JP2003279018A - Bridge breaker for refuse charging hopper - Google Patents

Abstract

<P>PROBLEM TO BE SOLVED: To remarkably improve the bridge breaking performance in a bride breaker applied to a refuse charging hopper of a refuse incinerator. <P>SOLUTION: This bridge breaker is composed of a funnel-shaped hopper 2, a press-down member 3 mounted on a throat part of the hopper 2 and having the fan-shape capable of being raised and settled to be projected into the hopper 2 at its upper side, a press-down member driving mechanism 4 mounted on the hopper 2 for raising and settling the press-down member 3, and a press-down member case mounted on the hopper in a sealed state for storing the press-down member 3, and the press-down member 3 has the shape of a block to directly press down the bridge and discharge in the hopper 2. <P>COPYRIGHT: (C)2004,JPO

Description

Detailed Description of the Invention

[0001]

BACKGROUND OF THE INVENTION 1. Field of the Invention The present invention relates to an improvement of a bridge removing device applied to, for example, a dust input hopper of a dust incinerator.

[0002]

2. Description of the Related Art In the waste injecting hopper of a refuse incinerator (hereinafter sometimes simply referred to as a hopper), a neck length type is used in order to improve the quality of the waste (low specific gravity, high calorie) and the sealing performance inside the furnace. It has been changed. For this reason, when a large amount of waste is thrown in, a bridge (crosslink) is generated in the hopper, which deteriorates the quantitative feedability of waste and adversely affects stable combustion. The bridge itself has been a problem even before even in the conventional type garbage dumping hopper, but in recent years, stable combustion is particularly strict as a countermeasure against dioxin, so this dioxin countermeasure is also more important. The need to make sure is emerging.

An example of this type of bridge removing device is shown in FIG. 2 (Japanese Patent Publication No. 52-3111).
No. 0) or the one shown in FIG. 3 (JP-A-2-25421)
No. 3 and Japanese Patent Publication No. 57-3544) are known.
The former bridge removing device 50 basically has a funnel-shaped hopper 51, a rod-shaped harpoon-shaped body 52 that can move back and forth toward the throat of the hopper 51, and a harpoon-shaped body 52. The harpoon-shaped body 5 is composed of a harpoon-shaped body driving machine.
The bridge is removed by inserting 2 into the garbage A. The latter bridge removing device 60 is basically a funnel-shaped hopper 61, and a plate-like push-up body 62 that is provided at the throat of the hopper 61 and that can be pulled up and down so that the lower side projects into the hopper 61. And a push-up body drive machine 63 provided on the hopper 61 to raise the push-up body 62. The bridge is removed by compressing the dust A by the push-up body 62 and then releasing this compression. It has become.

[0004]

However, the former one is only capable of partial removal, has only the effect of forming a hole in the dust layer, and has a narrow harpoon-like body, so It was sometimes bent under pressure. or,
Basically, the operation is performed while checking on site, so there were safety and hygiene problems in the work environment. On the other hand, the latter one is not effective against the bridge generated above the push-up body because the dust is pushed up by the push-up body and compressed. Therefore, the removal of the bridge was not sufficient, and there was a fear that the stable combustion would be adversely affected. Also, if you do not return the push-up body after compressing the dust by the push-up body,
The efficiency of removing the bridge was poor because the compressed dust was not discharged downward. In short, none of them had a good bridge removing ability.

The present invention has been made in view of the above problems and was devised to solve the problem. The problem to be solved by the present invention is that the bridge of a dust throwing hopper capable of dramatically improving the removal capacity of the bridge. To provide a removal device.

[0006]

DISCLOSURE OF THE INVENTION The bridge removing device of the present invention is basically a funnel-shaped hopper, and a fan-shaped member provided on the throat of the hopper so that the upper side can project and retract to project into the hopper. The present invention is characterized in that it is configured by a push-down body that presents a push-down body, a push-down body drive machine that is provided in the hopper and raises the push-down body, and a push-down body storage box that is provided in the hopper in a sealed state to store the push-down body.

When the pusher driving machine is operated, the pusher is turned up and down, and the dust bridging the throat of the hopper is pushed down and pressurized to be removed and the bridge is removed. It Since the bridge is pressed down depending on the pressing body, the bridge can be directly discharged downward without returning the pressing body to the original state. Since the push-down body has a fan shape and is in a so-called block shape, it is not deformed or damaged by the pressure of dust. For this reason, the removal ability of the bridge can be dramatically improved. The push-down body is fan-shaped, and the upper side of the push-down body is arranged so that it can project and retract so that the upper side projects into the hopper.Therefore, it does not hinder the flow of dust, and it is easy to seal with the hopper and dust between it and There is no need to bite or pull dust into the pusher storage box. In other words, since the upper surface of the pressing body has an arcuate shape, when it is turned down and protrudes into the hopper, dust from above flows smoothly downward and it is turned upside down and immersed in the hopper. When you do, you do not pull the garbage together into the pusher storage box. Since a push-down body storage box is provided,
There is no need to worry about dirt and odors leaking from the hopper to the outside. Since the bridge generated in the dust input hopper can be removed reliably and efficiently, stable combustion of dust can be continued and dioxins generated due to unstable combustion of dust can be suppressed.

[0008] A push-up body provided in a hopper located below the push-down body and having a plate shape that allows the lower side to project and retract so as to project into the hopper, and a push-up body drive machine provided in the hopper to raise and lower the push-up body. Is preferably provided. By doing this, it is possible to compress the dust cross-linked in the throat of the hopper by the pusher and pusher in a so-called sandwich shape, so that it is possible to double the bridge removal effect and ensure a wide range. You can remove the bridge.

[0009]

BEST MODE FOR CARRYING OUT THE INVENTION Embodiments of the present invention will be described below with reference to the drawings. FIG. 1 is a vertical cross-sectional side view showing an outline of the bridge removing device of the present invention.

The bridge removing device 1 comprises a hopper 2, a pushing body 3, a pushing body drive unit 4, a pushing body storage box 5,
A push-up body 6, a push-up body driving machine 7, and a push-up body storage box 8 constitute a main part of the push-up body 6, which is applied to a refuse incinerator.

The hopper 2 has a funnel shape, and in this example, a vertical front wall (left in FIG. 1 is front) 9, left and right side walls 10, and a predetermined angle with respect to the front wall 9. It is equipped with a rear wall 11 which is inclined (approximately 50 degrees), and at the upper part, the inlet 1
2 is formed so that the garbage A can be easily loaded by the crane.

The push-down body 3 is provided in the throat of the hopper 2 and has a fan shape whose upper side can be raised and lowered to project into the hopper 2. In this example, the push-down body 3 is provided on the front wall 9 side of the hopper 2. It is made of steel plate. The push-down body 3 has a fan-shaped cross-section with a predetermined angle (approximately 60 degrees), has a horizontal support shaft 13 in the left-right direction at the key point, and has a horizontal width in the left-right direction. The width of the front wall 9 is substantially the same. That is, the front wall 9 of the throat of the hopper 2 is provided with the opening 14 through which the pressing body 3 can pass, and the pressing body 3 has its main part at the bottom and the rear surface of the front wall of the hopper 2. It is arranged so that it is flush with 9. Pressed body 3
The arc-shaped upper surface and the support shaft 13 are concentric with each other, and the support shaft 13 is rotatably supported on the fixed side of the hopper 2, the pusher body storage box 5, etc., although not shown. ing.

The pusher drive unit 4 is provided in the hopper 2 to elevate the pusher 3, and in this example, the arm 15 provided on the support shaft 13 of the pusher 3 and the hydraulic pressure for rotating the arm 15 are provided. And a cylinder 16 such as an electric motor. Although not shown, the cylinder 16 is supported on the fixed side of the hopper 2 and the like.

The push-down body storage box 5 is provided in the hopper 2 in a sealed state to store the push-down body 3. In this example, the push-down body storage box 5 has a cubic shape with an open rear, and has a size capable of storing the push-down body 3. It is attached to the front wall 9 to close the opening 14 of the hopper 2.

The push-up body 6 is provided in the hopper 2 located below the push-down body 3 and has a plate-like shape so that the lower side can project and retract so as to project into the hopper 2. In this example, the hopper 2
It is provided on the front wall 9 side of and is made of a steel plate. The push-up body 6 is in the form of a plate, has a horizontal support shaft 17 in the left-right direction at the top, and has a horizontal width in the horizontal direction that is substantially the same as the horizontal width of the front wall 9 of the hopper 2. . That is, the front wall 9 of the throat of the hopper 2 is provided with an opening 18 through which the pusher 6 can pass, so that the pusher 6 has a rear surface flush with the front wall 9 of the hopper 2. It is distributed. Support shaft 17
Although not shown, is rotatably supported on the fixed side of the hopper 2, push-up body storage box 8 or the like.

The push-up body drive machine 7 is provided in the hopper 2 and raises the push-up body 6, and in this example, it is a hydraulic or electric cylinder for directly rotating the push-up body 6. Although not shown, the cylinder is supported on the fixed side of the hopper 2 and the like.

The push-up body storage box 8 is provided in the hopper 2 in a sealed state to store the push-up body 6. In this example, the push-up body storage box 8 has a cubic shape with an open rear, and has a size capable of storing the push-up body 6. It is attached to the front wall 9 to close the opening 18 of the hopper 2.

Next, the operation will be described based on such a configuration. When the cylinder 16 of the push-down body driving machine 4 is extended, the push-down body 3 is turned down around the support shaft 13 in the clockwise direction in FIG. 1 via the arm 15 to the pressing position indicated by the chain line. To be done. Then, the dust A bridged to the throat of the hopper 2 is pushed down and pressed by the pusher 3 and is discharged downward from the throat of the hopper 2 to remove the bridge. At this time, since the upper surface of the pressing body 3 has an arc shape, the dust A from above smoothly flows down. When the cylinder 16 of the pusher body driving machine 4 is shortened, the pusher body 3 is rotated around the support shaft 13 in the counterclockwise direction in FIG. Returned to. At this time, the rear surface, which is the pressing surface of the pressing body 3, is flush with the front wall 9 of the hopper 2, so that the dust A in the hopper 2 is not obstructed from flowing down.

Since the bridge is pressed down by the pressing body 3, the bridge can be directly discharged downward without returning the pressing body 3 to the original state. Since the push-down body 3 has a fan shape and a so-called block shape, it is not deformed or damaged by the pressure of the dust A. For this reason, the removal ability of the bridge can be dramatically improved.

When the cylinder, which is the push-up body driving machine 7, is extended, the push-up body 6 is rotated about the support shaft 17 in the counterclockwise direction in FIG. . Then, since the dust A cross-linked to the throat of the hopper 2 is pushed up and pressed by the push-up body 6 from below, the dust A is pressed against the rear wall 11 of the hopper 2 and compressed. When the cylinder, which is the push-up body drive machine 7, is shortened, the push-up body 6 is turned around the support shaft 17 in the clockwise direction of FIG. 1 and returned to the storage position shown by the solid line, so that it is compressed. The dust A drops downwards and is discharged, and the bridge is removed.
At this time, the rear surface, which is the pressing surface of the push-up body 6, is flush with the front wall 9 of the hopper 2, so that the dust A in the hopper 2 is not obstructed from flowing down. Since the push-up body 6 is rotated up and down with the upper support shaft 17 as a fulcrum, the dust A smoothly flows down along the slanted push-up body 6 even when the push-up body 6 is in the pressurization position, and the dust A is pushed up. There is no fear of entering the storage box 8.

Thus, when the push-down body 3 is turned down and the push-up body 6 is turned upright, the dust A bridged to the throat of the hopper 2 is sandwiched between them in a so-called sandwich form. Since the pressure is applied, the removal effect of the bridge is doubled, and the bridge is reliably removed over a wide range.

The push-down body 3 has a fan shape and the upper side is the hopper 2.
Since it is provided so that it can project and retract so as to protrude inside, it does not hinder the flow of dust A, and it is easy to seal with the hopper 2 and the dust A is caught between the hopper 2 and the pusher is stored. There is no possibility to pull the garbage A into the box 5. Since the push-down body storage box 5 and the push-up body storage box 8 are provided, there is no concern that dust and dirt from the hopper 2 will leak to the outside. Since the bridge generated in the hopper 2 can be removed reliably and efficiently, stable combustion of the dust A can be continued, and dioxins generated due to unstable combustion of the dust A can be suppressed.

In the above example, the bridge removing device 1 is
Although the present invention is applied to the dust input hopper 2, it is not limited to this and may be applied to other hoppers, for example. The pusher driver 4 is
In the above example, the support shaft 13 is rotated by including the arm 15 and the cylinder 16, but the present invention is not limited to this, and a cylinder that directly rotates the push-down body 3 such as the push-up body drive machine 7. May be Although the push-up body drive machine 7 is a cylinder that directly rotates the push-up body 6 in the previous example, the push-up body drive machine 7 is not limited to this, and the support shaft 17 includes an arm and a cylinder like the push-up body drive machine 4, for example. It is also possible to rotate.

[0024]

As described above, according to the present invention,
The following excellent effects can be achieved. (1) It is composed of a hopper, a pressing body, a pressing body drive machine, and a pressing body storage box, and in particular, a fan-shaped pressing body is provided in the hopper of the hopper that can be raised and lowered to project into the hopper.
Since the so-called pressing body is formed in a block shape so that the bridge in the hopper is directly pressed down and discharged, the bridge removing ability can be dramatically improved. As a result, it is possible to continue the stable combustion of waste and to suppress the generation of dioxins. (2) Since the pressing body storage box is provided, there is no fear that dusty sewage and odors from the hopper will leak to the outside. Therefore, it is extremely hygienic.

[Brief description of drawings]

FIG. 1 is a vertical sectional side view showing an outline of a bridge removing device of the present invention.

FIG. 2 is a vertical sectional side view showing an outline of a conventional bridge removing device.

FIG. 3 is a vertical sectional side view showing an outline of another conventional bridge removing device.

[Explanation of symbols]

1, 50, 60 ... Bridge removing device, 2, 51, 61 ...
Hopper, 3 ... Pressed body, 4 ... Pressed body drive machine, 5 ... Pressed body storage box, 6,62 ... Push up body, 7,63 ... Push up body drive machine, 8
... push-up body storage box, 9 ... front wall, 10 ... side wall, 11 ... rear wall,
12 ... Input port, 13, 17 ... Spindle, 14, 18 ... Opening,
15 ... Arm, 16 ... Cylinder, 18 ... Opening, 52 ... Harpoon, A ... Garbage.

   ─────────────────────────────────────────────────── ─── Continued front page    F-term (reference) 3E070 AA19 AB25 DA01 GA11 VA17                       WG01                 3K065 AA24 AB01 AC01 BA06 EA06                       EA22 EA41

Claims (2)

[Claims] 1. A funnel-shaped hopper, a fan-shaped pusher member provided on the throat of the hopper and capable of projecting and retracting so that its upper side projects into the hopper, and a pusher member provided on the hopper to raise and lower the pusher member. A bridge removing device for a dust input hopper, comprising: a body driving machine and a pusher body storage box that is provided in a sealed state in the hopper to store the pusher body. 2. A push-up body provided in a hopper located below the push-down body and having a plate-like shape that allows the lower side to project and retract to project into the hopper, and a push-up body drive provided in the hopper to raise and lower the push-up body. 2. A bridge removing device for a dust input hopper according to claim 1, further comprising a machine.