Preparation device and preparation method of acidified soil conditioner

Abstract

The invention relates to the technical field of soil remediation, and discloses an acidified soil conditioner preparation device which comprises a premixing bin and a main mixing bin, the premixing bin is arranged at the top of the main mixing bin, and the premixing bin and the main mixing bin are communicated through a first conveying pipe in the center and a second conveying pipe on the edge. The partition piece can ascend and descend to partition the premixing bin into at least three independent premixing cavities or combine the premixing bin into a single cavity, the liftable partition piece allows the premixing bin to be switched between the multiple independent cavities and the single cavity, the requirement for isolation pretreatment or batch mixing of different raw materials is met, the premixing bin is suitable for treating various raw materials, the requirement for complex formulas is met, and the premixing bin is suitable for various raw materials. The independent premixing mode realizes isolation pretreatment for sensitive components, chemical reaction failure is avoided, and the method has the characteristics of high practicability and'advantage 2 '.

Description

Technical Field

[0001] The present invention relates to the technical field of soil remediation, and specifically to a preparation device and a preparation method for an acidified soil conditioner. Background Art

[0002] An acidified soil conditioner is a substance used to improve soil that has been affected by acidification and impacts agricultural production. With the development of industrialization and agricultural intensification, the problem of soil acidification has become increasingly serious, which not only leads to a decline in soil fertility but also affects the growth and yield of crops. Acidified soil conditioners usually contain components such as lime, organic matter, humic acid, slow-release fertilizers, etc. By adjusting the soil pH value, increasing the organic matter content, improving the soil structure, etc., the fertility and productivity of the soil are restored.

[0003] However, the preparation process of the conditioner faces multiple technical challenges: High raw material complexity: The formula usually contains raw materials in multiple forms such as powders (lime), granules (organic fertilizers), and liquids (humic acid solutions). During mixing, problems such as stratification, caking, or excessive reactions (such as direct contact between strongly acidic liquids and lime causing violent reactions) are likely to occur; Strict environmental control requirements: Microbial inoculants need to survive in a low-temperature and high-humidity environment, while alkaline raw materials such as lime require dry conditions. Traditional equipment can only provide overall temperature and humidity control and cannot manage different zones separately; Single mixing mode: Existing equipment mostly uses a single mixing chamber and cannot flexibly handle complex formulas. For example, sensitive components (such as strong acid liquids and alkaline lime) need to be isolated and pretreated, and complex formulas need to be completed in different equipment in stages, resulting in low efficiency and high costs; Insufficient mixing uniformity: Traditional stirring equipment often needs to extend the mixing time or increase energy consumption due to material stratification (such as powders sinking and liquids floating), and it is difficult to meet the requirements of industrial production.

[0004] In response to the above problems, the existing technology has the following core limitations: Rigid mixing mode: It cannot flexibly switch between independent premixing (isolating and treating sensitive components) and overall mixing (feeding materials step by step to avoid excessive reactions), which limits the applicability of complex formulas; Coarse environmental control: Lack of zoned temperature and humidity control for different raw materials, resulting in the inactivation of microorganisms or a decline in the performance of raw materials; Poor expandability: The equipment is difficult to quickly adjust the number of chambers or functions and is difficult to meet the requirements of multi-component customization. Therefore, it is necessary to design a preparation device and a preparation method for an acidified soil conditioner with strong practicality and 《Advantage 2》. Summary of the Invention

[0005] The purpose of the present invention is to provide a preparation device and a preparation method for an acidified soil conditioner to solve the problems raised in the above background art.

[0006] To solve the above technical problems, the present invention provides the following technical solutions: An acidified soil conditioner preparation device includes a premixing bin and a main mixing bin. The premixing bin is arranged on top of the main mixing bin, and the two are connected through a central conveying pipe 1 and an edge conveying pipe 2. A liftable partition is provided in the premixing bin. The partition can be lifted or lowered to divide the premixing bin into at least three independent premixing chambers or combine them into a single chamber. Each premixing chamber is provided with a pre-stirring member. The pre-stirring members can be synchronously stirred through a unified driving member 1, or individually driven by independent driving members to achieve personalized stirring. The conveying pipe 1 penetrates through the center of the premixing bin and the main mixing bin and is unblocked when the partition is raised. The conveying pipe 2 is independently connected to each premixing chamber and is connected to the corresponding premixing chamber when the partition is lowered. A main stirring member is provided in the main mixing bin, and a driving member 2 for driving the main stirring member is provided at the bottom of the main mixing bin. Temperature and humidity control devices 1 corresponding to each premixing chamber independently are provided in the premixing bin, and a temperature and humidity control device 2 and a pH sensor are provided in the main mixing bin for regulating the mixing environment parameters.

[0007] According to the above technical solution, the partition includes a cylinder, a sleeve, a lifting cylinder, a nested plate, and a lifting plate. The cylinder and the sleeve are fixedly installed at the central position in the premixing bin. The cylinder is located inside the sleeve, and its telescopic end is fixedly installed with the lifting cylinder. At least three nested plates are fixedly installed on the side wall of the sleeve. The peripheral wall of the lifting cylinder is fixedly installed with lifting plates corresponding to the nested plates. The lifting plates are installed in the nested plates in a lifting and movable manner. Communication ports are commonly opened on the nested plates and the lifting plates. When the partition is lowered, adjacent premixing chambers are closed through the communication ports of the nested plates and the lifting plates to form independent premixing chambers. When the partition is raised, the communication ports are unblocked to connect all the premixing chambers.

[0008] According to the above technical solution, the pre-stirring member includes a pre-stirring shaft and pre-stirring rods. The pre-stirring shaft is symmetrically and movably installed in the premixing chamber. The pre-stirring rods are arranged in a linear array along the axial direction of the pre-stirring shaft and are evenly distributed in a circumferential manner.

[0009] According to the above technical solution, the driving member 1 includes a servo motor 1, a transmission gear 1, and a transmission gear 2. The servo motor 1 is fixedly installed at the upper end of the premixing bin, and its output end is fixedly installed with the transmission gear 1. The upper end of the pre-stirring shaft penetrates through the upper end of the premixing bin and is fixedly installed with the transmission gear 2. The transmission gear 2 is respectively meshed and connected with the transmission gear 1.

[0010] According to the above technical solution, the main stirring member includes a main stirring shaft, main stirring rods, a central shaft, spiral lifting blades, and a conical guiding head. The central shaft is movably installed at the middle position of the main mixing bin (2), and the spiral lifting blades are arranged on the central shaft. The conical guiding head is fixedly installed at the upper end of the central shaft. The main stirring shafts are arranged in a circumferential array on the peripheral wall of the central shaft. The main stirring rods are arranged in a linear array along the axial direction of the main stirring shaft and are evenly distributed in a circumferential manner.

[0011] According to the above technical solution, the second driving member includes a second servo motor, a third transmission gear, and a fourth transmission gear. The second servo motor is fixedly installed at the lower end of the main mixing bin, and the output end is fixedly installed with the third transmission gear. The lower end of the main stirring shaft penetrates through the main mixing bin and is fixedly installed with the fourth transmission gear. The lower end of the central shaft is fixedly connected to the fourth transmission gear, and the fourth transmission gear is respectively meshed and connected to the third transmission gear.

[0012] According to the above technical solution, the first temperature and humidity control device and the second temperature and humidity control device have the same structure and similar functions. The first temperature and humidity control device includes a first temperature sensor, a first humidity sensor, a heating plate, a water supply pipe, and an atomizing nozzle. The first temperature sensor and the first humidity sensor are respectively fixedly installed at the top of the inner part of the premixing chamber. The heating plate is inlaid on the side wall of the premixing chamber. The water supply pipe is arranged through the side wall of the premixing chamber, and the end is fixedly installed with the atomizing nozzle.

[0013] According to the above technical solution, the premixing bin includes a first top cover, a first bin body, a first bottom plate, a first gearbox, and a feed pipe. The first top cover, the first bin body, and the first bottom plate are sequentially fixedly connected by bolts from top to bottom. The first gearbox is arranged at the upper end of the first top cover and hermetically wraps the first transmission gear and the second transmission gear. The first servo motor is fixedly installed at the upper end of the first gearbox. The feed pipe is arranged on the side wall of the premixing bin and one end is connected to the corresponding inner part of the premixing chamber.

[0014] According to the above technical solution, the main mixing bin includes a second top cover, a second bin body, a second bottom plate, a second gearbox, a support leg, and a feeding pipe. The second top cover, the second bin body, and the second bottom plate are sequentially fixedly connected by bolts from top to bottom. The second gearbox is arranged at the lower end of the second bottom plate and hermetically wraps the third transmission gear and the fourth transmission gear. The second servo motor is fixedly installed at the lower end of the second gearbox. At least one feeding pipe is arranged at the upper end of the second top cover.

[0015] A preparation method of an acidified soil conditioner includes the following steps: S1, Premixing bin mode selection: Select the mixing mode of the premixing bin according to the raw material characteristics: Mode 1: The premixing bin is divided into multiple independent premixing chambers by a partition member. Lime powder, organic matter particles, and liquid raw materials are respectively put into each chamber through the feed pipe. Start the first driving member to drive the pre-stirring member to stir independently, and use the first temperature and humidity control device to independently regulate the environmental parameters of each chamber; Mode 2: Raise the partition member to make the flow ports of the lifting plate and the nested plate communicate. Put the raw materials in sequence, first powder, then liquid, and then particles, and adjust the parameters of the first temperature and humidity control device in different time periods; S2, Premixed material transportation: In Mode 1, the materials in each premixing chamber are independently transported to the main mixing bin through the second conveying pipe; In Mode 2, the mixed materials are transported to the main mixing bin through the first conveying pipe; S3, Final mixing in the main mixing bin: Start the second driving part to drive the main stirring part, lift the material through the spiral lifting piece and cooperate with the main stirring rod for radial diffusion. At the same time, supplement the microbial inoculant through the feeding pipe, and use the second temperature and humidity control part to maintain the appropriate temperature and humidity in the main mixing bin; S4. Dynamic monitoring and regulation: The data is fed back in real time through the first temperature sensor and the first humidity sensor, and the controller controls the heating plate and the atomizing nozzle to adjust the premixing environment. The mixing process is dynamically monitored and regulated through the second temperature and humidity control part and the pH sensor in the main mixing bin.

[0016] Compared with the prior art, the beneficial effects achieved by the present invention are as follows: (1) Flexible cavity division processing: The liftable partition allows the premixing bin to switch between multiple independent cavities and a single cavity, adapting to the isolation pretreatment or batch mixing requirements of different raw materials, suitable for processing various raw materials (such as powders, granules, liquids), meeting complex formula requirements. The independent premixing mode realizes the isolation pretreatment of sensitive components (such as microbial inoculants and strongly acidic raw materials) to avoid chemical reaction failure. The overall mixing mode avoids direct contact and agglomeration by stepwise feeding (powder, liquid, granule), and is suitable for large-scale continuous production; (2) Precise environment control: The temperature and humidity in the bin are monitored and adjusted in real time to ensure that the raw materials are mixed under the best conditions, avoiding cross-interference or reaction out of control. A pH sensor is set in the main mixing bin to dynamically adjust the acidity and alkalinity to ensure the stable performance of the final product; (3) Three-dimensional mixing technology: The bottom material is forcibly lifted through the spiral lifting piece, dispersed to the surrounding by the conical deflector head, and the main stirring rod performs high-speed shearing mixing to form a closed-loop cycle of "lifting, dispersing, mixing, and sinking", effectively solving the problems of stratification and caking, and being suitable for the uniform mixing of lime powder prone to precipitation, high-density particles (such as sulfur) and liquids; (4) Dual driving mode: The synchronous driving drives all the pre-stirring parts through a single servo motor, reducing costs and simplifying control (such as homogeneous powder mixing). The independent driving configures an independent motor for each premixing cavity, supporting differential stirring (such as high-speed crushing of particles and low-speed mixing of liquids), and improving the mixing accuracy; (5) Strong adaptability: The partition and stirring parameters can be flexibly adjusted, suitable for small-scale experimental tests and large-scale continuous production, reducing raw material waste and environmental pollution, and meeting the requirements of green production. Description of the drawings

[0017] The drawings are used to provide a further understanding of the present invention, and constitute a part of the specification. Together with the embodiments of the present invention, they are used to explain the present invention, and do not constitute a limitation to the present invention. In the drawings: Figure 1 is the first three-dimensional schematic diagram of the present invention; Figure 2is the second three-dimensional schematic diagram of the present invention; Figure 3 is the third three-dimensional schematic diagram of the present invention; Figure 4 is the first partial three-dimensional schematic diagram of the present invention; Figure 5 is the second partial three-dimensional schematic diagram of the present invention; Figure 6 is the third partial three-dimensional schematic diagram of the present invention; Figure 7 is the fourth partial three-dimensional schematic diagram of the present invention; Figure 8 is the fifth partial three-dimensional schematic diagram of the present invention; Figure 9 is the sixth partial three-dimensional schematic diagram of the present invention; Figure 10 is the seventh partial three-dimensional schematic diagram of the present invention; In the figure: 1 - premixing bin, 101 - top cover one, 102 - bin body one, 103 - bottom plate one, 104 - gearbox one, 105 - feed pipe, 2 - main mixing bin, 201 - top cover two, 202 - bin body two, 203 - bottom plate two, 204 - gearbox two, 205 - support leg, 206 - feeding pipe, 3 - conveying pipe one, 4 - conveying pipe two, 5 - partition member, 501 - cylinder, 502 - sleeve, 503 - lifting cylinder, 504 - nested plate, 505 - lifting plate, 506 - circulation port, 6 - pre-stirring member, 601 - pre-stirring shaft, 602 - pre-stirring rod, 7 - driving member one, 701 - servo motor one, 702 - driving gear one, 703 - driving gear two, 8 - main stirring member, 801 - main stirrer, 802 - main stirring rod, 803 - central shaft, 804 - spiral lifting blade, 805 - conical guiding head, 9 - driving member two, 901 - servo motor two, 902 - driving gear three, 903 - driving gear four, 10 - temperature and humidity control device one, 1001 - temperature sensor one, 1002 - humidity sensor one, 1003 - heating plate, 1004 - water delivery pipe, 1005 - atomizing nozzle, 11 - temperature and humidity control device two. Detailed implementation manners

[0018] Next, the technical solutions in the embodiments of the present invention will be clearly and completely described in conjunction with the accompanying drawings in the embodiments of the present invention. Obviously, the described embodiments are only a part of the embodiments of the present invention, rather than all the embodiments. Based on the embodiments of the present invention, all other embodiments obtained by those of ordinary skill in the art without creative efforts shall fall within the protection scope of the present invention.

[0019] Please refer to Figures 1-10, the present invention provides a technical solution: an acidified soil conditioner preparation device, including a premixing bin 1 and a main mixing bin 2. The premixing bin 1 is arranged on top of the main mixing bin 2, and the two are connected through a central conveying pipe 1 and an edge conveying pipe 2. A liftable partition 5 is arranged in the premixing bin 1. The partition 5 can be lifted or lowered to divide the premixing bin 1 into at least three independent premixing chambers or combine them into a single chamber. Each premixing chamber is provided with a pre-stirring member 6. The pre-stirring member 6 can be synchronously stirred through a unified driving member 7, or individually driven by independent driving members to achieve personalized stirring. The conveying pipe 1 passes through the centers of the premixing bin 1 and the main mixing bin 2 and is penetrated when the partition 5 is lifted. The conveying pipe 2 is independently connected to each premixing chamber and is connected to the corresponding premixing chamber when the partition 5 is lowered. A main stirring member 8 is arranged in the main mixing bin 2, and a driving member 2 for driving the main stirring member 8 is arranged at the bottom of the main mixing bin 2. A temperature and humidity control device 10 corresponding to each premixing chamber independently is arranged in the premixing bin 1, and a temperature and humidity control device 11 and a PH sensor are arranged in the main mixing bin 2 for regulating the mixing environment parameters; Through the design of components such as the premixing bin 1, the main mixing bin 2, the conveying pipe 1, the conveying pipe 2 and the partition 5, the present application realizes the staged and precise mixing of raw materials and environmental control. The liftable partition 5 allows the premixing bin 1 to switch between at least three independent chambers and a single chamber, adapting to the isolation pretreatment or batch mixing requirements of different raw materials. The position of the partition 5 can be flexibly adjusted according to the quantity of raw materials (such as limestone, biochar, organic fertilizer, etc.) to achieve personalized premixing. A high-temperature resistant silicone rubber sealing ring is equipped at the edge of the partition 5 to prevent material leakage during mode switching. Each premixing chamber is equipped with a temperature and humidity control device 10, which can set the best pretreatment conditions for different raw materials (such as acid regulators, organic matter, microbial inoculants) to avoid cross-interference. The stirring member 1 can be set to a synchronous driving mode or an independent driving mode. In the synchronous driving mode, through the gear linkage system of the driving member 7, the stirring shafts of multiple chambers rotate synchronously, which is suitable for homogeneous raw materials (such as powders). In the independent driving mode, each premixing chamber is equipped with an independent motor, supporting differential stirring (such as high-speed crushing of granular raw materials and low-speed mixing of liquids). In the attached drawings of the specification of the present application, it is the synchronous driving mode. For the independent driving mode, only an independent motor needs to be set, and no schematic illustration is made. Corresponding control valves are arranged on the conveying pipe 1 and the conveying pipe 2, which are common technical means in the technical field and will not be elaborated here. A PH sensor is arranged in the main mixing bin 2. The premixing bin can be selectively configured according to the reaction characteristics of the raw materials. If the process flow has avoided reaction risks through chamber isolation (mode one) or feeding in different time periods (mode two), then the premixing bin 1 does not need to be additionally equipped with a PH sensor to reduce the complexity and cost of the equipment; This application has two working modes: Mode 1 is independent premixing and chambered conveying. The partition 5 descends, dividing the premixing chamber 1 into multiple independent chambers (set to 3 in this application). Each chamber processes a single raw material (powder chamber, granule chamber, liquid chamber). According to the type of raw material (such as acid, alkali, microorganism) or the demand for processing volume, the number of chambers can be increased or decreased (for example, 5 chambers for processing complex formulations) to achieve customized configuration. The pre-stirring components in each chamber adjust parameters according to the characteristics of the raw material. For powder raw materials: high-speed stirring to prevent caking (such as lime powder, rotation speed 200 - 300 rpm). For liquid raw materials: low-speed stirring to avoid splashing (such as humic acid solution, rotation speed 50 - 100 rpm). For granule raw materials: intermittent stirring to reduce wear (such as slow-release fertilizer granules, start-stop cycle 30 s / 10 s). And independent environmental control is carried out. The temperature and humidity control device 10 sets the optimal conditions for each chamber. At the same time, it is conveyed in the technological sequence through the edge conveying pipe 2 to avoid premature contact and failure of sensitive components (such as microorganisms and strong acids). Mode 2 is overall mixing and step-by-step feeding. The partition 5 rises, and the premixing chamber 1 is combined into a single mixing space with an enlarged volume. And the central conveying pipe 1 remains open for conveying the materials after final mixing. The first stage (powder addition): The main raw material (such as bentonite powder) is put in, and the pre-stirring component runs at a low speed (80 rpm) to form a uniform base. The second stage (liquid spraying): The acidifying liquid (such as diluted sulfuric acid) is sprayed, and the stirring speed is increased to 150 rpm to promote infiltration. The third stage (granule incorporation): The slow-release granules (such as sulfur granules) are added, and the speed is reduced to 100 rpm to prevent breakage. The temperature and humidity control device 10 adjusts according to the stage to achieve dynamic environmental adjustment. Step-by-step mixing avoids caking caused by direct contact between powder and liquid (such as lime hardening when encountering water), which is suitable for large-scale continuous production and reduces the number of equipment starts and stops; Specifically, the partition 5 includes a cylinder 501, a sleeve 502, a lifting cylinder 503, a nested plate 504 and a lifting plate 505. The cylinder 501 and the sleeve 502 are fixedly installed at the central position in the premixing chamber 1. The cylinder 501 is located inside the sleeve 502 and the telescopic end is fixedly installed with the lifting cylinder 503. At least three nested plates 504 are fixedly installed on the side wall of the sleeve 502. The circumferential wall of the lifting cylinder 503 is fixedly installed with lifting plates 505 corresponding to the nested plates 504. The lifting plates 505 are installed in the nested plates 504 in a lifting and movable manner. The nested plates 504 and the lifting plates 505 are jointly provided with a circulation port 506. When the partition 5 descends, the adjacent premixing chambers are closed through the circulation port 506 of the nested plates 504 and the lifting plates 505 to form independent premixing chambers. When the partition 5 rises, the circulation port 506 penetrates to connect all the premixing chambers; When the cylinder 501 drives the lifting cylinder 503 to rise, the lifting plate 505 rises within the nested plate 504, and the flow ports 506 on the lifting plate 505 align with the flow ports 506 on the nested plate 504, allowing the material to pass through. When the cylinder 501 drives the lifting cylinder 503 to descend, the lifting plate 505 descends within the nested plate 504, and the flow ports 506 on the lifting plate 505 are offset from the flow ports 506 on the nested plate 504, preventing the material from passing through. By controlling the telescopic movement of the cylinder 501, the separation or connection of the premixing bin 1 can be achieved, thereby realizing the separation or combination of the premixing bin 1. Through the telescopic movement of the cylinder 501, the separation or connection of the premixing bin 1 can be flexibly controlled to adapt to different production requirements; Specifically, the pre-stirring member 6 includes a pre-stirring shaft 601 and pre-stirring rods 602. The pre-stirring shaft 601 is symmetrically and movably installed within the premixing cavity, and the pre-stirring rods 602 are arranged in a linear array along the axial direction of the pre-stirring shaft 601 and are evenly distributed circumferentially; The design of the linear array and circumferential even distribution of the pre-stirring rods 602 increases the contact area of stirring, makes the raw material mixing more uniform, can effectively improve the stirring efficiency, and ensures that different raw materials are fully mixed in the premixing stage. The pre-stirring shaft 601 can be driven by the first driving member 7 to achieve synchronous stirring, or can be driven by independent driving members respectively to achieve personalized stirring. The choice of driving method depends on specific production requirements and raw material characteristics; Specifically, the first driving member 7 includes a servo motor 701, a driving gear 702, and a driven gear 703. The servo motor 701 is fixedly installed at the upper end of the premixing bin 1, and the output end is fixedly installed with the driving gear 702. The upper end of the pre-stirring shaft 601 penetrates through the upper end of the premixing bin 1 and is fixedly installed with the driven gear 703. The driven gear 703 is respectively meshed and connected with the driving gear 702; The servo motor 701 can adjust the rotation speed, rotation direction, and start-stop time through programming to adapt to the stirring requirements of different raw materials (for example, liquids need low speed to prevent splashing, and powders need high speed for uniform dispersion). A single servo motor 701 drives multiple pre-stirring shafts 601 to achieve synchronous stirring through gear meshing, ensuring that the mixing rhythm of the materials in each premixing cavity is consistent; Specifically, the main stirring member 8 includes a main stirring shaft 801, main stirring rods 802, a central shaft 803, spiral lifting blades 804, and a conical guiding head 805. The central shaft 803 is movably installed at the middle position of the main mixing bin (2), and the spiral lifting blades 804 are arranged on the central shaft 803. The conical guiding head 805 is fixedly installed at the upper end of the central shaft 803. The main stirring shafts 801 are arranged in a circumferential array on the peripheral wall of the central shaft 803, and the main stirring rods 802 are arranged in a linear array along the axial direction of the main stirring shaft 801 and are evenly distributed circumferentially; The spiral lifting blade 804 continuously lifts the bottom lime powder to the top, the conical deflector 805 disperses it, and the main stirring rod 802 rotates at a high speed to break up the lime powder lumps. At the same time, the liquid humic acid and granular organic fertilizer are forced to shear and blend. When the spiral lifting blade 804 rotates, it pushes the bottom materials upward, breaking the layering phenomenon and realizing the longitudinal circulation of the materials in the main mixing bin. For the particles that are easy to precipitate (such as lime powder), they are forced to the top and dispersed after being lifted, avoiding accumulation at the bottom. The spiral lifting blade 804 continuously pushes the bottom materials upward, and the conical deflector 805 throws the materials to the periphery of the main mixing bin 1. The falling materials enter the action area of the main stirring shaft 801, are sheared and mixed by the stirring rod, and then sink to the bottom again, forming a closed-loop cycle of "lifting, dispersing, mixing, and sinking"; Specifically, the second driving member 9 includes a second servo motor 901, a third transmission gear 902, and a fourth transmission gear 903. The second servo motor 901 is fixedly installed at the lower end of the main mixing bin 2, and the output end is fixedly installed with the third transmission gear 902. The lower end of the main stirring shaft 801 penetrates the main mixing bin 2 and is fixedly installed with the fourth transmission gear 903. The lower end of the central shaft 803 is fixedly connected to the fourth transmission gear 903, and the fourth transmission gear 903 is respectively meshed with the third transmission gear 902; When the second servo motor 901 is started, the third transmission gear 902 rotates, meshing with the fourth transmission gear 903. The main stirring shaft 801 rotates with the fourth transmission gear 903, driving the spiral lifting blade 804 and the main stirring rod 802 to work. The layout of the second servo motor 901 being placed at the lower part and the gear transmitting power laterally avoids occupying the top space of the main mixing bin 2, facilitating the vertical docking of the pre-mixing bin 1 and the main mixing bin 2 (such as the through design of the first conveying pipe 3); Specifically, the first temperature and humidity control device 10 and the second temperature and humidity control device 11 have the same structure and similar functions. The first temperature and humidity control device 10 includes a first temperature sensor 1001, a first humidity sensor 1002, a heating plate 1003, a water delivery pipe 1004, and an atomizing nozzle 1005. The first temperature sensor 1001 and the first humidity sensor 1002 are respectively fixedly installed at the top inside the pre-mixing chamber. The heating plate 1003 is embedded in the side wall of the pre-mixing chamber. The water delivery pipe 1004 penetrates through the side wall of the pre-mixing chamber and the end is fixedly installed with the atomizing nozzle 1005; The temperature sensor 1001 is fixed at the center of the top of the premixing chamber to avoid interference with the pre-stirring part 6 and at the same time is far from the side wall heating plate 1003 to prevent direct thermal radiation from interfering with the readings. The humidity sensor 1002 is installed side by side with the temperature sensor 1001 on the top of the bin, but close to the downstream direction of the atomizing nozzle 1005 to capture the humidity change after humidification. The heating plate 1003 is embedded in the inner layer of the side wall of the premixing chamber, and the outer layer is made of heat-insulating material (such as ceramic fiber) to reduce heat dissipation. A plurality of temperature sensors 1001, humidity sensors 1002, heating plates 1003, water pipes 1004 and atomizing nozzles 1005 are arranged in the main mixing bin 2, and uniform heating is achieved through independent temperature control. The heating plate 1003 is controlled in zones and only targets the heating of low-temperature areas to reduce energy consumption; Specifically, the premixing bin 1 includes a top cover 101, a bin body 102, a bottom plate 103, a gearbox 104 and a feed pipe 105. The top cover 101, the bin body 102 and the bottom plate 103 are sequentially fixedly connected by bolts from top to bottom. The gearbox 104 is arranged at the upper end of the top cover 101 and hermetically wraps the driving gear 702 and the driving gear 703. The servo motor 701 is fixedly installed at the upper end of the gearbox 104. The feed pipe 105 is arranged on the side wall of the premixing bin 1 and one end is connected to the corresponding premixing chamber; The top cover 101, the bin body 102 and the bottom plate 103 are connected by standard bolts, which supports quick disassembly for cleaning or expansion and transformation, such as increasing the height of the bin body 102. The gearbox 104 is integrated into the top cover 101 to protect the transmission system; Specifically, the main mixing bin 2 includes a top cover 201, a bin body 202, a bottom plate 203, a gearbox 204, legs 205 and a feeding pipe 206. The top cover 201, the bin body 202 and the bottom plate 203 are sequentially fixedly connected by bolts from top to bottom. The gearbox 204 is arranged at the lower end of the bottom plate 203 and hermetically wraps the driving gear 902 and the driving gear 903. The servo motor 901 is fixedly installed at the lower end of the gearbox 204. At least one feeding pipe 206 is arranged at the upper end of the top cover 201; The top cover 201, the bin body 202, the bottom plate 203, the gearbox 204 and the legs 205 are installed modularly. The feeding pipe 206 is the core component for dynamically adjusting the mixing process in the main mixing bin 2. Multiple feeding pipes 206 support parallel operations (such as simultaneously adding water and additives), shortening the mixing cycle. If different physical state materials such as liquid, powder and granule need to be supplemented at the same time, independent pipes are required to avoid cross-contamination, and quick-change interfaces are used for connection to adapt to different material types; A method for preparing an acidified soil conditioner includes the following steps: S1, raw material preparation Main components: lime (CaO or CaCO3), organic matter (such as humic acid), microbial inoculant (such as nitrogen-fixing bacteria), binder (such as sodium carboxymethyl cellulose), trace elements (such as zinc, iron).

[0020] Raw material treatment: Crush lime and organic matter to appropriate particle sizes respectively to ensure good fluidity. The microbial inoculant needs to maintain its activity and should be stored and transported at low temperatures.

[0021] S2, Premixing bin operation Mode 1: Independent cavity premixing S21, Divide the premixing bin 1 into three independent cavities according to the types and quantities of raw materials.

[0022] S22, Add lime powder to cavity 1, start the pre-stirring part 6 for stirring, and adjust the temperature and humidity control part 10 to a dry environment suitable for lime (temperature 25°C, humidity 30%).

[0023] S23, Add organic matter particles to cavity 2, start the pre-stirring part 6 for stirring, and adjust the temperature and humidity control part 10 to a slightly higher humidity (temperature 25°C, humidity 60%) to promote the decomposition of organic matter.

[0024] S24, Add liquid (such as a solution containing trace elements) to cavity 3, start the pre-stirring part 6 for stirring, and adjust the temperature and humidity control part 10 to a high humidity (temperature 25°C, humidity 90%) to ensure uniform distribution of the liquid.

[0025] S25, After premixing, convey the materials in each cavity to the main mixing bin 2 through the conveying pipe 2 4.

[0026] Mode 2: Overall premixing S21, Raise the partition part 5 to make the premixing bin 1 into an overall mixing space.

[0027] S22, Feed different raw materials in sequence: S221, Add lime powder, start the pre-stirring part 6 for stirring, and adjust the temperature and humidity to a dry environment (temperature 25°C, humidity 30%).

[0028] S222, Spray the liquid containing trace elements, adjust the temperature and humidity to a high humidity (temperature 25°C, humidity 90%), and continue stirring.

[0029] S223, Add organic matter particles, adjust the temperature and humidity to a moderate humidity (temperature 25°C, humidity 60%), and continue stirring.

[0030] S23, After premixing, convey the materials to the main mixing bin 2 through the conveying pipe 1 3.

[0031] S3, Main mixing in the main mixing bin S31. After the materials enter the main mixing bin 2, start the main stirring member 8 for three-dimensional stirring to ensure uniform mixing of the materials.

[0032] S32. Adjust the temperature and humidity control device II 11 to an environment suitable for the microbial inoculant (temperature 30°C, humidity 70%).

[0033] S33. During the stirring process, supplement the microbial inoculant through the feeding pipe 206 to ensure its uniform distribution.

[0034] S34. Continuously stir until evenly mixed, monitor the pH value, and ensure that the target acidity and alkalinity are reached.

[0035] S4. Quality inspection and adjustment S41. Take samples to detect key indicators such as pH value, water content, and active ingredient content.

[0036] S42. According to the test results, adjust the raw material ratio or process parameters (such as temperature, humidity, stirring time).

[0037] S43. After ensuring that the product meets the quality standards, carry out packaging and storage.

[0038] Example 1: Independent premixing mode (Mode 1)

[0039] Scenario: To prepare a complex formula modifier containing a microbial inoculant, sensitive components need to be isolated and treated (such as strong acidic liquid and alkaline lime powder).

[0040] Device configuration: Premixing bin 1: The partition member 5 descends, dividing the premixing bin into 3 independent premixing chambers (Chamber 1, Chamber 2, Chamber 3). Each chamber is equipped with an independent temperature and humidity control device I 10 and a pre-stirring member 6, and adopts an independent drive mode (each chamber is equipped with an independent motor).

[0041] Main mixing bin 2: It is equipped with a main stirring member 8, a temperature and humidity control device II 11, and a pH sensor.

[0042] Operation steps: Raw material preparation: Lime powder (CaCO3), humic acid particles (organic matter), trace element solution containing sulfuric acid (pH 2.0), microbial inoculant (requires low-temperature storage, and the activity requires a pH of 6 - 7).

[0043] Premixing stage: Chamber 1 (lime powder): Add 500 kg of lime powder, start the pre-stirring member to stir at a high speed of 200 rpm to prevent caking, and set the temperature and humidity control device I 10 to 25°C / 30% humidity to avoid water absorption.

[0044] Chamber Two (humic acid particles): Add 300 kg of humic acid particles, stir at a speed of 100 rpm, operate intermittently (30 seconds of stirring / 10 seconds of pause), set Temperature and Humidity Control One to 25°C / 60% humidity to promote the decomposition of organic matter.

[0045] Chamber Three (acidic liquid): Spray sulfuric acid solution containing trace elements (pH 2.0), stir at a speed of 50 rpm to avoid splashing, keep Temperature and Humidity Control One at 25°C / 90% humidity to ensure uniform distribution of the liquid.

[0046] Transport to Main Mixing Bin 2: The materials in each chamber are transported to Main Mixing Bin 1 through Delivery Pipe Two 4 in sequence (to avoid sudden pH changes caused by the mixing sequence).

[0047] Final Mixing Stage: Start the Main Stirring Component 8: The spiral lifting blade 804 rotates at 120 rpm, lifting the lime powder from the bottom to the top, the conical diversion head 805 disperses the materials, and the main stirring rod 802 shears and mixes.

[0048] Environmental Control: Adjust Temperature and Humidity Control Two to 30°C / 70% humidity, and the pH sensor monitors in real time (target pH 6.5).

[0049] Feed Supplement: Add microbial inoculant through the feed supplement pipe 206 to ensure uniform distribution.

[0050] Mixing Time: 20 minutes, the final pH is stabilized at 6.4 - 6.6, and the water content is 75%.

[0051] Quality Inspection: Detect pH, content of active ingredients (such as CaCO3 ≥ 45%), and microbial survival rate (≥ 90%), and package after meeting the standards.

[0052] Example 2: Overall Mixing Mode (Mode Two)

[0053] Scenario: Large-scale production of a general-purpose soil conditioner with insensitive raw materials that require rapid mixing (such as lime powder, humic acid solution, slow-release granules).

[0054] Device Configuration: Premixing Bin 1: The partition 5 is raised to combine into a single mixing chamber, and the pre-stirring component 6 adopts a synchronous drive mode, uniformly driven by the drive component one 7.

[0055] Main Mixing Bin 2: The configuration is the same as that in Example 1.

[0056] Operation Steps: Raw Material Preparation: Lime powder, humic acid solution, slow-release fertilizer granules.

[0057] Premixing Stage: Phase 1 (Powder Substrate): Lime powder is fed in, and the pre-stirring component is started to stir at a low speed of 80 rpm. The temperature and humidity control unit 1 is set to 25°C / 30%, forming a uniform substrate.

[0058] Phase 2 (Liquid Infiltration): Humic acid solution is sprayed, the stirring speed is increased to 150 rpm, and the humidity is increased to 90% to ensure that the liquid fully infiltrates the powder.

[0059] Phase 3 (Particle Incorporation): Sustained-release particles are added, the speed is reduced to 100 rpm, and the humidity is adjusted to 60% to prevent particle breakage.

[0060] Total mixing time: 15 minutes. After pre-mixing, it is transported to the main mixing bin 2 through the central conveying pipe 1-3.

[0061] Final mixing stage: The main stirring component 8 operates at 150 rpm, the spiral lifting blade 804 continuously lifts the material, and the PH sensor monitors the PH after mixing (target value 6.0).

[0062] Mixing time: 15 minutes. The final PH is stabilized at 5.8 - 6.2, and the uniformity reaches over 95%.

[0063] Quality inspection: PH, particle distribution uniformity, and mixing time are detected. The cost is reduced by 30% compared to Mode 1 (due to the absence of chamber control).

[0064] Example 3: Multi-chamber complex formula

[0065] Scenario: Processing a complex formula of 5 raw materials (lime, biochar, humic acid, microbial inoculant, trace element solution).

[0066] Device configuration: The pre-mixing bin is divided into 5 independent chambers (achieved by increasing the number of nested plates 504).

[0067] Operation steps: Pre-mixing stage: Chamber 1 (Lime): 200 rpm / 25°C / 30% humidity.

[0068] Chamber 2 (Biochar): 100 rpm / 25°C / 50% humidity.

[0069] Chamber 3 (Humic acid): 150 rpm / 25°C / 70% humidity.

[0070] Chamber 4 (Microbial inoculant): Intermittent stirring (30 s / 10 s) / 4°C / 60% humidity (low temperature to preserve activity).

[0071] Chamber 5 (Acidic solution): 50 rpm / 25°C / 90% humidity.

[0072] Transportation and final mixing: The materials in each cavity are transported in sequence through the second conveying pipe 4, and the pH sensor monitors and adjusts the materials in the main mixing bin 2 to the target value after final mixing.

[0073] It should be noted that in this document, relational terms such as first and second are only used to distinguish one entity or operation from another entity or operation, and do not necessarily require or imply any actual relationship or order between these entities or operations. Moreover, the term "comprising", "including" or any other variant thereof is intended to cover non-exclusive inclusion, so that a process, method, article or device comprising a series of elements includes not only those elements but also other elements not expressly listed, or elements inherent to such process, method, article or device.

[0074] Finally, it should be noted that the above are only preferred embodiments of the present invention and are not used to limit the present invention. Although the present invention has been described in detail with reference to the foregoing embodiments, those skilled in the art can still modify the technical solutions described in the foregoing embodiments, or perform equivalent replacement of some of the technical features. Any modification, equivalent replacement, improvement, etc. made within the spirit and principle of the present invention shall be included within the protection scope of the present invention.

Claims

1. A device for preparing an acidified soil conditioner, comprising a premixing bin (1) and a main mixing bin (2), characterized in that: The premixing chamber (1) is arranged on the top of the main mixing chamber (2), and the two are connected through a central conveying pipe 1 (3) and an edge conveying pipe 2 (4). A liftable partition (5) is arranged in the premixing chamber (1), and the partition (5) can be lifted to separate the premixing chamber (1) into at least three independent premixing chambers or merge them into a single chamber. Each premixing chamber is provided with a premixing element (6), and the premixing element (6) can be synchronously stirred by a unified driving element 1 (7), or driven by independent driving elements to achieve personalized stirring. The conveying pipe 1 (3) runs through The premixing chamber (1) and the main mixing chamber (2) are connected at the center when the partition (5) is raised, the second delivery pipe (4) is independently connected to each premixing chamber, and is connected to the corresponding premixing chamber when the partition (5) is lowered. A main stirring member (8) is provided in the main mixing chamber (2), and a second driving member (9) for driving the main stirring member (8) is provided at the bottom of the main mixing chamber (2). A temperature and humidity control member (10) independently corresponding to each premixing chamber is provided in the premixing chamber (1), and a temperature and humidity control member (11) and a pH sensor are provided in the main mixing chamber (2) for adjusting and controlling mixing environment parameters.

2. The device for preparing an acidified soil conditioner according to claim 1, characterized in that: The partition (5) comprises a cylinder (501), a sleeve (502), a lifting cylinder (503), a nesting plate (504) and a lifting plate (505). The cylinder (501) and the sleeve (502) are fixedly installed at a central position in the premixing bin (1). The cylinder (501) is located in the sleeve (502) and a lifting cylinder (503) is fixedly installed at the telescopic end. At least three nesting plates (504) are fixedly installed on the side wall of the sleeve (502). The peripheral wall of the lifting cylinder (503) is fixedly installed with a plurality of nesting plates (504) connected to the nesting plates. The sleeve plate (504) is provided with a lifting plate (505) corresponding to the sleeve plate (504). The lifting plate (505) is installed in the nesting plate (504) in a lifting and movable manner. The nesting plate (504) and the lifting plate (505) are provided with a flow opening (506). When the partition (5) is lowered, adjacent premixing chambers are closed through the flow openings (506) of the nesting plate (504) and the lifting plate (505) to form independent premixing chambers. When the partition (5) is raised, the flow openings (506) are connected to connect all the premixing chambers.

3. The device for preparing an acidified soil conditioner according to claim 1, characterized in that: The pre-stirring element (6) comprises a pre-stirring shaft (601) and pre-stirring rods (602). The pre-stirring shaft (601) is symmetrically and movably mounted in the pre-stirring chamber. The pre-stirring rods (602) are arranged in a linear array along the axial direction of the pre-stirring shaft (601) and are evenly distributed around the circumference.

4. The device for preparing an acidified soil conditioner according to claim 3, characterized in that: The driving member 1 (7) comprises a servo motor 1 (701), a transmission gear 1 (702) and a transmission gear 2 (703). The servo motor 1 (701) is fixedly mounted on the upper end of the premixing bin (1) and the output end is fixedly mounted with the transmission gear 1 (702). The upper end of the premixing shaft (601) passes through the upper end of the premixing bin (1) and is fixedly mounted with the transmission gear 2 (703). The transmission gear 2 (703) is respectively meshed and connected with the transmission gear 1 (702).

5. The device for preparing an acidified soil conditioner according to claim 1, characterized in that: The main stirring element (8) comprises a main stirring shaft (801), a main stirring rod (802), a central shaft (803), a spiral lifting piece (804) and a conical flow guide head (805); the central shaft (803) is movably mounted in the middle of the main mixing chamber (2) and the spiral lifting piece (804) is arranged on the central shaft (803); the conical flow guide head (805) is fixedly mounted on the upper end of the central shaft (803); the main stirring shaft (801) is arranged in a circular array on the peripheral wall of the central shaft (803); and the main stirring rods (802) are arranged in a linear array along the axial direction of the main stirring shaft (801) and are evenly distributed around the circumference.

6. The device for preparing an acidified soil conditioner according to claim 5, characterized in that: The driving member 2 (9) comprises a servo motor 2 (901), a transmission gear 3 (902) and a transmission gear 4 (903). The servo motor 2 (901) is fixedly mounted at the lower end of the main mixing chamber (2) and the output end is fixedly mounted with the transmission gear 3 (902). The lower end of the main stirring shaft (801) passes through the main mixing chamber (2) and is fixedly mounted with the transmission gear 4 (903). The lower end of the central shaft (803) is fixedly connected to the transmission gear 4 (903), and the transmission gear 4 (903) is meshedly connected with the transmission gear 3 (902).

7. The device for preparing an acidified soil conditioner according to claim 1, characterized in that: The temperature and humidity control unit 1 (10) and the temperature and humidity control unit 2 (11) have the same structure and similar functions. The temperature and humidity control unit 1 (10) comprises a temperature sensor 1 (1001), a humidity sensor 1 (1002), a heating plate (1003), a water pipe (1004) and an atomizing nozzle (1005). The temperature sensor 1 (1001) and the humidity sensor 1 (1002) are respectively fixedly installed on the top of the premixing chamber, the heating plate (1003) is embedded in the side wall of the premixing chamber, and the water pipe (1004) is arranged to penetrate the side wall of the premixing chamber and an atomizing nozzle (1005) is fixedly installed at the end.

8. The device for preparing an acidified soil conditioner according to claim 4, characterized in that: The premixing bin (1) comprises a top cover (101), a bin body (102), a bottom plate (103), a gear box (104) and a feed pipe (105). The top cover (101), the bin body (102) and the bottom plate (103) are fixedly connected in sequence from top to bottom by bolts. The gear box (104) is arranged on the upper end of the top cover (101) and seals and wraps the transmission gear (702) and the transmission gear (703). The servo motor (701) is fixedly mounted on the upper end of the gear box (104). The feed pipe (105) is arranged on the side wall of the premixing bin (1) and one end of the gear box is connected to the corresponding premixing chamber.

9. The device for preparing an acidified soil conditioner according to claim 6, characterized in that: The main mixing bin (2) comprises a top cover 2 (201), a bin body 2 (202), a bottom plate 2 (203), a gear box 2 (204), legs (205) and a feeding pipe (206). The top cover 2 (201), the bin body 2 (202) and the bottom plate 2 (203) are fixedly connected by bolts from top to bottom. The gear box 2 (204) is arranged at the lower end of the bottom plate 2 (203) and seals and wraps the transmission gear 3 (902) and the transmission gear 4 (903). The servo motor 2 (901) is fixedly mounted at the lower end of the gear box 2 (204). At least one feeding pipe (206) is arranged at the upper end of the top cover 2 (201).

10. A method for preparing an acidified soil conditioner according to any one of claims 1 to 9, characterized in that: The following steps are involved: S1, premixing bin mode selection: Select the mixing mode of the premixing bin (1) according to the characteristics of the raw materials: Mode 1: The premixing bin (1) is divided into a plurality of independent premixing chambers by a partition (5), lime powder, organic particles and liquid raw materials are respectively fed into each chamber through a feed pipe (105), a driving member 1 (7) is started to drive the premixing member (6) to stir independently, and a temperature and humidity control member 1 (10) is used to independently adjust the environmental parameters of each chamber; Mode 2: Raise the partition (5) to connect the flow opening (506) of the lifting plate (505) and the nesting plate (504), add the raw materials in sequence (first powder, then liquid, then granules), and adjust the parameters of the temperature and humidity control unit 1 (10) in different time periods; S2, premixed material transportation: In mode 1, the materials in each premixing chamber are independently transported to the main mixing chamber (2) through the second conveying pipe (4); In mode 2, the mixed material is transported to the main mixing bin (2) through the transport pipe 1 (3); S3, final mixing in main mixing bin: The second driving member (9) is started to drive the main stirring member (8), the material is lifted by the spiral lifting sheet (804) and radially diffused in cooperation with the main stirring rod (802), and microbial agents are added through the feeding pipe (206), and the temperature and humidity control unit (11) is used to maintain the appropriate temperature and humidity in the main mixing bin (2); S4, dynamic monitoring and regulation: The temperature sensor 1 (1001) and the humidity sensor 1 (1002) provide real-time data feedback, and the controller controls the heating plate (1003) and the atomizing nozzle (1005) to adjust the premixing environment. The temperature and humidity control unit 2 (11) and the pH sensor in the main mixing chamber (2) dynamically monitor and control the mixing process.

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