JP2681256B2 - Suction and carry-out device for sludge - Google Patents

Description

DETAILED DESCRIPTION OF THE INVENTION

[0001]

This invention relates to sludge, sand, ash, shells, various powders or solids, and waste liquid (hereinafter referred to as sludge) by using a work vehicle in a closed place such as a tunnel.
The present invention relates to a device for sucking and carrying out.

[0002]

2. Description of the Related Art Since shells adhere to the cooling seawater tunnel of a thermal power plant, cleaning is required every few years. Cleaning
The shell attached to the inner surface of the tunnel is scraped off, the dropped shell is sucked up by a suction mouse connected to a vacuum device, and discharged outside the tunnel. In this case, since the exhaust gas can enter the tunnel, the work vehicle cannot be introduced into the tunnel. Therefore, conventionally, the movement of the suction mouse has been performed manually by a worker. However, since the suction mouse and the hose connected to it are heavy, such a working method is not efficient.

[0003]

SUMMARY OF THE INVENTION It is an object of the present invention to perform work of sucking shells, sludge and the like in a closed place such as a tunnel using a work vehicle.

[0004]

[MEANS FOR SOLVING THE PROBLEMS] A suction mouse is attached to a movable arm of a work vehicle to be introduced into an enclosed place. A suction tube connected to this suction mouse is led to a vacuum device placed outside the enclosed area. Then, an exhaust gas suction pipe for guiding the engine exhaust gas of the work vehicle into the suction mouth is attached. Suction mouse
A bent pipe can be connected to a side portion of the cylinder body via a swivel joint.

[0005]

The engine exhaust gas of the work vehicle is sucked into the vacuum device together with the air (and sludge, etc.) sucked from the suction mouth, and is discharged outside the tunnel.

[0006]

EXAMPLE An example of an apparatus for discharging shells scraped from a cooling seawater tunnel of a thermal power plant to the outside of the tunnel will be described with reference to the drawings. The work vehicle 1 is a hydraulic excavator (driven by a diesel engine) without a bucket.
That is, the turning part 3 is mounted on the running part 2 having an endless track, and the engine 5 and the driver's seat 6 are mounted on the turning part. A lower end of a boom 7 is pivotally supported on the swivel unit 3, and when the hydraulic cylinder 9 is expanded or contracted, the boom 7 is tilted back and forth. An arm 10 is pivotally supported at the tip of the boom 7, and when the hydraulic cylinder 11 is expanded and contracted, the arm 10 is tilted back and forth.

A suction mouth 12 is attached along the arm 10. Suction mouse 12 body 12
Reference character a is a steel pipe having a diameter of about 150 mm, and the lower end thereof serves as a suction port. A T-piece 13 is welded to the upper part of the cylinder body 12a, and a steel pipe bending pipe 16 is connected to the tip of the T-piece 13 via a swivel joint 15.

A flexible suction pipe (rubber hose) 17 is connected to the end of the bent pipe 16. The suction pipe 17 of this rubber hose is connected to a vinyl chloride pipe 19 installed inside the tunnel, and the tip thereof is connected to a vacuum device 21 of a suction wheel 20 parked outside the tunnel.

An exhaust gas suction pipe 23 is connected to the engine exhaust pipe 22 of the work vehicle 1, and the suction mouth 12 is connected to the end thereof.
It is connected to a steel pipe injection pipe 25 connected by welding to the lower side of the. As the exhaust gas suction pipe 23, a heat-resistant stainless flexible pipe is used. A vacuum pressure gauge 26 is attached in the middle of the exhaust gas suction pipe.

The vacuum device 21 includes a receiver tank 27 for separating shells and a blower 29 for sucking air.
Consists of

After the work of scraping off the shells attached to the tunnel is completed, the work vehicle 1 is introduced into the tunnel. The work vehicle moves the suction mouse 12,
The shells falling in the tunnel are sucked together with air from the suction port at the bottom of the suction mouse. Since the suction mouth has the swivel joint 15, the bent pipe 16 is freely rotated as shown by a chain line in FIG. 1, and an unreasonable force is not applied to the rubber hose.

The exhaust gas discharged from the engine 5 of the work vehicle is guided to the suction mouth 12 through the suction pipe 23 and the injection pipe 25, and is sent to the vacuum device 21 together with the sucked air and the shell. Therefore, no exhaust gas is emitted in the tunnel. The sucked shells are collected in the receiver tank 27, and the air containing the exhaust gas is discharged from the top of the receiver tank to the outside by the blower 29.

[0013]

As described above, in the present invention, the exhaust gas of the work vehicle is sucked into the vacuum device together with the air (and the sludge etc.) sucked from the suction mouth, and is discharged outside the tunnel. Therefore, since the exhaust gas is not in the tunnel, the air in the tunnel is not polluted and the worker can safely work. Moreover, since the suction mouse is attached to the movable arm of the work vehicle, the suction mouse can be freely moved, and work efficiency is dramatically improved.

If a bent pipe is connected to the side portion of the suction mouth via a swivel joint and the suction pipe is connected to this bent pipe, an unreasonable force is not applied to the suction pipe during work.

[Brief description of the drawings]

FIG. 1 is a side view of a suction unloading device.

FIG. 2 is a front view of a suction mouse.

FIG. 3 is an explanatory diagram of a suction wheel.

[Explanation of symbols]

 1 Work Vehicle 10 Arm 12 Suction Mouse 12a Cylinder Body 15 Swivel Joint 16 Bend Pipe 17 Suction Pipe 21 Vacuum Device 23 Exhaust Gas Suction Pipe

Claims (2)

(57) [Claims] 1. A work vehicle (1) introduced into an enclosed place, a suction mouse (12) attached to a movable arm (10) of the work vehicle, and a place enclosed by the suction mouse. A vacuum device (2
A device for suctioning and discharging sludge and the like, which comprises a suction pipe (17) guided to 1) and an exhaust gas suction pipe (23) for guiding engine exhaust gas of the work vehicle into the suction mouth. 2. The suction mouse comprises a cylinder body (12).
The suction and discharge device for sludge or the like according to claim 1, which comprises a) and a bent pipe (16) connected to a side portion of the cylinder body through a swivel joint (15).