A powder material pipeline screening device and an air jet mill feeding device

Abstract

This utility model relates to a powder material pipeline sieving device and an air jet mill feeding device, including a sieving pipe and a vibrating assembly. The sieving pipe includes an upper end cover, a lower end cover, a first flange, and a screen. The upper and lower end covers are connected by the first flange, which also fixes the screen. The vibrating assembly includes a vibrating motor, which is installed on one side of the sieving pipe corresponding to the screen position. The vibrating motor vibrates the screen, and the screen filters the material. The technical solution of this application features a dedicated pipeline sieving device. The screen is fixed by connecting the upper and lower end covers with the first flange. The clamping force of the first flange ensures that the screen edge is evenly stressed, preventing local deformation and breakage, and facilitating installation and disassembly of the screen. Furthermore, by using a vibrating motor to vibrate the screen, the screen filters the material. Compared to existing vibrating screens, it occupies less space and is suitable for most small spaces.

Description

Technical Field

[0001] This utility model relates to the field of powder materials technology, and in particular to a powder material pipeline sieving device and an air jet mill feeding device. Background Technology

[0002] The powder materials industry currently uses air jet mills to pulverize materials. Since the nozzles and impellers of air jet mills are made of ceramic, all materials entering the air jet mill need to be screened to ensure that no metal foreign objects enter. However, existing vibrating screens require a large installation space and cannot be used in most small spaces. Utility Model Content

[0003] Therefore, there is a need to provide a powder material pipeline screening device and an air jet mill feeding device to solve the technical problem that the existing vibrating screen requires a large installation space and cannot be used in most small spaces.

[0004] To achieve the above objectives, in a first aspect, this utility model provides a powder material pipeline sieving device, comprising:

[0005] The sieve tube includes an upper end cover, a lower end cover, a first flange, and a sieve screen. The upper end cover and the lower end cover are connected by the first flange, and the sieve screen is fixed by the first flange.

[0006] The vibration assembly includes a vibration motor, which is installed on one side of the sieve tube at the corresponding position of the sieve screen. The vibration motor vibrates the sieve screen, and the sieve screen filters the material.

[0007] Unlike existing technologies, the technical solution of this application features a dedicated pipeline screening device. The screen is fixed by connecting the upper and lower end covers via a first flange. The clamping force of the first flange ensures even stress on the screen edges, preventing localized deformation and breakage, and facilitating installation and disassembly. Furthermore, the screen is vibrated by a vibrating motor, allowing for material filtration. Compared to existing vibrating screens, this design occupies less space and is suitable for most small-space applications.

[0008] As one embodiment of this utility model, the powder material pipeline screening device also includes a shock-absorbing component. The shock-absorbing component is installed at one end of the screening pipe and includes a shock-absorbing rubber tube and a second flange. The shock-absorbing rubber tube is connected to one end of the screening pipe through the second flange.

[0009] In this way, the vibration force generated by the vibratory motor can be dissipated by the shock-absorbing rubber hose, avoiding the failure of the pipe flange seal that is easily caused by the vibration of the vibratory motor. One end of the screen pipe is connected through the second flange, which is simple in structure and easy to install and disassemble.

[0010] As one embodiment of this utility model, the shock-absorbing assembly also includes a third flange, which is installed at the end of the shock-absorbing rubber tube away from the screen tube, and is used to install external pipes.

[0011] Thus, by setting a third flange, the powder material pipeline screening device can be installed on the external pipeline as a screening device for the external pipeline, and the flange connection facilitates installation and disassembly.

[0012] As one embodiment of this utility model, two sets of shock-absorbing components are provided, and the two sets of shock-absorbing components are respectively installed at both ends of the sieve tube.

[0013] Thus, both ends of the sieve tube are equipped with shock-absorbing components to form a vibration isolation zone, which can dissipate the vibration force at both ends of the sieve tube and prevent the vibration wave from being reflected and amplified through the sieve tube.

[0014] As one embodiment of this utility model, the upper end cover includes an upper feed port, and the sieve tube also includes an upper control valve, which is installed at the upper feed port.

[0015] Thus, the upper control valve can be used to control whether material enters the screening tube according to the actual situation. Optionally, the valve opening of the upper control valve is linked to the vibration motor for control (e.g., vibration frequency of 40Hz when the opening is 50%) to maintain constant screening efficiency.

[0016] In one embodiment of this utility model, the lower end cover includes a lower discharge port, and the sieve tube also includes a lower control valve, which is installed at the lower discharge port.

[0017] Thus, the lower control valve can control whether the screened material enters the next process. Optionally, the opening degree of the lower control valve is linked to the vibration motor (e.g., vibration frequency of 40Hz when the opening is 50%) to maintain constant screening efficiency. In addition, closing both the upper and lower control valves can completely isolate the screening pipe, facilitating maintenance of the screening pipe.

[0018] As one embodiment of this utility model, the sieve tube also includes a sealing ring, which is installed between the first flange and the sieve.

[0019] In this way, the sealing ring ensures the seal between the first flange and the screen.

[0020] As one embodiment of this utility model, the vibration assembly also includes a vibration bracket, which is installed on one side of the sieve tube and is used to install the vibration motor.

[0021] Thus, the vibration motor can be easily installed using the vibration bracket.

[0022] As one embodiment of this utility model, two vibration motors are provided, and the two vibration motors are respectively installed on both sides of the sieve tube at the corresponding positions of the sieve mesh.

[0023] In this way, the two vibrating motors are symmetrically arranged, and the two motors rotate in opposite directions to generate compound vibration (frequency 30-50Hz, amplitude 2-5mm), which causes the screen to produce horizontal torsional vibration (better to remove embedded particles (such as agglomerates)) and vertical vibration (accelerate the passage of fine powder through the screen).

[0024] To achieve the above objectives, in a second aspect, this utility model also provides an air jet mill feeding device, comprising:

[0025] Airflow mill feed pipe;

[0026] The powder material pipeline screening device provided by the inventor as described above is installed inside the feed pipe of the air jet mill.

[0027] Unlike existing technologies, the above technical solution can connect the air jet mill feed pipe via a flange to achieve continuous "conveyor-screening-grinding" operation. The clamping force of the first flange ensures uniform stress on the screen edges, preventing localized deformation and breakage, and facilitating screen installation and disassembly. Furthermore, the screen is vibrated by a vibrating motor, allowing for material filtration. Compared to existing vibrating screens, it occupies less space and is suitable for most small-space applications.

[0028] The above description of the utility model is merely an overview of the technical solution of this application. In order to enable those skilled in the art to better understand the technical solution of this application and to implement it based on the description and drawings, and to make the above-mentioned objectives and other objectives, features and advantages of this application easier to understand, the following description is provided in conjunction with the specific embodiments and drawings of this application. Attached Figure Description

[0029] The accompanying drawings are only used to illustrate the principles, implementation methods, applications, features, and effects of specific embodiments of this application and other related content, and should not be considered as limitations on this application.

[0030] In the accompanying drawings of the instruction manual:

[0031] Figure 1 This is a schematic diagram of the structure of a powder material pipeline sieving device according to an embodiment of this application. Figure 1 ;

[0032] Figure 2 This is a schematic diagram of the structure of a powder material pipeline sieving device according to an embodiment of this application. Figure 2 ;

[0033] Figure 3 This is a schematic diagram of the structure of a powder material pipeline sieving device according to an embodiment of this application. Figure 3 ;

[0034] Figure 4 This is a schematic diagram of the structure of a powder material pipeline sieving device according to an embodiment of this application. Figure 4 ;

[0035] Figure 5 This is a schematic diagram of the structure of a powder material pipeline sieving device according to an embodiment of this application. Figure 5 ;

[0036] Figure 6 for Figure 5 A magnified view of A in the middle.

[0037] The reference numerals used in the above figures are explained as follows:

[0038] 100-Powder material pipeline screening device; 1-Screening pipe; 11-Upper end cover; 111-Upper feed port; 112-Upper discharge port; 12-Lower end cover; 121-Lower feed port; 122-Lower discharge port; 13-First flange; 14-Screen; 15-Upper control valve; 16-Lower control valve; 17-Sealing ring; 2-Vibration assembly; 21-Vibration motor; 22-Vibration support; 3-Shock absorption assembly; 31-Shock absorption rubber tube; 32-Second flange; 33-Third flange. Detailed Implementation

[0039] To illustrate the possible application scenarios, technical principles, implementable specific solutions, and achievable objectives and effects of this application in detail, the following description, in conjunction with the listed specific embodiments and accompanying drawings, provides a detailed explanation. The embodiments described herein are merely illustrative of the technical solutions of this application and are therefore intended to limit the scope of protection of this application.

[0040] In this document, the term "embodiment" means that a specific feature, structure, or characteristic described in connection with an embodiment may be included in at least one embodiment of this application. The term "embodiment" appearing in various places throughout the specification does not necessarily refer to the same embodiment, nor does it specifically limit its independence or connection with other embodiments. In principle, in this application, as long as there are no technical contradictions or conflicts, the technical features mentioned in each embodiment can be combined in any way to form corresponding implementable technical solutions.

[0041] Unless otherwise defined, the technical terms used herein have the same meaning as commonly understood by one of ordinary skill in the art to which this application pertains; the use of related terms herein is merely for the purpose of describing particular embodiments and is not intended to limit this application.

[0042] In the description of this application, the term "and / or" is used to describe the logical relationship between objects, indicating that three relationships can exist. For example, A and / or B means: A exists, B exists, and A and B exist simultaneously. Additionally, the character " / " in this document generally indicates that the preceding and following objects have an "or" logical relationship.

[0043] In this application, terms such as “first” and “second” are used only to distinguish one entity or operation from another, and do not necessarily require or imply any actual quantity, hierarchy or order relationship between these entities or operations.

[0044] Without further limitations, the use of terms such as “comprising,” “including,” “having,” or other similar open-ended expressions in this application is intended to cover non-exclusive inclusion, which does not exclude the presence of additional elements in a process, method, or product that includes the stated elements, such that a process, method, or product that includes a list of elements may include not only those defined elements but also other elements not expressly listed, or elements inherent to such a process, method, or product.

[0045] Similar to the understanding in the Examination Guidelines, in this application, expressions such as "greater than," "less than," and "exceeding" are understood to exclude the stated number; expressions such as "above," "below," and "within" are understood to include the stated number. Furthermore, in the description of the embodiments in this application, "multiple" means two or more (including two), and similar expressions related to "multiple" are also understood in this way, such as "multiple groups" and "multiple times," unless otherwise explicitly specified.

[0046] In the description of the embodiments of this application, the space-related expressions used, such as "center," "longitudinal," "lateral," "length," "width," "thickness," "upper," "lower," "front," "rear," "left," "right," "vertical," "horizontal," "vertical," "top," "bottom," "inner," "outer," "clockwise," "counterclockwise," "axial," "radial," and "circumferential," indicate the orientation or positional relationship based on the orientation or positional relationship shown in the specific embodiments or drawings. They are only for the purpose of describing the specific embodiments of this application or for the reader's understanding, and do not indicate or imply that the device or component referred to must have a specific position, a specific orientation, or be constructed or operated in a specific orientation. Therefore, they should not be construed as limitations on the embodiments of this application.

[0047] Unless otherwise expressly specified or limited, the terms "installation," "connection," "linking," "fixing," and "setting," as used in the description of the embodiments of this application, should be interpreted broadly. For example, "connection" can be a fixed connection, a detachable connection, or an integral arrangement; it can be a direct connection or an indirect connection through an intermediate medium; it can be a relationship of two components combined together, an interaction relationship between two components, or a connection within two structures. Those skilled in the art to which this application pertains can understand the specific meaning of the above terms in the embodiments of this application according to the specific circumstances.

[0048] Existing vibrating screens require a large installation space and are not suitable for most small spaces.

[0049] In view of this, this application provides a powder material pipeline sieving device 100, including a sieving pipe 1 and a vibration assembly 2. The sieving pipe 1 includes an upper end cover 11, a lower end cover 12, a first flange 13, and a screen 14. The upper end cover 11 and the lower end cover 12 are connected by the first flange 13, and the screen 14 is fixed by the first flange 13. The vibration assembly 2 includes a vibration motor 21, which is installed on one side of the sieving pipe 1 at the corresponding position of the screen 14. The vibration motor 21 vibrates the screen 14, and the screen 14 filters the material.

[0050] According to some embodiments of this application, this embodiment relates to an air jet mill feeding device, including an air jet mill feed pipe and a powder material pipeline screening device 100, wherein the powder material pipeline screening device 100 is installed inside the air jet mill feed pipe.

[0051] Install the powder material pipeline screening device 100 into the feed pipeline of the air classifier mill via the third flange 33, and then turn on the vibration motor 21. At the same time, ensure that the upper control valve 15 and the lower control valve 16 are open. The pipeline screening mechanism starts to vibrate, and the vibration force generated by the vibration motor 21 is absorbed by the damping component 3. The material enters the screening pipe 1 through the upper damping component 3, passes through the screen 14, and then enters the air classifier mill through the lower damping component 3, preventing metal foreign objects from entering the air classifier mill.

[0052] The above technical solution can connect the air jet mill feed pipe via a flange to achieve continuous "conveyor-screening-grinding" operation. The clamping force of the first flange 13 ensures uniform force distribution on the edges of the screen 14, preventing localized deformation and breakage, and facilitating installation and disassembly of the screen 14. Furthermore, the vibration motor 21 vibrates the screen 14, allowing it to filter materials. Compared to existing vibrating screens, it occupies less space and is suitable for most small-space applications.

[0053] According to some embodiments of this application, please refer to Figures 1 to 6This embodiment also relates to a powder material pipeline sieving device 100, including a sieving pipe 1 and a vibration assembly 2. The sieving pipe 1 includes an upper end cover 11, a lower end cover 12, a first flange 13, and a screen 14. The upper end cover 11 and the lower end cover 12 are connected by the first flange 13, and the screen 14 is fixed by the first flange 13. The vibration assembly 2 includes a vibration motor 21, which is installed on one side of the sieving pipe 1 at the corresponding position of the screen 14. The vibration motor 21 vibrates the screen 14, and the screen 14 filters the material.

[0054] The powder material pipeline screening device 100 can also be used for ceramic roller mills, feed pipeline screening, and slurry pipeline screening.

[0055] Optionally, a first flange 13 is installed at the upper discharge port 112 of the upper end cover 11, and a first flange 13 is installed at the lower feed port 121 of the lower end cover 12. A screen 14 is installed between the two first flanges 13 and connected by a first bolt. The mesh size of the screen 14 can be set according to different particle sizes of the material.

[0056] The technical solution of this application includes a dedicated pipeline screening device. The screen 14 is fixed by connecting the upper end cover 11 and the lower end cover 12 via the first flange 13. The clamping force of the first flange 13 ensures that the edges of the screen 14 are evenly stressed, preventing localized deformation and breakage, and facilitating installation and disassembly of the screen 14. Furthermore, the screen 14 is vibrated by a vibration motor 21, allowing it to filter materials. Compared to existing vibrating screens, this design occupies less space and is suitable for most small-space applications.

[0057] like Figure 2 and Figure 3 As shown, the powder material pipeline screening device 100 also includes a shock-absorbing component 3, which is installed at one end of the screening pipe 1. The shock-absorbing component 3 includes a shock-absorbing rubber tube 31 and a second flange 32. The shock-absorbing rubber tube 31 is connected to one end of the screening pipe 1 through the second flange 32.

[0058] Optionally, a second flange 32 is installed at the discharge port of the shock-absorbing rubber tube 31, and a second flange 32 is installed at one end of the screening tube 1. The two second flanges 32 are connected by a second bolt.

[0059] In this way, the vibration force generated by the vibrating motor 21 can be dissipated by the shock-absorbing rubber tube 31, avoiding the failure of the pipe flange seal caused by the vibration of the vibrating motor 21. One end of the screen pipe 1 is connected through the second flange 32, which is simple in structure and easy to install and disassemble.

[0060] like Figure 2 and Figure 3As shown, the shock-absorbing assembly 3 also includes a third flange 33, which is installed at the end of the shock-absorbing rubber tube 31 away from the screen tube 1. The third flange 33 is used to install external pipes.

[0061] Thus, by setting a third flange 33, the powder material pipeline screening device 100 can be installed on an external pipeline as a screening device for the external pipeline, and the flange connection facilitates installation and disassembly.

[0062] like Figure 4 and Figure 5 As shown, there are two sets of shock-absorbing components 3, which are installed at both ends of the sieve tube 1 respectively.

[0063] Thus, both ends of the sieve tube 1 are equipped with shock-absorbing components 3, forming a vibration isolation zone, which can dissipate the vibration force at both ends of the sieve tube 1 and prevent the vibration wave from being reflected and amplified through the sieve tube 1.

[0064] like Figure 5 As shown, the upper end cover 11 includes an upper feed inlet 111, and the sieve tube 1 also includes an upper control valve 15, which is installed at the upper feed inlet 111.

[0065] Thus, the upper control valve 15 can be used to control whether the material enters the screening pipe 1 according to the actual situation. Optionally, the valve opening of the upper control valve 15 is linked to the vibration motor 21 for control (e.g., vibration frequency of 40Hz when the opening is 50%) to maintain constant screening efficiency.

[0066] like Figure 5 As shown, the lower end cover 12 includes a lower discharge port 122, and the sieve tube 1 also includes a lower control valve 16, which is installed at the lower discharge port 122.

[0067] Thus, the lower control valve 16 can control whether the screened material enters the next process. Optionally, the valve opening of the lower control valve 16 is linked to the vibration motor 21 for control (e.g., vibration frequency of 40Hz when the opening is 50%) to maintain constant screening efficiency. In addition, closing the upper control valve 15 and the lower control valve 16 can completely isolate the screening pipe 1, facilitating maintenance of the screening pipe 1.

[0068] like Figure 6 As shown, the sieve tube 1 also includes a sealing ring 17, which is installed between the first flange 13 and the screen 14.

[0069] Thus, the sealing ring 17 ensures the seal between the first flange 13 and the screen 14. When a first flange 13 is installed at the upper discharge port 112 of the upper end cover 11 and a first flange 13 is installed at the lower inlet port 121 of the lower end cover 12, and a screen 14 is installed between the two first flanges 13, a sealing ring 17 is installed between the sealing ring 17 and both first flanges 13.

[0070] like Figures 1 to 5 As shown, the vibration assembly 2 also includes a vibration bracket 22, which is installed on one side of the sieve tube 1 and is used to install the vibration motor 21.

[0071] Thus, the vibration motor 21 can be easily installed via the vibration bracket 22.

[0072] like Figures 1 to 5 As shown, there are two vibration motors 21, which are respectively installed on both sides of the screen tube 1 at the corresponding positions on the screen 14.

[0073] Thus, the two vibrating motors 21 are symmetrically arranged, and the two motors rotate in opposite directions to generate compound vibration (frequency 30-50Hz, amplitude 2-5mm), which causes the screen 14 to generate horizontal torsional vibration (better to remove embedded particles (such as agglomerates)) and vertical vibration (accelerate the passage of fine powder through the screen).

[0074] It should be noted that although the above embodiments have been described herein, this does not limit the scope of patent protection for this utility model. Therefore, any changes and modifications made to the embodiments described herein based on the innovative concept of this utility model, or equivalent structural or procedural transformations made using the content of this utility model's specification and drawings, directly or indirectly applying the above technical solutions to other related technical fields, are all included within the scope of patent protection for this utility model.

Claims

1. A powder material pipeline sieving apparatus, characterized by, include: The sieve tube includes an upper end cover, a lower end cover, a first flange, and a sieve screen. The upper end cover and the lower end cover are connected by the first flange, and the sieve screen is fixed by the first flange. A vibration assembly, including a vibration motor, is installed on one side of the sieve tube at a corresponding position on the sieve screen. The vibration motor vibrates the sieve screen, and the sieve screen filters the material.

2. The powder material pipeline sieving apparatus of claim 1, wherein, The powder material pipeline screening device also includes a shock-absorbing component, which is installed at one end of the screening pipe. The shock-absorbing component includes a shock-absorbing rubber tube and a second flange, and the shock-absorbing rubber tube is connected to one end of the screening pipe through the second flange.

3. The powder material pipeline sieving apparatus of claim 2, wherein, The shock-absorbing assembly also includes a third flange, which is installed at the end of the shock-absorbing rubber tube away from the sieve tube, and is used to install external pipes.

4. A powder material pipeline sieving apparatus according to claim 2 or 3, wherein, The shock absorption assembly is provided in two sets, and the two sets of shock absorption assemblies are respectively installed at both ends of the sieve tube.

5. The powder material pipeline sieving apparatus of claim 4, wherein, The upper end cover includes an upper feed inlet, and the sieve tube also includes an upper control valve, which is installed at the upper feed inlet.

6. The powder material pipeline sieving apparatus of claim 5, wherein, The lower end cover includes a lower discharge port, and the sieve tube also includes a lower control valve, which is installed at the lower discharge port.

7. The powder material pipeline sieving apparatus of claim 1, wherein, The sieve tube also includes a sealing ring, which is installed between the first flange and the sieve mesh.

8. The powder material pipeline sieving apparatus of claim 1, wherein, The vibration assembly also includes a vibration bracket, which is installed on one side of the sieve tube and is used to mount the vibration motor.

9. The powder material pipeline sieving apparatus of claim 1, wherein, Two vibration motors are provided, and the two vibration motors are respectively installed on both sides of the sieve tube at the corresponding positions of the sieve.

10. An air jet mill feed device characterized by, include: air jet mill feed pipe; The powder material pipeline screening device as described in any one of claims 1 to 9, wherein the powder material pipeline screening device is installed inside the feed pipe of the air jet mill.

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