JP2013035676A - Conveying device - Google Patents

Abstract

A conveying device capable of reliably preventing material falling from a return belt from adhering to the frame is provided. The frame extends between a predetermined section and extends in the conveying direction. A pair of pulleys installed at both ends in the extending direction, and a belt 3 wound endlessly around the pair of pulleys. The belt 3 moves on the carrier roller 32 supported by the frame 2 on the carrier belt 31 on the side where the material (particles and particles such as iron ore, coal, slag and lime) 10 is transported. A return belt 33 on the side opposite to the conveying side moves on a return roller 34 supported by the frame 2. The return belt 33 is located below the lower end portion of the frame 2.
[Selection] Figure 1

Description

  The present invention relates to a transport device for transporting granular materials such as iron ore, coal, slag and lime and granular materials in a predetermined section.

Conventionally, in ironworks, cement factories, and the like, granular materials and granular materials such as iron ore, coal, slag, and lime are conveyed by a belt conveyor (conveying device). As a belt conveyor provided in such a facility, one having a structure in which an endless belt is wound around a pair of pulleys provided in a frame composed of an upper surface truss and a lower surface truss is generally used. Is.
In addition, in the above facilities, a considerable number of the belt conveyors are provided in the site, and the installation position is also high, so that the work efficiency related to maintenance management is improved, and the work time and cost are reduced. There is a current situation that is required. For example, when a material to be conveyed falls from the belt and adheres to the frame, the frame is corroded. For this reason, since it is necessary to frequently clean the frame to which the material has adhered, measures are taken to prevent the material from dropping from the belt. In particular, the return belt on the opposite side of the belt that conveys the material of the belt moves in a direction where the conveying surface that conveys the material is on the lower side, and the material adhering to the return belt is likely to fall. Measures are taken to prevent material from falling from the return belt.

For example, in Patent Document 1, the return roller lacks its central portion and supports only the side of the return belt, and the material is dropped by reducing the contact surface between the return belt and the return roller. A constraining belt conveyor is disclosed.
Patent Document 2 discloses a belt conveyor that prevents the material from falling by forcibly deforming the substantially entire length of the return belt into a cylindrical shape so that the conveying surface is inside.

JP 2001-301935 A JP-A-6-64729

However, in the belt conveyor of Patent Document 1, even if the center portion of the return roller is absent, the effect of reducing the fall of the material from the return belt is not sufficient, and the material is reliably prevented from adhering to the frame. I can't.
Further, in the belt conveyor of Patent Document 2, since the belt is distorted by forcibly deforming the return belt into a cylindrical shape, the life of the belt may be shortened, and the belt may be inspected, repaired or replaced. It will take effort and cost for maintenance.

  The present invention has been made in view of the above-described problems, and an object of the present invention is to provide a transport device that can reliably prevent the material falling from the return belt from adhering to the frame.

  In order to achieve the above object, a transport apparatus according to the present invention is a transport apparatus for transporting granular materials and granular materials such as iron ore, coal, slag, and lime in a predetermined section, and is installed in the predetermined section. A frame extending in the conveying direction, a pair of pulleys installed at both ends in the extending direction of the frame, and a belt wound endlessly around the pair of pulleys, A carrier belt on the side carrying the material moves on a carrier roller supported by the frame, and a return belt on the side opposite to the side carrying the material moves on a return roller supported by the frame, The return belt is located below the lower end of the frame.

  In the present invention, since the return belt is positioned below the lower end of the frame, even if the material attached to the lower surface side of the return belt falls from the return belt, the material constitutes the frame. Adherence to the member can be reliably prevented.

Further, in the transport device according to the present invention, the carrier roller and the return roller are structural members of the frame, and are provided on the lower chord member provided on the lower end side of the frame and extending in the extending direction of the frame. It may be supported.
By doing so, the carrier roller and the return roller are reliably supported by the frame.

In the transport device according to the present invention, the structural material of the frame may also serve as a carrier roller mount to which the carrier roller is attached and fixed to the frame.
By doing in this way, the structure of a conveying apparatus can be simplified.

In the transport device according to the present invention, the carrier roller and the return roller are structural members of the frame and are provided on the upper end side of the frame and extend in a direction perpendicular to the extending direction of the frame. It may be supported by being suspended from the horizontal bundle.
By doing so, the carrier roller and the return roller are reliably supported by the frame.

  According to the present invention, since the return belt is located below the lower end of the frame, even if the material attached to the return belt falls from the return belt, the material constitutes the frame. It is possible to reliably prevent the frame from being corroded, and it is possible to prevent the frame from being corroded and to reduce the number of cleaning, inspection and repair / reinforcement of the frame. Such labor can be reduced and the cost can be reduced.

It is a figure which shows an example of the conveying apparatus by 1st Embodiment of this invention. It is a figure which shows an example of the conveying apparatus by 2nd Embodiment of this invention. It is a figure which shows the modification of the conveying apparatus by 2nd Embodiment of this invention. It is a figure which shows the other modification of the conveying apparatus by 2nd Embodiment of this invention.

(First embodiment)
Hereinafter, the conveyance apparatus by 1st Embodiment of this invention is demonstrated based on FIG.
A conveying apparatus 1A according to the first embodiment shown in FIG. 1 is a facility such as an iron mill or a cement factory, and is a granular material and a granular material (hereinafter referred to as a material 10) such as iron ore, coal, slag, and lime. Is installed in a predetermined section.
1 A of conveying apparatuses are the frame 2 constructed in the predetermined area, and extended in the conveyance direction (direction orthogonal to the paper surface of FIG. 1), and a pair of pulleys (not shown) installed at both ends of the extending direction of the frame 2 And a belt 3 wound endlessly on a pair of pulleys.

The frame 2 is formed in a substantially rectangular parallelepiped frame extending in the transport direction, such as a truss frame structure or a gallery frame structure, for example, and includes an upper surface truss 21 constituting the upper surface of the frame body, a lower surface truss 22 constituting the lower surface, and an extension. A pair of side trusses 23, 23 constituting side surfaces along the current direction are provided.
A pair of upper chord members 24, 24 extending in the extending direction of the frame 2 are disposed at both end portions 21 a, 21 a of the upper surface truss 21, and the extending direction of the frame 2 is disposed at both end portions 22 a, 22 a of the lower surface truss 22. A pair of lower chord members 25, 25 extending in the direction is arranged.

Between the pair of upper chord members 24, 24, a plurality of upper surface horizontal bundle members 26 extending in the horizontal direction perpendicular to the extending direction of the upper chord member 24 are disposed. 24 are fixed respectively. A lower horizontal bundle 27 extending in the horizontal direction orthogonal to the extending direction of the lower chord 25 is disposed between the pair of lower chords 25, 25. Each is fixed.
A plurality of upper surface horizontal bundle members 26 and lower surface horizontal bundle members 27 are arranged at predetermined intervals in the extending direction of the frame 2.

  The belt 3 moves on the carrier roller 32 supported on the frame 2 by the carrier belt 31 on the side carrying the material 10, and the return belt 33 on the side opposite to the side carrying the material 10 is supported on the frame 2. It moves on the roller 34.

  A plurality of carrier rollers 32 are arranged at predetermined intervals in the extending direction of the frame 2 over substantially the entire length of the frame 2. Further, the carrier roller 32 is divided into three roller bodies 32a, 32b, 32c in a horizontal direction orthogonal to the extending direction of the frame 2, and the roller body 32b positioned at the center is a roller positioned at both ends. On the lower side of the bodies 32a and 32c, the roller bodies 32a and 32c at both ends are arranged so as to be inclined downward toward the roller body 32b at the center.

For this reason, the carrier belt 31 on the carrier roller 32 is in a state where the center portion is depressed downward along the carrier roller 32 when the material 10 is placed.
Such a carrier roller 32 is supported by the lower chord member 25 on the lower horizontal bundle member 27 via the carrier roller support member 35. As a result, the pair of carrier rollers 32 are supported by the lower chord members 25, 25.

Usually, the carrier roller 32 is fixed to a carrier roller frame 42 (see FIG. 2) extending in a direction orthogonal to the extending direction of the frame 2 via a carrier roller support member 35, and the carrier roller frame 42 is supported by the frame 2. Has been.
In the present embodiment, the lower horizontal bundle 27 also serves as the carrier roller frame 42.

A plurality of return rollers 34 are arranged at predetermined intervals in the extending direction of the frame 2 over substantially the entire length of the frame 2.
Further, the return roller 34 is suspended and supported by the lower chord members 25 and 25 via a return roller support member 36. For this reason, the return roller 34 is arranged below the lower surface truss 22.
At this time, the return belt 33 on the return roller 34 is also arranged below the lower surface truss 22.

Next, the operation and effect of the above-described transport apparatus 1A will be described with reference to the drawings.
According to the conveying apparatus 1A according to the first embodiment, since the return belt 33 is disposed below the lower surface truss 22 at the lower end portion of the frame 2, the material 10 attached to the lower surface side of the return belt 33 falls. The material 10 can be reliably prevented from adhering to the frame 2.
And since it can prevent reliably that the material 10 adheres to the flame | frame 2, the corrosion of the flame | frame 2 can be prevented and the effort concerning the maintenance of the conveying apparatus 1A can be reduced and the cost can be reduced. Can do.
Further, since the lower horizontal bundle 27 also serves as the carrier roller mount 42, the structure of the transport device 1A can be simplified.

(Second Embodiment)
Next, the second embodiment will be described with reference to the accompanying drawings. However, the same or similar members and parts as those in the first embodiment are denoted by the same reference numerals, and the description thereof is omitted. A different configuration will be described.
As shown in FIG. 2, in the conveyance device 1 </ b> B according to the second embodiment, the carrier roller 32 and the return roller 34 are supported by the upper surface horizontal bundle 26 of the upper surface truss 21 via a pair of suspension members 41, 41. .
The pair of suspending members 41, 41 is a bar-shaped steel material extending in the vertical direction, the upper end portion 41 a is fixed to the upper surface horizontal bundle member 26, and the lower end portion 41 b is located below the lower surface truss 22.
The pair of suspending members 41 and 41 are fixed to both end portions 26a and 26a of the upper surface horizontal bundle 26, respectively.

In the transport device 1B according to the second embodiment, the carrier roller 32 is fixed to a carrier roller frame 42 extending in a direction orthogonal to the extending direction of the frame 2 via a carrier roller support member 35.
A carrier roller frame 42 is installed between the lower ends 41b of the pair of suspension members 41, 41, and both ends of the carrier roller frame 42 are fixed to the lower ends 41b of the pair of suspension members 41, 41. . A return roller support member 36 is fixed to the lower end portion 41b of the pair of suspending members 41, 41.
The carrier belt 31 and the return belt 33 are positioned below the lower surface truss 22 when installed on the carrier roller 32 and the return roller 34.

In the transport device 1B according to the second embodiment, the return belt 33 is disposed below the lower surface truss 22 at the lower end of the frame 2, so that the material 10 attached to the return belt 33 falls and adheres to the frame 2. This can be surely prevented.
And since it can prevent reliably that the material 10 adheres to the flame | frame 2, the corrosion of the flame | frame 2 can be prevented and the effort concerning the maintenance management of the conveying apparatus 1B can be reduced, and cost reduction can be aimed at. Can do.
Furthermore, in the second embodiment, since the carrier belt 31 is also arranged below the lower truss 22 at the lower end of the frame 2, the material 10 dropped from the carrier belt 31 is reliably prevented from adhering to the frame 2. can do.

As mentioned above, although embodiment of conveyance apparatus 1A, 1B by this invention was described, this invention is not limited to said embodiment, In the range which does not deviate from the meaning, it can change suitably.
For example, in the above-described embodiment, the carrier roller 32 and the return roller 34 are supported by the lower chord member 25 or the upper horizontal bundle member 26, but instead of the lower chord member 25 or the upper horizontal bundle member 26, the upper chord member 24 or It may be supported by structural members of the frame 2 such as the lower horizontal bundle 27.

Further, in the second embodiment described above, the carrier roller 32 and the return roller 34 are disposed below the lower surface truss 22, but the carrier roller 32 includes the lower surface truss 22 as in the conveying device 1C shown in FIG. The return roller 34 may be positioned lower than the lower truss 22.
In the second embodiment described above, the carrier roller 32 and the return roller 34 are suspended and supported by the upper surface horizontal bundle member 26 via a pair of suspension members 41, 41 and are disposed below the lower surface truss 22. However, as in the conveyance device 1D shown in FIG. 4, the carrier roller 32 and the return roller 34 are suspended and supported by the lower chord material 25 via a pair of suspension members 41, 41, and below the lower truss 22. May be arranged.
In the above-described embodiment, the transport apparatus 1A is installed in a facility such as a steel mill or a cement factory for transporting the material 10 in a predetermined section, but instead of the facility, for example, the material 10 is transported. You may install in the conveyance area in the field | areas, such as a mine at the time of mining, the conveyance area when the material 10 is loaded into a ship, the conveyance area when the material 10 is unloaded from a ship.

1A, 1B, 1C Conveying device 2 Frame 3 Belt 10 Material (Iron ore, coal, slag, lime and other granular materials and powder)
25 Lower chord material 26 Upper surface horizontal bundle material 31 Carrier belt 32 Carrier roller 33 Return belt 34 Return roller 42 Carrier roller mount

Claims (4)

A transport device for transporting granular or granular materials such as iron ore, coal, slag and lime in a predetermined section,
A frame constructed in a predetermined section and extending in the transport direction;
A pair of pulleys installed at both ends in the extending direction of the frame;
A belt wound endlessly on the pair of pulleys,
The belt moves on a carrier roller supported on the frame by a carrier belt on the side carrying the material, and a return belt on the side opposite to the side carrying the material moves on a return roller supported on the frame. And
The transport device according to claim 1, wherein the return belt is positioned below a lower end portion of the frame.   The carrier roller and the return roller are supported by a lower chord member, which is a structural member of the frame, is provided on the lower end side of the frame and extends in the extending direction of the frame. Item 2. The transfer device according to Item 1.   The transport apparatus according to claim 1 or 2, wherein the structural material of the frame also serves as a carrier roller mount to which the carrier roller is attached and fixed to the frame.   The carrier roller and the return roller are suspended from a horizontal bundle member that is a structural member of the frame and that is provided on the upper end side of the frame and extends in a direction perpendicular to the extending direction of the frame. The conveying device according to claim 1, wherein

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