A device and method for tea garden soil remediation and improvement

Abstract

The present application belongs to the technical field of soil pollution remediation and improvement, and particularly relates to a tea garden soil remediation and improvement equipment and method, which comprises a mobile base body, a feed hopper arranged above the base body, a conveying cylinder extending rightward and communicated with the bottom of the feed hopper, a spiral conveying blade rotatably installed in the conveying cylinder, a fermentation tank communicated with the tail of the conveying cylinder through a material guide pipe, a discharge pipe communicated with the bottom of the fermentation tank, the fermentation tank also being fixedly arranged on the base body, a dosing mechanism arranged on the top of the fermentation tank, the dosing mechanism comprising a plurality of nozzles arranged on the fermentation tank in an array and communicated with the same annular pipe, the annular pipe being communicated with a dosing tank arranged on the base body, a mixing and conveying assembly communicated with the conveying cylinder, and the mixing and conveying assembly being used for conveying organic materials into the conveying cylinder to mix with the soil to be remediated. The present application can improve the remediation and improvement effect of the contaminated soil and improve the utilization rate of the remediated and improved soil.

Description

TECHNICAL FIELD

[0001] The application belongs to the technical field of soil pollution remediation and improvement, and particularly relates to a tea garden soil remediation and improvement equipment and method. BACKGROUND

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

[0003] Soil remediation is very important, because it can not only effectively restore the health of the soil, ensure the soil fertility and microbial balance, and thus guarantee the growth of crops and food safety, but also prevent further damage to the ecological system caused by soil pollution, maintain biodiversity, and promote ecological balance and sustainable development.

[0004] The existing equipment for remediation and improvement of the soil in the tea garden which is polluted for a long time directly drives the soil turning equipment into the soil to be remediated and improved, turns the soil, and then sprays the soil remediation agent into the turned soil for remediation and improvement treatment. Obviously, this method can only simply remediate and improve the polluted soil. However, since the soil conditions for planting tea trees are relatively harsh, the polluted soil cannot be used for tea tree planting by simply spraying the soil with medicine or remediation agent for remediation and improvement, but a series of effective treatments such as organic matter addition, remediation agent improvement and fermentation treatment must be performed. SUMMARY

[0005] To solve the above technical problems, the application is realized by the following technical scheme:

[0006] The application is a tea garden soil remediation and improvement equipment, which comprises a movable base body, a feed hopper arranged above the base body, a conveying cylinder extending to the right and communicated with the bottom of the feed hopper, a spiral conveying blade rotatably installed in the conveying cylinder, a fermentation tank communicated with the tail of the conveying cylinder through a material guide pipe, a discharge pipe communicated with the bottom of the fermentation tank, the fermentation tank also being fixedly arranged on the base body, a medicine adding mechanism arranged on the top of the fermentation tank, the medicine adding mechanism comprising a plurality of nozzles arranged in an array on the fermentation tank and communicated with the same annular pipe, the annular pipe being communicated with a medicine adding tank arranged on the base body, and a mixture conveying assembly communicated with the conveying cylinder, the mixture conveying assembly being used for conveying organic materials into the conveying cylinder and mixing with the soil to be remediated.

[0007] Further, a conical mesh cylinder is arranged inside the fermentation tank and located below the lower pipe opening of the material guide pipe, the bottom of the conical mesh cylinder is connected with the inner wall of the fermentation tank, and the upper cylinder opening of the conical mesh cylinder is in a sealed state.

[0008] The stirring eccentric mechanism is provided in the fermentation tank, and comprises 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 lower stirring rod is attached to the tube bottom of the fermentation tank;

[0009] A disc is installed on the top of the stirring rod, and the disc is located at the upper barrel opening of the conical mesh barrel, a guide sliding groove is radially formed on the upper surface of the disc, and a sliding block is slidably arranged in the guide sliding groove through a spring member;

[0010] An eccentric disc is slidably arranged on the upper surface of the disc, and the eccentric disc is connected with the sliding block.

[0011] Further, the stirring eccentric mechanism further comprises an electric push rod, the cylinder body of the electric push rod is rotatably installed in the cavity formed on the top of the stirring rod through a bearing, and the output rod of the electric push rod is connected with the disc;

[0012] A plurality of square insertion holes are arrayed on the top of the stirring rod, at least two square insertion blocks are fixedly arranged on the lower surface of the disc, and the square insertion blocks are correspondingly inserted into the square insertion holes;

[0013] A plurality of vertical guide grooves are arrayed on the inner wall circumference of the fermentation tank, a connecting sliding block is slidably arranged in each vertical guide groove, and a spring member is connected between the connecting sliding block and the groove wall of the vertical guide groove;

[0014] An annular ring is connected to the outer circumferential surface of the bottom of the conical mesh barrel, and an elastic ring is rotatably installed on the annular ring, and the elastic ring is connected with a plurality of circumferentially arrayed connecting sliding blocks;

[0015] A conical boss is fixedly arranged on the top barrel opening of the conical mesh barrel, and the diameter of the conical boss is the same as the inner diameter of the material guide pipe.

[0016] Further, the groove opening of the vertical guide groove is provided with a segmented elastic membrane, the elastic membrane is connected with the connecting sliding block and the upper and lower groove bottoms of the vertical guide groove, the lower barrel opening of the material guide pipe is communicated with a horn barrel through an elastic hose, and the diameter of the bottom barrel opening of the horn barrel is greater than the diameter of the top barrel body of the conical mesh barrel.

[0017] Further, a plurality of recessed square holes are arrayed on the outer circumferential surface of the conical boss, and a vibrating rod is slidably connected in the recessed 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 barrel.

[0018] Further, the mixing and conveying assembly comprises a mixing barrel, the mixing barrel is communicated to the conveying barrel through a guide pipe at the bottom, a valve body is installed on the guide pipe, a plurality of charging hoppers are communicated on the top of the mixing barrel, different types of organic fertilizers are added in each charging hopper, and an agitating assembly is installed in the mixing barrel.

[0019] Further, symmetrically arranged crushing rollers are rotatably installed in the feeding hopper through a rotating shaft, and a plurality of collecting boxes are installed outside the fermentation tank in communication, and the box opening of the collecting box corresponds to the side wall of the bottom of the conical mesh cylinder.

[0020] A tea garden soil remediation and improvement method suitable for the tea garden soil remediation and improvement device, the method comprising the following steps:

[0021] S1: material selection: according to the tea garden soil pollution detection result and the tea tree growth stage requirement, the mixing ratio of organic fertilizer and soil remediation agent is determined;

[0022] S2: soil remediation preparation: the contaminated soil is transported into the feeding hopper for crushing treatment, the material mixing and conveying assembly is used for mixing and conveying the organic fertilizer, and the dosing mechanism is used for spraying the soil remediation agent into the soil;

[0023] S3: fermentation treatment: according to the thermometer inside the fermentation tank, the temperature change is monitored regularly, when the pile temperature rises to 55-65°C, the material is uniformly heated by stirring and turning over, and the fermentation process is accelerated, generally 3-4 times of turning over is needed, and the whole fermentation period lasts for 45-60 days;

[0024] S4: soil preparation: the tea garden is simply leveled, and large stones, weeds and sundries are removed, so that the ground is relatively flat, and then the remediation and improvement and fermented soil is spread.

[0025] The present application has the following beneficial effects:

[0026] 1, the feeding hopper, dosing mechanism, material mixing and conveying assembly and fermentation tank are integrally and modularly arranged, not only can the excavated soil be crushed, but also the organic fertilizer can be mixed into the soil, the soil remediation agent can be sprayed into the fermentation tank in a sealed manner through the plurality of nozzles, the soil remediation agent can be sprayed and remediated to the soil falling into the fermentation tank, and the soil remediated and improved by the agent and the organic fertilizer is gathered in the fermentation tank, and the soil is fermented in the fermentation tank, so that the soil remediation and improvement device can not only quickly and efficiently remediate and improve the contaminated soil, but also can directly ferment the remediated organic fertilizer soil, thereby improving the remediation and improvement effect of the contaminated soil, and improving the utilization rate of the remediated soil.

[0027] 2、The present application is provided with a conical mesh cylinder in the fermentation tank, and the eccentric disc will perform circumferential vibration and beating treatment on the conical mesh cylinder, which not only accelerates the filtering and separating treatment of the conical mesh cylinder on the soil, but also offsets and inclines the conical mesh cylinder in the fermentation tank, and can crush the blocky soil between the bottom of the conical mesh cylinder and the inner wall of the fermentation tank, so that the offset and inclined conical mesh cylinder can further crush the large blocky soil, and the large blocky soil can be in full contact with the sprayed repair agent during the crushing, so that the efficient and accurate repair of the soil by the repair agent is improved.

[0028] Of course, implementing any product of the present application does not necessarily require achieving all the advantages described above at the same time. BRIEF DESCRIPTION OF DRAWINGS

[0029] In order to more clearly illustrate the technical solutions of the embodiments of the present application, the drawings needed for the embodiment description will be briefly introduced below. Obviously, the drawings in the following description are only some embodiments of the present application, and other drawings can also be obtained by those skilled in the art without creative labor.

[0030] Figure 1 The overall structure schematic diagram of the present application is disclosed;

[0031] Figure 2 The structure schematic diagram of the feeding hopper and the conveying cylinder of the present application is disclosed;

[0032] Figure 3 The structure schematic diagram of the fermentation tank of the present application is disclosed;

[0033] Figure 4 The sectional view of the fermentation tank of the present application is disclosed;

[0034] Figure 5 The sectional view of the conical mesh cylinder of the present application is disclosed;

[0035] Figure 6 The structure schematic diagram of the present application is disclosed Figure 5 The local enlarged view of A in the middle.

[0036] In the figure: 1, base body;

[0037] 2, feeding hopper;

[0038] 3, conveying cylinder; 31, spiral conveying blade; 32, material guide pipe;

[0039] 4, fermentation tank; 41, vertical guide groove;

[0040] 5, dosing mechanism; 51, nozzle; 52, annular pipe; 53, dosing tank;

[0041] 6, mixing conveying assembly; 61, mixing barrel; 62, feeding hopper; 63, stirring assembly;

[0042] 7, conical mesh barrel; 71, conical boss; 72, recessed square hole; 73, rapping rod; 74, annular ring; 75, elastic ring;

[0043] 8, stirring eccentric mechanism; 81, shaft; 811, square socket; 82, stirring rod; 83, disc; 831, guide chute; 84, spring member; 85, sliding block; 86, eccentric disc; 87, electric push rod; 88, square plug; 89, connecting sliding block;

[0044] 9, horn barrel;

[0045] 10, crushing roller;

[0046] 11, collection box. DETAILED DESCRIPTION

[0047] The technical solutions in the embodiments of the present application will be clearly and completely described below with reference to the drawings in the embodiments of the present application. Obviously, the described embodiments are only part of the embodiments of the present application, rather than all the embodiments. Based on the embodiments in the present application, all other embodiments obtained by those skilled in the art without creative labor fall within the scope of protection of the present application.

[0048] In the description of the present application, it should be understood that the terms "opening", "upper", "lower", "thickness", "top", "middle", "length", "inner", "periphery" and the like indicate the orientation or positional relationship, which are only for the convenience of describing the present application and simplifying the description, and do not indicate or imply that the components or elements referred to must have a particular orientation, be constructed and operated in a particular orientation, and therefore cannot be understood as a limitation of the present application.

[0049] Please refer to Figures 1-6 As shown in the drawings, the present application is a kind of tea garden soil remediation and improvement equipment, including mobile base body 1, base body 1 top is provided with feeding hopper 2, and the bottom of feeding hopper 2 is communicated with the right extension conveying barrel 3;Spiral conveying blade 31 is rotatably installed in conveying barrel 3, and the tail of conveying barrel 3 is communicated with fermentation tank 4 through guide pipe 32, and the bottom of fermentation tank 4 is communicated with discharge pipe;Fermentation tank 4 is also fixed on base body 1, and the top of fermentation tank 4 is provided with dosing mechanism 5, dosing mechanism 5 includes nozzle 51, a plurality of nozzles 51 are arrayed installed on fermentation tank 4, and a plurality of nozzles 51 are communicated with the same annular pipe 52, and annular pipe 52 is communicated with dosing tank 53 installed on base body 1;Conveying barrel 3 is communicated with mixing conveying assembly 6, and mixing conveying assembly 6 is used for conveying organic material into conveying barrel 3 and mixing with the soil to be repaired;

[0050] Specifically, the application integrates the feed hopper 2, the dosing mechanism 5, the mixed material conveying assembly 6 and the fermentation tank 4 into a modular integrated setting, which is moved to the soil to be contaminated for remediation through a movable base body 1, such as a tracked vehicle, a mobile plate vehicle or the like, and then the soil to be remediated is conveyed into the feed hopper 2 through a mechanical device, such as a small excavator or an inclined conveying belt, the large pieces of soil entering are crushed by the symmetrical crushing rollers 10, and then conveyed to the direction of the fermentation tank 4 through the connected conveying cylinder 3 and the rotating spiral conveying blade 31, while the mixed material conveying assembly 6 can mix the organic fertilizer, such as livestock and poultry manure, green manure crops, crop straw and the like, and then fall into the conveying cylinder 3, mixed with the continuously spiral-conveyed soil, and the soil mixed with the fertilizer falls into the fermentation tank 4 through the guide pipe 32, and the dosing box 53 adds liquid agents, such as soil remediation agents, microbial agents and the like; the ring pipe 52 is divided into a plurality of nozzles 51, and the nozzles 51 spray the soil remediation agent into the fermentation tank 4 in a sealed manner, so that the soil remediation agent can spray and remediate the soil falling into the fermentation tank 4, and the soil remediated by the agents and the organic fertilizer is gathered in the fermentation tank 4, and is subjected to fermentation treatment through the fermentation tank 4 until the material color becomes dark brown, the texture is soft, and the soil emits a clear fragrance, indicating that the remediated organic fertilizer soil fermentation is completed, and then the material is discharged through the discharge pipe at the bottom of the fermentation tank 4 and spread to the tea garden area to be planted with tea trees for tea tree planting treatment, so that the soil remediation and improvement equipment of the application can not only quickly and efficiently remediate and improve the contaminated soil, but also directly ferment the remediated organic fertilizer soil, thereby improving the remediation and improvement effect of the contaminated soil, and improving the utilization rate of the remediated soil.

[0051] In the embodiment, a conical mesh cylinder 7 is arranged inside the fermentation tank 4 and below the lower pipe opening of the guide pipe 32, the cylinder bottom of the conical mesh cylinder 7 is connected with the inner wall of the fermentation tank 4, and the upper cylinder opening thereof is in a sealed state; an eccentric stirring mechanism 8 is arranged in the fermentation tank 4, the eccentric stirring mechanism 8 comprises a shaft 81 vertically rotatably installed in the fermentation tank 4, and a plurality of stirring rods 82 are equidistantly installed on the shaft 81, and the lower stirring rod 82 is attached to the pipe bottom of the fermentation tank 4; a disc 83 is installed on the top of the stirring rod 82, and the disc 83 is located at the upper cylinder opening of the conical mesh cylinder 7, and a guide sliding groove 831 is radially formed on the upper surface of the disc 83, and a sliding block 85 is slidably arranged in the guide sliding groove 831 through a spring member 84; an eccentric disc 86 is slidably arranged on the upper surface of the disc 83, and the eccentric disc 86 is connected with the sliding block 85;

[0052] Specifically, the design of the conical mesh cylinder 7 can intercept the large pieces of soil that are not crushed or remain in the falling soil, while the small particles of soil fall into the fermentation tank 4, and the conical mesh cylinder 7 can also intercept and buffer the falling soil, so that the sprayed soil remediation agent can fully contact the soil; the shaft 81 can be driven to rotate by the servo motor fixed at the bottom of the fermentation tank 4, so that the plurality of stirring rods 82 can rotate in the fermentation tank 4, realizing stirring of the falling soil, which not only can fully mix the soil and the remediation agent, but also can drive the top disc 83 to rotate, and the centrifugal force generated by the rotation of the disc 83 can make the sliding block 85 slide in the guide chute 831 towards the edge of the disc 83, and the eccentric disc 86 synchronously sliding can contact the inner wall of the upper cylinder of the conical mesh cylinder 7, and with the continuous rotation of the shaft 81, the eccentric disc 86 can perform circumferential vibration and beating treatment on the conical mesh cylinder 7, which not only can speed up the filtration and separation treatment of the conical mesh cylinder 7 on the soil, but also can produce a deviation and skew in the fermentation tank 4, which can further crush the blocky soil between the bottom of the conical mesh cylinder 7 and the inner wall of the fermentation tank 4, so that the deviated and skewed conical mesh cylinder 7 can further crush the intercepted large pieces of soil, and the large pieces of soil can fully contact the sprayed remediation agent during crushing, so as to improve the efficient and accurate remediation of the remediation agent on the soil. By controlling the rotation speed of the shaft 81, the disc 83 can generate different sizes of centrifugal force, and the sliding distance of the eccentric disc 86 can be changed, so that the eccentric disc 86 can generate different sizes of beating force on the conical mesh cylinder 7, and the degree of skew and swing of the conical mesh cylinder 7 in the fermentation tank 4 can be changed, and the filtration and separation and extrusion crushing treatment of the soil crushed to different degrees can be realized.

[0053] In the embodiment, the stirring eccentric mechanism 8 further comprises an electric push rod 87, the cylinder of the electric push rod 87 is rotatably installed in the cavity opened at the top of the shaft 81, and the output rod of the electric push rod 87 is connected with the disc 83; a plurality of square insertion holes 811 are arrayed at the top of the shaft 81, at least two square insertion blocks 88 are fixedly arranged on the lower surface of the disc 83, and the square insertion blocks 88 are correspondingly inserted into the square insertion holes 811; a plurality of vertical guide grooves 41 are arrayed on the inner wall of the fermentation tank 4, a connecting sliding block 89 is slidably arranged in each vertical guide groove 41, and a spring member 84 is connected between the connecting sliding block 89 and the groove wall of the vertical guide groove 41; the outer circumferential surface of the bottom of the conical mesh cylinder 7 is connected with an annular ring 74, the annular ring 74 is rotatably installed on the elastic ring 75, and the elastic ring 75 is connected with a plurality of circumferentially arrayed connecting sliding blocks 89; a conical boss 71 is fixedly arranged at the top cylinder of the conical mesh cylinder 7, and the diameter of the conical boss 71 is the same as the inner diameter of the material guide pipe 32;

[0054] Specifically, the conical mesh cylinder 7 is connected with the inner wall of the fermentation tank 4 through the elastic ring 75, so that it does not interfere with its irregular shaking in the fermentation tank 4, realizes filtering and screening of the falling soil, and crushing of the large soil intercepted by the screen; when the soil in the fermentation tank 4 continuously falls, the output rod of the electric push rod 87 extends, which pushes the disc 83 and the eccentric disc 86 upward, and at this time the square insert block 88 also moves upward in the square insert hole 811 to separate, and because the bottom of the conical mesh cylinder 7 is connected to the vertical guide groove 41 through the plurality of connecting sliding blocks 89, the upward movement of the eccentric disc 86 pushes the conical mesh cylinder 7 to move upward synchronously, at this time the connecting sliding block 89 moves upward in the vertical guide groove 41, which compresses the spring member 84 on the upper surface, and while the conical mesh cylinder 7 rises, the continued rotation of the shaft 81 will continue to vibrate and shake the conical mesh cylinder 7 through the eccentric sliding eccentric disc 86, thereby adjusting the space inside the fermentation tank 4, and continuing to filter, intercept and crush the soil entering the fermentation tank 4. Because the eccentric disc 86 is in contact with the upper cylinder port of the conical mesh cylinder 7 when it rises, the rotation of the eccentric disc 86 will make the conical mesh cylinder 7 connected with the ring 74 rotate synchronously, and the conical mesh cylinder 7 will also be inclined and swing in a rotating state.

[0055] When the fermentation tank 4 needs to ferment the repaired and improved soil, the output rod of the electric push rod 87 continues to extend, so that the square insert block 88 completely separates from the square insert hole 811, and at this time the conical boss 71 is inserted into the guide pipe 32 upward, realizing the sealing of the fermentation tank 4, so that the repaired and improved soil can be stably fermented in the fermentation tank 4. Because the cylinder body of the electric push rod 87 is connected with the cavity opened on the shaft 81 through a bearing, the continued rotation of the shaft 81 only drives the plurality of stirring rods 82 to rotate in the fermentation tank 4, which stirs the soil being fermented. The fermented soil is discharged through the discharge pipe at the bottom of the fermentation tank 4, and at this time the downward movement of the disc 83 drives the two square insert blocks 88 to be inserted into the corresponding square insert holes 811, so that the continued rotation of the shaft 81 drives the disc 83 to rotate, and the sliding of the eccentric disc 86 continues to vibrate the conical mesh cylinder 7.

[0056] In this embodiment, the slot of the vertical guide groove 41 is provided with a segmented elastic film, the elastic film is connected with the connecting sliding block 89 and the upper and lower groove bottoms of the vertical guide groove 41, the lower pipe port of the guide pipe 32 is communicated with the horn cylinder 9 through an elastic hose, the bottom cylinder port of the horn cylinder 9 has a diameter larger than that of the top cylinder body of the conical mesh cylinder 7, a plurality of recessed square holes 72 are arrayed on the outer circle surface of the conical boss 71, and a vibration rod 73 is slidably connected in the recessed square hole 72 through a spring member 84, and the outer end of the vibration rod 73 is in contact with the inner wall of the lower cylinder port of the horn cylinder 9.

[0057] Specifically, the design of the segmented elastic film can seal the vertical guide groove 41, so that the soil cannot enter the vertical guide groove 41, and thus does not interfere with the normal sliding of the connecting sliding block 89; the design of the horn barrel 9 facilitates the uniform diversion of the soil to the conical mesh barrel 7, and the tilting of the conical mesh barrel 7 can synchronously vibrate the elastically connected horn barrel 9 through the spring member 84 connected to the vibrating rod 73, thereby preventing the soil from being blocked at the upper barrel opening of the guide pipe 32 and the horn barrel 9; and the depth of the recessed square hole 72 is greater than the length of the vibrating rod 73, so that when the conical boss 71 moves upward and is inserted into the guide pipe 32, the vibrating rod 73 is simultaneously compressed and hidden in the recessed square hole 72 at this time, and does not interfere with the upward movement of the conical boss 71.

[0058] In the embodiment, the mixing and conveying assembly 6 comprises a mixing barrel 61 which is communicated to the conveying barrel 3 through a conduit at the bottom, and a valve body is installed on the conduit, and the top of the mixing barrel 61 is communicated with a plurality of charging hoppers 62, different types of organic fertilizers are added in each charging hopper 62, and an agitation assembly 63 is installed in the mixing barrel 61; specifically, different types of organic fertilizers such as livestock and poultry manure, green manure, straw and guest soil are added in each charging hopper 62, and then the agitation assembly 63 in the mixing barrel 61 is used for agitation and mixing of the organic fertilizers, and then the mixed organic fertilizers flow into the conveying barrel 3 through the opened valve body and are mixed with the crushed soil.

[0059] In the embodiment, the crushing rollers 10 are symmetrically installed in the feeding hopper 2 through a rotating shaft, a plurality of communicating collection boxes 11 are installed outside the fermentation tank 4, and the box opening of the collection box 11 corresponds to the bottom side wall of the conical mesh barrel 7; specifically, the collection box 11 is located between two adjacent vertical guide grooves 41, and a sealing plug plate is arranged at the communication position of the collection box 11, the sealing plug plate of the collection box 11 is opened, non-soil sundries at the bottom of the outer ring of the conical mesh barrel 7 which are not crushed are discharged and collected, and then fermentation treatment is performed, and the symmetric crushing rollers 10 are driven to rotate by the servo motor fixed on the outer side wall of the feeding hopper 2.

[0060] The application also provides a tea garden soil remediation and improvement method suitable for the tea garden soil remediation and improvement device.

[0061] S1: material selection: according to the tea garden soil pollution detection result and the tea tree growth stage demand, the mixing ratio of the organic fertilizer and the soil remediation agent is determined, for example, for a young tea garden, the mixing ratio of livestock and poultry manure: green manure: straw: lime: microbial agent: perlite: vermiculite: local soil (or guest soil) = 3:2:2:1:0.1:0.5:0.4:4 is used; for a mature tea garden, the mixing ratio is adjusted to 4:1:1:0.5:0.2:0.8:0.5:5;

[0062] S2: soil remediation preparation: the contaminated soil is transported into the feed hopper 2 for crushing treatment, the mixing and conveying assembly 6 is used for mixing and conveying the organic fertilizer, and the dosing mechanism 5 is used for spraying the soil remediation agent into the soil;

[0063] S3: fermentation treatment: according to the thermometer inside the fermentation tank 4, the temperature change is monitored regularly, when the pile temperature rises to 55-65°C, stirring and turning are carried out, so that the material is uniformly heated and the fermentation process is accelerated, generally 3-4 times of turning are needed, and the whole fermentation period lasts for 45-60 days;

[0064] S4: soil preparation: the tea garden stepped ground surface is simply leveled, large stones, weeds and sundries are removed, the ground surface is relatively leveled, and then the remediated and improved soil after fermentation is spread.

[0065] In the description of the present specification, the description referring to the terms "one embodiment", "example", "specific example" and the like means that the specific features, structures, materials or characteristics described in connection with the embodiment or example are contained in at least one embodiment or example of the present application. In the present specification, the illustrative description of the above terms does not necessarily refer to the same embodiment or example. Moreover, the specific features, structures, materials or characteristics described can be combined in any one or more embodiments or examples in a suitable manner.

[0066] The preferred embodiments of the application disclosed above are only used to help explain the application. The preferred embodiments do not describe all the details, nor limit the application to the specific embodiments described. Obviously, many modifications and variations can be made according to the content of the present specification. The present specification selects and specifically describes these embodiments in order to better explain the principles and practical applications of the application, so that those skilled in the art can well understand and utilize the application. The application is limited only by the claims and their full scope and equivalents.

Claims

1. A device for soil remediation and improvement in tea gardens, comprising a movable base, characterized in that, A feeding hopper is provided above the base, and a conveying cylinder extending to the right is connected to the bottom of the feeding hopper; A spiral conveyor blade is installed rotating inside the conveyor cylinder. The bottom of the conveyor cylinder is connected to a fermentation tank through a guide pipe, and the bottom of the fermentation tank is connected to a discharge pipe. The fermenter is also fixed on the base body, and a dosing mechanism is provided on the top of the fermenter. The dosing mechanism includes nozzles, and multiple nozzle arrays are installed on the fermenter, and multiple nozzles are connected to the same annular pipe. The annular pipe is connected to a dosing box installed on the base body. The conveying cylinder is connected to a mixing conveying assembly, which is used to convey organic materials into the conveying cylinder and mix them with the soil to be remediated. A conical mesh cylinder is installed inside the fermenter and at the lower opening of the feed pipe. The bottom of the conical mesh cylinder is connected to the inner wall of the fermenter, and its upper opening is sealed. The fermenter is equipped with an eccentric stirring mechanism, which includes a shaft that is vertically rotatably installed inside the fermenter. Multiple stirring rods are equidistantly installed on the shaft, and the stirring rods located at the bottom are in contact with the bottom of the fermenter tube. A disc is installed at the top of the stirring rod, and the disc is located at the upper opening of the conical mesh cylinder. A guide groove is radially opened on the upper surface of the disc, and a sliding block is slidably installed in the guide groove through a spring component. An eccentric disk is slidably mounted on the upper surface of the disk, and the eccentric disk is connected to the sliding block; The stirring eccentric mechanism also includes an electric push rod. The cylinder of the electric push rod is rotatably mounted in a cavity opened at the top of the stirring rod via a bearing, and the output rod of the electric push rod is connected to the disc. The top of the stirring rod has multiple square insertion holes, and at least two square insertion blocks are fixed on the lower surface of the disc, with the square insertion blocks corresponding to the square insertion holes. The inner wall of the fermenter is provided with multiple vertical guide grooves arranged in a circular array, and a connecting slider is slidably installed in each vertical guide groove. A spring is connected between the connecting slider and the groove wall of the vertical guide groove. The outer ring of the bottom of the conical mesh 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 connecting slider of multiple circumferential arrays. The top opening of the cone-shaped mesh cylinder is fixed with a cone-shaped boss, and the diameter of the cone-shaped boss is the same as the inner diameter of the guide pipe; The opening of the vertical guide channel is equipped with a segmented elastic membrane. The elastic membrane is connected to the connecting slider and the upper and lower bottoms of the vertical guide channel. The lower opening of the guide pipe is connected to a trumpet cylinder through an elastic hose, and the bottom opening diameter of the trumpet cylinder is larger than the top cylinder diameter of the conical mesh cylinder. The outer ring of the tapered boss has multiple recessed square holes, and a vibrating rod is slidably connected to the recessed square holes through a spring. The outer end of the vibrating rod contacts the inner wall of the lower opening of the horn.

2. The equipment for soil remediation and improvement in tea gardens according to claim 1, characterized in that, The mixing and conveying assembly includes a mixing cylinder, which is connected to a conveying cylinder through a bottom conduit and a valve body is installed on the conduit. Multiple feeding hoppers are connected to the top of the mixing cylinder, and different types of organic fertilizers are added to each feeding hopper. An agitator is installed inside the mixing cylinder.

3. The equipment for soil remediation and improvement in tea gardens according to claim 1, characterized in that, The feed hopper is equipped with symmetrically arranged crushing rollers that rotate via a shaft. The fermentation tank is equipped with multiple interconnected collection boxes, and the openings of the collection boxes correspond to the bottom sidewalls of the conical mesh cylinder.

4. A method for soil remediation and improvement in tea gardens, applicable to the soil remediation and improvement equipment for tea gardens as described in any one of claims 1 to 3, characterized in that, The method includes the following steps: S1: Material selection: Determine the mixing ratio of organic fertilizer and soil remediation agent based on 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 into 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°C, the material is stirred and turned to ensure that the material is heated evenly and to accelerate the fermentation process. Generally, the material needs to be turned 3-4 times. The entire fermentation cycle lasts 45-60 days. S4: Soil preparation: The surface of the tea garden terraces is simply leveled, large stones, weeds and debris are removed to make the ground relatively flat, and then the repaired, improved and fermented soil is spread.

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