JP2002284358A - Leveling device for storage hopper - Google Patents

Abstract

PROBLEM TO BE SOLVED: To provide a leveling device for a storage hopper capable of gradually collapsing a heap of the loose bulk material with simple structure hard to be broken. SOLUTION: In this leveling device for a storage hopper for leveling the loose bulk material stored in a rectangular hopper 50, a presser plate 1 is provided inside of the hopper 50, and the upper end thereof is pivotally supported by a pin 2 at a part close to the inner surface of a side wall of the hopper 50, and the presser plate 1 is rocked around the pin 2 by a reciprocating means such as a cylinder 4. The heap of the loose bulk material heaped in the hopper 50 is pushed to a side by the rocking of the presser plate 1, and gradually collapses.

Description

DETAILED DESCRIPTION OF THE INVENTION

[0001]

BACKGROUND OF THE INVENTION 1. Field of the Invention The present invention relates to a storage hopper leveling device for leveling loose objects put into a hopper to increase the storage amount.

[0002]

2. Description of the Related Art Waste generated by the demolition of buildings is temporarily dumped to a yard of a treatment plant. Of these, large wastes are sorted by material such as iron, wood, concrete, etc. and stored in specific places, and the remaining small wastes are combustible, non-combustible,
It is sorted into metals and dropped as loose items from a chute conveyor or the like to each hopper.

FIG. 5 shows an example of such a hopper. The hopper 50 has a substantially rectangular cross section and is supported by a gantry 51, and has a pair of gates 52,
52 are provided. Each gate 52 is suspended by an arm 53, and the outer end of the gate 52 is connected to the tip of a piston rod of a cylinder 54.

[0004] In such a hopper 50, loose materials are thrown in from the upper conveyor 55, and when loose materials accumulate to a predetermined height, the piston rod of the cylinder 54 is contracted, the gates 52, 52 are opened, and the gates 52, 52 are opened. The loose objects are dropped on the loading platform 56 of the waiting dump truck, and then the cylinder 5
The piston rod of No. 4 is extended, the gates 52 and 52 are closed, and the feeding of loose items from the conveyor 55 is continued.

[0005] By the way, the loose objects dropped on the hopper 50 are piled up and piled up in the hopper 50.
In this state, the utilization efficiency of the internal volume of the hopper 50 becomes extremely poor. For this reason, in general, the use efficiency of the inner volume of the hopper is increased by breaking up the pile of loose objects by vibrating means or hammering means, or by scraping the loose objects with a chain conveyor with a scraper.

[0006]

However, vibration means and hammering means generate noise, and when the flowability of loose objects is poor, the pile of loose objects cannot be broken. When the object contains many sheet-like objects such as paper and plastic sheet, it is difficult to level the loose objects by these means.

In a chain conveyor with a scraper, a pile of loose materials can be forcibly flattened and broken down. However, a sheet-like loose material is caught in a chain, causing a malfunction of the conveyor or a bulky material in the scraper. May collide with each other and break the scraper, or the lump of bulk may be blown out of the hopper.

SUMMARY OF THE INVENTION It is an object of the present invention to provide a storage hopper leveling device capable of gently breaking a pile of loose objects with a simple mechanism that is not easily damaged.

[0009]

According to the present invention, there is provided a storage hopper leveling device for leveling loose objects stored in a rectangular hopper, wherein a pressing plate is provided inside the hopper. The upper end is supported by a pin near the inner surface of the side wall of the hopper, and the pressing plate is swung about the pin by the reciprocating means.

In such an apparatus, the pile of loose objects can be pushed to the side and gently broken by the swinging of the pressing plate, regardless of the flowability of the loose objects.

Further, when the rocking plates are arranged on both sides of the hopper and these rocking plates are alternately rocked, the pile of loose objects can be pushed to both sides and leveled.

[0012]

DETAILED DESCRIPTION OF THE PREFERRED EMBODIMENTS An embodiment of the present invention will be described below with reference to FIGS. Since the hopper equipped with this leveling device is the same as the conventional one shown in FIG. 5, the same reference numerals are used for the respective parts,
Description is omitted.

As shown in FIGS. 1 and 2, in this leveling device, a pressing plate 1 is provided inside a hopper 50.
This pressing plate 1 is pivotally supported by inserting a pin 2 at an upper end portion into a bracket 3 protruding from an inner surface of a side wall of the hopper 50, and an intermediate portion of the pressing plate 1 is bent along the side wall of the hopper 50. The lower end extends to the bottom of the hopper 50.

The cylinder 4 is attached to the outside of the side wall of the hopper 50. The pin 6 at the tip of the piston rod 5 engages with the long hole 8 of the connecting plate 7 attached to the back surface of the pressing plate 1. The swinging plate 1 swings when elongates and contracts.

The swing angle of the swing plate 1 is 30 ° to 40 °.
And the number of swings per minute is 5 to 10 times.

When such a leveling device is operated, FIG.
As shown by a chain line, even if loose objects accumulate in the hopper 50 in a mountain shape, the mountain of the loose objects is pushed to the side by the swing of the pressing plate 1 as shown by a solid line in FIG. Disintegrated gently.

For this reason, a large amount of loose materials can be stored in the hopper 50 by effectively utilizing the internal volume of the hopper 50.

In the case where the loose material is a combustible material, many sheets having poor fluidity such as paper and plastic sheets are contained, and wet paper is particularly poor in fluidity and may be stacked directly above. However, when this leveling device is used, such a pile of loose objects can be broken.

In an actual use example, when the bulk material is a combustible material containing a large amount of sheets, the storage amount of the hopper 50 can be increased by about 1.5 times. The storage capacity of 50 could be increased about 1.2 times.

Further, in this leveling device, even if a massive loose object falls and collides with the pressing plate 1, the pressing plate 1
, The pressing plate 1 is unlikely to be damaged.

Further, since the pin 2 is located near the side wall of the hopper 50, no lump hits the pin 2,
Lump does not hit the cylinder 4 which is a reciprocating means of the pressing plate 1.

It is desirable that the pressing plate 1 is always rocked when the loose object is a lump such as metal.
If the bulk material is a combustible material, it is relatively light even if it accumulates.

In this embodiment, the pressing plate 1 is provided only on one side of the hopper 50. However, as shown in FIG.
When the pressing plates 1 are arranged on both sides of the hopper 50 and these rocking plates 1 are rocked alternately, the pile of loose objects can be pushed to both sides and leveled.

Although the pressing plate 1 is shown as having a bent intermediate portion, its shape is arbitrary and may be a flat plate.

Further, although the cylinder is shown as a reciprocating means for swinging the pressing plate 1, the pressing plate 1 is converted into a reciprocating motion through a crank mechanism using a rotary drive source such as a motor. You may make it rock.

[0026]

As described above, when the leveling device for the storage hopper according to the present invention is used, the pile of loose objects can be pushed sideways and gently broken by the swinging of the pressing plate provided in the hopper. As a result, a large amount of loose materials can be stored in the hopper by effectively utilizing the internal volume of the hopper.

[Brief description of the drawings]

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

[Fig. 2] A longitudinal sectional view in which main parts of the above are enlarged.

FIG. 3A is a longitudinal sectional view for explaining the operation of the embodiment, and FIG.

4A is a longitudinal sectional view showing another embodiment, and FIG.

FIG. 5 is a longitudinal sectional view showing a hopper without a leveling device.

[Explanation of symbols]

 DESCRIPTION OF SYMBOLS 1 Pressing plate 2 Pin 3 Bracket 4 Cylinder 5 Piston rod 50 Hopper 51 Stand 52 Gate 53 Arm 54 Cylinder 55 Conveyor 56 Loading bed

Claims (2)

[Claims] In a leveling device for a storage hopper for leveling loose objects stored in a square hopper, a pressing plate is provided inside the hopper, and an upper end of the pressing plate is close to an inner surface of a side wall of the hopper by a pin. A flattening device for a storage hopper, wherein the pressing plate is pivoted about this pin by a reciprocating means. 2. The leveling device for a storage hopper according to claim 1, wherein the oscillating plates are arranged on both sides of the hopper, and these oscillating plates are alternately oscillated.