Liquid phase coating device

Abstract

The utility model provides a liquid phase coating device, which comprises a shell main body, a liquid phase coating device, a liquid phase coating device, a liquid phase coating device, a liquid phase coating device, a liquid phase coating device and a liquid phase coating device, the feeding assembly is connected with the side wall of the feeding pipeline and used for spraying the atomized coating material into the feeding pipeline and making the atomized coating material make contact with the surface of the to-be-coated material flowing into the feeding pipeline; the mixing assembly is arranged in the containing cavity and comprises two mixing parts capable of rotating relatively, a mixing channel is formed between the two mixing parts, and a stirring part and an extruding part are sequentially arranged on each mixing part, so that the coating material and the to-be-coated material flowing through the mixing channel are sequentially stirred, mixed and extruded; and the surface of the to-be-coated material is coated with the coating material, so that the problem that artificial graphite equipment in the prior art cannot realize continuous coating of liquid, so that the quality of an artificial graphite product is relatively low is solved.

Description

Technical Field

[0001] The utility model relates to the technical field of negative artificial graphite production, and more specifically, to a liquid-phase coating device. Background Art

[0002] Graphite-based anode materials have advantages such as high cycle efficiency, good cycle performance, rich resources, and low price, and are often used as ideal anode materials for lithium-ion batteries.

[0003] However, in the current prior art, artificial graphite equipment cannot achieve continuous coating of liquid, resulting in irregular shapes of artificial graphite powder, large specific surface area, and high degree of anisotropy, leading to poor processing performance of the material, which in turn affects the quality of artificial graphite products. Moreover, during use, it is prone to expansion, slow lithium-ion transport, and poor kinetic performance, thus resulting in poor fast-charging performance and safety performance of lithium-ion batteries. Summary of the Utility Model

[0004] The main purpose of the utility model is to provide a liquid-phase coating device to solve the problem that the artificial graphite equipment in the prior art cannot achieve continuous coating of liquid, resulting in low quality of artificial graphite products.

[0005] To achieve the above purpose, the utility model provides a liquid-phase coating device, including: a housing main body having an accommodation cavity, and a feed pipe and a discharge pipe respectively provided on the housing main body and communicating with the accommodation cavity; a feeding assembly connected to the side wall of the feed pipe for spraying atomized coating material into the feed pipe and making it contact the surface of the material to be coated flowing into the feed pipe; a mixing assembly disposed in the accommodation cavity, the mixing assembly including two relatively rotatable mixing members, a mixing channel being provided between the two mixing members, and a stirring portion and an extrusion portion being sequentially provided on the mixing members to sequentially stir and mix the coating material and the material to be coated flowing through the mixing channel and extrude them, so that the coating material is coated on the surface of the material to be coated.

[0006] Further, the liquid-phase coating device further includes: a heating member provided on the outer side wall of the housing main body for heating the coating material located in the accommodation cavity to soften it.

[0007] Further, the stirring portion is provided at one end of the mixing member close to the feed pipe, and the stirring portion is a plurality of rotating members spaced at intervals along the extending direction of the mixing member, and the plurality of rotating members on the two mixing members are respectively arranged crosswise to stir and mix the coating material and the material to be coated flowing from the feed pipe into the accommodation cavity.

[0008] Further, the extrusion part is arranged at one end of the mixing component close to the discharge pipeline. The extrusion part is a first threaded section arranged along the extension direction of the mixing component. The first threaded sections on the two mixing components are meshed and connected to each other, and there is an extrusion gap between the two first threaded sections to extrude and mix the coated material and the material to be coated flowing through the extrusion gap.

[0009] Further, the extrusion part further includes a second threaded section arranged along the extension direction of the mixing component. The length of the second threaded section protruding from the surface of the mixing component is less than the length of the first threaded section protruding from the surface of the mixing component.

[0010] Further, the distance between the two mixing components is adjustably arranged to stir and mix and extrude the materials to be coated and the coated materials with different particle sizes.

[0011] Further, the liquid-phase coating device further includes: two driving components. One ends of the two mixing components protruding from the housing body are respectively connected to the output shafts of the two driving components to drive the two mixing components to rotate synchronously.

[0012] Further, the feeding assembly includes: a mounting housing connected to the feeding pipeline; a feeding pipe and an accelerating pipe respectively arranged in the mounting housing and communicating with each other. One end of the feeding pipe with a feeding port protrudes from the mounting housing and extends into the feeding pipeline. The coated material is in the feeding pipe. The accelerating pipe is connected to the gas source assembly to introduce gas into the accelerating pipe so that the atomized coated material in the feeding pipe is sprayed into the feeding pipeline.

[0013] Further, the accelerating pipe includes two mutually connected first pipe sections and second pipe sections. The first pipe section is communicated with the feeding pipe, and a plurality of accelerating channels with different diameters are sequentially arranged in both the first pipe section and the second pipe section.

[0014] Further, the housing body includes an inner housing and an outer housing. The inner housing and the outer housing are arranged from the inside out. The accommodating cavity is arranged inside the inner housing, and the heating component is arranged on the outer side wall of the inner housing; wherein, the heating component is a coiled pipe; or, the heating component is a resistance wire.

[0015] Applying the technical solution of the present utility model, the liquid-phase coating device includes a housing main body, a feeding component, and a mixing component; the housing main body has a receiving cavity, and a feeding pipeline and a discharging pipeline communicating with the receiving cavity are respectively arranged on the housing main body; the feeding component is connected to the side wall of the feeding pipeline for spraying atomized coating materials into the feeding pipeline and making them contact the surface of the materials to be coated flowing into the feeding pipeline; the mixing component is arranged in the receiving cavity, and the mixing component includes two relatively rotatable mixing parts. There is a mixing channel between the two mixing parts, and a stirring part and an extrusion part are sequentially arranged on the mixing parts, so that the coating materials and the materials to be coated flowing through the mixing channel are stirred and mixed and extruded in sequence, and the coating materials are coated on the surface of the materials to be coated. In this way, the atomized coating materials are ejected by the feeding component to contact the materials to be coated entering from the feeding pipeline, so that the coating materials adhere to the surface of the materials to be coated. Then, the coating materials and the materials to be coated enter the mixing channel and are stirred by the stirring parts of the two mixing parts, so that multiple coating materials fully contact and adhere to the surface of the materials to be coated, and then are extruded and mixed by the extrusion parts of the two mixing parts, so that multiple materials to be coated are fully and completely coated on the surface of the materials to be coated. The overall coating rate is high and the coating effect is obvious. During the production process, through continuous feeding, continuous discharging, and continuous coating, the production capacity is improved, and the surface of the materials to be coated becomes more regular and the specific surface area of the materials to be coated is reduced. Furthermore, the problem that the existing artificial graphite equipment cannot achieve continuous liquid coating, resulting in low quality of artificial graphite products, is solved. BRIEF DESCRIPTION OF THE DRAWINGS

[0016] The schematic diagrams in the specification forming a part of this application are used to provide a further understanding of the present utility model. The schematic embodiments of the present utility model and their descriptions are used to explain the present utility model and do not constitute an improper limitation to the present utility model. In the drawings:

[0017] Figure 1 shows the overall structural schematic diagram provided by an embodiment of the liquid-phase coating device according to the present utility model;

[0018] Figure 2 shows the structural schematic diagram of the feeding component provided by an embodiment of the liquid-phase coating device according to the present utility model;

[0019] Figure 3 shows the structural schematic diagram of the first state of the coating materials and the materials to be coated provided by an embodiment of the liquid-phase coating device according to the present utility model;

[0020] Figure 4 shows the structural schematic diagram of the second state of the coating materials and the materials to be coated provided by an embodiment of the liquid-phase coating device according to the present utility model;

[0021] Figure 5 The structural schematic diagram of the stirring part provided by an embodiment of the liquid-phase coating device according to the present utility model is shown.

[0022] Among them, the above-mentioned drawings include the following reference numerals:

[0023] 10, outer shell main body; 11, accommodation cavity; 12, feed pipeline; 13, discharge pipeline; 15, inner shell; 16, outer shell; 20, feeding assembly; 21, installation shell; 22, feeding pipe; 220, feeding port; 23, acceleration pipe; 24, first pipe section; 25, second pipe section; 26, acceleration channel; 30, mixing assembly; 31, mixing part; 32, stirring part; 320, rotating part; 3201, flanging part; 33, extrusion part; 330, first thread section; 331, second thread section; 40, heating part; 50, driving part; 100, coating material; 200, material to be coated. Specific embodiments

[0024] It should be noted that, without conflict, the embodiments in the present application and the features in the embodiments can be combined with each other. The present utility model will be described in detail below with reference to the drawings and in combination with the embodiments.

[0025] In order to solve the problem that the existing artificial graphite equipment cannot achieve continuous liquid coating, resulting in low quality of artificial graphite products, the present utility model provides a liquid-phase coating device.

[0026] Please refer to Figures 1 to 5 As shown, applying the technical solution of the present utility model, the liquid-phase coating device includes an outer shell main body 10, a feeding assembly 20 and a mixing assembly 30; the outer shell main body 10 has an accommodation cavity 11, and the outer shell main body 10 is respectively provided with a feed pipeline 12 and a discharge pipeline 13 communicated with the accommodation cavity 11; the feeding assembly 20 is connected to the side wall of the feed pipeline 12 to spray the atomized coating material 100 into the feed pipeline 12 and make it contact with the surface of the material 200 to be coated flowing into the feed pipeline 12; the mixing assembly 30 is arranged in the accommodation cavity 11, the mixing assembly 30 includes two relatively rotatable mixing parts 31, there is a mixing channel between the two mixing parts 31, and the mixing parts 31 are sequentially provided with a stirring part 32 and an extrusion part 33, so that the coating material 100 and the material 200 to be coated flowing through the mixing channel are stirred and mixed and extruded in sequence, and the coating material 100 is coated on the surface of the material 200 to be coated.

[0027] Applying the technical solution of this embodiment, the atomized coating material 100 is ejected through the feeding component 20 to contact the material 200 to be coated entering from the feeding pipeline 12, so that the coating material 100 adheres to the surface of the material 200 to be coated. Then, the coating material 100 and the material 200 to be coated enter the mixing channel and are stirred by the stirring part 32 of the two mixing components 31, so that multiple coating materials 100 are fully in contact with and adhere to the surface of the material 200 to be coated. Then, they are extruded and mixed by the extrusion part 33 of the two mixing components 31, so that multiple materials 200 to be coated are fully and completely coated on the surface of the material 200 to be coated. The overall coating rate is high and the coating effect is obvious. Moreover, during the production process, through continuous feeding, continuous discharging, and continuous coating, the production capacity is improved, the surface of the material 200 to be coated becomes more regular, and the specific surface area of the material 200 to be coated is reduced. Thus, the problem in the prior art that the artificial graphite equipment cannot achieve continuous coating of liquids, resulting in low quality of artificial graphite products, is solved.

[0028] In this embodiment, the material 200 to be coated is a graphite material, and the coating material 100 is an asphalt-based liquid carbon material.

[0029] Specifically, the liquid-phase coating device further includes a heating component 40, which is arranged on the outer side wall of the housing main body 10 to heat the coating material 100 located in the accommodation cavity 11 to soften it. In this way, after the atomized coating material 100 ejected through the feeding component 20 contacts the material 200 to be coated entering from the feeding pipeline 12 and adheres to the surface of the material 200 to be coated, the coating material 100 and the material 200 to be coated enter the mixing channel and are stirred by the stirring part 32 of the two mixing components 31. At the same time, the heating component 40 heats the coating material, which is an asphalt-based liquid carbon material, so that the liquid with a certain heating effect can better coat the outer surface of the material 200 to be coated, improving the coating effect.

[0030] Such as Figure 1 and Figure 5As shown in the figure, the stirring part 32 is arranged at one end of the mixing part 31 close to the feeding pipe 12. The stirring part 32 is a plurality of rotating parts 320 arranged at intervals along the extending direction of the mixing part 31. The plurality of rotating parts 320 on the two mixing parts 31 are arranged crosswise respectively to stir and mix the coating material 100 and the material to be coated 200 flowing into the accommodating cavity 11 from the feeding pipe 12. With the above arrangement, the rotating part 320 is a wind blade, and the end of each blade of the wind blade has a flanging part 3201, and the flanging part 3201 has a certain bevel angle. In this way, when the two mixing parts 31 rotate to drive the plurality of rotating parts 320 to perform a synchronous reverse movement of 2 m / s to stir and mix the coating material 100 and the material to be coated 200, the coating material 100 can be scooped up and form a certain mixing effect with the material to be coated 200. At the same time, the heating part 40 preheats the coating material 100 to about 100 °C for preliminary heating, so that it has a certain preliminary coating effect, and the eddy current formed by the double rotation drives the coating material 100 to uniformly contact the material to be coated 200, and makes the plurality of coating materials 100 and the material to be coated 200 mix and coat more uniformly under the heating effect of the heating part 40.

[0031] Specifically, the extrusion part 33 is arranged at one end of the mixing part 31 close to the discharging pipe 13. The extrusion part 33 is a first thread section 330 arranged along the extending direction of the mixing part 31. The first thread sections 330 on the two mixing parts 31 are meshed and connected with each other, and there is an extrusion gap between the two first thread sections 330 to extrude and mix the coating material 100 and the material to be coated 200 flowing through the extrusion gap.

[0032] Specifically, the extrusion part 33 further includes a second thread section 331 arranged along the extending direction of the mixing part 31. The length of the second thread section 331 protruding from the surface of the mixing part 31 is less than the length of the first thread section 330 protruding from the surface of the mixing part 31.

[0033] It can be seen that the first thread sections 330 on the two mixing parts 31 are meshed with each other. Among them, the two second thread sections 331 play a role in scooping up the coating material 100 and the material to be coated 200 to prevent them from adhering to the mixing part 31. Furthermore, the heating part 40 heats the coating material 100 to 260 °C - 400 °C, so that the coating material 100 which is a soft carbon material is softened. At the same time, the two mixing parts 31 moving in opposite directions drive the two meshed first thread sections 330 to rotate, generating extrusion force and enabling the coating material 100 which is a soft carbon material to better coat the surface of the material to be coated 200, so that a soft carbon structure can be formed on the surface of the graphite matrix material (such as Figure 4As shown, it greatly improves the cycling performance of the material, increases the capacity of the material, reduces the specific surface area of the material, and is 10 times the production capacity of traditional equipment.

[0034] Optionally, the distance between the two mixing components 31 is adjustably set for stirring and mixing and extruding the material 200 to be coated and the coating material 100 with different particle sizes. In this way, the coating operation can be carried out on different material particle sizes according to the use requirements and actual working conditions.

[0035] Specifically, the liquid-phase coating device further includes two driving components 50. One end of the two mixing components 31 extending out of the housing body 10 is respectively connected to the output shafts of the two driving components 50 to drive the two mixing components 31 to rotate synchronously. In this way, the two driving components 50 are respectively used to drive the two mixing components 31 to rotate synchronously.

[0036] In this embodiment, the driving component 50 is a driving motor.

[0037] As Figure 2 shown, the feeding assembly 20 includes a mounting housing 21, a feeding pipe 22 and an accelerating pipe 23; the mounting housing 21 is connected to the feeding pipeline 12; the feeding pipe 22 and the accelerating pipe 23 are respectively arranged in the mounting housing 21 and communicate with each other. One end of the feeding pipe 22 with a feeding port 220 extends out of the mounting housing 21 and extends into the feeding pipeline 12. The feeding pipe 22 contains the coating material 100. The accelerating pipe 23 is connected to the gas source assembly for introducing gas into the accelerating pipe 23 to spray the atomized coating material 100 in the feeding pipe 22 into the feeding pipeline 12. With the above settings, the feeding pipeline 12 is connected with a feeding port, and the feeding port is of a conical structure. In this way, when the material 200 to be coated is added from the feeding port and falls into the feeding pipeline 12 by gravity, the gas source assembly passes 0.7 MPa of compressed air through the accelerating pipe 23 to the feeding pipe 22, so that the coating material 100 in the feeding pipe 22 can form uniform atomization and is injected from the feeding port 220 of the feeding pipe 22 onto the surface of the material 200 to be coated falling into the feeding pipeline 12 at a speed of 1.5 m / s, so that the coating material 100 and the material 200 to be coated are preliminarily mixed; and, inside the feeding assembly 20, there are materials with heating effects such as heat-conducting oil and water to heat the coating material 100 to soften it so that it can be atomized and sprayed out to contact the material 200 to be coated for preliminary mixing.

[0038] Specifically, the acceleration tube 23 includes two interconnected first tube segments 24 and second tube segments 25. The first tube segment 24 is connected to the feeding tube 22. Multiple acceleration channels 26 with different diameters arranged in sequence are provided in both the first tube segment 24 and the second tube segment 25. In this way, the compressed air is accelerated by the first tube segment 24 and the second tube segment 25 with two acceleration channels 26 of different diameters, so that the compressed air forms a certain speed after passing through the two acceleration tubes 23 to uniformly atomize the coated material 100, facilitating the contact and mixing of the atomized coated material 100 with the material to be coated 200.

[0039] In this embodiment, the outer shell main body 10 includes an inner shell 15 and an outer shell 16. The inner shell 15 and the outer shell 16 are arranged from the inside out. The accommodation cavity 11 is arranged inside the inner shell 15, and the heating component 40 is arranged on the outer side wall of the inner shell 15. With the above arrangement, both the inner shell 15 and the outer shell 16 can be made of metal materials such as carbon steel, 310S stainless steel, and SUS304 stainless steel that can withstand temperatures exceeding 400 °C, so that the heating component 40 can heat the coated material 100 located inside the inner shell 15 to soften it.

[0040] Optionally, the heating component 40 is a coil tube, and in this case, the heating component 40 is wound around the outer side wall of the inner shell 15. Or the heating component 40 is a resistance wire, and in this case, multiple heating components 40 are respectively laid on the outer side wall of the inner shell 15.

[0041] In this application, Example 1 of the preparation method formed by using the liquid-phase coating device includes:

[0042] S1: Graphitize the first raw material, coke powder, to obtain an intermediate product (material to be coated 200);

[0043] S2: Soften the second raw material (coated material 100) through a liquid adding device;

[0044] S3: Perform liquid-phase coating on the intermediate product and the second raw material in the liquid-phase coating device so that the second raw material can be uniformly coated on the surface of the intermediate product to obtain a composite precursor;

[0045] S4: Carbonize the composite precursor at 900 - 1400 °C under the protection of a protective gas to obtain the final negative electrode graphite material.

[0046] After performing processes such as coating, rolling, cutting, and winding on the artificial negative electrode graphite material prepared in the above Example 1, the production of a soft-pack battery cell (a battery cell refers to a lithium-ion battery without a protection circuit board) is completed. The physical properties of its materials and the electrochemical performance of the battery cell are tested (the capacity of the battery cell is 2.0 Ah), and a comparison is made with the original process. The results are shown in the following table.

[0047]

[0048] From the above description, it can be seen that the above embodiments of the present utility model achieve the following technical effects:

[0049] The liquid-phase coating device includes a housing main body, a feeding assembly, and a mixing assembly; the housing main body has a receiving cavity, and a feeding pipeline and a discharging pipeline communicating with the receiving cavity are respectively arranged on the housing main body; the feeding assembly is connected to the side wall of the feeding pipeline to spray atomized coating materials into the feeding pipeline and make them contact the surface of the materials to be coated flowing into the feeding pipeline; the mixing assembly is arranged in the receiving cavity, and the mixing assembly includes two relatively rotatable mixing parts. There is a mixing channel between the two mixing parts. Stirring parts and extrusion parts are sequentially arranged on the mixing parts to sequentially stir and mix the coating materials and the materials to be coated flowing through the mixing channel and extrude them, so that the coating materials are coated on the surface of the materials to be coated. In this way, the atomized coating materials are sprayed by the feeding assembly to contact the materials to be coated entering from the feeding pipeline, so that the coating materials adhere to the surface of the materials to be coated. Then, the coating materials and the materials to be coated enter the mixing channel and are stirred by the stirring parts of the two mixing parts, so that multiple coating materials fully contact and adhere to the surface of the materials to be coated, and then are extruded and mixed by the extrusion parts of the two mixing parts, so that multiple materials to be coated are fully and completely coated on the surface of the materials to be coated. The overall coating rate is high and the coating effect is obvious. During the production process, through continuous feeding, continuous discharging, and continuous coating, the production capacity is improved, the surface of the materials to be coated becomes more regular, and the specific surface area of the materials to be coated is reduced. Furthermore, the problem that the prior art artificial graphite equipment cannot achieve continuous liquid coating, resulting in low quality of artificial graphite products, is solved.

[0050] It should be noted that the terms used herein are only for describing specific embodiments and are not intended to limit the exemplary embodiments according to the present application. As used herein, unless the context clearly indicates otherwise, the singular form is also intended to include the plural form. In addition, it should be understood that when the terms "comprise" and / or "include" are used in this specification, they indicate the presence of features, steps, operations, devices, components, and / or combinations thereof.

[0051] Unless otherwise specifically stated, the relative arrangements, numerical expressions, and numerical values of the components and steps set forth in these embodiments do not limit the scope of the present invention. At the same time, it should be understood that, for the sake of convenience in description, the dimensions of the various parts shown in the drawings are not drawn in actual proportional relationships. Technologies, methods, and devices known to those of ordinary skill in the relevant art may not be discussed in detail, but where appropriate, the said technologies, methods, and devices should be regarded as part of the authorization specification. In all the examples shown and discussed here, any specific value should be construed as merely exemplary and not as a limitation. Therefore, other examples of the exemplary embodiments may have different values. It should be noted that like reference numerals and letters denote like items in the following drawings, and thus, once an item is defined in one drawing, further discussion thereof is not required in subsequent drawings.

[0052] In the description of the present invention, it should be understood that the orientation or positional relationships indicated by orientation terms such as "front, rear, upper, lower, left, right", "lateral, vertical, perpendicular, horizontal", and "top, bottom", etc. are generally based on the orientation or positional relationships shown in the drawings, and are only for the convenience of describing the present invention and simplifying the description. Without contrary description, these orientation terms do not indicate and imply that the device or element referred to must have a specific orientation or be constructed and operated in a specific orientation, and thus should not be construed as limiting the protection scope of the present invention; the orientation terms "inner, outer" refer to the inside and outside relative to the contour of each component itself.

[0053] For the sake of convenience in description, spatial relative terms such as "above...", "over...", "on the upper surface of...", "above", etc. may be used here to describe the spatial positional relationships between a device or feature shown in the drawings and other devices or features. It should be understood that the spatial relative terms are intended to encompass different orientations in use or operation in addition to the orientation depicted in the drawings. For example, if the device in the drawing is inverted, the device described as "above other devices or structures" or "over other devices or structures" will then be positioned "below other devices or structures" or "under other devices or structures". Thus, the exemplary term "above..." can include both the orientations of "above..." and "below...". The device may also be positioned in other different ways (rotated 90 degrees or in other orientations), and corresponding interpretations should be made for the spatial relative descriptions used here.

[0054] The foregoing is only the preferred embodiment of the present invention and is not used to limit the present invention. For those skilled in the art, the present invention may have various modifications and variations. Any modification, equivalent replacement, improvement, etc. made within the spirit and principle of the present invention shall be included within the protection scope of the present invention.

Claims

1. A liquid-phase coating device, characterized in that, Comprising: A housing main body (10) having an accommodation cavity (11), and a feed pipe (12) and a discharge pipe (13) communicating with the accommodation cavity (11) are respectively provided on the housing main body (10); A feeding assembly (20) connected to the side wall of the feed pipe (12) for spraying atomized coating material (100) into the feed pipe (12) and bringing it into contact with the surface of the material to be coated (200) flowing into the feed pipe (12); A mixing assembly (30) disposed in the accommodation cavity (11), the mixing assembly (30) includes two relatively rotatable mixing members (31), a mixing channel is provided between the two mixing members (31), and a stirring portion (32) and an extrusion portion (33) are sequentially provided on the mixing member (31) to sequentially stir and mix and extrude the coating material (100) and the material to be coated (200) flowing through the mixing channel, and make the coating material (100) coat on the surface of the material to be coated (200).

2. The liquid-phase coating device according to claim 1, wherein The liquid-phase coating device further includes: A heating member (40) disposed on the outer side wall of the housing main body (10) for heating the coating material (100) located in the accommodation cavity (11) to soften it.

3. The liquid-phase coating device according to claim 1, wherein The stirring portion (32) is disposed at one end of the mixing member (31) close to the feed pipe (12), and the stirring portion (32) is a plurality of rotating members (320) spaced along the extending direction of the mixing member (31), and the plurality of rotating members (320) on the two mixing members (31) are respectively arranged crosswise to stir and mix the coating material (100) and the material to be coated (200) flowing from the feed pipe (12) into the accommodation cavity (11).

4. The liquid-phase coating device according to claim 1, characterized in that, The extrusion portion (33) is disposed at one end of the mixing member (31) close to the discharge pipe (13), and the extrusion portion (33) includes a first thread segment (330) arranged along the extending direction of the mixing member (31), the first thread segments (330) on the two mixing members (31) are meshed and connected to each other and there is an extrusion gap between the two first thread segments (330) to extrude and mix the coating material (100) and the material to be coated (200) flowing through the extrusion gap.

5. The liquid-phase coating device according to claim 4, wherein, The extrusion portion (33) further includes a second thread segment (331) arranged along the extending direction of the mixing member (31), and the length of the second thread segment (331) protruding from the surface of the mixing member (31) is less than the length of the first thread segment (330) protruding from the surface of the mixing member (31).

6. The liquid-phase coating device according to claim 1, characterized in that, The distance between the two mixing members (31) is adjustable to stir, mix and extrude the materials to be coated (200) and coating materials (100) with different particle sizes.

7. The liquid phase coating device according to claim 1, wherein The liquid-phase coating device further includes: Two driving components (50), one end of each of the two mixing components (31) extending out of the housing main body (10) is respectively connected to the output shafts of the two driving components (50) to drive the two mixing components (31) to rotate synchronously.

8. The liquid-phase coating device according to claim 1, wherein, The feeding assembly (20) includes: A mounting housing (21) connected to the feeding pipeline (12); A feeding pipe (22) and an accelerating pipe (23) respectively arranged in the mounting housing (21) and communicating with each other. One end of the feeding pipe (22) having a feeding port (220) extends out of the mounting housing (21) and extends into the feeding pipeline (12). The coated material (100) is in the feeding pipe (22). The accelerating pipe (23) is connected to the gas source assembly to introduce gas into the accelerating pipe (23) so that the atomized coated material (100) in the feeding pipe (22) is sprayed into the feeding pipeline (12).

9. The liquid-phase coating device according to claim 8, characterized in that, The accelerating pipe (23) includes two mutually communicating first pipe sections (24) and second pipe sections (25). The first pipe section (24) communicates with the feeding pipe (22). Multiple accelerating channels (26) with different diameters arranged in sequence are provided in both the first pipe section (24) and the second pipe section (25).

10. The liquid-phase coating device according to claim 2, wherein The housing main body (10) includes an inner housing (15) and an outer housing (16). The inner housing (15) and the outer housing (16) are arranged from the inside to the outside. The accommodating cavity (11) is arranged in the inner housing (15). The heating component (40) is arranged on the outer side wall of the inner housing (15); wherein, The heating component (40) is a coil; or, The heating component (40) is a resistance wire.

Images