JPH0323702B2 - - Google Patents

Description

DETAILED DESCRIPTION OF THE INVENTION Field of Industrial Application The present invention relates to an apparatus for recovering to the ground sludge and other sludge deposited in a sewer system.

BACKGROUND TECHNOLOGY Conventionally, as a device for recovering sludge etc. deposited in a sewerage system, a worker holding a suction hose connected to a recovery tank having an above-ground suction pump,
They entered the sewer system and collected sludge and other substances from the suction hose port into an above-ground collection tank, but the working environment inside the sewer system was poor and it was difficult to carry out collection work for long periods of time, resulting in a decrease in work efficiency. Furthermore, if the deposited sludge is in a solidified state, it is difficult to suction and collect it from the hose mouth using only suction power, and the sludge cannot be completely collected and removed from the sewer system. It had

Problems to be Solved by the Invention The present invention solves the above-mentioned drawbacks of the conventional methods, such as the fact that workers must directly enter the sewer system to collect sludge, and the sludge that has settled in a solidified state cannot be collected.
etc. is solved.

Means for Solving the Problems The present invention provides for the construction of erecting supports in separate manholes, and attaching a sheave to each support so that it can move up and down in the height direction of the sewer and laterally in the width direction of the sewer, A rope is suspended between the sheaves and the rope is reciprocated from the ground, and the rope is provided with a water jet nozzle that crushes solidified sludge into a fluid state that can be sucked, and a sludge suction hose port. The jet nozzle is connected to a pressure pump on the ground, and the suction hose port is connected to a sludge recovery tank with a suction pump on the ground.

Action: The rope suspended between the sheaves is moved from the ground to move the jet nozzle forward toward the sludge, while the sludge is crushed and fluidized and sucked through the suction hose port, and the jet nozzle is moved backward at its maximum forward position. The sheave is then moved back to its original position, the sheave is moved slightly downward, and the forward motion is repeated again, or the sheave is moved slightly in the width direction of the sewer and the forward motion is repeated again. By doing this in combination, the entire amount of sludge deposited in the sewerage system is suctioned and collected into an above-ground collection tank using the jet nozzle and suction hose port.

Example Figure 1 shows the first stage of sludge collection work in a sewer system.
It is a cross-sectional explanatory diagram of an embodiment, and the sedimentary sludge 3 existing between spaced apart manholes 2a and 2b of the sewer 1 is divided by sandbags 4a and 4b, and the manhole 2
Supports 5a and 5b are erected on the manholes 2a and 2b, respectively, and the supports 5a and 5b are connected to the covers 6a and 6 of the manholes 2a and 2b.
b is rotatably inserted and supported, and the sewer 1
Spiral grooves 7 carved into the pillars 5a and 5b inside
It has elevating frames 8a and 8b which are screwed together with a and 7b.

The elevating frames 8a, 8b have arms 9a, 9b extending on both sides in the width direction of the sewer 1 (see FIGS. 2 and 3), and springs 10a, 10a are attached to the tips of the arms 9a, 9b.
A pair of rollers 11a, 11b, 11b, 11b are attached which are pressed against the inner wall of the sewer 1 via 10b.

In addition, each of the elevator frames 8a and 8b has a sewer line 1.
a sheave holding frame 12a that is movable laterally in the width direction;
12b is attached, guide sheaves 13a, 13a are mounted on the holding frame 12a, and a hanging sheave 13b is mounted on the holding frame 12b.

As shown in FIG. 2, the sheave holding frames 12a and 12b are connected to ropes 15a and 15b that are hung around winding drums 14a and 14b provided on the lifting frames 8a and 8b, respectively, and bypass both ends of the arms 9a and 9b. It is tied at both ends.

Further, a moving wire 17 guided by the guide sheave 13a is stretched between the suspended sheave 13b and the winding drum 16 installed on the ground, and is placed in a horizontal state between the guide sheave 13a and the suspended sheave 13b. A jet nozzle 18 and a suction hose port 19 are attached to the stretched wire 17,
The jet nozzle 18 is connected via a hose to a fluid pressure pump 20 on the ground, and the suction hose port 19 is connected via a hose to a sludge recovery tank 21 having a suction pump on the ground.

During sludge collection work, a certain section of the sewer 1 is dammed with sandbags 4a, 4b, etc., and supports 5a, 5b are installed in manholes 2a, 2b apart from each other in the section.
are erected, and the pillars 5a, 5b are connected to handles 22a,
By rotating with 22b, the elevating frame 8a,
8b is located at a height near the top surface of the sludge, and the fluid pressure pump 20 and the sludge recovery tank 21 on the ground are
While operating the suction pump, the lifting frames 8a, 8
The sheave holding frames 12a and 12b are moved laterally by operating the handles 22a and 22b attached to b.
The deposited sludge 3 is fluidized by the jet nozzle 18, sucked through the suction hose port 19, and collected in the collection tank 21. The sludge is removed by sequentially lowering the height of the lifting frames 8a and 8b by operating the handles 22a and 22b. In addition to collecting the sludge in the height direction, the winding drum 16 on the ground is rotated to move the wire 17 in the direction of the arrow, and the jet nozzle 18 and suction hose port 19 are sequentially advanced to collect the sludge 3 in the length direction. be.

Moreover, in the second embodiment of the present invention shown in FIG.
One end of a, 23b is pivotally connected, and the other end is attached to the lifting frame 8a,
8b, and simultaneously supplies and discharges working fluid to the cylinder devices 23a and 23b.
The height positions of the sheave holding frames 12a and 12b are adjusted to the optimal sludge recovery position, and the sheave holding frames 12a and 12b are moved laterally by the cylinder devices 24a and 24b attached to the lifting frames 8a and 8b, and furthermore, Both ends of the wire 17 to which the jet nozzle 18 and the suction hose port 19 are attached may be wound around the winding drum 16 installed on the ground through the respective manholes 2a and 2b. In this case, the hanging sheave functions as a guide sheave 13a.

That is, even if the wire 17 is operated within the same manhole 2a as in the first embodiment shown in FIG.
Two manholes may be used.

The order of sludge collection work is the first and second steps above.
Not limited to the embodiment, the order of movement of the jet nozzle 18 and the suction hose port 19 in traversing, descending, and advancing may be changed.
The elevating means b is provided by spiral grooves 7a, 7 carved in the pillar.
In addition to b, a rack may be carved into the support and a drive pinion may be provided on the elevating frame, or the elevating frame may be suspended by a wire and the wire may be driven up and down by the rotation of a drum, and other methods may be used. Any known elevating means may be used.

Furthermore, the transverse drive of the sheave holding frames 12a, 12b is not limited to the above embodiment;
The guide sheave 13a may be rotated by a motor attached to the lifting frames 8a and 8b.
Alternatively, either the hanging sheave 13b can be moved to the lifting frame 8.
The rotation may be controlled by motors attached to a and 8b. In this case, there is no need to extend the wire 17 to the winding drum 16 on the ground, and operation of the wire 17 becomes easier.

Effects of the Invention The present invention is capable of fluidizing sludge when collecting sludge and other sludge deposited in a sewer system without requiring a worker to directly enter the sewer through the sludge suction port. Since the jet nozzle and the suction hose port for collecting sludge are moved from the ground in the sewer by mechanical means, the collection work can be carried out efficiently and continuously for a long time even in the sewer where the working environment is poor. Moreover, since the jet nozzle and the suction hose port can be moved simultaneously, it is possible to easily collect even the sludge that has settled and solidified, so it is possible to completely remove sludge from the sewer. do.

Since the sludge is sucked in through the suction hose port and immediately collected in the tank, the collection work can be carried out cleanly, and the effect is significant.

[Brief explanation of drawings]

The drawings show an embodiment of the present invention, and FIG. 1 is a front explanatory view of the first embodiment of the present invention inside a sewer, FIG. 2 is a plan view of the main part of the present invention inside a sewer, and FIG. FIG. 4 is a front view of the second embodiment of the present invention in a sewer. 1... Sewer, 2a, 2b... Manhole, 3
... Sludge, 5a, 5b... Pillar, 7a, 7b...
...Spiral groove, 8a, 8b...Elevating frame body, 12a, 1
2b... Sheave holding frame, 13a, 13b... Sheave, 17... Moving wire, 18... Jet nozzle, 19... Suction hose opening, 20... Liquid pressure pump, 21... Sludge recovery tank.

Claims (1)

[Claims] 1. Supports are erected in separated sewer manholes, and sheaves are attached to each support support so that they can be moved up and down in the height direction of the sewer and laterally movable in the width direction of the sewer, and a moving wire is suspended between each sheave. A sludge recovery device in a sewer system, which comprises: a jet nozzle and a suction hose port attached to a sewage system; the jet nozzle is connected to a fluid pressure pump via a hose; and the suction hose port is connected via a hose to an above-ground sludge recovery tank having a suction pump.