A mixed reaction system for farmland soil pollution remediation based on biodegradation

Abstract

This utility model discloses a mixing reaction system for farmland soil pollution remediation based on biodegradation, relating to the field of mixing equipment technology. It includes a reaction vessel with a reaction chamber. A stirring assembly for mixing reagents inside the reaction chamber is installed on the reaction vessel. The stirring assembly includes a stirring shaft rotatably mounted on the top wall of the reaction vessel, a stirring rod mounted on the outer wall of the stirring shaft, a driving component for rotating the stirring shaft, a sliding sleeve fitted on the outer wall of the stirring shaft, and a breaking rod mounted on the outer wall of the sliding sleeve. The breaking rod has breaking teeth on one side and a float plate mounted on the other side. This utility model solves the problem of uneven powder dispersion caused by foam in traditional mixing processes, eliminates the need for chemical defoamers, avoids interference with the biodegradation effect, and significantly improves the mixing uniformity and preparation efficiency of the remediation solution.

Description

Technical Field

[0001] This utility model relates to the field of mixing equipment technology, specifically a mixing reaction system for the remediation of farmland soil pollution based on biodegradation. Background Technology

[0002] With the acceleration of industrialization and the irrational use of chemical fertilizers and pesticides in agricultural production, farmland soil pollution has become increasingly prominent, seriously threatening the quality and safety of agricultural products and the health of the ecological environment. Heavy metals and organic pollutants in the soil not only enter the food chain through crop absorption but may also seep into groundwater with rainwater, posing a potential risk to human survival and development. Therefore, the effective remediation of polluted farmland soil has become an important issue in the field of environmental protection.

[0003] Among numerous soil remediation technologies, biodegradation-based remediation technologies have received widespread attention and in-depth research due to their advantages such as environmental friendliness, low cost, and low risk of secondary pollution. This technology typically involves applying a remediation solution containing specific microorganisms, enzymes, or nutrients to contaminated soil. The microorganisms' metabolic processes decompose organic pollutants into harmless substances, or they reduce the bioavailability of heavy metals through biotransformation, thereby achieving soil purification.

[0004] The preparation and mixing of the remediation solution are crucial steps in the implementation of biodegradation remediation technology, and its uniformity directly affects the remediation effect and efficiency. During the preparation and mixing of the remediation solution, a large number of bubbles are often generated due to factors such as chemical reactions between materials, shearing effects from mechanical stirring, and microbial metabolic activities. These bubbles easily accumulate on the surface of the remediation solution to form a foam layer, and the powders contained in the remediation solution (such as microbial preparations, nutrients, conditioners, etc.) are easily adsorbed and encapsulated by the foam due to their own surface activity or density characteristics.

[0005] The phenomenon of the powder being adsorbed by the foam leads to a series of problems: on the one hand, the adsorbed powder cannot be dispersed into the main body of the remediation solution in a timely and rapid manner, resulting in uneven distribution of the effective components in the remediation solution, which affects the subsequent contact and effect with the soil; on the other hand, the presence of the foam layer will hinder the full contact between the mixing device and the remediation solution, reduce the mixing efficiency, and increase the mixing time and energy consumption.

[0006] Currently, there are limited solutions to the foaming problem during the mixing of repair solutions. Most solutions involve manual defoaming or the addition of chemical defoamers. However, manual defoaming is inefficient, and chemical defoamers may inhibit the activity of microorganisms in the repair solution, thus affecting the biodegradation effect.

[0007] In view of the above, this application is hereby submitted. Utility Model Content

[0008] The purpose of this invention is to provide a biodegradable mixed reaction system for the remediation of farmland soil pollution, in order to solve the problems mentioned in the background art.

[0009] To address the aforementioned technical problems, this utility model provides a biodegradable mixed reaction system for farmland soil pollution remediation, comprising a reaction vessel with a reaction chamber. A stirring assembly for mixing reagents within the reaction chamber is installed on the reaction vessel. The stirring assembly includes a stirring shaft rotatably mounted on the top wall of the reaction vessel, a stirring rod mounted on the outer wall of the stirring shaft, a driving component for rotating the stirring shaft mounted on the reaction vessel, a sliding sleeve fitted on the outer wall of the stirring shaft, a crushing rod mounted on the outer wall of the sliding sleeve, crushing teeth on one side of the crushing rod, and a float plate mounted on the other side of the crushing rod.

[0010] Furthermore, the top of the reactor is equipped with a feed pipe that communicates with the reaction chamber, and the bottom end of the feed pipe is connected to a discharge pipe that communicates with the reaction chamber. A valve for controlling the opening and closing of the discharge pipe is installed on the discharge pipe.

[0011] Furthermore, the driving component includes a stirring motor mounted on the top surface of the reactor, the driving end of the stirring motor is connected to a driving gear, and a driven gear meshing with the driving gear is mounted on the outer wall of the stirring shaft.

[0012] Furthermore, the stirring shaft has a hollow tube structure, and a sliding opening communicating with its inner cavity is provided on its side wall, and the sliding sleeve is slidably connected in the sliding opening.

[0013] Furthermore, the stirring shaft is provided with a sliding plug rod that slides along its axial direction, and the bottom end of the sliding plug rod is connected to the inner wall of the sliding sleeve.

[0014] Furthermore, a protective cover is installed on the top of the reactor, and the stirring shaft, stirring motor and sliding rod are all located inside the protective cover.

[0015] Furthermore, a return spring is sleeved on the outside of the slider rod, the bottom end of the return spring is connected to the top of the slider rod, and the top end of the return spring is connected to the top wall of the slider rod.

[0016] Furthermore, multiple crushing rods are provided, and the multiple crushing rods are arranged in a circumferential array on the outer wall of the sliding mouth.

[0017] Compared with the prior art, the beneficial effects of this utility model are:

[0018] 1. In this invention, the stirring rod, driven by the stirring shaft, performs basic mixing of reagents in the reaction chamber. At the same time, the float plate dynamically adjusts the height of the crushing rod according to the buoyancy of the foam. The crushing teeth rotate with the stirring shaft to crush the foam, so that the adsorbed drug powder is quickly dispersed. This solves the problem of uneven drug powder dispersion caused by foam in traditional mixing, and eliminates the need for chemical defoamers, avoiding interference with the biodegradation effect and greatly improving the mixing uniformity and preparation efficiency of the repair solution.

[0019] 2. In this utility model, the sliding sleeve slides along the sliding opening and is guided by the sliding plug rod. Combined with the automatic reset function of the reset spring, the crushing component can adaptively adjust its position according to the change of foam volume. The crushing rods in multiple circumferential arrays expand the defoaming range. The overall structure works together to achieve the stability and continuity of equipment operation, reduce energy consumption and manual intervention, and extend the service life of the equipment. Attached Figure Description

[0020] Figure 1 This is a side view of the structure of this utility model;

[0021] Figure 2 This is a front view structural diagram of the present utility model;

[0022] Figure 3 This is a cross-sectional structural diagram of the present invention;

[0023] Figure 4 This is a schematic diagram of the crushing component in this utility model.

[0024] In the diagram: 1. Reactor; 2. Support; 3. Protective cover; 4. Feed pipe; 5. Discharge pipe; 6. Valve; 7. Reaction chamber; 8. Stirring shaft; 9. Stirring rod; 10. Stirring motor; 11. Drive gear; 12. Driven gear; 13. Sliding port; 14. Sliding sleeve; 15. Crushing rod; 16. Sliding plug rod; 17. Return spring; 18. Float plate; 19. Crushing teeth. Detailed Implementation

[0025] The technical solutions of the present utility model will be clearly and completely described below with reference to the accompanying drawings of the embodiments. Obviously, the described embodiments are only some embodiments of the present utility model, and not all embodiments. Based on the embodiments of the present utility model, all other embodiments obtained by those of ordinary skill in the art without creative effort are within the protection scope of the present utility model.

[0026] Please see Figures 1-4This utility model provides a technical solution: a mixed reaction system for farmland soil pollution remediation based on biodegradation, including a reaction vessel 1, the reaction vessel 1 having a reaction chamber 7, a stirring assembly for mixing reagents inside the reaction chamber 7 installed on the reaction vessel 1, the stirring assembly including a stirring shaft 8 rotatably installed on the inner top wall of the reaction vessel 1, a stirring rod 9 installed on the outer wall of the stirring shaft 8, a driving component for driving the stirring shaft 8 to rotate installed on the reaction vessel 1, a sliding sleeve 14 sleeved on the outer wall of the stirring shaft 8, a crushing rod 15 installed on the outer wall of the sliding sleeve 14, a crushing tooth 19 provided on one side of the crushing rod 15, and a float plate 18 installed on the other side of the crushing rod 15.

[0027] Specifically, the driving component drives the stirring shaft 8 to rotate, and the stirring shaft 8 drives the stirring rod 9 on the outer wall to rotate, thereby mixing the reagents inside the reaction chamber 7. When the reaction produces foam, the float plate 18 is buoyed by the foam and drives the sliding sleeve 14 to slide along the stirring shaft 8. At the same time, the rotation of the stirring shaft 8 causes the breaking rod 15 on the sliding sleeve 14 to rotate synchronously, and the breaking teeth 19 break the foam, allowing the adsorbed drug powder to disperse.

[0028] It should be noted that a support 2 is also installed on the outer wall of the reactor 1 to support the entire reactor 1 and improve the overall stability of the reactor 1. As a well-known device in the art for material mixing and reaction, the basic structure and conventional functions of the reactor 1, such as providing a closed reaction space and coordinating the feeding and discharging of materials, are within the scope of existing technology and will not be elaborated on here. This solution mainly focuses on improving and explaining the specific structure of the reactor 1 that is related to foam treatment and efficient mixing.

[0029] As a technical optimization of this utility model, the top of the reactor 1 is equipped with a feed pipe 4 that communicates with the reaction chamber 7, and the bottom end of the feed pipe 4 is connected to a discharge pipe 5 that communicates with the reaction chamber 7. A valve 6 that controls the opening and closing of the discharge pipe 5 is installed on the discharge pipe 5.

[0030] Specifically, the feed pipe 4 is used to deliver various reagents for preparing the repair solution to the reaction chamber 7; after mixing, the valve 6 on the discharge pipe 5 is opened, and the repair solution is discharged through the discharge pipe 5. The feed pipe 4 and the discharge pipe 5 realize the input and output of reagents respectively. The valve 6 can control the discharge process, which is convenient for operation, avoids leakage of repair solution in the non-discharge stage, and ensures the controllability of system operation.

[0031] As a technical optimization of this utility model, the driving component includes a stirring motor 10 installed on the top surface of the reactor 1, a driving gear 11 connected to the driving end of the stirring motor 10, and a driven gear 12 that meshes with the driving gear 11 installed on the outer wall of the stirring shaft 8.

[0032] Specifically, the stirring motor 10 is started, and its driving end drives the drive gear 11 to rotate. The drive gear 11 meshes with the driven gear 12, which in turn drives the stirring shaft 8 to rotate, providing power for stirring.

[0033] As a technical optimization of this utility model, the stirring shaft 8 has a hollow tube structure, and a sliding port 13 communicating with its inner cavity is opened on its side wall. The sliding sleeve 14 is slidably connected in the sliding port 13.

[0034] Specifically, the stirring shaft 8 is a hollow tube structure, and the sliding port 13 provides a sliding track for the sliding sleeve 14, so that the sliding sleeve 14 can slide along the axial direction of the stirring shaft 8 to adapt to changes in foam height.

[0035] As a technical optimization of this utility model, the stirring shaft 8 is provided with a sliding plug rod 16 that slides along its axial direction, and the bottom end of the sliding plug rod 16 is connected to the inner wall of the sliding sleeve 14.

[0036] Specifically, the bottom end of the sliding rod 16 is connected to the inner wall of the sliding sleeve 14. When the sliding sleeve 14 slides along the sliding opening 13, the sliding rod 16 slides synchronously inside the stirring shaft 8, which guides the sliding of the sliding sleeve 14.

[0037] As a technical optimization of this utility model, a protective cover 3 is installed on the top of the reactor 1, and the stirring shaft 8, stirring motor 10 and sliding rod 16 are all located inside the protective cover 3.

[0038] Specifically, the protective cover 3 encloses the stirring shaft 8, the stirring motor 10, and the sliding rod 16, forming a protective barrier.

[0039] As a technical optimization of this utility model, a return spring 17 is sleeved on the outside of the slider rod 16. The bottom end of the return spring 17 is connected to the top of the slider rod 16, and the top end of the return spring 17 is connected to the top wall of the slider rod 16.

[0040] Specifically, when the foam decreases, the buoyancy of the float plate 18 decreases, and the elastic force of the return spring 17 pulls the slide rod 16 to reset, thereby driving the slide sleeve 14 and the breaker rod 15 back to their initial positions.

[0041] As a technical optimization of this utility model, multiple crushing rods 15 are provided, and the multiple crushing rods 15 are arranged in a circumferential array on the outer wall of the sliding mouth 13.

[0042] Specifically, when multiple crushing rods 15 arranged in a circular array rotate with the stirring shaft 8, they can crush the foam in the reaction chamber 7 from multiple directions, increasing the contact range with the foam, improving the foam crushing efficiency, and enabling the powder to be dispersed into the repair solution more quickly and evenly, further enhancing the mixing effect.

[0043] Working principle:

[0044] First, the necessary reagents, such as microbial preparations, nutrients, and powders, are added to the reaction chamber 7 through the feed pipe 4 at the top of the reactor 1 to prepare the repair solution. After the drive unit is started, the stirring motor 10 operates and drives the drive gear 11 to rotate. The drive gear 11 meshes with the driven gear 12 on the outer wall of the stirring shaft 8, thereby driving the stirring shaft 8 to rotate on the top wall inside the reactor 1. When the stirring shaft 8 rotates, the stirring rod 9 on its outer wall rotates synchronously, stirring and mixing the reagents in the reaction chamber 7, and initially achieving the dispersion of the materials.

[0045] During the stirring process, if foam is generated and accumulates on the surface of the reaction chamber 7, the float plate 18 on the other side of the breaking rod 15 will float upward due to the buoyancy of the foam, causing the sliding sleeve 14 to slide upward along the sliding opening 13 on the side wall of the stirring shaft 8. The sliding sleeve 14 connects to the bottom end of the sliding plug rod 16 inside the stirring shaft 8. At this time, the sliding plug rod 16 rises synchronously with the sliding sleeve 14, and its external return spring 17 is stretched and stores force. At the same time, as the stirring shaft 8 continues to rotate, the sliding sleeve 14 drives the breaking rod 15 to rotate synchronously with the stirring shaft 8. The breaking teeth 19 on one side of the breaking rod 15 will mechanically break the foam layer, causing the powder adsorbed by the foam to break free from the foam binding and redistribute into the reagent in the reaction chamber 7, ensuring the uniformity of mixing.

[0046] When the foam decreases, the buoyancy of the float plate 18 decreases, and the elastic force of the return spring 17 will pull the slide rod 16 to return to its original position. This will then drive the slide sleeve 14 and the crushing rod 15 to move down along the slide opening 13, so that the crushing tooth 19 can adapt to the change in liquid level and continuously and efficiently defoam.

[0047] After mixing is complete, valve 6 on discharge pipe 5 is opened, and the uniformly mixed remediation solution in reaction chamber 7 is discharged through discharge pipe 5 for farmland soil remediation. In addition, the protective cover 3 on top of reactor 1 can protect internal components such as stirring shaft 8, stirring motor 10, and sliding rod 16 from external interference.

[0048] Throughout the process, the stirring rod 9 of the stirring assembly ensures the overall mixing of the reagents, and the breaking teeth 19 of the breaking rod 15, together with the dynamic adjustment of the float 18, achieves precise defoaming without the need to add chemical defoamers. This not only solves the problem of uneven dispersion of the drug powder, but also improves the stirring efficiency, making it suitable for the preparation of biodegradable remediation solutions.

[0049] It will be apparent to those skilled in the art that this invention is not limited to the details of the exemplary embodiments described above, and that it can be implemented in other specific forms without departing from the spirit or essential characteristics of this invention. Therefore, the embodiments should be considered illustrative and non-limiting in all respects, and the scope of this invention is defined by the appended claims rather than the foregoing description. Thus, it is intended that all variations falling within the meaning and scope of equivalents of the claims be included within this invention. No reference numerals in the claims should be construed as limiting the scope of the claims.

[0050] Furthermore, it should be understood that although this specification describes embodiments, not every embodiment contains only one independent technical solution. This narrative style is merely for clarity. Those skilled in the art should consider the specification as a whole, and the technical solutions in each embodiment can also be appropriately combined to form other embodiments that can be understood by those skilled in the art.

Claims

1. A mixed reaction system for remediation of farmland soil pollution based on biodegradation, comprising a reaction vessel (1), wherein the reaction vessel (1) has a reaction chamber (7), characterized in that: A stirring assembly for mixing reagents inside the reaction chamber (7) is installed on the reaction vessel (1). The stirring assembly includes a stirring shaft (8) rotatably mounted on the top wall of the reaction vessel (1). A stirring rod (9) is installed on the outer wall of the stirring shaft (8). A driving component for driving the stirring shaft (8) to rotate is installed on the reaction vessel (1). A sliding sleeve (14) is sleeved on the outer wall of the stirring shaft (8). A crushing rod (15) is installed on the outer wall of the sliding sleeve (14). A crushing tooth (19) is provided on one side of the crushing rod (15). A float plate (18) is installed on the other side of the crushing rod (15).

2. The hybrid reaction system for farmland soil pollution remediation based on biodegradation as described in claim 1, characterized in that: The reactor (1) is equipped with a feed pipe (4) that communicates with the reaction chamber (7) at the top and a discharge pipe (5) that communicates with the reaction chamber (7) at the bottom. A valve (6) that controls the opening and closing of the discharge pipe (5) is installed on the discharge pipe (5).

3. The hybrid reaction system for farmland soil pollution remediation based on biodegradation as described in claim 1, characterized in that: The driving component includes a stirring motor (10) mounted on the top surface of the reactor (1), the driving end of the stirring motor (10) is connected to a driving gear (11), and a driven gear (12) that meshes with the driving gear (11) is mounted on the outer wall of the stirring shaft (8).

4. The hybrid reaction system for farmland soil pollution remediation based on biodegradation as described in claim 1, characterized in that: The stirring shaft (8) has a hollow tube structure, and a sliding opening (13) communicating with its inner cavity is provided on its side wall. The sliding sleeve (14) is slidably connected in the sliding opening (13).

5. The hybrid reaction system for farmland soil pollution remediation based on biodegradation as described in claim 4, characterized in that: The stirring shaft (8) is provided with a sliding plug rod (16) that slides along its axial direction. The bottom end of the sliding plug rod (16) is connected to the inner wall of the sliding sleeve (14).

6. The hybrid reaction system for farmland soil pollution remediation based on biodegradation as described in claim 4, characterized in that: The top of the reactor (1) is equipped with a protective cover (3), and the stirring shaft (8), stirring motor (10) and sliding rod (16) are all located inside the protective cover (3).

7. The hybrid reaction system for farmland soil pollution remediation based on biodegradation as described in claim 6, characterized in that: A return spring (17) is sleeved on the outside of the slide rod (16). The bottom end of the return spring (17) is connected to the top of the slide rod (16), and the top end of the return spring (17) is connected to the top wall of the slide rod (16).

8. The hybrid reaction system for farmland soil pollution remediation based on biodegradation as described in claim 1, characterized in that: Multiple crushing rods (15) are provided, and the multiple crushing rods (15) are arranged in a circumferential array on the outer wall of the sliding mouth (13).

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