JP6552706B1 - Water channel sediment removal device - Google Patents

Abstract

An object of the present invention is to save labor in removing sediment from a waterway. SOLUTION: A traveling unit 11 that travels at the bottom of a water channel 2, a stirring unit 21 that disperses and stirs the deposits at the bottom of the water channel 2, and a deposit that is swept up by the stirring unit 21 is received. A screw conveyor 71 (landing unit) for sending upward, so that the operation of crushing and stirring the deposit and the operation of unloading the crushed and stirred deposit can be performed in parallel. It is possible and labor can be saved. [Selection] Figure 1

Description

  BACKGROUND OF THE INVENTION Field of the Invention The present invention relates to a waterway sediment removing apparatus for removing sediments such as sediment deposited in a waterway.

  The drainage channel, which is essential for agriculture, is sediment deposited at the bottom of the channel from the upstream river and the farmland beside the channel. In order to ensure stable supply of irrigation water and drainage drainage capacity, it is necessary to periodically remove waterway sediments. For larger channels, backhoes and other mechanical devices can be used to remove deposits. On the other hand, in small-scale waterways where mechanical devices can not enter to the side, sediment removal is performed manually. When removing sediment manually, the operator repeatedly performs digging and pumping at low attitudes. Such deposit removal work places a heavy burden on workers, and labor saving has been required.

  As an apparatus for saving the deposit removal, Patent Document 1 discloses a water channel deposit removing apparatus for crushing the deposit using a high-pressure fluid. This water channel sediment removal apparatus performs suction and conveyance of the crushed sediment using compressed air.

JP-A-2018-76748

  An object of the present invention is to save labor for removing sediments from waterways.

The channel sediment removing apparatus according to the present invention is an apparatus for removing sediment in a channel, comprising: a traveling unit that travels the bottom of the channel; and a stirring unit that crushes and stirs and removes the sediment at the bottom of the channel And a raised soil portion for receiving the sediment scraped up by the stirring portion and sending it upwards, the raised soil portion comprising a screw including a pair of screws arranged in parallel so that the blades are axially overlapped. The pair of screws is characterized in that the winding directions of the blades are opposite to each other and rotate inward .

  According to the present invention, it is possible to save labor in removing the sediment in the water channel.

It is a right view of the waterway deposit removal apparatus which concerns on this embodiment. It is a top view of the channel sediment removal device concerning this embodiment. It is a front view of a channel sediment removal device concerning this embodiment. It is a perspective view of the lower end part of the stirring part and the earthing | grounding part. It is explanatory drawing which shows the state which the paddle inclined backward. It is explanatory drawing of a earthing | lifting part, Comprising: It is a perspective view of the channel deposit removal apparatus of the state from which the stirring part was removed. It is a figure which shows the state in which a pair of screw was arrange | positioned in parallel so that a braid | blade may overlap. It is a figure for demonstrating a case and a soil collection part. It is a figure for demonstrating the processus | protrusion provided in the upper surface of a braid | blade. It is a figure for demonstrating the processus | protrusion provided in the upper surface of a braid | blade. It is an explanatory view showing the state where the paddle leaned forward. It is a figure for demonstrating the other form of a case.

An embodiment of the present invention will be described with reference to the attached drawings.
For convenience, the right direction in FIG. 1 is referred to as the front direction, and the left direction in FIG. 1 is referred to as the rear direction. Further, the upward direction in FIG. 2 is referred to as the left direction, and the downward direction in FIG. 2 is referred to as the right direction. Therefore, FIG. 1 is a right side view of the water channel deposit removing apparatus 1 according to the present embodiment. As shown in FIG. 1, the waterway sediment removal apparatus 1 includes a traveling portion 11 which travels the bottom of the waterway 2 (see FIG. 6) and sediments 3 such as earth and sand deposited on the bottom of the waterway 2 (see FIG. 6) And a screw conveyor 71 (lifting unit) that receives the sediment 3 scraped up by the stirring unit 21 and feeds the sediment 3 upward.

  The traveling unit 11 has a traveling frame 12 formed by combining shape steel. A traveling crawler belt 13 (crawler) is attached to the lower center of the traveling frame 12. A travel motor 14 (travel crawler belt drive unit) is attached to the upper portion of the travel frame 12. An endless chain 18 is wound around the sprocket 15 attached to the output shaft of the traveling motor 14 and the sprocket 16 attached to the axle of the drive wheel 16 of the traveling crawler belt 13. At the rear end of the traveling frame 12, an inverter 18 is mounted which controls the number of rotations and the rotational direction (forward / reverse rotation) of the traveling motor 14. That is, the traveling motor 14 is an inverter motor and can be fed by a portable small-sized generator. By operating the lever 5 attached to the handle 4 of the upper frame 6, the operator can advance / retreat the traveling unit 11, and thus the channel sediment removal device 1, at an intended speed. .

  As shown in FIGS. 2 and 3, the traveling frame 12 is provided with a pair of auxiliary wheels 19 </ b> L and 19 </ b> R whose positions can be adjusted in the vertical and horizontal directions. The pair of auxiliary wheels 19L and 19R is grounded on both sides of the water channel 2 and stabilizes the posture of the traveling unit 11 traveling on the bottom. The traveling unit 11 has an upper frame 6 attached to the traveling frame 12. The upper frame 6 is formed by combining shape steel, and is connected to the traveling frame 12 via a universal joint 7. As a result, as shown in FIGS. 1 and 2, a body frame of a hand track type is formed. Here, the upper frame 6 can rotate around the rotation center C1 (see FIG. 1) with respect to the traveling frame 12, and can rotate around the rotation center C2 (see FIG. 2). For convenience, the rotational movement of the upper frame 6 about the rotational center C1 (rotational axis) is referred to as vertical rotation, and the rotational movement of the upper frame 6 about the rotational center C2 (rotational axis) is referred to as horizontal rotation.

  A stirring unit 21 is attached to the front end of the upper frame 6. The agitation unit 21 includes a prime mover 22 (“internal combustion engine” in the present embodiment) provided at the upper end and an impeller 23 provided at the lower end. The impeller 23 is driven by the prime mover 22 and rotates around a rotation axis L1 (see FIG. 3) extending horizontally along the left-right direction (width direction of the water channel 2). The impellers 23 are formed symmetrically in a front view (see FIG. 3). The impeller 23 has a pair of left and right rotors 31 and 51 (the right rotor 51 is shown in FIG. 4) disposed coaxially with the rotation axis. The rotors 31 and 51 are formed in a cylindrical shape. The rotors 31 and 51 are provided with shaft portions 32 and 52 coaxially arranged with respect to the rotation axis. In addition, although a pair of axial part 32,52 is formed in a cylindrical shape, it can be made into a column shape, a rectangular tube shape, a prism shape, etc.

  As shown in FIGS. 4 and 5, a pair of paddles 53 and 54 is attached to the right shaft 52. The pair of paddles 53, 54 is rotationally symmetrical about the rotation axis L1 (see FIG. 3). The paddles 53, 54 have plates 55, 56 made of steel plates formed in a substantially rectangular shape. The plates 55 and 56 are formed with notches 61 and 62 for avoiding interference with the rotor 51. In other words, in the plates 55 and 56, the stirring ability is enhanced by extending the tip end (the end remote from the shaft 52) inward. The plates 55, 56 have base portions 57, 58 fixed to the shaft portion 52, and inclined portions 59, 60 inclined with respect to the base portions 57, 58. The plates 55 and 56 are fixed to the rotor 51 and the shaft portion 52 by being fixed by bolts and nuts (reference numeral omitted) which penetrate the shaft portion 52.

  As shown in FIG. 5, the paddles 53 and 54 are arranged such that the base portions 57 and 58 of the plates 55 and 56 face each other with the shaft portion 52 interposed therebetween. Further, the paddles 53 and 54 are arranged so that the mutual bases 57 and 58 of the plates 55 and 56 are parallel to each other. The inclined portions 59 and 60 are inclined backward with respect to the base portions 57 and 58. In other words, the inclined portions 59 and 60 are tilted in the direction opposite to the rotation direction of the rotor 51 (clockwise direction in FIG. 5) with respect to the base portions 57 and 58 having an inclination angle of 0 ° (fall later). It has a slope.

  As shown in FIGS. 4 and 5, scrapers 63 and 64 are fixed to the front ends of the plates 55 and 56 (inclined portions 59 and 60). The scrapers 63 and 64 are attached to the surfaces of the plates 55 and 56 on the rotation direction side of the rotor 51. The scrapers 63 and 64 are rubber plates and project from the tip of the plates 55 and 56. As described above, the impellers 23 are formed symmetrically in the left-right direction. Therefore, in order to simplify the description of the specification, description of the left side portion of the impeller 23 is omitted.

  As shown in FIG. 6, a screw conveyor 71 is attached to the upper frame 6. As shown in FIGS. 7 and 8, the screw conveyor 71 has a pair of screws 72 and 73 arranged in parallel on the left and right. The left side (right side in FIG. 7) screw 72 has a right-handed blade 72A, and the right side (left side in FIG. 7) screw 73 has a left-handed blade 73A. The screw 72 and the screw 73 have the same outer diameter and lead (pitch) of the blades 72A and 73A, and the blades 72A and 73A alternately overlap with each other at a constant interval in the axial direction (vertical direction in FIG. 7). Arranged as. The screw conveyor 71 is disposed to be inclined such that the axes of the screws 72 and 73 are inclined backward. The screw conveyor 71 is adjustable in inclination angle, that is, the inclination angle of the axes of the screws 72 and 73 with respect to the horizontal plane, and is 50 ° in FIG.

  As shown in FIGS. 6 to 8, the screw conveyor 71 has a case 74 that accommodates the screws 72 and 73. The case 74 is made of, for example, an acrylic resin. As shown in FIG. 8, the case 74 has an outer periphery of two circles arranged so that their cross sections by planes perpendicular to the axes of the screws 72 and 73 have the same diameter and share chords. In other words, it is formed in the shape of the outer periphery (hereinafter referred to as "vene shape") of the two sets of Venn diagrams. Thereby, the gap between the inner wall of the case 74 and the outer peripheral edge of the blade 72A and the blade 72A is kept substantially the same over the entire length of the screws 72 and 73. In addition, the axial direction both ends (intermediate part as needed) of the screws 72 and 73 are rotatably supported by bearings (illustration omitted).

  As shown in FIG. 6, the screw conveyor 71 has a conveyor frame 75 formed by combining aluminum alloy molds. A conveyor drive motor 76 is attached to the upper end of the conveyor frame 75. The conveyor drive motor 76 is an inverter motor, and can be fed by a portable small-sized generator. The screw conveyor 71 decelerates the driving force of the conveyor drive motor 76 by the reduction mechanism 77 and transmits it to the screws 72 and 73. When the conveyor drive motor 76 rotates in the normal direction, the screw conveyor 71 rotates clockwise (the screw 72 rotates in the forward direction, and "clockwise" in FIG. 8). The screw 73 having the left-handed blade 73A rotates left (in the positive rotation of the screw 73 and "counterclockwise" in FIG. 8). As a result, the screws 72 and 73 rotate inward as viewed from the front (the impeller 23 side), and the sediment 3 (earth and sand) scraped up by the impeller 23 of the stirring unit 21 is transferred upward in the case 74 Be done.

  As shown in FIG. 9, on the upper surfaces of the blades 72A and 73A of the screws 72 and 73, protrusions 78 and 79 extending from the inner peripheral side to the outer peripheral side are provided. The projections 78 and 79 on the blades 72A and 73A are inclined forward with respect to the positive rotation (inward rotation) direction. In other words, the protrusions 78 and 79 shift a line segment (refer to FIG. 10) extending in four directions around the axes of the screws 72 and 73 by a certain distance to the side opposite to the side of the screws 72 and 73 in the forward rotation direction, Furthermore, the shape which extended the side close | similar to an axis | shaft is comprised. In this way, when the screws 72 and 73 are rotated forward (rotated inward) by tilting the projections 78 and 79 forward, the centrifugal force acting on the sediment 3 (sediment) by the forward rotation of the screws 72 and 73. The direction of the force (sediment release direction) is directed in the forward rotation direction of the screws 72 and 73.

  As shown in FIG. 4, at the lower end portion of the conveyor frame 75, a receptacle that opens the sediment 3 (earth and sand) scraped by the impeller 23 of the stirring unit 21 to the lower end portion of the case 74 of the screw conveyor 1. A soil collecting section 81 is provided to make it 82 lead. The soil collecting portion 81 includes a back plate 83 that covers the back surface (rear side surface) of the lower end portion of the conveyor frame 75, side plates 84 and 85 that cover left and right side surfaces of the lower end portion of the conveyor frame 75, and side plates 84 and 85. And a widening plate 86, 87 extending from the lower end to the front (in the advancing direction of the waterway sediment removing device 1 and upward in FIG. 8). The widening plates 86 and 87 have a substantially triangular shape, and are provided so that the distance in the left-right direction spreads (spreads) toward the front. A bottom plate is not provided between the widening plates 86 and 87, but a reinforcing plate can be provided as needed.

  As shown in FIG. 4 and FIG. 6, the soil collection portion 81 has a slider 88 for adjusting the opening height of the receptacle 82. The opening height of the socket 82 is adjusted by adjusting the projection length of the slider 88 from the lower end of the case 74. The slider 88 is slidably attached to the case 74 in such a manner that the slider 88 is partially overlapped with the front surface of the lower end portion of the case 74 of the screw conveyor 71. The slider 88 is made of the same acrylic resin as the case 74, and has a shape along the front surface of the lower end portion of the case 74. The soil collecting portion 81 adjusts the protruding length of the slider 88 in the downward direction (conveyor axis direction) with respect to the lower end portion of the case 74, in other words, the interval between the lower end portion of the slider 88 and the bottom portion of the water channel 2. Thus, the opening height of the receptacle 82 can be adjusted.

  As shown in FIG. 6, the water channel sediment removing apparatus 1 is configured to receive the sediment 3 transferred (pumped) by the screw conveyor 71, that is, a chute 89 that receives the earth and sand discharged from the discharge port 80 of the screw conveyor 71. (Slider). The chute 89 has a groove shape opened at the top. The chute 89 is fixed to the conveyor frame 75. The chute 89 extends leftward from the conveyor frame 75 with a downward slope. As a result, the sediment 3 (earth and sand) discharged from the screw conveyor 71 is discharged by the chute 89 to the side (for example, “the weir”) on the left side of the water channel 2.

The effect of the water channel deposit removal apparatus 1 which concerns on this embodiment mentioned above is demonstrated.
First, for example, the waterway sediment removing device 1 is transported to a place where the vehicle can enter, and the waterway sediment removing device 1 is unloaded from the vehicle at that place. Next, the waterway sediment removal apparatus 1 is allowed to self-propelled to the waterway 2. At this time, the operator follows the waterway deposit removing device 1 by operating the handle 4 with both hands in the manner of a hand track. The operator can adjust the traveling speed of the waterway sediment removing device 1 by operating the lever 5 provided on the handle 4. The forward / backward movement of the waterway sediment removal apparatus 1 can be switched by operating the switch of the operation box 8 (see FIG. 2) attached to the upper frame 6. In addition, the traveling part 11, and the stirring part 21 and the screw conveyor 71 (lifting part) can be easily desorbed, and it is disassembled in the place where the approach by the self-propelled of the waterway sediment removing device 1 is difficult. Can be carried in.

  Next, the water channel sediment removal device 1 is made to enter the water channel 2, and the width and height of the auxiliary wheels 19L and 19R are adjusted. Here, the stirring unit 21 and the screw conveyor 71 (lifting unit) are operated, but the timing of the operation may be immediately before the waterway deposit removing device 1 is made to enter the waterway 2. The rotational speed adjustment, ON / OFF, and forward / reverse rotation of the screw conveyor 71 can be switched by operating the switch of the operation box 8 or the inverter 18. Next, when the water channel deposit removing device 1 is moved forward, the impeller 23 of the stirring unit 21 digs up the sediment 3 such as earth and sand accumulated at the bottom of the water channel 2 and crushes the digged up sediment 3. And stir.

  The impeller 23 scrapes the stirred sediment 3 (earth and sand) toward the receiving port 82 of the soil collecting portion 81 at the lower end portion of the screw conveyor 71. The sediment 3 (earth and sand) lifted up by the impeller 23 is guided to the receiving port 82 by the widening plates 86 and 87 of the soil collecting portion 81. The screw conveyor 71 continuously lifts (transfers upward) the deposit 3 guided to the receiving port 82 by a pair of screws 72 and 73 rotating inward. The sediment 3 thus removed is transferred from the discharge port 80 of the screw conveyor 71 to the chute 89 and is further discharged from the chute 89 to the left side of the water channel 2. In addition, the sediment 3 built up along the water channel 2 is collect | recovered by a worker after completion of the removal operation of the sediment 3 of the water channel 2, or it is put on the gravel surface.

  According to the present embodiment, the water channel deposit removing apparatus 1 includes a traveling unit 11 that travels in the bottom of the water channel 2, a stirring unit 21 that crushes and stirs the sediment 3 in the bottom of the water channel 2, and agitation A screw conveyor 71 (landing unit) that receives the sediment 3 scraped by the unit 21 and sends it upward, so that the deposit 3 is crushed and stirred, and the crushed and stirred deposit It is possible to carry out the work of removing the soil 3 at the same time, and the work can be saved.

  According to the present embodiment, since the traveling unit 11 includes the hand truck type main body frame, it is easy to move and work, and the work can be saved. Moreover, since the traveling unit 11 includes a traveling crawler belt 13 and a traveling motor 14 (traveling crawler belt drive unit) that drives the traveling crawler belt 13, a narrow road or a road where mechanical equipment such as a backhoe or a vehicle cannot enter is provided. It is possible to travel even on unintended bad roads. In addition, since the inverter motor is applied to the traveling motor 14, the traveling speed of the traveling unit 11, and thus the water channel sediment removing device 1 can be adjusted according to the property of the deposit 3 (sediment), and further forward / You can switch back. In addition, by performing inverter control of the traveling motor 14, it is possible to prevent a sudden start or a sudden stop of the traveling unit 11, and it is possible to improve traveling stability. Moreover, since the traveling unit 11 includes the auxiliary wheels 19L and 19R, traveling stability during the movement and removal work is ensured.

  According to the present embodiment, the upper frame 6 and the traveling frame 12 are connected via the universal joint, and the stirring unit 21 and the screw conveyor 71 (lifted soil portion) are attached to the upper frame 6. Can be rotated vertically and horizontally with respect to the traveling frame 12. Therefore, the operator operates the handle 4 of the upper frame 6 to move the stirring portion 21 and the screw conveyor 71 in the water channel 2 in the width direction (left and right direction) and the depth direction (vertical direction) of the water channel 2 By doing this, the sediment 3 in the water channel 2 can be reliably removed without being left.

  According to the present embodiment, the stirring unit 21 includes the impeller 23 and the motor 22 for driving the impeller 23. The impeller 23 rotates left and right around a horizontal rotation axis L1 extending in the left and right direction. A pair of paddles 33, 34 and 53, 54 are provided. Therefore, when the impeller 23 is rotated in one direction about the rotation axis L1, the sediment 3 in the water channel 2 is crushed and stirred by the paddles 33, 34 and 53, 54, and further paddles 33, 34 and 53, 54 is scraped up toward the receptacle 82 of the screw conveyor 71. Also, by mounting rubber scrapers 43, 44 and 63, 64 at the tip of the paddles 33, 34 and 53, 54, it is possible to prevent the bottom of the water channel 2 from being damaged. In addition, it is possible to adjust the direction in which the scraped sediment 3 goes by giving inclinations in the rotational direction to the paddles 33, 34 and 53, 54 in accordance with the properties of the sediment 3 (earth and sand) The deposit 3 can be reliably sent to the receiving port 82.

  According to the present embodiment, the water channel deposit removing apparatus 1 transfers (pumps) the deposit 3 crushed and stirred by the stirring unit 21 using the screw conveyor 71 (pumping unit). No need for heavy pipelines or large equipment as in the case of the conventional method of transporting the sediment 3 using vacuum or vacuum suction pumping. It can apply. In addition, since the screw conveyor 71 can be manufactured inexpensively, it can be introduced even by a relatively small-scale farmer who is difficult to invest in equipment.

  According to the present embodiment, the screw conveyor 71 (landing unit) includes a pair of screws 72, 73 arranged in parallel so that the blades 72A, 73A overlap in the axial direction, and the pair of screws 72, 73 are Since the winding directions of the blades 72A and 73A are opposite to each other, and the sediment 3 (sediment) is transferred (landing) by rotating inwardly, the sediment 3 between the blades 72A and 73A can be crushed. It is possible to prevent blocking between the blades 72A and 73A (between the leads) in each of the screws 72 and 73. In addition, since the screw conveyor 71 uses an inverter motor as the conveyor drive motor 76, the pair of screws 72 and 73 are rotated in the direction opposite to the rotation direction during unloading, thereby clogging the earth and sand in the case 74. Can be eliminated.

  According to the present embodiment, the screw conveyor 71 includes the case 74 that accommodates the pair of screws 72 and 73, and the case 74 is formed in the shape of a Venn diagram, so the case 74 and the outer peripheral edge portions of the blades 72A and 73A Can be made constant over the entire length of the screws 72 and 73, and the sliding of the deposit 3 from the clearance can be prevented. Thereby, it is possible to transfer the sediment 3 efficiently, and the soil removal capacity of the said screw conveyor 71 can be improved. Further, since the projections 78 and 79 extending from the inner peripheral side to the outer peripheral side are provided on the upper surfaces of the blades 72A and 73A, it is possible to prevent the deposit 3 (earth and sand) transferred by the screws 72 and 73 from sliding down. It is possible to improve the earthing capacity of the screw conveyor 71.

  According to this embodiment, since the earth collecting part 81 which guides the deposit 3 scraped up by the stirring part 21 to the screw conveyor 71 (the earthing part) is provided, the earth 3 is removed from the screws 72 and 73. It is possible to collect at the lower end, and the earthing efficiency of the screw conveyor 71 can be improved. Further, since the bottom plate is not provided in the soil collection portion 81, floating of the stirring portion 21 and the screw conveyor 71 due to the bottom plate riding on the sediment deposited in the water channel 2 can be prevented. Moreover, since the soil collection part 81 has the slider 88 which adjusts the opening height of the receptacle 82 of the screw conveyor 71, according to the property of the deposit 3 conveyed by the screw conveyor 71, the opening height of the receptacle 82 is adjusted. By doing this, the soil removal efficiency of the screw conveyor 71 can be improved.

In addition, embodiment is not limited above, For example, it can comprise as follows.
In the present embodiment, steel plates are used for the paddles 33, 34 and 53, 54 (plates 35, 36 and 55, 56) of the impeller 23 of the stirring unit 21, but the material of the paddles 33, 34 and 53, 54 is Resin, rubber, etc. can be used. In addition, depending on the nature of the deposit 3, it is possible to attach a smooth surface material to the surfaces of the paddles 33, 34 and 53, 54.
Here, when steel materials and resin are used for the paddles 33, 34 and 53, 54, the sediment 3 in the water channel 2 can be reliably removed to a predetermined excavation depth. On the other hand, when rubber is used for the paddles 33, 34 and 53, 54, the load input to the impeller 23 and the prime mover 22 is reduced by deforming the paddles 33, 34 and 53, 54 according to the load. Can. Further, by utilizing the elastic force of rubber, the deposit 3 crushed by the paddles 33, 34 and 53, 54 can be blown off toward the receiving port 82 of the screw conveyor 71 (landing unit), and the paddle 33 , 34 and 53, 54 can be peeled off.
In the present embodiment, the paddles 33, 34 and 53, 54 are inclined backward with respect to the rotational direction (see FIG. 5), but as shown in FIG. , 34 and 53, 54 may be inclined forward with respect to the direction of rotation.
In the present embodiment, although the material of the screws 72 and 73 of the screw conveyor 71 (lifting section) is steel, an elastic body such as resin or rubber can be used.
In the present embodiment, although the material of the case 74 and the slider 88 is an acrylic resin, a vinyl chloride resin, a metal, or the like can be used in consideration of the wear resistance.
In the present embodiment, by forming the cross section of the case 74 of the screw conveyor 71 into a Venn shape, the gap between the case 74 and the outer peripheral edge of the blades 72A and 73A is constant over the entire length of the screws 72 and 73. As shown in the figure, the rear side wall 74A and the screws 72 and 73 are formed by forming the rear side wall 74A of the case 74 in a flat surface and providing the inner surface of the rear side wall 74A with a triangular prism 91 extending along the entire length of the screws 72 and 73. You may fill in the gap between

DESCRIPTION OF SYMBOLS 1 Waterway sediment removal apparatus, 2 Waterways, 3 Deposits, 11 Traveling part, 21 Stirring part, 71 Screw conveyor (Uplift part)

Claims (11)

An apparatus for removing sediment from a waterway,
A traveling section that travels at the bottom of the waterway;
A stirring section for crushing and stirring the sediment at the bottom of the waterway,
The earthing part which receives the sediment scraped up by the stirring part and sends it upwards;
Equipped with
The soil lifting section comprises a screw conveyor provided with a pair of screws arranged in parallel so that the blades overlap in the axial direction, and in the pair of screws, the winding directions of the blades are opposite to each other, and they rotate inward to each other An apparatus for removing sediment from a channel. The waterway sediment removing device according to claim 1, wherein the traveling part comprises a hand track type frame. Frame of the hand truck type, the a traveling frame traveling unit is provided, and a frame on which the stirring portion and the Agetsuchi portion is provided, and the traveling frame and the upper frame, via a universal joint The waterway sediment removing device according to claim 2, wherein the waterway sediment removing device is connected. The waterway deposit removing device according to any one of claims 1 to 3, wherein the traveling portion comprises a single traveling crawler belt and a traveling crawler belt drive unit for driving the traveling crawler belt. The waterway according to any one of claims 1 to 4, wherein the traveling portion includes an auxiliary wheel which contacts both sides across the waterway, and the auxiliary wheel is adjustable in height and wheel interval. Deposit removal device. The stirring unit includes an impeller that rotates about an axis that extends horizontally along the width direction of the water channel, and the impeller has a plurality of paddles arranged around the axis. The water channel deposit removing apparatus according to any one of claims 1 to 5. The said paddle is inclined forward or backward with respect to the rotation direction of the said impeller, The channel sediment removal apparatus of Claim 6 characterized by the above-mentioned. 8. The water channel sediment removing apparatus according to claim 6, wherein a scraper is attached to a tip of the paddle. 9. The screw conveyor according to any one of claims 1 to 8, further comprising: a case for accommodating the pair of screws, wherein a gap between the case and an outer peripheral edge of the blade is constant over the entire length of the screw. An apparatus for removing channel sediments according to claim 1. The water channel deposit removing apparatus according to any one of claims 1 to 9, wherein a protrusion extending from an inner peripheral side to an outer peripheral side of the screw is provided on an upper surface of the blade. The water channel sediment removing device according to any one of claims 1 to 10, further comprising a soil collecting portion for guiding the sediment scraped up by the stirring portion to a receiving port of the raised soil portion.