JP7761338B2 - Ore transport platform and ore transport equipment - Google Patents

Description

The present invention relates to a platform for an ore transport route and ore transport equipment. More specifically, the present invention relates to a platform for an ore transport route that supports a transport route for transporting ore, etc., at a predetermined height above the ground, and to ore transport equipment in which the ore transport route is placed on the platform.

A stacker device (see Figure 1) used to continuously stack bulk materials such as ore and coal in a storage yard can stack loads higher if it runs as far away as possible from the ground surface (G in Figure 1). Therefore, the "ore conveyance path (i.e., the rails on which the stacker device itself runs)" is installed on an "ore conveyance path platform" that supports it at a specified height above the ground (see Patent Document 1).

As described above, the "ore transport route platform" that supports the ore transport route at an elevated location a predetermined distance above the ground is composed of a beam that extends in the direction of the ore transport route and multiple pillars that support this beam from below. Generally, in bridge structures that support the travel paths of various heavy vehicles and heavy machinery, the beams that span between the pillars are made of steel materials with horizontally protruding flanges, such as H-shaped steel, to ensure the necessary strength (see Patent Document 2). This is also true for the "ore transport route platform" that supports the running rails of stacker devices, and in the "ore transport route platform," the beams that support heavy structures are generally made of steel materials with horizontally protruding flanges, such as H-shaped steel.

In this way, the "ore transport route frame" ensures the necessary strength by using steel materials with horizontally protruding flanges as the beam components. However, a problem with frames of this type is that ore spilling from the ore transport route above tends to accumulate on the top surface of the horizontally protruding flanges. If this accumulation is left unchecked, there is a risk that once the accumulation exceeds a certain level, the deposits will fall downward and hit people or equipment. To prevent such accidents, workers have had to regularly perform high-altitude work to remove the ore that has accumulated on the top surface of the flanges.

Japanese Unexamined Patent Publication No. 63-306127 Utility Model Registration No. 3218787

The purpose of this invention is to prevent ore that has spilled from the ore transport route from accumulating on the upper surfaces of the beams that make up the ore transport route's platform, thereby reducing or eliminating the workload involved in removing this deposit and preventing accidents caused by the falling of the deposit.

The inventors discovered that the above problem could be solved by designing a rack for an ore transport route with an inclined surface that covers the top surface of the flange, and thus completed the present invention. Specifically, the present invention provides the following:

(1) A platform for an ore transport route, comprising a beam supporting the ore transport route and multiple pillars supporting the beam at a predetermined height, wherein the beam is made of steel and has at least a web arranged vertically and a lower flange extending horizontally from the lower end of the web, and wherein an inclined surface is formed covering the upper surface of the lower flange and extending diagonally downward from the side of the web to reach the upper surface or outer end of the lower flange.

The ore transport route stand (1) prevents ore spilling from the ore transport route from accumulating on the upper surface of the beams that make up the ore transport route stand, thereby reducing or eliminating the workload of removing this deposit and preventing accidents caused by the falling of the deposit.

(2) A platform for an ore transport path described in (1), in which the inclination angle of the inclined surface is equal to or greater than the angle of repose of the ore being transported along the ore transport path.

According to the ore transport route frame of (2), by optimizing the inclination angle of the inclined surface in accordance with the properties of the ore actually being transported in the ore transport route frame described in (1), it is possible to more reliably prevent ore that has spilled from the ore transport route from accumulating on the upper surfaces of the beams that make up the ore transport route frame.

(3) A platform for an ore transport route as described in (1), in which the inclination angle of the inclined surface is 55° or more.

According to the ore transport route stand of (3), the inclination angle of the inclined surface of the ore transport route stand described in (1) is large enough to be effective for the various types of ores handled in mining and industrial facilities. This allows ore that spills from the ore transport route to slide quickly down the top surface of the beam, preventing the ore from accumulating on the top surface of the beam, even on ore transport routes that carry a variety of ores.

(4) A platform for an ore transport path described in any one of (1) to (3), in which the lower side edge of the inclined surface reaches the outer side edge of the lower flange.

The ore transport line platform of (4) eliminates the horizontal surface on the lower flange, which was previously prone to accumulation of fallen debris, and therefore more reliably achieves the benefits of the ore transport line platform of any of (1) to (3).

(5) A platform for an ore transport path described in any one of (1) to (4), wherein the inclined surface is formed by an inclined surface forming member having a cross-sectional shape that is approximately a right-angled triangle.

According to the ore transport route frame of (5), the ore transport route frame described in any of (1) to (4) can be obtained by additionally installing a simple, three-dimensional inclined surface forming member on an existing frame. This makes it possible to enjoy the above-mentioned effects of the ore transport route frame described in any of (1) to (4) even with existing ore transport equipment, simply by adding parts.

(6) A rack for an ore transport path as described in (5), wherein the corners of the inclined surface forming member facing the inclined surface have recessed portions formed by groove-shaped notches along the longitudinal direction of the inclined surface forming member.

With the ore transport route platform (6), even if the corners where the flanges and webs of the H-shaped steel beams intersect have rounded corners or protrusions such as welded buildups, the bottom and vertical surfaces of the inclined surface forming member can be tightly fitted to the surface of the beam without any gaps. This ensures that the inclined surface forming member is joined to the beam with stability and maintains a desirable aesthetic appearance, even when the above-mentioned rounded corners are present.

(7) A stand for an ore transport path described in (5) or (6), in which the inclined surface forming member has fixing magnets embedded in a surface other than the surface that constitutes the inclined surface.

The ore transport route stand (7) makes it easy to install inclined surface forming members on the steel material that makes up the beam. Furthermore, it is easy to replace inclined surface forming members as needed, including replacing them with other members that have a different inclination angle, for example.

(8) An ore transport facility comprising a frame for an ore transport path described in any one of (1) to (7), with an ore transport path for transporting ore placed on the upper surface side of the beam.

The ore transport equipment of (8) enjoys the above-mentioned effects of the ore transport route rack described in any of (1) to (7), making it possible to reduce maintenance costs while maintaining safety around the installation site during operation of the ore transport equipment.

(9) The ore conveying equipment described in (8), wherein the ore conveying path is a belt conveyor.

The ore transport equipment of (9) enjoys the above-mentioned effects of the ore transport path rack described in (8), making it possible to reduce maintenance costs while maintaining safety around the installation site during operation of the ore transport equipment equipped with a belt conveyor.

(10) The ore transport equipment described in (8), wherein the ore transport path is a running rail of a stacker device.

The ore transport equipment of (10) enjoys the above-mentioned effects of the ore transport route frame described in (8), making it possible to reduce maintenance costs while maintaining safety around the installation site during operation of the ore transport equipment equipped with a stacker device.

The present invention prevents ore that has spilled from the ore transport route from accumulating on the upper surfaces of the beams that make up the ore transport route's platform, thereby reducing or eliminating the workload involved in removing this deposit and preventing accidents caused by the falling of the deposit.

1 is a schematic diagram showing the overall configuration of an ore transport facility configured using a rack for an ore transport route of the present invention. FIG. 2 is a perspective view showing the structure of a main part of a rack for an ore transport route according to the present invention. FIG. 3 is a side view showing the shape of a side surface (a surface perpendicular to the longitudinal direction) of a beam constituting the ore transport path frame of FIG. 2 . 3 is a side view showing the shape of a side surface (a surface perpendicular to the longitudinal direction) of an inclined surface forming member that constitutes the inclined surface of the ore transport path frame of FIG. 2. [0023]FIG. FIG. 5 is a bottom view of the inclined surface forming member of FIG. 4 . FIG. 5 is a rear view of the inclined surface forming member of FIG. 4 .

The following describes preferred embodiments of the "ore transport route platform" of the present invention and the "ore transport equipment" that can be constructed using the platform. However, the present invention is not limited to the following embodiments.

<Ore transport route frame>
The "ore transport route frame" (hereinafter simply referred to as "frame") of the present invention is configured to include a beam that supports the ore transport route from below, and a plurality of supports that support the beam from below at a plurality of locations at a predetermined height. Figure 1 is a diagram that schematically shows an ore transport route frame 10, which is an example of a preferred embodiment of the present invention, and the overall configuration of an ore transport facility 100 configured using the frame.

In this specification, the term "ore transport path" refers to the equipment itself, such as a "belt conveyor," on which ore or other transported objects are directly placed and transported. However, it is not limited to this, and structures such as the aforementioned "stacker device running rails" and other running rails for moving heavy machinery that handles ore or other objects in a predetermined direction are also included as examples of "ore transport path" in this specification.

In the platform 10, the beam 1, which supports the ore transport path (running rails of the stacker device) 3 from below, is supported at multiple locations by multiple support columns 2 of a predetermined height. The support columns 2 may be any structure that can stably hold the beam 1, the ore transport path 3 placed above it, and other components of the ore transport equipment 100 at a predetermined height. Furthermore, it is preferable that the support columns 2 be of a height that ensures sufficient space for heavy machinery and workers to pass freely underneath the beam. The platform 10, which has the above basic configuration, is primarily characterized by the formation of an inclined surface 141 on the upper surface of the lower flange 11 of the steel material that makes up the beam 1, as shown in Figure 2.

As an example, the beam 1 constituting the frame 10 can be formed from an H-shaped steel beam having a lower flange 11, web 12, and upper flange 13, as shown in Figures 2 and 3. The steel material constituting the beam 1 may be such that the web 12 and each flange 11, 13 are joined by welding or the like, or may be formed as a single unit. Furthermore, the beam constituting the "frame" of the present invention is not limited to an H-shaped steel beam; it may be any steel material with at least a lower flange that extends horizontally from the lower end of a web that can be positioned vertically, or a shape equivalent to this. Specifically, the beam of the "frame" of the present invention can be formed from various types of steel beams, such as H-shaped steel beams, I-shaped steel beams, channel steel beams, and angle steel beams.

The inclined surface 141, a characteristic structure of the frame 10, is a slope that is installed to cover part, preferably the entire, of the upper surface of the lower flange 11 of the beam 1. This inclined surface 141 is a downward slope that extends diagonally downward from the side of the web 12 to reach the upper surface of the lower flange 11. Preferably, the lower end of the inclined surface 141 reaches the outer edge of the upper surface of the lower flange 11 and is joined to this portion, as shown in Figures 2 and 3, so that the entire upper surface of the lower flange 11 is covered by the inclined surface 141. The "side surface of the web 12" mentioned above refers to the vertical surface of the web 12, including the side, front, and back, that extends in the direction of travel of the ore transport path.

Incline surfaces 141 on the frame 10 can be installed anywhere on the upper surface of the lower flange 11 of the steel material forming the beam 1, as needed. However, when considering the overall configuration of the ore transport equipment constructed using the frame of the present invention, it is preferable to preferentially install this inclined surface in a location where ore spilling from the ore transport path (e.g., the running rails of a stacker device) is particularly likely to accumulate. As an example, in the case of a frame with multiple beams arranged in parallel, it is preferable to preferentially install the inclined surface on the upper surface of the lower flanges of a pair of beams located at each outer end in the direction perpendicular to the direction of travel of the ore transport path (the width direction of the beams), and in the portion that protrudes outward from the web in the width direction of the transport path.

The inclination angle of the inclined surface 141, i.e., the angle between the upper surface of the outward protruding portion of the lower flange 11 and the inclined surface 141, is preferably set to an angle equal to or greater than the angle of repose of the ore, etc., being transported along the ore transport path installed on the platform. The angle of repose of ore, coal, etc., handled at typical mining and industrial sites varies depending on particle size variations, humidity, and other conditions, but is generally within the range of 35° to 55°. For example, by setting the inclination angle of the inclined surface 141 to 55° or greater, it is possible to prevent ore spilling from the ore transport path 3 from accumulating on the upper surface of the beams 1 that constitute the ore transport path platform 10, even for various types of ores handled in typical mining and industrial facilities. Furthermore, by configuring the inclination angle to be 55° or greater, preferably 60°, and by configuring the entire upper surface of the lower flange 11 to be covered by the inclined surface 141 as described above, it is possible to more reliably prevent ore and the like that has spilled from the ore transport path 3 from accumulating on the upper surface of the beams 1 that make up the frame 10.

[Inclined surface forming member]
The inclined surface 141, which is a characteristic structure of the gantry 10, can be formed using an inclined surface forming member 14 having a triangular prism shape with a cross section that is a substantially right-angled triangle, as shown in Figures 2 to 5. The inclined surface forming member 14 is a substantially triangular prism shape member having two bottom surfaces that are substantially right-angled triangular, and three side surfaces that are the inclined surface 141 (the surface that constitutes the inclined surface 141 in the gantry 10), and two other surfaces that are perpendicular to each other other than the inclined surface 141, namely a vertical surface 142 and a horizontal surface 143. The material of the inclined surface forming member 14 is not particularly limited as long as it is a material that is durable and weather-resistant in accordance with the environment where the gantry 10 is installed, but resin or rubber is preferable in terms of being lightweight, inexpensive, and easy to process.

As shown in Figure 2, the inclined surface 141, a characteristic structure of the frame 10, can be formed by joining and fixing the inclined surface forming member 14, which is approximately triangular prism-shaped, with the horizontal surface 143 abutting against the upper surface of the lower flange 11 of the beam 1 and the vertical surface 142 abutting against the side surface of the web 12. It is preferable that the angle between the horizontal surface 143 abutting against the upper surface of the lower flange 11 of the beam 1 and the inclined surface 141 of the inclined surface forming member 14 be equal to or greater than the angle of repose of the ore or other material being transported on the ore transport path described above, or an angle of 55° or greater.

Furthermore, as shown in Figure 4, the inclined surface forming member 14 can have recessed portions 144 formed by groove-shaped cutouts along the longitudinal direction of the inclined surface forming member 14 at the corners facing the inclined surface 141. The recessed portions 144 are designed to maintain a good joint at the corners of the inclined surface forming member 14 by preventing interference between the corners of the inclined surface forming member 14 and protrusions such as rounded edges or welding buildups that exist in the parts of the beam 1 that abut the above-mentioned corners. They may be formed as grooves or recesses of a size and shape that can accommodate the various protrusions present on the beam 1 and perform the above-mentioned function.

Furthermore, as shown in Figures 5 and 6, it is preferable that the inclined surface forming member 14 has fixing magnets 145 embedded in the two other surfaces other than the surface that constitutes the inclined surface 141, i.e., the vertical surface 142 and/or the horizontal surface 143. In this case, it is preferable that the fixing magnets 145 are embedded so that the surface of each magnet is flush with the surface of each embedded surface (the vertical surface 142 and/or the horizontal surface 143), with only the surface of each magnet exposed. This makes it easier to install the inclined surface forming member 14 on the beam 1 and further improves the stability of the inclined surface forming member 14 relative to the beam 1 after installation.

The inclined surface forming member 14 having the fixing magnet 145 in the above-described manner can be easily installed on an existing frame. Furthermore, by installing the inclined surface forming member 14 on the beam 1 using the magnetic force of the fixing magnet 145, welding work for joining is not required, eliminating concerns that the heat from the welding work may affect the frame and reduce its strength, and non-destructive testing to confirm that the welds are sound is also unnecessary. Furthermore, installation using the magnetic force of the fixing magnet 145 is preferable to installation using bolts because it does not result in a reduction in strength due to the need to provide through holes for inserting bolts.

The method for covering the lower flange to form the inclined surface is not limited to the above-mentioned method. For example, a stay (metal fitting) bent into a "L" shape can be used, with a fixing magnet 145 attached to one of the bent surfaces for attaching to the lower flange 11, and a sliding plate for sliding the ore attached to the end of the other surface, forming an inclined surface for sliding the ore down.

<Ore transport equipment>
The ore conveying equipment 100 of the present invention can be constructed by placing an ore conveying path 3 for conveying ore, etc., on the upper side of the beam 1 of the ore conveying path frame 10, directly or via another member. Specifically, the ore conveying path 3 may be a belt conveyor, or as shown in FIG. 1, a running rail of a stacker device 4. The stacker device 4 is a cargo handling machine having a stacker device main body 41 that runs on a running rail and a boom 42 with a swiveling belt conveyor (see Patent Document 1). The ore conveying equipment of the present invention is not limited to the above-mentioned belt conveyor or stacker device, but is a technology that can be applied to various ore conveying facilities in general where conveyed objects, such as ore, may fall or scatter.

For example, when ore is stacked using ore transport equipment 100 in which a stacker device 4 is installed on the ore transport path (traveling rail) 3 on the platform 10, ore that would previously have fallen and piled up on the lower flange 11 can now be slid down the inclined surface 141 and quickly dropped downward at any time. This prevents the ore from piling up on the surface of the lower flange 11, and furthermore, when the ore is stacked to a height that interferes with the lower flange 11, it can also prevent the stacked ore from remaining on the lower flange.

REFERENCE SIGNS LIST 1 Beam 11 Lower flange 12 Web 13 Upper flange 14 Inclined surface forming member 141 Inclined surface 142 Vertical surface 143 Horizontal surface 144 Thickness reduction portion 145 Fixing magnet 2 Support 3 Ore conveying path (running rail of stacker device)
4 Stacker device 41 Stacker device body 42 Boom 10 Frame for ore transport path 100 Ore transport equipment

Claims (8)

A frame for an ore transport path comprising a beam supporting the ore transport path and a plurality of columns supporting the beam at a predetermined height position,
The beam is made of a steel material having at least a web arranged along the vertical direction and a lower flange extending horizontally from a lower end of the web,
An inclined surface is formed covering the upper surface of the lower flange, extending obliquely downward from the side surface of the web and reaching the upper surface or outer end of the lower flange ,
the inclined surface is formed by an inclined surface forming member having a cross-sectional shape of a substantially right-angled triangle,
The inclined surface forming member has a corner portion facing the inclined surface, the corner portion being formed by cutting out a groove-like portion along the longitudinal direction of the inclined surface forming member .
A platform for ore transport routes. The inclination angle of the inclined surface is equal to or greater than the angle of repose of the ore that is the object to be transported on the ore transport path.
A rack for an ore transport line according to claim 1. The inclination angle of the inclined surface is 55° or more.
A rack for an ore transport line according to claim 1. The lower side end of the inclined surface reaches the outer side end of the lower flange.
A platform for an ore transport route according to any one of claims 1 to 3. The inclined surface forming member has a fixing magnet embedded in a surface other than the surface that forms the inclined surface.
A platform for an ore transport route according to any one of claims 1 to 4 . The ore transport line frame according to any one of claims 1 to 5 ,
An ore transport path for transporting ore is placed on the upper surface side of the beam.
Ore transport equipment. The ore conveying path is a belt conveyor.
The ore conveying facility according to claim 6 . The ore conveying path is a running rail of a stacker device.
The ore conveying facility according to claim 6 .