Mechanical micro-powder machine

Abstract

The utility model provides a mechanical micro-powder machine, and belongs to the technical field of crushing devices. The crusher comprises a crushing chamber assembly and a grading chamber assembly which is arranged above the crushing chamber assembly and communicates with the crushing chamber assembly; the crushing chamber assembly comprises a crushing chamber, a rotating disc assembly and a rotating disc assembly, the crushing hammers are arranged on the periphery of the movable disc assembly; the toothed plate is arranged on the inner wall of the crushing cylinder and is used for grinding materials; the grading chamber assembly comprises a grading chamber, and a grading wheel is arranged in the grading chamber and used for conducting coarse and fine separation on materials. The first driving device is used for driving the movable disc assembly to rotate and driving the crushing hammers to crush the materials; the second driving device is used for driving the grading wheel to rotate; the grading wheel is driven to carry out coarse and fine separation on the materials; and the exhaust pipe is communicated with the grading chamber and is used for discharging qualified fine powder. The utility model adopts the built-in grading device, is mainly a novel combined machine integrating the functions of crushing and grading, and has the characteristics of compact structure, convenience in installation and the like.

Description

Technical Field

[0001] This utility model relates to the field of pulverizing equipment technology, and in particular to a pulverizer, especially a micro pulverizer with a built-in grading system. It is mainly a combined machine that integrates pulverizing and grading, and its specific model is WFJ1000 mechanical micro pulverizer, where W is a horizontal grading wheel, F refers to a machine with a grading device, J refers to a mechanical pulverizer, and 1000 refers to the inner diameter of the pulverizing chamber (in mm). Background Technology

[0002] During ultrafine grinding, as the grinding time increases, the particle size of the material gradually decreases; simultaneously, the specific surface area and surface energy of the material gradually increase. Consequently, the tendency for fine particles to agglomerate also gradually intensifies. After a certain period, a dynamic equilibrium is reached between ultrafine grinding and powder agglomeration. In this state, even if the grinding time is further extended, it is difficult to grind the product into a finer state; in some cases, the apparent particle size of the product may even become coarser. To solve this problem, an effective measure is to separate qualified fine powder in a timely manner. Therefore, ultrafine grinding equipment should be equipped with corresponding high-efficiency fine classification equipment; otherwise, it is difficult to achieve the purpose of high-efficiency ultrafine grinding. According to the different combinations of the classifier and the grinder, classification systems can be divided into built-in and external classification systems. External classification systems occupy a larger area, and the material must pass through the pipe between the grinder and the classifier to enter the classifier. Fine powder is not easily separated in time, thus re-agglomeration occurs, which is detrimental to classification. Utility Model Content

[0003] In view of this, in order to overcome the above-mentioned shortcomings of the external grading system in the existing technology, this utility model adopts an internal grading system, which is a new type of combined machine that integrates crushing and grading, making it compact in structure and easy to install.

[0004] To achieve the above objectives, this utility model provides the following technical solution:

[0005] A micro powder mill includes a pulverizing chamber assembly and a classifying chamber assembly disposed above and connected to the pulverizing chamber assembly;

[0006] The pulverizing chamber assembly includes:

[0007] The grinding chamber is equipped with a moving disc assembly.

[0008] A crushing hammer, which is disposed on the outer periphery of the moving disc assembly, is used to crush materials;

[0009] A toothed plate, which is disposed on the inner wall of the grinding chamber, is used to grind materials;

[0010] The first driving device is used to drive the rotating disk assembly to rotate, thereby driving the crushing hammer to crush the material;

[0011] The graded chamber assembly includes:

[0012] The grading chamber contains a grading wheel assembly;

[0013] A classifying wheel, which is disposed on the classifying wheel assembly, is used to separate materials into coarse and fine parts;

[0014] The second driving device is used to drive the grading wheel assembly to rotate, thereby driving the grading wheel to classify the material.

[0015] An exhaust pipe, which is connected to the grading chamber, is used to discharge qualified fine powder.

[0016] Preferably, it also includes a collection device;

[0017] The collection device includes a cyclone separator and a pulse bag filter connected in sequence to the exhaust pipe.

[0018] Preferably, the grading chamber is provided with a feed inlet.

[0019] Preferably, the material is conveyed to the feed port via a screw feeder.

[0020] Preferably, a first air seal is provided between the grading wheel and the exhaust pipe to prevent coarse powder from entering the exhaust pipe.

[0021] Preferably, the rolling bearing in the grading motor of the grading wheel assembly is equipped with an air seal protection device to prevent micro powder from entering the bearing.

[0022] Preferably, the grading wheel is a horizontal grading wheel. Compared with the prior art, this invention has the following advantages:

[0023] The micro powder machine provided by this utility model is a new type of combined machine that integrates grading and pulverizing functions, making it compact and easy to install.

[0024] The micro powder mill provided by this utility model has materials fed into the graded chamber through an inclined tube at the feeding port at the top of the graded chamber. It has pre-grading and inspection grading functions. Therefore, micro powder that meets the fineness requirements in the raw materials can be directly separated from the graded chamber without passing through the crushing chamber, avoiding over-crushing. Coarse powder is automatically circulated back into the machine and repeatedly crushed, which improves the crushing efficiency and reduces energy consumption.

[0025] This invention is applicable to industries such as chemical, mining, building materials, electronics, pharmaceuticals, coatings, dyes, light industry, food, metallurgy, and feed. It can perform dry crushing and grading of various organic and inorganic substances. Attached Figure Description

[0026] Figure 1 This is the front view of the micronizer of this utility model;

[0027] Figure 2 This is a left view of the micronizer of this utility model;

[0028] Figure 3 This is a top view of the micronizer of this utility model;

[0029] Figure 4 This is the main view of the grading chamber component;

[0030] Figure 5 Left view (section) of the grading chamber assembly;

[0031] Figure 6 A top view of the grading chamber assembly;

[0032] Figure 7 This is a front view of the pulverizing chamber assembly;

[0033] Figure 8 Left view (section) of the pulverizing chamber assembly;

[0034] Figure 9 Top view of the pulverizing chamber assembly;

[0035] Figure 10 This is the front view (section) of the moving disk assembly.

[0036] Figure 11 This is a front view (section) of the grading wheel assembly.

[0037] In the diagram, 1. Crushing chamber assembly, 11. Crushing chamber, 12. Moving disc assembly, 13. Crushing hammer, 14. Toothed plate, 15. First drive unit, 151. Crushing motor, 152. Crushing motor pulley, 153. Crushing main shaft pulley, 16. Coupling, 17. Crushing bearing housing assembly, 2. Classification chamber assembly, 21. Classification chamber, 22. Classification wheel, 23. Second drive unit, 231. Classification motor, 232. Classification motor pulley, 233. Classification main shaft pulley, 234. Belt cover, 24. Classification bearing housing assembly, 25. Classification wheel seat, 26. Exhaust pipe, 27. Classification chamber cover, 3. Frame, 4. High-pressure vortex air pump. Detailed Implementation

[0038] The technical solutions of the present utility model will be clearly and completely described below with reference to the accompanying drawings of the embodiments of the present utility model. Obviously, the described embodiments are only some embodiments of the present utility model, and not all embodiments. All other embodiments obtained by those skilled in the art based on the embodiments of the present utility model without creative effort are within the protection scope of the present utility model.

[0039] In the description of this utility model, it should be noted that the terms "upper," "lower," "inner," "outer," "top / bottom," etc., indicating the orientation or positional relationship are based on the orientation or positional relationship shown in the accompanying drawings, and are only for the convenience of describing this utility model and simplifying the description, and do not indicate or imply that the device or element referred to must have a specific orientation, or be constructed and operated in a specific orientation, and therefore should not be construed as a limitation of this utility model. Furthermore, the terms "first" and "second" are used for descriptive purposes only and should not be construed as indicating or implying relative importance.

[0040] In the description of this utility model, it should be noted that, unless otherwise explicitly specified and limited, the terms "installed," "equipped with," "sleeved / connected," "connected," etc., should be interpreted broadly. For example, "connection" can be a fixed connection, a detachable connection, or an integral connection; it can be a mechanical connection or an electrical connection; it can be a direct connection or an indirect connection through an intermediate medium; it can be a connection within two components. Those skilled in the art can understand the specific meaning of the above terms in this utility model based on the specific circumstances.

[0041] like Figure 1 As shown, this utility model provides a micro powder mill, including a pulverizing chamber assembly 1 and a grading chamber assembly 2 disposed above the pulverizing chamber assembly 1 and connected to the pulverizing chamber assembly 1;

[0042] The pulverizing chamber assembly 1 includes:

[0043] The grinding chamber 11 is provided with a moving disk assembly 12, wherein the moving disk assembly 12 is preferably disposed on the grinding bearing seat assembly 17 of the grinding chamber assembly 1;

[0044] A crushing hammer 13 is disposed on the outer periphery of the moving disc assembly 12 for crushing materials. The crushing hammer 13 is preferably an impact hammer and is preferably made of a highly wear-resistant material to improve its service life.

[0045] The toothed plate 14 is disposed on the inner wall of the grinding chamber 11 for grinding materials. The toothed plate 14 is preferably made of a highly wear-resistant material, which improves its service life. The grinding cylinder constitutes the grinding chamber 11.

[0046] The first driving device 15 is used to drive the rotating disk assembly 12 to rotate, thereby driving the crushing hammer 13 to crush the material.

[0047] The graded chamber assembly 2 includes:

[0048] Grading chamber 21, which contains a grading wheel assembly;

[0049] The classifying wheel 22 is disposed on the sand of the classifying wheel assembly and is used to separate the material into coarse and fine parts. Preferably, the classifying wheel 22 is disposed on the classifying bearing seat assembly 24 and the classifying bearing seat assembly 24 is connected to the classifying wheel seat 25.

[0050] The second driving device 23 is used to drive the grading wheel assembly to rotate, thereby driving the grading wheel 22 to classify the material.

[0051] The exhaust pipe 26 is connected to the grading chamber 21 and is used to discharge qualified fine powder.

[0052] The micronizer provided by this utility model adopts a built-in grading system, and is mainly a combined machine that integrates crushing and grading. Qualified fine powder can be graded inside the machine and then discharged outside, avoiding over-crushing. Coarse powder is automatically circulated back inside the machine for repeated crushing, improving crushing efficiency.

[0053] In this invention, the crushing chamber component 1 is preferably an impact crusher, which has a large crushing capacity per unit power, resulting in low equipment operating costs, reasonable system configuration, and low initial investment cost.

[0054] In this invention, a water jacket cooling system is preferably selected to cool the grinding chamber. Cooling via circulating tap water lowers the temperature inside the grinding chamber, preventing temperature rise that could alter the properties of the medicine or food. It also extends the machine's lifespan.

[0055] In this invention, the grading of powders of different fineness is achieved by controlling the rotation speed of the grading wheel 22. The specific rotation speed can be controlled according to actual needs.

[0056] In this utility model, the first driving device 15 preferably includes a crushing motor 151, a crushing motor pulley 152, a crushing main shaft pulley 153, and a coupling 16 disposed on the crushing bearing seat assembly. The crushing main shaft pulley 153 and the coupling 16 are connected, and the coupling 16 is connected to the moving disk assembly 12. The crushing motor 151 and the crushing main shaft pulley 153 are connected by a transmission belt (preferably a belt). The crushing motor 151 drives the main crushing shaft pulley 153 and the coupling 16 to rotate through the crushing motor pulley 152, thereby driving the moving disk assembly 12 to rotate and drive the crushing hammer 13 to crush the raw materials.

[0057] In this invention, the second driving device 23 preferably includes a classifying motor 231, a classifying motor pulley 232, and a classifying main shaft pulley 233, with the classifying main shaft pulley 233 located at one end of the classifying bearing housing assembly. The classifying motor 231 drives the classifying motor pulley 232 and the classifying main shaft pulley 233 to rotate via a transmission belt (preferably a belt), thereby driving the classifying wheel 22 to rotate.

[0058] This invention also includes a collection device;

[0059] The collection device includes a cyclone separator and a pulse bag filter connected in sequence to the exhaust pipe 26. The collection device not only recovers the exhaust gas from the material emissions but also maintains stable airflow within the system.

[0060] In this utility model, the grading chamber 21 is provided with a feed inlet, preferably the grading chamber cover 27 of the grading chamber 21 is provided with a feed inlet.

[0061] In this invention, the material is conveyed to the feed port by a screw feeder, preferably directly into the classification chamber through an inlet inclined tube. Therefore, the fine powder that meets the fineness requirements in the raw material can be directly separated from the classification chamber 21 without passing through the crushing chamber, avoiding over-crushing, improving crushing efficiency and reducing energy consumption.

[0062] In this invention, a first air seal is provided between the grading wheel 22 and the exhaust pipe 26 to prevent coarse powder from entering the exhaust pipe 26.

[0063] In this invention, the rolling bearing in the grading motor 231 of the grading wheel assembly is equipped with an air seal protection device to prevent micro powder from entering the bearing.

[0064] In this invention, the grading wheel is a horizontal grading wheel, which has the advantages of adjustable speed via a variable frequency motor, low wear, high grading accuracy, and easy particle size adjustment.

[0065] The micronizer provided by this utility model is located on the frame 3.

[0066] The working principle of this utility model is as follows: The raw material is conveyed to the classification chamber 21 by the screw feeder. The fine powder that meets the fineness requirements is directly discharged from the exhaust pipe 26, while the coarse powder that does not meet the requirements enters the crushing chamber for crushing. The coarse powder entering the crushing chamber 21 is crushed by the high-speed impact of the crushing hammer 13 and the grinding action of the toothed plate 14. The crushed material is then conveyed to the horizontal turbine classifier by the airflow of the high-pressure vortex air pump 4 for classification. The qualified fine powder is discharged from the exhaust pipe with the exhaust gas and then collected as product by the cyclone and the collection device. The coarse particles are returned to the crushing chamber for further crushing.

[0067] This invention features pre-grading and inspection grading functions. Qualified fine particles in the raw materials are directly discharged after grading, which helps improve pulverization efficiency. The built-in grading method not only ensures product fineness but also improves pulverization efficiency and reduces energy consumption.

[0068] The above are merely preferred embodiments of this utility model; however, the scope of protection of this utility model is not limited thereto. Any equivalent substitutions or modifications made by those skilled in the art within the scope of the technology disclosed in this utility model, based on the technical solution and its improved concept, should be included within the scope of protection of this utility model.

Claims

1. A micro powder machine, characterized in that, It includes a grinding chamber assembly and a classification chamber assembly disposed above and connected to the grinding chamber assembly; The pulverizing chamber assembly includes: The grinding chamber is equipped with a moving disc assembly. A crushing hammer, which is disposed on the outer periphery of the moving disc assembly, is used to crush materials; A toothed plate, which is disposed on the inner wall of the grinding chamber, is used to grind materials; The first driving device is used to drive the rotating disk assembly to rotate, thereby driving the crushing hammer to crush the material; The hierarchical chamber assembly includes: The grading chamber contains a grading wheel assembly; A classifying wheel, which is disposed on the classifying wheel assembly, is used to separate materials into coarse and fine parts; The second driving device is used to drive the grading wheel assembly to rotate, thereby driving the grading wheel to classify the material. An exhaust pipe, which is connected to the grading chamber, is used to discharge qualified fine powder.

2. A micro powder mill according to claim 1, characterized in that, It also includes a collection device; The collection device includes a cyclone separator and a pulse bag filter connected in sequence to the exhaust pipe.

3. A micronizer according to claim 1, characterized in that, The grading chamber is equipped with a feed inlet.

4. A micronizer according to claim 3, characterized in that, The material is conveyed to the feed port via a screw feeder.

5. A micronizer according to claim 1, characterized in that, A first air seal is provided between the grading wheel and the exhaust pipe to prevent coarse powder from entering the exhaust pipe.

6. A micronizer according to claim 1, characterized in that, The rolling bearing in the grading motor of the grading wheel assembly is equipped with an air seal protection device to prevent micro powder from entering the bearing.

7. A micronizer according to any one of claims 1-6, characterized in that, The grading wheel is a horizontal grading wheel.

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