Stirring Micro-Mixer and Mixing System

Abstract

The present invention relates to a stirring micro-mixer and a mixing system. The stirring micro-mixer comprises: an inlet part, the inlet part has a premixing chamber, a first mixing chamber and a plurality of feed chambers, the plurality of feed chambers are respectively connected to the premixing chamber, and the premixing chamber is also connected to the first mixing chamber; an outlet part, which is detachably and sealedly arranged on the top of the inlet part, the outlet part has an outlet channel, and the outlet channel is connected to the first mixing chamber; and a rotating component, which is rotatably arranged in the first mixing chamber; after the raw materials enter the premixing chamber through the plurality of feed chambers, they are premixed in the premixing chamber and transported to the first mixing chamber, the rotating component mixes the raw materials in the first mixing chamber, and sends the mixed product out through the outlet channel. The stirring micro-mixer has a simple structure, is easy to assemble, is easy to disassemble, and is convenient for maintenance and cleaning.

Description

Technical Field

[0001] The invention relates to the technical field of chemical equipment, in particular to a stirring micro mixer and a mixing system. Background Art

[0002] Mixing is an important unit operation step in the chemical industry. For many fast reactions in industry, only efficient mixing can ensure sufficient reaction conversion rate and selectivity and reduce separation energy consumption. However, the traditional stirred tank reactor in industry cannot achieve effective fast mixing due to its uneven internal stirring.

[0003] In comparison, micromixers can effectively reduce the diffusion distance, increase the mass transfer specific surface area, and enhance the mixing process by using their channels with characteristic dimensions ranging from micrometers to millimeters. Micromixers can be divided into active and passive micromixers according to whether there is external field energy input. Passive micromixers do not introduce external field energy, and strengthen chaotic convection through complex channel structures such as bends, obstacles, separations and combinations, thereby enhancing mixing. Active mixers achieve mixing process enhancement by introducing external force fields such as electric fields, magnetic fields, and ultrasonic fields.

[0004] Although micromixers have achieved rapid development in recent years, current micromixers still cannot achieve efficient mixing for complex working conditions commonly found in industry, such as high-viscosity systems and extreme flow ratios. For passive micromixers, many complex structures and small channel sizes will cause a sharp increase in pressure drop when mixing high-viscosity fluids, increase energy consumption, and deteriorate fluidity of the fluid. Effective chaotic convection cannot be achieved by relying solely on the channel structure, and a large flow ratio will significantly increase the diffusion distance, resulting in deterioration of mixing performance. Therefore, active micromixers are more commonly used, but active micromixers mostly use an integrated structure, which is difficult to maintain and easy to clog, affecting the convenience of use. Summary of the invention

[0005] Based on this, it is necessary to provide a stirring micro-mixer and mixing system with detachable connection, easy installation and disassembly, and convenient maintenance and cleaning to address the problem that the current active micro-mixer is an integrated structure that is difficult to maintain and easy to clog.

[0006] A stirring micro mixer, comprising:

[0007] An inlet part, wherein the inlet part has a premixing chamber, a first mixing chamber and a plurality of feed chambers, wherein the plurality of feed chambers are respectively connected to the premixing chamber, and the premixing chamber is also connected to the first mixing chamber;

[0008] an outlet part, which is detachably and sealingly disposed on the top of the inlet part, wherein the outlet part has an outlet channel, and the outlet channel is communicated with the first mixing chamber; and

[0009] A rotating assembly rotatably disposed in the first mixing chamber;

[0010] After the raw materials enter the premixing chamber through multiple feed chambers, they are premixed in the premixing chamber and transported to the first mixing chamber. The rotating component mixes the raw materials in the first mixing chamber and sends the mixed products out through the outlet channel.

[0011] In one embodiment, the inlet part further comprises a first connecting cavity, and the end of the outlet part facing the inlet part comprises a first connecting section, and the first connecting section is detachably and sealingly installed in the first connecting cavity;

[0012] The first connecting cavity has an internal thread, the first connecting section has an external thread, and the first connecting section is installed in the first connecting cavity in a threaded connection manner;

[0013] The diameter of the first mixing chamber is larger than the diameter of the premixing chamber and smaller than the diameter of the first connecting chamber.

[0014] In one embodiment, the outlet channel includes a first outlet cavity and a second outlet cavity, the first outlet cavity is arranged in the first connecting section, the second outlet cavity is arranged in the outlet part, the first outlet cavity communicates with the first connecting cavity and the second outlet cavity, and the second outlet cavity is used to install a discharge joint of the mixing system;

[0015] A diameter of the first outlet cavity is smaller than a diameter of the second outlet cavity.

[0016] In one embodiment, the stirring micromixer further comprises an intermediate part, which is detachable and sealingly disposed between the inlet part and the outlet part;

[0017] The intermediate part has a second mixing chamber, the second mixing chamber is connected to the first mixing chamber and the outlet channel, and the rotating assembly is arranged in the second mixing chamber.

[0018] In one embodiment, there are multiple intermediate parts, and the second mixing chamber of each intermediate part is provided with one rotating assembly;

[0019] A plurality of the intermediate parts are stacked and connected, and the inlet part is arranged at the bottom of the stacked intermediate parts, and the outlet part is arranged at the top.

[0020] In one embodiment, the intermediate part includes a connecting body and a second connecting section, the second connecting section is arranged on a surface of the connecting body facing the inlet part, the connecting body has a second connecting cavity, the second connecting section has the second mixing cavity, and the second connecting cavity is connected to the second mixing cavity;

[0021] The second connecting section has an external thread, and the second connecting cavity has an internal thread; the diameter of the second mixing cavity is smaller than the diameter of the second connecting cavity;

[0022] When the intermediate part connects the inlet part and the outlet part, the second connecting section is installed on the inlet part, and the second connecting cavity is connected to the outlet part;

[0023] When multiple intermediate parts are stacked and connected, the second connecting section of the intermediate part is installed in the second connecting cavity of the intermediate part below, the second connecting section at the bottom of the stacked intermediate parts is set on the inlet part, and the second connecting cavity at the top is installed with the outlet part.

[0024] In one embodiment, the rotating assembly includes a rotor and a porous gasket;

[0025] When the stirring micro-mixer includes an inlet part and an outlet part, the rotor can be rotatably disposed in the first mixing chamber; when the stirring micro-mixer further includes at least one intermediate part, the rotor can be rotatably disposed in the first mixing chamber and the second mixing chamber of the intermediate part;

[0026] The rotating assembly further comprises a sealing member, wherein the sealing member is disposed on the edge of the porous gasket;

[0027] The rotor is a magneton, which is located in the magnetic field of the magnetic stirrer of the mixing system.

[0028] A stirring micro mixer, comprising:

[0029] An inlet part, wherein the inlet part has a premixing chamber, a first mixing chamber, a first connecting chamber and a plurality of feed chambers, wherein the plurality of feed chambers are respectively connected to the premixing chamber, and the premixing chamber is also connected to the first mixing chamber;

[0030] an outlet part, wherein the outlet part has a first connecting section and an outlet passage penetrating the outlet part, the outlet part is installed in the first connecting cavity through the first connecting section, and the outlet passage is communicated with the first mixing cavity; and

[0031] A rotating assembly rotatably disposed in the first mixing chamber;

[0032] After the raw materials enter the premixing chamber through multiple feed chambers, they are premixed in the premixing chamber and transported to the first mixing chamber. The rotating component mixes the raw materials in the first mixing chamber and sends the mixed products out through the outlet channel.

[0033] A stirring micro mixer, comprising:

[0034] An inlet part, wherein the inlet part has a premixing chamber, a first mixing chamber, a first connecting chamber and a plurality of feed chambers, wherein the plurality of feed chambers are respectively connected to the premixing chamber, and the premixing chamber is also connected to the first mixing chamber;

[0035] An outlet part, wherein the outlet part has a first connecting section and an outlet passage passing through the outlet part;

[0036] at least one intermediate part, disposed between the inlet part and the outlet part, the intermediate part having a second mixing chamber, a second connecting chamber and a second connecting section, the second mixing chamber being connected to the second connecting chamber and penetrating the intermediate part, the second connecting section being located at the bottom of the intermediate part, the second mixing chamber being located at the second connecting section, the second connecting section being detachably and sealingly connected to the first connecting chamber or the second connecting chamber of the adjacent intermediate part, the first connecting section being detachably connected to the second connecting chamber, so that the premixing chamber, the first mixing chamber, the second mixing chamber and the outlet channel are connected; and

[0037] A rotating assembly, rotatably disposed in the first mixing chamber and the second mixing chamber respectively;

[0038] After the raw materials enter the premixing chamber through multiple feed chambers, they are premixed in the premixing chamber and transported to the first mixing chamber, mixed once by the rotating component in the first mixing chamber, and transported to the second mixing chamber, mixed at least twice by the rotating component in the second mixing chamber, and the mixed product is sent out through the outlet channel.

[0039] A mixing system comprises a magnetic stirrer, a discharge assembly, a plurality of feed assemblies and a stirring micro-mixer as described in any of the above technical features, wherein the discharge assembly comprises a discharge pipe, a discharge joint and a product collecting piece, each of the feed assemblies comprises a feed pipe, a feed pump, a raw material tank and a feed joint, the feed pipe connects the raw material tank and the feed joint, the feed pump is arranged in the feed pipe, the feed joint is arranged in the feed chamber of the stirring micro-mixer, the discharge pipe connects the discharge joint and the product collecting piece, and the discharge joint is installed in the outlet channel of the stirring micro-mixer.

[0040] After adopting the above technical solution, the present invention has at least the following technical effects:

[0041] The stirring micro-mixer and mixing system of the present invention are characterized in that the inlet part and the outlet part of the stirring micro-mixer are detachably sealed and connected, the inlet part has a premixing chamber, a first mixing chamber and a plurality of feed chambers, the plurality of feed chambers are arranged in the inlet part, a feed joint of a feed component of the mixing system is installed in each feed chamber, the plurality of feed chambers are respectively connected with the premixing chamber, the premixing chamber is also connected with the first mixing chamber, the rotating component is arranged in the first mixing chamber, the first mixing chamber is connected with the outlet channel of the outlet part, and the outlet channel is installed with a discharge joint of a discharge component of the mixing system.

[0042] When the stirring micro-mixer is working, the mixing system transports the raw materials to the feed chamber through the feed joint, and the raw materials in the feed chamber are respectively transported to the premixing chamber for premixing to enhance the mixing performance. The premixed raw materials enter the first mixing chamber, and the rotating component rotates in the first mixing chamber to mix the various raw materials. The mixed product is transported to the outlet part through the outlet channel and then sent out through the discharge joint.

[0043] The stirring micro-mixer adopts a structural form in which the inlet part and the outlet part are detachably and sealedly connected, and a rotating component is arranged in the inlet part, and an active micro-mixer is formed in cooperation with the magnetic stirrer of the mixing system. The magnetic stirrer controls the rotation of the rotating component in the first mixing chamber to introduce a rotating flow field as an external force field to strengthen the mixing process of the fluid under complex working conditions, introduce a premixing step before stirring to strengthen the mixing performance, improve the energy input to the unit fluid, and improve the uniformity of the energy input, thereby satisfying the stirring for the mixer in the liquid-liquid homogeneous, liquid-liquid heterogeneous, liquid-solid, liquid-liquid-solid and other reaction systems with high requirements for the raw material mixing quality. In addition, the stirring micro-mixer has a simple structure, is easy to assemble, is easy to disassemble, and is easy to maintain and clean, and is particularly suitable for systems containing solids and prone to clogging. BRIEF DESCRIPTION OF THE DRAWINGS

[0044] Figure 1 Schematic diagram of a mixing system in one embodiment of the present invention, wherein the stirring micro-mixer is a four-stage stirring and mixing structure;

[0045] Figure 2 for Figure 1 Schematic diagram of the inlet parts in the stirring micromixer shown;

[0046] Figure 3 for Figure 1 A schematic diagram of the intermediate parts in the stirring micromixer shown;

[0047] Figure 4 for Figure 1 A schematic diagram of the outlet parts in the stirring micromixer shown;

[0048] Figure 5 for Figure 1 An exploded schematic diagram of the rotating components in the stirring micromixer is shown.

[0049] Wherein: 10, mixing system; 100, stirring micro mixer; 110, inlet part; 111, feed chamber; 112, premixing chamber; 113, first mixing chamber; 114, conveying chamber; 115, first connecting chamber; 120, outlet part; 121, outlet body; 122, first connecting section; 123, outlet channel; 1231, first outlet chamber; 1232, second outlet chamber; 130, intermediate part; 131, intermediate body; 132. Second connecting section; 133. Second mixing chamber; 134. Second connecting chamber; 140. Rotating assembly; 141. Rotor; 142. Porous gasket; 143. Sealing member; 200. Feed assembly; 210. Feed pipe; 220. Feed connector; 230. Feed pump; 240. Raw material tank; 300. Magnetic stirrer; 400. Discharge assembly; 410. Discharge pipe; 420. Discharge connector; 430. Product collecting member. DETAILED DESCRIPTION

[0050] In order to make the above-mentioned objects, features and advantages of the present invention more obvious and easy to understand, the specific embodiments of the present invention are described in detail below in conjunction with the accompanying drawings. In the following description, many specific details are set forth to facilitate a full understanding of the present invention. However, the present invention can be implemented in many other ways different from those described herein, and those skilled in the art can make similar improvements without violating the connotation of the present invention, so the present invention is not limited by the specific embodiments disclosed below.

[0051] In the description of the present invention, it should be understood that the terms "center", "longitudinal", "lateral", "length", "width", "thickness", "up", "down", "front", "back", "left", "right", "vertical", "horizontal", "top", "bottom", "inside", "outside", "clockwise", "counterclockwise", "axial", "radial", "circumferential" and the like indicate orientations or positional relationships based on the orientations or positional relationships shown in the accompanying drawings, and are only for the convenience of describing the present invention and simplifying the description, and do not indicate or imply that the referred device or element must have a specific orientation, be constructed and operated in a specific orientation, and therefore should not be understood as limiting the present invention.

[0052] In addition, the terms "first" and "second" are used for descriptive purposes only and should not be understood as indicating or implying relative importance or implicitly indicating the number of the indicated technical features. Therefore, the features defined as "first" and "second" may explicitly or implicitly include at least one of the features. In the description of the present invention, the meaning of "plurality" is at least two, such as two, three, etc., unless otherwise clearly and specifically defined.

[0053] In the present invention, unless otherwise clearly specified and limited, the terms "installed", "connected", "connected", "fixed" and the like should be understood in a broad sense, for example, it can be a fixed connection, a detachable connection, or an integral connection; it can be a mechanical connection or an electrical connection; it can be a direct connection or an indirect connection through an intermediate medium, it can be the internal connection of two elements or the interaction relationship between two elements, unless otherwise clearly defined. For ordinary technicians in this field, the specific meanings of the above terms in the present invention can be understood according to specific circumstances.

[0054] In the present invention, unless otherwise clearly specified and limited, a first feature being "above" or "below" a second feature may mean that the first and second features are in direct contact, or the first and second features are in indirect contact through an intermediate medium. Moreover, a first feature being "above", "above" or "above" a second feature may mean that the first feature is directly above or obliquely above the second feature, or simply means that the first feature is higher in level than the second feature. A first feature being "below", "below" or "below" a second feature may mean that the first feature is directly below or obliquely below the second feature, or simply means that the first feature is lower in level than the second feature.

[0055] It should be noted that when an element is referred to as being "fixed to" or "disposed on" another element, it may be directly on the other element or there may be a central element. When an element is considered to be "connected to" another element, it may be directly connected to the other element or there may be a central element at the same time. The terms "vertical", "horizontal", "upper", "lower", "left", "right" and similar expressions used herein are for illustrative purposes only and are not intended to be the only implementation method.

[0056] See also Figures 1 to 5 The present invention provides a stirring micro mixer 100. The stirring micro mixer 100 is used to achieve mixing of raw materials of liquid-liquid homogeneous, liquid-liquid heterogeneous, liquid-solid, liquid-liquid-solid and other reaction systems. It can be understood that the current active micro mixers are mostly integrated structures, which are not easy to maintain and are easy to clog, affecting the performance.

[0057] To this end, the present invention provides a novel stirring micro-mixer 100, which is a detachable sealing structure, easy to assemble, easy to disassemble, and convenient to maintain and clean. At the same time, the stirring micro-mixer 100 can also strengthen the mixing process of fluids under complex working conditions, introduce a premixing step before stirring to strengthen the mixing performance, and ensure the mixing effect of the raw materials. The specific structure of the stirring micro-mixer 100 of an embodiment is introduced below.

[0058] See also Figures 1 to 5In one embodiment, the stirring micro mixer 100 includes an inlet part 110 and an outlet part 120. The inlet part 110 has a premixing chamber 112, a first mixing chamber 113 and a plurality of feed chambers 111. The plurality of feed chambers 111 are respectively connected to the premixing chamber 112, and the premixing chamber 112 is also connected to the first mixing chamber 113. The outlet part 120 is detachably and sealedly arranged on the top of the inlet part 110. The outlet part 120 has an outlet channel 123, and the outlet channel 123 is connected to the first mixing chamber 113. The rotating component 140 is rotatably arranged in the first mixing chamber 113. After the raw materials enter the premixing chamber 112 through the plurality of feed chambers 111, they are premixed in the premixing chamber 112 and transported to the first mixing chamber 113. The rotating component 140 mixes the raw materials in the first mixing chamber 113 and sends the mixed product out through the outlet channel 123.

[0059] The stirring micro-mixer 100 adopts a structure in which multiple parts can be detachably connected, so that the stirring micro-mixer 100 can be easily disassembled for maintenance and cleaning, effectively solving the problem that the stirring micro-mixer 100 is an integrated structure that is difficult to maintain and easy to clog. When the stirring micro-mixer 100 is used, the various parts are directly spliced, and the sealing of the joints can be ensured. After use, the various parts are disassembled for maintenance and cleaning. Moreover, when the stirring micro-mixer 100 is clogged during use, the parts can be directly disassembled for processing.

[0060] Specifically, the stirring micro mixer 100 includes an inlet part 110, an outlet part 120 and a rotating assembly 140. The inlet part 110 is arranged at the bottom and installed near the center of the magnetic stirrer 300. The outlet part 120 is arranged on the top of the inlet part 110, and the outlet part 120 is detachably sealed and connected to the inlet part 110. The rotating assembly 140 is rotatably arranged in the inlet part 110. The mixing system 10 conveys the raw materials into the inlet part 110, and the rotating assembly 140 rotates in the inlet part 110 so that the raw materials are mixed in the inlet part 110. After the raw materials are mixed, a product is formed, and the product is output through the outlet part 120. After the rotating assembly 140 rotates in the inlet part 110, the raw materials can be stirred and mixed, so that a variety of raw materials are fully mixed to ensure the uniformity of the mixing.

[0061] After the inlet part 110 and the outlet part 120 are detachably sealed and connected, the inlet part 110 and the outlet part 120 form an integral structure, that is, the stirring micro-mixer 100. The inlet part 110 and the outlet part 120 are sealed and connected at the connection, so as to prevent the raw material from being exposed from the connection between the inlet part 110 and the outlet part 120. Moreover, the inlet part 110 and the outlet part 120 are easy to assemble, easy to use materials, and easy to maintain and clean.

[0062] The inlet part 110 has a premixing chamber 112, a first mixing chamber 113 and a plurality of feed chambers 111. The plurality of feed chambers 111 are arranged at intervals on the side of the inlet part 110, and each feed chamber 111 is used to convey a type of raw material. The plurality of feed chambers 111 are respectively connected to the premixing chamber 112, and the premixing chamber 112 is connected to the first mixing chamber 113. In other words, the premixing chamber 112 realizes the connection between the first mixing chamber 113 and the plurality of feed chambers 111. The premixing chamber 112 is used to realize the premixing of raw materials to enhance the mixing performance. The rotating assembly 140 can be rotatably arranged in the first mixing chamber 113 to realize the stirring and mixing of the raw materials.

[0063] In this way, after the multiple feed chambers 111 convey the corresponding raw materials to the premixing chamber 112, the multiple types of raw materials are premixed in the premixing chamber 112. The raw materials premixed in the premixing chamber 112 are conveyed to the first mixing chamber 113. When the rotating assembly 140 rotates, it can stir and mix the multiple raw materials, so that the multiple raw materials are fully mixed to ensure the uniformity of the mixing.

[0064] Moreover, the outlet part 120 has an outlet channel 123, and the outlet part 120 is detachably arranged behind the inlet part 110, and the outlet channel 123 is connected to the first mixing chamber 113. In this way, after the raw materials are evenly mixed in the first mixing chamber 113, they are sent out of the stirring micro-mixer 100 through the outlet channel 123 of the outlet part 120 and stored in a corresponding area such as the product collection part 430 for later use.

[0065] See also Figures 1 to 5The stirring micro-mixer 100 of the above embodiment adopts a structure in which the inlet part 110 and the outlet part 120 are detachably and sealedly connected, and a rotating assembly 140 is arranged in the inlet part 110, and an active micro-mixer is formed in cooperation with the magnetic stirrer 300 of the mixing system 10. The magnetic stirrer 300 controls the rotation of the rotating assembly 140 in the first mixing chamber 113 to introduce a rotating flow field as an external force field to strengthen the mixing process of the fluid under complex working conditions, introduce a premixing step before stirring to strengthen the mixing performance, improve the energy input per unit fluid, and improve the uniformity of energy input, thereby satisfying the requirements for product quality in the reaction process in which the stirring is a mixer in liquid-liquid homogeneous, liquid-liquid heterogeneous, liquid-solid, liquid-liquid-solid and other reaction systems with high requirements for the mixing quality of raw materials. Moreover, the stirring micro-mixer 100 has a simple structure, is easy to assemble, easy to disassemble, and easy to maintain and clean, and is particularly suitable for systems containing solids and prone to clogging.

[0066] It is worth noting that the stirring micro-mixer 100 realizes the mixing of multiple raw materials, and the multiple raw materials are evenly mixed to form a product. In the process of mixing the raw materials to form the product, for the sake of simplicity, they are collectively referred to as raw materials or materials, and will not be repeated in the following text. When the stirring micro-mixer 100 mixes the raw materials, the raw materials flow from bottom to top, mainly because the force provided by the feed pump 230 during the raw material delivery cooperates with the force of the rotation of the rotating assembly 140, so that the raw materials flow upward after mixing.

[0067] See also Figure 2 Optionally, the feed chamber 111, the premixing chamber 112, the first mixing chamber 113 and the outlet channel 123 are cylindrical. This can avoid the appearance of corners in the chamber and facilitate the flow of raw materials. Optionally, the appearance of the inlet part 110 and the outlet part 120 is cylindrical. Of course, in other embodiments of the present invention, the cross-sectional shape of the inlet part 110 and the outlet part 120 can also be a polygon, etc.

[0068] See also Figure 1 and Figure 2 , optionally, the premixing chamber 112 is located below the first mixing chamber 113. Optionally, the feed chamber 111 is arranged along the radial direction or the tangential direction of the inlet part 110. Optionally, the number of the feed chambers 111 is two, and the two feed chambers 111 are arranged at intervals along the circumference of the inlet part 110. Each feed chamber 111 is used to convey one type of raw material. Of course, in other embodiments of the present invention, the number of the feed chambers 111 can be more, and more feed chambers 111 are arranged at intervals along the circumference of the inlet part 110.

[0069] See also Figure 1Optionally, the feed chamber 111 is used for detachably installing the feed connector 220 of the feed assembly 200 in the mixing system 10. In this way, the feed connector 220 can transport the raw materials to the feed chamber 111. Optionally, the feed connector 220 is detachably installed in the feed chamber 111 by plugging and unplugging. Optionally, the inner wall of the feed chamber 111 is provided with an internal thread, and the outer wall of the feed connector 220 is provided with an external thread, and the feed connector 220 is installed in the feed chamber 111 by threaded connection. Of course, in other embodiments of the present invention, the feed connector 220 can also be installed in the feed chamber 111 by other methods, as long as the sealing of the connection between the two is guaranteed.

[0070] See also Figure 2 In one embodiment, the inlet part 110 further has a plurality of conveying chambers 114, which are respectively connected to the feed chamber 111 and the premixing chamber 112, and are used to convey the raw materials in the feed chamber 111 to the premixing chamber 112. One end of the conveying chamber 114 is connected to the feed chamber 111, and the other end of the conveying chamber 114 is connected to the premixing chamber 112, and the raw materials in the feed chamber 111 are conveyed to the premixing chamber 112 through the conveying chamber 114.

[0071] Optionally, the diameter of the delivery chamber 114 is smaller than the height of the premixing unit. In this way, it is possible to prevent the delivery chamber 114 from delivering too much raw material, ensure the premixing effect of the raw material in the premixing chamber 112, and enhance the mixing performance. It can be understood that the delivery chamber 114 extends along the radial direction of the inlet part 110 to connect the premixing chamber 112 with the feed chamber 111. The longitudinal cross-section of the delivery chamber 114 is circular. Optionally, the diameter of the delivery chamber 114 ranges from 0.2 mm to 0.7 mm. Optionally, the diameter of the delivery chamber 114 is 0.5 mm.

[0072] See also Figure 1 , Figure 2 and Figure 4 In one embodiment, the inlet part 110 further has a first connecting cavity 115 , and the outlet part 120 has a first connecting section 122 at the end facing the inlet part 110 , and the first connecting section 122 is detachable and sealedly installed in the first connecting cavity 115 .

[0073] The top of the inlet part 110 is provided with a first connecting cavity 115, and the first connecting cavity 115 is connected to the first mixing cavity 113. When the outlet part 120 is connected to the inlet part 110, the first connecting section 122 of the outlet part 120 is detachably installed in the first connecting cavity 115, so as to realize a detachable sealed connection with the inlet part 110. Moreover, after the outlet part 120 is connected to the inlet part 110, the outlet channel 123 of the outlet part 120 will extend into the first connecting cavity 115, and then be connected to the first mixing cavity 113. In this way, after the multiple raw materials are evenly mixed in the first mixing cavity 113, they are directly sent out of the stirring micro-mixer 100 through the outlet channel 123.

[0074] like Figure 2 As shown, the premixing chamber 112, the first mixing chamber 113 and the first connecting chamber 115 of the inlet part 110 are arranged in sequence from bottom to top. In this way, the raw materials premixed in the premixing chamber 112 are transported to the first mixing chamber 113, and after being uniformly mixed in the first mixing chamber 113 by the rotating assembly 140, they are then sent out through the outlet channel 123 in the first connecting chamber 115. Optionally, the diameter of the first mixing chamber 113 is larger than the diameter of the premixing chamber 112, and smaller than the diameter of the first connecting chamber 115. In other words, the diameters of the premixing chamber 112, the first mixing chamber 113 and the first connecting chamber 115 increase in sequence from bottom to top.

[0075] Optionally, the first connection cavity 115 has an internal thread, the first connection section 122 has an external thread, and the first connection section 122 is threadedly installed in the first connection cavity 115. In other words, the first connection section 122 is threadedly connected to the first connection cavity 115, so that the inlet part 110 and the outlet part 120 are connected by threaded connection, which ensures the sealing of the connection between the two, and is convenient for assembly and disassembly, and is convenient for later maintenance and cleaning.

[0076] Of course, in other embodiments of the present invention, the first connecting section 122 can also be installed in the first connecting cavity 115 by plugging and unplugging. In addition, radial claws are provided on the outer wall of the first connecting section 122, and the radial claws are clamped on the inner wall of the first connecting cavity 115 to ensure that the first connecting section 122 is reliably installed in the first installation cavity. When disassembling, a large force is applied to the outlet part 120 to pull the first connecting section 122 out of the first connecting cavity 115. Optionally, a sealing gasket can be provided between the first connecting section 122 and the first connecting cavity 115 to ensure the sealing between the first connecting section 122 and the first connecting cavity 115.

[0077] It is worth noting that the plug-in connection structure has been described as an implementable method here, and the present invention can also adopt other structures that can implement the plug-in connection. Moreover, the plug-in connection structure of the rest of the present invention is substantially the same as the structure of the first connection section 122 plug-in connection to the first connection cavity 115, and will not be repeated in the following text.

[0078] Of course, in other embodiments of the present invention, the first connecting section 122 may also be provided at the inlet part 110, and the outlet part 120 may be provided with the first connecting cavity 115. In other words, the first connecting cavity 115 and the first connecting section 122 are interchanged in their locations. It is worth noting that the coordination principle of the first connecting section 122 provided at the outlet part 120 and the first connecting cavity 115 provided at the inlet part 110 is substantially the same, but the structure is slightly changed, which will not be described here. Only the first connecting section 122 provided at the outlet part 120 is used as an example for description.

[0079] See also Figure 1 and Figure 4 In one embodiment, the outlet channel 123 includes a first outlet chamber 1231 and a second outlet chamber 1232, the first outlet chamber 1231 is arranged on the first connecting section 122, the second outlet chamber 1232 is arranged on the outlet part 120, the first outlet chamber 1231 connects the first connecting chamber 115 and the second outlet chamber 1232, and the second outlet chamber 1232 is used to install the discharge connector 420 of the mixing system 10.

[0080] That is, the outlet channel 123 includes two cavities, namely, the first outlet cavity 1231 and the second outlet cavity 1232, and the first outlet cavity 1231 is connected with the second outlet cavity 1232 and penetrates the outlet part 120. The first outlet cavity 1231 is installed in the first connecting cavity 115 of the inlet part 110 through the first connecting section 122, so that the first outlet cavity 1231 can be connected with the first mixing cavity 113, so that the mixed product enters the first outlet cavity 1231 through the first mixing cavity 113. After the discharge connector 420 is installed in the second outlet cavity 1232, the discharge connector 420 abuts against the bottom wall of the second outlet cavity 1232, and the discharge connector 420 is connected with the first outlet cavity 1231. In this way, the product is transported to the discharge connector 420 through the first outlet cavity 1231.

[0081] Optionally, the second outlet cavity 1232 has an internal thread, the discharge connector 420 has an external thread, and the discharge connector 420 is installed in the second outlet cavity 1232 by threaded connection. Of course, in other embodiments of the present invention, the discharge connector 420 can also be installed in the second outlet cavity 1232 by plug-in connection.

[0082] See also Figure 1 and Figure 4 In one embodiment, the outlet part 120 includes an outlet body 121 and the first connecting section 122 mentioned above, and the first connecting section 122 is arranged on the surface of the outlet body 121 facing the inlet part 110. The first outlet cavity 1231 is arranged in the first connecting section 122, and the second outlet cavity 1232 is arranged in the outlet body 121. In this way, after the outlet part 120 is installed in the inlet part 110, the first connecting section 122 is located in the first connecting cavity 115 of the inlet part 110, and the outlet body 121 of the outlet part 120 contacts the top of the inlet part 110, so as to ensure that the outlet part 120 and the inlet part 110 are tightly connected.

[0083] Optionally, the first connecting section 122 and the outlet body 121 are an integral structure to ensure the structural strength of the outlet part 120. Of course, in other embodiments of the present invention, the first connecting section 122 and the outlet body 121 may also be separately provided and connected by gluing or welding, as long as the reliability of the connection between the first connecting section 122 and the outlet body 121 is ensured.

[0084] See also Figure 4 In one embodiment, the diameter of the first outlet cavity 1231 is smaller than the diameter of the second outlet cavity 1232. That is, the diameters of the first outlet cavity 1231 and the second outlet cavity 1232 increase from bottom to top, so that the discharge connector 420 can be installed in the second outlet cavity 1232 and connected to the first outlet cavity 1231. Optionally, the end of the first outlet cavity 1231 connected to the second outlet cavity 1232 can extend to the outlet body 121.

[0085] Optionally, the diameter of the premixing chamber 112 ranges from 1 mm to 5 mm, and the height of the premixing chamber 112 ranges from 1 mm to 10 mm. Optionally, the diameter of the first mixing chamber 113 ranges from 6 mm to 15 mm, and the height of the first mixing chamber 113 ranges from 4 mm to 10 mm. The direction of the height dimension here refers to the up and down direction of the stirring micromixer 100. The height dimension of the first connecting chamber 115 ranges from 5 mm to 10 mm. The height dimension of the first connecting section 122 ranges from 4 mm to 9 mm. The diameter of the first outlet chamber 1231 ranges from 1 mm to 5 mm, and the height of the first outlet chamber 1231 ranges from 2 mm to 10 mm. The height dimension of the second outlet chamber 1232 ranges from 5 mm to 8.5 mm.

[0086] See also Figures 1 to 5In one embodiment, the stirring micro-mixer 100 further includes an intermediate part 130, which is detachably and sealedly disposed between the inlet part 110 and the outlet part 120, and the rotating assembly 140 is rotatably disposed in the intermediate part 130. The intermediate part 130, which is detachably and sealedly connected, is disposed between the inlet part 110 and the outlet part 120. The bottom of the intermediate part 130 is detachably and sealedly connected to the inlet part 110, and the top of the intermediate part 130 is detachably and sealedly connected to the outlet part 120.

[0087] The stirring and mixing stages of the stirring micro-mixer 100 are increased by the intermediate part 130 to improve the mixing under high viscosity system and large flow conditions and enhance the mixing performance. That is, after the intermediate part 130 is provided, the inlet part 110 and the intermediate part 130 can increase the stirring and mixing stages of the raw materials, and the intermediate part 130 can stir and mix the raw materials again to enhance the uniformity of the raw material mixing.

[0088] Moreover, the rotating assembly 140 can be rotatably arranged in the intermediate part 130. That is, the number of the rotating assembly 140 is equal to the sum of the number of the intermediate parts 130 and the inlet part 110, one rotating assembly 140 is arranged in the first mixing chamber 113 of the inlet part 110, and one rotating assembly 140 is arranged in each intermediate part 130, and the secondary mixing of the raw materials in the intermediate part 130 is achieved by the rotation of the rotating assembly 140 in the intermediate part 130.

[0089] When the stirring micro-mixer 100 is assembled, the intermediate part 130 is detachably sealed and installed on the top of the inlet part 110, and the outlet part 120 is detachably sealed and installed on the top of the outlet part 120. When the stirring micro-mixer 100 is working, a variety of raw materials are respectively transported to the premixing chamber 112, and after being premixed in the premixing chamber 112, they are transported to the first mixing chamber 113 for primary mixing through the rotating assembly 140. The raw materials after primary mixing are transported to the intermediate part 130, and are secondary mixed through the rotating assembly 140 in the intermediate part 130, so that the raw materials are mixed evenly and the mixing performance is enhanced. The mixed product is transported by the intermediate part 130 and sent out through the outlet channel 123 of the outlet part 120.

[0090] See also Figures 1 to 5 In one embodiment, the intermediate part 130 has a second mixing chamber 133, the second mixing chamber 133 communicates with the first mixing chamber 113 and the outlet channel 123, and a rotating assembly 140 is disposed in the second mixing chamber 133. The intermediate part 130 is hollow and has a hollow second mixing chamber 133, and the rotating assembly 140 is rotatably mounted in the second mixing chamber 133.

[0091] When the stirring micro-mixer 100 is assembled, the intermediate part 130 is detachably sealed and disposed between the inlet part 110 and the outlet part 120, and one end of the second mixing chamber 133 is connected to the first mixing chamber 113 of the inlet part 110, and the other end of the second mixing chamber 133 is connected to the first outlet chamber 1231 of the outlet part 120. In this way, when the stirring micro-mixer 100 is working, a plurality of raw materials are premixed through the premixing chamber 112 and then transported to the first mixing chamber 113, stirred and mixed by the rotating assembly 140 in the first mixing chamber 113, and then transported to the second mixing chamber 133, and stirred and mixed again by the rotating assembly 140 in the second mixing chamber 133, and the product is sent out through the first outlet chamber 1231 after being mixed evenly.

[0092] Optionally, the middle part 130 is cylindrical. Of course, in other embodiments of the present invention, the cross-sectional shape of the middle part 130 can also be a polygon such as a quadrilateral, a hexagon, etc. Optionally, the second mixing chamber 133 is cylindrical. Optionally, the diameter of the second mixing chamber 133 ranges from 6 mm to 15 mm, and the height of the second mixing chamber 133 ranges from 4 mm to 10 mm.

[0093] See also Figures 1 to 5 In one embodiment, the number of the intermediate part 130 is one, and a rotating assembly 140 is disposed in the first mixing chamber 113 of the intermediate part 130. In this way, after the stirring micro-mixer 100 is assembled, a two-stage mixing structure is formed, that is, the inlet part 110 is for the first-stage mixing, and the intermediate part 130 is for the second-stage mixing. The stirring micro-mixer 100 achieves uniform mixing of the raw materials by the second-stage mixing method.

[0094] See also Figures 1 to 5 In one embodiment, there are multiple intermediate parts 130, and each of the second mixing chambers 133 of the intermediate parts 130 is provided with one rotating assembly 140. Multiple intermediate parts 130 are stacked and connected, and the inlet part 110 is provided at the bottom of the stacked intermediate parts 130, and the outlet part 120 is provided at the top.

[0095] That is, there are multiple intermediate parts 130 between the inlet part 110 and the outlet part 120, and each intermediate part 130 is provided with a corresponding rotating assembly 140, which can be stirred and mixed in the corresponding second mixing chamber 133 through the corresponding rotating assembly 140, so that the stirring micro-mixer 100 forms a three-level or more mixing structure, that is, the inlet part 110 is a first-level mixing, and the multiple intermediate parts 130 are multi-level mixing. The stirring micro-mixer 100 achieves the mixing of raw materials through a three-level or more mixing method.

[0096] Optionally, the number of the intermediate parts 130 is zero to ten. When the number of the intermediate parts 130 is zero, no intermediate part 130 is arranged between the inlet part 110 and the outlet part 120, and the outlet part 120 is directly arranged on the top of the inlet part 110. When the number of the intermediate parts 130 is one, one intermediate part 130 is arranged between the inlet part 110 and the outlet part 120. When the number of the intermediate parts 130 is two, the two intermediate parts 130 are stacked and located between the inlet part 110 and the outlet part 120, and the intermediate part 130 at the bottom is detachably sealed and connected to the inlet part 110 after stacking, and the intermediate part 130 at the top is detachably sealed and connected to the outlet part 120 after stacking.

[0097] It is worth noting that when there are more intermediate parts 130, the setting principle is substantially the same as the principle of two intermediate parts 130, which will not be described in detail here. Moreover, when there are more intermediate parts 130, the raw materials are sequentially transported from bottom to top into each intermediate part 130 for stirring and mixing, and the raw material transport process is substantially the same as the transport process of one intermediate part 130, except that in this embodiment, the raw materials will sequentially enter each middle armor part, which will not be described in detail here.

[0098] See also Figure 3 In one embodiment, the intermediate part 130 includes a connecting body and a second connecting section 132, wherein the second connecting section 132 is disposed on the surface of the connecting body facing the inlet part 110, the connecting body has a second connecting cavity 134, and the second connecting section 132 has a second mixing cavity 133, and the second connecting cavity 134 is connected to the second mixing cavity 133. When the intermediate part 130 connects the inlet part 110 and the outlet part 120, the second connecting section 132 is installed on the inlet part 110, and the second connecting cavity 134 is connected to the outlet part 120; when a plurality of the intermediate parts 130 are stacked and connected, the second connecting section 132 of the intermediate part 130 is installed on the second connecting cavity 134 of the lower intermediate part 130, and the second connecting section 132 at the bottom of the stacked intermediate parts 130 is arranged on the inlet part 110, and the outlet part 120 is installed in the second connecting cavity 134 at the top.

[0099] The bottom of the intermediate part 130 is a second connecting section 132, the top of the intermediate part 130 is an intermediate body 131, the second connecting section 132 is provided with a second mixing chamber 133, the intermediate body 131 is provided with a second connecting chamber 134, and the second mixing chamber 133 is communicated with the second connecting chamber 134. When an intermediate part 130 connects the outlet part 120 and the inlet part 110, the intermediate part 130 is detachably installed in the first connecting chamber 115 of the inlet part 110 through the second connecting section 132, and the outlet part 120 is detachably installed in the second connecting chamber 134 through the first connecting section 122, so that the intermediate part 130 is detachably sealed with the inlet part 110 and the outlet part 120. At this time, the second mixing chamber 133 is communicated with the first outlet chamber 1231 and the first mixing chamber 113.

[0100] When there are two intermediate parts 130, the two intermediate parts 130 are stacked, at the top position and the bottom position respectively, and the second connecting section 132 of the intermediate part 130 at the top position is installed in the second connecting cavity 134 of the intermediate part 130 at the bottom position, the intermediate second connecting cavity 134 at the top position is connected to the first connecting section 122 of the outlet part 120, and the second connecting section 132 of the intermediate part 130 at the bottom position is connected to the first connecting cavity 115 of the inlet part 110, thereby realizing the assembly of the stirring micromixer 100.

[0101] When the number of the intermediate parts 130 is three, the three intermediate parts 130 are stacked, respectively at the top position, the middle position and the bottom position, and the second connecting section 132 of the intermediate part 130 at the top position is installed in the second connecting cavity 134 at the middle position, and the second connecting section 132 of the intermediate part 130 at the middle position is installed in the second connecting cavity 134 of the intermediate part 130 at the bottom position. The middle second connecting cavity 134 at the top position is connected to the first connecting section 122 of the outlet part 120, and the second connecting section 132 of the intermediate part 130 at the bottom position is connected to the first connecting cavity 115 of the inlet part 110, thereby realizing the assembly of the stirring micromixer 100.

[0102] It is worth noting that when the number of the intermediate parts 130 is greater, the connection form of each intermediate part 130 is substantially the same as the connection form when there are three intermediate parts 130, and will not be repeated here.

[0103] Optionally, the second connection section 132 has an external thread, and the second connection cavity 134 has an internal thread. That is, the second connection section 132 is installed to the second connection cavity 134 of the adjacent intermediate part 130 by threaded connection, or is installed to the first connection cavity 115 of the inlet part 110 by threaded connection, and the first connection section 122 of the outlet part 120 is installed to the second connection cavity 134 of the intermediate part 130 by threaded connection. In this way, while ensuring the sealing of the connection between the two, it is also convenient for assembly and disassembly, and convenient for later maintenance and cleaning.

[0104] Of course, in other embodiments of the present invention, the second connecting section 132 can also be installed in the second connecting cavity 134 of the adjacent intermediate part 130 by means of a plug-in connection, or can be installed in the first connecting cavity 115 of the inlet part 110 by means of a plug-in connection, and the outlet part 120 can be installed in the second connecting cavity 134 of the intermediate part 130 by means of a plug-in connection.

[0105] Optionally, the middle body 131 and the second connecting section 132 are an integral structure to ensure the overall structural strength of the middle part 130. Of course, in other embodiments of the present invention, the second connecting section 132 and the middle body 131 can also be separately provided and connected by gluing or welding, as long as the reliability of the connection between the second connecting section 132 and the outlet body 121 is ensured.

[0106] Optionally, the diameter of the second mixing chamber 133 is smaller than the diameter of the second connecting chamber 134. That is, the second mixing chamber 133 and the second connecting chamber 134 are arranged sequentially from bottom to top, and the diameter size increases sequentially from bottom to top, so that the first connecting section 122 or the second connecting section 132 can be installed in the second connecting chamber 134.

[0107] Optionally, the height of the second connecting cavity 134 ranges from 5 mm to 10 mm, and the height of the second connecting segment 132 ranges from 4 mm to 9 mm. Optionally, the diameters of the first connecting segment 122 and the second connecting segment 132 are the same, the diameters of the first connecting cavity 115 and the second connecting cavity 134 are the same, and the diameters of the first connecting segment 122 and the first connecting cavity 115 are matched, so that the first connecting segment 122 can be detachably and sealedly installed in the first connecting cavity 115.

[0108] It is worth noting that the structure of the rotating component 140 in the first mixing chamber 113 is the same as the structure of the rotating component 140 in the second mixing chamber 133, and the setting position of the rotating component 140 in the first mixing chamber 113 is substantially the same as the setting position in the second mixing chamber 133. In the present invention, only the example of setting the rotating component 140 in the first mixing chamber 113 and limiting it by the first connecting section 122 of the outlet part 120 is used for explanation.

[0109] See also Figure 1 and Figure 5 In one embodiment, the rotating assembly 140 includes a rotor 141 and a porous gasket 142. When the stirring micromixer 100 includes an inlet part 110 and an outlet part 120, the rotor 141 can be rotatably disposed in the first mixing chamber 113, and the porous gasket 142 is disposed at the end of the first mixing chamber 113 away from the premixing chamber 112; when the stirring micromixer 100 also includes at least one intermediate part 130, the rotor 141 can be rotatably disposed in the first mixing chamber 113 and the second mixing chamber 133 of the intermediate part 130.

[0110] The rotor 141 is rotatably disposed in the first mixing chamber 113, and the porous gasket 142 is disposed at the end of the first mixing chamber 113 and is located in the first connecting chamber 115. When the first connecting section 122 of the outlet part 120 is installed in the first connecting chamber 115 of the inlet part 110, the end of the first connecting section 122 will abut against the porous gasket 142, and the porous gasket 142 will be pressed against the end of the first connecting chamber 115. At this time, the porous gasket 142 limits the rotor 141 at the end of the first mixing chamber 113 to prevent the rotor 141 from flowing out of the first mixing chamber 113 along with the mixed raw materials, thereby limiting the rotor 141, so that the rotor 141 is always located in the first mixing chamber 113, and a variety of raw materials are stirred and mixed in the first mixing chamber 113. Moreover, the porous gasket 142 has a plurality of through holes, and the mixed raw materials are allowed to flow through the porous gasket 142 through the through holes. It is worth noting that the arrangement of the rotor 141 in the second mixing chamber 133 is substantially the same as that in the first mixing chamber 113, and will not be described in detail herein.

[0111] Optionally, the aperture of the through hole in the porous gasket 142 ranges from 0.5 mm to 2 mm. Optionally, the diameter of the porous gasket 142 ranges from 6 mm to 20 mm, and the diameter of the porous gasket 142 matches the diameter of the first connecting cavity 115. Optionally, the porous gasket 142 is made of stainless steel or other materials.

[0112] See also Figure 5In one embodiment, the rotating assembly 140 further includes a sealing member 143, and the sealing member 143 is disposed at the edge of the porous gasket 142. The sealing member 143 is disposed at the edge of the porous gasket 142 and the first connecting cavity 115. The sealing member 143 seals the connection between the first connecting section 122, the porous gasket 142 and the first connecting cavity 115, so that the inlet part 110 and the outlet part 120 are sealed and connected, thereby ensuring the sealing after the inlet part 110 and the outlet part 120 are connected, and preventing leakage of raw materials.

[0113] Optionally, the seal 143 is a sealing ring. Optionally, the seal 143 is made of fluororubber. Of course, in other embodiments of the present invention, the seal 143 can also be made of other materials that can achieve sealing performance, such as polytetrafluoroethylene. Optionally, the thickness of the seal 143 ranges from 0.5 mm to 2 mm, the diameter of the seal 143 ranges from 6 mm to 20 mm, and the diameter of the seal 143 is compatible with the diameter of the first connecting cavity 115.

[0114] In one embodiment, the rotor 141 is a magnet, and the magnet is located in the magnetic field of the magnetic stirrer 300 of the mixing system 10. That is, the stirrer in the mixing system 10 is the magnetic stirrer 300, and correspondingly, the rotor 141 in the rotating assembly 140 is a magnet. After the stirring micro-mixer 100 is installed on the magnetic stirrer 300, the magnetic stirrer 300 generates a magnetic field when working, and the rotor 141, which is a magnet, is in the magnetic field. The magnetic field drives the rotor 141 to rotate, and the rotor 141 stirs multiple raw materials during the rotation process to achieve mixing of multiple raw materials.

[0115] Moreover, when there is at least one intermediate part 130, the rotor 141 of the rotating structure in the intermediate part 130 is also in the magnetic field of the magnetic stirrer 300. In this way, the magnetic stirrer 300 can drive the rotor 141 of the intermediate part 130 to rotate, so as to achieve secondary mixing of multiple raw materials in the second mixing chamber 133.

[0116] Optionally, the diameter of the rotor 141 ranges from 1 mm to 8 mm, and the length of the rotor 141 ranges from 2 mm to 16 mm. Optionally, the stirring speed of the magnetic stirrer 300 ranges from 100 rpm to 2000 rpm, so as to drive the rotor 141 to rotate in the corresponding mixing chamber to achieve mixing of multiple raw materials.

[0117] In one embodiment, the inlet part 110, the outlet part 120 and the intermediate part 130 are made of stainless steel, nickel-chromium alloy, Hastelloy or organic glass. In this way, the structural strength of the inlet part 110, the outlet part 120 and the intermediate part 130 can be ensured to ensure the performance.

[0118] See also Figures 1 to 5 The stirring micro-mixer 100 of the present invention makes the following provisions for the stirring and mixing stages: when the inlet part 110 is directly connected to the outlet part 120 to form the stirring micro-mixer 100, the first mixer of the inlet part 110 is used as the mixing section, and its mixing stage is one. When the inlet part 110, a plurality of intermediate parts 130 and the outlet part 120 are combined in series to form the stirring micro-mixer 100, the first mixing chamber 113 of the inlet part 110 and a plurality of second mixing chambers 133 of the intermediate part 130 are used as the mixing section, and its mixing stage is the sum of the number of the inlet part 110 and the number of the intermediate parts 130.

[0119] See also Figures 1 to 5 In one embodiment of the present invention, the stirring micro-mixer 100 includes an inlet part 110, an outlet part 120 and a rotating assembly 140. The inlet part 110 has a premixing chamber 112, a first mixing chamber 113, a first connecting chamber 115 and a plurality of feed chambers 111, wherein the plurality of feed chambers 111 are respectively connected to the premixing chamber 112, and the premixing chamber 112 is also connected to the first mixing chamber 113. The outlet part 120 has a first connecting section 122 and an outlet channel 123 passing through the outlet part 120, wherein the outlet part 120 is installed in the first connecting chamber 115 through the first connecting section 122, and the outlet channel 123 is connected to the first mixing chamber 113. The rotating assembly 140 is rotatably disposed in the first mixing chamber 113. After the raw materials enter the premixing chamber 112 through multiple feed chambers 111, they are premixed in the premixing chamber 112 and transported to the first mixing chamber 113. The rotating component 140 mixes the raw materials in the first mixing chamber 113 and delivers the mixed product through the outlet channel 123.

[0120] In this embodiment, a first connecting cavity 115 is provided at the top of the inlet part 110, and a first connecting section 122 is provided at the bottom of the outlet part 120. The outlet part 120 is directly connected to the inlet part 110, and the outlet part 120 is installed in the first connecting cavity 115 of the inlet part 110 through the first connecting section 122. Moreover, the rotating assembly 140 is rotatably arranged in the first mixing cavity 113 of the inlet part 110. When the stirring micro-mixer 100 is assembled, the inlet part 110 is placed near the center of the magnetic stirrer 300, and the rotor 141 is placed in the first mixing cavity 113, and a porous gasket 142 and a sealing member 143 are covered in the first connecting cavity 115 to limit the position of the rotor 141. Then, the first connecting section 122 of the outlet part 120 is installed in the first connecting cavity 115 , and the feed connector 220 of the feed assembly 200 of the mixing system 10 is installed in the feed cavity 111 corresponding to the inlet part 110 , and the discharge connector 420 of the discharge assembly 400 is installed in the outlet channel 123 .

[0121] When the stirring micro-mixer 100 is working, the feed pump 230 of the feed assembly 200 delivers the raw material to the feed chamber 111, and delivers it to the premixing chamber 112 through the corresponding delivery chamber 114, and the various raw materials are premixed in the premixing chamber 112 to enhance the mixing performance. The various premixed raw materials are delivered to the first mixing chamber 113, and the rotating assembly 140 rotates in the first mixing chamber 113 to stir the various raw materials, so that the various raw materials are fully mixed and form a product, and the product is delivered to the discharge joint 420 through the outlet channel 123 of the outlet part 120.

[0122] See also Figures 1 to 5 In the second embodiment of the present invention, the stirring micro-mixer 100 includes an inlet part 110, an outlet part 120, at least one intermediate part 130 and a rotating assembly 140. The inlet part 110 has a premixing chamber 112, a first mixing chamber 113, a first connecting chamber 115 and a plurality of feed chambers 111, wherein the plurality of feed chambers 111 are respectively connected to the premixing chamber 112, and the premixing chamber 112 is also connected to the first mixing chamber 113. The outlet part 120 has a first connecting section 122 and an outlet channel 123 that passes through the outlet part 120. At least one intermediate part 130 is disposed between the inlet part 110 and the outlet part 120. The intermediate part 130 has a second mixing chamber 133, a second connecting chamber 134 and a second connecting section 132. The second mixing chamber 133 is connected to the second connecting chamber 134 and is disposed through the intermediate part 130. The second connecting section 132 is located at the bottom of the intermediate part 130. The second mixing chamber 133 is located at the second connecting section 132. The second connecting section 132 is detachably sealed and connected to the first connecting chamber 115 or the second connecting chamber 134 adjacent to the intermediate part 130. The first connecting section 122 is detachably connected to the second connecting chamber 134, so that the premixing chamber 112, the first mixing chamber 113, the second mixing chamber 133 and the outlet channel 123 are connected. The rotating assembly 140 is rotatably disposed in the first mixing chamber 113 and the second mixing chamber 133, respectively. After the raw materials enter the premixing chamber 112 through multiple feed chambers 111, they are premixed in the premixing chamber 112 and transported to the first mixing chamber 113, mixed once by the rotating component 140 in the first mixing chamber 113, and transported to the second mixing chamber 133, mixed at least twice by the rotating component 140 in the second mixing chamber 133, and the mixed product is delivered through the outlet channel 123.

[0123] In this embodiment, the top of the inlet part 110 is provided with a first connecting cavity 115, the bottom of the outlet part 120 is provided with a first connecting section 122, the top of the intermediate part 130 is provided with a second connecting cavity 134, and the bottom is provided with the first connecting cavity 115. At least one intermediate part 130 is passed between the outlet part 120 and the inlet part 110, the second connecting section 132 at the bottom of the intermediate part 130 is installed in the first connecting cavity 115 of the inlet part 110, and the outlet part 120 is installed in the second connecting cavity 134 of the intermediate part 130 through the first connecting section 122. Moreover, the rotating assembly 140 is rotatably arranged in the first mixing cavity 113 and the second mixing cavity 133 of the inlet part 110.

[0124] When the stirring micro mixer 100 is assembled, the inlet part 110 is placed near the center of the magnetic stirrer 300, and the rotor 141 is placed in the first mixing chamber 113, and a porous gasket 142 and a seal 143 are covered in the first connecting chamber 115 to limit the position of the rotor 141. Then the second connecting section 132 of the middle part 130 is connected to the first connecting chamber 115, and the rotor 141 is placed in the second mixing chamber 133, and a porous gasket 142 and a seal 143 are covered in the second connecting chamber 134. Repeat the installation of the middle part 130 to the required stirring and mixing level. Then install the first connecting section 122 of the outlet part 120 into the second connecting chamber 134 of the top middle part 130. The feed connector 220 of the feed assembly 200 of the mixing system 10 is installed in the feed chamber 111 corresponding to the inlet part 110, and the discharge connector 420 of the discharge assembly 400 is installed in the outlet channel 123.

[0125] In the stirring micro-mixer 100 of the present invention, the inlet part 110, the outlet part 120 and the intermediate part 130 are detachably sealed by threaded connection, and the specific mixing requirements are met by series combination. The stirring micro-mixer 100 is assembled by threaded connection, so that it is easy to disassemble and maintain, and is particularly suitable for systems containing solids and prone to clogging.

[0126] The stirring micro-mixer 100 realizes the miniaturization of the mixer, can ensure the uniformity of stirring and mixing, can increase the energy input per unit fluid, improve the uniformity of energy input, and is particularly beneficial to improve the fluidity and chaotic convection of high-viscosity fluid mixing. By adding a premixing chamber 112 for premixing before stirring and mixing, the mixing performance is enhanced. The stirring micro-mixer 100 can flexibly select the stirring and mixing technology according to the requirements of the mixing performance of the actual application through a series combination of multiple intermediate additions, and improve the flow rate and viscosity processing upper limit of the entire device. At the same time, the rotation speed of the rotating assembly 140 for stirring and mixing at each level is similar to avoid uneven stirring intensity, which can significantly improve the mixing under high-viscosity systems and large flow conditions, and enhance the mixing process of fluids under complex working conditions.

[0127] The stirring micro-mixer 100 has the advantages of compact structure, flexible assembly, easy maintenance, low energy consumption, uniform rotation speed of each rotating component 140 and series amplification, and is particularly suitable for complex working conditions such as high viscosity and large flow ratio, and can be applied to liquid-liquid homogeneous, liquid-liquid heterogeneous, liquid-solid, liquid-liquid-solid and other system reactions and separation processes, including but not limited to organic synthesis, polymerization, precipitation, cleaning, extraction, absorption and other application fields.

[0128] See also Figure 1 The present invention also provides a mixing system 10, comprising a magnetic stirrer 300, a discharge assembly 400, a plurality of feed assemblies 200 and a stirring micro-mixer 100 as described in any of the above embodiments, wherein the discharge assembly 400 comprises a discharge pipe 410, a discharge connector 420 and a product collecting piece 430, each of the feed assemblies 200 comprises a feed pipe 210, a feed pump 230, a raw material tank 240 and a feed connector 220, the feed pipe 210 connects the raw material tank 240 and the feed connector 220, the feed pump 230 is arranged on the feed pipe 210, the feed connector 220 is arranged on the feed chamber 111 of the stirring micro-mixer 100, the discharge pipe 410 connects the discharge connector 420 and the product collecting piece 430, and the discharge connector 420 is installed on the outlet channel 123 of the stirring micro-mixer 100. Optionally, the product collecting member 430 is a collecting tank or other components capable of collecting products.

[0129] When the mixing system 10 of the present invention is working, the feed pump 230 extracts the raw material in the raw material tank 240 through the feed pipe 210, and delivers it to the feed chamber 111 through the feed joint 220. The raw material in the feed chamber 111 is delivered to the premixing chamber 112 through the delivery chamber 114. The multiple raw materials are premixed in the premixing chamber 112 and delivered to the first mixing chamber 113. The magnetic stirrer 300 drives the rotor 141 to rotate in the first mixing chamber 113, so that the rotor 141 mixes the multiple raw materials uniformly in the first mixing chamber 113. When the raw materials need to be mixed in multiple stages, the raw materials mixed in the first mixing chamber 113 are delivered to the second mixing chamber 133, and at least one secondary mixing is performed through the corresponding rotor 141. The uniformly mixed product enters the product collecting part 430 through the outlet channel 123, the discharge joint 420 and the discharge pipe 410.

[0130] In order to better illustrate the mixing uniformity of different stirring and mixing levels, the Villermaux / Dushman reaction method was used, and two raw materials were mixed. The two raw materials were: solution A was a glycerol aqueous solution of 0.09 mol / L boric acid, 0.09 mol / L sodium hydroxide, 0.03 mol / L potassium iodide, and 0.006 mol / L potassium iodate, and solution B was a glycerol aqueous solution of perchloric acid. The following flow ratio refers to the ratio of the volume flow rate of solution A to the volume flow rate of solution B.

[0131] like Figure 1 The schematic diagram of the mixing system 10 shown in FIG. 1 is to first turn on the magnetic stirrer 300, and then use two to transport solution A and solution B from the corresponding raw material tank 240 to the feed chamber 111 of the stirring micro mixer 100. After the two raw materials flow through the premixing chamber 112, the first mixing chamber 113, and the second mixing chamber 133, they are output to the product collection part 430 through the outlet channel 123 at the top. The absorbance of the product is analyzed at 353 nm using a UV-visible spectrophotometer, and I3 is established by the external standard method. - The concentration and absorbance standard curve can be obtained according to the absorbance value of the product. - Concentration. According to the material conservation relationship in the reaction process, the I2 concentration in the product can be obtained, and the calculation formula of the partition factor is shown in formula (1):

[0132]

[0133] Where R is the flow ratio, is the concentration of perchloric acid in solution B raw material, is the concentration of potassium iodate in solution A, is the concentration of borate ions in solution A, is the concentration of I2 in the reaction product, For the reaction product concentration.

[0134] When ideal mixing is achieved, the separation factor is 0; when the mixing is not ideal at all, the separation factor is 1; the actual separation factor is between 0 and 1, and the smaller the separation factor, the better the mixing performance.

[0135] Embodiment 1:

[0136] A 50wt% glycerol aqueous solution was used as the mixing medium (viscosity = 5mPa·s). The diameter and length of the premixing chamber 112 of the inlet part 110 were 2mm and 1.2mm respectively, the inner diameter of the conveying chamber 114 was 0.5mm, the diameter and height of the first mixing chamber 113 were 6mm and 4mm respectively, the diameter and length of the drill were 3mm and 5mm respectively, the stirring and mixing level was 1, that is, the outlet part 120 was directly arranged on the inlet part 110, the diameter of the first outlet chamber 1231 was 2mm, solution A and solution B were pumped into the feed chamber 111 by the feed pump 230 at flow rates of 32mL / min and 4mL / min respectively, the flow ratio was 8, the stirring speed of the magnetic stirrer 300 was 1500rpm, the measured separation factor = 0.0042, and the mixer pressure drop = 0.010MPa.

[0137] Embodiment 2:

[0138] A 50 wt % glycerol aqueous solution was used as the mixed medium (viscosity = 5 mPa·s), and solution A and solution B were pumped into the feed chamber 111 by a feed pump 230 at flow rates of 32 mL / min and 1.6 mL / min, respectively, with a flow ratio of 20. The remaining operating conditions and structural dimensions were the same as those in Example 1, and the measured separation factor = 0.032.

[0139] Embodiment 3:

[0140] A 85 wt % glycerol aqueous solution was used as the mixing medium (viscosity = 73 mPa·s), and solution A and solution B were pumped into the feed chamber 111 by a feed pump 230 at flow rates of 24 mL / min and 3 mL / min, respectively. The flow ratio was 8, and the remaining operating conditions and structural dimensions were the same as those in Example 1. The measured separation factor = 0.087, and the mixer pressure drop = 0.12 MPa.

[0141] Embodiment 4:

[0142] A 50wt% glycerol aqueous solution was used as a mixing medium (viscosity = 5mPa·s), and solution A and solution B were pumped into the feed chamber 111 by a feed pump 230 at flow rates of 32mL / min and 4mL / min, respectively, with a flow ratio of 8, and the number of stirring and mixing stages was 4, that is, the stirring mixer included an inlet part 110, three intermediate parts 130, and an outlet part 120, and the three intermediate parts 130 were stacked between the inlet part 110 and the outlet part 120. The stirring speed of the magnetic stirrer 300 was 1500rpm, and the other structural dimensions were the same as those of Example 1. The measured separation factor = 0.0036, the mixer pressure drop = 0.034MPa, and the measured rotation speeds of the 4-stage magnetic sons were 1480rpm, 1512rpm, 1503rpm, and 1489rpm from bottom to top, respectively, and the 4-stage rotation speeds were well consistent with the set rotation speed values.

[0143] Embodiment 5:

[0144] A 85 wt % glycerol aqueous solution was used as the mixing medium (viscosity = 73 mPa·s), and solution A and solution B were pumped into the feed chamber 111 by a feed pump 230 at flow rates of 24 mL / min and 3 mL / min, respectively. The flow ratio was 8, and the number of stirring and mixing stages was 4. The remaining operating conditions and structural dimensions were the same as those in Example 4. The measured separation factor = 0.047, and the mixer pressure drop = 0.40 MPa.

[0145] Embodiment 6:

[0146] A 85 wt % glycerol aqueous solution was used as the mixing medium (viscosity = 73 mPa·s), and solution A and solution B were pumped into the feed chamber 111 by a feed pump 230 at flow rates of 12 mL / min and 1.5 mL / min, respectively. The flow ratio was 8, and the number of stirring and mixing stages was 4. The other operating conditions and structural dimensions were the same as those in Example 5. The measured separation factor = 0.080, and the mixer pressure drop = 0.19 MPa.

[0147] It can be seen that different raw material flow rates, viscosities, and mixing performances result in different pressure drops and energy consumptions of the agitator. When using the agitator, the appropriate agitation and mixing stages can be selected based on the viscosity of the raw materials and the requirements for mixing performance, so that the uniformity of the raw materials after mixing can meet the use requirements.

[0148] The technical features of the above-described embodiments may be arbitrarily combined. To make the description concise, not all possible combinations of the technical features in the above-described embodiments are described. However, as long as there is no contradiction in the combination of these technical features, they should be considered to be within the scope of this specification.

[0149] The above-mentioned embodiments only express several implementation methods of the present invention, and the descriptions thereof are relatively specific and detailed, but they cannot be understood as limiting the scope of the invention patent. It should be pointed out that, for ordinary technicians in this field, several variations and improvements can be made without departing from the concept of the present invention, and these all belong to the protection scope of the present invention. Therefore, the protection scope of the patent of the present invention shall be subject to the attached claims.

Claims

1. A stirring micro mixer, characterized in that: include: An inlet part, wherein the inlet part has a premixing chamber, a first mixing chamber, and a plurality of feed chambers, wherein the plurality of feed chambers are respectively connected to the premixing chamber, and the premixing chamber is also connected to the first mixing chamber and is located below the first mixing chamber; An outlet part, which is detachably and sealingly arranged on the top of the inlet part, and has an outlet channel, and the outlet channel is communicated with the first mixing chamber; as well as A rotating assembly rotatably disposed in the first mixing chamber; The inlet part further has a first connecting cavity, the outlet part has a first connecting section at the end facing the inlet part, the first connecting section is detachable and sealedly installed in the first connecting cavity, the first connecting cavity has an internal thread, the first connecting section has an external thread, and the first connecting section is installed in the first connecting cavity in a threaded connection manner; The outlet channel comprises a first outlet cavity and a second outlet cavity, wherein the first outlet cavity is arranged at the first connecting section, and the second outlet cavity is arranged at the outlet part, the first outlet cavity communicates with the first connecting cavity and the second outlet cavity, and the second outlet cavity is used for installing a discharge joint of a mixing system; After the raw materials enter the premixing chamber through multiple feed chambers, they are premixed in the premixing chamber and transported to the first mixing chamber. The rotating component mixes the raw materials in the first mixing chamber and sends the mixed products out through the outlet channel.

2. The stirring micromixer according to claim 1, characterized in that: The diameter of the first mixing chamber is larger than the diameter of the premixing chamber and smaller than the diameter of the first connecting chamber.

3. The stirring micromixer according to claim 2, characterized in that: A diameter of the first outlet cavity is smaller than a diameter of the second outlet cavity.

4. The stirring micromixer according to claim 1, characterized in that: The stirring micro-mixer further comprises an intermediate part, which is detachable and sealingly disposed between the inlet part and the outlet part; The intermediate part has a second mixing chamber, the second mixing chamber is connected to the first mixing chamber and the outlet channel, and the rotating assembly is arranged in the second mixing chamber.

5. The stirring micromixer according to claim 4, characterized in that: There are multiple intermediate parts, and the second mixing chamber of each intermediate part is provided with one rotating assembly; A plurality of the intermediate parts are stacked and connected, and the inlet part is arranged at the bottom of the stacked intermediate parts, and the outlet part is arranged at the top.

6. The stirring micromixer according to claim 5, characterized in that: The intermediate part comprises a connecting body and a second connecting section, wherein the second connecting section is arranged on a surface of the connecting body facing the inlet part, the connecting body has a second connecting cavity, and the second connecting section has the second mixing cavity, and the second connecting cavity is communicated with the second mixing cavity; The second connecting section has an external thread, and the second connecting cavity has an internal thread; the diameter of the second mixing cavity is smaller than the diameter of the second connecting cavity; When the intermediate part connects the inlet part and the outlet part, the second connecting section is installed on the inlet part, and the second connecting cavity is connected to the outlet part; When multiple intermediate parts are stacked and connected, the second connecting section of the intermediate part is installed in the second connecting cavity of the intermediate part below, the second connecting section at the bottom of the stacked intermediate parts is set on the inlet part, and the second connecting cavity at the top is installed with the outlet part.

7. The stirring micromixer according to any one of claims 1 to 6, characterized in that The rotating assembly includes a rotor and a porous gasket; When the stirring micro-mixer includes an inlet part and an outlet part, the rotor can be rotatably disposed in the first mixing chamber; when the stirring micro-mixer further includes at least one intermediate part, the rotor can be rotatably disposed in the first mixing chamber and the second mixing chamber of the intermediate part; The rotating assembly further comprises a sealing member, wherein the sealing member is disposed on the edge of the porous gasket; The rotor is a magneton, which is located in the magnetic field of the magnetic stirrer of the mixing system.

8. A stirring micro mixer, characterized in that: include: An inlet part, wherein the inlet part has a premixing chamber, a first mixing chamber, a first connecting chamber and a plurality of feed chambers, wherein the plurality of feed chambers are respectively connected to the premixing chamber, and the premixing chamber is also connected to the first mixing chamber; An outlet part, wherein the outlet part has a first connecting section and an outlet passage passing through the outlet part; At least one intermediate part is arranged between the inlet part and the outlet part, the intermediate part has a second mixing chamber, a second connecting chamber and a second connecting section, the second mixing chamber is communicated with the second connecting chamber and is arranged through the intermediate part, the second connecting section is located at the bottom of the intermediate part, the second mixing chamber is located at the second connecting section, the second connecting section is detachably sealed and connected to the first connecting chamber or the second connecting chamber adjacent to the intermediate part, the first connecting section is detachably connected to the second connecting chamber, so that the premixing chamber, the first mixing chamber, the second mixing chamber and the outlet channel are communicated; as well as A rotating assembly, rotatably disposed in the first mixing chamber and the second mixing chamber respectively; After the raw materials enter the premixing chamber through multiple feed chambers, they are premixed in the premixing chamber and transported to the first mixing chamber, mixed once by the rotating component in the first mixing chamber, and transported to the second mixing chamber, mixed at least twice by the rotating component in the second mixing chamber, and the mixed product is delivered through the outlet channel.

9. A hybrid system, characterized in that: It includes a magnetic stirrer, a discharge component, a plurality of feed components and the stirring micro-mixer according to any one of claims 1 to 8, wherein the discharge component includes a discharge pipe, a discharge joint and a product collecting piece, each of the feed components includes a feed pipe, a feed pump, a raw material tank and a feed joint, the feed pipe connects the raw material tank and the feed joint, the feed pump is arranged on the feed pipe, the feed joint is arranged in the feed chamber of the stirring micro-mixer, the discharge pipe connects the discharge joint and the product collecting piece, and the discharge joint is installed on the outlet channel of the stirring micro-mixer.

Images