Continuous three-mass resonance mixing method, device and system

Abstract

The invention discloses a continuous three-mass resonance mixing method, a device and a mixing system, which apply resonance mechanical energy to materials, enable the materials to perform mixing motion under the action of the resonance mechanical energy, simultaneously form ellipse-like mixed material flows macroscopically and microcosmically, realize shearing, diffusion and convection actions among the materials and improve the mixing effect of the materials. And the materials are uniformly mixed on the macroscopic and microcosmic mixing levels. According to the invention, uniform mixing can be realized on macroscopic and microscopic mixing levels, the mixing efficiency is high, and the uniformity is good; the continuous three-mass resonance mixing device is low in structure and investment cost, the vibration mechanism is matched with the concave plates and the convex plates which are alternately arranged in the mixing cavity, energy gradient generated in the mechanical vibration process can be provided to form sound waves, then the sound resonance effect is formed, efficient mixing of materials is achieved, and the continuous three-mass resonance mixing device has good popularization prospects.

Description

Technical Field

[0001] This invention relates to a continuous three-mass resonance mixing method, apparatus and mixing system, belonging to the technical field of material mixing equipment. Background Technology

[0002] Material mixing, especially powder mixing, is a core process in building materials, pharmaceuticals, food, and chemical industries. The uniformity of mixing directly affects product consistency (such as the uniformity of API content) and performance (such as the conductivity of battery electrode slurry).

[0003] Traditional material mixing types include convection mixing, shear mixing, and diffusion mixing. Typical mixing equipment includes double cone mixers, V-type mixers, high-speed agitators, ribbon mixers, and drum mixers. Double cone and V-type mixers rely on volumetric convection, achieving macroscopic homogeneity (RSD < 5%), but they struggle to break up van der Waals agglomerations of particles < 50 μm, leading to microscale (μm-level) component segregation. High-speed agitators and ribbon mixers exhibit shear rate gradients, causing fine powders (d50 < 10 μm) to migrate to lower shear zones, forming "dead zones." Drum mixers, during vibration mixing, produce the Brazil nut effect due to inertial differences between components of different densities; when the density difference is > 0.5 g / cm³, the mixing index (MI) decreases by 40%.

[0004] Therefore, most traditional mixing equipment remains at the macro level of mixing and cannot solve the problem of uniformity of micro-mixing. Furthermore, most of the existing acoustic resonators in China are intermittent production types with low capacity, making them difficult to use for industrial production. Foreign acoustic resonators have two types: continuous and intermittent, but their structures are complex.

[0005] To solve the above problems, we have invented a continuous acoustic resonance mixing device. Summary of the Invention

[0006] Therefore, the object of the present invention is to provide a continuous three-mass resonance mixing method, apparatus and mixing system to at least solve the problems mentioned in the background art.

[0007] The objective of this invention is achieved through the following technical solution: A continuous three-mass resonance mixing method applies resonant mechanical energy to the material, causing the material to undergo mixing motion under the action of resonant mechanical energy. This forms a similar elliptical mixed flow at both the macroscopic and microscopic levels, realizing shearing, diffusion, and convection between the materials, and achieving uniform mixing at both the macroscopic and microscopic levels.

[0008] Furthermore, the resonant mechanical energy includes mechanical vibration energy and longitudinal sound wave energy, causing the material to undergo mixed motion under the combined action of mechanical vibration energy and longitudinal sound wave energy.

[0009] Furthermore, the required vibration intensity for mixing is applied to the material at a certain frequency. During the vibration process, an energy gradient is generated to form sound waves. Under the action of acoustic resonance, shearing, diffusion, and convection between materials are achieved, resulting in uniform mixing at both the macroscopic and microscopic levels.

[0010] A continuous three-mass resonance mixing device includes a vibration mechanism and a continuous mixing mechanism disposed on the vibration mechanism. The continuous mixing mechanism includes a mixing body, with a feed inlet at the top and a discharge outlet at the bottom. The mixing body has a mixing chamber, and multiple layers of alternating concave and convex plates are arranged from top to bottom in the mixing chamber. The concave and convex plates have discharge holes that are staggered in position.

[0011] Furthermore, the vibration mechanism includes a frame, on which an excitation mass is provided, and the excitation mass is connected to the mounting platform of the mixing body through an intermediate mass; the intermediate mass includes an intermediate connecting frame and multiple layers of elastic support members arranged on the intermediate connecting frame.

[0012] Furthermore, the excitation mass includes a motor bracket, on which an excitation motor is mounted; the frame includes a lower bracket, on which an adjustable-height upper bracket is mounted, the motor bracket is mounted on the lower bracket, and the motor bracket is connected to the bottom of the intermediate connecting frame via a lower elastic support member, while the intermediate connecting frame is connected to the top of the upper bracket via a middle elastic support member, and the top of the intermediate connecting frame is connected to the mounting platform via a top elastic support member.

[0013] Furthermore, the mixing body is composed of a top mixing unit, a middle mixing unit, and a bottom mixing unit, and the middle mixing unit is provided in at least one layer.

[0014] Furthermore, each mixing unit has at least two alternating layers of concave and convex plates arranged from top to bottom; the top mixing unit has a conical inlet at the top and the bottom mixing unit has a conical outlet at the bottom.

[0015] Furthermore, the material discharge hole on the concave plate is located at the lowest point in the middle of the concave structure, and the material discharge hole on the convex plate is located at the lowest points on both sides of the convex structure, so that the material discharge holes on the concave plate and the material discharge holes on the convex plate are staggered.

[0016] Furthermore, the mixing system is equipped with the aforementioned continuous three-mass resonance mixing device, wherein the mixing system includes a metering system, the discharge end of which is connected to the inlet of the continuous three-mass resonance mixing device, and the discharge outlet of the continuous three-mass resonance mixing device is connected to the finished product warehouse via a transport line, and an online detection device is provided on the transport line.

[0017] Compared with the prior art, the beneficial effects of the present invention are: (1) The present invention applies resonant mechanical energy to the material, so that the material can perform mixing motion under the action of resonant mechanical energy, thereby realizing shearing, diffusion and convection between the materials, and achieving uniform mixing at both the macroscopic and microscopic mixing levels, with high mixing efficiency and good uniformity; (2) The continuous three-mass resonance mixing device provided by the present invention has a low cost and a low structure. Through the vibration mechanism and the alternating arrangement of multiple concave and convex plates in the mixing chamber, it can generate an energy gradient to form sound waves during mechanical vibration, thereby forming a sound resonance effect and realizing efficient mixing of materials. It has good prospects for promotion. (3) The continuous three-mass resonance mixing device provided by the present invention has a multi-layer splicing structure for its mixing body, which can flexibly adjust the number of splicing layers according to the processing volume, and has a large processing volume, good flexibility and adaptability. (4) The continuous three-mass resonance mixing system provided by the present invention can realize continuous material processing and real-time online monitoring, with high processing efficiency and good quality.

[0018] Other advantages, objectives, and features of the invention will be set forth in part in the description which follows, and in part will be apparent to those skilled in the art from the following examination, or may be learned from practice of the invention. The objectives and other advantages of the invention can be realized and obtained through the following description. Attached Figure Description

[0019] To make the objectives, technical solutions, and advantages of this invention clearer, the invention will now be described in further detail with reference to the accompanying drawings, wherein: Figure 1 A schematic diagram of the structural principle of continuous three-mass resonant mixing provided by the present invention; Figure 2 The mixing process for continuous three-mass resonance provided by the present invention; Figure 3 This is a schematic diagram of the structure of a continuous three-mass resonant mixing device according to an embodiment of the present invention; Figure 4 This is a schematic diagram of the vibration mechanism; Figure 5 This is a schematic diagram of the motor bracket structure; Figure 6 This is a schematic diagram of the structure of an intermediate plasmid; Figure 7 This is a schematic diagram of the continuous mixing mechanism; Figure 8 This is a schematic diagram of the top-level hybrid unit. Figure 9 This is a schematic diagram of the structure of the middle-layer hybrid unit; Figure 10This is a schematic diagram of the underlying hybrid unit structure.

[0020] In the picture: 1. Vibration mechanism; 101. Lower support; 102. Upper support; 103. Motor support; 1031. Motor mounting plate; 1032. Connecting plate; 1033. First connecting screw; 104. Excitation motor; 105. Elastic support; 106. Mounting platform; 107. Intermediate connecting frame; 1071. Base plate; 1072. Top plate; 1073. Second connecting screw; 108. Connecting hole; 2. Continuous mixing mechanism; 201. Mixing body; 2011. Top layer mixing unit; 2012. Middle layer mixing unit; 2013. Bottom layer mixing unit; 2014. Connecting part; 202. Feed inlet; 203. Discharge outlet; 204. Concave plate; 205. Convex plate; 206. Discharge hole. Detailed Implementation

[0021] 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.

[0022] like Figures 1-2 As shown, the first embodiment of the present invention provides a continuous three-mass resonance mixing method, which applies resonance mechanical energy to the material, causing the material to undergo mixing motion under the action of resonance mechanical energy, forming a similar elliptical mixed flow at both the macroscopic and microscopic levels, realizing shearing, diffusion and convection between materials, and achieving uniform mixing at both the macroscopic and microscopic mixing levels.

[0023] The resonant mechanical energy includes mechanical vibration energy and longitudinal sound wave energy, which causes the material to undergo mixed motion under the combined action of mechanical vibration energy and longitudinal sound wave energy.

[0024] Specifically, the required vibration intensity for mixing is applied to the material at a certain frequency. During the vibration process, an energy gradient is generated to form sound waves. Under the action of sound resonance, shearing, diffusion, and convection between materials are achieved, resulting in uniform mixing at both the macroscopic and microscopic levels.

[0025] like Figures 3-10The continuous three-mass resonance mixing device based on the above method includes a vibration mechanism 1 and a continuous mixing mechanism 2 disposed on the vibration mechanism 1. The continuous mixing mechanism 2 includes a mixing body 201, with a feed inlet 202 at the top and a discharge outlet 203 at the bottom. A mixing chamber is provided inside the mixing body 201, containing multiple alternating layers of concave plates 204 and convex plates 205 arranged from top to bottom. Discharge holes 206 are provided on the concave plates 204 and convex plates 205, with staggered positions. Material is added to the mixing body 201, and the vibration mechanism 1 provides vibrational mechanical energy to vibrate the mixing body 201. During vibration, the concave plates 204 and convex plates 205 in the mixing chamber generate an energy gradient, forming sound waves, thereby creating an acoustic resonance effect and achieving efficient mixing of the material.

[0026] The vibration mechanism 1 includes a frame, on which an excitation mass is provided. The excitation mass is connected to the mounting platform 106 of the mixing body 201 through an intermediate mass. The intermediate mass includes an intermediate connecting frame 107 and multiple layers of elastic support members 105 arranged on the intermediate connecting frame.

[0027] Specifically, the excitation mass includes a motor support 103, on which an excitation motor 104 is mounted; the frame includes a lower support 101, on which an adjustable upper support 102 is mounted. The motor support 103 is mounted on the lower support 101 and is connected to the bottom of an intermediate connecting frame 107 via a lower elastic support member. The intermediate connecting frame 107 is connected to the top of the upper support 102 via a middle elastic support member, and the top of the intermediate connecting frame 107 is connected to the mounting platform 106 via a top elastic support member. This structure effectively ensures that the mounting platform 106 is in a suspended state, which can both transmit resonant energy and buffer the impact of multiple connecting rods and the foundation.

[0028] The upper support 102 and lower support 101 are structurally similar rectangular frames, each composed of several supporting vertical and horizontal bars. Each supporting vertical bar of the upper and lower supports 102 and 101 has several sets of corresponding connecting holes 108 along its height direction, allowing the upper and lower supports 102 and 101 to be connected together. The installation height of the upper support 102 can be adjusted by adjusting the installation position of the connecting holes. This structure facilitates the installation of the intermediate connecting frame 107 and the elastic support 105, resulting in high operational convenience.

[0029] The motor bracket 103 includes a motor fixing plate 1031 and a connecting plate 1032. The excitation motor 104 is located in the middle of the motor fixing plate 1031. First connecting screws 1033 are provided at the four corners of the motor fixing plate 1031. The connecting plate 1032 is connected to the motor fixing plate 1031 via the first connecting screws 1033. The intermediate connecting frame 107 includes a bottom plate 1071 and a top plate 1072, which are connected to each other via second connecting screws 1073. The connecting plate 1032 of the motor bracket is connected to the bottom plate 1071 of the intermediate mass via a lower elastic support member. The top plate 1072 of the intermediate mass is connected to the top of the upper bracket 102 via a middle elastic support member. The mounting platform 106 is connected to the top plate 1072 of the intermediate mass via a top elastic support member.

[0030] The mixing unit 201 is composed of a top mixing unit 2011, a middle mixing unit 2012, and a bottom mixing unit 2013. The middle mixing unit 2012 is provided at least once. Furthermore, the number of middle mixing units 2012 can be appropriately increased or decreased according to the processing capacity, offering good flexibility and adaptability. Each mixing unit contains at least two alternating layers of concave plates 204 and convex plates 205 arranged from top to bottom. The top mixing unit 2011 has a conical inlet at its top, and the bottom mixing unit 2013 has a conical outlet at its bottom.

[0031] The discharge holes on the concave plate 204 are located at the lowest point in the middle of the concave structure, and the discharge holes on the convex plate 205 are located at the lowest points on both sides of the convex structure. This not only makes the discharge holes on the concave plate 204 and the discharge holes on the convex plate 205 staggered, allowing the material to be fully mixed on the concave plate 204 and the convex plate 205, but also ensures smooth discharge.

[0032] On the outer sides of the top layer mixing unit 2011, the middle layer mixing unit 2012 and the bottom layer mixing unit 2013, there are connecting parts 2014 with opposite positions. The connecting parts 2014 are provided with bolt holes so that adjacent mixing units are connected together by connecting bolts that are installed in the connecting parts 2014.

[0033] Furthermore, the concave plate 204 and convex plate 205 can be configured as elastic structures to better transmit resonant energy and improve the material mixing effect. The concave plate 204 and convex plate 205 can be made of elastic material. Alternatively, the concave plate 204 and convex plate 205 can be connected to the inner wall of the mixing chamber through an elastic connection structure.

[0034] A continuous three-mass resonance mixing system is provided, wherein the mixing system is equipped with the aforementioned continuous three-mass resonance mixing device, wherein the mixing system includes a metering system, the discharge end of the metering system is connected to the inlet 202 of the continuous three-mass resonance mixing device, the discharge outlet 203 of the continuous three-mass resonance mixing device is connected to the finished product warehouse through a transport line, and an online detection device is provided on the transport line.

[0035] The metering system can be a metering belt scale, a quantitative conveyor, or any other equipment that can realize material conveying and metering.

[0036] The online detection device can be a near-infrared spectrometer, a laser diffraction particle size analyzer, an acoustic / ultrasonic sensor, or any other device that can monitor parameters such as material uniformity, component ratio, and particle size in real time during the mixing process to ensure mixing quality.

[0037] The above description is merely a preferred embodiment of the present invention and is not intended to limit the scope of the present invention in any way. Any simple modifications, equivalent changes, and alterations made to the above embodiments without departing from the technical solution of the present invention and based on the technical essence of the present invention shall still fall within the scope of the technical solution of the present invention.

Claims

1. A continuous three-mass resonance mixing method, characterized in that, Resonant mechanical energy is applied to the material, causing it to undergo mixing motion under the action of resonant mechanical energy. This creates a similar elliptical mixed flow at both the macroscopic and microscopic levels, achieving shearing, diffusion, and convection between the materials and resulting in uniform mixing at both the macroscopic and microscopic levels.

2. The continuous three-mass resonance mixing method according to claim 1, characterized in that, The resonant mechanical energy includes mechanical vibration energy and longitudinal sound wave energy, which causes the material to undergo mixed motion under the combined action of mechanical vibration energy and longitudinal sound wave energy.

3. The continuous three-mass resonance mixing method according to claim 2, characterized in that, The required vibration intensity for mixing is applied to the material at a certain frequency. During the vibration process, an energy gradient is generated to form sound waves. Under the action of sound resonance, shearing, diffusion and convection between materials are realized, and the materials are mixed evenly at both the macroscopic and microscopic mixing levels.

4. A continuous three-mass resonant mixing device, characterized in that, It includes a vibration mechanism (1) and a continuous mixing mechanism (2) disposed on the vibration mechanism (1). The continuous mixing mechanism (2) includes a mixing body (201). The mixing body (201) has a feed inlet (202) at the top and a discharge outlet (203) at the bottom. The mixing body (201) has a mixing chamber. The mixing chamber has multiple layers of alternating concave plates (204) and convex plates (205) arranged from top to bottom. The concave plates (204) and convex plates (205) have material dropping holes (206) that are staggered in position.

5. The continuous three-mass resonance mixing device according to claim 4, characterized in that, The vibration mechanism (1) includes a frame, on which an excitation mass is provided. The excitation mass is connected to the mounting platform (106) of the mixing body (201) through an intermediate mass. The intermediate mass includes an intermediate connecting frame (107) and multiple layers of elastic support members (105) arranged on the intermediate connecting frame (107).

6. The continuous three-mass resonance mixing device according to claim 5, characterized in that, The excitation mass includes a motor bracket (103), on which an excitation motor (104) is provided; the frame includes a lower bracket (101), on which an upper bracket (102) with adjustable height is provided; the motor bracket (103) is set on the lower bracket (101), and the motor bracket (103) is connected to the bottom of the intermediate connecting frame (107) through the lower elastic support member, and the intermediate connecting frame (107) is connected to the top of the upper bracket (102) through the middle elastic support member, and the top of the intermediate connecting frame (107) is connected to the mounting platform (106) through the top elastic support member.

7. The continuous three-mass resonance mixing device according to claim 4, characterized in that, The mixing body (201) is composed of a top mixing unit (2011), a middle mixing unit (2012) and a bottom mixing unit (2013), and the middle mixing unit (2012) is provided as at least one layer.

8. The continuous three-mass resonance mixing device according to claim 7, characterized in that, In each mixing unit, at least two alternating concave plates (204) and convex plates (205) are provided from top to bottom; the top mixing unit (2011) is provided with a conical feed inlet at the top and the bottom mixing unit (2013) is provided with a conical discharge outlet at the bottom.

9. The continuous three-mass resonance mixing device according to any one of claims 4-8, characterized in that, The material discharge hole on the concave plate (204) is located at the lowest point in the middle of the concave structure, and the material discharge hole on the convex plate (205) is located at the lowest point on both sides of the convex structure, so that the material discharge hole on the concave plate (204) and the material discharge hole on the convex plate (205) are staggered.

10. A continuous three-mass resonant hybrid system, characterized in that, The mixing system is equipped with a continuous three-mass resonance mixing device as described in any one of claims 4 to 9, wherein the mixing system includes a metering system, the discharge end of the metering system is connected to the inlet (202) of the continuous three-mass resonance mixing device, the discharge port (203) of the continuous three-mass resonance mixing device is connected to the finished product warehouse through a transport line, and an online detection device is provided on the transport line.

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