A microbial soil-fixing device and its soil-fixing method

Abstract

The present invention discloses a microbial soil fixation device and its soil fixation method, including a microbial soil fixation device body. A tractor is provided on the microbial soil fixation device body. A power system above the moving platform at one end of the tractor is connected in cooperation with a bacterial liquid tank, a flushing liquid tank, and a cementing liquid tank by wires. Stirrers are provided inside both the bacterial liquid tank and the cementing liquid tank. A heating ring is provided at the bottom of the bacterial liquid tank. Liquid pressure pumps on the outside of the bacterial liquid tank and the cementing liquid tank are provided with liquid guide pipes. A spiral conduit is provided on the outside of the flushing liquid tank. A ploughing mechanism at one end of the moving platform is connected in cooperation with a hydraulic cylinder at one end of the moving platform. The ploughing mechanism is provided with a plough, a flushing head, and injection holes. This device generates calcium carbonate crystals through the metabolic activities of microorganisms, cements the loose soil particles, and consolidates them into a whole, having the advantages of environmental friendliness and convenient implementation. It is controlled by traction through a tractor, is convenient to use, and has strong environmental adaptability.

Description

Technical Field

[0001] The present invention relates to the technical field of microbial soil fixation, and specifically to a microbial soil fixation device and a soil fixation method thereof. Background Art

[0002] The addition of nitrogen by microorganisms 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 constructing cell substances and assimilate them into intracellular biological macromolecules during the process of oxidizing carbon-containing substrates to obtain energy for growth. The nitrogen fixation of microorganisms depends on the growth status of microorganisms and is therefore closely related to the availability of substrate carbon.

[0003] There are two paths for microorganisms to absorb ammonium ions. One is the glutamate dehydrogenase path, that is, NH4+ is directly added to α-ketoglutaric acid amide through glutamate dehydrogenase to form glutamate. This path only occurs when there is relatively more NH4+ in the soil (the concentration in the soil solution > 1 mmol / L, or > 0.5 mg / kg soil). The other path is the glutamine synthetase-glutamine synthase path, that is, two glutamates are formed from one glutamate, NH4+, and α-ketoglutarate. This path occurs when the amount of NH in the soil is low (the concentration of NH4+ in the soil solution < 1 mmol / L or < 0.1 mg / kg soil).

[0004] Microorganisms can also absorb NO3- in the soil. However, since the nitrogen in NO3- is in an oxidized state, it needs to be reduced to NH4+ after entering the cell before it can further participate in the synthesis reaction of organic molecules. Therefore, microorganisms need more energy to utilize NO3- than to utilize NH4+. Furthermore, microorganisms are more "biased" towards the absorption of NH4+. The presence of NH4+ will inhibit the absorption of NO3-.

[0005] Currently, when using microorganisms for soil fixation, generally, the soil is manually turned over and then the microorganisms used for soil fixation are scattered into the soil. However, the manual soil turning is relatively shallow, and moreover, the soil-fixing microorganisms have little contact with the soil. Therefore, there is an urgent need for an improved technology to solve this problem existing in the prior art. Summary of the Invention

[0006] The purpose of the present invention is to provide a microbial soil fixation device and a soil fixation method thereof that generate calcium carbonate crystals through the metabolic activities of microorganisms, cement the loose soil particles, and consolidate them into a whole, with the advantages of environmental friendliness and convenient implementation, and are controlled by a tractor for easy use and strong environmental adaptability, so as to solve the problems raised in the above background art.

[0007] To achieve the above object, the present invention provides the following technical solution: A microbial soil-fixing device, including the main body of the microbial soil-fixing device, a tractor is provided on the main body of the microbial soil-fixing device, a connecting head is provided at one end of the tractor, and the connecting head is welded to the outer wall of one end of the tractor. A moving platform is provided at one end of the tractor, and the moving platform is cooperatively connected with the connecting head at the end of the tractor. Wheels are cooperatively provided on both sides below the moving platform;

[0008] A power system is provided above the moving platform. A bacterial liquid tank, a flushing liquid tank, and a cementing liquid tank are cooperatively provided on one side of the power system. The bacterial liquid tank, the flushing liquid tank, and the cementing liquid tank are fixedly connected to the moving platform. Wires are provided between the power system and the bacterial liquid tank and the cementing liquid tank. Liquid pressure pumps are provided at positions near the bottom outside the bacterial liquid tank, the flushing liquid tank, and the cementing liquid tank. The bacterial liquid tank, the flushing liquid tank, and the cementing liquid tank are cooperatively connected with the liquid pressure pumps by connecting pipes, and valves are provided on the connecting pipes;

[0009] A ploughing and harrowing mechanism is provided at one end of the moving platform. One end of the ploughing and harrowing mechanism is cooperatively connected with a hydraulic cylinder below the center of one end of the moving platform by a connecting shaft. The hydraulic cylinder is welded to the moving platform. A connecting swing arm is provided on the ploughing and harrowing mechanism. A ploughing and harrowing tool and a flushing head are provided below one end of the ploughing and harrowing mechanism. The ploughing and harrowing tool and the flushing head are arranged alternately, and the ploughing and harrowing tool and the flushing head are an integral structure with the ploughing and harrowing mechanism. A lifting frame and a flushing pipe are cooperatively provided above the ploughing and harrowing mechanism. The lifting frame and the flushing pipe are cooperatively arranged with the ploughing and harrowing tool and the flushing head.

[0010] Preferably, a heating ring is provided at the inner bottom of the bacterial liquid tank, and the heating ring is cooperatively installed with the bottom of the bacterial liquid tank. The heating ring is composed of spiral pile copper pipes, and the heating ring is connected to a generator.

[0011] Preferably, a liquid guiding pipe is provided between the liquid pressure pumps outside the bacterial liquid tank and the cementing liquid tank. The liquid guiding pipe is fixedly communicated with the liquid pressure pump. The liquid guiding pipe is communicated with the ploughing and harrowing tool by a liquid guiding pipe. Stirrers are provided inside the bacterial liquid tank and the cementing liquid tank, and a waterproof stirring motor and stirring paddles are provided on the stirrers.

[0012] Preferably, a flushing pipe head is provided below the flushing pipe. The top end of the flushing pipe head is perpendicularly welded and communicated with the flushing pipe. Flushing heads are symmetrically provided on both sides near the bottom end of the flushing pipe head. The flushing heads are fixedly connected to the outer wall of the flushing pipe head. A filter screen is provided at the flushing port of the flushing head. A spiral conduit is provided between the center of the flushing pipe and the liquid pressure pump outside the flushing liquid tank.

[0013] Preferably, the plough harrow is wedge-shaped. Injection holes are symmetrically arranged on both sides of the wedge-shaped tip at the bottom of the plough harrow. A filter screen is provided at the injection holes. The angle between the plough harrow and the swing arms on both sides of the plough harrow mechanism is 60°. The injection holes on the plough harrow are cooperatively connected with the bacterial liquid tank and the cementing liquid tank. The injection holes are cooperatively installed with the flushing heads.

[0014] Preferably, a soil fixation method of a microbial soil fixation device includes the following steps:

[0015] Step 1: Connect the mobile platform to the tractor through the connection part, and then install and fix the plough harrow, the bacterial liquid tank, the cementing liquid tank, the liquid guide pipe, the liquid pressure pump, the lifting frame and the hydraulic press on the mobile platform.

[0016] Step 2: Fill the power system with fuel, connect the liquid pressure pump and the hydraulic press to the power system, check whether the heating ring is working properly, keep the valve closed, add bacterial liquid and cementing liquid to the bacterial liquid tank and the cementing liquid tank respectively, add water to the flushing liquid tank, and connect the liquid guide pipe to the liquid inlet holes at the proximal ends of the bacterial liquid tank, the cementing liquid tank, the valve, the liquid pressure pump and the plough harrow smoothly.

[0017] Step 3: Open the valve to test whether the liquid flows out normally. After it can flow out normally, open the liquid pressure pump at different powers to test the pressurizing effect of the pressure pump on the liquid. When the pressurizing effect is normal, cooperate with the adjustment of the valve and the power of the liquid pressure pump to achieve different ratios and flow rates of the bacterial liquid and the cementing liquid output, and the output cooperation is normal.

[0018] Step 4: Close the liquid pressure pump and the valve, check whether the lifting frame lifts and lowers normally, lower it until the flushing head and the injection hole are on the same horizontal plane, adjust the water outlet pressure, and test whether the flushing head sprays water normally.

[0019] Step 5: Control the hydraulic press to extend, lift the lifting frame to lift the plough harrow, move the equipment to the operation site, turn on the stirrer, set the temperature of the heating ring according to the local temperature to maintain the best activity of the bacterial colony, open the valve and the pressure pump, shorten the hydraulic press, make the plough harrow freely fall onto the soil body and pierce into the soil body, and the driver drives the tractor to travel according to the planned route.

[0020] Step 6: The liquid takes effect to achieve the soil fixation effect. When the soil fixation liquid does not drop according to the plan, lift the plough harrow, use the lifting frame to lower the flushing head to the height of the injection hole to spray water, and continue to work normally after cleaning.

[0021] Compared with the prior art, the beneficial effects of the present invention are:

[0022] (1) A heating ring is provided at the inner bottom of the bacterial liquid tank. The heating ring is cooperatively installed with the bottom of the bacterial liquid tank. The heating ring is composed of spiral pile copper tubes. The heating ring is connected to the generator. The heating ring is powered by the generator and is temperature controllable to heat the bacterial liquid and the cementing liquid to keep the bacterial colony maintaining the maximum activity.

[0023] (2) Both the bacterial liquid tank and the cementing liquid tank are provided with stirrers inside. The stirrers are provided with waterproof stirring motors and stirring paddles. The stirrers have waterproof functions and extend into the bacterial liquid tank and the cementing liquid tank to stir the liquid evenly, preventing precipitation and making the liquid uneven.

[0024] (3) On both sides of the pipe head of the flushing pipe near the bottom end, flushing heads are symmetrically arranged. The flushing heads are fixedly connected to the outer wall of the pipe head of the flushing pipe. The flushing heads can be lifted and lowered by a lifting frame. When lowered to the position of the injection hole, the flushing heads are used to spray out the soil blocking the injection hole with water.

[0025] (4) The plow harrow can plow the soil to open injection holes to contact deeper soil layers and inject the cementing liquid into the soil mass.

[0026] (5) This device generates calcium carbonate crystals through the metabolic activities of microorganisms, cements the loose soil particles, and consolidates them into a whole. It has the advantages of environmental friendliness and convenient implementation. It is controlled by traction by a tractor, is easy to use, and has strong environmental adaptability. Description of the Drawings

[0027] Figure 1 It is a schematic diagram of the main structure of the microbial soil solidification device of the present invention;

[0028] Figure 2 It is a schematic diagram of the disassembled structure of the microbial soil solidification device of the present invention;

[0029] Figure 3 It is the front view of the microbial soil solidification device of the present invention;

[0030] Figure 4 It is the side view of the main body of the microbial soil solidification device of the present invention;

[0031] Figure 5 It is a schematic diagram of the internal structure of the flushing liquid tank and the cementing liquid tank of the present invention;

[0032] Figure 6 It is a schematic diagram of the structure of the flushing mechanism of the present invention.

[0033] In the figure: 1. Main body of the microbial soil solidification device; 2. Tractor; 3. Connector; 4. Power system; 5. Bacterial liquid tank; 6. Flushing liquid tank; 7. Cementing liquid tank; 8. Valve; 9. Liquid pressure pump; 10. Liquid guide pipe; 11. Spiral guide pipe; 12. Lifting frame; 13. Plow harrow; 14. Flushing head; 15. Injection hole; 16. Flushing pipe; 17. Stirrer; 18. Heating ring; 19. Flushing mechanism; 20. Mobile platform; 21. Connecting swing arm; 22. Hydraulic cylinder; 23. Plow harrow mechanism. Detailed Implementation Modes

[0034] The following will clearly and completely describe the technical solutions in the embodiments of the present invention with reference to the accompanying drawings in the embodiments of the present invention. Obviously, the described embodiments are only a part of the embodiments of the present invention, rather than all the embodiments. All other embodiments obtained by those of ordinary skill in the art based on the embodiments of the present invention without creative efforts shall fall within the protection scope of the present invention.

[0035] Please refer to Figures 1-6 , the present invention provides a technical solution: a microbial soil-fixing device, including a microbial soil-fixing device body 1. A tractor 2 is provided on the microbial soil-fixing device body 1. A connecting head 3 is provided at one end of the tractor 2. The connecting head 3 is welded to the outer wall of one end of the tractor 2. A moving platform 20 is provided at one end of the tractor 2. The moving platform 20 is cooperatively connected with the connecting head 3 at the end of the tractor 2. Wheels are cooperatively provided on both sides below the moving platform 20.

[0036] A power system 4 is provided above the moving platform 20. A bacterial liquid tank 5, a flushing liquid tank 6, and a cementing liquid tank 7 are cooperatively provided on one side of the power system 4. The bacterial liquid tank 5, the flushing liquid tank 6, and the cementing liquid tank 7 are fixedly connected to the moving platform 20. Wires are provided between the power system 4 and the bacterial liquid tank 5 and the cementing liquid tank 7. Liquid pressure pumps 9 are provided at positions close to the bottom on the outer sides of the bacterial liquid tank 5, the flushing liquid tank 6, and the cementing liquid tank 7. The bacterial liquid tank 5, the flushing liquid tank 6, and the cementing liquid tank 7 are cooperatively connected to the liquid pressure pumps 9 by connecting pipes. Valves 8 are provided on the connecting pipes. A heating ring 18 is provided at the inner bottom of the bacterial liquid tank 5. The heating ring 18 is cooperatively installed with the bottom of the bacterial liquid tank 5. The heating ring 18 is composed of spiral pile copper pipes. The heating ring 18 is connected to a generator. The heating ring 18 is powered by the generator and is temperature controllable to heat the bacterial liquid and the cementing liquid to maintain the maximum activity of the bacterial community.

[0037] A liquid guide pipe 10 is provided between the liquid pressure pumps 9 on the outer sides of the bacterial liquid tank 5 and the cementing liquid tank 7. The liquid guide pipe 10 is fixedly communicated with the liquid pressure pump 9. The liquid guide pipe 10 is communicated with a harrow 13 by the liquid guide pipe 10. Stirrers 17 are provided inside the bacterial liquid tank 5 and the cementing liquid tank 7. Waterproof stirring motors and stirring paddles are provided on the stirrers 17. The stirrers 17 have a waterproof function and extend into the bacterial liquid tank 5 and the cementing liquid tank 7 to stir the liquid evenly to prevent precipitation and make the liquid uneven.

[0038] One end of the mobile platform 20 is provided with a plough harrow mechanism 23. One end of the plough harrow mechanism 23 is connected to a hydraulic cylinder 22 below the center of the end of one end of the mobile platform 20 by a connecting shaft. The hydraulic cylinder 22 is welded to the mobile platform 20. A connecting swing arm 21 is provided on the plough harrow mechanism 23. Below one end of the plough harrow mechanism 23, there are a plough harrow 13 and a flushing head 14. The plough harrow 13 and the flushing head 14 are arranged alternately. The plough harrow 13 and the flushing head 14 are of an integral structure with the plough harrow mechanism 23. The plough harrow 13 is wedge-shaped. On both sides of the wedge-shaped tip at the bottom of the plough harrow 13, injection holes 15 are symmetrically provided. A filter screen is provided at the injection holes 15 to prevent blockage after contacting the soil. The plough harrow 13 forms a 60° angle with the swing arms on both sides of the plough harrow mechanism 23. The injection holes 15 on the plough harrow 13 are connected to the bacterial liquid tank 5 and the cementing liquid tank 7 in a matching manner. The injection holes 15 are installed in cooperation with the flushing head 14. Above the plough harrow mechanism 23, a lifting frame 12 and a flushing pipe 16 are provided in cooperation. The lifting frame 12 and the flushing pipe 16 are arranged in cooperation with the plough harrow 13 and the flushing head 14. The plough harrow 13 can plough the soil to open injection holes to contact deeper soil and inject cementing liquid into the soil mass.

[0039] Below the flushing pipe 16, there is a flushing pipe head. The top end of the flushing pipe head is vertically welded and communicated with the flushing pipe 16. On both sides of the flushing pipe head near the bottom end, flushing heads 14 are symmetrically provided. The flushing heads 14 are fixedly connected to the outer wall of the flushing pipe head. The flushing heads 14 can be lifted and lowered through the lifting frame 12. When lowered to the position of the injection holes, the flushing heads 14 are used to spray out the soil blocking the injection holes with water. A filter screen is provided at the flushing port of the flushing heads 14. Between the center of the flushing pipe 16 and a liquid pressure pump 9 outside the flushing liquid tank 6, there is a spiral conduit 11.

[0040] The soil consolidation method of the microbial soil consolidation device: Connect the mobile platform 20 to the tractor 2 through the connection part, and then install and fix the plough harrow 13, the bacterial liquid tank 5, the cementing liquid tank 7, the liquid guide pipe 10, the liquid pressure pump 9, the lifting frame 12 and the hydraulic machine on the mobile platform.

[0041] Fill the power system 4 with fuel, and connect the liquid pressure pump 9 and the hydraulic machine to the power system 4. Check whether the heating ring 18 is working properly. Keep the valve 8 closed. Add bacterial liquid and cementing liquid to the bacterial liquid tank 5 and the cementing liquid tank 7 respectively, add water to the flushing liquid tank 6, and make the liquid guide pipe 10 smoothly connected to the liquid inlet holes at the proximal ends of the bacterial liquid tank 5, the cementing liquid tank 7, the valve 8, the liquid pressure pump 9 and the plough harrow 13.

[0042] Open the valve 8 and test whether the liquid flows out normally. After it can flow out normally, turn on the liquid pressure pump 9 at different powers to test the pressurizing effect of the pressure pump on the liquid. When the pressurizing effect is normal, cooperate with the adjustment of the valve 8 and the power of the liquid pressure pump 9 to achieve different ratios and flow rates of the bacterial liquid and the cementing liquid output, and the cooperation output is normal.

[0043] Turn off the liquid pressure pump 9 and the valve 8, check whether the lifting frame 12 can be lifted and lowered normally, lower it until the flushing head 14 and the injection hole 15 are on the same horizontal plane, adjust the water outlet pressure, and test whether the flushing head 14 sprays water normally.

[0044] Control the hydraulic press to extend, lift the lifting frame 12 to lift the plough harrow 13, move the equipment to the working site, turn on the stirrer 17, set the temperature of the heating ring 18 according to the local temperature to maintain the best activity of the colonies, turn on the valve 8 and the pressure pump, shorten the hydraulic press, and let the plough harrow 13 freely fall onto the soil body and pierce into the soil body. The driver drives the tractor 2 to travel along the planned route.

[0045] The liquid takes effect to achieve the soil consolidation effect. When the soil consolidation liquid does not drop according to the plan, lift the plough harrow 13, use the lifting frame 12 to lower the flushing head 14 to the height of the injection hole 15 to spray water, and continue normal work after cleaning.

[0046] This device generates calcium carbonate crystals through the metabolic activities of microorganisms, cements the loose soil particles, and consolidates them into a whole. It has the advantages of being environmentally friendly and easy to implement. It is controlled by traction through a tractor, is easy to use, and has strong environmental adaptability.

[0047] Although the embodiments of the present invention have been shown and described, those of ordinary skill in the art can understand that various changes, modifications, substitutions, and variations can be made to these embodiments without departing from the principle and spirit of the present invention. The scope of the present invention is defined by the appended claims and their equivalents.

Claims

1. A microbial soil fixation device, comprising a microbial soil fixation device body (1), characterized in that: A tractor (2) is provided on the main body (1) of the microbial soil-fixing device. A connecting head (3) is provided at one end of the tractor (2). The connecting head (3) is welded to the outer wall of one end of the tractor (2). A mobile platform (20) is provided at one end of the tractor (2). The mobile platform (20) is connected in cooperation with the connecting head (3) at the end of the tractor (2). Wheels are provided on both sides below the mobile platform (20) in a cooperative manner; A power system (4) is provided above the mobile platform (20). A bacterial liquid tank (5), a flushing liquid tank (6), and a cementing liquid tank (7) are provided on one side of the power system (4) in a cooperative manner. The bacterial liquid tank (5), the flushing liquid tank (6), and the cementing liquid tank (7) are fixedly connected to the mobile platform (20). Wires are provided between the power system (4) and the bacterial liquid tank (5) and the cementing liquid tank (7). Liquid pressure pumps (9) are provided at positions near the bottom on the outer sides of the bacterial liquid tank (5), the flushing liquid tank (6), and the cementing liquid tank (7). The bacterial liquid tank (5), the flushing liquid tank (6), and the cementing liquid tank (7) are connected in cooperation with the liquid pressure pumps (9) by connecting pipes, and valves (8) are provided on the connecting pipes; A ploughing and harrowing mechanism (23) is provided at one end of the mobile platform (20). One end of the ploughing and harrowing mechanism (23) is connected in cooperation with a hydraulic cylinder (22) below the center of one end of the mobile platform (20) by a connecting shaft. The hydraulic cylinder (22) is welded to the mobile platform (20). A connecting swing arm (21) is provided on the ploughing and harrowing mechanism (23). A plough (13) and a flushing head (14) are provided below one end of the ploughing and harrowing mechanism (23). The plough (13) and the flushing head (14) are arranged alternately. The plough (13) and the flushing head (14) are of an integral structure with the ploughing and harrowing mechanism (23). A lifting frame (12) and a flushing pipe (16) are provided above the ploughing and harrowing mechanism (23) in a cooperative manner. The lifting frame (12) and the flushing pipe (16) are arranged in cooperation with the plough (13) and the flushing head (14); A heating ring (18) is provided at the inner bottom of the bacterial liquid tank (5). The heating ring (18) is installed in cooperation with the bottom of the bacterial liquid tank (5). The heating ring (18) is a spiral copper pipe and is connected to a generator; A liquid guide pipe (10) is provided between the liquid pressure pumps (9) on the outer sides of the bacterial liquid tank (5) and the cementing liquid tank (7). The liquid guide pipe (10) is fixedly communicated with the liquid pressure pump (9). The liquid guide pipe (10) is communicated with the plough (13) by the liquid guide pipe (10). Stirrers (17) are provided inside the bacterial liquid tank (5) and the cementing liquid tank (7). Waterproof stirring motors and stirring paddles are provided on the stirrers (17).

2. The microbial soil fixation device according to claim 1, characterized in that: Below the said flushing pipe (16) is provided with a flushing pipe nozzle, the top end of the flushing pipe nozzle is perpendicularly welded and communicated with the flushing pipe (16), on both sides of the flushing pipe nozzle near the bottom end are symmetrically provided with flushing heads (14), the flushing heads (14) are fixedly connected to the outer wall of the flushing pipe nozzle, and a filter screen is provided at the flushing port of the flushing head (14). Between the center of the flushing pipe (16) and the liquid pressure pump (9) outside the flushing liquid tank (6) is provided a spiral conduit (11).

3. The microbial soil fixation device according to claim 1, characterized in that: The said harrow (13) is wedge-shaped, on both sides of the wedge-shaped tip below the harrow (13) are symmetrically provided injection holes (15), and a filter screen is provided at the injection holes (15). The harrow (13) forms a 60° angle with the swing arms on both sides of the harrow mechanism (23). The injection holes (15) on the harrow (13) are cooperatively connected with the bacterial liquid tank (5) and the cementing liquid tank (7), and the injection holes (15) are cooperatively installed with the flushing heads (14).

4. A soil fixation method using the soil fixation device of the microorganism according to claim 1, comprising the following steps: Step 1: Connect the mobile platform (20) to the tractor (2) through a connector, and then install and fix the harrow (13), the bacterial liquid tank (5), the cementing liquid tank (7), the liquid guiding pipe (10), the liquid pressure pump (9), the lifting frame (12) and the hydraulic press on the mobile platform. Step 2: Fill the power system (4) with fuel, connect the liquid pressure pump (9) and the hydraulic press to the power system (4), check whether the heating ring (18) is working properly, keep the valve (8) closed, add bacterial liquid and cementing liquid to the bacterial liquid tank (5) and the cementing liquid tank (7) respectively, add water to the flushing liquid tank (6), and make the liquid guiding pipe (10) smoothly connected to the liquid inlet holes at the proximal ends of the bacterial liquid tank (5), the cementing liquid tank (7), the valve (8), the liquid pressure pump (9) and the harrow (13). Step 3: Open the valve (8) to test whether the liquid flows out normally. After it can flow out normally, open the liquid pressure pump (9) at different powers to test the pressurizing effect of the pressure pump on the liquid. When the pressurizing effect is normal, realize different ratios and flow rates of the bacterial liquid and the cementing liquid by coordinating the adjustment of the valve (8) and the power of the liquid pressure pump (9), and the coordinated output is normal. Step 4: Close the liquid pressure pump (9) and the valve (8), check whether the lifting frame (12) can be lifted and lowered normally, lower it until the flushing head (14) and the injection hole (15) are on the same horizontal plane, adjust the water outlet pressure, and test whether the flushing head (14) sprays water normally. Step 5: Control the hydraulic press to extend, lift the lifting frame (12) to lift the harrow (13), move the equipment to the operation site, turn on the stirrer (17), set the temperature of the heating ring (18) according to the local temperature to keep the best activity of the bacterial colonies, open the valve (8) and the pressure pump, shorten the hydraulic press, make the harrow (13) freely fall onto the soil body and pierce into the soil body, and the driver drives the tractor (2) to travel along the planned route. Step 6: The liquid takes effect to achieve the soil fixation effect. When the soil fixation liquid does not drop as planned, raise the plow harrow (13), and use the lifting frame (12) to lower the flushing head (14) to the height of the injection hole (15) to spray water. After cleaning, continue normal operation.

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