CN113389236A - River and lake dredging machine and dredging method thereof - Google Patents
River and lake dredging machine and dredging method thereof Download PDFInfo
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- CN113389236A CN113389236A CN202110567173.1A CN202110567173A CN113389236A CN 113389236 A CN113389236 A CN 113389236A CN 202110567173 A CN202110567173 A CN 202110567173A CN 113389236 A CN113389236 A CN 113389236A
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- 238000000034 method Methods 0.000 title claims abstract description 20
- 239000010802 sludge Substances 0.000 claims abstract description 125
- 238000010276 construction Methods 0.000 claims abstract description 26
- 239000000463 material Substances 0.000 claims description 18
- XLYOFNOQVPJJNP-UHFFFAOYSA-N water Substances O XLYOFNOQVPJJNP-UHFFFAOYSA-N 0.000 claims description 16
- 230000033001 locomotion Effects 0.000 claims description 12
- 229910000831 Steel Inorganic materials 0.000 claims description 4
- 239000010959 steel Substances 0.000 claims description 4
- 239000002689 soil Substances 0.000 description 10
- 239000002002 slurry Substances 0.000 description 7
- 239000003795 chemical substances by application Substances 0.000 description 4
- 238000013461 design Methods 0.000 description 3
- 230000018044 dehydration Effects 0.000 description 2
- 238000006297 dehydration reaction Methods 0.000 description 2
- 238000005188 flotation Methods 0.000 description 2
- 238000011010 flushing procedure Methods 0.000 description 2
- 230000005484 gravity Effects 0.000 description 2
- 238000005086 pumping Methods 0.000 description 2
- 238000009825 accumulation Methods 0.000 description 1
- 238000009412 basement excavation Methods 0.000 description 1
- 230000009286 beneficial effect Effects 0.000 description 1
- 230000005540 biological transmission Effects 0.000 description 1
- 230000000903 blocking effect Effects 0.000 description 1
- 238000009435 building construction Methods 0.000 description 1
- 239000003153 chemical reaction reagent Substances 0.000 description 1
- 238000007796 conventional method Methods 0.000 description 1
- 238000010586 diagram Methods 0.000 description 1
- 238000007599 discharging Methods 0.000 description 1
- 238000006073 displacement reaction Methods 0.000 description 1
- 238000005516 engineering process Methods 0.000 description 1
- 239000003344 environmental pollutant Substances 0.000 description 1
- 238000002474 experimental method Methods 0.000 description 1
- 238000009533 lab test Methods 0.000 description 1
- 230000004048 modification Effects 0.000 description 1
- 238000012986 modification Methods 0.000 description 1
- 239000004033 plastic Substances 0.000 description 1
- 231100000719 pollutant Toxicity 0.000 description 1
- 238000001556 precipitation Methods 0.000 description 1
- 238000004064 recycling Methods 0.000 description 1
- 238000007711 solidification Methods 0.000 description 1
- 230000008023 solidification Effects 0.000 description 1
- 238000012360 testing method Methods 0.000 description 1
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Classifications
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- E—FIXED CONSTRUCTIONS
- E02—HYDRAULIC ENGINEERING; FOUNDATIONS; SOIL SHIFTING
- E02F—DREDGING; SOIL-SHIFTING
- E02F5/00—Dredgers or soil-shifting machines for special purposes
- E02F5/28—Dredgers or soil-shifting machines for special purposes for cleaning watercourses or other ways
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- E—FIXED CONSTRUCTIONS
- E02—HYDRAULIC ENGINEERING; FOUNDATIONS; SOIL SHIFTING
- E02F—DREDGING; SOIL-SHIFTING
- E02F3/00—Dredgers; Soil-shifting machines
- E02F3/04—Dredgers; Soil-shifting machines mechanically-driven
- E02F3/88—Dredgers; Soil-shifting machines mechanically-driven with arrangements acting by a sucking or forcing effect, e.g. suction dredgers
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- E—FIXED CONSTRUCTIONS
- E02—HYDRAULIC ENGINEERING; FOUNDATIONS; SOIL SHIFTING
- E02F—DREDGING; SOIL-SHIFTING
- E02F3/00—Dredgers; Soil-shifting machines
- E02F3/04—Dredgers; Soil-shifting machines mechanically-driven
- E02F3/88—Dredgers; Soil-shifting machines mechanically-driven with arrangements acting by a sucking or forcing effect, e.g. suction dredgers
- E02F3/90—Component parts, e.g. arrangement or adaptation of pumps
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- E—FIXED CONSTRUCTIONS
- E02—HYDRAULIC ENGINEERING; FOUNDATIONS; SOIL SHIFTING
- E02F—DREDGING; SOIL-SHIFTING
- E02F7/00—Equipment for conveying or separating excavated material
- E02F7/02—Conveying equipment mounted on a dredger
Abstract
The invention discloses a river and lake dredging machine, comprising: a frame; the traveling mechanism drives the pair of buoys to synchronously rotate to move on the surface of the sludge; the mud collecting mechanism is of a T-shaped structure and is positioned at the front upper part of the rack, the mud collecting mechanism is provided with a spiral conveyor in the transverse direction and a scraper conveyor in the vertical direction; the conveying mechanism is arranged on the rack and comprises a mud conveying pump and a mud conveying pipeline, the highest point of the scraper conveyor is located right above a mud conveying pump feeding port, one end of the mud conveying pipeline is connected with the mud conveying pump, and the other end of the mud conveying pipeline is connected to a mud storage yard. The invention also discloses a dredging method of the river and lake dredging machine. The invention can realize the rapid removal of river and lake silt, has simple and convenient construction and high efficiency, can greatly shorten the construction period and save the construction cost.
Description
Technical Field
The invention relates to the technical field of ecological environment. More particularly, the invention relates to a river and lake dredging machine and a dredging method thereof.
Background
In recent years, China continuously strengthens ecological civilization construction, and particularly, water environment treatment engineering aiming at eliminating black and odorous water bodies is continuously constructed since ten water items are released. Endogenous pollution is a main source of pollutants in rivers and lakes, and dredging is an effective technical means for eliminating the endogenous pollution in the rivers and lakes. At present, river and lake dredging technologies can be divided into water-carrying dredging and dry pond dredging. The dredging operation boat with water is high in construction efficiency, various dredging operation boats are rich in types, the dredging operation boat with water comprises a cutter suction boat, a trailing suction boat, a grab bucket boat and the like, but the water content of the dredging mud with water is high, the subsequent sludge dewatering cost is high, and the period is long. The dry pond dredging is mainly aimed at river channels and lakes where water depth is shallow and dredging ships cannot enter and are constructed, and because of low sludge bearing capacity, ordinary machinery such as a digging machine cannot enter the operation, the most used dry pond dredging is manual hydraulic flushing at present, and constructors utilize a high-pressure water gun to flush deposited sludge into slurry and then pump the slurry into a sludge pond by a slurry pump. The manual hydraulic excavation has low working efficiency and poor construction environment and also faces the problem of subsequent slurry dehydration.
Disclosure of Invention
The invention aims to provide a river and lake dredging machine and a dredging method thereof, which overcome the problems that the water content of water-carrying dredging slurry is high, the subsequent sludge dewatering cost is high, the period is long, or the dry pond dredging sludge bearing capacity is extremely low, common machines such as excavators cannot enter into operation, the manual hydraulic flushing and excavating work efficiency is low, the construction environment is poor, and the subsequent slurry dewatering is also faced, can realize the quick removal of the river and lake sludge, is simple and convenient to construct, has high efficiency, can greatly shorten the construction period, and saves the construction cost.
To achieve these objects and other advantages in accordance with the present invention, there is provided a river and lake dredging machine comprising:
a frame;
the travelling mechanism comprises a pair of closed hollow buoys, the pair of buoys are symmetrically positioned on two sides below the rack, continuous helical blades are distributed on the peripheries of the buoys, the end parts of the pair of buoys are connected through a driving shaft, and the driving shaft is driven to rotate through a power assembly arranged on the rack so as to drive the pair of buoys to synchronously rotate and realize the movement on the surface of sludge;
the sludge collecting mechanism is of a T-shaped structure and is positioned in the front upper part of the rack, two groups of screw conveyors which move in opposite directions are arranged in the transverse direction of the sludge collecting mechanism, a scraper conveyor is arranged in the vertical direction of the sludge collecting mechanism, the screw conveyors and the scraper conveyor are communicated and arranged, the sludge collecting mechanism is supported in the vertical direction through a hinge mechanism and a telescopic mechanism, the lower ends of the hinge mechanism and the telescopic mechanism are fixed on the rack, the upper ends of the hinge mechanism and the telescopic mechanism are hinged with the vertical direction of the sludge collecting mechanism, and the telescopic mechanism is telescopic;
the conveying mechanism is arranged on the rack and comprises a mud conveying pump and a mud conveying pipeline, the highest point of the scraper conveyor is located right above a mud conveying pump feeding port, one end of the mud conveying pipeline is connected with the mud conveying pump, and the other end of the mud conveying pipeline is connected to a mud storage yard.
Preferably, the drive shaft of the buoy is connected with the frame through a hydraulic bearing, and the power assembly drives the hydraulic bearing to rotate.
Preferably, the hinge mechanism is a triangular steel frame, one top end of the hinge mechanism is hinged to the mud collecting mechanism, and the telescopic mechanism is a hydraulic telescopic rod.
Preferably, a mud receiving hopper and a grating are communicated with a feed inlet of the mud conveying pump, the highest point of the scraper conveyor is positioned right above the mud receiving hopper, and the grating is horizontally arranged in the mud receiving hopper.
Preferably, the mud conveying pipeline comprises a plurality of mud conveying pipes which are sequentially connected through flanges.
Preferably, the mud conveying pipe is made of high-strength rubber materials.
Preferably, the mud pump further comprises a hydraulic system, the hydraulic system is arranged on the rack, and the hydraulic system is respectively connected with the telescopic mechanism and the mud pump so as to provide driving power for the operation of the telescopic mechanism and the mud pump.
The invention also provides a dredging method of the river and lake dredging machine, which comprises the following steps:
the method comprises the following steps: before dredging, water in an area to be dredged is pumped to be dry, so that sludge is exposed;
step two: installing a conveying pipeline according to the farthest conveying distance, and sequentially starting a spiral conveyor and a scraper conveyor; then according to the dredging depth, the telescopic mechanism is driven to act, the screw conveyor is driven to descend to the dredging depth, and the telescopic mechanism is closed; under the action of the two groups of screw conveyors, the sludge is gathered from two ends to the middle and enters a trough of the scraper conveyor, and the sludge in the trough is continuously conveyed into a feeding port of a sludge conveying pump;
step three: the sludge pump conveys the conveyed sludge to a preset sludge storage yard through a sludge conveying pipeline, and the sludge is circulated in a reciprocating manner to finish the desilting work of the area;
step four: and starting the power assembly, driving the travelling mechanism to travel to the next construction area, closing the power assembly, closing the travelling mechanism, and repeating the second step and the third step until the dredging is finished.
Preferably, a material level detector is arranged at a material inlet of the mud conveying pump, the mud conveying pump is provided with two cylinder bodies, namely a cylinder A and a cylinder B, and the concrete method for conveying the mud by the mud conveying pump is as follows: in the initial state, an inlet of a cylinder A is opened, an inlet of a cylinder B is closed, sludge enters the cylinder A first, when a material level detector monitors that the sludge amount reaches a material level limit value, a reversing valve of a sludge conveying pump deflects to the cylinder A, the inlet of the cylinder A is closed at the moment, the inlet of the cylinder B is opened, the sludge enters the cylinder B of the sludge conveying pump, after the sludge is filled, the reversing valve turns to the cylinder B, the inlet of the cylinder B is closed at the moment, the inlet of the cylinder A is opened, and when the cylinder A advances the sludge, the sludge in the cylinder B is pushed into a sludge conveying pipeline and conveyed to a preset sludge storage yard.
Preferably, in the fourth step, the distance traveled by the traveling mechanism each time is a horizontal limit distance of dredging movement of the sludge collecting mechanism, the sludge collecting mechanism determines a vertical limit height of movement of the sludge collecting mechanism according to the telescopic distance of the telescopic mechanism, if the dredging depth exceeds the vertical limit height, layered construction is required, and construction of the next layer is performed after dredging of the upper layer is completed until the dredging work of the target depth is completed.
The invention at least comprises the following beneficial effects:
1. the invention provides a river and lake dredging machine, which can automatically walk on the surface of sludge under the condition of dry pond, has high dredging concentration, directly conveys the sludge to a storage yard through a high-pressure sludge conveying pump and a sludge conveying pipeline, achieves the performance index requirement of the building soil after solidification treatment, has simple and convenient construction and high efficiency, avoids the step of mechanical dehydration in the prior dredging method due to high slurry water content, can obviously shorten the construction period, saves the cost, and synchronously realizes the resource utilization of the sludge.
2. The invention provides an efficient dredging method, which comprises the steps of building a cofferdam in a region to be dredged, dredging rivers and lakes by using a dredging machine after water is drained, collecting sludge from two ends of the spiral conveyor to the middle of the machine, feeding the sludge into a trough of a scraper conveyor, conveying the sludge to a high-pressure industrial sludge pump by the scraper conveyor, discharging the sludge to a sludge storage yard through a sludge conveying pipeline, throwing a designed amount of curing agent on the surface of the sludge in the sludge storage yard, mixing the sludge by a excavator, uniformly mixing the sludge, accumulating and maintaining, conveying the cured soil to a building construction site by a soil vehicle after the cured soil reaches the index of the building soil, and recycling the soil. The dredging construction period can be greatly shortened, the occupied area for construction is reduced, and the construction cost is reduced.
Additional advantages, objects, and features of the invention will be set forth in part in the description which follows and in part will become apparent to those having ordinary skill in the art upon examination of the following or may be learned from practice of the invention.
Drawings
FIG. 1 is a front view of the silt remover of the present invention;
FIG. 2 is a top view of the silt remover of the present invention;
FIG. 3 is a mechanism movement limiting diagram of the silt remover of the present invention;
FIG. 4 is a flow chart of the dredging method of the present invention.
Description of reference numerals:
1. the device comprises a frame, 2, a buoy, 3, a helical blade, 4, a screw conveyer, 5, a scraper conveyer, 6, a mud conveying pump, 7, a mud conveying pipeline, 8, a triangular steel frame, 9, a hydraulic telescopic rod and 10, and a mud receiving hopper.
Detailed Description
The present invention is further described in detail below with reference to the attached drawings so that those skilled in the art can implement the invention by referring to the description text.
It is to be noted that the experimental methods described in the following embodiments are all conventional methods unless otherwise specified, and the reagents and materials, if not otherwise specified, are commercially available; in the description of the present invention, the terms "lateral", "longitudinal", "up", "down", "front", "back", "left", "right", "vertical", "horizontal", "top", "bottom", "inner", "outer", etc., indicate orientations or positional relationships based on the orientations or positional relationships shown in the drawings, are only for convenience in describing the present invention and simplifying the description, and do not indicate or imply that the device or element being referred to must have a particular orientation, be constructed and operated in a particular orientation, and thus, should not be construed as limiting the present invention.
As shown in fig. 1 to 3, the present invention provides a river and lake dredging machine, comprising:
a frame 1;
the travelling mechanism comprises a pair of closed hollow buoys 2, the pair of buoys 2 are symmetrically positioned on two sides below the rack 1, continuous helical blades 3 are distributed on the peripheries of the buoys 2, the end parts of the pair of buoys 2 are connected through a driving shaft, and the driving shaft is driven to rotate through a power assembly arranged on the rack 1 so as to drive the pair of buoys 2 to synchronously rotate and move on the surface of sludge;
the mud collecting mechanism is of a T-shaped structure and is positioned in the front upper part of the rack 1, two groups of screw conveyors 4 moving in opposite directions are arranged in the horizontal direction of the mud collecting mechanism, a scraper conveyor 5 is arranged in the vertical direction of the mud collecting mechanism, the screw conveyors 4 and the scraper conveyor 5 are communicated and arranged, the vertical direction of the mud collecting mechanism is supported by a hinge mechanism and a telescopic mechanism, the lower ends of the hinge mechanism and the telescopic mechanism are fixed on the rack 1, the upper ends of the hinge mechanism and the telescopic mechanism are hinged with the vertical direction of the mud collecting mechanism, and the telescopic mechanism is telescopic;
the conveying mechanism is arranged on the rack 1 and comprises a mud conveying pump 6 and a mud conveying pipeline 7, the highest point of the scraper conveyor 5 is located right above a feeding port of the mud conveying pump 6, one end of the mud conveying pipeline 7 is connected with the mud conveying pump 6, and the other end of the mud conveying pipeline 7 is connected to a mud storage yard
In the technical scheme, the travelling mechanism is arranged below the frame 1, the structure is in two closed cylindrical structures which are symmetrically arranged and is hollow, and continuous helical blades 3 are distributed along the extension, as shown in fig. 2, the directions of the helical blades 3 are opposite, the helical blades are driven to move in different directions by virtue of driving shafts at two ends, and the helical blades can move forwards on the surface of sludge under the resistance action of a sludge layer; the drive shaft of the two ends of the float 2 is connected with the frame 1 through a hydraulic bearing, the power assembly drives the hydraulic bearing to rotate, the cylinder of the walking mechanism synchronously rotates, and the spiral blade 3 and the sludge move forwards by virtue of the binding force generated by the sludge. The power assembly is arranged above the rack 1 and mainly provides power output for the walking of the machine tool, and the power assembly can be a motor.
The mud collecting mechanism is arranged above the front of the frame 1, is T-shaped as a whole, is provided with two groups of spiral conveyors 4 which rotate in opposite directions transversely, is disconnected in the middle of the spiral conveyors in opposite directions, collects mud from two sides to the middle, and is provided with a scraper conveyor 5 longitudinally. Whole collection mud mechanism relies on articulated mechanism and the telescopic machanism that is located frame 1 to support, and in telescopic machanism extension and shrink action, collection mud mechanism can support round articulated mechanism and rotate to adjust the height of collection mud mechanism, dig the silt of getting the different degree of depth.
The conveying mechanism is arranged above the frame 1 and mainly comprises a high-pressure industrial mud conveying pump 6 and a high-strength mud conveying pipeline 7. The conveying mechanism is fixed on the frame 1 and is connected with the frame by bolts and cannot move. Sludge dug by the sludge collecting mechanism freely falls to a feeding port of a sludge conveying pump 6 through gravity at the highest point of a scraper conveyor 5. The mud conveying pipeline 7 is connected with the mud conveying pump 6 through a flange, and the mud conveying pipeline 7 is fixed on the rack 1 through a U-shaped spiral. The sludge pump 6 conveys sludge to a sludge storage yard through a sludge conveying pipeline 7.
In another technical scheme, the driving shafts of the buoys 2 are connected with the frame 1 through hydraulic bearings, and the power assembly drives the hydraulic bearings to rotate.
In another technical scheme, the hinge mechanism is a triangular steel frame 8, one top end of the hinge mechanism is hinged to the mud collecting mechanism, and the telescopic mechanism is a hydraulic telescopic rod 9.
In above-mentioned technical scheme, collection mud mechanism articulates on frame 1 through triangle steelframe 8, and triangle steelframe 8 is fixed in frame 1 and is born the most gravity of collection mud mechanism, links to each other with frame 1 through hydraulic telescoping rod 9 simultaneously, and under hydraulic telescoping rod 9's extension and shrink transmission, collection mud mechanism can be rotatory round triangle steelframe 8 to promote and descend screw conveyer 4, dig the silt of getting the different degree of depth.
In another technical scheme, a mud receiving hopper 10 and a grating are communicated with a feed inlet of the mud conveying pump 6, the highest point of the scraper conveyor 5 is positioned right above the mud receiving hopper 10, and the grating is horizontally arranged in the mud receiving hopper 10. A mud receiving hopper 10 and a grid are additionally arranged at a feeding port of the mud conveying pump 6 to prevent large sundries from blocking the mud conveying pump 6.
In another technical scheme, the mud conveying pipeline 7 comprises a plurality of mud conveying pipes which are sequentially connected through flanges, and the mud conveying pipes are made of high-strength rubber materials. The mud conveying pipe is made of high-strength rubber materials, bears higher conveying pressure when lightening the balance weight, is provided with a section for 6 meters, and is connected with the section through flanges so as to meet the requirement that the mud conveying pipe is connected to a sludge storage yard according to the actual construction distance.
In another technical scheme, the sludge treatment machine further comprises a hydraulic system, wherein the hydraulic system is arranged on the rack 1 and is respectively connected with the telescopic mechanism and the sludge conveying pump 6 so as to provide driving power for the operation of the telescopic mechanism and the sludge conveying pump 6. The hydraulic system provides hydraulic driving power for the movement of the high-pressure industrial mud conveying pump 6 and the movement of a telescopic mechanism of the mud collecting mechanism, namely the movement of the hydraulic telescopic rod 9.
As shown in fig. 4, the invention also provides a dredging method of the river and lake dredging machine, which comprises the following steps:
the method comprises the following steps: selecting a river and lake dredging construction in winter and spring with less precipitation, and before dredging, pumping water in an area to be dredged to expose sludge;
the method specifically comprises the following steps: building a cofferdam according to the length or the area of the area to be desilted, and pumping accumulated water in the cofferdam by using a centrifugal pump to expose sludge;
step two: installing a conveying pipeline according to the farthest conveying distance, and sequentially starting a spiral conveyor and a scraper conveyor; then according to the dredging depth, the telescopic mechanism is driven to act, the screw conveyor is driven to descend to the dredging depth, and the telescopic mechanism is closed; under the action of the two groups of screw conveyors, the sludge is gathered from two ends to the middle and enters a trough of the scraper conveyor, the scraper conveyor is driven by a chain, and the sludge in the trough is continuously conveyed into a feeding port of a sludge conveying pump;
step three: the sludge pump conveys the conveyed sludge to a preset sludge storage yard through a sludge conveying pipeline, and the sludge is circulated in a reciprocating manner to finish the desilting work of the area;
step four: and starting the power assembly, driving the travelling mechanism to travel to the next construction area, closing the power assembly, closing the travelling mechanism, and repeating the second step and the third step until the dredging is finished.
In another technical scheme, a material level detector is arranged at a material inlet of the mud conveying pump, the mud conveying pump is provided with two cylinder bodies, namely a cylinder A and a cylinder B, and the concrete method for conveying the mud by the mud conveying pump is as follows: in the initial state, an inlet of a cylinder A is opened, an inlet of a cylinder B is closed, sludge enters the cylinder A first, when a material level detector monitors that the sludge amount reaches a material level limit value, a reversing valve of a sludge conveying pump deflects to the cylinder A, the inlet of the cylinder A is closed at the moment, the inlet of the cylinder B is opened, the sludge enters the cylinder B of the sludge conveying pump, after the sludge is filled, the reversing valve turns to the cylinder B, the inlet of the cylinder B is closed at the moment, the inlet of the cylinder A is opened, and when the cylinder A advances the sludge, the sludge in the cylinder B is pushed into a sludge conveying pipeline and conveyed to a preset sludge storage yard.
In another kind of technical scheme, the running gear of silt remover starts, the flotation pontoon of taking the spiral begin the rotation dorsad, rely on the frictional resistance between flotation pontoon and the silt to remove forward, the displacement is the horizontal limit distance L of collection mud mechanism motion at every turn, the vertical limit height of collection mud mechanism motion is H, it decides according to telescopic machanism's flexible distance, as shown in fig. 3, if the desilting degree of depth exceeds H, then need carry out the layering construction, the construction of next floor is carried out again after the upper strata desilting is accomplished, until the desilting work of accomplishing the target depth.
After the sludge is transported to a preset sludge storage yard, the sludge is in a soft plastic shape, does not have obvious fluidity, is directly cured, and is simple and convenient to construct, fast and efficient. According to different purposes of the solidified sludge, the physical and mechanical index requirements of the solidified soil are different. Before curing treatment, an indoor test is needed, the proportion of curing construction is determined according to a design target, and the addition amount of the curing agent in unit sludge is determined. According to the results of the laboratory tests, a corresponding amount of the solidified material was prepared in terms of the total desilting amount. In the sludge storage yard, the sludge is subjected to grid division according to the accumulation depth and the occupied area of the sludge, and the curing agent is uniformly sprayed on the surface of the sludge according to the corresponding addition amount of a design target. And (3) mixing the silt thrown with the curing agent by using a back-shovel excavator, and after uniformly mixing, intensively accumulating the mixed cured soil for curing treatment. After the solidified soil reaches the design index, the solidified soil is transported to a building site by a muck truck.
While embodiments of the invention have been described above, it is not limited to the applications set forth in the description and the embodiments, which are fully applicable in various fields of endeavor to which the invention pertains, and further modifications may readily be made by those skilled in the art, it being understood that the invention is not limited to the details shown and described herein without departing from the general concept defined by the appended claims and their equivalents.
Claims (10)
1. A river and lake dredging machine tool is characterized by comprising:
a frame;
the travelling mechanism comprises a pair of closed hollow buoys, the pair of buoys are symmetrically positioned on two sides below the rack, continuous helical blades are distributed on the peripheries of the buoys, the end parts of the pair of buoys are connected through a driving shaft, and the driving shaft is driven to rotate through a power assembly arranged on the rack so as to drive the pair of buoys to synchronously rotate and realize the movement on the surface of sludge;
the sludge collecting mechanism is of a T-shaped structure and is positioned in the front upper part of the rack, two groups of screw conveyors which move in opposite directions are arranged in the transverse direction of the sludge collecting mechanism, a scraper conveyor is arranged in the vertical direction of the sludge collecting mechanism, the screw conveyors and the scraper conveyor are communicated and arranged, the sludge collecting mechanism is supported in the vertical direction through a hinge mechanism and a telescopic mechanism, the lower ends of the hinge mechanism and the telescopic mechanism are fixed on the rack, the upper ends of the hinge mechanism and the telescopic mechanism are hinged with the vertical direction of the sludge collecting mechanism, and the telescopic mechanism is telescopic;
the conveying mechanism is arranged on the rack and comprises a mud conveying pump and a mud conveying pipeline, the highest point of the scraper conveyor is located right above a mud conveying pump feeding port, one end of the mud conveying pipeline is connected with the mud conveying pump, and the other end of the mud conveying pipeline is connected to a mud storage yard.
2. A river and lake dredging machine as claimed in claim 1, wherein the drive shafts of the buoys are connected with the frame through hydraulic bearings, and the power assembly drives the hydraulic bearings to rotate.
3. A river and lake dredging machine as claimed in claim 1, wherein the hinge mechanism is a triangular steel frame, one top end of the hinge mechanism is hinged to the mud collecting mechanism, and the telescopic mechanism is a hydraulic telescopic rod.
4. A river and lake dredging machine as claimed in claim 1, wherein a mud receiving hopper and a grating are arranged at the feed inlet of the mud conveying pump in communication, the highest point of the scraper conveyor is located right above the mud receiving hopper, and the grating is horizontally arranged in the mud receiving hopper.
5. A river or lake dredging machine as claimed in claim 1, wherein the mud conveying pipe comprises a plurality of mud conveying pipes connected in sequence by flanges.
6. A river and lake dredging machine as claimed in claim 5, wherein the mud conveying pipe is made of high-strength rubber material.
7. A river and lake dredging machine as claimed in claim 1, further comprising a hydraulic system disposed on the frame, wherein the hydraulic system is connected to the telescoping mechanism and the mud pump respectively to provide driving power for the operation of the telescoping mechanism and the mud pump.
8. A dredging method of a river and lake dredging machine is characterized by comprising the following steps:
the method comprises the following steps: before dredging, water in an area to be dredged is pumped to be dry, so that sludge is exposed;
step two: installing a conveying pipeline according to the farthest conveying distance, and sequentially starting a spiral conveyor and a scraper conveyor; then according to the dredging depth, the telescopic mechanism is driven to act, the screw conveyor is driven to descend to the dredging depth, and the telescopic mechanism is closed; under the action of the two groups of screw conveyors, the sludge is gathered from two ends to the middle and enters a trough of the scraper conveyor, and the sludge in the trough is continuously conveyed into a feeding port of a sludge conveying pump;
step three: the sludge pump conveys the conveyed sludge to a preset sludge storage yard through a sludge conveying pipeline, and the sludge is circulated in a reciprocating manner to finish the desilting work of the area;
step four: and starting the power assembly, driving the travelling mechanism to travel to the next construction area, closing the power assembly, closing the travelling mechanism, and repeating the second step and the third step until the dredging is finished.
9. The dredging method of a river and lake dredging machine as claimed in claim 8, wherein a material level detector is arranged at a material inlet of the mud conveying pump, the mud conveying pump is provided with two cylinder bodies, namely an A cylinder and a B cylinder, and the concrete method for conveying the mud by the mud conveying pump is as follows: in the initial state, an inlet of a cylinder A is opened, an inlet of a cylinder B is closed, sludge enters the cylinder A first, when a material level detector monitors that the sludge amount reaches a material level limit value, a reversing valve of a sludge conveying pump deflects to the cylinder A, the inlet of the cylinder A is closed at the moment, the inlet of the cylinder B is opened, the sludge enters the cylinder B of the sludge conveying pump, after the sludge is filled, the reversing valve turns to the cylinder B, the inlet of the cylinder B is closed at the moment, the inlet of the cylinder A is opened, and when the cylinder A advances the sludge, the sludge in the cylinder B is pushed into a sludge conveying pipeline and conveyed to a preset sludge storage yard.
10. The dredging method of a river and lake dredging machine as claimed in claim 8, wherein in the fourth step, the distance of each walking of the walking mechanism is the horizontal limit distance of the dredging movement of the sludge collecting mechanism, the sludge collecting mechanism determines the vertical limit height of the movement of the sludge collecting mechanism according to the telescopic distance of the telescopic mechanism, if the dredging depth exceeds the vertical limit height, layered construction is required, and after the dredging of the upper layer is completed, the construction of the next layer is performed until the dredging work of the target depth is completed.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
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| CN202110567173.1A CN113389236A (en) | 2021-05-24 | 2021-05-24 | River and lake dredging machine and dredging method thereof |
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| Application Number | Priority Date | Filing Date | Title |
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| CN202110567173.1A CN113389236A (en) | 2021-05-24 | 2021-05-24 | River and lake dredging machine and dredging method thereof |
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| CN113389236A true CN113389236A (en) | 2021-09-14 |
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| CN202110567173.1A Pending CN113389236A (en) | 2021-05-24 | 2021-05-24 | River and lake dredging machine and dredging method thereof |
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| CN (1) | CN113389236A (en) |
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| CN203080577U (en) * | 2013-01-31 | 2013-07-24 | 徐州天科机械制造有限公司 | Conveying vehicle for cleaning and excavating of coal slime |
| CN106759599A (en) * | 2016-12-01 | 2017-05-31 | 衡阳市稼乐农机科技有限公司 | A kind of shallow water silt remover |
| CN107840555A (en) * | 2017-12-21 | 2018-03-27 | 广东胜隆汉华实业有限公司 | A kind of mud dystopy curing process device and method |
| CN208200704U (en) * | 2018-03-19 | 2018-12-07 | 江苏省水利机械制造有限公司 | Shallow-layer sludge solidification equipment |
| CN110106934A (en) * | 2019-06-05 | 2019-08-09 | 中清深利(深圳)科技有限公司 | A kind of underwater intelligent silt remover |
| CN215105622U (en) * | 2021-05-24 | 2021-12-10 | 武汉二航路桥特种工程有限责任公司 | River and lake dredging machine |
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| JPH093962A (en) * | 1995-06-23 | 1997-01-07 | Oomotogumi:Kk | Sludge collecting method and device of dredge |
| CN2343209Y (en) * | 1998-06-19 | 1999-10-13 | 侯家瑞 | Remote-controlled submersible dredging vehicle |
| CN2532125Y (en) * | 2002-03-06 | 2003-01-22 | 长沙中联重工科技发展股份有限公司 | Plunger type mud-suction mud-discharge apparatus for desilting |
| CN1554833A (en) * | 2003-12-25 | 2004-12-15 | 章永泰 | Crawler-type under water ecological precision thin layer slurry dredger |
| CN101586545A (en) * | 2009-04-23 | 2009-11-25 | 李新桥 | Plunger-type sludge pumping method and device |
| CN202170808U (en) * | 2011-07-29 | 2012-03-21 | 飞翼股份有限公司 | Cleaner for coal mine |
| CN203080577U (en) * | 2013-01-31 | 2013-07-24 | 徐州天科机械制造有限公司 | Conveying vehicle for cleaning and excavating of coal slime |
| CN106759599A (en) * | 2016-12-01 | 2017-05-31 | 衡阳市稼乐农机科技有限公司 | A kind of shallow water silt remover |
| CN107840555A (en) * | 2017-12-21 | 2018-03-27 | 广东胜隆汉华实业有限公司 | A kind of mud dystopy curing process device and method |
| CN208200704U (en) * | 2018-03-19 | 2018-12-07 | 江苏省水利机械制造有限公司 | Shallow-layer sludge solidification equipment |
| CN110106934A (en) * | 2019-06-05 | 2019-08-09 | 中清深利(深圳)科技有限公司 | A kind of underwater intelligent silt remover |
| CN215105622U (en) * | 2021-05-24 | 2021-12-10 | 武汉二航路桥特种工程有限责任公司 | River and lake dredging machine |
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