Soil improvement device and method

Abstract

The present invention relates to the technical field of contaminated soil remediation, and provides a soil improvement device and method thereof, the soil improvement device comprising: a frame; a traction device connected to the front end of the frame; a drug application box connected to the rear end of the frame through a connecting assembly; a spraying assembly capable of spraying at the bottom of the frame, on the connecting assembly, and inside the drug application box; when the frame is pulled forward by the traction device, the spraying outlet at the bottom of the frame is located above the ground, and the spraying outlets located on the connecting assembly and inside the drug application box are all located below the ground. The present invention arranges the connecting assembly obliquely behind the frame, fixes the drug application box at the bottom end of the connecting assembly, and evenly arranges a plurality of horizontal liquid spraying pipes between the connecting assemblies along the height direction. When the frame moves forward, the connecting assembly and the drug application box evenly spread the agent in the plowed soil layer so that the agent is evenly distributed in the soil, which greatly improves the soil improvement effect.

Description

Technical Field

[0001] The present invention relates to the technical field of contaminated soil remediation, and in particular, to a soil improvement device and method thereof, and in particular to an environmentally friendly soil improvement device and method thereof using a soil conditioner. Background Art

[0002] Soil pollution is caused by the long-term accumulation of pollutants generated by human activities in the soil, which causes the deterioration of soil quality. Soil pollution can lead to groundwater pollution and the enrichment of pesticide residues in agricultural products. Therefore, the problem of soil pollution needs to be solved urgently. Soil conditioners are mainly used to improve the physical, chemical and biological properties of soil to make it more suitable for plant growth. Humic acid conditioners are good ion exchangers, which have substitution and adsorption effects on harmful ions such as sodium and chlorine, and can regulate the pH of the soil.

[0003] Patent document CN118543650A discloses a heavy metal contaminated soil remediation and treatment device, including a mobile cabin, a longitudinal rotary tillage device, a soil conveying device, a remediation liquid spraying component and a ground film laying component, the longitudinal rotary tillage device is fixedly connected to one end of the lifting platform; the soil conveying device is movably arranged on the lifting platform and extends to the bottom of the mobile platform, the remediation liquid spraying component includes an upper remediation liquid spraying device and a lower remediation liquid spraying device, the upper remediation liquid spraying device is arranged above the soil conveying component, and the lower remediation liquid spraying device can be lifted and arranged below the mobile platform, the ground film laying component is fixedly connected to the other end of the lifting platform, and the ground film laying component is used to cover the soil sprayed with remediation liquid with ground film to reduce the evaporation of the remediation liquid. The prior art uses a soil conveying device to turn up the surface soil, sprays the repair liquid on the surface soil, and uses a repair liquid spraying device inserted into the soil to spray the repair liquid on the middle layer of soil. The repair liquid spraying structure of the existing soil improvement device inserted into the soil uses the spray heads arranged at intervals on the liquid guide pipe to spray the repair liquid into the soil. As the device moves forward, the plowshare will plow a groove in the soil layer.

[0004] With respect to the above-mentioned related technologies, the repair liquid is sprayed in the soil toward both sides of the groove and in the opposite direction of the forward direction. The repair liquid will penetrate downward in the soil due to gravity. Since multiple groups of nozzles are arranged in the vertical direction in the installation groove, it is easy to cause excessive dispersion of the repair liquid in the vertical direction. In order to make the repair liquid evenly distributed in the horizontal direction, the spacing between the plowshares needs to be close enough. As the number of plowshares increases, the resistance of the device during forward movement also increases. In addition, after the existing repair liquid is sprayed into the soil, it is easy to be difficult to retain in the soil due to slow infiltration, especially when the plowshare has opened a vertical groove in the soil layer. The repair liquid sprayed from the nozzle is easier to penetrate into the underground along the groove, resulting in a decrease in the soil repair effect. In summary, it is difficult for the existing soil improvement equipment to retain the repair liquid evenly in the soil. Summary of the invention

[0005] In view of the defects in the prior art, an object of the present invention is to provide a soil improvement device and method thereof.

[0006] A soil improvement device provided by the present invention comprises:

[0007] frame;

[0008] a traction device connected to the front end of the frame;

[0009] A pesticide application box is connected to the rear end of the frame via a connecting assembly;

[0010] A spraying assembly capable of spraying at the bottom of the frame, on the connecting assembly, and inside the application box;

[0011] When the frame is pulled forward by the pulling device, the spraying outlet at the bottom of the frame is located above the ground, and the spraying outlets located on the connecting assembly and inside the medicine application box are all located below the ground.

[0012] Preferably, the top surface of the medicine application box is an inclined surface with a lower front end and a higher rear end, and the bottom surface is a plane, and has an opening on the side facing the rear end.

[0013] Preferably, the spraying assembly includes a blower, an air duct, a powder distribution tube and a powder bin. The interior of the medicine application box has a accommodating space, the powder distribution tube is arranged in the accommodating space, the blower and the powder bin are arranged on the frame, one end of the air duct is connected to the air outlet end of the blower, and the other end of the air duct is connected to the powder distribution tube. The lower end of the powder bin is connected to the inlet of the feed pipe, and the outlet of the feed pipe extends to the interior of the air duct.

[0014] Preferably, a spiral conveying structure is installed in the feeding pipe along the axial direction. When the spiral conveying structure works at a constant rotation speed, the feeding pipe can convey the medicine powder into the air duct at a constant speed.

[0015] Preferably, the spray assembly also includes a first liquid distribution pipe, a second liquid distribution pipe, a first liquid spray pipe, and a second liquid spray pipe. There are multiple first liquid spray pipes, and the multiple first liquid spray pipes are horizontally arranged on the frame and have different heights. The liquid spray end of the second liquid spray pipe is arranged in the accommodating space, and the first liquid spray pipe and the second liquid spray pipe are supplied with liquid through the first liquid distribution pipe and the second liquid distribution pipe, respectively.

[0016] Preferably, the spray assembly further comprises a first liquid medicine tank arranged on the frame, and the first liquid medicine tank is connected to a first liquid distribution pipe and a second liquid distribution pipe through a first infusion pump and a second infusion pump respectively.

[0017] Preferably, the spray assembly also includes a second medicine liquid tank and a third infusion pump, both of which are arranged at the lower end of the frame. The second medicine liquid tank is connected to a third liquid distribution pipe through the third infusion pump. The nozzle of the third liquid distribution pipe faces the ground and when the frame is towed, the lower end of the nozzle of the third liquid distribution pipe is higher than the ground.

[0018] Preferably, the powder can be sprayed from the powder outlet of the powder distribution pipe to the inner wall of the medicine application box, and then evenly distributed in the soil layer at the depth of the medicine application box through the flushing of the liquid from the spray end of the second spray pipe, wherein the liquid outlet of the second spray pipe faces the inner wall of the medicine application box below the powder outlet, so that the liquid sprayed from the second spray pipe can accurately flush the powder sprayed from the powder outlet into the soil layer.

[0019] Preferably, the connecting assembly includes a first connecting rod and a second connecting rod arranged in parallel, the first connecting rod and the second connecting rod are arranged alternately with a cross bar arranged therebetween, the cross bar corresponds one-to-one with the first spray pipe, and the front ends of the first connecting rod, the second connecting rod and the cross bar are all provided with inclined surfaces.

[0020] A soil improvement method provided by the present invention comprises the following steps:

[0021] S1: Prepare soil conditioner A1 and add it to the first liquid medicine tank. Soil conditioner A1 is obtained by uniformly mixing the following parts by weight:

[0022] Humic acid 3-5 parts;

[0023] 2-3 parts of activated carbon;

[0024] 1-2 parts of slow-release fertilizer;

[0025] 20-30 parts water;

[0026] Prepare soil conditioner A2 and add it into the second liquid medicine tank. Soil conditioner A2 is obtained by uniformly mixing the following parts by weight:

[0027] Humic acid 5-8 parts;

[0028] 2-3 parts of activated carbon;

[0029] 10-20 parts of compound fertilizer;

[0030] Mixed bacterial agent 0.2-0.5 parts;

[0031] 20-30 parts water;

[0032] Prepare soil conditioner B and add it to the powder bin: Soil conditioner B is obtained by uniformly mixing the following parts by weight:

[0033] 1-2 parts of sepiolite powder;

[0034] Polyacrylamide 5-10 parts;

[0035] 1 to 3 parts of fine sand.

[0036] S2: ploughing the field to be improved to a depth of 40 to 50 cm, digging a pit in the field to be improved for placing the pesticide application box, placing the pesticide application box of the soil improvement device into the pit, and using the soil improvement device to apply pesticides in the field;

[0037] S3: 1 to 2 hours after application of the drug, water the field to keep the soil moisture content at 80±2% of the maximum field water holding capacity, cover the soil after application of the drug and let it stand for 3 to 5 days.

[0038] Compared with the prior art, the present invention has the following beneficial effects:

[0039] 1. The present invention arranges the connection components obliquely at the rear of the frame, fixes and connects the application box at the bottom of the connection components, and evenly arranges a plurality of horizontal spray pipes between the connection components along the height direction. When the frame moves forward under the traction of the traction device, the connection components and the application box evenly spread the agent in the plowed soil layer, and the agent in each layer of soil slowly seeps down, so that the agent can be evenly distributed in the soil.

[0040] 2. The present invention uses a blower and an air supply duct to blow soil improvement powder into the application box. When the application box moves in the soil, it can evenly spread a layer of improvement powder into the soil along the moving path. The improvement powder layer can form a stable water-retaining layer in the stratum, so that the water in the soil and the infiltrated drug solution are retained in the improvement powder layer, effectively avoiding the infiltration of the drug solution or irrigation water, and effectively improving the soil improvement effect.

[0041] 3. The present invention connects the pressure frame structure by rotation on the connecting rod, and connects the buffer assembly between the pressure frame and the frame. The pressure roller rotatably connected to the bottom end of the pressure frame contacts the ground. During the movement of the frame, the pressure roller plays a good supporting role for the frame, which is beneficial to keep the top surface of the frame level.

[0042] 4. The present invention connects a cross bar between the connecting rods, sets the horizontally arranged liquid spray pipe behind the cross bar, and sets the air duct and the liquid distribution pipe behind the connecting rod structure, so that the cross bar and the side of the connecting rod facing the forward direction are both provided with an inclined surface for breaking the soil, which effectively reduces the dragging resistance of the device in the soil layer.

[0043] 5. The present invention sets the side of the medicine application box facing the forward direction as an arc-shaped inclined surface, which effectively reduces the resistance when the medicine application box is dragged, and enables the medicine application box to be affected by the pressure of the soil layer during the dragging process, and it is not easy for the medicine application box to move up and down in the soil layer, which effectively improves the stability of the agent spreading process and further makes the agent evenly distributed in the soil.

[0044] 6. The present invention sets a horizontal liquid spray pipe in the medicine application box. After the powder blown out from the air duct enters the powder distribution pipe, it is evenly distributed along the axial direction of the powder distribution pipe and falls into the medicine application box. When the medicine application box moves forward in the soil layer, the powder in the medicine application box is washed into the soil layer behind by the liquid sprayed from the liquid spray pipe. Before the soil on the cavity formed by the movement of the medicine application box falls, the powder and the liquid can be evenly distributed in the soil layer at that depth, forming a mixed layer of improved powder and improved liquid in the soil layer at that depth. BRIEF DESCRIPTION OF THE DRAWINGS

[0045] Other features, objects and advantages of the present invention will become more apparent from the detailed description of non-limiting embodiments made with reference to the following drawings:

[0046] Figure 1 A perspective view of the present invention;

[0047] Figure 2 Another perspective perspective diagram of the present invention;

[0048] Figure 3 is a side view of the present invention;

[0049] Figure 4 It is a three-dimensional diagram of the framework of the present invention;

[0050] Figure 5 for Figure 4 A magnified view of middle;

[0051] Figure 6 It is a schematic diagram of the three-dimensional structure of the oblique upward viewing angle frame;

[0052] Figure 7 for Figure 6 Enlarged view of middle B;

[0053] Figure 8 This is a schematic diagram of the layout structure of the liquid spray pipeline;

[0054] Fig. 9 is a three-dimensional diagram of the first liquid distribution pipeline;

[0055] Fig.10 This is a three-dimensional diagram of the second liquid distribution pipeline.

[0056] The figure shows:

[0057] 1. Framework;

[0058] 2. First connecting rod;

[0059] 3. Second connecting rod;

[0060] 4. Horizontal bar;

[0061] 5. Application box;

[0062] 6. Press the frame;

[0063] 7. Pressing roller;

[0064] 8. Buffer column;

[0065] 9. Slider;

[0066] 10. Blower;

[0067] 11. Air duct;

[0068] 1101, powder distribution tube;

[0069] 1102. Export of medicinal powder;

[0070] 12. Medicine powder warehouse;

[0071] 13. Feed pipe;

[0072] 14. The first liquid medicine warehouse;

[0073] 15. The first infusion pump;

[0074] 16. The first liquid distribution pipe;

[0075] 1601, first liquid spray pipe;

[0076] 17. Second infusion pump;

[0077] 18. Second liquid distribution pipe;

[0078] 1801, second liquid spray pipe;

[0079] 19. The second liquid medicine tank;

[0080] 20. The third infusion pump;

[0081] 21. The third liquid distribution pipe. DETAILED DESCRIPTION

[0082] The present invention is described in detail below in conjunction with specific embodiments. The following embodiments will help those skilled in the art to further understand the present invention, but are not intended to limit the present invention in any form. It should be noted that, for those of ordinary skill in the art, several changes and improvements can also be made without departing from the concept of the present invention. These all belong to the protection scope of the present invention.

[0083] Embodiment 1:

[0084] The present invention provides a soil improvement device, comprising a frame 1, a traction device, a medicine application box 5 and a spraying assembly, wherein the traction device is connected to the front end of the frame 1; the medicine application box 5 is connected to the rear end of the frame 1 through a connecting assembly; the spraying assembly can spray at the bottom of the frame 1, on the connecting assembly and inside the medicine application box 5. When the frame 1 is pulled forward by the traction device, the spraying outlet at the bottom of the frame 1 is located above the ground, and the spraying outlets located on the connecting assembly and inside the medicine application box 5 are both located below the ground. Specifically, the top surface of the medicine application box 5 is an inclined surface with a low front end and a high rear end, the bottom surface is a plane, and has an opening on the side facing the rear end, and the medicine liquid and powder sprayed from the inside of the medicine application box 5 can enter the soil through the opening.

[0085] The spraying assembly includes a blower 10, an air duct 11, a powder distribution pipe 1101, a powder bin 12, a first liquid distribution pipe 16, a second liquid distribution pipe 18, a first liquid spray pipe 1601, a second liquid spray pipe 1801 and a first liquid bin 14 arranged on the frame 1. The interior of the drug application box 5 has a accommodating space, the powder distribution pipe 1101 is arranged in the accommodating space, the blower 10 and the powder bin 12 are both arranged on the frame 1, one end of the air duct 11 is connected to the air outlet end of the blower 10, and the other end of the air duct 11 is connected to the powder distribution pipe 1101, the lower end of the powder bin 12 is connected to the inlet of the feed pipe 13, and the outlet of the feed pipe 13 extends to the interior of the air duct 11, and the feed pipe 13 is connected to the outlet of the air duct 11. A spiral conveying structure is axially installed in the feed pipe 13. When the spiral conveying structure works at a constant speed, the feed pipe 13 can convey medicine powder into the air duct 11 at a constant speed. There are multiple first spray pipes 1601, and the multiple first spray pipes 1601 are horizontally arranged on the frame 1 and have different heights. The spray end of the second spray pipe 1801 is arranged in the accommodating space. The first spray pipe 1601 and the second spray pipe 1801 are supplied with liquid through the first liquid distribution pipe 16 and the second liquid distribution pipe 18 respectively. The first liquid medicine tank 14 is connected to the first liquid distribution pipe 16 and the second liquid distribution pipe 18 through the first infusion pump 15 and the second infusion pump 17 respectively.

[0086] Furthermore, the powder can be sprayed from the powder outlet 1102 of the powder distribution tube 1101 to the inner wall of the medicine application box 5, and then evenly spread in the soil layer at the depth of the medicine application box 5 through the liquid spraying end of the second spray tube 1801, wherein the liquid outlet of the second spray tube 1801 is toward the inner wall of the medicine application box 5 below the powder outlet 1102, so that the liquid sprayed from the second spray tube 1801 can accurately flush the powder sprayed from the powder outlet 1102 into the soil layer.

[0087] The spray assembly also includes a second medicine liquid tank 19 and a third infusion pump 20, both of which are arranged at the lower end of the frame 1. The second medicine liquid tank 19 is connected to a third liquid distribution pipe 21 through the third infusion pump 20. The nozzle of the third liquid distribution pipe 21 faces the ground and when the frame 1 is towed, the lower end of the nozzle of the third liquid distribution pipe 21 is higher than the ground.

[0088] The present invention also provides a soil improvement method, comprising the following steps:

[0089] S1: Prepare soil conditioner A1 and add it into the first liquid medicine tank 14. The soil conditioner A1 is obtained by uniformly mixing the following parts by weight:

[0090] Humic acid 3-5 parts;

[0091] 2-3 parts of activated carbon;

[0092] 1-2 parts of slow-release fertilizer;

[0093] 20-30 parts water;

[0094] The soil conditioner A2 is prepared and added into the second liquid medicine tank 19. The soil conditioner A2 is obtained by uniformly mixing the following parts by weight:

[0095] Humic acid 5-8 parts;

[0096] 2-3 parts of activated carbon;

[0097] 10-20 parts of compound fertilizer;

[0098] Mixed bacterial agent 0.2-0.5 parts;

[0099] 20-30 parts water;

[0100] Prepare soil conditioner B and add it into the powder bin 12: Soil conditioner B is obtained by uniformly mixing the following parts by weight:

[0101] 1-2 parts of sepiolite powder;

[0102] Polyacrylamide 5-10 parts;

[0103] 1 to 3 parts of fine sand.

[0104] S2: ploughing the field to be improved to a depth of 40 to 50 cm, digging a pit for placing the pesticide application box 5 in the field to be improved, placing the pesticide application box 5 of the soil improvement device in the pit, and using the soil improvement device to apply pesticides in the field;

[0105] S3: 1 to 2 hours after application of the drug, water the field to keep the soil moisture content at 80±2% of the maximum field water holding capacity, cover the soil after application of the drug and let it stand for 3 to 5 days.

[0106] Embodiment 2:

[0107] This embodiment is a preferred example of embodiment 1. Figure 1-10 As shown, the front end of the frame 1 is used to connect the traction equipment. Specifically, the front end of the frame 1 is equipped with a mounting port for connecting the traction equipment. The traction equipment can be an agricultural tractor, etc. The rear end of the frame 1 is obliquely connected to a connecting assembly, which includes a first connecting rod 2 and a second connecting rod 3. The bottom ends of the first connecting rod 2 and the second connecting rod 3 are connected to a horizontal application box 5. Specifically, the bottom surface of the application box 5 is a plane, and the top surface is an arc-shaped inclined surface, which can effectively break the soil and maintain a constant soil layer depth. Spraying assemblies are arranged between the first connecting rod 2 and the second connecting rod 3 at intervals in the height direction. The spraying assemblies arranged at intervals in the height direction are parallel to each other and are all in a horizontal state. The liquid medicine sprayed from the spraying assembly can be evenly distributed in each layer of the soil under the condition of natural infiltration. The spraying assembly is arranged in the application box 5, and the frame 1 is also connected to a spraying assembly facing the ground.

[0108] like Figures 3 to 10 As shown, the first connecting rod 2 is installed with an air duct 11, a first liquid distribution pipe 16, and a second liquid distribution pipe 18 along its own length direction on the side close to the forward direction of the frame 1. The air duct 11 is used to transport powder, and the first liquid distribution pipe 16 and the second liquid distribution pipe 18 are used to transport liquid medicine. The medicine application box 5 is provided with an opening away from the forward direction of the frame, and is connected with a powder distribution pipe 1101 and a second liquid spray pipe 1801 along the length direction. When the frame 1 is moving, the medicine application box 5 is provided with an opening on one side to form a cavity, that is, a accommodating space. Since the first connecting rod 2 and the second connecting rod 3 break the soil in the vertical direction to form a vertical air guide channel, the gas in the air duct 11 can smoothly be sprayed out from the powder outlet 1102 with the powder.

[0109] like Figures 4 to 10 As shown, the bottom ends of the air duct 11 and the second liquid distribution pipe 18 both extend into the medicine application box 5 and are respectively connected to the powder distribution pipe 1101 and the second liquid spray pipe 1801. The first liquid distribution pipe 16 is connected to multiple first liquid spray pipes 1601 located at different heights. The top first liquid spray pipe 1601 is located below the ground surface. The first liquid spray pipe 1601 located in the middle layer of soil below the ground surface can evenly distribute the liquid medicine in the soil layer during the movement of the frame 1, and the liquid medicine sprayed by the second liquid spray pipe 1801 is used to flush the powder sprayed by the powder distribution pipe 1101 into the soil layer, so that the powder and the liquid medicine can be fully mixed and evenly distributed in the soil layer at the depth where the medicine application box 5 is located.

[0110] like Figure 2 to Figure 7As shown, a medicine powder bin 12 is installed on the frame 1, the top of the air duct 11 is connected to the air outlet end of the blower 10 arranged on the frame 1, and a feeding pipe 13 extending into the air duct 11 is installed at the bottom of the medicine powder bin 12. Specifically, a spiral conveying structure is axially installed in the feeding pipe 13. When the spiral conveying structure works at a constant speed, the feeding pipe 13 can convey medicine powder into the air duct 11 at a constant speed. A first medicine liquid bin 14 is installed on the frame 1, and the first medicine liquid bin 14 is respectively connected to a first infusion pump 15, The second infusion pump 17, the output end of the first infusion pump 15 is connected to the upper part of the first liquid distribution pipe 16, the output end of the second infusion pump 17 is connected to the upper part of the second liquid distribution pipe 18, the powder bin 12 feeds the material into the air duct 11 at a uniform speed through the feed pipe 13, and under the action of the air flow in the air duct 11, the powder is transported along the air duct 11 and enters the powder distribution pipe 1101, and finally blows to the bottom surface of the inner wall of the medicine application box 5, and the liquid in the first liquid bin 14 is transported along the first liquid distribution pipe 16 and the second liquid distribution pipe 18 respectively through the pumping assembly.

[0111] like Figure 1 to Figure 5 As shown, mutually parallel cross bars 4 are connected between the first connecting rod 2 and the second connecting rod 3. Specifically, two first connecting rods 2 are provided, and three second connecting rods 3 are provided. The first connecting rod 2 is provided between the second connecting rods 3, and the intervals with the adjacent second connecting rods 3 are equal. Specifically, the top end of the second connecting rod 3 is fixedly connected to the edge of the frame 1, and the bottom end is fixedly connected to the edge of the application box 5. The connection structure between the frame 1 and the application box 5 enables the application box 5 to move stably in the soil layer when the frame 1 moves. The cross bar 4 corresponds to the first spray pipe 1601 one by one, and is located at one end of the first spray pipe 1601 facing the forward direction of the frame 1. The cross bar 4, the first connecting rod 2 and the second connecting rod 3 are all provided with an inclined surface for reducing resistance on the side facing the forward direction of the frame 1, which effectively reduces the resistance of the device being towed, and can also effectively protect the pipeline structure located in the soil layer.

[0112] like Figure 3 to Figure 6As shown, the bottom end of the frame 1 is fixedly connected to a second medicine liquid tank 19, and a third infusion pump 20 is fixedly installed below the second medicine liquid tank 19. The output end of the third infusion pump 20 is connected to a third liquid distribution pipe 21, and the nozzle of the third liquid distribution pipe 21 is arranged toward the ground. Specifically, the nozzle of the third liquid distribution pipe 21 is arranged toward the ground and close to the ground, which can minimize the influence of external airflow on the medicine liquid after the third liquid distribution pipe 21 sprays the medicine liquid, so that the medicine liquid can be accurately sprayed onto the soil below the frame 1. The third liquid distribution pipe 21 does not It is in contact with the ground and is closer to the forward direction of the frame 1 than the pressure roller 7. Specifically, the third liquid distribution pipe 21 is arranged at both the front and rear ends of the second liquid medicine tank 19, and the spray heads of the two third liquid distribution pipes 21 are staggered with each other in the forward direction of the frame 1, which can further improve the uniformity of the third liquid distribution pipe 21 in spreading the liquid medicine to the soil layer. The liquid medicine in the second liquid medicine tank 19 is applied to the surface soil of the ground through the pumping assembly and the spraying of the third liquid distribution pipe 21, and the surface soil of the field is soaked through the natural infiltration of the liquid medicine.

[0113] like Figure 6-7 As shown, the position of the second liquid spray pipe 1801 in the medicine application box 5 is closer to the forward direction of the frame 1 than the powder distribution pipe 1101, and the powder distribution pipe 1101 is provided with a powder outlet 1102 on the bottom surface of the inner wall of the medicine application box 5. Specifically, the powder can be sprayed from the powder outlet 1102 to the inner wall of the medicine application box 5, and then evenly spread in the soil layer at the depth of the medicine application box 5 after being flushed with the liquid medicine. The liquid outlet of the second liquid spray pipe 1801 faces the inner wall of the medicine application box 5 below the powder outlet 1102, so that the liquid sprayed from the second liquid spray pipe 1801 can accurately flush the powder sprayed from the powder outlet 1102 into the soil layer, avoiding the accumulation of powder in the medicine application box 5. The medicine application box 5 is provided with a flange on the top of one open end away from the forward direction, and the flange structure on the top of the medicine application box 5 can effectively prevent the soil above the medicine application box 5 from falling into the inside of the medicine application box 5 when the frame 1 stops moving.

[0114] This embodiment provides an environmentally friendly soil improvement method using a soil conditioner, comprising the following steps:

[0115] S1: Prepare soil conditioner A1: Evenly mix the following weight parts: 3 parts of humic acid, 2 parts of activated carbon, 2 parts of slow-release fertilizer, and 20 parts of water. Specifically, soil conditioner A1 is added to the first liquid medicine tank 14. The slow-release fertilizer in soil conditioner A1 can prolong the time for plants to absorb nutrients and further improve the middle soil. Soil conditioner A2: Evenly mix the following weight parts: 5 parts of humic acid, 3 parts of activated carbon, 20 parts of compound fertilizer, 0.5 parts of mixed bacterial agent, and 20 parts of water. Specifically, soil conditioner A2 is added to the second In the liquid medicine bin 19, the compound fertilizer in the soil conditioner A2 can effectively improve the fertility of the surface soil, and the bacterial flora contained in the mixed bacterial agent can also effectively improve the surface soil. The mixed bacterial agent is specifically an EM bacterial agent. Soil conditioner B: uniformly mix the following weight parts: 1 part of sepiolite powder, 5 parts of polyacrylamide, and 3 parts of fine sand. Specifically, the soil conditioner B is added to the powder bin 12 and spread in the stratum to form a stable water-retaining layer, which effectively intercepts the soil improvement liquid infiltrating in the soil layer and the subsequent irrigation water;

[0116] S2: Use a tiller to till the field to be improved, with a tillage depth of 40 cm. The tiller can break the compaction of the soil and make the soil loose, which is convenient for the subsequent soil improvement device to apply medicine. After digging a pit for placing the medicine application box in the field to be improved, the medicine application box part of the soil improvement device is placed in the pit, and the soil improvement device is towed in the field by a traction device to apply medicine. Specifically, the traction device can be a farming tractor;

[0117] S3: 1.5 hours after application of the drug, water the field to keep the soil moisture content at 80±2% of the maximum field water holding capacity, cover the soil after application of the drug and let it stand for 3 days. During the standing process, the soil conditioner B added into the soil absorbs water to form a water-retaining layer, while the soil conditioners A1 and A2 improve the middle soil and surface soil respectively.

[0118] Embodiment 3:

[0119] This embodiment is another preferred embodiment of embodiment 1. Figures 1 to 10As shown, this embodiment is different from embodiment 1 in that there are two first connecting rods 2, which are respectively connected to both sides of the frame 1, and the upper parts of the two first connecting rods 2 are rotatably connected with a pressure frame 6 at the same time, and the bottom end of the pressure frame 6 is rotatably connected with a pressure roller 7 for squeezing the ground, and a buffer column 8 is installed on the pressure frame 6. Specifically, the buffer column 8 can accumulate potential energy after being compressed, so that the pressure roller 7 is always in a state of contact with the ground, and the top of the buffer column 8 is rotatably connected with a slider 9, and the slider 9 is slidably connected to the frame 1 along the forward direction of the frame 1. The slider 9 and the frame 1 slide in cooperation to enable the buffer column 8 to be compressed. When the frame 1 is dragged, due to the resistance of the soil in the soil layer, the inclined first connecting rod 2 and the second connecting rod 3 will generate a pressure oblique to the ground. In order to reduce the pressure at the connection between the frame 1 and the traction equipment, the pressure frame 6 and the pressure roller 7 structure are rotatably connected at the upper part of the first connecting rod 2 to provide support for the first connecting rod 2.

[0120] like Figures 1 to 7 As shown, the positions where the bottom ends of the first connecting rod 2 and the second connecting rod 3 are connected to the medicine application box 5 are connected with reinforcing ribs, and the side of the medicine application box 5 facing the forward direction is a curved surface for reducing resistance, which effectively enhances the stability of the first connecting rod 2 and the second connecting rod 3 connecting the medicine application box 5, and the curved surface of the medicine application box 5 can effectively reduce the resistance of the medicine application box 5 moving in the soil layer. Furthermore, in order to ensure that the pipeline structure in the formation is not affected by the pressure generated by the soil layer during the forward movement of the frame 1, the first liquid distribution pipe 16, the second liquid distribution pipe 18, and the air duct 11 are all arranged behind the first connecting rod 2, and the first liquid spray pipe 1601 is arranged behind the cross bar 4.

[0121] This embodiment provides an environmentally friendly soil improvement method using a soil conditioner, comprising the following steps:

[0122] S1: Prepare soil conditioner A1: Evenly mix the following weight parts: 5 parts of humic acid, 3 parts of activated carbon, 1 part of slow-release fertilizer, and 30 parts of water. Soil conditioner A2: Evenly mix the following weight parts: 8 parts of humic acid, 2 parts of activated carbon, 10 parts of compound fertilizer, 0.2 parts of mixed bacterial agent, and 30 parts of water. Soil conditioner B: Evenly mix the following weight parts: 2 parts of sepiolite powder, 10 parts of polyacrylamide, and 1 part of fine sand.

[0123] S2: plowing the field to be improved with a tiller to a depth of 45 cm, digging a pit for placing the pesticide application box in the field to be improved, placing the pesticide application box of the soil improvement device into the pit, and using a traction device to pull the soil improvement device into the field for application of pesticides;

[0124] S3: 1 hour after application of the drug, water the field to keep the soil moisture content at 80±2% of the maximum field water holding capacity. Specifically, wait until the drug solution applied to the soil layer evenly penetrates the soil layer, and then water the field again to increase the field water holding capacity. Cover the soil after application of the drug and let it stand for 4 days.

[0125] Embodiment 4:

[0126] This embodiment provides an environmentally friendly soil improvement method using a soil conditioner, comprising the following steps:

[0127] S1: Prepare soil conditioner A1: Evenly mix the following weight parts: 4 parts of humic acid, 2.5 parts of activated carbon, 1.5 parts of slow-release fertilizer, and 25 parts of water; soil conditioner A2: Evenly mix the following weight parts: 6 parts of humic acid, 2.5 parts of activated carbon, 15 parts of compound fertilizer, 0.3 parts of mixed bacterial agent, and 25 parts of water; soil conditioner B: Evenly mix the following weight parts: 1.5 parts of sepiolite powder, 8 parts of polyacrylamide, and 2 parts of fine sand;

[0128] S2: plowing the field to be improved with a tiller to a depth of 50 cm, digging a pit for placing the pesticide application box in the field to be improved, placing the pesticide application box of the soil improvement device into the pit, and using a traction device to pull the soil improvement device into the field for application of pesticides;

[0129] S3: 2 hours after application of the drug, water the field to keep the soil moisture content at 80±2% of the maximum field water holding capacity. Specifically, wait until the drug solution applied to the soil layer evenly penetrates the soil layer, and then water the field again to increase the field water holding capacity. Cover the soil after application of the drug and let it stand for 5 days.

[0130] Embodiment 5:

[0131] This embodiment provides an environmentally friendly soil improvement method using a soil conditioner, comprising the following steps:

[0132] S1: Prepare soil conditioner A1: Evenly mix the following weight parts: 4.5 parts of humic acid, 2.8 parts of activated carbon, 1.8 parts of slow-release fertilizer, and 27 parts of water; soil conditioner A2: Evenly mix the following weight parts: 7 parts of humic acid, 2.6 parts of activated carbon, 17 parts of compound fertilizer, 0.4 parts of mixed bacterial agent, and 22 parts of water; soil conditioner B: Evenly mix the following weight parts: 1 part of sepiolite powder, 6 parts of polyacrylamide, and 3 parts of fine sand;

[0133] S2: plowing the field to be improved with a tiller to a depth of 42 cm, digging a pit for placing the pesticide application box in the field to be improved, placing the pesticide application box of the soil improvement device into the pit, and using a traction device to pull the soil improvement device into the field for application of pesticides;

[0134] S3: 1 hour after application of the drug, water the field to keep the soil moisture content at 80±2% of the maximum field water holding capacity. Specifically, wait until the drug solution applied to the soil layer evenly penetrates the soil layer, and then water the field again to increase the field water holding capacity. Cover the soil after application of the drug and let it stand for 4 days.

[0135] The working principle of the present invention is:

[0136] The traction equipment drags the frame 1 in the field, and the liquid medicine in the first liquid medicine tank 14 is transported through the pipeline structure to evenly penetrate the soil passed by the frame 1. After the powder medicine is sprayed into the application box 5, it is washed by the liquid medicine sprayed from the second spray pipe 1801. The powder medicine is mixed with the liquid medicine and enters the stratum where the application box 5 is located. The liquid medicine in the second liquid medicine tank 19 is transported through the pipeline structure and sprayed onto the ground. The liquid medicine penetrates downward from the surface into the surface soil, so as to achieve the purpose of evenly mixing the liquid medicine into the soil.

[0137] In the description of the present application, it should be understood that the terms "up", "down", "front", "back", "left", "right", "vertical", "horizontal", "top", "bottom", "inside", "outside", etc., indicating orientations or positional relationships, are based on the orientations or positional relationships shown in the accompanying drawings, and are only for the convenience of describing the present application and simplifying the description, and do not indicate or imply that the referred device or element must have a specific orientation, be constructed and operated in a specific orientation, and therefore should not be understood as a limitation on the present application.

[0138] The above describes the specific embodiments of the present invention. It should be understood that the present invention is not limited to the above specific embodiments, and those skilled in the art can make various changes or modifications within the scope of the claims, which does not affect the essence of the present invention. In the absence of conflict, the embodiments of the present application and the features in the embodiments can be combined with each other arbitrarily.

Claims

1. A soil improvement device, characterized in that: include: Frame (1); A traction device connected to the front end of the frame (1); A drug application box (5) connected to the rear end of the frame (1) via a connecting assembly; A spraying assembly capable of spraying at the bottom of the frame (1), on the connecting assembly, and inside the drug application box (5); When the frame (1) is towed forward by the towing device, the spraying outlet at the bottom of the frame (1) is located above the ground, and the spraying outlets located on the connecting assembly and inside the pesticide application box (5) are both located below the ground; The spraying assembly comprises a blower (10), an air duct (11), a powder distribution pipe (1101), a powder bin (12), a first liquid distribution pipe (16), a second liquid distribution pipe (18), a first liquid spray pipe (1601), and a second liquid spray pipe (1801); the inside of the drug application box (5) has a storage space, the powder distribution pipe (1101) is arranged in the storage space, the blower (10) and the powder bin (12) are both arranged on the frame (1); one end of the air duct (11) is connected to the air outlet end of the blower (10), and the other end of the air duct (11) is connected to the powder distribution pipe (1101); the lower end of the powder bin (12) is connected to the inlet of the material delivery pipe (13), and the outlet of the material delivery pipe (13) extends to the inside of the air duct (11); There are a plurality of first liquid spraying pipes (1601), and the plurality of first liquid spraying pipes (1601) are horizontally arranged on the frame (1) and have different heights; a liquid spraying end of the second liquid spraying pipe (1801) is arranged in the accommodation space; the first liquid spraying pipe (1601) and the second liquid spraying pipe (1801) supply liquid through the first liquid distribution pipe (16) and the second liquid distribution pipe (18), respectively; The spray assembly further comprises a first liquid medicine tank (14) arranged on the frame (1), wherein the first liquid medicine tank (14) is connected to a first liquid distribution pipe (16) and a second liquid distribution pipe (18) via a first infusion pump (15) and a second infusion pump (17), respectively; The powder can be sprayed from the powder outlet (1102) of the powder distribution tube (1101) to the inner wall of the medicine application box (5), and then evenly dispersed in the soil layer at the depth of the medicine application box (5) through the flushing of the liquid medicine at the spray end of the second liquid spray tube (1801), wherein the liquid outlet of the second liquid spray tube (1801) faces the inner wall of the medicine application box (5) below the powder outlet (1102), so that the liquid medicine sprayed from the second liquid spray tube (1801) can accurately flush the powder sprayed from the powder outlet (1102) into the soil layer.

2. The soil improvement device according to claim 1, characterized in that: The top surface of the drug application box (5) is an inclined surface with a lower front end and a higher rear end, and the bottom surface is a flat surface, and has an opening on one side facing the rear end.

3. The soil improvement device according to claim 2, characterized in that: A spiral conveying structure is installed in the conveying pipe (13) along the axial direction. When the spiral conveying structure works at a constant rotation speed, the conveying pipe (13) can convey medicine powder into the air duct (11) at a constant speed.

4. The soil improvement device according to claim 3, characterized in that: The spray assembly further comprises a second liquid medicine tank (19) and a third infusion pump (20) both arranged at the lower end of the frame (1); the second liquid medicine tank (19) is connected to a third liquid distribution pipe (21) via the third infusion pump (20); the nozzle of the third liquid distribution pipe (21) faces the ground and when the frame (1) is towed, the lower end of the nozzle of the third liquid distribution pipe (21) is above the ground.

5. The soil improvement device according to claim 4, characterized in that: The connecting assembly comprises a first connecting rod (2) and a second connecting rod (3) arranged in parallel, the first connecting rod (2) and the second connecting rod (3) being arranged alternately and a cross rod (4) being arranged between them, the cross rod (4) corresponding one to one with the first liquid spraying pipe (1601), and the front ends of the first connecting rod (2), the second connecting rod (3) and the cross rod (4) are all provided with inclined surfaces.

6. A soil improvement method, characterized in that: The soil improvement device according to claim 5 comprises the following steps: S1: Prepare soil conditioner A1 and add it into the first liquid medicine tank (14). The soil conditioner A1 is obtained by uniformly mixing the following parts by weight: 3-5 parts of humic acid; 2-3 parts of activated carbon; 1-2 parts of slow-release fertilizer; 20-30 parts water; A soil conditioner A2 is prepared and added into the second liquid medicine tank (19), wherein the soil conditioner A2 is obtained by uniformly mixing the following parts by weight; Humic acid 5-8 parts; 2-3 parts of activated carbon; 10-20 parts of compound fertilizer; Mixed bacterial agent 0.2-0.5 parts; 20-30 parts water; Prepare soil conditioner B and add it to the medicine powder bin (12): Soil conditioner B is obtained by uniformly mixing the following parts by weight: 1-2 parts of sepiolite powder; Polyacrylamide 5-10 parts; 1 to 3 parts of fine sand; S2: plowing the field to be improved to a depth of 40 to 50 cm, digging a pit in the field to be improved for placing the pesticide application box (5), placing the pesticide application box (5) of the soil improvement device partially into the pit, and using the soil improvement device to apply pesticides in the field; S3: 1 to 2 hours after application of the drug, water the field to keep the soil moisture content at 80±2% of the maximum field water holding capacity, cover the soil after application of the drug and let it stand for 3 to 5 days.

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