Siphon type urban lake desilting system

Abstract

The invention discloses a siphoning type urban lake desilting system, and relates to the technical field of desilting systems.The siphoning type urban lake desilting system comprises a desilting pipe, an air supply cylinder and a water supply cylinder, the air supply cylinder and the water supply cylinder are communicated with the desilting pipe, and the water supply cylinder is communicated with an inner cavity of a rotary water outlet cylinder through a lower water outlet; the upper end and the lower end of the rotary water outlet barrel are rotationally connected with the water supply barrel and the lower end of the dredging pipe through sealing bearings correspondingly, water outlets spirally arranged around the rotary water outlet barrel are evenly distributed in the slope of a funnel structure of the rotary water outlet barrel, and guide vanes are evenly distributed on the inner wall of the rotary water outlet barrel and correspond to the long edges of the water outlets; a spiral drill rod is arranged in the dredging pipe in the vertical axial direction of the dredging pipe. A conical drill bit is fixed to the bottom of the spiral drill rod. The spiral drill rod is arranged to be matched with high-speed rotation of the conical drill bit and multi-power matched dredging of high-pressure rotating water sprayed by the rotating water outlet cylinder, so that the sludge is loosened, the effect of stirring, crushing and solidifying the silt is enhanced, and the silt is lifted into the dredging pipe to assist suction and discharge.

Description

Technical Field

[0001] The present invention relates to the technical field of dredging systems, and in particular to a siphon-type urban lake dredging system. Background Art

[0002] Air-lift dredging is an environmental protection dredging device that uses compressed air and high-pressure water jets to lift underwater silt, sediment, etc. to the water surface. When compressed air and high-pressure water are injected through pipes, air, silt, and water form a gas-liquid-solid three-phase mixture. The density of the mixture is lower than that of the surrounding water body. Therefore, a pressure difference is formed inside and outside the pipe, pushing the mixture to rise along the pipe. It is commonly used for river and lake dredging. When the air-lift method of dredging uses high-pressure water jets to stir and break underwater deposits, as the dredging depth increases, there is a phenomenon that some sediment consolidates and is mixed with granular sand and gravel. The single jet power is limited, resulting in a lower suction and discharge dredging concentration and more difficult dredging. To solve the above problems, we provide a siphon-type urban lake dredging system. Summary of the Invention

[0003] The purpose of the present invention is to provide a siphon-type urban lake dredging system, which solves the problems that when the air-lift method of dredging uses high-pressure water jets to stir and break underwater deposits, as the dredging depth increases, there is a phenomenon that some sediment consolidates and is mixed with granular sand and gravel, the single jet power is limited, resulting in a lower suction and discharge dredging concentration and more difficult dredging, and further optimization is required.

[0004] To achieve the above purpose, the present invention provides the following technical solution: A siphon-type urban lake dredging system includes a dredging pipe, a gas supply cylinder and a water supply cylinder connected to the dredging pipe. A gas supply pipe is connected to the gas supply cylinder, and a water supply pipe is connected to the water supply cylinder. The upper output end of the dredging pipe is connected to a sediment output pipeline, and the lower input end of the dredging pipe is placed at the underwater dredging position. The water supply cylinder is connected to the inner cavity of the dredging pipe through an upper drain port, and the water supply cylinder is connected to the inner cavity of a rotating water outlet cylinder through a lower drain port. The rotating water outlet cylinder is annular. The upper and lower ends of the rotating water outlet cylinder are respectively rotatably connected to the water supply cylinder and the lower end of the dredging pipe through sealed bearings. The inclined surface of the funnel structure of the rotating water outlet cylinder is evenly provided with water outlet ports arranged in a spiral shape around the rotating water outlet cylinder. And the inner wall of the rotating water outlet cylinder is provided with evenly distributed guide vanes corresponding to the long edge position of the water outlet ports, and the evenly distributed guide vanes are arranged in a spiral shape. The guide vanes and the water outlet ports are both arranged and extended along the inclined direction of the funnel structure inclined surface of the rotating water outlet cylinder;

[0005] A spiral drill rod is arranged along the vertical axis of the dredging pipe itself. A conical drill bit is fixed at the bottom of the spiral drill rod. Drill teeth spiraling upward along the conical surface of the conical drill bit are provided on the surface of the conical drill bit. The spiral direction of the drill teeth is the same as that of the spiral drill rod, and the upper end of the drill teeth is connected to the spiral channel of the spiral drill rod. The spiral drill rod is installed on the mounting plate at the top of the dredging pipe through a bearing seat. A driving motor is provided on the mounting plate, and the driving motor drives the spiral drill rod to rotate around the axis of the dredging pipe through a gear mechanism.

[0006] Preferably, the sediment output pipeline is a flexible pipe, and the sediment output pipeline is hoisted by a strap.

[0007] Preferably, the spiral drill rod extends downward to the outside of the dredging pipe, and the conical drill bit is located below the dredging pipe.

[0008] Preferably, cutting edges I and II are respectively provided on the surface of the drill teeth of the conical drill bit along its spiral direction.

[0009] Preferably, the lower end input of the dredging pipe is flared.

[0010] Preferably, the water outlet and the guide vanes extend radially around the center of the rotating water outlet cylinder.

[0011] Preferably, the water outlet is strip-shaped.

[0012] Preferably, the upper water outlet and the lower water outlet are distributed in an annular array around the center of the water supply cylinder.

[0013] The present invention has the following beneficial effects:

[0014] Through the arrangement of the spiral drill rod, the conical drill bit rotating at high speed, and the high-pressure rotating water sprayed by the rotating water outlet cylinder, the present invention dredges sediment with multiple power combinations. The high-pressure spray impacts and breaks up the compacted sediment, the rotating water outlet cylinder rotates to stir the surrounding sediment to enhance the disturbance, and the spiral drill rod cooperates with the conical drill bit to enhance the crushing and lifting, achieving the effect of loosening the sediment, enhancing the stirring and crushing of the consolidated sediment, and lifting the sediment into the dredging pipe to assist in suction and discharge. It can efficiently remove complex and stubborn sediments, significantly improve the dredging effect, and the overall equipment is flexible and can be applied to fields such as environmental protection and urban operation and maintenance. BRIEF DESCRIPTION OF THE DRAWINGS

[0015] Figure 1 is the front view of the present invention;

[0016] Figure 2 is the perspective view of the present invention;

[0017] Figure 3 is the internal structure display diagram of the dredging pipe and the rotating water outlet cylinder of the present invention;

[0018] Figure 4Schematic diagram of the conical drill bit structure of the present invention;

[0019] Figure 5 Top view of the rotating water outlet cylinder of the present invention;

[0020] Figure 6 For the present invention Figure 3 Enlarged view of the structure at position A in the present invention.

[0021] In the figure: 1, silt cleaning pipe; 2, air supply cylinder; 3, water supply cylinder; 301, upper drain outlet; 302, lower drain outlet; 4, air supply pipe; 5, water supply pipe; 6, sediment output pipeline; 7, rotating water outlet cylinder; 701, water outlet; 702, guide vane; 8, sealing bearing; 9, spiral drill rod; 10, conical drill bit; 1001, drill teeth; 11, bearing seat; 12, mounting plate; 13, driving motor; 14, gear mechanism; 15, strap. Specific embodiments

[0022] Next, the technical solutions in the embodiments of the present invention will be clearly and completely described in conjunction with the accompanying drawings in the embodiments of the present invention. Obviously, the described embodiments are only a part of the embodiments of the present invention, rather than all the embodiments. Based on the embodiments of the present invention, all other embodiments obtained by those of ordinary skill in the art without creative efforts shall fall within the protection scope of the present invention.

[0023] As Figures 1-6 shown, the present invention provides a technical solution: a siphon-type urban lake silt cleaning system, including a silt cleaning pipe 1 and an air supply cylinder 2 and a water supply cylinder 3 connected to the silt cleaning pipe 1. The silt cleaning pipe 1 is placed in water, the lower input end of the silt cleaning pipe 1 is placed at the underwater silt cleaning position, the flared lower input end of the silt cleaning pipe 1 is located in the underwater silt layer, the air supply cylinder 2 is connected with an air supply pipe 4 to access compressed air, the water supply cylinder 3 is connected with a water supply pipe 5 to access high-pressure water, the upper output end of the silt cleaning pipe 1 is connected to a sediment output pipeline 6. The sediment output pipeline 6 is a flexible pipe, and the sediment output pipeline 6 is hoisted by a strap 15 to buffer the pressure in the sediment output pipeline 6. The sediment output pipeline 6 sends the exported silt into a mud purification device. The water supply cylinder 3 is connected to the lumen of the silt cleaning pipe 1 through the upper drain outlet 301 to input high-pressure water into the lumen of the silt cleaning pipe 1, and the water supply cylinder 3 is connected to the inner cavity of the rotating water outlet cylinder 7 through the lower drain outlet 302 to input high-pressure water into the rotating water outlet cylinder 7. The upper drain outlet 301 and the lower drain outlet 302 are arranged in an annular array around the center of the water supply cylinder 3;

[0024] The rotating water outlet cylinder 7 is annular. The upper and lower ends of the rotating water outlet cylinder 7 are respectively rotatably connected to the water supply cylinder 3 and the lower end of the dredging pipe 1 through sealed bearings 8. The inclined surface of the funnel structure of the rotating water outlet cylinder 7 is evenly provided with water outlet ports 701 arranged in a spiral shape around the rotating water outlet cylinder 7. Each individual water outlet port 701 is strip-shaped, and guide vanes 702 evenly distributed are arranged along the long edge position of the inner wall of the rotating water outlet cylinder 7 corresponding to the water outlet ports 701, and the evenly distributed guide vanes 702 are arranged in a spiral shape. Both the guide vanes 702 and the water outlet ports 701 are arranged and extend along the inclined direction of the funnel structure inclined surface of the rotating water outlet cylinder 7. The water outlet ports 701 and the guide vanes 702 extend radially around the center of the rotating water outlet cylinder 7, and the overall layout has a regular winding shape to achieve flow guiding and pressure boosting, thereby driving the rotation of the rotating water outlet cylinder 7. Under the driving force of the high-pressure water flow, the rotation power of the rotating water outlet cylinder 7 is provided through the water outlet port 701 structure and the guide vane 702 structure, so as to obtain a rotating high-pressure water to stir the silt;

[0025] A spiral drill rod 9 is arranged along the vertical axis of the dredging pipe 1. The spiral drill rod 9 extends downward to the outside of the dredging pipe 1. A conical drill bit 10 is fixed at the bottom of the spiral drill rod 9. The conical drill bit 10 is located below the dredging pipe 1. The surface of the conical drill bit 10 is provided with drill teeth 1001 spirally rising along the conical surface of the conical drill bit 10. The surfaces of the drill teeth 1001 of the conical drill bit 10 are respectively provided with a first cutting edge and a second cutting edge along their spiral directions. The double cutting edges have high crushing efficiency and good effect. The spiral direction of the drill teeth 1001 is the same as the spiral direction of the spiral drill rod 9 and is used to lift the silt upward, and the upper end of the drill teeth 1001 is connected to the spiral channel of the spiral drill rod 9 for lifting the silt upward. The spiral drill rod 9 is installed on the mounting plate 12 at the top of the dredging pipe 1 through a bearing seat 11. A driving motor 13 is arranged on the mounting plate 12. The driving motor 13 drives the spiral drill rod 9 to rotate around the axis of the dredging pipe 1 through a gear mechanism 14, so as to loosen the silt, enhance the effect of stirring and crushing the consolidated sediment, and lift the sediment into the dredging pipe 1 to assist in suction and discharge, efficiently remove complex and stubborn sediments, significantly improve the dredging effect, and the overall equipment is flexible and can be applied to fields such as environmental protection and urban operation and maintenance.

[0026] It should be noted that in this article, terms such as "including", "comprising" or any other variant thereof are intended to cover non-exclusive inclusion, so that a process, method, article or device including a series of elements not only includes those elements but also includes other elements not expressly listed, or further includes elements inherent to such process, method, article or device.

[0027] Although embodiments of the present invention have been shown and described, it will be understood by those of ordinary skill in the art that various changes, modifications, substitutions and variations can be made to these embodiments without departing from the principles and spirit of the present invention, and the scope of the present invention is defined by the appended claims and their equivalents.

Claims

1. A siphon type urban lake dredging system, comprising a dredging pipe (1), an air supply cylinder (2) and a water supply cylinder (3) which are connected to the dredging pipe (1). An air supply pipe (4) is connected to the air supply cylinder (2), and a water supply pipe (5) is connected to the water supply cylinder (3). The upper output end of the dredging pipe (1) is connected to a sediment output pipeline (6), and the lower input end of the dredging pipe (1) is placed at the underwater dredging position. It is characterized in that: The water supply cylinder (3) is connected to the lumen of the dredging pipe (1) through the upper drain port (301). The water supply cylinder (3) is connected to the inner cavity of the rotary water outlet cylinder (7) through the lower drain port (302). The rotary water outlet cylinder (7) is annular. The upper and lower ends of the rotary water outlet cylinder (7) are respectively rotatably connected to the lower end of the water supply cylinder (3) and the dredging pipe (1) through sealing bearings (8). The inclined surface of the funnel structure of the rotary water outlet cylinder (7) is evenly provided with water outlet ports (701) arranged in a spiral shape around the rotary water outlet cylinder (7). And the inner wall of the rotary water outlet cylinder (7) is provided with evenly distributed guide vanes (702) along the long edge position corresponding to the water outlet ports (701). And the evenly distributed guide vanes (702) are arranged in a spiral shape. The guide vanes (702) and the water outlet ports (701) are both arranged and extended along the inclined direction of the funnel structure inclined surface of the rotary water outlet cylinder (7). A spiral drill rod (9) is arranged along the vertical axis of the dredging pipe (1). A conical drill bit (10) is fixed at the bottom of the spiral drill rod (9). The surface of the conical drill bit (10) is provided with drill teeth (1001) spirally upward along the conical surface of the conical drill bit (10). The spiral direction of the drill teeth (1001) is the same as the spiral direction of the spiral drill rod (9). And the upper end of the drill teeth (1001) is connected to the spiral channel of the spiral drill rod (9). The spiral drill rod (9) is installed on the mounting plate (12) at the top of the dredging pipe (1) through a bearing seat (11). A driving motor (13) is provided on the mounting plate (12). The driving motor (13) drives the spiral drill rod (9) to rotate around the axis of the dredging pipe (1) through a gear mechanism (14).

2. The siphon type urban lake dredging system according to claim 1, characterized in that: The sediment output pipeline (6) is a flexible pipe and is hoisted by a strap (15).

3. A siphon-type urban lake dredging system according to claim 1, characterized in that: The spiral drill rod (9) extends downward to the outside of the dredging pipe (1), and the conical drill bit (10) is located below the dredging pipe (1).

4. A siphon-type urban lake dredging system according to claim 1, characterized in that: The surface of the drill teeth (1001) of the conical drill bit (10) is respectively provided with a first cutting edge and a second cutting edge along its spiral direction.

5. A siphon-type urban lake dredging system according to claim 1, characterized in that: The lower end input of the dredging pipe (1) is flared.

6. The siphon type urban lake dredging system according to claim 1, characterized in that: The water outlet ports (701) and the guide vanes (702) extend radially around the center of the rotary water outlet cylinder (7).

7. A siphon-type urban lake dredging system according to claim 1, characterized in that: The water outlet ports (701) are strip-shaped.

8. The siphon type urban lake dredging system according to claim 1, characterized in that: The upper drain port (301) and the lower drain port (302) are distributed in an annular array around the center of the water supply cylinder (3).

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