Screening device for spherical magnesium powder
By introducing auger blades and material feed sheets into the ultrasonic vibrating screening device, the problem of magnesium powder accumulation on the screening mesh was solved, achieving uniform distribution and rapid screening of magnesium powder, and improving screening efficiency.
Patent Information
- Authority / Receiving Office
- CN · China
- Patent Type
- Utility models(China)
- Current Assignee / Owner
- Filing Date
- 2025-04-14
- Publication Date
- 2026-03-24
AI Technical Summary
In the existing ultrasonic vibrating screen, magnesium powder enters the screening mesh directly from the feed pipe during the magnesium powder screening process, resulting in an excessive thickness of magnesium powder on the screening mesh, which bears a large weight and affects the screening efficiency.
A screening device including a feeding mechanism was designed. Through the cooperation of auger blades and material distribution plates, magnesium powder is evenly distributed and falls rapidly. Combined with the vibration of the ultrasonic vibrating screen and ultrasonic screening, the screening efficiency of magnesium powder is improved.
By designing the auger blades and material distribution plates, magnesium powder is evenly distributed on the screening mesh, improving screening efficiency and shortening screening time.
Smart Images
Figure CN224025656U_ABST
Abstract
Description
TECHNICAL FIELD
[0001] The utility model relates to the technical field of magnesium powder production, particularly to a screening device for spherical magnesium powder. BACKGROUND
[0002] Magnesium powder is a commonly used metal powder material with a wide range of applications, including manufacturing rocket fuel, anticorrosive coatings, and pharmaceutical preparations. During production and processing, screening magnesium powder is an essential step to ensure uniform particle size and stable quality. Ultrasonic vibrating screens, as a kind of efficient screening equipment, are widely used in the screening process of various powder materials. However, the existing ultrasonic vibrating screens directly feed the magnesium powder from the feeding pipe into the screening mesh, causing a large thickness of magnesium powder on the screening mesh at the feeding port, which results in a large weight on the screening mesh, a long screening time, and a low screening efficiency of the magnesium powder. SUMMARY
[0003] The purpose of the utility model is to provide a screening device for spherical magnesium powder to solve the above problems.
[0004] The utility model discloses a screening device for spherical magnesium powder, which realizes the above-mentioned purposes through the following technical solutions:
[0005] A screening device for spherical magnesium powder, comprising a base, an installation seat elastically connected to the upper end of the base, an ultrasonic vibrating screen mechanism arranged on the installation seat, and a discharging mechanism for uniformly feeding spherical magnesium powder connected to the ultrasonic vibrating screen mechanism. The ultrasonic vibrating screen mechanism comprises a double-shaft motor mounted on the installation seat, a swing hammer arranged on the lower end output shaft of the double-shaft motor, a bottom shell fixed to the upper end of the installation seat, a bottom plate fixed to the bottom of the bottom shell, at least two screening rings connected in sequence in the longitudinal direction of the bottom shell, a screening mesh arranged in the screening ring, an ultrasonic transducer connected to the rear end of the screening mesh, an uppermost screening ring connected to a feeding cover, and a discharge cylinder communicated with the side wall of the screening ring and the bottom shell. The discharging mechanism comprises a rotating shaft vertically penetrating through the bottom plate and the screening mesh, a conical retaining table arranged on the upper side of the rotating shaft above the uppermost screening mesh, a scattering piece arranged on the upper side of the conical retaining table, and an auger blade arranged on the upper side of the scattering piece.
[0006] Further settings: the rotating shaft is connected to the output shaft of the upper end of the double-shaft motor through a shaft coupling, and the rotating shaft is rotationally connected to the bottom plate and the screening mesh.
[0007] Further settings: a flange protruding upward is arranged at the center of the bottom plate and the screening mesh outside the rotating shaft.
[0008] Further settings: a feeding pipe is arranged at the center position of the upper end of the feeding cover, the auger blade is welded to the rotating shaft, and the auger blade is tangent to the inner wall of the feeding pipe.
[0009] Further arrangement: the upper side of the screening net is horizontal, and the circumference is downwardly inclined; the bottom shell and the adjacent screening rings are connected through pipe clamps.
[0010] Further arrangement: the mesh number of the screening net gradually increases from top to bottom.
[0011] Compared with the prior art, the utility model has the advantages that:
[0012] Through the arrangement of the discharging mechanism, the taper blocking table, the bulk material piece and the auger blade on the rotating shaft rotate with the double-shaft motor in the vibration process of the discharging mechanism and the ultrasonic vibration screen mechanism, the auger blade stably and orderly drops the magnesium powder in the feeding pipe, the bulk material piece throws the magnesium powder outward in the dropping process, the uniformity of the dropping of the magnesium powder is improved, the magnesium powder on the screening net is quickly screened, and the screening efficiency is improved. BRIEF DESCRIPTION OF DRAWINGS
[0013] In order to more clearly illustrate the technical scheme in the embodiments of the utility model or the prior art, the following will briefly introduce the drawings needed to be used in the embodiment or the prior art description, and obviously, the drawings in the following description are only some embodiments of the utility model, and for those skilled in the art, other drawings can be obtained according to these drawings without creating creative labor.
[0014] Figure 1 It is a structure schematic view of the screening device for spherical magnesium powder of the utility model;
[0015] Figure 2 It is another view structure schematic view of the screening device for spherical magnesium powder of the utility model;
[0016] Figure 3 It is a main section structure schematic view of the screening device for spherical magnesium powder of the utility model;
[0017] Figure 4 It is a half section structure schematic view of the screening device for spherical magnesium powder of the utility model;
[0018] Figure 5 It is Figure 3 The enlarged structure schematic view of A of the utility model.
[0019] The following explains the reference signs:
[0020] 1, base; 11, mounting seat; 21, double-shaft motor; 22, swing hammer; 23, screening ring; 231, bottom shell; 24, discharge cylinder; 25, bottom plate; 26, screening net; 27, feeding cover; 31, rotating shaft; 32, taper blocking table; 33, bulk material piece; 34, auger blade. DETAILED DESCRIPTION
[0021] In the description of this utility model, it should be understood that the terms "center," "longitudinal," "lateral," "upper," "lower," "front," "rear," "left," "right," "vertical," "horizontal," "top," "bottom," "inner," and "outer," etc., indicating orientation or positional relationships based on the orientation or positional relationships shown in the accompanying drawings, 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," "second," etc., are used for descriptive purposes only and should not be construed as indicating or implying relative importance or implicitly specifying the number of indicated technical features. Thus, features defined with "first," "second," etc., may explicitly or implicitly include one or more of that feature. In the description of this utility model, unless otherwise stated, "a plurality of" means two or more.
[0022] In the description of this utility model, it should be noted that, unless otherwise explicitly specified and limited, the terms "installation," "connection," and "joining" should be interpreted broadly. For example, they can refer to a fixed connection, a detachable connection, or an integral connection; they can refer to a mechanical connection or an electrical connection; they can refer to a direct connection or an indirect connection through an intermediate medium; and they can refer to the internal connection of 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.
[0023] The present invention will be further described below with reference to the accompanying drawings:
[0024] like Figures 1-5 As shown, a sieving device for spherical magnesium powder includes a base 1, an mounting seat 11 elastically connected to the upper end of the base 1, an ultrasonic vibrating screen mechanism provided on the mounting seat 11, and a feeding mechanism for uniformly feeding spherical magnesium powder connected to the ultrasonic vibrating screen mechanism.
[0025] In the embodiment, the ultrasonic vibration screen mechanism comprises a double-shaft motor 21 mounted on the mounting seat 11, a swing hammer 22 arranged on the lower end output shaft of the double-shaft motor 21, a bottom shell 231 fixed on the upper end of the mounting seat 11, a bottom plate 25 fixed on the bottom of the bottom shell 231, at least two screening rings 23 connected in sequence in the longitudinal direction of the bottom shell 231, a screening net 26 arranged in the screening ring 23, an ultrasonic transducer connected at the rear end of the screening net 26, an ultrasonic generator connected to the ultrasonic transducer through a cable, the ultrasonic transducer and the ultrasonic generator being prior art and not described here, a feeding cover 27 connected to the uppermost screening ring 23, and a discharge cylinder 24 communicated on the side wall of the screening ring 23 and the bottom shell 231; the upper side of the screening net 26 is horizontally arranged and the circumference is downwardly inclined, the bottom shell 231 and the screening ring 23 and the adjacent screening rings 23 are connected through pipe clamps; the mesh number of the screening net 26 gradually increases from top to bottom, the double-shaft motor 21 and the ultrasonic generator are started, the double-shaft motor 21 drives the swing hammer 22 to rotate, so that the mounting seat 11, the bottom shell 231 and the screening ring 23 vibrate as a whole, at the same time, the ultrasonic generator and the ultrasonic transducer generate ultrasonic waves, so that the screening net 26 vibrates as a whole under the ultrasonic waves, and the falling magnesium powder is screened.
[0026] In the embodiment, the discharging mechanism comprises a rotating shaft 31 vertically penetrating through the bottom plate 25 and the screening net 26, a conical blocking table 32 arranged on the upper side of the uppermost screening net 26 on the rotating shaft 31, a material scattering piece 33 arranged on the upper side of the conical blocking table 32, and an auger blade 34 arranged on the upper side of the material scattering piece 33; the rotating shaft 31 is connected with the output shaft at the upper end of the double-shaft motor 21 through a shaft coupling, and the rotating shaft 31 is rotationally connected with the bottom plate 25 and the screening net 26; a feeding pipe is arranged at the center position of the upper end of the feeding cover 27, the auger blade 34 is welded with the rotating shaft 31, and the auger blade 34 is tangent to the inner wall of the feeding pipe; a flange protruding upward is arranged at the center of the bottom plate 25 and the screening net 26 outside the rotating shaft 31, so as to block and protect the magnesium powder falling on the bottom plate 25 and the screening net 26 from entering the rotating gap of the rotating shaft 31; the rotating shaft 31 rotates when the double-shaft motor 21 works, so as to drive the conical blocking table 32, the material scattering piece 33 and the auger blade 34 to rotate, so that the auger blade 34 stably and orderly drops the magnesium powder in the feeding pipe, and the magnesium powder is thrown outward through the material scattering piece 33 in the falling process, so as to improve the uniformity of the falling magnesium powder.
[0027] The utility model discloses a working principle and use flow: magnesium powder is added to the feeding pipe on the upper loading cover 27 of pipe communication, starts double shaft motor 21 and ultrasonic generator, and double shaft motor 21 drives swing hammer 22 to rotate, makes mounting base 11 whole vibration, simultaneously, ultrasonic generator and ultrasonic transducer produce ultrasonic wave, make screening net 26 whole ultrasonic vibration, and double shaft motor 21 drives the rotation of conical baffle 32, bulk material piece 33 and auger blade 34 on pivot shaft 31, makes auger blade 34 the magnesium powder in feeding pipe steady orderly falls, falls in the process through bulk material piece 33 and throws magnesium powder to the outside, improves the uniformity of magnesium powder falling, makes the magnesium powder on screening net 26 fast pass through screening.
[0028] The above shows and describes the basic principle, main features and advantages of the utility model. The skilled person in the art should understand that the utility model is not limited by the above examples, and the above examples and descriptions in the specification are only to illustrate the principle of the utility model. Without departing from the spirit and scope of the utility model, the utility model can have various changes and improvements, and these changes and improvements fall within the scope of the claimed utility model.
Claims
1. A sieving device for spherical magnesium powder, comprising a base (1), wherein an mounting seat (11) is elastically connected to the upper end of the base (1), and an ultrasonic vibration sieving mechanism is provided on the mounting seat (11), characterized in that: The ultrasonic vibrating screen mechanism is connected to a feeding mechanism for uniformly feeding spherical magnesium powder; the ultrasonic vibrating screen mechanism includes a dual-axis motor (21) mounted on the mounting base (11), a swing hammer (22) is provided on the lower output shaft of the dual-axis motor (21), a bottom shell (231) is fixed at the upper end of the mounting base (11), a bottom plate (25) is fixed at the bottom of the bottom shell (231), at least two screening rings (23) are connected in sequence in the longitudinal direction of the bottom shell (231), a screening screen (26) is provided in the screening ring (23), and the screening screen (26) is provided in the screening ring (26). 6) An ultrasonic transducer is connected to the rear end, and a feeding hood (27) is connected to the uppermost screening ring (23). A discharge cylinder (24) is connected to the side wall of the screening ring (23) and the bottom shell (231). The feeding mechanism includes a rotating shaft (31) that passes vertically through the bottom plate (25) and the screening screen (26). A conical baffle (32) is provided on the uppermost screening screen (26) on the rotating shaft (31). A material distribution plate (33) is provided on the upper side of the conical baffle (32). An auger blade (34) is provided on the upper side of the material distribution plate (33).
2. The sieving device for spherical magnesium powder according to claim 1, characterized in that: The rotating shaft (31) is connected to the output shaft at the upper end of the dual-shaft motor (21) via a coupling, and the rotating shaft (31) is rotatably connected to the base plate (25) and the screening screen (26).
3. A sieving device for spherical magnesium powder according to claim 2, characterized in that: The bottom plate (25) and the screening screen (26) have an upwardly protruding flange located outside the rotating shaft (31) at their center.
4. A sieving device for spherical magnesium powder according to claim 1, characterized in that: The feeding hood (27) has a feeding pipe at the center of its upper end. The auger blade (34) is welded to the rotating shaft (31), and the auger blade (34) is tangent to the inner wall of the feeding pipe.
5. A sieving device for spherical magnesium powder according to claim 1, characterized in that: The upper side of the screening mesh (26) is horizontal and the perimeter is inclined downward. The bottom shell (231) and the screening ring (23), as well as the adjacent screening rings (23), are connected by pipe clamps.
6. A sieving device for spherical magnesium powder according to claim 5, characterized in that: The mesh size of the screening screen (26) gradually increases from top to bottom.