Soil pollution remediation small-scale test reaction device
By designing a small-scale reaction device for soil pollution remediation, the problems of unreasonable mixing device and insufficient monitoring were solved, achieving uniform distribution of reagents and accuracy of test results, while reducing test costs and equipment maintenance difficulty.
Patent Information
- Application Number
- CN202520376879.3
- Authority / Receiving Office
- CN · China
- Patent Type
- Utility models(China)
- Current Assignee / Owner
- Filing Date
- 2025-03-05
- Publication Date
- 2026-02-17
- Estimated Expiration
- 2035-03-05
AI Technical Summary
In small-scale chemical remediation experiments, existing soil pollution remediation devices suffer from poorly designed mixing devices, resulting in uneven mixing of reagents and soil, difficulty in cleaning, and a lack of real-time monitoring equipment, which affects the accuracy and repeatability of test results.
A pilot-scale reaction device for soil pollution remediation was designed, comprising a mixing reaction chamber, a stirring assembly, and a monitoring assembly. The amount of reagent added is controlled by a solenoid valve, the reagent is mixed with the soil using a stirring blade, and the device is equipped with a real-time monitoring assembly to obtain experimental parameters. The device is also detachable for easy cleaning and maintenance.
This achieves uniform distribution of the reagent, improves the accuracy and reliability of test results, reduces test errors and costs, and ensures the continuity of the test and the service life of the equipment.
Smart Images
Figure CN223916280U_ABST
Abstract
Description
Technical Field
[0001] This utility model relates to the field of soil pollution remediation devices, and in particular to a pilot-scale reaction device for soil pollution remediation. Background Technology
[0002] Currently, the main methods for soil pollution remediation include physical remediation, chemical remediation, and biological remediation. Among them, chemical remediation is a method that uses chemical remediation agents to react with pollutants in the soil through chemical reactions such as adsorption, complexation, and redox, thereby reducing the content or toxicity of pollutants in the soil.
[0003] In existing technologies, beakers are mostly used as reaction vessels during experiments. To obtain optimal experimental parameters such as moisture content, pH value, soil particle size, and reagent addition ratio, different batches and gradients need to be set up, resulting in long experimental cycles and heavy testing tasks. Especially for long-term dynamic experiments, a large number of experimental groups are required for destructive sampling. Currently, in chemical remediation simulation experiments on small areas of soil, the mixing devices in some reaction chambers are poorly designed, failing to ensure thorough and uniform mixing of the reagent and soil. Furthermore, most of these devices are fixed inside the chamber, making cleaning and maintenance difficult, and hindering thorough cleaning of the reaction chamber, thus affecting the accuracy and repeatability of the experimental results. Moreover, the environmental conditions of the soil within most reaction chambers cannot be determined, and real-time, continuous monitoring equipment is lacking, making it impossible to obtain relevant indicators and changes in soil and reagents during the experiment in a timely manner.
[0004] Therefore, this patent addresses the shortcomings of existing products by providing a simple and efficient soil pollution remediation reaction device. This device is mainly used for small-scale experiments on solidification, stabilization, and passivation soil remediation, in order to solve the problems mentioned above. Utility Model Content
[0005] The purpose of this invention is to address the shortcomings of existing technologies by proposing a small-scale reaction device for soil pollution remediation. When using this device, appropriate amounts of remediation agents can be accurately added according to different experimental needs and soil conditions, avoiding experimental errors caused by adding too much or too little agent.
[0006] To achieve the above objectives, this utility model provides the following technical solution: a small-scale reaction device for soil pollution remediation, comprising a mixing reaction chamber, a chamber cover, a stirring assembly, and a monitoring assembly. The lower end of the mixing reaction chamber is slidably connected to a discharge slide plate, the upper end of the chamber cover is fixedly provided with a feed pipe, the inside of the feed pipe is provided with a solenoid valve, and the upper end of the feed pipe is fixedly provided with a reagent storage bottle.
[0007] The mixing assembly includes a drive motor and a mixing rod. Two mixing blades are fixedly arranged around the lower end of the mixing rod. The monitoring assembly includes a main body. A soil temperature probe, a pressure sensor, and a humidity probe are fixedly arranged on the upper end of the main body.
[0008] Furthermore, a base frame is provided at the lower end of the mixing reaction chamber, and a support foot is fixedly provided at the lower end of the base frame.
[0009] Furthermore, the lower end of the mixing reaction chamber has a trapezoidal structure that is wider at the top and narrower at the bottom, and the drive motor is fixedly mounted on the upper end of the chamber cover.
[0010] Furthermore, the two stirring blades are divided into upper and lower layers, with the upper stirring blade being 10 centimeters longer than the lower stirring blade.
[0011] Furthermore, a spray pipe is connected to the lower end of the feed pipe, and multiple nozzles are fixedly arranged around the lower end of the spray pipe.
[0012] Furthermore, the output end of the drive motor is fixedly provided with a plug slot, and the stirring rod is inserted into the plug slot through the box cover.
[0013] Furthermore, the lid is rotatably mounted on the upper end of the mixing reaction chamber, and a monitoring port is provided through the upper end of the lid.
[0014] Furthermore, the mixing reaction chamber is made of transparent material, and fixing buckles are fixedly installed on both sides of the upper end of the mixing reaction chamber, and a scale is provided on the front end of the mixing reaction chamber.
[0015] This utility model has the following beneficial effects:
[0016] 1. This utility model proposes a small-scale reaction device for soil pollution remediation. During use, the device, controlled by a solenoid valve in the feed pipe, precisely regulates the amount and timing of the remediation agent delivered from the storage bottle to the spray pipe. This precise control allows for accurate addition of the appropriate amount of remediation agent based on different experimental needs and soil conditions, avoiding experimental errors caused by adding too much or too little agent. Furthermore, multiple nozzles on the spray pipe evenly spray the remediation agent into the contaminated soil within the mixing reaction chamber, ensuring uniform distribution of the agent. This facilitates sufficient contact and reaction between the agent and the soil, preventing localized excessively high or low agent concentrations. The resulting experimental results are more representative and accurate. In addition, uniform agent distribution improves agent utilization efficiency, reduces waste, and lowers experimental costs.
[0017] 2. This utility model proposes a small-scale reaction device for soil pollution remediation. During use, after the experiment, simply opening the discharge slide allows for rapid discharge of soil from the chamber. This design significantly improves discharge efficiency, reduces the time and labor costs required for discharge, and ensures a smoother discharge process. Furthermore, the trapezoidal shape (wider at the top and narrower at the bottom) effectively reduces soil residue in the mixing reaction chamber, increasing the effective area of the discharge port, reducing the risk of material blockage, achieving efficient discharge, and preventing residual soil from affecting subsequent experiments, thus ensuring the accuracy of each test. In addition, the detachable design of the mixing components allows for easy removal and cleaning when not in use. This not only avoids cross-contamination between different experiments, ensuring the accuracy of each test, but also facilitates daily maintenance and upkeep of the mixing components, extending their service life. The detachable design also makes the equipment more flexible in operation, adapting to different experimental needs.
[0018] 3. This utility model proposes a small-scale reaction device for soil pollution remediation. During use, a real-time monitoring component is installed within the mixing reaction chamber to acquire various parameter data in a timely manner. This allows researchers to understand various changes during the experiment, such as soil temperature, soil pressure, pore water pressure, and humidity, providing accurate and real-time data support for subsequent data analysis and research. Real-time monitoring also allows for the timely detection of problems during the experiment, enabling appropriate adjustments to ensure its smooth progress. Furthermore, a well-designed placement of the monitoring component can effectively extend the equipment's lifespan and reduce experimental costs. Attached Figure Description
[0019] Figure 1 This is a schematic diagram of the overall structure of this utility model.
[0020] Figure 2 This is a cross-sectional view of the present invention;
[0021] Figure 3 This is an isometric schematic diagram of the material discharge slide plate of this utility model;
[0022] Figure 4 This is an exploded view of the stirring assembly of this utility model;
[0023] Figure 5 This is a top view of the monitoring component of this utility model.
[0024] Legend:
[0025] 1. Mixing reaction chamber; 2. Chamber cover; 3. Reagent storage bottle; 4. Feed pipe; 5. Solenoid valve; 6. Spray pipe; 7. Nozzle; 8. Mixing assembly; 9. Monitoring assembly; 12. Base frame; 13. Support feet; 10. Monitoring port; 11. Discharge slide plate; 801. Mixing rod; 802. Mixing blade; 803. Drive motor; 901. Soil temperature probe; 902. Pressure sensor; 903. Humidity probe. Detailed Implementation
[0026] 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.
[0027] Reference Figure 1 , Figure 2 and Figure 3 This utility model provides an embodiment of a small-scale reaction device for soil pollution remediation, comprising a mixing reaction chamber 1, a chamber cover 2, a stirring assembly 8, and a monitoring assembly 9. A discharge slide plate 11 is slidably engaged at the lower end of the mixing reaction chamber 1. A feed pipe 4 is fixedly mounted at the upper end of the chamber cover 2, and a solenoid valve 5 is installed inside the feed pipe 4. A reagent storage bottle 3 is fixedly mounted at the upper end of the feed pipe 4. A base frame 12 is mounted at the lower end of the mixing reaction chamber 1, and support legs 13 are fixedly mounted at the lower end of the base frame 12. The lower end of the mixing reaction chamber 1 has a trapezoidal structure that is wider at the top and narrower at the bottom. The structure includes a drive motor 803 fixedly mounted on the upper end of the cover 2, a spray pipe 6 connected to the lower end of the feed pipe 4, multiple nozzles 7 fixedly mounted around the lower end of the spray pipe 6, an insertion slot fixedly mounted on the output end of the drive motor 803, a stirring rod 801 inserted through the cover 2 and inserted into the insertion slot, the cover 2 being rotatably mounted on the upper end of the mixing reaction chamber 1, a monitoring port 10 being opened through the upper end of the cover 2, the mixing reaction chamber 1 being made of transparent material, fixing buckles fixedly mounted on both sides of the upper end of the mixing reaction chamber 1, and a scale being set on the front end of the mixing reaction chamber 1.
[0028] Specifically, by designing the bottom of the mixing reaction chamber 1 into a trapezoidal structure that is wider at the top and narrower at the bottom, it is beneficial for the soil to be naturally discharged from top to bottom under the action of gravity. The narrower bottom guides the soil to gather more concentratedly towards the discharge port, reducing soil residue in the reaction chamber. The discharge slide plate 11 facilitates the convenient and quick discharge of soil from the mixing reaction chamber 1. The fixing buckle allows the monitoring component 9 to be stored on the side of the mixing reaction chamber 1 when the device is not in use, which helps to prevent the monitoring component 9 from being damaged by the reagents due to long-term corrosion inside the mixing reaction chamber 1, thereby extending the service life of the equipment. When the device is in use, the monitoring component 9 can also be monitored... The inlet 10 is placed inside the mixing reaction chamber 1 to achieve real-time monitoring of various parameters within the mixing reaction chamber 1, timely acquisition of key data during the experiment, and accurate basis for subsequent analysis and research; the reagent storage bottle 3 is convenient for storing remediation reagents; the feed pipe 4 is connected to the mixing reaction chamber 1, which is convenient for delivering reagents into the mixing reaction chamber 1; the solenoid valve 5 is convenient for controlling the amount of reagent entering; the spray pipe 6 and the nozzle 7 are convenient for spraying the remediation reagent in the reagent storage bottle 3 onto the contaminated soil for remediation; the base frame 12 and the support feet 13 are convenient for providing support for the mixing reaction chamber 1, ensuring the stability of the device, and have a certain space from the ground, which is convenient for material discharge.
[0029] Reference Figure 4 and Figure 5 The mixing assembly 8 includes a drive motor 803 and a mixing rod 801. Two mixing blades 802 are fixedly arranged around the lower end of the mixing rod 801. The monitoring assembly 9 includes a main body 904. A soil temperature probe 901, a pressure sensor 902, and a humidity probe 903 are fixedly arranged on the upper end of the main body 904. The two mixing blades 802 are divided into upper and lower layers. The upper mixing blade 802 is 10 centimeters longer than the lower mixing blade 802. The output end of the drive motor 803 is fixedly provided with a plug-in slot. The mixing rod 801 passes through the box cover 2 and is inserted into the plug-in slot.
[0030] Specifically, the two unequal-length stirring blades 802 are well-suited to the structure of the mixing reaction chamber 1. Therefore, selecting a suitable stirring component 8 can greatly improve the mixing efficiency and uniformity of soil and reagents within the mixing reaction chamber 1, contributing to the accuracy and reliability of the experimental results. The stirring rod 801, inserted through the chamber cover 2 into the insertion slot, allows for easy removal and cleaning when not in use, effectively preventing cross-contamination between different experiments. Furthermore, the stirring component 8 can be replaced according to experimental needs, facilitating maintenance and upkeep of the device. The soil temperature probe 901, pressure sensor 902, and humidity probe 903 enable real-time, continuous monitoring of various parameters during the experiment, transmitting the data to a computer for recording and analysis. The transparent mixing reaction chamber 1 facilitates observation of the reaction after reagent addition.
[0031] Working principle: When using this device, the repair agent in the agent storage bottle 3 is first delivered to the spray pipe 6 through the control of the solenoid valve 5 in the feed pipe 4. Then, it is evenly sprayed onto the soil inside the mixing reaction chamber 1 through the nozzle 7 on the spray pipe 6. At the same time as spraying, the drive motor 803 is started to drive the stirring rod 801 and stirring blade 802 to rotate. After the reaction is completed, the monitoring component 9 is put into the monitoring port 10 on the cover 2 to monitor the various parameters inside the mixing reaction chamber 1 in real time. After the test is completed, the discharge slide plate 11 at the bottom of the mixing reaction chamber 1 is opened to discharge the soil inside the mixing reaction chamber 1. When the stirring rod 801 and stirring blade 802 are no longer needed, they can be removed and cleaned.
[0032] Finally, it should be noted that the above description is only a preferred embodiment of the present utility model and is not intended to limit the present utility model. Although the present utility model has been described in detail with reference to the foregoing embodiments, those skilled in the art can still modify the technical solutions described in the foregoing embodiments or make equivalent substitutions for some of the technical features. Any modifications, equivalent substitutions, improvements, etc., made within the spirit and principles of the present utility model should be included within the protection scope of the present utility model.
Claims
1. A soil pollution remediation pilot reaction device, comprising a mixing reaction box (1), a box cover (2), a stirring assembly (8) and a monitoring assembly (9), characterized in that: The lower end of the mixing reaction box (1) is slidably connected with a discharge slide plate (11), the upper end of the box cover (2) is fixedly provided with a feeding pipe (4), the inside of the feeding pipe (4) is provided with a solenoid valve (5), the upper end of the feeding pipe (4) is fixedly provided with a medicine storage bottle (3). The stirring assembly (8) comprises a driving motor (803) and a stirring rod (801), the lower end of the stirring rod (801) is fixedly provided with two stirring blades (802), the monitoring assembly (9) comprises a main body (904), the upper end of the main body (904) is fixedly provided with a soil temperature probe (901), a pressure sensor (902) and a humidity probe (903).
2. The soil pollution remediation pilot reaction device according to claim 1, characterized in that: The lower end of the mixing reaction box (1) is provided with a base frame (12), the lower end of the base frame (12) is fixedly provided with supporting legs (13).
3. The small-scale reaction device for soil remediation according to claim 1, characterized in that: The lower end of the mixing reaction box (1) is in a trapezoidal structure with the width of the upper end being larger than that of the lower end, and the driving motor (803) is fixedly arranged at the upper end of the box cover (2).
4. The small-scale reaction device for soil remediation according to claim 1, characterized in that: The two stirring blades (802) are divided into two layers, and the upper stirring blade (802) is longer than the lower stirring blade (802) by ten centimeters.
5. The soil remediation bench-scale reactor according to claim 1, characterized in that: The lower end of the feeding pipe (4) is connected with a spraying pipe (6), and the lower end of the spraying pipe (6) is fixedly provided with a plurality of spray heads (7).
6. The soil remediation bench scale reaction apparatus of claim 1, wherein: The output end of the driving motor (803) is fixedly provided with a plug-in slot, and the stirring rod (801) is inserted into the plug-in slot.
7. The soil remediation bench scale reaction apparatus of claim 1, wherein: The box cover (2) is rotatably arranged at the upper end of the mixing reaction box (1), and the upper end of the box cover (2) is provided with a monitoring opening (10).
8. The soil remediation bench scale reaction apparatus of claim 1, wherein: The mixing reaction box (1) is made of transparent material, the upper end of the mixing reaction box (1) is fixedly provided with a fixing buckle on each side, and the front end of the mixing reaction box (1) is provided with a scale.