JPH0735549U - Mud dredger - Google Patents

Abstract

(57) [Summary] [Purpose] To enable efficient and high-concentration mud transport without causing water pollution. [Structure] In the boom 3 that is swingably mounted on the pontoon,
A pipe plate conveyor 12 composed of a plate 14 and a connecting ring 15 that circulate and separates the outward path and the return path is arranged, and the soil collecting auger 1 is provided at a dredging opening opened on the boom tip side.
8 is rotatably arranged, the mud scraped by the soil collecting auger 18 is fed to the pipe plate conveyor 12 side, and the mud is transported through the boom 3.

Description

[Detailed description of the device]

[0001]

[Industrial applications]

 The present invention relates to a dredger for collecting soft mud.

[0002]

[Prior art]

 Conventionally, the following types of dredgers have been used to repair and remove soft mud (such as sludge) in river and lake repair work. As one of them, there is a bucket type dredger, which uses various buckets. As a special one, there are closely-closed buckets (buckets designed to prevent mud spillage) and buckets with parallel opening / closing loci (opening / closing loci are parallel because the dredging surface is horizontal). There is a dredger to use. The other is a pump-type dredger, which is often used to collect sludge and the like, and uses a centrifugal pump, a vacuum pump, a mixed jet, compressed air, etc. as a suction source.

[0003]

[Problems to be solved by the device]

 By the way, the above-mentioned bucket-type dredging machine has a problem that the bottom surface of rivers and lakes is disturbed, and the bucket is raised and lowered to cause water pollution. In addition, the pump-type dredger has a problem in that a large amount of water is sucked in when pumping up because fluid is transported, and the transportation efficiency of mud is low. Therefore, in the present invention, it is an object to efficiently transport mud without causing water pollution, and it is an object to transport mud at a high concentration.

[0004]

[Means for Solving the Problems]

 The present invention has been made in consideration of the above-described problems, and an oscillating boom is installed on a pontoon so that the boom and the return ring are separated from each other by a plate and a connecting ring. The pipe auger configured as described above is arranged, and the soil collecting auger for feeding the scraped mud to the pipe plate conveyor is rotatably arranged at the dredging opening opened at the boom tip side. The above-mentioned problems are solved by providing a mud dredging machine.

[0005]

【Example】

 Next, the present invention will be described in detail with reference to the embodiments shown in FIGS. In FIG. 1, reference numeral 1 denotes a mud dredging machine. As shown in FIG. 1, the dredging machine 1 supports a boom 3 having a tip facing the bottom of the sea so that it can be rocked on a barge 2. The conveyor device 5 provided with the self-propelled device 4 is arranged on the top. The conveyor device 5 is extended outward so that its delivery end 6 is located on the soil carrier 7. Reference numeral 8 denotes a generator that serves as a power source for various electric devices on the pier 2.

As shown in FIG. 1, the boom 3 is supported by a bracket 9 so as to be capable of swinging in the vertical direction, and is pivotally supported by a support body 10 on the ship 2 to which the bracket 9 is connected. The boom 3 is provided so as to move up and down by expanding and contracting the cylinder 11 connected to the boom 3.

A pipe plate conveyor 12 is arranged on the boom 3. That is, the inside of the boom 3 which is hollow and has open ends is divided into two passages 13 in the longitudinal direction as an outward path and a return path, and the plurality of pipe plate conveyors 12 are provided. The plate 14 is connected by a connecting ring 15, and the plate 16 and the connecting ring 15 are circulated in the passage 13 by driving a motor 16 arranged at one end of the boom (see FIGS. 2 and 3). At the end of the boom 3 on the seabed side, as shown in FIGS. 2 and 3, a casing 17 whose lower surface is opened as a dredging port is connected to both wings, and a soil collecting auger 18 is rotatably provided therein. It is arranged. Each of the soil collecting augers 18 is driven and rotated by, for example, a rotational force transmitted from the pipe plate conveyor 12, and is provided so as to scrape mud on the sea floor from below and send it to the pipe plate conveyor 12 side. ing. The support 10 is rotatably installed with respect to the pontoon 2, and the boom 3 can be swung if necessary. Although the soil collecting auger is arranged on both wings at the tip of the boom in the above embodiment, the present invention is not limited to this.

In the mud dredger 1 having the above structure, the mud soil is agitated by the soil collecting auger 18 and sent to the pipe plate conveyor 12 side, and the operation of the pipe plate conveyor 12 moves the mud soil to the discharge port side at the other end of the boom 3. Send out. Then, the mud is dropped into the receiving side of the conveyor device 5 via the hopper 19 and is carried into the soil carrier 7 by the operation of the conveyor device 5.

[0009]

[Effect of device]

 As described above, the mud dredging machine of the present invention has an undulating boom installed on the pontoon so that it can swing, and comprises a plate and a connecting ring that circulate and move between the forward path and the return path in the boom. A pipe plate conveyor is arranged, and a soil collection auger for feeding the scraped mud to the pipe plate conveyor side is rotatably arranged at the dredging opening opened at the boom tip side. is there. In this way, the mud soil scratched by the soil collecting auger provided on the tip side of the boom is carried out by the pipe plate conveyor circulating in the boom, that is, the mud soil is carried out through the boom. Therefore, water pollution does not occur, and since it is not a method of sucking in with water, it is possible to efficiently carry out mud with a high concentration of mud, and it has excellent practical effects.

[Brief description of drawings]

FIG. 1 is an explanatory view showing an embodiment of a mud dredging machine according to the present invention.

FIG. 2 is an explanatory view showing one end side of the boom of the embodiment, with one part thereof cut away and shown from above.

FIG. 3 is an explanatory view showing one end side of the boom of the embodiment from the side.

[Explanation of symbols]

 1 ... Mud dredger 2 ... Barge 3 ... Boom 12 ... Pipe plate conveyor 13 ... Passage 14 ... Plate 15 ... Connection ring 16 ... Motor 17 ... Casing 18 ... Soil auger

Claims (1)

[Scope of utility model registration request] 1. A hoisting boom is swingably mounted on a pontoon, and a pipe plate conveyor including a plate and a connecting ring that divides an outward path and a return path and circulates is arranged in the boom, and a tip of the boom is arranged. A mud dredging machine, wherein a soil collecting auger for feeding the scraped mud to the pipe plate conveyor side is rotatably arranged at a dredging opening opened to the side.