Dredging device for ecological restoration of water conservancy river channel

Abstract

The invention belongs to the technical field of river channel desilting, and particularly relates to a water conservancy river channel ecological restoration desilting device which comprises a ship body, the ship body is provided with a collecting component, a separating component and a silt pumping component, the separating component is located above the collecting component, and the silt pumping component conveys a mixture of silt and waste in a river channel to the separating component; the collecting component comprises a collecting box, a partition plate is arranged in the collecting box and divides the collecting box into a sludge area and a waste area, the separating component comprises a conveying belt, the conveying belt is located above the collecting box, one end of the conveying belt is located above the sludge area, and the other end of the conveying belt is located above the waste area. A belt body of the conveying belt is of a hole net structure so that sludge can fall into the sludge area of the collecting box from the hole net structure, and waste is conveyed to the waste area of the collecting box through the conveying belt. Sludge can be separated from waste such as stones, plant rhizomes and household garbage, so that the sludge can be utilized.

Description

Technical Field

[0001] The invention belongs to the technical field of river channel dredging, and in particular relates to a water conservancy river channel ecological restoration and dredging device. Background Art

[0002] River dredging generally refers to the management of rivers, which is a water conservancy project. Through mechanical equipment, the silt deposited on the riverbed is blown and stirred into turbid water, which flows away with the river water, thus playing a role in dredging. River siltation has increasingly affected the normal functioning of flood control, drainage, irrigation, water supply, navigation and other functions. In order to restore the normal function of the river and promote the rapid and sustainable development of the economy and society, river dredging projects are carried out.

[0003] The traditional cleaning method is to block the river channel, then use a pumping device to pump out the river water, and then drive the dredging device into the river channel for dredging. However, this method will harm the ecosystem of the river channel. In order to avoid harming the ecosystem in the river channel, the two ends of the river channel will be blocked, and then the silt deposited on the riverbed will be cleaned by a dredging ship. The dredging ship is a hull that removes the silt on the bottom of the water. The hull is a floating body, and the hull is equipped with a dredging machine, a power device, etc. The dredging machine is driven by a power device to remove and suck the silt on the bottom of the water, and then the cleaned silt is loaded on the hull or transported by a transport ship. Since the silt contains rich organic matter and nutrients, adding it to the soil can improve soil fertility and crop yields and be reused. However, the silt often contains waste such as stones, plant roots and stems, and domestic garbage. The dredging machine cannot separate the silt from waste such as stones, plant roots and stems, and domestic garbage. The silt needs to be cleaned again, which is a large workload. Summary of the invention

[0004] In order to solve the above technical problems, the present invention provides a water conservancy river ecological restoration and dredging device, which can separate silt from waste products such as stones, plant roots and stems, and domestic garbage so as to utilize the silt.

[0005] The technical solution of the present invention includes a hull, on which are provided a collecting component, a separating component and a silt extraction component, the separating component is located above the collecting component, the silt extraction component transports the silt and waste mixture in the river channel to the separating component, the separating component separates the silt from the waste, the collecting component includes a collecting box, a partition is provided inside the collecting box, the collecting box is divided into a silt area and a waste area, the separating component includes a conveyor belt, the conveyor belt is located above the collecting box, one end of the conveyor belt is located above the silt area, and the other end of the conveyor belt is located above the waste area, the belt body of the conveyor belt is a mesh structure, so that the silt falls from the mesh structure into the silt area of ​​the collecting box, and the waste is transported to the waste area of ​​the collecting box via the conveyor belt.

[0006] Furthermore, it includes a spraying component, which is located above the separation component to wash away the sludge on the waste. The spraying device includes a spray head, a first water pump, an inlet pipe and an outlet pipe. One end of the inlet pipe extends into the river, and the other end of the inlet pipe is connected to the inlet end of the first water pump. The outlet end of the first water pump is connected to one end of the outlet pipe, and the other end of the outlet pipe is connected to the spray head. The spray head is located above the conveyor belt, and the spray head sprays water onto the sludge and waste mixture on the conveyor belt.

[0007] Furthermore, a scraper is provided below one end of the conveyor belt close to the waste area, and the scraper abuts against the bottom of the conveyor belt to separate the waste adhered to the conveyor belt from the conveyor belt.

[0008] Furthermore, a lifting device is provided on the hull, and the lifting device is connected to one end of the conveyor belt close to the waste area to drive one end of the conveyor belt to rise and fall, so that the conveyor belt is tilted.

[0009] Furthermore, a plurality of baffles are provided on the conveyor belt to prevent waste products from sliding downward when the conveyor belt is tilted.

[0010] Furthermore, the silt extraction component comprises a suction machine, which transports the silt and waste mixture in the river channel to the conveyor belt.

[0011] Furthermore, the end of the suction machine extending into the sludge is a hose.

[0012] Furthermore, a buffer guide groove is provided between the suction machine and the conveyor belt, and the buffer guide groove prevents the sludge and waste mixture conveyed by the suction machine from splashing on the conveyor belt.

[0013] Furthermore, a drainage hole is provided below the side wall of the sludge area of ​​the collecting box to drain the water in the sludge area.

[0014] Furthermore, the drainage hole is provided with a filter screen to prevent silt from flowing out of the drainage hole.

[0015] The technical solution provided by the embodiment of the present invention has the following advantages compared with the prior art: When it is necessary to remove the silt in the river channel, the hull is placed in the river channel, and then the silt and waste mixture at the bottom of the river channel is pumped onto the conveyor belt through the silt pumping component. Since the silt and river water are mixed with river water during extraction, the silt and river water are mixed into mud, and the mud passes through the mesh structure of the conveyor belt and falls into the silt area of ​​the collecting box. The waste stays on the conveyor belt, and then the conveyor belt transports the waste to the top of the waste area of ​​the collecting box. The waste falls into the waste area under the action of its own gravity. Compared with the prior art, the present invention can separate the silt and waste during silt extraction and collect them separately, so that the silt can be reused.

[0016] Other advantages, objectives and features of the present invention will be embodied in part through the following description, and in part will be understood by those skilled in the art through study and practice of the present invention. BRIEF DESCRIPTION OF THE DRAWINGS

[0017] In order to more clearly illustrate the embodiments of the present invention or the technical solutions in the prior art, the drawings required for use in the embodiments or the description of the prior art will be briefly introduced below. Obviously, the drawings described below are only some embodiments of the present invention. For ordinary technicians in this field, other drawings can be obtained based on these drawings without paying creative work.

[0018] Figure 1 It is a schematic diagram of the three-dimensional structure of one embodiment of the present invention; Figure 2 A front view of one embodiment of the present invention; Figure 3 A left side view of one embodiment of the present invention; Figure 4 for Figure 3 AA section view of the .

[0019] Reference numerals: 1. Collection box; 2. Silt area; 3. Waste area; 4. Partition; 5. Conveyor belt; 6. Hull; 7. Sprinkler head; 8. First water pump; 9. Water inlet pipe; 10. Water outlet pipe; 11. Scraper; 12. Lifting device; 13. Baffle; 14. Suction machine; 15. Buffer guide trough; 16. Drain hole. DETAILED DESCRIPTION

[0020] A specific implementation of the present invention is described in detail below in conjunction with the accompanying drawings, but it should be understood that the protection scope of the present invention is not limited by the specific implementation.

[0021] In the description of the present invention, it is to be understood that the terms “center”, “longitudinal”, “lateral”, “length”, “width”, “thickness”, “up”, “down”, “front”, “back”, “left”, “right”, “vertical”, “horizontal”, “top”, “bottom”, “inside”, “outside”, “axial”, “radial”, “circumferential”, etc., indicating orientations or positional relationships based on the orientations or positional relationships shown in the accompanying drawings, are only for the convenience of describing the technical solutions of the present invention and simplifying the description, and do not indicate or imply 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 a limitation on the present invention.

[0022] In the description of the embodiments of the present invention, unless otherwise specified, “plurality” means two or more.

[0023] like Figures 1 to 3 As shown, the present invention provides a desilting device for ecological restoration of a water conservancy river channel, comprising a hull 6, on which a collecting component, a separating component and a silt pumping component are provided, the separating component is located above the collecting component, the silt pumping component transports the silt and waste mixture in the river channel to the separating component, the separating component separates the silt from the waste, the collecting component comprises a collecting box 1, a partition 4 is provided inside the collecting box 1, and the collecting box 1 is divided into a silt area 2 and a waste area 3, the separating component comprises a conveyor belt 5, the conveyor belt 5 is located above the collecting box 1, one end of the conveyor belt 5 is located above the silt area 2, and the other end of the conveyor belt 5 is located above the waste area 3, the belt body of the conveyor belt 5 is a mesh structure, so that the silt falls from the mesh structure into the silt area 2 of the collecting box 1, and the waste is transported to the waste area 3 of the collecting box 1 via the conveyor belt 5.

[0024] When it is necessary to remove the silt in the river channel, the hull 6 is placed in the river channel, and then the silt and waste mixture at the bottom of the river channel is pumped onto the conveyor belt 5 through the silt pumping component. Since the silt and river water are mixed with river water during extraction, the silt and river water are mixed into mud. The mud will fall into the silt area 2 of the collecting box 1 through the mesh structure of the conveyor belt 5, and the waste will stay on the conveyor belt 5. Then the conveyor belt 5 transports the waste to the top of the waste area 3 of the collecting box 1, and the waste falls into the waste area 3 under the action of its own gravity. Compared with the prior art, the present invention can separate the silt and waste during silt pumping and collect them separately, so that the silt can be reused.

[0025] Optionally, in order to prevent waste from falling from both sides of the conveyor belt 5 into the mud area 2 of the collecting box 1, it is necessary to restrict the two sides of the conveyor belt 5. Protective plates can be set on both sides of the belt body along the conveying direction of the conveyor belt 5 to prevent waste from falling from both sides of the conveyor belt 5 into the mud area 2 of the collecting box 1.

[0026] Furthermore, the protective plate can be a mesh structure to facilitate the passage of sludge, thereby improving the separation efficiency of sludge and waste. Otherwise, the sludge in the mixture of sludge and waste needs to first penetrate and then pass through the mesh structure of the conveyor belt 5 and fall into the sludge area 2 of the collection box 1.

[0027] It can be understood that the conveyor belt 5 is driven by a motor at one end close to the silt extraction component.

[0028] In the embodiment provided by the present invention, a spray component is included, which is located above the separation component to wash away the sludge on the waste. The spray device includes a spray head 7, a first water pump 8, an inlet pipe 9 and an outlet pipe 10. One end of the inlet pipe 9 extends into the river, and the other end of the inlet pipe 9 is connected to the inlet end of the first water pump 8. The outlet end of the first water pump 8 is connected to one end of the outlet pipe 10, and the other end of the outlet pipe 10 is connected to the spray head 7. The spray head 7 is located above the conveyor belt 5, and the spray head 7 sprays water onto the sludge and waste mixture on the conveyor belt 5.

[0029] It can be understood that although the silt and river water form mud, the mud falls into the silt area 2 of the collection box 1 under the action of gravity, but there is still a small amount of silt attached to the waste and will enter the waste area 3 of the collection box 1 along with the waste. Therefore, the waste is rinsed by the spray head 7 to remove the silt on the waste. At the same time, the conveyor belt 5 can also be cleaned to prevent the silt from adhering to the conveyor belt 5 for a long time, causing corrosion to the conveyor belt 5 and reducing the service life of the conveyor belt 5.

[0030] It should be noted that the water inlet pipe 9 extends into the center of the river water to prevent debris on the surface of the river water from clogging the sprinkler head 7 and also to avoid extending into a position close to silt to draw out silt.

[0031] It can be understood that the spraying component directly utilizes river water without providing an additional water source.

[0032] In the embodiment provided by the present invention, a scraper 11 is provided below one end of the conveyor belt 5 close to the waste area 3 , and the scraper 11 abuts against the bottom of the conveyor belt 5 , so that the scraper 11 separates the waste adhered to the conveyor belt 5 from the conveyor belt 5 .

[0033] It can be understood that although a part of the waste falls into the waste area 3 of the collecting box 1 under the action of its own gravity, there may be a part of smaller waste adsorbed on the conveyor belt 5, which cannot fall by its own gravity and will continue to move with the conveyor belt 5, and even fall into the silt area 2 of the collecting box 1 during the movement. Therefore, a scraper 11 is provided at one end of the conveyor belt 5 close to the waste area 3 to scrape off the waste attached to the conveyor belt 5 and separate the waste from the conveyor belt 5.

[0034] In the embodiment provided by the present invention, a lifting device 12 is provided on the hull 6, and the lifting device 12 is connected to one end of the conveyor belt 5 close to the waste area 3 to drive one end of the conveyor belt 5 to rise and fall, so that the conveyor belt 5 is tilted.

[0035] It can be understood that the surface of the liquid has tension. If the conveyor belt 5 moves horizontally, a lot of mud will gather on the conveyor belt 5, which is easy to fall into the waste area 3 of the collection box 1 at the rotating position of the conveyor belt 5. The conveyor belt 5 is set to an inclined state, and the gravity of the mud is used to move downward along the transmission belt to overcome the tension of the liquid and avoid flowing into the waste area 3 of the collection box 1. It should be noted that in order to ensure that the mud can fully fall into the silt area 2, the rotation speed of the conveyor belt 5 is relatively slow.

[0036] In the embodiment provided by the present invention, a plurality of baffles 13 are provided on the conveyor belt 5 to prevent waste products from sliding downward when the conveyor belt 5 is tilted.

[0037] It is understandable that when the conveyor belt 5 is tilted, some larger waste products will roll down to the lower part of the conveyor belt 5 under the action of gravity. If not blocked, the waste products may stay on the conveyor belt 5 for a long time. Therefore, the baffle 13 is provided to prevent the waste products from rolling down.

[0038] Optionally, the baffle 13 is flexible so as to pass between the conveyor belt 5 and the scraper 11 .

[0039] Furthermore, the scraper 11 is a retractable structure to facilitate the passage of the baffle 13 .

[0040] In the embodiment provided by the present invention, the silt extraction component comprises a suction machine 14 , which transports the silt and waste mixture in the river channel to the conveyor belt 5 .

[0041] In the embodiment provided by the present invention, the end of the suction machine 14 extending into the sludge is a hose.

[0042] It can be understood that by setting it as a hose, the staff can better adjust the position of the suction machine 14 to suck the sludge, and avoid sucking the sludge at the same position for a long time.

[0043] In the embodiment provided by the present invention, a buffer guide groove 15 is provided between the suction machine 14 and the conveyor belt 5 , and the buffer guide groove 15 prevents the sludge and waste mixture transported by the suction machine 14 from splashing on the conveyor belt 5 .

[0044] It can be understood that the sludge and waste mixture output by the suction machine 14 has a certain impact force. If the suction machine 14 directly sprays the sludge and waste mixture onto the conveyor belt 5, it is easy to splash everywhere. Therefore, a buffer guide groove 15 is provided for transition to reduce the impact force of the sludge and waste mixture.

[0045] Specifically, the buffer guide groove 15 is set to the same width as the conveyor belt 5, and the outlet end of the suction machine 14 is smaller than the width of the buffer guide groove 15. When the suction machine 14 discharges the sludge and waste mixture into the buffer guide groove 15, the sludge and waste mixture will diffuse along the width direction of the buffer guide groove 15, thereby reducing the impact force of the sludge and waste mixture and further avoiding splashing of the sludge and waste mixture.

[0046] In the embodiment provided by the present invention, a drainage hole 16 is provided below the side wall of the sludge area 2 of the collecting box 1 to drain the water in the sludge area 2. The drainage hole 16 is provided with a filter to prevent the sludge from flowing out of the drainage hole 16.

[0047] It can be understood that since the mud contains a large amount of water, which occupies the internal space of the collecting box 1, and the secondary utilization of the sludge does not require so much water, the sludge and water in the mud need to be separated. Therefore, a drainage hole 16 is set at the bottom of the collecting box 1, and a filter is set in the drainage hole 16 to separate the water and the sludge, and the water flows out of the drainage hole 16 and returns to the river.

[0048] It should be noted that, in this article, the terms "include", "comprises" or any other variations thereof are intended to cover non-exclusive inclusion, so that a process, method, article or device including a series of elements includes not only those elements, but also other elements not explicitly listed, or also includes elements inherent to such process, method, article or device. In the absence of further restrictions, an element defined by the sentence "comprises a ..." does not exclude the existence of other identical elements in the process, method, article or device including the element.

[0049] Although the embodiments of the present invention have been disclosed above, they are not limited to the applications listed in the specification and the embodiments. It can be fully applied to various fields suitable for the present invention. For those familiar with the art, additional modifications can be easily realized. Therefore, without departing from the general concept defined by the claims and equivalent scope, the present invention is not limited to the specific details and the illustrations shown and described here.

Claims

1. A water conservancy river ecological restoration and dredging device, comprising a hull (6), characterized in that: The hull (6) is provided with a collecting component, a separating component and a silt extraction component, wherein the separating component is located above the collecting component, the silt extraction component transports the silt and waste mixture in the river channel to the separating component, and the separating component separates the silt and waste; The collecting component comprises a collecting box (1), wherein a partition (4) is provided inside the collecting box (1) to divide the collecting box (1) into a sludge area (2) and a waste area (3); The separation component comprises a conveyor belt (5), wherein the conveyor belt (5) is located above the collection box (1), one end of the conveyor belt (5) is located above the sludge area (2), and the other end of the conveyor belt (5) is located above the waste area (3), and the belt body of the conveyor belt (5) is a mesh structure, so that the sludge falls from the mesh structure into the sludge area (2) of the collection box (1), and the waste is transported to the waste area (3) of the collection box (1) via the conveyor belt (5).

2. A water conservancy river ecological restoration and dredging device as claimed in claim 1, characterized in that: It includes a spraying part, which is located above the separation part to wash away the sludge on the waste; The spraying device comprises a spray head (7), a first water pump (8), a water inlet pipe (9) and a water outlet pipe (10), one end of the water inlet pipe (9) extends into the river, the other end of the water inlet pipe (9) is connected to the water inlet end of the first water pump (8), the water outlet end of the first water pump (8) is connected to one end of the water outlet pipe (10), the other end of the water outlet pipe (10) is connected to the spray head (7), the spray head (7) is located above the conveyor belt (5), and the spray head (7) sprays water onto the sludge and waste mixture on the conveyor belt (5).

3. A water conservancy river ecological restoration and dredging device as claimed in claim 1, characterized in that: A scraper (11) is provided below one end of the conveyor belt (5) close to the waste area (3), and the scraper (11) abuts against the bottom of the conveyor belt (5). The scraper (11) is used to separate the waste adhered to the conveyor belt (5) from the conveyor belt (5).

4. A water conservancy river ecological restoration and dredging device as claimed in claim 1, characterized in that: The hull (6) is provided with a lifting device (12), and the lifting device (12) is connected to one end of the conveyor belt (5) close to the waste area (3) to drive one end of the conveyor belt (5) to rise and fall, thereby tilting the conveyor belt (5).

5. A water conservancy river ecological restoration and dredging device as claimed in claim 4, characterized in that: A plurality of baffles (13) are provided on the conveyor belt (5) to prevent waste products from sliding downward when the conveyor belt (5) is tilted.

6. A water conservancy river ecological restoration and dredging device as claimed in claim 1, characterized in that: The silt extraction component comprises a suction machine (14), and the suction machine (14) transports the silt and waste mixture in the river channel to the conveyor belt (5).

7. A water conservancy river ecological restoration and dredging device as claimed in claim 6, characterized in that: One end of the suction machine (14) extending into the sludge is a hose.

8. A water conservancy river ecological restoration and dredging device as claimed in claim 6, characterized in that: A buffer guide groove (15) is provided between the suction machine (14) and the conveyor belt (5), and the buffer guide groove (15) prevents the sludge and waste mixture transported by the suction machine (14) from splashing on the conveyor belt (5).

9. The water conservancy river ecological restoration and dredging device according to claim 1, characterized in that: A drainage hole (16) is provided below the side wall of the sludge area (2) of the collection box (1) to drain water from the sludge area (2).

10. A water conservancy river ecological restoration and dredging device as claimed in claim 9, characterized in that: The drainage hole (16) is provided with a filter screen to prevent silt from flowing out of the drainage hole (16).

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