JPH09100012A - Carrying device - Google Patents

Abstract

PROBLEM TO BE SOLVED: To carry a bulk cargo to an elevated spot from a low spot or to the low spot from the elevated spot by preventing an overflow of the cargo and dust. SOLUTION: In a conveyor A blocked up by rounding the total length an endless belt 3 extended between a head pulley and a tail pulley 2 in a pipe shape by a shape keeping roller 4, at least the forward moving side of a single conveyor is wound in a spiral shape, and is laid to an elevated spot from a low spot or to a low spot from an elevated spot, and bloking-up of a belt of a cargo receiving part and a cargo unloading part of the conveyor by the shape keeping roller is released, and a bulk cargo is carried without oveflowing the cargo and without generating dust.

Description

DETAILED DESCRIPTION OF THE INVENTION

[0001]

BACKGROUND OF THE INVENTION 1. Field of the Invention The present invention relates to a transfer device for loading and unloading an object to be transferred from a low place to a high place or from a high place to a low place.

[0002]

2. Description of the Related Art Conventionally, in order to increase the transportation amount per hour when loading or unloading powdered, granular, or lumpy bulk objects, a belt conveyor (rolled into a gutter or pipe) is used. It is used.

[0003]

When the object to be conveyed is raised to a high place, usually, a plurality of belt conveyors are transferred while being relayed (transferred) according to the terrain and other conditions (side by side). There was a problem that spillage and the like would occur and the environment would be polluted with the generation of dust.

Further, when a belt conveyor is used for loading, a smooth transportation of loose objects can be achieved unless the angle of the belt conveyor line connecting a low place (ground) and a high place (for example, the upper end of a tank) is gently inclined. Is not guaranteed. That is, when the angle of the line becomes steep, the loose object slides on the belt.

Therefore, the length of the crosspiece of the belt conveyor is significantly increased, the number of installation columns of the belt conveyor is significantly increased, and the facility cost is significantly increased due to the necessity of a vast open space.

Further, the length of the belt conveyor may be restricted by the relation of the open space. Then, since the height of the tank must be reduced, there is also a problem that the storage amount is significantly reduced.

A method of stopping sliding of loose pieces by providing crosspieces or fins on the belt surface of the belt conveyor at a predetermined distance in front and back, or closing the forward side of the belt conveyor by closing the belt conveyor belt Then, there is also a method of stopping the sliding by holding loose items.

However, as described above, the inclination angle of the belt conveyor is limited, and the tank cannot be increased in length.

Therefore, an object of the present invention is to load and unload conveyed objects by a belt conveyor from a low place to a high place or a high place to a low place with a large height difference, and to prevent spillage and dust generation as much as possible. It is something that is done.

[0010]

SUMMARY OF THE INVENTION In order to solve the above-mentioned problems, the present invention provides a pipe-shaped endless belt spanned between a head pulley and a taper pulley with shape-maintaining rollers arranged in a scattered manner. In a conveyor that is rolled up and closed, at least the forward side of this one conveyor is spirally wound to lay from a low place to a high place or from a high place to a predetermined position, and A configuration is adopted in which the belts of the load receiving portion and the unloading portion are unblocked by the shape retaining roller.

Further, the spirally wound portion of the conveyor may have a vertically long flat shape.

Further, the belt closing release by the shape-retaining roller of the unloading portion may be arranged on the backward side.

[0013]

DESCRIPTION OF THE PREFERRED EMBODIMENTS In a first embodiment of the present invention,
While the endless belt is spirally wound around at least the forward side of one conveyor which is closed by rolling it in a pipe shape with shape-maintaining rollers arranged in a scattered manner, it is lowered from a high place to a high place or a low place. The belt is laid down to a certain position and the belt of the load receiving portion and the unloading portion of the conveyor is released by unblocking the shape retaining roller.

When the object to be conveyed is fed onto the belt whose load receiving section is open, the belt is rolled into a pipe shape by the shape-retaining roller and wrapped, and the object is conveyed within the belt due to the gentle inclination due to the spiral winding. The objects are transported without slipping, and the objects to be transported are discharged by opening the belt at the unloading section.

Further, in the second embodiment of the present invention, the spirally wound portion of the conveyor has a vertically long flat shape.

Then, the winding of the conveyor can be bent with a small radius of curvature.

Further, in the third embodiment of the present invention,
Unlock the belt at the unloading section on the return side.

Then, the distance between the unloading section and the load receiving section is made extremely short, and inconveniences such as dust generated are avoided as much as possible.

[0019]

Embodiments of the present invention will be described below with reference to the accompanying drawings.

As shown in FIGS. 1 to 3, an endless belt 3 is stretched between a head pulley 1 and a tail pulley 2, and the entire length of the belt 3 is formed by shape-maintaining rollers 4 arranged in a scattered manner. A conveyor A that is rolled up into a pipe shape and closed is formed, and at least the forward side of this one conveyor A is spirally wound to a predetermined position from a low place to a high place or a high place to a low place (topography or Install according to the installation conditions of various equipment.

As the above-mentioned installation conditions, as shown in FIG. 1, it is installed in a tank (silo) 5 for storing (storing) powdery, granular, or lumpy loose objects, or in the inside of a thermal power plant, for example. In addition to spirally winding on the outside of the structure 6 having a coal storage tank directly above the boiler, it may be spirally wound on a constructed frame (not shown).

The inclination angle (gradient) of the spiral winding may be determined by calculation so that the loose material does not slide in the belt 3 which is rolled into a pipe shape.

Further, as shown in FIG. 5, the shape-maintaining roller 4 has a ring-shaped line in the frame body 7 so that both side edges of the belt 3 overlap (block) on the inside and the outside. It is rounded by a group of four shape-maintaining rollers arranged and supported on a square line.

At this time, the one shape-maintaining roller 4 presses the overlapping side edges of the belt 3 to maintain the closed state.

Further, as shown in the drawing, the vertical cross-sectional shape of the spirally wound portion of the conveyor A is made vertically long and flat.

As a result, the cross-sectional thickness is significantly smaller than the diameter of the pipe conveyor which is substantially circular, and the conveyor A can be bent with a radius of curvature smaller (smaller) than the horizontal bending radius.

As described above, in order to make the vertical cross-sectional shape of the spirally wound portion vertically long and flat, the twist of 90 ° from the horizontally long flat to the vertically long flat on the tail pulley 2 side of the conveyor A and the conveyor A. As shown in FIGS. 2, 3 and 4, the method for returning the horizontally elongated flat on the head pulley 1 side from the vertically elongated flat by 90 ° is, as shown in FIGS.
Are sequentially rotated in a desired direction in one direction, and are attached via the bracket 8 '.

Further, the belt 3 at the load receiving portion and the unloading portion of the conveyor A is rounded and closed by the shape-maintaining roller 4 to release the load receiving portion 8 and the unloading portion 9.

The above-mentioned unloading section 9 is provided on the backward side of the belt conveyor 3 to make the distance between the unloading section 9 and the receiving side of the hopper or the like extremely short so as to prevent scattering and dust generation when loose objects are dropped. Avoid pollution problems as much as possible.

The backward side of the conveyor 3 was laid by being wound spirally together with the forward side as shown in FIGS. 1 to 5, but it can be wound spirally as shown in FIGS. 7 and 8. It may be laid without it.

In the figure, 10 is a shoot.

[0032]

Since the carrying apparatus according to the present invention is configured as described above, it is possible to extremely smoothly carry loose objects from a low place to a high place or from a high place to a low place.

Further, since all the belts are closed up to the discharge point by using one closed conveyor, there is no spillage of dust or dust.

Further, since the unloading portion is provided on the backward side of the conveyor by releasing the belt blockage, the unloading portion can be brought closer to the load receiving side.

Therefore, it is possible to avoid the scattering of the load and the generation of dust as much as possible.

[Brief description of the drawings]

FIG. 1 is a front view showing an embodiment of the present invention.

FIG. 2 is a plan view

FIG. 3 is an enlarged side view of a main part.

FIG. 4 is a perspective view of a rocking portion of the closing belt.

FIG. 5 is an enlarged vertical sectional front view of a spirally wound portion.

FIG. 6 is an enlarged plan view of the cargo receiving portion.

FIG. 7 is a front view of another embodiment.

FIG. 8 is a plan view.

[Explanation of symbols]

 A Conveyor 1 Head pulley 2 Tail pulley 3 Belt 4 Shape-maintaining roller 5 Tank 6 Structure 7 Frame 8 Load receiving part 9 Unloading part

Claims (3)

[Claims] 1. A conveyor in which the entire length of an endless belt spanning between a head pulley and a taper pulley is rolled into a pipe shape and blocked by shape-maintaining rollers arranged in a scattered manner, at least one of the conveyors is provided. The forward side is spirally wound to lay from a low place to a high place or a predetermined position from a high place to a low place, and the belt of the load receiving portion and the unloading portion of the conveyor is blocked by the shape retaining roller. A carrier device characterized by being released. 2. The conveying apparatus according to claim 1, wherein the spirally wound portion of the conveyor has a vertically long flat cross section. 3. The conveying device according to claim 1, wherein the belt closing release by the shape-retaining roller of the unloading portion is located on the backward side.