JPH06115656A - Construction of dust protection skirt part for belt conveyor - Google Patents

Abstract

PURPOSE:To provide a construction of a dust protection skirt part by which appropriate contact pressure is always held on both side of the surface of a belt conveyor, and contact pressure adjusting work of a skirt belt due to wear is dispensable. CONSTITUTION:Side plates 2, 2 are provided on both side of a conveying passage by means of a belt conveyor 1, and dust protection skirt belts 3 are provided along the lower edges of the side plates 2. The skirt belt 3 is fitted slidably in the vertical direction against the side plate 2, the skirt belt 3 is contactedly pressed on the surface of the belt conveyor by its dead weight, and hence the skirt belt 3 is constituted so as to automatically descend, even if the lower end edge of the skirt belt 3 is worn.

Description

Detailed Description of the Invention

[0001]

BACKGROUND OF THE INVENTION 1. Field of the Invention The present invention relates to a structure of a dustproof skirt portion arranged on both sides of a long and wide belt conveyor provided for transferring ore or crushed stone to an isolated place and chemical raw materials. Is.

[0002]

2. Description of the Related Art Conventionally, for example, a long and wide belt conveyor has been used for transporting ore or the like unloaded at a port, transporting crushed stones from a quarry, or transporting powdered particles (hereinafter referred to as transported products). There is. In order to prevent lateral movement of the conveyed object due to vibration and scattering of dust emitted from the conveyed object in the lateral direction during the conveyance of the conveyed object by such a belt conveyor, as shown in FIG.
(22) and the side plate (22), a flexible skirt belt (2) whose bottom edge contacts the surface of the belt conveyor (21).
3) is provided.

[0003]

However, since the conventional skirt belt (23) is fixed to the side plate (22) at the bottom by means of bolts and nuts, the lower end portion of the skirt belt (23) is a belt conveyor (23). When it is worn due to the contact of (21), a gap is created between the belt conveyor surface and the sealability, and if left unattended, dust leaks from the gap and scatters in the transport path and its surroundings, driving the belt conveyor. It also has an adverse effect on the support part and also causes pollution. Therefore, each time the skirt belt wears, the bolts must be loosened and the skirt belt (23) must be lowered.

The present invention provides a structure of a dustproof skirt portion which can always maintain an appropriate contact pressure on the surface of a belt conveyor and which does not require the above-mentioned adjustment work.

[0005]

The present invention has solved the above problems by attaching a skirt belt slidably to the side plate in the vertical direction. That is, the structure of the dust-proof skirt portion of the present invention, in the dust-proof skirt portion of the belt conveyor, in which side plates are provided on both sides of the conveyance path by the belt conveyor, and skirt belts for dust protection are provided along the lower ends of the side plates. The skirt belt is slidably attached to the side plate in the vertical direction, and is pressed against the surface of the belt conveyor by its own weight.

As means for attaching the skirt belt to the side plate in a freely descendable manner, for example, a strip-shaped metal plate is fixed along the upper end of the skirt belt, and a plurality of slide bars are vertically spaced from this metal plate. It is preferable that a bracket that supports the slide bars so as to be vertically movable is provided on the outer surface of the side plate and that the slide bars are inserted through the brackets.

The length and the width or thickness in the height direction of the skirt belt applied to the present invention are appropriately determined depending on the scale of the belt conveyor. In some cases, length is 100-200cm, width is 30-40cm, thickness is 0.8-12c
About m is preferable for controlling the self-weight pressure, and the Shore hardness of the skirt belt is preferably a flexible elastic sheet of 50 degrees or less, for example, a rubber sheet, in consideration of the friction due to the self-weight pressure with the belt conveyor. If it is larger than 100 degrees, the belt conveyor is worn.

Further, if an auxiliary skirt belt having a shorter hanging dimension than the skirt belt is provided on the outer surface side of the skirt belt and the auxiliary skirt belt is slidably contacted with the end edge side of the belt conveyor, the dustproof effect is further improved. improves.

[0009]

[Operation] The skirt belt, which is attached to the outer surface of the side plates standing upright on both sides of the conveyor belt by the belt conveyor so as to be able to descend, is elastically pressed to both surfaces of the belt conveyor by its own weight and elasticity. It has the same dustproof effect as before, and even if the lower end of the skirt belt wears, it will naturally drop by the amount of wear due to its own weight, making contact pressure adjustment unnecessary, and ensuring a normal sealing action for a long period until replacement is required. Play.

[0010]

DETAILED DESCRIPTION OF THE PREFERRED EMBODIMENTS Referring to the drawings showing the embodiments of the present invention, FIG. 1 is a sectional view of a conveying path, FIG. 2 is a perspective view of a skirt belt, (1) is a belt conveyor, and (2) ) Is a side plate standing on both sides of the belt conveyor (1),
And (3) shows a skirt belt.

In the dustproof skirt portion of the conveying path of the belt conveyor of the present invention, the skirt belt (3) has a rubber sheet having a thickness of 10 mm, a length of 150 cm and a width of 30 cm in the height direction and a Shore hardness of 50 degrees. Is used, and a strip-shaped metal plate (4) having a width of 50 mm and a thickness of 6 mm is fixed along the upper end thereof.
And this metal plate (4) is provided with a stopper (5) protruding outward at the upper end with a space of 40 cm. Length 25 cm, width 50 mm
The slide bar (6) made of a metal plate is fixed at its lower end with a screw (7) so that the free end projects vertically upward, and the skirt belt (3) hangs downward.

On the other hand, on the outer surface of the side plate (2), there are provided brackets (8) and (8) for supporting the slide bars (6) and (6) so as to be vertically movable. The slide bar (6) is inserted into the hollow portion of the skirt belt (3), and the skirt belt (3) is attached to the side plate (2) so as to be movable up and down.

In order to further improve the dustproof function, FIG.
The skirt belt part has a double structure. That is, on the outer surface side of the skirt belt (3), an auxiliary skirt belt having a shorter hanging dimension than the skirt belt (3).
(9) is provided, and the auxiliary skirt belt (9) is further provided on the outside of the skirt belt (3) for dustproof sealing. According to this aspect, since the skirt belt portion has the double structure, it is possible to more effectively prevent the dust from being blown out to the outside of the belt conveyor (1).
This auxiliary skirt belt (9) is the above skirt belt (3).
The same rubber material as described above may be used, or another flexible sheet material such as thick non-woven fabric or woven fabric may be applied.

[0014]

As described above, the present invention provides a belt conveyor.
Side plates (2) are installed on both sides of the transport path according to (1).
Along the lower edge of its side plate (2) to prevent dust.
Dust-proof scar on belt conveyor with cart belt
The skirt belt (3) on the side
Sliding vertically for rate (2)
Contact the surface of the belt conveyor (1) by its own weight.
Because it is configured to be pressed, the scar
Of the belt conveyor (1) due to its own weight and elasticity.
The bottom edges of the skirt belt (3) are elastically pressed against both surfaces.
It has the same dustproof effect as before and the skirt bell
Even if the lower edge of the grate (3) is worn, the weight of the
And then adjust the contact pressure of the skirt belt (3)
Long-term until the time when replacement is required
A normal dustproof sealing action is exerted over the space.

[Brief description of drawings]

FIG. 1 is a vertical cross-sectional view of a conveyance path by a belt conveyor.

FIG. 2 is a perspective view of a skirt belt.

FIG. 3 is a vertical cross-sectional view showing an aspect in which the skirt belt portion has a double structure.

FIG. 4 is a vertical cross-sectional view of a transport path using a conventional belt conveyor.

[Explanation of symbols]

 1. Belt conveyor 2. Side plate 3. Skirt belt

Claims (2)

[Claims] 1. A dust-proof skirt portion of a belt conveyor, wherein side plates are provided on both sides of a conveyance path by a belt conveyor, and a skirt belt for dust protection is provided along a lower edge of the side plate. A structure of a dust skirt portion of a belt conveyor, which is slidably attached to a side plate in a vertical direction and is configured to be in contact with the surface of the belt conveyor by its own weight. 2. The structure of the dustproof skirt portion according to claim 1, wherein an auxiliary skirt belt having a shorter hanging length than the skirt belt is provided on the outer surface side of the skirt belt.