CN-224216342-U - Farmland soil leachate collecting device

CN224216342UCN 224216342 UCN224216342 UCN 224216342UCN-224216342-U

Abstract

The utility model discloses a farmland soil percolate collecting device which comprises a mounting cylinder with a sealed bottom, a collecting mechanism, a liquid storage cylinder and a collecting mechanism, wherein the collecting mechanism comprises a filtrate collecting cylinder and a filtering component which is arranged on the filtrate collecting cylinder and is used for filtering soil percolate, the filtrate collecting cylinder is fixedly sleeved on the mounting cylinder and is communicated with the mounting cylinder, the liquid storage cylinder can be driven to slide and can be taken out and is arranged at the bottom of the mounting cylinder, and the liquid storage cylinder is communicated with the mounting cylinder and is used for storing the filtered soil percolate.

Inventors

TENG FEI
YANG CHAO
WANG HUANHUAN
YANG SHUFENG
SHAO JUN
LI HUAWEI
WANG SHIQI
ZHAO JING

Assignees

湖南省地球物理地球化学调查所

Dates

Publication Date: 20260508
Application Date: 20250319

Claims (8)

1. A farmland soil leachate collection device, comprising: the top of the mounting cylinder (1) is detachably and fixedly connected with a mounting cylinder cover (6); The collecting mechanism comprises a filtrate collecting cylinder (2) and a filtering component (3) which is arranged on the filtrate collecting cylinder (2) and used for filtering soil percolate, wherein the filtrate collecting cylinder (2) is fixedly sleeved on the mounting cylinder (1) and is communicated with the mounting cylinder (1); The liquid storage cylinder (4) can be driven to slide and can be taken out and is arranged at the bottom of the mounting cylinder (1), and the liquid storage cylinder (4) is communicated with the mounting cylinder (1) and is used for storing the filtered soil leachate; The bottom of a filtrate collection cylinder (2) is fixedly provided with a flow guide pipe (201), the inlet end of the flow guide pipe (201) is communicated with the interior of the filtrate collection cylinder (2), the outlet end of the flow guide pipe (201) is communicated with the interior of the installation cylinder (1), and the outlet end of the flow guide pipe (201) is higher than the top end face of the liquid storage cylinder (4).
2. The farmland soil infiltration liquid collecting device according to claim 1, wherein the liquid storage cylinder (4) comprises a cylinder body (401) and a liquid storage cylinder cover (402) fixedly arranged at the top of the cylinder body (401), and a lifting rod (5) which extends upwards is fixedly arranged at the top of the liquid storage cylinder cover (402).
3. The farmland soil percolate collecting device according to claim 2, wherein a plurality of liquid through holes (402 a) are uniformly distributed on the liquid storage cylinder cover (402) along the circumferential direction.
4. The farmland soil percolate collecting device according to claim 2, characterized in that the top of the lifting rod (5) is abutted against the bottom surface of the mounting cylinder cover (6).
5. The farmland soil percolate collecting device according to claim 1, wherein the filtering assembly (3) comprises a first annular mesh plate (301) fixedly arranged at the top of the filtrate collecting cylinder (2), a second annular mesh plate (302) arranged at the lower part of the first annular mesh plate (301), and a sand layer (303) filled between the first annular mesh plate (301) and the second annular mesh plate (302).
6. The collecting device for farmland soil percolate according to claim 5, characterized in that the first gauze (304) is attached and fixed to the top surface of the first annular mesh plate (301), and the second gauze (305) is attached and fixed to the top surface of the second annular mesh plate (302).
7. The farmland soil percolate collecting device according to claim 1, characterized in that the inlet end or the outlet end of said draft tube (201) is provided with a filter plate (201 a).
8. The farmland soil percolate collecting device according to claim 1, characterized in that the lower part of said filtrate collecting cylinder (2) is of inverted cone-shaped structure.

Description

Farmland soil leachate collecting device Technical Field The utility model relates to the technical field of soil percolate collecting devices, in particular to a farmland soil percolate collecting device. Background Soil leachate is a solution produced by leaching or seepage of soil and is an important component of soil research. Researchers can explore the processes of microbial ecology, nutrition circulation, leaching loss of pollutants such as heavy metals and the like in soil by analyzing soil leachate, and scientific basis is provided for soil improvement and agricultural sustainable development. At present, the farmland soil percolate is generally collected by integrally burying a percolate collecting device to a set sampling depth position, and meanwhile, a water pumping pipe which independently extends to the soil layer surface is arranged on the side surface of the percolate collecting device, and the water pumping pipe is connected with a water pump to finish the extraction of the soil percolate. In this way, the independent water suction pipe is arranged on the side surface of the percolate collecting device, the trend of the water suction pipe and the like are needed to be considered in burying the water suction pipe, the soil disturbance to the farmland is large, the construction efficiency is low, and meanwhile, the water pump is needed to be used for pumping, the input cost is high, and the popularization and the application of the farmland in a large area are not facilitated. In addition, the percolate collecting device is integrally buried in the soil layer, so that the collecting progress of the soil percolate is not easy to observe, and of course, a mode of completing water level monitoring through a water level sensor exists in some related technologies, but the cost investment is increased, and the popularization and the application in a large-area farmland are not easy to realize. Therefore, it is necessary to develop and design a new soil percolate collecting device, which is expected to be beneficial to improving the construction efficiency, reducing the disturbance to farmland soil, reducing the cost input and promoting the popularization and application in large-area farmland. Disclosure of utility model Accordingly, the utility model aims to provide a farmland soil percolate collecting device, which can be beneficial to improving the construction efficiency, reducing disturbance to farmland soil, reducing cost input and being beneficial to popularization and application in large-area farmland. The farmland soil percolate collecting device comprises a mounting cylinder with a sealed bottom, a collecting mechanism, a liquid storage cylinder and a filtering assembly, wherein the collecting mechanism comprises a filtrate collecting cylinder and a filtering assembly which is arranged on the filtrate collecting cylinder and is used for filtering soil percolate, the filtrate collecting cylinder is fixedly sleeved on the mounting cylinder and is communicated with the mounting cylinder, the liquid storage cylinder can be driven to slide and can be taken out and is arranged at the bottom of the mounting cylinder, and the liquid storage cylinder is communicated with the mounting cylinder and is used for storing the filtered soil percolate. Further, the liquid storage cylinder comprises a cylinder body and a liquid storage cylinder cover fixedly arranged at the top of the cylinder body, and a lifting rod which extends upwards is fixedly arranged at the top of the liquid storage cylinder cover. Further, a plurality of liquid through holes are uniformly distributed on the liquid storage cylinder cover along the circumferential direction. Further, the top of the installation cylinder is detachably and fixedly connected with an installation cylinder cover. Further, the top of the lifting rod is abutted against the bottom surface of the installation cylinder cover. Further, the filter component comprises a first annular mesh plate fixedly arranged at the top of the filtrate collecting cylinder, a second annular mesh plate arranged at the lower part of the first annular mesh plate, and a sand layer filled between the first annular mesh plate and the second annular mesh plate. Further, the top surface of the first annular mesh plate is attached with and fixed with a first gauze, and the top surface of the second annular mesh plate is attached with and fixed with a second gauze. Further, the bottom of filtrate collection section of thick bamboo has set firmly the honeycomb duct, the entrance point of honeycomb duct and the inside intercommunication of filtrate collection section of thick bamboo, the exit end and the inside intercommunication of installation section of thick bamboo of honeycomb duct, and the exit end of honeycomb duct is higher than the top face of stock solution section of thick bamboo. Further, a filter plate is arranged at the inlet end or the outlet end of the flow guide pipe. Fu