JPH0343197Y2 - - Google Patents

Description

[Detailed description of the invention] The present invention is used to remove the debris that occurs in the garbage input hopper in an incinerator for garbage such as municipal waste and industrial waste so that the garbage can enter the incinerator. The present invention relates to a hopper bridge removal device.

Conventionally, there have been problems such as flames from the incinerator rising up to the input port of the input hopper due to debris bridging that occurs in the input hopper. In some prior art techniques, opposing walls of a garbage input hopper are moved toward and away from each other, thereby crushing the garbage and causing it to fall into the incinerator. However, such prior art cannot be applied to existing equipment and requires a large scale, and depending on the type of garbage, bridges cannot be removed due to the mutual adhesion of the garbage.

The prior art that solves these problems is the
57-3544. In this prior art, the pushing rod that pushes the bridge-shaped garbage downward is configured to be retractable from the vicinity of the hopper input port.

However, in such prior art, the running rail is a cantilevered rail extending to the center of the input port of the hopper, and the operating range of the bridging removal mechanism is narrow. Further, the tip of the pushing rod is spiral-shaped, or alternatively, a disk is fixed to the tip of the pushing rod. When the tip of the pushing rod has a spiral shape, the pushing rod is configured to be driven to rotate around its axis. This poses a new problem of complicating the structure. There is also the problem that the spiral rod causes dirt to be lifted up, staining the surrounding area.

If the structure is such that a disk is fixed to the tip of the pushing rod as described above, when the debris forms a bridge, the pushing rod is pushed into the bridge, the bridge is destroyed, and after the bridge is broken, When the pushing rod is raised in the process, dust remains on the disc. Therefore, when the pushing rod is raised and retracted from the hopper input port, there is a problem in that the dirt adhering to the disk is lifted up and the floor near the hopper input port is soiled.

Another conventional technique is shown in Japanese Utility Model Application No. 51-31276. In this prior art, a plurality of bell-shaped baffle pieces of an appropriate size are provided near the center of the interior at the lower end of the hopper, with the small diameter portion facing upward. A device provided with a transparent window is disclosed. The plurality of baffle pieces are all bell-shaped baffles with a wider bottom, and there is a problem in that strong power is required for the pressing force, and the rigidity of the baffle pieces must be increased.

The purpose of this invention is to enable the hopper bridge removal device to be moved over a wide range of the hopper input port, to perform accurate hopper removal, and to prevent dust from adhering to the pushing rod and lifting up after removal. When adding input materials,
To provide a hopper bridge removing device in which a hopper bridge pushing rod is retracted from a hopper input port so as not to obstruct loading.

The present invention extends vertically above the input port of the hopper 2 and is provided near the center of the support base 22, and is directed downward so that its axis extends between the pair of traveling rails 21 spanned over the hopper 2. A hydraulic cylinder 9 is provided with a piston rod 31 that is driven to be extendable and retractable, a piston rod 31 is provided with a metal fitting 14 for removably attaching the pushing rod 10, and the piston rod 31 is connected to the piston rod 31 with the same axis line. ,
A fixing fitting 16 is provided on the upper part of the first cylindrical part 10a, and is interposed between the inverted conical part 10c near the lower end, the truncated conical part 10b, and the inverted conical part 10c and the truncated conical part 10b. second cylindrical part 1
0d, and a winch 15 for winding up a wire rope 17 hung on a fixing fitting 16, and a plurality of wheels 23.
It includes a support stand 22 which is configured to be movable in the horizontal direction along the running rail 21, and a running rail 21 which is stretched over the input hopper 2 in parallel in a pair, One side wall 2a is a vertical inner wall surface 2a1
The running rail 21 has the side wall 2a of the hopper 2.
The fixing metal fittings 16 are arranged to extend along the inner wall surface a1 near the inner wall surface a1, and the fixing metal fittings 16 protrude perpendicularly to the longitudinal direction of the running rail 21. The support base 22 further includes a hydraulic cylinder. A manual valve 24 for operating the telescopic drive of the hopper 2
The hopper bridge removing device is characterized in that it is provided near the side wall 2a of the hopper bridge.

Embodiments of the present invention will be described below based on the drawings.

FIG. 1 is a partial sectional view of a hopper bridge removal device 20 showing the basic structure of the present invention, and FIG. 2 is a side view of FIG. 1. The hopper bridge removal device 20 basically consists of a traveling rail 21
, a support stand 22 , a hydraulic cylinder 9 , and a pushing rod 10 . The traveling rail 21 is a second
As shown in the figure, they are hung in pairs on the input hopper 2 parallel to its vertical wall. Support stand 2
2 is provided with a plurality of wheels 23 and is configured to be movable in the horizontal direction (left-right direction in FIG. 1) on the running rail 21. The hydraulic cylinder 9 is
A support stand 2 extends in the vertical direction (vertical direction in Figure 1).
It is provided near the center of 2. At this time, the hydraulic cylinder 9 is provided above the input port so that its axis extends between the pair of running rails 21 spanned over. A piston rod 31 of the hydraulic cylinder 9 is extendable downward and a metal fitting 14 is provided at the lower end of the piston rod 31 to detachably attach a pushing rod 10. The pushing rod 10 includes a first cylindrical portion 10a, an inverted conical portion 10c near the lower end, and a truncated conical portion 10b.
The second portion interposed between these portions 10c and 10d
It consists of a cylindrical portion 10d. Pushing rod 10
is removably attached to the metal fitting 14 at one end on the cylindrical portion 10a side so that its axis coincides with the axis of the hydraulic cylinder 9. In this state, manual valve 24
By this operation, the hydraulic cylinder 9 is driven to expand and contract in its axial direction, that is, in the vertical direction (vertical direction in FIG. 1), and therefore the pushing rod 10 also moves in the vertical direction through the pair of traveling rails 21. perform a reciprocating motion. This makes it possible to remove bridging caused by dust generated in the input hopper 2. Furthermore, the support base 22 and thus the hydraulic cylinder 9 and the pushing rod 10 can be moved horizontally along the running rail 21, making it possible to carry out the removal of debris bridges in different positions. Then,
Dust bridges can be removed effectively.

When the hop plug removal device 20 is not used, remove the pushing rod 10 from the metal fitting 14 of the hydraulic cylinder 9, and use the winch 15 to wind up the wire rope 17 that is hung around the metal fitting 16 fixed to the upper part of the pushing rod 10. It is sufficient to move it to the end of the running rail 21 as shown by the imaginary line in FIG.

As clearly shown in FIG. 2, one side wall 2a of the hopper 2 has a vertical inner wall surface 2a1. The running rail 21 is arranged near the side wall 2a of the hopper 2 and extends along the inner wall surface 2a1.
The fixing fittings 16 protrude perpendicularly to the longitudinal direction of the traveling rail 21 (in the left-right direction in FIG. 2). The manual valve 24 is for operating the hydraulic cylinder 9 to extend and retract, and is located near the side wall 2a of the hopper 2 on the support base 22 (to the right in FIG. 2).
Therefore, it is possible for an operator to easily operate the manual valve 24 on one side wall 2a of the hopper 2.

In the embodiments described above, a hydraulic cylinder 9 was used as the drive cylinder, but it goes without saying that other hydraulic cylinders, such as hydraulic or pneumatic cylinders, may also be used.

As described above, according to the present invention, hopper bridges can be removed at different positions using the pushing rod of the hopper plug remover. Moreover, since the pressing operation can be performed over a wide range, the hopper bridge removal work can be reliably performed in a short time. Since the support table is configured to be angularly displaced around the vertical support axis when the input material is inputted, it can be expected that the input will not be hindered.

In particular, in the present invention, an inverted conical portion 10c, a second cylindrical portion 10d, and a truncated conical portion 10b are formed near the lower end of the pushing rod 10. The portion is a first cylindrical portion 10a. Therefore, the inverted conical portion 10c easily enters the debris that is causing the bridging, and the second conical portion 10c is
When the cylindrical portion 10d enters the garbage and the pushing rod 10 is pushed further, the lower end of the hollow truncated conical portion 10b pushes the garbage downward over a relatively large area. It becomes possible.
In this way, the bridge can be easily destroyed. When the truncated conical portion 10b enters the garbage and moves up the pushing rod after destroying the bridge, the garbage on the truncated conical portion 10b slides downward, so that the garbage does not fall into the pushing rod. It is not lifted upward as the rod 10 rises. Therefore, the vicinity of the hopper input port will not be contaminated by such dust.

Also, the second cylindrical portion 10d of the pushing rod 10
The interior is made hollow by the first cylindrical portion 10a and the first cylindrical portion 10a, thereby reducing the weight. Therefore, the hydraulic cylinder 9 that drives the pushing rod 10 can be downsized.

Further, according to the present invention, in the vicinity of one side wall 2a of the hopper 2 having the vertical inner wall surface 2a1, the running rail 21 is arranged to extend along the inner wall surface 2a1. A hydraulic cylinder 9 is provided on the support base 22 guided by the cylinder, and a push rod 10 attached to the piston rod 31 via a metal fitting 14 has a wire rope 1 attached thereto.
7 protrudes perpendicularly to the longitudinal direction of the traveling rail 21 (in the left-right direction in FIG. 2). The wire rope 17 can be hung on the hopper 2, which improves workability and reduces the risk of falling into the hopper 2, improving safety.

Further, according to the present invention, the support base 22 is further provided with a manual valve 24, and the manual valve 24 is further provided with a manual valve 24.
4 is provided close to the side wall 2a of the hopper 2, so the operator can operate the manual valve 24 on the side wall 2a, and the operability is good and the operator does not fall into the hopper 2. This also increases safety.

[Brief explanation of drawings]

FIG. 1 is a partial sectional view of a hopper bridge removal device 20 showing the basic structure of the present invention, and FIG. 2 is a side view of FIG. 1. 9... Hydraulic cylinder, 10... Pushing rod,
10a, 10d...Cylindrical part, 10b...Truncated conical part, 10c...Inverted conical part, 14...Metal fitting, 16...Fixing metal fitting, 15...Winch, 20
...Hot pub bridge removal device, 21...Traveling rail, 22...Support stand, 24...Manual valve, 31...
...Piston rod, 2a...side wall, 2a1...inner wall surface.

Claims (1)

[Scope of Claim for Utility Model Registration] The support stand 2 extends vertically above the input port of the hopper 2.
A hydraulic cylinder 9 is provided with a piston rod 31 that is provided near the center of 2 and is driven to extend and contract downward so that its axis extends between a pair of running rails 21 that are spanned. , a piston rod 31 provided with a metal fitting 14 for detachably attaching the pushing rod 10, and connected to the piston rod 31 with the same axis line,
A fixing fitting 16 is provided on the upper part of the first cylindrical part 10a, and is interposed between the inverted conical part 10c near the lower end, the truncated conical part 10b, and the inverted conical part 10c and the truncated conical part 10b. second cylindrical part 1
0d, and a winch 15 for winding up a wire rope 17 hung on a fixing fitting 16, and a plurality of wheels 23.
It includes a support stand 22 which is configured to be movable in the horizontal direction along the running rail 21, and a running rail 21 which is stretched over the input hopper 2 in parallel in a pair, One side wall 2a is a vertical inner wall surface 2a1
The running rail 21 has the side wall 2a of the hopper 2.
The fixing metal fittings 16 are arranged to extend along the inner wall surface a1 near the inner wall surface a1, and the fixing metal fittings 16 protrude perpendicularly to the longitudinal direction of the running rail 21. The support base 22 further includes a hydraulic cylinder. A manual valve 24 for operating the telescopic drive of the hopper 2
A hopper bridge removing device characterized in that it is provided near the side wall 2a of.