CN211172159U

CN211172159U - A excavating equipment for river course is dredged

Info

Publication number: CN211172159U
Application number: CN202020596983.0U
Authority: CN
Inventors: 邓志刚; 杨建青; 任永; 杨明虎; 唐于伟; 谢碧鸿
Original assignee: Hainan River Comprehensive Regulation Engineering Co ltd
Current assignee: Hainan River Comprehensive Regulation Engineering Co ltd
Priority date: 2020-04-20
Filing date: 2020-04-20
Publication date: 2020-08-04
Anticipated expiration: 2030-04-20

Abstract

The utility model provides a mud digging device for river course is dredged, including the mud digging platform, the dredge pump, conveyer pipe and collection dirt box, be equipped with collection dirt box on the mud digging platform, collection dirt box is including adding the mud fill, the cylindricality screen cloth, water catch bowl and collection dirt groove, cylindricality screen cloth one end and the bottom intercommunication that adds the mud fill, be equipped with by motor drive pivoted toper pivot in the cylindricality screen cloth, the toper pivot is equipped with helical blade, the one end that the toper pivot diameter is little is located the below that adds the mud fill, the one end that adds the mud fill is kept away from to the cylindricality screen cloth and collection dirt groove intercommunication, cylindricality screen cloth bottom is equipped with the water catch bowl, the water catch bowl bottom is through the lateral wall intercommunication of backflow water pipe and conveyer pipe, the lateral wall of water catch bowl is equipped with the drain pipe, the drain pipe delivery port communicates with the river. The water of the pumped sludge is removed, the water content of the sludge is reduced, and meanwhile, the separated water part flows back into the conveying pipe, so that the sludge concentration on the upper part of the conveying pipe is reduced, and the blockage is avoided.

Description

A excavating equipment for river course is dredged

Technical Field

The utility model relates to a dredge technical field, in particular to a dredge device for river course is dredged.

Background

When the river channel is dredged, the sludge at the bottom needs to be dug out, and the sludge is conveyed upwards from the river channel by using a dredge pump. In a place where the transport pipe is long, moisture in the sludge permeates downward, so that the sludge concentration at the upper part of the transport pipe is high, and clogging is likely to occur. The sludge conveyed by the conveying device contains moisture, so that the weight of the sludge is greatly improved, and inconvenience is brought to later-stage transportation.

Disclosure of Invention

To the above prior art, the utility model provides a mud digging device for river course is dredged, the moisture that will take out the silt that comes is got rid of, reduces the water content of silt, and the part of water that will separate out simultaneously flows back in the conveyer pipe, reduces the silt concentration on conveyer pipe upper portion, avoids taking place to block up.

The technical scheme of the invention is realized as follows:

a dredging device for dredging a river channel comprises a dredging platform, a dredging pump, a conveying pipe and a sludge collecting tank, wherein the sludge collecting tank is arranged on the dredging platform and comprises a sludge adding hopper, a cylindrical screen, a water collecting tank and a sludge collecting tank, one end of the cylindrical screen is communicated with the bottom of the sludge adding hopper, a conical rotating shaft driven by a motor to rotate is arranged in the cylindrical screen, the conical rotating shaft is provided with a spiral blade, one end with a small diameter of the conical rotating shaft is positioned below the sludge adding hopper, one end of the cylindrical screen, which is far away from the sludge adding hopper, is communicated with the sludge collecting tank, the water collecting tank is arranged at the bottom of the cylindrical screen, the bottom of the water collecting tank is communicated with the side wall of the conveying pipe through a backflow pipe, a water outlet of the water collecting tank is communicated with the river channel, and the dredging pump is communicated with the tail end of the conveying pipe, the head end of the conveying pipe is positioned above the feed inlet.

Furthermore, a filter cover is arranged at the water inlet of the backflow water pipe.

Further, the backward flow water pipe through a plurality of branch pipes with the conveyer pipe intercommunication, the branch pipe is located the not co-altitude of conveyer pipe, the conveyer pipe with the backward flow water pipe is equipped with screwed joint, the both ends of branch pipe are equipped with the screw thread, the branch pipe pass through the screw thread with conveyer pipe and backward flow water piping connection, the screw thread at branch pipe both ends is to opposite soon.

Furthermore, a filter screen is arranged in the threaded joint of the conveying pipe.

Furthermore, the filter screen is fixed on a movable ring, the movable ring is connected with the threaded joint in a sliding mode, the movable ring is provided with a positioning groove, and the end face of the branch pipe is provided with positioning teeth which are clamped into the positioning groove.

Furthermore, the screwed joint is provided with a sliding groove along the axial direction, the movable ring is provided with a sliding block, and the sliding block slides along the sliding groove.

Further, the quantity of the sliding grooves is at least two, and the sliding grooves are circumferentially and uniformly distributed on the inner wall of the threaded connector.

The beneficial effects of the utility model reside in that:

the clearance between the large-diameter end of the conical rotating shaft and the cylindrical screen is small, so that the space where the sludge is located is compressed when the sludge is conveyed along the cylindrical screen, and the sludge is extruded to filter water. The water separated from the sludge flows into the water collecting tank at the bottom of the cylindrical screen through the cylindrical screen, the filtered sludge has low water content, and the particles are dry and convenient to transport. The end of the cylindrical screen, which is located at the large end of the conical rotating shaft, is provided with an opening for discharging sludge, and the sludge falls into the sludge collecting tank through the opening for collection after water removal. And one part of water in the water collecting tank flows into the conveying pipe through the return pipe, so that the concentration of the sludge is reduced, and the sludge is conveyed more smoothly in the conveying pipe. Most of the water in the water collecting tank is drained into the river channel again through the drain pipe.

Drawings

In order to more clearly illustrate the technical solutions in the embodiments of the present invention, the drawings needed to be used in the description of the embodiments will be briefly introduced below, and it is obvious that the drawings in the following description are only preferred embodiments of the present invention, and it is obvious for those skilled in the art that other drawings can be obtained according to these drawings without inventive effort.

Fig. 1 is a schematic structural view of a dredging device for dredging a river channel of the present invention;

FIG. 2 is a schematic view of the connection structure of the branch pipe and the threaded joint of the present invention;

in the figure, 1 a dredging platform, 2 a dredging pump, 3 a conveying pipe, 4 a mud collecting box, 5 a mud bucket, 6 a cylindrical screen, 7 a water collecting tank, 8 a mud collecting tank, 9 a motor, 10 a conical rotating shaft, 11 helical blades, 12 a water flowing pipe, 13 a water discharging pipe, 14 a filter cover, 15 branch pipes, 16 threaded connectors, 17 a filter screen, 18 a movable ring, 19 positioning teeth, 20 positioning grooves, 21 sliding grooves and 22 sliding blocks.

Detailed Description

In order to better understand the technical content of the present invention, the following embodiments are provided, and the present invention is further described with reference to the accompanying drawings.

Example 1

Referring to fig. 1, a dredging device for dredging a river channel comprises a dredging platform 1, a dredging pump 2, a conveying pipe 3 and a sludge collection tank 4, wherein the sludge collection tank 4 is arranged on the dredging platform 1, the sludge collection tank 4 comprises a sludge feeding hopper 5, a cylindrical screen 6, a water collection tank 7 and a sludge collection tank 8, one end of the cylindrical screen 6 is communicated with the bottom of the sludge feeding hopper 5, a tapered rotating shaft 10 driven by a motor 9 to rotate is arranged in the cylindrical screen 6, the tapered rotating shaft 10 is provided with a helical blade 11, one end of the tapered rotating shaft 10 with a small diameter is positioned below the sludge feeding hopper 5, one end of the cylindrical screen 6 far away from the sludge feeding hopper 5 is communicated with the sludge collection tank 8, the water collection tank 7 is arranged at the bottom of the cylindrical screen 6, the bottom of the water collection tank 7 is communicated with the side wall of the conveying pipe 3 through a backflow pipe 12, a drain pipe 13 is arranged on the side wall of the water collection tank 7, the water outlet of the water discharge pipe 13 is communicated with a river channel, the dredge pump 2 is communicated with the tail end of the conveying pipe 3, and the head end of the conveying pipe 3 is positioned above the feed inlet.

The dredging platform 1 can be for the ship or the platform of buildding at the river bank, installs collection mud tank 4 on dredging platform 1, including adding mud bucket 5, cylindricality screen cloth 6, water catch bowl 7 and collection mud groove 8, dredge pump 2 with conveyer pipe 3's end intercommunication, the head end of conveyer pipe 3 is located the top of charge door, dredge pump 2 during operation pass through conveyer pipe 3 pump feed in with the silt in the river course 5 with adding mud bucket. The bottom of the mud adding hopper 5 is communicated with one end of the cylindrical screen 6, and the mud entering the mud adding hopper 5 enters the cylindrical screen 6. The cylindrical screen 6 is internally provided with a conical rotating shaft 10, the conical rotating shaft 10 is connected with an output shaft of the motor 9, and the motor 9 drives the conical rotating shaft 10 to rotate when rotating. The end with the small diameter of the conical rotating shaft 10 is positioned below the mud adding hopper 5, the end with the large diameter is positioned above the mud collecting groove 8, the conical rotating shaft 10 is provided with a helical blade 11, and when the helical blade 11 rotates, mud is conveyed to the end with the large diameter of the conical rotating shaft 10. Because the big one end of toper pivot 10 diameter is little with the clearance of cylindricality screen cloth 6, so the space that silt place was compressed when carrying along cylindricality screen cloth 6, and the lateral wall of cylindricality screen cloth 6 is equipped with a plurality of infiltration hole, and silt is extruded and is filtered water out. The water separated from the sludge flows into the water collecting tank 7 at the bottom of the cylindrical screen 6 through the cylindrical screen 6, the filtered sludge has low water content, and the particles are dry and convenient to transport. The end of the cylindrical screen 6, which is located at the large diameter end of the conical rotating shaft 10, is provided with an opening for discharging sludge, and the sludge falls into the sludge collecting tank 8 through the opening for collection after water removal. A part of the water in the water collection tank 7 flows into the conveying pipe 3 through the return pipe, so that the concentration of the sludge is reduced, and the sludge is conveyed more smoothly in the conveying pipe 3. Most of the water in the water collection sump 7 is re-drained into the river channel through the drain pipe 13.

Specifically, a filter cover 14 is arranged at the water inlet of the return water pipe 12. After the filtering cover 14 is filtered, the silt content in the water is reduced, and the backflow pipe is not easy to block.

Example 2

Referring to fig. 1-2, the difference between this embodiment and embodiment 1 is that the return water pipe 12 is communicated with the delivery pipe 3 through a plurality of branch pipes 15, the branch pipes 15 are located at different heights of the delivery pipe 3, the delivery pipe 3 and the return water pipe 12 are provided with threaded joints 16, two ends of the branch pipes 15 are provided with threads, the branch pipes 15 are connected with the delivery pipe 3 and the return water pipe 12 through threads, and the threads at two ends of the branch pipes 15 are opposite in rotation direction. The water flowing into the return pipe flows into the delivery pipe 3 through the branch pipe 15 to reduce the concentration of the sludge, so that the sludge can be conveniently delivered. The two ends of the branch pipe 15 are provided with threads, the delivery pipe 3 and the return pipe are also provided with threaded connectors 16, the branch pipe 15 is connected with the delivery pipe 3 and the return water pipe 12 through threads, the thread screwing directions of the two ends of the branch pipe 15 are opposite, the two ends of the branch pipe 15 are aligned to the threaded connectors 16 and then the branch pipe 15 is rotated, the delivery pipe 3 and the connecting pipe can be synchronously screwed in, and connection is convenient.

Specifically, a filter screen 17 is provided in the threaded joint 16 of the feed pipe 3. The filter screen 17 prevents a large amount of sludge from flowing from the feed pipe 3 into the return pipe, and prevents the return pipe from being clogged.

Specifically, the filter mesh screen 17 is fixed on a movable ring 18, the movable ring 18 is slidably connected with the threaded joint 16, the movable ring 18 is provided with a positioning groove 20, and the end face of the branch pipe 15 is provided with positioning teeth 19 which are clamped into the positioning groove 20. The screen 17 is fixed to a movable ring 18 to facilitate placement of the screen 17 into the nipple 16. The movable ring 18 is connected with the threaded joint 16 in a sliding mode, under the pressure of the conveying pipe 3, the movable ring 18 moves outwards, the movable ring 18 is provided with a positioning groove 20, the end face of the branch pipe 15 is provided with positioning teeth 19 clamped into the positioning groove 20, the movable ring 18 moves outwards to enable the positioning teeth 19 to be clamped into the positioning groove 20, the branch pipe 15 is fixed, and the branch pipe 15 is prevented from loosening due to rotation.

Specifically, the threaded joint 16 is provided with a sliding groove 21 along the axial direction, the movable ring 18 is provided with a sliding block 22, and the sliding block 22 slides along the sliding groove 21. The movable ring 18 is slidable within the nipple 16 but is not able to rotate, ensuring that the movable ring 18 can grip the branch 15.

Specifically, the number of the sliding grooves 21 is at least two, and the sliding grooves 21 are circumferentially and uniformly distributed on the inner wall of the threaded connector 16. The number of the sliding grooves 21 is more than 2, so that the stress balance of the movable ring 18 is ensured.

The above description is only a preferred embodiment of the present invention, and should not be taken as limiting the invention, and any modifications, equivalent replacements, improvements, etc. made within the spirit and principle of the present invention should be included in the protection scope of the present invention.

Claims

1. A dredging device for dredging a river channel is characterized by comprising a dredging platform, a dredging pump, a conveying pipe and a dredging box, wherein the dredging platform is provided with the dredging box, the dredging box comprises a mud adding hopper, a cylindrical screen, a water collecting tank and a mud collecting tank, one end of the cylindrical screen is communicated with the bottom of the mud adding hopper, a tapered rotating shaft driven by a motor to rotate is arranged in the cylindrical screen, the tapered rotating shaft is provided with a spiral blade, one end with a small diameter of the tapered rotating shaft is positioned below the mud adding hopper, one end of the cylindrical screen, far away from the mud adding hopper, is communicated with the mud collecting tank, the bottom of the cylindrical screen is provided with the water collecting tank, the bottom of the water collecting tank is communicated with the side wall of the conveying pipe through a backflow pipe, the side wall of the water collecting tank is provided with a water discharging pipe, the water outlet is communicated with the river channel, and the dredging pump is communicated with the tail end of the conveying, the head end of the conveying pipe is positioned above the feed inlet.

2. The dredging apparatus for river channel dredging as claimed in claim 1, wherein the water inlet of the water return pipe is provided with a filtering cover.

3. The dredging apparatus for river channel dredging as claimed in claim 1, wherein the return water pipe is connected to the delivery pipe through a plurality of branch pipes, the branch pipes are located at different heights of the delivery pipe, the delivery pipe and the return water pipe are provided with screw joints, both ends of the branch pipes are provided with screw threads, the branch pipes are connected to the delivery pipe and the return water pipe through screw threads, and the screw threads at both ends of the branch pipes are opposite in rotation direction.

4. The dredging apparatus for river channel dredging as claimed in claim 3, wherein the screw joint of the conveying pipe is provided with a filter mesh screen.

5. The dredging apparatus for river channel dredging as claimed in claim 4, wherein the filtering mesh screen is fixed on a movable ring, the movable ring is slidably connected with the threaded joint, the movable ring is provided with a positioning groove, and the end surface of the branch pipe is provided with a positioning tooth which is clamped into the positioning groove.

6. Dredging device for river dredging, according to claim 5, characterized in that the threaded joint is provided with a sliding groove in axial direction, the movable ring being provided with a sliding block sliding along the sliding groove.

7. The dredging device for river channel dredging according to claim 6, wherein the number of the sliding chutes is at least two, and the sliding chutes are circumferentially and uniformly distributed on the inner wall of the threaded joint.