Efficient sand blowing equipment for large sea reclamation engineering

Abstract

The utility model discloses efficient sand blowing equipment for large-scale sea reclamation engineering, which comprises a water supply pipeline mechanism, the water supply pipeline mechanism is arranged in a water source, a water outlet end of the water supply pipeline mechanism is connected with an overwater mixed flow pipeline, a sand supply funnel is arranged on the overwater mixed flow pipeline, and a water outlet of the overwater mixed flow pipeline is connected with a sand blowing mechanism. Further, the water supply pipeline mechanism comprises a water supply pipe and a water pump, the lower end of the water supply pipe extends into the seawater, the upper end of the water supply pipe is connected with the overwater mixed flow pipeline, and the water pump pumps the seawater through the water supply pipe and feeds the seawater into the overwater mixed flow pipeline. (1) sand can be directly unloaded to the funnel by adopting the belt ship, a water area does not need to be expropriated as a sand storage pit, and hydraulic reclamation pipelines are immersed pipes, so that the water area passing is not influenced; (2) the water flow of the active water supply system washes the funnel through the guide pipe and carries the machine-made sand to enter the dredge pump to prevent clogging; and (3) the capacity is high, the pumping capacity of machine-made sand is effectively realized by additionally arranging a water pump and a side pipe orifice, and the actually measured maximum sand blowing efficiency can reach 4760m < 3 > / h.

Description

Technical Field

[0001] The utility model relates to the technical field of dredging and filling construction equipment, in particular to a high-efficiency sand blowing equipment for large-scale land reclamation engineering. Background Art

[0002] Land reclamation refers to the act of converting the original sea area, lake area or river bank into land through artificial technical means. For coastal cities with more mountains and less land, land reclamation is a method that plays an important role in the development of limited urban space. Many large coastal cities, such as Tokyo, Hong Kong, Macau, Shenzhen, Dalian and Tianjin, have adopted this method to create flat land. In some large-scale land reclamation projects, the backfill materials of the project cannot be obtained by dredging near the backfill area. Generally, they are transported to the site from a remote end by belt boats. The existing sand filling construction ships and their processes mainly include sand pumping ship blowing construction, belt boat fixed-point sand throwing, land pushing construction, etc.

[0003] The use of small sand pumping ships to remotely transport sand cannot meet the project construction and production needs due to their limited spacing and construction capacity. On the other hand, affected by external environmental factors, some reclamation projects need to change the filler structure and use artificial sand instead of sea sand. Artificial sand is generally processed from abandoned building stones, with larger particle size and poor gradation matching. It has high requirements for the starting flow rate of hydraulic filling. The transportation capacity of existing sand pumping ships for transporting artificial sand is difficult to accurately estimate. Utility Model Content

[0004] The utility model aims at solving the problems existing in the prior art and provides a high-efficiency sand blowing device for large-scale land reclamation engineering.

[0005] In order to achieve the above objectives, the present invention is implemented through the following technical solutions:

[0006] A high-efficiency sand-blowing device for large-scale land reclamation projects comprises a water supply pipeline mechanism, wherein the water supply pipeline mechanism is arranged in a water source, a water outlet end of the water supply pipeline mechanism is connected to an above-water mixed flow pipeline, a sand supply funnel is arranged on the above-water mixed flow pipeline, and a water outlet of the above-water mixed flow pipeline is connected to the sand-blowing mechanism.

[0007] Furthermore, the water supply pipeline mechanism includes a water supply pipe and a water pump. The lower end of the water supply pipe extends into the seawater, and the upper end is connected to the mixed flow pipeline above water. The water pump draws seawater through the water supply pipe and sends the seawater into the mixed flow pipeline above water.

[0008] Furthermore, the water inlet of the above-water mixed flow pipeline is connected to the water supply pipe, and the water outlet is connected to the sand blowing mechanism. The mixed flow pipeline is provided with a control valve and a through hole. A sand supply funnel is arranged in the through hole. The sand supply funnel supplies sand to the above-water mixed flow pipeline through the through hole. The seawater and sand flow forward after merging at the through hole.

[0009] Furthermore, the sand blowing mechanism includes a speed-increasing pipe, the water inlet end of the speed-increasing pipe is connected to the mixed flow pipe above the water, the water outlet end is tilted downward and connected to the water inlet end of the conveying pipe, the water outlet end of the conveying pipe is connected to the shore blowing pipe, and a sand blowing pump is provided on the conveying pipe.

[0010] Furthermore, the sand supply funnel comprises a funnel body, the lower end of the conduit of the funnel body is inserted into the mixed flow pipe above water, a screening mechanism is provided inside the funnel body, and the screening mechanism and the funnel body are detachably connected.

[0011] Furthermore, the screening mechanism comprises a base, a top seat is arranged above the base, screening rods are arranged in a circular array between the top seat and the base, and an ultrasonic generator is also arranged at the upper end of the top seat.

[0012] Furthermore, the size of the top seat is smaller than the base, and the base, the top seat and the screening rod constitute a conical screening mechanism.

[0013] Furthermore, a disturbance mechanism is provided in the funnel body, and the disturbance mechanism includes a fixing part and a disturbance part, and the fixing part and the funnel body are fixedly connected.

[0014] Furthermore, the fixing part comprises an annular fixing frame, a connecting rod is provided on the outer wall of the annular fixing frame, and the connecting rod is connected to the inner wall of the funnel body.

[0015] Furthermore, the disturbance part includes a driving motor, the driving motor is connected to the disturbance arm, and the driving motor drives the disturbance arm to rotate.

[0016] Beneficial effects of the utility model:

[0017] (1) The sand can be unloaded directly into the funnel by a belt boat, without the need to requisition waters for sand storage pits. At the same time, the filling pipelines are all submerged pipes, which will not affect the passage of waters.

[0018] (2) The water flow of the active water supply system flushes the funnel through the conduit, carrying the machine-made sand into the mud pump to prevent clogging.

[0019] (3) High production capacity. By adding water pumps and side pipes, the pumping capacity of machine-made sand can be effectively realized. The maximum sand blowing efficiency can reach 4760m3 / h.

[0020] (4) Low construction and maintenance costs. The modified hull has a simple structure and strong operability. It does not require the installation of precision instruments and devices, has a low failure rate, and has low maintenance and construction costs. BRIEF DESCRIPTION OF THE DRAWINGS

[0021] Figure 1 This is a schematic diagram of the structure of the high-efficiency sand blowing equipment for large-scale land reclamation projects of the utility model;

[0022] Figure 2This is a structural schematic diagram of the sand supply funnel of the utility model;

[0023] Figure 3 It is a structural schematic diagram of the screening mechanism of the utility model;

[0024] Figure 4 It is a schematic diagram of the connection structure between the screening mechanism and the disturbance mechanism of the utility model;

[0025] Figure 5 It is a structural schematic diagram of the disturbance mechanism of the utility model.

[0026] In the figure: 1-water supply pipeline mechanism, 11-water supply pipe, 12-water pump, 2-water mixed flow pipeline, 3-sand supply funnel, 31-funnel body, 32-conduit, 321-base, 322-top seat, 323-screening rod, 324-ultrasonic generator, 33-screening mechanism, 4-sand blowing mechanism, 41-speed increasing pipeline, 42-transport pipeline, 43-shore blowing pipeline, 44-sand blowing pump, 5-control valve, 6-disturbance mechanism, 61-fixed part, 611-annular fixing frame, 612-connecting rod, 62-disturbance part, 621-driving mechanism, 622-disturbance arm. DETAILED DESCRIPTION

[0027] The technical solutions in the embodiments of the present invention will be described clearly and completely below in conjunction with the accompanying drawings in the embodiments of the present invention.

[0028] In the description of the present application, it should be noted that the terms "center", "upper", "lower", "left", "right", "vertical", "horizontal", "inner", "outer", etc., indicating the orientation or positional relationship, are based on the orientation or positional relationship shown in the drawings, and are only for the convenience of describing the present application and simplifying the description, rather than indicating or implying that the device or element referred to must have a specific orientation, be constructed and operated in a specific orientation, and therefore cannot be understood as limiting the present application. In addition, the terms "first", "second", and "third" are used for descriptive purposes only, and cannot be understood as indicating or implying relative importance.

[0029] Unless otherwise clearly specified and limited, the terms "installed", "connected", and "connected" should be understood in a broad sense, for example, it can be a fixed connection, a detachable connection, or an integral connection; it can be a mechanical connection or an electrical connection; it can be a direct connection or an indirect connection through an intermediate medium, or it can be the internal communication of two components. For ordinary technicians in this field, the specific meanings of the above terms in this application can be understood according to specific circumstances.

[0030] Example 1

[0031] Please refer to Figure 1The utility model provides a high-efficiency sand blowing equipment for large-scale land reclamation projects, including a water supply pipeline mechanism 1, which is arranged in a water source, and its water outlet is connected to an above-water mixed flow pipeline 2, a sand supply funnel 3 is arranged on the above-water mixed flow pipeline 2, and the water outlet of the above-water mixed flow pipeline 2 is connected to the sand blowing mechanism 4.

[0032] The water source is generally seawater at the sand source. The water supply pipeline mechanism 1 is set in the seawater and is used to extract seawater. It includes a water supply pipe 11 and a water pump 12. The lower end of the water supply pipe 11 extends into the seawater, and the upper end is connected to the mixed flow pipeline 2 above the water. The water pump 12 extracts seawater through the water supply pipe 11 and sends the seawater into the mixed flow pipeline 2 above the water.

[0033] The water inlet of the water mixed flow pipe 2 is connected to the water supply pipe 11, and the water outlet is connected to the sand blowing mechanism 4, and the water-sand mixture is sent to the sand blowing mechanism 4. The mixed flow pipe 2 is provided with a control valve 5, which is used to control the seawater flow rate to ensure that the sand entering the water mixed flow pipe 2 can move forward smoothly. The water mixed flow pipe 2 is provided with a through hole, and the sand supply funnel 3 is arranged in the through hole. The sand supply funnel 3 supplies sand to the water mixed flow pipe 2 through the through hole, and the seawater and sand flow forward after merging at the through hole.

[0034] The sand blowing mechanism 4 includes a speed-increasing pipe 41, the water inlet end of the speed-increasing pipe 41 is connected to the water mixed flow pipe 2, the water outlet end is tilted downward and connected to the water inlet end of the delivery pipe 42, the water outlet end of the delivery pipe 42 is connected to the shore blowing pipe 43, and a sand blowing pump 44 is provided on the delivery pipe 42. The sand-water mixture enters from the speed-increasing pipe 41, and under the action of the sand blowing pump 44, passes through the delivery pipe 42 and is blown out from the shore blowing pipe 43.

[0035] Please refer to Figure 1 and Figure 2 The sand supply funnel 3 includes a funnel body 31, and the lower end of the funnel body 31 is a conduit 32. The length of the conduit 32 is set according to actual needs, mainly considering the material discharge time to avoid blockage. The lower end of the conduit 32 is plugged and fixed in the water mixed flow pipeline 2, and the sand enters the conduit 32 from the funnel body 31 and is introduced into the water mixed flow pipeline 2 by the conduit 32.

[0036] Please refer to Figure 3A screening mechanism 33 is provided inside the funnel body 31, and the screening mechanism 33 and the funnel body 31 are detachably connected. The screening mechanism 33 is used to filter oversized sand and gravel to avoid pipe blockage. The screening mechanism 33 includes a base 321, a top seat 322 is provided above the base 321, and screening rods 323 are arranged in a circular array between the top seat 322 and the base 321, and the upper and lower ends of the screening rods 323 are respectively connected to the top seat 322 and the base 321. The spacing between adjacent screening rods 323 is set according to actual needs. The size of the top seat 322 is smaller than the base 321, and the base 321, the top seat 322, and the screening rod 323 constitute a conical screening mechanism 33.

[0037] An ultrasonic generator 324 is also provided at the upper end of the top seat 322. The ultrasonic generator 324 emits ultrasonic waves to vibrate the screening mechanism 33, thereby accelerating the screening speed and ensuring that the screening mechanism 33 can work smoothly.

[0038] Working principle:

[0039] During operation, sand is put into the sand supply hopper 3 by using a lifting device, and the water supply pipeline mechanism 1 draws seawater into the water mixed flow pipeline 2. The sand and seawater are mixed in the water mixed flow pipeline 2 and then flow into the speed increasing pipeline 41. Under the action of the sand blowing pump 44, the sand passes through the conveying pipeline 42 and is blown out from the shore blowing pipe 43.

[0040] Example 2

[0041] The difference between this embodiment and embodiment 1 is that:

[0042] Please refer to Figure 4 and Figure 5 The difference between this embodiment and embodiment 1 is that a disturbance mechanism 6 is provided in the funnel body 31, and the disturbance mechanism 6 includes a fixing part 61 and a disturbance part 62, and the fixing part 61 is fixedly connected to the funnel body 31. Specifically, the fixing part 61 includes an annular fixing frame 611, and a connecting rod 612 is provided on the outer wall of the annular fixing frame 611, and the connecting rod 612 is fixedly connected to the inner wall of the funnel body 31. The disturbance part 62 includes a driving motor 621, and the driving motor 621 is connected to a disturbance arm 622, and the driving motor 621 drives the disturbance arm 622 to rotate, and the disturbance arm 622 disturbs the sand and larger stones inside the funnel body 31 to reduce the occurrence of blockage. The disturbance arm 622 includes an arm body and a disturbance head arranged on the arm body. The disturbance head is circular, which can not only disturb larger stones, but also avoid being clamped and locked with stones.

[0043] The above contents are further detailed descriptions of the present invention in combination with specific preferred implementations, and the specific implementation of the present invention cannot be considered to be limited to these descriptions. For ordinary technicians in the technical field to which the present invention belongs, several simple deductions or substitutions can be made without departing from the concept of the present invention, which should be regarded as falling within the protection scope of the present invention.

Claims

1. A high-efficiency sand blowing equipment for large-scale land reclamation projects, characterized by: It comprises a water supply pipeline mechanism (1), the water supply pipeline mechanism (1) is arranged in a water source, the water outlet end of the water supply pipeline mechanism (1) is connected to an above-water mixed flow pipeline (2), a sand supply funnel (3) is arranged on the above-water mixed flow pipeline (2), and the water outlet of the above-water mixed flow pipeline (2) is connected to a sand blowing mechanism (4); The water supply pipeline mechanism (1) comprises a water supply pipe (11) and a water pump (12); the lower end of the water supply pipe (11) extends into the seawater, and the upper end is connected to the above-water mixed flow pipeline (2); the water pump (12) extracts seawater through the water supply pipe (11) and sends the seawater into the above-water mixed flow pipeline (2); The sand blowing mechanism (4) comprises a speed increasing pipeline (41), the water inlet end of the speed increasing pipeline (41) is connected to the water mixed flow pipeline (2), the water outlet end is inclined downward and connected to the water inlet end of the conveying pipeline (42), the water outlet end of the conveying pipeline (42) is connected to the shore blowing pipe (43), and a sand blowing pump (44) is provided on the conveying pipeline (42).

2. The high-efficiency sand blowing equipment for large-scale land reclamation engineering according to claim 1 is characterized in that: The water inlet of the above-water mixed flow pipeline (2) is connected to a water supply pipe (11), and the water outlet is connected to a sand blowing mechanism (4). The above-water mixed flow pipeline (2) is provided with a control valve (5) and a through hole. A sand supply funnel (3) is arranged in the through hole. The sand supply funnel (3) supplies sand to the above-water mixed flow pipeline (2) through the through hole. Seawater and sand merge at the through hole and then flow forward.

3. The high-efficiency sand blowing equipment for large-scale land reclamation engineering according to claim 1 is characterized in that: The sand supply funnel (3) comprises a funnel body (31), the lower end of the guide tube (32) of the funnel body (31) is inserted into the water mixed flow pipeline (2), a screening mechanism (33) is provided inside the funnel body (31), and the screening mechanism (33) and the funnel body (31) are detachably connected.

4. The high-efficiency sand blowing equipment for large-scale land reclamation engineering according to claim 3 is characterized by: The screening mechanism (33) comprises a base (321), a top seat (322) is arranged above the base (321), screening rods (323) are arranged in a circular array between the top seat (322) and the base (321), and an ultrasonic generator (324) is also arranged at the upper end of the top seat (322).

5. The high-efficiency sand blowing equipment for large-scale land reclamation engineering according to claim 4 is characterized in that: The size of the top seat (322) is smaller than that of the base (321), and the base (321), the top seat (322), and the screening rod (323) constitute a conical screening mechanism (33).

6. The high-efficiency sand blowing equipment for large-scale land reclamation engineering according to claim 3 is characterized by: The funnel body (31) is provided with a disturbance mechanism (6), the disturbance mechanism (6) comprising a fixing portion (61) and a disturbance portion (62), and the fixing portion (61) and the funnel body (31) are fixedly connected.

7. The high-efficiency sand blowing equipment for large-scale land reclamation engineering according to claim 6 is characterized by: The fixing portion (61) comprises an annular fixing frame (611), a connecting rod (612) is provided on the outer wall of the annular fixing frame (611), and the connecting rod (612) is connected to the inner wall of the funnel body (31).

8. The high-efficiency sand blowing equipment for large-scale land reclamation engineering according to claim 6 is characterized by: The disturbance part (62) comprises a driving motor (621), the driving motor (621) is connected to a disturbance arm (622), and the driving motor (621) drives the disturbance arm (622) to rotate.

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