Reaction device

Abstract

The utility model provides a reaction device which comprises a reaction container and a stirring assembly, the stirring assembly comprises a stirring shaft and a first stirring paddle, the first stirring paddle comprises a stirring disc and blades, the at least two blades are arranged at intervals in the circumferential direction of the stirring shaft, the stirring disc is connected to the stirring shaft in a sleeving mode, and the stirring shaft drives the stirring disc to rotate synchronously; the stirring disc is provided with openings, the openings and the blades are arranged in a one-to-one correspondence manner, the openings extend along the radial direction of the stirring shaft, each blade comprises a mounting part, at least one surface of the mounting part is provided with mounting grooves, the mounting grooves extend along the radial direction of the stirring shaft, at least two mounting grooves are arranged at intervals along the axial direction of the stirring shaft, and the mounting parts are inserted into the stirring disc through the openings; the stirring disc is in sliding connection with the mounting groove. According to the reaction device, by adjusting the relative positions of the paddles and the stirring disc, the rotation radius and height of the first stirring paddle are adjusted so as to meet the stirring requirements of different materials, and the stirring effect of the reaction device is improved.

Description

Technical Field

[0001] The present application relates to the technical field of precursor production equipment, and in particular to a reaction device. Background Art

[0002] Lithium-ion batteries are mainly composed of positive electrode materials, negative electrode materials, separators and electrolytes. The performance of the positive electrode materials directly affects the various performance indicators of lithium batteries, and the precursor is the main raw material of the ternary positive electrode material. The reactor is the core equipment for preparing the ternary precursor.

[0003] The reactor mainly includes a reactor body, a stirring shaft and a stirring paddle arranged in the reactor body. The stirring paddle can disperse the raw materials into the slurry along the axial or radial direction of the stirring shaft during stirring, thereby mixing the raw materials and the slurry. However, the reactor in the related art has poor dispersion and mixing effects on the raw materials or slurry of the precursor during the preparation process of the precursor. Utility Model Content

[0004] Based on this, the present application provides a reaction device to solve the deficiencies of the related art.

[0005] The reaction device provided in the present application comprises a reaction container and a stirring assembly, wherein the stirring assembly comprises a stirring shaft and a first stirring paddle, wherein the first stirring paddle comprises a stirring disk and a paddle, wherein at least two paddles are arranged at intervals along the circumference of the stirring shaft, the stirring disk is sleeved on the stirring shaft, and the stirring shaft drives the stirring disk to rotate synchronously;

[0006] The stirring disk has an opening, which is arranged one-to-one with the paddles, and the opening extends radially along the stirring shaft. The paddles include a mounting portion, and at least one side of the mounting portion has a mounting groove, which extends radially along the stirring shaft. At least two mounting grooves are arranged at intervals along the axial direction of the stirring shaft, and the mounting portion is inserted into the stirring disk through the opening so that the mounting groove is slidably arranged on the stirring disk.

[0007] In a possible implementation, the stirring assembly also includes a fixing unit, the fixing unit includes a first connecting member and a second connecting member, the stirring plate also has a fixing through hole, the fixing through hole is located on the side of the opening, at least two fixing through holes are arranged at intervals along the radial direction of the stirring shaft, the first connecting member is inserted into the fixing through hole, and the first connecting member is connected to the mounting portion through the second connecting member.

[0008] In a possible implementation, the paddle also includes a stirring portion, which is connected to the side of the mounting portion facing away from the stirring shaft, the projection of the mounting portion on the end surface of the stirring shaft is a straight line, and the projection of the stirring portion on the end surface of the stirring shaft is a straight line or a curve.

[0009] In a possible implementation, the blade includes a first blade and a second blade, a projection shape of the first blade on an end surface of the stirring shaft is different from a projection shape of the second blade on the end surface of the stirring shaft, and / or a projection shape of the first blade on a central axis surface of the stirring shaft is different from a projection shape of the second blade on the central axis surface of the stirring shaft;

[0010] The first blades are symmetrically arranged in pairs along the radial direction of the stirring shaft, and the second blades are symmetrically arranged in pairs along the radial direction of the stirring shaft.

[0011] In one possible implementation, the reaction device provided in the present application also includes a flow guide component, which includes a flow guide tube, which is connected to the inner wall of the reaction container, the bottom of the flow guide tube is open, and the side wall of the flow guide tube has a flow guide port, and at least two flow guide ports are arranged at intervals along the axial direction of the stirring shaft.

[0012] In a possible implementation, the stirring assembly further includes a second stirring paddle, the second stirring paddle is sleeved on the stirring shaft, the first stirring paddle and the second stirring paddle are spaced apart along the axial direction of the stirring shaft, and the second stirring paddle is located above the first stirring paddle;

[0013] The guide port includes a first guide port and a second guide port, the first guide port is arranged corresponding to the first stirring paddle, and the second guide port is arranged corresponding to the second stirring paddle.

[0014] In a possible implementation, the area of ​​the guide port is greater than or equal to 0.25 m2 and less than or equal to 0.5 m2.

[0015] In a possible implementation, the flow guide assembly further includes a baffle, the baffle is connected to the inner wall of the reaction container, and at least two baffles are arranged at intervals along the circumference of the reaction container;

[0016] The side wall of the guide tube is connected to the baffle.

[0017] In one possible implementation, the reaction device provided in the present application also includes a feed pipe, the side wall of the feed pipe has a discharge port, at least two discharge ports are arranged at intervals along the axial direction of the feed pipe, at least two discharge ports are located on both sides of the radial direction of the feed pipe, and the projections of each discharge port in the axial direction of the feed pipe are staggered with each other.

[0018] In a possible implementation, the feeding pipe has protrusions, and at least two protrusions are dispersedly disposed on the inner wall of the feeding pipe.

[0019] In a possible implementation, an extension length of the mounting portion along the axial direction of the stirring shaft gradually increases from inside to outside.

[0020] In a possible implementation, the mounting portion includes a first side and a second side relative to each other along the axial direction of the stirring shaft, the first side is arranged parallel to the radial direction of the stirring shaft, and the second side is arranged obliquely relative to the radial direction of the stirring shaft. The reaction device provided in the present application includes a reaction vessel and a stirring assembly, the stirring assembly includes a stirring shaft and a first stirring paddle, the first stirring paddle includes a stirring disk and a paddle, the stirring disk includes an opening, the paddle includes a mounting portion, and the mounting portion includes a mounting groove. By setting a stirring shaft to drive the first stirring paddle to rotate, by setting a mounting portion to connect the stirring disk, by setting an opening for the mounting portion to insert the stirring disk, and by setting a mounting groove to make the mounting portion and the stirring disk slidingly connected along the radial direction of the stirring shaft, it is convenient to adjust the relative position of the paddle and the stirring disk in the radial direction of the stirring shaft, so as to facilitate the adjustment of the rotation radius of the first stirring paddle, by setting a plurality of mounting grooves at intervals along the axial direction of the stirring shaft, and then by making the stirring disk slidingly connected to different mounting grooves, the relative position of the paddle and the stirring disk in the axial direction of the stirring shaft can be adjusted, so as to facilitate the adjustment of the height of the first stirring paddle. Therefore, by adjusting the rotation radius and height of the first stirring paddle, the first stirring paddle can be adapted to the stirring requirements of different materials, thereby improving the stirring effect of the reaction device and expanding the scope of use of the reaction device.

[0021] In addition to the technical problems solved by the embodiments of the present application described above, the technical features that constitute the technical solutions, and the beneficial effects brought about by the technical features of these technical solutions, other technical problems that can be solved by the reaction device provided by the present application, other technical features included in the technical solutions, and the beneficial effects brought about by these technical features will be further described in detail in the specific implementation methods. BRIEF DESCRIPTION OF THE DRAWINGS

[0022] In order to more clearly illustrate the embodiments of the present application or the technical solutions in the prior art, a brief introduction will be given below to the drawings required for use in the embodiments or the description of the prior art. Obviously, the drawings described below are some embodiments of the present application. For ordinary technicians in this field, other drawings can be obtained based on these drawings without paying any creative work.

[0023] Figure 1 A schematic diagram of the structure of a reaction device provided in an embodiment of the present application;

[0024] Figure 2 A schematic diagram of the structure of the first stirring paddle in the reaction device provided in an embodiment of the present application;

[0025] Figure 3 for Figure 2 Front view of

[0026] Figure 4 A schematic diagram of the structure of a stirring plate in a reaction device provided in an embodiment of the present application;

[0027] Figure 5 A schematic diagram of the structure of the paddles in the reaction device provided in the embodiment of the present application;

[0028] Figure 6 A schematic diagram of the structure of the installation part of the reaction device provided in the embodiment of the present application;

[0029] Figure 7 A schematic diagram of the structure of a fixing unit in a reaction device provided in an embodiment of the present application;

[0030] Figure 8 A schematic diagram of the structure of a flow guide tube in a reaction device provided in an embodiment of the present application;

[0031] Fig. 9 This is a schematic diagram of the structure of a feed pipe in a reaction device provided in an embodiment of the present application.

[0032] Description of reference numerals:

[0033] 100-reaction container; 110-reaction chamber;

[0034] 200-stirring assembly; 210-stirring shaft; 220-first stirring paddle; 221-stirring plate; 2211-opening; 2212-fixing through hole; 222-paddle; 2221-mounting portion; 2221a-mounting groove; 2221b-first side; 2221c-second side; 2222-stirring portion; 223-fixing unit; 2231-first connecting member; 2232-second connecting member; 2233-third connecting member; 230-second stirring paddle; 240-driving motor;

[0035] 300-flow guide assembly; 310-flow guide tube; 311-flow guide port; 3111-first flow guide port; 3112-second flow guide port; 320-baffle;

[0036] 400 - feed pipe; 410 - discharge port; 420 - protrusion. DETAILED DESCRIPTION

[0037] In order to make the purpose, technical scheme and advantages of the present application clearer, the technical scheme in the embodiment of the present application will be described in more detail below in conjunction with the drawings in the preferred embodiments of the present application. In the drawings, the same or similar reference numerals throughout represent the same or similar parts or parts with the same or similar functions. The described embodiments are part of the embodiments of the present application, not all of the embodiments. The embodiments described below with reference to the drawings are exemplary and are intended to be used to explain the present application, and should not be construed as limitations on the present application. Based on the embodiments in the present application, all other embodiments obtained by ordinary technicians in this field without making creative work are within the scope of protection of the present application. The embodiments of the present application are described in detail below in conjunction with the drawings.

[0038] In the description of this application, it should be noted that, unless otherwise clearly specified and limited, the terms "installed", "connected", and "connected" should be understood in a broad sense, for example, it can be a fixed connection, or it can be an indirect connection through an intermediate medium, it can be the internal connection of two elements or the interaction relationship between two elements. For ordinary technicians in this field, the specific meanings of the above terms in this application can be understood according to specific circumstances.

[0039] In the description of the present application, it should be understood that the terms "upper", "lower", "front", "back", "vertical", "horizontal", "top", "bottom", "inside", "outside", etc., indicating orientations or positional relationships, are orientations or positional relationships based on the drawings, and are only for the convenience of describing the present application 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 a limitation on the present application.

[0040] The terms "first", "second", "third" (if any) in the specification and claims of this application and the above-mentioned drawings are used to distinguish similar objects, and are not necessarily used to describe a specific order or sequence. It should be understood that the numbers used in this way can be interchanged where appropriate, so that the embodiments of the application described herein can be implemented in an order other than those illustrated or described herein, for example.

[0041] In addition, the terms "comprises," "comprising," and "having," and any variations thereof, are intended to cover a non-exclusive inclusion, for example, a process, method, system, product, or display comprising a series of steps or elements is not necessarily limited to those steps or elements explicitly listed, but may include other steps or elements not explicitly listed or inherent to such process, method, product, or display.

[0042] Lithium-ion batteries are mainly composed of positive electrode materials, negative electrode materials, separators and electrolytes. The performance of the positive electrode materials directly affects the various performance indicators of lithium batteries, and the precursor is the main raw material of the ternary positive electrode material. The reactor is the core equipment for preparing the ternary precursor.

[0043] The reactor mainly includes a reactor body, a stirring shaft and a stirring paddle arranged in the reactor body. The stirring paddle can disperse the raw materials into the slurry along the axial or radial direction of the rear stirring shaft during stirring, thereby mixing the raw materials and the slurry. However, the reactor in the related art has poor dispersion and mixing effects on the raw materials or slurry of the precursor during the preparation process of the precursor.

[0044] In view of this, an embodiment of the present application provides a reaction device, wherein a plurality of mounting grooves are provided on the mounting portion of the blade at axial intervals along the stirring shaft, and the mounting grooves are slidably connected to the stirring disk, and then the mounting grooves and the stirring disk cooperate to make the height and the rotation radius of the first stirring paddle adjustable, thereby improving the dispersion and mixing effect of the first stirring paddle on different raw materials, thereby improving the dispersion and mixing effect of the reaction device.

[0045] Reference Figures 1 to 6 As shown, the reaction device provided in the embodiment of the present application includes a reaction container 100 and a stirring assembly 200, the stirring assembly 200 includes a stirring shaft 210 and a first stirring paddle 220, the first stirring paddle 220 includes a stirring disk 221 and at least two blades 222, the stirring disk 221 is sleeved on the stirring shaft 210, and the stirring shaft 210 drives the stirring disk 221 to rotate synchronously.

[0046] The stirring disk 221 has an opening 2211, which extends radially along the stirring shaft 210. At least two openings 2211 are arranged at intervals along the circumference of the stirring shaft 210. The blades 222 and the openings 2211 are arranged in a one-to-one correspondence. The blades 222 include a mounting portion 2221. At least one side of the mounting portion 2221 has a mounting groove 2221a, which extends radially along the stirring shaft 210. At least two mounting grooves 2221a are arranged at intervals along the axial direction of the stirring shaft 210. The mounting portion 2221 is inserted into the stirring disk 221 through the opening 2211 so that the mounting groove 2221a is slidably arranged on the stirring disk 221, and the mounting portion 2221 is fixedly connected to the stirring disk 221.

[0047] In the present application, a reaction chamber 110 is formed inside the reaction container 100 to provide a suitable reaction environment for the materials, so that various materials are stirred in the reaction chamber 110 to be uniformly mixed, thereby reacting to generate the desired precursor product.

[0048] The stirring assembly 200 is used to stir the material in the reaction chamber 110. Specifically, the stirring assembly 200 may include a stirring shaft 210, a first stirring paddle 220 and a driving motor 240. The driving motor 240 is connected to the stirring shaft 210 to drive the stirring shaft 210 to rotate, and then the first stirring paddle 220 is driven to rotate synchronously through the stirring shaft 210, so that the first stirring paddle 220 stirs the material located in the reaction chamber 110.

[0049] It can be understood that the materials entering the reaction chamber 110 include at least two types. For example, the materials may include a first material and a second material. The first material is pre-placed in the reaction chamber 110, and then the second material is placed in the reaction chamber 110. Through the stirring action of the first stirring paddle 220, the second material is evenly dispersed to various positions of the reaction chamber 110, so that the second material and the first material can be evenly mixed, thereby improving the reaction speed and production quality of the precursor.

[0050] Since different first materials and different second materials have different mixing requirements during stirring, for example, some materials have higher requirements for mixing uniformity, while some materials have lower requirements for mixing uniformity, in order to make the first stirring paddle 220 adapt to the stirring requirements of different materials, in a specific implementation, the first stirring paddle 220 may include a stirring disk 221 and paddles 222 connected to each other, and a plurality of paddles 222 may be arranged on the stirring disk 221 at intervals along the circumference of the stirring shaft 210, and the stirring disk 221 has an opening 2211 extending radially along the stirring shaft 210. The paddle 222 has a mounting groove 2221a extending along the radial direction of the stirring shaft 210. The paddle 222 can be inserted into the stirring disk 221 through the opening 2211, so that the mounting groove 2221a and the stirring disk 221 are slidably connected. In this way, when it is necessary to adjust the turning radius of the first stirring paddle 220, the mounting groove 2221a can be made to slide relative to the stirring disk 221 along the radial direction of the stirring shaft 210, thereby changing the relative position of the paddle 222 and the stirring disk 221 in the radial direction of the stirring shaft 210, thereby changing the turning radius of the first stirring paddle 220.

[0051] Since multiple installation grooves 2221a are arranged at intervals along the axial direction of the stirring shaft 210, when the height of the first stirring paddle 220 needs to be adjusted, different installation grooves 2221a can be slidably connected to the stirring disk 221, thereby changing the relative position of the paddle 222 and the stirring disk 221 in the axial direction of the stirring shaft 210, thereby changing the height of the first stirring paddle 220.

[0052] Such a configuration can make the turning radius and height of the first stirring paddle 220 adjustable, so as to adjust the first stirring paddle 220 according to the mixing requirements of different materials, thereby improving the dispersion and mixing effect of the first stirring paddle 220, thereby improving the stirring effect of the reaction device and expanding the application range of the reaction device.

[0053] It is worth mentioning that the mounting groove 2221 a may be located on one side or both sides of the mounting portion 2221 in the thickness direction, that is, the mounting groove 2221 a does not penetrate through two opposite sides of the mounting portion 2221 in the thickness direction.

[0054] The reaction device provided in the embodiment of the present application includes a reaction container 100 and a stirring assembly 200, wherein the stirring assembly 200 includes a stirring shaft 210 and a first stirring paddle 220, wherein the first stirring paddle 220 includes a stirring disk 221 and a paddle 222, wherein the stirring disk 221 includes an opening 2211, and the paddle 222 includes a mounting portion 2221, wherein the mounting portion 2221 includes a mounting groove 2221a. The stirring shaft 210 is provided to drive the first stirring paddle 220 to rotate, the mounting portion 2221 is provided to connect the stirring disk 221, the opening 2211 is provided to allow the mounting portion 2221 to be inserted into the stirring disk 221, and the mounting groove 2221a is provided to allow the mounting portion 2221 and the stirring disk 221 to be connected to each other in a radial direction of the stirring shaft 210, thereby facilitating the adjustment of the relative position of the paddle 222 and the stirring disk 221 in the radial direction of the stirring shaft 210, thereby facilitating the adjustment of the radius of gyration of the first stirring paddle 220, and A plurality of mounting grooves 2221a are arranged at axial intervals along the stirring shaft 210, and the stirring disk 221 is slidably connected to different mounting grooves 2221a to adjust the relative position of the paddle 222 and the stirring disk 221 in the axial direction of the stirring shaft 210, thereby facilitating the adjustment of the height of the first stirring paddle 220. Thus, by adjusting the turning radius and height of the first stirring paddle 220, the first stirring paddle 220 can be adapted to the stirring requirements of different materials, thereby improving the stirring effect of the reaction device and expanding the scope of use of the reaction device.

[0055] Reference Figure 3 and Figure 7 As shown, in a possible implementation, the stirring assembly 200 also includes a fixing unit 223, the fixing unit 223 includes a first connecting member 2231 and a second connecting member 2232, the stirring plate 221 also has a fixing through hole 2212, the fixing through hole 2212 is located on the side of the opening 2211, at least two fixing through holes 2212 are arranged at radial intervals along the stirring shaft 210, the first connecting member 2231 is inserted into the fixing through hole 2212, and the first connecting member 2231 is connected to the mounting portion 2221 through the second connecting member 2232.

[0056] In this way, first, different mounting grooves 2221a can be used to cooperate with the stirring disk 221 to adjust the height of the first stirring paddle 220, and then, the mounting groove 2221a can be made to slide radially along the stirring shaft 210 relative to the stirring disk 221 to adjust the rotation radius of the first stirring shaft 210. After adjusting and confirming the position of the paddle 222, the paddle 222 can be fixed on the stirring disk 221 through the cooperation of the first connecting member 2231, the second connecting member 2232 and the fixed through hole 2212 to prevent the paddle 222 and the stirring disk 221 from moving relative to each other when the first stirring paddle 220 rotates.

[0057] In addition, the fixing unit 223 may further include a third connecting member 2233 , the first end of the second connecting member 2232 is inserted into the first connecting member 2231 and the mounting portion 2221 in sequence, and the third connecting member 2233 is threadedly connected to the second end of the second connecting member 2232 .

[0058] That is to say, the first connecting member 2231 can be provided with a first avoidance hole, the mounting portion 2221 can be provided with a second avoidance hole, the first avoidance hole and the second avoidance hole are provided correspondingly, the third connecting member 2233 can be provided with a threaded connection hole, and the second connecting member 2232 can be provided with an external thread matching the threaded connection hole. After the first connecting member 2231 passes through the fixing through hole 2212, the second connecting member 2232 passes through the first avoidance hole and the second avoidance hole in sequence from one side of the mounting portion 2221, and then is threadedly connected to the third connecting member 2233 located on the other side of the mounting portion 2221. In this way, the mounting portion 2221 can be fixedly connected to the stirring plate 221 through the cooperation of the first connecting member 2231, the second connecting member 2232 and the third connecting member 2233.

[0059] The first connecting member 2231 and the second connecting member 2232 may be bolts, and the third connecting member 2233 may be a nut.

[0060] Reference Figure 5 As shown, in some embodiments, the paddle 222 also includes a stirring portion 2222, which is connected to the side of the mounting portion 2221 facing away from the stirring shaft 210, the projection of the mounting portion 2221 on the end surface of the stirring shaft 210 is a straight line, and the projection of the stirring portion 2222 on the end surface of the stirring shaft 210 is a straight line or a curve.

[0061] It can be understood that the mounting portion 2221 is used to connect with the stirring disk 221 so as to mount the paddle 222 on the stirring disk 221, and the stirring portion 2222 is used to stir the material. Since the mounting portion 2221 needs to be inserted into the stirring disk 221 along the radial direction of the stirring shaft 210 through the opening 2211, if the projection of the mounting portion 2221 on the end surface of the stirring shaft 210 is non-linear, the mounting portion 2221 cannot be smoothly inserted into the opening 2211, and the shape of the stirring portion 2222 can be set in various ways, that is, the first stirring paddle 220 can include two or more different types of paddles 222 to improve the dispersion effect and mixing effect of the first stirring paddle 220.

[0062] In some embodiments, the blade 222 includes a first blade and a second blade, and the projection shape of the first blade on the end surface of the stirring shaft 210 is different from the projection shape of the second blade on the end surface of the stirring shaft 210, and / or the projection shape of the first blade on the central axis of the stirring shaft 210 is different from the projection shape of the second blade on the central axis of the stirring shaft 210. The first blades are symmetrically arranged in pairs along the radial direction of the stirring shaft 210, and the second blades are symmetrically arranged in pairs along the radial direction of the stirring shaft 210.

[0063] In this way, the first stirring paddle 220 can include at least two different types of blades 222, wherein the blades 222 of the same type are symmetrically distributed on the stirring disk 221, that is, the first blades are symmetrically arranged in pairs along the radial direction of the stirring shaft 210, and the second blades are symmetrically arranged in pairs along the radial direction of the stirring shaft 210, thereby avoiding the center of gravity offset of the first stirring paddle 220.

[0064] Exemplarily, the projection shape of the first blade on the end surface of the stirring shaft 210 can be a straight line, the projection shape of the second blade on the end surface of the stirring shaft 210 can be a curve, and / or, the projection shape of the first blade on the central axis surface of the stirring shaft 210 can be a pentagon, and the projection shape of the second blade on the central axis surface of the stirring shaft 210 can be a quadrilateral.

[0065] Reference Figure 1 and Figure 8 As shown, in a possible implementation, the reaction device provided in the present application also includes a flow guide component 300, the flow guide component 300 includes a flow guide tube 310, the stirring component 200 is located in the flow guide tube 310, the flow guide tube 310 is connected to the inner wall of the reaction vessel 100, the bottom of the flow guide tube 310 is open, and the side wall of the flow guide tube 310 has a flow guide port 311, at least two flow guide ports 311 are spaced apart along the axial direction of the stirring shaft 210, and at least two flow guide ports 311 are spaced apart along the circumferential direction of the stirring shaft 210.

[0066] It should be noted that after the material enters the reaction chamber 110, under the stirring action of the first stirring paddle 220, the material can be dispersed to each guide port 311 along the radial direction of the stirring shaft 210, and dispersed to the outside of the guide tube 310, and dispersed along the axial direction of the stirring shaft 210, and then dispersed to the outside of the guide tube 310 through the bottom of the guide tube 310. In this way, the material can form multiple mixing paths in the reaction chamber 110, thereby increasing the circulation amount of the material in the reaction vessel 100, thereby improving the mixing uniformity between various materials.

[0067] Reference Figure 1 and Figure 8 As shown, in some embodiments, the stirring assembly 200 also includes a second stirring paddle 230, which is sleeved on the stirring shaft 210, and the first stirring paddle 220 and the second stirring paddle 230 are arranged at intervals along the axial direction of the stirring shaft 210, and the second stirring paddle 230 is located above the first stirring paddle 220.

[0068] The guide port 311 includes a first guide port 3111 and a second guide port 3112 . The first guide port 3111 is arranged corresponding to the height of the first stirring paddle 220 , and the second guide port 3112 is arranged corresponding to the height of the second stirring paddle 230 .

[0069] It should be noted that the first stirring paddle 220 mainly exerts a radial force on the material along the stirring shaft 210, and the second stirring paddle 230 mainly exerts an axial force on the material along the stirring shaft 210. The material dispersed by the first stirring paddle 220 can flow through the first guide port 3111 to the space between the guide tube 310 and the reaction vessel 100, and enter the space between the guide tube 310 and the reaction vessel 100 through the bottom of the guide tube 310, and then enter the guide tube 310 from the second guide port 3112 under the action of the second stirring paddle 230, thereby forming multiple mixing paths. Such repeated cycles can improve the mixing uniformity of the materials.

[0070] In a possible implementation, the area of ​​the guide port 311 is greater than or equal to 0.25 m2 and less than or equal to 0.5 m2.

[0071] It is understandable that, when the side wall area of ​​the guide tube 310 is limited, if the area of ​​the guide port 311 is too large, more guide ports 311 cannot be opened on the side wall of the guide tube 310, thereby reducing the material mixing path; if the area of ​​the guide port 311 is too small, the material cannot flow smoothly between the inside and outside of the guide tube 310. Therefore, setting the area of ​​the guide port 311 between 0.25㎡ and 0.5㎡ is a relatively reasonable range, which can ensure that the number of the guide ports 311 is sufficient and the area of ​​the guide ports 311 is large enough.

[0072] Exemplarily, the area of ​​the guide port 311 may be any one of 0.25 m2, 0.3 m2, 0.4 m2, and 0.5 m2, or may be within any two value ranges.

[0073] Reference Figure 1 As shown, in a possible implementation, the flow guide assembly 300 also includes a baffle 320, which is connected to the inner wall of the reaction vessel 100, at least two baffles 320 are arranged at intervals along the circumference of the reaction vessel 100, and the side wall of the flow guide tube 310 is connected to the baffle 320.

[0074] In this way, the baffle 320 can prevent the material in the reaction chamber 110 from forming a deeper vortex when being stirred, thereby preventing the air above the liquid level from being sucked into the material and causing oxidation of the material, thereby improving the reaction quality of the precursor.

[0075] Among them, the top of the guide tube 310 can be welded to the top wall of the reaction vessel 100, and the side wall of the guide tube 310 can be connected to the baffle 320 through a triangular prism, and the triangular prism extends radially along the stirring shaft 210, thereby defining a flow space between the guide tube 310 and the baffle 320, and between the guide tube 310 and the reaction vessel 100.

[0076] Reference Figure 1 and Fig. 9 As shown, in a possible implementation, the reaction device provided in the present application also includes a feed pipe 400, the side wall of the feed pipe 400 has a discharge port 410, at least two discharge ports 410 are arranged at intervals along the axial direction of the feed pipe 400, at least two discharge ports 410 are located on both sides of the radial direction of the feed pipe 400, and the projections of each discharge port 410 in the axial direction of the feed pipe 400 are staggered with each other.

[0077] It can be understood that the first material can be pre-fed into the reaction chamber 110, and the second material can be fed into the reaction chamber 110 through the feed pipe 400, and the feed pipe 400 has a plurality of discharge ports 410, and the plurality of discharge ports 410 are arranged at intervals along the axial direction of the feed pipe 400, and the feed pipe 400 is provided with discharge ports 410 on both radial sides, and the discharge ports 410 on both radial sides of the feed pipe 400 are staggered with each other, so that the second material can be evenly fed into the reaction chamber 110, thereby improving the dispersion and mixing effect of the reaction device.

[0078] Among them, the number of feed pipes 400 can be multiple, for example, 1 to 6, and the multiple feed pipes 400 are arranged at circumferential intervals along the stirring shaft 210. Each feed pipe 400 can be provided with 10 to 20 discharge ports 410. The diameter of the discharge port 410 can be between 3-18 mm, and the diameter of the feed pipe 400 can be between 20-60 mm.

[0079] Reference Fig. 9 As shown, in some embodiments, the feeding tube 400 has a protrusion 420 , and at least two protrusions 420 are dispersedly disposed on the inner wall of the feeding tube 400 .

[0080] For example, the protrusion 420 can be arranged corresponding to the discharge port 410, that is, the protrusion 420 can be arranged in sequence between two adjacent discharge ports 410 along the axial direction of the feed pipe 400. Since the discharge ports 410 are arranged at intervals along the axial direction of the feed pipe 400, and the discharge ports 410 are provided on both radial sides of the feed pipe 400, the discharge ports 410 located on both radial sides of the feed pipe 400 are staggered with each other. In this way, the protrusion 420 can be distributed in a spiral shape around the axial direction of the feed pipe 400, so that turbulence is formed when the material flows in the feed pipe 400, which helps to diffuse the material, so that the material can be evenly dispersed to various positions of the reaction chamber 110.

[0081] In a possible implementation, the extension length of the mounting portion 2221 along the axial direction of the stirring shaft 210 gradually increases from inside to outside.

[0082] That is to say, along the axial direction of the stirring shaft 210, the extension length of the outer side of the mounting portion 2221 is greater than the extension length of the inner side of the mounting portion 2221. In this way, the mounting portion 2221 can present different extension lengths from the inside to the outside along the axial direction of the stirring shaft 210, thereby generating different stirring forces at different positions. This helps to make the material stirring more uniform when processing materials such as high-viscosity liquids or solid-liquid mixtures.

[0083] Reference Figure 3 As shown, in a specific implementation, the mounting portion 2221 includes a first side edge 2221b and a second side edge 2221c opposite to each other along the axial direction of the stirring shaft 210, the first side edge 2221b is arranged parallel to the radial direction of the stirring shaft 210, and the second side edge 2221c is arranged obliquely relative to the radial direction of the stirring shaft 210. In this way, not only can the extension length of the mounting portion 2221 along the axial direction of the stirring shaft 210 gradually increase from the inside to the outside, but also the second side edge 2221c is arranged obliquely relative to the radial direction of the stirring shaft 210, which can reduce the resistance of the material to the first stirring paddle 220, thereby reducing the energy consumption of the reaction device, and making the reaction device run more stably.

[0084] Finally, it should be noted that the above embodiments are only used to illustrate the technical solutions of the present application, rather than to limit it. Although the present application has been described in detail with reference to the aforementioned embodiments, those skilled in the art should understand that they can still modify the technical solutions described in the aforementioned embodiments, or replace some or all of the technical features therein with equivalents. However, these modifications or replacements do not cause the essence of the corresponding technical solutions to deviate from the scope of the technical solutions of the embodiments of the present application.

Claims

1. A reaction device, characterized in that: The invention comprises a reaction container and a stirring assembly, wherein the stirring assembly comprises a stirring shaft and a first stirring paddle, wherein the first stirring paddle comprises a stirring disk and a paddle connected to each other, wherein at least two paddles are arranged at intervals along the circumference of the stirring shaft, the stirring disk is sleeved on the stirring shaft, and the stirring shaft drives the stirring disk to rotate synchronously; The stirring disk has an opening, and the opening is arranged in a one-to-one correspondence with the blades. The opening extends along the radial direction of the stirring shaft. The blades include a mounting portion, and at least one side of the mounting portion has a mounting groove, and the mounting groove extends along the radial direction of the stirring shaft. At least two mounting grooves are arranged at intervals along the axial direction of the stirring shaft. The mounting portion is inserted into the stirring disk through the opening so that the mounting groove is slidably arranged on the stirring disk.

2. The reaction device according to claim 1, characterized in that: It also includes a fixing unit, which includes a first connecting member and a second connecting member. The stirring plate also has a fixing through hole, which is located on the side of the opening. At least two fixing through holes are arranged at intervals along the radial direction of the stirring shaft. The first connecting member is inserted into the fixing through hole, and the first connecting member is connected to the mounting portion through the second connecting member.

3. The reaction device according to claim 1, characterized in that: The paddle further includes a stirring portion, which is connected to a side of the mounting portion away from the stirring shaft, wherein a projection of the mounting portion on the end surface of the stirring shaft is a straight line, and a projection of the stirring portion on the end surface of the stirring shaft is a straight line or a curve.

4. The reaction device according to claim 3, characterized in that: The blades include a first blade and a second blade, the projection shape of the first blade on the end surface of the stirring shaft is different from the projection shape of the second blade on the end surface of the stirring shaft, and / or the projection shape of the first blade on the central axis surface of the stirring shaft is different from the projection shape of the second blade on the central axis surface of the stirring shaft; The first blades are symmetrically arranged in pairs along the radial direction of the stirring shaft, and the second blades are symmetrically arranged in pairs along the radial direction of the stirring shaft.

5. The reaction device according to any one of claims 1 to 4, characterized in that: It also includes a flow guide component, which includes a flow guide tube, the flow guide tube is connected to the inner wall of the reaction container, the stirring component is located in the flow guide tube, the bottom of the flow guide tube is open, the side wall of the flow guide tube has a flow guide port, and at least two flow guide ports are spaced apart along the axial direction of the stirring shaft.

6. The reaction device according to claim 5, characterized in that: The stirring device further comprises a second stirring paddle, wherein the second stirring paddle is sleeved on the stirring shaft, the first stirring paddle and the second stirring paddle are spaced apart along the axial direction of the stirring shaft, and the second stirring paddle is located above the first stirring paddle; The guide port includes a first guide port and a second guide port, the first guide port is arranged corresponding to the first stirring paddle, and the second guide port is arranged corresponding to the second stirring paddle.

7. The reaction device according to claim 5, characterized in that: The area of ​​the guide port is greater than or equal to 0.25 m2 and less than or equal to 0.5 m2.

8. The reaction device according to claim 5, characterized in that: The flow guide assembly further includes a baffle, the baffle being connected to the inner side wall of the reaction container, and at least two baffles being arranged at intervals along the circumference of the reaction container; The side wall of the guide tube is connected to the baffle.

9. The reaction device according to any one of claims 1 to 4, characterized in that: It also includes a feed pipe, the side wall of which has a discharge port, at least two of which are spaced apart along the axial direction of the feed pipe, at least two of which are located on both sides of the radial direction of the feed pipe, and the projections of each of the discharge ports in the axial direction of the feed pipe are staggered with each other.

10. The reaction device according to claim 9, characterized in that: The feeding pipe has protrusions, and at least two of the protrusions are dispersedly arranged on the inner wall of the feeding pipe.

11. The reaction device according to any one of claims 1 to 4, characterized in that: The extension length of the mounting portion along the axial direction of the stirring shaft gradually increases from inside to outside.

12. The reaction device according to claim 11, characterized in that: The mounting portion includes a first side and a second side opposite to each other along the axial direction of the stirring shaft, the first side is arranged parallel to the radial direction of the stirring shaft, and the second side is arranged inclined relative to the radial direction of the stirring shaft.

Images