A multi-channel non-destructive gel fertilizer preparation device

The multi-channel non-destructive gel fertilizer preparation device solves the problems of functional component inactivation and multi-nutrient distribution in traditional gel fertilizer production, realizing diversified production and efficient and stable gel fertilizer preparation, meeting the intelligent production needs of smart agriculture.

CN224308354UActive Publication Date: 2026-06-02HENAN AGRICULTURAL UNIVERSITY
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Patent Information

Authority / Receiving Office
CN · China
Patent Type
Utility models(China)
Current Assignee / Owner
HENAN AGRICULTURAL UNIVERSITY
Filing Date
2025-07-14
Publication Date
2026-06-02

AI Technical Summary

Technical Problem

Traditional gel fertilizer production machinery suffers from problems such as high temperature and high pressure or chemical cross-linking agents causing the functional components to become inactive, single reaction systems making it difficult to achieve precise spatial distribution and synergistic controlled release of multiple nutrients, high energy consumption and poor batch stability, making it difficult to meet the diversified production needs of smart agriculture.

Method used

The multi-channel non-destructive gel fertilizer preparation device includes a mixing and storage chamber, a peristaltic pump group, a solid formation chamber, a liquid-solid separation storage tank, and a reflux device. The flow rate is precisely controlled by the peristaltic pump group synchronous extrusion system and circuit board. Combined with the temperature control module and reflux device, it achieves precise distribution of multiple nutrients and stable production.

Benefits of technology

It enables on-demand production of fertilizers in diverse forms, improves production rate and product quality stability, reduces maintenance costs, expands the scope of equipment application, and adapts to the personalized needs of different users.

✦ Generated by Eureka AI based on patent content.

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Abstract

The utility model discloses a kind of multi-channel nondestructive gel fertilizer preparation devices, including mixed liquid storage room, peristaltic pump group, central processing unit, solid formation room, liquid-solid separation reservoir and reflux equipment;The bottom of the mixed liquid storage room is connected with the liquid inlet of peristaltic pump group, the liquid outlet of peristaltic pump group is connected with one end of drop hose, the other end of drop hose is suspended and set in the just above of solid formation room;The solid formation room includes middle bottom plate and vertically set low side column body on middle bottom plate and high side column body set on the outside of low side column body.The utility model passes through setting sixteen channels peristaltic pump group synchronous extrusion system collocation circuit board accurate control flow to satisfy different user for gel fertilizer Personalized needs, improve production rate while expand the use range of equipment;Further by peristaltic pump, so that the equipment can handle gas-containing liquid and high-viscosity fluid, improve the breadth of production.
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Description

Technical Field

[0001] This utility model relates to the technical field of gel fertilizer production equipment, and in particular to a multi-channel non-destructive gel fertilizer preparation device. Background Technology

[0002] In recent years, with the rapid development of precision agriculture and green agriculture, hydrogel fertilizers have become a research hotspot due to their excellent nutrient slow-release properties, water retention, and environmental friendliness. Traditional hydrogel fertilizer production machinery faces significant technical bottlenecks: on the one hand, conventional batch reactors rely on high temperature and pressure or chemical cross-linking agents to drive the gelation process, which easily leads to the inactivation of functional components in the fertilizer (such as microbial agents, enzyme preparations, or natural organic matter); on the other hand, a single reaction system cannot achieve precise spatial distribution and synergistic controlled release of multiple nutrients (such as nitrogen, phosphorus, potassium, and trace elements), limiting the customized production of complex formulations. Furthermore, traditional processes suffer from high energy consumption and poor batch stability, making it difficult to meet the demands of smart agriculture for diversified fertilizer forms (such as microspheres, fibers, and films) and intelligent on-demand production. Addressing these issues and meeting the needs of intelligent on-demand production is an urgent technical problem to be solved. Utility Model Content

[0003] The purpose of this invention is to provide a multi-channel non-destructive gel fertilizer preparation device that enables on-demand production of fertilizers with diverse forms.

[0004] The technical solution adopted in this utility model is as follows:

[0005] A multi-channel non-destructive gel fertilizer preparation device includes a mixing storage chamber, a peristaltic pump assembly, a central processing unit, a solid formation chamber, a liquid-solid separation storage tank, and a reflux device. The bottom of the mixing storage chamber is connected to the inlet of the peristaltic pump assembly, and the outlet of the peristaltic pump assembly is connected to one end of a dripping hose. The other end of the dripping hose is suspended directly above the solid formation chamber. The solid formation chamber includes a central base plate, a low-side column vertically mounted on the central base plate, and a high-side column located outside the low-side column. The high-side column has an integrated sealed bottom and an open top. The outer cavity is formed by the low-side column, the high-side column, and the middle base plate. The inner cavity is formed by the low-side column and the middle base plate. The bottom of the inner cavity has an outlet, and the bottom of the outer cavity has an inlet. The outlet is connected to the liquid-solid separation storage tank through a gel delivery tube. The inlet of the reflux device is connected to the outlet at the bottom of the liquid-solid separation storage tank and the inlet of the outer cavity. The output of the central processing unit is connected to the control input of the peristaltic pump group and the reflux device, respectively.

[0006] It also includes a support frame to realize the vertical arrangement of the mixing storage chamber, the solid formation chamber and the liquid-solid separation storage device.

[0007] It also includes a fixing component to secure the drip tube, ensuring its stability as it drips under the action of the peristaltic pump assembly.

[0008] The fixing component includes a vertical rod and a fixing plate. The fixing plate is provided with multiple through holes of the same diameter as the drip hose, which are evenly spaced for the drip hose to pass through. The fixing plate is vertically fixed to the vertical rod, and the top of the vertical rod is fixed to the support structure.

[0009] It also includes a heating module and a temperature display. The heating module is used to heat the mixing reservoir, and the temperature display is used to display the temperature value in front of the mixing reservoir. The output terminal of the processor is connected to the input terminal of the heating module, and the output terminal of the temperature display is connected to the input terminal of the processor.

[0010] It also includes a flow rate display screen to show the flow rate of the peristaltic pump, with its input connected to the processor's output.

[0011] This invention utilizes a 16-channel peristaltic pump synchronous extrusion system with circuit board-controlled flow rate to meet the personalized needs of different users for gel fertilizer, increasing production speed while expanding the equipment's application range. Furthermore, the peristaltic pump enables the equipment to handle gaseous liquids and high-viscosity fluids, allowing the delivery of various fluid types, including corrosive, abrasive, and high-viscosity fluids, thus broadening production scope. The peristaltic pump's simple structure and reversible operation facilitate hose replacement and pipe cleaning or emptying, resulting in low maintenance costs and reduced future maintenance investment. Additionally, due to the easily solidifying nature of sodium alginate solution, a temperature control integrated module is added to maintain stable mechanical production speed. The reflux device design continuously replenishes the liquid lost from the lower column with the gel beads, ensuring stable production speed and product quality. The wide inner liquid surface column design prevents dripping gel from condensing, improving pelleting and forming rates, thereby enhancing product quality. Attached Figure Description

[0012] To more clearly illustrate the technical solutions in the embodiments of the present invention or the prior art, the drawings used in the description of the embodiments or the prior art will be briefly introduced below. Obviously, the drawings described below are only some embodiments of the present invention. For those skilled in the art, other drawings can be obtained based on these drawings without creative effort.

[0013] Figure 1 This is a schematic diagram of the structure of this utility model;

[0014] Figure 2 This is a schematic diagram of the support structure of this utility model;

[0015] Figure 3This is a right view of the upper half of this utility model;

[0016] Figure 4 This is a rear view of the upper half of this utility model. Detailed Implementation

[0017] The technical solutions of the embodiments of the present invention will be clearly and completely described below with reference to the accompanying drawings. Obviously, the described embodiments are only some embodiments of the present invention, and not all embodiments. Based on the embodiments of the present invention, all other embodiments obtained by those skilled in the art without creative effort are within the scope of protection of the present invention.

[0018] like Figure 1 , 2 As shown in Figure 3, this utility model includes a multi-channel non-destructive gel fertilizer preparation device, comprising a mixing storage chamber 12, a peristaltic pump group 1, a central processing unit, a solid formation chamber, a liquid-solid separation storage tank 9, and a reflux device; the bottom of the mixing storage chamber 12 is connected to the inlet of the peristaltic pump group 1, the outlet of the peristaltic pump group 1 is connected to one end of the dripping hose 4, and the other end of the dripping hose 4 is suspended directly above the solid formation chamber; the solid formation chamber includes a central base plate 5 and a low-side column 13 vertically arranged on the central base plate 5 and a high-side column 14 arranged outside the low-side column; the central base plate 5, the low-side column 13, the high-side column 14, the high-side column 14, the high-side column 14, the high-side column 14, the high-side column 13, the low-side column 14, the high-side column 14, the high-side column 14, the high-side column 13 ... The lower side column 13 and the upper side column 14 are integrally sealed at the bottom and open at the top. The cavity formed by the lower side column 13, the upper side column 14, and the central base plate 5 is the outer cavity, and the cavity formed by the lower side column 13 and the central base plate 5 is the inner cavity. The bottom of the inner cavity has an outlet, and the bottom of the outer cavity has an inlet. The outlet is connected to the liquid-solid separation storage tank 9 via a gel delivery tube 10. The inlet of the reflux device is connected to the outlet at the bottom of the liquid-solid separation storage tank 9, and the inlet of the reflux device is connected to the inlet of the outer cavity. The output of the central processing unit is connected to the peristaltic pump group 1 and the control input of the reflux device, respectively. In actual use, the reflux device includes a reflux pump 7 and a return pipe 6, providing support for the continuous operation of the device.

[0019] It also includes a support frame to facilitate the vertical arrangement of the mixing reservoir, solids forming chamber, and liquid-solid separation reservoir. In actual use, to accommodate the arrangement of the above components, the support frame is also equipped with an upper front plate 2, a middle bottom plate 5, an upper right plate 25, and an upper rear plate 28. The solids forming chamber is located on the middle bottom plate 5. The upper front plate 2, upper right plate 25, and upper rear plate 28, together with the support frame, surround the outer circumference of the mixing reservoir.

[0020] In practical use, to ensure the integrity of the experiment, this application also includes a heating module and a temperature display 21. The heating module is used to heat the mixing reservoir, and the temperature display is used to display the temperature value before the mixing reservoir. The output terminal of the processor is connected to the input terminal of the heating module, and the output terminal of the temperature display is connected to the input terminal of the processor. A flow rate display is also included to display the flow rate of the peristaltic pump, and its input terminal is connected to the output terminal of the processor.

[0021] The upper front plate 2 is also used to fix the peristaltic pump assembly 1 during actual use. The upper right plate 25 is equipped with a flow rate display screen 15 for displaying the flow rate, and also has a switch for controlling the power supply of the peristaltic pump. In actual use, the peristaltic pump assembly is divided into upper and lower layers, and each layer of the peristaltic pump uses a power switch and a flow rate control switch. Specifically, there are upper peristaltic pump switch 16, upper flow rate switch 17, lower flow rate switch 20, and upper peristaltic pump switch 16. This layered peristaltic pump start switch and flow rate control switch design facilitates more comprehensive flow rate control, thereby meeting the user's control over gel production speed and yield, and improving the versatility of the machine. The upper right plate 25 is also equipped with a temperature display 21 and an indicator light 23 to display the temperature of the liquid to be pumped in the mixing and storage chamber, and also has a temperature controller switch to control the liquid temperature in the above-mentioned chamber to prevent liquid condensation from causing blockage and affecting the normal operation of the machine; in actual use, as Figure 4 As shown, the upper rear plate 28 is also provided with heat dissipation holes 27 and a power supply socket 26 for the device, which are used to dissipate the residual heat of the heating module and prevent the internal temperature of the working system from being too high and causing a short circuit.

[0022] It also includes a fixing component for securing the drip hose, ensuring its stability during dripping under the action of the peristaltic pump assembly. The fixing component includes a vertical rod 11 and a fixing plate 3. The fixing plate 3 is a disc with multiple through holes of the same diameter as the drip hose 4, evenly spaced for the drip hose 4 to pass through. The fixing plate 3 is vertically fixed to the vertical rod 11, and the top of the vertical rod is fixed to the support structure.

[0023] In actual operation, the specific process is as follows: the hose 4 (diameter 0.3–3.0 mm, adjustable) of the peristaltic pump group 1 draws sodium alginate solution, which has been added after proportional adjustment, from the mixing storage chamber 12 of the upper top plate under the control of the heating control block 24. Under the control of the upper flow rate control switch 17 and the lower flow rate control switch 20, the liquid is transported through the hose 4 to the middle disc 3 fixed by the vertical rod 11. Under the action of gravity and the pressure generated by the peristaltic pump group 1, the liquid drips into the lower column 13 containing calcium chloride in the middle. After the gel spheres are formed, they flow into the lower liquid-solid separation storage tank 9 along the gel delivery pipe 10 through the round hole at the bottom of the internal cavity. Under the operation of the external return pump 7, the separated calcium chloride solution in the device is drawn into the external cavity of the middle high column 14 along the return pipe 6. When a certain flow rate is reached, the overflow effect, that is, under the action of gravity, the outer high column continuously replenishes the liquid lost with the gel beads in the low column, maintaining the stability of the liquid surface on both sides. After the set working time is completed, the gel is removed from the lower liquid-solid separation storage tank 9 and dried.

[0024] As attached Figure 3 and attached Figure 4 As shown, the temperature and flow rate of the peristaltic pump are regulated by turning on the external power supply through the power socket 26 of the device, opening the upper peristaltic pump switch 16 and the lower peristaltic pump switch 19 to start the peristaltic pump, and observing the fluid rate through the flow rate display screen 15.18. Turning on the temperature controller switch 22 records the liquid temperature through the temperature display screen 21. During normal mechanical operation, the indicator light 23 remains constantly lit, and mechanical cooling is achieved through the heat dissipation holes 26.

[0025] In actual use, the peristaltic pump group employs sixteen peristaltic pumps to form a sixteen-channel synchronous extrusion system. This technology uses high-precision synchronous control, i.e., stepper motor drive (flow range 0.1-1.0 mL / s), to ensure the synchronicity of the sixteen fluid outputs (flow rate error < ±1.5%), avoiding structural defects in the gel network caused by uneven flow rate. The modular nozzle design (diameter adjustable from 0.3 to 3.0 mm) adapts to customized production needs of different gel morphologies (such as microspheres and fibers), improving the dynamic adaptability of the equipment.

[0026] This application employs a hybrid control strategy combining a stepper motor and servo drive to control the peristaltic pump, achieving both low cost and high precision, and realizing dynamic balance of multi-channel fluid. In actual use, specific parameters such as synchronization error < ±1.5% and adjustable nozzle diameter (0.3-3.0 mm) define the boundaries of its technological advantages. Furthermore, this application features efficient material recovery and self-cleaning functions. The former utilizes a return pump 7, i.e., a centrifugal pump (50 W power), to force uncured droplets back to the liquid-solid separation storage tank 9, achieving a raw material utilization rate of ≥95% and significantly reducing production costs. The latter uses a corrosion-resistant material (such as a PTFE coating) for the return pipe 6 to avoid clogging problems caused by gel residue, and uses the return flow to remove deposits from the inner wall of the flow channel, reducing the frequency of downtime maintenance.

[0027] This invention integrates the centrifugal pump and reflux pipeline into a single design, achieving both low power consumption (50 W) and high recovery rate (≥95%), which is superior to traditional gravity reflux or intermittent recovery schemes. In actual use, it features precise temperature control, employing a PID algorithm to regulate the mixing chamber temperature (accuracy ±1℃), preventing the degradation of heat-sensitive materials such as sodium alginate due to temperature fluctuations (e.g., sodium alginate is prone to molecular chain breakage at >60℃).

[0028] In the description of this invention, it should be noted that directional terms such as "center", "lateral", "longitudinal", "length", "width", "thickness", "up", "down", "front", "back", "left", "right", "vertical", "horizontal", "top", "bottom", "inner", "outer", "clockwise", and "counterclockwise" indicate the orientation and positional relationship based on the orientation or positional relationship shown in the accompanying drawings. They are only for the convenience of describing this invention and simplifying the description, and do not indicate or imply that the device or element referred to must have a specific orientation, or be constructed and operated in a specific orientation. They should not be construed as limiting the specific protection scope of this invention.

[0029] It should be noted that the terms "comprising" and "having" and any variations thereof in the specification and claims of this application are intended to cover non-exclusive inclusion. For example, a process, method, system, product, or device that includes a series of steps or units is not necessarily limited to those steps or units that are explicitly listed, but may include other steps or units that are not explicitly listed or that are inherent to such process, method, product, or device.

[0030] Note that the above description is merely a preferred embodiment and application of the technical principles of the present invention. Those skilled in the art will understand that the present invention is not limited to the specific embodiments described herein, and various obvious changes, readjustments, and substitutions can be made without departing from the scope of protection of the present invention. Therefore, although the present invention has been described in detail through the above embodiments, the present invention is not limited to the specific embodiments described herein, and may include many other effective embodiments without departing from the concept of the present invention. The scope of the present invention is determined by the scope of the appended claims.

Claims

1. A multi-channel non-destructive gel fertilizer preparation device, characterized in that: It includes a mixing reservoir, a peristaltic pump assembly, a central processing unit, a solids forming chamber, a liquid-solid separation storage tank, and a reflux device; the bottom of the mixing reservoir is connected to the inlet of the peristaltic pump assembly, the outlet of the peristaltic pump assembly is connected to one end of a dripping hose, and the other end of the dripping hose is suspended directly above the solids forming chamber. The solid formation chamber includes a central base plate, a low-side column vertically mounted on the central base plate, and a high-side column located outside the low-side column. The central base plate, the low-side column, and the high-side column are integrally sealed at the bottom and open at the top. The low-side column, the high-side column, and the central base plate together form the outer cavity, while the low-side column and the central base plate form the inner cavity. The bottom of the inner cavity has an outlet, and the bottom of the outer cavity has an inlet. The outlet is connected to a liquid-solid separation storage tank via a gel delivery tube. The inlet of the reflux device is connected to the outlet at the bottom of the liquid-solid separation storage tank and to the inlet of the outer cavity. The output of the central processing unit is connected to the control input of the peristaltic pump group and the reflux device, respectively.

2. The multi-channel non-destructive gel fertilizer preparation device according to claim 1, characterized in that: It also includes a support frame to realize the vertical arrangement of the mixing storage chamber, the solid formation chamber and the liquid-solid separation storage device.

3. The multi-channel non-destructive gel fertilizer preparation device according to claim 1, characterized in that: It also includes a fixing component to secure the drip tube, ensuring its stability as it drips under the action of the peristaltic pump assembly.

4. The multi-channel non-destructive gel fertilizer preparation device according to claim 3, characterized in that: The fixing component includes a vertical rod and a fixing plate. The fixing plate is provided with multiple through holes of the same diameter as the drip hose, which are evenly spaced for the drip hose to pass through. The fixing plate is vertically fixed to the vertical rod, and the top of the vertical rod is fixed to the support structure.

5. The multi-channel non-destructive gel fertilizer preparation device according to claim 1, characterized in that: It also includes a heating module and a temperature display. The heating module is used to heat the mixing reservoir, and the temperature display is used to display the temperature value in front of the mixing reservoir. The output terminal of the processor is connected to the input terminal of the heating module, and the output terminal of the temperature display is connected to the input terminal of the processor.

6. The multi-channel non-destructive gel fertilizer preparation device according to claim 1, characterized in that: It also includes a flow rate display screen to show the flow rate of the peristaltic pump, with its input connected to the processor's output.