JP2537485Y2 - Hydraulic pumping equipment for dredged soft soil - Google Patents

Description

[Detailed description of the invention] (Industrial application field) The present invention relates to a dredged soft sediment discharging facility for discharging dredged soft soil (sludge) to a landfill.

(Prior art) Conventionally, a small suction pump that pumps dredged soft sediment (sludge) transported by a sediment transporter while adding water, and a pumping mud pipe that extends from the suction pump. Use to pump dredged soft sediment to a landfill,
The dredged soft sediment was pumped to the landfill using a small-sized sand / mud pump and an air compressor, and a pressure / drainage pipe extending from the sand / mud pump.

(Problems to be solved by the present invention) Conventionally, as described above, a small suction pump and a suction pump for pumping dredged soft soil (sludge) transported by a sediment carrier while adding water thereto. Pumping the dredged soft soil to the landfill using a pumping mud pipe extended from the sand or a mixed pressure pumping device using a small sand mud pump and an air compressor, and extending from the sand mud pump The dredged soft sediment is pumped to the landfill using a pumping and drainage pipe. Therefore, (i) a large amount of dredged soft soil cannot be pumped.

(Ii) When the landfill is far from the unloading site or when the soft dredged soil contains clay or rock, the dredged soft soil cannot be pumped.

(Iii) With a dedicated workboat deployed separately from the soil carrier,
It is necessary to lay the pumping drainage pipe on the sea, change the position of the soft soil discharge port of the pumping drainage pipe, and fix it, which increases the equipment cost and takes time and effort.

(Iv) During pumping, a large amount of water must be added to the dredged soft soil, (a) the actual pumping volume of the sand decreases, and (b) wastewater treatment is required at the landfill. c) A lot of time is required for drying and solidification after landfill.

There was a problem.

The present invention is proposed in view of the above-mentioned problems. The purpose of the present invention is to increase the discharge pressure of the pump, to obtain high-viscosity earth and sand having high pumping resistance (a large amount of sand and stone). And high-pressure pumping resistance can be smoothly pumped over large distances without adding water to hoppers, bar screens,
The processing size of rocks and clay blocks in pretreatment equipment such as crushing equipment can be made as large as about 1/3 of the diameter of the pumping and discharging mud pipe, resulting in reduced work efficiency and work due to clogging of the bar screen, etc. Can eliminate the burden on the user, laying pumping and drainage pipes on the sea,
It is not necessary to change the position of the soft sediment discharge port of the pumping and drainage pipe or fix it by using a dedicated work vessel that is provided separately from the soil carrier, which can reduce equipment costs and save time when deploying a dedicated work vessel. Another object of the present invention is to provide a dredged soft soil-free water pumping facility capable of reducing the amount of dredging.

(Means for Solving the Problems) In order to achieve the above object, the present invention provides an unloading machine for unloading soft sediment from a sediment transport ship, and a large clay block and a large rock block from unloaded soft soil. A bar screen to be sorted and removed, a vibrating screen to sort and remove relatively small clay lumps and rocks from the soft soil passing through the bar screen, and a clay lump sorted and removed by the bar screen and the vibrating screen. A crushing device for cutting the rock mass into small pieces to enable pressure feeding, a pressure pump for pumping the crushed pieces and the soft earth and sand discharged from the vibrating screen to a landfill by a pressure discharge pipe, and a pressure pump for discharging the same. A dredged soft sediment-free pumping system comprising a spreading barge movably supporting the soft sediment discharge port of the mud pipe,
A lower hopper attached to the pump; and an upper hopper attached to the upper part of the lower hopper via the vibrating screen and the crushing device. The bar screen is provided in the upper hopper. Is provided with a stirrer for stirring and mixing the crushed pieces from the crushing device and the soft earth and sand from the vibrating screen, and a piston-type pump for moving a piston forward by fluid pressure and for pumping an object to be conveyed to the pump. ing.

(Action) The dredged soft soil transported by the sediment transport ship is discharged to the bar screen by the earth-lifting machine, where large clay blocks and large rock blocks are selected and removed from the soft soil, and the soft soil passing therethrough is removed. Upper hopper → Send to vibrating screen,
Here, relatively small clay blocks and rock blocks are selected and removed from the soft soil, and the clay blocks and rock blocks selected and removed by the bar screen and the vibrating screen are sent to a crusher, where the clay blocks and rock blocks are separated. The rock mass is cut into small pieces to enable pumping, and the crushed pieces and the soft earth and sand discharged from the vibrating screen are sent to a lower hopper, where they are stirred and mixed by a stirrer, and then a piston type pump, ie, The piston is advanced by fluid pressure, and the object is pumped to the landfill by the piston type pump and the pumping mud pipe. At that time, the tip of the pressure-feeding drainage pipe (soft soil discharge port) is moved to a desired position by a spraying barge and landfilled.

(Example) Next, a description will be given of the dredged soft soil-free pumping equipment of the present invention with reference to one embodiment shown in Fig. 1. (1) is a sediment transporter, and (2) is a dredged softer from the same (1). A large earth-lifting machine for unloading earth and sand, (3a) an upper hopper for receiving dredged soft soil discharged from the earth-lifting machine (2), (4) a bar screen provided on the upper hopper (3a), (5)
Is a vibrating screen provided just below the upper hopper (3a),
(6) is a crushing device provided next to the vibrating screen (5), (3b) is a lower hopper provided immediately below the vibrating screen (5) and the crushing device (6), and (7) is a lower hopper (7). A stirrer provided in 3b) is a piston type pump for pumping a conveyed object by advancing a piston by fluid pressure by a stirrer (8). The piston type pump (8) discharges the lower hopper (3b). The soft earth and sand discharged from the outlet is pushed out by the advancing piston.

(9) (9) (9) is the piston type pump (8)
Pumping mud pipe for pumping soft earth and sand from the sea, (10) and (10) are flexible pumping and discharging pipes interposed between the pumping and discharging pipes (9), and (11) are pumping and discharging pipes Floaters that support mud pipes (9) and (10).
A spray barge movably supporting (9).

Next, the operation of the dredged soft earth and sand-free pumping equipment shown in FIG. 1 will be specifically described.

The dredged soft soil transported by the sediment transporter (1) is unloaded to the bar screen (4) by the earth lifter (2),
Here, large clay blocks and large rock blocks are selected from soft soil,
Remove the soft soil that passed through here and remove it from the upper hopper (3a)
→ Sent to the vibrating screen (5), where relatively small clay blocks and rock blocks are selected and removed from the soft earth and sand, and the clay blocks selected and removed by the bar screen (4) and the vibrating screen (5). And the rock mass is sent to a crushing device (6), where the clay mass and the rock mass are cut into small pieces so that they can be pumped, and the crushed small pieces and the soft earth and sand discharged from the vibrating screen (5) are separated. After being sent to the lower hopper (3b) where it is stirred and mixed by the stirrer (7), the piston type pump (8) and the pumping and discharging mud pipes (9) (10) supported by the plurality of floaters (11) (9) (10)
According to (9), it is pumped to the landfill. At that time, the pumping mud pipe at the tip (soft earth and sand discharge port) (9) is sprayed with a barge (12)
To a desired position for landfill.

(Effects of the invention) The dredged soft soil-free water pumping equipment of the present invention discharges the dredged soft soil transported by the earth and sand carrier to the bar screen by the earth-lifting machine as described above. The rocks and large rocks are sorted and removed, and the soft earth and sand passing through them is sent to the upper hopper → vibrating screen.
Here, relatively small clay blocks and rock blocks are selected and removed from the soft soil, and the clay blocks and rock blocks selected and removed by the bar screen and the vibrating screen are sent to a crusher, where the clay blocks and rock blocks are separated. The rock mass is cut into small pieces to enable pumping, and the crushed pieces and the soft earth and sand discharged from the vibrating screen are sent to a lower hopper, where they are stirred and mixed by a stirrer, and then a piston type pump, ie, The piston is advanced by fluid pressure, and the object is pumped to the landfill by the piston type pump and the pumping mud pipe. At this time, the tip of the pumping mud pipe (soft earth and sand discharge port) is moved to a desired position by a spraying barge to perform landfilling, and the piston type pump is used for pumping to the landfill site. The pump discharge pressure can be increased, and high-viscosity soil and sand with high pumping resistance (sand with high sand and stone content and high pumping resistance) can be smoothly spread over large distances without adding water. Can be pumped.

Conventionally, a pressure-mixing device with a low discharge pressure (a pressure-mixing device combining a small-sized sand and mud pump and an air compressor) is used. In this case, water is required. In addition, it is necessary to reduce the processing size of rock mass and clay mass in pretreatment equipment such as hoppers, bar screens, crushers, etc. with respect to the diameter of the pumping and discharging pipes. In addition, clogging of the bar screen occurs, and the work for removing the clogging is required. As a result, the work efficiency is reduced, and the burden on the operator is increased. The above-mentioned piston type pump is used, and no water is required.
Moreover, the processing size of rock and clay in pre-treatment equipment such as hoppers, bar screens, and crushing equipment can be increased to about 1/3 of the diameter of the pumping and discharging mud pipe, and the clogging of the bar screen, etc. A reduction in work efficiency and an increase in burden on the operator can be eliminated.

In addition, it is not necessary to lay the pumping mud pipe on the sea, change the position of the soft sediment discharge port of the pumping pipe, or fix it by using a dedicated work vessel that is separately installed from the soil carrier, which can reduce equipment costs. The labor required for deploying a dedicated work boat can be reduced.

[Brief description of the drawings]

FIG. 1 is an explanatory view showing one embodiment of a dredged soft earth and sand-free pumping equipment according to the present invention. (1)… sediment transporter, (2)… earth lifter, (3a)…
Upper hopper, (3b) Bottom hopper, (4) Bar screen, (5) Vibrating screen, (6) Crusher, (7) Stirrer, (8) Piston type feeding Pump, (9) (10) ... pumping and drainage pipe, (11) ... floater, (12) ... spraying barge.

──────────────────────────────────────────────────続 き Continued on the front page (51) Int.Cl. ⁶ Identification code Agency reference number FI Technical indication F04B 15/02 F04B 15/02 Z (72) Inventor Masanori Umihara 3-54 Hosoe Shinmachi, Shimonoseki City, Yamaguchi Prefecture No. Kanmon Port Construction Co., Ltd. (56) References JP-A-54-21036 (JP, A) JP-A-59-10627 (JP, A) JP-B-51-4017 (JP, B2)

Claims (1)

(57) [Scope of request for utility model registration] 1. An earth-lifting machine for unloading soft earth from a sand carrier, a bar screen for sorting and removing large clay ingots and large rocks from the unloaded soft earth, and a soft sediment passing through the bar screen. A vibrating screen for selecting and removing relatively small clay blocks and rock blocks from the above, and a crushing device for cutting the clay blocks and rock blocks sorted and removed by the bar screen and the vibrating screen into small pieces so that they can be pumped; A pump for pumping the crushed small pieces and the soft earth and sand discharged from the vibrating screen to the landfill by a pumping and discharging pipe, and a spray barge for movably supporting the soft earth and discharging outlet of the pumping and discharging pipe. In a dredging soft soil-free pumping equipment comprising: a lower hopper attached to the pump, and the vibrating screen and the crushing device above the lower hopper. And an upper Hotsupa attached to,
The bar screen is provided in the upper hopper, and a stirrer is provided in the lower hopper for stirring and mixing the crushed pieces from the crushing device and the soft earth and sand from the vibrating screen.
A dredged soft earth and sand-free pumping equipment, characterized in that a piston-type pump is used to feed a conveyed object by moving a piston forward by fluid pressure to the pump.