Cutter of dry-method powder high-speed mixing equipment
By designing a tool for dry powder high-speed mixing equipment including dispersing knife, spiral knife, compounding knife and mixing knife, the problem of uneven powder mixing in the prior art is solved, more efficient material mixing is achieved, and the quality of the battery pole sheet is improved.
Patent Information
- Application Number
- CN202421798625.2
- Authority / Receiving Office
- CN · China
- Patent Type
- Utility models(China)
- Current Assignee / Owner
- Filing Date
- 2024-07-26
- Publication Date
- 2025-05-06
- Estimated Expiration
- 2034-07-26
AI Technical Summary
In the prior art, the tool of the powder mixing equipment can only stir the animal material in the horizontal plane, resulting in uneven mixing of the material and affecting the quality of the battery pole.
A tool for dry powder high-speed mixing equipment is designed, including a dispersing knife, spiral knife, material pooling knife and mixing knife arranged along the axial interval of the agitating drive shaft. Through the unique structure and layout of these tools, uniform mixing of materials is achieved.
Through the synergy between the dispersing knife, spiral knife, compounding knife and mixing knife, it is possible to better stir and mix materials, improve the mixing uniformity of the materials in the mixing barrel, and thus improve the quality of the battery pole sheet.
Smart Images
Figure CN222829427U_ABST
Abstract
Description
Technical Field
[0001] The present application relates to battery pole piece preparation technology, and in particular to a cutting tool for dry powder high-speed mixing equipment. Background Art
[0002] With the continuous development of new energy technology, the requirements for batteries are also increasing, so how to improve battery quality is particularly important. Lithium-ion batteries are widely used in various products due to their advantages such as high operating voltage, no memory effect, low self-discharge and long cycle life. Among them, the pole piece is an important component of lithium-ion batteries, and the quality of the pole piece directly affects the quality of lithium-ion batteries.
[0003] In the solutions of the related art, there are many different processes for preparing the pole pieces of lithium-ion batteries. Among them, the dry process does not use any solvent in the preparation process, and the pole piece can be prepared only by mixing multiple powders. When mixing the powders, a powder mixing device is generally required to evenly mix the different powder materials. However, the tool of the powder mixing device in the related art can only stir the materials in the horizontal plane, which is easy to cause uneven mixing of the materials, which may affect the quality of the pole piece. Utility Model Content
[0004] In order to overcome the above-mentioned defects of the related art, the purpose of the present application is to provide a tool for a dry powder high-speed mixing equipment. The tool of the present application can spirally lift the material in the mixing barrel and mix it evenly, thereby improving the uniformity of material mixing, which is beneficial to improving the quality of the prepared battery electrodes.
[0005] The present application provides a tool for a dry powder high-speed mixing device, which is used to be installed in a mixing barrel of the powder mixing device, and includes a dispersing knife, a spiral knife, a gathering knife and a mixing knife arranged at intervals along the axial direction of a stirring drive shaft, wherein the dispersing knife is arranged close to the bottom wall of the mixing barrel, and the mixing knife is arranged close to the top wall of the mixing barrel;
[0006] The dispersing knife comprises a dispersing knife body, a plurality of first dispersing blades and a plurality of second dispersing blades, wherein the plurality of first dispersing blades and the plurality of second dispersing blades are arranged at staggered intervals along the circumference of the dispersing knife body, the first dispersing blades and the second dispersing blades are both inclined to the dispersing knife body, and the inclination directions of the first dispersing blades and the second dispersing blades are opposite;
[0007] The spiral cutter comprises a spiral cutter body and a plurality of spiral blades, wherein the plurality of spiral blades are arranged at intervals along the circumference of the spiral cutter body, and the spiral blades are arranged obliquely toward the top wall of the mixing barrel; in a plane perpendicular to the axial direction of the stirring drive shaft, the projection of the spiral blade is triangular, and along the rotation direction of the spiral cutter, the spiral blade comprises a first side surface and a second side surface opposite to each other, wherein the first side surface is located in front of the rotation direction of the spiral cutter, and the height of the first side surface is lower than the height of the second side surface;
[0008] The material gathering knife comprises a material gathering knife body and a plurality of material gathering blades, wherein the plurality of material gathering blades are arranged at intervals along the circumference of the material gathering knife body, and the material gathering blades are arranged obliquely toward the top wall of the mixing barrel; in a plane perpendicular to the axial direction of the stirring drive shaft, the projection of the material gathering blades is trapezoidal;
[0009] The mixing blade comprises a mixing blade body and at least one mixing rod, and the mixing rod is arranged obliquely toward the side wall of the mixing barrel.
[0010] In a preferred embodiment, the angle between the first dispersing blade and the dispersing blade body is 0-60°, and the angle between the second dispersing blade and the dispersing blade body is 0-60°;
[0011] The angles between the first dispersing blades and the dispersing blade body are the same or different; the angles between the second dispersing blades and the dispersing blade body are the same or different;
[0012] The dispersing blades include 3-10 of the first dispersing blades and 3-10 of the second dispersing blades.
[0013] In a preferred embodiment, in a plane perpendicular to the axial direction of the stirring drive shaft, the projection of the first dispersing blade and the projection of the second dispersing blade are both rectangular;
[0014] The dispersing knife body is also provided with a dispersing knife mounting hole and a plurality of material through holes. The dispersing knife mounting hole is used for fixed connection with the stirring drive shaft, and the plurality of material through holes are arranged at intervals along the circumference of the dispersing knife mounting hole.
[0015] In a preferred embodiment, the angle between the spiral blade and the horizontal direction is 0-45°; the spiral cutter includes 2-6 spiral blades; the spiral cutter body is also provided with a spiral cutter mounting hole, and the spiral cutter mounting hole is used to be fixedly connected to the stirring drive shaft.
[0016] In a preferred embodiment, both the first side surface and the second side surface are arc surfaces, and the length of the first side surface is greater than the length of the second side surface.
[0017] In a preferred embodiment, the angle between the gathering blade and the horizontal direction is 0-45°; the gathering knife includes 2-6 gathering blades; the gathering knife body is also provided with a gathering knife mounting hole, and the gathering knife mounting hole is used to be fixedly connected to the stirring drive shaft.
[0018] In a preferred embodiment, in a plane perpendicular to the axial direction of the stirring drive shaft, a plurality of the spiral blades and a plurality of the gathering blades are arranged alternately.
[0019] In a preferred embodiment, the mixing knife includes 1-6 mixing rods, and the mixing rods are arranged on the first side of the mixing knife body; a connecting column is provided on the second side of the mixing knife body, and a fixing hole is provided at the end of the stirring drive shaft, and the connecting column is used to be inserted into the fixing hole.
[0020] The present application provides a tool for a dry powder high-speed mixing device, which is used to be installed in a mixing barrel of the powder mixing device, and includes a dispersing knife, a spiral knife, a gathering knife and a mixing knife arranged at intervals along the axial direction of a stirring drive shaft, wherein the dispersing knife is arranged close to the bottom wall of the mixing barrel, and the mixing knife is arranged close to the top wall of the mixing barrel; the dispersing knife includes a dispersing knife body, a plurality of first dispersing blades and a plurality of second dispersing blades, wherein the plurality of first dispersing blades and the plurality of second dispersing blades are arranged at staggered intervals along the circumference of the dispersing knife body, the first dispersing blade and the second dispersing blade are both inclined to the dispersing knife body, and the inclination directions of the first dispersing blade and the second dispersing blade are opposite; the spiral knife includes a spiral knife body and a plurality of spiral blades, wherein the plurality of spiral blades are arranged along the circumference of the spiral knife body The spiral blades are arranged at circumferential intervals, and are inclined toward the top wall of the mixing barrel; in a plane perpendicular to the axial direction of the stirring drive shaft, the projection of the spiral blade is triangular, and along the rotation direction of the spiral blade, the spiral blade includes a first side surface and a second side surface opposite to each other, wherein the first side surface is located in front of the rotation direction of the spiral blade, and the height of the first side surface is lower than the height of the second side surface; the gathering knife includes a gathering knife body and a plurality of gathering blades, and the plurality of gathering blades are arranged at circumferential intervals along the gathering knife body, and the gathering blades are inclined toward the top wall of the mixing barrel; in a plane perpendicular to the axial direction of the stirring drive shaft, the projection of the gathering blade is trapezoidal; the mixing knife includes a mixing knife body and at least one mixing rod, and the mixing rod is inclined toward the side wall of the mixing barrel. The tool of the present application can better stir the material at the bottom of the material barrel through the first dispersing blade and the second dispersing blade that are obliquely set and staggered on the bottom dispersing blade, so that the material rises and falls along the first dispersing blade and the second dispersing blade in a wave-like motion, which is beneficial to better disperse the material; the multiple spiral blades on the spiral knife can make the material rise in a spiral manner, so that the material at the bottom of the mixing barrel and the material at the top of the mixing barrel are better mixed; the spirally rising material can be accumulated toward the stirring drive shaft by the gathering knife, and the gathering knife can also drive the material to rise to a certain height; the accumulated materials are stirred and mixed by the mixing knife, thereby improving the mixing uniformity of the materials in the mixing barrel, which is beneficial to improving the quality of the prepared battery electrodes. BRIEF DESCRIPTION OF THE DRAWINGS
[0021] In order to more clearly illustrate the technical solutions in the embodiments of the present application or the related technologies, the following is a brief introduction to the drawings required for use in the embodiments or the related technical descriptions. 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.
[0022] Figure 1 An axonometric diagram of a powder mixing device provided in one embodiment of the present application;
[0023] Figure 2A simplified structural diagram of a mixing barrel, a stirring device, a wall scraping device and an auxiliary wall scraping device provided in another embodiment of the present application;
[0024] Figure 3 A top view of a dispersing knife provided in one embodiment of the present application;
[0025] Figure 4 A front view of a dispersing knife provided in one embodiment of the present application;
[0026] Figure 5 A top view of a spiral cutter provided in one embodiment of the present application;
[0027] Figure 6 A front view of a spiral cutter provided in one embodiment of the present application;
[0028] Figure 7 A top view of a material gathering knife provided in one embodiment of the present application;
[0029] Figure 8 A front view of a gathering knife provided in one embodiment of the present application;
[0030] Fig. 9 A front view of a mixing knife provided in one embodiment of the present application;
[0031] Fig.10 A front view of a mixing knife provided in another embodiment of the present application.
[0032] Reference numerals:
[0033] 10- housing; 11- drive housing; 12- control panel; 13- emergency stop button;
[0034] 100-mixing barrel; 110-discharging pipe; 120-protective air pipe; 130-temperature detection device;
[0035] 200-stirring device; 210-stirring drive member; 220-stirring drive shaft; 230-cutter; 231-dispersing knife; 2311-dispersing knife body; 23111-dispersing knife mounting hole; 23112-material through hole; 2312-first dispersing blade; 2313-second dispersing blade; 232-spiral knife; 2321-spiral knife body; 23211-spiral knife mounting hole; 2322-spiral blade; 23221-first side; 23222-second side; 233-aggregating knife; 2331-aggregating knife body; 23311-aggregating knife mounting hole; 2332-aggregating blade; 234-mixing knife; 2341-mixing knife body; 2342-mixing rod; 2343-connecting column. DETAILED DESCRIPTION
[0036] In order to make the purpose, technical solutions and advantages of the embodiments of the present application clearer, the technical solutions in the embodiments of the present application will be clearly and completely described below in combination with the drawings in the embodiments of the present application. Obviously, the described embodiments are only part of the embodiments of the present application, not all of the embodiments.
[0037] Based on the embodiments in this application, all other embodiments obtained by ordinary technicians in this field without creative work are within the scope of protection of this application. In the absence of conflict, the following embodiments and features in the embodiments can be combined with each other.
[0038] As described in the background technology, when the dry process is used to prepare the pole piece in the scheme of the related technology, the material is prone to uneven mixing in the powder mixing equipment, which may affect the quality of the pole piece. After research, it is found that one of the reasons for the above problem is that the tool in the related technology includes a stirring drive shaft and a plurality of blades arranged on the stirring drive shaft, and the plurality of blades are arranged at intervals in the vertical direction, and the blades on each layer are generally arranged in the horizontal direction. When the stirring drive shaft rotates, it drives the plurality of blades to rotate synchronously, thereby stirring the material in the horizontal direction. Due to the different characteristics of different powder materials, it is easy to produce uneven mixing when the powders are mixed, which may affect the quality of the pole piece. For example, when graphite, lithium iron phosphate, polytetrafluoroethylene and high nickel unit are used as raw materials to prepare battery pole pieces, due to the different characteristics of different powder raw materials such as density and viscosity, during the mixing process, the raw material with high density will gradually deposit at the bottom of the mixing equipment, and the stirring device in the mixing equipment can only stir the material in the horizontal direction, thus causing the uneven mixing of the materials.
[0039] In view of this, the embodiment of the present application aims to provide a tool for a dry powder high-speed mixing equipment, through the first dispersing blade and the second dispersing blade that are obliquely arranged and staggered on the bottom dispersing blade, the material at the bottom of the material barrel can be better stirred, so that the material rises and falls along the first dispersing blade and the second dispersing blade in a wave-like motion, which is conducive to better dispersing the material; the multiple spiral blades on the spiral knife can make the material rise in a spiral manner, so that the material at the bottom of the mixing barrel and the material at the top of the mixing barrel are better mixed; the spirally rising material can be accumulated toward the stirring drive shaft by the gathering knife, and the gathering knife can also drive the material to rise to a certain height; the accumulated materials are stirred and mixed by the mixing knife, thereby improving the uniformity of the mixing of the materials in the mixing barrel, which is conducive to improving the quality of the prepared battery electrodes.
[0040] The contents of the embodiments of the present application will be described in detail below in conjunction with the accompanying drawings so that those skilled in the art can understand the contents of the present application in more detail.
[0041] Please refer to Figure 1-Figure 10This embodiment provides a powder mixing device, which is suitable for mixing powder raw materials, and is particularly suitable for mixing powder raw materials constituting battery pole pieces. The powder mixing device includes:
[0042] The mixing barrel 100 has a cavity formed inside for containing materials to be mixed. For example, the shape of the mixing barrel 100 can be set as needed, such as a cylindrical or prism shape, etc. The material of the mixing barrel 100 can also be selected as needed, such as stainless steel, etc.
[0043] Exemplarily, the inner wall of the mixing barrel 100 is provided with a first wear-resistant coating, and the first wear-resistant coating includes a tungsten carbide layer, and the tungsten carbide coating can be prepared on the inner wall of the mixing barrel 100 by physical vapor deposition (PVD), chemical vapor deposition (CVD), etc. By providing the first wear-resistant coating on the inner wall of the mixing barrel 100, the wear resistance of the mixing barrel 100 can be significantly improved, the wear can be effectively reduced, and the service life can be extended. It should be noted that the first wear-resistant coating in this embodiment can also be selected from other coatings such as titanium tungsten coating, aluminum titanium alloy coating, chromium nitride coating, etc.
[0044] The stirring device 200 is disposed in the mixing barrel 100 and is used to stir the materials in the mixing barrel 100. Exemplarily, the stirring device 200 may include a plurality of knives 230 (hereinafter referred to as knives 230) suitable for dry powder high-speed mixing equipment, and the materials in the mixing barrel are mixed by rotating and / or cutting the plurality of knives 230.
[0045] Exemplarily, the tool 230 may be provided with a second wear-resistant coating, the second wear-resistant coating comprising a tungsten carbide layer, and the tungsten carbide coating may be prepared on the surface of the tool 230 by physical vapor deposition (PVD), chemical vapor deposition (CVD), etc. By providing the second wear-resistant coating on the surface of the tool 230, the wear resistance of the tool 230 may be significantly improved, the wear may be effectively reduced, and the service life may be extended. It should be noted that the second wear-resistant coating in this embodiment may also be selected from other coatings such as titanium tungsten coating, aluminum titanium alloy coating, and chromium nitride coating.
[0046] Please continue to refer to Figure 1-Figure 2 The stirring device 200 of this embodiment includes a stirring driving member 210, a stirring driving shaft 220 and a cutter 230. The cutter 230 is disposed in the mixing barrel 100. The output end of the stirring driving member 210 is connected to the stirring driving shaft 220. The stirring driving shaft 220 penetrates the mixing barrel 100 and is connected to the cutter 230, thereby driving the cutter 230 to rotate in the mixing barrel 100 to evenly mix the materials in the mixing barrel 100. Exemplarily, the stirring driving member 210 may be, for example, a motor or the like.
[0047] Exemplarily, the portion of the stirring drive member 210 located in the mixing barrel 100 may be provided with a third wear-resistant coating, and the third wear-resistant coating includes a tungsten carbide layer, and the tungsten carbide coating may be prepared on the surface of the stirring drive member 210 by physical vapor deposition (PVD), chemical vapor deposition (CVD), etc. By providing the third wear-resistant coating on the surface of the stirring drive member 210, the wear resistance of the stirring drive member 210 can be significantly improved, wear can be effectively reduced, and the service life can be extended. It should be noted that the third wear-resistant coating in this embodiment may also be other coatings such as titanium tungsten coating, aluminum titanium alloy coating, and chromium nitride coating.
[0048] Please continue to refer to Figure 2-Figure 10 Specifically, the tool 230 of this embodiment includes a dispersing knife 231, a spiral knife 232, a gathering knife 233 and a mixing knife 234 which are arranged in sequence along the axial direction of the stirring drive shaft 220, wherein the dispersing knife 231 is arranged close to the bottom wall of the mixing barrel 100, and the mixing knife 234 is arranged close to the top wall of the mixing barrel 100.
[0049] Exemplarily, the dispersion knife 231 includes a dispersion knife body 2311, a plurality of first dispersion blades 2312 and a plurality of second dispersion blades 2313, the plurality of first dispersion blades 2312 and the plurality of second dispersion blades 2313 are arranged at staggered intervals along the circumference of the dispersion knife body 2311, the first dispersion blades 2312 and the second dispersion blades 2313 are both inclined to the dispersion knife body 2311, and the inclination directions of the first dispersion blades 2312 and the second dispersion blades 2313 are opposite.
[0050] Through the above structure, the dispersing knife 231 of this embodiment can utilize the first dispersing blade 2312 and the second dispersing blade 2313 which are set obliquely and staggered to better stir the material at the bottom of the mixing barrel 100, so that the material moves up and down along the first dispersing blade 2312 and the second dispersing blade 2313 in a wave-like motion, which is conducive to better dispersing the material.
[0051] The spiral cutter 232 includes a spiral cutter body 2321 and a plurality of spiral blades 2322, wherein the plurality of spiral blades 2322 are arranged at intervals along the circumference of the spiral cutter body 2321, and the spiral blades 2322 are arranged obliquely toward the top wall of the mixing barrel 100. In a plane perpendicular to the axial direction of the stirring drive shaft 220, the projection of the spiral blade 2322 is triangular. Along the rotation direction of the spiral cutter 232, the spiral blade 2322 includes a first side surface 23221 and a second side surface 23222 opposite to each other, wherein the first side surface 23221 is located in front of the rotation direction of the spiral cutter 232, and the height of the first side surface 23221 is lower than the height of the second side surface 23222.
[0052] Through the above structure, when the spiral blade 232 of this embodiment rotates, the lower first side 23221 of the spiral blade 2322 first contacts the material, so that the material moves along the spiral blade 2322 from the lower first side 23221 to the higher second side 23222 to lift the material. Since the spiral blade 2322 is tilted toward the top wall of the mixing barrel 100, the spiral blade 2322 generates a spiral vortex when rotating, driving the material to rise in a spiral manner, thereby facilitating better mixing of the material at the bottom of the mixing barrel 100 with the material at the top of the mixing barrel 100, which is useful for improving the uniformity of the material mixing in the mixing barrel 100.
[0053] The material gathering knife 233 includes a material gathering knife body 2331 and a plurality of material gathering blades 2332. The plurality of material gathering blades 2332 are arranged at intervals along the circumference of the material gathering knife body 2331. The material gathering blades 2332 are inclined toward the top wall of the mixing barrel 100. In a plane perpendicular to the axial direction of the stirring drive shaft 220, the projection of the material gathering blades 2332 is trapezoidal.
[0054] Through the above structure, the material gathering blade 2332 of this embodiment can accumulate materials toward the stirring drive shaft 220 when rotating. Compared with the triangular spiral blade 2322, the trapezoidal material gathering blade 2332 can also drive the material to rise to a certain height, thereby further lifting the material to facilitate the mixing of the material. However, the lifting force of the material gathering blade 2332 is smaller than the lifting force of the spiral blade 2322 to prevent the material from being lifted too high.
[0055] The mixing blade 234 includes a mixing blade body 2341 and at least one mixing rod 2342 . The mixing rod 2342 is arranged to be inclined toward the side wall of the mixing barrel 100 .
[0056] Through the above structure, the mixing rod 2342 of this embodiment can stir and mix the accumulated materials when rotating, thereby improving the mixing uniformity of the materials in the mixing barrel 100, which is beneficial to improving the quality of the prepared battery electrode.
[0057] Please continue to refer to Figure 3 and Figure 4 For example, in this embodiment, the angle between the first dispersing blade 2312 and the dispersing blade body 2311 is 0-60°, and the angle between the second dispersing blade 2313 and the dispersing blade body 2311 is 0-60°.
[0058] The angles between the multiple first dispersing blades 2312 and the dispersing blade body 2311 are the same or different; the angles between the multiple second dispersing blades 2313 and the dispersing blade body 2311 are the same or different; the specific settings can be made as needed.
[0059] Optionally, the dispersing blade 231 of this embodiment includes 3-10 first dispersing blades 2312 and 3-10 second dispersing blades 2313 .
[0060] Further, in a plane perpendicular to the axial direction of the stirring drive shaft 220, the projection of the first dispersing blade 2312 and the projection of the second dispersing blade 2313 are both rectangular. The dispersing blade body 2311 is also provided with a dispersing blade mounting hole 23111 and a plurality of material through holes 23112. The dispersing blade mounting hole 23111 is used for fixed connection with the stirring drive shaft 220. The plurality of material through holes 23112 are arranged at intervals along the circumference of the dispersing blade mounting hole 23111. The material through holes 23112 can allow the material to pass through the dispersing blade body 2311, thereby preventing the material from being deposited on the dispersing blade body 2311.
[0061] Please continue to refer to Figure 5 and Figure 6 , illustratively, the angle between the spiral blade 2322 of this embodiment and the horizontal direction is 0-45°; the spiral knife 232 includes 2-6 spiral blades 2322; the spiral knife body 2321 is also provided with a spiral knife mounting hole 23211, and the spiral knife mounting hole 23211 is used to be fixedly connected to the stirring drive shaft 220.
[0062] Furthermore, in this embodiment, the first side surface 23221 and the second side surface 23222 are both arc surfaces, so that the cutting force of the spiral blade 2322 on the material can be reduced. The length of the first side surface 23221 is greater than the length of the second side surface 23222, so as to better lift the material.
[0063] Please continue to refer to Figure 7 and Figure 8 , illustratively, the angle between the gathering blade 2332 of this embodiment and the horizontal direction is 0-45°; the gathering knife 233 includes 2-6 gathering blades 2332; the gathering knife body 2331 is also provided with a gathering knife mounting hole 23311, and the gathering knife mounting hole 23311 is used to be fixedly connected with the stirring drive shaft 220.
[0064] Optionally, in a plane perpendicular to the axial direction of the stirring drive shaft 220, the plurality of spiral blades 2322 and the plurality of material gathering blades 2332 of this embodiment are arranged alternately. When the stirring drive shaft 220 rotates, the plurality of spiral blades 2322 and the plurality of material gathering blades 2332 arranged alternately can generate a more complex flow pattern, so that the material generates multi-dimensional convection and mixing in the mixing barrel 100, thereby improving the uniformity of mixing.
[0065] Please continue to refer to Fig. 9 and Fig.10, illustratively, the mixing blade 234 of this embodiment includes 1-6 mixing rods 2342, and the mixing rods 2342 are arranged on the first side of the mixing blade body 2341; a connecting column 2343 is provided on the second side of the mixing blade body 2341, and a fixing hole is provided at the end of the stirring drive shaft 220, and the connecting column 2343 is used to be inserted into the fixing hole.
[0066] Optionally, the mixing blade body 2341 of the present embodiment may be in a hemispherical, conical, cubic or other structure, and may be specifically configured according to actual needs.
[0067] Please continue to refer to Figure 1 For example, the powder mixing device may include a housing 10, and the housing 10 may be fixed to the ground by means of a support foot or other structure provided at the bottom. The mixing barrel 100 may be provided outside the housing 10. A drive housing 11 may be provided below the mixing barrel 100, and the drive housing 11 may be connected and fixed to the mixing barrel 100 by means of a flange or other connecting member, and a drive member and part of a transmission member of the stirring device 200 may be provided in the drive housing 11, thereby protecting the drive member and the transmission member and extending their service life.
[0068] The mixing barrel 100 of the present embodiment is also connected to a discharge pipe 110, and the discharge pipe 110 is used to discharge the uniformly mixed materials.
[0069] In this embodiment, the mixing barrel 100 is also connected to a protective gas pipe 120, which is used to connect to a protective gas source. For example, the protective gas source may be a nitrogen source, and nitrogen introduced into the mixing barrel 100 may serve as protective gas when mixing materials.
[0070] Furthermore, the mixing barrel 100 of the present embodiment is also provided with a temperature detection device 130, and the temperature detection device 130 is used to measure the temperature of the material in the mixing barrel 100, so that the operator can grasp the mixing temperature in time.
[0071] In addition, the housing 10 of this embodiment is also provided with a control panel 12 and an emergency stop button 13. The control panel 12 is connected to the main components of the powder mixing device, and can display the main parameters of the powder mixing device, and facilitate the operator to adjust and control. The emergency stop button 13 can be set on the main circuit of the powder mixing device, and control the on and off of the main circuit to achieve emergency stop in an emergency state.
[0072] In the description of the present application, it should be understood that the terms "center", "longitudinal", "lateral", "length", "width", "thickness", "up", "down", "front", "back", "left", "right", "vertical", "horizontal", "top", "bottom", "inside", "outside", "clockwise", "counterclockwise", "axial", "radial", "circumferential" and the like indicate orientations or positional relationships based on the orientations or positional relationships shown in the accompanying drawings, and are only for the convenience of describing the present 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.
[0073] In this application, unless otherwise clearly specified and limited, the terms "installed", "connected", "connected", "fixed" and the like should be understood in a broad sense, for example, it can be a fixed connection, a detachable connection, or an integral connection; it can be directly connected or indirectly connected 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.
[0074] It should be noted that in the description of this application, the terms "first" and "second" are only used to facilitate the description of different components, and cannot be understood as indicating or implying a sequential relationship, relative importance, or implicitly indicating the number of the indicated technical features. Therefore, the features defined as "first" and "second" may explicitly or implicitly include at least one of the features.
[0075] The various embodiments or implementation methods in the present application are described in a progressive manner, and each embodiment focuses on the differences from other embodiments. The same or similar parts between the various embodiments can be referenced to each other.
[0076] In the description of the present application, the description with reference to the terms "one embodiment", "some embodiments", "illustrative embodiments", "examples", "specific examples", or "some examples" means that the specific features, structures, materials, or characteristics described in conjunction with the embodiments or examples are included in at least one embodiment or example of the present application. In the present application, the schematic representations of the above terms do not necessarily refer to the same embodiment or example. Moreover, the specific features, structures, materials, or characteristics described may be combined in any one or more embodiments or examples in a suitable manner.
[0077] 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 tool for a dry powder high-speed mixing device, used to be installed in a mixing barrel of the powder mixing device, characterized in that: It comprises a dispersing knife, a spiral knife, a gathering knife and a mixing knife which are arranged at intervals along the axial direction of the stirring drive shaft, wherein the dispersing knife is arranged close to the bottom wall of the mixing barrel, and the mixing knife is arranged close to the top wall of the mixing barrel; The dispersing knife comprises a dispersing knife body, a plurality of first dispersing blades and a plurality of second dispersing blades, wherein the plurality of first dispersing blades and the plurality of second dispersing blades are arranged at staggered intervals along the circumference of the dispersing knife body, the first dispersing blades and the second dispersing blades are both inclined to the dispersing knife body, and the inclination directions of the first dispersing blades and the second dispersing blades are opposite; The spiral cutter comprises a spiral cutter body and a plurality of spiral blades, wherein the plurality of spiral blades are arranged at intervals along the circumference of the spiral cutter body, and the spiral blades are arranged obliquely toward the top wall of the mixing barrel; in a plane perpendicular to the axial direction of the stirring drive shaft, the projection of the spiral blade is triangular, and along the rotation direction of the spiral cutter, the spiral blade comprises a first side surface and a second side surface opposite to each other, wherein the first side surface is located in front of the rotation direction of the spiral cutter, and the height of the first side surface is lower than the height of the second side surface; The material gathering knife comprises a material gathering knife body and a plurality of material gathering blades, wherein the plurality of material gathering blades are arranged at intervals along the circumference of the material gathering knife body, and the material gathering blades are arranged obliquely toward the top wall of the mixing barrel; in a plane perpendicular to the axial direction of the stirring drive shaft, the projection of the material gathering blades is trapezoidal; The mixing knife comprises a mixing knife body and at least one mixing rod, and the mixing rod is arranged obliquely toward the side wall of the mixing barrel.
2. The tool of the dry powder high-speed mixing equipment according to claim 1, characterized in that: The angle between the first dispersing blade and the dispersing blade body is 0-60°, and the angle between the second dispersing blade and the dispersing blade body is 0-60°; The angles between the first dispersing blades and the dispersing blade body are the same or different; the angles between the second dispersing blades and the dispersing blade body are the same or different; The dispersing blades include 3-10 of the first dispersing blades and 3-10 of the second dispersing blades.
3. The tool of the dry powder high-speed mixing equipment according to claim 2, characterized in that: In a plane perpendicular to the axial direction of the stirring drive shaft, the projection of the first dispersing blade and the projection of the second dispersing blade are both rectangular; The dispersing knife body is also provided with a dispersing knife mounting hole and a plurality of material through holes. The dispersing knife mounting hole is used for fixed connection with the stirring drive shaft, and the plurality of material through holes are arranged at intervals along the circumference of the dispersing knife mounting hole.
4. The tool for the dry powder high-speed mixing device according to claim 1, characterized in that: The angle between the spiral blade and the horizontal direction is 0-45°; the spiral knife includes 2-6 spiral blades; the spiral knife body is also provided with a spiral knife mounting hole, and the spiral knife mounting hole is used for fixed connection with the stirring drive shaft.
5. The cutter of the dry powder high-speed mixing equipment according to claim 4, characterized in that: The first side surface and the second side surface are both arc surfaces, and the length of the first side surface is greater than the length of the second side surface.
6. The cutter of the dry powder high-speed mixing equipment according to claim 1, characterized in that: The angle between the material gathering blade and the horizontal direction is 0-45°; the material gathering knife includes 2-6 material gathering blades; the material gathering knife body is also provided with a material gathering knife mounting hole, and the material gathering knife mounting hole is used for fixed connection with the stirring drive shaft.
7. The cutter of the dry powder high-speed mixing equipment according to claim 6, characterized in that: In a plane perpendicular to the axial direction of the stirring drive shaft, the plurality of spiral blades and the plurality of gathering blades are arranged alternately.
8. The cutter of the dry powder high-speed mixing equipment according to claim 1, characterized in that: The mixing knife includes 1-6 mixing rods, which are arranged on the first side of the mixing knife body; a connecting column is provided on the second side of the mixing knife body, and a fixing hole is provided at the end of the stirring drive shaft, and the connecting column is used to be inserted into the fixing hole.