified type bridges the load-bearing capacity is not used.

These shortcomings are overcome by the modular bridge for belt conveyors on opencast mines according to the invention, which consists of supporting pillars consisting of a tubular construction of variable height consisting of a series of columns and braces, the number of columns being determined by the required bearing capacity and width of the deck. A transverse beam is attached to the posts, to which bearings whose spacing can be adjusted are attached. On the bearings are placed bridge fields consisting of main beams, which are added to the transverse profile of the bridge by a spatial tubular structure on which the bridge deck is laid.

The advantage of the modular bridge for belt conveyors on opencast mines according to the invention is the modular construction of the bridge. The individual parts and their design make it possible to assemble a bridge of different dimensions, number of fields and load capacity, so that the bridge can be used for any type of conveyor belt. At the same time, assembly and disassembly and production are speeded up, and disassembled parts can be reused in the construction of another bridge, even in a different shape.

The accompanying drawings show schematically an embodiment of a modular conveyor belt for opencast mines according to the invention, in which Fig. 1 is a view and Fig. 2 is a cross-section. The modular conveyor belt consists of support pillars 1 terminated by a mounted crossbeam. 2 with bearings 3 and a bridge field 4 on them.

The support pillar 1 is composed of a tubular structure of variable height, consisting of a series of columns 5 connected by bracing 6. The number of columns 5 of the support pillars 1 is determined by the required load-bearing capacity and width of the deck. A transverse beam 2, such as a steel weldment, is attached to the posts, to which the bearings 3 are attached. Their design makes it possible to vary the pitch of the bearings 3 according to the type of conveyor belt. The bearings 3 are designed to accommodate transverse horizontal forces. The bearings 3 accommodate bridge fields 4 formed by main beams 7, for example of I-shaped steel beams, to which a tubular structure 8 assembled in the desired shape of the bridge cross-section is fixed. On the main beams 7 and the tubular structure 8 a deck 9 is laid, for example of wooden beams and planks. The structure is complemented by a protective structure 10.

A suitable foundation must be prepared prior to installation. First, the supporting pillars 1 are built and terminated by transverse beams 2 with bearings 3. The individual bridge fields 4 are assembled on the ground and assembled as a whole on the bearings 3. The tubular structure 8 can also be attached to the main beams 7 already mounted on the bearings 3 The bridge deck 9 is laid on the steel structure thus prepared and completed with a protective structure 10.

Claims (5)

A modular bridge for belt conveyors on opencast mines, characterized in that it consists of supporting pillars (1), crossbeams (2) with adjustable bearings (3) and bridge fields (4). A modular bridge according to claim 1, characterized in that the supporting pillar (1) is designed as a tubular structure formed by a series of columns (5j and a stiffening (6)). The modular bridge according to claim 1, characterized in that the crossbeams (2) are made as steel weldments with adjustable spacing of bearings (3) fixed to the supporting pillar (1). A modular bridge according to claim 1, characterized in that the field (4) consists of main beams (7) of variable length mounted on bearings (3j) and supplemented by a spatial tubular structure (8) on the cross-section of the bridge. A modular bridge according to claim 1, characterized in that the bearing (3) is designed as a steel weldment.