Screening device for powder preparation of refractory material

Abstract

The utility model belongs to the technical field of screening devices, and particularly relates to a screening device for preparing powder from refractory materials, which comprises a base, a screening cylinder, a cleaning mechanism and a linkage mechanism, the transverse screening cylinder is fixedly mounted on two sides of the top of the base through a mounting frame, and the screening cylinder is hollow and cylindrical with two closed ends; screening holes are evenly formed in the lower half portion of the side wall of the screening cylinder, a stirring mechanism is arranged in the screening cylinder and comprises a transverse stirring rod rotationally arranged in the center of the side wall of an inner cavity of the screening cylinder through a bearing, and stirring blades are evenly and fixedly installed on the outer side of a rod body of the stirring rod in a surrounding mode. According to the utility model, synchronous operation of stirring and cleaning is realized through mechanical linkage, adhered materials inside and outside the sieve pores are continuously removed, the blocking frequency is reduced, and the screening continuity is improved.

Description

Technical Field

[0001] This utility model relates to the field of screening device technology, specifically a screening device for refractory material powder preparation. Background Technology

[0002] In the field of refractory powder production, screening is a key process for controlling powder particle size. Traditional screening devices are prone to clogging of the sieve holes: refractory powders such as alumina and magnesia have rough surfaces and are easily stuck inside and outside the sieve holes during screening, requiring machine shutdown for cleaning, resulting in low production efficiency. Therefore, it is necessary to develop a screening device for refractory powder production. Utility Model Content

[0003] The purpose of this section is to outline some aspects of the embodiments of this utility model and to briefly introduce some preferred embodiments. Simplifications or omissions may be made in this section, as well as in the abstract and title of this application, to avoid obscuring the purpose of these documents; however, such simplifications or omissions should not be used to limit the scope of this utility model.

[0004] To solve the above-mentioned technical problems, according to one aspect of the present invention, the present invention provides the following technical solution:

[0005] A screening device for refractory material powder making includes a base, a screening cylinder, a cleaning mechanism, and a linkage mechanism. The top two sides of the base are fixedly mounted with horizontal screening cylinders by mounting brackets. The screening cylinder is a hollow cylinder with closed ends. Screening holes are evenly opened in the lower half of the side wall of the screening cylinder. A stirring mechanism is provided inside the screening cylinder. The stirring mechanism includes a horizontal stirring rod that is rotatably mounted in the center of the inner cavity side wall of the screening cylinder by bearings. Stirring blades are evenly fixedly mounted around the outside of the stirring rod.

[0006] The cleaning mechanism is used to clean the inner and outer sides of the screening holes. It includes an annular mounting ring spaced on the outer side of the screening cylinder and an annular connecting ring spaced on the inner side of the screening cylinder. The mounting ring and the connecting ring are fixedly connected by a connecting block. The connecting ring and the mounting ring are concentrically arranged and reciprocate along the transverse axis of the stirring rod. The inner side of the connecting ring is always spaced from the stirring blade. The inner side of the mounting ring and the outer side of the connecting ring are evenly provided with inner cleaning bristles and outer cleaning bristles for cleaning the inner and outer sides of the connecting ring, respectively, near the screening holes.

[0007] The linkage mechanism is used to synchronously drive the mounting ring and connecting ring to move laterally back and forth when the stirring rod rotates.

[0008] In a preferred embodiment of the screening device for refractory material powder production described in this utility model, a receiving frame is placed on the top of the base, the receiving frame is located directly below the screening hole opening area, and a handle is fixedly installed on the front side of the receiving frame.

[0009] As a preferred embodiment of the screening device for refractory powder making described in this utility model, the screening cylinder has a feed inlet at the upper position of its side wall, and a sealing cover is hinged to the feed inlet. The mounting ring maintains a distance from the sealing cover when it moves back and forth.

[0010] As a preferred embodiment of the screening device for refractory material powder making described in this utility model, the screening cylinder has a discharge port on its lower side, and a sealing door is hinged on the discharge port. The mounting ring maintains a distance from the sealing door during its reciprocating movement.

[0011] As a preferred embodiment of the screening device for refractory material powder making described in this utility model, a servo motor is fixedly installed at the center of the right side wall of the screening cylinder. The output shaft of the servo motor rotates through the side wall of the screening cylinder via a sealed bearing, and the end of the output shaft of the servo motor is connected to the right end of the stirring rod via a coupling.

[0012] In a preferred embodiment of the screening device for refractory material powder making described in this utility model, the top of the screening cylinder is provided with a sliding opening along the moving direction of the connecting block, and the vertical gap of the connecting block passes through the sliding opening.

[0013] As a preferred embodiment of the screening device for refractory material powder making described in this utility model, the linkage mechanism includes brackets fixed at both ends of the upper and lower side walls of the screening cylinder. A transverse reciprocating screw is rotatably arranged between the two upper brackets via bearings, and a transverse guide slide is fixed between the two lower brackets. The side wall of the mounting ring is provided with a nut adapted to the reciprocating screw and a linear bearing adapted to the guide slide. The nut and the reciprocating screw are driven by transmission. The rotating reciprocating screw drives the nut to move back and forth. The linear bearing and the guide slide are slidably connected.

[0014] As a preferred embodiment of the refractory material powder screening device of this utility model, the linkage mechanism further includes a worm gear disposed at the left end of the reciprocating screw, a fixed frame is fixedly installed on the left side wall of the screening cylinder, a linkage rod is rotatably installed on the fixed frame through a bearing, a worm gear meshing with the worm gear is fixedly installed at the upper end of the linkage rod, and a linkage bevel gear is fixedly installed at the lower end, and a drive bevel gear meshing with the linkage bevel gear is fixedly installed at the left end of the stirring rod through the left side wall of the screening cylinder through a sealed bearing.

[0015] As a preferred embodiment of the screening device for refractory material powder making described in this utility model, a receiving shell is fixedly installed on the left side wall of the screening cylinder, and the inner cavity of the receiving shell accommodates a worm gear, a fixed frame, a linkage rod, a worm, a linkage bevel gear, and a drive bevel gear.

[0016] The beneficial effects of this invention are as follows: When the stirring rod rotates, the stirring blades stir the material, preventing material accumulation and facilitating material screening. Furthermore, the active bevel gear and the linkage bevel gear drive the linkage rod to rotate, which in turn drives the reciprocating screw through the worm and worm wheel, thereby driving the mounting ring to move back and forth. The inner and outer cleaning bristles simultaneously clean the inside and outside of the screening holes, reducing the possibility of material clogging and improving material screening. The mechanical linkage enables simultaneous stirring and cleaning, continuously removing adhering material inside and outside the screen holes, reducing clogging frequency, and improving screening continuity. Attached Figure Description

[0017] To more clearly illustrate the technical solutions of the embodiments of this utility model, the present utility model will be described in detail below with reference to the accompanying drawings and detailed embodiments. Obviously, the drawings described below are only some embodiments of this utility model. For those skilled in the art, other drawings can be obtained based on these drawings without creative effort. Among them:

[0018] Figure 1 This is a schematic diagram of the structure of this utility model;

[0019] Figure 2 This utility model Figure 1 A schematic diagram of the structure from a side view;

[0020] Figure 3 This is a schematic diagram of the internal components of the screening cylinder of this utility model;

[0021] Figure 4 This utility model Figure 3 A side view of the structure housing the internal components of the shell;

[0022] Figure 5 This is a schematic diagram of the structure of the mounting ring of this utility model when it moves;

[0023] Figure 6 This is a structural schematic diagram of the mounting ring and other components of this utility model.

[0024] In the diagram: base 100, mounting bracket 110, receiving frame 120, handle 130, servo motor 140, stirring rod 150, stirring blade 160, screening cylinder 200, feed inlet 210, sealing door 220, screening hole 230, mounting ring 300, connecting block 310, connecting ring 320, inner cleaning brush 330, outer cleaning brush 340, sliding mouth 350, screw nut 360, linear bearing 370, bracket 400, reciprocating screw 410, guide slide rod 420, worm gear 430, fixed frame 440, linkage rod 450, worm gear 460, linkage bevel gear 470, drive bevel gear 480, receiving shell 490. Detailed Implementation

[0025] To make the above-mentioned objectives, features and advantages of this utility model more apparent and understandable, the specific embodiments of this utility model will be described in detail below with reference to the accompanying drawings.

[0026] Many specific details are set forth in the following description in order to provide a full understanding of the present invention. However, the present invention may also be implemented in other ways different from those described herein. Those skilled in the art can make similar extensions without departing from the spirit of the present invention. Therefore, the present invention is not limited to the specific embodiments disclosed below.

[0027] Secondly, this utility model is described in detail with reference to the schematic diagrams. When describing the embodiments of this utility model, for ease of explanation, the cross-sectional views showing the device structure may be partially enlarged, not according to the usual scale. Furthermore, the schematic diagrams are merely examples and should not limit the scope of protection of this utility model. In addition, in actual manufacturing, the three-dimensional spatial dimensions of length, width, and depth should be included.

[0028] To make the objectives, technical solutions, and advantages of this utility model clearer, the embodiments of this utility model will be described in further detail below with reference to the accompanying drawings.

[0029] Please see Figures 1-6 The diagram shown is a structural schematic of an embodiment of a screening device for refractory material powder preparation according to this utility model. Please refer to [link / reference]. Figures 1-6 This paper provides a detailed description of a screening device for refractory material powder preparation.

[0030] Example 1: A screening device for refractory material powder making includes a base 100, a screening cylinder 200, a cleaning mechanism, and a linkage mechanism. The top two sides of the base 100 are fixedly mounted with horizontal screening cylinders 200 via mounting brackets 110. The screening cylinder 200 is a hollow cylinder with closed ends. Screening holes 230 are evenly opened in the lower half of the side wall of the screening cylinder 200. It should be noted that the screening holes 230 are hole-shaped, while the similar strip shape in the figure is only for schematic diagram. The holes are one of the following: circular, rectangular, and triangular. A stirring mechanism is provided inside the screening cylinder 200. The stirring mechanism includes a horizontal stirring rod 150 that is rotatably mounted in the center of the inner cavity side wall of the screening cylinder 200 via bearings. Stirring blades 160 are evenly fixedly mounted around the outside of the stirring rod 150.

[0031] The cleaning mechanism is used to clean the inner and outer sides of the screening hole 230. It includes an annular mounting ring 300 spaced on the outer side of the screening cylinder 200 and an annular connecting ring 320 spaced on the inner side of the screening cylinder 200. The mounting ring 300 and the connecting ring 320 are fixedly connected by a connecting block 310. The connecting ring 320 and the mounting ring 300 are concentrically arranged and reciprocate along the transverse axis of the stirring rod 150. The inner side of the connecting ring 320 is always spaced from the stirring blade 160. The inner side of the mounting ring 300 and the outer side of the connecting ring 320 near the screening hole 230 are evenly provided with inner cleaning bristles 330 and outer cleaning bristles 340 for cleaning the inner and outer sides of the connecting ring 320, respectively. The inner cleaning bristles 330 and the outer cleaning bristles 340 are made of a material with a certain elasticity, such as rubber or other materials. Their length can extend into the mesh of the screening hole 230 without obstructing the reciprocating movement of the mounting ring 300.

[0032] The linkage mechanism is used to synchronously drive the mounting ring 300 and the connecting ring 320 to move laterally back and forth when the stirring rod 150 rotates.

[0033] Furthermore, a receiving frame 120 is placed on the top of the base 100. The receiving frame 120 is located directly below the area where the screening hole 230 is opened. A handle 130 is fixedly installed on the front side of the receiving frame 120. The receiving frame 120 is used to receive the screened material.

[0034] Furthermore, a feed inlet 210 is opened on the upper side wall of the screening cylinder 200. A sealing cover is hinged on the feed inlet 210. The sealing cover is not shown in the figure. When the mounting ring 300 moves back and forth, it always maintains a distance from the sealing cover to avoid collision between the mounting ring 300 and the sealing cover when moving back and forth.

[0035] Furthermore, the screening cylinder 200 has a discharge port on its lower side, which is not shown in the figure. Its main function is to remove the material that has not passed the screening through the discharge port. A sealing door 220 is hinged on the discharge port. When the mounting ring 300 moves back and forth, it always maintains a distance from the sealing door 220 to avoid collision between the mounting ring 300 and the sealing door 220 when moving back and forth.

[0036] Furthermore, a servo motor 140 is fixedly installed at the center of the right side wall of the screening cylinder 200. The output shaft of the servo motor 140 rotates through the side wall of the screening cylinder 200 via a sealed bearing, and the end of the output shaft of the servo motor 140 is connected to the right end of the stirring rod 150 via a coupling. The servo motor 140 can drive the stirring rod 150 and the stirring blade 160 to rotate, and the stirring blade 160 stirs the material to avoid material accumulation and facilitate material screening.

[0037] Furthermore, the top of the screening cylinder 200 is provided with a sliding opening 350 along the moving direction of the connecting block 310, and the connecting block 310 passes through the sliding opening 350 with a vertical gap. When the mounting ring 300 moves back and forth, the connecting block 310 moves along the opening direction of the sliding opening 350.

[0038] Example 2, based on Example 1, the linkage mechanism includes brackets 400 fixed to the upper and lower side walls of the screening cylinder 200. A transverse reciprocating screw 410 is rotatably mounted between the two upper brackets 400 via bearings, and a transverse guide slide rod 420 is fixedly mounted between the two lower brackets 400. The side wall of the mounting ring 300 is provided with a nut 360 adapted to the reciprocating screw 410 and a linear bearing 370 adapted to the guide slide rod 420. The nut 360 and the reciprocating screw 410 are driven by transmission; the rotating reciprocating screw 410 drives the nut 360 to reciprocate. The linear bearing 370 and the guide slide rod 420 are slidably connected. The linkage mechanism also includes a worm gear 430 located at the left end of the reciprocating screw 410, and a fixing frame 440 is fixedly mounted on the left side wall of the screening cylinder 200. A linkage rod 450 is rotatably mounted on the fixed frame 440 via a bearing. The upper end of the linkage rod 450 is fixedly mounted with a worm 460 that meshes with a worm gear 430, and the lower end is fixedly mounted with a linkage bevel gear 470. The left end of the stirring rod 150 rotatably passes through the left side wall of the screening cylinder 200 via a sealed bearing and is fixedly mounted with a drive bevel gear 480 that meshes with the linkage bevel gear 470. When the stirring rod 150 rotates, the drive bevel gear 480 and the linkage bevel gear 470 drive the linkage rod 450 to rotate, which in turn drives the reciprocating screw 410 to rotate via the worm 460 and the worm gear 430, thereby driving the mounting ring 300 to move back and forth. The inner cleaning bristles 330 and the outer cleaning bristles 340 simultaneously clean the inner and outer sides of the screening holes 230, reducing the possibility of the screening holes 230 being blocked by materials, which is beneficial for material screening.

[0039] Furthermore, a receiving shell 490 is fixedly installed on the left side wall of the screening cylinder 200. The inner cavity of the receiving shell 490 accommodates the worm gear 430, the fixing frame 440, the linkage rod 450, the worm 460, the linkage bevel gear 470, and the driving bevel gear 480. It should be noted that the receiving shell 490 only serves to accommodate the components and prevents the components from being directly exposed to the outside world, and does not hinder the movement of any components.

[0040] Although the present invention has been described above with reference to embodiments, various modifications can be made and components can be replaced with equivalents without departing from the scope of the present invention. In particular, as long as there is no structural conflict, the features in the embodiments disclosed in this invention can be combined with each other in any way. The lack of an exhaustive description of these combinations in this specification is merely for the sake of brevity and resource conservation. Therefore, the present invention is not limited to the specific embodiments disclosed herein, but includes all technical solutions falling within the scope of the claims.

Claims

1. A screening device for refractory material powder preparation, comprising a base (100), a screening cylinder (200), a cleaning mechanism, and a linkage mechanism, characterized in that: The top two sides of the base (100) are fixedly mounted with horizontal screening cylinders (200) by mounting brackets (110). The screening cylinder (200) is a hollow cylinder with closed ends. Screening holes (230) are evenly opened in the lower half of the side wall of the screening cylinder (200). A stirring mechanism is provided inside the screening cylinder (200). The stirring mechanism includes a horizontal stirring rod (150) that is rotatably set in the center of the inner cavity side wall of the screening cylinder (200) by bearings. Stirring blades (160) are evenly fixedly mounted around the outside of the stirring rod (150). The cleaning mechanism is used to clean the inner and outer sides of the screening hole (230), including an annular mounting ring (300) spaced on the outer side of the screening cylinder (200) and an annular connecting ring (320) spaced on the inner side of the screening cylinder (200). The mounting ring (300) and the connecting ring (320) are fixedly connected by a connecting block (310). The connecting ring (320) and the mounting ring (300) are concentrically arranged and reciprocate along the transverse axis of the stirring rod (150). The inner side of the connecting ring (320) is always spaced from the stirring blade (160). The inner side of the mounting ring (300) and the outer side of the connecting ring (320) near the screening hole (230) are evenly provided with inner cleaning bristles (330) and outer cleaning bristles (340) for cleaning the inner and outer sides of the connecting ring (320). The linkage mechanism is used to synchronously drive the mounting ring (300) and the connecting ring (320) to move laterally and reciprocally when the stirring rod (150) rotates.

2. The screening device for refractory material powder preparation according to claim 1, characterized in that: A receiving frame (120) is placed on top of the base (100), the receiving frame (120) is located directly below the area where the screening hole (230) is opened, and a handle (130) is fixedly installed on the front side of the receiving frame (120).

3. The screening device for refractory material powder preparation according to claim 1, characterized in that: The screening cylinder (200) has a feed inlet (210) on its upper side wall. A sealing cover is hinged to the feed inlet (210). The mounting ring (300) maintains a distance from the sealing cover when it moves back and forth.

4. The screening device for refractory material powder preparation according to claim 1, characterized in that: The screening cylinder (200) has a discharge port on its lower side, and a sealing door (220) is hinged on the discharge port. The mounting ring (300) always maintains a distance from the sealing door (220) when it moves back and forth.

5. A screening device for refractory material powder preparation according to claim 1, characterized in that: A servo motor (140) is fixedly installed at the center of the right side wall of the screening cylinder (200). The output shaft of the servo motor (140) rotates through the side wall of the screening cylinder (200) via a sealed bearing, and the end of the output shaft of the servo motor (140) is connected to the right end of the stirring rod (150) via a coupling.

6. A screening device for refractory material powder preparation according to claim 1, characterized in that: The top of the screening cylinder (200) is provided with a sliding opening (350) along the moving direction of the connecting block (310), and the vertical gap of the connecting block (310) passes through the sliding opening (350).

7. A screening device for refractory material powder preparation according to claim 1, characterized in that: The linkage mechanism includes brackets (400) fixed at both ends of the upper and lower side walls of the screening cylinder (200). A transverse reciprocating screw (410) is rotatably arranged between the two upper brackets (400) via bearings, and a transverse guide slide (420) is fixed between the two lower brackets (400). The side wall of the mounting ring (300) is provided with a nut (360) adapted to the reciprocating screw (410) and a linear bearing (370) adapted to the guide slide (420). The nut (360) and the reciprocating screw (410) are driven together. The rotating reciprocating screw (410) drives the nut (360) to move back and forth. The linear bearing (370) and the guide slide (420) are slidably connected.

8. A screening device for refractory material powder preparation according to claim 7, characterized in that: The linkage mechanism also includes a worm gear (430) disposed at the left end of the reciprocating screw (410). A fixing frame (440) is fixedly installed on the left side wall of the screening cylinder (200). A linkage rod (450) is rotatably installed on the fixing frame (440) through a bearing. A worm (460) meshing with the worm gear (430) is fixedly installed at the upper end of the linkage rod (450), and a linkage bevel gear (470) is fixedly installed at the lower end. The left end of the stirring rod (150) rotatably passes through the left side wall of the screening cylinder (200) through a sealed bearing and is fixedly installed with a drive bevel gear (480) meshing with the linkage bevel gear (470).

9. A screening device for refractory material powder preparation according to claim 8, characterized in that: The left side wall of the screening cylinder (200) is fixedly installed with a receiving shell (490), and the inner cavity of the receiving shell (490) accommodates the worm gear (430), the fixing frame (440), the linkage rod (450), the worm (460), the linkage bevel gear (470), and the drive bevel gear (480).

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