JPH07538U - Device for cleaning and transporting dredged soil - Google Patents

Abstract

(57) [Summary] [Structure] The washing water tank 1 is provided with a shelf 3 that is one step higher than the sand pit 2, and a basket-shaped bucket 16 that is lifted and lowered by a lifting device 18 is installed on the shelf 3 and the bottom of the shelf 3 is installed. The washing water jetting device 19 for jetting the washing water stream 21 in the upward flow is installed, and the shelf 3
A transfer water injection device 24 for injecting the transfer water flow 26 toward the sand pit 2 was installed on the side surface of the. [Effect] By setting the mesh opening of the basket type bucket 16 to an appropriate size, it is possible to classify the remaining solids into large and small and light weight, and to wash the dredged soil 13 and the inside of the basket type bucket 16. The remaining solids can be continuously pulled up, the work time required for cleaning and conveying can be shortened, and the processing capacity can be improved, and the cleaning water flow 21 and the transfer water flow 26 can be used in two directions. The solid matter can be reliably washed.

Description

[Detailed description of the device]

[0001]

[Industrial applications]

 The present invention relates to a cleaning and conveying device for dredged sediment containing solid matter such as sediment, dust, rubble, and cans that have settled in sewer pipes, drainage channels, and the like.

[0002]

[Prior art]

 Conventionally, the dredged material that has been pulled up from a sewer pipe or drainage channel, etc. is put into a water tank and then washed by stirring with water flow or aeration. Solids such as are deposited on the bottom of the aquarium. Then, the sediment deposited at the bottom of the aquarium was taken out by a grab bucket, put into a storage tank, drained, and then transferred to a transport vehicle by a club bucket again and transported to the disposal site.

[0003]

[Problems to be solved by the device]

 However, in the above-described conventional configuration, the force for stirring the wash water and the solid matter is weak, and the washing of the solid matter is insufficient, so that it is difficult to receive the waste at the disposal site. Moreover, since a certain standing time was required between the cleaning work and the precipitation removal work, it was not possible to perform the cleaning and the precipitation removal continuously. In addition, garbage, sludge, rubble, cans, bottles, etc. are carried out in a mixed state with various solid substances with a size of 1 mm to several hundred mm, so solid substances of a size unacceptable at the disposal site are also mixed. There was a problem.

The present invention solves the above-mentioned problems. In addition to reliably cleaning solid matter, it is possible to continuously perform a cleaning operation and an operation of removing the washed solid matter. An object of the present invention is to provide a cleaning and conveying device for dredged soil that can classify and take out objects.

[0005]

Means for Solving the Problems In order to solve the above problems, a cleaning and transporting device for dredged soil according to the present invention is provided with a settling pit in which a lifting device is arranged in a washing water tank and a shelf part higher than the settling pit. A basket-type bucket that can be lifted and lowered by a lifting device is installed in the section, a wash water injection device that injects a wash water flow in an upward flow is installed on the bottom of the shelf, and the transfer water flow is directed to the sand pit on the side of the shelf. A transfer water jet device for jetting is installed.

[0006]

[Action]

 With the above-described configuration, the dredged soil is put into the basket bucket, and the wash water jet is sprayed upward from the bottom of the basket bucket by the wash water injection device to stir and wash the dredged sand in the basket bucket. As a result of this cleaning, the floating residue remains over the top edge of the basket bucket, and sand, mud, etc. flows out through the mesh of the basket bucket, and the heavy and coarse objects are in the basket bucket. Remains inside.

Then, the transferred water stream is jetted from the side portion of the basket type bucket toward the sand pit, and the sand, mud, etc. remaining in the basket type bucket are washed out through the mesh of the basket type bucket by the transferred water stream to the outside. The sand and mud that have flowed out of the mold bucket are washed away by the settling pit. Therefore, it is possible to classify what remains inside and what flows out to the outside by the basket type bucket, and set the mesh opening of the basket type bucket to an appropriate size so that it remains in the basket type bucket. It is possible to classify solids of small and large sizes.

Then, the sand and mud accumulated in the sand pit are carried out of the washing water tank by the sand lifting device, and the basket type bucket is lifted by the lifting device to take out the solid matter remaining in the basket type bucket.

[0009] Therefore, in the cleaning / conveying process from the loading and unloading of the dredged sand, the conventional stationary time is not required, and the cleaning work of the dredged sand and the work of pulling up the solid matter remaining in the basket bucket are continuously performed. It is possible to shorten the work time required for cleaning and conveying from loading to unloading, and improve the processing capacity per unit time. In addition, solids can be reliably washed by the bidirectional water flow of the upflow wash water flow and the horizontal transfer water flow, and the sand and mud accumulated in the sand pit is expected to have a further washing effect in the sand lifting device. it can.

[0010]

【Example】

 An embodiment of the present invention will be described below with reference to the drawings. In FIG. 1, a wash water tank 1 has a sand pit 2 on one side and a shelf 3 higher than the sand pit 2 on the other side. A jet pump 4 is installed in the sand pit 2 as a sand lifting device. The sand lifting device is not limited to the jet pump 4 and can be a V bucket elevator or a screw conveyor, but the jet pump 4 can be expected to have the most cleaning effect.

A drive water tank 5 and a sand settling machine 6 are provided on one side of the opening peripheral edge of the wash water tank 1 facing the sand settling pit 2, and the sand settling machine 6 is constituted by a screw conveyor. Then, a drive water pump 8 and a drive water control valve 9 are provided in the middle of the drive water pipe 7 that connects the drive water tank 5 and the jet pump 4, and a sand raising pipe 10 that connects the settler separator 6 and the jet pump 4 is connected. A sand lift control valve 11 is provided in the middle of.

On the other side of the opening peripheral edge of the cleaning water tank 1 facing the shelf 3, a carrier 12 is provided with an input port 14 for dumping the dredged sand 13 and a large heavy object is placed above the input port 14. A storage hopper 15 is installed. Further, a basket type bucket 16 which can be raised and lowered freely inside and outside the cleaning water tank 1 is arranged on the shelf 3, and the basket type bucket 16 is connected to a lifting device 18 such as a skip hoist via a rope 17. There is.

A vertical recess 3b is formed on the bottom surface 3a of the shelf 3 so as to face the bottom of the basket bucket 16, and the cleaning water injection nozzle 20 of the cleaning water injection device 19 is arranged in the recess 3b. is doing. The cleaning water spraying device 19 causes the cleaning water sprayed from the cleaning water spraying nozzle 20 to be once reflected on the bottom surface of the concave portion 3b and sprayed as an upward cleaning water flow 21 toward the basket bucket 16. The wash water injection device 19 communicates with the pressure water supply pipe 23 via the wash water control valve 22, and the pressure water supply pipe 23 communicates with the drive water pipe 7 at the base end side.

A recess 3d is formed on the side surface 3c of the shelf 3 so as to face the side of the basket bucket 16, and the transfer water injection nozzle 25 of the transfer water injection device 24 is provided in the recess 3d. Are arranged. The transfer water injection device 24 injects the transfer water flow 26 from the transfer water injection nozzle 25 toward the sand pit 2. The transfer water injection device 24 communicates with the pressure water supply pipe 23 via a transfer water control valve 27.

The operation of the above configuration will be described below. The dredged soil 13 loaded on the carrier 12 is loaded into the basket bucket 16 through the loading port 14. Then, the wash water control valve 22 is opened, and the water in the drive water tank 5 which is pumped by the drive water pump 8 is supplied to the wash water injection device 19 through the pressure water supply pipe 23. The pressure water supplied to the cleaning water jetting device 19 becomes a cleaning water flow 21 and is jetted upward from the bottom of the basket bucket 16 to stir and clean the dredged sand 13 in the basket bucket 16.

As a result of this cleaning, the floating residue will flow out beyond the upper edge of the basket bucket 16 and the sand, mud, etc. will flow out through the mesh of the basket bucket 16 and will be heavy or coarse. Remain in the basket-shaped bucket 16.

Next, the transfer water control valve 27 is opened, and the pressure water is supplied to the transfer water injection device 24 through the pressure water supply pipe 23. The pressurized water supplied to the transfer water jetting device 24 becomes a transfer water flow 26 and is jetted from the side portion of the basket bucket 16 toward the sand pit 2. The transfer water stream 26 washes out the sand and mud remaining in the basket bucket 16 through the mesh of the basket bucket 16 to the outside, and the sand and mud that flowed out of the basket bucket 16 into the settling pit 2. Flush away. At this time, the jetting time of the cleaning water flow 21 and the transfer water flow 26 is adjusted so that the jet pump 4 is not buried by the sedimentation accumulated in the sedimentation pit 2 and the sand cannot be lifted.

By the above-described action, the basket type bucket 16 can classify the residual type inside and the external type, and by setting the mesh opening of the basket type bucket 16 to an appropriate size, It is possible to classify the size and the weight of the solid matter remaining in the basket-type bucket 16.

After that, the drive water control valve 9 and the sand lifting pipe 11 are opened, and the driving water is supplied to the jet pump 4 to pull up the sand and mud accumulated in the sand setting pit 2 through the sand lifting pipe 10 to the settling separator 6. . The settling sand pulled up to the settling separator 6 is drained and then put into a container 28.

On the other hand, the basket type bucket 16 is lifted by the lifting device 18, the solid matter remaining in the basket type bucket 16 is taken out to the coarse and heavy material storage hopper 15, and the washed solid matter is removed from the coarse and heavy material storage hopper 15. Drop on the carrier 12.

Therefore, since large solid matters such as debris and iron scraps contained in the dredged soil 13 are separated by the basket bucket 16, the jet pump 4 and the sand settler 6 are not blocked by the solid matters. In addition, in the cleaning / transporting process from the loading of the dredged soil 13 to the unloading, there is no need for the stationary time as in the conventional case, and the cleaning operation of the dredged soil 13 and the operation of pulling up the solid matter remaining in the basket bucket 16 are continued. Since it can be carried out in a single step, the work time required for cleaning and carrying from loading to unloading can be shortened, and the processing capacity per unit time is improved.

Further, the solid water can be reliably washed by the bidirectional water flow of the upflow wash water flow 21 and the horizontal transfer water flow 26, and the sand and mud accumulated in the sand pit 2 can be surely washed. Can expect further cleaning effect in the jet pump 4. In addition, when performing more intensive cleaning, the water in the cleaning water tank 1 is discharged by the jet pump 4 to maintain the water level below the bottom surface of the basket bucket 16, and in this state, the cleaning water flow 21 and the transfer water flow are maintained. 26 may be sprayed and the sprayed water may directly collide with the solid matter.

[0023]

[Effect of device]

 As described above, according to the present invention, it is possible to classify what remains inside and what flows out outside by the basket type bucket, and set the mesh opening of the basket type bucket to an appropriate size. As a result, it is possible to classify the size of the solid matter left in the basket type bucket into light and heavy. It is possible to continuously perform the work of cleaning the dredged material and the work of pulling up the solids remaining in the basket-type bucket, shortening the work time required for cleaning and conveying from loading to unloading, and improving the processing capacity per unit time. Can be achieved. Solids can be reliably washed by the two-way water flow of the wash water flow and the transfer water flow.

[Brief description of drawings]

FIG. 1 is an overall configuration diagram of a cleaning / conveying apparatus according to an embodiment of the present invention.

[Explanation of symbols]

 1 Washing Water Tank 2 Sand Pit 3 Shelf 13 Dredged Sediment 16 Basket Bucket 18 Lifting Device 19 Washing Water Injection Device 21 Washing Water Flow 24 Transfer Water Injection Device 26 Transfer Water Flow

Claims (1)

[Scope of utility model registration request] 1. A washing water tank is provided with a sand pit for arranging a sand unloading device and a shelf part higher than the sand pit, and a basket type bucket which is lifted and lowered by a lifting device is installed on the shelf part, and the shelf is directed upward on the bottom surface of the shelf part. The cleaning and transporting device for spraying the cleaning water flow by the stream, and the transfer water spraying device for spraying the transporting water flow toward the sand pit on the side surface of the shelf part.