AU2019422012A1

AU2019422012A1 - Bucket-wheel emergency dredging device

Info

Publication number: AU2019422012A1
Application number: AU2019422012A
Authority: AU
Inventors: Xiaocong DAI; Ye Ding; Hui Feng; Xiaopeng Li; Zhilong SU; Yichao Sun; Senwei WANG; Decheng ZHU
Original assignee: Tianjin Environmental Prot Technical Development Center Design Institute
Current assignee: Tianjin Technological Development Center Design Institute Of Environmental Protection Co Ltd
Priority date: 2019-06-18
Filing date: 2019-09-27
Publication date: 2021-01-14
Anticipated expiration: 2039-09-27
Also published as: AU2019422012B2; CN110239972B; CN110239972A; WO2020252977A1

Abstract

OF THE DISCLOSURE A bucket-wheel emergency dredging device comprises a transporter and a silt excavating bucket. The transporter is used for transporting silt and reducing the water content of the silt in the transportation process and comprises a conveyor and at least one 5 silt conveying bucket. The silt excavating bucket is hinged to a driven wheel arranged at the bottom of the conveyor, and an outlet allowing the silt conveying bucket to pass through is formed in the bottom surface of the silt excavating bucket. The silt conveying bucket comprises a connecting side wall connected to a conveyor belt of the conveyor, wherein two parallel sluicing side walls are arranged on the connecting side wall, sluicing 10 cavities are formed in the sluicing side walls, and sluicing holes communicated with the sluicing cavities are formed in the tops and bottoms of the sluicing side walls. The bottom surface of the silt conveying bucket is an arc surface, which is open downwards and is formed with drain holes. The bucket-wheel emergency dredging device can fulfill silt excavation, silt transportation and silt dewatering continuously, thus reducing the number 15 of facilities participating in dredging work and improving the dredging efficiency.

Description

BUCKET-WHEEL EMERGENCY DREDGING DEVICE BACKGROUND OF THE INVENTION

[0001] Technical Field

[0002] The invention belongs to the field of facilities for clearing shoal silt, in

particular to a bucket-wheel emergency dredging device.

[0003] 2. Description of Related Art

[0004] The rapid development of national economy leads to increasingly serious

destruction of the ecological environment. Many domestic rivers and lakes have been

polluted to different extents. Contaminated silt will be accumulated in shoal regions of the

polluted water areas, and as time goes on, germs will be bred by means of organic

substances in the silt and will destroy the ecological environment in the shoal regions.

Thus, silt clearing is a big national problem urgently to be solved at present.

[0005] However, due to the lack of special shoal silt clearing facilities in the prior

art, different facilities such as an excavation facility, a transportation facility, a dewatering

facility and a treatment facility have to be selectively used to operate cooperatively to

clear silt. In addition, since each facility can perform only one procedure in the entire silt

clearing process, the existing silt clearing process is intermittent, and a large amount of

time will be wasted in the process of transferring silt between different facilities, thus

resulting in low construction efficiency. Moreover, the coordination and cooperation

between different facilities participating in construction may severely affect the silt

clearing efficiency, thus further reducing the silt clearing efficiency. Besides, the

participation of more facilities in construction is accompanied by more operators, which

means that the cooperative operation of multiple facilities will additionally increase the

economic cost of silt clearing.

BRIEF SUMMARY OF THE INVENTION

[0006] In view of this, the objective of the invention is to provide a bucket-wheel

emergency dredging device to improve the work efficiency and work continuity of silt

clearing.

[0007] To fulfill the above objective, the technical solution adopted by the

invention is as follows:

[0008] A bucket-wheel emergency dredging device comprises a transporter and a

silt excavating bucket, wherein the transporter is used for transporting silt and reducing

the water content of the silt in the transportation process and comprises a conveyor and at

least one silt conveying bucket; the silt excavating bucket is hinged to a driven wheel

arranged at the bottom of the conveyor, and an outlet allowing the silt conveying bucket to

pass through is formed in the bottom surface of the silt excavating bucket; and

[0009] The silt conveying bucket comprises a connecting side wall, wherein the

connecting side wall is connected to a conveyor belt of the conveyor, two parallel sluicing

side walls are arranged on the connecting side wall, sluicing cavities are formed in the

sluicing side walls, sluicing holes communicated with the sluicing cavities are formed in

the tops and bottoms of the sluicing side walls, and the bottom surface of the silt

conveying bucket is an arc surface, which is open downwards and is formed with drain

holes.

[0010] Furthermore, the connecting side wall is connected to the conveyor belt

through at least two rivets, and a connection line between every two adjacent rivets is

parallel to the axis of the driven wheel of the conveyor belt.

[0011] Furthermore, the transporter further comprises a buffer unit which is

arranged below the rivets to reduce the shear stress borne by the rivets and to improve the

stability of the silt conveying bucket; and the buffer unit comprises a support rod, an end

baffle and a spring, wherein the support rod has an end connected to the conveyor belt and an end penetrating through the connecting side wall to be connected to the end baffle arranged in the silt conveying bucket, and the spring is disposed around the support rod and has two ends respectively abutting against the end baffle and the connecting side wall.

[0012] Furthermore, water holes are formed in sides, located in the silt conveying

bucket, of the sluicing side walls and are communicated with the sluicing cavities, and

water in silt can be guided into the sluicing cavities via the water holes.

[0013] Furthermore, the silt conveying bucket comprises an excavating side wall

which is a slant plane arranged between the two sluicing side walls, and the distance from

the top of the excavating side wall to the connecting side wall is greater than the distance

from the bottom of the excavating side wall to the connecting side wall.

[0014] Furthermore, the dredging device further comprises a first hydraulic rod,

wherein the first hydraulic rod has an end hinged to a support frame of the conveyor and

an end hinged to the silt excavating bucket. The excavating angle of the silt excavating

bucket can be adjusted through the first hydraulic rod.

[0015] Furthermore, the dredging device further comprises a second hydraulic rod,

wherein the second hydraulic rod has an end hinged to the support frame of the conveyor

and an end connected to a carrying facility of the dredging device, and a driving wheel

arranged at the top of the conveyor is hinged to the carrying facility. The operating angle

of the dredging device can be adjusted through the second hydraulic rod.

[0016] Furthermore, bucket teeth are arranged on the silt excavating bucket and

are detachably connected to an excavating end of the bottom surface of the silt excavating

bucket.

[0017] Compared with the prior art, the bucket-wheel emergency dredging device

provided by the invention has the following advantages:

[0018] According to the bucket-wheel emergency dredging device of the

invention can fulfill silt excavation, silt transportation and silt dewatering continuously through the cooperation of the silt excavating bucket and the transporter, thus improving the silt clearing efficiency. When the dredging device operates, the silt excavating bucket can excavate silt accumulated on a shoal and discharge the silt into the silt conveying bucket via the outlet, and the silt conveying bucket moves along with the conveyor belt to eventually convey the silt into the subsequent treatment facility. The device is specially used for clearing shoal silt and can fulfill continuous silt clearing, thus having higher work efficiency and lower economic costs. Moreover, the device can reduce the water content of silt in the transportation process. Particularly, when the silt conveying bucket moves along with the conveyor belt, water in the silt can be discharged via the drain holes formed in the bottom surface of the silt conveying bucket, so that the water content of the silt conveyed into the treatment facility is reduced to facilitate silt treatment. In addition, due to the fact that the bottom surface of the silt conveying bucket is arc and the sluicing side walls are arranged in the silt conveying bucket, so that water discharged out of the former silt conveying bucket directly enters the sluicing cavities in the next silt conveying bucket and will not be mixed with silt in the next silt conveying bucket. In this way, water discharged via the drain holes can be prevented from entering the subsequent silt conveying bucket, thus guaranteeing the drainage effect of the dredging device.

[0019] (2) According to the bucket-wheel emergency dredging device of the

invention, the silt excavating depth and angle can be adjusted through the first hydraulic

rod and the second hydraulic rod, so that the operating state of the device can be adjusted

according to different working conditions and requirements. In operation, the inclination

angle of the silt excavating bucket can be adjusted through the first hydraulic rod to realize

different excavating depths of the device, and the angle between the entire dredging device

and the ground can be adjusted through the second hydraulic rod to select an appropriate

excavating angle of the device according to the hardness of silt.

[0020] (3) According to the bucket-wheel emergency dredging device of the invention, the buffer unit can reduce the shear stress bome by the rivets, so that the service life of the rivets is prolonged. Considering that the contact area between the conveyor belt and the silt conveying bucket will become smaller when the conveyor belt moves close to the driving wheel or the driven wheel, and the gravity of the silt conveying bucket will be completely exerted on the rivets at this moment, the buffer unit is arranged to share the gravity of the silt conveying bucket to protect the rivets against breakage at such positions.

In addition, the spring is arranged in the buffer unit and can reduce the impact caused by

shakes when the silt conveying bucket shakes in the moving process, thus improving the

moving stability of the silt conveying bucket.

[0021] (4) According to the bucket-wheel emergency dredging device of the

invention, the excavating side wall is arranged on the silt conveying bucket, so that when

the device is used to clear soft silt, the silt excavating bucket can be lifted, and the silt

conveying bucket can be directly used for silt excavation and transportation, and thus, the

device has higher work efficiency under special working conditions.

BRIEF DESCRIPTION OF THE SEVERAL VIEWS OF THE DRAWINGS

[0022] The accompanying drawings, as one part of the invention, are provided to

gain a further understanding of the invention. The illustrative embodiments of the

invention and the description thereof are used to explain the invention, and are not

intended to inappropriately limit the invention. Wherein:

[0023] FIG. 1 is a structural diagram of a bucket-wheel emergency dredging device

in an embodiment of the invention;

[0024] FIG. 2 is a structural diagram of a silt conveying bucket in the embodiment

of the invention;

[0025] FIG. 3 is a sectional view of the silt conveying bucket in the embodiment of

the invention;

[0026] FIG. 4 is a structural diagram of a buffer unit in the embodiment of the

invention.

[0027] Reference signs in the figures:

[0028] 1, silt excavating bucket; 2, conveyor belt; 21, driven wheel; 22, driving

wheel; 23, support frame; 3, silt conveying bucket; 31, connecting side wall; 32, sluicing

side wall; 321, sluicing cavity; 322, sluicing hole; 323, water hole; 33, excavating side

wall; 34, drain hole; 4, rivet; 51, support rod; 52, end baffle; 53, spring; 6, carrying facility;

7, treatment facility; 8, first hydraulic rod; 9, second hydraulic rod.

DETAILED DESCRIPTION OF THE INVENTION

[0029] It should be noted that the embodiments and features in these embodiments

can be combined without conflictions.

[0030] It should be understood that the terms such as "central", "vertical",

"horizontal", "upper", "lower", "front", "rear", "left", "right", "vertical", "horizontal",

"top", "bottom", "inner" and "outer" in the description of the invention are used to

indicate directional or positional relations on the basis of the accompanying drawings

merely for the purpose of facilitating and simplifying the description of the invention, do

not indicate or imply that the devices or elements referred to must have specific directions

or must be configured or operated in specific directions, and thus should not be construed

as limitations of the invention. In addition, the terms such as "first" and "second" are

merely used for the purpose of description, and do not indicate or imply relative

importance or implicitly specify the quantity of the technical features referred to. Thus, the

quantity of features defined by these terms such as "first" and "second" may be explicitly

or impliedly one or more. Unless otherwise specified, "multiple" involved in the

description of the invention refers to two or more.

[0031] It should be noted that unless otherwise clearly specified or defined, the terms such as "mount", "connect" and "connection" involved in the description of the invention should be broadly understood. For example, "connection" may refer to fixed connection, detachable connection or integral connection, or mechanical connection or electrical connection, or direct connection or connection by means of an intermediate, or internal communication of two elements. Those ordinarily skilled in the art can appreciate the specific meanings of these terms in the invention as the case may be.

[0032] The invention will be expounded below with reference to the

accompanying drawings and embodiments.

[0033] A bucket-wheel emergency dredging device is used for clearing silt

accumulated in shoal regions and may be mounted on a carrying facility 6 at work, and the

dredging area of the bucket-wheel emergency dredging device can be enlarged by moving

the carrying facility 6. The carrying facility 6 may be a crawler carrying vehicle, a tire

carrying vehicle, a screw-propulsion carrying vehicle, or a water mobile facility such as an

engineering ship, as required by the actual working condition. As shown in FIG. 1, the

dredging device comprises a transporter and a silt excavating bucket 1, wherein the

transporter is used for transporting silt and reducing the water content of the silt in the

transportation process, and excavated and transported silt will enter a treatment facility 7

to be purified.

[0034] The transporter comprises a conveyor and silt conveying buckets 3.

Specifically, the conveyor comprises a conveyor belt 2, a support frame 23, a driven wheel

21 and a driving wheel 22, wherein the driven wheel 21 is rotatably arranged at the bottom

end of the support frame 23, the driving wheel 22 is rotatably arranged at the top end of

the support frame 23, the conveyor belt 2 is arranged around the driving wheel 22 and the

driven wheel 21, and when the driving wheel 22 starts to rotate, the conveyor belt 2 will

roll around the driving wheel 22 and the driven wheel 21. Illustratively, the driving wheel

22 in this embodiment may be directly powered by a driving motor, and in this case, an output shaft of the driving motor is connected to the driving wheel. Or, the driving wheel

22 is indirectly powered by the driving motor to rotate by means of belt drive, chain

rotation or gear drive.

[0035] The silt conveying buckets 3 are used for transporting and dewatering the

silt. As illustrated by FIG. 2 and FIG. 3, each silt conveying bucket 3 is bucket-like

container with the top open and comprises a connecting side wall 31 connected to the

conveyor belt 2, so that when the conveyor belt 2 starts to move, the silt conveying bucket

3 will synchronously move along with the conveyor belt 2. Optionally, the connecting side

wall 31 is connected to the conveyor belt 2 through at least two rivets 4, and a connection

line between every two adjacent rivets 4 is parallel to the axis of the driven wheel 21 of

the conveyor belt 2 . As can be seen from FIG. 3, in this embodiment, the rivets 4 for

connecting the silt conveying bucket 3 and the conveyor belt 2 are linearly disposed on the

connecting side wall 31, so that the silt conveying bucket 3 can slightly incline when

moving close to the driving wheel 22 or the driven wheel 21 to smoothly pass through the

turns of the conveyor belt 2. In addition, to improve the mechanical stability of the silt

conveying bucket 3, the straight line where the rivets 4 are located should be positioned in

the middle portion or upper portion of the connecting side wall, so that when the silt

conveying bucket 3 full of silt moves upwards, the bottom of the connecting side wall 31

can abut against the conveyor belt 2.

[0036] When the silt conveying buckets 3 full of silt move close to the driving

wheel 22 or the driven wheel 21, the rivets 4 for connection will suffer from a large shear

stress. In order to reduce the load of the rivets 4 to prolong the service life of the device,

buffer units may be arranged in the conveyor to share the load borne by the rivets 4.

Specifically, the structure of the buffer units is shown in FIG. 4. As shown in FIG. 4, each

buffer unit comprises a support rod 51, an end baffle 52 and a spring 53, wherein one

end of the support rod 51 is connected to the conveyor belt 2, the other end of the support rod 51 penetrates through the connecting side wall 31 to be connected to the end baffle 52 arranged in the silt conveying bucket 3, and the spring 53 is disposed around the support rod 51 and has two ends respectively abutting against the end baffle 52 and the connecting side wall 31. When the silt conveying bucket 3 moves close to the driven wheel 21, the torque generated by the gravity of silt drives the bottom of the silt conveying bucket 3 to draw close to the conveyor belt 2, and at this moment, the rivets 4 will suffer from a large shear stress. The buffer unit can reduce the impact of the torque on the rivets 4, and an elastic force generated by the spring 53 drives the bottom of the silt conveying bucket 3 to draw away from the conveyor belt 2, so that the shear stress bome by the rivets 4 is reduced, and the service life of the rivets 4 is prolonged. In addition, the buffer unit can improve the moving stability of the silt conveying bucket 3. Particularly, when the silt conveying bucket 3 moves along with the conveyor belt 2, the conveyor belt 2 may shake, and the spring 3 in the buffer unit can reduce the impact of the shakes on the silt conveying bucket 3 to ensure that the silt conveying bucket 3 moves more steadily.

[0037] The bottom surface of the silt conveying bucket 3 is an arc surface which is

open downwards, and a plurality of drain holes 34 are formed in the arc surface. After silt

enters the silt conveying bucket 3, water in the silt will flow towards two sides along the

arc bottom surface, and the drain holes 34 not only can block solid silt, but also allow

water to flow through, so that the water content of the silt is reduced in the transportation

process.

[0038] In addition, to prevent water from the former silt conveying bucket 3 from

entering the next silt conveying bucket 3, two parallel sluicing side walls 32 are arranged

on the connecting side wall 31, sluicing cavities 321 are formed in the sluicing side walls

32, and sluicing holes 322 communicated with the sluicing cavities 321 are formed in the

tops and bottoms of the sluicing side walls 32. Water flowing out of the former silt

conveying bucket 3 via the drain holes 34 will be guided by the arc bottom surface to flow towards the sluicing side walls 32 and then enter the sluicing cavities 321 via the sluicing holes 32 formed in the tops of the sluicing side walls 32, so that silt water from the former silt conveying bucket is prevented from entering the next silt conveying bucket 3. With the continuous movement of the silt conveying bucket 3, water in the sluicing cavities 321 will be discharged via the drain holes 322 formed in the bottoms of the sluicing cavities 32, thus being prevented from entering the treatment facility 7.

[0039] In this embodiment, silt is excavated by the silt excavating bucket 1 before

transportation. As shown in FIG. 1, the silt excavating bucket 1 is arranged at the bottom

of the conveyor and is hinged to the driven wheel 21. An outlet allowing the silt conveying

bucket 3 to pass through is formed in the bottom surface of the silt excavating bucket 1;

and after the silt enters the silt excavating bucket 1, the silt conveying bucket 3 moving

along with the conveyor belt 2 enters the silt excavating bucket 1 via the outlet, and at this

moment, the silt enters the silt conveying bucket 3 and is then conveyed into the treatment

facility with the movement of the silt conveying bucket 3. In the prior art, an excavating

facility and a transportation facility should be used cooperatively to fulfill excavation and

transportation of silt, so that the silt clearing efficiency depends on the degree of

coordination of the two facilities to a great extent, and the work progress of silt clearing

will be very slow if the degree of coordination of the two facilities is low. In this

embodiment, the coordination of the silt excavating bucket 1 and the silt conveying bucket

3 can be realized by controlling the moving speed of the conveyor; and as long as the

moving speed of the silt conveying bucket 3 matches the excavating speed of the silt

excavating bucket 1, excavated silt will be immediately conveyed to the outside by the silt

conveying bucket 3, so that the silt clearing efficiency is greatly improved.

[0040] Optionally, in order to improve the excavating capacity of the silt

excavating bucket 1 to ensure that the silt excavating bucket 1 can adapt to a hard silt

clearing task, bucket teeth may be arranged on the silt excavating bucket 1 and are detachably connected to the excavating end of the bottom surface of the silt excavating bucket 1. Particularly, mounting holes are formed in the excavating end of the bottom surface of the silt excavating bucket 1, and when the device is used to clear silt under a hard geological condition, the bottoms of the bucket teeth can be inserted into the mounting holes and are fixed with threads or locking nuts. After usage, the bucket teeth can be detached to be cleaned and can be changed in time according to the wear condition thereof.

[0041] In this embodiment, in order to adjust the operating posture of the silt

excavating bucket 1 to ensure that the device is competent for various silt clearing tasks, a

hydraulic control unit may be arranged in the dredging device. Particularly, the hydraulic

control unit may comprise a first hydraulic rod 8 for controlling the angle of the silt

excavating bucket 1 and a second hydraulic rod 9 for adjusting the operating angle of the

dredging device.

[0042] One end of the first hydraulic rod 8 is hinged to the support frame 23 of the

conveyor, and the other end of the first hydraulic rod 8 is hinged to the silt excavating

bucket 1. When the first hydraulic rod 8 stretches or retreats, the silt excavating bucket 1

will rotate with a hinge point of the silt excavating bucket 1 and the driven wheel 21 as the

axis. Illustratively, when deep silt is to be cleared, the first hydraulic rod 8 can be extended

to drive the excavating end of the silt excavating bucket 1 to rotate downwards. When

shallow silt is to be cleared, the first hydraulic rod 8 can be retreated to drive the

excavating end of the silt excavating bucket 1 to rotate upwards.

[0043] One end of the second hydraulic rod 9 is connected to the support frame 23

of the conveyor, and the other end of the second hydraulic rod 9 is hinged to the carrying

facility 6 of the dredging device. In addition, when the second hydraulic rod 9 is to be

mounted, the driving wheel 22 of the conveyor should be hinged to the carrying facility 6.

When the second hydraulic rod 9 stretches or retreats, the conveyor will rotate with a hinge point of the driving wheel 22 and the carrying facility 6 as the axis. Illustratively, when silt to be cleared has a large hardness, the angle between the silt excavating bucket 1 and the ground can be increased to lower the excavating difficulty, and in this case, the second hydraulic rod 9 can be retreated to drive the bottom of the conveyor to draw close to the carrying facility 6. When silt to be cleared has a small hardness, the angle between the silt excavating bucket 1 and the ground can be decreased to increase the excavating speed, and in this case, the second hydraulic rod 9 can be extended to drive the bottom of the conveyor to draw away from the carrying facility 6.

[0044] Moreover, in this embodiment, a sensor may be additionally configured in

the hydraulic control unit to improve the control precision. Illustratively, an MSS301

bucket rod sensor or an MSS306 bucket rod sensor may be additionally configured in the

hydraulic control unit to realize accurate control over the dredging device in cooperation

with a corresponding control system.

[0045] Considering that silt in different regions has different water contents, when

the dredging device in this embodiment is used to clear silt with a high water content, the

drainage capacity of the silt conveying bucket 3 needs to be improved to quickly discharge

water in the silt. Optionally, water holes 323 may be formed in the sides, located in the silt

conveying bucket 3, of the sluicing side walls 32 and are communicated with the sluicing

cavities 321. Water can easily enter the sluicing cavities 321 via the water holes 323, so

that the water discharge speed is increased.

[0046] When the dredging device in this embodiment is used to clear soft silt with

a low water content, the silt excavating bucket 1 can be lifted, and the transporter is

directly used to fulfill silt excavation and transportation. Optionally, the silt conveying

bucket 3 comprises an excavating side wall 33 which is a slant plane arranged between the

two sluicing side walls 32, and the distance from the top of the excavating side wall 33 to

the connecting side wall 31 is greater than the distance from the bottom of the excavating side wall 33 to the connecting side wall 31. By arranging the excavating side wall 33, the silt excavating bucket 3 has a silt excavation function. When operated, the excavating side wall 33 can directly contact with silt; and when the silt excavating bucket 3 moves, the excavating side wall 33 can lift the silt and guide the silt into the silt conveying bucket 3, so that the working efficiency of the device is improved when the dredging device is used to clear dry and soft silt.

[0047] In addition, the dredging device in this embodiment may also have a field

flattening function. When the dredging device is used for field flattening, the treatment

device 7 on the carrying facility 6 may be replaced with a feeder, and the transporter

should be rotated reversely. Roadbed stones can be placed into the silt conveying bucket 3

through the feeder and are then laid on the road surface when the silt conveying bucket 3

moves, and afterwards, the road surface covered with the stones is paved and flattened by

means of the bottom surface of the silt excavating bucket 1.

[0048] The effects of the aforesaid solution are explained below:

[0049] The bucket-wheel emergency dredging device provided by this

embodiment can replace multiple cooperative facilities to complete silt excavation and silt

transportation, thus improving the shoal silt clearing efficiency. Moreover, the device can

reduce the water content of silt in the transportation process, and water in the former silt

conveying bucket will not be mixed with silt in the next silt conveying bucket. In addition,

the silt conveying buckets are connected to the conveyor belt through the linearly arranged

rivets, and the buffer units are arranged at the joints of the silt conveying buckets and the

conveyor belt, so that the moving smoothness and stability of the silt conveying buckets

are improved by means of the rivets and the buffer units, and the device is protected

against faults in the silt conveying process.

[0050] The above embodiments are merely preferred ones of the invention, and are

not intended to limit the invention. Any modifications, equivalent substitutions or improvements obtained on the basis of the spirit and principle of the invention should also fall within the protection scope of the invention.

Claims

What is claimed is:

1. A bucket-wheel emergency dredging device, comprising a transporter and a silt

excavating bucket (1), wherein the transporter is used for transporting silt and reducing a

water content of the silt in the transportation process and comprises a conveyor and at

least one silt conveying bucket (3); the silt excavating bucket (1) is hinged to a driven

wheel (21) arranged at a bottom of the conveyor, and an outlet allowing the silt conveying

bucket (3) to pass through is formed in a bottom surface of the silt excavating bucket (1);

and

the silt conveying bucket (3) comprises a connecting side wall (31), wherein the

connecting side wall (31) is connected to a conveyor belt (2) of the conveyor, two parallel

sluicing side walls (32) are arranged on the connecting side wall (31), sluicing cavities

(321) are formed in the sluicing side walls (32), sluicing holes (322) communicated with

the sluicing cavities (321) are formed in tops and bottoms of the sluicing side walls (32),

and a bottom surface of the silt conveying bucket (3) is an arc surface, which is open

downwards and is formed with drain holes (34).

2. The bucket-wheel emergency dredging device according to Claim 1, wherein the

connecting side wall (31) is connected to the conveyor belt (2) through at least two rivets

(4), and a connection line between every two adjacent said rivets (4) is parallel to an axis

the driven wheel (21) of the conveyor belt (2).

3. The bucket-wheel emergency dredging device according to Claim 2, wherein the

transporter further comprises a buffer unit, which is arranged below the rivets (4) and

comprises a support rod (51), an end baffle (52) and a spring (53), wherein the support rod

(51) has an end connected to the conveyor belt (2) and an end penetrating through the

connecting side wall (31) to be connected to the end baffle (52) arranged in the silt

conveying bucket (3), and the spring (53) is disposed around the support rod (51) and has

two ends respectively abutting against the end baffle (52) and the connecting side wall

(31).

4. The bucket-wheel emergency dredging device according to Claim 1, wherein water

holes (323) are formed in sides, located in the silt conveying bucket (3), of the sluicing

side walls (32) and are communicated with the sluicing cavities (321).

5. The bucket-wheel emergency dredging device according to Claim 1, wherein the silt

conveying bucket (3) comprises an excavating side wall (33) which is a slant plane

arranged between the two sluicing side walls (32), and a distance from a top of the

excavating side wall (33) to the connecting side wall (31) is greater than a distance from a

bottom of the excavating side wall (33) to the connecting side wall (31).

6. The bucket-wheel emergency dredging device according to Claim 1, further

comprising a first hydraulic rod (8), wherein the first hydraulic rod (8) has an end hinged

to a support frame (23) of the conveyor and an end hinged to the silt excavating bucket

(1).

7. The bucket-wheel emergency dredging device according to Claim 1 or 6, further

comprising a second hydraulic rod (9), wherein the second hydraulic rod (9) has an end

hinged to the support frame (23) of the conveyor and an end connected to a carrying

facility (6) of the dredging device, and a driving wheel (22) arranged at a top of the

conveyor is hinged to the carrying facility (6).

8. The bucket-wheel emergency dredging device according to Claim 1, wherein bucket

teeth are arranged on the silt excavating bucket (1) and are detachably connected to an

excavating end of the bottom surface of the silt excavating bucket (1).