Apparatus and equipment used for solid-liquid mixing and dispersion

Abstract

An apparatus and a facility for mixing and dispersing solid and liquid are provided. The apparatus includes a powder grinding mechanism fixedly connected to a main shaft, the powder grinding mechanism being provided in a powder supply chamber, and the powder supply chamber having a powder supply port. A liquid supply chamber is provided outside the powder supply chamber, the liquid supply chamber having a liquid supply port, and a dispersion mechanism fixedly connected to the main shaft is provided in the liquid supply chamber. The lower part of the liquid supply chamber and the lower part of the powder supply chamber are respectively connected to the upper part of the mixing chamber, the mixing chamber is provided with an impeller fixedly connected to the main shaft, and a tangential discharge port is provided in the lower part of the mixing chamber. The slurry is transported to the liquid supply chamber by a pump, dispersed by the dispersion mechanism, and then enters the mixing chamber in which the impeller is provided. In this apparatus, the slurry can fill the liquid supply chamber, and the problem of low slurry filling rate and insufficient dispersion effect caused by providing the dispersion mechanism in a slurry discharge area below the impeller is avoided.

Description

Technical Field

[0001] Cross - reference to related applications This application claims the priority of Chinese Patent Application No. 202111117446.9, filed on September 23, 2021, with the invention title "Apparatus and Equipment for Solid - Liquid Mixing and Dispersion", and all of its contents are incorporated herein by reference.

[0002] This application relates to the field of mixing and dispersion of powders and liquids, and in particular, to apparatus and equipment for solid - liquid mixing and dispersion.

Background Art

[0003] In fields such as battery manufacturing, food, and pharmaceuticals, it is often necessary to mix a large amount of powder particles and a small amount of liquid to form a homogeneous and highly viscous solid - liquid mixture. A circulating mixing and dispersion apparatus can be used to efficiently prepare the solid - liquid mixture. Until a solid - liquid mixture that meets the requirements is obtained, the liquid is reciprocally circulated between the circulating mixing and dispersion apparatus and the buffer tank, the powder is gradually introduced into the circulating mixing and dispersion apparatus, mixed with the liquid, the resulting slurry continues to circulate within the system, and is dispersed when passing through the circulating mixing and dispersion apparatus. The technical solutions in the conventional circulating mixing and dispersion apparatus are as follows.

[0004] Chinese Utility Model Patent No. 207667471 (CN207667471U, hereinafter referred to as the "71U Patent") discloses a solid-liquid mixing equipment suitable for high-viscosity materials. Specifically, it is disclosed that powder and liquid are mixed and dispersed by a dispersion wheel and discharged by a twin-screw pump connected to the outlet. In this design, the discharge speed needs to be adjusted according to the supply speeds of the liquid and the powder. If the discharge speed is too fast, the flow will be interrupted indoors, the filling rate of the slurry will be low, and the mixing and dispersion effects will be affected. Conversely, if the discharge speed is too slow, the slurry will return to the powder passage and cause blockage, making the equipment unable to operate normally. During actual operation, it is difficult to balance the discharge speed and the supply speed, so the equipment can only be operated in a state of relatively fast discharge speed and relatively low chamber filling rate to prevent the return and blockage of the slurry. In this way, the mixing and dispersion effects will be reduced.

[0005] Chinese Utility Model Patent No. 209155625 (CN209155625U, hereinafter referred to as the "25U Patent") discloses a solid-liquid mixing equipment. Chinese Patent Application Publication No. 110394082 (CN110394082A, hereinafter referred to as the "82A Patent") discloses an impeller assembly and a solid-liquid mixing device using the impeller assembly. In the above two types of powder-liquid mixing and dispersion devices, the powder and the liquid are mixed and dispersed by a frustum-shaped impeller and discharged by centrifugal force at the lower part of the impeller, and there is no need to provide a separate discharge pump. The main dispersion regions of these two types of devices are both located in the part at the lower part of the impeller, close to the discharge port and having a relatively large diameter. The discharge capacity of these devices is determined by the rotation speed of the impeller, and at the same time, the dispersion intensity is determined by the rotation speed of the impeller. Usually, in order to achieve a certain dispersion intensity, it is necessary to operate the impeller at a predetermined rotation speed, but this rotation speed cannot be at the balance point of balancing the discharge speed and the supply speed. The equipment can only be operated in a state of relatively fast discharge speed and relatively low chamber filling rate to prevent the return and blockage of the slurry. In this way, the mixing and dispersion effects will be reduced.

[0006] In the circulating type mixing and dispersing devices in the related art, there are problems such as the return of slurry due to the mismatch between the discharge speed and the supply speed or the low filling rate in the dispersion area. As a result, the production capacity cannot reach the maximum, and the productivity of the equipment cannot be maximized.

[0007] Therefore, in the field of mixing and dispersing powders and liquids, there is a need for devices and equipment for solid-liquid mixing and dispersing that have a high slurry filling rate, provide a sufficient dispersion effect, and can fully utilize the production capacity of the equipment.

Summary of the Invention

[0008] From this perspective, the present application aims to provide devices and equipment for solid-liquid mixing and dispersing that have a high slurry filling rate, provide a sufficient dispersion effect, and can fully utilize the production capacity of the equipment. To achieve this objective, the present application takes the following technical solutions.

[0009] In a first aspect, a device for solid-liquid mixing and dispersing is provided. This device includes a powder pulverizing mechanism fixedly connected to the main shaft. The powder pulverizing mechanism is provided in a powder supply chamber, and the powder supply chamber has a powder supply port. Outside the powder supply chamber, a liquid supply chamber is provided. The liquid supply chamber has a liquid supply port, and in the liquid supply chamber, a dispersion mechanism fixedly connected to the main shaft is provided. The lower part of the liquid supply chamber and the lower part of the powder supply chamber communicate with the upper part of a mixing chamber respectively. In the mixing chamber, an impeller fixedly connected to the main shaft is provided, and a tangential discharge port is provided at the lower part of the mixing chamber.

[0010] In a possible embodiment, the liquid supply chamber is provided so as to surround the powder supply chamber, and the liquid supply chamber is annular.

[0011] In a possible embodiment, the powder pulverizing mechanism includes multiple layers of blades. With this arrangement, it is ensured that the powder is pulverized into a powdery state during the process of falling to the bottom of the powder supply chamber.

[0012] In a possible embodiment, the dispersion mechanism is a cylindrical dispersion wheel.

[0013] In a possible embodiment, the dispersion mechanism includes a plurality of stirring blades distributed in the circumferential direction.

[0014] In a possible embodiment, the dispersion wheel is provided with holes. By providing in this way, it is advantageous for the mixing of the slurry and a good dispersion effect can be obtained.

[0015] In a possible embodiment, the gap between the dispersion wheel and the inner wall of the liquid supply chamber, and the gap between the dispersion wheel and the outer wall of the liquid supply chamber are both 0.5 mm to 10 mm. Furthermore, the gap between the dispersion wheel and the inner wall of the liquid supply chamber, and the gap between the dispersion wheel and the outer wall of the liquid supply chamber are both 1 mm to 5 mm.

[0016] In a possible embodiment, the gap between the stirring blade and the inner wall of the liquid supply chamber, and the gap between the stirring blade and the outer wall of the liquid supply chamber are both 0.5 mm to 10 mm. Furthermore, the gap between the stirring blade and the inner wall of the liquid supply chamber, and the gap between the stirring blade and the outer wall of the liquid supply chamber are both 1 mm to 5 mm.

[0017] The slurry is sheared by the dispersion mechanism in a narrow liquid supply chamber, the shear strength becomes higher, and the slurry fills the liquid supply chamber, so that a sufficient residence time can be obtained and the slurry can be sufficiently dispersed.

[0018] In a possible embodiment, a slurry dispersion and discharge mechanism for dispersing and discharging the slurry is provided in the slurry discharge region at the lower part of the mixing chamber.

[0019] In a second aspect, equipment for solid-liquid mixing and dispersion is provided. This equipment includes the device described in the first aspect. The lower part of the device is connected to a sealing device, and a bearing and a motor are provided at the lower part of the device.

[0020] In this application, the slurry is transported by a pump from the slurry buffer tank to the liquid supply chamber of the device, dispersed by a dispersion mechanism, and then enters the mixing chamber provided with an impeller. After the slurry enters the liquid supply chamber, it is moved by the dispersion mechanism and begins to rotate. Also, since the dispersion mechanism, the powder pulverization mechanism, and the impeller are all connected to the main shaft, the rotation speeds of the three are the same. Thus, after the slurry enters the mixing chamber, it maintains rotation and forms a rotating downward-flowing liquid ring. The liquid ring is an annular liquid formed by the downward flow of the liquid. Also, since the relative speed when the slurry contacts the impeller is low, the slurry is less likely to splash. Also, the powder is pulverized into a powder state in the powder supply chamber and rotates together with the powder pulverization mechanism. Since the lower part of the powder supply chamber communicates with the mixing chamber, the powder near the mixing chamber is sucked into the mixing chamber by the slurry rotating and flowing downward in the mixing chamber and mixed. After the slurry is homogeneously mixed with the powder in the mixing chamber, it is discharged into the slurry buffer tank. Since the device used for the solid-liquid mixing and dispersion in this application is a circulating mixing and dispersion facility, the slurry reciprocally circulates between the slurry buffer tank and the circulating mixing and dispersion facility until it is sufficiently dispersed. In the process of dispersing the slurry, since the slurry is pushed by the supply of new slurry and leaves the liquid supply chamber, the liquid supply chamber can be filled with the slurry, and the problem of low filling rate of the slurry and insufficient dispersion effect caused by providing the dispersion mechanism in the slurry discharge region at the lower part of the mixing chamber is avoided.

Brief Description of the Drawings

[0021]

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Embodiments for Carrying Out the Invention

[0022] In order to more clearly illustrate the object, principle, technical solution and advantages of the invention, the present application will be further described in detail below with reference to the drawings and embodiments. As described in the present application, it is understood that the specific embodiments described herein are used for the description of the present application and do not limit the present application.

[0023] It should be noted that the orientation or positional relationship described in the description of the present application is the orientation or positional relationship shown based on the drawings. For the sake of simplifying the drawings, some of the connection or positional relationships that can be determined from the description of the specification or the technical content are omitted, or not all the positional change diagrams are drawn. In this specification, the positional change diagrams that are not explicitly stated, omitted, or not drawn are not considered to have no explanation. For the sake of simplifying the explanation, when specifically described, they are not explained one by one here, but are explained collectively here.

[0024] As shown in FIG. 1, the present application provides an apparatus 20 for use in the mixed dispersion of solids and liquids. The apparatus 20 includes a powder pulverizing mechanism 206 fixedly connected to a main shaft 21. The powder pulverizing mechanism 206 is provided in a powder supply chamber 205, and the powder supply chamber 205 has a powder supply port. A liquid supply chamber 201 is provided outside the powder supply chamber 205, and the liquid supply chamber 201 has a liquid supply port 200. Inside the liquid supply chamber 201, a dispersion mechanism 202 fixedly connected to the main shaft 21 is provided. The lower part of the liquid supply chamber 201 and the lower part of the powder supply chamber 205 communicate with the upper part of the mixing chamber respectively. An impeller 207 fixedly connected to the main shaft 21 is provided in the mixing chamber, and a tangential discharge port 208 shown in FIG. 2 is provided at the lower part of the mixing chamber. The description of the outside of the powder supply chamber 205 means that the liquid supply chamber 201 and the powder supply chamber 205 are two independent containers. In other words, when the powder and the liquid enter the equipment of the present application, they need to enter their respective supply chambers separately, undergo pretreatment, and then be mixed. This pretreatment includes, but is not limited to, further dispersing the powder or slurry. In addition, the tangential discharge port 208 is a discharge passage formed by extending outward along the inner wall of the lower part of the mixing chamber in the mixing chamber. A cooling water intermediate layer 203 is further provided outside the liquid supply chamber 201. The cooling water intermediate layer 203 is used to add cooling water to cool the slurry in the liquid supply chamber 201. A heat insulation layer 204 is provided outside the cooling water intermediate layer 203. By the heat insulation layer 204, the cooling water in the cooling water intermediate layer 203 is maintained within a predetermined temperature range.

[0025] In the apparatus 20 of the present application, the powder enters the supply chamber from the powder supply port, is pulverized into powder by the powder pulverizing mechanism 206, and rotates together with the powder pulverizing mechanism 206. Since the lower part of the powder supply chamber 205 communicates with the mixing chamber, the powder near the mixing chamber is sucked into the mixing chamber by the slurry that rotates and flows downward in the mixing chamber and is mixed with the slurry. Further, since the powder pulverizing mechanism 206 includes multiple layers of blades and can sufficiently pulverize the powder into powder, it is advantageous for the rotating and downward-flowing slurry to suck the powder into the mixing chamber. Further, the liquid supply chamber 201 is provided so as to surround the powder supply chamber 205, and the liquid supply chamber 201 is annular (shown in FIG. 2). With this arrangement, since the cross-section of the liquid supply chamber 201 is narrow, the slurry flows quickly, and combined with the shearing action on the slurry by the dispersion mechanism 202, a homogeneously mixed slurry is likely to be formed. After the slurry is supplied from the liquid supply chamber 201, it enters the mixing chamber and is then moved by the impeller 207 to form a rotating and downward-flowing liquid ring. Since the powder pulverizing mechanism 206, the dispersion mechanism 202, and the impeller 207 are all fixedly connected to the main shaft 21, the rotation speeds of the three are the same, that is, the rotation speed of the powder and the rotation speed of the slurry when entering the mixing chamber are substantially the same. Therefore, the relative speed when the slurry contacts the impeller 207 is low, and the slurry is less likely to splash. Therefore, after the powdered powder is sucked into the mixing chamber, it is likely to be homogeneously mixed. Further, the dispersion mechanism 202 may be a cylindrical dispersion wheel 2020 (shown in FIGS. 3 and 4) and may include a plurality of stirring blades 2022 distributed in the circumferential direction. Specifically, the stirring blades 2022 are uniformly distributed in the circumferential direction and may be blades or cylindrical (shown in FIG. 7).

[0026] The slurry is transported by a pump from the slurry buffer tank to the liquid supply chamber 201 of the device 20, dispersed by the dispersion mechanism 202, then enters the mixing chamber provided with the impeller 207, is uniformly mixed with the powder in this mixing chamber, and then is discharged into the slurry buffer tank. Before reaching the discharge standard, the slurry reciprocally circulates between the slurry buffer tank and the circulating mixing and dispersing equipment. The slurry enters the liquid supply chamber 201 from the liquid supply port 200, is dispersed by the dispersion mechanism 202, then enters the upper part of the mixing chamber, and the impeller 207 forms a liquid ring that rotates on the wall surface of the mixing chamber and flows downward. In accordance with the dispersion wheel 2020 or the stirring blade 2022 of the dispersion mechanism 202 for reinforcing dispersion, the slurry is already uniformly dispersed before entering the mixing chamber. By sucking the powdery powder into the slurry and mixing them in the mixing chamber, it is difficult to form lumps that are difficult to disperse, which is advantageous for forming a homogeneous slurry. As can be understood, if the powder is directly injected into the mixing chamber in a lump form, or the slurry is added to the chamber containing the powder, in either case, lumps that are difficult to disperse are likely to occur. This is because if the deposited powder and the slurry are directly mixed, even if stirred by the impeller 207 at the same time, large lumps can still be formed. Moreover, the central part of the lump is difficult to be wetted by the slurry, and since the powder and the slurry are mixed and form a tight outer surface, it is difficult to be dispersed again after the lump is formed. Based on this application, it is possible to prevent the occurrence of lumps that are difficult to disperse when the powder is directly injected into the mixing chamber in a lump form or the slurry is added to the chamber containing the powder, avoid the formation of large lumps, and at the same time avoid the difficulty of redispersion after the lumps are formed. In this application, the powder is sucked into the mixing chamber by the rotating and downward-flowing slurry and mixed, avoiding the formation of tight lumps before the two are further dispersed as described above. Based on this application, a more homogeneous mixed liquid can be prepared, lumps are less likely to occur, the time required for the dispersion process is not long, and the productivity can be improved.

[0027] In the prior art, for example, in the 71U patent, the mixed slurry is discharged by a twin-screw pump connected to the outlet. However, in such a design, it is difficult to adjust the discharge speed to match the supply speeds of the liquid and powder. Therefore, problems are likely to occur where the discharge speed is too fast, causing the flow to be interrupted, the filling rate of the slurry to be low, and affecting the mixing and dispersion effects. Or, if the discharge speed is too slow, the slurry may return to the chamber where the previous process is carried out, easily leading to problems such as clogging and equipment damage. Obviously, the impact on production and manufacturing in the latter case is more unacceptable. Therefore, during actual operation, it is difficult for the equipment of the 71U patent to solve the problem of low filling rate of the slurry and the impact on the mixing and dispersion effects. In addition, in the 25U patent and 82A patent, the powder and liquid are mixed and dispersed by a frustum-shaped impeller, and then discharged by centrifugal force at the lower part of the impeller, eliminating the need for a separate discharge pump as in the 71U patent. The main dispersion area of the devices in the 25U patent and 82A patent is located in the part at the lower part of the impeller, close to the discharge port and having a relatively large diameter. The discharge capacity of these devices is determined by the rotation speed of the impeller, and at the same time, the dispersion intensity is determined by the rotation speed of the impeller. Usually, in order to achieve a certain degree of dispersion intensity, it is necessary to operate the impeller at a predetermined rotation speed, but this rotation speed cannot be at the balance point of matching the discharge speed and the supply speed. The equipment can only be operated in a state of relatively fast discharge speed and relatively low chamber filling rate to prevent the occurrence of slurry return and clogging phenomena. This will reduce the mixing and dispersion effects. In the present application, the slurry is propelled into the mixing chamber by the supply of new slurry in the liquid supply chamber, so that the liquid supply chamber can be filled, the dispersion effect becomes more sufficient, and the working efficiency can also be improved.

[0028] When the dispersion wheel 2020 rotates at high speed, the dispersion wheel 2020 exerts a strong shearing action on the slurry in the gap, achieving a good dispersion effect. In another embodiment, as shown in FIGS. 1, 2, and 3, holes 2021 are formed in the dispersion wheel 2020. In another embodiment, grooves are provided in the dispersion wheel 2020, or knurls or slots are provided on the surface of the dispersion wheel 2020. All of them can promote the flow of the slurry and strengthen the dispersion effect. It is understood that the above embodiments that promote the flow of the slurry and strengthen the shearing action can be used in combination. It is not limited to adopting only one of the embodiments.

[0029] In another embodiment, the gaps between the dispersion wheel 2020 and the inner wall of the liquid supply chamber 201, and between the dispersion wheel 2020 and the outer wall of the liquid supply chamber 201 are both 0.5 mm to 10 mm. Further, the gaps between the dispersion wheel 2020 and the inner wall of the liquid supply chamber 201, and between the dispersion wheel 2020 and the outer wall of the liquid supply chamber 201 are both 1 mm to 5 mm. The inner wall refers to the wall of the liquid supply chamber 201 close to the powder supply chamber 205, and the outer wall refers to the wall of the liquid supply chamber 201 close to the cooling water intermediate layer 203. The gaps between the dispersion wheel 2020 and the inner and outer walls of the liquid supply chamber 201 mainly affect the shear rate. The smaller the gap, the higher the shear rate, but if the gap is too small, there is a possibility of scraping the wall. Usually, the gaps between the dispersion wheel 2020 and the inner and outer walls are the same, but the dimensional ranges can be arbitrarily combined. For example, the gap between the dispersion wheel 2020 and the inner wall of the liquid supply chamber 201 is 0.5 mm to 10 mm, and the gap between the dispersion wheel 2020 and the outer wall of the liquid supply chamber 201 is 1 mm to 5 mm.

[0030] In another embodiment, the gaps between the stirring blades 2022 and the inner wall of the liquid supply chamber 201, and between the stirring blades 2022 and the outer wall of the liquid supply chamber 201 are both 0.5 mm to 10 mm. Further, the gaps between the stirring blades 2022 and the inner wall of the liquid supply chamber 201, and between the stirring blades 2022 and the outer wall of the liquid supply chamber 201 are both 1 mm to 5 mm. Similar to the embodiment of the dispersion wheel described above, usually, the gaps between the stirring blades 2022 and the inner wall and the outer wall are the same. However, they may be different.

[0031] The slurry is sheared by the dispersion mechanism in the narrow liquid supply chamber 201, the shearing strength becomes higher, and the slurry fills the liquid supply chamber 201, so that a sufficient residence time can be obtained and the slurry can be sufficiently dispersed.

[0032] In another embodiment, a slurry dispersion discharge mechanism is provided in the slurry discharge region at the lower part of the mixing chamber. By providing it in this way, the slurry can be dispersed again before being discharged when discharging the slurry, and the homogeneity of the slurry can be further enhanced.

[0033] In the second aspect, as shown in FIG. 8, the present application provides equipment used for solid-liquid mixing and dispersion. This equipment includes the device 20 of the first aspect. By sealing the lower part of the device 20 with the sealing device 23, it is possible to prevent the leakage of the slurry in the device 20 and the entry of air into the device 20 from affecting the mixing of the slurry. Below the device 20, a bearing 22 and a motor 24 are provided. There is a bearing 22 above the motor 24. The motor 24 drives the main shaft 21 to rotate, thereby driving the powder pulverizing mechanism 206, the dispersion mechanism 202 and the impeller 207 to rotate, dispersing the powder and the slurry separately, and mixing them more homogeneously.

[0034] Note that although each module included in the above embodiments is divided based on functional logic, it is not limited to the above division as long as the corresponding functions can be realized. Also, the specific names of each functional unit are only used to distinguish each other and are not for limiting the protection scope of this application. Terms such as "implementation", "connection", and "coupling" should be understood in a broad sense unless otherwise explicitly defined and limited. For example, it may be a fixed connection, a removable connection, or an integral connection. It may be a mechanical connection or an electrical connection. It may be a direct connection, an indirect connection via an intermediate medium, or a communication inside two components. Those skilled in the art can understand the specific meanings of the above terms in this application according to specific situations.

[0035] The above is only a preferred embodiment of this application and is not used to limit this application. Any modifications, equivalent substitutions, and improvements made based on the gist and principles of this application should all be included within the protection scope of this application.

Explanation of Reference Numerals

[0036] 20…Device 200…Liquid supply port 201…Liquid supply chamber 202…Dispersion mechanism 203…Intermediate layer of cooling water 204…Heat insulation layer 205…Powder supply chamber 206…Powder pulverization mechanism 207…Impeller 208…Discharge port 2020…Dispersion wheel 2021…Hole 2022…Stirring blade 21…Main shaft 22…Bearing 23…Sealing device 24…Motor

Claims

1. An apparatus used for solid-liquid mixing and dispersion applied to battery manufacturing, comprising: The apparatus used for solid-liquid mixing and dispersion applied to battery manufacturing includes a powder pulverizing mechanism fixedly connected to a main shaft. The powder pulverizing mechanism is provided in a powder supply chamber, and the powder supply chamber has a powder supply port. A liquid supply chamber is provided outside the powder supply chamber. The liquid supply chamber has a liquid supply port, and a dispersion mechanism fixedly connected to the main shaft is provided in the liquid supply chamber. The dispersion mechanism is used to disperse the slurry and let it enter the mixing chamber. The lower part of the liquid supply chamber and the lower part of the powder supply chamber are respectively communicated with the upper part of the mixing chamber. An impeller fixedly connected to the main shaft is provided in the mixing chamber, and a tangential discharge port is provided at the lower part of the mixing chamber. An apparatus used for solid-liquid mixing and dispersion applied to battery manufacturing, characterized in that.

2. The liquid supply chamber is provided so as to surround the powder supply chamber, and the liquid supply chamber is annular. An apparatus used for solid-liquid mixing and dispersion applied to battery manufacturing according to Claim 1, characterized in that.

3. The powder pulverizing mechanism includes multiple layers of blades. An apparatus used for solid-liquid mixing and dispersion applied to battery manufacturing according to Claim 1 or 2, characterized in that.

4. The dispersion mechanism is a cylindrical dispersion wheel. An apparatus used for solid-liquid mixing and dispersion applied to battery manufacturing according to Claim 1 or 2, characterized in that.

5. The dispersion mechanism includes a plurality of stirring blades distributed in the circumferential direction. An apparatus used for solid-liquid mixing and dispersion applied to battery manufacturing according to Claim 1 or 2, characterized in that.

6. Holes or grooves are provided in the dispersion wheel. An apparatus used for solid-liquid mixing and dispersion applied to battery manufacturing according to Claim 4, characterized in that.

7. The gaps between the dispersion wheel and the inner wall of the liquid supply chamber, and between the dispersion wheel and the outer wall of the liquid supply chamber are both 0.5 mm to 10 mm. An apparatus used for solid-liquid mixing and dispersion applied to battery manufacturing according to Claim 4, characterized in that.

8. The gaps between the dispersion wheel and the inner wall of the liquid supply chamber, and between the dispersion wheel and the outer wall of the liquid supply chamber are both 1 mm to 5 mm. An apparatus used for solid-liquid mixing and dispersion applied to battery manufacturing according to Claim 7, characterized in that.

9. The gap between the stirring blade and the inner wall of the liquid supply chamber, and the gap between the stirring blade and the outer wall of the liquid supply chamber are both 0.5 mm to 10 mm. The device for solid-liquid mixing and dispersion applied to battery manufacturing according to claim 5, characterized in that.

10. The gap between the stirring blade and the inner wall of the liquid supply chamber, and the gap between the stirring blade and the outer wall of the liquid supply chamber are both 1 mm to 5 mm. The device for solid-liquid mixing and dispersion applied to battery manufacturing according to claim 9, characterized in that.

11. In the slurry discharge region at the lower part of the mixing chamber, a slurry dispersion discharge mechanism for discharging the slurry in a dispersed state is provided. The device for solid-liquid mixing and dispersion applied to battery manufacturing according to claim 1 or 2, characterized in that.

12. Equipment for solid-liquid mixing and dispersion applied to battery manufacturing, including the device for solid-liquid mixing and dispersion applied to battery manufacturing according to claim 1 or 2. The lower part of the device for solid-liquid mixing and dispersion applied to battery manufacturing is connected to a sealing device, and a bearing and a motor are provided under the device for solid-liquid mixing and dispersion applied to battery manufacturing. Equipment for solid-liquid mixing and dispersion applied to battery manufacturing, characterized in that.

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