An underwater slow-release material release device that floats up and down

Abstract

The application discloses a kind of underwater slow-release material releasing devices of up and down floating, it is related to water environmental pollution control technical field;And the present application includes, cylindrical shell and slow-release material, the cylindrical shell is column shape, and is transparent, the cylindrical shell is inlaid with counterweight, air space is equipped in the cylindrical shell, the slow-release material is placed in cylindrical shell, and air space and slow-release material are alternately distributed, the bottom surface of the cylindrical shell is detachably provided with baffle, baffle hole is formed in the baffle, when not being loaded into slow-release material, cylindrical shell can float on water surface, when slow-release material is released from main device and falls off, the position of original slow-release material is replaced by water process, combined with airtight air, the density of automatic adjusting device whole changes on and under the density of water, so that the device sinks and floats in water body, realizes slow-release material release in each water depth of water body, realizes the up and down floating of device under water.

Description

Technical Field

[0001] This invention relates to the field of water environment pollution control technology, specifically to an underwater slow-release material release device that floats up and down. Background Technology

[0002] This year, the national surface water environment has improved significantly, with the proportion of Class I-III water bodies in key national monitoring water bodies increasing from 29.1% in 2002 to 89.4% in 2023. However, the 2023 ecological and environmental bulletin shows that the proportion of important lakes and reservoirs in eutrophication remains high at 27%. As water sources, lakes and reservoirs urgently need to address their eutrophication status.

[0003] The main pollutants causing eutrophication are nitrogen and phosphorus. Slow-release nitrogen and phosphorus removal materials are commonly used in the market to remove nitrogen and phosphorus from water. When these materials are directly added to water, they sink to the bottom because their density is greater than water. Furthermore, limitations imposed by bottom sediment, water depth, and the rate of mass transfer within the water body prevent the materials from being effectively released to remove the target substances. When these materials are fixed at a specific depth within a water body, additional equipment is required, and mass transfer within the water body is still necessary to ensure the materials are released at the full depth. To address these issues, the inventors propose a floating underwater slow-release material release device to solve these problems. Summary of the Invention

[0004] To address the problem that commonly used slow-release denitrification and phosphorus removal materials cannot effectively remove nitrogen and phosphorus from water when directly placed into the water, due to limitations imposed by bottom silt, water depth, and the rate of mass transfer within the water, the present invention aims to provide an underwater slow-release material release device that floats vertically.

[0005] To solve the above-mentioned technical problems, the present invention adopts the following technical solution: a floating underwater slow-release material release device, comprising a cylindrical shell and a slow-release material. The cylindrical shell is cylindrical in shape and transparent. A counterweight is embedded inside the cylindrical shell. An air space is provided inside the cylindrical shell. The slow-release material is placed inside the cylindrical shell, and the air space and the slow-release material are alternately distributed. A partition is detachably provided on the bottom surface of the cylindrical shell. The partition has circular holes. When no slow-release material is installed, the cylindrical shell can float on the water surface with its opening facing upwards, and its average density is 0.90-0.95 t / m³. 3 When the cylindrical shell is filled with slow-release material, the average density of the cylindrical shell is 1.05-1.10 t / m³. 3The area adjacent to the counterweight is the air space, and the outermost area of ​​the cylindrical shell is the slow-release material. Based on the weight of the empty cylindrical shell and the density of the slow-release material, the overall density of the space composed of the air space and the slow-release material is controlled at 1.10-1.30 t / m³. When filled with material, the cylindrical shell first sinks to the bottom. As the slow-release material is consumed, its original position is replaced by water with a lower density, until the buoyancy exceeds the weight of the cylindrical shell, causing it to float to the water surface. When the slow-release material inside the cylindrical shell is continuously consumed until the water contacts the perforations in the partition, it penetrates into the air space, releasing air to the outside. The air space inside the cylindrical shell is then replaced by water, and the density of the cylindrical shell once again exceeds that of water, causing it to sink back to the bottom. When each layer of slow-release material is consumed by 30-70%, the average density of the cylindrical shell reaches 1.0 t / m³. Finally, after all the slow-release material has been released, it floats to the water surface.

[0006] Preferably, the slow-release material is located on the top surface of the partition, and the shape of the slow-release material is concave with a lower middle and a higher outer side. One side of the slow-release material is bonded to the inner wall of the cylindrical shell, and the bottom surface of the slow-release material is bonded to the top surface of the partition.

[0007] Preferably, the ratio of the length L of the cylindrical outer shell to the cross-sectional dimension D is less than 3:1, and the density of the counterweight is between 3.0 and 8.0 t / m³. 3 The diameter of the holes in the partition is 10-30% of the size of the partition, and their total area accounts for 30-45%.

[0008] Compared with the prior art, the beneficial effects of the present invention are as follows:

[0009] 1. The slow-release material release device of the present invention changes the relationship between the buoyancy and gravity of the device during the release of the slow-release material, realizes the alternation between the floating and sinking processes of the device, and realizes the release of material in the full depth of the water body;

[0010] 2. The slow-release material release device of the present invention can be recovered from the water surface after the slow-release material has completely reacted, and after being refilled with slow-release material, it can be put back into the water for use. Attached Figure Description

[0011] To more clearly illustrate the technical solutions in the embodiments of the present invention or the prior art, the drawings used in the description of the embodiments or the prior art 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.

[0012] Figure 1 This is a schematic diagram of the structure of the sustained-release material release device of the present invention;

[0013] Figure 2 This is a partial structural schematic diagram of the slow-release material release device of the present invention;

[0014] Figure 3 This is a top view of the partition structure of the slow-release material release device of the present invention;

[0015] Figure 4 This is a schematic cross-sectional view of the partition structure of the slow-release material release device of the present invention.

[0016] In the diagram: 1. Cylindrical outer shell; 2. Counterweight; 3. Air space; 4. Slow-release material; 5. Partition; 6. Partition holes. Detailed Implementation

[0017] 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.

[0018] Example: Figure 1-4 As shown, this invention provides an underwater slow-release material release device that floats vertically, including a cylindrical shell 1 and a slow-release material 4. The cylindrical shell 1 is cylindrical in shape and transparent. A counterweight 2 is embedded inside the cylindrical shell 1. An air space 3 is provided inside the cylindrical shell 1. The slow-release material 4 is placed inside the cylindrical shell 1, and the air space 3 and the slow-release material 4 are alternately distributed. A partition 5 is detachably provided on the bottom surface of the cylindrical shell 1. A partition hole 6 is formed in the partition 5. The partition hole 6 is circular. The counterweight 2 is located 2.5 cm from the bottom of the cylindrical shell 1 in the length direction. The first air space 3 is 1.5cm long and the first slow-release material 4 is 6cm thick. The second air space 3 is 2cm long and the second slow-release material 4 is 8cm thick. The cylindrical shell 1 is made of hollow organic glass. The transparent cylindrical shell 1 allows observation of the consumption of the slow-release material 4 inside. The cylindrical shell 1 is short and thick to ensure that the air inside the device can be quickly released into the water body and that the water outside can quickly enter the device. The cylindrical shell 1 is water-sealed, so that after the device is placed in the water body, water cannot enter the device through the side of the cylindrical shell 1.

[0019] Without the slow-release material 4, the cylindrical shell 1 can float on the water surface with its opening facing upwards, and its average density is 0.90-0.95 t / m³. 3 When the cylindrical shell 1 is filled with the slow-release material 4, the average density of the cylindrical shell 1 is 1.05-1.10 t / m³. 3The area adjacent to the counterweight 2 is the air space 3, and the outermost area of ​​the cylindrical shell 1 is the slow-release material 4. Based on the weight of the empty cylindrical shell 1 and the density of the slow-release material 4, the overall density of the space composed of the air space 3 and the slow-release material 4 is controlled at 1.10-1.30 t / m³. When filled with material, the cylindrical shell 1 first sinks to the bottom. As the slow-release material 4 is consumed, its original position is replaced by water with a lower density, until the buoyancy exceeds the weight of the cylindrical shell 1, causing it to float to the water surface. When the slow-release material 4 inside the cylindrical shell 1 is continuously consumed until the water contacts the partition hole 6, it penetrates into the air space 3, where air is released to the outside. The air space 3 inside the cylindrical shell 1 is then replaced by water, and the density of the cylindrical shell 1 once again exceeds that of water, causing it to sink back to the bottom. When each layer of slow-release material 4 is consumed by 30-70%, the average density of the cylindrical shell 1 reaches 1.0 t / m³. Finally, after the slow-release material 4 is completely released, it floats to the water surface.

[0020] The partition 5 is connected to the cylindrical shell 1 through a sealed and detachable component. When the slow-release material 4 in the device is consumed, the partition 5 can be removed and new slow-release material 4 can be added to the cylindrical shell 1.

[0021] The slow-release material 4 is located on the top surface of the partition 5, and the slow-release material 4 is concave in shape with a lower middle and a higher outer side. One side of the slow-release material 4 is bonded to the inner wall of the cylindrical shell 1, and the bottom surface of the slow-release material 4 is bonded to the top surface of the partition 5.

[0022] By adopting the above technical solution, the slow-release material 4 is a slow-release denitrification material with a density of 1.45 t / m3. The adhesion of the slow-release material 4 meets the water-tight requirements, and natural water pressure cannot penetrate it. The slow-release material 4 placed on the partition 5 has a concave shape with a lower center and a higher outer edge. This ensures that the slow-release material 4 on the partition hole 6 is basically consumed in the end.

[0023] The ratio of the length L to the cross-sectional dimension D of the cylindrical shell 1 is less than 3:1, and the density of the counterweight 2 is between 3.0 and 8.0 t / m³. 3 The diameter of the hole 6 in the partition plate is 10-30% of the size of the partition plate 5, and its total area accounts for 30-45%.

[0024] By adopting the above technical solution, the cylindrical shell 1 is cylindrical with a bottom diameter of 20cm and a height of 20cm. The counterweight 2 is an iron sheet with a thickness of 5mm, which is embedded in the cylindrical shell 1 to ensure that the opening of the cylindrical shell 1 is in the upward direction, which is conducive to the contact between water and the slow-release material 4 and the release of air in the air space 3.

[0025] Working principle: Without the slow-release material 4, the cylindrical shell 1 can float on the water surface with its opening facing upwards, and its average density is 0.90-0.95 t / m³. 3When the cylindrical shell 1 is filled with the slow-release material 4, the average density of the cylindrical shell 1 is 1.05-1.10 t / m³. 3 The area adjacent to the counterweight 2 is the air space 3, and the outermost area of ​​the cylindrical shell 1 is the slow-release material 4. Based on the weight of the empty cylindrical shell 1 and the density of the slow-release material 4, the overall density of the space composed of the air space 3 and the slow-release material 4 is controlled at 1.10-1.30 t / m³. When filled with material, the cylindrical shell 1 first sinks to the bottom. As the slow-release material 4 is consumed, its original position is replaced by water with a lower density, until the buoyancy exceeds the weight of the cylindrical shell 1, at which point the cylindrical shell 1 floats to the water surface. When the slow-release material 4 inside the cylindrical shell 1 is continuously consumed until the water contacts the partition hole 6, it penetrates into the air space 3, where air is released to the outside. The air space 3 inside the cylindrical shell 1 is then replaced by water, and the density of the cylindrical shell 1 once again exceeds that of water, causing it to sink back to the bottom. When each layer of slow-release material 4 is consumed by 30-70%, the average density of the cylindrical shell 1 reaches 1.0 t / m³. Finally, after the slow-release material 4 is completely released, it floats to the water surface.

[0026] All standard parts used in this invention can be purchased from the market, and irregular parts can be customized according to the description and drawings. The specific connection methods of each part adopt conventional methods such as bolts, rivets, and welding that are mature in the prior art. The machinery, parts and equipment adopt conventional models in the prior art, and the circuit connection adopts conventional connection methods in the prior art, which will not be described in detail here.

[0027] Obviously, those skilled in the art can make various modifications and variations to this invention without departing from its spirit and scope. Therefore, if these modifications and variations fall within the scope of the claims of this invention and their equivalents, this invention also intends to include these modifications and variations.

Claims

1. A floating underwater slow-release material release device, comprising a cylindrical shell (1) and slow-release material (4), characterized in that: The cylindrical shell (1) is cylindrical and transparent, with a length L to cross-sectional dimension D ratio less than 3:

1. A counterweight (2) is embedded within the cylindrical shell (1). An air space (3) is provided within the cylindrical shell (1). The slow-release material (4) is placed within the cylindrical shell (1), and the air space (3) and the slow-release material (4) are alternately distributed. The overall density of the space composed of the air space (3) and the slow-release material (4) is controlled at 1.10-1.30 t / m³. 3 The bottom surface of the cylindrical shell (1) is detachably provided with a partition (5). The cylindrical shell (1), the counterweight (2), and the partition (3) together form a structure that can float on the surface of water, with an average density of 0.90-0.95 t / m³. 3 The partition (5) has a partition hole (6) inside. The partition hole (6) is circular. The diameter of the partition hole (6) is 10-30% of the size of the partition (5), and its total area accounts for 30-45%. The slow-release material (4) is located on the top surface of the partition (5), and the slow-release material (4) is concave in shape with a lower middle and a higher outer side.

2. The underwater slow-release material release device that floats up and down as described in claim 1, characterized in that, One side of the slow-release material (4) is bonded to the inner wall of the cylindrical shell (1), and the bottom surface of the slow-release material (4) is bonded to the top surface of the partition (5).

3. The underwater slow-release material release device that floats up and down as described in claim 1, characterized in that, The density of the counterweight (2) is between 3.0 and 8.0 t / m³. 3 .

4. The underwater slow-release material release device that floats up and down as described in claim 1, characterized in that, The connection between the partition (5) and the cylindrical outer shell (1) is a sealed and detachable component.

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