Soil property improving device for land improvement

Abstract

A soil property improving device for land improvement relates to the technical field of soil improvement and comprises a movably arranged supporting base, a plurality of improving substance adding mechanisms are horizontally arranged on the top of the supporting base side by side, a refining assembly is arranged above the supporting base, and the refining assembly is fixedly communicated with the plurality of improving substance adding mechanisms. A leveling assembly is arranged at the position, below the improved substance adding mechanism, of the bottom of the supporting base, and a traction assembly is fixedly arranged at the top of the supporting base. The improved substance adding mechanism comprises a fixed hopper, a connecting pipe, a connecting hopper and a fixed pipe which are fixedly communicated in sequence from top to bottom, a lower port of the fixed pipe penetrates through the supporting base and is fixedly connected with the supporting base, and an upper port of the fixed hopper is sealed. The problem that an existing soil improvement device is poor in continuous operability in the soil improvement process is solved; the problem that substances are not uniformly distributed in the soil is solved; and the problem of poor adjustability of the feeding amount of the improved substance is solved. And the soil refining degree is poor.

Description

Technical Field

[0001] The present invention relates to the technical field of soil improvement, in particular to a soil property improvement device for land improvement. Background Art

[0002] Soil improvement refers to a series of technical measures that use theories and technologies from multiple disciplines such as soil science, biology, and ecology to eliminate or prevent adverse factors that affect crop growth and cause soil degradation, improve soil properties, increase soil fertility, and create good soil environmental conditions for crops. The soil improvement process is divided into two stages: ① Soil conservation stage, taking engineering or biological measures to control soil loss within the allowable loss range. ② Soil improvement stage, the purpose of which is to increase soil organic matter and nutrient content, improve soil properties, and increase soil fertility.

[0003] The basic approaches to soil improvement include (in the order of soil treatment): (1) soil rotary tillage, such as using a rotary tiller to break the plow bottom layer, restore the soil tillage structure, and refine the soil; (2) biological soil improvement, using biological soil conditioners to increase soil organic matter to improve soil fertility; (3) chemical soil improvement, such as applying gypsum, phosphogypsum, etc. to alkaline soil, and applying calcareous substances to acidic soil to adjust the pH value of the soil. (4) engineering soil improvement, such as using a field leveler to level the soil and improve soil conditions. Each soil improvement process requires the use of a corresponding soil improvement device to operate.

[0004] The existing soil improvement devices gradually exposed their shortcomings during use, mainly in the following aspects: First, the poor continuity between soil improvement processes leads to low soil improvement efficiency. Specifically, after the soil tillage is completed, the operator needs to use three types of improvement equipment in succession to carry out biological, chemical and engineering improvements on the soil respectively. Replacing different improvement equipment is not only cumbersome to operate, but also requires three soil improvement operations. Therefore, the poor continuity between soil improvement processes leads to low soil improvement efficiency.

[0005] Second, during the biological and chemical improvement processes, the improved substances are unevenly distributed in the soil, affecting the soil improvement effect. Specifically, when biologically improving the soil, workers need to spray the biological soil improver on the surface of the soil. The biological soil improver needs to penetrate downward to contact the underlying soil. Similarly, when chemically improving the soil, workers need to sprinkle acidic (alkaline) substances on the surface of the soil. The underlying soil cannot effectively contact the acidic (alkaline) substances. Therefore, during the biological and chemical improvement processes, the improved substances are unevenly distributed in the soil, affecting the soil improvement effect.

[0006] Third, during the biological and chemical improvement processes, the amount of improvement substances added is poorly regulated, resulting in poor soil improvement effects. Specifically, the amount of soil tilled by rotary tillers in different regions is different. When the soil is biologically or chemically improved, the improvement equipment can only add a certain amount of improvement substances to the soil. The amount of improvement substances added and the amount of soil cannot reach an effective ratio, resulting in poor soil improvement effects.

[0007] Fourth, the soil is poorly refined, and the improved materials are not in sufficient contact with the soil, which affects the soil improvement effect. Specifically, the soil has a larger particle size after being tilled by a rotary tiller, and the improved materials have poor contact with the soil, thus affecting the soil improvement effect.

[0008] In summary, the prior art obviously has inconveniences and defects in practical use, so it is necessary to improve it. Summary of the invention

[0009] In view of the defects in the prior art, the technical problem to be solved by the present invention is to provide a soil property improvement device for land improvement, which has high continuous operability during soil improvement and can realize biological improvement, chemical improvement and engineering improvement by performing only one improvement operation on the soil after rotary tillage, thereby greatly improving the soil improvement efficiency; The device can also achieve uniform distribution of the improved material in the soil, improve the uniformity of distribution of the improved material in the soil, and improve the soil improvement effect; The device can also adjust the amount of improved material in real time according to the amount of soil, so that the amount of improved material and the amount of soil are always kept in the correct ratio, thus improving the soil improvement effect; The device can also improve the refinement of the soil, allowing the improved material to fully contact the soil, further improving the soil improvement effect.

[0010] To solve the above problems, the present invention provides the following technical solutions: A soil property improvement device for land improvement, comprising a movably arranged support base, a plurality of improvement material adding mechanisms horizontally arranged in parallel on the top of the support base, a refinement component arranged above the support base, the refinement component being fixedly connected to the plurality of improvement material adding mechanisms, a leveling component arranged at the bottom of the support base below the improvement material adding mechanisms, and a traction component fixedly arranged on the top of the support base; The improved material adding mechanism includes a fixed bucket, a connecting pipe, a connecting bucket and a fixed pipe which are fixedly connected in sequence from top to bottom, the lower port of the fixed pipe passes through a supporting base and is fixedly connected to the supporting base, the upper port of the fixed bucket is sealed, a rotatable transmission shaft is coaxially arranged on the top of the fixed bucket, the bottom of the transmission shaft passes through the fixed bucket, the connecting pipe and the connecting bucket in sequence downward and extends into the fixed pipe, a spiral blade is fixedly arranged at a position of the outer wall of the transmission shaft in the connecting pipe, a plurality of shattering pieces are evenly distributed along the circumferential direction at a position of the outer wall of the transmission shaft in the connecting bucket, one end of the shattering piece is inclined downward, The upper outer wall of the fixed tube is uniformly distributed along the circumferential direction with a plurality of fixed cylinders with openings at the bottom, the lower inner wall of the fixed cylinder is coaxially provided with a rotating circular plate that is rotatably arranged, the inner wall of the fixed cylinder is coaxially fixed with a fixed circular plate at a position above the rotating circular plate, the bottom of the fixed circular plate is coaxially fixed with an inner support tube, the bottom of the inner support tube is frictionally abutted against the rotating circular plate, the top of the rotating circular plate is located between the inner support tube and the fixed cylinder and is uniformly distributed along the circumferential direction with a plurality of vertically fixed partitions, the top and opposite ends of the partitions are frictionally abutted against the fixed circular plate, the inner support tube and the fixed cylinder correspondingly, a leakage groove is penetrated through the position of the fixed circular plate at the bottom between the inner support tube and the fixed cylinder, and the outer wall of the fixed cylinder is fixed at a position between the fixed circular plate and the rotating circular plate A spray pipe connected to its inner cavity is fixedly provided, one end of the spray pipe is fixedly connected to the inner cavity of the fixed tube, the upper outer wall of the fixed cylinder is fixedly connected to the fixed bucket, the bottom of the fixed circular plate is located in the inner support tube and is coaxially fixed with an inner cylinder with a sealed bottom, the bottom of the fixed circular plate is located in the inner support tube and is fixedly provided with a fixed air box, the bottoms of the fixed air box and the inner cylinder are both frictionally abutted against the rotating circular plate, one end of the fixed air box extends through the inner support tube to the outside and is flush with the outer wall of the inner support tube, the arcuate end of the fixed air box is directly opposite to the other end of the spray pipe, and a number of jet holes connected to its inner cavity are evenly distributed vertically on the arcuate end of the fixed air box, and the inner cylinder is connected to the fixed air box through a number of connecting pipes. The top of the fixed cylinder is coaxially provided with a transmission rod which is arranged to rotate synchronously with the transmission shaft, the bottom end of the transmission rod passes downwardly through the fixed cylinder and the fixed circular plate and extends into the built-in cylinder, the transmission rod is rotatably and sealedly connected with the fixed circular plate, the lower outer wall of the transmission rod is evenly distributed along the circumferential direction with a plurality of stirring blades which are in frictional contact with the top of the fixed circular plate, the outer wall of the fixed tube is fixedly provided with a horizontally arranged support plate at a position below the rotating circular plate, the bottom of the support plate is vertically fixed with a fixed air pipe with a sealing bottom, the bottom of the transmission rod is coaxially fixed with a rotating air pipe, the lower port of the rotating air pipe passes downwardly through the built-in cylinder, the rotating circular plate and the support plate and extends into the fixed air pipe, the built-in cylinder and the support plate are both rotatably and sealedly connected with the rotating air pipe, the rotating circular plate is fixedly connected to the rotating air pipe, the outer wall of the rotating air pipe is located in the built-in cylinder and is evenly distributed along the circumferential direction with a plurality of exhaust grooves which are arranged through it, two adjacent fixed air pipes are connected through a ventilation pipe, an air pump is fixedly provided above the support base, and the exhaust port of the air pump is connected with one of the ventilation pipes, A biological soil conditioner adding component is arranged inside the fixed pipe below the injection pipe.

[0011] As an optimized solution, the biological soil conditioner addition component includes a support tube fixedly connected to the inner wall of the fixed tube, both ends of the support tube are sealed, the top of the support tube is provided with a material guide groove, the support tube is vertically lifted and provided with a lifting circular plate that is slidably and sealedly connected to its inner wall, the inner bottom of the support tube is evenly distributed with a plurality of vertically arranged outer vertical tubes along the circumferential direction, the top of the outer vertical tube passes upward through the lifting circular plate and is fixed to the top of the support tube, the outer vertical tube is slidably and sealedly connected to the lifting circular plate, an inner vertical tube is coaxially provided inside the outer vertical tube, the upper port of the inner vertical tube extends upward into the material guide groove and is connected to the material guide groove The bottom is flush, the lower end of the inner vertical tube extends downward through the support tube to the outside, the outer wall of the inner vertical tube is evenly distributed with a plurality of liquid passing tubes connected with its inner cavity along the axial direction, one end of the liquid passing tube passes through the outer vertical tube and extends to the outside, an atomizer is fixedly installed in the liquid passing tube, the bottom end of the transmission shaft is rotatably connected to the top of the support tube, the lower outer wall of the transmission shaft is evenly distributed with a plurality of cleaning plates in frictional contact with the inner wall of the material guide groove along the circumferential direction, the outer wall of the fixed tube is fixedly provided with a liquid inlet pipe at a position between the lifting circular plate and the inner top of the support tube, one end of the liquid inlet pipe passes through the fixed tube and the support tube and is connected with the inner cavity of the support tube; A liquid storage tank is fixedly provided on the top of the support base, and a plurality of water pumps are arranged in the liquid storage tank. The other ends of the plurality of liquid inlet pipes extend into the interior through the liquid storage tank and are fixedly connected with the drainage ports of the plurality of water pumps respectively. The air pump is fixedly installed on the top of the liquid storage tank.

[0012] As an optimized solution, the refining component includes a horizontally arranged crushing barrel, both ends of the crushing barrel are sealed, both ends of the crushing barrel are coaxially provided with a penetrating rotating tube, the rotating tube is reciprocatingly arranged, and a rotating rod is coaxially arranged in the crushing barrel, the two ends of the rotating rod respectively extend into the two rotating tubes and are correspondingly rotatably connected with the two rotating tubes, the crushing barrel is provided with arc plates at positions on both sides, the two arc plates are fixedly connected with the two rotating tubes respectively, a plurality of swing plates are evenly arranged between the two arc plates, the two ends of the swing plates are fixedly connected with the two arc plates respectively, the bottom of the swing plate is in frictional contact with the inner wall of the crushing barrel, the outer wall of the rotating rod is located between the two arc plates and is evenly provided with a plurality of crushing knives along the circumferential direction, the crushing knives avoid the swing plate, the lower outer wall of the crushing barrel is evenly provided with a plurality of discharge hoppers along its axial direction, the lower ports of the plurality of discharge hoppers are correspondingly fixedly connected with the inner cavities of the plurality of fixed hoppers, and the outer wall of the crushing barrel is located in the discharge hopper and is provided with a plurality of discharge holes arranged through it. A feed channel is provided above the support base for vertical lifting, the feed end of the feed channel extends obliquely downward, the discharge end of the feed channel extends obliquely upward and is fixedly connected with a discharge pipe, a feed trough is penetrated by the outer wall of the crushing barrel near the feed channel, a limit plate is fixedly provided on the outer wall of the crushing barrel below the feed trough, a driving roller and a driven roller rotating along a horizontal line are respectively provided at positions on both sides of the feed channel, the driving roller is connected to the driven roller through a conveyor belt, and a plurality of baffles that are in friction contact with the inner wall of the feed channel are evenly distributed on the outer surface of the conveyor belt.

[0013] As an optimized solution, the leveling assembly includes a vertically lifting rectangular lifting frame, and a plurality of vertically arranged scrapers are evenly distributed in the rectangular lifting frame along its length direction. Two adjacent scrapers are fixedly connected by a plurality of connecting rods, and the opposite ends of the scrapers are horizontally slidingly connected to the rectangular lifting frame. A horizontally arranged reciprocating telescopic cylinder is fixedly provided at the bottom of the rectangular lifting frame on both sides of the scraper, and the telescopic end of the reciprocating telescopic cylinder is fixedly connected to one of the scrapers.

[0014] As an optimized solution, an upper driving wheel is fixedly provided on the top of the transmission shaft, a support block is fixedly provided on the outer wall of the fixed bucket, the top of one of the transmission rods penetrates the support block upward and is fixedly provided with an upper driven wheel, the transmission rod is rotatably connected to the support block, the upper driving wheel is connected to the upper driven wheel through an upper transmission belt, a lower driven wheel is fixedly sleeved on the outer wall of the rotating air pipe at a position between the rotating circular plate and the support plate, and several lower driven wheels on the same fixed pipe are connected through a lower transmission belt.

[0015] As an optimized solution, two vertically arranged control telescopic cylinders are fixedly provided on the inner bottom of the support tube, and the telescopic ends of the control telescopic cylinders are fixedly connected to the lifting circular plate.

[0016] As an optimized solution, a driven gear is fixedly mounted on the outer wall of one of the rotating tubes outside the crushing barrel, and a driving gear meshing with the driven gear is rotatably mounted on the end of the crushing barrel.

[0017] As an optimized solution, a fixed U-shaped plate is fixedly provided at one end of the crushing barrel, a control motor and a servo motor are fixedly provided at the end of the fixed U-shaped plate, the output end of the control motor passes through the fixed U-shaped plate and is fixedly connected to the rotating rod, and the output end of the servo motor passes through the fixed U-shaped plate and is fixedly connected to the driving gear.

[0018] As an optimized solution, two vertically arranged driving telescopic cylinders are fixedly provided on the top of the support base, and the telescopic ends of the driving telescopic cylinders are fixedly connected to the feed channel.

[0019] As an optimized solution, four vertically arranged lifting and telescopic cylinders are fixedly provided through the top of the support base, and the telescopic ends of the four lifting and telescopic cylinders are fixedly connected to the four corners of the rectangular lifting frame.

[0020] Compared with the prior art, the present invention has the following beneficial effects: 1. When improving the soil after rotary tillage, connect the traction assembly to the agricultural tractor, drive the telescopic cylinder to drive the feed channel down until the discharge pipe and the limit plate are against each other, the discharge pipe is connected to the inner cavity of the crushing barrel, the feed end of the feed channel is inserted into the soil, and the stepper motor drives the drive roller, the conveyor belt and the baffle to rotate, and the soil is transported upward. The soil in the feed channel enters the crushing barrel through the discharge pipe, and the control motor drives the rotating rod and the crushing knife to rotate, thereby crushing the soil in the crushing barrel. The soil with qualified particle size enters the fixed bucket through the discharge hole and the discharge hopper. With the cooperation of the crushing knife and the discharge hole, the soil after rotary tillage can be crushed and refined again, so that the soil particle size is smaller and more uniform, and the degree of soil refinement is improved, so that the improved material can fully contact with the soil, thereby improving the improvement effect of the soil; 2. The driving motor drives the upper driving wheel and the transmission shaft to rotate, and then drives the spiral blades and the scattering pieces to rotate. The spiral blades can make the soil in the fixed bucket fall evenly into the connecting bucket. The scattering pieces can scatter the soil falling downward during the rotation process, so that the soil is more evenly distributed in the fixed pipe. In the process of the soil falling downward in the fixed pipe, under the drive of the upper transmission belt and the upper driven wheel, one of the transmission rods rotates synchronously with the transmission shaft, thereby driving the rotating air pipe to rotate. Under the drive of the lower driven wheel and the lower transmission belt, the remaining rotating air pipes and transmission rods on the same fixed pipe Synchronously rotate, driven by the transmission rod and the rotating air pipe, the stirring blade and the rotating circular plate rotate, and the rotating circular plate drives the partition to rotate. When the two adjacent partitions rotate to the bottom of the leakage groove, the acid (alkaline) substance in the fixed cylinder enters the area between the two partitions. When the two adjacent partitions rotate to the middle area where they overlap with the port of the injection pipe, the air pump compresses the air and transports it. The compressed air enters the built-in cylinder through the ventilation pipe, the fixed air pipe, the rotating air pipe and the exhaust groove in turn. The compressed air in the built-in cylinder enters the fixed air box through the connecting pipe and is ejected from the jet hole. Under the blowing of compressed air, the acid (alkaline) substances between the two partitions pass through the spraying pipe and are sprayed into the fixed pipe in a divergent shape and mixed with the soil in the falling process. In addition, the acid (alkaline) substances are sprayed to the soil in the fixed pipe in the falling process through multiple points, so that the acid (alkaline) substances are evenly distributed in the soil. The soil mixed with the acid (alkaline) substances in the fixed pipe continues to fall downward. Part of the soil goes directly into the inner vertical pipe, and the rest of the soil falls into the guide trough. The transmission shaft drives the cleaning plate to rotate, and then the soil in the guide trough is scraped into the inner vertical pipe, and the soil in the inner vertical pipe falls downward. During the process, the water pump transports the biological soil conditioner in the liquid storage tank, and the biological soil conditioner enters the support tube through the liquid inlet pipe. The biological soil conditioner in the support tube enters the liquid passage pipe and is atomized by the atomizing sheet and then sprayed into the inner vertical pipe to mix with the soil. The biological soil conditioner is sprayed on the soil in the process of falling into the inner vertical pipe through multiple points, so that the biological soil conditioner is evenly distributed in the soil. Therefore, the device can realize the function of evenly distributing the improved substances in the soil, improve the distribution uniformity of the improved substances in the soil, and improve the improvement effect on the soil; 3. When the amount of soil to be improved is large, the speed of the drive motor increases, the speed of the transmission shaft increases, the speed of the spiral blade guiding the soil becomes faster, and the amount of soil falling downward in the fixed pipe increases. At the same time, the speed of the transmission rod increases synchronously with the transmission shaft, and the speed of the rotating circular plate becomes faster, thereby accelerating the speed of conveying acid (alkaline) substances into the spraying pipe, thereby increasing the amount of acid (alkaline) substances released. At the same time, the telescopic cylinder is controlled to drive the lifting circular plate to slide downward, and the number of liquid pipes connected to the liquid storage tank increases, and the discharge channels of the biological soil conditioner increase, thereby increasing the amount of biological soil conditioner released, realizing the function of real-time adjustment of the amount of acid (alkaline) substances and biological soil conditioners according to the amount of soil, so that the amount of biological acid (alkaline) substances and soil conditioners and the amount of soil are always kept in the correct ratio, further improving the soil improvement effect; 4. The soil mixed with the biological soil conditioner in the inner vertical pipe falls to the ground, and the reciprocating telescopic cylinder drives the scraper to slide back and forth horizontally. The scraper can level the improved soil during the horizontal reciprocating sliding process. In summary, the device has high continuous operability when improving the soil, and can achieve biological improvement, chemical improvement and engineering improvement on the soil after rotary tillage with only one improvement operation, which greatly improves the soil improvement efficiency; 5. In the process of soil refinement, the servo motor drives the driving gear to rotate back and forth. Under the transmission of the driven gear, the rotating tube drives the arc plate and the swing plate to rotate back and forth. The soil with larger particle size at the bottom of the crushing barrel moves upward to a certain height under the scraping of the swing plate and then falls down. In the process of falling down, the soil contacts the crushing knife again and is crushed, which effectively prevents the problem of large-particle soil accumulating in the crushing barrel and causing the discharge hole to be blocked, thereby improving the practicability of the device. BRIEF DESCRIPTION OF THE DRAWINGS

[0021] In order to more clearly illustrate the specific embodiments of the present invention or the technical solutions in the prior art, the following is a brief introduction to the drawings required for the specific embodiments or the description of the prior art. In all the drawings, similar elements or parts are generally identified by similar reference numerals. In the drawings, the elements or parts are not necessarily drawn according to the actual scale.

[0022] Figure 1 It is a structural schematic diagram of the present invention; Figure 2 This is a schematic diagram of the structure of the improved substance adding mechanism of the present invention; Figure 3 It is a schematic diagram of the structure inside the fixed cylinder of the present invention; Figure 4 This is a schematic structural diagram of the top of the rotating circular plate of the present invention; Figure 5 This is a schematic diagram of the structure inside the inner support tube of the present invention; Figure 6 This is a schematic diagram of the structure of the adding component of the biological soil conditioner of the present invention; Figure 7 It is a schematic diagram of the structure inside the outer vertical pipe of the present invention; Figure 8 It is a schematic diagram of the structure inside the support tube of the present invention; Fig. 9 It is a schematic diagram of the overall structure of the present invention; Fig.10 It is a structural schematic diagram of the detailed components of the present invention; Fig.11 This is a schematic diagram of the structure inside the crushing tube of the present invention; Fig.12 It is a structural schematic diagram of the leveling assembly of the present invention; Fig.13 It is a structural schematic diagram of the bottom of the support base of the present invention.

[0023] In the figure: 1-support base; 2-leveling assembly; 3-traction assembly; 4-stepping motor; 5-refining assembly; 6-improvement material adding mechanism; 7-lower transmission belt; 8-ventilation pipe; 9-air pump; 10-fixed pipe; 11-connecting bucket; 12-connecting pipe; 13-fixed bucket; 14-driving motor; 15-upper driving wheel; 16-upper transmission belt; 17-upper driven wheel; 18-transmission shaft; 19-support block; 20-spiral blade ; 21-dispersing piece; 22-biological soil conditioner adding component; 23-inner support tube; 24-spraying tube; 25-stirring blade; 26-fixed cylinder; 27-transmission rod; 28-fixed circular plate; 29-leakage trough; 30-partition plate; 31-rotating circular plate; 32-jet hole; 33-fixed air box; 34-connecting pipe; 35-built-in cylinder; 36-rotating air pipe; 37-exhaust groove; 38-lower driven wheel; 39-support plate; 40-fixed air pipe; 41-material guide trough; 42-cleaning plate; 43-support cylinder; 44-outer vertical pipe; 45-lifting circular plate; 46-control telescopic cylinder; 47-liquid pipe; 48-atomizing sheet; 49-inner vertical pipe; 50-scraper; 51-lifting telescopic cylinder; 52-connecting rod; 53-rectangular lifting frame; 54-reciprocating telescopic cylinder; 55-driven roller; 56-baffle; 57-conveyor belt; 58-feeding channel; 59-limiting plate ;60-feeding trough;61-driving roller;62-discharging pipe;63-crushing cylinder;64-crushing knife;65-rotating rod;66-discharging hopper;67-rotating tube;68-arc plate;69-driving telescopic cylinder;70-discharging hole;71-driving gear;72-servo motor;73-control motor;74-driven gear;75-fixed U-shaped plate;76-swinging plate;77-water pump;78-liquid storage tank;79-liquid inlet pipe. DETAILED DESCRIPTION

[0024] The following embodiments of the technical solution of the present invention are described in detail in conjunction with the accompanying drawings. The following embodiments are only used to more clearly illustrate the technical solution of the present invention, and are therefore only used as examples, and cannot be used to limit the protection scope of the present invention.

[0025] like Figures 1 to 13 As shown, a soil property improvement device for land improvement comprises a movably arranged support base 1, a plurality of improved material adding mechanisms 6 are arranged horizontally and in parallel on the top of the support base 1, a refinement component 5 is arranged above the support base 1, the refinement component 5 is fixedly connected with the plurality of improved material adding mechanisms 6, a leveling component 2 is arranged at the bottom of the support base 1 below the improved material adding mechanisms 6, and a traction component 3 is fixedly arranged on the top of the support base 1; The improved material adding mechanism 6 comprises a fixed bucket 13, a connecting pipe 12, a connecting bucket 11 and a fixed pipe 10 which are fixedly connected and arranged in sequence from top to bottom. The lower end of the fixed pipe 10 passes through the supporting base 1 and is fixedly connected to the supporting base 1. The upper end of the fixed bucket 13 is sealed. A rotatable transmission shaft 18 is coaxially arranged on the top of the fixed bucket 13. The bottom of the transmission shaft 18 passes through the fixed bucket 13, the connecting pipe 12 and the connecting bucket 11 in sequence downward and extends into the fixed pipe 10. A spiral blade 20 is fixedly arranged at a position of the outer wall of the transmission shaft 18 in the connecting pipe 12. A plurality of scattering pieces 21 are evenly distributed along the circumferential direction at a position of the outer wall of the transmission shaft 18 in the connecting bucket 11. One end of the scattering piece 21 is inclined downward. A plurality of fixed cylinders 26 with openings at the bottom are uniformly distributed along the circumferential direction on the upper outer wall of the fixed tube 10, a rotating circular plate 31 is coaxially provided on the lower inner wall of the fixed cylinder 26, a fixed circular plate 28 is coaxially fixedly connected to the inner wall of the fixed cylinder 26 above the rotating circular plate 31, an inner support tube 23 is coaxially fixedly connected to the bottom of the fixed circular plate 28, the bottom of the inner support tube 23 is frictionally abutted against the rotating circular plate 31, a plurality of vertically fixed baffles 30 are uniformly distributed along the circumferential direction at a position between the inner support tube 23 and the fixed cylinder 26 at the top, the baffles 30 are frictionally abutted against the fixed circular plate 28, the inner support tube 23 and the fixed cylinder 26 at the top, a leakage groove 29 is penetrated through the position of the fixed circular plate 28 at the bottom between the inner support tube 23 and the fixed cylinder 26, the outer wall of the fixed cylinder 26 is located between the fixed circular plate 28 and the rotating circular plate 31 A spray pipe 24 connected to its inner cavity is fixedly provided, one end of the spray pipe 24 is fixedly connected to the inner cavity of the fixed tube 10, the upper outer wall of the fixed cylinder 26 is fixedly connected to the fixed bucket 13, the bottom of the fixed circular plate 28 is located in the position inside the inner support tube 23, and a built-in cylinder 35 with a sealed bottom is coaxially fixedly connected, the bottom of the fixed circular plate 28 is located in the position inside the inner support tube 23, and a fixed air box 33 is fixedly provided, the bottoms of the fixed air box 33 and the built-in cylinder 35 are both frictionally abutted against the rotating circular plate 31, one end of the fixed air box 33 extends through the inner support tube 23 to the outside and is flush with the outer wall of the inner support tube 23, the arcuate end of the fixed air box 33 is opposite to the other end of the spray pipe 24, and a plurality of jet holes 32 connected to its inner cavity are evenly distributed vertically on the arcuate end of the fixed air box 33, and the built-in cylinder 35 is connected to the fixed air box 33 through a plurality of connecting pipes 34. A transmission rod 27 is coaxially arranged on the top of the fixed cylinder 26 and is arranged to rotate synchronously with the transmission shaft 18. The bottom end of the transmission rod 27 passes downward through the fixed cylinder 26 and the fixed circular plate 28 and extends into the built-in cylinder 35. The transmission rod 27 is rotatably and sealedly connected with the fixed circular plate 28. A plurality of stirring blades 25 are uniformly distributed along the circumferential direction on the lower outer wall of the transmission rod 27 and are in frictional contact with the top of the fixed circular plate 28. A horizontally arranged support plate 39 is fixedly arranged on the outer wall of the fixed tube 10 below the rotating circular plate 31. A fixed air pipe 40 with a sealing bottom is vertically fixedly arranged at the bottom of the support plate 39. The bottom of the transmission rod 27 is provided with a fixed air pipe 40 with a sealing bottom. A rotating air pipe 36 is coaxially fixedly connected to the support base 1, and the lower end of the rotating air pipe 36 passes downward through the built-in cylinder 35, the rotating circular plate 31 and the support plate 39 and extends into the fixed air pipe 40. The built-in cylinder 35 and the support plate 39 are both rotatably sealed and connected to the rotating air pipe 36. The rotating circular plate 31 is fixedly connected to the rotating air pipe 36. The outer wall of the rotating air pipe 36 is located in the built-in cylinder 35 and is uniformly provided with a plurality of exhaust grooves 37 penetrating along the circumferential direction. Two adjacent fixed air pipes 40 are connected through a ventilation pipe 8. An air pump 9 is fixedly provided above the support base 1, and the exhaust port of the air pump 9 is connected to one of the ventilation pipes 8. A biological soil conditioner adding assembly 22 is provided inside the fixed pipe 10 below the injection pipe 24; The soil after rotary tillage can be broken and refined again by the refinement component 5, so that the soil particle size is smaller and more uniform. The refined soil enters into several fixed buckets 13, and the transmission shaft 18 drives the spiral blades 20 and the scattering pieces 21 to rotate. The spiral blades 20 can make the soil in the fixed buckets 13 fall evenly into the connecting buckets 11. The scattering pieces 21 can scatter the soil falling downward during the rotation process, so that the soil is more evenly distributed in the fixed pipe 10. In the process of the soil falling downward in the fixed pipe 10, the transmission rod 27 drives the rotating air pipe 36, the rotating circular plate 31 and the stirring blade 25 to rotate, and the rotating circular plate 31 drives the partition 30 to rotate. When two adjacent partitions 30 rotate to the bottom of the leakage trough 29, the acidic (alkaline) substances in the fixed cylinder 26 enter the area between the two partitions 30. When two adjacent partitions 30 rotate to the point where the middle area thereof overlaps with the port of the injection pipe 24, the air pump 9 compresses and transports the air, and the compressed air enters the built-in cylinder 35 through the ventilation pipe 8, the fixed air pipe 40, the rotating air pipe 36 and the exhaust groove 37 in sequence, and the compressed air in the built-in cylinder 35 enters the fixed air box 33 through the connecting pipe 34 and is ejected from the injection hole 32. Under the blowing of the compressed air, the acid (alkaline) substance between the two partitions 30 passes through the injection pipe 24 and is sprayed into the fixed pipe 10 in a divergent shape and mixed with the soil in the falling process, and the acid (alkaline) substance is sprayed into the soil in the fixed pipe 10 in the falling process through multiple points, so that the acid (alkaline) substance is evenly distributed in the soil, thereby improving the distribution uniformity of the acid (alkaline) substance in the soil and improving the soil improvement effect; When the amount of soil to be improved is large, the rotation speed of the transmission shaft 18 increases, the speed at which the spiral blades 20 guide the soil becomes faster, and the amount of soil falling downward in the fixed pipe 10 increases. At the same time, the rotation speed of the transmission rod 27 increases synchronously with the transmission shaft 18, and the rotation speed of the rotating circular plate 31 becomes faster, thereby accelerating the rate of conveying the acid (alkaline) substance into the injection pipe 24, thereby increasing the amount of acid (alkaline) substance released, and realizing the function of real-time adjustment of the amount of acid (alkaline) substance released according to the amount of soil, so that the amount of acid (alkaline) substance released and the amount of soil are always kept in the correct ratio, thereby improving the soil improvement effect.

[0026] The biological soil conditioner addition component 22 includes a support tube 43 fixedly connected to the inner wall of the fixed tube 10, both ends of the support tube 43 are sealed, a material guide groove 41 is provided at the top of the support tube 43, and a lifting circular plate 45 is provided in the support tube 43 for vertical lifting and lowering and is slidably and tightly connected to the inner wall thereof. A plurality of vertically arranged outer vertical tubes 44 are evenly distributed along the circumferential direction at the inner bottom of the support tube 43, the top of the outer vertical tube 44 passes upward through the lifting circular plate 45 and is fixedly connected to the inner top of the support tube 43, the outer vertical tube 44 is slidably and tightly connected to the lifting circular plate 45, an inner vertical tube 49 is coaxially provided in the outer vertical tube 44, the upper end of the inner vertical tube 49 extends upward into the material guide groove 41 and is flush with the bottom of the material guide groove 41, and the inner vertical tube 49 is provided with a plurality of vertically arranged outer vertical tubes 44. The lower end of the tube 49 extends downward through the support tube 43 to the outside, and a plurality of liquid passages 47 connected to its inner cavity are evenly distributed along the axial direction on the outer wall of the inner vertical tube 49, one end of which passes through the outer vertical tube 44 and extends to the outside, and an atomizer sheet 48 is fixedly installed in the liquid passage 47, the bottom end of the transmission shaft 18 is rotatably connected to the top of the support tube 43, and a plurality of cleaning plates 42 in frictional contact with the inner wall of the guide groove 41 are evenly distributed along the circumferential direction on the lower outer wall of the transmission shaft 18, and a liquid inlet pipe 79 is fixedly provided on the outer wall of the fixed tube 10 between the lifting circular plate 45 and the inner top of the support tube 43, and one end of the liquid inlet pipe 79 passes through the fixed tube 10 and the support tube 43 and is connected to the inner cavity of the support tube 43; A liquid storage tank 78 is fixedly provided on the top of the support base 1, and a plurality of water pumps 77 are provided in the liquid storage tank 78. The other ends of a plurality of liquid inlet pipes 79 extend through the liquid storage tank 78 to the inside and are fixedly connected with the drainage ports of the plurality of water pumps 77, and the air pump 9 is fixedly installed on the top of the liquid storage tank 78; The soil mixed with the acidic (alkaline) substance in the fixed tube 10 continues to fall downward, part of the soil directly enters the inner vertical tube 49, and the rest of the soil falls into the guide trough 41. The transmission shaft 18 drives the cleaning plate 42 to rotate, and then scrapes the soil in the guide trough 41 into the inner vertical tube 49. During the process of the soil in the inner vertical tube 49 falling downward, the water pump 77 transports the biological soil conditioner in the liquid storage tank 78, and the biological soil conditioner enters the support tube 43 through the liquid inlet pipe 79. The biological soil conditioner in the support tube 43 enters the liquid pipe 47 and is atomized by the atomizing sheet 48 and then sprayed into the inner vertical tube 49 to mix with the soil. The biological soil conditioner is sprayed on the soil in the process of falling into the inner vertical tube 49 at multiple points, so that the biological soil conditioner is evenly distributed in the soil, thereby improving the distribution uniformity of the biological soil conditioner in the soil and improving the soil improvement effect. When the amount of soil to be improved is large, the lifting circular plate 45 slides downward, the number of liquid pipes 47 connected to the liquid storage tank 78 increases, the discharge channel of the biological soil conditioner increases, and the amount of biological soil conditioner added is increased, thereby realizing the function of real-time adjustment of the amount of biological soil conditioner added according to the amount of soil, so that the amount of biological soil conditioner added and the amount of soil are always kept in the correct ratio, thereby improving the soil improvement effect.

[0027] The refinement assembly 5 includes a horizontally arranged crushing barrel 63, both ends of which are sealed, and both ends of the crushing barrel 63 are coaxially provided with a rotating tube 67 that is arranged to penetrate, and the rotating tube 67 is arranged to rotate back and forth, and a rotating rod 65 that is arranged to rotate is coaxially provided in the crushing barrel 63, and both ends of the rotating rod 65 extend into the two rotating tubes 67 respectively and are correspondingly connected to the two rotating tubes 67 for rotation, and the positions of the crushing barrel 63 at both sides are provided with arc plates 68, and the two arc plates 68 are fixedly connected to the two rotating tubes 67, and a plurality of arc plates 68 are evenly distributed between the two arc plates 68. The swing plate 76 has two ends fixedly connected to the two arc plates 68, and the bottom of the swing plate 76 is in frictional contact with the inner wall of the crushing cylinder 63. The outer wall of the rotating rod 65 is located between the two arc plates 68 and is evenly distributed with a plurality of crushing knives 64 along the circumferential direction. The crushing knives 64 avoid the swing plate 76. The lower outer wall of the crushing cylinder 63 is evenly distributed with a plurality of discharge hoppers 66 along its axial direction. The lower ports of the plurality of discharge hoppers 66 are fixedly connected to the inner cavities of the plurality of fixed buckets 13. The outer wall of the crushing cylinder 63 is located in the discharge hopper 66 and is provided with a plurality of discharge holes 70 that are arranged through. A feed channel 58 is vertically lifted above the support base 1, the feed end of the feed channel 58 extends obliquely downward, the discharge end of the feed channel 58 extends obliquely upward and is fixedly connected with a discharge pipe 62, a feed trough 60 is penetrated through the outer wall of the crushing cylinder 63 located near the feed channel 58, a limit plate 59 is fixedly provided on the outer wall of the crushing cylinder 63 located below the feed trough 60, a driving roller 61 and a driven roller 55 which are arranged to rotate along a horizontal line are respectively provided at positions on both sides of the inside of the feed channel 58, the driving roller 61 is connected to the driven roller 55 through a conveyor belt 57, and a plurality of baffles 56 which are in friction contact with the inner wall of the feed channel 58 are evenly distributed on the outer surface of the conveyor belt 57; When the soil after rotary tillage is refined, the feed channel 58 descends until the discharge pipe 62 abuts against the limit plate 59, the discharge pipe 62 is connected to the inner cavity of the crushing barrel 63, the feed end of the feed channel 58 is inserted into the soil, the driving roller 61 drives the conveyor belt 57 and the baffle 56 to rotate, and the soil is transported upward. The soil in the feed channel 58 enters the crushing barrel 63 through the discharge pipe 62, and the rotating rod 65 drives the crushing knife 64 to rotate, thereby crushing the soil in the crushing barrel 63. The soil with a qualified particle size enters the fixed bucket 13 through the discharge hole 70 and the discharge hopper 66. With the cooperation of the crushing knife 64 and the discharge hole 70, the degree of soil refinement can be improved, so that the improved material can fully contact with the soil, further improving the soil improvement effect; During the process of soil refinement, the rotating tube 67 drives the arc plate 68 to rotate back and forth, and then drives the swing plate 76 to rotate back and forth. The soil with larger particle size at the bottom of the crushing barrel 63 moves upward to a certain height under the scraping of the swing plate 76 and then falls downward. During the process of falling downward, the soil contacts the crushing knife 64 again and is crushed, which effectively prevents the problem of large-particle soil accumulating in the crushing barrel 63 and causing the discharge hole 70 to be blocked, thereby improving the practicability of the device.

[0028] The leveling assembly 2 includes a rectangular lifting frame 53 that is vertically lifted, and a plurality of vertically arranged scrapers 50 are evenly distributed in the rectangular lifting frame 53 along its length direction. Two adjacent scrapers 50 are fixedly connected by a plurality of connecting rods 52, and the opposite ends of the scrapers 50 are horizontally slidably connected to the rectangular lifting frame 53. The bottom of the rectangular lifting frame 53 is fixedly provided with horizontally arranged reciprocating telescopic cylinders 54 at positions on both sides of the scrapers 50, and the telescopic end of the reciprocating telescopic cylinder 54 is fixedly connected to one of the scrapers 50. The soil mixed with the biological soil conditioner in the inner vertical pipe 49 falls to the ground, and the reciprocating telescopic cylinder 54 drives the scraper 50 to slide back and forth horizontally. The scraper 50 can level the improved soil during the horizontal reciprocating sliding process. In summary, the device has high continuous operability for soil improvement, and can achieve biological improvement, chemical improvement and engineering improvement on the soil after rotary tillage with only one improvement operation, thereby greatly improving the soil improvement efficiency.

[0029] An upper driving wheel 15 is fixedly provided on the top of the transmission shaft 18, a support block 19 is fixedly provided on the outer wall of the fixed bucket 13, the top of one of the transmission rods 27 penetrates the support block 19 upward and is fixedly provided with an upper driven wheel 17, the transmission rod 27 is rotatably connected to the support block 19, the upper driving wheel 15 is connected to the upper driven wheel 17 through an upper transmission belt 16, and a lower driven wheel 38 is fixedly provided on the outer wall of the rotating air pipe 36 at a position between the rotating circular plate 31 and the support plate 39, and several lower driven wheels 38 on the same fixed pipe 10 are connected through a lower transmission belt 7.

[0030] A driving motor 14 is fixedly provided on the top of the fixed bucket 13 , and an output end of the driving motor 14 is fixedly connected to an upper driving wheel 15 .

[0031] Two vertically arranged control telescopic cylinders 46 are fixedly provided on the inner bottom of the support tube 43 , and the telescopic ends of the control telescopic cylinders 46 are fixedly connected to the lifting circular plate 45 .

[0032] A driven gear 74 is fixedly mounted on the outer wall of one of the rotating tubes 67 at a position outside the crushing barrel 63 , and a driving gear 71 meshing with the driven gear 74 is rotatably mounted on the end of the crushing barrel 63 .

[0033] A fixed U-shaped plate 75 is fixedly provided at one end of the crushing cylinder 63, and a control motor 73 and a servo motor 72 are fixedly provided at the end of the fixed U-shaped plate 75. The output end of the control motor 73 passes through the fixed U-shaped plate 75 and is fixedly connected to the rotating rod 65, and the output end of the servo motor 72 passes through the fixed U-shaped plate 75 and is fixedly connected to the driving gear 71.

[0034] Two vertically arranged driving telescopic cylinders 69 are fixedly provided on the top of the supporting base 1 , and the telescopic ends of the driving telescopic cylinders 69 are fixedly connected to the feeding channel 58 .

[0035] Both ends of the driving roller 61 and the driven roller 55 are rotatably connected to the feed channel 58 . A stepper motor 4 is fixedly provided at the end of the feed channel 58 . The output end of the stepper motor 4 passes through the feed channel 58 and is fixedly connected to the driving roller 61 .

[0036] Four vertically arranged lifting and telescopic cylinders 51 are fixedly provided on the top of the support base 1 , and the telescopic ends of the four lifting and telescopic cylinders 51 are fixedly connected to the four corners of the rectangular lifting frame 53 .

[0037] The working principle of this device is: When improving the soil after rotary tillage, the traction assembly 3 is connected to the agricultural tractor, and the telescopic cylinder 69 is driven to drive the feed channel 58 to descend until the discharge pipe 62 is against the limit plate 59, and the discharge pipe 62 is connected to the inner cavity of the crushing barrel 63, and the feed end of the feed channel 58 is inserted into the soil, and the stepper motor 4 drives the driving roller 61, the conveyor belt 57 and the baffle 56 to rotate, and the soil is transported upward, and the soil in the feed channel 58 enters the crushing barrel 63 through the discharge pipe 62, and the control motor 73 drives the rotating rod 65 and the crushing knife 64 to rotate, so as to crush the soil in the crushing barrel 63, and the soil with qualified particle size enters the fixed bucket 13 through the discharge hole 70 and the discharge hopper 66, and the soil after rotary tillage can be crushed and refined again under the cooperation of the crushing knife 64 and the discharge hole 70, so that the soil particle size is smaller and more uniform, and the degree of soil refinement is improved, so that the improved material can fully contact with the soil, thereby improving the improvement effect of the soil; The driving motor 14 drives the upper driving wheel 15 and the transmission shaft 18 to rotate, and then drives the spiral blade 20 and the scattering piece 21 to rotate. The spiral blade 20 can make the soil in the fixed bucket 13 fall evenly into the connecting bucket 11. The scattering piece 21 can scatter the soil falling downward during the rotation process, so that the soil is more evenly distributed in the fixed pipe 10. In the process of the soil falling downward in the fixed pipe 10, under the transmission of the upper transmission belt 16 and the upper driven wheel 17, one of the transmission rods 27 rotates synchronously with the transmission shaft 18, thereby driving the rotating air pipe 36 to rotate. Under the transmission of the lower driven wheel 38 and the lower transmission belt 7, the remaining rotating air pipes on the same fixed pipe 10 36 and the transmission rod 27 rotate synchronously. Driven by the transmission rod 27 and the rotating air pipe 36, the stirring blade 25 and the rotating circular plate 31 rotate. The rotating circular plate 31 drives the partition 30 to rotate. When the two adjacent partitions 30 rotate to the bottom of the leakage groove 29, the acid (alkaline) substance in the fixed cylinder 26 enters the area between the two partitions 30. When the two adjacent partitions 30 rotate to the middle area thereof and overlap with the port of the injection pipe 24, the air pump 9 compresses the air and transports it. The compressed air enters the built-in cylinder 35 through the ventilation pipe 8, the fixed air pipe 40, the rotating air pipe 36 and the exhaust groove 37 in turn. The compressed air in the built-in cylinder 35 enters through the connecting pipe 34 The acid (alkaline) substances between the two partitions 30 pass through the injection pipe 24 and are sprayed into the fixed pipe 10 in a divergent manner under the blowing of compressed air, and are mixed with the soil in the falling process. In addition, the acid (alkaline) substances are sprayed to the soil in the fixed pipe 10 in the falling process through multiple points, so that the acid (alkaline) substances are evenly distributed in the soil. The soil in the fixed pipe 10 mixed with the acid (alkaline) substances continues to fall downward, and part of the soil directly enters the inner vertical pipe 49, and the rest of the soil falls into the guide trough 41. The transmission shaft 18 drives the cleaning plate 42 to rotate, and then the soil in the guide trough 41 is scraped into the inner vertical pipe 49. During the process of the soil in the inner vertical pipe 49 falling downward, the water pump 77 transports the biological soil conditioner in the liquid storage tank 78, and the biological soil conditioner enters the support tube 43 through the liquid inlet pipe 79. The biological soil conditioner in the support tube 43 enters the liquid passage 47 and is atomized by the atomizing sheet 48 and then sprayed into the inner vertical pipe 49 to mix with the soil. The biological soil conditioner is sprayed on the soil in the process of falling in the inner vertical pipe 49 at multiple points, so that the biological soil conditioner is evenly distributed in the soil. Therefore, the device can realize the function of evenly distributing the improved substance in the soil, improve the distribution uniformity of the improved substance in the soil, and improve the improvement effect on the soil. When the amount of soil to be improved is large, the speed of the drive motor 14 increases, the speed of the transmission shaft 18 increases, the speed of the spiral blade 20 guiding the soil becomes faster, and the amount of soil falling downward in the fixed pipe 10 increases. At the same time, the speed of the transmission rod 27 increases synchronously with the transmission shaft 18, and the speed of the rotating circular plate 31 becomes faster, thereby accelerating the speed of conveying the acid (alkaline) substance into the injection pipe 24, thereby increasing the amount of acid (alkaline) substance delivered. At the same time, the telescopic cylinder 46 is controlled to drive the lifting circular plate 45 to slide downward, and the number of liquid pipes 47 connected to the liquid storage tank 78 increases, and the discharge channels of the biological soil conditioner increase, thereby increasing the amount of biological soil conditioner delivered, realizing the function of real-time adjustment of the amount of acid (alkaline) substance and biological soil conditioner delivered according to the amount of soil, so that the amount of biological acid (alkaline) substance and soil conditioner delivered and the amount of soil are always kept in the correct ratio, further improving the soil improvement effect; The soil mixed with the biological soil conditioner in the inner vertical pipe 49 falls to the ground, and the reciprocating telescopic cylinder 54 drives the scraper 50 to slide horizontally and reciprocatingly. The scraper 50 can level the improved soil during the horizontal reciprocating sliding process. In summary, the device has high continuous operability when improving the soil, and can achieve biological improvement, chemical improvement and engineering improvement on the soil after rotary tillage with only one improvement operation, thereby greatly improving the soil improvement efficiency; During the soil refinement process, the servo motor 72 drives the driving gear 71 to rotate reciprocatingly. Under the transmission of the driven gear 74, the rotating tube 67 drives the arc plate 68 and the swing plate 76 to rotate reciprocatingly. The soil with larger particle size at the bottom of the crushing barrel 63 moves upward to a certain height under the scraping of the swing plate 76 and then falls downward. During the process of falling downward, the soil contacts the crushing knife 64 again and is crushed, which effectively prevents the problem of large-particle soil accumulating in the crushing barrel 63 and causing the discharge hole 70 to be blocked, thereby improving the practicability of the device.

[0038] Finally, it should be noted that the above embodiments are only used to illustrate the technical solutions of the present invention, rather than to limit it. Although the present invention has been described in detail with reference to the aforementioned embodiments, those skilled in the art should understand that they can still modify the technical solutions described in the aforementioned embodiments, or replace some or all of the technical features therein by equivalents. These modifications or replacements do not make the essence of the corresponding technical solutions deviate from the scope of the technical solutions of the embodiments of the present invention, and they should all be included in the scope of the claims and specification of the present invention.

Claims

1. A soil property improvement device for land improvement, characterized in that: The invention comprises a movably arranged support base (1), a plurality of improved substance adding mechanisms (6) are arranged horizontally and in parallel on the top of the support base (1), a thinning component (5) is arranged above the support base (1), the thinning component (5) is fixedly connected to the plurality of improved substance adding mechanisms (6), a leveling component (2) is arranged at a position below the improved substance adding mechanisms (6) on the bottom of the support base (1), and a traction component (3) is fixedly arranged on the top of the support base (1); The improved substance adding mechanism (6) comprises a fixed bucket (13), a connecting pipe (12), a connecting bucket (11) and a fixed pipe (10) which are fixedly connected and arranged in sequence from top to bottom. The lower end of the fixed pipe (10) passes through the support base (1) and is fixedly connected to the support base (1). The upper end of the fixed bucket (13) is sealed. The top of the fixed bucket (13) is coaxially provided with a rotatable transmission shaft (18). The bottom of the transmission shaft (18) passes through the fixed bucket (13), the connecting pipe (12) and the connecting bucket (11) in sequence downward and extends into the fixed pipe (10). A spiral blade (20) is fixedly provided at a position of the outer wall of the transmission shaft (18) located in the connecting pipe (12). A plurality of scattering pieces (21) are evenly distributed along the circumferential direction at a position of the outer wall of the transmission shaft (18) located in the connecting bucket (11). One end of the scattering piece (21) is inclined downward. A plurality of fixed tubes (26) with openings at the bottom are evenly distributed along the circumferential direction on the upper outer wall of the fixed tube (10); a rotating circular plate (31) is coaxially provided on the lower inner wall of the fixed tube (26); a fixed circular plate (28) is coaxially fixedly connected to the inner wall of the fixed tube (26) at a position above the rotating circular plate (31); an inner support tube (23) is coaxially fixedly connected to the bottom of the fixed circular plate (28); the bottom of the inner support tube (23) is in frictional contact with the rotating circular plate (31); and the top of the rotating circular plate (31) is fixedly connected to the inner wall of the fixed tube (26). A plurality of vertically fixed partitions (30) are evenly distributed along the circumferential direction at positions between the inner support tube (23) and the fixed cylinder (26); the top and opposite ends of the partitions (30) are frictionally opposed to the fixed circular plate (28), the inner support tube (23) and the fixed cylinder (26); a material leakage groove (29) is provided through the bottom of the fixed circular plate (28) at a position between the inner support tube (23) and the fixed cylinder (26); and the outer wall of the fixed cylinder (26) is located between the fixed circular plate (28) and the rotating circular plate (31). A spray pipe (24) in communication with the inner cavity of the fixed tube (10) is fixedly provided at a position thereof, one end of the spray pipe (24) is fixedly connected to the inner cavity of the fixed tube (10), the upper outer wall of the fixed cylinder (26) is fixedly connected to the fixed bucket (13), the bottom of the fixed circular plate (28) is located in the inner support tube (23) and is coaxially fixedly connected to a built-in cylinder (35) with a sealing bottom, the bottom of the fixed circular plate (28) is located in the inner support tube (23) and is fixedly provided with a fixed air box (33), the fixed air box (33) ) and the bottom of the built-in cylinder (35) are both frictionally abutted against the rotating circular plate (31), one end of the fixed air box (33) passes through the inner support tube (23) and extends to the outside and is flush with the outer wall of the inner support tube (23), the arc-shaped end of the fixed air box (33) is directly opposite to the other end of the injection pipe (24), and the arc-shaped end of the fixed air box (33) is vertically evenly distributed with a plurality of injection holes (32) connected to its inner cavity, and the built-in cylinder (35) is connected to the fixed air box (33) through a plurality of connecting pipes (34). A transmission rod (27) is coaxially disposed on the top of the fixed cylinder (26) and is arranged to rotate synchronously with the transmission shaft (18). The bottom end of the transmission rod (27) passes downward through the fixed cylinder (26) and the fixed circular plate (28) and extends into the built-in cylinder (35). The transmission rod (27) is rotatably sealed with the fixed circular plate (28). A plurality of stirring blades (25) are uniformly distributed along the circumferential direction on the lower outer wall of the transmission rod (27) and are in frictional contact with the top of the fixed circular plate (28). A horizontally disposed support plate (39) is fixedly disposed on the outer wall of the fixed tube (10) below the rotating circular plate (31). A fixed air pipe (40) with a sealing bottom is vertically fixedly disposed on the bottom of the support plate (39). The bottom of the transmission rod (27) is coaxially disposed with the fixed cylinder (26) and the fixed circular plate (28) and is arranged to rotate synchronously with the transmission shaft (18). A rotating air pipe (36) is fixedly connected to the shaft, and a lower end of the rotating air pipe (36) passes downward through the built-in cylinder (35), the rotating circular plate (31) and the support plate (39) and extends into the fixed air pipe (40). The built-in cylinder (35) and the support plate (39) are both rotatably sealed and connected to the rotating air pipe (36). The rotating circular plate (31) is fixedly connected to the rotating air pipe (36). A plurality of exhaust grooves (37) are uniformly distributed along the circumferential direction on the outer wall of the rotating air pipe (36) located in the built-in cylinder (35). Two adjacent fixed air pipes (40) are connected via a ventilation pipe (8). An air pump (9) is fixedly provided above the support base (1), and an exhaust port of the air pump (9) is connected to one of the ventilation pipes (8). A biological soil conditioner adding assembly (22) is provided inside the fixed pipe (10) at a position below the injection pipe (24).

2. The soil property improvement device for land improvement according to claim 1, characterized in that: The biological soil improver addition component (22) comprises a support tube (43) fixedly connected to the inner wall of a fixed tube (10), both ends of the support tube (43) are sealed, a material guide groove (41) is provided at the top of the support tube (43), a lifting circular plate (45) is provided in the support tube (43) for vertical lifting and lowering and is slidably and tightly connected to the inner wall thereof, a plurality of vertically arranged outer vertical tubes (44) are evenly distributed along the circumferential direction at the inner bottom of the support tube (43), the top of the outer vertical tube (44) passes upward through the lifting circular plate (45) and is fixedly connected to the inner top of the support tube (43), the outer vertical tube (44) is slidably and tightly connected to the lifting circular plate (45), an inner vertical tube (49) is coaxially provided in the outer vertical tube (44), the upper end of the inner vertical tube (49) extends upward into the material guide groove (41) and is flush with the bottom of the material guide groove (41), and the inner vertical tube (49) is provided with a plurality of vertically arranged outer vertical tubes (44) at the inner bottom of the support tube (43), the upper end of the inner vertical tube (49) extends upward into the material guide groove (41) and is flush with the bottom of the material guide groove (41), and the inner vertical tube (49) is provided with a plurality of vertically arranged outer vertical tubes (44) at the inner bottom of the support tube (43). The lower end of the inner vertical tube (49) extends downward through the support tube (43) to the outside, and the outer wall of the inner vertical tube (49) is evenly distributed with a plurality of liquid passages (47) connected to its inner cavity along the axial direction, one end of the liquid passages (47) passes through the outer vertical tube (44) and extends to the outside, and an atomizing sheet (48) is fixedly installed in the liquid passage (47), the bottom end of the transmission shaft (18) is rotatably connected to the top of the support tube (43), and the lower outer wall of the transmission shaft (18) is evenly distributed with a plurality of cleaning plates (42) in frictional contact with the inner wall of the material guide groove (41) along the circumferential direction, and a liquid inlet pipe (79) is fixedly provided on the outer wall of the fixed tube (10) at a position between the lifting circular plate (45) and the inner top of the support tube (43), and one end of the liquid inlet pipe (79) passes through the fixed tube (10) and the support tube (43) and is connected to the inner cavity of the support tube (43); A liquid storage tank (78) is fixedly provided on the top of the support base (1), and a plurality of water pumps (77) are arranged in the liquid storage tank (78). The other ends of the plurality of liquid inlet pipes (79) extend through the liquid storage tank (78) to the inside and are fixedly connected to the drainage ports of the plurality of water pumps (77) respectively. The air pump (9) is fixedly installed on the top of the liquid storage tank (78).

3. The soil property improvement device for land improvement according to claim 2, characterized in that: The refinement assembly (5) comprises a horizontally arranged crushing barrel (63), both ends of the crushing barrel (63) are sealed, both ends of the crushing barrel (63) are coaxially provided with a rotating tube (67) extending therethrough, the rotating tube (67) is arranged to reciprocate, a rotating rod (65) is coaxially provided inside the crushing barrel (63), both ends of the rotating rod (65) extend into the two rotating tubes (67) and are correspondingly connected to the two rotating tubes (67) for rotation, and arc plates (68) are arranged at positions on both sides of the crushing barrel (63), the two arc plates (68) are correspondingly fixedly connected to the two rotating tubes (67), and a plurality of arc plates (68) are evenly distributed between the two arc plates (68). A swing plate (76) is provided, wherein the two ends of the swing plate (76) are fixedly connected to the two arc plates (68) respectively, the bottom of the swing plate (76) is in frictional contact with the inner wall of the crushing cylinder (63), the outer wall of the rotating rod (65) is located between the two arc plates (68) and is evenly distributed with a plurality of crushing knives (64) along the circumferential direction, the crushing knives (64) and the swing plate (76) are avoided, the lower outer wall of the crushing cylinder (63) is evenly distributed with a plurality of discharge hoppers (66) along its axial direction, the lower ports of the plurality of discharge hoppers (66) are fixedly connected to the inner cavities of the plurality of fixed hoppers (13), and the outer wall of the crushing cylinder (63) is located inside the discharge hopper (66) and is provided with a plurality of discharge holes (70) which are arranged through the outer wall. A feed channel (58) is provided on the upper part of the support base (1) for vertical lifting. The feed end of the feed channel (58) extends obliquely downward. The discharge end of the feed channel (58) extends obliquely upward and is fixedly connected to a discharge pipe (62). A feed trough (60) is provided through the outer wall of the crushing cylinder (63) at a position close to the feed channel (58). A limit plate (59) is fixedly provided on the outer wall of the crushing cylinder (63) at a position below the feed trough (60). A driving roller (61) and a driven roller (55) are provided at positions on both sides of the feed channel (58) for rotation along a horizontal line. The driving roller (61) is connected to the driven roller (55) via a conveyor belt (57). The outer surface of the conveyor belt (57) is evenly distributed with a plurality of baffles (56) that are in frictional contact with the inner wall of the feed channel (58).

4. The soil property improvement device for land improvement according to claim 2, characterized in that: The leveling assembly (2) comprises a rectangular lifting frame (53) arranged to be lifted vertically, wherein a plurality of vertically arranged scrapers (50) are evenly distributed in the rectangular lifting frame (53) along its length direction, and two adjacent scrapers (50) are fixedly connected via a plurality of connecting rods (52), and the opposite ends of the scrapers (50) are horizontally slidably connected to the rectangular lifting frame (53), and horizontally arranged reciprocating telescopic cylinders (54) are fixedly provided at positions on both sides of the scrapers (50) at the bottom of the rectangular lifting frame (53), and the telescopic end of the reciprocating telescopic cylinder (54) is fixedly connected to one of the scrapers (50).

5. The soil property improvement device for land improvement according to claim 1, characterized in that: An upper driving wheel (15) is fixedly provided on the top of the transmission shaft (18), a support block (19) is fixedly provided on the outer wall of the fixed bucket (13), the top of one of the transmission rods (27) passes through the support block (19) upward and is fixedly provided with an upper driven wheel (17), the transmission rod (27) is rotatably connected to the support block (19), the upper driving wheel (15) is connected to the upper driven wheel (17) via an upper transmission belt (16), a lower driven wheel (38) is fixedly sleeved on the outer wall of the rotating air pipe (36) at a position between the rotating circular plate (31) and the support plate (39), and a plurality of lower driven wheels (38) on the same fixed pipe (10) are connected via a lower transmission belt (7).

6. The soil property improvement device for land improvement according to claim 2, characterized in that: Two vertically arranged control telescopic cylinders (46) are fixedly provided on the inner bottom of the support cylinder (43), and the telescopic ends of the control telescopic cylinders (46) are fixedly connected to the lifting circular plate (45).

7. The soil property improvement device for land improvement according to claim 3, characterized in that: A driven gear (74) is fixedly sleeved on the outer wall of one of the rotating tubes (67) at a position outside the crushing barrel (63), and a driving gear (71) meshing with the driven gear (74) is rotatably provided at the end of the crushing barrel (63).

8. The soil property improvement device for land improvement according to claim 7, characterized in that: A fixed U-shaped plate (75) is fixedly provided at one end of the crushing cylinder (63), and a control motor (73) and a servo motor (72) are fixedly provided at the end of the fixed U-shaped plate (75); an output end of the control motor (73) passes through the fixed U-shaped plate (75) and is fixedly connected to the rotating rod (65), and an output end of the servo motor (72) passes through the fixed U-shaped plate (75) and is fixedly connected to the driving gear (71).

9. The soil property improvement device for land improvement according to claim 3, characterized in that: Two vertically arranged driving telescopic cylinders (69) are fixedly provided on the top of the support base (1), and the telescopic ends of the driving telescopic cylinders (69) are fixedly connected to the feed channel (58).

10. The soil property improvement device for land improvement according to claim 4, characterized in that: Four vertically arranged lifting and telescopic cylinders (51) are fixedly provided on the top of the support base (1), and the telescopic ends of the four lifting and telescopic cylinders (51) are fixedly connected to the four corners of the rectangular lifting frame (53) respectively.

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