CN112627269A

CN112627269A - River channel dredging device

Info

Publication number: CN112627269A
Application number: CN202011202567.9A
Authority: CN
Inventors: 王成柱
Original assignee: Anhui Pillar Construction Project Co ltd
Current assignee: Anhui Pillar Construction Project Co ltd
Priority date: 2020-11-02
Filing date: 2020-11-02
Publication date: 2021-04-09

Abstract

The application relates to a river channel dredging device, which comprises a floating plate, a collecting mechanism and a suction mechanism, wherein the collecting mechanism and the suction mechanism are arranged on the floating plate; the two ends of the conveying pipe are respectively provided with a feeding hole and a discharging pipe, and the collecting mechanism comprises a collecting hopper and a collecting barrel which are arranged on the floating plate; the periphery of the conveying pipe is provided with an annular plate, the bottom of the annular plate is provided with an annular groove, the protection plate is slidably arranged in the annular groove, the bottom of the protection plate extends to the lower part of the conveying pipe, and the annular groove is internally provided with a resetting piece which is connected with the top of the protection plate; and a driving mechanism for driving the conveying pipe to vertically move is arranged on the floating plate. The application has the effects of reducing turbidity generated during dredging and reducing influence on the water environment.

Description

River channel dredging device

Technical Field

The application relates to the technical field of water conservancy cleaning equipment, especially, relate to a river dredging device.

Background

At present, the river is an important component of the ecological environment and plays an important role in the ecological environment and the daily life of people. However, the river flow in the river channel is slow, sludge accumulation occurs at the bottom of the river after a period of time, and if the river is not cleared for a long time, the phenomena of river channel blockage, river water rising, water quality deterioration and the like can be caused, so that the river channel needs to be cleared up regularly.

In the related art, the patent application document with the publication number of CN208586662U discloses a river channel dredging device, which comprises a ship body, a non-clogging slurry pump, an internal pipeline, a filter head, a first motor, a first connecting rod, a rotating motor, a stirring piece, a second connecting rod, a water outlet pipe, a connector, a side motor, a third connecting rod, a wheel body and a rain shelter, wherein the non-clogging slurry pump, the first motor and the side motor are fixed on the ship body, the internal pipeline and the water outlet pipe are respectively communicated with two sides of the non-clogging slurry pump, the connector is communicated with the water outlet pipe, the filter head is fixed on the stirring piece and is butted with the internal pipeline, the rotating motor is fixedly connected with the stirring piece and drives the stirring piece to rotate, the stirring piece comprises a main body and a plurality of stirring. The stirring piece cuts river bottom silt and mixs, inhales the inside pipeline through the silt material that the filter head will be winked again, with the help of powerful pump power, carries silt material piling yard through outlet pipe and joint, and the course of working such as dredging, fortune mud, unloading can once accomplish in succession, and the cleaning efficiency is high.

With respect to the related art among the above, the inventors consider that the following drawbacks exist: turbidity is easily generated during dredging, and the dredging effect is influenced.

Disclosure of Invention

In order to reduce the muddy that produces when the desilting, reduce the influence to the water environment, this application provides a river course desilting device.

The application provides a river course sediment removal device adopts following technical scheme:

a river channel dredging device comprises a floating plate, a collecting mechanism and a suction mechanism, wherein the collecting mechanism and the suction mechanism are arranged on the floating plate; the two ends of the conveying pipe are respectively provided with a feeding hole and a discharging pipe, and the collecting mechanism comprises a collecting hopper and a collecting barrel which are arranged on the floating plate; the conveyer pipe is provided with the annular slab all around, and the ring channel has been seted up to the annular slab bottom, and guard plate slidable mounting extends to conveyer pipe below in the ring channel, is provided with the piece that resets and is connected with the guard plate top in the ring channel. And a driving mechanism for driving the conveying pipe to vertically move is arranged on the floating plate.

Through adopting above-mentioned technical scheme, use the structure of the transport auger in conveyer pipe and the conveyer pipe, collect silt on the riverbed, the conveyer pipe sends into silt through the discharging pipe and collects in the mechanism, because the bottom at the conveyer pipe has increased the annular plate, the structure of ring channel and guard plate, move down in the position of conveyer pipe, when falling into the riverbed bottom, guard plate slidable mounting is in the ring channel and can slide, the part of structure below with the conveyer pipe through the guard plate is protected, when sucking, the guard plate protects the part of suction, muddy production in the water has been reduced.

Preferably, the guard plate includes the arc that the polylith spliced each other, and the arc uses the axis of conveyer pipe as the center to be circular array and arranges, and the piece that resets is including setting up the reset spring in the ring channel, and the tank bottom that the arc was kept away from to arc top and ring channel is connected respectively at the reset spring both ends, and arc one side is provided with the guide block, be provided with in the arc with guide block complex guide way, guide block slidable mounting is in the guide way.

Through adopting above-mentioned technical scheme, use the structure that the concatenation of many places arc becomes the guard plate, the arc presents the circular shape array when using and arranges, and the piece that resets uses reset spring's structure, and the arc that contacts the riverbed bottom when using can appear sliding earlier, and the higher arc in position does not slide for the bottom that each arc can laminate the riverbed better uses.

Preferably, an extrusion shell and an extrusion rod are arranged in the collecting hopper, the extrusion rod penetrates through the extrusion shell and is rotationally connected with the inner wall of the collecting hopper, and a driving piece I for driving the extrusion rod to rotate is arranged in the collecting hopper; the extrusion rod is provided with two auger blades which are respectively positioned at two sides of the extrusion shell, the extrusion shell is hollow and is connected with a feeding pipe, the feeding pipe is communicated with the interior of the extrusion shell, and the end part of the feeding pipe is positioned above the collecting cylinder; a plurality of permeable holes are arranged on the feeding pipe and the collecting hopper.

Through adopting above-mentioned technical scheme, the structure that has increased the extrusion stem and extrude the shell on the collection fill, when auger blade rotates, can extrude silt and enter into and extrude the shell, silt can be discharged through the conveying pipe that extrudees the shell after the extrusion, and the pore structure of permeating water of conveying pipe and collection fill for partial moisture on the silt is extruded through the hole of permeating water, the drying of the silt of being convenient for.

Preferably, the first driving part comprises a first driving motor arranged in the collecting hopper, and an output shaft of the first driving motor is connected with the extrusion rod and drives the extrusion rod to rotate; the top of the extrusion shell is provided with an inclined plane, and the inclined direction of the inclined plane is downwards inclined from the middle to two sides.

By adopting the technical scheme, the structure of the driving motor I is added to be used as the driving piece I, the driving motor I can drive the extrusion rod to rotate when rotating, and the auger blade on the extrusion rod realizes the extrusion of sludge, so that the sludge enters the extrusion shell; the inclined plane structure of extrusion shell has been increased, can make silt drop near the auger blade of both sides under the effect on inclined plane.

Preferably, the collecting barrel comprises an inner barrel and an outer barrel, a gap is arranged between the inner barrel and the outer barrel to form a heating groove, a feeding blade is arranged outside the inner barrel, a heating pipe is arranged inside the inner barrel, the inner barrel is rotatably connected with the outer barrel, and a driving part II for driving the inner barrel to rotate is arranged in the collecting barrel; the bottom of the collecting cylinder is provided with a discharge pipe which is communicated with the heating groove.

Through adopting above-mentioned technical scheme, the structure that has used inner tube and urceolus carries out the transportation of silt, and feeding vane in the inner tube can drive silt when rotating and advance, has fallen between inner tube and urceolus, carries out once heating through the structure of heating pipe at the in-process of carrying, has realized getting rid of partial moisture, has less the weight of silt, is convenient for transport and store.

Preferably, a collecting box is arranged on the floating plate, the end part of the discharging pipe is positioned above the collecting box, and the driving part II comprises a driving motor II arranged at the bottom of the collecting barrel.

Through adopting above-mentioned technical scheme, increased the structure of collecting box, arrange the mud of discharge in the material pipe and advance the people and deposit in collecting box, the structure that has increased driving motor two is used for driving the inner tube and rotates, plays better drying effect.

Preferably, the driving mechanism comprises a support frame arranged on the floating plate, a guide wheel arranged on the support frame, a pulley arranged at the top of the conveying pipe and a winding drum arranged on the support frame, a pull rope is wound on the winding drum, one end of the pull rope penetrates through the guide wheel and the pulley and is connected to the support frame, and a winding motor for driving the winding drum to rotate is arranged on the support frame; the support frame is provided with a positioning piece for fixing the position of the winding drum.

Through adopting above-mentioned technical scheme, the structure cooperation reel that has used support frame, leading wheel and pulley is used for carrying out the pulling of stay cord, can drive the stay cord and remove under the rotation of reel for the conveyer pipe carries out the ascending removal in vertical side, has realized the altitude mixture control to the conveyer pipe.

Preferably, the conveying pipe is externally provided with a guide strip, the floating plate is provided with a through hole for the conveying pipe to pass through, a notch for the guide strip to pass through is arranged in the through hole, and the guide strip is abutted to the inner wall of the notch.

Through adopting above-mentioned technical scheme, increased the outside gib block of conveyer pipe, realized slidable mounting and the direction to the conveyer pipe through the structure of gib block and notch.

Preferably, be provided with two risers on the support frame, the reel both ends are rotated through the pivot and are installed on the riser, pivot one end extends to the riser outside and is connected with the gear, be provided with the position sleeve on the riser, the position sleeve opening sets up towards the gear, movable mounting has the locating piece in the position sleeve, the locating piece tip extend to the position sleeve outside and with the gear block, the position sleeve tip is provided with the electro-magnet that the drive locating piece removed, the inside bar groove that is provided with of position sleeve, be provided with spacing piece on the locating piece, spacing piece slidable mounting is in the bar groove, be provided with spacing spring in the bar groove, spacing piece and the tip in bar groove are connected respectively at spacing spring both.

By adopting the technical scheme, the structure of the gear and the positioning sleeve is added, the gear can be driven to rotate together when the winding drum rotates, the positioning block is slidably arranged in the positioning sleeve, the positioning block is slidably provided with the limiting spring through the limiting piece, and the end part of the positioning block can move towards the gear under the action of the limiting spring, so that the gear and the positioning block are clamped, the gear is positioned, the rotation of the winding drum is limited, and the winding drum is positioned; after the electromagnet works, the positioning block and the gear can be separated under the action of the electromagnet, and the gear can be conveniently rotated again.

In summary, the present application includes at least one of the following beneficial technical effects:

the sludge on the river bed is collected by using the conveying pipe and the structure of the conveying auger in the conveying pipe, the conveying pipe conveys the sludge into the collecting mechanism through the discharging pipe, and because the structure of the annular plate, the annular groove and the protection plate is additionally arranged at the bottom of the conveying pipe, the protection plate is slidably arranged in the annular groove and can slide when falling to the bottom of the river bed, the part below the conveying pipe is protected by the structure of the protection plate, and the protection plate protects the sucked part during suction, so that the generation of turbidity in a water body is reduced;

the protective plate is formed by splicing a plurality of arc-shaped plates, when the protective plate is used, the arc-shaped plates can change according to the height of a river bed, and the arc-shaped plate at a place with higher terrain can move upwards, so that the protective plate can have a better turbid shielding effect;

the structure of extrusion fill and extrusion pole has been increased, and silt enters into the extrusion and fights when using, can enter into the extrusion shell under the effect of two auger blades on the extrusion pole, enters into the conveying pipeline under the extruded effect, is discharged away by the conveying pipeline, can also take away certain moisture at the extruded in-process, and convenient follow-up is dried silt.

Drawings

FIG. 1 is a schematic structural diagram of a main body of an embodiment of the application;

FIG. 2 is a schematic view of a portion of the drive mechanism of the claimed embodiment;

FIG. 3 is an enlarged schematic view of portion A of FIG. 2;

FIG. 4 is a schematic structural diagram of a protection plate in the embodiment of the application;

FIG. 5 is a schematic view of the collection mechanism in the example of the application.

Description of reference numerals: 1. a floating plate; 11. a support plate; 12. a transverse plate; 13. a guide wheel; 14. a reel; 15. a vertical plate; 16. pulling a rope; 17. a winding motor; 18. a gear; 2. a delivery pipe; 21. a guide strip; 22. a pulley; 23. a discharge pipe; 3. an annular plate; 31. an annular groove; 32. a return spring; 33. a guide groove; 4. a protection plate; 41. an arc-shaped plate; 42. a guide block; 5. a collecting hopper; 51. extruding the shell; 52. an extrusion stem; 53. a feed pipe; 54. driving a motor I; 55. water permeable holes; 6. a collection canister; 61. an outer cylinder; 62. an inner barrel; 63. a feeding blade; 64. a second driving motor; 65. a discharge pipe; 7. a collection box; 8. a positioning sleeve; 81. positioning blocks; 82. a strip-shaped groove; 83. a limiting sheet; 84. a limiting spring; 85. an electromagnet.

Detailed Description

The present application is described in further detail below with reference to figures 1-5.

The embodiment of the application discloses river course dredging device.

Referring to fig. 1, the river dredging device comprises a floating plate 1, a collecting mechanism and a suction mechanism, wherein the collecting mechanism and the suction mechanism are installed on the floating plate 1, the suction mechanism comprises a conveying pipe 2 installed on the floating plate 1, a conveying auger rotatably installed in the conveying pipe 2, and a protection plate 4 installed at the bottom of the conveying pipe 2. The vertical setting of conveyer pipe 2 and with kickboard 1 slide and link to each other, the outside shaping of conveyer pipe 2 has guide strip 21, set up the through-hole that supplies conveying pipe 2 to pass through on the kickboard 1, set up the notch that two departments supplied guide strip 21 to pass through in the through-hole, guide strip 21 offsets with the inner wall of notch, lead to the structure of conveyer pipe 2 through guide strip 21 and notch for conveyer pipe 2 can slide along the direction of perpendicular to kickboard 1. And a driving mechanism for driving the conveying pipe 2 to vertically move is arranged at the top of the floating plate 1.

Referring to fig. 1 and 2, a support frame is installed on a floating plate 1, the support frame comprises two support plates 11 and a transverse plate 12 between the tops of the support plates 11, a driving mechanism comprises a support frame, a guide wheel 13, a pulley 22 and a winding drum 14, the guide wheel 13 is installed at the bottom of the transverse plate 12, the pulley 22 is installed at the top of a conveying pipe 2, the winding drum 14 is installed at the bottom of the transverse plate 12 and is spaced from the guide wheel 13, a pull rope 16 is wound on the winding drum 14, one end of the pull rope 16 penetrates through the guide wheel 13 and the pulley 22 and is connected to the transverse plate 12, the pull rope 16 can be driven to be tensioned when the winding drum 14 rotates, and. Two vertical plates 15 which are parallel are arranged at the bottom of the transverse plate 12, two ends of the winding drum 14 are rotatably arranged on the vertical plates 15 through rotating shafts, and a winding motor 17 for driving the rotating shafts to rotate is arranged at the bottom of the transverse plate 12.

Referring to fig. 2 and 3, one end of the rotating shaft extends to the outside of the vertical plate 15 and is connected with a gear 18, and the axes of the gear 18 and the rotating shaft are coincident. Install vertical position sleeve 8 on riser 15, movable mounting has locating piece 81 in the position sleeve 8, and the opening of position sleeve 8 sets up down, and locating piece 81 slides along vertical direction inside the position sleeve 8, and the bottom of locating piece 81 extends to the below of position sleeve 8 and with gear 18 block, has realized spacing to gear 18, has fixed reel 14's position. The locating sleeve 8 is made of aluminum alloy, the locating block 81 is made of iron, the electromagnet 85 is installed at the top of the inner side of the locating sleeve 8, the locating block 81 can move upwards when the electromagnet 85 works, and the gear 18 and the winding drum 14 can normally rotate. Seted up bar groove 82 in 8 inboards of position sleeve, the length direction of bar groove 82 is the same with the length direction of position sleeve 8, and the shaping is gone up to locating piece 81 has spacing piece 83, and spacing piece 83 slidable mounting slides in bar groove 82 and along the length direction of bar groove 82, installs spacing spring 84 in bar groove 82, and spacing piece 83 and the tip in bar groove 82 are connected respectively to spacing spring 84's both ends. After the electromagnet 85 is powered off, the limiting piece 83 is driven to move downwards by the limiting spring 84, so as to drive the positioning block 81 to move, and the gear 18 is positioned.

Referring to fig. 1, conveyer pipe 2 is inside changes to install and carries the auger, and install the auger motor at conveyer pipe 2's top, drive through the auger motor and carry the auger and rotate, the conveying of silt in conveyer pipe 2 has been realized, the feed inlet has been seted up to the bottom at conveyer pipe 2, conveyer pipe 2's top is connected with discharging pipe 23, discharging pipe 23 is linked together with conveyer pipe 2's inside, the effect that the material discharged has been realized.

Referring to fig. 4, conveyer pipe 2 is fixed mounting all around has annular plate 3, and annular groove 31 has been seted up to annular plate 3 bottom, and the axis coincidence of annular plate 3 and conveyer pipe 2, protection plate 4 slidable mounting are in annular groove 31, and protection plate 4 bottom extends to conveyer pipe 2 below, installs in the annular groove 31 and resets and reset the piece and be connected with protection plate 4 top. Protection plate 4 includes the arc 41 that the polylith spliced each other, arc 41 uses the axis of conveyer pipe 2 to be circular array and arranges as the center, reset element adopts reset spring 32, reset spring 32 is installed in ring channel 31, and reset spring 32 is located the top of arc 41, reset spring 32 and arc 41's the same and position one-to-one, the tank bottom that arc 41 was kept away from to arc 41 top and ring channel 31 is connected respectively at reset spring 32 both ends, 41 one side shaping of arc has guide block 42, set up in the arc along vertical direction with guide block 42 complex guide way 33, guide block 42 slidable mounting is in guide way 33, the direction and the spacing effect to arc 41 have been played, make arc 41 can not excessively slide.

Referring to fig. 1, the collecting mechanism includes a collecting funnel 5 and a collecting barrel 6 installed on a floating plate 1, and a discharging pipe 23 discharges collected sludge into the collecting funnel 5, thereby achieving preliminary collection.

Referring to fig. 5, the collecting bucket 5 is constructed such that a hollow pressing housing 51 is fixedly installed in the collecting bucket 5, and a horizontal pressing rod 52 is rotatably installed, the pressing rod 52 penetrates the pressing housing 51, and the end of the pressing rod 52 is rotatably connected to the collecting bucket 5, and the rotation center of the pressing rod 52 is limited to its own axis. The outside fixed mounting of extrusion pole 52 has two auger blades, two auger blades are located the both sides of extrusion shell 51 respectively, extrusion shell 51 is connected with conveying pipe 53, conveying pipe 53 and the inside intercommunication of extrusion shell 51, install on the collection fill 5 and be used for driving extrusion pole 52 pivoted driving piece one, driving piece one adopts driving motor 54, the output shaft of driving motor 54 and extrusion pole 52 are connected and drive extrusion pole 52 and rotate, at the pivoted in-process, send into among the hollow extrusion shell 51 with the silt of auger blade department, resume the extrusion can make the silt in the extrusion shell 51 get into the conveying pipe 53 and be arranged away. An inclined plane is formed at the top of the extrusion shell 51, the inclined direction of the inclined plane is inclined downwards from the middle to two sides, and when sludge falls down, the sludge can conveniently fall to the position near the auger blade through the inclined plane structure to collect the sludge. All seted up many places hole 55 of permeating water at conveying pipe 53 and collection hopper 5 bottom, can be at the extruded in-process with partial moisture discharge through the structure of hole 55 of permeating water.

Referring to fig. 5, the collecting cylinder 6 includes an inner cylinder 62 and an outer cylinder 61, a gap is left between the inner cylinder 62 and the outer cylinder 61 to form a heating tank, a plurality of feeding blades 63 are fixedly installed outside the inner cylinder 62, a heating pipe is installed inside the inner cylinder 62, the inner cylinder 62 is heated by the heating pipe, and sludge is conveyed and heated when the inner cylinder 62 and the feeding blades 63 rotate, so that the sludge is dried in the advancing process. And a second driving part is arranged in the collecting barrel 6, the second driving part comprises a second driving motor 64 arranged at the bottom of the outer barrel 61, and the second driving motor 64 drives the inner barrel 62 to rotate. The collecting box 7 is installed on the floating plate 1, the horizontal discharging pipe 65 is installed at the bottom of the collecting cylinder 6, the discharging pipe 65 is communicated with the heating groove, the end part of the discharging pipe 65 is positioned above the collecting box 7, and after sludge is transmitted, materials are conveyed away through the discharging mechanism and are transported into the collecting box 7.

The implementation principle of the river channel dredging device in the embodiment of the application is as follows: use the structure of the transport auger in conveyer pipe 2 and the conveyer pipe 2, collect silt on the riverbed, conveyer pipe 2 sends into silt to the collection mechanism through discharging pipe 23, because annular plate 3 has been increased in the bottom of conveyer pipe 2, the structure of ring channel 31 and guard plate 4, move down in the position of conveyer pipe 2, when falling into the riverbed bottom, guard plate 4 slidable mounting is in ring channel 31 and can slide, the part of conveyer pipe 2 below is protected through the structure of guard plate 4, when sucking, guard plate 4 protects the part of suction, the muddy production in the water has been reduced. Set up protection plate 4 into the mutual structure of splicing of many places arc 41, arc 41 slides according to the height of riverbed bottom when using for protection plate 4 can cooperate the riverbed bottom better and protect, the muddy that produces when reducing the desilting.

The above embodiments are preferred embodiments of the present application, and the protection scope of the present application is not limited by the above embodiments, so: all equivalent changes made according to the structure, shape and principle of the present application shall be covered by the protection scope of the present application.

Claims

1. The utility model provides a river course sediment removal device, includes kickboard (1), sets up collection mechanism and suction mechanism on kickboard (1), its characterized in that: the suction mechanism comprises a conveying pipe (2) arranged on the floating plate (1), a conveying auger rotatably arranged in the conveying pipe (2) and a protection plate (4) arranged at the bottom of the conveying pipe (2); a feed inlet and a discharge pipe (23) are respectively arranged at two ends of the conveying pipe (2), and the collecting mechanism comprises a collecting hopper (5) and a collecting barrel (6) which are arranged on the floating plate (1); the periphery of the conveying pipe (2) is provided with annular plates (3), the bottom of each annular plate (3) is provided with an annular groove (31), the protection plate (4) is slidably mounted in the annular groove (31), the bottom of the protection plate (4) extends to the lower part of the conveying pipe (2), the annular groove (31) is internally provided with a resetting piece, and the resetting piece is connected with the top of the protection plate (4); the floating plate (1) is provided with a driving mechanism for driving the conveying pipe (2) to vertically move.

2. The river channel dredging device according to claim 1, wherein: protection plate (4) include arc (41) that the polylith spliced each other, arc (41) use the axis of conveyer pipe (2) to be circular array and arrange as the center, reset including reset spring (32) of setting in ring channel (31), the tank bottom that arc (41) were kept away from to reset spring (32) both ends connection arc (41) top and ring channel (31) respectively, arc (41) one side is provided with guide block (42), be provided with in the arc with guide block (42) complex guide way (33), guide block (42) slidable mounting is in guide way (33).

3. The river channel dredging device according to claim 1, wherein: an extrusion shell (51) and an extrusion rod (52) are arranged in the collecting hopper (5), the extrusion rod (52) penetrates through the extrusion shell (51) and is rotationally connected with the inner wall of the collecting hopper (5), and a first driving piece for driving the extrusion rod (52) to rotate is arranged in the collecting hopper (5); two auger blades are arranged on the extrusion rod (52), the two auger blades are respectively positioned on two sides of the extrusion shell (51), the extrusion shell (51) is arranged in a hollow manner and is connected with a feeding pipe (53), the feeding pipe (53) is communicated with the interior of the extrusion shell (51), and the end part of the feeding pipe (53) is positioned above the collecting cylinder (6); a plurality of permeable holes (55) are arranged on the feeding pipe (53) and the collecting hopper (5).

4. A river channel dredging device according to claim 3, wherein: the first driving part comprises a first driving motor (54) arranged in the collecting hopper (5), and an output shaft of the first driving motor (54) is connected with the extrusion rod (52) and drives the extrusion rod (52) to rotate; the top of the extrusion shell (51) is provided with an inclined plane, and the inclined direction of the inclined plane is downwards inclined from the middle to two sides.

5. A river channel dredging device according to claim 3, wherein: the collecting cylinder (6) comprises an inner cylinder (62) and an outer cylinder (61), a gap is arranged between the inner cylinder (62) and the outer cylinder (61) to form a heating groove, a feeding blade (63) is arranged outside the inner cylinder (62), a heating pipe is arranged inside the inner cylinder (62), the inner cylinder (62) is rotatably connected with the outer cylinder (61), and a driving part II for driving the inner cylinder (62) to rotate is arranged in the collecting cylinder (6); the bottom of the collecting cylinder (6) is provided with a discharge pipe (65), and the discharge pipe (65) is communicated with the heating groove.

6. The river channel dredging device according to claim 5, wherein: the floating plate (1) is provided with a collecting box (7), the end part of the discharging pipe (65) is positioned above the collecting box (7), and the driving part II comprises a driving motor II (64) arranged at the bottom of the collecting cylinder (6).

7. The river channel dredging device according to claim 1, wherein: the driving mechanism comprises a support frame arranged on the floating plate (1), a guide wheel (13) arranged on the support frame, a pulley (22) arranged at the top of the conveying pipe (2) and a winding drum (14) arranged on the support frame, a pull rope (16) is wound on the winding drum (14), one end of the pull rope (16) penetrates through the guide wheel (13) and the pulley (22) and is connected onto the support frame, and a winding motor (17) for driving the winding drum (14) to rotate is arranged on the support frame.

8. The river channel dredging device according to claim 7, wherein: the outside of conveying pipe (2) is provided with guide strip (21), sets up the through-hole that supplies conveying pipe (2) to pass through on kickboard (1), is provided with the notch that supplies guide strip (21) to pass through in the through-hole, and guide strip (21) offset with the inner wall of notch.

9. The river channel dredging device according to claim 7, wherein: two vertical plates (15) are arranged on the supporting frame, two ends of the winding drum (14) are rotatably arranged on the vertical plates (15) through a rotating shaft, one end of the rotating shaft extends to the outside of the vertical plates (15) and is connected with a gear (18), a positioning sleeve (8) is arranged on the vertical plates (15), the opening of the positioning sleeve (8) faces the gear (18), a positioning block (81) is movably arranged in the positioning sleeve (8), the end part of the positioning block (81) extends to the outside of the positioning sleeve (8) and is clamped with the gear (18), an electromagnet (85) for driving the positioning block (81) to move is arranged at the end part of the positioning sleeve (8), a strip-shaped groove (82) is arranged in the positioning sleeve (8), a limiting piece (83) is arranged on the positioning block (81), the limiting piece (83) is slidably arranged in the strip-shaped groove (82), a limiting spring (84) is arranged in the strip-shaped groove (82), and two ends of the limiting spring (84) are respectively connected with the limiting piece (83) and the end part of the strip-shaped groove (82).