A river pollution sediment suction device and a light urban river pollution sediment suction system

Abstract

The invention discloses a device for sucking polluted sediment in a river channel and a light-duty system for sucking polluted sediment in a city river channel, comprising a hollow drill rod, a drill bit and an anti-pollution cover; the anti-pollution cover adopts an umbrella-shaped structure, the hollow drill rod is installed on a light-duty drilling rig, the top of the shaft rod of the anti-pollution cover is connected to the hollow drill rod, and the bottom is pre-connected with the drill bit by thread, leaving a thread margin, the hollow drill rod, the shaft rod of the anti-pollution cover and the inside of the drill bit are connected to form a channel, when the drill bit is inserted into the sediment, the hollow drill rod is driven to drill, so that the drill bit and the shaft rod of the anti-pollution cover are tightly threadedly connected, and the top of the drill bit drives the slip ring to move upward to open the anti-pollution cover; then the clean water pump is started to supply river water into the hollow drill rod, the river water flushes and dilutes the sediment through the filter holes of the drill bit, and the sludge is cut and stirred as the drill bit rotates; then the mud pump is started to suck the disturbed sludge through the filter holes of the drill bit, the shaft rod of the anti-pollution cover and the hollow drill rod and enter the mud storage bin.

Description

Technical Field

[0001] The invention belongs to the technical field of river channel sludge treatment, and in particular relates to a river channel polluted bottom sludge suction device and a light urban river channel polluted bottom sludge suction system. Background Art

[0002] As the infrastructure of municipal management, urban rivers are not only important channels for urban flood control and drainage, but also an important yardstick of urban ecological environment, and also greenways and landscapes of cities. At present, the management of urban rivers cannot keep up with social and economic development, and the planning and management lag behind, resulting in deep silt, black water quality and poor environment in urban rivers. In particular, the "black and smelly water bodies" caused by polluted sediments in urban rivers have seriously affected the livable environment and the ecological civilization image of the city. With the high attention paid to ecological civilization and water environment improvement across the country, the management of polluted sediments in urban rivers cannot be delayed. Summary of the invention

[0003] The purpose of the present invention is to overcome the deficiencies of the prior art and to provide a river channel polluted sediment suction device and a light urban river channel polluted sediment suction system.

[0004] The present invention is achieved through the following technical solutions:

[0005] A device for sucking polluted riverbed mud, comprising a hollow drill rod, a drill bit and an anti-fouling cover;

[0006] The anti-fouling cover comprises a shaft, an umbrella cover, a slip ring, an umbrella frame and a top mounting ring, wherein the top mounting ring is rotatably mounted on the shaft, the umbrella cover is mounted on the umbrella frame, the umbrella cover is supported by the umbrella frame, and the top of the umbrella cover is connected to the top mounting ring, the top of the umbrella frame is hinged to the top mounting ring, the driving rod of the umbrella frame is hinged to the slip ring, the slip ring is movably sleeved on the shaft, and when the slip ring is driven to slide upward along the shaft, the slip ring drives the umbrella frame to expand, thereby opening the umbrella cover;

[0007] The bottom of the hollow drill rod and the top of the shaft of the anti-pollution cover are connected by threads, and the shaft of the anti-pollution cover has a hollow channel inside, which is connected with the inside of the hollow drill rod;

[0008] The drill bit and the bottom end of the shaft of the anti-pollution cover are connected by threads, the drill bit is provided with blades, and a hollow channel is provided inside the drill bit, so as to achieve internal communication with the shaft of the anti-pollution cover and the hollow drill rod to form a channel; the drill bit is also provided with a plurality of filter holes, which are connected with the hollow channel inside the drill bit.

[0009] In the above technical solution, the umbrella frame is composed of multiple supporting keels and multiple driving rods. The supporting keels are used to support the umbrella cover. The top of the supporting keels is hinged on the top mounting ring. The outer end of the driving rod is hinged to the supporting keel, and the inner end of the driving rod is hinged to the slip ring. When the slip ring is driven to slide upward, the slip ring drives the driving rod to open the supporting keel, thereby opening the umbrella cover.

[0010] In the above technical solution, the diameter of the filter holes on the drill bit is 6mm-8mm and arranged in a plum blossom shape; the flange radius of the blades on the drill bit is 15cm-20cm.

[0011] In the above technical solution, the coverage radius of the anti-pollution cover after being expanded is 1m-1.5m.

[0012] In the above technical solution, the length of the threaded section at the bottom of the shaft of the anti-pollution cover is 20cm-30cm, so that when the shaft is connected to the drill bit, the driving slip ring at the top of the drill bit moves upward to open the anti-pollution cover.

[0013] In the above technical solution, a joint for connecting the suction pipes of the clean water pump and the mud pump is provided at the top of the hollow drill rod; the joint is connected to the clean water pump and the mud pump during operation.

[0014] A light-duty urban river pollution sediment suction system, comprising the above-mentioned river pollution sediment suction device and a dredging vessel, wherein the dredging vessel is equipped with a sludge storage bin, a light-duty drilling rig, a slurry pump and a clean water pump;

[0015] The light drilling rig is used to drive the hollow drill rod of the river pollution bottom mud suction device; the clean water pump is used to connect with the hollow drill rod to introduce clean water into the river pollution bottom mud suction device; the mud pump is used to connect with the hollow drill rod to suck mud from the river pollution bottom mud suction device; the mud storage bin is connected with the mud pump outlet to store the mud discharged by the mud pump.

[0016] The operation method of the above-mentioned light urban river pollution sediment suction system is as follows:

[0017] Step 1: Artificially probe the depth of the polluted mud surface in the mining area;

[0018] Step 2: Install the hollow drill rod on the light drilling rig, tightly thread the bottom of the hollow drill rod and the shaft of the anti-pollution cover, and pre-thread the bottom of the shaft of the anti-pollution cover and the drill bit, leaving thread margin;

[0019] Step 3: Start the light drilling rig, move the hollow drill rod downward, insert the drill bit into the bottom mud, and let the anti-fouling cover reach the mud surface;

[0020] Step 4: The light drilling rig drives the hollow drill rod to drill, so that the drill bit and the shaft of the anti-pollution cover are tightly threaded. During the connection process, the distance between the drill bit and the anti-pollution cover gradually decreases, so that the driving slip ring on the top of the drill bit moves upward to open the anti-pollution cover;

[0021] Step 5: Start the clean water pump and supply river water into the hollow drill pipe. The river water will flush and dilute the bottom mud through the filter holes of the drill bit, and the sludge will be cut and stirred as the drill bit rotates.

[0022] Step 6: Start the mud pump to suck the disturbed sludge through the filter holes of the drill bit, the shaft of the anti-fouling cover, and the hollow drill rod into the mud storage bin.

[0023] The advantages and beneficial effects of the present invention are:

[0024] (1) The present invention proposes for the first time a lightweight device suitable for removing polluted sediment from urban rivers, which can effectively complete the cleaning of sediments polluted at various depths. The device is easy to operate and has high working efficiency.

[0025] (2) The present invention combines the structure and working principle of the drilling rig and improves some of its components. The improved drill bit combined with a clean water pump can better complete the flushing, cutting and stirring effects of contaminated bottom mud. Under the suction action of the mud pump, the disturbed mud can smoothly pass through the filter holes into the mud storage bin, thereby achieving the purpose of river cleaning.

[0026] (3) The present invention adopts an anti-pollution cover structure, which can effectively prevent the mud from causing secondary pollution to the river channel during the process of scouring by the clean water pump and cutting and stirring of the bottom mud by the drill bit. The anti-pollution cover automatically opens during the rotation of the drill rod and does not require other active driving devices. The structure is simple and light, and the maneuverability is strong. BRIEF DESCRIPTION OF THE DRAWINGS

[0027] Attached Figure 1 : A schematic structural diagram of a device for extracting polluted sediment from a river channel according to the present invention.

[0028] Attached Figure 2 : The structural representation of the anti-pollution cover among the present invention.

[0029] Attached Figure 3 : A schematic structural diagram of the drill bit of the present invention.

[0030] Attached Figure 4 : A schematic structural diagram of a light-duty urban river pollution sediment suction system according to the present invention.

[0031] in:

[0032] 1: hollow drill rod, 2: drill bit, 3: anti-fouling cover, 4: light drilling rig, 5: clean water pump, 6: mud pump, 7: mud storage bin, 2-1: blade, 2-2: filter hole, 3-1: shaft rod, 3-2: umbrella cover, 3-3: slip ring, 3-4: umbrella frame, 3-5: top mounting ring.

[0033] For ordinary technicians in this field, other relevant drawings can be obtained based on the above drawings without any creative work. DETAILED DESCRIPTION

[0034] In order to enable those skilled in the art to better understand the technical solution of the present invention, the technical solution of the present invention is further described below in conjunction with specific embodiments.

[0035] Embodiment 1

[0036] A device for sucking polluted sediment from a river channel comprises a hollow drill rod 1, a drill bit 2 and an anti-pollution cover 3.

[0037] The anti-fouling cover 3 includes a shaft 3-1, an umbrella cover 3-2, a slip ring 3-3, an umbrella frame 3-4 and a top mounting ring 3-5. The top mounting ring 3-5 is rotatably mounted on the shaft 3-1. The umbrella cover 3-2 is mounted on the umbrella frame 3-4. The umbrella cover is supported by the umbrella frame, and the top of the umbrella cover is connected to the top mounting ring. The top of the umbrella frame is hinged to the top mounting ring 3-5. The driving rod of the umbrella frame is hinged to the slip ring 3-3. The slip ring is movably mounted on the shaft. When the slip ring is driven to slide upward along the shaft, the slip ring drives the umbrella frame to open, thereby opening the umbrella cover.

[0038] Specifically, the umbrella frame 3-4 is composed of a plurality of supporting keels 3-41 and a plurality of driving rods 3-42. The supporting keels are used to support the umbrella cover. The top end of the supporting keel 3-41 is hinged on the top mounting ring 3-5. The outer end of the driving rod 3-42 is hinged to the supporting keel, and the inner end of the driving rod is hinged to the slip ring 3-3. When the slip ring is driven to slide upward, the slip ring drives the driving rod to open the supporting keel, thereby opening the umbrella cover.

[0039] The bottom of the hollow drill rod 1 and the top of the shaft rod 3 - 1 of the anti-pollution cover are connected by threads. The shaft rod of the anti-pollution cover is also a hollow structure with a hollow channel inside, which can be connected to the inside of the hollow drill rod.

[0040] The drill bit 2 and the bottom end of the shaft rod 3-1 of the anti-pollution cover are connected by threads, and a blade 2-1 is arranged on the drill bit 2. A hollow channel is arranged inside the drill bit, so as to achieve communication with the inside of the shaft rod of the anti-pollution cover and the inside of the hollow drill rod to form a channel; a plurality of filter holes 2-2 are also arranged on the drill bit, and these filter holes are connected with the hollow channel inside the drill bit.

[0041] When in use, the drill bit 2 is pre-threadedly connected to the shaft of the anti-pollution cover, leaving a thread margin. When the drill bit is inserted into the riverbed mud, the hollow drill rod is driven to rotate, and the hollow drill rod drives the shaft of the anti-pollution cover to rotate (the hollow drill rod and the shaft of the anti-pollution cover are threadedly fastened and no margin is required). During the rotation of the shaft of the anti-pollution cover, it will continue to be threadedly connected to the drill bit, and the distance between the drill bit and the anti-pollution cover will gradually decrease, so that the drive slip ring on the top of the drill bit moves upward to open the anti-pollution cover.

[0042] Furthermore, the filter holes 2-2 on the drill bit have a diameter of 6mm-8mm and are arranged in a plum blossom shape; the flange radius of the blades on the drill bit is 15cm-20cm.

[0043] Furthermore, the coverage radius of the anti-fouling cover 3 after being expanded is 1m-1.5m.

[0044] Furthermore, the length of the threaded section at the bottom of the shaft of the anti-pollution cover is 20cm-30cm, so that when the shaft 3-1 is connected to the drill bit 2, the drive slip ring 3-3 at the top of the drill bit moves upward to open the anti-pollution cover.

[0045] Furthermore, a joint for connecting the suction pipes of the clean water pump and the mud pump is provided at the top of the hollow drill rod 1; the joint is connected to the clean water pump and the mud pump during operation.

[0046] Embodiment 2

[0047] A light urban river polluted sediment suction system comprises the river polluted sediment suction device described in Example 1 and a dredging vessel, wherein the dredging vessel is equipped with a light drilling rig 4, a clean water pump 5, a mud pump 6 and a mud storage bin 7.

[0048] The light drilling rig 4 is arranged at the bow of the dredging ship and is used to drive the hollow drilling rod of the river pollution bottom mud suction device.

[0049] The clean water pump 5 is used to be connected with the hollow drill rod to introduce clean water into the river polluted sediment suction device, and the clean water comes from the river water.

[0050] The mud pump 6 is used to be connected with the hollow drill pipe to suck mud from the river pollution bottom mud suction device.

[0051] The mud storage bin 7 is connected to the mud outlet of the mud pump 6 and is used to store the mud discharged by the mud pump.

[0052] After the dredging ship arrives at the river channel dredging area, the mud surface is manually sounded; the hollow drill rod 1 is installed on the light drilling rig 4 and is threadedly connected with the shaft rod of the anti-pollution cover 3; the shaft rod of the drill bit 2 is pre-threadedly connected with the anti-pollution cover 3, leaving a thread margin; then the light drilling rig is started, the hollow drill rod is moved down, the drill bit is inserted into the bottom mud, and the anti-pollution cover reaches the mud surface; the light drilling rig drives the hollow drill rod to drill, so that the drill bit is tightly threadedly connected with the shaft rod of the anti-pollution cover. During the connection process, the drill bit and the anti-pollution cover The distance between the two gradually decreases, so that the driving slip ring on the top of the drill bit moves upward to open the anti-pollution cover; then the clean water pump 5 is started to supply river water into the hollow drill pipe, and the river water flushes and dilutes the bottom mud through the filter holes of the drill bit, and cuts and stirs the sludge as the drill bit rotates; then the mud pump is started to suck the disturbed sludge through the filter holes of the drill bit, the shaft of the anti-pollution cover, and the hollow drill pipe into the mud storage bin; after the suction is completed, the dredging ship is moved to the nearby area, and the above steps are repeated to suck the contaminated bottom mud.

[0053] For ease of explanation, spatial relative terms such as "upper", "lower", "left", "right" and the like are used in the embodiments to illustrate the relationship of one element or feature shown in the figure relative to another element or feature. It should be understood that, in addition to the orientation shown in the figure, the spatial terms are intended to include different orientations of the device in use or operation. For example, if the device in the figure is inverted, the element described as being "under" other elements or features will be positioned "on" other elements or features. Therefore, the exemplary term "under" can include both upper and lower orientations. The device can be positioned in other ways (rotated 90 degrees or in other orientations), and the spatial relative descriptions used here can be interpreted accordingly.

[0054] Furthermore, relational terms such as “first” and “second” and the like are merely used to distinguish one component from another having the same name, but do not necessarily require or imply any such actual relationship or order between these components.

[0055] The present invention is described above by way of example. It should be noted that, without departing from the core of the present invention, any simple deformation, modification or other equivalent replacement that can be made by those skilled in the art without inventive effort falls within the protection scope of the present invention.

Claims

1. A device for sucking polluted riverbed mud, characterized in that: Includes hollow drill rod, drill bit and anti-fouling cover; The anti-fouling cover comprises a shaft, an umbrella cover, a slip ring, an umbrella frame and a top mounting ring, wherein the top mounting ring is rotatably mounted on the shaft, the umbrella cover is mounted on the umbrella frame, the umbrella cover is supported by the umbrella frame, and the top of the umbrella cover is connected to the top mounting ring, the top of the umbrella frame is hinged to the top mounting ring, the driving rod of the umbrella frame is hinged to the slip ring, the slip ring is movably sleeved on the shaft, and when the slip ring is driven to slide upward along the shaft, the slip ring drives the umbrella frame to expand, thereby opening the umbrella cover; The bottom of the hollow drill rod and the top of the shaft of the anti-pollution cover are connected by threads, and the shaft of the anti-pollution cover has a hollow channel inside, which is connected with the inside of the hollow drill rod; The drill bit and the bottom end of the shaft rod of the anti-pollution cover are connected by threads, a blade is arranged on the drill bit, and a hollow channel is arranged inside the drill bit, so as to achieve internal communication with the shaft rod of the anti-pollution cover and the hollow drill rod to form a channel; a plurality of filter holes are also arranged on the drill bit, and these filter holes are connected with the hollow channel inside the drill bit; The umbrella frame is composed of multiple supporting keels and multiple driving rods. The supporting keels are used to support the umbrella cover. The top of the supporting keel is hinged on the top mounting ring. The outer end of the driving rod is hinged to the supporting keel, and the inner end of the driving rod is hinged to the sliding ring. When the sliding ring is driven to slide upward, the sliding ring drives the driving rod to open the supporting keel, thereby opening the umbrella cover. When the drill bit is inserted into the riverbed mud, the hollow drill rod is driven to rotate, and the hollow drill rod drives the anti-pollution cover shaft to rotate. During the rotation of the anti-pollution cover shaft, the anti-pollution cover shaft continues to be threadedly connected with the drill bit, and the distance between the drill bit and the anti-pollution cover gradually decreases, so that the driving slip ring on the top of the drill bit moves upward to open the anti-pollution cover; The coverage radius of the anti-pollution cover after it is expanded is 1m-1.5m.

2. The device for extracting polluted riverbed mud according to claim 1, characterized in that: The filter holes on the drill bit have a diameter of 6mm-8mm and are arranged in a plum blossom shape.

3. The device for extracting polluted riverbed mud according to claim 1, characterized in that: The flange radius of the blades on the drill bit is 15cm-20cm.

4. The device for extracting polluted riverbed mud according to claim 1, characterized in that: The length of the threaded section at the bottom of the shaft of the anti-pollution cover is 20cm-30cm, so that when the shaft is connected to the drill bit, the driving slip ring at the top of the drill bit moves upward to open the anti-pollution cover.

5. The device for extracting polluted riverbed mud according to claim 1, characterized in that: A joint for connecting the suction pipes of the clean water pump and the mud pump is arranged on the top of the hollow drill pipe; the joint is connected with the clean water pump and the mud pump during operation.

6. A light-duty urban river pollution sediment suction system, characterized by: It comprises the river channel polluted bottom mud suction device and a dredging vessel as claimed in claim 1, wherein the dredging vessel is equipped with a sludge storage bin, a light drilling rig, a slurry pump and a clean water pump; The light drilling rig is used to drive the hollow drill rod of the river pollution bottom mud suction device; the clean water pump is used to connect with the hollow drill rod to introduce clean water into the river pollution bottom mud suction device; the mud pump is used to connect with the hollow drill rod to suck mud from the river pollution bottom mud suction device; the mud storage bin is connected with the mud pump outlet to store the mud discharged by the mud pump.

7. The method for operating the light-duty urban river pollution sediment suction system according to claim 6, characterized in that: The following steps are involved: Step 1: Artificially probe the depth of the polluted mud surface in the mining area; Step 2: Install the hollow drill rod on the light drilling rig, tightly thread the bottom of the hollow drill rod and the shaft of the anti-pollution cover, and pre-thread the bottom of the shaft of the anti-pollution cover and the drill bit, leaving thread margin; Step 3: Start the light drilling rig, move the hollow drill rod downward, insert the drill bit into the bottom mud, and let the anti-fouling cover reach the mud surface; Step 4: The light drilling rig drives the hollow drill rod to drill, so that the drill bit and the shaft of the anti-pollution cover are tightly threaded. During the connection process, the distance between the drill bit and the anti-pollution cover gradually decreases, so that the driving slip ring on the top of the drill bit moves upward to open the anti-pollution cover; Step 5: Start the clean water pump and supply river water into the hollow drill pipe. The river water will flush and dilute the bottom mud through the filter holes of the drill bit, and the drill bit will rotate to cut and stir the sludge. Step 6: Start the mud pump to suck the disturbed sludge through the filter holes of the drill bit, the shaft of the anti-fouling cover, and the hollow drill rod into the mud storage bin.

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