In-situ spraying equipment for soil remediation
By designing a soil remediation device that incorporates walking spraying, colloidal material activation, and automatic control, the problems of poor efficacy and insufficient supply of liquid remediation agents have been solved, achieving efficient soil remediation and economical use of liquid remediation agents, while reducing disturbance to soil carbon sequestration.
Patent Information
- Application Number
- CN202520247045.2
- Authority / Receiving Office
- CN · China
- Patent Type
- Utility models(China)
- Current Assignee / Owner
- Filing Date
- 2025-02-17
- Publication Date
- 2026-02-03
- Estimated Expiration
- 2035-02-17
AI Technical Summary
In existing in-situ soil leaching remediation processes, liquid remediation agents have poor efficacy and insufficient supply, failing to meet usage needs. Furthermore, the long-term storage of solid powders in liquid agents can easily alter their physicochemical properties, affecting the effectiveness of the application.
Design an in-situ spraying device for soil remediation, comprising a mobile spraying component, a colloidal material activation component, and an automatic control component. The device uses an automatic control program to control the activation and spraying of colloidal materials, enabling instant mixing and spraying of solid powder and liquid remediation agent, thereby reducing the amount of liquid remediation agent used.
It achieves efficient remediation of heavy metal contaminated sites, reduces waste of liquid remediation agents, meets remediation needs, and minimizes disturbance to soil carbon sequestration.
Smart Images
Figure CN223862538U_ABST
Abstract
Description
Technical Field
[0001] This utility model relates to the field of soil remediation technology, and in particular to an in-situ spraying device for soil remediation. Background Technology
[0002] In existing in-situ soil leaching remediation methods, it is often necessary to prepare a solution by mixing solid powders and liquid formulations, and then spray it directly.
[0003] However, due to the large volume of spray required for deep soil penetration, existing technologies necessitate the preparation of large quantities of the liquid remediation agent before spraying. In this case, the solid powder, stored in the liquid agent for an extended period, is prone to altering its physicochemical properties, thus affecting its effectiveness and leading to volatilization and waste. Conversely, while the solid powder and activator can be prepared and used immediately, the large-scale supply of prepared liquid remediation agents cannot meet the demands of in-situ soil leaching remediation processes. Utility Model Content
[0004] The main purpose of this utility model is to provide an in-situ spraying device for soil remediation, which aims to solve the problems of poor efficacy and insufficient supply of liquid remediation agents in the existing soil in-situ leaching remediation process, which cannot meet the needs of use.
[0005] To achieve the above objectives, this utility model provides an in-situ spraying device for soil remediation, which includes a walking spraying component, a colloidal material activation component, and an automatic control component; wherein the colloidal material activation component is assembled inside the walking spraying component.
[0006] The walking sprinkler assembly includes a support frame, a sprinkler device, and a drive device; the sprinkler device is provided on the front side of the support frame for sprinkler operation; the drive device is provided on the lower side of the support frame; the drive device includes two front drive wheels, two rear steering wheels, and a power unit, the two front drive wheels and the two rear steering wheels are driven by the power unit, and the power unit is located on the bottom surface of the support frame.
[0007] The colloidal material activation component includes a mixing tank, a colloidal powder reagent tank, an active liquid activation tank, a drug pump, a drug delivery pump, a liquid level sensor, a stirring paddle, and a stirring motor, all assembled inside the support frame.
[0008] The bottom of the mixing tank is provided with a drug delivery port and a drug administration port. The bottom of the colloidal powder drug container and the bottom of the active liquid activation container are provided with a first drug delivery port and a second drug delivery port, respectively. The solid powder in the colloidal powder drug container is pumped into the mixing tank through the drug delivery port from the first drug delivery port and the activator in the active liquid activation container is pumped into the mixing tank through the drug delivery port from the drug delivery port. The liquid repair agent in the mixing tank is pumped into the spraying device through the drug administration port by the drug delivery pump.
[0009] The bottom of the mixing tank is equipped with a liquid level sensor to send a liquid level signal to the automatic control component; the stirring paddle is installed inside the mixing tank to mix the solid powder and the activator entering the mixing tank, and is electrically connected to the stirring motor; the stirring motor is located at the top of the mixing tank.
[0010] The automatic control component is located on the rear side of the support frame; and the automatic control component is electrically connected to the spraying device, the power device, the liquid level sensor and the stirring motor respectively.
[0011] Preferably, the spraying device includes a telescopic shaft, a spray pipe, a drug delivery pipe, and nozzles; both ends of the telescopic shaft are rotatably connected to the upper front side of the support frame and the middle of the spray pipe, respectively; and the telescopic shaft is electrically connected to the automatic control component; the spray pipe has an inlet hole and multiple evenly arranged spray holes; one end of the drug delivery pipe communicates with the inlet hole, and the other end of the drug delivery pipe communicates with the drug delivery hole; the nozzle is disposed at the spray hole; and the nozzle is movably connected to the spray pipe.
[0012] Preferably, the spray pipe is a single-row, three-section spray pipe, with each section rotatably connected to the other.
[0013] Preferably, the spray assembly further includes a parallel support rod and two rotating support rods; the parallel support rod is a single-row, three-section support rod, with each section rotatably connected; the parallel support rod is fixedly connected to the spray pipe; and the first, second, and third sections of the parallel support rod are respectively parallel to the first, second, and third sections of the single-row, three-section spray pipe; one end of each of the two rotating support rods is rotatably connected to the front side of the support frame; the other end of each of the two rotating support rods is fixedly connected to the first and third sections of the parallel support rod, respectively.
[0014] Preferably, the nozzle is a conical nozzle.
[0015] Preferably, both the colloidal powder reagent container and the active liquid activation container are equipped with a stirrer.
[0016] Preferably, the stirring paddle includes multiple blades and a telescopic rod; the telescopic rod includes a telescopic end and a stirring end; the telescopic end of the telescopic rod is fixedly connected to the stirring motor; the multiple blades are arranged in layers, and each layer of blades is equidistantly connected to the stirring end along the longitudinal direction of the telescopic rod; the blades of adjacent layers of blades are staggered.
[0017] Preferably, the blade lengths of the plurality of blades decrease sequentially along the direction away from the telescopic end.
[0018] Preferably, all of the multiple blades are single-layer porous structures.
[0019] Preferably, the blade that is furthest from the telescopic end among the plurality of blades is a detachable agitator.
[0020] The beneficial effects achieved by this utility model are:
[0021] This invention relates to an in-situ spraying device for soil remediation, comprising three main components: a mobile spraying system, a colloidal material activation system, and an automatic control system. Powered by electricity, the device simultaneously controls the mobile spraying and colloidal material activation components through an automatic control program. This adapts to the complex terrain requirements of contaminated sites, enabling simultaneous activation and spraying of colloidal materials, effectively reducing disturbance to soil carbon sinks. This in-situ spraying device addresses the significant differences in contamination levels between the surface and deep layers of heavy metal contaminated sites, forming a surface spraying-deep injection in-situ remediation technology based on these differences. This achieves heavy metal capture, phase transformation, and long-term stabilization.
[0022] With the cooperation of three major components—mobile spraying, colloidal material activation, and automatic control—in the in-situ spraying equipment used for soil remediation, the amount of liquid remediation agent used can be controlled while achieving the remediation effect, effectively saving liquid remediation agent. Attached Figure Description
[0023] To more clearly illustrate the technical solutions in the embodiments of this utility model or the prior art, the drawings used in the description of the embodiments or the prior art will be briefly introduced below. Obviously, the drawings described below are only some embodiments of this utility model. For those skilled in the art, other drawings can be obtained based on the structures shown in these drawings without creative effort.
[0024] Figure 1 This is a three-dimensional structural diagram of an in-situ spraying device for soil remediation, which is an optional embodiment of the present invention.
[0025] Figure 2 The right view is a schematic diagram of the structure of an in-situ spraying device for soil remediation according to an optional embodiment of this utility model.
[0026] Figure 3 This is a schematic diagram of the mixing paddle of an in-situ spraying device for soil remediation, which is an optional embodiment of this utility model.
[0027] The realization of the purpose, functional features and advantages of this utility model will be further explained in conjunction with the implementation methods and with reference to the accompanying drawings. Detailed Implementation
[0028] To more clearly illustrate the purpose, technical solution, and advantages of this utility model, the following will provide a more detailed description of the embodiments in conjunction with the accompanying drawings. It should be understood that the specific embodiments described herein are for illustrative purposes only and are not intended to limit the scope of this utility model.
[0029] It should be noted that all directional indicators (such as up, down, etc.) in the embodiments of this utility model are only used to explain the relative positional relationship and movement of each component in a certain specific posture (as shown in the figure). If the specific posture changes, the directional indicator will also change accordingly.
[0030] Furthermore, in this utility model, descriptions involving "first," "second," etc., are for descriptive purposes only and should not be construed as indicating or implying their relative importance or implicitly specifying the number of technical features indicated. Therefore, a feature defined with "first" or "second" may explicitly or implicitly include at least one of those features.
[0031] Furthermore, the technical solutions of the various embodiments of this utility model can be combined with each other, but only if they are based on the ability of a person skilled in the art to implement them. When the combination of technical solutions is contradictory or cannot be implemented, it should be considered that such combination of technical solutions does not exist and is not within the scope of protection claimed by this utility model.
[0032] Reference Figures 1-3 In order to solve the problems of poor efficacy and insufficient supply of liquid remediation agents in the existing soil in-situ leaching remediation process, which cannot meet the needs of use, this utility model provides an in-situ spraying device for soil remediation. The in-situ spraying device for soil remediation includes a walking spraying component, a colloidal material activation component and an automatic control component 17; wherein, the colloidal material activation component is assembled inside the walking spraying component.
[0033] The mobile sprinkler assembly includes a support frame 1, a sprinkler device, and a drive device; the sprinkler device is installed on the front side of the support frame 1 for sprinkler operation; the drive device is installed on the lower side of the support frame 1; the drive device includes two front drive wheels 2, two rear steering wheels 3, and a power unit, the two front drive wheels 2 and the two rear steering wheels 3 are driven by the power unit, which is located on the bottom surface of the support frame 1.
[0034] The colloidal material activation assembly includes a mixing tank 4, a colloidal powder reagent tank 5, an active liquid activation tank 6, a drug pump 7, a drug delivery pump 8, a liquid level sensor, a stirring paddle 18, and a stirring motor 9, all housed within the support frame 1.
[0035] The bottom of the mixing tank 4 is provided with a drug delivery port and a drug administration port. The bottom of the colloidal powder drug container 5 and the bottom of the active liquid activation container 6 are provided with a first drug delivery port and a second drug delivery port, respectively. The solid powder in the colloidal powder drug container 5 is pumped into the mixing tank 4 through the drug delivery port by the drug pump 7, and the activator in the active liquid activation container 6 is pumped into the mixing tank 4 through the drug delivery port by the drug pump 8. The liquid repair agent in the mixing tank 4 is pumped to the spraying device through the drug administration port by the drug delivery pump 8.
[0036] A liquid level sensor is installed at the bottom of the mixing tank 4 to send a liquid level signal to the automatic control component 17; an agitator 18 is installed inside the mixing tank 4 to mix the solid powder and activator entering the mixing tank 4, and is electrically connected to the stirring motor 9; the stirring motor 9 is located at the top of the mixing tank 4.
[0037] The automatic control component 17 is located on the rear side of the support frame 1; and the automatic control component 17 is electrically connected to the spraying device, the power device, the liquid level sensor and the stirring motor 9 respectively.
[0038] Specifically, refer to Figure 1 and Figure 2 In an optional embodiment, the in-situ spraying equipment for soil remediation has external dimensions of 4500×2750×3100mm and mainly consists of three major components: mobile spraying, colloidal material activation, and automatic control. Driven by electricity, the colloidal powder agent tank 5 and the active liquid activation tank 6 in the colloidal material activation component are pumped into the mixing tank 4 by the chemical pump 7 according to the program set by the automatic control component 17 for the soil to be remediated (preliminary investigation of the basic database of the contaminated site to obtain information such as the available content of chromium, lead, cadmium, and arsenic in the target contaminated site and the physical and chemical properties of the soil; analysis of the aforementioned data, adding the specific required agents to the colloidal powder agent tank 5 and the active liquid activation tank 6 respectively, and recording the dosage of each agent and the site location and area information of the soil to be remediated in the program). When the liquid level sensor at the bottom of the mixing tank 4 reaches the programmed requirement, it immediately sends a liquid level signal to the automatic control component 17. Based on the received signal, the automatic control component 17 controls the stirring paddle 18 to perform the mixing operation of the solid powder and activator that have entered the mixing tank 4. At the same time, the automatic control component 17 synchronously pumps the liquid repair agent in the mixing tank 4 to the spraying device through the drug delivery port by the drug delivery pump 8 according to the pre-set program, and controls the drive device to move within the specified area to complete the intelligent spraying operation, so as to achieve simultaneous activation and spraying.
[0039] This invention relates to an in-situ spraying device for soil remediation, comprising three main components: a mobile spraying system, a colloidal material activation system, and an automatic control system. Powered by electricity, the device simultaneously controls the mobile spraying and colloidal material activation components through an automatic control program. This adapts to the complex terrain requirements of contaminated sites, enabling simultaneous activation and spraying of colloidal materials, effectively reducing disturbance to soil carbon sinks. This in-situ spraying device addresses the significant differences in contamination levels between the surface and deep layers of heavy metal contaminated sites, forming a surface spraying-deep injection in-situ remediation technology based on these differences. This achieves heavy metal capture, phase transformation, and long-term stabilization.
[0040] With the cooperation of three major components—mobile spraying, colloidal material activation, and automatic control—in the in-situ spraying equipment used for soil remediation, the amount of liquid remediation agent used can be controlled while achieving the remediation effect, effectively saving liquid remediation agent.
[0041] Preferred, refer to Figure 1 and Figure 2 The spraying device includes a telescopic shaft 10, a spray pipe 11, a drug delivery pipe 12, and a nozzle 13. The two ends of the telescopic shaft 10 are rotatably connected to the upper front side of the support frame 1 and the middle part of the spray pipe 11, respectively. The telescopic shaft 10 is electrically connected to the automatic control component 17. The spray pipe 11 has an access hole and multiple evenly arranged spray holes. One end of the drug delivery pipe 12 is connected to the access hole, and the other end of the drug delivery pipe 12 is connected to the drug delivery hole. The nozzle 13 is located at the spray hole and is movably connected to the spray pipe 11.
[0042] Specifically, refer to Figure 1 and Figure 2 Based on site contamination survey data, the automatic control component 17 is manually operated to adjust the operating parameters of the spraying device (working length of the telescopic shaft 10, height of the spray pipe 11 above the ground, and working angle between the nozzle 13 and the spray pipe 11) to regulate the travel speed of the in-situ spraying equipment for soil remediation at the current site and the amount of liquid remediation agent sprayed. This enables in-situ remediation and precise application of materials at the remediation site. In an optional embodiment, the spray pipe 11 is 8m long and has 22 nozzles 13, with the operating parameters adjusted to a spray width of 10m. In an optional embodiment, the telescopic shaft 10 can be retracted to save space.
[0043] In an alternative embodiment, refer to Figure 2 The delivery pipe 12 is also equipped with a flow meter 16 and a control valve (not shown in the figure). The flow meter 16 displays the flow rate. The control valve (which has an opening and closing blade part installed inside to control the flow of liquid repair agent within a certain flow range) can help adjust the agent ratio and limit the hydraulic pressure inside the delivery pipe 12. The auxiliary inlet hole can also participate in depressurization to assist in precise spraying operation and promote the activation reaction.
[0044] Preferably, the spray pipe 11 is a single-row three-section spray pipe, with each section rotatably connected to the other.
[0045] Preferably, the spray assembly further includes a parallel support rod 14 and two rotating support rods 15; the parallel support rod 14 is a single-row, three-section support rod, with each section rotatably connected; the parallel support rod 14 is fixedly connected to the spray pipe 11; and the first, second, and third sections of the parallel support rod 14 are respectively parallel to the first, second, and third sections of the spray pipe 11 of the single-row, three-section spray pipe; one end of each of the two rotating support rods 15 is rotatably connected to the front side of the support frame 1; the other ends of the two rotating support rods 15 are respectively fixedly connected to the first and third sections of the parallel support rod 14.
[0046] Specifically, refer to Figure 1 Each segment of the parallel support rod 14 is connected by a universal rotating shaft. The positional relationship between the first segment, the second segment, and the third segment of the spray pipe 11 can be changed by rotating the two rotating support rods 15. For example, the outer ends of the first segment and the third segment of the spray pipe 11 can be folded upwards.
[0047] Preferably, nozzle 13 is a conical nozzle.
[0048] Preferably, both the colloidal powder container 5 and the active liquid activation container 6 are equipped with stirrers. Specifically, the stirrers installed in the colloidal powder container 5 and the active liquid activation container 6 can maintain the uniformity of the initial reagents to be mixed, which helps to accurately add the dosage of both into the mixing tank 4 and maintain the high activity of the prepared liquid repair agent.
[0049] Preferred, refer to Figure 2 and Figure 3 The stirring paddle 18 includes multiple blades 19 and a telescopic rod 20; the telescopic rod 20 includes a telescopic end 21 and a stirring end 22; the telescopic end 21 of the telescopic rod 20 is fixedly connected to the stirring motor 9; the multiple blades 19 are arranged in layers, and each layer of blades 19 is equidistantly connected to the stirring end 22 along the longitudinal direction of the telescopic rod 20; the blades 19 of adjacent layers are staggered. Specifically, refer to... Figure 1 and Figure 3 Upon receiving the stirring signal, the stirring motor 9 operates, driving the stirring paddle 18 and the telescopic rod 20 to extend to the set height, and the blades 19 open to begin rotating, uniformly mixing the solid powder and activator added in the mixing chamber 4.
[0050] Preferably, the blade lengths of the plurality of blades 19 decrease sequentially along the direction away from the telescoping end 21. Specifically, refer to... Figure 3When the blade length of blade 19 decreases sequentially along the direction away from telescopic end 21, the structure can form vortices when the stirring paddle 18 is in working state, which helps the activator to be added to the mixture quickly; and generates shear effect and convection effect, accelerating the mixing of solid powder and activator; and causes violent mixing in the axial and radial directions, further improving the activity and uniformity of liquid repair agent.
[0051] Preferably, all blades 19 have a single-layer porous structure. Specifically, this facilitates rapid liquid flow in the mixing tank 4, achieving thorough mixing.
[0052] Preferably, the blade 19 furthest from the telescopic end 21 among the multiple blades 19 is a detachable agitator. Specifically, installing a detachable agitator can further increase the agitation of the liquid repair agent.
[0053] In summary, the above-described technical solutions of this utility model are merely preferred embodiments of this utility model and do not limit the patent scope of this utility model. Any equivalent structural transformations made based on the technical concept of this utility model and the contents of the specification and drawings of this utility model, or direct / indirect applications in other related technical fields, are included within the patent protection scope of this utility model.
Claims
1. An in-situ spraying device for soil remediation, characterized in that, The in-situ spraying equipment for soil remediation includes a mobile spraying component, a colloidal material activation component, and an automatic control component; wherein, the colloidal material activation component is assembled inside the mobile spraying component; The walking sprinkler assembly includes a support frame, a sprinkler device, and a drive device; the sprinkler device is provided on the front side of the support frame for sprinkler operation; the drive device is provided on the lower side of the support frame; the drive device includes two front drive wheels, two rear steering wheels, and a power device, the two front drive wheels and the two rear steering wheels are driven by the power device, and the power device is provided on the bottom surface of the support frame. The colloidal material activation component includes a mixing tank, a colloidal powder reagent tank, an active liquid activation tank, a drug pump, a drug delivery pump, a liquid level sensor, a stirring paddle, and a stirring motor, all assembled inside the support frame. The bottom of the mixing tank is provided with a drug delivery port and a drug administration port, and the bottom of the colloidal powder drug container and the bottom of the active liquid activation container are provided with a first drug delivery port and a second drug delivery port, respectively. The solid powder in the colloidal powder drug container is pumped into the mixing tank through the drug delivery port from the first drug delivery port and the activator in the active liquid activation container is pumped into the mixing tank through the drug delivery port by the drug pump. The liquid repair agent in the mixing tank is pumped into the spraying device through the drug administration port by the drug delivery pump. The bottom of the mixing tank is equipped with a liquid level sensor to send a liquid level signal to the automatic control component; the stirring paddle is installed inside the mixing tank to mix the solid powder and the activator entering the mixing tank, and is electrically connected to the stirring motor; the stirring motor is located at the top of the mixing tank. The automatic control component is located on the rear side of the support frame; and the automatic control component is electrically connected to the spraying device, the power device, the liquid level sensor and the stirring motor respectively.
2. The in-situ spraying equipment for soil remediation according to claim 1, characterized in that, The spraying device includes a telescopic shaft, a spray pipe, a drug delivery pipe, and nozzles; The two ends of the telescopic shaft are respectively rotatably connected to the upper front side of the support frame and the middle part of the spray pipe; and the telescopic shaft is electrically connected to the automatic control component. The spray pipe has an inlet hole and multiple evenly arranged spray holes. One end of the drug delivery tube is connected to the access hole, and the other end of the drug delivery tube is connected to the drug administration hole; The nozzle is located at the spray hole; and the nozzle is movably connected to the spray pipe.
3. The in-situ spraying equipment for soil remediation according to claim 2, characterized in that, The spray pipe is a single-row, three-section spray pipe, with each section rotatably connected to the others.
4. The in-situ spraying equipment for soil remediation according to claim 3, characterized in that, The spray assembly also includes a parallel support rod and two rotating support rods; The parallel support rod is a single-row, three-section support rod, with each section rotatably connected to the others; the parallel support rod is fixedly connected to the spray pipe; and the first section, the second section, and the third section of the parallel support rod are respectively parallel to the first section, the second section, and the third section of the spray pipe of the single-row, three-section spray pipe. One end of each of the two rotating support rods is rotatably connected to the front side of the support frame; the other end of each of the two rotating support rods is fixedly connected to the first section and the third section of the parallel support rod, respectively.
5. The in-situ spraying equipment for soil remediation according to claim 2, characterized in that, The nozzle is a conical nozzle.
6. The in-situ spraying equipment for soil remediation according to claim 1, characterized in that, Both the colloidal powder reagent container and the active liquid activation container are equipped with a stirrer.
7. The in-situ spraying equipment for soil remediation according to claim 1, characterized in that, The stirring paddle includes multiple blades and a telescopic rod; The telescopic rod includes a telescopic end and a stirring end; the telescopic end of the telescopic rod is fixedly connected to the stirring motor. The multiple blades are arranged in layers, and each layer of blades is equidistantly connected to the stirring end along the longitudinal direction of the telescopic rod. The blades of adjacent layers are arranged alternately.
8. The in-situ spraying equipment for soil remediation according to claim 7, characterized in that, The blade lengths of the plurality of blades decrease sequentially along the direction away from the telescopic end.
9. The in-situ spraying equipment for soil remediation according to claim 7, characterized in that, All of the blades are single-layer porous structures.
10. The in-situ spraying equipment for soil remediation according to claim 7, characterized in that, The blade furthest from the telescopic end among the plurality of blades is a detachable agitator.