Supergravity continuous shear mixing device and method for mixing high-viscosity powder and liquid

Abstract

The invention discloses a supergravity continuous shear mixing device and method for mixing high-viscosity powder and liquid. The device comprises a device body, and a feeding area, a high shear area and a material collecting cavity which are communicated with one another are sequentially arranged in the device body from bottom to top; the high-shear area comprises a multi-spiral protruding prismatic table rotor and a high-shear taper pipe stator which are coaxially arranged along the central axis of the device body, the multi-spiral protruding prismatic table rotor comprises a spiral flow guide circular truncated cone rotor body, a liquid center distribution flow channel is formed in the center of the multi-spiral protruding prismatic table rotor, and a plurality of protruding prismatic tables distributed in a surrounding mode along the spiral track are evenly arranged on the outer side wall in the circumferential direction. A continuous spiral groove is formed between every two adjacent protruding prismatic tables, and a plurality of radial micropores communicated with the liquid center distribution flow channel are evenly formed in the area, close to the protruding prismatic tables below the spiral groove, of each spiral groove. According to the method, the problems of non-uniform micromixing, low efficiency and safety risk caused by dependence on macroscopic convection and random shearing in the traditional mixing technology can be fundamentally solved.

Description

A continuous shear mixing device and method for mixing high-viscosity powder and liquid under ultragravity conditions Technical Field

[0001] This invention belongs to the field of mixing equipment technology, specifically relating to a continuous shear mixing device and method for mixing high-viscosity powder and liquid. Background Technology

[0002] Currently, industrial transformation in fields such as new energy, artificial intelligence, and high-end equipment heavily relies on breakthroughs in new materials technology. High-performance electronic materials, high-energy materials, and high-reliability structural ceramics have become strategic core materials. The final performance of these materials depends not only on laboratory research and development but, more importantly, on the large-scale preparation process from "molecular design" to "macroscopic products." The crucial link in this process is the synthesis of a microscopically uniform and stable high-viscosity slurry from a solid functional phase (such as active powders, ceramic powders, and energetic crystals) and a liquid medium phase. After being formed through precision processes such as coating and casting, the uniformity, density, and defect-free nature of this slurry directly determine the core performance of the end products (such as the energy density of power batteries, the reliability of military equipment, and the yield of semiconductor devices). Therefore, advanced slurry preparation technology is key to bridging the gap between "material innovation" and "product leadership."

[0003] However, the efficient preparation of high-viscosity slurries has long faced three common technical bottlenecks: First, powders are prone to forming agglomerates that are difficult to deagglomerate when they first come into contact with the liquid phase ("initial agglomeration" effect); second, as the solid content increases, the viscosity of the system increases sharply, forming a "viscosity barrier" that hinders mass transfer and dispersion; and third, existing processes mostly rely on "serial batch" operations, making it difficult to achieve continuous and automated production.

[0004] Currently, mainstream technologies mainly include two categories: mechanical stirring and static mixing. Mechanical stirring often relies on the rotation of stirring blades to generate macroscopic convection, and its basic principle is to promote mixing through mechanical external force. Patent CN223233631U discloses an extrusion-type solid-liquid mixture mixer, which, while promoting macroscopic material flow to some extent, still generates shear forces that are essentially macroscopic and random, with limited ability to break up initial powder agglomerates at the micro-nano scale. Furthermore, this method easily generates a large number of mixing dead zones in high-viscosity environments, resulting in high energy consumption, low efficiency, and difficulty in avoiding the introduction of excessive gas due to vigorous stirring. Another technical approach relies on static mixing elements within a pipe, achieving continuous mixing through the segmentation, rotation, and merging of fluids. Patent CN223393257U discloses a spiral ribbon static mixer, which can fully mix and exchange heat in high-viscosity fluids without generating a large number of dead zones, and also provides a good homogenization effect on the fluid temperature field through its internal static mixing structure. The mixing effect of this type of solution is highly dependent on the system flow rate and it does not have the ability to actively apply shear. Therefore, it has a weak effect on breaking the initial agglomeration of materials and has a high risk of clogging when dealing with materials with rapidly increasing viscosity or excessively high solid content, thus limiting its applicability.

[0005] Furthermore, to achieve automated production, existing technologies have developed automatic quantitative mixing systems composed of programmable logic controllers (PLCs), sensors, and actuators (such as solenoid valves and motors). These systems achieve precise program control over the proportion of solid and liquid materials and the process. However, their core technology focuses on the accuracy of material feeding, rather than the efficiency and uniformity of the mixing itself. The mixing units used in these systems still cannot solve the fundamental problem of uneven micro-dispersion when dealing with high-viscosity materials. In specific fields, there are also specialized processes such as explosive compaction and sol-gel methods. For example, dual-tube explosive compaction devices utilize shock waves to achieve powder densification; materials such as lithium lead titanates are synthesized through the sol-gel method. While these solutions can achieve results in their specific application scenarios, they typically involve complex processes, highly specialized equipment, and high energy and control costs, making them difficult to widely adopt and apply as a general high-viscosity mixing technology.

[0006] In summary, existing technologies suffer from a core contradiction: they cannot simultaneously and perfectly solve the two critical issues of "instantaneous uniformity of initial contact between powder and liquid" and "effectiveness of ultimate shear required for high-viscosity materials" within a continuous production cycle. Mechanical stirring and static mixing cannot provide sufficient and precise shear force; quantitative control schemes solve the problem of feeding accuracy but do not address the essence of mixing; and specialized processes are difficult to popularize due to cost and applicability. Whether it is mechanical stirring with enhanced circulation, static mixing relying on flow rate, or precision feeding systems that only achieve program automation, they are all merely improvements within the existing technological framework and fail to fundamentally solve the synergistic problem of "initial powder distribution" and "instantaneous ultimate shear". Summary of the Invention

[0007] The purpose of this invention is to provide a continuous shear mixing device and method under high gravity for mixing high-viscosity powder and liquid. At the level of fluid dynamics, it can simultaneously achieve instantaneous uniform dispersion of powder upon initial contact and efficient and precise shearing required for high-viscosity systems. This fundamentally solves the problems of uneven micro-mixing, low efficiency and safety risks caused by traditional mixing technology, which relies on macroscopic convection and random shearing.

[0008] To achieve the above objectives, the present invention provides the following technical solution: a high-gravity continuous shear mixing device for mixing high-viscosity powder and liquid, comprising a device body, wherein a feeding zone, a high-shear zone, and a material collection chamber are sequentially arranged from bottom to top within the device body; the feeding zone includes a powder metering feeding mechanism and a liquid precision metering and supply system disposed at the top of the device body, wherein the liquid precision metering and supply system is located at the center of the top of the device body and supplies liquid to the device interior through a central pipe; the powder metering feeding mechanism is arranged in a ring around the liquid precision metering and supply system; the high-shear zone includes a multi-spiral convex truncated cone rotor and a high-shear conical stator coaxially arranged along the central axis of the device body, wherein an annular shear gap, larger at the top and smaller at the bottom, is formed between the inner walls of the multi-spiral convex truncated cone rotor and the high-shear conical stator; the multi-spiral convex truncated cone rotor... The device is an integrated structure, comprising a central drive shaft and a spiral guide frustum rotor body integrally formed on the upper part of the central drive shaft. The central drive shaft is connected to a drive unit located at the bottom of the device body. The spiral guide frustum rotor body has a central liquid distribution channel at its center. The upper inlet of the central liquid distribution channel is connected to a liquid precision metering and feeding system, and the lower end of the central liquid distribution channel is closed, thereby forming a liquid raw material buffer chamber at the bottom of the channel. Multiple raised frustums are evenly distributed around the outer side wall of the spiral guide frustum rotor body along the spiral trajectory. A continuous spiral groove is formed between adjacent raised frustums to provide a controlled downward channel for the powder when the rotor rotates. Several radial micropores communicating with the central liquid distribution channel are evenly distributed in the area near the raised frustum below each spiral groove.

[0009] Furthermore, the axis of the radial micropore extends radially outward and downward from the central region to form an inclination angle.

[0010] Furthermore, the material collection chamber is located below the high-shear conical tube stator, and an annular gap serving as a discharge port and an exhaust port is provided between the high-shear conical tube stator and the material collection chamber.

[0011] Furthermore, a lower pulverizing column is provided between the liquid precision metering and dispensing system and the multi-spiral convex truncated rotor. The lower pulverizing column adopts a hollow conical tubular structure, and the hollow part of the lower pulverizing column has the same diameter as the liquid center distribution channel.

[0012] Furthermore, it also includes a surrounding sealing cover disposed outside the device body, which cooperates with the outer surface of the device body to form a closed sealing cavity.

[0013] This invention also provides a continuous shear mixing method under high gravity for mixing high-viscosity powder and liquid, comprising the following steps: Step 1, System preparation and parameter setting: Start the drive unit and set the target operating speed of the multi-spiral convex truncated cone rotor through the drive unit; simultaneously start the powder quantitative feeding mechanism and the liquid precision metering system, and set and precisely control the feeding rate and ratio of powder and liquid according to the process formula; Step 2, Powder distribution and liquid penetration: Under the synergistic effect of gravity and the rotation of the multi-spiral convex truncated cone rotor, the powder is dynamically and evenly distributed into the spiral groove to form a continuous and uniform powder thin layer; at the same time, the liquid is transported to the liquid raw material buffer chamber through the liquid central distribution channel, and is sprayed through radial microholes under the action of centrifugal force. Or it penetrates into the thin layer of moving powder to complete the initial premixing and wetting, inhibiting the formation of macroscopic agglomerates from the source; Step 3, instantaneous high shear and forced homogenization: the premixed material rotates with the multi-spiral convex frustum rotor. When the premixed material passes through the shear gap formed by the rotor and stator, it is subjected to extremely strong shearing, extrusion and turbulence. The high shear rate generated is used to break up the micro-nano-scale agglomerates in the material, realizing instantaneous homogenization of the material; Step 4, stabilization and continuous output of the mixed slurry: the uniform slurry after high shear treatment, under the combined action of centrifugal force and rotor rotation, finally enters the material collection chamber from the discharge port along the spiral groove, and discharges the entrained or generated gas to maintain the stable gas pressure in the chamber.

[0014] Compared with existing technologies, the present invention has the following advantages: The present invention uses a core shearing unit composed of a "multi-spiral convex frustum rotor" and a "conical stator" as a forced homogenization medium for high-viscosity materials. By instantaneously pre-distributing and pre-mixing the powder and liquid before they enter the high-shear zone, the ultimate shear force field generated by the narrow gap between the rotor and the stator is used to achieve the dispersion of powder agglomerates. Specifically, the powder enters the high-shear zone through the feeding mechanism. Under the synergistic effect of gravity and the rotation of the multi-spiral convex frustum rotor, the powder is dynamically and evenly distributed into the spiral grooves, forming a continuous and uniform powder layer. The liquid is transported to the liquid raw material buffer chamber through the liquid central distribution channel. Under the action of centrifugal force, it is sprayed or penetrated into the moving powder layer through radial micropores to achieve preliminary wetting. Subsequently, when the premixed material passes through the micron-level gap between the rotor and the stator, it is subjected to instantaneous and high-intensity shearing action, forcibly breaking up the micro-agglomerates. Ultimately, the continuous output of high-quality slurry with microscopic uniformity solves a series of problems such as initial clumping, mixing dead zones, batch differences, and low efficiency.

[0015] The reason why traditional mixing methods result in powder agglomeration and low mixing degree is that the powder and liquid fail to achieve uniform distribution and instantaneous penetration upon contact. This invention, by setting up a multi-spiral convex frustum rotor, pre-distributes the material evenly into a thin layer in the circumferential direction before it enters the high-shear zone. Simultaneously, the liquid is precisely and three-dimensionally sprayed into the powder layer through the flow channel at the center of the rotor and radial micropores, achieving pre-mixing. This "distribution before penetration" operation effectively inhibits the formation of initial agglomerates at the source.

[0016] This invention utilizes a narrow and adjustable annular shear gap, wider at the top and narrower at the bottom, formed between a rotating frustum rotor and a fixed outer conical stator. Whenever premixed material flows through this gap, it is subjected to instantaneous, high-intensity shear force. This shearing is thermodynamically and hydrodynamically superior to the macroscopic eddies generated by traditional stirring. It not only forcibly breaks up any potentially present micro-agglomerates, effectively overcoming the cohesive forces of high-viscosity materials, but also ensures uniformity across the entire microscale, even at extremely high solid content. Furthermore, centrifugal force drives the solution inside the rotor to be thrown outwards, thoroughly mixing with the external powder, thereby significantly enhancing the contact area between the liquid and solid phases and the penetration effect of the liquid medium. Simultaneously, as the mixed slurry moves downwards through the annular gap, the shearing distance gradually decreases. During this process, the slurry is continuously sheared, dispersed, and compressed, resulting in a multi-layered mixing pattern within the high-shear zone: powder layer-by-layer thinning and agglomeration breaking, forced liquid-solid mixing, further shearing and thinning, dispersion of the mixed layer with the underlying powder layer, and spray mixing of a new powder layer or remixing with the surrounding slurry.

[0017] This invention integrates multiple processes such as material distribution, penetration, shear homogenization, and degassing into a compact unit and completes them continuously in one go. This fundamentally overcomes the timing conflicts of traditional batch processes, transforming "serial" operations into "parallel" processing, significantly improving production efficiency and consistency, and completely eliminating quality fluctuations and energy losses caused by process transitions. The mixture generated by this invention is a homogeneous slurry, without producing easily precipitated dry powder or large, unremovable bubbles, fundamentally improving process safety (especially for energetic materials). Simultaneously, its continuous and efficient mixing method is itself an energy-saving measure. Furthermore, by adjusting process parameters (such as rotation speed, gap, and feed rate), the device can flexibly adapt to the production needs of different formulations, from electronic slurries to ceramic slurries, achieving multi-purpose functionality. It not only completely solves the quality and efficiency problems caused by uneven distribution and insufficient shearing in high-viscosity solid-liquid mixing, but also achieves continuous, safe, and energy-efficient production processes through process integration, providing a universal technical equipment platform for material preparation in multiple high-end manufacturing fields. Attached Figure Description

[0018] Figure 1 is a cross-sectional view of the present invention; Figure 2 is a schematic diagram of the multi-spiral raised frustum rotor structure of the present invention; In the figures: 1-Powder quantitative feeding mechanism; 2-Liquid precision metering and dispensing system; 3-Drive unit; 4-Multi-spiral raised frustum rotor; 41-Rotor body; 42-Central drive shaft; 43-Raised frustum; 44-Spiral groove; 45-Radial micropore; 46-Liquid central distribution channel; 5-High shear cone stator; 6-Liquid raw material buffer chamber; 7-Material collection chamber; 8-Lower crushing column. Detailed Implementation

[0019] To make the above-mentioned objects, features and advantages of the present invention more apparent and understandable, the present invention will be described in detail below with reference to the accompanying drawings and specific embodiments.

[0020] As shown in Figures 1 and 2, the high-gravity continuous shear mixing device for mixing high-viscosity powder and liquid according to this embodiment includes a device body. From bottom to top, a feeding zone, a high-shear zone, and a material collection chamber 7 are sequentially arranged and interconnected. The feeding zone includes a powder metering feeding mechanism 1 and a liquid precision metering and supply system 2 located at the top of the device body, forming a center-periphery feeding layout. The liquid precision metering and supply system 2 is located at the center of the top of the device body and supplies liquid to the device interior through a central pipe. The powder metering feeding mechanism 1 is arranged in a ring around the liquid precision metering and supply system 2 to quantitatively supply powder from the top peripheral area.

[0021] The high-shear zone includes a multi-spiral convex frustum rotor 4 and a high-shear conical stator 5, coaxially arranged along the central axis of the device body. An annular shear gap, wider at the top and narrower at the bottom, is formed between the inner walls of the multi-spiral convex frustum rotor 4 and the high-shear conical stator 5, allowing for an adjustable gap ranging from 0.1 to 5.0 mm. The multi-spiral convex frustum rotor 4 is an integral structure, including a central drive shaft 42 and a spiral guide frustum rotor body 41 integrally formed on the upper part of the central drive shaft 42. The central drive shaft 42 is connected to a drive unit 3 located at the bottom of the device body. The drive unit 3 uses a variable frequency motor with an adjustable speed range. A constant semi-cone angle α is formed between the inner wall of the spiral guide frustum rotor body 41 and the axis, thus forming a variable cross-section structure with an inner diameter that continuously and linearly increases from top to bottom. The spiral guide frustum rotor body 41 has a central liquid distribution channel 46 at its center. The upper inlet of the central liquid distribution channel 46 is connected to the liquid precision metering and supply system 2 via a high-pressure pipeline. The lower end of the central liquid distribution channel 46 is closed, thus forming a liquid raw material buffer chamber 6 at the bottom of the channel. Multiple raised frustums 43 are evenly distributed circumferentially along a spiral trajectory on the outer wall of the spiral guide frustum rotor body 41. A continuous spiral groove 44 is formed between adjacent raised frustums 43. The spiral grooves 44 provide a controlled downward channel for the powder when the rotor rotates, achieving directional conveying and uniform dispersion of the material. Several radial micro-holes 45, communicating with the central liquid distribution channel 46, are evenly distributed in the area near the raised frustum 43 below each spiral groove 44. To meet the fluid discharge requirements, the axis of the radial micro-holes 45 extends radially outward and downward from the central area, forming an angle. The size of the angle is determined according to the flow guidance requirements. The material collection chamber 7 is located below the high-shear conical stator 5. The high-shear tapered stator 5 adopts a modular design, and its stator sleeve can be quickly disassembled and assembled. By replacing stator sleeves of different specifications, the shear gap between the rotor and stator can be flexibly adjusted to adapt to the dispersion or emulsification requirements of different material systems. An annular gap is provided between the high-shear tapered stator 5 and the material collection chamber 7. This gap serves as a discharge port, acting as the outlet section for the enhanced mixing process in the liquid-solid reaction system. In addition, it can also be used for degassing during the liquid-solid reaction process to promptly remove entrained or generated gases.

[0022] A lower pulverizing column 8 is also provided between the liquid precision metering and dispensing system 2 and the multi-spiral convex truncated rotor 4. The lower pulverizing column 8 adopts a hollow conical tubular structure, and the hollow part of the lower pulverizing column 8 has the same diameter as the liquid central distribution channel 46. The lower pulverizing column 8 spatially isolates the liquid from the falling powder, avoiding unexpected contact between the liquid and the main mixing zone. At the same time, it guides the powder along its outer wall into the annular shear gap, and transmits it downward along the spiral groove 44 to form a thin layer of powder. The liquid is pumped into the liquid central distribution channel 46 through the liquid precision metering system 2 and enters the liquid raw material buffer chamber 6. The multi-spiral convex truncated rotor 4 is driven to rotate by the drive unit 3. The centrifugal force generated during operation causes the liquid to be sprayed out at high speed through the radial micro-holes 45 into the thin layer of powder, achieving initial wetting. Subsequently, when the premixed material passes through the gap between the rotor and the stator, it is subjected to instantaneous, high-intensity shearing action, forcibly breaking up the micro-agglomerates. The material after high shear treatment is continuously introduced into the material collection chamber 7 through the discharge port.

[0023] During operation, the liquid forms a stable liquid seal barrier at the micropore outlet, effectively preventing powder from flowing back into the rotor due to hydrodynamic forces. Furthermore, the controlled pressure pulsations generated during system operation, combined with a standardized no-load shutdown procedure, enable effective self-cleaning and purging functions.

[0024] The mixing device also includes a surrounding sealing cover disposed outside the device body. The sealing cover and the outer surface of the device body cooperate to form a closed sealing cavity, which is used to block the exchange of internal and external media during the preparation process with high sealing requirements, and ensure that the process operates stably in an airtight environment.

[0025] A continuous shear mixing method using gravity for mixing high-viscosity powder and liquid includes the following steps: Step 1, System preparation and parameter setting: Start the drive unit 3 and set the target operating speed of the multi-spiral convex truncated cone rotor 4 through the drive unit 3; Simultaneously start the powder quantitative feeding mechanism 1 and the liquid precision metering system 2, and set and precisely control the feeding rate and ratio of powder and liquid according to the process formula; Step 2, Powder distribution and liquid penetration: Under the synergistic effect of gravity and the rotation of the multi-spiral convex truncated cone rotor 4, the powder is dynamically and evenly distributed into the spiral groove 44 to form a continuous and uniform powder layer; At the same time, the liquid is transported to the liquid raw material buffer chamber 6 through the liquid central distribution channel 46, and under the action of centrifugal force, it is sprayed or penetrated into the moving powder layer through the radial micropores 45, completing the initial... Step 1: Premixing and impregnation inhibits the formation of macroscopic agglomerates from the source; Step 2: Instantaneous high shear and forced homogenization: The premixed material rotates with the multi-spiral convex frustum rotor 4. When the premixed material passes through the shear gap formed by the rotor and stator, it is subjected to extremely strong shearing, extrusion and turbulence. Its shear rate can effectively break up agglomerates at the micro-nano scale and achieve instantaneous homogenization of the material; Step 3: Stability and continuous output of the mixed slurry: The uniform slurry after high shear treatment, under the combined action of centrifugal force and rotor rotation, enters the material collection chamber 7 from the outlet along the spiral groove 44, and discharges the entrained or generated gas to maintain stable gas pressure in the chamber and avoid gas interference with the mixing microenvironment, thereby ensuring the final solidification of the micro-mixing effect and smooth output of the material.

[0026] The mixing intensity can be directly and synchronously changed by adjusting the rotation speed of drive unit 3, thereby achieving stable control of the outlet material state. This enables the entire device to naturally connect with and support a stable and continuous industrial production process.

Claims

1. A continuous shear mixing device under high gravity for mixing high-viscosity powder and liquid, characterized in that, The device includes a main body, which contains a feeding zone, a high-shear zone, and a material collection chamber (7) arranged sequentially from bottom to top. The feeding zone includes a powder metering feeding mechanism (1) and a liquid precision metering and supply system (2) located at the top center of the main body. The liquid precision metering and supply system (2) supplies liquid to the device through a central pipe. The powder metering feeding mechanism (1) is arranged in a ring around the liquid precision metering and supply system (2). The high-shear zone includes a multi-spiral convex truncated cone rotor (4) and a high-shear conical stator (5) arranged coaxially along the central axis of the main body. The inner walls of the multi-spiral convex truncated cone rotor (4) and the high-shear conical stator (5) form an annular shear gap with a larger upper surface and a smaller lower surface. The multi-spiral convex truncated cone rotor (4) is an integral structure, including a central drive shaft (42) and a spiral guide integrally formed on the upper part of the central drive shaft (42). The spiral flow frustum rotor body (41) has a central drive shaft (42) connected to a drive unit (3) located at the bottom of the device body. The center of the spiral flow frustum rotor body (41) is provided with a liquid center distribution channel (46). The upper inlet of the liquid center distribution channel (46) is connected to the liquid precision metering and supply system (2). The lower end of the liquid center distribution channel (46) is closed, thereby forming a liquid raw material buffer chamber (6) at the bottom of the channel. Multiple raised frustums (43) are uniformly arranged along the circumference on the outer wall of the spiral flow frustum rotor body (41) and distributed around the spiral trajectory. A continuous spiral groove (44) is formed between adjacent raised frustums (43) to provide a controlled downward channel for the powder when the rotor rotates. Several radial microholes (45) connected to the liquid center distribution channel (46) are evenly distributed in the area of ​​each spiral groove (44) near the raised frustum (43) below it.

2. The continuous shear mixing device under high gravity for mixing high-viscosity powder and liquid according to claim 1, characterized in that, The axis of the radial micropore (45) extends radially outward and downward from the central region to form an inclination angle.

3. The continuous shear mixing device under high gravity for mixing high-viscosity powder and liquid according to claim 1, characterized in that, The material collection chamber (7) is located below the high-shear cone stator (5), and an annular gap is provided between the high-shear cone stator (5) and the material collection chamber (7) as a discharge port and an exhaust port.

4. A high-gravity continuous shear mixing device for mixing high-viscosity powder and liquid according to claims 1-3, characterized in that a lower crushing column (8) is provided between the liquid precision metering and supply system (2) and the multi-spiral convex truncated rotor (4), the lower crushing column (8) adopts a hollow conical tubular structure, and the hollow part of the lower crushing column (8) is consistent with the diameter of the liquid center distribution channel (46).

5. The supergravity continuous shear mixing device for mixing high-viscosity powder and liquid according to claim 4, characterized in that it further includes a surrounding sealing cover disposed outside the device body, the sealing cover and the outer surface of the device body forming a closed sealing cavity.

6. The apparatus according to claim 5 implements a continuous shear mixing method under high gravity for mixing high-viscosity powder and liquid, characterized in that, Includes the following steps: Step 1, System Preparation and Parameter Setting: Start the drive unit (3) and set the target operating speed of the multi-spiral convex truncated cone rotor (4) through the drive unit (3); simultaneously start the powder quantitative feeding mechanism (1) and the liquid precision metering system (2), and set and precisely control the feeding rate and ratio of powder and liquid according to the process formula; Step 2, Powder Distribution and Liquid Penetration: Under the combined action of gravity and the rotation of the multi-spiral convex truncated cone rotor (4), the powder is dynamically and evenly distributed to the spiral groove (44) to form a continuous and uniform powder thin layer; at the same time, the liquid is transported to the liquid raw material buffer chamber (6) through the liquid center distribution channel (46), and is sprayed or penetrated into the moving powder through the radial micropores (45) under the action of centrifugal force. In the thin layer, the initial premixing and impregnation are completed, and the formation of macroscopic agglomerates is suppressed from the source; Step 3, instantaneous high shear and forced homogenization: the premixed material rotates with the multi-spiral convex frustum rotor (4). When the premixed material passes through the shear gap formed by the rotor and the stator, it is subjected to extremely strong shearing, extrusion and turbulence. The high shear rate generated is used to break up the micro-nano-scale agglomerates in the material and realize the instantaneous homogenization of the material; Step 4, stabilization and continuous output of the mixed slurry: the uniform slurry after high shear treatment, under the combined action of centrifugal force and rotor rotation, enters the material collection cavity (7) from the discharge port along the spiral groove (44) and discharges the entrained or generated gas to maintain the stable gas pressure in the cavity.

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