JP2016183031A - belt conveyor - Google Patents

Abstract

PROBLEM TO BE SOLVED: To provide a belt conveyor that, when conveying conveyed articles, can prevent a conveying belt and a skirt rubber from being abraded and prevent the conveyed articles from falling down and scattering so as to stably convey the conveyed articles.SOLUTION: A belt conveyor comprises a skirt structure 3, which blocks a space between a conveyance surface 11 and the structure to prevent conveyed articles from falling down, below a shoot which guides and supplies the conveyed articles onto a conveyance surface 11 of a conveying belt 1. In the conveying belt 1, both side parts in a width direction are tiltedly formed so that both side parts are made higher than a center part thereof. The skirt structure 3 comprises: a pair of skirt plate parts 6 which are formed to hang down toward the conveyance surface 11 and arranged at an interval between the conveyance surface 11 and the structure in both side parts in a width direction of the conveying belt 1; and a pair of elastic skirt parts 7 which are mounted on the outsides of the skirt plate parts 6 to hang down toward the conveyance surface 11 and formed to contact both side parts of the conveyance surface 11. Positions of lower ends of the elastic skirt parts 7 are arranged at positions higher than positions of lower ends of the skirt plate parts 6.SELECTED DRAWING: Figure 2

Description

  The present invention relates to a belt conveyer that conveys conveyed items such as coal, powdered coke, and cement.

The belt conveyor is a transfer part that drops the conveyed product from the upstream conveyor to the conveying belt of the downstream conveyor, receives the conveyed item falling from the chute on the conveying surface of the conveying belt, and with the movement of the conveying surface of the conveying belt, The transported objects placed on the transport surface are sequentially transported. However, when the conveyed product is dropped from the chute onto the conveying surface of the conveying belt, the conveyed item may fall around the conveying belt due to the impact of the dropping. In addition, when the conveyed product includes powdery material such as coal, powdered coke, cement, or dust, such fine powder is likely to be scattered around the conveying belt due to the impact of dropping.
In view of this, a skirt structure that closes the space between the conveyor belt and the conveying surface of the conveyor belt is provided at the lower part of the chute of the belt conveyor to prevent the conveyed article from falling or scattering.

  For example, in Patent Document 1, guide plates formed along the longitudinal direction of a conveyor belt (conveyor belt) are provided so as to be inclined in a funnel shape on the center side of the conveyor belt. The upper ends of the rubber elastic plates formed along the longitudinal direction of the belt are respectively attached, the lower ends of both rubber elastic plates are moved to the center side of the conveyor belt, and the outer surfaces of these lower ends are connected to the conveyor belt. A skirt structure has been proposed in which the surface is elastically contacted. According to this skirt structure, the bulk material (conveyed material) thrown into the chute is guided by a guide plate inclined in a funnel shape and falls to the central portion of the conveyor belt. It is described that it is difficult for a loose object to hit the plate and wear is suppressed.

  Further, Patent Document 2 discloses a skirt that is provided on the transfer belt of the downstream conveyor so as to be hermetically sealed at the connecting portion that drops the conveyed product from the upstream conveyor to the transfer belt of the downstream conveyor, and a drive mechanism that changes the position of the skirt. A belt position detector for detecting the position of the conveyor belt, and a skirt position controller for driving the drive mechanism based on the position information detected by the belt position detector and controlling the position of the skirt according to the position of the conveyor belt Has been proposed. In this belt conveyor apparatus, since the position of the skirt is controlled according to the position of the conveying belt based on the position information of the conveying belt of the downstream conveyor detected by the belt position detecting unit, even if the conveying belt meanders, It is described that the position of the skirt can be adjusted following the amount, and dust spills and jets of conveyed objects, and dust scattering caused by material collision can be prevented.

JP-A-8-258940 JP 2014-108851 A

  As described in Patent Document 1 or Patent Document 2, a skirt rubber (rubber elastic plate, skirt) is provided at the connecting portion of the belt conveyor so as to prevent the conveyed product from spilling. However, when an object having a coarse particle size is conveyed, the conveyed object is bitten between the skirt rubber and the conveyor belt, and the conveyor belt is partially worn, so that replacement may be forced.

  The present invention has been made in view of such circumstances, and can prevent the wear of the conveyor belt and the skirt rubber when conveying a conveyed product including a powder having a small particle size to a coarse particle size. An object of the present invention is to provide a belt conveyor capable of stably transporting a transported object by preventing the falling and scattering of the sheet.

  The present invention is a belt conveyor for placing and transporting a transported object on a transport surface of a transport belt, wherein the transport surface is disposed below a chute for guiding and supplying the transported object on the transport surface of the transport belt. And a skirt structure that prevents the transported article from falling, and the transport belt is provided with both sides inclined so that the both sides in the width direction are higher than the center. The skirt structure includes a pair of skirt plates that are provided to hang down toward the conveyance surface at both sides in the width direction of the conveyance belt and are spaced from the conveyance surface, A pair of elastic skirt portions that are attached to the outside of the skirt plate portion and hang down toward the conveyance surface and are in contact with both side portions of the conveyance surface, wherein the lower end position of the elastic skirt portion is the skirt plate Higher than the bottom position of the part It is placed in.

When the transported material is supplied to the chute, the transported material falls on the transport surface of the transport belt installed at the lower part of the chute. At this time, most of the transported material dropped to the outside by the skirt plate part. Since the movement is restricted, the conveyed product can be fastened on the conveying surface at the center in the width direction of the conveying belt inside the skirt plate.
In addition, even if a conveyed product that is smaller than the interval between the lower end of the skirt plate portion and the conveying surface of the conveying belt tries to move outside the skirt plate portion, it is attached to the outside of the skirt plate portion. The elastic skirt portion (skirt rubber) can block the elastic skirt portion, and the conveyed product can be prevented from dropping or scattering outside the conveying belt beyond the elastic skirt portion.
In this case, the lower end position of the elastic skirt portion is arranged in contact with the inclined portions on both sides in the width direction of the transport belt, and the lower end position of the elastic skirt portion is higher than the lower end position of the skirt plate portion. Is arranged. For this reason, the conveyed product that enters the outside of the skirt plate portion through the gap between the skirt plate portion and the conveyance belt is restricted from moving to the upper side of the inclined surface due to the inclination of both side portions of the conveyance belt. Also, among the transported items that have fallen from the chute, those having a relatively large shape that is larger than the gap between the skirt plate portion and the transport belt come into contact with the skirt plate portion and are bounced back to the central portion of the transport belt. The elastic skirt does not hit directly. Even if the conveyed product reaches the elastic skirt portion, the conveyed product that enters the outside of the skirt plate portion in this way is like a dust that is light in weight and small in size. For this reason, the elastic skirt portion is not spread out by the conveyed product (dust), and the conveyed item is caught between the elastic skirt portion and the conveying belt, and the elastic skirt portion and the conveying belt are prevented from being worn. Since it can do, a contact state with a conveyance surface can be maintained favorable. Therefore, the conveyed product can be held inside the skirt structure.
Furthermore, since the lower end position of the skirt plate portion is spaced apart from the conveying surface with a distance from the conveying belt, the skirt plate portion and the conveying belt slide and wear as the conveying belt runs. Can be prevented, and damage caused by these sliding operations can be avoided.
As described above, in the conveyor belt of the present invention, when transporting a transported object including a powder having a small particle diameter to a coarse particle, wear of the transport belt and the elastic skirt can be prevented. Scattering can be prevented, and the conveyed product can be stably conveyed over a long period.

  In the belt conveyor of the present invention, an interval between the lower end of the skirt plate portion and the conveyance surface of the conveyance belt is set to 5 mm or more and 50 mm or less, and between the lower end position of the skirt plate portion and the lower end position of the elastic skirt portion. The height may be 5 mm or more and 50 mm or less, and the horizontal distance from the outer surface of the skirt plate portion to the elastic skirt portion may be 20 mm or more and 120 mm or less.

When the distance between the lower end of the skirt plate portion and the conveying surface of the conveying belt is less than 5 mm, it becomes easy to bite the conveyed product, and the conveying surface of the conveying belt is likely to be partially worn. On the other hand, if the distance between the lower end of the skirt plate portion and the conveying surface of the conveying belt exceeds 50 mm, the conveyed product is likely to come out of the skirt plate portion, that is, between the lower end of the skirt plate portion and the conveying surface of the conveying belt. There is an increase in the amount of the conveyed product that passes through the outside of the skirt plate portion and the bite of the conveyed product between the elastic skirt portion and the conveying belt, and the elastic skirt portion and the conveying belt may be worn.
Further, when the height between the lower end position of the skirt plate portion and the lower end position of the elastic skirt portion is less than 5 mm, a sufficient horizontal distance from the outer surface of the skirt plate portion to the elastic skirt portion cannot be secured. On the other hand, if the height between the lower end position of the skirt plate portion and the lower end position of the elastic skirt portion exceeds 50 mm, a horizontal distance from the outer surface of the skirt plate portion to the elastic skirt portion is secured due to the inclination of the conveying surface. Therefore, there is a possibility that the elastic skirt portion becomes short, and it becomes impossible to follow the vertical fluctuation of the conveying surface of the conveying belt.
Further, when the horizontal distance from the outer surface of the skirt plate portion to the elastic skirt portion is less than 20 mm, the elastic skirt portion and the conveyor belt are easily worn. On the other hand, if the horizontal distance from the outer surface of the skirt plate part to the elastic skirt part exceeds 120 mm, the elastic skirt part becomes shorter due to the inclination of the conveying surface, and can follow the vertical fluctuation of the conveying surface of the conveying belt. There is a risk of disappearing.

  According to the present invention, when transporting a transported object including a powder having a fine particle diameter to a coarse particle, it is possible to prevent the transport belt and the elastic skirt from being worn, and to prevent the transported object from falling and scattering, It is possible to carry the transported object stably.

It is a schematic diagram which shows embodiment of the belt conveyor which concerns on this invention. It is sectional drawing which shows the skirt structure of the belt conveyor shown in FIG. It is principal part sectional drawing of a skirt structure.

Embodiments of the present invention will be described below with reference to the drawings.
1 to 3 are schematic views showing a belt conveyor 100 according to an embodiment of the present invention.
The belt conveyor 100 is configured to convey a material 9 such as coal, powdered coke, cement, and the like on the conveying surface 11 of the conveying belt 1 and guide the conveyed material 9 onto the conveying surface 11 of the conveying belt. A chute 2 to be supplied, a conveyor belt 1 that is installed in the lower part of the chute 2 and conveys a conveyed product 9 supplied from the chute 2, and supports the conveyor belt 1 from the opposite side of the conveyor surface 11 and moves in the conveyance direction. And a skirt structure 3 that closes the space between the transport surface 11 of the transport belt 1 and prevents the transported article 9 from dropping or scattering.

  As shown in FIG. 1, the conveyor belt 1 is configured by an endless belt wound around a pulley 5, and the conveyor belt 1 is lowered from below by a plurality of carrier rollers 4 arranged at intervals between the pulleys 5. It is supported. Then, by rotating the pulley 5 with a drive source (not shown), the conveyor belt 1 can travel in the conveyance direction indicated by the white arrow, and the conveyance object 9 placed on the conveyance surface 11 is conveyed. Be able to.

Further, as shown in FIG. 2, the conveyor belt 1 is provided with both sides inclined at the lower part of the chute 2 so that both sides in the width direction are higher than the central part. A central portion in the direction is supported from below by a short carrier roller 41 disposed horizontally, and both side portions in the width direction are supported from below by a pair of guide plates 45 inclined inward.
The guide plate 45 is made of super hard polyethylene having excellent wear resistance and self-lubricating properties, and supports the transport belt 1 satisfactorily without obstructing the travel of the transport belt 1 due to its lubricity. Be able to.

The skirt structure 3 is installed at the lower part of the chute 2 as shown in FIGS. 1 and 2, and the conveyed product 9 falls or scatters so as to cover the conveying surface 11 of the conveying belt 1 at the lower part of the chute 2. This is provided with a pair of skirt plate portions 6 and a pair of elastic skirt portions 7 attached to the outside of each skirt plate portion 6.
The skirt plate portion 6 is formed in a flat plate shape extending in the vertical direction and the conveyance direction of the conveyance belt 1 by a member such as a highly rigid iron plate. As shown in FIGS. 2 and 3, both sides of the conveyance belt 1 in the width direction are provided to hang down toward the conveyance surface 11, and are arranged with a gap S between the conveyance surface 11. Yes. This interval S is, for example, not less than 5 mm and not more than 50 mm.

  When the distance S is less than 5 mm, the conveyed product 9 is easily bitten and the conveying surface 11 of the conveying belt 1 is likely to be partially worn. On the other hand, when the interval S exceeds 50 mm, the conveyed product 9 is likely to be outside the skirt plate portion 6, that is, the gap between the lower end of the skirt plate portion 6 and the conveyance surface 11 of the conveyance belt 1 (interval S). Thus, the amount of the conveyed product that goes out of the skirt plate portion 6 increases, and the conveyed product 9 is likely to be caught between the elastic skirt portion 7 and the conveying belt 1, and the elastic skirt portion 7 and the conveying belt 1 may be worn. .

Although not shown, the skirt plate portion 6 is provided so that the height position in the vertical direction can be adjusted. By adjusting the height position of the skirt plate portion 6, the skirt plate portion 6 and the conveying belt 1 are adjusted. Can be adjusted.
An attachment portion 65 for attaching the elastic skirt portion 7 is provided outside each skirt plate portion 6.

  As shown in FIGS. 2 and 3, the elastic skirt portion 7 is attached to the outside of the skirt plate portion 6, and is provided in a state in which the elastic skirt portion 7 hangs down toward the conveyance surface 11 of the conveyance belt 1 and contacts the conveyance surface 11. The elastic skirt portion 7 is formed by a flexible member (for example, natural rubber) into a flat plate shape that extends in the vertical direction and the conveying direction of the conveying belt 1 in the same manner as the skirt plate portion 6. The plate thickness is a thin shape of 1 mm to 5 mm. The elastic skirt portion 7 comes into contact with the conveyance surface 11 so that the lower end position of the elastic skirt portion 7 is sandwiched between the conveyance belt 1 and the guide plate 45 that supports the conveyance belt 1 on both sides in the width direction of the conveyance belt 1. Provided. The lower end position of the elastic skirt portion 7 is arranged at a position higher than the lower end position of the skirt plate portion 6. In the belt conveyor 100 of this embodiment in which the distance S between the skirt plate 6 and the conveyor belt 1 is 5 mm or more and 50 mm or less, the height between the lower end position of the skirt plate portion 6 and the lower end position of the elastic skirt portion 7 is high. The length h is 5 mm to 50 mm, and the horizontal distance w from the outer surface of the skirt plate 6 to the elastic skirt 7 is 20 mm to 120 mm.

If the height h between the lower end position of the skirt plate portion 6 and the lower end position of the elastic skirt portion 7 is less than 5 mm, a sufficient horizontal distance w from the outer surface of the skirt plate portion 6 to the elastic skirt portion 7 can be secured. Disappear. On the other hand, if the height h exceeds 50 mm, it is necessary to secure a horizontal distance w from the outer surface of the skirt plate 6 to the elastic skirt 7 due to the inclination of the conveying surface 11, and therefore the elastic skirt 7 There is a possibility that it becomes shorter and it becomes impossible to follow the fluctuation in the vertical direction of the conveyance surface 11 of the conveyance belt 1.
If the horizontal distance w from the outer surface of the skirt plate 6 to the elastic skirt 7 is less than 20 mm, the elastic skirt 7 and the conveyor belt 1 are likely to be worn. On the other hand, when the horizontal distance w exceeds 120 mm, the elastic skirt 7 is shortened due to the inclination of the conveyance surface 11, and it may not be possible to follow the vertical fluctuation of the conveyance surface 11 of the conveyance belt 1.

  Although illustration is omitted, in order to prevent the conveyed product 9 from dropping or scattering from the tail side of the belt conveyor 100, the skirt structure 3 includes a skirt plate portion and an elastic member on the tail side. A skirt is provided.

In the belt conveyor 100 configured as described above, when the conveyed product 9 is supplied to the chute 2, the conveyed product 9 falls on the conveying surface 11 of the conveying belt 1 installed below the chute 2.
At this time, as shown in FIG. 3, most of the fallen conveyed items 9 are restricted from moving outward by the skirt plate portion 6, so that the central portion in the width direction of the conveyance belt 1 inside the skirt plate portion 6. The conveyed product 9 can be fastened on the conveying surface 11. In addition, since the skirt board part 6 is formed with the material with high rigidity, even if the conveyed product 9 collides with the skirt board part 6 by the impact of a fall, it will not be expanded outside, but the conveyed article 9 is made inside. And can be placed on the transport surface 11 at the center in the width direction.

  Further, even if a conveyed product 9 smaller than the interval S from the interval S provided between the lower end of the skirt plate portion 6 and the conveying surface 11 of the conveying belt 1 tries to move to the outside of the skirt plate portion 6, It can be blocked by the elastic skirt portion 7 attached to the outside of the plate portion 6, and can be prevented from dropping or scattering over the elastic skirt portion 7 to the outside of the conveying belt 1.

  Further, in this case, the lower end position of the elastic skirt portion 7 is disposed in contact with the inclined portions on both side portions in the width direction of the transport belt 1, and the elastic skirt portion 7 is located more than the lower end position of the skirt plate portion 6. The lower end position is arranged at a high position. For this reason, the conveyed product 9 that passes through the interval S between the skirt plate 6 and the conveyor belt 1 and enters the outside of the skirt plate 6 can move to the upper side of the inclined surface due to the inclination of both sides of the conveyor belt 1. Limited.

  Further, as described above, among the conveyed items 9 dropped from the chute 2, those having a relatively large shape that is larger than the interval S between the skirt plate portion 6 and the conveyance belt 1 come into contact with the skirt plate portion 6. Therefore, the elastic belt 7 does not directly contact the elastic skirt portion 7 because it is bounced back to the central portion of the conveying belt 1 in the width direction. Even if the conveyed product 9 reaches the elastic skirt portion 7, the conveyed product 9 that enters the outside of the skirt plate portion 6 in this way is light in weight and small in size. . For this reason, the elastic skirt portion 7 is not pushed and expanded by the conveyed product 9 (dust), and the conveyed product 9 is caught between the elastic skirt portion 7 and the conveying belt 1, and the elastic skirt portion 7 and the conveying belt 1. Can be prevented from being worn, so that the contact state with the conveying surface 11 can be maintained well. Therefore, the conveyed product 9 can be fastened inside the skirt structure 3.

Furthermore, since the lower end position of the skirt plate portion 6 is spaced apart from the conveyance surface 11 with a distance S from the conveyance belt 1, the skirt plate portion 6 and the conveyance belt 1 are moved as the conveyance belt 1 travels. It is possible to prevent sliding and wear, and damage due to these sliding can be avoided.
As described above, in the belt conveyor 100, when the transported article 9 including the powder having a small particle diameter to the coarse particle is transported, the wear of the transport belt 1 and the elastic skirt portion 7 can be prevented. Falling and scattering can be prevented, and the conveyed product 9 can be stably conveyed over a long period of time.

In addition, this invention is not limited to the thing of the structure of the said embodiment, In a detailed structure, a various change can be added in the range which does not deviate from the meaning of this invention.
For example, in the above embodiment, the interval S between the skirt plate 6 and the conveyor belt 1 is 5 mm to 20 mm, but the interval S may be changed as appropriate depending on the weight and size of the conveyed product 9.

DESCRIPTION OF SYMBOLS 1 Conveying belt 2 Chute 3 Skirt structure 4 Carrier roller 5 Pulley 6 Skirt board part 7 Elastic skirt part 9 Conveyed object 11 Conveying surface 41 Carrier roller (center roller)
45 Guide plate 65 Mounting portion 71 Thin plate portion 72 Thick portion 100 Belt conveyor

Claims (2)

It is a belt conveyor that places a conveyed product on a conveying surface of a conveying belt and conveys it,
At the bottom of the chute that guides and supplies the conveyed product on the conveying surface of the conveying belt,
A skirt structure that closes the space between the transport surfaces and prevents the transported object from falling;
The conveyor belt is provided with both sides inclined so that both sides in the width direction are higher than the center.
The skirt structure is
A pair of skirt plate portions provided on both sides of the conveyor belt in the width direction and provided to be suspended toward the conveyor surface and spaced from the conveyor surface;
A pair of elastic skirt portions that are attached to the outside of the skirt plate portion and hang down toward the transport surface and are provided in contact with both side portions of the transport surface;
The belt conveyor is arranged such that a lower end position of the elastic skirt portion is higher than a lower end position of the skirt plate portion. The distance between the lower end of the skirt plate portion and the conveying surface of the conveying belt is 5 mm or more and 50 mm or less,
The height between the lower end position of the skirt plate portion and the lower end position of the elastic skirt portion is 5 mm or more and 50 mm or less,
The belt conveyor according to claim 1, wherein a horizontal distance from an outer surface of the skirt plate portion to the elastic skirt portion is 20 mm or more and 120 mm or less.

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