CN220004254U - Spiral returning charge device with screening function - Google Patents

Spiral returning charge device with screening function Download PDF

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Publication number
CN220004254U
CN220004254U CN202320491321.0U CN202320491321U CN220004254U CN 220004254 U CN220004254 U CN 220004254U CN 202320491321 U CN202320491321 U CN 202320491321U CN 220004254 U CN220004254 U CN 220004254U
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China
Prior art keywords
screening
spiral
returning
wall
material returning
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CN202320491321.0U
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Chinese (zh)
Inventor
周振华
张作金
杨帅峰
张占峰
吴天来
李志�
何英楠
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Chengde Baotong Mining Co ltd
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Chengde Baotong Mining Co ltd
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Priority to CN202320491321.0U priority Critical patent/CN220004254U/en
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Abstract

The utility model discloses a spiral returning device with a screening function, relates to the technical field of ball mills, and aims at solving the problem that the existing ball mill cannot screen coarse grains out and return to the ball mill again for re-grinding after grinding is completed. The utility model is designed with the vibration screening mechanism, so that the materials discharged from the discharge port of the ball mill can be subjected to vibration screening, coarse grains can enter the spiral material returning mechanism, and the coarse grains are conveyed back to the ball mill for secondary grinding by the spiral material returning mechanism, thereby ensuring the grinding effect of the ball mill; the spiral material returning mechanism designed by the utility model not only can convey coarse materials back to the ball mill for re-grinding, but also can reduce the material dropping condition in the material returning conveying process compared with the traditional belt conveying.

Description

Spiral returning charge device with screening function
Technical Field
The utility model relates to the technical field of ball mills, in particular to a spiral returning device with a screening function.
Background
The ball mill is suitable for grinding various ores and other materials, and is widely used in the industries of mineral separation, building materials, chemical industry and the like. The patent of application number 202221309992.2, which is searched, discloses a ball mill, which comprises a frame, a supporting device, a ball milling cylinder body, a driving device and the like.
Although the above patent has certain advantages, the ball mill in the prior art cannot screen out coarse particles after finishing the grinding, and returns the coarse particles to the ball mill again for grinding again, so that the grinding effect of the ball mill is reduced. Thus, a spiral return device with screening function needs to be studied.
Disclosure of Invention
Aiming at the defects of the prior art, the utility model provides the spiral returning device with the screening function, which overcomes the defects of the prior art by designing the spiral returning mechanism and the vibration screening mechanism, and effectively solves the problem that the existing ball mill cannot screen coarse grains out after finishing grinding materials and returns the coarse grains into the ball mill again for grinding materials.
In order to achieve the above purpose, the present utility model adopts the following technical scheme:
the spiral material returning device with the screening function comprises a supporting frame, wherein a material returning inclined cylinder is welded on the outer wall of the top end of the supporting frame, and a spiral material returning mechanism and a vibration screening mechanism are sequentially arranged on the material returning inclined cylinder;
the spiral returning mechanism comprises a transmission inclined shaft rotatably arranged in the returning inclined cylinder, a spiral conveying blade fixedly arranged on the outer wall of the transmission inclined shaft and a driving assembly;
the vibration screening mechanism comprises an L-shaped connecting frame fixedly arranged on the outer wall of the top of the returning inclined cylinder, a screening box fixedly arranged on the outer wall of the top of the L-shaped connecting frame, a screening net connected with the inner wall of the bottom of the screening box through two groups of equidistant supporting springs, a connecting frame fixedly arranged on the outer wall of the bottom of the screening net and a vibration motor fixedly arranged on the connecting frame.
Preferably, the driving assembly comprises a driving motor fixedly arranged on the outer wall of the lower side of the returning inclined cylinder, a driving gear fixedly arranged on the output shaft of the driving motor and a driven gear fixedly arranged on the transmission inclined shaft.
Preferably, the driving gear and the driven gear are meshed with each other, and the driving motor is connected with a control switch through a wire.
Preferably, the upper part of one side of the screening box is fixedly communicated with a coarse grain discharge pipe, and the screening net is obliquely arranged.
Preferably, the lower part of the other side of the screening box is fixedly communicated with a fine particle discharge pipe, and a fine particle collecting box positioned below the fine particle discharge pipe is arranged on the supporting frame.
Preferably, a discharging pipe is fixedly communicated above the bottom of the material returning inclined cylinder.
The beneficial effects of the utility model are as follows:
1. the vibration screening mechanism is designed, so that materials discharged from the discharge port of the ball mill can be subjected to vibration screening, fine materials and coarse particles are discharged from the fine particle discharge pipe and the coarse particle discharge pipe respectively after vibration screening, and then coarse particles enter the spiral material returning mechanism and are conveyed back into the ball mill for secondary grinding by the spiral material returning mechanism, and the grinding effect of the ball mill is ensured;
2. the spiral material returning mechanism designed by the utility model not only can convey coarse materials back to the ball mill for re-grinding, but also can reduce the material dropping condition in the material returning conveying process compared with the traditional belt conveying.
Drawings
FIG. 1 is a schematic cross-sectional view of the present utility model;
FIG. 2 is an enlarged schematic view of the portion A of FIG. 1 according to the present utility model;
FIG. 3 is a schematic diagram of the meshing of a driving gear and a driven gear according to the present utility model;
fig. 4 is an enlarged schematic view of the vibration screening mechanism according to the present utility model.
In the figure: 1. a support frame; 2. a material returning inclined cylinder; 3. a transmission inclined shaft; 4. spiral conveying blades; 5. a driving motor; 6. a drive gear; 7. a driven gear; 8. an L-shaped connecting frame; 9. a screening box; 10. a support spring; 11. screening net; 12. a connection frame; 13. a vibration motor; 14. a coarse grain discharge pipe; 15. a fine particle discharge pipe; 16. a fine particle collection box; 17. and (5) blanking pipes.
Detailed Description
The following description of the embodiments of the present utility model will be made with reference to the accompanying drawings, in which it is evident that the embodiments described are only some embodiments of the present utility model, but not all embodiments.
Embodiment 1, referring to fig. 1-3, a spiral material returning device with screening function comprises a supporting frame 1, a material returning inclined cylinder 2 and a spiral material returning mechanism;
the material returning inclined cylinder 2 is welded on the outer wall of the top end of the supporting frame 1, and the spiral material returning mechanism specifically comprises the following components:
driving inclined shaft 3: the transmission inclined shaft 3 is respectively connected with the inner walls of the two sides of the material returning inclined cylinder 2 in a penetrating way through two bearings;
screw conveyor blade 4: the spiral conveying blade 4 is welded on the outer wall of the transmission inclined shaft 3;
and a driving assembly: the driving assembly comprises a driving motor 5 fixed on the outer wall of the lower side of the returning inclined cylinder 2 through bolts, a driving gear 6 fixedly sleeved on the output shaft of the driving motor 5 and a driven gear 7 fixedly sleeved on the transmission inclined shaft 3, the driving gear 6 is meshed with the driven gear 7, and the driving motor 5 is connected with a control switch through a lead;
in the present embodiment, the driving motor 5 controls the driving gear 6 to rotate, and the driven gear 7 meshed with the driving gear 6 controls the spiral conveying blade 4 on the transmission inclined shaft 3 to rotate, so that coarse materials entering the return inclined cylinder 2 can be conveyed.
Example 2, referring to fig. 1 and 4, this example is optimized based on example 1, specifically: the spiral returning charge device with screening function still includes vibrations screening mechanism, and vibrations screening mechanism specifically comprises following parts:
l-shaped connecting frame 8 and screening box 9: the L-shaped connecting frame 8 is welded on the top outer wall of the return inclined cylinder 2, and the screening box 9 is welded on the top outer wall of the L-shaped connecting frame 8;
screening net 11: the screening net 11 is connected with the inner wall of the bottom of the screening box 9 through two groups of supporting springs 10 which are distributed at equal intervals, and the screening net 11 is obliquely arranged;
connection frame 12 and vibrating motor 13: the connecting frame 12 is fixed on the outer wall of the bottom of the screening net 11, and the vibration motor 13 is fixed on the connecting frame 12;
the screening net 11 is obliquely arranged, the lower part of the other side of the screening box 9 is fixedly communicated with a fine grain discharge pipe 15, a fine grain collecting box 16 positioned below the fine grain discharge pipe 15 is arranged on the supporting frame 1, and a blanking pipe 17 is fixedly communicated with the upper part of the bottom of the return inclined cylinder 2.
Working principle: when the screening box 9 is used, the screening box 9 is arranged at the discharge hole of the ball mill, the discharging pipe 17 is communicated with the feeding pipe of the ball mill, so coarse grains and fine grains entering the screening box 9 from the discharge hole of the ball mill are screened through the cooperation of the vibrating motor 13 and the screening net 11, and then the coarse grains enter the returning inclined cylinder 2 from the coarse grain discharge pipe 14, and the fine grains enter the fine grain collecting box 16 from the fine grain discharge pipe 15 for unified collection;
secondly, the driving gear 6 is controlled to rotate through the driving motor 5, the driven gear 7 meshed with the driving gear 6 further controls the spiral conveying blade 4 on the transmission inclined shaft 3 to rotate, coarse materials entering the material returning inclined cylinder 2 can be conveyed, and finally the coarse materials are returned to the ball mill from the blanking pipe 17 after being conveyed and are ground again.
The foregoing is only a preferred embodiment of the present utility model, but the scope of the present utility model is not limited thereto, and any person skilled in the art, who is within the scope of the present utility model, should make equivalent substitutions or modifications according to the technical scheme of the present utility model and the inventive concept thereof, and should be covered by the scope of the present utility model.

Claims (6)

1. The spiral material returning device with the screening function comprises a supporting frame (1) and is characterized in that a material returning inclined cylinder (2) is welded on the outer wall of the top end of the supporting frame (1), and a spiral material returning mechanism and a vibration screening mechanism are sequentially arranged on the material returning inclined cylinder (2);
the spiral material returning mechanism comprises a transmission inclined shaft (3) rotatably arranged in the material returning inclined cylinder (2), a spiral conveying blade (4) fixedly arranged on the outer wall of the transmission inclined shaft (3) and a driving assembly;
the vibration screening mechanism comprises an L-shaped connecting frame (8) fixedly arranged on the outer wall of the top of the returning inclined cylinder (2), a screening box (9) fixedly arranged on the outer wall of the top of the L-shaped connecting frame (8), a screening net (11) connected with the inner wall of the bottom of the screening box (9) through two groups of supporting springs (10) which are distributed at equal intervals, a connecting frame (12) fixedly arranged on the outer wall of the bottom of the screening net (11) and a vibration motor (13) fixedly arranged on the connecting frame (12).
2. The spiral returning charge device with the screening function according to claim 1, wherein the driving assembly comprises a driving motor (5) fixedly arranged on the outer wall of the lower side of the returning charge inclined cylinder (2), a driving gear (6) fixedly arranged on an output shaft of the driving motor (5) and a driven gear (7) fixedly arranged on the transmission inclined shaft (3).
3. A spiral return device with screening function according to claim 2, characterized in that the driving gear (6) and the driven gear (7) are engaged with each other, and the driving motor (5) is connected with a control switch by means of a wire.
4. A spiral return device with screening function according to claim 1, characterized in that the screening box (9) is fixedly connected with a coarse grain discharge pipe (14) at the upper part of one side, and the screening net (11) is arranged obliquely.
5. A spiral returning charge device with screening function according to claim 1, characterized in that the lower part of the other side of the screening box (9) is fixedly communicated with a fine grain discharging pipe (15), and the supporting frame (1) is provided with a fine grain collecting box (16) positioned below the fine grain discharging pipe (15).
6. The spiral returning device with the screening function according to claim 1, wherein a blanking pipe (17) is fixedly communicated above the bottom of the returning inclined cylinder (2).
CN202320491321.0U 2023-03-15 2023-03-15 Spiral returning charge device with screening function Active CN220004254U (en)

Priority Applications (1)

Application Number Priority Date Filing Date Title
CN202320491321.0U CN220004254U (en) 2023-03-15 2023-03-15 Spiral returning charge device with screening function

Applications Claiming Priority (1)

Application Number Priority Date Filing Date Title
CN202320491321.0U CN220004254U (en) 2023-03-15 2023-03-15 Spiral returning charge device with screening function

Publications (1)

Publication Number Publication Date
CN220004254U true CN220004254U (en) 2023-11-14

Family

ID=88691604

Family Applications (1)

Application Number Title Priority Date Filing Date
CN202320491321.0U Active CN220004254U (en) 2023-03-15 2023-03-15 Spiral returning charge device with screening function

Country Status (1)

Country Link
CN (1) CN220004254U (en)

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