A spraying device for preventing secondary salinization of soil

Abstract

The utility model relates to a kind of spraying device for preventing secondary salinization of soil, including frame, mixing barrel is installed on rack, mixing barrel is used to load fungicide solution, first notch is opened in the inside of mixing barrel, the inner bottom of first notch is W-shaped for fungicide deposition, end cap is installed on mixing barrel, and shaft is coaxially installed on end cap.The utility model is provided with mixing barrel, connecting seat, first notch, shaft, stirring rod, limiting cylinder and filter screen, first notch is W-shaped and is opened in the inside of mixing barrel to facilitate fungicide particle deposition, by the cooperation of stirring rod and the inner bottom of first notch, it is convenient to stir rod rotation when stirring the fungicide concentrated in the inner bottom of first notch, fungicide in solution is filtered by filter screen, limiting cylinder and filter screen are supported by connecting seat, the distance between filter screen and the inner bottom of first notch is enlarged, fungicide adsorbed on filter screen is reduced, thereby the stability of solution discharge is improved, to avoid spraying unit blockage, improve fungicide spraying repair effect.

Description

Technical Field

[0001] This utility model relates to the field of soil remediation technology, specifically a spraying device for preventing secondary soil salinization. Background Technology

[0002] The spraying device for preventing secondary soil salinization is a specialized device adapted to saline-alkali land management scenarios. It precisely and evenly applies salt-reducing and remediating microbial agents into the soil. Soil remediating microbial agents are a type of compound preparation containing functional microorganisms (such as Bacillus and Pseudomonas). By combining mechanical auxiliary structures with spraying technology, the microbial agents help penetrate the soil, inhibit soil salt accumulation, improve soil physicochemical properties, and prevent salt accumulation on the surface, thereby preventing secondary soil salinization. It is suitable for different salinization scenarios such as dry land and farmland.

[0003] The spraying device for preventing secondary soil salinization consists of four main modules: liquid storage and supply, spraying execution, auxiliary operations, and control and movement. These modules work together to achieve efficient spraying. The liquid storage and supply module is the foundation, containing a storage cylinder or tank. Some are equipped with a pump to stably store the inoculant and provide the power for delivery. For example, an electric pump can extract the inoculant from the storage tank and deliver it to the spraying end through pipelines. Some pipelines are equipped with solenoid valves to control the start, stop, and flow rate of delivery. The spraying execution module is responsible for precise application of the inoculant. The nozzles are often equipped with adjustable angle structures. The auxiliary operations module enhances the remediation effect. The dryland-specific model is equipped with a leveling roller to break up soil clumps. The control and movement module ensures flexible operation. Small devices are equipped with casters and handles, while large ones can be connected to agricultural machinery for towing operations. Some devices use motors, threaded rods, etc., to adjust the height and angle of the nozzles to adapt to different salinization scenarios. Existing spraying devices for preventing secondary soil salinization typically rely on simple stirring to mix the soil remediation microbial agents in the tank. This can lead to the agents and nutrient carriers settling and clumping, causing blockages in the spraying units (especially micro-nozzles). Furthermore, uneven concentration of the microbial solution severely affects the remediation effect. Summary of the Invention

[0004] The technical problem to be solved by this utility model is that when using existing spray devices for preventing secondary soil salinization, the soil remediation bacteria in the tank are easily settled and clumped due to simple stirring and mixing, which leads to nozzle blockage and affects the spraying remediation effect.

[0005] The technical solution of this utility model to solve the above-mentioned technical problems is as follows: A spraying device for preventing secondary soil salinization includes a frame, a mixing cylinder installed on the frame, the mixing cylinder being used to load a bacterial agent solution, a first slot being opened inside the mixing cylinder, the bottom of the first slot being W-shaped for bacterial agent deposition, an end cap being installed on the mixing cylinder, a rotating shaft being coaxially installed on the end cap, a stirring rod being coaxially installed on the rotating shaft, a driving device being installed on the end cap, the driving device being used to drive the rotating shaft and the stirring rod to rotate, the stirring rod breaking up the deposited bacterial agent when rotating at the bottom of the first slot, a connecting seat being coaxially installed on the mixing cylinder, the connecting seat being used to discharge the bacterial agent solution, a limiting cylinder being installed on the connecting seat, and a filter screen being coaxially installed on the limiting cylinder, the filter screen being used to filter the bacterial agent solution.

[0006] The beneficial effects of this utility model are as follows: By providing a mixing cylinder, a connecting seat, a first slot, a rotating shaft, a stirring rod, a limiting cylinder, and a filter screen, the first slot is W-shaped and located inside the mixing cylinder to facilitate the deposition of microbial agent particles. The stirring rod cooperates with the inner bottom of the first slot, making it easy to break up the microbial agent concentrated at the bottom of the first slot when the stirring rod rotates. The microbial agent in the solution is filtered through the filter screen. The connecting seat supports the limiting cylinder and the filter screen, increasing the distance between the filter screen and the inner bottom of the first slot, reducing the adsorption of microbial agent on the filter screen, thereby improving the stability of the solution discharge, thus avoiding clogging of the spraying unit and improving the repair effect of microbial agent spraying.

[0007] Based on the above technical solution, the present invention can be further improved as follows.

[0008] Furthermore, the drive device includes a servo motor mounted on the end cover. The output end of the servo motor is fixedly connected to the rotating shaft. When the servo motor is started, it drives the rotating shaft and the stirring rod to rotate inside the first slot, which improves the convenience of rotating the shaft.

[0009] Furthermore, a brush plate is installed at the bottom of the rotating shaft. The brush plate is inserted into the middle of the limiting cylinder. When the rotating shaft rotates, it drives the brush plate to rotate on the surface of the filter screen, which improves the convenience of cleaning the filter screen.

[0010] Furthermore, a second slot is provided on the limiting cylinder for the insertion of the rotating shaft. A collar is engaged with the inner wall of the second slot and is fitted onto the rotating shaft. The collar has several concentric annular grooves, which improves the sealing performance of the rotating shaft as it rotates on the limiting cylinder.

[0011] Furthermore, the bottom end of the limiting cylinder is provided with a threaded groove for the connecting seat to be threaded, which improves the ease of installation of the limiting cylinder.

[0012] Furthermore, a spray assembly is installed on the frame, which includes a water pump installed on the frame, a first pipe installed at one end of the water pump outlet, a second pipe installed at one end of the water pump inlet, a spray pipe installed at one end of the frame, and a tensioning sleeve installed at one end of the spray pipe.

[0013] Furthermore, the other end of the first pipe is connected to the spray pipe, and the other end of the second pipe is connected to the bottom of the connecting seat. Several nozzles are installed on the spray pipe. When the water pump is started, a negative pressure is generated to draw the bacterial agent solution inside the first slot into the limiting cylinder, and then transport it into the spray pipe through the second pipe and the first pipe. After being atomized by the nozzles on the spray pipe, it is sprayed onto the soil.

[0014] Furthermore, a feed hopper is installed on the end cap. The feed hopper is funnel-shaped and supplies the bacterial agent and aqueous solution to the first slot.

[0015] The beneficial effects of adopting the above-mentioned further solution are as follows: By setting a brush plate, which is inserted into the limiting cylinder, the rotating shaft can drive the brush plate to rotate synchronously when it rotates. When the brush plate moves on the surface of the filter screen, it can clean the filter screen, thereby improving the stability of the filter screen filtration. By setting a second slot and a collar, the second slot is opened on the limiting cylinder for the rotating shaft to rotate. The collar is engaged inside the second slot and sleeved on the rotating shaft. Several concentric annular grooves are opened on the inner side wall of the collar to increase the contact area between the collar and the rotating shaft and improve the sealing performance at the connection between the rotating shaft and the limiting cylinder. Attached Figure Description

[0016] Figure 1 This is a schematic diagram of the overall structure of the present invention; Figure 2 This is a schematic cross-sectional view of the overall structure of this utility model; Figure 3 This is a schematic diagram of the unfolded structure of the mixing cylinder of this utility model; Figure 4 This is a schematic diagram of the limiting cylinder structure of this utility model; Figure 5 This is a schematic diagram of the structure of the stirring rod of this utility model; Figure 6 This is a cross-sectional view of the limiting cylinder of this utility model; The attached diagram lists the components represented by each number as follows: 1. Frame; 2. Mixing cylinder; 3. End cap; 4. Servo motor; 5. Water pump; 6. Spray pipe; 7. First pipe; 8. Second pipe; 9. Tightening sleeve; 10. Connecting seat; 11. First slot; 12. Feed hopper; 13. Rotating shaft; 14. Stirring rod; 15. Limiting cylinder; 16. Filter screen; 17. Brush plate; 18. Threaded groove; 19. Second slot; 20. Collar. Detailed Implementation

[0017] The principles and features of this utility model are described below with reference to the accompanying drawings. The examples given are only for explaining this utility model and are not intended to limit the scope of this utility model.

[0018] like Figure 1-6As shown, a spraying device for preventing secondary soil salinization includes a frame 1 for support and limiting. A mixing cylinder 2 is bolted to the frame 1 and is used to load a microbial agent solution. The mixing cylinder 2 has a first slot 11 inside, and the bottom of the first slot 11 is W-shaped to allow the microbial agent to deposit. An end cap 3 is threaded onto the mixing cylinder 2 to seal the first slot 11 and prevent the solution from overflowing. A feed hopper 12 is installed on the end cap 3. The feed hopper 12 is funnel-shaped and supplies the microbial agent and aqueous solution to the first slot 11. A rotating shaft 13 is coaxially mounted on the end cap 3, and a stirring device is coaxially mounted on the rotating shaft 13. The bottom end of the stirring rod 14 is adapted to the inner bottom of the first slot 11. A drive device is installed on the end cover 3 to drive the rotating shaft 13 and the stirring rod 14 to rotate. The drive device includes a servo motor 4 installed on the end cover 3. The output end of the servo motor 4 is fixedly connected to the rotating shaft 13. When the servo motor 4 is started, it drives the rotating shaft 13 and the stirring rod 14 to rotate inside the first slot 11, improving the convenience of rotating the rotating shaft 13. When the stirring rod 14 rotates inside the bottom of the first slot 11, it breaks up the deposited bacterial agent. A connecting seat 10 is coaxially installed on the mixing cylinder 2. A valve is installed on the connecting seat 10 to control the connecting seat. When valve 10 is opened, the connecting seat 10 discharges the bacterial agent solution. A limiting cylinder 15 is installed on the connecting seat 10, and a filter screen 16 is coaxially mounted on the limiting cylinder 15. The filter screen 16 has a double-layer composite structure and is cylindrical. The outer layer of the filter screen 16 is made of metal with a mesh pattern, and the inner layer is made of non-woven fabric, woven onto the outer layer. The limiting cylinder 15 is made of stainless steel and is used to support and limit the filter screen 16. The filter screen 16 is used to filter the bacterial agent solution. A threaded groove 18 is provided at the bottom of the limiting cylinder 15 for threaded connection to the connecting seat 10, improving the ease of installation of the limiting cylinder 15. This is achieved by setting up a mixing cylinder 2 and a connecting seat 10. The system includes a first slot 11, a rotating shaft 13, a stirring rod 14, a limiting cylinder 15, and a filter screen 16. The first slot 11 is W-shaped and located inside the mixing cylinder 2 to facilitate the deposition of microbial agent particles. The stirring rod 14 engages with the bottom of the first slot 11, allowing the stirring rod 14 to break up the microbial agent concentrated at the bottom of the first slot 11 when it rotates. The filter screen 16 filters the microbial agent in the solution. The connecting seat 10 supports the limiting cylinder 15 and the filter screen 16, increasing the distance between the filter screen 16 and the bottom of the first slot 11, reducing the adsorption of microbial agent on the filter screen 16, thereby improving the stability of the solution discharge, preventing clogging of the spray unit, and improving the microbial agent spraying and repair effect.

[0019] like Figure 2-5As shown, a brush plate 17 is installed at the bottom of the rotating shaft 13. The brush plate 17 is inserted into the middle of the limiting cylinder 15. By setting the brush plate 17 and inserting it into the limiting cylinder 15, when impurities attached to the filter screen 16 affect the easy discharge rate, the rotating shaft 13 can drive the brush plate 17 to rotate synchronously when it rotates. When the brush plate 17 moves on the surface of the filter screen 16, it can clean the filter screen 16, thereby improving the filtration stability of the filter screen 16.

[0020] like Figure 3-6 As shown, the limiting cylinder 15 has a second slot 19 for the rotating shaft 13 to be inserted into. A collar 20 is engaged with the inner wall of the second slot 19. The collar 20 is made of rubber and is cylindrical. Several concentric grooves are provided on the collar 20 to prevent elastic deformation. With the second slot 19 and collar 20, the second slot 19 is opened on the limiting cylinder 15 for the rotating shaft 13 to rotate. The collar 20 is engaged inside the second slot 19 and sleeved on the rotating shaft 13. Several concentric grooves are provided on the inner wall of the collar 20 to increase the contact area between the collar 20 and the rotating shaft 13 and improve the sealing at the connection between the rotating shaft 13 and the limiting cylinder 15.

[0021] like Figure 1-3 As shown, a spraying assembly is installed on the frame 1. The spraying assembly includes a water pump 5 mounted on the frame 1, a first pipe 7 with one end installed at the outlet of the water pump 5, a second pipe 8 with one end installed at the inlet of the water pump 5, a spray pipe 6 mounted on one end of the frame 1, and a tension sleeve 9 connected to one end of the spray pipe 6 by a threaded connection. The tension sleeve 9 has an anti-slip groove. By rotating the tension sleeve 9, the tightness of the connection of the spray pipe 6 can be adjusted. When loosened, the operator can rotate the spray pipe 6 to change the spraying angle and expand the spraying range. The other end of the first pipe 7 is connected to the spray pipe 6, and the other end of the second pipe 8 is connected to the bottom end of the connecting seat 10. Several nozzles are installed on the spray pipe 6. When the water pump 5 is started, a negative pressure is created to draw the bacterial agent solution inside the first slot 11 into the limiting cylinder 15, and then through the second pipe 8 and the first pipe 7 to the inside of the spray pipe 6. Finally, it is atomized by the nozzles on the spray pipe 6 and sprayed onto the soil.

[0022] This invention can also use a second motor to replace the tension sleeve 9. The second motor is mounted on the frame 1, and the output end of the second motor is connected to one end of the spray pipe 6 through a coupling. By starting the second motor, the spray pipe 6 can be driven to rotate on the frame 1, thereby expanding the spraying range of the spray pipe 6.

[0023] Working principle: When using this spraying device for preventing secondary soil salinization, the operator first installs a power supply, then moves the device to the designated location. Next, the remediation agent and aqueous solution are poured into the first slot 11 via the feed hopper 12. The agent settles at the W-shaped bottom of the first slot 11 under gravity, preventing accumulation on the filter screen 16. Starting the servo motor 4 drives the rotating shaft 13 to rotate. The rotating shaft 13 drives the stirring rod 14 to rotate inside the first slot 11, causing the stirring rod 14 to slowly agitate the agent deposited at the bottom of the first slot 11, accelerating the dissolution of the agent. Starting the water pump 5... Opening the valve on the connecting seat 10 allows the solution inside the first slot 11 to be drawn into the limiting cylinder 15. The solution passes through the double-layer filter screen 16 to filter out undissolved bacterial agents, improving the quality of the solution flowing into the spray pipe 6. This prevents the nozzles on the spray pipe 6 from becoming clogged, thereby improving the stability and uniformity of the bacterial agent spraying. When adsorbed and aggregated particles on the filter screen 16 cause the solution flow rate to decrease, the brush plate 17 can rotate synchronously with the rotating shaft 13. The brush plate 17 rotates on the inner wall of the filter screen 16 and contacts the filter screen 16, thereby sweeping off the attached bacterial agent particles, improving the filtration stability of the filter screen 16, and thus stabilizing the solution flow rate.

Claims

1. A spraying device for preventing secondary soil salinization, characterized in that: The equipment includes a frame (1), a mixing cylinder (2) installed on the frame (1), the mixing cylinder (2) is used to load the bacterial agent solution, a first slot (11) is opened inside the mixing cylinder (2), the bottom of the first slot (11) is W-shaped for bacterial agent deposition, an end cap (3) is installed on the mixing cylinder (2), a rotating shaft (13) is coaxially installed on the end cap (3), a stirring rod (14) is coaxially installed on the rotating shaft (13), a driving device is installed on the end cap (3), the driving device is used to drive the rotating shaft (13) and the stirring rod (14) to rotate, the stirring rod (14) crushes the deposited bacterial agent when it rotates at the bottom of the first slot (11), a connecting seat (10) is coaxially installed on the mixing cylinder (2), the connecting seat (10) is used to discharge the bacterial agent solution, a limiting cylinder (15) is installed on the connecting seat (10), a filter screen (16) is coaxially installed on the limiting cylinder (15), the filter screen (16) is used to filter the bacterial agent solution.

2. The spraying device for preventing secondary soil salinization according to claim 1, characterized in that, The drive device includes a servo motor (4) mounted on the end cover (3). The output end of the servo motor (4) is fixedly connected to the rotating shaft (13). When the servo motor (4) is started, it drives the rotating shaft (13) and the stirring rod (14) to rotate inside the first slot (11).

3. The spraying device for preventing secondary soil salinization according to claim 2, characterized in that, A brush plate (17) is installed at the bottom of the rotating shaft (13). The brush plate (17) is inserted into the middle of the limiting cylinder (15). When the rotating shaft (13) rotates, it drives the brush plate (17) to rotate on the surface of the filter screen (16).

4. The spraying device for preventing secondary soil salinization according to claim 3, characterized in that, The limiting cylinder (15) has a second slot (19) for the rotating shaft (13) to be inserted. The inner side wall of the second slot (19) is fitted with a collar (20), which is sleeved on the rotating shaft (13). The collar (20) has several concentric ring grooves.

5. A spraying device for preventing secondary soil salinization according to claim 4, characterized in that, The bottom end of the limiting cylinder (15) is provided with a threaded groove (18), which is used for the connection seat (10) to be threaded.

6. A spraying device for preventing secondary soil salinization according to claim 1, characterized in that, A spray assembly is installed on the frame (1). The spray assembly includes a water pump (5) installed on the frame (1), a first pipe (7) with one end installed at the outlet of the water pump (5), a second pipe (8) with one end installed at the inlet of the water pump (5), a spray pipe (6) installed at one end of the frame (1), and a tightness sleeve (9) installed at one end of the spray pipe (6).

7. A spraying device for preventing secondary soil salinization according to claim 6, characterized in that, The other end of the first pipe (7) is connected to the spray pipe (6), and the other end of the second pipe (8) is connected to the bottom of the connecting seat (10). Several nozzles are installed on the spray pipe (6). When the water pump (5) is started, a negative pressure is formed to pump the bacterial agent solution inside the first slot (11) into the limiting cylinder (15), and then transport it to the spray pipe (6) through the second pipe (8) and the first pipe (7). After being atomized by the nozzles on the spray pipe (6), it is sprayed onto the soil.

8. A spraying device for preventing secondary soil salinization according to claim 1, characterized in that, A feed hopper (12) is installed on the end cap (3). The feed hopper (12) is funnel-shaped and supplies the bacterial agent and aqueous solution to the first slot (11).

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