CN111781025A - A device for automatic agitation and sampling of runoff sediment in the collecting bucket of a slope runoff area - Google Patents

Abstract

The invention discloses an automatic agitation and 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; and is characterized in that the stirring system can be installed on collecting buckets of different specifications, and controls the The 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 the power supply line. The advantages of the invention are as follows: an automatic agitating and 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, templated sampling process, reducing artificial sampling errors, and improving sample representativeness. Greatly improve the sampling measurement accuracy.

Description

A device for automatic agitation and sampling of runoff sediment in the collecting bucket of a slope runoff area

technical field

The invention belongs to the field of soil and water conservation, and relates to a field slope runoff sampling device, in particular to a slope runoff community collecting bucket runoff sediment automatic stirring sampling device.

Background technique

Quantitative monitoring of soil erosion can provide basic data for soil erosion research, prediction and forecasting, and provide a scientific basis for soil erosion prevention and control. Sediment content observation is the most important indicator for monitoring runoff plots, and it is the key to accurately obtain soil erosion. At present, the runoff sediment monitoring in the runoff area still collects the runoff sediment in the way of multi-stage diversion in the collecting bucket, and the sediment content in the collecting bucket is manually sampled and measured. 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 sand-containing water body in the collecting bucket (pool) by manpower, and take out a certain volume of muddy water from the bucket while stirring. water sample. In areas with low sand content, the relative error of manual stirring method is 30%-50%; in areas with high sand content, the average relative error of manual stirring method even reaches 83.05%.

The manual sampling in the past has the following defects: 1. It consumes a lot of manpower and the sampling is slow. 2. The sampling time cannot be precisely controlled, and the sampling time cannot be better arranged during continuous rainfall. 3. Due to the large artificial error of manual stirring and sampling, the random error is large, and the measurement accuracy is low. The present technology overcomes the above-mentioned drawbacks.

SUMMARY OF THE INVENTION

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

The technical scheme adopted in the present invention is as follows: an automatic agitation and 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; it is characterized in that: the stirring system can be installed in collecting currents of different specifications. On the barrel, 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 with the stirring system and the sampling system through the power supply line.

Further, the stirring system is mainly composed of a movable bracket and a stirring device, wherein the stirring device includes a stirring motor and a stirring paddle of a collecting bucket. In the collecting bucket, the stirring motor is fixed at the middle position of the movable bracket, and the lower end of the stirring motor is connected with the stirring paddle of the collecting bucket.

Further, the movable bracket is a retractable rectangular stainless steel plate, and both ends of the movable bracket are provided with grabbing hooks, which can be snapped on the collecting bucket to ensure that the bracket is fixed; the center of the movable bracket has a hole for fixing the stirring motor. , the movable bracket is provided with a water intake hole on one side.

Further, the sampling system is composed of a first sampling device, a stirring tank agitator and a second sampling device.

Further, the first sampling device is composed of a water intake pipe, a guide pipe, a suction pump, and a stirring bucket, and the water intake pipe is arranged on the water intake hole of the movable support; It consists of two parts: the upper part is a transparent cylindrical structure, the lower part is a stainless steel funnel, the bottom is equipped with an electronically controlled ball valve, and the top is a transparent acrylic cover with holes. Among them, the water intake pipe is a PVC pipe, which has good stability and is not affected by the stirring water flow. The runoff sediment is extracted from the collecting tank to the mixing tank by the pump. The transparent cylindrical structure material on the upper part of the mixing tank is an acrylic material cylinder with a radius of 30cm. , the lower stainless steel funnel is polished smooth.

Further, 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 stirring barrel, and the wheel shaft is connected to the stirring paddle. The stirring paddle penetrates into the stirring barrel, and the small motor Located at the edge of the mixing tank cover, the belt is connected to the axle and the small motor, and the small motor is connected to the power system. The rotation of the small motor drives the belt through friction, so that the axle and the stirring paddle rotate.

Further, the second sampling device is composed of a diversion tube, an extraction peristaltic pump, and a constant volume bucket. One end of the diversion tube is connected to the stirring bucket, the other end of the diversion tube is connected to the constant volume bucket, and an extraction peristaltic pump is arranged in the middle of the diversion tube. . The pumping peristaltic pump draws the sandy water from the mixing bucket into the constant volume bucket.

Further, the constant volume bucket is divided into upper and lower 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 electronically controlled ball valve, and the top is a perforated acrylic transparent round cover . The upper transparent cylindrical structure of the constant volume bucket is made of acrylic, and the lower stainless steel funnel is polished and smooth; a fixed volume of water sample can be extracted through the running time of the peristaltic pump; after the constant volume, open the electronically controlled ball valve to discharge water into the sampling box.

Further, the power supply system is installed at the bottom of the sampling system and consists of a battery and a power switch, which is connected to the stirring system and the sampling system, and controls the general power switch.

Further, the controller is connected with 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.

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

The suction pump is a 12V 120W impeller centrifugal pump.

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

The small motor is a 12V 5W3500 rpm light shaft motor.

The electric control ball valve of the mixing tank adopts DN25, 12V electric control ball valve, and the electric control ball valve of constant volume drum adopts DN15, 12V electric control ball valve.

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

1. Set the starting time and running time of each relay, and set the sampling plan and cleaning plan.

2. Run the program set by the user, make each relay work, complete sampling and cleaning.

The memory can store sampling and flushing protocols set by the user.

In the relay control circuit, the controller realizes the opening and stopping of the electric control ball valve for pumping, stirring and draining through the relay control circuit and the relay.

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

The advantages of the invention are: an automatic stirring and sampling device for the runoff sediment in the collecting bucket of the slope runoff area.

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

2. The sampling time is fixed, which is beneficial to the sampling time arrangement in continuous rainfall.

3. The sampling process is templated to reduce artificial sampling errors, improve the representativeness of samples, and improve the accuracy of sampling measurement.

Description of drawings

FIG. 1 is a schematic structural diagram of the present invention.

FIG. 2 is a schematic structural diagram of the stirring system of the present invention.

FIG. 3 is a schematic structural diagram of the sampling system and the control system of the present invention.

FIG. 4 is a detailed view of the sampling system of the present invention.

FIG. 5 is a schematic diagram of the control system of the present invention.

In the figure, stirring system 1, sampling system 2, control system 3, collecting tank 4, controller 5, power supply system 6, signal line 7, power line 8, movable bracket 9, stirring motor 10, collecting tank stirring paddle 11. Grab hook 12, water intake hole 13, water intake pipe 14, diversion pipe 15, suction pump 16, mixing bucket 17, transparent cylindrical structure 18, stainless steel funnel 19, mixing bucket electric control ball valve 20, transparent dome 21, small Motor 22, belt 23, axle 24, stirring paddle 25, peristaltic pump 26, constant volume bucket 27, microprocessor 28, memory 29, relay control circuit 30, touch screen LCD 31, power supply 32, switch 33, constant volume bucket electricity Ball control valve 34.

Detailed ways

The present invention works and is implemented in this way. An automatic agitation and sampling device for runoff sediment in a collecting bucket of a slope runoff community 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 collecting buckets 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 supply line 8 . .

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 stirring paddle 11 of a collecting bucket. The motor 10, the lower end of the stirring motor 10 is connected to the stirring paddle 11 of the collecting bucket.

The movable bracket 9 is a retractable rectangular stainless steel plate, and both ends of the movable bracket 9 are provided with hooks 12. The hooks 12 can be buckled on the collecting bucket 4 to ensure that the bracket is fixed; the center of the movable bracket 9 has a hole for use In order to fix the stirring motor 11, the movable support is provided with a water intake hole 13 on one side thereof.

Wherein, the sampling system 2 is composed of a first sampling device, a stirring tank agitator and a second sampling device.

The first sampling device is composed of a water intake pipe 14, a guide pipe 15, a suction pump 16, and a mixing bucket 17. The water intake pipe 14 is arranged on the water intake hole 13 of the movable bracket 9; The suction pump 16 and the guide pipe 15 are connected to the upper part of the mixing bucket 17; the mixing bucket 17 is divided into upper and lower parts, the upper part is a transparent cylindrical structure 18, the lower part is a stainless steel funnel 19, and the bottom is equipped with a mixing bucket electric control ball valve 20 , the top is a transparent dome 21 of acrylic material with holes. Among them, the water intake pipe is a PVC pipe, which has good stability and is not affected by the stirring water flow. The runoff sediment is pumped from the collecting tank to the mixing tank by the pump. The transparent cylindrical structure material on the upper part of the mixing tank is an acrylic material cylinder with a radius of 30cm. , the lower stainless steel funnel is polished smooth.

Among them, the mixing barrel agitator is a belt-type agitator, which is composed of a small motor 22, a belt 23, a wheel shaft 24, and a stirring paddle 25. A wheel shaft 24 is provided on the top of the center of the stirring barrel 17, and the wheel shaft 24 is connected to the stirring paddle 25. The stirring paddle 25 penetrates deep into the 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 is connected to the axle 24 and the small motor 22, and the small motor 22 is connected to the power supply system; Paddle 25 rotates.

The second sampling device is composed of a diversion tube 15, a peristaltic pump 26, and a constant volume bucket 27. One end of the diversion tube 15 is connected to the stirring bucket 17, and the other end of the diversion tube 15 is connected to the constant volume bucket 27. The diversion tube A peristaltic pump 26 is provided in the middle of 15 . The pumping peristaltic pump draws the runoff sediment from the mixing tank into the constant volume tank.

Among them, the constant volume bucket is divided into upper and lower parts, the upper part is a transparent cylindrical structure with a capacity scale, the lower part is a stainless steel funnel, the bottom part is equipped with an electric control ball valve 34 for the constant volume bucket, and the top is made of acrylic material with holes Transparent dome. The upper transparent cylindrical structure of the constant volume bucket is made of acrylic, and the lower stainless steel funnel is polished and smooth; a fixed volume of water sample can be extracted through the running time of the peristaltic pump; after the constant volume, open the electronically controlled ball valve to discharge water into the sampling box.

The power supply system is installed at the bottom of the sampling system and consists of a power supply 32 and a switch 33, which are connected to the stirring system and the sampling system to control the general power switch.

Wherein, the controller is connected with 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; composition.

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

The suction pump is a 12V 120W impeller centrifugal pump.

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

The small motor is a 12V 5W3500 rpm light shaft motor.

The microprocessor adopts HC32L110C6PA of HDSC (Hua Da).

The memory adopts HYNIX memory.

The relay control circuit board adopts 14680 of Huaqiu Circuit.

The touch screen LCD is Ruikong's RSL-70TP (seven inches).

The electric control ball valve of the mixing tank adopts DN25, 12V electric control ball valve, and the electric control ball valve of constant volume drum adopts DN15, 12V electric control ball valve.

Further, the bottom of the stirring paddle of the collecting bucket is made of stainless steel with 2 blades. The outside of the stirring paddle of the collecting bucket is covered with PVC pipe to enhance the strength of the stirring paddle of the collecting bucket. A 12V60W stirring motor with a 240-rpm reducer is inserted at the top. The length of the stirring paddle of the collecting bucket is longer than that of the water intake pipe to avoid contact during stirring.

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

1. Set the starting time and running time of each relay, and set the sampling plan and cleaning plan.

2. Run the program set by the user, make each relay work, complete sampling and cleaning.

The memory can store sampling and flushing protocols set by the user.

In the relay control circuit, the controller realizes the start and stop of the water pumping, stirring and drainage motors through the relay control circuit and the relay.

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

Specific workflow: execution plan input: the user inputs the sampling and flushing plan into the control interior through the touch screen LCD and stores it according to the actual sampling and flushing needs.

Execution program: cyclically scan the sampling and flushing scheme, compare the time parameters of sampling and flushing through the internal timer, and perform corresponding logical operations and output according to the sampling and flushing scheme.

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

According to the actual sampling and flushing requirements, the user inputs the sampling plan and flushing plan on the controller side and stores them. Set the power on/off time of each relay and store it as a plan. After pressing the operation plan key, each relay will start according to the set starting time, such as:

The stirring motor of the collecting bucket is started, the suction pump is started after 30s, and the belt-type agitator of the mixing bucket is started, all of which are in the sampling mode while stirring. After 30s, the peristaltic pump runs, and the water sample is drawn from the mixing tank to the constant volume tank. After the secondary sampling is completed, the belt mixer of the mixing tank stops running, and the electronically controlled ball valve is opened to complete the sampling. Then the electric control ball valve of the mixing tank is closed, the water intake pipe is put into clean water, the pump is started, and the cleaning is started. Electric control ball valve for constant volume bucket. Then open the electric control ball valve of the mixing tank to complete the cleaning of the mixing tank. After the cleaning is completed, close the water pump and the electric control ball valve of the mixing tank successively.

Claims (10)

1. An automatic stirring and sampling device for runoff sediment of a flow collecting barrel in a slope runoff plot mainly comprises a stirring system, a sampling system and a control system; the method is characterized in that: the stirring system can be arranged on collecting barrels with different specifications, the control system comprises a controller and a power supply system, the controller is connected with the power supply system through a signal line, and the power supply system is connected with the stirring system and the sampling system through a power line.

2. The automatic stirring and sampling device for runoff sediment in the flow collecting bucket of the slope runoff community according to claim 1, which is characterized in that: the stirring system mainly comprises a movable support and a stirring device, wherein the stirring device comprises a stirring motor and a collecting barrel stirring paddle, the movable support can be arranged on the collecting barrel in an installing mode, the stirring motor is fixed in the middle of the movable support, and the lower end of the stirring motor is connected with the collecting barrel stirring paddle.

3. The automatic stirring and sampling device for runoff sediment in the flow collecting bucket of the slope runoff community according to claim 2, which is characterized in that: the movable support is a telescopic rectangular stainless steel plate, and the two ends of the movable support are provided with grabs which can be buckled on the flow collecting barrel to ensure the support to be fixed; the center of the movable support is provided with a hole for fixing the stirring motor, and one side of the movable support is provided with a water taking hole.

4. The automatic stirring and sampling device for runoff sediment in the flow collecting bucket of the slope runoff community according to claim 1, which is characterized in that: the sampling system is composed of a first sampling device, a stirring barrel stirrer and a second sampling device.

5. The automatic stirring and sampling device of slope runoff plot collection bucket runoff sediment of claim 4, characterized in that: the first sampling device consists of a water taking pipe, a flow guide pipe, a water suction pump and a stirring barrel, wherein the water taking pipe is arranged on a water taking hole of the movable support, and the upper end of the water taking pipe is connected with the water suction pump after being connected with the flow guide pipe; the guide pipe is connected with the upper part of the stirring barrel; the agitator divide into about two parts, and upper portion is transparent cylindric structure, and lower part is the stainless steel funnel, and the bottom is for being equipped with automatically controlled ball valve, and the top is the transparent dome of foraminiferous ya keli material.

6. The automatic stirring and sampling device of slope runoff plot collection bucket runoff sediment of claim 4, characterized in that: the stirring barrel stirrer is a belt type stirrer and consists of a small motor, a belt, a wheel shaft and a stirring paddle, the wheel shaft is arranged at the top of the center of the stirring barrel and is connected with the stirring paddle, the stirring paddle extends into the stirring barrel, the small motor is positioned at the edge of the stirring barrel cover, the belt is connected with the wheel shaft and the small motor, and the small motor is connected with a power supply system; the small-sized motor rotates to drive the belt through friction force, so that the wheel shaft and the stirring paddle rotate.

7. The automatic stirring and sampling device of slope runoff plot collection bucket runoff sediment of claim 4, characterized in that: the second sampling device is composed of a flow guide pipe, an extraction peristaltic pump and a constant volume barrel, wherein one end of the flow guide pipe is connected with the stirring barrel, the other end of the flow guide pipe is connected with the constant volume barrel, and the extraction peristaltic pump is arranged in the middle of the flow guide pipe.

8. The automatic stirring and sampling device of slope runoff plot collection bucket runoff sediment of claim 7, characterized in that: the containing barrel is divided into an upper part and a lower part, the upper part is a transparent cylindrical structure with capacity scales, the lower part is a stainless steel funnel, the bottom of the containing barrel is provided with an electric control ball valve, and the top of the containing barrel is a porous transparent round cover made of acrylic materials.

9. The automatic stirring and sampling device for runoff sediment of the collecting barrel of the slope runoff community according to any one of the claims 1 to 8, which is characterized in that:

the power supply system is arranged at the bottom of the sampling system, consists of a storage battery and a power switch and controls the total power switch.

10. The automatic stirring and sampling device for runoff sediment in the flow collecting bucket of the slope runoff community according to claim 1, which is characterized in that: the controller controls the working time of each device by controlling the power supply time of each device; the controller consists of a microprocessor, a memory, a relay control circuit and a touch screen liquid crystal.

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