Injection-reaction-monitoring integrated device for microbial amendment of contaminated soil

Abstract

The application discloses an injection-reaction-monitoring integrated device for microbial improvement of contaminated soil, which comprises a tractor body, a bucket is arranged at the front end of the tractor body through a first turnover mechanism, a work platform is arranged at the rear end of the tractor body through a second turnover mechanism, a protective fence is fixedly connected to the top outer side of the work platform, a first air cylinder is fixedly connected to the inner wall of each of the two side protective fences, and a cross beam is drivingly connected to the output end of the first air cylinder. The multiple groups of downhole assemblies and grouting assemblies are matched to inject the improvement agent into the soil at different depths. The multiple groups of downhole assemblies and grouting assemblies can work synchronously, realize multi-point diffusion of the improvement agent, improve the uniformity of microbial distribution, and improve the operation efficiency. The device realizes accurate injection of the microbial nutrient solution in the contaminated site, reaction culture of the microorganisms in the soil, real-time monitoring of the repair process, and intelligent control and dynamic feedback of the whole microbial repair process.

Description

Technical Field

[0001] This invention belongs to the field of environmental engineering and soil remediation technology, specifically relating to an integrated injection-reaction-monitoring device for microbial improvement of contaminated soil. Background Technology

[0002] With rapid industrialization and urbanization, large amounts of organic pollutants, heavy metal ions, and petroleum compounds have entered the soil environment, causing varying degrees of pollution. Traditional soil remediation methods mainly include physical remediation, chemical remediation, and phytoremediation, but these methods often have drawbacks such as high cost, long remediation cycles, and a high risk of secondary pollution.

[0003] In recent years, microbial remediation technology has been widely researched and applied due to its green, environmentally friendly, and sustainable nature. By injecting specific microorganisms into contaminated soil or promoting the growth of indigenous microorganisms, the decomposition and transformation of organic pollutants can be accelerated. However, in practical applications, microbial remediation still faces the following major challenges:

[0004] (1) Poor uniformity of microbial injection: Traditional injection methods often use single-point injection or surface spraying, which makes it difficult to achieve uniform distribution in deep and wide areas;

[0005] (2) Unstable environment: After injection, microorganisms are prone to die in large numbers due to lack of suitable nutrition, temperature and oxygen conditions, resulting in low repair efficiency;

[0006] (3. Uncontrollable process: Microbial metabolic reactions are dynamic, and there is currently a lack of devices that can monitor temperature, pH, oxygen content and reaction rate in soil in real time.)

[0007] (4) Disconnection of control: Most existing systems are split devices, which cannot realize the linkage control of injection, reaction and monitoring, affecting the timeliness and accuracy of the repair process.

[0008] Therefore, there is an urgent need for an integrated device that can achieve precise injection of microorganisms into contaminated soil, controllable reaction environment, and real-time monitoring of remediation status, in order to improve the stability and efficiency of microbial remediation. Summary of the Invention

[0009] To address the aforementioned technical problems, this invention provides an integrated injection-reaction-monitoring device for microbial remediation of contaminated soil. Through the cooperation of multiple sets of drilling and grouting components, the modifier is injected into soil at different depths, achieving multi-point diffusion of the modifier, improving the uniformity of microbial distribution, and increasing operational efficiency. The intelligent control and dynamic feedback of the entire microbial remediation process overcomes the problems of uneven microbial injection, uncontrollable reaction environment, and lagging monitoring in existing technologies.

[0010] The embodiments of the present invention provide the following technical solutions:

[0011] An integrated injection-reaction-monitoring device for microbial remediation of contaminated soil includes a tractor body. A bucket is mounted on the front end of the tractor body via a first tilting mechanism, and a working platform is mounted on the rear end of the tractor body via a second tilting mechanism. A protective frame is fixedly connected to the top outer side of the working platform. A first cylinder is fixedly connected to the inner wall of both protective frames, and a crossbeam is driven to the output end of the first cylinder. Multiple mounting brackets are fixedly connected between the two crossbeams. Multiple evenly distributed drilling components are detachably mounted on the mounting brackets. A second cylinder is mounted on the top of the crossbeam. A pressure plate is driven to the output ends of two second cylinders at the two ends of the mounting bracket. A mixing box is fixedly connected to the top of the inner side of the protective frame. A first storage chamber, a second storage chamber, and an oxygen supply chamber, which communicate with the inner cavity of the mixing box, are mounted on the outer side of the top plate of the mixing box. A drive pump is fixedly connected to the outer side of the mixing box, and the input end of the drive pump communicates with the inner cavity of the mixing box. The output end of the drive pump is connected to a grouting component via a high-pressure hose.

[0012] The drilling assembly includes a spiral drill barrel, a positioning block, and a drive mechanism. The spiral drill barrel passes through the positioning block and is rotatably engaged with a bearing. Suspension plates are fixedly connected to both sides of the positioning block. The suspension plates are snapped into the positioning block and locked with screws. A storage channel is provided at the axis of the spiral drill barrel. The drive mechanism drives the spiral drill barrel to rotate.

[0013] The grouting assembly includes a grouting pipe, a sealing sleeve, and a plug. The sealing sleeve is detachably installed on the top of the grouting pipe via a sealing bearing, and the plug is fixedly connected to the bottom of the grouting pipe. Multiple nozzles are distributed in a ring around the outside of the grouting pipe, and the nozzles communicate with the inside of the grouting pipe. Multiple layers of sealing gaskets are fixedly connected to the outer wall of the grouting pipe.

[0014] The grouting assembly slides with the inner wall of the receiving channel. A limiting plate is fixedly connected to the top of the outside of the grouting pipe, and the limiting plate slides with the suspension plates on both sides. A guide vertical plate is detachably installed on the top of the limiting plate. The guide vertical plate is located directly below the pressure plate. A spring is sleeved between the top of the spiral drill cylinder and the bottom wall of the limiting plate on the outside of the grouting pipe.

[0015] The first storage chamber contains a microbial solution, and the second storage chamber contains a nutrient solution. An agitator is installed inside the mixing tank to mix the microbial solution, nutrient solution, and oxygen entering the mixing tank into a modifier containing microbial nutrient solution. The modifier is injected into the soil at different depths through the drilling assembly and the grouting assembly.

[0016] Preferably, a sliding rod is provided between the two crossbeams and distributed parallel to the mounting frame. A hoop plate is connected to the suspension plate by screws, and the hoop plate slides in cooperation with the sliding rod. A sliding sleeve is slidably fitted on the outside of the sliding rod, and an upper baffle is fixedly connected to the outer wall of the sliding sleeve. The surface of the upper baffle has a through hole that slides in cooperation with the guide vertical plate. The guide vertical plate is embedded in the gap between the two suspension plates.

[0017] The equipment also includes a monitoring module, which includes at least one monitoring rod. The size of the monitoring rod is the same as that of the grouting pipe, and the matching method between the monitoring rod and the drilling assembly is the same as that between the grouting pipe and the drilling assembly. Temperature sensors, humidity sensors, pH sensors, oxygen content sensors, and pollutant concentration sensors are embedded on the outer wall of the monitoring rod. When the monitoring rod is inserted into the sensing nodes at different depths in the soil, it can collect real-time data on the soil's temperature, humidity, pH, oxygen content, and pollutant concentration. The sensor components of the monitoring module are wirelessly connected to the control terminal of the tractor vehicle.

[0018] Preferably, the number of the auger barrels is equal to the sum of the number of grouting pipes and monitoring rods;

[0019] The inner wall of the auger is stepped, with the inner diameter at the bottom of the receiving channel being larger than the inner diameter at the top of the receiving channel; a plug is also installed at the bottom of the monitoring rod, with the sealing gasket at the bottom fitting against the upper surface of the plug; the diameter of the plug is equal to the inner diameter at the bottom of the receiving channel, and the outer diameter of the sealing gasket is equal to the inner diameter at the top of the receiving channel.

[0020] Preferably, the drive mechanism includes a worm wheel, a worm, and a drive motor. The worm wheel is coaxially sleeved on the outer top of the spiral drill barrel. The worm is rotatably connected to one side of the two suspension plates. The drive motor is fixed to the outer wall of one of the two suspension plates, and the output shaft of the drive motor is connected to the worm, so that the worm meshes with and drives the worm wheel to rotate.

[0021] Preferably, the drive mechanism includes a driving sprocket, a driven sprocket, an annular sprocket, and a chain. The annular sprocket is coaxially sleeved on the outer top of the auger barrel. The annular sprockets of multiple auger barrels located on the same mounting frame are driven by a drive motor and a chain. The driving sprocket and the driven sprocket are respectively rotatably mounted on two suspension plates on the outermost side of the same mounting frame. The driving sprocket is driven by a drive motor. The chain is sleeved on the outside of the driving sprocket, the driven sprocket, and the multiple annular sprockets. Pressure rollers are rotatably connected to both sides of the positioning block. The pressure rollers and the annular sprockets contact the inner and outer sides of the chain, respectively.

[0022] Preferably, a metering pump is installed on the delivery pipeline between the first and second storage compartments and the inner cavity of the mixing chamber, and a solenoid valve is installed on the delivery pipeline between the oxygen supply compartment and the inner cavity of the mixing chamber.

[0023] Preferably, the control terminal is equipped with a microcontroller, and an A / D converter and a D / A converter are electrically connected to the input and output terminals of the microcontroller, respectively. Temperature sensor, humidity sensor, pH sensor, oxygen content sensor and pollutant concentration sensor are all electrically connected to the A / D converter. The first cylinder, the second cylinder, the drive pump, the stirrer, the drive motor of the drive mechanism, the metering pump and the solenoid valve are all electrically connected to the D / A converter.

[0024] Preferably, the working platform is provided with walking wheel sets on both sides of the front end, and a follower wheel set is installed at the rear end of the working platform. In the working state, the bottom ends of the walking wheel set and the follower wheel set are in contact with the ground. A stirring frame is rotatably connected to the bottom of the mixing box cavity through a sealed bearing, and the end of the stirring frame extends out of the outer side of the protective frame. The rotating shaft located at the center of the follower wheel set is connected to the stirring frame through a chain drive mechanism.

[0025] Preferably, both the first and second flipping mechanisms are driven by hydraulic cylinders in conjunction with a hydraulic system, and the flipping angle range of both the first and second flipping mechanisms is set to 0-90°.

[0026] Compared with the prior art, the present invention has the following advantages:

[0027] 1. By coordinating multiple sets of drilling and grouting components, the modifier is injected into soil at different depths. The multiple sets of drilling and grouting components can operate simultaneously, realizing multi-point diffusion of the modifier, improving the uniformity of microbial distribution, and increasing operational efficiency. It enables precise injection of microbial nutrient solution into contaminated sites, real-time monitoring of microbial reaction and cultivation in the soil, and real-time monitoring of the remediation process. It achieves intelligent control and dynamic feedback of the entire microbial remediation process, overcoming the problems of uneven microbial injection, uncontrollable reaction environment, and lagging monitoring in existing technologies.

[0028] 2. The monitoring module acquires and provides real-time feedback on changes in soil temperature, pH, and oxygen content. The control terminal automatically adjusts injection parameters based on the data, and automatically adjusts oxygen, temperature, and nutrient concentrations based on real-time data to ensure optimal metabolic state of microorganisms and make the reaction controllable. It monitors changes in pollutant concentration to assess the remediation effect, realizes microbial activity assessment, nutrient supply adjustment, reaction curve visualization, and remediation effect prediction, and achieves the integration of the three functions of "injection-reaction-monitoring", avoiding information and control delays between traditional separate devices.

[0029] 3. This equipment adopts a modular design, which is convenient for installation and maintenance. It is easy to set up and disassemble on site, and can be reused, which significantly reduces repair costs. During operation, construction is convenient and easy to operate, making it easy to promote and apply. Attached Figure Description

[0030] Figure 1This is a schematic diagram of the overall structure of the integrated injection-reaction-monitoring device provided by the present invention.

[0031] Figure 2 This is a first-view perspective perspective view of the main body structure of the integrated injection-reaction-monitoring device of the present invention.

[0032] Figure 3 This is a second-view perspective perspective view of the main body structure of the integrated injection-reaction-monitoring device of the present invention.

[0033] Figure 4 for Figure 3 First-person perspective 3D view of the structure shown (excluding the drilling assembly, grouting assembly, and protective cover).

[0034] Figure 5 for Figure 4 First-person perspective 3D view of the structure shown (excluding the drilling assembly, grouting assembly, and protective cover).

[0035] Figure 6 This is a first-view perspective perspective view of the installation and assembly structure of the drilling assembly and grouting assembly in this invention.

[0036] Figure 7 This is a second-view perspective perspective view of the installation and assembly structure of the drilling assembly and grouting assembly in this invention.

[0037] Figure 8 This is a front view of the combined structure of the spiral drill barrel, positioning block, and grouting pipe in this invention.

[0038] Figure 9 for Figure 8 The structure shown is a cross-sectional view along line AA.

[0039] Figure 10 for Figure 8 Exploded view of the structure shown.

[0040] Figure 11 This is a cross-sectional view of the combined structure of the auger drill barrel, positioning block, and monitoring rod in this invention.

[0041] Figure 12 This is a schematic diagram of the distribution structure of multiple sets of drilling components and grouting components provided in Embodiment 1 of the present invention.

[0042] Figure 13 This is a schematic diagram of a driving method for the driving mechanism provided in Embodiment 2 of the present invention.

[0043] Figure 14 This is a schematic diagram of another driving method for the driving mechanism provided in Embodiment 3 of the present invention.

[0044] Figure 15 This is a schematic diagram of another way in which the drilling assembly and the grouting assembly are combined, as provided in Embodiment 4 of the present invention.

[0045] Figure 16 for Figure 15 The structure shown is a first-person perspective 3D view.

[0046] Figure 17 for Figure 15 The structure shown is a second-view stereoscopic view.

[0047] Figure 18 This is a partially enlarged view of the mating structure provided in Embodiment 4 of the present invention.

[0048] Figure 19 The control principle diagram of the intelligent monitoring reaction system provided by the present invention.

[0049] Marked in the image:

[0050] Tractor body-1; Bucket-2; Working platform-3; Protective frame-4; First cylinder-5; Crossbeam-6; Mounting bracket-7;

[0051] Drilling assembly - 8; Spiral drill barrel - 801; Positioning block - 802; Drive mechanism - 803; Worm gear - 8031; Worm - 8032; Drive motor - 8033; Drive sprocket - 8034; Drive sprocket - 8035; Ring sprocket - 8036; Chain - 8037; Pressure roller - 8038; Suspension plate - 804;

[0052] Second cylinder-9; Pressure plate-10; Mixing box-11; First storage compartment-12; Second storage compartment-13; Oxygen supply compartment-14; Drive pump-15; High-pressure hose-16;

[0053] Grouting assembly-17; Grouting pipe-171; Sealing sleeve-172; Plug-173; Nozzle-174; Sealing gasket-175; Limiting plate-176; Guide plate-177; Spring-178;

[0054] Agitator-18; Slide rod-19; Hoop plate-20; Sliding sleeve-21; Upper baffle-22; Monitoring rod-23; Temperature sensor-24; Humidity sensor-25; pH sensor-26; Oxygen content sensor-27; Pollutant concentration sensor-28; Metering pump-29; Solenoid valve-30; Microcontroller-31; Walking wheel set-32; Follow-up wheel set-33; Agitator frame-34; Chain drive mechanism-35; Plow blade-36; Output pipe-37; Atomizing nozzle-38; Combination plate-39; Bolt-40; Metal plate sleeve-41. Detailed Implementation

[0055] The technical solutions of the embodiments of the present invention will be clearly and completely described below with reference to the accompanying drawings. Obviously, the described embodiments are only some embodiments of the present invention, and not all embodiments. Based on the embodiments of the present invention, all other embodiments obtained by those skilled in the art without creative effort are within the scope of protection of the present invention.

[0056] In the description of this invention, it should be noted that the terms "upper," "lower," "inner," "outer," "front end," "rear end," "both ends," "one end," and "the other end," etc., indicate the orientation or positional relationship based on the orientation or positional relationship shown in the accompanying drawings. They are used only for the convenience of describing this invention and for simplifying the description, and do not indicate or imply that the device or element referred to must have a specific orientation, or be constructed and operated in a specific orientation. Therefore, they should not be construed as limitations on this invention. Furthermore, the terms "first" and "second" are used for descriptive purposes only and should not be construed as indicating or implying relative importance.

[0057] In the description of this invention, it should be noted that, unless otherwise explicitly specified and limited, the terms "installed," "equipped with," "connected," etc., should be interpreted broadly. For example, "connection" can refer to a detachable connection: it can be a mechanical connection; it can also be an indirect connection through an intermediate medium, or it can be a connection within two components. Those skilled in the art can understand the specific meaning of the above terms in this invention based on the specific circumstances.

[0058] like Figures 1-12The integrated injection-reaction-monitoring device for microbial remediation of contaminated soil shown includes a tractor body 1. A bucket 2 is mounted at the front end of the tractor body 1 via a first tilting mechanism to level the ground in the treatment area ahead of the tractor body 1 in the direction of travel. A working platform 3 is mounted at the rear end of the tractor body 1 via a second tilting mechanism. A protective frame 4 is fixedly connected to the top outer side of the working platform 3. First cylinders 5 are fixedly connected to the inner walls of both protective frames 4, and the output ends of the first cylinders 5 are driven by crossbeams 6. Multiple mounting brackets 7 are fixedly connected between the two crossbeams 6. Multiple evenly distributed drilling components 8 are detachably mounted on the mounting brackets 7. Second cylinders 9 are mounted on the top of the crossbeams 6. Pressure plates 10 are driven between the output ends of two second cylinders 9 at corresponding ends of the mounting brackets 7. A mixing chamber 11 is fixedly connected to the top of the inner side of the protective frame 4. A first storage chamber 12, a second storage chamber 13, and an oxygen supply chamber 14, which communicate with the inner cavity of the mixing chamber 11, are mounted on the outer side of the top plate of the mixing chamber 11. A drive pump 15 is fixedly connected to the side, and the input end of the drive pump 15 is connected to the inner cavity of the mixing tank 11. The output end of the drive pump 15 is connected to the grouting assembly 17 through a high-pressure hose 16. The lower drilling assembly 8 includes a spiral drill barrel 801, a positioning block 802, and a drive mechanism 803. The spiral drill barrel 801 passes through the positioning block 802 and is rotatably engaged with it by bearings. Suspension plates 804 are fixedly connected to both sides of the positioning block 802. The suspension plates 804 are snapped into the positioning block 802 and locked with screws. The spiral drill barrel 801... A storage channel is provided at the axis, and the drive mechanism 803 drives the spiral drill barrel 801 to rotate. The grouting assembly 17 includes a grouting pipe 171, a sealing sleeve 172, and a plug 173. The sealing sleeve 172 is detachably installed at the top of the grouting pipe 171 via a sealing bearing, and the plug 173 is fixedly connected to the bottom of the grouting pipe 171. Multiple nozzles 174 are distributed in a ring around the outside of the grouting pipe 171, and the nozzles 174 communicate with the inside of the grouting pipe 171. Multiple layers of sealing isolation gaskets 175 are fixedly connected to the outer wall of the grouting pipe 171. The drilling assembly 8 and the grouting assembly 17 are movably coupled to achieve injection at different depths. There are multiple nozzles 174, which are arranged in layers along the axial direction of the grouting pipe 171 to form a layered liquid supply structure, achieving three-dimensional uniform improvement of contaminated soil.

[0059] The grouting assembly 17 is slidably fitted to the inner wall of the receiving channel. A limiting plate 176 is fixedly connected to the top of the outer side of the grouting pipe 171, and the limiting plate 176 is slidably fitted to the suspension plates 804 on both sides. A guide vertical plate 177 is detachably installed on the top of the limiting plate 176. The guide vertical plate 177 is located directly below the pressure plate 10. A spring 178 is sleeved between the top of the auger cylinder 801 and the bottom wall of the limiting plate 176 on the outer side of the grouting pipe 171.

[0060] The auger barrel 801 and the grouting pipe 171 can be made of corrosion-resistant alloys or composite materials.

[0061] The first storage chamber 12 contains a microbial solution, and the second storage chamber 13 contains a nutrient solution (or buffer solution). An agitator 18 is installed inside the mixing chamber 11 to mix the microbial solution, nutrient solution (or buffer solution), and oxygen entering the mixing chamber 11 into a soil conditioner containing microbial nutrient solution. The conditioner is then injected into the soil at different depths via the drilling assembly 8 and the grouting assembly 17.

[0062] The prepared modifier has strong applicability and can be used for customized microbial remediation of various pollutants such as petroleum hydrocarbons, heavy metals, and organochlorine pesticides.

[0063] The drilling assembly 8 and the grouting assembly 17 can also be configured using a combination of a plowshare 36 and an output pipe 37, where the drilling assembly 8 uses a plowshare 36, and the grouting assembly 17 uses an output pipe 37 and an atomizing nozzle 38. For example... Figures 15-18 As shown, the plow blade 36 is fixed to the bottom of the working platform 3 by means of the combination plate 39 and bolts 40 on the beam of the working platform 3. A metal plate sleeve 41 is fixedly connected to the rear end of the plow blade 36. The output pipe 37 is interference-fitted into the inside of the through hole of the metal plate sleeve 41. The bottom end of the output pipe 37 is equipped with an atomizing nozzle 38, and the top end of the output pipe 37 is connected to the high-pressure hose 16.

[0064] Furthermore, in the above scheme, a sliding rod 19 is provided between the two side beams 6, which is parallel to the mounting frame 7. A hoop plate 20 is connected to the suspension plate 804 by screws, and the hoop plate 20 is slidably engaged with the sliding rod 19. A sliding sleeve 21 is slidably engaged on the outside of the sliding rod 19, and an upper baffle 22 is fixedly connected to the outer wall of the sliding sleeve 21. A locking hole is passed through the surface of the upper baffle 22, which is slidably engaged with the guide vertical plate 177. The guide vertical plate 177 is embedded in the gap between the two suspension plates 804.

[0065] The equipment also includes a monitoring module, which comprises at least one monitoring rod 23. The size of the monitoring rod 23 is the same as that of the grouting pipe 171, and the matching method between the monitoring rod 23 and the drilling assembly 8 is the same as that between the grouting pipe 171 and the drilling assembly 8. Temperature sensor 24, humidity sensor 25, pH sensor 26, oxygen content sensor 27, and pollutant concentration sensor 28 are embedded on the outer wall of the monitoring rod 23. This allows the monitoring rod 23 to collect real-time data on soil temperature, humidity, pH, oxygen content, and pollutant concentration as it is inserted into the sensing nodes at different depths in the soil. The sensor components of the monitoring module are wirelessly connected to the control terminal of the tractor vehicle 1. The monitoring rod 23 is configured as a wireless transmission detection rod. After injecting microorganisms, the monitoring rod 23 is driven into the ground to facilitate the detection of various parameters such as temperature, humidity, pH, oxygen content, oxidation-reduction potential, conductivity, and nutrient content.

[0066] To power the sensor components, a power supply module is installed inside the monitoring rod 23. The power supply module can use a lithium battery, or a power supply circuit can be installed inside the monitoring rod 23, with the circuit electrically connected to an external power source via a conductive slip ring at the top of the monitoring rod 23. An electronic control system is used to achieve timed, quantitative, and multi-channel delivery of nutrient solution and gas, automatically adjusting the injection rate and concentration based on monitoring signals.

[0067] Furthermore, in the above scheme, the number of spiral drill barrels 801 is equal to the sum of the number of grouting pipes 171 and monitoring rods 23; the inner wall of the spiral drill barrel 801 is set in a stepped shape, with the inner diameter at the bottom of the receiving channel being larger than the inner diameter at the top of the receiving channel; a plug 173 is also installed at the bottom of the monitoring rod 23, and the sealing isolation pad 175 at the bottom is attached to the upper surface of the plug 173; the diameter of the plug 173 is equal to the inner diameter at the bottom of the receiving channel, and the outer diameter of the sealing isolation pad 175 is equal to the inner diameter at the top of the receiving channel.

[0068] like Figure 13 As shown, the drive mechanism 803 includes a worm gear 8031, a worm 8032, and a drive motor 8033. The worm gear 8031 ​​is coaxially sleeved on the outer top of the spiral drill barrel 801. The worm 8032 is rotatably connected to one side of the two suspension plates 804. The drive motor 8033 is fixed to the outer wall of one of the two suspension plates 804, and the output shaft of the drive motor 8033 is connected to the worm 8032, so that the worm 8032 meshes with and drives the worm gear 8031 ​​to rotate.

[0069] like Figure 14 As shown, the drive mechanism 803 includes a drive sprocket 8034, a driven sprocket 8035, an annular sprocket 8036, and a chain 8037. The annular sprocket 8036 is coaxially sleeved on the outer top of the auger barrel 801. The annular sprockets 8036 of multiple auger barrels 801 located on the same mounting frame 7 are driven by a drive motor 8033 and the chain 8037. The drive sprocket 8034 and the driven sprocket 8035 are respectively rotatably mounted on the two outermost suspension plates 804 corresponding to the same mounting frame 7. The drive sprocket 8034 is driven by the drive motor 8033. The chain 8037 is sleeved on the outside of the drive sprocket 8034, the driven sprocket 8035, and the multiple annular sprockets 8036. Pressure rollers 8038 are rotatably connected to both sides of the positioning block 802. The pressure rollers 8038 and the annular sprockets 8036 contact the inner and outer sides of the chain 8037, respectively. The pressure roller 8038 acts as a tensioning and fitting element on the outside of the chain 8037, ensuring that the driving sprocket 8034, driven sprocket 8035, and annular sprocket 8036 can always be synchronously driven through the chain 8037. Furthermore, multiple annular sprockets 8036 drive multiple augers 801 to rotate in the same direction, achieving the goal of simultaneously drilling multiple holes on the ground.

[0070] Furthermore, in the above scheme, a metering pump 29 is installed on the delivery pipeline between the first storage chamber 12 and the second storage chamber 13 and the inner cavity of the mixing tank 11, and a solenoid valve 30 is installed on the delivery pipeline between the oxygen supply chamber 14 and the inner cavity of the mixing tank 11. In order to improve the activity of microorganisms during transportation, a hole can be drilled at the top of one side of the grouting pipe 171, and an auxiliary oxygen supply channel can be set between the output end of the oxygen supply chamber 14 and the hole at the top of the grouting pipe 171, and the oxygen supply flow rate can be adjusted by a controllable valve.

[0071] like Figure 19 As shown, the control terminal is equipped with a microcontroller 31. An A / D converter and a D / A converter are electrically connected to the input and output terminals of the microcontroller 31, respectively. Temperature sensor 24, humidity sensor 25, pH sensor 26, oxygen content sensor 27, and pollutant concentration sensor 28 are all electrically connected to the A / D converter. The first cylinder 5, the second cylinder 9, the drive pump 15, the stirrer 18, the drive motor 8033 of the drive mechanism 803, the metering pump 29, and the solenoid valve 30 are all electrically connected to the D / A converter. Furthermore, an electric heater can be installed inside the mixing tank 11, and the electric heater is electrically connected to the D / A converter. An injection program is set in the control terminal to automatically adjust the ratio of oxygen, carbon source, and nitrogen source in the solution, as well as the temperature, to maintain microbial activity and reaction rate. The microbial nutrient solution is mixed with air and injected into the soil, allowing for multi-point diffusion and improving the uniformity of microbial distribution. During the reaction, the monitoring module acquires and reports real-time changes in soil temperature, pH, and oxygen content. The control terminal automatically adjusts the injection parameters based on the data, achieving closed-loop control. The remediation effect is ultimately assessed by monitoring changes in pollutant concentration. An embedded control system and data analysis software are used to evaluate microbial activity, regulate nutrient supply, visualize reaction curves, and predict remediation results.

[0072] A dynamic data system for the repair process is constructed through a multi-sensor node network and wireless communication.

[0073] The circuits and controls involved in this invention are all existing technologies and will not be described in detail here.

[0074] Furthermore, in the above scheme, walking wheel sets 32 are provided on both sides of the front end of the working platform 3, and follower wheel sets 33 are installed at the rear end of the working platform 3. In the working state, the bottom ends of the walking wheel sets 32 and follower wheel sets 33 are in contact with the ground. A mixing frame 34 is rotatably connected to the bottom of the inner cavity of the mixing box 11 through a sealed bearing, and the end of the mixing frame 34 extends out of the outer side of the protective frame 4. The rotating shaft located at the axis of the follower wheel set 33 is connected to the mixing frame 34 through a chain drive mechanism 35. A protective cover plate is provided outside the chain drive mechanism 35 to protect the chain drive mechanism 35 and improve the safety of the equipment during operation.

[0075] Furthermore, in the above scheme, both the first and second tilting mechanisms are driven by hydraulic cylinders in conjunction with a hydraulic system, and the tilting angle range of both mechanisms is set to 0-90°. Specifically, both the first and second tilting mechanisms utilize existing technology, and can be referenced from the tilting mechanisms of bulldozers, rotary tillers, or harvesters. With this configuration, during operation, the bucket 2 and working platform 3 are lowered (i.e., the bucket 2 and working platform 3 are at 0° to the ground); when not in operation, the bucket 2 and working platform 3 are raised (i.e., the bucket 2 and working platform 3 are at 90° to the ground) to facilitate the movement of the towing vehicle 1.

[0076] In use, the present invention fills the mixing tank 11 with a modifier for preparing a nutrient solution containing microorganisms. Specifically, raw materials such as microbial solution, nutrient solution (or buffer solution) and oxygen are added to the mixing tank 11 through the first storage chamber 12, the second storage chamber 13 and the oxygen supply chamber 14. The mixture is stirred evenly by the stirrer 18. The amount of microbial solution, nutrient solution (or buffer solution) and oxygen added is controlled by the intelligent monitoring reaction system, and auxiliary oxygen supply is provided during operation to maintain the long-term activity of microorganisms.

[0077] During operation, the bucket 2 and working platform 3 are lowered, and the tractor unit 1 is started to move along a predetermined trajectory. During this movement, the drilling assembly 8 and grouting assembly 17 work together to inject the soil conditioner into soil at different depths. Simultaneously, monitoring rods 23 are driven into the ground to detect data such as temperature, humidity, pH value, oxygen content, redox potential, conductivity, and nutrient content. The monitoring module provides real-time feedback on changes in soil temperature, pH value, and oxygen content, and the control terminal automatically adjusts the injection parameters based on the data, achieving closed-loop control. Finally, the remediation effect is assessed by monitoring changes in pollutant concentration.

[0078] The engagement process between the drilling assembly 8 and the grouting assembly 17 is as follows:

[0079] Taking the drive mechanism provided in Embodiment 3 as an example, multiple sets of drilling components 8 are installed on the mounting frame 7, and matching grouting components 17 or monitoring rods 23 are installed. The spacing of the multiple sets of drilling components 8 is adjusted. The drive motor 8033 of the drive mechanism drives the active sprocket 8034. Under the cooperation of the chain drive method combining the active sprocket 8034, driven sprocket 8035, annular sprocket 8036, chain 8037 and pressure roller 8038, multiple annular sprockets 8036 drive multiple spiral drill barrels 801 to rotate in the same direction. In conjunction with the output end of the first cylinder 5 pushing down the crossbeam 6, multiple spiral drill barrels 801 simultaneously drill multiple holes on the ground. At this time, the grouting pipe 171 and the monitoring rod 23 move down synchronously with the auger barrel 801 and enter the bottom of the hole. After drilling is completed (the drilling depth is set according to actual needs), the output end of the first cylinder 5 is retracted, and the output end of the second cylinder 9 is also retracted (initially in the extended state). The retraction speeds of the output ends of the first cylinder 5 and the second cylinder 9 are equal, so that when the auger barrel 801 moves upward, the positions of the grouting pipe 171 and the monitoring rod 23 remain unchanged. After the outer walls of the grouting pipe 171 and the monitoring rod 23 are exposed in the receiving channel, it is possible to inject the modifier at different depths and acquire monitoring data. After injection is completed, the output end of the second cylinder 9 is extended to pull the grouting pipe 171 and the monitoring rod 23 out of the hole and back into the receiving channel. At this time, the tractor body 1 can continue to move to change the operating position.

[0080] This equipment uses multiple sets of drilling components 8 and grouting components 17 to operate simultaneously, achieving multi-point diffusion of the modifier, improving the uniformity of microbial distribution, and increasing operational efficiency.

[0081] The above are merely specific embodiments of the present invention, but the structural features of the present invention are not limited thereto. Any changes or modifications made by those skilled in the art within the scope of the present invention are covered by the patent scope of the present invention.

Claims

1. An integrated injection-reaction-monitoring device for microbial remediation of contaminated soil, characterized in that: include: The tractor body (1) is used to drive the equipment. The front end of the tractor body (1) is equipped with a bucket (2) through a first tilting mechanism. The rear end of the tractor body (1) is equipped with a working platform (3) through a second tilting mechanism. The top outer side of the working platform (3) is fixedly connected with a protective frame (4). The inner walls of the protective frames (4) on both sides are fixedly connected with a first cylinder (5). The output end of the first cylinder (5) is connected to a crossbeam (6). Multiple mounting brackets (7) are fixedly connected between the crossbeams (6) on both sides. The down-drilling assembly (8) is detachably mounted on the mounting frame (7), and the number of down-drilling assemblies (8) is set to multiple. The down-drilling assembly (8) includes a spiral drill barrel (801), a positioning block (802) and a drive mechanism (803). The spiral drill barrel (801) passes through the positioning block (802) and is rotated by bearings. Suspension plates (804) are fixedly connected on both sides of the positioning block (802). The suspension plates (804) are snapped into the positioning block (802) and locked by screws. A storage channel is provided at the axis of the spiral drill barrel (801). The drive mechanism (803) drives the spiral drill barrel (801) to rotate. The grouting assembly (17) includes a grouting pipe (171), a sealing sleeve (172), and a plug (173). The sealing sleeve (172) is detachably installed on the top of the grouting pipe (171) via a sealing bearing. The plug (173) is fixedly connected to the bottom of the grouting pipe (171). Multiple nozzles (174) are distributed in a ring around the outside of the grouting pipe (171), and the nozzles (174) communicate with the inside of the grouting pipe (171). Multiple layers of sealing gaskets (175) are fixedly connected to the outer wall of the grouting pipe (171). The top of the crossbeam (6) is equipped with a second cylinder (9), and a pressure plate (10) is connected between the output ends of the two second cylinders (9) at the two ends of the mounting bracket (7). A mixing box (11) is fixedly connected to the top of the inner side of the protective frame (4). The top plate of the mixing box (11) is equipped with a first storage chamber (12), a second storage chamber (13) and an oxygen supply chamber (14) that communicate with the inner cavity of the mixing box (11). A drive pump (15) is fixedly connected to the outer side of the mixing box (11), and the input end of the drive pump (15) communicates with the inner cavity of the mixing box (11). The output end of the drive pump (15) is connected to the grouting assembly (17) through a high-pressure hose (16). An agitator (18) is installed inside the mixing box (11).

2. The integrated injection-reaction-monitoring device for microbial remediation of contaminated soil according to claim 1, characterized in that: A sliding rod (19) is provided between the two crossbeams (6) and is distributed parallel to the mounting bracket (7). A hoop plate (20) is connected to the suspension plate (804) by screws, and the hoop plate (20) and the sliding rod (19) are in sliding fit. A sliding sleeve (21) is slidably fitted on the outside of the sliding rod (19), and an upper baffle (22) is fixedly connected to the outer wall of the sliding sleeve (21). A card hole is passed through the surface of the upper baffle (22) and is slidably fitted with the guide vertical plate (177). The guide vertical plate (177) is embedded in the gap between the two suspension plates (804).

3. The integrated injection-reaction-monitoring device for microbial remediation of contaminated soil according to claim 1, characterized in that: It also includes a monitoring module, which includes at least one monitoring rod (23). The size of the monitoring rod (23) is the same as that of the grouting pipe (171), and the matching method between the monitoring rod (23) and the drilling assembly (8) is the same as that between the grouting pipe (171) and the drilling assembly (8). Temperature sensor (24), humidity sensor (25), pH sensor (26), oxygen content sensor (27) and pollutant concentration sensor (28) are embedded on the outer wall of the monitoring rod (23). When the monitoring rod (23) is inserted into the sensing nodes at different depths in the soil, the temperature, humidity, pH value, oxygen content and pollutant concentration data of the soil are collected in real time. The sensor components of the monitoring module are wirelessly connected to the control terminal of the tractor body (1).

4. The integrated injection-reaction-monitoring device for microbial remediation of contaminated soil according to claim 3, characterized in that: The number of the spiral drill barrels (801) is equal to the sum of the number of grouting pipes (171) and monitoring rods (23); The inner wall of the spiral drill barrel (801) is stepped, with the inner diameter at the bottom of the receiving channel being larger than the inner diameter at the top of the receiving channel; a plug (173) is also installed at the bottom of the monitoring rod (23), and the sealing isolation pad (175) at the bottom is attached to the upper surface of the plug (173); the diameter of the plug (173) is equal to the inner diameter at the bottom of the receiving channel, and the outer diameter of the sealing isolation pad (175) is equal to the inner diameter at the top of the receiving channel.

5. The integrated injection-reaction-monitoring device for microbial remediation of contaminated soil according to claim 1, characterized in that: The drive mechanism (803) includes a worm wheel (8031), a worm (8032), and a drive motor (8033). The worm wheel (8031) is coaxially sleeved on the outer top of the spiral drill barrel (801). The worm (8032) is rotatably connected to one side of the two suspension plates (804). The drive motor (8033) is fixed to the outer wall of one of the two suspension plates (804), and the output shaft of the drive motor (8033) is connected to the worm (8032) to drive the worm wheel (8031) to rotate.

6. The integrated injection-reaction-monitoring device for microbial remediation of contaminated soil according to claim 1, characterized in that: The drive mechanism (803) includes a drive sprocket (8034), a driven sprocket (8035), an annular sprocket (8036), and a chain (8037). The annular sprocket (8036) is coaxially sleeved on the outer top of the auger barrel (801). The annular sprockets (8036) of multiple auger barrels (801) located on the same mounting bracket (7) are driven by a drive motor (8033) and a chain (8037). The drive sprocket (8034) and the driven sprocket (8035) rotate respectively. The active mounting is located on the two outermost suspension plates (804) of the same mounting bracket (7), and the active sprocket (8034) is driven by the drive motor (8033). The chain (8037) is sleeved on the outside of the active sprocket (8034), the driven sprocket (8035) and multiple ring sprockets (8036). The positioning block (802) is rotatably connected to pressure rollers (8038) on both sides. The pressure rollers (8038) and the ring sprockets (8036) respectively contact the inner and outer sides of the chain (8037).

7. The integrated injection-reaction-monitoring device for microbial remediation of contaminated soil according to claim 3, characterized in that: A metering pump (29) is installed on the delivery pipeline between the first storage chamber (12) and the second storage chamber (13) and the inner cavity of the mixing tank (11), and a solenoid valve (30) is installed on the delivery pipeline between the oxygen supply chamber (14) and the inner cavity of the mixing tank (11).

8. The integrated injection-reaction-monitoring device for microbial remediation of contaminated soil according to claim 7, characterized in that: The control terminal is equipped with a microcontroller (31). An A / D converter and a D / A converter are electrically connected to the input and output terminals of the microcontroller (31), respectively. Temperature sensor (24), humidity sensor (25), pH sensor (26), oxygen content sensor (27) and pollutant concentration sensor (28) are all electrically connected to the A / D converter. The first cylinder (5), the second cylinder (9), the drive pump (15), the stirrer (18), the drive motor (8033) of the drive mechanism (803), the metering pump (29) and the solenoid valve (30) are all electrically connected to the D / A converter.

9. The integrated injection-reaction-monitoring device for microbial remediation of contaminated soil according to claim 1, characterized in that: The working platform (3) is equipped with walking wheel sets (32) on both sides of the front end, and a follower wheel set (33) is installed at the rear end of the working platform (3). In the working state, the bottom ends of the walking wheel set (32) and the follower wheel set (33) are in contact with the ground. A stirring frame (34) is rotatably connected to the bottom of the mixing box (11) through a sealed bearing. The end of the stirring frame (34) extends out of the outer side of the protective frame (4). The rotating shaft located at the center of the follower wheel set (33) is connected to the stirring frame (34) through a chain drive mechanism (35).

10. The integrated injection-reaction-monitoring device for microbial remediation of contaminated soil according to claim 1, characterized in that: Both the first and second flipping mechanisms are driven by hydraulic cylinders in conjunction with a hydraulic system, and the flipping angle range of both the first and second flipping mechanisms is set to 0-90°.

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