A micro bubble soil remediation system
Through the micro bubble soil repair system, the contaminated soil is repaired by spraying high-pressure bubbles with hydraulic cylinders, which solves the problem of poor results in existing soil pollution control methods and achieves efficient and systematic pollutant removal and Short-term governance.
Patent Information
- Application Number
- CN201811519722.2
- Authority / Receiving Office
- CN · China
- Patent Type
- Patents(China)
- Current Assignee / Owner
- Filing Date
- 2018-12-12
- Publication Date
- 2024-12-31
- Estimated Expiration
- 2038-12-12
AI Technical Summary
The existing soil pollution control methods are cheap but have poor treatment effects, and pollutants are difficult to completely remove and take time, and there is a lack of efficient repair solutions.
A micro bubble soil repair system was designed, using rammed earth pipes and injection tubes combined with hydraulic cylinders to spray high-pressure bubbles through the jet hole to repair the contaminated soil. The water collection well collects the treated pollutants, and systematically does not destroy the soil structure.
It significantly improves the soil restoration effect, shortens the treatment cycle, is standardized in operation and outstanding in treatment effects, and pollutants can be effectively collected and removed.
Smart Images
Figure CN109530416B_ABST
Abstract
Description
Technical Field
[0001] The present invention relates to the technical field of soil pollution control, and in particular to a microbubble soil remediation system. Background Art
[0002] With the continuous development of modern industry, various environmental pollutions have followed, among which soil pollution is becoming increasingly serious. Since the existing soil pollution mostly adopts the low-cost gas phase extraction treatment method, although it has certain treatment effects, there will still be a lot of pollutants retained in the soil that cannot be eradicated, and it is more time-consuming. How to solve the existing technical problems and propose a new technical solution has become an urgent problem for relevant designers to solve. Summary of the invention
[0003] The object of the present invention is to provide a microbubble soil remediation system to solve the problems raised in the above background technology.
[0004] To achieve the above-mentioned purpose, the present invention provides the following technical solutions: a microbubble soil remediation system, comprising a rammed earth tube placed inside the soil, and an injection tube movably connected to the top of the rammed earth tube, the side wall of the injection tube is provided with an injection hole for injecting microbubbles, and the injection hole is arranged as a hole-shaped structure with a horizontal bottom and an upward angle at the top, and the periphery of the injection tube is provided with a water collection well for collecting pollutants treated with microbubbles.
[0005] A hydraulic cylinder is installed in the cavity of the rammed earth pipe to enable the injection pipe to perform telescopic movement along its vertical center axis.
[0006] The elevation angle of the top of the injection hole is set to 45° to 60°.
[0007] The injection holes are evenly distributed in one third of the area of the side wall of the injection tube.
[0008] A reaction chamber is provided in the injection tube.
[0009] The length of the rammed earth pipe after being connected to the injection pipe is less than the length of the water collection well.
[0010] The injection pipe is connected with a high-pressure air pump and a high-pressure water injection machine for generating microbubbles in the reaction chamber, and the high-pressure air pump and the high-pressure water injection machine are both placed on the ground.
[0011] The end of the rammed earth pipe is fixedly connected to a mounting platform, and a high-pressure air pump and a high-pressure water injection machine are respectively mounted on both sides of the mounting platform.
[0012] It can be seen from the above technical solution that the present invention uses microbubbles to repair contaminated soil. At the same time, the designed injection tube greatly improves the treatment effect of microbubbles. This soil remediation system can repair the original soil structure to the greatest extent without destroying it. The operation is more systematic and standardized, the treatment effect is outstanding, and the treatment cycle is shorter. BRIEF DESCRIPTION OF THE DRAWINGS
[0013] Figure 1 It is a schematic diagram of the structure of the present invention;
[0014] Figure 2 Schematic diagram for use in the present invention;
[0015] Figure 3 It is a cross-sectional view of the injection tube of the present invention;
[0016] Figure 4 A schematic diagram of the structure of the injection hole of the present invention;
[0017] Figure 5 Another schematic diagram of the structure of the injection hole of the present invention;
[0018] Figure 6 This is a cross-sectional view of the rammed earth pipe of the present invention.
[0019] In the figure: 1 high-pressure air pump, 2 installation platform, 3 high-pressure water injection machine, 4 ramming pipe, 5 injection pipe, 51 injection hole, 511 outer hole, 512 inner hole, 52 reaction chamber, 6 water collection well, 7 pumping pipe, 8 extraction equipment, 9 hydraulic cylinder. DETAILED DESCRIPTION
[0020] The present invention will be further described below in conjunction with the accompanying drawings:
[0021] like Figure 1-5 The microbubble soil remediation system shown in the figure includes a rammed earth tube 4 placed inside the soil, and an injection tube 5 movably connected to the top of the rammed earth tube 4. A hydraulic cylinder 9 is installed in the rammed earth tube 4 for the injection tube 5 to perform telescopic movement in its cavity. The output end of the hydraulic cylinder 9 is fixedly connected to the injection tube 5. When the hydraulic cylinder 9 performs telescopic movement, it drives the injection tube 5 to perform telescopic movement along the vertical center axis of the rammed earth tube 4. The surface of the injection tube 5 is provided with an injection hole 51 for injecting microbubbles, and the injection hole 51 is set as a hole-shaped structure with a horizontal bottom and an upward angle at the top. Figure 4As shown in Figure 5, one end opening of the injection hole 51 is set as an inner hole 512 connected to the reaction chamber 52, and the other end opening is set as an outer hole 511 opened on the surface of the injection tube 5. The outer hole 511 and the inner hole 512 can be set as an elliptical opening structure, a circular opening structure or a polygonal opening structure. The hole shape structure is not limited to a specific mouth shape, and only needs to meet the elevation angle of the top of the injection hole 51 is set to 30°, 31°, 32°, 33°, 34°, 35°, 36°, 37°, 38°, 39°, 40°, 41°, 42°, 43°, 44°, 45°, 46°, 47°, 48°, 49°, 50°, 51°, 52°, 53°, 54°, 55°, 56° , 57°, 58°, 59° or 60°, and the bottoms are arranged in parallel. In this embodiment, a circular opening structure is preferred. The circular opening structure maximizes the diffusion area of the microbubbles ejected from the reaction chamber 52, and the bottoms of the injection holes 51 are arranged in parallel so that the bottom of the microbubbles after injection can move forward in the horizontal direction without diffusing downward, which is beneficial to improving the effect of soil pollution control and the collection of the water collection well 6; the periphery of the injection tube 5 is provided with a collection hole for collecting pollutants after microbubble treatment. The soil between the water collection well 6 and the injection pipe 5 is the contaminated soil to be treated; the water collection well 6 is provided with a pumping pipe 7 leading to the bottom thereof, and an extraction device 8 for extracting sewage in the water collection well 6 is installed at the other end of the pumping pipe 7. When the location of the pollution source soil is determined, the water collection well 6 is first arranged at the center of the pollution source soil, and then a plurality of rammed earth pipes 4 are arranged in sequence with the water collection well 6 as the center of the circle. In the specific construction process, the soil can be drilled first, and the diameter of the drilled hole is 2 cm smaller than the diameter of the rammed earth pipe 4, and then the rammed earth is The tube 4 is placed in the drilled hole, and pressure is applied on the rammed earth tube 4 to stabilize it. When the rammed earth tube 4 enters the soil layer and stabilizes, the hydraulic cylinder 9 arranged in the rammed earth tube 4 is started, and the injection tube 5 arranged in the rammed earth tube 4 is pushed into the soil layer to be repaired. Before the rammed earth tube 4 enters the soil layer, it is necessary to ensure that the injection hole 51 opened on the injection tube 5 is set in the direction of the water collection well 6. In this way, it can be ensured that when the rammed earth tube 4 enters the soil layer, the microbubbles ejected by the injection tube 5 pushed out by the hydraulic cylinder 9 are sprayed in the direction of the water collection well 6.
[0022] Furthermore, the injection holes 51 are evenly arranged in an area of one-third of the side wall of the injection tube 5, and the area is set as a vertical area arranged along the length direction of the injection tube 5. This type of injection tube 5 uses a method of opening injection holes 51 in a local area for injection, which is conducive to forming a sufficiently large pressure inside the reaction chamber 52, and can effectively enable the microbubbles to have sufficient injection force after being ejected from 51, thereby achieving the best repair effect.
[0023] Furthermore, the length of the rammed earth pipe 4 after being connected to the injection pipe 5 is shorter than the length of the water collection well 6. When this requirement is met, the deepest part of the water collection well 6 will be deeper than the deepest part of the injection pipe 5. When the injection pipe 5 sprays out the microbubbles at the bottom and moves forward in the horizontal direction, all the treated waste will be collected in the water collection well 6.
[0024] Furthermore, a reaction chamber 52 is provided in the injection tube 5 for mixing the gas and liquid injected into the reaction chamber 52 .
[0025] Furthermore, the injection tube 5 is connected to a high-pressure air pump 1 and a high-pressure water injector 3 for generating microbubbles in the reaction chamber 52 , and microbubbles for treating contaminated soil can be generated by injecting high-pressure gas and high-pressure water into the reaction chamber 52 .
[0026] The working principle of the present invention is as follows:
[0027] The microbubble soil remediation system injects high-pressure gas and high-pressure liquid into the injection tube 5 respectively through the high-pressure air pump 1 and the high-pressure water injection machine 3, so that microbubbles are generated in the reaction chamber 52, and the microbubbles are diffused to the outside through the set injection holes 51. When the microbubbles are constantly moving forward and moving, the contaminated soil is fractured and infiltrated. Traditional pneumatic fracturing uses air to blast soil and sediments, and injects high-pressure gas into dense contaminated soil or sediment species to expand and increase cracks, etc., to enhance its permeability. Hydraulic fracturing uses high-pressure water injection into the bottom of the injection well as the starting point of fracturing. Microbubbles use high-pressure air and high-pressure water to combine to generate microbubbles. Under the action of the explosive force generated by the microbubbles when they pass through the soil, the contaminated soil is effectively treated. When the microbubbles are ejected from the injection holes 5 1 After being ejected, it will continue to move forward at a certain elevation angle in the horizontal direction and penetrate into the water collection well 6. The pumping pipe 7 set in the water collection well 6 will discharge the polluted water inside through the extraction equipment 8 to achieve the final treatment effect; this kind of microbubble soil remediation system can be equipped with multiple injection tubes 5 during actual use. Through the determined contaminated soil area, it is inserted into the peripheral soil of the contaminated soil area. At the same time, the water collection well 6 is opened at the center of the contaminated soil area, and the injection holes 51 on the injection tube 5 are all aligned with the water collection well 6. The microbubbles blast and clean the contaminated soil through diffusion, and finally collect the sewage into the water collection well 6. When the water permeability reaches 2 meters, the sewage inside can be pumped out through the extraction equipment 8. This kind of extraction equipment 8 can be realized by a traditional water pump.
[0028] The embodiments described above are merely descriptions of preferred implementation modes of the present invention and are not intended to limit the scope of the present invention. Without departing from the design spirit of the present invention, various modifications and improvements made to the technical solutions of the present invention by ordinary technicians in this field should all fall within the protection scope determined by the claims of the present invention.
Claims
1. A microbubble soil remediation system, characterized by: It comprises a rammed earth tube (4) placed inside the soil, and an injection tube (5) movably connected to the top of the rammed earth tube (4), the side wall of the injection tube (5) is provided with an injection hole (51) for injecting microbubbles, and the injection hole (51) is arranged as a hole-shaped structure with a horizontal bottom and an upward angle at the top, and the periphery of the injection tube (5) is provided with a water collection well (6) for collecting pollutants treated with microbubbles; A hydraulic cylinder (9) is installed in the cavity of the rammed earth pipe (4) for causing the injection pipe (5) to perform telescopic movement along its vertical center axis; The injection holes (51) are evenly arranged on one-third of the area of the side wall of the injection tube (5), and a reaction chamber (52) is provided in the injection tube (5); When the hydraulic cylinder (9) performs telescopic movement, it drives the injection tube (5) to perform telescopic movement along the vertical center axis of the rammed earth tube (4); the injection holes (51) provided on the injection tube (5) are arranged in the direction of the water collection well (6), and the microbubbles injected by the injection tube (5) pushed out by the hydraulic cylinder (9) are injected in the direction of the water collection well (6); the injection holes (51) are evenly arranged in an area of one third of the side wall of the injection tube (5), and the area is arranged as a vertical area along the length direction of the injection tube (5); The elevation angle of the top of the injection hole (51) is set to 45° to 60°, and the length of the rammed earth pipe (4) after being connected to the injection pipe (5) is less than the length of the water collection well (6).
2. A microbubble soil remediation system according to claim 1, characterized in that: The injection tube (5) is connected to a high-pressure air pump (1) and a high-pressure water injection machine (3) for generating microbubbles in the reaction chamber (52).
3. A microbubble soil remediation system according to claim 2, characterized in that: The end of the rammed earth pipe (4) is fixedly connected to a mounting platform (2), and a high-pressure air pump (1) and a high-pressure water injection machine (3) are respectively mounted on both sides of the mounting platform (2).