Chemical adding and purifying device for farmland water recession treatment

Abstract

The invention belongs to the technical field of farmland sewage purification, and particularly relates to a dosing purification device for farmland recession treatment, which comprises a console, a numerical control panel, a water tank and a water pump, the numerical control panel is arranged on the upper end of the console, the water tank is arranged on the side of the console, and the water pump is arranged on the side of the water tank. According to the device, a medicament crushing bin, an extrusion wheel, grinding teeth, a coaxial reverse bevel gear set, a mixing pressurizing bin, a preset pulse conveying pipe, a pressurizing pump and an electromagnetic pulse valve are arranged, and a numerical control panel controls a first motor, a second motor, a water pump, the pressurizing pump and the electromagnetic pulse valve. The preset pulse conveying pipe is laid in farmland recession to be treated. A flocculation precipitating agent is poured into the agent crushing bin, meanwhile, a first motor drives coaxial reverse bevel gear sets on the two sides through a driving bevel gear, the coaxial reverse bevel gear sets are connected through a middle shaft body, the upper-layer extrusion wheel and the lower-layer extrusion wheel are controlled to rotate in the opposite directions respectively, and grinding teeth are synchronously driven to crush caked agents.

Description

Technical Field

[0001] The invention relates to the technical field of farmland sewage purification, in particular to a drug-adding purification device for farmland drainage treatment. Background Art

[0002] Chemical purification for farmland drainage water treatment is an environmentally friendly technology targeting agricultural non-point source pollution. It primarily addresses the ecological damage to aquatic systems caused by residual fertilizers, pesticides, suspended solids, and other pollutants in farmland drainage water. By adding specific chemicals (such as flocculants and phosphorus removers) to the drainage water, pollutants are precipitated or transformed, reducing nitrogen and phosphorus content and turbidity in the water, thereby minimizing eutrophication in downstream rivers and lakes. This technology effectively improves the water quality of agricultural drainage water, balancing agricultural production with ecological and environmental protection, and is of great significance for achieving sustainable agricultural development and water environmental governance.

[0003] The existing technology has the following deficiencies: the prior art, "A device and method for purifying farmland drainage treatment," with publication number CN119612632A, "includes a stirring kettle, a medicine-feeding mechanism, and a stirring mechanism installed inside the stirring kettle, the medicine-feeding mechanism includes a medicine-receiving box that rotates around the stirring kettle, the medicine-receiving box is filled with powdered medicine, and the medicine-receiving box is driven by a drive motor installed on the stirring kettle, the discharge end of the medicine-receiving box is fixedly connected to a discharge cover, a sliding baffle that can move back and forth is installed under the discharge cover, and the upper surfaces of the sliding baffle and the discharge cover are both provided with discharge holes, and the positions of the upper and lower discharge holes are staggered with each other."

[0004] The above structure incorporates a drug loading assembly on the stirring vessel that automatically shakes and discharges the drug powder, dispersing it into the stirring vessel and facilitating mixing of the drug with water. However, this structure, which only disperses the powdered drug through mechanical shaking, fails to address the problem of large solid drug particle size. The dissolution rate may be less than 40%, and the reliance on simple stirring results in rapid drug sedimentation and a limited diffusion range. Summary of the Invention

[0005] In view of the deficiencies of the prior art, the present invention provides a dosing and purification device for farmland drainage treatment, which solves the current problems of lack of pretreatment of chemicals and limited diffusion range of simple stirring and sedimentation blocks.

[0006] To achieve the above-mentioned purpose, the present invention provides the following technical solution: a dosing purification device for farmland drainage treatment, comprising a control console, a numerical control panel, a water tank and a water pump, wherein the numerical control panel is arranged at the upper end of the control console, the water tank is arranged on the side of the control console, and the water pump is arranged at the side end of the water tank.

[0007] A medicine crushing bin is provided on the side of the console, a first motor is provided on the side end of the medicine crushing bin, a driving fixing frame is provided on the side end of the first motor, a mixing and pressurizing bin is provided below the medicine crushing bin, a preset pulse delivery pipe is provided on the side of the mixing and pressurizing bin, and a positioning frame is provided on the end of the preset pulse delivery pipe.

[0008] In some embodiments, the medicine crushing bin further includes an extrusion wheel, a grinding gear, a coaxial reverse bevel gear set, a driving bevel gear and a discharge pipe. The extrusion wheel is provided in two sets and is respectively sleeved on the periphery of a shaft sleeve controlled by two sets of different steering bevel gears.

[0009] In some embodiments, the grinding teeth are fixedly connected to the outside of the extrusion wheel, and the coaxial reverse bevel gear set consists of two sets of bevel gears distributed in opposite directions up and down, wherein the middle shaft of the bevel gear near the bottom extends upward and is inserted into the inner side of the extrusion wheel at the upper end, and the top of the bevel gear at the upper end is connected to a hollow sleeve, which is inserted into the inner side of the extrusion wheel at the bottom.

[0010] In some embodiments, the driving bevel gear is sleeved on the side end of the first motor, and the tooth grooves are respectively engaged with the middle part of the coaxial reverse bevel gear set, and the discharge pipe is fixedly installed at the bottom of the drug crushing bin and is connected to the inside of the drug crushing bin.

[0011] In some embodiments, the mixing and boosting tank further includes a transmission shaft, a stirring rod, a second motor, a boosting pump and a liquid level sensor. The transmission shaft is movably connected between the two sides of the mixing and boosting tank. A disc-shaped body is provided on the periphery of the stirring rod, which is sleeved on the periphery of the transmission shaft through the disc-shaped body.

[0012] In some embodiments, the second motor is fixedly installed on the outside of the mixing and boosting tank, the boosting pump is fixedly installed on the side of the mixing and boosting tank away from the second motor, and the liquid level sensor is inserted into the inner wall end surface of the mixing and boosting tank near the top.

[0013] In some embodiments, the preset pulse delivery pipe also includes an electromagnetic pulse valve, a filter chamber, a screen, an extension pipeline and a nozzle. The electromagnetic pulse valve is fixedly installed on the periphery of the preset pulse delivery pipe, and the filter chamber is sleeved at the connection between the preset pulse delivery pipe and the mixing and boosting chamber.

[0014] In some embodiments, the screen is made of stainless steel and has an overall circular structure. A number of equally spaced striped hollow filter slots are provided in the middle. The extension pipeline is plugged into the side end of a preset pulse delivery pipe, and the nozzle is fixedly installed on the upper end of the extension pipeline. The extension pipeline and the preset pulse delivery pipe are cross-distributed at right angles and are installed according to specific laying needs.

[0015] In some embodiments, the booster pump provides a pressure of 0.6-1.2 MPa, and the electromagnetic pulse valve releases the drug mixture at a frequency of 0.1-0.3 Hz.

[0016] Compared with the prior art, the present invention provides a dosing and purification device for farmland drainage treatment:

[0017] A chemical-dosing purification device for treating farmland drainage water comprises a chemical crushing chamber, an extrusion wheel, a grinding gear, a coaxial reverse bevel gear set, a mixing and boosting chamber, a preset pulse delivery pipe, a booster pump, and an electromagnetic pulse valve. During operation, the operator controls the first and second motors, the water pump, the booster pump, and the electromagnetic pulse valve via a control console and a numerical control panel. The preset pulse delivery pipe is laid in the farmland drainage water to be treated. Flocculants are poured into the chemical crushing chamber. Simultaneously, the first motor drives the bevel gears, which drive the coaxial reverse bevel gear sets on both sides. These coaxial reverse bevel gear sets are connected by a central shaft, controlling the upper and lower extrusion wheels to rotate in opposite directions and simultaneously driving the grinding gears to break up any clumped chemical. The crushed chemical falls through a discharge pipe into the mixing and boosting chamber. The second motor drives the agitator via a drive shaft. Simultaneously, a water pump pumps clean water from the water tank into the mixing and boosting chamber. The pump shuts down when a liquid level sensor detects the water level has reached its upper limit, sending a signal to the control console. The stirring rod promotes thorough mixing of the purified water and the flocculant, forming a liquid agent. The booster pump pressurizes the liquid agent and forces it through the filter chamber. Under the control of the electromagnetic pulse valve, the liquid agent is released in a pulsed form. The liquid agent is transported through a preset pulse delivery pipe, and the discharge range is expanded through the extended pipeline and nozzle, and finally released from the nozzle.

[0018] Through the above settings and processes, the device has the following beneficial effects:

[0019] 1. Traditional devices directly inject solid chemicals, resulting in a dissolution rate of less than 40%. However, this design uses a two-stage crushing structure (extrusion wheel + grinding gear combination) driven by a coaxial reverse bevel gear set to reduce the flocculant particle size to ≤200μm. Combined with the variable frequency stirring of the mixing and pressurizing chamber, it achieves a chemical dissolution rate of ≥92%. The intermittent injection mode of the pulse delivery pipe further extends the effective reaction time of the chemical in the water body, improving the pollutant removal rate by more than 35% compared to traditional continuous dosing methods.

[0020] 2. Through the coordination of the agent crushing chamber, the mixing and boosting chamber, and the water pump, the synergistic effect of agent pre-mixing and pulse injection significantly improves the efficiency of farmland drainage treatment. Compared with the traditional method of direct addition of powder agents, the pre-mixing system shortens the agent dissolution time from 30 minutes to within 3 minutes, and the mixing uniformity is improved by more than 85%. The pressure of the pulse boosting injection is between 0.6-1.2MPa, which makes the agent diffusion radius reach 8-12 meters. Combined with the intermittent control of the solenoid valve and the frequency of 0.1-0.3Hz, the effective reaction time is extended by 3 times, and the pollutant removal rate is increased by 35% year-on-year. It solves the problems of uneven dispersion of powder agents and rapid sedimentation. The liquid-solid mixing system increases the effective utilization rate of the agent from 58% to 91%, and the phosphorus adsorption rate is increased by 43%. At the same time, the concentration is dynamically adjusted through the numerical control system. BRIEF DESCRIPTION OF THE DRAWINGS

[0021] Figure 1 It is a schematic diagram of the overall structure of the present invention;

[0022] Figure 2 This is a schematic diagram of the side end structure of the present invention;

[0023] Figure 3 This is a schematic diagram of the installation position of the feed pipe and the bottom structure of the agent crushing bin of the present invention;

[0024] Figure 4 This is a schematic diagram of the connection position structure of the coaxial reverse bevel gear set of the present invention;

[0025] Figure 5 This is a schematic diagram of the installation position of the electromagnetic pulse valve and the filter chamber of the present invention;

[0026] Figure 6 This is a schematic diagram of the internal structure of the hybrid boosting bin of the present invention;

[0027] Figure 7 This is a schematic diagram of the installation position of the liquid level sensor and the lateral extension position of the transmission shaft of the present invention.

[0028] In the figure: 1. Control console; 2. CNC panel; 3. Water tank; 4. Drug crushing chamber; 401. Extrusion wheel; 402. Grinding gear; 403. Coaxial reverse bevel gear set; 404. Driving bevel gear; 405. Feeding pipe; 5. First motor; 6. Driving fixed frame; 7. Mixing and boosting chamber; 701. Transmission shaft; 702. Stirring rod; 703. Second motor; 704. Booster pump; 705. Liquid level sensor; 8. Preset pulse delivery pipe; 801. Electromagnetic pulse valve; 802. Filter chamber; 803. Screen; 804. Extension pipeline; 805. Nozzle; 9. Positioning frame; 10. Water pump. DETAILED DESCRIPTION

[0029] The following will clearly and completely describe the technical solutions in the embodiments of the present invention in conjunction with the accompanying drawings. Obviously, the described embodiments are only part of the embodiments of the present invention, not all of the embodiments. Based on the embodiments of the present invention, all other embodiments obtained by ordinary technicians in this field without making creative efforts are within the scope of protection of the present invention.

[0030] In the description of the present invention, it should be noted that the terms "upper," "lower," "inner," "outer," "front end," "rear end," "both ends," "one end," "the other end," and the like, indicating orientations or positional relationships, are based on the orientations or positional relationships shown in the accompanying drawings and are intended solely to facilitate and simplify the description of the present invention. They are not intended to indicate or imply that the devices or components referred to must have, be constructed, or operate in a specific orientation, and therefore should not be construed as limiting the present invention. Furthermore, the terms "first" and "second" are used for descriptive purposes only and should not be construed as indicating or implying relative importance.

[0031] In the description of the present invention, it should be noted that, unless otherwise expressly specified or limited, the terms "installed," "provided with," "connected," etc., should be understood in a broad sense. For example, "connected" may refer to a fixed connection, a detachable connection, or an integral connection; it may refer to a mechanical connection or an electrical connection; it may refer to a direct connection or an indirect connection through an intermediate medium; it may refer to internal communication between two components. Those skilled in the art will be able to understand the specific meanings of the above terms in the present invention based on the specific circumstances.

[0032] In this embodiment: a dosing purification device for farmland drainage treatment includes a control console 1, a numerical control panel 2, a water tank 3 and a water pump 10, the numerical control panel 2 is arranged at the upper end of the control console 1, the water tank 3 is arranged on the side of the control console 1, and the water pump 10 is arranged on the side end of the water tank 3.

[0033] A medicine crushing bin 4 is provided on the side of the console 1, a first motor 5 is provided on the side end of the medicine crushing bin 4, a driving fixing frame 6 is provided on the side end of the first motor 5, a mixing and pressurizing bin 7 is provided below the medicine crushing bin 4, a preset pulse delivery pipe 8 is provided on the side of the mixing and pressurizing bin 7, and a positioning frame 9 is provided at the end of the preset pulse delivery pipe 8.

[0034] In this embodiment, the medicine crushing chamber 4 also includes an extrusion wheel 401, a grinding gear 402, a coaxial reverse bevel gear set 403, a driving bevel gear 404 and a discharge pipe 405. The extrusion wheel 401 is provided with two groups, and is respectively sleeved on the outer periphery of the shaft sleeve controlled by two groups of different steering bevel gears; the grinding gear 402 is fixedly connected to the outer side of the extrusion wheel 401, and the coaxial reverse bevel gear set 403 consists of two groups of bevel gears distributed in opposite directions up and down, among which the middle shaft of the bevel gear near the bottom extends upward and is inserted into the inner side of the extrusion wheel 401 at the upper end, and the top of the bevel gear at the upper end is connected with a hollow sleeve, which is inserted into the inner side of the extrusion wheel 401 at the bottom.

[0035] Specifically, such as Figure 1 Figure 3 as well as Figure 4 As shown, the device drives two sets of extrusion wheels 401 through a coaxial reverse bevel gear set 403 to perform bidirectional crushing on the solid flocculant, and cooperates with the grinding gear 402 to control the particle size of the agent to below 200 μm, and the dissolution rate is increased to 92%.

[0036] In this embodiment, the driving bevel gear 404 is sleeved on the side end of the first motor 5, and the tooth grooves are respectively engaged with the middle part of the coaxial reverse bevel gear set 403, and the discharge pipe 405 is fixedly installed at the bottom of the medicine crushing bin 4 and is connected to the interior of the medicine crushing bin 4; the mixing and boosting bin 7 also includes a transmission shaft 701, a stirring rod 702, a second motor 703, a boosting pump 704 and a liquid level sensor 705. The transmission shaft 701 is movably connected between the two sides of the mixing and boosting bin 7, and a disc-shaped body is provided on the periphery of the stirring rod 702, which is sleeved on the periphery of the transmission shaft 701 through the disc-shaped body.

[0037] Specifically, such as Figure 3 and Figure 4 As shown, the extrusion wheels 401 controlled by two sets of bevel gears rotate in opposite directions, and the gap between them squeezes and crushes the medicine.

[0038] In this embodiment, the second motor 703 is fixedly installed on the outside of the mixing and boosting tank 7, the boosting pump 704 is fixedly installed on the side of the mixing and boosting tank 7 away from the second motor 703, and the liquid level sensor 705 is plugged into the inner wall end face of the mixing and boosting tank 7 near the top; the preset pulse delivery pipe 8 also includes an electromagnetic pulse valve 801, a filter tank 802, a screen 803, an extension pipeline 804 and a nozzle 805, the electromagnetic pulse valve 801 is fixedly installed on the periphery of the preset pulse delivery pipe 8, and the filter tank 802 is sleeved on the connection between the preset pulse delivery pipe 8 and the mixing and boosting tank 7.

[0039] Specifically, such as Figure 5 Figure 6 as well as Figure 7As shown, when the nitrogen concentration in the discharged water exceeds the threshold, the system triggers the booster pump 704 to a pressure of 1.2 MPa, and cooperates with the second motor 703 to accelerate stirring, achieving a pollutant removal rate increase of 35% year-on-year.

[0040] In this embodiment, the screen 803 is made of stainless steel and has an overall circular structure. Several groups of equally spaced striped hollow filter grooves are opened in the middle. The extension pipeline 804 is plugged into the side end of the preset pulse delivery pipe 8, and the nozzle 805 is fixedly installed at the upper end of the extension pipeline 804. The extension pipeline 804 and the preset pulse delivery pipe 8 are cross-distributed at right angles and are installed according to specific laying requirements; the booster pump 704 provides a pressure of 0.6-1.2MPa, and the electromagnetic pulse valve 801 releases the drug mixture at a frequency of 0.1-0.3Hz.

[0041] Specifically, such as Figure 2 and Figure 5 As shown, extended pipeline 804 is laid 8 meters along the ditch, intermittently spraying the reagent mixture at a frequency of 0.2 Hz through electromagnetic pulse valve 801. Screen 803 intercepts undissolved particles, and nozzles 805 are arranged at a 45° angle to form a fan-shaped atomization area covering 12 meters, increasing phosphorus adsorption efficiency by 43%.

[0042] The working principle and usage process of the present invention: When the device is in use, the operator controls the first motor 5, the second motor 703, the water pump 10, the boost pump 704 and the electromagnetic pulse valve 801 through the control console 1 and the numerical control panel 2. The preset pulse delivery pipe 8 is laid in the farmland drainage water to be treated. The flocculant is poured into the inside of the agent crushing bin 4. At the same time, the first motor 5 drives the coaxial reverse bevel gear set 403 on both sides by driving the bevel gear 404. The coaxial reverse bevel gear set 403 is connected by the middle shaft, respectively controlling the upper and lower layers of the extrusion wheel 401 to rotate in opposite directions, and synchronously drives the grinding gear 402 to crush the agglomerated agent. The crushed flocculant falls into the mixing and boosting bin 7 through the discharge pipe 405. Second motor 703 rotates stirring rod 702 via drive shaft 701. Simultaneously, water pump 10 pumps clean water from water tank 3 into mixing and boosting chamber 7 until liquid level sensor 705 senses the water level has reached its upper limit, sending a signal to console 1. Water pump 10 then shuts down. Stirring rod 702 promotes thorough mixing of the clean water and flocculant, forming a liquid agent. Booster pump 704 pressurizes the liquid agent and forces it through the interior of filter chamber 802. Controlled by solenoid pulse valve 801, the pressurized liquid agent is released in pulses. The liquid agent is then transported through pre-set pulse delivery pipe 8, expanded through extension line 804 and nozzle 805, and ultimately released through nozzle 805.

[0043] Finally, it should be noted that the above descriptions are merely preferred embodiments of the present invention and are not intended to limit the present invention. Although the present invention has been described in detail with reference to the aforementioned embodiments, those skilled in the art will be able to modify the technical solutions described in the aforementioned embodiments or substitute equivalents for some of the technical features. Any modifications, equivalent substitutions, and improvements made within the spirit and principles of the present invention shall be included within the scope of protection of the present invention.

Claims

1. A dosing and purification device for farmland drainage treatment, comprising a control console (1), a numerical control panel (2), a water tank (3) and a water pump (10), wherein the numerical control panel (2) is arranged at the upper end of the control console (1), the water tank (3) is arranged at the side of the control console (1), and the water pump (10) is arranged at the side end of the water tank (3), characterized in that: A medicine crushing chamber (4) is provided on the side of the control console (1), a first motor (5) is provided on the side end of the medicine crushing chamber (4), a driving fixed frame (6) is provided on the side end of the first motor (5), a mixing and pressurizing chamber (7) is provided below the medicine crushing chamber (4), a preset pulse delivery tube (8) is provided on the side of the mixing and pressurizing chamber (7), and a positioning frame (9) is provided at the end of the preset pulse delivery tube (8).

2. The dosing and purification device for farmland drainage treatment according to claim 1, characterized in that: The medicine crushing bin (4) further comprises an extrusion wheel (401), a grinding gear (402), a coaxial reverse bevel gear set (403), a driving bevel gear (404) and a discharge pipe (405). The extrusion wheel (401) is provided in two sets and is respectively sleeved on the periphery of a shaft sleeve controlled by two sets of different steering bevel gears.

3. The dosing and purification device for farmland drainage treatment according to claim 2, characterized in that: The grinding teeth (402) are fixedly connected to the outside of the extrusion wheel (401), and the coaxial reverse bevel gear set (403) is composed of two sets of bevel gears distributed in reverse directions up and down, wherein the middle shaft of the bevel gear near the bottom extends upward and is inserted into the inside of the extrusion wheel (401) at the upper end, and the top of the bevel gear at the upper end is connected to a hollow sleeve, which is inserted into the inside of the extrusion wheel (401) at the bottom end.

4. The dosing and purification device for farmland drainage treatment according to claim 2, characterized in that: The driving bevel gear (404) is sleeved on the side end of the first motor (5), and the tooth grooves are respectively engaged with the middle part of the coaxial reverse bevel gear set (403). The discharge pipe (405) is fixedly installed at the bottom of the medicine crushing bin (4) and is communicated with the inside of the medicine crushing bin (4).

5. The dosing and purification device for farmland drainage treatment according to claim 1, characterized in that: The mixing and pressurizing chamber (7) further comprises a transmission shaft (701), a stirring rod (702), a second motor (703), a boosting pump (704) and a liquid level sensor (705); the transmission shaft (701) is movably connected between two sides of the interior of the mixing and pressurizing chamber (7); a disc-shaped body is provided on the periphery of the stirring rod (702), and the disc-shaped body is sleeved on the periphery of the transmission shaft (701).

6. The dosing and purification device for farmland drainage treatment according to claim 5, characterized in that: The second motor (703) is fixedly installed on the outside of the mixing and boosting chamber (7), the boosting pump (704) is fixedly installed on the side of the mixing and boosting chamber (7) away from the second motor (703), and the liquid level sensor (705) is plugged into the inner wall end face of the mixing and boosting chamber (7) near the top.

7. The dosing and purification device for farmland drainage treatment according to claim 1, characterized in that: The preset pulse delivery pipe (8) further comprises an electromagnetic pulse valve (801), a filter chamber (802), a screen (803), an extension pipeline (804) and a nozzle (805); the electromagnetic pulse valve (801) is fixedly mounted on the periphery of the preset pulse delivery pipe (8); and the filter chamber (802) is sleeved at the connection between the preset pulse delivery pipe (8) and the mixing and pressurizing chamber (7).

8. The dosing and purification device for farmland drainage treatment according to claim 7, characterized in that: The screen (803) is made of stainless steel and has a circular structure as a whole. A plurality of striped hollow filter slots are provided in the middle thereof at equal intervals. The extension pipeline (804) is plugged into the side end of the preset pulse delivery pipe (8). The nozzle (805) is fixedly installed on the upper end of the extension pipeline (804). The extension pipeline (804) and the preset pulse delivery pipe (8) are intersected at right angles and are installed according to specific laying requirements.

9. The dosing and purification device for farmland drainage treatment according to claim 5, characterized in that: The booster pump (704) provides a pressure of 0.6-1.2 MPa, and the electromagnetic pulse valve (801) releases the medicine mixture at a frequency of 0.1-0.3 Hz.

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