An automatic stirring sampling device for runoff and sediment in a slope runoff collection bucket

Abstract

The invention discloses an automatic stirring sampling device for runoff sediment in a collecting bucket of a slope runoff area, which mainly includes a stirring system, a sampling system and a control system; the characteristics are: the stirring system can be installed on collecting buckets of different specifications, the control system includes a controller and a power supply system, the controller is connected to the power supply system through a signal line, and the power supply system is connected to the stirring system and the sampling system through a power line. The advantages of the invention are: an automatic stirring sampling device for runoff sediment in a collecting bucket of a slope runoff area, fully automatic sampling, saving manpower and material resources, shortening sampling time, template sampling process, reducing human sampling errors, improving sample representativeness, and greatly improving sampling measurement accuracy.

Description

Technical Field

[0001] The invention belongs to the field of soil and water conservation, and relates to a field slope runoff sampling device, in particular to an automatic stirring sampling device for runoff sediment in a slope runoff collection bucket in a small area. Background Art

[0002] Quantitative monitoring of soil and water loss can provide basic data for scientific research, prediction and forecast of soil and water loss, and provide a scientific basis for the prevention and control of soil and water loss. Observation of sediment content is the most important indicator for monitoring runoff plots, and is the key to accurately obtaining the amount of soil erosion. At present, the monitoring of runoff sediment in runoff plots still collects runoff sediment in the form of multi-stage diversion of collecting buckets, and manually samples and measures the sediment content in the collecting buckets. The commonly used method for sampling and measuring the sediment content in the collecting bucket is manual stirring sampling measurement. Manual stirring sampling is to stir the sandy water in the collecting bucket (pool) by manpower, and take out a certain volume of muddy water sample from the bucket while stirring. In areas with low sand content, the relative error of the manual stirring method is 30%-50%; in areas with high sand content, the average relative error of the manual stirring method even reaches 83.05%.

[0003] In the past, manual sampling had the following defects: 1. It consumed a lot of manpower and the sampling was slow. 2. The sampling time could not be accurately controlled, and the sampling time could not be better arranged during continuous rainfall. 3. Due to the large human error and random error caused by manual stirring sampling, the measurement accuracy was low. This technology overcomes the above defects. Summary of the invention

[0004] The purpose of the present invention is to provide an automatic stirring sampling device for runoff sediment in a slope runoff area collecting bucket, which can automatically sample under manual operation in the field, saving manpower; it can accurately control and reduce sampling time and reduce sampling errors.

[0005] The technical solution adopted by the present invention is as follows: an automatic stirring sampling device for runoff sediment in a slope runoff area collecting bucket, mainly including a stirring system, a sampling system and a control system; it is characterized in that: the stirring system can be installed on collecting buckets of different specifications, the control system includes a controller and a power supply system, the controller controls the power supply system through a signal line, and the power supply system is connected to the stirring system and the sampling system through a power line.

[0006] Furthermore, the stirring system is mainly composed of a movable bracket and a stirring device, wherein the stirring device includes a stirring motor and a collecting barrel stirring paddle. The movable bracket can be installed on the collecting barrel and can be detachable and adjustable in size to adapt to collecting barrels of different diameters. The stirring motor is fixed in the middle position of the movable bracket, and the lower end of the stirring motor is connected to the collecting barrel stirring paddle.

[0007] Furthermore, the movable bracket is a retractable rectangular stainless steel plate, with grab hooks at both ends of the movable bracket, which can be snapped onto the collecting barrel to ensure that the bracket is fixed; the movable bracket has a hole in the center for fixing the stirring motor, and the movable bracket has a water intake hole on one side.

[0008] Furthermore, the sampling system is composed of a first sampling device, a stirring barrel agitator and a second sampling device.

[0009] Furthermore, the first sampling device is composed of a water intake pipe, a flow guide pipe, a water pump, and a mixing barrel. The water intake pipe is arranged on the water intake hole of the movable bracket; the water intake pipe is connected to the flow guide pipe at the upper end and connected to the water pump; the mixing barrel is divided into two parts, the upper part is a transparent cylindrical structure, the lower part is a stainless steel funnel, the bottom is equipped with an electric-controlled ball valve, and the top is a transparent round cover made of acrylic material with holes. The water intake pipe is a PVC pipe with good stability and is not affected by the stirring water flow. The runoff sediment is extracted from the collecting barrel into the mixing barrel by the water pump. The transparent cylindrical structure material of the upper part of the mixing barrel is an acrylic cylinder with a radius of 30 cm, and the lower stainless steel funnel is polished smooth.

[0010] Furthermore, the mixing barrel agitator is a belt-type agitator, which is composed of a small motor, a belt, a wheel shaft, and a stirring paddle. A wheel shaft is provided on the top of the center of the mixing barrel, the wheel shaft is connected to the stirring paddle, the stirring paddle is deep in the mixing barrel, the small motor is located at the edge of the mixing barrel cover, the belt connects the wheel shaft and the small motor, and the small motor is connected to the power supply system. The rotation of the small motor drives the belt through friction, so that the wheel shaft and the stirring paddle rotate.

[0011] Furthermore, the second sampling device is composed of a guide tube, an extraction peristaltic pump, and a constant volume bucket, one end of the guide tube is connected to the stirring bucket, the other end of the guide tube is connected to the constant volume bucket, and an extraction peristaltic pump is arranged in the middle of the guide tube. The extraction peristaltic pump extracts sand-containing water from the stirring bucket into the constant volume bucket.

[0012] Furthermore, the constant volume bucket is divided into two parts, the upper part is a transparent cylindrical structure with a capacity scale, the lower part is a stainless steel funnel, the bottom is equipped with an electric control ball valve, and the top is a transparent round cover made of acrylic with holes. The transparent cylindrical structure material of the upper part of the constant volume bucket is an acrylic cylinder, and the lower stainless steel funnel is polished and smooth; the fixed volume of water sample is extracted by the running extraction time of the peristaltic pump; after the volume is fixed, the electric control ball valve is opened to release water into the sampling box.

[0013] Furthermore, the power supply system is installed at the bottom of the sampling system, consists of a battery and a power switch, is connected to the stirring system and the sampling system, and controls the overall power switch.

[0014] Furthermore, the controller is connected to the power supply system through a signal line, and the working time of each device is controlled by controlling the power supply time of each device; the controller is composed of a microprocessor, a memory, a relay control circuit, and a touch screen liquid crystal.

[0015] Stirring motor 12V 60W, including 240 rpm reducer.

[0016] The water pump is a 12V 120W impeller centrifugal pump.

[0017] The peristaltic pump is 12V 10W, sw3n40, 580ml / min.

[0018] The small motor is a 12V 5W 3500 rpm optical axis motor.

[0019] The electric control ball valve for the mixing tank adopts DN25, 12V electric control ball valve, and the electric control ball valve for the constant volume tank adopts DN15, 12V electric control ball valve.

[0020] The microprocessor is the brain of the controller and plays a commanding role. Its main functions are:

[0021] 1. Set the start time and running time of each relay, and set it as a sampling plan and a cleaning plan.

[0022] 2. Run the program set by the user to make each relay work and complete sampling and cleaning.

[0023] The memory can store the sampling and flushing schemes set by the user.

[0024] The relay control circuit and the controller realize the opening and stopping of the electric-controlled ball valve for pumping, stirring and draining water through the relay control circuit and the relay.

[0025] The controller has an editing function, which can set the workflow and realize block management to meet the needs of various working modes. After setting the working template in advance, the operation is simple and the operation is stable.

[0026] The invention has the advantages of providing an automatic stirring sampling device for runoff sediment in a slope runoff collection bucket.

[0027] 1. Fully automatic sampling, saving manpower and material resources, shortening sampling time

[0028] 2. The sampling time is fixed, which is conducive to the arrangement of sampling time during continuous rainfall.

[0029] 3. The sampling process is templated to reduce human sampling errors, improve sample representativeness, and improve sampling measurement accuracy. BRIEF DESCRIPTION OF THE DRAWINGS

[0030] Figure 1It is a schematic diagram of the structure of the present invention.

[0031] Figure 2 It is a schematic structural diagram of the stirring system of the present invention.

[0032] Figure 3 It is a schematic diagram of the structure of the sampling system and the control system of the present invention.

[0033] Figure 4 Detailed diagram of the sampling system of the present invention.

[0034] Figure 5 It is a schematic diagram of the control system of the present invention.

[0035] In the figure, there are a stirring system 1, a sampling system 2, a control system 3, a collecting bucket 4, a controller 5, a power supply system 6, a signal line 7, a power line 8, a movable bracket 9, a stirring motor 10, a collecting bucket stirring paddle 11, a grab hook 12, a water intake hole 13, a water intake pipe 14, a flow guide pipe 15, a water pump 16, a stirring bucket 17, a transparent cylindrical structure 18, a stainless steel funnel 19, an electric-controlled ball valve 20 for the stirring bucket, a transparent round cover 21, a small motor 22, a belt 23, an axle 24, a stirring paddle 25, an extraction peristaltic pump 26, a constant volume bucket 27, a microprocessor 28, a memory 29, a relay control circuit 30, a touch screen LCD 31, a power supply 32, a switch 33, and an electric-controlled ball valve 34 for the constant volume bucket. DETAILED DESCRIPTION

[0036] The present invention works and is implemented in this way: an automatic stirring sampling device for runoff sediment in a slope runoff area collecting bucket mainly includes a stirring system 1, a sampling system 2 and a control system 3; it is characterized in that: the stirring system 1 can be installed on a collecting bucket 4 of different specifications, the control system 3 includes a controller 5 and a power supply system 6, the controller 5 is connected to the power supply system 6 through a signal line 7, and the power supply system 6 is connected to the stirring system 1 and the sampling system 2 through a power line 8.

[0037] Among them, the stirring system 1 is mainly composed of a movable bracket 9 and a stirring device, wherein the stirring device includes a stirring motor 10 and a collecting barrel stirring paddle 11. The movable bracket 9 can be installed and mounted on the collecting barrel 4, and the stirring motor 10 is fixed in the middle position of the movable bracket 9. The lower end of the stirring motor 10 is connected to the collecting barrel stirring paddle 11.

[0038] Among them, the movable bracket 9 is a retractable rectangular stainless steel plate, and grab hooks 12 are provided at both ends of the movable bracket 9. The grab hooks 12 can be buckled on the collecting barrel 4 to ensure that the bracket is fixed; the movable bracket 9 has a hole in the center for fixing the stirring motor 11, and the movable bracket has a water intake hole 13 on one side thereof.

[0039] The sampling system 2 is composed of a first sampling device, a stirring barrel stirrer and a second sampling device.

[0040] The first sampling device is composed of a water intake pipe 14, a flow guide pipe 15, a water pump 16, and a mixing barrel 17. The water intake pipe 14 is arranged on the water intake hole 13 of the movable bracket 9; the upper end of the water intake pipe 14 is connected to the flow guide pipe 15, which is connected to the water pump 16, and the flow guide pipe 15 is connected to the upper part of the mixing barrel 17; the mixing barrel 17 is divided into two parts, the upper part is a transparent cylindrical structure 18, the lower part is a stainless steel funnel 19, the bottom is equipped with an electric control ball valve 20 for the mixing barrel, and the top is a transparent round cover 21 with holes made of acrylic material. The water intake pipe is a PVC pipe with good stability and is not affected by the stirring water flow. The runoff sediment is extracted from the collecting barrel into the mixing barrel by the water pump. The transparent cylindrical structure material of the upper part of the mixing barrel is an acrylic cylinder with a radius of 30cm, and the lower stainless steel funnel is polished and smooth.

[0041] Among them, the mixing barrel agitator is a belt-type agitator, which is composed of a small motor 22, a belt 23, an axle 24, and a stirring paddle 25. A wheel axle 24 is provided on the top center of the mixing barrel 17, and the wheel axle 24 is connected to the stirring paddle 25. The stirring paddle 25 is deep in the mixing barrel 17. The small motor 22 is located at the edge of the cover of the mixing barrel 17. The belt 23 connects the wheel axle 24 and the small motor 22. The small motor 22 is connected to the power supply system; the rotation of the small motor 22 drives the belt 23 through friction, so that the wheel axle 24 and the stirring paddle 25 rotate.

[0042] The second sampling device is composed of a guide tube 15, an extraction peristaltic pump 26, and a constant volume bucket 27. One end of the guide tube 15 is connected to the stirring bucket 17, and the other end of the guide tube 15 is connected to the constant volume bucket 27. An extraction peristaltic pump 26 is arranged in the middle of the guide tube 15. The extraction peristaltic pump extracts runoff sediment from the stirring bucket into the constant volume bucket.

[0043] The constant volume bucket is divided into two parts, the upper part is a transparent cylindrical structure with a capacity scale, the lower part is a stainless steel funnel, the bottom is equipped with a constant volume bucket electric control ball valve 34, and the top is a transparent round cover with holes made of acrylic. The transparent cylindrical structure material of the upper part of the constant volume bucket is an acrylic cylinder, and the lower stainless steel funnel is polished and smooth; the fixed volume of water sample is extracted by the running extraction time of the peristaltic pump; after the volume is fixed, the electric control ball valve is opened to release water into the sampling box.

[0044] The power supply system is installed at the bottom of the sampling system, and is composed of a power supply 32 and a switch 33, which is connected to the stirring system and the sampling system to control the overall power switch.

[0045] The controller is connected to the power supply system through a signal line, and controls the working time of each device by controlling the power supply time of each device; the controller is composed of a microprocessor 28, a memory 29, a relay control circuit 30, and a touch screen LCD 31.

[0046] Stirring motor 12V 60W, including 240 rpm reducer.

[0047] The water pump is a 12V 120W impeller centrifugal pump.

[0048] The peristaltic pump is 12V 10W, sw3n40, 580ml / min.

[0049] The small motor is a 12V 5W 3500 rpm optical axis motor.

[0050] The microprocessor used is HC32L110C6PA from HDSC (HuaDa).

[0051] The memory uses HYNIX memory.

[0052] The relay control circuit board uses Huaqiu Circuit's 14680.

[0053] The touch screen LCD is RSL-70TP (seven inches) from Ruikong.

[0054] The electric control ball valve for the mixing tank adopts DN25, 12V electric control ball valve, and the electric control ball valve for the constant volume tank adopts DN15, 12V electric control ball valve.

[0055] The bottom of the collecting bucket stirring paddle is made of stainless steel, with two blades. The collecting bucket stirring paddle is covered with a PVC pipe to enhance the strength of the collecting bucket stirring paddle. A 12V60W stirring motor with a 240-rpm reducer is inserted at the top. The length of the collecting bucket stirring paddle is longer than the water intake pipe to avoid contact during stirring.

[0056] The microprocessor is the brain of the controller and plays a commanding role. Its main functions are:

[0057] 1. Set the start time and running time of each relay, and set it as a sampling plan and a cleaning plan.

[0058] 2. Run the program set by the user to make each relay work and complete sampling and cleaning.

[0059] The memory can store the sampling and flushing schemes set by the user.

[0060] The relay control circuit and the controller realize the start and stop of the pumping, stirring and drainage motors through the relay control circuit and the relay.

[0061] The controller has an editing function, which can set the workflow and realize block management to meet the needs of various working modes. After setting the working template in advance, the operation is simple and the operation is stable.

[0062] Specific workflow: Execution plan input: The user inputs the sampling and flushing plan into the control system through the touch screen LCD and stores it according to the actual sampling and flushing requirements.

[0063] Execution program: Circularly scan the sampling and flushing schemes, compare the sampling and flushing time parameters through the internal timer, and perform corresponding logical operations and outputs according to the sampling and flushing schemes.

[0064] Control output: The microprocessor controls the corresponding pumping, stirring and drainage operations through the relay control circuit and relay.

[0065] The user inputs the sampling scheme and flushing scheme on the controller side and stores them according to the actual sampling and flushing requirements. Set the power on / off time of each relay and store it as a scheme. After pressing the run scheme button, each relay starts according to the set start time, such as:

[0066] The stirring motor of the collecting bucket starts, and the water pump starts after 30 seconds, and the belt-type agitator of the mixing bucket starts. Both are in the mode of stirring and sampling. After the first sampling is completed, the stirring paddle and the water pump of the collecting bucket stop running, and the belt-type agitator of the mixing bucket is still running. After 30 seconds, the peristaltic pump starts to extract the water sample from the mixing bucket into the constant volume bucket. After the second sampling is completed, the belt-type agitator of the mixing bucket stops running, and the electric control ball valve opens to complete the sampling. Then the electric control ball valve of the mixing bucket is closed, the water intake pipe is placed in clean water, the water pump is started, and cleaning begins. The belt-type agitator of the mixing bucket is started, and the peristaltic pump is started to rinse the constant volume bucket first. After the rinsing is completed, the peristaltic pump and the electric control ball valve of the constant volume bucket are closed in turn. Then the electric control ball valve of the mixing bucket is opened to complete the cleaning of the mixing bucket. After the cleaning is completed, the water pump and the electric control ball valve of the mixing bucket are closed in turn.

Claims

1. An automatic stirring sampling device for runoff sediment in a slope runoff collection bucket, mainly including a stirring system, a sampling system and a control system; characterized in that : The stirring system can be installed on collecting barrels of different specifications. The control system includes a controller and a power supply system. The controller is connected to the power supply system through a signal line, and the power supply system is connected to the stirring system and the sampling system through a power line; The stirring system is mainly composed of a movable bracket and a stirring device, wherein the stirring device includes a stirring motor and a collecting bucket stirring paddle. The movable bracket can be installed on the collecting bucket, the stirring motor is fixed in the middle position of the movable bracket, and the lower end of the stirring motor is connected to the collecting bucket stirring paddle. The movable bracket is a retractable rectangular stainless steel plate, with hooks at both ends of the movable bracket, which can be snapped onto the collecting bucket to ensure that the bracket is fixed; a hole is provided at the center of the movable bracket for fixing the stirring motor, and a water intake hole is provided on one side of the movable bracket; The sampling system is composed of a first sampling device, a stirring barrel agitator and a second sampling device; The first sampling device is composed of a water intake pipe, a flow guide pipe, a water pump, and a mixing barrel. The water intake pipe is arranged on the water intake hole of the movable bracket, and the upper end is connected to the flow guide pipe and then connected to the water pump; the flow guide pipe is connected to the upper part of the mixing barrel; the mixing barrel is divided into two parts, the upper part is a transparent cylindrical structure, the lower part is a stainless steel funnel, the bottom is equipped with an electric control ball valve, and the top is a transparent round cover made of acrylic material with holes; The mixing barrel agitator is a belt-type agitator, which consists of a small motor, a belt, a wheel shaft, and a stirring paddle. A wheel shaft is provided on the top of the center of the mixing barrel, and the wheel shaft is connected to the stirring paddle, which is deep in the mixing barrel. The small motor is located at the edge of the mixing barrel cover, and the belt connects the wheel shaft and the small motor, which is connected to the power supply system. The rotation of the small motor drives the belt through friction, so that the wheel shaft and the stirring paddle rotate; The second sampling device is composed of a guide tube, an extraction peristaltic pump, and a constant volume bucket. One end of the guide tube is connected to the stirring bucket, and the other end of the guide tube is connected to the constant volume bucket. The extraction peristaltic pump is arranged in the middle of the guide tube. The constant volume barrel is divided into two parts, the upper part is a transparent cylindrical structure with a capacity scale, the lower part is a stainless steel funnel, the bottom is equipped with an electric-controlled ball valve, and the top is a transparent round cover made of acrylic material with holes.

2. According to any one of the claims 1, a slope runoff area flow collection bucket runoff sediment automatic stirring sampling device, characterized in that The power supply system is installed at the bottom of the sampling system, and is composed of a battery and a power switch, and controls the overall power switch.

3. The automatic stirring sampling device for runoff sediment in a slope runoff collection bucket according to claim 2 is characterized in that : The controller controls the working time of each device by controlling the power supply time of each device; the controller is composed of a microprocessor, a memory, a relay control circuit, and a touch screen liquid crystal.

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