JP3105322U - Stone transporter - Google Patents

Abstract

PROBLEM TO BE SOLVED: To provide a stone transporting device capable of smoothly transporting a stone without clogging a chute.
SOLUTION: A stone transporting device 1 having belt conveyors 22a, 22b and 22c for transporting stones 4, and a chute 2 provided corresponding to a stone discharging side end Ya of the belt conveyor 22a. It is. The stone transport device 1 has a guide member 3 disposed inside the chute 2 to guide the flow of the stone 4. The cross-sectional shape of the guide member 3 in a direction perpendicular to the flow direction of the stone 4 is semicircular. Further, the cross-sectional shape of the guide member 3 along the flow direction of the stone 4 is an arc shape, for example, a part of a circle, a part of an ellipse, and other smoothly curved shapes.
[Selection diagram] Fig. 1

Description

  The present invention relates to a stone conveying device that conveys stone using a belt conveyor.

  2. Description of the Related Art A conveyor device using a belt conveyor is widely used for transporting mined materials in mines, transporting parts in various factories, transporting luggage in distribution bases, and the like. In this transport apparatus, a belt wrapped around a belt pulley circulates while being supported by rollers, and a transported object such as a mined object, a component, or a luggage is placed on the belt and transported.

  In mines, stones such as mined ore and limestone are generally transported using a belt conveyor. In such a case, usually, a plurality of belt conveyors having a predetermined length are connected in series, and a stone material as a conveyed material is transferred from the belt conveyor on the upstream side to the belt conveyor on the downstream side. To a predetermined place.

  A chute is provided between the two belt conveyors, that is, at the connecting portion between the belt conveyors, to prevent the stones from being scattered and to guide the stones to the belt conveyor at the connecting destination. . Conventionally, as shown in FIG. 3, the flow of the stone 104 is adjusted inside the chute 102 in order to transfer the stone 104 from the upstream belt conveyor 122a to the downstream belt conveyor 122b or 122c. Transfer device 111 provided with a flapper 113 for the slab is known. Further, there is also known a structure in which a damper 105 is installed below the flapper 113 and the position of the damper 105 is switched to switch the belt conveyor to which the stone-shaped object 104 transits between the belt conveyor 122b and the belt conveyor 122c. I have.

  In the chute 102 having the conventional structure, the stone-like material 104 that has protruded from the end of the upstream belt conveyor 122a collides with a flapper 113 provided inside the chute 102 and stalls. At this time, the stone 104 temporarily stays on the flapper 113 and then falls along the flapper 113. The flapper 113 regulates the flow so that the falling stones 104 gather at the center of the damper 105, thereby preventing the stones 104 from leaking from the ends of the damper 105. The stone 104 whose flow has been adjusted by the flapper 113 is then transferred to the downstream belt conveyor 122b or 122c in the direction selected by the damper 105 and transferred.

  However, in the above-mentioned conventional stone transport device 111 using the flapper 113, when the stone 104 collides with the flapper 113 and temporarily stays there, the stone 104 that has stayed in the flapper 113 clogs the chute 102. There was a risk. Moreover, the stone 104 that once collides with the flapper 113 stalls and falls freely, so that mud accumulates at the upper part of the flapper 113, that is, so-called occupancy tends to develop. There is also a risk that the chute 102 will be clogged by this stay.

  Further, when the stones 104 are significantly retained, there is a possibility that the stones 104 may overflow from the chute 102 or spill out to the back side of the flapper 113. In such a case, the stone-like material 104 does not normally transfer to the downstream belt conveyor 122b or 122c, which causes the belt to be shifted in the downstream belt conveyor 122b or 122c. Further, there is a possibility that the stone-like material 104 spilled from the flapper 113 flows in a direction different from the direction selected by the damper 105.

  The above-mentioned problems are caused when the speed of the belt is high, when the interval between the head pulley 124 disposed at the end of the belt conveyor 122a and the flapper 113 is small, when the stone 104 contains a large amount of moisture. And when the inclination angle of the flapper 113 is small.

  The present invention has been made in view of the above problems, and an object of the present invention is to provide a stone transporting device capable of smoothly transporting a stone without clogging a chute.

  In order to achieve the above object, a stone transporting device according to the present invention includes a belt conveyor for transporting stones, and a chute provided corresponding to an end of the belt conveyor on the stone discharging side. The chute has a guide member having a semicircular cross section perpendicular to the flow direction of the stone, and a shape along the flow direction of the stone being arc-shaped. Features.

  According to the stone transporting device having the above configuration, the shape of the guide member provided in the chute corresponding to the end of the belt conveyor on the stone discharging side has a cross section perpendicular to the flow direction of the stone. The shape was semicircular, and the shape along the flow direction of the stone was arcuate. Here, the arc shape refers to a part of a circle, a part of an ellipse, a part of an ellipse, and other smoothly curved shapes.

  By doing so, the stone-like material that has protruded from the end of the belt conveyor smoothly flows inside the guide member without colliding with the guide member wall surface with an excessive impact force. Therefore, it is possible to prevent the stone-like material from staying inside the guide member, that is, inside the chute. In addition, since the stones flow without stalling, it is possible to prevent the stake from developing inside the chute. Therefore, the chute does not close and the stone does not overflow from the chute, so that the stone can be transported smoothly.

  In the stone transport device of the present invention, it is preferable that the guide member in the chute is formed by joining a plurality of semi-cylindrical members in the flow direction of the stone. If a single member is used to form the chute guide member in an arc along the flow direction of the stone, a special machine is required. For this reason, the chute must be manufactured in a place having a special machine other than the site where the stone transporting apparatus is operated, which is troublesome. Also, it is difficult to manufacture chutes of various shapes.

  On the other hand, in the present invention, a plurality of flat plates can be processed into a semi-cylindrical member by, for example, a bending roller. Then, by joining the plurality of semi-cylindrical members, an arc-shaped guiding member can be formed along the flow direction of the stone. In this case, the chute can be easily formed in accordance with a required shape at the site where the stone transporting apparatus is operated. Also, chutes of various shapes can be manufactured according to the connecting portions of the plurality of belt conveyors. The joining of the semi-cylindrical members adjacent to each other is performed by, for example, welding.

  In the stone conveying device of the present invention, the shape of the guiding member constituting the chute along the flow direction of the stone at the stone inlet side is along the trajectory of the stone protruding from the belt conveyor. Desirably, it is shaped. In this way, at the entrance side of the guide member, the stone-like object does not collide with the wall surface of the guide member with an excessive impact force, and it is ensured that the stone-like object stays inside the guide member, that is, inside the chute. Therefore, the stone can be smoothly transported.

  The stone transporting device of the present invention may further include a flow path switching member for switching a flow direction of the stone, on the stone discharging side of the guiding member inside the chute. In this case, it is desirable that the opening area of the guide member on the stone discharge side is smaller than the opening area on the stone inflow side. With this configuration, the width of the flow of the stone can be reduced on the stone discharge side of the guide member, so that the stone can be collected at the center of the flow path switching member. Thus, the stone-like material does not spread on the flow path switching member, so that the stone-like substance can be prevented from leaking from the end of the flow path switching member. As a result, the stone can be reliably transported in the direction selected by the flow path switching member.

  As described above, according to the stone transport device according to the present invention, the chute is configured using the guide member, and the shape of the guide member is related to the cross-sectional shape perpendicular to the flow direction of the stone. The shape was semicircular, while the shape along the flow direction of the stone was arc-shaped. Thereby, it is possible to prevent the stone-like material from stalling in the chute due to stall. Further, it is possible to prevent the chute from being blocked or the stone from overflowing from the chute. Further, the stone can be smoothly transported.

  Hereinafter, an embodiment of the present invention will be described by taking, as an example, a case where the stone transporting device according to the present invention is used for transporting a mined object in a mine. Note that the present invention is not limited to this embodiment. FIG. 1 shows an embodiment of the stone transport device 1 according to the present invention, and FIG. 2 shows a plan structure of the stone transport device 1 as viewed from the direction of arrow A in FIG.

  This stone-like material conveying device 1 has a plurality of belt conveyors each having a predetermined length, and the stone-like material 4 as a conveyed material is loaded from a belt conveyor on an upstream side to a belt conveyor on a downstream side. It is used when being conveyed to a predetermined place. For example, in a mine, it is used when stones 4 such as ore and limestone mined at a mining site are transported to a vehicle for ore transportation. FIG. 1 shows a portion of the stone transporting apparatus 1 from a belt conveyor located on the upstream side to a belt conveyor located on the downstream side, that is, a stone 4 located on the downstream side from the belt conveyor located on the upstream side. Mainly shows the part that connects to the belt conveyor located at.

  The stone conveying apparatus 1 shown in FIG. 1 includes a first belt conveyor 22a as an upstream belt conveyor, a chute 2, a second belt conveyor 22b as a downstream belt conveyor, and also as a downstream belt conveyor. And a third belt conveyor 22c. The second belt conveyor 22b extends in the left-right direction of FIG. 1, that is, in the same direction as the first belt conveyor 22a as shown in FIG. The third belt conveyor 22c extends in a direction perpendicular to the paper surface of FIG. 1, that is, in a direction substantially perpendicular to the first belt conveyor 22a as shown in FIG.

  As shown in FIG. 1, the stone supply end Xb for the second belt conveyor 22b and the stone supply end Xc for the third belt conveyor 22c are gathered at substantially the same location, and their ends Xb , Xc is disposed above the chute 2. In addition, the second belt conveyor 22b and the third belt conveyor 22c may be arranged such that both extend in a direction different from that of the first belt conveyor 22a.

  The chute 2 has an inlet 14 for taking in the stone 4, an outlet 15 b for discharging the stone 4, and another outlet 15 c for discharging the stone 4. The two outlets 15b and 15c are provided so as to be adjacent to each other. The first belt conveyor 22a has a stone-like material supply side end Xa on which the stone-like material 4 is placed, and a stone-like material discharge-side end Ya from which the stone-like material 4 is discharged. The stone-discharge-side end Ya enters the inside of the chute 2 from the entrance 14 of the chute 2. The stone supply end portion Xb of the second belt conveyor 22b is disposed below the outlet 15b of the chute 2. The stone supply end Xc of the third belt conveyor 22c is disposed below the outlet 15c of the chute 2.

  In the present embodiment, the first belt conveyor 22a, the second belt conveyor 22b, and the third belt conveyor 22c have the same structure. In these belt conveyors, a head pulley 24 is provided at a stone discharge side end Ya, and a tail pulley 25 is provided at a stone supply side end Xa, Xb, Xc. As the head pulley 24 and the tail pulley 25, a pulley for friction transmission or a toothed pulley can be used.

  A belt 23 is stretched between the head pulley 24 and the tail pulley 25. Further, a plurality of rollers 26 are disposed between the head pulley 24 and the tail pulley 25, and the belt 23 is supported by the plurality of rollers 26 so that the belt 23 does not slack. The belt 23 circulates between the head pulley 24 and the tail pulley 25 when the head pulley 24 rotates, for example, in the direction of arrow B in FIG. If the stone 4 is placed on the upper traveling portion of the orbiting belt 23, the stone 4 can be transported from the stone supply side end Xa to the stone discharge side end Ya.

  In FIG. 1, the belt 23 of the first belt conveyor 22a and the belt 23 of the second belt conveyor 22b are shown in a simplified manner with the surface on which the stone 4 is placed being a flat surface. However, when the stones 4 such as ores are conveyed as in the present embodiment, these belts 23 have the same cross-sectional shape as the belt 23 of the third belt conveyor 22c. That is, the roller 26a is disposed at the center in the width direction of the belt 23, and the rollers 26b are disposed at both ends of the belt 23. Further, the rollers 26b are arranged at an angle to the rollers 26a so that both sides of the belt 23 are lifted. By doing so, it is possible to prevent the stone 4 from spilling from both ends of the belt 23 when the stone 4 is being conveyed by the belt conveyor.

  The chute 2 shown in FIGS. 1 and 2 includes a guiding member 3 for guiding the stones 4 jumping out of the first belt conveyor 22a, a damper 5 for changing the flow direction of the stones 4, and a casing 18 surrounding them. Having. The chute outlets 15b and 15c are formed at the lower end of the casing 18.

  As shown in FIG. 1, the guide member 3 is disposed so as to surround the stone discharge side end Ya of the first belt conveyor 22a, that is, to cover the head pulley 24 of the first belt conveyor 22a. As shown in FIG. 2, the shape of the guide member 3 has a semicircular cross section perpendicular to the direction C in which the stone 4 flows. Moreover, as shown in FIG. 1, the shape along the direction C in which the stone 4 flows is an arc. Here, the arc shape refers to, for example, a part of a circle, a part of an ellipse, a part of an ellipse, and other smoothly curved shapes.

  The opening area of the stone discharge port 17 formed at the lower end of the guide member 3 is formed smaller than the opening area of the chute inlet 14 which is a stone distribution inlet. That is, the guide member 3 is formed in a semi-cylindrical shape narrowed from the chute inlet 14 at the upper part of the guide member 3 toward the stone discharge port 17 at the lower part of the guide member 3, as shown by a broken line in FIG.

  As shown in FIG. 1, inside the chute 2, a damper 5 as a flow path switching member is provided below the stone discharge port 17 of the guide member 3. The damper 5 is disposed between the chute outlets 15b and 15c for discharging the stones 4 in the chute 2. Further, the damper 5 can be rotated around the boundary between the chute outlets 15b and 15c in a counterclockwise or counterclockwise direction in FIG. By this rotation, the damper 5 can be set at a different inclination angle with respect to the guide member 3.

  When the damper 5 is tilted to the left in FIG. 1, the stone 4 discharged from the stone discharge port 17 of the guide member 3 shoots from the chute outlet 15 c formed at the lower end of the casing 18. 2 to the outside. On the other hand, when the damper 5 is tilted rightward in FIG. 1, the stone 4 is discharged from the chute outlet 15 b to the outside of the chute 2. In this way, by switching the direction in which the damper 5 tilts to the left or right, the direction in which the stone 4 discharged from the stone discharge port 17 of the guide member 3 flows can be switched inside the chute 2.

  Hereinafter, the operation of the stone transporting device of the present embodiment will be described. In FIG. 1, the stone 4 is placed on the upper running portion of the belt 23 at the stone supply side end Xa of the first belt conveyor 22a. The stone 4 placed on the belt 23 in this manner is moved from the stone supply side end Xa to the stone discharge side Ya by the belt 23 orbiting between the head pulley 24 and the tail pulley 25. Conveyed. At this time, the belt 23 orbits between the head pulley 24 and the tail pulley 25 while being supported by the plurality of rollers 26 so as not to slack. The stone 4 transported to the stone discharge side end Ya of the first belt conveyor 22a is discharged from the first belt conveyor 22a along the locus of arrow C.

  The discharged stone 4 collides with the inner wall surface of the guide member 3 constituting the chute 2. The stone 4 flows without stagnating along the wall surface of the guide member 3 formed in an arc shape along the direction in which the stone 4 flows. The stone 4 flowing along the wall surface of the guide member 3 is discharged from the stone discharge port 17 of the guide member 3 and carried on the damper 5.

  Here, when the damper 5 is falling on the left side of FIG. 1, that is, on the exit 15 b side of the chute 2, the stone 4 falling on the damper 5 is guided along the upper surface of the damper 5 and is located at the lower end of the casing 18. It flows out of the chute 2 from the formed chute outlet 15c. Thereafter, the stone 4 is transported onto the stone supply side end Xc of the third belt conveyor 22c, and is transported in the moving direction of the belt 23, that is, in the direction of arrow G in FIG. On the other hand, when the damper 5 is falling to the exit 15c side of the chute 2, the stone 4 flows out of the chute 2 from the chute exit 15b. Then, the stone 4 is transported onto the stone supply side end Xb of the second belt conveyor 22b, and is transported in the direction of arrow F in FIG. As described above, the stone 4 can be transported from one place to another different place.

  Meanwhile, as shown in FIGS. 3 and 4, a flapper 113 for adjusting the flow of the stone 104 is provided inside the conventional chute 102. The stone 104 jumping out of the first belt conveyor 122a flows along the arrow C, and collides with the flapper 113 inside the chute 102. The stone 104 that has collided with the flapper 113 loses its speed, temporarily stays on the flapper 113, and then falls along the surface of the flapper 113.

  In this chute 102, the stone-like material 104 staying in the flapper 113 sometimes clogs the chute 102. This phenomenon occurs remarkably when the distance between the head pulley 124 and the flapper 113 is small. When the speed at which the belt 123 circulates is high, the stone 104 may be pushed up to the upper part of the flapper 113. there were. Furthermore, when the inclination angle of the flapper 113 is small and nearly horizontal, the stagnation of the stones 104 becomes remarkable, and the stones 104 may overflow from the chute 102. In addition, the stone-like material 104 spills out of the flapper 113 and does not normally move onto the second belt conveyor 122b and the third belt conveyor 122c on the downstream side, causing the belt 123 to be shifted.

  Further, in the chute 102 using the flapper 113, when the stone-shaped material 104 collides with the flapper 113 and stalls, so-called seizing, that is, accumulation of mud at the upper part of the flapper 113, is likely to occur. In particular, when the stone 104 contains a large amount of moisture, seizure easily occurs, and this seizure also causes the chute 102 to be clogged.

  In the present embodiment, as shown in FIG. 1, the guide member 3 is provided instead of the flapper 113. As shown in FIG. 2, the guide member 3 has a semicircular cross section perpendicular to the direction C in which the stone 4 flows. Moreover, as shown in FIG. 1, the shape along the direction C in which the stone 4 flows is an arc.

  With such a shape, when the stone 4 discharged from the stone discharge side end Ya of the first belt conveyor 22a passes through the inside of the chute 2, the stone 4 is It flows smoothly along the wall surface of the guide member 3. Therefore, the impact force colliding with the wall surface of the guide member 3 can be reduced. As a result, it is possible to prevent the stone 4 from staying inside the chute 2. Further, since the stones 4 can flow without decreasing the speed at the time of discharge, it is possible to prevent the mud from accumulating inside the chute 2 from developing. Therefore, the chute 2 does not close and the stone 4 does not overflow from the chute 2, so that the stone 4 can be transported smoothly.

  Next, in addition to making the shape of the guide member 3 along the direction in which the stone 4 flows in the arc shape as described above, in the present embodiment, the entrance portion D of the guide member 3 (see FIG. 1). Can be shaped along the trajectory of the stone 4 discharged from the first belt conveyor 22a. That is, the arrow C shown in FIG. 1 is the locus of the stone 4, and the shape of the guide member 3 along the direction in which the stone 4 flows can be made to follow the locus.

  As shown in FIG. 1, if the shape of the entrance portion D of the guide member 3 is formed along the trajectory C, the stone 4 can flow along the trajectory close to its own flight trajectory at the entrance portion D. . At this time, the stone 4 collides with the inner wall surface of the guide member 3, but flows along the wall surface of the guide member 3, so that the impact force of the collision is small. Therefore, it is possible to more reliably prevent the stone 4 from staying in the guide member 3, and thus it is possible to smoothly transport the stone 4.

  Next, as shown in FIG. 2, the cross-sectional shape of the guide member 3 in a direction perpendicular to the direction C in which the stone 4 flows is a semicircular shape. Further, as shown in FIG. 1, the cross-sectional shape of the guide member 3 along the direction C in which the stone 4 flows is arc-shaped. That is, the guide member 3 has a shape defined by the curved surface. If the guiding member 3 having such a shape is formed into a smooth arc shape using one member, the flow of the stone-like material 4 becomes more smooth. However, when the guide member 3 is formed using one member, a special machine is required. Therefore, such a guide member 3 has to be manufactured at a place other than the site where the stone object transporting device 1 is operated, and at a place having a special machine tool, and therefore, the manufacture is troublesome.

  In the present embodiment, when the size or speed of the belt conveyor to be used is changed, the size of the chute 2 may need to be changed accordingly. In such a case, it is necessary to manufacture chutes of various shapes according to the situation. However, when the guiding member 3 is formed using one member, it is difficult to cope with such a situation.

  In the present embodiment, the guide member 3 can be formed by joining a plurality of semi-cylindrical members 6 in the flow direction of the stone-like material 4 as shown in FIG. The semi-cylindrical member 6 can be manufactured, for example, by processing a flat plate into a semi-cylindrical shape using a bending roller or the like. The bending roller is a machine tool used for bending a sheet material in, for example, a can-making operation, and is widely used in factories that perform metal processing. Therefore, the processing of the semi-cylindrical member 6 can be easily performed.

  By linking the plurality of semi-cylindrical members 6 manufactured as described above by, for example, welding, the guide member 3 having an arc shape along the direction in which the stone-like material 4 flows can be easily formed. In addition, by using the semi-cylindrical members 6 having various shapes and sizes in combination, the chutes 2 having various shapes can be easily manufactured according to the size of the belt conveyor and the trajectory of the flow of the stone-like material 4.

  Next, in the conventional chute 102 using the flapper 113 as shown in FIGS. 3 and 4, the stone-like material 104 collides with the flapper 113, stays there, and then falls to the damper 105. In this case, depending on the situation where the stone 104 stays in the flapper 113, the stone 104 sometimes spreads over the entire width of the flapper 113. When the stagnated stone 104 falls into the damper 105 in this manner, the stagnation 104 may spread on the damper 105 and leak from the end of the damper 105. As a result, the stone 104 may flow in a direction different from the direction selected by the damper 105.

  In the present embodiment, as shown in FIG. 2, the opening area of the stone discharge port 17 of the guide member 3 is formed smaller than the opening area of the chute inlet 14. In this way, the width of the flow of the stone 4 at the stone discharge port 17 of the guide member 3 can be narrowed. Thus, the stone 4 does not spread on the damper 5 of FIG. 1, so that the stone 4 can be prevented from leaking from the end of the damper 5. Therefore, the stone 4 can be reliably transported in the direction selected by the damper 5.

(Other embodiments)
As described above, the present invention has been described with reference to the preferred embodiments. However, the present invention is not limited to the embodiments, and can be variously modified within the scope of the invention described in the claims. For example, in the above embodiment, as shown in FIG. 1, the guide member 3 is provided so as to cover the stone discharge side end Ya of the first belt conveyor 22a. However, the guide members 3 may be provided at relatively wide intervals so as not to cover the stone discharge side end Ya of the first belt conveyor 22a.

  The stone transport device according to the present invention is suitably used when a stone such as ore is transported over a long distance using a plurality of belt conveyors.

FIG. 3 is a cross-sectional view illustrating the embodiment of the stone transport device according to the present invention. FIG. 2 is a plan view of the stone transporting apparatus as viewed from the direction of arrow A in FIG. 1. It is sectional drawing which shows an example of the conventional stone conveyance device. FIG. 4 is a plan view of the conventional stone-conveying device when viewed from the direction of arrow E in FIG. 3.

Explanation of reference numerals

1. 1. Stone transporting device; Shoot, 3 Guide member, 4. Stones,
5. 5. damper (flow path switching member); Semi-cylindrical member, 113. Flapper,
14． Chute entrance, 15b, 15c. 17. chute exit, Stone outlet,
18. Casing, 22a. First belt conveyor, 22b. Second belt conveyor, 22c. 23. third belt conveyor, Belt, 24. Head pulley,
25. Tail pulley, 26, 26a, 26b. Laura, D. Guide member entrance,
Xa, Xb, Xc. Stone supply side end, Ya. Stone material discharge side end

Claims (4)

A belt conveyor for transporting stones,
A chute provided corresponding to the end of the belt conveyor on the stone discharge side,
The chute has a guide member having a semicircular cross section perpendicular to the flow direction of the stone and a guide member having an arc shape along the flow direction of the stone. Object transport device.   The stone transporting device according to claim 1, wherein the guide member is formed by joining a plurality of semi-cylindrical members in a flow direction of the stone.   3. The stone transporting device according to claim 1, wherein a shape of the stone at an entrance side of the guide member along a flow direction of the stone is along a locus of the stone flying out of the belt conveyor. 4. A stone conveying device, characterized in that: The flow path switching member according to any one of claims 1 to 3, wherein the flow path switching member is disposed on a stone discharge side of the guide member and switches a flow direction of the stone. Further having
The stone conveying device, wherein the opening area of the guiding member on the stone discharging side is smaller than the opening area of the stone discharging side.

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