Submerged plant litter separation device

Abstract

The invention discloses a submerged plant litter separation device, which relates to the technical field of water ecosystems, and comprises a first screening part, a second screening part, a separation barrel, a stirring device and a washing spray gun which are arranged from top to bottom, the circumferential edges of the first screening part and the second screening part are connected to the supporting frame, the first screening part and the second screening part incline downwards from the circumferential edges to the middle, and a first discharging opening is formed in the bottom end of the second screening part; when the submerged plant litter is separated, firstly, large-particle-size stones in a sample are screened out by adopting a washing spray gun, then, silt in the sample on the second screening piece is washed out through screening holes in the second screening piece by adopting the washing spray gun, and then, the remaining sample on the second screening piece is washed into a separation barrel; after stirring, litters are suspended in water, impurities such as fine gravels and shells sink to the water bottom, and the device does not need to manually pick the impurities such as stones and shells, so that the separation efficiency is improved, and the purity of a sample obtained by separation is improved.

Description

Technical Field

[0001] This invention relates to the field of aquatic ecosystem technology, and in particular to a device for separating submerged plant litter. Background Technology

[0002] Submerged plant litter is an important source of organic matter in aquatic ecosystems. It refers to the debris formed after the leaves, stems, roots, and other organs of submerged plants (such as Vallisneria natans, Hydrilla verticillata, and Myriophyllum spicatum) naturally fall off or die after their growth cycle ends (such as withering or aging). It plays a key role in the water body's material cycle, energy flow, and ecological balance. The traditional method of litter separation is to place the collected litter on a sieve, repeatedly wash it to remove bottom mud, and then manually pick out stones. The manual sorting process is very time-consuming and prone to omissions, resulting in low efficiency and affecting the purity of the separated samples. Summary of the Invention

[0003] The purpose of this invention is to provide a submerged plant litter separation device to solve the technical problems existing in the prior art, thereby improving the separation efficiency of submerged plant litter and increasing the purity of the separated samples.

[0004] To achieve the above objectives, the present invention provides the following solution:

[0005] This invention provides a submerged plant litter separation device, comprising a first screening component and a second screening component arranged from top to bottom, the first screening component and the second screening component being spaced apart in the height direction, the screening hole diameter of the first screening component being larger than the size of the submerged plant litter, and the screening hole diameter of the second screening component being smaller than the size of the submerged plant litter, the circumferential edges of the first screening component and the second screening component being connected to a support frame and sloping downward from the circumferential edge to the middle, the bottom end of the second screening component being provided with a first discharge port that can be opened or closed; a separation tank that can be disposed at the bottom end of the first discharge port to receive the material discharged after the first discharge port is opened; a stirring device that can be inserted into the separation tank for stirring; and a movable rinsing spray gun.

[0006] In some embodiments, a second discharge port that can be opened or closed is provided on the bottom surface of the separation barrel, and the bottom surface of the separation barrel is inclined downward from the side away from the second discharge port to the side closer to the second discharge port.

[0007] In some embodiments, the aperture of the first screening element is 1.5 cm, and the aperture of the second screening element is 2 mm.

[0008] In some embodiments, both the first discharge port and the second discharge port are equipped with solenoid valves.

[0009] In some embodiments, the fixing part of the stirring device is mounted on the support frame, the stirring part is disposed at the bottom end of the fixing part and rotatably connected to the fixing part, and the length of the stirring part is extendable.

[0010] In some embodiments, a controller is also included, which is signal-connected to the solenoid valve and the stirring device, and the controller is capable of controlling the opening or closing of the solenoid valve and the starting or stopping of the stirring device.

[0011] In some embodiments, the first screening element is a polyethylene screening mesh, and the second screening element is a wear-resistant screening plate.

[0012] In some embodiments, two driving devices are also included. The driving ends of the two driving devices are respectively connected to the first screening component and the second screening component, and the fixed ends of the two driving devices are disposed on the support frame. The two driving devices can respectively drive the first screening component and the second screening component to reciprocate in the vertical direction.

[0013] In some embodiments, the rinsing spray gun includes a water inlet pipe, a spray gun body, and a battery. One end of the water inlet pipe is used to introduce water, and the other end is connected to the spray gun body. The battery is used to supply power to the spray gun body.

[0014] In some embodiments, the bottom end of the support frame is equipped with rollers and a braking device.

[0015] The present invention achieves the following technical effects compared to the prior art:

[0016] This invention provides a device for separating submerged plant litter. When separating submerged plant litter, the collected sample is first placed on a first sieve, and a rinsing spray gun is used to rinse the sample on the first sieve, causing large-diameter stones to be separated. The remaining sample passes through the sieve holes of the first sieve to a second sieve. Then, a rinsing spray gun is used to rinse the sample on the second sieve, washing away the mud and sand through the sieve holes. Afterwards, the first discharge port is opened, and the remaining sample is flushed into a separation tank. In the separation tank, the sample and water mixture is stirred, and the litter remains suspended in the water, while small stones, shells, and other impurities sink to the bottom. This achieves efficient separation of litter from similarly sized small stones, shells, and other impurities. This device eliminates the need for manual sorting of stones and shells, improving the separation efficiency of submerged plant litter and increasing the purity of the separated sample. Attached Figure Description

[0017] To more clearly illustrate the technical solutions in the embodiments of the present invention or the prior art, the drawings used in the embodiments will be briefly introduced below. Obviously, the drawings described below are only some embodiments of the present invention. For those skilled in the art, other drawings can be obtained based on these drawings without creative effort.

[0018] Figure 1 This is a schematic diagram of the submerged plant litter separation device according to one embodiment of this invention;

[0019] Figure 2 This is a schematic diagram of the separation tank structure according to one embodiment of this invention;

[0020] Figure 3 This is a schematic diagram of the flushing spray gun structure according to one embodiment of this invention;

[0021] Figure 4 This is a schematic diagram of the separation tank and stirring device in one embodiment of this invention.

[0022] In the diagram: 1-First screening component; 2-Second screening component; 21-First discharge port; 3-Separation tank; 31-Second discharge port; 4-Agitator; 41-DC motor; 42-Agitator shaft; 43-Agitator paddle; 5-Rinsing spray gun; 51-Water inlet pipe; 52-Spray gun body; 6-Solenoid valve; 7-Controller; 8-Support frame. Detailed Implementation

[0023] The technical solutions of the embodiments of the present invention will be clearly and completely described below with reference to the accompanying drawings. Obviously, the described embodiments are only some embodiments of the present invention, and not all embodiments. Based on the embodiments of the present invention, all other embodiments obtained by those skilled in the art without creative effort are within the scope of protection of the present invention.

[0024] The purpose of this invention is to provide a submerged plant litter separation device to solve the technical problems existing in the prior art, thereby improving the separation efficiency of submerged plant litter and increasing the purity of the separated samples.

[0025] To make the above-mentioned objects, features and advantages of the present invention more apparent and understandable, the present invention will be further described in detail below with reference to the accompanying drawings and specific embodiments.

[0026] This invention provides a device for separating submerged plant litter, such as... Figures 1-4As shown, the system includes a first screening component 1 and a second screening component 2, a separation tank 3, a stirring device 4, and a movable rinsing spray gun 5, arranged from top to bottom. The first screening component 1 and the second screening component 2 are spaced apart in the height direction. The sieve aperture of the first screening component 1 is larger than the size of the submerged plant litter, and the sieve aperture of the second screening component 2 is smaller than the size of the submerged plant litter. The circumferential edges of the first screening component 1 and the second screening component 2 are connected to the support frame 8 and slope downward from the circumferential edge to the middle. The bottom end of the second screening component 2 is provided with a first discharge port 21 that can be opened or closed. The separation tank 3 can be set at the bottom end of the first discharge port 21 to collect the material discharged after the first discharge port 21 is opened. The stirring part of the stirring device 4 can be inserted into the separation tank 3 to stir. When separating the submerged plant litter, the collected sample is first placed in... The sample is placed on the first screening element 1, and the sample on the first screening element 1 is rinsed with a rinsing spray gun 5 to separate out large-diameter stones. The remaining sample passes through the screening holes of the first screening element 1 to the second screening element 2. Then, the sample on the second screening element 2 is rinsed with the rinsing spray gun 5 to wash out the mud and sand in the sample through the screening holes of the second screening element 2. Then, the first discharge port 21 is opened to flush the remaining sample on the second screening element 2 into the separation tank 3. After the sample and water mixture in the separation tank 3 is stirred, the litter is suspended in the water, while the fine gravel, shells and other impurities sink to the bottom. This achieves efficient separation of litter from fine gravel, shells and other impurities of similar size. This device eliminates the need for manual picking of stones and shells and other impurities, improves the separation efficiency of submerged plant litter, and improves the purity of the separated sample.

[0027] In some embodiments of the present invention, such as Figures 1-2 As shown, a second discharge port 31 that can be opened or closed is provided on the bottom surface of the separation tank 3. The bottom surface of the separation tank 3 is inclined downward from the side away from the second discharge port 31 to the side closer to the second discharge port 31. When the sample and water mixture in the separation tank 3 are stirred and allowed to stand and separate, the litter is lighter and floats on the upper layer of the water surface, while the fine gravel, shells and other impurities are heavier and settle on the lower layer of the water surface. At this time, the second discharge port 31 is opened to discharge the fine gravel and shells in the lower layer with the water from the separation tank 3, thus leaving the submerged plant litter after screening.

[0028] In some embodiments of the present invention, when screening the litter of submerged plants such as Vallisneria natans, Hydrilla verticillata, and Myriophyllum spicatum after initial crushing (i.e., after physical actions such as water flow impact, wave disturbance, collision and friction of mud or rocks, and feeding or crawling disturbance by benthic animals), the size of the litter is about 1 cm. The aperture of the first screening element 1 is 1.5 cm, and the aperture of the second screening element 2 is 2 mm (10 mesh). The first screening element 1 can retain large-diameter stones on the first screening element 1, and the remaining sample passes through the screening holes of the first screening element 1 to the second screening element 2, while the mud and sand in the sample will be washed out through the screening holes on the second screening element 2.

[0029] In some embodiments of the present invention, such as Figures 1-4 As shown, both the first discharge port 21 and the second discharge port 31 are equipped with solenoid valves 6. In the initial state, both solenoid valves 6 are closed. After the mud and sand on the second screening piece 2 are washed away, the solenoid valve 6 at the first discharge port 21 is opened to flush the remaining sample on the second screening piece 2 into the separation tank 3. After the sample and water mixture in the separation tank 3 are stirred, the litter is suspended in the water, while the fine gravel, shells and other impurities sink to the bottom. The solenoid valve 6 at the second discharge port 31 is opened to discharge the fine gravel and shells in the lower layer of the separation tank 3 with the water, thus leaving the submerged plant litter after screening.

[0030] In some embodiments of the present invention, such as Figure 1 As shown, the fixed part of the stirring device 4 is installed on the support frame 8. The stirring part is located at the bottom of the fixed part and is rotatably connected to the fixed part. The length of the stirring part can be extended and retracted. When the remaining sample is flushed into the separation tank 3, the length of the stirring part is shortened first, and the separation tank 3 is placed under the stirring part. Then the length of the stirring part is extended and the stirring part is inserted into the separation tank 3 to stir the sample and water mixture.

[0031] Specifically, such as Figure 4 As shown, the fixed part of the stirring device 4 includes a DC motor 41, and the stirring part includes a stirring shaft 42 and a stirring paddle 43. The DC motor 41 is securely mounted on the support frame 8 by a high-strength bolt assembly. Its output shaft is set downward and is coaxially fixedly connected to the stirring shaft 42. The stirring paddle 43 is installed at the bottom end of the stirring shaft 42, and the length of the stirring shaft 42 can be extended or retracted.

[0032] In some embodiments of the present invention, such as Figures 1-4As shown, the submerged plant litter separation device also includes a controller 7, which is connected to the solenoid valve 6 and the stirring device 4 respectively. The controller 7 can control the opening or closing of the solenoid valve 6 and the starting or closing of the stirring device 4, thereby realizing the semi-automatic operation of the submerged plant litter separation device. At the same time, the controller 7 can also control the stirring speed of the stirring device 4. The preferred stirring speed is 100 to 150 revolutions per minute to avoid the stirring speed being too fast and affecting the integrity of the litter, while avoiding the stirring speed being too slow and failing to separate the litter from small gravel and shells.

[0033] In some embodiments of the present invention, the first screening component 1 is a polyethylene screening mesh, and the second screening component 2 is a wear-resistant screening plate, specifically made of transparent acrylic material. The circumferential edges of the first screening component 1 and the second screening component 2 are connected to the support frame 8 and slope downward from the circumferential edge to the middle. When the sample on the first screening component 1 or the second screening component 2 is rinsed with the rinsing spray gun 5, the setting of high edge and low middle can prevent the sample from being washed out of the first screening component 1 or the second screening component 2, thereby reducing sample loss.

[0034] In some embodiments of the present invention, the submerged plant litter separation device further includes two sets of driving devices. The driving ends of the two sets of driving devices are respectively connected to the first sieve 1 and the second sieve 2. The fixed ends of the two sets of driving devices are disposed on the support frame 8. The driving devices can drive the first sieve 1 and the second sieve 2 to reciprocate in the vertical direction to achieve sample sieving. Specifically, the driving devices are electric telescopic cylinders mounted on the support frame 8. Each set of driving devices has three electric telescopic cylinders. The driving ends of the three electric telescopic cylinders are connected to the circumferential edge of the first sieve 1 to drive the first sieve 1 to move in the vertical direction. The driving ends of the three electric telescopic cylinders are connected to the circumferential edge of the second sieve 2 to drive the second sieve 2 to move in the vertical direction.

[0035] In some embodiments of the present invention, such as Figure 3 As shown, the rinsing spray gun 5 includes a water inlet pipe 51, a spray gun body 52, and a battery. One end of the water inlet pipe 51 is used to introduce water, and the other end is connected to the spray gun body 52. ​​The battery is used to power the spray gun body 52. ​​After holding and turning on the rinsing spray gun 5, it can rinse the sample on the first sieve 1 or the second sieve 2.

[0036] In some embodiments of the present invention, the bottom end of the support frame 8 is equipped with rollers, which makes the submerged plant litter separation device mobile and easy to move in the field environment. A braking device is also provided so that the support frame 8 will not move when the litter is being screened by the water flow of the flushing gun 5.

[0037] Specific examples have been used to illustrate the principles and implementation methods of this invention. The descriptions of the above embodiments are only for the purpose of helping to understand the method and core ideas of this invention. Furthermore, those skilled in the art will recognize that, based on the ideas of this invention, there will be changes in the specific implementation methods and application scope. Therefore, the content of this specification should not be construed as a limitation of this invention.

Claims

1. A device for separating submerged plant litter, characterized in that, include A first screening component and a second screening component are arranged from top to bottom, with a gap between them in the height direction. The sieve hole diameter of the first screening component is larger than the size of the submerged plant litter, and the sieve hole diameter of the second screening component is smaller than the size of the submerged plant litter. The circumferential edges of the first screening component and the second screening component are connected to the support frame and slope downward from the circumferential edge to the middle. The bottom end of the second screening component is provided with a first discharge port that can be opened or closed. A separation tank is provided at the bottom of the first discharge port to receive the material discharged after the first discharge port is opened. A stirring device, wherein the stirring part of the stirring device can be inserted into the separation tank and stirred; as well as Portable flushing spray gun.

2. The submerged plant litter separation device according to claim 1, characterized in that, The bottom surface of the separation barrel is provided with a second discharge port that can be opened or closed, and the bottom surface of the separation barrel is inclined downward from the side away from the second discharge port to the side closer to the second discharge port.

3. The submerged plant litter separation device according to claim 1, characterized in that, The aperture of the first screening element is 1.5 cm, and the aperture of the second screening element is 2 mm.

4. The submerged plant litter separation device according to claim 2, characterized in that, Solenoid valves are installed at both the first and second discharge ports.

5. The submerged plant litter separation device according to claim 4, characterized in that, The fixed part of the stirring device is installed on the support frame, the stirring part is located at the bottom end of the fixed part and is rotatably connected to the fixed part, and the length of the stirring part can be extended or retracted.

6. The submerged plant litter separation device according to claim 5, characterized in that, It also includes a controller, which is signal-connected to the solenoid valve and the stirring device. The controller is capable of controlling the opening or closing of the solenoid valve and the starting or stopping of the stirring device.

7. The submerged plant litter separation device according to claim 1, characterized in that, The first screening component is a polyethylene screening mesh, and the second screening component is a wear-resistant screening plate.

8. The submerged plant litter separation device according to claim 1, characterized in that, It also includes two driving devices, the driving ends of which are respectively connected to the first screening component and the second screening component, and the fixed ends of which are disposed on the support frame. The two driving devices can respectively drive the first screening component and the second screening component to reciprocate in the vertical direction.

9. The submerged plant litter separation device according to claim 1, characterized in that, The rinsing spray gun includes a water inlet pipe, a spray gun body, and a battery. One end of the water inlet pipe is used to introduce water, and the other end is connected to the spray gun body. The battery is used to power the spray gun body.

10. The submerged plant litter separation device according to claim 1, characterized in that, The bottom end of the support frame is equipped with rollers and a braking device.

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