A needle-penetrating microbial soil-fixing device and soil-fixing method thereof

Abstract

The present invention discloses a needle-penetrating microbial soil-fixing device, comprising a needle-penetrating soil-fixing device, a tractor is provided on the needle-penetrating soil-fixing device, a connector at one end of the tractor is connected to one end of a mobile platform, a power system, a cementing liquid tank, a flushing liquid tank, and a bacteria liquid tank are provided above the mobile platform, valves are provided on the conduits on the outer walls of the cementing liquid tank, the flushing liquid tank, and the bacteria liquid tank, a pressure pump is provided at the other end of the conduit, a transmission part is provided inside an L-shaped bracket on an injection mechanism in the center of one end of the mobile platform, an injection platform is provided at the bottom end of the transmission part, injection tubes are provided at equal intervals at the bottom of the injection platform, a flushing tube is provided inside the injection platform, and a liquid guide tube is used to connect the flushing tube to the flushing liquid tank. The needle-penetrating soil-fixing device generates calcium carbonate crystals through the metabolic activity of microorganisms, cements the loose soil particles, and consolidates them into a whole, is environmentally friendly, easy to implement, easy to use, and has strong adaptability to the environment.

Description

Technical Field

[0001] The invention relates to the technical field of microbial soil consolidation, in particular to a needle-penetrating microbial soil consolidation device. Background Art

[0002] Microbial nitrogen fixation refers to the process in which soil microorganisms absorb ammonium cations, nitrate anions, or simple organic nitrogen-containing compounds from the soil environment as materials for cell substances and assimilate them into intracellular biomacromolecules while growing by oxidizing carbon-containing substrates to obtain energy. The nitrogen fixation effect of microorganisms depends on the growth conditions of the microorganisms and is therefore closely related to the effectiveness of the matrix carbon.

[0003] There are two pathways for microbial ammonium ion uptake: the glutamate dehydrogenase pathway, in which glutamate dehydrogenase directly adds NH4+ to α-ketoglutaramate to form glutamate. This pathway only occurs when soil NH4+ is relatively abundant (concentration in soil solution >1 mmol / L, or >0.5 mg / kg soil). The other pathway, the glutamine synthetase-preglutamine synthesis pathway, forms two glutamates from glutamate, NH4+, and α-ketoglutarate. This pathway occurs when the amount of soil NH4+ is low (NH4+ concentration in soil solution <1 mmol / L or <0.1 mg / kg soil).

[0004] Microorganisms can also absorb NO3- from the soil, but because the nitrogen in NO3- is in an oxidized state, it must undergo reduction to NH4+ after entering cells before it can further participate in the synthesis of organic molecules. Therefore, microorganisms require more energy to utilize NO3- than to utilize NH4+, resulting in a greater preference for NH4+. The presence of NH4+ inhibits the absorption of NO3-.

[0005] At present, microbial soil fixation generally involves manually turning the soil and then spreading the soil-fixing microorganisms into the soil. However, manual turning of the soil is relatively shallow, and the soil-fixing microorganisms have little contact with the soil. Therefore, an improved needle-penetrating microbial soil fixation technology is urgently needed to solve this problem in the existing technology. Summary of the Invention

[0006] The purpose of the present invention is to provide a needle-penetrating microbial soil-solidifying device that generates calcium carbonate crystals through the metabolic activity of microorganisms, cements loose soil particles, and consolidates them into a whole. The device is environmentally friendly, easy to implement, easy to use, and has strong environmental adaptability, so as to solve the problems raised in the above-mentioned background technology.

[0007] To achieve the above-mentioned object, the present invention provides the following technical solutions: a needle-penetrating microbial soil-fixing device, comprising a needle-penetrating soil-fixing device, a tractor provided on the needle-penetrating soil-fixing device, a mobile platform provided at one end of the tractor, the tractor and the mobile platform being cooperatively connected;

[0008] The mobile platform is provided with a power system, a cementing liquid tank, a flushing liquid tank, and a bacterial liquid tank, and the power system, the cementing liquid tank, the flushing liquid tank, and the bacterial liquid tank are all fixedly connected to the surface of the mobile platform, and the power system and the cementing liquid tank and the bacterial liquid tank are connected by wires;

[0009] An injection mechanism is provided in the center of the other end of the mobile platform, and an L-shaped bracket is provided on the injection mechanism. The top of the L-shaped bracket is welded to the mobile platform, and a transmission part is provided inside one end of the L-shaped bracket. An anti-slip pin is provided on the side of the transmission part close to the top. An injection platform is provided at the bottom end of the transmission part, and injection tubes are provided at equal intervals below the injection platform. The injection platform and the injection tube are an integrated structure, and the injection platform and the interior of the injection tube are connected to each other. A flushing tube is provided inside the injection platform.

[0010] Preferably, a connecting piece is provided at a central position near the bottom of one end of the tractor, the connecting piece is welded to the outer wall of the tractor end, and the connecting piece is movably connected to the center of one end of the mobile platform through a connecting shaft.

[0011] Preferably, a conduit is provided on the outside of the cementing liquid tank, the flushing liquid tank and the bacteria liquid tank near the bottom. The outer wall of the cementing liquid tank, the flushing liquid tank and the bacteria liquid tank is welded and connected to one end of the conduit. A valve is provided on the conduit. A pressure pump is provided at the other end of the conduit. A liquid guide tube is provided between the pressure pump on the outside of the cementing liquid tank and the bacteria liquid tank, and a spiral conduit is provided between the center of the liquid guide tube and the injection platform.

[0012] Preferably, a spiral conduit is provided between the pressure pump and the flushing pipe outside the flushing liquid tank.

[0013] Preferably, the inside of the cementing liquid tank and the bacteria liquid tank are both provided with a stirrer, the stirrer is provided with a motor and a stirring paddle, and the inner bottom of the cementing liquid tank is provided with a heating ring.

[0014] Preferably, a driving machine is provided at the center of one end of the mobile platform, and the driving machine is fixedly connected to the mobile platform. A driving swing arm is provided on the rotating shaft of the driving machine, and one end of the driving swing arm is fixedly connected to the rotating shaft of the driving machine. The other end of the driving swing arm is provided with a matching connecting swing arm, and the bottom end of the matching connecting swing arm is matched with the top end of the transmission part by an anti-slip pin.

[0015] Preferably, the injection tube is cylindrical, and the bottom end of the injection tube is conical. The injection tube is symmetrically provided with injection holes on the side walls on both sides near the bottom end, and a dustproof net is provided at the injection holes.

[0016] Preferably, a soil fixing method using a needle-penetrating microbial soil fixing device comprises the following steps:

[0017] Step 1: Connect the mobile platform to the tractor through the connection, and then install the bacteria liquid tank, cementing liquid tank, flushing liquid tank, liquid guide tube, driving machine, fixed guide rail, lifting device and liquid pressure pump on the mobile platform and fix them;

[0018] Step 2: Fill the power system with fuel and connect the driving engine, liquid pressure pump, and lifting device to the power system. Keep the valves closed and add bacterial liquid and adhesive liquid to the bacterial liquid tank and adhesive liquid tank respectively. Connect the liquid guide tube to the bacterial liquid tank, adhesive liquid tank, valve, and the liquid inlet at the proximal end of the pressure pump to ensure smooth flow. Open the valve and test whether the liquid flows out normally.

[0019] Step 3: After the liquid can flow out normally, turn on the liquid booster pump and use different powers to test the pressurization effect of the booster pump on the liquid. If the pressurization effect is normal, adjust the valve and the power of the booster pump to achieve different ratios and flow rates of bacterial liquid and cementing liquid. If the output is normal, turn off the booster pump and valve, add water to the flushing liquid tank, keep the connection unobstructed, check the connection of the liquid guide tube, use the lifting device to complete the lifting of the flushing tube, and adjust the booster pump to check whether the flushing function is normal;

[0020] Step 4: Lift the flushing pipe and move the equipment to the work site. Turn on the agitator and the heating ring to maximize the activity of the bacterial solution. Open the valve and the pressure pump, start the driver, and reciprocate the injection tube into the soil and lift it up. The driver drives the tractor at an appropriate driving speed according to the injection frequency and drives according to the planned route.

[0021] Step 5. When the injection tube is blocked, pause the driving machine to stop the movement of the injection tube, lower the flushing tube to the injection tube mouth, start the pressure pump to flush the injection tube. After cleaning, lift the flushing tube, restart the driving machine, and continue to complete the injection soil consolidation operation.

[0022] Compared with the prior art, the present invention has the following beneficial effects:

[0023] (1) The power system is connected to the cementing liquid tank and the bacterial liquid tank by wires. A stirrer is installed inside the cementing liquid tank and the bacterial liquid tank. The stirrer extends into the bacterial liquid tank and the cementing liquid tank to stir the liquid evenly and prevent precipitation from making the liquid uneven. The stirrer is equipped with a motor and a stirring paddle. A heating ring is provided at the bottom of the inner side of the cementing liquid tank. The heating ring is powered by a generator and can control the temperature. It heats the bacterial liquid and the cementing liquid to maintain the maximum activity of the bacterial community.

[0024] (2) The needle-penetrating soil consolidation device generates calcium carbonate crystals through the metabolic activity of microorganisms, which cements the loose soil particles and consolidates them into a whole. It is environmentally friendly, easy to implement and use, and has strong adaptability to the environment. BRIEF DESCRIPTION OF THE DRAWINGS

[0025] Figure 1 This is a schematic structural diagram of the needle-penetrating soil-fixing device of the present invention;

[0026] Figure 2 This is a front view of the needle-penetrating soil-fixing device of the present invention;

[0027] Figure 3 A top view of the needle-penetrating soil-fixing device of the present invention;

[0028] Figure 4 This is a schematic structural diagram of the injection mechanism of the present invention;

[0029] Figure 5 It is a side view of the injection mechanism of the present invention;

[0030] Figure 6 It is a rear view of the injection mechanism of the present invention.

[0031] In the figure: 1. Needle-penetrating soil consolidation device; 2. Tractor; 3. Cementing liquid tank; 4. Flushing liquid tank; 5. Bacteria liquid tank; 6. Connectors; 7. Power system; 8. Mobile platform; 9. Conduit; 10. Valve; 11. Pressure pump; 12. Liquid guide tube; 13. Injection mechanism; 14. Matching connector; 15. L-shaped bracket; 16. Transmission part; 17. Injection platform; 18. Injection tube; 19. Flushing tube; 20. Driving machine; 21. Driving swing arm; 22. Matching connecting swing arm. DETAILED DESCRIPTION

[0032] The following will clearly and completely describe the technical solutions in the embodiments of the present invention in conjunction with the accompanying drawings. Obviously, the described embodiments are only part of the embodiments of the present invention, not all of the embodiments. Based on the embodiments of the present invention, all other embodiments obtained by ordinary technicians in this field without making creative efforts are within the scope of protection of the present invention.

[0033] See also Figure 1-6 The present invention provides a technical solution: a needle-penetrating microbial soil-fixing device, comprising a needle-penetrating soil-fixing device 1, a tractor 2 is provided on the needle-penetrating soil-fixing device 1, a mobile platform 8 is provided at one end of the tractor 2, the tractor 2 and the mobile platform 8 are cooperatively connected, a connecting piece 6 is provided at the central position near the bottom of one end of the tractor 2, the connecting piece 6 is welded to the outer wall of the end of the tractor 2, and the connecting piece 6 and the center of one end of the mobile platform 8 are movably connected by a connecting shaft.

[0034] The mobile platform 8 is provided with a power system 7, a cementing liquid tank 3, a flushing liquid tank 4, and a bacteria liquid tank 5. The power system 7, the cementing liquid tank 3, the flushing liquid tank 4, and the bacteria liquid tank 5 are all fixedly connected to the surface of the mobile platform 8. The power system 7 and the cementing liquid tank 3 and the bacteria liquid tank 5 are connected by wires. A stirrer is provided inside the cementing liquid tank 3 and the bacteria liquid tank 5. The stirrer extends into the bacteria liquid tank 5 and the cementing liquid tank 3 to stir the liquid evenly and prevent precipitation from making the liquid uneven. The stirrer is provided with a motor and a stirring paddle. The inner bottom of the cementing liquid tank 3 is provided with a heating ring. The heating ring is powered by a generator and can be temperature-controlled to heat the bacteria liquid and the cementing liquid to maintain maximum activity of the bacterial community.

[0035] An injection mechanism 13 is provided in the center of the other end of the mobile platform 8, and an L-shaped bracket 15 is provided on the injection mechanism 13. The top of the L-shaped bracket 15 is welded to the mobile platform 8, and a transmission part 16 is provided inside one end of the L-shaped bracket 15. An anti-slip pin is provided on the side of the transmission part 16 near the top, and an injection platform 17 is provided at the bottom end of the transmission part 16. Injection tubes 18 are provided at equal intervals below the injection platform 17. The injection tubes 18 are cylindrical, and the bottom end of the injection tubes 18 is conical. Injection holes are symmetrically provided on the side walls on both sides near the bottom of the injection tube 18, and a dustproof net is provided at the injection holes.

[0036] The injection platform 17 and the injection tube 18 are an integrated structure. The injection platform 17 and the injection tube 18 are internally connected to each other. A flushing tube 19 is provided inside the injection platform 17. A spiral conduit is provided between the pressure pump 11 outside the flushing liquid tank 4 and the flushing tube 19. The spiral conduit enables the flushing liquid tank 4 to provide flushing water to the flushing tube 19.

[0037] A conduit 9 is provided near the bottom of the outer sides of the cementing liquid tank 3, the flushing liquid tank 4, and the bacteria liquid tank 5. The outer walls of the cementing liquid tank 3, the flushing liquid tank 4, and the bacteria liquid tank 5 are welded and connected to one end of the conduit 9. A valve 10 is provided on the conduit 9. A pressure pump 11 is provided at the other end of the conduit 9. A liquid guide tube 12 is provided between the pressure pump 11 on the outer sides of the cementing liquid tank 3 and the bacteria liquid tank 5. A spiral conduit is provided between the center of the liquid guide tube 12 and the injection platform 17.

[0038] A driving motor 20 is provided at the center of one end of the mobile platform 8, and the driving motor 20 is fixedly connected to the mobile platform 8. A driving swing arm 21 is provided on the rotating shaft of the driving motor 20. One end of the driving swing arm 21 is fixedly connected to the rotating shaft of the driving motor 20, and the other end of the driving swing arm 21 is provided with a matching connecting swing arm 22. The bottom end of the matching connecting swing arm 22 is matched with the top end of the transmission member 16 by an anti-slip pin.

[0039] The soil fixing method of the needle-penetrating microbial soil fixing device is as follows: the mobile platform 8 is connected to the tractor 2 through the connection, and then the bacteria liquid tank 5, the cementing liquid tank 3, the flushing liquid tank 4, the liquid guide tube 12, the driving machine, the fixed guide rail, the lifting device and the liquid pressure pump are installed on the mobile platform 8 and fixed.

[0040] Fill the power system 7 with fuel, and connect the driving machine, liquid pressure pump, and lifting device to the power system 7. Keep the valve 10 closed, add bacterial liquid and adhesive liquid to the bacterial liquid tank 5 and adhesive liquid tank 3 respectively, connect the liquid guide tube 12 to the bacterial liquid tank 5, adhesive liquid tank 3, valve 10, and the liquid inlet hole at the proximal end of the pressure pump 11. Open the valve 10 and test whether the liquid flows out normally.

[0041] After it can flow out normally, turn on the liquid pressure pump, use different powers, test the pressurizing effect of the pressure pump 11 on the liquid, the pressurizing effect is normal, cooperate with the adjustment of the valve 10 and the power of the pressure pump 11 to achieve different ratios and flow rate outputs of the bacterial liquid and the cementing liquid, and the output is normal. Close the pressure pump 11 and the valve 10, add water to the flushing liquid tank 4, keep the connection unobstructed, check that the connection of the liquid guide tube 12 is unobstructed, and use the lifting device to complete the lifting and lowering of the flushing tube 19, and adjust the pressure pump 11 to check whether the flushing function is normal.

[0042] Lift the flushing pipe 19, move the equipment to the work site, turn on the agitator and the heating ring to maximize the activity of the bacterial solution, open the valve 10 and the pressure pump 11, start the driving machine, and make the injection tube reciprocate into the soil and lift it up. The driver drives the tractor to select an appropriate driving speed according to the injection frequency and drive according to the planned route.

[0043] When the injection tube is blocked, pause the driving machine to stop the movement of the injection tube, lower the flushing tube to the injection tube mouth, start the pressure pump to flush the injection tube. After cleaning, lift the flushing tube, restart the driving machine, and continue to complete the injection soil consolidation operation.

[0044] The needle-penetrating soil consolidation device generates calcium carbonate crystals through the metabolic activity of microorganisms, cementing the loose soil particles and consolidating them into a whole. It is environmentally friendly, easy to implement and use, and has strong adaptability to the environment.

[0045] While embodiments of the present invention have been shown and described, it will be appreciated by those skilled in the art that various changes, modifications, substitutions, and variations may be made to these embodiments without departing from the principles and spirit of the invention, and that the scope of the invention is defined by the appended claims and their equivalents.

Claims

1. A needle-penetrating microbial soil-fixing device, comprising a needle-penetrating soil-fixing device (1), characterized in that: The needle-penetrating soil-fixing device (1) is provided with a tractor (2), one end of the tractor (2) is provided with a mobile platform (8), and the tractor (2) and the mobile platform (8) are cooperatively connected; The mobile platform (8) is provided with a power system (7), a bonding liquid tank (3), a flushing liquid tank (4), and a bacterial liquid tank (5); the power system (7), the bonding liquid tank (3), the flushing liquid tank (4), and the bacterial liquid tank (5) are all fixedly connected to the surface of the mobile platform (8); the power system (7) and the bonding liquid tank (3) and the bacterial liquid tank (5) are connected by wires; The outer sides of the cementing liquid tank (3), the flushing liquid tank (4), and the bacterial liquid tank (5) are all provided with a conduit (9) near the bottom. The outer walls of the cementing liquid tank (3), the flushing liquid tank (4), and the bacterial liquid tank (5) are welded and connected to one end of the conduit (9). A valve (10) is provided on the conduit (9). A pressure pump (11) is provided at the other end of the conduit (9). A liquid guide tube (12) is provided between the pressure pump (11) on the outer sides of the cementing liquid tank (3) and the bacterial liquid tank (5). A spiral conduit is provided between the center of the liquid guide tube (12) and the injection platform (17); An injection mechanism (13) is provided in the center of the other end of the mobile platform (8), and an L-shaped bracket (15) is provided on the injection mechanism (13). The top of the L-shaped bracket (15) is welded to the mobile platform (8). A transmission member (16) is provided inside one end of the L-shaped bracket (15), and an anti-drop pin is provided on the side of the transmission member (16) close to the top. An injection platform (17) is provided at the bottom end of the transmission member (16), and injection tubes (18) are provided at equal intervals below the injection platform (17). The injection platform (17) and the injection tube (18) are an integrated structure, and the injection platform (17) and the injection tube (18) are connected to each other. A flushing tube (19) is provided inside the injection platform (17). The inside of the cementing liquid tank (3) and the bacterial liquid tank (5) are both provided with a stirrer, the stirrer is provided with a motor and a stirring paddle, and the inner bottom of the cementing liquid tank (3) is provided with a heating ring; A driving machine (20) is provided at the center of one end of the mobile platform (8), and the driving machine (20) is fixedly connected to the mobile platform (8). A driving swing arm (21) is provided on the rotating shaft of the driving machine (20), and one end of the driving swing arm (21) is fixedly connected to the rotating shaft of the driving machine (20). The other end of the driving swing arm (21) is provided with a matching connecting swing arm (22), and the bottom end of the matching connecting swing arm (22) is matched with the top end of the transmission member (16) by an anti-drop pin.

2. The needle-penetrating microbial soil-stabilizing device according to claim 1, characterized in that: A connecting piece (6) is provided at a central position near the bottom of one end of the tractor (2), and the connecting piece (6) is welded to the outer wall of the end of the tractor (2). The connecting piece (6) is movably connected to the center of one end of the mobile platform (8) by a connecting shaft.

3. The needle-penetrating microbial soil-stabilizing device according to claim 1, characterized in that: A spiral conduit is provided between the pressure pump (11) and the flushing pipe (19) outside the flushing liquid tank (4).

4. The needle-penetrating microbial soil-stabilizing device according to claim 1, characterized in that: The injection tube (18) is cylindrical, and the bottom end of the injection tube (18) is conical. The injection tube (18) is symmetrically provided with injection holes on the side walls near the bottom end, and a dustproof net is provided at the injection holes.

5. A soil-fixing method for implementing the needle-penetrating microbial soil-fixing device of claim 1 comprises the following steps: Step 1: Connect the mobile platform (8) to the tractor (2) through the connection, and then install the bacterial liquid tank (5), the cementing liquid tank (3), the flushing liquid tank (4), the liquid guide tube (12), the driving machine, the fixed guide rail, the lifting device and the liquid pressure pump on the mobile platform (8) and fix them; Step 2: Fill the power system (7) with fuel, and connect the driving machine, liquid pressure pump, and lifting device to the power system (7), keep the valve (10) closed, add bacterial liquid and adhesive liquid to the bacterial liquid tank (5) and the adhesive liquid tank (3), respectively, connect the liquid guide tube (12) to the bacterial liquid tank (5), the adhesive liquid tank (3), the valve (10), and the liquid inlet hole at the proximal end of the pressure pump (11) to ensure smooth flow, open the valve (10), and test whether the liquid flows out normally; Step 3: After the liquid can flow out normally, turn on the liquid boosting pump and use different powers to test the pressurizing effect of the boosting pump (11) on the liquid. If the pressurizing effect is normal, adjust the valve (10) and the power of the boosting pump (11) to achieve different ratios and flow rates of bacterial liquid and cementing liquid output. If the output is normal, turn off the boosting pump (11) and the valve (10), add water to the flushing liquid tank (4), keep the connection unobstructed, check whether the connection of the liquid guide tube (12) is unobstructed, and use the lifting device to complete the lifting of the flushing tube (19), and adjust the boosting pump (11) to check whether the flushing function is normal; Step 4: Lift the flushing pipe (19), move the equipment to the work site, turn on the agitator and the heating ring to maximize the activity of the bacterial solution, open the valve (10) and the pressure pump (11), start the driving machine, and make the injection tube reciprocate into the soil and lift it up. The driver drives the tractor to select an appropriate driving speed according to the injection frequency and drive according to the planned route; Step 5. When the injection tube is blocked, pause the driving machine to stop the movement of the injection tube, lower the flushing tube to the injection tube mouth, start the pressure pump to flush the injection tube. After cleaning, lift the flushing tube, restart the driving machine, and continue to complete the injection soil consolidation operation.

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