Centrifugal drying device for soil erosion simulation experiment

Abstract

This utility model relates to the technical field of soil and water conservation equipment, and discloses a centrifugal drying device for soil and water conservation simulation experiments. It includes a base, a weight detection element, a shell, a rotating drum, a receiving container, an air supply mechanism, a heating mechanism, and a rotation drive mechanism. The weight detection element is mounted on the base; the shell is mounted on the weight detection element and has a liquid outlet and an air outlet; the rotating drum is rotatably installed inside the shell, and its wall has a first through hole; multiple receiving containers are arranged circumferentially inside the rotating drum, and their side walls have second through holes; the receiving containers are used to receive sediment flowing from the guide channel; the air supply mechanism includes a nozzle located inside the rotating drum; the heating mechanism is located inside the rotating drum and is used to heat the gas supplied to the nozzle; the rotation drive mechanism is located inside the shell and is connected to the rotating drum to drive its rotation. This utility model can improve the efficiency of sediment treatment and shorten the time required after soil and water conservation simulation experiments.

Description

Technical Field

[0001] This utility model relates to the field of soil and water loss equipment technology, and in particular to a centrifugal drying device for soil and water loss simulation experiments. Background Technology

[0002] Soil erosion is one of the world's most significant natural hazards, leading not only to soil degradation but also posing a substantial threat to industrial and agricultural production. In comprehensive soil erosion control, runoff sediment content is a crucial parameter for assessing soil loss. Currently, runoff sediment content is primarily measured using direct and indirect methods. Indirect methods involve detecting changes in the physicochemical parameters of surface runoff and calculating the sediment load using a relational model. While indirect methods are highly efficient, they suffer from poor accuracy and stability. Therefore, direct measurement methods are currently more commonly used to determine runoff sediment content.

[0003] Direct measurement involves drying and weighing the sediment to determine the amount of runoff sediment. In soil erosion simulation experiments, artificial rainfall simulation devices are used to generate simulated rainfall. The rainwater erodes the slope, causing sediment to flow radially to the catchment area at the bottom of the slope, and finally into a receiving container. During the experiment, the receiving container collects the sediment. After the experiment, the collected sediment is allowed to settle, allowing the sediment to separate into layers. The sediment is then dried and weighed to determine the experimental sediment yield. However, this process typically takes several days, and the drying and weighing of the sediment require manual operation on different devices, making it cumbersome, time-consuming, and inefficient. Utility Model Content

[0004] The purpose of this invention is to provide a centrifugal drying device for soil erosion simulation experiments, so as to improve the efficiency of sediment treatment and shorten the time required after the soil erosion simulation experiments are completed.

[0005] To achieve the above objectives, the present invention adopts the following technical solution:

[0006] This utility model provides a centrifugal drying device for a soil erosion simulation experiment. The soil erosion simulation experiment device is equipped with a guide channel for the outflow of sediment water. The centrifugal drying device includes:

[0007] Base;

[0008] A weight detection element is mounted on the base;

[0009] A housing is disposed on the weight detection element, and the housing has a liquid outlet and a vent hole;

[0010] A rotating drum is rotatably installed inside the outer casing, and the drum wall has a first through hole;

[0011] The system includes multiple receiving containers arranged circumferentially within the rotating cylinder. Each receiving container has a second through hole in its side wall. These containers are used to receive the mud and water flowing out of the guide channel.

[0012] An air delivery mechanism includes a nozzle, which is disposed inside the rotating drum;

[0013] A heating mechanism, disposed within the rotating drum, is used to heat the gas supplied to the nozzle; and

[0014] A rotary drive mechanism is disposed inside the housing and is connected to the rotating drum to drive the rotating drum to rotate.

[0015] In some embodiments, a filter screen is also included, which is laid on the bottom and side walls of the receiving container.

[0016] In some embodiments, a pressure plate is also included, the pressure plate being disposed within the receiving container and pressing against the filter screen on the bottom wall of the receiving container.

[0017] In some embodiments, the rotating drum includes:

[0018] A cylindrical body is rotatably mounted inside the outer shell. One end of the cylindrical body has an open opening. A first through hole is formed in the cylindrical wall of the cylindrical body. The rotary drive mechanism is connected to the cylindrical body.

[0019] An end cap is provided on the open opening and connected to the cylinder.

[0020] In some embodiments, the housing includes:

[0021] A housing is disposed on the weight detection element, and one end of the housing is open;

[0022] A top cover is detachably disposed over the opening and connected to the housing.

[0023] In some embodiments, the gas delivery mechanism further includes:

[0024] An air intake pipe, one end of which is connected to the top cover, and the other end of which is used to connect to an air source;

[0025] A support tube is disposed inside the rotating drum, and the support tube has a cavity that is connected to the air inlet pipe;

[0026] A partition is provided inside the support tube, which divides the cavity into a first cavity and a second cavity arranged vertically. The partition has a vent hole communicating with the first cavity, and the heating mechanism is located in the first cavity.

[0027] An exhaust pipe is disposed in the second cavity and communicates with the vent hole. The nozzle is connected to the exhaust pipe and extends out of the support pipe.

[0028] In some embodiments, the device further includes a rotating shaft, one end of which is rotatably connected to the rotating cylinder, and the other end of which is connected to the side of the top cover facing the rotating cylinder. The rotating shaft is hollow inside and connects the air intake pipe and the support pipe.

[0029] In some embodiments, the heating mechanism includes a first heating plate and a second heating plate, the first heating plate and the second heating plate being disposed opposite each other on the inner wall of the first cavity to heat the gas entering the first cavity.

[0030] In some embodiments, a mounting member is further included, which is detachably connected to the base, and the end of the mounting member away from the base has a pressing portion that presses against the top cover.

[0031] In some embodiments, a controller is also included, and the air supply mechanism, the heating mechanism, and the rotary drive mechanism are electrically connected to the controller.

[0032] Compared with the prior art, the centrifugal drying device for soil erosion simulation experiments according to this embodiment of the invention has the following advantages:

[0033] This invention relates to a centrifugal drying device for simulating soil erosion experiments. A weight detection element is mounted on a base, and the outer shell is placed on top of this element to detect its weight. A rotating drum is housed inside the shell, with multiple receiving containers arranged circumferentially within it. The drum also contains nozzles and a heating mechanism. The heating mechanism heats the gas supplied to the nozzles, which is then sprayed into the rotating drum. The drum is connected to a rotary drive mechanism, which drives the receiving containers to rotate synchronously. The receiving containers collect the sediment flowing from the guide channel. After a set time, the rotating drum is driven to rotate again, causing all the receiving containers to rotate synchronously. This allows the next receiving container to rotate to a position corresponding to the guide channel, facilitating the collection of sediment flowing from the guide channel. This cycle continues until all receiving containers are filled with sediment. Finally, the drum is closed. A rotary drive mechanism rotates the drum, and a gas supply mechanism delivers gas into the drum. A heating mechanism heats the gas, which is then sprayed into the drum through nozzles to accelerate the drying of the sediment-water mixture in the receiving container. The centrifugal force of the rotating drum separates the sediment from the water, and the heated gas from the nozzles further accelerates the drying process. During drying, water is discharged through the outlet, while the sediment remains in the receiving container. After drying, the weight of the outer shell is measured again using a weight detection element. Since the initial weight of the outer shell is known and fixed, the amount of sediment in the experimental runoff can be determined.

[0034] This application utilizes a receiving container to directly collect the sediment and water flowing from the diversion channel of the soil erosion simulation experimental device, completing the sampling process. By driving the rotating drum and receiving container to rotate, the sediment and water are centrifugally dehydrated, and heated gas is sprayed out to dry the sediment and water. Weighing is performed using a weight detection element, thus enabling the separation, drying, and weighing of sediment and water to be completed on the same device, saving the intermediate transfer process between different devices, improving the efficiency of sediment treatment, and shortening the time required. Attached Figure Description

[0035] Figure 1 This is a schematic diagram of a soil erosion simulation experimental device;

[0036] Figure 2 This is a schematic diagram of the centrifugal drying device used for soil erosion simulation experiments according to an embodiment of the present invention;

[0037] Figure 3 This is a front view schematic diagram of the centrifugal drying device used for soil erosion simulation experiments according to an embodiment of this utility model;

[0038] Figure 4This is a top view schematic diagram of the centrifugal drying device used for soil erosion simulation experiments according to an embodiment of this utility model;

[0039] Figure 5 yes Figure 4 Sectional view along line AA in the middle;

[0040] Figure 6 This is a schematic diagram of the internal structure of the rotating drum in an embodiment of this utility model;

[0041] Figure 7 yes Figure 6 Enlarged view of point B in the middle;

[0042] Figure 8 This is a top view of the internal structure of the rotating cylinder in an embodiment of this utility model.

[0043] Numbering on the map:

[0044] 1. Variable slope steel channel; 2. Diversion channel;

[0045] 10. Base; 11. Mounting component; 111. Pressing part; 112. Fastener; 20. Weight detection element; 30. Housing; 301. Liquid outlet; 302. Air outlet; 31. Housing; 32. Top cover; 33. Rotating shaft; 40. Rotating cylinder; 401. First through hole; 41. Cylinder body; 411. Opening; 42. End cover; 50. Receiving container; 501. Second through hole; 51. Filter screen; 52. 60. Pressure plate, 61. Air supply mechanism, 62. Nozzle, 63. Air inlet pipe, 64. Air inlet valve, 65. Support pipe, 66. Cavity, 67.11. First cavity, 68.22. Second cavity, 69. Partition plate, 60.41. Vent hole, 61. Exhaust pipe, 70. Heating mechanism, 71. First heating plate, 72. Second heating plate, 80. Rotary drive mechanism, 90. Controller, 91. Display screen. Detailed Implementation

[0046] In the description of this utility model, it should be noted that the terms "center," "longitudinal," "lateral," "upper," "lower," "front," "rear," "left," "right," "vertical," "horizontal," "top," "bottom," "inner," and "outer," etc., indicating the orientation or positional relationship, are based on the orientation or positional relationship shown in the accompanying drawings and are only for the convenience of describing this utility model and simplifying the description. They do not indicate or imply that the device or element referred to must have a specific orientation, or be constructed and operated in a specific orientation, and therefore should not be construed as a limitation on this utility model. In addition, the terms "first," "second," and "third" are used for descriptive purposes only and should not be construed as indicating or implying relative importance.

[0047] In the description of this utility model, it should be noted that, unless otherwise explicitly specified and limited, the terms "installation," "connection," and "joining" should be interpreted broadly. For example, they can refer to a fixed connection, a detachable connection, or an integral connection; they can refer to a mechanical connection or an electrical connection; they can refer to a direct connection or an indirect connection through an intermediate medium; and they can refer to the internal connection of two components. Those skilled in the art can understand the specific meaning of the above terms in this utility model based on the specific circumstances.

[0048] The specific embodiments of this utility model will be described in further detail below with reference to the accompanying drawings and examples. The following examples are used to illustrate this utility model, but are not intended to limit its scope.

[0049] See Figure 1 The soil erosion simulation experimental device is equipped with a variable slope steel trough 1 and a diversion trough 2. The diversion trough 2 is connected to the variable slope steel trough 1 and is used to drain sediment water. Soil is added to the variable slope steel trough 1 to adjust the slope, and then an artificial simulated rainfall experiment is conducted above the variable slope steel trough 1. The runoff generated in the variable slope steel trough 1 flows out through the diversion trough 2.

[0050] See Figures 2-8 As shown, this utility model embodiment provides a centrifugal drying device for soil erosion simulation experiments, including a base 10, a weight detection element 20, a shell 30, a rotating drum 40, a receiving container 50, an air supply mechanism 60, a heating mechanism 70, and a rotation drive mechanism 80. The weight detection element 20 is disposed on the base 10; the shell 30 is disposed on the weight detection element 20, and the weight of the shell 30 and its internal components can be detected by the weight detection element 20; the shell 30 has a liquid outlet 301 and an air outlet 302, the liquid outlet 301 is located at the bottom of the shell 30, and the air outlet 302 is located at the top of the shell 30; the rotating drum 40 is rotatably mounted on the shell 30. Inside the rotating drum 40, a first through hole 401 is provided in the wall of the drum; multiple receiving containers 50 are provided, and multiple receiving containers 50 are arranged in the circumference of the rotating drum 40 inside the rotating drum 40, and a second through hole 501 is provided in the side wall of the receiving container 50; the receiving container 50 is used to receive the mud and sand water flowing out of the guide channel 2; the air supply mechanism 60 includes a nozzle 61, which is provided inside the rotating drum 40; the heating mechanism 70 is provided inside the rotating drum 40 to heat the gas supplied to the nozzle 61, and the heated gas is sprayed into the rotating drum 40 through the nozzle 61; the rotation drive mechanism 80 is provided inside the outer shell 30, and the rotation drive mechanism 80 is connected to the rotating drum 40 to drive the rotating drum 40 to rotate.

[0051] A weight detection element 20 is installed on the base 10, and the outer casing 30 is placed on the weight detection element 20. The weight of the outer casing 30 and its internal components can be detected by the weight detection element 20. A rotating cylinder 40 is installed inside the outer casing 30, and multiple receiving containers 50 are arranged circumferentially inside the rotating cylinder 40. A nozzle 61 and a heating mechanism 70 are also installed inside the rotating cylinder 40. The heating mechanism 70 heats the gas supplied to the nozzle 61, and the heated gas is sprayed into the rotating cylinder 40 through the nozzle 61. The rotating cylinder 40 is connected to a rotary drive mechanism 80, which drives the rotating cylinder 40 to rotate synchronously with each receiving container 50. The sediment-water flowing from the guide channel 2 is collected by the receiving container 50. After a set time, the rotating drum 40 is driven to rotate by the rotary drive mechanism 80. The rotating drum 40 drives all the receiving containers 50 to rotate synchronously, so that the next receiving container 50 rotates to the position corresponding to the guide channel 2 to collect the sediment-water flowing out of the guide channel 2. This cycle is repeated so that multiple receiving containers 50 collect sediment-water. Then, the rotating drum 40 is closed. The rotating drum 40 is driven to rotate by the rotary drive mechanism 80, and gas is supplied into the rotating drum 40 by the air supply mechanism 60. The gas supplied into the rotating drum 40 is heated by the heating mechanism 70. The heated gas is sprayed into the rotating drum 40 through the nozzle 61 to accelerate the drying of the sediment-water in the receiving container 50. Under the centrifugal force of the rotating drum 40, the sediment and water in the receiving container 50 are separated, and the heated gas sprayed through the nozzle 61 accelerates the drying efficiency of the sediment. During the drying process, water is discharged through the outlet 301, while the sediment remains in the receiving container 50. After drying, the weight of the outer shell 30 is measured again by the weight detection element 20. Since the initial weight of the outer shell 30 and its internal components is known and fixed, the amount of sediment in the experimental runoff can be obtained.

[0052] This application allows the receiving container 50 to directly receive the sediment and water flowing out of the guide channel 2 of the soil erosion simulation experimental device, completing the sampling work. By driving the rotating drum 40 and the receiving container 50 to rotate, the sediment and water are centrifugally dehydrated, and the sediment and water are dried by the sprayed heating gas. The weight is measured by the weight detection element 20, so that the separation, drying and weighing of sediment and water are all completed on the same device, saving the intermediate transfer process between different devices, improving the efficiency of sediment treatment and shortening the time.

[0053] In some embodiments, the weight detection element 20 is a weight detection sensor. See also... Figures 2-5 As shown, there are two weight detection elements 20, which are spaced apart on the base 10.

[0054] See Figure 6 and Figure 8As shown, in some embodiments, multiple receiving containers 50 are evenly arranged around the circumference of the rotating cylinder 40. To facilitate the receiving containers 50 in receiving the mud and sand flowing out of the guide channel 2, the receiving containers 50 are cylindrical structures with one open end. A second through hole 501 is provided on the side wall of the receiving container 50. When the rotating cylinder 40 rotates, the water inside the receiving container 50 is thrown out through the second through hole 501 to the outside under the action of centrifugal force, while the mud and sand remain inside the receiving container 50. Six receiving containers 50 are provided, and the volume of the receiving containers 50 is determined based on the simulated rainfall and the volume of the variable slope steel channel 1. For example, with a rainfall of 80mm / h to 90mm / h and a total runoff time of 30 minutes, the volume of the variable slope steel trough 1 is 1m × 0.5m × 0.3m, and the volume of each receiving container 50 is 5L; with a rainfall of 25mm / h to 30mm / h and a total runoff time of 30 minutes, the volume of the variable slope steel trough 1 is 1m × 1m × 0.3m, and the volume of each receiving container 50 is 4L; with a rainfall of 30mm / h to 50mm / h and a total runoff time of 30 minutes, the volume of the variable slope steel trough 1 is 1m × 0.5m × 0.3m, and the volume of each receiving container 50 is 3L.

[0055] To ensure that as much sediment as possible is contained within the receiving container 50. See also Figures 5-6 , Figure 8 As shown, in some embodiments, the centrifugal drying device further includes a filter screen 51, which is laid on the bottom and side walls of the receiving container 50. The filter screen 51 can further intercept the sediment in the receiving container 50, thereby improving the accuracy of sediment quantity measurement.

[0056] See Figures 5-6 , Figure 8 As shown, in some embodiments, the centrifugal drying apparatus further includes a pressure plate 52, which is disposed inside the receiving container 50 and presses against the filter screen 51 on the bottom wall of the receiving container 50. The pressure plate 52 secures the bottom of the filter screen 51, preventing deformation or displacement within the receiving container 50 under centrifugal rotation. In use, the filter screen 51 is first laid on the side and bottom walls of the receiving container 50, and then the pressure plate 52 is pressed onto the filter screen 51. The receiving container 50 is cylindrical, and correspondingly, the pressure plate 52 is circular.

[0057] See Figure 3 and Figure 5As shown, in some embodiments, the rotating drum 40 includes a drum body 41 and an end cap 42. The drum body 41 is rotatably installed inside the outer casing 30. One end of the drum body 41 has an open opening 411, and a first through hole 401 is formed in the drum wall of the drum body 41. The rotation drive mechanism 80 is connected to the drum body 41. The end cap 42 is placed on the open opening 411 and connected to the drum body 41. Setting the drum body 41 as a separate structure of the drum body 41 and the end cap 42 facilitates the assembly and disassembly of the drum body 41. This makes it easy to remove the end cap 42 from the drum body 41, exposing the receiving container 50. The receiving container 50 is then aligned with the outlet of the guide channel 2 to receive the mud and sand. After the receiving container 50 has finished receiving the mud and sand, the drum body 41 can be sealed by placing the end cap 42 on the drum body 41, preventing the mud and sand in the receiving container 50 from overflowing from its top opening under the centrifugal force of rotation.

[0058] See Figure 2 , Figure 3 and Figure 5 As shown, in some embodiments, the outer casing 30 includes a housing 31 and a top cover 32. The housing 31 is mounted on the weight detection element 20, and one end of the housing 31 is open. The top cover 32 is detachably mounted on the opening and connected to the housing 31. By removing the top cover 32, the internal rotating drum 40 can be exposed, thereby facilitating the alignment of the receiving container 50 with the sediment outlet of the guide channel 2. When the top cover 32 is connected to the housing 31, the outer casing 30 forms a closed structure, facilitating the rotation of the rotating drum 40 inside and allowing the outer casing 30 to collect water ejected from the rotating drum 40.

[0059] See Figures 2-5 As shown, in some embodiments, the centrifugal drying apparatus further includes a mounting member 11, which is detachably connected to the base 10. The end of the mounting member 11 away from the base 10 has a pressing portion 111 that presses against the top cover 32. The pressing portion 111 fixes the top cover 32 relative to the housing 31, forming a closed cavity within the housing 30. The mounting member 11 and the base 10 can be connected by a fastener 112, such as a right-angle fastener 112.

[0060] See Figures 5-7As shown, in some embodiments, the air supply mechanism 60 further includes an air inlet pipe 62, a support pipe 63, a partition plate 64, and an exhaust pipe 65. One end of the air inlet pipe 62 is connected to the top cover 32, and the other end of the air inlet pipe 62 is used to connect to an air source, which can be a compressed air source. An air inlet valve 621 is provided on the air inlet pipe 62, and the connection between the air inlet pipe 62 and the air source can be controlled by controlling the air inlet valve 621. The support pipe 63 is located inside the rotating drum 40, and the support pipe 63 has a cavity 631. The cavity 631 is connected to the intake pipe 62; a partition 64 is disposed inside the support pipe 63, dividing the cavity 631 into a first cavity 6311 and a second cavity 6312 arranged vertically. A vent 641 communicating with the first cavity 6311 is provided on the partition 64, and a heating mechanism 70 is disposed inside the first cavity 6311; an exhaust pipe 65 is disposed inside the second cavity 6312 and communicates with the vent 641, and a nozzle 61 is connected to the exhaust pipe 65, extending out of the support pipe 63. The exhaust pipe 65 is coaxially disposed inside the support pipe 63. Gas from the gas source enters the first chamber 6311 through the air inlet pipe 62. Within the first chamber 6311, it is heated by the heating mechanism 70. The heated gas then enters the second chamber 6312 through the vent hole 641 on the partition plate 64, and is then sprayed out into the rotating drum 40 through the nozzle 61 to dry the mud and sand in the receiving container 50, thereby improving the drying efficiency. Air is supplied to the nozzle 61 through a combination of a support pipe 63 and an exhaust pipe. The support pipe 63 not only provides space for the heating mechanism 70 but also, in conjunction with the exhaust pipe 65, enhances the support strength for the nozzle 61 and the heating mechanism 70. Multiple nozzles 61 can be installed, arranged in rows along the length of the exhaust pipe 65 and in multiple rows along the circumference of the exhaust pipe 65, ensuring uniform diffusion of the heated gas into the rotating drum 40.

[0061] See Figure 5 As shown, in some embodiments, the centrifugal drying device further includes a rotating shaft 33. One end of the rotating shaft 33 is rotatably connected to the rotating drum 40, and the other end is connected to the side of the top cover 32 facing the rotating drum 40. The rotating shaft 33 is hollow inside and connects the air inlet pipe 62 and the support pipe 63. By setting the rotating shaft 33 to a hollow structure, it can not only connect the rotating drum 40 and the top cover 32, but also connect the air inlet pipe 62 and the support pipe 63. When the rotary drive mechanism 80 drives the rotating drum 40 to rotate, the rotating drum 40 rotates relative to the rotating shaft 33, realizing the rotation of the rotating drum 40 within the outer casing 30.

[0062] See Figures 5-7As shown, in some embodiments, the heating mechanism 70 includes a first heating plate 71 and a second heating plate 72, which are disposed opposite to each other on the inner wall of the first cavity 6311 to heat the gas entering the first cavity 6311. Both the first heating plate 71 and the second heating plate 72 may be arc-shaped to be close to the inner wall of the first cavity 6311. Both the first heating plate 71 and the second heating plate 72 may be electric heating plates.

[0063] In some embodiments, the rotary drive mechanism 80 may be a power mechanism such as a motor or a rotary cylinder that can drive the housing 30 to rotate; however, this utility model will not elaborate on these details.

[0064] See Figure 2 and Figure 3 As shown, in some embodiments, the centrifugal drying device further includes a controller 90, and an air supply mechanism 60, a heating mechanism 70, and a rotary drive mechanism 80 are electrically connected to the controller 90. After the receiving container 50 has finished receiving the mud and sand, the end cap 42 and the top cap 32 are closed; the controller 90 controls the rotary drive mechanism 80 to drive the rotating drum 40 to rotate inside the outer shell 30, the controller 90 also controls the air supply mechanism 60 to supply gas into the air inlet pipe 62, and controls the heating mechanism 70 to heat the gas entering the first chamber 6311, so that the heated gas is sprayed out through the nozzle 61 into the rotating drum 40 to dry the mud and sand.

[0065] See Figure 2 and Figure 3 As shown, in some embodiments, the centrifugal drying apparatus further includes a display screen 91, which is disposed on the outer wall of the housing 30 and electrically connected to the controller 90. The display screen 91 can be used to display information such as the rotational speed of the drum 40 and the weight information detected by the weight detection element 20.

[0066] The working process of this utility model is as follows:

[0067] After placing the filter screen 51 inside the rotating drum 40, the bottom of the filter screen 51 is fixed by the pressure plate 52. The receiving container 50 is aligned with the outlet of the guide channel 2, allowing the mud and water generated in the variable slope steel trough 1 to flow into the receiving container 50 from the guide channel 2. When one of the receiving containers 50 has collected the mud and water for a set time, the rotating drum 40 is driven to rotate by the rotary drive device, so that the next receiving container 50 is aligned with the outlet of the guide channel 2 to collect the mud and water. This cycle continues until the flow production ends. Then, the upper edge of the filter screen 51 is pressed between the end cap 42 and the drum 41 by the end cap 42. The top cover 32 is then placed on top, and the mounting plate is lifted above the top cover 32 and fixed by the right-angle fastener 112. The rotary drive mechanism 80 is started, causing the drum 41 to rotate. Due to the setting of the rotating shaft 33, the end cap 42 and the receiving container 50 rotate synchronously with the drum 41. The rotation of the drum 40 centrifuges and dries the material in the receiving container 50. Simultaneously, the air inlet valve 621 is opened, allowing air to enter the first chamber 6311. The air is heated by the heating mechanism 70, and then enters the second chamber 6312, exiting through the nozzle 61 into the drum 41, thus accelerating the drying process. After centrifugal drying, the amount of sediment in the experimental runoff is measured by the weight detection element 20, allowing for calculation of the degree of soil erosion.

[0068] In summary, this utility model embodiment provides a centrifugal drying device for soil erosion simulation experiments. The device can directly receive the sediment-water flowing from the guide channel 2 of the soil erosion simulation experiment device via the receiving container 50, completing the sampling work. By driving the rotating drum 40 and the receiving container 50 to rotate, the sediment-water is centrifugally dehydrated, and combined with the sprayed heating gas to dry the sediment-water. Weighing is performed via the weight detection element 20, thus enabling the separation, drying, and weighing of sediment-water to be completed on the same device, saving the intermediate transfer process between different devices, improving the efficiency of sediment treatment, and shortening the time required.

[0069] The above description is only a preferred embodiment of the present utility model. It should be noted that for those skilled in the art, several improvements and substitutions can be made without departing from the technical principles of the present utility model, and these improvements and substitutions should also be considered within the protection scope of the present utility model.

Claims

1. A centrifugal drying device for simulating soil erosion experiments, the device being equipped with a guide channel (2) for the outflow of sediment water, characterized in that, The centrifugal drying device includes: Base (10); A weight detection element (20) is disposed on the base (10); A housing (30) is disposed on the weight detection element (20), and the housing (30) has a liquid outlet (301) and an air outlet (302); A rotating cylinder (40) is rotatably installed inside the outer casing (30), and the cylinder wall of the rotating cylinder (40) is provided with a first through hole (401); Multiple receiving containers (50) are provided, and the multiple receiving containers (50) are arranged in the circumference of the rotating cylinder (40) inside the rotating cylinder (40). The side wall of the receiving container (50) is provided with a second through hole (501); the receiving container (50) is used to receive the mud and sand water flowing out of the guide channel (2); An air delivery mechanism (60) includes a nozzle (61) disposed inside the rotating drum (40); A heating mechanism (70), disposed within the rotating drum (40), is used to heat the gas supplied to the nozzle (61); and A rotary drive mechanism (80) is disposed inside the housing (30). The rotary drive mechanism (80) is connected to the rotating drum (40) to drive the rotating drum (40) to rotate.

2. The centrifugal drying device for soil erosion simulation experiments according to claim 1, characterized in that, It also includes a filter screen (51) laid on the bottom and side walls of the receiving container (50).

3. The centrifugal drying device for soil erosion simulation experiments according to claim 2, characterized in that, It also includes a pressure plate (52), which is disposed inside the receiving container (50) and presses against the filter screen (51) on the bottom wall of the receiving container (50).

4. The centrifugal drying device for soil erosion simulation experiments according to claim 1, characterized in that, The rotating drum (40) includes: A cylindrical body (41) is rotatably installed inside the outer shell (30). One end of the cylindrical body (41) has an open opening (411). The first through hole (401) is opened in the cylindrical wall of the cylindrical body (41). The rotary drive mechanism (80) is connected to the cylindrical body (41). End cap (42) is provided on the open opening (411) and connected to the cylinder (41).

5. The centrifugal drying apparatus for soil erosion simulation experiments according to claim 1 or 4, characterized in that, The outer casing (30) includes: A housing (31) is disposed on the weight detection element (20), and one end of the housing (31) is open; A top cover (32) is detachably disposed over the opening and connected to the housing (31).

6. The centrifugal drying device for soil erosion simulation experiments according to claim 5, characterized in that, The gas delivery mechanism (60) further includes: An air intake pipe (62) is provided, one end of which is connected to the top cover (32), and the other end of which is used to connect to an air source. A support tube (63) is provided inside the rotating drum (40), and the support tube (63) has a cavity (631) inside, which is connected to the air inlet pipe (62); A partition (64) is provided inside the support tube (63). The partition (64) divides the cavity (631) into a first cavity (6311) and a second cavity (6312) arranged vertically. A vent hole (641) communicating with the first cavity (6311) is provided on the partition (64). The heating mechanism (70) is provided inside the first cavity (6311). An exhaust pipe (65) is disposed in the second cavity (6312) and communicates with the vent (641). The nozzle (61) is connected to the exhaust pipe (65) and extends out of the support pipe (63).

7. The centrifugal drying device for soil erosion simulation experiments according to claim 6, characterized in that, It also includes a rotating shaft (33), one end of which is rotatably connected to the rotating cylinder (40), and the other end of which is connected to the side of the top cover (32) facing the rotating cylinder (40). The rotating shaft (33) is hollow inside and connects the air intake pipe (62) and the support pipe (63).

8. The centrifugal drying device for soil erosion simulation experiments according to claim 6, characterized in that, The heating mechanism (70) includes a first heating plate (71) and a second heating plate (72), which are disposed opposite to each other on the inner wall of the first cavity (6311) to heat the gas entering the first cavity (6311).

9. The centrifugal drying device for soil erosion simulation experiments according to claim 5, characterized in that, It also includes a mounting component (11) which is detachably connected to the base (10). The mounting component (11) has a pressing part (111) at one end away from the base (10) that presses against the top cover (32).

10. The centrifugal drying device for soil erosion simulation experiments according to claim 1, characterized in that, It also includes a controller (90), and the air supply mechanism (60), the heating mechanism (70), and the rotary drive mechanism (80) are electrically connected to the controller (90).

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