Tea garden soil remediation and improvement equipment and method

Abstract

The invention belongs to the technical field of soil pollution remediation and improvement, and particularly relates to tea garden soil remediation and improvement equipment and method.The tea garden soil remediation and improvement equipment comprises a movable base body, a feeding hopper is arranged above the base body, and the bottom of the feeding hopper communicates with a conveying barrel extending rightwards; a spiral conveying blade is rotationally mounted in the conveying cylinder, the lower part of the tail part of the conveying cylinder is communicated with a fermentation tank through a material guide pipe, and the bottom of the fermentation tank is communicated with a material discharge pipe; the fermentation tank is also fixedly arranged on the base body, a dosing mechanism is arranged at the top of the fermentation tank, the dosing mechanism comprises nozzles, the multiple nozzles are installed on the fermentation tank in an array mode and are communicated with the same annular pipe, and the annular pipe is communicated with a dosing box installed on the base body; a material mixing and conveying assembly is communicated with the conveying barrel and is used for conveying organic materials into the conveying barrel to be mixed with soil to be repaired; the remediation and improvement effect of the polluted soil can be improved, and meanwhile the utilization rate of the remedied and improved soil can be increased.

Description

Technical Field

[0001] The invention belongs to the technical field of soil pollution remediation and improvement, and in particular relates to a device and method for tea garden soil remediation and improvement. Background Art

[0002] With the rapid development of modern industry and the impact of human production activities, the natural soil is increasingly damaged and the heavy metal pollution in the soil is becoming more and more serious. Heavy metal pollution in the soil not only seriously affects the soil quality and soil fertility, but also endangers the ecology, food safety and human health.

[0003] Soil remediation is crucial because it not only effectively restores the health of the soil and ensures soil fertility and microbial balance, thereby ensuring crop growth and food security; it also prevents soil pollution from causing further damage to the ecosystem, maintains biodiversity, and promotes ecological balance and sustainable development.

[0004] Most of the existing equipment for repairing and improving the soil that has been used for a long time in tea gardens and has been contaminated, directly moves the soil-turning equipment into the contaminated soil to be repaired and improved, turns the soil, and then sprays the soil remediation agent into the turned soil for repair and improvement. Obviously, this method can only simply repair and improve the contaminated soil, but since the soil conditions for planting tea trees are relatively harsh, if the contaminated soil is only repaired and improved by simply spraying medicine or remediation agents, instead of a series of effective treatments such as adding organic matter, remediation agent improvement and fermentation treatment, it cannot be used for tea tree planting in the tea garden. Summary of the invention

[0005] In order to solve the above technical problems, the present invention is achieved through the following technical solutions: The present invention is a tea garden soil repair and improvement device, comprising a movable base body, a feed hopper is arranged above the base body, and the bottom of the feed hopper is connected to a conveying cylinder extending to the right; a spiral conveying blade is rotatably installed in the conveying cylinder, and the lower tail of the conveying cylinder is connected to a fermentation tank through a material guide pipe, and the bottom of the fermentation tank is connected to a discharge pipe; the fermentation tank is also fixed on the base body, and a dosing mechanism is arranged on the top of the fermentation tank, the dosing mechanism includes a nozzle, a plurality of nozzle arrays are installed on the fermentation tank, and a plurality of nozzles are connected to the same annular pipe, and the annular pipe is connected to a dosing box installed on the base body; the conveying cylinder is connected to a mixing conveying assembly, and the mixing conveying assembly is used to convey organic materials into the conveying cylinder to be mixed with the soil to be repaired.

[0006] Furthermore, a conical mesh cylinder is arranged inside the fermentation tank and at the lower pipe opening of the material guide pipe, the bottom of the conical mesh cylinder is connected to the inner wall of the fermentation tank, and the upper pipe opening thereof is in a sealed state; A stirring eccentric mechanism is arranged inside the fermentation tank. The stirring eccentric mechanism includes a shaft rod which is vertically and rotatably installed inside the fermentation tank, and a plurality of stirring rods are equidistantly installed on the shaft rod. The stirring rod located at the lower part is in contact with the bottom of the fermentation tank. A disc is installed at the top of the stirring rod, and the disc is located at the upper barrel opening of the conical mesh cylinder. A guiding chute is radially opened on the upper surface of the disc, and a sliding block is slidably arranged in the guiding chute through a spring member. An eccentric disc is slidably arranged on the upper surface of the disc, and the eccentric disc is connected to the sliding block.

[0007] Furthermore, the stirring eccentric mechanism further includes an electric push rod. The cylinder body of the electric push rod is rotatably installed in a cavity opened at the top of the stirring rod through a bearing, and the output rod of the electric push rod is connected to the disc. A plurality of square jacks are arrayed and opened at the top of the stirring rod. At least two square inserts are fixedly arranged on the lower surface of the disc, and the square inserts are correspondingly inserted into the square jacks. A plurality of vertical guide grooves are arrayed and opened on the inner wall circumference of the fermentation tank. A connecting slider is slidably arranged in each vertical guide groove, and a spring member is connected between the connecting slider and the groove wall of the vertical guide groove. An annular ring is connected to the outer circumferential surface of the bottom of the conical mesh cylinder, and the annular ring is rotatably installed on an elastic ring. The elastic ring is connected to a plurality of circumferentially arrayed connecting sliders. A conical boss is fixedly arranged at the upper barrel opening of the conical mesh cylinder, and the diameter of the conical boss is the same as the inner diameter of the feeding pipe.

[0008] Furthermore, a segmented elastic membrane is arranged at the notch of the vertical guide groove. The elastic membrane is connected to the connecting slider and the upper and lower groove bottoms of the vertical guide groove. The lower pipe opening of the feeding pipe is communicated with a horn through an elastic hose, and the bottom barrel opening diameter of the horn is larger than the upper barrel body diameter of the conical mesh cylinder.

[0009] Furthermore, a plurality of concave square holes are arrayed and opened on the outer circumferential surface of the conical boss. A vibrating rod is slidably connected in the concave square hole through a spring member, and the outer end of the vibrating rod is in contact with the inner wall of the lower barrel opening of the horn.

[0010] Furthermore, the mixing and conveying assembly includes a mixing cylinder. The mixing cylinder is communicated to a conveying cylinder through a conduit at the bottom, and a valve body is installed on the conduit. A plurality of feeding hoppers are communicated to the top of the mixing cylinder, and different types of organic fertilizers are added into each feeding hopper. A stirring assembly is installed inside the mixing cylinder.

[0011] Furthermore, symmetrically arranged crushing rollers are rotatably installed in the feeding hopper through a rotating shaft. A plurality of connected collecting boxes are installed outside the fermentation tank, and the box openings of the collecting boxes correspond to the side walls of the bottom of the conical mesh cylinder.

[0012] A method for repairing and improving tea garden soil, applicable to the above-mentioned tea garden soil repair and improvement equipment, the method comprising the following steps: S1: Material selection: Determine the mixing ratio of organic fertilizer and soil conditioner according to the tea garden soil pollution detection results and the requirements of the tea tree growth stage; S2: Soil repair preparation: Convey the polluted soil into the feed hopper for crushing treatment. The mixing and conveying assembly is used for mixing and conveying the organic fertilizer, and the dosing mechanism is used to spray the soil conditioner into the soil; S3: Fermentation treatment: Regularly monitor the temperature change according to the thermometer inside the fermentation tank. When the stack temperature rises to 55 - 65 °C, stir and turn the materials to make the materials evenly heated and accelerate the fermentation process. Generally, it needs to be turned 3 - 4 times, and the whole fermentation cycle lasts for 45 - 60 days; S4: Filling preparation: Simply level the stepped surface of the tea garden, remove large stones, weeds and sundries to make the ground relatively flat, and then spread the repaired, improved and fermented soil.

[0013] The present invention has the following beneficial effects: 1. The present invention integrally modularizes and integrates the feed hopper, the dosing mechanism, the mixing and conveying assembly and the fermentation tank. It can not only crush the excavated soil, but also mix the organic fertilizer into the soil. Multiple nozzles will spray the soil conditioner into the fermentation tank in a sealed manner, so that the soil conditioner can spray and repair the soil falling into the fermentation tank. The soil repaired and improved by the medicament and the organic fertilizer will gather in the fermentation tank and be fermented by the fermentation tank, making the soil repair and improvement equipment of the present invention not only able to quickly and efficiently repair and improve the polluted soil, but also directly ferment the repaired organic fertilizer soil, thereby improving the effect of repairing and improving the polluted soil and the utilization rate of the repaired and improved soil.

[0014] 2. The present invention sets a conical mesh cylinder in the fermentation tank, and the eccentric disc will perform circumferential vibration on the conical mesh cylinder, which will not only accelerate the filtration and separation of the soil by the conical mesh cylinder, but also the vibrating conical mesh cylinder will be offset and skewed in the fermentation tank, and can also crush the massive soil between the bottom of the conical mesh cylinder and the inner wall of the fermentation tank, so that the offset and skewed conical mesh cylinder can play a secondary crushing effect on the intercepted large soil. When the large soil is crushed by the conical mesh cylinder, it can also fully contact with the sprayed repair agent, so as to improve the efficient and accurate repair treatment of the repair agent on the soil.

[0015] Of course, it is not necessary for any product implementing the present invention to achieve all the above-mentioned advantages simultaneously. Description of the Drawings

[0016] To more clearly illustrate the technical solutions of the embodiments of the present invention, the following will briefly introduce the accompanying drawings required for the description of the embodiments. Obviously, the accompanying drawings in the following description are only some embodiments of the present invention. For those of ordinary skill in the art, without creative efforts, other accompanying drawings can also be obtained based on these drawings.

[0017] Figure 1 Schematic diagram of the overall structure disclosed by the present invention; Figure 2 Schematic diagram of the structure of the feed hopper and the conveying cylinder disclosed by the present invention; Figure 3 Schematic diagram of the structure of the fermentation tank disclosed by the present invention; Figure 4 Cross-sectional view of the fermentation tank disclosed by the present invention; Figure 5 Cross-sectional view of the conical mesh cylinder disclosed by the present invention; Figure 6 Disclosed by the present invention Figure 5 Partial enlarged view at A in

[0018] In the figure: 1, base body; 2, feed hopper; 3, conveying cylinder; 31, spiral conveying blade; 32, material guiding pipe; 4, fermentation tank; 41, vertical guide groove; 5, dosing mechanism; 51, nozzle; 52, annular pipe; 53, dosing tank; 6, mixing and conveying assembly; 61, mixing cylinder; 62, feeding hopper; 63, stirring assembly; 7, conical mesh cylinder; 71, conical boss; 72, sunken square hole; 73, vibrating rod; 74, annular ring; 75, elastic ring; 8, stirring eccentric mechanism; 81, shaft rod; 811, square jack; 82, stirring rod; 83, disc; 831, guiding chute; 84, spring member; 85, sliding block; 86, eccentric disc; 87, electric push rod; 88, square plug; 89, connecting slider; 9, horn cylinder; 10, crushing roller; 11, collection box. Specific embodiments

[0019] The following will clearly and completely describe the technical solutions in the embodiments of the present invention with reference to the accompanying drawings in the embodiments of the present invention. Obviously, the described embodiments are only some of the embodiments of the present invention, rather than all the embodiments. Based on the embodiments of the present invention, all other embodiments obtained by those of ordinary skill in the art without creative efforts belong to the scope of protection of the present invention.

[0020] In the description of the present invention, it should be understood that the terms "open hole", "upper", "lower", "thickness", "top", "middle", "length", "inner", "periphery", etc. indicating the orientation or positional relationship are only for the convenience of describing the present invention and simplifying the description, rather than indicating or implying that the components or elements referred to must have a specific orientation, be constructed and operated in a specific orientation, and thus should not be construed as a limitation to the present invention.

[0021] Please refer to Figures 1-6 As shown, the present invention is a device for repairing and improving tea garden soil, including a mobile base body 1. Above the base body 1, a feed hopper 2 is provided, and the bottom of the feed hopper 2 is communicated with a conveying cylinder 3 extending to the right. A spiral conveyor blade 31 is rotatably installed in the conveying cylinder 3. Below the tail of the conveying cylinder 3, a fermentation tank 4 is communicated through a guide pipe 32, and a discharge pipe is communicated with the bottom of the fermentation tank 4. The fermentation tank 4 is also fixedly installed on the base body 1, and a chemical adding mechanism 5 is provided at the top of the fermentation tank 4. The chemical adding mechanism 5 includes nozzles 51. A plurality of nozzles 51 are arrayed and installed on the fermentation tank 4, and a plurality of them are communicated with the same annular pipe 52, while the annular pipe 52 is communicated with a chemical adding tank 53 installed on the base body 1. A mixing and conveying assembly 6 is communicated with the conveying cylinder 3. The mixing and conveying assembly 6 is used to convey organic materials into the conveying cylinder 3 to be mixed with the soil to be repaired. Specifically, the present invention integrally modularizes and integrates the feeding hopper 2, the chemical adding mechanism 5, the mixing and conveying assembly 6, and the fermentation tank 4. Through a movable base body 1, such as a crawler vehicle, a movable flatbed truck, etc., it is convenient to move the integrally arranged repair and improvement equipment to the soil to be contaminated and repaired. Then, the soil to be repaired is conveyed into the feeding hopper 2 through mechanical equipment, such as a small excavator or an inclined conveyor belt. The large pieces of soil entering are broken by the symmetric crushing rollers 10, and then conveyed in the direction of the fermentation tank 4 through the connected conveying cylinder 3 and the rotating spiral conveying blade 31. The mixing and conveying assembly 6 can first mix organic fertilizers, such as livestock and poultry manure, green manure crops, crop straws, etc., and then drop them into the conveying cylinder 3 to be mixed with the continuously spirally conveyed soil. The soil mixed with fertilizers will fall into the fermentation tank 4 through the guide pipe 32. The liquid agent, such as a soil repair agent, a microbial agent, etc., is added to the chemical adding tank 53; it is shunted to a plurality of nozzles 51 through the annular pipe 52, and the plurality of nozzles 51 will spray the soil repair agent into the fermentation tank 4 in a sealed manner, so that the soil repair agent can spray and repair the soil falling into the fermentation tank 4. The soil repaired and improved by the agent and the organic fertilizer will gather in the fermentation tank 4 and be fermented by the fermentation tank 4 until the material color becomes dark brown, the texture is soft, and it emits a fresh soil fragrance, indicating that the fermentation of the repaired and improved organic fertilizer soil is completed. Then, it is discharged through the discharge pipe at the bottom of the fermentation tank 4 and spread on the tea garden area where tea trees are to be planted for tea tree planting treatment. The soil repair and improvement equipment of the present invention can not only quickly and efficiently repair and improve the contaminated soil, but also directly ferment the repaired organic fertilizer soil, thereby improving the effect of repairing and improving the contaminated soil and at the same time improving the utilization rate of the repaired and improved soil.

[0022] In this embodiment, a conical mesh cylinder 7 is arranged inside the fermentation tank 4 and at the lower pipe orifice of the guide pipe 32. The bottom of the conical mesh cylinder 7 is connected to the inner wall of the fermentation tank 4, and its upper orifice is in a sealed state; a stirring eccentric mechanism 8 is arranged in the fermentation tank 4. The stirring eccentric mechanism 8 includes a shaft rod 81, the shaft rod 81 is vertically rotatably installed in the fermentation tank 4, and a plurality of stirring rods 82 are equidistantly installed on the shaft rod 81. The lower stirring rod 82 is in contact with the bottom of the fermentation tank 4; a disc 83 is installed at the top of the stirring rod 82, and the disc 83 is located at the upper orifice of the conical mesh cylinder 7. A guiding chute 831 is radially opened on the upper surface of the disc 83, and a sliding block 85 is slidably arranged in the guiding chute 831 through a spring member 84; a cam 86 is slidably arranged on the upper surface of the disc 83, and the cam 86 is connected to the sliding block 85; Specifically, the design of the conical mesh cylinder 7 can intercept the large pieces of soil that are not pulverized or remain in the falling soil, while the small particle soil will fall into the fermentation tank 4. At the same time, the conical mesh cylinder 7 can also play a role in intercepting and buffering the falling soil, enabling the sprayed soil remediation agent to fully contact the soil. The shaft rod 81 can be driven to rotate by a servo motor fixedly installed at the bottom of the fermentation tank 4, so that the plurality of stirring rods 82 can rotate in the fermentation tank 4 to realize the agitation of the falling soil. This can not only fully mix and contact the soil and the remediation agent, but also drive the disc 83 at the top to rotate. The centrifugal force generated by the rotation of the disc 83 will cause the sliding block 85 to slide towards the edge of the disc 83 in the guiding chute 831. Then, the eccentric disc 86 will synchronously slide and contact the inner wall of the upper barrel opening of the conical mesh cylinder 7. As the shaft rod 81 continuously rotates, the eccentric disc 86 will perform a circumferential vibration treatment on the conical mesh cylinder 7. This will not only accelerate the filtration and separation of the soil by the conical mesh cylinder 7, but also cause the vibrating conical mesh cylinder 7 to deflect and skew in the fermentation tank 4, and can also crush the massive soil falling between the bottom of the conical mesh cylinder 7 and the inner wall of the fermentation tank 4. This enables the deflected and skewed conical mesh cylinder 7 to have a secondary crushing effect on the intercepted large pieces of soil. When the large pieces of soil are crushed by the conical mesh cylinder 7, they can also fully contact the sprayed remediation agent, improving the efficient and accurate remediation of the soil by the remediation agent. By controlling the rotation speed of the shaft rod 81, different sizes of centrifugal forces can be generated by the disc 83, thereby changing the sliding distance of the eccentric disc 86, realizing different sizes of vibration forces generated by the eccentric disc 86 on the conical mesh cylinder 7, and then changing the degree of skew swing of the conical mesh cylinder 7 in the fermentation tank 4, and being able to perform filtration separation and extrusion crushing treatment on soils with different degrees of fragmentation.

[0023] In this embodiment, the stirring eccentric mechanism 8 further includes an electric push rod 87. The cylinder body of the electric push rod 87 is rotatably installed in the cavity opened at the top of the shaft rod 81 through a bearing, and the output rod of the electric push rod 87 is connected to the disc 83. A plurality of square jacks 811 are arrayed and opened at the top of the shaft rod 81. At least two square plugs 88 are fixedly installed on the lower surface of the disc 83, and the square plugs 88 are correspondingly inserted into the square jacks 811. A plurality of vertical guide grooves 41 are arrayed and opened on the inner wall circumference of the fermentation tank 4, and a connecting slider 89 is slidably arranged in each vertical guide groove 41. A spring member 84 is connected between the connecting slider 89 and the groove wall of the vertical guide groove 41. An annular ring 74 is connected to the outer circumferential surface of the bottom of the conical mesh cylinder 7, and an elastic ring 75 is rotatably installed on the annular ring 74, and the elastic ring 75 is connected to a plurality of circumferentially arrayed connecting sliders 89. A conical boss 71 is fixedly installed at the top barrel opening of the conical mesh cylinder 7, and the diameter of the conical boss 71 is the same as the inner diameter of the material guiding pipe 32. Specifically, the conical mesh cylinder 7 is connected to the inner wall of the fermentation tank 4 through an elastic ring 75, so that it will not interfere with its irregular shaking in the fermentation tank 4, realizing the filtration and screening of the falling soil, and the extrusion and crushing of the large soil blocks intercepted by the screening; when the soil in the fermentation tank 4 continues to fall, at this time, the output rod of the electric push rod 87 extends out, which will push the disc 83 and the eccentric disc 86 upward, and at this time, the square insert block 88 will also move upward in the square jack 811 and disengage. Since the bottom of the conical mesh cylinder 7 is slidably connected to the vertical guide groove 41 through a plurality of connecting sliders 89, therefore, the upward moving eccentric disc 86 will push the conical mesh cylinder 7 to move upward synchronously. At this time, the connecting slider 89 moves upward in the vertical guide groove 41, which will compress the spring member 84 on the upper surface. While the conical mesh cylinder 7 is rising, the continuous rotation of the shaft rod 81 will continue to vibrate and shake the conical mesh cylinder 7 through the eccentrically sliding eccentric disc 86. Furthermore, it can adjust the space inside the fermentation tank 4 and will continue to filter, intercept and extrude and crush the soil entering the fermentation tank 4. Since the eccentric disc 86 contacts the upper barrel opening of the conical mesh cylinder 7 when rising, therefore, the rotation of the eccentric disc 86 will cause the conical mesh cylinder 7 rotatably connected through the annular ring 74 to rotate synchronously, and further cause the conical mesh cylinder 7 to tilt and swing in a rotating state; When the fermentation tank 4 needs to ferment the repaired and improved soil, at this time, the output rod of the electric push rod 87 continues to extend out, so that the square insert block 88 completely disengages from the square jack 811. At this time, the conical boss 71 will insert upward into the feed pipe 32 to seal the fermentation tank 4, so that the repaired and improved soil can be stably fermented in the fermentation tank 4. Since the cylinder body of the electric push rod 87 is rotatably connected to the cavity opened on the shaft rod 81 through a bearing, therefore, the continuous rotation of the shaft rod 81 will only drive a plurality of stirring rods 82 to rotate in the fermentation tank 4 to turn the fermenting soil. The fermented soil will be discharged through the discharge pipe at the bottom of the fermentation tank 4. At this time, the descent of the disc 83 will drive two square insert blocks 88 to insert into the corresponding square jacks 811, so that the continuous rotation of the shaft rod 81 will drive the disc 83 to rotate, and further the sliding of the eccentric disc 86 will continue to vibrate the conical mesh cylinder 7.

[0024] In this embodiment, a segmented elastic membrane is provided at the notch of the vertical guide groove 41. The elastic membrane is connected to the connecting slider 89 and the upper and lower groove bottoms of the vertical guide groove 41. The lower pipe orifice of the feed pipe 32 is communicated with a horn 9 through an elastic hose, and the bottom barrel orifice diameter of the horn 9 is larger than the top barrel diameter of the conical mesh cylinder 7. A plurality of recessed square holes 72 are arrayed on the outer circumferential surface of the conical boss 71, and a vibrating rod 73 is slidably connected to the recessed square holes 72 through a spring member 84. The outer end of the vibrating rod 73 contacts the inner wall of the lower barrel orifice of the horn 9; Specifically, the design of the segmented elastic membrane can seal the vertical guide groove 41, preventing soil from entering the vertical guide groove 41, and thus not interfering with the normal sliding of the connecting slider 89. The design of the horn-shaped cylinder 9 facilitates the uniform diversion of soil onto the conical mesh cylinder 7. The skew swing of the conical mesh cylinder 7 will synchronously vibrate the horn-shaped cylinder 9 connected by the spring member 84 to prevent soil from clogging at the upper opening of the material guide pipe 32 and the horn-shaped cylinder 9. The depth of the concave square hole 72 is greater than the length of the vibrating rod 73. Therefore, when the conical boss 71 moves upward and inserts into the material guide pipe 32, the vibrating rod 73 will be synchronously compressed and hidden in the concave square hole 72 without interfering with the upward movement of the conical boss 71.

[0025] In this embodiment, the mixing and conveying assembly 6 includes a mixing cylinder 61. The mixing cylinder 61 is connected to the conveying cylinder 3 through a conduit at the bottom, and a valve body is installed on the conduit. A plurality of feeding hoppers 62 are connected to the top of the mixing cylinder 61. Different types of organic fertilizers are added to each feeding hopper 62, and a stirring assembly 63 is installed in the mixing cylinder 61. Specifically, different types of organic fertilizers are added to each feeding hopper 62, such as livestock and poultry manure, green manure, straw, and imported soil. Then, the organic fertilizers are stirred and mixed by the stirring assembly 63 in the mixing cylinder 61. Then, by opening the valve body, the mixed organic fertilizers flow into the conveying cylinder 3 through the conduit to be mixed with the crushed soil.

[0026] In this embodiment, symmetrically arranged crushing rollers 10 are rotatably installed in the feeding hopper 2 through a rotating shaft. A plurality of connected collection boxes 11 are installed outside the fermentation tank 4, and the mouths of the collection boxes 11 correspond to the bottom side walls of the conical mesh cylinder 7. Specifically, the collection boxes 11 are located between two adjacent vertical guide grooves 41, and a sealing plug board is provided at the connection of the collection boxes 11. By opening the sealing plug board of the collection boxes 11, the non-soil sundries that are not squeezed and crushed at the bottom of the outer circle of the conical mesh cylinder 7 can be discharged and collected, and then fermented. The symmetric crushing rollers 10 are driven to rotate by a servo motor fixed on the outer side wall of the feeding hopper 2.

[0027] The present invention also provides a method for repairing and improving tea garden soil, which is applicable to the above-mentioned tea garden soil repair and improvement equipment. The method includes the following steps: S1: Material selection: According to the tea garden soil pollution detection results and the requirements of the tea tree growth stage, determine the mixing ratio of the organic fertilizer and the soil conditioner. For example, generally for young tea gardens, the ratio of livestock and poultry manure: green manure: straw: lime: microbial inoculant: perlite: vermiculite: in-situ soil (or imported soil) = 3:2:2:1:0.1:0.5:0.4:4 can be used for mixing; for mature tea gardens, it is adjusted to 4:1:1:0.5:0.2:0.8:0.5:5. S2: Soil remediation preparation: The contaminated soil is transported into the feed hopper 2 for crushing. The mixing and conveying assembly 6 is used for mixing and conveying the organic fertilizer, and the chemical dosing mechanism 5 is used for spraying the soil remediation agent into the soil. S3: Fermentation treatment: According to the thermometer inside the fermentation tank 4, the temperature change is monitored regularly. When the stack temperature rises to 55 - 65 °C, stirring and turning the material are carried out to make the material evenly heated and accelerate the fermentation process. Generally, the material needs to be turned 3 - 4 times, and the entire fermentation cycle lasts for 45 - 60 days. S4: Filling preparation: The terraced surface of the tea garden is simply leveled, large stones, weeds and sundries are removed to make the ground relatively flat, and then the repaired, improved and fermented soil is spread.

[0028] In the description of this specification, the description with reference to terms such as "one embodiment", "example", "specific example", etc. means that the specific features, structures, materials or characteristics described in connection with the embodiment or example are included in at least one embodiment or example of the present invention. In this specification, the schematic representations of the above terms do not necessarily refer to the same embodiment or example. Moreover, the specific features, structures, materials or characteristics described can be combined in a suitable manner in any one or more embodiments or examples.

[0029] The preferred embodiments of the present invention disclosed above are only used to help explain the present invention. The preferred embodiments do not describe all the details in detail, nor do they limit the invention to the specific embodiments described. Obviously, many modifications and variations can be made according to the content of this specification. These embodiments are selected and specifically described in this specification to better explain the principles and practical applications of the present invention, so that those skilled in the art can understand and utilize the present invention well. The present invention is only limited by the claims and their full scope and equivalents.

Claims

1. A tea garden soil remediation and improvement device, comprising a movable base body, characterized in that: A feed hopper is arranged above the base body, and the bottom of the feed hopper is connected to a conveying cylinder extending to the right; A spiral conveying blade is rotatably installed in the conveying cylinder, and the lower tail of the conveying cylinder is connected to a fermentation tank through a material guide pipe, and the bottom of the fermentation tank is connected to a discharge pipe; The fermentation tank is also fixed on the base body, and a dosing mechanism is arranged on the top of the fermentation tank, the dosing mechanism includes a nozzle, a plurality of nozzle arrays are installed on the fermentation tank, and a plurality of nozzles are connected to the same annular pipe, and the annular pipe is connected to a dosing box installed on the base body; The conveying cylinder is connected with a mixing conveying component, and the mixing conveying component is used to convey the organic material into the conveying cylinder to be mixed with the soil to be repaired.

2. The tea garden soil remediation and improvement equipment according to claim 1, characterized in that: A conical net cylinder is arranged inside the fermentation tank and at the lower pipe opening of the material guide pipe, the bottom of the conical net cylinder is connected to the inner wall of the fermentation tank, and the upper pipe opening is in a sealed state; An eccentric stirring mechanism is provided in the fermentation tank, and the eccentric stirring mechanism includes a shaft rod, which is vertically rotatably installed in the fermentation tank, and a plurality of stirring rods are equidistantly installed on the shaft rod, and the stirring rod located at the bottom is in contact with the bottom of the fermentation tank; A disc is installed on the top of the stirring rod, and the disc is located at the upper tube mouth of the conical net cylinder, and a guide groove is radially opened on the upper surface of the disc, and a sliding block is slidably arranged in the guide groove through a spring member; An eccentric disk is slidably arranged on the upper surface of the disk, and the eccentric disk is connected with the sliding block.

3. The tea garden soil remediation and improvement equipment according to claim 2 is characterized in that: The stirring eccentric mechanism also includes an electric push rod, the cylinder body of which is rotatably mounted in a cavity opened at the top of the stirring rod through a bearing, and the output rod of the electric push rod is connected to the disc; A plurality of square plug holes are arranged in an array on the top of the stirring rod, and at least two square plug blocks are fixed on the lower surface of the disc, and the square plug blocks are correspondingly plugged into the square plug holes; A plurality of vertical guide grooves are provided in a circumferential array on the inner wall of the fermentation tank, and a connecting slider is slidably arranged in each vertical guide groove, and a spring member is connected between the connecting slider and the groove wall of the vertical guide groove; The outer ring surface of the bottom of the conical net cylinder is connected to an annular ring, and the annular ring is rotatably mounted on an elastic ring, and the elastic ring is connected to a plurality of connecting slide blocks in a circumferential array; A conical boss is fixedly arranged at the top of the conical net cylinder, and the diameter of the conical boss is the same as the inner diameter of the material guide tube.

4. The tea garden soil remediation and improvement equipment according to claim 3 is characterized in that: The slot of the vertical guide slot is provided with a segmented elastic membrane, which is connected to the upper and lower slot bottoms of the connecting slider and the vertical guide slot. The lower pipe mouth of the guide pipe is connected to a horn through an elastic hose, and the bottom tube mouth diameter of the horn is larger than the top cylinder diameter of the conical mesh cylinder.

5. The tea garden soil remediation and improvement equipment according to claim 4 is characterized in that: The outer ring surface array of the conical boss is provided with a plurality of concave square holes, and a rapping rod is slidably connected in the concave square hole through a spring member, and the outer end of the rapping rod contacts the inner wall of the lower tube mouth of the horn.

6. The tea garden soil remediation and improvement equipment according to claim 1, characterized in that: The mixing and conveying assembly includes a mixing barrel, which is connected to the conveying barrel through a conduit at the bottom, and a valve body is installed on the conduit. The top of the mixing barrel is connected to multiple feeding hoppers, each of which is added with different types of organic fertilizers, and a stirring assembly is installed in the mixing barrel.

7. The tea garden soil remediation and improvement equipment according to claim 2, characterized in that: Symmetrically arranged crushing rollers are rotatably installed in the feed hopper through a rotating shaft, and a plurality of communicating collecting boxes are installed outside the fermentation tank, and the box openings of the collecting boxes correspond to the side walls of the bottom of the conical mesh cylinder.

8. A method for tea garden soil remediation and improvement, applicable to the tea garden soil remediation and improvement equipment according to any one of claims 1 to 7, characterized in that: The method comprises the following steps: S1: Material selection: Determine the mixing ratio of organic fertilizer and soil remediation agent according to the soil pollution test results of the tea garden and the needs of the tea tree growth stage; S2: Soil remediation preparation: The contaminated soil is transported to the feed hopper for crushing, the mixing and conveying assembly is used to mix and convey the organic fertilizer, and the dosing mechanism is used to spray the soil remediation agent into the soil; S3: Fermentation treatment: According to the thermometer inside the fermentation tank, the temperature changes are monitored regularly. When the pile temperature rises to 55-65℃, the materials are stirred and turned to make the materials evenly heated and accelerate the fermentation process. Generally, the materials need to be turned 3-4 times. The whole fermentation cycle lasts 45-60 days. S4: Filling preparation: Simply level the terraced surface of the tea garden, remove large rocks, weeds and debris to make the ground relatively flat, and then spread the repaired, improved and fermented soil.

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