Efficient grading device for superfine spherical powder

Abstract

The utility model relates to an efficient grading device for superfine spherical powder, which belongs to grading equipment and comprises a sorting mechanism, a bag collector and a fan. The sorting mechanism comprises a sorting cylinder, a sorting motor, a sorting impeller, a feeding pipe and a discharging pipe; a sorting impeller is installed in the sorting cylinder and driven by a sorting motor to rotate. A feeding pipe and a discharging pipe are arranged on the side face of the sorting cylinder, the feeding pipe is inserted into the coarse material cavity, an end opening of the feeding pipe right faces the sorting impeller, and the discharging pipe communicates with the fine material cavity. A first valve and a second valve are sequentially arranged at the bottom of the sorting cylinder from bottom to top; the at least two sorting mechanisms are connected in series; the airflow from bottom to top is generated in the sorting barrel under the action of the fan and the sorting impeller, then the superfine spherical powder is carried into the sorting barrel under the action of the airflow, and the superfine spherical powder with the large granularity is guided into the next sorting mechanism along with the airflow to be sorted under the action of the airflow. Therefore, the purpose of grading the superfine spherical powder is achieved by arranging a plurality of sorting mechanisms.

Description

Technical Field

[0001] This application relates to the field of grading equipment technology, and in particular to a high-efficiency grading device for ultrafine spherical powder. Background Technology

[0002] Ultrafine spherical powder is not only the foundation for the preparation of structural materials, but it is also a material with special functions. It is essential for many fields such as fine ceramics, electronic components, bioengineering, new printing materials, high-quality refractory materials, and materials related to fine chemicals. With the increasingly widespread application of ultrafine spherical powder in modern industry, powder classification is becoming more and more important in powder processing equipment.

[0003] Most existing grading equipment uses filters for grading, that is, screening materials by passing them through filters with different pore sizes. However, ultrafine spherical powders have very small particle sizes, and filters cannot achieve good grading results. Summary of the Invention

[0004] To solve or partially solve the problems existing in related technologies, this application provides a high-efficiency classification device for ultrafine spherical powder, which aims to solve the classification of ultrafine spherical powder.

[0005] Therefore, this application provides a high-efficiency classification device for ultrafine spherical powder, including a sorting mechanism, a bag filter, and a fan; the sorting mechanism includes a sorting cylinder, a sorting motor, a sorting impeller, a feed pipe, and a discharge pipe; the sorting impeller is rotatably mounted on the top of the sorting cylinder, and the sorting impeller is driven to rotate by the sorting motor; the sorting impeller divides the internal cavity of the sorting cylinder into a coarse material cavity and a fine material cavity; the feed pipe and the discharge pipe are provided on the side of the sorting cylinder; the feed pipe is inserted into the coarse material cavity, with its port facing the sorting impeller; the discharge pipe is connected to the fine material cavity; a first valve and a second valve are provided sequentially from bottom to top at the bottom of the sorting cylinder;

[0006] At least two sorting mechanisms are provided, connected in series with each other;

[0007] The first sorting mechanism is equipped with a feed hopper on its feed pipe, and the free end of the discharge pipe of the last sorting mechanism is connected to a bag filter dust collector, and the air outlet pipe of the bag filter dust collector is connected to a fan.

[0008] In some designs, a first air inlet is provided on the side wall of the sorting cylinder, and the height of the first air inlet is slightly lower than the port of the feed pipe.

[0009] In some designs, the inner wall of the sorting cylinder is provided with a first air collecting pipe that covers the first air supply port, and the first air collecting pipe is conical.

[0010] In some schemes, the side wall of the sorting cylinder is provided with a second air supplement opening below the first air supplement opening.

[0011] In some schemes, the side wall of the coarse material cavity is provided with a third air supplement opening, and the inner side wall of the sorting cylinder is provided with a second air collecting pipe covering the second air supplement opening, and the air outlet of the second air collecting pipe is opposite to the sorting impeller.

[0012] The technical scheme provided by the application can have the following beneficial effects:

[0013] The application generates an airflow from bottom to top in the sorting cylinder through the action of the fan and the sorting impeller, and then the superfine spherical powder is carried into the sorting cylinder under the action of the airflow. Under the action of the airflow, the superfine spherical powder with larger particle size is guided into the next sorting mechanism for sorting, so that multiple sorting mechanisms are arranged to achieve the purpose of grading the superfine spherical powder.

[0014] It should be understood that the above general description and the following detailed description are only exemplary and explanatory, and cannot limit the application. BRIEF DESCRIPTION OF DRAWINGS

[0015] The above and other objects, features and advantages of the application will become more apparent from the following detailed description of exemplary embodiments of the application taken in conjunction with the accompanying drawings, in which like reference characters refer to the like parts throughout the different views.

[0016] Figure 1 is a structural schematic view of the grading device shown in the embodiments of the application;

[0017] Figure 2 is a structural schematic view of the sorting mechanism of the grading device shown in the embodiments of the application;

[0018] Reference signs:

[0019] 1, sorting mechanism; 101, sorting cylinder; 102, sorting motor; 103, sorting impeller; 104, feed pipe; 105, discharge pipe; 106, coarse material cavity; 107, fine material cavity; 108, first valve; 109, second valve; 110, first air supplement opening; 111, first air collecting pipe; 112, second air supplement opening; 113, third air supplement opening; 114, second air collecting pipe; 2, bag dust collector; 3, fan. DETAILED DESCRIPTION

[0020] Embodiments of the present application will be described in more detail below with reference to the accompanying drawings. While embodiments of the present application are shown in the drawings, it is understood that the present application can be embodied in various forms and should not be limited by the embodiments set forth herein. Rather, these embodiments are provided so that this application will be thorough and complete, and fully convey the scope of the present application to those skilled in the art.

[0021] It should be understood that, although the terms "first", "second", "third", etc. are used herein to describe various information, these information should not be limited by these terms. These terms are only used to distinguish the same type of information from each other. For example, the first information can also be referred to as the second information, and similarly, the second information can also be referred to as the first information without departing from the scope of the present application. Therefore, the features defined as "first", "second" can explicitly or implicitly include one or more of the features. In the description of the present application, the meaning of "a plurality of" is two or more, unless otherwise specifically limited. In the description of the present application, it should be understood that the orientations or positional relationships indicated by the terms "length", "width", "upper", "lower", "front", "back", "left", "right", "vertical", "horizontal", "top", "bottom", "inner", "outer", etc. are based on the orientations or positional relationships shown in the drawings, and are only for the convenience of describing the present application and simplifying the description, and are not intended to indicate or imply that the devices or elements referred to must have a particular orientation, be constructed and operated in a particular orientation, and therefore cannot be understood as limiting the present application. Unless otherwise specifically defined and limited, the terms "mounting", "connection", "connection", "fixing" and the like should be interpreted broadly, for example, they can be fixed connection, or detachable connection, or integral; can be mechanical connection, or electrical connection; can be direct connection, or indirect connection through intermediate medium; can be internal connection of two elements or interaction relationship between two elements. For those skilled in the art, the specific meaning of the above terms in the present application can be understood according to the specific circumstances.

[0022] The screening device using the screen for grading, when grading the ultra-fine spherical powder, the particle size of the material is too small, the screen mesh is difficult to make, the particle size of the material in different grades after grading is too small, and the precision of the screen is too high, therefore, the traditional screening device is not suitable for ultra-fine spherical powder grading operation.

[0023] To solve the above problems, as shown in Figure 1 and Figure 2 The present application provides an efficient grading device for ultra-fine spherical powder, which comprises a sorting mechanism 1, a bag dust collector 2 and a fan 3.

[0024] The sorting mechanism 1 is provided with at least two, which are connected in series, that is, the discharge port of one sorting mechanism 1 is connected with the feeding port of the next sorting mechanism 1, so as to realize the multiple classification of the superfine spherical powder.

[0025] The feeding pipe 104 is connected with the external atmosphere, and when working, the fan 3 is powered to rotate, air in the sorting mechanism 1 and the bag dust collector 2 is extracted, so that the negative pressure is generated in the sorting mechanism 1 and the bag dust collector 2, the superfine spherical powder to be classified is introduced through the feeding hopper, the superfine spherical powder is carried into each sorting mechanism 1 through the airflow in the feeding pipe 104 to be sorted, and different sorting mechanisms 1 sort out superfine spherical powders with different particle sizes, so as to realize the classification of the superfine spherical powder. The sorting mechanism 1 comprises a sorting cylinder 101, a sorting motor 102, a sorting impeller 103, a feeding pipe 104 and a discharge pipe 105. The sorting impeller 103 is rotatably arranged at the top of the sorting cylinder 101, and the sorting motor 102 drives the rotation of the sorting impeller 103, that is, the rotating shaft of the sorting motor 102 extends downward and is connected with the sorting impeller 103, so that the sorting motor 102 can drive the rotation of the sorting impeller 103. The sorting impeller 103 divides the internal cavity of the sorting cylinder 101 into a coarse material cavity 106 and a fine material cavity 107. The feeding pipe 104 is inserted into the coarse material cavity 106 and the port thereof faces the sorting impeller 103. The discharge pipe 105 is connected with the fine material cavity 107. The first valve 108 and the second valve 109 are arranged at the bottom of the sorting cylinder 101 from bottom to top.

[0026] When working, the sorting motor 102 is powered to rotate, drives the rotation of the sorting impeller 103, forms the airflow flowing from the coarse material cavity 106 to the fine material cavity 107, so as to enhance the airflow generated by the fan 3. At the same time, the rotation speed of the sorting impeller 103 in different sorting mechanisms 1 can be adjusted, so that different airflows are generated in different sorting mechanisms 1. The superfine spherical powder is sprayed upward from the port of the feeding pipe 104, and under the action of the airflow, the superfine spherical powder with small particle size (light weight) flows upward under the action of the airflow, enters the fine material cavity 107 through the sorting impeller 103, and is then guided out through the discharge pipe 105. The superfine spherical powder with large particle size (heavy weight) falls downward to the bottom of the sorting cylinder 101 (that is, the bottom of the coarse material cavity 106) under the action of gravity, so that the superfine spherical powders with different particle sizes are sorted.

[0027] The ultrafine spherical powder falling to the bottom of the sorting cylinder 101 is guided out of the sorting cylinder 101 by alternating opening of the first valve 108 and the second valve 109; by this design, the device can be opened at different stages as needed, thereby facilitating sampling work.

[0028] In some embodiments, a first air supplement port 110 is arranged on the sidewall of the sorting cylinder 101, and the height of the first air supplement port 110 is slightly lower than the port of the feeding pipe 104, forming an air flow that is introduced from the first air supplement port 110 and then upward, and the ultrafine spherical powder falling downward is sorted again, forming secondary sorting, and the material that is not sorted out due to the relatively dense material at the beginning of sorting is sorted out, effectively ensuring the accuracy of the sorting result.

[0029] In some embodiments, a first air collection pipe 111 covering the first air supplement port 110 is arranged on the inner sidewall of the sorting cylinder 101, and the first air collection pipe 111 is conical, and the air flow introduced from the first air supplement port 110 is concentrated and sprayed out through the first air collection pipe 111, effectively improving the strength of the supplemented air flow.

[0030] In some embodiments, a second air supplement port 112 is arranged below the first air supplement port 110 on the sidewall of the sorting cylinder 101, forming an air flow that is introduced from the second air supplement port 112 and then upward, and the ultrafine spherical powder falling downward is sorted again, and the material that is not sorted out due to the relatively dense material at the beginning of sorting is sorted out, effectively ensuring the accuracy of the sorting result. In some embodiments, a third air supplement port 113 is arranged on the sidewall of the coarse material cavity 106, and a second air collection pipe 114 covering the second air supplement port 112 is arranged on the inner sidewall of the sorting cylinder 101, and the air outlet of the second air collection pipe 114 is opposite to the sorting impeller 103, and when working, the air introduced from the third air supplement port 113 is blown to the sorting impeller 103 after being converged through the second air collection pipe 114, thereby blowing off the material adhered to the sorting impeller 103, effectively ensuring the normal operation of the sorting impeller 103.

[0031] The above has described the embodiments of the present application, and the above description is exemplary, not exhaustive, and is not limited to the disclosed embodiments. Many modifications and changes are obvious to those skilled in the art without departing from the scope and spirit of the described embodiments. The selection of the terms used herein is intended to best explain the principles, practical applications, or improvements to the technology in the market of the embodiments, or to enable other ordinary skilled persons in the art to understand the embodiments disclosed herein.

Claims

1. A high efficiency classification device for ultrafine spherical powders, characterized by: Including sorting mechanism, cloth bag dust collector, fan; The sorting mechanism includes a sorting cylinder, a sorting motor, a sorting impeller, a feeding pipe and a discharging pipe. The sorting impeller is rotatably installed at the top of the sorting cylinder and is driven to rotate by the sorting motor. The sorting impeller divides the internal cavity of the sorting cylinder into a coarse material cavity and a fine material cavity. The feeding pipe is inserted into the coarse material cavity and has a port facing the sorting impeller. The discharging pipe is connected to the fine material cavity. The first valve and the second valve are sequentially arranged from bottom to top at the bottom of the sorting cylinder. The sorting mechanism is provided with at least two sorting mechanisms which are connected in series. The feeding pipe of the first sorting mechanism is further provided with a feeding hopper. The free end of the discharging pipe of the last sorting mechanism is connected to the cloth bag dust collector. The air outlet pipe of the cloth bag dust collector is connected to the fan.

2. The high-efficiency grading device for superfine spherical powder according to claim 1, characterized in that: A first air supplement port is arranged on the side wall of the sorting cylinder, and the height of the first air supplement port is slightly lower than the port of the feeding pipe.

3. The high-efficiency grading device for superfine spherical powder according to claim 2, characterized in that: A first air collecting pipe is arranged on the inner side wall of the sorting cylinder to cover the first air supplement port, and the first air collecting pipe is tapered.

4. The high-efficiency grading device for superfine spherical powder according to claim 2, characterized in that: A second air supplement port is arranged below the first air supplement port on the side wall of the sorting cylinder.

5. The high-efficiency grading device for superfine spherical powder according to claim 4, characterized in that: A third air supplement port is arranged on the side wall of the coarse material cavity. A second air collecting pipe is arranged on the inner side wall of the sorting cylinder to cover the second air supplement port, and the air outlet port of the second air collecting pipe faces the sorting impeller.

Images